JPH09200113A - Personal handyphone system, its ratio repeater and radio terminal equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize the utilizing form desired by the user and to extend the utility range by using the radio repeater so as to relay a radio wave from a public base station. SOLUTION: A public communication network 1 has a position registration database 3 and is connected to a general subscriber telephone set 5 and public base stations 7A-7C with wired lines. The public base stations 7A-7C make communication with an optional PHS terminal 13. Furthermore, the public base station 7A is connected to a radio repeater 9 via a radio channel with a public radio frequency f1 , and the radio repeater 9 is connected to a PHS terminal 11 via a radio channel with a radio frequency f3 . Information the same as that sent from the public base station 7A with the public radio frequency f1 is relayed to a PHS terminal 11 by using a private radio frequency f3 and information the same as that sent from the PHS terminal equipment 11 with the public radio frequency f3 is relayed to the public base station 7A by using the private radio frequency f1 .

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a personal handyphone system (hereinafter abbreviated as "PHS"), in particular, a radio relay device is used to relay radio waves from a public base station so that the PHS in a predetermined area such as indoors. The present invention relates to a PHS, a wireless relay device and a wireless terminal device for expanding the PHS usage area.

[0002]

2. Description of the Related Art Conventionally, in wireless communication, the same information as the information transmitted from a public base station through a wireless relay device via a public radio frequency is amplified and relayed to a terminal side using the public radio frequency. However, there is a wireless relay system that amplifies and relays the same information as the information transmitted from the terminal on the public wireless frequency to the public base station side using the public wireless frequency.

In PHS, the radio frequency band of 1.9 GHz is used, and in principle, different frequency bands are assigned to the public radio frequency and the private radio frequency in order to ensure frequency utilization efficiency. ing.

[0004]

However, in the conventional radio relay system, when the public radio base station side and the radio terminal device side use the public radio frequency, the radio relay device becomes a public telecommunications facility. Therefore, maintenance and monitoring are required as a public company, and the user cannot purchase and manage the wireless relay device. Therefore, it is difficult to desire a sufficient installation of the wireless relay device.

In addition, in the conventional wireless relay system, since the wireless relay device does not have a registration function, it is not possible to register the wireless terminal device that uses the wireless relay device. Even if the relay device can be purchased, there is a problem that the use of the wireless relay device cannot be limited to a specific wireless terminal device and effective use cannot be measured.

The present invention has been made in view of the above problems, and provides a PHS capable of expanding a use range by realizing a use form desired by a user, a wireless relay device thereof, and a wireless terminal device. With the goal.

[0007]

In order to achieve the above-mentioned object, the personal handyphone system of the invention according to claim 1 of the present invention is connected to a public base station via a wireless relay device. Converts the communication using the public radio frequency to the communication using the private radio frequency and transmits the communication to the wireless terminal device, and converts the communication using the private radio frequency with the wireless terminal device to the communication using the public radio frequency and the public. The point is to transmit to the base station. That is, the present invention relays the same information as the information transmitted from the public base station on the public radio frequency to the wireless terminal device side using the private radio frequency and transmits from the wireless terminal device on the private radio frequency. The most important feature is to relay the same information as the received information to the public base station side using the public radio frequency.

According to a second aspect of the invention, in the configuration of the first aspect of the invention, the corresponding wireless terminal device or wireless relay device is registered in at least one of the wireless relay device and the wireless terminal device. The point is to have a function.

The radio relay apparatus according to the third aspect of the present invention is between a base station communication means for performing communication with a public base station using a public radio frequency and a radio terminal device. To the terminal communication means for carrying out the communication by the private radio frequency and the communication by the public radio frequency received from the public base station to the communication by the private radio frequency, and by the private radio frequency from the wireless terminal device. The gist of the present invention is to have a conversion means for converting communication into communication using public radio frequency.

According to a fourth aspect of the present invention, in addition to the configuration of the third aspect of the invention, a registration means for registering a wireless terminal device that can use the wireless relay device and a receiving means for receiving via the terminal communication means are provided. Control means is added for performing communication only when the registered communication is from the wireless terminal device registered by the registration means or only from the wireless terminal device registered by the registration means. Is the gist.

In the invention according to claim 5, the registration means according to claim 4 completes the registration of the wireless terminal device to the first communication network of the wireless terminal device via the wireless relay device. The main point is to do.

Further, the invention according to claim 6 is based on claim 3,
In the configuration of the invention described in any one of 4 and 5, a communication channel to another public base station transmitted from the public base station when the communication quality during communication with the public base station deteriorates. The gist is that a means for ignoring the switching instruction signal is added.

The invention according to claim 7 is the configuration of the invention according to any one of claims 3 to 6 when the communication is performed with the public base station or the wireless terminal device. The gist is that the scrambled information bits and CRC bits in the slot are relayed without descrambling.

That is, a CRC code error between the public base station and the wireless relay device or between the wireless relay device and the wireless terminal device is directly transmitted to the wireless relay device and the wireless terminal device or between the wireless relay device and the public base station. Characterize.

In the wireless terminal device of the invention according to claim 8 of the present invention, the communication between the registration means for performing the registration for specifying the usable wireless relay device and the wireless relay device is a private radio. The gist of the present invention is to have a communication unit that performs communication by frequency and a control unit that performs communication when the communication received via this communication unit is from the wireless relay device registered by the registration unit.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a schematic configuration of a PHS system including a wireless relay device to which the present invention is applied. In FIG. 1, the public communication network 1 has a location registration database 3, a general subscriber telephone 5, a public base station 7A,
7B and 7C are connected by wire. These public base stations 7
A, 7B, 7C can communicate with any PHS terminal 13. The public base station 7A is connected to the wireless relay device 9 via a wireless line having a public wireless frequency f1, and the wireless relay device 9 is connected to a PHS terminal 11 via a wireless line having a private wireless frequency f3. . In addition, for example, the public base station 7C uses the public wireless frequency f2 to connect to the PH
It is connected to the S terminal 13 and communicates. Thereby, in a normal communication mode, the PHS terminal 13 can communicate with the general subscriber telephone 5 or another PHS terminal or the like via the public base station 7C connected to the public communication network 1.

Next, an example of the configuration of the wireless relay device 9 shown in FIG. 1 will be described with reference to FIG. The wireless relay device 9 shown in FIG. 2 includes a control unit 91, a memory 93, and a PHS via a bus.
Terminal number registration memory 95, PHS terminal communication function unit 9
7. Signal processing unit 99 and public base station communication function unit 101
Are connected to each other. At this time, the PHS terminal communication function unit 97 and the signal processing unit 99, and the signal processing unit 99 and the public base station communication function unit 101 are directly connected. The control unit 91 is provided with a mode changeover switch 103. Further, the wireless relay device 9 is provided with a power supply 105 for supplying electric power to the above respective parts.

Next, the operation of each block will be described. First, the control unit 91 controls the operation of each block via the bus. In addition to control related to normal communication, for example, it is determined whether the input communication is from the PHS terminal 11 registered in the PHS terminal number registration memory 95. Further, for example, the wireless relay device 9 is changed to a registration mode described later in accordance with an input from the mode changeover switch 103 and an input unit (not shown), or a PHS terminal number registration process in the registration mode is performed.

The memory 93 stores a program for controlling the control section 91, for example. Also,
The PHS terminal number registration memory 95 stores and registers the PHS terminal number input in the registration mode.

The PHS terminal communication function unit 97 communicates with the PHS terminal 11 via a wireless line of the private radio frequency f3, and the public base station communication function unit 101 transmits via the public radio frequency f1 of the radio line. Communication with the public base station 7A. Also, the communication signal processing unit 99 is
Private-use radio frequency f3 received by S terminal communication function unit 97
Communication of the public radio frequency f1 from the public base station communication function unit 101 to the public radio frequency f1 and the communication of the public radio frequency f1 received to the public base station communication function unit 101 without changing the contents. PH without changing
The S terminal communication function unit 97 processes so as to transmit from the private radio frequency f3.

Next, an example of the configuration of the PHS terminal 11 shown in FIG. 1 will be described with reference to FIG. In the PHS terminal 11 shown in FIG. 3, the control unit 111, the memory 113, the wireless relay device number registration memory 115, the communication function unit 117, and the signal processing unit 119 are mutually connected via a bus. Control unit 111
Is provided with a mode changeover switch 123. Further P
The HS terminal 11 includes a power source 125 such as a battery for supplying electric power to each of the above parts, and a microphone 12 for inputting voice.
7, an input key 129 for inputting a telephone number and the like, a speaker 131 for outputting a voice and the like are provided.

The control unit 111 controls the operation of each block via the bus. In addition to control related to normal communication, for example, it is determined whether the input communication is from the wireless relay device 9 registered in the wireless relay device number registration memory 115. Further, for example, the PHS terminal 11 is changed to a registration mode described later in accordance with an input from the mode changeover switch 123 and an input unit, for example, an input key 129, or a wireless relay device number registration process in the registration mode is performed. .

The memory 113 stores, for example, a program for controlling the control section 111. In addition, the wireless relay device number registration memory 115 stores and registers the wireless relay device number input in the registration mode.

The communication function unit 117 uses the private radio frequency f3.
The communication with the wireless relay device 9 is performed via this wireless line. In addition, the communication signal processing unit 119 includes the communication function unit 1
The signal processing of the communication of the private radio frequency f3 received and transmitted at 17 is performed.

The mode selector switch 123 switches the operating state of the PHS terminal 11 to the registration mode, as described above. This mode changeover switch 123 is
As long as it is for switching the operating state,
In addition to the case where the mode switching key is provided independently, a single key among the input keys 129 may be assigned, or a combination of a plurality of keys may be used, and further, a switching signal from the wireless relay device 9 may be used. It goes without saying that it may be switched.

The PHS terminal 11 is required to operate in a private mode in which communication is carried out using the private radio frequency f3.
The operation is different from the public mode using 1.

Next, a first embodiment according to the present invention will be described based on the above configuration. In FIG. 1, the public base station 7A has only to have the same function as the conventional public base station 7C, and the wireless relay device 9 has a public radio frequency f.
It has a communication function with the public base station 7A using 1 and a communication function with the PHS terminal 11 using the private radio frequency f3. The radio interface with the public base station using the public radio frequency f1 is a standard (RCR / STD-2).
It follows the public standard part of 8). On the other hand, the wireless interface with the PHS terminal 11 using the private radio frequency f3 complies with the private standard part of the standard (RCR / STD-28).

Next, a PHS that can be used for the wireless relay device 9
Registration of the terminal 11 will be described. As described above, the PHS that is associated with the wireless relay device 9 is included in the wireless relay device 9.
A PHS terminal number registration memory 95 for registering the PHS terminal number of the terminal 11 is provided. PHS for registration
PHS telephone number unique to terminal 11, PS-of PHS terminal
ID etc. are used. Further, in order to register the usable PHS terminal 11, the wireless relay device 9 has a registration mode in addition to a mode for carrying out a normal call, and operates the mode changeover switch 103 to register the wireless relay device 9 before the start of use. Mode, and the PHS terminal 11 to be registered is connected to the wireless relay device 9
Register by connecting to, for example, by wire.

Next, a second embodiment in which this registration is performed without wired connection will be described. In this case, it is performed when the location of the PHS terminal is registered in the communication network. That is, although the PHS supports the incoming call function, the location registration database 3 is provided in the public communication network 1 for that purpose as shown in FIG.

First, a normal position registration sequence will be described with reference to FIG. The location registration is performed by using a certain area (location registration area) as one unit, and normally when the PHS terminal 13 moves from one location registration area to another location registration area, the PHS terminal 13 is located in the public communication network 1. Send a registration request. Public base station 7C is PHS terminal 1
When the location registration request signal received from the public communication network 1 is transmitted to the public communication network 1 and the location registration database 3 in the public communication network 1 is normally registered, it is determined that the location registration request signal is normally registered from the public communication network 1. The signal is returned to the public base station 7C.

Next, the sequence in this embodiment will be described with reference to FIG. Mode changeover switch 1
03 is operated to set the wireless relay device 9 in the registration mode, and similarly, the mode changeover switch 123 is operated to set the PHS terminal 11 in the registration mode. When the PHS terminal 11 is set to the registration mode, the PHS terminal 11 first transmits a position registration request signal. The wireless relay device 9 sends out the location registration request signal to the public communication network 1 via the public base station 7, and receives the location registration normal end signal from the public communication network 1 via the public base station 7, The PHS number or PS-ID of the PHS terminal 11 is recorded in the PHS terminal number registration memory 95.

Subsequently, the wireless relay device 9 sends a position registration normal end signal to the PHS terminal 11, and when the PHS terminal 11 receives the position registration normal end signal, the wireless relay device number registration memory 115 of the PHS terminal 11 is received. The ID of the wireless relay device 9 is registered in. After this registration is completed, PHS
The terminal 11 can communicate with the other PHS terminal 13 and the general subscriber telephone 5 only through the single or plural wireless relay devices 9 registered in itself. Similarly, the wireless relay device 9 communicates with only one or a plurality of PHS terminals 11 registered in itself. Since the wireless relay device 9 is normally fixed and used, the public base station with which the wireless relay device 9 communicates is fixed. In addition, between the location registration request and the location registration normal end, the public communication network 1
The authentication request signal is output from the PHS terminal 11 and the authentication response signal is output from the PHS terminal 11 in response to this, but this timing may be after the registration processing.

Next, a third embodiment of the present invention will be described. In the normal PHS communication mode, when the quality of communication between the public base station 7C and the PHS terminal 13 is deteriorated due to the movement of the PHS terminal 13, the public base station 7C transmits the PHS to the PHS.
A channel switching (handover) instruction signal during communication to another public base station is transmitted to the terminal 13.

P receiving the channel switching instruction signal during communication
The HS terminal 13 searches for a public base station with a high reception level,
Connection is made in such a manner that a call is made to the public base station (call recall type handover).

On the other hand, the wireless relay device 9 is fixedly installed indoors or the like and does not move, but the communication quality between the public base station 7A and the wireless relay device 9 deteriorates depending on the radio wave propagation condition. Sometimes. In such a case, the public base station 7A outputs the in-communication channel switching instruction signal as in the normal case, but the wireless relay device 9 constantly selects the public base station 7A having a high reception level. It is not necessary to search other public base stations because they are communicating with each other.
Therefore, it is possible to avoid transmitting and receiving unnecessary signals by ignoring the in-communication channel switching instruction signal from the public base station 7A in this case.

Next, a fourth embodiment of the present invention will be described. In normal PHS communication, scrambling processing is performed on the information bit (I frame portion) and the CRC bit in the communication physical slot transmitted between the public base station 7C and the PHS terminal 13 to the public base station 7C and the PHS terminal. 1
3 and transmits to the PHS terminal 13 and the public base station 7C, respectively, and scrambled information bits and C
The PHS terminal 13 and the public base station 7C that have received the RC bit are performing the descrambling process. FIG. 5 shows the configuration of the communication physical slot defined by the PHS standard (RCR / STD-28).

In the wireless relay device 9 of the fourth embodiment, the scrambled information bits and CRC bits received from the public base station 7A and the PHS terminal 11 are not descrambled, and the PHS terminal 11 and the public base station are directly processed. Even if it is transmitted to the station 7A, the PHS terminal 11 and the public base station 7A
It is possible to perform the descramble processing by the descramble processing function originally possessed by the. The wireless relay device 9 does not require the scramble processing function and the descramble processing function, so that the device configuration can be simplified by applying the fourth embodiment.

In the above embodiment, the case where the public radio frequency band and the private radio frequency band are completely different has been described as an example, but the present invention is not limited to this, for example, 1900. .550 to 1905.95
Similarly, it can be appropriately applied to a band for shared communication for private use and outdoor public such as 0 MHz.

[0039]

As described above, the personal handyphone system according to the first aspect of the present invention is
Through the wireless relay device, the communication by the public radio frequency with the public base station is converted into the communication by the private radio frequency and transmitted to the wireless terminal device, and the private radio frequency with the wireless terminal device is also transmitted. Since the communication according to the above is converted into the communication according to the public radio frequency and transmitted to the public base station, the usage pattern desired by the user can be realized and the usage range can be expanded.

The invention according to claim 2 has a function of registering a corresponding wireless terminal device or wireless relay device in at least one of the wireless relay device and the wireless terminal device. It becomes possible to clarify the affiliation relationship with the relay device.

The wireless relay device according to the third aspect of the present invention includes a base station communication means for performing communication by a public radio frequency, a terminal communication means for performing a private radio frequency, and a public radio frequency communication. To a private-use radio frequency, since it has a conversion means for converting the communication by the private-use radio frequency into the communication by the public radio frequency,
It is possible to realize the usage form desired by the user and expand the usage range.

In the invention according to claim 4, a registration means for registering a wireless terminal device that can use the wireless relay device and a communication received via the terminal communication means are registered by the registration means. Since it has the control means for communicating when it is from the wireless terminal device, it is possible to reliably communicate only with the wireless terminal device corresponding to itself.

According to the invention of claim 5, the registration of the wireless terminal device is performed by completing the position registration of the wireless terminal device to the first communication network via the wireless relay device. In this case, it is not necessary to connect the wireless terminal device and the wireless relay device by wire.

Further, the invention according to claim 6 adds a means for ignoring the communication channel switching instruction signal when the communication quality during communication with the public base station is deteriorated, so that the temporary communication is performed. It is possible to perform stable communication without being affected by the deterioration of the environment. Further, according to the invention described in claim 7, since the wireless relay device relays without descramble processing, the configuration can be simplified.

In the wireless terminal device of the invention according to claim 8 of the present invention, the communication between the registration means for performing the registration for specifying the available wireless relay device and the wireless relay device is for the private radio. Since it has the communication means for performing the frequency and the control means for performing the communication when the communication received through the communication means is from the wireless relay device registered by the registration means, It is possible to perform communication via the wireless relay device corresponding to itself.

As described above, according to the present invention, it is possible to widen the range in which the radio waves from the public base station reach, register the usable terminals by a simple procedure, and reduce unnecessary signal processing. It is possible to realize a simple device configuration.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a PHS system to which the present invention is applied.

FIG. 2 is a block diagram showing a configuration of a wireless relay device according to the present invention.

FIG. 3 is a block diagram showing a configuration of a PHS terminal according to the present invention.

FIG. 4 shows a location registration sequence according to the second embodiment of the present invention.

FIG. 5 is a diagram showing a configuration of a communication physical slot.

FIG. 6 is a diagram showing a normal location registration sequence.

[Explanation of symbols]

 1 Public Communication Network 3 Location Registration Database 5 General Subscriber Phone 7 Public Base Station 9 Wireless Relay Device 11, 13 PHS Terminal 91, 111 Control Unit 93, 113 Memory 95 PHS Terminal Number Registration Memory 97 vs. PHS Terminal Communication Function Unit 99, 119 Signal processing unit 101 Communication function unit for public base station 103, 123 Mode change switch 105, 125 Power supply 115 Wireless relay device number registration memory 117 Communication function unit 127 Microphone 129 Input key 131 Speaker

Claims (8)

[Claims] 1. A communication with a public base station via a wireless relay device at a public radio frequency is converted into a communication at a private radio frequency to be transmitted to a wireless terminal device, and the communication with the wireless terminal device is also performed. A personal handy phone system characterized by converting the communication by the radio frequency for private use to the communication by the radio frequency for public and transmitting the communication to the public base station. 2. At least the wireless relay device has a function of registering a corresponding wireless terminal device, or the wireless terminal device has a function of registering a corresponding wireless relay device. The personal handyphone system according to claim 1, wherein: 3. A base station communication means for communicating with a public base station by a public radio frequency, and a terminal communication means for communicating with a wireless terminal device by a private radio frequency received. Having a conversion means for converting the communication from the public base station by the public radio frequency into the communication with the private radio frequency and the conversion from the communication with the private radio frequency from the wireless terminal device to the communication with the public radio frequency A wireless relay device. 4. Registration means for registering a wireless terminal device capable of using the wireless relay device, and communication received via the terminal communication means from the wireless terminal device registered by the registration means. The wireless relay device according to claim 3, further comprising a control unit that performs communication at a certain time. 5. The registration means performs registration of a wireless terminal device by completion of position registration of the wireless terminal device in a first communication network via the wireless relay device. Wireless relay device. 6. A means for ignoring a communication channel switching instruction signal transmitted from the public base station to another public base station when the communication quality during communication with the public base station deteriorates. The wireless relay device according to claim 3, 4 or 5, wherein 7. A scrambled information bit and a CRC bit in each slot when communicating with the public base station or the wireless terminal device are relayed without descramble processing. The wireless relay device according to any one of claims 3 to 6. 8. A registration unit that performs registration for specifying a wireless relay device that can be used, a communication unit that communicates with the wireless relay device by a private radio frequency, and a communication unit that is received via this communication unit. And a control unit that performs communication when the communication is from the wireless relay device registered by the registration unit.