公开(公告)号：US09641360B2

公开(公告)日：2017-05-02

申请号：US13163270

申请日：2011-06-17

Applicant: Ning He ,  Stephen J. Grant ,  Andres Reial

Inventor： Ning He ,  Stephen J. Grant ,  Andres Reial

IPC: H04W4/00 ,  H04L25/03 ,  H04L27/26 ,  H04W72/04 ,  H04W88/12

CPC classification number: H04L25/03866 ,  H04L27/2655 ,  H04W72/0466 ,  H04W72/048 ,  H04W88/12

Abstract: A base station herein assists a radio network controller (RNC) to allocate scrambling codes in a cell. The base station's assistance advantageously permits the RNC to allocate different length scrambling codes to different mobile terminals (or downlink carriers) in the cell. Specifically, the base station determines a preference for whether the length of a scrambling code to be allocated to each terminal or carrier should be short or long, based on whether uplink communications transmitted by the terminal, or downlink communications transmitted over the carrier, are to be processed with a high-complexity receiver or a low-complexity receiver. The RNC receives these preferences from the base station and takes them into account in order to allocate either a short scrambling code or a long scrambling code to each terminal or downlink carrier in the cell. The RNC then propagates the scrambling code allocations throughout the cell.

公开(公告)号：US09209937B2

公开(公告)日：2015-12-08

申请号：US11944773

申请日：2007-11-26

Applicant: Lennart Andersson ,  Andres Reial

Inventor： Lennart Andersson ,  Andres Reial

IPC: H04L1/00 ,  H04L1/20 ,  H03M13/37 ,  H03M13/41 ,  H03M13/00 ,  H04L1/18

CPC classification number: H04L1/0072 ,  H03M13/3738 ,  H03M13/3776 ,  H03M13/41 ,  H03M13/653 ,  H04L1/0054 ,  H04L1/1812 ,  H04L1/20 ,  H04L1/208

Abstract: Methods and apparatus are disclosed for detecting a control channel message transmitted on one of a plurality of shared control channels and targeted to a wireless receiver. In an exemplary method, messages transmitted over a plurality of shared control channels are decoded, and at least one likelihood metric is determined for each of the decoded messages. A best candidate is selected from the decoded messages, based on the likelihood metrics, and the at least one likelihood metric for the best candidate is compared to corresponding likelihood metrics for the messages other than the best candidate to determine whether the best candidate is a valid message. Wireless communication receivers configured correspondingly are also disclosed.

Abstract translation: 公开了用于检测在多个共享控制信道之一上发送并针对无线接收机的控制信道消息的方法和装置。 在示例性方法中，解码在多个共享控制信道上发送的消息，并且为每个解码的消息确定至少一个似然度量。 基于似然度量从解码的消息中选择最佳候选者，并且将最佳候选的至少一个似然度量与除最佳候选之外的消息的对应似然度量进行比较，以确定最佳候选是否是有效的 信息。 还公开了相应配置的无线通信接收机。

公开(公告)号：US08938038B2

公开(公告)日：2015-01-20

申请号：US13364856

申请日：2012-02-02

Applicant: Andres Reial ,  Anders Wallén

Inventor： Andres Reial ,  Anders Wallén

IPC: H03D3/00

CPC classification number: H04J11/005 ,  H04B1/7103 ,  H04B1/7107 ,  H04J11/0059

Abstract: Techniques for expanding the set of addressable interfering signals in an interference cancelling receiver are described, where the task of control message detection from interfering cells is integrated in an iterative receiver process where increasingly better a priori information on the received data signals from the previous iteration is used to detect additional control messages and successively grow the set of interfering signals included in the receiver's interference mitigation processing. In an example method, first estimated symbols for a desired signal are generated. A control channel corresponding to a first interfering signal is detected, where said detecting is based on the first estimated symbols. Signal characteristics information for the first interfering signal is then derived from the detected control channel signal, and used to generate second estimated symbols for the desired signal, using an interference-mitigation technique to mitigate the effects of the interfering signal.

Abstract translation: 描述了用于在干扰消除接收机中扩展可寻址干扰信号集合的技术，其中来自干扰小区的控制消息检测的任务被集成在迭代接收机过程中，其中越来越好的来自先前迭代的接收数据信号的先验信息是 用于检测附加的控制消息并且连续地增加包括在接收机的干扰减轻处理中的干扰信号集合。 在示例性方法中，产生用于期望信号的第一估计符号。 检测对应于第一干扰信号的控制信道，其中所述检测基于第一估计符号。 然后从检测到的控制信道信号导出第一干扰信号的信号特征信息，并且使用干扰减轻技术来产生用于期望信号的第二估计符号，以减轻干扰信号的影响。

公开(公告)号：US08713414B2

公开(公告)日：2014-04-29

申请号：US13358978

申请日：2012-01-26

Applicant: Matthias Kamuf ,  Andres Reial

Inventor： Matthias Kamuf ,  Andres Reial

IPC: H03M13/03

CPC classification number: H04L25/03318 ,  H03M13/2957 ,  H03M13/6505 ,  H03M13/6577 ,  H04L1/005 ,  H04L1/1861 ,  H04L25/03171 ,  H04L25/067

Abstract: In one or more aspects, the present invention improves the efficiency of soft information transfer within a soft-value processing apparatus, by reducing in some sense the “amount” of soft information transferred between constituent processor circuits within the apparatus, without forfeiting or otherwise compromising the transfer of “valuable” soft information. In one example, the soft values produced by a constituent processor circuit are identified as being reliable or unreliable according to a reliability threshold. Some or all of the unreliable values are omitted from a soft value information transfer to another constituent processor circuit, or they are quantized for such transfer. The reduction in memory requirements for soft information transfer advantageously allows the use of lower power, less complex, and less expensive circuitry than would otherwise be required in the apparatus, which may be, as a non-limiting example, a Turbo receiver in a wireless communication device.

Abstract translation: 在一个或多个方面，本发明通过在某种意义上减少在装置内的组成处理器电路之间传送的软信息的“量”来提高软值处理装置内软信息传送的效率，而不会丧失或以其他方式折中 转移“有价值”的软信息。 在一个示例中，由组成处理器电路产生的软值根据可靠性阈值被识别为可靠或不可靠。 从另一个构成处理器电路的软值信息中省略了一部分或全部不可靠的值，也可以对这些值进行量化。 软信息传输的存储器要求的减少有利地允许使用比设备中另外需要的更低功率，更不复杂和更便宜的电路，其可以作为非限制性示例，无线的Turbo接收器 通讯装置

公开(公告)号：US20130114429A1

公开(公告)日：2013-05-09

申请号：US13291900

申请日：2011-11-08

Applicant: Elias Jonsson ,  Andres Reial

Inventor： Elias Jonsson ,  Andres Reial

IPC: H04W24/00

CPC classification number: H04L1/0038 ,  H04L1/0048 ,  H04L1/0061 ,  H04W8/26

Abstract: The present invention includes a method and apparatus for autonomously determining by a first UE the identities (IDs) of one or more other UEs that are operating in or around the same network area as the first UE. More particularly, the first UE determines with a defined reliability the UE ID of an otherwise unknown UE based on receiving and processing an HS-SCCH transmission targeted to the unknown UE. By learning actual UE IDs for one or more other UEs operating in or around the same area as the first UE, the first UE can then properly decode HS-SCCH transmissions to those other UEs, and thereby gain knowledge of the signal structures used for data (HS-PDCH) transmissions to those other UEs. Advantageously, the first UE applies such knowledge in its desired-signal receiver processing, such as for enhancing channel estimation and/or performing structured-signal interference cancellation.

Abstract translation: 本发明包括一种用于由第一UE自主确定在与第一UE相同的网络区域内或周围操作的一个或多个其他UE的身份（ID）的方法和装置。 更具体地，第一UE基于接收和处理针对未知UE的HS-SCCH传输，以确定的可靠性确定另一未知UE的UE ID。 通过学习在与第一UE相同的区域中操作的一个或多个其他UE的实际UE ID，则第一UE然后可以正确地解码对那些其他UE的HS-SCCH传输，从而获得用于数据的信号结构的知识 （HS-PDCH）传输到那些其他UE。 有利地，第一UE在其期望信号接收机处理中应用这样的知识，例如用于增强信道估计和/或执行结构化信号干扰消除。

公开(公告)号：US20120201319A1

公开(公告)日：2012-08-09

申请号：US13020205

申请日：2011-02-03

Applicant: Henrik Asplund ,  Andres Reial ,  Bo Hagerman ,  Fredrik Ovesjö

Inventor： Henrik Asplund ,  Andres Reial ,  Bo Hagerman ,  Fredrik Ovesjö

IPC: H04L1/02

CPC classification number: H04B7/0469 ,  H04B7/0413 ,  H04B7/0473 ,  H04B7/10 ,  H04L1/009 ,  H04L1/0668

Abstract: Controlling the polarization state of signals to be transmitted from a MIMO capable radio base station node to a plurality of user equipment, which radio base station node comprises a precoder unit connecting a first and a second virtual antenna port to a respective first and second transmit antenna port, by the steps of controlling (S10) a relative phase between transmitted signals from the first and second transmit antenna port to provide a predetermined pair of orthogonal polarization states for signals transmitted on the first and second virtual antenna ports, and interchanging (S20) the polarization states of the first and second virtual antenna ports, to provide transmitted polarized signals with alternating polarization states.

Abstract translation: 控制从MIMO能力的无线基站节点发送到多个用户设备的信号的偏振状态，该无线电基站节点包括将第一和第二虚拟天线端口连接到相应的第一和第二发射天线的预编码器单元 端口，通过控制（S10）来自第一和第二发送天线端口的发送信号之间的相对相位的步骤，为在第一和第二虚拟天线端口上发送的信号提供预定的正交极化状态对，并进行交换（S20） 第一和第二虚拟天线端口的极化状态，以提供具有交替偏振态的透射偏振信号。

公开(公告)号：US08229044B2

公开(公告)日：2012-07-24

申请号：US11762982

申请日：2007-06-14

Applicant: Andres Reial ,  Girum Alebachew ,  Elias Jonsson

Inventor： Andres Reial ,  Girum Alebachew ,  Elias Jonsson

IPC: H03K5/01

CPC classification number: H04B1/712 ,  H04B2201/709727

Abstract: The impairment processor described herein uses a look-up table operation to reduce the computational complexity associated with determining an impairment correlation between first and second sample streams for an interference rejection receiver. One exemplary impairment processor iteratively computes multiple partial impairment correlations based on values selected from look-up table(s), and combines the partial impairment correlations to obtain a final impairment correlation between the first and second sample streams. During each iteration, the impairment processor computes a pair of delay offsets corresponding to the respective processing and path delays of the first and second sample streams, computes an index value as a function of a difference between the pair of delay offsets, selects a pre-computed value from the look-up table based on the index value, determines a pulse correlation estimate based on the selected pre-computed value, and determines the partial impairment correlation for that iteration based on the pulse correlation estimate.

Abstract translation: 本文描述的损害处理器使用查找表操作来减少与确定用于干扰抑制接收机的第一和第二采样流之间的损害相关性相关联的计算复杂度。 一个示例性损伤处理器基于从查找表中选择的值迭代地计算多个部分损伤相关性，并组合部分损伤相关性以获得第一和第二样本流之间的最终损害相关性。 在每次迭代期间，损害处理器计算与第一和第二采样流的相应处理和路径延迟相对应的一对延迟偏移，计算作为一对延迟偏移之间的差的函数的索引值， 基于该索引值从查找表计算的值，基于所选择的预先计算的值确定脉冲相关估计，并且基于脉冲相关估计确定该迭代的部分损伤相关性。

公开(公告)号：US08208936B2

公开(公告)日：2012-06-26

申请号：US12204040

申请日：2008-09-04

Applicant: Bengt Lindoff ,  Andres Reial ,  Anders Rosenqvist

Inventor： Bengt Lindoff ,  Andres Reial ,  Anders Rosenqvist

IPC: H04W72/00 ,  H04W4/00 ,  H04W36/00 ,  H04B7/212

CPC classification number: H04L1/0026 ,  H04W72/082

Abstract: Methods and apparatus for adaptively transmitting data in a wireless communication network are disclosed, in which channel conditions between a mobile terminal and two or more base stations in an active set are evaluated and used to select a transmission mode from a set of available downlink transmission modes including a non-interference-coordinated point-to-point transmission mode as well as at least one of a multi-cell single-frequency-network transmission mode and an interference-coordinated point-to-point transmission mode. Using the dynamic transmission mode selection described herein, a higher cell-edge throughput in HSDPA systems may be achieved.

Abstract translation: 公开了一种用于在无线通信网络中自适应地发送数据的方法和装置，其中评估活动集中的移动终端与两个或多个基站之间的信道条件，并用于从一组可用的下行链路传输模式中选择传输模式 包括无干扰协调的点对点传输模式以及多小区单频网传输模式和干扰协调点对点传输模式中的至少一个。 使用本文描述的动态传输模式选择，可以实现HSDPA系统中较高的小区边缘吞吐量。

公开(公告)号：US20110206167A1

公开(公告)日：2011-08-25

申请号：US12709239

申请日：2010-02-19

Applicant: Anders Rosenqvist ,  Douglas A. Cairns ,  Andres Reial

Inventor： Anders Rosenqvist ,  Douglas A. Cairns ,  Andres Reial

IPC: H04B1/10

CPC classification number: H04L25/0226 ,  H04L25/0238

Abstract: A signal-to-interference estimate is generated using unknown data symbols in place of or in addition to pilot symbols. Data received over a data channel (traffic channel or control channel) are collected. The data symbols are then used to compute an observation metric based on deviations of the data symbols from a predetermined set of possible data symbols, wherein one of the data symbols and symbol constellation is normalized. A data channel signal-to-interference ratio is then computed based on the observation metric.

Abstract translation: 使用未知数据符号代替导频符号或除导频符号之外，生成信号到干扰估计。 通过数据通道（业务信道或控制信道）接收的数据被收集。 然后，数据符号用于基于来自预定的一组可能的数据符号的数据符号的偏差来计算观测度量，其中数据符号和符号星座之一被归一化。 然后基于观测度量计算数据信道信号干扰比。

公开(公告)号：US20110206107A1

公开(公告)日：2011-08-25

申请号：US12709294

申请日：2010-02-19

Applicant: Gregory E. Bottomley ,  Anders Rosenqvist ,  Andres Reial

Inventor： Gregory E. Bottomley ,  Anders Rosenqvist ,  Andres Reial

IPC: H04L27/06 ,  H04B17/00

CPC classification number: H04B17/336

Abstract: An SIR estimate of a communication signal in a wireless communication system receiver is calculated based on soft bit values output by a nonlinear detector. The average amplitude of the detector output soft bits is estimated. The average power of the detector output soft bits is estimated, e.g., as a mean-square or variance. An SIR of the communication signal is estimated based on the soft bit amplitude and power estimates. In particular, the SIR is estimated as the ratio of the square of soft bit amplitude to the difference between the mean square soft bit power and the square of soft bit amplitude, or the ratio of the square of soft bit amplitude to the variance. In either case, the SIR estimate may be scaled to obtain the desired units. The communication signal may be a received signal, or a simulated signal generated using channel estimates obtained from, e.g., a pilot channel.

Abstract translation: 基于由非线性检测器输出的软比特值来计算无线通信系统接收机中的通信信号的SIR估计。 估计检测器输出软比特的平均幅度。 估计检测器输出软比特的平均功率例如作为均方或方差。 基于软比特幅度和功率估计来估计通信信号的SIR。 特别地，SIR被估计为软比特幅度的平方与平均软比特功率和软比特幅度的平方之间的差或软比特幅度的平方与差异的比的比率。 在任一情况下，可以缩放SIR估计以获得所需单位。 通信信号可以是接收信号，或使用从例如导频信道获得的信道估计而产生的模拟信号。