WO2010111873A1 - Hrpd系统中非3gpp2消息传输的方法和系统 - Google Patents

Hrpd系统中非3gpp2消息传输的方法和系统 Download PDF

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Publication number
WO2010111873A1
WO2010111873A1 PCT/CN2009/075917 CN2009075917W WO2010111873A1 WO 2010111873 A1 WO2010111873 A1 WO 2010111873A1 CN 2009075917 W CN2009075917 W CN 2009075917W WO 2010111873 A1 WO2010111873 A1 WO 2010111873A1
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Prior art keywords
message
3gpp2
transmission
hrpd
field
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PCT/CN2009/075917
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English (en)
French (fr)
Inventor
彭志威
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中兴通讯股份有限公司
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Priority to JP2012501117A priority Critical patent/JP5462353B2/ja
Priority to US13/257,980 priority patent/US8724529B2/en
Priority to KR1020117022416A priority patent/KR101197809B1/ko
Publication of WO2010111873A1 publication Critical patent/WO2010111873A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H04W36/38—Reselection control by fixed network equipment
    • H04W36/385—Reselection control by fixed network equipment of the core network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2212/00—Encapsulation of packets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
    • H04W36/1443—Reselecting a network or an air interface over a different radio air interface technology between licensed networks

Definitions

  • the present invention relates to cross-system transmission technology in mobile communication, and more particularly to a non-third-generation partnership project 2 (3GPP2, 3rd Generation Partnership Project 2) message transmission in a high rate packet data (HRPD) system.
  • 3GPP2, 3rd Generation Partnership Project 2 3rd Generation Partnership Project 2
  • LTE Long Term Evolution
  • WiMax WiMax Forum
  • IEEE Institute of Electrical and Electronics Engineers
  • WiMax Worldwide Interoperability for Microwave Access
  • 3GPP2 3rd Generation Partnership Project 2
  • LTE Long Term Evolution
  • 3GPP2 3rd Generation Partnership Project 2
  • GPRS General Packet Radio Service
  • WCDMA Wideband Code Division Multiple Access
  • HRPD High Rate Packet Data
  • 3GPP2 3rd Generation Partnership Project 2
  • 3GPP2 3rd Generation Partnership Project 2
  • the non-3GPP2 system refers to a system developed by a wireless standards organization other than the 3GPP2 standards organization, such as the Global System for Mobile Communications (GSM) system developed by the 3GPP organization, the GPRS system, the WCDMA system, and the WiMax developed by the IEEE and the WMF. System, IEEE-defined wireless local area Network (WLAN, Wireless Local Area Networks) system, etc.
  • GSM Global System for Mobile Communications
  • GPRS Global System for Mobile Communications
  • WCDMA Wireless Code Division Multiple Access
  • WiMax developed by the IEEE and the WMF.
  • the system architecture shown in FIG. 1 is uniformly adopted by the 3GPP and 3GPP2, and the two systems mainly communicate through the S101 interface.
  • the HRPD system needs to be appropriately enhanced, such as: In order to access the evolved packet core network EPC (Evolved Packet Core) in the LTE system through the HRPD system, the original Packet Data Serving Node (PDSN) in the HRPD system. Enhanced to the High Speed Packet Data System Serving Gateway (HSGW, HRPD Serving Gateway) by adding the Mobile Access Gateway (MAG) function
  • EPC evolved Packet Core
  • PDSN Packet Data Serving Node
  • HSGW High Speed Packet Data System Serving Gateway
  • HRPD Serving Gateway Enhanced to the High Speed Packet Data System Serving Gateway (HSGW, HRPD Serving Gateway) by adding the Mobile Access Gateway (MAG) function
  • the dual-mode mobile terminal (UE, User Equipment) can pass the LTE wireless access system (E-UTRAN, Evolved Universal Terrestrial Radio) before the actual handover occurs. Access) Pre-registration to the HRPD system.
  • E-UTRAN Evolved Universal Terrestrial Radio
  • the message request of the HRPD system can be transmitted through the transparent tunnel of the E-UTRAN system.
  • the HRPD message is transmitted in the normal hierarchy; it is required to be forwarded to the airborne wireless interface of the E-UTRAN system before being further transmitted to the HRPD airborne wireless interface.
  • 3GPP2 adds the function of implementing HRPD message forwarding to the connection layer of the HRPD air interface protocol as a new sub-protocol of the connection layer, namely the signaling adaptation protocol (SAP, Signaling Adaptation Protocol). ).
  • SAP Signaling adaptation protocol
  • some high-level sub-protocols of the HRPD air interface protocol have also been modified accordingly.
  • the improved HRPD system is recorded as eHRPD (Evolved HRPD), and the improved HRPD access network (AN, Access Network) is recorded as eAN ( Evolved AN).
  • the HRPD message is parsed by SAP, forwarded to the HRPD processor, or re-encapsulated into messages that need to be forwarded on other interfaces (such as the S101 interface).
  • Figure 2 shows the impact of the HRPD air interface protocol after the SAP is added to the connection layer.
  • the affected sub-association is preceded by the radio access technology (Inter-RAT, Iner-Radio Access). Technology) prefix mark, a total of 4 sub-protocols need to be modified accordingly, including: Initialization State Protocol, Idle State Protocol, Route Update Protocol And the overhead message protocol (Overhead Messages Protocol), the unaffected layer sub-protocols are not shown in Figure 2.
  • the dual-mode UE when performing the optimal handover from the HRPD system to the LTE system, the dual-mode UE needs to pre-register with the LTE system through the HRPD system before initiating the handover. At this time, the E-UTRAN message of the LTE system is also required to be able to Transparent tunneling through the HRPD system. Since the air interface protocol of LTE is designed separately according to the access layer (AS, Access Stratum) and the non-access stratum (NAS, Non Access Stratum), the E-UTRAN message of the LTE system that needs to be tunneled in the HRPD system is mainly non- Access layer signaling (NAS Signaling) message. How to identify, encapsulate, and transparently tunnel these non-3GPP2 messages in the HRPD system, such as LTE NAS Signaling messages or WiMax corresponding messages, has not yet proposed an effective method. Summary of the invention
  • the main object of the present invention is to provide a method and system for non-3GPP2 message transmission in an HRPD system to implement transmission of non-3GPP2 messages in the HRPD system.
  • the present invention provides a method for non-3GPP2 message transmission in an HRPD system, the method comprising:
  • the sending end encapsulates the non-3GPP2 message in the non-3GPP2 transmission message according to the format of the preset non-3GPP2 transmission message, and sends the message to the receiving end through the high rate packet data HRPD air interface; the receiving end transmits the message according to the preset non-3GPP2 message. And decapsulating the non-3GPP2 transport message obtained from the HRPD air interface to obtain the non-3GPP2 message.
  • the format of the non-3GPP2 transmission message includes: a message identification field, a service processing sequence number field, an acknowledgement field, a message type field, a non-3GPP2 message length field, and a non-3GPP2 message field.
  • the method further includes:
  • the non-3GPP2 transmission acknowledgment message is constructed and returned to the transmitting end according to the format of the non-3GPP2 transmission acknowledgment message.
  • the format of the non-3GPP2 transmission acknowledgement message includes: a message identification field, a service processing sequence field, and a reserved field.
  • the method further includes:
  • the transmitting end is an HRPD access network, and the receiving end is a user terminal UE; the HRPD access network sends the encapsulated non-3GPP2 transmission message to the UE through a downlink of the HRPD system.
  • the method further includes:
  • the transmitting end is a UE, and the receiving end is an HRPD access network; the UE sends the encapsulated non-3GPP2 transmission message to the HRPD access network through an uplink of the HRPD system.
  • the method further includes: after the HRPD access network obtains the non-3GPP2 message by decapsulating, the obtained non-3GPP2 message is encapsulated into a message that needs to be forwarded on other interfaces to continue forwarding.
  • the format of the non-3GPP2 transport message and the format of the non-3GPP2 transport acknowledgement message are generated from the added non-3GPP2 message transport application subtype and the non-3GPP2 message transport subprotocol.
  • the present invention also provides a system for non-3GPP2 message transmission in an HRPD system, including: a transmitting end and a receiving end, where
  • the sending end is configured to encapsulate the non-3GPP2 message in the non-3GPP2 transmission message according to the format of the preset non-3GPP2 transmission message, and send the message to the receiving end through the HRPD air interface;
  • the format of the non-3GPP2 transport message is set, and the non-3GPP2 transport message obtained from the HRPD air interface is decapsulated to obtain the non-3GPP2 message.
  • the format of the non-3GPP2 transmission message includes: a message identifier field, a service processing sequence number word Segment, acknowledgment field, message type field, non-3GPP2 message length field, and non-3GPP2 message field.
  • the receiving end is further configured to: when performing decapsulation, and determining, according to whether the acknowledgment field needs to respond to the sending end, constructing a non-3GPP2 transmission acknowledgment message to return to the sending end according to a format of the non-3GPP2 transmission acknowledgment message;
  • the format of the non-3GPP2 transmission acknowledgement message includes: a message identification field, a service processing sequence field, and a reserved field.
  • the format of the non-3GPP2 transport message and the format of the non-3GPP2 transport acknowledgement message are generated from the added non-3GPP2 message transport application subtype and the non-3GPP2 message transport subprotocol.
  • the non-3GPP2 message is encapsulated by the transmitting end according to the format of the preset non-3GPP2 transmission message, and then sent to the receiving end, and the receiving end transmits according to the preset non-3GPP2 message.
  • the format of the message is decapsulated to obtain a non-3GPP2 message.
  • the present invention implements transmission of non-3GPP2 messages in the HRPD system, and the present invention adds a non-3GPP2 message transmission application subtype and a non-3GPP2 message transmission sub-protocol only in the application layer of the HRPD air interface protocol, and utilizes the existing air interface protocol of the HRPD.
  • the signaling application protocol performs the transmission and reception of non-3GPP2 messages, avoiding the underlying changes to the HRPD air interface protocol, and ensuring that the CDMA2000 HRPD system smoothly evolves to LTE.
  • FIG. 1 is a schematic diagram of a framework for implementing interworking between an LTE system and an HRPD system in the prior art
  • FIG. 2 is a schematic diagram of an affected state of an HRPD air interface protocol after adding SAP to the connection layer in the prior art
  • FIG. 3 is a flowchart of a method for non-3GPP2 message transmission in an HRPD system according to the present invention
  • FIG. 4 is a schematic diagram of a new subtype and sub-protocol added to an application layer of an HRPD air interface protocol according to the present invention
  • FIG. 5 is a schematic diagram of a NAS Signaling message in an uplink of an HRPD system according to Embodiment 1 of the present invention. Flow chart of transmission;
  • FIG. 6 is a flowchart of a NAS Signaling message transmitted in a downlink of an HRPD system according to Embodiment 2 of the present invention.
  • FIG. 7 is a flowchart of a UE handover from an HRPD system to an LTE system according to Embodiment 3 of the present invention
  • FIG. 8 is a schematic diagram of a system composition structure of a non-3GPP2 message transmission in an HRPD system according to the present invention.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
  • the method for non-3GPP2 message transmission in the HRPD system provided by the present invention as shown in FIG. 3, mainly includes the following steps:
  • Step 301 The sender encapsulates the non-3GPP2 message in the non-3GPP2 transmission message according to the format of the preset non-3GPP2 transmission message, and sends the message to the receiving end through the HRPD air interface.
  • Step 302 The receiving end decapsulates the non-3GPP2 transmission message obtained from the HRPD air interface according to the format of the preset non-3GPP2 transmission message, to obtain a non-3GPP2 message.
  • the present invention adds a non-3GPP2 message transmission application subtype in the application layer of the HRPD air interface protocol, and the subtype provides a non-3GPP2 message transmission sub-protocol, and its location in the HRPD air interface protocol is as shown in FIG.
  • the non-3GPP2 messages transmitted from the outside can be parsed, identified, encapsulated, and then transmitted to the bottom layer of the HRPD air interface protocol, and transparently tunneled through the HRPD wireless air interface;
  • Non-3GPP2 messages that are transmitted to the application layer under the HRPD system may be decapsulated and transmitted to a non-3GPP2 processor for further processing, or repackaged into messages that need to be forwarded on other interfaces (such as the S101 interface).
  • the non-3GPP2 message transmission sub-protocol implements the loading, identification, and encapsulation of the foregoing non-3GPP2 message by defining a non-3GPP2 Info Transfer message; the signaling application subtype of the application layer through the HRPD air interface protocol Signaling network
  • the Signaling Network Protocol implements the transmission and reception of non-3GPP2 Info Transfer messages, thereby implementing transparent tunnel transmission of non-3GPP2 messages in the HRPD system.
  • the message identifier field is used to identify that the transmitted non-3GPP2 Info Transfer message.
  • the service processing sequence number field is used to identify the number of the non-3GPP2 Info Transfer message transmission, to avoid repeated reception of the message, or for message reception confirmation.
  • the non-3GPP2 Info Transfer message is incremented by 1 for the first transmission.
  • Whether the acknowledgment field is used to notify the receiving end whether the non-3GPP2 Info Transfer message needs to return an acknowledgment, for example: setting to 1 indicates that the receiving end needs to return a non-3GPP2 Info Transfer Ack message, and setting it to 0 indicates that the receiving end is not required.
  • the message type field which is the identifier of the system type, is used to identify whether the message is a message of the LTE system, a message of the WiMax system, or a message of another system.
  • the non-3GPP2 message length field indicates the length of the non-3GPP2 message carried by the non-3GPP2 Info Transfer message.
  • the non-3GPP2 message field indicates a non-3GPP2 message encapsulated by the non-3GPP2 Info Transfer message.
  • the message identifier field is used to identify that the non-3GPP2 Info TransferAck message is transmitted;
  • the service processing sequence number field is used to identify the number of the non-3GPP2 Info TransferAck message transmission, and the value is set to the received non-3GPP2 Info Transfer.
  • the purpose of setting the reserved field is to ensure that the format of the non-3GPP2 Info TransferAck message is an integer multiple of 8 bits.
  • non-3GPP2 message in the HRPD system in combination with the embodiment in which the NAS Signaling message of the LTE system is transmitted in the HRPD system.
  • the non-3GPP2 message in the present invention is not limited to the NAS Signaling message in the embodiment, and includes related messages of the WiMax system and other non-3GPP2 systems, and the type of the message can be extended according to actual needs.
  • a flowchart of a NAS signaling message transmitted in an uplink of an HRPD system according to Embodiment 1 of the present invention that is, a transmitting end is a UE, and a receiving end is an HRPD access network (AN, Access Network), and the implementation is performed.
  • the method of the example mainly includes the following steps:
  • Step 501 The UE is in the HRPD system, for some reason, needs to pre-register or execute the direction.
  • the LTE system needs to exchange signaling with the MME (Mobility Management Entity).
  • MME Mobility Management Entity
  • the LTE processor of the UE generates a NAS Signaling message and transmits it to the non-3GPP2 information transmission protocol processing part of the UE.
  • the non-3GPP2 information transmission protocol processing part of the UE encapsulates the received NAS Signaling message into the non-3GPP2 Info Transfer message, where the information type field corresponds to the LTE system type, and the message identification field corresponds to the non-3GPP2 Info Transfer message, if the receiving end is required Response Acknowledgement, whether the acknowledgment field is set to 1, and then the non-3GPP2 Info Transfer message is carried by the HRPD signaling application protocol message, and is sent to the HRPD AN by using the underlying HRPD channel (such as an uplink dedicated channel).
  • the underlying HRPD channel such as an uplink dedicated channel
  • Step 502 The HRPD AN receives the signaling application protocol message carrying the non-3GPP2 Info Transfer message on the uplink HRPD channel of the UE, and delivers the signaling application protocol processing part of the HRPD AN to the non-3GPP2 Info Transfer message. It is then passed to the non-3GPP2 message transport protocol processing portion of the HRPD AN.
  • the non-3GPP2 message transmission protocol processing part of the HRPD AN learns that the message is an LTE system message according to the information type field of the non-3GPP2 Info Transfer message, and the message carries a NAS Signaling message, thereby extracting the NAS Signaling message; Whether the acknowledgment field of the non-3GPP2 Info Transfer message determines that the UE needs to be replied to return a non-3GPP2 Info TransferAck message to the UE.
  • Step 503 The non-3GPP2 message transmission protocol processing part of the HRPD AN encapsulates the NAS Signaling message into a Direct Transfer message transmitted on the S101 interface, and forwards the message to the MME.
  • the Direct Transfer message also includes an S101 session identifier (S101 Session ID) for identifying the UE-related message, and other messages that need to be added.
  • the flowchart of the NAS signaling message transmitted in the downlink of the HRPD system according to the second embodiment of the present invention is that the sender is the HRPD AN and the receiver is the UE.
  • the method in this embodiment mainly includes the following steps:
  • Step 601 The UE needs to exchange signaling with the MME of the LTE system when the HRPD system needs to pre-register or perform handover to the LTE for some reason.
  • the LTE MME generates a NAS Signaling message, and encapsulates the NAS Signaling message in a Direct Transfer message transmitted on the S101 interface, and sends the message to the HRPD AN.
  • the Direct Transfer message also includes an S101 Session ID for identifying a message associated with the UE.
  • Step 602 The non-3GPP2 message transmission protocol processing part of the HRPD AN parses the NAS Signaling message and encapsulates it into a non-3GPP2 Info Transfer message, where the information class The type field corresponds to the LTE system type, and the message identification field corresponds to the non-3GPP2 Info Transfer message. If the receiving end responds to the receiving acknowledgement, whether the acknowledgement field is set to 1, and then the non-3GPP2 Info Transfer message is passed through the signaling application of the HRPD AN.
  • the protocol message bearer is transmitted to the UE using the underlying HRPD channel (the following dedicated channel).
  • Step 603 The UE receives the bearer with non-3GPP2 on the downlink HRPD channel of the HRPD system.
  • the signaling of the Info Transfer message applies the protocol message and is passed to the signaling application protocol processing part of the UE, parsing out the non-3GPP2 Info Transfer message, and transmitting it to the non-3GPP2 message transmission protocol processing part of the UE.
  • the non-3GPP2 message transmission protocol processing part of the UE learns that the message is an LTE system message according to the message type field of the non-3GPP2 Info Transfer message, and the message 7 carries a NAS Signaling message, thereby extracting the NAS Signaling message, and Forwarding to the LTE processor in the UE for processing; according to whether the acknowledgment field of the non-3GPP2 Info Transfer message, it is determined that the HRPD AN needs to be responded, so that the non-3GPP2 Info TransferAck message is returned to the HRPD AN.
  • the flow chart for switching the HRPD system to the LTE system mainly includes the following steps:
  • Step 701 The UE is currently connected to the HRPD system for data communication, and is in an overlapping area with the LTE E-UTRAN system coverage.
  • Step 702 The UE performs measurement on the E-UTRAN system according to the obtained E-UTRAN system message, determines that the condition for handover to the E-UTRAN system is currently satisfied, and then initiates handover to the E-UTRAN system.
  • Step 703 The UE sends an attach request (Attech Request) to the E-UTRAN system, where the Attech Request message is encapsulated and sent in the non-3GPP2 Info Transfer message, and transmitted to the HRPD AN through the HRPD air interface.
  • the message type field identifier of the non-3GPP2 Info Transfer message is the LTE system type.
  • Step 704 the HRPD AN receives the non-3GPP2 Info Transfer message, and solves the problem from The Attech Request message is sent out, and the Attech Request message is encapsulated in a Direct Transfer message transmitted on the S101 interface and sent to the MME.
  • the Direct Transfer message further includes information such as S101 Session ID, UE capability, and TAI for identifying the UE-related message.
  • Step 705 If the network side of the E-UTRAN system does not have UE context information, the authentication process of the UE needs to be initiated, and the related authentication message passes the non-3GPP2 Info Transfer message of the HRPD air interface and the Direct Transfer of the S101 interface. The message is encapsulated and transmitted. In this process, the MME obtains a packet data network gateway (PDN-GW, Packet Data Network Gateway) address from the core network.
  • PDN-GW Packet Data Network Gateway
  • Step 706 The MME selects a Serving Gateway (S-GW) for the UE, and establishes a default bearer (Default Bear) for the UE between the S-GW and the PDN-GW.
  • S-GW Serving Gateway
  • Default Bear a default bearer
  • Step 707 After establishing a Default Bear for the UE between the S-GW and the PDN-GW, the MME sends an Attech Accept message to the HRPD AN, and the Attech Accept message is sent in a Direct Transfer message encapsulated on the S101 interface.
  • Step 708 The HRPD AN forwards the Attech Accept message to the UE, and the Attech Accept message is sent in a non-3GPP2 Info Tranfer message encapsulated in the HRPD air interface, and the message type field of the non-3GPP2 Info Tranfer message is identified as an LTE system type.
  • Step 709 The UE returns an Attech Complete message to the HRPD AN, and the Attech Complete is sent in a non-3GPP2 Info Tranfer message encapsulated in the HRPD air interface, and the message type field of the non-3GPP2 Info Tranfer message is identified as an LTE system type.
  • Step 710 The HRPD AN parses the Attech Complete message and forwards it to the MME, and the forwarded Attech Complete message is encapsulated in a Direct Transfer message on the S101 interface.
  • Step 711 The UE switches to the E-UTRAN system, and establishes an air interface connection and a related bearer with the E-UTRAN system, and performs communication under the E-UTRAN system.
  • Step 712 Each network element releases all HRPD resources related to the UE.
  • the present invention also provides A system for non-3GPP2 message transmission in an HRPD system, as shown in FIG. 8, the system includes: an interconnected transmitting end 10 and a receiving end 20.
  • the sending end 10 is configured to encapsulate the non-3GPP2 message in the non-3GPP2 transmission message according to the format of the preset non-3GPP2 transmission message, and send the message to the receiving end 20 through the HRPD air interface.
  • the receiving end 20 is configured to decapsulate the non-3GPP2 transport message acquired from the HRPD air interface according to the format of the preset non-3GPP2 transport message, to obtain a non-3GPP2 message.
  • the format of the non-3GPP2 transport message includes: a message identification field, a service processing sequence number field, a acknowledgment field, a message type field, a non-3GPP2 message length field, and a non-3GPP2 message field.
  • the receiving end 20 is further configured to: when decapsulating, if it is determined according to whether the acknowledgment field needs to respond to the sending end, construct a non-3GPP2 transmission acknowledgment message according to the format of the non-3GPP2 transmission acknowledgment message.
  • the format of the non-3GPP2 transmission acknowledgement message includes: a message identifier field, a service processing sequence number field, and a reserved field.
  • the HRPD access network sends the encapsulated non-3GPP2 transmission message to the UE through the downlink of the HRPD system. If the UE is used as the transmitting end and the HRPD AN is used as the receiving end, the UE passes the encapsulated non-3GPP2 transmission message through the HRPD system. The uplink is sent to the HRPD AN.

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Description

HRPD系统中非 3GPP2消息传输的方法和系统 技术领域
本发明涉及移动通信中的跨系统传输技术， 尤其涉及一种高速率分组 数据 （HRPD , High Rate Packet Data ) 系统中非第三代合作伙伴计划 2 ( 3GPP2 , 3rd Generation Partnership Project 2 ) 消息传输的方法和系统。 背景技术
由第三代合作伙伴计划 （3GPP, 3rd Generation Partnership Project )组 织制定的长期演进（ LTE, Long Term Evolution )系统， 以及由 WiMax论坛 ( WMF, WiMax Forum )和电气电子工程师协会（ IEEE, Institute of Electrical and Electronics Engineers )制定的全球敫波互联接入 ( WiMax, Worldwide Interoperability for Microwave Access ) 系统， 作为两种新一代主流宽带无线 通信系统， 已经得到了迅速的发展。 其中研究的一个重要方面， 是如何实 现新一代宽带无线通信系统与现有系统（包括 3GPP2系统）之间的互通， 例如： LTE系统与 3GPP的通用分组无线服务（GPRS , General Packet Radio Service )系统、 宽带码分多址（ WCDMA, Wideband Code Division Multiple Access ) 系统， 第三代合作伙伴计划 2 ( 3GPP2, 3rd Generation Partnership Project 2 )系统的 CDMA2000和高速率分组数据 ( HRPD, High Rate Packet Data )系统等之间的互通， 但同时要求对现有系统的影响最小， 以便于现有 系统的平滑演进或升级。 所谓 3GPP2系统， 即是指由 3GPP2标准组织制定 的 CDMA2000 IX系统和 HRPD系统。而非 3GPP2系统即指由 3GPP2标准 组织以外的无线标准组织制定的系统， 如 3GPP组织制定的全球移动通信 ( GSM, Global System for Mobile Communications ) 系统、 GPRS系统、 WCDMA系统， IEEE和 WMF制定的 WiMax系统， IEEE制定的无线局域 网 （WLAN, Wireless Local Area Networks ) 系统等。
目前， 为实现 LTE系统与 HRPD系统之间的互通， 经 3GPP和 3GPP2 讨论统一采用图 1所示的系统架构， 两系统主要通过 S101接口进行通信。 相应的， HRPD系统需做适当增强， 如： 为了通过 HRPD系统接入 LTE系 统中演进的分组核心网 EPC ( Evolved Packet Core ), HRPD系统中原有的 分组数据业务节点 （ PDSN, Packet Data Serving Node )通过增加移动接入 网关 （MAG, Mobile Access Gateway ) 功能， 增强为高速分组数据系统服 务网关（HSGW, HRPD Serving Gateway )„
另外， 在从 LTE系统向 HRPD系统切换时， 为了实现优化切换， 在实 际切换发生之前， 双模移动终端 （UE, User Equipment )可以通过 LTE的 无线接入系统（ E-UTRAN, Evolved Universal Terrestrial Radio Access ) 向 HRPD系统进行预登记， 此时， HRPD系统的消息要求能通过 E-UTRAN系 统透明的隧道传输。 基于 HRPD空口协议的层次设计特点， HRPD消息先 在正常的层次结构中传输；在进一步传递到 HRPD空中无线接口传输之前， 要求转发到 E-UTRAN系统的空中无线接口传输。 为了避免对 HRPD空口 协议物理层的修改， 3GPP2将实现 HRPD消息转发的功能添加到了 HRPD 空口协议的连接层，作为连接层的一个新的子协议，即信令适配协议（SAP, Signaling Adaptation Protocol )。 为了适应这样的改变， HRPD空口协议的一 些高层子协议也进行了相应修改， 改进后的 HRPD 系统记为 eHRPD ( Evolved HRPD ), 改进后的 HRPD接入网 （AN, Access Network )记为 eAN ( evolved AN )。 反之， 对于通过 LTE 空中无线接口隧道传输过来的 HRPD消息， 通过 SAP将 HRPD消息解析出来， 转发到 HRPD处理器或再 封装成需要在其他接口 （如 S101接口）上继续转发的消息。
图 2所示是在连接层增加了 SAP后， HRPD空口协议的受影响情况， 受影响的子协前加以无线接入技术之间 （Inter-RAT , Iner-Radio Access Technology )前缀标记， 共有 4个子协议需要做相应修改， 包括： 初始状态 十办议 ( Initialization State Protocol ), 空闲^犬态十办议（ Idle State Protocol )、 路 由更新十办议 ( Route Update Protocol )和开销消息十办议 ( Overhead Messages Protocol ), 未受影响的各层子协议图 2中未示出。
另一方面， 当从 HRPD系统向 LTE系统进行优化切换时， 双模的 UE 在发起切换前，也需要通过 HRPD系统向 LTE系统进行预登记，此时， LTE 系统的 E-UTRAN消息也要求能够通过 HRPD系统透明的隧道传输。 由于 LTE的空口协议按接入层（AS, Access Stratum )和非接入层（NAS, Non Access Stratum )进行分离设计， 因此， 需要在 HRPD系统隧道传输的 LTE 系统的 E-UTRAN消息主要为非接入层信令（ NAS Signaling )消息。在 HRPD 系统中如何标识、 封装和透明的隧道传输这些非 3GPP2 消息， 如 LTE的 NAS Signaling消息或 WiMax的相应消息等， 目前还没有提出有效的方法。 发明内容
有鉴于此， 本发明的主要目的在于提供一种 HRPD系统中非 3GPP2消 息传输的方法和系统， 以实现非 3GPP2消息在 HRPD系统中的传输。
为达到上述目的， 本发明的技术方案是这样实现的：
本发明提供了一种 HRPD系统中非 3GPP2消息传输的方法， 该方法包 括：
发送端根据预设的非 3GPP2传输消息的格式，将非 3GPP2消息封装在 非 3GPP2传输消息中， 并通过高速率分组数据 HRPD空口发送给接收端； 所述接收端根据预设的非 3GPP2传输消息的格式， 对从所述 HRPD空 口获取的非 3GPP2传输消息进行解封装， 得到所述非 3GPP2消息。
所述非 3GPP2传输消息的格式包括： 消息标识字段、 业务处理序号字 段、 是否确认字段、 消息类型字段、 非 3GPP2消息长度字段和非 3GPP2消 息字段。 该方法进一步包括：
所述接收端解封装时， 如果根据是否确认字段确定需要向发送端回应， 则根据非 3GPP2传输确认消息的格式，构造非 3GPP2传输确认消息返回给 所述发送端。
所述非 3GPP2传输确认消息的格式包括： 消息标识字段、 业务处理序 号字段和预留字段。
该方法进一步包括：
所述发送端为 HRPD接入网， 所述接收端为用户终端 UE; 所述 HRPD 接入网将封装后的非 3GPP2传输消息通过 HRPD系统的下行链路发送给所 述 UE。
该方法进一步包括：
所述发送端为 UE, 所述接收端为 HRPD接入网； 所述 UE将封装后的 非 3GPP2传输消息通过 HRPD系统的上行链路发送给所述 HRPD接入网。
该方法进一步包括： 所述 HRPD接入网在通过解封装得到非 3GPP2消 息之后， 将得到的非 3GPP2消息封装成需要在其他接口上转发的消息继续 进行转发。
所述非 3GPP2传输消息的格式和非 3GPP2传输确认消息的格式，从增 设的非 3GPP2消息传输应用子类型和非 3GPP2消息传输子协议中产生。
本发明还提供了一种 HRPD系统中非 3GPP2消息传输的系统， 包括： 发送端和接收端， 其中，
所述发送端， 用于根据预设的非 3GPP2传输消息的格式， 将非 3GPP2 消息封装在非 3GPP2传输消息中， 并通过 HRPD空口发送给所述接收端； 所述接收端， 用于根据预设的非 3GPP2传输消息的格式， 对从所述 HRPD空口获取的非 3GPP2传输消息进行解封装，得到所述非 3GPP2消息。
所述非 3GPP2传输消息的格式包括： 消息标识字段、 业务处理序号字 段、 是否确认字段、 消息类型字段、 非 3GPP2消息长度字段和非 3GPP2消 息字段。
所述接收端还用于在进行解封装， 并根据是否确认字段确定需要向发 送端回应时， 根据非 3GPP2传输确认消息的格式， 构造非 3GPP2传输确认 消息返回给所述发送端；
所述非 3GPP2传输确认消息的格式包括： 消息标识字段、 业务处理序 号字段和预留字段。
所述非 3GPP2传输消息的格式和非 3GPP2传输确认消息的格式，从增 设的非 3GPP2消息传输应用子类型和非 3GPP2消息传输子协议中产生。
本发明所提供的 HRPD系统中非 3GPP2消息传输的方法和系统， 由发 送端将非 3GPP2消息按照预设的非 3GPP2传输消息的格式封装后发送给接 收端， 接收端按照预设的非 3GPP2 传输消息的格式进行解封装后得到非 3GPP2消息。 本发明实现了非 3GPP2消息在 HRPD系统中的传输， 且本发 明只在 HRPD空口协议的应用层增加一个非 3GPP2消息传输应用子类型和 非 3GPP2消息传输子协议， 并利用 HRPD现有空口协议的信令应用协议执 行非 3GPP2消息的发送和接收， 避免了对 HRPD空口协议底层的改动， 可 保证 CDMA2000 HRPD系统平滑地向 LTE演进。 附图说明
图 1为现有技术中实现 LTE系统与 HRPD系统之间互通的构架示意图； 图 2为现有技术在连接层增加 SAP后 HRPD空口协议的受影响状况示 意图；
图 3为本发明一种 HRPD系统中非 3GPP2消息传输的方法流程图； 图 4为本发明中 HRPD空口协议的应用层增加了新的子类型和子协议 的示意图；
图 5为本发明实施例一中 NAS Signaling消息在 HRPD系统上行链路中 传输的流程图；
图 6为本发明实施例二中 NAS Signaling消息在 HRPD系统下行链路中 传输的流程图；
图 7为本发明实施例三中 UE从 HRPD系统向 LTE系统切换的流程图； 图 8为本发明一种 HRPD系统中非 3GPP2消息传输的系统组成结构示 意图。 具体实施方式 下面结合附图和具体实施例对本发明的技术方案进一步详细阐述。 本发明提供的一种 HRPD系统中非 3GPP2消息传输的方法， 如图 3所 示， 主要包括以下步骤：
步骤 301 , 发送端根据预设的非 3GPP2传输消息的格式， 将非 3GPP2 消息封装在非 3GPP2传输消息中， 并通过 HRPD空口发送给接收端。
步骤 302, 接收端根据预设的非 3GPP2传输消息的格式， 对从 HRPD 空口获取的非 3GPP2传输消息进行解封装， 得到非 3GPP2消息。
本发明通过在 HRPD空口协议的应用层增设一个非 3GPP2消息传输应 用子类型， 该子类型提供非 3GPP2消息传输子协议， 其在 HRPD空口协议 中所处的位置如图 4所示。 通过该非 3GPP2消息传输子协议， 可以对外部 传输过来的非 3GPP2的消息进行解析、标识、封装，然后依次下传到 HRPD 空口协议底层， 通过 HRPD无线空中接口进行透明的隧道传输； 反之， 也 可以对 HRPD系统底层传送到应用层的非 3GPP2消息， 进行解封装并传输 到非 3GPP2处理器进一步处理，或再封装成需要在其他接口（如 S101接口 ) 上继续转发的消息。
该非 3GPP2消息传输子协议通过定义一个非 3GPP2传输（ non-3GPP2 Info Transfer ) 消息， 实现上述非 3GPP2 消息的 载、 标识和封装； 通过 HRPD空口协议应用层的信令应用（ Signaling Application )子类型的信令网 络协议（ Signaling Network Protocol )实现对 non-3GPP2 Info Transfer消息的 发送和接收， 从而实现非 3GPP2消息在 HRPD系统中透明的隧道传输。
non-3GPP2 Info Transfer消息的格式定义如下表 1所示：
Figure imgf000009_0001
表 1
其中， 消息标识字段， 用于识别所传输的是 non-3GPP2 Info Transfer消 息。业务处理序号字段，用于标识 non-3GPP2 Info Transfer消息传输的编号， 以避免消息重复接收， 或用于消息接收确认， non-3GPP2 Info Transfer消息 每发送一次加 1 , 第一次发送取 1。 是否确认字段， 用于通知接收端 non-3GPP2 Info Transfer消息是否需要返回确认， 例如： 设置为 1表明需要 接收端返回非 3GPP2传输确认（non-3GPP2 Info TransferAck ) 消息， 设置 为 0表明无需接收端的回应；或者设置为 0表明需要接收端返回 non-3GPP2 Info TransferAck消息， 设置为 1表明无需接收端的回应。 消息类型字段， 即为系统类型的标识， 用于识别该消息是 LTE系统的消息，还是 WiMax系 统的消息，或者其他系统的消息。 non-3GPP2消息长度字段，表示 non-3GPP2 Info Transfer消息所承载的 non-3GPP2消息的长度。 non-3GPP2消息字段， 表示 non-3GPP2 Info Transfer消息所封装的 non-3GPP2消息。
接收端返回的 non-3GPP2 Info TransferAck消息的格式定义如下表 2所 示： 字段 长度（比特）
消息标识 8
业务处理序号 7
预留 1
表 2
其中，消息标识字段，用于识别所传输的是 non-3GPP2 Info TransferAck 消息； 业务处理序号字段， 用于标识 non-3GPP2 Info TransferAck消息传输 的编号，其值设置为所接收的 non-3GPP2 Info Transfer消息中的业务处理序 号字段中的值； 预留字段， 其长度为 1比特， 设置为 0。 设置预留字段的目 的是为了保证 non-3GPP2 Info TransferAck消息的格式为 8比特的整数倍。
下面结合 LTE系统的 NAS Signaling消息在 HRPD系统中传输的实施 例， 对上述非 3GPP2消息在 HRPD系统中的传输方法进行详细阐述。 当然 本发明中的非 3GPP2消息并非仅限于该实施例中所举的 NAS Signaling消 息，还包括 WiMax系统以及其他非 3GPP2系统的相关消息，且消息的类型 可以根据实际需要进行扩展。
如图 5所示，为本发明实施例一的 NAS Signaling消息在 HRPD系统上 行链路中传输的流程图， 即发送端为 UE, 接收端为 HRPD接入网 （AN, Access Network ), 该实施例的方法主要包括以下步骤：
步骤 501 , UE在 HRPD系统下， 因某种原因， 如需预登记或者执行向
LTE 系统的切换时， 需要与 LTE 系统的移动管理单元 （MME, Mobility Management Entity )交互信令， UE的 LTE处理器产生 NAS Signaling消息， 传递到 UE的非 3GPP2信息传输协议处理部分。
UE的非 3GPP2信息传输协议处理部分将接收到 NAS Signaling消息封 装到 non-3GPP2 Info Transfer消息中， 其中信息类型字段对应 LTE系统类 型， 消息标识字段对应于 non-3GPP2 Info Transfer消息， 若需接收端回应接 收确认， 是否确认字段设置为 1 , 然后将 non-3GPP2 Info Transfer消息通过 HRPD的信令应用协议消息承载，利用底层 HRPD信道（如上行专用信道）， 发送到 HRPD AN。
步骤 502, HRPD AN在 UE的上行 HRPD信道上接收承载有 non-3GPP2 Info Transfer消息的信令应用协议消息， 并传递到 HRPD AN的信令应用协 议处理部分， 解析出 non-3GPP2 Info Transfer消息， 然后传递到 HRPD AN 的非 3GPP2消息传输协议处理部分。 HRPD AN的非 3GPP2消息传输协议 处理部分根据 non-3GPP2 Info Transfer消息的信息类型字段，获知该消息是 一个 LTE系统消息，且该消息承载的是一个 NAS Signaling消息，从而提取 出 NAS Signaling消息；根据 non-3GPP2 Info Transfer消息的是否确认字段， 判定需要回应 UE, 从而向 UE返回 non-3GPP2 Info TransferAck消息。
步骤 503 , HRPD AN 的非 3GPP2 消息传输协议处理部分将 NAS Signaling消息封装到在 S101接口上传送的直接传输（ Direct Transfer )消息 中， 并转发到 MME。 该 Direct Transfer消息中还包含一个用于识别与 UE 相关的消息的 S101会话标识（S101 Session ID ),以及需要添加的其他消息。
如图 6所示，为本发明实施例二的 NAS Signaling消息在 HRPD系统下 行链路中传输的流程图， 即发送端为 HRPD AN, 接收端为 UE, 该实施例 的方法主要包括以下步骤：
步骤 601 , UE在 HRPD系统下， 因某种原因， 如需预登记或者执行向 LTE的切换时，需要与 LTE系统的 MME交互信令。 LTE的 MME产生 NAS Signaling 消息， 将 NAS Signaling 消息封装在 S101接口上传送的 Direct Transfer消息中，发送到 HRPD AN。 该 Direct Transfer消息中还包含一个用 于识别与 UE相关的消息的 S101 Session ID。
步骤 602, HRPD AN的非 3GPP2消息传输协议处理部分解析出 NAS Signaling消息， 并将其封装到 non-3GPP2 Info Transfer消息中， 其中信息类 型字段对应于 LTE系统类型，消息标识字段对应于 non-3GPP2 Info Transfer 消息，若需接收端回应接收确认，是否确认字段设置为 1 ,然后将 non-3GPP2 Info Transfer消息通过 HRPD AN的信令应用协议消息承载，利用底层 HRPD 信道（如下行专用信道）发送到 UE。
步骤 603 , UE在 HRPD系统的下行 HRPD信道上接收承载有 non-3GPP2
Info Transfer消息的信令应用协议消息， 并传递到 UE的信令应用协议处理 部分，解析出 non-3GPP2 Info Transfer消息，传递到 UE的非 3GPP2消息传 输协议处理部分。 UE的非 3GPP2消息传输协议处理部分根据 non-3GPP2 Info Transfer消息的消息类型字段获知该消息是一个 LTE系统消息，且该消 息 7 载的是一个 NAS Signaling消息， 从而提取出 NAS Signaling消息， 将 其转发到 UE中 LTE处理器进行处理；根据 non-3GPP2 Info Transfer消息的 是否确认字段，判定需要回应 HRPD AN,从而向 HRPD AN返回 non-3GPP2 Info TransferAck消息。
如图 7所示， 为 HRPD系统向 LTE系统切换的流程图， 主要包括以下 步骤：
步骤 701 , UE当前连接在 HRPD系统下，进行数据通信，并处于与 LTE 的 E-UTRAN系统覆盖重叠区域。
步骤 702, UE根据获得的 E-UTRAN系统消息， 对 E-UTRAN系统进 行测量，确定当前满足向 E-UTRAN系统切换的条件，进而发起向 E-UTRAN 系统的切换。
步骤 703 , UE向 E-UTRAN系统发起附着请求（ Attech Request ), Attech Request消息被封装在 non-3GPP2 Info Transfer消息中发送， 并通过 HRPD 空口传输到 HRPD AN。 non-3GPP2 Info Transfer消息的消息类型字段标识 为 LTE系统类型。
步骤 704, HRPD AN接收到 non-3GPP2 Info Transfer消息， 并从中解 析出 Attech Request消息，将 Attech Request消息封装在 S101接口上传送的 Direct Transfer消息中发送给 MME。 其中， Direct Transfer消息中还包含用 于识别与 UE相关的消息的 S101 Session ID, UE能力和 TAI等信息。
步骤 705 ,如果 E-UTRAN系统的网络侧还没有 UE上下文（ UE Context ) 信息， 则需发起对 UE 的认证过程， 相关的认证消息通过 HRPD 空口的 non-3GPP2 Info Transfer消息和 S101接口的 Direct Transfer消息进行封装传 输。在该过程中， MME从核心网获得分组数据网网关（ PDN-GW, Packet Data Network Gateway )地址。
步骤 706, MME为 UE选择服务网关（S-GW, Serving Gateway ), 在 S-GW和 PDN-GW之间为 UE建立缺省承载（ Default Bear )。
步骤 707, 在 S-GW和 PDN-GW之间为 UE建立 Default Bear之后， MME向 HRPD AN发送附着接受 （ Attech Accept ) 消息， 且 Attech Accept 消息被封装在 S101接口上的 Direct Transfer消息中发送。
步骤 708, HRPD AN将 Attech Accept消息转发到 UE,且 Attech Accept 消息被封装在 HRPD空口的 non-3GPP2 Info Tranfer消息中发送， non-3GPP2 Info Tranfer消息的消息类型字段标识为 LTE系统类型。
步骤 709, UE向 HRPD AN返回附着完成（ Attech Complete ) 消息， 且 Attech Complete被封装在 HRPD空口的 non-3GPP2 Info Tranfer消息中发 送， non-3GPP2 Info Tranfer消息的消息类型字段标识为 LTE系统类型。
步骤 710、 HRPD AN解析出 Attech Complete消息， 并转发到 MME, 转发的 Attech Complete消息被封装在 S101接口上的 Direct Transfer消息中。
步骤 711 , UE切换到 E-UTRAN系统， 并与 E-UTRAN系统建立空口 连接和相关承载， 在 E-UTRAN系统下进行通信。
步骤 712 , 各网元释放与 UE有关的所有 HRPD资源。
为实现上述 HRPD系统中非 3GPP2消息传输的方法， 本发明还提供了 一种 HRPD系统中非 3GPP2消息传输的系统， 如图 8所示， 该系统包括： 互连的发送端 10和接收端 20。其中，发送端 10,用于根据预设的非 3GPP2 传输消息的格式， 将非 3GPP2 消息封装在非 3GPP2传输消息中， 并通过 HRPD空口发送给接收端 20。接收端 20, 用于根据预设的非 3GPP2传输消 息的格式， 对从 HRPD空口获取的非 3GPP2传输消息进行解封装， 得到非 3GPP2消息。
非 3GPP2传输消息的格式， 如上述表 1所示， 包括： 消息标识字段、 业务处理序号字段、 是否确认字段、 消息类型字段、 非 3GPP2消息长度字 段和非 3GPP2消息字段。
作为本发明的一种较佳实施例， 接收端 20还用于在解封装时， 如果根 据是否确认字段确定需要向发送端回应时， 根据非 3GPP2传输确认消息的 格式， 构造非 3GPP2传输确认消息返回给发送端 10。 相应的， 非 3GPP2 传输确认消息的格式， 如上述表 2所示， 包括： 消息标识字段、 业务处理 序号字段和预留字段。
需要指出的是， 如果将 HRPD AN作为发送端， 将 UE作为接收端， 则
HRPD接入网将封装后的非 3GPP2传输消息通过 HRPD系统的下行链路发 送给 UE; 如果将 UE作为发送端， 将 HRPD AN作为接收端， 则 UE将封 装后的非 3GPP2传输消息通过 HRPD系统的上行链路发送给 HRPD AN。
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保 护范围。

Claims

权利要求书
1、 一种高速率分组数据 HRPD系统中非 3GPP2消息传输的方法， 其 特征在于， 该方法包括：
发送端根据预设的非 3GPP2传输消息的格式，将非 3GPP2消息封装在 非 3GPP2传输消息中， 并通过 HRPD空口发送给接收端；
所述接收端根据预设的非 3GPP2传输消息的格式， 对从所述 HRPD空 口获取的非 3GPP2传输消息进行解封装， 得到所述非 3GPP2消息。
2、 根据权利要求 1所述 HRPD系统中非 3GPP2消息传输的方法， 其 特征在于， 所述非 3GPP2传输消息的格式包括： 消息标识字段、 业务处理 序号字段、 是否确认字段、 消息类型字段、 非 3GPP2 消息长度字段和非 3GPP2消息字段。
3、 根据权利要求 1所述 HRPD系统中非 3GPP2消息传输的方法， 其 特征在于， 该方法进一步包括：
所述接收端解封装时， 如果根据是否确认字段确定需要向发送端回应， 则根据非 3GPP2传输确认消息的格式，构造非 3GPP2传输确认消息返回给 所述发送端。
4、 根据权利要求 3所述 HRPD系统中非 3GPP2消息传输的方法， 其 特征在于， 所述非 3GPP2传输确认消息的格式包括： 消息标识字段、 业务 处理序号字段和预留字段。
5、 根据权利要求 1所述 HRPD系统中非 3GPP2消息传输的方法， 其 特征在于， 该方法进一步包括：
所述发送端为 HRPD接入网， 所述接收端为用户终端 UE; 所述 HRPD 接入网将封装后的非 3GPP2传输消息通过 HRPD系统的下行链路发送给所 述 UE。
6、 根据权利要求 1所述 HRPD系统中非 3GPP2消息传输的方法， 其 特征在于， 该方法进一步包括：
所述发送端为 UE, 所述接收端为 HRPD接入网； 所述 UE将封装后的 非 3GPP2传输消息通过 HRPD系统的上行链路发送给所述 HRPD接入网。
7、 根据权利要求 6所述 HRPD系统中非 3GPP2消息传输的方法， 其 特征在于， 该方法进一步包括： 所述 HRPD接入网在通过解封装得到非
3GPP2消息之后， 将得到的非 3GPP2消息封装成需要在其他接口上转发的 消息继续进行转发。
8、 根据权利要求 1至 7任一项所述 HRPD系统中非 3GPP2消息传输 的方法， 其特征在于， 所述非 3GPP2传输消息的格式和非 3GPP2传输确认 消息的格式，从增设的非 3GPP2消息传输应用子类型和非 3GPP2消息传输 子协议中产生。
9、 一种 HRPD系统中非 3GPP2消息传输的系统， 其特征在于， 包括： 发送端和接收端， 其中，
所述发送端， 用于根据预设的非 3GPP2传输消息的格式， 将非 3GPP2 消息封装在非 3GPP2传输消息中， 并通过 HRPD空口发送给所述接收端； 所述接收端， 用于根据预设的非 3GPP2传输消息的格式， 对从所述 HRPD空口获取的非 3GPP2传输消息进行解封装，得到所述非 3GPP2消息。
10、 根据权利要求 9所述 HRPD系统中非 3GPP2消息传输的系统， 其 特征在于， 所述非 3GPP2传输消息的格式包括： 消息标识字段、 业务处理 序号字段、 是否确认字段、 消息类型字段、 非 3GPP2 消息长度字段和非 3GPP2消息字段。
11、 根据权利要求 9所述 HRPD系统中非 3GPP2消息传输的系统， 其 特征在于， 所述接收端还用于在进行解封装， 并根据是否确认字段确定需 要向发送端回应时， 根据非 3GPP2传输确认消息的格式， 构造非 3GPP2传 输确认消息返回给所述发送端； 所述非 3GPP2传输确认消息的格式包括： 消息标识字段、 业务处理序 号字段和预留字段。
12、 根据权利要求 9至 11中任一项所述 HRPD系统中非 3GPP2消息 传输的系统， 其特征在于， 所述非 3GPP2传输消息的格式和非 3GPP2传输 确认消息的格式，从增设的非 3GPP2消息传输应用子类型和非 3GPP2消息 传输子协议中产生。
PCT/CN2009/075917 2009-04-01 2009-12-23 Hrpd系统中非3gpp2消息传输的方法和系统 WO2010111873A1 (zh)

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