JP2878397B2 - Incoming call control method - Google Patents
Incoming call control methodInfo
- Publication number
- JP2878397B2 JP2878397B2 JP2148808A JP14880890A JP2878397B2 JP 2878397 B2 JP2878397 B2 JP 2878397B2 JP 2148808 A JP2148808 A JP 2148808A JP 14880890 A JP14880890 A JP 14880890A JP 2878397 B2 JP2878397 B2 JP 2878397B2
- Authority
- JP
- Japan
- Prior art keywords
- station
- mobile station
- base station
- communicating
- communication
- 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
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、移動通信において、複数の交換局が移動機
と通信を行なう場合の制御方法に関し、回線交換サービ
スとパケット交換サービスを同時に、同一の移動機に対
して、同一の基地局を使用して、サービス毎に別な交換
局が提供する場合に特に有効な制御方法に係る。Description: BACKGROUND OF THE INVENTION The present invention relates to a control method in a case where a plurality of exchanges communicate with a mobile station in mobile communication. The present invention relates to a control method which is particularly effective when another switching center is provided for each service using the same base station for the mobile station.
従来の移動通信システムでは、移動機が通信中にはア
ンカ局と呼ぶ交換局を固定し、移動機の移動に伴い接続
する交換局が変わっても必ずアンカ局を経由し、アンカ
局で継続的に同一のトランク等を使用する方式をとるこ
とによって、また、通信中に新たに呼が発生した場合も
通信中の呼のアンカ局を必ず経由し、アンカ局で両方の
呼にまたがるサービス等を提供することによって、処理
の軽減、通信の断時間の短縮を図っている。In a conventional mobile communication system, an exchange station called an anchor station is fixed during communication by a mobile station, and even if a connected exchange station changes as the mobile station moves, the mobile station always passes through the anchor station and continues to operate at the anchor station. In addition, by using the same trunk, etc., even if a new call is made during communication, the service that passes through both calls must be passed through the anchor station of the call during communication. By providing this, processing is reduced, and communication downtime is reduced.
このため、第１図に示すように、移動機が非通信中
は、移動機に対して移動機と通信可能な基地局を含む複
数の基地局からなる位置登録エリアを位置登録センタに
登録し、着信接続時にアンカ交換局となる交換局は登録
された位置登録エリアに含まれる基地局あるいは基地局
を制御する無線局に対して移動機の呼び出しを要求す
る。無線区間で基地局が移動機の呼び出しを実行し、通
信する基地局が決まったことをアンカ交換局に応答する
と、確定した基地局を経由して移動機に対してサービス
情報を含む着信信号を転送する。For this reason, as shown in FIG. 1, while the mobile station is not communicating, the location registration area including a plurality of base stations including the base station capable of communicating with the mobile station is registered with the location registration center. In addition, an exchange that becomes an anchor exchange at the time of terminating connection requests a mobile station to call a base station or a radio station controlling the base station included in the registered location registration area. When the base station calls the mobile station in the wireless section and responds to the anchor exchange that the base station to communicate with has been determined, the base station issues an incoming signal including service information to the mobile station via the determined base station. Forward.
また第２図に示すように、移動機が通信中は、実際に
移動機が通信を行なっている基地局にかかわらず移動機
に対するアンカ局を位置登録センタに登録し、移動機が
通信を行なっている基地局までの接続はアンカ局が管理
し、呼び出し動作を行なうことなく着信信号を転送す
る。As shown in FIG. 2, while the mobile station is communicating, the anchor station for the mobile station is registered in the location registration center regardless of the base station with which the mobile station is actually communicating, and the mobile station performs communication. The connection to the base station is managed by the anchor station, and the incoming signal is transferred without performing a calling operation.
上述したような従来の技術では、移動機に対してアン
カ局は１局に固定されているので、同一の移動機に対し
て複数のサービスを提供する場合、サービス毎にアンカ
局を変えることができないと言う問題点があった。In the conventional technique described above, the anchor station is fixed to one mobile station, so when providing a plurality of services to the same mobile station, it is necessary to change the anchor station for each service. There was a problem that it was impossible.
本発明は、移動通信システムにおいてアンカ局を複数
化することによってサービス毎の独立性が高く、かつ、
制御の容易なシステムの実現を図ることを意図するもの
であって、特に、回線交換サービスを提供している移動
通信システムにおいて、パケット交換サービスを新たに
提供する場合に、既存のシステムを大きく変更せずに、
同時に回線交換サービスとパケット交換サービスを同一
の移動機を受けることができるようにする手段を提供す
ることを目的としている。The present invention provides high independence for each service by using a plurality of anchor stations in a mobile communication system, and
It is intended to realize an easy-to-control system. Particularly, in a mobile communication system that provides a circuit-switched service, when a new packet-switched service is provided, the existing system is largely changed. Without,
It is another object of the present invention to provide means for enabling the same mobile station to receive both the circuit switching service and the packet switching service.
本発明は前述の問題点を解決し、上記目的を達成する
ために成されたものである。The present invention has been made to solve the above-mentioned problems and achieve the above object.
すなわち、本発明は、移動機と移動機と無線回線を用
いて通信を行なう基地局と、基地局と通信を行なう複数
の交換局と、移動機が非通信中には移動機と通信を行な
うことができる可能性がある１または１群の基地局を記
憶し、移動機が通信中には移動機に対してサービスの受
け付けを行なった交換局を移動機毎に記憶する位置登録
センタから構成した移動通信システムにおいて、移動機
が基地局と通信を行なっているとき、位置登録センタに
移動機が通信を行なっている基地局を記憶し、該移動機
との通信を行なっていない交換局が該移動機と通信を行
なう必要が生じたとき位置登録センタに記憶してある情
報から、該移動機と通信を行なっている基地局を知り、
該基地局を経由して該移動機との通信を開始する如く制
御する通信中着信制御方式である。That is, the present invention provides a mobile station, a base station that communicates with the mobile station using a radio line, a plurality of exchanges that communicate with the base station, and a communication with the mobile station while the mobile station is not communicating. A location registration center that stores one or a group of base stations that may be able to perform the service, and stores, for each mobile station, an exchange that has received service for the mobile station while the mobile station is communicating. In the mobile communication system described above, when the mobile station is communicating with the base station, the base station with which the mobile station is communicating is stored in the location registration center, and the exchange that is not communicating with the mobile station is stored. When it becomes necessary to communicate with the mobile station, the base station communicating with the mobile station is known from the information stored in the location registration center,
This is a communication terminating control system for controlling communication with the mobile device via the base station to start.
本発明は、移動機が基地局と通信を行なっている場合
は、その移動機に対して、通信を行なっている基地局を
位置登録センタに登録することを最も主要な特徴とす
る。The most important feature of the present invention is that when a mobile station is communicating with a base station, the base station with which the mobile station is communicating is registered with the location registration center.
すなわち、従来方式では、通信中の基地局をその通信
に対するアンカ交換局に登録する方式をとっていたた
め、全ての通信を同一のアンカ局で制御するか、アンカ
局を複数にしてアンカ局間で制御手順を持つ必要があ
り、さらに、特定のアンカ局を主制御局とするとその交
換局が提供する通信が終了しても、他の交換局の通信の
ために処理を継続する必要があるので、交換局ごとの独
立性が保てないと言う欠点があったが、本発明の方式で
は、上述のように移動機と通信を行なっている基地局を
位置登録センタに登録してあるので、該移動機と基地局
が通信を行なっている状態では、その通信に対するアン
カ交換局以外の交換局も位置登録センタに対して移動機
が通信中の基地局を問い合わせることにより、その通信
に対するアンカ局とは無関係に移動機間の通信を開始す
ることができる。In other words, in the conventional system, the base station in communication is registered with the anchor exchange for the communication, so that all communication is controlled by the same anchor station, or a plurality of anchor stations are used to control the communication between the anchor stations. It is necessary to have a control procedure, and if a specific anchor station is set as the main control station, even if the communication provided by that exchange ends, it is necessary to continue processing for the communication of another exchange. However, there is a disadvantage that independence of each exchange cannot be maintained, but in the method of the present invention, the base station communicating with the mobile station is registered in the location registration center as described above. In a state where the mobile station and the base station are communicating, the exchanges other than the anchor exchange for the communication also send an inquiry to the location registration center about the base station with which the mobile station is communicating. Is nothing It may initiate communication between the mobile station to the engagement.
第３図は本発明の実施するシステム構成の例を示す図
であり、１は移動機、2,3は基地局、4,5はそれぞれ基地
局2,3に対応する無線ゾーン、６は無線ゾーン4,5から構
成される位置登録エリア、７は基地局2,3の直近の回線
交換局、８は回線交換サービスのアンカ局、９はパケッ
ト交換サービスのアンカ局、10は位置登録センタを表わ
している。ここで、パケット交換サービスのアンカ局９
と基地局2,3の間には物理的あるいは論理的な専用線が
設定されている。FIG. 3 is a diagram showing an example of a system configuration implemented by the present invention, wherein 1 is a mobile station, 2 and 3 are base stations, 4 and 5 are wireless zones corresponding to the base stations 2 and 3, respectively, and 6 is a wireless zone. A location registration area composed of zones 4 and 5, 7 is a circuit switching station nearest to base stations 2 and 3, 8 is an anchor station for circuit switching service, 9 is an anchor station for packet switching service, and 10 is a location registration center. It represents. Here, the anchor station 9 of the packet switching service
A physical or logical dedicated line is set between the base station 2 and the base station 2.
第４図は、本発明の位置登録センタに新規に追加する
通信中の基地局情報と基地局情報を用いた回線交換通信
中のパケット交換着信手順例を示す図である。FIG. 4 is a diagram showing base station information during communication to be newly added to the location registration center of the present invention and an example of a packet switching termination procedure during circuit switching communication using the base station information.
移動機１と基地局２を経由して回線交換アンカ局８と
の間で回線交換通信中の場合、回線交換アンカ局８およ
び位置登録センタ10には移動機１に対して基地局２が通
信中であることが登録してある。移動機１の移動に伴い
通信する基地局が基地局２から基地局３に変更した場
合、従来方式と同様に回線交換アンカ局８の移動機１が
通信中である基地局を基地局３に変更するとともに、基
地局３は移動機１との通信を開始したことを位置登録セ
ンタ10に登録する。When circuit switching communication is being performed between the mobile station 1 and the circuit switching anchor station 8 via the base station 2, the base station 2 communicates with the mobile station 1 to the circuit switching anchor station 8 and the location registration center 10. It is registered that it is in. When the base station which communicates with the movement of the mobile station 1 is changed from the base station 2 to the base station 3, the base station with which the mobile station 1 of the circuit-switched anchor station 8 is communicating is changed to the base station 3 as in the conventional method. At the same time, the base station 3 registers in the location registration center 10 that the communication with the mobile device 1 has started.
このように位置登録センタ10には移動機１が通信中の
場合は通信中である基地局を常に登録しておく。移動機
１と基地局３が通信中の状態で、新たにパケット通信の
着信があった場合、パケット交換アンカ局９は位置登録
センタ10に、通信中の基地局を問い合わせる。問い合わ
せの結果に従い、パケット交換アンカ局９は基地局３を
経由して移動機１に対して着信して、パケット交換通信
中に遷移する。また、その後、回線交換通信が解放され
ると、回線交換アンカ局８は移動機１に対して通信中の
基地局の情報を消去する。As described above, when the mobile station 1 is communicating, the base station with which the mobile station 1 is communicating is always registered in the location registration center 10. When a new packet communication is received while the mobile station 1 and the base station 3 are communicating, the packet switching anchor station 9 inquires the location registration center 10 about the base station with which the communication is in progress. According to the result of the inquiry, the packet switching anchor station 9 arrives at the mobile device 1 via the base station 3 and makes a transition during packet switching communication. After that, when the circuit switching communication is released, the circuit switching anchor station 8 deletes information of the base station which is communicating with the mobile station 1.
以上説明したように、位置登録センタに移動機が通信
中の基地局を登録することにより、回線交換システムが
パケット交換システムの状態を知る必要がなくなり、容
易にパケット交換システムの追加ができるようになる。
なお、本方式は同一のサービスであっても複数の局が複
数の通信を管理する場合に用いることができる。As described above, by registering the base station with which the mobile station is communicating with the location registration center, the circuit switching system does not need to know the state of the packet switching system, and the packet switching system can be easily added. Become.
Note that this method can be used when a plurality of stations manage a plurality of communications even for the same service.
第１図は、従来の移動機が基地局と通信を行なっていな
い場合の回線交換接続手順を示す図、第２図は、従来の
移動機が回線交換通信中で、移動機と通信中の基地局が
存在する場合の回線交換接続手順を示す図、第３図は本
発明を実施するシステム構成の例を示す図、第４図は本
発明の回線交換通信中の場合のパケット交換接続手順を
示す図である。 １…移動機、2,3…基地局、4,5…無線ゾーン、６…位置
登録エリア、７…回線交換局、８…回線交換サービスの
アンカ局、９…パケット交換サービスのアンカ局、10…
位置登録センタFIG. 1 is a diagram showing a circuit switching connection procedure when a conventional mobile device is not communicating with a base station, and FIG. 2 is a diagram showing a conventional mobile device performing circuit switching communication and communicating with the mobile device. FIG. 3 is a diagram showing a circuit switching connection procedure when a base station is present, FIG. 3 is a diagram showing an example of a system configuration for implementing the present invention, and FIG. 4 is a packet switching connection procedure during circuit switching communication of the present invention. FIG. DESCRIPTION OF SYMBOLS 1 ... Mobile station, 2,3 ... Base station, 4,5 ... Wireless zone, 6 ... Location registration area, 7 ... Circuit switching station, 8 ... Anchor station of circuit switching service, 9 ... Anchor station of packet switching service, 10 …
Location registration center
───────────────────────────────────────────────────── フロントページの続き (72)発明者 武田 栄夫 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 平２−162845（ＪＰ，Ａ) 特開 平４−42695（ＪＰ，Ａ) 特開 平４−18896（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) H04B 7/26 H04Q 7/00 - 7/38 H04L 12/56 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hideo Takeda 1-6-1, Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (56) References JP-A-2-162845 (JP, A) JP-A-Hei 4-42695 (JP, A) JP-A-4-18896 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) H04B 7/26 H04Q 7/00-7/38 H04L 12 / 56
Claims (1)
を行なう基地局と、基地局と通信を行なう複数の交換局
と、移動機が非通信中には移動機と通信を行なうことが
できる可能性がある少なくとも一つの基地局を記憶し、
移動機が通信中には移動機に対してサービスの受け付け
を行なった交換局を移動機毎に記憶する位置登録センタ
から構成した移動通信システムにおいて、 移動機が基地局と通信を行なっているとき、位置登録セ
ンタに移動機が通信を行なっている基地局を記憶し、該
移動機との通信を行なっていない交換局が該移動機と通
信を行なう必要が生じたとき位置登録センタに記憶して
ある情報から、該移動機と通信を行なっている基地局を
知り、該基地局を経由して該移動機との通信を開始する
如く制御することを特徴とする通信中着信制御方式。A mobile station, a base station that communicates with the mobile station using a radio link, a plurality of exchanges that communicate with the base station, and a communication with the mobile station while the mobile station is not communicating. Storing at least one potential base station,
When a mobile station is communicating with a base station in a mobile communication system consisting of a location registration center that stores, for each mobile station, an exchange that has received service for the mobile station while the mobile station is communicating. The base station with which the mobile station is communicating is stored in the location registration center, and when the exchange which is not communicating with the mobile station needs to communicate with the mobile station, it is stored in the location registration center. A communication incoming call control method characterized by knowing a base station that is communicating with the mobile station from certain information, and controlling to start communication with the mobile station via the base station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2148808A JP2878397B2 (en) | 1990-06-08 | 1990-06-08 | Incoming call control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2148808A JP2878397B2 (en) | 1990-06-08 | 1990-06-08 | Incoming call control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0442696A JPH0442696A (en) | 1992-02-13 |
| JP2878397B2 true JP2878397B2 (en) | 1999-04-05 |
Family
ID=15461176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2148808A Expired - Lifetime JP2878397B2 (en) | 1990-06-08 | 1990-06-08 | Incoming call control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2878397B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004236001A (en) | 2003-01-30 | 2004-08-19 | Ntt Docomo Inc | Mobile communication system, location information managing device, and routing information managing device |
| JP4641311B2 (en) * | 2007-04-16 | 2011-03-02 | 株式会社エヌ・ティ・ティ・ドコモ | Mobile communication system, position information management device |
-
1990
- 1990-06-08 JP JP2148808A patent/JP2878397B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0442696A (en) | 1992-02-13 |
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