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公开(公告)号：US06931077B2
公开(公告)日：2005-08-16
申请号：US10069005
申请日：2001-06-25
CPC分类号： H04W52/265 , H04L1/0001 , H04L1/1819 , H04W52/20 , H04W52/54
摘要： A parity bit generating section 110 generates parity bits of FEC for error correction from transmission data. A transmission power deciding section 111 decides transmission power at the time of retransmitting the parity bits from the number of information bits of transmission data and the number of parity bits. A transmission power controller 112 controls transmission power based on information decided by the transmission power deciding section 111 and outputs the resultant to a radio transmission section 104.
摘要翻译： 奇偶校验位生成部110从发送数据生成用于纠错的FEC的奇偶校验位。 发送功率决定部111根据发送数据的信息比特数和奇偶校验位数来决定重发奇偶校验位时的发送功率。 发送功率控制器112基于由发送功率决定部111决定的信息来控制发送功率，并将其输出到无线发送部104。
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公开(公告)号：US20050135282A1
公开(公告)日：2005-06-23
申请号：US11049728
申请日：2005-02-04
IPC分类号： H04B7/005 , H04W24/00 , H04W28/22 , H04W52/00 , H04W52/02 , H04W52/24 , H04W52/26 , H04W72/12
CPC分类号： H04W28/22 , H04W24/00 , H04W52/0229 , H04W52/0245 , H04W52/0258 , H04W52/24 , H04W52/26 , H04W72/12 , H04W72/1284 , Y02D70/00
摘要： A mobile communication system which is capable of, when carrying out mobile communication using a shared channel, increasing in efficiency of transmission timing of the data transmission rate request value to prevent wasteful power consumption and hence reduce power consumption. The mobile station apparatus 102 of the mobile communication system measures CIR of the received signal from the base station apparatus 101 at the CIR measuring section 306, and decides the data transmission rate request value corresponding to the measured CIR value at the rate request value deciding section 307. Also, it detects an error of the received signal at the CRC section 304, and, when no error is found, calculates a difference between the average data transmission rate from the base station apparatus 101 and the data transmission request value at the rate request value transmission controlling section 308. Then, it transmits the data transmission rate request value to the base station apparatus 101 only when the obtained difference is larger than a threshold value.
摘要翻译： 能够在使用共享信道进行移动通信时能够提高数据传输速率请求值的发送定时的效率的移动通信系统，以防止浪费的功率消耗并因此降低功耗。 移动通信系统的移动站装置102在CIR测量部306测量来自基站装置101的接收信号的CIR，并且在速率请求值判定部分判定与测量的CIR值对应的数据传输率请求值 307。 此外，它检测CRC部分304处的接收信号的错误，并且当没有发现错误时，计算来自基站装置101的平均数据传输速率与速率请求值之间的数据传输请求值之间的差 发送控制部308。 然后，只有当获得的差值大于阈值时，才向基站装置101发送数据传输速率请求值。
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公开(公告)号：US08570910B2
公开(公告)日：2013-10-29
申请号：US12997228
申请日：2009-06-19
IPC分类号： H04L12/16
CPC分类号： H04L5/0044 , H04L5/0007 , H04L5/006 , H04L27/2614
摘要： In DFT-s-OFDM, disclosed are a wireless transmission apparatus and wireless transmission method whereby freedom of allocation of frequencies is secured, while increases of CM are avoided. An SD number determination unit (152) determines an SD number based on the channel quality information of a mobile station and a threshold value that is set by a threshold value setting unit (151). A transmission bandwidth determination unit (153) determines the transmission bandwidth necessary for transmission of the transmission data. An allocation commencement position determination unit (154) determines the position for commencement of allocation of transmission data. If the SD number is equal to or more than the threshold value, a divided bandwidth determination unit (155) sets all the divided bandwidths to equal values and a frequency interval determination unit (156) sets all the frequency intervals to equal values.
摘要翻译： 在DFT-s-OFDM中，公开了一种无线传输装置和无线传输方法，由此可以确保频率分配的自由度，同时避免CM的增加。 SD号码确定单元（152）基于移动站的信道质量信息和由阈值设置单元（151）设置的阈值来确定SD号码。 传输带宽确定单元（153）确定传输数据所需的传输带宽。 分配开始位置确定单元（154）确定开始分发发送数据的位置。 如果SD数等于或大于阈值，则划分带宽确定单元（155）将所有分割带宽设置为相等值，并且频率间隔确定单元（156）将所有频率间隔设置为相等的值。
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公开(公告)号：US08369806B2
公开(公告)日：2013-02-05
申请号：US11908093
申请日：2006-03-10
申请人： Kenichi Miyoshi , Akihiko Nishio , Takashi Iwai , Sadaki Futagi , Katsuhiko Hiramatsu , Daichi Imamura , Takashi Aramaki
发明人： Kenichi Miyoshi , Akihiko Nishio , Takashi Iwai , Sadaki Futagi , Katsuhiko Hiramatsu , Daichi Imamura , Takashi Aramaki
IPC分类号： G06F3/033
CPC分类号： H04L27/2666 , H04L25/03159 , H04L27/2607 , H04L27/2646 , H04L27/2647 , H04L27/2662
摘要： A radio receiver apparatus that can effectively utilize GI to improve the reception quality. In this apparatus, a data extracting part (104) extracts a data portion of a direct wave from a signal subjected to a radio reception process by a received RF part (102). A GI extracting part (107) extracts, from the signal subjected to the radio reception process by the received RF part (102), GI having a length determined by an extracted GI length deciding part (106). The extracted GI is adjusted by a data position adjusting part (108) such that its rear end coincides with the read end of the extracted data portion. A combining part (109) combines the extracted data portion with the GI the data position of which has been adjusted. The combined signal is then supplied to a frequency axis equalizing part (110), which equalizes the signal distortions of the combined signal on the frequency axis.
摘要翻译： 能够有效地利用GI来提高接收质量的无线接收装置。 在该装置中，数据提取部（104）从接收到的RF部（102）的无线接收处理的信号中提取直接波的数据部。 GI提取部分（107）从接收到的RF部分（102）的经过无线电接收处理的信号中提取具有由提取的GI长度确定部分（106）确定的长度的GI。 提取的GI由数据位置调整部（108）调整，使得其后端与提取的数据部分的读取端一致。 组合部分（109）将提取的数据部分与其数据位置已被调整的GI组合。 然后将组合的信号提供给频率轴均衡部分（110），其使得频率轴上的组合信号的信号失真均衡。
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公开(公告)号：US20110170502A1
公开(公告)日：2011-07-14
申请号：US12997228
申请日：2009-06-19
IPC分类号： H04W72/04
CPC分类号： H04L5/0044 , H04L5/0007 , H04L5/006 , H04L27/2614
摘要： In DFT-s-OFDM, disclosed are a wireless transmission apparatus and wireless transmission method whereby freedom of allocation of frequencies is secured, while increases of CM are avoided. An SD number determination unit (152) determines an SD number based on the channel quality information of a mobile station and a threshold value that is set by a threshold value setting unit (151). A transmission bandwidth determination unit (153) determines the transmission bandwidth necessary for transmission of the transmission data. An allocation commencement position determination unit (154) determines the position for commencement of allocation of transmission data. If the SD number is equal to or more than the threshold value, a divided bandwidth determination unit (155) sets all the divided bandwidths to equal values and a frequency interval determination unit (156) sets all the frequency intervals to equal values.
摘要翻译： 在DFT-s-OFDM中，公开了一种无线传输装置和无线传输方法，由此可以确保频率分配的自由度，同时避免CM的增加。 SD号码确定单元（152）基于移动站的信道质量信息和由阈值设置单元（151）设置的阈值来确定SD号码。 传输带宽确定单元（153）确定传输数据所需的传输带宽。 分配开始位置确定单元（154）确定开始分发发送数据的位置。 如果SD数等于或大于阈值，则分频带宽确定单元（155）将所有分频带宽设置为相等值，并且频率间隔确定单元（156）将所有频率间隔设置为相等的值。
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46.发明申请RADIO COMMUNICATION TERMINAL DEVICE, RADIO COMMUNICATION BASE STATION DEVICE, AND CQI FEEDBACK METHOD 审中-公开无线电通信终端设备，无线电通信基站设备和CQI反馈方法公开(公告)号：US20100309997A1
公开(公告)日：2010-12-09
申请号：US12745461
申请日：2008-12-09
IPC分类号： H04L27/28
CPC分类号： H04L1/0026 , H04L1/0029
摘要： It is possible to provide a radio communication terminal device, a radio communication base station device, and a CQI feedback method which can improve the CQI reproducibility while reducing the feedback overhead. A terminal channel judgment unit judges whether a local terminal is a TU terminal or a LOS terminal. A feedback CQI decision unit selects a Best-M report if the local terminal is the TU terminal, and selects a DCT report if the local terminal is the LOS terminal. The feedback CQI decision unit feeds back the CQI by using the selected report method.
摘要翻译： 可以提供能够在降低反馈开销的同时提高CQI再现性的无线通信终端装置，无线通信基站装置和CQI反馈方法。 终端信道判断单元判断本地终端是TU终端还是LOS终端。 如果本地终端是TU终端，则反馈CQI决定单元选择Best-M报告，并且如果本地终端是LOS终端，则选择DCT报告。 反馈CQI判定单元使用所选择的报告方法反馈CQI。
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47.发明申请公开(公告)号：US20100290548A1
公开(公告)日：2010-11-18
申请号：US12809701
申请日：2008-10-23
IPC分类号： H04K1/10
CPC分类号： H04B7/0452 , H04B7/0417 , H04B7/0426 , H04B7/0632 , H04L1/0025 , H04L1/0026 , H04L1/0036 , H04W72/08
摘要： When power scaling is applied to multi-user MIMO, a reduction in transmission rate is suppressed and transmission efficiency is improved. When signals are transmitted through spatial multiplexing from a wireless base station 11 to a plurality of pieces of user equipment 12 and 13, notification of a transmission parameter (MCS) of the distant user equipment (UE-B) 13 is provided as control information to the adjacent user equipment (UE-A) 12. The user equipment 12 calculates, based on the received control information, a reception quality (CQI) after cancellation of a signal serving as an interference signal and destined for the other user equipment 13, and feeds back the calculated result to the wireless base station 11. Based on this feedback, the wireless base station 11 sets a transmission parameter (MCS) of each piece of the user equipment 12 and 13 using the CQI after the cancellation, and transmits signals intended for respective users through spatial multiplexing after performing power distribution between the users by power scaling.
摘要翻译： 当对多用户MIMO进行功率缩放时，传输速率的降低被抑制并且传输效率提高。 当通过空中复用将信号从无线基站11发送到多个用户设备12和13时，提供远程用户设备（UE-B）13的传输参数（MCS）的通知作为控制信息 相邻用户设备（UE-A）12。用户设备12基于接收到的控制信息计算消除用作干扰信号并发往另一用户设备13的信号后的接收质量（CQI），以及 将计算结果反馈给无线基站11.基于该反馈，无线基站11在消除之后使用CQI来设置用户设备12和13的每一段的传输参数（MCS），并发送预期的信号 通过功率缩放在用户进行功率分配之后通过空间复用对各个用户进行。
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公开(公告)号：US07782896B2
公开(公告)日：2010-08-24
申请号：US12063843
申请日：2006-08-18
申请人： Kenichi Kuri , Akihiko Nishio , Daichi Imamura , Kenichi Miyoshi , Takashi Aramaki , Katsuhiko Hiramatsu
发明人： Kenichi Kuri , Akihiko Nishio , Daichi Imamura , Kenichi Miyoshi , Takashi Aramaki , Katsuhiko Hiramatsu
IPC分类号： H04J3/16
CPC分类号： H04L27/2602 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0028 , H04L1/08 , H04L1/1812
摘要： Provided is a wireless communication apparatus by which the maximum throughput can be obtained while satisfying required reception qualities in multicarrier communication. In the apparatus, a coding section (101) performs error correction coding to all of the plurality of resource blocks at a same coding rate, modulating sections (103-1 to 103-n) generate data symbols by modulating coding data for each of the resource blocks (1 to n), and repetition sections (104-1 to 104-n) repeat the data symbols inputted from the modulation section (103) for each of the resource blocks (1 to n) to generate a plurality of same data symbols. Namely, while the coding rate is same in all of the resource blocks, modulation system and the number of repetitions differ by resource block.
摘要翻译： 提供一种在多载波通信中满足所需接收质量的同时能够获得最大吞吐量的无线通信装置。 在该装置中，编码部（101）以相同的编码率对所有多个资源块进行纠错编码，调制部（103-1〜103-n）通过调制编码数据 资源块（1〜n）和重复部分（104-1〜104-n）对于每个资源块（1〜n）重复从调制部（103）输入的数据符号，生成多个相同的数据 符号。 也就是说，尽管编码率在所有资源块中相同，但调制系统和重复次数因资源块而不同。
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公开(公告)号：US20050197161A1
公开(公告)日：2005-09-08
申请号：US11121028
申请日：2005-05-04
IPC分类号： H04J13/00 , H04B1/707 , H04B7/005 , H04B7/26 , H04W28/14 , H04W52/04 , H04W52/24 , H04W52/40 , H04W72/08 , H04W72/14 , H04W84/04 , H04B7/00
CPC分类号： H04W28/14 , H04L1/0009 , H04L1/0015 , H04L1/0032 , H04L1/0034 , H04W52/24 , H04W52/40 , H04W72/085 , H04W72/14 , H04W84/04
摘要： A base station transmits downlink signals to mobile terminals of users A to C with respective transmission power corresponding to downlink quality. A downlink quality estimating section (106) uses the transmission power from a transmission power control section to compare transmission power between the users, and estimates that a terminal with low transmission power has high downlink quality. The priorities are determined so that the priority is increased as the transmission power is lower. Thus determined priority information is output to a scheduling section (107). The scheduling section (107) performs scheduling based on the priority information. The section (107) assigns DSCH to terminals in ascending order of transmission power. User A is first assigned DSCH, user B is second assigned DSCH, and user C is third assigned DSCH. It is thus possible to perform scheduling and MCS selection of DSCH with the need of information from a terminal eliminated.
摘要翻译： 基站以对应于下行链路质量的相应发送功率向用户A至C的移动终端发送下行链路信号。 下行链路质量估计部106使用来自发送功率控制部的发送功率来比较用户之间的发送功率，并且估计发送功率低的终端具有较高的下行链路质量。 确定优先级，使得优先级随着传输功率的降低而增加。 这样确定的优先级信息被输出到调度部分（107）。 调度部（107）基于优先级信息进行调度。 部分（107）以发送功率的升序将DSCH分配给终端。 用户A首先分配DSCH，用户B是第二分配DSCH，用户C是第三分配DSCH。 因此，可以根据消除来自终端的信息的需要来执行DSCH的调度和MCS选择。
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公开(公告)号：US20050002358A1
公开(公告)日：2005-01-06
申请号：US10902580
申请日：2004-07-30
CPC分类号： H04L1/0015 , H04L1/0003 , H04L1/0025
摘要： PL demodulation section 203 demodulates pilot signals of a received signal. SIR detection section 205 detects the reception quality of the demodulated pilot signals. fd detection section 206 detects a Doppler frequency using the demodulated pilot signals. Requested modulation method deciding section 207 decides a modulation method to be requested to the base station using the reception quality of pilot signals and the detected Doppler frequency. Command generation section 208 generates a command corresponding to the decided modulation method. Adaptive demodulation section 204 performs demodulation processing on the received signal using the demodulation method corresponding to the modulation method decided by requested modulation method deciding section 207. This makes it possible to maintain good reception quality even in a fading environment.
摘要翻译： PL解调单元203对接收信号的导频信号进行解调。 SIR检测部件205检测解调的导频信号的接收质量。 fd检测部206使用解调的导频信号来检测多普勒频率。 请求调制方式决定部207使用导频信号的接收质量和检测到的多普勒频率来决定向基站请求的调制方式。 命令生成部208生成与决定的调制方式对应的命令。 自适应解调部204使用与由请求调制方式决定部207决定的调制方式相对应的解调方式，对接收信号进行解调处理。即使在衰落环境中也能够保持良好的接收质量。
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