JP3260035B2 - Mobile phone - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a TDMA / T which performs communication by time division multiple access and time division bidirectional transmission.
The present invention relates to a digital cordless telephone device which adopts a DD system and allows a mobile station to connect to both an indoor base station and an outdoor base station.

[0002]

2. Description of the Related Art FIG. 3 shows the structure of a mobile station in a conventional digital cordless telephone of this type. In FIG. 3, reference numeral 101 denotes an antenna, which is connected to a wireless circuit 102. The wireless circuit 102 transmits and receives wireless data while being instructed by the wireless control unit 103 about the frequency and the transmission and reception timing. Reference numeral 102a denotes a synthesizer, which is built in the wireless circuit 102 and generates a frequency specified by the wireless control unit 103. A wireless control unit 103 performs wireless control by measuring a reception level from the received wireless data. Reference numeral 104 denotes a channel codec, which assembles and disassembles data transmitted and received on a wireless communication channel and a control channel. 105
Is a speech control unit, which converts digital voice data from the channel codec unit 104 into an analog
6 and also converts the analog audio signal from the microphone 107 into a digital
Transfer to Reference numeral 106 denotes a receiver that outputs an analog signal as audio, and 107 denotes a microphone that converts the audio into an analog signal. Reference numeral 108 denotes a control unit including a microcomputer or the like, which issues a control instruction for the entire hardware. A memory unit 109 stores a control program, a system call code, and the like. An operation unit 110 includes various keys, and a display unit 111 includes a liquid crystal display.

[0003] Communication channel data is composed of information such as voice and control information processed by the control unit 108, and user data such as voice is processed without passing through the control unit 108. When the control channel data and the communication channel control data are received from the antenna 101 via the radio circuit 102, the channel codec 104
08 is notified of reception. The reception timing is instructed from the channel codec unit 104 to the radio control unit 103 and the radio circuit 102 each time, and the reception frequency is set in advance by the control unit 108 for each reception timing.
Set to. When transmitting the control data, the control unit 108 instructs the wireless control unit 103 and the wireless circuit 102 about the transmission timing in advance, and transmits the data to the wireless circuit 102. The channel codec 104 also has a function of detecting the presence or absence of an error at the time of data reception and transferring the data together with the received data.

[0004] Next, a process of designing a base station in the above-described conventional example will be described with reference to FIG. In the conventional station design, first, as shown in (a), one base station A is installed, and the reception electric field strength of the logical control channel (LCCH) of the base station A is measured by the dedicated measuring instrument 200, and the measurement is performed. Machine 20
0 is gradually moved away from the base station A to determine the arrival area A of the reception electric field. Next, as shown in (b), the base station B is installed next to the base station A, and the area B is determined by the same method. Then, as shown in (c), the user actually moves in the areas A and B with the mobile station M, and checks whether or not there is an area where calls cannot be made or received.

[0005]

However, in the above-mentioned conventional digital cordless telephone equipment station design, a dedicated measuring device is required for measuring the received electric field strength, and the logical control channels of a plurality of base stations are transmitted simultaneously. In an area where it is not known which of the base station's logical control channels is to be captured, it is necessary to turn on and off the power supply of each base station one by one for measurement, which is inefficient. Further, even when the mobile station is actually moved with the mobile station after the base station is installed, in order to determine whether or not the areas of a plurality of logical control channels are stationed overlapping, one base station at a time It was necessary to turn the power on and off, make a call and check it.

The present invention solves such a conventional problem, and measures the reception electric field strength of a desired base station by a single mobile station without turning on and off one base station at a time when designing a station. It is an object of the present invention to provide an excellent digital cordless telephone device that can perform the operation.

[0007]

In order to achieve the above object, the present invention provides a mobile telephone for transmitting and receiving wireless data.
The radio circuit to perform and the reception level from the received radio data
A wireless control unit that controls the wireless circuit unit by measuring
Transmitted and received on wireless communication and control channels
Input and output of audio data by assembling and disassembling data
Channel codec section that performs audio
Audio data to the
Call control unit for input / output to the connection unit and operation unit for operation
And a display unit for display, by operating the operation unit
When the base station fixed mode is set, select from multiple base stations.
Measure the field strength for the selected base station and
The strength is displayed on the display unit and the base station is fixed.
When exiting the mode, capture multiple base stations and make and receive calls
Is performed .

[0008]

Therefore, according to the present invention, a mobile phone for general communication is provided.
Modify the operation of the base station using the telephone configuration as it is
First, the terminal selects the selected base station among the neighboring base stations.
The received electric field strength can be displayed on the mobile phone for the local office.
You. This makes it possible to use a general
Since the mobile phone configuration for calls can be used as is,
Easy measurement without the need for special measuring instruments
It is.

[0009]

FIG. 1 shows the configuration of a mobile station of a digital cordless telephone according to an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes an antenna, which is connected to a radio circuit 2. The wireless circuit 2 transmits and receives wireless data while being instructed by the wireless control unit 3 for the frequency and the transmission and reception timing. 2a is a synthesizer, and a wireless circuit 2a
And generates a frequency designated by the wireless control unit 3. Reference numeral 3 denotes a wireless control unit that performs wireless control by measuring a reception level from received wireless data. Reference numeral 4 denotes a channel codec unit, which assembles and disassembles data transmitted and received on a wireless communication channel and a control channel. Reference numeral 5 denotes a call control unit which converts the digital audio data from the channel codec unit 4 into an analog signal and outputs it to the receiver 6, and converts the analog audio signal from the microphone 7 into a digital signal and transfers the digital audio signal to the channel codec unit 4. Reference numeral 6 denotes a receiver that outputs an analog signal as audio, and reference numeral 7 denotes a microphone that converts the audio into an analog signal. Reference numeral 8 denotes a control unit including a microcomputer or the like, which issues a control instruction for the entire hardware. 9
Reference numeral denotes a memory unit for storing a control program, a system call code, and the like. Reference numeral 10 denotes an operation unit having various keys, 1
Reference numeral 1 denotes a display unit having a liquid crystal display. Reference numeral 12 denotes a temporary storage memory for temporarily storing a reception level, a system call code, and the like obtained from the wireless data received by the wireless control unit 3, and 13 denotes a plurality of base stations provided in the wireless control unit 3. Is a field strength selection receiving means for selecting a desired base station from among the above, measuring the received field strength thereof, and displaying it on the display unit 11.

Next, a process for designing a station in the above embodiment will be described with reference to FIG. First, a special function key is input from the operation unit 10 of the mobile station M, and the electric field strength selection receiving unit 13 is started. Then, as shown in FIG.
When a logical control channel of a certain level or more is received while moving the control signal, the received electric field strength level is stored in the temporary storage memory 12 and the logical control channel having the highest reception level among the logical control channels captured by the display unit 11 is displayed. Displays the received field strength of the channel. In this case, the electric field strength selection receiving means 13 stores the base station ID of the logical control channel that has been successfully received in the temporary storage memory 12 and sequentially displays the base station ID on the display unit 11, so that the desired one (in this case, the base station A By selecting the base station ID of (1) by key operation from the operation unit 10, only the logical control channel of the base station A having the base station ID can be captured. Then, by such a base station ID fixed mode,
The mobile station M is further moved to measure the electric field strength of the base station A while looking at the display unit 12, and the area A of the base station A is determined. Next, as shown in (b), the area B of the base station B is determined by measuring the electric field strength of the adjacent base station B in the same manner in the base station ID fixed mode. After terminating the station, as shown in (c), base stations A and B
In the area where the mobile station M can receive both, the base station ID fixed mode is ended by operating the operation unit 10 of the mobile station M, and the logical control channels of a plurality of base stations can be captured. Test the call. Thereby, it can be confirmed by looking at the display unit 11 of the mobile station M that the areas of the plurality of logical control channels are overlapped.

As described above, according to the present embodiment, the mobile station selects a desired base station from among a plurality of base stations and measures the received electric field strength thereof when designing the base station placement. Since the electric field intensity selection receiving means 13 for displaying on the display unit 11 is provided, the electric field intensity of a desired base station can be measured by the mobile station alone.

[0012]

According to the present invention, as is apparent from the above embodiment, a mobile station selects a desired base station from an area where the logical control channels of a plurality of base stations are transmitted, and receives the received electric field strength. Of the base station can be measured by the mobile station alone in an area where a plurality of base stations exist, and one base station can be set at the time of designing the station. There is no need to turn on / off each unit or use a dedicated measuring instrument, and this has the effect that the station placement design can be performed efficiently.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram showing a configuration of a mobile station of a digital cordless telephone device according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing processing at the time of designing station placement of a base station in the same apparatus.

FIG. 3 is a schematic block diagram showing a configuration of a mobile station of a digital cordless telephone device in a conventional example.

FIG. 4 is a schematic diagram showing processing at the time of designing the placement of a base station in the device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Antenna 2 Radio circuit 3 Radio control circuit 4 Channel codec unit 5 Call control unit 6 Receiver 7 Microphone 8 Control unit 9 Memory unit 10 Operation unit 11 Display unit 12 Temporary storage memory 13 Electric field intensity selection receiving means

Claims (1)

(57) [Claims] 1. A wireless circuit for transmitting and receiving wireless data
And measuring the reception level from the received wireless data and
A wireless control unit for controlling the wireless circuit unit and a wireless communication switch;
Data set transmitted / received on channel and control channel
Channel for inputting and outputting audio data by standing and disassembling
Codec unit, audio data from microphone and receiver
Input / output audio data to / from the channel codec unit.
A call control unit, an operation unit for operation, and a display unit for display.
A display unit, and the base station fixed mode is operated by operating the operation unit.
Base station selected from multiple base stations
The electric field strength is measured and the electric field strength is displayed as described above.
Section and terminates the base station fixed mode.
In this case, multiple base stations can be captured and
Mobile phone that can be cut.