WO2016138695A1 - Vo-LTE终端恢复数据业务的控制方法、系统和终端 - Google Patents

Vo-LTE终端恢复数据业务的控制方法、系统和终端 Download PDF

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Publication number
WO2016138695A1
WO2016138695A1 PCT/CN2015/078001 CN2015078001W WO2016138695A1 WO 2016138695 A1 WO2016138695 A1 WO 2016138695A1 CN 2015078001 W CN2015078001 W CN 2015078001W WO 2016138695 A1 WO2016138695 A1 WO 2016138695A1
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WIPO (PCT)
Prior art keywords
protocol stack
lte
terminal
lte network
target
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PCT/CN2015/078001
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English (en)
French (fr)
Inventor
杨奎
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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    • 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
    • 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
    • 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
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a Vo-LTE terminal recovery data service control method, a Vo-LTE terminal recovery data service control system, and a Vo-LTE terminal.
  • Vo-LTE Voice over LTE
  • SRVCC Single Radio Voice Call Continuity
  • the current SRVCC technical solution only supports the fallback from the IMS domain to the CS (Circuit Switched, circuit switching, corresponding to voice, short message, and supplementary services) domain and does not support the return of the IMS domain from the CS domain.
  • CS Circuit Switched, circuit switching, corresponding to voice, short message, and supplementary services
  • CS Circuit Switched, circuit switching, corresponding to voice, short message, and supplementary services
  • PS Packet Switched, packet switching, corresponding to Digital services
  • the CS RAT (such as GSM) used by some operators does not support PSCS service concurrency, which means that the SRVCC must interrupt the PS service after it returns. Even if the terminal returns to the area supporting LTE, it can only wait until the end of the call. Recover data services to LTE.
  • the present invention is based on at least one of the above technical problems, and proposes a new control scheme for recovering data services of a Vo-LTE terminal, which can restore the data service of the LTE network as soon as possible while ensuring the quality of the voice service, thereby improving the user experience.
  • a new control scheme for recovering data services of a Vo-LTE terminal which can restore the data service of the LTE network as soon as possible while ensuring the quality of the voice service, thereby improving the user experience.
  • the present invention provides a method for controlling a data service of a Vo-LTE terminal, where the Vo-LTE terminal includes a first protocol stack and a second protocol stack, and the Vo-LTE terminal supports dual mode single standby voice.
  • the call continuity scheme includes: determining whether to leave the LTE network during the voice service of the Vo-LTE terminal; obtaining a fallback indication of the SRVCC solution when determining to leave the LTE network; and according to the SRVCC scheme a fallback indication, activating a first protocol stack of the Vo-LTE terminal to maintain voice traffic; and activating a second protocol stack of the Vo-LTE terminal to implement backhaul of the LTE network according to a fallback indication of the SRVCC scheme To complete the process of restoring data services.
  • the first protocol stack and the second protocol stack are set in the terminal, so that the terminal can complete the return of the LTE network through the second protocol stack while the voice service is continuous, so as to be fast after the voice service ends.
  • the IP multimedia subsystem is registered, so that the terminal can quickly recover data services.
  • the IP multimedia subsystem can be used to implement efficient voice services.
  • the terminal In the process of performing voice service transmission by the Vo-LTE terminal, if it is determined that the LTE network is disconnected from the LTE network, since the Vo-LTE terminal includes the first protocol stack and the second protocol stack, the terminal is activated by acquiring the fallback indication of the SRVCC scheme.
  • a protocol stack can effectively maintain the voice service and activate the second protocol stack of the terminal according to the fallback indication of the SRVCC scheme.
  • the LTE network can be relocated, and the data service can be quickly recovered after the call ends.
  • the terminal when the terminal leaves the LTE coverage area, receiving the fallback indication of the SRVCC, deregistering the IP multimedia subsystem, simultaneously activating the first protocol stack of the terminal, and camping the first protocol stack on the target CS RAT of the SRVCC, the terminal is After the call ends, the first protocol stack residing on the CS RAT is logged off, and the second protocol stack of the terminal is activated according to the fallback indication of the received SRVCC, and the terminal periodically searches for the LTE network. When the terminal enters the LTE coverage area, the call ends. The voice service re-residents on LTE and re-register the IP multimedia subsystem to restore data services and improve user experience.
  • obtaining the fallback indication of the SRVCC scheme includes the following specific steps: acquiring an indication of falling back to the CS domain; and deregistering the IP multimedia subsystem.
  • the IP multimedia subsystem when the terminal leaves the LTE coverage area, the IP multimedia subsystem is deregistered by acquiring the indication of falling back to the CS domain, thereby maintaining the continuity of the voice service, and effectively reducing the Vo-LTE.
  • the load memory of the terminal when the terminal leaves the LTE coverage area, the IP multimedia subsystem is deregistered by acquiring the indication of falling back to the CS domain, thereby maintaining the continuity of the voice service, and effectively reducing the Vo-LTE.
  • the terminal when the terminal leaves the LTE coverage area, the terminal falls back to the CS domain through the first protocol stack, and selects the target CS domain in the CS domain to camp, ensuring continuity of the voice service, and simultaneously deregistering the IP multimedia subsystem.
  • the terminal enters the LTE coverage area, after determining that the voice service ends, it can ensure that the IP multimedia subsystem is re-registered immediately, thereby quickly completing the data service recovery process of the Vo-LTE terminal.
  • the first protocol stack of the Vo-LTE terminal is activated to maintain a voice service, and the following specific steps are included: controlling the Vo-LTE terminal to fall back to the CS domain through the first protocol stack; Selecting a target CS domain in the CS domain to camp to maintain the voice service; after the voice service ends, controlling the first protocol stack to leave the target CS domain; and deregistering the first protocol Stack.
  • the target CS domain in the CS domain can be selected to be camped, thereby maintaining the voice service, and when deregistering the first on the CS domain
  • the service data can be recovered immediately.
  • the second protocol stack of the Vo-LTE terminal is activated to implement LTE network backhaul, and the following specific steps are included: controlling the second protocol stack to periodically search the LTE network; determining the Whether there is a target LTE network supporting the second protocol stack camping in the LTE network; when determining that the target LTE network supporting the second protocol stack camping exists in the LTE network, controlling the second protocol stack is Determining whether the second protocol stack is in signaling interaction with the target LTE network, and determining whether to log off when determining that the second protocol stack is in signaling interaction with the target LTE network. Determining, according to the determination result, whether to re-register the IP multimedia subsystem to recover the data service.
  • the LTE network when searching for the target LTE network according to the second protocol stack timing, supports the target LTE network where the second protocol stack resides, and controls the target LTE network where the second protocol stack resides to register, and the second protocol The stack interacts with the target LTE network, and the second protocol stack resides in the target LTE network, so that the data service recovery process of the Vo-LTE terminal can be completed.
  • the Vo-LTE terminal can also be efficiently implemented through the LTE network.
  • the voice service so the logout of the first protocol stack at this time can effectively reduce the power consumption and memory usage of the terminal.
  • the media subsystem includes the following specific steps: re-registering the IP multimedia subsystem when determining that the second protocol stack has signaling interaction with the target LTE network and the first protocol stack has been logged out .
  • the Vo can be completed.
  • the Vo-LTE terminal can complete an efficient voice service through the LTE network, thereby improving the user experience.
  • a control system for recovering data traffic of a Vo-LTE terminal includes a first protocol stack and a second protocol stack, and the Vo-LTE terminal supports dual mode
  • the single-standby voice call continuity scheme includes: a determining unit, configured to determine whether to leave the LTE network during the voice service of the Vo-LTE terminal, and an acquiring unit, configured to acquire, when determining to leave the LTE network Determining a fallback indication of the SRVCC scheme; an activation unit, configured to activate a first protocol stack of the Vo-LTE terminal to maintain a voice service according to a fallback indication of the SRVCC scheme; and a fallback indication according to the SRVCC scheme,
  • the second protocol stack of the Vo-LTE terminal is activated to implement the return of the LTE network to complete the process of restoring data services by the Vo-LTE terminal.
  • the first protocol stack and the second protocol stack are set in the terminal, so that the terminal can complete the return of the LTE network through the second protocol stack while the voice service is continuous, so as to be fast after the voice service ends.
  • the IP multimedia subsystem is registered, so that the terminal can quickly recover data services.
  • the IP multimedia subsystem can be used to implement efficient voice services.
  • the terminal In the process of performing voice service transmission by the Vo-LTE terminal, if it is determined that the LTE network is disconnected from the LTE network, since the Vo-LTE terminal includes the first protocol stack and the second protocol stack, the terminal is activated by acquiring the fallback indication of the SRVCC scheme.
  • a protocol stack can effectively maintain the voice service and activate the second protocol stack of the terminal according to the fallback indication of the SRVCC scheme.
  • the LTE network can be relocated, and the data service can be quickly recovered after the call ends.
  • the terminal when the terminal leaves the LTE coverage area, receiving the fallback indication of the SRVCC, activating the first protocol stack of the terminal, camping the first protocol stack on the target CS RAT of the SRVCC, and the terminal logs off after the call ends.
  • the first protocol stack on the CS RAT activates the second protocol stack of the terminal according to the fallback indication of the received SRVCC, and the terminal periodically searches for the LTE network.
  • the voice service is restarted after the call ends. Residing on LTE and re-registering IP Multimedia subsystem to restore data services and improve user experience.
  • the acquiring unit is further configured to: obtain an indication of falling back to the CS domain; and the control system for recovering the data service by the Vo-LTE terminal, further comprising: a logout unit, configured to cancel the IP multimedia subsystem.
  • the IP multimedia subsystem when the terminal leaves the LTE coverage area, the IP multimedia subsystem is deregistered by obtaining the indication of falling back to the CS domain, the continuity of the voice service is maintained, and the load memory of the Vo-LTE terminal is also effectively reduced.
  • the terminal when the terminal leaves the LTE coverage area, the terminal falls back to the CS domain through the first protocol stack, and selects the target CS domain in the CS domain to camp, ensuring continuity of the voice service, and simultaneously deregistering the IP multimedia subsystem.
  • the terminal enters the LTE coverage area, after determining that the voice service ends, it can ensure that the IP multimedia subsystem is re-registered immediately, thereby quickly completing the data service recovery process of the Vo-LTE terminal.
  • the method further includes: a control unit, configured to control the Vo-LTE terminal to fall back to the CS domain by using the first protocol stack; and a selecting unit, configured to select a target CS in the CS domain The domain is hosted to keep the voice service from proceeding; the control unit is further configured to: after the voice service ends, control the first protocol stack to leave the target CS domain; the logout unit is further used to: , the first protocol stack is logged off.
  • the target CS domain in the CS domain can be selected to be camped, thereby maintaining the voice service, and when deregistering the first on the CS domain
  • the service data can be recovered immediately.
  • control unit is further configured to: control the second protocol stack to periodically search for the LTE network; and the determining unit is further configured to: determine whether the LTE network supports the a target LTE network where the second protocol stack resides; the control unit is further configured to: when determining that the target LTE network supporting the second protocol stack resides in the LTE network, controlling the second protocol stack The target LTE network is configured to be registered; the determining unit is further configured to: determine whether the second protocol stack has signaling interaction with the target LTE network; and configured to determine the second protocol stack and the target When the signaling interaction occurs in the LTE network, determining whether to deregister the first protocol stack; the control system for restoring the data service of the Vo-LTE terminal further includes: a registration unit, configured to determine, according to the determination result, whether to re-register the IP multimedia Subsystem to recover the data service.
  • the LTE network when searching for the target LTE network according to the second protocol stack timing, supports the target LTE network where the second protocol stack resides, and controls the target LTE network where the second protocol stack resides to register, and the second protocol The stack interacts with the target LTE network, and the second protocol stack resides in the target LTE network, so that the data service recovery process of the Vo-LTE terminal can be completed.
  • the Vo-LTE terminal can also be efficiently implemented through the LTE network.
  • the voice service so the logout of the first protocol stack at this time can effectively reduce the power consumption and memory usage of the terminal.
  • the registration unit is further configured to re-register the first protocol stack when it is determined that the second protocol stack has a signaling interaction with the target LTE network and the first protocol stack has been logged off.
  • IP Multimedia Subsystem IP Multimedia Subsystem
  • the Vo can be completed.
  • the Vo-LTE terminal can complete an efficient voice service through the LTE network, thereby improving the user experience.
  • the above technical solution can ensure that the Vo-LTE terminal can restore the data service of the LTE network as soon as possible after the SRVCC is dropped to the CS RAT, and the user experience can be improved as soon as possible after the completion of the high-quality voice service.
  • FIG. 1 is a schematic flow chart showing a method of controlling a Vo-LTE terminal to recover data traffic according to an embodiment of the present invention
  • FIG. 2 shows a schematic block diagram of a control system for a Vo-LTE terminal to recover data traffic according to an embodiment of the present invention
  • FIG. 3 shows a hardware block diagram of a Vo-LTE terminal in accordance with an embodiment of the present invention
  • FIG. 4 is a specific flowchart of a method for controlling a data service of a Vo-LTE terminal to recover data according to an embodiment of the present invention
  • FIG. 5 shows a schematic block diagram of a terminal in accordance with an embodiment of the present invention.
  • FIG. 1 shows a schematic flow chart of a control method for a Vo-LTE terminal to recover data traffic according to an embodiment of the present invention.
  • a method for controlling a data service of a Vo-LTE terminal includes a first protocol stack and a second protocol stack, and the Vo-LTE terminal supports a dual mode single
  • the voice call continuity scheme includes: Step 102: In the process of performing voice service in the Vo-LTE terminal, determining whether to leave the LTE network; Step 104, when determining to leave the LTE network, acquiring a fall of the SRVCC solution Instructing, in step 106, the first protocol stack of the Vo-LTE terminal is activated to maintain voice service according to the fallback indication of the SRVCC scheme; and step 108, the Vo-LTE terminal is activated according to the fallback indication of the SRVCC scheme
  • the second protocol stack is used to implement the return of the LTE network to complete the process of restoring data services.
  • the first protocol stack and the second protocol stack are set in the terminal, so that the terminal can complete the return of the LTE network through the second protocol stack while the voice service is continuous, so as to be fast after the voice service ends.
  • the IP multimedia subsystem is registered, so that the terminal can quickly recover data services.
  • the IP multimedia subsystem can be used to implement efficient voice services.
  • the terminal In the process of performing voice service transmission by the Vo-LTE terminal, if it is determined that the LTE network is disconnected from the LTE network, since the Vo-LTE terminal includes the first protocol stack and the second protocol stack, the terminal is activated by acquiring the fallback indication of the SRVCC scheme.
  • a protocol stack can effectively maintain the voice service and activate the second protocol stack of the terminal according to the fallback indication of the SRVCC scheme.
  • the LTE network can be relocated, and the data service can be quickly recovered after the call ends.
  • the terminal when the terminal leaves the LTE coverage area, receiving the fallback indication of the SRVCC, deregistering the IP multimedia subsystem, simultaneously activating the first protocol stack of the terminal, and camping the first protocol stack on the target CS RAT of the SRVCC, the terminal is After the call ends, the first protocol stack residing on the CS RAT is logged off, and the second protocol stack of the terminal is activated according to the fallback indication of the received SRVCC, and the terminal periodically searches for the LTE network. When the terminal enters the LTE coverage area, the call ends. The voice service re-residents on LTE and re-register the IP multimedia subsystem to restore data services and improve user experience.
  • obtaining the fallback indication of the SRVCC scheme includes the following specific steps: acquiring an indication of falling back to the CS domain; and deregistering the IP multimedia subsystem.
  • the IP multimedia subsystem when the terminal leaves the LTE coverage area, the IP multimedia subsystem is deregistered by obtaining the indication of falling back to the CS domain, the continuity of the voice service is maintained, and the load memory of the Vo-LTE terminal is also effectively reduced.
  • the terminal when the terminal leaves the LTE coverage area, the terminal falls back to the CS domain through the first protocol stack, and selects the target CS domain in the CS domain to camp, ensuring continuity of the voice service, and simultaneously deregistering the IP multimedia subsystem.
  • the terminal enters the LTE coverage area, after determining that the voice service ends, it can ensure that the IP multimedia subsystem is re-registered immediately, thereby quickly completing the data service recovery process of the Vo-LTE terminal.
  • the first protocol stack of the Vo-LTE terminal is activated to maintain a voice service, and the following specific steps are included: controlling the Vo-LTE terminal to fall back to the CS domain through the first protocol stack; Selecting a target CS domain in the CS domain to camp to maintain the voice service; after the voice service ends, controlling the first protocol stack to leave the target CS domain; and deregistering the first protocol Stack.
  • the target CS domain in the CS domain can be selected to be camped, thereby maintaining the voice service, and when deregistering the first on the CS domain
  • the service data can be recovered immediately.
  • the second protocol stack of the Vo-LTE terminal is activated to implement LTE network backhaul, and the following specific steps are included: controlling the second protocol stack to periodically search the LTE network; determining the Whether there is a target LTE network supporting the second protocol stack camping in the LTE network; when determining that the target LTE network supporting the second protocol stack camping exists in the LTE network, controlling the second protocol stack is Determining whether the second protocol stack is in signaling interaction with the target LTE network, and determining whether to log off when determining that the second protocol stack is in signaling interaction with the target LTE network. Determining, according to the determination result, whether to re-register the IP multimedia subsystem to recover the data service.
  • the LTE network when searching for the target LTE network according to the second protocol stack timing, supports the target LTE network where the second protocol stack resides, and controls the target LTE network where the second protocol stack resides to register, and the second protocol The stack interacts with the target LTE network, and the second protocol stack resides.
  • the data service recovery process of the Vo-LTE terminal can be completed.
  • the Vo-LTE terminal can also complete an efficient voice service through the LTE network, so that the first protocol stack can be effectively deleted at this time. Power consumption and memory footprint.
  • determining, according to the determination result, whether to re-register the IP multimedia subsystem to recover data services including the following specific steps: determining that the second protocol stack is in signaling interaction with the target LTE network And when the first protocol stack has been logged out, the IP multimedia subsystem is re-registered.
  • the Vo can be completed.
  • the Vo-LTE terminal can complete an efficient voice service through the LTE network, thereby improving the user experience.
  • FIG. 2 shows a block diagram of a control system for a Vo-LTE terminal to recover data traffic in accordance with an embodiment of the present invention.
  • a control system for restoring data services of a Vo-LTE terminal includes a first protocol stack and a second protocol stack, and the Vo-LTE terminal supports dual mode
  • the single-standby voice call continuity scheme includes: a determining unit 202, configured to determine whether to leave the LTE network during the voice service of the Vo-LTE terminal, and an obtaining unit 204, configured to determine that the detachment is The LTE network obtains a fallback indication of the SRVCC scheme; the activation unit 206 is configured to activate the first protocol stack of the Vo-LTE terminal to maintain voice service according to the fallback indication of the SRVCC scheme; The fallback indication of the SRVCC scheme is activated to activate the second protocol stack of the Vo-LTE terminal to implement the return of the LTE network to complete the process of restoring data services by the Vo-LTE terminal.
  • SRVCC scheme includes: a determining unit 202, configured to determine whether to leave the LTE network during the voice service of the Vo-LTE terminal, and an
  • the first protocol stack and the second protocol stack are set in the terminal, so that the terminal can complete the return of the LTE network through the second protocol stack while the voice service is continuous, so as to be fast after the voice service ends.
  • the IP multimedia subsystem is registered, so that the terminal can quickly recover data services.
  • the IP multimedia subsystem can be used to implement efficient voice services.
  • the terminal In the process of performing voice service transmission by the Vo-LTE terminal, if it is determined that the LTE network is disconnected from the LTE network, since the Vo-LTE terminal includes the first protocol stack and the second protocol stack, the terminal is activated by acquiring the fallback indication of the SRVCC scheme.
  • a protocol stack which can effectively maintain the voice service, and activate the second protocol stack of the terminal according to the fallback indication of the SRVCC scheme, thus implementing the LTE network Back to the station, you can quickly restore data services after the call ends.
  • the terminal when the terminal leaves the LTE coverage area, receiving the fallback indication of the SRVCC, deregistering the IP multimedia subsystem, simultaneously activating the first protocol stack of the terminal, and camping the first protocol stack on the target CS RAT of the SRVCC, the terminal is After the call ends, the first protocol stack residing on the CS RAT is logged off, and the second protocol stack of the terminal is activated according to the fallback indication of the received SRVCC, and the terminal periodically searches for the LTE network. When the terminal enters the LTE coverage area, the call ends. The voice service re-residents on LTE and re-register the IP multimedia subsystem to restore data services and improve user experience.
  • the obtaining unit 204 is further configured to: obtain an indication of falling back to the CS domain; the control system of the Vo-LTE terminal recovering the data service, further includes: a logout unit 208, configured to cancel the IP multimedia sub system.
  • the IP multimedia subsystem when the terminal leaves the LTE coverage area, the IP multimedia subsystem is deregistered by obtaining the indication of falling back to the CS domain, the continuity of the voice service is maintained, and the load memory of the Vo-LTE terminal is also effectively reduced.
  • the terminal when the terminal leaves the LTE coverage area, the terminal falls back to the CS domain through the first protocol stack, and selects the target CS domain in the CS domain to camp, ensuring continuity of the voice service, and simultaneously deregistering the IP multimedia subsystem.
  • the terminal enters the LTE coverage area, after determining that the voice service ends, it can ensure that the IP multimedia subsystem is re-registered immediately, thereby quickly completing the data service recovery process of the Vo-LTE terminal.
  • the method further includes: a control unit 210, configured to control the Vo-LTE terminal to fall back to the CS domain by using the first protocol stack; and a selecting unit 212, configured to select the CS domain
  • the target CS domain is camped to maintain the voice service;
  • the control unit 210 is further configured to control the first protocol stack to leave the target CS domain after the voice service ends; 208 is further configured to log out the first protocol stack.
  • the target CS domain in the CS domain can be selected to be camped, thereby maintaining the voice service, and when deregistering the first on the CS domain
  • the service data can be recovered immediately.
  • control unit 210 is further configured to: control the second protocol stack to periodically search for the LTE network; and the determining unit 202 is further configured to: determine whether there is support in the LTE network.
  • the control system of the Vo-LTE terminal recovers the data service, further includes: a registration unit 214, configured to determine, according to the determination result, whether to re-register the IP multimedia subsystem to recover the data service.
  • the LTE network when searching for the target LTE network according to the second protocol stack timing, supports the target LTE network where the second protocol stack resides, and controls the target LTE network where the second protocol stack resides to register, and the second protocol The stack interacts with the target LTE network, and the second protocol stack resides in the target LTE network, so that the data service recovery process of the Vo-LTE terminal can be completed.
  • the Vo-LTE terminal can also be efficiently implemented through the LTE network.
  • the voice service so the logout of the first protocol stack at this time can effectively reduce the power consumption and memory usage of the terminal.
  • the registration unit 214 is further configured to: re-register the second protocol stack when it is determined that the second protocol stack has a signaling interaction with the target LTE network and the first protocol stack has been logged off.
  • the IP Multimedia Subsystem is further configured to: re-register the second protocol stack when it is determined that the second protocol stack has a signaling interaction with the target LTE network and the first protocol stack has been logged off.
  • the Vo can be completed.
  • the Vo-LTE terminal can complete an efficient voice service through the LTE network, thereby improving the user experience.
  • FIG. 3 shows a schematic block diagram of a Vo-LTE terminal in accordance with an embodiment of the present invention.
  • a Vo-LTE terminal 300 includes a control system 200 for restoring data services of a Vo-LTE terminal according to any of the foregoing second embodiments.
  • the Vo-LTE terminal 300 has the same technical effects as the control system 200 for restoring data services of the Vo-LTE terminal, and details are not described herein again.
  • FIG. 4 shows a specific flowchart of a method for controlling a data service of a Vo-LTE terminal to recover data according to an embodiment of the present invention.
  • a method for controlling a data service of a Vo-LTE terminal is as follows:
  • step 402 the terminal enters a Vo-LTE call state.
  • step 404 the terminal leaves the Vo-LTE coverage area.
  • Step 406 Receive an SRVCC fallback indication. Specifically, when the terminal leaves the Vo-LTE coverage area, the terminal receives the SRVCC fallback indication, and activates the first protocol stack and the second protocol stack.
  • Step 408 The LTE network is periodically searched. Specifically, the terminal controls the second protocol stack to periodically search for the LTE network.
  • step 410 the Vo-LTE coverage area is entered.
  • Step 412 camping on the LTE network, specifically, when entering the Vo-LTE coverage area, there is a target LTE network supporting the second protocol stack camping in the LTE network, and controlling the second protocol stack to register in the target LTE network.
  • Step 414 recovering the data service, specifically, the second protocol stack performs signaling interaction with the target LTE network.
  • Step 420 The first protocol stack is inactive. Specifically, the terminal does not leave the Vo-LTE coverage area, and the first protocol stack is not activated.
  • Step 422 Activate Stack1, that is, activate the first protocol stack. Specifically, when the terminal leaves the Vo-LTE coverage area, the terminal receives the SRVCC fallback indication and activates the first protocol stack.
  • Step 424 camping on the SRVCC target CSRAT, specifically, when the first protocol stack is activated, controlling the Vo-LTE terminal to fall back to the CS domain through the first protocol stack, selecting the target CS domain in the CS domain to camp, and maintaining the voice. The conduct of the business.
  • step 426 the call is continued.
  • step 428 the call ends.
  • step 430 the CS is detached. Specifically, the Vo-LTE terminal detaches from the CS domain through the first protocol stack.
  • Step 432 Deacitve Stack 1, that is, the first protocol stack is logged off. Specifically, after the terminal controls the first protocol stack to leave the target CS domain, the first protocol stack is logged off.
  • Step 416 re-joining and attaching to the LTE network. Specifically, when the terminal enters the LTE network, the second protocol stack performs signaling interaction with the target LTE network, and after the call ends, the first protocol stack is logged off and re-established on the first protocol stack. Do LTE joint attachment.
  • Step 418 re-registering the IMS service, specifically, re-registering the IMS service when it is determined that the second protocol stack domain target LTE network has a signaling interaction and the first protocol stack has been logged off.
  • the terminal runs back to the CS RAT according to the SRVCC when leaving the LTE coverage area, runs the CS RAT protocol stack on the stack1, and continues to search for LTE on the stack2.
  • the network re-registers the IMS after entering the LTE coverage area after the LTE, such as voice service, has ended.
  • FIG. 5 shows a schematic block diagram of a terminal according to an embodiment of the present invention.
  • the terminal 5 may include at least one processor 51, such as a CPU, at least one communication bus 52 and a memory 53, and a communication bus 52. Used to implement connection communication between these components; the memory 53 may be a high speed RAM memory or a non-volatile memory such as at least one disk memory.
  • a set of program codes is stored in the memory 53, and the processor 51 is configured to call the program code stored in the memory 53 for performing the following operations:
  • the second protocol stack of the Vo-LTE terminal is activated to implement the return of the LTE network to complete the process of restoring data services.
  • the processor 51 obtains the fallback indication of the SRVCC solution, and includes the following specific steps:
  • the processor 51 activates the first protocol stack of the Vo-LTE terminal to maintain voice services, including the following specific steps:
  • the first protocol stack is deregistered.
  • the processor 51 activates the second protocol stack of the Vo-LTE terminal to implement LTE network backhaul, including the following specific steps:
  • the processor 51 determines, according to the determination result, whether to re-register the IP multimedia subsystem to recover the data service, including the following specific steps:
  • the IP multimedia subsystem is re-registered when it is determined that the second protocol stack has signaling interaction with the target LTE network and the first protocol stack has been logged out.
  • the terminal By setting the first protocol stack and the second protocol stack in the terminal, the terminal ensures that the terminal is completed through the second protocol stack while the voice service is continuous.
  • the LTE network is relocated so that the registration of the IP multimedia subsystem can be completed quickly after the end of the voice service, thereby enabling the terminal to quickly recover the data service.
  • the IP multimedia subsystem can be used to implement an efficient voice service.

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Abstract

本发明提供了一种Vo-LTE终端恢复数据业务的控制方法、系统和终端，所述控制方法包括：在所述Vo-LTE终端进行语音业务过程中，判断是否脱离LTE网络；在判定脱离所述LTE网络时，获取所述SRVCC方案的回落指示；根据所述SRVCC方案的回落指示，激活所述Vo-LTE终端的第一协议栈以保持语音业务；根据所述SRVCC方案的回落指示，激活所述Vo-LTE终端的第二协议栈以实现所述LTE网络的回驻，以完成恢复数据业务的过程。通过本发明的技术方案，可以保证Vo-LTE终端在SRVCC回落到CS RAT后，在保证语音业务质量的同时可以尽快恢复LTE网络的数据业务，提升用户的使用体验。

Description

Vo-LTE终端恢复数据业务的控制方法、系统和终端
本申请要求于2015年03月05日提交中国专利局，申请号为201510098385.4、发明名称为“Vo-LTE终端恢复数据业务的控制方法、系统和终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，具体而言，涉及一种Vo-LTE终端恢复数据业务的控制方法、一种Vo-LTE终端恢复数据业务的控制系统和一种Vo-LTE终端。
背景技术
移动通信进入LTE(Long Term Evolution，3GPP长期演进)时代，Vo-LTE(Voice over LTE，基于LTE的语音)即将替代传统的电路域通话成为4G时代的语音解决方案，但在Vo-LTE部署初期覆盖率不全的情况下，需要SRVCC(Single Radio Voice Call Continuity，Vo-LTE语音业务连续性方案)来保证终端在支持Vo-LTE区域和非Vo-LTE区域之间移动时的语音连续性。目前的SRVCC技术方案只支持从IMS域回落到CS(Circuit Switched，电路交换，对应于语音、短信以及补充业务)域而并不支持从CS域返回IMS域，有如下用户体验缺陷：
1.如果运营商使用的SRVCC目标CS RAT(Radio Access Technology，无线接入技术)支持CS(Circuit Switched，电路交换，对应于语音、短信以及补充业务)/PS(Packet Switched，分组交换，对应于数字业务)并发，那么终端即使进入LTE覆盖区，在通话结束前也无法享受LTE的高速数据服务。
2.某些运营商使用的CS RAT(如GSM)不支持PSCS业务并发，这就意味着SRVCC回落后必须中断PS业务，即使终端又回到了支持LTE的区域，也只能等到通话结束再回到LTE恢复数据业务。
因此，如何保证Vo-LTE终端在获得高质量语音业务的同时可以尽快恢复LTE网络的数据业务成为亟待解决的技术问题。
发明内容
本发明正是基于上述技术问题至少之一，提出了一种新的Vo-LTE终端恢复数据业务的控制方案，在保证语音业务质量的同时可以尽快恢复LTE网络的数据业务，提高用户的使用体验体验。
有鉴于此，本发明提出了一种Vo-LTE终端恢复数据业务的控制方法，所述Vo-LTE终端包括第一协议栈和第二协议栈，所述Vo-LTE终端支持双模单待语音呼叫连续性方案，包括：在所述Vo-LTE终端进行语音业务过程中，判断是否脱离LTE网络；在判定脱离所述LTE网络时，获取所述SRVCC方案的回落指示；根据所述SRVCC方案的回落指示，激活所述Vo-LTE终端的第一协议栈以保持语音业务；根据所述SRVCC方案的回落指示，激活所述Vo-LTE终端的第二协议栈以实现所述LTE网络的回驻，以完成恢复数据业务的过程。
在该技术方案中，通过在终端中设置第一协议栈和第二协议栈，保证终端在语音业务连续的同时，通过第二协议栈完成LTE网络的回驻，以便于在语音业务结束后快速完成IP多媒体子系统的注册，进而使得终端快速恢复数据业务，另外，还可以利用IP多媒体子系统实现高效的语音业务。
其中，在Vo-LTE终端进行语音业务传输过程中，若判定脱离LTE网络时，由于Vo-LTE终端包含第一协议栈和第二协议栈，则通过获取SRVCC方案的回落指示来激活终端的第一协议栈，这样可以有效的保持语音业务，并根据SRVCC方案的回落指示来激活终端的第二协议栈，这样，实现了LTE网络的回驻，可以在通话结束后快速恢复数据业务。
具体地，当终端脱离LTE覆盖区时，接收到SRVCC的回落指示，注销IP多媒体子系统，同时激活终端的第一协议栈，将第一协议栈驻留到SRVCC的目标CS RAT上，终端当通话结束后，注销驻留在CS RAT上的第一协议栈，根据接收到SRVCC的回落指示来激活终端的第二协议栈，同时终端定时搜索LTE网络，当终端进入LTE覆盖区时，通话结束后的语音业务重新驻留到LTE上，并重新注册IP多媒体子系统，实现恢复数据业务，提高用户体验。
在上述技术方案中，优选地，获取所述SRVCC方案的回落指示，包括以下具体步骤：获取回落至CS域的指示；注销IP多媒体子系统。
在该技术方案中，当终端脱离LTE覆盖区时，通过获取回落至CS域的指示，注销IP多媒体子系统，保持了语音业务的连续性，也有效减小了Vo-LTE 终端的负载内存。
具体地，当终端脱离LTE覆盖区时，终端通过第一协议栈回落至CS域，并选择CS域中的目标CS域进行驻留，确保语音业务的连续，同时，注销IP多媒体子系统，这样，当终端进入LTE覆盖区时，在判定语音业务结束后可以确保立即实现IP多媒体子系统的重新注册，进而快速完成Vo-LTE终端的数据业务的恢复过程。
在上述技术方案中，优选地，激活所述Vo-LTE终端的第一协议栈以保持语音业务，包括以下具体步骤：控制所述Vo-LTE终端通过所述第一协议栈回落至CS域；选择所述CS域中的目标CS域进行驻留以保持所述语音业务的进行；在所述语音业务结束后，控制所述第一协议栈脱离所述目标CS域；注销所述第一协议栈。
在该技术方案中，当Vo-LTE终端通过第一协议栈回落至CS域时，可以选择CS域中的目标CS域进行驻留，进而保持语音业务的进行，当注销CS域上的第一协议栈时，等待语音业务结束后，如Vo-LTE终端回驻LTE网络，则可以立即实现业务数据的恢复。
在上述技术方案中，优选地，激活所述Vo-LTE终端的第二协议栈以实现LTE网络回驻，包括以下具体步骤：控制所述第二协议栈定时搜索所述LTE网络；判断所述LTE网络中是否存在支持所述第二协议栈驻留的目标LTE网络；在判定所述LTE网络中存在支持所述第二协议栈驻留的目标LTE网络时，控制所述第二协议栈在所述目标LTE网络进行注册；判断所述第二协议栈是否与所述目标LTE网络发生信令交互；在判定所述第二协议栈与所述目标LTE网络发生信令交互时，判断是否注销所述第一协议栈；根据判断结果确定是否重新注册所述IP多媒体子系统以恢复所述数据业务。
在该技术方案中，根据第二协议栈定时搜索到目标LTE网络时，LTE网络支持第二协议栈驻留的目标LTE网络，控制第二协议栈驻留的目标LTE网络进行注册，第二协议栈与目标LTE网络发生信令交互，则第二协议栈驻留在目标LTE网络中，即可完成Vo-LTE终端的数据业务的恢复过程，另外，Vo-LTE终端还可以通过LTE网络完成高效的语音业务，所以此时注销第一协议栈可以有效减小终端的功耗和内存占用。
在上述技术方案中，优选地，根据判断结果确定是否重新注册所述IP多 媒体子系统以恢复数据业务，包括以下具体步骤：在判定所述第二协议栈与所述目标LTE网络发生信令交互且已注销所述第一协议栈时，重新注册所述IP多媒体子系统。
在该技术方案中，通过在第二协议栈与LTE网络发生信令交互且已注销第一协议栈，重新注册IP多媒体子系统，第二协议栈驻留在目标LTE网络中，即可完成Vo-LTE终端的数据业务的恢复过程，另外，Vo-LTE终端可以通过LTE网络完成高效的语音业务，提升了用户体验。
根据本发明的另一方面，还提出了一种Vo-LTE终端恢复数据业务的控制系统，所述Vo-LTE终端包括第一协议栈和第二协议栈，所述Vo-LTE终端支持双模单待语音呼叫连续性方案，包括：判断单元，用于在所述Vo-LTE终端进行语音业务过程中，判断是否脱离LTE网络；获取单元，用于在判定脱离所述LTE网络时，获取所述SRVCC方案的回落指示；激活单元，用于根据所述SRVCC方案的回落指示，激活所述Vo-LTE终端的第一协议栈以保持语音业务；以及用于根据所述SRVCC方案的回落指示，激活所述Vo-LTE终端的第二协议栈以实现所述LTE网络的回驻，以完成Vo-LTE终端恢复数据业务的过程。
在该技术方案中，通过在终端中设置第一协议栈和第二协议栈，保证终端在语音业务连续的同时，通过第二协议栈完成LTE网络的回驻，以便于在语音业务结束后快速完成IP多媒体子系统的注册，进而使得终端快速恢复数据业务，另外，还可以利用IP多媒体子系统实现高效的语音业务。
其中，在Vo-LTE终端进行语音业务传输过程中，若判定脱离LTE网络时，由于Vo-LTE终端包含第一协议栈和第二协议栈，则通过获取SRVCC方案的回落指示来激活终端的第一协议栈，这样可以有效的保持语音业务，并根据SRVCC方案的回落指示来激活终端的第二协议栈，这样，实现了LTE网络的回驻，可以在通话结束后快速恢复数据业务。
具体地，当终端脱离LTE覆盖区时，接收到SRVCC的回落指示，激活终端的第一协议栈，将第一协议栈驻留到SRVCC的目标CS RAT上，终端当通话结束后，注销驻留在CS RAT上的第一协议栈，根据接收到SRVCC的回落指示来激活终端的第二协议栈，同时终端定时搜索LTE网络，当终端进入Vo-LTE覆盖区时，通话结束后的语音业务重新驻留到LTE上，并重新注册IP 多媒体子系统，实现恢复数据业务，提高用户体验。
在上述技术方案中，优选地，所述获取单元还用于，获取回落至CS域的指示；Vo-LTE终端恢复数据业务的控制系统，还包括：注销单元，用于注销IP多媒体子系统。
在该技术方案中，当终端脱离LTE覆盖区时，通过获取回落至CS域的指示，注销IP多媒体子系统，保持了语音业务的连续性，也有效减小了Vo-LTE终端的负载内存。
具体地，当终端脱离LTE覆盖区时，终端通过第一协议栈回落至CS域，并选择CS域中的目标CS域进行驻留，确保语音业务的连续，同时，注销IP多媒体子系统，这样，当终端进入LTE覆盖区时，在判定语音业务结束后可以确保立即实现IP多媒体子系统的重新注册，进而快速完成Vo-LTE终端的数据业务的恢复过程。
在上述技术方案中，优选地，还包括：控制单元，用于控制所述Vo-LTE终端通过所述第一协议栈回落至CS域；选择单元，用于选择所述CS域中的目标CS域进行驻留以保持所述语音业务的进行；所述控制单元还用于，在所述语音业务结束后，控制所述第一协议栈脱离所述目标CS域；所述注销单元还用于，注销所述第一协议栈。
在该技术方案中，当Vo-LTE终端通过第一协议栈回落至CS域时，可以选择CS域中的目标CS域进行驻留，进而保持语音业务的进行，当注销CS域上的第一协议栈时，等待语音业务结束后，如Vo-LTE终端回驻LTE网络，则可以立即实现业务数据的恢复。
在上述技术方案中，优选地，所述控制单元还用于，控制所述第二协议栈定时搜索所述LTE网络；所述判断单元还用于，判断所述LTE网络中是否存在支持所述第二协议栈驻留的目标LTE网络；所述控制单元还用于，在判定所述LTE网络中存在支持所述第二协议栈驻留的目标LTE网络时，控制所述第二协议栈在所述目标LTE网络进行注册；所述判断单元还用于，判断所述第二协议栈是否与所述目标LTE网络发生信令交互；以及用于在判定所述第二协议栈与所述目标LTE网络发生信令交互时，判断是否注销所述第一协议栈；所述Vo-LTE终端恢复数据业务的控制系统，还包括：注册单元，用于根据判断结果确定是否重新注册所述IP多媒体子系统以恢复所述数据业务。
在该技术方案中，根据第二协议栈定时搜索到目标LTE网络时，LTE网络支持第二协议栈驻留的目标LTE网络，控制第二协议栈驻留的目标LTE网络进行注册，第二协议栈与目标LTE网络发生信令交互，则第二协议栈驻留在目标LTE网络中，即可完成Vo-LTE终端的数据业务的恢复过程，另外，Vo-LTE终端还可以通过LTE网络完成高效的语音业务，所以此时注销第一协议栈可以有效减小终端的功耗和内存占用。
在上述技术方案中，优选地，所述注册单元还用于，在判定所述第二协议栈与所述目标LTE网络发生信令交互且已注销所述第一协议栈时，重新注册所述IP多媒体子系统。
在该技术方案中，通过在第二协议栈与LTE网络发生信令交互且已注销第一协议栈，重新注册IP多媒体子系统，第二协议栈驻留在目标LTE网络中，即可完成Vo-LTE终端的数据业务的恢复过程，另外，Vo-LTE终端可以通过LTE网络完成高效的语音业务，提升了用户体验。
通过以上技术方案，可以保证Vo-LTE终端在SRVCC回落到CS RAT后，在完成高质量的语音业务后可以尽快恢复LTE网络的数据业务，提升用户体验。
附图说明
图1示出了根据本发明的实施例的Vo-LTE终端恢复数据业务的控制方法的示意流程图；
图2示出了根据本发明的实施例的Vo-LTE终端恢复数据业务的控制系统的示意框图；
图3示出了根据本发明的实施例的Vo-LTE终端的硬件框图；
图4示出了根据本发明的实施例的Vo-LTE终端恢复数据业务的控制方法的具体流程图；
图5示出了根据本发明的实施例的终端的示意框图。
具体实施方式
为了能够更清楚地理解本发明的上述目的、特征和优点，下面结合附图和 具体实施方式对本发明进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是，本发明还可以采用其他不同于在此描述的其他方式来实施，因此，本发明的保护范围并不受下面公开的具体实施例的限制。
图1示出了根据本发明的实施例的Vo-LTE终端恢复数据业务的控制方法的示意流程图。
如图1所示根据本发明的实施例的Vo-LTE终端恢复数据业务的控制方法，所述Vo-LTE终端包括第一协议栈和第二协议栈，所述Vo-LTE终端支持双模单待语音呼叫连续性方案，包括：步骤102，在所述Vo-LTE终端进行语音业务过程中，判断是否脱离LTE网络；步骤104，在判定脱离所述LTE网络时，获取所述SRVCC方案的回落指示；步骤106，根据所述SRVCC方案的回落指示，激活所述Vo-LTE终端的第一协议栈以保持语音业务；步骤108，根据所述SRVCC方案的回落指示，激活所述Vo-LTE终端的第二协议栈以实现所述LTE网络的回驻，以完成恢复数据业务的过程。
在该技术方案中，通过在终端中设置第一协议栈和第二协议栈，保证终端在语音业务连续的同时，通过第二协议栈完成LTE网络的回驻，以便于在语音业务结束后快速完成IP多媒体子系统的注册，进而使得终端快速恢复数据业务，另外，还可以利用IP多媒体子系统实现高效的语音业务。
其中，在Vo-LTE终端进行语音业务传输过程中，若判定脱离LTE网络时，由于Vo-LTE终端包含第一协议栈和第二协议栈，则通过获取SRVCC方案的回落指示来激活终端的第一协议栈，这样可以有效的保持语音业务，并根据SRVCC方案的回落指示来激活终端的第二协议栈，这样，实现了LTE网络的回驻，可以在通话结束后快速恢复数据业务。
具体地，当终端脱离LTE覆盖区时，接收到SRVCC的回落指示，注销IP多媒体子系统，同时激活终端的第一协议栈，将第一协议栈驻留到SRVCC的目标CS RAT上，终端当通话结束后，注销驻留在CS RAT上的第一协议栈，根据接收到SRVCC的回落指示来激活终端的第二协议栈，同时终端定时搜索LTE网络，当终端进入LTE覆盖区时，通话结束后的语音业务重新驻留到LTE上，并重新注册IP多媒体子系统，实现恢复数据业务，提高用户体验。
在上述技术方案中，优选地，获取所述SRVCC方案的回落指示，包括以下具体步骤：获取回落至CS域的指示；注销IP多媒体子系统。
在该技术方案中，当终端脱离LTE覆盖区时，通过获取回落至CS域的指示，注销IP多媒体子系统，保持了语音业务的连续性，也有效减小了Vo-LTE终端的负载内存。
具体地，当终端脱离LTE覆盖区时，终端通过第一协议栈回落至CS域，并选择CS域中的目标CS域进行驻留，确保语音业务的连续，同时，注销IP多媒体子系统，这样，当终端进入LTE覆盖区时，在判定语音业务结束后可以确保立即实现IP多媒体子系统的重新注册，进而快速完成Vo-LTE终端的数据业务的恢复过程。
在上述技术方案中，优选地，激活所述Vo-LTE终端的第一协议栈以保持语音业务，包括以下具体步骤：控制所述Vo-LTE终端通过所述第一协议栈回落至CS域；选择所述CS域中的目标CS域进行驻留以保持所述语音业务的进行；在所述语音业务结束后，控制所述第一协议栈脱离所述目标CS域；注销所述第一协议栈。
在该技术方案中，当Vo-LTE终端通过第一协议栈回落至CS域时，可以选择CS域中的目标CS域进行驻留，进而保持语音业务的进行，当注销CS域上的第一协议栈时，等待语音业务结束后，如Vo-LTE终端回驻LTE网络，则可以立即实现业务数据的恢复。
在上述技术方案中，优选地，激活所述Vo-LTE终端的第二协议栈以实现LTE网络回驻，包括以下具体步骤：控制所述第二协议栈定时搜索所述LTE网络；判断所述LTE网络中是否存在支持所述第二协议栈驻留的目标LTE网络；在判定所述LTE网络中存在支持所述第二协议栈驻留的目标LTE网络时，控制所述第二协议栈在所述目标LTE网络进行注册；判断所述第二协议栈是否与所述目标LTE网络发生信令交互；在判定所述第二协议栈与所述目标LTE网络发生信令交互时，判断是否注销所述第一协议栈；根据判断结果确定是否重新注册所述IP多媒体子系统以恢复所述数据业务。
在该技术方案中，根据第二协议栈定时搜索到目标LTE网络时，LTE网络支持第二协议栈驻留的目标LTE网络，控制第二协议栈驻留的目标LTE网络进行注册，第二协议栈与目标LTE网络发生信令交互，则第二协议栈驻留 在目标LTE网络中，即可完成Vo-LTE终端的数据业务的恢复过程，另外，Vo-LTE终端还可以通过LTE网络完成高效的语音业务，所以此时注销第一协议栈可以有效减小终端的功耗和内存占用。
在上述技术方案中，优选地，根据判断结果确定是否重新注册所述IP多媒体子系统以恢复数据业务，包括以下具体步骤：在判定所述第二协议栈与所述目标LTE网络发生信令交互且已注销所述第一协议栈时，重新注册所述IP多媒体子系统。
在该技术方案中，通过在第二协议栈与LTE网络发生信令交互且已注销第一协议栈，重新注册IP多媒体子系统，第二协议栈驻留在目标LTE网络中，即可完成Vo-LTE终端的数据业务的恢复过程，另外，Vo-LTE终端可以通过LTE网络完成高效的语音业务，提升了用户体验。
图2示出了根据本发明的实施例的Vo-LTE终端恢复数据业务的控制系统的框图。
如图2所示，根据本发明的实施例的Vo-LTE终端恢复数据业务的控制系统，所述Vo-LTE终端包括第一协议栈和第二协议栈，所述Vo-LTE终端支持双模单待语音呼叫连续性方案(SRVCC方案)，包括：判断单元202，用于在所述Vo-LTE终端进行语音业务过程中，判断是否脱离LTE网络；获取单元204，用于在判定脱离所述LTE网络时，获取所述SRVCC方案的回落指示；激活单元206，用于根据所述SRVCC方案的回落指示，激活所述Vo-LTE终端的第一协议栈以保持语音业务；以及用于根据所述SRVCC方案的回落指示，激活所述Vo-LTE终端的第二协议栈以实现所述LTE网络的回驻，以完成Vo-LTE终端恢复数据业务的过程。
在该技术方案中，通过在终端中设置第一协议栈和第二协议栈，保证终端在语音业务连续的同时，通过第二协议栈完成LTE网络的回驻，以便于在语音业务结束后快速完成IP多媒体子系统的注册，进而使得终端快速恢复数据业务，另外，还可以利用IP多媒体子系统实现高效的语音业务。
其中，在Vo-LTE终端进行语音业务传输过程中，若判定脱离LTE网络时，由于Vo-LTE终端包含第一协议栈和第二协议栈，则通过获取SRVCC方案的回落指示来激活终端的第一协议栈，这样可以有效的保持语音业务，并根据SRVCC方案的回落指示来激活终端的第二协议栈，这样，实现了LTE网络 的回驻，可以在通话结束后快速恢复数据业务。
具体地，当终端脱离LTE覆盖区时，接收到SRVCC的回落指示，注销IP多媒体子系统，同时激活终端的第一协议栈，将第一协议栈驻留到SRVCC的目标CS RAT上，终端当通话结束后，注销驻留在CS RAT上的第一协议栈，根据接收到SRVCC的回落指示来激活终端的第二协议栈，同时终端定时搜索LTE网络，当终端进入LTE覆盖区时，通话结束后的语音业务重新驻留到LTE上，并重新注册IP多媒体子系统，实现恢复数据业务，提高用户体验。
在上述技术方案中，优选地，所述获取单元204还用于，获取回落至CS域的指示；Vo-LTE终端恢复数据业务的控制系统，还包括：注销单元208，用于注销IP多媒体子系统。
在该技术方案中，当终端脱离LTE覆盖区时，通过获取回落至CS域的指示，注销IP多媒体子系统，保持了语音业务的连续性，也有效减小了Vo-LTE终端的负载内存。
具体地，当终端脱离LTE覆盖区时，终端通过第一协议栈回落至CS域，并选择CS域中的目标CS域进行驻留，确保语音业务的连续，同时，注销IP多媒体子系统，这样，当终端进入LTE覆盖区时，在判定语音业务结束后可以确保立即实现IP多媒体子系统的重新注册，进而快速完成Vo-LTE终端的数据业务的恢复过程。
在上述技术方案中，优选地，还包括：控制单元210，用于控制所述Vo-LTE终端通过所述第一协议栈回落至CS域；选择单元212，用于选择所述CS域中的目标CS域进行驻留以保持所述语音业务的进行；所述控制单元210还用于，在所述语音业务结束后，控制所述第一协议栈脱离所述目标CS域；所述注销单元208还用于，注销所述第一协议栈。
在该技术方案中，当Vo-LTE终端通过第一协议栈回落至CS域时，可以选择CS域中的目标CS域进行驻留，进而保持语音业务的进行，当注销CS域上的第一协议栈时，等待语音业务结束后，如Vo-LTE终端回驻LTE网络，则可以立即实现业务数据的恢复。
在上述技术方案中，优选地，所述控制单元210还用于，控制所述第二协议栈定时搜索所述LTE网络；所述判断单元202还用于，判断所述LTE网络中是否存在支持所述第二协议栈驻留的目标LTE网络；所述控制单元210还 用于，在判定所述LTE网络中存在支持所述第二协议栈驻留的目标LTE网络时，控制所述第二协议栈在所述目标LTE网络进行注册；所述判断单元202还用于，判断所述第二协议栈是否与所述目标LTE网络发生信令交互；以及用于在判定所述第二协议栈与所述目标LTE网络发生信令交互时，判断是否注销所述第一协议栈；所述Vo-LTE终端恢复数据业务的控制系统，还包括：注册单元214，用于根据判断结果确定是否重新注册所述IP多媒体子系统以恢复所述数据业务。
在该技术方案中，根据第二协议栈定时搜索到目标LTE网络时，LTE网络支持第二协议栈驻留的目标LTE网络，控制第二协议栈驻留的目标LTE网络进行注册，第二协议栈与目标LTE网络发生信令交互，则第二协议栈驻留在目标LTE网络中，即可完成Vo-LTE终端的数据业务的恢复过程，另外，Vo-LTE终端还可以通过LTE网络完成高效的语音业务，所以此时注销第一协议栈可以有效减小终端的功耗和内存占用。
在上述技术方案中，优选地，所述注册单元214还用于，在判定所述第二协议栈与所述目标LTE网络发生信令交互且已注销所述第一协议栈时，重新注册所述IP多媒体子系统。
在该技术方案中，通过在第二协议栈与LTE网络发生信令交互且已注销第一协议栈，重新注册IP多媒体子系统，第二协议栈驻留在目标LTE网络中，即可完成Vo-LTE终端的数据业务的恢复过程，另外，Vo-LTE终端可以通过LTE网络完成高效的语音业务，提升了用户体验。
图3示出了根据本发明的实施例的Vo-LTE终端的示意框图。
如图3所示，根据本发明的实施例的Vo-LTE终端300，包括上述第二方面任一实施例的Vo-LTE终端恢复数据业务的控制系统200。其中，Vo-LTE终端300具有与Vo-LTE终端恢复数据业务的控制系统200相同的技术效果，在此不再赘述。
图4示出了根据本发明的实施例的Vo-LTE终端恢复数据业务的控制方法的具体流程图。
如图4所示，根据本发明的实施例的Vo-LTE终端恢复数据业务的控制方法，以下为具体步骤：
步骤402，终端进入Vo-LTE通话状态。
步骤404，终端脱离Vo-LTE覆盖区。
步骤406，接收到SRVCC回落指示，具体的，当终端脱离Vo-LTE覆盖区时，终端接收到SRVCC回落指示，激活第一协议栈和第二协议栈。
步骤408，定时搜索LTE网络，具体地，终端控制第二协议栈定时搜索LTE网络。
步骤410，进入Vo-LTE覆盖区。
步骤412，驻留到LTE网络，具体地，当终进入Vo-LTE覆盖区时，LTE网络中存在支持第二协议栈驻留的目标LTE网络，控制第二协议栈在目标LTE网络进行注册。
步骤414，恢复数据业务，具体地，第二协议栈与目标LTE网络发生信令交互。
步骤420，第一协议栈非激活状态，具体地，终端未脱离Vo-LTE覆盖区，第一协议栈没有被激活。
步骤422，激活Stack1，即激活第一协议栈，具体地，当终端脱离Vo-LTE覆盖区时，终端接收到SRVCC回落指示，激活第一协议栈。
步骤424，驻留到SRVCC目标CSRAT，具体地，当激活第一协议栈时，控制Vo-LTE终端通过第一协议栈回落至CS域，选择CS域中的目标CS域进行驻留，保持语音业务的进行。
步骤426，继续通话。
步骤428，通话结束。
步骤430，CS去附着，具体地，Vo-LTE终端通过第一协议栈脱离CS域。
步骤432，Deacitve Stack 1，即注销第一协议栈，具体地，终端控制第一协议栈脱离目标CS域后，注销第一协议栈。
步骤416，重新联合附着到LTE网络，具体的，当终端进入LTE网络时，第二协议栈与目标LTE网络发生信令交互，通话结束后注销第一协议栈，并重新在第一协议栈上做LTE联合附着。
步骤418，重新注册IMS服务，具体地，在判定第二协议栈域目标LTE网络发生信令交互且已注销第一协议栈时，重新注册IMS服务。
终端在Vo-LTE通话过程中由于脱离LTE覆盖区时根据SRVCC回落到CS RAT，在stack1上运行CS RAT的协议栈，同时在stack2上继续搜索LTE 网络，当进入LTE覆盖区后在LTE如语音业务已结束，则重新注册IMS。
图5示出了根据本发明的实施例的终端的示意框图，如图5所示，该终端5可以包括：至少一个处理器51，例如CPU，至少一个通信总线52以及存储器53；通信总线52用于实现这些组件之间的连接通信；存储器53可以是高速RAM存储器，也可以是非易失性存储器(non-volatile memory)，例如至少一个磁盘存储器。存储器53中存储一组程序代码，且处理器51用于调用存储器53中存储的程序代码，用于执行以下操作：
在所述Vo-LTE终端进行语音业务过程中，判断是否脱离LTE网络；
在判定脱离所述LTE网络时，获取所述SRVCC方案的回落指示；
根据所述SRVCC方案的回落指示，激活所述Vo-LTE终端的第一协议栈以保持语音业务；
根据所述SRVCC方案的回落指示，激活所述Vo-LTE终端的第二协议栈以实现所述LTE网络的回驻，以完成恢复数据业务的过程。
可选的，处理器51获取所述SRVCC方案的回落指示，包括以下具体步骤：
获取回落至CS域的指示；
注销IP多媒体子系统。
又可选的，处理器51激活所述Vo-LTE终端的第一协议栈以保持语音业务，包括以下具体步骤：
控制所述Vo-LTE终端通过所述第一协议栈回落至CS域；
选择所述CS域中的目标CS域进行驻留以保持所述语音业务的进行；
在所述语音业务结束后，控制所述第一协议栈脱离所述目标CS域；
注销所述第一协议栈。
另可选的，处理器51激活所述Vo-LTE终端的第二协议栈以实现LTE网络回驻，包括以下具体步骤：
控制所述第二协议栈定时搜索所述LTE网络；
判断所述LTE网络中是否存在支持所述第二协议栈驻留的目标LTE网络；
在判定所述LTE网络中存在支持所述第二协议栈驻留的目标LTE网络时，控制所述第二协议栈在所述目标LTE网络进行注册；
判断所述第二协议栈是否与所述目标LTE网络发生信令交互；
在判定所述第二协议栈与所述目标LTE网络发生信令交互时，判断是否注销所述第一协议栈；
根据判断结果确定是否重新注册所述IP多媒体子系统以恢复所述数据业务。
进一步的，处理器51根据判断结果确定是否重新注册所述IP多媒体子系统以恢复数据业务，包括以下具体步骤：
在判定所述第二协议栈与所述目标LTE网络发生信令交互且已注销所述第一协议栈时，重新注册所述IP多媒体子系统。
以上结合附图详细说明了本发明的技术方案，通过本发明的技术方案，通过在终端中设置第一协议栈和第二协议栈，保证终端在语音业务连续的同时，通过第二协议栈完成LTE网络的回驻，以便于在语音业务结束后快速完成IP多媒体子系统的注册，进而使得终端快速恢复数据业务，另外，还可以利用IP多媒体子系统实现高效的语音业务。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。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 (15)

  1. 一种Vo-LTE终端恢复数据业务的控制方法，所述Vo-LTE终端包括第一协议栈和第二协议栈，所述Vo-LTE终端支持双模单待语音呼叫连续性方案，其特征在于，包括：
    在所述Vo-LTE终端进行语音业务过程中，判断是否脱离LTE网络；
    在判定脱离所述LTE网络时，获取所述SRVCC方案的回落指示；
    根据所述SRVCC方案的回落指示，激活所述Vo-LTE终端的第一协议栈以保持语音业务；
    根据所述SRVCC方案的回落指示，激活所述Vo-LTE终端的第二协议栈以实现所述LTE网络的回驻，以完成恢复数据业务的过程。
  2. 根据权利要求1所述的Vo-LTE终端恢复数据业务的控制方法，其特征在于，获取所述SRVCC方案的回落指示，包括以下具体步骤：
    获取回落至CS域的指示；
    注销IP多媒体子系统。
  3. 根据权利要求2所述的Vo-LTE终端恢复数据业务的控制方法，其特征在于，激活所述Vo-LTE终端的第一协议栈以保持语音业务，包括以下具体步骤：
    控制所述Vo-LTE终端通过所述第一协议栈回落至CS域；
    选择所述CS域中的目标CS域进行驻留以保持所述语音业务的进行；
    在所述语音业务结束后，控制所述第一协议栈脱离所述目标CS域；
    注销所述第一协议栈。
  4. 根据权利要求3所述的Vo-LTE终端恢复数据业务的控制方法，其特征在于，激活所述Vo-LTE终端的第二协议栈以实现LTE网络回驻，包括以下具体步骤：
    控制所述第二协议栈定时搜索所述LTE网络；
    判断所述LTE网络中是否存在支持所述第二协议栈驻留的目标LTE网络；
    在判定所述LTE网络中存在支持所述第二协议栈驻留的目标LTE网络时，控制所述第二协议栈在所述目标LTE网络进行注册；
    判断所述第二协议栈是否与所述目标LTE网络发生信令交互；
    在判定所述第二协议栈与所述目标LTE网络发生信令交互时，判断是否注销所述第一协议栈；
    根据判断结果确定是否重新注册所述IP多媒体子系统以恢复所述数据业务。
  5. 根据权利要求4所述的Vo-LTE终端恢复数据业务的控制方法，其特征在于，根据判断结果确定是否重新注册所述IP多媒体子系统以恢复数据业务，包括以下具体步骤：
    在判定所述第二协议栈与所述目标LTE网络发生信令交互且已注销所述第一协议栈时，重新注册所述IP多媒体子系统。
  6. 一种Vo-LTE终端恢复数据业务的控制系统，所述Vo-LTE终端包括第一协议栈和第二协议栈，所述Vo-LTE终端支持双模单待语音呼叫连续性方案，其特征在于，包括：
    判断单元，用于在所述Vo-LTE终端进行语音业务过程中，判断是否脱离LTE网络；
    获取单元，用于在判定脱离所述LTE网络时，获取所述SRVCC方案的回落指示；
    激活单元，用于根据所述SRVCC方案的回落指示，激活所述Vo-LTE终端的第一协议栈以保持语音业务；以及
    用于根据所述SRVCC方案的回落指示，激活所述Vo-LTE终端的第二协议栈以实现所述LTE网络的回驻，以完成Vo-LTE终端恢复数据业务的过程。
  7. 根据权利要求6所述的Vo-LTE终端恢复数据业务的控制系统，其特征在于，所述获取单元还用于，获取回落至CS域的指示；
    Vo-LTE终端恢复数据业务的控制系统，还包括：
    注销单元，用于注销IP多媒体子系统。
  8. 根据权利要求7所述的Vo-LTE终端恢复数据业务的控制系统，其特征在于，还包括：
    控制单元，用于控制所述Vo-LTE终端通过所述第一协议栈回落至CS域；
    选择单元，用于选择所述CS域中的目标CS域进行驻留以保持所述语音业务的进行；
    所述控制单元还用于，在所述语音业务结束后，控制所述第一协议栈脱离 所述目标CS域；
    所述注销单元还用于，注销所述第一协议栈。
  9. 根据权利要求8所述的Vo-LTE终端恢复数据业务的控制系统，其特征在于，所述控制单元还用于，控制所述第二协议栈定时搜索所述LTE网络；
    所述判断单元还用于，判断所述LTE网络中是否存在支持所述第二协议栈驻留的目标LTE网络；
    所述控制单元还用于，在判定所述LTE网络中存在支持所述第二协议栈驻留的目标LTE网络时，控制所述第二协议栈在所述目标LTE网络进行注册；
    所述判断单元还用于，判断所述第二协议栈是否与所述目标LTE网络发生信令交互；以及
    用于在判定所述第二协议栈与所述目标LTE网络发生信令交互时，判断是否注销所述第一协议栈；
    所述Vo-LTE终端恢复数据业务的控制系统，还包括：
    注册单元，用于根据判断结果确定是否重新注册所述IP多媒体子系统以恢复所述数据业务。
  10. 根据权利要求9所述的Vo-LTE终端恢复数据业务的控制系统，其特征在于，所述注册单元还用于，在判定所述第二协议栈与所述目标LTE网络发生信令交互且已注销所述第一协议栈时，重新注册所述IP多媒体子系统。
  11. 一种终端，所述终端包括第一协议栈和第二协议栈，所述Vo-LTE终端支持双模单待语音呼叫连续性方案，其特征在于，所述终端包括处理器和存储器，其中，所述存储器中存储一组程序代码，且所述处理器用于调用所述存储器中存储的程序代码，用于执行以下操作：
    在所述Vo-LTE终端进行语音业务过程中，判断是否脱离LTE网络；
    在判定脱离所述LTE网络时，获取所述SRVCC方案的回落指示；
    根据所述SRVCC方案的回落指示，激活所述Vo-LTE终端的第一协议栈以保持语音业务；
    根据所述SRVCC方案的回落指示，激活所述Vo-LTE终端的第二协议栈以实现所述LTE网络的回驻，以完成恢复数据业务的过程。
  12. 根据权利要求11所述终端，其特征在于，所述处理器获取所述SRVCC方案的回落指示，包括以下具体步骤：
    获取回落至CS域的指示；
    注销IP多媒体子系统。
  13. 根据权利要求12所述终端，其特征在于，所述处理器激活所述Vo-LTE终端的第一协议栈以保持语音业务，包括以下具体步骤：
    控制所述Vo-LTE终端通过所述第一协议栈回落至CS域；
    选择所述CS域中的目标CS域进行驻留以保持所述语音业务的进行；
    在所述语音业务结束后，控制所述第一协议栈脱离所述目标CS域；
    注销所述第一协议栈。
  14. 根据权利要求13所述终端，其特征在于，所述处理器激活所述Vo-LTE终端的第二协议栈以实现LTE网络回驻，包括以下具体步骤：
    控制所述第二协议栈定时搜索所述LTE网络；
    判断所述LTE网络中是否存在支持所述第二协议栈驻留的目标LTE网络；
    在判定所述LTE网络中存在支持所述第二协议栈驻留的目标LTE网络时，控制所述第二协议栈在所述目标LTE网络进行注册；
    判断所述第二协议栈是否与所述目标LTE网络发生信令交互；
    在判定所述第二协议栈与所述目标LTE网络发生信令交互时，判断是否注销所述第一协议栈；
    根据判断结果确定是否重新注册所述IP多媒体子系统以恢复所述数据业务。
  15. 根据权利要求14所述终端，其特征在于，所述处理器根据判断结果确定是否重新注册所述IP多媒体子系统以恢复数据业务，包括以下具体步骤：
    在判定所述第二协议栈与所述目标LTE网络发生信令交互且已注销所述第一协议栈时，重新注册所述IP多媒体子系统。
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