公开(公告)号：US20130036445A1

公开(公告)日：2013-02-07

申请号：US13494352

申请日：2012-06-12

Applicant: Tung-Yu WU ,  Yu-Shen CHOU ,  Ching-Yao HUANG

Inventor： Tung-Yu WU ,  Yu-Shen CHOU ,  Ching-Yao HUANG

IPC: H04N21/60

CPC classification number: H04L1/0003 ,  H04H20/42 ,  H04H60/11 ,  H04L1/0006 ,  H04L1/0009 ,  H04L65/607

Abstract: A High Definition (HD) video wireless transmission method for transmitting a data packet for a video frame of an HD video is provided. The method includes: receiving the video frame which comprises a video frame size; acquiring a payload length and a Minimal Required Transmission Time (MRTT) associated with the video frame, wherein the MRTT is a minimal time bound for transmitting the video frame to a receiving end; performing partitioning to the video frame for acquiring the data packet according to the payload length; and performing scheduling to the data packet according to the MRTT, and the scheduled data packet is transmitted to the receiving end.

Abstract translation: 提供了一种用于发送用于HD视频的视频帧的数据分组的高清（HD）视频无线传输方法。 该方法包括：接收包括视频帧大小的视频帧; 获取与所述视频帧相关联的有效载荷长度和最小要求传输时间（MRTT），其中所述MRTT是用于将视频帧发送到接收端的最小时间限制; 根据所述有效载荷长度对所述视频帧执行划分以获取所述数据分组; 并根据MRTT对数据分组进行调度，将调度的数据分组发送到接收端。

公开(公告)号：US20120300739A1

公开(公告)日：2012-11-29

申请号：US13574203

申请日：2010-01-28

Applicant: Jonas Fröberg Olsson ,  Arne Simonsson ,  Magnus Thurfjell

Inventor： Jonas Fröberg Olsson ,  Arne Simonsson ,  Magnus Thurfjell

IPC: H04W72/08

CPC classification number: H04L1/0006 ,  H04L1/0021 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/203

Abstract: Disclosed herein is a first network node and a method in a first network node for selecting a transport format among a plurality of available transport formats for communicating information with a second network node via a wireless link, which transport formats are such that a first transport format has a first maximum capacity and all the other transport formats have a higher maximum capacity in an increasing order. The method comprises the steps of: obtaining a quality indicator, which quality indicator indicates the current channel quality of the wireless link; determining a throughput indicator, which throughput indicator indicates the throughput format being available at the obtained quality indicator; calculating a switching value based on the quality indicator and the throughput indicator; switching to the second transport format when the quality indicator indicates that the switching value is reached or exceeded with respect to the second transport format; sending a notification to the second node, which notification indicates the switch to the second transport format.

Abstract translation: 本文公开的是第一网络节点中的第一网络节点和方法，用于经由无线链路选择用于与第二网络节点通信信息的多个可用传输格式之间的传输格式，所述传输格式使得第一传输格式 具有第一最大容量，并且所有其他传输格式以更高的顺序具有更高的最大容量。 该方法包括以下步骤：获取质量指示符，哪个质量指示符指示无线链路的当前信道质量; 确定吞吐量指示符，所述吞吐量指示符指示所获得的质量指示符处的可用吞吐量格式; 基于质量指标和吞吐量指标计算切换值; 当质量指示符指示相对于第二传输格式达到或超过切换值时切换到第二传输格式; 向第二节点发送通知，该通知指示切换到第二传输格式。

公开(公告)号：US08270521B2

公开(公告)日：2012-09-18

申请号：US13052833

申请日：2011-03-21

Applicant: Yutaka Murakami ,  Kiyotaka Kobayashi ,  Masayuki Orihashi ,  Akihiko Matsuoka

Inventor： Yutaka Murakami ,  Kiyotaka Kobayashi ,  Masayuki Orihashi ,  Akihiko Matsuoka

IPC: H04B7/02

CPC classification number: H04L27/0008 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0669 ,  H04L1/0006 ,  H04L1/0026 ,  H04L1/06 ,  H04L1/0618 ,  H04L1/08 ,  H04L5/0046 ,  H04L27/3405 ,  H04W52/42

Abstract: Modulated signal A is transmitted from a first antenna, and modulated signal B is transmitted from a second antenna. As modulated signal B, modulated symbols S2(i) and S2(i+1) obtained from different data are transmitted at time i and time i+1 respectively. In contrast, as modulated signal A, modulated symbols S1(i) and S1(i)′ obtained by changing the signal point arrangement of the same data are transmitted at time i and time i+1 respectively. As a result the reception quality can be changed intentionally at time i and time i+1, and therefore using the demodulation result of modulated signal A of a time when the reception quality is good enables both modulated signals A and B to be demodulated with good error rate performances.

Abstract translation: 从第一天线发送调制信号A，从第二天线发送调制信号B. 作为调制信号B，分别在时间i和时间i + 1发送从不同数据获得的调制符号S2（i）和S2（i + 1）。 相反，作为调制信号A，分别在时间i和时间i + 1发送通过改变相同数据的信号点排列获得的调制符号S1（i）和S1（i）'。 结果，可以在时间i和时间i + 1有意地改变接收质量，因此当接收质量好的时候使用调制信号A的解调结果使得调制信号A和B能够被良好地解调 错误率表现。

公开(公告)号：US20120230291A1

公开(公告)日：2012-09-13

申请号：US13510538

申请日：2010-12-16

Applicant: Seung Hee Han ,  So Yeon Kim ,  Sung Ho Moon ,  Yeong Hyeon Kwon ,  Hyun Soo Ko ,  Jae Hoon Chung ,  Min Seok Noh ,  Moon II Lee

Inventor： Seung Hee Han ,  So Yeon Kim ,  Sung Ho Moon ,  Yeong Hyeon Kwon ,  Hyun Soo Ko ,  Jae Hoon Chung ,  Min Seok Noh ,  Moon II Lee

IPC: H04W72/04

CPC classification number: H04L1/0006 ,  H04L1/0028 ,  H04L1/0061 ,  H04L1/0072

Abstract: The present invention relates to a method for transmitting an uplink or downlink grant in a wireless communication system that supports uplink and downlink multiple input multiple output (MIMO) schemes. The method comprises: determining a downlink control information (DCI) format for an uplink or downlink grant to generate control information: attaching a cyclic redundancy check (CRC) for detecting an error in the created control information; and channel-coding the CRC-attached control information, wherein the control information comprises a bit flag for distinguishing whether the grant is an uplink grant or a downlink grant.

Abstract translation: 本发明涉及在支持上行链路和下行链路多输入多输出（MIMO）方案的无线通信系统中发送上行链路或下行链路许可的方法。 该方法包括：确定用于上行链路或下行链路许可的下行链路控制信息（DCI）格式以产生控制信息：附加用于检测所创建的控制信息中的错误的循环冗余校验（CRC）; 以及对附有CRC的控制信息进行通道编码，其中所述控制信息包括用于区分所述授权是上行链路许可还是下行链路许可的位标志。

公开(公告)号：US08259837B2

公开(公告)日：2012-09-04

申请号：US12913601

申请日：2010-10-27

Applicant: Yutaka Murakami ,  Kiyotaka Kobayashi ,  Masayuki Orihashi ,  Akihiko Matsuoka

Inventor： Yutaka Murakami ,  Kiyotaka Kobayashi ,  Masayuki Orihashi ,  Akihiko Matsuoka

IPC: H04B7/02

CPC classification number: H04L27/0008 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0669 ,  H04L1/0006 ,  H04L1/0026 ,  H04L1/06 ,  H04L1/0618 ,  H04L1/08 ,  H04L5/0046 ,  H04L27/3405 ,  H04W52/42

Abstract: Modulated signal A is transmitted from a first antenna, and modulated signal B is transmitted from a second antenna. As modulated signal B, modulated symbols S2(i) and S2(i+1) obtained from different data are transmitted at time i and time i+1 respectively. In contrast, as modulated signal A, modulated symbols S1(i) and S1(i)′ obtained by changing the signal point arrangement of the same data are transmitted at time i and time i+1 respectively. As a result the reception quality can be changed intentionally at time i and time i+1, and therefore using the demodulation result of modulated signal A of a time when the reception quality is good enables both modulated signals A and B to be demodulated with good error rate performances.

公开(公告)号：US08259695B2

公开(公告)日：2012-09-04

申请号：US11796853

申请日：2007-04-30

Applicant: Jung Ah Lee ,  Said Tatesh ,  Hai Zhou

Inventor： Jung Ah Lee ,  Said Tatesh ,  Hai Zhou

IPC: H04B7/216

CPC classification number: H04L27/2602 ,  H04L1/0006 ,  H04L1/1812 ,  H04L27/2626 ,  H04L27/2647

Abstract: In a wireless telecommunications network, a Code Division Multiple Access (CDMA) scheme is applied to data to encode it. The encoded data transmitted in the uplink using an Orthogonal Frequency Division Multiplexing (OFDM) frame structure including a cyclic prefix (CP). The CDMA encoded data may be time multiplexed with Single Carrier-Frequency Division Multiple Access (SC-FDMA) transmissions. The CDMA transmissions may be used for relatively small payloads, such as those associated with voice traffic and control signals, and the SC-FDMA transmissions used for higher date rate transmissions. This enables autonomous transmission, without scheduling, for smaller payloads. A transmitter includes a selector 3 for performing time multiplexing in the uplink, the required mode being indicated by the Hybrid Automatic Repeat Request (HARQ) ID. A first branch 1 carries SC-FDMA data and a second branch 2 carries data to be transmitted as a CDMA scheme. A CAZAC code may be used in encoding the CDMA data.

Abstract translation: 在无线电信网络中，将码分多址（CDMA）方案应用于数据进行编码。 使用包括循环前缀（CP）的正交频分复用（OFDM）帧结构在上行链路中发送的编码数据。 CDMA编码数据可以与单载波频分多址（SC-FDMA）传输进行时间复用。 CDMA传输可以用于相对小的有效载荷，例如与语音业务和控制信号相关联的那些，以及用于较高日期传输的SC-FDMA传输。 这使得能够进行自主传输，而无需调度，可以实现更小的有效载荷。 发射机包括用于在上行链路中执行时间复用的选择器3，所需模式由混合自动重传请求（HARQ）ID指示。 第一分支1携带SC-FDMA数据，第二分支2携带要作为CDMA方案发送的数据。 可以在编码CDMA数据时使用CAZAC码。

公开(公告)号：US08254361B2

公开(公告)日：2012-08-28

申请号：US12761139

申请日：2010-04-15

Applicant: Seigo Nakao ,  Yasuhiro Tanaka ,  Nobuo Higashida

Inventor： Seigo Nakao ,  Yasuhiro Tanaka ,  Nobuo Higashida

IPC: H04J1/00

CPC classification number: H04L5/1438 ,  H04B7/0689 ,  H04L1/0006 ,  H04L1/0079 ,  H04L1/06

Abstract: A storage unit stores a preamble signal defined in a legacy system and a preamble signal defined in a MIMO system. A monitoring unit in a transmitting apparatus monitors the existence of any communication apparatus which is not compatible with the MIMO system but accepts the legacy system. A channel characteristics acquiring unit derives the characteristics of a radio channel between the transmitting apparatus and a receiving apparatus. A selector selects a packet format based on a monitoring result obtained by the monitoring unit. The selector also selects where to place LTS, based on the characteristics of wireless channel derived by the channel characteristics acquiring unit.

Abstract translation: 存储单元存储在传统系统中定义的前导信号和在MIMO系统中定义的前导信号。 发送装置中的监视单元监视与MIMO系统不兼容但是接受传统系统的任何通信装置的存在。 信道特征获取单元导出发送装置和接收装置之间的无线电信道的特性。 选择器基于由监视单元获得的监视结果来选择分组格式。 基于由信道特征获取单元导出的无线信道的特性，选择器还选择放置LTS的位置。

公开(公告)号：US20120216092A1

公开(公告)日：2012-08-23

申请号：US13401831

申请日：2012-02-21

Applicant: Moon-Il LEE ,  Jin-Young CHUN ,  Jae-Won CHANG ,  Jin-Hyuk JUNG

Inventor： Moon-Il LEE ,  Jin-Young CHUN ,  Jae-Won CHANG ,  Jin-Hyuk JUNG

IPC: H04L1/18 ,  G06F11/14

CPC classification number: H04B7/0671 ,  H04B7/12 ,  H04L1/0006 ,  H04L1/0625 ,  H04L1/08 ,  H04L1/1816 ,  H04L1/1819 ,  H04L27/2602 ,  H04L27/2607 ,  H04L27/2626 ,  H04L27/2634

Abstract: According to one embodiment, a method for repetitive transmission using a plurality of sub-carriers includes: preparing a symbol to be transmitted using the plurality of sub-carriers within a single time domain unit; repeating the symbol a predetermined number (N) of times; applying a corresponding one of N different cyclic shift values to each of the N repeated symbols to be transmitted using the plurality of sub-carriers within the single time domain unit; performing an IFFT (Inverse Fast Fourier Transform) on each of the N repeated symbols to which the corresponding one of the N different cyclic shift values is applied; and transmitting the N repeated symbols on which the IFFT is performed using the plurality of sub-carriers.

Abstract translation: 根据一个实施例，使用多个子载波的重复传输方法包括：在单个时域单元内准备要使用多个子载波进行传输的符号; 重复该符号预定次数（N）次; 对所述N个重复符号中的每一个应用N个不同循环移位值中的相应一个，使用所述单个时域单元内的所述多个子载波进行发送; 对应用N个不同循环移位值中的相应一个的N个重复符号中的每一个执行IFFT（快速傅里叶逆变换） 以及使用所述多个子载波来发送在其上执行所述IFFT的所述N个重复符号。

公开(公告)号：US08233501B2

公开(公告)日：2012-07-31

申请号：US10841289

申请日：2004-05-07

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

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

IPC: H04J3/24 ,  G08C25/02

CPC classification number: H04L1/0003 ,  H04L1/0006 ,  H04L1/0009 ,  H04L1/1819 ,  H04L1/1845 ,  H04L1/1874

Abstract: Data of a transport block set is to be transmitted in a wireless communication system. The wireless communication system uses adaptive modulation and coding and has a physical layer hybrid automatic repeat request mechanism. Segmentation information for potential segmentation of the transport block set is provided. The transport block set is transmitted with a first specified modulation and coding scheme. The transport bock set is received and whether the received transport block set is determined to meet a specified quality. When the specified quality is not met, a repeat request is transmitted. The first specified modulation and coding set is changed to a second specified modulation and coding set. In response to the repeat request, the transmit block set is segmented into a plurality of segments supported by the second specified modulation and coding set in accordance with the provided segmentation information. The segments are transmitted and at least two of the segments are transmitted separately. The transmitted segments are received. The segmentation process may be applied more than once for a particular TBS transmission.

Abstract translation: 传输块集合的数据将在无线通信系统中发送。 无线通信系统采用自适应调制编码，具有物理层混合自动重传请求机制。 提供了用于传输块集合的潜在分段的分段信息。 以第一规定的调制和编码方案发送传输块集。 接收到传输块集，以及确定接收的传输块集合是否满足指定的质量。 当不满足指定的质量时，会发送重复请求。 第一规定的调制编码组被改变为第二规定的调制编码集。 响应于重复请求，发送块集合根据所提供的分段信息被分割成由第二指定的调制和编码集支持的多个分段。 传送段，并且至少两个段被单独传送。 传送的段被接收。 对于特定的TBS传输，分段处理可以被多次应用。

公开(公告)号：US08224370B2

公开(公告)日：2012-07-17

申请号：US12501381

申请日：2009-07-10

Applicant: Radovan Miucic

Inventor： Radovan Miucic

IPC: H04B7/00

CPC classification number: H04W52/343 ,  H04L1/0006 ,  H04L1/0019 ,  H04W4/046 ,  H04W52/282 ,  H04W52/367

Abstract: A method of reducing channel utilization in a vehicle communication network is disclosed. The method includes a step of reducing the transmitting power of messages sent over the vehicle communication network when channel saturation occurs. The method also includes a step of increasing the transmitting period of messages sent over the vehicle communication network when channel saturation occurs. The method further includes steps of modifying the transmitting power and transmitting period of messages according to vehicle speed.

Abstract translation: 公开了一种降低车辆通信网络中的信道利用率的方法。 该方法包括当信道饱和发生时降低在车辆通信网络上发送的消息的发送功率的步骤。 该方法还包括当信道饱和发生时增加在车辆通信网络上发送的消息的发送周期的步骤。 该方法还包括根据车速修改发送功率和发送消息周期的步骤。