Multiple antenna communication system using spatial pre-coding

    公开(公告)号:EP1780925B1

    公开(公告)日:2018-10-10

    申请号:EP06022705.5

    申请日:2006-10-31

    IPC分类号: H04L1/06 H04B7/08

    摘要: An apparatus for transmitting data in a base station of a wireless communication system that transmits data depending on channel status information fed back from terminals and uses a plurality of antennas. Based on the channel status information, a scheduler determines a terminal to which the base station will transmit data, determines antennas via which the base station will transmit data among the plurality of antennas, and determines a space pre-coding method. A multiplexer multiplexes transmission data into a plurality of data streams according to the number of the determined antennas. A modulation and coding unit performs modulation and coding on each of the data streams. A pre-coding controller outputs a matrix select signal for selecting one of a plurality of space pre-coding matrixes according to the space pre-coding method. A space pre-coder spatial-codes each of the coded streams with the matrix selected based on the matrix select signal. An OFDM modulator performs OFDM modulation on each of the spatial-coded streams. An RF unit transmits each of the OFDM-modulated streams via an associated antenna.

    Apparatus and method for feeding back channel quality information and scheduling apparatus and method using the same in a wireless communication system
    3.
    发明授权
    Apparatus and method for feeding back channel quality information and scheduling apparatus and method using the same in a wireless communication system 有权
    装置和方法使用相同的无线通信系统的信道质量和调度的装置和方法的反馈

    公开(公告)号:EP1760961B1

    公开(公告)日:2017-04-12

    申请号:EP06018019.7

    申请日:2006-08-29

    IPC分类号: H04W72/12 H04L1/00 H04W24/10

    摘要: An apparatus and method are provided for feeding back channel quality information and performing scheduling using the fed-back channel quality information in a wireless communication system based on Orthogonal Frequency Division Multiple Access (OFDMA) In the OFDMA wireless communication system, forward performance degradation due to a decrease in an amount of reverse channel quality information is reduced, and also an increase in the reverse load due to channel quality information feedback is suppressed. A base station controls power of a physical channel using information fed back from a mobile station. In a method for feeding back channel quality information from the mobile station, sub-band-by-sub-band channel quality information is measured and channel-by-channel quality information of a number of channels is transmitted in order of sub-bands of better channel quality information. Average channel quality information for a total band is measured and transmitted.

    摘要翻译: 提供了用于反馈信道质量信息,并且使用基于正交频分多址(OFDMA)在OFDMA无线通信系统中,由于正向性能降低在无线通信系统中的反馈的信道质量信息执行调度的设备和方法 在反向信道质量信息中的量的减少变小,并因此以相反的负荷增加,由于信道质量信息反馈被抑制。 基站控制从移动站反馈的物理信道使用信息的功率。 在用于从移动台反馈信道质量信息的方法,子带逐个子频带信道质量信息被测量,并且多个信道的信道逐信道质量信息是反式mitted在子频带的顺序 更好的信道质量信息。 用于总频带的平均信道质量信息被测量和反式mitted。

    Apparatus and method for allocating resources in an FDMA wireless communication system
    6.
    发明公开
    Apparatus and method for allocating resources in an FDMA wireless communication system 审中-公开
    电子邮件系统中的Vorrichtung und Verfahren zur Ressourcenzuweisung

    公开(公告)号:EP1809064A2

    公开(公告)日:2007-07-18

    申请号:EP07000792.7

    申请日:2007-01-16

    IPC分类号: H04Q7/38

    CPC分类号: H04W72/06

    摘要: A method for resource allocation in an FDMA communication system is disclosed in which the resource allocation method includes distinguishing a dynamic resource allocation service, an amount of resource allocation for which changes every transmission time, and a static resource allocation service, an amount of resource allocation for which is fixed every transmission time; determining a start point of the static resource allocation service in a one-dimensionally arranged logical resource, and sequentially allocating resources for each static resource allocation service; and allocating resources left after the static resource allocation, to the dynamic resource allocation service in a reverse direction as that of the static resource allocation service, starting from a last resource located in the opposite side of static resources for the static resource allocation service in the one-dimensionally arranged logical resource.

    摘要翻译: 公开了一种FDMA通信系统中的资源分配方法,其中资源分配方法包括区分动态资源分配服务,每个传输时间改变的资源分配量和静态资源分配服务,资源分配量 每个传输时间都是固定的; 确定一维排列的逻辑资源中的静态资源分配服务的起始点,并且为每个静态资源分配服务顺序分配资源; 以及将所述静态资源分配之后留下的资源分配给与所述静态资源分配服务相反方向的所述动态资源分配服务,所述资源从位于所述静态资源分配服务的静态资源的相反侧的最后资源开始 一维排列的逻辑资源。

    Method and apparatus for controlling transmission power of control information in a mobile communication system
    7.
    发明授权
    Method and apparatus for controlling transmission power of control information in a mobile communication system 有权
    用于在移动通信系统的控制信息的发射功率控制方法和装置

    公开(公告)号:EP1324508B1

    公开(公告)日:2005-06-22

    申请号:EP02026107.9

    申请日:2002-11-22

    IPC分类号: H04B7/005 H04Q7/38

    CPC分类号: H04W52/325

    摘要: A base station apparatus for controlling power of individual control information transmitted to mobile stations. A first mobile station receives its own control information, and a second mobile station receives its own control information and control information for the first mobile station. A receiver receives information on forward channel conditions of the mobile stations for a previous time period. A channel transmitter transmits individual control information to the first mobile station and the second mobile station for a preset time period. A required transmission power calculator calculates power levels required for transmitting control information to each of the mobile stations for the preset time period taking into consideration the forward channel condition of each of the mobile stations and transmission power used for transmitting control information to each of the mobile stations for the previous time period. A transmission power controller transmits control information for the first mobile station at a higher power level out of the calculated required power levels and transmits control information for the second mobile station at a corresponding power level out of the calculated required power levels.

    Method for providing state information of a mobile station in a mobile communication system
    8.
    发明公开
    Method for providing state information of a mobile station in a mobile communication system 有权
    移动通信系统中的移动通信和移动通信

    公开(公告)号:EP1513363A1

    公开(公告)日:2005-03-09

    申请号:EP04020868.8

    申请日:2004-09-02

    IPC分类号: H04Q7/38

    摘要: A method of providing state information of a mobile station in a mobile communication system which provides a data service between the mobile station and a base station and transmits information on a maximum data rate available for the mobile station and information on the amount of data stored in a buffer of the mobile station in a reverse direction, such that the base station determines a reverse data rate of the mobile station based on channel state information transmitted in the reverse direction. The mobile station determines information on the amount of data stored in its buffer based on information transmitted from the base station,. The mobile station quantizes the determined information on the amount of data stored in the buffer, and transmits the quantized information to the base station.

    摘要翻译: 一种在移动通信系统中提供移动站的状态信息的方法,该移动通信系统提供移动台和基站之间的数据业务,并且发送关于可用于该移动站的最大数据速率的信息以及关于存储在该移动站中的数据量的信息 移动台的反向缓冲器,使得基站基于在相反方向上发送的信道状态信息来确定移动台的反向数据速率。 移动台基于从基站发送的信息,确定存储在其缓冲器中的数据量的信息。 移动台对存储在缓冲器中的数据量的确定信息进行量化,并将量化的信息发送给基站。

    Reporting absolute and relative downlink channel quality information in a mobile communication system
    9.
    发明公开
    Reporting absolute and relative downlink channel quality information in a mobile communication system 有权
    在einem mobilen社区系统中的Berichten von absoluter und relativerAbwärtskanal-Qualitätsinformation

    公开(公告)号:EP1289167A1

    公开(公告)日:2003-03-05

    申请号:EP02019487.4

    申请日:2002-08-30

    IPC分类号: H04B7/005

    摘要: An apparatus and method for transmitting and receiving forward channel quality information between a base station and a mobile station in a CDMA mobile communication system supporting multimedia service including voice and data services. The mobile station transmits an absolute value symbol in at least one time slot selected from a plurality of time slots, and a relative value symbol in one of the remaining time slots. The absolute value symbol represents the signal strength of the forward channel in the at least one time slot corresponding to the selected time slot, and the relative value symbol represents a change in the signal strength of the forward channel between the at least one time slot corresponding to the one remaining time slot and the signal strength of the forward channel in a previous time slot.

    摘要翻译: 一种用于在支持包括语音和数据业务的多媒体业务的CDMA移动通信系统中,在基站与移动站之间发送和接收前向信道质量信息的装置和方法。 移动台在从多个时隙中选择的至少一个时隙中发送绝对值符号,并在剩余时隙之一中发送相对值符号。 绝对值符号表示与所选择的时隙相对应的至少一个时隙中的前向信道的信号强度,相对值符号表示在对应的至少一个时隙之间的正向信道的信号强度的变化 到前一个时隙中的一个剩余时隙和前向信道的信号强度。