公开(公告)号：EP1064737A2

公开(公告)日：2001-01-03

申请号：EP99924692.9

申请日：1999-03-25

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： BAHRENBURG, Stefan ,  BAIER, Paul, Walter ,  EMMER, Dieter ,  MAYER, Jürgen ,  SCHLEE, Johannes ,  WEBER, Tobias

IPC分类号： H04B7/26 ,  H04Q7/38

CPC分类号： H04J13/16 ,  H04B7/26 ,  H04B2001/6908 ,  H04J13/0074 ,  H04W28/06 ,  H04W72/02 ,  H04W72/044

摘要： The invention relates to a method and device for allocating channels in a radiocommunications system which uses a TD/CDMA subscriber separating method. The allocation of at least one channel is signalized to a radio station in a signaling message by an information element. At least one time slot is selected by a time slot selection sub-information element. Afterwards, at least one CDMA code is selected for each selected time slot by a code selection sub-information element, whereby the number of code selection sub-information elements correspond to the number of selected time slots.

公开(公告)号：EP1027777A1

公开(公告)日：2000-08-16

申请号：EP98961022.5

申请日：1998-10-19

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： BAHRENBURG, Stefan ,  MAYER, Jürgen ,  EMMER, Dieter ,  BAIER, Paul, Walter ,  SCHLEE, Johannes ,  WEBER, Tobias

IPC分类号： H04B7/26 ,  H04B1/707

CPC分类号： H04B7/2615 ,  H04B7/2628

摘要： The invention relates to a radiocommunications system which provides transmission channels which each contain the useful information (ni) of several connections between mobile stations (MS) and at least one base station (BS) at once, said connections being distinguishable by a connection-specific fine structure. According to the invention, the radiocommunications system is operated at least in certain radio ranges in the manner of a common frequency system with a single frequency (sf) for the simultaneous transmission of organisation information (oi) from base stations (B) to mobile stations (MS). This results in all of the receiving devices having the advantages of uniform access to a single frequency and in a high level of frequency efficiency since there is no need for frequency synchronisation when the organisation information is received from the transmission devices.

公开(公告)号：EP1004172A1

公开(公告)日：2000-05-31

申请号：EP98946246.0

申请日：1998-07-27

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： BAHRENBURG, Stefan ,  EUSCHER, Christof ,  WEBER, Tobias ,  BAIER, Paul, Walter ,  MAYER, Jürgen ,  SCHLEE, Johannes ,  STEINER, Bernd

IPC分类号： H04B7/005 ,  H04L25/02 ,  H04L25/03

CPC分类号： H04L25/0246 ,  H04L25/0228

摘要： According to the inventive method for estimating channels in a telecommunication system, signals comprising a data part containing data symbols and a mid-amble containing known LM symbols are transmitted through a transmission channel. Channel coefficients relating to a channel impulse response are estimated on the receiving end. In order to estimate channel coefficients, the received mid-amble dependent signal is folded with estimation coefficients derived from the known mid-amble symbols by means of a Fourrier transformation. The Fourrier transformation is carried out on the basis of 2x≥2L. The invention can be used particularly advantageously in 3rd generation mobile radio telephone networks.

公开(公告)号：EP1000472A2

公开(公告)日：2000-05-17

申请号：EP98947312.9

申请日：1998-07-20

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： BAHRENBURG, Stefan ,  EUSCHER, Christoph ,  WEBER, Tobias ,  BAIER, Paul, Walter ,  MAYER, Jürgen ,  SCHLEE, Johannes

IPC分类号： H04B7/26

CPC分类号： H04B1/707 ,  H04B7/2618 ,  H04B7/2656 ,  H04J13/00 ,  H04L7/041 ,  H04W72/08 ,  Y10S370/913

摘要： The invention relates to a method for transmitting data in a radio communications system. According to said method, a radio interface is sub-divided into time slots for transmitting bursts, the data being transmitted in data channels in a time slot. Said data channels are distinguishable by an individual spread code. A terminal burst consisting of data symbols and at least one midamble with known symbols is used for transmitting data in a data channel. At least one parameter relating to the traffic conditions for the radio interface and the ratio of the length of midamble and of a data part with data symbols is adjusted according to the traffic conditions. The inventive method is particularly suitable for use in 3rd generation TD/CDMA mobile radio networks.

摘要翻译： 本发明涉及一种用于在无线电通信系统中传输数据的方法。 根据所述方法，无线电接口被细分成用于传输突发的时隙，该数据在时隙中在数据信道中传输。 所述数据信道可以通过单独的扩展码来区分。 由数据符号和至少一个具有已知符号的中置码组成的终端突发用于在数据信道中发送数据。 根据业务条件调整至少一个与无线电接口的业务条件有关的参数以及中间码和具有数据码元的数据部分的长度的比率。 本发明的方法特别适用于第三代TD / CDMA移动无线电网络。

公开(公告)号：EP0997012A1

公开(公告)日：2000-05-03

申请号：EP97909203.8

申请日：1997-10-01

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： BAHRENBURG, Stefan ,  EUSCHER, Christoph ,  BAIER, Paul, Walter ,  MAYER, Jürgen ,  SCHLEE, Johannes ,  WEBER, Tobias

IPC分类号： H04B7/26

CPC分类号： H04L5/06 ,  H04B7/2618

摘要： In order to compatibly adapt the air interface in a wireless telecommunications system with a CDMA, FDMA and TDMA multiple access component, especially a 'JD-CDMA' telecommunications system with hybrid multiple access techniques, to a GSM-specific/DECT-specific (micro, macro and/or pico-cell specific) telecommunications system, the signaling information configured as a 'stealing flag' to distinguish user channels from signaling channels is arranged in a given time slot structure in such a way that an asymmetric distribution of time slot data with respect to a training data block (midamble) of the time slot structure occurs. The transmission duration of a data element that is contained several times in the time slot structure and that is configured as a 'chip' is measured in such a way that said transmission duration is a harmonic multiple of a reciprocal predetermined pulse frequency, i.e. a GSM/DECT-specific pulse frequency, ranging from 5 to 7.