WO2014161288A1 - 多模双待的移动终端及其网络注册方法 - Google Patents

多模双待的移动终端及其网络注册方法 Download PDF

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Publication number
WO2014161288A1
WO2014161288A1 PCT/CN2013/084930 CN2013084930W WO2014161288A1 WO 2014161288 A1 WO2014161288 A1 WO 2014161288A1 CN 2013084930 W CN2013084930 W CN 2013084930W WO 2014161288 A1 WO2014161288 A1 WO 2014161288A1
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Prior art keywords
network
layer
domain
lte
mobile terminal
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PCT/CN2013/084930
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English (en)
French (fr)
Inventor
陈扬
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中兴通讯股份有限公司
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Publication of WO2014161288A1 publication Critical patent/WO2014161288A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/14Reselecting a network or an air interface
    • H04W36/144Reselecting a network or an air interface over a different radio air interface technology
    • H04W36/1443Reselecting a network or an air interface over a different radio air interface technology between licensed networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W60/00Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/005Multiple registrations, e.g. multihoming
    • 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
    • H04W8/183Processing at user equipment or user record carrier
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/06Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications, and in particular to a multimode dual standby mobile terminal and a network registration method thereof.
  • GSM Global System for Mobile Communication
  • TD-SCDMA Time Division-Synchronous Code Division Multiple Access
  • LTE Long Term Evolution
  • PS Packet Switch
  • TD network In addition to normal voice and SMS, users may also perform PS services, such as Internet access, Weibo, WeChat, games, and sending and receiving multimedia messages, which cause the load on the GSM network. Heavier.
  • PS services such as Internet access, Weibo, WeChat, games, and sending and receiving multimedia messages, which cause the load on the GSM network. Heavier.
  • the TD network is not highly utilized, the TD network is not continuous, and the voice service users are relatively poorly perceived. And with the development of communication technology, the construction of LTE network will gradually develop, which will inevitably form TD, GSM,
  • Embodiments of the present invention provide a multimode dual standby mobile terminal.
  • a multimode dual standby mobile terminal including an application and user interface layer module, a single chip protocol module, and a multimode radio physical layer processing module, wherein the single chip protocol module
  • the method includes: a first standby unit, configured to reside in a GSM network, provide a CS domain service by using a GSM network, and provide a PS domain service by using a GSM network after the TD network and the LTE network are lost in coverage; and a second standby unit, setting To reside in a TD network or an LTE network, a PS domain service is provided using a TD network or an LTE network, and is switched between the TD network and the LTE network.
  • the first standby unit is further configured to start the first standby task in the following protocol after the mobile terminal is powered on: GSM-AS layer, MM layer, CC/SS/SMS layer, MMIA layer, SM layer, UMM layer , GMM layer.
  • the second standby unit is further configured to start the second standby task in the following protocol after the mobile terminal is powered on: TD-AS layer, LTE-AS layer, EMM layer, ESM layer, MMIA layer, SM layer, UMM Layer, GMM layer.
  • a network registration method based on the foregoing mobile terminal including: after the mobile terminal is powered on, indicating that the multi-mode radio frequency in the physical layer is enabled; the mobile terminal is in a single-chip protocol.
  • the multimode access layer notifies the respective physical layer to search for cell information, and in the case of successful residing, initiates a CS domain registration procedure to the GSM network, and initiates a PS domain registration procedure to the TD or LTE network.
  • the method further includes: configuring, by the mobile terminal, the physical layer of the GSM network to listen to the CS domain paging, and configuring the physical layer of the TD network or the LTE network to listen to the PS domain paging. .
  • the method further includes at least one of the following: when the mobile terminal receives the CS domain calling service from the CC layer, requesting to establish an RR connection in the GSM network, The CC layer performs a calling process on the CS domain connection in the GSM network; when the mobile terminal receives the PS domain calling service from the SM layer, the mobile terminal requests to establish an RRC connection in the TD network, and the PS layer is connected in the PS domain in the TD network.
  • the RRC connection established by the LTE network sends a request for establishing the DRB to the network side, allocates the DRB by the network side, and continues the PDN exclusive bearer of the PS domain.
  • the foregoing method further includes at least one of the following: after the physical layer of the GSM network listens to the CS domain paging of the user, reports the access layer of the GSM network.
  • the called connection is established, and after receiving the CC message from the network side, the mobile terminal notifies the CC layer to start the called service process; after the physical layer of the TD network listens to the PS domain paging of the user, accesses through the TD network.
  • the layer notifies the GMM layer to initiate an RRC connection establishment, and after receiving the SM message from the called party, the mobile terminal notifies the SM layer to start the called service process; after the EMM layer of the LTE network receives the paging in the idle state, the LTE network sends the paging to the LTE network.
  • the access layer initiates a DRB request, and the mobile terminal sends a request for establishing a DRB to the network side through the RRC connection established by the LTE network, and allocates the DRB by the network side, and continues the PS domain PDN to exclusively carry the called service process.
  • the method further includes: determining that the TD network and the LTE network are lost if both the TD signal and the LTE signal are lower than respective predetermined thresholds. Cover, the mobile terminal first activates the PS domain service of the TD network or the LTE network, and then activates the PS domain service of the GSM network.
  • the method further includes: when the TD network determines, by measuring, that the TD signal is equal to or greater than a predetermined threshold, initiates a request to switch the PS domain service of the GSM network to the TD network; or When the LTE network determines by measurement that the LTE signal is equal to or greater than its predetermined threshold, initiates a request to handover the PS domain service of the GSM network to the LTE network.
  • the method further includes: after receiving the request message from the network side to the TD network, the access layer of the LTE network notifies the physical layer of the LTE network to release
  • the configuration information stops the uplink and downlink scheduling and data transmission and reception; the access layer of the LTE network initiates a handover request to the access layer of the TD network, and after the access layer of the TD network is successfully switched, the routing update is performed, and the ESM layer termination procedure is performed.
  • the SM layer performs the standard migration of links and data.
  • a method for coexisting two standby modes in a single-chip protocol is adopted, which solves the problem that the GSM network is heavily loaded and the LTE/TD network voice service is poorly perceived in the related art, and the cost and power consumption are reduced.
  • the technical effect of diverting the business and balancing the network load is achieved.
  • FIG. 1 is a block diagram showing a structure of a multimode dual standby mobile terminal according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a network registration method of a multimode dual standby mobile terminal according to an embodiment of the present invention
  • 3 is a schematic diagram of a terminal chip according to a preferred embodiment of the present invention
  • FIG. 4 is a schematic diagram of an LTE dual standby multimode protocol according to a preferred embodiment of the present invention
  • FIG. 5 is a flow chart of a terminal searching and registering according to a preferred embodiment of the present invention.
  • FIG. 6 is a schematic flowchart of a terminal calling service initiation according to a preferred embodiment of the present invention
  • FIG. 7 is a schematic flowchart of a terminal called service initiation according to a preferred embodiment of the present invention
  • FIG. 8 is a schematic flowchart of a handover of a terminal PS domain between a TD ⁇ LTE and a GSM system according to a preferred embodiment of the present invention;
  • FIG. 9 is a flow chart of handover of a terminal PS service between an LTE and a TD system according to a preferred embodiment of the present invention.
  • BEST MODE FOR CARRYING OUT THE INVENTION the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.
  • a multimode dual standby mobile terminal is provided. 1 is a structural block diagram of a multimode dual standby mobile terminal according to an embodiment of the present invention. As shown in FIG.
  • the multimode dual standby mobile terminal includes an application and user interface layer module 12, a single chip protocol module 14 and
  • the multi-mode radio frequency layer processing module 16 includes: a first standby unit 142 coupled to the application and user interface layer module 12 and the multi-mode radio physical layer processing module 16 configured to reside in the GSM
  • the network uses a GSM network to provide a circuit switching (Circuit Switch, CS for short) domain service, and after the TD network and the LTE network lose coverage, the GSM network is used to provide the PS domain service; and the second standby unit 144 is coupled to the application and
  • the user interface layer module 12 and the multi-mode radio frequency layer processing module 16 are configured to reside in the TD network or the LTE network, provide PS domain services using the TD network or the LTE network, and switch between the TD network and the LTE network.
  • the above-mentioned multi-mode dual-standby mobile terminal adopts a method in which two standby modes coexist in a single-chip protocol, and solves the problem that the GSM network is heavily loaded and the LTE/TD network voice service is poorly perceived in the related art, and the problem is reduced. Cost and power consumption have achieved the technical effect of diverting traffic and balancing network load.
  • the first standby unit 142 is further configured to start the first standby task in the following protocol after the mobile terminal is powered on: GSM standard access (GSM-AS) layer, mobility management (Mobile management, MM for short) Layer, Call Control (CC) / Supplementary Service (SS) / Short Message Service (SMS) layer, Man Machine Interface Adaption (referred to as Man Machine Interface Adaption) MMIA) layer, Session Management (SM) layer, United Mobile Management (UMM) layer, General Packet Radio Service (GPRS) mobility management (GPRS Mobile Management, referred to as the GMM layer.
  • GSM-AS GSM standard access
  • Mobile management Mobile management, MM for short
  • CC Call Control
  • SS Supplementary Service
  • SMS Short Message Service
  • MMIA Man Machine Interface Adaption
  • Session Management SM
  • UMM United Mobile Management
  • GPRS General Packet Radio Service
  • the second standby unit 144 is further configured to start a second standby task in the following protocol after the mobile terminal is powered on: a TD-AS access layer (TD-AS) layer, an LTE system access (LTE-AS) layer, Evolved Packet System Mobility Management (EMM layer) Evolved Packet System Session Management (ESM layer), MMIA layer, SM layer, UMM layer, GMM layer.
  • TD-AS TD-AS access layer
  • LTE-AS LTE system access
  • EMM layer Evolved Packet System Mobility Management
  • ESM layer Evolved Packet System Session Management
  • the first standby unit 142 can serve as the standby side of the GSM network
  • the second standby unit 144 can serve as the standby side of the TD/LTE network.
  • the first standby unit 142 and the second standby unit 144 operate simultaneously, thereby implementing the function of the multi-mode dual standby of the mobile terminal.
  • a method for network registration based on the multimode dual standby mobile terminal is provided. 2 is a flowchart of a method for registering a network of a multi-mode dual-standby mobile terminal according to an embodiment of the present invention. As shown in FIG.
  • Step S202 After the mobile terminal is powered on, indicating that the physical layer is The modular radio frequency is turned on; in step S204, the mobile terminal notifies the respective physical layer to search for the cell information through the multi-mode access layer in the single-chip protocol, and the step S206, in the case that the relocation is successful, initiates the CS domain registration process to the GSM network.
  • Step S202 After the mobile terminal is powered on, indicating that the physical layer is The modular radio frequency is turned on; in step S204, the mobile terminal notifies the respective physical layer to search for the cell information through the multi-mode access layer in the single-chip protocol, and the step S206, in the case that the relocation is successful, initiates the CS domain registration process to the GSM network.
  • the LTE network initiates a PS domain registration process.
  • a mobile terminal that implements two standby modes (for example, GSM standard and TD standard, or GSM standard and LTE standard) in a single-chip protocol is used, and the GSM network load is heavy and LTE is solved in the related art.
  • the problem of poor perception of /TD network voice service reduces cost and power consumption, and achieves the technical effect of traffic offload and balancing network load.
  • the processing manner of the multi-mode dual-standby mobile terminal may be: for the first mode, the CS domain from the CC layer is received.
  • the request is to establish a radio resource (Radio Resource, referred to as RR) connection in the GSM network, and the calling process is performed on the CS domain connection in the GSM network by the CC layer; and the second method receives the PS domain from the SM layer.
  • RR Radio Resource
  • the request is to establish an RRC connection in the TD network, and the calling process is performed on the PS domain connection in the TD network by the SM layer;
  • DRB data radio bearer
  • the RRC connection established by the LTE network sends a DRB request to the network side, and the network side allocates the DRB to continue the PS.
  • the domain PDN exclusively hosts the calling process.
  • the physical layer of the GSM network can also be configured to listen to the CS domain paging, and the physical layer of the TD network or the LTE network can be configured to listen to the PS domain paging.
  • the method acquires user information for real-time monitoring, for example, when the mobile terminal is the called user.
  • the processing manner of the multimode dual standby mobile terminal may be: for the first physical layer of the GSM network (ie, GSM).
  • the PHY After listening to the CS domain paging of the user, the PHY first reports the access layer of the GSM network (ie, GSM-AS) to establish the called connection, and then the mobile terminal notifies the CC layer after receiving the CC message from the network side.
  • GSM-AS the access layer of the GSM network
  • the mobile terminal After listening to the PS domain paging of the user, the PHY first reports the access layer of the GSM network (ie, GSM-AS) to establish the called connection, and then the mobile terminal notifies the CC layer after receiving the CC message from the network side.
  • mode 2 the physical layer of the TD network (ie TD PHY)
  • the GMM layer after listening to the PS domain paging of the user, first notify the GMM layer to initiate an RRC connection establishment through the access layer of the TD network, and then the mobile terminal is After receiving the SM message from the called party, the SM layer is notified to start the called service process.
  • Method 3 After receiving the paging in the idle state, the EMM layer of the LTE network first initiates a request for establishing a DRB to the access layer of the LTE network. Then, the mobile terminal sends a DRB request to the network side through the RRC connection established by the LTE network, allocates the DRB by the network side, and continues the PS domain PDN to exclusively carry the called service process. In the implementation process, after the mobile terminal registers respectively in the CS domain and the PS domain, if the TD signal and the LTE signal are both lower than the respective predetermined thresholds, the TD network and the LTE network are considered to be lost.
  • the mobile terminal The PS domain service of the TD network or the LTE network may be first deactivated, and then the PS domain service of the GSM network is activated. It should be noted that, in the Detach process, the terminal and the core network cannot perform the PS service; and in the activation process, the terminal and the core network can perform the PS service.
  • the TD network determines, by measurement, that the TD signal is equal to or greater than a predetermined threshold, initiates a request to switch the PS domain service of the GSM network to the TD network; or, the LTE network
  • a request to handover the PS domain service of the GSM network to the LTE network is initiated.
  • the PS domain service of the GSM network is still activated first, and then the PS domain service of the TD network or the LTE network is activated.
  • the TD network, the LTE network, and the GSM network herein refer to a protocol within the mobile terminal.
  • the LTE and TD networks can also be switched. For example, in step S206, if the GPRS network is successfully registered in the PS domain service, the LTE network to the TD network may be switched. After the access layer of the LTE network receives the request message from the network side to switch to the TD network, The physical layer of the LTE network can be notified to release its configuration information, stop the uplink and downlink scheduling, and send and receive data. Then, the access layer of the LTE network initiates a handover request to the access layer of the TD network (ie, the information interaction between the protocols). After the access layer of the TD network is successfully switched, the route is updated.
  • the access layer of the LTE network ie, the information interaction between the protocols.
  • the multi-mode radio frequency in the physical layer may be LTE radio frequency (LTE-RF), GSM radio frequency (GSM-RF), and TD radio frequency (TD-RF).
  • LTE-RF LTE radio frequency
  • GSM-RF GSM radio frequency
  • TD-RF TD radio frequency
  • the protocol is divided into standby measurement 1 (as shown by the dotted line on the left side of FIG. 4), and resides in the GSM network to perform CS service.
  • Standby measurement 2 (as shown on the right side of the dotted line in Figure 4) Residing on the TD/LTE network for PS services.
  • the coverage of the GSM network is better, and the burden on the GSM network can be alleviated, and the advantage of the TD/LTE PS domain service rate is improved, and the user experience is improved.
  • the PS service can also be transferred to a mobile terminal with a better signal GSM network. This not only improves the user's experience perception, but also balances the network traffic load.
  • a single-chip LTE multi-mode dual-standby terminal a method capable of simultaneously camping on an LTE/TD or a GSM network, and performing a CS/PS service is implemented.
  • the terminal type uses a single mobile phone chip, dual radio (dual antenna), dual card support and single card.
  • Standby 1 task 1 resides in the GSM network, provides CS domain services
  • Standby 2 task 2 resides in the TD/LTE network to provide PS domain services.
  • the mobile terminal in this example can support the CS service and the PS service at the same time, and can switch between the LTE and the TD network, and after the TD and LTE are lost, the PS domain service can also be performed on the GSM.
  • the terminal After booting up, the terminal simultaneously searches and camps on the two standby sides of GSM and TD ⁇ LTE.
  • the MM After successful relocation, the MM performs CS domain location update on the GSM network; the GMM or EMM performs PS attach on the TD or LTE network. The registration of the CS domain and the PS domain is completed separately.
  • the MM splits the GSM network; when there is a PS service such as the Internet, the GMM or EMM is offloaded on the TD and LTE networks.
  • the GSM AS layer monitors CS domain paging, TD or LTE
  • the AS layer monitors PS paging.
  • the PS service can be transferred to the GSM network to avoid the use of the PS service due to the discontinuity of the TD or LTE network coverage.
  • the terminal finds that the TD or LTE signal recovers better, the PS service is transferred back to the TD or LTE network.
  • the implementation of the preferred terminal (Mobile Terminal, MT for short) is described in detail below. The following is from the search network registration, CS/PS calling service initiation, CS/PS called service initiation, TD/LTE standby side
  • FIG. 5 is a schematic diagram of a process for searching, registering, and registering a terminal according to a preferred embodiment of the present invention. As shown in FIG. 5, the process may include the following steps: Step A: The user is powered on, and the MM layer notifies the TD-AS.
  • Step B After the GSM physical layer, the TD physical layer, and the LTE physical layer open the radio successfully, Reply to the GSM-AS layer, the TD-AS layer, the LTE-AS layer, the GSM-AS layer, the TD-AS layer, and the LTE-AS layer to reply to the MM layer.
  • the RF is turned on.
  • Step C Configure the standby side 1 to support only GSM and CSPS.
  • the standby side 2 supports TD/LTE.
  • the MM layer performs a network search process, and the MM layer sends a search command to the GSM-AS layer and the TD-AS ⁇ LTE-AS at the same time, requesting to search for a suitable cell on the standby side and camping on it;
  • Step D GSM-AS Working with the TD-AS ⁇ LTE-AS, requesting the respective physical layer to search for a suitable cell and camping successfully, and then replying to the cell information of the MM layer camping cell;
  • Step E After receiving the successfully camped cell information, the MM layer
  • the registration process of the CS domain is initiated on the GSM system, and the registration process of the PS domain is initiated on the TD ⁇ LTE system.
  • FIG. 6 is a schematic flowchart of a terminal calling service initiation according to a preferred embodiment of the present invention. As shown in FIG.
  • the process may include the following steps: 1) The calling service establishment process of the CC domain CC call under the GSM network: Step A1: The connection establishment request of the CC originating call; Step B1: After receiving the connection establishment request, the MM is a CS domain call, and establishes an RR connection in the GSM standard request. Step CI: After the RR connection is established, the MM establishes the MM connection, and the MM connection in the CS domain of the CC module is successfully established. The CC performs the calling process on the established GSM system. CS' domain connection. At this point, the service calling process of the CS domain under the GSM network is completed.
  • Step A2 The SM initiates the connection establishment request of the SM service
  • Step B2 After the GMM receives the connection establishment request , is a PS domain service, and establishes an RRC connection in the TD system request
  • Step C2 After the RRC connection is established, the GMM replies to the SM' module PS domain signaling connection establishment successfully, and the SM is in the established TD standard PS domain signaling connection. Conduct the calling process. At this point, the service calling process of the PS domain under the TD network is completed.
  • PDP Packet Data Protocol
  • Step A3 The MMIA requests the ESM to initiate a dedicated bearer setup procedure; Step B3: If the DRB is absent, the ESM requests The EMM establishes a DRB; Step C3: The EMM requests the LTEAS to establish a DRB, and the LTE AS establishes an RRC connection and then sets the service request.
  • Step D3 The EMM sends the L3 request to establish a dedicated bearer message to the network side, and the network response accepts the proprietary Establishment of bearers;
  • Step E3 If the UE can accept the request of the network, send a message that the private bearer accepts to the network side, and notify the MMIA; At this point, the service calling process of the PS domain in the LTE network is completed.
  • FIG. 7 is a schematic flowchart of a terminal called service initiation according to a preferred embodiment of the present invention. As shown in FIG. 7, the process may include the following steps:
  • Step A1 The GSM physical layer always listens to the CS domain paging of the user;
  • Step B1 After listening to the CS domain paging of the user, reporting to the GSM-AS layer After the called connection is established, the MM is notified that the called service is accessed.
  • Step CI After receiving the called service notification, the MM moves to the corresponding appropriate state, waits for the CC message on the network side, and receives After the network CC message, the CC is notified;
  • Step D1 After receiving the called message, the CC starts the called service process; At this point, the called service process of the CS domain in the GSM network is completed.
  • Step A2 The TD physical layer always listens to the user's PS domain paging; Step B2: After listening to the PS domain paging of the user, reporting to the TD-AS layer The GMM module is notified; Step C2: After receiving the PS domain paging, the GMM module initiates an RRC connection setup and responds to the PS domain paging. Step D2: After the RRC connection is successfully established, the PS domain signaling connection is established; Step E2: GMM receives After the SM message is sent, the SM message is reported to the SM module. Step F2: After receiving the called message, the SM starts the SM called service process.
  • Step A3 The EMM receives the paging in the idle (IDLE) state;
  • Step B3 The EMM requests the LTE AS to establish the DRB, and the LTE AS establishes the Radio Resource Control (RRC) connection and sends the SERVICE REQUEST to the network side.
  • RRC Radio Resource Control
  • FIG. 8 is a schematic diagram of a process of transferring a terminal PS domain between TD ⁇ LTE and GSM according to a preferred embodiment of the present invention. As shown in FIG.
  • Step A TD-AS and LTE-AS measurements show that the TD and LTE signals are poor, below the threshold, and the coverage is lost, notifying the UMM PS domain that it is unavailable.
  • Step B After receiving the signal quality notification, the UMM notifies the user whether to switch to GSM. If the PS domain is switched to GSM, the PS domain of the LTE/TD is deactivated first. If the user refuses to perform the PS domain under GSM, the TD/LTE side loss coverage cannot provide the PS domain service normally until the coverage is restored.
  • Step C Deactivate the PS domain of TD or LTE, initiate PS activation on the GSM system, and provide PS domain service in the PS after successful activation;
  • Step D TD-AS or LTE-AS measurement finds TD or LTE signal recovery, notifies UMM; E: After receiving the signal quality notification, the UMM notifies the user whether to switch to TD or LTE.
  • Step F If you agree to switch to TD or LTE, you must first activate the GSM PS domain, and then activate the TD or LTE PS domain, TD. After the activation of the LTE PS is successful, the process ends.
  • the PS service can be transferred to the GSM network through the UMM and the user, thereby avoiding the use of the PS service due to the discontinuity of the TD or LTE network coverage.
  • the PS service can be transferred back to the TD or LTE network through UMM and LTE.
  • FIG. 9 is a schematic flowchart of switching between the LTE and TD modes of the terminal PS service according to the preferred embodiment of the present invention.
  • the process may include the following steps: Step A: The LTE AS receives the handover message from the network side, notifies the ASC (Access-Stratum-Control, which is the protocol layer defined in the specific implementation), and starts the UMM handover. Step B: The LTE AS notifies the physical layer to release its configuration information, and stops the uplink and downlink.
  • ASC Access-Stratum-Control
  • Step C The LTE AS notifies the data to stop the transmission of the data, and stops the delivery of the uplink data;
  • Step D The LTE AS sends the NAS (Non-Access-Stratum) security information parameter in the handover message
  • the EMM is configured to perform the mapping of the security context.
  • Step E The LTE AS initiates a handover request to the TD access layer, and the TD starts to perform resource configuration.
  • Step F After the TD AS handover succeeds, the LTE AS and the UMM are successfully switched, and the routing is performed.
  • Step G The UMM notifies the ESM to switch to the TD system, the ESM terminates the procedure, clears the timer, adjusts the state, and evolves the packet system.
  • the Evolved Packet System (EPS) bearer context is sent to the SM, and the SM maps it to the PDP context.
  • Step H The SM judges that the current system is TD, and the chain under LTE is activated for each data link activated under the EPS. When the path is switched to the TD, data that has not been successfully transmitted under LTE is moved to the TD to continue transmission.
  • PSHO Packet Switch
  • Adopting CS in GSM and PS priority in TD/LTE network can not only meet the user's use requirements, but also better achieve the role of service offload and balance network load, and take advantage of different networks.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device so that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or Multiple modules or steps are made into a single integrated circuit module.
  • the invention is not limited to any particular combination of hardware and software.
  • the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

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  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

本发明公开了一种多模双待的移动终端及其网络注册方法,其中,该多模双待的移动终端,包括应用及用户界面层模块、单芯片协议栈模块和多模射频物理层处理模块,其中,单芯片协议栈模块包括:第一待机单元,设置为驻留在GSM网络,使用GSM网络提供CS域服务,且在TD网络和LTE网络均丢失覆盖后,使用GSM网络提供PS域服务;以及第二待机单元,设置为驻留在TD网络或LTE网络,使用TD网络或LTE网络提供PS域服务,且在TD网络与LTE网络之间相互切换。通过本发明,解决了相关技术中GSM网络负荷较重以及LTE/TD网络语音业务感知差的问题,降低了成本和功耗,达到了业务分流、平衡网络负荷的技术效果。

Description

多模双待的移动终端及其网络注册方法 技术领域 本发明涉及通信领域, 具体而言, 涉及一种多模双待的移动终端及其网络注册方 法。 背景技术 随着通信技术的发展, 必然出现全球移动通信 (Global system for Mobile Communication,简称为 GSM)、时分同步的码分多址(Time Division-Synchronous Code Division Multiple Access,简称为 TD-SCDMA或 TD)、长期演进(Long Term Evolution, 简称为 LTE) 的网络共同存在。 相比于 GSM网络的覆盖, TD和 LTE还不如 GSM, 但是其分组交换 (Packet Switch, 简称为 PS)域的上传下载速率明显高于 GSM网络。 目前, 国内使用 GSM手机的用户数量还是相当大, 除了正常的语音、 短信之外, 用户还可能进行 PS业务, 例如, 上网、微博、微信、游戏、 收发彩信等, 造成了 GSM 网络的负荷比较重。 而与此同时, TD的网络却利用率不高, TD网络不连续, 语音业 务用户感知比较差。 并且随着通信技术的发展 LTE网络的建设也会逐渐展开, 必然形成 TD、 GSM、
LTE网络共存的状况。 针对相关技术中 GSM网络负荷较重以及 LTE/TD网络语音业务感知差的问题,目 前尚未提出有效的解决方案。 发明内容 本发明实施例提供一种多模双待的移动终端。 根据本发明实施例的一个方面, 提供了一种多模双待的移动终端, 包括应用及用 户界面层模块、 单芯片协议桟模块和多模射频物理层处理模块, 其中, 单芯片协议桟 模块包括: 第一待机单元, 设置为驻留在 GSM网络, 使用 GSM网络提供 CS域服务, 且在 TD网络和 LTE网络均丢失覆盖后, 使用 GSM网络提供 PS域服务; 以及第二待 机单元, 设置为驻留在 TD网络或 LTE网络, 使用 TD网络或 LTE网络提供 PS域服 务, 且在 TD网络与 LTE网络之间相互切换。 优选地, 第一待机单元还设置为在移动终端开机后, 在以下协议桟中启动第一待 机任务: GSM-AS层、 MM层、 CC/SS/SMS层、 MMIA层、 SM层、 UMM层、 GMM 层。 优选地, 第二待机单元还设置为在移动终端开机后, 在以下协议桟中启动第二待 机任务: TD-AS层、 LTE-AS层、 EMM层、 ESM层、 MMIA层、 SM层、 UMM层、 GMM层。 根据本发明实施例的另一方面,还提供了一种基于上述移动终端的网络注册方法, 包括: 移动终端开机后, 指示物理层中的多模制式射频开启; 移动终端通过单芯片协 议桟中的多模接入层通知各自的物理层搜索小区信息, 并在驻留成功的情况下, 向 GSM网络发起 CS域注册过程, 向 TD或 LTE网络发起 PS域注册过程。 优选地, 当移动终端在 CS域和 PS域分别注册成功后, 上述方法还包括: 移动终 端配置 GSM网络的物理层监听 CS域寻呼, 配置 TD网络或 LTE网络的物理层监听 PS域寻呼。 优选地, 当移动终端在 CS域和 PS域分别注册成功后, 上述方法还包括以下至少 之一: 移动终端接收到来自 CC层的 CS域主叫业务时, 请求在 GSM网络建立 RR连 接, 以 CC层在 GSM网络中的 CS域连接上进行主叫过程; 移动终端接收到来自 SM 层的 PS域主叫业务时, 请求在 TD网络建立 RRC连接, 以 SM层在 TD网络中的 PS 域连接上进行主叫过程; 移动终端接收到来自 ESM层建立 DRB的请求时, 通过 LTE 网络建立的 RRC连接将建立 DRB的请求发送到网络侧, 以网络侧分配 DRB, 继续 PS域 PDN专有承载主叫过程。 优选地, 当移动终端在 CS域和 PS域分别注册成功后, 上述方法还包括以下至少 之一: GSM网络的物理层监听到本用户的 CS域寻呼后, 上报 GSM网络的接入层进 行被叫连接建立, 且移动终端在接收到来自网络侧的 CC消息后, 通知 CC层开始被 叫业务过程; TD网络的物理层监听到本用户的 PS域寻呼后, 通过 TD网络的接入层 通知 GMM层发起 RRC连接建立, 且移动终端在接收到来自被叫的 SM消息后, 通知 SM层开始被叫业务过程; LTE网络的 EMM层在空闲态接收到寻呼后, 向 LTE网络 的接入层发起建立 DRB的请求,移动终端通过 LTE网络建立的 RRC连接将建立 DRB 的请求发送到网络侧, 以网络侧分配 DRB, 继续 PS域 PDN专有承载被叫业务过程。 优选地, 当移动终端在 CS域和 PS域分别注册成功后, 上述方法还包括: 在 TD 信号与 LTE信号均低于各自预定的门限值的情况下,确定 TD网络和 LTE网络丢失覆 盖, 移动终端首先去活 TD网络或 LTE网络的 PS域业务, 然后激活 GSM网络的 PS 域业务。 优选地, 激活 GSM网络的 PS域业务之后, 上述方法还包括: TD网络通过测量 确定 TD信号等于或大于其预定门限值时, 发起将 GSM网络的 PS域业务切换到 TD 网络的请求; 或者, LTE网络通过测量确定 LTE信号等于或大于其预定门限值时, 发 起将 GSM网络的 PS域业务切换到 LTE网络的请求。 优选地, 当移动终端在 CS域和 PS域分别注册成功后, 上述方法还包括: LTE网 络的接入层接收到来自网络侧的切换到 TD网络的请求消息后, 通知 LTE网络的物理 层释放其配置信息,停止上行和下行的调度以及数据的收发; LTE网络的接入层向 TD 网络的接入层发起切换请求, TD网络的接入层切换成功后, 进行路由更新, ESM层 终止规程, SM层进行链路和数据的制式迁移。 通过本发明实施例, 采用在单芯片协议桟中实现两种待机模式共存的方式, 解决 了相关技术中 GSM网络负荷较重以及 LTE/TD网络语音业务感知差的问题,降低了成 本和功耗, 达到了业务分流、 平衡网络负荷的技术效果。 附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部分, 本发 明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的不当限定。 在附图 中- 图 1是根据本发明实施例的多模双待的移动终端的结构框图; 图 2是根据本发明实施例的多模双待的移动终端的网络注册方法的流程图; 图 3是根据本发明优选实施例的终端芯片示意图; 图 4是根据本发明优选实施例的 LTE双待多模协议桟示意图; 图 5是根据本发明优选实施例的终端在搜网、 登记的流程示意图; 图 6是根据本发明优选实施例的终端主叫业务发起的流程示意图; 图 7是根据本发明优选实施例的终端被叫业务发起的流程示意图; 图 8是根据本发明优选实施例的终端 PS域在 TD\LTE和 GSM制式间转移的流程 示意图; 图 9是根据本发明优选实施例的终端 PS业务在 LTE和 TD制式间切换的流程示 意图。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是, 在不冲突的 情况下, 本申请中的实施例及实施例中的特征可以相互组合。 根据本发明实施例, 提供了一种多模双待的移动终端。 图 1是根据本发明实施例 的多模双待的移动终端的结构框图, 如图 1所示, 该多模双待的移动终端包括应用及 用户界面层模块 12、 单芯片协议桟模块 14和多模射频物理层处理模块 16, 其中, 单 芯片协议桟模块 14包括: 第一待机单元 142, 耦合至应用及用户界面层模块 12和多 模射频物理层处理模块 16, 设置为驻留在 GSM网络, 使用 GSM网络提供电路交换 (Circuit Switch, 简称为 CS)域服务, 且在 TD网络和 LTE网络均丢失覆盖后, 使用 GSM网络提供 PS域服务; 以及第二待机单元 144, 耦合至应用及用户界面层模块 12 和多模射频物理层处理模块 16, 设置为驻留在 TD网络或 LTE网络, 使用 TD网络或 LTE网络提供 PS域服务, 且在 TD网络与 LTE网络之间相互切换。 通过上述多模双待的移动终端, 采用在单芯片协议桟中实现两种待机模式共存的 方式,解决了相关技术中 GSM网络负荷较重以及 LTE/TD网络语音业务感知差的问题, 降低了成本和功耗, 达到了业务分流、 平衡网络负荷的技术效果。 优选地, 第一待机单元 142还设置为在移动终端开机后, 在以下协议桟中启动第 一待机任务: GSM制式接入(GSM-AS)层、 移动性管理(Mobile Management, 简称 为 MM)层、 呼叫控制(Call Control, 简称为 CC) /补充业务(Supplementary Service, 简称为 SS) /短消息业务(Short Message Service,简称为 SMS)层、人机接口适配(Man Machine Interface Adaption, 简称为 MMIA) 层、 会话管理 ( Session Management, 简 称为 SM) 层、 联合移动性管理 (United Mobile Management, 简称为 UMM) 层、 通 用分组无线业务 (General Packet Radio Service , 简称为 GPRS) 移动性管理 (GPRS Mobile Management, 简称为 GMM ) 层。 优选地, 第二待机单元 144还设置为在移动终端开机后, 在以下协议桟中启动第 二待机任务: TD制式接入 (TD-AS) 层、 LTE制式接入 (LTE-AS) 层、 演进的分组 系统移动性管理 (Evolved Packet System Mobility Management, 简称为 EMM层)、 演 进的分组系统会话管理(Evolved Packet System Session Management,简称为 ESM层)、 MMIA层、 SM层、 UMM层、 GMM层。 需要说明的是, 上述第一待机单元 142和第二待机单元 144均为移动终端内部的 协议桟。 在实施过程中, MMIA和 UMM可以是 TD/LTE/GSM都用到, SM和 GMM 可以在 GSM/TD中用到。 在实施过程中, 第一待机单元 142可以作为 GSM网络待机侧, 第二待机单元 144 可以作为 TD/LTE网络待机侧。 对于上述很多协议层, 第一待机单元 142和第二待机 单元 144同时工作, 从而实现移动终端多模双待的功能。 根据本发明实施例,提供了一种基于上述多模双待移动终端进行网络注册的方法。 图 2是根据本发明实施例的多模双待的移动终端的网络注册方法的流程图, 如图 2所 示, 该方法包括如下步骤: 步骤 S202, 移动终端开机后, 指示物理层中的多模制式射频开启; 步骤 S204,移动终端通过单芯片协议桟中的多模接入层通知各自的物理层搜索小 区信息; 步骤 S206, 在驻留成功的情况下, 向 GSM网络发起 CS域注册过程, 向 TD或
LTE网络发起 PS域注册过程。 通过上述步骤, 采用了在单芯片协议桟中实现两种待机模式(例如, GSM制式和 TD制式, 或 GSM制式和 LTE制式)共存的移动终端, 解决了相关技术中 GSM网络 负荷较重以及 LTE/TD网络语音业务感知差的问题, 降低了成本和功耗, 达到了业务 分流、 平衡网络负荷的技术效果。 优选地, 当移动终端在 CS域和 PS域分别注册成功后, 针对 CS/PS域主叫业务, 上述多模双待移动终端的处理方式可以为: 方式一、 接收到来自 CC层的 CS域主叫业务时, 请求在 GSM网络建立无线资源 (Radio Resource, 简称为 RR) 连接, 以 CC层在 GSM网络中的 CS域连接上进行主 叫过程; 方式二、接收到来自 SM层的 PS域主叫业务时, 请求在 TD网络建立 RRC连接, 以 SM层在 TD网络中的 PS域连接上进行主叫过程; 方式三、接收到来自 ESM层建立数据无线承载(Data Radio Bearer,简称为 DRB) 的请求时, 通过 LTE网络建立的 RRC连接将建立 DRB的请求发送到网络侧, 以网络 侧分配 DRB, 继续 PS域 PDN专有承载主叫过程。 此外, 步骤 S206中移动终端在 CS域和 PS域分别注册成功后, 还可以配置 GSM 网络的物理层监听 CS域寻呼,以及配置 TD网络或 LTE网络的物理层监听 PS域寻呼。 该方法为了实时监听获取用户信息, 例如, 在移动终端作为被叫用户的时候。 优选地, 当移动终端在 CS域和 PS域分别注册成功后, 针对 CS/PS域被叫业务, 上述多模双待移动终端的处理方式可以为: 方式一、 GSM网络的物理层 (即 GSM PHY) 监听到本用户的 CS域寻呼后, 首 先上报 GSM网络的接入层 (即 GSM-AS) 进行被叫连接建立, 然后移动终端在接收 到来自网络侧的 CC消息后, 通知 CC层开始被叫业务过程; 方式二、 TD网络的物理层 (即 TD PHY) 监听到本用户的 PS域寻呼后, 首先通 过 TD网络的接入层通知 GMM层发起 RRC连接建立,然后移动终端在接收到来自被 叫的 SM消息后, 通知 SM层开始被叫业务过程; 方式三、 LTE网络的 EMM层在空闲态接收到寻呼后, 首先向 LTE网络的接入层 发起建立 DRB的请求, 然后移动终端通过 LTE网络建立的 RRC连接将建立 DRB的 请求发送到网络侧, 以网络侧分配 DRB, 继续 PS域 PDN专有承载被叫业务过程。 在实施过程中,当移动终端在 CS域和 PS域分别注册成功后,如果 TD信号与 LTE 信号均低于各自预定的门限值, 则认为 TD网络和 LTE网络丢失覆盖, 此时, 移动终 端可以首先去活 TD网络或 LTE网络的 PS域业务,然后激活 GSM网络的 PS域业务。 需要说明的是, 去活 (Detach) 过程, 终端和核心网不能进行 PS业务; 而激活过程, 终端和核心网是可以进行 PS业务的。 优选地, 在激活 GSM网络的 PS域业务之后, 在 TD网络通过测量确定 TD信号 等于或大于其预定门限值时, 发起将 GSM网络的 PS域业务切换到 TD网络的请求; 或者, LTE网络通过测量确定 LTE信号等于或大于其预定门限值时, 发起将 GSM网 络的 PS域业务切换到 LTE网络的请求。 此时, 仍然是先去激活 GSM网络的 PS域业 务, 然后再激活 TD网络或 LTE网络的 PS域业务。 需要说明的是, 这里的 TD网络、 LTE网络和 GSM网络是指移动终端内部的协议桟。 另夕卜, 当移动终端在 CS域和 PS域分别注册成功后, 还可以进行 LTE和 TD网络 的切换。 例如, 在步骤 S206中, 注册 PS域业务成功的是 LTE网络, 则可以进行 LTE 网络到 TD网络的切换, 当 LTE网络的接入层接收到来自网络侧的切换到 TD网络的 请求消息后, 可以通知 LTE网络的物理层释放其配置信息, 停止上行和下行的调度以 及数据的收发, 然后, LTE网络的接入层向 TD网络的接入层发起切换请求 (即协议 桟之间的信息交互), TD网络的接入层切换成功后, 进行路由更新, 此时, ESM层终 止规程, SM层可以进行链路和数据的制式迁移。 步骤 S202中, 上述物理层中的多模制式射频可以为 LTE射频 (LTE-RF)、 GSM 射频 (GSM-RF)、 TD射频 (TD-RF)。 下面结合优选实施例和附图对上述实施例的实现过程进行详细说明。 图 3是根据本发明优选实施例的终端芯片示意图, 如图 3所示, 本实例实现了一 种单芯片 LTE多模双待的移动终端, 支持双卡和单卡双待。 图 4是根据本发明优选实施例的 LTE双待多模协议桟示意图, 如图 4所示, 协议 桟分为待机测 1 (如图 4虚线左侧) 驻留在 GSM网络, 进行 CS业务; 待机测 2 (如 图 4虚线右侧) 驻留到 TD/LTE网络, 进行 PS业务。 这样充分发挥 GSM网络的覆盖 比较好, 并且能够减轻 GSM网络的负担, 发挥 TD/LTE PS域业务速率快的优势, 提 高了用户体验。 例如, 当网络 TD/LTE覆盖不好的时候, PS业务也可以转移到信号较 好 GSM 网络的一种移动终端。 这样不仅可以提高用户的体验感知, 而且还可以平衡 网络业务负荷, 同时不需要对现有网络进行改造升级, 并且针对大规模发展 3G、 LTE 用户, 提供了可靠的保证, 充分地发挥了现有网络优势的特点。 在本实例中, 实现了一种单芯片 LTE多模双待终端, 能够在 LTE/TD、 GSM网络 同时驻留, 并进行 CS/PS业务的方法。 终端型采用单个手机芯片、 双射频 (双天线)、 支持双卡和单卡。 提供两个待机任务, 待机测 1 (任务 1 ) 驻留 GSM网络, 提供 CS 域服务; 待机测 2 (任务 2) 驻留 TD/LTE网络提供 PS域服务。 可见, 本实例中的移 动终端可以支持 CS业务和 PS业务同时进行, 且可以在 LTE、 TD网络相互切换, 并 且, TD和 LTE丢失覆盖后, 还可以在 GSM上进行 PS域业务。 例如, 开机后, 终端分别在 GSM、 TD\LTE两个待机侧上同时进行搜网、 驻留。 驻留成功后, MM通过在 GSM网络上进行 CS域位置更新; GMM或 EMM在 TD或 LTE网络上进行 PS附着。 分别完成 CS域、 PS域的登记。 当有呼叫、 短信等 CS业务 时, 经过 MM分流在 GSM网络进行; 当有上网等 PS业务时, 经过 GMM或 EMM分 流在 TD和 LTE网络上进行。 当终端空闲时, GSM AS层监控 CS域寻呼, TD或 LTE AS层监控 PS寻呼; 当 TD和 LTE网络信号不好时, PS业务可以转移到 GSM网络来 进行,避免了因 TD或 LTE网络覆盖不连续而影响 PS业务的使用。当终端发现 TD或 LTE信号恢复较好状态时, PS业务转移回 TD或 LTE网络。 下面具体介绍一下本优选实例终端 (Mobile Terminal, 简称为 MT ) 的实现方式。 以下从搜网登记、 CS/PS 主叫业务发起、 CS/PS 被叫业务发起、 TD/LTE 待机侧
PS域业务不可用和恢复、 PS在 TD/LTE之间切换等五个部分进行说明:
1. 搜网登记 图 5是根据本发明优选实施例的终端在搜网、 登记的流程示意图, 如图 5所示, 该流程可以包括如下步骤: 步骤 A: 用户开机, MM层通知 TD-AS层、 GSM-AS层、 LTE-AS层, GSM物理 层、 TD物理层、 LTE物理层分别打开射频, 进入工作状态; 步骤 B : GSM物理层、 TD物理层、 LTE物理层打开射频成功后, 回复 GSM-AS 层、 TD-AS层、 LTE-AS层, GSM-AS层、 TD-AS层、 LTE-AS层回复 MM层, 至此 射频开启; 步骤 C : 配置待机侧 1仅支持 GSM、 CSPS , 待机侧 2支持 TD/LTE。 MMIA通知
MM层进行搜网过程, MM层给 GSM-AS层、 TD-AS\LTE-AS同时下发搜网命令, 请 求在各自的待机侧上搜网合适小区并驻留; 步骤 D : GSM-AS和 TD-AS\LTE-AS同时工作, 请求各自的物理层搜索合适的小 区并驻留成功, 然后回复 MM层驻留小区的小区信息; 步骤 E: MM层收到驻留成功的小区信息后, 在 GSM制式上发起 CS域的注册过 程, 在 TD\LTE制式上发起 PS域的注册过程。 当在 CS域、 PS域分别注册成功后, 分 别配置 GSM物理层监听 CS域寻呼, 配置 TD物理层 \LTE物理层监听 PS域寻呼, 并 上报注册结果给用户。 至此搜网、 登记过程完成, 终端可以正常进行主叫、 被叫业务。 2. CS/PS主叫业务发起 图 6是根据本发明优选实施例的终端主叫业务发起的流程示意图, 如图 6所示, 该流程可以包括如下步骤: 1) GSM网络下 CS域 CC呼叫的主叫业务建立过程: 步骤 Al: CC发起呼叫的连接建立请求; 步骤 Bl: MM收到连接建立请求后, 是 CS域呼叫, 在 GSM制式请求建立 RR 连接; 步骤 CI: RR连接建立完成后, MM进行 MM连接建立完成, 回复 CC模块 CS 域 MM连接建立成功, CC在已经建立好的 GSM制式. CS'域连接上进行主叫过程。 至此, GSM网络下 CS域的业务主叫过程完成。
2) TD网络下 PS域 SM分组数据协议 (Packet Data Protocol, 简称为 PDP)激活 的主叫业务建立过程: 步骤 A2: SM发起 SM业务的连接建立请求; 步骤 B2: GMM收到连接建立请求后, 是 PS域业务, 在 TD制式请求建立 RRC 连接; 步骤 C2: RRC连接建立完成后, GMM回复 SM'模块 PS域信令连接建立成功, SM在已经建立好的 TD制式 PS域信令连接上进行主叫过程。 至此, TD网络下 PS域的业务主叫过程完成。
3) LTE网络下 PS域分组数据网 (Packet Data Network, 简称为 PDN) 专有承载 主叫建立过程: 步骤 A3: MMIA向 ESM请求发起专有承载建立流程; 步骤 B3: 如果 DRB不在, ESM请求 EMM建立 DRB; 步骤 C3: EMM请求 LTEAS建立 DRB, LTE AS建立起 RRC连接后把业务请求
(SERVICE REQUEST)发到网络侧,网络侧为 UE分配 DRB, LTE AS通知 EMM DRB 建立完成; : ' 步骤 D3: EMM把 L3请求建立专有承载的消息发到网络侧,并且网络回应接受专 有承载的建立;
替换页 (细 第 26条) 步骤 E3 : 如果 UE能够接受网络的请求, 发专有承载接受的消息给网络侧, 并且 通知 MMIA; 至此, LTE网络下 PS域的业务主叫过程完成。
3. CS/PS被叫业务发起 图 7是根据本发明优选实施例的终端被叫业务发起的流程示意图, 如图 7所示, 该流程可以包括如下步骤:
1 ) GSM网络下 CS域 CC的被叫业务建立过程: 步骤 Al : GSM物理层一直监听用户的 CS域寻呼; 步骤 B1 : 当监听到本用户的 CS域寻呼后, 上报 GSM-AS层进行被叫建立; 等被 叫连接建立完成后, 通知 MM有被叫业务接入; 步骤 CI : MM收到被叫业务通知后, 迁到相应的合适状态, 等待网络侧的 CC消 息, 收到网络 CC消息后通知 CC; 步骤 Dl : CC收到被叫消息后, 开始进行被叫业务过程; 至此, GSM网络下 CS域的被叫业务过程完成。 2 ) TD网络下 PS域 SM的被叫业务建立过程: 步骤 A2: TD物理层一直监听用户的 PS域寻呼; 步骤 B2: 当监听到本用户的 PS域寻呼后, 上报 TD-AS层通知 GMM模块; 步骤 C2: GMM模块收到 PS域寻呼后, 发起 RRC连接建立, 响应 PS域寻呼; 步骤 D2: RRC连接建立成功后, PS域信令连接建立完成; 步骤 E2: GMM收到被叫的 SM消息后, 上报 SM消息给 SM模块; 步骤 F2: SM收到被叫消息后, 开始进行 SM被叫业务过程; 至此, TD网络下 PS域的被叫业务过程完成。 3 ) LTE网络下 PS域 PDN专有承载被叫建立过程: 步骤 A3: EMM在空闲 (IDLE) 态收到寻呼; 步骤 B3: EMM请求 LTE AS建立 DRB, LTE AS建立起无线资源控制 (Radio Resource Control, 简称为 RRC) 连接后把 SERVICE REQUEST 发到网络侧, 网络侧 为 UE分配 DRB, ERRC (即 E-UTRAN-RRC, 是协议桟的一个模块)通知 EMM DRB 建立完成; 步骤 C3: ESM收到网络的专有承载激活请求; 步骤 D3: 如果 UE能够接受网络的请求, 发专有承载接受的消息给网络侧, 并且 通知 MMIA; 至此, LTE网络下 PS域的被叫业务过程完成。 4. PS域业务不可用和恢复 图 8是根据本发明优选实施例的终端 PS域在 TD\LTE和 GSM制式间转移的流程 示意图, 如图 8所示, 该流程可以包括如下步骤: 步骤 A: TD-AS和 LTE-AS测量发现 TD和 LTE信号比较差, 低于门限值, 丢失 覆盖, 通知 UMM PS域不可用; 步骤 B: UMM收到信号质量通知后, 通知用户是否切换到 GSM进行 PS域, 如 果切换到 GSM, 则先去活 LTE/TD的 PS域; 如果用户拒绝到 GSM下进行 PS域, 则 TD/LTE侧丢失覆盖不能正常提供 PS域服务, 直到恢复覆盖; 步骤 C: 去活 TD或 LTE的 PS域, 在 GSM制式上发起 PS激活, 激活成功后在 PS提供 PS域业务; 步骤 D: TD-AS或 LTE-AS测量发现 TD或 LTE信号恢复, 通知 UMM; 步骤 E: UMM收到信号质量通知后, 通知用户是否切换到 TD或 LTE; 步骤 F: 如果同意切换到 TD或 LTE, 则要先去活 GSM的 PS域, 然后激活 TD 或 LTE的 PS域, TD或 LTE的 PS激活成功后, 这个过程结束。 以上步骤说明了当 TD和 LTE网络信号不好时, PS业务可以通过 UMM和用户转 移到 GSM网络来进行, 避免了因 TD或 LTE网络覆盖不连续而影响 PS业务的使用。 当终端发现 TD或 LTE信号恢复较好状态时, PS业务可以通过 UMM和 LTE再转移 回 TD或 LTE网络。
5. PS在 TD/LTE之间切换 图 9是根据本发明优选实施例的终端 PS业务在 LTE和 TD制式间切换的流程示 意图, 如图 9所示, 该流程可以包括如下步骤: 步骤 A: LTE AS收到网络侧的切换消息, 通知 ASC ( Access-Stratum-Control , 是 具体实现时定义的协议层)、 UMM切换开始; 步骤 B: LTE AS通知物理层释放其配置信息, 停止上行和下行的调度, 停止数据 的发送和接收; 步骤 C: LTE AS通知数据停止数据的发送, 停止上行数据的投递; 步骤 D: LTE AS将切换消息内的 NAS (Non- Access-Stratum) 安全信息参数发送 给 EMM, 以便进行安全上下文的映射; 步骤 E: LTE AS开始向 TD接入层发起切换请求, TD开始进行资源配置; 步骤 F: TD AS切换成功后通知 LTE AS和 UMM切换成功,并且进行路由更新; 步骤 G: UMM通知 ESM切换到了 TD制式下, ESM终止规程, 清除定时器, 调 整状态, 并将演进的分组系统(Evolved Packet System, 简称为 EPS)承载上下文发给 SM, 以 SM将之映射成 PDP上下文; 步骤 H: SM判断当前制式为 TD, 针对 EPS下激活的每条数据链路将 LTE下的 链路切换到 TD下, 将 LTE下未发送成功的数据搬移到 TD下继续发送。 以上步骤说明了当 LTE网络信号不好时, PS业务可以通过 PSHO (Packet Switch
Handover)切换到 TD网络来进行,同样 TD下也可以切换到 LTE下进行, 过程和以上 类似。 可见, 本实例与现有技术相比较, 有以下优点:
( 1 )采用单芯片双卡槽或单卡槽, 与现有技术的双芯片双卡槽相比, 在降低成本 和功耗上有较大优势。 (2) 采用 CS在 GSM、 PS优先在 TD/LTE网络, 既能满足用户的使用需求, 又 能够更好地达到业务分流、 平衡网络负荷的作用, 发挥不同网络的优势。
(3 ) 能够实现 PS业务在 LTE\TD网络和 GSM网络的之间的切换, 发挥 TD\LTE 和 GSM互补的优势。 (4) 能很好兼顾到后续网络的升级, 支持 LTE 的网络, 充分的利用现在和将来 技术发展。 综上所述, 通过上述实施例, 采用在单芯片协议桟中实现两种待机模式共存的多 模双待的移动终端,解决了相关技术中 GSM网络负荷较重以及 LTE/TD网络语音业务 感知差的问题, 降低了成本和功耗, 达到了业务分流、 平衡网络负荷的技术效果。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可以用通用 的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布在多个计算装置所 组成的网络上, 可选地, 它们可以用计算装置可执行的程序代码来实现, 从而可以将 它们存储在存储装置中由计算装置来执行,或者将它们分别制作成各个集成电路模块, 或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。 这样, 本发明不限 制于任何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领域的技 术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内, 所作的 任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1. 一种多模双待的移动终端, 包括应用及用户界面层模块、 单芯片协议桟模块和 多模射频物理层处理模块, 其中, 所述单芯片协议桟模块包括- 第一待机单元, 设置为驻留在全球移动通信 GSM网络, 使用所述 GSM网 络提供电路交换 CS域服务,且在时分同步的码分多址 TD网络和长期演进 LTE 网络均丢失覆盖后, 使用 GSM网络提供分组交换 PS域服务; 以及
第二待机单元,设置为驻留在所述 TD网络或所述 LTE网络,使用所述 TD 网络或所述 LTE网络提供所述 PS域服务, 且在所述 TD网络与所述 LTE网络 之间相互切换。
2. 根据权利要求 1所述的移动终端, 其中, 所述第一待机单元还设置为在所述移 动终端开机后, 在以下协议桟中启动第一待机任务: GSM-AS层、 移动性管理 MM层、 呼叫控制 CC/补充业务 SS/短消息业务 SMS层、 人机接口适配 MMIA 层、 会话管理 SM层、 联合移动性管理 UMM层、 通用分组无线业务 GPRS移 动性管理 GMM层。
3. 根据权利要求 1所述的移动终端, 其中, 所述第二待机单元还设置为在所述移 动终端开机后, 在以下协议桟中启动第二待机任务: TD-AS层、 LTE-AS层、 演进的分组系统移动性管理 EMM层、演进的分组系统会话管理 ESM层、 MMIA 层、 SM层、 UMM层、 GMM层。
4. 一种基于权利要求 1至 3中任一项所述移动终端的网络注册方法, 包括: 所述移动终端开机后, 指示物理层中的多模制式射频开启;
所述移动终端通过单芯片协议桟中的多模接入层通知各自的物理层搜索小 区信息, 并在驻留成功的情况下, 向所述 GSM网络发起 CS域注册过程, 向所 述 TD或 LTE网络发起 PS域注册过程。
5. 根据权利要求 4所述的方法, 其中, 当所述移动终端在 CS域和 PS域分别注册 成功后, 所述方法还包括:
所述移动终端配置所述 GSM网络的物理层监听 CS域寻呼, 配置所述 TD 网络或所述 LTE网络的物理层监听 PS域寻呼。
6. 根据权利要求 4所述的方法, 其中, 当所述移动终端在 CS域和 PS域分别注册 成功后, 所述方法还包括以下至少之一:
所述移动终端接收到来自 CC层的 CS域主叫业务时,请求在所述 GSM网 络建立 RR连接, 以所述 CC层在所述 GSM网络中的 CS域连接上进行主叫过 程;
所述移动终端接收到来自 SM层的 PS域主叫业务时,请求在所述 TD网络 建立 RRC连接,以所述 SM层在所述 TD网络中的 PS域连接上进行主叫过程; 所述移动终端接收到来自 ESM层建立数据无线承载 DRB的请求时, 通过 所述 LTE网络建立的 RRC连接将所述建立 DRB的请求发送到网络侧, 以所述 网络侧分配 DRB, 继续 PS域 PDN专有承载主叫过程。
7. 根据权利要求 5所述的方法, 其中, 当所述移动终端在 CS域和 PS域分别注册 成功后, 所述方法还包括以下至少之一:
所述 GSM网络的物理层监听到本用户的 CS域寻呼后, 上报所述 GSM网 络的接入层进行被叫连接建立, 且所述移动终端在接收到来自网络侧的 CC消 息后, 通知 CC层开始被叫业务过程;
所述 TD网络的物理层监听到本用户的 PS域寻呼后,通过所述 TD网络的 接入层通知 GMM层发起 RRC连接建立,且所述移动终端在接收到来自被叫的 SM消息后, 通知 SM层开始被叫业务过程;
所述 LTE网络的 EMM层在空闲态接收到寻呼后,向所述 LTE网络的接入 层发起建立 DRB的请求,所述移动终端通过所述 LTE网络建立的 RRC连接将 所述建立 DRB的请求发送到网络侧,以所述网络侧分配 DRB,继续 PS域 PDN 专有承载被叫业务过程。
8. 根据权利要求 4所述的方法, 其中, 当所述移动终端在 CS域和 PS域分别注册 成功后, 所述方法还包括:
在 TD信号与 LTE信号均低于各自预定的门限值的情况下, 确定所述 TD 网络和所述 LTE网络丢失覆盖,所述移动终端首先去活所述 TD网络或所述 LTE 网络的 PS域业务, 然后激活所述 GSM网络的 PS域业务。
9. 根据权利要求 8所述的方法, 其中, 激活所述 GSM网络的 PS域业务之后, 所 述方法还包括: 所述 TD网络通过测量确定所述 TD信号等于或大于其预定门限值时, 发 起将所述 GSM网络的 PS域业务切换到所述 TD网络的请求; 或者,
所述 LTE网络通过测量确定所述 LTE信号等于或大于其预定门限值时,发 起将所述 GSM网络的 PS域业务切换到所述 LTE网络的请求。
10. 根据权利要求 4所述的方法, 其中, 当所述移动终端在 CS域和 PS域分别注册 成功后, 所述方法还包括:
所述 LTE网络的接入层接收到来自网络侧的切换到所述 TD网络的请求消 息后, 通知所述 LTE网络的物理层释放其配置信息, 停止上行和下行的调度以 及数据的收发;
所述 LTE网络的接入层向所述 TD网络的接入层发起切换请求, 所述 TD 网络的接入层切换成功后, 进行路由更新, ESM层终止规程, SM层进行链路 和数据的制式迁移。
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