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1. 发明授权

EP2412105B1 SIGNAL RECEPTION WITH ADJUSTABLE PROCESSING DELAY PLACEMENT 失效转让
公开(公告)号：EP2412105B1
公开(公告)日：2018-10-03
申请号：EP10716039.2
申请日：2010-03-22
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： CAIRNS, Douglas, A. , UESAKA, Kazuyoshi , JONSSON, Elias
IPC分类号： H04B1/707 , H04L25/03
CPC分类号： H04B1/7115 , H04B1/7117 , H04B2201/709727 , H04L25/0216
摘要： The placement of processing delays may be adjusted to facilitate signal reception. In an example embodiment, a composite signal having multiple signal images corresponding to multiple reception delays is received. A root-mean-square (RMS) delay spread is ascertained for the multiple reception delays that correspond to the multiple signal images of the composite signal. A set of temporal points is produced responsive to the RMS delay spread. Multiple processing delays are placed based on the set of temporal points. In different example implementations, the set of temporal points (e.g., of a grid) may be produced by adjusting a spacing between temporal points, by adjusting a total number of temporal points in the set, or by changing a center location of the set. The spacing and number of points may be adjusted responsive to the RMS delay spread. The center location may be adjusted responsive to at least one calculated delay.

2. 发明公开

EP3152851A1 DETERMINATION OF CHANNEL CONDITION INDICATION 有权
标题翻译： BESTIMMUNG DER KANALZUSTANDSANGABE
公开(公告)号：EP3152851A1
公开(公告)日：2017-04-12
申请号：EP14727564.8
申请日：2014-06-03
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： JONSSON, Elias , BERGMAN, Göran , KUPPUSAMY, Vijaykumar , MURATA, Yoshitaka
IPC分类号： H04L1/00
CPC分类号： H04B1/7103 , H04B1/1027 , H04L1/0016 , H04L1/0026 , H04W24/10
摘要： A method is provided of a wireless communication device operating in connection with a cellular communication system providing a serving cell and one or more interfering cells. A signal is received comprising symbols of the serving cell transmitted in a downlink channel and symbols of the one or more interfering cells and a first function of a signal-to-interference ratio of the received signal is calculated. One or more of the interfering cells are selected as dominant interfering cells based on a respective average power of reference symbols of the one or more interfering cells in the received signal, an average power of demodulated symbols of the serving cell in the received signal and a respective average power of demodulated symbols of each of the dominant interfering cells in the received signal are determined. A metric value is calculated based on the average power of demodulated symbols of the serving cell and on the respective average power of demodulated symbols of each of the dominant interfering cells, a channel condition indication is determined based on the metric value and the first function of the signal-to-interference ratio of the received signal, and the channel condition indication is transmitted to the cellular communication system, thereby providing downlink channel condition information to a network node. A method of creating a look-up table for mapping the first function and the metric value to the channel condition indication is also disclosed along with computer program products, arrangements and wireless communication devices corresponding to the methods.
摘要翻译：提供了一种与提供服务小区和一个或多个干扰小区的蜂窝通信系统相联系的无线通信设备的方法。接收包括在下行链路信道中发送的服务小区的符号的信号，并且计算一个或多个干扰小区的符号和接收信号的信号干扰比的第一函数。基于接收信号中的一个或多个干扰小区的参考符号的相应平均功率，将接收到的信号中的服务小区的解调符号的平均功率和确定接收信号中每个主要干扰小区的解调符号的相应平均功率。基于服务小区的解调符号的平均功率和每个主要干扰小区的解调符号的相应平均功率来计算度量值，基于度量值和第一功能确定信道状态指示接收信号的信号干扰比和信道状态指示被发送到蜂窝通信系统，从而向网络节点提供下行链路信道条件信息。还公开了一种创建用于将第一功能和度量值映射到信道条件指示的查找表以及对应于该方法的计算机程序产品，布置和无线通信设备的方法。

3. 发明授权

EP2401831B1 Method and apparatus for allocating processing delays in multi-carrier systems 有权
标题翻译：用于分配在多载波系统中处理延迟的方法和装置
公开(公告)号：EP2401831B1
公开(公告)日：2015-06-10
申请号：EP10708747.0
申请日：2010-02-24
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： JONSSON, Elias , DRUGGE, Oskar
IPC分类号： H04L5/00 , H04L5/02
CPC分类号： H04L25/03019 , H04B1/7115 , H04B1/7117 , H04L25/0206 , H04L2025/03414

4. 发明公开

EP2583530A1 LOW LATENCY CHANNEL ESTIMATION FOR DOWNLINK MIMO 有权
标题翻译：估算低延迟下行MIMO信道
公开(公告)号：EP2583530A1
公开(公告)日：2013-04-24
申请号：EP10853050.2
申请日：2010-07-14
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： HU, Yang , JONSSON, Elias
IPC分类号： H04W80/00
CPC分类号： H04W24/02 , H04J13/0003 , H04J13/004 , H04J13/0048 , H04J13/18 , H04L5/0016 , H04L5/0051 , H04L25/022 , H04L25/0224 , H04L25/0232 , H04L27/2613 , H04L27/262 , H04W48/08 , H04W72/042
摘要： When more than two layers are multiplexed in one CDM group, length-4 OCC has to be used across both clusters in one subframe. This means that slot-by-slot channel estimation according to conventional schemes cannot be exploited and Doppler impact cannot be well overcome. By introducing virtual variables and virtual channel samples that are used in processing two time slots in a subframe independently and applying a frequency domain filter based on the virtual variables and then performing postprocessing based on virtual channel samples, slot-by-slot processing is possible to reduce latency and overcome Doppler impact. Code de- spreading of length-4 OCC is no longer processed in time domain, but in frequency domain with two adjacent CDM subgroups. As a result, the frequency domain filtering can start earlier whereby detection latency and processing time for OCC of length longer than 2 is reduced. It can also be used for the length-2 OCC.

5. 发明授权

EP1547267B1 SYSTEMS, METHODS OF OPERATING, AND COMPUTER PROGRAM PRODUCTS FOR SELECTING DELAYS FOR A RAKE RECEIVER BASED ON SIGNAL TO INTERFENCE RATIOS AND/OR POWERS 有权
标题翻译：系统，操作和计算机程序产品的选择对于RAKE接收机时滞的方法基于信号/故障条件和/或服务
公开(公告)号：EP1547267B1
公开(公告)日：2012-04-25
申请号：EP03788911.0
申请日：2003-09-19
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： JONSSON, Elias
IPC分类号： H04B1/707
CPC分类号： H04B1/7113 , H04B1/7117
摘要： Delays for a RAKE receiver are selected by searching a plurality of multi-paths to select a set of multi-path delays associated with the highest signal to interference ratios (SIRs) and/or power values. The respective SIR values and/or power values for the multi-path delays are averaged over a time interval and the averaged SIR values and/or power values are multiplied by a scaling factor so as to reduce the averaged SIR values and/or power values. Those multi-path delays from the set of multi-path delays and a previous set of multi-path delays that have SIR values and/or power values greater than a threshold value are selected to generate a monitored set of multi-path delays. The SIR values and/or power values associated with the monitored set of multi-path delays are filtered and at least one multi-path delay from the monitored set of multi-path delays is eliminated as being correlated with another multi-path delay of the monitored set of multi-path delays to generate an output set of multi-path delays. The output set of multi-path delays are provided to a RAKE receiver.

6. 发明公开

EP2127113A2 METHOD AND APPARATUS FOR IMPAIRMENT CORRELATION ESTIMATION IN MIMO SYSTEMS 审中-公开
标题翻译：用于MIMO系统中的减损相关估计的方法和装置
公开(公告)号：EP2127113A2
公开(公告)日：2009-12-02
申请号：EP08716890.2
申请日：2008-02-15
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： JONSSON, Elias , REIAL, Andres
IPC分类号： H04B1/707 , H04B7/08
CPC分类号： H04W72/12 , H04B1/7103 , H04B1/712 , H04B7/0615 , H04B7/0669 , H04B7/0697 , H04B2201/70701 , H04B2201/709727 , Y02D70/40 , Y02D70/444
摘要： The teachings herein disclose methods and apparatus that simplify impairment correlation estimation for received signal processing, based on determining, for any given processing interval, which impairment contributors should be considered in the estimation of overall received signal impairment correlations. These simplifications reduce computational processing requirements, allowing reduced circuit complexity and/or reduced operating power, and improve receiver performance. A corresponding transmitter and transmission method include transmitting multiple information streams to targeted receivers according to ongoing scheduling, and controlling the ongoing scheduling to reduce the number of impairment contributors considered in impairment correlation estimation at the targeted receivers. In one embodiment, a receiver identifies which impairment contributors to consider based on receiving control information. In another embodiment, the receiver identifies the impairment contributors to consider based on background processing, e.g., background determination of parametric model fitting parameters for a plurality of impairment contributors, and observing those model fitting parameters over time.
摘要翻译：本文的教导公开了基于对于任何给定的处理间隔确定在整体接收信号损害相关性的估计中应该考虑哪些减值贡献者来简化接收信号处理的损害相关性估计的方法和设备。这些简化降低了计算处理要求，从而降低了电路复杂性和/或降低了工作功率，并提高了接收器的性能。相应的发射机和传输方法包括根据正在进行的调度将多个信息流传输到目标接收机，并且控制正在进行的调度以减少目标接收机处的减损相关性估计中考虑的减值贡献者的数量。在一个实施例中，接收者基于接收控制信息来识别要考虑哪些减值贡献者。在另一个实施例中，接收机基于背景处理识别要考虑的减值贡献者，例如，多个减值贡献者的参数模型拟合参数的背景确定，以及随时间观察那些模型拟合参数。

7. 发明授权

EP1634383B1 FILTERING MULTIPATH PROPAGATION DELAY VALUES FOR USE IN A MOBILE COMMUNICATIONS SYSTEM 有权
标题翻译：多重扩展延迟值过滤用在移动KOMMUIKATIONSSYTEM
公开(公告)号：EP1634383B1
公开(公告)日：2007-08-15
申请号：EP04735885.8
申请日：2004-06-03
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ)
发明人： JONSSON, Elias , WATABE, Hiroaki
IPC分类号： H04B1/707 , H04B7/26
CPC分类号： H04B1/7083 , H04B1/7113 , H04B1/7117
摘要： A time slot boundary of an unknown cell in a telecommunications system is identified by correlating a received signal with a known code over a range of delay values for each of one or more time slots, wherein the known code is used by all cells in the telecommunications system. Only for each of the delay values that are not associated with a known cell, correlation values obtained at each of the one or more time slots are accumulated. The time slot boundary is identified by determining which of the delay values is associated with a highest accumulated correlation value. One or more stored monitored delay sets may be used to determine which delay values are not associated with a known cell. The one or more stored monitored delay sets may be filtered using delay information obtained over a period of time.

8. 发明公开

EP1723732A1 METHOD AND APPARATUS FOR PARAMETER ESTIMATION IN A GENERALIZED RAKE RECEIVER 审中-公开
标题翻译：方法和设备，用于通用RAKE接收机参数估算
公开(公告)号：EP1723732A1
公开(公告)日：2006-11-22
申请号：EP05715821.4
申请日：2005-03-08
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ)
发明人： CAIRNS, Douglas, A. , BOTTOMLEY, Gregory, E. , WANG, Yi-Pin, Eric , FULGHUM, Tracy , JONSSON, Elias
IPC分类号： H04B1/707
CPC分类号： H04B1/712 , H04B1/7103 , H04B2201/709727
摘要： Exemplary received signal processing may be based on maintaining a model of received signal impairment correlations, wherein each term. of the model is updated periodically or as needed based on measuring impairments for a received signal of interest. An exemplary model comprises an interference impairment term scaled by a first model fitting parameter, and a noise impairment term scaled by a second model fitting parameters. The model terms may be maintained based on current channel estimates and delay information and may be fitted to measured impairment by adapting the model fitting parameters.based on the measured impairment. The modeled received signal impairment correlations may be used to compute RAKE combining weights for received signal processing, or to compute Signal-to-Interference (SIR) estimates. Combined or separate models may be used for multiple received signals. As such, the exemplary modeling is extended to soft handoff, multiple antennas, and other diversity situations.

9. 发明公开

EP1547273A1 METHODS, SYSTEMS AND COMPUTER PROGRAM PRODUCTS FOR REQUESTING RECEIVED POWER LEVELS BASED ON RECEIVED BLOCK ERROR RATES UTILIZING AN ANTI-WINDUP AND/OR EMERGENCY PROCEDURE 有权
标题翻译：方法，系统和计算机程序产品请求接收性能水平基于在接收误块率通过使用抗饱和和/或紧急程序
公开(公告)号：EP1547273A1
公开(公告)日：2005-06-29
申请号：EP03757873.9
申请日：2003-09-19
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： JONSSON, Elias , SENHAJI, Youssef , TRIANTAFILLIDIS, Dimitrios
IPC分类号： H04B7/005
CPC分类号： H04W52/12 , H04W52/20
摘要： A reference signal to interference ratio (SIR) value for use in requesting changes in a transmitted power level of a received signal of a communications channel is determined based on a current estimated block error rate of the communications channel, a reference block error rate and a measured SIR value of the received signal of the communications channel. Anti-windup procedures for updating the error signal, anti-windup procedures for updating a block error rate used in updating the reference SIR value and emergency procedures are also provided. Mobile terminals and base stations utilizing such procedures are also provided.

10. 发明公开

EP1456968A1 POWER CONTROL IN MOBILE RADIO COMMUNICATIONS SYSTEMS 有权
标题翻译：发射功率控制在移动通信系统
公开(公告)号：EP1456968A1
公开(公告)日：2004-09-15
申请号：EP02791844.0
申请日：2002-12-18
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： JONSSON, Elias
IPC分类号： H04B7/005
CPC分类号： H04W52/125 , H04W52/54
摘要： A power control unit (500) for a power control system in a mobile communication system, the power control unit (500) comprising an inner power control loop element (503, 507), which generates a transmit power control command (504), and an outer power control loop element (516) connected to the inner power control loop element (503, 507), the outer power control loop element (516) being configured for providing a target value (506) to the inner power control loop element (503, 507). The outer power control loop element (516) comprises a soft information estimator (509) connected to at least one outer loop regulator (501, 502), wherein the soft information estimator (509) is configured to provide a soft information estimate (510) to the at least one outer loop regulator (503).

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