CN102647693B - Speech business call continuity method and system - Google Patents
Speech business call continuity method and system Download PDFInfo
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Abstract
The present invention relates to a kind of speech business call continuity method and system, the method includes: core net determines and sends common single continuous voice call (SRVCC) ability information of its UE with speech business to current wireless access net system, and described common SRVCC ability information shows the SRVCC ability information to different radio access net system；After described UE initiates speech business, when described current wireless access net system judges that the SRVCC ability information that described core net issues shows the SRVCC ability supporting the corresponding Target cell of isosystem measurement report, judgement is triggered to the SRVCC of described Target cell.The inventive method and system are so that current wireless access net system correctly triggers SRVCC flow process, it is to avoid handoff failure.
Description
Technical field
The present invention relates to GSM, real more particularly, to a kind of speech business call continuity
Existing method and system.
Background technology
SRVCC (Single Radio Voice Call Continuity, single continuous voice call) function
Network Mobility is extremely from LTE (Long Term Evolution, Long Term Evolution) to be to ensure that speech business user
UTRAN (UMTS Terrestrial Radio Access Network-UMTS land wireless access
Net)/GERAN (GSM EDGE Radio Access Network, GSM EDGE Radio Access Network)
Or CDMA2000lxRTT (a kind of CDMA2000 type based on radio transmission techniques (RTT))
During system, the continuity problem of speech business.
It at the initial stage that LTE network is arranged net, is not up to the whole network coverage, and mainly hot spot region is entered
Row covers, and when the LTE network disposed provides VoIP (voice) business, initiates in the lte networks
When the user of VoIP business leaves LTE coverage, just face the problem of speech business call drop, for understanding
Certainly this problem, 3GPP/3GPP2 standard proposes LTE to UTRAN/GERAN and CDMA2000
The SRVCC scheme of lx network, can be before the user of speech business leaves LTE network, by speech business
It is switched in adjacent UTRAN/GERAN or CDMA2000lx network, thus ensure voice call
Do not interrupt.
Owing to SRVCC scheme is real based on IMS (IP Multimedia Subsystem, IP multimedia system)
Existing, it is therefore to dispose IMS to network requirement, the source and destination system of SRVCC i.e. to be carried out
Core net all needs to connect IMS.The decision-making of SRVCC needs to consider UE ability and core net ability simultaneously,
And if only if carries out the UE of speech business and when core-network side all supports SRVCC, just can trigger SRVCC
Process.
The decision-making of SRVCC completes, at MME in eNB (evolved Node B, evolved base station) side
It is sent to Initial UE Context Setup Request (initial context the sets up request) message of eNB
Or Handover Request (handover request) message can be carried " SRVCC Operation Possible
(SRVCC operates possibility) " cell, this cell is that MME and UE passes through NAS (Network
Attached Storage, network attached storage) process consult SRVCC ability after result, be
Represent when " TRUE " that current UE and core-network side all support SRVCC, if there being a side not support
SRVCC, then do not carry this cell in message, when eNB receives the instruction of " TRUE ", represents eNB
SRVCC process can be triggered to this UE, speech business is switched to objective network and goes.
Current 3GPP/3GPP2 standard defines two kinds of SRVCC processes, is respectively as follows:
E-UTRAN network is to the SRVCC process of UTRAN/GERAN network；
E-UTRAN network is to the SRVCC process of CDMA2000lx network.
The different SRVCC scheme of both the above is respectively defined to two kinds of SRVCC abilities of UE,
Defined in 24.301 agreements UE carry out NAS process transmission " Attach Request (attachment request) " or
When " Tracking Area Update Request (tracking area update request) " message is to MME, disappear
Breath can carry " UE Network Capability (UE network capabilities) " cell and " MS Network
Capability (MS network capabilities) " cell, wherein 1 in " UE Network Capability "
Bit represents whether UE supports the SRVCC of E-UTRAN to CDMA2000lx network；“MS
1 bit in Network Capability " represents whether UE supports that E-UTRAN arrives
The SRVCC of UTRAN/GERAN network.
When MME receives the NAS message of UE, the SRVCC ability of the comprehensive UE of meeting and core net
SRVCC ability, and if only if when both meeting, and MME is being sent to the UE Context of eNB
By " SRVCC in Setup Request message or Handover Request (handover request) message
Operation Possible " cell is filled out as " Possible ", and other situations do not carry this cell, such as Fig. 1
Shown in.
Here problem is existed for: owing to UE is for two kinds of different SRVCC processes of different target system
Two kinds of UE abilities that difference is corresponding, and MME is issued to " the SRVCC Operation Possible " of eNB
Indication field only one of which, therefore in the case that UE only supports a kind of SRVCC, this field cannot table
Bright UE is really the SRVCC process supporting which kind of goal systems, fills in cell and eNB at MME
All can cause mistake when carrying out SRVCC decision-making.
Only support the SRVCC of UTRAN/GERAN network such as UE, do not support CDMA2000
The SRVCC of lxRTT network, then UE be sent to MME NAS signaling Attach Request or
Tracking Area Update Request representing, it supports SRVCC to UTRAN/GERAN net
Network, and do not support SRVCC to CDMA2000lxRTT network, if the current E-UTRAN area of coverage
There is UTRAN/GERAN and CDMA2000lxRTT network around territory simultaneously, and
The core net of UTRAN/GERAN is connected to IMS, then arrive the SRVCC mistake of UTRAN/GERAN
Journey UE ability and core net ability are satisfied by, and arrive the SRVCC of CDMA2000lxRTT due to UE
Ability is unsatisfactory for, then do not possess the SRVCC ability to CDMA2000lxRTT network.
Problem 1:MME is sent to UE Context Setup Request message or the Handover of eNB
How " SRVCC Operation Possible " field is filled in by Request message？If extending this as
" Possible ", it is likely that cause eNB in the different system of decision-making UE to CDMA2000lxRTT
During switching, false triggering SRVCC process；If not carrying this cell, then eNB is caused to be triggered to
The SRVCC process of UTRAN/GERAN.
Problem 2: assume that in problem 1, " SRVCC Operation Possible " field is set to by MME
" Possible ", if now UE initiates speech business in E-UTRAN network, and because reaches
E-UTRAN network edge, adjacent CDMA2000lx adjacent area quality meets isosystem measurement criterion,
Reporting measurement reports is to eNB, and eNB is by " the SRVCC Operation Possible " field having preserved
Take for UE and target CDMA2000lxRTT network all supports SRVCC, therefore trigger SRVCC
Flow process, to target CDMA2000lx adjacent area, causes handoff failure, and speech business is interrupted, and affects user
Impression.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of speech business call continuity implementation method and is
System, with the problem avoiding the SRVCC flow process being triggered to false target system to cause handoff failure.
For solving above technical problem, the invention provides a kind of speech business call continuity implementation method,
The method includes:
Core net determines and sends the common of its UE with speech business to current wireless access net system
Single continuous voice call (SRVCC) ability information, described common SRVCC ability information table
The bright SRVCC ability information to different radio access net system；
After described UE initiates speech business, described current wireless access net system judges under described core net
The SRVCC ability information sent out shows to support the SRVCC of the corresponding Target cell of isosystem measurement report
When, judgement is triggered to the SRVCC of described Target cell.
Further, described UE reports SRVCC ability information and the SRVCC that described core net issues
The mode of ability information employing display or implicit expression represents the SRVCC ability of different radio access net system.
Further, the SRVCC ability information that described core net issues uses at least the two of a field
Individual bit shows the SRVCC ability at least two wireless access network system.
Further, described core net issues initial context and sets up request (Initial UE Context Setup
Request) described common SRVCC is carried when message or handover request (Handover Request) message
Ability information.
Further, described field is " SRVCC Operation Possible " field, if in this field
When the bit of certain wireless access network system corresponding is entered as " TRUE ", represents and support to arrive this wireless access
The SRVCC ability of net system, if the bit of certain wireless access network system corresponding is entered as in this field
When " FALSE ", represent the SRVCC ability not supporting this wireless access network system.
For solving above technical problem, present invention also offers a kind of speech business call continuity and realize system
System, this system includes:
The ability information of described core net issues module, for determining and sending out to current wireless access net system
Send common single continuous voice call (SRVCC) energy of the UE of described core net and speech business
Force information, described common SRVCC ability information shows the SRVCC to different radio access net system
Ability information；
The SRVCC of described wireless access network system triggers judging module, after described UE initiates speech business,
For deciding whether to trigger SRVCC, the SRVCC ability information that wherein said core net issues shows to prop up
When holding the SRVCC of the corresponding Target cell of isosystem measurement report, it is little that judgement is triggered to described target
The SRVCC in district.
Further, described UE reports SRVCC ability information and the SRVCC that described core net issues
The mode of ability information employing display or implicit expression shows the SRVCC ability to different radio access net system.
Further, the SRVCC ability information that described core net issues uses at least the two of a field
Individual bit shows the SRVCC ability at least two wireless access network system.
In speech business call continuity method and system of the present invention, core net is to current wireless access network
System issues its SRVCC ability information common with user equipment (UE), this common SRVCC
Ability information shows the SRVCC ability information to different radio access net system, so that currently without
Line access system can correctly trigger SRVCC flow process according to this common SRVCC ability information, it is to avoid
Handoff failure.
Brief description
Fig. 1 is SRVCC ability instruction situation schematic diagram in prior art；
Fig. 2 is the schematic diagram of speech business call continuity implementation method of the present invention；
Fig. 3 is the concrete signal of speech business call continuity implementation method of the present invention；
Fig. 4 is the schematic diagram of the embodiment of the present invention 1, and in this embodiment, UE ability is only supported
The SRVCC of UTRAN/GERAN, switching target small area is UTRAN/GERAN cell；
Fig. 5 is the schematic diagram of the embodiment of the present invention 2, and in this embodiment, UE ability is only supported
The SRVCC of UTRAN/GERAN, switching target small area is CDMA2000lxRTT cell；
Fig. 6 is the schematic diagram of the embodiment of the present invention 3, and in this embodiment, UE ability supports two kinds of SRVCC
Process, but core net only supports UTRAN/GERAN SRVCC, and switching target small area is
UTRAN/GERAN cell；
Fig. 7 is the schematic diagram of the embodiment of the present invention 4, and in this embodiment, UE ability supports two kinds of SRVCC
Process, but core net only supports UTRAN/GERAN SRVCC, and switching target small area is
CDMA2000lxRTT cell.
Detailed description of the invention
The main thought of speech business call continuity method and system of the present invention is, core net to work as
Front wireless access network system issues its SRVCC ability information common with user equipment (UE), and this is altogether
Same SRVCC ability information shows the SRVCC ability information to different radio access net system, thus
Current wireless access net system is made can correctly to trigger SRVCC according to this common SRVCC ability information
Flow process, it is to avoid handoff failure.
As in figure 2 it is shown, speech business call continuity implementation method of the present invention includes:
Step 201: core net determines and sends the UE of itself and speech business to current wireless access net system
Common single continuous voice call (SRVCC) ability information, described common SRVCC energy
Force information shows the SRVCC ability information to different radio access net system；
Step 202: after described UE initiates speech business, described current wireless access net system judges described
The SRVCC ability information that core net issues shows to support the corresponding Target cell of isosystem measurement report
SRVCC when, judgement is triggered to the SRVCC of described Target cell, does not otherwise trigger.
Wireless access network system described in the present invention include E-UTRAN, UTRAN/GERAN or
CDMA2000。
SRVCC ability information that described UE reports and the SRVCC ability information that described core net issues
The mode of employing display or implicit expression represents the SRVCC ability of different radio access net system.Implicit expression refers to
System default is related with or without not sending during to the SRVCC ability of certain wireless access network system
Ability information.
Preferably, described core net uses the mode of display, and the SRVCC ability information issuing uses one
At least two bit of individual field (such as " SRVCC Operation Possible " field) shows to extremely
The SRVCC ability of few two wireless access network systems, by the different taxes of the different bits of this field
Value (such as TRUE and FALSE, or Possible and Impossible) represents support respectively or does not supports
SRVCC ability to specific wireless access net system.
Below with the SRVCC process of E-UTRAN network to UTRAN/GERAN network and
E-UTRAN network illustrates as a example by the SRVCC process of CDMA2000lx network:
As shown in Figure 3, it is preferable that by S1 mouth Initial UE Context Setup Request message,
Two bits in " SRVCC Operation Possible " field in Handover Request message
Position, represents " whether supporting SRVCC to UTRAN/GERAN " respectively and " whether supports SRVCC
To CDMA2000lx ", when corresponding bit position is for " TRUE ", represents and supports；It is set to " FALSE "
When, represent and do not support.After MME receives two kinds of SRVCC abilities of UE, can be in conjunction with corresponding target
The core net ability of system, to the two bit in field " SRVCC Operation Possible "
Assignment respectively.
So, when the UE of speech business has reported isosystem measurement to report at E-UTRAN covering edge,
ENB can be according to the Target cell said system reporting, it is judged that " SRVCC Operation Possible "
In correspondence system bit instruction, if " TRUE ", then can be triggered to the SRVCC of this system
Process, otherwise, does not trigger SRVCC.
In order to make technical scheme and advantage clearer, each to the present invention below in conjunction with the accompanying drawings
Plant enforcement step to be described in further detail.
Embodiment 1
In this embodiment, UE ability only supports the SRVCC core net ability of UTRAN/GERAN
All support to arrive UTRAN/GERAN and the SRVCC ability to CDMA2000lxRTT, switch mesh
Mark cell is that Fig. 4 is shown in by the processing mode schematic diagram of UTRAN/GERAN cell.
UE passes through in NAS signaling Attach Request or Tracking Area Update Request message
" UE Network Capability " field and " MS Network Capability " field indicate MME,
Its ability supports the SRVCC process of UTRAN/GERAN, and does not support CDMA2000
The SRVCC process of lxRTT；
MME judges that core net ability is all supported UTRAN/GERAN and arrives CDMA2000lxRTT
SRVCC ability, after the SRVCC ability of comprehensive UE, at the Initial UE Context issuing to eNB
Only by " SRVCC Operation Possible " in Setup Request or Handover Request message
In field, the bit position of corresponding SRVCC to UTRAN/GERAN is " TRUE ".
UE initiates speech business in E-UTRAN, owing to reaching E-UTRAN network coverage edge,
Therefore triggering reports isosystem measurement to report, in measurement report, Target cell is that UTRAN/GERAN is little
District, before eNB side judges, MME issues in " SRVCC Operation Possible " field corresponding
The bit position of SRVCC to UTRAN/GERAN is " TRUE ", then trigger UE and arrive
Speech business is switched to UTRAN/GERAN network by the SRVCC process of UTRAN/GERAN.
Embodiment 2
In this embodiment, UE ability only supports the SRVCC of UTRAN/GERAN, core net energy
Power all supports UTRAN/GERAN and the SRVCC ability to CDMA2000lxRTT, switching
Target cell is that Fig. 5 is shown in by the processing mode schematic diagram of CDMA2000lxRTT cell.
UE passes through in NAS signaling Attach Request or Tracking Area Update Request message
" UE Network Capability " field and " MS Network Capability " field indicate MME,
Its ability supports the SRVCC process of UTRAN/GERAN, and does not support CDMA2000
The SRVCC process of lxRTT；
MME judges that core net ability is all supported UTRAN/GERAN and arrives CDMA2000
The SRVCC ability of lxRTT, after the SRVCC ability of comprehensive UE, issue to eNB
Initial UE Context Setup Request or Handover Request message only will
Corresponding SRVCC to UTRAN/GERAN in " SRVCC Operation Possible " field
Bit position is " TRUE ".
UE initiates speech business in E-UTRAN, owing to reaching E-UTRAN network coverage edge,
Therefore triggering reports isosystem measurement to report, in measurement report, Target cell is that CDMA2000lxRTT is little
District, before eNB side judges, MME issues in " SRVCC Operation Possible " field corresponding
The bit position of SRVCC to CDMA2000lx is " FALSE ", does not therefore trigger UE and arrives
The SRVCC process of CDMA2000lxRTT.
Embodiment 3:
In this embodiment, UE ability supports two kinds of SRVCC processes, but core net is only supported
UTRAN/GERAN SRVCC, switching target small area is the processing mode of UTRAN/GERAN cell
Fig. 6 is shown in by schematic diagram.
UE passes through in NAS signaling Attach Request or Tracking Area Update Request message
" UE Network Capability " field and " MS Network Capability " field indicate MME,
Its ability is supported the SRVCC process of UTRAN/GERAN simultaneously and arrives CDMA2000lxRTT
SRVCC process；
MME judges that core net ability only supports the SRVCC of UTRAN/GERAN, and does not supports
To the SRVCC ability of CDMA2000lxRTT, after the SRVCC ability of comprehensive UE, to eNB
The Initial UE Context Setup Request issuing or Handover Request message only will
The bit of corresponding SRVCC to UTRAN/GERAN in " SRVCC Operation Possible " field
Position is " TRUE ".
UE initiates speech business in E-UTRAN, owing to reaching E-UTRAN network coverage edge,
Therefore triggering reports isosystem measurement to report, in measurement report, Target cell is that UTRAN/GERAN is little
District, before eNB side judges, MME issues in " SRVCC Operation Possible " field corresponding
The bit position of SRVCC to UTRAN/GERAN is " TRUE ", then trigger UE and arrive
Speech business is switched to UTRAN/GERAN network by the SRVCC process of UTRAN/GERAN.
Embodiment 4:
In this embodiment, UE ability supports two kinds of SRVCC processes, but core net is only supported
UTRAN/GERAN SRVCC, switching target small area is the process side of CDMA2000lxRTT cell
Fig. 7 is shown in by formula schematic diagram.
UE passes through in NAS signaling Attach Request or Tracking Area Update Request message
" UE Network Capability " field and " MS Network Capability " field indicate MME,
Its ability is supported the SRVCC process of UTRAN/GERAN simultaneously and arrives CDMA2000lxRTT
SRVCC process；
MME judges that core net ability only supports the SRVCC of UTRAN/GERAN, and does not supports
To the SRVCC ability of CDMA2000lxRTT, after the SRVCC ability of comprehensive UE, to eNB
The Initial UE Context Setup Request issuing or Handover Request message only will
The bit of corresponding SRVCC to UTRAN/GERAN in " SRVCC Operation Possible " field
Position is " TRUE ".
UE initiates speech business in E-UTRAN, owing to reaching E-UTRAN network coverage edge,
Therefore triggering reports isosystem measurement to report, in measurement report, Target cell is that CDMA2000lxRTT is little
District, before eNB side judges, MME issues in " SRVCC Operation Possible " field corresponding
The bit position of SRVCC to CDMA2000lx is " FALSE ", does not therefore trigger UE and arrives
The SRVCC process of CDMA2000lxRTT.More than for showing to different radio access net system
The field of SRVCC ability is only signal, concrete assignment when implementing, to the title of field and field
All do not limit, as long as core net and current wireless access net system all can correctly identify.
Above example is all to arrive with E-UTRAN to UTRAN/GERAN and E-UTRAN
Illustrate as a example by the switching of CDMA2000lxRTT, it will be appreciated that, connect as long as relating to different radio
Switching between networking system, all applicable the inventive method.
Corresponding to above method, present invention also offers a kind of speech business call continuity and realize system,
This system includes:
The ability information of described core net issues module, for determining and sending out to current wireless access net system
Send the common SRVCC ability information of the UE of described core net and speech business, described common
SRVCC ability information shows the SRVCC ability information to different radio access net system；
The SRVCC of described wireless access network system triggers judging module, when described UE initiates switching, uses
In deciding whether to trigger SRVCC, the SRVCC ability information that wherein said core net issues shows to support
When reporting the SRVCC of corresponding Target cell to isosystem measurement, judgement is triggered to described Target cell
SRVCC, otherwise do not trigger.
Understandably, corresponding to previous embodiment, the ability information of core net issues module can be at MME
Network element realizes, certainly when MME Network Element Function is provided with change, this ability information issues module and also may be used
Realize in other respective network elements.The SRVCC of wireless access network system triggers judging module and realizes at eNB,
The relevant device that can have different base station systems corresponding to different wireless access networks realizes, the present invention is to this
Do not limit.
Further, described wireless access network system include E-UTRAN, UTRAN, GERAN or
CDMA。
Further, described UE reports SRVCC ability information and the SRVCC that described core net issues
The mode of ability information employing display or implicit expression shows the SRVCC ability to different radio access net system.
Further, the SRVCC ability information that described core net issues uses at least the two of a field
Individual bit shows the SRVCC ability at least two wireless access network system.
Preferably, this field still uses former " SRVCC Operation Possible " field, if this field
When the bit of middle correspondence wireless access network system is entered as " TRUE ", represents and support that this wireless connects
The SRVCC ability of networking system, if the bit assignment of certain wireless access network system corresponding in this field
During for " FALSE ", represent the SRVCC ability not supporting this wireless access network system.
Preferably, described core net issues initial context and sets up request (Initial UE Context Setup
Request) described common SRVCC is carried when message or handover request (Handover Request) message
Ability information.
One of ordinary skill in the art will appreciate that all or part of step in said method can pass through program
Instructing related hardware to complete, described program can be stored in computer-readable recording medium, as read-only
Memory, disk or CD etc..Alternatively, all or part of step of above-described embodiment also can use
One or more integrated circuits realize.Correspondingly, each module in above-described embodiment can use hardware
Form realize, it would however also be possible to employ the form of software function module realizes.The present invention is not restricted to any spy
The combination of the hardware and software of setting formula.
Claims (10)
1. a speech business call continuity implementation method, it is characterised in that the method includes:
Core net determines and sends the common of its UE with speech business to current wireless access net system
Single continuous voice call SRVCC ability information, described common SRVCC ability information shows
SRVCC ability information to different radio access net system；
After described UE initiates speech business, described current wireless access net system judges under described core net
The SRVCC ability information sent out shows to support the corresponding Target cell of isosystem measurement report
During SRVCC, judgement is triggered to the SRVCC of described Target cell；
Wherein, whether the described SRVCC ability information to different radio access net system refers to support
E-UTRAN network is to UTRAN/GERAN network and whether supports that E-UTRAN network arrives
The SRVCC ability information of CDMA2000 1x network.
2. the method for claim 1, it is characterised in that: described wireless access network system includes
E-UTRAN, UTRAN, GERAN or CDMA2000.
3. the method for claim 1, it is characterised in that: the SRVCC that described UE reports
The employing display of SRVCC ability information or the mode of implicit expression that ability information and described core net issue represent
SRVCC ability to different radio access net system.
4. the method for claim 1, it is characterised in that: the SRVCC that described core net issues
Ability information uses at least two bit of a field to show at least two wireless access network system
SRVCC ability.
5. the method for claim 1, it is characterised in that: described core net issues initial upper and lower
Request Initial UE Context Setup Request message or handover request Handover set up in literary composition
Described common SRVCC ability information is carried during Request message.
6. the method as described in claim 1 or 5, it is characterised in that: described common SRVCC
Ability information is " SRVCC Operation Possible " field, if in this field corresponding certain wireless connect
When the bit of networking system is entered as " TRUE ", represents and support this wireless access network system
SRVCC ability, if the bit of certain wireless access network system corresponding is entered as " FALSE " in this field
When, represent the SRVCC ability not supporting this wireless access network system.
7. a speech business call continuity realizes system, it is characterised in that this system includes:
The ability information of core net issues module, for determining and sending institute to current wireless access net system
State the common single continuous voice call SRVCC ability information of the UE of core net and speech business,
Described common SRVCC ability information shows the SRVCC ability letter to different radio access net system
Breath；
The SRVCC of described wireless access network system triggers judging module, and described UE initiates speech business
After, it is used for deciding whether to trigger SRVCC, the SRVCC ability information that wherein said core net issues
When showing the SRVCC supporting the corresponding Target cell of isosystem measurement report, judgement is triggered to described
The SRVCC of Target cell；
Wherein, whether the described SRVCC ability information to different radio access net system refers to support
E-UTRAN network is to UTRAN/GERAN network and whether supports that E-UTRAN network arrives
The SRVCC ability information of CDMA2000 1x network.
8. system as claimed in claim 7, it is characterised in that: the SRVCC that described UE reports
The employing display of SRVCC ability information or the mode of implicit expression that ability information and described core net issue show
SRVCC ability to different radio access net system.
9. system as claimed in claim 7, it is characterised in that: the SRVCC that described core net issues
Ability information uses at least two bit of a field to show at least two wireless access network system
SRVCC ability.
10. system as claimed in claim 9, it is characterised in that: described field is " SRVCC
Operation Possible " field, if the bit assignment of certain wireless access network system corresponding in this field
During for " TRUE ", represent the SRVCC ability supporting this wireless access network system, if in this field
When the bit of certain wireless access network system corresponding is entered as " FALSE ", represents and do not support that this is wireless
The SRVCC ability of access net system.
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| CN201110040930.6A CN102647693B (en) | 2011-02-18 | 2011-02-18 | Speech business call continuity method and system |
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| CN201110040930.6A CN102647693B (en) | 2011-02-18 | 2011-02-18 | Speech business call continuity method and system |
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Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103841545B (en) * | 2012-11-27 | 2017-12-29 | 华为技术有限公司 | The method and device that a kind of MME ponds scene ability information reports |
| CN103404107B (en) | 2013-06-05 | 2016-09-28 | 华为技术有限公司 | Information transferring method, information change method and device |
| CN104427560B (en) * | 2013-08-28 | 2019-10-25 | 中兴通讯股份有限公司 | Single radio voice call continuity handover configurations method, switching method and equipment |
| CN108966299B (en) | 2014-12-08 | 2021-02-23 | 华为技术有限公司 | Voice switching 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 |
| EP3364674B1 (en) * | 2015-11-06 | 2019-10-09 | Huawei Technologies Co., Ltd. | Voice roaming method, mobility management network element, and access network element |
| WO2017079908A1 (en) * | 2015-11-11 | 2017-05-18 | Qualcomm Incorporated | Systems and methods for preventing single radio voice call continuity failure during the voice over long term evolution call bearer setup phase |
| CN106993318A (en) * | 2016-01-20 | 2017-07-28 | 中兴通讯股份有限公司 | The method that switches between network, device, eMSC and SCC AS |
| WO2017177427A1 (en) * | 2016-04-14 | 2017-10-19 | 华为技术有限公司 | Service processing method, related apparatus, and communication system |
| CN107580343B (en) * | 2016-07-04 | 2021-07-27 | 中兴通讯股份有限公司 | Management method and device for single-channel voice call continuity switching |
| CN107666695B (en) * | 2016-07-27 | 2020-11-20 | 中兴通讯股份有限公司 | Network switching method and device |
| WO2019061445A1 (en) * | 2017-09-30 | 2019-04-04 | 深圳市云中飞网络科技有限公司 | Csfb fallback result detecting method and device and computer storage medium |
| WO2019183879A1 (en) * | 2018-03-29 | 2019-10-03 | Qualcomm Incorporated | Techniques for handling single radio voice call continuity |
| CN114845293B (en) * | 2021-02-02 | 2024-04-05 | 荣耀终端有限公司 | Method and device for reporting UE (user Equipment) capability |
| CN115515195A (en) * | 2021-06-22 | 2022-12-23 | ***通信有限公司研究院 | Method, device and communication equipment for fusing service continuity of network |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101401362A (en) * | 2006-01-10 | 2009-04-01 | 三星电子株式会社 | Mobile communications method and system for signalling information relating to network's capabilities |
| CN102647694A (en) * | 2011-02-18 | 2012-08-22 | 中兴通讯股份有限公司 | Method and system for realizing radio voice call continuity (RVCC) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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-
2011
- 2011-02-18 CN CN201110040930.6A patent/CN102647693B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101401362A (en) * | 2006-01-10 | 2009-04-01 | 三星电子株式会社 | Mobile communications method and system for signalling information relating to network's capabilities |
| CN102647694A (en) * | 2011-02-18 | 2012-08-22 | 中兴通讯股份有限公司 | Method and system for realizing radio voice call continuity (RVCC) |
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