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公开(公告)号：KR100920387B1
公开(公告)日：2009-10-07
申请号：KR1020060062792
申请日：2006-07-05
Applicant: 삼성전자주식회사
Inventor： 김남기
CPC classification number: H04W52/346 , H04W72/046
Abstract: 본 발명은 적응적 안테나 시스템의 무선 자원 할당 장치 및 방법에 관한 것으로서, 현재 공간 프레임에 할당 가능한 하나 이상의 사용자가 존재할 시, 하나의 사용자를 선택하는 과정과, 기지국의 총 송신 전력을 현재 공간 프레임 인덱스로 나누었을 경우, 상기 선택된 사용자를 포함하여 같은 무선 자원을 할당받는 사용자들에 대한 MPR(Modulation order Product code Rate) 값의 합을 계산하는 과정과, 상기 계산된 값과 이전 공간 프레임에 할당된 사용자들에 대한 MPR 값의 합을 고려하여 상기 선택된 사용자를 현재 공간 프레임에 할당하는 과정을 포함하여, 시스템 성능이나 스케줄러 성능을 최대화할 수 있는 이점이 있다.
SDMA, 적응 안테나, CINR, 무선 자원 할당-
公开(公告)号：KR100915805B1
公开(公告)日：2009-09-07
申请号：KR1020060055246
申请日：2006-06-20
Applicant: 삼성전자주식회사
IPC: H04B7/005
CPC classification number: H04L1/0083 , H04L1/0041 , H04L1/1812 , H04W28/06
Abstract: 본 발명은 광대역 무선통신시스템에서 MAC(Media Access Control)계층 데이터 통신 장치 및 방법에 관한 것이다. 본 발명에 따른 송신 장치는, PDU(Protocol data unit)의 페이로드를 생성하는 제1 생성부와, 상기 생성된 페이로드의 길이에 따라 에러체크코드 길이를 선택하고, 상기 선택된 길이에 따라 에러체크코드를 생성하여 상기 페이로드에 부가하는 제2 생성부를 포함한다. 이와 같은 본 발명은 CRC길이를 적응적으로 조정하기 때문에, CRC 계산량을 줄이면서도 일정 수준 이상의 에러 감지 능력을 유지할 수 있다.
MAC PDU, CRC, 페이로드-
公开(公告)号：KR100901375B1
公开(公告)日：2009-06-05
申请号：KR1020060073247
申请日：2006-08-03
Applicant: 삼성전자주식회사
CPC classification number: H04W74/004 , H04W74/0833 , H04W74/0866
Abstract: 본 발명은 광대역 무선통신 시스템에서 단말의 상향링크 데이터 송신에 관한 것으로, 상기 단말은, 아이들모드(Idel Mode) 상태에서, 상향링크 자원할당 요청 정보를 포함하는 랜덤 억세스(Random Access) 메시지를 생성하는 생성부와, 기지국으로부터 수신되는 자원할당 메시지를 분석하여 할당된 상향링크 자원을 확인하는 처리부와, 상기 할당된 상향링크 자원을 이용하여 데이터를 송신하는 송신부를 포함하여, 아이들모드에 있는 단말이 간단한 상향링크 데이터 송신 시, 노멀모드(Normal Mode) 전환을 위한 많은 절차를 생략함으로써, 단말과 기지국의 오버헤드 및 단말의 전력 소모를 감소시킬 수 있다.
아이들모드(Idle Mode), 상향링크, 자원할당. 단문 메시지 서비스(SMS : Short Message Service)-
公开(公告)号：KR1020080085984A
公开(公告)日：2008-09-25
申请号：KR1020070027500
申请日：2007-03-21
Applicant: 삼성전자주식회사
IPC: H04B7/26
CPC classification number: H04L1/0026 , H04L5/0007 , H04L5/0057
Abstract: An apparatus and a method for allocating feedback channels in a broadband wireless communication system are provided to allocate a limited number of CQI(Channel Quality Information) channels to more terminals by adjusting the CQI feedback cycle of each terminal according to its channel variation speed. A scheduler in a base station comprises a channel variation speed calculator(304), a feedback cycle determiner(306), and a channel allocator(308). The channel variation speed calculator obtains a channel variation speed value, based on the CQI fed back from a terminal. Using the obtained channel variation speed value, the feedback cycle determiner determines the CQI feedback cycle of the terminal. The channel allocator allocates a CQI channel to the terminal according to the determined CQI feedback cycle.
Abstract translation: 提供一种用于在宽带无线通信系统中分配反馈信道的装置和方法，用于通过根据其信道变化速度调整每个终端的CQI反馈周期来向更多终端分配有限数量的CQI（信道质量信息）信道。 基站中的调度器包括信道变化速度计算器（304），反馈周期确定器（306）和信道分配器（308）。 信道变化速度计算部根据从终端反馈的CQI获得信道变更速度值。 使用获得的信道变化速度值，反馈周期确定器确定终端的CQI反馈周期。 信道分配器根据确定的CQI反馈周期向终端分配CQI信道。
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公开(公告)号：KR1020080042527A
公开(公告)日：2008-05-15
申请号：KR1020060111096
申请日：2006-11-10
Applicant: 삼성전자주식회사
IPC: H04B7/26
Abstract: A method and an apparatus for fast handover in a communication system are provided to reduce the handover delay time of an MS in the communication system and reduce the increase of an unnecessary load in the communication system by abnormal handover. A method for fast handover in a communication system comprises the following steps of: allowing a serving BS(Base Station)(403) to transmit an MOB_NBR-ADV(Mobile Neighbor Advertisement) message including expected action time information to an MS(Mobile Station)(401); allowing the MS to scan a reference signal transmitted from neighbor BSs through the MOB_NBR-ADV message; allowing the MS to transmit an MOB_HO-IND(Mobile Handover Indication) message including target BS information to the service BS; allowing the service BS to transmit an HO_confirm(Handover Confirm) message to the target BS; allowing the serving BS to transmit pending data to the MS and exchange MS service information with a neighbor BS1(405); allowing the MS to synchronize a BS change; allowing the neighbor BS1 to perform scheduling; allowing the neighbor BS1 to transmit an UL_MAP(Uplink Map) message including a fast ranging information element to the MS; and allowing the MS to transmit a RNG-REQ(Ranging Request) to the neighbor BS1.
Abstract translation: 提供一种用于在通信系统中快速切换的方法和装置，以减少通信系统中MS的切换延迟时间，并通过异常切换减少通信系统中不必要的负载的增加。 一种用于通信系统中快速切换的方法，包括以下步骤：允许服务BS（基站）（403）向MS（移动台）发送包括预期动作时间信息的MOB_NBR-ADV（移动邻居广播）消息， （401）; 允许MS扫描通过MOB_NBR-ADV消息从相邻BS发送的参考信号; 允许MS向服务BS发送包括目标BS信息的MOB_HO-IND（移动切换指示）消息; 允许服务BS向目标BS发送HO_confirm（切换确认）消息; 允许服务BS将等待数据发送到MS并与邻居BS1（405）交换MS服务信息; 允许MS同步BS更改; 允许邻居BS1执行调度; 允许邻居BS1向MS发送包括快速测距信息元素的UL_MAP（上行链路映射）消息; 并允许MS向邻居BS1发送RNG-REQ（测距请求）。
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Patent Agency Ranking
公开(公告)号：KR1020080038560A
公开(公告)日：2008-05-07
申请号：KR1020060105580
申请日：2006-10-30
Applicant: 삼성전자주식회사
CPC classification number: H04L1/0017 , H04L1/0003 , H04L1/0009 , H04L5/023 , H04L27/2608 , H04W16/28 , H04W72/042 , H04W72/044
Abstract: A method and an apparatus for allocating resources in a multi-channel system are provided to simultaneously and effectively allocate radio resources to a user who is suitable for diversity characteristics and a user who is suitable for a BandAMC channel. Receiving resource allocation requests from user terminals, a base station determines channels to be allocated to the user terminals and divides the user terminals into user terminals to which a BandAMC channel will be allocated and user terminals to which a diversity channel will be allocated(601,603). For a user terminal to which the BandAMC channel will be allocated, the base station selects a frequency band the user terminal prefers(605). The base station allocates the resources of the BandAMC channel within the selected frequency band according to a 2-3 tree scheme(607). In case BandAMC channel resource allocation is completed for every user terminal, the base station gathers radio resources which are not allocated as the BandAMC channel, and creates a virtual resource space(609). The base station allocates the resources of the diversity channel through the virtual resource space for the user terminals to whom the diversity channel will be allocated(611). Finally the base station creates resource allocation information and broadcasts it to the user terminals(613).
Abstract translation: 提供一种用于在多信道系统中分配资源的方法和装置，用于向适合于分集特性的用户和适合于BandAMC信道的用户同时且有效地分配无线电资源。 接收来自用户终端的资源分配请求时，基站确定要分配给用户终端的信道，并将用户终端划分成要分配BandAMC信道的用户终端和分配信道的用户终端（601,603） 。 对于将分配BandAMC信道的用户终端，基站选择用户终端所喜欢的频带（605）。 基站根据2-3树形方案（607）分配所选频带内的BandAMC信道的资源。 在对每个用户终端完成BandAMC信道资源分配的情况下，基站收集未分配为BandAMC信道的无线资源，并创建虚拟资源空间（609）。 基站通过分配信道的用户终端的虚拟资源空间分配分集信道的资源（611）。 最后，基站创建资源分配信息并将其广播给用户终端（613）。
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公开(公告)号：KR1020080032823A
公开(公告)日：2008-04-16
申请号：KR1020060098829
申请日：2006-10-11
Applicant: 삼성전자주식회사
IPC: H04B7/26
CPC classification number: H04W72/042 , H04L5/0007 , H04L5/0037 , H04L5/0087 , H04L5/0092 , H04L5/0096 , H04W76/20 , H04W76/30 , H04W92/10 , H04W28/06
Abstract: A radio resource allocation method in a wireless communication system and a device thereof are provided to adaptively allocate resources by forming virtual resource spaces with resources which are not allocated in the wireless communication system, thereby allocating various fragmented resources to one user at a time, consequently system performance can be improved. A base station checks whether resource allocation alterations for a particular user are demanded(401). If so, the base station checks whether the demanded alterations refer to a resource allocation request or cancellation of already allocated resources(403). In case of resource allocation, the base station confirms size of resources to be allocated to the particular user(417). The base station checks radio resources which are not allocated, and forms virtual resource spaces, then allocates resources corresponding to the confirmed size(419). The base station includes resource allocation information in a map of a corresponding frame to send the information to a terminal(421).
Abstract translation: 提供无线通信系统中的无线资源分配方法及其装置，通过在未被分配给无线通信系统的资源中形成虚拟资源空间来自适应地分配资源，从而一次向一个用户分配各种分散的资源 系统性能可以提高。 基站检查是否要求特定用户的资源分配更改（401）。 如果是，则基站检查所请求的改变是否参考已经分配的资源的资源分配请求或取消（403）。 在资源分配的情况下，基站确认要分配给特定用户的资源的大小（417）。 基站检查未分配的无线电资源，并形成虚拟资源空间，然后分配与确认大小相对应的资源（419）。 基站包括相应帧的映射中的资源分配信息，以将信息发送到终端（421）。
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公开(公告)号：KR1020070120684A
公开(公告)日：2007-12-26
申请号：KR1020060055246
申请日：2006-06-20
Applicant: 삼성전자주식회사
IPC: H04B7/005
CPC classification number: H04L1/0083 , H04L1/0041 , H04L1/1812 , H04W28/06
Abstract: An apparatus and a method for MAC(Media Access Control) layer data communication in a broadband wireless communication system are provided to reduce overhead, caused by PDU(Protocol Data Unit) generation and decomposition, and an unnecessary CRC(Cyclic Redundancy Check) calculation amount by controlling a CRC length according to a payload length(or MAC PDU). A MAC encoder(300) consists of a payload generator(300), a CRC(Cyclic Redundancy Check) generator(3030), and a header generator(302). The payload generator(301) generates a payload of a PDU(Protocol Data Unit). The CRC generator(303) selects an error check code length according to a length of the generated payload, generates an error check code according to the selected length and adds the generated error check code to the payload. A header generator(302) generates a header for the generated payload and adds the generated header to the front of the payload.
Abstract translation: 提供宽带无线通信系统中的MAC（媒体访问控制）层数据通信的装置和方法，以减少由PDU（协议数据单元）生成和分解引起的开销，以及不必要的CRC（循环冗余校验）计算量 通过根据有效载荷长度（或MAC PDU）控制CRC长度。 MAC编码器（300）由有效载荷发生器（300），CRC（循环冗余校验）产生器（3030）和标题发生器（302）组成。 有效载荷发生器（301）产生PDU（协议数据单元）的有效载荷。 CRC发生器（303）根据生成的有效载荷的长度选择错误校验码长度，根据选择的长度生成错误校验码，并将生成的错误校验码加到有效载荷上。 标题生成器（302）生成所生成的有效负载的报头，并将生成的报头添加到有效载荷的前端。
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公开(公告)号：KR1020070065991A
公开(公告)日：2007-06-27
申请号：KR1020050126647
申请日：2005-12-21
Applicant: 삼성전자주식회사
IPC: H04B7/26
CPC classification number: H04W52/346 , H04W52/262 , H04W52/281 , H04W52/42
Abstract: A power allocating apparatus and method of a space division multiple access system are provided to improve system performance by differentially distributing transmission power with respect to each terminal when a base station transmits a signal according to a channel state of each terminal. Terminals to be allocated radio resources at the same time period at the same frequency are determined(210). Transmission power of a base station is divided by the number of terminal to be allocated radio resources(220). A CINR(Carrier-to-Interference-and-Noise Ratio) of each terminal and each corresponding MPR(Modulation order Protection code Rate) value are obtained(230). Extra power of each terminal are added to obtain a total amount of extra power(240). Power required for each terminal to have an MPR of one-step higher(250). It is checked whether there exists a terminal for improving the MPR by checking whether there is a terminal whose power required for having an MPR of the next level is smaller than total extra power of the base station(260). When there is no such terminal, extra power is evenly distributed to each terminal(290).
Abstract translation: 提供一种空分多址系统的功率分配装置和方法，用于当基站根据每个终端的信道状态发送信号时，相对于每个终端差分发送功率来提高系统性能。 确定在相同频率下在相同时间段分配无线电资源的终端（210）。 将基站的发送功率除以被分配无线资源的终端数（220）。 获得每个终端的CINR（载波与干扰噪声比）和每个对应的MPR（调制顺序保护码率）值（230）。 添加每个终端的额外功率以获得额外功率的总量（240）。 每个终端需要MPR高一步（250）的功率。 通过检查是否存在具有下一级的MPR所需的功率小于基站（260）的总额外功率的终端来检查是否存在用于改善MPR的终端。 当没有这样的终端时，额外的功率被均匀地分配给每个终端（290）。
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公开(公告)号：KR1020070058774A
公开(公告)日：2007-06-11
申请号：KR1020050117466
申请日：2005-12-05
Applicant: 삼성전자주식회사
Abstract: An apparatus for allocating radio resources in an adaptive antenna system and a method therefor are provided to estimate reception CINR(Carrier to Interference Noise Ratio) values of each terminal according to space division resource allocation and beam formation, and to allocate radio resources by compensating transmission power of each terminal, thereby preventing changes of a dynamic reception CINR. Physical radio resources are divided into a predetermined number of logical regional resources and a predetermined number of logical space resources for each logical regional resource(301,303). If empty logical resources or unallocated data sets exist, an unallocated logical regional resource having the highest receiving strength and a terminal having the highest priority are selected, and logical space resources necessary for allocating the selected terminal to the selected logical regional resource are calculated(305,307). If the number of the calculated logical space resources is smaller than or equal to empty space resources of the selected logical regional resource, the selected terminal is allocated to the selected logical regional resource, and the allocated terminal is removed from a scheduling set(309,313). If the empty resources or the unallocated data sets do not exist, the logical resource is allocated as a substantial physical wireless resource(315,317).
Abstract translation: 提供了一种用于在自适应天线系统中分配无线电资源的装置及其方法，用于根据空分资源分配和波束形成来估计每个终端的接收CINR（载波干扰噪声比）值，并通过补偿传输来分配无线电资源 每个终端的功率，从而防止动态接收CINR的变化。 物理无线电资源被划分为每个逻辑区域资源的预定数量的逻辑区域资源和预定数量的逻辑空间资源（301,303）。 如果存在空逻辑资源或未分配的数据集，则选择具有最高接收强度的未分配逻辑区域资源和具有最高优先级的终端，并且计算将所选择的终端分配给所选择的逻辑区域资源所需的逻辑空间资源（305,307 ）。 如果所计算的逻辑空间资源的数量小于或等于所选择的逻辑区域资源的空白资源，则将所选择的终端分配给所选择的逻辑区域资源，并且从调度集中删除所分配的终端（309,313） 。 如果空资源或未分配的数据集不存在，则逻辑资源被分配为实质物理无线资源（315,317）。
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