公开(公告)号：EP2340618A1

公开(公告)日：2011-07-06

申请号：EP08875237.3

申请日：2008-10-27

申请人： Nokia Siemens Networks OY ,  Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： FORCK, Andreas ,  HAUSTEIN, Thomas ,  JUNGNICKEL, Volker ,  SCHELLMANN, Malte ,  SCHULZ, Egon ,  THIELE, Lars ,  WIRTH, Thomas ,  ZIRWAS, Wolfgang

IPC分类号： H04B7/02 ,  H04B7/06

CPC分类号： H04B7/022 ,  H04B7/026 ,  H04B7/0617

摘要： Method and Apparatus thereof for coordinating a joint transmission between a plurality of cooperative access nodes (BSlO, BS20) serving a plurality of user terminals in a mobile communications system, comprising the steps of : - receiving channel information by said access nodes from user terminals that are being served by said access nodes; exchanging between said access nodes of said received channel information thus ensuring that all channel information is distributed to all cooperative access nodes; - processing all received channel information by each one of said access nodes, and determining by said access nodes using said processed channel information, of a channel estimation for said joint transmission.

公开(公告)号：EP2103070B1

公开(公告)日：2015-12-09

申请号：EP07727239.1

申请日：2007-03-22

申请人： Nokia Solutions and Networks GmbH & Co. KG ,  Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： FORCK, Andreas ,  GAEBLER, Holger ,  HAUSTEIN, Thomas ,  HINDELANG, Thomas ,  JUNGNICKEL, Volker ,  ZIRWAS, Wolfgang

IPC分类号： H04L27/26

CPC分类号： H04L27/2636

公开(公告)号：EP2387832B1

公开(公告)日：2013-09-25

申请号：EP09778954.9

申请日：2009-01-15

申请人： Nokia Siemens Networks GmbH & Co. KG ,  Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： FORCK, Andreas ,  HAUSTEIN, Thomas ,  JUNGNICKEL, Volker ,  SCHELLMANN, Malte ,  THIELE, Lars ,  WIRTH, Thomas

IPC分类号： H04L1/00

CPC分类号： H04L1/0026 ,  H04L1/0023 ,  H04L1/0029 ,  H04W28/24 ,  H04W52/24

摘要： It is described a method for transmitting channel quality information between a second network element and a first network element. The method includes (a) dividing a range of possible radio channel qualities between the two network elements into a fixed number of quality classes, (b) measuring the quality of a radio channel between the two network elements, (c) selecting one quality class out of the fixed number of quality classes based on the measured quality of the radio channel, (d) transmitting from the second network element to the first network element a first channel quality information being indicative for the selected quality class, and (e) transmitting from the second network element to the first network element a second channel quality information being indicative for the measured quality within the limits of the selected quality class. It is further described the first and the second network element, which in conjugation with each other are adapted to carry out the described method.

公开(公告)号：EP2387832A1

公开(公告)日：2011-11-23

申请号：EP09778954.9

申请日：2009-01-15

申请人： Siemens Networks GmbH & Co. KG ,  Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： FORCK, Andreas ,  HAUSTEIN, Thomas ,  JUNGNICKEL, Volker ,  SCHELLMANN, Malte ,  THIELE, Lars ,  WIRTH, Thomas

IPC分类号： H04L1/00

CPC分类号： H04L1/0026 ,  H04L1/0023 ,  H04L1/0029 ,  H04W28/24 ,  H04W52/24

摘要： It is described a method for transmitting channel quality information between a second network element and a first network element. The method includes (a) dividing a range of possible radio channel qualities between the two network elements into a fixed number of quality classes, (b) measuring the quality of a radio channel between the two network elements, (c) selecting one quality class out of the fixed number of quality classes based on the measured quality of the radio channel, (d) transmitting from the second network element to the first network element a first channel quality information being indicative for the selected quality class, and (e) transmitting from the second network element to the first network element a second channel quality information being indicative for the measured quality within the limits of the selected quality class. It is further described the first and the second network element, which in conjugation with each other are adapted to carry out the described method.

公开(公告)号：EP2103070A1

公开(公告)日：2009-09-23

申请号：EP07727239.1

申请日：2007-03-22

申请人： Siemens Networks GmbH & Co. KG ,  Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V.

发明人： FORCK, Andreas ,  GAEBLER, Holger ,  HAUSTEIN, Thomas ,  HINDELANG, Thomas ,  JUNGNICKEL, Volker ,  ZIRWAS, Wolfgang

IPC分类号： H04L27/26

CPC分类号： H04L27/2636

摘要： The invention relates to a method and/or an OFDM device for SC-FDMA data transmission in which a sequence of input data (x(i), i = 1, 2, 3,..., N) is transformed by means of a discrete transformation (DFT) as transformed data signals (yi, i = 1, 2, 3,..., N) of coded and modulated data signals on first frequency channels (f1, f2, f3,..., fN) into a first frequency space over a first number of frequencies (N), the transformed data signals (yi) are mapped on second frequency channels (f1*, f2*, f3*,..., fN *,...., fNc*) in a second frequency space with a larger second number of frequencies (Nc), the transformed data signals on the second frequency channels are inverse-transformed using an inverse transformation (IFFT), and data (zi) inversely transformed in such a way are provided for transmission. On this basis, the transformed data signals (yi) are mapped into a frequency range (fi+1*,..., fi+N*) of the second frequency channels in such a way that a constant component (y1, f1) of the transformed data signals (yi) is mapped centrally within the frequency range (fi+1*,..., fi+N*).

摘要翻译： 本发明涉及一种用于SC-FDMA数据传输的方法和/或OFDM设备，其中输入数据序列（x（i），i = 1,2,3，...，N）通过 作为第一频率信道（f1，f2，f3，...，fN）上的编码和调制数据信号的变换数据信号（yi，i = 1,2,3，...，N）的离散变换（DFT） 在第一数量的频率（N）上的第一频率空间中，变换的数据信号（yi）被映射到第二频率信道（f1 *，f2 *，f3 *，...，fN *，...， （N c）的第二频率空间中的数据（f Nc *），使用逆变换（IFFT）对第二频率信道上的变换后的数据信号进行逆变换，并且对这样的 提供传输方式。 在此基础上，经变换的数据信号（yi）被映射到第二频率信道的频率范围（fi + 1 *，...，fi + N *）中，使得恒定分量（y1，f1） 的变换数据信号（yi）在频率范围（fi + 1 *，...，fi + N *）内集中映射。