JP2001061187A

JP2001061187A - Wireless data communication method and wireless data communication system

Info

Publication number: JP2001061187A
Application number: JP11237494A
Authority: JP
Inventors: Tomoyoshi Ono; 友義大野; Ryuji Yamamoto; 竜治山本; Hideo Matsuki; 英生松木; Hiroyuki Otsuka; 裕幸大塚
Original assignee: NTT Docomo Inc
Current assignee: NTT Docomo Inc
Priority date: 1999-08-24
Filing date: 1999-08-24
Publication date: 2001-03-06
Anticipated expiration: 2019-08-24
Also published as: JP3668062B2

Abstract

(57)【要約】【課題】無線回線の伝送速度の変化に対応して有線回
線の伝送速度を変化させて無線データ伝送における無線
回線と有線回線の伝送路の利用効率を向上させる無線デ
ータ通信方法および無線データ通信システムを提供す
る。【解決手段】移動局３と無線基地局４間の無線回線の
伝送路の数を増減し、伝送速度の高／低速化を行うとと
もに、無線基地局は基地局側信号処理装置５に高／低速
化要求信号を送出し、基地局側信号処理装置は網側信号
処理装置６に有線回線の伝送速度の高／低速化要求を行
う制御信号を送出し、網側信号処理装置は高／低速化を
示す制御信号を基地局側信号処理装置に送出し、基地局
側信号処理装置は無線基地局に高／低速化を示す制御信
号を送出し、無線基地局と網側信号処理装置間の有線回
線の伝送速度の高速化を行う。 (57) [Summary] [PROBLEMS] Wireless data communication that changes the transmission speed of a wired line in response to a change in the transmission speed of a wireless line to improve the utilization efficiency of the wireless line and the transmission line of the wired line in wireless data transmission. A method and a wireless data communication system are provided. SOLUTION: The number of transmission lines of a radio line between a mobile station 3 and a radio base station 4 is increased / decreased to increase / decrease the transmission speed. The base station-side signal processor sends a control signal for requesting to increase / decrease the transmission speed of the wire line to the network-side signal processor 6, and the network-side signal processor sends a high / low speed signal. The base station side signal processing device sends a control signal indicating high / low speed to the wireless base station, and sends a control signal indicating high / low speed to the radio base station. Increase the transmission speed of the wired line.

Description

DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、複数の無線ゾーン
でサービスエリアを構成する移動通信方式において無線
回線の伝送速度の高速化および低速化に応じてダイナミ
ックに無線基地局とデジタル交換機を接続する有線回線
の伝送速度を可変にする無線データ通信方法および無線
データ通信システムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication system in which a service area is constituted by a plurality of wireless zones, and a wireless base station and a digital exchange are dynamically connected in accordance with the increase and decrease in transmission speed of a wireless line. The present invention relates to a wireless data communication method and a wireless data communication system for making a transmission speed of a wired line variable.

【０００２】[0002]

【従来の技術】従来のＰＨＳのデータ通信システムにお
いては、一旦、３２kbit/sまたは６４kbit/sのデータ通
信が開始された後は、データ伝送速度を変えることはで
きない。これは、ＰＨＳの有線回線部分にＩＳＤＮを利
用しているため、現状のＩＳＤＮでは、通信中の伝送速
度の変更ができないためである。2. Description of the Related Art In a conventional PHS data communication system, once 32 kbit / s or 64 kbit / s data communication is started, the data transmission rate cannot be changed. This is because the transmission rate during communication cannot be changed with the current ISDN because the ISDN is used for the wire line portion of the PHS.

【０００３】ＰＨＳの無線区間にプロトコルを規定して
いる第二世代コードレス電話システム標準規格（RCR ST
D-28 3.2版平成11年２月２日改定社団法人電波産
業会）において、有線回線は、６４kbit/sの伝送速度を
維持したまま、無線回線の伝送速度を可変にするスロッ
ト可変型６４kbit/sデータ通信方法が規定されている。
しかし、本方法では、無線区間は、３２kbit/sから６４
kbit/sへ伝送速度の高速化が行われたり、６４kbit/sか
ら３２kbit/sへ伝送速度の低速化が行われたりするが、
有線区間は、一旦データ通信が開始された後は、上述し
たように、ＰＨＳの有線回線部分にＩＳＤＮを利用して
いるため、通信中の伝送速度の変更は行っていない。[0003] A second generation cordless telephone system standard (RCR ST) that defines a protocol for the PHS radio section.
D-28 Version 3.2 Revised on February 2, 1999 The Association of Radio Industries and Businesses), the wired line is a slot-variable 64 kbit / s that changes the transmission speed of the wireless line while maintaining the transmission speed of 64 kbit / s. s A data communication method is specified.
However, according to the present method, the radio section is from 32 kbit / s to 64 kbit / s.
Although the transmission speed is increased to kbit / s or the transmission speed is decreased from 64 kbit / s to 32 kbit / s,
In the wired section, once data communication is started, as described above, since the ISDN is used for the wired line portion of the PHS, the transmission speed during communication is not changed.

【０００４】[0004]

【発明が解決しようとする課題】現在の移動通信システ
ムにおいてのデータ通信は、ＷＷＷアクセス、電子メー
ル受信等、インターネット等に接続されるものが大半で
ある。このようなデータ通信において、データは、バー
スト的に発生し、常時、確立した無線回線または有線回
線の伝送路上をデータが送受信されている訳ではない。
例えば、ＷＷＷアクセスにおいて、ユーザは、Ｗｅｂブ
ラウザで情報を閲覧している時、伝送路は、確立してい
るが伝送路上で実際のデータは送受信されていない。こ
のような状況では、伝送路の伝送速度の低速化、例えば
ＰＨＳのデータ通信の例では、６４kbit/sのデータ伝送
速度の無線回線が確立している場合は、３２kbit/sのデ
ータ伝送速度の無線回線に切り替えたり、ユーザ端末の
ＰＣへミドルウエア的なものを搭載し、無線回線を解放
しても、上位アプリケーションに対して解放を通知せ
ず、擬似的な接続環境を提供し、ネットワーク側の装置
との協調制御により、無線回線、有線回線の伝送路を一
時解放（伝送速度０kbit/sに等価）したりしないと、無
線回線、有線回線の伝送路の利用効率が低下する問題が
ある。特に、ＰＨＳのデータ通信においては、無線回線
のＴＤＭＡの１スロットの伝送速度が３２kbit/sである
ため、６４kbit/sのデータ通信を行うためには、ＴＤＭ
Ａスロットが２つ必要になり、高速なデータ伝送速度
（例えば、６４kbit/s）を持った無線回線は、低速なデ
ータ伝送速度（例えば、３２kbit/s）を持った無線回線
に比べ、無線資源が多く必要になり、上述のように、デ
ータの送受信が行われていない状態で、高速な伝送速度
を持った無線回線を保持することは、特に、無線資源の
利用効率の著しい低下をもたらす問題が生じる。しかし
ながら、現状のＰＨＳシステムは、ＩＳＤＮを有線網と
して利用しているため、通信中に無線回線および有線回
線の両方に対し、６４kbit/sのデータ伝送速度を３２kb
it/sのデータ伝送速度の伝送路へ切り替えることはでき
ない。Most of the data communication in the current mobile communication system is connected to the Internet or the like, such as WWW access and electronic mail reception. In such data communication, data occurs in bursts, and data is not always transmitted and received on the established transmission line of a wireless line or a wired line.
For example, in WWW access, when a user is browsing information with a Web browser, a transmission path is established, but actual data is not transmitted or received on the transmission path. In such a situation, the transmission speed of the transmission line is reduced, for example, in the case of PHS data communication, when a wireless line with a data transmission speed of 64 kbit / s is established, the data transmission speed of 32 kbit / s is reduced. Even if switching to a wireless line or installing a middleware-like device on the user terminal PC, even if the wireless line is released, it does not notify the upper-level application of the release and provides a pseudo connection environment, providing a network side Unless the transmission line of the wireless line and the wired line is temporarily released (equivalent to the transmission speed of 0 kbit / s) by the cooperative control with the device, there is a problem that the utilization efficiency of the transmission line of the wireless line and the wired line is reduced. . In particular, in PHS data communication, since the transmission speed of one slot of TDMA of a wireless line is 32 kbit / s, to perform 64 kbit / s data communication, TDM is required.
Two A slots are required, and a radio line having a high data transmission rate (for example, 64 kbit / s) has a higher radio resource than a radio line having a low data transmission rate (for example, 32 kbit / s). As described above, maintaining a wireless line with a high transmission rate in a state where data is not transmitted and received, as described above, is a problem that causes a significant reduction in the efficiency of wireless resource utilization. Occurs. However, since the current PHS system uses ISDN as a wired network, a data transmission rate of 64 kbit / s is set to 32 kb for both wireless and wired lines during communication.
It is not possible to switch to a transmission line with a data transmission speed of it / s.

【０００５】無線回線は、多数の移動局で共用している
ため、特にＰＨＳのように、１基地局あたりの無線スロ
ット数が３〜７と小さいシステムでは、通信中に接続先
の無線基地局を切り替えるハンドオーバー時に、ハンド
オーバー先の無線基地局の無線回線に空きスロットが無
い場合、強制的に呼が切断されたりする場合がある。Since a radio line is shared by a large number of mobile stations, especially in a system such as a PHS in which the number of radio slots per base station is as small as 3 to 7, the radio base station to which the radio base station is connected during communication is used. If there is no vacant slot in the wireless line of the wireless base station of the handover destination at the time of handover switching, the call may be forcibly disconnected.

【０００６】例えば、無線スロットを２つ使用し、６４
kbit/sのデータ通信をしている場合、ハンドオーバーが
発生し、ハンドオーバー先の無線基地局の空きスロット
が１つであった場合、６４kbit/sのデータ通信が維持で
きない。そこで、このような問題を解決するために、現
在のＰＨＳの無線区間にプロトコルを規定している第二
世代コードレス電話システム標準規格では、有線区間の
伝送路のデータ伝送速度は、６４kbit/sにしたまま、無
線スロットを２スロットから１スロットへ低減（伝送速
度が６４kbit/sから３２kbit/sへ変化）し、データ通信
を継続するスロット可変型６４kbit/sデータ通信方法が
規定されている。しかしながら、この場合でも、無線区
間の伝送路が３２kbit/sであるのに対して、有線区間の
伝送路は、６４kbit/sの伝送速度を維持したままである
ので、有線回線の利用効率が低下してしまうという問題
点がある。For example, if two radio slots are used and 64
If kbit / s data communication is being performed, handover occurs. If there is one empty slot in the handover destination radio base station, 64 kbit / s data communication cannot be maintained. Therefore, in order to solve such a problem, according to the second generation cordless telephone system standard which defines a protocol in the wireless section of the current PHS, the data transmission speed of the transmission line in the wired section is 64 kbit / s. A slot variable type 64 kbit / s data communication method in which the number of wireless slots is reduced from 2 slots to 1 slot (the transmission speed changes from 64 kbit / s to 32 kbit / s) and data communication is continued, is specified. However, even in this case, while the transmission path in the wireless section is 32 kbit / s, the transmission path in the wired section maintains the transmission speed of 64 kbit / s, so that the utilization efficiency of the wired line is reduced. There is a problem of doing it.

【０００７】本発明は、上記に鑑みてなされたもので、
その目的とするところは、無線回線の伝送路の伝送速度
の変化に対応して有線回線の伝送路の伝送速度を変化す
ることにより無線データ伝送を行う無線回線と有線回線
の伝送路の利用効率を向上させる無線データ通信方法お
よび無線データ通信システムを提供することにある。[0007] The present invention has been made in view of the above,
The purpose is to change the transmission speed of the wired transmission line in response to the change of the transmission speed of the wireless transmission line. It is an object of the present invention to provide a wireless data communication method and a wireless data communication system which improve the wireless communication system.

【０００８】[0008]

【課題を解決するための手段】上記目的を達成するた
め、請求項１記載の本発明は、移動局と無線基地局の間
では無線回線を介し、無線基地局とネットワークの間で
は有線回線を介してデータ伝送を行う無線データ通信シ
ステムにおいて、無線回線および有線回線の両伝送路の
伝送速度を可変とし、一方の伝送速度の変化に対応して
他方の伝送速度も変化することができることを要旨とす
る。In order to achieve the above object, according to the present invention, a mobile station and a wireless base station are connected via a wireless line, and a wired line is connected between the wireless base station and the network. Abstract: In a wireless data communication system that performs data transmission via a transmission line, it is necessary to make the transmission speed of both transmission lines of a wireless line and a wired line variable, and to be able to change the other transmission speed in response to a change in one transmission speed. And

【０００９】請求項１記載の本発明にあっては、無線回
線および有線回線の両伝送路の伝送速度を可変とし、一
方の伝送速度の変化に対応して他方の伝送速度も変化す
ることができるため、無線回線および有線回線の両伝送
路の伝送速度を最適化することができ、伝送路の利用効
率を向上することができる。According to the first aspect of the present invention, the transmission speed of both the transmission line of the wireless line and the transmission line of the wired line is made variable, and the transmission speed of the other line changes in response to the change of one transmission speed. Therefore, it is possible to optimize the transmission speed of both transmission lines of the wireless line and the wired line, and to improve the utilization efficiency of the transmission lines.

【００１０】請求項２記載の本発明は、無線基地局と移
動局の間で無線回線を介し、更に無線基地局に接続され
ている基地局側信号処理装置とデジタル網内のデジタル
交換機に接続されている網側信号処理装置が有線回線を
介して接続され、双方向のデータ通信が行われ、網側信
号処理装置はダイヤルアップルータ装置を介してルータ
装置に接続され、該ルータ装置は専用線を介してＩＰ網
に接続されている別のルータ装置に接続される無線デー
タ通信システムにおいて、前記移動局がＩＰ網に無線基
地局、基地局側信号処理装置および網側信号処理装置を
介してデータの送受信を行っている状態において、前記
移動局から前記無線基地局に対して無線回線の伝送速度
の高速化要求が行われた時、当該移動局と当該無線基地
局との間の無線回線の伝送路の数を増大し、伝送速度の
高速化を行うとともに、当該無線基地局は、有線回線の
制御線を介して基地局側信号処理装置に伝送速度の高速
化要求信号を送出し、当該基地局側信号処理装置は、前
記網側信号処理装置に有線回線の伝送速度の高速化要求
を行う制御信号を送出し、当該制御信号を受信した前記
網側信号処理装置が有線回線の伝送速度の高速化が可能
である場合、当該網側信号処理装置は、伝送速度の高速
化が可能であることを示す制御信号を前記基地局側信号
処理装置に送出し、当該基地局側信号処理装置は、前記
無線基地局に前記制御線を介して伝送速度の高速化が可
能であることを示す制御信号を送出し、当該無線基地局
と前記網側信号処理装置間の有線回線の伝送速度の高速
化を行うことを要旨とする。According to a second aspect of the present invention, a radio base station and a mobile station are connected via a radio line, and further connected to a base station side signal processing device connected to the radio base station and a digital exchange in a digital network. The network-side signal processing device is connected via a wired line, and bidirectional data communication is performed. The network-side signal processing device is connected to a router device via a dial-up router device, and the router device is dedicated. In a wireless data communication system connected to another router device connected to an IP network via a line, the mobile station is connected to the IP network via a wireless base station, a base station side signal processing device, and a network side signal processing device. When the mobile station requests the wireless base station to increase the transmission speed of the wireless link in a state where data is transmitted and received, the wireless communication between the mobile station and the wireless base station is performed. Times The number of transmission paths is increased, and the transmission speed is increased, and the wireless base station sends a transmission speed increase request signal to the base station side signal processing device via a wired line control line, The base station-side signal processing device sends a control signal for requesting an increase in the transmission speed of a wired line to the network-side signal processing device, and the network-side signal processing device that has received the control signal transmits the control signal to the network-side signal processing device. If the speed can be increased, the network-side signal processing device sends a control signal indicating that the transmission speed can be increased to the base station-side signal processing device, and the base station-side signal processing device. The device sends a control signal to the radio base station via the control line indicating that the transmission speed can be increased, and transmits a transmission speed of a wired line between the radio base station and the network-side signal processing device. The point is to speed up the process.

【００１１】請求項２記載の本発明にあっては、移動局
がＩＰ網に無線基地局、基地局側信号処理装置および網
側信号処理装置を介してデータの送受信を行っている状
態において、移動局から無線基地局に対して無線回線の
伝送速度の高速化要求が行われた時、移動局と無線基地
局との間の無線回線の伝送路の数を増大し、伝送速度の
高速化を行い、無線基地局は基地局側信号処理装置に伝
送速度の高速化要求信号を送出し、基地局側信号処理装
置は網側信号処理装置に有線回線の伝送速度の高速化要
求を行う制御信号を送出し、該制御信号を受信した網側
信号処理装置が有線回線の伝送速度の高速化が可能であ
る場合、網側信号処理装置は伝送速度の高速化が可能で
あることを示す制御信号を基地局側信号処理装置に送出
し、基地局側信号処理装置は無線基地局に伝送速度の高
速化が可能であることを示す制御信号を送出し、無線基
地局と網側信号処理装置間の有線回線の伝送速度の高速
化を行うため、無線回線の伝送路の伝送速度の高速化に
対応して有線回線の伝送路の伝送速度を高速化して最適
化でき、有線回線の利用効率を向上することができる。According to the second aspect of the present invention, in a state where a mobile station transmits and receives data to and from an IP network via a radio base station, a base station side signal processing device and a network side signal processing device, When a mobile station requests a wireless base station to increase the transmission speed of a wireless link, the number of transmission lines of the wireless link between the mobile station and the wireless base station is increased to increase the transmission rate. Control, the radio base station sends a transmission speed request signal to the base station signal processing device, and the base station signal processing device requests the network signal processing device to request the network line signal processing device to increase the transmission speed of the wired line. If the network-side signal processing device that sends out the signal and receives the control signal can increase the transmission speed of the wired line, the network-side signal processing device performs control indicating that the transmission speed can be increased. The signal is sent to the base station side signal processing device, and the base station side signal The processing device sends a control signal indicating that the transmission speed can be increased to the wireless base station, and increases the transmission speed of the wired line between the wireless base station and the network-side signal processing device. In response to the increase in the transmission speed of the transmission line, the transmission speed of the transmission line of the wired line can be optimized by increasing the transmission speed, and the utilization efficiency of the wired line can be improved.

【００１２】また、請求項３記載の本発明は、無線基地
局と移動局の間で無線回線を介し、更に無線基地局に接
続されている基地局側信号処理装置とデジタル網内のデ
ジタル交換機に接続されている網側信号処理装置が有線
回線を介して接続され、双方向のデータ通信が行われ、
網側信号処理装置はダイヤルアップルータ装置を介して
ルータ装置に接続され、該ルータ装置は専用線を介して
ＩＰ網に接続されている別のルータ装置に接続される無
線データ通信システムにおいて、前記移動局がＩＰ網に
無線基地局、基地局側信号処理装置および網側信号処理
装置を介してデータの送受信を行っている状態におい
て、前記移動局から前記無線基地局に対して無線回線の
伝送速度の低速化要求が行われた時、当該移動局と当該
無線基地局との間の無線回線の伝送路の数を低減し、伝
送速度の低速化を行うとともに、当該無線基地局は、有
線回線の制御線を介して基地局側信号処理装置に伝送速
度の低速化要求信号を送出し、当該基地局側信号処理装
置は、前記網側信号処理装置に有線回線の伝送速度の低
速化要求を行う制御信号を送出し、当該制御信号を受信
した前記網側信号処理装置は、有線回線の伝送速度の低
速化を示す制御信号を前記基地局側信号処理装置に送出
し、当該基地局側信号処理装置は、前記無線基地局に前
記制御線を介して伝送速度の低速化が可能であることを
示す制御信号を送出し、当該無線基地局と前記網側信号
処理装置間の有線回線の伝送速度の低速化を行うことを
要旨とする。According to a third aspect of the present invention, there is provided a base station side signal processing device connected between a radio base station and a mobile station via a radio line, and a digital exchange in a digital network. The network-side signal processing device connected to is connected via a wired line, and bidirectional data communication is performed.
The network-side signal processing device is connected to a router device via a dial-up router device, and the router device is connected to another router device connected to an IP network via a dedicated line. In a state where the mobile station is transmitting / receiving data to / from the IP network via the radio base station, the base station side signal processing device, and the network side signal processing device, transmission of a radio link from the mobile station to the radio base station. When a request to reduce the speed is made, the number of transmission lines of the radio line between the mobile station and the radio base station is reduced, the transmission speed is reduced, and the radio base station is A transmission speed reduction request signal is transmitted to the base station side signal processing device via the line control line, and the base station side signal processing device requests the network side signal processing device to reduce the transmission speed of the wired line. Do control The network-side signal processing device that has transmitted the control signal and sends the control signal to the base station-side signal processing device, the control signal indicating a reduction in the transmission speed of the wired line, and the base station-side signal processing device. Sends a control signal to the wireless base station via the control line indicating that the transmission rate can be reduced, and adjusts the transmission rate of the wired line between the wireless base station and the network-side signal processing device. The point is to reduce the speed.

【００１３】請求項３記載の本発明にあっては、移動局
がＩＰ網に無線基地局、基地局側信号処理装置および網
側信号処理装置を介してデータの送受信を行っている状
態において、移動局から無線基地局に対して無線回線の
伝送速度の低速化要求が行われた時、移動局と無線基地
局との間の無線回線の伝送路の数を低減し、伝送速度の
低速化を行い、無線基地局は基地局側信号処理装置に伝
送速度の低速化要求信号を送出し、該基地局側信号処理
装置は網側信号処理装置に有線回線の伝送速度の低速化
要求を行う制御信号を送出し、該制御信号を受信した網
側信号処理装置は有線回線の伝送速度の低速化を示す制
御信号を基地局側信号処理装置に送出し、基地局側信号
処理装置は無線基地局に伝送速度の低速化が可能である
ことを示す制御信号を送出し、無線基地局と網側信号処
理装置間の有線回線の伝送速度の低速化を行うため、無
線回線の伝送路の伝送速度の低速化に対応して有線回線
の伝送路の伝送速度を低速化して最適化でき、有線回線
の利用効率を向上することができる。According to the third aspect of the present invention, when the mobile station is transmitting and receiving data to and from the IP network via the radio base station, the base station side signal processing device and the network side signal processing device, When the mobile station requests the wireless base station to reduce the transmission speed of the wireless link, the number of transmission lines of the wireless link between the mobile station and the wireless base station is reduced to reduce the transmission rate. The wireless base station sends a transmission speed reduction request signal to the base station side signal processing device, and the base station side signal processing device requests the network side signal processing device to reduce the transmission speed of the wired line. The network-side signal processing device that has transmitted the control signal and has received the control signal transmits a control signal indicating a reduction in the transmission speed of the wired line to the base station-side signal processing device. A control signal indicating to the station that transmission speed can be reduced. To reduce the transmission speed of the wired line between the wireless base station and the network-side signal processing device, the transmission speed of the wired line transmission line corresponding to the reduced transmission speed of the wireless line transmission line. Can be optimized at a lower speed, and the utilization efficiency of a wired line can be improved.

【００１４】更に、請求項４記載の本発明は、無線基地
局と無線回線を介して接続される移動局、無線基地局に
接続されている基地局側信号処理装置、該基地局側信号
処理装置に有線回線を介して接続されるデジタル網内の
デジタル交換機に接続されている網側信号処理装置、イ
ンターネットなどに接続されているＩＰ網、前記網側信
号処理装置にダイヤルアップルータ装置を介して接続さ
れているルータ装置、および該ルータ装置に専用線を介
して接続されるＩＰ網に接続されている別のルータ装置
を有する無線データ通信システムにおいて、前記移動局
がＩＰ網に無線基地局、基地局側信号処理装置および網
側信号処理装置を介してデータの送受信を行っている状
態において、前記移動局から前記無線基地局に対して無
線回線の伝送速度の高速化要求が行われた時に、当該移
動局と当該無線基地局との間の無線回線の伝送路の数を
増大し、伝送速度の高速化を行うとともに、当該無線基
地局は、有線回線の制御線を介して基地局側信号処理装
置に伝送速度の高速化要求信号を送出し、当該基地局側
信号処理装置は、前記網側信号処理装置に有線回線の伝
送速度の高速化要求を行う制御信号を送出し、当該制御
信号を受信した前記網側信号処理装置が有線回線の伝送
速度の高速化が可能である場合、当該網側信号処理装置
は、伝送速度の高速化が可能であることを示す制御信号
を前記基地局側信号処理装置に送出し、当該基地局側信
号処理装置は、前記無線基地局に前記制御線を介して伝
送速度の高速化が可能であることを示す制御信号を送出
し、当該無線基地局と前記網側信号処理装置間の有線回
線の伝送速度の高速化を行うように構成されていること
を要旨とする。Further, according to the present invention, there is provided a mobile station connected to a radio base station via a radio line, a base station side signal processing apparatus connected to the radio base station, and the base station side signal processing. A network-side signal processing device connected to a digital exchange in a digital network connected to the device via a wired line, an IP network connected to the Internet or the like, and a network connected to the network-side signal processing device via a dial-up router device. In a wireless data communication system having a router device connected to the router device and another router device connected to an IP network connected to the router device via a dedicated line, the mobile station is connected to the IP network by a radio base station. In a state where data transmission / reception is performed via the base station-side signal processing device and the network-side signal processing device, the transmission speed of the radio line from the mobile station to the radio base station When a request for speeding up is made, the number of transmission lines of the radio line between the mobile station and the radio base station is increased, and the transmission speed is increased. A transmission speed increase request signal is transmitted to the base station side signal processing device via the control line, and the base station side signal processing device requests the network side signal processing device to increase the transmission speed of the wired line. When the network-side signal processing device that has transmitted the control signal and received the control signal can increase the transmission speed of the wired line, the network-side signal processing device can increase the transmission speed. To the base station-side signal processing device, and the base station-side signal processing device performs control indicating that transmission speed can be increased to the radio base station via the control line. And sends a signal to said radio base station and said network side signal. It is summarized as being configured to perform the transmission speed of the wired line between physical devices.

【００１５】請求項４記載の本発明にあっては、移動局
がＩＰ網に無線基地局、基地局側信号処理装置および網
側信号処理装置を介してデータの送受信を行っている状
態において、移動局から無線基地局に対して無線回線の
伝送速度の高速化要求が行われた時、移動局と無線基地
局との間の無線回線の伝送路の数を増大し、伝送速度の
高速化を行い、無線基地局は基地局側信号処理装置に伝
送速度の高速化要求信号を送出し、基地局側信号処理装
置は網側信号処理装置に有線回線の伝送速度の高速化要
求を行う制御信号を送出し、該制御信号を受信した網側
信号処理装置が有線回線の伝送速度の高速化が可能であ
る場合、網側信号処理装置は伝送速度の高速化が可能で
あることを示す制御信号を基地局側信号処理装置に送出
し、基地局側信号処理装置は無線基地局に伝送速度の高
速化が可能であることを示す制御信号を送出し、無線基
地局と網側信号処理装置間の有線回線の伝送速度の高速
化を行うため、無線回線の伝送路の伝送速度の高速化に
対応して有線回線の伝送路の伝送速度を高速化して最適
化でき、有線回線の利用効率を向上することができる。According to a fourth aspect of the present invention, in the state where the mobile station transmits and receives data to and from the IP network via the radio base station, the base station side signal processor and the network side signal processor, When a mobile station requests a wireless base station to increase the transmission speed of a wireless link, the number of transmission lines of the wireless link between the mobile station and the wireless base station is increased to increase the transmission rate. Control, the radio base station sends a transmission speed request signal to the base station signal processing device, and the base station signal processing device requests the network signal processing device to request the network line signal processing device to increase the transmission speed of the wired line. If the network-side signal processing device that sends out the signal and receives the control signal can increase the transmission speed of the wired line, the network-side signal processing device performs control indicating that the transmission speed can be increased. The signal is sent to the base station side signal processing device, and the base station side signal The processing device sends a control signal indicating that the transmission speed can be increased to the wireless base station, and increases the transmission speed of the wired line between the wireless base station and the network-side signal processing device. In response to the increase in the transmission speed of the transmission line, the transmission speed of the transmission line of the wired line can be optimized by increasing the transmission speed, and the utilization efficiency of the wired line can be improved.

【００１６】請求項５記載の本発明は、無線基地局と無
線回線を介して接続される移動局、無線基地局に接続さ
れている基地局側信号処理装置、該基地局側信号処理装
置に有線回線を介して接続されるデジタル網内のデジタ
ル交換機に接続されている網側信号処理装置、インター
ネットなどに接続されているＩＰ網、前記網側信号処理
装置にダイヤルアップルータ装置を介して接続されてい
るルータ装置、および該ルータ装置に専用線を介して接
続されるＩＰ網に接続されている別のルータ装置を有す
る無線データ通信システムにおいて、前記移動局がＩＰ
網に無線基地局、基地局側信号処理装置および網側信号
処理装置を介してデータの送受信を行っている状態にお
いて、前記移動局から前記無線基地局に対して無線回線
の伝送速度の低速化要求が行われた時に、当該移動局と
当該無線基地局との間の無線回線の伝送路の数を低減
し、伝送速度の低速化を行うとともに、当該無線基地局
は、有線回線の制御線を介して基地局側信号処理装置に
伝送速度の低速化要求信号を送出し、当該基地局側信号
処理装置は、前記網側信号処理装置に有線回線の伝送速
度の低速化要求を行う制御信号を送出し、当該制御信号
を受信した前記網側信号処理装置は、有線回線の伝送速
度の低速化を示す制御信号を前記基地局側信号処理装置
に送出し、当該基地局側信号処理装置は、前記無線基地
局に前記制御線を介して伝送速度の低速化が可能である
ことを示す制御信号を送出し、当該無線基地局と前記網
側信号処理装置間の有線回線の伝送速度の低速化を行う
ように構成されていることを要旨とする。According to a fifth aspect of the present invention, there is provided a mobile station connected to a radio base station via a radio line, a base station side signal processing device connected to the radio base station, and a base station side signal processing device. A network-side signal processing device connected to a digital exchange in a digital network connected via a wired line, an IP network connected to the Internet, etc., and a connection to the network-side signal processing device via a dial-up router device. In a wireless data communication system having a router device connected to the router device and another router device connected to an IP network connected to the router device via a dedicated line,
In a state where data is transmitted / received to / from a network via a radio base station, a base station side signal processing device and a network side signal processing device, the transmission speed of a radio link from the mobile station to the radio base station is reduced. When the request is made, the number of transmission lines of the radio line between the mobile station and the radio base station is reduced, the transmission speed is reduced, and the radio base station is connected to a control line of a wired line. Sends a request signal to reduce the transmission rate to the base station side signal processing device, and the base station side signal processing device requests the network side signal processing device to reduce the transmission speed of the wire line. The network-side signal processing device that has received the control signal sends a control signal indicating a reduction in the transmission speed of a wired line to the base station-side signal processing device, and the base station-side signal processing device Via the control line to the radio base station. Transmitting a control signal indicating that the transmission rate can be reduced, thereby reducing the transmission rate of a wired line between the radio base station and the network-side signal processing device. Make a summary.

【００１７】請求項５記載の本発明にあっては、移動局
がＩＰ網に無線基地局、基地局側信号処理装置および網
側信号処理装置を介してデータの送受信を行っている状
態において、移動局から無線基地局に対して無線回線の
伝送速度の低速化要求が行われた時、移動局と無線基地
局との間の無線回線の伝送路の数を低減し、伝送速度の
低速化を行い、無線基地局は基地局側信号処理装置に伝
送速度の低速化要求信号を送出し、該基地局側信号処理
装置は網側信号処理装置に有線回線の伝送速度の低速化
要求を行う制御信号を送出し、該制御信号を受信した網
側信号処理装置は有線回線の伝送速度の低速化を示す制
御信号を基地局側信号処理装置に送出し、基地局側信号
処理装置は無線基地局に伝送速度の低速化が可能である
ことを示す制御信号を送出し、無線基地局と網側信号処
理装置間の有線回線の伝送速度の低速化を行うため、無
線回線の伝送路の伝送速度の低速化に対応して有線回線
の伝送路の伝送速度を低速化して最適化でき、有線回線
の利用効率を向上することができる。According to the fifth aspect of the present invention, in a state where a mobile station transmits and receives data to and from an IP network via a radio base station, a base station side signal processing device and a network side signal processing device, When the mobile station requests the wireless base station to reduce the transmission speed of the wireless link, the number of transmission lines of the wireless link between the mobile station and the wireless base station is reduced to reduce the transmission rate. The wireless base station sends a transmission speed reduction request signal to the base station side signal processing device, and the base station side signal processing device requests the network side signal processing device to reduce the transmission speed of the wired line. The network-side signal processing device that has transmitted the control signal and has received the control signal transmits a control signal indicating a reduction in the transmission speed of the wired line to the base station-side signal processing device. A control signal indicating to the station that transmission speed can be reduced. To reduce the transmission speed of the wired line between the wireless base station and the network-side signal processing device, the transmission speed of the wired line transmission line corresponding to the reduced transmission speed of the wireless line transmission line. Can be optimized at a lower speed, and the utilization efficiency of a wired line can be improved.

【００１８】[0018]

【発明の実施の形態】以下、図面を用いて本発明の実施
の形態を説明する。図１は、本発明の一実施形態に係る
無線データ通信システムの構成を示す図である。同図に
示す無線データ通信システムにおいては、データ通信端
末１は、データ通信装置２を介して移動局３に接続さ
れ、移動局３からは無線回線を介して無線基地局４に接
続されるように構成される。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a configuration of a wireless data communication system according to one embodiment of the present invention. In the wireless data communication system shown in FIG. 1, a data communication terminal 1 is connected to a mobile station 3 via a data communication device 2, and from the mobile station 3 is connected to a wireless base station 4 via a wireless line. It is composed of

【００１９】また、無線基地局４からは、基地局側信号
処理装置５、網側信号処理装置６、ダイヤルアップルー
タ装置９、ルータ装置１０、専用線１２、ルータ装置１
１を介してＩＰ網１３に接続されている。また、ＩＰ網
以外に接続される音声呼、Ｅｎｄ−Ｅｎｄで接続される
データ通信呼の接続を可能とするために網側信号処理装
置６からデジタル交換機７を介してデジタル網８へ接続
される。Also, from the radio base station 4, a base station side signal processing device 5, a network side signal processing device 6, a dial-up router device 9, a router device 10, a dedicated line 12, a router device 1
1 is connected to the IP network 13. Further, in order to enable connection of a voice call connected to other than the IP network and a data communication call connected by End-End, the network side signal processing device 6 is connected to the digital network 8 via the digital exchange 7. .

【００２０】なお、上記構成において、データ通信端末
１、データ通信装置２、および移動局３は、本発明の無
線装置を構成するものであるが、この構成においてはデ
ータ通信端末１内にデータ通信装置２が内蔵されていて
もよいし、また、データ通信端末１、データ通信装置２
および移動局３をすべて一装置としてまとめた一体型の
無線装置を構成するものであってもよい。更に、データ
通信端末１に移動局３の機能を内蔵し、例えばＰＤＡの
ような携帯情報端末のように構成してもよいものであ
る。In the above configuration, the data communication terminal 1, the data communication device 2, and the mobile station 3 constitute a radio device of the present invention. In this configuration, data communication is performed within the data communication terminal 1. The data communication terminal 1 and the data communication device 2
The mobile station 3 and the mobile station 3 may be integrated into a single wireless device. Further, the function of the mobile station 3 may be built in the data communication terminal 1 and configured as a portable information terminal such as a PDA.

【００２１】また、無線基地局４は、基地局側信号処理
装置５の機能を内蔵した構造でもよい。同様に、網側信
号処理装置６も、ダイヤルアップルータ装置９の機能を
内蔵し、網側信号処理装置６とルータ装置１０を直接接
続できるような構成でもよいし、更には、ルータ装置１
０の機能を内蔵し、網側信号処理装置を専用線に直接接
続できる構成でもよい。The wireless base station 4 may have a structure in which the function of the base station side signal processing device 5 is built. Similarly, the network-side signal processing device 6 may have a configuration in which the function of the dial-up router device 9 is built-in and the network-side signal processing device 6 and the router device 10 can be directly connected.
0 may be built in and the network side signal processing device may be directly connected to a dedicated line.

【００２２】データ通信端末１は、具体的には、モバイ
ルパソコンを表し、小型で携帯可能なパーソナルコンピ
ュータである。データ通信装置２とダイヤルアップルー
タ装置９との間では、無線回線での通信品質の劣化が発
生しても、両装置に実装されているデータ伝送プロトコ
ルにより高品質にデータ伝送ができる。例えば、データ
伝送プロトコルとしては、平成９年４月にＰＨＳインタ
ーネットアクセスフォーラムで標準化されたＰＩＡＦＳ
（PHS Internet Access Forum Standard；ピアフ）など
がある。The data communication terminal 1 specifically represents a mobile personal computer, and is a small and portable personal computer. Between the data communication device 2 and the dial-up router device 9, even if the communication quality on the wireless line deteriorates, high-quality data transmission can be performed by the data transmission protocol implemented in both devices. For example, as a data transmission protocol, PIAFS standardized by the PHS Internet Access Forum in April 1997
(PHS Internet Access Forum Standard; Piaf).

【００２３】次に、図２を用いて呼接続シーケンスを説
明する。以下、ここで対象にする無線システムは、ＰＨ
Ｓの例で説明する。今、移動局３から音声発信をするこ
とを考える。音声通信のため、データ通信端末１および
データ通信装置２は、ここでは使用しない。ユーザは移
動局３の操作部から通信相手の番号を入力し、通話開始
ボタンを押下する。移動局３から無線基地局４へ無線回
線の確立要求処理を開始し、移動局３と無線基地局４の
間で図２で示すように無線回線を確立する。無線回線の
確立後、移動局３から呼設定信号を送出する。本信号は
呼接続するための信号であり、本信号には、通信相手の
番号だけでなく、呼の種別を表す情報が含まれている。
移動局３から送出された呼設定信号を受信した無線基地
局４は、移動局３へ呼設定受付信号を送出するととも
に、基地局側信号処理装置５へ上記と同様に呼の種別を
表す情報（ここでは音声）が含まれている呼設定信号を
送出する。同様な手順で、基地局側信号処理装置５は網
側信号処理装置６へ呼設定信号を送出する。網側信号処
理装置６は、基地局側信号処理装置５へ返送するととも
に、受信した呼設定信号から呼の種別を表す情報を取り
出す。ここでは、呼の種別は音声であるので、網側信号
処理装置６は、ダイヤルアップルータ装置９ではなく、
デジタル交換機７へ呼設定信号を送出する。更に、呼設
定信号は、デジタル網８を介して、移動局３の通信相手
端末へ送られる。デジタル網８を介して接続されている
移動局３の通信相手端末に着信して呼び出されると、当
該通信相手端末から呼出信号が送出され、当該通信相手
端末が応答すると応答信号が送出される。これらの信号
は、デジタル網８、デジタル交換機７、網側信号処理装
置６、基地局側信号処理装置５、無線基地局４を介し
て、移動局３へ送られ、Ｅｎｄ−Ｅｎｄで伝送路が開通
し、通信が図２に示すように開始される。Next, a call connection sequence will be described with reference to FIG. Hereinafter, the radio system targeted here is PH
An example of S will be described. Now, consider transmitting a voice from the mobile station 3. For voice communication, the data communication terminal 1 and the data communication device 2 are not used here. The user inputs the number of the communication partner from the operation unit of the mobile station 3 and presses a call start button. The mobile station 3 starts a wireless channel establishment request process to the wireless base station 4, and establishes a wireless channel between the mobile station 3 and the wireless base station 4 as shown in FIG. After the establishment of the wireless channel, the mobile station 3 sends a call setting signal. This signal is a signal for call connection, and includes not only the number of the communication partner but also information indicating the type of call.
The radio base station 4 that has received the call setting signal transmitted from the mobile station 3 transmits a call setting acceptance signal to the mobile station 3 and transmits information indicating the type of call to the base station side signal processing device 5 in the same manner as described above. (Here, voice) is transmitted. In a similar procedure, the base station-side signal processor 5 sends a call setup signal to the network-side signal processor 6. The network-side signal processing device 6 returns the information to the base station-side signal processing device 5 and extracts information indicating the type of the call from the received call setting signal. Here, since the call type is voice, the network-side signal processing device 6 is not a dial-up router device 9 but a
A call setting signal is sent to the digital exchange 7. Further, the call setting signal is sent to the communication partner terminal of the mobile station 3 via the digital network 8. When a call arrives at the communication partner terminal of the mobile station 3 connected via the digital network 8 and is called, a call signal is sent from the communication partner terminal, and when the communication partner terminal answers, a response signal is sent. These signals are sent to the mobile station 3 via the digital network 8, the digital exchange 7, the network-side signal processing device 6, the base station-side signal processing device 5, and the radio base station 4, and the transmission path is set at End-End. Upon opening, communication begins as shown in FIG.

【００２４】以上は、音声通信の例であったが、次にデ
ータ通信の例について図３を用いて呼接続シーケンスを
説明する。ここでのデータ通信は、電子メール送受信、
ＷＷＷアクセスに代表されるインターネットアクセスの
ようなＩＰ通信網へ接続するデータ通信を考える。企業
のデータベース装置へ直接アクセスしたり、企業のファ
イルサーバへ直接アクセスするようなＥｎｄ−Ｅｎｄの
データ通信ではない。The above is an example of voice communication. Next, a call connection sequence of an example of data communication will be described with reference to FIG. Data communication here is sending and receiving e-mail,
Consider data communication connecting to an IP communication network such as Internet access represented by WWW access. It is not End-End data communication that directly accesses a database device of a company or a file server of a company.

【００２５】このようなＥｎｄ−Ｅｎｄのデータ通信に
関しては、後述する。Such End-End data communication will be described later.

【００２６】今、データ通信端末１からＩＰ網へ接続す
るデータ通信の発信を行うことを考える。上記音声通信
のような通信相手の端末番号に相当するＩＰ網へ接続す
る着信番号をここでは、仮に１６６とする。ユーザはデ
ータ通信端末１からデータ通信開始のコマンド等を入力
し、データ通信の開始処理を行う。データ通信端末１か
ら送出される呼接続要求信号は、図３に示すように、デ
ータ通信装置２を介して、移動局３へ送られる。当該呼
接続要求信号には、着信番号の情報（ここでは１６６）
と呼の種別を表す情報（ここでは、データ）が設定され
ている。移動局３から無線基地局４へ無線回線の確立要
求処理を開始し、移動局３と無線基地局４の間で無線回
線を図３のように確立する。無線回線の確立後、移動局
３から着信番号の情報と呼の種別を表す情報をデータに
設定し、呼設定信号を送出する。It is now assumed that the data communication terminal 1 originates a data communication for connecting to the IP network. Here, it is assumed that the incoming call number for connecting to the IP network corresponding to the terminal number of the communication partner such as the voice communication is 166 here. The user inputs a data communication start command or the like from the data communication terminal 1 to perform a data communication start process. The call connection request signal sent from the data communication terminal 1 is sent to the mobile station 3 via the data communication device 2 as shown in FIG. The call connection request signal includes information on the called number (here, 166).
(In this case, data) indicating the type of call. The mobile station 3 starts a wireless channel establishment request process to the wireless base station 4, and establishes a wireless channel between the mobile station 3 and the wireless base station 4 as shown in FIG. After the establishment of the wireless channel, the mobile station 3 sets the information of the called number and the information indicating the type of call to data, and sends out a call setting signal.

【００２７】移動局３から送出された呼設定信号を受信
した無線基地局４は、移動局３へ呼設定受付信号を送出
するとともに、基地局側信号処理装置５へ上記と同様に
着信番号の情報（ここでは１６６）と呼の種別を表す情
報（ここではデータ）が含まれている呼設定信号を送出
する。同様な手順で、基地局側信号処理装置５は網側信
号処理装置６へ呼設定信号を送出する。網側信号処理装
置６は、呼設定受付信号を基地局側信号処理装置５へ返
送するとともに、受信した呼設定信号から着信番号の情
報と呼の種別を表す情報を取り出す。ここでは、着信番
号は１６６、呼の種別はデータとなる。網側信号処理装
置６は、着信番号が１６６であり、呼の種別がデータで
あるのを確認するとデジタル交換機７ではなく、ダイヤ
ルアップルータ装置９へ呼設定信号を送出する。ここ
で、呼の種別がデータであっても、着信番号が１６６で
なかった場合は、ＩＰ網へのデータ通信ではなく、Ｅｎ
ｄ−Ｅｎｄのデータ通信であるので、その場合は、音声
の処理と同じように、網側信号処理装置６は、ダイヤル
アップルータ装置９ではなく、デジタル交換機７へ呼設
定信号を送出する。この場合の呼接続シーケンスは、音
声の呼接続と同様になる。以下、ＩＰ網への接続のシー
ケンスの説明を続ける。The radio base station 4 which has received the call setting signal transmitted from the mobile station 3 transmits a call setting acceptance signal to the mobile station 3 and transmits the call number to the base station side signal processor 5 in the same manner as described above. A call setup signal including information (here, 166) and information (here, data) indicating the type of call is transmitted. In a similar procedure, the base station-side signal processor 5 sends a call setup signal to the network-side signal processor 6. The network-side signal processing device 6 returns the call setting acceptance signal to the base station-side signal processing device 5, and extracts the information of the called number and the information indicating the call type from the received call setting signal. Here, the incoming number is 166, and the type of call is data. When confirming that the called number is 166 and the call type is data, the network-side signal processing device 6 sends a call setting signal to the dial-up router device 9 instead of the digital exchange 7. Here, even if the call type is data, if the called number is not 166, it is not data communication to the IP network but En.
Since it is d-End data communication, in that case, the network-side signal processing device 6 sends a call setting signal to the digital exchange 7 instead of the dial-up router 9 in the same manner as the voice processing. The call connection sequence in this case is the same as the voice call connection. Hereinafter, the description of the sequence of connection to the IP network will be continued.

【００２８】呼設定信号を受信したダイヤルアップルー
タ装置９は、呼設定受付信号を送出し、更に応答信号を
送出する。これらの信号は、網側信号処理装置６、基地
局側信号処理装置５、無線基地局４を介して移動局３へ
送られ、更に移動局３は、データ通信装置２を介して、
データ通信端末１へ呼接続完了信号を送出し、データ通
信端末１とＩＰ網１３は、移動局３、無線基地局４、基
地局側信号処理装置５、網側信号処理装置６、ダイヤル
アップルータ装置９、専用線１２を介して接続されてい
るルータ装置１０とルータ装置１１を介して伝送路が開
通し、通信が図３に示すように開始される。The dial-up router device 9 having received the call setting signal sends out a call setting accepting signal and further sends out a response signal. These signals are sent to the mobile station 3 via the network-side signal processing device 6, the base station-side signal processing device 5, and the radio base station 4, and the mobile station 3 further transmits via the data communication device 2,
A call connection completion signal is sent to the data communication terminal 1, and the data communication terminal 1 and the IP network 13 communicate with the mobile station 3, the radio base station 4, the base station side signal processor 5, the network side signal processor 6, the dial-up router. A transmission line is opened via the router 9 and the router 10 and the router 11 connected via the dedicated line 12, and communication is started as shown in FIG.

【００２９】以上述べたように、移動局側から送信され
る呼設定信号を受信した網側信号処理装置６は、当該呼
設定信号の呼の種別と着信番号から判断し、デジタル交
換機７側へ接続するかまたはダイヤルアップルータ装置
９側へ接続するかという呼を振り分ける機能を有してい
る。As described above, the network-side signal processing device 6 that has received the call setting signal transmitted from the mobile station determines from the call type and the called number of the call setting signal, and sends it to the digital exchange 7 side. It has a function of sorting calls for connection or connection to the dial-up router device 9 side.

【００３０】更に、ＩＰ網１３へ接続されるデータ通信
が行われる場合の無線回線確立を図４を用いて詳しく説
明する。今、６４kbit/sの通信を行う場合を考える。移
動局３は、無線基地局４に対して制御チャネル上でＬＣ
Ｈ（ＬｉｎｋＣｈａｎｎｅｌ：リンクチャネル）確立
要求信号を送出する。当該無線基地局４は、通信品質を
満足する無線チャネルの検索を行い、通信品質を満足す
る無線チャネルを前記移動局３に対してＬＣＨ割当信号
で割り当てる。この時点で１スロットの無線回線の伝送
路が確立する。ＰＨＳの場合、１スロットの伝送速度
は、３２kbit/sであるため、６４kbit/sの伝送速度を実
現するためには、無線回線の伝送路を２つ用いなければ
ならない。そのため、もう１スロットの割当を無線基地
局４からしてもらうために、前記移動局３は、無線基地
局４へＴｃｈ（ＴｒａｆｆｉｃＣｈａｎｎｅｌ：通信
チャネル）追加要求信号を送出する。１スロット目と同
様に当該無線基地局４は、通信品質を満足する無線チャ
ネルの検索を行い、通信品質を満足する無線チャネルを
前記移動局３へＴｃｈ追加割当信号で割り当てる。この
ようにして、２つの伝送路を持った６４kbit/sの伝送速
度の無線回線を移動局３と無線基地局４の間で確立する
ことができる。その後は、図３に示したように、有線回
線において、６４kbit/sの伝送路を確立する。Further, establishment of a wireless channel when data communication connected to the IP network 13 is performed will be described in detail with reference to FIG. Now, consider the case of performing 64 kbit / s communication. The mobile station 3 transmits an LC on the control channel to the radio base station 4.
An H (Link Channel) establishment request signal is transmitted. The wireless base station 4 searches for a wireless channel that satisfies the communication quality, and allocates a wireless channel that satisfies the communication quality to the mobile station 3 using an LCH assignment signal. At this point, the transmission path of the one-slot wireless line is established. In the case of the PHS, the transmission speed of one slot is 32 kbit / s. Therefore, in order to realize a transmission speed of 64 kbit / s, two transmission lines of a wireless line must be used. Therefore, the mobile station 3 sends a Tch (Traffic Channel: communication channel) addition request signal to the radio base station 4 in order to have the radio base station 4 allocate another slot. Similarly to the first slot, the radio base station 4 searches for a radio channel that satisfies the communication quality, and allocates a radio channel that satisfies the communication quality to the mobile station 3 using the Tch additional allocation signal. In this manner, a wireless channel having a transmission rate of 64 kbit / s having two transmission paths can be established between the mobile station 3 and the wireless base station 4. After that, as shown in FIG. 3, a 64 kbit / s transmission line is established in the wired line.

【００３１】ここで、本発明の特徴となることは、有線
回線の伝送路が、基地局側信号処理装置５と網側信号処
理装置６の間で、無線回線と同様に、３２kbit/sの単位
で伝送路が分割されていることである。その概念を図５
に示す。ＰＨＳの場合、無線回線は、スロット単位に伝
送路が分割され、スロット単位に無線回線の伝送路であ
る無線チャネルが管理されている。図４のシーケンスを
用いて、上述したように、１スロット毎に、無線回線の
伝送路の割り当てを行い、例えば、６４kbit/sの伝送路
の割り当てを行う場合には、無線基地局は、移動局に対
して２スロットの割り当てを行う。Here, the feature of the present invention is that the transmission path of the wired line is 32 kbit / s between the base station side signal processing device 5 and the network side signal processing device 6 in the same manner as the wireless line. That is, the transmission path is divided in units. Figure 5 shows the concept
Shown in In the case of the PHS, the transmission path of the radio line is divided into slots, and the radio channel, which is the transmission path of the radio line, is managed in each slot. As described above, by using the sequence of FIG. 4, a wireless channel transmission path is allocated for each slot. For example, when a 64 kbit / s transmission path is allocated, the Two slots are allocated to the station.

【００３２】従来の無線回線の伝送路と有線回線の伝送
路の関係を図６に示す。図６に示すように、図５との違
いは、有線回線の伝送路が、図６の場合は、６４kbit/s
であるのに対し、図５の場合は、３２kbit/sの単位で分
割されている。図５のように、無線回線の伝送路と有線
回線の伝送路を１対１に対応させる。このようにするこ
とで、有線回線の伝送路の伝送速度と無線回線の伝送路
の伝送速度が同一になるため、有線回線の利用効率を高
めることが可能になる。以下、その事を詳しく述べる。FIG. 6 shows a relationship between a conventional transmission line of a wireless line and a transmission line of a wired line. As shown in FIG. 6, the difference from FIG. 5 is that the transmission line of the wired line is 64 kbit / s in the case of FIG.
In contrast, in the case of FIG. 5, the data is divided in units of 32 kbit / s. As shown in FIG. 5, the transmission line of the wireless line and the transmission line of the wired line are made to correspond one-to-one. By doing so, the transmission speed of the transmission line of the wired line is equal to the transmission speed of the transmission line of the wireless line, so that the utilization efficiency of the wired line can be improved. The details are described below.

【００３３】今、６４kbit/sのデータ通信が行われてい
る状態で、移動局の移動に伴い、無線ゾーン間のハンド
オーバーが起動されたことを考える。ハンドオーバー先
の無線基地局において、割り当てられる無線回線のスロ
ットが１つしか存在しなかった場合、従来のスロット可
変型６４kbit/sデータ通信方法では、図７に示すような
伝送路の状態になり、無線回線の伝送路の伝送速度が３
２kbit/sであっても、有線回線の伝送路の伝送速度は６
４kbit/sのままであり、有線回線の利用効率が低下す
る。この場合、有線回線の伝送路には、３２kbit/sは、
無線回線の伝送路から受信されたユーザの有意なデータ
が転送されるが、残りの３２kbit/sには、意味のないデ
ータ、例えば、オール（Ａｌｌ）１のようなＤｕｍｍｙ
データが設定される。有線回線の伝送路の伝送速度が変
えられないのは、ＰＨＳの有線網がＩＳＤＮをベースに
しており、ＩＳＤＮ網では、通信中の伝送速度が変えら
れないからである。本発明の方法では、図８に示すよう
に、基地局側信号処理装置５と網側信号処理装置６の間
で、有線回線の伝送路が無線回線の伝送路と同じ３２kb
it/sの単位になっているために、有線回線の利用効率が
向上可能である。Now, it is assumed that a handover between radio zones is started with a movement of a mobile station in a state where data communication of 64 kbit / s is being performed. When only one slot of a wireless channel to be allocated exists in the wireless base station at the handover destination, a conventional slot variable type 64 kbit / s data communication method results in a transmission path state as shown in FIG. , The transmission speed of the transmission line of the wireless line is 3
Even at 2 kbit / s, the transmission speed of the transmission line of the wired line is 6
The rate remains at 4 kbit / s, and the use efficiency of the wired line is reduced. In this case, 32 kbit / s is required for the transmission line of the wired line.
The significant data of the user received from the transmission line of the wireless line is transferred, but the remaining 32 kbit / s contains meaningless data, for example, Dummy such as All (1).
The data is set. The transmission speed of the transmission line of the wire line cannot be changed because the PHS wire network is based on ISDN, and the transmission speed during communication cannot be changed in the ISDN network. In the method of the present invention, as shown in FIG. 8, the transmission line of the wired line between the base station side signal processing device 5 and the network side signal processing device 6 is the same 32 kb as the transmission line of the wireless line.
Since it is in the unit of it / s, the utilization efficiency of the wired line can be improved.

【００３４】以上、ハンドオーバーの時の例を述べた
が、通信中にユーザの伝送するデータ量が変化した場合
について述べる。３２kbit/sのデータ通信中に、データ
量が増加し、伝送速度を高速化する場合について図９を
用いて説明する。ユーザのデータ量が増加したため、移
動局３は、無線回線の伝送速度の高速化を行うために、
無線基地局４へＴｃｈ追加要求の信号を送出する。デー
タ量を測定する手段は、データ通信端末１またはデータ
通信装置２において、ある一定間隔で、データ線のデー
タの通過量を測定することで簡易に実現できる。Ｔｃｈ
追加要求の信号を受信した無線基地局４は、無線回線と
しての所要品質を満足する空き無線スロットを検索し、
所要品質を満足する無線スロットが存在する場合、当該
無線スロットを移動局３へ割り当て、無線回線の伝送路
の数を増加することで、伝送速度の高速化を実現する。
無線基地局４は、空き無線スロットの検索を行うと同時
に、有線回線の制御線を介して、基地局側信号処理装置
５に対して伝送速度高速化要求信号を送出する。基地局
側信号処理装置５は、網側信号処理装置６に対して、伝
送速度高速化要求信号を送出する。本信号を受信した網
側信号処理装置６は、有線回線の伝送速度の高速化が可
能であるかどうか確認し、伝送速度の高速化が可能であ
る場合には、基地局側信号処理装置５に対して伝送速度
高速化完了信号を返信する。ここで言う有線回線の伝送
速度の高速化とは、図８の有線回線の伝送路の伝送速度
を３２kbit/sから、図５に示すように６４kbit/sにする
ことである。In the above, the example at the time of handover has been described. The case where the amount of data transmitted by the user during communication changes will be described. The case where the data amount increases during 32 kbit / s data communication and the transmission speed is increased will be described with reference to FIG. Since the amount of data of the user has increased, the mobile station 3 has to increase the transmission speed of the wireless channel.
A Tch addition request signal is transmitted to the wireless base station 4. The means for measuring the amount of data can be easily realized by measuring the amount of data passing through the data line at certain intervals in the data communication terminal 1 or the data communication device 2. Tch
Upon receiving the addition request signal, the wireless base station 4 searches for an empty wireless slot that satisfies the required quality as a wireless line,
When there is a wireless slot satisfying the required quality, the wireless slot is assigned to the mobile station 3 and the number of transmission lines of the wireless line is increased to realize a higher transmission speed.
The wireless base station 4 searches for a free wireless slot and, at the same time, sends out a transmission speed increase request signal to the base station-side signal processing device 5 via a wired control line. The base station-side signal processing device 5 sends a transmission speed increase request signal to the network-side signal processing device 6. The network-side signal processing device 6 that has received this signal checks whether the transmission speed of the wire line can be increased, and if the transmission speed can be increased, the base station-side signal processing device 5 , A transmission speed increase completion signal is returned. Here, to increase the transmission speed of the wired line means to increase the transmission speed of the transmission line of the wired line of FIG. 8 from 32 kbit / s to 64 kbit / s as shown in FIG.

【００３５】更に伝送路を増加させることにより、更に
高速なデータ通信が実現できる。従来のＰＨＳのデータ
通信方法では、デジタル交換機７の機能の制限で６４kb
it/sの通信が最大速度であったが、本方式では、デジタ
ル交換機７の手前で伝送路を分岐してしまうため、交換
機の機能の制約を受けないデータ通信が可能となる。By further increasing the number of transmission paths, higher-speed data communication can be realized. In the conventional PHS data communication method, the function of the digital exchange 7 is limited to 64 kb.
Although the it / s communication was at the maximum speed, in this system, the transmission path is branched before the digital exchange 7, so that data communication without restrictions on the functions of the exchange is possible.

【００３６】以上の説明は、ユーザ側からの要求による
伝送速度の高速化であったが、網側信号処理装置６から
の要求も可能である。In the above description, the transmission speed has been increased by a request from the user, but a request from the network-side signal processing device 6 is also possible.

【００３７】また、図９のシーケンスにおいて、伝送速
度高速化要求信号は、網側信号処理装置６で終端されて
いるが、終端せずにダイヤルアップルータ装置９まで透
過させるようなシステム構成も可能である。ここでは、
ダイヤルアップルータ装置９は既存の商用品を用いる例
を考えており、網側信号処理装置６とダイヤルアップル
ータ装置９間は、ＩＳＤＮのインタフェースである。そ
のため、基地局側信号処理装置５と網側信号処理装置６
間は、ダイナミックに有線回線の伝送速度が変化する
が、網側信号処理装置６とダイヤルアップルータ装置９
間は、６４kbit/sの伝送速度のままである。ダイヤルア
ップルータ装置９には、３２kbit/sのデータ通信におい
ては、６４kbit/sのデータより３２kbit/sの有意データ
を取り出す機能が具備されており、その識別は、インチ
ャネル信号により可能である。具体的には、ＰＨＳのデ
ータ通信プロトコルのＰＩＡＦＳの機能で提供される。
また、網側信号処理装置６とダイヤルアップルータ装置
９間は、６４kbit/sの伝送速度のままであるので、有線
回線の有効利用にならないように思われるが、本発明の
主たる特徴は、デジタル交換機７と無線基地局４の間の
有線回線の有効利用を目的としているので、本有線回線
から分岐しているローカルな伝送路としての有線回線
は、問題とならない。In the sequence shown in FIG. 9, the request signal for increasing the transmission rate is terminated at the network-side signal processing device 6, but a system configuration in which the signal is transmitted to the dial-up router device 9 without termination is also possible. It is. here,
An example in which an existing commercial product is used as the dial-up router device 9 is considered, and an ISDN interface is provided between the network-side signal processing device 6 and the dial-up router device 9. Therefore, the base station side signal processor 5 and the network side signal processor 6
During the period, the transmission speed of the wired line dynamically changes, but the network side signal processing device 6 and the dial-up router device 9
During that time, the transmission speed remains at 64 kbit / s. The dial-up router device 9 has a function of extracting significant data of 32 kbit / s from data of 64 kbit / s in data communication of 32 kbit / s, and the identification thereof is possible by an in-channel signal. Specifically, it is provided by the function of PIAFS of the data communication protocol of PHS.
Also, since the transmission speed between the network-side signal processing device 6 and the dial-up router device 9 remains at 64 kbit / s, it seems that the wired line is not effectively used. Since the purpose is to effectively use a wired line between the exchange 7 and the wireless base station 4, a wired line as a local transmission line branched from the wired line does not pose a problem.

【００３８】逆に、６４kbit/sのデータ通信中に、デー
タ量が減少し、伝送速度を低速化する場合について図１
０を用いて説明する。ユーザのデータ量が低下したた
め、移動局３は、無線回線の伝送速度の低速化を行うた
めに、無線基地局４へ無線チャネル切断完了の信号を送
出する。この時点で、移動局３と無線基地局４間の無線
回線の無線スロットは解放され、２スロットから１スロ
ットになり、無線回線の伝送路の数が減少することで、
伝送速度の低速化を実現する。無線基地局４は、無線ス
ロットを解放すると同時に、有線回線の制御線を介して
基地局側信号処理装置５に対して伝送速度低速化要求信
号を送出する。基地局側信号処理装置５は、網側信号処
理装置６に対して、伝送速度低速化要求信号を送出す
る。本信号を受信した網側信号処理装置６は、基地局側
信号処理装置５と網側信号処理装置６間の伝送速度の低
速化の処理を行い、基地局側信号処理装置５に対して伝
送速度低速化完了信号を返信する。ここで言う有線回線
の伝送速度の低速化とは、図５の有線回線の伝送路の伝
送速度を６４kbit/sから、図８に示すように３２kbit/s
にすることである。この場合も、網側信号処理装置６か
ら伝送速度の低速化も可能である。Conversely, FIG. 1 shows a case where the amount of data decreases during 64 kbit / s data communication and the transmission speed is reduced.
Explanation will be made using 0. Since the data amount of the user has decreased, the mobile station 3 sends a radio channel disconnection completion signal to the radio base station 4 in order to reduce the transmission speed of the radio channel. At this point, the wireless slot of the wireless link between the mobile station 3 and the wireless base station 4 is released, and the slot is changed from 2 slots to 1 slot.
Achieve lower transmission speed. The radio base station 4 releases the radio slot and, at the same time, sends a transmission speed reduction request signal to the base station side signal processing device 5 via the control line of the wired line. The base station-side signal processing device 5 sends a transmission speed reduction request signal to the network-side signal processing device 6. The network-side signal processing device 6 that has received this signal performs a process of reducing the transmission speed between the base station-side signal processing device 5 and the network-side signal processing device 6 and transmits the signal to the base station-side signal processing device 5. Returns the speed reduction completion signal. Here, the reduction in the transmission speed of the wired line means that the transmission speed of the transmission line of the wired line in FIG. 5 is changed from 64 kbit / s to 32 kbit / s as shown in FIG.
It is to be. Also in this case, the transmission speed can be reduced from the network side signal processing device 6.

【００３９】更に、３２kbit/sのデータ通信中に、デー
タ量が減少した場合は、無線回線の無線スロットを１か
ら０にし、事実上、無線回線を解放し、それに合わせ
て、有線回線の伝送路も解放する。その場合、データ通
信端末１のミドルウエアまたはデータ通信装置２におい
て、無線回線が解放されても、上位レイヤに対して、回
線切断を通知しない仕組みを入れ、更にダイヤルアップ
ルータ装置９または網側信号処理装置６において有線回
線が解放されても、上位レイヤに対して、回線切断を通
知しない仕組みを入れることができれば、データの送受
信が行われないときに、無線回線および有線回線を解放
することができるので、回線利用効率の向上が期待でき
る。Further, when the data amount decreases during the data communication of 32 kbit / s, the wireless slot of the wireless line is changed from 1 to 0, the wireless line is actually released, and the transmission of the wired line is performed accordingly. Free the road. In this case, the middleware of the data communication terminal 1 or the data communication device 2 is provided with a mechanism for notifying the upper layer of the disconnection of the line even if the wireless line is released. If a mechanism that does not notify the upper layer of disconnection of the line even if the wired line is released in the processing device 6 can be introduced, the wireless line and the wired line can be released when data transmission and reception are not performed. It can be expected to improve line utilization efficiency.

【００４０】ルータ装置１０，１１、専用線１２は、ダ
イヤルアップルータ装置９で終端したデータ通信のＩＰ
パケットをＩＰ網１３へ接続するためのものである。デ
ータ通信呼数が少ない場合は、図１１のように、網側信
号処理装置６からＩＳＤＮ等のデジタル回線１５でダイ
ヤルアップルータ装置１４へ接続する形態も考えられ
る。図１の構成は、ＩＰ網１３への接続には、ルータ装
置、専用線を用いてＩＰパケットを伝送しているが、そ
の場合は、図１１と異なり、ＩＰパケットの多重化効果
があるため、トラヒックが高い場合は、図１の方が図１
１の構成よりも回線利用効率が高くなる利点がある。The routers 10 and 11 and the leased line 12 are connected to the IP of data communication terminated by the dial-up router 9.
This is for connecting packets to the IP network 13. In the case where the number of data communication calls is small, as shown in FIG. 11, a form in which the network side signal processing device 6 is connected to the dial-up router device 14 by a digital line 15 such as ISDN is also conceivable. In the configuration of FIG. 1, the connection to the IP network 13 uses the router device and the dedicated line to transmit IP packets. In this case, unlike FIG. 11, there is an IP packet multiplexing effect. , When traffic is high, FIG.
There is an advantage that the line use efficiency is higher than that of the first configuration.

【００４１】[0041]

【発明の効果】以上説明したように、本発明によれば、
無線回線の伝送路の伝送速度の高速化および低速化に対
応して有線回線の伝送路の伝送速度を高速化および低速
化して、無線回線および有線回線の伝送路の伝送速度を
最適化することができるので、伝送路の利用効率を向上
することができ、これによりシステム全体の収容加入者
数の増大および呼の接続率の向上を図ることができ、経
済的なネットワークを構築することができる。As described above, according to the present invention,
Optimizing the transmission speed of wireless and wired transmission lines by increasing and decreasing the transmission speed of wired transmission lines in response to the increase and reduction of the transmission speed of wireless transmission lines. Therefore, the utilization efficiency of the transmission path can be improved, whereby the number of subscribers accommodated in the entire system can be increased and the call connection rate can be improved, and an economical network can be constructed. .

[Brief description of the drawings]

【図１】本発明の一実施形態に係る無線データ通信シス
テムの構成を示す図である。FIG. 1 is a diagram showing a configuration of a wireless data communication system according to an embodiment of the present invention.

【図２】図１の実施形態の無線データ通信システムにお
ける音声呼の接続シーケンスを示す図である。FIG. 2 is a diagram showing a connection sequence of a voice call in the wireless data communication system according to the embodiment of FIG. 1;

【図３】図１の実施形態の無線データ通信システムにお
けるデータ通信呼の接続シーケンスを示す図である。FIG. 3 is a diagram showing a connection sequence of a data communication call in the wireless data communication system of the embodiment of FIG. 1;

【図４】図１の実施形態の無線データ通信システムにお
ける６４kbit/sデータ通信呼の接続シーケンスを示す図
である。FIG. 4 is a diagram showing a connection sequence of a 64 kbit / s data communication call in the wireless data communication system according to the embodiment of FIG. 1;

【図５】図１の実施形態の無線データ通信システムにお
いて６４kbit/sデータ通信における無線回線の伝送路と
有線回線の伝送路の関係を示す図である。FIG. 5 is a diagram showing a relationship between a transmission line of a wireless line and a transmission line of a wired line in 64 kbit / s data communication in the wireless data communication system of the embodiment of FIG. 1;

【図６】従来の無線データ通信システムにおいて６４kb
it/sデータ通信における無線回線の伝送路と有線回線の
伝送路の関係を示す図である。FIG. 6 shows 64 kb in a conventional wireless data communication system.
FIG. 2 is a diagram illustrating a relationship between a transmission line of a wireless line and a transmission line of a wired line in it / s data communication.

【図７】従来の無線データ通信システムにおいて３２kb
it/sデータ通信における無線回線の伝送路と有線回線の
伝送路の関係を示す図である。FIG. 7: 32 kb in a conventional wireless data communication system
FIG. 2 is a diagram illustrating a relationship between a transmission line of a wireless line and a transmission line of a wired line in it / s data communication.

【図８】図１の実施形態の無線データ通信システムにお
いて３２kbit/sデータ通信における無線回線の伝送路と
有線回線の伝送路の関係を示す図である。FIG. 8 is a diagram illustrating a relationship between a transmission line of a wireless line and a transmission line of a wired line in 32 kbit / s data communication in the wireless data communication system according to the embodiment of FIG. 1;

【図９】図１の実施形態の無線データ通信システムにお
いて３２kbit/sから６４kbit/sへデータ通信速度が高速
化する時のシーケンスを示す図である。FIG. 9 is a diagram showing a sequence when the data communication speed is increased from 32 kbit / s to 64 kbit / s in the wireless data communication system of the embodiment of FIG. 1;

【図１０】図１の実施形態の無線データ通信システムに
おいて６４kbit/sから３２kbit/sへデータ通信速度が低
速化する時のシーケンスを示す図である。FIG. 10 is a diagram showing a sequence when the data communication speed is reduced from 64 kbit / s to 32 kbit / s in the wireless data communication system of the embodiment of FIG. 1;

【図１１】本発明の他の実施形態に係る無線データ通信
システムの構成を示す図である。FIG. 11 is a diagram showing a configuration of a wireless data communication system according to another embodiment of the present invention.

[Explanation of symbols]

１データ通信端末２データ通信装置３移動局４無線基地局５基地局側信号処理装置６網側信号処理装置７デジタル交換機８デジタル網９，１４ダイヤルアップルータ装置１０，１１ルータ装置１２専用線１３ＩＰ網１５デジタル回線 Reference Signs List 1 data communication terminal 2 data communication device 3 mobile station 4 wireless base station 5 base station side signal processing device 6 network side signal processing device 7 digital exchange 8 digital network 9, 14, dial-up router device 10, 11, router device 12, dedicated line 13 IP network 15 Digital line

───────────────────────────────────────────────────── フロントページの続き (72)発明者松木英生東京都港区虎ノ門二丁目10番１号エヌ・ティ・ティ移動通信網株式会社内 (72)発明者大塚裕幸東京都港区虎ノ門二丁目10番１号エヌ・ティ・ティ移動通信網株式会社内Ｆターム(参考） 5K034 AA01 DD01 EE03 EE10 EE13 FF10 LL01 MM08 5K067 AA13 BB04 DD57 EE02 EE10 EE16 EE72 HH07 JJ02 ──────────────────────────────────────────────────続き Continuing on the front page (72) Inventor Hideo Matsuki 2-10-1, Toranomon, Minato-ku, Tokyo Inside NTT Mobile Communication Network Co., Ltd. (72) Inventor Hiroyuki Otsuka 2-chome Toranomon, Minato-ku, Tokyo No. 10 No. 1 F-term in NTT Mobile Communication Network Co., Ltd. (reference) 5K034 AA01 DD01 EE03 EE10 EE13 FF10 LL01 MM08 5K067 AA13 BB04 DD57 EE02 EE10 EE16 EE72 HH07 JJ02

Claims

[Claims]

1. A wireless data communication system for performing data transmission between a mobile station and a wireless base station via a wireless line, and data transmission between a wireless base station and a network via a wired line. A wireless data communication method, wherein the transmission speed of a path is variable, and the other transmission speed can be changed according to the change of one transmission speed.

2. A base station-side signal processing device connected to a radio base station via a radio line between a radio base station and a mobile station, and a network side signal processing connected to a digital exchange in a digital network. The devices are connected via a wired line, two-way data communication is performed, the network-side signal processing device is connected to a router device via a dial-up router device, and the router device is connected to an IP network via a dedicated line. In a wireless data communication system connected to another connected router device, the mobile station transmits and receives data to and from an IP network via a wireless base station, a base station side signal processing device, and a network side signal processing device. When the mobile station requests the wireless base station to increase the transmission speed of the wireless link in the state where the mobile station is in the state, the number of transmission paths of the wireless link between the mobile station and the wireless base station is increased. Increase It performs the transmission speed,
The wireless base station sends a transmission speed increase request signal to the base station side signal processing device via a wired line control line, and the base station side signal processing device sends the transmission speed request signal to the network side signal processing device. A control signal for requesting an increase in the transmission speed of the network-side signal processing device, the network-side signal processing device that has received the control signal, if the transmission speed of the wired line can be increased, the network-side signal processing device, A control signal indicating that transmission speed can be increased is sent to the base station side signal processing device, and the base station side signal processing device sends the high speed transmission speed to the wireless base station via the control line. A wireless data communication method comprising: transmitting a control signal indicating that the transmission is possible; and increasing the transmission speed of a wired line between the wireless base station and the network-side signal processing device.

3. A base station side signal processing device connected to a radio base station via a radio line between a radio base station and a mobile station, and a network side signal processing connected to a digital exchange in a digital network. The devices are connected via a wired line, two-way data communication is performed, the network-side signal processing device is connected to a router device via a dial-up router device, and the router device is connected to an IP network via a dedicated line. In a wireless data communication system connected to another connected router device, the mobile station transmits and receives data to and from an IP network via a wireless base station, a base station side signal processing device, and a network side signal processing device. When the mobile station requests the wireless base station to reduce the transmission speed of the wireless channel in the state where the mobile station is in the state, the number of wireless channel transmission paths between the mobile station and the wireless base station is increased. Reduce It performs slow transmission speed,
The wireless base station sends a transmission speed reduction request signal to the base station-side signal processing device via a wired line control line, and the base station-side signal processing device sends the network-side signal processing device a wired line The network-side signal processing device that sends out a control signal for requesting the transmission speed to be reduced, and receives the control signal,
A control signal indicating a reduction in the transmission speed of the wire line is sent to the base station-side signal processing device, and the base station-side signal processing device transmits the control signal to the wireless base station via the control line. A wireless data communication method, comprising transmitting a control signal indicating that the transmission is possible, and lowering a transmission speed of a wired line between the wireless base station and the network-side signal processing device.

4. A mobile station connected to a wireless base station via a wireless line, a base station side signal processing device connected to the wireless base station, and a mobile station connected to the base station side signal processing device via a wired line. A network-side signal processing device connected to a digital exchange in a digital network, an IP network connected to the Internet or the like, a router device connected to the network-side signal processing device via a dial-up router device, and In a wireless data communication system having another router connected to an IP network connected to the router via a dedicated line, the mobile station is connected to a wireless base station, a base station side signal processing device, and a network in the IP network. In a state where data transmission and reception are performed via the side signal processing device, when a request to increase the transmission speed of a wireless line is made from the mobile station to the wireless base station, Increase the number of transmission paths of the radio channel between the mobile station and the radio base station, it performs the transmission speed,
The wireless base station sends a transmission speed increase request signal to the base station side signal processing device via a wired line control line, and the base station side signal processing device sends the transmission speed request signal to the network side signal processing device. A control signal for requesting an increase in the transmission speed of the network-side signal processing device, the network-side signal processing device that has received the control signal, if the transmission speed of the wired line can be increased, the network-side signal processing device, A control signal indicating that transmission speed can be increased is sent to the base station side signal processing device, and the base station side signal processing device sends the high speed transmission speed to the wireless base station via the control line. Wireless data transmitted from the wireless base station and the network-side signal processing device to increase the transmission speed of a wired line. Communications system.

5. A mobile station connected to a wireless base station via a wireless line, a base station side signal processing device connected to the wireless base station, and a mobile station connected to the base station side signal processing device via a wired line. A network-side signal processing device connected to a digital exchange in a digital network, an IP network connected to the Internet or the like, a router device connected to the network-side signal processing device via a dial-up router device, and In a wireless data communication system having another router connected to an IP network connected to the router via a dedicated line, the mobile station is connected to a wireless base station, a base station side signal processing device, and a network in the IP network. In a state where data is transmitted and received via the side signal processing device, when a request to lower the transmission speed of a radio link is made from the mobile station to the radio base station, Reducing the number of transmission paths of the radio channel between the mobile station and the radio base station, performs slow transmission speed,
The wireless base station sends a transmission speed reduction request signal to the base station-side signal processing device via a wired line control line, and the base station-side signal processing device sends the network-side signal processing device a wired line The network-side signal processing device that sends out a control signal for requesting the transmission speed to be reduced, and receives the control signal,
A control signal indicating a reduction in the transmission speed of the wire line is sent to the base station-side signal processing device, and the base station-side signal processing device transmits the control signal to the wireless base station via the control line. A wireless data communication system configured to transmit a control signal indicating that transmission is possible and to reduce a transmission speed of a wired line between the wireless base station and the network-side signal processing device. .