公开(公告)号：US08934848B2

公开(公告)日：2015-01-13

申请号：US10566732

申请日：2004-08-04

申请人： Akihiko Nishio ,  Jun Cheng

发明人： Akihiko Nishio ,  Jun Cheng

IPC分类号： H04W24/10 ,  H04L1/00 ,  H04L5/00 ,  H04W72/12 ,  H04L1/16 ,  H04W28/06

CPC分类号： H04L1/0026 ,  H04L1/1671 ,  H04L5/003 ,  H04L5/0044 ,  H04L5/0046 ,  H04L5/0053 ,  H04L5/006 ,  H04W24/10 ,  H04W28/06 ,  H04W72/1231 ,  H04W72/1284 ,  Y02D70/00 ,  Y02D70/1244

摘要： A wireless communication apparatus is provided including: a radio receiver configured to acquire, from a base station, a first information indicating a fixed number identifying quantity of sub-carrier bands to be selected for channel quality reporting; a reception quality measurer configured to measure channel quality of each of a plurality of sub-carrier bands within a communication band; a subcarrier selector configured to select sub-carrier bands from the plurality of sub-carrier bands based on the measured channel quality, wherein quantity of the selected sub-carrier bands matches the quantity of sub-carrier bands identified by the fixed number; a modulator configured to modulate a second information indicating channel quality of the selected sub-carrier bands and a third information indicating positions of the selected sub-carrier bands according to a modulation scheme; and a radio transmitter configured to report to the base station the second and third modulated information.

摘要翻译： 提供一种无线通信装置，包括：无线接收器，被配置为从基站获取指示要选择的用于信道质量报告的子载波频带的固定数量的固定数量的第一信息; 接收质量测量器，被配置为测量通信频带内的多个子载波频带中的每一个的信道质量; 配置为基于所测量的信道质量从所述多个子载波频带中选择子载波频带的子载波选择器，其中所选择的子载波频带数量与由所述固定数量标识的子载波频带数量匹配; 调制器，被配置为根据调制方式调制指示所选择的子载波频带的信道质量的第二信息和指示所选择的子载波频带的位置的第三信息; 以及无线发射机，被配置为向基站报告第二和第三调制信息。

公开(公告)号：US07873000B2

公开(公告)日：2011-01-18

申请号：US10591712

申请日：2005-02-28

申请人： Jun Cheng ,  Akihiko Nishio ,  Kenichi Miyoshi

发明人： Jun Cheng ,  Akihiko Nishio ,  Kenichi Miyoshi

IPC分类号： H04Q7/00

CPC分类号： H04W72/0413 ,  H04W36/16 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/087 ,  H04W72/10 ,  H04W74/004 ,  H04W74/0833 ,  H04W88/08

摘要： There are disclosed a random access method for establishing an individual channel between a radio communication terminal device and a base station device in a short time and a radio communication terminal device executing the random access method. In this device, in step ST320, a RACH sub-channel allocation unit (211) allocates a transmission packet inputted from a replication unit (202) to an arbitrary sub-carrier at the RACH arbitrary time slot at random. In step ST330, an allocation unit (210) judges whether an overlap is generated in the allocation result obtained by the RACH sub-channel allocation unit (211). When the allocation unit (210) judges that an overlap is generated in the allocation result, the allocation unit (210) causes one of the RACH sub-channel allocation units (211) which has caused the overlap to again perform allocation of step ST320. On the other hand, when judgment is made that no overlap is generated in the allocation result, step ST340 is executed.

公开(公告)号：US20070253498A1

公开(公告)日：2007-11-01

申请号：US11573174

申请日：2005-07-12

申请人： Atsushi Matsumoto ,  Jun Cheng ,  Masayuki Hoshino ,  Akihiko Nishio

发明人： Atsushi Matsumoto ,  Jun Cheng ,  Masayuki Hoshino ,  Akihiko Nishio

IPC分类号： H04L27/28

CPC分类号： H04L27/2614 ,  H04L27/2608

摘要： A radio transmitting apparatus wherein unnecessary consumption of transmission power can be suppressed and PAPR (Peak to Average Power Ratio) can be reduced in multicarrier communication. In the apparatus, a repetition part (105) replicates (repeats) each symbol outputted from a modulating part (103) to generate and output a plurality of identical symbols to an S/P part (107), which converts the symbol sequence outputted in series from the repetition part (105) into parallel symbol sequences and outputs them to an interleaver (109). The interleaver (109) then reorders the symbol sequences outputted from the S/P part (107) and outputs them to a mapping part (111), which removes, in accordance with the propagation path quality of each of subcarriers constituting OFDM symbols that are multicarrier signals, some of the identical symbols as replicated by the repetition part (105) and then maps the rest of the symbols onto subcarriers for application to an IFFT part (113).

摘要翻译： 能够抑制发送功率不必要的消耗的无线发送装置，在多载波通信中可以减少PAPR（峰均功率比）。 在该装置中，重复部分（105）对从调制部分（103）输出的每个符号进行复制（重复），以产生并输出多个相同的符号给S / P部分（107），该S / P部分（107）将输出的符号序列 从重复部分（105）输出到并行符号序列，并将其输出到交织器（109）。 交织器（109）然后重新排序从S / P部分（107）输出的符号序列，并将其输出到映射部分（111），该映射部分根据构成OFDM符号的每个子载波的传播路径质量去除 多载波信号，由重复部分（105）复制的一些相同符号，然后将其余的符号映射到子载波上，以应用于IFFT部分（113）。

公开(公告)号：US20070202904A1

公开(公告)日：2007-08-30

申请号：US10591951

申请日：2005-03-08

申请人： Jun Cheng ,  Akihiko Nishio

发明人： Jun Cheng ,  Akihiko Nishio

IPC分类号： H04Q7/20 ,  H04B7/00

CPC分类号： H04W72/1231 ,  H04L5/026

摘要： A scheduling method and base station apparatus capable of maintaining an upstream line transfer rate in a local cell, while suppressing an adverse affection, which would otherwise be caused by interference, on another cell, that is, the reduction of an upstream line transfer rate in the other cell. In the apparatus, an upstream scheduler (120) calculates, based on a measurement result of reception SIR for each of the subcarriers of the upstream signals of the respective wireless communication terminal apparatuses (200), an average reception SIR of each upstream signal thereof, and then sequentially selects ones of the wireless communication terminal apparatuses (200) having lower calculated average reception SIRs. In addition, the upstream scheduler (120) assigns, to the selected ones of the wireless communication terminal apparatuses (200), upstream signal subcarriers that have not been assigned, in such a manner that sequentially assigns ones of the upstream signal subcarriers having higher reception SIRs and indicated by the measurement results of the selected wireless communication terminal apparatuses (200) received from a reception quality measuring part (112).

摘要翻译： 一种能够在本地小区中维持上游线路传输速率的调度方法和基站装置，同时抑制另一小区上由干扰引起的不利影响，即减少上行线路传输速率 另一个单元格。 在该装置中，上游调度器（120）根据各无线通信终端装置（200）的上行信号的每个子载波的接收SIR的测定结果，计算其上游信号的平均接收SIR， 然后顺序地选择具有较低计算出的平均接收SIR的无线通信终端装置（200）。 此外，上游调度器（120）向所选择的无线通信终端装置（200）分配未被分配的上行信号副载波，以便顺序地分配具有较高接收的上行信号副载波中的一个 并且由从接收质量测量部分（112）接收的所选择的无线通信终端装置（200）的测量结果指示。

公开(公告)号：US20070121737A1

公开(公告)日：2007-05-31

申请号：US10573687

申请日：2004-09-27

申请人： Isamu Yoshii ,  Kenichi Miyoshi ,  Jun Cheng ,  Akihiko Nishio ,  Masaru Fukuoka

发明人： Isamu Yoshii ,  Kenichi Miyoshi ,  Jun Cheng ,  Akihiko Nishio ,  Masaru Fukuoka

IPC分类号： H04K1/10

CPC分类号： H04L27/2618 ,  H04L1/0003 ,  H04L1/0009

摘要： A transmission apparatus capable of improving overall throughput of a system by suppressing peaks using some frequencies in a communication band. In this apparatus, modulation section (102) adaptively modulates transmission data. Combination section (103) combines the waveform of the transmission data and an inverse replica and suppresses peaks equal to or higher than a threshold. When there are peaks equal to or higher than a threshold, inverse replica generation section (112) extracts the waveform of a peak equal to or higher than the threshold and generates an inverse replica which is the waveform having the inverse characteristic of the extracted waveform. Sub-band selection section (114) selects frequencies of subcarriers for which MCS having low transmission efficiency is selected and outputs the inverse replica within the range of the selected frequency to combination section (103).

摘要翻译： 一种传输装置，其能够通过抑制通信频带中的一些频率的峰值来提高系统的整体吞吐量。 在该装置中，调制部（102）自适应地调制发送数据。 组合部（103）组合发送数据的波形和逆副本，并抑制等于或高于阈值的峰值。 当存在等于或高于阈值的峰值时，逆副本生成部分（112）提取等于或高于阈值的峰值的波形，并产生具有所提取波形的逆特性的波形的逆副本。 子带选择部（114）选择选择了低传输效率的MCS的子载波的频率，并将所选频率的范围内的逆副本输出到组合部（103）。

公开(公告)号：US08391215B2

公开(公告)日：2013-03-05

申请号：US13461527

申请日：2012-05-01

申请人： Jun Cheng ,  Akihiko Nishio

发明人： Jun Cheng ,  Akihiko Nishio

IPC分类号： H04B7/216 ,  H04J7/00

CPC分类号： H04L5/0057 ,  H04B7/0621 ,  H04B7/0632 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0042 ,  H04L5/0053 ,  H04L5/006 ,  H04L5/0064 ,  H04L5/0094 ,  H04L27/2601 ,  H04W24/02 ,  H04W24/08 ,  H04W64/003 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/085

摘要： A wireless communication apparatus is capable of improving communication efficiency by reducing the amount of control information transmitted. A channel quality information extraction section extracts CQI's from a received signal. An allocation control section allocates subcarriers for every communication terminal apparatus and selects a modulation scheme in such a manner that required transmission rate is satisfied for each communication terminal apparatus based on required transmission rate information, etc. and CQI's for communication terminal apparatus of each user. A required subcarrier number determining section decides the number of subcarriers allocated to every communication terminal apparatus so as to satisfy the required transmission rate for each communication terminal apparatus. A required subcarrier number information generating section generates information for the number of subcarriers allocated to every communication terminal apparatus. A subcarrier allocation section allocates packet data to selected subcarriers. Modulating sections adaptively modulate packet data allocated to each subcarrier.

公开(公告)号：US08000295B2

公开(公告)日：2011-08-16

申请号：US12965641

申请日：2010-12-10

申请人： Jun Cheng ,  Akihiko Nishio ,  Kenichi Miyoshi

发明人： Jun Cheng ,  Akihiko Nishio ,  Kenichi Miyoshi

IPC分类号： H04W4/00

CPC分类号： H04W72/0413 ,  H04W36/16 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/087 ,  H04W72/10 ,  H04W74/004 ,  H04W74/0833 ,  H04W88/08

摘要： There are disclosed a random access method for establishing an individual channel between a radio communication terminal device and a base station device in a short time and a radio communication terminal device executing the random access method. In this device, in step ST320, a RACH sub-channel allocation unit (211) allocates a transmission packet inputted from a replication unit (202) to an arbitrary sub-carrier at the RACH arbitrary time slot at random. In step ST330, an allocation unit (210) judges whether an overlap is generated in the allocation result obtained by the RACH sub-channel allocation unit (211). When the allocation unit (210) judges that an overlap is generated in the allocation result, the allocation unit (210) causes one of the RACH sub-channel allocation units (211) which has caused the overlap to again perform allocation of step ST320. On the other hand, when judgment is made that no overlap is generated in the allocation result, step ST340 is executed.

摘要翻译： 公开了一种用于在短时间内在无线电通信终端设备和基站设备之间建立单独信道的随机接入方法和执行随机接入方法的无线电通信终端设备。 在该装置中，在步骤ST320中，RACH子信道分配单元（211）随机地将从复制单元（202）输入的发送分组分配给RACH任意时隙的任意子载波。 在步骤ST330中，分配单元（210）判断在由RACH子信道分配单元（211）获得的分配结果中是否生成了重叠。 当分配单元（210）判定在分配结果中产生重叠时，分配单元（210）使引起重叠的RACH子信道分配单元（211）中的一个再次执行步骤ST320的分配。 另一方面，当判断在分配结果中没有产生重叠时，执行步骤ST340。

公开(公告)号：US20110081916A1

公开(公告)日：2011-04-07

申请号：US12965641

申请日：2010-12-10

申请人： Jun Cheng ,  Akihiko Nishio ,  Kenichi Miyoshi

发明人： Jun Cheng ,  Akihiko Nishio ,  Kenichi Miyoshi

IPC分类号： H04W72/04

CPC分类号： H04W72/0413 ,  H04W36/16 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/087 ,  H04W72/10 ,  H04W74/004 ,  H04W74/0833 ,  H04W88/08

摘要： There are disclosed a random access method for establishing an individual channel between a radio communication terminal device and a base station device in a short time and a radio communication terminal device executing the random access method. In this device, in step ST320, a RACH sub-channel allocation unit (211) allocates a transmission packet inputted from a replication unit (202) to an arbitrary sub-carrier at the RACH arbitrary time slot at random. In step ST330, an allocation unit (210) judges whether an overlap is generated in the allocation result obtained by the RACH sub-channel allocation unit (211). When the allocation unit (210) judges that an overlap is generated in the allocation result, the allocation unit (210) causes one of the RACH sub-channel allocation units (211) which has caused the overlap to again perform allocation of step ST320. On the other hand, when judgment is made that no overlap is generated in the allocation result, step ST340 is executed.

摘要翻译： 公开了一种用于在短时间内在无线电通信终端设备和基站设备之间建立单独信道的随机接入方法和执行随机接入方法的无线电通信终端设备。 在该装置中，在步骤ST320中，RACH子信道分配单元（211）随机地将从复制单元（202）输入的发送分组分配给RACH任意时隙的任意子载波。 在步骤ST330中，分配单元（210）判断在由RACH子信道分配单元（211）获得的分配结果中是否生成了重叠。 当分配单元（210）判定在分配结果中产生重叠时，分配单元（210）使引起重叠的RACH子信道分配单元（211）中的一个再次执行步骤ST320的分配。 另一方面，当判断在分配结果中没有产生重叠时，执行步骤ST340。

公开(公告)号：US20070195786A1

公开(公告)日：2007-08-23

申请号：US10593309

申请日：2005-03-04

申请人： Jun Cheng ,  Akihiko Nishio

发明人： Jun Cheng ,  Akihiko Nishio

IPC分类号： H04L12/56

CPC分类号： H04L45/00 ,  H04L47/14 ,  H04L47/50 ,  H04L47/6265

摘要： There is provided a scheduling method for scheduling packet data capable of improving channel use efficiency while maintaining both of QoS and fairness of each mobile station (each flow). The scheduling method includes ST (step) 10 for setting a total transmission set value C (initial value), ST20 for calculating a traffic amount Sk of each mobile station (each flow) by using the GPS, ST30 for allocating a packet of each mobile station (each flow) to each sub channel, ST40 for calculating an actual transmission ratio C′, ST50 for judging whether the number of remaining sub channels to which no packet has been allocated in ST30 is equal to or below a threshold value, ST60 for calculating the transmission ratio Delta C of the remaining sub channels if the number of the remaining sub channels is greater than the threshold value, and ST70 for resetting C=C′+Delta C.

摘要翻译： 提供了一种用于调度能够提高信道使用效率同时保持每个移动台的QoS和公平性（每个流）的分组数据的调度方法。 调度方法包括用于设定总发送设定值C（初始值）的ST（步骤）10，用于通过使用GPS计算每个移动站（每个流）的业务量Sk）的ST 20，用于分配 每个移动站（每个流）到每个子信道，用于计算实际传输比率C'的ST40，用于判断在ST30中没有分组的剩余子信道的数量是否等于或低于 阈值ST60，用于计算剩余子通道的传输比率ΔC，如果剩余子通道的数量大于阈值，以及用于复位C = C'+ DeltaC的ST70。

公开(公告)号：US20060246916A1

公开(公告)日：2006-11-02

申请号：US10568673

申请日：2004-08-20

申请人： Jun Cheng ,  Akihiko Nishio

发明人： Jun Cheng ,  Akihiko Nishio

IPC分类号： H04Q7/20 ,  H04B7/00

CPC分类号： H04L5/0057 ,  H04B7/0621 ,  H04B7/0632 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0042 ,  H04L5/0053 ,  H04L5/006 ,  H04L5/0064 ,  H04L5/0094 ,  H04L27/2601 ,  H04W24/02 ,  H04W24/08 ,  H04W64/003 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/085

摘要： Wireless communication apparatus capable of improving communication efficiency by reducing the amount of control information transmitted is disclosed. With this apparatus, channel quality information extraction section (103) extracts CQI's from a received signal. Allocation control section 104 allocates subcarriers every communication terminal apparatus and selects a modulation scheme in such a manner that required transmission rate is satisfied for each communication terminal apparatus based on required transmission rate information etc. and CQI's for communication terminal apparatus of each user. Required subcarrier number determining section (105) decides the number of subcarriers allocated every communication terminal apparatus in such a manner as to satisfy the required transmission rate for each communication terminal apparatus based on required transmission rate information etc. of communication terminal apparatus of each user. Required subcarrier number information generating section (107) generates information for the number of subcarriers allocated every communication terminal apparatus. Subcarrier allocation section (110) allocates packet data to selected subcarriers. Modulating sections (111-1 to 111-N) adaptively modulate packet data allocated to each subcarrier.

摘要翻译： 公开了能够通过减少发送的控制信息的量来提高通信效率的无线通信装置。 利用该装置，信道质量信息提取部（103）从接收信号中提取CQI。 分配控制部分104在每个通信终端设备中分配副载波，并且以每个通信终端设备为基础的所需传输速率信息等和每个用户的通信终端设备的CQI，以满足所需传输速率的方式选择调制方案。 所需子载波数确定部（105）根据每个用户的通信终端装置的所需传输速率信息等，确定每个通信终端装置分配的副载波的数量，以满足每个通信终端装置所需的传输速率。 所需副载波数信息生成部（107）生成分配给每个通信终端装置的副载波数的信息。 子载波分配部分（110）将分组数据分配给所选择的子载波。 调制部分（111-1至111-N）自适应地调制分配给每个子载波的分组数据。