CN103249019B - The processing method of a kind of single wireless voice calling continuity and system - Google Patents
The processing method of a kind of single wireless voice calling continuity and system Download PDFInfo
- Publication number
- CN103249019B CN103249019B CN201310116484.1A CN201310116484A CN103249019B CN 103249019 B CN103249019 B CN 103249019B CN 201310116484 A CN201310116484 A CN 201310116484A CN 103249019 B CN103249019 B CN 103249019B
- Authority
- CN
- China
- Prior art keywords
- srvcc
- mme
- ability information
- subscriber equipment
- base station
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
Embodiments provide processing method and the system of a kind of single wireless voice calling continuity, after the SRVCC ability information of SRVCC ability information or UE to solve MME changes, base station cannot be notified in time, and cause the mistake in judgment of base station, the problem causing handoff failure.The embodiment of the present invention is due to when the SRVCC ability information of MME and/or the SRVCC ability information of subscriber equipment change, information after can changing in time notifies to base station, therefore base station can be according to the SRVCC ability information of the MME after changing and the SRVCC ability information of subscriber equipment, judge currently whether can initiate SRVCC handover request, such that it is able to avoid base station mistake in judgment, improve the success rate of switching.
Description
Technical field
The present embodiments relate to communication technical field, particularly relate to a kind of single wireless audio call even
The processing method of continuous property and system.
Background technology
Existing GSM EDGE Radio Access Network (GSM EDGE Radio Access Network,
GERAN) and UMTS Terrestrial radio access network (UMTS Terrestrial Radio Access Network,
UTRAN), on the basis of, 3GPP starts Long Term Evolution (Long Term Evolution, LTE)
Standard chemical industry with System Architecture Evolution (System Architecture Evolution, SAE) two plan greatly
Make.
At LTE network first stage of construction, its limited coverage area, when user is using LTE network to carry out
In voice call process, move to LTE signal more weak, but GERAN/UTRAN network signal covers
Preferably during region, in order to ensure continuous voice call (Voice Call Continuity, VCC), need
Speech channel is switched to GERAN/UTRAN by LTE.Due to there is presently no can at LTE and
GERAN/UTRAN adheres to and the terminal of transceiving data, the therefore industry between LTE and 2G/3G simultaneously
Business seriality is all based on Single Radio pattern, i.e. double-mode single-standby mode.3GPP has formulated at present
Go out the voice business continuity scheme of double-mode single-standby mode, i.e. the list proposed in 3GPP TS23.216R9
One wireless voice call seriality (Single Radio Voice Call Continuity, SRVCC) scheme.
SRVCC refers to single wireless mode terminal from timesharing Long Term Evolution (Time Division Long
Term Evolution, TD-LTE) network is switched to the business of voice call during UTRAN/GERAN
Seriality.The decision-making of SRVCC is to complete in evolved base station (evolved Node B, eNB) side,
Upon a user request, Mobility Management Entity (Mobility Management Entity, MME) meeting
The comprehensive SRVCC ability information of self and the SRVCC ability information of UE obtain comprehensive SRVCC energy
Force information, then notifies this information, to eNB, to switch over judgement by eNB, only at MME
When all supporting SRVCC ability with UE, eNB just can initiate SRVCC handover request for this UE.
But, when UE is in connected state, if the SRVCC ability information of MME or UE
SRVCC ability information change, MME can not notify eNB in time, and eNB therefore can be caused to protect
The situation that the SRVCC ability information deposited is inconsistent with current SRVCC ability information, thus cause
The mistake in judgment of eNB, causes handoff failure.
Summary of the invention
The embodiment of the present invention provides processing method and the system of a kind of single wireless voice calling continuity, with
After the SRVCC ability information of the SRVCC ability information or UE that solve MME changes, it is impossible to
Notify base station in time, and cause the mistake in judgment of base station, the problem causing handoff failure.
In order to solve the problems referred to above, the invention discloses the process of a kind of single wireless voice calling continuity
Method, including:
When MME and base station are set up and be connected, transmission S1 sets up response message to base station, and described S1 builds
Vertical response message adds the initial SRVCC ability information of described MME；
MME resolves the initial SRVCC ability information obtaining subscriber equipment, by described subscriber equipment
Initial SRVCC ability information generates comprehensive SRVCC energy with the initial SRVCC ability information of MME
Force information, and by described comprehensive SRVCC capacity information notice to base station；
When the SRVCC ability information of MME and/or the SRVCC ability information of subscriber equipment change,
MME will change after the SRVCC ability information of MME and/or subscriber equipment after changing
SRVCC capacity information notice is to base station.
Alternatively, described MME will change after the SRVCC capacity information notice of MME to base station,
Including:
The SRVCC ability information of the MME after changing is added MME to and is joined in more new information；
Described MME is joined more new information and is sent to base station.
Alternatively, when the SRVCC ability information of subscriber equipment changes, after MME will change
Before the SRVCC capacity information notice of subscriber equipment is to base station, also include:
MME receives the tracing section updating request message that subscriber equipment sends；
The SRVCC ability letter of the subscriber equipment after changing is extracted from described tracing section updating request message
Breath.
Alternatively, the SRVCC capacity information notice of the subscriber equipment after described MME will change is to base
Stand, including:
The SRVCC ability information of the subscriber equipment after changing adds customer equipment context amendment to please
Ask in message；
Described customer equipment context amendment request message is sent to base station.
Alternatively, the SRVCC capacity information notice of the subscriber equipment after described MME will change is to base
Stand, including:
The SRVCC ability information of the subscriber equipment after changing adds downlink NAS direct-sending message to
In；
Described SRVCC ability information is sent to base station by downlink NAS direct-sending message.
Alternatively, described MME by described comprehensive SRVCC capacity information notice to base station, including:
Described comprehensive SRVCC ability information is added to subscriber equipment initial context and sets up request message
In；
By subscriber equipment initial context, described comprehensive SRVCC ability information is set up request message send out
Give base station.
Alternatively, described MME resolves the initial SRVCC ability information obtaining subscriber equipment, including:
Receive the Attach Request message that subscriber equipment sends；
The initial SRVCC ability information of subscriber equipment is extracted from described Attach Request message.
On the other hand, the invention also discloses the processing system of a kind of single wireless voice calling continuity,
Including:
Sending module, for when MME and base station are set up and are connected, transmission S1 set up response message to
Base station, described S1 sets up the initial SRVCC ability information adding described MME in response message；
First notification module, for resolving the initial SRVCC ability information obtaining subscriber equipment, by institute
The initial SRVCC ability information of the initial SRVCC ability information and MME of stating subscriber equipment generates to be combined
Close SRVCC ability information, and by described comprehensive SRVCC capacity information notice to base station；
Second notification module, for when the SRVCC ability information of MME and/or subscriber equipment
When SRVCC ability information changes, the SRVCC ability information of the MME after changing and/or change
After the SRVCC capacity information notice of subscriber equipment to base station.
Alternatively, described second notification module includes:
MME information adds submodule, and the SRVCC ability information of the MME after changing is added
Join in more new information to MME；
MME message sends submodule, is sent to base station for described MME is joined more new information.
Alternatively, also include:
Receiver module, for when the SRVCC ability information of subscriber equipment changes, after changing
Before the SRVCC capacity information notice of subscriber equipment is to base station, receive the tracking area that subscriber equipment sends
More newly requested message；
Extraction module, for extracting the subscriber equipment after changing from described tracing section updating request message
SRVCC ability information.
Alternatively, described second notification module includes:
The first information adds submodule, and the SRVCC ability information of the subscriber equipment after changing adds
It is added in customer equipment context amendment request message；
First message sends submodule, for described customer equipment context amendment request message being sent to
Base station.
Alternatively, described second notification module includes:
Second information adds submodule, and the SRVCC ability information of the subscriber equipment after changing adds
It is added in downlink NAS direct-sending message；
Second message sends submodule, for described downlink NAS direct-sending message is sent to base station.
Alternatively, described first notification module includes:
Integrated information adds submodule, sets for adding described comprehensive SRVCC ability information to user
Standby initial context is set up in request message；
User equipment message sends submodule, for the described subscriber equipment initial context request of setting up being disappeared
Breath is sent to base station.
Alternatively, described first notification module includes:
Message sink submodule, for receiving the Attach Request message that subscriber equipment sends；
Information retrieval submodule, for extracting the initial of subscriber equipment from described Attach Request message
SRVCC ability information.
Compared with prior art, the embodiment of the present invention includes advantages below:
In the embodiment of the present invention when MME is connected with base station foundation, MME will send S1 and set up response
Message, to base station, sets up the initial SRVCC ability adding described MME in response message at described S1
Information, upon a user request, MME resolves the initial SRVCC ability information obtaining subscriber equipment,
The initial SRVCC ability information of described subscriber equipment is raw with the initial SRVCC ability information of MME
Become comprehensive SRVCC ability information, and by described comprehensive SRVCC capacity information notice to base station, and
And when the SRVCC ability information of MME and/or the SRVCC ability information of subscriber equipment change,
MME is by the SRVCC ability information of the MME after described change and/or the subscriber equipment after changing
SRVCC capacity information notice is to base station.Due to the SRVCC ability information of MME and/or user
When the SRVCC ability information of equipment changes, can in time the information after change be notified to base station, because of
This base station can be according to the SRVCC ability information of the MME after changing and the SRVCC of subscriber equipment
Ability information, it is judged that currently whether can initiate SRVCC handover request, such that it is able to avoid base station to sentence
Certainly mistake, improves the success rate of switching.
Accompanying drawing explanation
Fig. 1 is the processing method of a kind of single wireless voice calling continuity that the embodiment of the present invention one proposes
Flow chart；
Fig. 2 is the processing method of a kind of single wireless voice calling continuity that the embodiment of the present invention two proposes
Flow chart；
Fig. 3 is the processing system of a kind of single wireless voice calling continuity that the embodiment of the present invention three proposes
Structured flowchart.
Detailed description of the invention
Understandable, below in conjunction with the accompanying drawings for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from
The present invention is further detailed explanation with detailed description of the invention.
The embodiment of the present invention SRVCC ability information at MME and/or the SRVCC energy of subscriber equipment
When force information changes, the information after can changing in time notifies to base station, and therefore base station can be according to changing
The SRVCC ability information of the MME after change and the SRVCC ability information of subscriber equipment, accurately judge
Currently whether can carry out SRVCC switching, improve the success rate of switching.
Embodiment one:
SRVCC scheme mainly solves the problem existed during deployment of LTE network speech business, at LTE net
Under network, terminal uses Voice over LTE based on IMS to set up voice service；When LTE is not reaching to
When the whole network covers, along with the movement of user, ongoing speech business can face leaves LTE covering model
Enclose rear voice can continuous print problem, at this moment, voice can be switched to circuit domain by SRVCC, thus
Ensure not interrupting of voice call.
The decision-making of SRVCC completes in eNB side, and upon a user request, UE can be at attachment stream
The initial SRVCC ability information of self is passed to by journey MME, MME can comprehensive self
The SRVCC ability information of SRVCC ability information and UE obtains comprehensive SRVCC ability information, so
After by this comprehensive SRVCC capacity information notice to eNB, switch over judgement by eNB, only exist
When MME and UE all supports SRVCC ability, eNB just can initiate SRVCC for this UE and cut
Change request.
But, when UE is in connected state, if the SRVCC ability information of MME or UE
SRVCC ability information change, MME can not notify eNB in time, and eNB therefore can be caused to protect
The situation that the SRVCC ability information deposited is inconsistent with current SRVCC ability information, thus cause
The mistake in judgment of eNB, causes handoff failure.
For above-mentioned situation, the embodiment of the present invention proposes the processing method of a kind of SRVCC, the method
To be able to change when the SRVCC ability information of the SRVCC ability information of MME or UE changes
SRVCC ability information after change notifies in time to base station.
With reference to Fig. 1, it is shown that a kind of single wireless voice calling continuity that the embodiment of the present invention one proposes
The flow chart of processing method, the method specifically may include that
Step 100, when MME and base station are set up and be connected, transmission S1 sets up response message to base station,
Described S1 sets up the initial SRVCC ability information adding described MME in response message.
In the embodiment of the present invention, when MME is connected with base station foundation, MME can send S1 to base station
Setting up response message (S1SETUP RESPONSE), now, MME can initial by self
SRVCC ability information is added in S1SETUP RESPONSE message, then by this S1SETUP
RESPONSE message is sent to base station, thus notifies the initial SRVCC ability of base station MME self
Information.
Step 102, MME resolves the initial SRVCC ability information obtaining subscriber equipment, by described use
The initial SRVCC ability information of family equipment generates comprehensive with the initial SRVCC ability information of MME
SRVCC ability information, and by described comprehensive SRVCC capacity information notice to base station.
When UE request set up network connect time, UE can send related news to MME, can be by
The initial SRVCC ability information of UE self passes through MME by this message.Then MME resolves
Obtain the initial SRVCC ability information of subscriber equipment, and can comprehensive described subscriber equipment initial
SRVCC ability information and the initial SRVCC ability information of MME, generate comprehensive SRVCC ability
Information, and by described comprehensive SRVCC capacity information notice to base station.
Step 104, when SRVCC ability information and/or the SRVCC ability letter of subscriber equipment of MME
When breath changes, MME is by the SRVCC ability information of the MME after described change and/or after changing
The SRVCC capacity information notice of subscriber equipment is to base station.
When UE is in connected state, the SRVCC ability information of UE it may happen that change, and,
The SRVCC ability information of MME is possibly also owing to join reason and change, if MME or UE
SRVCC ability information change, and base station is according further to initial by UE received before
The comprehensive SRVCC that the initial SRVCC ability information of SRVCC ability information and MME comprehensively generates
Ability information switches over judgement, then may result in mistake in judgment.
Therefore, this step 104 proposes, when SRVCC ability information and/or the subscriber equipment of MME
SRVCC ability information change time, MME can by change after MME SRVCC ability letter
The SRVCC capacity information notice of the subscriber equipment after breath and/or change is to base station.
By the SRVCC ability information obtained in each step above, when switching over judgement, base
Stand and can judge for the different SRVCC ability information received above according to different situations,
Thus decide whether to initiate SRVCC handover request.
For the detailed process of each step above-mentioned, will be discussed in detail in following embodiment two.
In the embodiment of the present invention when MME is connected with base station foundation, MME will send S1 and set up response
Message, to base station, sets up the initial SRVCC ability adding described MME in response message at described S1
Information, upon a user request, MME resolves the initial SRVCC ability information obtaining subscriber equipment,
The initial SRVCC ability information of described subscriber equipment is raw with the initial SRVCC ability information of MME
Become comprehensive SRVCC ability information, and by described comprehensive SRVCC capacity information notice to base station, and
And when the SRVCC ability information of MME and/or the SRVCC ability information of subscriber equipment change,
MME is by the SRVCC ability information of the MME after described change and/or the subscriber equipment after changing
SRVCC capacity information notice is to base station.Due to the SRVCC ability information of MME and/or user
When the SRVCC ability information of equipment changes, can in time the information after change be notified to base station, because of
This base station can be according to the SRVCC ability information of the MME after changing and the SRVCC of subscriber equipment
Ability information, it is judged that currently whether can initiate SRVCC handover request, such that it is able to avoid base station to sentence
Certainly mistake, improves the success rate of switching.
Embodiment two:
With reference to Fig. 2, it is shown that a kind of single wireless voice calling continuity that the embodiment of the present invention two proposes
The flow chart of processing method, the method may include that
Step 200, when MME and base station are set up and be connected, transmission S1 sets up response message to base station,
Described S1 sets up the initial SRVCC ability information adding described MME in response message.
In the embodiment of the present invention, when MME is connected with base station foundation, MME can send to base station
S1SETUP RESPONSE message, now, the initial SRVCC ability of self can be believed by MME
Breath adds in this S1SETUP RESPONSE message, such that it is able to by the initial SRVCC of MME
Capacity information notice is to base station.
Such as, the embodiment of the present invention can add " SRVCC in S1SETUP RESPONSE message
Operation possible(SRVCC operates probability) " field, as shown in Table 1.
Table one
It is somebody's turn to do " SRVCC operation possible " field list and understands the initial SRVCC ability of MME
Information, base station i.e. would know that whether support SRVCC energy when MME is initial according to the information in this field
Power.
Judge whether prop up when MME is initial for example, it is possible to set by the value of bit a certain in this field
Hold SRVCC ability, support SRVCC ability as represented during for 0 when MME is initial, be to represent when 1
SRVCC ability is not supported when MME is initial.
It is, of course, also possible to represented the initial SRVCC ability of MME by other information in this field
Information, this is not any limitation as by the embodiment of the present invention.
Step 202, MME resolves the initial SRVCC ability information obtaining subscriber equipment, by described use
The initial SRVCC ability information of family equipment generates comprehensive with the initial SRVCC ability information of MME
SRVCC ability information, and by described comprehensive SRVCC capacity information notice to base station.
When UE has network connecting request, Attach Request message (ATTACH can be sent to MME
REQUEST), when sending this ATTACH REQUEST message, UE can initial by self
SRVCC ability information is added in this message.
Therefore, in this step 202, described MME resolves the initial SRVCC obtaining subscriber equipment
The process of ability information specifically may include that
A1, receives the Attach Request message that subscriber equipment sends.
A2, extracts the initial SRVCC ability information of subscriber equipment from described Attach Request message.
For the concrete initial SRVCC ability letter extracting subscriber equipment from described Attach Request message
The process of breath, those skilled in the art carry out relevant treatment, the embodiment of the present invention according to practical experience
No longer it is discussed in detail at this.
MME after the initial SRVCC ability information extracting UE, initial by UE further
SRVCC ability information carries out comprehensively with the initial SRVCC ability information of MME, generates comprehensive
SRVCC ability information.This integration capability information can include supporting SRVCC ability and not supporting
SRVCC ability two kinds.
Such as,
If the initial SRVCC ability information of UE is not for support SRVCC ability, MME's is initial
SRVCC ability information is not for support SRVCC ability, then this comprehensive SRVCC ability information is not for prop up
Hold SRVCC ability；
If the initial SRVCC ability information of UE is not for support SRVCC ability, MME's is initial
SRVCC ability information is for supporting SRVCC ability, then this comprehensive SRVCC ability information is not for support
SRVCC ability；
If the initial SRVCC ability information of UE is for supporting SRVCC ability, MME's is initial
SRVCC ability information is not for support SRVCC ability, then this comprehensive SRVCC ability information is not for prop up
Hold SRVCC ability；
If the initial SRVCC ability information of UE is for supporting SRVCC ability, MME's is initial
SRVCC ability information is for supporting SRVCC ability, then this comprehensive SRVCC ability information is for supporting
SRVCC ability.
MME, can be by this comprehensive SRVCC energy after obtaining above-mentioned comprehensive SRVCC ability information
Force information notifies to base station.
Concrete, described MME can to the process of base station by described comprehensive SRVCC capacity information notice
To include:
B1, adds described comprehensive SRVCC ability information subscriber equipment initial context to and sets up request
In message.
B2, is disappeared described comprehensive SRVCC ability information by the subscriber equipment initial context request of setting up
Breath is sent to base station.
When UE has network connecting request, MME can send user in attachment flow and set to base station
Standby initial context sets up request message (UE INITIAL CONTEXT SETUP REQUEST),
In the embodiment of the present invention, described comprehensive SRVCC ability information can be added to this UE INITIAL
In CONTEXT SETUP REQUEST message, thus described comprehensive SRVCC ability information is led to
Know to base station.
Such as, similar to above-mentioned steps 200, can be at INITIAL CONTEXT SETUP
In REQUEST message add " SRVCC operation possible " field, with show described comprehensively
Whether SRVCC ability information supports SRVCC ability, and the embodiment of the present invention is no longer discussed in detail at this.
Step 204, when the SRVCC ability information of subscriber equipment changes, MME receives subscriber equipment
The tracing section updating request message sent.
In the embodiment of the present invention, when the SRVCC ability information of UE changes, can send out to MME
Send tracing section updating request message (TRACKING AREA UPDATE REQUEST), at this
TRACKING AREA UPDATE REQUEST message carries the UE's after change
SRVCC ability information, thus by this TRACKING AREA UPDATE REQUEST message
Can notify that the SRVCC ability information of MME current UE changes.
Step 206, extracts the subscriber equipment after changing from described tracing section updating request message
SRVCC ability information.
MME after receiving above-mentioned TRACKING AREA UPDATE REQUEST message,
Can therefrom extract the SRVCC ability information of the UE after change.
For concrete extraction process, the embodiment of the present invention is no longer discussed in detail at this.
Step 208, when SRVCC ability information and/or the SRVCC ability letter of subscriber equipment of MME
Breath change time, MME will change after MME SRVCC ability information and/or change after UE
SRVCC capacity information notice to base station.
In current technology, when the SRVCC ability information of UE changes, UE can send
TRACKING AREA UPDATE REQUEST message informing MME, but MME can't
By the SRVCC capacity information notice of the UE after this change to base station.
In the embodiment of the present invention, after the SRVCC ability information of MME UE after getting change,
Can notify to base station in time, and, after the SRVCC ability information of MME self changes,
The SRVCC ability information of the MME after changing can also be notified to base station by MME in time, thus base
Standing can be according to the SRVCC energy of the UE after the SRVCC ability information of the MME after changing and change
Force information judges whether to initiate SRVCC handover request.
In the embodiment of the present invention, after the SRVCC ability information of MME changes, MME can lead to
Cross MME and join more new information (MME CONFIGURATION UPDATE) notice base station.
Concrete, described will change after the SRVCC capacity information notice of MME can wrap to base station
Include:
C1, the SRVCC ability information of the MME after changing is added MME to and is joined more new information
In.
C2, joins more new information by described MME and is sent to base station.
Such as, the embodiment of the present invention can be in MME CONFIGURATION UPDATE message
Add " SRVCC operation possible " field, as shown in Table 2.
Table two
The SRVCC of the MME after change should be understood by " SRVCC operation possible " field list
Ability information, according to the information in this field, base station i.e. would know that SRVCC ability information changes after
Whether MME supports SRVCC ability.
For concrete judge process, being referred to the associated description in above-mentioned steps 200, the present invention is real
Execute example to be no longer discussed in detail at this.
In the embodiment of the present invention, after the SRVCC ability information of UE changes, MME is on passing through
After stating the SRVCC ability information that step 204-step 206 gets the UE after change, Ke Yitong
Cross customer equipment context amendment request message (UE CONTEXT MODIFICATION
Or downlink NAS direct-sending message (DOWNLINK NAS TRANSPORT) REQUEST)
Notice base station, wherein NAS is the abbreviation of Non-Access Stratum (Non-Access Stratum).
Concrete, the SRVCC ability of UE after MME will be able to be changed by following two mode is believed
Breath notice is to base station:
First kind of way:
Described will change after the SRVCC capacity information notice of subscriber equipment may include that to base station
D1, the SRVCC ability information of the subscriber equipment after changing is added customer equipment context to and is repaiied
Change in request message.
D2, is sent to base station by described customer equipment context amendment request message.
Such as, the embodiment of the present invention can be at UE CONTEXT MODIFICATION REQUEST
Message is added " SRVCC operation possible " field, as shown in Table 3.
Table three
The SRVCC ability of the UE after change should be understood by " SRVCC operation possible " field list
Information, the UE after base station i.e. would know that the change of SRVCC ability information according to the information in this field is
No support SRVCC ability.
For concrete judge process, being referred to the associated description in above-mentioned steps 200, the present invention is real
Execute example to be no longer discussed in detail at this.
The second way:
Described will change after the SRVCC capacity information notice of subscriber equipment may include that to base station
E1, the SRVCC ability information of the subscriber equipment after changing is added downlink NAS to and is direct transferred
In message.
E2, is sent to base station by described SRVCC ability information by downlink NAS direct-sending message.
Such as, the embodiment of the present invention can be added in DOWNLINK NAS TRANSPORT message
" SRVCC operation possible " field, as shown in Table 4.
Table four
It is somebody's turn to do " SRVCC operation possible " field and again shows that the SRVCC of the UE after changing
Ability information, base station i.e. would know that the UE after the change of SRVCC ability information according to the information in this field
Whether support SRVCC ability.
For concrete judge process, being referred to the associated description in above-mentioned steps 200, the present invention is real
Execute example to be no longer discussed in detail at this.
By above-mentioned steps 200-step 208, the initial SRVCC ability of MME can be known in base station
Information, obtain according to the initial SRVCC ability information of MME and the initial SRVCC ability information of UE
The comprehensive SRVCC ability information arrived, and after the ability information of UE changes, the UE after change
SRVCC ability information, and MME ability information change after, the MME's after change
SRVCC ability information, according to these SRVCC ability information, carries out SRVCC switching in base station
During judgement, SRVCC ability information and the SRVCC of UE of current MME can be accurately judged to
Ability information, judges whether to initiate SRVCC handover request the most again.
Such as, when base station judges whether to initiate SRVCC handover request, can include following several
The situation of kind:
The first situation:
The initial SRVCC ability information of described MME is for supporting SRVCC ability；
Described comprehensive SRVCC ability information is for supporting SRVCC ability；
Before base station carries out the judgement of SRVCC switching, be not received by that MME sends carries
The SRVCC ability information of the UE after the SRVCC ability information of the MME after change or change
Message (MME CONFIGURATION UPDATE, UE CONTEXT MODIFICATION
REQUEST or DOWNLINK NAS TRANSPORT)；
SRVCC handover request, through judging, in the first case described above, can be initiated in base station.
The second situation:
The initial SRVCC ability information of described MME is for supporting SRVCC ability；
Described comprehensive SRVCC ability information is for supporting SRVCC ability；
Before base station carries out the judgement of SRVCC switching, have received at least one that MME sends
The SRVCC ability of UE after carrying the SRVCC ability information of the MME after change or changing
Message (MME CONFIGURATION UPDATE, the UE CONTEXT of information
MODIFICATION REQUEST or DOWNLINK NAS TRANSPORT), these disappear
The SRVCC ability information carried in breath is not for support SRVCC ability.
Base station is through judging, in the case of above-mentioned the second, it is not possible to initiate SRVCC handover request.
The third situation:
The initial SRVCC ability information of described MME is for supporting SRVCC ability；
Described comprehensive SRVCC ability information is not for support SRVCC ability；Now, can through judgement
With learn UE initial SRVCC ability information for not supporting SRVCC ability；
Before base station carries out the judgement of SRVCC switching, be not received by that MME sends carries
Message (the UE CONTEXT MODIFICATION of the SRVCC ability information of the UE after change
REQUEST or DOWNLINK NAS TRANSPORT).
Base station is through judging, above-mentioned in the case of the third, it is not possible to initiate SRVCC handover request.
4th kind of situation:
The initial SRVCC ability information of described MME is for supporting SRVCC ability；
Described comprehensive SRVCC ability information is not for support SRVCC ability；Now, can through judgement
With learn UE initial SRVCC ability information for not supporting SRVCC ability；
Before base station carries out the judgement of SRVCC switching, receive that MME sends carries change
After message (the UE CONTEXT MODIFICATION of SRVCC ability information of UE
REQUEST or DOWNLINK NAS TRANSPORT), the UE's carried in this message
SRVCC ability information is for supporting SRVCC ability.
SRVCC handover request, through judging, in the case of above-mentioned 4th kind, can be initiated in base station.
5th kind of situation:
The initial SRVCC ability information of described MME is not for support SRVCC ability；
Described comprehensive SRVCC ability information is not for support SRVCC ability；Now, it may not be possible to really
Whether the initial SRVCC ability information determining UE supports SRVCC ability；
Before base station carries out the judgement of SRVCC switching, carrying of receiving only that MME sends changes
Message (the UE CONTEXT MODIFICATION of the SRVCC ability information of the UE after change
REQUEST or DOWNLINK NAS TRANSPORT).
Base station is through judging, in the case of above-mentioned 5th kind, no matter receiving UE CONTEXT
MODIFICATION REQUEST message or DOWNLINK NAS TRANSPORT message
In the SRVCC ability information of UE carried whether be to support SRVCC ability, due to MME's
SRVCC ability information, for not support SRVCC ability, all cannot initiate SRVCC handover request.
6th kind of situation:
The initial SRVCC ability information of described MME is not for support SRVCC ability；
Described comprehensive SRVCC ability information is not for support SRVCC ability；Now, it may not be possible to really
Whether the initial SRVCC ability information determining UE supports SRVCC ability；
Before base station carries out the judgement of SRVCC switching, carrying of receiving only that MME sends changes
Message (the MME CONFIGURATION of the SRVCC ability information of the MME after change
UPDATE), the SRVCC ability information of the MME carried in this message is for supporting SRVCC ability.
Base station is through judging, in the case of above-mentioned 6th kind, owing to not can determine that the initial SRVCC of UE
Whether ability information is to support SRVCC ability, therefore, causes switching to be lost in order to avoid mistake in judgment
Losing, now SRVCC handover request can not initiated in base station.
7th kind of situation:
The initial SRVCC ability information of described MME is not for support SRVCC ability；
Described comprehensive SRVCC ability information is not for support SRVCC ability；Now, it may not be possible to really
Whether the initial SRVCC ability information determining UE supports SRVCC ability；
Before base station carries out the judgement of SRVCC switching, carrying of all receiving that MME sends changes
Message (the MME CONFIGURATION of the SRVCC ability information of the MME after change
And carry the message (UE of SRVCC ability information of the UE after change UPDATE),
CONTEXT MODIFICATION REQUEST or DOWNLINK NAS
TRANSPORT), the SRVCC ability information of the MME carried in these message is for supporting SRVCC
Ability, the SRVCC ability information of the UE carried is also for supporting SRVCC ability.
SRVCC handover request, through judging, in the case of above-mentioned 7th kind, can temporarily be initiated in base station.
Certainly, above-mentioned several situations are only intended to citing, can also include other feelings in the embodiment of the present invention
Condition, the embodiment of the present invention is no longer discussed in detail at this.
In above-mentioned several situations, if the SRVCC ability of MME is to be become not supporting from support,
Then can send MME CONFIGURATION UPDATE message to all base stations under MME to lead to
Know base station；If the ability of MME is to support, except to all bases under MME from not supporting to become
Transmission MME CONFIGURATION UPDATE message notice of standing base station, it is also possible to traversal MME
Under all users, for support this SRVCC ability connected state UE send UE CONTEXT
MODIFICATION REQUEST message, the ability information of notice this UE of respective base station.
It should be noted that the embodiment of the present invention is mainly discussed SRVCC ability information, in reality
In application, it is also possible to consider further some other information, to determine finally whether initiate SRVCC
Handover request.For example, it is possible to according to above-mentioned SRVCC ability information, the evolved Universal Terrestrial of UE
Wireless access network (Evolved Universal Terrestrial Radio Access Network, E-UTRAN,
Also referred to as LTE) to UTRAN/GERAN and UTRAN packet switch (Packet Switch,
PS) voice wireless access capability information, and the voice bearer having built up, determine finally whether initiate
The SRVCC handover request of E-UTRAN to UTRAN/GERAN.For above-mentioned concrete judgement
Journey, the embodiment of the present invention is no longer being discussed in detail.
The embodiment of the present invention SRVCC ability information at MME and/or the SRVCC energy of subscriber equipment
When force information changes, the information after can changing in time notifies to base station, and therefore base station can be according to changing
The SRVCC ability information of the MME after change and the SRVCC ability information of subscriber equipment, accurately judge
Currently whether can carry out SRVCC switching, thus improve the success rate of switching.
Embodiment three:
With reference to Fig. 3, it is shown that a kind of single wireless voice calling continuity that the embodiment of the present invention three proposes
The structured flowchart of processing system, described system may include that sending module the 300, first notification module
302, receiver module 304, extraction module 306 and the second notification module 308.
Wherein,
Sending module 300, for when MME is connected with base station foundation, sending S1 and set up response message
To base station, described S1 sets up the initial SRVCC ability information adding described MME in response message；
First notification module 302, for resolving the initial SRVCC ability information obtaining subscriber equipment,
The initial SRVCC ability information of described subscriber equipment is raw with the initial SRVCC ability information of MME
Become comprehensive SRVCC ability information, and by described comprehensive SRVCC capacity information notice to base station；
Described first notification module 302 includes:
Integrated information adds submodule, sets for adding described comprehensive SRVCC ability information to user
Standby initial context is set up in request message；
User equipment message sends submodule, for the described subscriber equipment initial context request of setting up being disappeared
Breath is sent to base station；
Message sink submodule, for receiving the Attach Request message that subscriber equipment sends；
Information retrieval submodule, for extracting the initial of subscriber equipment from described Attach Request message
SRVCC ability information.
Receiver module 304, for when the SRVCC ability information of subscriber equipment changes, will change
After the SRVCC capacity information notice of subscriber equipment to base station before, receive that subscriber equipment sends with
The more newly requested message in track district；
Extraction module 306, sets for extracting the user after changing from described tracing section updating request message
Standby SRVCC ability information；
Second notification module 308, for when the SRVCC ability information of MME and/or subscriber equipment
When SRVCC ability information changes, the SRVCC ability information of the MME after changing and/or change
After the SRVCC capacity information notice of subscriber equipment to base station.
Described second notification module 308 includes:
MME information adds submodule, and the SRVCC ability information of the MME after changing is added
Join in more new information to MME；
MME message sends submodule, is sent to base station for described MME is joined more new information；
The first information adds submodule, and the SRVCC ability information of the subscriber equipment after changing adds
It is added in customer equipment context amendment request message；
First message sends submodule, for described customer equipment context amendment request message being sent to
Base station；
Second information adds submodule, and the SRVCC ability information of the subscriber equipment after changing adds
It is added in downlink NAS direct-sending message；
Second message sends submodule, for described downlink NAS direct-sending message is sent to base station.
It should be noted that in embodiments of the present invention, each message above-mentioned can be that MME is sent to
The message of base station, the most above-mentioned modules can be the module in MME, and certainly, the present invention implements
This is not any limitation as by example.
In the embodiment of the present invention when MME is connected with base station foundation, MME will send S1 and set up response
Message, to base station, sets up the initial SRVCC ability adding described MME in response message at described S1
Information, upon a user request, MME is by by the initial SRVCC ability information of subscriber equipment and MME
Initial SRVCC ability information generate comprehensive SRVCC capacity information notice to base station, and work as
When the SRVCC ability information of MME and/or the SRVCC ability information of subscriber equipment change, by institute
The SRVCC energy of subscriber equipment after stating the SRVCC ability information of the MME after change and/or changing
Force information notifies to base station.Due at the SRVCC ability information of MME and/or subscriber equipment
When SRVCC ability information changes, the information after can changing in time notifies to base station, therefore base station
Can be according to the SRVCC ability letter of the SRVCC ability information of the MME after changing and subscriber equipment
Breath, it is judged that currently whether can initiate SRVCC handover request, such that it is able to avoid base station mistake in judgment,
Improve the success rate of switching.
For system embodiment, due to itself and embodiment of the method basic simlarity, so the comparison described
Simply, relevant part sees the part of embodiment of the method and illustrates.
Each embodiment in this specification all uses the mode gone forward one by one to describe, and each embodiment stresses
Be all the difference with other embodiments, between each embodiment, identical similar part sees mutually
?.
The embodiment of the present invention can be at the general context of computer executable instructions
Described in, such as program module.Usually, program module includes performing particular task or realizing specific taking out
The routine of image data type, program, object, assembly, data structure etc..Can also be at distributed meter
Calculate in environment and put into practice the present invention, in these distributed computing environment, be connected by by communication network
Remote processing devices perform task.In a distributed computing environment, program module may be located at and includes
Storage device is in interior local and remote computer-readable storage medium.
For aforesaid each method embodiment, in order to be briefly described, therefore it is all expressed as a series of dynamic
Combining, but those skilled in the art should know, the present invention is not by described sequence of movement
Limiting, because according to the present invention, some step can use other orders or carry out simultaneously.Secondly,
Those skilled in the art also should know, embodiment described in this description belongs to preferred embodiment,
Necessary to involved action and the module not necessarily present invention.
Finally, in addition it is also necessary to explanation, in this article, the relational terms of such as first and second or the like
It is used merely to separate an entity or operation with another entity or operating space, and not necessarily requires
Or imply relation or the order that there is any this reality between these entities or operation.And, art
Language " includes ", " comprising " or its any other variant are intended to comprising of nonexcludability, so that
Must include that the process of a series of key element, method, commodity or equipment not only include those key elements, but also
Including other key elements being not expressly set out, or also include for this process, method, commodity or
The key element that equipment is intrinsic.In the case of there is no more restriction, statement " including ... " limit
Fixed key element, it is not excluded that there is also in including the process of described key element, method, commodity or equipment
Other identical element.
Above to the processing method of a kind of single wireless voice calling continuity provided by the present invention be
System, is described in detail, and principle and the embodiment of the present invention are entered by specific case used herein
Having gone elaboration, the explanation of above example is only intended to help to understand that the method for the present invention and core thereof are thought
Think；Simultaneously for one of ordinary skill in the art, according to the thought of the present invention, in specific embodiment party
All will change in formula and range of application, in sum, this specification content should not be construed as this
The restriction of invention.
Claims (12)
1. the processing method of a single wireless voice calling continuity, it is characterised in that including:
When Mobility Management Entity MME and base station are set up and are connected, transmission S1 set up response message to
Base station, described S1 sets up and adds the initial single wireless audio call of described MME in response message even
Continuous property SRVCC ability information；
MME resolves the initial SRVCC ability information obtaining subscriber equipment, by described subscriber equipment
Initial SRVCC ability information generates comprehensive SRVCC energy with the initial SRVCC ability information of MME
Force information, and by described comprehensive SRVCC capacity information notice to base station；SRVCC as MME
When the SRVCC ability information of ability information and/or subscriber equipment changes, MME will change after MME
SRVCC ability information and/or the SRVCC capacity information notice of subscriber equipment after changing to base station；
Wherein, described MME by described comprehensive SRVCC capacity information notice to base station, including: will
Described comprehensive SRVCC ability information is added subscriber equipment initial context to and is set up in request message；Will
Described comprehensive SRVCC ability information is set up request message by subscriber equipment initial context and is sent to base
Stand.
Method the most according to claim 1, it is characterised in that after described MME will change
The SRVCC capacity information notice of MME to base station, including:
The SRVCC ability information of the MME after changing is added in MME configuration update message；
Described MME configuration update message is sent to base station.
Method the most according to claim 1, it is characterised in that when the SRVCC energy of subscriber equipment
When force information changes, the SRVCC capacity information notice of the subscriber equipment after MME will change is to base
Before standing, also include:
MME receives the tracing section updating request message that subscriber equipment sends；
The SRVCC ability letter of the subscriber equipment after changing is extracted from described tracing section updating request message
Breath.
4. according to the method described in claim 1 or 3, it is characterised in that described MME will change
After the SRVCC capacity information notice of subscriber equipment to base station, including:
The SRVCC ability information of the subscriber equipment after changing adds customer equipment context amendment to please
Ask in message；
Described customer equipment context amendment request message is sent to base station.
5. according to the method described in claim 1 or 3, it is characterised in that described MME will change
After the SRVCC capacity information notice of subscriber equipment to base station, including:
The SRVCC ability information of the subscriber equipment after changing adds downlink NAS direct-sending message to
In；
Described SRVCC ability information is sent to base station by downlink NAS direct-sending message.
Method the most according to claim 1, it is characterised in that described MME resolves and used
The initial SRVCC ability information of family equipment, including:
Receive the Attach Request message that subscriber equipment sends；
The initial SRVCC ability information of subscriber equipment is extracted from described Attach Request message.
7. the processing system of a single wireless voice calling continuity, it is characterised in that including:
Sending module, for when Mobility Management Entity MME is connected with base station foundation, sending S1
Setting up response message to base station, described S1 sets up and adds the most single of described MME in response message
Wireless voice call seriality SRVCC ability information；
First notification module, for resolving the initial SRVCC ability information obtaining subscriber equipment, by institute
The initial SRVCC ability information of the initial SRVCC ability information and MME of stating subscriber equipment generates to be combined
Close SRVCC ability information, and by described comprehensive SRVCC capacity information notice to base station；
Second notification module, for when the SRVCC ability information of MME and/or subscriber equipment
When SRVCC ability information changes, the SRVCC ability information of the MME after changing and/or change
After the SRVCC capacity information notice of subscriber equipment to base station；
Wherein, described first notification module includes: integrated information add submodule, for by described comprehensively
SRVCC ability information is added subscriber equipment initial context to and is set up in request message；Subscriber equipment disappears
Breath sends submodule, is sent to base station for described subscriber equipment initial context is set up request message.
System the most according to claim 7, it is characterised in that described second notification module includes:
MME information adds submodule, and the SRVCC ability information of the MME after changing is added
In MME configuration update message；
MME message sends submodule, for described MME configuration update message is sent to base station.
System the most according to claim 7, it is characterised in that also include:
Receiver module, for when the SRVCC ability information of subscriber equipment changes, after changing
Before the SRVCC capacity information notice of subscriber equipment is to base station, receive the tracking area that subscriber equipment sends
More newly requested message；
Extraction module, for extracting the subscriber equipment after changing from described tracing section updating request message
SRVCC ability information.
10. according to the system described in claim 7 or 9, it is characterised in that described second notification module
Including:
The first information adds submodule, and the SRVCC ability information of the subscriber equipment after changing adds
It is added in customer equipment context amendment request message；
First message sends submodule, for described customer equipment context amendment request message being sent to
Base station.
11. according to the system described in claim 7 or 9, it is characterised in that described second notification module
Including:
Second information adds submodule, and the SRVCC ability information of the subscriber equipment after changing adds
It is added in downlink NAS direct-sending message；
Second message sends submodule, for described downlink NAS direct-sending message is sent to base station.
12. systems according to claim 7, it is characterised in that described first notification module includes:
Message sink submodule, for receiving the Attach Request message that subscriber equipment sends；
Information retrieval submodule, for extracting the initial of subscriber equipment from described Attach Request message
SRVCC ability information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310116484.1A CN103249019B (en) | 2013-04-03 | 2013-04-03 | The processing method of a kind of single wireless voice calling continuity and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310116484.1A CN103249019B (en) | 2013-04-03 | 2013-04-03 | The processing method of a kind of single wireless voice calling continuity and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103249019A CN103249019A (en) | 2013-08-14 |
| CN103249019B true CN103249019B (en) | 2016-08-17 |
Family
ID=48928190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310116484.1A Active CN103249019B (en) | 2013-04-03 | 2013-04-03 | The processing method of a kind of single wireless voice calling continuity and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103249019B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106162613B (en) | 2013-06-05 | 2020-02-21 | 华为技术有限公司 | Information transmission method, information change method and device |
| WO2017000262A1 (en) | 2015-06-30 | 2017-01-05 | 华为技术有限公司 | Method, apparatus and system for transmitting srvcc capability information |
| CN108271151B (en) * | 2016-12-31 | 2021-07-09 | 中国移动通信集团辽宁有限公司 | Method and device for identifying mobile internet terminal |
| CN111405620B (en) * | 2019-01-02 | 2022-03-29 | 大唐移动通信设备有限公司 | Method and base station for preventing VOLTE user from dropping call in network voice service |
| CN111510960A (en) * | 2019-01-30 | 2020-08-07 | 大唐移动通信设备有限公司 | SRVCC handover failure punishment processing method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101959269A (en) * | 2009-07-15 | 2011-01-26 | 华为技术有限公司 | Switching method and device |
| WO2012097509A1 (en) * | 2011-01-19 | 2012-07-26 | 华为技术有限公司 | Handover method and mobility management network element |
-
2013
- 2013-04-03 CN CN201310116484.1A patent/CN103249019B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101959269A (en) * | 2009-07-15 | 2011-01-26 | 华为技术有限公司 | Switching method and device |
| WO2012097509A1 (en) * | 2011-01-19 | 2012-07-26 | 华为技术有限公司 | Handover method and mobility management network element |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103249019A (en) | 2013-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3477994B1 (en) | Handover method, base station, and communication system | |
| US10911990B2 (en) | Network handover method and related device | |
| CN103249019B (en) | The processing method of a kind of single wireless voice calling continuity and system | |
| KR101223058B1 (en) | Method and apparatus for handling srvcc in an inter radio access technology handover | |
| AU2011251860B2 (en) | Signaling radio bearer security handling for single radio voice call continuity operation | |
| CN102238674B (en) | Service switching method and equipment from PS (Packet Switched) domain to 2G/3G network | |
| US9635591B2 (en) | Wireless communication method and wireless terminal | |
| CN104159262B (en) | Again the method and apparatus for accessing LTE network | |
| KR20170081690A (en) | A method, apparatus and system for dual connectivity handover | |
| CN102577504A (en) | Method and device for handing over video call from packet switched domain to circuit switched domain | |
| US11758442B2 (en) | Information processing method and device | |
| CN101394340B (en) | Data transmission method, system and apparatus | |
| CN103607783A (en) | CSFB (Circuit Switched Domain Fall Back) call establishment method and user equipment | |
| CN103096406A (en) | Sending method and device of identification information and calling switch request | |
| CN101902715A (en) | Emergency service processing method, equipment and network system | |
| CN106063327B (en) | Method and terminal for processing voice service | |
| CN101325806B (en) | Method of optimizing switching between systems | |
| CN104604269A (en) | Joint position updating processing method, device and system | |
| WO2014194672A1 (en) | Method and device for inter-system reselection or switching processing | |
| CN103428742A (en) | Method and device for processing SCTP (stream control transmission protocol) link failure of an S1 interface | |
| CN107734641A (en) | A kind of method, base station and core net node for configuring paging zone | |
| CN101800960A (en) | Method for transferring emergent service session and emergent service system | |
| CN102223678A (en) | Method for base station to obtain capacity information of user equipment | |
| CN101374343A (en) | Method and terminal equipment for implementing business continuity | |
| CN101431747B (en) | Method, system and apparatus for determining voice call continuity technology call |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |