JPH0918477A - SMDS billing data generation method and SMDS billing data generation device - Google Patents

Abstract

(57) [Summary] [Object] The present invention relates to an SMDS accounting data generation method and apparatus used when performing SMDS accounting for performing a connectionless high-speed digital data exchange service, and can withstand actual operation. It aims to be able to support only the number of incoming messages. [Structure] Destination address compression unit 10
Storage means 30 for storage and source address compression section 40
, Source address / carrier compression unit 50, destination address / source address / carrier recompression unit 60, destination address / source address / carrier recompression information as destination address compression information, source address information and It is configured to have charging storage means 90a and 90b capable of writing carrier information, segment count information, and packet count information and reading the written information to the charging processing unit.

Description

Detailed Description of the Invention

(Table of Contents) Industrial Application Field of the Prior Art (FIGS. 16 to 18) Problems to be Solved by the Invention Means and Actions for Solving the Problems Embodiments (FIGS. 1 to 15)

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an S for performing a connectionless type high speed digital data exchange service.
The present invention relates to a SMDS billing data generation method and device used when billing an MDS (Switched Multi-megabit Digital Service).

[0003]

2. Description of the Related Art Recently, in a specific area or company,
In order to transmit information, an L configured by connecting a plurality of terminals such as workstations to each other
AN (Local Area Network) is generally applied. Also, with regard to this LAN, its versatility will increase as the information-oriented society becomes more sophisticated, and furthermore, by connecting LANs arranged in various places to each other, LA
There is also an increasing need to construct a system capable of widely transmitting information between N.

SMDS (Switched Multi-megabit Digit
al Service) is a broadband switching application, which is a service that realizes wide information transmission by connecting LANs, and is a kind of connectionless type high-speed digital data exchange service. Also, in this SMDS,
According to SIP (SMDS Interface protocol), a variable length packet (Layer 3-Protocol Data Uni
t, L3-PDU) to a plurality of fixed-length cells (layer 2 data: Layer2-Protocol Data Unit, L2-PDU)
Information is transferred in units of fixed length cells.

That is, in SMDS, L2- is used during SS (Switching System) for switching cells.
Data is made to flow in the cell by cell format with PDU as a unit. Here, the above-mentioned fixed length cell has a data format as shown in FIG. 16, for example.

That is, as shown in FIG. 16, L2-P
The DU 100 has a data amount of 16 bits × 27 (54 octets), the area 100a having a data length of 5 bits stores MID information, and the area 100b having a data length of 8 bits has an SNI-ID. Information is stored, DA information is stored in an area 100c having a data length of 8 octets, and SA information is stored in an area 100d having a data length of 8 octets. In addition,
Area 100e is the trailer section.

Here, MID (Message ID) as information stored in the area 100a indicates the type of message transmitted and received between subscribers, DA (Destinat).
ionAddress) indicates the destination address, SA (Source
Address) indicates the calling side address, and SNI-
The ID (Subscriber Network Interface-IDentifier) indicates the type (address) of the subscriber network interface.

In the L2-PDU 100, the header section stores ST (Segment Type) information (not shown) indicating which part of the L3-PDU before being divided. As this ST information, for example, the original L
3-BO indicating that the cell includes the beginning part of PDU
M (Beginning of Message), EOM (End of Message) indicating the cell including the final part, BOM and EO
COM indicating that the cell includes an intermediate part other than M
In addition to (Continuation of Message), there is SSM (Single Segment Message) in which a message is completed in one cell.

By the way, in the above-mentioned SMDS exchange system, in order to determine the network usage fee of individual subscribers of the SMDS network, for example, TR-TSV, which is a technical reference issued by Bell Communication Research Inc. in the United States, is used.
A billing process is performed as shown in -000775. That is, the charging process by the SMDS exchange system is performed by a charging system as shown in FIG. 17, for example.

Here, in the charging system shown in FIG. 17, the SMDS switching network side is provided with a data generation unit 101, a data aggregation unit 102, a data format processing unit 103 and a data transfer unit 104, and RAO (re
Venue accounting office) side, accounting information management unit 10
5 is provided. Data generation 1
01 indicates a packet (L3-PDU) in SMDS
The SMDS is used to determine whether SMDS charging data as usage information is required, and generate this charging data when necessary.
It constitutes a billing data generation device.

A data aggregation unit 1
02 receives the data from the data generation unit 101,
The number of packets and the number of segments transferred between the caller and the callee are aggregated at a specified time interval. Further, a data formatting section (data formatting) 10
3 is the usage information of the SMDS switching network before the charging information management unit 105, which will be described later, processes the charging information.
Information as audit information and audit informatio as audit information
It is for converting n and time change information into a predetermined format.

Also, a data transmitting section
Reference numeral 104 denotes the converted usage information, audit information and ti from the data format processing unit 103.
The me change information is transferred to the charging information management unit 105. Accounting information management unit (RAO processing) 1
05 receives the data transferred from the data transfer unit 104 and manages the charging information.

With such a configuration, the data generator 10
1, the charging data generated in the data totaling unit 102 and the data format processing unit 103 is transferred to the charging information management unit 105 by the data transfer unit 104,
The billing information management unit 105 receives data from the data transfer unit 104, manages billing information, and performs desired billing processing for each subscriber.

By the way, in detail, the data generation processing unit 101 is an L3-PD to which the charging data is to be charged.
It is designed to be generated for each U, and this charging data is DA, SA, SNI address, Condition Code, Segmen.
In addition to 6 parameters of t Count and Packet Count,
It is composed of carrier information and the like. Here, the Condition Code indicates the information transfer state, and specifically indicates the presence / absence of an error during data transmission and the error type. In addition, SNI add
ress indicates the address of the subscriber network interface, Segment Count is the divided L2-
Packet Count is an L3-PDU that indicates the number of PDUs.
It indicates the number of

By the way, in order to process these billing data in the data generation unit 101, the amount of data is enormous, so that generally, the types of these parameters can be limited. Is compressed in the process of generating billing data. For example, DA can be relatively limited. That is, the above technical reference TR-TSV-000772
"Up to 16 individual addresses per SNI, up to 4
It is defined that 8 types of group addresses can be defined, and there is a maximum of 64 types including individual addresses and group addresses.
It can be limited to the type of address information.

Similarly, for SNIaddress, DA
It is a parameter that can be limited because it can be determined by. Furthermore, the Condition Code is a parameter that can be limited because only a few types are defined in the above technical reference. The carrier information can also be limited. However, it is difficult to limit SA.

That is, the above-mentioned technical reference TR
As shown in -TSV-000772, the SA screening function is performed on the receiving side. This SA
The screening function means that a table for SA screening is provided on the receiving side, and S of the incoming L3-PDU is received.
Compare A with SA registered in the above table,
It is to decide whether to accept an incoming L3-PDU.

Here, whether or not to accept the incoming L3-PDU is determined by an algorithm of accepting when the SA of the incoming L3-PDU is included in the SA registered in the above table, and whether the incoming L3-PDU is accepted. There is an algorithm that does not accept when SA is included in SA registered in the above table. In addition, according to the above-mentioned technical reference TR-TSV-000772, S
The maximum number of A screenings is stipulated to be 128, and as the SA screening algorithm, either the former method or the latter method is selected as a network at the time of joining.

Here, when the former method is selected,
Since only 128 SAs at maximum can be accepted, the parameters of SAs can be limited in the end, and compression processing can be performed on SAs as well. However, when the latter method is selected, the number of SAs to be accepted cannot be specified. .
Therefore, it is impossible to limit SA and it is difficult to compress.

By the way, in a general telephone, the majority of the callees are specific parties, and it is considered that the number of calls received from unspecified parties is extremely small and the number is small, such as a wrong call. . Therefore, even in the SMDS exchange, if only the SA of a specific partner is prepared, it is considered that the charging data can be collected without preparing for all possible bit patterns showing SA.

Therefore, as a device having the functions of the data generation unit 101 and the data totalization unit 102 in FIG. 17 described above, an SMDS accounting data generation device as shown in FIG. 18 is considered. Here, in FIG. 18, reference numeral 111 denotes a DA compression unit, and this DA compression unit 111
Is input with a fixed length cell as an L2-PDU obtained by dividing an L3-PDU as shown in FIG. 16, and DA information, SA information,
Carrier information, SNI address information, MID
Read information and information about data length, especially DA
Information is compressed and output as DA compression information RDA. These input data are delayed and output as they are.

Reference numeral 112 denotes an ST identification section, which is
The T identification unit 112 uses the L2-PD from the DA compression unit 111.
The segment type is identified based on the U header information and the like. Here, ST (segment type, Se
gment Type) is the L2-P that composes a message when a message is sent and received between subscriber terminals.
It shows the type of DU.

Further, 113 is a storage RAM, and this storage RAM 113 stores DA compression information RDA, SA information and carrier information from the DA compression unit 111 using SNI address information as an address. Also,
114 is an SA compression unit, and this SA compression unit 114
The SA information and the carrier information are input from the storage RAM 113, the SA information is compressed, and the SA compression information RSA and the carrier information are output.

Reference numeral 115 is a (RSA + carrier) compression section, and this (RSA + carrier) compression section 115 receives the information RSA and carrier information from the SA compression section 114, and uses a combination of these information as one information. It is to compress. Reference numeral 116 denotes an L2-PDU addition unit, and this L2-PDU addition unit 116 is
SA information, carrier information, MID information and SNI-ID
The number of L2-PDUs corresponding to information is counted.

Reference numeral 117 is an L3-PDU adder, and the L3-PDU adder 117 is an L3 configured by L2-PDU corresponding to the DA information, SA information, carrier information, MID information and SNI-ID information. -Count the number of PDUs. 118a and 118b are billing RAMs, and the billing RAMs 118a and 118b are
Is the SA information, carrier information, L2-PDU adder 11
6 count value information and L3-PDU adder 117
It stores the count value information from.

Further, the charging RAMs 118a and 118b have a two-dimensional matrix configuration in which two address information bits of a DA compressed address and a (RSA + carrier) compressed address are used in the address direction. With such a configuration, in the SMDS accounting data generation device shown in FIG. 18 described above, the DA compression information R is used in the DA compression unit 111.
Generate DA. In the storage RAM 113, the DA compression information RDA, SA information and carrier information are stored in S
The NI address information and the MID address information are accumulated as addresses.

Further, the SA compression section 114 compresses the SA information, and the (RSA + carrier) compression section 115 compresses the SA information to generate the SA compression information RS.
Compress A and carrier information to generate information RSAC. Then, in the charging RAMs 118a and 118b, DA
Using the compression information RDA and the information RSAC in which RSA and carrier information are compressed as addresses, SA information and carrier information, segment count information from the L2-PDU adder 116, and packet count information from the L3-PDU adder 117. By writing and on the two-dimensional matrix, SMDS accounting data is generated.

[0028]

However, in the billing data generation method by the SMDS billing data generation device shown in FIG. 18, the number of SNIs, the number of individual addresses,
When the number of group addresses and the number of receivable messages are increased, it is necessary to increase the number of supported RAMs.

That is, regarding the charging RAMs 118a and 118b having the above-mentioned two-dimensional matrix address configuration,
When trying to increase the number of receivable SAs, (RSA
(+ Carrier) R for the number of DAs as the number of patterns increases
The AM area is required, and the current hardware technology cannot construct the charging RAM area to support the number of received messages that can withstand actual operation.

That is, considering the current hardware technology, although the compression number can be limited as DA, (R
In the current SMDS billing system, the SA + carrier can support up to 2 ⁸ = 256 types due to the data amount of the LSI and RAM for configuring the compression unit. If this is exceeded, There is no area for writing on the two-dimensional matrix, and the excess billing data is discarded.

For example, when the number of SNIs is 32, the number of individual addresses is 8, the number of group addresses is 8 and the receivable message is 256, RAM areas for the messages shown in the following equation (1) are required. . 32 × (8 + 8) × 256 = 131072 [Message] (1) Further, when the number of SNI is 32, the number of individual addresses is 8, the number of group addresses is 8 and the receivable message is 1024, the following is shown. RA for the message shown in Expression (2)
M area is required.

32 × (8 + 8) × 1024 = 524288 [Message] (2) Further, the number of SNI is 64, the number of individual addresses is 16, the number of group addresses is 48, and the receivable message is 204
In the case of 8, the RAM area for the message shown in Expression (3) below is required. 64 × (16 + 48) × 2048 = 8388608 [Message] ... (3) The present invention has been conceived in view of such a problem, and by reducing the hardware scale, the present hardware technology provides An object of the present invention is to provide an SMDS accounting data generation method and apparatus capable of supporting the number of received messages that can withstand actual operation.

[0033]

Therefore, the SMDS accounting data generating method of the present invention according to claim 1 is as follows:
In a network that can generate SMDS charging data using a plurality of charging parameters, compress destination address information as one charging parameter of the plurality of charging parameters to generate destination address compression information. From the storage means for storage, the destination address compression information, the source address information as the other charging parameter, the carrier information, the subscriber network interface address information as the other charging parameter is stored as an address, and thereafter, By receiving the end information of the message, the destination address compression information, the source address information, and the carrier information read from the storage means are compressed in at least three stages or more. And re-compression processing, and writing the above destination address compression information, source address information and carrier information, segment count information, and packet count information in the charging storage means using the most compressed charging parameter as an address. The SMDS billing data is thus generated.

Further, the SMDS charging data generating device of the present invention according to claim 2 is one of the plurality of charging parameters in a network capable of generating SMDS charging data using a plurality of charging parameters. A destination address compression unit that compresses destination address information as a charging parameter and delays and outputs other charging parameters of the plurality of charging parameters, and a destination address from the destination address compression unit. Storage means for storing the compressed information, the source address information and the carrier information as the other charging parameters as the addresses of the subscriber network interface address information as the other charging parameters, and the termination information of the message. By receiving the destination address compression information, the source address information, and the carrier information read from the storage means by receiving, the source address information is compressed, and the destination address is also compressed. Compressed information, the carrier information, and source address information that is not subjected to compression processing are output with a delayed source address compression unit, source address compression information from the source address compression unit, destination address compression information, and source address. Information, receiving the carrier information,
The source address compression information and the carrier information are compressed, and the destination address compression information, the source address information that is not compressed and the carrier information that is not compressed are delayed and output. A carrier compression unit,
Regarding the source address / carrier compression information, the destination address compression information, the source address information, and the carrier information from the source address / carrier compression unit, the destination address compression information and the source address / carrier compression information are received. And a destination address / source address / carrier recompression unit that further performs compression processing and delays and outputs the destination address compression information, the source address information not subjected to the compression processing, and the carrier information not subjected to the compression processing. , The destination address / source address / carrier recompression unit from the destination address / source address / carrier recompression information is used as an address. Information, source address information and carrier information, segment count information, packet count information, and a charging storage unit capable of reading the written information to the charging processing unit are provided. Then, SMDS charging data is generated.

Further, in the present invention according to claim 3, the destination address compressing unit, the source address compressing unit, the source address / carrier compressing unit, the destination address / source address / carrier recompressing unit respectively have reference values. A plurality of compression processing units each including a register for storing information and a comparator for comparing whether or not the reference value information from the register and the information to be compressed match are provided, and the output from each compression processing unit is provided. Based on the above, the reference value information and the information to be compressed are characterized by being configured with a comparison result determination control unit that outputs information of the compression processing unit that matches with each other.
The above compression units can output compression information.

Further, in the present invention according to claim 4, in addition to the information of the compression processing unit in which the comparison result determination control unit matches the reference value information and the information to be compressed, the reference value information described above is added. And the matching information indicating that the information to be compressed matches the information to be compressed. Further, according to the present invention of claim 5, the matching information output from the comparison result determination control unit of the destination address compression unit is stored in the storage unit for storage, and end information of the message is stored. Upon reception, the matching information read from the storage means enables the source address compression unit, and the matching information output from the comparison result determination control unit of the source address compression unit. The source address / carrier compression unit is enabled, and the destination address / source address / carrier recompression unit is generated by the matching information output from the comparison result determination control unit of the source address / carrier compression unit. Are enabled and the destination address The charging storage means is enabled based on the matching information output from the comparison result determination control section of the address / carrier recompression section, whereby only the appropriate SMDS data can be obtained. Charging data can be generated.

According to the present invention of claim 6, the matching information output from the comparison result determination control section of the destination address compression section is stored in the storage means for storage and the matching information of the message is stored. By receiving the termination information, the source address compression unit is enabled by the matching information read from the storage unit and output from the comparison result determination control unit of the source address compression unit. The source address / carrier compression unit is enabled by the matching information, and the destination address / source address carrier is output by the comparison result determination control unit of the source address / carrier compression unit. The recompressor is enabled and the destination Logical product information of the matching information output from the comparison result determination control unit of the destination / source address / carrier recompression unit and the matching information output from the comparison result determination control unit of the destination address compression unit. It is characterized in that the charging storage means is enabled based on
It is possible to generate billing data only for proper SMDS data.

Further, in the present invention according to claim 7, the segment count information, based on the matching information output from the comparison result determination control unit of the destination address / source address / carrier recompression unit, It is characterized in that the writing of the packet count information to the billing storage means is controlled.
The billing data is generated only for proper SMDS data.

According to the present invention of claim 8, the matching information output from the comparison result determination control unit of the destination address / source address / carrier recompression unit and the destination address compression unit of the destination address / source address / carrier recompression unit. It is characterized in that writing of the segment count information and the packet count information to the billing storage means is controlled based on the logical product information with the matching information output from the comparison result determination control unit. By this, billing data relating only to appropriate SMDS data is generated.

Further, according to the present invention of claim 9, reference value information is set in advance in each register of the destination address compression section, and the source address compression section and the source address / carrier compression section are set. , The destination address, the source address, and the carrier recompression unit are each characterized in that reference value information is set in accordance with the input information, whereby the generated charging data is charged. It is stored in the storage means for use with a small capacity.

[0041]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an SMDS accounting data generation device according to an embodiment of the present invention. S shown in FIG.
Also in the MDS billing data generation device, as shown in FIG.
The function as the data generation unit 101 and the data totalization unit 102 in the charging system shown in FIG. 17, which is applied in a network capable of generating SMDS charging data using a plurality of charging parameters, similar to that shown in FIG. have.

Further, the SMDS accounting data generating apparatus shown in FIG. 1 is inputted with cell data 1 as L2-PDU having a data format as shown in FIG. 2, and is compressed based on this cell data. It is designed to generate billing data. Here, in this FIG.
Cell data 1 is (16 bits + parity bit) x 2
It is composed of 7 data amounts (54 octets). That is, 16 clock signals are generated by 27 clock signals (0 to 26).
It is designed to be input in bit parallel.

The frequency of this clock signal can be about 9 MHz, for example. Also, a cell frame is a signal for identifying the beginning of a cell, and a cell enable is a signal indicating valid / invalid of a cell. Further, ST (Segment Type) information is stored in the 2-bit area 1a of the cell data 1, and SNI (Subscriber Network Interface) is stored in the 7-bit area 1b.
Information, 10-bit area 1c has MID (Message IDent
ifier) information, data length in the 8-bit area 1d
Information, DA (Destination Ad) in the 64-bit area 1e
dress) information, SA (Source A in the 64-bit area 1f)
ddress) information, a carrier (Car
rier) information is stored.

The ST information indicates which part of the L3-PDU in the preceding stage where the L2-PDU is divided, the SNI indicates the address of the subscriber network interface, and the MID is transmitted / received between the subscribers. It indicates the type of message to be sent. 1h is a parity bit, 1i is a data part, and 1j is a trailer part. By the way, 10 in FIG. 1 is DA
The DA compression unit 10 is a compression unit (destination address compression unit), and the DA compression unit 10 stores the DA (Destination) stored in the area 1e for the input cell data 1.
Address, destination address) information is compressed and output as RDA information (DA compression information), while other charging parameters (DAM information, which will be described later,
[SA + carrier] information, SNI information, MID information, S
The T information and the data length information) are delayed and output.

Further, the DA compression section 10 will be described in detail with reference to FIG.
It has a configuration as shown in FIG. Here, in FIG. 3, 11-1 to 11-n are compression processing units, and the compression processing units 11-1 to 11-n are stored in the area 1e of the cell data 1 input in 16 bits in parallel. The DA information is extracted and the compression processing is performed on the DA information. The DA information is provided with registers 12-1 to 12-n and comparators 13-1 to 13-n, respectively.

The number n of compression processing units described above is set based on the type of DA information (sum of the number of individual addresses and the number of group addresses over all SNI blocks). The registers 12-1 to 12-n are for preliminarily storing DA information as reference value information in the input cell data upon access by the firmware.
In addition, the comparators 13-1 to 13-n include the register 12-1.
˜12-n, and D in 16-bit parallel input cell data as information to be compressed
The information A is input, and it is compared whether or not they match.

Further, 14 is a comparison result judgment control unit, and this comparison result judgment control unit 14 is provided for each compression processing unit 11.
The compression processing units 11-1 to 11-1 in which the reference value information and the DA information to be compressed match based on the outputs from the -1 to 11-n.
The 1-n information (for example, the registration numbers of the registers 12-1 to 12-n) is output, and the DAM information as the matching information indicating that the reference value information and the information to be compressed match. ing.

For example, as shown in FIG. 4, the number of SNI information accommodated in the network is 32 (SNI-
If the IDs are '0' to '1F') and the number of individual addresses and group addresses for each SNI is set to 8, the type of DA information described above is As shown in 4), the number is 512, and the number of compression processing units (the number of registers and comparators) n is also set to 512.

Type of DA information = 32 [SNI] × (8 [individual address] +8 [group address]) = 512 = 2 ⁹ Therefore, in the comparison result determination control unit 14, as shown in FIG. The compression processing unit 1 according to the DA information of
Compressed DA information RDA as information 1-1 to 11-n
Can be "0" to "1FF". Also, 5
Since 12 = 2 ⁹ and can be converted into a 9-bit signal, compared with DA information (64 bits) before compression,
55 bits can be saved.

A cell data delay unit 15 delays the input cell data, clock signal, cell frame signal and cell enable signal by 3 cells and outputs the cell data. . As a result, the DA compressing unit 10 has, for example, 9 MH as shown in FIG.
Clock signal of about z (9M), cell frame (C
F), cell enable (CE), and (16 bits + parity bit) cell data are simultaneously input in parallel.

Further, from the DA compression unit 10, a clock signal (9M) delayed by 3 cells from the input signal, a cell frame signal (CF), a cell enable signal (CE) and a cell of (16 bits + parity bit). Data (Di00 ~
Di15, PTY), signal indicating DAM information, and 9-bit R
The DA signals (MAD0 to MAD8) are simultaneously output in parallel.

Numeral 20 is an ST (Segment Type) discriminator, and this ST discriminator 20 is stored in the area 1a in the cell data 1 flowing from the DA compressor 10.
The T information is extracted, and the segment type ST is identified based on the information stored in the area 1a.
Further, 30 is a storage RAM (storage means for storage),
The storage RAM 30 stores RDA information from the DA compression unit 10, SA information as another charging parameter, carrier information, and DAM information as an SN as another charging parameter.
The I information and the MID information are stored as addresses.

Specifically, the storage RAM 30 has a structure as shown in FIG. 6, for example. That is,
The destination SNI-ID is used as the upper address, and MI
Using the D information as the lower address, the corresponding SA information (see areas 31-1 and 31-2) and carrier information (area 32-)
1, 32-2), RDA information (areas 33-1 and 33)
-2) and DAM information (see areas 34-1 and 34-2).

In the storage RAM 30, the ST identification section 2
When the EOM as the end information of the message is received based on the segment type ST identified by 0, the SA information, the carrier information, about the corresponding cell data,
The RDA information and the DAM information are output to the SA compression unit 40 described later. Further, the SA compression unit (source address compression unit) 40 receives the EOM information from the storage RAM 30 as a cell enable signal to receive the RDA information, DAM information, SA information and carrier information read from the storage RAM 30. , SA information is compressed and output as RSA information, and RDA information, DAM information, and uncompressed (SA + carrier) information are delayed and output.

By the way, as shown in FIG. 7, the SA compression unit 40, like the DA compression unit 10, has the compression processing unit 4 as well.
1-1 to 41-m, the comparison result determination control unit 44 and the cell data delay unit 45 are provided, but the cell data delay unit 4
Reference numeral 5 basically has the same function as that of the DA compression unit 10 described above (see reference numeral 15). Here, the compression processing units 41-1 to 41-m store the S data stored in the area 1f for the cell data 1 that is 16-bit parallel input.
A information is extracted, and compression processing is performed on this SA information.
-M and comparators 43-1 to 43-m.

The registers 42-1 to 42-m autonomously store different SA information as reference value information according to the input information. Further, the comparator 43-1
To 43-m are input with the reference value information from the registers 42-1 to 42-m and the SA information in the 16-bit parallel input cell data 1 as the information to be compressed, and these information match. The comparison result is output as the compression processing units 41-1 to 41-m.

Further, the comparison result determination control unit 44, based on the output from each compression processing unit 41-1 to 41-m, the compression processing unit 4 in which the reference value information and the SA information to be compressed match.
Information of 1-1 to 41-m (for example, registers 42-1 to 4-4
2-m registration number) is output as SA compression information RSA, and the matching compression processing units 41-1 to 41-
In addition to the information of m, SAM information is output as matching information indicating that the reference value information and the information to be compressed match.

The number m of compression processing units described above is adaptively set based on the number of received messages (in this case, the number of received messages is 256, and m is equal to the number of received messages, m = 256). Can be).
Therefore, m = 256 = 2 ⁸ and the RSA information is output in the form of an 8-bit parallel signal. As a result, SA information before compression (64 bits)
56 bits can be saved.

Specifically, for example, as shown in FIG.
The A compression unit 40 has a storage RAM 30 converted into (16 bits + parity bits) cell data by logic.
Information [RDA information, DAM information, (SA + carrier) information] from a clock signal (9M) of about 9 MHz,
A cell frame signal (CF) and a cell enable signal (CE) as EOM information are input in parallel.

On the other hand, from the SA compression section 40, a clock signal (9M) delayed by 3 cells from the input signal, a cell frame signal (CF), a cell enable signal (CE) and (16 bits + parity bit). Cell data of (Di00
~ Di15, PTY), a signal indicating SAM information, and an 8-bit RSA signal (MAD0 to MAD7) are simultaneously output in parallel.

By the way, in the registers 42-1 to 42-m, when the SA information as the reference value information different from each other is autonomously stored, the registers 42-1 to 42-in the initial state where the cell data does not flow. The value m is set to an empty state, and the number of registers used in the comparison result determination control unit 44 is set to "0". In this state, when new cell data is input, the SA information of this cell data is registered in the register 42-1 and the number of used registers is set to "0". If the SA information of the cell data to be subsequently input is different from that stored in the register 42-1, the SA information of the cell data is registered in the register 42-2.
And the number of used registers is incremented to '1'.

Similarly, every time cell data having unregistered SA information is input, the register 42-3 is input.
The unregistered SA information is sequentially registered in .about.42-m. Therefore, different types of SA information are autonomously stored in the registers 42-1 to 42-m. When the SA information is registered in the final register 42-m, the register 42- is registered until it is reset.
No new SA information is registered in 1 to 42-m.

Further, 50 is a (RSA + carrier) compression section (source address / carrier compression section), and this (RSA + carrier) compression section 50 receives the SAM information from the SA compression section 40 as an enable signal. Of the input RSA information, RDA information, SA information and carrier information, the RSA information and carrier information are compressed and output as RSAC information,
The RDA information and the information without compression processing (SA + carrier) are delayed and output.

By the way, (RSA + carrier) compression unit 5
As for 0, in detail, as shown in FIG. 9, the compression processing units 51-1 to 51-m, the comparison result determination control unit 54, and the cell data delay unit 55 are included. Basically, the DA compression unit 10 and the SA compression unit 4 described above
It has the same function as that in 0 (see reference numerals 15 and 45).

Here, the compression processing units 51-1 to 51-m
Is for extracting (RSA + carrier) information from the 16-bit parallel input cell data and performing compression processing on this (RSA + carrier) information. Registers 52-1 to 52-m and a comparator are respectively provided. 53-1 to 53-m. Register 52-1
52-m autonomously store (RSA + carrier) information as reference value information according to input information. Further, the comparators 53-1 to 53-m have the register 5
Reference value information from 2-1 to 52-m and (RSA + carrier) information of 16-bit parallel input cell data are input, and it is compared whether or not they match.

Further, the comparison result determination control unit 54, based on the output from each compression processing unit 51-1 to 51-m, the compression processing unit in which the reference value information and the (RSA + carrier) information to be compressed match. Information of 51-1 to 51-m (for example, registration numbers of registers 52-1 to 52-m) is compressed information (RS
S) as matching information indicating that the reference value information and the information to be compressed match.
The CM information is output.

In this case, m = 256 = 2 ⁸ , and the RSAC information is output in the form of an 8-bit parallel signal. Thereby, for example, as shown in FIG. 10, the (RSA + carrier) compression unit 5
In 0, the information [RSA information, RDA information, (SA + carrier) information and DAM information] from the SA compression unit 40 converted into cell data of (16 bits + parity bit) by logic is a clock signal of about 9 MHz. (9
M), a cell frame signal (CF), and a cell enable signal (CE) as SAM information are input in parallel.

Further, from the (RSA + carrier) compression section 50, a clock signal (9M) delayed by 3 cells from the input signal, a cell frame signal (CF), a cell enable signal (CE) and (16 bits +). Parity bit cell data (Di00 to Di15, PTY), a signal indicating SCM information described later, and an 8-bit RSAC signal (MAD0 to MAD7) are simultaneously output in parallel.

By the way, in the registers 52-1 to 52-m, when (RSA + carrier) information as reference value information different from each other is autonomously stored, in the initial state in which no cell data is introduced, the register 52-1 is stored. ~ 5
2-m is left empty, and when new cell data is input, (RSA + carrier) information of this cell data is registered in the register 52-1.

Further, the cell data (R
If the (SA + carrier) information is different from the one stored in the register 52-1, the (RSA
(+ Carrier) information is registered in the register 52-2. Similarly, every time cell data having unregistered (RSA + carrier) information is input, the register 52-3
The unregistered (RSA + carrier) information is sequentially registered in .about.52-m. Therefore, register 52-1
Different types of (RSA + carrier) information are autonomously stored in ~ 52-m.

All the registers 52-1 to 52-m
When the (RSA + carrier) information as the reference value information is registered in, the (RSA + carrier) compression unit 50 performs full-out output, and even if a new message is received thereafter, it is not reset. The message cannot be newly registered and the message is discarded.

Further, as shown in FIG. 2 described above, the address information for SA information and carrier information of the 16-bit parallel input cell data 1 requires a total area of 114 bits of SA 64 bits + carrier 50 bits. However, since the compressed address information is represented by 8 bits, 106 bits can be saved. Further, 60 is a (RDA + RSAC) compression section (destination address / source address / carrier recompression section), and this (RDA + RSAC) compression section 60 is
By receiving the SCM information from the (RSA + carrier) compressing unit 50 as an enable signal, the RDA information about the RSAC information, the RDA information, and the (SA + carrier) is calculated.
Information and RSAC information are further compressed and RDSA
In addition to outputting as C information, RDA information and information not subjected to compression processing (SA + carrier) information are delayed and output.

By the way, the (RDA + RSAC) compression section 6
As for 0, in detail, as shown in FIG. 11, the compression processing units 61-1 to 61-m, the comparison result determination control unit 64, and the cell data delay unit 65 are provided. Basically, it has the same function as that in the DA compression unit 10, SA compression unit 40 or (RSA + carrier) compression unit 50 (see reference numeral 15, 45 or 55).

Here, the compression processing units 61-1 to 61-m
Extracts (RDA + RSAC) information from the cell data input in 16 bits in parallel,
SAC) information is subjected to compression processing, and registers 62-1 to 62-m and comparators 63-1 to 63-1 are provided, respectively.
63-m. Registers 62-1 to 62-
In m, the (RDA + RSAC) information as the reference value information is autonomously stored, and the comparators 63-1 to 63-3 are used.
-M compares the reference value information from the registers 62-1 to 62-m with the (RDA + RSAC) information to be compressed.

Further, the comparison result judgment control section 64, based on the outputs from the respective compression processing sections 61-1 to 61-m, the compression processing section 61 in which the reference value information and the (RDA + RSAC) information to be compressed match. Information of -1 to 61-m (for example, registration numbers of registers 62-1 to 62-m) is compressed information (RD
SAC information) and, in addition to the matched information of the compression processing units 61-1 to 61-m, SCM information as matching information indicating that the reference value information and the information to be compressed match. It is like this.

In this case, m = 256 = 2 ⁸ and the RDSAC information is output in the form of an 8-bit parallel signal. This allows
(RDA + RSAC) RSAC input to the compression unit 60
Information, RDA information, (SA + carrier) information and DAM
The information is converted into cell data of (16 bits + parity bit) by logic as shown in FIG. 12, and a clock signal (9M) of about 9 MHz, a cell frame signal (CF), and a cell enable signal as SCM information. (CE) is input in parallel.

From the (RDA + RSAC) compressor 60, a clock signal (9M) delayed by 3 cells from the input signal, a cell frame signal (CF), a cell enable signal (CE), and (16 bits + parity). Bit) cell data (Di00 to Di15, PTY), a signal indicating later-described DSCM information, and an 8-bit RDSAC signal (MAD0 to MAD).
7) and are simultaneously output in parallel,
As a result, 9-bit RDA information and 8-bit RSA
The number of bits can be further saved by compressing the C information and the 8-bit RDSAC signal.

In the registers 62-1 to 62-m, (RDA + R) as reference value information different from each other is used.
(SAC) When storing information autonomously, the register 62-
When 1-62-m is left empty and cell data is newly input, (RDA + RSA of this cell data
C) Register information in register 62-1.

In addition, the cell data (R
If the DA + RSAC) information is different from that stored in the register 62-1, the (RDA of the relevant cell data is
+ RSAC) information is registered in the register 62-2. Similarly, every time cell data having unregistered (RDA + RSAC) information is input, the register 62-3 is input.
~ 62-m are not registered in sequence (RDA + RS
AC) Register information. Therefore, register 62-1
~ 62-m are different types of (RDA + RS
AC) information is stored autonomously.

Further, 70 is an L2-PDU adder, and this L2-PDU adder 70 is provided with the corresponding DA information and S.
The segment information is calculated from the A information, the carrier information, the MID information, and the data information (see 1d in FIG. 2) corresponding to the SNI information, and the segment information is output as segment count information. Further, reference numeral 80 is an L3-PDU addition unit, and this L3-PDU addition unit 80 is the DA information, S
The packet count information corresponding to the A information, the carrier information, the MID information, and the SNI information is output.

Further, 90a and 90b are accounting RAMs (accounting storage means), and the accounting RAMs 90a and 90b.
Is the RDSAC from the (RDA + RSAC) compression unit 60.
(RDA + RSAC) compression unit 6 using information as an address
RDA information and (SA + carrier) information from 0, and L
The segment count information from the 2-PDU addition unit 70 and the packet count information from the L3-PDU addition unit 80 are written, and these write information are charged information management unit 105 as a charging processing unit (see FIG. 17). )
To be read.

Further, the charging data is written in the charging RAMs 90a and 90b by writing KAKIN information [(RDA + RAC) as logical product information of the DSCM information of the (RDA + RSAC) compression unit 60 and the DAM information of the DA compression unit 10.
SAC) compression unit 60 and DA compression unit 10 are both controlled to be in an enabled state based on information indicating that compression matching has been achieved.

As a result, when the charging data is written from the (RDA + RSAC) compression unit 60 to the charging RAMs 90a and 90b, all the DA information, SA information and carrier information are matched based on the above KAKIN information. It can be done in a detached state. Also, when writing the segment count information from the L2-PDU adder 70 and the packet count information from the L3-PDU adder 80 into the charging RAMs 90a and 90b, the DSCM information output from the (RDA + RSAC) compressor 60 described above. And write control is performed based on the logical product information of the DAM information.

By the way, the charging RAM 90a uses, as shown in FIG. 13, RDDAC information as an address.
SA information, carrier information, segment count information, packet count information, and RDA information are stored. Specifically, S corresponding to RDSAC '0'
The A information (64 bits) is stored in the area 90a-1, and the carrier information (ICI Carrier ID, Incoming Network ID, Inc.
oming ICI TPS ID, IIT; 50 bits) is area 90a-2
, The segment count information (24 bits) is stored in the area 90a-3, and the packet count information (2
3 bits) is stored in area 90a-4, and RDA information (9 bits) is stored in area 90a-5. Below, R
The charging parameters corresponding to DSAC'1 'to RDSAC'FF' are also stored in the same manner.

The charging RAM 90a is 512 KW in terms of hardware, as shown in FIG. 14 (a).
It is composed of eight DRAMs 91a to 98a having a × 8 bit configuration. That is, in the DRAMs 91a to 94a,
Data corresponding to the above RDSAC'0 'to RDSAC'7F' is stored in a 32-bit width, and the DRAM 95a to
In 98a, charging parameters corresponding to RDSAC '80'to'FF'are stored.

The charging RAM 90b may have the same structure as that of the charging RAM 90a shown in FIG. 13 described above, and as shown in FIG.
It is composed of eight DRAMs 91b to 98b of KW × 8 bit configuration, and these DRAMs 91b to 98b also store charging parameters in the same manner as the aforementioned DRAMs 91a to 98a.

Further, the above-mentioned charging RAMs 90a and 90b
Are composed of surfaces different from each other, and the charging RAMs 90a, 90b are formed by regularly switching the surfaces.
In either one of the above, hard access such as writing processing of charging data is performed. The operation of the SMDS accounting data generating device according to the embodiment of the present invention having the above-described configuration will be described below with reference to the time chart of FIG.

First, when determining a network usage fee for a subscriber of the SMDS network, the data generation unit 101 and the data totalization unit 1 provided on the SMDS switching network side.
In the SMDS accounting data generation device as 02,
Generate data for SMDS billing by using multiple billing parameters. Here, when the SMDS charging data generating device generates the SMDS charging data, the DA compression unit 10 compresses the DA information of the plurality of charging parameters to generate the RDA information.
The RDA information is output together with the DAM information as the matching information and the other uncompressed charging parameters (SA information, carrier information, SNI information, and MID information) (see time point (t1) in FIG. 15).

Further, in the storage RAM 30, RDA, DA
M, SA information and carrier information as other charging parameters, and SNI information as other charging parameters are stored as addresses. Then, the ST identification unit 20 changes to E
When the OM information is identified (see time point (t2) in FIG. 15),
The SA compression unit 40 reads the RDA information, SA information, and carrier information from the storage RAM 30.

At this time, the SA compression unit 40 is enabled by the EOM reception, and the S compression unit 40 stores the S data from the storage RAM 30.
Start compressing the A information. After that, the compressed SA information is sent to the RSA
The information is output together with the matching information SAM and other data (see time point (t3) in FIG. 15). further,
When receiving the SAM information from the SA compression unit 40, (RSA +
The carrier) compression unit 50 is enabled and starts compression of the RSA information and carrier information compressed by the SA compression unit 40. Then, after a lapse of 3 cells from the start of compression, the compressed (RSA + carrier) information is output as RSAC information together with the matching information SCM and other data (see time point (t4) in FIG. 15).

Upon receiving the SCM information from the (RSA + carrier) compression unit 50, the (RDA + RSAC) compression unit 60 is enabled, and the RDA information from the DA compression unit 10 and the (RSA + carrier) compression unit 50 from the DA compression unit 50 are enabled. Start compressing the RSAC information. Then, after 3 cells have passed from the start of compression, the data is compressed (RDA
+ RSAC) information is output as RDSAC information together with matching information DSCM (time point (t5) in FIG. 15).
reference).

Further, the charging RAMs 90a and 90b are
(RDA + RSAC) Matching information DSCM in the compression unit 60 and matching information R in the DA compression unit 10
It is enabled by the KAKIN information as the logical product information with DA, and the RDSAC information is used as the address.
The segment count information and the packet count information are written together with the RDA information, the SA information, and the carrier information (see time point (t5) in FIG. 15).

That is, in the L2-PDU adder 70, DA
The data length information (length) from the compression unit 10 is input, the actual number of segments is calculated in advance, and the above-mentioned KAKI
When N information is input, the previous data is incremented and the number of L2-PDU as the total number of segments is written to the charging RAMs 90a and 90b. Also, L3-
When the KAKIN information is input, the PDU addition unit 70 increments the previous data and writes the L3-PDU number, which is the packet number, into the billing RAMs 90a and 90b.

Note that the charging RAMs 90a and 90b described above are switched in face periodically, and hard access such as the above-described charging data writing processing is performed by the charging RAM 90.
It is performed in either a or 90b. As a result, in the SMDS billing data generating device according to the present embodiment, the billing RAM 90a,
On the 90b, the compressed DA information and (RSA + carrier) information are further compressed (recompressed) as an address, and RDA, SA, carrier, the number of L2-PDU, and the number of L3-PDU as charging data are accumulated. Being done. For example, when an L3-PDU having the same SA information arrives, it is added to the L2-PDU and L3-PDU having the same address.

The charging data generated on the charging RAMs 90a and 90b as described above is not hard accessed by the firmware (not shown).
It is read from areas a and 90b. Further, the read billing data is assembled by being converted into a data format of a predetermined format in the format processing unit 103, and transferred to the billing information management unit 105 by the data transfer unit 104. As a result, the billing information management unit 105 can receive the data from the data transfer unit 104, manage the billing information, and perform a desired billing process for each subscriber.

In the firmware, the charge R
The DA information is identified based on the RDA information read from the AMs 90a and 90b. When identifying the DA information, the RDA information for the DA information registered in the DA compression unit 10 is referred to. I'm indexing. As described above, according to the SMDS accounting data generation device according to the embodiment of the present invention, the DA information RDA, (RSA + carrier) compressed in the (RDA + RSAC) compression unit 60 is used.
The information is further compressed (recompressed) and output as RDSAC, and the charging RAMs 90a and 90b can store the charging data by using this RDASC as an address. Therefore, the number of bits required for the address information for storing the charging data. Since it is possible to significantly reduce the number of received messages, it is possible to significantly reduce the circuit scale of the device for billing, and to easily configure a circuit that can support the number of received messages that can withstand actual operation. On the other hand, there is an advantage that the cost for configuring the device can be realized by reducing the device scale.

In addition, the SMDS charging data generating apparatus according to the present embodiment has a charging RAM that maintains the current storage capacity.
By using, the billing information that can be stored can be greatly increased, and there is also an advantage that it is possible to easily cope with an increase in the number of SNIs or an increase in network subscribers. In the above-described embodiment, each compression unit 10, 40,
50, 60 comparison result determination control unit 14, 44, 54, 6
4 outputs the matching information in addition to the compression information, the invention is not limited to this. Even if only the compression information is output, at least the address information for storing the charging data by the compression processing is output. Since the required number of bits can be significantly reduced, the same advantages as described above can be obtained.

Further, in the above-mentioned embodiment, (RD
A + RSAC) Matching information RDS from the compression unit 60
The writing to the charging RAMs 90a and 90b is controlled based on the logical product information of the AC and the matching information DAM from the DA compression unit 10. However, the present invention is not limited to this, and (RD
(A + RSAC) It is also possible to control the writing to the charging RAMs 90a and 90b based only on the matching RDSAC information output from the comparison result determination control unit 64 of the compression unit 60. The same advantages as can be obtained.

Further, in the above-mentioned embodiment, (R
DA + RSAC) Matching information RD from the compression unit 60
Based on the logical product information of the SAC and the matching information DAM from the DA compression unit 10, the L2-PDU addition units 70, L
3-segment count information from the PDU adder 80,
Although the writing of the packet count information to the billing RAMs 90a and 90b is controlled, the present invention is not limited to this, and (RD
(A + RSAC) Accounting RAM 90 for segment count information and packet count information based only on matching information output from the comparison result determination control unit 64 of the compression unit 60.
It is needless to say that writing to a and 90b can be controlled, and even in this case, the same advantages as those in the above-described embodiment can be obtained.

Further, according to the SMDS accounting data generating device of the present invention, the circuit size or the signal format of the SMDS accounting data generating device shown in the above-mentioned embodiment is not limited, and any data length and bit can be set. A circuit according to the number, the amount of data, the number of SNIs, or the number of network subscribers may be configured, and even in this case, the same advantages as those obtained in the above-described embodiment can be obtained.

[0101]

As described in detail above, the present invention (claim 1)
~ 9) SMDS accounting data generation method and SMD
According to the S charging data generation device, the destination address compression information, the source address information, and the carrier information are compressed or recompressed in at least three stages or more, and the charging storage means is compressed most. Destination address / source address / carrier recompression from parameter destination address / source address / carrier recompression information as an address, destination address compression information, source address information and carrier information, segment count information, packet count Since the information can be written and the written information can be read out to the billing processing unit, the number of bits required for the address information for storing the billing data can be greatly reduced and billing can be performed. The circuit scale of the device can be significantly reduced, and a circuit that can support the number of received messages that can withstand actual operation can be easily configured, while the device can be configured by reducing the device size. There is an advantage that it is possible to realize cost reduction.

Also, the accounting RA that maintains the current storage capacity
If M is used, the amount of billing information that can be stored can be greatly increased, so that there is also an advantage that it is possible to easily cope with an increase in the number of SNIs or an increase in network subscribers.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a billing data generator for SMDS according to an embodiment of the present invention.

FIG. 2 is a diagram showing a data format of cell data as an L2-PDU input to the SMDS accounting data generation device according to the present embodiment.

FIG. 3 is a block diagram showing a configuration of a DA compression unit according to the present embodiment.

FIG. 4 is a diagram for explaining the operation of the DA compression unit according to the present embodiment.

FIG. 5 is a diagram showing a configuration of a DA compression unit according to the present embodiment.

FIG. 6 is a diagram showing a configuration of a storage RAM according to the present embodiment.

FIG. 7 is a block diagram showing a configuration of an SA compression unit according to the present embodiment.

FIG. 8 is a diagram showing a configuration of an SA compression unit according to the present embodiment.

FIG. 9 is a block diagram showing a configuration of a (RSA + carrier) compression unit according to the present embodiment.

FIG. 10 is a diagram showing a configuration of a (RSA + carrier) compression unit according to the present embodiment.

FIG. 11 is a block diagram showing a configuration of a (RDA + RSAC) compression unit according to the present embodiment.

FIG. 12 is a diagram showing a configuration of a (RDA + RSAC) compression unit according to the present embodiment.

FIG. 13 is a diagram showing a configuration of a billing RAM according to the present embodiment.

14 (a) and 14 (b) are diagrams showing a hardware configuration of a charging RAM according to the present embodiment.

FIG. 15 is a time chart for explaining the operation of the SMDS accounting data generation device according to the present embodiment.

FIG. 16 is a diagram showing a data format of a fixed length cell.

FIG. 17 is a block diagram showing a charging system based on the SMDS exchange method.

FIG. 18 is a block diagram showing an SMDS accounting data generation device.

[Explanation of symbols]

 1 Cell Data 1a to 1i Area 10 DA Compressor 11-1 to 11-n, 41-1 to 41-m Compression Processor 12-1 to 12-n, 42-1 to 42-m Register 13-1 to 13 -N, 43-1 to 43-m Comparator 14, 44, 54, 64 Comparison result determination control unit 15, 45, 55, 65 Cell data delay unit 20 ST identification unit 30 Storage RAM 31-1 to 34-1, 31-2 to 34-2 region 40 SA compression unit 50 (RSA + carrier) compression unit 51-1 to 51-m, 61-1 to 61-m compression processing unit 52-1 to 52-m, 62-1 to 62 -M register 53-1 to 53-m, 63-1 to 63-m comparator 60 (RDA + RSAC) compression unit 70 L2-PDU addition unit 80 L3-PDU addition unit 90a, 90b charging RAM 90a-1 to 90a-4 Area 91a 98a, 91b to 98b DRAM 100 L2-PDU 100a to 100e area 101 data generation unit 102 data aggregation unit 103 data format processing unit 104 data transfer unit 105 billing information management unit 111 DA compression unit 112 ST identification unit 113 storage RAM 114 SA compression Part 115 (RSA + carrier) Compressor 116 L2-PDU adder 117 L3-PDU adder 118a, 118b Billing RAM

Claims (9)

[Claims] 1. An SMD using a plurality of charging parameters
In a network capable of generating S charging data, the destination address information as one charging parameter of the plurality of charging parameters is compressed to generate destination address compression information, and then stored in the storage means for storage. The destination address compression information, the source address information and the carrier information as the other charging parameters, and the subscriber network interface address information as the other charging parameters are stored as addresses, and then the termination information of the message is received. Due to
For the destination address compression information, the source address information, and the carrier information read from the storage means for storage, at least three stages or more,
After performing the compression and recompression processing, at least once, the most compressed charging parameter among the recompressed charging parameters is used as an address in the charging storage means, and the destination address compression information, the source address information and A method for generating SMDS accounting data, characterized by writing carrier information, segment count information, and packet count information. 2. SMD using multiple charging parameters
In a network capable of generating S billing data, the destination address information as one billing parameter of the plurality of billing parameters is compressed and the other billing parameters of the plurality of billing parameters are delayed. The destination address compression unit that outputs the destination address compression information, the destination address compression information from the destination address compression unit, the source address information as the other billing parameter, and the carrier information as the subscriber network interface address as the other billing parameter. Storage means for storing information as an address, and the destination address compression information read from the storage means for receiving by receiving the end information of the message, the source Source address compression that receives the dress information and carrier information, compresses the source address information, and delays and outputs the destination address compression information, the carrier information, and the source address information that is not compressed. And a source address compression information, a destination address compression information, a source address information, and a carrier information from the source address compression unit, and performs compression processing on the source address compression information and the carrier information. A source address / carrier compression unit that delays and outputs the destination address compression information, the source address information that is not compressed, and the carrier information that is not compressed, and a source address / carrier compression unit. Address / carrier compression information, the destination address compression information, the source address information, and the carrier information, and further compresses the destination address compression information and the source address / carrier compression information. Destination address compression information, source address information without compression processing, and carrier information without compression processing are output with a delay, destination address, source address, carrier recompression unit, and destination address source address Destination address from carrier recompression unit
Accounting storage means capable of writing the destination address compression information, the source address information and the carrier information, the segment count information, and the packet count information using the source address / carrier recompression information as an address and reading the written information to the accounting processing unit. An SMDS billing data generation device, comprising: 3. The destination address compressing unit, the source address compressing unit, the source address / carrier compressing unit, the destination address / source address / carrier recompressing unit respectively stores reference value information and the register. And a plurality of compression processing units each including a comparator for comparing whether or not the reference value information from the compressed information matches the information to be compressed, and the reference value information and the compression based on the output from each compression processing unit. 3. The SMDS accounting data generation device according to claim 2, further comprising a comparison result determination control unit that outputs information of the compression processing unit that matches the information to be processed. 4. The comparison result determination control unit, in addition to the information of the compression processing unit in which the reference value information and the information to be compressed match, the reference value information and the information to be compressed match. 4. The SMDS accounting data generation device according to claim 3, wherein the SMDS charging data generation device is configured to output matching information to the effect. 5. The matching information output from the comparison result determination control unit of the destination address compression unit is stored in the storage unit for storage, and the termination information of the message is received, The source address compression unit is enabled by the matching information read from the storage unit for storage,
The source address / carrier compression unit is enabled by the matching information output from the comparison result determination control unit of the source address compression unit, and output from the comparison result determination control unit of the source address / carrier compression unit. The destination address / source address / carrier recompression unit is enabled by the matching information, and the matching output from the comparison result determination control unit of the destination address / source address / carrier recompression unit is performed. Based on the information
4. The SMDS accounting data generating device according to claim 3, wherein the accounting storage means is enabled. 6. The matching information output from the comparison result determination control unit of the destination address compression unit is stored in the storage unit for storage, and by receiving end information of the message, The source address compression unit is enabled by the matching information read from the storage unit for storage,
The source address / carrier compression unit is enabled by the matching information output from the comparison result determination control unit of the source address compression unit, and output from the comparison result determination control unit of the source address / carrier compression unit. The destination address / source address / carrier recompression unit is enabled by the matching information, and the matching output from the comparison result determination control unit of the destination address / source address / carrier recompression unit is performed. The charging storage means is enabled based on AND information of the information and the matching information output from the comparison result determination control section of the destination address compression section. Item 3. The SMDS billing data generation device according to item 3. 7. The charging storage means for storing the segment count information and the packet count information based on the matching information output from the comparison result determination control unit of the destination address / source address / carrier recompression unit. 4. The SMDS accounting data generating device according to claim 3, wherein writing to the SMDS is controlled. 8. The matching information output from the comparison result determination control unit of the destination address / source address / carrier recompression unit and the comparison information determination control unit of the destination address compression unit. 4. The SMDS accounting data generation according to claim 3, wherein writing of the segment count information and the packet count information to the accounting storage means is controlled based on logical product information with the matching information. apparatus. 9. A reference value information is set in advance in each register of the destination address compression unit, and the source address compression unit, the source address
4. The SMDS charging data according to claim 3, wherein reference value information is set in each of the registers of the carrier compression unit and the destination address / source address / carrier recompression unit according to input information. Generator.