JP3485028B2 - Interface device and method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a V between a local exchange (LE) and an access network equipment (AN).
5 interface device and method.

[0002]

2. Description of the Related Art Conventionally, as this type of interface device, a speech path memory device for storing a V5 bearer channel and a control channel, a V5 control device connected to the speech path memory device, and the speech path memory. P connected to the device and the V5 control device and containing PSTN subscriber information
STN accommodation unit, the speech path memory device, and the V
It is known to have an ISDN accommodating section that is connected to a control device and that accommodates ISDN subscriber information.

In this conventional interface device, the received data from the local exchange is transferred to the PSTN or ISDN, and the transmission data from the PSTN or ISDN is transferred to the local exchange.

[0004]

However, this conventional interface device has a problem that it cannot connect to the packet network.

It is an object of the present invention to use PSTN and ISDN.
In addition to providing an interface device and method capable of connecting to a packet network.

[0006]

In order to achieve such an object, the present invention has the following features. According to a first aspect of the invention, a speech path memory device for storing a V5 bearer channel and a control channel, a V5 control device connected to the speech path memory device, and a speech path memory device and a V5 control device are connected. Control memory device, speech path memory device, V5 control device, and PSTN accommodating unit that is connected to the control memory device and stores PSTN subscriber information, and connected to speech path memory device, V5 control device, and control memory device And an ISDN accommodating section for accommodating ISDN subscriber information, and a packet accommodating section for accommodating a speech path memory device, a V5 control device and a control memory device and accommodating a packet interface. In Esu device, to control the memory device,
Corresponds to the bearer channel time slot number of V5
A bit string is prepared for each subscriber type and transmission / reception direction.
The bearer channel allocation information for allocating
Store and allocate each of the bearer channel allocation information
Corresponds to the bearer channel timeslot number
The valid flag is generated at the bit position
The received data is sped up from the host device connected to the memory device.
If the chipas memory device receives V5 control
Is included in the received data received by the speech path memory device.
Based on the control channel information
Stores channel allocation information in the control memory device
Then, the V5 control device receives the reception data of the speech path memory device and the reception direction of the control memory device .
Each valid bit position of
Effective bit position and speech in the receiving direction of the memory device
The received data of the path memory device and the PSTN accommodation unit and the I
Speech is given to the SDN accommodating section and the packet accommodating section.
Speech pass memo to the host device connected to the memory device
V5 control when the device transmits the transmission data
The device writes to the speech path memory device
Control memory device transmission direction
The effective bit position is read and the control memory device
Each effective bit position in the transmission direction is assigned to the PSTN accommodation unit and the IS.
It is characterized in that it is provided to the DN accommodation unit and the packet accommodation unit .

According to a second aspect of the present invention, a speech path memory device for storing a V5 bearer channel and a control channel, a V5 control device connected to the speech path memory device, a speech path memory device and a V5 control device. Connected to the control memory device, the speech path memory device, the V5 control device and the control memory device.
PSTN accommodating section accommodating STN subscriber information, speech path memory device and V5 control device, ISDN accommodating section accommodating ISDN subscriber information connected to control memory device, speech path memory device and V5 control an interface method in the interface device and a packet container portion containing the connected to the device and the control memory device packet interface, control memory device
Corresponds to the time slot number of the bearer channel of V5
A bit string that has been prepared is prepared for speech path memory device.
The received data from the host device connected to the device
When the memory device receives the V5 control device,
Included in the received data received by the speech path memory device
Subscriber type and transmission based on control channel information
Bearer channel for allocating bits for each receiving direction
Stored in the control memory device,
Each of the bearer channel assignment information is assigned
Corresponding to the time slot number of the bearer channel
A step of generating a valid flag at a position where the V5 control device receives each valid bit position of the reception data of the speech path memory device and the reception direction of the control memory device.
The control memory device receives the
Each valid bit position in the signal direction and the speech path memory device
A step of giving received data to a PSTN accommodating section, an ISDN accommodating section and a packet accommodating section, and a speech path memory
The speech path memory device is connected to the host device connected to the device.
When transmitting the transmission data, the V5 control device
Synchronize with the timing of writing to the speech path memory device
Each valid bit in the transmission direction of the control memory device
Read position and send direction of control memory device
Each valid bit position of the PSTN accommodating part and ISDN accommodating part
And a step of supplying the packet to the packet storage unit .

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings.

As shown in FIG. 1, the interface device according to the first embodiment of the present invention comprises a speech path memory device 1, a V5 control device 2, a control memory device 3, a PSTN accommodating portion 4 and an ISDN accommodating portion 5. And a packet storage unit 6.

The speech path memory device 1 is connected to the local exchange 7. V5 control device 2
It is connected to the speech path memory device 1. The control memory device 3 includes a speech path memory device 1 and V5.
It is connected to the control device 2. The PSTN accommodating part 4, the ISDN accommodating part 5 and the packet accommodating part 6 are connected to the speech path memory device 1, the V5 control device 2 and the control memory device 3, respectively. Further, the PSTN accommodating portion 4 is connected to the PSTN 8. The ISDN accommodation unit 5 is connected to the ISDN 9. The packet storage unit 6 is connected to the packet network 10.

The speech path memory device 1 stores a V5 bearer channel and a control channel. The speech path memory device 1 receives the received data from the local exchange 7 and also sends the transmitted data to the local exchange 7.
Send to. The received data from the local exchange 7 is P
STN8 and ISDN9 and packet network 10
Contains the data of. The transmission data transmitted from the speech path memory device 1 also includes the data of the PSTN 8, ISDN 9 and packet network 10. P
The STN accommodation unit 4 accommodates PSTN subscriber information. The ISDN accommodation unit 5 accommodates ISDN subscriber information. The packet accommodation unit 6 accommodates a packet interface. The V5 control device 2 stores the bearer channel allocation information in the control memory device 3 based on the control channel information received by the speech path memory device 1 from the local exchange 7. Also,
The V5 control device 2 is a speech path memory device 1.
And the bearer channel allocation information of the control memory device 3 are read out and given to the PSTN accommodating part 4, the ISDN accommodating part 5 and the packet accommodating part 6.

When the PSTN accommodating section 4 receives the received data of the speech path memory device 1 and the bearer channel allocation information of the control memory device 3, the PSTN accommodating portion 4 extracts the PSTN from the received data based on the bearer channel allocation information.
8 received data is selected and sent to PSTN8. ISDN
When receiving the received data of the speech path memory device 1 and the bearer channel allocation information of the control memory device 3, the accommodation section 5 selects the received data of the ISDN 9 from the received data based on the bearer channel allocation information and sends it to the ISDN 9. When receiving the received data of the speech path memory device 1 and the bearer channel allocation information of the control memory device 3, the packet accommodating portion 6 selects the received data of the packet network 10 from the received data based on the bearer channel allocation information, and selects the packet. Send to network 10.

The PSTN accommodating part 4, the ISDN accommodating part 5 and the packet accommodating part 6 are respectively provided with a PSTN 8 and an ISDN.
9 and the transmission data from the packet network 10, these transmission data are given to the speech path memory device 1 based on the bearer channel allocation information of the control memory device 3. The speech path memory device 1 transmits the transmission data from the PSTN accommodating unit 4, the ISDN accommodating unit 5 and the packet accommodating unit 6 to the local exchange 7.

Next, the packet storage unit 6 will be described. The packet storage unit 6 has a gate circuit 11, a packet control device 12, a packet buffer 13 and a PHY 14. The gate circuit 11 and the packet control device 12 are connected to the speech path memory device 1, the V5 control device 2, and the control memory device 3. Further, the packet control device 12 is connected to the gate circuit 11, the packet buffer 13 and the PHY 14. The PHY 14 is the packet network 10
It is connected to the.

When receiving the received data of the speech path memory device 1 and the bearer channel allocation information of the control memory device 3, the gate circuit 11 selects the received data of the packet network 10 from the received data based on the bearer channel allocation information. Write to the packet buffer 13. The packet control device 12
Write monitoring is performed in packet units, and a PHY is generated each time loading in packet units is completed in the packet buffer 13.
14 is instructed to transfer data. In this case, PH
Upon receiving the data transfer instruction, Y14 sends the data to the packet network 10 as a packet. Also, PH
When Y14 receives a packet which is the transmission data from the packet network 10, Y14 loads the transmission data in the packet buffer 13 in packet units. The packet control device 12 writes the transmission data of the packet buffer 13 into the speech path memory device 1 via the gate circuit 11 based on the bearer channel allocation information of the control memory device 3. After this, the speech path memory device 1 transmits the transmission data from the packet buffer 13 to the local exchange 7.

Next, the interface device as the first embodiment of the present invention will be described more specifically. The V5 control device 2 terminates the V5 control channel, performs V5 protocol processing, and stores the bearer channel allocation information in the control memory device 3. In the present embodiment, V is applied to the control memory device 3.
A bit string having a depth (for example, 32 words) corresponding to the time slot number of the bearer channel of 5 is prepared, and bits are assigned for each subscriber type and transmission / reception direction. For example, in the control memory device 3, PS
The PSTNENB_T / R bit is assigned for TN, the ISDNENB_T / R bit is assigned for ISDN, and PKTENB_T / is assigned for packet.
Allocate R bits. The bit position of the control memory device 3 corresponds to the subscriber type and the transmission / reception direction. The address of the control memory device 3 creates a bit map corresponding to the time slot number of the bearer channel. The effective value "1" is written in the position corresponding to the time slot of the bearer channel to which each of the bearer channel assignment information of the control memory device 3 is assigned.

The speech path memory device 1 functions as an interface buffer for a bearer channel and a control channel between the local exchange 7 which is a host device and each part of the interface device. When receiving the received data from the local exchange 7 which is a higher-level device, the V5 control device 2 sets the bearer channel allocation information to the control memory device 3 based on the control channel information from the local exchange 7 received by the speech path memory device 1. To store. In addition, V5 control device 2
Reads the received data of the speech path memory device 1 and the bearer channel allocation information of the control memory device 3 and supplies them to the PSTN accommodating part 4, the ISDN accommodating part 5 and the packet accommodating part 6. In this case, the V5 control device 2 synchronously reads the received data of the speech path memory device 1 and the bearer channel allocation information of the control memory device 3, and each valid bit data in the receiving direction of the control memory device 3 and the speech path memory. The bearer channel data which is the reception data of the device 1 is given to the PSTN accommodating unit 4, the ISDN accommodating unit 5 and the packet accommodating unit 6. Gate circuit 11 of packet accommodating unit 6
Generates a write signal for the packet buffer 13 using the PKTENB_R bit, selects the received data of the packet network 10 from the received data from the speech path memory device 1, and writes the selected data. The packet control device 12 monitors the writing of the received data in units of packets, and instructs the PHY 14 to transfer the received data every time the loading of the received data in units of packets into the packet buffer 13 is completed.

In the case of the transmission operation of the transmission data to the local exchange 7 which is the host device, the V5 control device 2
The effective bit signal on the transmission side of the control memory device 3 is read out in synchronization with the timing of writing to the speech path memory device 1, and the PSTN accommodating portion 4 and the ISDN accommodating portion 5 are read.
And the packet storage unit 6. In this case, the gate circuit 11 of the packet accommodating unit 6 sends the transmission data loaded from the PHY 14 to the packet buffer 13 to PKTEN.
The transmission data is transmitted for each bearer channel by generating a read signal of the packet buffer 13 in synchronization with the B_T bit and transmitting it to the speech path memory device 1. When there is no data in the packet buffer 13, the packet control device 12 sends the idle pattern information to the speech path memory device 1.

[0019]

According to the present invention, PSTN and ISD
In addition to N, it is also possible to connect to packet networks.

[Brief description of drawings]

FIG. 1 is a block diagram showing an interface device as one embodiment of the present invention.

[Explanation of symbols]

1 Speech memory device 2 V5 control device 3 control memory device 4 PSTN accommodation 5 ISDN accommodation 6 Packet storage 7 local exchange 8 PSTN 9 ISDN 10 Packet network 11 gate circuit 12 Packet control device 13 Packet buffer 14 PHY

Front page continuation (58) Fields surveyed (Int.Cl. ⁷ , DB name) H04L 12/02 H04M 3/00

Claims (2)

(57) [Claims] 1. A speech path memory device storing a V5 bearer channel and a control channel, a V5 control device connected to the speech path memory device, and a speech path memory device connected to the speech path memory device and the V5 control device. A control memory device, a speech path memory device, a V5 control device and a PST connected to the control memory device.
A PSTN accommodating portion accommodating N subscriber information, the speech path memory device, the V5 control device, and an ISD connected to the control memory device.
An interface device comprising: an ISDN accommodating section accommodating N subscriber information; and a packet accommodating section accommodating a packet interface connected to the speech path memory device, the V5 control device and the control memory device, In the control memory device, the V5 bearer
Prepare a bit string corresponding to the time slot number of the channel
Assign bits for each subscriber type and transmission / reception direction
Bearer channel allocation information for storing the bearer
Before each of the channel allocation information is assigned
The bit corresponding to the time slot number of the bearer channel.
From the host device connected to the speech path memory device.
When the speech path memory device receives received data
In addition, the V5 control device includes the speech path memory.
The control channel included in the received data received by the device
The bearer channel allocation information is based on the channel information.
The broadcast, stored in the control memory device, the V5 control device, the received data and the control memory device of the speech path memory device
Synchronously reading each valid bit position in the receiving direction
The reception direction of the control memory device.
Effective bit position and reception data of the speech path memory device
Data to the PSTN accommodating section, the ISDN accommodating section, and the packet accommodating section, and forwards them to a higher-level device connected to the speech path memory device.
When the speech path memory device transmits the transmission data
In addition, the V5 control device includes the speech path memory.
The controller is synchronized with the writing timing to the device.
Read each valid bit position in the transmit direction of the memory device
Of the control memory device in the transmission direction.
Each valid bit position is assigned to the PSTN accommodation unit and the ISD.
An interface device which is provided to the N accommodation unit and the packet accommodation unit . 2. A speech path memory device for storing a V5 bearer channel and a control channel, a V5 control device connected to the speech path memory device, and a speech path memory device and a V5 control device connected to the speech path memory device. A control memory device, a speech path memory device, a V5 control device and a PST connected to the control memory device.
A PSTN accommodating portion accommodating N subscriber information, the speech path memory device, the V5 control device, and an ISD connected to the control memory device.
Interface method in an interface device having an ISDN accommodating section accommodating N subscriber information, and a packet accommodating section accommodating a packet interface connected to the speech path memory device, the V5 control device and the control memory device And the control memory device is the V5 bearer
Bit string provided is that corresponds to the time slot number of the channel
From the host device connected to the speech path memory device.
When the speech path memory device receives received data
And the V5 control device includes the speech path memory.
The control channel included in the received data received by the device
For each subscriber type and transmission / reception direction based on channel information
Bearer channel allocation information for allocating bits
Is stored in the control memory device, and the bearer
Each of the channel allocation information is allocated
Bits corresponding to bearer channel timeslot numbers
A step of generating a valid flag to the position, the V5 control device, the received data and the control memory device of the speech path memory device
Synchronously reading each valid bit position in the receiving direction
The reception direction of the control memory device.
Effective bit position and reception data of the speech path memory device
Data to the PSTN accommodating section, the ISDN accommodating section and the packet accommodating section, and a host device connected to the speech path memory device.
When the speech path memory device transmits the transmission data
And the V5 control device includes the speech path memory.
The controller is synchronized with the writing timing to the device.
Read each valid bit position in the transmit direction of the memory device
Of the control memory device in the transmission direction.
Each valid bit position is assigned to the PSTN accommodation unit and the ISD.
Interface method characterized by performing the steps, a to give the N receiving unit and the packet receiving unit.