KR960020169A - AAL 3/4 receiver - Google Patents
AAL 3/4 receiver Download PDFInfo
- Publication number
- KR960020169A KR960020169A KR1019940031341A KR19940031341A KR960020169A KR 960020169 A KR960020169 A KR 960020169A KR 1019940031341 A KR1019940031341 A KR 1019940031341A KR 19940031341 A KR19940031341 A KR 19940031341A KR 960020169 A KR960020169 A KR 960020169A
- Authority
- KR
- South Korea
- Prior art keywords
- header
- trailer
- cpcs
- sar
- processing unit
- Prior art date
Links
- 238000000034 method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/43—Assembling or disassembling of packets, e.g. segmentation and reassembly [SAR]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5638—Services, e.g. multimedia, GOS, QOS
- H04L2012/5646—Cell characteristics, e.g. loss, delay, jitter, sequence integrity
- H04L2012/5652—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly
- H04L2012/5653—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly using the ATM adaptation layer [AAL]
- H04L2012/5657—Cell construction, e.g. including header, packetisation, depacketisation, assembly, reassembly using the ATM adaptation layer [AAL] using the AAL3/4
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
본 발명은 ATM통신방식의 AAL 3/4수신처리장치에 관한 것으로, 스타트(start)신호에 따라 모듈로 48카운트하여 FIFO 제어신호, CRC인에이블신호, SAR 헤더선택신호, SAR 트레일러선택신호, CPCS 헤더선택신호, CPCS트레일러선택신호, 완료신호를 발생하는 카운터 및 제어신호발생부(10); 와 상기 완료신호와 세그먼트타입 데이타와 같이 데이타를 입력하여 수신된 메세지의 길이를 계산하는 길이연산부(20); FIFO리드회로(30) ; CRC처리부(40) ; SAR헤더처리부(50) ; SAR 트레일러처리부(60) ; CPCS헤더처리부(70) ; CPCS 트레일러처리부(80); 상기 카운터 및 제어부의 FIFO제어신호에 의해 마지막 세그먼트의 길이를 카운트하는 마지막 세그먼트처리부(90) ; FIFO라이트회로(100) ; 및 에러처리부(110)를 구비하여 AAL 3/4 수신처리기능을 효율적으로 수행한다.The present invention relates to an ATM communication method AAL 3/4 reception processing apparatus, which counts 48 modules into modules according to a start signal, FIFO control signal, CRC enable signal, SAR header selection signal, SAR trailer selection signal, and CPCS. A counter and control signal generator 10 for generating a header selection signal, a CPCS trailer selection signal, and a completion signal; A length calculator 20 for inputting data such as the completion signal and segment type data to calculate a length of a received message; FIFO lead circuit 30; CRC processing unit 40; SAR header processing unit 50; SAR trailer processing unit 60; CPCS header processing unit 70; CPCS trailer processing unit 80; A last segment processor (90) for counting the length of the last segment by the counter and the FIFO control signal of the controller; FIFO light circuit 100; And an error processing unit 110 to efficiently perform the AAL 3/4 reception processing function.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제1도는 본 발명에 따른 AAL 3/4 수신처리장치를 설명하기 위하여 도시한 것으로서,1 is a diagram illustrating an AAL 3/4 reception processing apparatus according to the present invention.
(가)는 AAL계층의 데이타 흐름 구조를 도시한 도면,(A) is a diagram showing a data flow structure of an AAL layer;
(나)는 SAR-PDU 데이타의 포맷을 도시한 도면,(B) shows the format of the SAR-PDU data;
(다)는 CPCS-PDU 데이타의 포맷을 도시한 도면,(C) shows the format of CPCS-PDU data;
제2도는 본 발명에 따른 AAL 3/4 수신처리장치를 도시한 블럭도.2 is a block diagram showing an AAL 3/4 reception processing apparatus according to the present invention.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940031341A KR0123223B1 (en) | 1994-11-26 | 1994-11-26 | A device for receiving atm cells according to aal type 3/4 protocol |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940031341A KR0123223B1 (en) | 1994-11-26 | 1994-11-26 | A device for receiving atm cells according to aal type 3/4 protocol |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960020169A true KR960020169A (en) | 1996-06-17 |
KR0123223B1 KR0123223B1 (en) | 1997-11-20 |
Family
ID=19399120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940031341A KR0123223B1 (en) | 1994-11-26 | 1994-11-26 | A device for receiving atm cells according to aal type 3/4 protocol |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0123223B1 (en) |
-
1994
- 1994-11-26 KR KR1019940031341A patent/KR0123223B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR0123223B1 (en) | 1997-11-20 |
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