JP2003318768A - Radio equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide radio equipment for changing radio channels, in connection with a communication state, and stably setting a PLL circuit. <P>SOLUTION: The equipment includes: a communication protocol part 20 for monitoring the communication state of a self station, when the change of radio channel information is detected, and indicates the setting of the PLL circuit 401 which outputs an oscillation frequency required to change the radio channel, in the case of a reception period; a PLL circuit setting part 301 for setting the PLL circuit 401 based on the indication; a timer 302, to be operated during a prescribed period from the start of setting the PLL circuit 401 till the completion of stabilizing the oscillation frequency which is outputted after and end of the setting; and a communication control part 303 for controlling prevention of transmission, when the timer 302 is in operation. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a PLL (Phase) that outputs an oscillation frequency necessary for changing a radio channel.
Locked Loop) A wireless device having a function of setting a circuit.

[0002]

2. Description of the Related Art A conventional radio apparatus having a setting function of a PLL circuit changes a radio channel, that is, sets an oscillation frequency of the PLL circuit regardless of a communication state. That is, when the user changes the setting of the wireless channel while the wireless device is transmitting or receiving, the PLL circuit is set in parallel with the transmitting state or the receiving state.

[0003]

However, in the conventional wireless device, when the setting of the wireless channel is changed during transmission, the PLL circuit is set even if the local station is transmitting, and the wireless channel is set. Therefore, there is a problem that the wireless channel is switched during the transmission, and the transmission data and the transmission packet are lost.

Further, if the setting of the PLL circuit is performed during transmission, there is a risk that the transmission radio wave will be output immediately after the setting of the PLL circuit is completed. Therefore, a radio device using the same oscillation frequency after the setting is completed. There is a problem that it becomes an interfering wave with respect to another system having a plurality of.

Further, since it takes a certain time after the setting of the PLL circuit is completed until the oscillation frequency is stabilized and locked, when the setting is completed and the transmission is in progress,
There is a problem that abnormal (unstable) transmission radio waves are output until the oscillation frequency stabilizes and locks.

The present invention has been made in view of the above conventional problems, and provides a radio apparatus capable of changing a radio channel in conjunction with a communication state and performing stable PLL setting. The purpose is to

[0007]

When a change in radio channel information is detected, a radio apparatus of the present invention instructs a setting of a PLL circuit for outputting an oscillation frequency necessary for changing the radio channel during a reception period. PLL circuit setting instruction means and P for setting the PLL circuit based on the instruction.
LL circuit setting means, a timer that is started for a predetermined period required until the oscillation frequency output from the PLL circuit stabilizes after the setting of the PLL circuit is started, and communication is prohibited during the start of the timer. It is characterized by comprising a communication control means for controlling.

With this configuration, since the PLL circuit is set during the reception period, the radio channel is not changed during the transmission period.
The transmitted data will not be lost. Further, since the communication is not performed from the start of setting the PLL circuit until the transmission frequency is stabilized, the communication can be performed after the transmission frequency is stabilized. As a result, stable setting of the PLL circuit can be performed.

Further, in the radio equipment of the present invention, the PLL circuit has a PLL lock signal transmitting means for transmitting a PLL lock signal indicating whether or not the transmission frequency is stable to the PLL circuit setting means, and The PLL circuit setting means repeats the setting of the PLL circuit until the PLL lock signal reaches a lock level indicating that the oscillation frequency is stable.

With this configuration, the setting of the PLL circuit is repeated until the PLL lock signal reaches the lock level indicating that the oscillation frequency is stable. Therefore, even if the setting of the PLL circuit is not normally performed, The settings can be set again.

Further, in the radio apparatus of the present invention, the PLL circuit has a PLL lock signal transmitting means for transmitting a PLL lock signal indicating whether or not the transmission frequency is stable to the PLL circuit setting means, and When it is determined that the PLL lock signal received by the PLL circuit setting means is not at the lock level indicating that the oscillation frequency is stable, an error indicating that the setting of the PLL circuit has failed is displayed by the user. And a control means for controlling to initialize a predetermined device.

With this configuration, when it is determined that the PLL lock signal received by the PLL circuit setting means is not at the lock level indicating that the oscillation frequency is stable, an error is notified to the user and a predetermined value is set. Control the device to be initialized. Therefore, even when the setting of the PLL circuit is not normally performed, the setting of the PLL circuit can be performed again, and the user can recognize that the error has occurred.

Further, the radio apparatus of the present invention is characterized in that, when the control means makes the judgment at least twice consecutively, the control means notifies the error and controls the device to be initialized. .

With this configuration, when the control means determines at least twice that the PLL lock signal received by the PLL circuit setting means is not at the lock level indicating that the oscillation frequency is stable. Since the user is notified of the error, it is possible to prevent misjudgment.

Further, the radio apparatus of the present invention is the radio apparatus according to claim 2, wherein the number of times that the PLL lock signal not in the lock level is received by the PLL circuit setting means exceeds a predetermined number. It is characterized by including a control means for notifying the user of an error indicating that the setting of the PLL circuit has failed, and controlling to initialize a predetermined device.

With this configuration, when the number of times that the PLL lock signal not in the lock level is received by the PLL circuit setting means exceeds a predetermined number, the control means notifies the user of an error and a predetermined value is set. Control the device to initialize. Therefore, even if some abnormality occurs in the PLL circuit, by initializing it again,
The setting of the PLL circuit can be started. Also, the user can recognize that an error has occurred.

Further, the radio apparatus according to the present invention is the radio apparatus according to claim 2, wherein there are a plurality of the PLL circuits, and the PLL circuit setting means transmits a plurality of the lock levels transmitted from the plurality of PLL circuits. It is characterized in that the setting of the PLL circuit is repeated until all the locked PLL lock signals are received.

With this configuration, even in a wireless device having a plurality of PLL circuits, the PLL circuits can be set until the oscillation frequencies of all the PLL circuits are stabilized.

Further, the radio apparatus of the present invention is the radio apparatus according to any one of claims 3 to 5, wherein the PL
When there are a plurality of L circuits, and the PLL circuit setting means receives all of the plurality of PLL lock signals at the lock level transmitted from the plurality of PLL circuits, the control means sets the PLL circuit setting. The means determines that the PLL lock signal having the lock level has been received.

With this configuration, even in a radio device including a plurality of PLL circuits, the PLL circuits can be set until the oscillation frequencies of all the PLL circuits are stabilized.

Further, the wireless device of the present invention is the wireless device according to claim 1, further comprising wireless identification information sending means for sending wireless identification information to the outside after the timer is stopped, and the communication control means sends the wireless identification information. The feature is that control is performed to prohibit communication during the period until the completion of.

With this configuration, since the wireless identification information is transmitted after the oscillation frequency is stabilized, the wireless identification information is not disturbed.

Further, the wireless device of the present invention is the wireless device according to claim 2, wherein after the PLL circuit setting means receives the PLL lock signal at the lock level,
It is characterized in that it is provided with a wireless identification information transmitting means for transmitting the wireless identification information to the outside, and the communication control means performs control to prohibit communication until the transmission is completed.

With this configuration, since the wireless identification information is transmitted after the PLL lock signal received by the PLL circuit setting means reaches the lock level, the wireless identification information is not disturbed.

Further, the radio apparatus of the present invention is the radio apparatus according to any one of claims 3 to 7, wherein the PL
After the control means determines that the L circuit setting means has received the PLL lock signal having the lock level,
It is characterized in that it is provided with a wireless identification information sending means for sending the wireless identification information to the outside, and the communication control means performs control to prohibit communication until the sending is completed.

With this configuration, since the wireless identification information is transmitted after the control means determines that the PLL lock signal received by the PLL circuit setting means has reached the lock level, the wireless identification information is not disturbed.

Furthermore, the wireless device of the present invention is the wireless device according to any one of claims 1 to 10, further comprising a register to which an initial value is written when power is turned on, and the initial value is written to the register. After completion, P
The LL circuit setting means starts the setting of the PLL circuit.

With this configuration, it is possible to prevent the wireless channel from changing while the initial value is being written.

Further, the wireless device of the present invention is a wireless device in which the wireless device according to any one of claims 1 to 11 performs unidirectional transmission, and the reception period is a period during which the transmission state is stopped. Is characterized in that.

With this configuration, in the case of unidirectional transmission with no reception period, the transmission state is stopped and the PLL circuit is set. Therefore, stable P
The LL circuit can be set.

Furthermore, a radio apparatus of the present invention is a radio apparatus in which the radio apparatus according to any one of claims 1 to 12 performs bidirectional communication, and when the change of the radio channel information is detected, the PLL is set. The circuit setting instructing means is characterized in that it negotiates a wireless channel with at least one partner station communicating with the own station.

With this configuration, at the same time when the change in the wireless channel information is detected, the other station can be notified of the change and the channel can be changed to the same channel.

Further, in the radio equipment of the present invention, the PLL circuit setting instruction means performs carrier sense after the communication control section releases the control for prohibiting the communication, and notifies the user of the result of the carrier sense. It is characterized by doing.

With this configuration, the communication control unit performs carrier sense after releasing the control for prohibiting the communication, and notifies the user of the result, so that the user determines whether sufficient communication quality can be secured. It can be judged from the result.

[0035]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIG. 1 is a block diagram of a radio apparatus according to the first embodiment. A wireless device 1 such as a base station or a wireless station in a telephone network bidirectionally communicates with other wireless devices, and has a switch and a switch for the user to set a communication state and change a wireless channel setting. An application unit 10 having a display unit 101 for displaying various operation information, a communication protocol unit 20 for performing communication control based on software or the like describing a communication protocol, a CPU for reading and executing software of the communication protocol unit 20, a DSP , And a baseband unit 30 having a register 304 and the like, and a high frequency radio unit 40 for transmitting data transmitted from the baseband unit 30 to the outside through an antenna (not shown). The communication protocol unit 20 corresponds to the PLL circuit setting instruction means in the claims.

The application section 10 has information (communication state setting information, information input by the user operating a switch, etc.).
The communication protocol unit 20 is notified of wireless channel setting information and the like).

Upon receiving the notification of the wireless channel setting change information from the application unit 10, the communication protocol unit 20 monitors whether the current communication state is a transmission period or a reception period. The wireless channel setting change information is written in the register 304 of 30 and is not written during the transmission period.

The baseband unit 30 sends to the communication protocol unit 20 when the wireless channel setting change information is written in the register 304, in which various command information such as wireless channel setting change information is written from the communication protocol unit 20. Communication control unit 3 for controlling to prohibit
03, the PLL circuit setting unit 3 which starts frequency setting to the PLL circuit 401 after the communication control unit 303 prohibits transmission
01, a PLL lock timer 302 that starts at the same time when the oscillation frequency is set in the PLL circuit 401, and stops after a period in which a compensation period is further provided until the oscillation frequency after setting is locked Composed.

When the PLL lock timer 302 is stopped, the communication control unit 303 determines that the oscillation frequency is stable and locks, and releases the transmission prohibition control.
The compensation time is a margin that is added to the predicted time when the oscillation frequency will lock. By providing this compensation time, before the oscillation frequency locks,
It is possible to prevent the PLL lock timer 302 from stopping.

The high frequency radio unit 40 has a PLL circuit 401, and transmits / receives data to / from the outside through a radio channel changed by the oscillation frequency output from the PLL circuit 401.

The above is a description of each component of the wireless device 1. Next, the operation when the wireless device 1 changes the wireless channel will be described. FIG. 2 is a flowchart illustrating a flow from the user changing the setting of the wireless channel to the wireless channel being changed in the wireless device 1 according to the first embodiment. First, when the user operates the switch of the application unit 10 to change the wireless channel setting (S200), the application unit 10 detects a change in the wireless channel setting change information (S201) and changes the wireless channel setting. The information is notified to the communication protocol 20 (S202). The communication protocol unit 20 monitors the communication status of its own station, and if it is during the reception period (S203: YE
The wireless channel setting change information is sent to S)
It is written in the register 304 of 0 (S204). The baseband unit 30 stores the wireless channel setting change information in the register 3
It is detected that the data is written in 04 (S205), and the communication control unit 303 controls the communication protocol 20 to prohibit transmission (S206). After prohibiting transmission, PL
The L circuit setting unit 301 starts setting the oscillation frequency of the PLL circuit 401, and at the same time, the PLL lock timer 302 is activated (S207). After the setting of the oscillation frequency of the PLL circuit 401 is completed, the oscillation frequency is stably locked (S208).
After that, the PLL lock timer 302 stops after the compensation time elapses (S209), the communication control unit 303 releases the transmission prohibition control (S210), and shifts to a normal communication state (S).
211).

As described above, according to the present embodiment, since the oscillation frequency of the PLL circuit 401 is set during the reception period, the wireless channel does not change during transmission, and the transmission data and the transmission packet are lost. Will disappear. Further, the communication control unit 303 controls the transmission to be prohibited from the start of setting the PLL circuit 401 to the stable locking of the oscillation frequency after the setting. Therefore, it is possible to prevent abnormal radio waves from being output to the outside after the oscillation frequency setting of the PLL circuit 401 is completed and before the oscillation frequency is stably locked.

(Second Embodiment) FIG. 3 is a block diagram of a radio apparatus 1 according to the second embodiment. The same components as those of the wireless device 1 shown in FIG. 1 will be assigned the same reference numerals and explanations thereof will be omitted. The components having the same reference numerals will be described below as to those having different functions.

As shown in FIG. 3, the PLL circuit 401
Is a PLL lock signal transmitting unit 402 that transmits a PLL lock signal indicating whether or not the oscillation frequency after setting is stable and locked to the PLL circuit setting unit 301 (corresponding to a PLL lock signal transmitting unit in the claims). Have. In addition, PL
The L lock signal is, for example, at a high level (“H”) when the oscillation frequency is stable and locked, and at a low level (“L”) when the oscillation frequency is not stable and locked. And The PLL circuit setting unit 301
It is determined whether the PLL lock signal is "H" or "L", and when it is determined to be "L", the setting of the PLL circuit 401 is repeated until the PLL lock signal becomes "H". The communication control unit 303 has a PLL circuit setting unit 301.
The control for prohibiting transmission to the communication protocol 20 is performed until the PLL lock signal received at 1 becomes "H".

It should be noted that the high-frequency radio unit 40 has the PLL circuit 40.
A configuration having a plurality of 1 may be used. In this case, each PL
The L circuit has a PLL lock signal transmission unit, and each PLL lock signal transmission unit transmits a PLL lock signal to the PLL circuit setting unit 301. PLL circuit setting unit 301
Determines whether or not the oscillation frequency after setting the PLL circuit is stable and locked by the logical product of the levels of the plurality of received PLL lock signals. That is, if at least one of the plurality of PLL lock signals is “L”, the PLL circuit setting unit 301 determines that the oscillation frequency after setting the PLL circuit is not stable and is not locked.

FIG. 4 is a timing chart for explaining the operation flow of the PLL setting when the high frequency radio unit 40 has two PLL circuits. As shown in the figure, when the wireless channel setting is changed at the timing indicated by the dotted line A, the wireless device 1 enters the receiving state, the PLL lock timer 302 is activated, and the PLL circuit setting unit 301 sets each PLL circuit. Is started. At this time, the two PLL lock signals a and b are both "L". After that, the PLL setting ends at the timing of the dotted line B, but after the PLL setting ends, the PLL lock signals 1 and 2 have an unstable period in which the state of “H” and “L” are alternately repeated in a short cycle. To do. In order to prevent the PLL circuit setting unit 301 from determining whether the oscillation frequency is stable based on the level of the PLL lock signal during this unstable period, in the present embodiment, after the PLL lock timer is stopped, When the PLL lock signals 1 and 2 are both "H" (timing shown by the dotted line C in the figure), the fact that the oscillation frequencies in the two PLL circuits are stable is
The circuit setting unit 301 makes the determination.

Next, the operation of changing the wireless channel in the wireless device 1 will be described. FIG. 5 is a flowchart illustrating a flow from the user setting the wireless channel to the wireless channel being changed in the wireless device 1 according to the second embodiment. In the figure, the same parts as those in the flow shown in FIG.

The PLL lock timer 302 is started in S207, and after the PLL lock timer 302 is stopped (S50
1) When the PLL circuit setting unit 301 determines that the received PLL lock signal is "H" (S502: YE
In S), the communication control unit 303 cancels the transmission prohibition control (S503). On the other hand, if it is determined to be “L” (S
502: NO) returns to S207 and sets the PLL circuit 401 again.

As described above, according to the present embodiment, when the PLL circuit setting section 301 determines that the level of the received PLL lock signal is "L", the PLL circuit setting section 301 receives the PLL signal.
The setting of the PLL circuit 401 is repeated until the lock signal becomes “H”. Therefore, even if some abnormality occurs in the setting of the PLL circuit 401, the setting of the PLL circuit 401 can be performed from the beginning.

Further, when there are a plurality of PLL circuits, the setting of the PLL circuits is not completed and the transmission prohibition control is not released unless the oscillation frequencies of the respective PLL circuits are locked stably. For this reason, if even one of the plurality of PLL circuits has an abnormality, the PLL circuit setting unit 301 sets the PLL circuit from the beginning, so that the setting of each PLL circuit can be reliably performed.

(Third Embodiment) FIG. 6 is a block diagram of a radio apparatus 1 according to the third embodiment. The same components as those of the wireless device 1 shown in FIG. 3 are designated by the same reference numerals and the description thereof will be omitted. Also, regarding components having the same reference numerals, those having different functions will be described below.

The control unit 201 corresponding to the control means in the claims shown in FIG. 6 determines whether the PLL lock signal received by the PLL circuit setting unit 301 is "H" or "L". To do. When the control unit 201 determines that the PLL lock signal received by the PLL circuit setting unit 301 is “H”, the communication control unit 303 is notified of that fact. On the other hand, the PLL received by the PLL circuit setting unit 301
When the control unit 201 determines that the lock signal is “L”, the display unit 101 displays an error indicating that the setting of the PLL circuit 401 is not normally performed.

Here, if the control unit 201 determines once whether the PLL lock signal received by the PLL circuit setting unit 301 is "H" or "L", it is 1
If a sudden error occurs due to static electricity noise, lightning surge noise, or the like in the determination of the times, the determination may be erroneous. Therefore, the control unit 201 controls the PLL circuit setting unit 3
The PLL lock signal received at 01 is "H" or "L"
Which of the above is determined n times (n is an integer of 2 or more), and when it is not determined that the PLL lock signal is “H” n times consecutively, an error is displayed on the display unit 101. Preferably. By doing so, it is possible to determine whether it is a sudden error or an error due to an abnormality of the PLL circuit 401. In addition, the display unit 101
The contents to be displayed on the (PLL circuit 401
Alternatively, the content indicating whether there is an abnormality in the PLL circuit setting unit 301) may be displayed.

The user confirms this error and uses a switch or the like of the application unit 10 to initialize a predetermined device, for example, all devices of the radio apparatus 1 or all devices in the baseband unit 30. And set the wireless channel again. Also, the communication control unit 303
Controls the communication protocol unit 20 to prohibit transmission until receiving a notification from the control unit 201. After the control unit 201 displays the error on the display unit 101, all the devices of the wireless device 1, or the application unit 10, the communication protocol unit 20, the baseband unit 30, and the high-frequency wireless unit 40 are automatically operated. All devices in at least one may be initialized.

Next, the operation of the wireless device 1 when changing the wireless channel will be described. FIG. 7 is a flowchart illustrating a flow from the user setting the wireless channel to the wireless channel change in the wireless device 1 according to the third embodiment. In the figure, the same steps as those in the flow shown in FIG.

After the PLL lock timer 302 is stopped in S501, the control unit 201 determines whether the PLL lock signal received by the PLL circuit setting unit 301 is "H" or "L" (S701). PLL circuit setting unit 30
When the control unit 201 determines that the PLL lock signal received in 1 is “L” (S701: NO), the display unit 101 displays an error (S702). The user who confirms the error operates the switch of the application unit 10 to initialize a predetermined device (S703). After that, when the wireless channel is set again (S200), the operation proceeds to S201. On the other hand, the PLL received by the PLL circuit setting unit 301
When the control unit 201 determines that the lock signal is "H" (S701: YES), the communication control unit 303 is notified of that fact, and the communication control unit 303 releases the transmission prohibition control (S503).

As described above, according to this embodiment, when the control unit 201 determines that the PLL lock signal received by the PLL circuit setting unit 301 is “L”, the control unit 201 causes the display unit 101 to operate. To display an error. Therefore, the user can determine that the setting of the PLL circuit 401 is abnormal due to the error. or,
By displaying which part has an abnormality, the abnormal part can be easily identified, and the efficiency of repair man-hours can be improved.

(Fourth Embodiment) In the fourth embodiment of the present invention, in the wireless device 1 of the third embodiment, the control unit 201 determines that the PLL lock signal received by the PLL circuit setting unit 301 is "L". Even if is determined, the display unit 1 immediately
The configuration is such that no error is displayed on 01.

The block diagram of the wireless device 1 according to the present embodiment is as follows:
Since it is the same as that shown in FIG. 6, only components having different functions will be described below. PLL circuit setting unit 30
When the control unit 201 determines that the PLL lock signal received at 1 is “L”, the PLL circuit setting unit 301 sets P
The setting of the LL circuit 401 is repeated. The control unit 201
The number N of times when the PLL lock signal received by the LL circuit setting unit 301 is determined to be “L” is counted, and when the counted number is larger than the predetermined number L, the display unit 101
To display an error.

Next, the operation when changing the wireless channel in the wireless device 1 will be described. FIG. 8 is a flowchart illustrating a flow from the user setting the wireless channel to the wireless channel change in the wireless device 1 according to the fourth embodiment. In the figure, the same parts as those in the flow shown in FIG.

S701: No, the PLL circuit setting section 30
When the control unit 201 determines that the PLL lock signal received at 1 is “L”, 1 is added to the number N of times when the PLL lock signal received at the PLL circuit setting unit 301 is determined to be “L” ( S801). If the value obtained by adding 1 to N is larger than L (S802: NO), an error is displayed on the display unit 101 in S702. On the other hand, if the value obtained by adding 1 to N is smaller than L (S802: YES), S2
Move to 07.

As described above, according to this embodiment, the number N of times the control unit 201 determines that the PLL lock signal received by the PLL circuit setting unit 301 is "L".
However, when the number of times exceeds the predetermined number L, an error is displayed on the display unit 101. P received by the PLL circuit setting unit 301
The control unit 201 determines that the LL lock signal is “L”.
If the determination is made only once, the error has occurred suddenly, and there may be no abnormality in the PLL circuit 401 in practice. Therefore, in the present embodiment, when the control unit 201 determines that the PLL lock signal received by the PLL circuit setting unit 301 is “L” a plurality of times, the display unit 1
Error is displayed on 01. Therefore, the PLL circuit 4
It is possible to accurately determine that there is some abnormality in the 01 setting.

(Fifth Embodiment) In the wireless device 1 described in the first to fourth embodiments, the application unit 10 writes an initial value to the register 304 of the baseband unit 30 when the power of the wireless device 1 is activated. In the case of having a function, even if the initial value is being written to the register 304, the PLL circuit 401 is set, which causes a problem that the setting of the PLL circuit 401 is not normally performed. Therefore, in the wireless device 1 according to the fifth embodiment, an initial value write completion register (not shown) is provided in the baseband unit 30 of the wireless device 1 described in the first to fourth embodiments to write the initial value. In the configuration, the PLL circuit 401 is not set.

The wireless device 1 according to the fifth embodiment is the same as the wireless device 1 described in the first to fourth embodiments, but in the baseband unit 30, at the time when the writing of the initial value to the register 304 is completed, Information indicating that the writing of the initial value is completed is written in the initial value write completion register. Here, when the user has changed the setting of the wireless channel, the communication control unit 303 prohibits transmission to the communication protocol unit 20 after the above information is written in the initial value write completion register. Take control. After that, the operations described in the first to fourth embodiments are performed.

As described above, according to the present embodiment, even when the application section 10 has a function of writing the initial value to the register 304 when the power is turned on, the PLL circuit 401 of the PLL circuit 401 is completed after the writing of the initial value is completed. Since the setting is performed, stable setting of the PLL circuit can be performed.

(Sixth Embodiment) The radio apparatus 1 according to the sixth embodiment of the present invention is the radio apparatus 1 described in the first to fifth embodiments, in which the high-frequency radio unit 40 is activated when the power is turned on.
If you have a function to send the wireless identification code from the
The configuration is such that the radio frequency identification code is sent to the outside after the oscillation frequency of the PLL circuit 401 is locked.

The wireless device 1 according to the sixth embodiment is the same as the wireless device 1 described in the first to fifth embodiments, except that the baseband unit 30 generates a wireless identification code and the high frequency wireless unit 40 is used. A wireless identification code transmission unit (not shown) for transmitting the wireless identification code to the outside.

In the first embodiment, the wireless identification code transmitting section operates after the PLL lock timer 302 has stopped (S in FIG. 2).
209), in the second embodiment, the PLL circuit setting unit 3
After the control unit 201 determines that the PLL lock signal received in 01 is “H” (S502: YES in FIG. 5),
Alternatively, in the third, fourth, and fifth embodiments, the PLL circuit setting unit 3
After the control unit 201 determines that the PLL lock signal received in 01 is “H” (S701: YE in FIGS. 7 and 8).
In S), a wireless identification code is generated and sent to the outside.

As described above, according to this embodiment, after the control unit 201 determines that the PLL lock signal received by the PLL circuit setting unit 301 is “H”, that is, the output from the PLL circuit 401. After the oscillation frequency is stabilized, the wireless identification code is sent to the outside. Therefore, PL
It is possible to solve the problem of disturbance of the wireless identification code due to outputting the wireless identification code to the outside while the oscillation frequency of the L circuit 401 is not stable.

(Seventh Embodiment) When the wireless device 1 described in the first to sixth embodiments is for one-way transmission, these wireless devices have no reception period. Therefore, the wireless device 1 according to the seventh embodiment of the present invention
Is compulsorily transmitted when the communication protocol unit 20 of the wireless device 1 described in the first to sixth embodiments receives a wireless channel setting change notification (S202 in FIGS. 2, 5, 7, and 8). It is configured to stop the state. After stopping the transmission state, the wireless device 1 operates as described in the first to sixth embodiments.

As described above, according to the present embodiment, even in a wireless device which performs unidirectional transmission without a reception period, the transmission state is forcibly stopped and a period corresponding to the reception period is created. It is possible to perform stable PLL circuit setting.

(Eighth Embodiment) In a wireless device 1 according to an eighth embodiment of the present invention, the wireless device 1 described in the first to sixth embodiments communicates with other wireless devices. In this case, at the same time as changing one wireless channel, the other wireless channel is also controlled to have a channel negotiation function.

Radio apparatus 1 according to the eighth embodiment of the present invention
In the wireless device 1 described in the first to sixth embodiments, when the communication protocol 20 receives a wireless channel setting change notification (S20 in FIGS. 2, 5, 7, and 8).
2) The channel negotiation is performed with the wireless device that is communicating. In addition, the communication protocol unit 20 includes
A wireless channel change compensation timer is provided which counts a fixed time after the end of channel negotiation.

FIG. 9 shows a radio apparatus 1 according to the eighth embodiment.
6 is a sequence chart when performing channel negotiation with another wireless device 2. Here, for example, when the communication protocol unit 20 of the wireless device 1 receives a wireless channel setting change notification (S900), it makes a wireless channel setting change request to the wireless device 2 (S901). Upon receiving the wireless channel setting change request, the communication protocol unit of the wireless device 2 responds to the wireless channel setting change request (S).
902). The communication protocol unit 20 of the wireless device 1 that has received the response transmits the wireless channel number to be changed (S90).
3). The communication protocol unit of the wireless device 2 that has received the wireless channel number sends a wireless channel number reception response (S9).
04). Upon receiving the response, the communication protocol unit 20 of the wireless device 1 issues a wireless channel change start request (S90).
5). The communication protocol unit of the wireless device 2 that has received the wireless channel change start request sends a wireless channel change start response (S906). In each wireless device, after the count of the wireless channel change compensation timer is stopped (S907), the communication protocol unit writes the wireless channel setting change to the register of the baseband unit, and the operation described in the first to sixth embodiments is performed. I do.

As described above, according to the present embodiment, the communication protocol unit 20 of the wireless device 1 receives the setting change notification of the wireless channel and at the same time notifies the other station of the setting change and sends the same wireless channel. Can be changed to.

In the above description, the case of simultaneously changing the wireless channel between two wireless devices has been described.
Even when the wireless device 1 (master) can communicate with a plurality of wireless devices (slaves) by polling or the like, the master sequentially performs channel negotiation with each slave, so that one wireless device can perform a plurality of wireless devices. You can change your wireless channel. However, in this case, the master changes its own wireless channel after the channel negotiation with the last slave is completed.

(Ninth Embodiment) In the wireless device 1 according to the ninth embodiment of the present invention, the communication protocol unit 20 of the wireless device 1 described in the first to eighth embodiments has a carrier sense function. It is configured.

The wireless device 1 according to the ninth embodiment is the same as the wireless device 1 described in the first to eighth embodiments, except that the communication protocol unit 20 normally operates after the communication control unit 303 releases the transmission prohibition control. Before returning to the state, carrier sense is performed, and carrier sense information (radio channel congestion status, received electric field level, etc.) as a result of the carrier sense is displayed on the display unit 101.

As described above, according to the present embodiment, after the communication control unit 303 releases the transmission prohibition control and before returning to the normal state, the changed congestion status of the wireless channel, the received electric field level, etc. are used. Can be grasped by the person.
Therefore, when the changed wireless channel is congested or the received electric field level is extremely low, the user can take measures such as setting to change the wireless channel to another wireless channel.

[0080]

According to the present invention, since the PLL circuit is set during the receiving period, the wireless channel is not changed during the transmitting period, and the transmission data is not lost.
Since communication is not performed during the period from the start of circuit setting to the stabilization of the transmission frequency, it is possible to perform communication after the transmission frequency is stable, and it is possible to perform stable PLL circuit setting. A wireless device can be provided.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a wireless device according to a first embodiment of the present invention.

FIG. 2 is a flowchart illustrating a flow from a user setting a wireless channel to a change of the wireless channel in the wireless device according to the first embodiment of the present invention.

FIG. 3 is a configuration diagram of a wireless device according to a second embodiment of the present invention.

FIG. 4 is a timing chart illustrating a flow of a PLL setting operation when the high-frequency wireless unit 40 has a configuration including two PLL circuits in the wireless device according to the second embodiment of the present invention.

FIG. 5 is a flowchart illustrating a flow from a user setting a wireless channel to changing the wireless channel in the wireless device according to the second embodiment of the present invention.

FIG. 6 is a configuration diagram of a wireless device according to a third embodiment of the present invention.

FIG. 7 is a flowchart illustrating a flow from a user setting a wireless channel to a change of the wireless channel in the wireless device according to the third embodiment of the present invention.

FIG. 8 is a flowchart illustrating a flow from a user setting a wireless channel to changing the wireless channel in the wireless device according to the fourth embodiment of the present invention.

FIG. 9 is a sequence chart when the wireless device according to the eighth embodiment of the present invention performs channel negotiation with another wireless device.

[Explanation of symbols]

1 and 2 wireless devices 10 Application Department 20 Communication protocol section 30 baseband 40 High-frequency radio section 101 display 201 control unit 301 PLL circuit setting section 302 PLL lock timer 303 Communication control unit 304 register 401 PLL circuit 402 PLL lock signal transmitter

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Takayuki Shimaoka             3-1, Tsunashima-Higashi 4-chome, Kohoku-ku, Yokohama-shi, Kanagawa             Matsushita Communication Industry Co., Ltd. (72) Inventor Atsushi Nomura             3-1, Tsunashima-Higashi 4-chome, Kohoku-ku, Yokohama-shi, Kanagawa             Matsushita Communication Industry Co., Ltd. (72) Inventor Manabu Mado             1-3 1-3 Nishinen, Kanazawa, Ishikawa Prefecture Stock Association             Company Matsushita Communication Kanazawa Research Center (72) Inventor Katsuya Miyanishi             1-3 1-3 Nishinen, Kanazawa, Ishikawa Prefecture Stock Association             Company Matsushita Communication Kanazawa Research Center F term (reference) 5K011 DA07 DA28 EA05 FA06 GA07                       KA13

Claims (14)

[Claims] 1. When a change in wireless channel information is detected,
PLL circuit setting instructing means for instructing the setting of the PLL circuit that outputs the oscillation frequency necessary for changing the radio channel in the reception period, and the PLL for setting the PLL circuit based on the instruction.
Circuit setting means, and the P circuit after the setting is completed from the start of setting the PLL circuit.
A wireless device comprising: a timer that is activated for a predetermined period required for the oscillation frequency output from the LL circuit to stabilize; and a communication control unit that performs control to prohibit communication during activation of the timer. 2. The PLL circuit has a PLL lock signal transmitting means for transmitting a PLL lock signal indicating whether or not the transmission frequency is stable to the PLL circuit setting means, and the PLL lock signal is the transmission signal. 2. The radio apparatus according to claim 1, wherein the PLL circuit setting means repeats setting of the PLL circuit until a lock level indicating that the frequency is stable is reached. 3. The PLL circuit has a PLL lock signal transmitting means for transmitting a PLL lock signal indicating whether or not the oscillation frequency is stable to the PLL circuit setting means, and is received by the PLL circuit setting means. If the PLL lock signal is determined to be not at a lock level indicating that the oscillation frequency is stable, an error indicating that the setting of the PLL circuit has failed is notified to the user,
The wireless apparatus according to claim 1, further comprising a control unit that controls to initialize a predetermined device. 4. The wireless apparatus according to claim 3, wherein the control unit notifies the error and controls the device to be initialized when the determination is made at least twice in succession. . 5. A PLL not in the lock level
When the number of times that a lock signal is received by the PLL circuit setting means exceeds a predetermined number, an error indicating that the setting of the PLL circuit has failed is notified to the user, and control is performed to initialize a predetermined device. The wireless device according to claim 2, further comprising control means for performing the operation. 6. A plurality of the PLL circuits are present, and the PL circuit is provided.
The wireless circuit according to claim 2, wherein the L circuit setting means repeats the setting of the PLL circuit until all the plurality of PLL lock signals having the lock level and transmitted from the plurality of PLL circuits are received. apparatus. 7. A plurality of the PLL circuits are present, and the PL circuit is provided.
When the L circuit setting means receives all of the plurality of PLL lock signals having the lock level transmitted from the plurality of PLL circuits, the control means causes the PLL circuit setting means to have the lock level. The wireless device according to claim 3, wherein the wireless device determines that a PLL lock signal has been received. 8. A wireless identification information sending unit for sending wireless identification information to the outside after the timer is stopped, wherein the communication control unit performs control to prohibit communication until the sending is completed. The wireless device according to claim 1, wherein the wireless device is a wireless device. 9. The wireless communication device further comprises: wireless identification information transmitting means for transmitting wireless identification information to the outside after the PLL circuit setting means receives the PLL lock signal having the lock level, The wireless device according to claim 2, wherein control is performed to prohibit communication during a period until completion. 10. A wireless identification information sending unit for sending wireless identification information to the outside after the control unit determines that the PLL circuit setting unit receives the PLL lock signal at the lock level, 8. The wireless device according to claim 3, wherein the communication control means performs control to prohibit communication until the transmission is completed. 11. A register to which an initial value is written at power-on is provided, and the PLL circuit setting means starts setting of the PLL circuit after the writing of the initial value to the register is completed. The wireless device according to any one of claims 1 to 10. 12. The wireless device according to claim 1, wherein the wireless device performs unidirectional transmission, and the reception period is a period in which a transmission state is stopped. The wireless device according to any one of claims 1 to 11. 13. The wireless device according to claim 1, which is a wireless device that performs bidirectional communication, and when the change in the wireless channel information is detected, the PLL circuit setting instruction means is 13. The wireless device according to claim 1, wherein a wireless channel is negotiated with at least one partner station communicating with the station. 14. The PLL circuit setting instructing means performs carrier sense after the communication control unit releases the control for prohibiting the communication, and notifies the user of the result of the carrier sense. Claims 1 to 13
The wireless device as described in any one of 1 above.