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1. 发明申请

US20110007793A1 JOINT TIME/FREQUENCY PROCESSING FOR WIRELESS RECEIVERS 有权
标题翻译：无线接收器的联合时间/频率处理
公开(公告)号：US20110007793A1
公开(公告)日：2011-01-13
申请号：US12500891
申请日：2009-07-10
申请人： Douglas A. Cairns , Andres Reial , Anders Wallen
发明人： Douglas A. Cairns , Andres Reial , Anders Wallen
IPC分类号： H04L27/01
CPC分类号： H04L25/03261 , H04L25/03235
摘要： Channel estimation and/or equalization processing is performed in a wireless receiver in two stages. The first stage involves pre-filtering in the frequency domain to compact a grid-based representation of the net channel. The second stage involves implementing reduced-complexity time domain channel estimation and/or equalization. According to one embodiment, a received signal transmitted over a net channel is processed by pre-filtering the received signal in the frequency domain. The frequency domain pre-filtering compacts an N-tap effective grid-based representation of the net channel into a K-tap compacted grid-based representation of the net channel where K
摘要翻译：信道估计和/或均衡处理在两个阶段中在无线接收机中执行。第一阶段涉及在频域中进行预滤波以压缩网络通道的基于网格的表示。第二阶段涉及实现降低复杂度的时域信道估计和/或均衡。根据一个实施例，通过净频道发送的接收信号通过对频域中的接收信号进行预滤波来处理。频域预滤波将网络通道的N抽头有效网格表示压缩为K

2. 发明授权

US08885560B2 Cellular communication system support for limited bandwidth communication devices 有权
标题翻译：蜂窝通信系统支持有限带宽通信设备
公开(公告)号：US08885560B2
公开(公告)日：2014-11-11
申请号：US13398787
申请日：2012-02-16
申请人： Anders Wallen , Bengt Lindoff , Erik Eriksson , Joakim Axmon , Leif Wilhelmsson
发明人： Anders Wallen , Bengt Lindoff , Erik Eriksson , Joakim Axmon , Leif Wilhelmsson
IPC分类号： H04Q7/00 , H04W48/12 , H04L5/00
CPC分类号： H04W48/12 , H04L5/0053 , H04L5/0091 , H04L5/0094
摘要： A communication system node transmits first control channel information on a control channel that extends over a first bandwidth of a radiofrequency resource. The first control channel information is necessary to enable a first type of communication device, capable of receiving a signal having the first bandwidth, to establish a connection with a host cell. A MIB, occupying a second bandwidth-size part of the first bandwidth, is transmitted. The second bandwidth is smaller than the first bandwidth and is receivable by a second type of communication device having reduced receive bandwidth capabilities. The MIB has a first part comprising first part information necessary to enable the first type of communication device to establish the connection with the host cell, and a second part comprising second part information directly or indirectly enabling the second type of communication device to obtain parameters that enable connection establishment with the host cell.
摘要翻译：通信系统节点在通过射频资源的第一带宽上延伸的控制信道上发送第一控制信道信息。第一控制信道信息对于能够接收具有第一带宽的信号的第一类型的通信设备来建立与主机小区的连接是必要的。占用第一带宽的第二带宽大小部分的MIB被发送。第二带宽小于第一带宽，并且可以由具有降低的接收带宽能力的第二类型的通信设备接收。 MIB具有第一部分，其包括使得第一类型的通信设备能够建立与主机小区的连接所必需的第一部分信息，以及包括第二部分信息的第二部分直接或间接地使第二类型的通信设备获得参数，启用与主机单元的连接建立。

3. 发明授权

US08472535B2 Multi-carrier transmitter back-off estimation 有权
标题翻译：多载波发射机回馈估计
公开(公告)号：US08472535B2
公开(公告)日：2013-06-25
申请号：US12489172
申请日：2009-06-22
申请人： Anders Wallen
发明人： Anders Wallen
IPC分类号： H04K1/10
CPC分类号： H04L27/2614 , H04L5/0066 , H04W52/16 , H04W52/367
摘要： Methods and apparatus taught herein estimate the amount by which to reduce a multi-carrier signal's maximum transmit power based on metrics specific to each carrier of the multi-carrier signal. These carrier-specific metrics may include a maximum-power reduction or cubic metric determined for that carrier as if it would be transmitted alone. In one embodiment, estimation of the required back-off is based on a weighted sum of the carrier-specific metrics, where the weights applied depend on a power ratio. Only a few relatively small look-up tables or simple computations are required in this case: one for obtaining the carrier-specific metrics based on configuration parameters of each carrier, and another for obtaining the weights based on the power ratio. Accordingly, methods and apparatus herein advantageously require less computational complexity and/or memory usage than that needed if estimating the required back-off based on similar metrics obtained for the multi-carrier signal as a whole.
摘要翻译：本文教导的方法和装置基于多载波信号的每个载波特有的度量来估计减少多载波信号的最大发射功率的量。这些载波特定度量可以包括为该载波确定的最大功率降低或立方度量，如同它将被单独传输一样。在一个实施例中，所需退避的估计基于载波特定度量的加权和，其中应用的权重取决于功率比。在这种情况下，仅需要几个相对较小的查找表或简单的计算：一个用于基于每个载波的配置参数获得载波特定度量，另一个用于基于功率比获得权重。因此，本文中的方法和装置有利地需要比基于为整个多载波信号获得的类似度量估计所需的回退所需的更少的计算复杂度和/或存储器使用量。

4. 发明申请

US20100022212A1 Radio Receiver 有权
标题翻译：无线电接收器
公开(公告)号：US20100022212A1
公开(公告)日：2010-01-28
申请号：US12374306
申请日：2007-07-06
申请人： Bengt Lindoff , Anders Wallen
发明人： Bengt Lindoff , Anders Wallen
IPC分类号： H04B1/06
CPC分类号： H04B1/406 , H04L27/2647 , H04W52/26
摘要： A radio receiver adapted to alternatively receive data over a communication channel in a first mode and a second mode. The second mode facilitates reception of data at higher data rates than the first mode. The radio receiver comprises a signal-processing unit and a control unit. The signal processing unit is adapted to determine a quality condition of the communication channel. The control unit is adapted to determine, based on the quality condition, whether the communication channel facilitates operation in the second mode and assess at least one configuration condition, one of the at least one configuration condition being that the communication channel is determined to facilitate operation in the second mode. The control unit is further adapted to configure the radio receiver to operate in the second mode when all of at least one configuration condition are fulfilled or to operate in the first mode otherwise. A method for controlling the radio receiver is also disclosed.
摘要翻译：一种适于在第一模式和第二模式中通过通信信道交替地接收数据的无线电接收机。第二模式有助于以比第一模式更高的数据速率接收数据。无线电接收机包括信号处理单元和控制单元。信号处理单元适于确定通信信道的质量状况。控制单元适于基于质量条件确定通信信道是否便于在第二模式中的操作并且评估至少一个配置条件，所述至少一个配置条件中的一个是确定通信信道以促进操作在第二模式。所述控制单元进一步适于将所述无线电接收机配置为在所有至少一个配置条件满足时以第二模式操作或者否则以第一模式操作。还公开了一种用于控制无线电接收机的方法。

5. 发明申请

US20100239031A1 Multi-Carrier Transmitter Back-Off Estimation 有权
标题翻译：多载波发射机后退估计
公开(公告)号：US20100239031A1
公开(公告)日：2010-09-23
申请号：US12489172
申请日：2009-06-22
申请人： Anders Wallen
发明人： Anders Wallen
IPC分类号： H04B7/02 , H04B7/005
CPC分类号： H04L27/2614 , H04L5/0066 , H04W52/16 , H04W52/367
摘要： Methods and apparatus taught herein estimate the amount by which to reduce a multi-carrier signal's maximum transmit power based on metrics specific to each carrier of the multi-carrier signal. These carrier-specific metrics may include a maximum-power reduction or cubic metric determined for that carrier as if it would be transmitted alone. In one embodiment, estimation of the required back-off is based on a weighted sum of the carrier-specific metrics, where the weights applied depend on a power ratio. Only a few relatively small look-up tables or simple computations are required in this case: one for obtaining the carrier-specific metrics based on configuration parameters of each carrier, and another for obtaining the weights based on the power ratio. Accordingly, methods and apparatus herein advantageously require less computational complexity and/or memory usage than that needed if estimating the required back-off based on similar metrics obtained for the multi-carrier signal as a whole.
摘要翻译：本文教导的方法和装置基于多载波信号的每个载波特有的度量来估计减少多载波信号的最大发射功率的量。这些载波特定度量可以包括为该载波确定的最大功率降低或立方度量，如同它将被单独传输一样。在一个实施例中，所需退避的估计基于载波特定度量的加权和，其中应用的权重取决于功率比。在这种情况下，仅需要几个相对较小的查找表或简单的计算：一个用于基于每个载波的配置参数获得载波特定度量，另一个用于基于功率比获得权重。因此，本文中的方法和装置有利地需要比基于为整个多载波信号获得的类似度量估计所需的回退所需的更少的计算复杂度和/或存储器使用量。

6. 发明申请

US20100128829A1 Carrier Separation Frequency Error Adjustment for UL Multiple Carrier Operation 有权
标题翻译： UL多载波操作的载波分离频率误差调整
公开(公告)号：US20100128829A1
公开(公告)日：2010-05-27
申请号：US12419675
申请日：2009-04-07
申请人： Oskar Drugge , Anders Wallen
发明人： Oskar Drugge , Anders Wallen
IPC分类号： H04L7/00
CPC分类号： H04L27/0014 , H04L2027/0018
摘要： One or more carrier signals in a multiple-carrier UE transmitter are frequency-adjusted to account for an estimated error in the separation frequency between the transmitted carrier signals. The adjustment is applied when generating the UL signals for the respective carrier frequencies in digital baseband of the UE. In one embodiment, one or more of the modulators that apply the carrier separation frequency additionally apply a frequency correction. In another embodiment, first mixers apply the carrier separation frequency to each different carrier signal. One or more carrier signal paths include a second mixer applying a frequency correction to the carrier signal. The RF modulation frequency may also be adjusted to partially compensate for the estimated carrier separation frequency error.
摘要翻译：在多载波UE发射机中的一个或多个载波信号进行频率调整，以考虑发射载波信号之间的分离频率中的估计误差。当为UE的数字基带中的各个载波频率生成UL信号时，进行调整。在一个实施例中，施加载波分离频率的一个或多个调制器另外应用频率校正。在另一个实施例中，第一混频器将载波分离频率应用于每个不同的载波信号。一个或多个载波信号路径包括对载波信号施加频率校正的第二混频器。也可以调整RF调制频率以部分地补偿估计的载波分离频率误差。

7. 发明申请

US20090069057A1 Power-Aware Link Adaptation with Variable Bandwidth Allocation 有权
标题翻译：具有可变带宽分配的功率感知链路适配
公开(公告)号：US20090069057A1
公开(公告)日：2009-03-12
申请号：US11853068
申请日：2007-09-11
申请人： Jacobus Cornelis Haartsen , Bengt Lindoff , Anders Wallen
发明人： Jacobus Cornelis Haartsen , Bengt Lindoff , Anders Wallen
IPC分类号： H04B1/38 , H04M1/00
CPC分类号： H04W72/085 , H04W52/0232 , H04W52/0245 , H04W72/0406 , H04W72/087 , Y02D70/1262 , Y02D70/22
摘要： Methods and apparatus are disclosed for reducing mobile terminal energy consumption during data transmissions by allocating resources and adapting link parameters in an energy-aware manner, based on throughput requirements and prevailing signal propagation conditions. A combination of transmit parameters designed to minimize the total energy consumed during data transmission is selected based on a throughput requirement and a path loss associated with a data transmission by a mobile terminal. The combination of transmit parameters includes a bandwidth allocation and may also include a modulation format, coding scheme, and transmit power setting, as well as parameters relating to multiple-antenna transmit schemes. The bandwidth allocation may correspond to a number of sub-carriers of an OFDM signal, or may correspond to a number of resource blocks in an SC-FDMA signal.
摘要翻译：公开了用于通过基于吞吐量要求和主要信号传播条件以能量感知方式分配资源和调整链路参数来减少数据传输期间的移动终端能量消耗的方法和装置。基于吞吐量要求和与移动终端的数据传输相关联的路径损耗来选择被设计为最小化在数据传输期间消耗的总能量的发射参数的组合。发射参数的组合包括带宽分配，并且还可以包括调制格式，编码方案和发射功率设置，以及与多天线发射方案有关的参数。带宽分配可以对应于OFDM信号的子载波的数量，或者可以对应于SC-FDMA信号中的资源块的数量。

8. 发明申请

US20090067355A1 Power-Aware Link Adaptation in a Wideband CDMA System 有权
标题翻译：宽带CDMA系统中的功率感知链路适配
公开(公告)号：US20090067355A1
公开(公告)日：2009-03-12
申请号：US11854135
申请日：2007-09-12
申请人： Jacobus Cornelis Haartsen , Bengt Lindoff , Anders Wallen
发明人： Jacobus Cornelis Haartsen , Bengt Lindoff , Anders Wallen
IPC分类号： G08C17/00 , H04B7/216
CPC分类号： H04W72/08 , H04W52/0232 , H04W52/0245 , Y02D70/12 , Y02D70/22
摘要： Methods and apparatus are disclosed for reducing mobile terminal energy consumption during data transmissions by allocating link resources and adapting link parameters in an energy-aware manner, based on throughput requirements and prevailing channel conditions. A combination of transmit parameters that includes a transmit channelization scheme and is designed to minimize the total energy consumed during data transmission is selected based on a throughput requirement and one or more channel conditions associated with the data transmission. The channelization scheme includes a number of subchannels to be used and subchannel configuration parameters for each subchannel, such as spreading codes, spreading factors, and subchannel power levels. The combination of transmit parameters may also include a modulation format, coding scheme, and transmit power setting, as well as parameters relating to multiple-antenna transmit schemes.
摘要翻译：公开了用于通过基于吞吐量要求和主要信道条件以能量感知方式分配链路资源和适配链路参数来减少数据传输期间的移动终端能量消耗的方法和装置。基于吞吐量要求和与数据传输相关联的一个或多个信道条件来选择包括发射信道化方案并被设计为使数据传输期间消耗的总能量最小化的发射参数的组合。信道化方案包括要使用的多个子信道和每个子信道的子信道配置参数，例如扩展码，扩频因子和子信道功率电平。发射参数的组合还可以包括调制格式，编码方案和发射功率设置以及与多天线发射方案有关的参数。

9. 发明申请

US20070133721A1 Method and apparatus for phase-noise compensation in digital receivers 有权
标题翻译：数字接收机中相位噪声补偿的方法和装置
公开(公告)号：US20070133721A1
公开(公告)日：2007-06-14
申请号：US11301100
申请日：2005-12-12
申请人： Anders Wallen , Leif Wilhelmsson
发明人： Anders Wallen , Leif Wilhelmsson
IPC分类号： H03D1/04
CPC分类号： H04L27/2271 , H04L27/2331 , H04L2027/0067 , H04L2027/0069
摘要： A method and apparatus for compensation of noise in a received signal includes receiving a received signal comprised of a sum of a transmitted signal and a disturbance signal in a demodulator, summing the received signal and a compensation signal to produce a demodulation signal, determining a transmitted symbol based upon the demodulation signal, determining an error signal by calculating a difference between the demodulation signal and the determined transmitted symbol, and determining the compensation signal from the error signal using a model-based disturbance suppression control process. In at least one embodiment, the model-based disturbance suppression control process is a linear disturbance model control process.
摘要翻译：用于补偿接收信号中的噪声的方法和装置包括在解调器中接收由发射信号和干扰信号之和构成的接收信号，对接收信号和补偿信号进行求和以产生解调信号，基于解调信号的符号，通过计算解调信号和确定的发送符号之间的差来确定误差信号，以及使用基于模型的干扰抑制控制处理从误差信号确定补偿信号。在至少一个实施例中，基于模型的干扰抑制控制过程是线性干扰模型控制过程。

10. 发明申请

US20120008563A1 Power Backoff for Multi-Carrier Uplink Transmissions 有权
标题翻译：多载波上行链路传输的功率回退
公开(公告)号：US20120008563A1
公开(公告)日：2012-01-12
申请号：US13256132
申请日：2009-12-28
申请人： Klas Johansson , Torgny Palenius , Kai-Erik Sunell , Anders Wallen
发明人： Klas Johansson , Torgny Palenius , Kai-Erik Sunell , Anders Wallen
IPC分类号： H04W88/02 , H04W88/08
CPC分类号： H04W52/146 , H04W52/36
摘要： Teachings presented herein provide reduced computational complexity and/or memory requirements for a mobile terminal to determine the power backoff required for a multi-carrier uplink signal. In particular, the mobile terminal determines whether its power headroom falls below a pre-defined power headroom threshold, indicating that it is headroom limited. If so, it5 quantizes power allocated to each carrier of the multi-carrier uplink signal according to a pre-defined quantization policy. In doing so, the mobile terminal thereby reduces the possible configurations that may be selected for the multi-carrier uplink signal. Thus, in one embodiment, the mobile terminal stores the required backoff in a look-up table for only the configurations that may be selected when the mobile terminal is headroom limited. This relieves 10 the memory requirements of the mobile terminal as compared to storing the required backoff for all possible configurations of the multi-carrier uplink signal.
摘要翻译：本文提出的教学提供了移动终端降低的计算复杂度和/或存储器要求，以确定多载波上行链路信号所需的功率回退。特别地，移动终端确定其功率余量是否低于预定义的功率余量阈值，指示其净空限制。如果是，则它根据预定义的量化策略量化分配给多载波上行链路信号的每个载波的功率。在这样做时，移动终端因此减少了可能为多载波上行链路信号选择的可能配置。因此，在一个实施例中，移动终端仅在移动终端被限制空间时可以选择的配置在查找表中存储所需的退避。与存储针对多载波上行链路信号的所有可能配置的所需退避相比，这减轻了移动终端的存储器要求。

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