JPH01223834A - Communication channel assign system - Google Patents

Communication channel assign system

Info

Publication number
JPH01223834A
JPH01223834A JP63050075A JP5007588A JPH01223834A JP H01223834 A JPH01223834 A JP H01223834A JP 63050075 A JP63050075 A JP 63050075A JP 5007588 A JP5007588 A JP 5007588A JP H01223834 A JPH01223834 A JP H01223834A
Authority
JP
Japan
Prior art keywords
service area
underlay
base station
radio base
channel
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
Application number
JP63050075A
Other languages
Japanese (ja)
Inventor
Masakazu Ishihara
正和 石原
Jinichi Aoki
青木 仁一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
NEC Communication Systems Ltd
Original Assignee
NEC Corp
NEC Communication Systems Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, NEC Communication Systems Ltd filed Critical NEC Corp
Priority to JP63050075A priority Critical patent/JPH01223834A/en
Publication of JPH01223834A publication Critical patent/JPH01223834A/en
Pending legal-status Critical Current

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  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To relax the congestion of signal lines between a radio base station and an exchange station by sending an assign order for underlay service area communication channel while using an overlay service area control channel. CONSTITUTION:When a mobile terminal equipment 4 stays in an overlay service area 16 and also an underlay service area 26, the mobile terminal equipment 4 uses a control channel of a radio base station 1 to apply call order or incoming reply. When the electric field level of the call order and incoming reply received by a radio base station 2 is a prescribed value or over, a remote processor 25 reports it to an exchange station 3. When the exchange station 3 receives the report of call order and incoming reply from the radio base stations 1, 2, an idle channel for underlay service area is selected and an overlay service area control channel is used to command the switching order to the underlay service area channel to the mobile terminal equipment 4. Thus, it is possible to make the channel assign of underlay service area.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は移動無線交換方式に関し、特にセルラー自動車
電話システム(Cellular  M。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to mobile radio switching systems, and more particularly to cellular mobile phone systems (Cellular M).

bi le  Te 1ephone  System
)にオーバーレイサービス機能及びアンダーレイサービ
ス機能を導入した場合の通話チャネルアサイン方式に関
する。
bi le Te 1ephone System
) relates to a call channel assignment method when an overlay service function and an underlay service function are introduced.

〔従来の技術〕[Conventional technology]

従来、負荷分散のためのオーバーレイサービスエリア(
Overlay  5ervice  Area)及び
アンダーレイサービスエリア(Underlay  5
ervice  Area)の併用は行なわれていない
か、行なわれていてもコントロールチャネルはフォワー
ド及びリバース一体でオーバーレイサービスエリア及び
アンダーレイサービスエリア用とそれぞれ独立していた
Traditionally, overlay service areas (
Overlay 5 service area) and underlay service area (Underlay 5 service area)
Service Area) is not used in combination, or even if it is used, the control channels are integrated for forward and reverse, and are independent for the overlay service area and underlay service area.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上述した従来のオーバーレイサービスエリアコントロー
ルチャネル及びアンダーレイサービスエリアコントロー
ルチャネルは、独立してフォワード、リバース一対とな
っているので移動端末がアンダーレイサービスエリアに
居る場合、オーバーレイサービスエリアのコントロール
チャネルフォワード信号を受信し、オーバーレイサービ
スエリアにリバース信号を送信していたので交換局側で
アンタ−レイサービスエリアのコントロールチャネルを
使用するように移動端末に信号を送信する必要がある。
The conventional overlay service area control channel and underlay service area control channel described above are a forward and reverse pair independently, so when a mobile terminal is in the underlay service area, it transmits the control channel forward signal of the overlay service area. Since a reverse signal was sent to the overlay service area, the switching center needs to send a signal to the mobile terminal to use the control channel of the underlay service area.

〔問題点を解決するための手段〕[Means for solving problems]

本発明の通話チャネルアサイン方式はオーバーレイサー
ビスエリアに対応する第1の無線基地局のリバースコン
トロールチャネルをアンダーレイサービスエリアに対応
する第2の無線基地局てモニタし、前記リバースコント
ロールチャネルを用いて前記第2の無線基地局の通話チ
ャネルをアサインする構成である。
The communication channel assignment method of the present invention monitors the reverse control channel of a first radio base station corresponding to an overlay service area at a second radio base station corresponding to an underlay service area, and uses the reverse control channel to This is a configuration in which a communication channel of a second wireless base station is assigned.

〔作用〕[Effect]

本発明はオーバーレイサービスエリア用コントロールチ
ャネルのリバース側をアンダーレイサービスエリア無線
基地局にて受信し、オーバーレイサービスエリア用コン
トロールチャネルからアンダーレイサービスエリア用コ
ントロールチャネルへの切替え指示を行なうことなくア
ンダーレイサービスエリアの通話チャネルアサインを可
能とする。
The present invention receives the reverse side of a control channel for an overlay service area at an underlay service area radio base station, and provides an underlay service without instructing switching from a control channel for an overlay service area to a control channel for an underlay service area. Enables area call channel assignment.

〔実施例〕 次に、本発明について図面を参照して説明する。〔Example〕 Next, the present invention will be explained with reference to the drawings.

本発明の一実施例を示す図を参照すると、1゜2は無線
基地局、3は交換局、4は移動端末、5は公衆電話網で
ある。無線基地局1,2は空中線11.21−送受信機
12,22、コントロールチャネル中継装置13.23
、通話チャネル中継装ff14.24及びリモートプロ
セッサ15,25から構成される。交換局3は交換機3
1、通信制御装置32、トランク33.34及び通話路
35.36から構成される。
Referring to the figure showing one embodiment of the present invention, 1.2 is a wireless base station, 3 is a switching center, 4 is a mobile terminal, and 5 is a public telephone network. Radio base stations 1 and 2 include antennas 11 and 21, transceivers 12 and 22, and control channel relay devices 13 and 23.
, a communication channel relay device ff14.24, and remote processors 15 and 25. Exchange 3 is exchange 3
1, a communication control device 32, trunks 33, 34, and communication paths 35, 36.

この構成において、移動端末4から公衆電話網5への発
信時又は公衆電話網5から移動端末4への着信時、移動
端末4は交換局3の制御の基に無線基地局1又は2のコ
ントロールチャネルを使用して空き通話チャネルへの切
替え指示を受信する。移動端末4がオーバーレイザーヒ
スエリア16内でかつアンダーレイサービスエリア26
内に居る場合、オーバーレイサービスエリア用無線基地
局1のコントロールチャネルの電界レベルがアンダーレ
イサービスエリア用無線基地局2のコントロールチャネ
ルの電界レベルより強い為、移動端末4は無線基地局1
のコントロールチャネルを使用して発信オーダー又は着
信応答をする。移動端末4からの発信オーター、着信応
答はオーバーレイサービスエリア用無線基地局1とアン
ダーレイサービスエリア用無線基地局2とで受信する。
In this configuration, when a call is made from the mobile terminal 4 to the public telephone network 5 or when a call is received from the public telephone network 5 to the mobile terminal 4, the mobile terminal 4 controls the radio base station 1 or 2 under the control of the switching center 3. channel to receive an instruction to switch to a free call channel. Mobile terminal 4 is within overlay service area 16 and underlay service area 26
If the mobile terminal 4 is within the wireless base station 1, the electric field level of the control channel of the wireless base station 1 for the overlay service area is stronger than the electric field level of the control channel of the wireless base station 2 for the underlay service area.
The control channel is used to place an outgoing order or answer an incoming call. The outgoing calls and incoming responses from the mobile terminal 4 are received by the overlay service area radio base station 1 and the underlay service area radio base station 2.

無線基地局2で受信した移動端末4からの発信オーダー
、着信応答の電界レベルがある一定以上の場合、リモー
トプロセッサ25はこれを交換局3に報告する。交換局
3ては移動端末4からの発信オーター、着信応答を無線
基地局1のリモートプロセッサ15と無線基地局2のリ
モートプロセッサ25から報告を受けた場合、アンダー
レイサービスエリア用の空き通話チャネルを選ひ、オー
バーレイサービスエリア用コントロールチャネルを使用
して移動端末4にアンダーレイサービスエリア用通話チ
ャネルへの切替えオーダーを指示する。
If the electric field level of the outgoing order or incoming call response from the mobile terminal 4 received by the radio base station 2 is above a certain level, the remote processor 25 reports this to the exchange 3. When the switching center 3 receives a report from the remote processor 15 of the wireless base station 1 and the remote processor 25 of the wireless base station 2 regarding the call origination and the incoming call response from the mobile terminal 4, it selects an empty communication channel for the underlay service area. Then, using the overlay service area control channel, the mobile terminal 4 is instructed to order switching to the underlay service area communication channel.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明によれは、アンダーレイサー
ビスエリア用通話チャネルのアサインオーダーをオーバ
ーレイサーヒスエリアコントロールチャネルを使用して
送信することにより、コントロールチャネルの不用な切
替えによる無線基地局と交換局との信号路の輻較を緩和
することかできる。
As explained above, according to the present invention, by transmitting the assignment order of the communication channel for the underlay service area using the overlay service area control channel, the communication between the wireless base station and the switching center is achieved by unnecessary switching of the control channel. It is possible to alleviate the congestion in the signal path.

【図面の簡単な説明】[Brief explanation of the drawing]

図は本発明の一実施例を示す構成図である。 1.2・・・無線基地局、3・・・交換局、4・・・移
動端末、5・・・公衆電話網、13.14・・・コント
ロールチャネル中継装置、14.24・・通話チャネル
中継装置、16・・・オーバーレイサービスエリア、2
6・・・アンダーレイサービスエリア。
The figure is a configuration diagram showing an embodiment of the present invention. 1.2...Radio base station, 3...Switching center, 4...Mobile terminal, 5...Public telephone network, 13.14...Control channel relay device, 14.24...Speech channel Relay device, 16... Overlay service area, 2
6... Underlay service area.

Claims (1)

【特許請求の範囲】[Claims] オーバーレイサービスエリアに対応する第1の無線基地
局のリバースコントロールチャネルをアンダーレイサー
ビスエリアに対応する第2の無線基地局でモニタし、前
記リバースコントロールチャネルを用いて前記第2の無
線基地局の通話チャネルをアサインすることを特徴とす
る通話チャネルアサイン方式。
A reverse control channel of a first radio base station corresponding to an overlay service area is monitored by a second radio base station corresponding to an underlay service area, and a call of the second radio base station is controlled using the reverse control channel. A call channel assignment method characterized by assigning channels.
JP63050075A 1988-03-02 1988-03-02 Communication channel assign system Pending JPH01223834A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63050075A JPH01223834A (en) 1988-03-02 1988-03-02 Communication channel assign system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63050075A JPH01223834A (en) 1988-03-02 1988-03-02 Communication channel assign system

Publications (1)

Publication Number Publication Date
JPH01223834A true JPH01223834A (en) 1989-09-06

Family

ID=12848888

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63050075A Pending JPH01223834A (en) 1988-03-02 1988-03-02 Communication channel assign system

Country Status (1)

Country Link
JP (1) JPH01223834A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0504122A2 (en) * 1991-03-15 1992-09-16 Telefonaktiebolaget L M Ericsson Neighbor-assisted handoff in a cellular communications system
FR2685149A1 (en) * 1991-12-12 1993-06-18 Ericsson Telefon Ab L M CELLULAR MOBILE RADIOTELEPHONE SYSTEM AND ACCESS DEMAND PROCESSING METHOD THEREFOR.
FR2697390A1 (en) * 1992-10-26 1994-04-29 Ericsson Ge Mobile Communicat Method for establishing a call connection in a cellular radiotelephone system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0504122A2 (en) * 1991-03-15 1992-09-16 Telefonaktiebolaget L M Ericsson Neighbor-assisted handoff in a cellular communications system
FR2685149A1 (en) * 1991-12-12 1993-06-18 Ericsson Telefon Ab L M CELLULAR MOBILE RADIOTELEPHONE SYSTEM AND ACCESS DEMAND PROCESSING METHOD THEREFOR.
US5357559A (en) * 1991-12-12 1994-10-18 Telefonaktiebolaget L M Ericsson Listening control channel in a cellular mobile radiotelephone system
FR2697390A1 (en) * 1992-10-26 1994-04-29 Ericsson Ge Mobile Communicat Method for establishing a call connection in a cellular radiotelephone system
US5546443A (en) * 1992-10-26 1996-08-13 Ericsson Ge Mobile Communications, Inc. Communication management technique for a radiotelephone system including microcells

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