JPH066399A - Data transmitting method - Google Patents
- ️Fri Jan 14 1994
JPH066399A - Data transmitting method - Google Patents
Data transmitting methodInfo
-
Publication number
- JPH066399A JPH066399A JP4159213A JP15921392A JPH066399A JP H066399 A JPH066399 A JP H066399A JP 4159213 A JP4159213 A JP 4159213A JP 15921392 A JP15921392 A JP 15921392A JP H066399 A JPH066399 A JP H066399A Authority
- JP
- Japan Prior art keywords
- data
- data group
- transmission
- demodulation
- bit Prior art date
- 1992-06-18 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
PURPOSE:To decrease an error of an important bit which is high in bit sensitiv ity by converting the arrangement of sent data in consideration of bit sensitivity corresponding to the likelihood at the time of demodulation. CONSTITUTION:When a data group D1 (d4, d3, d2, and d1) outputted from a transmission-side digital mobile communication device 30 by a sent data controller 31 is inputted to an interleaving device 32, the device 32 converts the data arrangement. At this time, the device 32 generates a data group D2 (d1, d2, d4, and d3) whose data arrangement is converted in consideration of bit sensitivity for the data group D1. A hexadecimal orthogonal amplitude modulating device 33 performs hexadecimal orthogonal amplitude modulation from the data group D2 with symbols having I and Q phases and amplitude information as a carrier and the symbols S are sent from an antenna 34. Then when the data group D1 is sent, data with high bit sensitivity is arranged at a data position where the likelihood at the time of demodulation is high. Then a reception- side digital communication device 33 can prevents an error of high-sensitivity data from being generated at the time of the demodulation of the symbols S.
Description
【0001】[0001]
【産業上の利用分野】本発明はデータ伝送方法に係わ
り、特に、音声データ等ビット感度に違いのある送信デ
ータを16値直交振幅変調して伝送するに好適なデータ
伝送方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data transmission method, and more particularly to a data transmission method suitable for transmitting 16-value quadrature amplitude modulation of transmission data such as voice data having different bit sensitivities.
【0002】[0002]
【従来の技術】従来、ディジタル移動通信装置間でデー
タの授受を行うに際しては、まず、送信側の送信データ
制御装置において、図4に示されるように、データ群D
1を指定のデータ位置に配置してデータ群D1(d4,
d3,d2,d1)として、インタリブ装置へ出力し、イン
タリブ装置において、データ配置をランダム化してデー
タ群D2(d2,d3,d1,d4)として出力し、このデ
ータ群D2を16値直交振幅変調装置において、データ
群D2(d2,d3,d1,d4)からI,Qの位相及び振
幅情報を有するシンボルSに変調し、シンボルSを搬送
波出力としてアンテナから出力する構成が採用されてい
る。シンボルSは受信側ディジタル移動通信装置のアン
テナによって受信され、受信側の16値直交振幅復調装
置に入力される。この16値直交振幅復調装置において
は受信したシンボルSの位相及び振幅情報であるI,Q
の値により、受信データを再生するようになっている。2. Description of the Related Art Conventionally, in transmitting and receiving data between digital mobile communication devices, first, in a transmission data control device on the transmission side, as shown in FIG.
1 is arranged at a designated data position and the data group D1 (d 4 ,
d 3, as d 2, d 1), and outputs to the Intaribu device, in Intaribu device outputs the data arrangement as randomized in the data group D2 (d 2, d 3, d 1, d 4), the data group in D2 a 16 quadrature amplitude modulation system, modulates the data group D2 (d 2, d 3, d 1, d 4) I, the symbol S having a phase and amplitude information of the Q, the antenna symbol S as a carrier wave output The configuration to output from is adopted. The symbol S is received by the antenna of the digital mobile communication device on the receiving side and input to the 16-ary quadrature amplitude demodulating device on the receiving side. In this 16-value quadrature amplitude demodulation device, I and Q which are phase and amplitude information of the received symbol S
The received data is reproduced depending on the value of.
【0003】今、送信データ制御装置より出力されたデ
ータ群D1を(0110)としたとき、インタリブ装置
の出力D2は(1100)となり、16値直交振幅変調
装置の出力Sの位相及び振幅情報I,Qは、図3に示さ
れるように、I=3,Q=−1となる。そしてこの情報
を受信した受信側の16値直交振幅復調装置では、受信
シンボルSの位相及び振幅情報I=3,Q=−1からデ
ータ群D2(1100)を出力する。すなわち、シンボ
ルSにより再生されるデータ群(φ4,φ3,φ 2,φ1)
各データ位置に対し、データ位置φ4に関しては、Q≧
0のときはφ4=0とし、 Q≦0のときはφ4=1と
する。データ位置φ3に関しては、|Q|≧2のときは
φ3=0とし、|Q|≦2のときはφ3=0とする。デー
タ位置φ2に関しては、I≧0のときはφ2=0とし、I
≦0のときはφ2=1とする。データ位置φ1に関して
は、|I|≧2のときはφ1=0とし、|I|<2のと
きはφ1=1としてデータを再生する。Now, the data output from the transmission data control device is output.
When the data group D1 is (0110), the interleave device
Output D2 is (1100), and 16-value quadrature amplitude modulation
The phase and amplitude information I, Q of the device output S is shown in FIG.
As described above, I = 3 and Q = -1. And this information
The 16-sided quadrature amplitude demodulation device on the receiving side that received
From the phase and amplitude information I = 3, Q = -1 of the symbol S,
The data group D2 (1100) is output. That is, the symbol
Data group (φFour, Φ3, Φ 2, Φ1)
Data position φ for each data positionFourQ ≧
Φ when 0Four= 0, and φ when Q ≦ 0Four= 1
To do. Data position φ3Regarding, when | Q | ≧ 2
φ3= 0, and when | Q | ≦ 2, φ3= 0. Day
Position φ2Regarding, φ when I ≧ 02= 0, I
Φ when ≦ 02= 1. Data position φ1Regarding
Is φ when | I | ≧ 21= 0 and | I | <2
Is φ1The data is reproduced with = 1.
【0004】このようにして再生されたデータ群D2
(d2,d3,d1,d4)は受信側でインタリブ装置によ
り元のデータ群D1(d4,d3,d2,d1)に変換さ
れ、このデータが受信データ制御装置へ出力され、デー
タの伝送が終了することになる。The data group D2 reproduced in this way
(D 2, d 3, d 1, d 4) is converted to the received original data set by Intaribu device side D1 (d 4, d 3, d 2, d 1), to the data reception data control unit The data is output and the data transmission is completed.
【0005】[0005]
【発明が解決しようとする課題】しかしながら、上記従
来のデータ伝送方法では、送信データのデータ配置をラ
ンダム化するに際して、16値直交振幅変調の特性によ
り1シンボル中のデータ位置φ3及びφ1に関して、デー
タの値が1である尤度値の上限が定まるより誤りやすい
データ位置であり、送信データのビット感度に関係なく
ランダム化して16値直交振幅変調を行う場合には、ビ
ット感度の高い重要な情報が誤るおそがある。However, in the above-described conventional data transmission method, when randomizing the data arrangement of the transmission data, the data positions φ 3 and φ 1 in one symbol due to the characteristics of 16-value quadrature amplitude modulation. , The data value is 1, it is a data position that is more likely to be erroneous than the upper limit of the likelihood value is determined, and high bit sensitivity is important when performing 16-value quadrature amplitude modulation by randomizing regardless of the bit sensitivity of transmission data. Some information is wrong.
【0006】本発明は上記従来の課題を解決するもので
あり、ビット感度の高い重要なビットの誤りを低減する
ことができるデータ伝送方法を提供することを目的とす
る。The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a data transmission method capable of reducing errors in important bits having high bit sensitivity.
【0007】[0007]
【課題を解決するための手段】本発明は、前記目的を達
成するために、指定のデータ位置に配置された送信デー
タ群を伝送するに際して、各送信データのデータ配置を
復調時の尤度に応じたビット感度を考慮して変換し、デ
ータ配置の変換された送信データ群を多値直交振幅変調
して伝送するデータ伝送方法を採用したものである。In order to achieve the above object, the present invention, when transmitting a transmission data group arranged at a designated data position, sets the data arrangement of each transmission data to the likelihood at the time of demodulation. A data transmission method is adopted in which conversion is performed in consideration of the corresponding bit sensitivity, and the transmission data group in which the data arrangement is converted is subjected to multilevel quadrature amplitude modulation and transmitted.
【0008】[0008]
【作用】本発明は上記構成により、各送信データのデー
タ配置を復調時の尤度においたビット感度を考慮して変
換するようにしたため、復調時の尤度の高いデータ位置
にビット感度の高いデータが配置され、ビット感度の高
いデータの誤りを低減することができる。According to the present invention, since the data arrangement of each transmission data is converted in consideration of the bit sensitivity in the likelihood at the time of demodulation, the present invention has a high bit sensitivity at a data position having a high likelihood at the time of demodulation. Data is arranged, and it is possible to reduce errors in data having high bit sensitivity.
【0009】[0009]
【実施例】以下、本発明の一実施例を図面に基づいて説
明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
【0010】図2において、ディジタル移動通信システ
ムとして、送信用ディジタル移動通信装置30と受信用
ディジタル移動通信装置35が設けられている。送信用
ディジタル移動通信装置30は送信データ制御装置3
1、インタリブ装置32、16値直交振幅変調装置3
3、送信アンテナ34を備えて構成されている。一方、
受信用ディジタル移動通信装置35は受信アンテナ3
6、16値直交振幅復調装置37、デインタリブ装置3
8、受信データ制御装置39を備えて構成されている。In FIG. 2, a transmission digital mobile communication device 30 and a reception digital mobile communication device 35 are provided as a digital mobile communication system. The transmitting digital mobile communication device 30 is a transmission data control device 3.
1, interleaver 32, 16-valued quadrature amplitude modulator 3
3 and the transmitting antenna 34 are provided. on the other hand,
The receiving digital mobile communication device 35 includes the receiving antenna 3
6, 16-ary quadrature amplitude demodulator 37, deinterleaver 3
8 and a reception data control device 39.
【0011】送信データ制御装置31は、図1に示され
るように、送信データ群D1(d4,d3,d2,d1)を
指定の位置に配置してインタリブ装置32へ出力するよ
うになっている。インタリブ装置32はデータ群D1を
復調時の尤度の高いデータ位置にビット感度の高いデー
タを配置してデータ群D2(d1,d2,d4,d3)とし
て出力するようになっている。16値直交振幅変調装置
33はデータ群D2(d1,d2,d4,d3)からI,Q
の位相及び振幅情報を有するシンボルSを搬送波出力と
して送信アンテナ34に出力するようになっている。As shown in FIG. 1, the transmission data control device 31 arranges the transmission data group D1 (d 4 , d 3 , d 2 , d 1 ) at a designated position and outputs it to the interleave device 32. It has become. The interleaver 32 arranges the data group D1 at a data position having a high likelihood at the time of demodulation, and outputs the data group D2 (d 1 , d 2 , d 4 , d 3 ) as data group D2. There is. The 16-value quadrature amplitude modulator 33 uses the data group D2 (d 1 , d 2 , d 4 , d 3 ) to I, Q.
The symbol S having the phase and amplitude information of 1 is output to the transmitting antenna 34 as a carrier wave output.
【0012】一方、16値直交振幅復調装置37は受信
アンテナ36で受信されたシンボルSの位相及び振幅情
報であるI,Qの値により、データ群D2(d1,d2,
d4,d3)を再生するようになっている。この場合、図
3に示されるように、シンボルSにより再生されるデー
タ群(φ4,φ3,φ2,φ1)の各データ位置に対し、デ
ータ位置φ4に関しては、Q≧0のときはφ4=0とし、
Q≦0のときはφ4=1とする。データ位置φ3に関
しては、|Q|≧2のときはφ3=0とし、|Q|≦2
のときはφ3=0とする。データ位置φ2に関しては、I
≧0のときはφ2=0とし、I≦0のときはφ2=1とす
る。データ位置φ1に関しては、|I|≧2のときはφ
1=0とし、|I|<2のときはφ1=1としてデータを
再生する。デインタリブ装置38により図1に示すよう
なデータ位置に変換されたデータ群D1(d4,d3,d
2,d1)が受信データ制御装置39へ出力され、データ
伝送が終了することになる。On the other hand, the 16-value quadrature amplitude demodulation device 37 uses the values of I and Q which are the phase and amplitude information of the symbol S received by the receiving antenna 36, and the data group D2 (d 1 , d 2 ,
d 4, d 3) is adapted to play. In this case, as shown in FIG. 3, for each data position of the data group (φ 4 , φ 3 , φ 2 , φ 1 ) reproduced by the symbol S, Q ≧ 0 for the data position φ 4 . Then φ 4 = 0,
When Q ≦ 0, φ 4 = 1. Regarding the data position φ 3 , when | Q | ≧ 2, φ 3 = 0, and | Q | ≦ 2
Then φ 3 = 0. For the data position φ 2 , I
When ≧ 0, φ 2 = 0, and when I ≦ 0, φ 2 = 1. For data position φ 1 , φ when | I | ≧ 2
When 1 = 0, when | I | <2, φ 1 = 1 is set and data is reproduced. The data group D1 (d 4 , d 3 , d) converted into the data position as shown in FIG. 1 by the deinterleave device 38.
2 , d 1 ) is output to the reception data control device 39, and the data transmission is completed.
【0013】上記構成において、送信側ディジタル移動
通信装置30から送信データ制御装置31より出力され
たデータ群D1(d4,d3,d2,d1)がインタリブ装
置32に入力されたときには、インタリブ装置32は、
データ群D1のビット感度(d1≧d4≧d2≧d3)を考
慮してデータ配置を変換したデータ群D2(d1,d2,
d4,d3)を生成し、このデータ群D2(d1,d2,d
4,d3)からI,Qの位相及び振幅情報を有するシンボ
ルを搬送波とする16値直交振幅変調を16値直交振幅
変調装置33において行い、そのシンボルSをアンテナ
34から送信することになる。すなわちデータ群D1
(d4,d3,d2,d1)を伝送するときには、復調時の
尤度の高いデータ位置にビット感度の高いデータを配置
する変換を行って伝送するようにしているため、受信側
ディジタル通信装置35でシンボルSを復調した際にビ
ット感度の高いデータに誤りが生じるのを防止すること
ができる。In the above configuration, when the data group D1 (d 4 , d 3 , d 2 , d 1 ) output from the transmission data control device 31 from the transmission side digital mobile communication device 30 is input to the interleave device 32, The interleave device 32 is
Bit sensitivity data group D1 (d 1 ≧ d 4 ≧ d 2 ≧ d 3) in consideration of converting the data arrangement data group D2 (d 1, d 2,
d 4, d 3) generates, the data group D2 (d 1, d 2, d
4 and d 3 ) to 16-ary quadrature amplitude modulation using a symbol having I and Q phase and amplitude information as a carrier in the 16-ary quadrature amplitude modulator 33, and the symbol S is transmitted from the antenna 34. That is, the data group D1
When (d 4 , d 3 , d 2 , d 1 ) is transmitted, since conversion is performed so that data having high bit sensitivity is arranged at a data position having high likelihood at the time of demodulation, transmission is performed. It is possible to prevent an error from occurring in data having high bit sensitivity when the symbol S is demodulated by the digital communication device 35.
【0014】[0014]
【発明の効果】本発明によれば、上記実施例から明らか
なように、各送信データのデータ配置を復調時の尤度に
応じたビット感度を考慮して変換するようにしたため、
ビット感度の高い重要なデータに誤りが生じるのを防止
することができる。According to the present invention, as apparent from the above embodiment, the data arrangement of each transmission data is converted in consideration of the bit sensitivity according to the likelihood at the time of demodulation.
It is possible to prevent an error from occurring in important data having high bit sensitivity.
【図1】本発明のデータ伝送方法を説明するためのデー
タ配置変換の概念図FIG. 1 is a conceptual diagram of data arrangement conversion for explaining a data transmission method of the present invention.
【図2】本発明が適用されたディジタル移動通信システ
ムの構成図FIG. 2 is a block diagram of a digital mobile communication system to which the present invention is applied.
【図3】16値直交振幅変調の空間信号ダイヤグラムFIG. 3 is a spatial signal diagram of 16-ary quadrature amplitude modulation.
【図4】従来例のデータ配置変換の概念図FIG. 4 is a conceptual diagram of data layout conversion of a conventional example.
【符号の説明】[Explanation of symbols]30 送信用ディジタル移動通信装置 31 通信データ専用装置 32 インタリブ装置 33 16値直交振幅変調装置 34 送信アンテナ 35 受信用ディジタル移動通信装置 36 受信アンテナ 37 16値直交振幅復調装置 38 デインタリブ装置 39 受信データ制御装置 30 Digital Mobile Communication Device for Transmission 31 Communication Data Dedicated Device 32 Interleave Device 33 16-ary Quadrature Amplitude Modulation Device 34 Transmitting Antenna 35 Digital Mobile Communication Device for Reception 36 Receiving Antenna 37 16-ary Quadrature Amplitude Demodulating Device 38 Deinterleave Device 39 Reception Data Control Device
Claims (1)
【特許請求の範囲】[Claims]
【請求項1】 指定のデータ位置に配置された送信デー
タ群を伝送するに際して、各送信データのデータ配置を
復調時の尤度に応じたビット感度を考慮して変換し、デ
ータ配置の変換された送信データ群を多値直交振幅変調
して伝送するデータ伝送方法。1. When transmitting a transmission data group arranged at a designated data position, the data arrangement of each transmission data is converted in consideration of bit sensitivity according to the likelihood at the time of demodulation, and the data arrangement is converted. Data transmission method for transmitting multi-valued quadrature amplitude modulation of a transmission data group.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4159213A JPH066399A (en) | 1992-06-18 | 1992-06-18 | Data transmitting method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4159213A JPH066399A (en) | 1992-06-18 | 1992-06-18 | Data transmitting method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH066399A true JPH066399A (en) | 1994-01-14 |
Family
ID=15688803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4159213A Pending JPH066399A (en) | 1992-06-18 | 1992-06-18 | Data transmitting method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH066399A (en) |
Cited By (14)
* Cited by examiner, † Cited by third partyPublication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002025887A1 (en) * | 2000-09-21 | 2002-03-28 | Matsushita Electric Industrial Co., Ltd. | Wireless transmission device and transmission signal mapping method |
WO2002052808A1 (en) * | 2000-12-27 | 2002-07-04 | Matsushita Electric Industrial Co., Ltd. | Radio transmitter, radio receiver, and multilevel modulation communication system |
WO2002069593A1 (en) * | 2001-02-27 | 2002-09-06 | Matsushita Electric Industrial Co., Ltd. | Digital radio communication system |
GB2378869A (en) * | 2001-06-09 | 2003-02-19 | Samsung Electronics Co Ltd | Rearranging codeword sequences for prioritising the mapping of bits |
KR100388400B1 (en) * | 1998-11-06 | 2003-06-25 | 마츠시타 덴끼 산교 가부시키가이샤 | Transmitting/receiving device and transmitting/receiving method |
US6769085B2 (en) | 2001-11-16 | 2004-07-27 | Matsushita Electric Industrial Co., Ltd. | Method for modifying a bit sequence in an ARQ restransmission, receiver and transmitter therefor |
US6798846B2 (en) | 2001-11-16 | 2004-09-28 | Matsushita Electric Industrial Co., Ltd. | ARQ retransmission with reordering scheme employing multiple redudancy versions and receiver/transmitter therefor |
KR100462555B1 (en) * | 2002-07-22 | 2004-12-17 | 한국전자통신연구원 | Apparatus and method of interleaving/deinterleaving in communication systems using channel reciprocity |
US6892341B2 (en) | 2001-02-21 | 2005-05-10 | Matsushita Electric Industrial Co., Ltd. | Data transmission apparatus using a constellation rearrangement |
KR100539862B1 (en) * | 2001-04-04 | 2005-12-28 | 삼성전자주식회사 | Method and apparatus for transporting and receiving data in cdma mobile system |
JP2008211489A (en) * | 2007-02-26 | 2008-09-11 | Mitsubishi Electric Corp | Mapping method, decoding method, and communicating system |
US7573852B2 (en) | 2001-10-15 | 2009-08-11 | Samsung Electronics Co., Ltd | Transmitting/receiving apparatus and method for packet retransmission in a mobile communication system |
US7693179B2 (en) | 2002-11-29 | 2010-04-06 | Panasonic Corporation | Data transmission apparatus using a constellation rearrangement |
JP4808722B2 (en) * | 2005-09-06 | 2011-11-02 | Kddi株式会社 | Data transmission system and data transmission method |
-
1992
- 1992-06-18 JP JP4159213A patent/JPH066399A/en active Pending
Cited By (31)
* Cited by examiner, † Cited by third partyPublication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100388400B1 (en) * | 1998-11-06 | 2003-06-25 | 마츠시타 덴끼 산교 가부시키가이샤 | Transmitting/receiving device and transmitting/receiving method |
WO2002025887A1 (en) * | 2000-09-21 | 2002-03-28 | Matsushita Electric Industrial Co., Ltd. | Wireless transmission device and transmission signal mapping method |
WO2002052808A1 (en) * | 2000-12-27 | 2002-07-04 | Matsushita Electric Industrial Co., Ltd. | Radio transmitter, radio receiver, and multilevel modulation communication system |
US7400689B2 (en) | 2000-12-27 | 2008-07-15 | Matsushita Electric Industrial Co., Ltd. | Data reception method and apparatus including reception of data in a first transmission and a retransmission |
US7688913B2 (en) | 2000-12-27 | 2010-03-30 | Panasonic Corporation | Radio transmitting apparatus, radio receiving apparatus, and M-ary modulation communication system |
US7003050B2 (en) | 2000-12-27 | 2006-02-21 | Matsushita Electric Industrial Co., Ltd. | Radio transmitter, radio receiver, and multilevel modulation communication system |
US7697565B2 (en) | 2001-02-21 | 2010-04-13 | Panasonic Corporation | Data transmission apparatus and communication system using a constellation rearrangement |
US7111219B2 (en) | 2001-02-21 | 2006-09-19 | Matsushita Electric Industrial Co., Ltd. | Data transmission apparatus using a constellation rearrangement |
US6892341B2 (en) | 2001-02-21 | 2005-05-10 | Matsushita Electric Industrial Co., Ltd. | Data transmission apparatus using a constellation rearrangement |
WO2002069593A1 (en) * | 2001-02-27 | 2002-09-06 | Matsushita Electric Industrial Co., Ltd. | Digital radio communication system |
US6990627B2 (en) | 2001-02-27 | 2006-01-24 | Matsushita Electric Industrial Co., Ltd. | Digital radio communication system for communicating M-ary modulated error detection units |
US7782973B2 (en) | 2001-04-04 | 2010-08-24 | Samsung Electronics Co., Ltd | Apparatus and method for transporting/receiving data in a CDMA mobile communication system |
KR100539862B1 (en) * | 2001-04-04 | 2005-12-28 | 삼성전자주식회사 | Method and apparatus for transporting and receiving data in cdma mobile system |
US9276705B2 (en) | 2001-04-04 | 2016-03-01 | Samsung Electronics Co., Ltd | Apparatus and method for transporting/receiving data in a CDMA mobile communication system |
GB2392069A (en) * | 2001-06-09 | 2004-02-18 | Samsung Electronics Co Ltd | Rearranging codeword sequences for prioritising the mapping of bits |
US7130358B2 (en) | 2001-06-09 | 2006-10-31 | Samsung Electronics Co., Ltd. | Method and apparatus for rearranging codeword sequence in a communication system |
GB2378869A (en) * | 2001-06-09 | 2003-02-19 | Samsung Electronics Co Ltd | Rearranging codeword sequences for prioritising the mapping of bits |
US7340008B2 (en) | 2001-06-09 | 2008-03-04 | Samsung Electronics Co., Ltd | Method and apparatus for rearranging codeword sequence in a communication system |
GB2378869B (en) * | 2001-06-09 | 2005-05-04 | Samsung Electronics Co Ltd | Method and apparatus for rearranging codeword sequence in a communication system |
US7573852B2 (en) | 2001-10-15 | 2009-08-11 | Samsung Electronics Co., Ltd | Transmitting/receiving apparatus and method for packet retransmission in a mobile communication system |
US6798846B2 (en) | 2001-11-16 | 2004-09-28 | Matsushita Electric Industrial Co., Ltd. | ARQ retransmission with reordering scheme employing multiple redudancy versions and receiver/transmitter therefor |
US7471740B2 (en) | 2001-11-16 | 2008-12-30 | Panasonic Corporation | ARQ retransmission with reordering scheme employing multiple redundancy versions and receiver/transmitter therefor |
US7227904B2 (en) | 2001-11-16 | 2007-06-05 | Matsushita Electric Industrial Co., Ltd. | Method for modifying a bit sequence in an ARQ retransmission, receiver and transmitter therefor |
US7110470B2 (en) | 2001-11-16 | 2006-09-19 | Matsushita Electric Industrial Co., Ltd. | ARQ retransmission with reordering scheme employing multiple redundancy versions and receiver/transmitter therefor |
US7787561B2 (en) | 2001-11-16 | 2010-08-31 | Panasonic Corporation | Hybrid ARQ retransmission with reordering scheme employing multiple redundancy versions and receiver/transmitter therefor |
US6769085B2 (en) | 2001-11-16 | 2004-07-27 | Matsushita Electric Industrial Co., Ltd. | Method for modifying a bit sequence in an ARQ restransmission, receiver and transmitter therefor |
KR100462555B1 (en) * | 2002-07-22 | 2004-12-17 | 한국전자통신연구원 | Apparatus and method of interleaving/deinterleaving in communication systems using channel reciprocity |
US7693179B2 (en) | 2002-11-29 | 2010-04-06 | Panasonic Corporation | Data transmission apparatus using a constellation rearrangement |
JP4808722B2 (en) * | 2005-09-06 | 2011-11-02 | Kddi株式会社 | Data transmission system and data transmission method |
US8229021B2 (en) | 2005-09-06 | 2012-07-24 | Kddi Corporation | Data transmission system and data transmission method |
JP2008211489A (en) * | 2007-02-26 | 2008-09-11 | Mitsubishi Electric Corp | Mapping method, decoding method, and communicating system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH066399A (en) | 1994-01-14 | Data transmitting method |
JPH05219021A (en) | 1993-08-27 | Orthogonal frequency division multiplex digital signal transmission system and transmitter and receiver used therefor |
WO1992016054A1 (en) | 1992-09-17 | Signal weighting system for digital receiver |
JPH06216958A (en) | 1994-08-05 | Multi-level code communication equipment |
JP2001513299A (en) | 2001-08-28 | System and method for transmitting special marker symbols |
US4455663A (en) | 1984-06-19 | Full duplex modems and synchronizing methods and apparatus therefor |
US20090202066A1 (en) | 2009-08-13 | Scrambler, scramble processing method, and program |
JPH0758795A (en) | 1995-03-03 | Method and apparatus for transmission of plurality of signals |
CN101040540A (en) | 2007-09-19 | Code modulation and demodulation system and signal transmitting and receiving method thereof |
US6373903B1 (en) | 2002-04-16 | Apparatus and method for increasing the effective data rate in communication systems utilizing phase modulation |
JPS60134545A (en) | 1985-07-17 | Data communication signal structure |
JPH09247226A (en) | 1997-09-19 | Quadrature modulated wave demodulator |
US20060233283A1 (en) | 2006-10-19 | Demodulator with individual bit-weighting algorithm |
JP3446816B2 (en) | 2003-09-16 | Signal transmission method with clock information |
JP2005027326A (en) | 2005-01-27 | Demodulator and demodulation method for recovering transmitted symbol represented by received qam signal |
JPH02100548A (en) | 1990-04-12 | Effective area decision signal generating circuit |
JPH0748677B2 (en) | 1995-05-24 | Equalizer |
JPH0225306B2 (en) | 1990-06-01 | |
US20210328852A1 (en) | 2021-10-21 | Systems and Methods for Supporting Both Pulse Amplitude Modulation and Quadrature Amplitude Modulation |
JPH01122242A (en) | 1989-05-15 | Radio digital transmission/reception system |
JPH077967B2 (en) | 1995-01-30 | Digital wireless transmission method |
JP3029283B2 (en) | 2000-04-04 | Frame synchronization method |
KR20040033203A (en) | 2004-04-21 | Logical and diversity combining method |
SU1415451A1 (en) | 1988-08-07 | Two-channel device for receiving data signals |
JPH05219006A (en) | 1993-08-27 | Orthogonal frequency division multiplexing digital signal transmission system and coding / modulating device and demodulating device used therefor |