公开(公告)号：US20120155519A1

公开(公告)日：2012-06-21

申请号：US13406374

申请日：2012-02-27

申请人： Sadaki Futagi ,  Daichi Imamura ,  Atsushi Matsumoto ,  Takashi Iwai

发明人： Sadaki Futagi ,  Daichi Imamura ,  Atsushi Matsumoto ,  Takashi Iwai

IPC分类号： H04L27/00

CPC分类号： H04W52/262 ,  H04L1/0003 ,  H04L1/0004 ,  H04L1/0005 ,  H04L1/0009 ,  H04L1/001 ,  H04L1/0011 ,  H04L1/0016 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0046 ,  H04L5/0058 ,  H04L5/006 ,  H04L27/2614 ,  H04W52/267 ,  H04W72/042 ,  H04W72/08 ,  Y10S370/914

摘要： Provided is a communication device, which is enabled to improve the throughput of a communication system by reducing the difference of a transmission power between an SCCH and an SDCH thereby to satisfy the required quality of a PAPR. In this device, an MCS selection unit (111) of a transmission unit (110) decides, with reference to a CQI lookup table, an MCS pattern (MCS1) of the SDCH, an MCS pattern (MCS2) of the SCCH and information (multiplex information) on multiplex positions on the time axes of those two channels, on the basis of the CQI information. On the basis of the MCS2 and the MCS1, encoding modulation units (112 and 113) perform encoding and modulating operations. According to the multiplex information, a channel multiplexing unit (114) time-division multiplexes the SCCH and the SDCH thereby to generate a transmission signal.

摘要翻译： 提供了一种通信装置，其能够通过减少SCCH和SDCH之间的发送功率的差异来提高通信系统的吞吐量，从而满足PAPR的所需质量。 在该装置中，发送部（110）的MCS选择部（111）参照CQI查找表，决定SDCH的MCS模式（MCS1），SCCH的MCS模式（MCS2）和信息（ 多路复用信息），根据CQI信息，对这两个信道的时间轴上的多路复用位置进行复用。 基于MCS2和MCS1，编码调制单元（112和113）进行编码和调制操作。 根据多路复用信息，信道复用单元（114）对SCCH和SDCH进行时分复用，从而生成发送信号。

公开(公告)号：US08130707B2

公开(公告)日：2012-03-06

申请号：US12162720

申请日：2007-01-30

申请人： Takashi Iwai ,  Daichi Imamura ,  Sadaki Futagi ,  Atsushi Matsumoto

发明人： Takashi Iwai ,  Daichi Imamura ,  Sadaki Futagi ,  Atsushi Matsumoto

IPC分类号： H04W4/00

CPC分类号： H04L5/00 ,  H04L1/00 ,  H04L5/0048 ,  H04L5/0071 ,  H04W72/0446 ,  H04W74/085

摘要： Disclosed are a radio communication system, a radio transmission device, and a Random Access Channel (RACH) transmission method capable of reducing the important information conflict probability and improving the communication system throughput in a channel transmitted at a random timing such as RACH. In a frame configuration used by the communication system, the number of slots of RACH is reduced by one and the resource for the slot is equally allocated as a resource for a pilot/User Equipment-Identification (UE-ID) of other slots. This increases the resource amount of the pilot/UE-ID. Furthermore, the resource of the pilot/UE-ID is divided into a plurality of sub slots, which are allocated as resource blocks for respective mobile stations.

摘要翻译： 本发明公开了一种无线电通信系统，无线电发送装置和随机接入信道（RACH）发送方法，其能够降低重要的信息冲突概率并提高在诸如RACH的随机定时发送的信道中的通信系统吞吐量。 在由通信系统使用的帧配置中，将RACH的时隙数量减少1，并且将时隙的资源作为用于其他时隙的导频/用户设备标识（UE-ID）的资源被均等地分配。 这增加了导频/ UE-ID的资源量。 此外，导频/ UE-ID的资源被划分为被分配为各个移动台的资源块的多个子时隙。

公开(公告)号：US20100290543A1

公开(公告)日：2010-11-18

申请号：US12066785

申请日：2006-09-15

申请人： Takashi Iwai ,  Daichi Imamura ,  Sadaki Futagi ,  Atsushi Matsumoto

发明人： Takashi Iwai ,  Daichi Imamura ,  Sadaki Futagi ,  Atsushi Matsumoto

IPC分类号： H04L27/00

CPC分类号： H04L25/03159 ,  H04L1/007 ,  H04L1/0086 ,  H04L1/08

摘要： A radio transmitting apparatus wherein when both a first data and a second data, which has a greater importance than the first data, are placed in a single block, the BER characteristic of the second data can be well maintained. In this apparatus, a modulating part (101-1) modulates a first data sequence to generate a first data symbol, while a modulating part (101-2) modulates a second data sequence to generate a second data symbol. A placing part (102) places both the first data symbol and the second data sequence in each of blocks constituting a single carrier signal. At this moment, the placing part (102) places, in the single block, the first data at both ends of the block, while placing the second data, which has the greater importance than the first data, at the center of the block. A CP adding part (103) adds, to the head of the block in which the first and second data symbols are placed, a rear end portion of that block as CP.

摘要翻译： 一种无线电发送装置，其中当具有比第一数据更重要的第一数据和第二数据都被放置在单个块中时，可以良好地维护第二数据的BER特性。 在该装置中，调制部分（101-1）调制第一数据序列以产生第一数据符号，而调制部分（101-2）调制第二数据序列以产生第二数据符号。 放置部分（102）将第一数据符号和第二数据序列放置在构成单个载波信号的每个块中。 此时，放置部件（102）在块的两端将第一数据放在块的两端，同时将具有比第一数据更重要的第二数据放置在块的中心。 CP添加部分（103）将放置第一和第二数据符号的块的头部作为CP添加到该块的后端部分。

公开(公告)号：US20100272028A1

公开(公告)日：2010-10-28

申请号：US12160401

申请日：2007-01-17

申请人： Atsushi Matsumoto ,  Daichi Imamura ,  Sadaki Futagi ,  Takashi Iwai

发明人： Atsushi Matsumoto ,  Daichi Imamura ,  Sadaki Futagi ,  Takashi Iwai

IPC分类号： H04W72/12

CPC分类号： H04W74/02 ,  H04J11/003 ,  H04L1/0004 ,  H04L1/0005 ,  H04L1/001 ,  H04L1/0011 ,  H04L1/0017 ,  H04L2001/0098

摘要： A wireless transmitter and a wireless transmitting method in a communication system are provided with features in which a contention based channel and a scheduled channel are time-division-multiplexed, influence of interference between the channels is reduced while receiving quality is improved even if a delay in the contention based channel takes place. In the device and method, a heading portion MCS of the scheduled channel following the contention based channel is set to be more tolerant of errors (for example, QPSK, R=⅓) than the other portion MCS (for example, 16 QAM, R=⅓) and transmission is carried out.

摘要翻译： 在通信系统中的无线发射机和无线发射方法具有其中基于竞争的信道和调度的信道被时分多路复用的特征，即使延迟的接收质量也提高了信道之间的干扰的影响， 在基于争用的渠道中发生。 在设备和方法中，在基于竞争的信道之后的调度信道的标题部分MCS被设置为比其他部分MCS更为宽容（例如，QPSK，R = 1/3）（例如，16QAM，R = 1/3），并进行传输。

公开(公告)号：US20100002671A1

公开(公告)日：2010-01-07

申请号：US12376002

申请日：2007-08-02

申请人： Takashi Iwai ,  Sadaki Futagi ,  Daichi Imamura ,  Atsushi Matsumoto ,  Yoshihiko Ogawa

发明人： Takashi Iwai ,  Sadaki Futagi ,  Daichi Imamura ,  Atsushi Matsumoto ,  Yoshihiko Ogawa

IPC分类号： H04B7/216

CPC分类号： H04W56/005 ,  H04J13/0074 ,  H04J13/10 ,  H04W8/26 ,  H04W74/0866

摘要： A radio transmitting apparatus and a radio transmitting method wherein the interference between codes can be reduced and the degradation of preamble detection capability can be prevented. According to these apparatus and method, a signature table storing part (103) that stores a table including a plurality of signatures obtained by classifying the magnitudes of propagation loss levels into levels in accordance with the distances from a base station, associating preamble detection window widths with those levels as classified, and by circularly shifting the pattern of a detection window signature #n corresponding to a signature #n to generate a signature #n+1. A signature selecting part (104) selects, based on the magnitude of a propagation loss level outputted by a propagation loss level determining part (102), one of the corresponding signatures from the signature table storing part (103) at random. A RACH signal generating part (105) uses the selected signature to generate a RACH signal.

摘要翻译： 一种无线电发送装置和无线电发送方法，其中可以减少代码之间的干扰，并且可以防止前导码检测能力的劣化。 根据这些装置和方法，一种签名表存储部分（103），其存储包括根据与基站的距离将传播损耗级别的大小分级为等级而获得的多个签名的表，将前同步码检测窗宽度 通过循环移位与签名#n对应的检测窗签名#n的图案，生成签名＃n + 1。 签名选择部（104）基于由传播损耗等级确定部（102）输出的传播损耗等级的大小，从签名表存储部（103）中随机选择一个对应的签名。 RACH信号生成部（105）使用所选择的签名来生成RACH信号。

公开(公告)号：US20090161789A1

公开(公告)日：2009-06-25

申请号：US12095460

申请日：2006-11-30

申请人： Daichi Imamura ,  Takashi Iwai ,  Atsushi Matsumoto ,  Sadaki Futagi ,  Tomotumi Takata

发明人： Daichi Imamura ,  Takashi Iwai ,  Atsushi Matsumoto ,  Sadaki Futagi ,  Tomotumi Takata

IPC分类号： H04L27/00

CPC分类号： H04L27/2607 ,  H04L1/0042 ,  H04L1/007 ,  H04L1/0086 ,  H04L2001/0098

摘要： Disclosed are a radio sending device and a radio sending method for improving a throughput while keeping a receiving quality. In this radio sending device, an MCS switching control unit (102) applies an MCS parameter having a lower quality required than that of the MCS parameter to be applied to send data arranged at other than the two end portions of a block, to send data arranged at the two end portions of the block, and a CP adding unit (105) adds such a CP to the leading end of the block as is created by copying the trailing end portion of the block composed of the send data, to which the MCS parameter is applied by the MCS switching control unit (102), with a length less than the delay time of the maximum delay wave. A send RF unit (106) sends the send data, in which the CP is added to the leading end of the block, from an antenna (107).

摘要翻译： 公开了一种在保持接收质量的同时提高吞吐量的无线发送装置和无线发送方法。 在该无线发送装置中，MCS切换控制部（102）将具有比要施加的MCS参数要低的质量的MCS参数应用于发送排列在块的两端部以外的数据，发送数据 配置在块的两端部，并且CP添加单元（105）将这样的CP添加到通过复制由发送数据组成的块的后端部分所产生的块的前端， MCS参数由MCS切换控制单元（102）施加，长度小于最大延迟波的延迟时间。 发送RF单元（106）从天线（107）发送将CP添加到块的前端的发送数据。

公开(公告)号：US08472558B2

公开(公告)日：2013-06-25

申请号：US12524689

申请日：2008-01-30

申请人： Yoshihiko Ogawa ,  Daichi Imamura ,  Sadaki Futagi ,  Atsushi Matsumoto ,  Takashi Iwai

发明人： Yoshihiko Ogawa ,  Daichi Imamura ,  Sadaki Futagi ,  Atsushi Matsumoto ,  Takashi Iwai

IPC分类号： H03C1/52 ,  H04L27/04

CPC分类号： H04L25/0226 ,  H04J13/0059 ,  H04J13/22

摘要： It is possible to provide a radio transmission device and a radio transmission method which can avoid degradation of a channel estimation accuracy using a reference signal formed by a ZC sequence even when the RS transmission band of a local cell is different from that of an adjacent cell. A mobile station decides a cyclic shift sequence corresponding to RB allocation information from an RS table which correlates different frequency bandwidths from a reference point of respective transmission bands to a spectrum start number of the cyclic shift sequence so as to satisfy a particular relationship based on the sequence length and transmits the decided cyclic shift sequence as RS to a base station. The base station uses the same RS table as the RS table of the mobile station and performs correlation calculation of the RS transmitted from the mobile station, thereby performing channel estimation.

摘要翻译： 可以提供一种无线传输装置和无线传输方法，即使当本地小区的RS传输频带与相邻小区的RS传输频带不同时，也可以使用由ZC序列形成的参考信号来降低信道估计精度的劣化 。 移动台从RS表中确定与RB分配信息相对应的循环移位序列，该RS表把不同的频带宽度从各个传输频带的参考点相关到循环移位序列的频谱起始号，从而满足基于 序列长度，并将所确定的循环移位序列作为RS发送到基站。 基站使用与移动站的RS表相同的RS表，对从移动台发送的RS进行相关运算，进行信道估计。

公开(公告)号：US08363608B2

公开(公告)日：2013-01-29

申请号：US12442497

申请日：2007-09-28

申请人： Daichi Imamura ,  Takashi Iwai ,  Kazunori Inogai ,  Sadaki Futagi ,  Atsushi Matsumoto

发明人： Daichi Imamura ,  Takashi Iwai ,  Kazunori Inogai ,  Sadaki Futagi ,  Atsushi Matsumoto

IPC分类号： H04W4/00

CPC分类号： H04W74/0833 ,  H04B1/707 ,  H04B1/7083 ,  H04B2201/70702 ,  H04B2201/70713 ,  H04J13/0062 ,  H04J13/102 ,  H04J13/22 ,  H04L5/0048 ,  H04L23/02 ,  H04L27/2613 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/0875

摘要： A sequence allocating method and a sequence allocating apparatus wherein in a system where a plurality of different Zadoff-Chu sequences or GCL sequences are allocated to a single cell, the arithmetic amount and circuit scale of a correlating circuit at a receiving end can be reduced. According to these method and apparatus, in ST201, a counter (a) and a number (p) of current sequence allocations are initialized, and in ST202, it is determined whether the number (p) of current sequence allocations is coincident with a number (K) of allocations to one cell. In ST203, it is determined whether the number (K) of allocations to the one cell is odd or even. If K is even, in ST204-ST206, sequence numbers (r=a and r=N−a), which are not currently allocated, are combined and then allocated. If K is odd, in ST207-ST212, for sequences that cannot be paired, one of sequence numbers (r=a and r=N−a), which are not currently allocated, is allocated.

摘要翻译： 一种序列分配方法和序列分配装置，其中在将多个不同的Zadoff-Chu序列或GCL序列分配给单个小区的系统中，可以减少接收端的相关电路的算术量和电路规模。 根据这些方法和装置，在ST201中，初始化当前序列分配的计数器（a）和数量（p），在ST202中，确定当前序列分配的数量（p）是否与数字 （K）到一个单元的分配。 在ST203中，确定对一个单元的分配的数量（K）是奇数还是偶数。 如果K是偶数，则在ST204-ST206中，组合然后分配未被分配的序列号（r = a和r = N-a）。 如果K是奇数，则在ST207-ST212中，对于不能配对的序列，分配未分配的序列号（r = a和r = N-a）中的一个。

公开(公告)号：US20130010726A1

公开(公告)日：2013-01-10

申请号：US13614334

申请日：2012-09-13

申请人： Daichi Imamura ,  Takashi Iwai ,  Kazunori Inogai ,  Sadaki Futagi ,  Atsushi Matsumoto

发明人： Daichi Imamura ,  Takashi Iwai ,  Kazunori Inogai ,  Sadaki Futagi ,  Atsushi Matsumoto

IPC分类号： H04W72/02

CPC分类号： H04W74/0833 ,  H04B1/707 ,  H04B1/7083 ,  H04B2201/70702 ,  H04B2201/70713 ,  H04J13/0062 ,  H04J13/102 ,  H04J13/22 ,  H04L5/0048 ,  H04L23/02 ,  H04L27/2613 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/0875

摘要： A sequence allocating method and apparatus wherein in a system where a plurality of different Zadoff-Chu sequences or GCL sequences are allocated to a single cell, the arithmetic amount and circuit scale of a correlating circuit at a receiving end can be reduced. In ST201, a counter (a) and a number (p) of current sequence allocations are initialized, and in ST202, it is determined whether the number (p) of current sequence allocations is coincident with a number (K) of allocations to one cell. In ST203, it is determined whether the number (K) of allocations to the one cell is odd or even. If K is even, in ST204-ST206, sequence numbers (r=a and r=N−a), which are not currently allocated, are combined and then allocated. If K is odd, in ST207-ST212, for sequences that cannot be paired, one of sequence numbers (r=a and r=N−a), which are not currently allocated, is allocated.

公开(公告)号：US20130003686A1

公开(公告)日：2013-01-03

申请号：US13614417

申请日：2012-09-13

申请人： Daichi Imamura ,  Takashi Iwai ,  Kazunori Inogai ,  Sadaki Futagi ,  Atsushi Matsumoto

发明人： Daichi Imamura ,  Takashi Iwai ,  Kazunori Inogai ,  Sadaki Futagi ,  Atsushi Matsumoto

IPC分类号： H04W72/00 ,  H04W74/08

CPC分类号： H04W74/0833 ,  H04B1/707 ,  H04B1/7083 ,  H04B2201/70702 ,  H04B2201/70713 ,  H04J13/0062 ,  H04J13/102 ,  H04J13/22 ,  H04L5/0048 ,  H04L23/02 ,  H04L27/2613 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/0875

摘要： A sequence allocating method and apparatus wherein in a system where a plurality of different Zadoff-Chu sequences or GCL sequences are allocated to a single cell, the arithmetic amount and circuit scale of a correlating circuit at a receiving end can be reduced. In ST201, a counter (a) and a number (p) of current sequence allocations are initialized, and in ST202, it is determined whether the number (p) of current sequence allocations is coincident with a number (K) of allocations to one cell. In ST203, it is determined whether the number (K) of allocations to the one cell is odd or even. If K is even, in ST204-ST206, sequence numbers (r=a and r=N−a), which are not currently allocated, are combined and then allocated. If K is odd, in ST207-ST212, for sequences that cannot be paired, one of sequence numbers (r=a and r=N−a), which are not currently allocated, is allocated.