JPS63226130A - Mobile equipment control system - Google Patents
Mobile equipment control systemInfo
- Publication number
- JPS63226130A JPS63226130A JP62058878A JP5887887A JPS63226130A JP S63226130 A JPS63226130 A JP S63226130A JP 62058878 A JP62058878 A JP 62058878A JP 5887887 A JP5887887 A JP 5887887A JP S63226130 A JPS63226130 A JP S63226130A
- Authority
- JP
- Japan
- Prior art keywords
- control channel
- reception level
- mobile device
- control
- channels
- 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
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims description 15
- 238000010295 mobile communication Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000010187 selection method Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、無線基地局との開に複数の侃制御チャネルを
有する移動機の制御チャネルの選択方式に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a control channel selection method for a mobile device that has a plurality of private control channels connected to a radio base station.
自動車電話等の移動通信方式では、第１図に示したゾー
ン構成例に示すようにサービスエリア５は複数の無線ゾ
ーン（この場合は無線ゾーン１１〜１５の場合を示して
いる）から成り、各無線基地局２．〜２．と移動＠３あ
るいは４との闇に、呼び出し、応答などの接ａ制御を行
なう制御チャネルと通話用の通話チャネルが設定される
。In a mobile communication system such as a car phone, the service area 5 consists of a plurality of wireless zones (in this case, wireless zones 11 to 15 are shown), as shown in the zone configuration example shown in FIG. Wireless base station 2. ~2. A control channel for performing contact control such as calling and answering, and a communication channel for telephone calls are set in the darkness between 3 and 4.
第１図においては、各無線ゾーンの制御チャネルをＰｉ
、 Ｐ２ 、・・・・・・、Ｐ５として表示して
いる。In Figure 1, the control channel of each wireless zone is Pi
, P2, ..., P5.
移動機は電源投入時、予め決められた複数の制御チャネ
ル（Ｐｉ、Ｐ２．・・・・・・、Ｐ５ ）の中から受信
レベルが最大かつ規定値（Ｌ）以上で使用可能な制御チ
ャネルを選択し、以後そのチャネルを受信し続け、自移
動機に対する呼び出し信号を待ち受ける。待ち受け中に
おいて、制御チャネルの受信レベルがある規定値以下に
なると、移動機はその待ち受け状態を出て、前述の制御
チャネル選択動作を行なう。When the mobile device is powered on, it selects a usable control channel with the highest reception level and a specified value (L) from among multiple predetermined control channels (Pi, P2..., P5). The mobile device selects the channel and continues to receive the channel from then on, waiting for a paging signal for its own mobile device. During standby, when the reception level of the control channel falls below a certain predetermined value, the mobile station exits the standby state and performs the control channel selection operation described above.
制御チャネル選択動作において、規定値以上の受信レベ
ルを有する制御チャネルが存在しない場合は、制御チャ
ネルの選択動作を繰り返し行なう。この動作中、移動機
は発信・着信はできない。In the control channel selection operation, if there is no control channel having a reception level equal to or higher than the specified value, the control channel selection operation is repeatedly performed. During this operation, the mobile device cannot make or receive calls.
第２図は、この従来の移動機の制御チャネル選択方式を
示す流れ図である。FIG. 2 is a flowchart showing this conventional control channel selection method for mobile equipment.
また第３図は第２図に基づいて移動機が動作した場合の
制御チャネルの時間推移を示したものである。Further, FIG. 3 shows the time transition of the control channel when the mobile device operates based on FIG. 2.
すなわち、移動機は電源投入時あるいは待ち受け時にお
いて、制御チャネルの受信レベルが劣化すると、第２図
に示す流れ図のような制御を開始する。That is, when the mobile device is turned on or in standby mode, if the reception level of the control channel deteriorates, it starts control as shown in the flow chart shown in FIG.
まず、受信すべき制御チャネルＰｉ を決定するため、
初期設定としてｉを“０ ”クリアした後、 ｉに“１
”を加算してＰ、チャネルを°−３＝
設定し、その受信レベルの検出を行なって、該受信レベ
ル１１ を記憶する。First, in order to determine the control channel Pi to be received,
After clearing i to “0” as initial setting, set i to “1”.
'' is added to P, the channel is set to °-3=, the reception level is detected, and the reception level 11 is stored.
次に、さらにｉ（現在値は１ ″）に、更に“１ ″を
加えることによりＰ２チャネルを設定し、その受信レベ
ルの検出を行なって該受信レベル１２ を記憶する。Next, the P2 channel is set by further adding "1" to i (the current value is 1"), the reception level is detected, and the reception level 12 is stored.
以下このような処理を反復して行なうことによって、第
３図に示すように例えばＰｌからＰ５までの総ての制御
チャネルの受信レベルの検出が終わったら、その中に規
定値りを満たしているものがあるか否かを調べ、規定値
りを満たしているものが複数あれば更にその中の最大受
信レベルのものを選んでこの制御チャネルにより待ち受
け状態に入る。By repeating this process, as shown in Figure 3, once the reception levels of all control channels from P1 to P5 have been detected, it is determined that some of them satisfy the specified value. If there are multiple devices that meet the specified value, the device selects the one with the highest reception level and enters a standby state using this control channel.
このとき、もし、受信レベルが規定値りを満たすものが
なければ再び、ｉを初期状態にして前記動作を繰り返す
ことにより使用可能な制御チャネルを探す。At this time, if there is no reception level that satisfies the specified value, i is set to the initial state again and the above operation is repeated to search for a usable control channel.
このような制御チャネルが捕捉できない状況は、移動機
が第１図に４で示すようなサービス４−ｌ
エリア外にいるとき、あるいはサービスエリア内にいる
がビル影や建物内のような電波がとどきづらい場所にい
るとき等に発生する。Situations where the control channel cannot be acquired are when the mobile device is outside the service 4-l area as shown in 4 in Figure 1, or when the mobile device is within the service area but the radio waves are blocked by the shadow of a building or inside a building. Occurs when you are in a place that is difficult to reach.
従来、移動機は自動車に搭載されてきたが、移動機の小
形化とともに自動車から離れて、携帯機として持ち歩く
こともできるようになった。Traditionally, mobile devices have been installed in cars, but as mobile devices have become smaller, they have become able to be removed from the car and carried around as portable devices.
携帯機では、自動＊ｉ載時に比べ、使用者がとこえでも
行けるのでビル影や建物内のような電波がとどきづらい
場所に移動することによって待ち受け状態から制御チャ
ネルの選択動作に移行することが多く発生する。一方、
携帯機は小容量の電池で動作するのでバッテリーセービ
ングを行なうことが重要となる。With mobile devices, compared to when automatic*i is installed, the user can go beyond the door, so by moving to a place where radio waves are difficult to reach, such as behind a building or inside a building, it is possible to shift from standby mode to control channel selection operation. Occurs often. on the other hand,
Since portable devices operate on small-capacity batteries, it is important to save the battery.
待ち受け時におけるバッテリーセービング技術としては
、移動機無線部の電源をオン／オフする間欠受信がある
が、従来の方式では上述したように制御チャネルの選択
動作中は常時電源をオンとしておく必要があるため、こ
の間は移動機の電源のオン／オフによる間欠受信動作な
行なうことが出来ないという欠点が有った。As a battery saving technique during standby, there is intermittent reception that turns the mobile device's radio section on and off, but in the conventional method, as mentioned above, it is necessary to keep the power on at all times during the control channel selection operation. Therefore, during this period, there was a drawback that intermittent reception operations could not be performed by turning on/off the power of the mobile device.
本発明は、このような従来の問題点に鑑み、移動機の制
御チャネルの選択動作に対しても間欠受信によるバッテ
リーセービング動作を行なわしめることの可能な制御方
式を提供することを目的としている。SUMMARY OF THE INVENTION In view of these conventional problems, it is an object of the present invention to provide a control method that allows a battery saving operation by intermittent reception to be performed even in the control channel selection operation of a mobile device.
本発明によれば、上述の目的は、前記特許請求の範囲に
記載した手段により達成される。According to the invention, the above-mentioned object is achieved by the means specified in the claims.
すなわち、本発明は移動機の制御チャネルの選択動作に
ついて、常時全制御チャネルの受信レベル検出動作を繰
り返して行なうのではなく、一旦全制御チャネルの受信
レベル検出動作を行なった後、１制御チヤネルにより間
欠的に受信レベルの検出を行なうもので、例えば、全チ
ャ゛ネルの受信レベル検出動作を一回行なったら、その
後に以前の待ち受け時に用いた制御チャネルのみについ
て一定周期毎に一定回数だけ受信レベル検出を行ない、
これが終了したら再び全チャネルの受信レベル検出を行
なう方式あるいは、全チャネルの受信レベル検出動作を
一回行なったら、その後全チャネルの受信レベル検出動
作で最も高い受信レベルが検出されたチャネルのみにつ
いて一定盾期毎に一定回数だけ受信レベル検出を行ない
、これが終了したら再び全チャネルの受信レベル検出を
行なう方式を採るものである。That is, in the present invention, regarding the control channel selection operation of the mobile device, instead of constantly repeatedly performing the reception level detection operation for all control channels, the reception level detection operation for all control channels is performed once, and then the reception level detection operation is performed for one control channel. It detects the reception level intermittently. For example, after performing the reception level detection operation for all channels once, the reception level is then detected a certain number of times at a certain period for only the control channel used in the previous standby. perform the detection,
Once this is completed, the reception level detection for all channels is performed again, or after the reception level detection operation for all channels is performed once, a fixed shield is applied only to the channel for which the highest reception level was detected in the reception level detection operation for all channels. This method employs a method in which reception level detection is performed a fixed number of times in each period, and upon completion of this detection, reception level detection is performed again for all channels.
第４図は本発明の一実施例の移動機の動作を示す流れ図
である。第５図は第４図に基づいて移動機が動作した場
合の制御チャネルの時間推移を示したものである。FIG. 4 is a flowchart showing the operation of a mobile device according to an embodiment of the present invention. FIG. 5 shows the time course of the control channel when the mobile station operates based on FIG. 4.
第４図に示すように移動機固有の制御チャネル（ｐｉ、
・・・・・・ 、Ｐ５）のレベル検出を順次行ない
、全チャネルのレベル検出が終了した時点で受信レベル
の最大値が規定値（Ｌ）以下のとき、以前の待ち受け時
の制御チャネル（Ｐｗ）について一定周期毎に一定回数
（Ｎ）だけ受信レベル検出を行なう。以後受信レベル条
件を満たすまでこの動作を繰り返す。As shown in FIG. 4, mobile device-specific control channels (pi,
. . . , P5) are sequentially detected, and when the maximum value of the reception level is less than the specified value (L) when level detection of all channels is completed, the previous standby control channel (Pw ), the reception level is detected a fixed number of times (N) every fixed period. Thereafter, this operation is repeated until the reception level condition is satisfied.
°−７＝
このような制御方式とすることによって、遅延Ｔ秒の間
は移動機無線部の電源をオフすることができるから、移
動機の省電力化が可能となる。°-7= By adopting such a control method, the power of the mobile device radio section can be turned off during the delay T seconds, so that the power consumption of the mobile device can be reduced.
１チヤネル当たりの受信レベル検出時間をＴｐ、制御チ
ャネル数をＭとすると、第５図において無線部電源をオ
フできる時間率βはで与えられる。Assuming that the reception level detection time per channel is Tp and the number of control channels is M, the time rate β in which the radio unit power can be turned off is given by:
一例として、’ｒｐ＝ｏ、ｓ秒、Ｍ＝５、Ｔ＝２秒、Ｎ
＝１０とすると、βは約０．７３となる。As an example, 'rp=o, s seconds, M=5, T=2 seconds, N
=10, β is approximately 0.73.
また全チャネルの制御チャネル選択から次の選択までの
間、以前の待ち受け時の制御チャネルについてのみ一定
周期毎に一定回数だけ受信レベル検出をおこなうのは、
携帯機においてはサービスエリア内の建物等に入ること
によって、制御チャネルの選択動作に移行することが多
く・−８−
なることを考慮し、前回の待ち受け時の制御チャネルが
再び選択される可能性が強いので、できる限り速く受信
レベルが良好な制御チャネルを捕捉しようとするもので
ある。In addition, from the time when the control channel for all channels is selected until the next selection, the reception level is detected a certain number of times at a certain period only for the control channel during the previous standby mode.
In consideration of the fact that mobile devices often switch to a control channel selection operation when entering a building, etc. within a service area, the control channel used in the previous standby mode may be selected again. is strong, so an attempt is made to acquire a control channel with a good reception level as quickly as possible.
第６図は本発明の他の実施例の移動機の動作を示す流れ
図である。FIG. 6 is a flowchart showing the operation of a mobile device according to another embodiment of the present invention.
第７図は第６図に基づいて移動機が動作した場合の制御
チャネルの時間推移を示したものである。FIG. 7 shows the time course of the control channel when the mobile device operates based on FIG. 6.
第４図との違いは、一定周期毎に一定回数（Ｎ）だけ受
信レベル検出を行なうチャネルが、その直前に行なった
全チャネルの受信レベル検出動作の中で、受信レベルが
最大の制御チャネル（Ｐａ ）を用いる点である。 そ
のため、他ゾーンとの境界上で制御チャネルの選択動作
に移行した場合等にも、迅速に受信レベルが良好な制御
チャネルを捕捉することができる。The difference from Fig. 4 is that the channel for which reception level detection is performed a certain number of times (N) every certain period is the control channel with the highest reception level among the reception level detection operations of all channels performed immediately before. The point is to use Pa ). Therefore, even when shifting to a control channel selection operation on a boundary with another zone, it is possible to quickly acquire a control channel with a good reception level.
バッテリーセービング効果は、第４図に基づいて説明し
た前記実施例の場合と同様である。The battery saving effect is the same as in the case of the embodiment described based on FIG. 4.
以上説明したように、本発明によれば、制御チャネルの
選択動作においても、バッテリーセービング動作を行な
うことが可能となるので、携帯機のように小容量の電池
で動作するため、低消費電力化のＩＩ！！［求が厳しい
受信機への適用に特に有効である。As explained above, according to the present invention, it is possible to perform a battery saving operation even in the control channel selection operation, so the power consumption is reduced because the device operates with a small capacity battery like a portable device. II! ! [This is particularly effective for application to receivers with strict requirements.
第１図は移動通信方式のゾーン構成の例を示す図、第２
図は従来の移動機の制御チャネル選択方式を示す流れ図
、第３図は第２図に基づく制御チャネルの時間推移を示
す図、第４図は本発明の一実施例の移動機の動作を示す
流れ図、第５図は第４図に基づく制御チャネルの時間推
移を示す図、第６図は本発明の他の実施例の移動機の動
作を示す流れ図、第７図は第６図に基づく制御チャネル
の時間推移を示す図である。
１１〜１５・・・・・・無線ゾーン、 ２．〜２５
・・・・・・無線基地局、 ３．４ ・・・・・・移
動機、５・・・・・・サービスエリア
代理人 弁理士 本 間 崇第 ３ 回
艷源投入文吐
チャネルで＃良へ
第 ２ 画
半 ４ 目Figure 1 is a diagram showing an example of the zone configuration of a mobile communication system.
FIG. 3 is a flowchart showing a conventional control channel selection method for a mobile device, FIG. 3 is a diagram showing a time transition of a control channel based on FIG. 2, and FIG. 4 is a diagram showing the operation of a mobile device according to an embodiment of the present invention. Flowchart, FIG. 5 is a diagram showing the time transition of the control channel based on FIG. 4, FIG. 6 is a flowchart showing the operation of a mobile device according to another embodiment of the present invention, and FIG. 7 is a diagram showing the control based on FIG. 6. FIG. 3 is a diagram showing a channel over time. 11-15...Wireless zone, 2. ~25
・・・・・・Radio base station, 3.4 ・・・・・・Mobile device, 5・・・Service area agent Patent attorney Takashi Honma #Good on the 3rd 艷 Source submission channel to 2nd stroke and a half 4th eye
Claims (3)
と通話チャネルが設定されていて、移動機が予め決めら
れた複数の制御チャネルの受信レベルを検出することに
より使用可能な制御チャネルを選択し、該制御チャネル
を用いて発着信の制御が行なわれる移動通信方式におい
て、移動機が制御チャネルを選択する手段として、上記
複数の制御チャネルについて順次受信レベルを検出する
第１の手順と、第１の手順実施後、前記複数の制御チャ
ネルのうちのいずれか一つの制御チャネルについて受信
レベルの検出を一定時間ごとに一定回数行なう第２の手
順とを設定し、第１の手順において検出した受信レベル
のいずれもが予め定めた規定値を満たさない場合には第
２の手順を行ない、第２の手順において検出した受信レ
ベルのいずれもが予め定めた規定値を満たさない場合に
は第１の手順を行なうという動作を継続して実施し、そ
の間における第１の手順あるいは第２の手順において、
受信レベルが予め定めた規定値を満たす制御チャネルが
現出したとき、該制御チャネルによって待ち受け状態に
入ることを特徴とする移動機制御方式。(1) Multiple control channels and communication channels are set between a wireless base station and a mobile station, and the control channel can be used by the mobile device by detecting the reception level of the multiple predetermined control channels. In a mobile communication system in which the mobile device selects a control channel and controls incoming and outgoing calls using the control channel, as a means for the mobile device to select a control channel, the first step is to sequentially detect reception levels for the plurality of control channels. , after implementing the first procedure, a second procedure is set in which the detection of the reception level of any one of the plurality of control channels is performed a fixed number of times at fixed time intervals, and the detection is performed in the first procedure. If none of the reception levels detected in the second procedure satisfy the predetermined value, the second procedure is performed, and if none of the reception levels detected in the second procedure meet the predetermined value, the Continuously carry out the operation of performing step 1, and in the first step or second step during that time,
A mobile device control method characterized in that when a control channel whose reception level satisfies a predetermined value appears, the mobile device enters a standby state using the control channel.
御チャネルとして、それ以前に待ち受け状態であった制
御チャネルを用いる特許請求の範囲第（１）項記載の移
動機制御方式。(2) The mobile device control method according to claim (1), in which a control channel that was previously in a standby state is used as the control channel for detecting the reception level a certain number of times at a certain time interval.
御チャネルとして、複数の制御チャネル中の受信レベル
が最も高い制御チャネルを用いる特許請求の範囲第（１
）項記載の移動機制御方式。(3) Claim No. 1 uses a control channel with the highest reception level among a plurality of control channels as the control channel for detecting the reception level a certain number of times at a certain time interval.
Mobile device control method described in ).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62058878A JP2504453B2 (en) | 1987-03-16 | 1987-03-16 | Mobile unit control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62058878A JP2504453B2 (en) | 1987-03-16 | 1987-03-16 | Mobile unit control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63226130A true JPS63226130A (en) | 1988-09-20 |
| JP2504453B2 JP2504453B2 (en) | 1996-06-05 |
Family
ID=13097015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62058878A Expired - Lifetime JP2504453B2 (en) | 1987-03-16 | 1987-03-16 | Mobile unit control system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2504453B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0322719A (en) * | 1989-06-20 | 1991-01-31 | Toshiba Corp | Data communication equipment for mobile radio |
-
1987
- 1987-03-16 JP JP62058878A patent/JP2504453B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0322719A (en) * | 1989-06-20 | 1991-01-31 | Toshiba Corp | Data communication equipment for mobile radio |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2504453B2 (en) | 1996-06-05 |
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