WO2013063776A1 - 一种业务处理方法、装置和系统 - Google Patents

一种业务处理方法、装置和系统 Download PDF

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Publication number
WO2013063776A1
WO2013063776A1 PCT/CN2011/081688 CN2011081688W WO2013063776A1 WO 2013063776 A1 WO2013063776 A1 WO 2013063776A1 CN 2011081688 W CN2011081688 W CN 2011081688W WO 2013063776 A1 WO2013063776 A1 WO 2013063776A1
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WO
WIPO (PCT)
Prior art keywords
utran
user equipment
geran
lai information
joint
Prior art date
Application number
PCT/CN2011/081688
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English (en)
French (fr)
Inventor
陈中平
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2011/081688 priority Critical patent/WO2013063776A1/zh
Priority to CN201180003465.7A priority patent/CN103299706B/zh
Publication of WO2013063776A1 publication Critical patent/WO2013063776A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a service processing method, apparatus, and system.
  • the GERA N/UTRAN can access the Circuit Switched (CS) domain; the E-UTRAN can access the PS (Packet Switched) domain.
  • the core network element of the CS domain mainly includes a mobile switching center (MSC, Mobile Switch Center); and the packet domain refers to an evolved packet network (EPS), and the core network element mainly includes a mobility management entity (MME). , Mobility Management Entity ), S-GW (Serving Gateway) and Packet Data Network Gateway (P-GW).
  • MME mobility management entity
  • MME Mobility Management Entity
  • S-GW Serving Gateway
  • P-GW Packet Data Network Gateway
  • the inventors of the present invention found that in the prior art, since the multi-mode multi-standby user equipment works in both GERAN/UTRAN and E-UTRAN modes (that is, multiple standby) Therefore, it is more power-consuming for the user equipment.
  • the embodiment of the invention provides a service processing method, device and system, which can save power consumption of the user equipment without affecting the user experience of the multi-mode multi-user user equipment.
  • An aspect of the present invention provides a service processing method, including:
  • the user equipment initiates a joint registration process to the evolved universal mobile communication system terrestrial radio access network E-UTRAN;
  • the user equipment listens to the paging channel of the E-UTRAN, and does not monitor the global mobile communication system/enhanced data rate global mobile communication system radio access network GERAN/universal mobile communication system land Paging letter of UTRAN of radio access network Road
  • the calling party process is completed by accessing the CS domain through the GERAN/UTRAN; when the user equipment is called, the called page of the CS domain is received through the paging channel of the E-UTRAN, and the GERAN/ The UTRAN accesses the CS domain to complete the called process.
  • Another aspect of the present invention provides a service processing method, which is applied to an evolved universal mobile communication system, a terrestrial radio access network, an E-UTRAN network, and includes:
  • the joint registration request message carries the first LAI information, where the first LAI information is the LAI information corresponding to the GERAN/UTRAN where the user equipment is currently located;
  • Another aspect of the present invention provides a user equipment, including:
  • An initiating unit configured to initiate a joint registration process to the E-UTRAN
  • a processing unit configured to monitor an E-UTRAN paging channel and a GERAN/UTRAN broadcast channel, but not to listen to a GERAN/UTRAN paging channel when determining that the joint registration procedure is successfully registered;
  • the calling process is completed by accessing the CS domain through the GERAN/UTRAN.
  • the paging page sent by the CS domain is received by the paging channel of the E-UTRAN, and then the called domain is completed by accessing the CS domain through the GERAN/UTRAN.
  • Another aspect of the present invention provides a network side device, including:
  • a receiving unit configured to receive a joint registration request message sent by the user equipment, where the joint registration request message carries the first LAI information, where the first LAI information is LAI information corresponding to the GERAN/UTRAN where the user equipment is currently located;
  • a selecting unit configured to select a mobile switching center MSC according to the first LAI information
  • a sending unit configured to send a joint registration response message to the user equipment.
  • Another aspect of the present invention provides a communication system, including any user equipment and any network side equipment provided by the embodiments of the present invention.
  • the embodiment of the present invention adopts a power saving mode for the multi-mode multi-standby user equipment.
  • the user equipment monitors the paging channel of the E-UTRAN and the broadcast channel of the GERAN/UTRAN, but does not monitor the GERAN/UTRAN.
  • Paging channel accessing the CS domain through GERAN/UTRAN at the time of calling
  • the calling process is completed, and when called, the paging channel sent by the CS domain is received by the paging channel of the E-UTRAN, and then the called process is completed by accessing the CS domain through the GERAN/UTRAN, thereby ensuring multi-mode and multi-mode.
  • the user experience of the user equipment saves energy consumption of the user equipment in the CS domain, thereby achieving the purpose of saving power consumption of the user equipment.
  • Figure la is a schematic diagram of a network scenario in which the CS falls back;
  • Figure lb is a flowchart of a service processing method provided by an embodiment of the present invention.
  • FIG. 2 is another flowchart of a service processing method according to an embodiment of the present invention.
  • FIG. 3 is still another flowchart of a service processing method according to an embodiment of the present invention.
  • FIG. 4 is still another flowchart of a service processing method according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • FIG. 5b is another schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a network side device according to an embodiment of the present disclosure.
  • FIG. 6b is another schematic structural diagram of a network side device according to an embodiment of the present invention.
  • the prior art introduces an architecture for connecting to a circuit switched domain through an E-UTRAN network, in which the architecture is The MME is connected to the MSC of the CS domain through the SGs interface, where the black line of the thick solid line indicates the network side device in the circuit domain, and the dotted line box indicates the network side device in the packet domain;
  • the establishment of the connection can be as follows:
  • the user equipment initiates an EPS Mobility Management Combined Procedure (EMM) in the E-UTRAN network, for example, a Combined Attach Procedure or a Joint Tracking Area/Location Combined TA/LA Updating Procedure.
  • EMM EPS Mobility Management Combined Procedure
  • it can be as follows:
  • the user equipment sends an Attach Request message to the MME, and the attachment type in the EPS Attach Type in the Attach Request message is indicated as a joint attachment, such as "Joint EPS" (International EPS) Or the user equipment sends a tracking area update request (TAU Request) message to the MME, where the EPS update type message (EPS update type) is in the tracking area update request message.
  • the update type indication is a joint tracking area/location area update, such as "combined TA (combined tracking area) / location area updating (LA updating, location area updating),".
  • the MME After receiving the request message of the user equipment, such as an attach request message or a tracking area update request message, the MME selects an MSC for the user equipment according to the locally configured Location Area Identity (LAI) information, and is connected to the selected MSC. Establish SGs associations. For example, the MME sends an Update Location Request message to the MSC; the MSC returns an Update Location Accept message to the MME.
  • the update location request message may carry the locally configured LAI information.
  • the MSC After receiving the update location request message, the MSC records the LAI in the context of the user equipment, and is regarded as the registration location information of the user equipment.
  • the MME After the SGs association is established between the MME and the MSC, the MME returns a joint registration response message to the user equipment. For example, the MME sends an Attach Accept message to the user equipment, where the EPS Attach result is indicated as a joint attachment, such as "combined EPS/IMSI attach"; and, for example, the MME sends a tracking area.
  • the Update Accept (TAU Accept) message indicates that the EPS update result in the Tracking Area Update Accept message indicates that the combined tracking area/location area has been updated, such as "combined TA/LA updated".
  • the user equipment receives the above-mentioned joint registration response message and confirms that the joint registration is successful.
  • the LAI information is carried in the local registration response message, and the user equipment saves the LAI information and records the location information that is successfully registered.
  • the LAI may be the MME local configuration or the user equipment receives the above-mentioned joint registration response message according to the location information mapping of the user equipment in the E-UTRAN, and confirms that the joint registration is successful.
  • the MME and the MSC create an SGs association for the user equipment. Thereafter, the CS service can be provided for the user equipment in the E-UTRAN network, as follows:
  • the user equipment sends an extended service request message (EXTENDED SERVICE REQUEST) to the MME.
  • EXTENDED SERVICE REQUEST an extended service request message
  • the MME instructs the E-UTRAN network to switch the user equipment to the GERAN/UTRAN network, and the end user equipment Return to the GERAN/UTRAN network to execute the calling process.
  • the MSC sends a paging message to the MME through the SGs interface; second, the MME passes
  • the E-UTRAN performs CS paging on the user equipment. After receiving the CS paging message by listening to the paging channel of the E-UTRAN, the user equipment returns from the E-UTRAN to the manner of the calling process.
  • the called party is executed in GERAN/UTRAN.
  • the user equipment in the above process refers to a multi-mode single-standby user equipment.
  • the user equipment in the foregoing process saves the locally configured LAI information
  • when the user equipment returns the GERAN/UTRAN from the E-UTRAN and obtains the LAI information from the GERAN/UTRAN broadcast channel it is likely that the LAI saved by the user equipment is inconsistent. Therefore, the user equipment needs to initiate a location update (LAU, Location Area Update) process to ensure the execution of the call service.
  • LAU Location Area Update
  • Embodiment 1 provides a method, an apparatus, and a system for establishing a service, which are mainly directed to a multimode multi-standby user equipment. The details are described below separately.
  • Embodiment 1 provides a method, an apparatus, and a system for establishing a service, which are mainly directed to a multimode multi-standby user equipment. The details are described below separately.
  • the user equipment may specifically be a multi-mode multi-standby user equipment.
  • a service processing method includes: a user equipment initiates a joint registration process to the E-UTRAN; and when determining that the joint registration process is successfully registered, enters a power saving mode to process the service.
  • the power saving mode is: the paging channel of the E-UTRAN is monitored by the user equipment. And the broadcast channel of the GERAN/UTRAN, but does not monitor the paging channel of the GERAN/UTRAN; when the user equipment is the calling party, accessing the CS domain through the GERAN/UTRAN completes the calling process; when the user equipment is called, passes the E The paging channel of the UTRAN receives the called page sent by the CS domain, and then accesses the CS domain through GERAN/UTRAN to complete the called procedure.
  • the user equipment initiates a joint registration process to the E-UTRAN.
  • the joint registration process can specifically be a federated attachment process or a federated tracking area update process. Specifically: 3 ⁇ 4 mouth:
  • a joint registration request message is sent to the MME.
  • the user equipment sends an Attach Request message to the MME, and the attachment type in the EPS Attach Type in the Attach Request message is indicated as a joint attachment, such as "combined EPS/IMSI attach"; or
  • the user equipment sends a tracking area update request (TAU Request) message to the MME, where the update type in the EPS update type message in the tracking area update request message is indicated as a joint tracking area/location area update, such as "combined" TA/LA updating".
  • TAU Request tracking area update request
  • the MME After receiving the foregoing request message, attach request message or tracking area update request message, the MME
  • An SGs association is established between the MSCs.
  • the MME sends an Update Location Request Update Location Request message to the MSC; the MSC returns an Update Location Accept Update Location Accept message to the MME.
  • the update location request message carries the location difference identifier (LAI) information, and after the MSC updates the location request message, the LAI is recorded in the context and is regarded as the registration location information.
  • the LAI may be locally configured by the MME or mapped according to location information in the E-UTRAN.
  • An SGs association is established between the MME and the MSC, and the MME returns a joint registration response message.
  • the MME sends an Attach Accept message, where the EPS Attach result is indicated as a joint attachment, such as "combined EPS/IMSI attach"; and, for example, the MME updates the transmission to the tracking area.
  • TAU Accept the EPS update result in the tracking area update accept message indicates that the combined tracking area/location area has been updated, such as "combined TA/LA updated”.
  • the user equipment receives the above-mentioned joint registration response message and confirms that the joint registration is successful.
  • the LAI information is carried in the joint registration response message, and the LAI information is saved and recorded as the location information of the registration success.
  • the LAI can be MME local configuration or residential The location information of the user equipment in the E-UTRAN is mapped.
  • the MME needs to select the MSC to create an SGs association for the user equipment. If the MME selects the MSC for the user equipment according to the configured LAI, and does not select the MSC according to the actual LAI of the GERAN/UTRAN, the MSC selected at this time is not necessarily the MSC that can serve the user equipment in the GERAN/UTRAN. If the MSC selected by the MME is not the MSC that can serve the user equipment, the user equipment needs to initiate a Location Update (LAU) process to ensure the execution of the call service.
  • LAU Location Update
  • the MME can acquire the LAI of the user equipment in the GERAN/UTRAN in real time, and then select the MSC according to the LAI to secure the location.
  • the selected MSC is the MSC at the GERAN/UTRAN Servo User Equipment. That is, the service processing method may further include:
  • the user equipment acquires the first LAI information, where the first LAI information is the LAI information corresponding to the GERAN/UTRAN where the user equipment is currently located, for example, the user equipment obtains the LAI information from the broadcast channel of the GERAN/UTRAN;
  • the step of the user equipment sending the joint registration request message to the MME may be: The user equipment sends a joint registration request message carrying the first LAI information to the MME, so that the MME selects the MSC according to the first LAI information.
  • a new field may be set in the joint registration request message, such as the joint attach request message or the joint tracking area update request message, to carry the first LAI information, after the MME receives the joint registration request message. Determining whether the new field carries information, if yes, indicating that the joint registration request message carries the first LAI information, and then selecting the MSC according to the first LAI information; if not, indicating that the joint registration request message is not.
  • the first LAI information is carried, and then the MSC is selected according to the prior art, for example, the MSC is selected according to the preset MSC identity.
  • the first LAI information is that the user equipment obtains LAI information from the broadcast channel of the GERAN/UTRAN.
  • the invention does not limit that the joint registration request message necessarily carries the first LAI information. If the MME is not carrying the first LAI information, the MME may select the MSC according to the existing mechanism, but the optimization function of carrying the first LAI may not be achieved at this time, but the subsequent resolution of the user equipment is not affected. Implementation of electricity.
  • the user equipment When determining that the joint registration process is successful, the user equipment enters a power saving mode to enter the service. Line processing.
  • the power saving mode refers to: the user equipment monitors the paging channel of the E-UTRAN and the broadcast channel of the GERAN/UTRAN, but does not listen to the paging channel of the GERAN/UTRAN; when the user equipment is the calling party, passes the GERAN/UTRAN Accessing the CS domain to complete the calling process; when the user equipment is called, receiving the called page sent by the CS domain through the paging channel of the E-UTRAN, and then accessing the CS domain through the GERAN/UTRAN to complete the called procedure. Since the user equipment does not listen to the paging channel of the CS domain, the energy consumption in the CS domain can be greatly reduced, thereby saving the power of the user equipment.
  • the MME can enter the power saving mode to process the service.
  • the current MME does not support the process of selecting the MSC according to the first LAI information provided by the user equipment (the MME does not upgrade, and does not identify the first LAI information carried in the registration request message), it is still based on the MME local.
  • the LAI is configured to select the MSC, and then the MSC selected by the MME may not be the serving MSC of the area where the user equipment is currently GERAN/UTRAN. If the MSC selected by the MME is not the serving MSC in the area where the user equipment is located, the user equipment needs to initiate an LAU process to ensure the execution of the call service.
  • the joint registration process is successful. Further, the user equipment may also confirm that the currently registered MSC is the user equipment.
  • the first LAI information selects MSC) before entering the power saving mode described in the embodiment of the present invention.
  • the LAI information may also be carried in the joint registration response message, where the LAI information is the LAI information corresponding to the MSC selected by the MME (ie, the MME selects the MSC according to the LAI information), for convenience of description, In the embodiment of the present invention, it is referred to as second LAI information.
  • the user equipment can further verify whether the MSC selected by the MME is the serving MSC of the area where the user equipment is currently located by comparing the second LAI information with the first LAI information, and enter the power saving mode when the determination is yes, Then, it does not enter the power saving mode, but operates according to the prior art process.
  • the method may be as follows: determining whether the second LAI information carried in the joint registration response message is consistent with the first LAI information sent by the user equipment to the MME, if the information is consistent, the user equipment enters a power saving mode; otherwise, if the information is inconsistent, the user equipment may Choose not to enter the power saving mode; or you can choose to enter the power saving mode, but At this time, the optimization effect when the second LAI information and the first LAI information are consistent may not be achieved. For example, the location update process needs to be performed before each service.
  • the method may further include:
  • the second LAI information carried in the joint registration accept message is determined to be consistent with the first LAI information sent by the user equipment to the MME.
  • this embodiment adopts a power saving mode for the multi-mode multi-standby user equipment.
  • the user equipment monitors the paging channel of the E-UTRAN and the broadcast channel of the GERAN/UTRAN, but does not Monitoring the paging channel of the GERAN/UTRAN, thereby saving the energy consumption of the user equipment in the CS domain, and saving the power consumption of the user equipment; at the same time, ensuring that the user experience of the multi-mode multi-standby user equipment is not affected
  • the GERAN/UTRAN accesses the CS domain to complete the calling process, and when called, the E-UTRAN paging channel can be used to receive the called paging sent by the CS domain, and then access to the CS domain through GERAN/UTRAN. Call the process. That is to say, with this solution, the power consumption of the user equipment can be saved without affecting the user experience of the multi-mode multi-standby user equipment.
  • a network device which may be an MME or other network entity having similar functions to the MME.
  • a service processing method which is applied to an E-UTRAN network of a terrestrial radio access network of an evolved universal mobile communication system, comprising: receiving a joint registration request message sent by a user equipment, where the joint registration request message carries the first LAI information,
  • the first LAI information is LAI information corresponding to the GERAN/UTRAN where the user equipment is currently located; the mobile switching center MSC is selected for the user equipment according to the first LAI information; and the joint registration response message is sent to the user equipment.
  • the user equipment may determine whether to enter the power saving mode according to the joint registration response message.
  • the power saving mode is: the user equipment monitors the paging channel of the E-UTRAN and the broadcast channel of the GERAN/UTRAN, but does not listen to the paging channel of the GERAN/UTRAN; when the calling party accesses the CS domain through the GERAN/UTRAN Calling process; when called, use the paging channel of E-UTRAN to receive the called page sent by the CS domain, and then access the CS domain through GERAN/UTRAN to complete the called flow. Cheng.
  • the MME receives the joint registration request message sent by the user equipment, where the joint registration request message is specifically a joint attach request message or a joint tracking area update request message;
  • the first LAI information may be carried in the joint registration request message, so that the MME selects the MSC according to the first LAI information. That is, the specific can be as follows:
  • the first registration LAI information carries the first LAI information, where the first LAI information is the LAI information corresponding to the current location of the GERAN/UTRAN of the user equipment;
  • the method may further include:
  • the mobile switching center MSC is selected for the user equipment according to the first LAI information, so that the user equipment uses the selected MSC to process the service.
  • the MME sends a joint registration response message to the user equipment, to trigger the user equipment to enter the power saving mode.
  • the power saving mode refers to: the user equipment monitors the paging channel of the E-UTRAN and the broadcast channel of the GERAN/UTRAN, but does not listen to the paging channel of the GERAN/UTRAN; when the calling party passes the GERAN/ The UTRAN accesses the CS domain to complete the calling process; when called, the E-UTRAN paging channel is used to receive the called paging sent by the CS domain, and then the GERAN/UTRAN accesses the CS domain to complete the called flow. Since the user equipment does not listen to the paging channel of the CS domain, the energy consumption in the CS domain can be greatly reduced, thereby saving the power of the user equipment.
  • the MME After the MME selects the MSC for the user equipment, for example, after selecting the MSC for the user equipment according to the first LAI information, the MME sends a Location Update Request message to the selected MSC, and the MSC returns a Location Update Accept message to the MME. Then, the MME sends a joint registration response message, such as a joint attach accept message or a joint location update accept message, to the user equipment to trigger the user equipment to enter the power save mode. Further, the joint registration response message may carry the second LAI, so that the user equipment receives the joint registration response.
  • a joint registration response message such as a joint attach accept message or a joint location update accept message
  • the second LAI information and the first LAI information are compared to further verify whether the MSC selected by the MME is the serving MSC of the current GERAN/UTRAN area of the user equipment, and when the determination is yes, the power saving mode is entered. Otherwise, it does not enter the power saving mode, but operates according to the flow of the prior art. That is, when the second LAI information is carried in the joint registration response message, the step of "triggering the user equipment to enter the power saving mode" may be as follows:
  • the user equipment determines whether the second LAI information carried in the joint registration response message is consistent with the first LAI information sent by the user equipment to the MME. If they are consistent, the user equipment enters the power saving mode; if not, the user equipment You can not enter the power saving mode.
  • the user equipment determines that the second LAI information carried in the joint registration response message is inconsistent with the first LAI information sent by the user equipment to the MME, the user may also enter the power saving mode, but the second LAI information may not be reached at this time.
  • this embodiment adopts a power saving mode for the multi-mode multi-standby user equipment.
  • the power saving mode can be entered.
  • the user equipment monitors the paging channel of the E-UTRAN and the broadcast channel of the GERAN/UTRAN, but does not monitor the paging channel of the GERAN/UTRAN, thereby greatly saving the user equipment in the CS domain. Energy consumption, to achieve the purpose of saving electricity.
  • the calling process when the calling party is called, the calling process can be completed by the GERAN/UTRAN accessing the CS domain, and when the called party is used, the paging channel of the E-UTRAN can be used to receive the CS domain sending.
  • the called page is called, and then the GERAN/UTRAN accesses the CS domain to complete the called process, thereby ensuring the user experience of the multi-mode multi-standby user equipment. That is to say, with this solution, the power consumption of the user equipment can be saved without affecting the user experience of the multi-mode multi-standby user equipment.
  • the network device is specifically referred to as an MME as an example.
  • the user equipment may be a multi-mode multi-standby user equipment, and the following uniform cylinders are called user equipments.
  • the user equipment works in both the GERAN/UTRAN network environment and the E-UTRAN network environment. Specific :3 ⁇ 4 mouth:
  • the user equipment operates in the GERAN/UTRAN network environment and listens to the GERAN/UTRAN broadcast channel without listening to the paging channel. Not listening to the paging channel will greatly save the user equipment in
  • the user equipment works in the GERAN/UTRAN network environment, it also works in the E-UTRAN environment.
  • the user equipment performs a joint registration process in the E-UTRAN network, such as performing a joint attached process or a joint update process.
  • the user equipment obtains LAI information according to the current LAI information of the user equipment obtained in the GERAN/UTRAN (by monitoring the GERAN/UTRAN broadcast channel), that is, the first LAI information, by jointly registering the request message, for example, through the joint
  • the attach request or the joint tracking area update request notifies the MME of the first LAI information, and then the MME selects the MSC according to the first LAI information provided by the user equipment.
  • the process of the service processing method provided in this embodiment may be specifically as follows: 301.
  • the user equipment obtains the first LAI information by monitoring the broadcast channel of the GERAN/UTRAN.
  • the first LAI information is corresponding LAI information in a GERAN/UTRAN environment in which the user equipment is currently working.
  • the user equipment sends a joint attach request message (Attach Request) to the MME, where the joint attach request message carries the first LAI information, and may also carry an attach type, where the attach type may be Set to the combined attachment type (combined EPS/IMSI attach ).
  • Attach Request a joint attach request message
  • the attach type may be Set to the combined attachment type (combined EPS/IMSI attach ).
  • the MME selects the MSC according to the first LAI information. For example, the MME may perform domain name (DNS, Domain Name System) parsing according to the first LAI information to obtain an MSC address, for example, obtain an MSC number (MSC Number). If the MSC address is obtained by parsing, the MME may also apply an International Mobile Subscriber Identification Number hash function (IMSI hash function) to select a suitable MSC.
  • the MSC selected by the MME according to the first LAI information is a user equipment that can serve the GERAN/UTRAN network working environment corresponding to the first LAI information.
  • the MME sends a location update request message (Location Update Request) to the selected MSC, where the location update request message can carry the first LAI information.
  • Location Update Request a location update request message
  • the MSC returns a location update accept message (Location Update Accept) to the MME, where the location update accept message carries the Temporary Mobile Subscriber Identity (TMSI) information allocated by the MSC for the user equipment, according to which the MME and the MSC An SGs association has been created for the user device.
  • TMSI Temporary Mobile Subscriber Identity
  • the MME sends a joint attach accept message (Attach Accept) to the user equipment, where the joint attach accept message carries the TMSI information and the second LAI information, where the TMSI information is the TMSI allocated by the MSC to the user equipment in step 305.
  • Information, and the second LAI information is the first LAI information used to select the MSC in step 303, or if the MSC is not selected according to the first LAI information in step 303, then the second LAI information is The LAI information corresponding to the selected MSC, for example, the LAI locally configured by the MME.
  • the user equipment After receiving the joint attach accept message, the user equipment saves the TMSI information and saves the second LAI information, and the user equipment can enter the power saving mode. Further, the user equipment determines whether the first LAI information and the second LAI information are consistent. If they are consistent, the power saving mode is entered. If they are inconsistent, the power saving mode is not entered, but the subsequent operations are performed according to the existing process.
  • the user equipment In the power saving mode, the user equipment does not listen to the paging channel in the GERAN/UTRAN network environment, but listens to the broadcast channel.
  • the call service process in the power saving mode may specifically be as follows: (1) calling service;
  • the user equipment completes the calling process directly in GERAN/UTRAN.
  • the user equipment completes the calling process directly in GERAN/UTRAN.
  • the prior art for completing the calling process in the GERAN/UTRAN.
  • the user equipment needs to send an extended service request message (EXTENDED SERVICE REQUEST) to the MME, and then the MME indicates that the E-UTRAN network will The user equipment switches to GERAN/UTRAN so that the user equipment can return to GERAN/UTRAN to perform the calling procedure.
  • EXTENDED SERVICE REQUEST extended service request message
  • the user equipment ie, multi-mode multi-standby user equipment
  • the user equipment does not need to switch from E-UTRAN to GERAN/UTRAN, but Directly The calling process is executed in the GERAN/UTRAN, so the signaling process can be greatly saved and the efficiency of the calling service can be improved compared with the existing dual-mode single-standby user equipment.
  • step 307 when it is determined that the first LAI information and the second LAI information are inconsistent, the power saving mode may also be selected, but the foregoing second LAI information and the first may not be reached at this time.
  • the optimization effect when the LAI information is consistent for example, the location update process needs to be performed before each business.
  • the first LAI information and the second LAI information may not be judged, but the power saving mode is directly entered, but in this case, the calling party is subsequently processed.
  • the LAI information ie, the first LAI information
  • the user equipment needs to be in the GERAN/UTRAN network (ie, CS).
  • the LAU process is initiated in the domain, and then the calling business process is executed.
  • the processing of the LAI information in step 307 can ensure that the user equipment currently obtains the LAI information and the saved LAI information from the GERAN/UTRAN broadcast information. Consistency can avoid redundant LAU processes and ensure the efficiency of calling services.
  • the MSC forwards the called page to the user equipment through the MME, and then the user equipment completes the called procedure through GERAN/UTRAN.
  • the MSC receives a terminal (MT, Mobile Terminated), at this time, the MSC sends a paging message to the MME through the SGs interface, and then, the MME After the CS paging is performed on the user equipment by using the E-UTRAN, after receiving the CS paging message, the user equipment returns from the E-UTRAN to the GERAN/UTRAN to perform the called procedure through a manner similar to the calling procedure.
  • the multi-mode multi-standby user equipment already works in the GERAN/UTRAN, the user equipment (ie, the multi-mode multi-standby user equipment) does not need to be switched from the E-UTRAN to
  • the first LAI information and the second LAI information may not be judged, but the power saving mode is directly entered, but in this case, the called service is subsequently processed.
  • the LAI information ie, the first LAI information
  • the user equipment ie, the first LAI information
  • the saved LAI information the second LAI information
  • the processing of the LAI information in step 307 may ensure that the user equipment currently obtains the LAI information and the saved LAI information from the GERAN/UTRAN broadcast information. Consistency can avoid redundant LAU processes and ensure the efficiency of calling services.
  • this embodiment adopts a power saving mode for the multi-mode multi-standby user equipment.
  • the user equipment monitors the paging channel of the E-UTRAN and the broadcast channel of the GERAN/UTRAN, but does not Monitoring the paging channel of the GERAN/UTRAN, thereby saving the energy consumption of the user equipment in the CS domain, and saving the power consumption of the user equipment; at the same time, ensuring that the user experience of the multi-mode multi-standby user equipment is not affected
  • the power saving mode when calling, the calling party can complete the calling process through the GERAN/UTRAN access, and when called, the paging channel of the E-UTRAN can be used to receive the called party sent by the CS domain. Paging, and then accessing the CS domain through GERAN/UTRAN to complete the called process. That is to say, with this solution, the power consumption of the user equipment can be saved without affecting the user experience of the multi-mode multi-standby user equipment.
  • the MME selects the MSC by using the first LAI information provided by the user equipment, so that the user equipment can be prevented from initiating a redundant LAU process, and the user equipment is guaranteed to work in the GERAN/ The efficiency of the business in the UTRAN environment.
  • the joint registration request message is specifically a joint attached message as an example.
  • the joint registration request message may also be a joint tracking area update message. Therefore, in this embodiment, the joint registration request message is specifically a joint tracking area update message as an example. as follows:
  • the user equipment completes the joint attach process and enters the power saving mode, and then the user device learns
  • the LAI information in the GERAN/UTRAN network changes, that is, the GERAN/UTRAN broadcast channel is monitored, and the first LAI information obtained from the broadcast information of the GERAN/UTRAN is inconsistent with the currently saved LAI information (the second LAI information), and the user equipment is
  • the E-UTRAN network initiates a joint tracking area update procedure: the latest first LAI information is notified to the MME through the joint location update message, and the MME initiates a location update procedure to the MSC.
  • the process of the service processing method provided in this embodiment may be specifically To: 3 ⁇ 4 mouth:
  • the user equipment learns the LAI information change in the GERAN/UTRAN network, that is, the GERAN/UTRAN broadcast channel, the first LAI information obtained from the broadcast information of the GERAN/UTRAN, and the currently saved LAI information (the second LAI information). Inconsistent, the user equipment initiates a joint tracking area update process on the E-UTRAN network, that is, step 402 is performed.
  • the user equipment sends a joint tracking area update request message (TAU Request) to the MME.
  • the associated tracking area update request message may carry an update type (Update Type), and is set to a combined tracking type.
  • the joint tracking area update request message carries the first LAI information.
  • the MSC After receiving the tracking area update request message, the MSC selects the MSC according to the first LAI information carried in the tracking area update request message.
  • DNS resolution is performed based on the first LAI information to obtain an MSC address, such as an MSC number. If multiple MSC addresses are obtained by parsing, then an IMSI hash function can also be applied to select a suitable MSC.
  • the MSC selected by the MME according to the first LAI information is a user equipment that can serve the working environment of the GERAN/UTRAN network corresponding to the first LAI information.
  • the MME sends a location update request message to the selected MSC, where the location update request message carries the first LAI information.
  • the MSC After receiving the location update request message, the MSC saves the first LAI information, and records that the user equipment is currently working in the GERAN/UTRAN network working environment corresponding to the first LAI information, and the MSC provides services for the user equipment.
  • the MSC returns a location update accept message to the MME, where the location update accept message carries the TMSI information allocated by the MSC for the user equipment, and accordingly, the MME and the MSC create an SGs association for the user equipment.
  • the MME sends a joint tracking area update accept message (TAU Accept) to the user equipment, where the joint tracking area update accept message carries the TMSI information and the second LAI information. among them,
  • the TMSI information is the TMSI information allocated by the MSC to the user equipment in step 405, and the second LAI information is the first LAI information used to select the MSC in step 403.
  • the user equipment After receiving the joint tracking area update accept message, the user equipment saves the TMSI information and saves the second LAI information. The user equipment determines whether the first LAI information and the second LAI information are Consistent, if they are consistent, enter (or maintain) the power saving mode. If they are inconsistent, they will not enter (or exit) the power saving mode, but follow the existing process for subsequent operations.
  • the user equipment In the power saving mode, the user equipment does not listen to the paging channel in the GERAN/UTRAN network environment, but listens to the broadcast channel.
  • the call service process in the power saving mode may specifically be as follows: (1) calling service;
  • the user equipment completes the calling process directly in GERAN/UTRAN.
  • the user equipment completes the calling process directly in GERAN/UTRAN.
  • the prior art for completing the calling process in the GERAN/UTRAN.
  • the user equipment needs to send an extended service request message to the MME, and then the MME instructs the E-UTRAN to switch the user equipment to GERAN/ UTRAN, enables the user equipment to return to GERAN/UTRAN to perform the calling process.
  • the multimode multi-standby user equipment works simultaneously in the E-UTRAN and
  • the user equipment ie multi-mode multi-standby user equipment
  • the user equipment does not need to switch from E-UTRAN to GERAN/UTRAN, but performs the calling procedure directly in GERAN/UTRAN, so compared to the existing dual-mode single-standby
  • the signaling process can be greatly saved and the efficiency of the call service can be improved.
  • step 307 when it is determined that the first LAI information and the second LAI information are inconsistent, the power saving mode may also be selected, but the foregoing second LAI information and the first may not be reached at this time.
  • the optimization effect when the LAI information is consistent for example, the location update process needs to be performed before each business.
  • step 407 the first LAI information and the second may not be used.
  • the user equipment if the LAI information is consistent or not, but directly enters the power saving mode, but in this case, if the calling service is subsequently processed, if the user equipment currently obtains the LAI information (ie, the first LAI information) from the GERAN/UTRAN broadcast information. Inconsistent with the saved LAI information (ie, the second LAI information), the user equipment needs to initiate the LAU process in GERAN/UTRAN (ie, CS domain), and then execute the calling service flow. That is, the processing of the LAI information in step 407 (ie, determining whether the first LAI information and the second LAI information are consistent) may ensure that the user equipment currently obtains the LAI information and the saved LAI information from the GERAN/UTRAN broadcast information. Consistency can avoid redundant LAU processes and ensure the efficiency of calling services.
  • the MSC For the existing dual-mode single-standby user equipment, when the called party, the MSC receives a terminal (MT, Mobile Terminated), at this time, the MSC sends a paging message to the MME through the SGs interface, and then, the MME CS paging is performed on the user equipment through the E-UTRAN network. After receiving the CS paging message, the user equipment returns from the E-UTRAN to the GERAN/UTRAN to perform the called procedure through a manner similar to the calling procedure. In this embodiment, since the multi-mode multi-standby user equipment already works in the GERAN/UTRAN, the user equipment (ie, the multi-mode multi-standby user equipment) does not need to be switched from the E-UTRAN to
  • the first LAI information and the second LAI information may not be judged, but the power saving mode is directly entered, but in this case, the called service is subsequently processed. If the LAI information (ie, the first LAI information) currently obtained by the user equipment from the GERAN/UTRAN broadcast information is inconsistent with the saved LAI information, the user equipment needs to initiate the LAU process in the GERAN/UTRAN network, and then execute the called party. Business Process. That is, the processing of the LAI information in step 407 (ie, determining whether the first LAI information and the second LAI information are consistent) may ensure that the user equipment currently obtains the LAI information and the saved LAI information from the GERAN/UTRAN broadcast information. Consistency can avoid redundant LAU processes and ensure the efficiency of calling services.
  • this embodiment adopts a power saving mode for the multi-mode multi-standby user equipment, and the user equipment first completes the joint registration process in the E-UTRAN, and then listens to the paging channel of the E-UTRAN and the GERAN/UTRAN. Broadcast channel, but does not monitor the paging channel of GERAN/UTRAN, thereby saving energy consumption of user equipment in the CS domain and achieving power saving.
  • the calling party when calling, the calling party is completed by accessing the CS domain through GERAN/UTRAN; when called, the paging channel sent by the CS domain is received by the paging channel of the E-UTRAN, and then passed through the GERAN/ The UTRAN accesses the CS domain to complete the called process, ensuring the user experience of the multimode multi-standby user equipment.
  • the power consumption of the user equipment can be saved without affecting the user experience of the multi-mode multi-standby user equipment.
  • the MME selects the MSC by using the first LAI information provided by the user equipment, so that the user equipment can be prevented from initiating a redundant LAU process, and the user equipment is guaranteed to work in the GERAN/ The efficiency of the business in the UTRAN environment.
  • the embodiment of the present invention further provides a user equipment, which is a multi-mode multi-standby user equipment.
  • the user equipment includes an initiating unit 501 and a processing unit 502.
  • An initiating unit 501 configured to initiate a joint registration process to the E-UTRAN
  • the joint registration process may specifically be a joint attachment process or a joint tracking area update process.
  • the processing unit 502 is configured to: when the registration of the joint registration process is successful, monitor the paging channel of the E-UTRAN, and not listen to the paging channel of the GERAN/UTRAN; when calling, complete the calling by accessing the CS domain through the GERAN/UTRAN.
  • the called party uses the paging channel of the E-UTRAN to receive the called page sent by the CS domain, and then accesses the CS domain through the GERAN/UTRAN to complete the called procedure.
  • the user equipment monitors the paging channel of the E-UTRAN and does not listen to the paging channel of the GERAN/UTRAN; when the calling party accesses the CS domain through the GERAN/UTRAN, The calling process; when the called party uses the paging channel of the E-UTRAN to receive the called page sent by the CS domain, and then accesses the CS domain through the GERAN/UTRAN to complete the called process, this operation mode is called power saving. mode.
  • the initiating unit 501 is specifically configured to send a joint registration request message to the MME.
  • the joint registration request message may specifically be a joint attach request message or a joint tracking area update request message;
  • the processing unit 502 is specifically configured to: when receiving the joint registration response message sent by the MME, enter a power saving mode to process the service;
  • the processing unit 502 monitors the paging channel of the E-UTRAN when receiving the joint registration response message sent by the MME, and does not monitor the global mobile communication system/enhanced data rate global mobile communication system radio access network GERAN/universal mobile communication system terrestrial wireless
  • the paging channel of the access network UTRAN when the calling party accesses the CS domain through the GERAN/UTRAN to complete the calling procedure; when the called party uses the paging channel of the E-UTRAN to receive the called paging sent by the CS domain, Then the GERAN/UTRAN accesses the CS domain to complete the called process.
  • the joint registration response message may specifically be a joint attach accept message or a joint tracking area. Update acceptance message.
  • the MME may select the MSC for the user equipment according to the preset MSC identity.
  • the MSC selected at this time is not necessarily the MSC in the GERAN/UTRAN capable of serving the user equipment. If the MSC selected by the MME is not the MSC that can serve the user equipment in the GERAN/UTRAN, the user equipment needs to initiate an LAU procedure to ensure the execution of the call service.
  • the MME can obtain the location information of the user equipment in real time, in addition to the MME that can be selected according to the preset MSC identifier. For example, the LAI information is then selected according to the location information to ensure that the selected MSC is an MSC capable of serving the GERAN/UTRAN where the user equipment is currently located. That is, as shown in FIG. 5b, the user equipment may further include an obtaining unit 503;
  • the obtaining unit 503 is configured to obtain the first LAI information, where the first LAI information is LAI information corresponding to the GERAN/UTRAN where the user equipment is currently located;
  • the initiating unit 501 is specifically configured to send a joint registration request message carrying the first LAI information to
  • the MME may select the MSC according to the first LAI information.
  • a new field may be set in the joint registration request message, such as the joint attach request message or the joint tracking area update request message, to carry the first LAI information, after the MME receives the joint registration request message. Determining whether the new field carries information, if yes, indicating that the joint registration request message carries the first LAI information, and then selecting the MSC according to the first LAI information; if not, indicating that the joint registration request message is not The first LAI information is carried, and then the MSC is selected according to the prior art, for example, the MSC is selected according to the preset MSC identity.
  • the user equipment may further include a saving unit.
  • the saving unit 504 is configured to save the second location distinguishing code LAI information on the user equipment, where the second LAI information is the LAI information saved after the user equipment enters the power saving mode;
  • the obtaining unit 503 is configured to acquire first LAI information, where the first LAI information is a user equipment LAI information corresponding to the current CS domain network;
  • the initiating unit 501 is specifically configured to determine whether the location of the user equipment has changed by comparing whether the first LAI information and the second LAI information are consistent after the user equipment enters the power saving mode. If the change occurs, the user equipment initiates the joint. Location update process.
  • the user equipment When the user equipment receives the joint registration response message sent by the MME, such as the joint attach reception message or the joint location update message, the user equipment can enter the power saving mode to process the service.
  • the joint registration response message sent by the MME such as the joint attach reception message or the joint location update message
  • the second LAI information may be carried in the joint registration response message, in order to prevent the MSC that is selected by the MME from being the user equipment.
  • the user equipment may further verify whether the MSC selected by the MME is an MSC that can serve the GERAN/UTRAN where the user equipment is currently located by comparing the second LAI information with the first LAI information, and enter the power saving mode when the determination is yes, otherwise , instead of entering the power saving mode, the operation is performed according to the prior art process.
  • the processing unit 502 is specifically configured to enter a power saving mode when receiving the joint registration response message that is sent by the MME and carrying the second LAI information, and determining that the second LAI information is consistent with the first LAI information.
  • the processing unit 502 when receiving the joint registration response message that carries the second LAI information sent by the MME, and determines that the second LAI information is consistent with the first LAI information, monitors the paging channel of the E-UTRAN, and does not monitor the global mobile communication system/enhancement Type data rate Global mobile communication system Radio access network GERAN/Universal Mobile Telecommunications System Terrestrial Radio Access Network UTRAN paging channel; At the time of calling, access to the CS domain through GERAN/UTRAN completes the calling process; The called channel of the E-UTRAN is used to receive the called page sent by the CS domain, and then the GERAN/UTRAN accesses the CS domain to complete the called procedure.
  • each of the above units may be implemented as a separate entity, or may be implemented in any combination, as one or several entities, or may be integrated as a module on an existing user equipment. , and many more.
  • the processing unit 502 of the user equipment can enter a power saving mode under the trigger of the MME.
  • the user equipment monitors the paging channel of the E-UTRAN without listening to the GERAN. / UTRAN paging channel, which can save user equipment in the CS domain
  • the energy consumption is achieved for the purpose of saving the power consumption of the user equipment; at the same time, in order to avoid affecting the service of the CS domain by not listening to the paging channel of the GERAN/UTRAN, in the power saving mode, the initiating unit of the user equipment 501 may initiate a joint registration procedure to establish an association relationship between E-UTRAN and GERAN/UTRAN.
  • the calling party may complete the calling process through GERAN/UTRAN, and when called, may use E. -
  • the paging channel of the UTRAN receives the called page sent by the CS domain, and then accesses the CS domain through the GERAN/UTRAN to complete the called process, thereby ensuring that the user equipment can complete the call service in the CS domain in time, ensuring multi-mode and multi-mode User experience of the user equipment. That is to say, with this solution, the power consumption of the user equipment can be saved without affecting the user experience of the multi-mode multi-standby user equipment.
  • the MME selects the MSC by using the first LAI information provided by the user equipment, so that the user equipment can be prevented from initiating a redundant LAU process, and the user equipment is guaranteed to work in the GERAN/ The efficiency of the business in the UTRAN environment.
  • the embodiment of the present invention further provides a network side device, as shown in FIG. 6a, the network side device includes a receiving unit 601 and a sending unit 602;
  • the receiving unit 601 is configured to receive a joint registration request message sent by the user equipment.
  • the joint registration request message may specifically be a joint attach request message or a joint tracking area update request message;
  • the sending unit 602 is configured to send a joint registration response message to the user equipment.
  • the registration response message may trigger the user equipment to enter a power saving mode; wherein, the power saving mode is: the user equipment listens to the paging channel of the E-UTRAN, does not listen to the paging channel of the GERAN/UTRAN; when calling, passes the GERAN/UTRAN The access CS domain completes the calling process; when called, the paging channel sent by the E-UTRAN is used to receive the called paging sent by the CS domain, and then the GERAN/UTRAN accesses the CS domain to complete the called flow.
  • the power saving mode is: the user equipment listens to the paging channel of the E-UTRAN, does not listen to the paging channel of the GERAN/UTRAN; when calling, passes the GERAN/UTRAN The access CS domain completes the calling process; when called, the paging channel sent by the E-UTRAN is used to receive the called paging sent by the CS domain, and then the GERAN/UTRAN accesses the CS domain to complete the called
  • the joint registration response message may specifically be a joint attach accept message or a joint tracking area update accept message.
  • the first LAI may be carried in the joint registration request message. Information, so that the MME can The first LAI information is used to select the MSC. That is, as shown in Figure 6b, the network side device may further include a selection unit 603;
  • the receiving unit 601 is specifically configured to receive a joint registration request message that is sent by the user equipment and carries the first LAI information.
  • the selecting unit 603 is configured to select an MSC for the user equipment according to the first LAI information, so that the user equipment processes the service by using the selected MSC.
  • the user equipment After receiving the joint registration response message sent by the network side device, the user equipment can directly enter the power saving mode.
  • the joint registration response message may further carry the second LAI, so that after receiving the joint registration response message, the user equipment may compare the first The second LAI information and the first LAI information are used to further verify whether the MSC selected by the MME is the serving MSC of the area where the user equipment is currently located, and enters the power saving mode when it is determined to be YES. Otherwise, the power saving mode is not entered, but The prior art process operates. That is, the network side device may further include an acquiring unit;
  • An obtaining unit configured to acquire second LAI information when the selecting unit 603 cannot select the MSC according to the first LAI information
  • the sending unit 602 is specifically configured to send a joint registration response message carrying the second LAI information to the user equipment, so that the user equipment enters the power saving mode when determining that the second LAI information and the first LAI information are consistent.
  • the network side device may specifically be an MME or other device having similar functions to the MME.
  • each of the foregoing units may be implemented as a separate entity, or may be implemented in any combination, as one or several entities, or may be integrated into an existing MME as a module. and many more.
  • the device enters a power saving mode.
  • the user equipment monitors the paging channel of the E-UTRAN and the broadcast channel of the GERAN/UTRAN, but does not monitor the paging channel of the GERAN/UTRAN, thereby achieving the purpose of power saving.
  • the selection of the MME The selecting unit 603 can select the MSC according to the first LAI information provided by the user equipment, so that the user equipment can be prevented from initiating a redundant LAU process, and the efficiency of the service of the user equipment in the GERAN/UTRAN environment is guaranteed.
  • Example VIII Example VIII.
  • the embodiment of the present invention provides a communication system, including any user equipment and any network side device provided by the embodiment of the present invention.
  • a communication system including any user equipment and any network side device provided by the embodiment of the present invention.
  • Embodiment 6 and Embodiment 7 for the user equipment and the network side device, and details are not described herein again.
  • it can be as follows:
  • the user equipment is configured to initiate a joint registration process in the E-UTRAN, and when determining that the joint registration process is successfully registered, enter a power saving mode to process the service;
  • the network side device is configured to receive a joint registration request message sent by the user equipment, and send a joint registration response message to the user equipment, to trigger the user equipment to enter a power saving mode.
  • the power saving mode is: the user equipment monitors the paging channel of the E-UTRAN, and does not listen to the paging channel of the GERAN/UTRAN; when the calling party accesses the CS domain through the GERAN/UTRAN, the calling process is completed; The called channel of the E-UTRAN is used to receive the called page sent by the CS domain, and then the GERAN/UTRAN accesses the CS domain to complete the called procedure.
  • the communication system of this embodiment adopts a power saving mode for the multi-mode multi-standby user equipment.
  • the user equipment monitors the paging channel of the E-UTRAN and the broadcast channel of the GERAN/UTRAN.
  • the paging channel of the GERAN/UTRAN is not monitored, so that the energy consumption of the user equipment in the CS domain can be saved, thereby saving the power consumption of the user equipment; at the same time, in order to ensure that the multi-mode multi-standby user equipment is not affected User experience, in the power saving mode, when the calling party can access the CS domain through GERAN/UTRAN to complete the calling process, and when called, the paging channel of the E-UTRAN can be used to receive the CS domain transmission. The called page is called, and then the GERAN/UTRAN accesses the CS domain to complete the called process. That is to say, with this solution, the power consumption of the user equipment can be saved without affecting the user experience of the multi-mode multi-standby user equipment.
  • the MME selects the MSC by using the first LAI information provided by the user equipment, so that the user equipment can be prevented from initiating a redundant LAU process, and the user equipment is guaranteed to work in the GERAN/ The efficiency of the business in the UTRAN environment.
  • the program can be executed by instructing related hardware, and the program can be stored in a computer readable storage medium, and the storage medium can include: a read only memory (ROM), a random access memory (RAM, Random Access Memory ) , disk or CD, etc.

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Abstract

一种业务处理方法，包括：用户设备（UE）向演进的通用移动通信系统陆地无线接入网（E-UTRAN）发起联合注册流程（101）；UE在确定联合注册流程注册成功时，进入省电模式，以对业务进行处理（102）。所述省电模式为：监听E-UTRAN的寻呼信道，不监听全球移动通讯系统、增强型数据速率全球移动通讯系统无线接入网/通用移动通信系统陆地无线接入网（GERAN/UTRAN）的寻呼信道；在主叫时，通过GERAN/UTRAN 接入电路交换（CS）域完成主叫流程；在被叫时，利用E-UTRAN的寻呼信道接收CS域发送的被叫寻呼，然后通过GERAN/UTRAN接入CS域完成被叫流程。此外，还提供另一种业务处理方法以及相应的UE、网络测设备和通信系统。本发明在不影响多模多待UE的用户体验的情况下，节省了UE的用电量。

Description

一种业务处理方法、 装置和系统 技术领域
本发明涉及通信技术领域， 具体涉及一种业务处理方法、 装置和系统。
背景技术
多模多待用户设备 ( User Equipment ) , 指的是支持全球移动通讯系统 / 增强型数据速率全球移动通讯系统无线接入网 （GERAN, GSM EDGE Radio Access Network )或通用移动通信系统陆地无线接入网 （UTRAN, UMTS Terrestrial Radio Access Network ) , 和演进的通用移动通信系统陆地无线接 入网 ( E-UTRAN, Universal Mobile Telecommunications System Territorial R adio Access Network )模式分别独立通信和同时通信的用户设备。 通过 GERA N/UTRAN可以接入电路交换（CS , Circuit Switched )域； 通过 E-UTRAN可以 接入分组（PS, Packet Switched )域。 其中， CS域的核心网元主要包括移动 交换中心 （MSC, Mobile Switch Center ) ； 而分组域指的是演进的分组网络 ( EPS , evolved packet system ) , 其核心网元主要包含移动管理实体（ MME, Mobility Management Entity ) 、 月良务网关（S-GW, Serving Gateway )和分组 数据网网关（P-GW, Packet Data Network Gateway ) 。
在对现有技术的研究和实践过程中， 本发明的发明人发现， 现有技术中， 由于多模多待用户设备会同时在 GERAN/UTRAN和 E-UTRAN模式下工作 （也 就是多待机） ， 所以对用户设备来说， 比较耗电。
发明内容
本发明实施例提供一种业务处理方法、装置和系统， 可以在不影响多模多 待用户设备的用户体验的前提下， 节省用户设备的用电量。
本发明一方面提供一种业务处理方法， 包括：
用户设备向演进的通用移动通信系统陆地无线接入网 E-UTRAN发起联 合注册流程；
在确定联合注册流程注册成功后， 用户设备监听 E-UTRAN 的寻呼信道 ( paging channel ),不监听全球移动通讯系统 /增强型数据速率全球移动通讯系 统无线接入网 GERAN/通用移动通信系统陆地无线接入网 UTRAN的寻呼信 道；
当用户设备为主叫时， 通过 GERAN/UTRAN接入 CS域完成主叫流程； 当用户设备为被叫时， 通过 E-UTRAN的寻呼信道接收 CS域发送的被叫寻 呼， 通过 GERAN/UTRAN接入 CS域完成被叫流程。
本发明另一方面提供一种业务处理方法，应用于演进的通用移动通信系统 陆地无线接入网 E-UTRAN网络中， 包括：
接收用户设备发送的联合注册请求消息，所述联合注册请求消息中携带第 一 LAI信息，所述第一 LAI信息为用户设备当前所在的 GERAN/UTRAN对应 的 LAI信息；
根据第一 LAI信息为用户设备选择移动交换中心 MSC;
发送联合注册响应消息给用户设备。
本发明另一方面提供一种用户设备， 包括：
发起单元， 用于向 E-UTRAN发起联合注册流程；
处理单元， 用于在确定联合注册流程注册成功时， 监听 E-UTRAN的寻呼 信道 （ paging channel ) 和 GERAN/UTRAN的广播信道， 但不监听 GERAN/UTRAN的寻呼信道； 在主叫时， 通过 GERAN/UTRAN接入 CS域完成 主叫流程； 在被叫时， 利用 E-UTRAN的寻呼信道接收 CS域发送的被叫寻呼， 然后通过 GERAN/UTRAN接入 CS域完成被叫流程。
本发明另一方面提供一种网络侧设备， 包括：
接收单元， 用于接收用户设备发送的联合注册请求消息， 所述联合注册请 求消息中携带第一 LAI 信息， 所述第一 LAI 信息为用户设备当前所在的 GERAN/UTRAN对应的 LAI信息；
选择单元， 用于根据第一 LAI信息为用户设备选择移动交换中心 MSC; 发送单元， 用于发送联合注册响应消息给用户设备。
本发明另一方面提供一种通信系统，包括本发明实施例提供的任一种用户 设备和任一种网络侧设备。
本发明实施例采用为多模多待用户设备设置一种省电模式，在该省电模式 下， 用户设备监听 E-UTRAN的寻呼信道和 GERAN/UTRAN的广播信道， 但不 监听 GERAN/UTRAN的寻呼信道， 在主叫时， 通过 GERAN/UTRAN接入 CS域 完成主叫流程， 而在被叫时， 则利用 E-UTRAN的寻呼信道接收 CS域发送的被 叫寻呼， 然后通过 GERAN/UTRAN接入 CS域完成被叫流程， 从而在保证多模 多待用户设备的用户体验同时， 节省用户设备在 CS域中的能量消耗， 达到节 省用户设备的耗电量的目的。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施 例或现有技术描述中所需要使用的附图作筒单地介绍，显而易见地， 下面描述 中的附图仅仅是本发明的一些实施例，对于本领域技术人员来讲，在不付出创 造性劳动的前提下， 还可以根据这些附图获得其他的附图。
图 la是 CS回落的网络场景示意图；
图 lb是本发明实施例提供的业务处理方法的流程图；
图 2是本发明实施例提供的业务处理方法的另一流程图；
图 3是本发明实施例提供的业务处理方法的又一流程图；
图 4是本发明实施例提供的业务处理方法的又一流程图；
图 5a是本发明实施例提供的用户设备的结构示意图；
图 5b是本发明实施例提供的用户设备的另一结构示意图；
图 6a是本发明实施例提供的网络侧设备的结构示意图；
图 6b是本发明实施例提供的网络侧设备的另一结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清 楚、 完整地描述， 显然， 所描述的实施例仅仅是本发明一部分实施例， 而不是 全部的实施例。基于本发明中的实施例， 本领域技术人员在没有作出创造性劳 动前提下所获得的所有其他实施例， 都属于本发明保护的范围。
为了更好地对本发明实施例进行说明，以下将对多模单待用户设备的业务 的建立方法进行筒略说明， 如下：
如图 la所示， 为了在 E-UTRAN网络中向用户设备 ( UE, User Experience ) 提供 CS业务， 现有技术引入了一种通过 E-UTRAN网络连接到电路交换域的架 构， 在该架构中， MME通过 SGs接口与 CS域的 MSC相连接， 其中， 粗实线黑 框表示电路域中的网络侧设备， 而虚线框则表示分组域中的网络侧设备； 该连 接的建立可以如下：
首先， 用户设备在 E-UTRAN网络中发起 EPS移动性管理联合注册流程 ( EMM Combined procedures , EPS Mobility Management Combined procedures ), 比如， 可以发起联合的附着流程 ( Combined Attach Procedure ) 或者联合的跟踪区 /位置更新流程 ( Combined TA/LA Updating Procedure )。 具 体可以如下：
用户设备向 MME发送附着请求（ Attach Request ) 消息， 该附着请求消息 中 EPS附着类型信元（EPS Attach Type )中的附着类型指示为联合附着，如 "联 合 EPS ( combined EPS ) / 国际移动用户识别码附着（ IMSI attach, International Mobile Subscriber Identification Number attach )"； 或者， 用户设备向 MME发送 跟踪区更新请求（TAU Request ) 消息， 该跟踪区更新请求消息中 EPS更新类 型信元（EPS update type )中的更新类型指示为联合的跟踪区 /位置区更新， 如 "联合跟踪区 （combined TA, combined Tracking Area ) /位置区更新 （LA updating , Location Area updating )，，。
MME接收上述用户设备的请求消息， 比如附着请求消息或跟踪区更新请 求消息后， 根据本地配置的位置区别码（LAI, Location Area Identity )信息为 用户设备选择 MSC, 并与所选的 MSC之间建立 SGs关联。 例如， MME向 MSC 发送更新位置请求（ Update Location Request ) 消息； MSC向 MME返回更新位 置接受（Update Location Accept ) 消息。 其中， 更新位置请求消息中可以携带 上述本地配置的 LAI信息，则， MSC在接收到该更新位置请求消息后，将该 LAI 记录在用户设备的上下文中， 视为用户设备的注册位置信息。
MME与 MSC之间建立 SGs关联后， MME向用户设备返回联合注册响应消 息。 例如， MME向用户设备发送附着接受（Attach Accept )消息， 该附着接受 消息中 EPS附着结果（EPS Attach result )指示为联合附着， 比如 "combined EPS/IMSI attach"； 又例如， MME向发送跟踪区更新接受（ TAU Accept )消息， 该跟踪区更新接受消息中 EPS更新结果（EPS update result )指示为联合的跟踪 区 /位置区已更新， 如 "combined TA/LA updated"。 用户设备接收到上述联合 注册响应消息， 确认联合注册成功。 另外， 联合注册响应消息中携上述本地配 置的带 LAI信息， 用户设备保存该 LAI信息， 记录为注册成功的位置信息。 该 LAI可以是 MME本地配置或者根据用户设备在 E-UTRAN中的位置信息映射而 得用户设备接收到上述联合注册响应消息后， 确认联合注册成功。
通过联合注册流程， MME与 MSC为用户设备创建 SGs关联， 此后， 便可 以为 E-UTRAN网络中的用户设备提供 CS业务， 如下：
对于主叫 （MO, Mobile Originating )流程： 首先， 用户设备向 MME发送 扩展的服务请求消息（ EXTENDED SERVICE REQUEST )； 其次， MME指示 E-UTRAN网络将用户设备切换到 GERAN/UTRAN网络， 最终用户设备返回 GERAN/UTRAN网络执行主叫流程。
对于被叫流程， 即， MSC收到一个终呼 （MT, Mobile Terminated ) 时的 流程： 首先， MSC通过 SGs接口向 MME发送寻呼消息； 其次， MME通过
E-UTRAN对用户设备进行 CS寻呼，用户设备通过监听 E-UTRAN的寻呼信道收 到该 CS寻呼消息后， 通过类似主叫流程的方式从 E-UTRAN返回到
GERAN/UTRAN中执行被叫。
由上可知， 不论主叫流程还是被叫流程，对于多模单待用户设备都需要从 E-UTRAN返回 GERAN/UTRAN, 因此， 该架构和处理方法被称之称为电路交 换回落（ CS fallback )。
其中， 上述流程中的用户设备均指的是多模单待用户设备。 此外， 由于上 述流程中用户设备保存的是本地配置的 LAI信息， 而当用户设备从 E-UTRAN 返回 GERAN/UTRAN后从 GERAN/UTRAN广播信道中获得 LAI信息很有可能 用户设备保存的 LAI不一致，所以用户设备需要发起位置更新 ( LAU, Location Area Update ) 流程， 以保障呼叫业务的执行。
本发明实施例提供一种业务建立方法、装置和系统， 主要针对于多模多待 用户设备。 以下分别进行详细说明。 实施例一、
在本实施例中，将以用户设备的角度来进行描述。该用户设备具体可以为 多模多待用户设备。
一种业务处理方法， 包括： 用户设备向 E-UTRAN发起联合注册流程； 在 确定联合注册流程注册成功时， 进入省电模式， 以对业务进行处理。
其中，省电模式为：用户设备监听 E-UTRAN的寻呼信道（ paging channel ) 和 GERAN/UTRAN的广播信道， 但不监听 GERAN/UTRAN的寻呼信道； 当 用户设备为主叫时， 通过 GERAN/UTRAN接入 CS域完成主叫流程； 当用户 设备为被叫时， 通过 E-UTRAN的寻呼信道接收 CS域发送的被叫寻呼， 然后 通过 GERAN/UTRAN接入 CS域完成被叫流程。
参见图 lb, 具体流程可以如下：
101、 用户设备向 E-UTRAN发起联合注册流程；
联合注册流程具体可以为联合的附着流程或联合的跟踪区更新流程。具体 可以: ¾口下：
向 MME发送联合注册请求消息。 例如， 用户设备向 MME发送附着请求 ( Attach Request ) 消息， 该附着请求消息中 EPS附着类型信元（EPS Attach Type )中的附着类型指示为联合附着， 如 "combined EPS/IMSI attach" ; 或者， 用户设备向 MME发送跟踪区更新请求（ TAU Request ) 消息， 该跟踪区更新 请求消息中 EPS更新类型信元（ EPS update type )中的更新类型指示为联合的 跟踪区 /位置区更新， 如 "combined TA/L A updating"。
MME接收上述的请求消息， 附着请求消息或跟踪区更新请求消息后， 与
MSC之间建立 SGs 关联。 例如， MME 向 MSC发送更新位置请求 Update Location Request消息； MSC向 MME返回更新位置接受 Update Location Accept 消息。其中更新位置请求消息中携带位置区别码（LAI, Location Area Identity ) 信息， MSC更新位置请求消息后， 将该 LAI记录在上下文中， 视为的注册位 置信息。该 LAI可以是 MME本地配置或者根据在 E-UTRAN中的位置信息映 射而得。
MME与 MSC之间建立 SGs关联， MME向返回联合注册响应消息。例如， MME向发送附着接受 （ Attach Accept ) 消息， 该附着接受消息中 EPS附着结 果（ EPS Attach result )指示为联合附着， 比如 "combined EPS/IMSI attach"； 又例如， MME向发送跟踪区更新接受 （ TAU Accept ) 消息， 该跟踪区更新接 受消息中 EPS更新结果（ EPS update result )指示为联合的跟踪区 /位置区已更 新， 如 "combined TA/LA updated"。 用户设备接收到上述联合注册响应消息， 确认联合注册成功。 另外， 联合注册响应消息中携带 LAI信息， 保存该 LAI 信息，记录为注册成功的位置信息。该 LAI可以是 MME本地配置或者 居用 户设备在 E-UTRAN中的位置信息映射而得。
在上述联合注册流程中， 当 MME接收到用户设备发送的联合注册请求消 息后， MME需要选择 MSC为用户设备创建 SGs关联。 若 MME根据配置的 LAI 为用户设备选择 MSC,并不是根据用户设备在 GERAN/UTRAN的实际 LAI选择 MSC, 那么此时选择的 MSC并不一定是 GERAN/UTRAN中能服务用户设备的 MSC。 如果 MME选择的 MSC不是能服务用户设备的 MSC, 则用户设备需要发 起位置更新（LAU, Location Area Update )流程， 以保障呼叫业务的执行。 为 了避免用户设备发起这种冗余的 LAU流程而导致呼叫时延增加，提高呼叫业务 的效率， MME可以实时地获取用户设备在 GERAN/UTRAN的 LAI , 然后根据 该 LAI来选择 MSC,以保障所选择的 MSC为在 GERAN/UTRAN可服务用户设备 的 MSC。 即， 该业务处理方法还可以包括：
用户设备获取第一 LAI信息， 其中， 第一 LAI信息为用户设备当前所在 的 GERAN/UTRAN对应的 LAI信息， 例如， 用户设备从 GERAN/UTRAN的 广播信道中获得 LAI信息；
则此时， 步骤 "用户设备向 MME发送联合注册请求消息" 具体可以为： 用户设备发送携带第一 LAI信息的联合注册请求消息给 MME, 以便 MME根 据第一 LAI信息选择 MSC。
具体实施时， 可以在联合注册请求消息， 比如联合的附着请求消息或联合 的跟踪区更新请求消息中设置一个新的字段，用于携带第一 LAI信息，当 MME 接收到该联合注册请求消息后， 确定该新的字段中是否携带有信息， 若有， 则 表示该联合注册请求消息中携带了第一 LAI信息， 于是根据第一 LAI信息选 择 MSC; 若没有， 则表示联合注册请求消息中没有携带了第一 LAI信息， 于 是按照现有技术选择 MSC, 比如根据预置的 MSC标识选择 MSC。 上述第一 LAI信息为用户设备从 GERAN/UTRAN的广播信道中获得 LAI信息。
本发明不限定联合注册请求消息一定携带所述第一 LAI信息。 若联合注 册请求消息没有携带所述第一 LAI信息， 则 MME还是根据现有机制选择 MSC, 只是此时可能无法达到上述携带第一 LAI的优化作用， 但不影响后续 关于本发明解决用户设备省电的实施。
102、 用户设备在确定联合注册流程成功时， 进入省电模式， 以对业务进 行处理。
其中， 省电模式指的是： 用户设备监听 E-UTRAN 的寻呼信道和 GERAN/UTRAN的广播信道，但不监听 GERAN/UTRAN的寻呼信道； 当用户 设备为主叫时， 通过 GERAN/UTRAN接入 CS域完成主叫流程； 当用户设备 为被叫时， 通过 E-UTRAN的寻呼信道接收 CS域发送的被叫寻呼， 然后通过 GERAN/UTRAN接入 CS域完成被叫流程。 由于用户设备不监听 CS域的寻呼 信道，所以可以大大降低在 CS域的能量消耗，达到节省用户设备电量的目的。
例如， 当用户设备接收到 MME发送上述的联合注册响应消息， 比如联合 的附着接受消息或联合的跟踪区更新接受消息时， 就可以进入省电模式， 以对 业务进行处理。
联合注册过程中， 若当前的 MME 不支持上述根据用户设备提供的第一 LAI信息选择 MSC的处理（MME没有升级， 并不识别注册请求消息中所携 带的第一 LAI信息）， 仍然根据 MME本地配置 LAI来选择 MSC, 那么 MME 所选的 MSC 艮可能不是用户设备当前 GERAN/UTRAN所在区域的服务 MSC。 如果 MME所选择的 MSC不是用户设备所在区域的服务 MSC,则用户设备需 要发起 LAU流程， 以保障呼叫业务的执行。 因此， 为了避免用户设备发起这 种冗余的 LAU流程而导致呼叫时延增加， 提高呼叫业务的效率， 基于联合注 册流程成功， 进一步地， 用户设备还可以先确认当前注册的 MSC是用户设备 的第一 LAI信息选择 MSC ),然后才进入本发明实施例所述的省电模式。例如， 可以在联合注册响应消息中也携带一个 LAI信息， 其中， 该 LAI信息为 MME 所选择的 MSC所对应的 LAI信息 （即 MME是根据该 LAI信息来选择 MSC 的）， 为了描述方便， 在本发明实施例中称为第二 LAI信息。 用户设备可以通 过比较该第二 LAI信息和第一 LAI信息来进一步验证 MME所选择的 MSC是 否为用户设备当前所在区域的服务 MSC, 在确定是时， 才进入省电模式， 否 贝' J , 则不进入省电模式， 而是按照现有技术的流程进行操作。 具体可以如下： 确定联合注册响应消息中携带的第二 LAI信息与用户设备发送给 MME 的第一 LAI信息是否一致， 若一致， 则用户设备进入省电模式； 否则， 若不 一致， 则用户设备可以选择不进入省电模式； 或者可以选择进入省电模式， 但 是此时可能无法达到上述第二 LAI信息和第一 LAI信息一致时的优化作用， 例如， 每次业务之前需要执行位置更新流程。
也就是说， 在联合注册接受消息中携带第二 LAI信息时， 步骤 "进入省 电模式" 之前， 还可以包括：
确定联合注册接受消息中携带的第二 LAI信息与用户设备发送给 MME 的第一 LAI信息一致。
由上可知， 本实施例采用为多模多待的用户设备设置一种省电模式，在该 省电模式下， 用户设备监听 E-UTRAN的寻呼信道和 GERAN/UTRAN的广播 信道， 但不监听 GERAN/UTRAN的寻呼信道， 从而可以节省用户设备在 CS 域中的能量消耗， 达到节省用户设备的耗电量的目的； 与此同时， 为了保证不 影响多模多待用户设备的用户体验， 在该省电模式下， 主叫时， 可以通过
GERAN/UTRAN接入 CS域完成主叫流程，而在被叫时，则可以利用 E-UTRAN 的寻呼信道来接收 CS域发送的被叫寻呼，然后通过 GERAN/UTRAN接入 CS 域完成被叫流程。 也就是说， 采用该方案， 可以在不影响多模多待用户设备的 用户体验的前提下， 节省用户设备的耗电量。 实施例二、
本实施例将从网络设备的角度进行描述，该网络设备具体可以为 MME或 其他与 MME具有类似功能的网络实体。
一种业务处理方法， 应用于演进的通用移动通信系统陆地无线接入网 E-UTRAN网络中， 包括： 接收用户设备发送的联合注册请求消息， 其中， 联 合注册请求消息中携带第一 LAI信息， 该第一 LAI信息为用户设备当前所在 的 GERAN/UTRAN对应的 LAI信息；根据第一 LAI信息为用户设备选择移动 交换中心 MSC; 发送联合注册响应消息给用户设备。
其中， 用户设备在接收到联合注册响应消息后， 可以根据该联合注册响应 消息确定是否进入省电模式；
其中，省电模式为：用户设备监听 E-UTRAN的寻呼信道和 GERAN/UTRAN 的广播信道， 但不监听 GERAN/UTRAN的寻呼信道； 在主叫时， 通过 GERAN/UTRAN接入 CS域完成主叫流程； 在被叫时， 利用 E-UTRAN的寻呼信 道接收 CS域发送的被叫寻呼， 然后通过 GERAN/UTRAN接入 CS域完成被叫流 程。
以该网络设备具体为 MME为例， 参见图 2 , 具体流程可以如下：
201、 MME接收用户设备发送的联合注册请求消息； 其中， 联合注册请 求消息具体为联合的附着请求消息或联合的跟踪区更新请求消息；
为了保证 MME为用户设备选择的 MSC为用户设备当前 GERAN/UTRAN 所在位置的服务 MSC, 可以在联合注册请求消息中携带第一 LAI信息， 以便 MME根据该第一 LAI信息来选择 MSC。 即具体可以如下：
联合注册请求消息中携带第一 LAI信息， 其中， 第一 LAI信息为用户设 备当前 GERAN/UTRAN所在位置对应的 LAI信息；
则此时， 发送联合注册响应消息给用户设备（即步骤 202 )之前， 该方法 还可以包括：
根据第一 LAI信息为用户设备选择移动交换中心 MSC, 以便用户设备利 用选择的 MSC对业务进行处理。
202、 根据第一 LAI信息为用户设备选择 MSC;
203、 MME发送联合注册响应消息给用户设备， 以触发用户设备进入省 电模式。
其中， 省电模式指的是： 用户设备监听 E-UTRAN的寻呼信道（paging channel )和 GERAN/UTRAN的广播信道， 但不监听 GERAN/UTRAN的寻呼信 道； 在主叫时， 通过 GERAN/UTRAN接入 CS域完成主叫流程； 在被叫时， 利 用 E-UTRAN的寻呼信道接收 CS域发送的被叫寻呼， 然后通过 GERAN/UTRAN 接入 CS域完成被叫流程。 由于用户设备不监听 CS域的寻呼信道， 所以可以大 大降低在 CS域的能量消耗， 达到节省用户设备电量的目的。
例如， 具体可以如下：
MME为用户设备选择 MSC后， 比如根据第一 LAI信息为用户设备选择 了 MSC之后， 发送位置更新请求消息 （Location Update Request )给选择的 MSC, MSC返回位置更新接受消息（ Location Update Accept )给 MME, 然后 MME向用户设备发送联合注册响应消息， 如联合的附着接受消息或联合的位 置更新接受消息， 以触发用户设备进入省电模式。 进一步地， 其中， 联合注册 响应消息中可以携带第二 LAI, 这样的话， 用户设备在接收到该联合注册响应 消息之后， 就可以通过比较该第二 LAI信息和第一 LAI信息来进一步验证 MME所选择的 MSC是否为用户设备当前 GERAN/UTRAN所在区域的服务 MSC, 在确定是时， 才进入省电模式， 否则， 则不进入省电模式， 而是按照现 有技术的流程进行操作。 即， 当联合注册响应消息中携带第二 LAI信息时， 步骤 "触发用户设备进入省电模式" 具体可以如下：
用户设备确定联合注册响应消息中携带的第二 LAI信息与用户设备发送 给 MME的第一 LAI信息是否一致，若一致，则用户设备进入省电模式；否贝' J , 若不一致， 则用户设备可以不进入省电模式。
当然， 当用户设备确定联合注册响应消息中携带的第二 LAI信息与用户 设备发送给 MME的第一 LAI信息不一致时，也可以选择进入省电模式，但是 此时可能无法达到上述第二 LAI信息和第一 LAI信息一致时的优化作用， 例 如， 每次业务之前需要执行位置更新流程。
由上可知， 本实施例采用为多模多待的用户设备设置一种省电模式， 当用 户设备在 E-UTRAN中发起联合注册流程且联合注册成功时，就可以进入该省 电模式， 在该省电模式下， 用户设备监听 E-UTRAN 的寻呼信道（paging channel )和 GERAN/UTRAN的广播信道， 但不监听 GERAN/UTRAN的寻呼 信道， 从而可以大大节省用户设备在 CS域中的能量消耗， 达到省电的目的。 与此同时， 在该省电模式下， 主叫时， 可以通过 GERAN/UTRAN接入 CS域 完成主叫流程， 而在被叫时， 则可以利用 E-UTRAN的寻呼信道接收 CS域发 送的被叫寻呼， 然后通过 GERAN/UTRAN接入 CS域完成被叫流程， 从而保 证了多模多待用户设备的用户体验。 也就是说， 采用该方案， 可以在不影响多 模多待用户设备的用户体验的前提下， 节省用户设备的耗电量。 根据实施例一和二所描述的方法， 以下将在实施例三、 实施例四和实施五 中举例作进一步详细说明。 实施例三、
在本实施例中， 将以网络设备具体为 MME为例进行说明。
用户设备具体可以为多模多待用户设备， 以下均筒称为用户设备。用户设 备同时工作在 GERAN/UTRAN网络环境中和 E-UTRAN网络环境中。 具体可以 ：¾口下：
( 1 ) GERAN/UTRAN网络环境。
用户设备工作在 GERAN/UTRAN网络环境中， 监听 GERAN/UTRAN广播 信道， 而不监听寻呼信道。 不监听寻呼信道将大大节省用户设备在
GERAN/UTRAN网络环境中的能量消耗， 这样可以得到省电的目的。
( 2 ) E-UTRAN网络环境。
用户设备工作在 GERAN/UTRAN网络环境中的同时， 也工作在 E-UTRAN 环境中， 用户设备在 E-UTRAN网络中执行联合注册流程， 比如执行联合的附 着流程或联合的更新流程。
联合注册流程中， 用户设备根据在 GERAN/UTRAN中获得的用户设备当 前的 LAI信息（通过监听 GERAN/UTRAN广播信道获得 LAI信息）， 即第一 LAI 信息，通过联合注册请求消息， 比如通过联合的附着请求或联合的跟踪区更新 请求将该第一 LAI信息通知给 MME,然后， MME根据用户设备提供的第一 LAI 信息选择 MSC。
为了描述方便， 在本实施例中， 将以联合的附着流程为例进行说明。 如图
3所示， 在上述场景下， 本实施例提供的业务处理方法的流程具体可以如下： 301、 用户设备通过监听 GERAN/UTRAN的广播信道获得第一 LAI信息。 其中，该第一 LAI信息是用户设备当前工作的 GERAN/UTRAN环境中对应 的 LAI信息。
302、用户设备向 MME发送联合的附着请求消息（Attach Request ) ,其中， 该联合的附着请求消息中携带第一 LAI信息， 此外， 还可以携带附着类型 ( Attach Type ) , 其中， 该附着类型可以设置为联合附着类型 （combined EPS/IMSI attach ) 。
303、 MME接收到该联合的附着请求消息后，根据第一 LAI信息选择 MSC。 例如， MME可以根据第一 LAI信息进行域名 ( DNS , Domain Name System ) 解析， 以获得 MSC地址， 比如， 获得 MSC号码（ MSC Number ) 。 若解析获得 了多个 MSC地址，那么， MME还可以应用国际移动用户识别码哈希函数（ IMSI hash function, International Mobile Subscriber Identification Number hash function ) 来选择一个合适的 MSC。 MME根据该第一 LAI信息选择的 MSC是可以服务处于该第一 LAI信息所 对应 GERAN/UTRAN网络工作环境的用户设备。
304、 MME向选择的 MSC发送位置更新请求消息 （ Location Update Request ) , 其中， 该位置更新请求消息中可以携带第一 LAI信息。
305、 MSC向 MME返回位置更新接受消息（ Location Update Accept ) , 其 中， 该位置更新接受消息中携带 MSC为用户设备分配的临时识别码（TMSI, Temporary Mobile Subscriber Identity)信息， 据此， MME与 MSC为用户设备创 建了 SGs关联。
306、 MME向用户设备发送联合的附着接受消息（Attach Accept ) , 其中， 该联合的附着接受消息中携带 TMSI信息和第二 LAI信息， 其中， TMSI信息为 步骤 305中 MSC为用户设备分配的 TMSI信息， 而第二 LAI信息则是步骤 303中 用于选择 MSC的第一 LAI信息， 或者， 如果在步骤 303中并不是根据第一 LAI 信息来选择 MSC的， 则此时第二 LAI信息是所选择的 MSC所对应的 LAI信息， 例如， MME本地配置的 LAI。
307、 用户设备接收到该联合的附着接受消息后， 保存 TMSI信息， 以及将 第二 LAI信息保存下来， 此时用户设备可以进入省电模式。 进一步地， 用户设 备判断第一 LAI信息和第二 LAI信息是否一致， 若一致， 则进入省电模式， 若 不一致， 则不进入省电模式， 而是按照现有的流程进行后续的操作。
在省电模式下， 用户设备在 GERAN/UTRAN网络环境中， 并不监听寻呼 信道， 而 ½听广播信道。 其中， 省电模式中的呼叫业务流程具体可以如下： ( 1 )主叫业务；
主叫的时候， 用户设备直接在 GERAN/UTRAN中完成主叫流程。 其中， 在 GERAN/UTRAN中完成主叫流程具体可参见现有技术。
对于现有的双模单待用户设备来说， 如图 la所述， 在主叫时， 用户设备需 要向 MME发送延伸服务请求消息（EXTENDED SERVICE REQUEST ) , 然后 再由 MME指示 E-UTRAN网络将用户设备切换到 GERAN/UTRAN ,使得用户设 备可以返回 GERAN/UTRAN执行主叫流程。 而在本实施例中， 由于多模多待 用户设备同时工作在 E-UTRAN和 GERAN/UTRAN , 所以用户设备（即多模多 待用户设备 )无需从 E-UTRAN切换到 GERAN/UTRAN , 而是直接在 GERAN/UTRAN中执行主叫流程， 所以相对于现有的双模单待用户设备而言， 可以大大节省信令流程， 提高呼叫业务的效率。
需说明的是， 可选的， 在步骤 307中， 在确定第一 LAI信息和第二 LAI信息 不一致时， 也可以选择进入省电模式， 但是此时可能无法达到上述第二 LAI信 息和第一 LAI信息一致时的优化作用， 例如， 每次业务之前需要执行位置更新 流程。
还需说明的是， 可选的， 在步骤 307中， 也可以不对第一 LAI信息和第二 LAI信息是否一致进行判断， 而是直接进入省电模式， 但是这样的话， 在后续 处理该主叫业务时， 如果用户设备当前从 GERAN/UTRAN广播信息中获得的 LAI信息 （即第一 LAI信息）与保存的 LAI信息（第二 LAI信息） 不一致， 那么 用户设备需要在 GERAN/UTRAN网络（即 CS域） 中发起 LAU流程， 然后再执 行主叫业务流程。 也就是说， 步骤 307中对这些 LAI信息的处理（即判断第一 LAI信息和第二 LAI信息是否一致），可以确保用户设备当前从 GERAN/UTRAN 广播信息中获得 LAI信息与保存的 LAI信息的一致性， 可以避免冗余的 LAU流 程， 保障了主叫业务效率。
( 2 )被叫业务；
被叫的时候， 基于 MME与 MSC之间的 SGs关联， MSC通过 MME向用户设 备转发被叫寻呼， 然后用户设备再通过 GERAN/UTRAN完成被叫流程。
对于现有的双模单待用户设备来说，在被叫时， MSC会收到一个终呼（ MT, Mobile Terminated ) , 此时， MSC会通过 SGs接口向 MME发送寻呼消息， 然后， MME通过 E-UTRAN对用户设备进行 CS寻呼， 用户设备收到该 CS寻呼消息后， 通过类似主叫流程的方式从 E-UTRAN返回到 GERAN/UTRAN中执行被叫流 程。 而在本实施例中， 由于多模多待用户设备已经工作在 GERAN/UTRAN中， 所以用户设备（即多模多待用户设备）无需从 E-UTRAN切换到
GERAN/UTRAN, 而是直接在在 GERAN/UTRAN中执行被叫流程。
需说明的是， 可选的， 在步骤 307中， 也可以不对第一 LAI信息和第二 LAI 信息是否一致进行判断， 而是直接进入省电模式， 但是这样的话， 在后续处理 该被叫业务时， 如果用户设备当前从 GERAN/UTRAN广播信息中获得的 LAI 信息（即第一 LAI信息）与保存的 LAI信息（第二 LAI信息）不一致， 那么用户 设备需要在 GERAN/UTRAN网络中发起 LAU流程， 然后再执行被叫业务流程。 也就是说， 步骤 307中对这些 LAI信息的处理（即判断第一 LAI信息和第二 LAI 信息是否一致） ， 可以确保用户设备当前从 GERAN/UTRAN广播信息中获得 LAI信息与保存的 LAI信息的一致性， 可以避免冗余的 LAU流程， 保障了主叫 业务效率。
由上可知， 本实施例采用为多模多待的用户设备设置一种省电模式，在该 省电模式下， 用户设备监听 E-UTRAN的寻呼信道和 GERAN/UTRAN的广播 信道， 但不监听 GERAN/UTRAN的寻呼信道， 从而可以节省用户设备在 CS 域中的能量消耗， 达到节省用户设备的耗电量的目的； 与此同时， 为了保证不 影响多模多待用户设备的用户体验， 在该省电模式下， 主叫时， 可以通过 GERAN/UTRAN接入 CS域完成主叫流程，而在被叫时，则可以利用 E-UTRAN 的寻呼信道来接收 CS域发送的被叫寻呼，然后通过 GERAN/UTRAN接入 CS 域完成被叫流程。 也就是说， 采用该方案， 可以在不影响多模多待用户设备的 用户体验的前提下， 节省用户设备的耗电量。
而且， 由于在本发明所述的联合附着流程中， MME是通过用户设备提供 的第一 LAI信息来选择 MSC的， 所以可以避免用户设备发起冗余的 LAU流程， 保障了用户设备工作在 GERAN/UTRAN环境中的业务的高效性。 实施例四、
在实施三中，主要以联合的注册请求消息具体为联合的附着消息为例进行 说明， 除此之外， 该联合的注册请求消息也可以为联合的跟踪区更新消息， 因 此，在本实施例中，将以联合的注册请求消息具体为联合的跟踪区更新消息为 例进行说明。 如下：
用户设备完成联合的附着流程并进入省电模式， 后续当用户设备获知
GERAN/UTRAN网络中的 LAI信息改变， 即监听 GERAN/UTRAN广播信道，从 GERAN/UTRAN的广播信息中获得的第一 LAI信息与当前保存的 LAI信息 （第 二 LAI信息）不一致，则用户设备在 E-UTRAN网络发起联合的跟踪区更新流程： 通过联合的位置更新消息将最新的第一 LAI信息通知 MME, 由 MME向 MSC发 起位置更新流程。
如图 4所示， 在上述场景下， 本实施例提供的业务处理方法的流程具体可 以: ¾口下：
401、 用户设备获知 GERAN/UTRAN网络中的 LAI信息改变， 也就是监听 GERAN/UTRAN广播信道， 从 GERAN/UTRAN的广播信息中获得的第一 LAI 信息与当前保存的 LAI信息（第二 LAI信息）不一致， 则用户设备在 E-UTRAN 网络发起联合的跟踪区更新流程， 即执行步骤 402.
402、 用户设备向 MME发送联合的跟踪区更新请求消息（ TAU Request )。 该联合的跟踪区更新请求消息中可以携带更新类型 （Update Type ) , 设置为 联合更新类型（ combined Tracking Area ) , 此外， 该联合的跟踪区更新请求消 息中携带第一 LAI信息。
403、 ΜΜΕ接收到该跟踪区更新请求消息后， 根据跟踪区更新请求消息中 携带的第一 LAI信息选择 MSC。
例如， 根据第一 LAI信息进行 DNS解析， 以获得 MSC地址， 比如， MSC号 码。 若解析获得多个 MSC地址， 那么 ΜΜΕ还可以应用 IMSI哈希函数来选择一 个合适的 MSC。
MME根据该第一 LAI信息选择的 MSC是可以服务处于该第一 LAI信息所 对应 GERAN/UTRAN网络工作环境的用户设备。
404、 MME向选择的 MSC发送位置更新请求消息， 该位置更新请求消息中 携带第一 LAI信息。
405、 MSC接收到位置更新请求消息后， 保存第一 LAI信息， 并记录用户 设备当前工作在第一 LAI信息所对应的 GERAN/UTRAN网络工作环境中， MSC 为该用户设备提供服务。 MSC向 MME返回位置更新接受消息， 该位置更新接 受消息中携带 MSC为用户设备分配的 TMSI信息，据此， MME与 MSC为用户设 备创建了 SGs关联。
406、 MME向用户设备发送联合的跟踪区更新接受消息 （TAU Accept ) , 其中， 该联合的跟踪区更新接受消息中携带 TMSI信息和第二 LAI信息。 其中，
TMSI信息为步骤 405中 MSC为用户设备分配的 TMSI信息，而第二 LAI信息则是 步骤 403中用于选择 MSC的第一 LAI信息。
407、 用户设备接收到该联合的跟踪区更新接受消息后， 保存 TMSI信息， 以及将第二 LAI信息保存下来。用户设备判断第一 LAI信息和第二 LAI信息是否 一致， 若一致， 则进入 (或者说维持)省电模式， 若不一致， 则不进入（或者说 退出）省电模式， 而是按照现有的流程进行后续的操作。
在省电模式下， 用户设备在 GERAN/UTRAN网络环境中， 并不监听寻呼 信道， 而 ½听广播信道。 其中， 省电模式中的呼叫业务流程具体可以如下： ( 1 )主叫业务；
主叫的时候， 用户设备直接在 GERAN/UTRAN中完成主叫流程。 其中， 在 GERAN/UTRAN中完成主叫流程具体可参见现有技术。
对于现有的双模单待用户设备来说， 如图 la所述， 在主叫时， 用户设备需 要向 MME发送延伸服务请求消息， 然后再由 MME指示 E-UTRAN将用户设备 切换到 GERAN/UTRAN, 使得用户设备可以返回 GERAN/UTRAN执行主叫流 程。 而在本实施例中， 由于多模多待用户设备同时工作在 E-UTRAN和
GERAN/UTRAN, 所以用户设备（即多模多待用户设备）无需从 E-UTRAN切 换到 GERAN/UTRAN , 而是直接在 GERAN/UTRAN中执行主叫流程， 所以相 对于现有的双模单待用户设备而言， 可以大大节省信令流程，提高呼叫业务的 效率。
需说明的是， 可选的， 在步骤 307中， 在确定第一 LAI信息和第二 LAI信息 不一致时， 也可以选择进入省电模式， 但是此时可能无法达到上述第二 LAI信 息和第一 LAI信息一致时的优化作用， 例如， 每次业务之前需要执行位置更新 流程。
还需说明的是， 可选的， 在步骤 407中， 也可以不对第一 LAI信息和第二
LAI信息是否一致进行判断， 而是直接进入省电模式， 但是这样的话， 在后续 处理该主叫业务时， 如果用户设备当前从 GERAN/UTRAN广播信息中获得的 LAI信息 （即第一 LAI信息）与保存的 LAI信息（即第二 LAI信息） 不一致， 那 么用户设备需要在 GERAN/UTRAN (即 CS域） 中发起 LAU流程， 然后再执行 主叫业务流程。 也就是说， 步骤 407中对这些 LAI信息的处理（即判断第一 LAI 信息和第二 LAI信息是否一致）， 可以确保用户设备当前从 GERAN/UTRAN广 播信息中获得 LAI信息与保存的 LAI信息的一致性，可以避免冗余的 LAU流程， 保障了主叫业务效率。
( 2 )被叫业务； 被叫的时候， 基于 MME与 MSC之间的 SGs关联， MSC通过 MME向用户设 备转发被叫寻呼， 然后用户设备再通过 GERAN/UTRAN完成被叫流程。
对于现有的双模单待用户设备来说，在被叫时， MSC会收到一个终呼（ MT, Mobile Terminated ) , 此时， MSC会通过 SGs接口向 MME发送寻呼消息， 然后， MME通过 E-UTRAN网络对用户设备进行 CS寻呼， 用户设备收到该 CS寻呼消 息后， 通过类似主叫流程的方式从 E-UTRAN返回到 GERAN/UTRAN中执行被 叫流程。而在本实施例中， 由于多模多待用户设备已经工作在 GERAN/UTRAN 中， 所以用户设备（即多模多待用户设备）无需从 E-UTRAN切换到
GERAN/UTRAN , 而是直接在在 GERAN/UTRAN中执行被叫流程。
需说明的是， 可选的， 在步骤 407中， 也可以不对第一 LAI信息和第二 LAI 信息是否一致进行判断， 而是直接进入省电模式， 但是这样的话， 在后续处理 该被叫业务时， 如果用户设备当前从 GERAN/UTRAN广播信息中获得的 LAI 信息 （即第一 LAI信息） 与保存的 LAI信息不一致， 那么用户设备需要在 GERAN/UTRAN网络中发起 LAU流程， 然后再执行被叫业务流程。 也就是说， 步骤 407中对这些 LAI信息的处理（即判断第一 LAI信息和第二 LAI信息是否一 致）， 可以确保用户设备当前从 GERAN/UTRAN广播信息中获得 LAI信息与保 存的 LAI信息的一致性， 可以避免冗余的 LAU流程， 保障了主叫业务效率。
由上可知， 本实施例采用为多模多待的用户设备设置一种省电模式， 用户 设备首先在 E-UTRAN完成联合注册流程， 然后， 监听 E-UTRAN的寻呼信道 和 GERAN/UTRAN的广播信道， 但不监听 GERAN/UTRAN的寻呼信道， 从 而节省用户设备在 CS域中的能量消耗， 达到省电的目的。 在该省电模式下， 主叫时， 通过 GERAN/UTRAN 接入 CS 域完成主叫流程； 被叫时， 利用 E-UTRAN的寻呼信道接收 CS域发送的被叫寻呼， 然后通过 GERAN/UTRAN 接入 CS域完成被叫流程， 保证多模多待用户设备的用户体验。 采用该方案， 可以在不影响多模多待用户设备的用户体验的前提下， 节省用户设备的耗电 量。
而且， 由于在本发明所述的联合附着流程中， MME是通过用户设备提供 的第一 LAI信息来选择 MSC的， 所以可以避免用户设备发起冗余的 LAU流程， 保障了用户设备工作在 GERAN/UTRAN环境中的业务的高效性。 实施例五、
为了更好地实施以上方法， 本发明实施例还相应地提供一种用户设备， 具 体为多模多待用户设备， 如图 5a所示， 该用户设备包括发起单元 501和处理单 元 502;
发起单元 501 , 用于向 E-UTRAN发起联合注册流程；
其中， 联合注册流程具体可以为联合的附着流程或联合的跟踪区更新流 程。
处理单元 502, 用于在确定联合注册流程注册成功时， 监听 E-UTRAN的 寻呼信道， 不监听 GERAN/ UTRAN 的寻呼信道； 在主叫时， 通过 GERAN/UTRAN接入 CS域完成主叫流程； 在被叫时， 利用 E-UTRAN的寻呼 信道接收 CS域发送的被叫寻呼，然后通过 GERAN/UTRAN接入 CS域完成被 叫流程。
其中， 为了描述方便， 在本发明实施例中， 将 "用户设备监听 E-UTRAN 的寻呼信道， 不监听 GERAN/ UTRAN 的寻呼信道； 在主叫时， 通过 GERAN/UTRAN接入 CS域完成主叫流程； 在被叫时， 利用 E-UTRAN的寻呼 信道接收 CS域发送的被叫寻呼，然后通过 GERAN/UTRAN接入 CS域完成被 叫流程" 的这种操作方式称为省电模式。
其中， 发起单元 501 , 具体用于发送联合注册请求消息给 MME;
其中，联合注册请求消息具体可以为联合的附着请求消息或联合的跟踪区 更新请求消息；
则处理单元 502, 具体用于在接收 MME发送的联合注册响应消息时， 进 入省电模式， 以对业务进行处理； 即：
处理单元 502在接收 MME发送的联合注册响应消息时， 监听 E-UTRAN 的寻呼信道， 不监听全球移动通讯系统 /增强型数据速率全球移动通讯系统无 线接入网 GERAN/通用移动通信系统陆地无线接入网 UTRAN的寻呼信道； 在主叫时， 通过 GERAN/UTRAN接入 CS域完成主叫流程； 在被叫时， 利用 E-UTRAN的寻呼信道接收 CS域发送的被叫寻呼， 然后通过 GERAN/UTRAN 接入 CS域完成被叫流程。
其中，联合注册响应消息具体可以为联合的附着接受消息或联合的跟踪区 更新接受消息。
在联合注册流程中， 当 MME接收到用户设备发送的联合注册请求消息 后， MME可以根据预置的 MSC标识为用户设备选择 MSC。 但是， 由于所选 择的 MSC是预置的， 而用户设备所在的位置是变化的， 所以此时选择的 MSC 并不一定是 GERAN/UTRAN中能服务用户设备的 MSC。 如果 MME选择的 MSC不是 GERAN/UTRAN中能服务用户设备的 MSC, 则用户设备需要发起 LAU流程， 以保障呼叫业务的执行。 为了避免用户设备发起这种冗余的 LAU 流程， 提高呼叫业务的效率， 除了上述所描述的 MME可以 ^据预置的 MSC 标识来选择 MSC之外， MME还可以实时地获取用户设备的位置信息， 比如 LAI信息， 然后根据该位置信息来选择 MSC, 以保障所选择的 MSC为能服务 于用户设备当前所在 GERAN/UTRAN的 MSC。 即如图 5b所示， 该用户设备 还可以包括获取单元 503;
获取单元 503, 用于获取第一 LAI信息， 其中， 第一 LAI信息为用户设备 当前所在的 GERAN/UTRAN对应的 LAI信息；
则发起单元 501 ,具体用于发送携带第一 LAI信息的联合注册请求消息给
MME。
这样， MME在接收到该携带第一 LAI信息的联合注册请求消息后， 就可 以根据第一 LAI信息选择 MSC。
具体实施时， 可以在联合注册请求消息， 比如联合的附着请求消息或联合 的跟踪区更新请求消息中设置一个新的字段，用于携带第一 LAI信息，当 MME 接收到该联合注册请求消息后， 确定该新的字段中是否携带有信息， 若有， 则 表示该联合注册请求消息中携带了第一 LAI信息， 于是根据第一 LAI信息选 择 MSC; 若没有， 则表示联合注册请求消息中没有携带了第一 LAI信息， 于 是按照现有技术选择 MSC, 比如根据预置的 MSC标识选择 MSC。
如图 5b所示， 除了获取单元 503之外， 该用户设备还可以包括保存单元
504;
保存单元 504, 用于在用户设备上保存第二位置区别码 LAI信息， 其中， 第二 LAI信息为用户设备进入省电模式之后所保存的 LAI信息；
获取单元 503, 用于获取第一 LAI信息， 其中， 第一 LAI信息为用户设备 当前所在的 CS域网络对应的 LAI信息；
则发起单元 501 ,具体用于用户设备进入省电模式之后，通过比较第一 LAI 信息和第二 LAI信息是否一致来确定用户设备的位置是否发生了改变， 如果 发生改变， 则用户设备发起联合的位置更新流程。
当用户设备接收到 MME发送的联合注册响应消息，比如联合的附着接收 消息或联合的位置更新消息时， 就可以进入省电模式， 以对业务进行处理。
为了避免 MME为用户设备选择的 MSC不是用户设备当前所在区域的服 务 MSC, 还可以在联合注册响应消息中携带第二 LAI信息。 用户设备可以通 过比较该第二 LAI信息和第一 LAI信息来进一步验证 MME所选择的 MSC是 否为可以服务于用户设备当前所在 GERAN/UTRAN的 MSC,在确定是时， 才 进入省电模式，否则，则不进入省电模式，而是按照现有技术的流程进行操作。 即：
处理单元 502, 具体用于在接收 MME发送的携带第二 LAI信息的联合注 册响应消息， 且确定第二 LAI信息与第一 LAI信息一致时， 进入省电模式。 即：
处理单元 502在接收 MME发送的携带第二 LAI信息的联合注册响应消 息， 且确定第二 LAI信息与第一 LAI信息一致时， 监听 E-UTRAN的寻呼信 道， 不监听全球移动通讯系统 /增强型数据速率全球移动通讯系统无线接入网 GERAN/通用移动通信系统陆地无线接入网 UTRAN的寻呼信道； 在主叫时， 通过 GERAN/UTRAN接入 CS域完成主叫流程； 在被叫时， 利用 E-UTRAN 的寻呼信道接收 CS域发送的被叫寻呼， 然后通过 GERAN/UTRAN接入 CS 域完成被叫流程。
具体实现时， 以上各个单元可以作为独立的实体来实现，也可以进行任意 组合， 作为同一或若干个实体来实现， 或者， 还可以将上述各个单元作为一个 模块， 集成在现有的用户设备上， 等等。
以上各个单元的具体实施可参见前面的方法实施例， 在此不再赘述。
由上可知，本实施例所提供的用户设备的处理单元 502可以在 MME的触 发下，进入省电模式，在该省电模式下，用户设备监听 E-UTRAN的寻呼信道， 而不监听 GERAN/ UTRAN的寻呼信道， 从而可以节省用户设备在 CS域中的 能量消耗， 达到节省用户设备的耗电量的目的； 与此同时， 为了避免由于不监 听 GERAN/ UTRAN的寻呼信道而影响 CS域的业务， 在该省电模式下， 该用 户设备的发起单元 501可以发起联合注册流程以建立 E-UTRAN和 GERAN/ UTRAN之间的关联关系，在主叫时，可以通过 GERAN/UTRAN接入 CS域完 成主叫流程， 而在被叫时， 则可以利用 E-UTRAN的寻呼信道来接收 CS域发 送的被叫寻呼， 然后再通过 GERAN/UTRAN接入 CS域完成被叫流程， 从而 保证用户设备可以及时在 CS域中完成呼叫业务， 保证多模多待用户设备的用 户体验。 也就是说， 采用该方案， 可以在不影响多模多待用户设备的用户体验 的前提下， 节省用户设备的耗电量。
而且， 由于在本发明所述的联合附着流程中， MME是通过用户设备提供 的第一 LAI信息来选择 MSC的， 所以可以避免用户设备发起冗余的 LAU流 程， 保障了用户设备工作在 GERAN/UTRAN环境中的业务的高效性。 实施例七、
相应的， 本发明实施例还提供一种网络侧设备， 如图 6a所示， 该网络侧 设备包括接收单元 601和发送单元 602;
接收单元 601 , 用于接收用户设备发送的联合注册请求消息；
其中，联合注册请求消息具体可以为联合的附着请求消息或联合的跟踪区 更新请求消息；
发送单元 602, 用于发送联合注册响应消息给用户设备。
该注册响应消息可以触发用户设备进入省电模式； 其中， 省电模式为： 用 户设备监听 E-UTRAN的寻呼信道， 不监听 GERAN/ UTRAN的寻呼信道； 在 主叫时， 通过 GERAN/UTRAN接入 CS 域完成主叫流程； 在被叫时， 利用 E-UTRAN的寻呼信道接收 CS域发送的被叫寻呼， 然后通过 GERAN/UTRAN 接入 CS域完成被叫流程。
其中，联合注册响应消息具体可以为联合的附着接受消息或联合的跟踪区 更新接受消息。
为了保证 MME为用户设备选择的 MSC为可以服务于用户设备当前所在 GERAN/UTRAN的 MSC, 避免用户设备发起冗余的 LAU流程， 提高呼叫业 务的效率，可以在联合注册请求消息中携带第一 LAI信息， 以便 MME根据该 第一 LAI信息来选择 MSC。 即如图 6b所示，该网络侧设备还可以包括选择单 元 603;
接收单元 601 ,具体用于接收用户设备发送的携带了第一 LAI信息的联合 注册请求消息；
选择单元 603, 用于根据第一 LAI信息为用户设备选择 MSC, 以便用户 设备利用选择的 MSC对业务进行处理。
当用户设备接收到网络侧设备发送的联合注册响应消息后，可以直接进入 省电模式。
此外， 为了避免用户设备发起冗余的 LAU流程， 可选的， 联合注册响应消 息中还可以携带第二 LAI, 这样的话， 用户设备在接收到该联合注册响应消息 之后， 就可以通过比较该第二 LAI信息和第一 LAI信息来进一步验证 MME所选 择的 MSC是否为用户设备当前所在区域的服务 MSC, 在确定是时， 才进入省 电模式， 否则， 则不进入省电模式， 而是按照现有技术的流程进行操作。 即该 网络侧设备还可以包括获取单元；
获取单元， 用于当选择单元 603无法根据第一 LAI信息选择 MSC时， 获取 第二 LAI信息；
则发送单元 602, 具体用于发送携带第二 LAI信息的联合注册响应消息给 用户设备， 以便用户设备在确定第二 LAI信息和第一 LAI信息一致时， 进入省 电模式。
该网络侧设备具体可以为 MME,或者其它与 MME具有类似功能的设备。 具体实施时， 以上各个单元可以作为独立的实体来实现，也可以进行任意 组合， 作为同一或若干个实体来实现， 或者， 还可以将上述各个单元作为一个 模块， 集成在现有的 MME上， 等等。
以上各个单元的具体实施可参见前面的方法实施例， 在此不再赘述。 备进入省电模式， 在该省电模式下， 用户设备监听 E-UTRAN的寻呼信道和 GERAN/UTRAN的广播信道， 但不监听 GERAN/UTRAN的寻呼信道， 从而可 以达到省电的目的。 而且， 由于在本发明所述的联合附着流程中， MME的选 择单元 603可以根据用户设备提供的第一 LAI信息来选择 MSC , 所以可以避免 用户设备发起冗余的 LAU流程， 保障了用户设备工作在 GERAN/UTRAN环境 中的业务的高效性。 实施例八、
相应的， 本发明实施例提供一种通信系统， 包括本发明实施例提供的任一 种用户设备和任一种网络侧设备。其中， 用户设备和网络侧设备具体可以参见 实施例六和实施例七， 在此不再赘述。 例如， 可以如下：
用户设备， 用于在 E-UTRAN发起联合注册流程， 在确定联合注册流程注 册成功时， 进入省电模式， 以对业务进行处理；
网络侧设备， 用于接收用户设备发送的联合注册请求消息，发送联合注册 响应消息给用户设备， 以触发用户设备进入省电模式。
其中，省电模式为：用户设备监听 E-UTRAN的寻呼信道，不监听 GERAN/ UTRAN的寻呼信道；在主叫时，通过 GERAN/UTRAN接入 CS域完成主叫流 程； 在被叫时， 利用 E-UTRAN的寻呼信道接收 CS域发送的被叫寻呼， 然后 通过 GERAN/UTRAN接入 CS域完成被叫流程。
由上可知，本实施例的通信系统采用为多模多待的用户设备设置一种省电 模式， 在该省电模式下， 用户设备监听 E-UTRAN 的寻呼信道和 GERAN/UTRAN的广播信道，但不监听 GERAN/UTRAN的寻呼信道，从而可 以节省用户设备在 CS域中的能量消耗， 达到节省用户设备的耗电量的目的； 与此同时， 为了保证不影响多模多待用户设备的用户体验， 在该省电模式下， 主叫时， 可以通过 GERAN/UTRAN接入 CS域完成主叫流程， 而在被叫时， 则可以利用 E-UTRAN 的寻呼信道来接收 CS 域发送的被叫寻呼， 然后通过 GERAN/UTRAN接入 CS域完成被叫流程。 也就是说， 采用该方案， 可以在 不影响多模多待用户设备的用户体验的前提下， 节省用户设备的耗电量。
而且， 由于在本发明所述的联合附着流程中， MME是通过用户设备提供 的第一 LAI信息来选择 MSC的， 所以可以避免用户设备发起冗余的 LAU流程， 保障了用户设备工作在 GERAN/UTRAN环境中的业务的高效性。 本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步 骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读 存储介质中， 存储介质可以包括： 只读存储器（ROM, Read Only Memory ), 随机存取记忆体（RAM, Random Access Memory ) , 磁盘或光盘等。
以上对本发明实施例所提供的一种业务处理方法、装置和系统进行了详细 施例的说明只是用于帮助理解本发明的方法及其核心思想； 同时，对于本领域 的技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之 处， 综上所述， 本说明书内容不应理解为对本发明的限制。

Claims

权 利 要 求
1、 一种业务处理方法， 其特征在于， 包括：
E-UTRAN发起联合注册流程；
在确定联合注册流程注册成功后， 用户设备监听 E-UTRAN的寻呼信道， 不监听全球移动通讯系统 /增强型数据速率全球移动通讯系统无线接入网 GERAN/通用移动通信系统陆地无线接入网 UTRAN 的寻呼信用户设备向演 进的通用移动通信系统陆地无线接入网道；
当用户设备为主叫时， 通过 GERAN/UTRAN接入 CS域完成主叫流程； 当用户设备为被叫时， 通过 E-UTRAN的寻呼信道接收 CS域发送的被叫 寻呼， 通过 GERAN/UTRAN接入 CS域完成被叫流程。
2、根据权利要求 1所述的方法， 其特征在于， 所述用户设备向 E-UTRAN 发起联合注册流程， 具体为：
用户设备发送联合注册请求消息给移动管理实体 MME;
则所述确定联合注册流程注册成功具体为：接收 MME发送的联合注册响 应消息。
3、 根据权利要求 2所述的方法， 其特征在于， 还包括：
用户设备获取第一位置区别码 LAI信息， 所述第一 LAI信息为用户设备 当前所在的 GERAN/UTRAN对应的 LAI信息；
则所述用户设备发送联合注册请求消息给 MME具体为：用户设备发送携 带第一 LAI信息的联合注册请求消息给 MME。
4、 根据权利要求 3所述的方法， 其特征在于， 所述联合注册响应消息中 携带第二 LAI信息， 则所述用户设备监听 E-UTRAN 的寻呼信道， 不监听 GERAN/ UTRAN的寻呼信道之前， 还包括：
确定联合注册响应消息中携带的第二 LAI信息与用户设备发送给 MME 的第一 LAI信息一致。
5、 根据权利要求 1至 4中任一项所述的方法， 其特征在于，
所述联合注册流程具体为联合的附着流程或联合的跟踪区更新流程。
6、 一种业务处理方法， 其特征在于， 应用于演进的通用移动通信系统陆 地无线接入网 E-UTRAN网络中， 包括： 接收用户设备发送的联合注册请求消息，所述联合注册请求消息中携带第 一 LAI信息，所述第一 LAI信息为用户设备当前所在的 GERAN/UTRAN对应 的 LAI信息；
根据第一 LAI信息为用户设备选择移动交换中心 MSC;
发送联合注册响应消息给用户设备。
7、 根据权利要求 6所述的方法， 其特征在于，
当无法根据第一 LAI信息选择移动交换中心 MSC时，获取第二 LAI信息， 在所述联合注册响应消息中携带第二 LAI信息。
8、 根据权利要求 6或 7所述的方法， 其特征在于，
所述联合注册请求消息具体为联合的附着请求消息或联合的位置更新请 求消息；
所述联合注册响应消息具体为联合的附着接受消息或联合的位置更新接 受消息。
9、 一种用户设备， 其特征在于， 包括：
发起单元，向演进的通用移动通信系统陆地无线接入网 E-UTRAN发起联 合注册流程；
处理单元， 用于在确定联合注册流程注册成功时， 监听 E-UTRAN的寻呼 信道， 不监听全球移动通讯系统 /增强型数据速率全球移动通讯系统无线接入 网 GERAN/通用移动通信系统陆地无线接入网 UTRAN的寻呼信道； 在主叫 时，通过 GERAN/UTRAN接入 CS域完成主叫流程；在被叫时，利用 E-UTRAN 的寻呼信道接收 CS域发送的被叫寻呼， 然后通过 GERAN/UTRAN接入 CS 域完成被叫流程。
10、 根据权利要求 9所述的用户设备， 其特征在于，
所述发起单元， 具体用于发送联合注册请求消息给移动管理实体 MME; 则所述处理单元， 具体用于在接收到 MME发送的联合注册响应消息时， 监听 E-UTRAN 的寻呼信道， 不监听全球移动通讯系统 /增强型数据速率全球 移动通讯系统无线接入网 GERAN/通用移动通信系统陆地无线接入网 UTRAN的寻呼信道；在主叫时，通过 GERAN/UTRAN接入 CS域完成主叫流 程； 在被叫时， 利用 E-UTRAN的寻呼信道接收 CS域发送的被叫寻呼， 然后 通过 GERAN/UTRAN接入 CS域完成被叫流程。
11、 根据权利要求 10所述的用户设备， 其特征在于， 还包括获取单元； 获取单元， 用于获取第一位置区别码 LAI信息， 所述第一 LAI信息为用 户设备当前所在的 GERAN/UTRAN对应的 LAI信息；
则所述发起单元， 具体用于发送携带第一 LAI信息的联合注册请求消息 给 MME。
12、 根据权利要求 11所述的用户设备， 其特征在于，
所述处理单元，具体用于在接收 MME发送的携带第二 LAI信息的联合注 册响应消息， 且确定第二 LAI信息与第一 LAI信息一致时， 监听 E-UTRAN 的寻呼信道， 不监听全球移动通讯系统 /增强型数据速率全球移动通讯系统无 线接入网 GERAN/通用移动通信系统陆地无线接入网 UTRAN的寻呼信道； 在主叫时， 通过 GERAN/UTRAN接入 CS域完成主叫流程； 在被叫时， 利用 E-UTRAN的寻呼信道接收 CS域发送的被叫寻呼， 然后通过 GERAN/UTRAN 接入 CS域完成被叫流程。
13、 一种网络侧设备， 其特征在于， 包括：
接收单元， 用于接收用户设备发送的联合注册请求消息， 所述联合注册请 求消息中携带第一 LAI 信息， 所述第一 LAI 信息为用户设备当前所在的 GERAN/UTRAN对应的 LAI信息；
选择单元， 用于根据第一 LAI信息为用户设备选择移动交换中心 MSC; 发送单元， 用于发送联合注册响应消息给用户设备。
14、 根据权利要求 13所述的网络侧设备， 其特征在于， 还包括获取单元； 获取单元， 用于当选择单元无法根据第一 LAI信息选择 MSC时， 获取第 二 LAI信息；
则所述发送单元， 具体用于发送携带第二 LAI信息的联合注册响应消息 给用户设备。
15、 一种通信系统， 其特征在于， 包括权利要求 9至 12所述的任一种用 户设备和权利要求 13至 14所述的任一种网络侧设备。
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