CN113949997A

CN113949997A - Active paging method and memory controller

Info

Publication number: CN113949997A
Application number: CN202111227727.XA
Authority: CN
Inventors: 张余
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-01-18
Anticipated expiration: 2041-10-21
Also published as: CN113949997B

Abstract

The invention discloses an active paging method and a memory controller. The method comprises the following steps: responding to signaling reduction mechanism ISR activation information of a mobile terminal in an idle state sent by a mobility management entity MME, and judging whether the mobile terminal activates ISR in the network; starting a timer under the condition that the mobile terminal is judged to activate the ISR in the network, wherein the time length of the timer is the same as the time length of the periodic position updating; before the timer is overtime, if the mobile terminal has an incoming call, the paging is preferentially carried out in the location area range indicated by the location area identifier of the mobile terminal. According to the method provided by the embodiment of the invention, the air interface resources are saved, the interactive information among network equipment is reduced, and the paging efficiency is improved.

Description

Active paging method and memory controller

Technical Field

The invention relates to the technical field of communication, in particular to an active paging method and a storage controller.

Background

In an Evolved Packet System (EPS) System, in order to reduce air interface Signaling between a mobile terminal (UE) and a core network, a function of an Idle mode Signaling Reduction mechanism (ISR) in an Idle state is introduced.

After the Mobile terminal activates the function, when there is an incoming call to the Mobile terminal, a Mobile Switching Center (MSC) sends a paging request to a Mobility Management Entity (MME), the MME pages within a Tracking Area Identity List (TAI List) of the Mobile terminal, and simultaneously sends the paging request to a Serving GPRS Support Node (SGSN), the SGSN pages within a Routing Area Identity (RAI) range, and after receiving the paging request from the SGSN, the Mobile terminal connects to the MSC to perform a paging response to establish a call, because the Location Area Identity (LAI) has not changed, the paging request is to be performed in two networks, air interface resources are consumed, and interaction information between network devices is increased.

Disclosure of Invention

Therefore, the invention provides an activation paging method and a storage controller, so as to solve the problems that in the prior art, after a mobile terminal activates an ISR function, a paging request needs to be carried out in two networks, so that air interface resources are consumed, and mutual information between network equipment is increased.

In order to achieve the above object, a first aspect of the present invention provides an active paging method, including: responding to signaling reduction mechanism ISR activation information of a mobile terminal in an idle state sent by a mobility management entity MME, and judging whether the mobile terminal activates ISR in the network; starting a timer under the condition that the mobile terminal is judged to activate the ISR in the network, wherein the time length of the timer is the same as the time length of the periodic position updating; before the timer is overtime, if the mobile terminal has an incoming call, the paging is preferentially carried out in the location area range indicated by the location area identifier of the mobile terminal.

A second aspect of the present invention provides a storage controller MSC, comprising: a judging module, configured to respond to signaling reduction mechanism ISR activation information in an idle state of a mobile terminal sent by a mobility management entity MME, and judge whether the mobile terminal activates ISR in a current network; the timing module is used for starting a timer under the condition that the mobile terminal is judged to be in the state that the network activates the ISR, wherein the time length of the timer is the same as the time length of the periodic position updating; and the paging module is used for preferentially paging in the location area range indicated by the location area identifier of the mobile terminal before the timer is overtime and if the mobile terminal has an incoming call.

The invention has the following advantages: according to the active paging method and the storage controller in the embodiment of the invention, after receiving ISR activation information of the mobile terminal sent by the MME, if the MSC judges that the mobile terminal activates ISR in the local network, the MSC starts a timer, the time length of the timer is the same as the time length of the periodic LAU, paging is preferentially carried out on LAI when incoming calls exist before the timer is overtime, and a paging request is not sent to the MME, so that the paging request is prevented from being carried out in two networks, air interface resources are saved, interactive information between network devices is reduced, and the paging efficiency is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

Fig. 1 is a flowchart of an active paging method according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a storage controller MSC according to an embodiment of the present invention;

fig. 3 is a more detailed flowchart of an active paging method according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

A typical Circuit Switched Fallback (CSFB) service flow mainly includes joint attachment, location update, a calling (MO) CSFB flow, a called (MT) CSFB flow, and detach. The attach procedure of the Mobile terminal of the user with the CSFB function is implemented based on a joint GPRS/International Mobile Subscriber Identity (IMSI) attach procedure.

The multimode single-standby handheld terminal carries the indication of supporting the CSFB capability in an attachment request message sent to the MME. After receiving a joint attach request of a user, the MME derives Visitor Location Register (VLR) information of a Circuit Switched (CS) domain while performing an Evolved Packet System (EPS) attach, and initiates a location update request to the VLR, and after receiving the location update request, the VLR marks the user as EPS attached and stores an Internet Protocol (IP) address of the MME of the user,

thus, an SGs association between the VLR and MME of the user is created in the VLR. Wherein,

the SGs interface is an interface between the MSC/VLR and the MME, through which a joint attach function can be implemented.

Subsequently, the MSC Server/VLR will perform a CS domain location update and transmit the Temporary Mobile Subscriber Identity (TMSI) and LAI (location area Identity) of the user to the MME, thereby establishing an SGs association in the MME. And finally, the MME includes the TMSI, LAI and other information distributed to the user by the VLR in an attachment request acceptance message and sends the attachment request acceptance message to the UE, and the UE is indicated to have successful joint attachment. After the joint attachment is successful, the user with the CSFB capability can process the circuit domain service in the LTE network.

In the EPS system, in order to reduce air interface Signaling between the UE and the core network, an isr (idle mode Signaling reduction) function is introduced. After the function is activated, a mobile terminal (UE) having both an Evolved Universal Terrestrial Radio Access Network (UTRAN) UTRAN/Radio Access Network (GSM EDGE Radio Access Network, GERAN) Access function and an Evolved UMTS Terrestrial Radio Access Network (E-UTRAN) Access function may simultaneously register to an MME and a General Packet Radio Service (GPRS) service Support Node (Serving GPRS Support Node, SGSN). Thus, when the UE moves under two different Access networks, the UE does not initiate a Routing Area Update (RAU) or a Tracking Area Update (TAU) across Radio Access technologies (Inter RATs), thereby reducing unnecessary signaling.

Currently, a Mobile terminal with ISR capability performs joint attachment in a fourth Generation Mobile information system (4G) network, at this time ISR is not activated, when The Mobile terminal moves to The edge of The 4G network coverage and within The 2G/3G network coverage, The Mobile terminal resides in 2/3G network, if The LAI of The Mobile terminal residing in The 2G/3G network cell is The same as The LAI of The joint MME, The Mobile terminal does not perform Location Update (LAU), The MSC does not delete The SGs interface, The Mobile terminal performs RAU, The SGSN receives The RAU request and then sends out context request information, and after receiving The context response information of The MME, The SGSN sends out Routing Area Update (RAU) acceptance information to The Mobile terminal, including an ISR activation instruction. The mobile terminal activates ISR, at the moment, when the mobile terminal has an incoming call, MSC sends a paging request to MME, MME pages in the TAI list range of the mobile terminal, meanwhile, the paging request is sent to SGSN, SGSN pages in the RAI range, after the mobile terminal receives the paging request of SGSN, the mobile terminal is connected to MSC to perform paging response to establish a call, because LAI is not changed, the paging request needs to be performed in two networks, air interface resources are consumed, and interaction information between network devices is increased.

For a better understanding of the present invention, the active paging method according to the embodiments of the present invention will be described in detail below with reference to the accompanying drawings, and it should be noted that these embodiments are not intended to limit the scope of the present disclosure.

Fig. 1 is a flowchart illustrating an active paging method according to an embodiment of the present invention. As shown in fig. 1, the active paging method in the embodiment of the present invention includes the following steps.

S110, responding to the signaling reduction mechanism ISR activation information of the mobile terminal in the idle state sent by the MME, and judging whether the mobile terminal activates ISR in the network.

S120, starting a timer under the condition that the mobile terminal is judged to be in the state that the network activates the ISR, wherein the time length of the timer is the same as the time length of the periodic position updating;

s130, before the timer is overtime, if the mobile terminal has an incoming call, the paging is preferentially carried out in the location area range indicated by the location area identification of the mobile terminal.

According to the active paging method provided by the embodiment of the invention, after the MSC receives the ISR activation information of the mobile terminal sent by the MME, if the mobile terminal is judged to activate the ISR in the local network, the MSC starts a timer, the time length of the timer is the same as the periodic LAU time length, paging is preferentially carried out on the LAI when the incoming call exists before the timer is overtime, and a paging request is not sent to the MME, so that the paging request is prevented from being carried out in two networks, the air interface resources are saved, the interaction information between network equipment is reduced, and the active paging efficiency is improved.

In some embodiments, activating the paging method before the timer times out further comprises: s11, if the mobile terminal does not respond, the mobile terminal directly sends a paging request to the MME.

In the embodiment, when the timer is overtime and an incoming call exists, the paging is preferentially carried out on the LAI, and if the mobile terminal does not respond, the paging is sent to the MME, so that the air interface resources can be saved, the interactive information among network equipment is reduced, and the paging activation efficiency is improved.

In some embodiments, activating the paging method before the timer times out further comprises: s21, if the position updating request of the MME is received, closing the timer; s22, when the mobile terminal has an incoming call, it directly sends a paging request to the MME.

In this step, the MSC closes the timer after receiving the location update of the MME before the timer expires, and directly sends a paging to the MME in the presence of an incoming call, so as to avoid a paging request from being performed in the two networks, thereby saving air interface resources, reducing interaction information between network devices, and improving the paging activation efficiency.

In some embodiments, activating the paging method before the timer times out further comprises: s31, when the periodic tracking area update TAU timer is determined to be overtime and the location update request of the mobile terminal is received, deleting the SGs interface to enable the mobile terminal to activate ISR; s32, if the mobile terminal has an incoming call, the mobile terminal is paged directly in the 2G/3G network.

In this step, before the timer times out, if the periodic TAU timer times out, the mobile terminal performs LAU, the MSC deletes the SGs interface, and the mobile terminal deactivates ISR. When there is an incoming call, the MSC pages the mobile terminal directly in the 2/3G network. Therefore, the paging request can be prevented from being carried out in two networks, the air interface resources are saved, the interactive information between network equipment is reduced, and the paging activation efficiency is improved.

In some embodiments, activating the paging method after the timer expires further comprises: s41, if the mobile terminal has an incoming call, it directly sends the paging request to MME and informs MME that it is not necessary to send the paging request to SGSN.

In this step, the MSC directly sends the paging request to the MME when there is an incoming call after the timer expires, and notifies that the paging request does not need to be sent to the SGSN, so as to avoid the paging request being performed in two networks, save air interface resources, reduce interaction information between network devices, and improve the active paging efficiency.

According to the active paging method provided by the embodiment of the invention, after receiving ISR activation information of the mobile terminal sent by an MME, an MSC judges that the ISR of the mobile terminal is activated in the local network, starts a timer, has the same duration as a periodic LAU, preferentially pages in an LAI when an incoming call exists before the timer is overtime, and sends paging to the MME if no response exists. And the MSC closes the timer after receiving the position update of the MME before the timer is overtime, and directly sends paging to the MME when the call comes. If the mobile terminal performs LAU when the periodic TAU timer is overtime before the timer is overtime, the MSC deletes the SGs interface, and the mobile terminal deactivates ISR. When there is an incoming call, the MSC pages the mobile terminal directly in the 2/3G network. The MSC directly sends the paging request to the MME when the timer is overtime and has an incoming call, and informs that the paging request does not need to be sent to the SGSN, so that the paging request is prevented from being carried out in two networks, air interface resources are saved, interactive information between network equipment is reduced, and the paging activation efficiency is improved.

The following describes a storage controller MSC according to an embodiment of the present invention in detail with reference to the accompanying drawings.

Fig. 2 is a schematic structural diagram of a storage controller MSC provided in accordance with an embodiment of the present invention. As shown in fig. 2, the storage controller MSC200 includes the following modules.

A determining module 210, configured to determine whether the mobile terminal activates ISR in the network in response to signaling reduction mechanism ISR activation information of the mobile terminal in an idle state sent by a mobility management entity MME.

And a timing module 220, configured to start a timer when it is determined that the mobile terminal activates ISR in the present network, where a duration of the timer is the same as a duration of the periodic location update.

The paging module 230 is configured to, before the timer expires, preferentially perform paging in the location area range indicated by the location area identifier of the mobile terminal if the mobile terminal has an incoming call.

In some embodiments, the paging module 230 is further configured to send the paging request directly to the MME if the mobile terminal does not respond before the timer expires.

In some embodiments, the timing module 220 is further configured to close the timer if a location update request of the MME is received before the timer expires; the paging module 230 is further configured to directly send a paging request to the MME when the mobile terminal has an incoming call.

In some embodiments, the storage controller MSC of embodiments of the present invention further includes: a deleting module, configured to delete the SGs interface to enable the mobile terminal to activate ISR when the timer is determined to be overtime and the location update request of the mobile terminal is received before the timer is overtime; the paging module 230 is further configured to directly page the mobile terminal in the 2G/3G network if the mobile terminal has an incoming call.

In some embodiments, the paging module 230 is further configured to, after the timer expires, directly send a paging request to the MME if the mobile terminal has an incoming call, and notify the MME that the MME does not need to send the paging request to the SGSN.

According to the storage controller MSC of the embodiment of the invention, after the MSC receives the ISR activation information of the mobile terminal sent by the MME, if the MSC judges that the ISR of the mobile terminal is activated in the local network, the MSC starts a timer, the time length of the timer is the same as the time length of the periodic LAU, paging is preferentially carried out on the LAI when the timer is powered on before the timeout, and a paging request is not sent to the MME, so that the paging request is prevented from being carried out in two networks, air interface resources are saved, interaction information between network equipment is reduced, and the paging activation efficiency is improved.

The paging activation method and the storage controller MSC of the embodiment of the invention can optimize ISR paging activation. Illustratively, the mobile terminal is a 4G multimode card and the CSFB technology is selected to enable voice calls.

When the mobile terminal is started, the combined attachment flow of the 4G multimode card is started, the 4G multimode card sends a combined attachment message to the MME, the MME sends a location update request to the MSC, and the VLR sends a location update flow of the 4G multimode card to the HLR.

After the joint attachment process is completed, when the mobile terminal moves to the edge of a 4G network coverage area and the coverage area of a 2G/3G network, the mobile terminal resides in the 2G/3G network, if the LAI of the mobile terminal residing in a 2G/3G network cell is the same as the LAI of the joint attachment, the mobile terminal does not perform LAU, the MSC does not delete the SGs interface, the mobile terminal performs RAU, the SGSN sends context request information to the MME after receiving the RAU request, the MME sends a request for inquiring the SGs interface state of the mobile terminal to the MSC, the MSC returns the SGs interface state of the mobile terminal, the MME sends context response information to the SGSN, the ISR activation indication is included, and the SGSN sends context response information to the MME to clarify ISR activation.

And the MME sends mobile terminal ISR activation information to the MSC after receiving the ISR activation information, wherein the mobile terminal ISR activation information comprises a mobile terminal identifier, ISR activation and network information resided during the activation.

After receiving the ISR activation information of the mobile terminal sent by the MME, the MSC judges that the ISR of the mobile terminal is activated in the local network, starts a timer, the time length of the timer is the same as the time length of the periodic LAU, preferentially pages the mobile terminal in the LAI when the timer is powered on before the time is overtime, and sends the paging to the MME if the mobile terminal does not respond. And the MSC closes the timer after receiving the position update of the MME before the timer is overtime, and directly sends paging to the MME when the call comes. If the mobile terminal performs LAU when the periodic TAU timer is overtime before the timer is overtime, the MSC deletes the SGs interface, and the mobile terminal deactivates ISR. When there is an incoming call, MSC directly pages mobile terminal in 2G/3G network. And the MSC directly sends a paging request to the MME when the timer is overtime and has an incoming call, and informs that the paging request does not need to be sent to the SGSN.

Through the processing flow, the paging request can be prevented from being carried out in two networks, so that air interface resources are saved, the interactive information between network equipment is reduced, and the paging activation efficiency is improved.

Fig. 3 is a more detailed flow diagram illustrating an active paging method according to some exemplary embodiments of the present invention.

In some embodiments, The Mobile terminal may be a fourth Generation Mobile information system (4G) multi-mode card, and The 4G multi-mode card selects The CSFB Technology to implement The voice call. The specific flow of the paging activation method of the embodiment of the invention is as follows:

s301, after the mobile terminal is started, starting a combined attachment process of the 4G multi-mode card.

In this step, after the mobile terminal is powered on, the 4G multimode card is started to send an Attach Request (Attach Request) message to the MME. The carried parameter is an Attach Type, which is used to indicate that the Attach Type is a combined Evolved Packet System (EPS)/International Mobile Subscriber identity Number (IMSI) Attach procedure, and the parameter indicates that the Mobile terminal has a Circuit Switched Fallback (CS Fallback) capability.

S302, MME sends LOCATION UPDATE REQUEST message (SGsAP-LOCATION-UPDATE-REQUEST) to corresponding VLR.

In this step, the Location Update request message includes parameters such as a new Location Area identity (new LAI), an IMSI of the 4G multi-mode card, an MME identity (MME Name), and a Location Update Type (Location Update Type).

S303, the VLR stores the MME information and establishes SGs association with the 4G multimode card under the MME.

S304, VLR initiates the 4G multi-mode card location updating flow of HLR according to the user information and the location area information.

S305, the VLR returns the confirmation information to the MME.

S306, the MME sends an Attach Accept message to the mobile terminal to complete the joint attachment.

S307, when the mobile terminal moves to the edge of the coverage range of the 4G network and the coverage range of the 2G/3G network, the mobile terminal resides in the 2G/3G network.

In the embodiment of the invention, if the LAI of the mobile terminal residing in the 2G/3G network cell is the same as the LAI of the combined attachment, the mobile terminal does not carry out LAU, and the MSC does not delete the SGs interface.

S308, the mobile terminal sends RAU request information to the SGSN.

S309, SGSN sends context request information to MME after receiving RAU request.

S310, the MME sends a request for inquiring the SGs interface state of the mobile terminal to the MSC.

S311, the MSC returns the SGs interface state of the mobile terminal as the activated state.

S312, the MME sends context response information to the SGSN, including an ISR activation instruction.

S313, SGSN sends context response information to MME to clarify ISR activation.

S314, the MME sends the ISR activation information of the mobile terminal to the MSC after receiving the ISR activation information.

The activation information includes: mobile terminal identification, ISR activation and network information on which it resides at the time of activation.

S315, after receiving the ISR activation information of the mobile terminal sent by the MME, if the MSC judges that the mobile terminal activates the ISR in the local network, the MSC starts a timer, and the time length of the timer is the same as the time length of the periodic LAU.

Through the above steps S301-S305, the mobile terminal interacts with the network side, and completes the attach procedure and the ISR activation procedure of the mobile terminal, and the MSC starts a timer when determining that the mobile terminal activates the ISR in the home network, where the duration of the timer is the same as the duration of the periodic LAU, so as to be used in the subsequent processing procedure of the active paging method of the present invention.

In the subsequent processing flow of the paging activation method, before the time-out of the timer, when the mobile terminal has an incoming call, the MSC preferentially pages the LAI, and if the mobile terminal does not respond, the MSC sends the paging to the MME; before the timer is overtime, if the mobile terminal position updating information of the MME is received, the MSC closes the timer and directly sends paging to the MME when an incoming call exists; before the timer is overtime, if the periodic TAU timer is overtime, the mobile terminal carries out LAU and sends an LAU request to the MSC; and the MSC deletes the SGs interface, and the mobile terminal deactivates the ISR. When there is incoming call, MSC pages mobile terminal in 2G/3G network directly; and the MSC directly sends a paging request to the MME when the timer is overtime and has an incoming call, and informs the MME that the paging request does not need to be sent to the SGSN. Therefore, the paging request can be prevented from being carried out in two networks, so that air interface resources are saved, the interactive information between network equipment is reduced, and the paging activation efficiency is improved.

It is to be understood that the invention is not limited to the particular arrangements and instrumentality described in the above embodiments and shown in the drawings. For convenience and brevity of description, detailed description of a known method is omitted here, and for the specific working processes of the system, the module and the unit described above, reference may be made to corresponding processes in the foregoing method embodiments, which are not described herein again.

Fig. 4 shows a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Referring to fig. 4, an embodiment of the present application provides an electronic device, which includes:

one or more processors 401;

a memory 402 having one or more programs stored thereon that, when executed by the one or more processors, cause the one or more processors to implement the active paging method of any of the above;

one or more I/O interfaces 403 coupled between the processor and the memory and configured to enable information interaction between the processor and the memory.

Among them, the processor 401 is a device having data processing capability, which includes but is not limited to a Central Processing Unit (CPU), etc.; memory 402 is a device having data storage capabilities including, but not limited to, random access memory (RAM, more specifically SDRAM, DDR, etc.), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), FLASH memory (FLASH); an I/O interface (read/write interface) 403 is connected between the processor 401 and the memory 402, and can realize information interaction between the processor 401 and the memory 402, which includes but is not limited to a data Bus (Bus) and the like.

In some embodiments, the processor 401, memory 402, and I/O interface 403 are interconnected via a bus, which in turn connects with other components of the computing device.

The present embodiment further provides a computer readable medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the active paging method provided in this embodiment, and in order to avoid repeated descriptions, specific steps of the active paging method are not described herein again.

According to an embodiment of the invention, the process described above with reference to the flow chart may be implemented as a computer software program. For example, embodiments of the invention include a computer program product comprising a computer program tangibly embodied on a machine-readable medium, the computer program comprising program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network, and/or installed from a removable storage medium.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions which, when run on a computer, cause the computer to perform the methods described in the various embodiments above. The procedures or functions according to the embodiments of the invention are brought about in whole or in part when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk), among others.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims

1. An active paging method, comprising:

responding to signaling reduction mechanism ISR activation information of a mobile terminal in an idle state sent by a mobility management entity MME, and judging whether the mobile terminal activates ISR in the network;

starting a timer under the condition that the mobile terminal is judged to be in the state that the network activates ISR, wherein the time length of the timer is the same as the time length of periodic position updating;

and before the timer is overtime, if the mobile terminal has an incoming call, preferentially paging in the location area range indicated by the location area identifier of the mobile terminal.

2. The method of claim 1, wherein before the timer expires, the method further comprises:

and if the mobile terminal does not respond, directly sending a paging request to the MME.

3. The method of claim 1, wherein before the timer expires, the method further comprises:

if the position updating request of the MME is received, closing a timer; and,

and directly sending a paging request to the MME under the condition that the mobile terminal has an incoming call.

4. The method of claim 1, wherein before the timer expires, the method further comprises:

deleting the SGs interface to enable the mobile terminal to activate ISR under the condition that the TAU timer is determined to be overtime and the location updating request of the mobile terminal is received;

and if the mobile terminal has an incoming call, directly paging the mobile terminal in the 2G/3G network.

5. The method of claim 4, wherein after the timer expires, the method further comprises:

and if the mobile terminal has an incoming call, directly sending a paging request to the MME and informing the MME that the paging request does not need to be sent to the SGSN.

6. A storage controller, MSC, comprising:

a judging module, configured to respond to signaling reduction mechanism ISR activation information in an idle state of a mobile terminal sent by a mobility management entity MME, and judge whether the mobile terminal activates ISR in a network;

the timing module is used for starting a timer under the condition that the mobile terminal is judged to be in the state that the network activates the ISR, wherein the time length of the timer is the same as the time length of the periodic position updating;

and the paging module is used for preferentially paging in the location area range indicated by the location area identifier of the mobile terminal before the timer is overtime and if the mobile terminal has an incoming call.

7. The MSC of claim 6,

the paging module is further configured to directly send a paging request to an MME if the mobile terminal does not respond before the timer expires.

8. The MSC of claim 6,

the timing module is further configured to close the timer if a location update request of the MME is received before the timer expires;

the paging module is further configured to directly send a paging request to an MME when the mobile terminal has an incoming call.

9. The MSC of claim 6,

a deleting module, configured to delete the SGs interface to enable the mobile terminal to activate ISR when the timer is determined to be overtime and a location update request of the mobile terminal is received before the timer is overtime;

the paging module is further configured to directly page the mobile terminal in the 2G/3G network if the mobile terminal has an incoming call.

10. The MSC of claim 6,

the paging module is further configured to, after the timer expires, directly send a paging request to the MME if the mobile terminal has an incoming call, and notify the MME that the MME does not need to send the paging request to the SGSN.