JPS63109620A - Radio selective call system - Google Patents

Abstract

PURPOSE:To select and set an ID number to be provided to Pager to an optional number by receiving an ID number relating the transmission in the reception timing based on the ID number related of a retrieved SC so as to confirm the discidence/coincidence. CONSTITUTION:In adding the SC (synchronization code word) controlling the battery saving to the head of a prescribed radio call number (ID number) pf a prescribed number, the radio base station is provided with the function revising the content of the SC. The page is provided with the storage means 5 storing the ID number and the SC related to each SC of its own plural ID Numbers, a retrieval means 4 retrieving whether or not the storage means 5 stores the SC being the same content as the received SC, a reception means 2 receiving the ID number and comparator means 3, 4 discriminating the coincidence and dissidence between the received ID number and its own ID number. Thus, the radio selective call system to be provided with an optional number is obtained as the plural ID number provided to the Pager.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is directed to a plurality of Pagers (pager-two subscriber portable receivers) that selectively receive calls from a wireless base station.
OCS A G (Po5t Office Code
5 Standards on Advising
It pertains to a wireless selective calling system that performs battery saving operations in a manner stipulated in the Group) code specifications, and in particular for P-calling systems having multiple wireless calling numbers (I DNL).
Related to ager control technology.

(Conventional technology).

The wireless selective calling system to which the present invention is directed consists of a wireless base station and a plurality of Pagers that selectively receive calls from this wireless base station.
This is a wireless selective calling system that performs battery saving operations in accordance with the code specifications.

In this type of radio selective calling system, the radio base station
SC (5ynch) that controls battery saving operation
ronization code) is added to the beginning of a predetermined number (usually 8) of radio calling numbers (IDk) that are sequentially transmitted.

In addition, multiple Pagers each have multiple groups (
At the timing assigned to any one of the eight IDNLs (generally 8 groups) (hereinafter referred to as "group timing"), that is, the ID No. of any one of the eight IDNLs that the radio base station sequentially transmits. The battery saving operation is canceled at the transmission timing of , and the corresponding ID1k is received at the group timing, and the received ID
It is designed to check whether the NtL and its own IDNtL match or do not match.

Here, the group timing for each pager is
It is determined by the contents of the bit pattern of the lower three bits when the own IDNtt is expressed as a binary number. Moreover, the same SC is used as a system.

(Problems to be Solved by the Invention) By the way, P in this type of wireless selective calling system
When ager has multiple IDNLs, all IDNo. The matching timing for the two groups is set to be performed at the same group timing.

However, Pager's own ID No. Since the group timing is set using the bit pattern of the lower 3 bits of the digital value converted to binary,
In order to make the matching timings of multiple IDNas the same, the bit patterns of the lower 3 bits of each IDNw (digital value) must be made equal. Then, since the number of group timings is "8", each IDN & It is necessary to set the ID number to a multiple of 8. The problem is that it cannot be selected arbitrarily.

In particular, in this type of wireless selective calling system, a large number of P
It is now possible to perform services such as calling all pagers all at once or sending common information (message, etc.) to many pagers at the same time, but the ID number used for this service. is all Pages that receive that service.
r must be the same, and their group timings must also be the same, so each Pager
If the system has multiple IDNLs, the number arrangement for the entire system becomes complicated.

For example, three Pa1ers each have two ID numbers.
IDNL1 is unique, IDNo. If 2 is for receiving a common service, its ID No.
．． For example, the settings are as follows.

In other words, the group timings of IDNa, 1 and IDN Zhang 2 are equal, with the bit pattern of the lower 3 bits being 000''.
ID number 1, ID, N1L2 are all multiples of 8. The IDNQ of each t'ager is determined in this way, and the number arrangement for the entire system becomes considerably complicated.

The present invention has been made in view of such conventional problems, and its purpose is to solve the problem of multiple ID numbers owned by Pager.
An object of the present invention is to provide a wireless selective calling system that can assign an arbitrary number as a number.

(Means for Solving the Problems) In order to achieve the above object, the wireless selective calling system of the present invention has the following configuration.

That is, in the wireless selective calling system of the present invention, a plurality of Pag-ers who selectively receive calls from a wireless base station
C9AG (Post Osfice Code
5 standard-ization advice
ng Group) code specification, the wireless selective paging system performs a battery saving operation in a manner defined in the NG Group) code specification;
oCodeword) to the beginning of a predetermined number of wireless calling numbers (IDNo.) that are transmitted sequentially; the Pager has a function that can change the contents of the SC; storage means for storing the IDN (L and SC) in association with each of the SCs; a search means for searching whether or not the storage means stores an SC having the same content as the received SC; A predetermined number of IDNs following the SC (in L, a self ID stored in association with the SC searched by the search means)
No. IDNo. at the reception timing based on receiving means for receiving the received IDNo. and a comparison means for determining whether or not the self-IDFJ [L] matches;
This is a wireless selective calling system characterized by comprising:

(Function) Next, the function of the wireless selective calling system of the present invention configured as described above will be explained.

The radio base station sequentially transmits a predetermined number of ID numbers. , immediately,
A predetermined number of ID numbers arranged in chronological order. SC at the beginning of
is sent repeatedly, but at that time, the SC
Change the contents as appropriate.

In each Pager, the storage means stores the ID No. and SC in advance by associating each of its own plurality of IDtJα with each of the SCs, and first, the storage means stores an SC having the same content as the received SC. Perform a search to see if it is stored (operation of search means) 0 Next, a predetermined number of ID numbers following the received SC are searched. Among the self ID No. stored in association with the searched SC. IDN (operation of the receiving means to receive L) at the reception timing based on the received IDNα and the self ID
N0. A determination is made as to whether or not there is a match (operation of the comparison means).

For example, a wireless base station has eight IDs arranged in chronological order.
SC#1 and SC#2 as SCs to be added to the beginning of No.
Suppose you want to switch.

In addition, there are three Pagers, each with two IDNs (L
ID No. L is a unique value, and IDNα2 is used to receive a common service.

If the reception timing for each Pager is any one of the eight timings, the reception timing is determined by the content of the pit pattern of the lower three bits of its own ID No. (digital value). What is done is the same as before.

Then, in the present invention, each Pagcr's IDN (L is 5C
(SC#1, SC#2) and received S
I stored in association with SC (SC #1 or SC #2)
Since the IDNa related to the transmission is received at the reception timing based on the DNA and the match is confirmed, each Page
ID No. of r. l and ID No. 2 is "8" as before
It does not have to be a multiple of , and can be any number. Therefore, IDNα1 and IDNα1 stored in advance in the storage means
DNo. 2 is selected and set as an arbitrary number with no mutual relationship as shown below.

(Embodiments) Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1st
The figure is a configuration block diagram of a Pager according to an embodiment of the present invention.

This Pager includes an antenna 1, a receiving section 2, a decoder 3, a central processing unit (CPU) 4, a memory 5, a peripheral control section 6, a message display section 7, a display lamp 8, and a speaker 9. Basically, have the following.・The wireless base station (not shown) is connected to each Pag in the format shown in Figure 2.
It is broadcasting IDN (L) towards er.

In other words, in the wireless base station, eight time-series timings (
When transmitting IDNtL sequentially at the above-mentioned "group timing") "O" to r7J, an SC that controls the battery saving operation is added to the beginning of the IDNtL.
When that SC exists, it becomes SC #1 (Figure 2 (a))
, and at other times it becomes SC#2 (Fig. 2(b)).

Assume that Pager has two IDNQs, and the memory 5 stores two IDNos. as follows. (IDNo.l
and ID No. 2) and SCs (SC#1 and SC#2) are stored in advance in association with each other.

22, ID No. Since the lower 3 bits of the digital value of I are roolJ, the group timing is "1" and IDNo. 2 is "roll", so the group timing is "3".

First, the wireless base station transmits for a predetermined period in the format shown in FIG. 2(a), as shown in FIG.
) for a specified period of time.

Then, l'ager operates as shown in FIG. 3(b). That is, at the preamble signal reception timing and the SC reception timing, the receiver 2 is powered on to cancel the battery saving operation.

The power on/off control of the receiving section 2 is performed by a control system including the CPU 4, but since this is well known, it is not shown. The signal received at antenna 1, namely SC (SC
#1 or SC #2) reaches the decoder 3 via the receiving section 2, where it is converted into a digital signal and taken into the CPU 4. After the SC reception timing elapses, the receiver 2 is powered off again and the pager starts the battery saving operation again.

The CPU 4 selects the received SC (SC#1 or SC#2).
A search is performed to determine whether or not the memory 5 stores an SC with the same content as (either one of the above) (operation of the search means).
Since SC#1 was received, address #1 is searched and I
Since the reception timing based on D1kl, that is, the group timing is "1", as shown on the left side of FIG. I at group timing 1 among the eight chronologically succeeding IDNas
DNo. (operation of receiving means).

Then, the received ID- is converted into a digital signal by the decoder 3 and taken into the CPU 4, and the received ID
o. and own ID No. It is determined whether or not they match with I (operation of the comparing means). As a result, if they match, the peripheral control unit 6 is controlled to notify the owner of the Pag-er of the reception.

There are various ways to make this notification, such as lighting up the display lamp 8, sounding the speaker 9, and displaying a message on the message display section 7.

Furthermore, when SC#2 is received, address #2 is searched, the group timing based on IDNtL2 is set to "3", and the timing "3 is used to cancel the battery saving operation and receive IDNfL". become.

In this way, ID No. l and I DNQ, 2 and SC
Since the contents of the group timing numbers are different, even if the number of group timings is "8" as in the past, the number assignment is not restricted to "a multiple of 8" and can be arbitrarily selected and assigned.

The above operation is performed when there are multiple Pagers, and each Pager
is multiple ID No. For example, there are four Pagers, and each Pager has two ID1lkL, ID Nw 1 is a unique one, IDN (L2 is for a common service, and the wireless base station is transmitted in the same format as in Figure 3(a), each Pa
The contents of the ger's memory 5 can be set, for example, as shown in the following table, and its operation is as shown in FIG. Note that since the operation can be easily understood based on the above explanation, the explanation thereof will be omitted.

Here, in each 1'Ber, ID No. I (address #1) is a consecutive number, but it is an ID number.

2 (address #2) has a different SC, so it can be numbered independently of IDNLl, that is, independently.

This indicates that when performing a service such as calling a large number of Pagers all at once or transmitting common information (such as a message) to a large number of Pagers at the same time, the number arrangement becomes very simple.

In addition, in the above embodiment, the SC and the corresponding IDNa
However, the present invention is not limited to this, and for example, both may be stored at different memory addresses.In short, the two may be stored at different memory addresses. Bye.

(Effects of the Invention) As detailed above, according to the wireless selective calling system of the present invention, each Pa1r has an individual ID number.

and an SC in association with each other, search for an SC with the same content as the received SC, and create an I that is associated with the searched SC.
The ID No. related to transmission is determined at the reception timing based on the DNA.
, and check the match/mismatch.
It is related to the number of timings for canceling the battery saving operation specified as a system (I
DNo. This has the effect of allowing you to select and set it to any number.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the configuration of Pagcr according to an embodiment of the present invention, FIG. 2 is a diagram showing the transmission format of a wireless base station, and FIG.
The figure is a time chart of the receiving operation of one Pager, and FIG. 4 is the time chart of the receiving operation of four Pagers. 1... Antenna, 2... Receiving section,
3...Decoder, 4...CPU,
5...Memory, 6...Peripheral control unit,
7...Message display section, 8...Display lamp, 9...Speaker.

Claims (1)

[Claims] Multiple Pages that selectively receive calls from wireless base stations
r (pager) is POCSAG (Post Off
ceCode Standardization Ad
A wireless selective paging system that performs a battery saving operation in a manner stipulated in a synchronization group (vising group) code specification;
on Codeword) to the beginning of a predetermined number of wireless calling numbers (IDNo.) that are sequentially transmitted;
own multiple ID numbers. IDNo. is associated with each of the SCs. and a storage means for storing an SC with the same content as the received SC; a search means for searching whether or not the storage means stores an SC having the same content as the received SC; a predetermined number of ID numbers following the received SC. , the self-IDN stored in association with the SC searched by the search means.
o. IDNo. at the reception timing based on receiving means for receiving the received IDNo. and said self I
DNo. A wireless selective calling system characterized by comprising: a comparison means for determining whether or not the two match.