公开(公告)号：US20100040171A1

公开(公告)日：2010-02-18

申请号：US12192648

申请日：2008-08-15

Applicant: Shouxing Qu ,  Yan Xin ,  Johanna Lisa Dwyer ,  Paul Carpenter

Inventor： Shouxing Qu ,  Yan Xin ,  Johanna Lisa Dwyer ,  Paul Carpenter

IPC: H04L27/36 ,  H04L27/38

CPC classification number: H04L1/003 ,  H04L1/0003 ,  H04L1/0086 ,  H04L27/02 ,  H04L27/3416

Abstract: Systems and methods of performing ASK or QAM modulation with uneven distance between symbols are provided. These are used to provide differing BER performances among bits sent from a transmitter to a receiver.

Abstract translation: 提供了在符号之间具有不均匀距离执行ASK或QAM调制的系统和方法。 这些用于在从发射机发送到接收机的比特之间提供不同的BER性能。

公开(公告)号：US20090174584A1

公开(公告)日：2009-07-09

申请号：US12330706

申请日：2008-12-09

Applicant: Shunsuke MOCHIZUKI ,  Masato Kikuchi ,  Masahiro Yoshioka ,  Ryosuke Araki ,  Masaki Handa ,  Takashi Nakanishi ,  Hiroshi Ichiki ,  Tetsujiro Kondo

Inventor： Shunsuke MOCHIZUKI ,  Masato Kikuchi ,  Masahiro Yoshioka ,  Ryosuke Araki ,  Masaki Handa ,  Takashi Nakanishi ,  Hiroshi Ichiki ,  Tetsujiro Kondo

IPC: H03M13/00

CPC classification number: H04L1/24 ,  H04L1/0086

Abstract: A transmission device configured to transmit a transmission bit string which is an arrangement of a unit bit string of multiple N bits includes: a conversion unit configured to convert the unit bit string into a converted bit string in accordance with a conversion table obtained by obtaining an error rate wherein a k'th bit out of the N bits is in error; obtaining an error expectancy which is an expectancy that a significant bit of the N bits in the unit bit string will err; and creating a conversion table that correlates the unit bit string and a converted bit string obtained by converting the insignificant bit of the unit bit string to a smallest error expectancy bit pattern which is a bit pattern that minimizes the error expectancy of the multiple bit patterns; and a transmission unit configured to transmit the converted bit string.

Abstract translation: 发送装置，被配置为发送作为多个N比特的单位比特串的配置的发送比特串，包括：转换单元，被配置为根据通过获得的转换表将所述单位比特串转换为转换比特串 错误率，其中N位中的第k位是错误的; 获得预期的期望值，即单位比特串中的N比特的有效比特将会错误; 以及创建将单位位串与通过将单位位串的无效位转换为最小化多位模式的误差预期的位模式的最小误差期望位模式而获得的转换位串相关联的转换表; 以及发送单元，被配置为发送转换的比特串。

公开(公告)号：US20090168811A1

公开(公告)日：2009-07-02

申请号：US12195698

申请日：2008-08-21

Applicant: Takashi SEYAMA ,  Takashi DATEKI

Inventor： Takashi SEYAMA ,  Takashi DATEKI

IPC: H04J3/02

CPC classification number: H04W72/04 ,  H04L1/0026 ,  H04L1/0079 ,  H04L1/0086 ,  H04L5/0016 ,  H04L5/0044 ,  H04L5/0055 ,  H04L5/0057 ,  H04L27/2636 ,  H04L2001/125 ,  H04W72/0466 ,  H04W72/0473

Abstract: A transmitter time-division-multiplexes, in time domain, to assign at least a part of a second signal stream of a second channel being relatively high error-resilient compared to a first signal stream of a first channel between a boundary of the blocks and the first signal stream of the first channel of a time-division-multiplexing signal.

Abstract translation: 发射机在时域中时分复用以分配第二信道的第二信道的至少一部分与第一信道的块的边界之间的第一信号流相比具有相对较高的错误弹性 时分复用信号的第一信道的第一信号流。

公开(公告)号：US20090086686A1

公开(公告)日：2009-04-02

申请号：US12241834

申请日：2008-09-30

Applicant: Marian Rudolf ,  Stephen G. Dick ,  Prabhakar R. Chitrapu ,  Behrouz Aghili

Inventor： Marian Rudolf ,  Stephen G. Dick ,  Prabhakar R. Chitrapu ,  Behrouz Aghili

IPC: H04J3/00 ,  H04W8/00

CPC classification number: H04L1/0038 ,  H04L1/0086

Abstract: A method and apparatus allow for reliable and low-complexity decoding of EGPRS2 communication bursts when RTTI and BTTI equipment operate on the same timeslot(s). Various configurations for the Uplink State Flag (USF) mapping employ adjustable bit swapping of some or all USF channel-coded bits in communication bursts. Configurations that allow for an adjustable use of the symbol mapping stage in the transmitter and receiver to allow for more throughput and/or reduced complexity are also disclosed. Admissible mapping rules are known to the receiver and transmitter and therefore reduce the complexity of decoding this information. In order to increase throughput for EGPRS2 communication bursts, RTTI transmissions of different modulation types or EGPRS/EGPRS2 modulation and coding schemes during a BTTI interval are introduced that allow for reliable USF decoding and reduced decoder complexity.

Abstract translation: 当RTTI和BTTI设备在相同的时隙上运行时，一种方法和装置允许EGPRS2通信突发的可靠和低复杂度的解码。 用于上行链路状态标志（USF）映射的各种配置在通信脉冲串中使用一些或所有USF信道编码比特的可调比特交换。 还公开了允许在发射机和接收机中可调节地使用符号映射级以允许更多吞吐量和/或降低的复杂度的配置。 允许的映射规则对于接收器和发射器是已知的，因此降低了解码该信息的复杂度。 为了增加EGPRS2通信突发的吞吐量，引入了在BTTI间隔期间不同调制类型或EGPRS / EGPRS2调制和编码方案的RTTI传输，其允许可靠的USF解码和降低的解码器复杂度。

公开(公告)号：US20090063932A1

公开(公告)日：2009-03-05

申请号：US12222346

申请日：2008-08-07

Applicant: Masaki Ishii

Inventor： Masaki Ishii

IPC: H03M13/29 ,  G06F11/10

CPC classification number: H04N1/32251 ,  H04L1/0086 ,  H04N1/32128 ,  H04N2201/3269 ,  H04N2201/3271 ,  H04N2201/3284

Abstract: In an information processing device, error detection information is generated from additional information and a header is generated from error detection information. An encoded header is then generated by appending a header-error correction code to the header and encoded additional information is generated by appending an information-error correction code to the additional information. Finally, an information-appended image is generated by integratedly appending the encoded header and the encoded additional information to the target image.

Abstract translation: 在信息处理装置中，从附加信息生成错误检测信息，并且从错误检测信息生成报头。 然后通过将标题错误校正码附加到标题来生成编码标题，并且通过向附加信息附加信息纠错码来生成编码的附加信息。 最后，通过将编码的标题和编码的附加信息综合地附加到目标图像来生成信息附加图像。

公开(公告)号：US20090022237A1

公开(公告)日：2009-01-22

申请号：US12175255

申请日：2008-07-17

Applicant: Jun WANG ,  Jun TIAN ,  Hiroyuki HAYASHI

Inventor： Jun WANG ,  Jun TIAN ,  Hiroyuki HAYASHI

IPC: H04L27/28

CPC classification number: H04L1/0006 ,  H04L1/007 ,  H04L1/0071 ,  H04L1/0086 ,  H04L5/0044 ,  H04L27/2601

Abstract: The present invention discloses a symbol interleaving and channel mapping device and method as well as a mobile communication system. The symbol interleaving and channel mapping device is used in a transmitter of a mobile communication system, said transmitter receiving the channel state information fed back from a receiver of the mobile communication system; the symbol interleaving and channel mapping device comprises a symbol classification unit for classifying symbols according to their importance; a symbol sub-carrier mapping unit for performing a sub-carrier mapping according to the classification result of said symbol classification unit and the channel state information such that the important symbols correspond to the non deep fading sub-carrier as much as possible.

Abstract translation: 本发明公开了一种符号交织和信道映射设备及方法以及移动通信系统。 符号交织和信道映射设备用于移动通信系统的发射机，所述发射机接收从移动通信系统的接收机反馈的信道状态信息; 符号交织和信道映射设备包括：符号分类单元，用于根据其符号对符号进行分类; 符号子载波映射单元，用于根据所述符号分类单元的分类结果和信道状态信息执行子载波映射，使得重要符号尽可能地对应于非深衰落子载波。

公开(公告)号：US20080232508A1

公开(公告)日：2008-09-25

申请号：US12006094

申请日：2007-12-28

Applicant: Jonas Lindblom ,  Renat Vafin

Inventor： Jonas Lindblom ,  Renat Vafin

IPC: H04L27/00

CPC classification number: H04L1/0014 ,  G10L19/22 ,  H04L1/0086

Abstract: A method of encoding a signal to be transmitted from a terminal via a channel in a communication network includes receiving the signal at the terminal; determining characteristics of the channel; encoding a first portion of the signal in accordance with a first encoding method to produce a first encoded signal portion; and encoding a second portion of the signal in accordance with a second encoding method to produce a second encoded signal portion. The first portion of the signal encoded in accordance with the first encoding method is dependent on the determined characteristics of the channel. The first encoded signal portion and the second encoded signal portion are transmitted via the channel.

Abstract translation: 在通信网络中经由信道对从终端发送的信号进行编码的方法包括在终端接收信号; 确定通道的特性; 根据第一编码方法编码信号的第一部分以产生第一编码信号部分; 以及根据第二编码方法对所述信号的第二部分进行编码以产生第二编码信号部分。 根据第一编码方法编码的信号的第一部分取决于所确定的信道特性。 经由信道发送第一编码信号部分和第二编码信号部分。

公开(公告)号：US20070140377A1

公开(公告)日：2007-06-21

申请号：US10579745

申请日：2004-11-17

Applicant: Yutaka Murakami ,  Kiyotaka Kobayashi ,  Masayuki Orihashi ,  Akihiko Matsuoka ,  Daichi Imamura ,  Rahul Malik

Inventor： Yutaka Murakami ,  Kiyotaka Kobayashi ,  Masayuki Orihashi ,  Akihiko Matsuoka ,  Daichi Imamura ,  Rahul Malik

IPC: H04L27/00 ,  H04L1/02

CPC classification number: H04B7/0413 ,  H04B7/0851 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/0086 ,  H04L1/0618 ,  H04L1/1819 ,  H04L5/0023 ,  H04L25/03229 ,  H04L25/03305 ,  H04L25/03324 ,  H04L25/03891 ,  H04L27/2628 ,  H04L27/265 ,  H04L2025/03414 ,  H04L2025/03611

Abstract: Soft decision sections (503, 506) provisionally decide each modulated signal (502, 505) separated using an inverse matrix calculation of a channel fluctuation matrix at separation section (501). Signal point reduction sections (508, 510, 514, 516) reduce candidate signal points of a multiplexed modulated signal using the provisional decision results (504, 507). Soft decision sections (512, 518) make a correct decision using the reduced candidate signal points and obtain received data (RA, RB) of each modulated signal. This allows received data RA, RB with a good error rate characteristic to be obtained with a relatively small number of calculations without reducing data transmission efficiency.

Abstract translation: 软判决部分（503,506）临时确定在分离部分（501）处使用信道波动矩阵的逆矩阵计算分离的每个调制信号（502,505）。 信号点减少部分（508,510,514,516）使用临时决策结果（504,507）来减少复用的调制信号的候选信号点。 软判决部分（512,518）使用减小的候选信号点进行正确的判定，并获得每个调制信号的接收数据（RA，RB）。 这允许以相对较少数量的计算获得具有良好错误率特性的接收数据RA，RB，而不降低数据传输效率。

公开(公告)号：US20070076581A1

公开(公告)日：2007-04-05

申请号：US11520710

申请日：2006-09-14

Applicant: Yasuhiro Tanaka

Inventor： Yasuhiro Tanaka

IPC: H04J11/00

CPC classification number: H04L1/0086 ,  H04B7/04 ,  H04L1/0003 ,  H04L1/0009 ,  H04L5/0023 ,  H04L5/0058 ,  H04L5/0064 ,  H04L25/0206 ,  H04L27/0008 ,  H04L27/2602 ,  H04L27/2613

Abstract: A control unit generates packet signals while controlling an interface (IF) unit, a modulation unit and a baseband processing unit. While dividing each packet signal into a plurality of partial periods, the control unit assigns data to at least part of each of the plurality of partial periods and sets the rate of data, for a partial period placed anterior to each packet signal, higher than that for a partial period placed posterior to the each packet signal. The IF unit, the modulation unit and the baseband processing unit transmit the packet signals thus generated.

Abstract translation: 控制单元在控制接口（IF）单元，调制单元和基带处理单元的同时产生分组信号。 在将每个分组信号分成多个部分时段期间，控制单元将数据分配给多个部分周期中的每一个的至少一部分，并将数据的速率设置为高于每个分组信号之前的部分时间段 对于在每个分组信号之后的部分周期。 IF单元，调制单元和基带处理单元发送由此产生的分组信号。

公开(公告)号：US20070033486A1

公开(公告)日：2007-02-08

申请号：US11487201

申请日：2006-07-14

Applicant: Song-Nam Hong ,  Jung-Soo Woo ,  Seung-Hoon Park ,  Deok-Ki Kim ,  Su-Ryong Jeong ,  Young-Kyun Kim ,  Dong-Seek Park

Inventor： Song-Nam Hong ,  Jung-Soo Woo ,  Seung-Hoon Park ,  Deok-Ki Kim ,  Su-Ryong Jeong ,  Young-Kyun Kim ,  Dong-Seek Park

IPC: H03M13/00

CPC classification number: H03M13/11 ,  H03M13/1134 ,  H03M13/1194 ,  H03M13/255 ,  H03M13/27 ,  H03M13/356 ,  H03M13/6362 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/0086 ,  H04L1/1812 ,  H04L27/34

Abstract: A channel interleaving method and apparatus in a communication system using a low density parity check (LDPC) code. Upon receipt of information data bits, an encoder encodes the information data bits into an LDPC codeword using a predetermined coding scheme. A channel interleaver interleaves the LDPC codeword according to a predetermined channel interleaving rule. A modulator modulates the channel-interleaved LDPC codeword into a modulation symbol using a predetermined modulation scheme.

Abstract translation: 一种使用低密度奇偶校验（LDPC）码的通信系统中的信道交织方法和装置。 在接收到信息数据位时，编码器使用预定的编码方案将信息数据位编码成LDPC码字。 信道交织器根据预定信道交织规则对LDPC码字进行交织。 调制器使用预定的调制方案将信道交织的LDPC码字调制成调制符号。