WO2011079739A1 - 一种用户设备请求smsonly功能时的处理方法及设备 - Google Patents

一种用户设备请求smsonly功能时的处理方法及设备 Download PDF

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Publication number
WO2011079739A1
WO2011079739A1 PCT/CN2010/080128 CN2010080128W WO2011079739A1 WO 2011079739 A1 WO2011079739 A1 WO 2011079739A1 CN 2010080128 W CN2010080128 W CN 2010080128W WO 2011079739 A1 WO2011079739 A1 WO 2011079739A1
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Prior art keywords
smsonly
function
network
vlr
lai
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PCT/CN2010/080128
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English (en)
French (fr)
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艾明
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电信科学技术研究院
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Publication of WO2011079739A1 publication Critical patent/WO2011079739A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12Messaging; Mailboxes; Announcements
    • H04W4/14Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
    • 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

Definitions

  • the invention relates to a processing method and device when the user equipment requests the SMSonly function.
  • the application is filed on January 4, 2010, and the invention name is "a processing method for the user equipment requesting the SMSonly function" and the application name is "201010033656.5"
  • the present invention relates to mobile communication technologies, and in particular, to a processing method and device when a UE requests an SMSonly function. Background technique
  • ISR Idle State Signalling Reduction
  • MME Mobility Management Entity
  • SGSN Serving GPRS Support Node; GPRS: General Packet Radio Service
  • the UE in the idle state is in the E-UTRAN (Evolved Universal Terrestrial Radio Access Network) and the UTRAN (Universal Terrestrial Radio Access Network) covered by the MME and the SGSN.
  • TAI Transmission AREA Identity
  • LIST list
  • RA Rasteret Radio Access Network
  • the activation of the ISR is controlled by the network, and the MME/SGSN sets whether to activate the ISR by using the TAU/ACCEPT (TAU/RAU Accepted; TAU: Traking Area Update, RAU: Routing Area Update, Routing Area Update) message.
  • TAU/ACCEPT TAU/RAU Accepted; TAU: Traking Area Update, RAU: Routing Area Update, Routing Area Update
  • the UE activates or deactivates the ISR according to the indication.
  • CSFB Circuit Switched Fallback; circuit switching back; usually abbreviated as CSFB, or CS Fallback,
  • CSFB supports LTE (Long Term Evolution) with traditional 2G/3G networks.
  • CS service features include CS call, SMS (Short Message Service), MT-LCS (Mobile terminating Location Services), MO-LCS (Mobile Originating Location Services), etc. ,
  • the UE of LTE attaches to BPS services (EPS service; EPS: Evolved Packet System, evolved packet system) and non-EPS services (non-EPS service) by performing a joint ATTACH (attachment) process in the LTE system.
  • EPS Evolved Packet System
  • non-EPS service non-EPS services
  • the SGs interface is established between the mobility management entity MME of the EPS services and the mobility management entity MSC/VLR (Mobile Switching Center/Accessed Location Registor) of the non-EPS services. Residing in E-UTRAN.
  • a CS call arrives at the MSC/VLR, if the UE is in the IDLE state, the MSC/VLR pages the UE through the MME, and after receiving the paging, the UE first performs an SR (service request) process, and then FALL BACK (Rewind) Complete the call to the 2G/3G system.
  • SR service request
  • FALL BACK Rewind
  • SMSonly short message feature only
  • SMSonly refers to the SMSonly feature proposed by the network operator that the network does not deploy CSFB but needs to support SMS. Therefore, the SMSonly feature introduced in the 3GPP LTE network needs to guide the voice centric (central) LTE UE of CS as Access through a traditional 2G/3G network; retaining a UE requiring data centric in an LTE network, and providing an SMS service through the LTE network.
  • the UE that needs SMSonly is attached to the EPS service and the non-EPS service by performing the joint ATTACH process in the LTE system.
  • the UE needs to send the SMSonly support to the network, indicating that it needs to use EPS SERVICES and SMS. business. If the network supports SMSonly, in the ATTACH ACCEPT message, the network is instructed to support SMSonly.
  • an SGs interface is established between the mobility management entity MME of the EPS services and the mobility management entity MSC/VLR of the non-EPS services, and the UE resides in the E-UTRAN.
  • MT-SMS Mobile Tenninating-SMS
  • MSC/VLR pages the UE through the MME, and after receiving the paging, the UE first establishes signaling with the network. Connect, then you can go through NAS (Non Access The Stratum, non-access stratum signaling message accepts the MT-SMS from the MSC/VLR, at which point the UE will not FALL BACK to the 2G/3G network.
  • NAS Non Access The Stratum, non-access stratum signaling message accepts the MT-SMS from the MSC/VLR, at which point the UE will not FALL BACK to the 2G/3G network.
  • SMSonly and SMSoverSGs have the same meaning and can be used interchangeably.
  • the ISR is not activated in the SGSN, and the UE needs to perform the joint ⁇ /LA process after returning to the E-UTRAN, which will result in the inability to use the SMSonly function.
  • the technical problem to be solved by the present invention is to provide a processing method and device when the UE requests the SMSonly function.
  • An embodiment of the present invention provides a processing method when a UE requests an SMSonly function, and includes the following steps:
  • the network indicates that the UE's SMSonly function request is successful
  • the UE When the UE accesses through the universal terrestrial radio access network UTRAN or the GSM/EDGE radio access network (GSM/EDGE Radio Access Network, GSM/EDGE radio access network), it operates according to CLASS-C MODE.
  • GSM/EDGE Radio Access Network GSM/EDGE radio access network
  • the mobility management entity MME device is provided in the embodiment of the present invention, including:
  • a receiving module configured to receive a request message that the UE requests the SMSonly function
  • An indication module configured to indicate to the UE an SMSonly when determining that the network supports the SMSonly function The feature request was successful.
  • a user equipment is provided in the embodiment of the present invention, including:
  • a determining module configured to determine whether to access through UTRAN or GERAN;
  • an SGSN device is provided in the embodiment of the present invention, including:
  • a receiving module configured to receive an RAU request message of the MS
  • the processing module is configured to determine and activate the ISR when the user equipment indicates that the CSFB is not supported.
  • the embodiment of the present invention provides a second processing method when the UE requests the SMSonly function, including the following steps:
  • the receiving UE includes a TAU request message requesting an SMSonly function request;
  • the MME determines the LAI for the UE, and establishes an SGs interface with the MSC/VLR inferred according to the LAI;
  • the MME sends a TAU ACCEPT message to the UE, indicating that its SMSOnly function request is successful.
  • the MME device is provided in the embodiment of the present invention, including:
  • a receiving module configured to receive, in a joint TA/LA update process, a TAU request message that the UE includes a request for an SMSonly function
  • a processing module configured to determine that the network supports the SMSonly function, determine an LAI for the UE, and establish an SGs interface with the mobile switching center/visit location register MSC VLR inferred according to the LAI;
  • the indication module is configured to send a TAU ACCEPT message to the UE, where the message indicates that the SMSOnly function request is successful.
  • a third processing method when the UE requests the SMSonly function is provided, which includes the following steps:
  • the SGSN receives the CS PAGING message delivered by the MME;
  • the SGSN performs a paging procedure or a CS PAGING procedure in which the CN Domain Indicator is set to CS DOMAIN.
  • the SGSN device is provided in the embodiment of the present invention, including:
  • a receiving module configured to receive a CS PAGING message delivered by the MME
  • the paging module is configured to perform a paging process or a CS PAGING process in which the CN Domain Indicator is set to CS DOMAIN.
  • a fourth processing method when the UE requests the SMSonly function including the following steps:
  • the UE receives the CS PAGING message of the SGSN in the GERAN or the UTRAN; if the UE operates in the CLASS-C mode, accesses the evolved universal terrestrial radio access network E-UTRAN;
  • the MT-SMS related paging message is received in the E-UTRAN for processing.
  • a user equipment is provided in the embodiment of the present invention, including:
  • a receiving module configured to receive a CS PAGING access module of the SGSN in the GERAN or the UTRAN, to determine that the UE accesses the B-UTRAN when operating in the CLASS-C mode, and receives the received in the E-UTRAN
  • the MT-SMS related paging message is processed.
  • the network after receiving the request message that the UE requests the SMSonly function, the network indicates that the SMSonly function request of the UE is successful, and when the UE accesses through the UTRAN/GERAN, operates according to the CLASS-C MODE mode. Instead of doing a joint RAU.
  • the program can Solving the problem that the SMSonly function cannot be used when the SGSN does not activate the ISR, and the UE needs to perform the joint TA/LA after returning to the E-UTRAN, and when the UE moves between the UTRAN and the E-UTRAN, the Gs interface and Frequent demolition of the SGs interface brings a large load to the network.
  • the MME determines the LAI for the UE, and establishes and infers according to the LAI. MSC/VLR SGs interface; then the MME sends a TAU ACCEPT message to the UE indicating that its SMSOnly function request is successful.
  • the solution can solve the problem that the SMSonly function cannot be used in the process that the SGSN does not activate the ISR, and the UE needs to perform the joint TA/LA after returning to the E-UTRAN, and, for the DATA ONLY UE, the UE cannot interact with the MSC.
  • the problem and when the UE moves between the UTRAN and the E-UTRAN, causes the Gs interface and the SGs interface to be frequently demolished to bring a large load to the network.
  • the SGSN after the SGSN receives the CS PAGING message transmitted by the MME, the SGSN performs a paging process or a CS PAGING process in which the CN Domain Indicator is set to CS DOMAIN. That is, the CS PAGING message transmitted by the MME to the SGSN, the SGSN uses the CS PAGING procedure or the PAGING procedure indicated as CS-DOMAIN when paging the UE, and if the Uli receives the paging in the GERAN or UTRAN, operates according to the CLASS-C mode.
  • the UE back to the E-UTRAN access, continues processing in accordance with the received MT-SMS paging message in the E-UTRAN.
  • This solution can solve the problem that the UE cannot interact with the MSC for the DATA ONLY UE.
  • FIG. 1 is a schematic diagram of a location relationship of an SMSonly scenario according to an embodiment of the present invention
  • FIG. 2 is a schematic flow chart of a processing method when a UE requests an SMSonly function according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of an MME device according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of an SGSN device according to an embodiment of the present invention
  • FIG. 6 is a schematic flowchart of an implementation method of a second processing method when a UE requests an SMSonly function according to an embodiment of the present disclosure
  • FIG. 7 is a schematic structural diagram of a mobility management entity device according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a third embodiment of a processing method for a UE to perform an SMSonly function according to an embodiment of the present invention.
  • FIG. 9 is a schematic flowchart of a fourth processing method when a UE requests an SMSonly function according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of an SGSN device according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a user equipment according to an embodiment of the present invention. detailed description
  • the SMSonly function is implemented, in the joint ATTACH process, after the UE is successfully attached, the SGs interface is established between the mobility management entity MME of the EPS services and the mobility management entity MSC/VLR of the non-EPS services, and the UE resides in the E. -UTRAN.
  • the MSC VLR pages the UE through the MME.
  • the UE After receiving the paging, the UE first establishes a signaling connection with the network, and then can receive the message through the NAS signaling message.
  • MT-SMS from MSC VLR. It should be noted that at this time, the UE will not FALL BACK to the 2G/3G network.
  • the UE will not FALLBACK to GliRAN/UTRAN;
  • EUTRAN and GERAN/UTRAN may not need to overlap. This one can only be used when the UE only uses SMS, not other services of CSFB.
  • the configuration of the correspondence between the TA (traking area) and the LA (Location Area) at the MME can be reduced; 2. Significantly reduce the number of MSC/VLRs that support SMSoverSGs in the network. Simply deploy a few (at least one) MSC/VLR that supports SMSoverSGs.
  • the MSC/VLR inferred by the MME may be a virtual MSC VLR, and the UTRAN and GERAN covered by the MSC/VLR and the E-UTRAN location area where the UE is currently located may be Do not overlap.
  • scenario a case a
  • the advantage of this scenario is that it is not required to upgrade all the MSCs/VLRs in the network to support the SGs interface. It is not necessary to configure the correspondence between TA and LA on the MME. Such network deployment operation costs are relatively low.
  • scenario b (case b), in which case the UTRAN covered by the MSC/VLR and the E-UTRAN location area where the UE is currently located overlap.
  • scenario b case b
  • the mapping between TA and LA needs to be configured on the MME, and the MSC/VLR around the MME needs to support SGs.
  • Figure 1 is a schematic diagram showing the positional relationship of the SMSonly scene.
  • UTRAN-1 there are two UTRAN coverages, namely UTRAN-1 and UTRAN-2; the location area code of UTRAN-1 is LAC-1, and the routing area code is RAC-1.
  • the location code of UTRAN-2 is LAC-2, and there is also an EUTRAN coverage.
  • the two location areas covered are labeled TAI-1 and TAI-2 respectively.
  • the network indicates that its LAC is LAC-2, and the actual UTRAN coverage is LAC-1.
  • the location update (location update) of the INTER-MSC is required to ensure that the UE can use the short message service, as described in the 3GPP specification 23.272.
  • the following describes the joint TA/LA procedure initiated by the UE to implement CSFB and/or SMSonly. This procedure applies to the case where the UE moves from the UTRAN into the E-UTRAN.
  • the MME will extract the LAI (Location Area ID) according to the GUTI, and select an MSC VLR according to the LAI to perform the location update process. If the MME does not have a TA/LA correspondence, or if the VLR corresponding to the LAI does not support the SGs interface, this step may fail.
  • GUTI Globally Unique Temporary Identity
  • the UE initially accesses in the E-UTRAN, and requests and obtains SMSonly.
  • the network registers the UE to the special VLR, and indicates the LAI of the special VLR (referred to as LAC-2) to the UE.
  • LAC-2 the LAI of the special VLR
  • the UE is an EPS/IMSI (International Mobile Subscriber Identity) attached in the E-UTRAN, and requests the SMSonly function.
  • the network supports SMSonly and indicates to the UE that its SMSonly function request is successful.
  • the UE accesses through the UTRAN, the UE needs to perform a joint LA/RA update procedure (because the UE is IMSI ATTACHED at this time).
  • the UE needs to indicate to the network whether it supports CSFB and/or SMSonly. In this scenario, if the UE indicates that CSFB and / ⁇ SMSonly are supported, the SGSN will deactivate the ISR and will indicate the current location.
  • LAI to the UE (in this case, LAC-1)
  • the Inter-MSC location update process is completed, and the SGs interface between the MME and the MSC/VLR-2 is deleted.
  • the SGSN and the MSC VLR-1 The Gs interface will be established.
  • the address of the MSC/VLR-1, SGSN, and MME is recorded in the MM CONTEXT (User Equipment Mobility Management Context, MM: Mobility Management, Mobility Management) of the UE in the HLR (Home Location Register); Due to the CANCEL LOCATION procedure, the HLR does not record the address of the MSC/VLR-2.
  • the nouns HLR and HSS are used interchangeably, and in the present application they have no functional distinction, referring to the same entity in the network.
  • the UE Since the ISR is not activated, the UE needs to perform joint TA/LA after returning to the E-UTRAN. process. Because the UE obtains the P-TMSI and the RAI in the UTRAN, the VLR inferred by the MME according to the LAI extracted by the GUTI generated by the P-TMSI and the RAI mapping reported by the UE in the process is likely to not support the SGs interface. MSC VLR-1 (if the network is deployed according to the scenario a), this will directly lead to the problem 1: Unable to use the SMSonly function,
  • the inferred VLR supports the SGs interface (for example, in case b, assuming all MSCs/VLRs in the network support SGs), the SGs interface is re-established and the Gs interface is removed.
  • the address of the MSC/VLR (the MSC/VLR supporting the SGs interface), the SGSN, and the MME is registered in the UE MM CONTEXT.
  • the MME may instruct the UE to activate the ISR.
  • DATA ONLY that is, only data services such as packet switching
  • PS-MODE Packet Switched
  • - MODE packet switched-mode UE, is a signaling procedure that does not require CS-MODE (Circuit Switch-Mode).
  • the technical solution provided by the present invention will solve the relationship between SMSonly and ISR, and is used to ensure that the SMSonly UE can keep the ISR in an active state in the IDLE mode.
  • the specific embodiments are described below in conjunction with the drawings.
  • FIG. 2 is a schematic flowchart of a processing method when a UE requests an SMSonly function, as shown in the figure, which may include the following steps:
  • Step 201 Receive a request message that the UE requests the SMSonly function.
  • Step 202 The network indicates that the UE's SMSonly function request is successful.
  • Step 201 and step 202 can be implemented in accordance with existing methods.
  • the UE passes The SMSonly function in the ATTACH REQUST message indicates that the SMSonly function is requested from the network; the network informs the UE that its SMSonly function request is successful through the SMSonly indication in the ATTACH ACCEPT message.
  • the UE requests the SMSonly function from the network by using the SMSonly function of the TAU REQUST message; the network informs the UE that the SMSonly function request is successful through the SMSonly indication in the TAU ACCEPT message.
  • Step 203 When the UE accesses through the UTRAN or the GERAN, the operation is performed according to the CLASS-C MODE (CLASS-C mode).
  • CLASS-C mode refers to an operation mode of MS (Moble Station).
  • MS Mobile Station
  • MS is the name of the mobile terminal in the 2G specification.
  • the mobile terminal is called the UE.
  • the two device nouns in this application are interchangeable.
  • the CLASS-C mode can also generally include the CLASS-C mode of operation in A/Gb mode and the PS mode of operation in Iu mode.
  • A/Gb mode the CLASS-C mode of operation in A/Gb mode
  • PS mode of operation the PS mode of operation in Iu mode.
  • the MS operates in one of three modes of operation. These three modes are determined by the network capabilities and the network domain to which the MS is attached (CS domain or PS domain), and whether the MS can simultaneously operate the PS and CS domain services.
  • the three modes of operation are:
  • CLASS-A mode of operation The MS is attached to the CS domain and the PS domain, and the MS supports simultaneous operation of PS and CS domain services.
  • CLASS-B mode of operation The MS is attached to the CS domain and the PS domain, but at some point, the MS can only operate the PS domain service or can only operate the CS domain service.
  • MS is only attached to the PS domain.
  • the MS In the Iu mode, the MS operates in one of three other modes of operation. However, these other modes of operation differ from the three modes of operation of the A/Gb mode.
  • the Iu mode RAN Radio Access Network
  • CN Core Network, Core Network
  • UTRAN/GERAN-Iu can provide paging co-ordination functions for CS services and PS services.
  • Iu mode the other three modes of operation of MS are:
  • CS/PS mode of operation The MS is attached to the CS domain and the PS domain, and the MS has the ability to operate both PS and CS domain services. This mode is comparable to the CLASSS-A mode of operation in A/Gb mode. The ability to operate both PS and CS services depends on the capabilities of the terminal (for example, an A/Gb CLASS B mode of operation terminal, which cannot operate CS and PS services simultaneously, after it becomes the PS/CS mode of operation in Iu mode , the same restrictions may exist).
  • PS mode of operation The MS is only attached to the PS domain, and the MS can only operate the services of the PS domain. However, this does not preclude the provision of CS-LIKE services (such as CS services) through the PS domain, such as VoIP. This mode is equivalent to the CLASS-C mode of operation in A/Gb mode.
  • CS mode of operation The MS is only attached to the CS domain, and the MS may only operate the services of the CS domain. However, this does not preclude the provision of PS-LIKE services (PS-like services) through the CS domain.
  • PS-LIKE services PS-like services
  • the method when operating according to the CLASS-C MODE, may include: performing a RAU process, in the RAU process, the MS indicates to the network that the MS does not support CSFB.
  • the UE requests SMSonly and the network indicates that the UE has its SMSonly function request successful, after the UE accesses through the UTRAN or the GERAN, only the RAU procedure is performed, and the joint RAU procedure is not performed.
  • the UE indicates to the network that it does not support CSFB, and the network can activate the ISR.
  • the network can keep the SGs interface from being removed.
  • MT-SMS Mobile terminating-SMS, mobile terminated short message
  • the SGs interface, the HSS (Home Subscriber Server), the SGSN registration, the MSC VLR registration, and the MT-SMS are still reachable.
  • the SMS GW Short Message Gateway
  • the SMS GW can send the MT-SMS to the SGSN, or to the MSC/VLR and then to the MME through the SGs interface.
  • an MME device, a user equipment, and an SGSN device are also provided in the embodiment of the present invention.
  • the principle of solving the problem by these devices and the requesting of the SMS by the UE The processing method of the time can be similar, so the implementation of these devices can be referred to the implementation of the method one, and the repeated description will not be repeated.
  • FIG. 3 is a schematic structural diagram of an MME device. As shown in the figure, the MME may include:
  • the receiving module 301 is configured to receive a request message that the UE requests the SMSonly function.
  • the indication module 302 is configured to indicate to the UE that the SMSonly function request is successful when determining that the network supports the SMSonly function.
  • the indication module may include: a first indication unit and/or a second indication unit, where: the first indication unit is configured to: in the attaching process, request the network to receive the UE by using an SMSonly function indication in the ATTACH REQUST message After the SMSonly function, the SMS is notified by the SMSonly indication in the ATTACH ACCEPT message that the SMSonly function request is successful.
  • a second indication unit configured to notify the UE of the SMSonly function request by using an SMSonly indication in the TAU ACCEPT message after receiving the SMSonly function from the TAU RBQUST message to the network in the joint tracking area update process. success.
  • Figure 4 is a schematic diagram of the structure of the user equipment. As shown in the figure, the user equipment may include:
  • a determining module 401 configured to determine whether to access through UTRAN or GERAN;
  • the operation module 402 is configured to operate according to CLASS-C MODE when accessing through UTRAN or GERAN.
  • the operation module may be further configured to perform a routing area update RAU process when operating according to the CLASS-C MODE, and indicate to the network that the CSFB is not supported during the RAU process.
  • an SGSN is also provided, which will be described below.
  • Figure 5 is a schematic diagram of the structure of the SGSN device. As shown in the figure, the SGSN may include:
  • the receiving module 501 is configured to receive an RAU request message of the MS.
  • the processing module 502 is configured to determine and activate the ISR when the user equipment indicates that the CSFB is not supported, and the second scheme is described below.
  • FIG. 6 is a schematic flowchart of a method for processing a second method when a UE requests an SMSonly function. As shown in the figure, the following steps may be included:
  • Step 601 During the joint TA/LA update process, the receiving UE includes an SMSonly function. Requesting a TAU request message;
  • Step 602 Determine that the network only supports the SMSonly function, the MME determines the LAI for the UE, and establishes an SGs interface with the MSC VLR that is inferred according to the LAI.
  • Step 603 The MME sends a TAU ACCEPT message to the UE, where the message indicates that the SMSOnly function request is successful.
  • the MSC/VLR that the MME chooses to establish the SGs interface for the UE may be a virtual MSC/VLR, and the so-called virtual MSC/VLR means that the location area covered by the MSC VLR and the tracking area covered by the current MME may not be Overlap.
  • the UE requests SMSonly and the network supports SMSonly. If the MME does not configure the relationship between the TA/LA (that is, only a small number of MSC/VLR support SGs are deployed in the network), regardless of Whether the UE uses the GUTI obtained by the P-TMSI/RAI mapping to identify itself, the MME can determine an MSC VLR (ie, virtual MSC/VLR) according to a special algorithm to establish an SGs interface.
  • MSC VLR ie, virtual MSC/VLR
  • the method when performing step 602, the method may include:
  • the location area identifier LAI is extracted according to the GUTI; a VLR can be inferred by the LAI.
  • the MME establishes an SGs interface with the VLR through an Update Location procedure.
  • the MME allocates a default LAI, and through the default LAI, can infer a VLR and establish an SGs interface with the VLR through the Update Location procedure.
  • the VLR can be implemented according to the prior art.
  • TS23.236 For details, please refer to TS23.236.
  • the MME extracts an LAI according to the GUTI. Mapping P-TMSI/RAI to GUTI, and extracting one LAI from the GUTI, which can be implemented according to the prior art Carry out implementation.
  • the MME infers a VLR through this LAI. If the VLR supports the SGs interface, the MME can successfully establish an SGs interface with the VLR through the Update Location procedure, and then step 603 is performed.
  • the Update Location process may be performed according to an existing procedure, and is mainly used to establish an SGs interface between the MME and the VLR, and is also used to update the registration status of the UE at the VLR.
  • the MME can assign a default LAI.
  • a VLR can be inferred by this default LAI. If the VLR supports the SGs interface, the MME can successfully establish an SGs interface with the VLR through the Update Location process, and then step 603 is performed.
  • the MME After receiving the message that the UE requests the SMSOnly function, the MME determines whether the network is configured to support only the SMSonly feature. If yes, the MME allocates the default LAI directly, and infers a VLR through the LAI, and then the MME can successfully establish and update through the Update Location process. The SGs interface between the VLRs, and then step 603 is performed.
  • the VLR inferred by the default LAI usually the virtual VLR,
  • the network only supports the SMSonly feature it can include:
  • the MME does not configure the relationship between the TA/LA, it is determined that the network only supports SMSonly; or, when it is determined that the MME is configured to identify an indication that only the SMSonly feature is supported in the network, it is determined that the network only supports SMSonly.
  • one method when it is judged that only the SMSOnly feature is supported in the network, or how to determine that only a small number of MSC/VLR support SGs are deployed in the network, one method is: If the MME does not configure the relationship between the TA/LA, The network is considered to support only SMSonly. Another method is to configure an indication in the MME that only the SMSonly feature is supported in the network. This indication can be the default LAI configured in the MME. According to the actual network deployment situation, that is, the MSC and the VLR are usually set together (such as the same place, the same physical entity, etc.), so when referring to the MSC/VLR and the VLR mentioned in this application, it refers to the MSC and the set together. VLR.
  • the embodiment of the present invention further provides a mobility management entity device.
  • the principle of the device is similar to the processing method of the UE when the SMS request function is requested. Implementation, repetition will not be repeated.
  • FIG. 7 is a schematic structural diagram of a mobility management entity device.
  • the MME may include: a receiving module 701, configured to receive, in a joint TA/LA update process, a TAU request message that includes a request for an SMSonly function request;
  • the processing module 702 is configured to determine that the network only supports the SMSonly function, allocate a default LAI to the UE, and establish an SGs interface with the mobile switching center/visit location register MSC/VLR pointed to by the default LAI;
  • the indication module 703 is configured to send a TAU ACCEPT message to the UE, where the SMSOnly function request success indication is indicated in the message.
  • the processing module may be further configured to select a virtual MSC VLR to establish an SGs interface.
  • the processing module may include:
  • An LAI determining unit configured to: when determining that the GUTI included in the TAU request message is obtained by P-TMSI/RAI mapping, extracting an LAI according to the GUTI, and inferring a VLR by using the LAI;
  • An interface unit configured to: if the VLR supports the SGs interface, establish an SGs interface with the VLR through an Update Location procedure; if the VLR does not support the SGs interface, assign a default LAI, and infer a one through the default LAI.
  • the VLR through the Update Location process, establishes an SGs interface with the VLR.
  • the processing module may be further configured to determine whether the network only supports the SMSonly feature, and then assign a default LAI, and infer a VLR through the LAI, and establish an SGs interface with the VLR through an Update Location procedure.
  • the processing module may be further configured to: when determining whether the network only supports the SMS only feature, if the MME does not configure the relationship between the TA/LA, determine that the network only supports SMSonly; or, determine that the MME is configured to identify the network. When only the indication of the SMSonly feature is supported, it is determined that the network only supports SMSonly.
  • the third embodiment is proposed in the embodiment of the present invention, and the third embodiment is described below. It should be noted that in Option 1, Problem 2 still exists, so Option 1 and Option 3 can be combined to solve both Problem 1 and Problem 2.
  • the SMS-related CS PAGING message is transmitted on the S3 interface, and the UE operating in the CLASS-C mode can select the E-UTRAN after receiving the CS PAGING message in the GERAN or UTRAN.
  • the paging is sent to the SGSN at the same time as the E-UTRAN paging, and the paging procedure or CS of the CN Domain Indicator set to the CS DOMAIN (CS domain) is performed by the SGSN. PAGING process. If the UE responds to the page in E-UTRAN, it proceeds according to the existing procedure.
  • the UH operating according to the CLASS-C mode immediately selects the E-UTRAN access, and according to the E- The MT-SMS related paging is received in the UTRAN for processing.
  • the UE When the UE chooses to return to the E-UTRAN access, it may also receive a page from the MME, at which time it is processed according to the procedure of receiving the page in the E-UTRAN.
  • the paging is sent to the SGSN at the same time as the E-UTRAN paging, and the paging procedure or CS of the CN Domain Indicator set to the CS DOMAIN (CS domain) is performed by the SGSN. PAGING process. If the UE responds to the page in E-UTRAN, it proceeds according to the existing procedure.
  • the UE operating in the CLASS-C mode immediately selects the E-UTRAN access, and according to the E- Received MT-SMS related in UTRAN Paging to process.
  • UEs that do not operate in CLASS-C mode can respond directly to MS (:.
  • FIG. 8 is a schematic flowchart of a third processing method when the UE requests the SMSonly function. As shown in the figure, the following steps may be included:
  • Step 801 The SGSN receives the CS PAGING message delivered by the MME.
  • Step 802 The SGSN performs a paging process or a CS PAGING process in which the CN Domain Indicator is set to CS DOMAIN.
  • Figure 8 shows an implementation of the SGSN.
  • the implementation on the UE is as follows:
  • FIG. 9 is a schematic flowchart of a fourth implementation process of the UE when the UE relies on the SMSonly function. As shown in the figure, the following steps may be included:
  • Step 901 The UE receives the CS PAGING message of the SGSN in the GERAN or the UTRAN.
  • Step 902 If the UE operates in the CLASS-C mode, access to the E-UTRAN;
  • Step 903 After accessing the E-UTRAN, according to the MT-SMS related paging message received in the E-UTRAN, perform corresponding processing.
  • an SGSN device and a user equipment are also provided in the embodiment of the present invention. Since the principle of solving the problem of these devices is similar to the processing method 3 and method 4 when the UE requests the SMSonly function, the implementation of these devices is implemented. See Method 3 and Method 4 for implementation. The repetitions are not repeated here.
  • the SGSN may include: a receiving module 1001, configured to receive a CS PAGING message delivered by the MME;
  • Paging module 1002 configured to page the UE, perform CN Domain Indicator setting to CS
  • FIG. 11 is a schematic structural diagram of a user equipment. As shown in the figure, the UE may include:
  • the receiving module 1101 is configured to receive a CS PAGING message in the GERAN or the UTRAN, and the access module 1102 is configured to: when determining that the UE operates in the CLASS-C mode,
  • E-UTRAN and processed according to the received MT-SMS paging message in E-UTRAN
  • the UE requesting SMSonly performs RAU in GERAN and UTRAN instead of performing joint RAU.
  • the solution can solve the problem that the SMSonly function cannot be used when the SGSN does not activate the ISR, and the UE needs to perform the joint TA/LA process after returning to the E-UTRAN, and when the UE moves between the UTRAN and the E-UTRAN, Frequent demolition of the Gs interface and the SGs interface brings a large load to the network.
  • the MME determines the LAI for the UE, and establishes an MSC VLR that is inferred according to the LAI. SGs interface; then the MME sends a TAU ACCEPT message to the UE, indicating that its SMSOnly function request is successful.
  • the solution can solve the problem that the SMSonly function cannot be used when the SGSN does not activate the ISR, and the UE needs to perform the joint TA/LA process after returning to the E-UTRAN, and the UE cannot interact with the MSC for the DATA ONLY UE.
  • the problem and when the UE moves between the UTRAN and the E-UTRAN, causes the Gs interface and the SGs interface to be frequently demolished to bring a large load to the network.
  • the CS PAGING message transmitted by the MME to the SGSN uses the CS PAGING procedure or the PAGING procedure indicated as CS-DOMAIN when paging the UE, and if the UE receives the paging in GERAN or UTRAN, according to CLASS-C
  • the mode-operated UE returns to the E-UTRAN access, and continues processing in accordance with the received MT-SMS paging message in the E-UTRAN.
  • This solution can solve the problem that the UE cannot interact with the MSC for the DATA ONLY UE.
  • embodiments of the present invention can be provided as a method, system, or computer program product.
  • the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware.
  • the present invention may employ a computer usable storage medium (including but not limited to disk storage, in one or more of which contains computer usable program code.
  • the present invention is directed to a method, apparatus (system), and computer program according to an embodiment of the present invention. 0128
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the device implements the functions specified in one or more blocks of a flow or a flow and/or a block diagram of the flowchart
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device
  • the instructions provide steps for implementing the functions specified in a block or blocks of a flow or a flow and/or a block diagram of a flowchart.

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Description

一种用户设备请求 SMSonly功能时的处理方法及设备 本申请要求在 2010年 1月 4日提交中国专利局、申清号为 201010033656.5 发明名称为 "一种用户设备谛求 SMSonly功能时的处理方法及设备"的中国专 利申请的优先权, 其全部内容通过引用结合在本申请中. 技术领域
本发明涉及移动通信技术,特别涉及一种 UE请求 SMSonly功能时的处理 方法及设备。 背景技术
一、 ISR ( Idle State Signalling Reduction, 空闲状态信令优化)功能简介。 ISR是空闲态信令减少技术。 当 UE ( User Equipment, 用户设备) 同时注 册到 MME ( Mobility Management Entity, 移动性管理实体 )和 SGSN ( Serving GPRS Support Node,服务 GPRS支持节点; GPRS: General Packet Radio Service 通用分组无线业务)上并激活 ISR后, 空闲态的 UE在该 MME和 SGSN所覆 盖的 E-UTRAN ( Evolution- Universal Terrestrial Radio Access Network, 演进的 通用陆地无线接入网)和 UTRAN ( Universal Terrestrial Radio Access Network, 通用陆地无线接入网)之间的注册 TAI ( TRACKING AREA Identity, 跟踪区标 识) LIST (列表)和 RA ( Routing AREA, 路由区)之间移动时, 不需要和 网络进行信令交互。 ISR的激活由网络控制, MME/SGSN通过在 TAU/ ACCEPT ( TAU/RAU接受;其中, TAU: Traking Area Update,跟踪区更新; RAU: Routing Area Update, 路由区更新) 消息中设置是否激活 ISR, UE根据该指示来激活 或去激活 ISR。
二、 CSFB ( Circuit Switched Fallback, 电路交换回退; 通常简写为 CSFB、 或者 CS Fallback, )功能简介。
CSFB是用传统的 2G/3G网络来支持 LTE ( Long Term Evolution, 长期演 进)终端的 CS ( Circuit Switch, 电路交换 )业务的特性。 CS业务特性包括 CS 呼叫、 SMS ( Short Message Service,短信息服务)、 MT-LCS ( Mobile terminating Location Services,移动终止的定位服务)、 MO-LCS( Mobile Originating Location Services, 移动发起的定位服务)等,
LTE的 UE通过在 LTE系统中执行联合 ATTACH (附着)过程, 附着到 BPS services( EPS服务; EPS: Evolved Packet System,演进分组系统)和 non-EPS services (非 EPS服务)。 成功附着后, EPS services的移动性管理实体 MME 和 non-EPS services的移动性管理实体 MSC/VLR ( Mobile Switching Center/ Visited Location Registor, 移动交换中心 /访问位置寄存器)之间建立了 SGs接 口, UE驻留在 E-UTRAN中。 当有 CS呼叫到达 MSC/VLR时, 如果 UE处于 IDLE (空闲)态, MSC/VLR通过 MME寻呼 UE, UE收到寻呼后, 首先执行 SR ( service request, 业务请求)过程, 然后 FALL BACK (回退)到 2G/3G系 统中完成呼叫。
三、 SMSonly (仅短消息特性)功能简介。
SMSonly是指网络运营商提出的希望其网络不部署 CSFB但是需要支持 SMS, 所以在 3GPP LTE网络中引入的 SMSonly这一特性, 其需求是将需要 CS的话音 centric (为中心)的 LTE UE引导为通过传统 2G/3G网络接入; 将 需要数据 centric的 UE保留在 LTE网络中, 并通过 LTE网络提供 SMS服务。
需要 SMSonly的 UE, 通过在 LTE系统中执行联合 ATTACH过程, 附着 到 EPS services和 non-EPS services, 在该联合 ATTACH过程中, UE需要向网 络发送 SMSonly这一个支持, 表示其需要使用 EPS SERVICES 和 SMS业务。 如果网络支持 SMSonly, 则在 ATTACH ACCEPT (附着接受)消息中, 指示网 络支持 SMSonly。成功附着后, EPS services的移动性管理实体 MME和 non-EPS services 的移动性管理实体 MSC/VLR之间建立了 SGs接口, UE 驻留在 E-UTRAN中。 当有 MT-SMS ( Mobile tenninating-SMS, 移动终止的 SMS )到 达 MSC/VLR时, 如果 UE处于 IDLE态, MSC VLR通过 MME寻呼 UE, UE 收到寻呼后, 首先建立和网络的信令连接, 然后即可通过 NAS ( Non Access Stratum, 非接入层)信令消息接受来自 MSC/VLR的 MT-SMS, 此时 UE不会 FALL BACK到 2G/3G网络的。
CSFB 和 /或 SMSonly 与 ISR之间的关系可参见 3GPP 的 23.272 的 S2-097374更新 CSFB和 SMSoverSGs ( "经 SGs接口的 SMS" ) 的说明可以 参见 3GPP的 23.272。 在本申请文件中, SMSonly和 SMSoverSGs具有相同含 义, 可以互换使用。
现有技术的不足在于存在以下问题:
问题一、 在 SGSN没有激活 ISR, 而 UE返回到 E-UTRAN后需要执行联 合 ΤΛ/LA过程中, 将导致无法使用 SMSonly功能。
问题二、针对 DATA ONLY的 UE,可能出现 UE无法和 MSC交互的情形, 问题三、 当 UE在 UTRAN和 E-UTRAN之间移动时, 将导致 Gs接口和
SGs接口的频繁的拆建, 给网络带来较大的负荷。 发明内容
本发明所解决的技术问题在于提供了一种 UE请求 SMSonly功能时的处理 方法及设备。
本发明实施例中提供了一种 UE请求 SMSonly功能时的处理方法之一,包 括如下步骤:
接收 UE请求 SMSonly功能的请求消息;
网络指示 UE的 SMSonly功能请求成功;
在 UE通过通用陆地无线接入网 UTRAN或者 GSM/EDGE无线接入网络 GERAN ( GSM/EDGE Radio Access Network, GSM/EDGE无线接入网络)接 入时, 按照 CLASS-C MODE进行操作 .
根据上述一种 UE请求 SMSonly功能时的处理方法之一,本发明实施例中 相应地提供了一种移动性管理实体 MME设备, 包括:
接收模块, 用于接收 UE请求 SMSonly功能的请求消息;
指示模块, 用于在确定网络支持 SMSonly功能时, 向 UE指示 SMSonly 功能请求成功。
根据上述一种 UE请求 SMSonly功能时的处理方法之一,本发明实施例中 相应地提供了一种用户设备, 包括:
确定模块, 用于确定是否通过 UTRAN或者 GERAN接入;
操作模块,用于在确定通过 UTRAN或者 GERAN接入时,按照 CLASS-C
MODE进行操作。
根据上述一种 UE请求 SMSonly功能时的处理方法之一,本发明实施例中 相应地提供了一种 SGSN设备, 包括:
接收模块, 用于接收 MS的 RAU请求消息;
处理模块, 用于当用户设备指示不支持 CSFB时, 判断并激活 ISR。
本发明实施例中提供了一种 UE请求 SMSonly功能时的处理方法之二,包 括如下步骤:
在进行 TA/LA更新过程中, 接收 UE包含请求 SMSonly功能请求的 TAU 请求消息;
确定网络支持 SMSonly功能, MME为该 UE确定 LAI, 并建立与根据该 LAI所推断出的 MSC/VLR的 SGs接口;
MME向 UE发送 TAU ACCEPT消息, 该消息中指示其 SMSOnly功能请 求成功。
根据上述一种 UE请求 SMSonly功能时的处理方法之二,本发明实施例中 相应地提供了一种 MME设备, 包括:
接收模块,用于在进行联合 TA/LA更新过程中,接收 UE包含请求 SMSonly 功能请求的 TAU请求消息;
处理模块, 用于确定网络支持 SMSonly功能, 为该 UE确定 LAI, 并建立 与根据该 LAI所推断出的移动交换中心 /访问位置寄存器 MSC VLR的 SGs接 口;
指示模块,用于向 UE发送 TAU ACCEPT消息,该消息中指示其 SMSOnly 功能请求成功。 本发明实施例中提供了一种 UE请求 SMSonly功能时的处理方法之三,包 括如下步骤:
SGSN接收 MME传递的 CS PAGING消息;
SGSN执行 CN Domain Indicator设置为 CS DOMAIN的寻呼过程或者 CS PAGING过程。
根据上述一种 UE请求 SMSonly功能时的处理方法之三,本发明实施例中 相应地提供了一种 SGSN设备, 包括:
接收模块, 用于接收 MME传递的 CS PAGING消息;
寻呼模块, 用于执行 CN Domain Indicator设置为 CS DOMAIN的寻呼过 程或者 CS PAGING过程。
本发明实施例中提供了一种 UE请求 SMSonly功能时的处理方法之四,包 括如下步骤:
UE在 GERAN或者 UTRAN中接收 SGSN的 CS PAGING消息; 若 UE在按照 CLASS-C模式操作, 则接入到演进的通用陆地无线接入网 E-UTRAN;
接入到 E-UTRAN后,按照在 E-UTRAN中收到 MT-SMS相关的寻呼消息, 进行处理。
根据上述一种 UE请求 SMSonly功能时的处理方法之四,本发明实施例中 提供了一种用户设备, 包括:
接收模块, 用于在 GERAN或者 UTRAN中接收 SGSN的 CS PAGING消 接入模块, 用于在确定 UE 在按照 CLASS-C 模式操作时, 接入到 B-UTRAN, 并按照在 E-UTRAN中收到 MT-SMS相关的寻呼消息进行处理。
本发明有益效果如下:
在本发明提供的一种技术方案中,在接收 UE请求 SMSonly功能的请求消 息后, 网络指示 UE的 SMSonly功能请求成功, 在 UE通过 UTRAN/GERAN 接入时,按照 CLASS-C MODE的方式操作, 而不是做联合 RAU。 该方案可以 解决在 SGSN没有激活 ISR, 而 UE返回到 E-UTRAN后需要执行联合 TA/LA 过程中,无法使用 SMSonly功能的问题,以及,当 UE在 UTRAN和 E-UTRAN 之间移动时,导致 Gs接口和 SGs接口频繁拆建给网络带来较大的负荷的问题。
在本发明提供的一种技术方案中,请求 SMSonly的 UE在 E-UTRAN中作 联合 TA LA更新时,确定网络支持 SMSonly功能,则 MME为该 UE确定 LAI, 并建立与根据该 LAI所推断出的 MSC/VLR的 SGs接口; 然后 MME向 UE发 送 TAU ACCEPT消息, 该消息中指示其 SMSOnly功能请求成功。 该方案可以 解决在 SGSN没有激活 ISR, 而 UE返回到 E-UTRAN后需要执行联合 TA/LA 过程中, 无法使用 SMSonly功能的问题, 以及, 针对 DATA ONLY的 UE, 可 能出现 UE无法和 MSC交互的问题, 以及, 当 UE在 UTRAN和 E-UTRAN之 间移动时, 导致 Gs接口和 SGs接口频繁拆建给网络带来较大的负荷的问题。
在本发明提供的一种技术方案中, SGSN接收 MME传递的 CS PAGING 消息后, SGSN执行 CN Domain Indicator设置为 CS DOMAIN的寻呼过程或 者 CS PAGING过程。 即, MME向 SGSN传递的 CS PAGING消息, SGSN寻 呼 UE时采用 CS PAGING过程或指示为 CS-DOMAIN的 PAGING过程, 如果 Uli在 GERAN或者 UTRAN中收到该寻呼, 按照 CLASS-C模式操作的 UE, 回到 E-UTRAN接入,并按照在 E-UTRAN中收到 MT-SMS寻呼消息继续处理。 该方案可以针对 DATA ONLY的 UE,解决可能出现 UE无法和 MSC交互的问 题。 附图说明
图 1为本发明实施例中 SMSonly场景的位置关系示意图;
图 2为本发明实施例中 UE请求 SMSonly功能时的处理方法一实施流程示 意图;
图 3为本发明实施例中 MME设备结构示意图;
图 4为本发明实施例中用户设备结构示意图;
图 5为本发明实施例中 SGSN设备结构示意图; 图 6为本发明实施例中 UE请求 SMSonly功能时的处理方法二实施流程示 意图;
图 7为本发明实施例中移动性管理实体设备结构示意图;
图 8为本发明实施例中 UE诗求 SMSonly功能时的处理方法三实施流程示 意图;
图 9为本发明实施例中 UE请求 SMSonly功能时的处理方法四实施流程示 意图;
图 10为本发明实施例中 SGSN设备结构示意图;
图 11为本发明实施例中用户设备结构示意图。 具体实施方式
发明人在发明过程中注意到:
在实现 SMSonly功能时, 在联合 ATTACH过程中, UE成功附着后, EPS services 的移动性管理实体 MME 和 non-EPS services 的移动性管理实体 MSC/VLR之间建立了 SGs接口, UE驻留在 E-UTRAN中。 当有 MT-SMS到 达 MSC/VLR时, 如果 UE处于 IDLE态, MSC VLR通过 MME寻呼 UE, UE 收到寻呼后, 首先建立和网络的信令连接, 然后即可通过 NAS信令消息接受 来自 MSC VLR的 MT-SMS. 需要注意的是, 此时, UE是不会 FALL BACK 到 2G/3G网络的。
由此可见:
1、 在 MT-SMS 和 MO-SMS 场景下, UE 都不会 FALLBACK 到 GliRAN/UTRAN;
2、 EUTRAN和 GERAN/UTRAN的覆盖可以不需要重叠。 这一条只能适 用于 UE仅仅使用 SMS, 而不使用 CSFB的其它业务时。
这样设计的原因在于:
1、 可以减少 MME处 TA ( Traking Area, 跟踪区)和 LA ( Location Area, 位置区)之间对应关系的配置; 2、 大幅度减少网络中升级支持 SMSoverSGs的 MSC/VLR的数量, 只需 部署几个(至少一个) 支持 SMSoverSGs功能的 MSC/VLR即可。
即, 当 UE 进行 SMSonly 类型的 ATTACH 时, MME推断的出的一个 MSC/VLR可能是一个虛拟的 MSC VLR, 该 MSC/VLR所覆盖的 UTRAN和 GERAN和 UE当前所在的 E-UTRAN位置区可以是不重叠的。 本申请中定义 为情景 a(case a), 即, 在该情景下, 该 MSC VLR所覆盖的 UTRAN和 GERAN 和 UE当前所在的 E-UTRAN位置区是不重叠的。 这个场景的好处是, 不需要 网络中所有的 MSC/VLR都升级到支持 SGs接口, 不需要在 MME上配置 TA 和 LA的对应关系。 这样的网络部署运营成本比较低。
现在再对另外一种情景进行介绍, 本申谛中定义为情景 b(case b), 在该情 景下,该 MSC/VLR所覆盖的 UTRAN和 GERAN和 UE当前所在的 E-UTRAN 位置区是重叠的。这种场景需要在 MME上配置 TA和 LA的对应关系,且 MME 周围的 MSC/VLR均需要支持 SGs„
图 1为 SMSonly场景的位置关系示意图,如图所示,有两个 UTRAN覆盖, 分别是 UTRAN-1和 UTRAN-2; UTRAN- 1 的位置区代码是 LAC-1、路由区代 码是 RAC-1; UTRAN-2的位置代码是 LAC-2, 还有一个 EUTRAN覆盖, 覆盖 的两个位置区的标识分别为 TAI-1和 TAI-2。 UE在 EUTRAN中 ATTACH到 BPS SERVICES和 SMSonly时, 网络指示给它的 LAC是 LAC-2, 而实际的 UTRAN覆盖则是 LAC- 1。
则, 当 UE移动进 离开 EUTRAN区域时'需要进行 INTER-MSC( MSC 间) 的 location update (位置更新), 以保证 UE可以使用短信业务, 具体可以 参见 3GPP规范 23.272所述。
下面说明为实现 CSFB和 /或 SMSonly时, UE发起的联合 TA/LA过程。 这个过程适用于 UE由 UTRAN移动进入 E-UTRAN的情形。
在该过程中, 如果 UE在 TAU时使用的 GUTI ( Globally Unique Temporary Identity,全球唯一(用户)临时标识),是通过 P-TMSK Packet Temporary Mobile Station Identity, 分组临时移动用户标识)和 RAI ( Routing Area Identity,路由区 标识)映射得到的, MME将根据该 GUTI提取出 LAI ( Location Area ID, 位 置区 ID ),并根据该 LAI选择一个 MSC VLR来执行位置更新过程。如果 MME 没有配置 TA/LA对应关系,或者 LAI对应的 VLR并不支持 SGs接口,则这一 步可能会失败。这种情形是存在的:如果运营商仅支持 SMSonly,不支持 CSFB, 则只需升级少量的 MSC VLR ( MME处配置对应的特殊的 LAI值)支持 SGs 接口即可, 此时, MME只需选择特殊的 LAI值, 将 SGs接口的建立到该 LAI 对应的 MSC/VLR即可。
可见, 现有规范中, 考虑了 CSFB 和 ISR协调工作的场景, 也考虑了 SMSonly和 ISR协调工作的场景。 两者的处理方式是一致的。但是现有技术存 在以下问题:
场景: UE在 E-UTRAN中初始接入, 并请求并得到 SMSonly, 网络将 UE 注册到特殊的 VLR, 并将这一个特殊 VLR的 LAI (计做 LAC-2 )指示给 UE。
UE在 E-UTRAN中是 EPS/IMSI ( International Mobile Subscriber Identity, 国际移动用户标识) attached, 并请求 SMSonly功能, 网络支持 SMSonly并向 UE指示其 SMSonly功能请求成功。 当 UE通过 UTRAN接入, UE需要进行 联合 LA/RA更新过程(因为此时 UE是 IMSI ATTACHED )。在联合 LA/RA更 新过程中, UE需要向网络指示其是否支持 CSFB和 /或 SMSonly, 在此场景, 如果 UE指示支持 CSFB和 /^ SMSonly, 则 SGSN将去激活 ISR, 并将指示当 前位置的 LAI给 UE (此时是 LAC-1 ) 在联合 LA/RA更新过程成功后, Inter-MSC location update过程完成, MME和 MSC/VLR-2之间 SGs接口将删 除, SGSN和 MSC VLR- 1之间的 Gs接口将建立。 在 HLR ( Home Location Register, 归属位置寄存器)处, 该 UE 的 MM CONTEXT (用户设备移动性 管理上下文, MM: Mobility Management,移动性管理)中记录了 MSC/VLR-1、 SGSN, MME的地址; 由于 CANCEL LOCATION (取消位置)过程,所以 HLR 不记录 MSC/VLR-2 的地址。 在本申请中, 名词 HLR和 HSS可以互换使用, 在本申请中它们没有功能上的区别, 指代网络中的同一个实体。
因为 ISR没有激活, 则 UE返回接入到 E-UTRAN后需要执行联合 TA/LA 过程。 因为 UE在 UTRAN中获得了 P-TMSI和 RAI, 所以在该过程中 MME 按照 UE上报的由 P-TMSI和 RAI映射生成的 GUTI提取出的 LAI所推断出来 的 VLR很可能是不支持 SGs接口的 MSC VLR-1 (如果网络按照 case a的场景 来部署), 这将直接导致产生问题一: 无法使用 SMSonly功能,
如果推断出来的 VLR支持 SGs接口 (例如 case b中, 假设网络中的所有 MSC/VLR都支持 SGs ), 则 SGs接口重新建立, Gs接口拆除。 在 HLR处, 该 UE MM CONTEXT中注册了 MSC/VLR (支持 SGs接口的那个 MSC/VLR )、 SGSN、 MME的地址。 而在此过程中, MME是可以指示 UE激活 ISR的。
针对 case b, 因为激活了 ISR, 如果 UE重选进入到 UTRAN, 则无需发起 RAU过程 (除非发生了 ISR去激活条件)。 此时存在如下问题二:
针对数据卡等仅支持分组交换的 (称作, DATA ONLY, 即仅支持分组交 换等数据业务)的 UE, 可能出现 UE无法和 MSC交互的情形(比如, 只能工 作在 PS-MODE ( Packet Switched - MODE, 分组交换 -模式)的 UE, 是无需 支持 CS-MODE ( Circuit Switch- MODE, 电路交换-模式)的信令过程的)。
也由此还存在问题三: 当 UE 在通过 UTRAN 或者 GERAN接入和 H-UTRAN接入之间转换时, 将导致 Gs接口和 SGs接口的频繁的拆建, 给网 络带来的负荷也是较大的。
鉴于存在上述问题, 本发明提供的技术方案将解决 SMSonly和 ISR的相 互关系, 用于保证 SMSonly的 UE在 IDLE模式可以保持 ISR处于激活态。 下 面结合附图对具体实施方式进行说明。
针对问题一, 本发明实施例中提出了方案一和方案二, 首先对方案一进行 说明。
图 2为 UE请求 SMSonly功能时的处理方法一实施流程示意图,如图所示, 可以包括如下步骤:
步骤 201、 接收 UE请求 SMSonly功能的请求消息;
步骤 202、 网络指示 UE的 SMSonly功能请求成功;
步骤 201和步骤 202可以按现有方法进行实施。 在附着过程中, UE通过 在 ATTACH REQUST消息的 SMSonly功能指示向网络请求 SMSonly功能; 网 络通过 ATTACH ACCEPT消息中的 SMSonly指示, 通知 UE其 SMSonly功能 请求成功。在联合跟踪区更新过程中, UE通过在 TAU REQUST消息的 SMSonly 功能指示向网络请求 SMSonly功能;网络通过 TAU ACCEPT消息中的 SMSonly 指示, 通知 UE其 SMSonly功能请求成功。
步骤 203、在 UE通过 UTRAN或者 GERAN接入时,按照 CLASS-C MODE ( CLASS-C模式)进行操作。
在步骤 203中, CLASS-C mode是指 MS ( Moble Station,移动台)的一种 操作模式。 一般是指: UE仅附着到 PS域, 只可以操作 PS域的业务。
另外: MS是 2G规范中对移动终端的的称谓, 到了 3G和 LTE规范中则 称移动终端为 UE。 本申请中这两个设备名词可以互换,
CLASS-C模式一般还可以包括 A/Gb模式中的 CLASS-C操作模式、 Iu模 式中的 PS操作模式。这两种操作模式的具体定义可以参见 2GPP 23.060中 5.4.5 Mobile Stations (A/Gb mode)、 5.4.6 Mobile Stations (Iu mode)的内容。
具体的, 在 A/Gb模式, MS按照三种操作模式中的一种操作。 这三种模 式由网络能力和 MS附着到的网络域( CS domain还是 PS domain )、 以及 MS 是否能同时操作 PS和 CS域业务能力共同来确定。 这三种操作模式是:
CLASS-A操作模式: MS附着到 CS域和 PS域, 并且 MS支持同时操作 PS和 CS域业务。
CLASS-B操作模式: MS附着到 CS域和 PS域, 但是在某一时刻, MS只 能操作 PS域业务或者只能操作 CS域业务。
CLASS-C操作模式: MS只附着到 PS域。
在 Iu模式, MS按照另外的三种操作模式中的一种操作。 但是, 这些另外 的操作模式和 A/Gb模式的三种操作模式有所不同,一是 Iu模式的 RAN( Radio Access Network, 无线接入网)具有复用 CS和 PS连接的能力、二是 CN ( Core Network, 核心网)或者 UTRAN/GERAN-Iu可以提供针对 CS业务和 PS业务 的 paging co-ordination功能。 在 Iu模式, MS的另外的三种操作模式是:
CS/PS操作模式: MS附着到 CS域和 PS域, 并且 MS具有同时操作 PS 和 CS域业务的能力。 这种模式与 A/Gb模式的 CLASSS-A操作模式相当。 同 时操作 PS和 CS业务的能力依赖于终端的能力(例如,一个 A/Gb的 CLASS B 操作模式的终端, 它不能同时操作 CS和 PS业务, 在其变为 Iu模式的 PS/CS 操作模式后, 可能存在同样的限制)。
PS操作模式: MS只附着到 PS域, 并且 MS只可以操作 PS域的业务。但 是, 这并不排除通过 PS域提供 CS-LIKE的业务(类似 CS的业务), 如 VoIP。 这种模式是和 A/Gb模式中的 CLASS-C操作模式等同。
CS操作模式: MS只附着到 CS域, 并且 MS可能只操作 CS域的业务。 但是, 这并不排除通过 CS域提供 PS-LIKE的业务(类似 PS的业务)。
实施中, 在按照 CLASS-C MODE操作时, 可以包括: 执行 RAU过程, 在 RAU过程中, MS向网络指示该 MS不支持 CSFB。
在上述实施过程中, 如果 UE请求 SMSonly且网络指示 UE其 SMSonly 功能请求成功, 则 UE通过 UTRAN或 GERAN接入后, 只执行 RAU过程, 而不执行联合 RAU过程。 在 RAU过程中, UE向网络指示其不支持 CSFB, 此时网络可以激活 ISR。 网络可以保持 SGs接口不被拆除。 这样当有 MT-SMS ( Mobile terminating-SMS, 移动终止的短消息)到达 MSC/VLR时, 按照现有 流程, 如果 UE在 E-UTRAN中驻留, 则可以通过 EPS接收 MT-SMS, 如果 UE在 UTRAN中驻留, 则可以通过 SGSN得到寻呼, 并按照后续的方案三的 方式接收短信。
可见, 按方案一实施则此时就保持了 SGs接口、 HSS ( Home Subscriber Server,归属用户服务器)有 SGSN注册、 MSC VLR注册, MT-SMS仍然可达。
SMS GW (短消息网关)在路由 MT-SMS时, 可以发送 MT-SMS给 SGSN, 也 可以发送给 MSC/VLR然后到通过 SGs接口到达 MME。
基于同一发明构思, 本发明实施例中还提供了一种 MME设备、 一种用户 设备、一种 SGSN设备, 由于这些设备解决问题的原理与 UE请求 SMSonly功 能时的处理方法一相似, 因此这些设备的实施可以参见方法一的实施, 重复之 处不再赘述。
图 3为 MME设备结构示意图, 如图所示, MME中可以包括:
接收模块 301, 用于接收 UE请求 SMSonly功能的谛求消息;
指示模块 302, 用于在确定网络支持 SMSonly功能时, 向 UE指示其 SMSonly功能请求成功。
实施中, 指示模块可以包括: 第一指示单元和 /或第二指示单元, 其中: 第一指示单元, 用于在附着过程中,在接到 UE通过在 ATTACH REQUST 消息的 SMSonly功能指示向网络请求 SMSonly功能后,通过 ATTACH ACCEPT 消息中的 SMSonly指示通知 UE其 SMSonly功能请求成功;
第二指示单元, 用于在联合跟踪区更新过程中, 在接到 UE通过在 TAU RBQUST消息的 SMSonly功能指示向网络请求 SMSonly功能后, 通过 TAU ACCEPT消息中的 SMSonly指示, 通知 UE其 SMSonly功能请求成功。
图 4为用户设备结构示意图, 如图所示, 用户设备中可以包括:
确定模块 401, 用于确定是否通过 UTRAN或者 GERAN接入;
操作模块 402, 用于在通过 UTRAN或者 GERAN接入时, 按照 CLASS-C MODE进行操作。
实施中,操作模块还可以进一步用于在按照 CLASS-C MODE进行操作时, 执行路由区更新 RAU过程, 并在 RAU过程中, 向网络指示其不支持 CSFB。
相应的, 还提供了一种 SGSN, 下面进行说明。
图 5为 SGSN设备结构示意图, 如图所示, SGSN中可以包括:
接收模块 501 , 用于接收 MS的 RAU请求消息;
处理模块 502, 用于当用户设备指示不支持 CSFB时, 判断并激活 ISR, 下面对方案二进行说明。
图 6为 UE请求 SMSonly功能时的处理方法二实施流程示意图,如图所示, 可以包括如下步骤:
步骤 601、在进行联合 TA/LA更新过程中,接收 UE包含 SMSonly功能请 求的 TAU请求消息;
步骤 602、 确定网络仅支持 SMSonly功能时, MME为该 UE确定 LAI, 并建立与根据该 LAI所推断出的 MSC VLR的 SGs接口;
步骤 603, MME向 UE发送 TAU ACCEPT消息,该消息中指示其 SMSOnly 功能请求成功。
实施中, MME为该 UE选择来建立 SGs接口的 MSC/VLR可以是虚拟 MSC/VLR, 所谓虛拟 MSC/VLR, 是指该 MSC VLR所覆盖的位置区和当前 MME所覆盖的跟踪区可能是不重叠的。
具体实施中, 在联合 TA/LA更新过程中, UE请求 SMSonly且网络支持 SMSonly, 如果 MME没有配置 TA/LA之间的关系 (也就是网络中只部署了少 量的 MSC/VLR支持 SGs ),不论 UE是否使用由 P-TMSI/RAI映射得到的 GUTI 来标识自己, MME 均可以按照特殊的算法来决定一个 MSC VLR (即虚拟 MSC/VLR ) 来建立 SGs接口。
实施中, 在执行步骤 602时可以包括:
第一种可能的情形:
在确定所述 TAU请求消息中包含的 GUTI是由 P-TMSI/RAI 映射得到时, 根据该 GUTI提取出位置区标识 LAI; 通过该 LAI可以推断出一个 VLR。
若该 VLR支持 SGs接口,则 MME通过 Update Location过程建立与该 VLR 之间 SGs接口。
若该 VLR不支持 SGs接口, 则 MME分配一个默认 LAI, 并通过该默认 LAI可以推断出一个 VLR,并通过 Update Location过程建立与该 VLR之间 SGs 接口。
实施中, 通过 LAI推断出 VLR是可以按现有技术进行实施, 详细可以参 见 TS23.236,
具体的, 如果网络受到 TAU谞求消息时包含的 GUTI是由 P-TMSI/RAI 映射得到的, 此时, MME会按照 GUTI来提取出一个 LAI。 将 P-TMSI/RAI 映射到 GUTI、 以及从该 GUTI提取出一个 LAI, 具体实施中可以按现有技术 进行实施。 MME通过这个 LAI推断出一个 VLR„ 如果这个 VLR支持 SGs接 口,则 MME可以通过 Update Location过程成功建立与该 VLR之间 SGs接口, 然后执行步骤 603。
具体实施时, Update Location过程可以按现有过程执行, 主要用于建立和 MME和 VLR之间的 SGs接口, 还用于更新 UE在该 VLR处的注册状态。
如果这个 VLR不支持 SGs接口, 或者建立 SGs接口失败, 则 MME可以 分配一个默认的 LAI。 通过这个默认 LAI可以推断出一个 VLR。 该 VLR是一 定支持 SGs接口的,则 MME可以通过 Update Location过程成功建立与该 VLR 之间 SGs接口, 然后执行步骤 603。
第二种可能的情形:
确定网络是否只支持 SMSonly特性, 是则分配一个默认的 LAI, 并通过该 LAI推断出一个 VLR, 并通过 Update Location过程建立与该 VLR之间 SGs接 α。
MME接收到 UE请求 SMSOnly功能的消息后, 判断网络是否配置了只支 持 SMSonly特性, 如果是, 则直接分配默认的 LAI, 并通过该 LAI推断出一 个 VLR,然后 MME可以通过 Update Location过程成功建立与该 VLR之间 SGs 接口, 然后执行步骤 603。
通过默认 LAI所推断出的 VLR, 通常就是虛拟 VLR,
在确定网络是否只支持 SMSonly特性时, 可以包括:
若 MME没有配置 TA/LA之间的关系, 则确定网络只支持 SMSonly; 或,在确定 MME中配置有用以标识网络中只支持 SMSonly特性的指示时, 确定网络只支持 SMSonly。
具体实施中, 在判断网络中只支持 SMSOnly特性, 或者说在如何判断网 络中只部署了少量的 MSC/VLR支持 SGs时, 一种方法是: 如果 MME没有配 置 TA/LA之间的关系, 就认为网络只支持 SMSonly. 另一种方法是: MME中 配置一个指示,表明网络中只支持 SMSonly特性。 这个指示可以是 MME中配 置了的默认 LAI, 按照实际的网络部署情况,即 MSC和 VLR通常设置在一起(如同一地点、 同一个物理实体等), 所以本申谛中提到 MSC/VLR和提到 VLR时, 均是指设 置在一起的 MSC和 VLR。
基于同一发明构思, 本发明实施例中还提供了一种移动性管理实体设备, 由于该设备解决问题的原理与 UE请求 SMSonly功能时的处理方法二相似,因 此该设备的实施可以参见方法二的实施, 重复之处不再赘述。
图 7为移动性管理实体设备结构示意图, 如图所示, MME中可以包括: 接收模块 701 , 用于在进行联合 TA/LA更新过程中, 接收 UE包含请求 SMSonly功能请求的 TAU请求消息;
处理模块 702, 用于确定网络仅支持 SMSonly功能, 为该 UE分配一个默 认的 LAI, 并建立与该默认 LAI 所指向的移动交换中心 /访问位置寄存器 MSC/VLR的 SGs接口;
指示模块 703, 用于向 UE发送 TAU ACCEPT 消息, 该消息中指示其 SMSOnly功能请求成功指示。
实施中, 处理模块还可以进一步用于选择一个虚拟 MSC VLR来建立 SGs 接口。
实施中, 处理模块中可以包括:
LAI 确定单元, 用于在确定所述 TAU请求消息中包含的 GUTI是由 P-TMSI/RAI映射得到时, 根据该 GUTI提取出 LAI, 通过该 LAI推断出一个 VLR;
接口单元, 用于在若该 VLR支持 SGs接口, 则通过 Update Location过程 建立与该 VLR之间 SGs接口; 若该 VLR不支持 SGs接口, 则分配一个默认 的 LAI, 并通过该默认 LAI推断出一个 VLR, 再通过 Update Location过程建 立与该 VLR之间 SGs接口。
实施中, 处理模块还可以进一步用于确定网络是否只支持 SMSonly特性, 是则分配默认的 LAI,并通过该 LAI推断出一个 VLR,再并通过 Update Location 过程建立与该 VLR之间 SGs接口。 实施中,处理模块还可以进一步用于在确定网络是否只支持 SMSonly特性 时, 若 MME没有配置 TA/LA之间的关系, 则确定网络只支持 SMSonly; 或, 在确定 MME中配置有用以标识网络中只支持 SMSonly特性的指示时,确定网 络只支持 SMSonly。
针对问题二, 本发明实施例中提出了方案三, 下面对方案三进行说明。 需 要说明的是,方案一中, 问题二依然存在, 因此方案一和方案三可以结合使用, 以便同时解决问题一以及问题二。
在方案三的实施中, 是在 S3接口上传递 SMS相关的 CS PAGING (寻呼) 消息, 按照 CLASS-C模式操作的 UE在 GERAN或者 UTRAN 中收到 CS PAGING消息后, 可以选择 E-UTRAN接入。
1、 对于前面所说的 Case a:
如果 MME收到了 MT-SMS的相关寻呼, 则在 E-UTRAN寻呼的同时, 还 把寻呼发到 SGSN,由 SGSN执行 CN Domain Indicator设置为 CS DOMAIN( CS 域)的寻呼过程或者 CS PAGING过程。 如果 UE在 E-UTRAN中响应了寻呼, 则按照现有流程执行。如果 UE在 GERAN中收到了 CS PAING消息,或者 UE 在 UTRAN中收到了寻呼且寻呼指示为 CS domain,按照 CLASS-C模式操作的 UH, 立即选择 E-UTRAN接入, 并按照在 E-UTRAN中收到 MT-SMS相关的 寻呼来处理。
当 UE选择回到 E-UTRAN接入后, 还可能会收到来自 MME的寻呼, 此 时, 按照在 E-UTRAN中收到寻呼的流程处理即可。
2、 对于前面所说的 Case b:
如果 MME收到了 MT-SMS的相关寻呼, 则在 E-UTRAN寻呼的同时, 还 把寻呼发到 SGSN,由 SGSN执行 CN Domain Indicator设置为 CS DOMAIN( CS 域)的寻呼过程或者 CS PAGING过程。 如果 UE在 E-UTRAN中响应了寻呼 , 则按照现有流程执行。如果 UE在 GERAN中收到了 CS PAING消息,或者 UE 在 UTRAN中收到了寻呼且寻呼指示为 CS domain,按照 CLASS-C模式操作的 UE, 立即选择 E-UTRAN接入, 并按照在 E-UTRAN中收到 MT-SMS相关的 寻呼来处理。 不按照 CLASS-C模式操作的 UE, 可以直接响应 MS (:。
根据上述方案三的实施原理, 在具体实施中可以如下:
图 8为 UE请求 SMSonly功能时的处理方法三实施流程示意图,如图所示, 可以包括如下步骤:
步骤 801、 SGSN接收 MME传递的 CS PAGING消息;
步骤 802、 SGSN执行 CN Domain Indicator (核心网域指示)设置为 CS DOMAIN ( CS域)的寻呼过程或者 CS PAGING过程。
图 8为 SGSN的实施方式, 相应的, 在 UE上的实施方式如下:
图 9为 UE倚求 SMSonly功能时的处理方法四实施流程示意图,如图所示, 可以包括如下步骤:
步骤 901、UE在 GERAN或者 UTRAN中接收 SGSN的 CS PAGING消息; 步骤 902、 若 UE在按照 CLASS-C模式操作, 则接入到 E-UTRAN;
步骤 903、 接入到 E-UTRAN后, 按照在 E-UTRAN中收到 MT-SMS相关 的寻呼消息, 进行相应的处理。
基于同一发明构思,本发明实施例中还提供了一种 SGSN设备与一种用户 设备,由于这些设备解决问题的原理与 UE请求 SMSonly功能时的处理方法三、 方法四相似, 因此这些设备的实施可以参见方法三、 方法四的实施, 重复之处 不再赘述。
图 10为 SGSN设备结构示意图, 如图所示, SGSN中可以包括: 接收模块 1001 , 用于接收 MME传递的 CS PAGING消息;
寻呼模块 1002, 用于寻呼 UE, 执行 CN Domain Indicator设置为 CS
DOMAIN ( CS域)的寻呼过程或者 CS PAGING过程。
图 11为用户设备结构示意图, 如图所示, UE中可以包括:
接收模块 1101, 用于在 GERAN或者 UTRAN中接收 CS PAGING消息; 接入模块 1102, 用于在确定 UE在按照 CLASS-C模式操作时, 接入到
E-UTRAN, 并按照在 E-UTRAN中收到 MT-SMS寻呼消息进行处理
为了描述的方便, 以上所述装置的各部分以功能分为各种模块或单元分别 描述。 当然, 在实施本发明时可以把各模块或单元的功能在同一个或多个软件 或硬件中实现。
由上迷实施例提供的技术方案可以看出:
在方案一中, 请求 SMSonly的 UE在 GERAN和 UTRAN中做 RAU, 而 不是做联合 RAU。 该方案可以解决在 SGSN没有激活 ISR, 而 UE 返回到 E-UTRAN后需要执行联合 TA/LA过程中,无法使用 SMSonly功能的问题, 以 及, 当 UE在 UTRAN和 E-UTRAN之间移动时, 导致 Gs接口和 SGs接口频 繁拆建给网络带来较大的负荷的问题。
在方案二中, 请求 SMSonly的 UE在 E-UTRAN中作联合 TA/LA更新时, 确定网络支持 SMSonly功能,则 MME为该 UE确定 LAI,并建立与 >据该 LAI 所推断出的 MSC VLR的 SGs接口;然后 MME向 UE发送 TAU ACCEPT消息, 该消息中指示其 SMSOnly功能谛求成功。 该方案可以解决在 SGSN没有激活 ISR,而 UE返回到 E-UTRAN后需要执行联合 TA/LA过程中,无法使用 SMSonly 功能的问题, 以及, 针对 DATA ONLY的 UE, 可能出现 UE无法和 MSC交互 的问题, 以及, 当 UE在 UTRAN和 E-UTRAN之间移动时, 导致 Gs接口和 SGs接口频繁拆建给网络带来较大的负荷的问题。
在方案三中, MME向 SGSN传递的 CS PAGING消息, SGSN寻呼 UE时 采用 CS PAGING过程或指示为 CS-DOMAIN的 PAGING过程, 如果 UE在 GERAN或者 UTRAN中收到该寻呼, 按照 CLASS-C模式操作的 UE, 回到 E-UTRAN接入, 并按照在 E-UTRAN中收到 MT-SMS寻呼消息继续处理。 该 方案可以针对 DATA ONLY的 UE,解决可能出现 UE无法和 MSC交互的问题。
本领域内的技术人员应明白, 本发明的实施例可提供为方法、 系统、 或计 算机程序产品。 因此, 本发明可采用完全硬件实施例、 完全软件实施例、 或结 合软件和硬件方面的实施例的形式。 而且, 本发明可采用在一个或多个其中包 含有计算机可用程序代码的计算机可用存储介盾 (包括但不限于磁盘存储器、
CD-ROM、 光学存储器等) 上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、 设备(系统)、 和计算机程序产 0128
品的流程图和 /或方框图来描述的。应理解可由计算机程序指令实现流程图和 /或方框图中的每一流程和 /或方框、以及流程图和 /或方框图中的流程和 / 或方框的结合。 可提供这些计算机程序指令到通用计算机、 专用计算机、 嵌入 式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算 机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一 个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设 备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中 的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个 流程和 /或方框图一个方框或多个方框中指定的功能
这些计算机程序指令也可装栽到计算机或其他可编程数据处理设备上,使 得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处 理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个 流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例,但本领域内的技术人员一旦得知了基 本创造性概念, 则可对这些实施例作出另外的变更和修改。 所以, 所附权利要 求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然,本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发 明的精神和范围。 这样, 倘若本发明的这些修改和变型属于本发明权利要求及 其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。

Claims

权 利 要 求
1、 一种用户设备 UE请求仅短消息特性 SMSonly功能时的处理方法, 其 特征在于, 包括如下步骤:
接收 UE清求 SMSonly功能的请求消息;
网络指示 UE的 SMSonly功能请求成功;
在 UE通过通用陆地无线接入网 UTRAN或者 GSM/EDGE无线接入网络 GERAN接入时, 按照 CLASS-C MODE进行操作。
2、如权利要求 1所迷的方法,其特征在于,按照 CLASS-C MODE进行操 作, 包括:
执行路由区更新 RAU过程;
在 RAU过程中, UE向网络指示其不支持电路交换回退 CSFB。
3、 如权利要求 1所述的方法, 其特征在于, 网络指示 UE的 SMSonly功 能请求成功, 包括:
在附着过程中, 在接到 UE通过在 ATTACH REQUST消息的 SMSonly功 能指示向网络倚求 SMSonly功能后, 网络通过 ATTACH ACCEPT消息中的 SMSonl 指示通知 UE其 SMSonly功能请求成功;
或, 在联合跟踪区更新过程中, 在接到 UE通过在 TAU REQUST消息的 SMSonly功能指示向网络请求 SMSonly功能后, 网络通过 TAU ACCEPT消息 中的 SMSonly指示, 通知 UE其 SMSonly功能请求成功。
4、 一种移动性管理实体 MME设备, 其特征在于, 包括:
接收模块, 用于接收 UE请求 SMSonly功能的请求消息;
指示模块, 用于在确定网络支持 SMSonly功能时, 向 UE指示 SMSonly 功能请求成功。
5、 如权利要求 4所迷的设备, 其特征在于, 指示模块包括: 第一指示单 元和 /或第二指示单元, 其中:
第一指示单元, 用于在附着过程中,在接到 UE通过在 ATTACH REQUST 消息的 SMSonly功能指示向网络请求 SMSonly功能后,通过 ATTACH ACCEPT 消息中的 SMSonly指示通知 UE其 SMSonly功能请求成功;
第二指示单元, 用于在联合跟踪区更新过程中, 在接到 UE通过在 TAU REQUST消息的 SMSonly功能指示向网络请求 SMSonly功能后, 通过 TAU ACCEPT消息中的 SMSonly指示, 通知 UE其 SMSonly功能清求成功。
6、 一种用户设备, 其特征在于, 包括:
确定模块, 用于确定是否通过 UTRAN或者 GERAN接入;
操作模块,用于在确定通过 UTRAN或者 GERAN接入时,按照 CLASS-C MODE进行操作。
7、 如权利要求 6所迷的设备, 其特征在于, 操作模块进一步用于在按照 CLASS-C MODE进行操作时,执行路由区更新 RAU过程,并在 RAU过程中, 向网络指示其不支持 CSFB。
8、 一种服务 GPRS支持节点 SGSN设备, 其特征在于, 包括:
接收模块, 用于接收用户设备的 RAU请求消息;
处理模块, 用于当用户设备指示不支持 CSFB时, 判断并激活 ISR。
9、 一种 UE请求 SMSonly功能时的处理方法, 其特征在于, 包括如下步 骤:
在进行联合跟踪区 /位置区 TA/LA更新过程中,接收 UE包含请求 SMSonly 功能请求的跟踪区更新 TAU请求消息;
确定网络支持 SMSonly功能, MME为该 UE确定 LAI, 并建立与根据该 LAI所推断出的移动交换中心 /访问位置寄存器 MSC/VLR的 SGs接口;
MME向 UE发送跟踪区更新接受 TAU ACCEPT消息, 该消息中指示其 SMSOnl 功能请求成功。
10、 如权利要求 9 所述的方法, 其特征在于, 所述 MSC VLR是虚拟 MSC/VLR。
11、 如权利要求 9至 10任一所述的方法, 其特征在于, 确定网络支持 SMSonly功能, MME为该 UE确定 LAI, 并建立与根据该 LAI所推断出的 MSC/VLR的 SGs接口, 包括:
在确定所述 TAU请求消息中包含的 GUTI是由 P-TMSI/RAI映射得到时, 根据该 GUTI提取出位置区标识 LAI, 通过该 LAI推断出一个 VLR;
若该 VLR支持 SGs接口, 则 MME通过位置区更新 Update Location过程 建立与该 VLR之间 SGs接口; 若该 VLR不支持 SGs接口,则 MME分配默认 的 LAI, 并通过该默认 LAI推断出一个 VLR, 再通过 Update Location过程建 立与该 VLR之间 SGs接口。
12、 如权利要求 9至 10任一所述的方法, 其特征在于, 确定网絡支持 SMSonly功能, MME为该 UE确定 LAI, 并建立与根据该 LAI所推断出的 MSC/VLR的 SGs接口, 包括:
确定网络是否只支持 SMSonly特性,是则分配默认的 LAI, 并通过该 LAI 推断出一个 VLR, 再通过 Update Location过程建立与该 VLR之间 SGs接口。
13、 如权利要求 12 所述的方法, 其特征在于, 在确定网络是否只支持 SMSonly特性时, 包括:
若 MME没有配置 TA/LA之间的关系 , 则确定网络只支持 SMSonly; 或,在确定 MME中配置有用以标识网络中只支持 SMSonly特性的指示时, 确定网络只支持 SMSonly。
14、 一种 MME设备, 其特征在于, 包括:
接收模块,用于在进行联合 TA/LA更新过程中,接收 UE包含请求 SMSonly 功能请求的 TAU请求消息;
处理模块, 用于确定网络支持 SMSonly功能, 为该 UE确定 LAI, 并建立 与根据该 LAI所推断出的移动交换中心 /访问位置寄存器 MSC/VLR的 SGs接 ρ;
指示模块,用于向 UE发送 TAU ACCEPT消息,该消息中指示其 SMSOnly 功能请求成功。
15、 如权利要求 14所述的设备, 其特征在于, 处理模块进一步用于选择 一个虚拟 MSC/VLR来建立 SGs接口。
16、 如权利要求 14至 15任一所述的设备, 其特征在于, 处理模块包括: LAI 确定单元, 用于在确定所述 TAU请求消息中包含的 GUTI是由
P-TMSI/RAI映射得到时, 根据该 GUTI提取出 LAI, 通过该 LAI推断出一个 VLR;
接口单元, 用于在若该 VLR支持 SGs接口, 则通过 Update Location过程 建立与该 VLR之间 SGs接口;若该 VLR不支持 SGs接口,则分配默认的 LAI, 并通过该默认 LAI推断出一个 VLR,再通过 Update Location过程建立与该 VLR 之间 SGs接口。
17、 如权利要求 14至 15任一所述的设备, 其特征在于, 处理模块进一步 用于确定网络是否只支持 SMSonly特性,是则分配默认的 LAI, 并通过该 LAI 推断出一个 VLR, 再通过 Update Location过程建立与该 VLR之间 SGs接口。
18、 如权利要求 17所述的设备, 其特征在于, 处理模块进一步用于在确 定网络是否只支持 SMSonly特性时, 若 MME没有配置 TA/LA之间的关系, 则确定网络只支持 SMSonly; 或, 在确定 MME中配置有用以标识网络中只支 持 SMSonly特性的指示时, 确定网络只支持 SMSonly,
19、 一种 UE请求 SMSonly功能时的处理方法, 其特征在于, 包括如下步 骤:
SGSN接收 MME传递的 CS PAGING消息;
SGSN执行核心网域指示 CN Domain Indicator设置为 CS DOMAIN的寻 呼过程或者 CS PAGING过程。
20、 一种 SGSN设备, 其特征在于, 包括:
接收模块, 用于接收 MME传递的 CS PAGING消息;
寻呼模块, 用于执行 CN Domain Indicator设置为 CS DOMAIN的寻呼过 程或者 CS PAGING过程。
21、 一种 UE请求 SMSonly功能时的处理方法, 其特征在于, 包括如下步 骤:
UE在 GERAN或者 UTRAN中接收 SGSN的 CS PAGING消息; 若 UE在按照 CLASS-C模式操作, 则接入到演进的通用陆地无线接入网 K-UTRAN;
接入到 E-UTRAN后,按照在 E-UTRAN中收到 MT-SMS相关的寻呼消息, 进行处理。
22、 一种用户设备, 其特征在于, 包括:
接收模块, 用于在 GERAN或者 UTRAN中接收 SGSN的 CS PAGING消 息;
接入模块, 用于在确定 UE 在按照 CLASS-C 模式操作时, 接入到 E-UTRAN, 并按照在 E-UTRAN中收到 MT-SMS相关的寻呼消息进行处理。
PCT/CN2010/080128 2010-01-04 2010-12-22 一种用户设备请求smsonly功能时的处理方法及设备 WO2011079739A1 (zh)

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