WO2022241773A1 - 一种终端设备间的业务切换的方法及装置 - Google Patents

一种终端设备间的业务切换的方法及装置 Download PDF

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Publication number
WO2022241773A1
WO2022241773A1 PCT/CN2021/095257 CN2021095257W WO2022241773A1 WO 2022241773 A1 WO2022241773 A1 WO 2022241773A1 CN 2021095257 W CN2021095257 W CN 2021095257W WO 2022241773 A1 WO2022241773 A1 WO 2022241773A1
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Prior art keywords
terminal device
request message
service
service switching
message
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PCT/CN2021/095257
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English (en)
French (fr)
Inventor
范江胜
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Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN202180098195.6A priority Critical patent/CN117296372A/zh
Priority to PCT/CN2021/095257 priority patent/WO2022241773A1/zh
Publication of WO2022241773A1 publication Critical patent/WO2022241773A1/zh
Priority to US18/510,395 priority patent/US20240089821A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/14Reselecting a network or an air interface
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/30Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/305Handover due to radio link failure
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/18Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20Transfer of user or subscriber data
    • H04W8/205Transfer to or from user equipment or user record carrier

Definitions

  • the present application relates to the field of communication technologies, and in particular to a method and device for service switching between terminal devices.
  • Reliability is an important index to evaluate the quality of a communication system.
  • the reliability is mainly guaranteed by maintaining the data interaction link between the network device and the terminal device as much as possible.
  • This The mechanism cannot guarantee the reliability of the communication link between the network device and the terminal device when it is interrupted.
  • the reliability of the communication link is not guaranteed. It is especially important, therefore, relying solely on the communication link between a terminal device and the network device cannot guarantee the reliability after the communication link is interrupted.
  • the embodiment of the present application discloses a method and device for service switching between terminal devices, which can realize the continuity of the session or service, and improve the reliability of the session or service communication.
  • the first aspect of the embodiment of the present application discloses a method for service switching between terminal devices, including:
  • the first terminal device sends a service switching request message to the second terminal device, and the service switching request message is used to request the second terminal device to activate at least one session or service specified by the first terminal device; the service switching request message Include the identification information of the at least one session or service.
  • the second aspect of the embodiment of the present application discloses a method for service switching between terminal devices, including:
  • the second terminal device receives a service switching request message from the first terminal device, the service switching request message is used for the first terminal device to request the second terminal device to activate at least one session or service specified by the first terminal device ;
  • the service switching request message includes identification information of the at least one session or service;
  • the second terminal device sends a service request message to the network device, where the service request message includes identification information of the session or service accepted in the service switching request message.
  • the third aspect of the embodiment of the present application discloses a method for service switching between terminal devices, including:
  • the network device receives the service request message from the second terminal device, where the service request message includes the identification information of the session or service accepted in the service switching request message, and the service switching request message is sent by the first terminal device to the For the second terminal device, the service switching request message is used for the first terminal device to request the second terminal device to activate at least one session or service specified by the first terminal device; the service switching request message includes Identification information of the at least one session or service.
  • the fourth aspect of the embodiment of the present application discloses a terminal device, which has some or all functions to realize the behavior of the first terminal device in the above method, for example, the functions of the first terminal device may have part or all of the functions in this application.
  • the functions in the embodiments may also have the functions of independently implementing any one of the embodiments in the present application.
  • the functions described above may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the first terminal device includes a processing unit, and the processing unit is configured to support the terminal to perform corresponding functions in the foregoing method.
  • the first terminal device may further include a communication unit configured to support communication between the first terminal device and other units or devices.
  • the first terminal device may further include a storage unit, which is used to be coupled with the processing unit, and stores necessary program instructions and data of the first terminal device.
  • the processing unit may be a processor
  • the communication unit may be a transceiver
  • the storage unit may be a memory.
  • the fifth aspect of the embodiment of the present application discloses a terminal device, which has some or all functions to realize the terminal behavior in the above method, for example, the functions of the second terminal device may have some or all of the function, and may also have the function of independently implementing any one of the embodiments in the present application.
  • the functions described above may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the second terminal device includes a processing unit, and the processing unit is configured to support the terminal to perform corresponding functions in the foregoing method.
  • the second terminal device may further include a communication unit configured to support communication between the second terminal device and other units or devices.
  • the second terminal device may further include a storage unit, which is used to be coupled with the processing unit, and stores necessary program instructions and data of the second terminal device.
  • the processing unit may be a processor
  • the communication unit may be a transceiver
  • the storage unit may be a memory.
  • the sixth aspect of the embodiment of the present application discloses a network device, which has some or all functions to realize the behavior of the network device in the above method, for example, the function of the network device may have some or all of the functions in the embodiments of this application. function, and may also have the function of independently implementing any one of the embodiments in the present application.
  • the functions described above may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the network device includes a processing unit configured to support the network device to perform corresponding functions in the foregoing method.
  • the network device may further include a communication unit for supporting communication between the network device and other units or devices.
  • the network device may further include a storage unit, which is used to be coupled with the processing unit, and stores necessary program instructions and data of the network device.
  • the processing unit may be a processor
  • the communication unit may be a transceiver
  • the storage unit may be a memory.
  • the continuity of the session or service can be realized, and the reliability of the session or service communication can be improved.
  • FIG. 1 is a schematic structural diagram of a communication system 100 provided in an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a method for service switching between terminal devices provided in an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of a terminal device provided in an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a network device provided in an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a terminal device provided in an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of a communication system 100 provided by an embodiment of the present application.
  • the communication system 100 includes a first terminal device 101 , a second terminal device 102 and a network device 103 . Communication between the network device 103 and the first terminal device 101 and between the network device 103 and the second terminal device 102 may be through other devices or network elements.
  • the method in the embodiment of the present application may be applied to the communication system 100 shown in FIG. 1 .
  • the network device 103 may be a base station (base station), an evolved base station (evolved NodeB, eNodeB), a transmission reception point (transmission reception point, TRP), or a next generation base station (next generation NodeB, gNB) in a 5G mobile communication system , the base station in the future mobile communication system or the access node in the WiFi system, etc.; it can also be a module or unit that completes some functions of the base station, for example, it can be a centralized unit (central unit, CU) or a distributed unit (distributed unit, DU).
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the network device.
  • the network device 103 may also include a core network device, and the core network device includes, for example, an access and mobility management function (access and mobility management function, AMF), a user plane function (user plane function, UPF) or a session management function (session management function, SMF) )Wait.
  • AMF access and mobility management function
  • UPF user plane function
  • SMF session management function
  • the first terminal device 101 and the second terminal device 102 may also be called terminals, user equipment (user equipment, UE), mobile stations, mobile terminals, and so on. It can be mobile phone, tablet computer, computer with wireless transceiver function, virtual reality terminal equipment, augmented reality terminal equipment, wireless terminal in industrial control, vehicle wireless terminal, wireless terminal in remote surgery, wireless terminal in smart grid, transportation Wireless terminals in security, wireless terminals in smart cities, wireless terminals in smart homes, etc.
  • the vehicle-mounted wireless terminal refers to a terminal device placed or installed in a vehicle, and may also be called an on-board unit (OBU). It can also be a wearable device. Wearable devices can also be called wearable smart devices or smart wearable devices.
  • wearable technology it is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes, etc. . It may also be other devices capable of communicating with network devices, such as relay devices.
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the first terminal device 101 and the second terminal device 102 .
  • the International Telecommunication Union defines three application scenarios for 5G and future mobile communication systems: enhanced mobile broadband (eMBB), high reliability and low latency communication (ultra reliable and low latency communications, URLLC) and massive machine type communications (massive machine type communications, mMTC).
  • eMBB enhanced mobile broadband
  • URLLC ultra reliable and low latency communications
  • mMTC massive machine type communications
  • eMBB still aims at users' access to multimedia content, services and data, and its demand is growing rapidly.
  • eMBB may be deployed in different scenarios, such as indoors, urban areas, and rural areas, the capabilities and requirements vary greatly, so it cannot be generalized and must be analyzed in detail in combination with specific deployment scenarios.
  • Typical applications of URLLC include: industrial automation, electric power automation, telemedicine operations (surgery), traffic safety guarantee, etc.
  • the typical characteristics of mMTC include: high connection density, small data volume, delay-insensitive services, low cost and long service life of modules, etc.
  • Radio resource control (RRC) state the terminal device has three RRC states: RRC connected state (RRC_CONNECTED), RRC idle state (RRC_IDLE) and inactive state (RRC_INACTIVE).
  • RRC connected state RRC_CONNECTED
  • RRC idle state RRC_IDLE
  • inactive state RRC_INACTIVE
  • RRC_IDLE (or, can also be referred to as idle state.
  • idle state and “RRC idle state” are the same concept, and the two names can be interchanged): the terminal device has not established an RRC connection with the network, and the base station has no storage The context of this end device. If the terminal device needs to enter the RRC connected state from the RRC idle state, it needs to initiate an RRC connection establishment process. Mobility is cell selection and reselection based on terminal equipment, paging is initiated by the core network (CN), and the paging area is configured by the CN.
  • CN core network
  • RRC_CONNECTED (or, can also be referred to as connected state.
  • connected state and “RRC connected state” are the same concept, and the two terms can be interchanged): the terminal device has established an RRC connection with the network, and data transmission.
  • the base station stores the context of the terminal device.
  • the base station knows the location of the terminal equipment at the specific cell level. Mobility is mobility controlled by the base station. Unicast data can be transmitted between the base station and the terminal equipment.
  • RRC inactive state (or, can also be referred to as inactive state for short.
  • deactivated state “deactivated state”, “deactivated state”, “inactive state”, “RRC inactive state” and “RRC deactivated state” , are the same concept, and these types of names can be interchanged): the terminal device entered the RRC connection state before, and then the base station released the RRC connection, but the base station saved the context of the terminal device.
  • Mobility is cell selection and reselection based on terminal equipment, there is a connection between the core network and (radio access network, RAN), paging is triggered by RAN, RAN-based paging area is managed by RAN, and the base station knows the location of terminal equipment It is based on the paging area level of RAN.
  • RAN radio access network
  • the reliability of the communication link after the interruption cannot be guaranteed.
  • the reliability after the communication link is interrupted is also particularly important, relying solely on the communication link between a terminal device and the network device cannot guarantee the reliability after the communication link is interrupted, therefore, in order to solve the above problems, the embodiment of the present application proposes the following solutions.
  • Figure 2 is a method for service switching between terminal devices provided by the embodiment of the present application, the method includes but is not limited to the following steps:
  • the first terminal device detects a preset event.
  • this step is optional.
  • the preset events include at least one of the following: event 1: the first terminal device receives a first request message from an upper layer, and the upper layer is a non-access stratum NAS layer or an application layer; the first request message uses To instruct the first terminal device to perform service switching.
  • Event 2 a wireless link failure occurs on the first terminal device.
  • Event 3 The first terminal device has a wireless link failure and fails to re-establish.
  • Event 4 The number of wireless link failures that occur on the first terminal device within the time window T1 exceeds a first threshold.
  • Event 5 The interval between two consecutive wireless link failures occurring on the first terminal device is less than or equal to a second threshold.
  • Event 6 The serving cell measurement result of the first terminal device is less than or equal to the third threshold.
  • Event 7 The measurement result of the serving cell of the first terminal device is less than or equal to the fourth threshold and lasts for a first duration.
  • Event 8 the first terminal device is in the state of camping on any cell (camp on any cell) or in the state of selecting any cell (any cell selection).
  • Event 9 The quality of service (quality of service, QoS) measurement result of the first terminal device does not meet the QoS requirement.
  • Event 10 the QoS measurement result of the first terminal device does not meet the QoS requirement and lasts for a second duration.
  • Event 11 The timer T2 of the first terminal device times out.
  • Event 12 The first terminal device searches for at least one terminal device capable of service switching.
  • Event 13 The first terminal device receives a second request message from the network device, where the second request message is used to instruct the first terminal device to perform service switching.
  • Event 14 The first terminal device receives a third request message from the second terminal device, where the third request message is used to instruct the first terminal device to perform service switching.
  • the preset event can include any one of Event 1 to Event 14, and of course, can also include any number of Events 1 to 14. When any number of events are included, at least two single events included must be triggered The preset event is considered to be triggered only when In one example, any event from event 1 to event 11 can be used in combination with event 12 or event 13 or event 14. Assuming that the preset event includes event 1 and event 12, then the preset event is: the first terminal device The first request message from the upper layer is received, and the first terminal device searches for at least one terminal device capable of service switching. In an example, events 1 to 5 can be used in combination with event 6 or event 7.
  • the preset event is: the first terminal device receives the first request from the upper layer message, and the serving cell measurement result of the first terminal device is less than or equal to the third threshold.
  • events 9 to 11 can be used in combination with event 6 or event 7, assuming that the preset events include event 9 and event 6, then the preset event is: the QoS measurement result of the first terminal device does not meet the QoS requirements, and the serving cell measurement result of the first terminal device is less than or equal to the third threshold.
  • At least one of T1, T2, the first threshold, the second threshold, the third threshold, the fourth threshold, the first duration and the second duration can be determined in the following two ways: the first way: the second A terminal device receives a first system broadcast message or first dedicated signaling from a network device, and the first system broadcast message or first dedicated signaling is used to configure at least one of the following: T1, T2, a first threshold, a first Second threshold, third threshold, fourth threshold, first duration and second duration.
  • the second way: at least one of T1, T2, the first threshold, the second threshold, the third threshold, the fourth threshold, the first duration and the second duration is a default value.
  • the serving cell measurement result includes: a cell-level measurement result or a beam-level measurement result.
  • the serving cell measurement results include at least one of the following: downlink reference signal received power (reference signal received power, RSRP), reference signal receiving quality (reference signal receiving quality, RSRQ) and signal-to-noise ratio (signal-noise ratio, SINR ).
  • the first terminal device when the preset event includes event 13: the first terminal device receives a second request message from the network device, and the second request message is used to instruct the first terminal device to perform service switching, the The method further includes: the first terminal device receives auxiliary information from the network device, and the auxiliary information is used to assist the first terminal device in searching for the second terminal device.
  • the method further includes: the first terminal device starts the timer T2 according to the start condition, and the start condition includes the first The QoS measurement result of the terminal device does not meet the QoS requirement; the first terminal device stops the timer T2 according to the stop condition, and the stop condition includes that the QoS measurement result of the first terminal device meets the QoS requirement during the running of the timer T2.
  • the QoS requirements include at least one of the following: data transmission bit error rate requirements, data transmission delay requirements, and data transmission rate requirements.
  • the first terminal device establishes a communication link with the second terminal device.
  • the first terminal device may be a source terminal device, and correspondingly, the second terminal device may be a target terminal device.
  • establishing a communication link between the first terminal device and the second terminal device may include processes such as a synchronization process, a channel establishment process, a capability interaction process, a configuration interaction process, and a security establishment process.
  • the method before the first terminal device establishes a communication link with the second terminal device, the method further includes: the first terminal device receives search configuration information from the network device, and the search configuration information is used for Assisting the first terminal device in searching for the second terminal device.
  • the search configuration information includes at least one of the following: synchronization signal information of the second terminal device, location information of the second terminal device, and identification information of the second terminal device.
  • the first terminal device receives the second system broadcast message or the second dedicated signaling from the network device, and the second system broadcast message or the second dedicated signaling is used to configure the search configuration information.
  • step S202 there is no fixed time sequence between step S202 and step S201.
  • the first terminal device sends a service switching request message to the second terminal device.
  • the service switching request message is used to request the second terminal device to activate at least one session or service specified by the first terminal device; the service switching request message includes identification information of at least one session or service.
  • the service switching request message includes identification information of two services, namely service 1 and service 2
  • the service switching request message is used to request the second terminal device to activate the service 1 and service specified by the first terminal device. business2.
  • the service switching request message also includes the serving-temporary mobile subscriber identity (serving-temporary mobile subscriber identity, S-TMSI) and/or cell radio network temporary identifier (cell radio network temporary identifier, C-TMSI) of the first terminal device. RNTI).
  • serving-temporary mobile subscriber identity serving-temporary mobile subscriber identity, S-TMSI
  • cell radio network temporary identifier cell radio network temporary identifier, C-TMSI
  • the service switching request message may be a non-access stratum (Non-access stratum, NAS) message or an access stratum message, wherein the access stratum message may be a radio resource control (radio resource control, RRC) message, Layer 2 message, layer 1 message; wherein, layer 2 message refers to service data adaptation protocol layer (service data adaptation protocol, SDAP), packet data convergence protocol layer (packet data convergence protocol, PDCP), wireless link layer control protocol Layer (radio link control, RLC), media access control layer (media access control, MAC) any layer in the message sent; layer 1 message refers to the message carried by the physical downlink control channel (physical downlink control channel, PDCCH), physical downlink A message carried by a physical downlink shared channel (PDSCH).
  • RRC radio resource control
  • layer 2 message refers to service data adaptation protocol layer (service data adaptation protocol, SDAP), packet data convergence protocol layer (packet data convergence protocol, PDCP), wireless link layer control protocol Layer (radio link control, RLC), media access control layer (media access control
  • the method further includes: if a preset event is detected, triggering the first terminal device to send a service switching request message to the second terminal device.
  • a preset event is detected, triggering the first terminal device to send a service switching request message to the second terminal device.
  • the relevant description of the preset event can be found in step S201, which will not be repeated here.
  • the method further includes: the first terminal device receives indication information from the network device, and the indication information is used to indicate whether to send the service switching request message to the second terminal device. Service switching request message.
  • the indication information may also be used to indicate that the service switching request message is not to be sent to the second terminal device.
  • the indication information may be carried in at least one of the following messages: dedicated signaling, system broadcast message, NAS message, downlink control information (downlink control information, DCI), media access control element (medium access control control element) , MAC CE), paging short message and paging message.
  • the method further includes: the first terminal device determines to send the service switching request message to the second terminal device according to the capability information of the first terminal device, and the capability The information is used to indicate that it is determined to send a service switching request message to the second terminal device.
  • the capability information may also be used to indicate that the service switching request message is not to be sent to the second terminal device.
  • step S203 is not performed.
  • the capability information may be set before the first terminal device leaves the factory, that is, configured in a pre-configuration process.
  • the second terminal device receives the service switching request message from the first terminal device.
  • the second terminal device sends a first response message or a second response message to the first terminal device.
  • this step is optional.
  • the first response message is used to indicate that the session or service identified by all the identification information in the service switching request message is completely accepted, or the first response message is used to indicate that the session identified by all the identification information in the service switching request message Or business is denied outright.
  • Completely accepted or completely rejected can be expressed in the following three ways: In the first way, being completely accepted or completely rejected can be indicated by including different parameters in one message.
  • the first response message includes two Two indication fields, namely indication field 1 and indication field 2, wherein indication field 1 is used to indicate that the session or service identified by all identification information in the service switching request message is completely accepted; indication field 2 is used to indicate that the service switching request The sessions or services identified by all the identification information in the message are completely rejected.
  • the first response message includes an indication field.
  • the indication field is 1 When , it means that the sessions or services identified by all the identification information in the service switching request message are completely accepted; when the indication field is 0, it means that the sessions or services identified by all the identification information in the service switching request message are completely rejected.
  • being completely accepted or completely rejected can also be distinguished by two independent messages.
  • the second response message is used to indicate at least one session or service identification information accepted in the service switching request message, and/or the second response message is used to indicate at least one session rejected in the service switching request message Or business identification information. That is to say, assuming that the service switching request message includes identification information of two services, namely service 1 and service 2, and the identification information of the service accepted by the second terminal device is service 1, then the second response message is used to indicate the service switching request The identification information of the accepted service in the message is service 1, and/or the second response message is used to indicate that the identification information of the rejected service in the service switching request message is service 2.
  • the second response message further includes rejection reason information and/or rejected time limit information of at least one rejected session or service.
  • the rejected reason information may be that the rejected session or service conflicts with the second terminal device's own session or service, or that the rejected session or service is rejected by the network device, and so on.
  • the rejected time limit information may be a service switching request message that defines the duration of the rejected session or service, that is, how long the first terminal device is allowed to initiate the rejected session or service again.
  • the first response message or the second response message may be a NAS message or an access layer message, wherein the access layer message may be an RRC message, a layer 2 message, or a layer 1 message.
  • the access layer message may be an RRC message, a layer 2 message, or a layer 1 message.
  • the first terminal device receives the first response message or the second response message from the second terminal device.
  • this step is optional.
  • the second terminal device sends a service request message to the network device.
  • the network device may be an access network device or a core network device.
  • the service request message includes identification information of the session or service accepted in the service switching request message.
  • the identification information of the accepted session or service corresponds to the first response message or the second response message, that is to say, the accepted identification information of the session or service may refer to the service switching request message indicated in the first response message.
  • the identification information of the fully accepted session or service identified by all the identification information in may also refer to the identification information of at least one session or service accepted in the service switching request message indicated in the second response message.
  • the second terminal device sends the The identification information of the service included in the service request message is service 1.
  • the service switching request message includes two types of service identification information, namely service 3 and service 4, and the identification information of the service accepted by the second terminal device is service 3 and service 4, then the second terminal device sends the network The service identification information included in the service request message sent by the device is service 3 and service 4.
  • the service request message may also include the S-TMSI and/or C-RNTI of the first terminal device.
  • the network device receives the service request message from the second terminal device.
  • the service request message includes identification information of the session or service accepted in the service switching request message.
  • step S205 and step S206, and step S207 and step S208 have no time sequence.
  • step S205 and step S206 occur before step S207 and step S208, the identification information of the accepted session or service contained in the service switching request message in step S207 and the first response message indication in step S205 are completely accepted
  • the identification information of the session or service or the identification information of at least one session or service that is accepted in the second response message indicates that it corresponds to; in this case, if the second response message also includes the at least one session or service that was rejected Rejected reason information, where the rejected reason information may be that at least one rejected session or service conflicts with the second terminal device's own session or service.
  • step S205 the identification information of the fully accepted session or service indicated by the first response message in step S205 or the second response message indicates at least one accepted session or The identification information of the service corresponds to the session or service identification information accepted by the network device in step S208; in this case, if the second response message also includes the reason information of the rejection of at least one session or service that was rejected, the rejected The reason information may be that the at least one rejected session or service conflicts with the second terminal device's own session or service, or the rejected at least one session or service is rejected by the network device.
  • the service switching request message can be sent to the second terminal device through the first terminal device.
  • the second terminal device receives the service switching request message from the first terminal device, and then the second terminal device.
  • FIG. 3 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • the device may include: a processor 310 and a memory 320.
  • the device further includes a transceiver 330,
  • the memory 320 is used to store computer programs or instructions 321;
  • the transceiver 330 is used to receive and send data;
  • the processor 310 is used to call computer programs or instructions to perform the following operations:
  • the service switching request message is used to request the second terminal device to activate at least one session or service specified by the device; the service switching request message includes the Identification information of at least one session or service.
  • the service switching request message further includes the serving-temporary mobile subscriber identity S-TMSI and/or cell radio network temporary identity C-RNTI of the device.
  • the processor 310 is further configured to, when a preset event is detected, trigger execution of sending a service switching request message to the second terminal device.
  • the preset event includes at least one of the following:
  • the transceiver 330 is further configured to receive a first request message from an upper layer, the upper layer being a non-access stratum NAS layer or an application layer; the first request message is used to instruct the device to perform service switching;
  • the device has a wireless link failure
  • the device has a wireless link failure and fails to re-establish
  • the number of wireless link failures of the device within the time window T1 exceeds a first threshold
  • the interval between two consecutive wireless link failures occurring in the device is less than or equal to a second threshold
  • the serving cell measurement result of the device is less than or equal to a third threshold
  • the serving cell measurement result of the device is less than or equal to a fourth threshold and lasts for a first duration
  • the device is in a state of camping on any cell or in a state of selecting any cell (any cell selection);
  • the quality of service QoS measurement result of the device does not meet the QoS requirement
  • the QoS measurement result of the device does not meet the QoS requirement for a second duration
  • the timer T2 of the device expires
  • the device searches for at least one terminal device capable of service switching
  • the transceiver 330 is further configured to receive a second request message from a network device, where the second request message is used to instruct the apparatus to perform service switching;
  • the transceiver 330 is further configured to receive a third request message from the second terminal device, where the third request message is used to instruct the apparatus to perform service switching.
  • the transceiver 330 is further configured to receive auxiliary information from a network device, where the auxiliary information is used to assist the apparatus in searching for the second terminal device.
  • the transceiver 330 is further configured to receive a first system broadcast message or a first dedicated signaling from a network device, and the first system broadcast message or first dedicated signaling is used for Configure at least one of the following: the T1, T2, the first threshold, the second threshold, the third threshold, the fourth threshold, the first duration, and the second duration.
  • At least one of T1, T2, the first threshold, the second threshold, the third threshold, the fourth threshold, the first duration and the second duration is a default value.
  • the serving cell measurement result includes: a cell-level measurement result or a beam-level measurement result.
  • the serving cell measurement results include at least one of the following: downlink reference signal received power RSRP, reference signal received quality RSRQ, and signal-to-noise ratio SINR.
  • the processor 310 is further configured to start the timer T2 according to a start condition, the start condition includes that the QoS measurement result of the device does not meet the QoS requirement; the processor 310 , further configured to stop the timer T2 according to a stop condition, the stop condition includes that during the running of the timer T2, the QoS measurement result of the device satisfies the QoS requirement.
  • the QoS requirements include at least one of the following: data transmission bit error rate requirements, data transmission delay requirements, and data transmission rate requirements.
  • the processor 310 is further configured to establish a communication link with the second terminal device before sending the service switching request message to the second terminal device.
  • the transceiver 330 is further configured to receive search configuration information from the network device before establishing a communication link with the second terminal device, and the search configuration The information is used to assist the apparatus in searching for the second terminal device.
  • the search configuration information includes at least one of the following: synchronization signal information of the second terminal device, location information of the second terminal device, and an identifier of the second terminal device information.
  • the transceiver 330 is further configured to receive a second system broadcast message or second dedicated signaling from the network device, and the second system broadcast message or second dedicated signaling Used to configure the search configuration information.
  • the transceiver 330 is further configured to receive a first response message from the second terminal device after sending a service switching request message to the second terminal device, and the first The response message is used to indicate that the session or service identified by all the identification information in the service switching request message is completely accepted, or the first response message is used to indicate that the session or service identified by all the identification information in the service switching request message The session or service is completely denied.
  • the transceiver 330 is further configured to receive a second response message from the second terminal device after sending a service switching request message to the second terminal device, and the second The response message is used to indicate the identification information of at least one session or service accepted in the service switching request message, and/or the second response message is used to indicate at least one of the rejected services in the service switching request message Identification information of a session or service.
  • the second response message further includes reason information and/or time limit information of the rejected at least one session or service.
  • the service switching request message, the first response message or the second response message is a NAS message, or the service switching request message, the first response message or the The second response message is an access layer message.
  • the transceiver 330 is further configured to receive indication information from the network device before sending a service switching request message to the second terminal device, where the indication information is used to indicate Determine to send the service switching request message to the second terminal device.
  • the indication information is carried in at least one of the following messages: dedicated signaling, system broadcast messages, NAS messages, downlink control information DCI, media access control unit MAC CE, homing SMS and paging messages.
  • the transceiver 330 is further configured to, before sending the service switching request message to the second terminal device, determine according to the capability information of the device to send the The service switching request message, the capability information is used to indicate whether to send the service switching request message to the second terminal device.
  • the network device is an access network device or a core network device.
  • FIG. 3 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • the device may include: a processor 310 and a memory 320.
  • the device further includes a transceiver 330,
  • the memory 320 is used to store computer programs or instructions 321; the transceiver 330 is used to receive and send data; the processor 310 is used to invoke computer programs or instructions to perform the following operations:
  • the service switching request message includes identification information of the at least one session or service
  • the transceiver 330 is configured to send a service request message to a network device, where the service request message includes identification information of the session or service accepted in the service switching request message.
  • the service switching request message further includes a serving-temporary mobile subscriber identity S-TMSI and/or a cell radio network temporary identity C-RNTI of the first terminal device.
  • the service request message includes the serving-temporary mobile subscriber identity S-TMSI and/or the cell radio network temporary identity C-RNTI of the first terminal device.
  • the transceiver 330 is further configured to send a third request message to the first terminal device before receiving the service switching request message from the first terminal device, and the third request The message is used to instruct the first terminal device to perform service switching.
  • the transceiver 330 is further configured to send a first response message to the first terminal device after receiving the service switching request message from the first terminal device, and the first response The message is used to indicate that the session or service identified by all the identification information in the service switching request message is completely accepted, or the first response message is used to indicate that the session identified by all the identification information in the service switching request message Or business is denied outright.
  • the transceiver 330 is further configured to send a second response message to the first terminal device after receiving the service switching request message from the first terminal device, and the second response The message is used to indicate the identification information of at least one session or service accepted in the service switching request message, and/or the second response message is used to indicate at least one session rejected in the service switching request message Or business identification information.
  • the second response message further includes reason information and/or time limit information of the rejected at least one session or service.
  • the service switching request message, the first response message or the second response message is a NAS message, or the service switching request message, the first response message or the The second response message is an access layer message.
  • FIG. 4 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • the device may include: a processor 410 and a memory 420.
  • the device further includes a transceiver 430
  • the memory 420 is used to store computer programs or instructions 421; the transceiver 430 is used to receive and send data; the processor 410 is used to call computer programs or instructions to perform the following operations:
  • the service request message from the second terminal device is received through the transceiver 430, the service request message includes the identification information of the session or service accepted in the service switching request message, and the service switching request message is sent by the first terminal device to For the second terminal device, the service switching request message is used for the first terminal device to request the second terminal device to activate at least one session or service specified by the first terminal device; the service switching request The message includes identification information of the at least one session or service.
  • the service request message further includes a serving-temporary mobile subscriber identity S-TMSI and/or a cell radio network temporary identity C-RNTI of the first terminal device.
  • the transceiver 430 is further configured to send search configuration information to the first terminal device before receiving the service request message from the second terminal device, the search configuration information It is used to assist the first terminal device to search for the second terminal device.
  • the search configuration information includes at least one of the following: synchronization signal information of the second terminal device, location information of the second terminal device, and an identifier of the second terminal device information.
  • the transceiver 430 is further configured to send a second system broadcast message or second dedicated signaling to the first terminal device, and the second system broadcast message or second dedicated signaling The signaling is used to configure the search configuration information.
  • the transceiver 430 is further configured to send a second request message to the first terminal device before receiving the service request message from the second terminal device, and the second request message It is used to instruct the first terminal device to perform service switching.
  • the transceiver 430 is further configured to send indication information to the first terminal device before receiving the service request message from the second terminal device, where the indication information is used to indicate whether to determine Send the service switching request message to the second terminal device.
  • the indication information is carried in at least one of the following messages: dedicated signaling, system broadcast messages, NAS messages, downlink control information DCI, media access control unit MAC CE, homing SMS and paging messages.
  • the device is an access network device or a core network device.
  • FIG. 5 shows another possible structural diagram of a terminal device involved in the foregoing embodiment.
  • the device may include: a communication unit 501 and a processing unit 502 . Wherein, these units may perform corresponding functions of the first terminal device in the above method example.
  • the processing unit 502 is configured to control and manage actions of the first terminal device, for example, the processing unit 502 is configured to support the first terminal device to execute step 201 in FIG. 2 , and/or other processes for the technologies described herein.
  • the communication unit 501 may be used to support communication between the first terminal device and other devices, for example, communication with a second terminal device or a network device.
  • the processing unit 502 may be a processor or a controller, such as a central processing unit (Central Processing Unit, CPU), a general processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application-Specific Integrated Circuit, ASIC), Field Programmable Gate Array (Field Programmable Gate Array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, a combination of one or more microprocessors, a combination of DSP and a microprocessor, and so on.
  • the communication unit 501 may be a transceiver, a transceiver circuit, a radio frequency chip, and the like.
  • the communication unit 501 is configured to send a service switching request message to the second terminal device, where the service switching request message is used to request the second terminal device to activate at least one session or service specified by the apparatus; the service switching request message includes Identification information of the at least one session or service.
  • the service switching request message further includes a serving-temporary mobile subscriber identity S-TMSI and/or a cell radio network temporary identity C-RNTI of the first terminal device.
  • the processing unit 502 is further configured to trigger the communication unit to send a service switching request message to the second terminal device when a preset event is detected.
  • the preset event includes at least one of the following:
  • the communication unit 501 is configured to receive a first request message from an upper layer, where the upper layer is a non-access stratum NAS layer or an application layer; the first request message is used to instruct the device to perform service switching;
  • the device has a wireless link failure
  • the device has a wireless link failure and fails to re-establish
  • the number of wireless link failures of the device within the time window T1 exceeds a first threshold
  • the interval between two consecutive wireless link failures occurring in the device is less than or equal to a second threshold
  • the serving cell measurement result of the device is less than or equal to a third threshold
  • the serving cell measurement result of the device is less than or equal to a fourth threshold and lasts for a first duration
  • the device is in a state of camping on any cell or in a state of selecting any cell (any cell selection);
  • the quality of service QoS measurement result of the device does not meet the QoS requirement
  • the QoS measurement result of the device does not meet the QoS requirement for a second duration
  • the timer T2 of the device expires
  • the device searches for at least one terminal device capable of service switching
  • the communication unit 501 is configured to receive a second request message from a network device, where the second request message is used to instruct the apparatus to perform service switching;
  • the communication unit 501 is configured to receive a third request message from the second terminal device, where the third request message is used to instruct the apparatus to perform service switching.
  • the communication unit 501 is further configured to receive auxiliary information from a network device, where the auxiliary information is used to assist the apparatus in searching for the second terminal device.
  • the communication unit 501 is further configured to receive a first system broadcast message or a first dedicated signaling from a network device, and the first system broadcast message or first dedicated signaling is used to Configure at least one of the following: the T1, T2, the first threshold, the second threshold, the third threshold, the fourth threshold, the first duration, and the second duration.
  • At least one of T1, T2, the first threshold, the second threshold, the third threshold, the fourth threshold, the first duration and the second duration is a default value.
  • the serving cell measurement result includes: a cell-level measurement result or a beam-level measurement result.
  • the serving cell measurement results include at least one of the following: downlink reference signal received power RSRP, reference signal received quality RSRQ, and signal-to-noise ratio SINR.
  • the processing unit 502 is further configured to start the timer T2 according to a start condition, and the start condition includes that the QoS measurement result of the device does not meet the QoS requirement; the processing unit 502 , further configured to stop the timer T2 according to a stop condition, the stop condition includes that during the running of the timer T2, the QoS measurement result of the device satisfies the QoS requirement.
  • the QoS requirements include at least one of the following: data transmission bit error rate requirements, data transmission delay requirements, and data transmission rate requirements.
  • the processing unit 502 is further configured to establish a communication link with the second terminal device before sending the service switching request message to the second terminal device.
  • the communication unit 501 is further configured to receive search configuration information from the network device before establishing a communication link with the second terminal device, and the search configuration The information is used to assist the apparatus in searching for the second terminal device.
  • the search configuration information includes at least one of the following: synchronization signal information of the second terminal device, location information of the second terminal device, and an identifier of the second terminal device information.
  • the communication unit 501 is further configured to receive a second system broadcast message or second dedicated signaling from the network device, and the second system broadcast message or second dedicated signaling Used to configure the search configuration information.
  • the communication unit 501 is further configured to receive a first response message from the second terminal device after sending a service switching request message to the second terminal device, and the first The response message is used to indicate that the session or service identified by all the identification information in the service switching request message is completely accepted, or the first response message is used to indicate that the session or service identified by all the identification information in the service switching request message The session or service is completely denied.
  • the communication unit 501 is further configured to receive a second response message from the second terminal device after sending the service switching request message to the second terminal device, and the second The response message is used to indicate the identification information of at least one session or service accepted in the service switching request message, and/or the second response message is used to indicate at least one of the rejected services in the service switching request message Identification information of a session or service.
  • the second response message further includes reason information and/or time limit information of the rejected at least one session or service.
  • the service switching request message, the first response message or the second response message is a NAS message, or the service switching request message, the first response message or the The second response message is an access layer message.
  • the communication unit 501 is further configured to receive indication information from the network device before sending a service switching request message to the second terminal device, where the indication information is used to indicate Determine to send the service switching request message to the second terminal device.
  • the indication information is carried in at least one of the following messages: dedicated signaling, system broadcast messages, NAS messages, downlink control information DCI, media access control unit MAC CE, homing SMS and paging messages.
  • the communication unit 501 is further configured to, before sending the service switching request message to the second terminal device, determine according to the capability information of the device to send the The service switching request message, the capability information is used to indicate whether to send the service switching request message to the second terminal device.
  • the network device is an access network device or a core network device.
  • FIG. 5 shows another possible structural diagram of a terminal device involved in the foregoing embodiment.
  • the device may include: a communication unit 501 and a processing unit 502 . Wherein, these units may perform corresponding functions of the second terminal device in the above method example.
  • the processing unit 502 is configured to control and manage actions of the second terminal device.
  • the communication unit 501 may be used to support communication between the second terminal device and other devices, for example, communication with the first terminal device and a network device.
  • the processing unit 502 may be a processor or a controller, such as a central processing unit (Central Processing Unit, CPU), a general processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application-Specific Integrated Circuit, ASIC), Field Programmable Gate Array (Field Programmable Gate Array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, a combination of one or more microprocessors, a combination of DSP and a microprocessor, and so on.
  • the communication unit 501 may be a transceiver, a transceiver circuit, a radio frequency chip, and the like.
  • the communication unit 501 is configured to receive a service switching request message from the first terminal device, where the service switching request message is used for the first terminal device to request the apparatus to activate at least one service specified by the first terminal device.
  • a session or a service; the service switching request message includes identification information of the at least one session or service;
  • the communication unit 501 is further configured to send a service request message to the network device, where the service request message includes identification information of the session or service accepted in the service switching request message.
  • the service switching request message further includes a serving-temporary mobile subscriber identity S-TMSI and/or a cell radio network temporary identity C-RNTI of the first terminal device.
  • the service request message includes the serving-temporary mobile subscriber identity S-TMSI and/or the cell radio network temporary identity C-RNTI of the first terminal device.
  • the communication unit 501 is further configured to send a third request message to the first terminal device before receiving the service switching request message from the first terminal device, the third request The message is used to instruct the first terminal device to perform service switching.
  • the communication unit 501 is further configured to send a first response message to the first terminal device after receiving the service switching request message from the first terminal device, and the first response The message is used to indicate that the session or service identified by all the identification information in the service switching request message is completely accepted, or the first response message is used to indicate that the session identified by all the identification information in the service switching request message Or business is denied outright.
  • the communication unit 501 is further configured to send a second response message to the first terminal device after receiving the service switching request message from the first terminal device, and the second response
  • the message is used to indicate the identification information of at least one session or service accepted in the service switching request message, and/or the second response message is used to indicate at least one session rejected in the service switching request message Or business identification information.
  • the second response message further includes reason information and/or time limit information of the rejected at least one session or service.
  • the service switching request message, the first response message or the second response message is a NAS message, or the service switching request message, the first response message or the The second response message is an access layer message.
  • FIG. 6 shows another possible structural diagram of a network device involved in the foregoing embodiment.
  • the device may include: a communication unit 601 and a processing unit 602 . Wherein, these units may perform corresponding functions of the network device in the above method example.
  • the processing unit 602 is configured to control and manage actions of network devices.
  • the communication unit 601 may be used to support communication between the network device and other devices, for example, communication with the first terminal device and the second terminal device.
  • the processing unit 602 can be a processor or a controller, such as a central processing unit (Central Processing Unit, CPU), a general processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application-Specific Integrated Circuit, ASIC), Field Programmable Gate Array (Field Programmable Gate Array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, a combination of one or more microprocessors, a combination of DSP and a microprocessor, and so on.
  • the communication unit 601 may be a transceiver, a transceiver circuit, a radio frequency chip, and the like.
  • the communication unit 601 is configured to receive a service request message from the second terminal device, the service request message includes the identification information of the session or service accepted in the service switching request message, and the service switching request message is generated by the first sent by the terminal device to the second terminal device, the service switching request message is used by the first terminal device to request the second terminal device to activate at least one session or service specified by the first terminal device;
  • the service switching request message includes identification information of the at least one session or service.
  • the service request message further includes the serving-temporary mobile subscriber identity S-TMSI and/or cell radio network temporary identity C-RNTI of the first terminal device.
  • the communication unit 601 is further configured to send search configuration information to the first terminal device before receiving the service request message from the second terminal device, the search configuration information It is used to assist the first terminal device to search for the second terminal device.
  • the search configuration information includes at least one of the following: synchronization signal information of the second terminal device, location information of the second terminal device, and an identifier of the second terminal device information.
  • the communication unit 601 is further configured to send a second system broadcast message or second dedicated signaling to the first terminal device, and the second system broadcast message or second dedicated signaling command is used to configure the search configuration information.
  • the communication unit 601 is further configured to send a second request message to the first terminal device before receiving the service request message from the second terminal device, the second request message It is used to instruct the first terminal device to perform service switching.
  • the communication unit 601 is further configured to, before receiving the service request message from the second terminal device, send indication information to the first terminal device, where the indication information is used to indicate to determine Send the service switching request message to the second terminal device.
  • the indication information is carried in at least one of the following messages: dedicated signaling, system broadcast messages, NAS messages, downlink control information DCI, media access control unit MAC CE, homing SMS and paging messages.
  • the device is an access network device or a core network device.
  • each functional unit in the embodiment of the present application may be integrated into one processing unit, or each unit may physically exist separately, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
  • An embodiment of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program so that when running on a computer, the first terminal device, Part or all of the steps described by the second terminal device or network device.
  • An embodiment of the present application also provides a computer program product, wherein the computer program product includes a computer program or instructions, so that when running on a computer, the first terminal device and the second terminal device in the above method embodiments execute or some or all of the steps described by the network device.
  • the computer program product may be a software installation package.
  • the functions described in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
  • the available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disk, SSD) )Wait.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a digital video disc (digital video disc, DVD)
  • a semiconductor medium for example, a solid state disk (solid state disk, SSD)

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Abstract

本申请实施例提供一种终端设备间的业务切换的方法及装置,该方法包括:第一终端设备向第二终端设备发送业务切换请求消息,所述业务切换请求消息用于请求第二终端设备激活所述第一终端设备指定的至少一种会话或者业务;所述业务切换请求消息包括所述至少一种会话或者业务的标识信息,采用本申请实施例能够实现会话或者业务的连续性,并提高了该会话或者业务通信的可靠性。

Description

一种终端设备间的业务切换的方法及装置 技术领域
本申请涉及通信技术领域,尤其涉及一种终端设备间的业务切换的方法及装置。
背景技术
可靠性是评价通信系统好坏的一个重要指标,在现有的通信系统中,可靠性主要是通过尽可能的维持网络设备和终端设备之间的数据交互链路的方式来保证,但是这种机制不能够保证网络设备和终端设备之间的通信链路中断后的可靠性,然而对于一些特殊的应用场景:例如,工厂设备制造控制、电网供电控制等,通信链路中断后的可靠性也尤其重要,因此,通过单独依赖一个终端设备与网络设备之间的通信链路无法保证通信链路中断之后的可靠性。
发明内容
本申请实施例公开了一种终端设备间的业务切换的方法及装置,能够实现会话或者业务的连续性,并提高了该会话或者业务通信的可靠性。
本申请实施例第一方面公开了一种终端设备间的业务切换的方法,包括:
第一终端设备向第二终端设备发送业务切换请求消息,所述业务切换请求消息用于请求第二终端设备激活所述第一终端设备指定的至少一种会话或者业务;所述业务切换请求消息包括所述至少一种会话或者业务的标识信息。
本申请实施例第二方面公开了一种终端设备间的业务切换的方法,包括:
第二终端设备接收来自第一终端设备的业务切换请求消息,所述业务切换请求消息用于所述第一终端设备请求第二终端设备激活所述第一终端设备指定的至少一种会话或者业务;所述业务切换请求消息包括所述至少一种会话或者业务的标识信息;
所述第二终端设备向网络设备发送业务请求消息,所述业务请求消息包括所述业务切换请求消息中被接受的会话或业务的标识信息。
本申请实施例第三方面公开了一种终端设备间的业务切换的方法,包括:
网络设备接收来自第二终端设备的业务请求消息,所述业务请求消息包括业务切换请求消息中被接受的会话或业务的标识信息,所述业务切换请求消息是由第一终端设备发送给所述第二终端设备的,所述业务切换请求消息用于所述第一终端设备请求所述第二终端设备激活所述第一终端设备指定的至少一种会话或者业务;所述业务切换请求消息包括所述至少一种会话或者业务的标识信息。
本申请实施例第四方面公开了一种终端设备,该终端设备具有实现上述方法中第一终端设备行为的部分或全部功能,比如该第一终端设备的功能可具备本申请中的部分或全部实施例中的功能,也可以具备单独实施本申请中的任一个实施例的功能。所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在可能的设计中,第一终端设备包括处理单元,所述处理单元被配置为支持终端执行上述方法中相应的功能。所述第一终端设备还可包括通信单元,所述通信单元用于支持第一终端设备与其他单元或设备之间的通信。所述第一终端设备还可包括存储单元,所述存储单元用于与处理单元耦合,其保存第一 终端设备必要的程序指令和数据等。可选的,处理单元可以为处理器,通信单元可以为收发器,存储单元可以为存储器。
本申请实施例第五方面公开了一种终端设备,该终端设备具有实现上述方法中终端行为的部分或全部功能,比如该第二终端设备的功能可具备本申请中的部分或全部实施例中的功能,也可以具备单独实施本申请中的任一个实施例的功能。所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在可能的设计中,第二终端设备包括处理单元,所述处理单元被配置为支持终端执行上述方法中相应的功能。所述第二终端设备还可包括通信单元,所述通信单元用于支持第二终端设备与其他单元或设备之间的通信。所述第二终端设备还可包括存储单元,所述存储单元用于与处理单元耦合,其保存第二终端设备必要的程序指令和数据等。可选的,处理单元可以为处理器,通信单元可以为收发器,存储单元可以为存储器。
本申请实施例第六方面公开了一种网络设备,该网络设备具有实现上述方法中网络设备行为的部分或全部功能,比如该网络设备的功能可具备本申请中的部分或全部实施例中的功能,也可以具备单独实施本申请中的任一个实施例的功能。所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在可能的设计中,网络设备包括处理单元,所述处理单元被配置为支持网络设备执行上述方法中相应的功能。所述网络设备还可包括通信单元,所述通信单元用于支持网络设备与其他单元或设备之间的通信。所述网络设备还可包括存储单元,所述存储单元用于与处理单元耦合,其保存网络设备必要的程序指令和数据等。可选的,处理单元可以为处理器,通信单元可以为收发器,存储单元可以为存储器。
在本申请实施例提供的方案中,能够实现会话或者业务的连续性,并提高了该会话或者业务通信的可靠性。
附图说明
图1是本申请实施例提供的一种通信系统100的结构示意图;
图2是本申请实施例提供的一种终端设备间的业务切换的方法的示意图;
图3是本申请实施例提供的一种终端设备的结构示意图;
图4是本申请实施例提供的一种网络设备的结构示意图;
图5是本申请实施例提供的一种终端设备的结构示意图;
图6是本申请实施例提供的一种网络设备的结构示意图。
具体实施方式
下面结合本申请实施例中的附图对本申请实施例进行描述。
请参见图1,图1是本申请实施例提供的一种通信系统100的结构示意图,该通信系统100包括第一终端设备101、第二终端设备102和网络设备103。网络设备103和第一终端设备101之间、网络设备103和第二终端设备102之间可以通过其他设备或网元通信。在本申请实施例中的方法可以应用于图1所示的通信系统100中。
其中,网络设备103可以是基站(base station)、演进型基站(evolved NodeB,eNodeB)、发送接收 点(transmission reception point,TRP)、5G移动通信系统中的下一代基站(next generation NodeB,gNB)、未来移动通信系统中的基站或WiFi系统中的接入节点等;也可以是完成基站部分功能的模块或单元,例如,可以是集中式单元(central unit,CU),也可以是分布式单元(distributed unit,DU)。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。网络设备103还可以包括核心网设备,核心网设备例如包括访问和移动管理功能(access and mobility management function,AMF)、用户面功能(user plane function,UPF)或会话管理功能(session management function,SMF)等。
第一终端设备101以及第二终端设备102也可以称为终端、用户设备(user equipment,UE)、移动台、移动终端等。可以是手机、平板电脑、带无线收发功能的电脑、虚拟现实终端设备、增强现实终端设备、工业控制中的无线终端、车载无线终端、远程手术中的无线终端、智能电网中的无线终端、运输安全中的无线终端、智慧城市中的无线终端、智慧家庭中的无线终端等等。车载无线终端是指放置在车辆内或安装在车辆内的终端设备,也可以称为车载单元(on-board unit,OBU)。还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备或智能穿戴式设备,是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称,如眼镜、手套、手表、服饰及鞋等。还可以是能够与网络设备进行通信的其它设备,例如中继设备。本申请的实施例对第一终端设备101以及第二终端设备102所采用的具体技术和具体设备形态不做限定。
首先,对本申请中的部分用语进行解释说明,以便于本领域技术人员理解。
1)国际电信联盟(international telecommunication union,ITU)为5G以及未来的移动通信系统定义了三大类应用场景:增强型移动宽带(enhanced mobile broadband,eMBB)、高可靠低时延通信(ultra reliable and low latency communications,URLLC)以及海量机器类通信(massive machine type communications,mMTC)。
eMBB仍然以用户获得多媒体内容、服务和数据为目标,其需求增长十分迅速。另一方面,由于eMBB可能部署在不同的场景中,便如室内,市区,农村等,其能力和需求的差别也比较大,所以不能一概而论,必须结合具体的部署场景详细分析。URLLC的典型应用包括:工业自动化,电力自动化,远程医疗操作(手术),交通安全保障等。mMTC的典型特点包括:高连接密度,小数据量,时延不敏感业务,模块的低成本和长使用寿命等。
(2)无线资源控制(radio resource control,RRC)状态,终端设备有3种RRC状态:RRC连接态(RRC_CONNECTED)、RRC空闲态(RRC_IDLE)和非激活态(RRC_INACTIVE)。
RRC_IDLE(或,也可以简称为空闲态。在本文中,“空闲态”和“RRC空闲态”,是同一概念,两种称呼可以互换):终端设备没有与网络建立RRC连接,基站没有存储该终端设备的上下文。如果终端设备需要从RRC空闲态进入RRC连接态,则需要发起RRC连接建立过程。移动性为基于终端设备的小区选择重选,寻呼由核心网(core network,CN)发起,寻呼区域由CN配置。
RRC_CONNECTED(或,也可以简称为连接态。在本文中,“连接态”和“RRC连接态”,是同一概念,两种称呼可以互换):终端设备与网络建立了RRC连接,可以进行数据传输。基站存储该终端设备的上下文。基站知道终端设备的位置是具体小区级别的。移动性是基站控制的移动性。基站和终端设备之间可以传输单播数据。
RRC非激活态(或,也可以简称为非激活态。在本文中,“去活动态”、“去激活态”、“非激活态”、“RRC非激活态”和“RRC去激活态”,是同一概念,这几种称呼可以互换):终端设备之前进入了RRC连接态,然后基站释放了RRC连接,但是基站保存了该终端设备的上下文。移动性为基于终端设备的 小区选择重选,存在核心网与(radio access network,RAN)之间的连接,寻呼由RAN触发,基于RAN的寻呼区域由RAN管理,基站知道终端设备的位置是基于RAN的寻呼区域级别的。
通过尽可能的维持网络设备和终端设备之间的数据交互链路的方式来无法保证通信链路中断后的可靠性,对于一些特殊的应用场景:例如,工厂设备制造控制、电网供电控制等,通信链路中断后的可靠性也尤其重要,通过单独依赖一个终端设备与网络设备之间的通信链路无法保证通信链路中断之后的可靠性,因此,为了解决上述问题,本申请实施例提出了以下解决方案。
请参见图2,图2是本申请实施例提供的一种终端设备间的业务切换的方法,该方法包括但不限于如下步骤:
S201、第一终端设备检测到预设事件。
具体地,该步骤是可选的。
具体地,预设事件包括以下至少一项:事件1:第一终端设备接收到来自上层的第一请求消息,所述上层为非接入层NAS层或者应用层;所述第一请求消息用于指示第一终端设备进行业务切换。事件2:第一终端设备发生无线链路失败。事件3:第一终端设备发生无线链路失败且重建失败。事件4:第一终端设备在时间窗口T1内发生无线链路失败的次数超过第一阈值。事件5:第一终端设备连续发生两次无线链路失败的间隔时间小于或者等于一个第二阈值。事件6:第一终端设备的服务小区测量结果小于或者等于第三阈值。事件7:第一终端设备的服务小区测量结果小于或者等于第四阈值且持续第一时长。事件8:第一终端设备处于驻留在任何小区的状态(camp on any cell)或者处于选择任何小区的状态(any cell selection)。事件9:第一终端设备的服务质量(quality of service,QoS)测量结果不满足QoS需求。事件10:第一终端设备的QoS测量结果不满足QoS需求且持续第二时长。事件11:第一终端设备的计时器T2超时。事件12:第一终端设备搜索到至少一个可进行业务切换的终端设备。事件13:第一终端设备接收到来自网络设备的第二请求消息,所述第二请求消息用于指示第一终端设备进行业务切换。事件14:第一终端设备接收到来自第二终端设备的第三请求消息,所述第三请求消息用于指示第一终端设备进行业务切换。
其中,预设事件可以包括事件1至事件14中的任意一项,当然,也可以包括事件1至事件14任意多项,当包括任意多项时,必须在包含的至少两个单一事件都触发时才认为预设事件触发。在一种示例中,事件1至事件11中的任意一个事件可以与事件12或事件13或事件14组合使用,假设预设事件包括事件1和事件12,那么预设事件为:第一终端设备接收到来自上层的第一请求消息、且第一终端设备搜索到至少一个可进行业务切换的终端设备。在一种示例中,事件1至事件5可以与事件6或事件7组合使用,假设预设事件包括事件1和事件6,那么预设事件为:第一终端设备接收到来自上层的第一请求消息、且第一终端设备的服务小区测量结果小于或者等于第三阈值。在又一种示例中,事件9至事件11可以与事件6或事件7组合使用,假设预设事件包括事件9和事件6,那么预设事件为:第一终端设备的QoS测量结果不满足QoS需求、且第一终端设备的服务小区测量结果小于或者等于第三阈值。
具体地,T1、T2、第一阈值、第二阈值、第三阈值、第四阈值、第一时长和第二时长中的至少一项可以通过以下两种方式进行确定:第一种方式:第一终端设备接收来自网络设备的第一系统广播消息或第一专用信令,所述第一系统广播消息或第一专用信令用于配置以下至少一项:T1、T2、第一阈值、第二阈值、第三阈值、第四阈值、第一时长和第二时长。第二种方式:T1、T2、第一阈值、第二阈值、第 三阈值、第四阈值、第一时长和第二时长中的至少一项为默认取值。
具体地,所述服务小区测量结果包括:小区级测量结果或者波束级测量结果。所述服务小区测量结果包括如下至少一项:下行参考信号的接收功率(reference signal received power,RSRP)、参考信号接收质量(reference signal receiving quality,RSRQ)和信噪比(signal-noise ratio,SINR)。
在一种可能的实现方式中,当预设事件包括事件13:第一终端设备接收到来自网络设备的第二请求消息,所述第二请求消息用于指示第一终端设备进行业务切换,所述方法还包括:第一终端设备接收来自网络设备的辅助信息,该辅助信息用于辅助第一终端设备搜索第二终端设备。
在一种可能的实现方式中,当预设事件包括:事件11:第一终端设备的计时器T2超时,该方法还包括:第一终端设备根据开启条件开启计时器T2,开启条件包括第一终端设备的QoS测量结果不满足QoS需求;第一终端设备根据停止条件停止计时器T2,停止条件包括在计时器T2运行期间,第一终端设备的QoS测量结果满足QoS需求。其中,QoS需求包括以下至少一项:数据传输误码率需求、数据传输时延需求以及数据传输速率需求。
S202、第一终端设备建立与第二终端设备之间的通信链路。
具体地,该步骤为可选的。第一终端设备可以为源终端设备,相应的,第二终端设备可以为目标终端设备。
具体地,第一终端设备建立与第二终端设备之间的通信链路可能包括同步过程、信道建立过程、能力交互过程、配置交互过程以及安全建立过程等过程。
在一种可能的实现方式中,第一终端设备建立与第二终端设备之间的通信链路之前,该方法还包括:第一终端设备接收来自网络设备的搜索配置信息,搜索配置信息用于辅助第一终端设备搜索第二终端设备。其中,该搜索配置信息包括以下至少一项:所述第二终端设备的同步信号信息、所述第二终端设备的位置信息、以及所述第二终端设备的标识信息。
在一种可能的实现方式中,第一终端设备接收来自网络设备的第二系统广播消息或第二专用信令,第二系统广播消息或第二专用信令用于配置搜索配置信息。
其中,步骤S202与步骤S201没有固定的时间先后顺序。
S203、第一终端设备向第二终端设备发送业务切换请求消息。
具体地,业务切换请求消息用于请求第二终端设备激活第一终端设备指定的至少一种会话或者业务;业务切换请求消息包括至少一种会话或者业务的标识信息。在一种示例中,假设业务切换请求消息包括两种业务的标识信息,分别为业务1和业务2,那么该业务切换请求消息用于请求第二终端设备激活第一终端设备指定的业务1和业务2。
具体地,该业务切换请求消息还包括第一终端设备的服务-临时移动用户标识(serving-temporary mobile subscriber identity,S-TMSI)和/或小区无线网络临时标识(cell radio network temporary identifier,C-RNTI)。
具体地,该业务切换请求消息可以为非接入层(Non-access stratum,NAS)消息或接入层消息,其中,接入层消息又可以为无线资源控制(radio resource control,RRC)消息、层2消息、层1消息;其中,层2消息是指服务数据适配协议层(service data adaptation protocol,SDAP)、分组数据汇聚协议层(packet data convergence protocol,PDCP)、无线链路层控制协议层(radio link control,RLC)、媒体介入控制层(media access control,MAC)中任意层发送的消息;层1消息是指物理下行控制信道(physical downlink control channel,PDCCH)承载的消息、物理下行共享信道(physical downlink shared channel, PDSCH)承载的消息。
在一种可能的实现方式中,该方法还包括:若检测到预设事件,则触发执行第一终端设备向第二终端设备发送业务切换请求消息。其中,预设事件的相关描述见步骤S201所述,此处不再赘述。
可选的,第一终端设备向第二终端设备发送业务切换请求消息之前,该方法还包括:第一终端设备接收来自网络设备的指示信息,该指示信息用于指示确定向第二终端设备发送业务切换请求消息。当然,该指示信息也可以用于指示确定不向第二终端设备发送业务切换请求消息,当该指示信息用于指示确定不向第二终端设备发送业务切换请求消息时,不执行步骤S203。其中,该指示信息可以被携带在如下至少一种消息中:专用信令、系统广播消息、NAS消息、下行链路控制信息(downlink control information,DCI)、媒体介入控制单元(medium access control control element,MAC CE)、寻呼短消息和寻呼消息。
可选的,第一终端设备向第二终端设备发送业务切换请求消息之前,该方法还包括:第一终端设备根据第一终端设备的能力信息确定向第二终端设备发送业务切换请求消息,能力信息用于指示确定向第二终端设备发送业务切换请求消息。当然,该能力信息也可以用于指示确定不向第二终端设备发送业务切换请求消息,当该能力信息用于指示确定不向第二终端设备发送业务切换请求消息时,不执行步骤S203。其中,该能力信息可以是在第一终端设备出厂前被设置好的,即预配置过程配置。
S204、第二终端设备接收来自第一终端设备的业务切换请求消息。
S205、第二终端设备向第一终端设备发送第一响应消息或第二响应消息。
具体地,该步骤为可选的。
具体地,第一响应消息用于指示业务切换请求消息中的所有标识信息所标识的会话或者业务被完全接受,或者第一响应消息用于指示业务切换请求消息中的所有标识信息所标识的会话或者业务被完全拒绝。被完全接受或被完全拒绝可以通过以下三种方式进行表示:第一种方式,被完全接受或被完全拒绝可以通过一条消息包含不同参数进行指示,在一种示例中,第一响应消息包括两个指示字段,分别为指示字段1和指示字段2,其中,指示字段1用于表示业务切换请求消息中的所有标识信息所标识的会话或者业务被完全接受;指示字段2用于表示业务切换请求消息中的所有标识信息所标识的会话或者业务被完全拒绝。第二种方式,被完全接受或被完全拒绝还可以通过一条消息包含相同的参数但取值范围不同来进行区分,在一种示例中,第一响应消息包括一个指示字段,当指示字段为1时,表示业务切换请求消息中的所有标识信息所标识的会话或者业务被完全接受;当指示字段为0时,表示业务切换请求消息中的所有标识信息所标识的会话或者业务被完全拒绝。第三种方式,被完全接受或被完全拒绝还可以通过两条独立的消息进行区分。
具体地,第二响应消息用于指示业务切换请求消息中被接受的至少一种会话或者业务的标识信息,和/或第二响应消息用于指示业务切换请求消息中被拒绝的至少一种会话或者业务的标识信息。也就是说,假设业务切换请求消息包括两种业务的标识信息,分别为业务1和业务2,第二终端设备接受的业务的标识信息为业务1,那么第二响应消息用于指示业务切换请求消息中被接受的业务的标识信息为业务1,和/或第二响应消息用于指示业务切换请求消息中被拒绝的业务的标识信息为业务2。
具体地,第二响应消息还包括被拒绝的至少一种会话或者业务的被拒绝的原因信息和/或被拒绝的时间限制信息。在一种示例中,被拒绝的原因信息可以为被拒绝的会话或业务与第二终端设备自身的会话或业务有冲突,还可以为被拒绝的会话或业务被网络设备拒绝等等。在一种示例中,被拒绝的时间限制信息可以为限定被拒绝的会话或业务被拒绝的时长,即多久之后才允许第一终端设备再次发起被拒绝的会话或业务的业务切换请求消息。
具体地,该第一响应消息或第二响应消息可以为NAS消息或接入层消息,其中,接入层消息又可以为RRC消息、层2消息、层1消息具体参考步骤S203所述,此处不再赘述。
S206、第一终端设备接收来自第二终端设备的第一响应消息或第二响应消息。
具体地,该步骤为可选的。
S207、第二终端设备向网络设备发送业务请求消息。
具体地,该网络设备可以为接入网设备或核心网设备。该业务请求消息包括业务切换请求消息中被接受的会话或业务的标识信息。该被接受的会话或业务的标识信息与第一响应消息或第二响应消息对应,也就是说该被接受的会话或业务的标识信息可以是指,第一响应消息中指示的业务切换请求消息中的所有标识信息所标识的被完全接受会话或者业务的标识信息;也可以是指,第二响应消息中指示的业务切换请求消息中被接受的至少一种会话或者业务的标识信息。
在一种示例中,假设业务切换请求消息包括两种业务标识信息,分别为业务1和业务2,第二终端设备接受的业务的标识信息为业务1,那么第二终端设备向网络设备发送的业务请求消息中包括的业务的标识信息为业务1。在一种示例中,假设业务切换请求消息包括两种业务标识信息,分别为业务3和业务4,第二终端设备接受的业务的标识信息为业务3和业务4,那么第二终端设备向网络设备发送的业务请求消息中包括的业务的标识信息为业务3和业务4。
具体地,该业务请求消息还可以包括第一终端设备的S-TMSI和/或C-RNTI。
S208、网络设备接收来自第二终端设备的业务请求消息。
具体地,该业务请求消息包括业务切换请求消息中被接受的会话或业务的标识信息。
具体地,步骤S205和步骤S206、与步骤S207和步骤S208无时间先后顺序。
当步骤S205和步骤S206发生在步骤S207和步骤S208之前时,步骤S207中的业务切换请求消息中包含的被接受的会话或业务的标识信息、与步骤S205中第一响应消息指示的被完全接受会话或者业务的标识信息或第二响应消息指示包含的被接受的至少一种会话或者业务的标识信息对应;在该情况下,若第二响应消息还包括被拒绝的至少一种会话或者业务的被拒绝的原因信息,该被拒绝的原因信息可以是被拒绝的至少一种会话或业务与第二终端设备自身的会话或业务有冲突。
当步骤S205和步骤S206发生在步骤S207和步骤S208之后时,步骤S205中第一响应消息指示的被完全接受会话或者业务的标识信息或第二响应消息指示包含的被接受的至少一种会话或者业务的标识信息与步骤S208中网络设备接受的会话或业务标识信息对应;在该情况下,若第二响应消息还包括被拒绝的至少一种会话或者业务的被拒绝的原因信息,该被拒绝的原因信息可以是该被拒绝的至少一种会话或业务与第二终端设备自身的会话或业务有冲突、或者该被拒绝的至少一种会话或业务被网络设备拒绝了。
在图2所示的方法中,能够通过第一终端设备向第二终端设备发送业务切换请求消息,相应的,第二终端设备接收来自第一终端设备的业务切换请求消息,然后第二终端设备向网络设备发送业务请求消息的方式,能够解决单独依赖一个终端设备与网络设备之间的通信链路无法保证通信链路中断之后的可靠性,从而实现会话或者业务的连续性,并提高了该会话或者业务通信的可靠性。
上述详细阐述了本申请实施例的方法,下面提供了本申请实施例的装置。
请参见图3,是本申请实施例提供的一种终端设备的结构示意图,如图3所示,该装置可包括:处理器310和存储器320,可选的,该装置还包括收发器330,存储器320用于存储计算机程序或指令321; 收发器330用于接收和发送数据;处理器310用于调用计算机程序或指令执行以下操作:
通过收发器330向第二终端设备发送业务切换请求消息,所述业务切换请求消息用于请求第二终端设备激活所述装置指定的至少一种会话或者业务;所述业务切换请求消息包括所述至少一种会话或者业务的标识信息。
在一种可能的设计中,所述业务切换请求消息还包括所述装置的服务-临时移动用户标识S-TMSI和/或小区无线网络临时标识C-RNTI。
在又一种可能的设计中,所述处理器310,还用于在检测到预设事件的情况下,触发执行向所述第二终端设备发送业务切换请求消息。
在又一种可能的设计中,所述预设事件包括以下至少一项:
所述收发器330,还用于接收到来自上层的第一请求消息,所述上层为非接入层NAS层或者应用层;所述第一请求消息用于指示所述装置进行业务切换;
所述装置发生无线链路失败;
所述装置发生无线链路失败且重建失败;
所述装置在时间窗口T1内发生无线链路失败的次数超过第一阈值;
所述装置连续发生两次无线链路失败的间隔时间小于或者等于一个第二阈值;
所述装置的服务小区测量结果小于或者等于第三阈值;
所述装置的服务小区测量结果小于或者等于第四阈值且持续第一时长;
所述装置处于驻留在任何小区的状态(camp on any cell)或者处于选择任何小区的状态(any cell selection);
所述装置的服务质量QoS测量结果不满足QoS需求;
所述装置的QoS测量结果不满足QoS需求且持续第二时长;
所述装置的计时器T2超时;
所述装置搜索到至少一个可进行业务切换的终端设备;
所述收发器330,还用于接收到来自网络设备的第二请求消息,所述第二请求消息用于指示所述装置进行业务切换;
所述收发器330,还用于接收到来自第二终端设备的第三请求消息,所述第三请求消息用于指示所述装置进行业务切换。
在又一种可能的设计中,所述收发器330,还用于接收来自网络设备的辅助信息,所述辅助信息用于辅助所述装置搜索所述第二终端设备。
在又一种可能的设计中,所述收发器330,还用于接收来自网络设备的第一系统广播消息或第一专用信令,所述第一系统广播消息或第一专用信令用于配置以下至少一项:所述T1、T2、第一阈值、第二阈值、第三阈值、第四阈值、第一时长和第二时长。
在又一种可能的设计中,所述T1、T2、第一阈值、第二阈值、第三阈值、第四阈值、第一时长和第二时长中至少一项为默认取值。
在又一种可能的设计中,所述服务小区测量结果包括:小区级测量结果或者波束级测量结果。
在又一种可能的设计中,所述服务小区测量结果包括如下至少一项:下行参考信号的接收功率RSRP、参考信号接收质量RSRQ和信噪比SINR。
在又一种可能的设计中,所述处理器310,还用于根据开启条件开启所述计时器T2,所述开启条件 包括所述装置的QoS测量结果不满足QoS需求;所述处理器310,还用于根据停止条件停止所述计时器T2,所述停止条件包括在所述计时器T2运行期间,所述装置的QoS测量结果满足QoS需求。
在又一种可能的设计中,所述QoS需求包括如下至少一项:数据传输误码率需求、数据传输时延需求以及数据传输速率需求。
在又一种可能的设计中,所述处理器310,还用于在向所述第二终端设备发送业务切换请求消息之前,建立与所述第二终端设备之间的通信链路。
在又一种可能的设计中,所述收发器330,还用于在建立与所述第二终端设备之间的通信链路之前,接收来自所述网络设备的搜索配置信息,所述搜索配置信息用于辅助所述装置搜索所述第二终端设备。
在又一种可能的设计中,所述搜索配置信息包括以下至少一项:所述第二终端设备的同步信号信息、所述第二终端设备的位置信息、以及所述第二终端设备的标识信息。
在又一种可能的设计中,所述收发器330,还用于接收来自所述网络设备的第二系统广播消息或第二专用信令,所述第二系统广播消息或第二专用信令用于配置所述搜索配置信息。
在又一种可能的设计中,所述收发器330,还用于在向所述第二终端设备发送业务切换请求消息之后,接收所述第二终端设备的第一响应消息,所述第一响应消息用于指示所述业务切换请求消息中的所有标识信息所标识的会话或者业务被完全接受,或者所述第一响应消息用于指示所述业务切换请求消息中的所有标识信息所标识的会话或者业务被完全拒绝。
在又一种可能的设计中,所述收发器330,还用于在向所述第二终端设备发送业务切换请求消息之后,接收所述第二终端设备的第二响应消息,所述第二响应消息用于指示所述业务切换请求消息中被接受的至少一种会话或者业务的标识信息,和/或所述第二响应消息用于指示所述业务切换请求消息中被拒绝的至少一种会话或者业务的标识信息。
在又一种可能的设计中,所述第二响应消息还包括所述被拒绝的至少一种会话或者业务的被拒绝的原因信息和/或被拒绝的时间限制信息。
在又一种可能的设计中,所述业务切换请求消息、所述第一响应消息或者所述第二响应消息为NAS消息,或者所述业务切换请求消息、所述第一响应消息或者所述第二响应消息为接入层消息。
在又一种可能的设计中,所述收发器330,还用于在向所述第二终端设备发送业务切换请求消息之前,接收来自所述网络设备的指示信息,所述指示信息用于指示确定向所述第二终端设备发送所述业务切换请求消息。
在又一种可能的设计中,所述指示信息被携带在如下至少一种消息中:专用信令、系统广播消息、NAS消息、下行链路控制信息DCI、媒体接入控制单元MAC CE、寻呼短消息和寻呼消息。
在又一种可能的设计中,所述收发器330,还用于在向所述第二终端设备发送业务切换请求消息之前,根据所述装置的能力信息确定向所述第二终端设备发送所述业务切换请求消息,所述能力信息用于指示确定向所述第二终端设备发送所述业务切换请求消息。
在又一种可能的设计中,所述网络设备为接入网设备或核心网设备。
请参见图3,是本申请实施例提供的一种终端设备的结构示意图,如图3所示,该装置可包括:处理器310和存储器320,可选的,该装置还包括收发器330,存储器320用于存储计算机程序或指令321;收发器330用于接收和发送数据;处理器310用于调用计算机程序或指令执行以下操作:
通过所述收发器330接收来自第一终端设备的业务切换请求消息,所述业务切换请求消息用于所述第一终端设备请求装置激活所述第一终端设备指定的至少一种会话或者业务;所述业务切换请求消息包括所述至少一种会话或者业务的标识信息;
所述收发器330,用于向网络设备发送业务请求消息,所述业务请求消息包括所述业务切换请求消息中被接受的会话或业务的标识信息。
在一种可能的设计中,所述业务切换请求消息还包括所述第一终端设备的服务-临时移动用户标识S-TMSI和/或小区无线网络临时标识C-RNTI。
在又一种可能的设计中,所述业务请求消息包括所述第一终端设备的服务-临时移动用户标识S-TMSI和/或小区无线网络临时标识C-RNTI。
在又一种可能的设计中,所述收发器330,还用于在接收来自第一终端设备的业务切换请求消息之前,向所述第一终端设备发送第三请求消息,所述第三请求消息用于指示所述第一终端设备进行业务切换。
在又一种可能的设计中,所述收发器330,还用于在接收来自第一终端设备的业务切换请求消息之后,向所述第一终端设备发送第一响应消息,所述第一响应消息用于指示所述业务切换请求消息中的所有标识信息所标识的会话或者业务被完全接受,或者所述第一响应消息用于指示所述业务切换请求消息中的所有标识信息所标识的会话或者业务被完全拒绝。
在又一种可能的设计中,所述收发器330,还用于在接收来自第一终端设备的业务切换请求消息之后,向所述第一终端设备发送第二响应消息,所述第二响应消息用于指示所述业务切换请求消息中被接受的至少一种会话或者业务的标识信息,和/或所述第二响应消息用于指示所述业务切换请求消息中被拒绝的至少一种会话或者业务的标识信息。
在又一种可能的设计中,所述第二响应消息还包括所述被拒绝的至少一种会话或者业务的被拒绝的原因信息和/或被拒绝的时间限制信息。
在又一种可能的设计中,所述业务切换请求消息、所述第一响应消息或者所述第二响应消息为NAS消息,或者所述业务切换请求消息、所述第一响应消息或者所述第二响应消息为接入层消息。
请参见图4,是本申请实施例提供的一种网络设备的结构示意图,如图4所示,该装置可包括:处理器410和存储器420,可选的,该装置还包括收发器430,存储器420用于存储计算机程序或指令421;收发器430用于接收和发送数据;处理器410用于调用计算机程序或指令执行以下操作:
通过收发器430接收来自第二终端设备的业务请求消息,所述业务请求消息包括业务切换请求消息中被接受的会话或业务的标识信息,所述业务切换请求消息是由第一终端设备发送给所述第二终端设备的,所述业务切换请求消息用于所述第一终端设备请求所述第二终端设备激活所述第一终端设备指定的至少一种会话或者业务;所述业务切换请求消息包括所述至少一种会话或者业务的标识信息。
在一种可能的设计中,所述业务请求消息还包括所述第一终端设备的服务-临时移动用户标识S-TMSI和/或小区无线网络临时标识C-RNTI。
在又一种可能的设计中,所述收发器430,还用于在接收来自所述第二终端设备的业务请求消息之前,向所述第一终端设备发送搜索配置信息,所述搜索配置信息用于辅助所述第一终端设备搜索所述第二终端设备。
在又一种可能的设计中,所述搜索配置信息包括以下至少一项:所述第二终端设备的同步信号信息、 所述第二终端设备的位置信息、以及所述第二终端设备的标识信息。
在又一种可能的设计中,所述收发器430,还用于在向所述第一终端设备发送第二系统广播消息或第二专用信令,所述第二系统广播消息或第二专用信令用于配置所述搜索配置信息。
在又一种可能的设计中,所述收发器430,还用于在接收来自第二终端设备的业务请求消息之前,向所述第一终端设备发送第二请求消息,所述第二请求消息用于指示所述第一终端设备进行业务切换。
在又一种可能的设计中,所述收发器430,还用于在接收来自第二终端设备的业务请求消息之前,向所述第一终端设备发送指示信息,所述指示信息用于指示确定向所述第二终端设备发送所述业务切换请求消息。
在又一种可能的设计中,所述指示信息被携带在如下至少一种消息中:专用信令、系统广播消息、NAS消息、下行链路控制信息DCI、媒体接入控制单元MAC CE、寻呼短消息和寻呼消息。
在又一种可能的设计中,所述装置为接入网设备或核心网设备。
请参见图5,图5示出了上述实施例中所涉及的一种终端设备的另一种可能的结构示意图。参阅图5所示,该装置可包括:通信单元501和处理单元502。其中,这些单元可以执行上述方法示例中第一终端设备的相应功能。处理单元502用于对第一终端设备的动作进行控制管理,例如,处理单元502用于支持第一终端设备执行图2中的步骤201,和/或用于本文所描述的技术的其它过程。通信单元501可用于支持第一终端设备与其他设备的通信,例如与第二终端设备、网络设备之间的通信。
其中,处理单元502可以是处理器或控制器,例如可以是中央处理器(Central Processing Unit,CPU),通用处理器,数字信号处理器(Digital Signal Processor,DSP),专用集成电路(Application-Specific Integrated Circuit,ASIC),现场可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框,模块和电路。所述处理器也可以是实现计算功能的组合,例如包含一个或多个微处理器组合,DSP和微处理器的组合等等。通信单元501可以是收发器、收发电路、射频芯片等。
通信单元501,用于向第二终端设备发送业务切换请求消息,所述业务切换请求消息用于请求第二终端设备激活所述装置指定的至少一种会话或者业务;所述业务切换请求消息包括所述至少一种会话或者业务的标识信息。
在一种可能的设计中,所述业务切换请求消息还包括所述第一终端设备的服务-临时移动用户标识S-TMSI和/或小区无线网络临时标识C-RNTI。
在又一种可能的设计中,所述处理单元502,还用于在检测到预设事件的情况下,触发执行所述通信单元向所述第二终端设备发送业务切换请求消息。
在又一种可能的设计中,所述预设事件包括以下至少一项:
所述通信单元501,用于接收到来自上层的第一请求消息,所述上层为非接入层NAS层或者应用层;所述第一请求消息用于指示所述装置进行业务切换;
所述装置发生无线链路失败;
所述装置发生无线链路失败且重建失败;
所述装置在时间窗口T1内发生无线链路失败的次数超过第一阈值;
所述装置连续发生两次无线链路失败的间隔时间小于或者等于一个第二阈值;
所述装置的服务小区测量结果小于或者等于第三阈值;
所述装置的服务小区测量结果小于或者等于第四阈值且持续第一时长;
所述装置处于驻留在任何小区的状态(camp on any cell)或者处于选择任何小区的状态(any cell selection);
所述装置的服务质量QoS测量结果不满足QoS需求;
所述装置的QoS测量结果不满足QoS需求且持续第二时长;
所述装置的计时器T2超时;
所述装置搜索到至少一个可进行业务切换的终端设备;
所述通信单元501,用于接收到来自网络设备的第二请求消息,所述第二请求消息用于指示所述装置进行业务切换;
所述通信单元501,用于接收到来自第二终端设备的第三请求消息,所述第三请求消息用于指示所述装置进行业务切换。
在又一种可能的设计中,所述通信单元501,还用于接收来自网络设备的辅助信息,所述辅助信息用于辅助所述装置搜索所述第二终端设备。
在又一种可能的设计中,所述通信单元501,还用于接收来自网络设备的第一系统广播消息或第一专用信令,所述第一系统广播消息或第一专用信令用于配置以下至少一项:所述T1、T2、第一阈值、第二阈值、第三阈值、第四阈值、第一时长和第二时长。
在又一种可能的设计中,所述T1、T2、第一阈值、第二阈值、第三阈值、第四阈值、第一时长和第二时长中至少一项为默认取值。
在又一种可能的设计中,所述服务小区测量结果包括:小区级测量结果或者波束级测量结果。
在又一种可能的设计中,所述服务小区测量结果包括如下至少一项:下行参考信号的接收功率RSRP、参考信号接收质量RSRQ和信噪比SINR。
在又一种可能的设计中,所述处理单元502,还用于根据开启条件开启所述计时器T2,所述开启条件包括所述装置的QoS测量结果不满足QoS需求;所述处理单元502,还用于根据停止条件停止所述计时器T2,所述停止条件包括在所述计时器T2运行期间,所述装置的QoS测量结果满足QoS需求。
在又一种可能的设计中,所述QoS需求包括如下至少一项:数据传输误码率需求、数据传输时延需求以及数据传输速率需求。
在又一种可能的设计中,所述处理单元502,还用于在向所述第二终端设备发送业务切换请求消息之前,建立与所述第二终端设备之间的通信链路。
在又一种可能的设计中,所述通信单元501,还用于在建立与所述第二终端设备之间的通信链路之前,接收来自所述网络设备的搜索配置信息,所述搜索配置信息用于辅助所述装置搜索所述第二终端设备。
在又一种可能的设计中,所述搜索配置信息包括以下至少一项:所述第二终端设备的同步信号信息、所述第二终端设备的位置信息、以及所述第二终端设备的标识信息。
在又一种可能的设计中,所述通信单元501,还用于接收来自所述网络设备的第二系统广播消息或第二专用信令,所述第二系统广播消息或第二专用信令用于配置所述搜索配置信息。
在又一种可能的设计中,所述通信单元501,还用于在向所述第二终端设备发送业务切换请求消息之后,接收所述第二终端设备的第一响应消息,所述第一响应消息用于指示所述业务切换请求消息中的所有标识信息所标识的会话或者业务被完全接受,或者所述第一响应消息用于指示所述业务切换请求消 息中的所有标识信息所标识的会话或者业务被完全拒绝。
在又一种可能的设计中,所述通信单元501,还用于在向所述第二终端设备发送业务切换请求消息之后,接收所述第二终端设备的第二响应消息,所述第二响应消息用于指示所述业务切换请求消息中被接受的至少一种会话或者业务的标识信息,和/或所述第二响应消息用于指示所述业务切换请求消息中被拒绝的至少一种会话或者业务的标识信息。
在又一种可能的设计中,所述第二响应消息还包括所述被拒绝的至少一种会话或者业务的被拒绝的原因信息和/或被拒绝的时间限制信息。
在又一种可能的设计中,所述业务切换请求消息、所述第一响应消息或者所述第二响应消息为NAS消息,或者所述业务切换请求消息、所述第一响应消息或者所述第二响应消息为接入层消息。
在又一种可能的设计中,所述通信单元501,还用于在向所述第二终端设备发送业务切换请求消息之前,接收来自所述网络设备的指示信息,所述指示信息用于指示确定向所述第二终端设备发送所述业务切换请求消息。
在又一种可能的设计中,所述指示信息被携带在如下至少一种消息中:专用信令、系统广播消息、NAS消息、下行链路控制信息DCI、媒体接入控制单元MAC CE、寻呼短消息和寻呼消息。
在又一种可能的设计中,所述通信单元501,还用于在向所述第二终端设备发送业务切换请求消息之前,根据所述装置的能力信息确定向所述第二终端设备发送所述业务切换请求消息,所述能力信息用于指示确定向所述第二终端设备发送所述业务切换请求消息。
在又一种可能的设计中,所述网络设备为接入网设备或核心网设备。
请参见图5,图5示出了上述实施例中所涉及的一种终端设备的另一种可能的结构示意图。参阅图5所示,该装置可包括:通信单元501和处理单元502。其中,这些单元可以执行上述方法示例中第二终端设备的相应功能。处理单元502用于对第二终端设备的动作进行控制管理。通信单元501可用于支持第二终端设备与其他设备的通信,例如与第一终端设备、网络设备之间的通信。
其中,处理单元502可以是处理器或控制器,例如可以是中央处理器(Central Processing Unit,CPU),通用处理器,数字信号处理器(Digital Signal Processor,DSP),专用集成电路(Application-Specific Integrated Circuit,ASIC),现场可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框,模块和电路。所述处理器也可以是实现计算功能的组合,例如包含一个或多个微处理器组合,DSP和微处理器的组合等等。通信单元501可以是收发器、收发电路、射频芯片等。
所述通信单元501,用于接收来自第一终端设备的业务切换请求消息,所述业务切换请求消息用于所述第一终端设备请求所述装置激活所述第一终端设备指定的至少一种会话或者业务;所述业务切换请求消息包括所述至少一种会话或者业务的标识信息;
所述通信单元501,还用于向网络设备发送业务请求消息,所述业务请求消息包括所述业务切换请求消息中被接受的会话或业务的标识信息。
在一种可能的设计中,所述业务切换请求消息还包括所述第一终端设备的服务-临时移动用户标识S-TMSI和/或小区无线网络临时标识C-RNTI。
在又一种可能的设计中,所述业务请求消息包括所述第一终端设备的服务-临时移动用户标识S-TMSI和/或小区无线网络临时标识C-RNTI。
在又一种可能的设计中,所述通信单元501,还用于在接收来自第一终端设备的业务切换请求消息之前,向所述第一终端设备发送第三请求消息,所述第三请求消息用于指示所述第一终端设备进行业务切换。
在又一种可能的设计中,所述通信单元501,还用于在接收来自第一终端设备的业务切换请求消息之后,向所述第一终端设备发送第一响应消息,所述第一响应消息用于指示所述业务切换请求消息中的所有标识信息所标识的会话或者业务被完全接受,或者所述第一响应消息用于指示所述业务切换请求消息中的所有标识信息所标识的会话或者业务被完全拒绝。
在又一种可能的设计中,所述通信单元501,还用于在接收来自第一终端设备的业务切换请求消息之后,向所述第一终端设备发送第二响应消息,所述第二响应消息用于指示所述业务切换请求消息中被接受的至少一种会话或者业务的标识信息,和/或所述第二响应消息用于指示所述业务切换请求消息中被拒绝的至少一种会话或者业务的标识信息。
在又一种可能的设计中,所述第二响应消息还包括所述被拒绝的至少一种会话或者业务的被拒绝的原因信息和/或被拒绝的时间限制信息。
在又一种可能的设计中,所述业务切换请求消息、所述第一响应消息或者所述第二响应消息为NAS消息,或者所述业务切换请求消息、所述第一响应消息或者所述第二响应消息为接入层消息。
请参见图6,图6示出了上述实施例中所涉及的一种网络设备的另一种可能的结构示意图。参阅图6所示,该装置可包括:通信单元601和处理单元602。其中,这些单元可以执行上述方法示例中网络设备的相应功能。处理单元602用于对网络设备的动作进行控制管理。通信单元601可用于支持网络设备与其他设备的通信,例如与第一终端设备、第二终端设备之间的通信。
其中,处理单元602可以是处理器或控制器,例如可以是中央处理器(Central Processing Unit,CPU),通用处理器,数字信号处理器(Digital Signal Processor,DSP),专用集成电路(Application-Specific Integrated Circuit,ASIC),现场可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框,模块和电路。所述处理器也可以是实现计算功能的组合,例如包含一个或多个微处理器组合,DSP和微处理器的组合等等。通信单元601可以是收发器、收发电路、射频芯片等。
所述通信单元601,用于接收来自第二终端设备的业务请求消息,所述业务请求消息包括业务切换请求消息中被接受的会话或业务的标识信息,所述业务切换请求消息是由第一终端设备发送给所述第二终端设备的,所述业务切换请求消息用于所述第一终端设备请求所述第二终端设备激活所述第一终端设备指定的至少一种会话或者业务;所述业务切换请求消息包括所述至少一种会话或者业务的标识信息。
在又一种可能的设计中,所述业务请求消息还包括所述第一终端设备的服务-临时移动用户标识S-TMSI和/或小区无线网络临时标识C-RNTI。
在又一种可能的设计中,所述通信单元601,还用于在接收来自所述第二终端设备的业务请求消息之前,向所述第一终端设备发送搜索配置信息,所述搜索配置信息用于辅助所述第一终端设备搜索所述第二终端设备。
在又一种可能的设计中,所述搜索配置信息包括以下至少一项:所述第二终端设备的同步信号信息、所述第二终端设备的位置信息、以及所述第二终端设备的标识信息。
在又一种可能的设计中,所述通信单元601,还用于向所述第一终端设备发送第二系统广播消息或 第二专用信令,所述第二系统广播消息或第二专用信令用于配置所述搜索配置信息。
在又一种可能的设计中,所述通信单元601,还用于在接收来自第二终端设备的业务请求消息之前,向所述第一终端设备发送第二请求消息,所述第二请求消息用于指示所述第一终端设备进行业务切换。
在又一种可能的设计中,所述通信单元601,还用于在接收来自第二终端设备的业务请求消息之前,向所述第一终端设备发送指示信息,所述指示信息用于指示确定向所述第二终端设备发送所述业务切换请求消息。
在又一种可能的设计中,所述指示信息被携带在如下至少一种消息中:专用信令、系统广播消息、NAS消息、下行链路控制信息DCI、媒体接入控制单元MAC CE、寻呼短消息和寻呼消息。
在又一种可能的设计中,所述装置为接入网设备或核心网设备。
可以理解,本申请实施例中对单元的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。本申请实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
本申请实施例还提供了一种计算机可读存储介质,其中,所述计算机可读存储介质存储用于计算机程序,使其在计算机上运行时,执行如上述方法实施例中第一终端设备、第二终端设备或网络设备所描述的部分或全部步骤。
本申请实施例还提供了一种计算机程序产品,其中,所述计算机程序产品包括计算机程序或指令,使其在计算机上运行时,执行如上述方法实施例中第一终端设备、第二终端设备或网络设备所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
可以理解,本文中涉及的第一、第二、第三以及各种数字编号仅为描述方便进行的区分,并不用来限制本申请实施例的范围。
本领域技术人员应该可以意识到,在上述一个或多个示例中,本申请实施例所描述的功能可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时,全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line,DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如,软盘、硬盘、磁带)、光介质(例如,数字视频光盘(digital video disc,DVD))、或者半导体介质(例如,固态硬盘(solid state disk,SSD))等。

Claims (87)

  1. 一种终端设备间的业务切换的方法,其特征在于,包括:
    第一终端设备向第二终端设备发送业务切换请求消息,所述业务切换请求消息用于请求第二终端设备激活所述第一终端设备指定的至少一种会话或者业务;所述业务切换请求消息包括所述至少一种会话或者业务的标识信息。
  2. 根据权利要求1所述的方法,其特征在于,所述业务切换请求消息还包括所述第一终端设备的服务-临时移动用户标识S-TMSI和/或小区无线网络临时标识C-RNTI。
  3. 根据权利要求1或2所述的方法,其特征在于,所述方法还包括:
    若检测到预设事件,则触发执行所述第一终端设备向所述第二终端设备发送业务切换请求消息。
  4. 根据权利要求3所述的方法,其特征在于,所述预设事件包括以下至少一项:
    所述第一终端设备接收到来自上层的第一请求消息,所述上层为非接入层NAS层或者应用层;所述第一请求消息用于指示所述第一终端设备进行业务切换;
    所述第一终端设备发生无线链路失败;
    所述第一终端设备发生无线链路失败且重建失败;
    所述第一终端设备在时间窗口T1内发生无线链路失败的次数超过第一阈值;
    所述第一终端设备连续发生两次无线链路失败的间隔时间小于或者等于一个第二阈值;
    所述第一终端设备的服务小区测量结果小于或者等于第三阈值;
    所述第一终端设备的服务小区测量结果小于或者等于第四阈值且持续第一时长;
    所述第一终端设备处于驻留在任何小区的状态(camp on any cell)或者处于选择任何小区的状态(any cell selection);
    所述第一终端设备的服务质量QoS测量结果不满足QoS需求;
    所述第一终端设备的QoS测量结果不满足QoS需求且持续第二时长;
    所述第一终端设备的计时器T2超时;
    所述第一终端设备搜索到至少一个可进行业务切换的终端设备;
    所述第一终端设备接收到来自网络设备的第二请求消息,所述第二请求消息用于指示所述第一终端设备进行业务切换;
    所述第一终端设备接收到来自第二终端设备的第三请求消息,所述第三请求消息用于指示所述第一终端设备进行业务切换。
  5. 根据权利要求4所述的方法,其特征在于,所述预设事件包括所述第一终端设备接收到来自网络设备的第二请求消息,所述方法还包括:
    所述第一终端设备接收来自网络设备的辅助信息,所述辅助信息用于辅助所述第一终端设备搜索所述第二终端设备。
  6. 根据权利要求4或5所述的方法,其特征在于,所述方法还包括:
    所述第一终端设备接收来自网络设备的第一系统广播消息或第一专用信令,所述第一系统广播消息或第一专用信令用于配置以下至少一项:所述T1、T2、第一阈值、第二阈值、第三阈值、第四阈值、第一时长和第二时长。
  7. 根据权利要求4或5所述的方法,其特征在于,所述T1、T2、第一阈值、第二阈值、第三阈值、第四阈值、第一时长和第二时长中至少一项为默认取值。
  8. 根据权利要求4-7任一项所述的方法,其特征在于,所述服务小区测量结果包括:小区级测量结果或者波束级测量结果。
  9. 根据权利要求4-8任一项所述的方法,其特征在于,所述服务小区测量结果包括如下至少一项:
    下行参考信号的接收功率RSRP、参考信号接收质量RSRQ和信噪比SINR。
  10. 根据权利要求4-9任一项所述的方法,其特征在于,所述预设事件包括:所述第一终端设备的计时器T2超时,所述方法还包括:
    所述第一终端设备根据开启条件开启所述计时器T2,所述开启条件包括所述第一终端设备的QoS测量结果不满足QoS需求;
    所述第一终端设备根据停止条件停止所述计时器T2,所述停止条件包括在所述计时器T2运行期间,所述第一终端设备的QoS测量结果满足QoS需求。
  11. 根据权利要求4-10任一项所述的方法,其特征在于,所述QoS需求包括如下至少一项:
    数据传输误码率需求、数据传输时延需求以及数据传输速率需求。
  12. 根据权利要求1-11任一项所述的方法,其特征在于,所述第一终端设备向所述第二终端设备发送业务切换请求消息之前,所述方法还包括:
    所述第一终端设备建立与所述第二终端设备之间的通信链路。
  13. 根据权利要求12所述的方法,其特征在于,所述第一终端设备建立与所述第二终端设备之间的通信链路之前,所述方法还包括:
    所述第一终端设备接收来自所述网络设备的搜索配置信息,所述搜索配置信息用于辅助所述第一终端设备搜索所述第二终端设备。
  14. 根据权利要求13所述的方法,其特征在于,所述搜索配置信息包括以下至少一项:
    所述第二终端设备的同步信号信息、所述第二终端设备的位置信息、以及所述第二终端设备的标识信息。
  15. 根据权利要求13或14所述的方法,其特征在于,所述方法还包括:
    所述第一终端设备接收来自所述网络设备的第二系统广播消息或第二专用信令,所述第二系统广播 消息或第二专用信令用于配置所述搜索配置信息。
  16. 根据权利要求1-15任一项所述的方法,其特征在于,所述第一终端设备向所述第二终端设备发送业务切换请求消息之后,所述方法还包括:
    所述第一终端设备接收所述第二终端设备的第一响应消息,所述第一响应消息用于指示所述业务切换请求消息中的所有标识信息所标识的会话或者业务被完全接受,或者所述第一响应消息用于指示所述业务切换请求消息中的所有标识信息所标识的会话或者业务被完全拒绝。
  17. 根据权利要求1-15任一项所述的方法,其特征在于,所述第一终端设备向所述第二终端设备发送业务切换请求消息之后,所述方法还包括:
    所述第一终端设备接收所述第二终端设备的第二响应消息,所述第二响应消息用于指示所述业务切换请求消息中被接受的至少一种会话或者业务的标识信息,和/或所述第二响应消息用于指示所述业务切换请求消息中被拒绝的至少一种会话或者业务的标识信息。
  18. 根据权利要求17所述的方法,其特征在于,所述第二响应消息还包括所述被拒绝的至少一种会话或者业务的被拒绝的原因信息和/或被拒绝的时间限制信息。
  19. 根据权利要求1-18任一项所述的方法,其特征在于,
    所述业务切换请求消息、所述第一响应消息或者所述第二响应消息为NAS消息,或者所述业务切换请求消息、所述第一响应消息或者所述第二响应消息为接入层消息。
  20. 根据权利要求1-19任一项所述的方法,其特征在于,所述第一终端设备向所述第二终端设备发送业务切换请求消息之前,所述方法还包括:
    所述第一终端设备接收来自所述网络设备的指示信息,所述指示信息用于指示确定向所述第二终端设备发送所述业务切换请求消息。
  21. 根据权利要求20所述的方法,其特征在于,所述指示信息被携带在如下至少一种消息中:
    专用信令、系统广播消息、NAS消息、下行链路控制信息DCI、媒体接入控制单元MAC CE、寻呼短消息和寻呼消息。
  22. 根据权利要求1-19任一项所述的方法,其特征在于,所述第一终端设备向所述第二终端设备发送业务切换请求消息之前,所述方法还包括:
    所述第一终端设备根据所述第一终端设备的能力信息确定向所述第二终端设备发送所述业务切换请求消息,所述能力信息用于指示确定向所述第二终端设备发送所述业务切换请求消息。
  23. 根据权利要求1-22任一项所述的方法,其特征在于,所述网络设备为接入网设备或核心网设备。
  24. 一种终端设备间的业务切换的方法,其特征在于,包括:
    第二终端设备接收来自第一终端设备的业务切换请求消息,所述业务切换请求消息用于所述第一终端设备请求第二终端设备激活所述第一终端设备指定的至少一种会话或者业务;所述业务切换请求消息包括所述至少一种会话或者业务的标识信息;
    所述第二终端设备向网络设备发送业务请求消息,所述业务请求消息包括所述业务切换请求消息中被接受的会话或业务的标识信息。
  25. 根据权利要求24所述的方法,其特征在于,所述业务切换请求消息还包括所述第一终端设备的服务-临时移动用户标识S-TMSI和/或小区无线网络临时标识C-RNTI。
  26. 根据权利要求24或25所述的方法,其特征在于,所述业务请求消息包括所述第一终端设备的服务-临时移动用户标识S-TMSI和/或小区无线网络临时标识C-RNTI。
  27. 根据权利要求24-26任一项所述的方法,其特征在于,所述第二终端设备接收来自第一终端设备的业务切换请求消息之前,所述方法还包括:
    所述第二终端设备向所述第一终端设备发送第三请求消息,所述第三请求消息用于指示所述第一终端设备进行业务切换。
  28. 根据权利要求24-27任一项所述的方法,其特征在于,所述第二终端设备接收来自第一终端设备的业务切换请求消息之后,所述方法还包括:
    所述第二终端设备向所述第一终端设备发送第一响应消息,所述第一响应消息用于指示所述业务切换请求消息中的所有标识信息所标识的会话或者业务被完全接受,或者所述第一响应消息用于指示所述业务切换请求消息中的所有标识信息所标识的会话或者业务被完全拒绝。
  29. 根据权利要求24-27任一项所述的方法,其特征在于,所述第二终端设备接收来自第一终端设备的业务切换请求消息之后,所述方法还包括:
    所述第二终端设备向所述第一终端设备发送第二响应消息,所述第二响应消息用于指示所述业务切换请求消息中被接受的至少一种会话或者业务的标识信息,和/或所述第二响应消息用于指示所述业务切换请求消息中被拒绝的至少一种会话或者业务的标识信息。
  30. 根据权利要求29所述的方法,其特征在于,所述第二响应消息还包括所述被拒绝的至少一种会话或者业务的被拒绝的原因信息和/或被拒绝的时间限制信息。
  31. 根据权利要求24-30任一项所述的方法,其特征在于,
    所述业务切换请求消息、所述第一响应消息或者所述第二响应消息为NAS消息,或者所述业务切换请求消息、所述第一响应消息或者所述第二响应消息为接入层消息。
  32. 一种终端设备间的业务切换的方法,其特征在于,包括:
    网络设备接收来自第二终端设备的业务请求消息,所述业务请求消息包括业务切换请求消息中被接受的会话或业务的标识信息,所述业务切换请求消息是由第一终端设备发送给所述第二终端设备的,所述业务切换请求消息用于所述第一终端设备请求所述第二终端设备激活所述第一终端设备指定的至少一种会话或者业务;所述业务切换请求消息包括所述至少一种会话或者业务的标识信息。
  33. 根据权利要求32所述的方法,其特征在于,所述业务请求消息还包括所述第一终端设备的服务-临时移动用户标识S-TMSI和/或小区无线网络临时标识C-RNTI。
  34. 根据权利要求32或33所述的方法,其特征在于,所述网络设备接收来自所述第二终端设备的业务请求消息之前,所述方法还包括:
    所述网络设备向所述第一终端设备发送搜索配置信息,所述搜索配置信息用于辅助所述第一终端设备搜索所述第二终端设备。
  35. 根据权利要求34所述的方法,其特征在于,所述搜索配置信息包括以下至少一项:
    所述第二终端设备的同步信号信息、所述第二终端设备的位置信息、以及所述第二终端设备的标识信息。
  36. 根据权利要求34或35所述的方法,其特征在于,所述方法还包括:
    所述网络设备向所述第一终端设备发送第二系统广播消息或第二专用信令,所述第二系统广播消息或第二专用信令用于配置所述搜索配置信息。
  37. 根据权利要求32-36任一项所述的方法,其特征在于,所述网络设备接收来自第二终端设备的业务请求消息之前,所述方法还包括:
    所述网络设备向所述第一终端设备发送第二请求消息,所述第二请求消息用于指示所述第一终端设备进行业务切换。
  38. 根据权利要求32-37任一项所述的方法,其特征在于,所述网络设备接收来自第二终端设备的业务请求消息之前,所述方法还包括:
    所述网络设备向所述第一终端设备发送指示信息,所述指示信息用于指示确定向所述第二终端设备发送所述业务切换请求消息。
  39. 根据权利要求38所述的方法,其特征在于,所述指示信息被携带在如下至少一种消息中:
    专用信令、系统广播消息、NAS消息、下行链路控制信息DCI、媒体接入控制单元MAC CE、寻呼短消息和寻呼消息。
  40. 根据权利要求32-39任一项所述的方法,其特征在于,所述网络设备为接入网设备或核心网设备。
  41. 一种终端设备,包括通信单元和处理单元,其特征在于,
    所述通信单元,用于向第二终端设备发送业务切换请求消息,所述业务切换请求消息用于请求第二终端设备激活所述装置指定的至少一种会话或者业务;所述业务切换请求消息包括所述至少一种会话或者业务的标识信息。
  42. 根据权利要求41所述的装置,其特征在于,所述业务切换请求消息还包括所述第一终端设备的服务-临时移动用户标识S-TMSI和/或小区无线网络临时标识C-RNTI。
  43. 根据权利要求41或42所述的装置,其特征在于,
    所述处理单元,用于在检测到预设事件的情况下,触发执行所述通信单元向所述第二终端设备发送业务切换请求消息。
  44. 根据权利要求43所述的装置,其特征在于,所述预设事件包括以下至少一项:
    所述通信单元,用于接收到来自上层的第一请求消息,所述上层为非接入层NAS层或者应用层;所述第一请求消息用于指示所述装置进行业务切换;
    所述装置发生无线链路失败;
    所述装置发生无线链路失败且重建失败;
    所述装置在时间窗口T1内发生无线链路失败的次数超过第一阈值;
    所述装置连续发生两次无线链路失败的间隔时间小于或者等于一个第二阈值;
    所述装置的服务小区测量结果小于或者等于第三阈值;
    所述装置的服务小区测量结果小于或者等于第四阈值且持续第一时长;
    所述装置处于驻留在任何小区的状态(camp on any cell)或者处于选择任何小区的状态(any cell selection);
    所述装置的服务质量QoS测量结果不满足QoS需求;
    所述装置的QoS测量结果不满足QoS需求且持续第二时长;
    所述装置的计时器T2超时;
    所述装置搜索到至少一个可进行业务切换的终端设备;
    所述通信单元,用于接收到来自网络设备的第二请求消息,所述第二请求消息用于指示所述装置进行业务切换;
    所述通信单元,用于接收到来自第二终端设备的第三请求消息,所述第三请求消息用于指示所述装置进行业务切换。
  45. 根据权利要求44所述的装置,其特征在于,
    所述通信单元,还用于接收来自网络设备的辅助信息,所述辅助信息用于辅助所述装置搜索所述第二终端设备。
  46. 根据权利要求44或45所述的装置,其特征在于,
    所述通信单元,还用于接收来自网络设备的第一系统广播消息或第一专用信令,所述第一系统广播 消息或第一专用信令用于配置以下至少一项:所述T1、T2、第一阈值、第二阈值、第三阈值、第四阈值、第一时长和第二时长。
  47. 根据权利要求44或45所述的装置,其特征在于,所述T1、T2、第一阈值、第二阈值、第三阈值、第四阈值、第一时长和第二时长中至少一项为默认取值。
  48. 根据权利要求44-47任一项所述的装置,其特征在于,所述服务小区测量结果包括:小区级测量结果或者波束级测量结果。
  49. 根据权利要求44-48任一项所述的装置,其特征在于,所述服务小区测量结果包括如下至少一项:
    下行参考信号的接收功率RSRP、参考信号接收质量RSRQ和信噪比SINR。
  50. 根据权利要求44-49任一项所述的装置,其特征在于,
    所述处理单元,还用于根据开启条件开启所述计时器T2,所述开启条件包括所述装置的QoS测量结果不满足QoS需求;
    所述处理单元,还用于根据停止条件停止所述计时器T2,所述停止条件包括在所述计时器T2运行期间,所述装置的QoS测量结果满足QoS需求。
  51. 根据权利要求44-50任一项所述的装置,其特征在于,所述QoS需求包括如下至少一项:
    数据传输误码率需求、数据传输时延需求以及数据传输速率需求。
  52. 根据权利要求41-51任一项所述的装置,其特征在于,
    所述处理单元,还用于在向所述第二终端设备发送业务切换请求消息之前,建立与所述第二终端设备之间的通信链路。
  53. 根据权利要求52所述的装置,其特征在于,
    所述通信单元,还用于在建立与所述第二终端设备之间的通信链路之前,接收来自所述网络设备的搜索配置信息,所述搜索配置信息用于辅助所述装置搜索所述第二终端设备。
  54. 根据权利要求53所述的装置,其特征在于,所述搜索配置信息包括以下至少一项:
    所述第二终端设备的同步信号信息、所述第二终端设备的位置信息、以及所述第二终端设备的标识信息。
  55. 根据权利要求53或54所述的装置,其特征在于,
    所述通信单元,还用于接收来自所述网络设备的第二系统广播消息或第二专用信令,所述第二系统广播消息或第二专用信令用于配置所述搜索配置信息。
  56. 根据权利要求41-55任一项所述的装置,其特征在于,
    所述通信单元,还用于在向所述第二终端设备发送业务切换请求消息之后,接收所述第二终端设备的第一响应消息,所述第一响应消息用于指示所述业务切换请求消息中的所有标识信息所标识的会话或者业务被完全接受,或者所述第一响应消息用于指示所述业务切换请求消息中的所有标识信息所标识的会话或者业务被完全拒绝。
  57. 根据权利要求41-55任一项所述的装置,其特征在于,
    所述通信单元,还用于在向所述第二终端设备发送业务切换请求消息之后,接收所述第二终端设备的第二响应消息,所述第二响应消息用于指示所述业务切换请求消息中被接受的至少一种会话或者业务的标识信息,和/或所述第二响应消息用于指示所述业务切换请求消息中被拒绝的至少一种会话或者业务的标识信息。
  58. 根据权利要求57所述的装置,其特征在于,所述第二响应消息还包括所述被拒绝的至少一种会话或者业务的被拒绝的原因信息和/或被拒绝的时间限制信息。
  59. 根据权利要求41-58任一项所述的装置,其特征在于,
    所述业务切换请求消息、所述第一响应消息或者所述第二响应消息为NAS消息,或者所述业务切换请求消息、所述第一响应消息或者所述第二响应消息为接入层消息。
  60. 根据权利要求41-59任一项所述的装置,其特征在于,
    所述通信单元,还用于在向所述第二终端设备发送业务切换请求消息之前,接收来自所述网络设备的指示信息,所述指示信息用于指示确定向所述第二终端设备发送所述业务切换请求消息。
  61. 根据权利要求60所述的装置,其特征在于,所述指示信息被携带在如下至少一种消息中:
    专用信令、系统广播消息、NAS消息、下行链路控制信息DCI、媒体接入控制单元MAC CE、寻呼短消息和寻呼消息。
  62. 根据权利要求41-59任一项所述的装置,其特征在于,
    所述通信单元,还用于在向所述第二终端设备发送业务切换请求消息之前,根据所述装置的能力信息确定向所述第二终端设备发送所述业务切换请求消息,所述能力信息用于指示确定向所述第二终端设备发送所述业务切换请求消息。
  63. 根据权利要求41-62任一项所述的装置,其特征在于,所述网络设备为接入网设备或核心网设备。
  64. 一种终端设备,包括通信单元和处理单元,其特征在于,
    所述通信单元,用于接收来自第一终端设备的业务切换请求消息,所述业务切换请求消息用于所述第一终端设备请求所述装置激活所述第一终端设备指定的至少一种会话或者业务;所述业务切换请求消 息包括所述至少一种会话或者业务的标识信息;
    所述通信单元,还用于向网络设备发送业务请求消息,所述业务请求消息包括所述业务切换请求消息中被接受的会话或业务的标识信息。
  65. 根据权利要求64所述的装置,其特征在于,所述业务切换请求消息还包括所述第一终端设备的服务-临时移动用户标识S-TMSI和/或小区无线网络临时标识C-RNTI。
  66. 根据权利要求64或65所述的方法,其特征在于,所述业务请求消息包括所述第一终端设备的服务-临时移动用户标识S-TMSI和/或小区无线网络临时标识C-RNTI。
  67. 根据权利要求64-66任一项所述的装置,其特征在于,
    所述通信单元,还用于在接收来自第一终端设备的业务切换请求消息之前,向所述第一终端设备发送第三请求消息,所述第三请求消息用于指示所述第一终端设备进行业务切换。
  68. 根据权利要求64-67任一项所述的装置,其特征在于,
    所述通信单元,还用于在接收来自第一终端设备的业务切换请求消息之后,向所述第一终端设备发送第一响应消息,所述第一响应消息用于指示所述业务切换请求消息中的所有标识信息所标识的会话或者业务被完全接受,或者所述第一响应消息用于指示所述业务切换请求消息中的所有标识信息所标识的会话或者业务被完全拒绝。
  69. 根据权利要求64-67任一项所述的装置,其特征在于,
    所述通信单元,还用于在接收来自第一终端设备的业务切换请求消息之后,向所述第一终端设备发送第二响应消息,所述第二响应消息用于指示所述业务切换请求消息中被接受的至少一种会话或者业务的标识信息,和/或所述第二响应消息用于指示所述业务切换请求消息中被拒绝的至少一种会话或者业务的标识信息。
  70. 根据权利要求69所述的装置,其特征在于,所述第二响应消息还包括所述被拒绝的至少一种会话或者业务的被拒绝的原因信息和/或被拒绝的时间限制信息。
  71. 根据权利要求64-70任一项所述的装置,其特征在于,
    所述业务切换请求消息、所述第一响应消息或者所述第二响应消息为NAS消息,或者所述业务切换请求消息、所述第一响应消息或者所述第二响应消息为接入层消息。
  72. 一种网络设备,包括,通信单元和处理单元,其特征在于,
    所述通信单元,用于接收来自第二终端设备的业务请求消息,所述业务请求消息包括业务切换请求消息中被接受的会话或业务的标识信息,所述业务切换请求消息是由第一终端设备发送给所述第二终端设备的,所述业务切换请求消息用于所述第一终端设备请求所述第二终端设备激活所述第一终端设备指定的至少一种会话或者业务;所述业务切换请求消息包括所述至少一种会话或者业务的标识信息。
  73. 根据权利要求72所述的装置,其特征在于,所述业务请求消息还包括所述第一终端设备的服务-临时移动用户标识S-TMSI和/或小区无线网络临时标识C-RNTI。
  74. 根据权利要求72或73所述的装置,其特征在于,
    所述通信单元,还用于在接收来自所述第二终端设备的业务请求消息之前,向所述第一终端设备发送搜索配置信息,所述搜索配置信息用于辅助所述第一终端设备搜索所述第二终端设备。
  75. 根据权利要求74所述的装置,其特征在于,所述搜索配置信息包括以下至少一项:
    所述第二终端设备的同步信号信息、所述第二终端设备的位置信息、以及所述第二终端设备的标识信息。
  76. 根据权利要求74或75所述的装置,其特征在于,
    所述通信单元,还用于向所述第一终端设备发送第二系统广播消息或第二专用信令,所述第二系统广播消息或第二专用信令用于配置所述搜索配置信息。
  77. 根据权利要求72-76任一项所述的装置,其特征在于,
    所述通信单元,还用于在接收来自第二终端设备的业务请求消息之前,向所述第一终端设备发送第二请求消息,所述第二请求消息用于指示所述第一终端设备进行业务切换。
  78. 根据权利要求72-77任一项所述的装置,其特征在于,
    所述通信单元,还用于在接收来自第二终端设备的业务请求消息之前,向所述第一终端设备发送指示信息,所述指示信息用于指示确定向所述第二终端设备发送所述业务切换请求消息。
  79. 根据权利要求78所述的装置,其特征在于,所述指示信息被携带在如下至少一种消息中:
    专用信令、系统广播消息、NAS消息、下行链路控制信息DCI、媒体接入控制单元MAC CE、寻呼短消息和寻呼消息。
  80. 根据权利要求72-79任一项所述的装置,其特征在于,所述装置为接入网设备或核心网设备。
  81. 一种终端设备,其特征在于,包括处理器和存储器,所述处理器用于调用所述存储器中存储的计算机程序或指令,以使得实现如权利要求1至23中任一项所述的方法。
  82. 一种终端设备,其特征在于,包括处理器和存储器,所述处理器用于调用所述存储器中存储的计算机程序或指令,以使得实现如权利要求24至31中任一项所述的方法。
  83. 一种网络设备,其特征在于,包括处理器和存储器,所述处理器用于调用所述存储器中存储的计算机程序或指令,以使得实现如权利要求32至40中任一项所述的方法。
  84. 一种芯片,其特征在于,所述芯片包括处理器和存储器,所述处理器用于调用所述存储器中存储的计算机程序或指令,以使得实现如权利要求1至40中任一项所述的方法。
  85. 一种计算机程序产品,其特征在于,所述计算机程序产品中包括计算机程序或指令,当所述计算机程序或指令在计算机上运行时,以使得实现如权利要求1-40任一项所述的方法。
  86. 一种计算机程序,其特征在于,当所述计算机程序在计算机上运行时,以使得实现如权利要求1-40任一项所述的方法。
  87. 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质存储有计算机程序或指令,所述计算机程序或指令使得计算机执行如权利要求1至40任一项所述的方法。
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