WO2006069547A1 - Reseau et procede de communication - Google Patents

Reseau et procede de communication Download PDF

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Publication number
WO2006069547A1
WO2006069547A1 PCT/CN2005/002400 CN2005002400W WO2006069547A1 WO 2006069547 A1 WO2006069547 A1 WO 2006069547A1 CN 2005002400 W CN2005002400 W CN 2005002400W WO 2006069547 A1 WO2006069547 A1 WO 2006069547A1
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WO
WIPO (PCT)
Prior art keywords
signaling
network
riag
core network
access
Prior art date
Application number
PCT/CN2005/002400
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English (en)
Chinese (zh)
Inventor
Bing Xu
Yong Xie
Xingang Liang
Original Assignee
Huawei Technologies 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
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2006069547A1 publication Critical patent/WO2006069547A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/02—Inter-networking arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/14—Interfaces between hierarchically different network devices between access point controllers and backbone network device

Definitions

  • the present invention relates to the field of communications, and in particular, to a communication network and a communication method. Background of the invention
  • UMTS is a third-generation mobile communication system using Wideband Code Division Multiple Access (WCDMA) technology. It is also commonly referred to as a WCDMA communication system.
  • the UMTS system uses a similar architecture to the second generation mobile over-the-counter system, including the Radio Access Network (RAN) and the Core Network (CN).
  • the radio access network is used to perform all operations related to no green, and CN handles all voice calls and data connections in the UMTS system, and implements switching and routing functions with the external network.
  • the CN is logically divided into a Circuit Switched Domain (CS) and a Packet Switched Domain (PS).
  • CS Circuit Switched Domain
  • PS Packet Switched Domain
  • the UMTS Territorial Radio Access Network (UTRAN), CN and User Equipment (UE) together form the entire UMTS system. :
  • the UTRAN includes a plurality of Radio Network Subsystems (RNSs), and one RNS is composed of a Radio Network Controller (RNC) and one or more base stations (NodeBs).
  • RNC Radio Network Controller
  • NodeBs base stations
  • the interface between the RNC and the CN is the Iu interface, and the RNC is connected through the Iur !
  • the RNC and the NodeB are connected through the Iub interface.
  • the RNC is used to allocate and control the radio resources of the NodeB connected or related to it; the NodeB performs the conversion of the data stream between the Iub interface and the Uu interface, and also participates in part of the radio resource management.
  • the RNC is used to control the radio resources of the UTRAN, and can implement functions such as radio resource control (RRC) connection establishment and disconnection, handover, i macro diversity, and radio resource management; and the base station mainly performs Uu interface.
  • RRC radio resource control
  • the processing of the physical layer protocol can realize functions such as spread spectrum, modulation, channel coding and despreading, demodulation, channel decoding, and mutual conversion of baseband signals and radio frequency signals.
  • the network architecture described above is supported by the 3rd Generation Partnership (3GPP) Release: 4/5/6 protocol, and the 3GPP radio access network has a relatively close coupling relationship with the 3GPP CN; but with 3GPP The continuous evolution of the network to the Internet Protocol (IP) network, the 3GPP radio access network will gradually loosen the relationship with the 3GPP CN, and finally make the 3GPP radio access network relatively independent of the 3GPP CN.
  • 3GPP 3rd Generation Partnership
  • IP Internet Protocol
  • the CN of the future 3GPP will be able to connect multiple types of radio access networks, and provide services for UEs accessing different types of radio access networks through the connection, but how to provide access to UEs of different types of radio access networks.
  • Service is a difficult problem when designing a future network.
  • WLAN wireless local area network
  • the CN of 3GPP provides services for UEs accessing the WLAN
  • at least the architecture shown in Figure 2 needs to be supported.
  • the architecture shown in Figure 2 includes specially designed functional nodes for supporting WLAN access 3GPP: WLAN access gateway
  • WAG Packet Data Gateway
  • PGW Packet Data Gateway
  • WiMax wireless wide area network
  • the WiMax system is often referred to simply as WiMax. If the CN of the 3GPP is desired to provide services for UEs accessing different radio access networks, it is necessary to separately standardize a set of dedicated network entities and interfaces for each radio access network. The standardization work that is required will inevitably lead to an excessive workload.
  • the main object of the present invention is to provide a communication network that ensures that user equipment can pass through different access networks without performing a large number of repeated standardization tasks.
  • Network using different access technologies to communicate with the core network to avoid excessive workload and reduce communication network operation costs.
  • Another object of the present invention is to provide a communication method for ensuring that a user equipment can normally communicate with a core network through different ANs and different access technologies to avoid excessive work without performing a large number of repeated standardization tasks. And reduce the operating costs of communication networks.
  • the present invention discloses a communication network, including a core network and an access network, the communication network further including a core network and access RAN Integrated Access Gateway (RIAG); the RIAG is provided with a core network and signaling applied by the access network and access technology, and is also provided with a core network and an access network. And signaling correspondence between the same types of signaling applied by the access technology;
  • the RIAG is configured to convert signaling from the core network/access network into signaling that can be identified by the access network/core network according to a signaling correspondence between the set core network and the access network, and send the signal to the access network.
  • Network/core network and according to the signaling correspondence between the set core network and the access technology, the signaling from the core network/UE is converted into signaling that can be identified by the UE/core network and sent Give the UE/core network.
  • the number of the RIAGs is one or more, and each RIAG is connected through an I-RIAG interface.
  • the RIAG is provided with a signaling plane RIAG, and the converting and transmitting operations are implemented by the signaling plane RIAG; the signaling plane RIAG is further used for establishing a service request, a radio resource management, and a signaling connection. /Maintenance/delete, operations such as establishing maintenance/deletion of data bearers.
  • the RIAG is further provided with a user RIAG connected to the signaling plane RIAG for performing operations including packet/frame processing, routing, aggregation, data forwarding, and signaling forwarding. :
  • the access network is a wired access network or a wireless access network.
  • the wireless access network is a WLAN or WiMax system.
  • the RIAG is separately set in the physical entity; or the RIAG is set in an existing physical entity included in the core network or the access network.
  • the invention also discloses a communication method, which is applied to a communication network including a core network and a connection network; a RIAG is connected between the core network and the access network, and a core network, a connection network, and an access are set in the RIAG.
  • the RIAG converts the received signaling from the core network/access network into signaling that can be identified by the access network/core network according to the signaling correspondence between the set core network and the access network, and sends and receives the signaling.
  • the signaling plane IAG is set in the RIAG, and the method for the RIAG to perform the conversion and transmission on the received signaling from the core network/access network is:
  • the signaling plane RIAG in the RIAG converts the received signaling from the core network/access network into the access network/core network according to the set signaling relationship between the core network and the access network.
  • the signaling is sent to the access network/core network.
  • the signaling plane RIAG is set in the RIAG, and the method for the RIAG to perform the conversion and transmission on the received signaling from the core network/UE is:
  • the signaling plane RIAG in the RIAG converts the received signaling from the core network/UE into the signaling that can be identified by the UE/core and according to the signaling correspondence between the set core network and the access technology. Send to the UE/core network.
  • the RIAG is further configured with a user plane RIAG connected to the signaling plane RIAG.
  • the method further includes:
  • the user plane RIAG receives the signaling to be sent to the signaling plane RIAG and sends the received signaling to the signaling plane RIAG.
  • the communication network and the communication method provided by the invention both connect the RIAG between the core network and the access network to ensure that the RIAG can convert the signaling from the core network/access network into the access network/core network.
  • Signaling is sent to the access network/core network, and the signaling from the core network/UE is converted into signaling that can be identified by the UE/core network and sent to the UE/core network;
  • the UE can ensure normal communication with the core network through different access networks and different access technologies, thereby effectively avoiding excessive workload for standardizing work on the network entity and interface, and
  • the communication network operation cost can be significantly reduced, and the investment and operation cost of the communication network can be effectively reduced, and the communication process between the core network, the access network and the UE is obviously simplified.
  • FIG. 1 is a schematic structural diagram of a UTRAN in the prior art
  • FIG. 2 is a schematic structural diagram of a user equipment accessing a 3GPJP network through a WLAN in the prior art
  • 3 is a schematic diagram showing the structure and principle of a communication network according to a preferred embodiment of the present invention
  • FIG. 4 is a schematic diagram of a network structure and principle of WiMax accessing a 3G core network through RIAG. Mode for carrying out the invention
  • the communication network and the communication method provided by the present invention are applied to a communication network including a core network spear access network, and a RIAG is connected between the core network and the access network, and a core network and an access network are disposed in the RIAG.
  • the signaling applied by the access technology is also provided with a signaling correspondence between the core network and the access network and the same type of signaling applied by the access technology; and the RIAG is configured according to the core network and the access network.
  • the signaling correspondence between the core network/access network is converted into signaling that can be identified by the access network/core network and sent to the access network
  • the signaling correspondence between the access technologies converts the signaling from the core network 7 UE into the signaling that can be identified by the UE/core network and sends the signaling to the UE/core network.
  • a new function node is added to the currently used communication network architecture including the CN and the AN: RIAG, and the RIAG is connected between the CN and the AN, and is used to support the UE to perform communication interaction through the AN ⁇ CN, so as to be CN provides services for the UE.
  • the user can also access the RIAG by using an access technology (AT) such as Bluetooth, and the RIAG supports the UE to interact with the CN communication, so that the CN provides the UE with the service.
  • AT access technology
  • the method for the UE to apply the access technology to access the RIAG is the same as the method for the UE to apply the access technology to access the communication device.
  • the AN can be UTRAN, WLAN, WiMAX, etc., and the AN can be either a wired access network or a wireless access network;
  • the access technology applied by the UE can be Bluetooth (Bluetooth) technology, ultra-wideband (Ultre Wide Band) , UWB) technology, Radio Frequency Identity (RFID) technology.
  • Bluetooth Bluetooth
  • Ultre Wide Band ultra-wideband
  • UWB Ultra-wideband
  • RFID Radio Frequency Identity
  • the conversion between the signaling, and the signaling identified by the wireless network accessed by the UE has the same type as the signaling that the CN can identify, that is: the purpose of the signaling is the same; and further, the RIAG can also Performing, according to the signaling correspondence, a conversion between the signaling that can be identified by the CN and the signaling that the UE can identify based on the applied access technology, and the signaling that the UE can identify based on the applied access technology
  • the signaling is of the same type as the CN can recognize, ie: the purpose of the signaling is the same.
  • a message is received from the WiMAX RIAG according to a preset signaling relation for determining the A-B message corresponding to the message is the CN, RIAG the message content included in the message A is read, and in accordance with The message format of the B message is subjected to encapsulation or the like for the read content of the octave to convert the A message into a B message, and then the B message that completes the conversion is sent ⁇ CN.
  • the RIAG when the RIAG receives the C message from the CN for the UE, it is determined according to the preset signaling correspondence that the C message corresponds to the D message that the UE can recognize based on the applied Bluetooth access technology, and the RIAG reads to take the message content C contains the message, and the message format according to t) of the message for the message content C is read encapsulation process and the like, in order to eliminate C: message information is converted into D, then the access technologies of Bluetooth Send the completed D message to UE 0
  • the RIAG can serve as a "only" communication interface between the CN and various ANs and UEs applying access technologies to support the UE to provide multiple UEs or multiple access technologies and communications, and then the CN provides the UE with the UE. service.
  • the UE communicates with the CN through multiple ANs or multiple access technologies, it is no longer necessary to perform a large amount of standardization work in the prior art, but only the RIAG performs the foregoing signaling conversion operation.
  • RIAG can perform the above-mentioned signaling conversion in addition to the above. It can implement functions similar to other gateways currently applied.
  • the active wife in the IAG includes a signaling plane RIAG (S-RIAG) and a user plane RIAG (U-RIAG), wherein the S-RIAG can perform service request admission control, radio resource management, and establishment of a signaling connection. /Maintenance/delete, data bearer setup/maintenance/delete, authentication, encryption, data integrity protection, etc.
  • U-RIAG can perform packet/frame processing, routing, aggregation, digital forwarding, signaling forwarding, etc. operating.
  • S-RIAG communicates with U-RIAG through the IUS interface. ;
  • the IUS interface is a communication interface applied between a user plane communication node and a control plane communication node, and can be obtained by extending a similar type of communication interface currently applied, such as: a mobile switching center server (MSG Server) and a medium.
  • MSG Server mobile switching center server
  • the H.248 protocol interface between the gateway (MGW) ⁇ is extended to obtain the IUS interface.
  • S-RIAG and U-RIAG can be set in the same physical entity, or they can be set in different physical entities separately for later expansion.
  • more than one RIAG can be placed in each of the communication networks, and all RIAGs are connected to eight >1 in the communication network to ensure communication security and stability between the UE and the CN.
  • the normal RIAG continues to serve the UE by the working RIAG.
  • the RIAG serving the UE means that the RIAG supports the UE to communicate with the CN through the AN and the application access technology.
  • each RIAG can communicate through the I-RIAG interface to perform signaling and data interaction, and perform operations such as handover, migration, and data forwarding between different RIAGs.
  • the type of the I-RIAG interface can be various, as long as normal signaling and data interaction between the RIAGs can be supported.
  • the I-RIAG interface can be obtained by extending the communication interface of the current application; when the RIAG is placed in the WCDMA, the Iur interface can be extended to obtain the I-RIAG interface.
  • the sender can send the information 4 to be sent to the RIAG to U-RIAG in RIAG, then U-RIAG judges whether the information is data or signaling according to the received information format. If it is data, U-RIAG forwards the data and other subsequent processing; if it is signaling, U- The IAG forwards the signaling to the S-RIAG.
  • the transmitting end may also directly send the signaling to be sent to the R1AG to the S-RIAG in the RIAG, and directly send the data to be sent to the RIAG to the U-RIAG in the RIAG.
  • the RIAG is connected between the CN and the WiMax, and the existing Iu-PS interface can continue to be used between the ⁇ AG and the CN, and the I-BSS is connected to the i port between the RIAG and the WiMax;
  • each RIAG is connected to each other through an I-RI AG interface.
  • the specific registration process includes the following steps:
  • Step 1 The UE applies the prior art access to WiMax, which is a standard procedure defined by the EEE 802.16 protocol. ;
  • Step 2 The UE sends a connection establishment request message to the S-RIAG in the RIAG via WiMax.
  • the UE may also send the connection establishment request message to the U-RIAG in the RIAG via WiMax, and the U-RIAG sets the connection establishment request. The message is forwarded to S-RIAG. '
  • the S-RIAG determines the space between the self and the WiMak according to the received connection establishment request message; whether the port resource and the transmission resource can meet the requirements of the UE, and if satisfied, the S-RIAG sends a connection establishment confirmation message to the UE through the WiMax.
  • Step 3 After receiving the connection establishment confirmation message from the S-RIAG, the UE sends a registration application message to the S-RIAG through the WiMax to request access to the CN.
  • the S-RIAG parses the content of the message included in the received registration application message, and converts the registration application message into a CN identifiable registration request (Attach Request) according to the preset signaling correspondence and the parsed message content.
  • the message is encapsulated in the CN identifiable : Initial UE Message sent to the CN.
  • Step 4 After receiving the Initial UE Message encapsulated with the Attach Request message, the CN sends an Authentication and Ciphering Request message to the S-RIAG, requesting authentication authentication for the UE.
  • the S-RIAG After receiving the Authentication and Ciphering Request message from the CN, the S-RIAG parses out the content of the message included in the Authentication and Ciphering Request message.
  • the Authentication and Ciphering Request will be based on the preset signaling correspondence and the content of the parsed message.
  • the message is converted into a WiMax identifiable registration authentication message, and the registration authentication message is sent to the UE via WiMax.
  • the UE sends a registration authentication response message carrying the useful registration information to the S-RIAG through the WiMax according to the received registration authentication message.
  • the S-RIAG parses the content of the message included in the registration authentication response message from the UE, and converts the registration authentication response message into the CN-recognizable authentication and the content according to the preset signaling correspondence and the parsed message content.
  • An Authentication and Ciphering Response message is sent and the Authentication and Ciphering Response message is sent to the CN.
  • Step 5 After the CN receives the Authentication and Ciphering Response message,
  • the S-RIAG parses the content of the message included in the received Attach accept message, and converts the Attach accept message to the registration acceptance message identifiable by WiMax according to the preset signaling correspondence and the parsed message content, and then registers the registration message. Accept the message to send the UE through WiMax.
  • Step 6 After receiving the registration accept message, the UE sends a registration confirmation message to the S-RIAG.
  • the S-RIAG parses the content of the message included in the received registration confirmation message, and converts the registration confirmation message into a CN identifiable registration complete (Attach Complete) message according to the preset signaling correspondence and the parsed message content.
  • the Attach complete message is sent to the CN.
  • the UE completes the registration process in the CN, and can perform subsequent service establishment and the like.
  • a UE In WiMax, a UE is often referred to as a subscriber station (SS) or a mobile station (MSS).
  • SS subscriber station
  • MSS mobile station
  • the RIAG can be set separately in the physical entity or in the existing physical entity contained in the CN or AN.
  • RIAG is set separately in the physical entity located in CN or AN, or RIAG is set in physical entities such as MSC and RNC.
  • the communication network and the communication method provided by the present invention can ensure that the user equipment can pass the same access network and apply different access technologies and cores without performing a large number of repeated standardization work.
  • the normal communication of the network effectively avoids the excessive workload for standardizing the network entities and interfaces, and can significantly reduce the operating cost of the communication network, thereby effectively reducing the investment and operating costs of the operator for the communication network.
  • the application to the IAG can relatively reduce the network entities and interfaces existing in the communication network, so that the communication process between the core network, the access network, and the iuE is obviously simplified.

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

Abstract

Réseau de communication et procédé de communication correspondant avec passerelle d'accès intégrée au réseau d'accès radio (RIAG) entre le réseau principal et le réseau d'accès, le but étant de garantir que la passerelle RIAG peut traduire la signalisation émanant du réseau principal/réseau d'accès en une signalisation qui identifiable par lesdits réseaux et transmise à ces derniers, et traduire la signalisation émanant d'un réseau principal/équipement utilisateur en une signalisation identifiable par le réseau principal/équipement utilisateur et transmise à ces derniers. Selon la présente invention, un équipement utilisateur peut communiquer avec le réseau principal via différents réseaux d'accès en utilisant différentes technologies d'accès. La lourde charge de travail imposée par la normalisation selon l'entité du réseau est rendue superflue et le coût d'exploitation forcément réduit. Par voie de conséquence, les dépenses d'investissement en réseau de communication et le coût d'exploitation sont moindres, cependant que la procédure de communication entre réseau principal, réseau d'accès et équipement utilisateur se trouve sensiblement allégée.
PCT/CN2005/002400 2004-12-31 2005-12-30 Reseau et procede de communication WO2006069547A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 200410101091 CN1801965A (zh) 2004-12-31 2004-12-31 一种移动通信网络及方法
CN200410101091.4 2004-12-31

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WO2006069547A1 true WO2006069547A1 (fr) 2006-07-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103281707A (zh) * 2013-06-07 2013-09-04 北京交通大学 面向轨道交通基础设施服役状态检测的接入网构建方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3493474B1 (fr) * 2012-06-29 2020-10-21 Huawei Technologies Co., Ltd. Système de passerelle, dispositif et procédé de communication

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US20030214925A1 (en) * 2002-05-17 2003-11-20 Alcatel Radio access network and network elements for providing mobile communications services
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US20030214925A1 (en) * 2002-05-17 2003-11-20 Alcatel Radio access network and network elements for providing mobile communications services
US20030227940A1 (en) * 2002-06-07 2003-12-11 Evolium S.A.S. Method for connecting a terminal over an access network to the core part of a radio communication network and corresponding gateway

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CN103281707A (zh) * 2013-06-07 2013-09-04 北京交通大学 面向轨道交通基础设施服役状态检测的接入网构建方法
CN103281707B (zh) * 2013-06-07 2015-08-19 北京交通大学 面向轨道交通基础设施服役状态检测的接入网构建方法

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