WO2004040861A1 - 通信システム及び方法 - Google Patents
通信システム及び方法 Download PDFInfo
- Publication number
- WO2004040861A1 WO2004040861A1 PCT/JP2003/013984 JP0313984W WO2004040861A1 WO 2004040861 A1 WO2004040861 A1 WO 2004040861A1 JP 0313984 W JP0313984 W JP 0313984W WO 2004040861 A1 WO2004040861 A1 WO 2004040861A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- window size
- bucket
- transmission window
- packet
- size information
- Prior art date
Links
Classifications
-
- 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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
-
- 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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
-
- 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
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0025—Transmission of mode-switching indication
-
- 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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1635—Cumulative acknowledgement, i.e. the acknowledgement message applying to all previous messages
-
- 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
- H04L47/26—Flow control; Congestion control using explicit feedback to the source, e.g. choke packets
- H04L47/263—Rate modification at the source after receiving feedback
-
- 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
- H04L47/29—Flow control; Congestion control using a combination of thresholds
-
- 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
- H04L47/36—Flow control; Congestion control by determining packet size, e.g. maximum transfer unit [MTU]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/163—In-band adaptation of TCP data exchange; In-band control procedures
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/40—Network security protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/28—Timers or timing mechanisms used in protocols
Definitions
- the present invention relates to a communication system and a method for controlling congestion in a transport protocol.
- transmitting means for transmitting real-time data via a communication network
- receiving means for receiving data loss rate information from a data transmission destination of the transmitting means
- data loss from the receiving means There is known a device having a rate control means for controlling a transmission rate based on a rate (for example, see Japanese Patent Application Laid-Open No. 2001-320440).
- the rate control unit compares the data loss rate information with a preset first threshold and a second threshold, and determines that the data loss rate is equal to the first threshold and the second threshold.
- the transmission rate transmitted by the transmitting means is changed when the transmission rate is lower than the threshold value.
- control is performed so as to reduce the transmission rate transmitted by the transmission means.
- transmitting means for transmitting a bucket with a transmission window size determined in response to new window size information added to the cumulative ACK packet, Receiving and counting the bucket in the transmission window size transmitted to generate a packet count value, and accumulating the packet count value when the bucket count value reaches a predetermined reference number corresponding to the transmission window size.
- a new window size information generating means to be added to the K bucket.
- a communication system comprising a transmitting means for transmitting a bucket with a transmission window size determined in response to the new window size information added to the cumulative ACK packet every time the cumulative ACK packet is received. And receiving and counting the bucket in the transmission window size transmitted from the transmission means to generate a bucket count value, wherein the force value is a predetermined value corresponding to the transmission window size. Receiving the accumulated ACK packet when the reference number is reached, and transmitting the new window size information based on a bucket arrival time required for the packet of the predetermined reference number corresponding to the transmission window size to arrive. Generate new window size information to be added to the accumulated ACK packet And a communication method comprising: BRIEF DESCRIPTION OF THE FIGURES
- FIG. 1 is a block diagram showing a configuration of a communication system according to Embodiment 1 of the present invention.
- FIG. 2 is a flowchart for explaining the operation of the communication system according to Embodiment 1 of the present invention
- FIG. 3 is a diagram for explaining one specific example of operation in the communication system according to Embodiment 1 of the present invention.
- FIG. 4 is a diagram for explaining another specific example of the operation in the communication system according to Embodiment 1 of the present invention.
- FIG. 5 is a block diagram showing a configuration of a communication system according to Embodiment 2 of the present invention.
- FIG. 6 is a flowchart for explaining the operation of the communication system according to Embodiment 2 of the present invention.
- the gist of the present invention is that the receiving means generates new window size information based on a packet arrival time required for a predetermined reference number of buckets corresponding to the transmission window size to arrive, and the transmitting means generates the new window size information based on the new window size information. To transmit a packet with a transmission window size determined in response.
- FIG. 1 is a block diagram showing a configuration of a communication system according to Embodiment 1 of the present invention.
- communication system 100 includes transmitting apparatus 110 and receiving apparatus 120.
- the transmitting device 110 transmits data to the receiving device 120 via the IP network 130. Further, receiving apparatus 120 returns predetermined information to transmitting apparatus 110 via IP network 130.
- the transmitting device 110 is composed of a Link layer 111, an IP layer 112, a TCP layer 113 and And an APP layer 114.
- the receiving device 120 includes a Link layer 122, an IP layer 122, a TCP layer 123, and an APP layer 124.
- FIG. 2 is a flowchart illustrating an operation of communication system 100 according to Embodiment 1 of the present invention.
- transmitting apparatus 110 transmits a packet.
- the transmitting device 110 responds to the initially set transmission window size or the new window size information added to the cumulative ACK packet each time the cumulative ACK packet is received from the receiving device 120.
- the bucket is transmitted with the determined transmission window size.
- receiving apparatus 120 receives the bucket from transmitting apparatus 110 and determines whether or not the received bucket is the first packet in one transmission window size (step ST203). ).
- the first bucket in one transmission window size contains the transmission window size.
- receiving apparatus 120 stores time 1 ⁇ at which the first bucket was received (step ST204).
- reception device 120 receives and counts the packet in one transmission window size transmitted from transmission device 110.
- Bucket 1 generate a count value and determine whether the count value has reached a predetermined reference number corresponding to the transmission window size, i.e., whether all packets in one transmission window size have been received Judge
- Step ST 205 When the count value has not reached the predetermined reference number corresponding to the transmission window size in step ST205, that is, when not all the packets in one transmission window size have been received, the process returns to step ST201.
- the count value is When a predetermined reference number corresponding to the transmission window size has been reached, that is,
- receiving apparatus 120 sets a predetermined threshold value to T th and determines whether or not Tw ⁇ T th (step ST208).
- step ST208 the receiving apparatus 120 generates the new window size information for instructing the reduction of the transmission window size (step ST209).
- step ST209 the receiving apparatus 100 generates new window size information for instructing an increase in the transmission window size (step ST210).
- the receiving device 120 generates a cumulative ACK bucket indicating the bucket count value when the packet from the transmitting device 110 is normally received and the bucket count value is normally generated.
- the new ACK bucket and the new window size information are added to the accumulated ACK bucket, and the accumulated ACK bucket and the new window size information are returned to the transmitting device 110 (step ST211).
- the receiving apparatus 100 deletes the stored value of T 2 or T 2 (step ST 2 12), and returns to step ST 201.
- a packet AS 1 indicating the accumulated ACK packet and the new window size information is returned to the transmitting device 110.
- the new window size information instructs to reduce the transmission window size.
- the receiving apparatus 120 sets the new window size based on the bucket arrival time Tw required for the predetermined number of buckets corresponding to the transmission window size to arrive. Since information is generated and the transmitting device 110 transmits a packet with a transmission window size determined in response to the new window size information, the amount of buckets transmitted before occurrence of congestion of the transmitted packet is determined. Can be controlled.
- FIG. 5 is a block diagram showing a configuration of a communication system according to Embodiment 2 of the present invention.
- the same components as those in the first embodiment of the present invention are denoted by the same reference numerals.
- a communication system 500 includes: It comprises a transmitting device 110 and a receiving device 5110.
- the transmitting device 110 transmits data to the receiving device 510 via the IP network 130.
- the receiving device 510 returns predetermined information to the transmitting device 111 via the IP network 130.
- the transmission device 110 includes a Link layer 111, an IP layer 112, a TCP layer 113, and an APP114 layer.
- the receiving device 510 includes a Link layer 511, an IP layer 512, a TCP layer 513, and an APP layer 514.
- FIG. 6 is a flowchart illustrating an operation of communication system 500 according to Embodiment 2 of the present invention.
- transmitting apparatus 110 transmits a packet.
- the transmitting device 110 sets the transmission window size that is initially set, or the new window size information added to the cumulative ACK bucket every time the cumulative ACK packet is received from the receiving device 510.
- the bucket is sent with the determined send window size.
- the receiving device 5110 receives the bucket from the transmitting device 110, and determines whether the received packet is the first packet in one transmission window size (step ST60). 3).
- the first bucket in one transmission window size contains the transmission window size.
- receiving apparatus 5100 stores time 1 ⁇ at which the first bucket was received (step ST604).
- reception device 510 receives and counts the bucket in one transmission window size transmitted from transmission device 110.
- a bucket count value is generated to determine whether the count value has reached a predetermined reference number corresponding to the transmission window size, ie, one It is determined whether or not all buckets with the transmission window size of (1) have been received (step ST 605).
- the process returns to step ST601. .
- the count value has reached a predetermined reference speed corresponding to the transmission window size in step ST 605, i.e., when receiving all packets in one transmission window size, and stores the time T 2 (step ST 606).
- receiving apparatus 510 sets a predetermined first threshold value to T thl, and determines whether or not Tw ⁇ T thl (step ST 608).
- a predetermined second threshold value is set to T th2 (T thl> T th2), and it is determined whether Tw ⁇ T th2 is satisfied (step ST 609).
- the receiving device 5110 When Tw ⁇ Tthl in step ST608, the receiving device 5110 generates new window size information for instructing a reduction in the transmission window size (step ST610). Further, when Tw ⁇ Tth2 in step ST609, receiving apparatus 5110 generates new window size information for instructing to maintain the transmission window size (step ST611). Also, when Tw ⁇ Tth2 is not satisfied in step ST609, receiving apparatus 5100 generates new window size information for instructing an increase in the transmission window size (step ST612).
- the receiving device 5110 generates a cumulative ACK packet indicating the bucket count value when the packet from the transmitting device 110 is normally received and the bucket count value is normally generated, By adding the new window size information to this cumulative ACK bucket, the cumulative ACK bucket and the new window size information are added. Reply to transmitting device 110 (step ST613). Thereafter, the receiving device 5 10 deletes the stored values of T ⁇ and T 2 (step ST614), and returns to step ST601.
- the receiving apparatus 5110 uses the new window size based on the bucket arrival time Tw required for the predetermined number of buckets corresponding to the transmission window size to arrive. Since information is generated and the transmitting apparatus 110 transmits a bucket with a transmission window size determined in response to the new window size information, the amount of packets transmitted before congestion occurs in the transmitted bucket is determined. Can be controlled.
- the receiving means generates new window size information based on the bucket arrival time required for a predetermined reference number of buckets corresponding to the transmission window size to arrive, and the transmitting means Since the packet is transmitted with the transmission window size determined in response to the new window size information, the amount of the packet transmitted before the congestion of the transmitted packet occurs can be controlled.
- the present invention can be applied to a communication system and method for controlling congestion in a transport protocol.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Quality & Reliability (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Communication Control (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60334014T DE60334014D1 (de) | 2002-11-01 | 2003-10-31 | Kommunikationssystem und Verfahren |
US10/533,076 US20060080459A1 (en) | 2002-11-01 | 2003-10-31 | Communication system and method |
EP20030770074 EP1557985B1 (en) | 2002-11-01 | 2003-10-31 | Communication system and method |
AT03770074T ATE480073T1 (de) | 2002-11-01 | 2003-10-31 | Kommunikationssystem und verfahren |
AU2003280674A AU2003280674A1 (en) | 2002-11-01 | 2003-10-31 | Communication system and method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002320129A JP3763812B2 (ja) | 2002-11-01 | 2002-11-01 | 通信システム及び方法 |
JP2002-320129 | 2002-11-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004040861A1 true WO2004040861A1 (ja) | 2004-05-13 |
Family
ID=32211839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/013984 WO2004040861A1 (ja) | 2002-11-01 | 2003-10-31 | 通信システム及び方法 |
Country Status (9)
Country | Link |
---|---|
US (1) | US20060080459A1 (ja) |
EP (1) | EP1557985B1 (ja) |
JP (1) | JP3763812B2 (ja) |
KR (1) | KR100754067B1 (ja) |
CN (1) | CN1282343C (ja) |
AT (1) | ATE480073T1 (ja) |
AU (1) | AU2003280674A1 (ja) |
DE (1) | DE60334014D1 (ja) |
WO (1) | WO2004040861A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101867512A (zh) * | 2010-04-15 | 2010-10-20 | 华为技术有限公司 | 数据传输控制方法和装置 |
US8656480B2 (en) * | 2005-03-17 | 2014-02-18 | Samsung Electronics Co., Ltd | Method for negotiating security-related functions of subscriber station in wireless portable internet system |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100631757B1 (ko) * | 2004-10-02 | 2006-10-09 | 삼성전자주식회사 | 전송률을 동적으로 변경하여 무선 데이터를 전송하는 방법및 장치 |
US7898954B2 (en) * | 2004-10-20 | 2011-03-01 | Qualcomm Incorporated | Power-efficient data reception in a communication system with variable delay |
BRPI0612473A2 (pt) | 2005-05-04 | 2010-11-23 | Lg Electronics Inc | método para transmitir informações de controle em um sistema de comunicação sem fio e método de atualização de janela de transmissão usando o mesmo |
EP1898546A3 (en) | 2006-09-08 | 2011-04-27 | NTT DoCoMo, Inc. | Communication terminal, comunication control method, and communication control program |
KR101499755B1 (ko) | 2009-03-19 | 2015-03-18 | 삼성전자주식회사 | 중간 노드 장치, 중간 노드 장치의 제어 방법, 및 네트워크시스템 |
US8401007B2 (en) * | 2009-04-06 | 2013-03-19 | Avaya Inc. | Network synchronization over IP networks |
US8238377B2 (en) * | 2009-04-06 | 2012-08-07 | Avaya Inc. | Network synchronization over IP networks |
JP6064593B2 (ja) * | 2012-12-27 | 2017-01-25 | 富士通株式会社 | プログラム、情報処理装置、及び通信方法 |
CN105164963B (zh) * | 2013-01-18 | 2019-04-23 | 安华高科技股份有限公司 | 下行链路控制信号的重复传输的方法、设备和无线终端 |
CN103970622B (zh) * | 2013-01-30 | 2017-08-25 | 杭州宏杉科技股份有限公司 | 一种复制过程调整方法及装置 |
JP6060723B2 (ja) * | 2013-02-21 | 2017-01-18 | 富士通株式会社 | 通信システム、送信器、及び通信制御方法 |
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JP2001111618A (ja) * | 1999-10-08 | 2001-04-20 | Nippon Telegr & Teleph Corp <Ntt> | 通信システムとその通信方法、ならびにそのプログラムを記録した媒体 |
JP2002152308A (ja) * | 2000-11-09 | 2002-05-24 | Nec Corp | データ通信システム、その通信方法及びその通信プログラムを記録した記録媒体 |
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JPH11177619A (ja) | 1997-12-15 | 1999-07-02 | Nec Corp | フレームリレー網における端末側輻輳制御方法 |
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SG87029A1 (en) * | 1999-05-08 | 2002-03-19 | Kent Ridge Digital Labs | Dynamically delayed acknowledgement transmission system |
JP2001237882A (ja) * | 2000-02-23 | 2001-08-31 | Nec Corp | パケットデータ転送におけるパケットサイズ制御装置及びその制御方法 |
WO2002019654A2 (en) * | 2000-08-31 | 2002-03-07 | The Regents Of The University Of California | Method for improving tcp performance over wireless links |
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2002
- 2002-11-01 JP JP2002320129A patent/JP3763812B2/ja not_active Expired - Fee Related
-
2003
- 2003-10-31 WO PCT/JP2003/013984 patent/WO2004040861A1/ja active Application Filing
- 2003-10-31 CN CNB2003801010903A patent/CN1282343C/zh not_active Expired - Fee Related
- 2003-10-31 US US10/533,076 patent/US20060080459A1/en not_active Abandoned
- 2003-10-31 AU AU2003280674A patent/AU2003280674A1/en not_active Abandoned
- 2003-10-31 KR KR20057007537A patent/KR100754067B1/ko not_active IP Right Cessation
- 2003-10-31 DE DE60334014T patent/DE60334014D1/de not_active Expired - Lifetime
- 2003-10-31 EP EP20030770074 patent/EP1557985B1/en not_active Expired - Lifetime
- 2003-10-31 AT AT03770074T patent/ATE480073T1/de not_active IP Right Cessation
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8656480B2 (en) * | 2005-03-17 | 2014-02-18 | Samsung Electronics Co., Ltd | Method for negotiating security-related functions of subscriber station in wireless portable internet system |
CN101867512A (zh) * | 2010-04-15 | 2010-10-20 | 华为技术有限公司 | 数据传输控制方法和装置 |
CN101867512B (zh) * | 2010-04-15 | 2012-08-08 | 华为技术有限公司 | 数据传输控制方法和装置 |
Also Published As
Publication number | Publication date |
---|---|
CN1282343C (zh) | 2006-10-25 |
EP1557985A4 (en) | 2010-03-31 |
EP1557985B1 (en) | 2010-09-01 |
JP3763812B2 (ja) | 2006-04-05 |
ATE480073T1 (de) | 2010-09-15 |
DE60334014D1 (de) | 2010-10-14 |
AU2003280674A1 (en) | 2004-05-25 |
EP1557985A1 (en) | 2005-07-27 |
CN1703882A (zh) | 2005-11-30 |
US20060080459A1 (en) | 2006-04-13 |
KR100754067B1 (ko) | 2007-08-31 |
KR20050065645A (ko) | 2005-06-29 |
JP2004158916A (ja) | 2004-06-03 |
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