WO2008069494A1 - Procédé de commande de transmission de paquet en liaison descendante dans un système de communication mobile - Google Patents

Procédé de commande de transmission de paquet en liaison descendante dans un système de communication mobile Download PDF

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Publication number
WO2008069494A1
WO2008069494A1 PCT/KR2007/006106 KR2007006106W WO2008069494A1 WO 2008069494 A1 WO2008069494 A1 WO 2008069494A1 KR 2007006106 W KR2007006106 W KR 2007006106W WO 2008069494 A1 WO2008069494 A1 WO 2008069494A1
Authority
WO
WIPO (PCT)
Prior art keywords
downlink packet
terminal
bearer
packet
mobile communication
Prior art date
Application number
PCT/KR2007/006106
Other languages
English (en)
Inventor
Jae-Wook Shin
Ae-Soon Park
Original Assignee
Electronics And Telecommunications Research Institute
Ktfreetel Co., Ltd.
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
Priority claimed from KR1020070046720A external-priority patent/KR100873484B1/ko
Application filed by Electronics And Telecommunications Research Institute, Ktfreetel Co., Ltd. filed Critical Electronics And Telecommunications Research Institute
Priority to US12/517,758 priority Critical patent/US20100020749A1/en
Publication of WO2008069494A1 publication Critical patent/WO2008069494A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • the present invention relates to a method of downlink packet transmission control in a mobile communication system; and, more particularly, to a method of downlink packet transmission control in a mobile communication system to transfer downlink packet selectively using one of a default bearer and a dedicated bearer according to whether a downlink packet filter corresponding to a downlink packet exists or not.
  • a mobile communication system denotes a mobile communication system including a 3 rd Generation Evolution (3GE) mobile communication system of a 3 rd generation partnership project (3GPP).
  • 3GE 3 rd Generation Evolution
  • 3GPP 3 rd generation partnership project
  • the 3GE mobile communication system employs a default bearer for quickly controlling various packet services and conveniently managing the quality of a service.
  • Upper layer service context information for the default bearer is generated when a terminal is initially registered at a network. If a terminal is already registered at a network, the upper layer service context information for the default bearer is always available to a terminal and a network regardless of whether the signaling connection between the terminal and the network is established or not.
  • Resources for a default bearer are allocated when the signaling connection between a terminal and a network is established. When the signaling connection is released, corresponding resources are released too.
  • An IP signaling packet such as an internet control message protocol (ICMP), an IP application signaling packet such as a session initiation protocol (SIP), or an internet protocol (IP) packet having a 'best-effort' type service quality, such as a E-mail are transmitted through a default bearer.
  • ICMP internet control message protocol
  • SIP session initiation protocol
  • IP internet protocol
  • a terminal can transmit a plurality of packet services at the same time.
  • Each of the packet services is constituted of more than one of packet flows, and each of the packet flows corresponds to one of a dedicated bearer and a default bearer according to the characteristics thereof.
  • a network When a network receives a downlink packet to be transmitted to a terminal in an IDLE state, the network searches a target terminal by performing a paging process and establishes a signaling connection between the target terminal and the network.
  • the 3GE mobile communication system employing the default bearer needs to establish a default bearer as well as establishing the signaling connection between the terminal and the network when paging the terminal.
  • a downlink packet initiating the paging process can be transmitted to a terminal selectively through one of a default bearer and a dedicated bearer. If the downlink packet is transmitted through the dedicated bearer, it is required to additionally perform a process for establishing a corresponding dedicated bearer.
  • An embodiment of the present invention is directed to providing a method of downlink packet transmission control in a mobile communication system in order to effectively transfer a downlink packet by transferring a downlink packet selectively through one of a default bearer and a dedicated bearer according to whether a downlink packet filter corresponding to a downlink packet exists or not.
  • Another embodiment of the present invention is directed to providing a method of downlink packet transmission control in a mobile communication system in order to effectively transfer a downlink packet by establishing a default bearer of a terminal and paging a terminal when a downlink packet is arrived at a network from a terminal, selecting one of a default bearer and a dedicated bearer to transmit a corresponding downlink packet based on a terminal access state, downlink packet filter information, default and dedicated bearer information, controlling the establishing of a dedicated bearer according to the determination result, and transmitting the downlink packet through the selected bearer.
  • a method of downlink packet transmission control in a mobile communication system including the steps of: a) establishing a default bearer when a downlink packet is received; b) determining whether a downlink packet filter corresponding to a downlink packet exists or not; c) transferring the downlink packet through the default bearer if the corresponding downlink packet filter does not exist; and d) transferring the downlink packet through a dedicated bearer if the corresponding downlink packet filter exists.
  • a downlink packet is transmitted by selectively one of a default bearer and a dedicated bearer according to whether a downlink packet filter corresponding to a downlink packet exists or not in the present invention. Therefore, the downlink packet is effectively transferred.
  • Fig. 1 is a diagram illustrating a 3 rd Generation Evolution (3GE) mobile communication system where the present invention is applied.
  • 3GE 3 rd Generation Evolution
  • FIG. 2 is a diagram illustrating a default bearer of a 3GE mobile communication system in accordance with an embodiment of the present invention.
  • FIG. 3 is a flowchart describing a method of downlink packet transmission control in a mobile communication system in accordance with an embodiment of the present invention.
  • FIG. 1 is a diagram illustrating a 3 rd Generation Evolution (3GE) mobile communication system where the present invention is applied.
  • 3GE 3 rd Generation Evolution
  • the 3GE mobile communication whether the present invention is applied includes a terminal or user equipment (UE) 101, a base station or an Evolved NodeB (eNB) 102, and an access gateway (aGW) 103.
  • UE terminal or user equipment
  • eNB Evolved NodeB
  • aGW access gateway
  • the terminal 101 accesses the base station 102 through a wireless interface.
  • the base station 102 accesses the access gateway 103 through a wired interface.
  • the access gateway 103 interoperates with an external packet data network (PDN) through an Internet Protocol (IP) interface.
  • PDN packet data network
  • IP Internet Protocol
  • the terminal 101 performs an IP based packet service with a server in a packet data network 104 or a corresponding node. In order to transmit an IP packet, it is required to establish a bearer among the terminal 101, the base station 102, and the access gateway 103.
  • Fig. 2 is a diagram illustrating a default bearer of a 3GE mobile communication system in accordance with an embodiment of the present invention.
  • the terminal 101 can perform a plurality of IP application services 201 at the same time.
  • Each of the IP application services 201 includes more than one of uplink (UL) service data flows 202 and downlink (DL) service data flows 205.
  • the UL service data flows 202 correspond to corresponding uplink packet filters
  • Each of the uplink packet filters 203 corresponds to a default bearer 208 or a dedicated bearer 209. That is, uplink packets generated at the terminal 101 by an application service is classified into the UL service data flow 202 according to the information of the UL packet filter 203 sustained by the terminal 101. Then, the generated uplink packet is transmitted to the base station 102 through a corresponding bearer.
  • a downlink packet received at the access gateway 103 is classified into a DL service data flow 205 according to the information about the downlink packet filter 206. Then, the classified packet is transferred to the base station 102 through a corresponding bearer.
  • the base station 102 performs a function for corresponding wired/wireless bearers to each other between the terminal 101 and the access gateway 103.
  • the bearer includes a dedicated bearer 209 and a default bearer 208. Packets matched to the uplink/downlink packet filters 203 and 206 are transmitted through the dedicated bearer 209. Packets not matched to the uplink/downlink packet filters 203 and 206 are transmitted through the default bearer 208.
  • a packet transferred through the default bearer 208 is a packet not demanding a strict quality of a service, for example, an IP signaling packet such as an internet control message protocol (ICMP), an IP application signaling packet such as a session initiation protocol (SIP), or an internet protocol (IP) packet having a 'best-effort' type service quality such as a E-mail.
  • IP internet protocol
  • FIG. 3 is a flowchart describing a method of downlink packet transmission control in a mobile communication system in accordance with an embodiment of the present invention.
  • a network that is, an access gateway 103, receives a downlink packet to be transmitted to a terminal 101.
  • the access gateway 103 checks the state of a corresponding terminal
  • the access gateway 103 performs a paging process for paging the terminal 101 and establishes a default bearer among the terminal 101, the base station 102 and the access gateway 103 at step S303.
  • the default bearer establishing process includes a process of establishing a default bearer from at least one of default bearers.
  • step S304 is performed because the terminal 101 can use the pre-established default bearer.
  • the access gateway 103 determines whether a downlink packet filter corresponding to a downlink packet exists or not at step S304.
  • the downlink packet filter corresponding to the downlink packet does not exist at step S304, the downlink packet is transmitted through the default bearer at step S305.
  • the access gateway 103 determines whether a dedicated bearer corresponding to the downlink packet filter exists or not at step S306.
  • step S306 If the dedicated bearer does not exist at the step S306, a corresponding dedicated bearer is established and the downlink packet is transferred through the established dedicated bearer at steps S307 and S308. If the dedicated bearer exists at step S306, the downlink packet is transferred through the dedicated bearer at step S308.
  • a downlink packet can be effectively transferred by establishing a default bearer of a terminal and performing a paging process for paging a terminal when a downlink packet is arrived at a network from a terminal, selecting one of a default bearer and a dedicated bearer to transit a corresponding downlink packet according to a terminal access state, downlink packet filter information, default and dedicated bearer information, controlling the establishing of a dedicated bearer according to the determination result, and transmitting the downlink packet through the selected bearer.
  • the above described method according to the present invention can be embodied as a program and stored on a computer readable recording medium.
  • the computer readable recording medium is any data storage device that can store data which can be thereafter read by the computer system.
  • the computer readable recording medium includes a read-only memory (ROM), a random-access memory (RAM), a CD-ROM, a floppy disk, a hard disk and an optical magnetic disk.

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de commande de transmission de paquet en liaison descendante dans un système de communication mobile. Ce procédé comprend les étapes consistant: a) à établir un support par défaut lorsqu'un paquet en liaison descendante est reçu; b) à déterminer si un filtre de paquet en liaison descendante correspondant à un paquet en liaison descendante existe ou non; c) à transférer le paquet en liaison descendante à travers le support par défaut si le filtre de paquet en liaison descendante correspondant n'existe pas; et d) à transférer le paquet en liaison descendante à travers un support dédié si le filtre de paquet en liaison descendante correspondant existe.
PCT/KR2007/006106 2006-12-04 2007-11-29 Procédé de commande de transmission de paquet en liaison descendante dans un système de communication mobile WO2008069494A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/517,758 US20100020749A1 (en) 2006-12-04 2007-11-29 Method of downlink packet transmission control in mobile communications system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2006-0121217 2006-12-04
KR20060121217 2006-12-04
KR1020070046720A KR100873484B1 (ko) 2006-12-04 2007-05-14 이동통신시스템에서의 하향링크 패킷 전달 제어 방법
KR10-2007-0046720 2007-05-14

Publications (1)

Publication Number Publication Date
WO2008069494A1 true WO2008069494A1 (fr) 2008-06-12

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Country Status (1)

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WO (1) WO2008069494A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010018972A3 (fr) * 2008-08-11 2011-01-20 Electronics And Telecommunications Research Institute Procédé pour traiter un cas exceptionnel d'établissement d'un support par défaut dans un système de communication mobile et dispositif associé

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020114305A1 (en) * 2001-02-09 2002-08-22 Johnson Oyama Signaling quality of service class for use in multimedia communicatations
US20040109455A1 (en) * 2002-12-04 2004-06-10 Nokia Corporation Transmission of data packets by a node
US20040151155A1 (en) * 2001-03-14 2004-08-05 Jarkko Jouppi Method for activating a connection in a communications system, mobile station, network element and packet filter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020114305A1 (en) * 2001-02-09 2002-08-22 Johnson Oyama Signaling quality of service class for use in multimedia communicatations
US20040151155A1 (en) * 2001-03-14 2004-08-05 Jarkko Jouppi Method for activating a connection in a communications system, mobile station, network element and packet filter
US20040109455A1 (en) * 2002-12-04 2004-06-10 Nokia Corporation Transmission of data packets by a node

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010018972A3 (fr) * 2008-08-11 2011-01-20 Electronics And Telecommunications Research Institute Procédé pour traiter un cas exceptionnel d'établissement d'un support par défaut dans un système de communication mobile et dispositif associé
KR101029541B1 (ko) 2008-08-11 2011-04-18 한국전자통신연구원 이동통신 시스템에서 디폴트 베어러 설정의 예외 처리 방법 및 이를 위한 장치
US9237594B2 (en) 2008-08-11 2016-01-12 Electronics And Telecommunications Research Institute Method for processing exceptional case of establishing default bearer in mobile communication system and device therefor
US9565710B2 (en) 2008-08-11 2017-02-07 Electronics And Telecommunications Research Institute Method for processing exceptional case of establishing default bearer in mobile communication system and device therefor
US11330659B2 (en) 2008-08-11 2022-05-10 Electronics And Telecommunications Research Institute Method for processing exceptional case of establishing default bearer in mobile communication system and device therefor
US11871470B2 (en) 2008-08-11 2024-01-09 Electronics And Telecommunications Research Inst. Method for processing exceptional case of establishing default bearer in mobile communication system and device therefor

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