JPH03214826A - Retransmission restriction type idle line control method - Google Patents
Retransmission restriction type idle line control methodInfo
- Publication number
- JPH03214826A JPH03214826A JP2008210A JP821090A JPH03214826A JP H03214826 A JPH03214826 A JP H03214826A JP 2008210 A JP2008210 A JP 2008210A JP 821090 A JP821090 A JP 821090A JP H03214826 A JPH03214826 A JP H03214826A
- Authority
- JP
- Japan
- Prior art keywords
- access
- channel
- signal
- retransmission
- base station
- 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
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、移動通信におけるランダムアクセス制御方法
に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a random access control method in mobile communications.
（従来の技術）
移動通信におけるランダムアクセス制御方法の従来例の
１つであるデータスロット予約型空線制御方法では、移
動機から基地局への上り信号同士の衝突による上りアク
セスチャネルのチャネル効率低下を抑えるために、前記
上り信号が要求信号部分とデータ信号部分に２分されて
いる。(Prior Art) In the data slot reservation type idle line control method, which is one of the conventional examples of random access control methods in mobile communications, the channel efficiency of the uplink access channel decreases due to collisions between uplink signals from the mobile device to the base station. In order to suppress this, the upstream signal is divided into two parts: a request signal part and a data signal part.
第２図は従来のデータスロット予約型空線制御方法の動
作を示すタイミンクチャートである。同図において、基
地局にアクセスを試みようとする移動機は、まずＡ−ｃ
ｈ下りチャネル２−１において報知されている空線信号
２−７を確認した後に、Ａ−ｃｈ上りチャネル２−２を
介して要求信号２−４を送信し、基地局からの応答を待
つ。移動機からの要求信号２−４を受信した基地局では
直ちに空線信号を禁止信号２−３に変え、要求信号２−
３を発信した移動機に対してＡ−ｃｈ下りチャネル２−
１を介して応答信号２−５を送信する。応答信号２−５
を受信後、移動機は再びＡ−ｃｈ上りチャネル２−２を
用いてデータ信号２−６の部分の送信を開始する。FIG. 2 is a timing chart showing the operation of the conventional data slot reservation type idle line control method. In the figure, a mobile device attempting to access a base station first
After confirming the idle signal 2-7 broadcast on the H downlink channel 2-1, it transmits the request signal 2-4 through the A-ch uplink channel 2-2 and waits for a response from the base station. Upon receiving the request signal 2-4 from the mobile device, the base station immediately changes the idle line signal to the prohibition signal 2-3, and transmits the request signal 2-4.
A-ch down channel 2- to the mobile device that transmitted 3-
1 to transmit a response signal 2-5. Response signal 2-5
After receiving the data signal, the mobile device starts transmitting the data signal 2-6 again using the A-ch uplink channel 2-2.
ところで例えは現行の自動車電話においては、この発生
があらかじめ定められた設定値を越えて増加した場合上
りアクセスチャネルかふくそう状態になるのを防ぐため
に、特定ユーザーのみにアクセスを許可するために通常
の空線信号とは別のＶＩＰ空線信号を設定しているＶＩ
Ｐ空線制御方法がある。第３図はＶＩＰ空線制御方法の
動作を示すチミングチャートである。同図において、Ｖ
ＩＰ空線信号３−７が報知されている場合には一般ユー
ザのアクセスは禁止され、特定ユーザのみ要求信号の送
信が許可される。即ち、一時的にこの発生か増大して制
御チャネルか不安定になった場合、特定ユーザのみにア
クセスを許可する方式を採用している。By the way, for example, in current car phones, in order to prevent the uplink access channel from becoming congested if the number of occurrences increases beyond a predetermined setting value, the normal A VI that has a VIP blank signal that is different from the blank signal
There is a P empty line control method. FIG. 3 is a timing chart showing the operation of the VIP empty line control method. In the same figure, V
When the IP idle signal 3-7 is broadcast, access by general users is prohibited, and only specific users are permitted to transmit request signals. That is, if the occurrence of this problem temporarily increases and the control channel becomes unstable, a method is adopted in which access is permitted only to a specific user.
（発明が解決しようとする課題）
しかしながら、上記従来の方法では、制御チャネルの安
定性は保たれるものの、規制がかかつている間他のユー
ザーは全くアクセスが不可能であるのてチャネル効率の
点からもあまり得策てあるとは言えない。(Problem to be Solved by the Invention) However, in the conventional method described above, although the stability of the control channel is maintained, other users cannot access it at all while the regulation is in place, so the channel efficiency is reduced. I can't say it's a good idea either.
本発明は高トラヒック時においてチャネル効率の維持と
制御チャネルの安定性を両立させることを目的とする。An object of the present invention is to maintain both channel efficiency and control channel stability during high traffic.
（課題を解決するための手段）
本発明は前記問題点を解決するために、無線基地局と、
基地局が制御する複数の移動機からなる移動通信システ
ムであって、移動機から基地局への上りアクセスチャネ
ル及び基地局から移動機の下り応答チャネルからなる制
御チャネルを有し、各移動機が必要に応じて基地局に対
して前記上りアクセルチャネルを用いランダムアクセス
を行うランダムアクセス制御方法において、呼の発生が
予め定められた設定値を越えて増加した場合、アクセス
に失敗した移動機からのアクセス信号の再送規制が、下
り応答チャネルによりアクセス信号の再送を禁止する再
送規制信号を当該移動機に報知することにより行なわれ
ることに特徴がある。(Means for Solving the Problems) In order to solve the above problems, the present invention provides a wireless base station,
A mobile communication system consisting of a plurality of mobile devices controlled by a base station, which has a control channel consisting of an uplink access channel from the mobile device to the base station and a downlink response channel from the base station to the mobile device. In a random access control method that performs random access to a base station using the uplink access channel as necessary, if the number of calls increases beyond a predetermined setting value, a A feature is that access signal retransmission restriction is performed by notifying the mobile device of a retransmission restriction signal that prohibits retransmission of access signals through a downlink response channel.
（作用）
以上の動作による本発明によれば、一時的に呼の発生が
増大した場合における制御チャネルの安定性と、チャネ
ル効率の維持とを両立させるために、トラヒック増大時
においてアクセスに失敗したアクセス信号の再送を規制
する。これは下り応答チャネルにおいて現行の自動車電
話で使用されている空線信号、ＶＩＰ空線信号、禁止信
号等の他に、アクセス信号の再送を禁止する信号を用い
ることによって実現される。(Operation) According to the present invention with the above-described operation, in order to achieve both stability of the control channel and maintenance of channel efficiency when the number of calls temporarily increases, access failure is prevented when traffic increases. Regulate retransmission of access signals. This is achieved by using, in the downlink response channel, a signal that prohibits retransmission of the access signal, in addition to the idle line signal, VIP idle signal, prohibition signal, etc. used in current car telephones.
したがって、本発明は前記問題点を解決でき、高トラヒ
ック時においてチャネル効率の維持と制御チャネルの安
定性を両立させることかできる。Therefore, the present invention can solve the above-mentioned problems, and can maintain both channel efficiency and control channel stability during high traffic.
（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。(Example) Hereinafter, one embodiment of the present invention will be described based on the drawings.
第１図は本発明の一実施例の再送規制型空線制御方法の
動作を示すタイミングチャートである。FIG. 1 is a timing chart showing the operation of a retransmission restriction type idle line control method according to an embodiment of the present invention.
同図において、基地局にアクセスしようとする移動機は
まず下り応答チャネル１−１において空線信号１−７
（ ＶＩＰ空線信号）、もしくは再送規制信号１−１
０が報知されていることを確かめた後、上りアクセスチ
ャネル１−２を介してアクセス信号１−４（ユーザＡ）
を送信する。ここでもし他の移動機が送信したアクセス
信号との衝突の発生等によってアクセスに失敗した場合
、空線信号１−７が報知されている時はある時間をおい
て信号の再送を行うが、再送規制信号１−１０か報知さ
れている場合は直ちに送信失敗とし、再送は行わない。In the figure, a mobile device attempting to access a base station first receives an idle signal 1-7 on a downlink response channel 1-1.
(VIP blank line signal) or retransmission restriction signal 1-1
After confirming that 0 is broadcast, access signal 1-4 (user A) is transmitted via uplink access channel 1-2.
Send. If access fails due to a collision with an access signal transmitted by another mobile device, the signal will be retransmitted after a certain period of time when idle signal signals 1-7 are being broadcast. If the retransmission restriction signal 1-10 is broadcast, the transmission is immediately determined to be a failure and no retransmission is performed.
次に、本方式を移動通信に適用した際の実施例を述べる
。チャネル構成としては従来方式と同様にＡ−ｃｈ，
Ｐ−ｃｈ，及びＶ−ｃｈとし、Ａ−ｃｈ下りにおいて空
線信号、ＶＩＰ空線信号及び規制信号を報知するものと
する。この３種の信号は本実施例のチャネル効率特性を
示す第４図に示すようにアクセスを試みようとする移動
機の数（トラヒック）によって使い分けられる。アクセ
スを試みようとする移動機はＡ−ｃｈ下りにおいて報知
されているこれらの信号を認識し、空線信号の場合はＡ
−ｃｈ上っでアクセス信号を送信した後にタイマを作動
させ、一定時間内に基地局からの応答がない場合は従来
方式と同様、ランダムな待ち時間の後信号の再送を行う
。再送規制信号の場合は、アクセス信号の送信後、基地
局からの応答がない場合には直ちにアクセス動作を停止
する。Next, an example will be described in which this method is applied to mobile communication. The channel configuration is the same as the conventional system: A-ch,
It is assumed that P-ch and V-ch are used to broadcast a vacant line signal, a VIP vacant line signal, and a regulation signal on the downlink of A-ch. These three types of signals are used depending on the number of mobile devices (traffic) attempting access, as shown in FIG. 4, which shows the channel efficiency characteristics of this embodiment. A mobile device attempting access recognizes these signals broadcast on the A-ch downlink, and in the case of a blank signal, it
- After transmitting the access signal on the channel, a timer is activated, and if there is no response from the base station within a certain period of time, the signal is retransmitted after a random waiting time as in the conventional system. In the case of a retransmission restriction signal, if there is no response from the base station after transmitting the access signal, the access operation is immediately stopped.
また本実施例では第４図に示すようにトラヒックが中間
にある時には効果が高い。従って、基地局では常時トラ
ヒックを整理していて、それに応じて３種類のランダム
方法を使い分けることも考えられる。つまりトラヒック
が小さい時は通話方法による。トラヒックが増加してき
たら、本実施例の再送規制を行い。更に、トラヒックが
増加したら、ＶＩＰ空線制御に移行するようにすれば、
効串的に制御チャネルを使用できる。Furthermore, this embodiment is highly effective when the traffic is in the middle, as shown in FIG. Therefore, it is conceivable that the base station constantly organizes traffic and uses three types of random methods accordingly. In other words, when traffic is low, it depends on the call method. When the traffic increases, the retransmission restriction according to this embodiment is implemented. Furthermore, if the traffic increases, you can shift to VIP idle control.
Control channels can be used effectively.
（発明の効果）
以上説明したように、本発明によれば、一時的に呼量が
増大した場合でも、アクセスに失敗したアクセス信号の
再送を禁止することによって呼量を制御し、要求信号の
衝突による共有回線の無効占有時間を短縮することによ
って上りアクセスチャネルのふくそうを防止し、上りア
クセスチャネルのチャネル効率とチャネルの安定状態を
維持てきる。また、特定ユーザのみにアクセスを許可す
る場合と違って一般ユーザでもアクセスが可能であると
いう利点がある。(Effects of the Invention) As explained above, according to the present invention, even if the traffic volume increases temporarily, the traffic volume is controlled by prohibiting the retransmission of access signals for which access has failed, and the request signal is By shortening the invalid occupation time of the shared line due to collision, congestion of the uplink access channel can be prevented, and the channel efficiency and channel stability of the uplink access channel can be maintained. Also, unlike the case where access is allowed only to specific users, there is an advantage that even general users can access it.
第１図は本発明の一実施例の再送規制型空線制御方法の
動作を示すタイミングチャート、第２図は従来のデータ
スロット予約型空線制御方法の動作を示すタイミングチ
ャート、第３図はＶＩＰ空線制御方法の動作を示すチミ
ングチャート、
第４図は本発明による上りアクセスチャネルのチャネル
効率の特性図である。
１−１．３−１ ・・・下り応答チャネル、ｉ−２．
３−２ ・・・上りアクセスチャネル、１−３． １−
１３．２−３．３−５・・・禁止信号、１−４． １−
１１・・φアクセス信号（ユーザＡ）１−５． １−１
４・・・アクセス信号（ユーザＢ）１−６ ・・・アク
セス信号の再送、
１−７．２−７．３−３ ・・・空線信号、１−８ ・
・・下り制御チャネル、
１−９ ・・・上り制御チャネル、
１−１０・・・再送規制信号、
１−１２・・・アクセス動作の停止、
１−１５・・・アクセス信号（ユーザＣ）、２−１
・・・Ａ−ｃｈ下りチャネル、２−２ ・・・Ａ−ｃ
ｈ上りチャネル、２−４ ・・・要求信号、
２−５ ・・・応答信号、
２−６ ・・・データ信号、
３−４ ・・・アクセス信号（一般ユーザ）、３−６
・・・アクセス信号（ＶＩＰ）、３−７ ・・・ＶＩＰ
空線信号、
４−１ ・・・再送規制時のチャネル効率特性、４−
２ ・・・無規制時のチャネル効率特性、４−３ ・・
・ＶＩＰ規制時のチャネル効率特性、４−４ ・・・再
送規制制御領域、
４−５ ・・・ＶＩＰ規制制御領域。FIG. 1 is a timing chart showing the operation of the retransmission restriction type idle line control method according to an embodiment of the present invention, FIG. 2 is a timing chart showing the operation of the conventional data slot reservation type idle line control method, and FIG. 3 is a timing chart showing the operation of the conventional data slot reservation type idle line control method. FIG. 4 is a timing chart showing the operation of the VIP idle line control method. FIG. 4 is a characteristic diagram of channel efficiency of an uplink access channel according to the present invention. 1-1.3-1... Downlink response channel, i-2.
3-2...uplink access channel, 1-3. 1-
13.2-3.3-5...Prohibition signal, 1-4. 1-
11...φ access signal (user A) 1-5. 1-1
4... Access signal (user B) 1-6... Retransmission of access signal, 1-7.2-7.3-3... Blank line signal, 1-8 ・
...downlink control channel, 1-9...uplink control channel, 1-10...retransmission restriction signal, 1-12...stop of access operation, 1-15...access signal (user C), 2-1
...A-ch down channel, 2-2 ...A-c
h Uplink channel, 2-4...Request signal, 2-5...Response signal, 2-6...Data signal, 3-4...Access signal (general user), 3-6
...Access signal (VIP), 3-7 ...VIP
Blank line signal, 4-1...Channel efficiency characteristics when retransmission is restricted, 4-
2...Channel efficiency characteristics when unregulated, 4-3...
-Channel efficiency characteristics during VIP regulation, 4-4...Retransmission regulation control area, 4-5...VIP regulation control area.
Claims (1)
なる移動通信システムであって、前記移動機から前記基
地局への上りアクセスチャネル及び前記基地局から前記
移動機の下り応答チャネルからなる制御チャネルを有し
、各前記移動機が必要に応じて前記基地局に対して前記
上りアクセルチャネルを用いランダムアクセスを行うラ
ンダムアクセス制御方法において、 呼の発生が予め定められた設定値を越えて増加した場合
、アクセスに失敗した前記移動機からのアクセス信号の
再送規制が、前記下り応答チャネルによりアクセス信号
の再送を禁止する再送規制信号を当該移動機に報知する
ことにより行なわれるを特徴とする再送規制型空線制御
方法。[Scope of Claims] A mobile communication system consisting of a radio base station and a plurality of mobile devices controlled by the base station, comprising an uplink access channel from the mobile device to the base station and an uplink access channel from the base station to the mobile device. The random access control method has a control channel consisting of a downlink response channel, and each mobile device performs random access to the base station as necessary using the uplink access channel, wherein call generation is determined in advance. If the increase exceeds the set value, the retransmission of access signals from the mobile device that has failed in access is restricted by notifying the mobile device of a retransmission restriction signal that prohibits the retransmission of access signals through the downlink response channel. A retransmission restriction type idle line control method characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008210A JPH03214826A (en) | 1990-01-19 | 1990-01-19 | Retransmission restriction type idle line control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008210A JPH03214826A (en) | 1990-01-19 | 1990-01-19 | Retransmission restriction type idle line control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03214826A true JPH03214826A (en) | 1991-09-20 |
Family
ID=11686880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008210A Pending JPH03214826A (en) | 1990-01-19 | 1990-01-19 | Retransmission restriction type idle line control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03214826A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005043397A1 (en) * | 2003-10-31 | 2005-05-12 | Vodafone K.K. | E-mail transmission method and mobile communication terminal apparatus |
| WO2006051823A1 (en) * | 2004-11-09 | 2006-05-18 | Ntt Docomo, Inc. | Mobile communication system, wireless line control station, mobile station, and wireless base station |
-
1990
- 1990-01-19 JP JP2008210A patent/JPH03214826A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005043397A1 (en) * | 2003-10-31 | 2005-05-12 | Vodafone K.K. | E-mail transmission method and mobile communication terminal apparatus |
| WO2006051823A1 (en) * | 2004-11-09 | 2006-05-18 | Ntt Docomo, Inc. | Mobile communication system, wireless line control station, mobile station, and wireless base station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6891821B2 (en) | Self-aligning backhaul system, method and apparatus | |
| US7499707B2 (en) | Method and system for communicating using a quiescent period | |
| US6226279B1 (en) | Allowing several multiple access schemes for packet data in a digital cellular communication system | |
| US8406203B2 (en) | Transmission rate switching based on rate switching time information | |
| JP2987199B2 (en) | Method for adapting a mobile radio communication system to traffic and performance requirements | |
| EP0889664B1 (en) | Random access channel congestion control for broadcast teleservice acknowledgment messages | |
| US20240147533A1 (en) | Sidelink communication method and apparatus, and device and storage medium | |
| CA2171978C (en) | Method and system for providing uplink/downlink collision avoidance in a wireless communication system | |
| RU2150794C1 (en) | Process and device in radio communication system | |
| KR101243681B1 (en) | Spectrum management in dynamic spectrum access wireless systems | |
| WO1999021381A1 (en) | Access scheme for packet data in a digital cellular communication system | |
| JP2006333508A (en) | Method and apparatus for improving performance of packet communications system | |
| EP0720310B1 (en) | Random access system for mobile communication | |
| JPH03231523A (en) | Mobile communication control system | |
| US6240298B1 (en) | Method for easing congestion in a mobile communication system by temporarily converting a control channel to a conversation channel | |
| KR100375283B1 (en) | Method of balancing availability of communication links in communication systems | |
| US20250193907A1 (en) | User equipment and method for transmitting channel retention signal in sidelink communication | |
| US20230422345A1 (en) | Methods, communications devices and infrastructure equipment | |
| US20250024470A1 (en) | Method and device for performing sidelink communications | |
| JPH03214826A (en) | Retransmission restriction type idle line control method | |
| EP1575190B1 (en) | Dynamically setting and changing a TDMA slotting structure to accomodate different call types | |
| CN116097880B (en) | Random access trigger control method, device, equipment and storage medium | |
| JP2899042B2 (en) | Retransmission control type airline control method | |
| JPH08213990A (en) | Wireless packet communication method and apparatus | |
| JPS62226741A (en) | Radio data communication method |