WO2010028584A1 - 一种跨接入网寻呼的方法、系统及装置 - Google Patents

一种跨接入网寻呼的方法、系统及装置 Download PDF

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Publication number
WO2010028584A1
WO2010028584A1 PCT/CN2009/073783 CN2009073783W WO2010028584A1 WO 2010028584 A1 WO2010028584 A1 WO 2010028584A1 CN 2009073783 W CN2009073783 W CN 2009073783W WO 2010028584 A1 WO2010028584 A1 WO 2010028584A1
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WIPO (PCT)
Prior art keywords
access network
terminal
source
data packet
target
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Application number
PCT/CN2009/073783
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English (en)
French (fr)
Inventor
林青
何清容
崔亚蕾
沈俊伯
黎步松
嵇家刚
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication of WO2010028584A1 publication Critical patent/WO2010028584A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W68/00User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/02Buffering or recovering information during reselection ; Modification of the traffic flow during hand-off
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/14Reselecting a network or an air interface
    • H04W36/142Reselecting a network or an air interface over the same radio air interface technology
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/16Performing reselection for specific purposes
    • H04W36/18Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/27Control channels or signalling for resource management between access points
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, system, and apparatus for paging across an access network.
  • the terminal moves to an overlapping coverage area of multiple access networks (ANs)
  • the terminal is prone to frequent ping-pong switching.
  • 3GPP2 3rd Generation Partnership Project 2
  • the source AN forwards the paging message to the target AN, and the AT establishes a connection at the target AN and migrates the session information of the source AN to the target AN side.
  • AT re-establishes the connection at the target AN, and migrates the session information of the source AN to the target side, in the process, there is a connection between the AT and the source AN.
  • the problem that the data packet sent by the Packet Data Serving Node (PDSN) to the source AN is discarded is required to detect and retransmit the data packet through the upper layer network, resulting in a large delay and reducing the communication quality.
  • PDSN Packet Data Serving Node
  • the technical problem to be solved by the embodiments of the present invention is to provide a method, system and device for paging across access networks, which can improve communication quality.
  • the method for the method for paging across the access network provided by the present invention can be implemented by the following technical solutions:
  • Receiving an access request of the terminal sending a request message to the source access network of the terminal, requesting to establish a cross-access network switching link;
  • the embodiment of the present invention further provides another method for paging across an access network, including:
  • the embodiment of the invention further provides a system for paging across access networks, including:
  • a target access network configured to receive an access request of the terminal, send a request message to the source access network of the terminal, request to establish a cross-access network switching link, and receive an allocation request message of the source access network, where The terminal allocates access resources, and obtains the terminal session information stored in the source access network; and sends channel assignment information to the terminal;
  • the source access network is configured to receive a message sent by the target access network of the terminal to establish a cross-access network handover link, send the allocation request information to the target access network, and request the target access network to allocate the access for the terminal. And transmitting the stored terminal session information to the target access network.
  • An embodiment of the present invention further provides an access network, including:
  • Receiving an access request unit configured to receive an access request of the terminal
  • An attach request sending unit configured to send a request message to a source access network of the terminal, requesting to establish a cross-access network switching link;
  • An allocating message receiving unit configured to receive an allocation request message
  • An access resource allocation unit configured to allocate an access resource to the terminal according to the allocation request message
  • a session information obtaining unit configured to acquire the terminal session information stored in the source access network
  • a channel assignment information sending unit configured to send channel assignment information to the terminal, where the terminal accesses according to the channel assignment information Target access network.
  • An embodiment of the present invention further provides another access network, including:
  • An access request receiving unit configured to receive a message originating from the target access network to establish a cross-access network switching link
  • An allocation request sending unit configured to establish a message for switching links across the access network according to the request sent by the target access network, send allocation request information to the target access network, and request the target access network to allocate access for the terminal Resource
  • the session information sending unit is configured to send the stored terminal session information to the target access network.
  • FIG. 1 is a schematic flowchart of a method for paging across an access network according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic flowchart of a method for paging across an access network according to Embodiment 2 of the present invention
  • FIG. 4 is a schematic structural diagram of a system for paging across an access network according to Embodiment 4 of the present invention
  • FIG. 4 is a schematic structural diagram of a system for paging across an access network according to Embodiment 4 of the present invention
  • FIG. 6 is a schematic structural diagram of another access network according to Embodiment 5 of the present invention.
  • FIG. 7 is a schematic structural diagram of an access network according to Embodiment 6 of the present invention.
  • FIG. 8 is a schematic structural diagram of another access network according to Embodiment 6 of the present invention.
  • Embodiments of the present invention provide a method, system, and apparatus for paging across an access network, which are beneficial to improving communication quality.
  • a method for paging across an access network may include: Step 101: Receive an access request of a terminal, send a request message to a source access network of the terminal, and request to establish a cross.
  • the access network switches links.
  • Step 102 Receive an allocation request message sent by the source access network, allocate an access resource to the terminal, and obtain the terminal session information stored in the source access network.
  • Step 103 Send channel assignment information to the terminal, so that the terminal accesses the target access network according to the channel assignment information.
  • the terminal can access the target access network according to the channel assignment information.
  • the foregoing embodiment may be that after receiving the access request of the terminal, the target AN sends a request to the source AN of the terminal, requesting to establish a cross-AN handover link, and the source AN sends a request after requesting to establish a cross-access network handover link.
  • the request message is sent to the target AN, the target AN allocates the access resource to the terminal, and acquires the terminal session information stored in the source AN; the target AN sends the channel assignment information, and the terminal accesses the target AN according to the channel assignment information, thus completing the cross The process of the AN switching the link.
  • the target AN after receiving the access request of the terminal, the target AN initiates a process of soft handover across the AN, and the terminal accesses through the target AN, so that the target AN becomes a soft handover branch of the source AN, and the data of the source PCF entity can pass the source.
  • the AN transmits the data packet to the target AN, which avoids the problem of packet loss and improves the communication quality.
  • the terminal after the terminal successfully accesses the target access network, it can also:
  • the terminal after the terminal successfully accesses the target access network, it can also:
  • the source access network can better coordinate the transmission and reception power of the access network with respect to the terminal by using the power control information, which is beneficial to saving resources.
  • Embodiment 2
  • a method for paging across an access network may include: Step 201: Receive a request sent by a target access network to establish a message for switching links across an access network; Assigning the request information to the target access network, requesting the target access network to allocate access resources for the terminal, assigning the accessed channel information to the terminal, and transmitting the stored terminal session information to the target access network.
  • the terminal may further include:
  • Step 202 Receive successful access target access network information sent by the terminal, obtain a data packet in the source packet control function entity, and forward the data packet to the terminal by using the target access network.
  • the foregoing embodiment may be that after receiving the access request of the terminal, the target AN sends a request to the source AN of the terminal, requesting to establish a cross-AN handover link, and the source AN sends a request after requesting to establish a cross-access network handover link.
  • Request message to the target AN the target AN allocates access resources to the terminal, and obtains the source AN
  • the target AN after receiving the access request of the terminal, the target AN initiates a process of soft handover across the AN, and the terminal accesses through the target AN, so that the target AN becomes a soft handover branch of the source AN, and the data of the source PCF entity can pass the source.
  • the AN transmits the data packet to the target AN, avoiding the problem of packet loss and improving the communication quality.
  • the source access network may further include:
  • the power control information is sent to the target access network, and the power control information specifies the target access network to receive information (e.g., data packets or messages, etc.) sent by the terminal and/or power control parameters for transmitting information to the terminal.
  • information e.g., data packets or messages, etc.
  • the source access network can better coordinate the transmission and reception power of the access network with respect to the terminal by using the power control information, which is beneficial to saving resources.
  • Embodiment 3
  • the embodiment of the present invention further provides an implementation manner of the foregoing embodiments 1 and 2 applied to the 3GPP2 scenario.
  • the foregoing embodiments 1 and 2 can be applied to other networking scenarios, such as: Wideband Code Divised Multiple Access (WCDMA), Universal Mobile Communication System (Universal The scenario of the Moble Telecommunication System (UMTS) is different from the embodiment only in the change of the interface, protocol, and the like used for sending the message, and the modification of the interface, protocol, and the like used by the foregoing message is protected by those skilled in the art;
  • WCDMA Wideband Code Divised Multiple Access
  • UMTS Universal Mobile Communication System
  • the 3GPP2 scenario applicable to this embodiment is not exhaustive of the scenario of the first embodiment and the second embodiment.
  • the 3GPP2 scenario should not be construed as limiting the embodiment of the present invention.
  • a method for paging across an access network may include: Step 301: When a PDSN receives a data packet addressed to an AT, the PDSN may receive the received data packet. Forward to the source PCF entity.
  • Step 302 After receiving the data packet, the source PCF entity sends a service request message to the source AN, where the message can be sent through the PCF-AN interface.
  • Step 303 After receiving the service request message, the source AN may return a response message, where the response message may be sent through the PCF-AN interface.
  • Step 304 The source AN requests the target AN to send a paging message to the AT, and the request may be sent by using an A13-Paging Request message (A13-Paging Request).
  • A13-Paging Request A13-Paging Request
  • Step 305 After receiving the paging message, the target AN may return a response, and the response may be adopted.
  • A13 - Paging Request Response message (A13-Paging Request Response) is sent.
  • Step 306 The source AN sends a paging message to the AT.
  • Step 307 The target AN sends a paging message to the AT.
  • Step 308 If the AT is within the coverage of the target AN, the AT is accessed at the target AN.
  • Step 309 After receiving the connection request of the AT, the target AN sends a target attach request to the source AN of the terminal, requesting to establish a soft handover link across the AN, and the target attach request may pass the A17-target attach request message (A17-Target Attach) Request) to send.
  • A17-Target Attach A17-Target Attach
  • Step 310 After receiving the A17-Target Attach Request message, the source AN allocates a request message to the target AN, requesting the target AN to allocate an access resource for the AT, and the message may be sent through the A17-Assignment Request message ( A17-Allocate Request) is sent.
  • Step 311 After the target AN successfully allocates the access resource, the source AN may return an allocation response message, and the message may be sent by using an A17-Allocate Request Ack.
  • Step 312 The source AN sends a setting attribute message (A17-Set Attributes) to the target AN, and sends the session information of the AT to the target AN.
  • the message may also be sent together with the message of step 310.
  • Step 313 After receiving the setting attribute message, the target AN may return a response, and the response may be sent by using an A17-Set Attributes Ack message.
  • the message may also be sent together with the message of step 311.
  • Step 314 The target AN allocates a traffic channel to the AT.
  • Step 315 After the AT accesses the target AN according to the channel allocated in step 314, the AT returns a response, and informs the target AN to successfully access.
  • Step 316 After detecting the reverse traffic channel of the AT, the target AN sends a capture status message to the source AN, and informs the source AN that the AT has successfully accessed, and the capture status message can pass the A19-capture status. Message (Al 9- Acquisition Status ) to send.
  • Step 317 After receiving the foregoing capture status message, the source AN returns a capture status response message to the target AN.
  • the capture status response message may be sent by using an A19-Acquisition Status Ack message.
  • Step 318 The source AN sends the power control information set by the source AN to the target AN, and the power control information may be carried in the A17-Set Attributes message (A17-Set Attributes) and sent to the target AN.
  • A17-Set Attributes A17-Set Attributes
  • the foregoing power control information specifies a corresponding power control parameter, and the type of the power control related to the power control parameter may be specifically referred to the related description in the 3GPP2 A.S0008-C protocol.
  • Step 319 The target AN returns a setting attribute response message to the source AN, and this setting attribute response message can be sent through the A17-Set attribute response message.
  • Step 320 The source AN sends an A9-update A8 message to the source PCF entity.
  • Step 321 The source PCF entity sends an A9-update A8 response message to the source AN.
  • Step 322 The PDSN transmits the service data to the AT through the path of the source PCF entity, the source AN, and the target AN.
  • the target AN and the AT may receive and/or transmit data packets according to the power control parameters specified by the above power control information, and receive and/or transmit messages and the like.
  • the interface used in the foregoing embodiment is a standard interface in the 3GPP2 scenario.
  • the embodiment of the present invention does not limit this; the inventive concepts of the first embodiment and the second embodiment It can also be applied to other scenarios.
  • the 3GPP2 scenario is just one example. It can be understood that 3GPP2 is not an exhaustive use of the inventive concept.
  • the target AN after receiving the access request of the terminal, the target AN initiates a process of soft handover across the AN, so that the target AN becomes a soft handover branch of the source AN, and the data of the source PCF entity can transmit the data packet to the target through the source AN.
  • AN avoids the problem of packet loss and improves the communication quality.
  • an embodiment of the present invention further provides a system for paging across an access network.
  • a system for paging across access networks may include: a target access network 401 and a source access network 402.
  • the target access network 401 is configured to receive an access request of the terminal, send a request message to the source access network 402 of the terminal, request to establish a cross-access network switching link, and receive an allocation request sent by the source access network 402.
  • the terminal allocates access resources, and obtains terminal session information stored in the source access network 402; and sends channel assignment information to the terminal.
  • the source access network 402 is configured to receive a message sent by the target access network 401 of the terminal to establish a cross-access network handover link, send the allocation request information to the target access network 401, and request the target access network 401 to allocate the terminal. Accessing the resource; and transmitting the stored terminal session information to the target access network 401.
  • the target AN 401 After receiving the access request of the terminal, the target AN 401 sends a request to the source AN 402 of the terminal to request to establish a cross-AN handover link, and the source AN 402 receives the request to establish a cross-access network handover link. Sending an allocation request message to the target AN 401, the target AN 401 allocates access resources for the terminal, and acquires terminal session information stored in the source AN 402; the target AN 401 transmits channel assignment information, and the terminal accesses the target AN according to the channel assignment information. 401, this completes the process of switching links across ANs.
  • the system may further include: a source packet control function entity 403, configured to send the data packet to the source access network 402.
  • the source access network 402 is further configured to obtain a data packet in the source packet control function entity 403, and send the data packet to the target access network 401.
  • the target access network 401 can also be configured to receive the data packet sent by the source access network 402 and send the data packet to the terminal.
  • the source access network 402 can also be configured to send power control information to the target access network 401, where the power control information specifies that the target access network 401 receives the data packet sent by the terminal and/or sends the data packet to the terminal.
  • the power control parameters of the data packet can also be configured to send power control information to the target access network 401, where the power control information specifies that the target access network 401 receives the data packet sent by the terminal and/or sends the data packet to the terminal.
  • the power control parameters of the data packet can also be configured to send power control information to the target access network 401, where the power control information specifies that the target access network 401 receives the data packet sent by the terminal and/or sends the data packet to the terminal.
  • the power control parameters of the data packet can also be configured to send power control information to the target access network 401, where the power control information specifies that the target access network 401 receives the data packet sent by the terminal and/or sends the data packet to the terminal.
  • the target access network 401 can also be configured to receive power control information sent by the source access network 402, and receive the data packet sent by the terminal according to the power control parameter specified by the power control information and/or send the data packet to the terminal.
  • the target AN after receiving the access request of the terminal, the target AN initiates a process of soft handover across the AN, and the terminal accesses through the target AN, so that the target AN becomes a soft handover branch of the source AN, and the data of the source PCF entity can pass the source.
  • the AN transmits the data packet to the target AN, avoiding the problem of packet loss and improving the communication quality.
  • an embodiment of the present invention further provides a target connection.
  • Network access Embodiment 5
  • a target access network may include: a receiving access request unit 501, configured to receive an access request of a terminal.
  • the attach request sending unit 502 is configured to: after receiving the access request of the terminal, the receiving access request unit 501 sends a request message to the source access network of the terminal, requesting to establish a cross-access network switching link.
  • the distribution message receiving unit 503 is configured to receive an allocation request message.
  • the access resource allocation unit 504 is configured to allocate an access resource to the terminal after the allocation message receiving unit 503 receives the allocation request message.
  • the session information obtaining unit 505 is configured to obtain terminal session information stored in the source access network.
  • the channel assignment information sending unit 506 is configured to send channel assignment information to the terminal, so that the terminal successfully accesses the target access network according to the channel assignment information.
  • the terminal can successfully access the target access network according to the channel assignment information.
  • the target access network may complete the access process.
  • the target access network may further include:
  • the data packet obtaining unit 507 is configured to obtain, after the terminal successfully accesses the target access network, the data packet in the source packet control function entity by using the source access network.
  • the data packet sending unit 508 is configured to send the data packet to the terminal.
  • the foregoing target access network may further include:
  • the power control information receiving unit 601 is configured to receive power control information sent by the source access network.
  • the packet obtaining unit 507 is configured to transmit a data packet according to the received power receiving terminal specified by the power control information received by the power control information receiving unit 601.
  • the packet transmitting unit 508 is configured to send a data packet to the terminal according to the transmission power specified by the power control information received by the power control information receiving unit 601.
  • Embodiment 6 a source access network is further provided in the embodiment of the present invention.
  • the sixth embodiment of the present invention further provides a source access network, which may include: an establishment request receiving unit 701, configured to receive a request sent by a target access network to establish an inter-access network cut. Change the message of the link.
  • a source access network which may include: an establishment request receiving unit 701, configured to receive a request sent by a target access network to establish an inter-access network cut. Change the message of the link.
  • the allocation request sending unit 702 is configured to: after the establishment request receiving unit 701 receives the request sent by the target access network to establish a message across the access network switching link, send the allocation request information to the target access network, requesting the target access network. Allocate access resources to the terminal.
  • the session information sending unit 703 is configured to send the stored terminal session information to the target access network.
  • the source access network may further complete the access process. When the data needs to be transmitted, the source access network may further include:
  • the obtaining data packet unit 704 is configured to obtain a data packet in the source packet control function entity after the terminal successfully accesses the target access network.
  • a sending data packet unit 705 is configured to send the data packet to the target access network.
  • the target access network can further forward the data packet to the terminal.
  • the foregoing source access network may further include:
  • the power control information sending unit 801 is configured to send power control information to the target access network of the terminal, where the power control information specifies that the target access network receives information (for example, a data packet or a message, etc.) sent by the terminal, and/or sends the information to the terminal.
  • the power control parameters of the information for example, a data packet or a message, etc.
  • the target AN after receiving the access request of the terminal, the target AN initiates a process of cross-AN soft handover, and the terminal accesses through the target AN, so that the target AN becomes the soft handover branch of the source AN, and the data of the source PCF entity.
  • the data packet can be transmitted to the target AN through the source AN, which avoids the problem of packet loss and improves the communication quality.
  • the functional units in the various embodiments of the present invention may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module.
  • the above integrated modules can be implemented either in the form of hardware or in the form of software functional modules.
  • the integrated modules, if implemented in the form of software functional modules and sold or used as stand-alone products, may also be stored in a computer readable storage medium.
  • the above-mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the medium can be a read only memory, a magnetic disk or a compact disk or the like.

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Description

一种跨接入网寻呼的方法、 系统及装置
本申请要求于 2008 年 9 月 12 日提交中国专利局、 申请号为 200810149303.4、 发明名称为 "一种跨接入网寻呼的方法、 系统及装置" 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领域,特别涉及一种跨接入网寻呼的方法、 系统及装 置。
背景技术
当终端移动到多个接入网( Access Network, AN )的重叠覆盖区域时, 终 端容易发生频繁的乒乓切换。 为了解决终端的乒乓切换问题, 以及提升寻呼成 功率,第三代移动通信标准化伙伴项目二( 3rd Generation Partnership Project 2, 3GPP2 )标准引入了跨 AN寻呼的功能。
如果终端 ( Access Terminal, AT )移动到目标 AN的覆盖区域, 则源 AN 将寻呼消息转发到目标 AN, AT在目标 AN建立连接,并将源 AN的会话信息 迁移到目标 AN侧。
发明人在实现本发明的过程中发现现有技术存在以下问题: AT在目标 AN 重新建立连接, 并将源 AN的会话信息迁移到目标侧, 该过程中, 存在 AT与 源 AN间的连接断开, 存在分组数据服务节点 (Packet Data Serving Node, PDSN )发给源 AN的数据包被丟弃的问题, 需要通过上层网络检测并重传数 据包, 导致较大的时延, 降低了通信质量。
发明内容
本发明实施例要解决的技术问题是提供一种跨接入网寻呼的方法、系统及 装置, 能够提高通信质量。
为解决上述技术问题,本发明所提供的跨接入网寻呼的方法实施例可以通 过以下技术方案实现:
接收终端的接入请求,发送请求消息给所述终端的源接入网,请求建立跨 接入网切换链路;
接收源接入网发送的分配请求消息, 为所述终端分配接入资源, 并获取源 接入网中存储的所述终端会话信息;
向终端发送信道指配信息;指示终端根据所述信道指配信息接入目标接入 网。
本发明实施例还提供了另一种跨接入网寻呼的方法, 包括:
接收源于目标接入网的请求建立跨接入网切换链路的消息;
发送分配请求信息给目标接入网, 请求目标接入网为终端分配接入资源, 并为终端指配接入的信道信息;
发送存储的所述终端会话信息给目标接入网。
本发明实施例还提供了一种跨接入网寻呼的系统, 包括:
目标接入网, 用于接收终端的接入请求,发送请求消息给所述终端的源接 入网, 请求建立跨接入网切换链路; 接收源接入网的分配请求消息, 为所述终 端分配接入资源, 并获取源接入网中存储的所述终端会话信息; 向所述终端发 送信道指配信息;
源接入网,用于接收终端的目标接入网发送的请求建立跨接入网切换链路 的消息,发送分配请求信息给目标接入网,请求目标接入网为所述终端分配接 入资源; 并发送存储的所述终端会话信息给目标接入网。
本发明实施例还提供了一种接入网, 包括:
接收接入请求单元, 用于接收终端的接入请求;
附着请求发送单元, 用于发送请求消息给所述终端的源接入网,请求建立 跨接入网切换链路;
分配消息接收单元, 用于接收分配请求消息;
接入资源分配单元, 用于根据所述分配请求消息为所述终端分配接入资 源;
会话信息获取单元, 用于获取源接入网中存储的所述终端会话信息; 信道指配信息发送单元, 用于向终端发送信道指配信息, 所述终端根据所 述信道指配信息接入目标接入网。
本发明实施例还提供了另一种接入网, 包括:
接入请求接收单元,用于接收源于目标接入网的请求建立跨接入网切换链 路的消息;
分配请求发送单元,用于根据所述目标接入网发送的请求建立跨接入网切 换链路的消息,发送分配请求信息给目标接入网,请求目标接入网为所述终端 分配接入资源; 会话信息发送单元, 用于发送存储的所述终端会话信息给目标接入网。 附图说明
为了更清楚地说明本发明实施例和现有技术中的技术方案,下面将对实施 例和现有技术描述中所需要使用的附图作筒单地介绍,显而易见地, 下面描述 中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲, 在不付 出创造性劳动性的前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明实施例一提供的一种跨接入网寻呼的方法流程示意图; 图 2为本发明实施例二提供的一种跨接入网寻呼的方法流程示意图; 图 3为本发明实施例三提供的一种跨接入网寻呼的方法流程示意图; 图 4为本发明实施例四提供的一种跨接入网寻呼的系统结构示意图; 图 5为本发明实施例五提供的一种接入网结构示意图;
图 6为本发明实施例五提供的另一种接入网结构示意图;
图 7为本发明实施例六提供的一种接入网结构示意图;
图 8为本发明实施例六提供的另一种接入网结构示意图。
具体实施方式
本发明实施例提供一种跨接入网寻呼的方法、 系统及装置,有利于提高通 信质量。
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清 楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而不是 全部的实施例。基于本发明中的实施例, 本领域普通技术人员在没有做出创造 性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。 实施例一、
如图 1所示, 本发明实施例一的一种跨接入网寻呼的方法, 可以包括: 步骤 101、 接收终端的接入请求, 发送请求消息给终端的源接入网, 请求 建立跨接入网切换链路。
步骤 102、 接收源接入网发送的分配请求消息, 为终端分配接入资源, 并 获取源接入网中存储的所述终端会话信息。
步骤 103、 向终端发送信道指配信息, 以便于终端根据上述信道指配信息 接入目标接入网。 终端可以根据上述信道指配信息接入目标接入网。
上述实施例可以是目标 AN接收到终端的接入请求后, 发送请求给终端的 源 AN, 请求建立跨 AN切换链路, 源 AN接到请求建立跨接入网切换链路的请 求后发送分配请求消息给目标 AN, 目标 AN为终端分配接入资源,并获取源 AN 中存储的终端会话信息; 目标 AN发送信道指配信息, 终端根据信道指配信息 接入目标 AN , 这样就完成了跨 AN切换链路的流程。
上述实施例中, 目标 AN接收到终端的接入请求后, 发起跨 AN软切换的流 程, 终端通过目标 AN接入, 使目标 AN成为源 AN的软切换分支, 源 PCF实体的 数据可以通过源 AN将数据包传送到目标 AN, 可以避免数据包丟失的问题, 提 高了通信质量。
在一种应用场景下, 当终端成功接入目标接入网之后还可以:
接收源于源接入网的功率控制信息,并按照该功率控制信息指定的功控参 数接收终端发送的数据包和 /或向终端发送数据包。
在一种应用场景下, 当终端成功接入目标接入网之后还可以:
接收源于源接入网的功率控制信息,并按照该功率控制信息指定的功控参 数接收终端发送的消息和 /或向终端发送消息。
可以理解,源接入网利用功率控制信息可以更好的实现接入网之间相对于 终端的发射与接收功率的协调, 有利于节约资源。 实施例二、
如图 2所示, 本发明实施例二提供的一种跨接入网寻呼的方法, 可以包括: 步骤 201、 接收目标接入网发送的请求建立跨接入网切换链路的消息; 发 送分配请求信息给目标接入网,请求目标接入网为终端分配接入资源, 为终端 指配接入的信道信息, 并发送存储的终端会话信息给目标接入网。
在一种应用场景下, 终端接入目标接入网后还可以包括:
步骤 202、 接收终端发送的成功接入目标接入网信息, 获取源分组控制功 能实体中的数据包, 通过目标接入网将上述数据包转发给上述终端。
上述实施例可以是目标 AN接收到终端的接入请求后, 发送请求给终端的 源 AN, 请求建立跨 AN切换链路, 源 AN接到请求建立跨接入网切换链路的请 求后发送分配请求消息给目标 AN, 目标 AN为终端分配接入资源,并获取源 AN 中存储的终端会话信息; 目标 AN发送信道指配信息, 终端根据信道指配信息 接入目标 AN , 这样就完成了跨 AN切换链路的流程。
上述实施例中, 目标 AN接收到终端的接入请求后, 发起跨 AN软切换的流 程, 终端通过目标 AN接入, 使目标 AN成为源 AN的软切换分支, 源 PCF实体的 数据可以通过源 AN将数据包传送到目标 AN, 避免了数据包丟失的问题, 提高 了通信质量。
在一种应用场景下,源接入网接收到目标接入网发送的终端成功接入目标 接入网后, 还可以包括:
发送功率控制信息给目标接入网,功率控制信息指定目标接入网接收终端 发送的信息 (例如, 数据包或消息等)和 /或向终端发送信息的功控参数。
可以理解,源接入网利用功率控制信息可以更好的实现接入网之间相对于 终端的发射与接收功率的协调, 有利于节约资源。 实施例三、
本发明实施例还提供了上述实施例一和实施例二的思想应用于 3GPP2场 景下的实现方式。
本领域技术人员可以理解,上述实施例一和实施例二的思想还可以运用于 其它组网场景下,如: 宽带码分多址( Wideband Code Diviston Multiple Access , WCDMA )、 通用移动通信系统 ( Universal Moble Telecommunication System ,UMTS )等场景, 其与本实施例的不同点仅在于发送消息使用的接口、 协议等的改变, 前述发送消息使用的接口、协议等的改变对本领域的技术人员 的保护范围; 综上, 本领域技术人员可以理解, 本实施例适用的 3GPP2场景并 不是实施例一和实施例二的思想运用场景的穷举, 3GPP2场景不应理解为对本 发明实施例的限定。
如图 3所示, 本发明实施例三的一种跨接入网寻呼的方法, 可以包括: 步骤 301、 当 PDSN收到发往 AT的数据包时, PDSN会将上述接收到的数据 包转发给源 PCF实体。
步骤 302、 源 PCF实体收到数据包后, 向源 AN发送业务请求消息, 该消息 可以通过 PCF- AN接口来发送。 步骤 303、 源 AN收到业务请求消息后可以返回响应消息, 本条响应消息可 以通过 PCF-AN接口来发送。
步骤 304、 源 AN请求目标 AN下发寻呼消息给 AT, 此请求可以通过 A13-寻 呼请求消息 ( A13-Paging Request )来发送。
步骤 305、 目标 AN收到上述寻呼消息后可以返回响应, 此响应可以通过
A13-寻呼请求应答消息 ( A13-Paging Request Response )来发送。
步骤 306、 源 AN下发寻呼消息给 AT。
步骤 307、 目标 AN下发寻呼消息给 AT。
其中, 上述步骤 306与步骤 307没有必然的先后顺序要求。
步骤 308、 如果 AT在目标 AN的覆盖范围内, 则 AT会在目标 AN接入。
步骤 309、 目标 AN收到 AT的连接请求后, 发送目标附着请求给终端的源 AN,请求建立跨 AN的软切换链路, 此目标附着请求可以通过 A17-目标附着请 求消息 ( A17-Target Attach Request )来发送。
步骤 310、 源 AN收到 A17-目标附着请求消息 ( A17-Target Attach Request ) 后, 给目标 AN回分配请求消息,请求目标 AN为 AT分配接入资源, 此消息可以 通过 A17-分配请求消息 ( A17-Allocate Request )发送。
步骤 311、 目标 AN成功分配接入资源后, 可以给源 AN返回分配应答响应 消息, 此消息可以通过 A17-分配请求应答消息( A17-Allocate Request Ack )来 发送。
步骤 312、 源 AN给目标 AN发送设置属性消息 (A17-Set Attributes ), 将 AT 的会话信息发送到目标 AN ,本条消息也可以与步骤 310的消息合并一起发送。
步骤 313、 目标 AN接收到设置属性消息后可以返回响应, 该响应可以通过 A17-设置属性应答消息 ( A17-Set Attributes Ack )来发送。
其中, 本条消息也可以与步骤 311的消息合并一起发送。
步骤 314、 目标 AN给 AT分配业务信道。
步骤 315、 AT按照步骤 314分配的信道接入目标 AN后, 返回响应, 告知目 标 AN成功接入。
AT接入目标接入网后软切换链路建立完成, 该链路可以是空口连接的。 步骤 316: 目标 AN在检测到 AT的反向业务信道后, 给源 AN发送捕获状态 消息, 告知源 AN, AT已经成功接入, 此捕获状态消息可以通过 A19-捕获状态 消息 ( Al 9- Acquisition Status ) 来发送。
步骤 317、 源 AN收到上述捕获状态消息后, 给目标 AN回捕获状态应答消 息; 此捕获状态应答消息可以通过 A19-捕获状态应答消息 ( A19- Acquisition Status Ack ) 来发送。
步骤 318: 源 AN发送源 AN设置的功率控制信息给目标 AN, 该功率控制信 息可以携带在 A17-设置属性消息 (A17-Set Attributes ) 中发送到目标 AN。
上述功率控制信息指定了相应的功控参数, 其中, 上述功控参数涉及的功 控类型具体可以参照 3GPP2 A.S0008-C协议中的相关描述。
步骤 319: 目标 AN返回设置属性应答消息到源 AN, 此设置属性应答消息 可以通过 A17-设置属性应答消息来发送。
其中, 上述步骤 318和步骤 319为可选步骤。
步骤 320、 源 AN发 A9-更新 A8消息到源 PCF实体。
步骤 321、 源 PCF实体发 A9-更新 A8应答消息到源 AN。
步骤 322、 PDSN通过源 PCF实体、 源 AN、 目标 AN的路径, 传送业务数据 到 AT。
可以理解, 目标 AN和 AT之间可以是按照上述功率控制信息指定的功控参 数来接收和 /或发送数据包, 以及接收和 /或发送消息等。
上述实施例中所使用的接口为 3GPP2场景下的标准接口, 当然使用 3GPP2 定义的其它接口来发送消息也是可以的, 本发明实施例对此并不作限定; 实施 例一和实施例二的发明思想还可以运用于其它场景, 3GPP2场景只是其中的一 个例子, 可以理解的是 3GPP2不是本发明思想运用场景的穷举。
上述实施例中, 目标 AN接收到终端的接入请求后, 发起跨 AN软切换的流 程,使目标 AN成为源 AN的软切换分支, 源 PCF实体的数据可以通过源 AN将数 据包传送到目标 AN, 避免了数据包丟失的问题, 提高了通信质量。
为便于更好的实施本发明的技术方案,本发明实施例还提供一种跨接入网 寻呼的系统。 实施例四、
如图 4所示, 本发明实施四的一种跨接入网寻呼的系统, 可以包括: 目标 接入网 401、 源接入网 402。 其中, 目标接入网 401 , 用于接收终端的接入请求, 发送请求消息给终端 的源接入网 402,请求建立跨接入网切换链路;接收到源接入网 402发送的分配 请求消息后, 为终端分配接入资源, 并获取源接入网 402中存储的终端会话信 息; 向终端发送信道指配信息。
源接入网 402,用于接收终端的目标接入网 401发送的请求建立跨接入网切 换链路的消息,发送分配请求信息给目标接入网 401 ,请求目标接入网 401为终 端分配接入资源; 并发送存储的终端会话信息给目标接入网 401。
上述实施例中目标 AN 401接收到终端的接入请求后, 发送请求给终端的 源 AN 402, 请求建立跨 AN切换链路, 源 AN 402接到请求建立跨接入网切换链 路的请求后发送分配请求消息给目标 AN 401 , 目标 AN 401为终端分配接入资 源, 并获取源 AN 402中存储的终端会话信息; 目标 AN 401发送信道指配信息, 终端根据信道指配信息接入目标 AN 401 , 这样就完成了跨 AN切换链路的流 程。
在一种应用场景下, 若完成接入后还进行数据传输, 系统还可以包括: 源分组控制功能实体 403 , 用于发送数据包给源接入网 402。
源接入网 402,还可以用于获取源分组控制功能实体 403中的数据包, 并将 上述数据包发送给目标接入网 401。
目标接入网 401 ,还可以用于接收源接入网 402发送的数据包并发送给上述 终端。
在一种应用场景下, 源接入网 402, 还可以用于发送功率控制信息给目标 接入网 401 , 该功率控制信息指定目标接入网 401接收终端发送的数据包和 /或 向终端发送数据包的功控参数。
目标接入网 401 ,还可以用于接收源接入网 402发送的功率控制信息, 并按 照功率控制信息指定的功控参数接收终端发送的数据包和 /或向终端发送数据 包。
上述实施例中, 目标 AN接收到终端的接入请求后, 发起跨 AN软切换的流 程, 终端通过目标 AN接入, 使目标 AN成为源 AN的软切换分支, 源 PCF实体的 数据可以通过源 AN将数据包传送到目标 AN, 避免了数据包丟失的问题, 提高 了通信质量。
为便于更好的实施本发明的技术方案,本发明实施例中还提供一种目标接 入网。 实施例五、
如图 5所示, 本发明实施例五提供的一种目标接入网, 可以包括: 接收接入请求单元 501 , 用于接收终端的接入请求。
附着请求发送单元 502,用于在接收接入请求单元 501接收到终端的接入请 求后, 发送请求消息给终端的源接入网, 请求建立跨接入网切换链路。
分配消息接收单元 503 , 用于接收分配请求消息。
接入资源分配单元 504,用于在分配消息接收单元 503接收到分配请求消息 后为终端分配接入资源。
会话信息获取单元 505 , 用于获取源接入网中存储的终端会话信息。
信道指配信息发送单元 506, 用于向终端发送信道指配信息, 以便于终端 根据信道指配信息成功接入目标接入网。
终端可以根据信道指配信息成功接入目标接入网。
目标接入网上述功能单元可以完成接入过程, 当需要传输数据时, 目标接 入网还可以包括:
数据包获取单元 507, 用于在终端成功接入目标接入网后, 通过源接入网 获取源分组控制功能实体中的数据包。
数据包发送单元 508, 用于将数据包发送给终端。
进一步的, 如图 6所示, 上述目标接入网, 还可以包括:
功率控制信息接收单元 601 , 用于接收源接入网发送的功率控制信息。 数据包获取单元 507,用于根据功率控制信息接收单元 601接收的功率控制 信息指定的接收功率接收终端发送数据包。
数据包发送单元 508,可以用于根据功率控制信息接收单元 601接收的功率 控制信息指定的发送功率向终端发送数据包。
为便于更好的实施本发明的技术方案,本发明实施例中还提供一种源接入 网。 实施例六、
如图 7所示, 本发明实施例六还提供了一种源接入网, 可以包括: 建立请求接收单元 701 , 用于接收目标接入网发送的请求建立跨接入网切 换链路的消息。
分配请求发送单元 702,用于在建立请求接收单元 701接收到目标接入网发 送的请求建立跨接入网切换链路的消息后, 发送分配请求信息给目标接入网, 请求目标接入网为终端分配接入资源。
会话信息发送单元 703, 用于发送存储的终端会话信息给目标接入网。 源接入网上述功能单元可以完成接入过程, 当需要传输数据时, 源接入网 还可以包括:
获取数据包单元 704, 用于当终端成功接入目标接入网后, 获取源分组控 制功能实体中的数据包。
发送数据包单元 705, 用于将数据包发送给目标接入网。
目标接入网可以进一步向终端转发数据包。
进一步的, 如图 8所示, 上述源接入网还可以包括:
功率控制信息发送单元 801 ,用于发送功率控制信息给终端的目标接入网, 该功率控制信息指定目标接入网接收终端发送的信息(例如,数据包或消息等) 和 /或向终端发送信息的功控参数。
上述系统和装置实施例中, 目标 AN接收到终端的接入请求后, 发起跨 AN 软切换的流程, 终端通过目标 AN接入, 使目标 AN成为源 AN的软切换分支, 源 PCF实体的数据可以通过源 AN将数据包传送到目标 AN, 避免了数据包丟失 的问题, 提高了通信质量。
在本发明各个实施例中的各功能单元可以集成在一个处理模块中,也可以 是各个单元单独物理存在,也可以两个或两个以上单元集成在一个模块中。上 述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实 现。所述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或 使用时,也可以存储在一个计算机可读取存储介质中。上述提到的存储介质可 以是只读存储器, 磁盘或光盘等。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分步骤 是可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可 读存储介质中, 上述提到的存储介质可以是只读存储器, 磁盘或光盘等。
以上对本发明实施例所提供的一种跨接入网寻呼的方法、系统及相关装置 述, 以上实施例的说明只是用于帮助理解本发明的方法及其核心思想; 同时, 对于本领域的一般技术人员,依据本发明的思想, 在具体实施方式及应用范围 上均会有改变之处, 综上所述, 本说明书内容不应理解为对本发明的限制。

Claims

权 利 要 求
1、 一种跨接入网寻呼的方法, 其特征在于, 包括:
接收终端的接入请求,发送请求消息给所述终端的源接入网,请求建立跨 接入网切换链路;
接收源接入网发送的分配请求消息, 为所述终端分配接入资源, 并获取源 接入网中存储的所述终端会话信息;
向所述终端发送信道指配信息,以便于所述终端根据所述信道指配信息接 入目标接入网。
2、 根据权利要求 1所述方法, 其特征在于, 所述方法还包括:
通过源接入网获取源分组控制功能实体中的数据包,并在所述终端成功接 入目标接入网后, 将所述数据包发送给所述终端。
3、 根据权利要求 1所述方法其特征在于, 所述方法还包括:
接收源于源接入网的功率控制信息;
按照所述功率控制信息指定的功控参数, 向所述终端发送数据包和 /或接 收所述终端发送的数据包。
4、 一种跨接入网寻呼的方法, 其特征在于, 包括:
接收源于目标接入网的请求建立跨接入网切换链路的消息;
发送分配请求信息给目标接入网, 请求目标接入网为终端分配接入资源, 并为所述终端指配接入的信道信息;
发送存储的所述终端会话信息给目标接入网。
5、 根据权利要求 4所述方法, 其特征在于, 所述方法还包括:
接收源于终端的成功接入目标接入网信息,获取源分组控制功能实体中的 数据包, 通过目标接入网向所述终端转发所述数据包。
6、 根据权利要求 4所述方法, 其特征在于, 所述接收源于终端的成功接入 目标接入网信息之后还包括:
发送功率控制信息给所述目标接入网,所述功率控制信息指定所述目标接 入网接收所述终端发送的数据包和 /或向所述终端发送数据包的功控参数。
7、 一种跨接入网寻呼的系统, 其特征在于, 包括:
目标接入网, 用于接收终端的接入请求,发送请求消息给所述终端的源接 入网, 请求建立跨接入网切换链路; 接收源接入网的分配请求消息, 为所述终 端分配接入资源, 并获取源接入网中存储的所述终端会话信息; 向所述终端发 送信道指配信息;
源接入网,用于接收终端的目标接入网发送的请求建立跨接入网切换链路 的消息,发送分配请求信息给目标接入网,请求目标接入网为所述终端分配接 入资源; 并发送存储的所述终端会话信息给目标接入网。
8、 根据权利要求 7所述系统, 其特征在于, 所述系统还包括:
源分组控制功能实体, 用于发送数据包给源接入网;
所述源接入网,还用于获取源分组控制功能实体中的数据包, 并将所述数 据包发送给目标接入网;
所述目标接入网,还用于接收源接入网发送的数据包并将所述数据包发送 给所述终端。
9、 根据权利要求 7所述系统, 其特征在于,
所述源接入网, 还用于向所述目标接入网发送功率控制信息;
所述目标接入网,还用于接收源于源接入网的所述功率控制信息, 并按照 所述功率控制信息指定的功控参数接收所述终端发送的数据包和 /或向所述终 端发送数据包。
10、 一种接入网, 其特征在于, 包括:
接收接入请求单元, 用于接收终端的接入请求;
附着请求发送单元, 用于发送请求消息给所述终端的源接入网,请求建立 跨接入网切换链路;
分配消息接收单元, 用于接收分配请求消息;
接入资源分配单元, 用于根据所述分配请求消息为所述终端分配接入资 源;
会话信息获取单元, 用于获取源接入网中存储的所述终端会话信息; 信道指配信息发送单元, 用于向终端发送信道指配信息, 以便于所述终端 根据所述信道指配信息接入目标接入网。
11、 根据权利要求 10所述接入网, 其特征在于, 还包括:
数据包获取单元, 用于通过源接入网获取源分组控制功能实体中的数据 包;
数据包发送单元, 用于将所述数据包发送给所述终端。
12、 根据权利要求 11所述接入网, 其特征在于, 还包括:
功率控制信息接收单元, 用于接收源于源接入网的功率控制信息; 所述数据包获取单元,还用于根据所述功率控制信息指定的接收功率接收 所述终端发送数据包;
所述数据包发送单元,用于根据所述功率控制信息指定的发送功率向所述 终端发送数据包。
13、 一种接入网, 其特征在于, 包括:
建立请求接收单元,用于接收源于目标接入网的请求建立跨接入网切换链 路的消息;
分配请求发送单元,用于根据所述目标接入网发送的请求建立跨接入网切 换链路的消息,发送分配请求信息给目标接入网,请求目标接入网为所述终端 分配接入资源;
会话信息发送单元, 用于发送存储的所述终端会话信息给目标接入网。
14、 根据权利要求 13所述接入网, 其特征在于, 还包括:
获取数据包单元, 用于获取源分组控制功能中的数据包;
发送数据包单元, 用于将所述数据包发送给目标接入网。
15、 根据权利要求 13或 14所述接入网, 其特征在于, 还包括:
功率控制信息发送单元, 用于发送功率控制信息给所述终端的目标接入 网, 所述功率控制信息指定所述目标接入网接收所述终端发送的数据包和 /或 向所述终端发送数据包的功控参数。
PCT/CN2009/073783 2008-09-12 2009-09-07 一种跨接入网寻呼的方法、系统及装置 WO2010028584A1 (zh)

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