WO2009056026A1 - Procédé et système pour réaliser le pousser hors ligne, et passerelle de protocole d'application sans fil - Google Patents

Procédé et système pour réaliser le pousser hors ligne, et passerelle de protocole d'application sans fil Download PDF

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Publication number
WO2009056026A1
WO2009056026A1 PCT/CN2008/072594 CN2008072594W WO2009056026A1 WO 2009056026 A1 WO2009056026 A1 WO 2009056026A1 CN 2008072594 W CN2008072594 W CN 2008072594W WO 2009056026 A1 WO2009056026 A1 WO 2009056026A1
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WIPO (PCT)
Prior art keywords
push
mobile terminal
message
activation
offline
Prior art date
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PCT/CN2008/072594
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English (en)
French (fr)
Inventor
Shouping Li
Original Assignee
Huawei Technologies Co., Ltd.
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Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2009056026A1 publication Critical patent/WO2009056026A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/12Setup of transport tunnels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/54Presence management, e.g. monitoring or registration for receipt of user log-on information, or the connection status of the users
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12Messaging; Mailboxes; Announcements
    • H04W4/14Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/08Upper layer protocols
    • H04W80/12Application layer protocols, e.g. WAP [Wireless Application Protocol]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16Gateway arrangements

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to an offline push (Push) implementation method, a system, and a Wireless Application Protocol (WAP) gateway.
  • Push offline push
  • WAP Wireless Application Protocol
  • Push technology is a mechanism built on the client and server, which is the technology that the server actively sends information to the client. Compared with the traditional "Pull" technology, the main difference is that Push technology is the server to actively send information to the client, while Pull technology is the client to actively request information from the server.
  • the main advantage of Pull technology is the initiative and timeliness of information transmission.
  • Offline Push means that when the client is offline, the server sends a Push message to the client.
  • Figure 1 is a flow chart of an existing offline Push scheme.
  • Step 101 The service provider (SP) delivers the Push message to the WAP gateway (GW, Gateway).
  • WAP gateway GW, Gateway
  • Steps 102 to 103 the WAP gateway finds that the current mobile terminal is offline, and sends the Push message to the short message service center (SMS), and the SMSC sends a prompt message to the mobile terminal, where the prompt message is carried.
  • Prompt information such as a Universal Resource Locator (URL, Uniform Resource Locator) connection.
  • Step 104 105 After receiving the prompting short message, the mobile terminal sends a Get (Get) message to the SP through the WAP gateway, requesting the related Push message.
  • Steps 106-107 the SP returns a response (Response) message to the mobile terminal via the WAP gateway, and sends a Push message to the mobile terminal.
  • response Response
  • the embodiment of the invention provides an offline Push implementation method, which can shorten the transmission time of the offline Push message and reduce the burden of the SMSC.
  • the embodiment of the invention further provides a system and a WAP gateway, which can shorten the sending time of the offline Push message and reduce the burden of the SMSC.
  • An offline Push implementation method including: determining whether a mobile terminal that receives a Push message is online, and if online, transmitting a Push message to the mobile terminal;
  • the network side is notified to initiate a packet data protocol (PDP) context activation process, and the Push message is sent to the mobile terminal that is successfully activated.
  • PDP packet data protocol
  • An offline Push implementation system including:
  • the WAP gateway is configured to determine whether the mobile terminal that receives the Push message is online, and if yes, deliver the Push message to the mobile terminal; otherwise, notify the GGSN (Gateway General Packet Radio Service Support Node) Initiating a PDP context activation process, and delivering the Push message to the mobile terminal that is successfully activated;
  • GGSN General Packet Radio Service Support Node
  • the GGSN is configured to receive the notification sent by the WAP gateway, and the SGSN (Service General Packet Radio Service Support Node) performs a PDP context activation process, and creates a PDP context.
  • SGSN Service General Packet Radio Service Support Node
  • the SGSN is configured to receive the command sent by the GGSN and perform a PDP context activation process.
  • a WAP gateway including:
  • a determining module configured to determine whether the mobile terminal that receives the Push message is online, and if yes, send a Push message to the sending module; otherwise, send an activation command to the activation module;
  • An activation module configured to notify the network side to initiate a PDP context activation process when the judgment result of the determining module is that the mobile terminal is offline, and send an activation success message to the sending module after the activation succeeds;
  • the sending module is configured to send a Push message to the mobile terminal when the judgment result of the determining module is that the mobile terminal is online, or when the activation success message is received from the activation module.
  • the WAP gateway notifies the network side to initiate a PDP context activation process, and the Push message is sent to the mobile terminal with successful activation, and the offline Push is reduced.
  • the short message notification process shortens the sending time of offline Push messages and reduces the burden on the SMSC.
  • Figure 1 is a flow chart of an existing offline Push scheme
  • FIG. 2 is a flowchart of a method for implementing an offline Push according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a specific implementation of an offline Push according to an embodiment of the present invention
  • FIG. 4 is an offline diagram of a PDP context activation failure according to an embodiment of the present invention
  • Push implementation flow chart
  • FIG. 5 is a schematic structural diagram of a WAP gateway according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of an offline Push implementation method according to an embodiment of the present invention.
  • Step 201 Determine whether the mobile terminal that receives the Push message is online. If online, perform step 202; otherwise, perform step 203.
  • Step 202 Send a Push message to the mobile terminal, and end the current process.
  • Step 203 The network side is notified to initiate a PDP context activation process, and the Push message is sent to the mobile terminal that is successfully activated.
  • the executor in the foregoing embodiment may be a WAP gateway, or may be other devices in the entire network, such as a GGSN, an SGSN, etc., in the embodiment of the present invention,
  • the main body is a WAP gateway as an example for description.
  • the WAP gateway may initiate disconnection, and notify the GGSN to initiate a PDP context deactivation process.
  • the step of informing the network side to initiate the PDP context activation process may include: a packet data unit) message, and sending the PDP PDU message to the GGSN on the network side.
  • FIG. 3 is a flowchart of a specific implementation manner of off-line Push according to an embodiment of the present invention.
  • Step 301 The SP sends a Push message to the WAP gateway.
  • the Push message may be without the user information, and the WAP gateway selects the mobile terminal by itself, or the Push message may be predefined by the WAP gateway.
  • Step 302 The WAP gateway determines whether the mobile terminal is online. If online, step 315 is performed; otherwise, step 303 is performed.
  • Step 303 The WAP gateway constructs a PDP PDU message according to the number of the mobile terminal, and sends a PDP PDU message to the GGSN, informing the GGSN to initiate a network side PDP context activation process.
  • Step 304 the GGSN receives the PDP PDU message, and sends a GPRS Send Route Information Information (GPRS) message to the Home Location Register (HLR, Home Location Register), and takes the address of the SGSN, where the message includes the international mobile station identification number ( IMSI, International Mobile Station Identification) information.
  • GPRS GPRS Send Route Information Information
  • Step 305 If the mobile terminal is reachable, the HLR sends a GPRS Send Routeing Information for GPRS Ack message, and returns an address of the SGSN, where the message includes the IMSI information and the SGSN address (Address); if the mobile terminal is unreachable , return an error, if the error is not "No Paging Response", the HLR adds this GGSN to the user's GGSN list. ( GGSN-List ) ;
  • Step 306 If the SGSN exists or the error is "No Paging Response", the GGSN sends a PDU Notification Request message to the SGSN, where the message includes the IMSI, the PDP type, the PDP Address, and the access point name. (APN, Access Point Name).
  • Step 307 The SGSN returns a PDU Notification Response, and confirms that the mobile terminal is required to activate the PDP context procedure.
  • Step 308 The SGSN sends a Request PDP Context Activation message to the mobile terminal, requesting the mobile terminal to initiate an activation PDP Context request, where the message includes a processing identifier (TI, Transaction Identifier), a PDP Type, a PDP Address, and an APN.
  • TI processing identifier
  • PDP Type PDP Type
  • PDP Address PDN address
  • APN APN
  • Step 309 The mobile terminal initiates a PDP Context activation request, and sends a PDP Context Activate Request message to the SGSN.
  • Step 310 The SGSN verifies the validity of the Activate PDP Context Request by using PDP Type (optional), PDP Address (optional), Access Point Name (optional), and PDP Context subscription data; the SGSN assigns a tunnel end identifier to the PDP Context. (TEID), if a dynamic address is used, the GGSN is required to allocate a dynamic address.
  • TEID tunnel end identifier
  • the SGSN selects an APN according to a certain algorithm, and the SGSN initiates a Create PDP Context Request to the GGSN;
  • Step 311 The GGSN allocates a dynamic address, a charging ID, a quality of service (QoS), and the like to the PDP Context, and sends an Accounting-Request start message to the WAP gateway.
  • QoS quality of service
  • Step 312 The GGSN initiates a CDPATE PDP Context RESPONSE to the SGSN, and carries a Network Layer Service Access Point Identifier (NSAPI), PDP ADDR, GGSN ADDR, TEID, QoS and other information;
  • NSAPI Network Layer Service Access Point Identifier
  • Step 313 The WAP gateway sends an Accounting-Response start message to the GGSN. Steps 313 and 312 may reverse the order according to different GGSN implementation policies.
  • Step 314 The SGSN sends an Activate PDP Context Accept message to the mobile terminal, and sends the QoS and other information to the mobile terminal.
  • Step 315 The WAP gateway sends the Push message to the mobile terminal according to a certain encoding format.
  • Step 316 After the content is delivered, the WAP gateway sends a Disconnect Request message, requesting the GGSN to disconnect from the mobile terminal.
  • Step 317 The GGSN sends a Delete PDP Context Request message to the SGSN, where the message includes a TEID and an NSAPL TI.
  • Step 319 The SGSN sends a Deactivate PDP Context Request message to the mobile terminal.
  • Step 320 The mobile terminal deletes the local PDP Context, and returns a PDP context deactivate PDP Context Accept message to the SGSN.
  • Step 321 The SGSN sends a Delete PDP Context Response message to the GGSN.
  • the GGSN receives the message, if the mobile terminal is assigned a dynamic address, the dynamic address may be released for use by other mobile terminals, and the SGSN sends and deletes.
  • the PDP context response does not have to wait for the PDP context of the mobile terminal to be deactivated.
  • the WAP gateway directly sends the Push message to the mobile terminal with successful activation. End.
  • the PDP context activation fails.
  • the WAP gateway determines whether the Push message needs to be cached according to the configuration. If the cache does not need to be cached, the Push message is directly deleted, and the current process is ended. If the cache is required, the Push message is cached and continues to be repeated after a preset period of time. The step of judging the mobile terminal is performed until the Push message is sent out, or until the number of times the network side initiates the activation process is notified to exceed the preset threshold value, the Push message is deleted, and the current process is ended.
  • FIG. 4 is a flowchart of an off-line Push implementation when a PDP context activation fails in an embodiment of the present invention.
  • Step 401 The WAP gateway receives the Push message sent by the SP, where the Push message may be without the mobile terminal information, and the WAP gateway selects the mobile terminal by itself; or the WAP gateway may pre-generate the content of the Push message.
  • Step 402 Parse the content entity of the Push message, and obtain the address information therein.
  • Step 403 Determine whether the mobile terminal is online. If online, perform step 404; otherwise, perform step 405.
  • Step 404 The WAP gateway sends a Push message to the mobile terminal, and the current process ends.
  • Step 405 The WAP gateway constructs a PDP PDU message according to the number of the mobile terminal, and sends the PDP PDU message to the GGSN to notify the GGSN to initiate a PDP context activation process.
  • step 406 it is determined whether the activation is successful. If yes, step 407 is performed; otherwise, step 408 is performed.
  • Step 407 The WAP gateway sends a Push message to the mobile terminal that successfully activates, and ends the current process.
  • Step 408 The WAP gateway determines whether the Push message needs to be cached according to the configuration. If not, go to Step 409. If necessary, go to Step 410.
  • Step 409 Store the failure information, delete the Push message, and end the current process.
  • Step 410 The Push message is cached, and after step 403 is performed, the STOP message is sent to the mobile terminal.
  • the threshold value may be set in advance. When the number of attempts exceeds the threshold, that is, when the WAP gateway notifies the network side that the number of times the PDP context activation process is initiated exceeds the threshold, When the mobile terminal is still not activated successfully, the Push message is no longer cached, but the Push message is deleted, and the current process is ended.
  • the mobile terminal is determined to be online. If the mobile terminal is online, the Push message is sent. If the PDP PDU is configured, the PDP context is activated. If the activation succeeds, the Push message is sent. If the activation fails, the related information is recorded, and the attempt is continued until the mobile terminal corresponding to the Push message is all tried, and the Push message sending process is ended.
  • An embodiment of the present invention further provides an offline Push implementation system, including:
  • the WAP gateway is configured to determine whether the mobile terminal that receives the Push message is online. If the mobile terminal is online, the Push message is sent to the mobile terminal. Otherwise, the GGSN is notified to initiate the PDP context activation process, and the Push message is sent to the activated device. a mobile terminal; the GGSN, configured to receive the notification sent by the WAP gateway, and the command service universal wireless service support node SGSN performs a PDP context activation process, and creates a PDP context;
  • the SGSN is configured to receive the command sent by the GGSN to perform a PDP context activation process.
  • FIG. 5 is a schematic structural diagram of a WAP gateway according to an embodiment of the present invention.
  • the WAP gateway includes:
  • the determining module 510 is configured to determine whether the mobile terminal that receives the Push message is online; the activation module 530 is configured to: when the determining result of the determining module 510 is that the mobile terminal is not When the line is online, the network side is notified to initiate a PDP context activation process, and after the activation is successful, an activation success message is sent to the sending module 520.
  • the sending module 520 is configured to send the Push message to the mobile terminal when the judgment result of the determining module 510 is that the mobile terminal is online, or when the activation success message is received from the activation module 530.
  • the WAP gateway may further include: a disconnection initiating module 540, configured to initiate a disconnection after the sending module 520 delivers the Push message to the mobile terminal that is successfully activated, and notify the network side to initiate a PDP context deactivation process.
  • a disconnection initiating module 540 configured to initiate a disconnection after the sending module 520 delivers the Push message to the mobile terminal that is successfully activated, and notify the network side to initiate a PDP context deactivation process.
  • the activation module 530 may include:
  • a PDP PDU message construction submodule 531 configured to construct a PDP PDU message according to the number of the mobile terminal
  • the PDP PDU message sending sub-module 532 is configured to send the constructed PDP PDU message to the GGSN on the network side, and notify the network side to initiate a PDP context activation process.
  • the sending submodule 533 is configured to send an activation success message to the sending module 520 after the activation is successful.
  • the offline Push implementation method, system, and WAP gateway provided by the present invention, when the mobile terminal is offline, the WAP gateway notifies the network side to initiate a PDP context activation process, and uses the existing network side to initiate a PDP context activation process.
  • the mobile terminal is activated, and then the Push message is directly sent to the mobile terminal, which reduces the short message notification process, which can shorten the sending time of the Push message and reduce the burden on the SMSC.
  • the WAP gateway can initiate a disconnection and notify the GGSN to send a PDP context deactivation process.
  • the WAP gateway can cache the Push message, and can flexibly configure the sending policy to fully utilize the network resources to maximize the operator's profit.
  • the Push message sent by the SP may be without the mobile terminal information, and the WAP gateway may select the mobile terminal by itself; or may be the WAP gateway. Predefine the content of the Push message.

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  • Computer Networks & Wireless Communication (AREA)
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Description

一种离线推送实现方法、 系统及无线应用协议网关 技术领域
本发明涉及移动通信领域, 特别涉及一种离线推送(Push )实现 方法、 系统及无线应用协议 ( WAP , Wireless Application Protocol )网 关。 背景技术
Push技术是一种建立在客户机与服务器上的机制, 就是由服务 器主动将信息发往客户机的技术。 与传统的 "拉" (Pull )技术相比, 其主要区别在于 Push技术是由服务器主动向客户机发送信息,而 Pull 技术则是由客户机主动向服务器请求信息。 Pull技术的主要优势在于 信息发送的主动性和及时性。
离线 Push就是当客户机不在线时,服务器向客户机发送 Push消 息。 参见图 1 , 图 1为现有的离线 Push方案流程图。
步骤 101 , 服务供应商(SP, Service Provider )将 Push消息下发 给 WAP网关 ( GW, Gateway )。
步骤 102~103 , WAP网关发现当前移动终端不在线, 则将 Push 消息下发给短消息服务中心 ( SMSC, Short Message Service Certer ), SMSC向移动终端发送一条提示短消息,该提示短消息中携带提示信 息, 比如通用资源定位器(URL, Uniform Resource Locator )连接。
步骤 104 105 , 移动终端收到提示短消息后, 通过 WAP网关向 SP发送获取( Get ) 消息, 请求相关的 Push消息。
步骤 106~107 , SP经 WAP网关向移动终端返回响应( Response ) 消息, 并向移动终端下发 Push消息。
上述步骤可以看出, 现有的离线 Push方案要经过 SMSC, 釆用 短消息通知移动终端, 由移动终端重新向 SP获取 Push消息,使得离 线 Push消息的发送时间较长, 并且还会加重 SMSC的负担。 发明内容
本发明实施例提出一种离线 Push实现方法, 该方法能够缩短离 线 Push消息的发送时间, 减轻 SMSC的负担。
本发明实施例还提出一种系统和 WAP网关, 能够缩短离线 Push 消息的发送时间, 减轻 SMSC的负担。
本发明的技术方案是这样实现的:
一种离线 Push实现方法, 包括: 判断接收 Push消息的移动终端 是否在线, 如果在线, 则将 Push消息下发至所述移动终端;
否则, 通知网络侧发起包数据协议 ( PDP , Packet Data Protocol ) 上下文激活过程, 将 Push消息下发至激活成功的所述移动终端。
一种离线 Push实现系统, 包括:
WAP网关, 用于判断接收 Push消息的移动终端是否在线, 如果 在线,则将 Push消息下发至所述移动终端;否则,通知 GGSN( Gateway General Packet Radio Service Support Node , 通用分组无线业务网关支 持节点)发起 PDP上下文激活过程, 将 Push消息下发至激活成功的 所述移动终端;
GGSN,用于接收 WAP网关发送的所述通知,命令 SGSN( Service General Packet Radio Service Support Node, 月良务通用分组无线业务支 持节点)执行 PDP上下文激活过程, 并创建 PDP上下文;
SGSN,用于接收 GGSN发送的所述命令,执行 PDP上下文激活 过程。
一种 WAP网关, 包括:
判断模块, 用于判断接收 Push消息的移动终端是否在线, 如果 在线, 则向发送模块发送下发 Push消息命令; 否则, 向激活模块发 送激活命令;
激活模块, 用于当判断模块的判断结果为移动终端不在线时, 通 知网络侧发起 PDP上下文激活过程, 在激活成功后将激活成功消息 发送至发送模块; 发送模块, 用于当判断模块的判断结果为移动终端在线时、 或者 从激活模块接收到激活成功消息时, 将 Push消息下发至移动终端。
可见, 本发明实施例提出的方法、 系统及 WAP网关, 当移动终 端不在线时, 由 WAP网关通知网络侧发起 PDP上下文激活过程, 将 Push消息下发至激活成功的移动终端, 减少离线 Push的短消息通知 流程,从而缩短了离线 Push消息的发送时间,减轻了 SMSC的负担。 附图说明
图 1为现有的离线 Push方案流程图;
图 2为本发明实施例一种离线 Push实现方法的流程图; 图 3为本发明实施例一种离线 Push的具体实现方式流程图; 图 4为本发明实施例出现 PDP上下文激活失败时的离线 Push实 现流程图;
图 5为本发明实施例 WAP网关的结构示意图。
具体实施方式
为使本发明的发明目的、技术方案及效果更加清楚明确, 以下参 照附图并举具体实施例进行详细说明。
本发明实施例提出一种离线 Push实现方法,参见图 2, 图 2为本 发明实施例一种离线 Push实现方法的流程图。
步骤 201 , 判断接收 Push消息的移动终端是否在线, 如果在线, 则执行步骤 202; 否则执行步骤 203。
步骤 202, 将 Push消息下发至所述移动终端, 结束当前流程。 步骤 203 , 通知网络侧发起 PDP上下文激活过程, 将 Push消息 下发至激活成功的所述移动终端。
上述实施例中的执行主体可以为 WAP网关, 亦可以为整个网络 中的其他设备, 如 GGSN、 SGSN等, 在本发明实施例中, 将以执行 主体为 WAP网关为例来进行描述。
所述将 Push消息下发至激活成功的移动终端之后可以进一步包 括: WAP网关发起断连, 通知 GGSN发起 PDP上下文去激活过程。
所述通知网络侧发起 PDP 上下文激活过程的步骤可以包括: 包数据单元 ) 消息, 将所述 PDP PDU消息发送至网络侧的 GGSN。
以下介绍详细实现过程。 参见图 3 , 图 3为本发明实施例一种离 线 Push的具体实现方式流程图。
步骤 301 , SP向 WAP网关发送 Push消息; 此时 Push消息可以不带 用户信息, 由 WAP网关自行选择移动终端, 也可以由 WAP网关预先 定义 Push消息。
步骤 302, WAP网关判断移动终端是否在线, 如果在线, 则执行 步骤 315; 否则, 执行步骤 303。
步骤 303 , WAP网关根据移动终端的号码构造 PDP PDU消息, 将 PDP PDU消息发送至 GGSN, 通知 GGSN发起网络侧 PDP上下文激活 过程。
步骤 304, GGSN收到 PDP PDU消息, 向归属位置寄存器 (HLR, Home Location Register )发送 GPRS的发送路由信息 ( Send Routeing Information for GPRS ) 消息, 取 SGSN的地址, 该消息包含国际移动 台识别号 ( IMSI, International Mobile Station Identification )信息。
步骤 305 , 如果移动终端可达, 则 HLR发送 GPRS的发送路由消息 应答( Send Routeing Information for GPRS Ack ) 消息 , 返回 SGSN 的地址, 该消息包含 IMSI信息、 SGSN地址(Address ) ; 如果移动 终端不可达, 则返回错误, 如果错误不是 "无事件响应 (No Paging Response ) ,,, HLR将此 GGSN添加到该用户 的 GGSN列表 ( GGSN-List ) ;
步骤 306, 如 SGSN存在或错误是 "No Paging Response", 则 GGSN 发送 PDU通知请求( PDU Notification Request ) 消息, 通知给 SGSN, 该消息包含 IMSI、 PDP种类( Type )、 PDP Address、接入点名称( APN, Access Point Name ) 。
步骤 307 , SGSN返回 PDU通知应答( PDU Notification Response ) , 确认将要请求移动终端激活 PDP 上下文过程;
步骤 308, SGSN向移动终端发送请求 PDP 上下文激活 (Request PDP Context Activation ) 消息, 要求移动终端发起激活 PDP Context 请求, 该消息包含处理标识 ( TI, Transaction Identifier ) 、 PDP Type、 PDP Address, APN。
步骤 309, 移动终端发起 PDP Context激活请求, 向 SGSN发送 PDP 上下文激活请求 ( PDP Context Activate Request ) 消息;
步骤 310, SGSN通过使用 PDP Type (可选)、 PDP Address (可 选) 、 Access Point Name (可选 )和 PDP Context签约数据来验证 Activate PDP Context Request的有效性; SGSN给 PDP Context分配隧道 终点标识(TEID ) , 如果使用动态地址, 则要求 GGSN分配一个动态 地址。 SGSN根据一定的算法选择一个 APN, SGSN向 GGSN发起创建 PDP上下文请求( Create PDP Context Request ) ;
步骤 311 , GGSN为 PDP Context分配动态地址、 计费 ID、 协商服 务质量(QoS, Quality of Service )等, 向 WAP网关发送计费请求开 始 ( Accounting-Request start ) 消息;
步骤 312, GGSN向 SGSN发起创建 PDP上下文响应( CREATE PDP Context RESPONSE ) ,携带网络层服务接入点标识( NSAPI, Network layer Service Access Point Identifier ) 、 PDP ADDR、 GGSN ADDR、 TEID、 QoS等信息;
步骤 313 , WAP 网 关 向 GGSN发送计 费 响 应 开 始 ( Accounting-Response start ) 消息; 步骤 313和步骤 312根据 GGSN实 现策略的不同可以颠倒顺序。
步骤 314 , SGSN向移动终端发送激活 PDP上下文接受 (Activate PDP Context Accept ) 消息, 将 QoS等信息下发给移动终端;
步骤 315 , WAP网关将 Push消息按照一定的编码格式下发给移动 终端;
步骤 316, WAP网关将内容下发完毕后发送断连请求(Disconnect Request ) 消息, 要求 GGSN断开与移动终端连接;
步骤 317 , GGSN向 SGSN发送删除 PDP上下文请求 (Delete PDP Context Request ) 消息, 该消息包含 TEID、 NSAPL TI。
Figure imgf000008_0001
步骤 319 , SGSN向移动终端发送去激活请求 (Deactivate PDP Context Request ) 消息。
步骤 320, 移动终端删除本地的 PDP Context, 向 SGSN返回 PDP上 下文去激活接受 ( Deactivate PDP Context Accept ) 消息。
步骤 321 , SGSN向 GGSN发送删除 PDP 上下文响应 ( Delete PDP Context Response )消息, GGSN收到此消息后, 如果为移动终端分配 了动态地址, 可以释放此动态地址给其他的移动终端使用, SGSN发 送删除 PDP上下文响应不必等待收到移动终端的 PDP上下文去激活接 上述图 3所述的离线 Push的实现流程中, GGSN发起 PDP上下 文激活过程后, WAP网关直接将 Push消息下发至激活成功的移动终 端。 但是, 在实际实现过程中, 有可能出现 PDP上下文激活失败的 情况。 如果激活失败, WAP网关根据配置情况判断是否需要将 Push 消息緩存, 不需要緩存则直接删除 Push消息, 结束当前流程; 如果 需要緩存, 则将 Push消息緩存, 经过预先设定的时间段之后继续重 复判断移动终端的步骤, 直到将 Push消息发送出去, 或者直到通知 网络侧发起激活过程的次数超过预先设定的门限值时删除 Push 消 息, 结束当前流程。
以下详细介绍出现 PDP上下文激活失败时的离线 Push 实现过 程,参见图 4, 图 4为本发明实施例出现 PDP上下文激活失败时的离 线 Push实现流程图。
步骤 401 , WAP网关收到 SP发送的 Push消息, 此时的 Push消 息可以不带移动终端信息, 由 WAP网关自行选择移动终端; 也可以 由 WAP网关预先生成 Push消息的内容。
步骤 402, 解析 Push消息的内容实体, 获取其中的地址信息。 步骤 403 , 判断移动终端是否在线, 如果在线, 则执行步骤 404; 否则, 执行步骤 405。
步骤 404, WAP网关向移动终端下发 Push消息, 结束当前流程。 步骤 405, WAP网关根据移动终端的号码构造 PDP PDU消息, 下发给 GGSN, 通知 GGSN发起 PDP上下文激活过程。
步骤 406, 判断是否激活成功, 如果是, 则执行步骤 407; 否则, 执行步骤 408。
步骤 407, WAP网关向激活成功的移动终端下发 Push消息, 结 束当前流程。
步骤 408, WAP网关根据配置情况判断是否需要緩存 Push消息, 如果不需要, 则执行步骤 409; 如果需要, 则执行步骤 410。 步骤 409, 存储下发失败信息, 删除 Push消息, 结束当前流程。 步骤 410, 緩存 Push消息, 经过预先设定的时间段之后继续执 行步骤 403 , 重新尝试向移动终端下发 Push消息。 为避免不断重复 尝试而加重系统负担, 可以预先设定门限值, 当尝试的次数超过门限 值时, 也就是说, 当 WAP网关通知网络侧发起 PDP上下文激活过程 的次数超出门限值, 而移动终端仍未被激活成功时, 不再緩存 Push 消息, 而是将 Push消息删除, 结束当前流程。
另外, 接收 Push消息的移动终端可能有多个, 这种情况下逐个 判断这些移动终端是否在线, 如果在线则直接发送 Push消息; 否则 构造 PDP PDU消息进行 PDP上下文激活, 激活成功则下发 Push消 息, 激活失败则纪录相关信息, 继续尝试发送, 直到该 Push消息对 应的移动终端被全部尝试完毕, 结束 Push消息发送流程。
本发明实施例还提出一种离线 Push实现系统, 包括:
WAP网关, 用于判断接收 Push消息的移动终端是否在线, 如果 在线, 则将 Push消息下发至所述移动终端; 否则, 通知 GGSN发起 PDP上下文激活过程,将 Push消息下发至激活成功的所述移动终端; GGSN, 用于接收 WAP 网关发送的所述通知, 命令服务通用无 线业务支持节点 SGSN执行 PDP上下文激活过程, 并创建 PDP上下 文;
SGSN, 用于接收 GGSN发送的所述命令,执行 PDP上下文激活 过程。
本发明实施例还提出一种 WAP网关, 参见图 5 , 图 5为本发明 实施例 WAP网关的结构示意图。 该 WAP网关包括:
判断模块 510, 用于判断接收 Push消息的移动终端是否在线; 激活模块 530, 用于当判断模块 510的判断结果为移动终端不在 线时, 通知网络侧发起 PDP上下文激活过程, 在激活成功后将激活 成功消息发送至发送模块 520。
发送模块 520, 用于当判断模块 510的判断结果为移动终端在线 时、 或者从激活模块 530接收到激活成功消息时, 将 Push消息下发 至移动终端。
该 WAP网关还可以进一步包括: 断连发起模块 540, 用于在发 送模块 520将 Push消息下发至激活成功的移动终端之后,发起断连, 通知网络侧发起 PDP上下文去激活过程。
上述 WAP网关中, 所述激活模块 530可以包括:
PDP PDU 消息构造子模块 531 , 用于根据移动终端的号码构造 PDP PDU消息;
PDP PDU消息发送子模块 532, 用于将构造的 PDP PDU消息发 送至网络侧的 GGSN , 通知网络侧发起 PDP上下文激活过程;
发送子模块 533 , 用于在在激活成功后将激活成功消息发送至发 送模块 520。
综上所述,本发明提出的离线 Push实现方法、系统及 WAP网关, 当移动终端不在线时, 由 WAP网关通知网络侧发起 PDP上下文激活 过程, 利用现有的网络侧发起 PDP上下文激活过程将移动终端激活, 然后将 Push消息直接下发给移动终端, 减少了短消息通知流程, 这 样能够缩短 Push消息的发送时间, 并且减轻 SMSC的负担。 下发成 功后, WAP网关能够主动发起断连, 通知 GGSN发送 PDP上下文去 激活过程。 并且, 本发明实施例中, 如果激活失败, WAP 网关能够 对 Push消息进行緩存, 可以灵活配置发送策略, 充分利用网络资源, 实现运营商的利润最大化。 最后, SP下发的 Push消息中可以不带移 动终端信息, 由 WAP网关自行选择移动终端; 也可以由 WAP网关 预先定义 Push消息的内容。 综上所述, 以上仅为对本发明精神的展示, 而非用于限制本发明 的保护范围。 凡在本发明的精神和原则之内, 所作的任何修改、 等同 替换、 改进等, 均应包含在本发明的保护范围之内。

Claims

权利要求
1、 一种离线推送 Push实现方法, 其特征在于, 所述方法包括: 判断接收 Push消息的移动终端是否在线, 如果在线, 则将 Push消息 下发至所述移动终端;
否则,通知网络侧发起包数据协议 PDP上下文激活过程,将 Push 消息下发至激活成功的所述移动终端。
2、 根据权利要求 1所述离线推送 Push实现方法, 其特征在于, 还包括: 无线应用协议 WAP网关发起断连, 通知通用分组无线业务 网关支持节点 GGSN发起 PDP上下文去激活过程。
3、 根据权利要求 1所述离线推送 Push实现方法, 其特征在于, 所述通知网络侧发起 PDP上下文激活过程包括: WAP网关根据所述 移动终端的号码构造 PDP包数据单元 PDU消息, 将所述 PDP PDU 消息发送至网络侧的 GGSN。
4、根据权利要求 1或 3所述离线推送 Push实现方法, 其特征在 于, 还包括:
判断是否激活成功, 如果成功, 则继续执行所述将 Push消息下 发至激活成功的移动终端的步骤; 否则, 緩存所述 Push消息, 经过 预先设置的时间段之后, 继续执行所述判断接收 Push消息的移动终 端是否在线的步骤。
5、 根据权利要求 4所述离线推送 Push实现方法, 其特征在于, 还包括: 判断所述通知的次数是否超过预先设定的门限值, 如果是, 则删除所述 Push消息, 结束当前流程; 否则继续执行所述通知的过 程。
6、根据权利要求 1或 3所述离线推送 Push实现方法, 其特征在 于, 还包括:
判断是否激活成功, 如果成功, 则继续执行所述将 Push消息下 发至激活成功的移动终端的步骤; 否则, 删除所述 Push消息。
7、 根据权利要求 1所述离线推送 Push实现方法, 其特征在于, 所述接收 Push消息的移动终端由 WAP网关进行选择。
8、 根据权利要求 1所述离线推送 Push实现方法, 其特征在于, 所述 Push消息由 WAP网关预先生成。
9、 一种离线 Push实现系统, 其特征在于, 所述系统包括: WAP网关, 用于判断接收 Push消息的移动终端是否在线, 如果 在线, 则将 Push消息下发至所述移动终端; 否则, 通知 GGSN发起 PDP上下文激活过程,将 Push消息下发至激活成功的所述移动终端; GGSN, 用于接收 WAP 网关发送的所述通知, 命令服务通用无 线业务支持节点 SGSN执行 PDP上下文激活过程, 并创建 PDP上下 文;
SGSN,用于接收 GGSN发送的所述命令,执行 PDP上下文激活 过程。
10、 一种 WAP网关, 其特征在于, 所述 WAP网关包括: 判断模块, 用于判断接收 Push消息的移动终端是否在线; 激活模块, 用于当判断模块的判断结果为移动终端不在线时, 通 知网络侧发起 PDP上下文激活过程, 在激活成功后将激活成功消息 发送至发送模块;
发送模块, 用于当判断模块的判断结果为移动终端在线时、 或者 从激活模块接收到激活成功消息时, 将 Push消息下发至移动终端。
11、 根据权利要求 10所述 WAP网关, 其特征在于, 所述 WAP 网关进一步包括:
断连发起模块, 用于在发送模块将 Push消息下发至激活成功的 移动终端之后, 发起断连, 通知网络侧发起 PDP上下文去激活过程。
12、根据权利要求 10所述 WAP网关, 其特征在于, 所述激活模 块包括:
PDP PDU消息构造子模块, 用于根据移动终端的号码构造 PDP PDU消息;
PDP PDU消息发送子模块, 用于将构造的 PDP PDU消息发送至 网络侧的 GGSN, 通知网络侧发起 PDP上下文激活过程; 发送子模块, 用于在激活成功后将激活成功消息发送至发送模 块。
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