JPS5831624A - Radio communication system - Google Patents

Abstract

PURPOSE:To eliminate complicated control, by inserting and connecting a channel controller in common to a plurality of subscriber lines at a subscriber side soon after an exchanger and controlling radio lines centralizingly. CONSTITUTION:An incoming call arrived to an exchanger 1 is given to a base station radio equipment 8 for the callout of the incoming call via a subscriber line, and a line designation request signal is transmitted to a channel controller 7. The channel controller 7 performs the discrimination of frequency assigning district and the pickup and designation of a vacant line and transmits the result to the equipment 8 making the request. The equipment 8 receiving the result transmits the designated radio line number to a mobile station radio equipment 9 via a control line, sets the radio line itself to the designated radio line and waits until a callout response signal is received. In a figure 11, shows a controller for the mobile station side.

Description

[Detailed Description of the Invention] Jin's invention connects a subscriber line and a telephone set using an IWA line, and improves the mobile range of the subscriber with the telephone set, and improves the wireless communication system when the telephone service area is narrow. 'Nowadays, the wireless communication system that allows the user to carry the breaker freely by connecting the subscriber line and the telephone set with a wireless line has a small service area and can be moved to other service areas while continuing to make calls. Each wireless device has multiple wireless circuits.
Since it would be expensive to provide a means for selecting one radio line from among them, the system was such that one radio line was allocated to each subscriber.

The conventional method is shown in Figure 1. A base station radio device 3 is connected to the exchange 1 via a subscriber line 2, and a mobile station radio device (telephone) 4 is connected to the base station radio device 3 via a radio line. Control for setting up a radio channel is performed by radio control devices 5 and 6 located in the base station and mobile station 11, respectively.

In the conventional system, in order to avoid interference, frequencies are allocated in four frequency distribution areas A to D as shown in Figure 2.
A method is used in which the frequency is divided into K and adjacent frequency distribution areas are not allowed to use the same frequency. In this case, areas A, B,
In C and D, different Fa, Pb, Fe, and FdO 4-frequency constant frequency settings are performed. Therefore, in the conventional system in which one wireless device is connected to many subscriber lines within four areas, one radio frequency is required for each subscriber, many radio frequencies, that is, radio lines are required.

In order to solve these drawbacks, this invention provides a channel control device for controlling a number of wireless telephone devices and a plurality of wireless lines to a subscriber #IIK directly connected to an exchange.

It is characterized by being commonly inserted and connected to multiple subscriber lines, and centrally controlling the radio line (by this channel control device),
The purpose of this is to overcome the complexity of control and increase in cost that arise when each radio telephone device performs radio line control discretely.

FIG. 3 shows an embodiment of the invention, in which a channel control device 7 is inserted in common for a plurality of subscribers llI2t~2nK of exchange Ia1. Base station wireless devices 81 to 81 are connected to the terminals of each subscriber 21 to 2n.

Each base station radio device 81-8n is connected to a mobile station radio device 91-9n via a radio line, respectively.

A base station radio control device 10 is separately installed for each of the base station radio devices 81 to 8nKh, and each mobile station radio device 91 to 9 is
A mobile station radio control device 11 is provided for each of n.

In this invention, each wireless device 8t to 8n and 91 to 9n is connected to a dedicated control wireless line and a plurality of communication wireless lines.
The configuration is such that it can be switched to the i1 line.

That is, as shown in the conceptual diagram of the radio line in FIG. TSN-free line group 131 for telephone calls by the designated signal of
The structure is such that it can be switched to a single wireless line of up to 13t. For example, it is assumed that group 01 of the conventional system 04 frequency groups F& to Fd shown in FIG. The switchable frequency group is Fa. This allows multiple subscribers to use multiple wireless lines, resulting in effective use of frequencies.

In addition, the channel control device 7 and the base station side control device 10Ka
A variety of transmitting/receiving devices have been developed for transmitting and receiving radio line control rounding signals via subscriber lines.

The channel control device 7 has the above functions, and
Subscribers 11121 to 2n connected to all the wireless devices in the 4 frequency distribution areas shown in Figure 2 are brought into the channel control device 7 through the subscriber terminals of the exchange, and the radio line groups and numbers are added for each frequency distribution area. When there is a request for wireless line designation from the wireless devices 81 to 8n, the device that monitors and stores the status of the user and the wireless line; A function that identifies a group of wireless lines and extracts an empty wireless line from the identified wireless line group or the transmitted subscriber number and frequency group to which it belongs. It also has a function to reset the status of the device from in use to empty.

Using the embodiment shown in FIG. 3 and the line conceptual diagram shown in FIG. 4, the operation when a call is received from the exchange side to the wireless device will be described with reference to FIG. 5.

It is set as the wireless line control line 12.

The incoming call arrives at the exchange IK at time taK and reaches the base station wireless device 8 via the subscriber line of the called company at time tsi (the base station wireless device 8 detects the called and sends the call via the subscriber line to the base station wireless device 8. A time 1 designation request signal is sent to the channel control device 7.The channel control device 7 constantly monitors signals from all wireless devices, and when it receives No. 11, it performs channel control processing, that is, sends a signal to From the subscriber number of the 9#l#l device, the frequency @ Todoroki region identification, extraction and designation of empty lines are performed, and the processing results are requested by the 9th base station wireless device 8
The time talt is sent to the side via the access line.

At time t4, the base station which received the designation of the radio circuit transmits a paging signal or an incoming call signal and the designated Ku-Kane Kaito Homare number to the mobile station radio device 9 via the mobile control circuit 1111m. At the same time, my wireless 8m was specified! 1 line and waits until a call response signal is received. When the mobile station radio device 9 receives the paging signal and the wireless WAm incense tube, it switches to the designated radio line and transmits the paging response signal to the base station device 8 at time tsi.After that, it checks the loop of the radio line for calling. After that, the ring tone of the mobile station radio device 9 is sounded at time t and a call is made to the subscription 11O.
The telephone number is sent to the telephone exchange 1, and further reaches the calling party, whereupon the call is started, and thereafter the same control as in the company's conventional system is carried out.

In the case of a mobile station-to-device call, as shown in FIG. When the base station radio equipment 8 receives the outgoing call, it requests the channel control unit 7 to designate a wireless line at time tsK in the same way as in the case of an incoming call. It will come true.

After that, the base station wireless device 8 controls the control circuit ill! When the line designation is made to the mobile station radio equipment 9 via the mobile station radio equipment 9, the mobile station also switches to the call line i1 and responds to the call after setting up the routine. After receiving the response signal, the mobile station radio device 9 receives the response signal at time t4.
A dial signal is sent to the base station radio device 8, and the dial signal is sent to the base station radio device 8 so that it is suitable for the exchange 1.
l! After translating, send IK to the exchange. After that, the communication state is established using the same control as in the conventional system. When the call ends, that is, when the call ends, the mobile station unrelated device 9 may call the time tel (
The terminal I-u is transmitted to the base station wireless device 8. When the base station radio device 8 receives the call end signal, it sends a disconnection signal to the mobile station radio device 9, and at the same time, the channel control device 7
A no-same designation cancellation signal is sent to the subscriber line via the subscriber line. When the channel control device 7 receives the signal, it sets the memory of the striped circuit in the channel control device from being in use to an empty state.

As explained above, by introducing a channel control device to intensively monitor wireless lines, extract heat exchanger lines, designate and cancel the designation of wireless lines, it is possible to
Advantages of the wireless telephone device installed in this system are that it can omit the expensive and complicated functions of monitoring multiple wireless lines for setting up wireless lines, extracting and specifying wireless lines, and that effective use of frequencies can be achieved through multi-channel access effects. There is.

In the case of the above-mentioned incoming call, the called detection is performed by the base station wireless device), but the channel control device performs the called detection, extracts the exchanger 11a & 1 line, and sends the wireless line designation signal to the base station. It may also be sent to a wireless device.

[Brief explanation of the drawing]

Figure 1 is a block diagram showing a conventional wireless communication system, Figure 2 is a diagram showing an example of frequency allocation in a conventional wireless system, Figure 3 is a block diagram showing an embodiment of the present invention, and Figure 4 is a diagram showing an example of frequency allocation in a conventional wireless system. Fig. 5 is a diagram showing an example of the jitance in the case of incoming or incoming calls in this inventive system, and Fig. 6 is a conceptual diagram of the incoming or outgoing call in this inventive system. It is a figure which shows the example of a sequence in case. 1: switchboard, 21-b control device, -8, 81-8n: base station radio device, 9.
91-b side control device, 11: mobile station side control device, 12: control radio line, 13, 131-13t: wireless line group for communication. Patent applicant: Takashi Kusano, agent of Nippon Telegraph and Telephone Public Corporation

Claims (1)

[Claims] (1) A 9-channel control device that is commonly inserted between a base station and a line device that are connected in a one-to-one manner with the exchange-joined branch line Vc, and a plurality of subscribers between the seven OTA base stations and the bundled device and the exchange;
Nine mobile station bellless devices are provided on a one-to-one basis with each of the base station radio devices, one dedicated control radio Eta and a plurality of The channel control device includes a means for identifying or managing the subscriber area of multiple subscribers, a means for monitoring and storing the status of the plurality of wireless communications lines, and Specifying the wireless line from the base station wireless device,
In response to a cancellation request, the signal Asahi communication means for designating and canceling a call wireless line and the request for specifying and canceling a radio line and the corresponding signal myaowt-3K are transmitted between the base station wireless equipment and the subscriber. - a means for transmitting and receiving signals via a subscriber line; means for transmitting and receiving a wireless line O designation and a designation request between the mobile station wireless device and the mobile station wireless device via the control wireless line, and switching to the designated wireless 1111 together with the mobile station wireless device; and specifying and canceling wireless lines for calls, monitoring the status of wireless lines between mobile station wireless devices and base station wireless devices of multiple subscribers, and controlling the designation and cancellation of wireless lines as described above. A wireless overconfidence system in which wireless channels are switched centrally in a channel control device using control signals from the channel control device on the base station wireless device and mobile station wireless device lines.