JPH03253126A - Resending regulating type idle line control method - Google Patents
Resending regulating type idle line control methodInfo
- Publication number
- JPH03253126A JPH03253126A JP4919590A JP4919590A JPH03253126A JP H03253126 A JPH03253126 A JP H03253126A JP 4919590 A JP4919590 A JP 4919590A JP 4919590 A JP4919590 A JP 4919590A JP H03253126 A JPH03253126 A JP H03253126A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- resending
- channel
- base station
- access
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 11
- 230000001105 regulatory effect Effects 0.000 title abstract description 5
- 238000010295 mobile communication Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は、移動通信における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 an access control method in mobile communications.
［従来の技術］
現行の自動車電話では、移動機から基地局への上り信号
同士の衝突による上り制御チャネルのチャネル効率低下
を抑えるために空線制御方式が採用されている。これは
上り制御チャネルの使用状況を下り制御チャネルにおい
て報知する方法であり、空き状態の場合は空線信号を、
使用中の場合は禁止信号を報知し、これに応じて移動機
がアクセス動作を行なうものである。[Prior Art] Current car telephones employ an idle line control method in order to suppress a decrease in channel efficiency of an uplink control channel due to collisions between uplink signals from a mobile device to a base station. This is a method of reporting the usage status of the uplink control channel on the downlink control channel, and if the channel is idle, an idle signal is sent,
If it is in use, a prohibition signal is broadcast, and the mobile device performs an access operation in response to this.
上述のような空線制御方式においては、呼の発生が予め
定めた設定値を越えて増加した場合に、上り制御チャネ
ルがふくそう状態になるのを防ぐために、特定ユーザの
みにアクセスを許可するため通常の空線信号とは別のＶ
ＩＰ空線信号を設定している。即ちＶＩＰ空線信号が報
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
、特定ユーザのみ発呼が許可される。In the above-mentioned idle line control method, in order to prevent the uplink control channel from becoming congested when the number of calls increases beyond a predetermined setting value, access is permitted only to specific users. V that is different from the normal blank line signal
IP idle signal is set. That is, when the VIP idle line signal is broadcast, general users are prohibited from accessing, and only specific users are allowed to make calls.
第２図にＶＩＰ空線信号による制御の概念を示す。同図
において、２−１は下り応答チャネル、２−２は上りア
クセスチャネル、２−３は空線信号、２−４は一級ユー
ザのアクセス信号、２−５は禁止信号、２−６はＶＩＰ
のアクセス信号、２−７はＶＩＰ空線信号を示している
。この図では初め通常の空線信号２−３が報知されてお
り、−毅ユーザ２−４とＶＩＰユーザ２−６の両方が発
呼を行なっているが（ここでは両者が衝突している）、
通常の空線信号がＶＩＰ空線信号２−７に切り換えられ
た後はＶＩＰユーザのみが発呼を許可されている様子を
示している。FIG. 2 shows the concept of control using the VIP idle signal. In the figure, 2-1 is a downlink response channel, 2-2 is an uplink access channel, 2-3 is a blank line signal, 2-4 is a first-class user access signal, 2-5 is a prohibition signal, and 2-6 is a VIP
The access signal 2-7 shows the VIP empty line signal. In this figure, a normal idle line signal 2-3 is initially broadcast, and both Tsuyoshi user 2-4 and VIP user 2-6 are making calls (here, the two are colliding). ,
After the normal idle line signal is switched to the VIP idle line signal 2-7, only VIP users are allowed to make calls.
［発明が解決しようとする課題］
前述のように、従来の方式においては一時的に呼の発生
が増大して制御チャネルが不安定になった場合に、特定
ユーザーのみにアクセスを許可する方式を採用している
。しかしこの場合制御チャネルの安定性は保たれるもの
の、規制がかかっている間、他のユーザは全くアクセス
が不可能であるので、ＶＩＰ移動機の全体に占める割合
を考慮するとチャネル効率の点からあまり得策であると
はいえないと言う問題点があった。本発明は高トラヒツ
ク時、特に通常トラヒックの状態からＶＩＰ規制に至る
までの領域においてトラヒックを制御し、常にチャネル
の効率を維持して制御チャネルを安定させることのでき
る制御手段を提供することを目的としている。[Problem to be solved by the invention] As mentioned above, in the conventional system, when the number of calls temporarily increases and the control channel becomes unstable, it is difficult to create a system that allows access only to specific users. We are hiring. However, in this case, although the stability of the control channel is maintained, other users cannot access it at all while the restriction is in effect, so from the point of view of channel efficiency, considering the proportion of VIP mobile terminals in total, There was a problem that it was not a very good idea. SUMMARY OF THE INVENTION An object of the present invention is to provide a control means that can control traffic at times of high traffic, especially in areas ranging from normal traffic to VIP regulation, and can always maintain channel efficiency and stabilize the control channel. It is said that
［課題を解決するための手段］
前述の目的を達成するために本発明ではトラヒックの変
化に応じて再送信号の再送間隔を変化させることを最大
の特徴としている。具体的には、例えば、チャネルのト
ラヒック量に対しである閾値を設定しておき、これを越
えた場合には再送間隔をある値だけ大きくしていくとい
う操作を繰り返す方法が考えられる。これらは下り応答
チャネルにおいて空線信号、ＶＩＰ空線信号および禁止
信号の他に、再送間隔を指定する数種類の再送規制信号
を報知することによって実現される。[Means for Solving the Problems] In order to achieve the above-mentioned object, the main feature of the present invention is that the retransmission interval of the retransmission signal is changed in accordance with changes in traffic. Specifically, for example, a method can be considered in which a certain threshold value is set for the amount of traffic on a channel, and when this threshold is exceeded, the retransmission interval is increased by a certain value, and this operation is repeated. These are realized by broadcasting several types of retransmission restriction signals specifying retransmission intervals in addition to the idle signal, VIP idle signal, and prohibition signal on the downlink response channel.
［実施例］
本発明の一実施例の再送規制型空線制御方法のタイミン
グ・チャートを第１図に示す。同図において、１−１は
下り応答チャネル、１−２は上り制御チャネル、１−３
は空線信号、１４は禁止信号、ｌ−５はアクセス信号、
１−６はアクセス信号同士の衝突、１−７は再送間隔、
１−８は再送規制信号〈間隔中）、１−９は規制時再送
間隔（間隔中）、１−１０は再送規制信号（間隔大）、
１−１１は規制時再送間隔（間隔大〉を表わしている。[Embodiment] FIG. 1 shows a timing chart of a retransmission restriction type idle line control method according to an embodiment of the present invention. In the figure, 1-1 is a downlink response channel, 1-2 is an uplink control channel, and 1-3 is a downlink response channel.
is an empty line signal, 14 is a prohibition signal, l-5 is an access signal,
1-6 is collision between access signals, 1-7 is retransmission interval,
1-8 is a retransmission regulation signal (medium interval), 1-9 is a retransmission interval at regulation (medium interval), 1-10 is a retransmission regulation signal (large interval),
1-11 represents the restricted retransmission interval (large interval).
同図に示すように、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（Ｖ
Ｉ Ｐ空線信号）、もしくは再送規制信号が報知され
ていることを確かめた後、上り制御チャネル１−２を介
してアクセス信号を送信する。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等によってアクセスに
失敗した場合、空線信号が報知されている場合は予め設
定された時間をおいて信号の再送を行なうが、再送規制
信号が報知されている場合はその種類に応じて再送間隔
を変えて、信号の再送を行なう。As shown in the figure, a mobile device attempting to access a base station first receives an idle signal (V
After confirming that an IP idle line signal) or a retransmission restriction signal has been broadcast, the access signal is transmitted via the uplink control channel 1-2. Here, if access fails due to a collision with an access signal transmitted by another mobile device, the signal will be retransmitted after a preset time if an idle signal is broadcast, but the signal will be retransmitted after a preset time. If a regulation signal is being broadcast, the signal is retransmitted by changing the retransmission interval depending on the type of regulation signal.
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を考え、Ａ−ｃｈ下リすおいて
空疎信号、ＶＴＰ空線信号及び数種類の再送規制信号を
報知する。再送規制信号の種類は基地局によって選択さ
れるが、その方法としては、例えば、各基地局において
、周期的にある一定のトラヒック観測時間を設け、その
中でＡ−ｃｈの発呼信号を受信（Ａ−ｃｈ上り信号のキ
ヤ＋Ｊ ７レベルが一定値以上であること）していた（
あるいは禁止信号を送信していた）時間Ａと発呼信号と
して正確に復号できた信号の長さに相当する時間Ｂをパ
ラメータとしてトラヒック量の推定を行ない（すなわち
、Ｂ／Ａが小である程発呼信号の衝突が増加する）、そ
の値が予め定めた閾値を越えた場合には現在設定されて
いる再送間隔よりも長い再送間隔をしめず規制信号を報
知し、逆に推定されたトラヒック量が予め定めた閾値を
下回った場合は再送間隔を短くする信号を送出する。The channel configuration is the same as the conventional system: A-ch,
Considering the P-ch and V-ch, the A-ch is lowered and an idle signal, a VTP idle signal, and several types of retransmission restriction signals are broadcast. The type of retransmission restriction signal is selected by the base station, and the method for doing so is, for example, to periodically set a certain traffic observation time at each base station and receive the A-ch calling signal during that time. (The carrier + J7 level of the A-ch up signal is above a certain value)
Alternatively, the traffic amount is estimated using the time A corresponding to the length of the signal that was correctly decoded as the calling signal (in other words, the smaller B/A is, the more If the value exceeds a predetermined threshold, a restriction signal is broadcast without a retransmission interval longer than the currently set retransmission interval, and conversely, the estimated traffic If the amount falls below a predetermined threshold, a signal is sent to shorten the retransmission interval.
３−２は再送間隔が小なる場合のスルーブツト、３−３
は再送間隔が中位の場合のスルーブツト、３−４は再送
間隔が大なる場合のスルーブツト、３−５は規制限界を
示している。この図からアクティブユーザ数の増加に伴
い基地局が再送間隔を変化させることによってチャネル
のスルーブツト特性を変化させ、スルーブツトが減少す
るのを防ぐことができることが分る。3-2 is the throughput when the retransmission interval is small, 3-3
indicates the throughput when the retransmission interval is medium, 3-4 indicates the throughput when the retransmission interval is large, and 3-5 indicates the regulation limit. It can be seen from this figure that as the number of active users increases, the base station can change the retransmission interval to change the throughput characteristics of the channel and prevent the throughput from decreasing.
［発明の効果］
以上説明したように、本発明の再送規制型空線制御方法
によれば、ＶＩＰ規制をかける前の段階においてユーザ
数が増大した場合でも、トラヒックの変化量に応じて再
送信号の再送間隔を変化させることにより、トラヒック
を制御しているので、常に上り制御チャネルの効率を維
持してふくそうを防止し、チャネルの安定状態を維持す
ることができる。第３図は本発明による上り制御チャネ
ルのスループット改善効果を示すもので、３−１は無規
制時のスルーブツト、[Effects of the Invention] As explained above, according to the retransmission restriction type air line control method of the present invention, even if the number of users increases before VIP restriction is applied, the retransmission signal is controlled according to the amount of change in traffic. Since traffic is controlled by changing the retransmission interval, it is possible to always maintain the efficiency of the uplink control channel, prevent congestion, and maintain a stable state of the channel. Figure 3 shows the throughput improvement effect of the uplink control channel according to the present invention.
第１図は本発明の一実施例の再送規制型空線制御方式の
タイミング・チャート、第２図はＶＩＰ空線制御方式の
タイミング・チャート、第３図は本発明による上り制御
チャネルのスルーブツト改善効果を示す図である。
１−１・・・・・・下り応答チャネル、１−２・・・・
・・上り制御チャネル、１−３・・・・・・空線信号、
１−４・・・・・・禁止信号、１−５・・・・・・アク
セス信号、１−６・・・・・・アクセス信号同士の衝突
、１−７・・・・・・再送間隔、１−８・・・・・・再
送規制信号（間隔小）、１−９・・・・・・規制時再送
間隔（間隔小）、１−１０・・・・・・再送規制信号（
間隔大）、１−１１・・・・・・規制時再送間隔（間隔
大）、２−１・・・・・・下り応答チャネル、２−２・
・・・・・上りアクセスチャネル、２−３・・・・・・
空線信号、２−４・・・・・・アクセス信号（一般ユー
ザ）、２−５・・・・・・禁止信号、２−６・・・・・
・アクセス信号（ＶＩＰ）、２−７・・・・・・ＶＩＰ
空線信号、３−１・・・・・・スルーブツト（無規制時
＞、３−２・・・・・・スルーブツト（再送間隔小）、
３−３・・・・・・スルーブツト（再送間隔中）、３−
４・・・・・・スルーブツト（再送間隔大）、３−５・
・・・・・規制限界FIG. 1 is a timing chart of a retransmission restriction type idle line control system according to an embodiment of the present invention, FIG. 2 is a timing chart of a VIP idle line control system, and FIG. 3 is a throughput improvement of an uplink control channel according to the present invention. It is a figure showing an effect. 1-1... Downlink response channel, 1-2...
...Uplink control channel, 1-3...Blank signal,
1-4...Prohibition signal, 1-5...Access signal, 1-6...Collision between access signals, 1-7...Retransmission interval , 1-8...Retransmission regulation signal (small interval), 1-9...Retransmission interval during regulation (small interval), 1-10...Retransmission regulation signal (
(Large interval), 1-11... Retransmission interval during regulation (Large interval), 2-1... Downlink response channel, 2-2.
...Uplink access channel, 2-3...
Blank line signal, 2-4...Access signal (general user), 2-5...Prohibition signal, 2-6...
・Access signal (VIP), 2-7...VIP
Blank line signal, 3-1... Thrubutt (when unregulated >, 3-2... Thrubutt (small retransmission interval),
3-3...Throughput (during retransmission interval), 3-
4...Throughput (large retransmission interval), 3-5.
...Regulatory limits
Claims (1)
なる移動通信であって、移動機から基地局への上り制御
チャネルおよび基地局から移動機へ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制御チャネルを用いてランダム
アクセスを行ない、かつ、呼の発生が予め定めた設定値
を越えて変化した場合に、下り応答チャネルにより再送
規制信号を報知する機能を有するシステムにおいて、ト
ラヒックの変動量に応じて信号の再送間隔を変化させる
ことを特徴とする再送規制型空線制御方法。Mobile communication consisting of a radio base station and a plurality of mobile devices controlled by the base station, which has a control channel consisting of an uplink control channel from the mobile device to the base station and a downlink response channel from the base station to the mobile device. Each mobile device performs random access to the base station as necessary using the uplink control channel, and when the number of call occurrences changes beyond a predetermined setting value, access is made to the base station using the downlink response channel. 1. A retransmission restriction type air line control method in a system having a function of notifying a retransmission restriction signal, the method comprising changing a signal retransmission interval in accordance with the amount of traffic fluctuation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4919590A JP2899042B2 (en) | 1990-03-02 | 1990-03-02 | Retransmission control type airline control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4919590A JP2899042B2 (en) | 1990-03-02 | 1990-03-02 | Retransmission control type airline control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03253126A true JPH03253126A (en) | 1991-11-12 |
| JP2899042B2 JP2899042B2 (en) | 1999-06-02 |
Family
ID=12824230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4919590A Expired - Fee Related JP2899042B2 (en) | 1990-03-02 | 1990-03-02 | Retransmission control type airline control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2899042B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05183480A (en) * | 1992-01-07 | 1993-07-23 | Fujitsu Ten Ltd | Traffic controller for avm system in arbitrary outgoing system |
| JP2007142880A (en) * | 2005-11-18 | 2007-06-07 | Kyocera Corp | Data retransmission control method, system and data retransmission control device |
| US7778214B2 (en) | 2006-09-29 | 2010-08-17 | Fujitsu Limited | Relay apparatus, relay method, and relay program |
-
1990
- 1990-03-02 JP JP4919590A patent/JP2899042B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05183480A (en) * | 1992-01-07 | 1993-07-23 | Fujitsu Ten Ltd | Traffic controller for avm system in arbitrary outgoing system |
| JP2007142880A (en) * | 2005-11-18 | 2007-06-07 | Kyocera Corp | Data retransmission control method, system and data retransmission control device |
| JP4684084B2 (en) * | 2005-11-18 | 2011-05-18 | 京セラ株式会社 | Data retransmission control method, system, and data retransmission control device |
| US7778214B2 (en) | 2006-09-29 | 2010-08-17 | Fujitsu Limited | Relay apparatus, relay method, and relay program |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2899042B2 (en) | 1999-06-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |