JP2005101897A - Mobile terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile terminal capable of preventing concentration of traffic, even if a periodic position registration means is introduced to a mobile network. <P>SOLUTION: Information of a setting time A set to a periodic timer is transmitted to each mobile wireless terminal, at a time t0 when the periodic position registration means is introduced. Each mobile wireless terminal receiving the information calculates a timer time δ, on the basis of identification information of its own mobile wireless terminal, and the setting time A and sets the timer time to the periodic timer. Each mobile wireless terminal carries out position registration at a time t1, after the lapse of the calculated unique timer time δ and performs position registration in a timing by each setting time A thereafter. Thus, each mobile wireless terminal can conduct position registration in a distributing manner. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a portable wireless terminal capable of preventing traffic concentration.

Since the incoming call cannot be received if the position of the mobile radio terminal is unknown when the mobile radio terminal is received, the position of the mobile radio terminal is conventionally moved to the mobile communication network every time the registered area on the routing in the mobile communication network is moved. I am trying to register. That is, the portable wireless terminal registers the position of the portable wireless terminal on the network side for each set area unit during standby. This control is position registration control. Normally, when the position information broadcast on the broadcast channel changes, the mobile radio terminal performs position registration. In this case, the area number indicating the location registration area is notified from the base station via the wireless line, and the portable wireless terminal always has the notified area number stored in its own terminal and the currently notified area number, When a mismatch is found, a location registration signal is sent from the portable wireless terminal to the mobile communication network. This location registration signal is sent to the mobile communication switching center (MSC) via the base station. The MSC converts the mobile communication network into location information that can be routed, and sends the location information to an HLR (Home Location Register). The HLR stores the position information corresponding to the mobile radio terminal number. Thereby, even if the mobile wireless terminal moves, it becomes possible to know the moved position by referring to the HLR.
Further, even when the portable wireless terminal does not move in the registration area on the routing, the portable wireless terminal sends a position registration signal based on the notified area number stored in the terminal itself to the mobile communication network every predetermined period. . As a result, the portable wireless terminal that does not transmit the location registration signal for a predetermined time or longer can be prevented from receiving an incoming call notification, assuming that the power is off.

  By the way, when the mobile communication network to which the mobile radio terminal belongs is constructed for the first time, the mobile radio terminal does not send a location registration signal to the mobile communication network every predetermined period. Therefore, in a mobile communication network in operation, a means (hereinafter referred to as “periodic position registration means”) that causes the portable wireless terminal to send a position registration signal at predetermined intervals even when the mobile communication network does not move is introduced into the mobile communication network. The operation in this case is shown in FIG. In this case, the portable wireless terminal has a periodic timer for sending a location registration signal every predetermined cycle, and before introducing the periodic location registration means into the mobile communication network, the timer time of the periodic timer is It was set to “0”. Then, the periodic position registration means can be introduced into the mobile communication network by setting the timer time of the periodic timer to a significant value. The setting of the periodic timer is not performed by the user but is performed by sending a setting signal to each portable wireless terminal using a control channel or the like in the mobile communication network. Here, if a setting signal for setting the timer time of the periodic timer is sent to each portable wireless terminal at time t0 in order to introduce the periodic location registering means into the mobile communication network, each portable wireless terminal that receives the periodic position registration means At time t0, the timer time A is set. Then, each portable wireless terminal transmits a location registration signal at time t11, which is A time after the period timer expires. Since the transmission of the location registration signal is performed simultaneously from each portable wireless terminal at the timing of time t11, traffic is temporarily concentrated every A hours, which is a problem.

  Accordingly, an object of the present invention is to provide a portable radio terminal that can prevent traffic concentration even if periodic location registration means is introduced into an active mobile communication network.

  The main feature of the present invention is that periodic location registration is performed in a time distributed to each portable wireless terminal when the periodic location registration means is introduced.

  The portable wireless terminal according to the present invention includes a generating unit that generates a distributed timer value that is distributed according to the identification number information of its own device within a set period, and the distributed unit when the generating unit calculates the distributed timer value. After the timer value is set, there are provided a periodic timer in which a predetermined period is set every time up, and a position registration means for performing position registration every time the period timer expires. As a result, periodic location registration is performed at a distributed timing according to the identification information of the mobile radio terminal that is unique, so that traffic concentration can be prevented even if periodic location registration means is introduced. There is an advantage that can be.

  The purpose of preventing the concentration of traffic even if the periodic location registration means is introduced is realized by performing periodic location registration at a timing distributed to each portable wireless terminal.

An outline of a mobile communication network to which the portable wireless terminal of the present invention belongs is shown in FIG.
In FIG. 1, a mobile radio terminal 1 is a mobile radio terminal used as an information terminal device or a mobile phone, and performs conversations and mail exchanges with other mobile radio terminals and fixed phones via a mobile communication network. In addition to being able to connect to the Internet, you can browse and download resource data. The mobile communication network is provided with a radio access network (RAN) including a radio communication line between the mobile radio terminal 1 and the base station 2, mobile communication switching centers (MSC) 3, 4, 5 and a home location register (HLR) 6. It is composed of a core network (CN) made up of wired communication lines.

  A base station is provided for each area, and position information is regularly broadcast on the broadcast channel from the base station 2 and a base station (not shown). The portable wireless terminal 1 performs location registration assuming that the routing area changes when the received notification information changes. A change in the notification information is detected as follows. From the base station including the base station 2, the area number indicating the location registration area is informed by the broadcast information, and the mobile radio terminal 1 is always informed with the informed area number stored in its own terminal. Are compared with each other, and when there is a mismatch, it is detected that the area on the routing to which the own device has changed has changed. When performing location registration for belonging to the area of the base station 2, a location registration signal is sent from the mobile radio terminal 1 to the mobile communication network. This location registration signal is sent to the mobile communication switching center (MSC) 3 via the base station 2, and the MSC 3 converts the location within the mobile communication network into location information that can be routed and sends the location information to the HLR 6. Then, the position information is stored in correspondence with the portable wireless terminal number. Thereby, even if the portable wireless terminal 1 moves, it becomes possible to know the moved position by referring to the HLR 6.

Even when the mobile wireless terminal 1 does not move, a location registration signal based on the notified area number stored in the terminal itself can be transmitted to the mobile communication network at predetermined intervals. In this way, the mobile wireless terminal that does not transmit the location registration signal for a predetermined time or more can be prevented from receiving an incoming call notification, assuming that the power is off.
In this case, when a mobile communication network to which a large number of mobile radio terminals such as the mobile radio terminal 1 belongs is constructed for the first time, the mobile radio terminal sends a location registration signal to the mobile communication network every predetermined period. Did not go. Therefore, in order to cause the mobile wireless terminal to send a location registration signal every predetermined cycle even when the mobile station does not move, means for sending a location registration signal to the mobile radio terminal every predetermined cycle in an active mobile communication network ( Hereinafter, “periodic location registration means”) must be introduced into the mobile communication network. The operation of introducing the periodic location registration means according to the present invention is shown in FIG.

  The portable wireless terminal 1 has a periodic timer for transmitting a location registration signal at predetermined intervals. Before the periodic location registration means is introduced into the mobile communication network, the timer time of the periodic timer is “0”. ”Was set. Then, the periodic position registration means can be introduced into the mobile communication network by setting the timer time of the periodic timer to a significant value. The setting of the periodic timer is not performed by the user, but is performed by sending a setting signal to each portable wireless terminal such as the portable wireless terminal 1 using a control channel or the like in the mobile communication network. Here, it is assumed that a setting signal for setting the periodic timer to time A is sent to each portable wireless terminal at time t0 in order to introduce the periodic location registration means into the mobile communication network. In each portable wireless terminal including the portable wireless terminal 1 that has received this, the timer time δ is set to the periodic timer of the own device at time t0. This timer time δ is a distributed timer time unique to each portable wireless terminal. In each portable wireless terminal, a location registration signal is transmitted at time t1 after δ hours when the period timer expires. The δ time set in the periodic timer of each portable wireless terminal is generated according to the identification information of the portable wireless terminal, and the timer time δ is a distributed timer time unique to each portable wireless terminal, Since the timings of t1 are distributed, the transmission of the location registration signal is performed without being concentrated. When time is up at time t1, time A according to the set signal is set in the periodic timer, and the location registration signal is transmitted at time t2 when time A is up. In this way, after the periodic timer first times up when the periodic location registration means is introduced, the time A according to the set signal is set in the periodic timer every time up, and periodically every time A. A location registration signal is transmitted.

Here, an example of a calculation formula for generating the timer time δ is shown below. However, the timer time δ is a second converted value, and the unit of time A is time.
δ = MSN5-R * A * 3600 (1)
In the equation (1), MSN5 is the last five digits of the telephone number of the portable wireless terminal, and R is an integer value obtained by dividing MSN5 by time A converted to seconds. As a specific example, when calculating the timer time δ, when the telephone number is 0903930916 and the time A is 1 hour,
R = <09916/1 * 3600> = 2
And
δ = 099616-2 * 1 * 3600 = 2716 sec
Thus, the first location registration after introduction is performed in 2716 seconds from the portable wireless terminal whose telephone number is 0903930916.
If the phone number is 09011111111 and time A is 1 hour,
R = <11111/1 * 3600> = 12
And
δ = 11111-12 * 1 * 3600 = 311 sec
Thus, the first location registration after introduction is performed after 311 seconds from the portable wireless terminal having the telephone number 09011111111. In this way, the timer time δ is distributed in seconds within the set time A according to the telephone number. Therefore, the first location registration after introduction is performed in a distributed manner according to the telephone number of each portable wireless terminal within the set time A. Then, the subsequent periodic location registration is performed at the timing of every time A. However, since the timer time δ is different, the subsequent periodic location registration is also performed in a distributed manner according to the telephone number of each portable wireless terminal. It becomes like this.
Note that the identification information of the portable wireless terminal is not limited to the telephone number, and may be MSI uniquely given to the portable wireless terminal.

In the portable wireless terminal of the present invention, as described above, the unique timer time δ can be generated using the identification information of the portable wireless terminal, and traffic due to periodic location registration can be distributed. .
When mobile wireless terminals are divided into a plurality of groups in the mobile communication network, the concentration of traffic is prevented by changing the predetermined timer time set for each group when the periodic location registration means is introduced. You may do it. In addition, traffic concentration may be prevented by changing a predetermined timer time set when the area of the mobile communication network is introduced as a unit. In this case, a predetermined timer time is set every time the periodic timer expires. The setting information of the predetermined timer time to be set may be set in the periodic timer of the portable wireless terminal belonging to the area by broadcasting from the base station in the area.

  In the above description, periodic location registration has been described. However, the location is assumed to be a point that moves from outside the area of the exit abandoned communication network such as a subway. At such a point, mails that could not be transmitted when the mobile wireless terminal was out of service range are transmitted all at once, and traffic is concentrated. Therefore, if the time A to be set is set to about 180 seconds, the above equation (1) is calculated, and the generated timer time δ is applied to the above-described periodic timer so that mail is transmitted after the timer time δ. The mail can be transmitted after the distributed time inherent in the portable wireless terminal, and traffic concentration can be prevented.

It is a figure which shows the outline | summary of the mobile communication network to which the portable radio | wireless terminal concerning this invention belongs. FIG. 10 is a diagram showing an operation when introducing a means for sending a location registration signal to a mobile radio terminal every predetermined period even when the mobile radio network to which the mobile radio terminal according to the present invention belongs does not move. In a conventional mobile communication network, it is a figure which shows the operation | movement at the time of introducing the means to send a position registration signal to a portable radio | wireless terminal for every predetermined period, even when it does not move.

Explanation of symbols

1 Mobile radio terminal 2 Base station 3, 4, 5 MSC
6 HLR

Claims (3)

A portable wireless terminal having a function capable of performing location registration every predetermined cycle,
Generating means for generating a distributed timer value that is distributed in accordance with the identification number information of its own device within a set period when it is detected that an instruction to set the predetermined period is detected;
The distributed timer value is set when the generating means generates a distributed timer value, and thereafter the periodic timer is set with the predetermined period every time up,
At least location registration means for performing location registration every time the period timer expires;
A portable wireless terminal comprising: A portable wireless terminal having a function capable of performing location registration every predetermined cycle,
A period timer in which the predetermined period instructed when it is detected that an instruction to set the predetermined period is detected from the area to which it belongs, and thereafter the predetermined period is set every time up, ,
At least location registration means for performing location registration every time the period timer expires;
A portable wireless terminal comprising: A portable wireless terminal having a function capable of sending and receiving mail,
Generating means for generating a distributed timer value that is distributed in accordance with the identification number information of the own device within a predetermined period when it is detected that the mobile device has moved from outside the service area to within the service area;
A periodic timer in which the distributed timer value generated by the generating means is set;
A transmission means for transmitting an unsent mail when the period timer expires;
A portable wireless terminal comprising:

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