TWI475861B - 網際協定分割之方法及相關無線網路系統 - Google Patents

網際協定分割之方法及相關無線網路系統 Download PDF

Info

Publication number
TWI475861B
TWI475861B TW100145249A TW100145249A TWI475861B TW I475861 B TWI475861 B TW I475861B TW 100145249 A TW100145249 A TW 100145249A TW 100145249 A TW100145249 A TW 100145249A TW I475861 B TWI475861 B TW I475861B
Authority
TW
Taiwan
Prior art keywords
wireless network
network system
sub
data
data packets
Prior art date
Application number
TW100145249A
Other languages
English (en)
Other versions
TW201325164A (zh
Inventor
Tsung Yo Cheng
Original Assignee
Acer Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Acer Inc filed Critical Acer Inc
Priority to TW100145249A priority Critical patent/TWI475861B/zh
Priority to EP12153253.5A priority patent/EP2603032A1/en
Priority to US13/365,231 priority patent/US20130148672A1/en
Publication of TW201325164A publication Critical patent/TW201325164A/zh
Application granted granted Critical
Publication of TWI475861B publication Critical patent/TWI475861B/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/06Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H04W28/065Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H04L69/166IP fragmentation; TCP segmentation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/324Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/325Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the network layer [OSI layer 3], e.g. X.25
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/36Flow control; Congestion control by determining packet size, e.g. maximum transfer unit [MTU]
    • H04L47/365Dynamic adaptation of the packet size

Description

網際協定分割之方法及相關無線網路系統
本發明相關於一種網際協定分割方法及相關無線網路系統,尤指一種可提升資料傳輸效率之網際協定分割方法及相關無線網路系統。
隨著科技發展,網路應用也越來越普及,使用者可隨時利用桌上型電腦、筆記型電腦、個人數位助理(personal digital assistant,PDA)或智慧型手機等電子裝置連結至網際網路。在無線網路系統中,發送端和接收端之間可採用不同通訊協定來進行資料傳輸,而為了確保資料傳輸正確,每次傳送的最大資料封包其大小不能超過通訊協定之最大傳輸單位(maximum transmission unit,MTU)。
第1圖為先前技術中一無線網路系統100之功能方塊圖。第2圖為先前技術之無線網路系統100採用一特定通訊協定來進行資料傳輸時之示意圖。無線網路系統100之發送端包含一切割單元10,無線網路系統100之接收端包含一重組單元20,而PK1~PH3代表不同大小的資料封包。假設資料封包PK1的大小等於特定通訊協定的最大傳輸單位MTU,先前技術可將資料封包PK1直接從發送端傳送至接收端,且能達到最大值100%的傳輸單位使用率;假設資料封包PK2的大小超過特定通訊協定的最大傳輸單位MTU,先前技術之切割單元10需先對資料封包PK2進行網際網路協定切割(IP fragmentation),進而將資料封包PK2切割為兩個較小子資料封包PK21’和PK22’後再傳送至接收端,亦即資料封包PK2需分兩次來傳送,且在傳送封包PK22’時可能無法達到最大值的傳輸單位使用率;假設封包PK3的大小不超過特定通訊協定的最大傳輸單位MTU,先前技術可將資料封包PK3直接從發送端傳送至接收端,但可能無法達到最大值的傳輸單位使用率。
在先前技術中,發送端之切割單元10若進行太多次網際網路協定切割,接收端之重組單元20需耗費更多資源來重組子資料封包。同時,當資料封包大小不等於特定通訊協定的最大傳輸單位時,先前技術無法提供100%的最大傳輸單位使用率,因此會浪費網路資源。
本發明提供一種在一無線網路系統中進行網際協定分割之方法,其包含在該無線網路系統之一發送端將複數個資料封包合併為一資料封包串;依據該無線網路系統所採用之一通訊協定的一最大傳輸單位來將該資料封包串切割為複數個子資料封包;以及該發送端將該複數個子資料封包傳送至該無線網路系統之一接收端。
本發明另提供一種可進行網際協定分割之無線網路系統,其包含一發送端和一接收端。該發送端包含一合併單元,用來將複數個資料封包合併為一資料封包串;以及一切割單元,用來依據該無線網路系統所採用之一通訊協定的一最大傳輸單位來將該資料封包串切割為複數個子資料封包。該接收端包含一重組單元,用來重組該發送端傳來之該複數個子資料封包。
第3圖為本發明中一無線網路系統200之功能方塊圖。第4圖為本發明無線網路系統200採用一特定通訊協定來進行資料傳輸時之示意圖。無線網路系統200可採用多層級開放系統互連(open system interconnection,OSI)的網路架構,從最底層Layer 1至最高層Layer 7依序為實體層(physical layer)、資料聯接層(data link layer)、網路層(network layer)、傳送層(transport Layer)、會談層(session layer)、展示層(presentation layer)和應用層(application layer)。無線網路系統200包含一發送端和一接收端,發送端和接收端可分別為一使用者裝置(user equipment,UE)或一基地台(base station,BS)的不同層級,或是分別為一使用者裝置的一特定層級和一基地台的一特定層級,彼此之間採用特定通訊協定來進行資料傳輸。
在本發明之無線網路系統200中,發送端和接收端可採用乙太網路(Ethernet)協定、令牌環(Token-Ring)協定、光纖分散式數據介面(Fiber Distributed Data Interface,FDDI)協定、傳輸控制通訊協定(Transmission Control Protocol,TCP),或使用者資料流通訊協定(User Datagram Protocol,UDP)等。
在本發明中,無線網路系統200之發送端包含一切割單元10和一合併單元30,無線網路系統200之接收端包含一重組單元20。PK1~PHn代表不同大小的資料封包,可為應用程式封包、協定封包或服務品質(QoS)封包。
如第4圖所示,無論資料封包PK1~PKn和特定通訊協定的最大傳輸單位MTU之間的相對大小關係,本發明之合併單元30會在發送端將資料封包PK1~PKn合併為一資料封包串PK(如箭頭S1所示),再由切割單元10對資料封包串PK進行網際網路協定切割以提供複數個子資料封包PK1’~PKm’(如箭頭S2所示)。在傳送至接收端(如箭頭S3所示)後,可由重組單元20進行資料重組。
本發明可提高最大傳輸單位使用率。舉例來說,若資料封包串PK的大小為最大傳輸單位MTU之整數倍,則子資料封包PK1’~PKm’的大小皆等於最大傳輸單位MTU,因此每一子資料封包都能以100%的最大傳輸單位使用率來傳送;若資料封包串PK的大小不是最大傳輸單位MTU之整數倍,則子資料封包PK1’~PKm’中僅有子資料封包PKm’的大小會小於最大傳輸單位MTU,因此除了子資料封包PKm’外每一子資料封包都能以100%的最大傳輸單位使用率來傳送,整體最大傳輸單位使用率亦會接近100%。
綜上所述,本發明可避免在進行網際協定分割時降低整體最大傳輸單位使用率,使得無線網路系統能以較佳效率來傳輸資料封包。
以上所述僅為本發明之較佳實施例,凡依本發明申請專利範圍所做之均等變化與修飾,皆應屬本發明之涵蓋範圍。
100、300...無線網路系統
10...切割單元
20...重組單元
30...合併單元
第1圖為先前技術中一無線網路系統之功能方塊圖。
第2圖為先前技術之無線網路系統採用一特定通訊協定來進行資料傳輸時之示意圖。
第3圖為本發明中一無線網路系統之功能方塊圖。
第4圖為本發明無線網路系統採用一特定通訊協定來進行資料傳輸時之示意圖。
10...切割單元
20...重組單元
30...合併單元
300...無線網路系統

Claims (5)

  1. 一種在一無線網路系統中進行網際協定分割(IP fragmentation)之方法,其包含:在該無線網路系統之一發送端將複數個尚未切割之資料封包合併為一資料封包串,其中該資料封包串之大小超過該無線網路系統所採用一通訊協定之一最大傳輸單位(maximum transmission unit,MTU);依據該最大傳輸單位來將該資料封包串切割為複數個子資料封包;以及該發送端將該複數個子資料封包傳送至該無線網路系統之一接收端。
  2. 如請求項1所述之方法,其另包含:在該接收端重組該複數個子資料封包。
  3. 如請求項1所述之方法,其中每一子資料封包之大小不大於該最大傳輸單位。
  4. 如請求項1所述之方法,其中每一子資料封包之大小相等。
  5. 一種可進行網際協定分割之無線網路系統,其包含:一發送端,其包含: 一合併單元,用來將複數個尚未切割之資料封包合併為一資料封包串,其中該資料封包串之大小超過該無線網路系統所採用一通訊協定之一最大傳輸單位;以及一切割單元,用來依據該最大傳輸單位來將該資料封包串切割為複數個子資料封包;以及一接收端,其包含:一重組單元,用來重組該發送端傳來之該複數個子資料封包。
TW100145249A 2011-12-08 2011-12-08 網際協定分割之方法及相關無線網路系統 TWI475861B (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
TW100145249A TWI475861B (zh) 2011-12-08 2011-12-08 網際協定分割之方法及相關無線網路系統
EP12153253.5A EP2603032A1 (en) 2011-12-08 2012-01-31 Method of performing Internet Protocol fragmentation and related wireless network system
US13/365,231 US20130148672A1 (en) 2011-12-08 2012-02-02 Method of performing ip fragmentation and related wireless network system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW100145249A TWI475861B (zh) 2011-12-08 2011-12-08 網際協定分割之方法及相關無線網路系統

Publications (2)

Publication Number Publication Date
TW201325164A TW201325164A (zh) 2013-06-16
TWI475861B true TWI475861B (zh) 2015-03-01

Family

ID=45560733

Family Applications (1)

Application Number Title Priority Date Filing Date
TW100145249A TWI475861B (zh) 2011-12-08 2011-12-08 網際協定分割之方法及相關無線網路系統

Country Status (3)

Country Link
US (1) US20130148672A1 (zh)
EP (1) EP2603032A1 (zh)
TW (1) TWI475861B (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015148844A1 (en) * 2014-03-26 2015-10-01 Nant Holdings Ip, Llc Protocols for interacting with content via multiple devices, systems and methods
EP3574676A4 (en) * 2017-01-24 2020-06-17 Nokia Technologies Oy DEMAND-CONTROLLED SEQUENCE NUMBERING FOR SEGMENTATION

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070171828A1 (en) * 2006-01-23 2007-07-26 Mitesh Dalal Method of determining a maximum transmission unit value of a network path using transport layer feedback
US20090116490A1 (en) * 2005-09-20 2009-05-07 Matsushita Electric Industrial Co., Ltd Method and apparatus for packet segmentation and concatenation signaling in a communication system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5987034A (en) * 1996-08-30 1999-11-16 Cisco Technology, Inc. ATM cells within frame relay technology
EP1175063A3 (en) * 2000-07-20 2003-08-27 Nortel Networks Limited Network layer protocol aware link layer
US7336954B2 (en) * 2001-07-05 2008-02-26 Qualcomm Incorporated Method and apparatus for soft handoff between base stations using different frame formats
WO2005053170A2 (en) * 2003-11-24 2005-06-09 Interdigital Technology Corporation Method and apparatus for compiling a protocol data unit
US7609702B2 (en) * 2005-01-18 2009-10-27 Nokia Corporation Interworking between cell and packet based networks
US20070211682A1 (en) * 2006-03-09 2007-09-13 Nec Laboratories America, Inc. On Packet Aggregation and Header Compression Mechanisms for Improving VoIP Quality in Mesh Networks
WO2008080215A1 (en) * 2006-12-28 2008-07-10 Research In Motion Limited Methods and apparatus for increasing data throughput by grouping data packets into maximum transmissible units
KR20100032111A (ko) * 2008-09-17 2010-03-25 삼성전자주식회사 네트워크 프로세서를 이용한 라우팅 시스템에서 ip 패킷의 플레그먼테이션 처리 장치 및 방법
US7936757B2 (en) * 2009-02-27 2011-05-03 O2Micro International Limited Packet fragment reassembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090116490A1 (en) * 2005-09-20 2009-05-07 Matsushita Electric Industrial Co., Ltd Method and apparatus for packet segmentation and concatenation signaling in a communication system
US20070171828A1 (en) * 2006-01-23 2007-07-26 Mitesh Dalal Method of determining a maximum transmission unit value of a network path using transport layer feedback

Also Published As

Publication number Publication date
EP2603032A1 (en) 2013-06-12
US20130148672A1 (en) 2013-06-13
TW201325164A (zh) 2013-06-16

Similar Documents

Publication Publication Date Title
Xu et al. CMT-NC: improving the concurrent multipath transfer performance using network coding in wireless networks
TWI531275B (zh) 在無線網路系統內使用者裝置和基地台之間進行資料傳輸之方法
TR201809100T4 (tr) PDCP durum raporunu iletmeye yönelik yöntem.
Madhuri et al. Performance comparison of TCP, UDP and SCTP in a wired network
Kolap et al. Frame aggregation mechanism for high-throughput 802.11 n wlans
Dreibholz et al. Simulation and experimental evaluation of multipath congestion control strategies
MX2010012889A (es) Metodo para proporcionar transicion ininterrumpida entre redes siguiendo diferentes protocolos.
CN107209713B (zh) 按需文件修复的方法和系统
TW201328387A (zh) 網際協定分割之方法及相關無線網路系統
TWI475861B (zh) 網際協定分割之方法及相關無線網路系統
Saif et al. An optimized A-MSDU frame aggregation with subframe retransmission in IEEE 802.11 n wireless networks
KR101571728B1 (ko) 랜덤선형부호화를 사용한 데이터 송수신 방법
WO2020147091A1 (zh) 无线通信的方法和设备
Wang et al. The effect of “window size” on throughput performance of DTN in lossy cislunar communications
US20090109951A1 (en) Method and Apparatus for Counting Transmission Times of a PDU
Ishak et al. Enhancement and analysis of TFRC performance for real-time data application: a survey
Eklund et al. Efficient scheduling to reduce latency for signaling traffic using CMT-SCTP
WO2017177438A1 (zh) 一种控制信息的传输方法及装置
CN104753803A (zh) 一种数据传输方法、装置、设备及系统
US20230413108A1 (en) Pdu rate reduction in mobile communications
CN108055360A (zh) 网络数据发送方法、系统、发送设备及存储介质
Mowafi et al. Opportunistic Network Coding for Real-Time Transmission over Wireless Networks.
Rajput et al. Comparing stream control and datagram congestion control with traditional transmission control protocol
Rahman et al. BLEnD: improving NDN performance over wireless links using interest bundling
CN103179612A (zh) 网际协议分片的方法及相关无线网络系统