JPS60177751A - Priority exchanging system - Google Patents

Abstract

PURPOSE:To change a priority degree given to communication, from a called side terminal equipment, too, by giving the first priority degree and the second priority degree to a calling side terminal equipment and a called side terminal equipment, respectively, comparing the first priority degree and the second priority degree, and selecting one of them as a priority degree of the communication between the calling side and the called side terminal equipments. CONSTITUTION:A priority degree selecting part 52 compares the first priority degree extracted from a call control memory 32 and the second priority degree which is received, for instance, with a priority degree designated by a call side terminal equipment and a called side terminal equipment, respectively, and the higher priority degree is adopted. Or the comparison is executed by a prescribed logic for adopting unconditionally the priority degree designated by the called side terminal equipment, etc., and the priority degree to be adopted is selected to a call set between the calling side terminal equipment 21 and the called side terminal equipment 23. The priority degree selecting part 52 selects the second priority degree in case the called side terminal equipment 22 is contained a desire of the priority degree in an incoming call allowable signal c3, and selects the first priority degree in case the called side terminal equipment 22 is not contained the desire of the priority degree in the incoming call allowable signal c3.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical field of the invention The present invention is an improvement of a priority exchange system, particularly in a store-and-forward network that assigns priority to communication between accommodated terminal devices and determines exchange processing order. Regarding.

(2) Background of the technology In general, in a store-and-forward network, communication information transferred between accommodating terminal devices is once stored in the store-and-forward devices that make up the store-and-forward network, and then transferred to the downstream store-and-forward device or the called side. delivered to the terminal device. The storage/exchange device not only processes the accumulated communication information in the order of arrival, but also gives priority to the communication set between the accommodated terminal devices, giving priority to information related to high-priority communication and processing the exchange. Accordingly, an exchange system has been proposed in which, for example, urgent communications requiring conversational online processing are processed preferentially.

(3) Prior Art and Problems FIG. 1 is a diagram showing an example of a conventional priority exchange system in this type of store-and-forward network. In FIG. 1, the store-and-forward network provides two types of priorities, high priority and low ambiguity, to communications between accommodated terminal devices. In order for the terminal device 21 currently accommodated in the storage/exchange 11 to communicate with the terminal device 22 accommodated in the storage/exchange 12, a call request including a high-priority designation signal p1 requesting high-priority exchange processing The signal a1 is transmitted to the affiliated storage and exchange 11. Call request signal a
The storage/switching device 11 that received the call request signal 1 is provided with a call control memory 31 that stores control information necessary for setting up the call, and stores the high priority designation signal pi included in the call request signal al in the call control memory 31. After that, a call request acceptance signal all is created by adding control information necessary for switching processing to the call request signal a1, and is transmitted to the storage exchange 12. Call request acceptance signal 8
The storage/switching device 12 which received the signal 81' is provided with a call control memory 32 for storing required information in the same manner as the storage/switching device 11, and stores the high priority designation signal p1 included in the call request acceptance signal 81' in the call control memory 32. After storing the received call signal b1 in the terminal device 22, an incoming call signal b1 is generated and transmitted to the terminal device 22. The terminal device 22 sends back an incoming call enable signal c1 to the storage/exchange 12, the storage/exchange 12 returns an incoming call re-acceptance signal 01' to the storage/exchange 11, and furthermore, the storage/exchange 11 sends a communication enable signal d1 to the terminal device 21. By returning this, a high-priority call is set up between the calling terminal device 21 and the called terminal device 22. Thereafter, the communication information e1 transmitted by the calling terminal device 21 is transmitted to the storage and switching device 1.
1, is coupled to a high priority transmission queue 41 for the storage/exchange 12, and is transmitted to the storage/exchange 12 with priority. Similarly, the communication information e1 stored in the storage/exchange 12 is also coupled to the high-priority transmission queue 43 for the called terminal device 22, and is preferentially transmitted to the called terminal device 22. If the terminal device 22 communicates with the above-mentioned terminal device 21 in parallel, the terminal device 23 accommodated in the storage/exchange device 11
If the calling terminal device 23 is carrying out communication requesting low priority, the storage exchangers 11 and 12
are provided with call control memories 33 and 34 that store the low priority designation signal p2 transmitted from the calling side terminal bag [23 in the calling request signal a2, so that the calling side terminal device 23 can communicate. Upon receiving the signal d2, a low priority call is set up with the called terminal device 22. From then on, the calling side terminal device 23
The communication information e2 transmitted by the storage and forwarding mechanisms 1 and 12
Each time the communication information e1 is accumulated, it is coupled to the low-priority transmission queues 42 and 44, and the communication information e1 transmitted by the terminal device 21 is transmitted with low priority.

As is clear from the above explanation, in conventional priority switching systems, the priority of communication processed by the store-and-forward network is given to the desired communication power of the calling terminal, and the priority of the called terminal is There was no hope at all. Therefore, in FIG. 1, the terminal device 22, which collects and manages data all at once, communicates with the terminal device 21.
Even if it is determined that communication with 3 is urgent, the priority order desired by the calling side terminal devices 21 and 23 (terminal device 21 desires high priority, and terminal device 23 desires low priority).
It was impossible to change.

(4) Purpose of the Invention The purpose of the present invention is to eliminate the drawbacks of the conventional priority switching system as described above, and to provide a
(5) Structure of the invention The purpose of this invention is to realize a means for changing the priority in a store-and-forward network that assigns priorities to communications between accommodating terminal devices and determines exchange processing order. Compare the means for assigning a first priority to the side terminal device, the means for assigning a priority of 13J2 to the layer call side terminal device, and the first priority and the second priority, and determine which one This is achieved by providing means for selecting one as the priority for communication between the calling and called terminal devices.

(6) Examples of the invention An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a diagram illustrating a priority switching system according to an embodiment of the present invention in a store-and-forward network. Note that the same reference numerals indicate the same objects throughout the figures. In FIG. 2, the terminal device 21
transmits a call request signal a3 including a high priority designation signal p1 to the affiliated storage/exchange 13 in order to perform communication requesting high priority to the terminal device 22. The #selected exchange 13 is provided with a call control memory 31 for the received call request signal a3, and stores the high priority designation signal p1 included in the call request signal a3 as a first priority in the call control memory 31. After that,
A call request acceptance signal a/ is created and transmitted to the storage/exchange 14. The storage/switching device 14 is provided with a call control memory 32 for the received call request acceptance signal a3/, and assigns the high priority designation signal p1 included in the call request acceptance signal a3' as the first priority to the call control memory 32. After storing it in the control memory '32, an incoming call signal b3 is created and transmitted to the terminal device 22.

The terminal device 22 receives the received call signal b3 and learns that the terminal device 2 is requesting communication, and includes a low priority designation signal p2 if the terminal device 22 requests a low priority for the communication. An incoming call ready signal c3 is sent back to the affiliated storage/exchange 14. The storage/switching device 14 sets the low priority designation signal p2 included in the received call ready signal c3 as the second priority and selects the priority selection unit 5.
2. The priority selection unit 52 is connected to the call control memory 32.
Compare the first priority extracted from the first priority and the received second priority, for example, the priorities specified by the calling terminal device and the called terminal device, respectively, and adopt the higher priority, Alternatively, the calling terminal device 2
The priority to be adopted for the call set between the terminal device 23 and the called terminal device 23 is selected. In FIG. 2, the priority selection unit 52 selects the second priority when the called terminal device 22 includes the desired priority in the call available signal c3, and selects the second priority, If #22 does not include the desired priority in the call availability signal c3, the first priority is selected. Therefore, the priority selection unit 52 selects the received low priority designation p2 as the second priority, and selects the high priority designation signal p1 as the first priority stored in the call control memory 32 as the second priority.
After updating to the low priority designation signal p2 as the priority of
The incoming call re-acceptance signal c3/ sent back to the storage/switching device 13 includes a low priority designation signal p2 as the second priority.

The storage exchange 13 transmits the low priority designation signal p2 included in the received call re-acceptance signal c3/ to the priority selection unit 51 as the second priority. The priority selection unit 51 uses the same logic as the priority selection unit 52 of the storage/switching device 14 to convert the high priority designation signal p1 as the first priority stored in the call control memory 31 into the second priority selection signal p1. After updating the priority to the low priority designation signal p2 as the priority of
Include 2. As described above, a low priority call is set up between the calling terminal device 21 and the called terminal device 22. The calling terminal device 21 learns the priority adopted for the set call based on the low priority designation signal p2 included in the received communication enable signal d3. Calling side terminal device 21 and called side terminal device 22
When a call is set up between the calling terminal 23 and the called terminal 22 in parallel with the call set up between the calling terminal When the device 23 requests low priority, the call control memory 3 of the storage/switching device 13
3 and the call control memory 34 of the storage/switching device 14 store a low priority instruction signal p2 as the first priority, but if the receiving terminal device 22 requests a high priority, the second priority The high priority designation signal p1 is updated as the high priority designation signal p1, and the high priority is adopted. Thereafter, communication information e4 sent from the calling terminal device 23 is once stored in the storage exchangers 13 and 14, and is coupled to the high-priority transmission queues 41 and 43, and then transferred to the low-priority transmission queues 42 and 44. O is preferentially transmitted to the called terminal device 22 according to the request of the called terminal device 22 from the communication information e3 transmitted from the calling terminal device 21 coupled to the O. As is clear from the above explanation, According to this embodiment, a priority level desired by the called terminal device 22 is given to a call set between the calling terminal device 21 or 23 and the called terminal device 22. If the called terminal device 22 does not particularly desire it, the priority desired by the calling terminal device 21 or 23 is given.

It should be noted that FIG. 2 is only one embodiment of the present invention, and for example, the priority selection units 51 and 52 are not limited to selecting the second priority, but also selecting the first and second priority. Many other modifications may be considered, such as selecting a higher priority or selecting a lower priority among the priorities, but the effects of the present invention do not change in either case. Furthermore, the first and second priorities are not limited to those desired by the calling terminal device or the called terminal device each time a call is set up. Although it is also possible to consider adding , the effect of the present invention does not change even in such a case. FIG. 3 is a diagram illustrating a priority exchange system according to this embodiment. In FIG. 3, the storage exchanger 15
and 16 includes a priority table 61 or 62 that stores a priority designation signal pif or pl that designates a predetermined priority for each accommodated terminal device. The terminal device 21 or 23 transmits a call request signal a5 or C6.
does not read any priority designation signals. The storage/switching device 15 refers to the priority table 61 and stores the priority designation signal p2 or pl corresponding to the calling terminal device 21 or 23 as the first priority in the call control memory. The called terminal device 22 also sends back call clear signals C5 and C6.
does not include any priority designation signals. The storage/switching device 16 refers to the priority table 62 and transmits the low priority designation signal p2 corresponding to the called terminal device 22 to the priority selection section 54 as the second priority. A low or high priority transformation constant signal p as a first priority is stored in the control memory 32 or 34 in a process similar to that shown in FIG.
2 or pl is extracted and compared with the received low priority designation signal p2 as the second priority, and the priority designation signal p2 or pl that designates a higher priority is selected. If the second priority is low priority, the first priority is selected,
It is assigned to a call set between the calling terminal device 21 or 23 and the called terminal device 22. Further, the priority levels assigned by the storage and forwarding network are not limited to two types, and the effects of the present invention do not change even in the case of other arbitrary types.

Further, the configurations of the store-and-forward network and the store-and-forward device are not limited to those shown in the drawings, and many other modifications may be considered, but the effects of the present invention will not change in any case.

(7) Effects of the Invention According to the present invention, the priority given to the communication processed by the store-and-forward network is selected taking into account not only the calling terminal device but also the wishes of the called terminal device. This makes it possible to implement priority processing that is suitable for the accommodated terminal device and the type of communication.

In addition, when a called terminal device collects and manages data from each calling terminal device, depending on the processing situation, data from a lower priority calling terminal device is transferred to a higher priority calling terminal device. It is also possible to perform exchange processing such as prioritizing processing, and the exchange service can be improved.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an example of a conventional priority switching system in a store-and-forward network, FIG. 2 is a diagram showing a priority switching system according to an embodiment of the present invention, and FIG. 3 is a diagram showing a priority switching system according to another embodiment of the present invention. It is a diagram showing an exchange method. In the figure, 11 to 16 are storage exchangers, 21 to 23
31 to 34 are terminal devices; 31 to 34 are call control memo 1; 41 and 43 are high priority transmission queues; 42 and 44 are low priority transmission queues; and 51 to 54 are priority selection units. 61 and 62 are priority tables, al to C6 are call request signals, and C1' to C6' are call request acceptance signals. bl to C6 are incoming call signals, el to C6 are incoming call ready signals,
C1' to ca/ are incoming call re-acceptance signals, di to d6 are communication enable signals, 6x to C6 are communication information sP'' are high priority designation signals, and pl are low priority designation signals. [?(I warehouse 2 illustration 5 illustration

Claims (1)

[Claims] In a store-and-forward network that prioritizes communications between accommodating terminal devices and determines exchange processing order, the calling terminal device is
and a means for assigning a second priority to the called terminal device. 1. A priority exchange system, comprising: means for selecting a priority of communication between a terminal device at the called side and a terminal device at the called side.