公开(公告)号：US08369278B2

公开(公告)日：2013-02-05

申请号：US13544238

申请日：2012-07-09

Applicant: Xianghua Wang ,  Xuan Feng

Inventor： Xianghua Wang ,  Xuan Feng

IPC: H04W72/04 ,  H04J3/24

CPC classification number: H04W72/042 ,  H04L1/1819 ,  H04L1/1845 ,  H04L1/1867 ,  H04L1/1896 ,  H04L47/36

Abstract: A method for sending control signaling, including: a transmitter using different states of one field in the control signaling to indicate the payload size or RV; and sends the control signaling indicative of the payload size or RV in the field. It is appropriate that some states of one field indicate different payload sizes, and the remaining states of the field indicate different RVs. An apparatus for sending control signaling is disclosed. The apparatus may be integrated in a base station, and may include a control signaling generating unit and a control signaling sending unit.

Abstract translation: 一种用于发送控制信令的方法，包括：使用控制信令中的一个字段的不同状态的发射机来指示有效载荷大小或RV; 并且在现场发送指示有效载荷大小或RV的控制信令。 一个字段的某些状态表示不同的有效载荷大小是适当的，并且该字段的剩余状态表示不同的RV。 公开了发送控制信令的装置。 该装置可以集成在基站中，并且可以包括控制信令生成单元和控制信令发送单元。

公开(公告)号：US20130016663A1

公开(公告)日：2013-01-17

申请号：US13621704

申请日：2012-09-17

Applicant: Broadcom Corporation

Inventor： Xiaoxin Qiu ,  Li Fung Chang ,  Hui Luo ,  Srirang Ashok Lovlekar

IPC: H04W4/00

CPC classification number: H04L1/0051 ,  H04L1/0054 ,  H04L1/0066 ,  H04L1/1819 ,  H04L1/1845

Abstract: A baseband processing module of a base station includes a Turbo decoding module. The Turbo decoding module decodes a Turbo code word to produce one or more Media Access Control (MAC) packet(s) carried by the turbo decode word. Each MAC packet includes a MAC packet header and the MAC packet payload, which carries one or more Radio Link Control (RLC) Packet Data Units (PDUs). The Turbo decoding module decodes the MAC packet header to determine boundaries of the PDUs carried in the MAC packet payload. The Turbo decoding module decodes RLC PDU headers and RLC PDU payloads of the RLC PDUs. The Turbo decoding module writes the decoded MAC packet header, the decoded RLC PDU headers, and the decoded RLC PDU payloads to memory in a word-aligned format. The Turbo decoding module may also operate in various other Turbo decoding modes.

Abstract translation: 基站的基带处理模块包括Turbo解码模块。 Turbo解码模块解码Turbo码字以产生由turbo解码字携带的一个或多个媒体访问控制（MAC）分组。 每个MAC分组包括携带一个或多个无线电链路控制（RLC）分组数据单元（PDU）的MAC分组报头和MAC分组有效载荷。 Turbo解码模块对MAC分组报头进行解码，以确定MAC分组负载中承载的PDU的边界。 Turbo解码模块解码RLC PDU的RLC PDU头部和RLC PDU有效载荷。 Turbo解码模块将解码的MAC分组报头，解码的RLC PDU报头和解码的RLC PDU有效载荷以字对齐格式写入存储器。 Turbo解码模块也可以以各种其他Turbo解码模式工作。

公开(公告)号：US08341504B2

公开(公告)日：2012-12-25

申请号：US12721911

申请日：2010-03-11

Applicant: Amer A. Hassan ,  Billy R. Anders, Jr.

Inventor： Amer A. Hassan ,  Billy R. Anders, Jr.

IPC: H03M13/00

CPC classification number: H03M13/3769 ,  H03M13/3738 ,  H03M13/6306 ,  H04L1/1845

Abstract: A communication system that provides fast and reliable communications. The system is suitable for use in connection with wireless computing devices in which transmission errors may occur because of channel conditions, such as interference. Channel conditions causing transmission errors may be bursty and transient such that the errors temporarily overwhelm an error control code. By combining data received for multiple transmission attempts of a packet that fail error checking or that pass error checking with low reliability, a reliable representation of the packet may be quickly constructed. Though, combining may be omitted when a transmission attempt is received that passes error checking with high reliability.

Abstract translation: 提供快速可靠通信的通信系统。 该系统适用于由于诸如干扰之类的信道状况而可能发生传输错误的无线计算设备。 引起传输错误的信道条件可能是突发和瞬态的，使得错误暂时压倒错误控制码。 通过组合对于错误检查失败的分组的多个传输尝试接收到的数据，或者以低可靠性组合通过错误检查，可以快速构建分组的可靠表示。 尽管当接收到以高可靠性通过错误检查的传输尝试时，可以省略组合。

公开(公告)号：US08341482B2

公开(公告)日：2012-12-25

申请号：US13311148

申请日：2011-12-05

Applicant: Stephen E. Terry ,  Ariela Zeira ,  Nader Bolourchi

Inventor： Stephen E. Terry ,  Ariela Zeira ,  Nader Bolourchi

IPC: G01R31/30 ,  H04L1/18 ,  H04J3/22

CPC classification number: H04L1/0003 ,  H04L1/0009 ,  H04L1/1812 ,  H04L1/1822 ,  H04L1/1845 ,  H04L1/1893 ,  H04L5/0055 ,  H04L27/2608 ,  H04W72/04 ,  H04W72/0413 ,  H04W72/042

Abstract: A user equipment comprises a transmitter and an adaptive modulation and coding controller. The transmitter is configured to transmit data over an air interface in a single transmission time interval with a first specified modulation and coding scheme, where the single transmission time interval has a plurality of transport block sets. In response to receiving a repeat request for retransmission of at least one particular transport block set, the transmitter retransmits the at least one of the particular transport block sets. The adaptive modulation and coding controller is configured to change the specified modulation and coding scheme to a second specified modulation and coding scheme, enabling a combining of a particular transport block set transmitted at the first specified modulation and coding scheme with a retransmitted version of the particular transport block set transmitted at the second specified modulation and coding scheme.

Abstract translation: 用户设备包括发射机和自适应调制编码控制器。 发射机被配置为在单个传输时间间隔内通过空中接口以第一指定的调制和编码方案来发送数据，其中单个传输时间间隔具有多个传输块集合。 响应于接收到对至少一个特定传输块集合的重传的重复请求，发射机重传特定传输块集合中的至少一个。 自适应调制编码控制器被配置为将指定的调制和编码方案改变为第二规定的调制和编码方案，使得可以将在第一指定的调制和编码方案发送的特定传输块集合与特定的调制和编码方案的重传版本 在第二规定的调制和编码方案中传输的传输块集合。

公开(公告)号：US08327232B2

公开(公告)日：2012-12-04

申请号：US12426681

申请日：2009-04-20

Applicant: Ramakrishna S. Budampati ,  Arun V. Mahasenan ,  SrinivasaRao Katuri ,  Alexander Chernoguzov

Inventor： Ramakrishna S. Budampati ,  Arun V. Mahasenan ,  SrinivasaRao Katuri ,  Alexander Chernoguzov

IPC: G06F11/00

CPC classification number: H04L1/1845 ,  H04L2001/0092

Abstract: Various techniques are disclosed for improved reliability of wireless communications using packet combination-based error correction. For example, a method includes receiving a first message transmitted wirelessly, where the first message contains a first copy of a data packet and has at least one error. The method also includes receiving a second message transmitted wirelessly, where the second message contains a second copy of the data packet and has at least one error. The method further includes identifying a set of bit positions based on where the first and second copies of the data packet differ and modifying the set of bit positions to produce a modified set of bit positions. In addition, the method includes modifying one or more bit values in the modified set of bit positions to produce at least one modified copy of the data packet and determining if the at least one modified copy of the data packet is error-free.

Abstract translation: 公开了使用基于分组组合的纠错的无线通信的可靠性的各种技术。 例如，一种方法包括接收无线发送的第一消息，其中第一消息包含数据包的第一副本并具有至少一个错误。 该方法还包括接收无线发送的第二消息，其中第二消息包含数据分组的第二副本并具有至少一个错误。 该方法还包括基于数据分组的第一和第二副本不同的位置来识别一组比特位置，并且修改比特位置集合以产生经修改的比特位置集合。 此外，该方法包括修改修改后的位位置中的一个或多个比特值以产生数据分组的至少一个修改副本，并确定数据分组的至少一个修改副本是否无错误。

公开(公告)号：US08320509B2

公开(公告)日：2012-11-27

申请号：US13354527

申请日：2012-01-20

Applicant: Jungwon Lee ,  Woong Jun Jang ,  Leilei Song

Inventor： Jungwon Lee ,  Woong Jun Jang ,  Leilei Song

IPC: H04L27/06

CPC classification number: H04L27/06 ,  H04B7/0885 ,  H04L1/1816 ,  H04L1/1819 ,  H04L1/1845 ,  H04L27/01 ,  H04L2025/03426 ,  H04L2025/03713

Abstract: Systems and methods are provided for decoding signal vectors in multiple-input multiple-output (MIMO) systems, where the receiver has received one or more signal vectors from the same transmitted vector. The receiver combines the received vectors by vector concatenation The concatenated vector may then be decoded using, for example, maximum-likelihood decoding. In some embodiments, the combined signal vector is equalized before decoding.

Abstract translation: 提供了用于对多输入多输出（MIMO）系统中的信号矢量进行解码的系统和方法，其中接收机已经从相同的传输矢量接收了一个或多个信号矢量。 接收机通过矢量级联组合接收的矢量然后可以使用例如最大似然解码来对连接的矢量进行解码。 在一些实施例中，组合信号矢量在解码之前被均衡。

公开(公告)号：US20120284581A1

公开(公告)日：2012-11-08

申请号：US13552968

申请日：2012-07-19

Applicant: Peter LARSSON

Inventor： Peter LARSSON

IPC: H04L1/18

CPC classification number: H04L1/1887 ,  H04L1/1845 ,  H04L5/0044 ,  H04L5/0058 ,  H04L12/1868 ,  H04L2001/0093

Abstract: Regular data packets are scheduled for transmission from a sender to multiple receivers in a multicast ARQ system. In a joint scheduling and encoding procedure, a composite data packet is formed as a weighted linear combination of regular data packets. The corresponding coding weights are adapted based on feedback information from the receivers about received data packets such the composite packet represents a new linearly independent coding of regular data packets different from any multicast data packet previously received in a selected set of the receivers during the multicast session. A weight vector with at least two different non-zero coding weights adds a further degree of freedom and guarantees the ability to form a composite data packet that represents a new linearly independent coding for transmission.

Abstract translation: 定期数据包被安排在组播ARQ系统中从发送方发送到多个接收者。 在联合调度和编码过程中，形成复合数据分组作为常规数据分组的加权线性组合。 相应的编码权重基于来自接收机的关于接收到的数据分组的反馈信息进行调整，使得复合分组表示在多播会话期间先前在所选接收机组中接收到的任何多播数据分组不同的常规数据分组的新的线性独立编码 。 具有至少两个不同的非零编码权重的加权向量增加了进一步的自由度，并且保证形成表示用于传输的新的线性独立编码的复合数据分组的能力。

公开(公告)号：US08284874B2

公开(公告)日：2012-10-09

申请号：US12374719

申请日：2007-07-25

Applicant: Cyril Valadon ,  Carlo Pachetti

Inventor： Cyril Valadon ,  Carlo Pachetti

IPC: H04L27/06

CPC classification number: H04L25/067 ,  H03M13/45 ,  H04B1/707 ,  H04L1/0054 ,  H04L1/1819 ,  H04L1/1845 ,  H04L1/1893

Abstract: A method of producing soft decisions for a signal, wherein a model provides an expression for an LLR for the signal, the LLR expression is dependent on noise power in the signal and can be rendered in a form independent of the noise power, wherein the method comprises evaluating the noise power independent expression using values from the signal to produce soft decisions, calculating a weight expressing the noise power affecting a soft decision relative to the noise power affecting at least one other soft decision and applying the weight to its respective soft decision.

Abstract translation: 一种产生信号的软判决的方法，其中模型为信号提供LLR的表达式，LLR表达式取决于信号中的噪声功率，并且可以以与噪声功率无关的形式呈现，其中该方法 使用来自信号的值来评估噪声功率无关表达，以产生软判决，计算表示相对于影响至少一个其他软判决的噪声功率的软判决的噪声功率的权重，并将该权重应用于其相应的软判决。

公开(公告)号：US08279963B2

公开(公告)日：2012-10-02

申请号：US12410044

申请日：2009-03-24

Applicant: Jungwon Lee ,  Bhaskar V. Nallapureddy ,  Hui-Ling Lou

Inventor： Jungwon Lee ,  Bhaskar V. Nallapureddy ,  Hui-Ling Lou

IPC: H04B7/02 ,  H04L27/00 ,  H04L27/28

CPC classification number: H04L1/0009 ,  H04B7/0669 ,  H04B7/0689 ,  H04B7/0697 ,  H04L1/0625 ,  H04L1/0668 ,  H04L1/1816 ,  H04L1/1845

Abstract: A system includes an encoding module, a symbol selection module, a subcarrier selection module, and a mapping module. The encoding module receives symbols for transmission over K subcarriers and T antennas, encodes the symbols using a space time code, and generates space time coded (STC) versions of the symbols, where K and T are integers greater than 1. The symbol selection module selects T adjacent ones of the symbols and selects STC versions of the T adjacent ones of the symbols. The subcarrier selection module selects one of the K subcarriers for transmitting the T adjacent ones of the symbols and the STC versions of the T adjacent ones of the symbols. The mapping module maps the T adjacent ones of the symbols onto the T antennas for transmission over the selected one of the K subcarriers, respectively, and maps the STC versions of the T adjacent ones of the symbols onto the T antennas for transmission over the selected one of the K subcarriers.

Abstract translation: 系统包括编码模块，符号选择模块，子载波选择模块和映射模块。 编码模块接收用于通过K个子载波和T个天线进行传输的符号，并使用空时码对该符号进行编码，并生成符号的空时编码（STC）版本，其中K和T是大于1的整数。符号选择模块 选择T个相邻的符号，并选择T个相邻符号的STC版本。 子载波选择模块选择用于发送T个相邻符号的T个子载波之一和T个相邻符号的STC版本。 映射模块将T个相邻的符号映射到T个天线上，以便在所选的K个子载波之间分别传输，并将T个相邻的符号的STC版本映射到T个天线上，以便通过所选择的 K个子载波之一。

公开(公告)号：US08250426B2

公开(公告)日：2012-08-21

申请号：US12515924

申请日：2006-11-29

Applicant: Peter Larsson

Inventor： Peter Larsson

IPC: H04L1/18

CPC classification number: H04L1/1887 ,  H04L1/1845 ,  H04L5/0044 ,  H04L5/0058 ,  H04L12/1868 ,  H04L2001/0093

Abstract: Regular data packets are scheduled for transmission from a sender to multiple receivers in a multicast ARQ system. In a joint scheduling and encoding procedure, a composite data packet is formed as a weighted linear combination of regular data packets. The corresponding coding weights are adapted based on feedback information from the receivers about received data packets such the composite packet represents a new linearly independent coding of regular data packets different from any multicast data packet previously received each receiver in a selected set of the receivers during the multicast session. In addition, using a weight vector with at least two different non-zero coding weights adds a further degree of freedom and guarantees the ability to always form a composite data packet that represents a new linearly independent coding for transmission. The ability to transmit linearly independent data packets in at least a majority of the transmission instances will significantly improve the throughput performance for reliable multicasting, especially when the number of users is large.

Abstract translation: 定期数据包被安排在组播ARQ系统中从发送方发送到多个接收者。 在联合调度和编码过程中，形成复合数据分组作为常规数据分组的加权线性组合。 相应的编码权重基于来自接收机的关于接收到的数据分组的反馈信息进行调整，使得该复合分组表示在所选择的一组接收机期间先前接收到每个接收机的接收机中的任何多播数据分组不同的常规数据分组的新的线性独立编码 多播会话。 另外，使用具有至少两个不同的非零编码权重的加权向量增加了进一步的自由度，并保证了总是形成代表用于传输的新的线性独立编码的复合数据分组的能力。 在至少大部分传输实例中传输线性独立数据包的能力将显着提高可靠多播的吞吐量性能，特别是当用户数量较大时。