CN104471980B - Judge the method and device of different system table tennis - Google Patents
Judge the method and device of different system table tennis Download PDFInfo
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- CN104471980B CN104471980B CN201380013855.1A CN201380013855A CN104471980B CN 104471980 B CN104471980 B CN 104471980B CN 201380013855 A CN201380013855 A CN 201380013855A CN 104471980 B CN104471980 B CN 104471980B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network
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Abstract
The present invention relates to a kind of method and devices for judging different system table tennis.It include: the time served the first instance of UE in the first system and judge to meet IRAT pingpang handoff according to residence time of the UE in the first system；Second instance of the first instance into second system sends instruction message, indicates that IRAT switching has occurred in the UE, the second system is the system where the UE switches or be redirected to the first system before.It is thus achieved that no matter UE switches or redirects between the first system and second system, can judge whether that IRAT table tennis has occurred.
Description
Technical field
The present invention relates to the communications field more particularly to a kind of method and devices for judging different system table tennis.
Background technique
Within a wireless communication network, if user equipment (User Equipment, UE) cannot obtain current standard or frequency
Enough service quality that the service system of rate provides and when causing communication service that can not be normally carried out, UE can pass through mobility
Change (for example, switching or redirection) is led into the different standard system or frequency that can provide higher quality of service for the UE
Communication service.It during the change of this mobility, may be arranged due to handoff parameter or redirection parameter unreasonable, cause
UE continually carries out mobility change between different systems system or frequency, that is, different system (Inter Radio has occurred
Access Technology, IRAT) table tennis (PingPong).Since different system table tennis can bring the load of system signaling to increase,
And since the interruption time delay of different systems mobility change is longer, the experience of UE is caused to reduce, therefore, it is necessary to accurately to different system
System table tennis judge.However, when the prior art passes through switching UE historical information (History Information,
HI the method for) judging the generation of different system table tennis, it is possible that erroneous judgement.
Summary of the invention
The embodiment of the invention provides a kind of method and devices for judging different system table tennis, and UE may be implemented in the first system
It when switching still redirects between second system, can judge whether that IRAT table tennis has occurred.
In a first aspect, the embodiment of the invention provides a kind of methods for judging different system table tennis, which comprises
Served in the first system the first instance of user equipment (UE) according to the UE staying in the first system
Time (Stay Time) judges the time for meeting different system IRAT pingpang handoff；
If it is satisfied, second instance of the first instance into second system sends instruction message, the instruction message
It is used to indicate the UE and IRAT switching has occurred, the second system is that the UE switches or be redirected to the first system
System where before.
According in a first aspect, under the first possible implementation, further includes: the first instance is real to described second
Body indicates the UE switching or is redirected to the source cell mark at place before the first system.
According to the first possible implementation, under second of possible implementation, further includes: the first instance
Target Cell Identifier UE switching or be redirected in the first system is indicated to the second instance.
According to the first possible implementation or second of possible implementation, in the third possible implementation
Under, if the UE is switched to the second system from the first system, further include: the first instance is to described second
The Target Cell Identifier of entity instruction switching；
If the UE is redirected to the second system from the first system, further include: the first instance to
The second instance instruction redirects the strongest second system cell in the measurement report that UE is reported in preparation process, Huo Zheshang
All second system cells in the measurement report of report.
It, can at the 4th kind according to the first any one possible implementation into the third possible implementation
Under the implementation of energy, further includes: the first instance indicates that the UE switches from the second system to the second instance
To or value the reason of be redirected to the first system.
It, can at the 5th kind according to the first any one possible implementation into the 4th kind of possible implementation
Under the implementation of energy, further includes: history message of the first instance to second instance instruction UE.
It, can at the 6th kind according to the first any one possible implementation into the 5th kind of possible implementation
Under the implementation of energy, further includes: the first instance indicates UE in the Sojourn times of the first system to the second instance
Between
According to any one the possible implementation of first aspect into the 6th kind of possible implementation, at the 7th kind
Under possible implementation, the first system includes Universal Mobile Communication System UMTS, and the second system includes drilling for a long time
Into system LTE, the first instance includes network controller RNC, and the second instance includes evolved base station eNB；Alternatively,
The first system includes LTE, and the second system includes UMTS, and the first instance includes eNB, and described second
Entity includes RNC.
It, can at the 8th kind according to any one possible implementation in second to the 7th kind possible implementation
Under the implementation of energy, when the first system is UTMS, and second system is LTE, the source cell is identified as cell global
CGI is identified, the Target Cell Identifier is physics convolutional code PSC and frequency point information；Or
When the first system is LTE, and second system is UMTS, the source cell is identified as PSC and frequency point information, institute
Stating Target Cell Identifier is CGI.
In second aspect, the embodiment of the invention provides a kind of device for judging different system table tennis, described device includes:
Judging unit, for serving the first instance of UE in the first system according to the UE in the first system
Residence time judges the time for meeting different system IRAT pingpang handoff；
Indicating unit, for when the judging unit judges that the residence time meets the IRAT pingpang handoff
Between when, second instance into second system sends instruction message, and the instruction message is used to indicate the UE and IRAT has occurred
Switching, the second system are the system that the UE switches or be redirected to place before the first system.
According to second aspect, under the first possible implementation, the indicating unit is also used to real to described second
Source cell before body indicates the UE switching or is redirected to the first system in the second system at place identifies.
According to the first possible implementation, under second of possible implementation, the indicating unit is also used to
Target Cell Identifier UE switching or be redirected in the first system is indicated to the second instance.
According to the first possible implementation or second of possible implementation, in the third possible implementation
Under,
If the UE is switched to the second system from the first system, the indicating unit is also used to institute
State the Target Cell Identifier of second instance instruction switching；
If the UE will be redirected to the second system from the first system, the indicating unit is also used
Strongest second system cell in the measurement report that UE is reported into second instance instruction redirection preparation process, or
All second system cells in the measurement report that person reports.
It, can at the 4th kind according to the first any one possible implementation into the third possible implementation
Under the implementation of energy, the indicating unit is also used to indicate that the UE switches from the second system to the second instance
To or value the reason of be redirected to the first system.
It, can at the 5th kind according to the first any one possible implementation into the 4th kind of possible implementation
Under the implementation of energy, the indicating unit is also used to indicate the history message of UE to the second instance.
It, can at the 6th kind according to the first any one possible implementation into the 5th kind of possible implementation
Under the implementation of energy, the indicating unit is also used to indicate UE in the Sojourn times of the first system to the second instance
Between
According to any one the possible implementation of second aspect into the 6th kind of possible implementation, at the 7th kind
Under possible implementation,
The first system includes Universal Mobile Communication System UMTS, and the second system includes LTE, the first instance
Including RNC, the second instance includes eNB；Alternatively,
The first system includes LTE, and the second system includes UMTS, and the first instance includes eNB, and described second
Entity includes RNC.
It, can at the 8th kind according to any one possible implementation in second to the 7th kind possible implementation
Under the implementation of energy,
When the first system is UTMS, and second system is LTE, the source cell is identified as CGI, the Target cell
It is identified as PSC and frequency point information；Or
When the first system is LTE, and second system is UMTS, the source cell is identified as PSC and frequency point information, institute
Stating Target Cell Identifier is CGI.
In the embodiment of the present invention, by serving the first instance of UE in the first system according to the UE in first system
Residence time judgement in system meets the time of IRAT pingpang handoff；Second instance into second system sends instruction message,
Indicate that IRAT switching has occurred in the UE, the second system is that the UE switches or is redirected to before the first system
The system at place.It is thus achieved that no matter UE switches or redirects between the first system and second system, can judge
Whether IRAT table tennis is had occurred, while not by whether there are X2 mouthfuls to be limited between the first system entity and the first system entity.
Detailed description of the invention
Fig. 1 is IRAT PingPong schematic diagram；
Fig. 2 is the method flow diagram for judging different system table tennis that the embodiment of the present invention one provides；
Fig. 3 is the schematic device of the different system table tennis of judgement provided by Embodiment 2 of the present invention；
Fig. 4 is the schematic device for judging different system table tennis that the embodiment of the present invention three provides.
Specific embodiment
The prior art according to user equipment switch historical information (User Equipment History Information,
UE HI) judge whether that IRAT table tennis has occurred, so that timely adjusting parameter, reduces the subsequent number that IRAT table tennis occurs.Fig. 1
It rattles schematic diagram for IRAT, if UE is from long evolving system (Long Term Evolution, LTE) first community (cell1)
Being switched to Universal Mobile Communication System (Universal Mobile Telecommunications System, UMTS), cell is simultaneously
It makes a brief stay after (such as 1 millisecond), then switchback to LTE cell2 then shows that IRAT table tennis has occurred, wherein UE is from LTE
When cell1 is switched to UMTS, eNB in LTE can in UMTS network controller (Radio Network Controller,
RNC UE HI) is sent.This method disadvantage for being judged whether that IRAT table tennis has occurred according to UE HI: UE HI can only be handed in switching
It is sent during mutually, therefore mobility must all be switching twice, this is because, when a switchover occurs, meeting between eNB and RNC
There is information exchange, i.e. source eNB can send UE HI to Target RNC；There is no information friendship when redirecting, between eNB and RNC
Mutually, therefore target BS can not just judge whether that different system IRAT table tennis has occurred.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
The description of following embodiments, which is UE from the first system, to be switched/it is redirected to second system, after making a brief stay, i.e., will
Switch again/when being redirected to the first system, judge the method whether UE has occurred IRAT table tennis, i.e. UE also in second system,
When there are no switching or be redirected to the first system, using the method that following embodiments provide it may determine that whether UE occurs out
IRAT table tennis.
Fig. 2 is the method flow diagram for judging different system table tennis that the embodiment of the present invention one provides.As shown in Fig. 2, of the invention
The method that embodiment one provides includes the following contents.
S201 serves the first instance of user equipment (UE) in the first system according to the UE in the first system
Residence time judgement meets the time of different system IRAT table tennis (inter RAT PingPong) switching.
The residence time is the time that the first system services the UE.
Specifically, when UE switches from second system or is redirected to the first system, UE can do of short duration stop in the first system
It stays, the first instance in the first system for UE service can judge whether to meet IRAT pingpang handoff according to the residence time of UE
Time, such as when the residence time of UE being less than the thresholding of IRAT pingpang handoff, then first instance judges that IRAT has occurred in UE
Pingpang handoff.The thresholding of IRAT pingpang handoff is respectively set by each system, can refer to the prior art, and the present invention is implemented
Example is not limited thereto.
S202, second instance of the first instance into second system send instruction message, indicate that IRAT has occurred in the UE
PingPong switching, the second system are the system that the UE switches or be redirected to place before the first system.
It specifically, is the first reality of UE service in the first system after judging that IRAT table tennis has occurred in UE by S201
Body can send instruction message to the second instance in second system, indicate that IRAT switching has occurred in the UE, so as to source second
Second instance in system adjusts different system switching parameter in time, reduces the subsequent number that IRAT table tennis occurs.
Optionally, the first instance also indicates that the UE switches or be redirected to described first to the second instance
Source cell mark in the second system where before system so that the second instance of second system is known be UE from
Which cell under second system switches or has occurred when being redirected to the first system IRAT table tennis, so that second instance adjusts source
The different system switching parameter of cell reduces the subsequent number that IRAT table tennis occurs.Specifically, since the second system is described
The system that UE switches or be redirected to place before the first system.Therefore, the first instance in the first system is to
Before second instance in two system sends instruction message, where needing to know UE switching or being redirected to the first system before
Second instance in second system can be obtained by following at least two method:
When the UE is switched to the first system from the second system, the second instance in second system is switching
First instance of the meeting into the first system sends UE history message in preparation process, and therefore, first instance can be from the UE history
The mark of the source cell where UE is switched to the first system before is obtained in information, and knows that second is real according to the mark of source cell
Body；Alternatively, when the UE is redirected to the first system from the second system, in UE to the first instance of the first system
It initiates the connection in establishment process, UE can be sent in the mark of the source cell in second system to first instance, such as cell global mark
Know (cell global identity, CGI), so that the mark according to the source cell knows second instance.
Optionally, the first instance also indicates that the UE switches or be redirected to described first to the second instance
Target Cell Identifier in system, so that the second instance adjustment of second system switches from source cell or be redirected to the first system
In Target cell when different system switching parameter.
Optionally, if the first instance judgement of the first system needs for the UE to be switched to from the first system
The second system, then the first instance is also switched to the Target Cell Identifier of second system to second instance instruction,
What different system when adjusting the Target cell being switched in the first system from source cell so as to the second instance of second system switched
Parameter；If the first instance judgement of the first system needs the UE being redirected to described second from the first system
System, then the first instance is indicated to the second instance: redirecting the letter in the measurement report that UE is reported in preparation process
All cell IDs of second system in number strongest second system cell ID of quality, or the measurement report that reports, with
Just the second instance adjustment of second system is redirected to the parameter that the different system in the first system switches from source cell.
Optionally, if the second system is LTE, the signal quality is RSRP (reference signal
Received power, Reference Signal Received Power) or RSRQ (reference signal received
Quality, Reference Signal Received Quality)；If the second system is UMTS, the signal quality is RSCP
(reference signal code power, received signal code power) or Ec/No (symbol signal-to-noise ratio).
Optionally, the first instance also indicates that the UE is switched to or again from the second system to the second instance
The reason of being directed to the first system value switches so that the second instance of second system adjusts different system according to the cause value
Parameter.
Optionally, the first instance also indicates the history message of UE to the second instance, so that second system
Second instance adjusts different system switching parameter according to the history message of UE.
Optionally, the first instance is also to second instance instruction UE in the residence time of the first system, with
So that the second instance of second system adjusts different system switching parameter in the residence time of the first system according to UE, IRAT table tennis is reduced
Pang frequency of occurrence.
Specifically, the first system includes Universal Mobile Communication System UMTS, and the second system includes long term evolution
System LTE, the first instance include network controller RNC, and the second instance includes evolved base station eNB；Alternatively, described
The first system includes LTE, and the second system includes UMTS, and the first instance includes eNB, and the second instance includes RNC.
In the embodiment of the present invention, source cell is the second system that UE switches or be redirected to place before the first system
In cell.Target cell is that UE switches or be redirected to cell in the first system where after the first system.
It should be noted that only illustrate here to the first system, second system, first instance and second instance, when
It is not limited to these types of system and entity, also may include the system of other systems either evolution later.
Specifically, when the first system is UTMS, and second system is LTE, the source cell in second system is marked
Knowing is cellular global identity CGI, and the Target Cell Identifier to the first system is physics convolutional code (Physical
Convolution Code, PSC) and frequency point information；Or when the first system is LTE, and second system is UMTS, institute
It states and is identified as PSC and frequency point information in the source cell of second system, the Target Cell Identifier to the first system is CGI.
It should be noted that device provided in an embodiment of the present invention implants the method for the offer of above-described embodiment one, therefore,
Details are not described herein for the specific work process of each unit of device provided in this embodiment.
Above-described embodiment description is, by serving the first instance of UE in the first system according to the UE described the
Residence time judgement in one system meets the time of IRAT pingpang handoff；Second instance into second system sends instruction and disappears
Breath indicates that IRAT switching has occurred in the UE, and the second system is that the UE switches or be redirected to the first system
System where before.It is thus achieved that no matter UE switches or redirects between the first system and second system, it is ok
Judge whether that IRAT table tennis has occurred so that the second instance in second system can carry out parameter according to indicated information
Adjustment is reduced to reduce different system switching times since different system switching bring interrupts time delay.
Correspondingly, following embodiments, which are provided, judges that the method for different system table tennis is corresponding with what is provided in above-described embodiment one
The device for judging different system table tennis.Fig. 3 is the schematic device of the different system table tennis of judgement provided by Embodiment 2 of the present invention.Such as
Shown in Fig. 3, described device includes: judging unit 301 and indicating unit 302.
Judging unit 301, for serving the first instance of UE in the first system according to the UE in the first system
In residence time judgement meet time of different system IRAT pingpang handoff.
Indicating unit 302, for judging that the residence time meets the IRAT table tennis and cuts in the judging unit 301
When the time changed, the second instance into second system sends instruction message, and the instruction message is used to indicate the UE and occurs
IRAT switching, the second system are the system where the UE switches or is redirected to before the first system.
Specifically, the indicating unit 302 is also used to indicate the UE switching to the second instance or is redirected to
Source cell mark in the second system where before the first system.
Optionally, the indicating unit 302 is also used to indicate the UE switching to the second instance or is redirected to
Target Cell Identifier in the first system.
If the UE will be switched to the second system from the first system, the indicating unit 302 is also used
In the Target Cell Identifier to second instance instruction switching；
If the UE will be redirected to the second system from the first system, the indicating unit 302 is also
For indicating to redirect the strongest second system cell in the measurement report that UE is reported in preparation process to the second instance,
Or all second system cells in the measurement report reported.
Optionally, the indicating unit 302 is also used to indicate that the UE is cut from the second system to the second instance
The reason of changing to or being redirected to the first system value.
Optionally, the indicating unit 302 is also used to indicate the history message of UE to the second instance.
Optionally, the indicating unit 302 is also used to indicate UE staying in the first system to the second instance
Time
Specifically, the first system includes Universal Mobile Communication System UMTS, and the second system includes LTE, described
First instance includes RNC, and the second instance includes eNB；Alternatively, the first system includes LTE, the second system includes
UMTS, the first instance include eNB, and the second instance includes RNC.
Specifically, when the first system is UTMS, and second system is LTE, the source cell is identified as CGI, described
Target Cell Identifier is PSC and frequency point information；Or when the first system is LTE, and second system is UMTS, the source
Cell ID is PSC and frequency point information, and the Target Cell Identifier is CGI.
Using technical solution provided in an embodiment of the present invention, no matter UE switch between the first system and second system or
It redirects, can judge whether to have occurred IRAT table tennis, while not by being between the first system entity and the first system entity
It is no to have X2 mouthfuls of limitation.
Correspondingly, following embodiments, which are provided, judges that the method for different system table tennis is corresponding with what is provided in above-described embodiment one
Another kind judges the device of different system table tennis.Fig. 4 is the device signal for judging different system table tennis that the embodiment of the present invention four provides
Figure.As shown in figure 4, described device includes: network interface 41, processor 42, memory 43 and system bus 44.
The system bus 44 is for connecting the network interface 41, the processor 42 and the memory 43；It is described
Network interface 41 with other equipment for communicating；Application program is stored in the memory 43, the application program includes available
In the instruction for making the processor 42 and system execution following procedure:
The first instance that UE is served in the first system judges according to residence time of the UE in the first system
Meet the time of different system IRAT pingpang handoff；
Second instance of the first instance into second system sends instruction message, and the instruction message is used to indicate institute
It states UE and IRAT switching has occurred, the second system is that the UE switches or be redirected to place before the first system
System.
Optionally, the first instance also indicates that the UE switches or be redirected to described first to the second instance
Source cell mark in the second system where before system.
Optionally, the first instance also indicates that the UE switches or be redirected to described first to the second instance
Target Cell Identifier in system.
Optionally, if the UE will be switched to the second system, the first instance from the first system
Also to the Target Cell Identifier of second instance instruction switching；If the UE will be redirected to institute from the first system
Second system is stated, the first instance also indicates to redirect in the measurement report that UE is reported in preparation process to the second instance
Strongest second system cell, or all second system cells in the measurement report that reports.
Optionally, the first instance also indicates that the UE is switched to or again from the second system to the second instance
The reason of being directed to the first system value.
Optionally, the first instance is also to the history message of second instance instruction UE.
Optionally, the first instance also indicates UE in the residence time of the first system to the second instance
Specifically, the first system includes UMTS, and the second system includes LTE, and the first instance includes RNC,
The second instance includes eNB；Alternatively, the first system includes LTE, the second system includes UMTS, and described first is real
Body includes eNB, and the second instance includes RNC.
It should be noted that only illustrate here to the first system, second system, first instance and second instance, when
It is not limited to these types of system and entity, also may include the system of other systems either evolution later.
Specifically, when the first system is UTMS, and second system is LTE, the source cell is identified as CGI, described
Target Cell Identifier is PSC and frequency point information；Or when the first system is LTE, and second system is UMTS, the source
Cell ID is PSC and frequency point information, and the Target Cell Identifier is CGI.
It should be noted that device provided in an embodiment of the present invention implants the method for the offer of above-described embodiment one, therefore,
Details are not described herein for the specific work process of the various pieces of device provided in this embodiment.
Above-described embodiment description is, by serving the first instance of UE in the first system according to the UE described the
Residence time judgement in one system meets the time of IRAT pingpang handoff；Second instance into second system sends instruction and disappears
Breath indicates that IRAT switching has occurred in the UE, and the second system is that the UE switches or be redirected to the first system
System where before.It is thus achieved that no matter UE switches or redirects between the first system and second system, it is ok
Judge whether that IRAT table tennis has occurred, while not by the limit for whether there are X2 mouthfuls between the first system entity and the first system entity
System.
Professional should further appreciate that, described in conjunction with the examples disclosed in the embodiments of the present disclosure
Unit and algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, hard in order to clearly demonstrate
The interchangeability of part and software generally describes each exemplary composition and step according to function in the above description.
These functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.
Professional technician can realize described function to each specific application using different device, but this realization
It should not be considered as beyond the scope of the present invention.
The step of device or algorithm described in conjunction with the examples disclosed in this document, can be executed with hardware, processor
The combination of software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only memory
(ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field
In any other form of storage medium well known to interior.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (12)
1. a kind of method for judging different system table tennis, which is characterized in that the described method includes:
Residence time of the first instance of user equipment (UE) according to the UE in the first system is served in the first system
Judge whether the time for meeting different system IRAT pingpang handoff；
If it is satisfied, second instance of the first instance into second system sends instruction message, the instruction message is used for
Indicate that IRAT pingpang handoff has occurred in the UE, the second system is that the UE is redirected to where before the first system
System；The method also includes: the first instance sends the UE to the second instance and is redirected to first system
Source cell mark where before system；Alternatively,
The first instance sends the Target Cell Identifier that the UE is redirected in the first system to the second instance；
Alternatively,
The first instance sends the source cell mark that the UE is redirected to place before the first system to the second instance
Target Cell Identifier in knowledge and the first system.
2. the method as described in claim 1, which is characterized in that the method also includes:
If the UE is redirected to the second system from the first system, the first instance is to the second instance
It is sent in the strongest second system cell ID of signal quality redirected in the measurement report that UE is reported in preparation process, or
All cell IDs of the second system in measurement report reported.
3. method according to claim 1 or 2, which is characterized in that the method also includes: the first instances to described
Two entities send the reason of UE is redirected to the first system from second system value.
4. method according to claim 1 or 2, which is characterized in that the method also includes: the first instances to described
The history message of two entities transmission UE.
5. judging the method for different system table tennis as claimed in claim 1 or 2, which is characterized in that the method also includes: it is shown
First instance sends the UE in the residence time of the first system to the second instance.
6. method according to claim 1 or 2, it is characterised in that,
When the first system is UTMS, and second system is LTE, the source cell is identified as cellular global identity CGI, described
Target Cell Identifier is physics convolutional code PSC and frequency point information；Or
When the first system is LTE, and second system is UMTS, the source cell is identified as PSC and frequency point information, the mesh
Mark cell ID is CGI.
7. a kind of device for judging different system table tennis, which is characterized in that described device includes:
Judging unit, for served in the first system the first instance of UE according to the UE staying in the first system
Time judges the time for meeting different system IRAT pingpang handoff；
Indicating unit, for judging that the residence time meets the time of the IRAT pingpang handoff in the judging unit
When, second instance into second system sends instruction message, and the instruction message, which is used to indicate the UE IRAT has occurred, cuts
It changes, the second system is the system that the UE is redirected to place before the first system；
The indicating unit is also used to indicate to the second instance where before the UE is redirected to the first system
Source cell mark in the second system；Alternatively,
The target that the indicating unit is also used to indicate that the UE is redirected in the first system to the second instance is small
Area's mark；Alternatively,
The indicating unit is used to indicate the first instance and is redirected to described first to the second instance transmission UE
Source cell mark where before system and the Target Cell Identifier in the first system.
8. judging the device of different system table tennis as claimed in claim 7, which is characterized in that
If the UE is redirected to the second system from the first system, the indicating unit is also used to described
The instruction of two entities redirects the strongest second system cell in the measurement report that UE is reported in preparation process, or the survey reported
All second system cells in amount report.
9. judging the device of different system table tennis as claimed in claim 7 or 8, which is characterized in that the indicating unit is also used to
Indicate the reason of UE is redirected to the first system from second system value.
10. judging the device of different system table tennis as claimed in claim 7 or 8, which is characterized in that the indicating unit is also used to
The history message of the UE is indicated to the second instance.
11. judging the device of different system table tennis as claimed in claim 7 or 8, which is characterized in that the indicating unit is also used to
Indicate the UE in the residence time of the first system to the second instance.
12. judging the device of different system table tennis as claimed in claim 7 or 8, it is characterised in that,
When the first system is UTMS, and second system is LTE, the source cell is identified as CGI, the Target Cell Identifier
For PSC and frequency point information；Or
When the first system is LTE, and second system is UMTS, the source cell is identified as PSC and frequency point information, the mesh
Mark cell ID is CGI.
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| CN106888468B (en) * | 2015-12-15 | 2020-09-18 | 华为技术有限公司 | Anti-ping-pong switching optimization method and system and base station |
| CN114980226A (en) | 2018-06-26 | 2022-08-30 | 华为技术有限公司 | Redirection method, communication system and communication device |
| CN111132246A (en) * | 2018-11-01 | 2020-05-08 | 中国电信股份有限公司 | Handover method, system, and computer-readable storage medium |
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| CN101873620A (en) * | 2009-04-22 | 2010-10-27 | 中兴通讯股份有限公司 | Method and device for judging inter-cell reselection parameter and handover parameter matching |
| CN102984774A (en) * | 2012-12-10 | 2013-03-20 | 华为技术有限公司 | Method for reducing unnecessary handover of inter-system cells and network equipment |
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| CN101873620A (en) * | 2009-04-22 | 2010-10-27 | 中兴通讯股份有限公司 | Method and device for judging inter-cell reselection parameter and handover parameter matching |
| CN102984774A (en) * | 2012-12-10 | 2013-03-20 | 华为技术有限公司 | Method for reducing unnecessary handover of inter-system cells and network equipment |
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| Title |
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| Way forward for I-RAT Ping Pong avoidance;Ericsson;《3GPP TSG-RAN WG3 #76，R3-121295》;20120525;1-5 |
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