CN104936245B

CN104936245B - Implementation method, system and the terminal of SRVCC

Info

Publication number: CN104936245B
Application number: CN201410109286.7A
Authority: CN
Inventors: 王森; 赵琳; 李丽芳; 王小旭; 江海涛
Original assignee: China Mobile Communications Group Co Ltd
Current assignee: China Mobile Communications Group Co Ltd
Priority date: 2014-03-21
Filing date: 2014-03-21
Publication date: 2019-04-26
Anticipated expiration: 2034-03-21
Also published as: CN104936245A

Abstract

The invention discloses the implementation methods of single wireless mode continuous voice call SRVCC a kind of, include: terminal LTE module SRVCC order is received by the first radio-frequency channel after, by in the SRVCC order 2G/3G target frequency point and target cell information be sent to the 2G/3G module of terminal, and carrying relevant treatment is carried out to other Deta bearers in addition to voice bearer according to the coverage condition of LTE network；The 2G/3G module carries out random access by the second radio-frequency channel on corresponding Target cell, and sends SRVCC switching and complete order.The present invention discloses a kind of terminal and the realization systems of SRVCC.

Description

Implementation method, system and the terminal of SRVCC

Technical field

The present invention relates to wireless communication technique more particularly to a kind of single wireless mode continuous voice call (SRVCC, Single Radio Voice Call Continuity) implementation method, system and terminal.

Background technique

3G (Third Generation) Moblie Partnership Program (3GPP, 3rd Generation Partnership Project) standard rule Fixed: LTE voice (VoLTE, Voice over LTE) terminal should support circuits domain dropping (CSFB, Circuit Switched Fallback) mode and Generation Mobile Telecommunication System technology/3rd generation mobile communication technology (2G/3G) mode.

When under the VoLTE network coverage, VoLTE terminal works are under VoLTE mode；VoLTE is not supported when being in When under the CSFB network coverage of function, VoLTE terminal works are under CSFB mode；When under the 2G/3G network coverage, VoLTE terminal works are under 2G/3G mode.According to 3GPP standard: when VoLTE terminal in VoLTE call carries out from VoLTE net When network overlay area is moved to 2G/3G network's coverage area, it should by SRVCC technology, call be switched to from VoLTE speech The circuit commutative field (CS, Circuit Switched Domain) of 2G/3G network is conversed, to keep voice continuity.

Meanwhile 3GPP standard it further provides that: when VoLTE terminal is in VoLTE network's coverage area edge or CSFB network When the edge of overlay area, it is also desirable to SRVCC process is initiated, to keep voice continuity.For example for, when VoLTE terminal When being in VoLTE communication process, and being moved to CSFB network's coverage area from VoLTE network's coverage area, it may be assumed that VoLTE is whole When end is in the edge of VoLTE network's coverage area, since CSFB network's coverage area does not support VoLTE function, so evolution Type node (eNB, evolved Node B) needs to initiate SRVCC process, so that the CS that VoLTE call is switched to 2G/3G leads to Words, to keep voice continuity.But since VoLTE terminal at this time is still in the overlay area of LTE network, use After the technical solution of existing SRVCC, VoLTE terminal can not carry out data voice voice and packet data concurrent service.

Summary of the invention

To solve existing technical problem, the embodiment of the present invention provides the implementation method, system and end of a kind of SRVCC End.

The embodiment of the invention provides the implementation methods of SRVCC a kind of, comprising:

After the LTE module of terminal receives SRVCC order by the first radio-frequency channel, by the 2G/ in the SRVCC order 3G target frequency point and target cell information are sent to the 2G/3G module of terminal, and according to the coverage condition of LTE network to except voice Other Deta bearers outside carrying carry out carrying relevant treatment；

The 2G/3G module carries out random access by the second radio-frequency channel on corresponding Target cell, and sends Order is completed in SRVCC switching.

In above scheme, the 2G/3G target frequency point and target cell information by the SRVCC order is sent to end Before the 2G/3G module at end, the method also includes:

The LTE module parses the SRVCC order；

Correspondingly, the 2G/3G target frequency point and target cell information that parse are sent to the 2G/ by the LTE module 3G module.

In above scheme, the method also includes:

The terminal when booting up attachment or carrying out tracing section updating TAU, penetrate described first by the LTE module The Double RF channel capacity of 2G, 3G and 4G measurement capability and the terminal, the 2G/ are reported on frequency channel to first network side 3G module reports 2G/3G single mode measurement capability to the second network side on second radio-frequency channel.

It is described before the LTE module of the terminal receives SRVCC order by the first radio-frequency channel in above scheme Method further include:

The LTE module sends the measurement result for meeting handoff threshold and corresponding frequency point to the first network side；Its In,

The measurement result for meeting handoff threshold and corresponding frequency point are as follows: according to the first network side be the terminal The measurement result for meeting handoff threshold and corresponding frequency point that the adjacent area the 2G/3G frequency point list of configuration and handoff threshold obtain.

In above scheme, the method also includes:

When the terminal is in the overlay area of VoLTE network, the LTE module is attached in LTE network, and is occupied First radio-frequency channel；The 2G/3G module is attached to 2G/3G network, and occupies the second channel channel.

In above scheme, the coverage condition according to LTE network carries out other Deta bearers in addition to voice bearer Carry relevant treatment, comprising:

The LTE module hangs up other Deta bearers, and judges whether there is the LTE frequency point for meeting resident condition, According to judging result, restore other Deta bearers or work in off-grid state.

In above scheme, described judge whether there is meets the LTE frequency point that LTE is resident condition, according to judging result, restores institute Other Deta bearers or work are stated in off-grid state, comprising:

To Reference Signal Received Power (RSRP, the Reference Signal of the service frequency point of itself attachment Receiving Power) measure, according to measurement result determine the service frequency point meet LTE be resident condition when, it is described LTE module restores the other Deta bearers being suspended.

The RSRP of the service frequency point of itself attachment is measured, determines that the service frequency point is unsatisfactory for according to measurement result When LTE is resident condition, the LTE module scans for the LTE frequency point that itself adhered within a preset time, determines described attached Cross LTE frequency point in have meet LTE be resident condition LTE frequency point when, the LTE module meet LTE be resident condition LTE After completing random access procedure on frequency point, restore the other Deta bearers being suspended.

The RSRP of the service frequency point of itself attachment is measured, determines that the service frequency point is unsatisfactory for according to measurement result When LTE is resident condition, the LTE module scans for the LTE frequency point that itself adhered within a preset time, determines described attached When not meeting LTE in the LTE frequency point crossed and being resident the LTE frequency point of condition, LTE module work is in off-grid state.

In above scheme, the LTE module is held by other data that tracing section updating TAU process is restored to be suspended It carries.

In above scheme, the 2G/3G module is connect on corresponding Target cell at random by the second radio-frequency channel Enter, comprising:

The 2G/3G module is by second radio-frequency channel frequency modulation to the target frequency point；

The 2G/3G module carries out random access procedure on second radio-frequency channel and the Target cell.

The embodiment of the invention also provides the implementation methods of SRVCC a kind of, comprising:

It, will be described after the LTE module of terminal receives the SRVCC order from first network side by the first radio-frequency channel 2G/3G target frequency point and target cell information in SRVCC order are sent to the 2G/3G module of terminal, and according to LTE network Coverage condition carries out carrying relevant treatment to other Deta bearers in addition to voice bearer；

The LTE module parses the SRVCC order；

In above scheme, the method also includes:

The terminal boot up attachment or carry out tracing section updating (TAU, Tracking Area Update) when, The LTE module reports 2G, 3G and 4G measurement capability and described to the first network side on first radio-frequency channel The Double RF channel capacity of terminal, the 2G/3G module report 2G/3G mono- on second radio-frequency channel to the second network side Mould measurement capability.

In above scheme, the method also includes:

The first network side is the terminal configuration of 2 G/adjacent area 3G frequency point list and handoff threshold；

In above scheme, the method also includes:

The RSRP of the service frequency point of itself attachment is measured, determines that the service frequency point meets according to measurement result When LTE is resident condition, the LTE module restores the other Deta bearers being suspended.

In above scheme, the LTE module restores the other Deta bearers being suspended by TAU process.

The embodiment of the present invention provides a kind of terminal again, comprising: the first LTE module and the first 2G/3G module；Wherein,

First LTE module, after receiving SRVCC order by the first radio-frequency channel, by the SRVCC order In 2G/3G target frequency point and target cell information be sent to the first 2G/3G module, and according to the covering feelings of LTE network Condition carries out carrying relevant treatment to other Deta bearers in addition to voice bearer；

The first 2G/3G module, the 2G/3G target frequency point and target for receiving the first LTE module transmission are small After area's information, random access is carried out on corresponding Target cell by the second radio-frequency channel, and sends SRVCC switching and completes life It enables.

In above scheme, first LTE module is also used to parse the SRVCC order, correspondingly, will solve The 2G/3G target frequency point and target cell information of precipitation are sent to the first 2G/3G module.

In above scheme, first LTE module is also used to the terminal when booting up attachment or carrying out TAU, The Double RF channel of 2G, 3G and 4G measurement capability and the terminal is reported to first network side on first radio-frequency channel Ability；

Correspondingly, the 2G/3G module is also used to the terminal when booting up attachment or carrying out TAU, described 2G/3G single mode measurement capability is reported to the second network side on second radio-frequency channel.

In above scheme, first LTE module, before being also used to receive SRVCC order by the first radio-frequency channel, The measurement result for meeting handoff threshold and corresponding frequency point are sent to the first network side；Wherein,

In above scheme, first LTE module is also used to when the terminal is in the overlay area of VoLTE network, It is attached in LTE network, and occupies first radio-frequency channel；

Correspondingly, the first 2G/3G module is also used to when the terminal is in the overlay area of VoLTE network, attached Arrive 2G/3G network, and occupy the second channel channel.

The embodiment of the invention also provides the realization systems of SRVCC a kind of, comprising: first network side and terminal；The end End includes: the second LTE module and the 2nd 2G/3G module；Wherein,

The first network side, for sending SRVCC order to the terminal；

Second LTE module, for receiving the SRVCC order from the first network side by the first radio-frequency channel Afterwards, by the SRVCC order 2G/3G target frequency point and target cell information be sent to the 2nd 2G/3G module, and root Carrying relevant treatment is carried out to other Deta bearers in addition to voice bearer according to the coverage condition of LTE network；

The 2nd 2G/3G module, the 2G/3G target frequency point and target for receiving the second LTE module transmission are small After area's information, random access is carried out on corresponding Target cell by the second radio-frequency channel, and sends SRVCC switching and completes life It enables.

In above scheme, second LTE module is also used to parse the SRVCC order, correspondingly, will solve The 2G/3G target frequency point and target cell information of precipitation are sent to the 2nd 2G/3G module.

In above scheme, the system also includes: the second network side；Wherein,

Second LTE module is also used to the terminal when booting up attachment or carrying out TAU, described first The Double RF channel capacity of 2G, 3G and 4G measurement capability and the terminal is reported on radio-frequency channel to the first network side；

Correspondingly, the 2nd 2G/3G module is also used to the terminal when booting up attachment or carrying out TAU, institute Terminal is stated when booting up attachment or carrying out TAU, reports 2G/3G mono- to the second network side on second radio-frequency channel Mould measurement capability.

In above scheme, the first network side is also used to as the terminal configuration of 2 G/adjacent area 3G frequency point list and switching Thresholding；And receive measurement result and corresponding frequency point that second LTE module is sent；

Second LTE module, is also used to send to the first network side and meets the measurement result of handoff threshold and right The frequency point answered；Wherein,

In above scheme, second LTE module is also used to when the terminal is in the overlay area of VoLTE network, It is attached in LTE network, and occupies first radio-frequency channel；

Correspondingly, the 2nd 2G/3G module is also used to when the terminal is in the overlay area of VoLTE network, attached Arrive 2G/3G network, and occupy the second channel channel.

The LTE module of implementation method, system and the terminal of SRVCC provided in an embodiment of the present invention, terminal is penetrated by first After frequency channel reception to SRVCC order, by the SRVCC order 2G/3G target frequency point and and target cell information send Other Deta bearers in addition to voice bearer are carried to the 2G/3G module of terminal, and according to the coverage condition of LTE network Relevant treatment；The 2G/3G module carries out random access by the second radio-frequency channel, and sends SRVCC switching and complete order, this The terminal of inventive embodiments be VoLTE double-standby terminal, in this way, when the terminal be in VoLTE network's coverage area edge or When the network's coverage area edge CSFB, during SRVCC is carried out can Quick-return data service, realize data and speech simultaneously Sending service enables users to enjoy high-speed data service brought by LTE network, and then promotes user experience.

Detailed description of the invention

In attached drawing (it is not necessarily drawn to scale), similar appended drawing reference can describe phase in different views As component.Similar reference numerals with different letter suffix can indicate the different examples of similar component.Attached drawing with example and Unrestricted mode generally shows each embodiment discussed herein.

Fig. 1 is the implementation method flow diagram of SRVCC of the embodiment of the present invention a kind of；

Fig. 2 is the implementation method flow diagram of another kind of embodiment of the present invention SRVCC；

Fig. 3 is the terminal of that embodiment of the invention structural schematic diagram；

Fig. 4 is the realization system structure diagram of SRVCC of the embodiment of the present invention.

Specific embodiment

The implementation method of SRVCC, mainly comprises the steps that under existing VoLTE scene

Step 1:LTE network side is the terminal configuration of 2 G/adjacent area 3G frequency point list and handoff threshold；

Step 2: after the LTE module of terminal receives the frequency point list of the adjacent area 2G/3G and the handoff threshold of configuration, being surveyed meeting The measurement result and frequency point for measuring thresholding are reported to LTE network side；

The measurement result and frequency point that step 3:LTE network side is reported according to terminal, issue SRVCC switching command to terminal, The 2G/3G target frequency point of switching is carried in SRVCC switching command；

Step 4: after the LTE module of terminal receives SRVCC switching command, by the target for including in SRVCC switching command frequency The information of point and respective target cells sends the 2G/3G module of terminal to；

Step 5: after the 2G/3G module of terminal receives the information of target frequency point and respective target cells, radio-frequency channel is occupied, By radio-frequency channel adjusting channel target frequency point；

Step 6: after successfully carrying out random access on 2G/3G target frequency point, the 2G/3G module of terminal is to 2G/3G network Side sends SRVCC handoff completion message.

From the above description, it will be seen that existing VoLTE terminal is single to terminal, and only a set of radio frequency system, such as This, when VoLTE terminal is in VoLTE network's coverage area edge or the network's coverage area edge CSFB, due at this time VoLTE terminal is still in the overlay area of LTE network, and VoLTE terminal can not carry out data and speech voice and packet data concurrent service, also High-speed data service brought by LTE network can not be enjoyed.

Based on this, in various embodiments of the present invention: the LTE module of terminal is received by the first radio-frequency channel After SRVCC order, by the SRVCC order 2G/3G target frequency point and and target cell information be sent to the 2G/3G of terminal Module, and carrying relevant treatment is carried out to other Deta bearers in addition to voice bearer according to the coverage condition of LTE network；It is described 2G/3G module carries out random access by the second radio-frequency channel, and sends SRVCC switching and complete order.

With reference to the accompanying drawing and specific embodiment is again described in further detail the present invention.

A kind of implementation method of SRVCC of the embodiment of the present invention is applied to VoLTE scene, as shown in Figure 1, this method includes Following steps:

Step 101: after the LTE module of terminal receives SRVCC order by the first radio-frequency channel, the SRVCC being ordered 2G/3G target frequency point and target cell information in order are sent to the 2G/3G module of terminal, and according to the covering feelings of LTE network Condition carries out carrying relevant treatment to other Deta bearers in addition to voice bearer；

Here, the LTE module refers to: the module that the terminal works can be made required under LTE network；

Correspondingly, the 2G/3G module refers to: the module that the terminal works can be made required under 2G/3G network.

Terminal provided in an embodiment of the present invention is VoLTE double-standby terminal, that is to say, that the terminal support CSFB mode and 2G/3G mode, the terminal have LTE module and 2G module, alternatively, the terminal has LTE module and 3G module.When described When 2G/3G module is 2G module, after the LTE module receives SRVCC order by the first radio-frequency channel, by the SRVCC 2G target frequency point and target cell information in order are sent to the 2G module of terminal；When the 2G/3G module is 3G module, After the LTE module receives SRVCC order by the first radio-frequency channel, by the SRVCC order 3G target frequency point and Target cell information is sent to the 3G module of terminal.

By in the SRVCC order 2G/3G target frequency point and target cell information be sent to the 2G/3G module of terminal Before, this method can also include:

The LTE module parses the SRVCC order, correspondingly, the 2G/3G that the LTE module will parse Target frequency point and target cell information are sent to the 2G/3G module, so that the 2G/3G module can recognize that the SRVCC 2G/3G target frequency point and target cell information in order.

Before executing step 101, this method can also include:

The terminal boot up attachment or carry out TAU when, the LTE module on first radio-frequency channel to First network side reports the Double RF channel capacity of 2G, 3G and 4G measurement capability and the terminal, and the 2G/3G module is in institute It states and reports 2G/3G single mode measurement capability to the second network side on the second radio-frequency channel, so that the terminal can smoothly complete SRVCC。

Wherein, the first network side is the corresponding network side of the LTE module, as LTE network side；Second net Network side is the corresponding network side of the 2G/3G module, as 2G/3G network side.Here, the network side refers to that network side is set It is standby, such as base station etc..

Before executing step 101, this method can also include:

The LTE module sends the measurement result for meeting handoff threshold and corresponding frequency point to the first network side, with Toilet states first network side can send the SRVCC order for carrying 2G/3G target frequency point and target cell information to the terminal；Its In, the measurement result for meeting handoff threshold and corresponding frequency point are to be configured according to the first network side for the terminal What the frequency point list of the adjacent area 2G/3G and handoff threshold obtained；Here, the first network side is the terminal configuration of 2 G/adjacent area 3G The opportunity of frequency point list and handoff threshold can according to need determination, that is to say, that triggering the first network side is the end The opportunity of the end configuration of 2 G/adjacent area 3G frequency point list and handoff threshold can according to need to determine.

The coverage condition according to LTE network carries out carrying related place to other Deta bearers in addition to voice bearer Reason, specifically includes:

The LTE module hangs up other Deta bearers, and judges whether there is the LTE frequency point for meeting resident condition, According to judging result, restore other Deta bearers or work in off-grid state；

Wherein, described to refer to other Deta bearer hang-up: the processing without other data.

Described judge whether there is meets the LTE frequency point that LTE is resident condition, according to judging result, restores other data Carrying works in off-grid state, specifically includes:

The RSRP of the service frequency point of itself attachment is measured, determines that the service frequency point meets according to measurement result When LTE is resident condition, the LTE module restores the other Deta bearers being suspended；Alternatively,

The RSRP of the service frequency point of itself attachment is measured, determines that the service frequency point is unsatisfactory for according to measurement result When LTE is resident condition, the LTE module scans for the LTE frequency point that itself adhered within a preset time, determines described attached Cross LTE frequency point in have meet LTE be resident condition LTE frequency point when, the LTE module meet LTE be resident condition LTE After completing random access procedure on frequency point, restore the other Deta bearers being suspended；Alternatively,

Wherein, described to determine whether the service frequency point meets LTE and be resident being implemented as condition according to measurement result Those skilled in the art's conventional techniques, which is not described herein again.

Whether the specific implementation that meets LTE frequency point that LTE be resident condition is had in the determination LTE frequency point adhered to For those skilled in the art's conventional techniques, which is not described herein again.

The preset time, which can according to need, to be configured, such as: 2 hours etc..

When practical application, the LTE module can restore the other Deta bearers being suspended by TAU process.

Step 102: the 2G/3G module carries out random access by the second radio-frequency channel on corresponding Target cell, And it sends SRVCC switching and completes order.

Here, the 2G/3G module carries out random access by the second radio-frequency channel on corresponding Target cell, specifically Include:

The transmission SRVCC switching is completed order and referred to: the 2G/3G module sends SRVCC to second network side Order is completed in switching.

From the above description, it will be seen that terminal described in the embodiment of the present invention is VoLTE double-standby terminal, the present invention is real The method that example offer is provided, when the terminal is in VoLTE network's coverage area edge or the network's coverage area edge CSFB, During SRVCC is carried out can Quick-return data service, realize data and speech voice and packet data concurrent service, enable users to enjoy LTE High-speed data service brought by network, and then promote user experience.

The implementation method of another kind of embodiment of the present invention SRVCC is applied to VoLTE scene, as shown in Fig. 2, this method packet Include following steps:

Step 201: after the LTE module of terminal receives the SRVCC order from first network side by the first radio-frequency channel, By in the SRVCC order 2G/3G target frequency point and target cell information be sent to the 2G/3G module of terminal, and according to LTE The coverage condition of network carries out carrying relevant treatment to other Deta bearers in addition to voice bearer；

Terminal provided in an embodiment of the present invention is VoLTE double-standby terminal, that is to say, that the terminal support CSFB mode and 2G/3G mode, the terminal have LTE module and 2G module, alternatively, the terminal has LTE module and 3G module.When described When 2G/3G module is 2G module, the LTE module receives the SRVCC order from first network side by the first radio-frequency channel Afterwards, by the SRVCC order 2G target frequency point and target cell information be sent to the 2G module of terminal；As the 2G/3G It, will after the LTE module is connected to the SRVCC order from first network side by the first radio-frequency channel when module is 3G module 3G target frequency point and target cell information in the SRVCC order are sent to the 3G module of terminal.

Before executing step 201, this method can also include:

This method can also include:

The LTE module sends the measurement result for meeting handoff threshold and corresponding frequency point to the first network side, with Toilet states first network side can send the SRVCC order for carrying 2G/3G target frequency point and target cell information to the terminal；Its In, the first network side can according to need for the opportunity of the terminal configuration of 2 G/adjacent area 3G frequency point list and handoff threshold Determine, that is to say, that trigger the first network side be the terminal configuration of 2 G/adjacent area 3G frequency point list and handoff threshold when Machine can according to need to determine.

It is the terminal that the measurement result for meeting handoff threshold and corresponding frequency point, which are according to the first network side, What the adjacent area the 2G/3G frequency point list of configuration and handoff threshold obtained.

Step 202: the 2G/3G module carries out random access by the second radio-frequency channel on corresponding Target cell, And it sends SRVCC switching and completes order.

The 2G/3G module carries out random access procedure with the Target cell on second radio-frequency channel.

To realize method shown in FIG. 1, the embodiment of the invention also provides a kind of terminals, as shown in figure 3, the terminal packet It includes: the first LTE module 31 and the first 2G/3G module 32；Wherein,

First LTE module 31 will be in the SRVCC order after receiving SRVCC order by the first radio-frequency channel 2G/3G target frequency point and target cell information be sent to the first 2G/3G module 32, and according to the coverage condition pair of LTE network Other Deta bearers in addition to voice bearer carry out carrying relevant treatment；

First 2G/3G module 32, for receiving the 2G/3G target frequency point and Target cell letter of the transmission of the first LTE module 31 After breath, random access is carried out on corresponding Target cell by the second radio-frequency channel, and sends SRVCC switching and completes order.

Wherein, first LTE module 31 refers to: the module that the terminal works can be made required under LTE network；

Correspondingly, the first 2G/3G module 32 refers to: the mould that the terminal works can be made required under 2G/3G network Block.

Terminal provided in an embodiment of the present invention is VoLTE double-standby terminal, that is to say, that the terminal support CSFB mode and 2G/3G mode, the terminal have LTE module and 2G module, alternatively, the terminal has LTE module and 3G module.When described When first 2G/3G module 32 is 2G module, after first LTE module 31 receives SRVCC order by the first radio-frequency channel, By in the SRVCC order 2G target frequency point and target cell information be sent to the 2G module of terminal；As the first 2G/3G It, will be described after first LTE module 31 receives SRVCC order by the first radio-frequency channel when module 32 is 3G module 3G target frequency point and target cell information in SRVCC order are sent to the 3G module of terminal.

First LTE module 31 is also used to parse the SRVCC order, correspondingly, the 2G/ that will be parsed 3G target frequency point and target cell information are sent to the first 2G/3G module 32, so that the first 2G/3G module 32 can be known It Chu not 2G/3G target frequency point and target cell information in the SRVCC order.

First LTE module 31 is also used to be attached to LTE when the terminal is in the overlay area of VoLTE network On network, and occupy first radio-frequency channel；

Correspondingly, the first 2G/3G module 32 is also used to when the terminal is in the overlay area of VoLTE network, It is attached to 2G/3G network, and occupies the second channel channel.

First LTE module 31 is also used to the terminal when booting up attachment or carrying out TAU, described the The Double RF channel capacity of 2G, 3G and 4G measurement capability and the terminal is reported on one radio-frequency channel to first network side；Phase Ying Di, the 2G/3G module 32 are also used to the terminal when booting up attachment or carrying out TAU, in second radio frequency 2G/3G single mode measurement capability is reported to the second network side on channel, so that the terminal can smoothly complete SRVCC.

First LTE module 31, before being also used to receive SRVCC order by the first radio-frequency channel, Xiang Suoshu One network side sends the measurement result for meeting handoff threshold and corresponding frequency point, so that the first network side can be to the terminal Send the SRVCC order for carrying 2G/3G target frequency point and target cell information；Wherein, the measurement knot for meeting handoff threshold Fruit and corresponding frequency point are the frequency point list of the adjacent area 2G/3G and handoff threshold according to the first network side for terminal configuration It obtains；Here, the first network side is that the opportunity of the terminal configuration of 2 G/adjacent area 3G frequency point list and handoff threshold can be with It determines as needed, that is to say, that triggering the first network side is the terminal configuration of 2 G/adjacent area 3G frequency point list and switching The opportunity of thresholding can according to need to determine.

First LTE module 31 hangs up other Deta bearers, and judges whether there is the LTE for meeting resident condition Frequency point restores other Deta bearers or work in off-grid state according to judging result；

The RSRP of the service frequency point of itself attachment is measured, determines that the service frequency point meets according to measurement result When LTE is resident condition, first LTE module 31 restores the other Deta bearers being suspended；Alternatively,

The RSRP of the service frequency point of itself attachment is measured, determines that the service frequency point is unsatisfactory for according to measurement result When LTE is resident condition, first LTE module 31 scans for the LTE frequency point that itself adhered within a preset time, determines When having the LTE frequency point for meeting the resident condition of LTE in the LTE frequency point adhered to, first LTE module 31 is meeting LTE After completing random access procedure in the LTE frequency point of resident condition, restore the other Deta bearers being suspended；Alternatively,

The RSRP of the service frequency point of itself attachment is measured, determines that the service frequency point is unsatisfactory for according to measurement result When LTE is resident condition, first LTE module 31 scans for the LTE frequency point that itself adhered within a preset time, determines When not meeting the LTE frequency point of the resident condition of LTE in the LTE frequency point adhered to, the work of the first LTE module 31 is de- Net state.

When practical application, first LTE module 31 can be held by other data that TAU process is restored to be suspended It carries.

It is described that random access is carried out on corresponding Target cell by the second radio-frequency channel, it specifically includes:

The first 2G/3G module 32 is by second radio-frequency channel frequency modulation to the target frequency point；

The first 2G/3G module 32 carries out random access mistake on second radio-frequency channel and the Target cell Journey.

The transmission SRVCC switching is completed order and referred to: the first 2G/3G module 32 is sent to second network side Order is completed in SRVCC switching.

From the above description, it will be seen that terminal described in the embodiment of the present invention is VoLTE double-standby terminal, when the end It, can be fast during SRVCC is carried out when end is in VoLTE network's coverage area edge or the network's coverage area edge CSFB Speed replys data service, realizes data and speech voice and packet data concurrent service, enables users to enjoy high-speed data industry brought by LTE network Business, and then promote user experience.

To realize method shown in Fig. 2, the embodiment of the invention also provides the realization systems of SRVCC a kind of, such as Fig. 4 institute Show, which includes: first network side 41 and terminal 42；Terminal 42 includes: the second LTE module 421 and the 2nd 2G/3G module 422；Wherein,

First network side 41, for sending SRVCC order to terminal 41；

Second LTE module 421, after receiving the SRVCC order from first network side 41 by the first radio-frequency channel, By in the SRVCC order 2G/3G target frequency point and target cell information be sent to the 2nd 2G/3G module 422, and according to The coverage condition of LTE network carries out carrying relevant treatment to other Deta bearers in addition to voice bearer；

2nd 2G/3G module 422, for receiving the 2G/3G target frequency point and Target cell of the transmission of the second LTE module 421 After information, random access is carried out on corresponding Target cell by the second radio-frequency channel, and sends SRVCC switching and completes life It enables.

Wherein, second LTE module 421 refers to: the module that the terminal works can be made required under LTE network；

Correspondingly, the 2nd 2G/3G module 422 refers to: the mould that the terminal works can be made required under 2G/3G network Block.

The terminal that inventive embodiments provide is VoLTE double-standby terminal, that is to say, that the terminal support CSFB mode and 2G/3G mode, the terminal have LTE module and 2G module, alternatively, the terminal has LTE module and 3G module.When described When 2nd 2G/3G module 422 is 2G module, second LTE module 421 is received by the first radio-frequency channel from first network After the SRVCC order of side, by the SRVCC order 2G target frequency point and target cell information be sent to the 2G mould of terminal Block；When the 2nd 2G/3G module 422 be 3G module when, second LTE module 421 by the first radio-frequency channel be connected to come From after the SRVCC order of first network side, by the SRVCC order 3G target frequency point and target cell information be sent to end The 3G module at end.

Second LTE module 421 is also used to parse the SRVCC order, correspondingly, the 2G/ that will be parsed 3G target frequency point and target cell information are sent to the 2nd 2G/3G module 422, so as to 422 energy of the 2nd 2G/3G module Identify the 2G/3G target frequency point and target cell information in the SRVCC order.

Second LTE module 421 is also used to be attached to when the terminal is in the overlay area of VoLTE network In LTE network, and occupy first radio-frequency channel；Correspondingly, the 2nd 2G/3G module 422 is also used to when the terminal When overlay area in VoLTE network, it is attached to 2G/3G network, and occupy the second channel channel.

The system can also include: the second network side；Wherein,

Second LTE module 421 is also used to the terminal 42 when booting up attachment or carrying out TAU, described The Double RF channel of 2G, 3G and 4G measurement capability and the terminal is reported on first radio-frequency channel to the first network side 41 Ability；Correspondingly, the 2nd 2G/3G module 422 is also used to the terminal 42 when booting up attachment or carrying out TAU, The terminal 42 reports 2G/ to the second network side on second radio-frequency channel when booting up attachment or carrying out TAU 3G single mode measurement capability, so that the terminal can smoothly complete SRVCC.

Wherein, the first network side 41 is the corresponding network side of second LTE module 421, as LTE network side； Second network side is the corresponding network side of the 2nd 2G/3G module 422, as 2G/3G network side.Here, the net Network side refers to network side equipment, such as base station etc..

The first network side 41 is also used to as the terminal configuration of 2 G/adjacent area 3G frequency point list and handoff threshold；And it connects Receive the measurement result and corresponding frequency point that second LTE module 421 is sent；

Second LTE module 421 is also used to send the measurement result for meeting handoff threshold to the first network side 41 And corresponding frequency point, so that the first network side energy 41 is small to the terminal 42 transmission carrying 2G/3G target frequency point and target The SRVCC order of area's information；Wherein, the first network side 41 is the terminal configuration of 2 G/adjacent area 3G frequency point list and switching The opportunity of thresholding can according to need determination, that is to say, that triggering the first network side 41 is 42 configuration of 2 G of the terminal/3G The opportunity of adjacent area frequency point list and handoff threshold can according to need to determine.

It is the end that the measurement result for meeting handoff threshold and corresponding frequency point, which are according to the first network side 41, What the adjacent area the 2G/3G frequency point list of 42 configuration of end and handoff threshold obtained.

Second LTE module 421 hangs up other Deta bearers, and judges whether there is and meet resident condition LTE frequency point restores other Deta bearers or work in off-grid state according to judging result；

The RSRP of the service frequency point of itself attachment is measured, determines that the service frequency point meets according to measurement result When LTE is resident condition, second LTE module 421 restores the other Deta bearers being suspended；Alternatively,

The RSRP of the service frequency point of itself attachment is measured, determines that the service frequency point is unsatisfactory for according to measurement result When LTE is resident condition, second LTE module 421 scans for the LTE frequency point that itself adhered within a preset time, really When having the LTE frequency point for meeting the resident condition of LTE in the fixed LTE frequency point adhered to, second LTE module 421 is meeting LTE is resident in the LTE frequency point of condition after completion random access procedure, and the other Deta bearers being suspended are restored；Alternatively,

The RSRP of the service frequency point of itself attachment is measured, determines that the service frequency point is unsatisfactory for according to measurement result When LTE is resident condition, second LTE module 421 scans for the LTE frequency point that itself adhered within a preset time, really When not meeting the LTE frequency point of the resident condition of LTE in the fixed LTE frequency point adhered to, second LTE module 421 works In off-grid state.

When practical application, second LTE module 421 can be held by other data that TAU process is restored to be suspended It carries.

The 2nd 2G/3G module 422 is by second radio-frequency channel frequency modulation to the target frequency point；

The 2nd 2G/3G module 422 carries out random access mistake with the Target cell on second radio-frequency channel Journey.

The transmission SRVCC switching is completed order and referred to: the 2nd 2G/3G module 422 is sent out to second network side SRVCC switching is sent to complete order.

It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, the shape of hardware embodiment, software implementation or embodiment combining software and hardware aspects can be used in the present invention Formula.Moreover, the present invention, which can be used, can use storage in the computer that one or more wherein includes computer usable program code The form for the computer program product implemented on medium (including but not limited to magnetic disk storage and optical memory etc.).

The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.

Claims

1. a kind of implementation method of single wireless mode continuous voice call SRVCC, which is characterized in that the described method includes:

After the LTE module of terminal receives SRVCC order by the first radio-frequency channel, by the 2G/3G mesh in the SRVCC order Mark frequency point and target cell information are sent to the 2G/3G module of terminal, and according to the coverage condition of LTE network to except voice bearer Outer other Deta bearers carry out carrying relevant treatment；

The 2G/3G module carries out random access by the second radio-frequency channel on corresponding Target cell, and sends SRVCC and cut Change completion order；

Wherein, the coverage condition according to LTE network carries out carrying related place to other Deta bearers in addition to voice bearer Reason, comprising:

The LTE module hangs up other Deta bearers, and judges whether there is the LTE frequency point for meeting resident condition, according to Judging result restores other Deta bearers or work in off-grid state.

2. the method according to claim 1, wherein the 2G/3G target frequency point by the SRVCC order And target cell information is sent to before the 2G/3G module of terminal, the method also includes:

The LTE module parses the SRVCC order；

Correspondingly, the 2G/3G target frequency point and target cell information that parse are sent to the 2G/3G mould by the LTE module Block.

3. the method according to claim 1, wherein the method also includes:

For the terminal when booting up attachment or carrying out tracing section updating TAU, the LTE module is logical in first radio frequency The Double RF channel capacity of 2G, 3G and 4G measurement capability and the terminal, the 2G/3G mould are reported on road to first network side Block reports 2G/3G single mode measurement capability to the second network side on second radio-frequency channel.

4. according to the method described in claim 3, it is characterized in that, the LTE module of the terminal is connect by the first radio-frequency channel Before receiving SRVCC order, the method also includes:

The LTE module sends the measurement result for meeting handoff threshold and corresponding frequency point to the first network side；Wherein,

The measurement result for meeting handoff threshold and corresponding frequency point are as follows: according to the first network side be the terminal configure The frequency point list of the adjacent area 2G/3G and the obtained measurement result for meeting handoff threshold of handoff threshold and corresponding frequency point.

5. according to the method described in claim 3, it is characterized in that, the method also includes:

When the terminal is in the overlay area of VoLTE network, the LTE module is attached in LTE network, and described in occupancy First radio-frequency channel；The 2G/3G module is attached to 2G/3G network, and occupies the second channel channel.

6. the method according to claim 1, wherein described judge whether there is meets the LTE frequency that LTE is resident condition Point restores other Deta bearers or work in off-grid state according to judging result, comprising:

The Reference Signal Received Power RSRP of the service frequency point of itself attachment is measured, the clothes are determined according to measurement result Business frequency point meets LTE when being resident condition, and the LTE module restores the other Deta bearers being suspended.

7. the method according to claim 1, wherein described judge whether there is meets the LTE frequency that LTE is resident condition Point restores other Deta bearers or work in off-grid state according to judging result, comprising:

The RSRP of the service frequency point of itself attachment is measured, determines that the service frequency point is unsatisfactory for LTE according to measurement result When resident condition, the LTE module scans for the LTE frequency point that itself adhered within a preset time, determines the attachment When having the LTE frequency point for meeting the resident condition of LTE in the LTE frequency point crossed, the LTE module is in the LTE frequency for meeting the resident condition of LTE After completing random access procedure on point, restore the other Deta bearers being suspended.

8. the method according to claim 1, wherein described judge whether there is meets the LTE frequency that LTE is resident condition Point restores other Deta bearers or work in off-grid state according to judging result, comprising:

The RSRP of the service frequency point of itself attachment is measured, determines that the service frequency point is unsatisfactory for LTE according to measurement result When resident condition, the LTE module scans for the LTE frequency point that itself adhered within a preset time, determines the attachment When not meeting the LTE frequency point of the resident condition of LTE in the LTE frequency point crossed, the LTE module work is in off-grid state.

9. according to the described in any item methods of claim 6 to 8, which is characterized in that the LTE module passes through tracing section updating TAU process restores the other Deta bearers being suspended.

10. method according to any one of claims 1 to 8, which is characterized in that the 2G/3G module passes through the second radio frequency Channel carries out random access on corresponding Target cell, comprising:

11. a kind of implementation method of SRVCC, which is characterized in that the described method includes:

After the LTE module of terminal receives the SRVCC order from first network side by the first radio-frequency channel, by the SRVCC 2G/3G target frequency point and target cell information in order are sent to the 2G/3G module of terminal, and according to the covering of LTE network Situation carries out carrying relevant treatment to other Deta bearers in addition to voice bearer；

Other Deta bearers are hung up, and judge whether there is the LTE frequency point for meeting resident condition, it is extensive according to judging result Multiple other Deta bearers or work are in off-grid state.

12. according to the method for claim 11, which is characterized in that the 2G/3G target frequency by the SRVCC order Point and target cell information are sent to before the 2G/3G module of terminal, the method also includes:

The LTE module parses the SRVCC order；

13. according to the method for claim 11, which is characterized in that the method also includes:

For the terminal when booting up attachment or carrying out tracing section updating TAU, the LTE module is logical in first radio frequency The Double RF channel capacity of 2G, 3G and 4G measurement capability and the terminal, the 2G/ are reported on road to the first network side 3G module reports 2G/3G single mode measurement capability to the second network side on second radio-frequency channel.

14. according to the method for claim 11, which is characterized in that the method also includes:

15. according to the method for claim 13, which is characterized in that the method also includes:

16. according to the method for claim 11, which is characterized in that described judge whether there is meets the LTE that LTE is resident condition Frequency point restores other Deta bearers or work in off-grid state according to judging result, comprising:

The RSRP of the service frequency point of itself attachment is measured, determines that the service frequency point meets LTE and stays according to measurement result When staying condition, the LTE module restores the other Deta bearers being suspended.

17. according to the method for claim 11, which is characterized in that described judge whether there is meets the LTE that LTE is resident condition Frequency point restores other Deta bearers or work in off-grid state according to judging result, comprising:

18. according to the method for claim 11, which is characterized in that described judge whether there is meets the LTE that LTE is resident condition Frequency point restores other Deta bearers or work in off-grid state according to judging result, comprising:

19. 6 to 18 described in any item methods according to claim 1, which is characterized in that the LTE module is extensive by TAU process The other Deta bearers being suspended again.

20. 1 to 18 described in any item methods according to claim 1, which is characterized in that the 2G/3G module is penetrated by second Frequency channel carries out random access on corresponding Target cell, comprising:

21. a kind of terminal, which is characterized in that the terminal includes: the first LTE module and the first 2G/3G module；Wherein,

First LTE module will be in the SRVCC order after receiving SRVCC order by the first radio-frequency channel 2G/3G target frequency point and target cell information are sent to the first 2G/3G module, and according to the coverage condition pair of LTE network Other Deta bearers in addition to voice bearer carry out carrying relevant treatment；

The first 2G/3G module, for receiving the 2G/3G target frequency point and Target cell letter that first LTE module is sent After breath, random access is carried out on corresponding Target cell by the second radio-frequency channel, and sends SRVCC switching and completes order；

Wherein, first LTE module carries out other Deta bearers in addition to voice bearer according to the coverage condition of LTE network Carry relevant treatment, comprising:

First LTE module hangs up other Deta bearers, and judges whether there is the LTE frequency point for meeting resident condition, According to judging result, restore other Deta bearers or work in off-grid state.

22. terminal according to claim 21, which is characterized in that

First LTE module is also used to parse the SRVCC order, correspondingly, the 2G/3G target that will be parsed Frequency point and target cell information are sent to the first 2G/3G module.

23. terminal according to claim 22, which is characterized in that first LTE module, be also used to the terminal into Row booting up attachment or carry out TAU when, on first radio-frequency channel to first network side report 2G, 3G and 4G measure energy The Double RF channel capacity of power and the terminal；

Correspondingly, the 2G/3G module is also used to the terminal when booting up attachment or carrying out TAU, described second 2G/3G single mode measurement capability is reported to the second network side on radio-frequency channel.

24. terminal according to claim 23, which is characterized in that first LTE module is also used to through the first radio frequency Before channel reception to SRVCC order, Xiang Suoshu first network side sends the measurement result for meeting handoff threshold and corresponding frequency Point；Wherein,

25. according to the described in any item terminals of claim 21 to 24, which is characterized in that

First LTE module is also used to be attached to LTE network when the terminal is in the overlay area of VoLTE network On, and occupy first radio-frequency channel；

Correspondingly, the first 2G/3G module is also used to be attached to when the terminal is in the overlay area of VoLTE network 2G/3G network, and occupy the second channel channel.

26. the realization system of SRVCC a kind of, which is characterized in that the system comprises: first network side and terminal；The terminal It include: the second LTE module and the 2nd 2G/3G module；Wherein,

The first network side, for sending SRVCC order to the terminal；

Second LTE module, after receiving the SRVCC order from the first network side by the first radio-frequency channel, By in the SRVCC order 2G/3G target frequency point and target cell information be sent to the 2nd 2G/3G module, and according to The coverage condition of LTE network carries out carrying relevant treatment to other Deta bearers in addition to voice bearer；

The 2nd 2G/3G module, for receiving the 2G/3G target frequency point and Target cell letter that second LTE module is sent After breath, random access is carried out on corresponding Target cell by the second radio-frequency channel, and sends SRVCC switching and completes order；

Wherein, second LTE module carries out other Deta bearers in addition to voice bearer according to the coverage condition of LTE network Carry relevant treatment, comprising:

Second LTE module hangs up other Deta bearers, and judges whether there is the LTE frequency point for meeting resident condition, According to judging result, restore other Deta bearers or work in off-grid state.

27. system according to claim 26, which is characterized in that second LTE module is also used to the SRVCC Order is parsed, and correspondingly, the 2G/3G target frequency point and target cell information that parse is sent to the 2nd 2G/3G Module.

28. system according to claim 26, which is characterized in that the system also includes: the second network side；Wherein,

Second LTE module is also used to the terminal when booting up attachment or carrying out TAU, in first radio frequency The Double RF channel capacity of 2G, 3G and 4G measurement capability and the terminal is reported on channel to the first network side；

Correspondingly, the 2nd 2G/3G module is also used to the terminal when booting up attachment or carrying out TAU, the end End reports 2G/3G single mode to survey on second radio-frequency channel when booting up attachment or carrying out TAU to the second network side Amount ability.

29. system according to claim 28, which is characterized in that

The first network side is also used to as the terminal configuration of 2 G/adjacent area 3G frequency point list and handoff threshold；And described in receiving The measurement result and corresponding frequency point that second LTE module is sent；

Second LTE module, is also used to send to the first network side and meets the measurement result of handoff threshold and corresponding Frequency point；Wherein,

30. according to the described in any item systems of claim 26 to 29, which is characterized in that

Second LTE module is also used to be attached to LTE network when the terminal is in the overlay area of VoLTE network On, and occupy first radio-frequency channel；

Correspondingly, the 2nd 2G/3G module is also used to be attached to when the terminal is in the overlay area of VoLTE network 2G/3G network, and occupy the second channel channel.