JP3364942B2 - Multi-address terminal accommodation method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION The present invention relates to a method for controlling a plurality of data terminals.
A packet accommodated in a packet switch via a packet multiplexer.
Multi-address terminal accommodating system in packet switching network
I do. [0002] 2. Description of the Related Art FIG.
It is a figure showing an example of a network. In FIG. 4, two sets of packet
Packet Switch (PS) 1 (Individual Packet Switch (PS)
1₁, 1_TwoEtc.) and a set of packets
It consists of a packet multiplexing device (PMX) 2 and has five sets of data.
A packet-switched network accommodating a data terminal (DTE) 3 is shown.
And a packet switch (PS) 1₁And 1_TwoIs relay
Line 4₁Connected via a packet switch (PS) 1
₁And the packet multiplexer (PMX) 2 are connected to the trunk line 4_TwoTo
Connected via [0003] Three sets of data terminals (DTE) 3₁To 3_Three
Is the subscriber line 5₁To 5_ThreeVia packet
A multiplexer (PMX) 2 is connected to a data terminal (DT)
E) 3_FourIs subscriber line 5_FourVia the packet switch (P
S) 1₁And a data terminal (DTE) 3_FiveIs
Subscriber line 5_FivePacket Switch (PS) 1 via_TwoTo
It is connected. [0004] The packet-switching network is designed to accommodate each data terminal.
End (DTE) 3 with terminal number TN, and
When the terminals (DTE) 3 communicate with each other,
The data terminal (DTE) 3 receives incoming data from the packet switching network.
Data terminal (DTE) 3 by specifying the terminal number TN.
Request for confirmation. [0005] In a conventional packet switching network, packet
Exchange (PS) 1₁Multiplexing device connected to
(PMX) 2 as one data terminal,
Therefore, one packet multiplexer (PMX) 2
The terminal number TN is assigned to the packet multiplexing device.
Data terminal (DTE) 3 accommodated in the PMX 2
₁To 3_ThreeTo each terminal number TN
Was impossible. Under such conditions, the packet multiplexing device
Three sets of data terminals (DTE) housed in (PMX) 2
3₁To 3_ThreeTo enable communication independently
First, the packet is given to the packet multiplexer (PMX) 2.
Each data terminal (DTE) 3 is assigned to the common terminal number TN
₁To 3_ThreeAdd a sub address to identify
If each data terminal (DTE) 3₁To 3_ThreeWhen receiving a call
Has a common terminal number TN and each data terminal (DTE) 3
₁To 3_ThreeRequest call setup by adding sub address of
The method is considered. However, a normal packet switching network accommodates
Digit of terminal number TN assigned to data terminal (DTE) 3
The number is predetermined, for example, the International Telegraph and Telephone Advisory Committee
In Recommendation X121 of (CCITT), international
The data network has a maximum of 14 digits. [0008] Therefore, the packet switching network is connected to each data terminal.
(DTE) 3 and packet multiplexer (PMX) 2
The terminal number TN to be assigned is determined by a predetermined maximum number of digits.
Then, the data terminal (DTE) 3₁To 3_ThreeGranted to
Adding a unique identification number would exceed the maximum number of digits.
It is not possible to request call setup by adding an identification number
Becomes Therefore, the data terminal (DTE) 3₁To 3
_ThreeTo be able to add an identification number to the terminal number TN
, The packet switching network is connected to each data terminal (DTE) 3
The number of digits of the terminal number TN to be assigned to the
Data terminal (DTE) 3₁To 3_ThreeIs packet exchange
By adding an identification number to the terminal number TN given from the switching network
Nothing except that the maximum number of digits mentioned above is not exceeded
No. However, if such a solution is adopted, the packet
Terminal number that switching network can assign to data terminal (DTE) 3
The total number of TNs will decrease, which is not always an effective solution
Not a solution. As a second solution, an incoming data terminal (D
Call user data for adding TE) 3 to the incoming packet CN
Data (CUD). That is, an example
For example, Packet Switch (PS) 1_TwoData end accommodated in
End (DTE) 3_FiveIs a data terminal (DTE) 3₁Between
When requesting call setup, the called terminal number of the called packet CN
Given to packet multiplexer (PMX) 2 as signal DN
Set the common terminal number TN, and
Call user data (CU) added to the call packet CN
D), the data terminal (DTE) 3₁With the identification number of
Of incoming packets CN
Call user data (CU) is stored in the weighting device (PMX) 2.
Data terminal (DTE) 3 added as D) ₁of
Data terminal (DTE) 3 by analyzing the identification number₁Against
It is also considered that a call is set up. However, call user data (CUD)
Has not been standardized, so packet multiplexing
Device (PMX) 2 is an arbitrary data terminal (DTE) 3
Can recognize call user data (CUD) transferred from
This is not always the case and it is not a sufficient solution. [0013] Further, the packet switching network stores each data to be accommodated.
Various services can be specified for each data terminal (DTE) 3
Therefore, the packet multiplexer (PMX) 2 is used as a unit.
Although it is possible to specify the type of service provided,
Each data terminal (DTE) 3₁To 3_ThreeIndependent service every time
Cannot be specified. So, for example,
Terminal (DTE) 3₁Uses a closed group service
If you use other data terminal (DTE) 3_TwoYou
And 3_ThreeAlso provide the same closed group services.
And the data terminal (DTE) 3_TwoAnd 3_ThreeBut it
Use or close your own closed group service
It becomes impossible not to use the area group service. [0014] It is clear from the above description.
As described above, in a conventional packet switching network,
A plurality of data terminals (D
TE) 3, the packet multiplexer (PM)
X) 2 is regarded as one data terminal (DTE) 3 and
Data terminal (DTE) 3 is connected to an independent data terminal (D
TE) Because it is not regarded as 3, terminal numbers TN to be assigned,
Service type provided to all data terminals (DTE)
3₁To 3_ThreeFor each data terminal (DT
E) It is impossible to provide flexible services for 3
There was a problem. According to the present invention, there is provided a packet multiplexing device
Independent for multiple data terminals to be accommodated
The purpose is to be able to provide services. [0016] FIG. 1 shows the principle of the present invention.
FIG. In FIG. 1, 1 is a packet switch, 2 is
A packet multiplexing device, which is a packet
Configure a switching network. 3 is a packet multiplexer 2.
And multiple data terminals accommodated in a packet-switched network
is there. 100 is a packet switch 1 according to the present invention.
Is a plurality of address assigning means provided in the server. 200 is
Data provided in the packet multiplexer 2 according to the present invention
Terminal selection means. [0018] The multiple address assigning means 100 performs packet multiplexing.
For each data terminal 3 accommodated via the
When a different terminal number is assigned and an incoming call arrives at each data terminal 3
The assigned terminal number to the packet multiplexer 2.
You. The data terminal selection means 200 includes a data terminal
Terminal number transferred from packet switch 1 when an incoming call arrives at 3
The incoming data terminal 3 is selected based on the number. Therefore,
The packet switching network transmits packets via a packet multiplexer.
Independent terminal numbers for each data terminal connected to the exchange
Can be assigned, and as a result,
Calls can be set up independently, and each data terminal can be independently supported.
Service becomes available and the service of the packet-switched network becomes available.
Performance is greatly improved. [0020] BRIEF DESCRIPTION OF THE DRAWINGS FIG.
You. FIG. 2 shows a packet switch according to an embodiment of the present invention.
FIG. 3 is a diagram illustrating a packet multiplex according to an embodiment of the present invention.
It is a figure which shows a weighting apparatus. The same reference numerals are used throughout the drawings.
Indicates the same object. Also target packet switching network
Is as shown in FIG. In FIG. 2, a plurality of addresses in FIG.
A plurality of terminal linking units 121 as processing units
12 and each data terminal in the storage unit 13.
(DTE) 3₁To 3_ThreeCorresponding to the subscriber control memory M
₃₁To M₃₃In FIG. 3, FIG.
Attribute setting for each port as data terminal selection means 200
The unit 221 is provided in the processing unit 22 and the storage unit 23
Port control memory M_{P5 1}To M_P53Is provided
You. . Referring to FIG. 2 to FIG.
Is a set of terminal numbers in the packet multiplexer (PMX) 2.
Instead of adding a TN, a packet multiplexer (PM
X) 3 sets of data terminals (DTE) 3 accommodated in 2)₁No
To 3_ThreeFor different terminal numbers TN₁Or T
N_ThreeShall be given. In such a case, the packet switch (PS) 1
₁The data terminal (DTE) 3₁Or
3_ThreeCorresponding to the subscriber control memory M, respectively.₃₁To M₃₃
And each subscriber control memory M₃₁To M₃₃In the
Data terminal (DTE) 3 corresponding to each₁To 3_ThreeAttached to
Terminal number TN given₁Or TN_ThreeAnd multi-address
The identification information MA is stored. A packet switch (PS) 1₁Memory in
The unit 13 includes a trunk line 4 accommodated in the line accommodation unit 11.₁You
And 4_Two, And subscriber line 5_FourLine control menu
Mori M₁₄₁, M₁₄₂And M₁₅₄Is provided and line control
Memory M₁₄₁, M₁₄₂And M₁₅₄Corresponds to each
Trunk line 4₁, 4_TwoAnd subscriber line 5_FourLine number L
N₁₄₁, LN₁₄₂And LN₁₅₄Is stored. Further, a data terminal (DTE) 3₁To 3
_ThreeBut trunk line 4_TwoMultiplexer connected by the network
Packet Switch (PS) 1 via (PMX) 2₁To
If accommodated, data terminal (DTE) 3₁To 3
_ThreeEach subscriber control memory M corresponding to₃₁To M₃₃To relay
Line 4_TwoLine control memory M corresponding to₁₄₂Line control notes
Re-number MLN = 142 is stored._TwoTo
Corresponding line control memory M_{14 Two}And a data terminal (DTE)
3₁To 3_ThreeEach subscriber control memory M corresponding to₃₁To M
₃₃Of subscriber control memory numbers MSN = 31 to 33 are stored
Is done. In the packet multiplexer (PMX) 2,
The storage unit 23 corresponds to each port of the line accommodation unit 11.
Port control memory M_P42, M_P51, M_P52And M_P53
And each port control memory M_P42, M_P51, M
_P52And M_P53Is assigned to each corresponding port
Port number PN₄₂, PN₅₁, PN₅₂And PN₅₃
And the attribute AT of the communication line connected to each port,
Port control memory M_P42Has a trunk line 4_TwoLine number LN
₂₄₂And the port control memory M_P51, M_P52
And M_P53Has subscriber line 5₁, 5_TwoAnd 5_ThreeLine
Number LN₂₅₁, LN₂₅₂And LN₂₅₃Is stored and updated.
Port control memory M_P51, M_P52And M_P53In
Each data terminal (DTE) 3₁, 3_TwoAnd 3_ThreeGranted to
Terminal number TN₁, TN_TwoAnd TN_ThreeEach
Stored. In this state, the packet switch (PS) 1
_TwoData terminal (DTE) 3 accommodated in_FiveIs the data end
End (DTE) 3₁Requesting a call setup between
Terminal (DTE) 3_FiveIs the data terminal as the called terminal number DN
End (DTE) 3₁Terminal number TN₁Call request with
The packet CR is transferred to the packet switch (PS) 1_TwoSend to
You. Packet switch (PS) 1_TwoIs the data end
End (DTE) 3_FiveThe call request packet CR received from
Analyze, Packet Switch (PS) 1₁Call request for
Transfer the packet CR. Packet switch (PS) 1₁In
It is set in the call request packet CR received by the processing unit 12.
Destination terminal number DN (= terminal number TN₁)
Subscriber control memory M provided in storage unit 13₃₁No
To M₃₄Search for the terminal number TN₁Subscriptions that are stored
Control memory M₃₁And furthermore, the subscriber control memory M ₃₁
That the multi-address identification information MA is set in
Upon detection, the multi-terminal linking unit 121 is activated. The started multi-terminal linking unit 121 joins
Control memory M₃₁Line control memory number stored in
The MLN is analyzed and the line control memory number MLN = 142
If it is identified that there is,
Connection line 4_TwoLine control memory M corresponding to₁₄₂See, case
Line number LN₁₄₂When processing unit 1 recognizes
Notify 2. The processing unit 12 sends a message from the multiple terminal linking unit 121
Notified line number LN₁₄₂Trunk line 4 corresponding to_TwoTo
And the terminal number TN as the destination terminal number DN.₃₁Wearing set
The call packet CN is transmitted. Packet switch (PS) 1₁Sent from
The incoming call packet CN is_TwoVia packet
The signal is transmitted to the multiplexing device (PMX) 2. Packet multiplexing
In the device (PMX) 2, the processing unit 22 receives the incoming call packet.
When the CN is received, the attribute setting unit 221 for each port is activated.
I do. The activated attribute setting unit 221 for each port
Called terminal number set in received call packet CN
DN (= terminal number TN₁), Is set in the storage unit 23.
Port control memory M_P51, M_P52And M
_P53Search for the terminal number TN ₁Line system where is stored
Your memory M₂₅₁Is detected, the line control memory M₂₅₁Inside
Service that analyzes and applies the attribute AT stored in
After checking the type, the port control memory M_P51Stored in
Port number PN₅₁And notifies the processing unit 22
You. The processing unit 22 includes an attribute setting unit 221 for each port.
Number PN notified from₅₁Port P corresponding to₅₁
Select port P₅₁Subscriber line 5 accommodated in₁To
Via data terminal (DTE) 3₁Send incoming call signal to
And notify the incoming call. As is clear from the above description, the present embodiment
According to this, there are no restrictions on the terminal number plan of the packet switched network.
Without giving the packet multiplexer (PMX) 2
Packet Switch (PS) 1 via₁Each housed in
Data terminal (DTE) 3₁To 3_ThreeAnd the terminal number
No. TN₁Or TN_Three, And the terminal number DN
End number TN₁Send a call request packet CR specifying
By doing so, each data terminal (DTE) 3₁To 3_ThreeTo
Individual calls can be received. FIGS. 2 to 4 show only one embodiment of the present invention.
This is only an example. For example, each port control memory M_P51To M
_P53Is not limited to incoming calls.
Terminal (DTE) 3₁To 3_ThreeWhen calling from
Corresponding port control memory M _P51To M_P53Refer to
By doing so, each can provide its own service
It becomes possible. Also, a packet switch to which the present invention is applied
1. Configuration of packet multiplexer 2 and packet switching network
Is not limited to what is shown,
Deformation is considered, but the effect of the present invention is changed in any case.
I don't know. [0037] As described above, according to the present invention, the packet exchange
In a switching network, a packet switching network is a packet multiplexer.
Each data terminal connected to the packet switch via
Terminal numbers can be assigned independently, and as a result,
Calls can be set up independently for data terminals, and each data
The terminal can use the service independently, and the packet
The serviceability of the switching network is greatly improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 illustrates the principle of the present invention. FIG. 2 illustrates a packet switch according to an embodiment of the present invention. FIG. 3 illustrates a packet multiplexing apparatus according to an embodiment of the present invention. FIG. 4 is a diagram showing an example of a packet switching network to which the present invention is applied. [Description of References] 1 packet switch (PS) 2 packet multiplexer (PMX) 3 data terminal (DTE) 4 trunk line 5 subscription User lines 11, 21 line accommodating sections 12, 22 processing sections 13, 23 storage section 100 multiple address assigning means 121 multiple terminal linking section 200 data terminal selecting means 221 per-port attribute setting section

Claims (1)

(57) Claims 1. In a packet switching network accommodating a plurality of data terminals (3) in a packet switch (1) via a packet multiplexing device (2), the packet switch (1) ), A unique terminal number is assigned to each of the data terminals (3) accommodated via the packet multiplexing device (2).
A plurality of address assigning means (1) for transferring the assigned terminal number to the packet multiplexing device (2) when an incoming call arrives at
00), and selects an incoming data terminal (3) in the packet multiplexing device (2) based on a terminal number transferred from the packet switch (1) when receiving an incoming call to the data terminal (3). A method for accommodating a multi-address terminal, comprising a data terminal selecting means (200).