SOFT OUTPUT M-ALGORITHM RECEIVER STRUCTURES WITH GENERALIZED SURVIVOR SELECTION CRITERIA FOR MIMO SYSTEMS
    1.
    发明申请
    SOFT OUTPUT M-ALGORITHM RECEIVER STRUCTURES WITH GENERALIZED SURVIVOR SELECTION CRITERIA FOR MIMO SYSTEMS 有权
    用于MIMO系统的具有通用选择标准的软输出M算法接收机结构

    公开(公告)号:US20090296842A1

    公开(公告)日:2009-12-03

    申请号:US12476066

    申请日:2009-06-01

    IPC分类号: H04K1/10 H04J11/00

    摘要: A method and apparatus is disclosed herein for a modified soft output M-algorithm. In one embodiment, the soft output M-algorithm is employed by a receiver in a wireless communication system to receive information-bearing signals wirelessly transmitted from the transmitter wirelessly transmitted, the receiver comprising: an inner decoder structure having a multiple-in multiple-out (MIMO) joint demapper to perform joint inner demapping over each tone, the joint demapper being operable to apply a soft-output M-type algorithm to identify survivor candidates at each depth in a detection tree being searched for each tone, including surviving full-length candidates, based on at least one metric and at least one other criterion, where a number of best alternatives from every level of the tree are expanded along with one or more alternatives selected meeting the at least one other criterion and where soft-output related information is collected and stored for each bit, and an outer decoder operable with the inner decoder to perform iterative decoding.

    摘要翻译: 本文公开了一种用于修改的软输出M算法的方法和装置。 在一个实施例中,软输出M算法被无线通信系统中的接收机采用以接收从无线发送的发射机无线发射的信息承载信号,所述接收机包括:内部解码器结构,其具有多进多出 (MIMO)联合解映射器,以在每个音调上执行联合内部解映射,所述联合解映射器可操作以应用软输出M型算法来识别正在搜索每个音调的检测树中的每个深度处的幸存候选者, 基于至少一个度量和至少一个其他标准,其中来自所述树的每个级别的多个最佳替代物与满足所述至少一个其他标准的一种或多种选择一起扩展,并且其中软输出相关 针对每个位收集和存储信息,以及可以与内部解码器一起执行迭代解码的外部解码器。

    TREE POSITION ADAPTIVE SOFT OUTPUT M-ALGORITHM RECEIVER STRUCTURES
    2.
    发明申请
    TREE POSITION ADAPTIVE SOFT OUTPUT M-ALGORITHM RECEIVER STRUCTURES 有权
    树位置自适应软输出M算法接收器结构

    公开(公告)号:US20090213954A1

    公开(公告)日:2009-08-27

    申请号:US12335389

    申请日:2008-12-15

    IPC分类号: H04L23/02

    摘要: A method and apparatus for tree position adaptive SOMA receiver structures are disclosed herein. In one embodiment, a device for use in a wireless communication system comprises a receiver to receive information-bearing signals from the transmitter wirelessly transmitted using OFDM and bit interleaved coded modulation, where the receiver includes an inner decoder structure having a soft output M-algorithm (SOMA) based multiple-in multiple-out (MIMO) joint demapper that uses a SOMA-based MIMO detection process to perform joint inner demapping over each tone, and wherein the SOMA-based MIMO joint demapper is operable to search a detection tree for each tone using a tree-search symbol order that is adapted for each tone based on channel state information and extrinsic information from the outer decoder, where only a number of best alternatives from every level of the tree are expanded.

    摘要翻译: 本文公开了一种用于树位置自适应SOMA接收机结构的方法和装置。 在一个实施例中,用于无线通信系统的设备包括接收机,用于从使用OFDM和比特交织编码调制器无线发射的发射机接收信息承载信号,其中接收机包括具有软输出M算法的内部解码器结构 (SOMA)的多输入多输出(MIMO)联合解映射器,其使用基于SOMA的MIMO检测处理来对每个音调执行联合内部解映射,并且其中基于SOMA的MIMO联合解映射器可操作以搜索检测树 每个音调使用根据来自外部解码器的信道状态信息和外部信息适合于每个音调的树形搜索符号顺序,其中只有树的每个级别的最佳替代方案被扩展。

    METHOD AND APPARATUS FOR PRIORITIZED INFORMATION DELIVERY WITH NETWORK CODING OVER TIME-VARYING NETWORK TOPOLOGIES
    4.
    发明申请
    METHOD AND APPARATUS FOR PRIORITIZED INFORMATION DELIVERY WITH NETWORK CODING OVER TIME-VARYING NETWORK TOPOLOGIES 有权
    用于通过网络编码进行改进的信息交付的时变网络拓扑的方法和装置

    公开(公告)号:US20080225751A1

    公开(公告)日:2008-09-18

    申请号:US12040653

    申请日:2008-02-29

    IPC分类号: H04L12/28

    摘要: A method and apparatus is disclosed herein for information delivery with network coding over time-varying network topologies. In one embodiment, the method comprises decomposing a sequence of topology graphs that model a time-varying network topology into a plurality of virtual graphs, where each virtual graph of the plurality of virtual graphs corresponds to a distinct traffic class, and the virtual topology graph representing a partial topology of a time-varying network. The method also includes selecting a network code for each virtual graph in the plurality of the virtual graphs to meet requirements of the distinct traffic class corresponding to said each topology graph, where the network code is used to encode packets of the associated traffic class, and processing packets of each traffic class using the network code determined by its corresponding virtual topology and the requirements of said each traffic class, including using a virtual buffer system to implement the network code corresponding to each traffic class over the physical network topology. The method also includes using a scheduler to determine the transmission schedules for each output packet from the virtual buffer system of each traffic class where the scheduling decisions are based, at least in part, on the QoS requirements of each class.

    摘要翻译: 本文公开了一种用于通过随时间变化的网络拓扑进行网络编码的信息传递的方法和装置。 在一个实施例中,该方法包括分解将时变网络拓扑建模成多个虚拟图的拓扑图序列,其中多个虚拟图中的每个虚拟图对应于不同的流量类别,虚拟拓扑图 代表时变网络的部分拓扑。 该方法还包括为多个虚拟图中的每个虚拟图选择网络代码以满足对应于所述每个拓扑图的不同流量类别的要求,其中网络代码用于对相关联的流量类别的分组进行编码;以及 使用由其对应的虚拟拓扑确定的网络代码和所述每个流量类别的要求来处理每个流量类别的分组,包括使用虚拟缓冲器系统来实现通过物理网络拓扑对应于每个流量类别的网络代码。 该方法还包括使用调度器至少部分地基于每个类的QoS要求来确定来自调度决策所基于的每个业务类别的虚拟缓冲器系统的每个输出分组的传输调度。

    CHANNEL CLASSIFICATION AND RATE ADAPTATION FOR SU-MIMO SYSTEMS
    5.
    发明申请
    CHANNEL CLASSIFICATION AND RATE ADAPTATION FOR SU-MIMO SYSTEMS 有权
    用于SU-MIMO系统的信道分类和速率适应

    公开(公告)号:US20100040163A1

    公开(公告)日:2010-02-18

    申请号:US12538736

    申请日:2009-08-10

    IPC分类号: H04B7/02 H04L5/12

    摘要: A method, apparatus and system are disclosed herein for channel classification and adaptation. In one embodiment, the system comprises a base station having a transmitter that is operable to transmit wireless signals using a plurality of transmission options; and a user terminal having a receiver that is operable to receive and decode wireless signals using a plurality of receiver algorithms, where the user terminal is operable to receive communications from the transmitter over a multiple-input, multiple output (MIMO) channel, to select at least one coding mode to be used by the transmitter on the channel based on rates achievable using MIMO transmission, in view of the channel information, using different combinations of one of the plurality of receiver algorithms and one of the plurality of transmission options, and to send information to identify the at least one coding mode to the base station using a feedback channel, each coding mode specifying at least an encoder to be used by the transmitter for the channel.

    摘要翻译: 本文公开了用于信道分类和适配的方法,装置和系统。 在一个实施例中,该系统包括具有可操作以使用多个传输选项传输无线信号的发射机的基站; 以及具有接收机的用户终端,所述接收机可操作以使用多个接收机算法来接收和解码无线信号,其中所述用户终端可操作以通过多输入多输出(MIMO)信道从所述发射机接收通信,以选择 考虑到信道信息,使用多个接收机算法中的一个接收机算法和多个传输选项之一的不同组合,基于信道上的发射机使用的至少一个编码模式,使用MIMO传输可实现的速率,以及 使用反馈信道向基站发送用于识别至少一个编码模式的信息,每个编码模式至少指定要由发射机用于信道的编码器。

    ADAPTIVE MAXLOGMAP-TYPE RECEIVER STRUCTURES
    6.
    发明申请
    ADAPTIVE MAXLOGMAP-TYPE RECEIVER STRUCTURES 有权
    自适应MAXLOGMAP型接收机结构

    公开(公告)号:US20080285671A1

    公开(公告)日:2008-11-20

    申请号:US12121634

    申请日:2008-05-15

    IPC分类号: H04L27/28

    摘要: A method and apparatus is disclosed herein for adaptive MaclogMAP-type receiver structures. In one embodiment, a device comprises a receiver to receive information-bearing signals from the transmitter wirelessly transmitted using OFDM and bit interleaved coded modulation, and the receiver comprises an inner decoder structure having a multiple-in multiple-out (MIMO) joint demapper to perform most likely transmitted symbol estimation using a modified MaxLogMAP process that is operable to adapt a degree of metric correction based on quality of OFDM tones.

    摘要翻译: 本文公开了一种用于自适应MaclogMAP型接收机结构的方法和装置。 在一个实施例中,设备包括接收机,用于从使用OFDM和比特交织编码调制器无线发射的发射机接收信息承载信号,并且接收机包括具有多输入多输出(MIMO)联合解映射器的内部解码器结构, 使用修改的MaxLogMAP处理执行最可能的发送符号估计,该处理可操作以基于OFDM音调的质量来适应一定程度的度量校正。

    Channel classification and rate adaptation for SU-MIMO systems
    7.
    发明授权
    Channel classification and rate adaptation for SU-MIMO systems 有权
    SU-MIMO系统的信道分类和速率适配

    公开(公告)号:US08451951B2

    公开(公告)日:2013-05-28

    申请号:US12538736

    申请日:2009-08-10

    IPC分类号: H04L27/06 H04B1/00

    摘要: A method, apparatus and system are disclosed herein for channel classification and adaptation. In one embodiment, the system comprises a base station having a transmitter that is operable to transmit wireless signals using a plurality of transmission options; and a user terminal having a receiver that is operable to receive and decode wireless signals using a plurality of receiver algorithms, where the user terminal is operable to receive communications from the transmitter over a multiple-input, multiple output (MIMO) channel, to select at least one coding mode to be used by the transmitter on the channel based on rates achievable using MIMO transmission, in view of the channel information, using different combinations of one of the plurality of receiver algorithms and one of the plurality of transmission options, and to send information to identify the at least one coding mode to the base station using a feedback channel, each coding mode specifying at least an encoder to be used by the transmitter for the channel.

    摘要翻译: 本文公开了用于信道分类和适配的方法,装置和系统。 在一个实施例中,该系统包括具有可操作以使用多个传输选项传输无线信号的发射机的基站; 以及具有接收机的用户终端,所述接收机可操作以使用多个接收机算法来接收和解码无线信号,其中所述用户终端可操作以通过多输入多输出(MIMO)信道从所述发射机接收通信,以选择 考虑到信道信息,使用多个接收机算法中的一个接收机算法和多个传输选项之一的不同组合,基于信道上的发射机使用的至少一个编码模式,使用MIMO传输可实现的速率,以及 使用反馈信道向基站发送用于识别至少一个编码模式的信息,每个编码模式至少指定要由发射机用于信道的编码器。

    Adaptive forward-backward soft output M-algorithm receiver structures
    8.
    发明授权
    Adaptive forward-backward soft output M-algorithm receiver structures 有权
    自适应前向后退软输出M算法接收机结构

    公开(公告)号:US08279954B2

    公开(公告)日:2012-10-02

    申请号:US12335409

    申请日:2008-12-15

    IPC分类号: H04K1/10

    摘要: A method and apparatus is disclosed herein for forward-backward SOMA techniques. In one embodiment, the apparatus is a receiver comprising: an inner decoder structure having a soft output M-algorithm (SOMA) based multiple-in multiple-out (MIMO) joint demapper that uses a SOMA-based MIMO detection process to perform joint inner demapping over each tone, where the SOMA-based MIMO joint demapper is operable to identify a best candidate among a number of candidates by searching a detection tree for each tone using a forward pass through the detection tree, where only a number of best alternatives from every level of the tree are expanded and where soft-output related information is collected and stored, and to perform a second pass, following the forward pass, during which soft-output is computed for each bit; and an outer decoder operable with the SOMA-based inner decoder to perform iterative decoding.

    摘要翻译: 本文中公开了用于前向后向SOMA技术的方法和装置。 在一个实施例中,该装置是一种接收机,包括:内部解码器结构,其具有基于SOMA的MIMO检测过程的软输出M算法(SOMA)的多输入多输出(MIMO)联合解映射器,以执行联合内部 对每个音调进行解映射,其中基于SOMA的MIMO联合解映射器可操作以通过使用通过检测树的前向通过搜索每个音调的检测树来识别多个候选中的最佳候选,其中只有多个最佳替代方案 树的每个级别被扩展并且在其中收集和存储软输出相关信息,并且在正向传递之后执行第二遍,在该过程期间为每个位计算软输出; 以及可以与基于SOMA的内部解码器一起执行迭代解码的外部解码器。

    Adaptive MaxLogMAP-type receiver structures
    9.
    发明授权
    Adaptive MaxLogMAP-type receiver structures 有权
    自适应MaxLogMAP型接收机结构

    公开(公告)号:US08064548B2

    公开(公告)日:2011-11-22

    申请号:US12121634

    申请日:2008-05-15

    IPC分类号: H04L27/06

    摘要: A method and apparatus is disclosed herein for adaptive MaclogMAP-type receiver structures. In one embodiment, a device comprises a receiver to receive information-bearing signals from the transmitter wirelessly transmitted using OFDM and bit interleaved coded modulation, and the receiver comprises an inner decoder structure having a multiple-in multiple-out (MIMO) joint demapper to perform most likely transmitted symbol estimation using a modified MaxLogMAP process that is operable to adapt a degree of metric correction based on quality of OFDM tones.

    摘要翻译: 本文公开了一种用于自适应MaclogMAP型接收机结构的方法和装置。 在一个实施例中,设备包括接收机,用于从使用OFDM和比特交织编码调制器无线发射的发射机接收信息承载信号,并且接收机包括具有多输入多输出(MIMO)联合解映射器的内部解码器结构, 使用修改的MaxLogMAP处理执行最可能的发送符号估计,该处理可操作以基于OFDM音调的质量来适应一定程度的度量校正。