JP3015379B2 - Mobile radio location registration method - Google Patents
Mobile radio location registration methodInfo
- Publication number
- JP3015379B2 JP3015379B2 JP63246278A JP24627888A JP3015379B2 JP 3015379 B2 JP3015379 B2 JP 3015379B2 JP 63246278 A JP63246278 A JP 63246278A JP 24627888 A JP24627888 A JP 24627888A JP 3015379 B2 JP3015379 B2 JP 3015379B2
- Authority
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- Japan
- Prior art keywords
- wireless device
- fixed wireless
- fixed
- notification signal
- mobile
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 11
- 238000004891 communication Methods 0.000 claims description 10
- 238000010295 mobile communication Methods 0.000 claims description 6
- 208000033748 Device issues Diseases 0.000 claims 1
- 230000008054 signal transmission Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 15
- 238000012544 monitoring process Methods 0.000 description 6
- 230000002452 interceptive effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Description
【発明の詳細な説明】 〔発明の目的〕 （産業上の利用分野） 本発明は、複数の無線ゾーン内で移動する複数の移動
無線機を有する移動通信システムの位置登録方式に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a location registration method for a mobile communication system having a plurality of mobile radios moving in a plurality of radio zones.
（従来の技術） 従来において、無線ゾーン（またはサービスエリア）
の一部が重複するように複数の固定無線機を配置し、各
無線ゾーン内で移動する移動無線機と有線電話回線との
間の通信を行うようにした移動通信システムがある。(Prior art) Conventionally, a wireless zone (or service area)
There is a mobile communication system in which a plurality of fixed wireless devices are arranged so as to partially overlap each other, and communication is performed between a mobile wireless device moving in each wireless zone and a wired telephone line.
第２図はこの種の移動通信システムの従来構成を示す
システムブロック図である。第２図において、3a〜3eは
移動無線機、41〜43は固定無線機、51〜53は無線ゾー
ン、6a〜6eは有線電話回路、７は回線制御装置である。
ここで、3aは6aと、3bは6bと、3cは6cと、3dは6dと、3e
は6eとそれぞれ対応している。また、51〜53は41〜43の
固定無線機がそれぞれカバーする無線ゾーンである。FIG. 2 is a system block diagram showing a conventional configuration of this type of mobile communication system. In FIG. 2, reference numerals 3a to 3e denote mobile radio devices, 41 to 43 fixed radio devices, 51 to 53 radio zones, 6a to 6e wired telephone circuits, and 7 a line control device.
Here, 3a is 6a, 3b is 6b, 3c is 6c, 3d is 6d, 3e
Corresponds to 6e respectively. Reference numerals 51 to 53 denote wireless zones covered by the fixed wireless devices 41 to 43, respectively.
まず、回線接続動作について説明する。有線電話回線
6aに着呼があると、回線制御装置７は回線6aと対応する
移動無線機3aが存在する無線ゾーン51の固定無線機41を
移動し、該固定無線機41から着呼信号を送出させる。移
動無線機3aはその着呼信号を受信するとサウンダを鳴ら
し、利用者に知らせる。利用者がオフフックによって応
答すると、移動無線機3aは固定無線機41を介して回線制
御装置７へ応答信号を返す。回線制御装置７はこれを検
出して、有線回線6aを固定無線機41へと接続し、回線6a
と移動無線機3aとの間を通話可能にする。First, the line connection operation will be described. Wired telephone line
When there is an incoming call to 6a, the line controller 7 moves the fixed wireless device 41 in the wireless zone 51 where the mobile wireless device 3a corresponding to the line 6a is present, and causes the fixed wireless device 41 to transmit an incoming call signal. Upon receiving the incoming call signal, the mobile radio 3a sounds a sounder to notify the user. When the user responds off-hook, the mobile wireless device 3a returns a response signal to the line controller 7 via the fixed wireless device 41. The line controller 7 detects this, connects the wired line 6a to the fixed wireless device 41, and
And the mobile radio 3a.
一方、利用者が移動無線機3aから固定無線機41を介し
て回線制御装置７へと発呼信号を送出すると、回線制御
装置７は有線電話回線6aと固定無線機41とを接続し、有
線電話網への発呼を可能とする。On the other hand, when the user sends a call signal from the mobile wireless device 3a to the line control device 7 via the fixed wireless device 41, the line control device 7 connects the wired telephone line 6a and the fixed wireless device 41, and Allows outgoing calls to the telephone network.
ところで、前述の有線電話回線6aへの着呼時、回線制
御装置７が固定無線機41を介して移動無線機3aへと着呼
信号を送出するためには、回線制御装置７は移動無線機
3aの所在位置が無線ゾーン51であることを予め把握して
いる必要がある。By the way, in order for the line controller 7 to send an incoming signal to the mobile radio 3a via the fixed radio 41 when receiving a call to the above-mentioned wired telephone line 6a, the line controller 7 must
It is necessary to know in advance that the location of 3a is the wireless zone 51.
また同様に、移動無線機3aから固定無線機41を介して
回線制御装置７へと発呼信号を送出するためには、移動
無線機3aは自分の所定位置が無線ゾーン51であることを
予め把握している必要がある。Similarly, in order to transmit a call signal from the mobile wireless device 3a to the line control device 7 via the fixed wireless device 41, the mobile wireless device 3a needs to determine in advance that its predetermined position is the wireless zone 51. You need to know.
そこで、従来においては回線制御装置７は次のように
して各移動無線機3a〜3eの所在位置を検出するようにし
ている。すなわち、回線制御装置７は、固定無線機41〜
43に対して時間をずらしながら位置報知信号の送出指示
信号を与え、各固定無線機41〜43から位置報知信号と各
固定無線機個有の識別信号を含む位置報知信号をその送
信タイミングが重複しないように送出させる。すると、
この位置報知信号は各固定無線機の無線ゾーン内に位置
している移動無線機についてのみ受信される。Therefore, conventionally, the line control device 7 detects the location of each of the mobile wireless devices 3a to 3e as follows. That is, the line control device 7 includes the fixed wireless devices 41 to
A transmission instruction signal of the position notification signal is given to the mobile station 43 while shifting the time, and the transmission timing of the position notification signal and the position notification signal including the identification signal unique to each fixed wireless device from each of the fixed wireless devices 41 to 43 overlap. Not sent out. Then
This position notification signal is received only for the mobile radio located in the radio zone of each fixed radio.
例えば、移動無線機3aが破線で示すような位置に存在
していた場合、固定無線機43からの位置報知信号のみを
受信するため、移動無線機3aは自分が固定無線機43の無
線ゾーン53内に存在しているものとして認識する。そこ
で、移動無線機3aは固定無線機43の識別信号を含む位置
登録信号を送信し、当該固定無線機43を介して回線制御
装置７に自己が存在する無線ゾーンの位置登録を行う。
この位置登録は固定無線機の識別番号の形で登録され
る。For example, if the mobile wireless device 3a is located at a position indicated by a broken line, the mobile wireless device 3a receives only the position notification signal from the fixed wireless device 43. Recognize that it exists within. Therefore, the mobile wireless device 3a transmits a position registration signal including the identification signal of the fixed wireless device 43, and registers the position of the wireless zone in which the mobile wireless device 3a exists in the line control device 7 via the fixed wireless device 43.
This location registration is registered in the form of an identification number of the fixed wireless device.
一方、移動無線機3aが矢印で示すように移動した場
合、固定無線機41および42からの位置報知信号を受信す
るが、固定無線機43からの位置報知信号は受信不能にな
るため、移動無線機3aは自分が固定無線機41および42の
無線ゾーン51,52内に存在しているものとして認識し、
前述の場合と同様にして回線制御装置７に対する位置登
録を行う。On the other hand, when the mobile wireless device 3a moves as indicated by the arrow, the mobile station receives the position information signals from the fixed wireless devices 41 and 42, but cannot receive the position information signal from the fixed wireless device 43. The machine 3a recognizes that it is present in the wireless zones 51 and 52 of the fixed wireless devices 41 and 42,
The location registration for the line controller 7 is performed in the same manner as described above.
第３図は移動無線機の位置登録処理を示すフローチャ
ートであり、まず位置報知のための報知監視タイマをセ
ットした後、固定無線機からの位置報知信号の受信待ち
とする（S10,S11）。そこで、例えば移動無線機3aが無
線ゾーン53に存在している状態で固定無線機43からの位
置報知信号を受信したならば、この位置報知信号は既に
登録済みの固定無線機43からのものであるか、または他
の固定無線機43からのものであるかを調べ（S12）、そ
の判別結果に応じてその時の受信レベルを記録した後、
再度位置報知信号の受信待ちに戻る（S13,S14）。その
後、報知監視タイマがタイムアウトになったならば、タ
イムアウト前に登録済みの固定無線機43からの位置報知
信号を受信したのか、または他の固定無線機からの位置
報知信号を受信したのかを調べ、登録済みの固定無線機
からのものであった時には報知監視タイマをセットして
再度位置報知信号の受信待ちに戻る（S15）。しかし、
他の固定無線機からの位置報知信号のみの受信であった
時には、新たな無線ゾーンに移動したことになるため、
位置登録の更新を行う（S16,S17）。以上のようにし
て、回線制御装置７は各移動無線機3a〜3eがいずれの無
線ゾーンに存在しているかを認識し、また各移動無線機
3a〜3eは自分がいずれの無線ゾーンに存在しているかを
認識することができる。FIG. 3 is a flow chart showing the location registration processing of the mobile radio device. First, a notification monitoring timer for position notification is set, and then a reception of a position notification signal from the fixed radio device is waited (S10, S11). Therefore, for example, if the mobile station 3a receives a position information signal from the fixed station 43 in a state where the mobile station 3 is in the wireless zone 53, the position information signal is from the fixed station 43 already registered. It is checked whether it is or from another fixed wireless device 43 (S12), and after recording the reception level at that time according to the determination result,
The process returns to waiting for the position notification signal again (S13, S14). Thereafter, when the notification monitoring timer times out, it is determined whether a position information signal from the registered fixed wireless device 43 has been received before the time out or a position information signal from another fixed wireless device has been received. If it is from a registered fixed wireless device, the notification monitoring timer is set and the process returns to waiting for the reception of the position notification signal (S15). But,
When only a position notification signal from another fixed wireless device is received, it means that it has moved to a new wireless zone,
The location registration is updated (S16, S17). As described above, the line controller 7 recognizes in which wireless zone each of the mobile radios 3a to 3e is located, and
3a to 3e can recognize in which wireless zone they are.
（発明が解決しようとする課題） ところが、第３図で説明した位置登録の更新条件で
は、既に登録済みの固定無線機からの位置報知信号を１
回でも受信すると、位置登録の更新は実施されない。こ
れは、所定レベル以上で登録済みの固定無線機から位置
報知信号を受信しても、登録固定無線機との通信可能エ
リアにいるため、不要な電波送出をへらすことも配慮し
て登録を更新しないという考えに基づくものである。(Problems to be Solved by the Invention) However, under the update condition of the position registration described in FIG. 3, the position notification signal from the already registered fixed wireless device is transmitted by one.
If it is received even once, the location registration is not updated. This is because even if a position notification signal is received from a registered fixed transceiver at a predetermined level or higher, the registration is updated because unnecessary radio wave transmission is suppressed because you are in the communicable area with the registered fixed transceiver. It is based on the idea of not doing it.
しかし、同一無線ゾーンに複数の固定無線機が配置さ
れる場合、送信波または受信波の相互変調によって所要
の通話品質が確保できなくなるという問題がある。すな
わち、トラヒックの多い無線ゾーンでは第４図に示すよ
うに、例えば無線ゾーン52の中に２つの固定無線42−１
と42−２とを配置し、回線制御装置７ではこれらの固定
無線機42−１と42−２とを同一無線ゾーンの固定無線機
として制御するようにしたものがある。However, when a plurality of fixed wireless devices are arranged in the same wireless zone, there is a problem that required communication quality cannot be ensured due to intermodulation of a transmission wave or a reception wave. That is, in a wireless zone with a lot of traffic, for example, as shown in FIG.
And 42-2, and the line controller 7 controls the fixed wireless devices 42-1 and 42-2 as fixed wireless devices in the same wireless zone.
ここで、移動無線機3aが破線の位置に存在している時
に無線ゾーン51の位置登録を行った後、矢印のように無
線ゾーン51と52が重複するエリアで、かつ固定無線機42
−１に近いエリアに移動したとしても移動無線機3aは固
定無線機42−１からの位置報知信号と同時に固定無線機
41の位置報知信号も受信可能であるため、位置登録の更
新は行なわない。すなわち、移動無線機3aは固定無線機
42−１の近傍に位置しているにもかかわらず、固定無線
機41の近傍となってしまう。この結果、図示のように固
定無線機41と移動無線機3a、固定無線機42−１と移動無
線機3b、さらに固定無線機42−２と移動無線機3cとがそ
れぞれ対応となって通信を開始した場合、移動無線機3a
は破線で示すような固定無線機42−１（または42−２）
の送信回路の非直線性に起因して発生する送信相互変調
波f1IMの妨害を受けやすくなる。Here, after the position registration of the wireless zone 51 is performed when the mobile wireless device 3a is located at the position indicated by the broken line, as shown by the arrow, in the area where the wireless zones 51 and 52 overlap,
Even if the mobile radio 3a moves to an area close to -1, the mobile radio 3a is
Since the position notification signal 41 can also be received, the position registration is not updated. That is, the mobile radio 3a is a fixed radio
Despite being located in the vicinity of 42-1, it will be in the vicinity of the fixed wireless device 41. As a result, as shown in the figure, the fixed wireless device 41 and the mobile wireless device 3a, the fixed wireless device 42-1 and the mobile wireless device 3b, and the fixed wireless device 42-2 and the mobile wireless device 3c correspond to each other to perform communication. If started, mobile radio 3a
Is a fixed wireless device 42-1 (or 42-2) as shown by a broken line
Of the transmission intermodulation wave f1IM generated due to the non-linearity of the transmission circuit.
使用する周波数はシステムとして保有している複数の
周波数の中から空きを確認して選択するが、各固定無線
機で使用している周波数f1,f2,f3の間に次の関係（３次
の相互変調積）が成立するとき、f1と同一周波数の妨害
電波f1IMが発生する。The frequency to be used is selected from among a plurality of frequencies held by the system after confirming the availability, and the following relationship (third order between frequencies f1, f2, and f3 used by each fixed radio) is used. When the intermodulation product is established, a jamming wave f1IM having the same frequency as f1 is generated.
f2＝f1＋Δｆ（またはf1＋２Δｆ） f3＝f1＋２Δｆ（またはf1＋Δｆ） f1IM＝2f2−f3（または2f3−f2） …（１） 妨害電波f1IMは、一般に本来の送信波、例えば固定無
線機42−１で生じたものとすると、固定無線機42−１が
使用している周波数f2の送信波に比べて相当小さなレベ
ルである。f2 = f1 + Δf (or f1 + 2Δf) f3 = f1 + 2Δf (or f1 + Δf) f1IM = 2f2-f3 (or 2f3-f2) (1) Interference radio wave f1IM is generally generated by an original transmission wave, for example, fixed radio 42-1. In this case, the level is considerably smaller than the transmission wave of the frequency f2 used by the fixed wireless device 42-1.
しかし図示のように固定無線機41と移動無線機3aとの
距離l1が固定無線機42−１と移動無線機3aとの距離l2に
比べて相当長くなると固定無線機41の通話品質に悪影響
を与える。すなわち、移動無線機3aにおいて希望波Ｄ
（f1）と妨害波Ｕ（f1IM）とを復調後のレベルで表わす
と次のようになる。However, as shown in the figure, if the distance l1 between the fixed wireless device 41 and the mobile wireless device 3a becomes considerably longer than the distance l2 between the fixed wireless device 42-1 and the mobile wireless device 3a, the call quality of the fixed wireless device 41 is adversely affected. give. That is, the desired wave D
(F1) and the interfering wave U (f1IM) are represented by the demodulated levels as follows.
D/U＝Ａ−Ｂ＋Ｉ（dB） Ａ（dB）＝10log｛本来の送信波（希望波）電力／妨
害波発生電力｝ Ｂ（dB）＝10log｛希望波の送受信間の伝搬損失／妨
害波の送受信間の伝搬損失｝ Ｉ（dB）：変調に起因する改善度 D/Uは移動無線機3aの本来の通信以外に移動無線機3b
又は3cの通信が混合される度合を示す。すなわち、漏話
を示している。D / U = A−B + I (dB) A (dB) = 10log ｛Original transmission wave (desired wave) power / disturbance wave generation power｝ B (dB) = 10log ｛Propagation loss / disturbance wave between transmission and reception of the desired wave I / (dB): degree of improvement due to modulation D / U indicates the mobile radio 3b in addition to the original communication of the mobile radio 3a.
Or the degree to which the communication of 3c is mixed. That is, it indicates crosstalk.
例えばＡ＝60dB,I＝5dBとし、D/Uをコンパンダの効果
を与え、35dB（実質漏話70dB）とすると、必要な Ｂ＝Ａ−D/U＋Ｉ ＝60−35＋５ ＝30dBとなる。For example, if A = 60 dB, I = 5 dB, and D / U gives a compander effect and 35 dB (effective crosstalk 70 dB), the required B = A−D / U + I = 60−35 + 5 = 30 dB.
従って、移動無線機3aにおいて、登録した固定無線機
41からの位置報知信号よりも他の固定無線機42−１から
の位置報知信号を30dB以上のレベルで受信した場合に
は、漏話の規格を満さなくなる。Therefore, in the mobile wireless device 3a, the registered fixed wireless device
If the position notification signal from the other fixed wireless device 42-1 is received at a level of 30 dB or more than the position notification signal from 41, the crosstalk standard will not be satisfied.
また、詳述はしないが、固定無線機42−1,42−２に移
動無線機3aが相当接近した場合には、固定無線機42−1,
42−２からのf2,f3の送信波が移動無線機3aの受信機高
周波段に侵入し、前記送信相互変調と同様な周波数の関
係で妨害波を生じる受信相互変調が起こり、通話品質を
劣化させるという問題がある。Although not described in detail, when the mobile wireless device 3a approaches the fixed wireless devices 42-1 and 42-2 considerably, the fixed wireless devices 42-1 and 42-1 are
The transmission waves of f2 and f3 from 42-2 enter the receiver high-frequency stage of the mobile wireless device 3a, and receive intermodulation that causes an interfering wave in the same frequency relationship as the transmission intermodulation occurs, deteriorating speech quality. There is a problem of causing.
本発明の目的は、送信または受信相互変調による通話
品質の劣化を防ぐことができる移動無線機の位置登録方
式を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a location registration method for a mobile radio, which can prevent deterioration of communication quality due to transmission or reception intermodulation.
（課題を解決するための手段） 上記目的を達成するため、本発明の移動無線機の位置
登録方式は、 複数の移動無線機と、 これら移動無線機との間で無線回線を構成する複数の
固定無線機と、 これら固定無線機と複数の有線電話回線との間に接続
され、前記移動無線機と有線電話回線との間の通話路を
形成する回線制御装置と を備え、 前記回線制御装置から所定周期で各固定無線機に対し
て位置報知信号の送出指示を与えて、各固定無線機から
位置報知信号および各固定無線機に固有の識別信号を送
出させ、各移動無線機は、前記位置報知信号および前記
固定無線機の固有の識別信号の受信に基づいて自己がい
ずれの固定無線機の無線ゾーン内に位置しているかを識
別して、前記所定周期で自己の位置情報の記憶を更新す
ると共に、該更新した位置情報を前記回線制御装置に登
録する移動通信システムにおいて、 前記所定の周期内に前記回線制御装置に既に登録され
ている位置情報に対応する固定無線機から前記位置報知
情報を受信せず、かつ前記回線制御装置に既に登録され
ている位置情報に対応する固定無線機以外の他の固定無
線機から前記位置報知信号を受信した場合は、前記位置
情報を該他の固定無線機に対応する位置情報で更新し、 前記所定の周期内に前記回線制御装置に既に登録され
ている位置情報に対応する固定無線機から前記位置情報
を受信し、かつ他の固定無線機から前記位置報知信号を
受信し、前記既に登録されている位置情報に対応する固
定無線機からの位置報知信号の受信レベルよりも該他の
固定無線機からの位置報知信号の受信レベルが予め設定
された所定値を越えて大きい場合は、前記位置情報を前
記受信レベルの大きい他の固定無線機に対応する位置情
報で更新し、 前記所定の周期内に前記回線制御装置に既に登録され
ている位置情報に対応する固定無線機から前記位置情報
を受信し、かつ他の固定無線機から前記位置報知信号を
受信し、前記既に登録されている位置情報に対応する固
定無線機からの位置報知信号の受信レベルよりも該他の
固定無線機からの位置報知信号の受信レベルが前記予め
設定した所定値を越えて大きくない場合、若しくはいず
れの固定無線機からも前記位置報知信号を受信しない場
合は、前記位置情報の更新を禁止する ことを特徴とする。(Means for Solving the Problems) In order to achieve the above object, a location registration method for a mobile radio according to the present invention includes a plurality of mobile radios, and a plurality of mobile radios constituting a radio line between the mobile radios. A fixed wireless device, and a line control device connected between the fixed wireless device and a plurality of wired telephone lines to form a communication path between the mobile wireless device and the wired telephone line. From a predetermined period, a transmission instruction of a position notification signal is given to each fixed wireless device to cause each fixed wireless device to transmit a position notification signal and a unique identification signal to each fixed wireless device, and each mobile wireless device Based on the reception of the position notification signal and the unique identification signal of the fixed wireless device, it identifies which fixed wireless device is located in the wireless zone of which fixed wireless device, and stores its own position information at the predetermined cycle. Update and update In the mobile communication system to register the location information registered in the line control device, without receiving the position notification information from the fixed radio corresponding to the position information already registered in the line control device within the predetermined period, And when the position notification signal is received from a fixed wireless device other than the fixed wireless device corresponding to the position information already registered in the line control device, the position information corresponds to the other fixed wireless device Update with position information, receive the position information from the fixed wireless device corresponding to the position information already registered in the line control device within the predetermined cycle, and the position notification signal from another fixed wireless device The reception level of the position notification signal from the other fixed wireless device is set in advance from the reception level of the position notification signal from the fixed wireless device corresponding to the received and registered position information. If it is larger than the predetermined value, the location information is updated with the location information corresponding to the other fixed wireless device having the higher reception level, and the location already registered in the line control device within the predetermined cycle is updated. The position information is received from the fixed wireless device corresponding to the information, and the position notification signal is received from another fixed wireless device, and the position notification signal from the fixed wireless device corresponding to the already registered position information is received. If the reception level of the position information signal from the other fixed wireless device is not greater than the predetermined value, or if the position information signal is not received from any fixed wireless device, than the reception level, Updating of the location information is prohibited.
（作用） 位置登録済みの位置情報に対応する固定無線機と他の
位置情報に対応する固定無線機から受信される位置報知
信号の受信レベルを比較し、他の固定無線機から受信し
た位置報知信号の受信レベルが所定値以上大きかった場
合、移動無線機は他の固定無線機に近い位置に移動して
いることになるため、位置登録の更新を行う。(Operation) The reception level of the position notification signal received from the fixed wireless device corresponding to the registered position information and the position notification signal received from the fixed wireless device corresponding to the other position information is compared, and the position information received from the other fixed wireless device is compared. When the reception level of the signal is higher than the predetermined value, the mobile wireless device has moved to a position closer to another fixed wireless device, and the location registration is updated.
（実施例） 第１図は本発明の一実施例を示す位置登録処理のフロ
ーチャートであり、従来と同様に報知監視タイマをセッ
トした後、位置報知信号の受信待ちとなり（S10,S1
1）、いずれかの固定無線機から一定レベル以上の位置
報知信号を受信したならば、その位置報知信号が登録済
みの固定無線機からのものか、または他の固定無線機か
らのものかを調べ、その判別結果に応じて受信レベルを
記憶する（S13,S14）。ここで、一定レベル以上の位置
報知信号としているのは、通話品質を確保するためであ
る。(Embodiment) FIG. 1 is a flowchart of a location registration process according to an embodiment of the present invention. After setting a notification monitoring timer as in the prior art, the system waits for a position notification signal (S10, S1).
1) If a position notification signal of a certain level or more is received from any of the fixed wireless devices, whether the position notification signal is from a registered fixed wireless device or from another fixed wireless device is determined. It checks and stores the reception level according to the result of the determination (S13, S14). Here, the reason why the position notification signal is a certain level or higher is to ensure communication quality.
その後、報知監視タイマがタイムアウトになったなら
ば、タイムアウト前に登録済みの固定無線機からの位置
報知信号を受信したかを調べ（S15）、受信した場合に
は他の固定無線機からの位置報知信号を登録済みのもの
よりも所定値以上大きいレベルで受信したかを調べる
（S18,S19）。Thereafter, if the notification monitoring timer times out, it is checked whether or not a position notification signal from a registered fixed wireless device has been received before the time out (S15). It is checked whether the notification signal has been received at a level higher than the registered signal by a predetermined value or more (S18, S19).
所定値以上大きいレベルで受信した場合には、新たな
無線ゾーンに移動したことになるため、位置登録の更新
を行う（S17）。しかし、前記条件を満たさないときに
は、報知監視タイマをセットして再度位置報知信号の受
信待ちに戻る（S10）。登録済みの固定無線機からの位
置報知信号を受信しなかった場合には第３図に示した従
来の動作と同じ動作を行う。If the signal is received at a level higher than the predetermined value, it means that the mobile station has moved to a new wireless zone, and the location registration is updated (S17). However, when the above condition is not satisfied, the notification monitoring timer is set and the process returns to waiting for the reception of the position notification signal (S10). When the position notification signal from the registered fixed wireless device is not received, the same operation as the conventional operation shown in FIG. 3 is performed.
以上説明したように本発明は、移動無線機において位
置登録済みの位置情報に対応する固定無線機からの位置
報知信号よりも他の固定無線機からの位置報知信号が所
定値以上大きなレベルで受信された場合、位置登録済み
の位置情報に対応する固定無線機の無線ゾーン内にあっ
たとしても他の固定無線機が最寄りの固定無線機である
として位置登録を更新するようにしたものである。これ
により、送信あるいは受信相互変調による妨害波の発生
レベルを減少させ、所要の通話品質を確保することがで
きる。As described above, according to the present invention, a position notification signal from another fixed wireless device is received at a level greater than a predetermined value than a position notification signal from a fixed wireless device corresponding to the position information registered in the mobile wireless device. In this case, even if it is within the wireless zone of the fixed wireless device corresponding to the registered location information, the other fixed wireless device is updated as the nearest fixed wireless device and the location registration is updated. . As a result, it is possible to reduce the generation level of the interfering wave due to the transmission or reception intermodulation, and to secure required communication quality.
また、常に、最短距離にある固定無線機の無線ゾーン
に対して位置登録がなされるため、無線ゾーン毎に登録
している移動無線機の台数が特定のものに集中しなくな
り、トラヒックの集中が緩和されて呼損を低減させるこ
とができる。In addition, since location registration is always performed for the wireless zone of the fixed wireless device located at the shortest distance, the number of mobile wireless devices registered for each wireless zone does not concentrate on a specific one, and traffic concentration is reduced. It can be mitigated to reduce call loss.
第１図は本発明の一実施例を示す位置登録処理のフロー
チャート、第２図は移動通信システムの一般的構成を示
すブロック図、第３図は従来の位置登録処理のフローチ
ャート、第４図は移動無線機が他の固定無線機の近傍に
移動した様子を示す説明図である。 3a〜3e……移動無線機、41〜43……固定無線機、51〜53
……無線ゾーン、6a〜6e……有線電話回線、７……回線
制御装置。FIG. 1 is a flowchart of a location registration process showing one embodiment of the present invention, FIG. 2 is a block diagram showing a general configuration of a mobile communication system, FIG. 3 is a flowchart of a conventional location registration process, and FIG. It is explanatory drawing which shows a mode that the mobile radio | wireless moved to the vicinity of another fixed radio | wireless. 3a-3e: Mobile radio, 41-43: Fixed radio, 51-53
… Wireless zone, 6a to 6e… Wired telephone line, 7… Line control device.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 水鳥 康夫 東京都千代田区内幸町１丁目１番６号 日本電信電話株式会社内 (56)参考文献 特開 昭63−176026（ＪＰ，Ａ) 特開 昭53−131703（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H04B 7/26 106 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasuo Mizutori 1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (56) References JP-A-63-176026 (JP, A) JP-A Sho 53-131703 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) H04B 7/26 106
Claims (1)
定無線機と、 これら固定無線機と複数の有線電話回線との間に接続さ
れ、前記移動無線機と有線電話回線との間の通話路を形
成する回線制御装置と を備え、 前記回線制御装置から所定周期で各固定無線機に対して
位置報知信号の送出指示を与えて、各固定無線機から位
置報知信号および各固定無線機に固有の識別信号を送出
させ、各移動無線機は、前記位置報知信号および前記固
定無線機の固有の識別信号の受信に基づいて自己がいず
れの固定無線機の無線ゾーン内に位置しているかを識別
して、前記所定周期で自己の位置情報の記憶を更新する
と共に、該更新した位置情報を前記回線制御装置に登録
する移動通信システムにおいて、 前記所定の周期内に前記回線制御装置に既に登録されて
いる位置情報に対応する固定無線機から前記位置報知情
報を受信せず、かつ前記回線制御装置に既に登録されて
いる位置情報に対応する固定無線機以外の他の固定無線
機から前記位置報知信号を受信した場合は、前記位置情
報を該他の固定無線機に対応する位置情報で更新し、 前記所定の周期内に前記回線制御装置に既に登録されて
いる位置情報に対応する固定無線機から前記位置情報を
受信し、かつ他の固定無線機から前記位置報知信号を受
信し、前記既に登録されている位置情報に対応する固定
無線機からの位置報知信号の受信レベルよりも該他の固
定無線機からの位置報知信号の受信レベルが予め設定さ
れた所定値を越えて大きい場合は、前記位置情報を前記
受信レベルの大きい他の固定無線機に対応する位置情報
で更新し、 前記所定の周期内に前記回線制御装置に既に登録されて
いる位置情報に対応する固定無線機から前記位置情報を
受信し、かつ他の固定無線機から前記位置報知信号を受
信し、前記既に登録されている位置情報に対応する固定
無線機からの位置報知信号の受信レベルよりも該他の固
定無線機からの位置報知信号の受信レベルが前記予め設
定した所定値を越えて大きくない場合、若しくはいずれ
の固定無線機からも前記位置報知信号を受信しない場合
は、前記位置情報の更新を禁止する ことを特徴とする移動無線機の位置登録方式。1. A plurality of mobile radios, a plurality of fixed radios forming a radio line between the mobile radios, and a plurality of fixed radios connected between the fixed radios and a plurality of wired telephone lines, A line control device for forming a communication path between the mobile radio device and the wired telephone line, wherein the line control device issues a position notification signal transmission instruction to each fixed radio device at a predetermined cycle, and The wireless device transmits a position notification signal and a unique identification signal to each fixed wireless device, and each mobile wireless device determines which fixed wireless device is based on the reception of the position notification signal and the unique identification signal of the fixed wireless device. A mobile communication system that identifies whether the wireless device is located in a wireless zone, updates storage of its own location information at the predetermined cycle, and registers the updated location information in the line control device; Predetermined A fixed wireless device that does not receive the position report information from the fixed wireless device corresponding to the position information already registered in the line control device during the period, and that corresponds to the position information already registered in the line control device. If the position notification signal is received from another fixed wireless device other than the above, the position information is updated with the position information corresponding to the other fixed wireless device, and the position information is already registered in the line control device within the predetermined cycle. Receiving the position information from the fixed wireless device corresponding to the position information that has been received, and receiving the position notification signal from another fixed wireless device, from the fixed wireless device corresponding to the already registered position information If the reception level of the position notification signal from the other fixed wireless device is higher than the reception level of the position notification signal beyond a predetermined value, the position information is stored in another fixed radio having the higher reception level. The location information corresponding to the machine is updated, the location information is received from the fixed wireless device corresponding to the position information already registered in the line control device within the predetermined period, and the other fixed wireless device Receiving the position notification signal, the reception level of the position notification signal from the other fixed wireless device is set to the predetermined level than the reception level of the position notification signal from the fixed wireless device corresponding to the already registered position information. A location registration method for a mobile wireless device, wherein updating of the location information is prohibited when the value is not larger than a predetermined value or when the location notification signal is not received from any fixed wireless device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63246278A JP3015379B2 (en) | 1988-09-30 | 1988-09-30 | Mobile radio location registration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63246278A JP3015379B2 (en) | 1988-09-30 | 1988-09-30 | Mobile radio location registration method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0294827A JPH0294827A (en) | 1990-04-05 |
| JP3015379B2 true JP3015379B2 (en) | 2000-03-06 |
Family
ID=17146160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63246278A Expired - Lifetime JP3015379B2 (en) | 1988-09-30 | 1988-09-30 | Mobile radio location registration method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3015379B2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2611524B2 (en) * | 1990-09-21 | 1997-05-21 | 日本電気株式会社 | Mobile terminal location confirmation method |
| JP3286347B2 (en) * | 1992-07-21 | 2002-05-27 | 株式会社日立製作所 | Mobile terminal location information display system |
| JP2952857B2 (en) * | 1993-10-07 | 1999-09-27 | エニー株式会社 | Mobile communication system and control method therefor |
| CA2134395A1 (en) * | 1993-11-26 | 1995-05-27 | Keith Andrew Olds | Method and apparatus for management of automatically initiated communication |
| JPH08168074A (en) * | 1994-12-15 | 1996-06-25 | Nec Corp | Position management system for moving body communication |
| JP3776942B2 (en) * | 1995-03-03 | 2006-05-24 | 富士通株式会社 | Mobile station equipment |
| DE19831086C2 (en) | 1998-07-10 | 2001-10-18 | Ericsson Telefon Ab L M | Telecommunication system |
| JP2000183890A (en) * | 1998-12-10 | 2000-06-30 | Mitsubishi Materials Corp | Wireless server, mobile terminal and recording medium |
| JP6811663B2 (en) * | 2017-03-24 | 2021-01-13 | Kddi株式会社 | Management support system and wireless tag base unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53131703A (en) * | 1977-04-21 | 1978-11-16 | Nec Corp | Busy channel switching system |
| JPH0720079B2 (en) * | 1987-01-16 | 1995-03-06 | 日本電信電話株式会社 | Mobile wireless communication system |
-
1988
- 1988-09-30 JP JP63246278A patent/JP3015379B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0294827A (en) | 1990-04-05 |
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