公开(公告)号：WO2009000908A2

公开(公告)日：2008-12-31

申请号：PCT/EP2008/058243

申请日：2008-06-27

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  REIAL, Andres ,  ANDERSSON, Lennart

Inventor： REIAL, Andres ,  ANDERSSON, Lennart

IPC: H04L1/00

CPC classification number: H04L1/0038 ,  H04L1/0046 ,  H04L1/1812 ,  H04L1/1829

Abstract: The number of blind decoding operations in a wireless communication receiver is reduced. In one embodiment, a candidate set of transport formats is formed by eliminating one or more allowed transport formats, thus reducing the number of decode operations to be performed. In another embodiment, a received data transmission is partially decoded according to each of a plurality of transport formats, and decode quality metrics associated with each transport format are inspected. Only the transport formats yielding sufficiently high quality metrics are utilized to fully decode the transmission. In other embodiments, upon failure to successfully decode a received transmission, it is assumed to be a retransmission with a missed control transmission, and one or more transport formats specifying the position of a previous transmission in a buffer are added to the candidate set of transport formats. The received retransmission and previously received transmission are then HARQ combined and decoded.

Abstract translation: 减少无线通信接收机中的盲解码操作的数量。 在一个实施例中，通过消除一个或多个允许的传输格式来形成候选传输格式集合，从而减少要执行的解码操作的数量。 在另一个实施例中，根据多种传输格式中的每一种对接收的数据传输进行部分解码，并检查与每种传输格式相关联的解码质量度量。 仅使用产生足够高的质量度量的传输格式来完全解码传输。 在其他实施例中，在成功解码所接收的传输失败之后，假定是具有错过控制传输的重传，并且将指定缓冲器中的先前传输的位置的一个或多个传输格式添加到候选传输组 格式。 接收到的重传和先前接收的传输然后进行HARQ组合和解码。

公开(公告)号：WO2008104466A3

公开(公告)日：2008-11-27

申请号：PCT/EP2008051887

申请日：2008-02-15

Applicant: ERICSSON TELEFON AB L M ,  JONSSON ELIAS ,  REIAL ANDRES

Inventor： JONSSON ELIAS ,  REIAL ANDRES

IPC: H04B1/707 ,  H04B7/08

CPC classification number: H04W72/12 ,  H04B1/7103 ,  H04B1/712 ,  H04B7/0615 ,  H04B7/0669 ,  H04B7/0697 ,  H04B2201/70701 ,  H04B2201/709727 ,  Y02D70/00 ,  Y02D70/40 ,  Y02D70/444

Abstract: 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.

Abstract translation: 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。

公开(公告)号：WO2007039446A1

公开(公告)日：2007-04-12

申请号：PCT/EP2006/066485

申请日：2006-09-19

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (publ) ,  REIAL, Andres ,  MALM, Peter

Inventor： REIAL, Andres ,  MALM, Peter

IPC: H04B1/707

CPC classification number: H04B1/712 ,  H04B1/7117 ,  H04B2201/70701 ,  H04B2201/709727

Abstract: A method for use in receiving a spread-spectrum signal includes receiving an input signal. The input signal includes a first plurality of multipath components. The method also includes despreading the first plurality of multipath components. The step of despreading includes computing a plurality of corresponding delays. The method also includes computing a plurality of combining weights based, at least in part, on interference correlation between at least two of the first plurality of multipath components, selecting, according to at least one criterion, a subset of the plurality of combining weights, and despreading and combining a second plurality of multipath components using at least one quantity related to the selected plurality of combining weights and a plurality of delays and multipath components corresponding to the plurality of selected combining weights.

Abstract translation: 一种用于接收扩频信号的方法包括接收输入信号。 输入信号包括第一多个多径分量。 该方法还包括解扩第一多个多路径分量。 解扩的步骤包括计算多个对应的延迟。 该方法还包括至少部分地基于第一多个多径分量中的至少两个之间的干扰相关来计算多个组合加权，根据至少一个准则，选择多个组合权重的子集， 以及使用与所选择的多个组合权重相关的至少一个数量和对应于所述多个选择的组合权重的多个延迟和多径分量来解扩和组合第二多个多径分量。

公开(公告)号：WO2006108587A1

公开(公告)日：2006-10-19

申请号：PCT/EP2006/003246

申请日：2006-04-10

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  REIAL, Andres ,  CAIRNS, Douglas, A.

Inventor： REIAL, Andres ,  CAIRNS, Douglas, A.

IPC: H04B17/00 ,  H04B7/005

CPC classification number: H04B17/309 ,  H04B2201/709727 ,  H04W52/223

Abstract: The present invention provides a method and apparatus for generating SIR estimates early in a time interval that include the benefits of interference suppression without requiring the computation of specific interference suppression elements. In particular, the present invention generates an SIR estimate for a RAKE receiver during a current time interval based on channel estimates generated based on the received signal(s). By applying an offset derived during a previous time interval to the RAKE SIR estimate, the present invention generates a second SIR estimate for a generalized RAKE receiver.

Abstract translation: 本发明提供了一种用于在包括干扰抑制的优点的时间间隔早期产生SIR估计的方法和装置，而不需要计算特定的干扰抑制元件。 特别地，本发明基于基于接收到的信号生成的信道估计，在当前时间间隔内产生RAKE接收机的SIR估计。 通过将在先前时间间隔中导出的偏移应用于RAKE SIR估计，本发明为广义RAKE接收机生成第二SIR估计。

公开(公告)号：WO2006061210A1

公开(公告)日：2006-06-15

申请号：PCT/EP2005/013123

申请日：2005-12-07

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (publ) ,  REIAL, Andres

Inventor： REIAL, Andres

IPC: H04B1/707

CPC classification number: H04B1/7115 ,  H04B1/7117 ,  H04B2201/7071

Abstract: A signal-path-selection method in a RAKE receiver includes producing C channel estimates from M received signal paths, determining a plurality of best signal paths using the C produced channel estimates, choosing A signal paths of the plurality of best signal paths in accordance with at least one pre-determined criterion, and combining the A signal paths. C is a measure of channel-estimation capacity of the RAKE receiver. M is greater than C.

Abstract translation: RAKE接收机中的信号路径选择方法包括从M个接收信号路径产生C信道估计，使用C个产生的信道估计来确定多个最佳信号路径，根据该信道估计选择多个最佳信号路径的A个信号路径 至少一个预定标准，并组合A信号路径。 C是RAKE接收机的信道估计容量的度量。 M大于C.

公开(公告)号：WO2004107598A1

公开(公告)日：2004-12-09

申请号：PCT/EP2004/005344

申请日：2004-05-14

Applicant: TELEFONAKTIEBOLAGET L M Ericsson (publ) ,  REIAL, Andres ,  LINDOFF, Bengt

Inventor： REIAL, Andres ,  LINDOFF, Bengt

IPC: H04B1/707

CPC classification number: H04B1/7113 ,  H04B1/7117 ,  H04B17/364 ,  H04B2201/70709

Abstract: Multipath components of a signal transmitted through a time-varying digital radio channel are received with individual delays. The delays (τ) and a magnitudes (g(τ)) of the individual multipath components are estimated, and a search is performed repetitively for new multipath components. Changes are detected in the magnitude (g(τ)) of each individual multipath component for which the individual delay and the magnitude are currently estimated; and a search is triggered for new multipath components in dependence of a change in the magnitude of any one of said currently estimated individual multipath components. In this way, a receiver that can ensure that a search for new paths is initiated before serious degradation occurs in the receiver, is provided. Simultaneously, the power consumption and signal processing resources of the path searcher can be reduced compared to a fixed regular path searcher schedule having a frequency sufficiently high to ensure a similar performance.

Abstract translation: 通过时变数字无线电信道发送的信号的多径分量被接收到具有各种延迟。 估计单个多径分量的延迟（τ）和幅度（g（τ）），并且对于新的多径分量重复执行搜索。 在当前估计各个延迟和幅度的每个单独的多径分量的幅度（g（τ））中检测到变化; 并且根据所述当前估计的单个多路径分量中的任何一个的大小的变化，针对新的多径分量触发搜索。 以这种方式，提供了在接收机中发生严重劣化之前可以确保搜索新路径的接收机被启动。 同时，与具有足够高的频率的固定规则路径搜索器调度相比，可以减少路径搜索器的功耗和信号处理资源，以确保类似的性能。

公开(公告)号：WO2004028020A1

公开(公告)日：2004-04-01

申请号：PCT/EP2003/009782

申请日：2003-09-03

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (publ) ,  ERICSSON, Anders ,  REIAL, Andres ,  PALENIUS, Torgny

Inventor： ERICSSON, Anders ,  REIAL, Andres ,  PALENIUS, Torgny

IPC: H04B1/707

CPC classification number: H04B1/7115 ,  H04L25/0212

Abstract: The delays, associated with multipath components of a signal transmitted on a dedicated channel, are estimated by estimating the delays associated with multipath components of a signal transmitted on a common channel, determining which of the multipath components of the signal transmitted on the common channel correspond to multipath components of the signal transmitted on the dedicated channel, and using the relevant estimated delays as estimates of the delays associated with the respective corresponding multipath components of the signal transmitted on the dedicated channel.

Abstract translation: 与在专用信道上发送的信号的多路径分量相关联的延迟通过估计与在公共信道上发送的信号的多径分量相关联的延迟来估计，确定在公共信道上发送的信号中的哪个多径分量对应于 在专用信道上发送的信号的多路分量，以及使用相关的估计延迟作为与在专用信道上发送的信号的相应的相应多径分量相关联的延迟的估计。

公开(公告)号：WO2004028017A1

公开(公告)日：2004-04-01

申请号：PCT/EP2003/009599

申请日：2003-08-29

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (publ) ,  REIAL, Andres

Inventor： REIAL, Andres

IPC: H04B1/707

CPC classification number: H04B1/7113 ,  H04B1/7117

Abstract: In a robust delay estimator system and method, an average PDP buffer serves as a source of reliable control information to other stages of the delay estimator. The PDP output from every path searcher and tuning finger pass is accumulated in the average PDP buffer, which maintains average PDP estimates for the whole allowable delay spread range. The current (i.e., instantaneous) PDP estimate is then added to the average PDP using an exponential averaging method. The average PDP buffer stores the current PDP estimate and the average PDP estimate, as well as timing and other types of information regarding the estimates. The information in the average PDP provides the necessary information for, and is used to control the operation of, all the individual sub-stages of the delay estimation process.

Abstract translation: 在鲁棒的延迟估计器系统和方法中，平均PDP缓冲器作为延迟估计器的其他级的可靠控制信息的源。 来自每个路径搜索器和调谐手指通道的PDP输出被累积在平均PDP缓冲器中，其维持整个可允许延迟扩展范围的平均PDP估计。 然后使用指数平均方法将当前（即瞬时）PDP估计值加到平均PDP。 平均PDP缓冲器存储当前PDP估计和平均PDP估计，以及关于估计的时间和其他类型的信息。 平均PDP中的信息为延迟估计处理的所有子级提供必要的信息，并用于控制所有子级的操作。

公开(公告)号：WO2012100848A1

公开(公告)日：2012-08-02

申请号：PCT/EP2011/068343

申请日：2011-10-20

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  HE, Ning ,  GRANT, Stephen ,  REIAL, Andres

Inventor： HE, Ning ,  GRANT, Stephen ,  REIAL, Andres

IPC: H04L25/03

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.

Abstract translation: 这里的基站协助无线电网络控制器（RNC）在小区中分配扰码。 基站的帮助有利地允许RNC向小区中的不同移动终端（或下行链路载波）分配不同长度的扰码。 具体地，基于由终端发送的上行链路通信或者通过载波发送的下行链路通信，基站是否确定要分配给每个终端或载波的扰码的长度是短还是长 用高复杂度接收机或低复杂度接收机进行处理。 RNC从基站接收这些偏好，并将其考虑在内，以便为小区中的每个终端或下行链路载波分配短扰码或长加扰码。 RNC然后在整个小区中传播扰码分配。

公开(公告)号：WO2011128246A1

公开(公告)日：2011-10-20

申请号：PCT/EP2011/055430

申请日：2011-04-07

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (publ) ,  REIAL, Andres ,  ROSENQVIST, Anders ,  BERGLJUNG, Christian

Inventor： REIAL, Andres ,  ROSENQVIST, Anders ,  BERGLJUNG, Christian

IPC: H04W16/14

CPC classification number: H04W16/14 ,  H04W64/00

Abstract: Mobile communication system equipment avoids interfering with another transmitter's operation. Sensing information indicating whether the other transmitter's signal has been detected is received from remote sensors, wherein each of the remote sensors is situated at a respective one of two or more sensor locations. The sensing information and information about the sensor locations is used to ascertain one or more exclusion boundaries needed to avoid interfering with the other transmitter's use of the spectral resource. Beamforming parameters are ascertained that will enable the main node to transmit within one or more predefined geographical areas except for any portion of a predefined area located on a far side of the one or more exclusion boundaries. Two or more adjusted signals are produced as a function of the beamforming parameters and one or more signals to be transmitted. The adjusted signals are transmitted from respective ones of two or more antennas.

Abstract translation: 移动通信系统设备避免干扰另一个发射机的操作。 从远程传感器接收指示是否检测到其他发射机的信号的感测信息，其中每个远程传感器位于两个或更多个传感器位置中的相应一个。 感测信息和关于传感器位置的信息用于确定一个或多个排除边界，以避免干扰其他发射机对频谱资源的使用。 确定波束成形参数，其将使主节点能够在一个或多个预定义的地理区域内发送，除了位于一个或多个排除边界的远侧上的预定义区域的任何部分。 根据波束成形参数和要发送的一个或多个信号产生两个或更多个调整后的信号。 经调整的信号从两个或更多个天线中的相应的一个发送。