WO2012094799A1

WO2012094799A1 - Processing method applying idle mode signaling reduction (isr) mechanism and user equipment thereof

Info

Publication number: WO2012094799A1
Application number: PCT/CN2011/070123
Authority: WO
Inventors: 陈中平; 舒林
Original assignee: 华为技术有限公司
Priority date: 2011-01-10
Filing date: 2011-01-10
Publication date: 2012-07-19
Also published as: CN102860098A; CN102860098B

Abstract

The present invention discloses a processing method applying the Idle mode Signaling Reduction (ISR) mechanism and a User Equipment (UE) thereof. Said method includes: obtaining the information that the Evolved-Universal Mobile Telecommunication System (UMTS) Terrestrial Radio Access Network (E-UTRAN), with which the UE registers, can not provide the Circuit Switch (CS) service for the UE and that the E-UTRAN capability is not deactivated; deactivating the Evolved Packet System (EPS) Mobility Management (EMM) combined procedures capability of the UE or deactivating the UE configuration of using the Circuit Switch FallBack (CSFB) and/or Short Message Service (SMS) over SGs. Applying the embodiments of the present invention, through deactivating the EMM combined procedures capability of the UE or deactivating the UE configuration of using the CSFB and/or SMS over SGs, enables the UE to maintain the ISR or to activate the ISR when the UE initiates a combined routing area/location area updating procedure in the Global System for Mobile communication (GSM) EDGE Radio Access Network (GERAN) /UTRAN, but not to deactivate or to inactivate the ISR, thus reducing the mobility management procedure of the UE in the idle mode between different access networks, and saving the signaling resources.

Description

Processing method and user equipment for applying ISR mechanism

The present invention relates to the field of communications technologies, and in particular, to a processing method and user equipment for applying Idle mode signalling (also referred to as ISR in idle mode).

Background technique

A large number of user equipments (UEs) in idle mode frequently switch between the radio access network/UMTS terrestrial radio access network (GERAN/UTRAN) and the evolved UMTS terrestrial radio access network (E-UTRAN) The mobility management process causes storms in signaling resources, and the network introduces ISR functions. The ISR is selected or activated by the serving GPRS support node (SGSN) or the mobility management entity (MME) in the UE-initiated RAU Procedure or TAU Procedure. Once the ISR is activated, the UE moves in the registered RA area and the registered TA area, and the RAU or TAU process does not occur due to the access system change, which saves signaling.

In order to reuse existing Circuit Switched Domain (CS) services in an E-UTRAN network, an architecture is introduced that connects to the CS network through an E-UTRAN network, where the mobility management entity (MME) in the E-UTRAN network passes the SGs. The interface is connected to a mobile switching center (MSC) in the CS network to provide CS services to user equipment (UE) in the E-UTRAN network.

The MME and the MSC establish an SGs association for the UE, and implement the CS service back to the legacy network (CSFB, CS fallback) of the UE in the E-UTRAN network, and also implement the SMS over SGs transmission in the E-UTRAN network.

Deactivating E-UTRAN capability means setting the E-UTRAN capability to an invalid value (for example, the effective value of the capability is 1 and the invalid value is 0. Deactivating the E-UTRAN capability means setting the E-UTRAN capability. Is 0). Once the E-UTRAN capability is deactivated, the UE can be prevented from handing over from the GERAN/UTRAN network to the E-TRAN network (Handover) or cell reselection. For the un-deactivated E-UTRAN capability, that is, setting the E-UTRAN capability to a valid value, it can ensure that the UE implements handover (Handover) or cell reselection from the GERAN/UTRAN network to the E-TRAN network.

In the prior art, UEs that use CSFB and/or SMS over SGs are configured, When the GERAN/UTRAN network performs the location area update procedure, if it is confirmed that the registered E-UTRAN network cannot provide CS services to it and does not deactivate the E-UTRAN capability, the ISR can be maintained, and the ISR performance is prevented from being impaired. However, if the UE initiates a joint routing area/location area update procedure, and the SGSN confirms that the UE supports the EMM combined procedures capability (EMM is EPS Mobility Management, where EPS is an evolved packet system (Evolved) Packet System)), even if the UE confirms that the registered E-UTRAN network cannot provide CS services to it and does not deactivate the E-UTRAN capability, the ISR cannot be deactivated, which affects the performance of the ISR. Summary of the invention

The embodiment of the invention provides a processing method and user equipment for applying the ISR mechanism. When the UE initiates a joint routing area/location area update procedure in the GERAN/UTRAN network, the ISR mechanism can still be used.

An embodiment of the present invention provides a processing method for applying a signaling signaling ISR mechanism, where the method includes:

When the user equipment UE learns that the registered evolved UMTS terrestrial radio access network E-UTRAN network cannot provide the circuit switched domain CS service thereto, and the UE does not deactivate the E-UTRAN capability, the UE deactivates the mobility management of the UE. The entity EMM joins the process capability; or deactivates the UE to configure the SMS over SGs using the CS service back to the legacy network CSFB and/or the SGs interface.

The embodiment of the invention further provides a user equipment, where the terminal device includes:

The learning unit, the E-UTRAN network used by the UE to learn to register is unable to provide the CS service, and does not deactivate the E-UTRAN capability;

The processing unit is configured to deactivate the UE's EMM joint process capability; or deactivate the UE configuration using CSFB and/or SMS over SGs.

Applying the method and the terminal device provided by the embodiments of the present invention to deactivate the UE's EMM joint process capability; or deactivating the UE configuration using CSFB and/or SMS over SGs, so that the UE initiates a joint routing area in the GERAN/UTRAN network/ The location area update process can also continue to maintain or activate the ISR instead of deactivating or deactivating the ISR, which reduces the mobility management process of the UE in idle mode between different access networks, and saves signaling resources. DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. One of ordinary skill in the art can also obtain other drawings based on these drawings without undue creative effort.

1 is a flow chart of a processing method according to an embodiment of the present invention;

2 is a flow chart according to an embodiment of the present invention;

3 is a block diagram showing the structure of a processing apparatus according to an embodiment of the present invention.

detailed description

BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative work are within the scope of the present invention.

Referring to FIG. 1, which is a flowchart of a processing method according to an embodiment of the present invention, the process may specifically include:

Step 101: The UE learns that the E-UTRAN network cannot provide the CS service to the UE, and the UE does not deactivate the E-UTRAN capability.

The UE learns that the E-UTRAN network cannot provide CS services to it, specifically:

The UE initiates a joint request message to the MME;

According to the received response message returned by the MME, it is learned that the registered E-UTRAN network cannot provide CS services to it. For example, the response message returned by the MME carries "EMM #18 (CS domain not available)"-CS domain is unavailable. The UE can learn that the E-UTRAN network cannot provide the CS service according to the "EM domain #18 (CS domain not available)-CS domain. The embodiment of the present invention is not limited, and the UE can learn E- by other means. The UTRAN network cannot provide CS services to it.

An entry in the UE network capability (MS network capability) is an EMM joint process capability, and the entry is used to indicate whether the UE supports the EPS joint mobility management process. If the UE supports the joint process, then "EMM Combined The procedure capability" entry has a value of 1, that is, the UE supports the EMM joint process; otherwise, the value is 0, that is, the UE does not support the EMM joint process. Deactivating E-UTRAN capability means setting the E-UTRAN capability to an invalid value (for example, the capability has a valid value of 1 and an invalid value of 0. The UE initiates a joint request message to the MME, which means that the UE supports the EMM joint process, and the "EMM Combined procedures capability" has a thief value of 1.

Step 102: The UE deactivates the UE's EMM joint process capability; or deactivates the UE configuration to use CSFB and/or SMS over SGs.

The UE's EMM joint process capability is deactivated, that is, the UE's EMM joint process capability is changed from supporting the EMM joint process to not supporting the EMM joint process. For example, change '' Combined procedures capability' to change the value from 1 to 0.

Deactivating the UE configuration using CSFB and/or SMS over SGs is for configuring UEs using CSFB and/or SMS over SGs, ie also changing UE configuration to use CSFB and/or SMS over SGs to change to UE non-configuration using CSFB and/or SMS Over SGs. For example, the configuration uses IMS PS voice only and so on. If the UEs that are not using CSFB and/or SMS over SGs are already configured, the configuration remains unconfigured to use CSFB and/or SMS over SGs.

In addition, deactivation of the UE configuration using CSFB and/or SMS over SGs can also be understood as shifting the UE's operating mode from CS/PS mode (eg CS/PS mode 1 or CS/PS mode 2) to non-CS/PS. Mode (for example, PS mode (for example, PS mode 1 or PS mode 2)); and / or, the value of "E-UTRAN voice domain preference for E-UTRAN" is from "CS voice only" (CS Voice) Only ) "Change to "IMS PS Voice only", or change "CS voice preferred, IMS PS Voice as secondary" to "Priority IMS PS" IMS PS voice preferred (CS Voice as secondary )".

In the E-UTRAN network, the UE can work in the following four modes of operation:

PS mode 1: The UE is only registered in the EPS service, and the "UE's usage setting" is set to "voice centric". This mode means that the current UE is a voice type that only requires EPS services. Terminal.

PS mode 2: The UE is only registered in the EPS service, and the "UE's usage setting" is set to "data centric". This mode means that the current UE is a data type terminal that only requires EPS services.

CS/PS mode 1: The UE registers in the EPS and non-EPS services, and the "UE's usage setting" is set to "voice centric". This mode means that the current UE is a voice type terminal that requires EPS services and non-EPS services (that is, CS services). CS/PS mode 2: The UE registers in the EPS and non-EPS services, and the "UE's usage setting" is set to "data centric". This mode means that the current UE is a data type terminal that requires EPS services and non-EPS services (ie, CS services).

In the embodiment of the present invention, the UE configuration uses CSFB and/or SMS over SGs, which means that it operates in the operation mode "CS/PS mode" (for example, "CS/PS mode 1" or "CS/PS mode 2"). Therefore, a UE describing "CS/PS mode l or CS/PS mode 2" can also be considered as a UE configured to use CSFB and/or SMS over SGs. That is, UEs configured to use CSFB and/or SMS over SGs are UEs operating in the operating mode CS/PS mode; UEs not configured to use CSFB and/or SMS over SGs are operating in non-CS/PS mode UE (for example, UE in operating mode PS mode).

The UE deactivates the UE's EMM joint process capability; or deactivates the UE configuration to use CSFB and/or SMS over SGs, which enables the UE to initiate a joint routing area/location area update procedure in the GERAN/UTRAN network, maintaining or activating The purpose of the ISR.

For the UE, the state of the ISR can be maintained or activated by the temporary identifier (TIN, Temporary Identity used in Next update-) used for the next update. The TIN is a parameter of the UE context, and is used to determine the UE identity information that needs to be carried in the message initiated by the next UE. The value of the TIN may be a Globally Unique Temporary Identity (GUTI), or a Temporary Mobile Subscriber Identity (P-TMSI, IPacket Temporary Mobile Subscriber Identity), or a temporary mobility related to the wireless access technology. RAT-related TMSI (radio acess technology-related Temporary Mobile Subscriber Identity) ₀ where the UE sets the TIN to "RAT-related TMSI" in the scenario of ISR activation; otherwise, if the ISR is not activated or goes The UE is configured to set the TIN to the GUTI or the P-TMSL. The step of the UE maintaining or activating the ISR may include: the UE setting the TIN to “RAT-related TMSI” according to the received ISR activation indication information; or, the UE continues to maintain ISR, maintain TIN set to "RAT-related TMSI". Specifically, the UE setting the TIN to "RAT-related TMSI" according to the received ISR activation indication information may include the following steps:

The UE that uses the CSFB and/or the SMS over SGs sends a joint router/location area update request message to the SGSN, and the EMM joint process capability carried in the message indicates that the UE does not support the EMM joint process;

The SGSN learns that the UE does not support the EMM joint process, and may choose to maintain or activate the ISR; The SGSN returns a joint routing update accept message to the UE, where the message carries an ISR activation indication message.

The UE receives the ISR activation indication information, and sets the TIN to "RAT-related TMSI";

Or,

The UE that uses the CSFB and/or the SMS over SGs is not configured to send a joint router/location area update request message to the SGSN, and the EMM joint process capability information that is not carried in the message;

The SGSN does not know the EMM joint process capability information of the UE, and may choose to maintain or activate the ISR. The SGSN returns a joint route update accept message to the UE, where the message carries the ISR activation indication message, the UE receives the ISR activation indication information, and sets the TIN to "RAT. -related TMSI";

Or,

Configuring a UE that uses CSFB and/or SMS over SGs to initiate a location area update procedure;

If the UE learns that it does not support the EMM joint process, it can accept the ISR activation indication sent by the network, and set the TIN to "RAT-related TMSI";

Or,

UEs that use CSFB and/or SMS over SGs are not configured to initiate a location area update procedure; if the UE learns that CSFB and/or SMS over SGs are not configured, the UE may accept an ISR activation indication sent by the network or maintain an active ISR;

Based on the process of deactivating the EMM joint process capability of the UE according to step 102, when the UE configured to use the CSFB and/or the SMS over SGs performs the Combined RAU/LAU process, the information of the EMM joint process (ie, the "EMM Combined procedures capability" value is not supported. Provided as 0) to the SGSN. The SGSN learns that the UE does not support the EMM joint process, and may choose to maintain or activate the ISR. Specifically, the SGSN returns a combined route update accept message (Combined RAU/LAU Accept) to the UE, where the message carries the ISR activation indication information. For the UE, if the ISR activation indication information is received, the ISR activation is known, that is, the TIN is set to "RAT-related TMSI"; or the UE continues to maintain the ISR, and the TIN is set to "RAT-related TMSI".

The processing of the EMM joint process capability of the deactivated UE implements the routing area/location area update process initiated by the UE in the GERAN/UTRAN network, and maintains or activates the ISR, thereby improving the performance of the ISR. In addition, the process may also be used to implement the UE performing a location area update procedure (LAU Procedure) on the GERAN/UTRAN network, maintaining or activating The purpose of the ISR is to improve the performance of the ISR. Specifically, when the UE initiates a location area update procedure in the GERAN/UTRAN network, if the UE learns that it does not support the EMM joint process (ie, the "EMM Combined procedures capability" is set to 0), the UE may accept the ISR activation indication or maintain the network. Activate the ISR, ie set the TIN to "RAT-related TMSI"; or the UE continues to maintain the ISR, maintaining the TIN set to "RAT-related TMSI" ₀

Based on the step 102 to deactivate the UE configuration using CSFB and/or SMS over SGs, the UEs using CSFB and/or SMS over SGs are not configured, and performing the Combined RAU/LAU procedure will not require providing the EMM joint process capability to the SGSN. The SGSN does not receive the EMM joint process capability information of the UE, and may choose to continue to maintain or activate the ISR. Specifically, the SGSN returns a combined route update accept message (Combined RAU/LAU Accept) to the UE, where the message carries the ISR activation indication information. For the UE, if the ISR activation indication information is received, the ISR activation is known, that is, the TIN is set to "RAT-related TMSI"; or the UE continues to maintain the ISR, and the TIN is set to "RAT-related TMSI" ₀

The above deactivation UE configuration uses CSFB and/or SMS over SGs to implement the routing/location area update procedure initiated by the UE in the GERAN/UTRAN network, maintaining or activating the ISR, and improving the performance of the ISR. In addition, the process can also be used to implement the LAU procedure in the GERAN/UTRAN network to maintain or activate the ISR, and improve the performance of the ISR. Specifically, when the UE initiates a location area update procedure in the GERAN/UTRAN network, and the UE learns that the CSFB and/or the SMS over SGs are not configured, the UE may accept the ISR activation indication sent by the network or maintain the activated ISR, that is, set the TIN. RAT-related TMSI"; or the UE continues to maintain the ISR, maintaining the TIN set to "RAT-related TMSI,".

It should be noted that, the embodiment of the present invention does not limit the specific time point of deactivating the EMM joint process capability of the UE or deactivating the UE configuration using the CSFB and/or the SMS over SGs. For example, the UE may learn the CS in the E-UTRAN network. The service is unavailable, but is not executed immediately after the E-UTRAN capability is deactivated; or the UE performs immediately after returning from the E-UTRAN to the GERAN/UTRAN network; or the UE returns from the E-UTRAN to the GERAN/UTRAN network to initiate a joint routing/location area Execute when the process or location update process is updated.

To this end, the method provided by the embodiment of the present invention is used to deactivate the UE's EMM joint process capability; or deactivate the UE configuration to use CSFB and/or SMS over SGs, so that the UE is in the UE Initiating a joint routing area/location area update procedure in the GERAN/UTRAN network, and continuing to maintain or activate the ISR instead of deactivating or deactivating the ISR, reducing mobility of UEs in idle mode between different access networks The management process saves signaling resources and improves the overall performance of the system.

Referring to FIG. 2, which is a flowchart of a specific example of the present invention, in this embodiment, when a UE configured to use CSFB and/or SMS over SGs knows that the E-UTRAN network cannot provide CS services to it, it is not deactivated. Under the premise of E-UTRAN capability, the UE's EMM joint process capability can be deactivated or the UE configuration can be deactivated using CSFB and/or SMS over SGs. In this way, the UE can continue to maintain or activate the ISR when initiating a joint routing area/location area update procedure in the GERAN/UTRAN network. The specific process of this embodiment is as follows:

Step 1. The UE sends a joint request message to the MME. Specifically,

The joint request message may be that the UE sends an Attach Request message to the MME, where the attachment type in the EPS Attach Type is indicated as a joint attachment, such as "combined EPS/IMSI attach"; Or,

The joint request message may be that the UE sends a tracking area update request (TAU Request) message to the MME, where the update type in the EPS update type element is indicated as a joint tracking area/location area update, such as "combined TA/LA updating".

The UE initiates a joint request message to the MME, which means that the UE supports the EMM joint process, and the "EMM Combined procedures capability" thief value is 1.

Step 2. The MME cannot provide CS services for the UE. In other words, the MME cannot establish an SGs association with the MSC for the UE.

Here, the current E-UTRAN network cannot provide the CS service for the UE. The reason may be that the MME does not support (not configured) the SGs interface function, and cannot communicate with the MSC.

Step 3: The MME returns a response message to the UE, and informs the UE that the current CS service is unavailable. For example, the MME returns an Attach Accept message to the UE or the MME returns a Tracking Area Update Accept message (TAU Accept) to the UE, where the message carries a reason indicating that the CS service is unavailable. The reason may be characterized as: EMM #18 (CS Domain not available) - The CS domain is not available. According to the "EMM #18 (CS domain not available)-CS domain is unavailable, the UE can know that the E-UTRAN network cannot provide CS services to it.

Step 4-5: Deactivate the UE's EMM without deactivating the UE's E-UTRAN capability. The joint process capability or deactivation of the UE configuration uses CSFB and/or SMS over SGs. A premise of the embodiment of the present invention is that the E-UTRAN capability of the UE is not deactivated when the UE learns that the currently registered E-UTRAN network cannot provide the CS service. The UE's E-UTRAN capability is not deactivated, which means that the UE can remain in the E-UTRAN network instead of performing network reselection and returning to the GERAN/UTRAN network. The possible reason is that both the UE and the E-UTRAN network support IMS voice. Although the UE cannot enjoy CS voice in the current E-UTRAN network, it can enjoy IMS voice.

The description of the EMM joint process capability to deactivate the UE is as follows:

One of the UE's network capabilities is an EMM Combined Procedure capability, which is used to indicate whether the UE supports the EPS joint mobility management procedure. If the UE supports the joint procedure, the "EMM Combined procedures capability" entry is used. The value of the assignment is 1, that is, the UE supports the EMM joint process; otherwise, the value is 0, that is, the UE does not support the EMM joint process. The ability to deactivate the UE's EMM joint process is to change the assignment of the "EMM Combined procedures capability" from 1 to 0, which will change the UE's EMM joint process capability from supporting the EMM joint process to not supporting the EMM joint process.

Based on the above processing, when the UE returns a GERAN/UTRAN network from the E-UTRAN network to initiate a joint routing area/location area update request to the SGSN (for example, entering a new routing area-RA, ie, a RA that is not previously registered), The request carries the EMM combined procedure capability EMM Combined procedures capability entry; wherein the EMM joint process capability entry is assigned a value of 0. The SGSN learns that the UE does not support the EMM joint process and may choose to continue to maintain or activate the ISR. Specifically, the SGSN returns a combined route update accept message (Combined RAU/LAU Accept) to the UE, where the message carries the ISR activation indication information. For the UE, if the ISR activation indication information is received, the ISR activation is known, that is, the TIN is set to "RAT-related TMSI"; or the UE continues to maintain the ISR, and the maintenance top is set to "RAT-related TMSI" ₀

The foregoing process implements the routing area/location area update procedure initiated by the UE in the GERAN/UTRAN network, maintains or activates the ISR, and improves the performance of the ISR. In addition, the process can also be used to implement the LAU procedure in the GERAN/UTRAN network to maintain or activate the ISR, and improve the performance of the ISR. Specifically, when the UE initiates a location area update procedure in the GERAN/UTRAN network, if the UE learns that it does not support the EMM joint process ("EMM Combined procedures capability" is 0), the network can be accepted. The sent ISR activation indication, that is, the TIN is set to "RAT-related TMSI"; or the UE continues to maintain the ISR, and the TIN is set to "RAT-related TMSI" ₀

Deactivate the UE configuration using CSFB and / or SMS over SGs as follows:

The effect of deactivating the UE configuration using CSFB and/or SMS over SGs is that the UE is not configured to use CSFB and/or SMS over SGs. That is, changing the properties of the UE from the configuration using CSFB and/or SMS over SGs to using non-CSFB and/or SMS over SGs, the non-CSFB and/or SMS over SGs can be configured using IMS PS voice only and so on. This process can include changing the original configuration to use CSFB and/or SMS over SGs to use unconfigured UEs using CSFB and/or SMS over SGs.

Equivalent to this behavior can be understood as shifting the UE's operating mode from CS/PS mode (eg CS/PS mode 1 or CS/PS mode 2) to non-CS/PS mode (eg PS mode (eg PS mode) 1 or PS mode 2)); and / or, change the value of "E-UTRAN voice domain preference for E-UTRAN" from "CS Voice only", to "IMS only" Voice (IMS PS Voice only), or change "CS voice preferred, IMS PS Voice as secondary" to "Prioritize IMS PS domain voice followed by CS voice (IMS PS) Voice preferred, CS Voice as secondary )". The specific way in which the UE changes from configuring CSFB and/or SMS over SGs to other attributes is not limited here.

Based on the above processing, when the UE returns from the E-UTRAN network to the GERAN/UTRAN network to initiate a joint routing area/location area update request to the SGSN (for example, entering a new routing area-RA, ie not previously registered RA), due to If the UE is not configured to use CSFB and/or SMS over SGs or the working mode is non-CS/PS mode (eg, PS mode), then the UE will not need to provide EMM joint process capability to the SGSN. The SGSN does not receive information related to supporting the EMM joint process, and the SGSN may choose to continue to maintain or activate the ISR. Specifically, the SGSN returns a combined route update accept message (Combined RAU/LAU Accept) to the UE, where the message carries the ISR activation indication information. For the UE, if the ISR activation indication information is received, the ISR activation is known, that is, the TIN is set to "RAT-related TMSI"; or the UE continues to maintain the ISR, and the TIN is set to the "RAT-related TMSI" ₀ update procedure, maintaining or The purpose of activating ISR is to improve the performance of the ISR. In addition, the process can also be used to implement the UE performing location area update procedure on the GERAN/UTRAN network (LAU Procedure ), the purpose of maintaining or activating ISR improves the performance of the ISR. Specifically, when the UE initiates a location area update procedure in the GERAN/UTRAN network, if the UE learns that the CSFB and/or the SMS over SGs are not configured, the UE may accept the ISR activation indication sent by the network, that is, set the TIN to "RAT- Related TMSI"; or the UE continues to maintain the ISR, maintaining the TIN set to "RAT-related TMSI'O

Based on the above ideas, the UE deactivates the attributes supporting the EMM joint process as an example to illustrate its specific process:

A possible implementation manner is that the message applied by the joint routing area/location area update process may be that the UE sends a joint routing area/location area update request message (Combined RAU/LAU Request) to the SGSN, and the message is updated. The type of update indicated by the type of update (Update type) is the combined routing area/location area update (combined RA/LA updating ).

If the EMM joint process capability of the UE is deactivated, the UE assigns the value of the entry "EMM Combined procedures capability" to 0 in the joint routing area/location area update request message, indicating that the UE does not support the EMM joint process (Mobile station) Does not support EMM combined procedures ). The SGSN knows that the "EMM Combined procedures capability" has a thief value of 0, so the SGSN will not be affected by the entry "EMM Combined procedures capability" when selecting whether to activate the ISR. Thus, the SGSN can choose to activate or maintain the ISR. Thus, The subsequent SGSN returns to the UE the combined routing area/location area update received message ( Combined RAU/LAU Accept) to indicate that the UE activates the ISR.

It should be noted that, in the embodiment of the present invention, the specific time point of deactivating the EMM joint process capability of the UE or deactivating the UE configuration using the CSFB and/or the SMS over SGs is not limited. For example, the UE may be in the E-UTRAN network. The CS service is unavailable, but is not executed immediately after the E-UTRAN capability is deactivated; or the UE performs immediately after returning from the E-UTRAN to the GERAN/UTRAN network; or the UE returns from the E-UTRAN to the GERAN/UTRAN network to initiate a joint routing area/location Executed when the zone update process or location update process.

It should be noted that, for the UE to deactivate the EMM joint process capability of the UE or to deactivate the UE configuration using CSFB and/or SMS over SGs, the UE may also reselect the EMM association of the activated UE if some trigger conditions are met. The process capability or activation configures the UE to use CSFB and/or SMS over SGs. For example, the value of "EMM Combined procedures capability" is 0 and the value of "EMM Combined procedures capability" is 1. Or ^ ¹ mode of operation from PS mode Transfer to CS/PS mode. In this way, the triggering condition may include, but is not limited to, the following situations: 1) restarting after the UE is powered off;

2) The UE performs a PLMN selection related procedure. For example, the UE returns from the GERAN/UTRAN network to the E-UTRAN network, and reselects the PLMN. The selected PLMN is different from the PLMN corresponding to the previous CS service unavailable.

Of course, this embodiment does not exclude other trigger conditions.

Based on the above description, the UEs configured to use CSFB and/or SMS over SGs are aware that the E-UTRAN network CS service is unavailable, for example, the UE receives "EMM #18 (CS domain not available)", and does not deactivate the E-UTRAN capability. On the premise, the EMM joint process capability of the UE may be deactivated or the UE configuration may be deactivated using CSFB and/or SMS over SGs, so that when the UE returns from the E-UTRAN to the GERAN/UTRAN network to initiate a joint routing area/location area update procedure or The location update process can continue to activate or maintain the ISR instead of deactivating or deactivating the ISR, reducing the mobility management process of the UE in the idle mode between different access networks, saving signaling resources, thereby improving the system. Overall performance.

The embodiment of the present invention further provides a user equipment. Referring to FIG. 3, the user equipment includes: a learning unit 301, configured to learn that the registered E-UTRAN network cannot provide CS service, and does not deactivate the E-UTRAN capability. ;

The processing unit 302 is configured to deactivate the UE's EMM joint process capability; or deactivate the UE configuration to use CSFB and/or SMS over SGs.

The above processing unit may specifically include

a first execution unit, configured to deactivate the EMM joint process capability of the UE; or

The second execution unit is configured to deactivate the UE configuration using CSFB and/or SMS over SGs.

The timing performed by the processing unit includes: after learning that the CS service in the E-UTRAN network is unavailable and not deactivating the E-UTRAN capability; or after returning from the E-UTRAN network to the GERAN/UTRAN network; or, the UE is from the E-UT The UTRAN returns when the GERAN/UTRAN network initiates a joint routing area/location area update procedure or location update procedure.

Applying the user equipment provided by the embodiment of the present invention, when the UE learns that the E-UTRAN network CS service is unavailable, for example, the UE receives the "EM domain #18 (CS domain not available)", without deactivating the E-UTRAN capability, You can deactivate the UE's EMM joint process capability or deactivate the UE configuration using CSFB and/or SMS over SGs so that when the UE returns from E-UTRAN The GERAN/UTRAN network initiates a joint routing area/location area update procedure or location update procedure to continue to activate or maintain the ISR instead of deactivating or deactivating the ISR, reducing UE mobility in idle mode between different access networks. The sexual management process saves signaling resources and improves the overall performance of the system.

It should be noted that, in this context, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply such entities or operations. There is any such actual relationship or order between them. Furthermore, the terms "including", "comprising" or "comprising" or "comprising" are intended to encompass a non-exclusive inclusion, such that a process, method, article, or device that includes a plurality of elements includes not only those elements but also Other elements, or elements that are inherent to such a process, method, item, or device. An element defined by the statement "comprising a ..." without further limitation does not exclude the existence of additional identical elements in the process, method, article or device including the element.

A person skilled in the art can understand that all or part of the steps in implementing the above method embodiments can be completed by a program instructing related hardware, and the program can be stored in a computer readable storage medium, which is referred to herein. Storage media, such as: ROM/RAM, disk, CD, etc.

The above description is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Any modifications, equivalents, improvements, etc. made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

Rights request

A processing method for applying a signaling ISR mechanism, the method comprising: the user equipment UE knowing that the registered evolved UMTS terrestrial radio access network E-UTRAN network cannot provide the circuit switched domain CS service thereto And the UE does not deactivate the E-UTRAN capability; the UE deactivates the evolved packet system mobility management EMM joint process capability of the UE; or deactivates the UE configuration to use the CS service back to the legacy network CSFB and/or based on the SGs SMS SMS over SGs for the interface.

The method according to claim 1, wherein the step of the user equipment being informed that the registered E-UTRAN network cannot provide the CS service to the user equipment comprises:

The UE initiates a joint request message to the MME;

Receiving the response message returned by the MME, the returned message includes the cause value EMM #18; the UE learns that the currently provided E-UTRAN cannot provide the CS service according to the cause value EMM #18.

The method according to claim 1, wherein the EMM joint process capability of the deactivated UE is used; or the deactivated UE configuration uses CSFB and/or SMS over SGs, including: learning the CS service in the E-UTRAN network After being unavailable and not deactivating E-UTRAN capability; or returning from the E-UTRAN network to the radio access network/UMTS terrestrial radio access network GERAN/UTRAN network; or, the UE returns GERAN/UTRAN from E-UTRAN When the network initiates a joint routing area/location area update process or location update process,

Deactivate the UE's EMM joint process capability; or deactivate the UE configuration using CSFB and / or SMS over SGs.

The method according to any one of claims 1 to 3, wherein the step of deactivating the EMM joint process capability of the UE comprises:

The UE's EMM joint process capability was changed from supporting the EMM joint process capability to not supporting the EMM joint process.

The method according to any one of claims 1 to 3, wherein the step of deactivating the UE configuration using CSFB and/or SMS over SGs comprises:

Change the UE configuration to use CSFB and / or SMS over SGs to change to UE non-configured using CSFB and / or SMS over SGs; or,

Configure UEs that use CSFB and/or SMS over SGs to work in operating mode CS/PS mode And the step of deactivating the UE configuration using CSFB and/or SMS over SGs includes: transferring the current CS/PS mode operation mode of the UE to a non-CS/PS mode operation mode; and

/ or,

Change the value of E-UTRAN voice domain preference Voice domain preference for E-UTRAN" from "CS voice only CS Voice only" to "IMS only voice IMS PS Voice only, or, "Prioritize CS voice second select IMS PS domain voice CS voice preferred, IMS PS Voice as secondary "change to "preferred IMS PS domain voice followed by CS voice IMS PS voice preferred, CS Voice as secondary".

The method according to any one of claims 1 to 3, wherein the method further comprises: the UE setting the TIN to "RAT-related TMSI" according to the received ISR activation indication information, to activate the ISR; Alternatively, the UE maintains the TIN set to "RAT-related TMSI" to continue to maintain the ISR.

A user equipment, wherein the terminal device comprises:

The device according to claim 7, wherein the processing unit comprises: a first execution unit, configured to deactivate an EMM joint process capability of the UE; or

The device according to claim 8, wherein the timing performed by the processing unit includes: learning that the CS service in the E-UTRAN network is unavailable and not deactivating the E-UTRAN capability; or, from the E - After the UTRAN network returns to the GERAN/UTRAN network; or, the UE returns from the E-UTRAN to the GERAN/UTRAN network to initiate a joint routing area/location area update procedure or location update procedure.