WO2011035688A1 - 网络切换方法、系统及设备 - Google Patents
网络切换方法、系统及设备 Download PDFInfo
- Publication number
- WO2011035688A1 WO2011035688A1 PCT/CN2010/076773 CN2010076773W WO2011035688A1 WO 2011035688 A1 WO2011035688 A1 WO 2011035688A1 CN 2010076773 W CN2010076773 W CN 2010076773W WO 2011035688 A1 WO2011035688 A1 WO 2011035688A1
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- WIPO (PCT)
- Prior art keywords
- base station
- terminal
- information
- virtual base
- switching
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 74
- 230000004044 response Effects 0.000 claims description 70
- 230000008569 process Effects 0.000 abstract description 19
- 238000004891 communication Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 230000003993 interaction Effects 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
Definitions
- the present invention relates to the field of communications technologies, and in particular, to a network switching method, system, and device.
- a terminal uses a single radio frequency switching mode when switching from a Worldwide Interoperability for Microwave Access (WiMAX) network that is not interoperable for microwave access to a WiMAX network.
- WiMAX Worldwide Interoperability for Microwave Access
- the terminal first enters the WiMA network by performing ranging, base station capability negotiation, pre-authentication, and attached network interaction through a tunnel in the current non-WiMAX network, and then adopts an active switching mode or an idle mode switching mode.
- the virtual base station switches to the target base station or enters the idle mode of the WiMAX network; after the terminal switches to the radio frequency of the WIMAX network, the terminal re-enters the WiMAX network from the target base station from the air interface to complete the network switching process.
- the terminal actively sends a handover request message to the virtual base station, where the handover request message includes information of one or more candidate target base stations discovered by the terminal; after receiving the handover request message, the virtual base station interacts with each candidate target base station.
- the terminal receives the handover response message of the virtual base station, the terminal sends a handover indication message to the virtual base station, and specifies a final handover target base station; when the terminal is from the non-WiMAX on the air interface
- the radio frequency is switched to the WiMAX radio frequency
- the terminal performs the ranging operation with the determined target base station to complete the WiMAX network re-entry, and finally completes the handover process.
- the step of performing network re-entry with the target base station generally includes ranging, capability negotiation, and the like, and no complete authentication is required.
- the terminal sends a request message to the virtual base station to request to enter the idle mode; the virtual base station returns a response message determining to enter the idle mode, and notifies the network to perform appropriate processing, and records the terminal as an idle mode, temporarily not targeting the target.
- the network releases the terminal-related resources as much as possible, and retains only necessary information, such as authentication information, attached base station information, and the like.
- the idle mode can be indicated in the ranging request, and then the network performs the process of exiting the idle mode from the terminal, and does not need to complete the network. Certification.
- the terminal does not perform the action of switching the base station, but by entering the idle mode from the virtual base station and then exiting the idle mode from the target base station, the purpose of switching from the virtual base station to the target base station is actually achieved.
- the inventors of the present invention found that: when the terminal switches from the non-WiMAX network to the WiMAX, the active switching or the idle mode switching is adopted, but which method is used for switching is deployment.
- the terminal On the virtual base station, determined by the virtual base station, the terminal attempts to perform a mode switching first. If the virtual base station rejects, another mode switch is performed, which increases the switching time and is inefficient. Summary of the invention
- Embodiments of the present invention provide a network switching method, system, and device, which improve network switching efficiency and reduce network switching time.
- the embodiment of the invention provides a network switching method, including:
- switching mode information for the terminal supported by the virtual base station to switch from the virtual base station to the target base station, where the switching mode information includes information indicating active switching and/or information indicating idle mode switching; according to the switching mode information, to the virtual
- the base station transmits a corresponding message, so that the terminal switches from the virtual base station to the target base station in a corresponding handover manner.
- An embodiment of the present invention further provides a network switching method, including:
- the switching mode information of the terminal supported by the virtual base station from the virtual base station to the target base station is added to the message;
- An embodiment of the present invention further provides a terminal, including:
- a mode information obtaining unit configured to obtain switching mode information that the terminal supported by the virtual base station switches from the virtual base station to the target base station, where the switching mode information includes information indicating active switching and/or information indicating idle mode switching;
- a switching unit configured to send a corresponding message to the virtual base station according to the switching mode information obtained by the mode information obtaining unit, so that the terminal switches from the virtual base station to the target base station in a corresponding switching manner.
- An embodiment of the present invention further provides a virtual base station, including:
- a first adding unit configured to add, to the bearer message, information about a switching mode of the terminal supported by the virtual base station from the virtual base station to the target base station;
- a first sending switching unit configured to send a bearer message after adding the first adding unit to The terminal, so that the terminal switches from the virtual base station to the target base station according to the handover mode information supported by the virtual base station.
- An embodiment of the present invention further provides an information server, including:
- a second receiving processing unit configured to receive a query request message sent by the terminal, where the query request message includes location information of the terminal and/or identifier information of the target base station; and according to the location of the terminal included in the query request message Information and/or identification information of the target base station to find a corresponding virtual base station;
- a second adding unit configured to add, to the query response message, information about a switching mode of the terminal supported by the virtual base station that is searched by the second receiving processing unit to switch from the virtual base station to the target base station;
- a second sending switching unit configured to send the query response message that is added by the second adding unit to the terminal, so that the terminal switches from the virtual base station to the target base station according to the switching mode information supported by the virtual base station.
- An embodiment of the present invention further provides an information server, including:
- a second receiving processing unit configured to receive a query request message sent by the terminal, where the query request message includes location information of the terminal and/or identifier information of the target base station; and according to the location of the terminal included in the query request message Information and/or identification information of the target base station to find a corresponding virtual base station;
- a second adding unit configured to add, to the query response message, information about a switching mode of the terminal supported by the virtual base station that is searched by the second receiving processing unit to switch from the virtual base station to the target base station;
- a second sending switching unit configured to send the query response message that is added by the second adding unit to the terminal, so that the terminal switches from the virtual base station to the target base station according to the switching mode information supported by the virtual base station.
- the embodiment of the present invention further provides a network switching system, including: a terminal and a virtual base station, where the virtual base station is configured to add, to the bearer message, the handover mode information of the terminal supported by the virtual base station from the virtual base station to the target base station.
- the terminal configured to receive a bearer message sent by the virtual base station, and obtain a handover mode information that the terminal supported by the virtual base station switches from the virtual base station to the target base station, where
- the switching mode information includes information indicating active switching and/or information indicating idle mode switching. According to the switching mode information, a corresponding message is sent to the virtual base station, so that the terminal switches from the virtual base station to the destination. Standard base station.
- the network switching mode adopted by the embodiment of the present invention is that the terminal first obtains the handover mode information of the handover from the virtual base station to the target base station, and then sends a corresponding message to the virtual base station according to the handover mode information, and performs the terminal from the virtual base station to the target base station.
- Switching in the process of the terminal switching from the non-WiMAX network to the WiMAX network, the terminal can directly switch according to the switching mode supported by the virtual base station.
- the switching mode is required, and the embodiment of the present invention is used.
- the network switching method will reduce the switching time and improve the network switching efficiency.
- FIG. 1 is a flow chart of a method for switching a terminal from a non-WiMAX network to a WiMAX network in the prior art
- FIG. 2 is a flowchart of a network switching method provided by an embodiment of a method according to the present invention
- FIG. 3 is a flowchart of a network switching method according to Embodiment 1 of the method of the present invention.
- FIG. 4 is a flowchart of a network switching method according to Embodiment 2 of the method of the present invention.
- FIG. 5 is a flowchart of a network switching method according to Embodiment 3 of the method of the present invention.
- FIG. 6 is a schematic structural diagram of a terminal provided in Embodiment 1 of the device of the present invention.
- FIG. 7 is a schematic structural diagram of a virtual base station according to Embodiment 2 of the device of the present invention.
- FIG. 8 is a schematic structural diagram of an information server provided in Embodiment 3 of the device of the present invention.
- FIG. 9 is a schematic structural diagram of a network switching system according to an embodiment of the system of the present invention. detailed description
- Method embodiment A network switching method is applicable to a method for a terminal to switch from a non-WiMAX network to a WiMAX network.
- the flowchart is as shown in FIG. 2, and includes:
- Step A The terminal obtains the switching mode information that the terminal switches from the virtual base station to the target base station, which is supported by the virtual WiMAX base station (hereinafter referred to as the virtual base station);
- the terminal may actively obtain the request from the virtual base station, or receive the information that is sent by the virtual base station to the terminal, and may also obtain the information server that stores the virtual base station capability information. .
- the switching mode information includes: information indicating that the virtual base station supports active handover, and/or information indicating that the virtual base station supports the idle mode, and the like, if the information indicating that the virtual base station supports active handover, the terminal may perform the active handover process from the virtual base station. Directly switching to the target base station; if the information indicating that the virtual base station supports the idle mode, the terminal can enter the idle mode through the virtual base station, and then exit the idle mode when performing network reentry from the target base station, thereby realizing the transition from the virtual base station to the target base station. Switching.
- the switching mode information may be preset in the virtual base station, and the capability of supporting the mode may be indicated by a mode word, for example, 1 means support for active switching, 2 means support for idle mode, and 3 means both are supported.
- the respective flag bits of the supported capabilities can also be used separately. When the value of the flag corresponding to a certain capability is 1, the capability is supported. When the corresponding flag bit is 0, the capability is not supported. .
- the handover mode information can also be on the information server that stores the virtual base station capability information.
- Step B The terminal sends a corresponding message to the virtual base station according to the handover mode information, so that the terminal switches from the virtual base station to the target base station in a corresponding handover manner.
- the handover request message is sent to the virtual base station to request the handover to the target base station, where the handover request message further includes one or more discovered by the terminal.
- the information of the target base station after receiving the handover request message, the virtual base station performs the handover according to the active handover in the existing specifications, and details are not described herein again;
- the handover mode information obtained by the terminal includes the information indicating the idle mode handover, send a request message to the virtual base station to enter the idle mode, request to enter the idle mode, and after the terminal switches the air interface, exit the idle mode from the target base station, and switch to On the target base station;
- the terminal selects a handover mode, and sends a corresponding request message to the virtual base station.
- the terminal may select a handover mode randomly, or may select according to a policy preset by the terminal.
- the network switching mode used in the embodiment of the present invention is that the terminal first obtains the handover mode information of the handover from the virtual base station to the target base station, and then sends a corresponding message to the virtual base station according to the handover mode information, and performs the terminal from the virtual base station to the target base station.
- the terminal can directly switch according to the switching mode supported by the virtual base station, and the method of the present invention is required to use the switching mode.
- the network switching method will reduce the switching time and improve the network switching efficiency.
- a network switching method is applicable to a method for a terminal to switch from a non-WiMAX network to a WiMAX network, and the information obtained by the handover mode in the embodiment is obtained in the process of the capability interaction between the terminal and the virtual base station, and the flowchart is as shown in FIG. 3 .
- Step 101 The terminal accesses the WiMAX network through the virtual base station, and after the ranging with the virtual base station, and before the pre-authentication with the virtual base station, the terminal needs to exchange capability information with the virtual base station, and the terminal sends a capability request message to the virtual base station;
- the capability request message may include capability information indicating that the handover mode of the terminal is switched from the virtual base station to the target base station; the terminal may add capability information indicating the handover mode of the terminal to switch from the virtual base station to the target base station to the capability request.
- the message such as a message body or a message header, a new cell may be added to the capability request message, and the indication information is added to the newly added cell.
- the capability request message may further include indication information indicating that other capabilities of the virtual base station are obtained; no indication information may be included in the capability request message.
- Step 102 After receiving the capability request message, the virtual base station adds, to the capability response message, the handover mode information of the terminal from the virtual base station to the target handover.
- the virtual base station may send the corresponding capability of the virtual base station to the terminal according to the indication information therein. If the indication information is not included, the virtual base station sends all the capability information to the terminal. In particular, for the capability information of the handover mode, the virtual base station may first obtain the handover mode information supported by itself, such as searching from the preset attribute information, and adding the obtained handover mode information to the capability response. The message body or message header of the message, etc., can also add a new cell to the capability response message, and add a new one to the newly added cell. Supported switching mode information.
- Step 103 Send the bearer message, that is, the capability response message, to the terminal, so that the terminal switches from the virtual base station to the target base station according to the handover mode information supported by the virtual base station.
- Step 104 The terminal receives the capability response message, and according to the handover mode information that the terminal includes the handover mode from the virtual base station to the target base station, after the pre-authentication and the network attachment registration process is completed, sending a corresponding message to the virtual base station, and performing the The step of the terminal switching from the virtual base station to the target base station.
- the virtual base station moves the terminal from the virtual base station to the target base station by using a bearer message, that is, a capability response message, in the process of continuing the capability interaction between the terminal and the virtual base station.
- the handover mode information of the handover is returned to the terminal, so that the terminal can directly switch according to the handover mode supported by the virtual base station.
- the network handover method in the embodiment of the present invention reduces the handover time. And improve network switching efficiency.
- a network switching method is applicable to a method for a terminal to switch from a non-WiMAX network to a WiMAX network, and the information obtained in the embodiment is that the virtual base station sends the information to the terminal through a registration response message, and the flowchart is as shown in FIG. 4, including :
- Step 201 The terminal accesses the WiMAX network through the virtual base station, and after the terminal performs the interaction process of ranging, pre-authentication, etc. with the virtual base station, sends a registration request message to the virtual base station to attach to the WiMAX network;
- the registration request message may include capability information indicating that the handover mode of the terminal is switched from the virtual base station to the target base station, and the terminal may add capability information indicating that the handover mode of the terminal is switched from the virtual base station to the target base station to the registration request.
- the message such as a message body or a message header, a new cell may be added to the registration request message, and the indication information is added to the newly added cell.
- Step 202 After receiving the registration request message, the virtual base station adds the handover mode information of the terminal to the target handover from the virtual base station to the bearer message, that is, the registration response message.
- the virtual base station may send the corresponding capability of the virtual base station to the terminal according to the indication information therein. If the indication information is not included, the virtual base station sends all the capability information to the terminal.
- the virtual base station may first obtain the handover mode information supported by itself, such as searching from the preset attribute information, etc.; The obtained switching mode information supported by the user is added to the message body or the message header of the registration response message, and a new cell may be added to the registration response message, and the switching mode information supported by the newly added cell is added.
- Step 203 Send the bearer message, that is, the registration response message, to the terminal, so that the terminal switches from the virtual base station to the target base station according to the handover mode information supported by the virtual base station.
- Step 204 The terminal receives the registration response message, and sends a corresponding message to the virtual base station according to the handover mode information that the terminal includes the handover mode from the virtual base station to the target base station, and performs the step of the terminal switching from the virtual base station to the target base station.
- the terminal in the process of entering the WiMAX network through the virtual base station, the terminal sends a registration request message to the virtual base station, and the virtual base station switches the terminal from the virtual base station to the target base station by using a bearer message, that is, a registration response message.
- the switching mode information is returned to the terminal, so that the terminal can directly switch according to the switching mode supported by the virtual base station, and the network switching method according to the embodiment of the present invention reduces the switching time as compared with the switching mode in the prior art. And improve network switching efficiency.
- a network switching method is applicable to a method for a terminal to switch from a non-WiMA network to a WiMA network, and the switching mode information obtained in this embodiment is a capability of storing a virtual base station in the process of discovering a virtual base station before the terminal enters the WiMAX network.
- the information server of the attribute information is sent to the terminal, and the flowchart is as shown in FIG. 5, including:
- Step 301 The terminal sends a query request message to the information server, where the query request message includes location information of the terminal and/or identifier information of the target base station, so that the information server searches for the terminal available according to the location information.
- the query request message includes location information of the terminal and/or identifier information of the target base station, so that the information server searches for the terminal available according to the location information.
- a base station and the virtual base station that can interact with the base station or causing the information server to search for the virtual base station that can interact with the target base station according to the identification information of the target base station;
- the information server may be an Information Server of a Dynamic Host Configuration Protocol (DHCP) server or an Network Discovery and Selection Function (ANDSF) mechanism, or a seamless handover information server or the like in the IEEE 802.21 MIH specification.
- DHCP Dynamic Host Configuration Protocol
- ANDSF Network Discovery and Selection Function
- the query request message is a corresponding request or query message of the DHCP protocol
- the ANDSF information server is used, the query request message is a query request message of the ANDSF mechanism
- the 802.21 MIH information server can be an MIH query request message.
- the query response message sent by the information server is corresponding to the query.
- the response message of the protocol to which the message belongs is not described here.
- Step 302 The information server receives the query request message, and searches for the corresponding virtual base station according to the location information of the terminal included in the query request message and/or the identifier information of the target base station.
- the information server queries the base station available to the terminal and the virtual base station information that can interact with the base station through the location of the terminal.
- the information server can find the virtual base station information that can interact with the target base station by using the identifier of the target base station.
- Step 303 The information server adds the handover mode information that the terminal switches from the found virtual base station to the target base station, and adds the information to the bearer message, that is, the query response message, and sends the information to the terminal.
- the information server may first obtain the handover mode information supported by the found virtual base station, and obtain the information from the attribute information preset by the virtual base station, obtain the capability attribute information of the virtual base station stored by itself, and the like;
- the switching mode information is added to the message body or the message header of the query response message, and a new cell may be added to the registration response message, and the switching mode information is added to the newly added cell.
- the address information of the found virtual base station may also be added; if only the terminal location information is provided in the query request message sent by the terminal, the candidate target available for the found terminal may also be added in the query response message.
- Information such as identification information of the base station.
- Step 304 The terminal receives the bearer message, that is, the query response message, and after entering the WiMAX network through the virtual base station, the switch mode information that the terminal switches from the found virtual base station to the target base station according to the query response message is performed. The handover of the base station to the target base station.
- the terminal before the terminal enters the WiMAX network through the virtual base station, the terminal sends an inquiry request message to the information server that stores information such as the attribute capability of the virtual base station, and the information server queries the response message through the bearer message.
- the switching mode information that is switched from the virtual base station to the target base station is returned to the terminal, so that the terminal can directly switch according to the switching mode supported by the virtual base station, and the network switching according to the embodiment of the present invention is used in comparison with the attempted handover mode in the prior art.
- the method reduces the switching time and improves the network switching efficiency; and because the interaction of the information is performed before the terminal enters the WiMAX network, the network switching time is further reduced, and the switching efficiency is improved.
- Equipment Embodiment 1 A terminal structure diagram is shown in FIG. 6, which includes:
- the mode information obtaining unit 10 is configured to obtain switching mode information that is used by the terminal supported by the virtual base station to switch from the virtual base station to the target base station, where the switching mode information includes information indicating active switching and/or information indicating idle mode switching;
- the mode information obtaining unit 10 may actively obtain the request from the virtual base station, or may be actively sent to the terminal by the virtual base station, and may also obtain information about other virtual base station capability information.
- the server is obtained.
- the switching mode information includes: information indicating that the virtual base station supports active handover, and/or information indicating that the virtual base station supports idle mode, and the information about the switching mode may be preset in the virtual base station, or may be in the virtual base station capability information. Information on the server.
- the switching unit 11 is configured to send, according to the handover mode information obtained by the mode information obtaining unit 10, a corresponding message to the virtual base station, so that the terminal switches from the virtual base station to the target base station in a corresponding handover manner.
- the handover mode information obtained by the mode information obtaining unit 10 includes the information indicating the active handover, the handover request message is actively sent to the virtual base station to request to switch to the target base station; if the mode information obtaining unit 10 obtains the handover mode.
- the information includes information indicating that the idle mode is switched, and then sends a request message to the virtual base station to enter the idle mode, requesting to enter the idle mode, and after the terminal switches the air interface, exiting the idle mode from the target base station, and switching to the target base station;
- the switching mode information obtained by the information obtaining unit 10 includes information indicating active switching and information indicating idle mode switching, and the switching unit 11 selects a switching mode and transmits a corresponding request message to the virtual base station.
- the mode information obtaining unit 10 may include: a capability sending unit 110, configured to send a capability request message to the virtual base station;
- the capability request message may include capability information indicating that the handover mode of the terminal is switched from the virtual base station to the target base station; the capability sending unit 110 may add capability information indicating that the handover mode of the terminal is switched from the virtual base station to the target base station.
- the capability request message such as a message body or a message header, a new cell may be added to the capability request message, and the indication information is added to the newly added cell.
- the capability request message may further include indication information indicating that other capabilities of the virtual base station are obtained; no indication information may be included in the capability request message.
- the capability receiving unit 120 is configured to receive the virtual base station according to the capability sending unit 110 And a capability response message sent by the capability request message, where the capability response message includes switching mode information that the terminal switches from the virtual base station to the target base station.
- the mode information obtaining unit 10 includes:
- the registration sending unit 130 is configured to send a registration request message to the virtual base station
- the registration request message may include capability information indicating that the handover mode of the terminal is switched from the virtual base station to the target base station, and the registration sending unit 130 may add capability information indicating that the handover mode of the terminal is switched from the virtual base station to the target base station.
- the registration request message such as a message body or a message header, a new cell may be added to the registration request message, and the indication information is added to the newly added cell.
- the registration receiving unit 140 is configured to receive a registration response message that is returned by the virtual base station according to the registration request message sent by the registration sending unit 130, where the registration response message includes the terminal switching from the virtual base station to the target base station. Switch mode information.
- the mode information obtaining unit 10 includes:
- the query sending unit 210 is configured to send a query request message to the information server, where the query request message includes location information of the terminal and/or identifier information of the target base station, so that the information server searches for the location information according to the location information. Determining a base station available to the terminal and the virtual base station that can interact with the base station; or causing the information server to search for the virtual base station that can interact with the target base station according to the identification information of the target base station;
- the query receiving unit 310 is configured to receive a query response message returned by the information server according to the query request message sent by the query sending unit 210, where the query response message includes the terminal switching from the virtual base station to the target base station. Switch mode information.
- the mode information obtaining unit 10 in the terminal of the embodiment of the present invention first obtains the switching mode information of the handover from the virtual base station to the target base station, and then the switching unit 11 sends a corresponding message to the virtual base station according to the switching mode information, and performs the terminal from the virtual base station to the target.
- the handover of the base station so that in the process of the terminal switching from the non-WiMAX network to the WiMA network, the terminal can directly switch according to the handover mode supported by the virtual base station, and the implementation of the present invention is compared with the handover mode of the terminal in the prior art.
- the network switching method of the terminal reduces the switching time and improves the network switching efficiency.
- a virtual base station the structure diagram shown in Figure 7, includes:
- a first adding unit 20 configured to use the virtual base station to support the terminal from the virtual base station to the target base Information about the switching mode of the station switching, added to the bearer message;
- a first sending switching unit 21 configured to send a bearer message added by the first adding unit 20 to the terminal, so that the terminal switches from the virtual base station according to the switching mode information supported by the virtual base station.
- Target base station configured to send a bearer message added by the first adding unit 20 to the terminal, so that the terminal switches from the virtual base station according to the switching mode information supported by the virtual base station.
- the virtual base station can also include:
- the first receiving unit 22 is configured to receive a capability request message or receive a registration request message of the terminal;
- the bearer message here may be a message such as a capability response message or a registration response message. If the first receiving unit 22 receives the capability request message or the registration request message, the first sending switching unit 21 may use the corresponding capability of the virtual base station according to the indication information therein. The bearer sends the message to the terminal. If the indication information is not included, the first sending switching unit 21 sends all the capability information to the terminal through the bearer message. In particular, for the capability information of the handover mode, the first adding unit 20 may first obtain the switching mode information supported by itself, such as searching from the preset attribute information, etc.; if the first receiving processing unit 22 receives the capability.
- the obtained switching mode information supported by itself is added to the capability response message, or in the case where the first receiving processing unit receives the registration request information, the obtained switching mode supported by itself is obtained.
- the information is added to the registration response message, such as the message body or the message header added to the capability response message or the registration response message, etc., and a new cell may be added in the capability response message or the registration response message, and added in the newly added cell.
- the switching mode information that you support.
- the first receiving unit 22 receives the capability request message or the registration request message sent by the terminal, and the second sending switching unit 21 uses the bearer message, that is, the capability response message or the registration response message, to The switching mode information that the base station switches to the target base station is returned to the terminal, so that the terminal can directly switch according to the switching mode supported by the virtual base station, which reduces the switching time and improves the network switching efficiency.
- Equipment Embodiment 3
- An information server includes:
- the second receiving processing unit 30 is configured to receive a query request message sent by the terminal, where the query request message includes location information of the terminal and/or identifier information of the target base station; according to the terminal included in the query request message Position information and/or identification information of the target base station to find a corresponding virtual base station; If the location information is included in the query request message, the second receiving processing unit 30 queries the base station available to the terminal and the virtual base station information that can interact with the base station through the location of the terminal.
- the second receiving processing unit 30 can find the virtual base station information that can interact with the target base station by using the identifier of the target base station.
- a second adding unit 31 configured to add information about a switching manner of the terminal supported by the virtual base station that is searched by the second receiving processing unit 30 from the virtual base station to the target base station, to add a query to the query In the response message;
- the second adding unit 31 may first obtain the switching mode information supported by the found virtual base station, such as searching from the attribute information preset by the virtual base station, and obtaining the capability attribute information of the virtual base station stored by itself, and the like; The obtained switching mode information is added to the message body or the message header of the query response message, and a new cell may be added to the registration response message, and the switching mode information is added to the newly added cell.
- the address information of the found virtual base station may also be added; if only the terminal location information is provided in the query request message sent by the terminal, the candidate target available for the found terminal may also be added in the query response message.
- Information such as identification information of the base station.
- the second sending switching unit 32 is configured to send the query response message added by the second adding unit 31 to the terminal, so that the terminal switches from the virtual base station to the target according to the switching mode information supported by the virtual base station. Base station.
- the second receiving processing unit 30 receives the terminal sending the query request message, and the second sending switching unit 32 returns the switching mode information of the terminal switching from the virtual base station to the target base station by using the bearer message, that is, the query response message.
- the terminal can directly switch according to the handover mode supported by the virtual base station, which reduces the handover time and improves the network handover efficiency; and since the interaction of the information is performed before the terminal enters the WiMA network, the network can be reduced. Switching time, improve the efficiency of switching.
- a network switching system includes: a terminal 100 and a virtual base station
- the virtual base station 200 is configured to add, to the bearer message, handover mode information that is used by the virtual base station to switch the terminal from the virtual base station to the target base station, and send the bearer message to the terminal. End 100;
- the terminal 100 is configured to receive a bearer message sent by the virtual base station 200, and obtain switching mode information that the terminal supported by the virtual base station switches from the virtual base station to the target base station, where the switching mode information includes information indicating active switching. And/or information indicating idle mode switching; transmitting, according to the handover mode information, a corresponding message to the virtual base station, so that the terminal switches from the virtual base station to the target base station.
- the network switching mode used in the embodiment of the present invention is that the terminal first obtains the handover mode information that is switched from the virtual base station to the target base station, and then sends a corresponding message to the virtual base station according to the handover mode information, and performs network switching, so that the terminal is in the terminal.
- the terminal In the process of switching from a non-WiMAX network to a WiMAX network, the terminal can directly switch according to the switching mode supported by the virtual base station.
- the network switching method according to the embodiment of the present invention is reduced. Switch time and improve network switching efficiency.
- the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).
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Description
网络切换方法、 系统及设备
技术领域
本发明涉及通信技术领域， 尤其涉及一种网络切换方法、 系统及设备。 背景技术 参考图 1 , 在如今的通信技术领域中， 在从非微波存取全球互通的宽带无 线接入技术 ( Worldwide Interoperability for Microwave Access, WiMAX )网络 向 WiMAX网络切换时，终端使用单射频切换方式，终端先通过当前非 WiMAX 网络中的隧道与一个虚拟 WiMAX基站进行测距、 基站能力协商、 预认证和附 着网络的交互， 从而进入 WiMA 网络； 然后釆用主动切换方式或空闲模式切 换方式， 从虚拟基站切换到目标基站或进入 WiMAX网络的空闲模式； 终端在 切换成 WIMAX网络的射频后，再从空口上从目标基站进行 WiMAX网络重入， 完成网络切换过程。
在主动切换方式下， 终端主动发送切换请求消息给虚拟基站， 在切换请 求消息中包含终端发现的一个或多个候选目标基站的信息； 虚拟基站接收到 切换请求消息后， 与各个候选目标基站交互， 让各候选目标基站为终端做切 换准备工作； 当终端收到虚拟基站的切换响应消息后， 向虚拟基站发送切换 指示消息， 指定一个最终确定的切换目标基站； 当终端在空口上从非 WiMAX 射频切换到 WiMAX射频之后 , 终端与确定的目标基站进行测距等操作完成 WiMAX网络重入， 最终完成切换过程。 终端在这种切换方式下进行射频切换 后， 与目标基站进行网络重入的步驟， 一般包括测距、 能力协商等， 不需要 再进行完整的认证。
在空闲模式切换方式下， 终端发送请求消息给虚拟基站， 请求进入空闲 模式； 虚拟基站返回确定进入空闲模式的响应消息， 并通知网络作适当处理， 将该终端记录为空闲模式， 暂时不向目标基站切换； 在空闲模式下， 网络将 终端相关的资源尽可能释放， 仅保留必不可少的信息， 例如认证信息、 附着 的基站信息等。 当终端从空口上切换到 WiMAX射频后 , 与终端选定的目标基 站进行网络重入时在测距请求中可以指示退出空闲模式， 之后网络对终端作 退出空闲模式的处理， 不需要再进行完整的认证。 在这个过程中， 终端没有 做切换基站的动作， 但通过从虚拟基站进入空闲模式， 之后从目标基站退出 空闲模式， 实际达到了从虚拟基站向目标基站切换的目的。
在对上述现有技术进行实践和研究的过程中， 本发明的发明人发现： 在终端从非 WiMAX网络切换到 WiMAX时， 采用主动切换或空闲模式 切换， 但采用哪种方法进行切换， 是部署在虚拟基站上， 由虚拟基站决定的， 终端则尝试先进行一种方式切换， 如果被虚拟基站拒绝后， 再进行另一种方 式切换， 这样会增加切换时间， 效率不高。 发明内容
本发明的实施例提供了一种网络切换方法、 系统及设备， 提高网络切换 效率 , 减少网络切换时间。
本发明的实施例釆用如下技术方案：
本发明实施例提供一种网络切换方法， 包括：
获得虚拟基站支持的终端从虚拟基站向目标基站切换的切换方式信息， 所述切换方式信息包括指示主动切换的信息和 /或指示空闲模式切换的信息； 根据所述切换方式信息， 向所述虚拟基站发送相应的消息， 以便所述终 端以相应的切换方式从虚拟基站切换到目标基站。 本发明的实施例还提供了一种网络切换方法， 包括：
将虚拟基站支持的终端从虚拟基站向目标基站切换的切换方式信息， 添 力 P到 载消息中；
将所述承载消息发送给所述终端 , 以便所述终端根据所述虚拟基站支持 的切换方式信息， 从所述虚拟基站切换到目标基站。
本发明的实施例还提供了一种终端， 包括：
方式信息获得单元， 用于获得虚拟基站支持的终端从虚拟基站向目标基 站切换的切换方式信息， 所述切换方式信息包括指示主动切换的信息和 /或指 示空闲模式切换的信息；
切换单元， 用于才艮据所述方式信息获得单元获得的切换方式信息， 向所 述虚拟基站发送相应的消息 , 以便所述终端以相应的切换方式从虚拟基站切 换到目标基站。
本发明的实施例还提供了一种虚拟基站， 包括：
第一添加单元， 用于将所述虚拟基站支持的终端从虚拟基站向目标基站 切换的切换方式的信息， 添加到承载消息中；
第一发送切换单元， 用于将所述第一添加单元添加后的承载消息发送给
所述终端， 以便所述终端根据所述虚拟基站支持的切换方式信息， 从所述虚 拟基站切换到目标基站。
本发明的实施例还提供了一种信息服务器， 包括：
第二接收处理单元， 用于接收终端发送的查询请求消息， 所述查询请求 消息中包括所述终端的位置信息和 /或目标基站的标识信息； 根据所述查询请 求消息中包含的终端的位置信息和 /或目标基站的标识信息查找相应的虚拟基 站；
第二添加单元， 用于将所述第二接收处理单元查找到的虚拟基站支持的 所述终端从所述虚拟基站向目标基站切换的切换方式的信息， 添加到查询响 应消息中；
第二发送切换单元， 用于将所述第二添加单元添加后的查询响应消息发 送给所述终端， 以便所述终端根据所述虚拟基站支持的切换方式信息， 从虚 拟基站切换到目标基站。
本发明的实施例还提供了一种信息服务器， 包括：
第二接收处理单元， 用于接收终端发送的查询请求消息， 所述查询请求 消息中包括所述终端的位置信息和 /或目标基站的标识信息； 根据所述查询请 求消息中包含的终端的位置信息和 /或目标基站的标识信息查找相应的虚拟基 站；
第二添加单元， 用于将所述第二接收处理单元查找到的虚拟基站支持的 所述终端从所述虚拟基站向目标基站切换的切换方式的信息， 添加到查询响 应消息中；
第二发送切换单元， 用于将所述第二添加单元添加后的查询响应消息发 送给所述终端， 以便所述终端根据所述虚拟基站支持的切换方式信息， 从虚 拟基站切换到目标基站。 本发明实施例还提供一种网络切换系统， 包括： 终端和虚拟基站； 所述虚拟基站， 用于将所述虚拟基站支持的终端从虚拟基站向目标基站 切换的切换方式信息， 添加到承载消息中； 将所述承载消息发送给所述终端； 所述终端， 用于接收所述虚拟基站发送的承载消息， 获得所述虚拟基站 支持的终端从虚拟基站向目标基站切换的切换方式信息， 所述切换方式信息 包括指示主动切换的信息和 /或指示空闲模式切换的信息； 根据所述切换方式 信息， 向所述虚拟基站发送相应的消息， 以便所述终端从虚拟基站切换到目
标基站。
可见， 本发明实施例采用的网络切换方式是终端先获得从虚拟基站切换 到目标基站的切换方式信息， 然后根据切换方式信息， 发送相应的消息给虚 拟基站， 进行终端从虚拟基站向目标基站的切换， 这样在终端从非 WiMAX 网络切换到 WiMAX 网络的过程中， 终端可以直接根据虚拟基站上支持的切 换方式进行切换， 和现有技术中需要尝试切换方式相比， 釆用本发明实施例 的网络切换方法， 会减少切换时间， 提高网络切换效率。 附图说明
施例或现有技术描述中所需要使用的附图作简单地介绍， 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是现有技术中终端从非 WiMAX网络切换到 WiMAX网络的切换方法 的流程图；
图 2是本发明方法实施例提供的网络切换方法的流程图；
图 3是本发明方法实施例一提供的网络切换方法的流程图；
图 4是本发明方法实施例二提供的网络切换方法的流程图；
图 5是本发明方法实施例三提供的网络切换方法的流程图；
图 6是本发明设备实施例一提供的终端的结构示意图；
图 7是本发明设备实施例二提供的虚拟基站的结构示意图；
图 8是本发明设备实施例三提供的信息服务器的结构示意图；
图 9是本发明系统实施例提供的网络切换系统的结构示意图。 具体实施方式
下面结合附图对本发明实施例多媒体通信中多路媒体流传输和接收的方 法、 装置和系统进行详细描述。
应当明确， 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作出创造性劳 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。 方法实施例
一种网络切换方法 , 适用于终端从非 WiMAX网络切换到 WiMAX网络的 方法， 流程图如图 2所示， 包括：
步驟 A、 终端获得虚拟 WiMAX基站（以下简称虚拟基站） 支持的， 终端 从虚拟基站向目标基站切换的切换方式信息；
终端在获得从虚拟基站向目标基站切换的切换方式信息时， 可以主动向 虚拟基站进行请求而得到， 或接收由虚拟基站主动发给终端的， 还可以从其 他储存虚拟基站能力信息的信息服务器获得。
其中切换方式信息包括： 指示该虚拟基站支持主动切换的信息和 /或指示 该虚拟基站支持空闲模式的信息等， 若为指示虚拟基站支持主动切换的信息， 则终端可以通过主动切换过程从虚拟基站直接向目标基站切换； 若为指示虚 拟基站支持空闲模式的信息， 则终端可以通过虚拟基站进入空闲模式， 之后 从目标基站进行网络重入时可以退出空闲模式， 以此实现从虚拟基站到目标 基站的切换。
可以理解， 这些切换方式信息可以是预置在虚拟基站中， 可以通过方式 字来表示其支持的能力， 例如用 1表示支持主动切换， 用 2表示支持空闲模式， 用 3表示两种都支持。 也可以单独使用其支持的能力的各自的标志位， 当某种 能力对应的标志位取值为 1时表示支持这种能力， 当对应的标志位取值为 0时， 表示不支持这种能力。 切换方式信息也可以在储存虚拟基站能力信息的信息 服务器上。
步驟 B、 终端根据所述切换方式信息， 向所述虚拟基站发送相应的消息， 以便所述终端以相应的切换方式从虚拟基站切换到目标基站。
可以理解， 如果终端获得的切换方式信息包括指示主动切换的信息， 则 主动向所述虚拟基站发送切换请求消息， 请求切换到目标基站上， 其中在切 换请求消息中还包括终端发现的一个或多个目标基站的信息； 虚拟基站接收 到切换请求消息后， 按照现有规范中主动切换的方式进行切换， 在此不再赘 述；
如果终端获得的切换方式信息包括指示空闲模式切换的信息， 则向所述 虚拟基站发送进入空闲模式的请求消息， 请求进入空闲模式， 并在终端切换 空口后， 从目标基站退出空闲模式， 切换到目标基站上；
如果终端获得的切换方式信息包括指示主动切换的信息和指示空闲模式
切换的信息， 则终端选择一种切换方式， 并向所述虚拟基站发送相应的请求 消息， 在进行选择一种切换方式时， 可以随机选择， 也可以根据终端预置的 策略进行选择。
可见， 本发明实施例釆用的网络切换方式是终端先获得从虚拟基站切换 到目标基站的切换方式信息， 然后根据切换方式信息， 发送相应的消息给虚 拟基站， 进行终端从虚拟基站向目标基站的切换， 这样在终端从非 WiMAX网 络切换到 WiMAX网络的过程中， 终端可以直接根据虚拟基站上支持的切换方 式进行切换， 和现有技术中需要尝试切换方式相比， 采用本发明实施例的网 络切换方法， 会减少切换时间， 且提高网络切换效率。
方法实施例一
一种网络切换方法 , 适用于终端从非 WiMAX网络切换到 WiMAX网络的 方法， 且本实施例中获得切换方式信息是在终端和虚拟基站的能力交互过程 中获得， 流程图如图 3所示， 包括：
步驟 101、 终端通过虚拟基站接入 WiMAX网络， 在与虚拟基站进行测距 后之后， 且在与虚拟基站进行预认证之前， 终端需要和虚拟基站交换能力信 息， 终端发送能力请求消息给虚拟基站；
可以理解， 在能力请求消息中可以包括指示获得终端从虚拟基站向目标 基站切换的切换方式的能力信息； 终端可以将指示获得终端从虚拟基站向目 标基站切换的切换方式的能力信息添加到能力请求消息中， 如消息体或消息 头等， 也可以在能力请求消息中增加新的信元， 在新增加的信元中添加该指 示信息。 可以理解的是， 在能力请求消息中还可以包括指示获得虚拟基站其 他能力的指示信息； 在能力请求消息中可以不包括任何指示信息。
步驟 102、 虚拟基站在接收到能力请求消息后， 将终端从虚拟基站向目标 切换的切换方式信息添加到^^载消息即能力响应消息中；
虚拟基站接收到能力请求消息后， 可以根据其中的指示信息将虚拟基站 的相应能力发送给终端， 如果其中不包括指示信息， 虚拟基站则将其全部能 力信息都发送给终端。 特别地， 对于切换方式的能力信息， 虚拟基站可以先 得到自己所支持的切换方式信息， 如从预置的属性信息中查找得到等； 并将 得到的自己所支持的切换方式信息添加到能力响应消息的消息体或消息头 等， 也可以在能力响应消息中增加新的信元， 在新增加的信元中添加自己所
支持的切换方式信息。
步骤 103、 将所述承载消息即能力响应消息发送给终端， 以便终端根据所 述虚拟基站支持的切换方式信息， 从虚拟基站切换到目标基站；
步驟 104、 终端接收到能力响应消息， 根据其中包含的终端从虚拟基站向 目标基站切换的切换方式信息， 在完成预认证、 网络附着注册过程后向所述 虚拟基站发送相应的消息， 进行所述终端从虚拟基站切换到目标基站的步驟。
可见本实施例的网络切换方法中 , 在通过虚拟基站进入 WiMAX网络的过 程中， 终端在和虚拟基站继续能力交互的过程中， 虚拟基站通过承载消息即 能力响应消息将终端从虚拟基站向目标基站切换的切换方式信息返回给终 端， 这样终端可以直接根据虚拟基站上支持的切换方式进行切换， 和现有技 术中需要尝试切换方式相比， 采用本发明实施例的网络切换方法， 会减少切 换时间， 且提高网络切换效率。 方法实施例二
一种网络切换方法 , 适用于终端从非 WiMAX网络切换到 WiMAX网络的 方法 , 且本实施例中获得切换方式信息是虚拟基站通过注册响应消息发送给 终端的， 流程图如图 4所示， 包括：
步驟 201、 终端通过虚拟基站接入 WiMAX网络， 在该终端与虚拟基站进 行测距、 预认证等的交互过程之后， 发送注册请求消息给虚拟基站以附着到 WiMAX网络；
可以理解， 在注册请求消息中可以包括指示获得终端从虚拟基站向目标 基站切换的切换方式的能力信息， 终端可以将指示获得终端从虚拟基站向目 标基站切换的切换方式的能力信息添加到注册请求消息中， 如消息体或消息 头等， 也可以在注册请求消息中增加新的信元， 在新增加的信元中添加该指 示信息。
步驟 202、 虚拟基站在接收到注册请求消息后， 将终端从虚拟基站向目标 切换的切换方式信息添加到承载消息即注册响应消息中；
虚拟基站接收到注册请求消息后， 可以根据其中的指示信息将虚拟基站 的相应能力发送给终端， 如果其中不包括指示信息， 虚拟基站则将其全部能 力信息都发送给终端。 特别地， 对于切换方式的能力信息， 虚拟基站可以先 得到自己所支持的切换方式信息， 如从预置的属性信息中查找得到等； 并将
得到的自己所支持的切换方式信息添加到注册响应消息的消息体或消息头 等， 也可以在注册响应消息中增加新的信元， 在新增加的信元中添加自己所 支持的切换方式信息。
步驟 203、 将所述承载消息即注册响应消息发送给终端， 以便终端根据所 述虚拟基站支持的切换方式信息， 从虚拟基站切换到目标基站；
步驟 204、 终端接收到注册响应消息， 根据其中包含的终端从虚拟基站向 目标基站切换的切换方式信息， 向所述虚拟基站发送相应的消息， 进行所述 终端从虚拟基站切换到目标基站的步骤。
可见本实施例的网络切换方法中， 在通过虚拟基站进入 WiMAX网络的过 程中， 终端发送注册请求消息给虚拟基站， 而虚拟基站通过承载消息即注册 响应消息 , 将终端从虚拟基站向目标基站切换的切换方式信息返回给终端 , 这样终端可以直接根据虚拟基站上支持的切换方式进行切换， 和现有技术中 需要尝试切换方式相比， 釆用本发明实施例的网络切换方法， 会减少切换时 间， 且提高网络切换效率。
方法实施例三
一种网络切换方法， 适用于终端从非 WiMA 网络切换到 WiMA 网络的 方法， 且本实施例中获得切换方式信息是在终端进入 WiMAX网络之前， 发现 虚拟基站的过程中 , 由存储虚拟基站的能力属性信息的信息服务器发送给终 端的， 流程图如图 5所示， 包括：
步驟 301、 终端发送查询请求消息给信息服务器， 在查询请求消息中包括 所述终端的位置信息和 /或目标基站的标识信息； 以使所述信息服务器根据所 述位置信息查找所述终端可用的基站以及可与该基站交互的所述虚拟基站； 或使所述信息服务器根据所述目标基站的标识信息查找可与所述目标基站交 互的所述虚拟基站；
信息服务器可以是动态主机配置协议 ( DHCP )服务器或网絡发现和选择 功能（ANDSF )机制的信息服务器， 或者 IEEE 802.21MIH规范中的无缝切换 信息服务器等。 当使用 DHCP服务器时， 所述的查询请求消息是 DHCP协议的 相应请求或查询消息； 当使用 ANDSF信息服务器时， 所述的查询请求消息是 ANDSF机制的查询请求消息； 当使用 802.21MIH信息服务器时 , 可以是 MIH 查询请求消息。 后续所述信息服务器发送的查询响应消息是对应所述查询请
求消息所属协议的响应消息， 不再赘述。
步骤 302、 信息服务器接收到查询请求消息， 根据所述查询请求消息中包 含的终端的位置信息和 /或目标基站的标识信息查找相应的虚拟基站；
如果终端在查询请求消息中包括了位置信息， 则信息服务器通过终端的 位置查询到终端可用的基站以及可与该基站交互的虚拟基站信息。
如果终端在查询请求消息中包括了终端已确定的目标基站的信息， 则信 息服务器通过目标基站的标识可以查找到可与该目标基站交互的虚拟基站信 息。
步驟 303、 信息服务器将所述终端从查找到的虚拟基站向目标基站切换的 切换方式信息， 添加到承载消息即查询响应消息中， 发送给终端；
信息服务器可以先得到查找到的虚拟基站所支持的切换方式信息， 如从 该虚拟基站预置的属性信息中查找得到， 从自身存储的该虚拟基站的能力属 性信息中得到等； 并将得到的切换方式信息添加到查询响应消息的消息体或 消息头等， 也可以在注册响应消息中增加新的信元， 在新增加的信元中添加 切换方式信息。
可以理解， 在查询响应消息中， 还可以添加查找到的虚拟基站的地址信 息； 如果终端发送的查询请求消息中仅提供终端位置信息， 在查询响应消息 中还可以添加找到的终端可用的候选目标基站的标识信息等信息。
步驟 304、 终端接收到所述承载消息即查询响应消息， 在通过虚拟基站进 入 WiMAX网络后 , 才艮据查询响应消息中终端从查找到的虚拟基站向目标基站 切换的切换方式信息， 进行从虚拟基站向目标基站的切换。
可见本实施例的网络切换方法中 , 在终端通过虚拟基站进入 WiMAX网络 之前， 终端发送查询请求消息给存储虚拟基站属性能力等信息的信息服务器， 而信息服务器通过承载消息即查询响应消息， 将终端从虚拟基站向目标基站 切换的切换方式信息返回给终端， 这样终端可以直接根据虚拟基站上支持的 切换方式进行切换， 和现有技术中需要尝试切换方式相比， 采用本发明实施 例的网络切换方法， 会减少切换时间， 且提高网络切换效率； 且由于这些信 息的交互是在终端进入 WiMAX网络之前进行的 , 从而更能减少网络切换的时 间， 提高切换的效率。 设备实施例一
一种终端， 结构示意图如图 6所示， 包括：
方式信息获得单元 10, 用于获得虚拟基站支持的终端从虚拟基站向目标 基站切换的切换方式信息， 所述切换方式信息包括指示主动切换的信息和 /或 指示空闲模式切换的信息；
方式信息获得单元 10在获得从虚拟基站向目标基站切换的切换方式信息 时， 可以主动向虚拟基站进行请求而得到， 或由虚拟基站主动发给终端， 还 可以从其他存储虚拟基站能力信息的信息服务器获得。 而切换方式信息包括： 指示该虚拟基站支持主动切换的信息和 /或指示该虚拟基站支持空闲模式的信 息等， 这些切换方式信息可以是预置在虚拟基站中， 也可以在储存虚拟基站 能力信息的信息服务器上。
切换单元 11 , 用于根据所述方式信息获得单元 10获得的切换方式信息， 向所述虚拟基站发送相应的消息 , 以便所述终端以相应的切换方式从虚拟基 站切换到目标基站。
可以理解， 如果方式信息获得单元 10获得的切换方式信息包括指示主动 切换的信息， 则主动向所述虚拟基站发送切换请求消息， 请求切换到目标基 站上； 如果方式信息获得单元 10获得的切换方式信息包括指示空闲模式切换 的信息， 则向所述虚拟基站发送进入空闲模式的请求消息， 请求进入空闲模 式， 并在终端切换空口后， 从目标基站退出空闲模式， 切换到目标基站上； 如果方式信息获得单元 10获得的切换方式信息包括指示主动切换的信息和指 示空闲模式切换的信息， 则切换单元 11选择一种切换方式， 并向所述虚拟基 站发送相应的请求消息。
可以理解， 在一个具体的实施例中， 方式信息获得单元 10可以包括： 能力发送单元 110, 用于发送能力请求消息给所述虚拟基站；
可以理解， 在能力请求消息中可以包括指示获得终端从虚拟基站向目标 基站切换的切换方式的能力信息； 能力发送单元 110可以将指示获得终端从虚 拟基站向目标基站切换的切换方式的能力信息添加到能力请求消息中， 如消 息体或消息头等， 也可以在能力请求消息中增加新的信元， 在新增加的信元 中添加该指示信息。 可以理解的是， 在能力请求消息中还可以包括指示获得 虚拟基站其他能力的指示信息； 在能力请求消息中可以不包括任何指示信息。
能力接收单 120元， 用于接收所述虚拟基站根据所述能力发送单元 110发
送的能力请求消息返回的能力响应消息， 所述能力响应消息中包括所述终端 从虚拟基站向目标基站切换的切换方式信息。
在另一个具体的实施例中， 方式信息获得单元 10包括：
注册发送单元 130, 用于发送注册请求消息给所述虚拟基站；
可以理解， 在注册请求消息中可以包括指示获得终端从虚拟基站向目标 基站切换的切换方式的能力信息 , 注册发送单元 130可以将指示获得终端从虚 拟基站向目标基站切换的切换方式的能力信息添加到注册请求消息中， 如消 息体或消息头等， 也可以在注册请求消息中增加新的信元， 在新增加的信元 中添加该指示信息。
注册接收单元 140, 用于接收所述虚拟基站根据所述注册发送单元 130发 送的注册请求消息返回的注册响应消息 , 所述注册响应消息中包括所述终端 从所述虚拟基站向目标基站切换的切换方式信息。
在再一个具体的实施例中， 方式信息获得单元 10包括：
查询发送单元 210, 用于发送查询请求消息给信息服务器， 所述查询请求 消息中包括所述终端的位置信息和 /或目标基站的标识信息， 以使所述信息服 务器根据所述位置信息查找所述终端可用的基站以及可与该基站交互的所述 虚拟基站； 或使所述信息服务器根据所述目标基站的标识信息查找可与所述 目标基站交互的所述虚拟基站；
查询接收单元 310, 用于接收所述信息服务器根据所述查询发送单元 210 发送的查询请求消息返回的查询响应消息 , 所述查询响应消息中包括所述终 端从所述虚拟基站向目标基站切换的切换方式信息。
本发明实施例的终端中方式信息获得单元 10先获得从虚拟基站切换到目 标基站的切换方式信息， 然后切换单元 11根据切换方式信息， 发送相应的消 息给虚拟基站， 进行终端从虚拟基站向目标基站的切换， 这样在终端从非 WiMAX网络切换到 WiMA 网络的过程中， 终端可以直接根据虚拟基站上支 持的切换方式进行切换， 和现有技术中终端需要尝试切换方式相比， 采用本 发明实施例的终端的网络切换方法， 会减少切换时间， 且提高网络切换效率。 设备实施例二
一种虚拟基站， 结构示意图如图 7所示， 包括：
第一添加单元 20, 用于将所述虚拟基站支持的终端从虚拟基站向目标基
站切换的切换方式的信息 , 添加到承载消息中；
第一发送切换单元 21 , 用于将所述第一添加单元 20添加后的承载消息发 送给所述终端， 以便所述终端根据所述虚拟基站支持的切换方式信息， 从所 述虚拟基站切换到目标基站。
可以理解， 虚拟基站还可以包括：
第一接收单元 22, 用于接收能力请求消息或接收所述终端的注册请求消 息；
这里的承载消息可以是能力响应消息或注册响应消息等消息， 如果第一 接收单元 22接收到能力请求消息或注册请求消息， 第一发送切换单元 21可以 根据其中的指示信息将虚拟基站的相应能力通过承载消息发送给终端， 如果 其中不包括指示信息 , 第一发送切换单元 21则将其全部能力信息都通过承载 消息发送给终端。 特别地， 对于切换方式的能力信息， 第一添加单元 20可以 先得到自己所支持的切换方式信息， 如从预置的属性信息中查找得到等； 如 果在所述第一接收处理单元 22接收能力请求信息的情况下， 将得到的自己所 支持的切换方式信息添加到能力响应消息， 或在所述第一接收处理单元接收 所述注册请求信息的情况下， 将得到的自己所支持的切换方式信息添加到注 册响应消息中 , 如添加到能力响应消息或注册响应消息的消息体或消息头等， 也可以在能力响应消息或注册响应消息中增加新的信元， 在新增加的信元中 添加自己所支持的切换方式信息。
可见本实施例的虚拟基站中， 第一接收单元 22接收到终端发送的能力请 求消息或注册请求消息， 而第二发送切换单元 21通过承载消息即能力响应消 息或注册响应消息， 将终端从虚拟基站向目标基站切换的切换方式信息返回 给终端， 这样终端可以直接根据虚拟基站上支持的切换方式进行切换， 会减 少切换时间， 且提高网络切换效率。 设备实施例三
一种信息服务器， 结构示意图如图 8所示， 包括：
第二接收处理单元 30, 用于接收终端发送的查询请求消息， 所述查询请 求消息中包括所述终端的位置信息和 /或目标基站的标识信息； 根据所述查询 请求消息中包含的终端的位置信息和 /或目标基站的标识信息查找相应的虚拟 基站；
如果在查询请求消息中包括了位置信息， 则第二接收处理单元 30通过终 端的位置查询到终端可用的基站以及可与该基站交互的虚拟基站信息。
如果在查询请求消息中包括了终端已确定的目标基站的信息， 则第二接 收处理单元 30通过目标基站的标识可以查找到可与该目标基站交互的虚拟基 站信息。
第二添加单元 31 , 用于将所述从所述第二接收处理单元 30查找到的虚拟 基站支持的所述终端从所述虚拟基站向目标基站切换的切换方式的信息， 添 力口到查询响应消息中；
第二添加单元 31可以先得到查找到的虚拟基站所支持的切换方式信息 , 如从该虚拟基站预置的属性信息中查找得到， 从自身存储的该虚拟基站的能 力属性信息中得到等； 并将得到的切换方式信息添加到查询响应消息的消息 体或消息头等， 也可以在注册响应消息中增加新的信元， 在新增加的信元中 添加切换方式信息。
可以理解， 在查询响应消息中 , 还可以添加查找到的虚拟基站的地址信 息； 如果终端发送的查询请求消息中仅提供终端位置信息， 在查询响应消息 中还可以添加找到的终端可用的候选目标基站的标识信息等信息。
第二发送切换单元 32, 用于将所述第二添加单元 31添加后的查询响应消 息发送给所述终端 , 以便所述终端根据所述虚拟基站支持的切换方式信息 , 从虚拟基站切换到目标基站。
本实施例的信息服务器中， 第二接收处理单元 30接收到终端发送查询请 求消息， 第二发送切换单元 32通过承载消息即查询响应消息， 将终端从虚拟 基站向目标基站切换的切换方式信息返回给终端， 这样终端可以直接根据虚 拟基站上支持的切换方式进行切换， 会减少切换时间， 且提高网络切换效率； 且由于这些信息的交互是在终端进入 WiMA 网络之前进行的 , 从而更能减少 网络切换的时间， 提高切换的效率。 系统实施例
一种网络切换系统， 结构示意图如图 9所示， 包括： 终端 100和虚拟基站
200;
所述虚拟基站 200, 用于所述虚拟基站支持的将终端从虚拟基站向目标基 站切换的切换方式信息， 添加到承载消息中； 将所述承载消息发送给所述终
端 100;
所述终端 100, 用于接收所述虚拟基站 200发送的承载消息， 获得所述虚 拟基站支持的终端从虚拟基站向目标基站切换的切换方式信息， 所述切换方 式信息包括指示主动切换的信息和 /或指示空闲模式切换的信息； 根据所述切 换方式信息， 向所述虚拟基站发送相应的消息， 以便所述终端从虚拟基站切 换到目标基站。
可见， 本发明实施例釆用的网络切换方式是终端先获得从虚拟基站切换 到目标基站的切换方式信息， 然后根据切换方式信息， 发送相应的消息给虚 拟基站， 进行网络的切换， 这样在终端从非 WiMAX网络切换到 WiMAX网 络的过程中， 终端可以直接根据虚拟基站上支持的切换方式进行切换， 和现 有技术中需要尝试切换方式相比， 采用本发明实施例的网络切换方法， 会减 少切换时间， 且提高网络切换效率。
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流 程， 是可以通过计算机程序来指令相关的硬件来完成， 所述的程序可存储于 一计算机可读取存储介质中， 该程序在执行时， 可包括如上述各方法的实施 例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储记忆体（ Read-Only Memory, ROM )或随机存储记忆体 ( Random Access Memory, RAM )等。
以上所述， 仅为本发明的具体实施方式， 但本发明的保护范围并不局限 于此， 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内， 可轻易 想到的变化或替换， 都应涵盖在本发明的保护范围之内。 因此， 本发明的保 护范围应所述以权利要求的保护范围为准。
Claims
1、 一种网络切换方法， 其特征在于， 包括：
获得虚拟基站支持的终端从虚拟基站向目标基站切换的切换方式信息， 所 述切换方式信息包括指示主动切换的信息和 /或指示空闲模式切换的信息；
根据所述切换方式信息， 向所述虚拟基站发送相应的消息， 以便所述终端 以相应的切换方式从虚拟基站切换到目标基站。
2、 如权利要求 1所述的方法， 其特征在于， 所述获得终端从虚拟基站向目 标基站切换的切换方式信息具体包括：
发送能力请求消息给所述虚拟基站；
接收所述虚拟基站根据所述能力请求消息返回的能力响应消息， 所述能力 响应消息中包括所述终端从所述虚拟基站向目标基站切换的切换方式信息。
3、 如权利要求 1所述的方法， 其特征在于， 所述获得终端从虚拟基站向目 标基站切换的切换方式信息具体包括：
发送注册请求消息给所述虚拟基站；
接收所述虚拟基站根据所述注册请求消息返回的注册响应消息， 所述注册 响应消息中包括所述终端从所述虚拟基站向目标基站切换的切换方式信息。
4、 如权利要求 1所述的方法， 其特征在于， 所述获得终端从虚拟基站向目 标基站切换的切换方式信息具体包括：
发送查询请求消息给信息服务器， 所述查询请求消息中包括所述终端的位 置信息和 /或目标基站的标识信息； 以使所述信息服务器根据所述位置信息查找 所述终端可用的基站以及可与该基站交互的所述虚拟基站； 或使所述信息服务 器根据所述目标基站的标识信息查找可与所述目标基站交互的所述虚拟基站； 接收所述信息服务器根据所述查询请求消息返回的查询响应消息 , 所述查 询响应消息中包括所述终端从所述虚拟基站向目标基站切换的切换方式信息。
5、 如权利要求 1到 4任一项所述的方法， 其特征在于， 所述根据所述切换方 式信息 , 向所述虚拟基站发送相应的消息包括：
若所述切换方式信息包括指示主动切换的信息， 则向所述虚拟基站发送切 换请求消息； 或，
若所述切换方式信息包括指示空闲模式切换的信息， 则向所述虚拟基站发 送进入空闲模式的请求消息； 或， 若所述切换方式信息包括指示主动切换的信息和指示空闲模式切换的信 息， 则选择一种切换方式， 并向所述虚拟基站发送相应的请求消息。
6、 一种网络切换方法， 其特征在于， 包括：
将虚拟基站支持的终端从虚拟基站向目标基站切换的切换方式信息， 添加 到承载消息中；
将所述承载消息发送给所述终端 , 以便所述终端根据所述虚拟基站支持的 切换方式信息， 从所述虚拟基站切换到目标基站。
7、 如权利要求 6所述的方法， 其特征在于， 所述终端从虚拟基站向目标基 站切换的切换方式信息， 添加到承载消息中之前还包括：
接收能力请求消息， 则将终端从虚拟基站向目标基站切换的切换方式信息 添加到承载消息具体为： 将终端从虚拟基站向目标基站切换的切换方式信息添 加到能力响应消息中； 或，
接收所述终端的注册请求消息； 则将终端从虚拟基站向目标基站切换的切 换方式信息添加到承载消息具体为： 将终端从虚拟基站向目标基站切换的切换 方式信息添加到注册响应消息中。
8、 如权利要求 6所述的方法， 其特征在于， 所述终端从虚拟基站向目标基 站切换的切换方式信息 , 添加到承载消息中之前还包括：
接收所述终端发送的查询请求消息， 所述查询请求消息中包括所述终端的 位置信息和 /或目标基站的标识信息；
根据所述查询请求消息中包含的终端的位置信息和 /或目标基站的标识信息 查找相应的虚拟基站；
则将终端从虚拟基站向目标基站切换的切换方式信息添加到承载消息具体 为： 将所述终端从查找到的虚拟基站向目标基站切换的切换方式信息， 添加到 7^载消息即查询响应消息中。
9、 一种终端， 其特征在于， 包括：
方式信息获得单元， 用于获得虚拟基站支持的终端从虚拟基站向目标基站 切换的切换方式信息， 所述切换方式信息包括指示主动切换的信息和 /或指示空 闲模式切换的信息；
切换单元， 用于根据所述方式信息获得单元获得的切换方式信息， 向所述 虚拟基站发送相应的消息， 以便所述终端以相应的切换方式从虚拟基站切换到 目标基站。
10、 如权利要求 9所述的终端， 其特征在于， 所述方式信息获得单元包括： 能力发送单元， 用于发送能力请求消息给所述虚拟基站；
能力接收单元， 用于接收所述虚拟基站根据所述能力发送单元发送的能力 请求消息返回的能力响应消息， 所述能力响应消息中包括所述终端从所述虚拟 基站向目标基站切换的切换方式信息。
11、 如权利要求 9所述的终端， 其特征在于， 所述方式信息获得单元包括： 注册发送单元， 用于发送注册请求消息给所述虚拟基站；
注册接收单元， 用于接收所述虚拟基站根据所述注册发送单元发送的注册 请求消息返回的注册响应消息， 所述注册响应消息中包括所述终端从所述虚拟 基站向目标基站切换的切换方式信息。
12、 如权利要求 9所述的终端， 其特征在于， 所述方式信息获得单元包括： 查询发送单元， 用于发送查询请求消息给信息服务器， 所述查询请求消息 中包括所述终端的位置信息和 /或目标基站的标识信息， 以使所述信息服务器根 据所述位置信息查找所述终端可用的基站以及可与该基站交互的所述虚拟基 站； 或使所述信息服务器根据所述目标基站的标识信息查找可与所述目标基站 交互的所述虚拟基站；
查询接收单元， 用于接收所述信息服务器根据所述查询发送单元发送的查 询请求消息返回的查询响应消息， 所述查询响应消息中包括所述终端从所述虚 拟基站向目标基站切换的切换方式信息。
13、 一种虚拟基站， 其特征在于， 包括：
第一添加单元， 用于将所述虚拟基站支持的终端从虚拟基站向目标基站切 换的切换方式的信息， 添加到承载消息中；
第一发送切换单元， 用于将所述第一添加单元添加后的承载消息发送给所 述终端， 以便所述终端根据所述虚拟基站支持的切换方式信息， 从所述虚拟基 站切换到目标基站。
14、 如权利要求 13所述的虚拟基站， 其特征在于， 还包括：
第一接收处理单元， 用于接收能力请求消息或接收所述终端的注册请求信 息；
所述第一添加单元， 具体用于在所述第一接收处理单元接收所述能力请求 信息的情况下， 将终端从所述虚拟基站向目标基站切换的切换方式信息添加到 能力响应消息中； 或在所述第一接收处理单元接收所述注册请求信息的情况下， 将终端从虚拟基站向目标基站切换的切换方式信息添加到注册响应消息中。
15、 一种信息服务器， 其特征在于， 包括：
第二接收处理单元， 用于接收终端发送的查询请求消息， 所述查询请求消 息中包括所述终端的位置信息和 /或目标基站的标识信息； 根据所述查询请求消 息中包含的终端的位置信息和 /或目标基站的标识信息查找相应的虚拟基站； 第二添加单元， 用于将所述第二接收处理单元查找到的虚拟基站支持的所 述终端从所述虚拟基站向目标基站切换的切换方式的信息， 添加到查询响应消 息中；
第二发送切换单元， 用于将所述第二添加单元添加后的查询响应消息发送 给所述终端， 以便所述终端根据所述虚拟基站支持的切换方式信息， 从虚拟基 站切换到目标基站。
16、 一种网络切换系统， 其特征在于， 包括： 终端和虚拟基站；
所述虚拟基站， 用于将所述虚拟基站支持的终端从虚拟基站向目标基站切 换的切换方式信息， 添加到承载消息中； 将所述承载消息发送给所述终端； 所述终端， 用于接收所述虚拟基站发送的承载消息， 获得所述虚拟基站支持的 终端从虚拟基站向目标基站切换的切换方式信息， 所述切换方式信息包括指示 主动切换的信息和 /或指示空闲模式切换的信息； 根据所述切换方式信息， 向所 述虚拟基站发送相应的消息， 以便所述终端从虚拟基站切换到目标基站。
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2009
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2010
- 2010-09-09 KR KR1020127009540A patent/KR101404562B1/ko active IP Right Grant
- 2010-09-09 WO PCT/CN2010/076773 patent/WO2011035688A1/zh active Application Filing
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2012
- 2012-03-22 US US13/427,164 patent/US8867488B2/en active Active
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| CN101083610A (zh) * | 2006-05-30 | 2007-12-05 | 西门子（中国）有限公司 | 提高移动节点在无线局域网中切换速度的方法及移动节点 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2823669A1 (en) * | 2012-04-13 | 2015-01-14 | Huawei Technologies Co., Ltd. | System and method for andsf enhancement with anqp server capability |
| EP2823669A4 (en) * | 2012-04-13 | 2015-04-08 | Huawei Tech Co Ltd | SYSTEM AND METHOD FOR ENHANCING ANDSF WITH ANQP SERVER CAPACITY |
| US9247489B2 (en) | 2012-04-13 | 2016-01-26 | Futurewei Technologies, Inc. | System and method for ANDSF enhancement with ANQP server capability |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101404562B1 (ko) | 2014-06-09 |
| CN102026320B (zh) | 2013-10-09 |
| CN102026320A (zh) | 2011-04-20 |
| US8867488B2 (en) | 2014-10-21 |
| KR20120066040A (ko) | 2012-06-21 |
| US20120182970A1 (en) | 2012-07-19 |
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