JPH05145527A - Data transmission method - Google Patents
Data transmission methodInfo
- Publication number
- JPH05145527A JPH05145527A JP3304413A JP30441391A JPH05145527A JP H05145527 A JPH05145527 A JP H05145527A JP 3304413 A JP3304413 A JP 3304413A JP 30441391 A JP30441391 A JP 30441391A JP H05145527 A JPH05145527 A JP H05145527A
- Authority
- JP
- Japan
- Prior art keywords
- information
- signal
- transmission
- error
- equipment
- Prior art date
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Detection And Prevention Of Errors In Transmission (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はディジタル移動信号にお
けるＡＲＱによるエラーフリー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 an ARQ error-free data transmission method for digital mobile signals.
【０００２】[0002]
【従来の技術】図２は、ディジタル移動通信装置間の情
報信号伝送の概念を示すブロック図である。図２におい
て、２０ａは第１のディジタル移動通信装置（以下、Ｍ
ＳＳ1という）、２０ｂは第２のディジタル移動通信装
置（以下、ＭＳＳ2という）である。また、２１は双方向
の情報信号チャネル（以下、ＴＣＨという）、２２ａは
ＭＳＳ1２０ａの制御部、２３ａはＭＳＳ1２０ａの送信
部、２４ａはＭＳＳ2２０ａの受信部、２５ａはＴＣＨ
２１上の情報信号の入出力を切り換える送受信切換部、
２２ｂはＭＳＳ2２０ａの制御部、２３ｂはＭＳＳ2２０
ｂの送信部、２４ｂはＭＳＳ2２０ｂの受信部、２５ｂ
はＭＳＳ2２０ｂのＴＣＨ２１上の情報信号の入出力を
切り換える送受信切換部である。2. Description of the Related Art FIG. 2 is a block diagram showing the concept of information signal transmission between digital mobile communication devices. In FIG. 2, 20a is a first digital mobile communication device (hereinafter referred to as M
That SS 1), 20b denotes a second digital mobile communication device (hereinafter, referred MSS 2). Also, 21 two-way information signal channel (hereinafter, referred to as TCH), 22a is a control unit of the MSS 1 20a, 23a is the transmission unit of the MSS 1 20a, 24a are receiving portion of the MSS 2 20a, 25a are TCH
A transmission / reception switching unit for switching the input / output of the information signal on 21.
22b the control unit of the MSS 2 20a, 23b are MSS 2 20
b transmitter, 24b a MSS 2 20b receiver, 25b
Is a transmission / reception switching unit for switching the input / output of the information signal on the TCH 21 of the MSS 2 20b.
【０００３】図３は、ＴＣＨ２１上の情報信号のフレー
ム（以下、ＡＲＱフレームという）フォーマットであ
る。図３において３３は送信の場合は送信する情報信
号、受信の場合は受信する情報信号となるフォワードチ
ャネル情報であり、３２はフォワードチャネル情報３３
の識別用の番号（以下、ＩＤという）となるフォワード
チャネル制御情報、３１は送信の場合は受信したＡＲＱ
フレームが正しく受信できているまたは誤って受信し再
送を要求するかを示し、受信の場合は送信したＡＲＱフ
レームが正しく受信できているまたは誤って受信し再送
を要求するかを示すバックワードチャネル制御情報、３
４はＡＲＱフレームの誤りを検出するための誤り検出符
号である。FIG. 3 shows a frame (hereinafter referred to as ARQ frame) format of an information signal on the TCH 21. In FIG. 3, reference numeral 33 denotes forward channel information which is an information signal to be transmitted in the case of transmission and is information signal to be received in the case of reception, and 32 is the forward channel information 33.
Forward channel control information, which is a number (hereinafter, referred to as ID) for identifying the ARQ, 31 is a received ARQ in the case of transmission
Backward channel control indicating whether the frame is correctly received or received incorrectly and requests retransmission, and if received, indicates whether the transmitted ARQ frame is correctly received or received incorrectly and requests retransmission. Information, 3
4 is an error detection code for detecting an error in the ARQ frame.
【０００４】上記において、ＭＳＳ1２０ａからＭＳＳ2
２０ｂへのＡＲＱによるエラーフリーデータ伝送方法に
よる情報信号の伝送は、次のようにして行なわれる。こ
こで、ＭＳＳ1２０ａからＭＳＳ2２０ｂへの情報信号を
フォワード情報信号とし、ＭＳＳ2２０ｂからＭＳＳ1２
０ａへの情報信号をバックワード情報信号とする。In the above, from MSS 1 20a to MSS 2
The transmission of the information signal to 20b by the error-free data transmission method by ARQ is performed as follows. Here, the information signal from the MSS 1 20a to the MSS 2 20b is used as a forward information signal, and the MSS 2 20b to the MSS 1 2
The information signal to 0a is the backward information signal.
【０００５】すなわち、ＭＳＳ1２０ａ側では制御部２
２ａによって送受信切換部２５ａを送信に設定し、前回
受信したＭＳＳ2２０ｂからのバックワード情報信号を
誤り検出符号３４によって誤りを検出すればＩＤを再送
要求とし、誤りがなければ確認としてバックワードチャ
ネル制御情報３１を、また、バックワード情報信号のバ
ックワードチャネル制御信号３１から再送要求であれば
そのＩＤを、確認であれば（ＩＤ＋１）のデータとし
て、フォワードチャネル制御情報３２とフォワードチャ
ネル情報３３を決定し、誤り検出符号３４を付加して図
３のようにフォーマットしたフォワード情報信号を、送
信部２３ａによって変調し、変調されたフォワード情報
信号は送受信切換部２５ａからＴＣＨ２１を介しＭＳＳ
2２０ｂ側の送受信切換部２５ｂに伝送される。ＭＳＳ2
２０ｂ側では制御部２２ｂによって送受信切換部２５ｂ
を受信にしておき、ＴＣＨ２１から受信したフォワード
情報信号を受信部２４ｂによってＭＳＳ1２０ａからの
フォワード情報信号を受信する。次にＭＳＳ2２０ｂで
は、制御部２２ｂによって送受信切換部２５ｂを送信に
設定し、誤り検出符号３４によってフォワード情報信号
の誤りを検出すればそのＩＤを再送要求とし、誤りがな
ければ確認としてバックワードチャネル制御情報３１を
決定し、また、フォワード情報信号のバックワードチャ
ネル制御情報３１から再送要求であればそのＩＤを、確
認であれば（ＩＤ＋１）のデータとして、フォワードチ
ャネル制御情報３２とフォワードチャネル情報３３を決
定し、誤り検出符号３４を付加して図３のようにフォー
マットしたバックワード情報信号を送信部２３ｂにて変
調し、変調されたバックワード情報信号は送受信切換部
２５ｂからＴＣＨ２１を介してＭＳＳ1２０ａ側の送受
信切換部２５ａに伝送される。ＭＳＳ1２０ａでは、制
御部２２ａによって送受信切換部２５ａを受信に設定
し、受信したバックワード情報信号は受信部２４ａにて
復調されＭＳＳ2２０ｂからのバックワード情報信号が
ＭＳＳ1２０ａに受信される。That is, on the MSS 1 20a side, the control unit 2
2a sets the transmission / reception switching unit 25a to transmission, and if an error is detected in the backward received information signal from the MSS 2 20b received last time by the error detection code 34, the ID is set as a retransmission request, and if there is no error, it is confirmed as a backward channel. If the control information 31 is the retransmission request from the backward channel control signal 31 of the backward information signal, its ID is sent, and if it is confirmed, the forward channel control information 32 and the forward channel information 33 are used as (ID + 1) data. The forward information signal determined and added with the error detection code 34 and formatted as shown in FIG. 3 is modulated by the transmission unit 23a, and the modulated forward information signal is transmitted from the transmission / reception switching unit 25a through the TCH 21 to the MSS.
2 is transmitted to the transmission / reception switching unit 25b on the 20b side. MSS 2
On the side of 20b, the control unit 22b controls the transmission / reception switching unit 25b.
And the forward information signal received from the TCH 21 is received by the receiving unit 24b from the MSS 1 20a. Next, in the MSS 2 20b, the control unit 22b sets the transmission / reception switching unit 25b to transmission, and if an error in the forward information signal is detected by the error detection code 34, the ID is set as a retransmission request. The channel control information 31 is determined, and if the backward channel control information 31 of the forward information signal is a retransmission request, its ID is used, and if it is a confirmation, (ID + 1) data is used as the forward channel control information 32 and the forward channel information. 33 is determined, the backward information signal formatted as shown in FIG. 3 by adding the error detection code 34 is modulated by the transmission section 23b, and the modulated backward information signal is transmitted from the transmission / reception switching section 25b through the TCH 21. The data is transmitted to the transmission / reception switching unit 25a on the MSS 1 20a side. In the MSS 1 20a, the transmission / reception switching unit 25a is set to receive by the control unit 22a, the received backward information signal is demodulated by the receiving unit 24a, and the backward information signal from the MSS 2 20b is received by the MSS 1 20a. ..
【０００６】以上のようにしてＡＲＱによるエラーフリ
ーデータ伝送方法による情報信号の伝送を行なうことが
できる。As described above, the information signal can be transmitted by the error-free data transmission method by ARQ.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、上記従
来のＡＲＱによるエラーフリーデータ伝送方法による情
報信号の伝送においては、ＡＲＱフレームに誤り訂正が
可能であるビット数の誤りが検出されても、１フレーム
の再送によって誤りを回復せねばならず、再送回数の増
加という実用上好ましくない問題点がある。However, in the transmission of the information signal by the above-mentioned conventional error-free data transmission method by ARQ, even if an error of the number of bits capable of error correction is detected in the ARQ frame, one frame is detected. The error has to be recovered by re-sending, and there is a practically undesirable problem that the number of resends increases.
【０００８】本発明は、従来のこのような問題点を解決
するもので、ＭＳＳ1２０ａとＭＳＳ2２０ｂとのＡＲＱ
によるエラーフリーデータ伝送機能を保持したまま、再
送回数の低減を図り、スループットが向上し、ディジタ
ル移動通信装置の消費電力を低減するデータ伝送方法の
提供を目的とするものである。The present invention solves the above-mentioned problems of the prior art, and the ARQ of MSS 1 20a and MSS 2 20b.
It is an object of the present invention to provide a data transmission method capable of reducing the number of retransmissions, improving throughput, and reducing the power consumption of a digital mobile communication device while maintaining the error-free data transmission function by the method.
【０００９】[0009]
【課題を解決するための手段】本発明は上記目的を達成
するために、送信信号であるフォワード情報信号に誤り
訂正符号を付加するステップと、受信信号であるバック
ワード情報信号の誤りを検出し訂正を施すステップを備
える。In order to achieve the above object, the present invention comprises a step of adding an error correction code to a forward information signal which is a transmission signal, and detecting an error in a backward information signal which is a reception signal. A step of making a correction is provided.
【００１０】[0010]
【作用】本発明は上記した構成によって、ディジタル移
動通信装置間でのＡＲＱによるエラーフリーデータ伝送
のスループットの向上とディジタル移動通信装置の消費
電力の低減を効果的に行なう。With the above structure, the present invention effectively improves the throughput of ARQ error-free data transmission between digital mobile communication devices and reduces the power consumption of the digital mobile communication devices.
【００１１】[0011]
【実施例】以下、本発明にかかわるＡＲＱによるエラー
フリーデータ伝送方法の一実施例について、図１を参照
して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an error free data transmission method by ARQ according to the present invention will be described below with reference to FIG.
【００１２】本実施例においても、図２のディジタル移
動通信装置間の情報信号伝送の構成となる。Also in this embodiment, the information signal transmission between the digital mobile communication devices of FIG. 2 is adopted.
【００１３】図１は本実施例によるＴＣＨ２１上におけ
るＡＲＱフレームフォーマットを示す図である。図１に
おいても、１１はバックワードチャネル制御情報、１２
はフォワードチャネル制御情報、１３はフォワードチャ
ネル情報であり、１４は誤り訂正符号である。FIG. 1 is a diagram showing an ARQ frame format on the TCH 21 according to this embodiment. Also in FIG. 1, 11 is backward channel control information, 12
Is forward channel control information, 13 is forward channel information, and 14 is an error correction code.
【００１４】次に、上記の動作について述べる。この場
合も、ＭＳＳ1２０ａからＭＳＳ2２０ｂへのＡＲＱによ
るエラーフリーデータ伝送方法による情報信号の伝送に
ついて述べる。Next, the above operation will be described. Also in this case, the transmission of the information signal from the MSS 1 20a to the MSS 2 20b by the error-free data transmission method by ARQ will be described.
【００１５】すなわち、ＭＳＳ1２０ａ側では制御部２
２ａによって送受信切換部２５ａを送信に設定し、前回
受信したＭＳＳ2２０ｂからのバックワード情報信号に
誤り訂正符号１４によって誤り訂正を施し誤りが無けれ
ば確認、誤りが残った場合はそのＩＤを再送要求として
バックワードチャネル制御信号１１を、また、バックワ
ード情報信号のバックワードチャネル制御情報１１から
再送要求であればそのＩＤを、確認であれば（ＩＤ＋
１）をデータとして、フォワードチャネル制御情報１２
とフォワードチャネル情報１３を決定し、誤り訂正符号
１４を付加して図１のようにフォーマットしたフォワー
ド情報信号を、送信部２３ａによって変調し、変調され
たフォワード情報信号は送受信切換部２５ａからＴＣＨ
２１を介しＭＳＳ2２０ｂ側の送受信切換部２５ｂに伝
送される。ＭＳＳ2２０ｂ側では制御部２２ｂによって
送受信切換部２５ｂを受信にしておき、ＴＣＨ２１から
受信したフォワード情報信号を受信部２４ｂによってＭ
ＳＳ1２０ａからのフォワード情報信号を受信する。次
にＭＳＳ2２０ｂでは、制御部２２ｂによって送受信切
換部２５ｂを送信に設定し、誤り訂正符号１４によって
誤り訂正を施し誤りが無ければ確認、誤りが残った場合
はそのＩＤを再送要求としてバックワードチャネル制御
情報１１を、また、バックワード情報信号のバックワー
ドチャネル制御信号１１から再送要求であればそのＩＤ
を、確認であれば（ＩＤ＋１）をデータとして、フォワ
ードチャネル制御情報１２とフォワードチャネル情報１
３を決定し、誤り訂正符号１４を付加して図１のように
フォーマットしたフォワード情報信号を送信部２３ｂに
て変調し、変調されたバックワード情報信号は送受信切
換部２５ｂよりＴＣＨ２１を介しＭＳＳ1２０ａ側の送
受信切換部２５ａに伝送される。ＭＳＳ1２０ａでは、
制御部２２ａによって送受信切換部２５ａを受信に設定
し、受信したバックワード情報信号は受信部２４ａにて
復調されＭＳＳ2２０ｂからのバックワード情報信号が
ＭＳＳ1２０ａに受信される。That is, on the MSS 1 20a side, the control unit 2
The transmission / reception switching unit 25a is set to transmission by 2a, the backward information signal from the MSS 2 20b received last time is error-corrected by the error correction code 14, and if there is no error, it is confirmed. If an error remains, the ID is retransmitted. The request is the backward channel control signal 11, the ID of the backward channel control information 11 of the backward information signal if the retransmission request is the ID, and if the confirmation is (ID +
1) as data, the forward channel control information 12
And the forward channel information 13 are determined, and the forward information signal formatted as shown in FIG. 1 by adding the error correction code 14 is modulated by the transmitting unit 23a, and the modulated forward information signal is transmitted from the transmission / reception switching unit 25a to the TCH.
It is transmitted to the transmission / reception switching unit 25b on the MSS 2 20b side via 21. On the side of the MSS 2 20b, the transmission / reception switching unit 25b is set to be received by the control unit 22b, and the forward information signal received from the TCH 21 is received by the receiving unit 24b.
Receive the forward information signal from SS 1 20a. Next, in the MSS 2 20b, the transmission / reception switching unit 25b is set to transmission by the control unit 22b, error correction is performed by the error correction code 14, and if there is no error, confirmation is made. If the channel control information 11 is a retransmission request from the backward channel control signal 11 of the backward information signal, its ID
If it is a confirmation, the forward channel control information 12 and the forward channel information 1 are set using (ID + 1) as data.
3, the forward information signal formatted as shown in FIG. 1 by adding the error correction code 14 is modulated by the transmitter 23b, and the modulated backward information signal is transmitted from the transmission / reception switching unit 25b via the TCH 21 to the MSS 1 It is transmitted to the transmission / reception switching unit 25a on the side of 20a. In the MSS 1 20a,
The transmission / reception switching unit 25a is set to receive by the control unit 22a, the received backward information signal is demodulated by the receiving unit 24a, and the backward information signal from the MSS 2 20b is received by the MSS 1 20a.
【００１６】このように本発明の実施例のデータ伝送方
法によれば、誤り訂正によって再送要求回数を低減した
ＡＲＱによるエラーフリーデータ伝送を行なう。As described above, according to the data transmission method of the embodiment of the present invention, error-free data transmission by ARQ in which the number of retransmission requests is reduced by error correction is performed.
【００１７】[0017]
【発明の効果】以上の実施例から明らかなように本発明
によれば、ディジタル移動通信装置間のＡＲＱによるエ
ラーフリーデータ伝送における再送回数が低減し、スル
ープットの向上とディジタル移動通信装置の消費電力を
低減し得るデータ伝送方法を提供できる。As is apparent from the above embodiments, according to the present invention, the number of retransmissions in error-free data transmission by ARQ between digital mobile communication devices is reduced, the throughput is improved and the power consumption of the digital mobile communication device is improved. It is possible to provide a data transmission method capable of reducing the noise.
【図１】本発明の実施例のデータ伝送方法におけるＡＲ
Ｑフレームフォーマット図FIG. 1 is an AR in a data transmission method according to an embodiment of the present invention.
Q frame format diagram
【図２】ディジタル移動通信装置の動作説明のための概
念を示すブロック図FIG. 2 is a block diagram showing a concept for explaining an operation of a digital mobile communication device.
【図３】従来の実施例のデータ伝送方法におけるＡＲＱ
フレームフォーマット図FIG. 3 is an ARQ in a data transmission method according to a conventional embodiment.
Frame format diagram
１１ バックワードチャネル制御情報 １２ フォワードチャネル制御情報 １３ フォワードチャネル情報 １４ 誤り訂正符号 11 backward channel control information 12 forward channel control information 13 forward channel information 14 error correction code
Claims (1)
おいて、送信信号であるフォワード情報信号に誤り訂正
符号を付加するステップと、受信信号であるバックワー
ド情報信号の誤りを検出し訂正を施すステップを備えた
データ伝送方法。1. In error-free data transmission by ARQ, a step of adding an error correction code to a forward information signal which is a transmission signal and a step of detecting and correcting an error in a backward information signal which is a reception signal are provided. Data transmission method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3304413A JPH05145527A (en) | 1991-11-20 | 1991-11-20 | Data transmission method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3304413A JPH05145527A (en) | 1991-11-20 | 1991-11-20 | Data transmission method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05145527A true JPH05145527A (en) | 1993-06-11 |
Family
ID=17932707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3304413A Pending JPH05145527A (en) | 1991-11-20 | 1991-11-20 | Data transmission method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05145527A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08275233A (en) * | 1995-04-03 | 1996-10-18 | Nec Corp | Restoration method for speech at deteriorated reception electric field |
| WO1997016044A1 (en) * | 1995-10-24 | 1997-05-01 | Ntt Mobile Communications Network Inc. | Retransmission control method for cdma mobile communication |
| US6292470B1 (en) | 1996-12-25 | 2001-09-18 | Sharp Kabushiki Kaisha | Data transmission system and method utilizing history information corresponding to correctly received frames |
-
1991
- 1991-11-20 JP JP3304413A patent/JPH05145527A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08275233A (en) * | 1995-04-03 | 1996-10-18 | Nec Corp | Restoration method for speech at deteriorated reception electric field |
| WO1997016044A1 (en) * | 1995-10-24 | 1997-05-01 | Ntt Mobile Communications Network Inc. | Retransmission control method for cdma mobile communication |
| US6157628A (en) * | 1995-10-24 | 2000-12-05 | Ntt Mobile Communications Network, Inc. | Retransmission control method of CDMA mobile communication |
| US6292470B1 (en) | 1996-12-25 | 2001-09-18 | Sharp Kabushiki Kaisha | Data transmission system and method utilizing history information corresponding to correctly received frames |
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