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1. 发明申请

WO2011081581A1 CORRECTION OF ESTIMATED SIR USED FOR TRANSMIT POWER CONTROL 审中-公开
标题翻译：用于发送功率控制的估计SIR的校正
公开(公告)号：WO2011081581A1
公开(公告)日：2011-07-07
申请号：PCT/SE2009/051512
申请日：2009-12-29
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , BJÖRKEGREN, Håkan , RAO, Jing
发明人： BJÖRKEGREN, Håkan , RAO, Jing
IPC分类号： H04W52/24 , H04B1/707
CPC分类号： H04W52/246 , H04B17/327 , H04B17/336 , H04W52/12 , H04W52/225 , H04W52/228 , H04W52/241 , H04W52/243
摘要： The present invention provides a method which performs an estimation of a SIR as basis for transmit power control. The SIR estimation is performed for a radio signal (u) which is transmitted from a transmitter (35) to a receiver (43) over a radio channel (37). A channel estimate h and a combining weight w are first obtained (83). Then an estimated SIR value is generated (85) based at least in part on the channel estimate h and the combining weight w. The estimated SIR value is generated such that it equals a first estimated SIR value multiplied by a numerical factor. The numerical factor is dependent on the channel estimate h and the combining weight w in a manner such that it attains a minimum value whenever the channel estimate h and the combining weight w are linearly dependent. The invention also comprises devices for carrying out the method.
摘要翻译：本发明提供一种执行SIR估计的方法，作为发射功率控制的基础。对通过无线电信道（37）从发射机（35）发射到接收机（43）的无线电信号（u）进行SIR估计。首先获得信道估计h和组合权重w（83）。然后，至少部分地基于信道估计h和组合权重w生成估计的SIR值（85）。产生估计的SIR值使其等于乘以数值因子的第一估计SIR值。数值因子取决于信道估计h和组合权重w，使得只要信道估计h和组合权重w是线性相关的，它就达到最小值。本发明还包括用于执行该方法的装置。

2. 发明公开

EP2195935A1 SYSTEM AND METHOD FOR ACTIVITY-BASED POWER CONTROL TARGET ADJUSTMENTS IN A WIRELESS COMMUNICATION NETWORK 审中-公开
标题翻译：系统和方法基于在无线通信网络能源目标控制调节上的活动
公开(公告)号：EP2195935A1
公开(公告)日：2010-06-16
申请号：EP08828266.0
申请日：2008-08-25
申请人： Telefonaktiebolaget L M Ericsson (PUBL)
发明人： COZZO, Carmela , BJÖRKEGREN, Håkan , EDHOLM, Christer , HE, Ning
IPC分类号： H04B7/005
CPC分类号： H04W52/12 , H04W52/146 , H04W52/241 , H04W52/243 , H04W52/26 , H04W52/286
摘要： The teachings presented herein provide, among other things, improved power control stability and increased system capacity in a wireless communication network (20) by raising signal quality targets for mobile stations (10, 12, 14) engaged in scheduled uplink data transmissions and lowering those signal quality targets at the end of such transmissions. As one example, the teachings herein are applied to the Enhanced Uplink (EUL) in a Wideband CDMA (WCDMA) network. In that context, the target received signal quality (e.g., SIR) for a given mobile station's Dedicated Physical Control Channel (DPCCH) signal is raised for times when the mobile station (10) is engaged in a scheduled data transmission via its Enhanced-Dedicated Physical Data Channel (E-DPDCH), and lowered at other times. Doing so prevents the power control loop from 'chasing' the potentially dramatic changes in mobile-specific interference conditions that arise in a scheduled uplink environment.

3. 发明申请

WO2009134187A1 ESTIMATION OF SIGNAL TO INTERFERENCE RATIO 审中-公开
标题翻译：信号对干扰比的估计
公开(公告)号：WO2009134187A1
公开(公告)日：2009-11-05
申请号：PCT/SE2009/050214
申请日：2009-02-26
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , BJÖRKEGREN, Håkan , EDHOLM, Christer
发明人： BJÖRKEGREN, Håkan , EDHOLM, Christer
IPC分类号： H04B17/00 , H04B7/005 , H04B1/707
CPC分类号： H04W52/241 , H04B1/7107 , H04B17/336
摘要： A node (2) for use in a cellular communication system having interfering signals and employing interference cancellation techniques for mitigating the interfering signals comprises means (24) for obtaining a signal value representing power of a first signal. The node (2) further comprises means (25) for obtaining a precancellation interference value representing powers of signals interfering with the first signal before the interference cancellation is employed. A predictor (23) is arranged for predicting a postcancellation interference value after the interference cancellation as a function of the precancellation interference value. An estimator (29) is connected to the predictor (23) and the means (24) for obtaining a signal value. The estimator (29) is arranged for estimating a signal-to-interference ratio as a ratio between the signal value representing the power of the first signal and the predicted postcancellation interference value.
摘要翻译：用于具有干扰信号并采用干扰消除技术以减轻干扰信号的蜂窝通信系统的节点（2）包括用于获得表示第一信号功率的信号值的装置（24）。节点（2）还包括用于获得表示在采用干扰消除之前干扰第一信号的信号的功率的预校正干扰值的装置（25）。预测器（23）被布置用于根据预校正干扰值预测干扰消除之后的后检测干扰值。估计器（29）连接到预测器（23）和用于获得信号值的装置（24）。估计器（29）被布置为将信号干扰比估计为表示第一信号的功率的信号值与预测的后置干扰值之间的比率。

4. 发明授权

EP2294707B1 METHOD AND APPARATUS FOR CONFIDENCE WEIGHTING IN CDMA SYSTEM UNDER INTERFERENCE 有权
标题翻译：方法和装置信托相关的加权CDMA系统下的干涉效应
公开(公告)号：EP2294707B1
公开(公告)日：2016-01-06
申请号：EP09773838.9
申请日：2009-06-03
申请人： Telefonaktiebolaget L M Ericsson (PUBL)
发明人： HE, Ning , BJÖRKEGREN, Håkan , GUNNARSSON, Fredrik
IPC分类号： H04B1/7097
CPC分类号： H04B1/7097

5. 发明授权

EP2520122B1 CORRECTION OF ESTIMATED SIR USED FOR TRANSMIT POWER CONTROL 失效转让
标题翻译：发送功率控制的用于修正估计SIR
公开(公告)号：EP2520122B1
公开(公告)日：2015-11-04
申请号：EP09852856.5
申请日：2009-12-29
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： BJÖRKEGREN, Håkan , RAO, Jing
IPC分类号： H04W52/24 , H04B1/707 , H04W52/22 , H04B17/00 , H04W52/12
CPC分类号： H04W52/246 , H04B17/327 , H04B17/336 , H04W52/12 , H04W52/225 , H04W52/228 , H04W52/241 , H04W52/243

6. 发明公开

EP2294706A1 METHODS AND APPARATUS FOR SHARING SIGNAL CORRELATION DATA IN A RECEIVER 审中-公开
标题翻译：方法和设备用于在接收器共享数据的相关性
公开(公告)号：EP2294706A1
公开(公告)日：2011-03-16
申请号：EP09770473.8
申请日：2009-05-27
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： WANG, Yi-Pin Eric , BJÖRKEGREN, Håkan , BOTTOMLEY, Gregory E.
IPC分类号： H04B1/707
CPC分类号： H04B1/712 , H04B1/7107 , H04B1/71072 , H04B2201/709727
摘要： Methods and apparatus are disclosed for suppressing both own-cell and other-cell interference in the processing of multiple signals of interest in a received composite signal. In an exemplary embodiment of the methods disclosed herein, combining weights for each of a first plurality of signals of interest in a composite information signal are computed (320), based on first shared signal correlation data computed (310) from the composite information signal. A reduced-interference composite signal is calculated (330) from the composite information signal, using, for instance, subtractive interference cancellation or interference projection techniques. Combining weights for processing each of a second plurality of signals of interest are computed (350) as a function of second shared signal correlation data corresponding to the reduced- interference composite signal. Corresponding apparatus, including G-Rake (50) and chip equalizer (60) embodiments are also disclosed.

7. 发明公开

EP2294707A1 METHOD AND APPARATUS FOR CONFIDENCE WEIGHTING IN CDMA SYSTEM UNDER INTERFERENCE 有权
标题翻译：方法和装置信托相关的加权CDMA系统下的干涉效应
公开(公告)号：EP2294707A1
公开(公告)日：2011-03-16
申请号：EP09773838.9
申请日：2009-06-03
申请人： Telefonaktiebolaget L M Ericsson (PUBL)
发明人： HE, Ning , BJÖRKEGREN, Håkan , GUNNARSSON, Fredrik
IPC分类号： H04B1/707
CPC分类号： H04B1/7097
摘要： A received signal of interest is processed by determining (200) timing of interference spikes in the received signal of interest. Receivers can determine when certain types of interference spikes are expected to occur, e.g., based on when different users are scheduled to transmit data during an overlapping portion of the same transmission time interval. The interference timing information is used by the receiver to soft scale (202) signal values recovered from the received signal of interest that coincide with the interference spikes separately from remaining ones of the signal values. This way, fast changing interference power can be accurately tracked during periods of known interference spikes while also accurately tracking slower changing interference power during other periods.

8. 发明申请

WO2010002323A1 METHOD AND APPARATUS FOR CONFIDENCE WEIGHTING IN CDMA SYSTEM UNDER INTERFERENCE 审中-公开
标题翻译： CDMA系统干扰信号加权的方法和装置
公开(公告)号：WO2010002323A1
公开(公告)日：2010-01-07
申请号：PCT/SE2009/050661
申请日：2009-06-03
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： HE, Ning , BJÖRKEGREN, Håkan , GUNNARSSON, Fredrik
IPC分类号： H04B1/707
CPC分类号： H04B1/7097
摘要： A received signal of interest is processed by determining (200) timing of interference spikes in the received signal of interest. Receivers can determine when certain types of interference spikes are expected to occur, e.g., based on when different users are scheduled to transmit data during an overlapping portion of the same transmission time interval. The interference timing information is used by the receiver to soft scale (202) signal values recovered from the received signal of interest that coincide with the interference spikes separately from remaining ones of the signal values. This way, fast changing interference power can be accurately tracked during periods of known interference spikes while also accurately tracking slower changing interference power during other periods.
摘要翻译：通过确定（200）感兴趣的接收信号中的干扰尖峰的定时来处理所接收的感兴趣的信号。接收机可以确定何时预期会发生特定类型的干扰尖峰，例如，基于在相同传输时间间隔的重叠部分期间何时调度不同用户发送数据的时间。干扰定时信息被接收机用于从感兴趣的接收信号中恢复的信号值（202）与干扰峰值（其与信号值的剩余信号值分开）重合。这样，可以在已知干扰尖峰期间精确地跟踪快速变化的干扰功率，同时还可以在其他周期期间准确地跟踪较慢变化的干扰功率。

9. 发明申请

WO2009029031A1 SYSTEM AND METHOD FOR ACTIVITY-BASED POWER CONTROL TARGET ADJUSTMENTS IN A WIRELESS COMMUNICATION NETWORK 审中-公开
标题翻译：无线通信网络中基于活动的功率控制目标调整的系统和方法
公开(公告)号：WO2009029031A1
公开(公告)日：2009-03-05
申请号：PCT/SE2008/050956
申请日：2008-08-25
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： COZZO, Carmela , BJÖRKEGREN, Håkan , EDHOLM, Christer , HE, Ning
IPC分类号： H04B7/005
CPC分类号： H04W52/12 , H04W52/146 , H04W52/241 , H04W52/243 , H04W52/26 , H04W52/286
摘要： The teachings presented herein provide, among other things, improved power control stability and increased system capacity in a wireless communication network (20) by raising signal quality targets for mobile stations (10, 12, 14) engaged in scheduled uplink data transmissions and lowering those signal quality targets at the end of such transmissions. As one example, the teachings herein are applied to the Enhanced Uplink (EUL) in a Wideband CDMA (WCDMA) network. In that context, the target received signal quality (e.g., SIR) for a given mobile station's Dedicated Physical Control Channel (DPCCH) signal is raised for times when the mobile station (10) is engaged in a scheduled data transmission via its Enhanced-Dedicated Physical Data Channel (E-DPDCH), and lowered at other times. Doing so prevents the power control loop from "chasing" the potentially dramatic changes in mobile-specific interference conditions that arise in a scheduled uplink environment.
摘要翻译：本文所呈现的教导尤其通过提高参与调度的上行链路数据传输的移动台（10,12,14）的信号质量目标来提供无线通信网络（20）中的改进的功率控制稳定性和增加的系统容量，并且降低它们在这种传输结束时的信号质量目标。作为一个示例，本文的教导应用于宽带CDMA（WCDMA）网络中的增强型上行链路（EUL）。在这种情况下，针对给定移动台的专用物理控制信道（DPCCH）信号的目标接收信号质量（例如，SIR）在移动台（10）通过其增强专用物理数据通道（E-DPDCH），并在其他时间降低。这样做可以防止功率控制环路“追逐”在预定的上行链路环境中出现的移动专用干扰条件的潜在的巨大变化。

10. 发明申请

WO2011001399A2 INTERFERENCE CANCELLATION IN A MULTI-USER RECEIVER 审中-公开
标题翻译：多用户接收器中的干扰消除
公开(公告)号：WO2011001399A2
公开(公告)日：2011-01-06
申请号：PCT/IB2010/053009
申请日：2010-06-30
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , KHAYRALLAH, Ali S. , BJÖRKEGREN, Håkan
发明人： KHAYRALLAH, Ali S. , BJÖRKEGREN, Håkan
IPC分类号： H04B1/707
CPC分类号： H04B1/71072 , H04B2201/70714
摘要： The delay associated with performing interference cancellation in a multi-user receiver is reduced by enabling partial decoding. According Io an embodiment, interference is canceled from a received signal having signal contributions from multiple users by partially decoding a first codeword obtained from the received signal and transmitted by a first user via a first signal The first signal ts reconstructed based on the partial decoding of the first codeword and canceled from the received signal to yield a reduced-interference signal. A second codeword obtained from the reduced- interference signal and transmitted by the first user or a second user via a second signal is at least partially decoded. In one embodiment, the first codeword is partially decoded by puncturing one or more coded bits of the first codeword and decoding the first codeword based on the one or more punctured coded bits and estimates of the remaining coded bits.
摘要翻译：通过启用部分解码来减少与多用户接收机中的干扰消除相关联的延迟。根据实施例，通过部分地解码从接收信号获得的并由第一用户经由第一信号发送的第一码字，从具有来自多个用户的信号贡献的接收信号中消除干扰。基于部分解码的第一信号ts 第一码字并从接收信号中消除以产生减小干扰信号。从减少的干扰信号获得并由第一用户或第二用户经由第二信号发送的第二码字被至少部分解码。在一个实施例中，通过对第一码字的一个或多个编码比特进行删截并基于一个或多个穿孔编码比特和剩余编码比特的估计来对第一码字进行解码来对第一码字进行部分解码。

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