JPH029294A - Isdn subscriber radio communication system - Google Patents
Isdn subscriber radio communication systemInfo
- Publication number
- JPH029294A JPH029294A JP63159764A JP15976488A JPH029294A JP H029294 A JPH029294 A JP H029294A JP 63159764 A JP63159764 A JP 63159764A JP 15976488 A JP15976488 A JP 15976488A JP H029294 A JPH029294 A JP H029294A
- Authority
- JP
- Japan
- Prior art keywords
- line
- channel
- radio channel
- subscriber
- radio
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000004913 activation Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 1
Landscapes
- Mobile Radio Communication Systems (AREA)
- Radio Relay Systems (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、異なった速度の回線を複数ユーザに提供する
ユーザ・網インタフエースを有する通信網であるいわゆ
る統合サービスディジタル通信網（以下ＩＳＤＮという
。）に関する。特に、本発明は、ユーザの端末装置と加
入者線交換機との間の加入者伝送路として周波数分割さ
れた複数の無線チャネルを用い、この無線チャネルを呼
の要求に応じて割り当てて設定する加入者無線通信方式
〔従来の技術〕
ユーザに対して異なった速度の回線を複数提供し、その
うちの一種類の回線をユーザの端末装置と交換機間の呼
制御回線とし、その他の回線を情根回線として使用する
ユーザ・網インタフエースを持つ通信網が構築されてい
る。この通信網を一般にＩＳＤＮといっている。このＩ
ＳＤＮ通信網において、加入者線交換機とユーザ端末装
置とを結ぶ加入者伝送路として端末装置が接続されるユ
ーザ局装置と加入者線交換機に接続される基地局装置と
の間を無線回線で構成し、このユーザ局装置と基地局装
置間の無線回線を周波数分割された複数の無線チャネル
で構成する通信方式では、従来、ＩＳＤＮのユーザ・網
インタフエースで規定された回線の他に無線チャネル制
御用回線を無線チャネル内に設け、所要の回線用無線チ
ャネルが要求により必要なユーザ局装置に割当てられる
方式がとられていた。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a so-called integrated services digital network (hereinafter referred to as ISDN), which is a communications network having a user-network interface that provides lines of different speeds to multiple users. ). In particular, the present invention uses a plurality of frequency-divided radio channels as subscriber transmission paths between a user's terminal device and a local line exchange, and a subscription service that allocates and sets these radio channels according to call requirements. [Prior art] Multiple lines with different speeds are provided to users, one type of line is used as a call control line between the user's terminal device and the exchange, and the other lines are used as call control lines. A communication network has been constructed that has a user/network interface used as a network interface. This communication network is generally called ISDN. This I
In an SDN communication network, a wireless link is used as a subscriber transmission path connecting a subscriber line exchange and a user terminal device between a user station device to which a terminal device is connected and a base station device connected to the subscriber line exchange. However, in the communication system in which the radio link between the user station equipment and the base station equipment is configured with multiple frequency-divided radio channels, conventionally, in addition to the link specified by the ISDN user/network interface, radio channel control A system has been adopted in which a dedicated line is provided within a wireless channel, and a required wireless channel for the line is allocated to a necessary user station device upon request.
しかし、この従来の無線チャネルによる通信方式では、
ユーザ・網インタフエースの各回線、すわなち呼制御用
回線と複数の情報回線に対応して同数の無線回線を持つ
他に無線チャネル制御回線用の無線回線を持つ必要があ
った。However, with this conventional communication method using wireless channels,
In addition to having the same number of radio lines for each user/network interface line, that is, a call control line and a plurality of information lines, it was necessary to have a radio line for a radio channel control line.
このため、ユーザ局装置に実装する回路規模が大きくな
り、また基地局装置およびユーザ局装置に複数種類の回
線速度に対応して異なる回路が必要となり、さらに複数
種類の無線チャネルを同時に管理するための機能を持つ
無線チャネル管理機能が必要となる等無線局装置が複雑
となる問題があった。For this reason, the scale of circuits implemented in user station equipment becomes large, different circuits are required for base station equipment and user station equipment to correspond to multiple types of line speeds, and furthermore, it is necessary to manage multiple types of wireless channels simultaneously. There is a problem in that the wireless station equipment becomes complicated, such as requiring a wireless channel management function with the following functions.
本発明は、上述の問題を解決するもので、無線局装置に
必要な回路規模を削減し、経済的な加入者無線チャネル
で構築されたＩＳＤＮの加入者無線通信方式を提供する
ことを目的とする。The present invention solves the above-mentioned problems, and aims to provide an ISDN subscriber wireless communication system that reduces the circuit scale required for wireless station equipment and is constructed using economical subscriber wireless channels. do.
本発明は、加入者線交換機と端末装置との間の加入者伝
送路として、その加入者交換機に接続された基地局装置
とその端末装置に接続された一以上のユーザ局装置との
間が周波数分割された複数の無線チャネルによる通信路
で構成され、情報回線および呼制御回線のほかに無線チ
ャネル制御用回線を有し、上記基地局装置は、この無線
チャネル制御用回線によって上記情報回線および上記呼
制御回線を上記ユーザ局装置からの要求に応じて割当て
制御を行う手段を備えるＩＳＤＮ加入者無線通信方式に
おいて、
上記基地局装置および上記ユーザ局装置には、待機状態
で共通の無線チャネル制御用回線を使用し、起動後はこ
の共通の無線チャネル制御用回線によって指定される他
の無線チャネルに呼制御回線および制御用回線を時分割
多重する手段を含むことを特徴とする。The present invention provides a subscriber transmission line between a subscriber line exchange and a terminal device, and a transmission path between a base station device connected to the subscriber exchange and one or more user station devices connected to the terminal device. It is composed of a communication path using a plurality of frequency-divided radio channels, and has a radio channel control line in addition to an information line and a call control line, and the base station apparatus uses the radio channel control line to In the ISDN subscriber wireless communication system, the ISDN subscriber wireless communication system includes means for controlling the allocation of the call control line in response to a request from the user station device, wherein the base station device and the user station device have a common radio channel control unit in a standby state. The present invention is characterized in that it includes means for time-division multiplexing the call control line and the control line onto other radio channels specified by the common radio channel control line after activation.
本発明の通信方式では、端末装置が接続された複数のユ
ーザ局装置と加入者線交換機に接続される基地局装置と
の間で周波数分割された複数の無線チャネルが使用され
る。In the communication system of the present invention, a plurality of frequency-divided radio channels are used between a plurality of user station devices connected to terminal devices and a base station device connected to a subscriber line exchange.
待機中のユーザ局装置は、上述の無線チャネルのうち共
通の無線チャネル制御回線を使用して、発呼起動または
着信起動を行う。The user station device on standby uses a common radio channel control line among the above-mentioned radio channels to initiate a call or an incoming call.
この共通の無線チャネル制御回線による起動制御によっ
て起動されたユーザ局装置は、共通の無線チャネル制御
回線とは別の無線チャネルがその呼制御回線として割り
当てられ、この割り当てられた呼制御回線を時分割多重
によってＩＳＤＮの呼制御情報の伝送と無線チャネル制
御用情報の伝送に使用する。情報伝送は、この呼制御回
線用に割当られた呼制御回線用チャネルの無線チャネル
制御情報によって設定された他の無線チャネルによって
行われる。The user station equipment activated by the activation control using this common radio channel control circuit is assigned a radio channel different from the common radio channel control circuit as its call control circuit, and uses this assigned call control circuit in a time-sharing manner. It is used to transmit ISDN call control information and radio channel control information by multiplexing. Information transmission is performed using another radio channel set according to the radio channel control information of the call control line channel allocated for this call control line.
次に図面を参照して本発明の詳細な説明する。 Next, the present invention will be described in detail with reference to the drawings.
第１図および第２図は本発明の一実施例の通信方式の構
成を示す図であり、第１図は、ユーザ装置が待機中の場
合、第２図はユーザ装置が起動中の場合の構成を示して
いる。1 and 2 are diagrams showing the configuration of a communication system according to an embodiment of the present invention. FIG. 1 shows the configuration when the user device is on standby, and FIG. 2 shows the configuration when the user device is activated. It shows the configuration.
この実施例では、ユーザ情報回線としてＢ１、Ｂ２チャ
ネルの２回線、呼制御回線としてＤチャネルの１回線が
ＩＳＤＮのユーザ・網インタフエースで規定され、無線
チャネルによる加入者伝送路を構成するために、端末装
置１に接続するユーザ局装置２と、加入者線交換機５に
接続して複数のユーザ局装置２と対向する基地局装置４
とを用い、ユーザ局装置２と基地局装置４との間が複数
の無線チャネル３からなる無線伝送路となる構成として
いる。なあ、基地局装置４に対向するユーザ局装置２は
実際には複数存在するが、本実施例の説明では、単一の
ユーザ局装置２で構成された例で説明している。In this embodiment, two lines, B1 and B2 channels, as user information lines, and one line, D channel, as a call control line are defined in the ISDN user-network interface, and in order to configure a subscriber transmission path using a wireless channel. , a user station device 2 connected to the terminal device 1, and a base station device 4 connected to the subscriber line exchange 5 and facing a plurality of user station devices 2.
The configuration is such that a wireless transmission path consisting of a plurality of wireless channels 3 is established between the user station device 2 and the base station device 4. Incidentally, although there are actually a plurality of user station devices 2 facing the base station device 4, in the description of this embodiment, an example in which the user station device 2 is configured with a single user station device 2 is explained.
本実施例のユーザ局装置２には、ユーザ・網インタフエ
ースの各ユーザ情報回線を扱う処理部があり、それぞれ
、端末装置のＢ１チャネルに対応するＢ１ チャネル処
理部２−１、Ｂ２チャネルに対応するＢ２チャネル処理
部２−２を持っており、端末装置の呼制御チャネルであ
るＤチャネルと、ユーザ局装置２の制御を行うユーザ局
制御部２−４との制御チャネルとの双方の情報を時分割
で扱うＣ／Ｄチャネル処理部２−３とを有している。ユ
ーザ局装置２に対向する基地局装置４はこのユーザ局装
置２の各処理部にそれぞれ対応してＢ１ チャネル処理
部４−１、Ｂ２チャネル処理部４−２、Ｃ／Ｄチャネル
処理部４−３および基地局制御部４−４を有し、Ｃ／Ｄ
チャネル処理部４−３の無線チャネル制御回線は基地局
制御部４−４に接続されており、基地局７１のＢ、ナヤ
ネル処理部、１−１、Ｂ、チャネル処理部４−２からの
情報回線およびＣ／Ｄチ、ネル処理部４−３からの呼制
御回線は加入者線交換機５に収容されており、また、基
地局制御部４−４と加入者線交換機５とは互いに制御線
によって制御されている。The user station device 2 of this embodiment has a processing unit that handles each user information line of the user/network interface, and the B1 channel processing unit 2-1 corresponds to the B1 channel of the terminal device, and the B2 channel corresponds to the B2 channel, respectively. It has a B2 channel processing unit 2-2 that processes information on both the D channel, which is the call control channel of the terminal equipment, and the control channel of the user station control unit 2-4, which controls the user station equipment 2. It has a C/D channel processing section 2-3 that handles time division processing. The base station device 4 facing the user station device 2 has a B1 channel processing section 4-1, a B2 channel processing section 4-2, and a C/D channel processing section 4-, corresponding to each processing section of the user station device 2. 3 and a base station control unit 4-4, and has a C/D
The radio channel control line of the channel processing unit 4-3 is connected to the base station control unit 4-4, and information from the base station 71 B, Nayanel processing unit 1-1, B, and channel processing unit 4-2 is connected to the base station control unit 4-4. The line, C/D channel, and call control line from the channel processing unit 4-3 are accommodated in the subscriber line exchange 5, and the base station control unit 4-4 and the subscriber line exchange 5 are connected to each other through control lines. controlled by.
本実施例の端末装置１と加入者線交換機５との間で交換
される呼制御回線（Ｄチャネル）の信号は、コーサ゛局
装置２のユーザ局制御部２−４と基地局装置４の基地局
制御Ｂ４−４との間で交換される無線チャネル制御回線
（Ｃチャネル）とＣ／Ｄチヤ不／Ｌ処理部２−３．４−
３によって同一無線チャネルが時分割多重されて、多重
化回線として無線チャネル３を使用している。The signal of the call control line (D channel) exchanged between the terminal device 1 and the subscriber line exchange 5 in this embodiment is transmitted between the user station control section 2-4 of the center station device 2 and the base station device 4 of the base station device 4. Radio channel control line (C channel) exchanged with station control B4-4 and C/D channel/L processing unit 2-3.4-
3, the same radio channels are time-division multiplexed, and radio channel 3 is used as a multiplexed line.
なお、端末装置１とユーザ局装置２との間が工ＳＤＮに
おけるユーザ・網インタフエース規定点となっている。Note that the area between the terminal device 1 and the user station device 2 is the user-network interface specified point in the industrial SDN.
次に第３図は、周波数分割された無線チャネルの構成例
を示すものであり、呼制御回線（Ｄチャネル）と無線チ
ャネル制御回線（Ｃチャネル）とを多重化したＣ／Ｄチ
ャネルの回線速度を、情報回線であるＢチャネルの回線
速度と同一とした場合における無線チャネルの周波数配
置の例を示すものである。この第３図において、共用周
波数１０゜２０は、Ｃ／Ｄチャネルとして特定の周波数
が割り当てられていない待ち受は中のユーザ局装置２が
共通に無線チャネル制御回線として使用する周波数であ
り、周波数１１、１３．２１、２３はある端末装置１で
発呼あるいは着呼した場合に、その端末装置１に接続す
るユーザ局装置２にＢチャネル用あるいはＣ／Ｄチャネ
ル用として割り当てて使用される周波数である。Next, Fig. 3 shows an example of the configuration of a frequency-divided radio channel, and shows the line speed of the C/D channel in which a call control line (D channel) and a radio channel control line (C channel) are multiplexed. This figure shows an example of the frequency allocation of radio channels when is set to be the same as the line speed of the B channel, which is an information line. In FIG. 3, the shared frequency 10°20 is a frequency that is commonly used as a radio channel control line by the user station equipment 2 in the standby mode to which a specific frequency is not assigned as a C/D channel. 11, 13. 21, 23 are frequencies that are allocated and used for the B channel or C/D channel to the user station device 2 connected to the terminal device 1 when a call is originated or received at a certain terminal device 1. It is.
次に本実施例通信方式での接続動作を第４図の接続制御
シーケンス図を参照して説明する。Next, the connection operation in the communication system of this embodiment will be explained with reference to the connection control sequence diagram in FIG. 4.
端末装置１が停止状態の場合、ユーザ局装置２は、Ｃ／
Ｄチャネルの受信周波数を共通の制御用無線チャネルで
ある共用周波数１０に設定し、基地局装置４からの制御
信号をＣ／Ｄ処理部２−３が受信できる状態にし、それ
以外の処理部は停止状態におかれている。When the terminal device 1 is in a stopped state, the user station device 2
The reception frequency of the D channel is set to shared frequency 10, which is a common control radio channel, and the C/D processing unit 2-3 is set to be able to receive the control signal from the base station device 4, and the other processing units are It is in a suspended state.
いま、端末装置１が起動されたとすると、ユーザ局装置
２は、ユーザ・網インタフエースで規定された信号（レ
イヤ１起動信号）によりこの起動を検出し、送信周波数
を共用周波数２０として基地局装置４に端末装置１の発
呼を通知する。基地局装置４ではこの通知により、空い
ている個別割当周波数のうち、呼制御回線用として例え
ば周波数２１．３１を共用周波数１０により割り当てる
とともに、加入者線交換機５に端末装置１からの発呼を
通知する。Now, if the terminal device 1 is activated, the user station device 2 detects this activation using a signal (layer 1 activation signal) specified by the user-network interface, and sets the transmission frequency to the shared frequency 20 to the base station device. 4 is notified of the call originating from the terminal device 1. Based on this notification, the base station device 4 allocates, for example, the frequency 21.31 for the call control line among the vacant individually allocated frequencies using the shared frequency 10, and also instructs the subscriber line exchange 5 to initiate a call from the terminal device 1. Notice.
ユーザ局装置２は、共用周波数１０によって割当信号を
受信すると、Ｃ／Ｄチャネルの送受信周波数を割り当て
られた周波数２１．３１に設定しなおす。When the user station device 2 receives the assignment signal on the shared frequency 10, it resets the transmission/reception frequency of the C/D channel to the assigned frequency 21.31.
これにより、端末装置１と加入者線交換機５との間の呼
制御回線が設定されると同時に無線チャネル制御用回線
もその周波数２１．３１を用いて維持される。呼制御回
線が設定されることにより、その回線を使用して端末装
置１と加入者線交換機５との間に呼制御信号が送受信さ
れる。この結果、必要に応じてユーザ情報回線として周
波数２２．３２がこの周波数２１．３１を用いる無線チ
ャネル制御用信号で設定されてユーザ情報の伝送が行わ
れ、あるし）はその回線の開放が、無線チャネル制御用
回線の無線チャイ、ル制御信号によって行われる。この
無線チャネル制御信号は、上述のとおり、呼制御回線用
に設定された周波数２１．３１で呼制御信号と時分割多
重されて基地局装置４との間で送受信される。As a result, a call control line between the terminal device 1 and the subscriber line exchange 5 is set up, and at the same time, a radio channel control line is also maintained using the frequency 21.31. By setting the call control line, call control signals are transmitted and received between the terminal device 1 and the subscriber line exchange 5 using the line. As a result, if necessary, frequency 22.32 is set as a user information line with a radio channel control signal using frequency 21.31, and user information is transmitted. This is done using the wireless channel control signal of the wireless channel control line. As described above, this radio channel control signal is time-division multiplexed with the call control signal at the frequency 21.31 set for the call control line, and is transmitted and received to and from the base station device 4.
端末装置１が停止した場合には、その停止動作信号（レ
イヤ１停止信号）がユーザ局装置２で検出され、ユーザ
局装置２は基地局装置４に対して制御用無線チャネルの
送信用周波数３１によって端末装置１が停止した旨を通
知する。その後、Ｃ／Ｄチャネル処理部２−３の受信周
波数を共用周波数１０に設定し、その他の処理を停止状
態とする。When the terminal device 1 stops, its stop operation signal (layer 1 stop signal) is detected by the user station device 2, and the user station device 2 transmits the transmission frequency 31 of the control radio channel to the base station device 4. to notify that the terminal device 1 has stopped. Thereafter, the reception frequency of the C/D channel processing section 2-3 is set to the shared frequency 10, and other processing is stopped.
この接続制御動作シーケンスが第４図に示されており、
第１図は端末装置１が待機中における共用周波数による
無線チャネル制御用回線での制御信号の伝送を示してお
り、第２図は端末装置が起動中におけるユーザ局装置２
と基地局装置４との間における信号の送受信の状態を示
している。This connection control operation sequence is shown in FIG.
FIG. 1 shows the transmission of control signals on the radio channel control line using the shared frequency when the terminal device 1 is on standby, and FIG. 2 shows the transmission of control signals by the user station device 2 while the terminal device is activated.
It shows the status of signal transmission and reception between the base station device 4 and the base station device 4.
なお、加入者線交換機５からの端末装置１に対する着信
起動も同様な手順によって行うことができ、このンーケ
ンスにより、呼制御回線と無線チャネル制御用回線を多
重化しご使用することが可能である。また、ユーザ局装
置２が待機中における無線チャネル制御用回線のＤチャ
ネル部分の信号は、第１図に示すようにこれをＣ／Ｄチ
ャネル処理部２−３が無視するダミー信号とすることで
、待機中におけるＣチャネルの処理をユーザ局装置２が
待機中であっても同一のＣ／Ｄチャネル処理部２−３を
使用して、Ｃチャネルの処理を行うことが可能である。It should be noted that the activation of incoming calls from the subscriber line exchange 5 to the terminal device 1 can be performed using a similar procedure, and by this sequence, it is possible to multiplex and use the call control line and the radio channel control line. In addition, when the user station device 2 is on standby, the signal of the D channel portion of the radio channel control line is made into a dummy signal that is ignored by the C/D channel processing unit 2-3, as shown in FIG. Even when the user station device 2 is on standby, it is possible to process the C channel using the same C/D channel processing unit 2-3.
さらに、以上の実施例の説明では、固定無線回線を例に
とって説明したが、本発明が、無線チャネルとして衛星
回線を利用し、あるいは移動無線回線を利用しても適用
可能であることはいうまでもない。Furthermore, although the above embodiments have been explained using a fixed wireless line as an example, it goes without saying that the present invention is also applicable to using a satellite line or a mobile wireless line as a wireless channel. Nor.
以上説明したように、起動中のユーザ局装置において、
呼制御回線と無線チャネル制御用回線を同一無線チャネ
ルに時分割多重して使用することで、待機中ユーザ局装
置とは別の無線チャネル制御用回線として使用できるの
で、ユーザ局装置の回路規模を削減することが可能とな
り、経済的なユーザ局装置を構成できる。As explained above, in the starting user station device,
By time-division multiplexing the call control line and the radio channel control line onto the same radio channel, it can be used as a separate radio channel control line from the standby user station equipment, reducing the circuit size of the user station equipment. This makes it possible to configure an economical user station device.
また、多重化した速度をユーザ情報回線と同一の速度に
する場合には、無線変復調回路等として各チャネルごと
に同一種類のものを使用でき、無線チャネルの管理を同
一速度で行うことが可能となるため、無線チャネル制御
機能が簡易化され、無線チャネルの有効利用を図ること
ができる効果が得られる。In addition, if the multiplexed speed is the same as the user information line, the same type of radio modulation/demodulation circuit can be used for each channel, making it possible to manage the radio channels at the same speed. Therefore, the wireless channel control function is simplified and the wireless channel can be used effectively.
の加入者伝送路の構成を示す図。FIG. 3 is a diagram showing the configuration of a subscriber transmission path.
第３図は周波数分割された無線チャネルの構成例を示す
図。FIG. 3 is a diagram showing an example of the configuration of a frequency-divided radio channel.
第４図は本発明実施例の接続制御動作シーケンスを示す
図。FIG. 4 is a diagram showing a connection control operation sequence according to an embodiment of the present invention.
１・・・端末装置、２・・・ユーザ局装置、３・・・無
線チャネル、４・・・基地局装置、５・・・加入者線交
換機。1... Terminal device, 2... User station device, 3... Radio channel, 4... Base station device, 5... Subscriber line exchange.
特許出願人 日本電信電話株式会社、ｒ−１代理人 弁
理士 井 畠 直 孝Patent applicant: Nippon Telegraph and Telephone Corporation, r-1 agent, patent attorney: Naotaka Ibata
第１図は本発明実施例の待機中ユーザ局の場合の加入者
伝送路の構成を示す図。
第２図は本発明実施例の起動中ユーザ局の場合夷■例
通入図
尾 １ 回FIG. 1 is a diagram showing the configuration of a subscriber transmission path in the case of a standby user station according to an embodiment of the present invention. Figure 2 shows an example of the case of a starting user station according to the embodiment of the present invention.
Entrance map tail 1 time
Claims (1)
して、その加入者交換機に接続された基地局装置とその
端末装置に接続された一以上のユーザ局装置との間が周
波数分割された複数の無線チャネルによる通信路で構成
され、 情報回線および呼制御回線のほかに無線チャネル制御用
回線を有し、 上記基地局装置は、この無線チャネル制御用回線によっ
て上記情報回線および上記呼制御回線を上記ユーザ局装
置からの要求に応じて割当て制御を行う手段を備える ＩＳＤＮ加入者無線通信方式において、 上記基地局装置および上記ユーザ局装置には、待機状態
で共通の無線チャネル制御用回線を使用し、起動後はこ
の共通の無線チャネル制御用回線によって指定される他
の無線チャネルに呼制御回線および制御用回線を時分割
多重する手段を含むことを特徴とするＩＳＤＮ加入者無
線通信方式。[Claims] 1. As a subscriber transmission line between a subscriber line exchange and a terminal device, a base station device connected to the subscriber exchange and one or more user station devices connected to the terminal device. The communication path is composed of a plurality of frequency-divided radio channels, and has a radio channel control line in addition to an information line and a call control line. In an ISDN subscriber wireless communication system, the ISDN subscriber radio communication system includes means for controlling the allocation of the information line and the call control line in response to a request from the user station, wherein the base station and the user station have a common terminal in a standby state. The wireless channel control circuit uses a common radio channel control circuit, and after activation, it includes means for time-division multiplexing the call control circuit and the control circuit onto other radio channels specified by the common radio channel control circuit. ISDN subscriber wireless communication system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63159764A JPH029294A (en) | 1988-06-27 | 1988-06-27 | Isdn subscriber radio communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63159764A JPH029294A (en) | 1988-06-27 | 1988-06-27 | Isdn subscriber radio communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH029294A true JPH029294A (en) | 1990-01-12 |
Family
ID=15700757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63159764A Pending JPH029294A (en) | 1988-06-27 | 1988-06-27 | Isdn subscriber radio communication system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH029294A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5325419A (en) * | 1993-01-04 | 1994-06-28 | Ameritech Corporation | Wireless digital personal communications system having voice/data/image two-way calling and intercell hand-off |
| US5469496A (en) * | 1992-03-05 | 1995-11-21 | Bell Atlantic Network Services, Inc. | Personal communications service using wireline/wireless integration |
| US5579379A (en) * | 1992-03-05 | 1996-11-26 | Bell Atlantic Network Services, Inc. | Personal communications service having a calling party pays capability |
| US5621787A (en) * | 1995-09-13 | 1997-04-15 | Bell Atlantic Network Services, Inc. | Prepaid cash card |
| CN103667893A (en) * | 2013-12-06 | 2014-03-26 | 武汉钢铁(集团)公司 | High-strength anti-delayed fracture steel with yield ratio of no more than 0.5 and production method thereof |
-
1988
- 1988-06-27 JP JP63159764A patent/JPH029294A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5469496A (en) * | 1992-03-05 | 1995-11-21 | Bell Atlantic Network Services, Inc. | Personal communications service using wireline/wireless integration |
| US5506887A (en) * | 1992-03-05 | 1996-04-09 | Bell Atlantic Network Services, Inc. | Personal communications service using wireline/wireless integration |
| US5579379A (en) * | 1992-03-05 | 1996-11-26 | Bell Atlantic Network Services, Inc. | Personal communications service having a calling party pays capability |
| US5610972A (en) * | 1992-03-05 | 1997-03-11 | Bell Atlantic Network Services, Inc. | Personal communications service using wireline/wireless integration |
| US5664005A (en) * | 1992-03-05 | 1997-09-02 | Bell Atlantic Network Services, Inc. | Personal communications service using wireline/wireless integration |
| US5325419A (en) * | 1993-01-04 | 1994-06-28 | Ameritech Corporation | Wireless digital personal communications system having voice/data/image two-way calling and intercell hand-off |
| US5657375A (en) * | 1993-01-04 | 1997-08-12 | Ameritech Corporation | Wireless digital personal communications system having voice/data/image two-way calling and intercell hand off provided through distributed logic |
| US5621787A (en) * | 1995-09-13 | 1997-04-15 | Bell Atlantic Network Services, Inc. | Prepaid cash card |
| CN103667893A (en) * | 2013-12-06 | 2014-03-26 | 武汉钢铁(集团)公司 | High-strength anti-delayed fracture steel with yield ratio of no more than 0.5 and production method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0726661B1 (en) | A method of time-slot allocation in a TDMA communication system | |
| US5946306A (en) | Allocation of time slots in a mobile communication system | |
| US4568800A (en) | Multi-channel access (MCA) radio telephone system | |
| JPH09289675A (en) | Radio communication system | |
| JPH0630485B2 (en) | Time division bidirectional transmission method | |
| US5812952A (en) | Method for transmitting voice and data in a communication system | |
| JPH029294A (en) | Isdn subscriber radio communication system | |
| JP2000350252A (en) | Service channel assignment method | |
| KR100256693B1 (en) | Method of sharing the associated control channel of mobile station on the mobile communication system | |
| JPH029295A (en) | Isdn subscriber radio communication system | |
| JPH0728441B2 (en) | Mobile communication switching system | |
| JPH0198359A (en) | Subscriber line concentration communication system | |
| JP2001177465A (en) | Digital wireless speech system | |
| JP2535940B2 (en) | Multi-directional multiplex communication system | |
| JPH0652889B2 (en) | Multi-directional multiplex communication system | |
| JP3350371B2 (en) | Satellite communication control method | |
| JP3359765B2 (en) | Wireless LAN system | |
| JPH10322758A (en) | Isdn service method in multidirectional multiplex communication system | |
| JPH06125324A (en) | Time division multiplex communication system | |
| JP3440927B2 (en) | Multi-way time division multiplexed wireless data communication system and data communication method in this system | |
| JPH04275729A (en) | Digital moving radio communication system and its channel control method | |
| JP2872155B2 (en) | Digital mobile communication system | |
| JPS62104232A (en) | Satellite communication exchange system | |
| JPH04287434A (en) | Incoming call control system | |
| JPH04185122A (en) | Satellite communication system |