JPH1155723A - Mca radio equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inform a cause to a failure to the operator when a selective call is failed. SOLUTION: A sender station 10 sends a selective call signal S1 to a called station 20 and when the sender station 10 receives a selective call reply signal S2 to which selective call result information returned from the called station 20 is added, a selective call control means 14 discriminates a result of the selective call, and when the discrimination result indicates a negative acknowledgement NAK, a speaker 50 sounds a selective call fail tone or a display device 40 displays a notice text with respect to a reason of NAK. Furthermore, in the case that a setting time of a non response timer 13 started at the transmission of the selective call signal elapses while not receiving the selective call reply signal S2, the speaker 50 sounds a selective call no reply tone or the display device 40 displays the selective call no reply notice text.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an MCA (Multi)
i Channel Access), and relates to an MCA radio apparatus having a select call (selection call) function.

[0002]

2. Description of the Related Art A conventional MCA radio apparatus having a call-to-call function transmits a call-to-call signal from a calling station to a call-receiving station. At the same time as notifying that the cell phone has received the call, a cell call response signal is transmitted to the calling station. When the originating station receives this call response signal, if the call response signal is ACK (acknowledgement) information, it issues a call success sound and informs it. Also,
When the call signal is NAK (rejection response) information,
Alternatively, if the calling station does not receive a call response signal from the called station at the specified time, a call failure sound is sounded to notify the user.

[0003]

By the way, the reason for such a failure of the call in the MCA radio apparatus is that the call station cannot receive the call signal or the call station cannot receive the call response signal. And the called station when the called station is in a state of being unable to receive a called call, that is, when a call is already being made by receiving a call signal from another station, or when the received call buffer is full. There is a failure of cereal call by the cause.

However, in a conventional MCA radio apparatus,
If the call fails, the originating station will only alert the caller with a failure sound regardless of the reason for the failure, and the operator of the calling station will not be able to determine the reason for the failure of the call, so In the case of the failure of the cel-call due to the cause of the above, there is a problem that the operator repeatedly performs an unnecessary call such as re-transmission even though the re-transmission is meaningless.

In an MCA system in which a single frequency band is used jointly by a plurality of users, it is necessary to effectively use a limited number of frequency bands. There is a strong demand to reduce the talk time as much as possible, and from this viewpoint, making an unnecessary call as described above is an important issue to be avoided.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide an MCA radio apparatus capable of notifying an operator of a cause of failure when a call fails.

[0007]

According to the present invention, there is provided an MCA radio apparatus in which an originating station and a terminating station relay and communicate with each other via an MCA control station. A call signal transmitting means for transmitting the call signal to the called station, a call signal response signal receiving means for receiving a call signal from the called station to which a positive or negative response is added to the call result, A no-response timer, determines whether the result of the call of the call response signal received by the call response signal receiving means is an affirmative response or a negative response, and outputs a control command for failure of the call when a negative response is received, and outputs a control command from the designated receiving station. If the set time of the non-response timer elapses without receiving the cereal call response signal, the control of the cereal call no response is performed. A cereal call control means for transmitting a command, and a cereal call failure sound is sounded by a cereal call control command from the cereal call control means, and a cereal call non-answer sound is sounded by a cerecall non-response control command. Means.

According to the present invention, the operator can be notified of the reason for failure when the call fails.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention according to claim 1 of the present invention is an MCA radio apparatus in which a calling station and a called station relay and relay an MCA control station, wherein the calling station transmits a call signal to the called station. A call signal transmitting means for transmitting a call signal to the station; a call signal response signal receiving means for receiving a call response signal obtained by adding information of a positive response or a negative response to the call result from the receiving station; A response timer for determining whether the result of the call of the call response signal received by the call reception response signal receiving means is an affirmative response or a negative response; When the set time of the non-response timer elapses without receiving a response signal, a control command of a non-response to the call is sent. And a sounding means for notifying a cereal call failure sound by a sound in response to a cereal call failure control command from the cereal call control means and a cereal call non-response sound in response to a cereal call non-response control command. The sound of the notification sound allows the operator of the transmitting station to determine the cause of the failure in the event of a cereal call failure, and prompts corrective actions thereafter.
It has the effect of eliminating unnecessary calling operations.

According to a second aspect of the present invention, there is provided an MCA radio apparatus in which a calling station and a called station relay and relay an MCA control station, wherein the calling station transmits a call signal to the called station. Means for adding a positive response or negative response information to the call result from the receiving station, and receiving a call response signal obtained by adding a call response negative response reason information to the negative response of the call result, A no-response timer started simultaneously with the transmission of the call, and a determination of whether the result of the call of the response call signal received by the reception signal reception means is a positive response or a negative response. Setting the no-response timer without receiving a call response signal from the designated receiving station When the time elapses, a cereal call control means for transmitting a cereal call non-response control command, and a cereal call failure reason is displayed based on the cereal call rejection response reason information by a cereal call failure control command from the cereal call control means, and the cereal call is not responded. Display means for displaying a non-response notification message in response to a control call instruction, and by displaying the reason for failure on the display means, the operator of the transmitting station can determine the cause of failure when the call fails. This has the effect of encouraging subsequent corrective actions and eliminating unnecessary calling operations.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG.

FIG. 1 shows an MCA according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating an overall configuration of a wireless device. In FIG. 1, an MCA radio apparatus includes a transmitting station 10, a receiving station 20, M
A CA control station 30 is provided.
The communication is performed by relaying the A control station 30.

The calling station 10 transmits a call signal 11 for transmitting a call signal S 1, a call response signal receiving means 12 for receiving a call response signal S 2 from the receiving station 20, and measures the non-response time of the receiving station 20. The non-response timer 13 and the non-response timer 13 are activated when the cel-call signal S1 is transmitted from the cel-call signal transmission means 11, and the cel-call response signal S2 from the terminating station 20 is transmitted within the set time of the non-response timer 13. The signal receiving means 12 monitors whether the signal has been received, and determines whether the result of the call when the call response signal receiving means 12 receives the call response signal is NAK or ACK. 1
3 includes a cereal call control means 14 for outputting a control signal corresponding to the monitoring result, a display control means 15 and a sound control means 16 operated by the control signal output from the cereal call control means 14. A display 40 is connected to the display control means 15, and a speaker 50 is connected to the sound control means 16.
Is connected.

FIG. 2 shows an example of the format of a call response signal. This format 100 is composed of a control code 101, a call transmission station ID 102, and a local station ID 10
3. Cerecol result 104 and Cerecol NAK reason 1
05, etc., and the receiving station 20 receives the call signal S1
ACK or N
AK information is added, and furthermore, the call result 104 is NA
In the case of K, the NAK reason information is put on the cel call NAK reason 105 and transmitted.

Next, the operation of the MCA radio apparatus configured as described above will be described with reference to the flowchart shown in FIG.

At the time of selective calling from the calling station 10, first, a calling signal S1 is transmitted from the calling signal transmitting means 11 to the receiving station 20 via the MCA control station 30 (step S1). When the cereal call signal S1 is transmitted, the cereal call control means 14 gives a start command to the non-response timer 13 and starts the non-response timer 13 (step S2). Thereafter, it is determined whether or not the call response signal receiving means 12 has received the call response signal S2 from the receiving station 20 (step S3). Here, in a case where the call response signal S2 cannot be received, it is determined whether the time set in the no-response timer 13 has elapsed (step S4). If the set time has not elapsed, the process returns to step S3, and it is determined again whether or not the call response signal S2 has been received. When the non-response timer 13 times out without receiving the call response signal S2, the non-response timer 13 is stopped (step S5). Thereafter, the speaker 50 is driven by outputting a non-response control signal from the cereal call control means 14 to the sound control means 16 to sound a cereal call non-response sound (step S6). Further, by outputting a non-response control signal from the cereal call control means 14 to the display control means 15, the display 40 is driven,
Display a message "No response from the partner station" (step S7).

In this case, the cause may be that the radio field of the transmitting station 10 or the receiving station 20 is weak or the receiving station 20 is not operating, and the operator of the transmitting station radio apparatus can take appropriate measures.

On the other hand, in step S3, before the non-response timer 13 times out, the call-in response signal S2
If it is recognized that the response has been received, it is determined whether the response is from the receiving station 20 (step S8). Here, the receiving station 20
If it is determined that the response is not a response from, the process proceeds to step S1, and the processes after step S4 are executed. If it is determined that the response is from the receiving station 20, the process proceeds to step S9, and the non-response timer 13 is stopped. afterwards,
The cereal call response signal S
Then, it is determined whether the result of the call in step 2 is ACK or NAK (step S10). Here, in the case of ACK, the speaker 50 is driven by outputting a control signal of the success of the call to the sound control means 16 from the call control means 14 to sound the call success sound (step S1).
1). In the case of non-ACK, that is, NAK, the speaker 50 is driven by outputting a control signal of cereal call failure from the cereal call control means 14 to the sound control means 16 to generate a cereal call failure sound (step S1).
2). Further, the display 40 is driven by outputting a control signal indicating that the cereal call has failed from the cereal call control means 14 to the display control means 15. The determined NAK reason statement is displayed (step S13).

At this time, the operator of the transmitting station radio apparatus knows that it is meaningless to retransmit the call signal, and also knows the NAK reason at the receiving station 20. Can be.

[0020]

As described above, according to the present invention, it is possible to cause the operator of the transmitting station to judge the cause of the failure when the call fails by prompting the notification sound. Operation can be eliminated.

Further, according to the present invention, by displaying the reason for failure, the operator of the calling station can be caused to judge the cause of the failure when the call fails, prompting corrective action thereafter, and performing unnecessary call operation. Can be eliminated.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an overall configuration of an MCA radio apparatus according to an embodiment of the present invention.

FIG. 2 is a view showing an example of a format of a call response signal according to the embodiment of the present invention;

FIG. 3 is a flowchart showing a processing procedure for transmitting a call by the MCA radio apparatus according to the embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 originating station 11 cereal call signal transmitting means 12 cereal call response signal receiving means 13 non-response timer 14 cereal call control means 15 display control means 16 sound control means 20 receiving station 30 MCA control station 40 display 50 speaker (sound means)

Claims (2)

[Claims] 1. An MCA radio apparatus in which a transmitting station and a receiving station perform communication by relaying an MCA control station, wherein the transmitting station comprises:
A call signal transmitting means for transmitting a call signal to the called station; a call signal receiving signal for receiving a call signal obtained by adding a positive or negative response to the call result from the called station; The non-response timer started at the same time determines whether the result of the call of the call response signal received by the call reception signal receiving means is a positive response or a negative response. A call control means for sending a control command of no call response when the set time of the non-response timer has elapsed without receiving a call response signal from the called station; and a call control failure control command from the call control control means. Notify failure sound by ringing sound MCA wireless apparatus and a sounding means for informing at ringing the Serekoru unresponsive tone by use control command. 2. An MCA radio apparatus in which a transmitting station and a receiving station perform communication by relaying an MCA control station, wherein the transmitting station comprises:
A call signal transmitting means for transmitting a call signal to the called station; a call signal response means for adding positive or negative information to the call result from the called station; A call response signal receiving means for receiving a signal, a no-response timer started simultaneously with the transmission of the call, and a determination whether the result of the call response of the call response signal received by the call response signal receiving means is a positive response or a negative response. A control command for outputting a control command for failing to perform a call when a negative response is received, and transmitting a control command for not responding to a call when a set time of the non-response timer elapses without receiving a call response signal from a designated receiving station. Means for cereal call failure from said cereal call control means MCA wireless apparatus and a display means for displaying together Serekoru no response notification sentence by Serekoru control command for no response display based Serekoru failure reason to the Serekoru negative acknowledgment reason information by your command.