JP3223006B2 - Radio paging system and radio paging receiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for wireless communication in which at least one point moves. In particular, the present invention relates to improvement in transmission efficiency of a signal used in a radio paging system and power saving technology of a radio paging receiver.

[0002]

2. Description of the Related Art A conventional example will be described with reference to FIGS. FIG. 14 is an overall configuration diagram of the wireless calling system.
FIG. 15 is a diagram showing a format of a call signal sequence used in the conventional example. In the radio calling method, as shown in FIG.
In response to a call request from the telephone terminal device 5, a call signal sequence is transmitted from the base station 1, and the radio call receiver 2 is called.

[0005] FIG. 15 shows the configuration of a paging signal sequence transmitted from base station 1. This calling signal sequence is shown in FIG.
As shown in FIG.
It is composed of frame signals having a period of T seconds in which n are connected to each other. Further, as shown in FIG. 15B, the signals for each of the sub-frame signals F1 to Fn are divided into call signals S1 to Sk and k address signals A1i to Aki serving as call codes of the radio call receiver 2. And the address signals A1i to
It consists of message signals M1i to Mki following Aki.

The radio paging receiver 2 is divided into n groups G1 to Gn, and the radio paging receivers 2 belonging to the group Gj receive only one subframe signal Fj during the reception time. Each paging signal in the frame signal Fj is received. At this time, if the address signal Akj of the calling signal matches the address number of the own radio paging receiver 2, a ringing tone is emitted from the own radio paging receiver 2 and the call signal follows the own address signal Akj. The message signal Mkj is displayed on the liquid crystal display. A system in which the reception state is achieved only by the subframe signal Fj allocated to the radio paging receiver 2 is called an intermittent reception system, and a paging signal to each radio paging receiver 2 is usually transmitted only several times a day. Accordingly, it is possible to extend the battery life by utilizing the fact that it is not necessary to receive most of the time. Here, in each of the paging receivers 2 belonging to the groups G1 to Gn, the subframe signals F1 to Fn to be received by themselves are defined as home subframe signals for the respective paging receivers 2. That is, if the paging receiver 2 belongs to the group Gi, the subframe signal Fi becomes a home subframe signal for the paging receiver 2, and if the paging receiver 2 belongs to the group Gj, the subframe signal Fi Fj is a home subframe signal for the radio paging receiver 2.

[0005]

However, in the above-mentioned conventional paging system, the information that can be transmitted to a certain paging receiver has an efficiency of at most α / T including an address signal, and the transmission efficiency is poor. However, there is a problem that it is unsuitable for transmission of a long message signal.

As a method for solving this problem, when transmitting information to a radio paging receiver belonging to a group Gi, a subframe signal F which is a home subframe signal is used.
After i, the next successive subframe signal F (i
+1) to transmit the message signal Mk (i + 1) to improve the transmission efficiency. In order to further improve the efficiency, the subframe signals F (i + 2), F (i + 3),.
Also transmits a message signal. However, when there is a paging signal to be transmitted to the radio paging receiver belonging to the group G (i + 1), the subframe signal F (i +
Since the call signal cannot be transmitted in 1), the call signal is transmitted at least T seconds later, and there is a problem that transmission delay increases.

Further, one subframe signal F1, F1
If all of 2,..., Fn are occupied by a paging signal to one radio paging receiver, other radio paging receivers that do not need to receive this paging signal need to perform a receiving operation. In spite of the absence, unnecessary power is consumed because it operates at a predetermined timing.

The present invention has been made in view of such a background, and does not cause a decrease in transmission efficiency and an increase in transmission delay due to an increase in the amount of information to be transmitted. An object of the present invention is to provide a radio paging system suitable for intermittent reception without increasing power.

[0009]

SUMMARY OF THE INVENTION A first aspect of the present invention is as follows.
A base station that transmits a frame signal having a repetition period T; and a radio paging receiver that receives the frame signal, detects that its own address signal is included therein, and excites a paging output, The frame signal includes a plurality of subframe signals F1 to Fn.
One of the numbers i among n is assigned as a group number i, and an address signal for a receiver to which the group number i is assigned is a radio paging method in which a subframe signal Fi is transmitted as a home subframe signal. .

Here, a feature of the present invention is that, when a message signal following an address signal addressed to one receiver exceeds a length that can be accommodated in a home subframe signal, the base station transmits the message. Means for dividing the signal into a plurality of parts and transmitting the divided message signal in a sub-frame signal of another group number transmitted after the home sub-frame signal, wherein the radio paging receiver comprises: When a message signal is divided and accommodated over a plurality of subframe signals, a means for combining and restoring the message signals accommodated in the plurality of subframe signals is provided.

Preferably, the receiver is provided with means for intermittently receiving a home subframe signal corresponding to the group number assigned to the receiver in synchronization with the period T.

Preferably, the base station includes means for transmitting the number of the subframe signal in which the divided message signal is transmitted to the home subframe signal of the destination receiver.

[0013] When the receiver receives the number of the subframe signal in which the divided message signal is transmitted in the home subframe signal, the receiver intermittently receives the subframe signal of that number and generates a message signal addressed to itself. It is desirable to have means for receiving.

Preferably, the base station includes means for transmitting the number of divided message signals transmitted thereafter in a subframe signal.

The base station includes means for transmitting a signal indicating the end of transmission of the divided message signal and / or a signal for announcing the end, and the receiver includes a signal indicating the end or a signal for announcing the end. Alternatively, it is desirable to stop receiving sub-frame signals other than the home sub-frame signal and execute a call termination procedure in accordance with the disappearance of the own device address signal.

If the address signal assigned to the receiver is used repeatedly for a plurality of groups, the base station may replace the subframe with the home subframe within another group of subframes to which the divided message signal is transmitted. Means for transmitting a group designating signal indicating that the signal is directed to a receiver belonging to a group other than the group to be a frame, wherein the receiver has its own address signal when the group designating signal indicates another group. It is desirable to provide a means for prohibiting the response to

[0017] It is preferable that the receiver includes means for stopping reception of the subframe even if the receiver is a home subframe when the group designation signal indicates another group.

A second aspect of the present invention is a radio paging receiver used in this radio paging system.

[0019]

The length of the message signal that can be accommodated in the paging signal in one subframe signal depends on the congestion state at that time, but is naturally limited. Therefore, when transmitting a message signal exceeding this length, the message signal is divided, and the remaining message signal is accommodated in a free paging signal in the subsequent subframe signal. At this time, information indicating that the remaining message signal is accommodated in another subsequent subframe signal is inserted into the paging signal in the subframe signal accommodating the first message signal. . Further, information indicating the end of the message signal can be inserted after the message signal contained in the last subframe signal.

Although the paging receivers are grouped for each subframe signal, the same address signal may be used in each group. At this time, if the self-divided message signal is accommodated in another subframe signal, a radio paging receiver having the same address in another group may erroneously receive it. In order to avoid such an error, the message signal obtained by dividing the group designation signal as identification information indicating the first subframe signal in the paging signal in the subsequent other subframe signal containing the remaining message signal Can be inserted together with a paging signal in another subframe signal in which is accommodated.

When another subframe signal accommodating the divided message signal covers a plurality of frame signals, the paging signal in the subframe signal contained in the first frame signal contains the divided message signal. It is also possible to insert information on the number of continuations of the frame signal including the subframe signal to be performed. Based on this continuous number information, the radio paging receiver that should receive this message signal performs reception several times continuously during the reception time of the subframe signal included in the corresponding frame signal. In addition, a radio paging receiver not related to this message signal
According to the continuous number information, the reception of the frame signal which is not related to itself is stopped for the reception time, and the intermittent reception can be performed.

[0022] Thus, radio transmission suitable for intermittent reception without causing a decrease in transmission efficiency and an increase in transmission delay due to an increase in the amount of transmitted information and without increasing power consumption of the radio paging receiver. A calling method can be realized.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a configuration diagram of a main part of a base station and a radio paging receiver used in the first embodiment of the present invention. FIG.
FIG. 3 is a diagram showing a format of a call signal sequence according to the first embodiment of the present invention.

According to the present invention, a base station 1 for transmitting a frame signal having a repetition period T, receiving the frame signal, detecting that its own address signal A1i to Aki is included in the base station 1, and generating a call output. Exciting radio paging receiver 2
The frame signal includes a plurality of sub-frame signals F1 to Fn, and the radio paging receiver 2 has numbers 1 to n
Is assigned as a group number i, and the paging receiver 2 to which the group number i is assigned
Is a radio paging system in which the sub-frame signal Fi is transmitted as a home sub-frame signal.

Here, the feature of the present invention is that the base station 1 determines how long the message signal Mki following the address signal Aki addressed to one radio paging receiver 2 can be accommodated in the home subframe signal. If it exceeds, the message signal Mki is changed to a plurality of message signals Mki, 1.
And Mki, 2. A message division unit and a message insertion unit for transmitting the divided message signal into a subframe signal of another group number j transmitted after the home subframe signal; When the received message signals Mki, 1 and Mki, 2 are divided and accommodated over a plurality of subframe signals Fi and Fj, the message signal contained in the plurality of subframe signals Fi and Fj Mki, 1 and M
It has a message storage unit 20 and a message synthesis unit 22 as means for synthesizing and restoring ki, 2.

The radio paging receiver 2 synchronizes with the period T and assigns the group numbers 1 to 1 assigned to the radio paging receiver 2.
An intermittent reception control unit 23 is provided as means for intermittently receiving a home subframe signal corresponding to n.

The base station 1 converts the sub-frame designating signal AS (f) including the number of the sub-frame signal to which the divided message signal is transmitted, into the home sub-frame signal of the radio paging receiver 2 as its destination. An insertion display control unit 14 is provided as a transmission unit.

Radio paging receiver 2 transmits subframe signal Fj to which divided message signal Mki, 2 is transmitted.
Is received in the sub-frame signal Fi which is the home sub-frame signal, the sub-frame signal Fj of that number is intermittently received and the message signal M addressed to itself is received.
A means for receiving ki, 2 is provided.

The first embodiment of the present invention relates to a radio paging receiver 2
A case will be described in which the address signal Aki, which is a call code assigned to, is unique to the radio paging receiver 2 and the same address signal Aki is not used between groups. The group Gi of the paging receiver 2 belongs to the subframe signal Fi, and transmits the message signal Mki to the paging receiver 2 having the address signal Aki. Therefore, the home sub-frame signal of the paging receiver 2 is the sub-frame signal Fi.

When it is determined that the message signal Mki cannot be transmitted by the call signal Sk in the sub-frame signal Fi, the message signal Mki is divided and transmitted. Here, the message signal Mki is changed to the message signal Mk.
i, 1 and Mki, 2. For this reason, as shown in FIG. 2B, the normal address signal Ak
i, a paging signal S1 to the radio paging receiver 2
ＳSk is set for another subframe signal Fj. Here, the sub-frame signals F1 to Fn that function like the sub-frame signal Fj are defined as slave sub-frame signals. A sub-frame designation signal AS for setting a sub-frame signal Fj that is a sub-frame signal
(F), after transmitting f = j, the divided message signal Mk
Send i, 1. Slave subframe designating signal AS (f)
, The subframe signal Fj as the subframe signal
Is set, and the paging receiver 2 belonging to the group Gi can receive the paging signal in the sub-frame signal Fj.

The sub-frame signals F1, F2,..., Fn to be set as the sub-frame signals can be any of a plurality of sub-frame signals F1, F2,. , F
2,..., Fn can be set arbitrarily.

Next, in the subframe signal Fj set as the subframe signal, as shown in FIG.
An address signal Aki is transmitted, and the divided message signal Mki, 2 is transmitted. Here, since the address signal Aki differs for each group Gi, there is no sharing of the address signal Aki in the other groups Gj belonging to the subframe signal Fj, and even if the address signal Aki is transmitted in the subframe signal Fj, an error occurs. Call does not occur. The radio paging receiver 2 stops receiving the sub-frame signal in accordance with the disappearance of the address signal Aki, and executes a call termination procedure. Hereinafter, when a plurality of sub-frames are used, the message signals Mki,
1 and Mki, 2 are inserted into the sub-subframes after the sub-frame into which the message signal Mki, n (n ≧
It is assumed that 3) is inserted.

Next, the receiving procedure of the paging receiver 2 in the first embodiment of the present invention will be described with reference to FIG. FIG.
5 is a flowchart showing a receiving procedure of the radio pager 2 according to the first embodiment of the present invention. In the reception time of the subframe signal Fi that is the home subframe signal, (S
1) The receiving state is entered (S2), and detection of the address signal Aki is started (S3). The address signal Aki cannot be detected, and the stored message signal Mki,
If there is no 1 or Mki, 2 or Mki, n (S10), the receiving operation is terminated (S12). Also, the stored message signal Mki, 1 or Mki, 2
Or, if there is Mki, n, it sounds and
The stored message signals Mki, 1 and Mki,
2 or Mki, n is displayed (S11).

When the address signal Aki is detected, the sub-frame designation signal AS (f) is detected (S4). When the sub-frame designation signal AS (f) cannot be detected, a sound is generated as a normal operation, and the message signal Mki is displayed when the message signal Mki is received (S13). If it is detected, the subframe signal Fj, which is the set subframe signal, is recognized, and the message signals Mki, Mki,
1 is stored (S5), and the reception of the subframe signal Fi, which is the home subframe signal, ends.

Next, it waits until the reception time of the sub-frame signal Fj set in the sub-frame signal (S6), enters the reception state at the reception time of the sub-frame signal Fj (S7), and detects the address signal Aki. (S
8). As described above, the intermittent reception operation in which the reception operation is performed only with the subframe signal Fi that is the home subframe signal and the subframe signal Fj set as the subframe signal is performed. Subsequently, when the address signal Aki is detected, the subsequent message signal Mki, 2 is received and stored (S9). If the subframe signal Fj cannot be detected, the reception of the subframe signal Fj ends (S15). At this time, when there are a plurality of designated sub-subframe signals, the receiving state is set at the time of the designated sub-subframe signal, and the operation of detecting the address signal Aki and storing the message signal Mki, n is repeated. In the time of the sub-frame signal (S6) and the reception time of the sub-frame signal Fi as the home sub-frame signal (S1)
4) If the address signal Aki cannot be detected, the message signals Mki, 1 and Mki, 1
2 or Mki, n is recognized as having been received, and the stored message signals Mki, 1 and Mki, 2 or Mki, n are displayed and sounded (S1).
1).

Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 4 is a flowchart showing a receiving procedure of the radio pager 2 in the second embodiment of the present invention. In the second embodiment of the present invention, similarly to the first embodiment of the present invention, an address signal Ak which is a call code given to the radio paging receiver 2 is provided.
A case where i is unique to the radio pager 2 and the same address signal Aki is not used between groups will be described. It is assumed that the home subframe signal is a subframe signal Fi and the message signal Mki is transmitted to the radio pager 2 having the address signal Aki.
This paging receiver 2 belongs to a group Gi. The paging signal sequence transmitted from the base station 1 is the same as that described in the first embodiment of the present invention.

The paging receiver 2 enters the receiving state (S22) during the receiving time of the sub-frame signal Fi which is the home sub-frame signal (S22), and the address signal A
The detection of ki is started (S23). This address signal A
If no ki is detected and there is no stored message signal Mki, 1 and Mki, 2 or Mki, n (S25), the receiving operation is terminated (S27). Further, the stored message signals Mki, 1 and Mk
When i, 2 or Mki, n is present, a sound is made and the stored messages Mki, 1 and Mk are stored.
i, 2 or Mki, n is displayed (S26).

When the address signal Aki is detected, the sub-frame designation signal AS (f), f = j is detected (S24). This slave subframe designating signal AS
When (f) is detected, the same operation as in the first embodiment of the present invention is performed, and the description is omitted. If it cannot be detected,
Further, the sub-frame designation signal AS
It is checked whether (f) is detected (S28). If the slave sub-frame designation signal AS (f) has not been detected so far, the sound is displayed as a normal operation and the message signal Mki is displayed when the message signal Mki is received (S29). However, when the slave sub-frame designating signal AS (f) is detected, the receiving state is set at the time of the sub-frame signal Fj designated by the detected slave sub-frame designating signal AS (f) (S30). ,
Detection of address signal Aki and message signals Mki, 1 and Mki, 2 already described in the first embodiment of the present invention.
Is stored. At this time, if there are a plurality of designated sub-subframe signals, the reception state is set at the time of the specified sub-frame signal, and the address signal Ak
The operation shifts to an operation of repeating the operation of detecting i and storing the message signal Mki, n.

Next, a third embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. FIG. 5 is a diagram showing a format of a call signal sequence used in the third embodiment of the present invention. FIG. 6 is a flowchart showing a receiving procedure of the radio pager 2 in the third embodiment of the present invention. The third embodiment of the present invention is similar to the first and second embodiments of the present invention in that
A case will be described in which the address signal Aki, which is a call code assigned to, is unique to the radio paging receiver 2 and the same address signal Aki is not used between groups. The home subframe signal is a subframe signal Fi and transmits the message signal Mki to the radio pager 2 having the address signal Aki. This paging receiver 2 belongs to a group Gi.

As in the first and second embodiments of the present invention, the message signal Mki is transmitted as a subframe signal Fi which is a home subframe signal and a subframe signal Fj which is a subordinate subframe signal. At the end of the call signal, following the message signal Mki, 2.

In the receiving procedure, as shown in FIG. 6, during the receiving time of the sub-frame signal Fi which is the home sub-frame signal (S31), the receiving state is set (S32), and the detection of the address signal Aki is started (S33). If the address signal Aki cannot be detected, the receiving operation ends (S
34), when the address signal Aki is detected, the sub-frame designation signal AS (f), f = j is detected (S35). When the sub-frame designation signal AS (f) cannot be detected, the same operation as in the second embodiment of the present invention is performed, but when the sub-frame designation signal AS (f) can be detected, the sub-frame signal Fj which is the set sub-frame signal is recognized. And the message signal Mki, 1 received continuously (S3).
6), the end signal TM is detected (S37). When the end signal TM is detected, it is recognized that the reception of the message signals Mki, 1 and Mki, 2 or Mki, n in the call signal has been completed, and a sound is made and the stored message signals Mki, 1 and Mki, 2 or Mki, n is displayed (S44). Also, the end signal T
If M cannot be detected (S37), the reception of the sub-frame signal Fi, which is the home sub-frame signal, is terminated, and as described in the first and second embodiments of the present invention, the detected sub-subframe designation signal is already detected. A subframe signal F which is a subframe signal specified by AS (f)
At time j (S38), the receiving state is set (S3).
9) Detection of address signal Aki (S40) and storage of message signal Mki, 2 (S41). At this time, if there are a plurality of designated sub-subframe signals, the reception state is set at the time of the designated sub-subframe signal, and the operation of repeatedly detecting address signal Aki and storing message signal Mki, n is repeated. Move to If the address signal Aki cannot be detected, the reception of the subframe signal Fj is terminated (S4).
3). In the slave subframe signal, the address signal Ak
i, and the message signal Mki, 2 or Mk
When i and n are stored, the end signal TM is also detected (S42). If the end signal TM cannot be detected, the detection of the address signal Aki and the message signal M
ki, 2 or Mki, n is stored. At this time, if a plurality of sub-frame signals are specified, the operation shifts to an operation of repeating detection of the address signal Aki and storage of the message signal Mki, n. When the end signal TM is detected, it is recognized that the reception of the call signal has been completed, and the stored message signals Mki, 1 and Mki, 2 or Mki, n are displayed and sounded (S4).
4).

The end signal TM corresponds to a signal for resetting the above-mentioned sub-subframe designation signal AS (f). When the end signal TM is received, the sub-subframe signal AS (f) is called by radio. Receiver 2 is reset.

Next, a fourth embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG. FIG. 7 is a diagram showing a format of a call signal sequence used in the fourth embodiment of the present invention. FIG. 8 is a flowchart showing a receiving procedure of the radio pager 2 in the fourth embodiment of the present invention. In the fourth embodiment of the present invention, a case will be described in which an address signal Aki, which is a call code assigned to the radio call receiver 2, is repeatedly used between groups. The home subframe signal is a subframe signal Fi and transmits the message signal Mki to the radio pager 2 having the address signal Aki. This paging receiver 2 belongs to a group Gi.

As shown in FIG. 7, the message signal Mki
Is a sub-frame signal Fi that is a home sub-frame signal.
If it is determined that transmission cannot be performed by the calling signal Sk, the message signal Mki is divided into message signals Mki, 1 and Mki, 2 or Mki, n and transmitted. Therefore, as shown in FIG. 7 (b), following the normal address signal Aki, a subframe signal Fj which is a subframe signal for transmitting a paging signal to the radio paging receiver 2 is set. Sub-subframe designation signal AS
(F) After transmitting f = j, the divided message signal Mki, 1 is transmitted. Slave subframe designation signal A
The sub-frame signal set by S (f) is the sub-frame signal Fj, and the paging signal in the sub-frame signal Fj of the radio paging receiver 2 belonging to the group Gi can be received. Next, in the subframe signal Fj set as the subframe signal, as shown in FIG. 7C, an address signal Aki is transmitted, and a group designation signal indicating that the calling signal belongs to another group Gi. After transmitting RG (g), g = i, the divided message signal Mki, 2 or Mki, n is transmitted. Here, the address signal Aki of the group Gi specified by the group specifying signal RG (g) is the group G1, G2.
2,..., Gn, there is a group Gj belonging to the subframe signal Fj, which is a subframe signal, having an address signal Aki. For this reason, the group designation signal RG (g) follows the address signal Aki in the sub-frame signal Fj.
Otherwise, an erroneous call will occur.

In the receiving procedure, as shown in FIG. 8, during the receiving time of the sub-frame signal Fi as the home sub-frame signal (S50), the receiving state is set (S51), and the detection of the address signal Aki is started (S52). If the address signal Aki cannot be detected and there is no stored message signal Mki, 1 (S53), the receiving operation is terminated (S54). Also, the stored message signal Mk
When i, 1 and Mki, 2 or Mki, n are present, a sound is made and the stored message Mki
1 and Mki2 or Mki, n are displayed (S5
5).

When the address signal Aki is detected, the sub-frame designating signal AS (f), f = j is detected (S56). Slave subframe designating signal AS (f)
If can not be detected, along with the normal operation sound
If the message signal Mki has been received, it is displayed (S57). When the detection is successful, the sub-frame signal Fj, which is the set sub-frame signal, is recognized, and the message signal Mk received continuously is received.
i, 1 are stored (S58), and the reception of the sub-frame signal Fi, which is the home sub-frame signal, ends. Next, it waits until the timing of the set sub-frame signal Fj, which is a subordinate sub-frame signal, enters the receiving state at the time of the sub-frame signal Fj (S60), and detects the address signal Aki and the group designation signal RG (g). Perform (S61, S62). Here, the group designation signal RG (i) is detected. As described above, the intermittent reception operation of performing the reception operation only for the subframe signal Fi that is the home subframe signal and the subframe signal Fj set as the subframe signal is performed.

When the address signal Aki and the group designation signal RG (i) are detected, it recognizes that the call signal is for the radio receiver 2 and receives and stores the subsequent message signal Mki, 2. (S63). At this time, if a plurality of sub-frame signals are designated, detection of address signal Aki and message signal Mki,
The operation shifts to an operation of repeating the storage operation of n. On the other hand, when the address signal Aki cannot be detected or when the group designation signal RG (i) cannot be detected, the reception of the subframe signal Fj as the subframe signal is terminated (S
64).

Next, a fifth embodiment of the present invention will be described with reference to FIG. FIG. 9 is a flowchart showing a receiving procedure according to the fifth embodiment of the present invention. In the fifth embodiment of the present invention, an address signal Ak, which is a call code assigned to the radio paging receiver 2, is provided.
A case where i is repeatedly used among the groups G1, G2,..., Gn will be described. The home subframe signal is a subframe signal Fi, and the address signal Ak is
The message signal Mki is sent to the paging receiver 2 having i.
Is transmitted. This paging receiver 2 belongs to a group Gi. The call signal sequence transmitted from the base station 1 is the same as in the fourth embodiment of the present invention.

The paging receiver 2 enters the receiving state (S71) during the reception time of the sub-frame signal Fi which is the home sub-frame signal (S71), and the address signal A
The detection of ki is started (S72). Address signal Aki
Cannot be detected, and the stored message signal Mk
If there is no i, 1 and Mki, 2 or Mki, n (S73), the receiving operation ends (S74). Also,
The stored message signals Mki, 1 and Mki,
2 or Mki, n, a sound is made and the stored messages Mki, 1 and Mki, n are stored.
2 or Mki, n is displayed (S75).

When the address signal Aki is detected, the sub-frame designation signal AS (f), f = j is detected (S76). This slave subframe designating signal AS
When (f) can be detected, the same operation as that described in the fourth embodiment of the present invention is performed, but when it cannot be detected, whether the sub-frame designation signal AS (f) has been detected so far. It is checked whether or not it is (S77). When the sub-frame designating signal AS (f) has not been detected so far, the message signal M is output together with the sound which is a normal operation.
When ki, 1 and Mki, 2 or Mki, n are received, this is displayed (S78). However, when the sub-frame specifying signal AS (f) is detected, the sub-frame signal F which is the sub-frame signal specified by the detected sub-frame specifying signal AS (f) has already been detected.
At the time j (S79), the receiving state is set (S8).
0), detection of the address signal Aki, and storage of the group designation signal RG (i) and the message signal Mki, 2 as in the fourth embodiment of the present invention. At this time, if a plurality of sub-frame signals are specified, the operation shifts to an operation of repeating detection of the address signal Aki and storage of the message signal Mki, n.

Next, a sixth embodiment of the present invention will be described with reference to FIGS. FIG. 10 is a diagram showing a format of a call signal sequence used in the sixth embodiment of the present invention. FIG. 11 is a flowchart showing a receiving procedure of the paging receiver 2 in the sixth embodiment of the present invention. In the sixth embodiment of the present invention, the address signal Aki, which is a call code assigned to the radio call receiver 2, is transmitted to groups G1, G2,.
A case in which it is used repeatedly between will be described. Also,
The home subframe signal is a subframe signal Fi,
The message signal Mki is transmitted to the paging receiver 2 having the address signal Aki. This paging receiver 2 belongs to a group Gi.

The message signal Mki is transmitted as a subframe signal Fi as a home subframe signal and a subframe signal Fj as a subordinate subframe signal, as in the fourth embodiment of the present invention. At the end, it is transmitted following the message signal Mki, 2.

In the receiving procedure, as shown in FIG. 11, during the receiving time of the sub-frame signal Fi as the home sub-frame signal (S81), the receiving state is set (S82), and the detection of the address signal Aki is started (S83). If the address signal Aki cannot be detected, the receiving operation is terminated (S84). If the address signal Aki is detected, the sub-frame designation signal AS (f), f = j is detected (S85). This slave subframe designating signal AS
When (f) cannot be detected, the same operation as in the fifth embodiment of the present invention is performed, but when detected, the subframe signal Fj, which is the set subframe signal, is recognized, and the subframe signal Fj is continuously received. The message signal Mki, 2 is stored (S86), and the end signal TM is detected (S8).
7). When the end signal TM is detected, it is recognized that the reception of the message signals Mki, 1 and Mki, 2 or Mki, n in the call signal has been completed, and this is displayed (S88).

If the end signal TM cannot be detected, the subframe signal Fj which is a subframe signal
Is terminated. Next, it waits until the timing of the sub-frame signal Fj set as the sub-frame signal (S89), enters the receiving state at the time of the sub-frame signal Fj (S90), and receives the address signal Aki (S9).
The operation shifts to the operation of detecting 1) and the group designation signal RG (i) (S92). When address signal Aki and group designation signal RG (i) are detected, message signal Mki, 2 following address signal Aki is stored. Further, if the end signal TM is not detected,
Address signal Aki and group designation signal RG (i)
Is repeated, and thereafter, the message signal Mk
The reception of i and n is repeated. As described above, the intermittent reception operation in which the reception operation is performed only with the subframe signal Fi that is the home subframe signal and the subframe signal Fj set as the subframe signal is performed.

In subframe signals Fi and Fj, address signal Aki and group designation signal RG
(G), g = i is detected, and the message signal Mki,
When 1 and Mki, 2 or Mki, n are stored, the end signal TM is detected together. When the end signal TM cannot be detected, the address signal Aki and the group designation signal RG (g) are detected, and the message signal Mki is detected. ,
The operation shifts to the operation of repeating the storage of 1 and Mki, 2 or Mki, n, but if it is detected, it is recognized that the reception of the calling signal has been completed, and the stored message signal M
Ki, 1 and Mki, 2 or Mki, n are displayed and sound is made. When the end signal TM is received, the paging receiver 2 resets the sub-frame signal AS (f).

Next, a seventh embodiment of the present invention will be described with reference to FIGS. FIG. 12 is a diagram showing a format of a call signal sequence used in the seventh embodiment of the present invention. FIG. 13 is a flowchart showing a receiving procedure of the radio pager 2 in the seventh embodiment of the present invention. In the seventh embodiment of the present invention, the address signal Aki, which is a call code assigned to the radio paging receiver 2, is unique to the radio paging receiver 2, and the same address is used for the groups G1, G2,. A case where the signal Aki is not used will be described. Also,
The home subframe signal is a subframe signal Fi,
The message signal Mki is transmitted to the paging receiver 2 having the address signal Aki. This paging receiver 2 belongs to a group Gi.

When it is determined that the message signal Mki cannot be transmitted by the call signal Sk in the subframe signal Fi which is the home subframe signal, the message signal Mki
To the message signals Mki, 1, Mki, 2, Mki,
3. Mki4 is divided into four and transmitted. Therefore, as shown in FIG. 12B, a sub-frame signal Fj for setting a sub-frame signal Fj as a sub-frame signal for transmitting a paging signal to the radio paging receiver 2 following the normal address signal Aki. After transmitting the subframe designating signal AS (f), f = j, continuous number information indicating the number of frame signals that continuously use the subframe signal Fi, which is a home subframe signal, and the divided message signal Mki,
Send 1 The sub-frame signal set by AS (f) is the sub-frame signal Fj, and the group Gi
, A paging signal can be received in a subframe signal Fj which is a subframe signal of the radio paging receiver 2 belonging to. Here, the subframe signal Fj to be set as the subframe signal is an arbitrary plurality of subframe signals F1,
, Fn can be set, and subframe signals F1, F2, ..., Fn with low traffic can be set. The number of consecutive frames in the subframe signal Fi that is the home subframe signal is “1”.
And Next, in the sub-frame signal Fj set as the sub-frame signal, as shown in FIG. 12C, the address signal Aki is transmitted, and the number of frames in which the sub-frame signal Fj is continuously used is shown. The continuation number information and the divided message signal Mki, 2 are transmitted. Here, since the address signal Aki differs for each group Gi or Gj, none of the groups Gj belonging to the sub-frame signal Fj has the address signal Aki.
The transmission of the address signal Aki in the sub-frame signal Fj does not cause an erroneous call. The number of consecutive frames in the subframe signal Fj is “1”. Further, the subframe signal Fi which is the next home subframe signal transmits the address signal Aki, the subordinate subframe designation signals AS (f), f = i, and the divided message signal Mki, 3, and the subframe signal Fj transmits the address signal Aki. And the divided message signal Mki, 4.

FIG. 13 shows the receiving procedure. At the reception time of the subframe signal Fi that is the home subframe signal (S101), a continuous subframe signal is already detected,
If it is the time of the continuous sub-frame signal Fi indicated by the detected continuous sub-frame signal, the operation shifts to the detection operation of the home sub-frame signal reception time without performing the reception operation (S102). Therefore, it is possible to reduce power consumption during the reception time of the subframe signal Fi.
When it is not the time of the continuous sub-frame signal Fi, the reception state is set (S103), and the detection of the address signal Aki is started (S104). If the address signal Aki cannot be detected, that is, if it is a paging signal for another paging receiver 2, the number of consecutive sub-frame signals is detected and stored (S105), and the stored message signal is stored. If there is no Mki, 1 and Mki, 2 (S106), the receiving operation is terminated (S10).
7). When the address signal Aki is detected, the sub-frame designation signal AS (f) is subsequently detected (S108). Thereafter, the same operation as in the first embodiment of the present invention is performed.

Returning to FIG. 12, FIG. 12 (d), (e),
(F) shows the operation status of the radio pager 2. FIG.
(D) is an operation status of the radio pager 2 having the address signal Aki in the subframe signal Fi that is a home subframe signal. And the subframe signal F set as the subframe signal
The reception operation is performed between the time t0 + (j−1) α to the time t0 + jα, the time T + t0 + (i−1) α to the time T + t0 + iα, and the time T + t0 + (j−1) α to the time T + t0 + jα. A normal reception process of performing a reception operation only with the subframe signal Fi, which is a signal, is performed. FIG. 12E shows the operation state of the radio pager 2 having a sub-frame signal Fi other than the address signal Aki in the home sub-frame signal. The receiving operation is executed, and the time T + t0 + (i−1) α, which is the next receiving timing, is changed to T +
During t0 + iα, the receiving operation can be suspended, and the power consumption of the radio paging receiver 2 can be reduced. Further, FIG. 12 (f) shows the operation status of the radio paging receiver using the subframe signal Fj as the subframe signal as the home subframe signal, and the time t0 + (j−
1) The receiving operation is executed during the period from α to t0 + jα.
The reception operation can be stopped during the period from + t0 + (j-1) α to T + t0 + jα, and the power consumption of the radio paging receiver 2 can be reduced. The intermittent reception control is performed by the intermittent reception control unit 23 shown in FIG.

In the seventh embodiment of the present invention, the format of the paging signal sequence for transmitting the continuous subframe signal and the operation of the radio paging receiver 2 are described in the case of the first embodiment of the present invention. The same applies to the sixth to sixth embodiments. In addition, the number of continuous subframes can be included in the subframe designation signal and the group designation signal and transmitted.

In the first to sixth embodiments of the present invention,
The message signal is divided into two, and in the seventh embodiment of the present invention, the message signal is divided into four parts and transmitted by the home subframe signal and one sub-subframe signal. Obviously, the signal can be divided and transmitted using a plurality of p subframe signals. Also, at this time, a plurality of subframe signals can be specified in the slave subframe specifying signal. The information that can be transmitted to a certain paging receiver 2 can be transmitted at a maximum T / T = 1 efficiency including the address signal, the subframe signal, and the group designation signal.

[0062]

As described above, according to the present invention,
A radio paging system can be realized without causing a decrease in transmission efficiency and an increase in transmission delay due to an increase in the amount of information transmitted, and without increasing power consumption of a radio paging receiver.

[Brief description of the drawings]

FIG. 1 is a main part configuration diagram of a base station and a radio paging receiver used in a first embodiment of the present invention.

FIG. 2 is a diagram showing a format of a call signal sequence according to the first embodiment of the present invention.

FIG. 3 is a flowchart showing a receiving procedure of the radio paging receiver according to the first embodiment of the present invention.

FIG. 4 is a flowchart showing a receiving procedure of the radio paging receiver according to the second embodiment of the present invention.

FIG. 5 is a diagram showing a format of a call signal sequence used in a third embodiment of the present invention.

FIG. 6 is a flowchart showing a receiving procedure of the radio paging receiver according to the third embodiment of the present invention.

FIG. 7 is a diagram showing a format of a call signal sequence used in a fourth embodiment of the present invention.

FIG. 8 is a flowchart showing a receiving procedure of the radio paging receiver according to the fourth embodiment of the present invention.

FIG. 9 is a flowchart showing a receiving procedure according to a fifth embodiment of the present invention.

FIG. 10 is a diagram showing a format of a call signal sequence used in a sixth embodiment of the present invention.

FIG. 11 is a flowchart showing a receiving procedure of the radio paging receiver according to the sixth embodiment of the present invention.

FIG. 12 is a diagram showing a format of a call signal sequence used in a seventh embodiment of the present invention.

FIG. 13 is a flowchart showing a receiving procedure of the radio paging receiver according to the seventh embodiment of the present invention.

FIG. 14 is an overall configuration diagram of a wireless paging system.

FIG. 15 is a diagram showing a format of a call signal sequence used in a conventional example.

[Explanation of symbols]

Reference Signs List 1 base station 2 radio paging receiver 4 telephone network 5 telephone terminal device 10 message division unit 12 message insertion unit 14 insertion display control unit 20 message storage unit 22 message synthesis unit 23 intermittent reception control unit F1 to Fn subframe signals S1 to Sk calling signal G1 to Gn group A1i to Aki address signal M1i to Mki, Mki, 1, Mki, 2, Mki, n
Message signal

Claims (7)

(57) [Claims] 1. A base station for transmitting a frame signal having a repetition period T, and a radio paging receiver for receiving the frame signal, detecting that its own address signal is contained therein, and exciting a paging output. And the frame signal includes a plurality of sub-frame signals F1 to Fn.
And the receiver is assigned one of the numbers 1 to n as a group number i, and the group number i
The address signal for the receiver to which is assigned is transmitted in a sub-frame signal Fi (hereinafter, this sub-frame signal is referred to as a “home sub-frame signal”). If the message signal following the destination address signal exceeds the length that can be accommodated in the home subframe signal, the message signal is divided into a plurality of parts and the divided message signal is transmitted to another part transmitted after the home subframe signal. The subframe signal of the group number is accommodated in the subframe signal and transmitted.
Of the subframe signal in which the
Means for transmitting a number in a home sub-frame signal of a destination receiver , wherein the radio paging receiver includes a plurality of sub-frames when a received message signal is divided and accommodated over a plurality of sub-frame signals. A radio paging system comprising means for combining and restoring a message signal contained in a frame signal. Wherein said receiver includes means for intermittently receiving a home sub-frame signals corresponding to the group number assigned to the receiver in synchronization with the period T, divided
Number of the subframe signal in which the transmitted message signal is transmitted
Is received in the home subframe signal,
Intermittently receives the subframe signal with the number
2. The radio paging system according to claim 1, further comprising means for receiving a message signal . Wherein the base station is divided and transmitted later
Radio paging system according to claim 1, wherein the number of message signals comprises means for transmitting in a sub-frame signal. 4. The base station signals a signal indicating the end of transmission of the divided message signal and / or announces the end.
Means for transmitting a signal, wherein the receiver foretells a signal indicating the end or the end.
Signal or the own device address signal disappears.
Reception of subframe signal other than home subframe signal
Radio paging system according to claim 1, wherein executing the exit procedure of the stopped call the. 5. The method according to claim 1, wherein the address signal assigned to the receiver is duplicated.
When used repeatedly for groups of numbers,
The base station may communicate with other groups where the split message signal is transmitted.
Home support the subframe within the loop subframe.
Reception belonging to a group other than the group that
Group designation signal indicating that the signal is intended for the machine
Means for transmitting the group designation.
When the signal indicates another group,
Radio paging system according to claim 1, further comprising a means for inhibiting response against. 6. The receiver according to claim 1 , wherein the group designation signal is
When displaying another group, the home subframe of the receiver
Means to stop receiving the subframe even if the
The wireless paging system according to claim 5, comprising: 7. The method according to claim 1, wherein
Radio paging receiver used for line paging .