[go: up one dir, main page]

WO2011006440A1 - 一种切换方法和装置 - Google Patents

一种切换方法和装置 Download PDF

Info

Publication number
WO2011006440A1
WO2011006440A1 PCT/CN2010/075177 CN2010075177W WO2011006440A1 WO 2011006440 A1 WO2011006440 A1 WO 2011006440A1 CN 2010075177 W CN2010075177 W CN 2010075177W WO 2011006440 A1 WO2011006440 A1 WO 2011006440A1
Authority
WO
WIPO (PCT)
Prior art keywords
network
message
hrpd
handover
terminal
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2010/075177
Other languages
English (en)
French (fr)
Inventor
帅扬来
吴晓波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
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.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to JP2012519876A priority Critical patent/JP5230843B2/ja
Priority to KR1020127003828A priority patent/KR101320984B1/ko
Publication of WO2011006440A1 publication Critical patent/WO2011006440A1/zh
Priority to US13/350,406 priority patent/US20120115489A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • H04W36/00224—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0079—Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
    • H04W36/1443—Reselecting a network or an air interface over a different radio air interface technology between licensed networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • 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

Definitions

  • the present invention relates to the field of communications, and in particular, to a handover method and apparatus. Background technique
  • LTE Long Term Evolved
  • SAE System Architecture Evolved
  • PS packet system
  • IP Internet Protocol
  • VoIP IP over voice for Voice Over IP
  • CS TDM Circuit Division Multiplexing Time Division Multiplexing
  • GSM Global System for Mobile Communication
  • CDMA2000 lx also known as lx network
  • IMS IP Multimedia Subsystem IP Multimedia Subsystem
  • a terminal with such CS fallback (CSFB, CS fallback) capability can be pre-registered in the lx circuit domain when connecting to E-UTRAN (Evolve Universal Terrestrial Radio Access Network).
  • the CS pre-uses the lx system to establish a voice call.
  • the SAG/LTE network releases the GBR (Guest Guaranteed Bit Rate Guaranteed Bit Rate) bearer for the UE (User Equipment User Equipment).
  • the non-GBR (non-guaranteed bit rate) bearer is suspended.
  • the UE cannot continue to use the PS data service or can continue to use the PS service, but the handover process takes a long time, resulting in a poor user experience.
  • the embodiments of the present invention provide a handover method, apparatus, and system, which can solve the problem that the UE continues to use the PS data service during the occurrence of the lxRTT CSFB or the SRVCC, and provides a solution that makes the handover time shorter.
  • the embodiment of the present invention provides a handover method, which receives indication information from an MME (Mobility Management Entity Mobile Management Entity), where the indication information is used to indicate whether the network side and the terminal support enhanced CSFB (circuit switched Fallback circuit) to the lx network.
  • MME Mobility Management Entity Mobile Management Entity
  • CSFB circuit switched Fallback circuit
  • An embodiment of the present invention provides another handover method, which obtains SVDO capability information of a terminal and SRVCC capability information; determining an SRVCC process to the 1 X network and switching to the HRPD network according to the network condition; sending a second message to the terminal, where the second message is used to trigger the terminal to perform handover to the lx network Perform a handover operation to the HRPD network.
  • the embodiment of the present invention provides a switching device, where the device includes a receiving module, a determining module, and a sending module, where the receiving module is configured to receive indication information from the MME, where the indication information is used to indicate whether the network side and the terminal support An enhanced CSFB of the lx network; the determining module, configured to: when the network side and the terminal support the enhanced CSFB to the lx network, determine to perform the enhanced CSFB to the lx network and determine to perform a handover operation to the HRPD network; a module, configured to send, to the terminal, a first message, when the determining module determines to perform an enhanced CSFB to the lx network, and determine to perform a handover operation to the HRPD network, where the first message is used to trigger the terminal to perform The enhanced CSFB of the lx network and the handover operation to the HRPD network; the determining module is further configured to initiate an ordinary CSFB or an end process when the network side and/or the terminal does not support the enhanced CS
  • the embodiment of the present invention provides another switching device, where the device includes an obtaining module, a determining module, and a sending module, where the obtaining module is configured to obtain SVDO capability information and SRVCC capability information of the terminal, and the determining module is configured to use according to the network.
  • the situation determines the SRVCC process to the lx network and the handover to the HRPD network; the sending module is configured to send a second message to the terminal, where the second message is used to trigger the terminal to perform the handover to the lx network. Perform a handover operation to the HRPD network.
  • the embodiments of the present invention can implement the UE to continue to use the PS data service in the process of generating IxRTT CSFB or performing SRVCC, and provide a short switching time, so that the customer has a good customer experience.
  • FIG. 1 is a flowchart of a handover method according to an embodiment of the present invention
  • FIG. 2 is a signaling diagram of a handover method according to Embodiment 2 of the present invention.
  • Embodiment 3 is a signaling diagram of another handover method according to Embodiment 3 of the present invention.
  • Embodiment 4 is a signaling diagram of another handover method according to Embodiment 4 of the present invention.
  • FIG. 5 is a signaling diagram of another handover method according to Embodiment 5 of the present invention.
  • FIG. 6 is a schematic structural diagram of a switching apparatus according to Embodiment 6 of the present invention.
  • FIG. 7 is a schematic structural diagram of another switching apparatus according to Embodiment 7 of the present invention. Detailed ways
  • the embodiment of the present invention is mainly based on CSFB (CS Fallback, CS domain voice fallback) calling process. It should be noted that those skilled in the art should understand that the processing process of the CSFB called process is similar, and will not be described here.
  • CSFB CS Fallback, CS domain voice fallback
  • the target IxRTT base station cannot allocate sufficient resources during the handover preparation process for handover to the IxRTT network, the IxRTT handover preparation fails; if in the HRPD (High Rate Packet Data Network) During the handover preparation process of the network handover, the target HRPD base station cannot allocate sufficient resources, and the HRPD handover preparation fails; for the above abnormal situation, it can be coordinated by the EUTRAN, and the DL information Transfer message or the Mobility From EUTRAN (from the EUTRAN) can be extended. Switch command) The message carries the following information to the terminal:
  • the extension carries the lxRTT failure information and the HRPD handover information, for example, the cell configuration information.
  • the extension carries lxRTT handover information, such as cell configuration information and HRPD failure information.
  • the extension carries lxRTT failure information and HRPD failure information. If the EUTRAN does not perform the coordination of the handover preparation message, the information about the handover failure is sent to the terminal through the DL information Transfer message. In this way, there are also three scenarios:
  • the lxRTT handover preparation failure information is sent to the terminal through the DL information Transfer message, and the HRPD handover preparation success message is sent to the terminal through the Mobility From EUTRAN message.
  • the lxRTT handover preparation success message is sent to the terminal through the Mobility From EUTRAN message, and the HRPD handover preparation failure information is sent to the terminal through the DL information Transfer message.
  • the lxRTT handover preparation failure information and the HRPD handover preparation information failure are respectively sent to the terminal through different DL information Transfer messages.
  • the EUTRAN receives the terminal capability support to strengthen the CSFB capability, and the EUTRAN itself also configures the network support to strengthen the CSFB, and in fact the MME (Mobility Management Entity mobility management entity) does not support the enhanced CSFB, the MME needs to The message returned to the EUTRAN carries the indication information, such as: CDMA2000 HO Status, notifying EUTRAN that the enhanced CSFB is not supported.
  • EUTRAN can control to initiate a normal CSFB, or directly reject this CSFB process.
  • the specific process of the first embodiment of the present invention is described below with reference to FIG. Step 101: Receive indication information from the MME, where the indication information is used to indicate whether the network side and the terminal support the enhanced CSFB to the lx network;
  • Step 102 indicates that if the network side and the terminal support the enhanced CSFB to the lx network, it is determined to perform the enhanced CSFB to the lx network and determine the handover operation to the HRPD network;
  • Step 103 Send a first message to the terminal, where the first message is used to trigger the terminal to perform enhanced CSFB to the lx network and perform a handover operation to the HRPD network;
  • Step 104 indicates that if the network side and/or the terminal do not support the enhanced CSFB to the lx network, a normal CSFB or end process is initiated.
  • This embodiment enables the UE to continue to use the PS data service during the occurrence of the lxRTT CSFB, and provides a shorter switching time, so that the customer has a good customer experience.
  • Step 101a indicates that the SVDO capability information and the SRVCC capability information of the terminal are obtained.
  • Step 102a indicates that the SRVCC process to the lx network and the handover to the HRPD network are determined according to the network condition.
  • Step 103a Send a second message to the terminal, where the second message is used to trigger the terminal to perform handover to the lx network and perform handover operation to the HRPD network.
  • This embodiment can implement the UE to continue to use the PS data service in the process of SRVCC, and provides a short switching time, so that the customer has a good customer experience.
  • FIG. 2 illustrates an enhanced CSFB and PS optimized handover joint control method for network control.
  • Step 201 indicates that the UE is attached to the E-UTRAN and registered at the lxRTT CS through the S102 tunnel, and the UE is also pre-registered in the HRPD network.
  • the UE can support the SVDO (the simultaneous lx and the HRPD operation, the UE can The ability to send and receive IxRTT data and eHRPD data at the same time is reported to the network side.
  • the SVDO capability of the UE can be reported as the network capability of the UE, or can be reported as the wireless capability of the UE.
  • the enhanced CSFB capability support indication is sent to the network side, and the terminal is instructed to support the enhanced CSFB.
  • the MME After receiving the indication, if the MME determines that the MME also supports the enhanced CSFB, the MME passes the MME.
  • the SI message such as the initial Context setup request message, sends an enhanced CSFB Operation Possible indication message to the EUTRAN, according to which the EUTRAN can determine that both the network side and the terminal support the enhancement.
  • CSFB The enhanced CSFB capability support indication of the terminal can be used as the terminal network capability, or can be reported as the wireless capability of the terminal.
  • Step 202 The UE determines to initiate an lx calling process, where the lx calling process is a normal CSFB calling process;
  • Step 203 The terminal triggers a Service Request process, in which a CSFB indicator is carried to the MME, and the MME sends information including a CSFB indicator to the EUTRAN.
  • the service request (monthly service request) information sent by the terminal carries the enhanced CSFB indicator information to the MME, if the MME According to the received enhanced CSFB indicator information, it is determined that the enhanced CSFB (Enhanced Voice Rewind) is also supported, and the enhanced CSFB indicator indication information is forwarded or sent to the EUTRAN, where the indication information is used to indicate that the network side and the terminal support the lx network.
  • Strengthen CSFB This step can be implemented by extending the existing CSFB indicator cell to support the normal CSFB indication and the enhanced CSFB indicator.
  • step 204 indicates that the EUTRAN obtains a measurement report including HRPD and IxRTT measurement information from the terminal;
  • Steps 205a-207a indicate that the EUTRAN triggers the terminal to perform handover preparation to the IxRTT.
  • the EUTRAN transmits, to the terminal, handover preparation request information from the EUTRAN, the handover request preparation information includes information of a target network, and the terminal transmits uplink handover preparation transmission information to the EUTRAN.
  • the MME needs to indicate that the MME needs to perform the enhanced CSFB in the Sl-AP message sent by the EUTRAN to the MME; this function may also be performed by the MME according to the MME.
  • the parameters in the existing S1-AP message are determined, and it is determined that the enhanced CSFB needs to be performed. For example, if the SRVCC information parameter or the RAND parameter or the CDMA2000 HO indicator parameter is included in the S1-AP message, and the MME determines that the current CSFB is performed, Make sure you need to perform enhanced CSFB.
  • the MME When the enhanced CSFB capability support indication of the MME is used as the wireless capability of the terminal, if the MME and the EUTRAN configuration are inconsistent and the enhanced CSFB cannot be performed, the MME notifies The EUTRAN performs a normal CSFB.
  • Step 205b - Step 207b indicates that the EUTRAN triggers the terminal to perform a handover preparation process to the HRPD.
  • the EUTRAN transmits, to the terminal, handover preparation request information from the EUTRAN, the handover request including information of the target network, and the terminal transmits uplink handover preparation transmission information to the EUTRAN.
  • Step 208 indicates that the EUTRAN determines that the enhanced CSFB needs to be performed according to the supported SVDO capability of the UE and the received enhanced CSFB Operation Possible information.
  • the EUTRAN can perform the optimized switching of the PS domain according to the pre-configured policy. If the network cannot perform the optimized switching of the PS domain or the optimized handover fails, the non-optimized handover of the PS domain is performed, and the non-optimized handover of the PS domain is specifically performed.
  • the optimized switching of the PS domain may also be determined according to the PS optimized handover information and/or the measurement information.
  • the EUTRAN coordinates the Handoff Direction message in the handover preparation process of the handover to the lxRTT network and the HRPD message with HO access information in the handover preparation process of the handover to the HRPD network, both of which are It is embedded in the Sl-AP message sent by the MME to the eNB.
  • the terminal sends the received IxRTT handoff Direction as the IxRTT handover command to the IxRTT access;
  • the received HRPD message with the HO access information is used as the handover command to the HRPD handover, and initiates the access to the HRPD;
  • Step 210 indicates that the terminal initiates a call setup process of the lx MO.
  • Step 211 indicates that the terminal initiates an optimized handover procedure to the HRPD.
  • EUTRAN may also perform coordinated synchronization of IxRTT handoff Direction and HRPD message with HO access info, but after receiving any message, it is sent to the terminal through the corresponding Mobility From EUTRAN message, including handoff Direction.
  • the EUTRAN determines that the enhanced CSFB and the PS optimized handover are required, it is guaranteed that the radio resource is released after the IxRTT handoff Direction and the HRPD message with the HO access info information are sent; and the terminal waits until the IxRTT handoff Direction and the HRPD message with the HO access are received.
  • the air interface is switched, that is, the air interface from the LTE air interface to the lx network and the HRPD air interface.
  • Step 301 indicates that the UE is attached at the E-UTRAN and registered at the IxRTT CS through the S102 tunnel, and the UE is also pre-registered in the HRPD network.
  • the UE reports the capability of the UE to support the SVDO to the network side.
  • the SVDO capability of the UE can be reported as the network capability of the UE, or can be reported as the wireless capability of the UE.
  • the enhanced CSFB capability support indication is sent to the network side.
  • the MME determines that the MME also supports the enhanced CSFB
  • the MME passes the S1 message, for example: initial Context setup
  • the request message sends an enhanced CSFB Operation Possible indication message to the E-UTRAN.
  • the E-UTRAN can determine that both the network and the terminal support the enhanced CSFB.
  • the enhanced CSFB capability support indication of the terminal can be used as the terminal network capability. It can also be reported as the wireless capability of the terminal.
  • Step 302 The UE determines to initiate an lx calling process, where the lx calling process is a normal CSFB calling process;
  • Step 303 The terminal triggers a Service Request procedure.
  • the CSFB indicator is carried to the MME, and the MME sends information including the CSFB indicator to the EUTRAN.
  • the service request information sent by the terminal carries the enhanced CSFB indicator information to the MME, if the MME receives the enhanced according to the received The CSFB indicator information, and the MME determines that the MME also supports the enhanced CSFB, and then forwards or sends the enhanced CSFB indicator information to the EUTRAN, where the indication information is used to indicate that the network side and the terminal support the enhanced CSFB to the lx network.
  • This step can be implemented by the widely displayed CSFB indicator cell, which can support the normal CSFB and the enhanced CSFB indicator.
  • Step 304 indicates that the EUTRAN obtains a measurement report including the HRPD and lxRTT measurement information from the terminal, the measurement. The report is the same as the measurement report in the prior art;
  • Step 305-step 307 indicates that the EUTRAN triggers the terminal to perform a handover preparation process to the lxRTT.
  • the EUTRAN transmits, to the terminal, handover preparation request information from the EUTRAN, the handover request includes information of a target network, and the terminal transmits uplink handover preparation transmission information to the EUTRAN. If the power is reported, the MME needs to be instructed in the S 1 -AP message sent by the EUTRAN to the MME.
  • the enhanced CSFB is performed; the function may also be determined by the MME according to the parameters in the existing S1-AP message, and it is determined that the enhanced CSFB needs to be performed, for example, if the SRVCC information parameter or the RAND parameter is included in the S1-AP message, If there is no SRVCC indication on the MME, it is determined that the enhanced CSFB needs to be performed.
  • the enhanced CSFB capability support indication reported by the terminal to the MME is used as the radio capability of the terminal, if the MME and the EUTRAN configuration are inconsistent and the enhanced CSFB cannot be performed, the MME notifies The EUTRAN performs a normal CSFB.
  • Step 308 indicates that the EUTRAN determines that the enhanced CSFB needs to be performed according to the SVDO capability of the UE and the received enhanced CSFB Operation Possible information.
  • the non-optimized handover of the PS domain may also be determined according to at least one of PS non-optimized handover support information, measurement information, and pre-configured policies.
  • the EUTRAN coordinates the Handoff Direction message in the handover preparation process of the handover to the IxRTT network and the HRPD message carrying the handover access information during the handover preparation process of the handover to the HRPD network.
  • the Handoff Direction message during the handover preparation process of the handover to the lx RTT network is embedded in the S1-AP message sent by the MME to the eNB.
  • the access configuration information of the IxRTT handover is carried in the Handoff Direction message; and the EUTRAN constructs HRPD non-optimized Redirection information, and the information may include at least one of HRPD Carrier information, HRPD cell information, and HRPD paging channel information.
  • the EUTRAN ten-tune the HRPD non-optimized Redirection information and the Handoff Direction message.
  • Step 309 The EUTRAN constructs a Mobility From EUTRAN message, and sends the information to the terminal, and carries the IxRTT Handoff Direction information and the HRPD non-optimized Redirection information in the message.
  • the terminal sends the IxRTT handoff Direction information as the IxRTT handover command to initiate the access to the IxRTT.
  • the terminal obtains the information required for the non-optimized handover to the HRPD from the HRPD non-optimized Redirection message, and triggers the non-optimized handover to the HRPD. .
  • Step 310 indicates that the terminal initiates a call setup procedure to the IxRTT.
  • Step 311 indicates that the terminal initiates a non-optimized handover procedure from the EUTRAN network to the HRPD network. It should be noted that step 310 and step 311 have no timing relationship, and step 310 may be performed first, or step 311 may be performed first, or step 310 and step 311 may be performed simultaneously. In this process, the EUTRAN may also not coordinate the lxRTT handoff Direction and the HRPD non-optimized Redirection message, but separately send the RRC Connection Release message and the Mobility From EUTRAN message to the terminal.
  • the EUTRAN determines that the enhanced CSFB and the PS non-optimized handover are required, the EUTRAN releases the corresponding radio resource after transmitting the lxRTT handoff Direction information and the HRPD Redirection message information; and the terminal is also receiving the lxRTT handoff Direction information and the HRPD Redirection message.
  • the air interface is switched from the LTE air interface to the air interface of the lx network and the HRPD air interface.
  • Embodiment 4 of the present invention will be described below with reference to FIG. 4, which illustrates a SRVCC and PS optimized handover joint control method for network control. As shown in Figure 4,
  • the terminal sends the SVDO capability information of the terminal and the SRVCC capability information of the terminal to the network side.
  • the SVDO capability of the terminal may be the wireless capability of the terminal, or may be the network capability of the terminal; the capability of the terminal to support the SRVCC is the network capability of the terminal.
  • step 402 the EUTRAN acquires a measurement report including HRPD and lxRTT measurement information from the terminal;
  • the EUTRAN triggers the terminal to perform a handover preparation procedure to lxRTT.
  • the EUTRAN sends a handover preparation request information from the EUTRAN to the terminal, where the handover request preparation information includes information of a target network, and the terminal sends an uplink handover preparation to the EUTRAN. Lose information.
  • the EUTRAN triggers the terminal to perform a handover preparation procedure to the HRPD.
  • the EUTRAN transmits, to the terminal, handover preparation request information from the EUTRAN, the handover request including information of the target network, and the terminal transmits uplink handover preparation transmission information to the EUTRAN.
  • the EUTRAN determines, according to the SVDO capability of the UE and the SRVCC support information and measurement report information, that the SRVCC needs to be performed to the network; according to the measurement report information, and the pre-configured policy, the PS optimized handover information, and the measurement information. At least one of the determinations is made to an optimized handover to the HRPD network.
  • the coordination steps of the other EUTRANs are the same as the corresponding coordination steps in Embodiment 2.
  • steps 407 to 409 the corresponding steps in the embodiment 2 are the same.
  • the EUTRAN may also not coordinate the lxRTT handoff Direction and the HRPD message with the HO access info, but after receiving any message, send it to the terminal through the corresponding Mobility From EUTRAN message, if the EUTRAN determines that the SRVCC needs to be performed.
  • PS-optimized handover it is guaranteed that the radio resource is released after the 1 xRTT handoff Direction information and the HRPD message with HO access info information are sent; and the terminal waits until the lxRTT handoff Direction information and the HRPD message with HO access info information are received.
  • the air interface is switched, that is, the LTE air interface is switched to the lx network air interface and the HRPD network air interface.
  • Embodiment 5 of the present invention will be described below with reference to FIG. 5. This embodiment illustrates a SRVCC and PS non-optimized handover joint control method for network control.
  • the terminal sends the SVDO capability information of the terminal and the SRVCC capability of the terminal to the network side.
  • the SVDO capability of the terminal may be the wireless capability of the terminal or the network capability of the terminal.
  • the capability of the terminal to support the SRVCC is the network capability of the terminal.
  • step 502 the EUTRAN acquires a measurement report including HRPD and lxRTT measurement information from the terminal;
  • Step 503-Step 505 indicates that the EUTRAN triggers the terminal to perform the handover to the lxRTT. Cheng.
  • the EUTRAN transmits, to the terminal, handover preparation request information from the EUTRAN, the handover request includes information of a target network, and the terminal transmits uplink handover preparation transmission information to the EUTRAN.
  • the EUTRAN determines that the SRVCC needs to be performed according to the SVDO capability information of the UE and the SRVCC support information and the measurement report; and according to the measurement report information, and at least one of a pre-configured policy, an optimized handover failure, and a network does not support the optimized handover. Determine the non-optimized switch to the HRPD network.
  • the coordination steps of the other EUTRANs are the same as the corresponding coordination steps in Embodiment 3.
  • Step 507 - Step 509 indicates the same as the corresponding steps in Embodiment 3.
  • the EUTRAN may also not coordinate the lxRTT handoff Direction and the HRPD Redirection message, but send the RRC Connection Release message and the Mobility From EUTRAN message to the terminal respectively. If the EUTRAN determines that the SRVCC and the PS non-optimized handover are required, After the EUTRAN sends the lxRTT handoff Direction information and the HRPD Redirection message information, the radio resource is released; and the terminal also performs the air interface switch after receiving the lxRTT handoff Direction information and the HRPD Redirection message information, that is, switching from the LTE air interface to the LTE air interface. Lx and HRPD air interface.
  • a switching device is specifically described below with reference to FIG.
  • the embodiment of the present invention provides a switching device, where the device includes a receiving module 601, a determining module 602, and a sending module 603.
  • the receiving module 601 receives the indication information from the MME, where the indication information is used to indicate whether the network side and the terminal are Supporting the enhanced CSFB to the lx network;
  • the determining module 602 is configured to, when the network side and the terminal support the enhanced CSFB to the lx network, determine to perform the enhanced CSFB to the lx network and determine to perform the handover operation to the HRPD network;
  • the sending module 603 sends a first message to the terminal, where the first message is used to trigger the terminal to perform The enhanced CSFB to the lx network and the switching operation to the HRPD network;
  • the determining module 602 is further configured to:
  • the receiving module 601 is further configured to receive a measurement report that includes HRPD and IxRTT measurement information from the terminal, and send the measurement report information to the determining module 602.
  • the determining module 602 includes a first determining unit and a second determining unit, where the first determining unit is configured to determine, according to a network condition, an optimized switching to the HRPD network, where the second determining unit is configured to determine according to a network condition. Perform a non-optimized switch to the HRPD network.
  • the device further includes a coordination module 604 and a configuration module 605, where the receiving module 601 is further configured to receive a Handoff Direction message during the handover to the lx network preparation process, where the coordination module 604 is configured to be used by the first determining unit.
  • the constructing module 605 is configured to construct a Mobility From EUTRAN message, where the Mobility From EUTRAN message includes the Handoff Direction message and the HRPD message with HO access information message, and the sending module 603 is further configured to send the Mobility From EUTRAN message Or the constructing module 605, configured to construct HRPD non-optimized redirection information, where the HRPD non-optimized Redirection information includes at least one of HRPD Carrier information, HRPD cell information, and HRPD paging channel information; Module 604, also for when the second The determining unit determines to perform the non-optimized handover to the HRPD network, and coordinates the Handoff Direction message obtained by the receiving module 601 and the HRPD non-optimized Redirection information constructed by the constructing module 605 during the
  • the sending module 603 is further configured to: when the first determining unit determines to perform an optimized handover to the HRPD network, send a Mobility From EUTRAN message including a handoff Direction message and a Mobility From EUTRAN message including an HRPD message with a HO access info message.
  • the Mobility From EUTRAN message including the handoff Direction message is used to trigger the terminal to perform handover to the lx network
  • the Mobility From EUTRAN message including the HRPD message with HO access info message is used to trigger the terminal to proceed to Switching of the HRPD network; or
  • the sending module 603 is further configured to: when the second determining unit determines to perform a non-optimized handover to the HRPD network, send an RRC Connection Release message and a Mobility From EUTRAN message to the terminal, where the RRC Connection Release message is used to trigger the The terminal performs handover to the lx network, and the Mobility From EUTRAN message is used to trigger the terminal to perform non-optimized handover to the HRPD network.
  • the device includes an obtaining module 701, a determining module 702, and a sending module 703, where the obtaining module 701 is configured to obtain SVDO capability information and SRVCC capability information of the terminal;
  • the module 702 is configured to determine, according to a network condition, an SRVCC process to the lx network and a handover to the HRPD network, where the sending module 703 is configured to send a second message to the terminal, where the second message is used to trigger the The terminal performs handover to the lx network and performs handover operation to the HRPD network.
  • the obtaining module 701 is further configured to receive a measurement report that includes HRPD and lxRTT measurement information from the terminal, and send the measurement report information to the determining module 702.
  • the determining module 702 includes a third determining unit and a fourth determining unit, where the third determining unit is configured to determine, according to a network condition, an optimized switching to the HRPD network; Element, used to determine non-optimized handover to the HRPD network based on network conditions.
  • the device further includes a coordination module 704 and a configuration module 705, where the obtaining module 701 is further configured to receive a Handoff Direction message during the handover to the network preparation process; the coordination module 704 is configured to: when the third determination The unit determines to perform the optimized handover to the HRPD network, coordinates the Handoff Direction message received by the obtaining module 701 and the HRPD message with HO access information message received during the handover to the HRPD network preparation process during the handover to the lx network preparation process;
  • the constructing module 705 is configured to construct a Mobility From EUTRAN message, where the Mobility From EUTRAN message includes the Handoff Direction message and an HRPD message with a HO access information message; the sending module 703 is further configured to use the Mobility From EUTRAN message
  • the HRPD non-optimized Redirection information includes at least one of HRPD Carrier information, HRPD cell information, and HRPD paging channel information, where the HRPD non-optimized Redirection information is configured to be sent to the terminal; Coordination
  • the sending module 703 is further configured to: when the third determining unit determines to perform an optimized handover to the HRPD network, send a Mobility From EUTRAN message including a handoff Direction message, and a Mobility From EUTRAN including an HRPD message with a HO access info message. Sending a message to the terminal, the Mobility From EUTRAN message including the handoff Direction message is used to trigger the terminal to perform handover to the lx network, and the Mobility From EUTRAN message including the HRPD message with HO access info message is used to trigger the terminal to perform Switch to the HRPD network; or
  • the sending module 703 is further configured to: when the fourth determining unit determines to perform a non-optimized handover to the HRPD network, send an RRC Connection Release message and a Mobility From EUTRAN message to the terminal, where the RRC Connection Release message is used to trigger the The terminal performs handover to the lx network, and the Mobility From EUTRAN message is used to trigger the terminal to perform non-optimized handover to the HRPD network.
  • receiving in the above embodiments of the invention may be understood as actively acquiring information from other modules or receiving information transmitted by other modules.
  • the above modules can be combined into one module, or they can be further split into multiple submodules.
  • the program is instructed to complete the associated hardware, and the program can be stored in a computer readable storage medium.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Description

一种切换方法和装置 本申请要求于 2009年 7月 15 日提交的， 申请号为 200910108783. 4 , 发 明名称为 "一种切换方法和装置" 的中国申请的优先权， 其全部内容通过引 用结合在本申请中。 技术领域
本发明涉及通信领域， 具体涉及一种切换方法和装置。 背景技术
目前， 长期演进（ Long Term Evolved, 以下简称： LTE ) 网络 /系统架构 演进（ System Architecture Evolved , 以下简称： SAE ) 网络成为一个重要的研 究课题。 其中， LTE 旨在提供一种能降低时延、 提高用户数据速率、 改进系 统容量和低成本覆盖的网络， 其使用分组（Packet System PS )域业务， 承载 网络为因特网协议（ Internet Protocol , 以下简称： IP )承载。 由现有技术可知 ,在 LTE系统中 ,语音业务数据一般由 IMS(IP Multimedia Subsystem 多媒体子系统)来控制， 所以在 SAE/LTE 中语音业务一般被称作 VoIP ( Voice Over IP用 IP传输语音）语音业务。 而对于传统的语音业务， 一 般都是承载在 CS TDM ( Circuit System电路域 Time Division Multiplexing 时 分复用）上。 LTE在初始阶段的部署是热点覆盖， 而提供电路域语音服务的 网絡，如 GSM ( Global System for Mobile Communication第二代全球移动通信 信系统）、 CDMA2000 lx (筒称 lx网络）在某种程度上可看作一种全覆盖。 在 LTE的早期部署阶段， IMS ( IP Multimedia Subsystem IP多媒体子系统） 可能没有部署， 主要提供高速数据业务。 现在有很多 lx网络的运营商希望逐步将网络过渡到 LTE系统，希望能够 重用 Ix的网络使终端在 LTE网络进行服务的时候能够将 CS域的业务传递到 用户。 具有这种 CS fallback ( CSFB, CS回退）能力的终端在连接 E-UTRAN ( Evolve Universal Terrestrial Radio Access Network演进的全球陆地无线接入 网） 的时候可以在 lx 电路域进行预注册， 以能够在 CS预使用 lx系统接入 建立语音呼叫。 在发生 lxRTT CSFB或进行 SRVCC(Single Radio Voice Call Continuity单 一无线语音呼叫连续性)过程中， 对于 UE(User Equipment用户设备)的 载， SAE/LTE 网络释放 GBR ( Guaranteed Bit Rate保证比特速率）承载， 挂起 Non-GBR (非保证比特速率）承载， 这样导致 UE无法继续使用 PS数据业务 或是能够继续使用 PS业务但是切换过程时间较长， 导致用户体验很差。
发明内容
本发明实施例提供切换方法、 装置以及系统， 能够解决在发生 lxRTT CSFB或进行 SRVCC过程中 UE继续使用 PS数据业务，并且提供了使得切换 时间较短的解决方案。
本发明实施例提供了一种切换方法， 接收来自 MME ( Mobility Management Entity移动管理实体） 的指示信息， 所述指示信息用于指示网络 侧和终端是否支持到 lx网络的加强 CSFB ( Circuit Switched Fallback 电路域 回退）， 若所述网络侧和终端支持到 lx网络的加强 CSFB, 则确定执行到 lx 网络的加强 CSFB以及确定执行到 HRPD网络的切换操作； 向所述终端发送 第一消息， 所述第一消息用于触发所述终端进行到 lx网络的加强 CSFB和进 行到 HRPD网络的切换操作； 若所述网络侧和 /或终端不支持到 lx网络的加 强 CSFB , 则发起普通的 CSFB或结束流程。 本发明实施例提供另一种切换方法， 获得终端的 SVDO 能力信息和 SRVCC能力信息；根据网络情况确定进行到 1 X网络的 SRVCC流程和到 HRPD 网络的切换； 向所述终端发送第二消息， 所述第二消息用于触发所述终端进 行到 lx网络的切换和进行到 HRPD网络的切换操作。 本发明实施例提供一种切换装置， 该装置包括接收模块、 确定模块以及 发送模块， 所述接收模块，用于接收来自 MME的指示信息，所述指示信息用于指示 网络侧和终端是否支持到 lx网络的加强 CSFB; 所述确定模块， 用于当所述网络侧和终端支持到 lx网络的加强 CSFB , 则确定执行到 lx网络的加强 CSFB以及确定执行到 HRPD网络的切换操作； 所述发送模块， 用于当所述确定模块确定执行到 lx网络的加强 CSFB以 及确定执行到 HRPD网络的切换操作时， 向所述终端发送第一消息， 所述第 一消息用于触发所述终端进行到 lx网络的加强 CSFB和进行到 HRPD网络的 切换操作； 所述确定模块， 还用于当所述网络侧和 /或终端不支持到 lx 网络的加强 CSFB , 则发起普通的 CSFB或结束流程。 本发明实施例提供另一种切换装置， 该装置包括获得模块、 确定模块以 及发送模块， 所述获得模块， 用于获得终端的 SVDO能力信息和 SRVCC能力信息； 所述确定模块， 用于根据网络情况确定进行到 lx网络的 SRVCC流程和 到 HRPD网络的切换； 所述发送模块， 用于向所述终端发送第二消息， 所述第二消息用于触发 所述终端进行到 lx网络的切换和进行到 HRPD网络的切换操作。 本发明实施例能够实现在发生 IxRTT CSFB或进行 SRVCC过程中 UE继 续使用 PS数据业务， 并且提供了使得切换时间较短， 使得客户有良好的客户 体验。 附图说明
图 1为本发明实施例提供的一种切换方法的流程图；
图 2为本发明实施例二提供的一种切换方法的信令图；
图 3为本发明实施例三提供的另一种切换方法的信令图；
图 4为本发明实施例四提供的另一种切换方法的信令图；
图 5为本发明实施例五提供的另一种切换方法的信令图；
图 6为本发明实施例六提供的一种切换装置的结构示意图；
图 7为本发明实施例七提供的另一种切换装置的结构示意图。 具体实施方式
下面结合说明书附图来说明本发明实施例的具体实施方式。
本发明实施例主要基于 CSFB ( CS Fallback, CS域语音回落）主叫流程。 需要说明的是， 本领域技术人员应当理解， 对于 CSFB被叫流程， 其处理过 程类似， 这里就不再赘述。
本领域技术人员应当理解， 根据本发明实施所提供的技术方案， 可以有 相近或相似的技术方案应用于 LTE 到 2G/3G 的 CSFB 过程中， 或应用到 SRVCC( Single Radio Voice Call Continuity单一无线语音呼叫连续性）过程中 , 上述技术方案都应在本发明的保护范围中。
在以下实施例中， 如果在向 IxRTT网络进行切换的切换准备过程中， 目 标 IxRTT基站不能分配足够的资源， 则 IxRTT切换准备会失败； 如果在向 HRPD ( High Rate Packet Data Network 高速分组数据网） 网络进行切换的切 换准备过程中， 目标 HRPD基站不能分配足够的资源， 则 HRPD切换准备会 失败； 针对以上异常情况， 可以由 EUTRAN进行协调， 可以通过扩展 DL information Transfer消息或 Mobility From EUTRAN (从 EUTRAN切换命令 ) 消息携带如下信息给终端：
1、如果 lxRTT切换准备失败，而 HRPD切换准备成功，则扩展携带 lxRTT 失败信息和 HRPD切换信息， 如， 小区配置信息。
2、如果 lxRTT切换准备成功，而 HRPD切换准备失败，则扩展携带 lxRTT 切换信息， 如， 小区配置信息和 HRPD失败信息。
3、 如果 lxRTT切换准备和 HRPD切换准备都失败， 则扩展携带 lxRTT 失败信息和 HRPD失败信息。 如果 EUTRAN 不进行切换准备消息的协调， 则对于切换失败的信息， 通过 DL information Transfer消息发送给终端， 通过此方式， 也存在三种场景：
1、如果 lxRTT切换准备失败， 而 HRPD切换准备成功， 则 lxRTT切换准 备失败信息通过 DL information Transfer消息发送给终端， 而 HRPD切换 准备成功的消息通过 Mobility From EUTRAN消息发送给终端。
2、如果 lxRTT切换准备成功， 而 HRPD切换准备失败， 则 lxRTT切换准 备成功消息通过 Mobility From EUTRAN消息发送给终端 , 而 HRPD切换 准备失败信息通过 DL information Transfer消息发送给终端。
3、如果 lxRTT切换准备和 HRPD切换准备都失败，则 lxRTT切换准备失 败信息和 HRPD 切换准备信息失败分别通过不同的 DL information Transfer消息发送给终端。 在下面实施例中， 如果 EUTRAN收到终端能力支持加强 CSFB能力， 并 且 , EUTRAN本身也配置网络支持加强 CSFB , 而实际上 MME ( Mobility Management Entity移动性管理实体）不支持加强 CSFB, 则 MME需要在 返回给 EUTRAN的消息中携带指示信息， 如： CDMA2000 HO Status, 通 知 EUTRAN不支持加强的 CSFB。 EUTRAN收到此信息后， 可以控制发 起普通的 CSFB, 或直接拒绝此 CSFB流程。 下面结合图 1阐述本发明实施例一的具体流程。 步驟 101表示，接收来自 MME的指示信息，所述指示信息用于指示网络 侧和终端是否支持到 lx网络的加强 CSFB;
步驟 102表示， 若所述网络侧和终端支持到 lx网络的加强 CSFB, 则确 定执行到 lx网络的加强 CSFB以及确定执行到 HRPD网络的切换操作；
步驟 103表示， 向所述终端发送第一消息， 所述第一消息用于触发所述 终端进行到 lx网络的加强 CSFB和进行到 HRPD网络的切换操作；
步驟 104表示， 若所述网络侧和 /或终端不支持到 lx网络的加强 CSFB, 则发起普通的 CSFB或结束流程。
本实施例能够实现在发生 lxRTT CSFB过程中，UE继续使用 PS数据业务， 并且提供了使得切换时间较短， 使得客户有良好的客户体验。
同时， 还提供另一种实施例 步驟 101a表示， 获得终端的 SVDO能力信息和 SRVCC能力信息； 步驟 102a表示， 根据网络情况确定进行到 lx网络的 SRVCC流程和到 HRPD网络的切换；
步骤 103a表示， 向所述终端发送第二消息，所述第二消息用于触发所述终 端进行到 lx网络的切换和进行到 HRPD网络的切换操作。
本实施例能够实现在发生 SRVCC过程中， UE继续使用 PS数据业务， 并 且提供了使得切换时间较短， 使得客户有良好的客户体验。
下面结合图 2阐述本发明实施例二， 该实施例阐述了网络控制的一种加 强 CSFB和 PS优化切换联合控制方法。
步驟 201表示， UE在 E-UTRAN附着并且通过 S102隧道在 lxRTT CS进 行注册， UE也在 HRPD网络中预先注册。 UE在 E-UTRAN附着过程中， UE 将该 UE关于支持 SVDO ( simultaneous lx and the HRPD operation, UE能够 同时收发 IxRTT数据和 eHRPD数据 )的能力上报给网络侧。 该 UE的 SVDO 能力可以作为 UE的网络能力上报 , 也可以当作该 UE的无线能力上报。
并且终端上才艮 enhanced CSFB capability support indication (加强 CSFB能 力支持指示）给网络侧， 指示所述终端支持加强 CSFB, MME收到此指示后， 如果确定该 MME也支持加强的 CSFB, 则该 MME通过 SI消息， 如： initial Context setup request (初始上下文建立请求） 消息， 发送 enhanced CSFB Operation Possible (加强的语音回退可操作）指示信息给 EUTRAN, EUTRAN 根据该指示能够判断出网络侧和终端都支持加强的 CSFB; 终端的 enhanced CSFB capability support indication可以作为终端网络能力进行上 ^艮， 也可以作 为终端的无线能力进行上报。
步驟 202表示， UE决定发起 lx主叫流程， 该 lx主叫流程为普通 CSFB 主叫流程；
步骤 203表示， 终端触发 Service Request (服务请求）过程，在该过程中， 携带 CSFB indicator给所述 MME, 进而所述 MME将包括 CSFB indicator的 信息发送给所述 EUTRAN。
在一个实施例中， 如果在步驟 201 中， 终端没有上 enhanced CSFB capability support indication给网络， 终端发送的所述 Service Request (月良务请 求）信息中 , 则携带 enhanced CSFB indicator信息给 MME, 如果 MME根据 收到的 enhanced CSFB indicator信息确定自己也支持 enhanced CSFB (加强的 语音回退）， 则转发或发送 enhanced CSFB indicator指示信息给 EUTRAN, 所 述指示信息用于指示网络侧和终端支持到 lx网络的加强 CSFB。 此步驟可以 通过扩展现有的 CSFB indicator信元实现， 让其能够支持普通的 CSFB指示 和 enhanced CSFB indicator。
可选的 , 步骤 204表示， EUTRAN从终端获取包括 HRPD和 IxRTT测量 信息的测量报告；
步骤 205a-步骤 207a表示， EUTRAN触发终端进行到 IxRTT的切换准备 过程。 该 EUTRAN向终端发送从该 EUTRAN切换准备请求信息， 该切换请 求准备信息包括目标网络的信息， 该终端向该 EUTRAN发送上行切换准备传 输信息。
在此过程中 ,如果终端将其 enhanced CSFB capability support indication作 为无线能力上 ·¾, 则在 EUTRAN发送给 MME的 Sl-AP消息中， 需要指示 MME需要进行 enhanced CSFB; 此功能也可以由该 MME根据现有的 S1-AP 消息中的参数进行判断，确定需要进行的是 enhanced CSFB,如：如果在 S1-AP 消息中包括 SRVCC information参数或 RAND参数或 CDMA2000 HO indicator 参数， MME确定当前进行 CSFB, 则确定需要进行 enhanced CSFB。 当所述 终端上才艮给所述 MME的 enhanced CSFB capability support indication作为所述 终端的无线能力上 时， 若所述 MME与所述 EUTRAN配置不一致， 不能进 行所述加强 CSFB , 则所述 MME通知所述 EUTRAN进行普通的 CSFB。
步骤 205b-步骤 207b表示， EUTRAN触发终端进行到 HRPD的切换准备 过程。 该 EUTRAN向终端发送从该 EUTRAN切换准备请求信息， 该切换请 求包括目标网络的信息， 该终端向该 EUTRAN发送上行切换准备传输信息。
步驟 208表示 , EUTRAN根据 UE的支持 SVDO能力和接收到的 enhanced CSFB Operation Possible信息确定需要执行加强 CSFB。 可选的， EUTRAN可 以根据预先配置的策略进行 PS域的优化切换， 若网络不能进行 PS域的优化 切换或优化切换失败， 则进行 PS域的非优化切换， 到 PS域的非优化切换的 具体步驟可以参见实施例 3的相应步驟。 可选的， 还可以根据 PS优化切换信 息和 /或测量 告信息来确定进行 PS 域的优化切换。 EUTRAN协调切换到 lxRTT网络的切换准备过程中的 Handoff Direction消息和切换到 HRPD网络 的切换准备过程中的携带切换接入信息的 HRPD 消息（HRPD message with HO access information ),所述两个消息都是嵌入在 MME发送给 eNB的 Sl-AP 消息中。 在该 Handoff Direction消息中携带切换到 lxRTT网络的接入配置信 息； 步驟 209表示 , EUTRAN构造 Mobility From EUTRAN消息并发送给终 端 ,在消息中同时携带 IxRTT Handoff Direction信息和 HRPD message with HO access information信息。终端将收到的 IxRTT handoff Direction作为 IxRTT切 换的切换命令，发起到 IxRTT的接入；将收到的 HRPD message with HO access information作为到 HRPD切换的切换命令， 发起到 HRPD的接入；
步骤 210表示， 终端发起 lx MO的呼叫建立过程。
步驟 211表示， 终端发起到 HRPD的优化切换过程。
本领域技术人员应当理解， 步驟 210和步驟 211没有时序关系， 可以先 执行步驟 210, 也可以先执行步驟 211 , 也可以同时执行步驟 210和步驟 211。 在此过程中， EUTRAN也可以不进行 IxRTT handoff Direction和 HRPD message with HO access info的协调同步 , 而是在收到任何一个消息后 , 都通 过相应的 Mobility From EUTRAN消息发送给终端 , 即包括 handoff Direction 消息的 Mobility From EUTRAN消息以及包括 HRPD message with HO access info 消息的 Mobility From EUTRAN 消息。 如果 EUTRAN确定需要进行 enhanced CSFB和 PS优化切换， 则保证在发送了 IxRTT handoff Direction和 HRPD message with HO access info信息后， 才释放无线资源； 而终端也是等 到收到了 IxRTT handoff Direction和 HRPD message with HO access info之后 , 才进行空口的切换， 即从 LTE空口切换到 lx网络的空口和 HRPD空口。 下面结合图 3阐述本发明实施例三， 该实施例阐述了网络控制的一种加 强 CSFB和 PS非优化切换联合控制方法。
步骤 301表示， UE在 E-UTRAN附着并且通过 S102隧道在 IxRTT CS进 行注册， UE也在 HRPD网络中预先注册。 UE在 E-UTRAN附着过程中， UE 将该 UE关于支持 SVDO的能力上报给网络侧。 该 UE的 SVDO能力可以作 为 UE的网络能力上报， 也可以当作该 UE的无线能力上报。 并且终端上才艮 enhanced CSFB capability support indication (加强 CSFB能 力支持指示）给网络侧 , MME收到此指示后 , 如果确定该 MME也支持加强 的 CSFB , 则该 MME通过 S1消息 , 如： initial Context setup request消息 , 发 送 enhanced CSFB Operation Possible指示信息给 E-UTRAN, E-UTRAN根据 该指示能够判断出网络和终端都支持加强的 CSFB; 终端的 enhanced CSFB capability support indication可以作为终端网络能力进行上 4艮 ,也可以作为终端 的无线能力进行上报。
步驟 302表示， UE决定发起 lx主叫流程， 该 lx主叫流程为普通 CSFB 主叫流程；
步驟 303表示， 终端触发 Service Request过程， 在此过程中， 携带 CSFB indicator给 MME, 进而 MME将包括 CSFB indicator 的信息发送给所述 EUTRAN。
在一个实施例中， 如果在步骤 301 中， 终端没有携带 enhanced CSFB capability support indication给网络，则在终端发送的所述 Service Request信息 中，携带 enhanced CSFB indicator信息给 MME,若 MME根据收到的 enhanced CSFB indicator信息， 且该 MME确定该 MME也支持 enhanced CSFB, 则转 发或发送 enhanced CSFB indicator信息给 EUTRAN, 所述指示信息用于指示 网络侧和终端支持到 lx网络的加强 CSFB。此步驟可以通过才广展现有的 CSFB indicator信元实现， 让其能够支持普通的 CSFB 和 enhanced CSFB indicator 可选的 , 步驟 304表示， EUTRAN从终端获取包括 HRPD和 lxRTT测量 信息的测量报告 , 该测量报告与现有技术中测量报告相同；
步驟 305-步驟 307表示， EUTRAN触发终端进行到 lxRTT的切换准备过 程。 该 EUTRAN向终端发送从该 EUTRAN切换准备请求信息， 该切换请求 包括目标网络的信息， 该终端向该 EUTRAN发送上行切换准备传输信息。 力上报 , 则在 EUTRAN发送给 MME的 S 1 -AP消息中， 需要指示 MME需要 进行 enhanced CSFB;此功能也可以由该 MME根据现有的 Sl-AP消息中的参 数进行判断， 确定需要进行的是 enhanced CSFB, 如： 如果在 S1-AP消息中包 括 SRVCC information参数或 RAND参数， 而 MME上没有 SRVCC指示， 则 确定需要进行 enhanced CSFB。当所述终端上报给所述 MME的 enhanced CSFB capability support indication作为所述终端的无线能力上 ^艮时 , 若所述 MME与 所述 EUTRAN配置不一致， 不能进行所述加强 CSFB, 则所述 MME通知所 述 EUTRAN进行普通的 CSFB。
步驟 308表示， EUTRAN根据 UE 的 SVDO能力和接收到的 enhanced CSFB Operation Possible信息确定需要执行加强 CSFB。 可选的， 还可以才艮据 PS非优化切换支持信息、 测量 ^艮告信息和预先配置的策略中的至少一个来确 定进行 PS域的非优化切换。 EUTRAN协调切换到 IxRTT网络的切换准备过 程中的 Handoff Direction消息和切换到 HRPD网络的切换准备过程中的携带 切换接入信息的 HRPD 消息。 该切换到 lx RTT 网络的切换准备过程中的 Handoff Direction消息嵌入在 MME发送给 eNB的 S1-AP消息中。 在 Handoff Direction消息中携带 IxRTT切换的接入配置信息；并且， EUTRAN构造 HRPD non-optimized Redirection信息, 此信息可以包括 HRPD Carrier information、 HRPD cell information和 HRPD paging channel信息中的至少一个。 EUTRAN 十办调所述 HRPD non-optimized Redirection信息和所述 Handoff Direction消息。
步驟 309表示， EUTRAN构造 Mobility From EUTRAN消息， 并将该信 息发送给终端， 在消息中同时携带 IxRTT Handoff Direction信息和 HRPD non-optimized Redirection信息。终端将收到的 IxRTT handoff Direction信息作 为 IxRTT切换的切换命令，发起到 IxRTT的接入；终端从 HRPD non-optimized Redirection消息中获取进行非优化切换到 HRPD需要的信息， 触发到 HRPD 的非优化切换。
步驟 310表示， 终端发起到 IxRTT的呼叫建立过程。
步骤 311表示 , 终端发起从 EUTRAN网络到 HRPD网络的非优化切换过程。 需要指出的是， 步驟 310和步驟 311没有时序关系， 可以先进行步驟 310, 也 可以先进行步骤 311 , 也可以同时进行步骤 310和步骤 311。 在此过程中， EUTRAN 也可以不进行 lxRTT handoff Direction 和 HRPD non-optimized Redirection消息的协调 , 而是分另' J将 RRC Connection Release 消息和 Mobility From EUTRAN消息发送给终端。如果 EUTRAN确定需要进 行 enhanced CSFB和 PS非优化切换， 则该 EUTRAN在发送 lxRTT handoff Direction信息和 HRPD Redirection message信息后，才释放相应的无线资源； 而终端也是在接收到 lxRTT handoff Direction信息和 HRPD Redirection message信息之后， 才进行空口的切换， 即从 LTE空口切换到 lx网络的空口 和 HRPD空口。 利用上述实施例中的方法， 可以通过网络侧对终端和网络都支持 enhanced CSFB capability的能力进行协调 , 并且对 enhanced CSFB和 PS域的 切换的切换命令进行协调， 相对于一般的 CSFB 能够大幅度提高性能， 特别 是切换速度方面。
下面结合图 4 阐述本发明实施例 4, 该实施例阐述了网络控制的一种 SRVCC和 PS优化切换联合控制方法。 如图 4所述，
在步驟 401中 ,终端将该终端的 SVDO能力信息和该终端的 SRVCC能力 信息发送给网络侧。 其中， 终端的 SVDO能力可以是终端的无线能力， 也可 以是终端的网络能力； 终端的支持 SRVCC的能力是终端的网络能力。
在步驟 402中 , EUTRAN从终端获取包括 HRPD和 lxRTT测量信息的测 量报告；
在步驟 403a-步驟 405a中， EUTRAN触发终端进行到 lxRTT的切换准备 过程。 该 EUTRAN向终端发送从该 EUTRAN切换准备请求信息， 该切换请 求准备信息包括目标网络的信息， 该终端向该 EUTRAN发送上行切换准备传 输信息。
在步骤 403b-步骤 405b中 , EUTRAN触发终端进行到 HRPD的切换准 备过程。 该 EUTRAN向终端发送从该 EUTRAN切换准备请求信息， 该切换 请求包括目标网络的信息，该终端向该 EUTRAN发送上行切换准备传输信息。
在步驟 406中，此处 EUTRAN根据 UE的 SVDO能力和 SRVCC支持信 息和测量报告信息确定需要执行到 ΐχ网络的 SRVCC; 根据测量报告信息， 以及预先配置的策略、 PS优化切换信息和测量 告信息中的至少一个确定进 行到 HRPD网络的优化切换。其他的 EUTRAN的协调步驟与实施例 2中的相 应的协调步驟相同。
在步驟 407-步驟 409中， 与实施例 2中的相应步驟相同。
在此过程中 , EUTRAN也可以不进行 lxRTT handoff Direction和 HRPD message with HO access info的协调， 而是在收到任何一个消息后， 通过相应 的 Mobility From EUTRAN消息发送给终端， 如果 EUTRAN确定需要进行 SRVCC和 PS优化切换 ,则保证在发送了 1 xRTT handoff Direction信息和 HRPD message with HO access info信息后， 才释放无线资源； 而终端也是等到收到 了 lxRTT handoff Direction信息和 HRPD message with HO access info信息之 后 ,才进行空口的切换，即从 LTE空口切换到 lx网络空口和 HRPD网络空口。 下面结合图 5 阐述本发明实施例 5 , 该实施例阐述了网络控制的一种 SRVCC和 PS非优化切换联合控制方法。
在步骤 501中，终端将该终端的 SVDO能力信息和该终端的 SRVCC能 力给信息发送给网络侧。 其中， 该终端的 SVDO能力可以是终端的无线能力， 也可以是终端的网络能力； 终端的支持 SRVCC的能力是终端的网络能力。
在步驟 502中 , EUTRAN从终端获取包括 HRPD和 lxRTT测量信息的 测量报告；
步驟 503-步驟 505表示， EUTRAN触发终端进行到 lxRTT的切换准备过 程。 该 EUTRAN向终端发送从该 EUTRAN切换准备请求信息， 该切换请求 包括目标网络的信息， 该终端向该 EUTRAN发送上行切换准备传输信息。
在步驟 506中 , 此处 EUTRAN根据 UE 的 SVDO能力信息和 SRVCC支 持信息和测量报告确定需要执行 SRVCC; 根据测量报告信息， 以及预先配置 的策略、优化切换失败和网络不支持优化切换中的至少一个确定进行到 HRPD 网络的非优化切换。 其他的 EUTRAN的协调步骤与实施例 3中的相应的协调 步驟相同。
步驟 507-步驟 509表示， 与实施例 3中的相应步驟相同。
在此过程中 , EUTRAN也可以不进行 lxRTT handoff Direction和 HRPD Redirection消息的协调 , 而是分别将 RRC Connection Release消息和 Mobility From EUTRAN消息发送给终端， 如果 EUTRAN确定需要进行 SRVCC和 PS 非优化切换， 则该 EUTRAN在发送了 lxRTT handoff Direction信息和 HRPD Redirection message信息后， 才释放无线资源； 而终端也是在接收到 lxRTT handoff Direction信息和 HRPD Redirection message信息之后 , 才进行空口的 切换， 即从 LTE空口切换到 lx和 HRPD空口。
下面结合附图 6具体阐述本发明实施例提供的一种切换装置。 本发明实施例提供一种切换装置， 所述装置包括接收模块 601、确定模块 602以及发送模块 603, 所述接收模块 601接收来自 MME的指示信息， 所述 指示信息用于指示网络侧和终端是否支持到 lx网络的加强 CSFB; 所述确定 模块 602用于当所述网络侧和终端支持到 lx网络的加强 CSFB, 则确定执行 到 lx网络的加强 CSFB以及确定执行到 HRPD网络的切换操作； 所述发送模 块 603当所述确定模块 602确定执行到 lx网络的加强 CSFB以及确定执行到 HRPD 网络的切换操作时， 向所述终端发送第一消息， 所述第一消息用于触 发所述终端进行到 lx网络的加强 CSFB和进行到 HRPD网络的切换操作； 所 述确定模块 602还用于当所述网络侧和 /或终端不支持到 lx网络的加强 CSFB, 则发起普通的 CSFB或结束流程。 另外 , 所述接收模块 601 , 还用于接收来自终端的包括 HRPD和 1 xRTT测量 信息的测量报告， 将所述测量报告信息发送给所述确定模块 602。 所述确定模块 602 包括第一确定单元和第二确定单元， 所述第一确定单 元， 用于根据网络状况确定进行到 HRPD网络的优化切换； 所述第二确定单 元 , 用于根据网络状况确定进行到 HRPD网络的非优化切换。 所述装置还包括协调模块 604和构造模块 605, 所述接收模块 601 , 还用 于在切换到 lx 网络准备过程中接收 Handoff Direction消息； 所述协调模块 604 , 用于当所述第一确定单元确定进行到 HRPD网络的优化切换时， 协调在 切换到 lx网络准备过程中所述接收模块 601接收的 Handoff Direction消息和 在切换到 HRPD 网络准备过程中接收的 HRPD message with HO access information消息；所述构造模块 605 ,用于构造 Mobility From EUTRAN消息 , 所述 Mobility From EUTRAN消息包括所述 Handoff Direction消息和 HRPD message with HO access information消息； 所述发送模块 603 , 还用于将所述 Mobility From EUTRAN消息发送给所述终端； 或 所述构造模块 605, 用于构造 HRPD non-optimized Redirection信息所述 HRPD non-optimized Redirection信息包括 HRPD Carrier information、 HRPD cell information和 HRPD paging channel信息中的至少一个； 所述协调模块 604, 还用于当所述第二确定单元确定进行到 HRPD网络的非优化切换时， 协 调在切换到 lx网络准备过程中所述接收模块 601获得的 Handoff Direction消 息和所述构造模块 605构造的所述的 HRPD non-optimized Redirection信息； 所述构造模块 605 ,用于构造 Mobility From EUTRAN消息 ,所述 Mobility From EUTRAN消息包括所述 Handoff Direction消息和所述 HRPD non-optimized Redirection信息； 所述发送模块 603, 还用于将所述 Mobility From EUTRAN 消息发送给所述终端。 所述发送模块 603, 还用于当所述第一确定单元确定进行到 HRPD 网络 的优化切换时 , 发送包括 handoff Direction消息的 Mobility From EUTRAN消 息以及包括 HRPD message with HO access info消息的 Mobility From EUTRAN 消息给终端 , 所述包括 handoff Direction消息的 Mobility From EUTRAN消息 用于触发所述终端进行到 lx网络的切换， 所述包括 HRPD message with HO access info 消息的 Mobility From EUTRAN 消息用于触发所述终端进行到 HRPD网络的切换； 或
所述发送模块 603 ,还用于当所述第二确定单元确定进行到 HRPD网络的 非优化切换时发送 RRC Connection Release消息和 Mobility From EUTRAN消 息给终端， 所述 RRC Connection Release消息用于触发所述终端进行到 lx网 络的切换，所述 Mobility From EUTRAN消息用于触发所述终端进行到 HRPD 网络的非优化切换。
下面结合图 7具体阐述本发明实施例提供的另一种切换装置。 本发明实施例提供的另一种切换装置， 所述装置包括获得模块 701、确定 模块 702以及发送模块 703, 所述获得模块 701 , 用于获得终端的 SVDO能力 信息和 SRVCC能力信息； 所述确定模块 702 , 用于根据网络情况确定进行到 lx网络的 SRVCC流程和到 HRPD网络的切换； 所述发送模块 703,用于向所 述终端发送第二消息， 所述第二消息用于触发所述终端进行到 lx网络的切换 和进行到 HRPD网络的切换操作。
所述获得模块 701 , 还用于接收来自终端的包括 HRPD和 lxRTT测量信 息的测量报告， 将所述测量报告信息发送给所述确定模块 702。 所述确定模块 702 包括第三确定单元和第四确定单元， 所述第三确定单 元， 用于根据网络状况确定进行到 HRPD网络的优化切换； 所述第四确定单 元 , 用于根据网络状况确定进行到 HRPD网络的非优化切换。 所述装置还包括协调模块 704和构造模块 705 , 所述获得模块 701 , 还用 于在切换到 1 χ 网络准备过程中接收 Handoff Direction消息； 所述协调模块 704, 用于当所述第三确定单元确定进行到 HRPD网络的优化切换时， 协调在 切换到 lx网络准备过程中所述获得模块 701接收的 Handoff Direction消息和 在切换到 HRPD 网络准备过程中接收的 HRPD message with HO access information消息；所述构造模块 705 ,用于构造 Mobility From EUTRAN消息， 所述 Mobility From EUTRAN消息包括所述 Handoff Direction消息和 HRPD message with HO access information消息； 所述发送模块 703 , 还用于将所述 Mobility From EUTRAN消息发送给所述终端； 或 所述构造模块 705 , 用于构造 HRPD non-optimized Redirection信息所述 HRPD non-optimized Redirection信息包括 HRPD Carrier information、 HRPD cell information和 HRPD paging channel信息中的至少一个； 所述协调模块 704, 还用于当所述第四确定单元确定进行到 HRPD网络的非优化切换时， 协 调在切换到 lx网络准备过程中所述获得模块 701获得的 Handoff Direction消 息和所述构造模块 705构造的所述的 HRPD non-optimized Redirection信息； 所述构造模块 705 ,用于构造 Mobility From EUTRAN消息 ,所述 Mobility From EUTRAN消息包括所述 Handoff Direction消息和所述 HRPD non-optimized Redirection信息； 所述发送模块 703 , 还用于将所述 Mobility From EUTRAN 消息发送给所述终端。 所述发送模块 703 , 还用于当所述第三确定单元确定进行到 HRPD 网络 的优化切换时 , 发送包括 handoff Direction消息的 Mobility From EUTRAN消 息以及包括 HRPD message with HO access info消息的 Mobility From EUTRAN 消息给终端 , 所述包括 handoff Direction消息的 Mobility From EUTRAN消息 用于触发所述终端进行到 lx网络的切换， 所述包括 HRPD message with HO access info 消息的 Mobility From EUTRAN 消息用于触发所述终端进行到 HRPD网络的切换； 或
所述发送模块 703 ,还用于当所述第四确定单元确定进行到 HRPD网络的 非优化切换时发送 RRC Connection Release消息和 Mobility From EUTRAN消 息给终端， 所述 RRC Connection Release消息用于触发所述终端进行到 lx网 络的切换，所述 Mobility From EUTRAN消息用于触发所述终端进行到 HRPD 网络的非优化切换。
本领域普通技术人员可以理解以上实施例只是本发明的一个较佳的实施 例， 不对本专利构成限定， 其他类似的修改与变化均在本专利的保护范围之 内。
上述发明实施例中的 "接收" 一词可以理解为主动从其他模块获取也可 以是接收其他模块发送来的信息。 上述模块可以合并为一个模块， 也可以进 一步拆分成多个子模块。 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。
上述发明实施例序号仅仅为了描述， 不代表实施例的优劣。
权利要求的内容记载的方案也是本发明实施例的保护范围。
以上所述仅为本发明的较佳实施例而已， 并非用于限定本发明的保护范 围。 凡在本发明的精神和原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围之内。

Claims

权利 要求 书
1、 一种切换方法， 其特征在于， 所述方法包括：
接收来自移动管理实体 MME的指示信息，所述指示信息用于指示网络侧和 终端支持到 lx网络的加强语音回退 CSFB,确定执行到 lx网络的加强 CSFB以 及确定执行到 HRPD网络的切换操作；
向所述终端发送第一消息， 所述第一消息用于触发所述终端进行到 lx网络 的加强 CSFB和进行到高速分组数据 HRPD网络的切换操作。
2、 如权利要求 1所述的方法， 其特征在于， 所述接收来自 MME的指示信 息之前， 所述方法还包括，
所述终端上 支持 SVDO的能力 , 所述 SVDO的能力为所述终端的网络能 力或无线能力。
3、 如权利要求 2所述的方法， 其特征在于， 所述接收来自 MME的指示信 息， 所述指示信息用于指示网络侧和终端支持到 lx网络的加强 CSFB, 包括， 在所述 MME接收所述终端上报的加强 CSFB能力支持指示 enhanced CSFB capability support indication, 并当所述 MME支持加强的 CSFB之后 , 接收所述 MME 发送的加强的语音回退可操作指示信息 enhanced CSFB Operation Possible, 所述指示信息用于指示网络侧和终端支持到 lx网络的加强的 CSFB; 或在所述终端发送承载有 enhanced CSFB indicator信息的 Service Request (服务请求）给所述 MME, 并当所述 MME支持加强的 CSFB之后 , 接收所述 MME发送的加强的语音回退指示信息 enhanced CSFB indicator, 所述指示信息 用于指示网络侧和终端支持到 lx网络的加强 CSFB。
4、 如权利要求 3所述的方法 , 其特征在于 , 在确定执行到 HRPD网络的切 换操作之前， 所述方法还包括：
从终端获取包括 HRPD网络和 lx网络的测量信息的测量报告。
5、 如权利要求 3所述的方法， 其特征在于， 所述确定执行到 Ix网络的加 强 CSFB, 包括：
进行到 lx网络的切换准备， 根据 UE的支持 SVDO能力和接收到的加强的 语音回退可操作指示信息 enhanced CSFB Operation Possible信息确定需要执行 加强 CSFB。
6、如权利要求 5所述的方法，其特征在于，当所述终端上报的 enhanced CSFB capability support indication作为所述终端的无线能力上 4艮时， 在所述进行到 lx 网络的切换准备的过程中， 所述方法还包括：
向 MME发送 S1-AP消息指示所述 MME进行加强 CSFB或所述 MME根据 接收到的所述 S 1 -AP消息确定进行加强 CSFB。
7、 如权利要求 1所述的方法， 其特征在于， 所述确定执行到 HRPD网络的 切换操作， 包括：
进行到 HRPD的切换准备过程， 才艮据网络状况确定进行到 HRPD网络的优 4t切换； 或
才艮据网络状况确定进行到 HRPD网络的非优化切换。
8、 如权利要求 7所述的方法， 其特征在于， 所述根据网络状况确定进行到 HRPD网络的优化切换 , 包括：
才艮据预先配置的策略、 PS优化切换信息和测量 告信息中的至少一个确定 进行到 HRPD网络的优化切换； 或
所述根据网络状况确定进行到 HRPD网络的非优化切换， 包括：
根据预先配置的策略、 优化切换失败和网络不支持优化切换中的至少一个 确定进行到 HRPD网络的非优化切换。
9、如权利要求 5所述的方法， 其特征在于， 所述向所述终端发送第一消息， 所述第一消息用于触发所述终端进行到 lx网络的加强 CSFB和进行到 HRPD网 络的切换操作， 包括：
当进行到 HRPD网络的优化切换时，协调到 lx网络的切换准备过程中获得 的 Handoff Direction消息和切换到 HRPD网络准备过程中获得的 HRPD message with HO access information消息 ,所述 Handoff Direction消息包括切换到 lx网络 的接入配置信息 , 所述 HRPD message with HO access information消息包括切换 接入信息 , 构造 Mobility From EUTRAN消息 , 所述 Mobility From EUTRAN消 息包括所述 Handoff Direction消息和 HRPD message with HO access information 消息， 所述 Handoff Direction消息用于触发所述终端发起到 lx网络的切换， 所 述 HRPD message with HO access information消息用于触发所述终端发起到所述 HRPD网路的优化切换 , 将所述 Mobility From EUTRAN消息发送给所述终端； 或
当进行到 HRPD 网络的优化切换时， 发送包括 handoff Direction 消息的 Mobility From EUTRAN消息以及包括 HRPD message with HO access info消息的 Mobility From EUTRAN消息给终端 ,所述包括 handoff Direction消息的 Mobility From EUTRAN消息用于触发所述终端进行到 lx网络的切换， 所述包括 HRPD message with HO access info消息的 Mobility From EUTRAN消息用于触发所述终 端进行到 HRPD网络的切换； 或
当进行到 HRPD网络的非优化切换时，协调切换到 lx网络准备过程中获得 的 Handoff Direction消息和构造的 HRPD non-optimized Redirection信息, 所述 Handoff Direction 消息包括切换到 lx 网路的接入配置信息 , 所述 HRPD non-optimized Redirection 信息包括 HRPD Carrier information、 HRPD cell information和 HRPD paging channel信息中的至少一个, 构造 Mobility From EUTRAN消息， 所述 Mobility From EUTRAN消息包括所述 Handoff Direction 消息和所述 HRPD non-optimized Redirection信息 , 所述 Handoff Direction消息 用于触发所述终端进行到 lx网络的切换， 所述 HRPD non-optimized Redirection 信息用于触发所述终端进行到 HRPD网路的非优化切换； 或
当进行到 HRPD网络的非优化切换时，发送 RRC Connection Release消息和 Mobility From EUTRAN消息给终端 , 所述 RRC Connection Release消息用于触 发所述终端进行到 lx网络的切换， 所述 Mobility From EUTRAN消息用于触发 所述终端进行到 HRPD网络的非优化切换。
10、 一种切换方法， 其特征在于， 获得终端的 SVDO能力信息和 SRVCC能力信息； 根据网络情况确定进行到 lx网络的 SRVCC流程和到 HRPD网络的切换； 向所述终端发送第二消息， 所述第二消息用于触发所述终端进行到 lx网络 的切换和进行到 HRPD网络的切换操作。
11、 如权利要求 10所述的方法， 其特征在于， 所述根据网络情况确定进行 到 lx网络的 SRVCC流程， 包括：
从终端获取包括 lx网络测量信息的测量报告， 进行到 lx网络的切换准备， 根据 UE的 SVDO能力和 SRVCC支持信息和测量报告信息确定需要执行到 lx 网络的 SRVCC 流程。
12、 如权利要求 10或 11所述的方法， 其特征在于， 所述根据网络情况确 定进行到 HRPD网络的切换， 包括： 从终端获取包括 HRPD网络测量信息的测量报告；
触发终端进行到 HRPD的切换准备过程， 根据网络状况确定进行到 HRPD 网络的优化切换， 或根据网络状况确定进行到 HRPD网络的非优化切换。
13、 如权利要求 12所述的方法， 其特征在于， 所述根据网络状况确定进行 到 HRPD网络的优化切换， 包括：
根据预先配置的策略、 PS优化切换信息和测量 ^艮告信息中的至少一个， 以 及所述测量 告确定进行到 HRPD网络的优化切换； 或
根据预先配置的策略、 优化切换失败和网络不支持优化切换中的至少一个 以及所述测量报告， 确定进行到 HRPD网络的非优化切换。
14、 如权利要求 11所述的方法， 其特征在于， 所述向所述终端发送第二消 息，所述第二消息用于触发所述终端进行到 lx网络的切换和进行到 HRPD网络 的切换操作， 包括：
当进行到 HRPD网络的优化切换时，协调到 lx网络的切换准备过程中获得 的 Handoff Direction消息和切换到 HRPD网络准备过程中获得的 HRPD message with HO access information消息 ,所述 Handoff Direction消息包括切换到 lx网络 的接入配置信息 , 所述 HRPD message with HO access information消息包括切换 接入信息 , 构造 Mobility From EUTRAN消息 , 所述 Mobility From EUTRAN消 息包括所述 Handoff Direction消息和 HRPD message with HO access information 消息， 所述 Handoff Direction消息用于触发所述终端发起到 lx网络的切换， 所 述 HRPD message with HO access information消息用于触发所述终端发起到所述 HRPD网路的优化切换； 或
当进行到 HRPD 网络的优化切换时， 发送包括 handoff Direction 消息的 Mobility From EUTRAN消息以及包括 HRPD message with HO access info消息的 Mobility From EUTRAN消息给终端 ,所述包括 handoff Direction消息的 Mobility From EUTRAN消息用于触发所述终端进行到 lx网络的切换， 所述包括 HRPD message with HO access info消息的 Mobility From EUTRAN消息用于触发所述终 端进行到 HRPD网络的切换； 或
当进行到 HRPD网络的非优化切换时，协调切换到 lx网络准备过程中获得 的 Handoff Direction消息和构造的 HRPD non-optimized Redirection信息, 所述 Handoff Direction 消息包括切换到 lx 网路的接入配置信息 , 所述 HRPD non-optimized Redirection 信息包括 HRPD Carrier information、 HRPD cell information和 HRPD paging channel信息中的至少一个， 构造 Mobility From EUTRAN消息 , 所述 Mobility From EUTRAN消息包括所述 Handoff Direction 消息和所述 HRPD non-optimized Redirection信息 , 所述 Handoff Direction消息 用于触发所述终端进行到 lx网络的切换， 所述 HRPD non-optimized Redirection 信息用于触发所述终端进行到 HRPD网路的非优化切换； 或 当进行到 HRPD网络的非优化切换时，发送 RRC Connection Release消息和 Mobility From EUTRAN消息给终端 , 所述 RRC Connection Release消息用于触 发所述终端进行到 lx网络的切换， 所述 Mobility From EUTRAN消息用于触发 所述终端进行到 HRPD网络的非优化切换。
15、 一种切换装置， 其特征在于， 所述装置包括接收模块、 确定模块以及 发送模块， 所述接收模块，用于接收来自移动管理实体 MME的指示信息，所述指示信 息用于指示网络侧和终端支持到 lx网络的加强语音回退 CSFB; 所述确定模块，用于确定执行到 lx网络的加强 CSFB以及确定执行到 HRPD 网络的切换操作； 所述发送模块， 用于当所述确定模块确定执行到 lx网络的加强 CSFB以及 确定执行到 HRPD网络的切换操作时， 向所述终端发送第一消息， 所述第一消 息用于触发所述终端进行到 lx网络的加强 CSFB和进行到高速分组数据 HRPD 网络的切换操作。
16、 如权利要求 15所述的切换装置， 其特征在于， 所述接收模块，还用于接收来自终端的包括 HRPD网络和 lx网络的测量信 息的测量报告 , 将所述测量报告信息发送给所述确定模块。
17、 如权利要求 16所述的切换装置， 其特征在于， 所述确定模块包括第一 确定单元和第二确定单元， 所述第一确定单元，用于根据网络状况确定进行到 HRPD网络的优化切换； 所述第二确定单元， 用于根据网络状况确定进行到 HRPD网络的非优化切 换。
18、 如权利要求 17所述的切换装置， 其特征在于， 所述装置还包括协调模 块和构造模块， 所述接收模块，还用于在到 lx网络的切换准备过程中接收 HandoffDirection 消息； 所述协调模块， 用于当所述第一确定单元确定进行到 HRPD网络的优化切 换时，协调在到 lx网络的切换准备过程中所述接收模块接收的 HandoffDirection 消息和在切换到 HRPD网络准备过程中接收的 HRPD message with HO access information消息； 所述构造模块，用于构造 Mobility From EUTRAN消息，所述 Mobility From EUTRAN消息包括所述 Handoff Direction消息和 HRPD message with HO access information消息； 所述发送模块， 还用于将所述 Mobility From EUTRAN消息发送给所述终 端； 或 所述构造模块， 用于构造 HRPD non-optimized Redirection信息所述 HRPD non-optimized Redirection 信息包括 HRPD Carrier information、 HRPD cell information和 HRPD paging channel信息中的至少一个； 所述协调模块， 还用于当所述第二确定单元确定进行到 HRPD网络的非优 化切换时， 协调在切换到 lx 网络准备过程中所述接收模块获得的 Handoff Direction消息和所述构造模块构造的所述的 HRPD non-optimized Redirection信 息; 所述构造模块 ,用于构造 Mobility From EUTRAN消息 ,所述 Mobility From EUTRAN 消息包括所述 Handoff Direction 消息和所述 HRPD non-optimized Redirection信息； 所述发送模块， 还用于将所述 Mobility From EUTRAN消息发送给所述终 端。
19、 如权利要求 17所述的切换装置， 其特征在于， 所述发送模块， 还用于当所述第一确定单元确定进行到 HRPD网络的优化 切换时 , 发送包括 handoff Direction消息的 Mobility From EUTRAN消息以及包 括 HRPD message with HO access info消息的 Mobility From EUTRAN消息给终 端 , 所述包括 handoff Direction消息的 Mobility From EUTRAN消息用于触发所 述终端进行到 lx网络的切换，所述包括 HRPD message with HO access info消息 的 Mobility From EUTRAN消息用于触发所述终端进行到 HRPD网络的切换；或 所述发送模块， 还用于当所述第二确定单元确定进行到 HRPD网络的非优 化切换时发送 RRC Connection Release消息和 Mobility From EUTRAN消息给终 端，所述 RRC Connection Release消息用于触发所述终端进行到 lx网络的切换， 所述 Mobility From EUTRAN消息用于触发所述终端进行到 HRPD网络的非优化 切换。
20、 一种切换装置， 其特征在于， 所述装置包括获得模块、 确定模块以及 发送模块， 所述获得模块， 用于获得终端的 SVDO能力信息和 SRVCC能力信息； 所述确定模块， 用于根据网络情况确定进行到 lx网络的 SRVCC流程和到 HRPD网络的切换； 所述发送模块， 用于向所述终端发送第二消息， 所述第二消息用于触发所 述终端进行到 lx网络的切换和进行到 HRPD网络的切换操作。
21、 如权利要求 20所述的装置， 其特征在于， 所述获得模块，还用于接收来自终端的包括 HRPD网络和 lx网络的测量信 息的测量报告 , 将所述测量报告信息发送给所述确定模块。
22、 如权利要求 21所述的装置， 其特征在于， 所述确定模块包括第三确定 单元和第四确定单元， 所述第三确定单元，用于根据网络状况确定进行到 HRPD网络的优化切换； 所述第四确定单元， 用于根据网络状况确定进行到 HRPD网络的非优化切 换。
23、 如权利要求 22所述的装置， 其特征在于， 所述装置还包括协调模块和 构造模块， 所述获得模块，还用于在到 lx网络的切换准备过程中接收 HandoffDirection 消息； 所述协调模块， 用于当所述第三确定单元确定进行到 HRPD网络的优化切 换时，协调在到 lx网络的切换准备过程中所述获得模块接收的 HandoffDirection 消息和在切换到 HRPD网络准备过程中接收的 HRPD message with HO access information消息； 所述构造模块 ,用于构造 Mobility From EUTRAN消息 ,所述 Mobility From EUTRAN消息包括所述 Handoff Direction消息和 HRPD message with HO access information消息； 所述发送模块， 还用于将所述 Mobility From EUTRAN消息发送给所述终 端； 或 所述构造模块， 用于构造 HRPD non-optimized Redirection信息所述 HRPD non-optimized Redirection 信息包括 HRPD Carrier information、 HRPD cell information和 HRPD paging channel信息中的至少一个； 所述协调模块， 还用于当所述第四确定单元确定进行到 HRPD网络的非优 化切换时， 协调在切换到 lx 网络准备过程中所述获得模块获得的 Handoff Direction消息和所述构造模块构造的所述的 HRPD non-optimized Redirection信 息； 所述构造模块 ,用于构造 Mobility From EUTRAN消息 ,所述 Mobility From EUTRAN 消息包括所述 Handoff Direction 消息和所述 HRPD non-optimized Redirection信息； 所述发送模块， 还用于将所述 Mobility From EUTRAN消息发送给所述终 端。
24、 如权利要求 22所述的切换装置， 其特征在于， 所述发送模块， 还用于当所述第三确定单元确定进行到 HRPD网络的优化 切换时， 发送包括 handoff Direction消息的 Mobility From EUTRAN消息以及包 括 HRPD message with HO access info消息的 Mobility From EUTRAN消息给终 端， 所述包括 handoff Direction消息的 Mobility From EUTRAN消息用于触发所 述终端进行到 lx网絡的切换，所述包括 HRPD message with HO access info消息 的 Mobility From EUTRAN消息用于触发所述终端进行到 HRPD网络的切换；或 所述发送模块， 还用于当所述第四确定单元确定进行到 HRPD网络的非优 化切换时发送 RRC Connection Release消息和 Mobility From EUTRAN消息给终 端，所述 RRC Connection Release消息用于触发所述终端进行到 lx网络的切换， 所述 Mobility From EUTRAN消息用于触发所述终端进行到 HRPD网络的非优化 切换。
PCT/CN2010/075177 2009-07-15 2010-07-15 一种切换方法和装置 Ceased WO2011006440A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2012519876A JP5230843B2 (ja) 2009-07-15 2010-07-15 ハンドオーバのための方法および機器
KR1020127003828A KR101320984B1 (ko) 2009-07-15 2010-07-15 핸드오버를 위한 방법 및 장치
US13/350,406 US20120115489A1 (en) 2009-07-15 2012-01-13 Method and apparatus for handover

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200910108783.4 2009-07-15
CN2009101087834A CN101959269B (zh) 2009-07-15 2009-07-15 一种切换方法和装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/350,406 Continuation US20120115489A1 (en) 2009-07-15 2012-01-13 Method and apparatus for handover

Publications (1)

Publication Number Publication Date
WO2011006440A1 true WO2011006440A1 (zh) 2011-01-20

Family

ID=43448948

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/075177 Ceased WO2011006440A1 (zh) 2009-07-15 2010-07-15 一种切换方法和装置

Country Status (5)

Country Link
US (1) US20120115489A1 (zh)
JP (1) JP5230843B2 (zh)
KR (1) KR101320984B1 (zh)
CN (1) CN101959269B (zh)
WO (1) WO2011006440A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014529960A (ja) * 2011-08-30 2014-11-13 テレフオンアクチーボラゲット エル エムエリクソン（パブル） 端末の音声セッションをハンドオーバするためのターゲットのコアネットワークを選択する方法及びノード
CN111641987A (zh) * 2018-01-11 2020-09-08 Oppo广东移动通信有限公司 基于业务进行处理的方法、终端设备、网络设备及计算机存储介质

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101932057B (zh) * 2009-06-22 2013-08-28 华为技术有限公司 切换处理方法、切换处理的通信装置及通信系统
GB2482919B (en) * 2010-08-20 2014-05-07 Samsung Electronics Co Ltd Retrieval of user equipment capabilities by application server
CN102647694B (zh) * 2011-02-18 2017-07-21 中兴通讯股份有限公司 语音业务呼叫连续性实现方法和系统
EP3232712B1 (en) 2011-03-31 2020-11-04 Telefonaktiebolaget LM Ericsson (publ) Handling call transfer in a communication network
US9516623B2 (en) * 2012-03-27 2016-12-06 Nokia Solutions And Networks Oy Enabling CDMA2000 system sharing in LTE
EP2835013A4 (en) * 2012-04-05 2016-07-20 Qualcomm Inc METHOD AND DEVICE FOR THE JOINT USE OF AN LTE RADIO ACCESS NETWORK
CN102711194A (zh) * 2012-05-18 2012-10-03 中兴通讯股份有限公司 一种语音业务切换过程中实现数据业务切换的方法及系统
CN102833808A (zh) * 2012-05-21 2012-12-19 中兴通讯股份有限公司 进行业务切换的方法、终端、网络侧设备以及高层设备
WO2013181805A1 (zh) * 2012-06-06 2013-12-12 华为技术有限公司 回到长期演进网络的方法、移动交换中心及系统
KR101999122B1 (ko) 2012-07-10 2019-07-11 삼성전자 주식회사 무선 통신 시스템에서 연결 모드가 길게 유지되는 단말의 핸드오버 제어 방법 및 장치
US8942762B1 (en) * 2012-10-10 2015-01-27 Sprint Spectrum L.P. Adjustment of communication parameters in a coverage area based on prevalence of eCSFB devices in the coverage area
EP2925041A4 (en) * 2012-11-23 2016-01-20 Huawei Tech Co Ltd COMMUNICATION METHOD, USER DEVICE AND UNIFORM RADIO CONTROL
WO2014117390A1 (en) * 2013-02-01 2014-08-07 Qualcomm Incorporated Single radio tune-away for lte voice without csfb
WO2014121825A1 (en) * 2013-02-06 2014-08-14 Telefonaktiebolaget L M Ericsson (Publ) A node and method for a combined single radio voice call continuity and a packet switched handover
US10038648B2 (en) 2013-04-02 2018-07-31 Apple Inc. Facilitating return to a first wireless network from a second wireless network after performance of a circuit switched fallback procedure
CN103249019B (zh) * 2013-04-03 2016-08-17 大唐移动通信设备有限公司 一种单一无线语音呼叫连续性的处理方法和系统
CN105230083B (zh) * 2013-05-21 2019-04-30 三星电子株式会社 选择移动通信网络中的小区的方法和装置
CN103281757B (zh) * 2013-06-08 2017-02-08 华为终端有限公司 用户设备的通信方法及用户设备
JP6246344B2 (ja) * 2013-06-13 2017-12-13 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． 回線交換フォールバック方法及び装置
CN103634864B (zh) * 2013-12-23 2017-08-25 展讯通信（上海）有限公司 多模无线终端及其电路域回落方法
US9402218B1 (en) * 2014-01-07 2016-07-26 Sprint Communications Company L.P. Prioritization of network handovers
US10299172B2 (en) * 2014-02-24 2019-05-21 Intel IP Corporation Circuit switched fallback
US9179433B1 (en) 2014-03-07 2015-11-03 Sprint Spectrum L.P. Registration with radio access network in response to registration with call server
US20160135093A1 (en) * 2014-11-10 2016-05-12 Samsung Electronics Co., Ltd. Apparatus and method for handling single radio voice call continuity handover
CN104602310B (zh) * 2014-12-03 2018-04-20 中国联合网络通信集团有限公司 一种csfb电路域回落方法及移动交换中心
WO2016106559A1 (zh) * 2014-12-30 2016-07-07 华为技术有限公司 一种联合注册方法和装置
CN105472677A (zh) * 2015-12-28 2016-04-06 华为技术有限公司 切换方法和用户设备
WO2017177427A1 (zh) * 2016-04-14 2017-10-19 华为技术有限公司 业务处理方法和相关装置及通信系统
CN108668296B (zh) * 2017-03-29 2021-07-27 中国移动通信集团湖北有限公司 电路域回落感知差小区的确定方法、装置及设备
KR102058556B1 (ko) 2017-10-13 2019-12-30 에스케이텔레콤 주식회사 핸드오버 설정 정보 갱신 방법과, 상기 방법이 적용된 기지국 및 단말

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1581996A (zh) * 2003-08-04 2005-02-16 华为技术有限公司 一种进行业务重定向的实现方法
US20060109817A1 (en) * 2004-11-22 2006-05-25 Shreesha Ramanna Method and system for inter-technology active handoff of a hybrid communication device
US20070155385A1 (en) * 2005-12-29 2007-07-05 Srinivasan Balasubramanian Queue prediction to reduce virtual handoff latency
CN101222765A (zh) * 2008-01-24 2008-07-16 中兴通讯股份有限公司 电路域回落的控制方法、系统、及装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2850518B1 (fr) * 2003-01-29 2005-05-20 Evolium Sas Procede pour l'acces simultane a des services circuit et a des services paquet dans un systeme cellulaire de radiocommunications mobiles
WO2008148429A1 (en) * 2007-06-08 2008-12-11 Telefonaktiebolaget Lm Ericsson (Publ) Handover from circuit switched over packet switched domain to circuit switched domain
EP2156692B1 (en) * 2007-06-08 2017-09-06 Telefonaktiebolaget LM Ericsson (publ) Circuit switched fallback mechanism

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1581996A (zh) * 2003-08-04 2005-02-16 华为技术有限公司 一种进行业务重定向的实现方法
US20060109817A1 (en) * 2004-11-22 2006-05-25 Shreesha Ramanna Method and system for inter-technology active handoff of a hybrid communication device
US20060109818A1 (en) * 2004-11-22 2006-05-25 Shreesha Ramanna Method and system for inter-technology active handoff of a hybrid communication device
US20070155385A1 (en) * 2005-12-29 2007-07-05 Srinivasan Balasubramanian Queue prediction to reduce virtual handoff latency
CN101222765A (zh) * 2008-01-24 2008-07-16 中兴通讯股份有限公司 电路域回落的控制方法、系统、及装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014529960A (ja) * 2011-08-30 2014-11-13 テレフオンアクチーボラゲット エル エムエリクソン（パブル） 端末の音声セッションをハンドオーバするためのターゲットのコアネットワークを選択する方法及びノード
CN111641987A (zh) * 2018-01-11 2020-09-08 Oppo广东移动通信有限公司 基于业务进行处理的方法、终端设备、网络设备及计算机存储介质
EP3716687A4 (en) * 2018-01-11 2020-11-11 Guangdong Oppo Mobile Telecommunications Corp., Ltd. PROCESSING BASED ON A SERVICE, TERMINAL DEVICE AND NETWORK DEVICE
US11323936B2 (en) 2018-01-11 2022-05-03 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Service-based processing method, terminal device, and network device
CN111641987B (zh) * 2018-01-11 2022-11-04 Oppo广东移动通信有限公司 基于业务进行处理的方法、终端设备、网络设备及计算机存储介质

Also Published As

Publication number Publication date
KR101320984B1 (ko) 2013-10-23
CN101959269B (zh) 2013-04-24
KR20120047943A (ko) 2012-05-14
JP2012533241A (ja) 2012-12-20
CN101959269A (zh) 2011-01-26
US20120115489A1 (en) 2012-05-10
JP5230843B2 (ja) 2013-07-10

Similar Documents

Publication Publication Date Title
CN101959269B (zh) 一种切换方法和装置
EP2560437B1 (en) Process method, device and system for reverse single radio voice call continuity
US9344924B2 (en) Method of handling handover security configuration and related communication device
JP5536954B2 (ja) 回路交換ドメインからパケット交換ドメインへのハンドオーバー方法、装置、および通信システム
US20140051443A1 (en) Methods and Apparatus for Enhancing Circuit-Switched Call Fallback (CSFB) Service for a Shared Network Node
US10587757B2 (en) Method and apparatus for processing terminal that is performing voice service, and communications system
CN101370261B (zh) 从cs域向ps域切换的资源准备方法及通信设备
WO2012051903A1 (zh) 一种多载波的切换方法和装置
WO2010075729A1 (zh) 数据传输路径的控制方法和系统、移动性管理网元和终端
WO2009062440A1 (en) A method, apparatus and system for realizing network optimized handover
WO2009130042A2 (en) Supporting a session management in case of a transfer between different radio access networks
WO2009024082A1 (en) A handing-off method and a terminal re-location method
WO2008106891A1 (fr) Procédé, système de communication et entité de réseau pour le transfert d'un groupe de nœuds
US9232454B2 (en) Data offloading method
CN101931988B (zh) 一种网络切换方法、演进基站及通信系统
JP2009049815A (ja) 無線通信システム、無線通信方法及び無線端末
WO2011085668A1 (zh) 切换控制方法和相关设备及系统
WO2014198043A1 (zh) 电路域回退的方法及设备
WO2010105525A1 (zh) 一种切换的优化方法、切换装置和系统
CN102369756B (zh) 一种切换方法和装置
WO2016054822A1 (zh) Csfb呼叫建立方法及装置
WO2009092260A1 (zh) 实现语音呼叫连续性的方法、互联功能实体及终端设备
WO2017219959A1 (zh) 一种语音调度方法及装置
CN101938801B (zh) 一种实现网络间重定位的方法及系统
WO2011109998A1 (zh) 一种承载处理方法、系统及移动管理网元

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10799438

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2012519876

Country of ref document: JP

ENP Entry into the national phase

Ref document number: 20127003828

Country of ref document: KR

Kind code of ref document: A

122 Ep: pct application non-entry in european phase

Ref document number: 10799438

Country of ref document: EP

Kind code of ref document: A1