Radio Transmitter and Pilot Signal Inserting Method
    41.
    发明申请
    Radio Transmitter and Pilot Signal Inserting Method 审中-公开
    无线电发射机和导频信号插入方法

    公开(公告)号:US20080107158A1

    公开(公告)日:2008-05-08

    申请号:US11718655

    申请日:2005-11-07

    摘要: A radio transmitter and a pilot signal inserting method are provided for improving throughput. In the radio transmitter, an MCS deciding part (106) selects one of a plurality of modulating systems. An information generating part (108) decides an inserting position of a pilot signal corresponding to the selected modulating system. A modulating part (116) modulates a data signal by the selected modulating system. A signal arranging part (118) inserts the pilot signal into the modulated data signal and changes the inserting position of the pilot signal corresponding to the selected modulating system. A transmission RF part (124) transmits the data signal wherein the pilot signal is inserted.

    摘要翻译: 提供无线电发射机和导频信号插入方法以提高吞吐量。 在无线电发射机中,MCS决定部分(106)选择多个调制系统中的一个。 信息生成部(108)决定与所选择的调制系统对应的导频信号的插入位置。 调制部分(116)通过所选择的调制系统调制数据信号。 信号排列部(118)将导频信号插入调制数据信号,并改变对应于所选择的调制系统的导频信号的插入位置。 发送RF部分(124)发送其中插入导频信号的数据信号。

    Radio communication base station device, radio communication mobile station device, and radio communication method
    42.
    发明授权
    Radio communication base station device, radio communication mobile station device, and radio communication method 有权
    无线通信基站装置,无线通信移动站装置,无线通信方式

    公开(公告)号:US07369621B2

    公开(公告)日:2008-05-06

    申请号:US10516182

    申请日:2003-07-03

    IPC分类号: H04L23/02

    摘要: In order to perform appropriate reception quality control on each mobile station in a multimedia broadcast/multicast service, a layered coding section 101 encodes input data by dividing the input data into two layers and obtains a first layer code string and a second layer code string. The first layer code string is input to a CRC code addition section 102 and a CRC code for an error inspection is added thereto at every predetermined block. On the other hand, the second layer code string is input to a CRC code addition section 103 and a CRC code for an error inspection is added thereto at every predetermined block. The first layer code string and the second layer code string with the CRC codes added are input to a layered modulation section 104 and the layered modulation section 104 modulates a plurality of code strings coded by being divided into a plurality of layers in such away that error rates differ hierarchically among the plurality of code strings and a radio section 105 sends the modulated symbol.

    摘要翻译: 为了对多媒体广播/多播服务中的每个移动台执行适当的接收质量控制,分层编码部分101通过将输入数据分成两层来编码输入数据,并获得第一层代码串和第二层代码串。 第一层代码串被输入到CRC码添加部分102,并且在每个预定的块处添加用于错误检查的CRC码。 另一方面,第二层代码串被输入到CRC码附加部分103,并且在每个预定的块处添加用于错误检查的CRC码。 第一层代码串和添加有CRC码的第二层代码串被输入到分层调制部分104,并且分层调制部分104调制通过被分成多个层而编码的多个代码串,这样的错误 速率在多个代码串之间分级地不同,并且无线电部分105发送调制符号。

    Communication terminal apparatus, base station apparatus, and radio communication method
    43.
    发明授权
    Communication terminal apparatus, base station apparatus, and radio communication method 有权
    通信终端装置,基站装置和无线通信方法

    公开(公告)号:US07155170B2

    公开(公告)日:2006-12-26

    申请号:US11304537

    申请日:2005-12-16

    IPC分类号: H04B17/00

    摘要: A retransmission request signal creation section (119) outputs an ACK signal or NACK signal to a NACK signal counting section (120) based on the result of error detection by an error detection section (118), the NACK signal counting section (120) counts, for each communication mode, the number of NACK signals output (that is, the number of data retransmissions) before an ACK signal is output from the retransmission request signal creation section (119), and a table rewriting section (121) compares the number of retransmissions counted by the NACK signal counting section (120) with a predetermined threshold value for the number of retransmissions, and rewrites the contents of a communication mode table (102) based on the result of this comparison.

    摘要翻译: 重传请求信号生成部(119)基于错误检测部(118)的错误检测结果向NACK信号计数部(120)输出ACK信号或NACK信号,NACK信号计数部(120)计数 对于每个通信模式,从重传请求信号创建部分(119)输出ACK信号之前输出的NACK信号的数量(即数据重传次数),以及表重写部分(121)将数字 由NACK信号计数部(120)计算出的重发次数的预定阈值的重发次数,并根据该比较结果重写通信模式表(102)的内容。

    Ofdm reception device and ofdm reception method
    45.
    发明申请
    Ofdm reception device and ofdm reception method 审中-公开
    Ofdm接收设备和接收方式

    公开(公告)号:US20060198292A1

    公开(公告)日:2006-09-07

    申请号:US10550092

    申请日:2004-03-29

    IPC分类号: H04J11/00 H04B3/10

    摘要: An interference power calculation section 208 calculates an interference power value of each symbol according to a calculation expression (interference power=average power of parts unaffected by interference+average power of parts affected by interference) and notifies a turbo decoding section 209 of the calculated interference power value. The turbo decoding section 209 calculates σ2 used to calculate an LLR of turbo decoding according to a calculation expression (σ2=thermal noise+interference power) based on the interference power value notified from the interference power calculation section 208 and thereby changes σ2 based on the interference power value for each symbol notified from the interference power calculation section 208.

    摘要翻译: 干扰功率计算部208根据计算式(干扰功率=不受干扰影响的部分的平均功率+受到干扰的部分的平均功率)来计算每个符号的干扰功率值,并向turbo解码部209通知所计算的干扰 功率值。 turbo解码单元209基于干扰功率,根据计算表达式(sigma 2 =热噪声+干扰功率)来计算用于计算turbo解码的LLR的西格玛< 2> 从干扰功率计算部208通知的值,从而基于从干扰功率计算部208通知的每个符号的干扰功率值来改变σ 2。

    Communication terminal apparatus, base station apparatus and radio communication method
    46.
    发明授权
    Communication terminal apparatus, base station apparatus and radio communication method 有权
    通信终端装置,基站装置和无线通信方式

    公开(公告)号:US07006798B2

    公开(公告)日:2006-02-28

    申请号:US10110942

    申请日:2001-08-21

    IPC分类号: H04B17/00

    摘要: A retransmission request signal creation section (119) outputs an ACK signal or NACK signal to a NACK signal counting section(120) based on the result of error detection by an error detection section(118), the NACK signal counting section(120) counts, for each communication mode, the number of NACK signals output (that is, the number of data retransmissions) before an ACK signal is output from the retransmission request signal creation section(119), and a table rewriting section(121) compares the number of retransmissions counted by the NACK signal counting section(120) with a predetermined threshold value for the number of retransmissions, and rewrites the contents of a communication mode table(102) based on the result of this comparison.

    摘要翻译: 重传请求信号生成部(119)基于错误检测部(118)的错误检测结果向NACK信号计数部(120)输出ACK信号或NACK信号,NACK信号计数部(120)计数 对于每个通信模式,从重传请求信号创建部分(119)输出ACK信号之前输出的NACK信号的数量(即数据重传次数),以及表重写部分(121)将数字 由NACK信号计数部(120)计算出的重发次数的预定阈值的重发次数,并根据该比较结果重写通信模式表(102)的内容。

    Transmission power deciding apparatus and transmission power deciding method
    47.
    发明申请
    Transmission power deciding apparatus and transmission power deciding method 审中-公开
    发射功率决定装置和发射功率决定方法

    公开(公告)号:US20050272456A1

    公开(公告)日:2005-12-08

    申请号:US10516365

    申请日:2003-12-17

    IPC分类号: H04B7/26 H04B7/005 H04Q7/20

    CPC分类号: H04W52/04

    摘要: In a multimedia broadcast/multicast service, in order to control the ratio of mobile stations capable of receiving information with high quality among mobile stations existing in a cell, a modulation section modulates a first layer code string and second layer code string heaving hierarchically different error rates into a symbol including both layer code strings, a target value storage section stores a target value corresponding to the ratio of high quality mobile stations which receive both the first layer code string and second layer code string without errors, a transmit power determining section determines to increase transmit power when the ratio of high quality mobile stations calculated by a ratio calculation section is less than a target value stored in the target value storage section and a transmit power control section increases transmit power of the modulated symbol according to the determination.

    摘要翻译: 在多媒体广播/组播服务中,为了控制能够在存在于小区中的移动台之间接收高质量的信息的移动站的比例,调制部分调制第一层码字串和第二层码字串,使层次不同的错误 速率转换为包括两层码串的符号,目标值存储部存储与没有错误接收第一层代码串和第二层代码串的高质量移动站的比率相对应的目标值,发送功率确定部分确定 当由比率计算部分计算的高质量移动台的比例小于存储在目标值存储部分中的目标值时,增加发射功率,并且发射功率控制部分根据该确定增加调制符号的发射功率。

    Base station apparatus and communication method for mapping control data and user data
    48.
    发明授权
    Base station apparatus and communication method for mapping control data and user data 有权
    用于映射控制数据和用户数据的基站装置和通信方法

    公开(公告)号:US08467797B2

    公开(公告)日:2013-06-18

    申请号:US12643507

    申请日:2009-12-21

    IPC分类号: H04W72/00

    摘要: In order to reduce interference between cells through hopping and use frequencies in a good propagation situation, a scheduler section 102 carries out scheduling for determining to which user data should be sent using CQI from each communication terminal apparatus, selects a user signal to be sent in the next frame and determines in which subcarrier block the data should be sent. An MCS decision section 103 selects a modulation scheme and coding method from the CQI of the selected user signal. A subcarrier block selection section 110 selects a subcarrier block instructed by the scheduler section 102 for each user signal. For the respective subcarrier blocks, FH sequence selection sections 111-1 to 111-n select hopping patterns. A subcarrier mapping section 112 maps the user signal and control data to subcarriers according to the selected hopping pattern.

    摘要翻译: 为了在良好的传播情况下通过跳频和使用频率来减少小区之间的干扰,调度器部分102执行用于确定应当使用来自每个通信终端装置的CQI发送哪个用户数据的调度,选择要发送的用户信号 确定下一帧并确定哪个子载波块应该发送数据。 MCS判定部103从所选择的用户信号的CQI中选择调制方式和编码方式。 子载波块选择单元110选择由调度器单元102指示的每个用户信号的子载波块。 对于各子载波块,FH序列选择部111-1〜111-n选择跳频图案。 副载波映射部分112根据选择的跳频模式将用户信号和控制数据映射到子载波。

    Base station apparatus that communicates with mobile station apparatuses, mobile station apparatus that communicates with a base station and transmission band setting method performed in a base station
    49.
    发明授权
    Base station apparatus that communicates with mobile station apparatuses, mobile station apparatus that communicates with a base station and transmission band setting method performed in a base station 有权
    与移动站装置通信的基站装置,与基站进行通信的移动站装置以及在基站中执行的发送频带设定方法

    公开(公告)号:US08401051B2

    公开(公告)日:2013-03-19

    申请号:US13311292

    申请日:2011-12-05

    IPC分类号: H04B1/713

    摘要: A base station effectively transmits BCH data and includes an encoding unit for encoding the BCH data; a modulation unit for modulating the BCH data after being encoded; a transmission band setting unit for setting a BCH data transmission band in one of sub carriers constituting an OFDM symbol; encoding units for encoding user data, modulation units for modulating user data after being encoded; and an IFFT unit for mapping the BCH data and the user data to each of the sub carriers and performing IFFT to generate an OFDM symbol. Here, the IFFT unit maps the BCH data to the sub carrier existing in the transmission band set by the transmission band setting unit among the plurality of sub carriers.

    摘要翻译: 基站有效地发送BCH数据,并且包括用于对BCH数据进行编码的编码单元; 调制单元,用于在编码之后调制所述BCH数据; 传输频带设置单元,用于在构成OFDM符号的子载波之一中设置BCH数据传输频带; 用于编码用户数据的编码单元,用于在编码之后调制用户数据的调制单元; 以及用于将BCH数据和用户数据映射到每个子载波并执行IFFT以生成OFDM符号的IFFT单元。 这里,IFFT单元将BCH数据映射到由多个子载波中的传输频带设置单元设置的传输频带中存在的副载波。

    Data transmissions in a mobile communication system employing diversity and constellation rearrangement of a 16 QAM scheme
    50.
    发明授权
    Data transmissions in a mobile communication system employing diversity and constellation rearrangement of a 16 QAM scheme 有权
    采用16QAM方案的分集和星座重排的移动通信系统中的数据传输

    公开(公告)号:US08270531B2

    公开(公告)日:2012-09-18

    申请号:US13073736

    申请日:2011-03-28

    IPC分类号: H04L27/36 H04L5/12

    CPC分类号: H04L27/34 H04L1/0045

    摘要: The invention relates to methods for transmitting and receiving a data bit stream in a communication system using 16-QAM constellations. Further, an apparatus for performing the methods is provided. To improve the bit-error rate performance of the communication using the 16-QAM constellations the invention suggests the use 16-QAM constellations with specially selected mapping rules together with a special constellation rearrangement for creating different versions of the 16-QAM constellations. Further, the data stream is transmitted according to a diversity scheme employing different versions of the 16-QAM constellations obtained adhering the mapping rules and rearrangement rules defined by the invention.

    摘要翻译: 本发明涉及在使用16-QAM星座的通信系统中发送和接收数据比特流的方法。 此外,提供了一种用于执行该方法的装置。 为了提高使用16-QAM星座的通信的误码率性能,本发明建议使用具有特别选择的映射规则的16-QAM星座以及用于创建不同版本的16-QAM星座的特殊星座重排。 此外,数据流是根据采用不同版本的16-QAM星座的分集方案进行传输的,这些版本遵循了本发明所定义的映射规则和重排规则。