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公开(公告)号：EP2965452A1
公开(公告)日：2016-01-13
申请号：EP13708135.2
申请日：2013-03-06
CPC分类号： H04J11/005 , H04J11/0069 , H04J11/0079 , H04J11/0086 , H04J2211/001 , H04J2211/005 , H04L25/0204 , H04L25/0206 , H04L25/0224
摘要： A method of a wireless communication device for a cellular communication system is disclosed. According to the method, a signal comprising a first known signal sequence and a second known signal sequence for each of one or more first cells of the cellular communication system is received, and the first and second known signal sequences of each of the one or more first cells are detected based on the received signal. For at least one of the one or more first cells, one of the first known signal sequence, the second known signal sequence, and a combination of the first and second known signal sequences is selected for channel estimation. The selection is based on the detected first and second known signal sequences of the one or more cells. Channel estimation of the at least one of the one or more first cells is performed based on the signal sequence selection. In some examples, the method may further comprise performing interference cancellation of at least one of the first and second known signal sequences of the at least one of the one or more first cells based on the channel estimation and detecting one or more second cells of the cellular communication system after the interference cancellation. Corresponding computer program product, arrangement and wireless communication device are also disclosed.
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2.发明授权ALLEVIATING MOBILE DEVICE OVERLOAD CONDITIONS IN A MOBILE COMMUNICATION SYSTEM 有权移动设备过载条件下在移动通信系统还原
公开(公告)号：EP2250753B1
公开(公告)日：2014-11-19
申请号：EP09713919.0
申请日：2009-02-20
发明人： LINDOFF, Bengt , ANZILL, Werner , WILDE, Andreas , PALENIUS, Torgny , BERNHARDSSON, Bo , NILSSON, Johan
CPC分类号： H04L1/0026 , H04B1/036 , H04B1/40 , H04L1/0028 , H04L1/0031 , H04L1/0036 , H04L1/1607 , H04W72/1252 , H04W72/1284
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公开(公告)号：EP1138126A1
公开(公告)日：2001-10-04
申请号：EP99963768.9
申请日：1999-11-26
发明人： ATARIUS, Roozbeh , ERIKSSON, H kan , PALENIUS, Torgny , CARLSSON, Torsten , GUSTAFSSON, Kjell , ÖSTBERG, Christer
IPC分类号： H04B1/707
CPC分类号： H04B1/7115 , H04B1/7093
摘要： A searcher uses an input signal, and for example, a matched filter to generate a first set of candidate paths. A selector uses the input signal and the first set of candidate paths to generate a second set of paths. The second set of paths is used to configure the fingers of a RAKE receiver. According to one aspect of the invention, the first set of candidate paths contains M paths, and the second stage uses M correlators to generate a set of M correlation values. The second stage uses the M correlation values to select N paths that are used to configure the N fingers of the RAKE receiver. According to another aspect of the invention, the first set of candidate paths contains M paths, and the second stage uses a multiple of M correlators to track the M paths and generate a set of M estimates. The second stage uses the M estimates to select N paths that are used to configure the N fingers of the RAKE receiver. According to another aspect of the invention, the selector can generate new sets of N paths while the searcher is either active or inactive. The receiver can use a quality signal or a counter to notify the searcher and/or the selector to generate new sets of paths. The selector decreases the need to continuously run the matched filter. The receiver car re-configure the fingers without having to search for new paths. The receiver can also find paths that are uncorrelated and less susceptible to fading.
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4.发明公开CONTROL OF POWER RATIOS FOR IN-PHASE AND QUADRATURE CHANNELS IN A COMMUNICATIONS SYSTEM 有权业绩条件用于在通信系统中的同相和正交通道控制，
公开(公告)号：EP1108285A1
公开(公告)日：2001-06-20
申请号：EP99946500.8
申请日：1999-08-23
发明人： PALENIUS, Torgny , ERIKSSON, Hakan
CPC分类号： H04W52/16 , H03G3/3089 , H04B1/707 , H04W52/267 , H04W52/325
摘要： A transmitter in a radiocommunications system such as a Wideband Code Division Multiple Access (WCDMA) communications system transmits one set of data on an in-phase (I-) channel and another set of data on a quadrature (Q-) channel. The transmitter generates a gain signal, β, and multiplies the digital data associated with the Q-channel by the gain signal, β. Complexity of the multiplication operation is reduced by limiting the gain signal, β, to a finite nubmer of values that are exactly representable by a predefined number of bits, such as 4-bit values to the right of a binary radix point. Modulation inaccuracy associated with quantization of β can be eliminated by utilizing the same quantized values of β in all components within the radiocommunications system.
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公开(公告)号：EP2351431B1
公开(公告)日：2014-04-16
申请号：EP09782852.9
申请日：2009-09-10
发明人： SJÖGREN, Tommy , HOKFELT, Johan , PALENIUS, Torgny
IPC分类号： H04W48/16
CPC分类号： H04W48/16 , H04J11/0069
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公开(公告)号：EP1342325A2
公开(公告)日：2003-09-10
申请号：EP01991800.2
申请日：2001-12-07
发明人： PALENIUS, Torgny
IPC分类号： H04B1/707
CPC分类号： H04B1/70735
摘要： A method and apparatus for long code group determination. The long code group is determined based upon a number of symbols in a received codeword, wherein the number of symbols is less than the total number of symbols in the codeword. The long code group number can be determined either through the use of a table of code sequences or through a reduced complexity code search. The use of the of these techniques allows for a quick determination of the long code group used by a particular base station.
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7.发明公开
公开(公告)号：EP1171964A2
公开(公告)日：2002-01-16
申请号：EP00926867.3
申请日：2000-04-11
发明人： PALENIUS, Torgny
CPC分类号： H04W52/265 , H04W52/267 , H04W52/28 , H04W52/44
摘要： Introduction of slotted mode transmission in one link of a CDMA communication connection is supported by considering power control associated with the other link. According to one exemplary embodiment, power control is implemented by increasing the power by a fading margin in the other link during the idle portion created by slotted mode transmission in the first link. According to another exemplary embodiment both links enter slotted mode substantially simultaneously, such that their idle periods overlap and power control is not needed during the idle transmit time.
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8.发明公开ALLEVIATING MOBILE DEVICE OVERLOAD CONDITIONS IN A MOBILE COMMUNICATION SYSTEM 有权移动设备过载条件下在移动通信系统还原
公开(公告)号：EP2250753A1
公开(公告)日：2010-11-17
申请号：EP09713919.0
申请日：2009-02-20
发明人： LINDOFF, Bengt , ANZILL, Werner , WILDE, Andreas , PALENIUS, Torgny , BERNHARDSSON, Bo , NILSSON, Johan
CPC分类号： H04L1/0026 , H04B1/036 , H04B1/40 , H04L1/0028 , H04L1/0031 , H04L1/0036 , H04L1/1607 , H04W72/1252 , H04W72/1284
摘要： A user equipment (UE) in a mobile communications system is operated in a manner that alleviates or avoids an overload condition in the UE. This involves operating a receiver of the UE to receive one or more data blocks via a channel. In response to a user equipment overload condition being detected, a channel quality indicator (CQI) value is reported to a serving base station, wherein the reported CQI value represents a channel quality that is lower than an actual quality of the channel. The UE is then operated in a manner that is consistent with the reported CQI value. UE overload conditions include overheating, and an inability to process received data blocks at the rate at which they are being received.
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9.发明公开TECHNIQUE FOR IMPROVING OPEN LOOP POWER CONTROL IN SPEAD SPECTRUM TELECOMMUNICATIONS SYSTEMS 审中-公开方法改进与开放回路SPREIZSPEKTRUMNACHRICHTENÜBERTRAGUNGSSYSTEMEN功率控制
公开(公告)号：EP1396097A1
公开(公告)日：2004-03-10
申请号：EP02750982.7
申请日：2002-05-27
IPC分类号： H04B7/005
CPC分类号： H04W52/362 , H04W52/10 , H04W52/16 , H04W52/228 , H04W52/367 , H04W52/50
摘要： A technique for improving open loop power control in spread spectrum telecommunications systems is disclosed. In a preferred embodiment, the technique is realized by transmitting at least one first access channel probe for a first message from a mobile station to a base station, wherein the transmission power level of each access channel probe in the at least one first access channel probe is increased until a base station acknowledgment is received for a specific access channel probe of the at least one first access channel probe at a first transmission power level. The first transmission power level is then stored at the mobile station. At least one second access channel probe for a second message is then transmitted from the mobile station to the base station, wherein the transmission power level of an initial access channel probe of the at least one second access channel probe for the second message is based upon the first transmission power level.
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公开(公告)号：EP1323242A2
公开(公告)日：2003-07-02
申请号：EP01986378.6
申请日：2001-09-25
发明人： CARLSSON, Torsten , GUSTAFSSON, Kjell , ATARIUS, Roozbeh , ERIKSSON, Haakan , ÖSTBERG, Christer , PALENIUS, Torgny
IPC分类号： H04B1/707
CPC分类号： H04B1/70758 , H04B1/70757 , H04B1/712
摘要： A method and system enable matched filters of a CDMA system to be simplified using a two stage search. A course stage and a fine stage jointly produce the locations(s) of received signal path-rays. In a first stage, an oversampled digital signal (240) is decimated, and the decimated signal (415) is applied to a matched filter (420) to eventually produce an approximate location (460). In a second stage, the oversampled signal (240) is shifted based on the determined approximate location (460) and then correlated to a generated code (440), and a more-exact location is selected from the outputs of the correlations (450). Alternatively, a shifted version of the generated code (440) is correlated to the oversampled signal (240), and the more-exact location is selected from the outputs of those correlations (450).
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