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    • 2. 发明申请
    • METHOD AND ARRANGEMENT IN A WIRELESS COMMUNICATIONS SYSTEM
    • 无线通信系统中的方法和布置
    • WO2008085107A2
    • 2008-07-17
    • PCT/SE2007051070
    • 2007-12-21
    • ERICSSON TELEFON AB L MJOENGREN GEORGEGOERANSSON BO
    • JOENGREN GEORGEGOERANSSON BO
    • H04B7/06
    • H04B7/0456H04B7/0413H04B7/0469H04B7/0617H04B7/10
    • An objective problem of the invention is to provide a mechanism for improving the performance of a radio access network. According to a first aspect of the present invention, the object is achieved by a method in a first node for adapting a multi-antenna transmission to a second node over an effective channel. The first node and the second node are comprised in a wireless communication system. The method comprises the steps of obtaining at least one symbol stream and determining a precoding matrix having a block diagonal structure. The method comprises the further steps of precoding the at least one symbol stream with the determined precoding matrix, and transmitting the at least one precoded symbol stream over the effective channel to the second node.
    • 本发明的客观问题是提供一种改善无线电接入网络性能的机制。 根据本发明的第一方面,该目的通过第一节点中的方法来实现,用于通过有效信道将多天线传输适配到第二节点。 第一节点和第二节点包括在无线通信系统中。 该方法包括以下步骤:获得至少一个符号流并确定具有块对角结构的预编码矩阵。 该方法还包括以下步骤:用所确定的预编码矩阵预编码至少一个符号流,以及将有效信道上的至少一个预编码符号流发送到第二节点。
    • 4. 发明申请
    • MODE SWITCHING BETWEEN SU-MIMO AND MU-MIMO
    • SU-MIMO和MU-MIMO之间的模式切换
    • WO2009002251A3
    • 2009-02-26
    • PCT/SE2008050383
    • 2008-04-03
    • ERICSSON TELEFON AB L MJOENGREN GEORGEGOERANSSON BOWAN LEI
    • JOENGREN GEORGEGOERANSSON BOWAN LEI
    • H04B7/06
    • H04B7/0452H04B7/0469H04B7/0486H04B7/0689H04L5/0048H04W52/36H04W52/54H04W72/042H04W88/06H04W88/10
    • The present invention relates to a method and arrangements in a communication system for Multi User Multiple-Input-Multiple-Output (MU-MIMO) signaling via Multiple-Input-Multiple-Output (MIMO) antennas between a base station and one of a plurality of mobile terminals supporting both Single User and Multi User Multiple- Input-Multiple-Output (SU-MIMO and MU-MIMO) signaling modes. Switching between the modes is supported in the system and the modes have partly shared signaling. SU-MIMO mode signaling which is redundant, i.e. not needed, for MU- MIMO mode signaling is identified. Bits, i.e. data bits, of the identified redundant signaling is re-interpreted or re-defined to comprise signaling information associated with MU-MIMO mode. The signaling information associated with MU-MIMO mode is signaled to the mobile terminal by using the reinterpreted redundant bits.
    • 本发明涉及在基站与多个基站之一中的多输入多输出(MIMO)天线的多用户多输入多输出(MU-MIMO)信令通信系统中的方法和装置 的支持单用户和多用户多输入多输出(SU-MIMO和MU-MIMO)信令模式的移动终端。 系统支持模式之间切换,模式部分共享信令。 识别用于MU-MIMO模式信令的冗余(即不需要)的SU-MIMO模式信令。 识别的冗余信令的位,即数据位被重新解释或重新定义为包括与MU-MIMO模式相关联的信令信息。 通过使用重新解释的冗余比特,将与MU-MIMO模式相关联的信令信息通知移动终端。
    • 5. 发明申请
    • METHODS AND ARRANGEMENTS IN A COMMUNICATION SYSTEM
    • 通信系统中的方法和布置
    • WO2009102251A3
    • 2009-10-15
    • PCT/SE2008051218
    • 2008-10-28
    • ERICSSON TELEFON AB L MJOENGREN GEORGEGOERANSSON BO
    • JOENGREN GEORGEGOERANSSON BO
    • H04B7/04H04B7/06
    • H04B7/0639H04B7/0417H04B7/063H04B7/0632
    • A method and arrangement in a first node (110) for sending feedback data on a feedback channel (121) to a second node (111) is provided. The feedback data is indicative of channel properties of a data channel (120) for sending data from the second node (111) to the first node (110). A wireless MIMO communications system (100) comprises the first and second nodes (110, 111). The first node (110) sends (420), in a time period of the feedback channel (121), feedback data comprising a first rank indicator of the data channel (120). Furthermore, the first node (110) sends additional data (212, 242) being independent of the first rank indicator in the time period. Moreover, a corresponding method and arrangement in a second node (111) for receiving feedback data on a feedback channel is provided.
    • 提供了用于在反馈信道(121)上向第二节点(111)发送反馈数据的第一节点(110)中的方法和装置。 反馈数据指示用于将数据从第二节点(111)发送到第一节点(110)的数据信道(120)的信道属性。 无线MIMO通信系统(100)包括第一和第二节点(110,111)。 第一节点(110)在反馈信道(121)的时间段内发送(420)包括数据信道(120)的第一等级指示符的反馈数据。 此外,第一节点(110)在时间段内发送独立于第一等级指示符的附加数据(212,242)。 此外,提供了用于在反馈信道上接收反馈数据的第二节点(111)中的相应方法和布置。
    • 9. 发明申请
    • METHOD AND ARRANGEMENT IN A TELECOMMUNICATIONS SYSTEM
    • 电信系统中的方法和布置
    • WO2009098578A3
    • 2009-10-29
    • PCT/IB2009000205
    • 2009-02-04
    • ERICSSON TELEFON AB L MHAMMARWALL DAVIDJOENGREN GEORGEASTELY DAVIDLUNDEVALL PER MAGNUS
    • HAMMARWALL DAVIDJOENGREN GEORGEASTELY DAVIDLUNDEVALL PER MAGNUS
    • H04B17/00
    • H04B17/345
    • A receiving unit or a transmitting unit of a wireless network for facilitating noise and interference measurements on an air interface. The receiving unit includes a network interface which obtains information relating to a time-varying layout of a silent resource element (RE) grid. The receiving unit includes an electronic memory having code in communication with the network interface which stores the information. The receiving unit includes a processing unit in communication with the electronic memory that takes a presence of a silent RE grid into account in the reception of a control or a data channel. In the transmitting unit, the processing unit takes the presence of a silent RE grid into account in the transmission of a control or a data channel. A method in the receiving unit or a transmitting unit of a wireless network, for facilitating noise and interference measurements on an air interface. The method includes the steps of obtaining information relating to a time-varying layout of a silent resource element (RE) grid. There is the step of taking a presence of a silent RE grid into account in the reception of a control or a data channel.
    • 无线网络的接收单元或发送单元,用于促进空中接口上的噪声和干扰测量。 接收单元包括获得与静默资源元素(RE)网格的时变布局有关的信息的网络接口。 接收单元包括具有与存储信息的网络接口通信的代码的电子存储器。 接收单元包括与电子存储器通信的处理单元,其在接收控制或数据信道时考虑静音RE网格的存在。 在发送单元中,处理单元在控制或数据信道的传输中考虑到静默RE网格的存在。 无线网络的接收单元或发送单元中的方法,用于促进空中接口上的噪声和干扰测量。 该方法包括以下步骤:获得与无声资源元素(RE)网格的时变布局有关的信息。 在控制或数据通道的接收中考虑存在静音RE网格的步骤。
    • 10. 发明申请
    • METHOD FOR DETECTING TRANSMISSION MODE IN A SYSTEM USING MULTIPLE ANTENNAS
    • 使用多个天线检测系统中传输模式的方法
    • WO2008136750A3
    • 2008-12-31
    • PCT/SE2008050507
    • 2008-05-05
    • ERICSSON TELEFON AB L MJOENGREN GEORGE
    • JOENGREN GEORGE
    • H04L1/00H04B7/06
    • H04B7/0689H04L1/0003H04L1/1812H04L5/0007
    • A user terminal (14), a communication network (10, 14), a computer readable medium and a method for selecting at the user terminal (14) a reception and decoding of a transmission mode used by a base station (10), the user terminal (14) receiving communicated information from the base station (10), which has multiple antennas (12), via plural channels, the plural channels including a primary broadcast channel and at least one control channel. The method includes receiving at the user terminal (14) initiating data from the base station (10) via the primary broadcast channel, detecting from the received initiating data whether a first or a second transmission mode is used by the base station (10) for the primary broadcast channel, the first transmission mode indicating that a first number of antennas are used by the base station (10) and the second transmission mode indicating that a second number, different than the first number, of antennas are used by the base station (10) to communicate with the user terminal (14), and using the detected first or second transmission mode of the primary broadcast channel to decode the at least one control channel.
    • 一种用户终端(14),通信网络(10,14),计算机可读介质和用于在用户终端(14)选择由基站(10)使用的传输模式的接收和解码的方法, 用户终端(14)经由多个信道从具有多个天线(12)的基站(10)接收传送的信息,所述多个信道包括主广播信道和至少一个控制信道。 该方法包括在用户终端(14)经由主广播信道从基站(10)发起数据,从接收到的发起数据中检测基站(10)是否使用第一或第二传输模式,以便 主广播信道,指示基站(10)使用第一数量天线的第一发送模式和指示与第一数量不同的天线的第二数量的第二发送模式被基站使用 (10)与所述用户终端(14)进行通信,并且使用所检测到的所述主广播信道的第一或第二传输模式来解码所述至少一个控制信道。