JP3781680B2 - Terminal for performing packet transmission by wireless communication, and program for the terminal - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a terminal that performs packet transmission by wireless communication , and a program of the terminal , and in particular, a terminal that gives a user an action / work suggestion / instruction appropriate for eliminating the cause of the disconnection, and the terminal It relates to the terminal program.
[0002]
[Prior art]
In recent years, terminals that perform packet transmission by wireless communication have become widespread. Such a terminal generally communicates with a server via a wireless base station by a communication method in accordance with an OSI (Open Systems Interconnection) basic reference model. In this model, hierarchical control is performed such as layer 1 (physical layer), layer 2 (link layer), and layer 3 (protocol layer).
[0003]
On the other hand, since such a terminal follows the OSI basic reference model, different problems / failures (errors) occur in each layer.
As a conventional technique for solving an error that has occurred in layer 1, for example, a random access control technique can be cited. In this technique, it is as follows.
[0004]
When the radio base station determines that the transmission slot from the terminal is the last slot based on the information on the message length of the transmission data from the terminal, the uplink slot is released to all terminals from the next slot. To do. As for transmission data from the terminal, when an error frame or an untransmitted frame is detected in layer 2 on the radio base station side, a retransmission request is made to the terminal.
[0005]
[Problems to be solved by the invention]
However, although the random access control technique is effective when the traffic volume increases, it cannot be said that it is an effective process when data communication is interrupted.
[0006]
The present invention has been made in view of the above problems, and by providing the user with suggestions / instructions for actions / work appropriate for eliminating the cause of the failure of data transmission, the convenience of the terminal, It is an object of the present invention to provide a terminal capable of improving transmission efficiency and a program for the terminal.
[0007]
[Means for Solving the Problems]
In order to achieve such an object, the present invention stratifies protocols according to their types, and in a terminal that performs packet transmission via a radio base station, the terminal determines whether or not data transmission / reception has been interrupted for a certain period of time. A failure detection means for detecting, a failure occurrence detecting means for detecting a layer where an abnormality has occurred and causing the disconnection, and determining a reason for the failure of data transmission / reception based on the detected hierarchy; and A failure reason notifying means for notifying the user of the reason why the transmission / reception of the data determined by the disconnection reason determining means is interrupted and / or the work to be performed by the user to return to the data transmission enabled state; It is characterized by.
By utilizing this determination result, the terminal can avoid the disconnection state, thereby eliminating congestion of the network network (base station-terminal line or server-terminal network network) to which the terminal belongs. It is also possible to improve the transmission efficiency of the entire network and terminals.
[0008]
The present invention is characterized in that the hierarchy includes a physical layer, a data link layer, a network layer, a transport layer, a session layer, a presentation layer, and an application layer. Also, the non-delivery reason determining means, when abnormality occurs in the network layer following hierarchy interruption cause is determined to be the line, when the network layer following hierarchy is normal, non-deliverable cause the server It is characterized by judging that there exists.
For example, the disconnection detecting unit can determine that the communication is interrupted for a certain period of time when a response is not input within a predetermined time after transmitting a request to the server.
For example, the disconnection reason determination means can determine the reason for disconnection by detecting whether or not the layers below the layer 3 in the OSI basic reference model are normal. That is, when an abnormality occurs in the layer 3 or lower, it can be determined that the cause of the disconnection is in the line (for example, “the line is congested”). If each layer below layer 3 is normal, it can be determined that the server has a cause (for example, “the server is congested”).
[0009]
Further, the terminal includes means for notifying the user of the reason why the data transmission / reception is interrupted and / or the work contents to be performed by the user to return to a state where data transmission is possible (disabling reason notifying means). It is preferable.
This is because the user can determine an appropriate operation (operation) for making the terminal communicable.
[0010]
Note that the work (operation) that should be performed by the user to return to a state where data transmission is possible may be recommended to, for example, “switch the zone” when the cause of the disconnection is in the line. Further, when the cause of the disconnection is in the server, for example, it may be recommended to “re-access after a while (later)”.
[0011]
Furthermore, it is preferable that the terminal has a zone switching means and switches the zone when the user gives an instruction to switch the zone.
This is because when the cause of the disconnection is in the line, the terminal can be changed to a state where data transmission is possible by switching the “zone”.
[0012]
According to the present invention, in a program that stratifies protocols according to their types and causes a terminal that performs packet transmission via a wireless base station to execute the following processing, the communication detection is performed to detect whether or not data transmission / reception has been interrupted for a certain period of time. A non-delivery reason determination process for detecting a hierarchy in which an abnormality has occurred and the cause of the disconnection is detected, and determining a reason for the failure to transmit and receive data based on the detected hierarchy; And a reason for notifying the user of the work contents to be performed by the user in order to return to the state where the data transmission / reception is possible and / or the reason why the data transmission / reception determined by the user is disabled. .
[0014]
The present invention is characterized by having a zone switching process for switching a zone when an instruction to switch the zone is given by a user.
[0015]
Note that the terminal is preferably a mobile terminal such as a mobile phone device, a PDA (Personal Digital Assistant), a notebook-type or laptop-type small general-purpose computer (so-called personal computer). This is because a mobile terminal generally employs a wireless communication system for communication with a server.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a terminal and a program in a processing method when a terminal that performs packet transmission by wireless communication according to the present invention is disconnected for a certain period of time will be described in detail by embodiments. First, the terminal will be described with reference to the drawings.
[0017]
(Terminal)
The terminal is a terminal that performs wireless packet communication with the base station, and includes at least a disconnection detection unit and a disconnection reason determination unit. Further, it preferably has a disconnection reason notification means, and more preferably has a zone switching means.
[0018]
The disconnection detecting means detects whether or not data communication has been interrupted for a certain period of time.
The disconnection reason determination means determines the reason for disconnection when data communication is interrupted for a certain period of time.
The disconnection reason notification means notifies the user of the reason for the disconnection.
The zone switching means switches zones when a zone switching instruction is input from a user.
[0019]
The reason why the communication failure is notified by the failure reason notification means is because the work (operation) performed by the user for returning the terminal to a state where data transmission is possible differs depending on the reason. .
[0020]
When a failure occurs in a layer below the layer 3 according to the OSI basic reference model and the communication is disconnected, the cause of the disconnection is in the line. For example, the line may be congested.
In this case, if the user changes the zone, there is a possibility that the terminal can be returned to a state where data transmission is possible. This is because in other zones, there is a possibility that a problem does not occur (does not occur) in the hierarchy below layer 3.
[0021]
On the other hand, when a failure occurs in a layer of layer 4 or higher and the communication is interrupted, the cause of the disconnection is the server. For example, there is a high possibility that the server is disconnected due to congestion. In this case, if the user performs data transmission at different timings, the user may be able to return the terminal to a state where data transmission is possible. This is because if the time is delayed, the problem of the server (problems such as congestion) may be solved.
[0022]
In addition, it is preferable that a failure reason notification means notifies the user of a desirable work to be taken in addition to the reason for failure or instead of the reason for failure.
This is because a general user does not know the countermeasure (work) for this reason even if the reason for the disconnection is known.
[0023]
Various methods can be adopted as the method for notifying the user of the reason and / or the content of the reason for failure.
For example, the reason and / or content may be notified by displaying characters, symbols, still images, moving images, etc. on the display unit of the terminal and / or the display unit connected to the terminal. If the image is displayed in this way, the user can easily understand the reason and / or the content. This is because image information such as documents, pictures, and moving images is usually more easily transmitted to humans than information in other formats.
The sound may be generated and notified to the user by using a sound generator (speaker, earphone, etc.) of the terminal and / or a sound generator connected to the terminal. For example, the reason and / or contents may be notified by voice (words), or a sound (such as a buzzer sound) representing the reason and / or contents may be generated. If the voice is displayed in this way, the user can understand the reason and / or the content without bothering to look at the display unit.
Further, notification may be performed by vibrating the terminal or the vibration unit using a vibrator, or notification may be performed by generating light from a laser diode or the like. If notified by vibration, for example, even if the terminal is stored in a storage case or the like, the user can understand the reason and / or the content. In addition, the notification method for generating light from a laser diode or the like can also reduce power consumption compared to other notification methods.
Furthermore, a combination of these notification methods may be employed. As a result, the above reason and / or contents can be surely conveyed to the user.
[0024]
As described above, the terminal can notify the user of the reason why the packet communication cannot be performed for a certain period of time, thereby allowing an operation (work) corresponding to the reason to be performed.
Therefore, when packet communication becomes impossible due to an increase in traffic in the server, it is possible to allow the user to access with later usage time (later). If the user does this, the server will reduce traffic. This in turn leads to an improvement in user convenience.
In addition, when packet communication becomes impossible due to an increase in traffic in the zone, the user can be accessed by changing the zone of the mobile terminal. If the user performs such an operation, the user may be able to access from the portable terminal. Moreover, there is a possibility that an increase in traffic in the zone can be reduced.
Therefore, it is possible to improve transmission efficiency in the terminal, the line to which the terminal belongs (layer 3 or lower layer network), and the terminal-server network (layer 4 or higher layer network). Furthermore, the convenience of the terminal and these networks may be improved.
Next, it demonstrates in detail using the mobile telephone apparatus which is an example of the said terminal.
[0025]
FIG. 1 shows an internal configuration example of the mobile phone device.
In FIG. 1, the mobile phone device includes a lower layer unit 1, a handler unit 2, a display / operation unit 3, and an application unit 4.
[0026]
The lower layer unit 1 divides and assembles packet data. Also, it is determined whether or not there is an abnormality in the layers 1, 2, and 3 in the OSI basic reference model. Further, when a zone switching instruction is input, the zone is switched.
The handler unit 2 performs control to transmit data to a radio base station via a radio device (not shown).
The display / operation unit 3 notifies the application unit 4 or the handler unit 2 of an instruction input from the user. Further, in accordance with an instruction from the application unit 4 or the handler unit 2, predetermined images such as characters, symbols, still images, and moving images are displayed on the screen.
The application unit 4 creates packet data in accordance with the contents of instructions from the user input via the display / operation unit 3. The packet data input from the server via the handler unit 2 is decoded. The decrypted data is displayed on the display / operation unit 3 according to the type.
The processing flow of the mobile phone device having the above configuration will be described with reference to the sequence diagram shown in FIG.
[0027]
(Processing during normal use: Processing when data transmission is possible)
When an instruction to access the server is input from the user, the display / operation unit 3 notifies the application unit 4 of this instruction.
When this notification is input, the application unit 4 creates data according to the notification. This data is input to the lower layer unit 1.
The lower layer unit 1 divides the data into a predetermined size (a size defined by the communication environment) and creates packet data (converts it into packet data). The packet data is input to the handler unit 2.
The handler unit 2 transmits the input packet data to a predetermined server via the base station.
[0028]
When packet data such as a response to the data is input from the server, the handler unit 2 inputs the packet data to the lower layer unit 1.
The lower layer unit 1 decodes the input packet data. The decrypted data is input to the application unit 4.
The application unit 4 instructs the display / operation unit 3 to display this data on the screen.
The display / operation unit 3 displays the data on the screen in accordance with this instruction.
[0029]
(Process when there is no response for a certain period of time)
The application unit 4 starts a timer when transmitting data for requesting a response to the server. When the timer times out, that is, when there is no response from the server for a certain time, an error notification is issued to the lower layer unit 1.
The lower layer unit 1 receives the error notification and checks the state of each layer (lower layer).
[0030]
When there is no abnormality in each layer, the lower layer unit 1 notifies the application unit 4 of a response “error response (no abnormality)” including information indicating that there is no abnormality.
When this response is input, the application unit 4 uses the display / operation unit 3 to notify the user that “communication has been interrupted due to server congestion”. That is, the user is notified of the reason why the data transmission is interrupted.
The user can distribute the use of the time zone by this notification.
[0031]
When the lower layer unit 1 finds at least one layer below the layer 3, the lower layer unit 1 notifies the application unit 4 of a response “error response (abnormal)” indicating that there is an abnormality.
When this response is input, the application unit 4 uses the display / operation unit 3 to notify the user that “communication has been interrupted due to line congestion”. That is, the user is notified of the reason why the data communication is interrupted.
Upon receiving the notification, the user can instruct the portable terminal to move the zone. The display / operation unit 3 inputs this instruction to the lower layer unit 1. The lower layer unit 1 performs zone switching.
Next, the processing flow of the lower layer unit 1 in the above sequence will be described with reference to FIG.
[0032]
(Layer status check flow)
Upon receiving an error notification from the application unit 4, the lower layer unit 1 starts checking the state of the layer 3 unit. This check is performed for each layer.
(Step S1) Check whether a physical channel for layer 3 check packet communication is open. This is because an error has occurred in layer 3 when the physical channel is closed (step S1 / NO).
(Step S2) Check whether layer 2 check retransmission control or the like has occurred. This is because an error has occurred in layer 2 when retransmission control or the like has occurred (step S2 / NO).
(Step S3) Layer 3 check It is checked whether or not random access control or the like has occurred. This is because an error has occurred in layer 1 when random access has occurred (step S3 / NO).
[0033]
If there is no abnormality in layers 1, 2, and 3 in the above checks (step S1 / YES, step S2 / YES, and step S3 / YES), the lower layer unit 1 sends an “error response ( No abnormality) ”is notified (step S4).
If there is an error in at least one of layers 1, 2, and 3 (step S1 / NO, step S2 / NO or step S3 / NO), the application unit 4 is notified of an “error response (abnormal)” (step S5).
[0034]
The order of steps S1 to S3 is not limited to the order in FIG. That is, any one of layers 1 to 3 may be checked first.
Next, the above program will be described in detail.
[0035]
(program)
The program causes a terminal that performs packet transmission by wireless communication to execute the procedures (1) to (2). Preferably, the procedures (1) to (3) are executed. More preferably, the procedures (1) to (4) are executed.
(1) A procedure for detecting whether or not data transmission / reception has been interrupted for a certain period of time.
(2) A procedure for determining the reason why data transmission / reception is interrupted.
(3) A procedure for notifying the user of the reason why the data transmission / reception has been interrupted and / or the work to be performed by the user in order to return to a state where data transmission is possible.
(4) A procedure for switching the zone when the user is instructed to switch the zone.
This program realizes the functions / effects as the above-described terminal by the above procedure.
[0036]
(1) A procedure for detecting whether or not data transmission / reception has been interrupted for a certain period of time.
This procedure causes the terminal to execute the function of the disconnection detecting means.
[0037]
(2) A procedure for determining the reason why data transmission / reception is interrupted.
This procedure causes the terminal to execute the function of the reason determination means.
[0038]
(3) A procedure for notifying the user of the reason why the data transmission / reception has been interrupted and / or the work to be performed by the user in order to return to a state where data transmission is possible.
This procedure causes the terminal to execute the function of the reason notification means.
[0039]
(4) A procedure for switching the zone when the user is instructed to switch the zone.
This procedure causes the terminal to execute the function of the zone switching means.
[0040]
The preferred embodiment of the present invention has been described above. However, the above-described embodiment is an example for explaining the present invention, and the scope of the present invention is not limited to this embodiment. Those skilled in the art can implement the present invention in various other forms in which various modifications, improvements, modifications, simplifications, and the like are added to the above-described embodiments without departing from the gist of the present invention.
[0041]
【The invention's effect】
As is clear from the above description, the user can know whether the server itself is busy or the line is busy, and can respond according to the contents, so it is considered that the convenience of the user is improved.
In addition, it is expected to improve transmission efficiency by switching zones when the line is congested.
[Brief description of the drawings]
FIG. 1 is a block diagram for explaining an internal configuration example (software configuration example) of a mobile phone device (mobile terminal) according to the present invention.
FIG. 2 is a sequence diagram for explaining a processing example of the mobile phone device (mobile terminal) in FIG. 1;
FIG. 3 is a flowchart for explaining a processing example of a lower layer unit 1 in FIG. 1;
[Explanation of symbols]
1 Lower layer part 2 Handler part 3 Display / operation part 4 Application part

Claims (6)

In a terminal that stratifies protocols by type and performs packet transmission via a radio base station,
The terminal includes a disconnection detecting means for detecting whether transmission / reception of data has been disabled for a certain period of time,
A failure reason determination means for detecting a layer where an abnormality has occurred and causing a disconnection, and determining a reason why transmission / reception of data is blocked based on the detected layer,
A failure reason notifying means for notifying the user of the reason why the transmission / reception of the data determined by the disconnection reason determining means is interrupted and / or the work content to be performed by the user to return to the data transmission enabled state; A terminal characterized by that.   The terminal according to claim 1, wherein the hierarchy includes a physical layer, a data link layer, a network layer, a transport layer, a session layer, a presentation layer, and an application layer. The disconnection reason determination means includes
When an abnormality occurs in a layer below the network layer, it is determined that the cause of the disconnection is a line,
The terminal according to claim 2, wherein if the hierarchy below the network layer is normal, it is determined that there is a cause of disconnection of the server. The terminal further includes zone switching means,
The terminal according to any one of claims 1 to 3, wherein the zone is switched when an instruction to switch the zone is given by a user. In a program that stratifies protocols by type and causes a terminal that performs packet transmission via a wireless base station to execute the following processing:
An interruption detection process for detecting whether or not data transmission / reception has been interrupted for a certain period of time;
A failure reason determination process for detecting a layer where an abnormality has occurred and causing a disconnection, and determining a reason why transmission / reception of data is blocked based on the detected layer,
A failure reason notification process for notifying the user of the reason why the transmission / reception of the data determined by the disconnection reason determination process has failed and / or the work contents to be performed by the user to return to a state where data transmission is possible. A program characterized by that.   6. The program according to claim 5, further comprising a zone switching process for switching zones when the user is instructed to switch zones.

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