APPARATUS AND METHOD FOR HANDOVER IN BROADBAND WIRELESS COMMUNICATION SYSTEM FOR SUPPORTING MOBILE RELAY STATION
    21.
    发明申请
    APPARATUS AND METHOD FOR HANDOVER IN BROADBAND WIRELESS COMMUNICATION SYSTEM FOR SUPPORTING MOBILE RELAY STATION 有权
    用于支持移动中继站的宽带无线通信系统中的切换装置和方法

    公开(公告)号:US20110134887A1

    公开(公告)日:2011-06-09

    申请号:US13057099

    申请日:2009-07-28

    IPC分类号: H04W36/00

    摘要: An apparatus and a method for handover in a broadband wireless communication system supporting a Mobile Relay Station (MRS) are provided. The method includes transmitting a Connection ID (CID) of Mobile Stations (MSs), the CIDs pre-allocated by a target BS, to the MSs; sending a resource allocation message comprising uplink resource allocation information for bandwidth request of the MSs, to the MSs; receiving a bandwidth request message which comprises security authentication information of each MS, from the MSs using an uplink resource allocated through the uplink resource allocation information; and aggregating bandwidth request messages of the MSs and sending a ranging request message comprising the security authentication information and bandwidth request information of the MSs to the target BS. Thus, the handover delay time, which is inevitable for the bandwidth request in the conventional connection set-up procedure, can be reduced, and the handover with the reliability guaranteed can be achieved by allowing the security related processing in the network re-entry procedure.

    摘要翻译: 提供了一种在支持移动中继站(MRS)的宽带无线通信系统中切换的装置和方法。 该方法包括将移动站(MS)的连接ID(CID)(由目标BS预先分配的CID)发送给MS; 向MS发送包括用于MS的带宽请求的上行链路资源分配信息的资源分配消息; 从使用通过上行链路资源分配信息分配的上行链路资源的MS接收包括每个MS的安全认证信息的带宽请求消息; 并且聚合MS的带宽请求消息,并向目标BS发送包括MS的安全认证信息和带宽请求信息的测距请求消息。 因此,可以减少在常规连接建立过程中对于带宽请求是不可避免的切换延迟时间,并且可以通过允许网络重入步骤中的安全相关处理来实现具有可靠性保证的切换 。

    Apparatus and method for transmitting system information block in a broadband wireless communication system
    22.
    发明申请
    Apparatus and method for transmitting system information block in a broadband wireless communication system 失效
    在宽带无线通信系统中发送系统信息块的装置和方法

    公开(公告)号:US20100260156A1

    公开(公告)日:2010-10-14

    申请号:US12798824

    申请日:2010-04-12

    IPC分类号: H04W56/00

    摘要: An operation method of the femto BS includes configuring a subframe set including at least two types of subframes among subframes having predefined different structures, and, if a duration of a subframe carrying the subframe set arrives, transmitting one of the subframes included in the subframe set according to predefined order. The subframes having the predefined different structures include a first type subframe including a synchronization signal and a Master Information Block (MIB), a second type subframe including the synchronization signal, a third type subframe including the synchronization signal and system information, a fourth type subframe including the synchronization signal, the MIB, and the system information, and a fifth type subframe including the system information.

    摘要翻译: 毫微微BS的操作方法包括在具有预定义的不同结构的子帧中配置包括至少两种类型的子帧的子帧组,并且如果携带子帧组的子帧的持续时间到达,则发送子帧组中包括的子帧之一 根据预定义的顺序。 具有预定义的不同结构的子帧包括包括同步信号和主信息块(MIB)的第一类型子帧,包括同步信号的第二类型子帧,包括同步信号和系统信息的第三类型子帧,第四类型子帧 包括同步信号,MIB和系统信息,以及包括系统信息的第五类型子帧。

    Group handover method and apparatus in broadband wireless communication system that supports mobile relay station
    23.
    发明授权
    Group handover method and apparatus in broadband wireless communication system that supports mobile relay station 有权
    支持移动中继站的宽带无线通信系统中的组切换方法和装置

    公开(公告)号:US08706119B2

    公开(公告)日:2014-04-22

    申请号:US13254982

    申请日:2010-03-05

    IPC分类号: H04W36/00

    摘要: Group handover method and apparatus in a broadband wireless communication system which supports a mobile relay station are provided. A method of a serving base station for group handover of the mobile relay station includes when receiving a measurement report message from a relay station, determining whether the relay station is a mobile relay station of a simple type which forwards a signal; collecting handover related information of the mobile relay station and mobile terminals belonging to the mobile relay station, from pre-stored information; requesting handover of the mobile relay station and the mobile terminals by transmitting the collected handover related information to a target base station; and receiving a message indicating whether the handover of the mobile relay station and the mobile terminals is approved, from the target base station.

    摘要翻译: 提供了一种支持移动中继站的宽带无线通信系统中的组切换方法和装置。 一种用于移动中继站的组切换的服务基站的方法包括:当从中继站接收到测量报告消息时,确定中继站是否是转发信号的简单类型的移动中继站; 从预先存储的信息中收集移动中继站和属于移动中继站的移动终端的切换相关信息; 通过将所收集的切换相关信息发送到目标基站来请求移动中继站和移动终端的切换; 并且从目标基站接收指示移动中继站和移动终端的切换是否被批准的消息。

    Apparatus and method for transmitting an uplink pilot using a scanning interval in a mobile communication system
    25.
    发明授权
    Apparatus and method for transmitting an uplink pilot using a scanning interval in a mobile communication system 有权
    用于在移动通信系统中使用扫描间隔发送上行链路导频的设备和方法

    公开(公告)号:US08504025B2

    公开(公告)日:2013-08-06

    申请号:US12048513

    申请日:2008-03-14

    IPC分类号: H04B7/00 H04W4/00 H04J3/06

    CPC分类号: H04W36/0077 H04W48/16

    摘要: An apparatus and method for transmitting an UpLink (UL) pilot using a scanning interval in a mobile communication system are provided. The method includes receiving a scanning response message including information on a UL pilot channel allocation mode from a serving Base Station (BS), measuring each DownLink (DL) channel state using DL signals of one or more neighboring BSs and transmitting a UL pilot to each of the one or more neighboring BSs in the UL pilot channel allocation mode, during a scanning duration. Accordingly, both UL and DL Quality of Service (QoS) may be considered during a handover operation.

    摘要翻译: 提供了一种用于在移动通信系统中使用扫描间隔发送UpLink(UL)导频的装置和方法。 该方法包括从服务基站(BS)接收包括关于UL导频信道分配模式的信息的扫描响应消息,使用一个或多个相邻BS的DL信号测量每个下行链路(DL)信道状态,并将UL导频发送到每个 在UL导频信道分配模式中的一个或多个相邻BS的扫描期间。 因此,在切换操作期间可以考虑UL和DL服务质量(QoS)两者。

    Method for providing multicast service in a wireless communication system and system thereof
    26.
    发明授权
    Method for providing multicast service in a wireless communication system and system thereof 有权
    一种在无线通信系统中提供组播业务的方法及其系统

    公开(公告)号:US08327210B2

    公开(公告)日:2012-12-04

    申请号:US12291312

    申请日:2008-11-07

    IPC分类号: G06F11/00

    CPC分类号: H04L1/1887 H04L2001/0093

    摘要: A method is provided for providing a multicast service by a base station (BS) in a wireless communication system. The method includes transmitting an Nth data traffic corresponding to a multicast service to a plurality of mobile stations (MSs) through a multicast channel in an Fth frame; determining whether a Negative Acknowledgement (NACK) message indicating a failure to receive the Nth data traffic is received from at least one MS in an (F+1)th frame; and when the NACK message is received, retransmitting the Nth data traffic to an MS, which transmitted the NACK message, through an other channel different from the multicast channel in an (F+2)th frame.

    摘要翻译: 提供了一种用于在无线通信系统中由基站(BS)提供多播服务的方法。 该方法包括通过第F帧中的多播信道向多个移动台(MS)发送对应于多播业务的第N个数据业务; 确定在(F + 1)帧中是否从至少一个MS接收到指示不接收第N个数据业务的否定确认(NACK)消息; 并且当接收到NACK消息时,通过与第(F + 2)帧中的多播信道不同的其他信道向发送NACK消息的MS重传第N个数据业务。

    Apparatus and method for beamforming with limited feedforward channel in multiple input multiple output wireless communication system
    28.
    发明授权
    Apparatus and method for beamforming with limited feedforward channel in multiple input multiple output wireless communication system 有权
    用于多输入多输出无线通信系统中具有有限前馈信道的波束成形的装置和方法

    公开(公告)号:US08284863B2

    公开(公告)日:2012-10-09

    申请号:US12156001

    申请日:2008-05-29

    IPC分类号: H04L27/00 H04B7/06

    摘要: An apparatus and method are provided for beamforming in a MIMO wireless communication system. A base station includes a first calculator that repeatedly calculates downlink beamforming vectors of the user terminals to calculate the optimal beamforming vectors for the user terminals, a quantizer that quantizes the downlink beamforming vectors in order to transmit information of the downlink beamforming vectors, a control channel transmitter that feeds forward information of the quantized downlink beamforming vectors to the user terminals, a second calculator that calculates the final downlink beamforming vectors of the user terminals, and a beamforming transmitter that sums the beamformed TX signals of the user terminals and transmits the summed TX signals through a plurality of TX antennas.

    摘要翻译: 提供了一种用于MIMO无线通信系统中的波束成形的装置和方法。 基站包括:第一计算器,其重复地计算用户终端的下行链路波束成形向量,以计算用户终端的最佳波束成形向量;量化器,用于量化下行链路波束形成向量,以便发送下行链路波束形成向量的信息;控制信道 发送器,其将量化的下行链路波束成形向量的信息馈送给用户终端;计算用户终端的最终下行链路波束成形向量的第二计算器;以及与用户终端的波束形成的TX信号相加的波束成形发射机,并发送求和的TX 信号通过多个TX天线。

    Precoder and precoding method in a multi-antenna system
    30.
    发明授权
    Precoder and precoding method in a multi-antenna system 有权
    多天线系统中的预编码和预编码方法

    公开(公告)号:US08204142B2

    公开(公告)日:2012-06-19

    申请号:US12021488

    申请日:2008-01-29

    IPC分类号: H04B7/02

    摘要: A precoder and a precoding method in a multiuser multi-antenna system are provided. The precoder includes a channel checker for determining a DownLink (DL) channel condition of terminals in a service coverage area, a pre-compensator for pre-compensating, for channel distortion, signals to be sent to the terminals when a nonlinear algorithm is selected based on the channel condition of the terminals, and an interference remover for canceling interference in a channel by multiplying the pre-compensated signals by inverse channels of the terminals, and for canceling interference between the terminals. Accordingly, the pre-equalization can be carried out without global channel state information, and an increase of the transmit power can be prevented in the permutation.

    摘要翻译: 提供了一种多用户多天线系统中的预编码器和预编码方法。 预编码器包括用于确定服务覆盖区域中的终端的下行链路(DL)信道状态的信道检查器,用于预补偿的预补偿器,用于信道失真,当基于非线性算法被选择时要发送到终端的信号 在终端的信道条件下,以及干扰去除器,用于通过将预补偿信号乘以终端的反向信道来消除信道中的干扰,并用于消除终端之间的干扰。 因此,可以在没有全局信道状态信息的情况下执行预均衡,并且可以在排列中防止发送功率的增加。