WO2011020435A1 - M2m应用服务器下发数据包的方法及系统 - Google Patents

M2m应用服务器下发数据包的方法及系统 Download PDF

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Publication number
WO2011020435A1
WO2011020435A1 PCT/CN2010/076125 CN2010076125W WO2011020435A1 WO 2011020435 A1 WO2011020435 A1 WO 2011020435A1 CN 2010076125 W CN2010076125 W CN 2010076125W WO 2011020435 A1 WO2011020435 A1 WO 2011020435A1
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Prior art keywords
group
identifier
data packet
ipv6 address
application terminal
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PCT/CN2010/076125
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English (en)
French (fr)
Inventor
周汉
吴问付
陈中平
孙晓姬
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华为技术有限公司
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Publication of WO2011020435A1 publication Critical patent/WO2011020435A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • H04L61/50Address allocation
    • H04L61/5069Address allocation for group communication, multicast communication or broadcast communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/12Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H04L67/125Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/16Arrangements for providing special services to substations
    • H04L12/18Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/189Arrangements for providing special services to substations for broadcast or conference, e.g. multicast in combination with wireless systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00Indexing scheme associated with group H04L61/00
    • H04L2101/60Types of network addresses
    • H04L2101/618Details of network addresses
    • H04L2101/659Internet protocol version 6 [IPv6] addresses
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00Indexing scheme associated with group H04L61/00
    • H04L2101/60Types of network addresses
    • H04L2101/668Internet protocol [IP] address subnets

Definitions

  • the present invention relates to communication technology, in particular to a method and system for sending data packets by an M2M application server, and also to an M2M application server and a GGSN.
  • Machine to Machine (M2M) applications refer to network communications between one or more network elements without human involvement, such as traffic control and management, factory monitoring, remote meter reading and other applications .
  • M2M application a plurality of M2M application terminals with the same M2M application (the English corresponding to the M2M application terminal may be M2M Equipment, M2M Device, or Machine Type Communication Device, etc.) form a whole, referred to as a group for short.
  • Network operators or industry users can manage and control the group as a whole.
  • the remote meter reading application in the power industry can group all the meters in a city into a group, and network operators and power industry users can perform mobility management optimization or access management on the group as a whole.
  • H2H Human to Human, H2H for short
  • UE User Equipment
  • GGSN Gateway GPRS Support Node
  • the GGSN needs to query its own stored static address configuration information according to the destination address (that is, the address of the UE) of the data packet (Data Packet). If the UE’s address is queried in the configuration information, the GGSN will obtain the UE’s International Mobile Identity (Internat iona l Mob i le Subscr ibers) according to the queried static address mapping.
  • UE User Equipment
  • GGSN Gateway GPRS Support Node
  • the GGSN queries the Home Location Register (Home Location Register, HLR for short) according to the obtained IMSI information, and obtains the information of the Serving GPRS Support Node (Serving GPRS Support Node, referred to as SGSN) attached to the UE, Subsequent GGSN will initiate an activation process initiated by the network side to establish a context for the UE, and deliver a packet data network (Packet Data Network, PDN for short) data packet.
  • IMSI Home Location Register
  • HLR Home Location Register
  • SGSN Serving GPRS Support Node
  • PDN Packet Data Network
  • M2M applications if operators need to use Multimedia Broadcast Multicast Service (MBMS) or Cell Broadcast Center (CBC) for M2M application terminals to multicast and to a certain M2M application terminal Sending data packets, due to the large number of M2M application terminals, according to the H2H processing mechanism, the GGSN needs to configure the relationship between the identity of the M2M application terminal and the IP address of the M2M application terminal for each M2M application terminal, which consumes a lot of IP address resources .
  • MBMS Multimedia Broadcast Multicast Service
  • CBC Cell Broadcast Center
  • the embodiments of the present invention provide a method and system for an M2M application server to deliver data packets, and provide an M2M application server and a GGSN, which can save the IP allocated to the M2M application terminal in the M2M application address.
  • the embodiment of the present invention provides a method for an M2M application server to deliver a data packet, including: an M2M application server obtains a group identifier of a target group;
  • the M2M application server obtains the IPv6 address prefix corresponding to the group identifier of the destination group according to the correspondence between the IPv6 address prefix and the group identifier;
  • the M2M application server sends a data packet to the GGSN serving the destination group according to the IPv6 address prefix, and the data packet carries the IPv6 address prefix.
  • the embodiment of the present invention also provides a method for an M2M application server to deliver a data packet, including: the M2M application server obtains the group identifier of the target group;
  • the M2M application server sends a data packet to the GGSN serving the destination group according to the IPv4 address, and the data packet carries the IPv4 address.
  • the embodiment of the present invention also provides an M2M application server, including:
  • the first obtaining module is used to obtain the group identification of the target group
  • the second acquiring module is connected to the first acquiring module and is configured to acquire the IPv6 address prefix corresponding to the group identifier of the destination group acquired by the first acquiring module according to the correspondence between the IPv6 address prefix and the group identifier; Or obtain the IPv4 address corresponding to the group identifier of the destination group acquired by the first acquiring module according to the correspondence between the IPv4 address and the group identifier;
  • the first sending module is connected to the second acquiring module, and is configured to send a data packet to the GGSN serving the destination group according to the IPv6 address prefix acquired by the second acquiring module, and the data packet Or is used to send a data packet to the GGSN serving the destination group according to the IPv4 address obtained by the second obtaining module, and the data packet carries the IPv4 address.
  • the embodiment of the present invention also provides a GGSN, including:
  • the first receiving module is configured to receive a data packet sent by the M2M application server
  • the third obtaining module is connected to the first receiving module and is used to obtain the IPv6 address prefix in the data packet received by the first receiving module, and obtain the purpose according to the correspondence between the IPv6 address prefix and the group identifier
  • the group identifier of the group or used to obtain the IPv4 address in the data packet received by the first receiving module, and obtain the group identifier of the target group according to the correspondence between the IPv4 address and the group identifier;
  • the second sending module is respectively connected to the third acquiring module and the first receiving module, and receives the first receiving module according to the group identifier of the destination group acquired by the third acquiring module
  • the data packet is sent to the destination group.
  • the embodiment of the present invention also provides a system for sending data packets by an M2M application server, including the M2M application server as described above and the GGSN as described above, and the first sending module is connected to the first receiving module .
  • an IPv6 address prefix or IPv4 address is allocated to a group in an M2M application, the group identification of the destination group is obtained through the IPv6 address prefix or IPv4 address, and the data packet is sent to the group identification service Therefore, it is possible to deliver data packets to the M2M application terminals in the group, which saves IP address resources.
  • Figure 1 shows a schematic diagram of a wireless evolution network structure involved in an embodiment of the present invention
  • Figure 2 shows a schematic diagram of extending the functions of an M2M application server and a GGSN protocol stack in an embodiment of the present invention
  • Fig. 3 is a flowchart of Embodiment 1 of the method for delivering a data packet by an M2M application server of the present invention
  • Fig. 4 is a flowchart of Embodiment 2 of a method for delivering a data packet by an M2M application server of the present invention
  • Fig. 5 shows this Schematic diagram of the structure of the embodiment of the inventive M2M application server
  • Figure 6 shows a schematic structural diagram of an embodiment of a GGSN of the present invention. Detailed ways
  • FIG. 1 is a schematic diagram of a wireless evolution network structure involved in an embodiment of the present invention, which mainly includes: Mobility Management Entity (NME for short) 11. Serving Gateway (Serving Gateway, S for short) -GW) 12 and a packet data network gateway (Packet Data Network Gateway, P-GW for short) 13, where MME11 is responsible for non-access stratum (Non access stratum, NAS) signaling encryption, roaming and tracking, and assigns temporary user identification , Security functions, etc., MME11 corresponds to the control plane part of the current Universal Mobile Telecommunications System (UMTS) system internal service GPRS support node (Serving GPRS Support Node, SGSN for short); S-GW12 is responsible for local mobile Security anchors, mobility anchors within the 3GPP system, and lawful interception related information; P-GW13 is responsible for policy execution, billing, and lawful interception related functions; dynamic host configuration agreement
  • the Dynamic Host Conf igurat ion Protocol (DHCP for short) server 16 is mainly
  • the application network 14 is connected to the P-GW 13, and the application network 14 is used to provide various services for a user terminal (User Equipment, UE for short) 15.
  • a user terminal User Equipment, UE for short
  • the M2M application terminal for example, M2ME, MTC terminal or M2M device
  • the M2M application server is equivalent to application network 14
  • GGSN is equivalent to P -GW13.
  • the M2M server distributes data packets to each M2M application terminal.
  • M2M applications the number of M2M application terminals is huge. If each M2M application terminal is configured with an IP address separately, a lot of IP addresses are required, but IP address resources are limited. In M2M applications, multiple M2M application terminals can form a group.
  • Manner 1 If a data packet needs to be sent to all M2M application terminals in a group, the M2M application server can obtain the group identifier of the group, and then according to the correspondence between the IPv6 address prefix and the group identifier, it can give The group is assigned an IPv6 address prefix.
  • the group identifier is an identifier used to identify a group or a user group, and is a user group identifier (also can be described as a user group user identifier) or a group identifier (also can be described as a group user identifier), or other
  • the identifier indicating the group or user group to which the user equipment belongs for example, the APN is used to identify the group or user group to which the user equipment belongs, then the APN is the identifier of the group or user group to which the user equipment belongs, and the present invention does not limit the group identifier.
  • the group or user group may be a user equipment group or an M2M industry user (MTC User) or an M application subscription user (MTC Subscr iber) or other groups composed of multiple devices, and the present invention is not limited.
  • the M2M application server can address the GGSN serving the group according to the IPv6 address prefix, and send a data packet to the GGSN, and the data packet can carry the IPv6 address prefix.
  • the GGSN After the GGSN receives the data packet sent by the M2M application server, the GGSN can obtain the IPv6 address prefix in the data packet, so that it can be based on the IPv6 address The correspondence between the prefix and the group ID is obtained, the group ID corresponding to the IPv6 prefix is obtained, and the data packet is delivered to the group.
  • the delivery form may be MBMS or CBC.
  • the M2M application server can obtain the group identifier of the group and the identifier of the M2M application terminal (such as IMSI), and then use the IPv6 address prefix and the group identifier.
  • the group may be assigned an IPv6 address prefix
  • the M2M application terminal in the group may be assigned the IPv6 address The interface ID.
  • the M2M application server can address the GGSN serving the group and send a data packet to the GGSN, and the data packet can carry the IPv6 address prefix And the interface identifier of the IPv6 address.
  • the GGSN After the GGSN receives the data packet sent by the M2M application server, it can obtain the IPv6 address prefix and the interface identifier of the IPv6 address in the data packet, so that it can be based on the correspondence between the IPv6 address prefix and the group identifier, and the interface identifier of the IPv6 address and the interface identifier of the IPv6 address.
  • the corresponding relationship of the terminal identifier of each M2M application terminal in the group is obtained, and the target group identifier and the terminal identifier of a certain M2M application terminal under the group are acquired.
  • the GGSN does not have the context information of the M2M application terminal, at least one of the obtained group identification or the terminal identification of the M2M application terminal may be sent to the subscription database (such as HLR, Home Subscr iber Server, or other information).
  • HSS Home Subscr iber Server, or other information
  • M2M application server obtains the core management network element (such as SGSN, MSC, or fixed E) serving the M2M application terminal, and initiates a PDP context one-time activation process.
  • the correspondence between the IPv6 address prefix and the group identifier and the correspondence between the interface identifier of the IPv6 address and the terminal identifier of the M2M application terminal can be signed in the subscription database as the subscription data of the group, or pre-configured in the M2M application server, GGSN or In a network-side network element such as a DHCP server.
  • the subscription database can be HLR, HSS or a group subscription database dedicated to M2M services. From the GGSN, the M2M application server or the DHCP server, the correspondence between the IPv6 address prefix and the group identifier and the correspondence between the interface identifier of the IPv6 address and the terminal identifier of the M2M application terminal can be learned.
  • the corresponding relationship between the interface identifier of the address and the terminal identifier of the M2M application terminal may be a relationship list or an algorithm, such as a hash (HASH) algorithm, a logical addition algorithm, and the like.
  • each M2M application terminal When assigning an IPv6 address interface identifier to each M2M application terminal, according to certain principles, such as using logical addition or logical subtraction algorithms, each M2M application terminal is assigned an IPv6 address interface identifier, or other algorithms can also be adopted , As long as one M2M application terminal can be addressed according to the interface identifier of the IPv6 address.
  • Method 2 If a data packet needs to be sent to all M2M application terminals in a group, the M2M application server can obtain the group ID of the group, and assign one to a group according to the correspondence between the IPv4 address and the group ID IPv4 address.
  • the M2M application server can address the GGSN serving the group according to the IPv4 address, and send a data packet to the GGSN.
  • the data packet may carry the IPv4 address.
  • the GGSN After receiving the data packet sent by the M2M application server, the GGSN can obtain the group identifier corresponding to the IPv4 address in the data packet according to the correspondence between the IPv4 address and the group identifier, and then deliver the data packet to the group in the form of delivery It can be MBMS or CBC.
  • the protocol stack function between the GGSN and the M2M application server can be extended, so that the data packet issued by the M2M application server can carry the identification information of the M2M application terminal.
  • the International Mobile Identity International Mobile Identity
  • IMSI International Mobile Identity
  • Figure 2 is a schematic diagram of extending the functions of the M2M application server and the GGSN protocol stack in the embodiment of the present invention.
  • the data packet can be compressed so that the data packet sent by the M2M application server carries the identification information of the M2M application terminal, and the function of parsing the identification information of the M2M application terminal is added on the GGSN side, so that When the GGSN receives the data packet sent by the M2M application server, it can parse out the identification information of the M2M application terminal in the data packet.
  • the correspondence between the IPv4 address and the group identifier can be signed in the subscription database as the subscription data of the group, or can be pre-configured in the network such as the M2M application server, GGSN or DHCP server.
  • the group subscription database can be HLR, HSS or a subscription database dedicated to M2M services (such as a group subscription database).
  • the correspondence between the IPv4 address and the group identifier can be obtained from the GGSN, the M2M application server, or the DHCP server.
  • the correspondence between the IPv4 address and the group identifier may be a relationship list, or may be an algorithm, such as a hash (HASH) algorithm, a logical addition algorithm, and the like.
  • Fig. 3 is a flowchart of Embodiment 1 of a method for sending data packets by an M2M application server according to the present invention, including:
  • Step 101 The M2M application server obtains the group identifier of the target group.
  • the destination group is the group of data packets to be received.
  • Step 102 The M2M application server obtains the IPv6 address prefix corresponding to the group identifier of the destination group according to the correspondence between the IPv6 address prefix and the group identifier.
  • the M2M application server itself can configure the correspondence between the IPv6 address prefix and the group identifier, or the M2M application server can obtain the correspondence between the two from network-side entities such as HSS, HLR, and group subscription database.
  • Step 103 According to the IPv6 address prefix, the M2M application server sends the data packet to the GGSN serving as the destination group. Specifically, the M2M application server addresses the GGSN serving the destination group according to the IPv6 address prefix, and sends a data packet to the GGSN, and the data packet may carry the IPv6 address prefix.
  • the embodiment shown in FIG. 3 may further include:
  • Step 104 The GGSN obtains the IPv6 address prefix in the data packet, obtains the group identifier of the destination group according to the correspondence between the IPv6 address prefix and the group identifier, and sends the data packet to the destination in a manner of MBMS or CBC. Way.
  • the GGSN sends an MBMS session start request (MBMS Se s ion Start Reques t) message to the SGSN.
  • the MBMS session start request message can carry the group of the target group.
  • the SGSN can obtain the service area of the M2M terminal of the destination group and the radio network subsystem (Radio Network Subsystem, RNC for short) according to the group identification; and send the data packet to the destination group.
  • the specific one can be based on the processing mechanism of MBMS.
  • the data packet is delivered to the destination terminal.
  • the service area corresponds to the wireless network subsystem.
  • the first embodiment may further include: the M2M application server obtains the identity of the M2M application terminal in the target group, and obtains the corresponding M2M application terminal according to the correspondence between the interface identity of the IPv6 address and the identity of each M2M application terminal in the target group
  • the interface identifier of the IPv6 address; the data packet sent by the M2M application server to the GGSN serving the destination group also carries the interface identifier of the IPv6 address.
  • step 103 it can also include the GGSN obtaining the IPv6 address prefix and the interface identifier of the IPv6 address in the data packet, according to the correspondence between the IPv6 address prefix and the group identifier, and the interface identifier of the IPv6 address and the identity of each M2M application terminal in the group.
  • the corresponding relationship between the two is to obtain the group identifier of the destination group and the terminal identifier of the M2M application terminal corresponding to the interface identifier of the IPv6 address in the destination group, and send the data packet to the M2M application terminal corresponding to the interface identifier of the IPv6 address.
  • sending the data packet to the M2M application terminal corresponding to the interface identifier of the IPv6 address may specifically include: if the context information of the M2M application terminal exists in the GGSN, the GGSN initiates a PDP context one-time activation process, and sends the data packet For the M2M application terminal; if the GGSN does not have the context information of the M2M application terminal, the GGSN can send at least one of the group identification of the target group or the terminal identification of the MM2M application terminal to the subscription database (such as HSS, HLR or group subscription database, etc.) obtain the core management network element currently serving the M2M application terminal equipment (such as SGSN, MSC, MME, etc.), initiate the one-time activation process of the PDP context on the network side, and send the data packet to the M2M application
  • the terminal identifier of the terminal corresponds to the M2M application terminal.
  • the GGSN itself can configure the correspondence between the IPv6 address prefix and the group identification, and the correspondence between the interface identification of the IPv6 address and the terminal identification of the M2M application terminal, or it can be obtained from the HSS, HLR, or group subscription database, etc., according to the present invention There is no limitation in the embodiment.
  • Figure 4 shows the flow of the second embodiment of the method for delivering data packets by the M2M application server according to the present invention Figure, including:
  • Step 201 The M2M application server obtains the group identifier of the target group.
  • Step 202 The M2M application server determines the correspondence between the IPv4 address and the group identifier, and obtains the IPv4 address corresponding to the group identifier of the target group.
  • the M2M application server itself may configure the correspondence between the IPv4 address and the group identifier, or may obtain the correspondence between the two from network side entities such as HSS, HLR, and group subscription database.
  • Step 203 the M2M application server sends the data packet to the GGSN serving as the target group. Specifically, the M2M application server addresses the GGSN serving the destination group according to the IPv4 address, and sends the data packet to the GGSN, which may carry the IPv4 address.
  • the embodiment shown in FIG. 4 may further include:
  • Step 204 The GGSN obtains the IPv4 address in the data packet, obtains the group identifier of the destination group according to the correspondence between the IPv4 address and the group identifier, and sends the data packet to the destination group.
  • GGSN obtains the IPv4 address in the data packet, obtains the group identifier of the destination group according to the correspondence between the IPv4 address and the group identifier, and sends the data packet to the destination group.
  • the GGSN sends an MBMS session start request (MBMS Ses si on Star t Reques t) message to the SGSN, and the MBMS session start request message can carry the destination group.
  • SGS can obtain the service area of the M2M terminal of the destination group and the RNC according to the group ID) and send the data packet to the destination group according to the processing mechanism of MBMS.
  • the second embodiment may also include: the M2M application server obtains the identification information of a certain M2M application terminal in the target group; the data packet sent by the M2M application server to the GGSN serving the target group also carries a certain M2M application terminal ⁇ identification information.
  • the GGSN obtains the IPv4 address in the data packet and the identification information of the M2M application terminal, obtains the group identification of the destination group according to the correspondence between the IPv4 address and the group identification, and sends the data packet to the destination group
  • the M2M application terminal corresponding to the identification information of the M2M application terminal in the group.
  • the data packet sent by the M2M application server can carry the identification information of the M2M application terminal.
  • Information (such as IMS I).
  • sending the data packet to the M2M application terminal corresponding to the identification information of the M2M application terminal in the destination group may specifically include: if the context information of the M2M application terminal exists in the GGSN, it may be obtained according to the context information.
  • the core management network element of the M2M application terminal service (such as SGSN, MSC, or MN E), the GGSN initiates the PDP context one-time activation process, and sends the data packet to the M2M application terminal; if the GGSN does not have the M2M application terminal
  • the context information can be obtained from the subscription database (such as HLR, HSS, or group subscription database) or the M2M application server as the M2M application terminal based on at least one of the obtained group identification or the terminal identification of the M2M application terminal.
  • the core management network element of Yueliangwu (such as SGSN, MSC, or MME) initiates a PDP context one-time activation process, and sends a data packet to the M2M application terminal corresponding to the identification information of the M2M application terminal.
  • FIG. 5 is a schematic structural diagram of an embodiment of an M2M application server of the present invention, including a first obtaining module 21, a second obtaining module 22, and a first sending module 23, where the first obtaining module 21 is used to obtain the group of the target group Group ID; the second obtaining module 22 is connected to the first obtaining module 21, and is used to obtain the IPv6 address prefix corresponding to the group ID of the destination group obtained by the first obtaining module 21 according to the correspondence between the IPv6 address prefix and the group ID Or according to the correspondence between the IPv4 address and the group identifier, obtain the IPv4 address corresponding to the group identifier of the destination group obtained by the first obtaining module 21; the first sending module 23 is connected to the second obtaining module 22, and is configured to 2.
  • the IPv6 address prefix obtained by the obtaining module 22 sends a data packet to the GGSN serving the destination group, and the data packet carries the IPv6 address prefix; or is used according to the IPv4 address obtained by the second obtaining module 22, The data packet is sent to the GGSN serving the destination group, and the data packet carries the IPv4 address.
  • the first obtaining module 21 may also be used to obtain the identity of the M2M application terminal in the target group
  • the second obtaining module 22 may also be used to obtain the interface identity of the IPv6 address and each M2M application terminal in the target group. Apply the corresponding relationship of the terminal identifier to obtain the interface identifier of the IPv6 address corresponding to the M2M application terminal; the data carrying the IPv6 address prefix sent by the first sending module 23 The data packet also carries the interface identifier of the IPv6 address.
  • the first obtaining module 21 may also be used to obtain the terminal identifier of a certain M2M application terminal in the target group; the data packet carrying the IPv4 address sent by the first sending module 23 also carries the The terminal identifier of a certain M2M application terminal.
  • FIG. 6 is a schematic structural diagram of an embodiment of a GGSN of the present invention, including a first receiving module 31, a third acquiring module 32, and a second sending module 33, where the first receiving module 31 is used to receive data packets sent by the M2M application server ;
  • the third obtaining module 32 is connected to the first receiving module 31, and is used to obtain the IPv6 address prefix in the data packet received by the first receiving module 31, and obtain the destination group information according to the correspondence between the IPv6 address prefix and the group identifier Group identifier; or used to obtain the IPv4 address in the data packet received by the first receiving module 31, and obtain the group identifier of the destination group according to the correspondence between the IPv4 address and the group identifier; the second sending module 33 and
  • the third acquiring module 32 is connected to the first receiving module 31, and according to the group identifier of the destination group acquired by the third acquiring module 32, sends the data packet received by the first receiving module 31 to the destination group.
  • the first receiving module 31 may be specifically used to receive a data packet including an IPv4 address prefix and an interface identifier of an IPv6 address; or specifically may be used to receive a data packet including an IPv4 address and identification information of a certain M2M application terminal;
  • the third acquiring module 32 may be specifically configured to acquire the IPv6 address prefix and the interface identifier of the IPv6 address in the data packet received by the first receiving module 31, according to the correspondence between the IPv6 address prefix and the group identifier, and the IPV 6 address
  • the corresponding relationship between the interface identifier of the M2M application terminal and the identifier of each M2M application terminal in the group, the group identifier of the target group and the terminal identifier of the M2M application terminal corresponding to the interface identifier of the IPv6 address in the target group are obtained; or It can be used to obtain the IPv4 address in the data packet received by the first receiving module 31 and the identification information of a certain M2M application terminal, to locate the correspondence between the IPv4 address and the group identifier, and to obtain the group identifier of the destination group;
  • the second sending module 33 may be specifically configured to use the group identifier of the destination group acquired by the third acquiring module 32 and the terminal of the M2M application terminal corresponding to the interface identifier of the IPv6 address in the destination group.
  • the terminal identifier which sends the data packet received by the first receiving module 31 to the M2M application terminal corresponding to the interface identifier of the IPv6 address; or can be specifically used for the group identifier of the target group acquired by the third acquiring module 32
  • the identification information of a certain M2M application terminal the data packet received by the first receiving module 31 is sent to the M2M application terminal corresponding to the identification information of a certain M2M application terminal in the destination group.
  • An embodiment of the present invention also provides a system for sending a data packet by an M2M application server, which may include the M2M application server and the GGSN in the foregoing embodiment, wherein the first sending module is connected to the first receiving module.
  • an IPv6 address prefix or IPv4 address is allocated to a group in an M2M application, the group identifier of the destination group is obtained through the IPv6 address prefix or IPv4 address, and the data packet is sent to the group
  • the GGSN that identifies the service, the GGSN sends the data packet to the destination group, so that the data packet can be delivered to the M2M application terminal in the group, which saves IP address resources.
  • the data packet can also carry the interface identifier of the IPv6 address prefix or the M2M application terminal, and IP address resources are saved.

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Description

M2M应用服务器下发数据包的方法及系统
本申请要求于 2009 年 08 月 19 日提交中国专利局、 申请号为 200910166468. 7、 发明名称为 "M2M应用服务器下发数据包的方法及系统" 的中国专利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及通信技术, 尤其涉及一种 M2M应用服务器下发数据包的方 法及系统, 还涉及一种 M2M应用服务器和 GGSN。
背景技术
机器到机器(Machine to Machine, 简称 M2M )应用指的是一个或多 个网元之间在不需要人为参与的情况下进行的网络通讯, 例如交通控制与 管理、 工厂监控、 远程抄表等应用。 M2M应用中, 多个具有相同 M2M应用的 M2M应用终端( M2M应用终端对应的英文可以是 M2M Equ i pment、 M2M Device, 或 Machine Type Communicat ion Device等)组成一个整体, 简称群组。 网络运营商或者行业用户可以将群组作为一个整体进行管理和控制。 例如 电力行业的远程抄表应用, 可以将一个城市的所有电表組成一个群組 , 网 络运营商和电力行业用户可以将该群组作为一个整体进行移动性管理优化 或者接入管理。
在 H2H ( Human to Human, 简称 H2H ) 应用中, 如果网络侧需要下发 数据包给用户终端 (User Equipment , 简称 UE ), 且网关支持 GPRS 节点 ( Gateway GPRS Support Node,简称 GGSN )中没有该 UE的分组数据( Packet Data Protocol , 简称 PDP )上下文信息, 则 GGSN需要才艮据数据包(Data Packet )的目的地址 (即 UE的地址)查询自身存储的静态地址的配置信息。 如果在配置信息中查询到该 UE的地址, 则 GGSN根据查询到的静态地址映 射得到 UE 的国际移动标识 ( Internat iona l Mob i le Subscr ibers Identification Number, 简称 IMSI )信息, GGSN才艮据获得的 IMSI信息查 询归属位置寄存器 ( Home Location Register, 筒称 HLR ), 得到 UE附着的 服务 GPRS支持节点 (Serving GPRS Support Node, 简称 SGSN)的信息, 后续 GGSN将发起网络侧发起的一次激活流程为 UE建立上下文, 将分组数 据网络 (Packet Data Network, 简称 PDN) 的数据包下发。
在 M2M应用中 , 如果运营商需要对 M2M应用终端通过多媒体广播組播 ( Multimedia Broadcast Multicast Service, 简称 MBMS)或小区广播中 心(Cell Broadcast Center, 筒称 CBC)方式组播和对某一个 M2M应用终 端下发数据包, 由于 M2M应用终端数量众多, 按照 H2H处理机制, GGSN需 要对每一个 M2M应用终端配置 M2M应用终端的标识和 M2M应用终端的 I P地 址之间的关系 , 这样会消耗很多 IP地址资源。 发明内容
本发明实施例针对现有技术中存在的问题, 提供一种 M2M应用服务器 下发数据包的方法及系统, 并提供一种 M2M应用服务器以及 GGSN, 能够节 省分配给 M2M应用中 M2M应用终端的 IP地址。
本发明实施例提供了一种 M2M应用服务器下发数据包的方法, 包括: M2M应用 良务器获取目的群组的群组标识;
所述 M2M应用服务器根据 IPv6地址前缀和群组标识的对应关系, 获取 所述目的群组的群组标识对应的 IPv6地址前缀;
所述 M2M应用服务器根据所述 IPv6地址前缀, 将数据包发送给为所述 目的群组服务的 GGSN, 所述数据包中携带 IPv6地址前缀。
本发明实施例还提供了一种 M2M应用服务器下发数据包的方法, 包括: M2M应用 良务器获取目的群组的群组标识;
所述 M2M应用 良务器 ^居 IPv4地址和群组标识的对应关系, 获取所述 目的群组的群组标识对应的 IPv4地址; 所述 M2M应用服务器根据所述 IPv4地址, 将数据包发送给为所述目的 群组服务的 GGSN, 所述数据包中携带 IPv4地址。
本发明实施例还提供了一种 M2M应用服务器, 包括:
第一获取模块 , 用于获取目的群组的群组标识;
第二获取模块, 与所述第一获取模块连接, 用于根据 IPv6地址前缀和 群組标识的对应关系 , 获取所述第一获取模块获取的目的群組的群組标识 对应的 IPv6地址前缀; 或者 4艮据 IPv4地址和群组标识的对应关系, 获取 所述第一获取模块获取的所述目的群组的群组标识对应的 IPv4地址;
第一发送模块, 与所述第二获取模块连接, 用于根据所述第二获取模 块获取的所述 IPv6地址前缀,将数据包发送给为所述目的群组服务的 GGSN, 所述数据包中携带 IPv6地址前缀; 或者用于根据所述第二获取模块获取的 IPv4地址, 将数据包发送给为所述目的群组服务的 GGSN, 所述数据包中携 带 IPv4地址。
本发明实施例还提供了一种 GGSN, 包括:
第一接收模块, 用于接收 M2M应用服务器发送的数据包;
第三获取模块, 与所述第一接收模块连接, 用于获取所述第一接收模 块接收到的数据包中的 IPv6地址前缀, 才艮据 IPv6地址前缀和群组标识的 对应关系, 获取目的群组的群组标识; 或者用于获取所述第一接收模块接 收到的数据包中的 IPv4地址, 才艮据 IPv4地址和群组标识的对应关系, 获 取目的群组的群组标识;
第二发送模块, 分别与所述第三获取模块和所述第一接收模块连接, 根据所述第三获取模块获取的所述目的群组的群组标识, 将所述第一接收 模块接收到的数据包发送给所述目的群组。
本发明实施例还提供了一种 M2M应用服务器下发数据包的系统, 包括 如前所述的 M2M应用服务器和如前所述的 GGSN, 所述第一发送模块与所述 第一接收模块连接。 本发明各个实施例, 为 M2M应用中的群组分配一个 IPv6 地址前缀或 IPv4地址,通过该 IPv6地址前缀或 IPv4地址就获取目的群组的群组标识, 将数据包发送给为群组标识服务的 GGSN, 从而能够实现对群组中的 M2M应 用终端下发数据包, 节省了 IP地址资源。
下面通过附图和实施例, 对本发明的技术方案做进一步的详细描述。 附图说明
图 1所示为本发明实施例中涉及到的一种无线演进网络结构示意图; 图 2所示为本发明实施例中扩展 M2M应用服务器和 GGSN协议栈功能的 示意图;
图 3所示为本发明 M2M应用服务器下发数据包的方法实施例一流程图; 图 4所示为本发明 M2M应用服务器下发数据包的方法实施例二流程图; 图 5所示为本发明 M2M应用服务器实施例结构示意图;
图 6所示为本发明 GGSN实施例结构示意图。 具体实施方式
如图 1所示为本发明实施例中涉及到的一种无线演进网络结构示意图, 主要包括: 移动管理实体 (Mobility Management Entity, 简称匪 E) 11、 月良务网关( Serving Gateway, 筒称 S-GW ) 12和分组数据网网关( Packet Data Network Gateway,简称 P-GW )13,其中 MME11负责非接入层( Non access stratum, 简称 NAS)信令加密、 漫游和跟踪, 分配用户临时身份标识、 安 全功能等, MME11 对应于当前通用移动通信系统 (Universal Mobile Telecommunications System, 简称 UMTS) 系统内部服务 GPRS 支持节点 (Serving GPRS Support Node, 筒称 SGSN ) 的控制平面部分; S-GW12 负 责本地的移动性锚点和 3GPP 系统内部的移动性锚点以及合法监听相关信 息; P-GW13 负责策略执行和计费以及合法监听相关功能; 动态主机配置协 议 ( Dynamic Hos t Conf igurat ion Protocol , 简称 DHCP )服务器 16主要 用于管理动态的 IP地址分配及其他相关的环境配置工作, 例如: 域名系统 ( Doma in Name Sys tem, 简称 DNS )、 命名月良务 ( Windows Internet Naming Server , 简称 WINS )和 GGSN的设置), 可以由运营商独立配置, 与 MME11 连接
应用网 14与 P-GW13连接,应用网 14用于为用户终端(User Equipment , 简称 UE ) 15提供各种业务。
如果 M2M应用中釆用如图 1所示的网络结构, M2M应用终端(例如, 如 M2ME、 MTC终端或 M2M设备)相当于 UE15 , M2M应用月良务器相当于应用网 14 , GGSN相当于 P-GW13。 M2M服务器向各个 M2M应用终端分发数据包。
在 M2M应用中, M2M应用终端数量庞大, 如果给各个 M2M应用终端分别 配置 IP地址, 需要很多 IP地址, 但是 IP地址资源有限。 在 M2M应用中, 多个 M2M应用终端可以组成一个群组。
方式 1 , 如果需要向一个群组中的所有 M2M应用终端发送数据包, M2M 应用服务器可以获取该群组的群组标识, 才艮据 IPv6地址前缀和群组标识之 间的对应关系, 可以给该群组分配一个 IPv6地址前缀。 所述群组标识为用 于标识一个群组或者一个用户组的标识, 是用户组标识(也可以描述为用 户组用户标识)或者群组标识(也可以描述为群组用户标识), 或者其他指 示用户设备所属群组或者用户组的标识, 例如, 通过 APN标识用户设备所 属群组或者用户组, 则 APN就是用户设备所属群组或者用户组的标识, 本 发明对群组标识不做限制。所述群组或者用户组可以是用户设备组或者 M2M 行业用户 (MTC User )或者 M 应用签约用户 (MTC Subscr iber )或者其 他由多个设备组成的群组,本发明不作限制。 M2M应用服务器根据所述 IPv6 地址前缀可以寻址到为该群组服务的 GGSN, 向所述 GGSN发送数据包,数据 包中可以携带所述 IPv6地址前缀。 GGSN接收到 M2M应用服务器发送的数据 包后, GGSN可以获取数据包中的 IPv6地址前缀, 从而可以根据 IPv6地址 前缀和群组标识之间的对应关系, 获取 IPv6前缀对应的群组标识, 并向该 群组下发数据包, 下发形式可以是 MBMS或 CBC的方式。
如果需要向群组中的某个 M2M应用终端发送数据包, M2M应用服务器可 以获取该群组的群组标识和 M2M应用终端的标识(如 IMSI ), 才艮据 IPv6地 址前缀和群组标识的对应关系,以及 I Pv 6地址的接口标识和群组中各个 M2M 应用终端的终端标识的对应关系 , 可以给该群組分配一个 IPv6地址前缀, 给群组中的 M2M应用终端分配所述 IPv6地址的接口标识。 M2M应用服务器 才艮据所述 IPv6地址前缀和 IPv6地址的接口标识, 可以寻址到为该群组月良 务的 GGSN, 向所述 GGSN发送数据包, 数据包中可以携带所述 IPv6地址前 缀和 IPv6地址的接口标识。 GGSN接收到 M2M应用服务器发送的数据包后, 可以获取数据包中的 IPv6地址前缀和 IPv6地址的接口标识, 从而可以根 据 IPv6地址前缀和群组标识的对应关系, 以及 IPv6地址的接口标识和该 群组中各个 M2M应用终端的终端标识的对应关系 , 获取目的群组标识和该 群组下的某一个 M2M应用终端的终端标识。 如果 GGSN没有该 M2M应用终端 的上下文信息, 则可以才艮据获取的群组标识或 M2M应用终端的终端标识中 的至少一项向签约数据库 (如 HLR、 本地签约服务器 (Home Subscr iber Server , 筒称 HSS )、 或为 M2M服务的群组签约数据库)或 M2M应用服务器 获取为该 M2M应用终端服务的核心管理网元(如 SGSN、 MSC、 或固 E ), 发 起 PDP上下文一次激活流程。
IPv6地址前缀和群组标识的对应关系以及 IPv6地址的接口标识和 M2M 应用终端的终端标识的对应关系可以作为群组的签约数据签约在签约数据 库中, 也可以预先配置在 M2M应用服务器、 GGSN或 DHCP服务器等网络侧 网元中。签约数据库可以是 HLR, HSS或专门为 M2M服务的群组签约数据库。 从 GGSN、 M2M应用服务器或 DHCP服务器可以获知 IPv6地址前缀和群组标 识之间的对应关系以及 IPv6地址的接口标识和 M2M应用终端的终端标识之 间的对应关系。 IPv6地址前缀和群组标识之间的对应关系、 以及 IPv6地 址的接口标识和 M2M应用终端的终端标识的对应关系可以是一个关系列 表, 也可以是一种算法, 例如哈希(HASH )算法、 逻辑加算法等。
为每个 M2M应用终端分配 IPv6地址的接口标识时, 可以根据一定的原 则 , 如采用逻辑加或逻辑减等算法, 为每个 M2M应用终端分配一个 IPv6地 址的接口标识, 或者也可以采取其他算法, 只要根据该 IPv6地址的接口标 识能够寻址到一个 M2M应用终端即可。
方式 2 , 如果需要向一个群组中的所有 M2M应用终端发送数据包, M2M 应用服务器可以获取该群组的群组标识, 根据 IPv4地址和群组标识之间的 对应关系为一个群组分配一个 IPv4地址。 M2M应用 良务器才艮据所述 IPv4地 址, 可以寻址到为该群组服务的 GGSN, 向所述 GGSN发送数据包, 数据包中 可以携带所述 IPv4地址。 GGSN接收到 M2M应用服务器发送的数据包后, 可 以根据 IPv4地址和群组标识的对应关系, 获取数据包中的 IPv4地址对应 的群组标识, 从而向该群组下发数据包, 下发形式可以是 MBMS或 CBC的方 式。
如果需要向群组中的某个 M2M应用终端发送数据包, 则可以扩展 GGSN 和 M2M应用服务器之间的协议栈功能, 使得 M2M应用服务器下发的数据包 中能够携带 M2M应用终端的标识信息, 例如国际移动标识( Internat iona l Mob i le Subscr ibers Ident if icat ion Number , 简称 IMSI )。 如图 2所示为 本发明实施例中扩展 M2M应用服务器和 GGSN协议栈功能的示意图, 从图中 可以看出, 在 M2M应用 良务器一侧, 在最顶层增加了携带 M2M应用终端的 标识信息的功能, 也就是说可以通过对数据包进行压缩, 使得 M2M应用服 务器发送的数据包中携带有 M2M应用终端的标识信息 , 在 GGSN—侧增加了 解析 M2M应用终端的标识信息的功能, 使得 GGSN在接收到 M2M应用服务器 发送的数据包时, 能够解析出数据包中的 M2M应用终端的标识信息。
IPv4地址和群组标识的对应关系可以作为群组的签约数据签约在签约 数据库中, 也可以预先配置在 M2M应用服务器、 GGSN或 DHCP服务器等网络 侧网元中。 群组签约数据库可以是 HLR, HSS或专门为 M2M服务的签约数 据库(如群组签约数据库)。 从 GGSN、 M2M应用服务器、 或 DHCP服务器可 以获取 IPv4地址和群组标识之间的对应关系。 IPv4地址和群组标识之间的 对应关系可以是一个关系列表, 也可以是一种算法, 例如哈希 (HASH )算 法、 逻辑加算法等。
如图 3所示为本发明 M2M应用服务器下发数据包的方法实施例一流程 图,包括:
步驟 101、 M2M应用 良务器获取目的群组的群组标识。 目的群组即为待 接收数据包的群组。
步驟 102、 M2M应用月良务器才艮据 IPv6地址前缀和群组标识的对应关系, 获取目的群组的群组标识对应的 IPv6地址前缀。 M2M应用 良务器自身可以 配置 IPv6 地址前缀和群组标识的对应关系, 或者 M2M应用 良务器可以从 HSS、 HLR、 群组签约数据库等网络侧实体中获取这二者之间的对应关系。
步驟 103、 M2M应用服务器根据 IPv6地址前缀, 将数据包发送给为目 的群组良务的 GGSN。 具体地, M2M应用 良务器才艮据 IPv6地址前缀寻址到为 目的群组服务的 GGSN ,并将数据包发送给 GGSN ,数据包中可以携带所述 IPv6 地址前缀。 图 3所示的实施例中还可以包括:
步驟 104、 GGSN获取数据包中的 IPv6地址前缀, 根据 IPv6地址前缀 和群组标识的对应关系, 获取目的群组的群组标识, 将数据包发送给目的 下发的方式可以是 MBMS或 CBC的方式。 例如在 MBMS机制下的会话开始流 程(Ses s ion Start procedure ) 中, GGSN向 SGSN发送 MBMS会话开始请求 ( MBMS Ses s ion Start Reques t ) 消息, MBMS会话开始请求消息中可以携 带目的群组的群组标识; SGSN可以才艮据群组标识获取该目的群组 M2M终端 的服务区域以及无线网络子系统(Radio Network Subsys tem, 简称 RNC ); 将数据包发送给目的群组。 其中, 具体的可个根据 MBMS的处理机制, 在服 务区域和无线网络子系统范围内, 将数据包下发给目的终端。 其中服务区 域与无线网络子系统对应。
实施例一中还可以包括: M2M应用服务器获取目的群组中 M2M应用终端 的标识, 才艮据 IPv6地址的接口标识和目的群组中各个 M2M应用终端标识的 对应关系 , 获取 M2M应用终端对应的 IPv6地址的接口标识; M2M应用服务 器发送给为目的群組服务的 GGSN的数据包中还携带 IPv6地址的接口标识。
步驟 103之后还可以包括 GGSN获取数据包中的 IPv6地址前缀和 IPv6 地址的接口标识, 根据 IPv6 地址前缀和群组标识的对应关系, 以及 IPv6 地址的接口标识和群组中各个 M2M应用终端标识之间的对应关系 , 获取目 的群组的群组标识和目的群组中与 IPv6地址的接口标识对应的 M2M应用终 端的终端标识,将数据包发送给与 IPv6地址的接口标识对应 M2M应用终端。
步驟 104中, 将数据包发送给与 IPv6地址的接口标识对应的 M2M应用 终端, 具体可以包括: 如果 GGSN中存在该 M2M应用终端的上下文信息, 则 GGSN发起 PDP上下文一次激活流程, 将数据包发送给 M2M应用终端; 如果 GGSN没有该 M2M应用终端的上下文信息,则 GGSN可以才艮据获取的目的群组 的群组标识或 MM2M应用终端的终端标识中的至少一项向签约数据库(如 HSS、 HLR或群组签约数据库等)获取当前为该 M2M应用终端设备服务的核 心管理网元(如 SGSN, MSC, MME等), 发起网络侧的 PDP上下文一次激活 流程, 将数据包发送给与 M2M应用终端的终端标识对应的 M2M应用终端。 这样就可以将数据包发送给目的群组的单个 M2M应用终端。 GGSN 自身可以 配置 IPv6地址前缀和群组标识的对应关系, 以及 IPv6地址的接口标识和 M2M应用终端的终端标识之间的对应关系 , 或者可以从 HSS、 HLR或者群组 签约数据库等获取, 本发明实施例中不作限制。
通过上述方法, 既可以实现对一个群组的数据组播, 也可以实现对该 群组下的 M2M应用终端的数据单播, 同时也大大节省了网络的 IP地址资源。
如图 4所示为本发明 M2M应用服务器下发数据包的方法实施例二流程 图, 包括:
步骤 201、 M2M应用 良务器获取目标群组的群组标识。
步驟 202、 M2M应用 良务器才 居 IPv4地址和群组标识的对应关系, 获 取目标群组的群组标识对应的 IPv4 地址。 M2M应用服务器自身可以配置 IPv4地址和群组标识的对应关系, 或者可以从 HSS、 HLR、 群组签约数据库 等网络侧实体中获取这二者之间的对应关系。
步驟 203、 M2M应用服务器根据 IPv4地址, 将数据包发送给为目的群 组月良务的 GGSN。 具体地, M2M应用 良务器才艮据 IPv4地址寻址到为目的群组 服务的 GGSN, 将数据包发送给 GGSN, 其中可以携带所述 IPv4地址。
图 4所示的实施例中还可以包括:
步骤 204、 GGSN获取数据包中的 IPv4地址, 根据 IPv4地址和群组标 识的对应关系, 获取目的群组的群组标识,将数据包发送给目的群组。 GGSN
MBMS或 CBC的方式。 例如在 MBMS机制下的会话开始流程 ( Ses s ion Star t procedure )中, GGSN向 SGSN发送 MBMS会话开始请求( MBMS Ses s i on Star t Reques t ) 消息 , MBMS会话开始请求消息中可以携带目的群组的群组标识; SGS 可以根据群组标识获取该目的群组 M2M终端的服务区域以及 RNC )根 据 MBMS的处理机制将数据包发送给目的群组。
实施例二中还可以包括: M2M应用服务器获取所述目的群组中某一个 M2M应用终端的标识信息; M2M应用服务器发送给为目的群组服务的 GGSN 的数据包中还携带某一个 M2M应用终端的标识信息。 步驟 203之后还可以 包括: GGSN获取数据包中的 IPv4地址和 M2M应用终端的标识信息, 根据 IPv4地址和群组标识的对应关系, 获取目的群组的群组标识, 将数据包发 送给目的群组中的 M2M应用终端的标识信息对应的 M2M应用终端。
实施例二中, 通过增强或扩展 M2M应用服务器和 GGSN之间的协议栈功 能, 使得 M2M应用服务器下发的数据包中可以携带 M2M应用终端的标识信 息(如 IMS I )。
步骤 204中, 将数据包发送给目的群组中的 M2M应用终端的标识信息 对应的 M2M应用终端具体可以包括: 如果 GGSN中存在 M2M应用终端的上下 文信息, 则可以才艮据上下文信息获取为该 M2M应用终端^^务的核心管理网 元(如 SGSN、 MSC、 或丽 E ), 则 GGSN发起 PDP上下文一次激活流程, 将数 据包发送给所述 M2M应用终端; 如果 GGSN没有该 M2M应用终端的上下文信 息, 则可以才艮据获取的群组标识或 M2M应用终端的终端标识中的至少一项 向签约数据库(如 HLR、 HSS、 或群组签约数据库)或 M2M应用服务器获取 为该 M2M应用终端月良务的核心管理网元(如 SGSN、 MSC、 或 MME ), 发起 PDP 上下文一次激活流程, 将数据包发送给与 M2M应用终端的标识信息对应的 M2M应用终端。
如图 5所示为本发明 M2M应用服务器实施例结构示意图, 包括第一获 取模块 21、 第二获取模块 22和第一发送模块 23 , 其中, 第一获取模块 21 用于获取目的群组的群组标识; 第二获取模块 22与第一获取模块 21连接, 用于根据 IPv6地址前缀和群组标识的对应关系, 获取第一获取模块 21获 取的目的群组的群组标识对应的 IPv6地址前缀; 或者根据 IPv4地址和群 组标识的对应关系, 获取第一获取模块 21获取的目的群组的群组标识对应 的 IPv4地址; 第一发送模块 23与第二获取模块 22连接, 用于根据第二获 取模块 22获取的所述 IPv6地址前缀, 将数据包发送给为目的群组服务的 GGSN, 数据包中携带有 IPv6地址前缀; 或者用于根据所述第二获取模块 22 获取的 IPv4地址,将数据包发送给为目的群组服务的 GGSN,数据包中携带 有 IPv4地址。
在一个实施例中,第一获取模块 21还可以用于获取所述目的群组中 M2M 应用终端的标识, 第二获取模块 22还可以用于根据 IPv6地址的接口标识 和目的群组中各个 M2M应用终端标识的对应关系, 获取 M2M应用终端对应 的 IPv6地址的接口标识; 第一发送模块 23发送的携带 IPv6地址前缀的数 据包中还携带 IPv6地址的接口标识。
在另一个实施例中, 第一获取模块 21还可以用于获取所述目的群组中 某一个 M2M应用终端的终端标识; 第一发送模块 23发送的携带 IPv4地址 的数据包中还携带所述某一个 M2M应用终端的终端标识。
如图 6所示为本发明 GGSN实施例结构示意图, 包括第一接收模块 31、 第三获取模块 32和第二发送模块 33 ,其中,第一接收模块 31用于接收 M2M 应用服务器发送的数据包; 第三获取模块 32与第一接收模块 31连接, 用 于获取第一接收模块 31接收到的数据包中的 IPv6地址前缀, 根据 IPv6地 址前缀和群组标识的对应关系, 获取目的群组的群组标识; 或者用于获取 第一接收模块 31接收到的数据包中的 IPv4地址, 根据 IPv4地址和群组标 识的对应关系, 获取目的群组的群组标识; 第二发送模块 33分别与第三获 取模块 32和第一接收模块 31连接, 根据第三获取模块 32获取的目的群组 的群组标识, 将第一接收模块 31接收到的数据包发送给目的群组。
其中,第一接收模块 31具体可以用于接收包含有 IPv地址前缀和 IPv6 地址的接口标识的数据包; 或者具体可以用于接收包含有 IPv4地址和某一 个 M2M应用终端的标识信息的数据包;
第三获取模块 32具体可以用于获取所述第一接收模块 31接收到的数 据包中的 IPv6地址前缀和 IPv6地址的接口标识, 根据 IPv6地址前缀和群 组标识的对应关系, 以及 I P V 6地址的接口标识和群组中各个 M2M应用终端 标识之间的对应关系 , 获取目的群组的群组标识和所述目的群组中与 IPv6 地址的接口标识对应的 M2M应用终端的终端标识; 或者具体可以用于获取 第一接收模块 31接收到的数据包中的 IPv4地址和某一个 M2M应用终端的 标识信息, 居 IPv4地址和群组标识的对应关系, 获取所述目的群组的群 组标识;
第二发送模块 33具体可以用于根据第三获取模块 32获取的目的群组 的群组标识和目的群组中与 IPv6地址的接口标识对应的 M2M应用终端的终 端标识, 将第一接收模块 31接收到的数据包发送给与 IPv6地址的接口标 识对应的 M2M应用终端; 或者具体可以用于才艮据第三获取模块 32获取的目 的群组的群组标识和某一个 M2M应用终端的标识信息, 将第一接收模块 31 接收到的数据包发送给目的群组中的某一个 M2M应用终端的标识信息对应 的 M2M应用终端。
本发明实施例还提供一种 M2M应用服务器下发数据包的系统, 可以包 括前述实施例中的 M2M应用服务器和 GGSN, 其中第一发送模块与第一接收 模块连接。
本发明提供的各个实施例 , 为 M2M应用中的群组分配一个 IPv6地址前 缀或 IPv4地址, 通过该 IPv6地址前缀或 IPv4地址就获取目的群组的群组 标识,将数据包发送给为群组标识服务的 GGSN, 由 GGSN将数据包发送给目 的群组, 从而能够实现对群组中的 M2M应用终端下发数据包, 节省了 IP地 址资源。
并且, 在数据包中还可以携带 IPv6地址前缀的接口标识或 M2M应用终 终端 , 并且节省了 IP地址资源。
最后应说明的是: 以上实施例仅用以说明本发明的技术方案而非对其 进行限制, 尽管参照较佳实施例对本发明进行了详细的说明, 本领域的普 通技术人员应当理解: 其依然可以对本发明的技术方案进行修改或者等同 替换, 而这些修改或者等同替换亦不能使修改后的技术方案脱离本发明技 术方案的精神和范围。

Claims

权利要求
1、 一种 M2M应用服务器下发数据包的方法, 其特征在于, 包括:
M2M应用 良务器获取目的群组的群组标识;
所述 M2M应用 良务器才艮据 IPv6地址前缀和群组标识的对应关系, 获取 所述目的群组的群组标识对应的 IPv6地址前缀;
所述 M2M应用服务器根据所述 IPv6地址前缀, 将数据包发送给为所述 目的群组服务的 GGSN, 所述数据包中携带 IPv6地址前缀。
2、 根据权利要求 1所述的方法, 其特征在于, 还包括:
所述 GGSN获取所述数据包中的 IPv6地址前缀, >据 IPv6地址前缀和 群组标识的对应关系, 获取所述目的群组的群组标识, 将所述数据包发送 给所述目的群组。
3、 根据权利要求 2所述的方法, 其特征在于, 将所述数据包发送给所 述目的群组具体包括: GGSN向 SGSN发送 MBMS会话开始请求消息,所述 MBMS 会话开始请求消息中携带所述目的群组的群组标识; 所述 SGSN根据所述群 组标识获取所述目的群组的 M2M应用终端的服务区域以及无线网络子系统; 将所述数据包发送给所述目的群组。
4、 根据权利要求 1所述的方法, 其特征在于, 还包括: M2M应用服务 器获取所述目的群组中 M2M应用终端的标识, >据 IPv6地址的接口标识和 目的群组中各个 M2M应用终端标识的对应关系 , 获取所述 M2M应用终端对 应的 IPv6地址的接口标识;
所述 M2M应用服务器发送给为所述目的群组服务的 GGSN的数据包中还 携带 IPv6地址的接口标识。
5、 根据权利要求 4所述的方法, 其特征在于, 还包括:
所述 GGSN获取所述数据包中的 IPv6地址前缀和 IPv6地址的接口标识, 根据 IPv6地址前缀和群组标识的对应关系, 以及 IPv6地址的接口标识和 群组中各个 M2M应用终端标识之间的对应关系 , 获取所述目的群组的群组 标识和所述目的群组中与所述 IPv6地址的接口标识对应的 M2M应用终端的 终端标识, 将所述数据包发送给所述目的群组中与所述 IPv6地址的接口标 识对应的 M2M应用终端。
6、 根据权利要求 5所述的方法, 其特征在于, 将所述数据包发送给所 述目的群组中与所述 IPv6地址的接口标识对应的 M2M应用终端具体包括: 根据上下文信息获取与所述 IPv6地址的接口标识对应的 M2M应用终端服务 的核心管理网元, 所述 GGSN发起 PDP上下文一次激活流程, 将所述数据包 发送给所述与所述 IPv6地址的接口标识对应的 M2M应用终端。
7、 根据权利要求 5所述的方法, 其特征在于, 将所述数据包发送给所 述目的群组中与所述 IPv6地址的接口标识对应的 M2M应用终端具体包括: 所述 GGSN根据所述目的群组的群组标识或与所述 IPv6地址的接口标 识对应的 M2M应用终端的终端标识, 从签约数据库或 M2M应用服务器获取 为与所述 IPv6地址的接口标识对应的 M2M应用终端服务的核心管理网元, 发起 PDP上下文一次激活流程, 将所述数据包发送给与所述 IPv6地址的接 口标识对应 M2M应用终端。
8、 一种 M2M应用服务器下发数据包的方法, 其特征在于, 包括: M2M应用服务器获取目的群组的群组标识;
所述 M2M应用 良务器才艮据 IPv4地址和群组标识的对应关系, 获取所述 目的群组的群组标识对应的 IPv4地址;
所述 M2M应用服务器根据所述 IPv4地址, 将数据包发送给为所述目的 群组服务的 GGSN, 所述数据包中携带 IPv4地址。
9、 根据权利要求 8所述的方法, 其特征在于, 还包括:
所述 GGSN获取所述数据包中的 IPv4地址, 根据 IPv4地址和群组标识 的对应关系, 获取所述目的群组的群组标识, 将所述数据包发送给所述目 的群组。
10、 根据权利要求 9 所述的方法, 其特征在于, 将所述数据包发送给 所述目的群组具体包括: GGSN向 SGSN发送 MBMS会话开始请求消息, 所述 MBMS会话开始请求消息中携带所述目的群组的群组标识;所述 SGSN根据所 述群组标识获取所述目的群组的 M2M应用终端的月良务区域以及无线网络子 系统; 将所述数据包发送给所述目的群组。
11、 据权利要求 8所述的方法, 其特征在于, 还包括: 所述 M2M应 用服务器获取所述目的群組中某一个 M2M应用终端的标识信息; 所述 M2M 应用服务器发送给为所述目的群组服务的 GGSN的数据包中还携带所述某一 个 M2M应用终端的标识信息。
12、 根据权利要求 11所述的方法, 其特征在于, 还包括:
所述 GGSN获取所述数据包中的 IPv4地址和某一个 M2M应用终端的标 识信息, 4艮据 IPv4地址和群组标识的对应关系, 获取所述目的群组的群组 标识, 将所述数据包发送给所述目的群组中与所述某一个 M2M应用终端的 标识信息对应的 M2M应用终端。
13、 根据权利要求 12所述的方法, 其特征在于, 将所述数据包发送给 所述目的群组中与所述某一个 M2M应用终端的标识信息对应的 M2M应用终 端具体包括:
才艮据上下文信息获取与所述 IPv6地址的接口标识对应的 M2M应用终端 服务的核心管理网元; 所述 GGSN发起 PDP上下文一次激活流程, 将所述数 据包发送给所述 M2M应用终端。
14、 根据权利要求 12所述的方法, 其特征在于, 将所述数据包发送给 所述目的群组中与所述某一个 M2M应用终端的标识信息对应的 M2M应用终 端具体包括:
所述 GGSN 据所述目的群组的群组标识或某一个 M2M应用终端的终端 标识, 从签约数据库或 M2M应用服务器获取为所述某一个 M2M应用终端服 务的核心管理网元, 发起 PDP上下文一次激活流程, 将所述数据包发送给 所述某一个 M2M应用终端。
15、 一种 M2M应用服务器, 其特征在于, 包括:
第一获取模块 , 用于获取目的群组的群组标识;
第二获取模块, 与所述第一获取模块连接, 用于根据 IPv6地址前缀和 群组标识的对应关系 , 获取所述第一获取模块获取的目的群组的群组标识 对应的 IPv6地址前缀; 或者 居 IPv4地址和群组标识的对应关系, 获取 所述第一获取模块获取的所述目的群組的群組标识对应的 IPv4地址;
第一发送模块, 与所述第二获取模块连接, 用于根据所述第二获取模 块获取的所述 IPv6地址前缀,将数据包发送给为所述目的群组服务的 GGSN, 所述数据包中携带 IPv6地址前缀; 或者用于根据所述第二获取模块获取的 IPv4地址, 将数据包发送给为所述目的群组服务的 GGSN, 所述数据包中携 带 IPv4地址。
16、 根据权利要求 15所述的 M2M应用服务器, 其特征在于, 所述第一 获取模块还用于获取所述目的群组中 M2M应用终端的标识;
所述第二获取模块还用于根据 IPv6地址的接口标识和目的群组中各个 M2M应用终端标识的对应关系 , 获取所述 M2M应用终端对应的 IPv6地址的 接口标识;
所述第一发送模块发送的携带 IPv6 地址前缀的数据包中还携带 IPv6 地址的接口标识。
17、 根据权利要求 15所述的 M2M应用服务器, 其特征在于,
所述第一获取模块还用于获取所述目的群组中某一个 M2M应用终端的 终端标识;
所述第一发送模块发送的携带 IPv4地址的数据包中还携带所述某一个 M2M应用终端的终端标识。
18、 一种 GGSN, 其特征在于, 包括:
第一接收模块, 用于接收 M2M应用服务器发送的数据包;
第三获取模块, 与所述第一接收模块连接, 用于获取所述第一接收模 块接收到的数据包中的 IPv6地址前缀, 根据 IPv6地址前缀和群组标识的 对应关系, 获取目的群组的群组标识; 或者用于获取所述第一接收模块接 收到的数据包中的 IPv4地址, 才 据 IPv4地址和群组标识的对应关系, 获 取目的群组的群组标识;
第二发送模块, 分别与所述第三获取模块和所述第一接收模块连接, 根据所述第三获取模块获取的所述目的群組的群組标识, 将所述第一接收 模块接收到的数据包发送给所述目的群组。
19、根据权利要求 18所述的 GGSN, 其特征在于, 所述第一接收模块具 体用于接收包含有 IPv6地址前缀和 IPv6地址的接口标识的数据包; 或者 具体用于接收包含有 IPv4 地址和某一个 M2M应用终端的标识信息的数据 包;
所述第三获取模块具体用于获取所述第一接收模块接收到的数据包中 的 IPv6地址前缀和 IPv6地址的接口标识, 根据 IPv6地址前缀和群组标识 的对应关系, 以及 IPv6地址的接口标识和群组中各个 M2M应用终端标识之 间的对应关系, 获取所述目的群组的群组标识和所述目的群组中与所述 IPv6地址的接口标识对应的 M2M应用终端的终端标识; 或者具体用于获取 所述第一接收模块接收到的数据包中的 IPv4地址和某一个 M2M应用终端的 标识信息, 4艮据 IPv4地址和群组标识的对应关系, 获取所述目的群组的群 组标识;
所述第二发送模块具体用于根据所述第三获取模块获取的所述目的群 组的群组标识和所述目的群组中与所述 IPv6地址的接口标识对应的 M2M应 用终端的终端标识, 将所述数据包发送给与所述 IPv6地址的接口标识对应 的 M2M应用终端; 或者具体用于根据所述第三获取模块获取的所述目的群 组的群组标识和某一个 M2M应用终端的标识信息, 将所述数据包发送给所 述目的群组中的所述某一个 M2M应用终端的标识信息对应的 M2M应用终端。
20、 一种 M2M应用服务器下发数据包的系统, 其特征在于, 包括如权 利要求 15-17中任一权利要求所述的 M2M应用服务器和如权利要求 18或 19 所述的 GGSN, 所述第一发送模块与所述第一接收模块连接。
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