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公开(公告)号：KR1020080018148A
公开(公告)日：2008-02-27
申请号：KR1020070084865
申请日：2007-08-23
Applicant: 한국전자통신연구원
CPC classification number: H04L1/1816 , H04L1/0025 , H04L1/1887 , H04L2001/0093 , H04B7/2612
Abstract: MBMS(Multimedia Broadcast Multicast Service) data transmitting and receiving methods in a packet based cellular system are provided to improve error correction efficiency of received data by an HARQ(Hybrid Automatic Repeat reQuest) scheme when transmitting MBMS data to a plurality of terminals in a point to multipoint scheme. An MBMS data transmitting method includes the steps of: transmitting schedule information of transmitting data, HARQ information, and a service group identifier for an MBMS to a plurality of terminals through an MBMS's exclusive control channel(301); transmitting exclusive feedback channel information of the terminals and unique scrambling codes of the terminals to the terminals(302); transmitting MBMS data packets to the terminals; transmitting wireless resource information of data re-transmitted by a down-link control signal to the terminals when an NACK(Negative Acknowledgement) is received from the at least one terminal through an exclusive feedback channel(304); and transmitting the re-transmitted data to the terminals(305).
Abstract translation: 提供了一种基于分组的蜂窝系统中的MBMS（Multimedia Broadcast Multicast Service，多媒体广播多播服务）数据发送和接收方法，以便在一点上向多个终端发送MBMS数据时，通过HARQ（Hybrid Automatic Repeat reQuest）方式提高接收数据的纠错效率 到多点方案。 MBMS数据发送方法包括以下步骤：通过MBMS专用控制信道（301）向多个终端发送MBMS的发送数据，HARQ信息和MBMS的业务组标识符的调度信息; 将终端的独家反馈信道信息和终端的唯一扰码发送到终端（302）; 向所述终端发送MBMS数据分组; 当通过专用反馈信道从所述至少一个终端接收到NACK（否定确认）时，将通过下行链路控制信号重新发送的数据的无线资源信息发射到终端; 以及将重新发送的数据发送到终端（305）。
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公开(公告)号：KR1020080018147A
公开(公告)日：2008-02-27
申请号：KR1020070084864
申请日：2007-08-23
CPC classification number: H04W74/008 , H04W36/08 , H04W72/14 , H04W74/0833
Abstract: A method for transmitting a response message of random access in a cellular system and a random access method using the same are provided to assign and manage a mobile station identifier by using minimum random access delay and minimum radio resources. A method for transmitting a response message of random access comprises the followings steps of: receiving a preamble from a mobile station(S301); confirming whether the mobile station includes a mobile station identifier, assigned by a base station, by using the receiving preamble(S303); if not so, allocating first scheduling information to a control information block, allocating a first response message including a mobile station identifier assigned by the base station to a downlink shared channel, and transmitting the control information block and the downlink shared channel to the mobile station(S304); and if so, allocating second scheduling information to the control information block, allocating a second response message including no mobile station identifier to the downlink shared channel, and transmitting the control information block and the downlink shared channel to the mobile station(S305).
Abstract translation: 提供一种用于在蜂窝系统中发送随机接入的响应消息的方法和使用其的随机接入方法，以通过使用最小随机接入延迟和最小无线电资源来分配和管理移动台标识符。 用于发送随机接入的响应消息的方法包括以下步骤：从移动台接收前导码（S301）; 通过使用接收前导码来确认移动站是否包括由基站分配的移动站标识符（S303）; 如果不是这样，则将第一调度信息分配给控制信息块，将包括由基站分配的移动台标识符的第一响应消息分配给下行链路共享信道，并将控制信息块和下行链路共享信道发送到移动站 （S304）; 如果是，则向所述控制信息块分配第二调度信息，向所述下行链路共享信道分配不包括移动台标识符的第二响应消息，并向所述移动台发送所述控制信息块和所述下行链路共享信道（S305）。
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公开(公告)号：KR1020070107614A
公开(公告)日：2007-11-07
申请号：KR1020070042760
申请日：2007-05-02
CPC classification number: H04L27/2601 , H04L5/0007 , H04L5/0037 , H04L5/0053
Abstract: A method for transmitting/receiving downlink scheduling information in an OFDMA(Orthogonal Frequency Division Multiple Access) system is provided to reduce the quantity of scheduling information by using a resource block having a minimum resource block index, a maximum resource block index, or a channel with a high quality. A method for transmitting/receiving downlink scheduling information in an OFDMA system includes the steps for allocating at least one of resource blocks comprising downlink resources of the OFDMA system, to each terminal(S200); selecting the resource block for each terminal on the basis of the size of indexes of each allocated resource block(S210); generating scheduling information including terminal resource allocation information and terminal discrimination information, for each terminal(S220); and transmitting the scheduling information of the terminal to each terminal by using the selected resource block(S234).
Abstract translation: 提供了一种用于在OFDMA（正交频分多址）系统中发送/接收下行链路调度信息的方法，通过使用具有最小资源块索引，最大资源块索引或信道的资源块来减少调度信息的数量 具有高品质。 在OFDMA系统中发送/接收下行链路调度信息的方法包括：向每个终端分配包括OFDMA系统的下行资源的资源块中的至少一个的步骤（S200）。 基于每个分配的资源块的索引的大小来选择每个终端的资源块（S210）; 为每个终端产生包括终端资源分配信息和终端识别信息的调度信息（S220）; 以及通过使用所选择的资源块将终端的调度信息发送给每个终端（S234）。
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公开(公告)号：KR1020070105858A
公开(公告)日：2007-10-31
申请号：KR1020070038849
申请日：2007-04-20
Applicant: 한국전자통신연구원
IPC: H04B7/26
CPC classification number: H04W68/025 , H04L5/0053 , H04W68/02 , H04W72/042 , H04B7/2612
Abstract: A method for transmitting paging information in a mobile communication system is provided to improve the utilization of limited radio resources by administrating the setting and mapping of a physical channel and a transport channel variably and flexibly. A paging channel(PCH) is formed in a transport channel corresponding to the occurrence of paging information. A paging indication channel(PICH) is set according to the paging information, and the PICH is added to radio resources of a physical layer(S140). The PCH is allocated to radio resources of the physical layer with a fixed position and a fixed size(S150). Scheduling information is allocated to a control channel of the physical layer. The scheduling information includes a scheduling identifier and radio resource allocation information. The scheduling identifier is used to distinguish between a specific terminal and a terminal group between a base station scheduler and a terminal.
Abstract translation: 提供了一种用于在移动通信系统中发送寻呼信息的方法，通过可变地和灵活地管理物理信道和传输信道的设置和映射来提高有限无线资源的利用。 在对应于寻呼信息的出现的传输信道中形成寻呼信道（PCH）。 根据寻呼信息设置寻呼指示信道（PICH），并将PICH添加到物理层的无线资源（S140）。 PCH以固定位置和固定大小分配给物理层的无线电资源（S150）。 调度信息被分配给物理层的控制信道。 调度信息包括调度标识符和无线资源分配信息。 调度标识符用于区分基站调度器和终端之间的特定终端和终端组。
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公开(公告)号：KR1020070024445A
公开(公告)日：2007-03-02
申请号：KR1020060129239
申请日：2006-12-18
Applicant: 한국전자통신연구원 , 주식회사 케이티 , 에스케이텔레콤 주식회사
IPC: H04B1/40
CPC classification number: H04B1/1615 , H04W52/0216 , H04W76/28 , Y02D70/1242 , Y02D70/24 , Y02D70/40
Abstract: An apparatus and a method for controlling a sleep mode of a cellular system are provided to determine a sleep mode operation according to a type of a packet service and capability of a terminal. A DRX(Discontinuous Reception) period is set according to at least one of QoS(Quality of Service) of a packet service provided to a terminal and capability of the terminal. The terminal in an active state transits to an idle state. Whenever the DRX period lapses in a sleep mode, the terminal performs a paging channel monitoring period.
Abstract translation: 提供了一种用于控制蜂窝系统的睡眠模式的装置和方法，以根据分组业务的类型和终端的能力来确定睡眠模式操作。 根据提供给终端的分组服务的QoS（服务质量）和终端的能力中的至少一个来设置DRX（不连续接收）时段。 处于活动状态的终端转入空闲状态。 无论何时DRX阶段在休眠模式中经过，终端执行寻呼信道监视周期。
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Patent Agency Ranking
公开(公告)号：KR1020070024302A
公开(公告)日：2007-03-02
申请号：KR1020050112766
申请日：2005-11-24
Applicant: 한국전자통신연구원
IPC: H04B1/40
CPC classification number: H04B1/1615 , H04W52/0216 , H04W76/28 , Y02D70/1242 , Y02D70/24 , Y02D70/40
Abstract: An apparatus and a method for controlling a sleep mode of a cellular system are provided to minimize a paging delay and reduce power consumption by operating a sleep mode operation according to a type and QoS(Quality of Service) of a packet service and capability of a terminal. The first parameter setting unit(410) sets a sleep mode parameter according to each QoS type of a packet service or capability of a terminal, forms system information to the set sleep mode parameter, and broadcasts it to the entire cell through a broadcast channel. A state controller(420) determines packet data stored in a transmission buffer of a base station and that of a terminal, and controls a state of the terminal according to a packet service state between a wireless network sub-system and the terminal. The second parameter setting unit(430) sets a sleep mode parameter for a sleep mode operation and informs the terminal accordingly when the state controller(420) controls the terminal to transition to an idle state.
Abstract translation: 提供一种用于控制蜂窝系统的睡眠模式的装置和方法，以通过根据分组业务的类型和服务质量（QoS）和业务能力来操作睡眠模式操作来最小化寻呼延迟并降低功耗 终奌站。 第一参数设置单元（410）根据分组业务的每个QoS类型或终端的能力设置睡眠模式参数，将系统信息形成为设置的睡眠模式参数，并通过广播信道将其广播到整个小区。 状态控制器（420）确定存储在基站和终端的发送缓冲器中的分组数据，并且根据无线网络子系统和终端之间的分组服务状态来控制终端的状态。 第二参数设定单元430设定睡眠模式操作的休眠模式参数，并且当状态控制器420控制终端转换到空闲状态时，相应地通知终端。
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公开(公告)号：KR1020060131671A
公开(公告)日：2006-12-20
申请号：KR1020060053832
申请日：2006-06-15
Applicant: 한국전자통신연구원
CPC classification number: H04W28/16 , H04W80/00 , H04W84/042 , H04W80/02 , H04W80/04
Abstract: A wireless communication system having a protocol structure for improving latency of a cellular system is provided to carry out partition of data units according to AMC(Adaptive Modulation and Coding) options, so that overhead of packet data is reduced, consequently radio resources can be effectively used. A network layer(430) receives user data from an upper layer. A data link layer(420) determines a data transfer mode based on QoS(Quality of Service) of the user data, and partitions the user data into a lot of packet data according to the determined data transfer mode. A physical layer(410) transmits the packet data to a wireless channel. A control service access point is configured to deliver control information between the data link layer(420) and the physical layer(410).
Abstract translation: 提供具有用于提高蜂窝系统的等待时间的协议结构的无线通信系统，以根据AMC（自适应调制和编码）选项进行数据单元划分，从而减少分组数据的开销，从而可以有效地实现无线电资源 用过的。 网络层（430）从上层接收用户数据。 数据链路层（420）基于用户数据的QoS（服务质量）来确定数据传输模式，并根据确定的数据传输模式将用户数据划分成许多分组数据。 物理层（410）将分组数据发送到无线信道。 控制服务接入点被配置为在数据链路层（420）和物理层（410）之间传送控制信息。
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公开(公告)号：KR100657507B1
公开(公告)日：2006-12-13
申请号：KR1020040083185
申请日：2004-10-18
Applicant: 한국전자통신연구원 , 주식회사 케이티 , 에스케이브로드밴드주식회사 , 삼성전자주식회사 , 주식회사 케이티프리텔 , 에스케이텔레콤 주식회사
IPC: H04B7/26
CPC classification number: H04W52/0216 , H04W52/0219 , Y02D70/142 , Y02D70/146
Abstract: 본 발명은 이동통신 또는 무선 인터넷 시스템에서 단말의 이동성을 제공하는데 있어서 중요한 요소 중의 하나인 단말의 전력소모를 줄이기 위한 수면모드를 적용하는 전력절약모드 제어 방법 및 장치에 관한 것이다.
본 발명에 따르면, 수면모드에 진입하는 단말을 그룹화하며, 각 그룹에 속하는 단말의 수가 고르게 분산되는 방법을 제공할 수 있고, 또한, 각 그룹별로 단말의 청취기간이 서로 중첩되지 않도록 하는 방법을 제공할 수 있다.
또한, 본 발명에 따르면, 수면모드에 있는 단말에 대한 트래픽의 존재 유무에 대한 공지가 각 그룹별로 독립적으로 적용될 수 있는 방법을 제공할 수 있고, 또한, 수면모드에 있는 단말에 대한 트래픽의 공지 시에 시그널링 메시지들의 오버헤드를 최소화하기 위한 방법을 제공할 수 있다.
수면모드, 무선 인터넷, 전력절약모드, IEEE 802.16e, HIPERLAN-
公开(公告)号：KR100600673B1
公开(公告)日：2006-07-18
申请号：KR1020040082661
申请日：2004-10-15
Applicant: 한국전자통신연구원 , 주식회사 케이티 , 에스케이브로드밴드주식회사 , 삼성전자주식회사 , 주식회사 케이티프리텔 , 에스케이텔레콤 주식회사
IPC: H04B17/00
CPC classification number: H04L1/0026 , H04L1/0028
Abstract: 본 발명은 이동통신 시스템에서의 채널품질정보 요청 및 보고 방법, 그리고 그 장치에 관한 것이다.
본 발명에서는 기지국이 상향링크 무선자원에 상기 채널품질정보의 보고를 위한 품질보고채널을 할당하고, 이러한 할당 정보를 단말기들로 전송한 다음, 채널품질정보 요청메시지를 생성하여 상기 단말기들에게 채널품질정보를 요청한다. 이에 따라 채널품질정보 요청메시지를 수신한 단말기들이 상기 기지국과의 통신을 위한 무선 채널 상태를 측정하여 채널품질정보를 생성하고, 상기 채널품질정보를 포함하는 채널품질정보 응답메시지를 생성하여 상기 할당 정보에 지정되어 있는 품질보고채널을 통하여 기지국으로 전송한다.
이러한 본 발명에 따르면 빠르게 변화하는 이동 무선 채널의 품질 정보를 적은 오버헤드로서 신속하고 신뢰성 있게 전송할 수 있다.
무선 휴대 인터넷, 무선자원, 채널품질정보-
公开(公告)号：KR1020050071339A
公开(公告)日：2005-07-07
申请号：KR1020040098526
申请日：2004-11-29
Applicant: 한국전자통신연구원 , 주식회사 케이티 , 에스케이브로드밴드주식회사 , 삼성전자주식회사 , 주식회사 케이티프리텔 , 에스케이텔레콤 주식회사
CPC classification number: H04W72/085 , H04L1/0026 , H04W72/0406 , H04W76/20 , H04L1/0015
Abstract: The traffic indication and channel adaptation apparatus for a subscriber station in a sleep mode according to the present invention includes: a channel resource allocator for generating resource allocation information allocating an uplink channel resource to the subscriber station; a traffic indication and channel adaptation controller for generating a traffic indication message transmitted with the resource allocation information to the subscriber station, and providing a downlink data having a transmission level determined by applying an AMC level according to a CQI report message transmitted from the subscriber station; a transmitter for transmitting the uplink resource allocation information, the traffic indication message, and the downlink data to the subscriber station; and a receiver from receiving a CQI codeword or a CQI report message.
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