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11. 发明申请

WO02052743A9 APPARATUS AND METHODS FOR FINGER DELAY SELECTION IN RAKE RECEIVERS 审中-公开
标题翻译： RAKE接收机中手指延迟选择的装置和方法
公开(公告)号：WO02052743A9
公开(公告)日：2004-08-05
申请号：PCT/US0149268
申请日：2001-12-18
申请人： ERICSSON INC , WANG YI-PIN ERIC , BOTTOMLEY GREGORY EDWARD , URABE KENZO
发明人： WANG YI-PIN ERIC , BOTTOMLEY GREGORY EDWARD , URABE KENZO
IPC分类号： H04B1/7117 , H04B1/712 , H04B1/707
CPC分类号： H04B1/712 , H04B1/7117 , H04B2201/709727
摘要： Methods of recovering information encoded in a spread spectrum signal transmitted according to a spreading sequence in a communications medium are provided in which a spread spectrum signal is received from the communications medium and correlated with a spreading sequence to produce a plurality of time-offset correlations. Some of these time-offset correlations may be designed to cancel out known interfering signals. A subset of the plurality of time-offsets may then be selected, and corresponding traffic correlations may then be combined using a weighted combination to estimate information encoded in the transmitted spread spectrum signal. Receivers for implementing these methods are also provided.
摘要翻译：提供了恢复在通信介质中根据扩展序列发送的扩频信号中编码的信息的方法，其中从通信介质接收扩频信号并与扩展序列相关联以产生多个时间偏移相关。这些时间偏移相关中的一些可被设计为消除已知的干扰信号。然后可以选择多个时间偏移的子集，然后可以使用加权组合来组合对应的业务相关性，以估计在所发送的扩展频谱信号中编码的信息。还提供了实现这些方法的接收器。

12. 发明申请

WO9823112A3 TIME-MULTIPLEXED SHORT MESSAGE ACKNOWLEDGMENT SYSTEMS AND METHODS 审中-公开
标题翻译：时间复杂的短消息确认系统和方法
公开(公告)号：WO9823112A3
公开(公告)日：1998-09-03
申请号：PCT/US9720256
申请日：1997-11-11
申请人： ERICSSON GE MOBILE INC , WANG YI PIN ERIC
发明人： WANG YI-PIN ERIC
IPC分类号： H04W4/14 , H04W74/08 , H04Q7/22 , H04B7/26 , H04Q7/38
CPC分类号： H04W74/0866 , H04W4/14
摘要： Access requests are communicated from a plurality of radiotelephones to a central station over a random access channel carrier frequency band during a first RACH message time window. Short message acknowledgements are communicated from the plurality of radiotelephones to the central station over the random access channel carrier frequency band during a second RACH message time window, in response to short messages communicated from the central station to the plurality of radiotelephones. Preferably, the first RACH message time window includes a first set of TDMA time slots in a group of TDMA control channel multiframes, and the second RACH message time window includes a second set of TDMA time slots in the group of TDMA control channel multiframes, thereby forming a RACH multiframe. Preferably, the first and second RACH message time windows are separated by a guard time. A radiotelephone communications signal representing a short message acknowledgement encoded according to a predetermined short message code, preferably previously communicated to a radiotelephone in a short message from the central station, may be transmitted from the radiotelephone. The radiotelephone communications signal is received at the central station and decoded according to the predetermined short message code to thereby recover a short message acknowledgement. The plurality of radiotelephones may be arranged into paging groups, each having a unique short message code assigned thereto, and a limited number of short message including the unique short message code may be communicated during a given RACH multiframe.

13. 发明申请

WO2006132592A2 METHOD AND APPARATUS FOR REDUCING INTERFERENCE IN SPREAD SPECTRUM SIGNALS USING SPREADING CODE CROSS-CORRELATIONS 审中-公开
标题翻译：用于减少使用扩展代码交叉关联的扩频信号中的干扰的方法和装置
公开(公告)号：WO2006132592A2
公开(公告)日：2006-12-14
申请号：PCT/SE2006050186
申请日：2006-06-07
申请人： ERICSSON TELEFON AB L M
发明人： GRANT STEPHEN , CHENG JUNG-FU THOMAS , KRASNY LEONID , MOLNAR KARL J , WANG YI-PIN ERIC
IPC分类号： H04B1/707
CPC分类号： H04B1/712 , H04B1/7103 , H04B1/711 , H04B7/04 , H04B2201/709727
摘要： A receiver reduces interference in a received symbol of interest attributable to an interfering symbol using knowledge of the symbol spreading codes. The receiver comprises a plurality of correlators generating despread values for the received symbol of interest and the interfering symbol, and a combiner to combine the despread values using combining weights calculated base on spreading code correlations between spreading codes for the received symbol of interest and the interfering symbol.
摘要翻译：接收机使用符号扩展码的知识来减少归因于干扰符号的接收的感兴趣的符号中的干扰。接收机包括多个相关器，用于产生所接收的感兴趣符号和干扰符号的解扩值，以及组合器，使用基于所接收的感兴趣符号的扩展码和干扰信号的扩展码之间的扩展码相关性计算的合并权重组合去扩展值符号。

14. 发明申请

WO2006115459A2 JOINT DETECTOR IN A CODE DIVISION MULTIPLE ACCESS RADIO RECEIVER 审中-公开
标题翻译：代码段中的联合检测器多路访问无线电接收器
公开(公告)号：WO2006115459A2
公开(公告)日：2006-11-02
申请号：PCT/SE2006050076
申请日：2006-04-13
申请人： ERICSSON TELEFON AB L M
发明人： WANG YI-PIN ERIC , CHENG JUNG-FU
IPC分类号： H04J11/00 , H04L1/18
CPC分类号： H04J13/20 , H04B1/7105 , H04B1/71052 , H04B1/71055 , H04B1/71072 , H04J13/0044 , H04L25/03305
摘要： A joint detector (42) that improves the performance of receiving a downlink control channel signal for a near-end mobile terminal in the presence of a stronger control channel signal addressed to a far-end mobile terminal sharing the same OVSF or channelization code through the use of orthogonal signature sequences. Depending on the specific embodiment, the joint detector may produce the desired bits for the control signal of interest, or may produce detected bits for all control signals sharing the same OVSF code. The joint detector despreads and combines the received code-multiplexed signal, utilizing knowledge of the cross correlations of the set of signature sequences and time-varying channel coefficients to alleviate performance degradation caused by interference from other signals. In various embodiments, the joint detector may be implemented as 15 a modified decorrelating detector (43), a modified MMSE detector (44), a modified LS estimator detector (45), a successive interference-canceling detector, or a jointly hypothesized detector (46).
摘要翻译：一种联合检测器（42），其在存在针对通过共享相同OVSF或信道化码的远端移动终端的较强控制信道信号的情况下，改善接收近端移动终端的下行链路控制信道信号的性能使用正交签名序列。根据具体实施例，联合检测器可以产生用于感兴趣的控制信号的期望比特，或者可以产生用于共享相同OVSF码的所有控制信号的检测比特。联合检测器利用所述签名序列集合和时变信道系数的互相关的知识来对接收的码复用信号进行解扩和合并，以减轻由其他信号的干扰引起的性能下降。在各种实施例中，联合检测器可以被实现为修改的去相关检测器（43），修改的MMSE检测器（44），修改的LS估计器检测器（45），连续干扰消除检测器或联合假设的检测器 46）。

15. 发明申请

WO2014021772A3 METHODS AND APPARATUSES FOR A HETEROGENEOUS NETWORK WITH AN IMBALANCED POWER REGION 审中-公开
标题翻译：具有不平衡电力区域异质网络的方法和装置
公开(公告)号：WO2014021772A3
公开(公告)日：2014-04-03
申请号：PCT/SE2013050942
申请日：2013-07-30
申请人： ERICSSON TELEFON AB L M
发明人： WANG YI-PIN ERIC , GRANT STEPHEN , RAMOS EDGAR , HOEGLUND ANDREAS , MIAO QINGYU
IPC分类号： H04W72/08 , H04W16/24 , H04W72/04 , H04W84/04
CPC分类号： H04W36/32 , H04B7/022 , H04W16/32 , H04W52/146 , H04W52/242 , H04W52/283 , H04W52/325 , H04W52/386 , H04W76/025 , H04W84/045
摘要： There is provided a method of operating a network node in a communication network, the communication network comprising a mobile device, a first base station and a second base station, the first base station having a lower transmission power than the second base station and being located within the coverage area of the second base station, the mobile device being located within an imbalanced region between the first base station and the second base station and being served by the first base station, the method in the network node comprising configuring the mobile device, the first base station and the second base station such that the mobile device transmits uplink data to the first base station, and the mobile device receives downlink data only from the second base station. Corresponding methods are provided for operating a mobile device and a second base station. A network node, mobile device and second base station are also provided that are configured to perform the respective operating methods.
摘要翻译：提供了一种在通信网络中操作网络节点的方法，所述通信网络包括移动设备，第一基站和第二基站，所述第一基站具有比所述第二基站更低的发送功率并且被定位在第二基站的覆盖区域内，移动设备位于第一基站和第二基站之间的不平衡区域内并由第一基站服务，网络节点中的方法包括配置移动设备，第一基站和第二基站，使得移动设备向第一基站发送上行链路数据，并且移动设备仅从第二基站接收下行链路数据。提供了用于操作移动设备和第二基站的相应方法。还提供了被配置为执行各自的操作方法的网络节点，移动设备和第二基站。

16. 发明申请

WO2008054304A3 SYSTEM AND METHOD FOR CODING WCDMA MIMO CQI REPORTS 审中-公开
标题翻译：用于编码WCDMA MIMO CQI报告的系统和方法
公开(公告)号：WO2008054304A3
公开(公告)日：2008-06-05
申请号：PCT/SE2007050744
申请日：2007-10-16
申请人： ERICSSON TELEFON AB L M
发明人： CHENG JUNG-FU , WANG YI-PIN ERIC , GRANT STEPHEN
IPC分类号： H04L1/00 , H03M13/05
CPC分类号： H04B7/0473 , H04B1/707 , H04L1/0026 , H04L1/0031 , H04L1/0057 , H04L1/0073 , H04L1/06 , H04L25/0202
摘要： A block coding method and system for improving the reliability of Channel Quality Indicators (CQI) and antenna weight Indicators (AWI) reporting. A user terminal first generates 8-bit CQI and 2-bit AWI. A codeword generator produces a codeword responsive to these 10 CQI/AWI bits using a codebook or a generator matrix of a (20, 10, 6) code. The (20, 10, 6) code has a minimum Hamming distance of 6. The encoded codeword is transmitted to a receiver for decoding utilizing an identical (20, 10, 6) codebook.
摘要翻译：一种用于提高信道质量指示符（CQI）和天线权重指示符（AWI）报告的可靠性的分组编码方法和系统。用户终端首先生成8位CQI和2位AWI。码字发生器使用码本或（20,10,6）码的发生器矩阵产生响应于这10个CQI / AWI比特的码字。（20,10,6）码具有最小汉明距离6.编码码字被发送到接收机以利用相同的（20,10,6）码本进行解码。

17. 发明申请

WO2007094728A2 REDUCED COMPLEXITY INTERFERENCE SUPPRESSION FOR WIRELESS COMMUNICATIONS 审中-公开
标题翻译：减少对无线通信的复杂干扰抑制
公开(公告)号：WO2007094728A2
公开(公告)日：2007-08-23
申请号：PCT/SE2007050043
申请日：2007-01-30
申请人： ERICSSON TELEFON AB L M
发明人： KHAYRALLAH ALI S , ERIKSSON HAAKAN , COZZO CARMELA , BOTTOMLEY GREGORY E , WANG YI-PIN ERIC
IPC分类号： H04B1/707
CPC分类号： H04B1/712 , H04B1/71052 , H04B1/711 , H04B2201/709727
摘要： The computational complexity required for interference suppression in the reception of wireless communications from multiple users is reduced by sharing information among the users. In some situations, information indicative of a statistical characteristic of the interference is shared among the users. Delays used to produce the interference statistic information are determined based on rake finger delays employed by the users. In some situations, a parameter estimate that is used to calculate combining weights for the users is shared among the users.
摘要翻译：通过在用户之间共享信息来减少接收来自多个用户的无线通信中的干扰抑制所需的计算复杂度。在一些情况下，指示干扰的统计特征的信息在用户之间共享。用于产生干扰统计信息的延迟是基于用户采用的瑞克手指延迟而确定的。在某些情况下，用户可以共享用于计算用户组合权重的参数估计值。

18. 发明申请

WO2007046758A3 NETWORK-CONTROLLED FEEDBACK FOR MIMO SYSTEMS 审中-公开
标题翻译： MIMO系统的网络控制反馈
公开(公告)号：WO2007046758A3
公开(公告)日：2007-06-14
申请号：PCT/SE2006050379
申请日：2006-10-05
申请人： ERICSSON TELEFON AB L M
发明人： GRANT STEPHEN , CHENG JUNG-FU THOMAS , WANG YI-PIN ERIC , MOLNAR KARL , KRASNY LEONID
IPC分类号： H04B7/06 , H04B1/707 , H04B7/08
CPC分类号： H04B7/0645 , H04B1/71072 , H04B1/712 , H04B7/04 , H04B7/06 , H04B7/0632 , H04B7/0689 , H04B7/0691 , H04B7/0697 , H04B7/0891 , H04L1/06
摘要： In a selective MIMO system, the mobile station provides channel quality feedback for one or more possible transmission mode. The mobile station provides channel quality feedbac for a first mode regardless of channel conditions and determines whether to provide feedback for one or more additional modes based on current channel conditions.
摘要翻译：在选择性MIMO系统中，移动台为一个或多个可能的传输模式提供信道质量反馈。移动台无论信道条件如何都为第一模式提供信道质量反馈，并基于当前信道条件确定是否为一个或多个附加模式提供反馈。

19. 发明申请

WO2006132593A3 A METHOD AND APPARATUS FOR IMPAIRMENT CORRELATION ESTIMATION IN A WIRELESS COMMUNICATION RECEIVER 审中-公开
标题翻译：一种用于在无线通信接收机中抵消相关估计的方法和装置
公开(公告)号：WO2006132593A3
公开(公告)日：2007-01-18
申请号：PCT/SE2006050187
申请日：2006-06-09
申请人： ERICSSON TELEFON AB L M
发明人： GRANT STEPHEN , KRASNY LEONID , WANG YI-PIN ERIC , MOLNAR KARL J , CHENG JUNG-FU
IPC分类号： H04B1/707 , H04B7/06
CPC分类号： H04B1/712 , H04B1/7103 , H04B1/7105 , H04B1/71055 , H04B1/7107 , H04B1/71072 , H04B7/04 , H04B7/0684 , H04B2201/70701 , H04B2201/70702 , H04B2201/709727 , H04L1/0002 , H04L1/0009 , H04L1/0048 , H04L1/18 , H04L25/021 , H04L25/0224 , H04L25/03012 , H04L25/03318 , H04L25/03331 , H04W52/16 , H04W52/325 , H04W52/346 , H04W52/42
摘要： A wireless communication receiver improves signal impairment correlation estimation in MIMO/MISO systems by considering different transmit power allocations and different transmit antenna power distributions in its impairment correlation calculations. The receiver may be implemented in according to a variety of architectures, including, but not limited to, Successive Interference Cancellation (SIC) Generalized RAKE (G-RAKE), Joint Detection (JD) G-RAKE, and Minimum Mean Squared Error (MMSE) G-RAKE. Regardless of the particular receiver architecture adopted, the improved impairment correlations may be used to calculate improved (RAKE) signal combining weights and/or improve channel quality estimates for reporting by receivers operating in Wideband CDMA (W-CDMA) systems transmitting HSDPA channels via MIMO or MISO transmitters. A transmitter may be configured to facilitate impairment correlation determinations by wireless communication receivers operating in MIMO/MISO environments, by signaling one or more values, e.g., data-to-pilot signal transmit power ratios and/or transmit antenna power distributions for the data and pilot signals.
摘要翻译：无线通信接收机通过在损伤相关计算中考虑不同的发射功率分配和不同的发射天线功率分布来改善MIMO / MISO系统中的信号损害相关估计。接收机可以根据各种架构来实现，包括但不限于连续干扰消除（SIC）广义RAKE（G-RAKE），联合检测（JD）G-RAKE和最小均方误差（MMSE））G-RAKE。不考虑所采用的特定接收机架构，改进的损害相关可以用于计算改进的（RAKE）信号组合权重和/或改善用于在通过MIMO发送HSDPA信道的宽带CDMA（W-CDMA）系统中操作的接收机报告的信道质量估计或MISO发射机。发射机可以被配置为通过信令一个或多个值（例如数据到导频信号发射功率比和/或数据的发射天线功率分布）来促进在MIMO / MISO环境中操作的无线通信接收机的损害相关确定，以及导频信号。

20. 发明申请

WO2013162440A3 METHOD AND APPARATUS FOR SOFT SYMBOL PROCESSING IN A COMMUNICATION RECEIVER 审中-公开
标题翻译：通信接收机中软符号处理的方法和装置
公开(公告)号：WO2013162440A3
公开(公告)日：2014-01-16
申请号：PCT/SE2013050221
申请日：2013-03-12
申请人： ERICSSON TELEFON AB L M
发明人： SAMUEL BEBAWY MICHAEL , HUSS FREDRIK , WANG YI-PIN ERIC
IPC分类号： H03M13/00 , H03M13/41 , H03M13/45 , H04B1/707 , H04L27/18
CPC分类号： H04L25/03012 , H04L1/005 , H04L25/03171 , H04L25/0328 , H04L27/38
摘要： In one aspect, the present invention improves Turbo equalization and/or soft interference cancellation processing in communication receivers by providing an efficient and accurate technique to compute the second moment of a received symbol, e.g., an interfering symbol, as a function of the expected bit values of only those bits in the symbol that are magnitude- controlling bits according to a defined modulation constellation. Advantageously, the expected bit values in at least one embodiment are computed using a LUT that maps bit LLRs to corresponding hyperbolic tangent function values. Further, the expected symbol value is computed as a linear function of terms comprising the expected bit values and the soft symbol variance is efficiently computed from the second moment and the expected symbol value squared. This simplified processing reduces receiver complexity, particularly in the context of modulation constellations having non-constant magnitudes, and thus saves power and/or improves design economics.
摘要翻译：在一个方面，本发明通过提供有效和准确的技术来计算接收符号的第二时刻（例如干扰符号）来改善通信接收机中的Turbo均衡和/或软干扰消除处理，作为预期位的函数根据定义的调制星座，只有符号中那些位是幅度控制位的值。有利地，使用将位LLR映射到对应的双曲正切函数值的LUT来计算至少一个实施例中的预期位值。此外，预期符号值被计算为包括预期位值的项的线性函数，并且从第二时刻有效地计算软符号方差，并且预期符号值平方。这种简化的处理降低了接收机复杂性，特别是在具有非恒定幅度的调制星座的上下文中，从而节省功率和/或改善了设计经济性。

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