CN109951878A - A kind of voice service switching method, terminal device, network side equipment and system - Google Patents
A kind of voice service switching method, terminal device, network side equipment and system Download PDFInfo
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- CN109951878A CN109951878A CN201711384774.9A CN201711384774A CN109951878A CN 109951878 A CN109951878 A CN 109951878A CN 201711384774 A CN201711384774 A CN 201711384774A CN 109951878 A CN109951878 A CN 109951878A
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Abstract
The embodiment of the present invention provides a kind of voice service switching method, terminal device, network side equipment and system.This method comprises: receiving the identification request that network side issues, International Mobile Equipment Identity code IMEI is sent to network side, so that network side determines terminal class according to IMEI and pre-set abnormal terminals library；Receive the radio resource control RRC reconfiguration message that network side issues, the corresponding enhancing single wireless voice calling continuity eSRVCC parameter information of RRC reconfiguration message carried terminal classification；In VoLTE communication process, if the condition that signal meets the eSRVCC parameter information setting that receives is known in judgement, eSRVCC measurement event is reported to report to network side；The eSRVCC command messages that network side issues are received, eSRVCC switching is carried out.The embodiment of the present invention is directed to different terminal class, issues different eSRVCC parameter informations, improves the flexibility of network configuration, it can be ensured that the continuity of the voice service of various types of other terminal device improves voice switching service quality.
Description
Technical field
The present embodiments relate to fields of communication technology, and in particular to a kind of voice service switching method, terminal device, net
Network side apparatus and system.
Background technique
VoLTE (Voice over LTE) is a kind of IP data biography as the voice service based on IP multimedia subsystem
Transferring technology is not necessarily to 2G/3G network, and whole service bearers are in LTE network, i.e., on 4G network.However deployment of LTE network initial stage, it was covered
Lid rate is lower, in order to keep the continuity of voice service, carries out high definition voice/video using VoLTE in the overlay area LTE and leads to
Words are then conversed using the circuit-switched CS domain of 2G/3G network when LTE is without covering.Specifically when user is using LTE
Network carries out entering no overlay area LTE by the overlay area LTE, using the single wireless voice of enhancing in voice call process
Call continuity scheme (Enhanced Single Radio Voice Call Continuity, eSRVCC) is realized by LTE
Network guarantees the continuity of call to the talking connection of 2G/3G network.
ESRVCC is using Mobile Assisted Handover (Mobile Assisted Handover, MAHO) strategy, i.e., network is wanted
Ask moving table measuring ambient signals intensity and according to certain rules report network side, network according to the measurement result of mobile station into
Row judges whether to switch.Detailed process can be divided into measurement, judgement and execute 3 steps, and Fig. 1 is eSRVCC method in the prior art
Flow diagram, as shown in Figure 1, network side is logical when terminal device (User Equipment, UE) is in VoLTE talking state
It crosses wireless heterogeneous networks (Radio Resource Control, RRC) message and is issued to UE and believed for the parameter configuration of eSRVCC
Breath；When UE received signal quality declines to a certain extent, when meeting the condition of eSRVCC parameter setting, UE is reported to network side
The report of eSRVCC measurement event；After network side receives event report, eSRVCC command messages are issued to UE, UE executes eSRVCC stream
Journey ensure that the continuity of voice service.
However, terminal device all under same cell can only receive identical general eSRVCC ginseng in the prior art
Number configuration information can not issue dedicated eSRVCC parameter configuration for terminal device, section terminating equipment is caused to switch
It is delayed larger, not can guarantee the continuity of voice service.
Summary of the invention
For the defects in the prior art, the embodiment of the invention provides a kind of voice service switching method, terminal device,
Network side equipment and system.
In a first aspect, the embodiment of the present invention provides a kind of voice service switching method, comprising:
The identification request that network side issues is received, Xiang Suoshu network side sends International Mobile Equipment Identity code IMEI, for
The network side determines terminal class according to the IMEI and pre-set abnormal terminals library；
The radio resource control RRC reconfiguration message that network side issues is received, the RRC reconfiguration message carries the end
Hold the corresponding enhancing single wireless voice calling continuity eSRVCC parameter information of classification；
In VoLTE communication process, if the condition that signal meets the eSRVCC parameter information setting that receives is known in judgement,
Then eSRVCC measurement event is reported to report to the network side；
The eSRVCC command messages that the network side issues are received, eSRVCC switching is carried out.
Second aspect, further embodiment of this invention provide a kind of voice service switching method, comprising:
Identification request is sent to terminal device；
The International Mobile Equipment Identity code IMEI that the terminal device is sent is received, according to the IMEI and pre-set
Abnormal terminals library determines the terminal class of the terminal device；
Enhancing single wireless voice calling continuity eSRVCC parameter information is determined according to the terminal class, to the end
End equipment sends radio resource control RRC reconfiguration message, and the RRC reconfiguration message carries the eSRVCC parameter information,
So that the terminal device is in VoLTE communication process, judge to receive whether signal meets the eSRVCC parameter information setting
Condition；
Receive the eSRVCC measurement event report that the terminal device reports；
ESRVCC command messages are sent to the terminal device, so that the terminal device carries out eSRVCC switching.
The third aspect, the embodiment of the present invention provide a kind of terminal device, comprising:
First sending module, the identification request issued for receiving network side, Xiang Suoshu network side send international movement and set
Standby identity code IMEI, so that the network side determines terminal class according to the IMEI and pre-set abnormal terminals library；
First receiving module, the radio resource control RRC reconfiguration message issued for receiving network side, the RRC weight
It configures message and carries the corresponding enhancing single wireless voice calling continuity eSRVCC parameter information of the terminal class；
Reporting module, in VoLTE communication process, receiving signal to meet the eSRVCC parameter letter if judging to know
The condition of setting is ceased, then reports eSRVCC measurement event to report to the network side；
Switching module, the eSRVCC command messages issued for receiving the network side carry out eSRVCC switching.
Fourth aspect, the embodiment of the present invention provide a kind of network side equipment, comprising:
Second sending module, for sending identification request to terminal device；
Categorization module, the International Mobile Equipment Identity code IMEI sent for receiving the terminal device, according to described
IMEI and pre-set abnormal terminals library determine the terminal class of the terminal device；
Parameter configuration module, for determining enhancing single wireless voice calling continuity eSRVCC according to the terminal class
Parameter information, Xiang Suoshu terminal device send radio resource control RRC reconfiguration message, and the RRC reconfiguration message carries institute
ESRVCC parameter information is stated, so that the terminal device is in VoLTE communication process, it is described to judge whether reception signal meets
The condition of eSRVCC parameter information setting；
Second receiving module, the eSRVCC measurement event report reported for receiving the terminal device；
Third sending module, for the terminal device send eSRVCC command messages, for the terminal device into
Row eSRVCC switching.
5th aspect, the embodiment of the present invention provides a kind of voice service switching system, including at least one above-mentioned terminal is set
Standby and above-mentioned network side equipment.
6th aspect, the embodiment of the present invention provide a kind of electronic equipment, comprising:
Memory and processor, the processor and the memory complete mutual communication by bus；It is described to deposit
Reservoir is stored with the program instruction that can be executed by the processor, and it is as follows that the processor calls described program instruction to be able to carry out
Method: the identification request that network side issues is received, Xiang Suoshu network side sends International Mobile Equipment Identity code IMEI, for described
Network side determines terminal class according to the IMEI and pre-set abnormal terminals library；Receive the radio resource that network side issues
RRC reconfiguration message is controlled, the RRC reconfiguration message carries the corresponding enhancing single wireless audio call of the terminal class
Continuity eSRVCC parameter information；In VoLTE communication process, if judgement knows that receiving signal meets the eSRVCC parameter letter
The condition of setting is ceased, then reports eSRVCC measurement event to report to the network side；Receive the eSRVCC that the network side issues
Command messages carry out eSRVCC switching.
7th aspect, the embodiment of the present invention provide a kind of storage medium, are stored thereon with computer program, the computer journey
Following method is realized when sequence is executed by processor: receiving the identification request that network side issues, and Xiang Suoshu network side sends international move
Dynamic device identity IMEI, so that the network side determines terminal class according to the IMEI and pre-set abnormal terminals library
Not；The radio resource control RRC reconfiguration message that network side issues is received, the RRC reconfiguration message carries the terminal class
Not corresponding enhancing single wireless voice calling continuity eSRVCC parameter information；In VoLTE communication process, if judgement is known
The condition that signal meets the eSRVCC parameter information setting is received, then reports eSRVCC measurement event report to the network side
It accuses；The eSRVCC command messages that the network side issues are received, eSRVCC switching is carried out.
Voice service switching method provided in an embodiment of the present invention determines terminal class, needle according to the IMEI of terminal device
To different terminal class, different eSRVCC parameter informations is issued, all terminal devices under same cell is compensated for and connects
The defect that identical eSRVCC parameter information can only be received, improves the flexibility of network configuration, it can be ensured that various types of other
The continuity of the voice service of terminal device improves voice switching service quality.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is eSRVCC method flow schematic diagram in the prior art；
Fig. 2 is voice service switching method flow diagram provided in an embodiment of the present invention；
Fig. 3 is the voice service switching method flow diagram that further embodiment of this invention provides；
Fig. 4 is abnormal terminals storage method flow diagram in voice service switching method provided in an embodiment of the present invention；
Fig. 5 is the method flow that eSRVCC parameter information is determined in voice service switching method provided in an embodiment of the present invention
Schematic diagram；
Fig. 6 is abnormal terminals warehouse-out method flow diagram in voice service switching method provided in an embodiment of the present invention；
Fig. 7 is the voice service switching method flow diagram that yet another embodiment of the invention provides；
Fig. 8 is the signaling diagram for the voice service switching method that further embodiment of this invention provides；
The structural schematic diagram of Fig. 9 terminal device provided in an embodiment of the present invention；
The structural schematic diagram for the network side equipment that Figure 10 inventive embodiments provide；
The structural schematic diagram for the voice service switching system that Figure 11 inventive embodiments provide；
The structural schematic diagram of Figure 12 electronic equipment provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 2 is voice service switching method flow diagram provided in an embodiment of the present invention, as shown in Fig. 2, the voice industry
Business switching method include:
Step S21, the identification request that network side issues is received, Xiang Suoshu network side sends International Mobile Equipment Identity code
IMEI, so that the network side determines terminal class according to the IMEI and pre-set abnormal terminals library；
Specifically, existing enhancing single wireless voice calling continuity scheme (Enhanced Single Radio
Voice Call Continuity, eSRVCC) in, eSRVCC parameter information be it is configured in advance, the same LTE cell is adopted
With identical eSRVCC parameter information, it is denoted as general eSRVCC parameter information, passes through wireless heterogeneous networks (Radio Resource
Control, RRC) reconfiguration message to terminal device UE issues general eSRVCC parameter information, in order to be directed to different terminal equipment
Issue different eSRVCC parameter configurations, it is necessary first to which distinguishing terminal equipment determines that the world movement of each terminal device is set
Standby identity code (International Mobile Equipment Identity, IMEI).
The regulation in 3GPP TS 24.301V9.2.0 (2010-03): the lateral UE of network issues identification request IDENTITY
REQUEST, it is desirable that terminal device reporting equipment information (such as IMEI) is in evolution mobility management entity EMM connected state immediately
Terminal device can feedback identifying response IDENTITY RESPONSE to network side, network side is got from the response message
The IMEI of UE.
For example, before protection algorithm integrallty unlatching, the lateral UE of network is issued during UE initiates network insertion
IDENTITY REQUEST message, UE send IDENTITY when receiving IDENTITY REQUEST message, to network side
RESPONSE message realizes that network side obtains the IMEI of terminal device.Later, network side is according to the IMEI and pre-set different
Normal terminal library determines terminal class.For example, the IMEI of the higher terminal device of packet loss is stored in abnormal terminals library by network side
In, after getting the IMEI of terminal device, abnormal terminals library is searched according to the IMEI of terminal device, if can find identical
IMEI, it is determined that terminal class is abnormal terminals, otherwise terminal class be normal terminal, for abnormal terminals configure it is dedicated
ESRVCC parameter information uses existing general eSRVCC parameter information for normal terminal, wherein dedicated eSRVCC parameter is believed
Breath can determines according to actual conditions, such as setting handoff threshold is higher than general eSRVCC handoff threshold, in this way, for abnormal whole
End can enter eSRVCC switching flow in advance, after abnormal terminals are far from the overlay area LTE, can in time by VoLTE from
Ps domain is switched in the domain CS of 2G/3G.
Step S22, the radio resource control RRC reconfiguration message that network side issues is received, the RRC reconfiguration message is taken
With the corresponding enhancing single wireless voice calling continuity eSRVCC parameter information of the terminal class；
Specifically, the lateral UE of network issues radio resource control RRC reconfiguration message, and UE corresponding end is carried in the message
The enhancing single wireless voice calling continuity eSRVCC parameter information of classification is held, UE receives the RRC reconfiguration message, passes through solution
Analysis obtains eSRVCC parameter information.
For example, network side determines that the classification of UE is abnormal terminals, then carried into the RRC reconfiguration message that UE is issued dedicated
ESRVCC parameter information after UE receives the RRC reconfiguration message, obtains dedicated eSRVCC parameter information by parsing.
Step S23, in VoLTE communication process, if judgement knows that reception signal meets the eSRVCC parameter information and sets
Fixed condition then reports eSRVCC measurement event to report to the network side；
Specifically, it is carried out in VoLTE communication process in UE, UE real-time detection receives whether signal meets what network side issued
The condition of eSRVCC parameter information setting reports eSRVCC to survey if satisfied, then demonstrating the need for carrying out eSRVCC switching to network side
The report of amount event shows that UE can continue to use VoLTE communication, nothing if being unsatisfactory for the condition of eSRVCC parameter information setting
ESRVCC measurement event need to be reported to report to network side.For example, the corresponding terminal class of UE is abnormal terminals, then UE is received
RRC reconfiguration message carries dedicated eSRVCC parameter information, and UE real-time detection receives whether signal meets dedicated eSRVCC parameter
The condition of information setting reports eSRVCC measurement event report to network side if satisfied, then showing that UE needs to carry out eSRVCC switching
It accuses, carries out eSRVCC switching, voice communication is switched in the domain CS.It is dedicated eSRVCC parameter information since UE is received, with
General eSRVCC parameter information is different, therefore UE reports the triggered time of eSRVCC parameter information different, and UE is caused to carry out
ESRVCC switching time is different.For abnormal terminals, dedicated eSRVCC parameter information, which can be set, makes UE enter eSRVCC in advance
Switching flow, the problem of can not can thus switching in time to avoid abnormal terminals caused by general eSRVCC parameter information.
Step S24, the eSRVCC command messages that the network side issues are received, eSRVCC switching is carried out.
Specifically, after network side receives the eSRVCC measurement event report that UE is reported, eSRVCC order is issued to UE and is disappeared
Breath, UE execute eSRVCC switching command, after the completion of switching, call are carried on the domain CS, to guarantee the integrality of call.
For example, UE in access procedure, receives the identification request that network side issues, IMEI is reported into network side, net
Network flanks receive IMEI after, the abnormal terminals library being pre-designed is matched, if successful match, it is determined that the terminal class of UE is abnormal
Terminal, if it fails to match, it is determined that the terminal class of UE is normal terminal, and dedicated eSRVCC parameter is arranged for abnormal terminals
General eSRVCC parameter information is arranged for normal terminal in information.It later, is that UE establishes VoLTE carrying (QCI in network side
=1) after, network side issues eSRVCC parameter information to UE by RRC reconfiguration message, and what is issued to abnormal terminals is dedicated
ESRVCC parameter information, what is issued to normal terminal is general eSRVCC parameter information.UE receives eSRVCC parameter information
Later, whether real-time detection meets the condition of eSRVCC parameter information setting, and eSRVCC measurement event is reported to report if meeting,
After network side receives the report of eSRVCC measurement event, eSRVCC command messages are issued, UE carries out eSRVCC switching.
Voice service switching method provided in an embodiment of the present invention determines terminal class, needle according to the IMEI of terminal device
To different terminal class, different eSRVCC parameter informations is issued, all terminal devices under same cell is compensated for and connects
The defect that identical eSRVCC parameter information can only be received, improves the flexibility of network configuration, it can be ensured that various types of other
The continuity of the voice service of terminal device improves voice switching service quality.
On the basis of the above embodiments, further, the eSRVCC parameter information includes: the pre- of received signal strength
Gating limit；
Correspondingly, if the condition that signal meets the eSRVCC parameter information setting that receives is known in the judgement, to institute
Stating network side reports eSRVCC measurement event to report, comprising:
The received signal strength of real-time detection LTE network, if judgement knows that the received signal strength is less than described preset
Thresholding then starts different system cell measurement, measurement report is reported to the network side, so that the network side is according to the survey
Amount report issues eSRVCC command messages.
Specifically, network side determines the pre-determined threshold of received signal strength according to terminal class, then sends RRC weight to UE
Message is configured, the pre-determined threshold of received signal strength is carried, after UE receives the RRC reconfiguration message, by parsing, is obtained
Pre-determined threshold.It is carried out in VoLTE communication process in UE later, the received signal strength of real-time detection LTE network, and judges that this connects
It receives whether signal strength is less than pre-determined threshold, if being less than, shows that LTE network is weaker, continue VoLTE call, will cause
Measurement report is reported to network side, network side is according to measurement report at this point, UE starts different system cell measurement by dropped call
ESRVCC command messages are issued, wherein different system cell refers to that the serving cell current with terminal device belongs to different network formats
Adjacent area, for example, terminal device current area be LTE cell, different system cell be 2G/3G cell.The measurement report that UE is reported
In include different system cell received signal strength, network side according to received signal strength, determination will carry VoLTE call
The domain CS cell issues eSRVCC command messages to UE.
For example, the eSRVCC parameter that network side setting terminal class is abnormal terminals is -100dBm, indicate that UE receives signal
ESRVCC switching can be carried out when lower than -100dBm, setting terminal class is that the eSRVCC parameter of normal terminal is -110dBm,
ESRVCC switching can be carried out by indicating that UE is received when signal is lower than -110dBm.Later, network side has been set up UE's in determination
After VoLTE carrying, different terminal class is distinguished, the pre- of corresponding received signal strength is carried by RRC reconfiguration message
Gating limit, the pre-determined threshold of the received signal strength issued to abnormal terminals are -100dBm, the reception letter issued to normal terminal
The pre-determined threshold of number intensity is -110dBm.In this way, abnormal terminals are less than -100dBm in received signal strength but are greater than -110dBm
In the case where, eSRVCC switching flow is just triggered, compared with prior art, enters switching flow in advance, on the one hand, ensure that
Abnormal terminals are switched to the domain CS before far from LTE network in time, on the other hand, for same received signal strength, only switch
The VoLTE voice communication of a part, not will cause the domain CS adjacent cell pour in a large amount of calls and caused by speech quality is bad asks
Topic.
Voice service switching method provided in an embodiment of the present invention determines terminal class, needle according to the IMEI of terminal device
To different terminal class, different eSRVCC pre-determined thresholds is issued, all terminal devices under same cell is compensated for and connects
The defect that identical eSRVCC pre-determined threshold can only be received, improves the flexibility of network configuration, it can be ensured that various types of other
The continuity of the voice service of terminal device improves voice switching service quality.
Fig. 3 is the voice service switching method flow diagram that further embodiment of this invention provides, as shown in figure 3, the language
Sound business switching method includes:
Step S31, identification request is sent to terminal device；
Specifically, during UE initiates network insertion, before protection algorithm integrallty unlatching, the lateral UE of network issues knowledge
It does not invite and seeks IDENTITY REQUEST message, UE is sent when receiving IDENTITY REQUEST message to network side
IDENTITY RESPONSE message, the IMEI of the message carried terminal equipment, network side parse the response message, obtain terminal
The IMEI of equipment.
Step S32, the International Mobile Equipment Identity code IMEI that the terminal device is sent is received, according to the IMEI and in advance
The abnormal terminals library being first arranged determines the terminal class of the terminal device；
Specifically, network side parses the response message, obtains the IMEI of terminal device, and network side is by packet loss higher end
The IMEI of end equipment is stored in advance in abnormal terminals library, after getting the IMEI of terminal device, according to terminal device
IMEI searches abnormal terminals library, if identical IMEI can be found, it is determined that terminal class is abnormal terminals, otherwise terminal class
For normal terminal.
Step S33, enhancing single wireless voice calling continuity eSRVCC parameter information is determined according to the terminal class,
Radio resource control RRC reconfiguration message is sent to the terminal device, the RRC reconfiguration message carries the eSRVCC ginseng
Number information judges to receive whether signal meets the eSRVCC parameter letter so that the terminal device is in VoLTE communication process
Cease the condition of setting；
Specifically, dedicated eSRVCC parameter information is configured for abnormal terminals, for normal terminal using existing general
ESRVCC parameter information, wherein dedicated eSRVCC parameter information can determines according to actual conditions, such as setting thresholding is higher than logical
With eSRVCC parameter information, in this way, eSRVCC switching flow can be entered in advance for abnormal terminals, when abnormal terminals are separate
It, can be in time by VoLTE from the domain CS that ps domain is switched to 2G/3G behind the overlay area LTE.Later, it is built in network side for UE
After vertical VoLTE carrying (QCI=1), network side issues eSRVCC parameter information to UE by RRC reconfiguration message, to abnormal whole
Holding issue is dedicated eSRVCC parameter information, and what is issued to normal terminal is general eSRVCC parameter information.UE is received
To after eSRVCC parameter information, whether real-time detection meets the condition of eSRVCC parameter information setting, reports if meeting
The report of eSRVCC measurement event issues eSRVCC command messages after network side receives the report of eSRVCC measurement event, UE into
Row eSRVCC switching.
In practical applications, abnormal terminals can also be divided into multiple abnormal groups by network side, be assembled for each exception
A dedicated eSRVCC parameter information is set, furthermore network side each abnormal terminals can also be separately provided a dedicated eSRVCC
Parameter information, it is not limited in the embodiment of the present invention.
Later, network side issues corresponding eSRVCC parameter by RRC reconfiguration message and believes according to the terminal class of UE
Breath, UE receive the RRC reconfiguration message, obtain eSRVCC parameter information by parsing.Such as network side is in DRB carrying of eating dishes without rice or wine
(QCI=1) it establishes after completing, corresponding eSRVCC parameter information is issued by RRC reconfiguration message, carry out VoLTE in UE
In communication process, UE real-time detection receives the condition whether signal meets the eSRVCC parameter information setting that network side issues, if
Meet, then demonstrate the need for carrying out eSRVCC switching, report eSRVCC measurement event to report to network side, if being unsatisfactory for eSRVCC ginseng
The condition of number information setting then shows that UE can continue to use VoLTE communication, without reporting eSRVCC measurement event to network side
Report.
Step S34, the eSRVCC measurement event report that the terminal device reports is received；
Step S35, Xiang Suoshu terminal device sends eSRVCC command messages, cuts so that the terminal device carries out eSRVCC
It changes.
Specifically, after network side receives the eSRVCC measurement event report that UE is reported, eSRVCC order is issued to UE and is disappeared
Breath, UE execute eSRVCC switching command, after the completion of switching, call are carried on the domain CS, to guarantee the integrality of call.
Voice service switching method provided in an embodiment of the present invention determines terminal class, needle according to the IMEI of terminal device
To different terminal class, different eSRVCC parameter informations is issued, all terminal devices under same cell is compensated for and connects
The defect that identical eSRVCC parameter information can only be received, improves the flexibility of network configuration, it can be ensured that various types of other
The continuity of the voice service of terminal device improves voice switching service quality.
On the basis of the above embodiments, further, the pre-set abnormal terminals library is built according to following methods
It is vertical:
Obtain the first packet loss of all terminal devices in overlay area；
If judgement knows that first packet loss meets default abnormal terminals storage condition, the terminal device is stored
IMEI determines abnormal terminals library；
Wherein, for the default abnormal terminals storage condition in predetermined period, first packet loss is higher than the first thresholding
Number be greater than the second thresholding.
Specifically, Fig. 4 is abnormal terminals storage method process in voice service switching method provided in an embodiment of the present invention
Schematic diagram, as shown in figure 4, obtaining the packet loss of terminal device in real time after the IMEI of network side acquisition terminal device, being denoted as
First packet loss, judges whether the first packet loss meets abnormal terminals storage condition, if satisfied, then determining that the terminal device is different
Normal terminal, stores the IMEI of the terminal device, and the IMEI of all abnormal terminals constitutes abnormal terminals library.Wherein, it presets abnormal whole
Holding storage condition is that the first packet loss is higher than the first thresholding X1, and is higher than the number that X1 occurs in predetermined period and is greater than second
Limit Y1.That is, the packet loss of the corresponding abnormal terminals of IEMI in abnormal terminals library is higher and high packet loss occurs
The frequency is more, in this case, if abnormal terminals are issued with general eSRVCC parameter information, since high packet loss causes
Abnormal terminals can not receive eSRVCC parameter information in time, later so as to cause switching, and receive the weaker feelings of signal in LTE network
Under condition, it cannot be switched in time in the domain CS, cause speech quality bad.
In practical applications, after network side gets the IMEI of terminal device, abnormal terminals library is searched, if phase can be found
Same IMEI then shows that the terminal device is abnormal terminals, while network side obtains the packet loss of the terminal device, judges whether
Meet default abnormal terminals storage condition, the update abnormal terminal library if meeting.
If judging UE for abnormal terminals, the dedicated eSRVCC parameter information of network side arrangement abnormalities terminal, if judging, UE is
Normal terminal, network side use existing general eSRVCC parameter information.Such as general eSRVCC parameter is -110dBm, then
It is -100dBm that dedicated eSRVCC parameter, which can be set, in network side.Fig. 5 is voice service switching method provided in an embodiment of the present invention
The method flow schematic diagram of middle determining eSRVCC parameter information, as shown in figure 5, network side can also will be sent out in its coverage area
The IMEI for playing VoLTE calling terminal and the IMEI for receiving VoLTE called terminal are stored in IMEI storage unit, while history is different
The IMEI of normal terminal is stored in abnormal terminals IMEI unit, and two cell datas are compared in real time, if it find that current whole
The IMEI at end can be matched to the IMEI in abnormal terminals IMEI unit, then determining that the present terminal for abnormal terminals, determines
Corresponding abnormal terminals eSRVCC parameter configuration, if the IMEI of present terminal is matched less than in abnormal terminals IMEI unit
IMEI, then present terminal just uses general eSRVCC parameter configuration.
Voice service switching method provided in an embodiment of the present invention, according to packet loss by terminal device be divided into abnormal terminals and
Abnormal terminals are configured dedicated eSRVCC parameter information by normal terminal, configure general eSRVCC parameter information to normal terminal, more
It has mended all terminal devices under same cell and has connect the defect that can only receive identical eSRVCC parameter information, improved network
The flexibility of configuration, it can be ensured that the continuity of the voice service of abnormal terminals improves voice switching service quality.
On the basis of the various embodiments described above, further, preset if the judgement knows that first packet loss meets
Abnormal terminals are put in storage condition, then store the IMEI of the terminal device, determine abnormal terminals library, further includes:
Obtain the second packet loss of the corresponding terminal device of IMEI in the abnormal terminals library；
If judgement knows that second packet loss meets default abnormal terminals outbound condition, from the abnormal terminals library
Delete the IMEI；
Wherein, the default abnormal terminals outbound condition is in the predetermined period, and second packet loss is lower than the
The number of three thresholdings is less than the 4th thresholding.
Specifically, Fig. 6 is abnormal terminals warehouse-out method process in voice service switching method provided in an embodiment of the present invention
Schematic diagram, as shown in fig. 6, network side after determining abnormal terminals library, obtains the packet loss of abnormal terminals in real time, is denoted as second
Packet loss, judges whether the second packet loss meets abnormal terminals outbound condition, if satisfied, then by the corresponding IEMI of the terminal device
It is deleted from abnormal terminals library.Wherein, presetting abnormal terminals outbound condition is the second packet loss lower than third thresholding X2, and pre-
If the number in the period lower than X2 appearance is less than the 4th thresholding Y2.That is, the corresponding terminal of IEMI in abnormal terminals library
The packet loss of equipment is lower, in this case, if continuing to issue the terminal device the dedicated eSRVCC parameter of abnormal terminals
Information, will lead to the terminal device VoLTE call it is premature be switched in the domain CS, prevent user from enjoying VoLTE well
High definition voice communication, therefore, it is necessary to which the terminal device is rejected from abnormal terminals library, update abnormal terminal library.
Fig. 7 is the voice service switching method flow diagram that yet another embodiment of the invention provides, as shown in fig. 7, the language
Sound business switching method includes:
Step S71, network side obtains the IMEI of terminal device；
Step S72, network side matches abnormal terminals library, determines whether terminal device is abnormal terminals, if so, executing step
Rapid S73, it is no to then follow the steps S74；
Step S73, network side issues dedicated eSRVCC parameter information to UE by RRC reconfiguration message；
Step S74, network side issues general eSRVCC parameter information to UE by RRC reconfiguration message；
Step S75, UE judges whether the condition for meeting dedicated eSRVCC parameter setting, if so then execute step S77, otherwise
Terminate；
Step S76, UE judges whether the condition for meeting general eSRVCC parameter setting, if so then execute step S77, otherwise
Terminate；
Step S77, UE reports the event report for carrying out eSRVCC to network side；
Step S78, the lateral UE of network issues eSRVCC command messages, and UE executes eSRVCC process.
Fig. 8 is the signaling diagram for the voice service switching method that further embodiment of this invention provides, and wherein UE is terminal device,
ENB, MME, SGW and PGW are LTE network element, and ENB is base station, and MME is mobility management entity, and SGW is gateway, and PGW is
PND gateway, as shown in figure 8, voice service switching method includes:
Step S81, terminal device sends to base station and establishes RRC connection request RRCConnectionRequest；
Step S82, RRC connection message RRCConnectionSetup is established to terminal device feedback in base station；
Step S83, terminal device is sent to base station establishes RRC connection completion message
RRCConnectionSetupComplete；
Step S84, base station sends UE initial message INTIALUEMESSAGE to MME, wherein air interface initial message
For service request NAS-PDU=Service Request；
Step S85, MME sends initialization context to base station and establishes request INTIAL CONTEXT SETUP
REQUEST carries field setup-QCI9/QCI5, shows that MME has SRVCC function；
Step S86, base station sends identification request IDENTITY REQUEST to terminal device；
Step S87, terminal device sends identification response IDENTITY RESPONSE to base station, carries IMEI；
Step S88, security mode command SecurityModeCommand is established to terminal device transmission in base station；
Step S89, terminal establishes safe mode to base station feedback and completes response SecurityModeComplete；
Step S810, base station sends RRC reconfiguration message RRCConnectionReconfiguration to terminal device；
Step S811, terminal sends RRC to base station and reconfigures completion response
RRCConnectionReconfigurationComplete；
Step S812, base station sends initialization context to MME and establishes response INTIAL CONTEXT SETUP
RESPONSE；
Step S813, MME sends modification carrying request Modify Bearer Request to gateway；
Step S814, PDN Gateway sends modification carrying response Modify Bearer Response to MME；
Step S815, terminal device sends SIP signaling to PDN Gateway, carries INVITE field, and expression needs to establish
VoLTE call；
Step S816, PDN Gateway sends SIP signaling to terminal, carries 100Trying field；
Step S817, PDN Gateway is sent to gateway establishes carrying request Create Bearer Request；
Step S818, gateway is sent to MME establishes carrying request Create Bearer Request；
Step S819, MME sends E-RAB (Evolved Radio Access Bearer) to base station and establishes request E-RAB
SETUP REQUEST/ACTIVE DEDICATED EPS BEARER CONTEXT REQUEST；
Step S820, base station sends RRC reconfiguration message RRCConnectionReconfiguration to terminal device,
Carry ACTIVE DEDICATED EPS BEARER CONTEXT REQUEST information；
Step S821, terminal device sends RRC to base station and reconfigures completion response
RRCConnectionReconfigurationComplete；
Step S822, base station sends E-RAB setting response E-RAB SETUP RESPONSE to MME；
Step S823, terminal device sends UL information to base station and transmits UL Information Transfer, carries
ACTIVATE DEDICATED EPS BEARER CONTEXT ACCEPT information；
Step S824, base station sends uplink Non-Access Stratum direct-sending message UPLINK NAS TRANSPORT to MME, carries
ACTIVATE DEDICATED EPS BEARER CONTEXT ACCEPT information；
Step S825, MME is sent to gateway establishes carrying response Create Bearer Response；
Step S826, gateway is sent to PDN Gateway establishes carrying response Create Bearer Response；
Step S827, base station sends RRC reconfiguration message RRCConnectionReconfiguration to terminal device,
Carry eSRVCC parameter information；
Step S828, terminal device sends RRC to base station and reconfigures completion response
RRCConnectionReconfigurationComplete；
Step S829, terminal device sends measurement report Measurement Report to base station；
Step S830, base station sends handover request Handover Required to mobile station；
Step S831, MME sends PS-to-CS request to PDN Gateway, carries IMSI, Target id Target-ID and STN-
SR (Session Transfer Number-Single Radio) parameter, the wherein domain CS (Circuit SwitchedDomain)
For circuit commutative field, the domain (Packet SwitchedDomain.) PS is packet-switched domain；
Step S832, PDN Gateway sends PS-to-CS response to MME；
Step S833, MME sends switching command Handover Command to base station；
Step S834, base station sends cell transformation order MobilityFromEUTRACommand to terminal device, carries
The information such as switching cell, terminal device carry out eSRVCC process.
Wherein, step S86- step S87 is the IMEI process that base station obtains terminal device；Step S810- step S818 is
Terminal device initiates VoLTE call, and core net establishes QCI=1 carrying；Step S819- step S822 is that base station detects whether
It is set up QCI=1 carrying, i.e. whether terminal is in VoLTE communication；Step S827- step S828 is that base station issues eSRVCC
Parameter information；It is that eSRVCC is reported, adjudicated and implementation procedure after step S29.
Voice service switching method provided in an embodiment of the present invention, according to packet loss by terminal device be divided into abnormal terminals and
Normal terminal configures dedicated eSRVCC parameter information to abnormal terminals, configures general eSRVCC parameter information to normal terminal, and
Real-time update abnormal terminals library, identical eSRVCC parameter can only be received by compensating for all terminal devices under same cell and connecing
The defect of information improves the flexibility of network configuration, it can be ensured that the continuity of the voice service of abnormal terminals improves language
Sound switches service quality.
The structural schematic diagram of Fig. 9 terminal device provided in an embodiment of the present invention, as shown in figure 9, the terminal device includes:
One sending module 91, the first receiving module 92, reporting module 93 and switching module 94, in which:
First sending module 91 is used to receive the identification request that network side issues, and Xiang Suoshu network side sends international movement and sets
Standby identity code IMEI, so that the network side determines terminal class according to the IMEI and pre-set abnormal terminals library；The
One receiving module 92 for receiving the radio resource control RRC reconfiguration message that network side issues, take by the RRC reconfiguration message
With the corresponding enhancing single wireless voice calling continuity eSRVCC parameter information of the terminal class；Reporting module 93 is used for
In VoLTE communication process, if the condition that signal meets the eSRVCC parameter information setting that receives is known in judgement, to the net
Network side reports eSRVCC measurement event to report；Switching module 94 is used to receive the eSRVCC command messages that the network side issues,
Carry out eSRVCC switching.
After first sending module 91 receives IDENTITY REQUEST message, IDENTITY is sent to network side
RESPONSE message realizes that network side obtains the IMEI of terminal device.Later, network side is according to the IMEI and pre-set different
Normal terminal library determines terminal class, for example, UE is divided to by pre-set abnormal terminals library for two classes, abnormal terminals by network side
And normal terminal, dedicated eSRVCC parameter information is configured for abnormal terminals, for normal terminal using existing general
ESRVCC parameter information, wherein dedicated eSRVCC parameter information can be determines according to actual conditions.Network lateral first receives mould
Block 92 issues radio resource control RRC reconfiguration message, the enhancing single wireless audio call of carried terminal classification in the message
Continuity eSRVCC parameter information, the first receiving module 92 receive the RRC reconfiguration message, obtain eSRVCC parameter by parsing
Information.
It is carried out in VoLTE communication process in UE, whether 93 real-time detection of reporting module reception signal, which meets network side, issues
The setting of eSRVCC parameter information condition, if satisfied, then demonstrating the need for carrying out eSRVCC switching, reporting module 93 is to network side
It reports eSRVCC measurement event to report, if being unsatisfactory for the condition of eSRVCC parameter information setting, shows that UE can be continued to use
VoLTE communication, without reporting eSRVCC measurement event to report to network side.Network side receives the eSRVCC measurement thing that UE is reported
After part report, eSRVCC command messages are issued to switching module 94, switching module 94 executes eSRVCC switching command, and switching is completed
Afterwards, call is carried on the domain CS, to guarantee the integrality of call.Terminal device provided in an embodiment of the present invention, for real
The existing above method, function is referring in particular to above method embodiment, and details are not described herein again.
Terminal device provided in an embodiment of the present invention determines terminal class according to the IMEI of terminal device, for different
Terminal class issues different eSRVCC parameter informations, compensates for all terminal devices under same cell and connects and can only receive
The defect of identical eSRVCC parameter information, improves the flexibility of network configuration, it can be ensured that various types of other terminal device
Voice service continuity, improve voice switching service quality.
The structural schematic diagram for the network side equipment that Figure 10 inventive embodiments provide, as shown in Figure 10, the network side equipment packet
It includes: the second sending module 101, categorization module 102, parameter configuration module 103, the second receiving module 104 and third sending module
105, in which:
Second sending module, 101 terminal device sends identification request；Categorization module 102 receives the state that the terminal device is sent
Border mobile equipment identity code IMEI determines the terminal class of the terminal device according to the pre-set abnormal terminals library the IMEI
Not；Parameter configuration module 103 determines enhancing single wireless voice calling continuity eSRVCC parameter information according to the terminal class,
Radio resource control RRC reconfiguration message is sent to the terminal device, the RRC reconfiguration message carries the eSRVCC ginseng
Number information judges to receive whether signal meets the eSRVCC parameter letter so that the terminal device is in VoLTE communication process
Cease the condition of setting；Second receiving module 104 receives the eSRVCC measurement event report that the terminal device reports；Third sends mould
Block 105 states terminal device and sends eSRVCC command messages, so that the terminal device carries out eSRVCC switching.
Specifically, the second sending module 101 issues identification request IDENTITY REQUEST to UE, it is desirable that on terminal device
It reports facility information (such as IMEI), the terminal device for being in evolution mobility management entity EMM connected state immediately can feedback identifying sound
Answer IDENTITY RESPONSE to categorization module 102, categorization module 102 gets the IMEI of UE from the response message.Classification
Module 102 determines terminal class according to the pre-set abnormal terminals library the IMEI, for example, it is two that UE is divided to by categorization module 102
Class, abnormal terminals and normal terminal.
Parameter configuration module 103 configures dedicated eSRVCC parameter information for abnormal terminals, for normal terminal using existing
The general eSRVCC parameter information having.After second receiving module 104 receives the eSRVCC measurement event report that UE is reported, third
Sending module 105 issues eSRVCC command messages to UE, and UE executes eSRVCC switching command, and after the completion of switching, call is carried
On the domain CS, to guarantee the integrality of call.Device provided in an embodiment of the present invention, for realizing the above method, function
Referring in particular to above method embodiment, details are not described herein again.
Network side equipment provided in an embodiment of the present invention determines terminal class according to the IMEI of terminal device, for difference
Terminal class, issue different eSRVCC parameter informations, compensate for all terminal devices under same cell and connect and can only receive
To the defect of identical eSRVCC parameter information, the flexibility of network configuration is improved, it can be ensured that various types of other terminal is set
The continuity of standby voice service improves voice switching service quality.
The structural schematic diagram for the voice service switching system that Figure 11 inventive embodiments provide, as shown in figure 11, the voice
Service switchover system includes: at least one terminal device 111 and network side equipment 112, in institute's voice traffic switching system
Terminal device 111, referring in particular to above-mentioned terminal device embodiment, the network side in institute's voice traffic switching system is set function
Standby 112, function is referring in particular to above-mentioned network side equipment embodiment, and details are not described herein again.
Figure 12 is the structural schematic diagram of electronic equipment provided in an embodiment of the present invention, and as shown in figure 12, the equipment includes:
Processor (processor) 121, memory (memory) 122 and bus 123；
Wherein, processor 121 and memory 122 complete mutual communication by the bus 123；
Processor 121 is used to call the program instruction in memory 122, to execute provided by above-mentioned each method embodiment
Method, for example, receive the identification request that network side issues, Xiang Suoshu network side sends International Mobile Equipment Identity code
IMEI, so that the network side determines terminal class according to the IMEI and pre-set abnormal terminals library；Receive network side
The radio resource control RRC reconfiguration message issued, it is single that the RRC reconfiguration message carries the corresponding enhancing of the terminal class
One wireless voice call continuity eSRVCC parameter information；In VoLTE communication process, if judgement knows that receiving signal meets institute
The condition of eSRVCC parameter information setting is stated, then reports eSRVCC measurement event to report to the network side；Receive the network
The eSRVCC command messages that side issues carry out eSRVCC switching.
The embodiment of the present invention discloses a kind of computer program product, and the computer program product is non-transient including being stored in
Computer program on computer readable storage medium, the computer program include program instruction, when described program instructs quilt
When computer executes, computer is able to carry out method provided by above-mentioned each method embodiment, for example, receives under network side
The identification of hair is requested, and Xiang Suoshu network side sends International Mobile Equipment Identity code IMEI, so that the network side is according to
IMEI and pre-set abnormal terminals library determine terminal class；The radio resource control RRC that network side issues is received to reconfigure
Message, the RRC reconfiguration message carry the corresponding enhancing single wireless voice calling continuity eSRVCC of the terminal class
Parameter information；In VoLTE communication process, if judgement, which is known, receives the item that signal meets the eSRVCC parameter information setting
Part then reports eSRVCC measurement event to report to the network side；The eSRVCC command messages that the network side issues are received, into
Row eSRVCC switching.
The embodiment of the present invention provides a kind of non-transient computer readable storage medium, the non-transient computer readable storage
Medium storing computer instruction, the computer instruction make the computer execute side provided by above-mentioned each method embodiment
Method, for example, the identification request that network side issues is received, Xiang Suoshu network side sends International Mobile Equipment Identity code IMEI,
So that the network side determines terminal class according to the IMEI and pre-set abnormal terminals library；Receive what network side issued
Radio resource control RRC reconfiguration message, the RRC reconfiguration message carry the corresponding enhancing single wireless of the terminal class
Continuous voice call eSRVCC parameter information；In VoLTE communication process, received described in signal satisfaction if judgement is known
The condition of eSRVCC parameter information setting, then report eSRVCC measurement event to report to the network side；Receive the network side
The eSRVCC command messages issued carry out eSRVCC switching.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light
The various media that can store program code such as disk.
The embodiments such as device described above are only schematical, wherein the unit as illustrated by the separation member
It may or may not be physically separated, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the embodiment of the present invention, rather than it is right
It is limited；Although the embodiment of the present invention is described in detail referring to foregoing embodiments, the ordinary skill of this field
Personnel are it is understood that it is still possible to modify the technical solutions described in the foregoing embodiments, or to part
Or all technical features are equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution
The range of each embodiment technical solution of the embodiment of the present invention.
Claims (10)
1. a kind of voice service switching method characterized by comprising
The identification request that network side issues is received, Xiang Suoshu network side sends International Mobile Equipment Identity code IMEI, for described
Network side determines terminal class according to the IMEI and pre-set abnormal terminals library；
The radio resource control RRC reconfiguration message that network side issues is received, the RRC reconfiguration message carries the terminal class
Not corresponding enhancing single wireless voice calling continuity eSRVCC parameter information；
In VoLTE communication process, if the condition that signal meets the eSRVCC parameter information setting that receives is known in judgement, to
The network side reports eSRVCC measurement event to report；
The eSRVCC command messages that the network side issues are received, eSRVCC switching is carried out.
2. the method according to claim 1, wherein the eSRVCC parameter information includes: received signal strength
Pre-determined threshold；
Correspondingly, if the condition that signal meets the eSRVCC parameter information setting that receives is known in the judgement, to the net
Network side reports eSRVCC measurement event to report, comprising:
The received signal strength of real-time detection LTE network, if judgement knows that the received signal strength is less than the pre-determined threshold,
Then start different system cell measurement, measurement report is reported into the network side, so that the network side is reported according to the measurement
Announcement issues eSRVCC command messages.
3. a kind of voice service switching method characterized by comprising
Identification request is sent to terminal device；
The International Mobile Equipment Identity code IMEI that the terminal device is sent is received, according to the IMEI and pre-set exception
Terminal library determines the terminal class of the terminal device；
Enhancing single wireless voice calling continuity eSRVCC parameter information is determined according to the terminal class, and Xiang Suoshu terminal is set
Preparation send radio resource control RRC reconfiguration message, and the RRC reconfiguration message carries the eSRVCC parameter information, for
The terminal device judges to receive the item whether signal meets the eSRVCC parameter information setting in VoLTE communication process
Part；
Receive the eSRVCC measurement event report that the terminal device reports；
ESRVCC command messages are sent to the terminal device, so that the terminal device carries out eSRVCC switching.
4. according to the method described in claim 3, it is characterized in that, the pre-set abnormal terminals library is according to following methods
It establishes:
Obtain the first packet loss of all terminal devices in overlay area；
If judgement knows that first packet loss meets default abnormal terminals storage condition, the terminal device is stored
IMEI determines abnormal terminals library；
Wherein, the default abnormal terminals storage condition is in predetermined period, and first packet loss is higher than the first thresholding
Number is greater than the second thresholding.
5. according to the method described in claim 4, it is characterized in that, if the judgement knows that the first packet loss satisfaction is default
Abnormal terminals are put in storage condition, then store the IMEI of the terminal device, determine abnormal terminals library, further includes:
Obtain the second packet loss of the corresponding terminal device of IMEI in the abnormal terminals library；
If judgement knows that second packet loss meets default abnormal terminals outbound condition, deleted from the abnormal terminals library
The IMEI；
Wherein, the default abnormal terminals outbound condition is in the predetermined period, and second packet loss is lower than third door
The number of limit is less than the 4th thresholding.
6. a kind of terminal device characterized by comprising
First sending module, the identification request issued for receiving network side, Xiang Suoshu network side send international mobile device body
Part code IMEI, so that the network side determines terminal class according to the IMEI and pre-set abnormal terminals library；
First receiving module, the radio resource control RRC reconfiguration message issued for receiving network side, the RRC are reconfigured
Message carries the corresponding enhancing single wireless voice calling continuity eSRVCC parameter information of the terminal class；
Reporting module is used in VoLTE communication process, if judgement knows that reception signal meets the eSRVCC parameter information and sets
Fixed condition then reports eSRVCC measurement event to report to the network side；
Switching module, the eSRVCC command messages issued for receiving the network side carry out eSRVCC switching.
7. a kind of network side equipment characterized by comprising
Second sending module, for sending identification request to terminal device；
Categorization module, the International Mobile Equipment Identity code IMEI sent for receiving the terminal device, according to the IMEI and
Pre-set abnormal terminals library determines the terminal class of the terminal device；
Parameter configuration module, for determining enhancing single wireless voice calling continuity eSRVCC parameter according to the terminal class
Information, Xiang Suoshu terminal device send radio resource control RRC reconfiguration message, described in the RRC reconfiguration message carries
It is described to judge whether reception signal meets so that the terminal device is in VoLTE communication process for eSRVCC parameter information
The condition of eSRVCC parameter information setting；
Second receiving module, the eSRVCC measurement event report reported for receiving the terminal device；
Third sending module, for sending eSRVCC command messages to the terminal device, for terminal device progress
ESRVCC switching.
8. a kind of voice service switching system, which is characterized in that including at least one terminal device as claimed in claim 6 and
Network side equipment as claimed in claim 7.
9. a kind of electronic equipment characterized by comprising
Memory and processor, the processor and the memory complete mutual communication by bus；The memory
It is stored with the program instruction that can be executed by the processor, the processor calls described program instruction to be able to carry out right such as and wants
Seek 1 to 5 any method.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
Method as claimed in claim 1 to 5 is realized when being executed by processor.
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