CN105827786B - The multimode mutual operation method and device of double-standby terminal - Google Patents

Abstract

The present invention provides the multimode mutual operation methods and device of a kind of double-standby terminal, belong to mobile communication field.Wherein, the multimode mutual operation method of the double-standby terminal includes: judgment step, judges the packet switched ps domain status of double-standby terminal；Processing step; when the ps domain of the double-standby terminal is in connected state, the double-standby terminal the first multimode interoperability decision parameter according to the pre-stored data for carrying out mode conversion is converted to be attached mode of the ps domain from the first wireless network to second wireless network under state.According to the technical solution of the present invention, it when the ps domain of double-standby terminal carries out mode conversion, can reduce interoperability time delay, improve data service interoperability experience, and ensure the stability of CS domain business.

Description

Multi-mode interoperability method and device for dual standby terminal

technical field

The present invention relates to the field of mobile communications, in particular to a multi-mode interoperability method and device for dual standby terminals.

Background technique

LTE (Long Term Evolution, Long Term Evolution), as a follow-up evolution technology of 3G (3rd Generation, the third generation of mobile communication technology), is recognized by the industry as the The evolution direction of next-generation mobile communications. However, the LTE network is based on an all-IP (Internet Protocol, Internet Protocol) architecture, and can only provide VoIP (Voice over Internet Protocol, Internet Protocol-based Voice) services based on the packet switching (PS) domain; considering the LTE network Continuous coverage from small to large is a gradual process. Therefore, operators usually choose CSFB (Circuit Switch Fall Back, circuit switched domain fall back) or multi-mode dual-standby terminals as the LTE transition voice solution in the initial stage of the network to cope with LTE. The target voice solution VoLTE (Voice over LTE, LTE-based voice) matures before users want to use voice services through LTE terminals.

Regardless of whether it is a CSFB or a multi-mode dual-standby terminal, the core idea of the LTE transition voice solution is to provide users with voice services based on the traditional 2G (2rd Generation, second-generation mobile communication technology) or 3G circuit-switched domain. The CSFB solution requires the terminal to first stay on the LTE network and carry data services after it is powered on. When there is a demand for voice services, the terminal falls back to the 2G or 3G network to bear, and then returns to the LTE network after the call is over. This solution is a standard solution of 3GPP (The 3rd Generation Partnership Project, 3rd Generation Partnership Project), but it involves a lot of network transformation and optimization requirements, and due to the additional rollback process introduced, it will have a certain impact on the user's voice and data service experience.

The multi-mode dual-standby single-card solution enables the terminal to reside in the circuit switched (CS) domain of the 2G or 3G network and the PS domain of the LTE network at the same time after it is powered on, and can provide users with concurrent services in the 2G or 3G CS domain and the LTE PS domain ; The voice service experience of this solution is the same as that of the existing 2G or 3G network, and there is no additional transformation requirement on the network side, which is convenient for operators to deploy quickly.

Currently, there are the following two types of LTE multi-mode dual-standby terminals (both of the dual-standby terminals support dual-communication of services under two different wireless networks). For type 1 terminals, when the terminal moves from an LTE coverage area to a non-LTE coverage area with only 3G/2G or 2G coverage area, the PS domain of the terminal needs to be converted from LTE (high priority network) to 3G or 2G ( Low priority network, which network to switch to depends on which network the terminal CS domain currently resides on); for type 2 terminals, when the terminal moves from the LTE/3G coverage area to the 2G coverage area, the terminal's The PS domain needs to switch from LTE or 3G (high priority network) to 2G (low priority network).

Among them, type 1 terminals are LTE and 3G/2G multi-mode dual-standby terminals, which need to have the following capabilities:

When there are accessible LTE, 3G, and 2G networks, the terminal can stand by and work in the LTE PS domain and the 3G (or 2G) CS domain at the same time; when there is no accessible LTE network, the terminal needs to support 3G/2G dual Mode single standby mode.

Type 2 terminals are LTE/3G and 2G multi-mode dual-standby terminals and must have the following capabilities:

When there are accessible LTE, 3G, and 2G networks, the terminal can standby and work in the LTE or 3GPS domain and 2GCS domain at the same time, and the PS domain preferentially resides on the LTE network; when there is no accessible LTE network coverage, the terminal It can stand by and work in 3G PS domain and 2G CS domain at the same time; when there is no access to LTE and 3G network coverage, the terminal needs to support 2G single standby mode.

For existing multi-mode dual-standby terminals, when the PS domain is switched from a high-priority network to a low-priority network, the terminal will use the off-network re-search mechanism, which will cause a high delay (about 20s or more) for the transition of the PS domain across standby modes. , and the IP address changes before and after the mode conversion, which affects the user data service experience.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a multi-mode interoperability method and device for dual-standby terminals, which can reduce the interoperability delay, improve the data service interoperability experience when performing mode conversion in the PS domain of the dual-standby terminal, and improve the data service interoperability experience. Ensure the stability of CS domain services.

In order to solve the above-mentioned technical problems, the embodiments of the present invention provide the following technical solutions:

In one aspect, a method for multi-mode interoperability of dual standby terminals is provided, including:

Judging step, judging the state of the packet-switched PS domain of the dual-standby terminal;

Processing step, when the PS domain of the dual-standby terminal is in the connected state, the dual-standby terminal performs the transition from the PS domain to the first multi-mode interoperation decision parameter in the connected state according to the pre-stored first multi-mode interoperation decision parameter for mode conversion. Mode transition of the wireless network to the second wireless network.

Preferably, the processing step further includes: when the PS domain of the dual-standby terminal is in an idle state, the dual-standby terminal determines the parameters according to the first multi-mode interoperation and/or the first wireless network The second multi-mode interoperation decision parameter sent is used to perform mode conversion of the PS domain from the first wireless network to the second wireless network in the idle state.

Preferably, the first wireless network is an LTE network, and the second wireless network is a 3G network or a 2G network;

or,

The first wireless network is an LTE network or a 3G network, and the second wireless network is a 2G network.

Preferably, before the judging step, it also includes:

In the configuration step, the dual-standby terminal configures and stores the first multi-mode interoperation decision parameter, and the first multi-mode interoperation decision parameter includes at least the first local system reselection decision used for making the local system reselection decision a threshold, a first different-system reselection decision threshold and a first reselection delay time for performing the different-system reselection decision.

Preferably, the first local system reselection decision threshold is this system minimum access level+M;

The first different system reselection decision threshold is the first preset value, or the minimum access level of the different system+N, or the reselection decision threshold of the different system to the lower priority system+P;

The first reselection delay time is the reselection delay time in the system delivered by the network side, or the second preset value;

Among them, M, N and P are preset redundant values.

Preferably, when the PS domain of the dual-standby terminal is in an idle state, the dual-standby terminal determines the parameter according to the first multi-mode interoperation and/or the second multi-mode interoperability issued by the first wireless network. The step of operating the decision parameter to perform mode conversion of the PS domain from the first wireless network to the second wireless network in the idle state includes:

When the second multi-mode interoperation decision parameter does not include the second local system reselection decision threshold, the second different system reselection decision threshold and the second reselection delay time, the dual-standby terminal uses the first The multi-mode interoperation decision parameter is used to perform mode conversion of the PS domain from the first wireless network to the second wireless network in the idle state;

When the second multi-mode interoperation decision parameter includes a second local system reselection decision threshold, and the second local system reselection decision threshold is greater than the preset threshold S, the dual-standby terminal uses the second local system reselection decision threshold. A multi-mode interoperation decision parameter to perform mode conversion of the PS domain from the first wireless network to the second wireless network in the idle state;

When the second multi-mode interoperation decision parameter includes a second local system reselection decision threshold, and the second local system reselection decision threshold is less than or equal to a preset threshold S, it is determined that the second multi-mode interoperability Whether the operation decision parameter also includes the second inter-system reselection decision threshold and the second reselection delay time; if the second multi-mode interoperation decision parameter also includes the second inter-system reselection decision threshold and the second reselection delay time , the dual-standby terminal uses the second multi-mode interoperation decision parameter to perform mode conversion from the first wireless network to the second wireless network in the PS domain in the idle state; if the second multi-mode interoperation decision parameter If the second inter-system reselection decision threshold and/or the second reselection delay time are not included, the dual-standby terminal uses the second multi-mode interoperation decision parameter corresponding to the first multi-mode interoperation decision parameter. The first different system reselection decision threshold and the first reselection delay time are used to perform mode conversion of the PS domain from the first wireless network to the second wireless network in the idle state.

Preferably, the preset threshold S=the minimum access threshold of the first wireless network system+A, where A is a redundancy value, and A is greater than M.

Preferably, A=2M.

Preferably, after the processing step, it also includes:

The mode conversion step, after satisfying the network reselection conditions determined by the first multi-mode interoperation decision parameter and/or the second multi-mode interoperation decision parameter, determine where the circuit-switched CS domain of the dual standby terminal resides A second judgment result is obtained by keeping the wireless network and the state it is in; the dual-standby terminal completes the mode conversion of the PS domain from the first wireless network to the second wireless network according to the second judgment result.

Preferably, the mode conversion step includes:

When the CS domain of the dual-standby terminal is in an idle state or a connected state under the 3G network, the dual-standby terminal implements the mode conversion of the PS domain from the LTE network to the 3G network by updating the RAU method in the routing area;

When the CS domain of the dual-standby terminal is in an idle state under the 2G network, the dual-standby terminal realizes the mode conversion of the PS domain from the LTE network to the 2G network by means of RAU;

When the CS domain of the dual-standby terminal is in the connected state under the 2G network, and the 2G network does not support the dual-transmission mode DTM function, the dual-standby terminal searches on the LTE network or the 3G network and tries to camp on it. After the CS domain of the dual standby terminal enters the idle state, if there is no LTE network or a 3G network cell to camp on, the mode conversion of the PS domain from the LTE network or the 3G network to the 2G network is realized by the RAU method;

When the CS domain of the dual-standby terminal is in the connected state under the 2G network and the 2G network supports the DTM function, the dual-standby terminal realizes the mode conversion of the PS domain from the LTE network or the 3G network to the 2G network through the RAU method .

The embodiment of the present invention also provides a multi-mode interoperability device for dual standby terminals, including:

The judgment module 20 is used for judging the state of the packet-switched PS domain of the dual-standby terminal;

The processing module is configured to, when the PS domain of the dual-standby terminal is in the connected state, perform the transition of the PS domain from the first wireless network to the connected state according to the pre-stored first multi-mode interoperation decision parameter for mode conversion. Mode switching of the second wireless network.

Preferably, the processing module is further configured to, when the PS domain of the dual-standby terminal is in an idle state, according to the first multi-mode interoperation decision parameter and/or the second multi-mode data sent by the first wireless network The mode interoperation decision parameter is used to perform mode conversion of the PS domain from the first wireless network to the second wireless network in the idle state.

Preferably, the first wireless network is an LTE network, and the second wireless network is a 3G network or a 2G network;

or,

The first wireless network is an LTE network or a 3G network, and the second wireless network is a 2G network.

Preferably, the device further comprises:

A configuration module, configured to configure and store the first multi-mode interoperability decision parameter, where the first multi-mode interoperability decision parameter at least includes a first local system reselection decision threshold for making a local system reselection decision, a The first different system reselection decision threshold and the first reselection delay time are used to perform the different system reselection decision.

Preferably, the first local system reselection decision threshold is this system minimum access level+M;

The first different system reselection decision threshold is the first preset value, or the minimum access level of the different system+N, or the reselection decision threshold of the different system to the lower priority system+P;

The first reselection delay time is the reselection delay time in the system delivered by the network side, or the second preset value;

Among them, M, N and P are preset redundant values.

Preferably, when the PS domain of the dual-standby terminal is in an idle state, the processing module may, according to the first multi-mode interoperation decision parameter and/or the second multi-mode interoperation issued by the first wireless network When determining the parameters to perform the mode transition of the PS domain from the first wireless network to the second wireless network in the idle state:

When the second multi-mode interoperation decision parameter does not include the second local system reselection decision threshold, the second different system reselection decision threshold and the second reselection delay time, the first multi-mode interoperation decision is used parameters to perform mode conversion of the PS domain from the first wireless network to the second wireless network in the idle state;

When the second multi-mode interoperation decision parameter includes a second local system reselection decision threshold, and the second local system reselection decision threshold is greater than the preset threshold S, use the first multi-mode interoperation The decision parameter is used to perform mode conversion of the PS domain from the first wireless network to the second wireless network in the idle state;

When the second multi-mode interoperation decision parameter includes a second local system reselection decision threshold, and the second local system reselection decision threshold is less than or equal to a preset threshold S, it is determined that the second multi-mode interoperability Whether the operation decision parameter also includes the second inter-system reselection decision threshold and the second reselection delay time; if the second multi-mode interoperation decision parameter also includes the second inter-system reselection decision threshold and the second reselection delay time , then use the second multi-mode interoperability decision parameter to perform mode conversion of the PS domain from the first wireless network to the second wireless network in the idle state; if the second multi-mode interoperability decision parameter does not include the second The system reselection decision threshold and/or the second reselection delay time, then use the second multi-mode interoperation decision parameter and the first multi-mode interoperation decision parameter corresponding to the first inter-system reselection decision threshold and The first reselection delay time is used to perform mode transition of the PS domain from the first wireless network to the second wireless network in the idle state.

Preferably, the preset threshold S=the minimum access threshold of the first wireless network system+A, where A is a redundancy value, and A is greater than M.

Preferably, A=2M.

Preferably, the device further comprises:

A mode conversion module, configured to determine the circuit-switched CS domain of the dual-standby terminal after satisfying the network reselection conditions determined by the first multi-mode interoperation decision parameter and/or the second multi-mode interoperation decision parameter A second judgment result is obtained based on the wireless network where it resides and the state it is in; the mode conversion of the PS domain from the first wireless network to the second wireless network is completed according to the second judgment result.

Preferably, the mode conversion module is specifically used for:

When the CS domain of the dual standby terminal is in an idle state or a connected state under the 3G network, the mode conversion of the PS domain from the LTE network to the 3G network is realized by updating the RAU in the routing area;

When the CS domain of the dual-standby terminal is in an idle state under the 2G network, the mode conversion of the PS domain from the LTE network to the 2G network is realized by means of RAU;

When the CS domain of the dual-standby terminal is in the connected state under the 2G network, and the 2G network does not support the dual-transmission mode DTM function, search on the LTE network or 3G network and try to camp on the dual-standby terminal. After the CS domain enters the idle state, if there is no LTE network or 3G network cell to camp on, the mode conversion of the PS domain from the LTE network or the 3G network to the 2G network can be realized through the RAU method;

When the CS domain of the dual-standby terminal is in the connected state under the 2G network and the 2G network supports the DTM function, the mode conversion of the PS domain from the LTE network or the 3G network to the 2G network is realized through the RAU method.

Embodiments of the present invention have the following beneficial effects:

In the above solution, when the PS domain of the dual-standby terminal is in the connected state, the dual-standby terminal performs the transition from the PS domain to the first wireless network in the connected state according to the pre-stored first multi-mode interoperation decision parameter for mode conversion. In the mode conversion of the second wireless network, through the technical solution of the present invention, when the PS domain of the dual standby terminal is in the connected state, there is no need to wait for the first wireless network to configure and deliver the multi-mode interoperation decision parameters, which can reduce the interoperation delay , improving the data service interoperability experience; in addition, there is no need for the second wireless network to assist in the measurement of different systems, ensuring the stability of the CS domain service of the dual-standby terminal.

Description of drawings

FIG. 1 is a schematic flowchart of a multi-mode interoperation method for a dual standby terminal according to an embodiment of the present invention;

FIG. 2 is a structural block diagram of a multi-mode interoperation method for a dual standby terminal according to an embodiment of the present invention.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following detailed description will be given in conjunction with the accompanying drawings and specific embodiments.

The embodiments of the present invention provide a multi-mode interoperability method for dual-standby terminals, aiming at the problems in the prior art that the PS domain cross-standby mode transition delay is too high, and the IP address changes before and after the mode transition, thereby affecting user data service experience. And the device can reduce the interoperation delay, improve the data service interoperation experience, and ensure the stability of the CS domain service when the mode conversion is performed in the PS domain of the dual standby terminal.

FIG. 1 is a schematic flowchart of a multi-mode interoperation method for a dual standby terminal according to an embodiment of the present invention. As shown in FIG. 1 , this embodiment includes:

Judging step 101, judging the state of the packet-switched PS domain of the dual-standby terminal;

Processing step 102, when the PS domain of the dual-standby terminal is in the connected state, the dual-standby terminal performs the transition from the PS domain in the connected state to the first multi-mode interoperation decision parameter pre-stored for mode conversion. Mode conversion of a wireless network to a second wireless network.

In the multi-mode interoperation method of the dual-standby terminal of the present invention, when the PS domain of the dual-standby terminal is in the connected state, the dual-standby terminal performs the connection state according to the pre-stored first multi-mode interoperation decision parameter for mode conversion. Under the mode conversion of the PS domain from the first wireless network to the second wireless network, through the technical scheme of the present invention, when the PS domain of the dual standby terminal is in the connected state, there is no need to wait for the first wireless network to configure and deliver multi-mode interoperability The decision parameter can reduce the interoperation delay and improve the data service interoperation experience; in addition, there is no need for the second wireless network to assist in the inter-system measurement, which ensures the stability of the dual-standby terminal CS domain service.

Preferably, in another embodiment of the present invention, on the basis of the above steps, the processing step further includes: when the PS domain of the dual-standby terminal is in an idle state, The mode interoperation decision parameter and/or the second multi-mode interoperation decision parameter delivered by the first wireless network is used to perform mode conversion of the PS domain from the first wireless network to the second wireless network in the idle state.

Specifically, the first wireless network is an LTE network, and the second wireless network is a 3G network or a 2G network;

or,

The first wireless network is an LTE network or a 3G network, and the second wireless network is a 2G network.

Preferably, in another embodiment of the present invention, on the basis of the above steps, the judging step further includes:

In the configuration step, the dual-standby terminal configures and stores the first multi-mode interoperation decision parameter, and the first multi-mode interoperation decision parameter includes at least the first local system reselection decision used for making the local system reselection decision a threshold, a first different-system reselection decision threshold and a first reselection delay time for performing the different-system reselection decision.

Preferably, the first local system reselection decision threshold is this system minimum access level+M;

The first different system reselection decision threshold is the first preset value, or the minimum access level of the different system+N, or the reselection decision threshold of the different system to the lower priority system+P;

The first reselection delay time is the reselection delay time in the system delivered by the network side, or the second preset value;

Among them, M, N and P are preset redundant values.

Preferably, in another embodiment of the present invention, on the basis of including the above steps, when the PS domain of the dual-standby terminal is in an idle state, the dual-standby terminal determines the parameter according to the first multi-mode interoperation and/ Or the second multi-mode interoperation decision parameter issued by the first wireless network to perform the mode conversion step of the PS domain from the first wireless network to the second wireless network in the idle state includes:

When the second multi-mode interoperation decision parameter does not include the second local system reselection decision threshold, the second different system reselection decision threshold and the second reselection delay time, the dual-standby terminal uses the first The multi-mode interoperation decision parameter is used to perform mode conversion of the PS domain from the first wireless network to the second wireless network in the idle state;

When the second multi-mode interoperation decision parameter includes a second local system reselection decision threshold, and the second local system reselection decision threshold is greater than the preset threshold S, the dual-standby terminal uses the second local system reselection decision threshold. A multi-mode interoperation decision parameter to perform mode conversion of the PS domain from the first wireless network to the second wireless network in the idle state;

When the second multi-mode interoperation decision parameter includes a second local system reselection decision threshold, and the second local system reselection decision threshold is less than or equal to a preset threshold S, it is determined that the second multi-mode interoperability Whether the operation decision parameter also includes the second inter-system reselection decision threshold and the second reselection delay time; if the second multi-mode interoperation decision parameter also includes the second inter-system reselection decision threshold and the second reselection delay time , the dual-standby terminal uses the second multi-mode interoperation decision parameter to perform mode conversion from the first wireless network to the second wireless network in the PS domain in the idle state; if the second multi-mode interoperation decision parameter If the second inter-system reselection decision threshold and/or the second reselection delay time are not included, the dual-standby terminal uses the second multi-mode interoperation decision parameter corresponding to the first multi-mode interoperation decision parameter. The first different system reselection decision threshold and the first reselection delay time are used to perform mode conversion of the PS domain from the first wireless network to the second wireless network in the idle state.

Specifically, the preset threshold S=minimum access threshold of the first wireless network system+A, where A is a redundancy value, and A is greater than M.

Preferably, A=2M.

Preferably, in another embodiment of the present invention, on the basis of the above steps, the processing step further includes:

The mode conversion step, after satisfying the network reselection conditions determined by the first multi-mode interoperation decision parameter and/or the second multi-mode interoperation decision parameter, determine where the circuit-switched CS domain of the dual standby terminal resides A second judgment result is obtained by keeping the wireless network and the state it is in; the dual-standby terminal completes the mode conversion of the PS domain from the first wireless network to the second wireless network according to the second judgment result.

Preferably, the mode conversion step includes:

When the CS domain of the dual-standby terminal is in an idle state or a connected state under the 3G network, the dual-standby terminal implements the mode conversion of the PS domain from the LTE network to the 3G network by updating the RAU method in the routing area;

When the CS domain of the dual-standby terminal is in an idle state under the 2G network, the dual-standby terminal realizes the mode conversion of the PS domain from the LTE network to the 2G network by means of RAU;

When the CS domain of the dual-standby terminal is in the connected state under the 2G network, and the 2G network does not support the dual-transmission mode DTM function, the dual-standby terminal searches on the LTE network or the 3G network and tries to camp on it. After the CS domain of the dual standby terminal enters the idle state, if there is no LTE network or a 3G network cell to camp on, the mode conversion of the PS domain from the LTE network or the 3G network to the 2G network is realized by the RAU method;

When the CS domain of the dual-standby terminal is in the connected state under the 2G network and the 2G network supports the DTM function, the dual-standby terminal realizes the mode conversion of the PS domain from the LTE network or the 3G network to the 2G network through the RAU method .

An embodiment of the present invention further provides a multi-mode interoperability device for dual standby terminals. As shown in FIG. 2 , this embodiment includes:

The judgment module 20 is used for judging the state of the packet-switched PS domain of the dual-standby terminal;

The processing module 21 is configured to, when the PS domain of the dual-standby terminal is in the connected state, perform the transition from the PS domain to the first wireless network in the connected state according to the pre-stored first multi-mode interoperation decision parameter for mode conversion. Mode transition to the second wireless network.

The multi-mode interoperation device of the dual-standby terminal of the present invention, when the PS domain of the dual-standby terminal is in the connected state, performs the connection state according to the first multi-mode interoperation judgment parameter pre-stored by the dual-standby terminal for mode conversion. Under the mode conversion of the PS domain from the first wireless network to the second wireless network, through the technical scheme of the present invention, when the PS domain of the dual standby terminal is in the connected state, there is no need to wait for the first wireless network to configure and deliver multi-mode interoperability The decision parameter can reduce the interoperation delay and improve the data service interoperation experience; in addition, there is no need for the second wireless network to assist in the inter-system measurement, which ensures the stability of the dual-standby terminal CS domain service.

Preferably, the processing module 21 is further configured to, when the PS domain of the dual standby terminal is in an idle state, according to the first multi-mode interoperation decision parameter and/or the second data sent by the first wireless network The multi-mode interoperation decision parameter is used to perform mode conversion of the PS domain from the first wireless network to the second wireless network in the idle state.

Preferably, the first wireless network is an LTE network, and the second wireless network is a 3G network or a 2G network;

or,

The first wireless network is an LTE network or a 3G network, and the second wireless network is a 2G network.

Preferably, the device further comprises:

A configuration module, configured to configure and store the first multi-mode interoperability decision parameter, where the first multi-mode interoperability decision parameter at least includes a first local system reselection decision threshold for making a local system reselection decision, a The first different system reselection decision threshold and the first reselection delay time are used to perform the different system reselection decision.

Preferably, the first local system reselection decision threshold is the local system minimum access level+M;

The first different system reselection decision threshold is the first preset value, or the minimum access level of the different system+N, or the reselection decision threshold of the different system to the lower priority system+P;

The first reselection delay time is the reselection delay time in the system delivered by the network side, or the second preset value;

Among them, M, N and P are preset redundant values.

Preferably, when the PS domain of the dual-standby terminal is in an idle state, the processing module 21 determines the parameters according to the first multi-mode interoperation decision parameter and/or the second multi-mode interoperation delivered by the first wireless network. When operating the decision parameters to perform mode transition of the PS domain from the first wireless network to the second wireless network in the idle state:

When the second multi-mode interoperation decision parameter does not include the second local system reselection decision threshold, the second different system reselection decision threshold and the second reselection delay time, the first multi-mode interoperation decision is used parameters to perform mode conversion of the PS domain from the first wireless network to the second wireless network in the idle state;

When the second multi-mode interoperation decision parameter includes a second local system reselection decision threshold, and the second local system reselection decision threshold is greater than the preset threshold S, use the first multi-mode interoperation The decision parameter is used to perform mode conversion of the PS domain from the first wireless network to the second wireless network in the idle state;

When the second multi-mode interoperation decision parameter includes a second local system reselection decision threshold, and the second local system reselection decision threshold is less than or equal to a preset threshold S, it is determined that the second multi-mode interoperability Whether the operation decision parameter also includes the second inter-system reselection decision threshold and the second reselection delay time; if the second multi-mode interoperation decision parameter also includes the second inter-system reselection decision threshold and the second reselection delay time , then use the second multi-mode interoperability decision parameter to perform mode conversion of the PS domain from the first wireless network to the second wireless network in the idle state; if the second multi-mode interoperability decision parameter does not include the second The system reselection decision threshold and/or the second reselection delay time, then use the second multi-mode interoperation decision parameter and the first multi-mode interoperation decision parameter corresponding to the first inter-system reselection decision threshold and The first reselection delay time is used to perform mode conversion of the PS domain from the first wireless network to the second wireless network in the idle state.

Preferably, the preset threshold S=the minimum access threshold of the first wireless network system+A, where A is a redundancy value, and A is greater than M.

Preferably, A=2M.

Preferably, the device further comprises:

A mode conversion module, configured to determine the circuit-switched CS domain of the dual-standby terminal after satisfying the network reselection conditions determined by the first multi-mode interoperation decision parameter and/or the second multi-mode interoperation decision parameter A second judgment result is obtained based on the wireless network where it resides and the state it is in; the mode conversion of the PS domain from the first wireless network to the second wireless network is completed according to the second judgment result.

Preferably, the mode conversion module is specifically used for:

When the CS domain of the dual standby terminal is in an idle state or a connected state under the 3G network, the mode conversion of the PS domain from the LTE network to the 3G network is realized by updating the RAU in the routing area;

When the CS domain of the dual-standby terminal is in an idle state under the 2G network, the mode conversion of the PS domain from the LTE network to the 2G network is realized by means of RAU;

When the CS domain of the dual-standby terminal is in the connected state under the 2G network, and the 2G network does not support the dual-transmission mode DTM function, search on the LTE network or 3G network and try to camp on the dual-standby terminal. After the CS domain enters the idle state, if there is no LTE network or 3G network cell to camp on, the mode conversion of the PS domain from the LTE network or the 3G network to the 2G network can be realized through the RAU method;

When the CS domain of the dual-standby terminal is in the connected state under the 2G network and the 2G network supports the DTM function, the mode conversion of the PS domain from the LTE network or the 3G network to the 2G network is realized through the RAU method.

The multi-mode interoperation method of the dual standby terminal of the present invention is described in detail below with reference to specific embodiments:

The multi-mode interoperation method of the dual-standby terminal of the present invention is mainly aimed at the cross-standby mode conversion of the PS domain from a high-priority network to a low-priority network. The LTE network is the high-priority network, and the 3G network is the low-priority network; when the dual-standby terminal is under the LTE network and the 2G network at the same time, the LTE network is the high-priority network, and the 2G network is the low-priority network; When the dual standby terminal is under the 3G network and the 2G network at the same time, the 3G network is the high-priority network, and the 2G network is the low-priority network.

The present invention pre-stores the first multi-mode interoperation decision parameter on the dual standby terminal side, and the first multi-mode interoperation decision parameter includes the local system reselection decision threshold, the different system reselection decision threshold, the reselection delay time, etc. When the PS domain of the dual-standby terminal is in the connected state, the dual-standby terminal performs mode conversion of the PS domain from the first wireless network to the second wireless network in the connected state according to the pre-stored first multi-mode interoperation decision parameter. When the PS domain of the terminal is in the idle state, if the mature multi-mode interoperability decision parameter is configured on the network side, that is, the second multi-mode interoperability decision parameter, the dual-standby terminal must be able to read and use the network to deliver the second multi-mode interoperability decision parameter. The ability to operate decision parameters (including the reselection decision threshold of the local system, the reselection decision threshold of different systems, and the reselection delay time, etc.). Considering that after the introduction of LTE, the network needs to be compatible with VoLTE, CSFB and multi-mode dual-standby single-card three types of dual-standby terminals, and different types of dual-standby terminals have different requirements for multi-network interoperability parameter configuration. For the paging success rate of the terminal under the LTE network, the network side needs to configure the re-selection decision threshold of the system to be conservative, but the multi-mode dual-standby terminal only carries data services under the LTE network, and should try to stay on the LTE network so that the Provide users with a better data transfer rate. Based on this, a threshold for judging whether to use the first multi-mode interoperation decision parameter of the dual-standby terminal or the second multi-mode interoperation decision parameter delivered by the network side can be preset in the multi-mode dual-standby terminal, so that the multi-mode dual-standby terminal can be The terminal can maximize its advantages under various network interoperability configurations.

The first multi-mode interoperation decision parameters preset by the dual-standby terminal are as follows:

The reselection decision threshold of this system (dBm) = the minimum access level of this system Qrxlevmin1+M (M can be configured, and the redundancy value needs to be configured in the dual-standby terminal before leaving the factory), which is suitable for LTE and 3G systems;

Different system reselection decision threshold (dBm): The preset fixed value of dual standby terminals can be used (combined with the field measurement experience, suitable for 3G and 2G systems), or the minimum access level of different systems Qrxlevmin2+N (N needs to be configurable) , the redundancy value needs to be configured in the dual standby terminal before leaving the factory, which is suitable for 3G and 2G systems), or the reselection judgment threshold + P (P needs to be configurable, and the dual standby terminal needs to be configured in the factory), or use the different system to the lower priority system. Configure redundancy value, suitable for 3G system)

Reselection delay time (s): T, which can be the reselection delay time in the system delivered by the network side, or a fixed value customized by the dual-standby terminal. T needs to be configurable, and the dual-standby terminal must be configured with redundancy before leaving the factory. residual value.

In addition, the threshold defined by the dual standby terminal is S=Qrxlevmin3+A, where Qrxlevmin3 is the minimum access threshold of the network where the high-priority network is located. A needs to be configurable, and A should be greater than M. A=2M is recommended. Dual standby terminals are configured with redundant values. When the system reselection decision threshold delivered by the network side is greater than the threshold, the dual-standby terminal uses the first multi-mode interoperation decision parameter pre-stored by itself to perform mode conversion; when the system reselection decision threshold delivered by the network side is less than or equal to At this threshold, the dual-standby terminal uses the second multi-mode interoperation decision parameter delivered by the network side to perform mode conversion, and at this time, the first multi-mode interoperation decision parameter preset by the dual-standby terminal is invalid.

The multi-mode interoperation method of the dual-standby terminal of the present invention is described below in combination with different scenarios according to the different states of the dual-standby terminal PS domain and the CS domain.

Scenario 1: The PS domain of the dual-standby terminal is in an idle state and is in a high-priority network, and the CS domain of the dual-standby terminal is in an idle state or a voice service connection state.

The multi-mode interoperability method for dual standby terminals in this scenario includes the following steps:

(1) First, the dual-standby terminal needs to determine whether the network where the high-priority network is located sends multi-mode interoperation decision parameters, including: the reselection decision threshold of the local system, the reselection decision threshold of different systems, and the reselection delay time to decide whether to The PS domain mode conversion is performed using the multi-mode interoperation decision parameter preset by the dual-standby terminal or the multi-mode interoperation decision parameter delivered by the network side. The multimode interoperation decision parameter preset by the dual standby terminal is the above-mentioned first multimode interoperation decision parameter, and the multimode interoperation decision parameter delivered by the network side is the above-mentioned second multimode interoperation decision parameter.

A. If the dual-standby terminal does not obtain the above three parameters from the system broadcast message sent by the network side, it means that mature multi-mode interoperability judgment parameters are not configured on the network side, then enable the multi-mode interoperability judgment preset by the dual-standby terminal parameter;

B. If the dual standby terminal obtains the above three parameters from the system broadcast message sent by the network side, and the system reselection judgment threshold is less than or equal to the threshold S, the multi-mode interoperability judgment parameters sent by the network side are used. Perform PS domain mode conversion;

C. If the dual-standby terminal obtains the above three parameters from the system broadcast message sent by the network side, but the re-selection judgment threshold of the system is greater than the threshold S, the multi-mode interoperability judgment parameters preset by the dual-standby terminal are enabled. Perform PS domain mode conversion;

D. If the dual-standby terminal only obtains some of the above three parameters from the system broadcast message sent by the network side, and the reselection decision threshold of the system is less than or equal to the threshold S, the parameters sent by the network side are used. At the same time, for other parameters not read from the system broadcast message sent by the network side, it is necessary to use the parameters preset by the dual standby terminal to complete the PS domain mode conversion.

(2) Determine whether to perform cross-to-be interoperability.

A. After the system reselection decision threshold and reselection delay time of the high-priority network meet the requirements, the dual-standby terminal realizes the mode conversion of the PS domain from the high-priority network to the low-priority network by means of RAU;

B. After the local system reselection decision threshold of the high-priority network, the inter-system reselection decision threshold of the low-priority network, and the reselection delay time meet the requirements, the PS domain is switched from the high-priority network to the high-priority network by RAU. Mode transitions for low-priority networks.

(3) The dual-standby terminal decides how to perform mode conversion in combination with the network mode and the state in which the CS domain of the low-priority network resides.

A. If the CS domain is in an idle state under the 3G network at this time, after satisfying the reselection conditions, the dual-standby terminal needs to realize the mode conversion of the PS domain from the LTE network to the 3G network through the RAU method;

B. If the CS domain is in the voice service connection state under the 3G network at this time, the dual-standby terminal needs to realize the mode conversion from the LTE network to the 3G network in the PS domain through the RAU method after satisfying the reselection conditions;

C. If the CS domain is in an idle state under the 2G network at this time, after satisfying the reselection conditions, the dual-standby terminal needs to realize the mode conversion of the PS domain from the LTE network to the 2G network through the RAU method;

D. If the CS domain is in the voice service connection state under the 2G network at this time, and the 2G network does not support the DTM (DualTransfer Mode, dual transfer mode) function, even if the reselection conditions are met, the dual-standby terminal will not execute the PS domain from the LTE network. To switch to 2G network mode, you need to search and try to camp on the LTE (or 3G, depending on the dual-standby terminal type) network. After the CS voice service is disconnected and enters the idle state, if the dual-standby terminal has no LTE (or 3G) The network cell can reside, and then initiate the RAU to realize the mode conversion of the PS domain from the LTE network to the 2G network;

E. If the CS domain is in the voice service connection state under the 2G network at this time, and both the dual-standby terminal and the 2G network support the DTM function, then the dual-standby terminal will execute RAU after the reselection conditions are met, so as to realize the transition of the PS domain from the LTE network to the 2G network. Mode switching of the network.

Scenario 2: The PS domain of the dual-standby terminal is in a connected state and is in a high-priority network, and the CS domain of the dual-standby terminal is in an idle state or a voice service connected state.

The multi-mode interoperability method for dual standby terminals in this scenario includes the following steps:

(1) When the PS domain of the dual-standby terminal is in the connected state and in the high-priority network, the multi-mode interoperability judgment parameters pre-stored by the dual-standby terminal need to be used to realize the PS domain from the high-priority network to the low-priority network. Mode conversion. The multimode interoperation decision parameter preset by the dual standby terminal is the above-mentioned first multimode interoperation decision parameter, and the multimode interoperation decision parameter delivered by the network side is the above-mentioned second multimode interoperation decision parameter.

(2) Determine whether to perform cross-to-be interoperability.

A. After the system reselection decision threshold and reselection delay time of the high-priority network meet the requirements, the dual-standby terminal realizes the mode conversion of the PS domain from the high-priority network to the low-priority network by means of RAU;

B. After the local system reselection decision threshold of the high-priority network, the inter-system reselection decision threshold of the low-priority network, and the reselection delay time meet the requirements, the PS domain is switched from the high-priority network to the high-priority network by RAU. Mode transitions for low-priority networks.

(3) The dual-standby terminal decides how to perform mode conversion in combination with the network mode and the state in which the CS domain of the low-priority network resides.

A. If the CS domain is in an idle state under the 3G network at this time, after satisfying the reselection conditions, the dual-standby terminal needs to realize the mode conversion of the PS domain from the LTE network to the 3G network through the RAU method;

B. If the CS domain is in the voice service connection state under the 3G network at this time, the dual-standby terminal needs to realize the mode conversion from the LTE network to the 3G network in the PS domain through the RAU method after satisfying the reselection conditions;

C. If the CS domain is in an idle state under the 2G network at this time, after satisfying the reselection conditions, the dual-standby terminal needs to realize the mode conversion of the PS domain from the LTE network to the 2G network through the RAU method;

D. If the CS domain is in the voice service connection state under the 2G network at this time, and the 2G network does not support the DTM (DualTransfer Mode, dual transfer mode) function, even if the reselection conditions are met, the dual-standby terminal will not execute the PS domain from the LTE network. To switch to 2G network mode, you need to search and try to camp on the LTE (or 3G, depending on the dual-standby terminal type) network. After the CS voice service is disconnected and enters the idle state, if the dual-standby terminal has no LTE (or 3G) The network cell can reside, and then initiate the RAU to realize the mode conversion of the PS domain from the LTE network to the 2G network;

E. If the CS domain is in the voice service connection state under the 2G network at this time, and both the dual-standby terminal and the 2G network support the DTM function, then the dual-standby terminal will execute RAU after the reselection conditions are met, so as to realize the transition of the PS domain from the LTE network to the 2G network. Mode switching of the network.

The present invention provides a multi-mode interoperability judgment parameter determination method for switching the PS domain of a dual-standby terminal from a high-priority network to a low-priority network. The storage is also the threshold value S of the multi-mode interoperability decision parameter delivered by the network side. When the PS domain of the dual-standby terminal is in the connected state, the dual-standby terminal performs the PS domain conversion in the connected state according to the pre-stored multi-mode interoperation decision parameters. Mode conversion from high-priority network to low-priority data; when the PS domain of the dual-standby terminal is in an idle state, if the dual-standby terminal only obtains some parameters required for interoperation from the system broadcast message sent by the network side, And the re-selection decision threshold of this system meets the threshold requirements for enabling network-side delivery parameters, then use this part of the network-delivered parameters, and at the same time, for other parameters that are not read from the system broadcast message delivered by the network side, it is necessary to use The pre-stored parameters of the dual standby terminal are used together to complete the PS domain mode conversion. Through the technical solution of the present invention, when the PS domain of the dual standby terminal is in the connected state, there is no need to wait for the network side to configure and deliver multi-mode interoperability decision parameters, which can reduce the interoperability delay and improve the data service interoperability experience; It does not require the assistance of the network side to perform inter-system measurement, which ensures the stability of the CS domain service of the dual-standby terminal.

Many of the functional components described in this specification are referred to as modules in order to more particularly emphasize the independence of their implementation.

In this embodiment of the present invention, the modules may be implemented in software so as to be executed by various types of processors. For example, an identified executable code module may comprise one or more physical or logical blocks of computer instructions, which may be structured as objects, procedures, or functions, for example. Nonetheless, the executable code of the identified modules need not be physically located together, but may include distinct instructions stored in distinct entities that, when logically combined, constitute the module and achieve the module's stated purpose .

In practice, an executable code module may be a single instruction or many instructions, and may even be distributed over multiple different code segments, among different programs, and across multiple memory devices. Likewise, operational data may be identified within modules, and may be implemented in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations (including over different storage devices), and may exist at least in part only as electronic signals on a system or network.

When a module can be implemented by software, considering the level of existing hardware technology, a module that can be implemented by software, regardless of cost, can build corresponding hardware circuits to implement corresponding functions. The hardware circuits include conventional very large scale integration (VLSI) circuits or gate arrays as well as off-the-shelf semiconductors such as logic chips, transistors, or other discrete components. A module may also be implemented in programmable hardware devices, such as field programmable gate arrays, programmable array logic, programmable logic devices, and the like.

In the method embodiments of the present invention, the sequence numbers of the steps cannot be used to define the sequence of the steps. For those of ordinary skill in the art, the sequence of the steps can be changed without creative work. It also falls within the protection scope of the present invention.

The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (18)

1. A multi-mode interoperation method of a dual-standby terminal is characterized by comprising the following steps:

judging, namely judging the state of a Packet Switched (PS) domain of the dual-standby terminal;

a processing step, when the PS domain of the dual-standby terminal is in a connected state, the dual-standby terminal performs mode conversion of the PS domain from a first wireless network to a second wireless network in the connected state according to a first multi-mode interoperation decision parameter which is stored in advance and used for performing the mode conversion;

the judging step further comprises the following steps:

and a configuration step, wherein the dual standby terminal configures and stores the first multi-mode interoperation decision parameter, and the first multi-mode interoperation decision parameter at least comprises a first local system reselection decision threshold for performing local system reselection decision, a first inter-system reselection decision threshold for performing inter-system reselection decision, and first reselection delay time.

2. A multi-mode interoperation method of a dual standby terminal according to claim 1, wherein the processing step further comprises: and when the PS domain of the dual-standby terminal is in an idle state, the dual-standby terminal performs mode conversion of the PS domain from the first wireless network to the second wireless network in the idle state according to the first multi-mode interoperation decision parameter and/or a second multi-mode interoperation decision parameter issued by the first wireless network.

3. A multi-mode interoperation method of a dual standby terminal according to claim 1 or 2, wherein the first wireless network is an LTE network, and the second wireless network is a 3G network or a 2G network;

or,

the first wireless network is an LTE network or a 3G network, and the second wireless network is a 2G network.

4. A multi-mode interoperation method of a dual standby terminal according to claim 1,

the first system reselection decision threshold is the minimum access level + M of the system;

the first inter-system reselection decision threshold is a first preset value, or the minimum access level + N of the inter-system, or the reselection decision threshold + P from the inter-system to a system with lower priority;

the first reselection delay time is reselection delay time in the system issued by the network side or a second preset value;

wherein M, N and P are preset redundancy values.

5. The multi-mode interoperation method of a dual-standby terminal according to claim 4, wherein when the PS domain of the dual-standby terminal is in an idle state, the step of performing, by the dual-standby terminal, mode conversion of the PS domain from a first wireless network to a second wireless network in the idle state according to the first multi-mode interoperation decision parameter and/or a second multi-mode interoperation decision parameter issued by the first wireless network comprises:

when the second multi-mode interoperation decision parameter does not include a second local system reselection decision threshold, a second inter-system reselection decision threshold and a second reselection delay time, the dual standby terminal uses the first multi-mode interoperation decision parameter to perform mode switching of the PS domain from the first wireless network to the second wireless network in an idle state;

when the second multi-mode interoperation decision parameter comprises a second system reselection decision threshold and the second system reselection decision threshold is larger than a preset threshold S, the dual standby terminal uses the first multi-mode interoperation decision parameter to perform mode conversion of a PS domain from a first wireless network to a second wireless network in an idle state;

when the second multi-mode interoperation decision parameter comprises a second local system reselection decision threshold and the second local system reselection decision threshold is less than or equal to a preset threshold S, judging whether the second multi-mode interoperation decision parameter further comprises a second inter-system reselection decision threshold and a second reselection delay time; if the second multi-mode interoperation decision parameter further comprises a second inter-system reselection decision threshold and a second reselection delay time, the dual standby terminal performs mode conversion of the PS domain from the first wireless network to the second wireless network in an idle state by using the second multi-mode interoperation decision parameter; and if the second multi-mode interoperation decision parameter does not include a second inter-system reselection decision threshold and/or a second reselection hysteresis time, the dual standby terminal performs mode switching of the PS domain from the first wireless network to the second wireless network in an idle state by using the second multi-mode interoperation decision parameter and the corresponding first inter-system reselection decision threshold and the corresponding first reselection hysteresis time in the first multi-mode interoperation decision parameter.

6. A multi-mode interoperation method of a dual standby terminal according to claim 5, wherein the preset threshold S is a system minimum access threshold + A of the first wireless network, where A is a redundancy value and A is greater than M.

7. A multi-mode interoperation method of a dual standby terminal according to claim 6, wherein A-2M.

8. A multi-mode interoperation method of a dual standby terminal according to claim 2, wherein the processing step is followed by further comprising:

a mode switching step, after network reselection conditions judged by the first multi-mode interoperation judgment parameter and/or the second multi-mode interoperation judgment parameter are met, judging a resident wireless network and a resident state of a Circuit Switching (CS) domain of the dual-standby terminal to obtain a second judgment result; and the dual-standby terminal completes the mode conversion of the PS domain from the first wireless network to the second wireless network according to the second judgment result.

9. A multi-mode interoperation method of a dual standby terminal according to claim 8, wherein the mode switching step comprises:

when the CS domain of the dual-standby terminal is in an idle state or a connection state in the 3G network, the dual-standby terminal realizes mode conversion of the PS domain from the LTE network to the 3G network in a routing area update RAU mode;

when the CS domain of the dual-standby terminal is in an idle state in the 2G network, the dual-standby terminal realizes mode conversion of the PS domain from the LTE network to the 2G network in an RAU mode;

when the CS domain of the dual-standby terminal is in a connected state in a 2G network and the 2G network does not support a dual-transmission mode DTM function, the dual-standby terminal searches in an LTE network or a 3G network and tries to reside, and after the CS domain of the dual-standby terminal enters an idle state, if no LTE network or 3G network cell can reside, mode conversion of a PS domain from the LTE network or the 3G network to the 2G network is realized in an RAU mode;

and when the CS domain of the dual-standby terminal is in a connected state in the 2G network and the 2G network supports the DTM function, the dual-standby terminal realizes mode conversion of the PS domain from the LTE network or the 3G network to the 2G network in an RAU mode.

10. A multi-mode interoperation device of a dual standby terminal, comprising:

the judging module is used for judging the state of a Packet Switching (PS) domain of the dual-standby terminal;

the processing module is used for carrying out mode conversion of the PS domain from the first wireless network to the second wireless network in the connection state according to a first multi-mode interoperation judgment parameter which is stored in advance and used for carrying out mode conversion when the PS domain of the dual-standby terminal is in the connection state;

and the configuration module is used for configuring and storing the first multi-mode interoperation judgment parameter, wherein the first multi-mode interoperation judgment parameter at least comprises a first local system reselection judgment threshold used for performing local system reselection judgment, a first inter-system reselection judgment threshold used for performing inter-system reselection judgment and first reselection delay time.

11. The multi-mode interworking apparatus of a dual standby terminal according to claim 10, wherein the processing module is further configured to perform mode switching of the PS domain from the first wireless network to the second wireless network in an idle state according to the first multi-mode interworking decision parameter and/or a second multi-mode interworking decision parameter issued by the first wireless network when the PS domain of the dual standby terminal is in the idle state.

12. A multi-mode interoperation device of a dual standby terminal according to claim 10 or 11, wherein the first wireless network is an LTE network, and the second wireless network is a 3G network or a 2G network;

or,

the first wireless network is an LTE network or a 3G network, and the second wireless network is a 2G network.

13. A multi-mode interworking apparatus of a dual standby terminal according to claim 10,

the first system reselection decision threshold is the minimum access level + M of the system;

the first inter-system reselection decision threshold is a first preset value, or the minimum access level + N of the inter-system, or the reselection decision threshold + P from the inter-system to a system with lower priority;

the first reselection delay time is reselection delay time in the system issued by the network side or a second preset value;

wherein M, N and P are preset redundancy values.

14. The multi-mode interoperation device of a dual-standby terminal according to claim 13, wherein when the PS domain of the dual-standby terminal is in an idle state, the processing module performs mode switching of the PS domain from a first wireless network to a second wireless network in the idle state according to the first multi-mode interoperation decision parameter and/or a second multi-mode interoperation decision parameter delivered by the first wireless network:

when the second multi-mode interoperation decision parameter does not include a second local system reselection decision threshold, a second inter-system reselection decision threshold and a second reselection delay time, using the first multi-mode interoperation decision parameter to perform mode switching of the PS domain from the first wireless network to the second wireless network in an idle state;

when the second multi-mode interoperation decision parameter comprises a second system reselection decision threshold and the second system reselection decision threshold is larger than a preset threshold S, using the first multi-mode interoperation decision parameter to perform mode conversion of the PS domain from the first wireless network to the second wireless network in an idle state;

when the second multi-mode interoperation decision parameter comprises a second local system reselection decision threshold and the second local system reselection decision threshold is less than or equal to a preset threshold S, judging whether the second multi-mode interoperation decision parameter further comprises a second inter-system reselection decision threshold and a second reselection delay time; if the second multi-mode interoperation decision parameter further comprises a second inter-system reselection decision threshold and a second reselection delay time, using the second multi-mode interoperation decision parameter to perform mode switching of the PS domain from the first wireless network to the second wireless network in an idle state; and if the second multi-mode interoperation decision parameter does not include a second inter-system reselection decision threshold and/or a second reselection hysteresis time, performing mode switching of the PS domain from the first wireless network to the second wireless network in an idle state by using a corresponding first inter-system reselection decision threshold and a corresponding first reselection hysteresis time in the second multi-mode interoperation decision parameter and the first multi-mode interoperation decision parameter.

15. A multi-mode interworking apparatus of a dual standby terminal according to claim 14, wherein the preset threshold S is a system minimum access threshold + a of the first wireless network, where a is a redundancy value and a is greater than M.

16. A multi-mode interworking unit for a dual standby terminal according to claim 15, wherein a-2M.

17. A multi-mode interworking apparatus of a dual standby terminal according to claim 11, characterized in that the apparatus further comprises:

the mode switching module is used for judging the resident wireless network and the state of the circuit switching CS domain of the dual-standby terminal after meeting the network reselection condition judged by the first multi-mode interoperation judgment parameter and/or the second multi-mode interoperation judgment parameter to obtain a second judgment result; and completing the mode conversion of the PS domain from the first wireless network to the second wireless network according to the second judgment result.

18. The multi-mode interoperation device of a dual standby terminal according to claim 17, wherein the mode conversion module is specifically configured to:

when the CS domain of the dual-standby terminal is in an idle state or a connected state in the 3G network, realizing mode conversion of the PS domain from the LTE network to the 3G network by updating the RAU mode through a routing area;

when the CS domain of the dual-standby terminal is in an idle state in the 2G network, realizing mode conversion of the PS domain from the LTE network to the 2G network in an RAU mode;

when the CS domain of the dual-standby terminal is in a connected state in a 2G network and the 2G network does not support a dual-transmission mode DTM function, searching and trying to reside in an LTE network or a 3G network, and after the CS domain of the dual-standby terminal enters an idle state, if no LTE network or 3G network cell can reside, realizing mode conversion of the PS domain from the LTE network or the 3G network to the 2G network in an RAU mode;

and when the CS domain of the dual-standby terminal is in a connected state in the 2G network and the 2G network supports the DTM function, realizing mode conversion of the PS domain from the LTE network or the 3G network to the 2G network in an RAU mode.