CN109996350A - Conversation modes optimization method and device in a kind of 5G system - Google Patents
Conversation modes optimization method and device in a kind of 5G system Download PDFInfo
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- CN109996350A CN109996350A CN201810005259.3A CN201810005259A CN109996350A CN 109996350 A CN109996350 A CN 109996350A CN 201810005259 A CN201810005259 A CN 201810005259A CN 109996350 A CN109996350 A CN 109996350A
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Abstract
This application discloses conversation modes optimization method and devices in a kind of 5G system, this method comprises: conversation management functional SMF module sets the preset time of releasing session business when the business anchor point PSA of terminal device UE is reoriented to second user face functional module UPF2 by the first original user plane functions module UPF1；Non access stratum NAS message is sent to the UE by access mobile management function AMF module, carries the preset time in message；Wherein, the NAS message is used to indicate UE and needs to re-establish a session service；SMF module then initiates the process of release current sessions business when determining the current time in system arrival preset time.Solves the technical issues of existing session service release method causes loss of data.
Description
Technical field
This application involves conversation modes optimization method and devices in field of communication technology more particularly to a kind of 5G system.
Background technique
UPF (User Plane Function, user plane functions) module be in 5G mobile system terminal device (UE) in core
The business of heart net ends module, and the business face data of UE is attached by UPF with external application servers, and effect is similar to 4G system
The SGI interface function of PGW (Packet Data Network Gateway, packet data gateway) module under system.It is mobile in 5G
The function that function reorientation is carried out to core network service face UPF module is increased in system, it can kept in the business of UE
Dynamically change the UPF module of service in journey, and in order to guarantee that UE service surface continues not interrupt, agreement is three kinds especially set out
Session and business continuity sexual norm, i.e. SSC Mode1, SSC Mode2 and SSC Mode3, these three modes are by UE according to oneself
Ability independently select and be carried in session establishment request message core net, if core net needs after session establishment success
This session setup is relocated, it can suitable SSC business is selected to reset bit pattern accordingly.
For UE the case where establishing single anchor point business (neither Multi-Homing is also not UL-CL business), i.e.,
The 4.3.5.1 scene of agreement TS23.502.In this case, only one common access anchor point, that is, PSA (PDU of UE
Session Anchor, PDU session anchor point), if SMF (Session Management Function, the session of core net
Management function) module wishes the business anchor point PSA of UE access being reoriented to UPF2 by original UPF1, then it can initiate lower Fig. 1
Shown in SSC Mode2 process.It is described according to agreement, the key step for including in process is as follows:
Step 1:SMF module is determined the business anchor point of UE for some reason (such as based on UPF load balancing requirement)
PSA is reoriented to UPF2 by original UPF1；
Step 2:SMF module passes through AMF (Access and Mobility Management Function, access movement
Management function) module to UE sends NAS (Non Access Stratum, a Non-Access Stratum) message, it carries in message current
Need to relocate the PDU session id (PDU Session ID) of anchor point PSA, instruction UE needs to re-establish a session service；
Step 3:SMF module then initiates the process of release current sessions business at once；
Step 4:UE initiates the process of newly-built session Session, and SMF module can select handle during establishing new session
Business anchor point PSA of the UPF2 as new session Session, thereby realizes the reorientation of session anchor point PSA；
According to the realization process of the above-mentioned prior art: core net notice UE is initiated at once after PSA reorientation occurs
The process of current sessions release, but under the huge data throughout background of 5G, may be saved in UE data handling queues
Data a large amount of pending and due-in if releasing session at once may cause the loss of media data.
Summary of the invention
The application provides conversation modes optimization method and device in a kind of 5G system, to solve session industry in the prior art
The technical issues of business method for releasing causes loss of data.
In a first aspect, the application provides conversation modes optimization method in a kind of 5G system, when the business anchor of terminal device UE
When point PSA is by relocating, comprising:
The preset time of conversation management functional SMF module setting releasing session business；
Non access stratum NAS message is sent to the UE by access mobile management function AMF module, in message described in carrying
Preset time；Wherein, the NAS message is used to indicate UE and needs to re-establish a session service；
SMF module then initiates the stream of release current sessions business when determining the current time in system arrival preset time
Journey.
In a kind of possible embodiment, conversation management functional SMF module sets the preset time of releasing session business
Include:
Determine the data to be sent and data to be received saved in the data handling queues of the UE；
Handling duration required for the complete data to be sent of calculation processing and data to be received, according to the handling duration
Set the preset time.
In a kind of possible embodiment, this method further include:
SMF module is before determining that the current time in system reaches the preset time, if having received UE has handled data
The release request for the release current sessions business initiated after data in processing queue, then terminate the timer, and initiate to discharge
The process of current sessions business.
Second aspect, the application also provide conversation modes optimization method in a kind of 5G system, when the business anchor point PSA weight of UE
When positioning, comprising:
UE receives the Non-Access Stratum that conversation management functional SMF module is sent by accessing mobile management function AMF module
NAS message carries preset time in message；Wherein, the NAS message is used to indicate UE and needs to re-establish a session industry
Business；The preset time is used to indicate the time of the process of release current sessions business；
UE has been handled in data handling queues after data, determines whether the current time in system does not reach the preset time,
The release request of release current sessions business is then initiated to SMF module, so that the process of SMF module release current sessions business.
The third aspect, the application also provide a kind of conversation management functional SMF module, when the business anchor point PSA of UE is relocated
When, comprising:
Time setting unit, for setting the preset time of releasing session business；
Message sending unit disappears for sending Non-Access Stratum NAS to the UE by access mobile management function AMF module
It ceases, carries the preset time in message；Wherein, the NAS message is used to indicate UE and needs to re-establish a session service；
Releasing unit, for initiating release current sessions industry after determining that the current time in system reaches the preset time
The process of business.
In a kind of possible embodiment, the time setting unit is specifically used for determining the data processing team of the UE
The data to be sent and data to be received saved in column；Required for the complete data to be sent of calculation processing and data to be received
Handling duration sets the preset time according to the handling duration.
In a kind of possible embodiment, it is described default that the releasing unit is also used to determine that the current time in system reaches
Before time, asked if having received UE and having handled the release of the release current sessions business initiated after data in data handling queues
It asks, then terminates the timer, and initiate the process of release current sessions business.
Fourth aspect, the application also provide a kind of terminal device, when the business anchor point PSA of terminal device UE reorientation,
Include:
Receiving unit is sent for receiving conversation management functional SMF module by accessing mobile management function AMF module
Non access stratum NAS message, carry preset time in message；Wherein, the NAS message is used to indicate UE and needs to re-establish one
A session service；The preset time is used to indicate the time of the process of release current sessions business；
Whether transmission unit determines the current time in system for having handled in data handling queues after data in the UE
The preset time is not reached, then the release request of release current sessions business is initiated to SMF module, so that SMF module discharges
The process of current sessions business.
5th aspect, the application also provide a kind of calculating equipment, comprising:
At least one processor, and
The memory that is connect at least one described processor communication, communication interface；
Wherein, the memory is stored with the instruction that can be executed by least one described processor, described at least one
The instruction that device is stored by executing the memory is managed, the communication interface is utilized to execute any one possible reality of first aspect
Apply method described in mode.
6th aspect, the application provide a kind of computer readable storage medium, the computer-readable recording medium storage
Have computer instruction, when the computer instruction is run on computers so that computer execute first aspect any one
Method described in possible embodiment.
The application has the beneficial effect that:
Conversation modes optimization method and device in 5G system provided by the embodiments of the present application, when the business anchor of terminal device UE
When point PSA is by relocating, allow terminal UE before the reorientation of business anchor point by adding one in the NAS message of instruction reorientation
The buffer time information of data in buffer traffic data queue is handled, so that staying before the release of current sessions business to UE
Sufficient time-triggered protocol data to be processed are gone out, it is possible to reduce the probability of data loss problem occurs in PSA repositioning process.
Detailed description of the invention
Fig. 1 is in the prior art to show the business anchor point PSA of UE access by the process that original UPF1 is reoriented to UPF2
It is intended to；
Fig. 2 is the flow diagram of conversation modes optimization method in a kind of 5G system provided by the embodiments of the present application；
Fig. 3 is the flow diagram of conversation modes optimization method in another 5G system provided by the embodiments of the present application；
Fig. 4 is to utilize a kind of structural schematic diagram of conversation management functional SMF module provided by the embodiments of the present application；
Fig. 5 is a kind of structural schematic diagram of terminal device provided by the embodiments of the present application；
Fig. 6 is a kind of structural schematic diagram for calculating equipment provided by the embodiments of the present application.
Specific embodiment
It is described according to process of the existing protocol TS23.502 to SSC Mode2 under single anchor point business, AMF module is sent to UE
After NAS message, then current sessions business is released immediately, i.e. core net notice terminal UE is sent out at once after PSA reorientation occurs
The process of current sessions release is played, UE does not have enough buffer time to come to be sent in data handling queues or to be received
Current service data is handled, may in the data handling queues of UE especially under the huge data throughout background of 5G
A large amount of data to be sent and to be received are saved, if not reserving sufficient buffered data time to UE, it is possible to make
At the loss of media data；
Based on above-mentioned problem of the prior art, the embodiment of the present application provides conversation modes optimization method in a kind of 5G system,
When the business anchor point PSA of terminal device UE reorientation, comprising:
The preset time of conversation management functional SMF module setting releasing session business；
Non access stratum NAS message is sent to the UE by access mobile management function AMF module, in message described in carrying
Preset time；Wherein, the NAS message is used to indicate UE and needs to re-establish a session service；
SMF module then initiates the stream of release current sessions business when determining the current time in system arrival preset time
Journey.
Method provided by the embodiment of the present application, the 4.3.5.1 scene to agreement TS23.502 are list anchor point SSC Mode2
Under agreement process be optimized, SMF module notice UE need to re-establish a session service NAS message in increase
The predetermined time information of one release current sessions business, so that reserving the sufficient time to terminal comes buffer traffic processing team
Data in column reduce the probability that data loss problem occurs in PSA repositioning process.
Method and apparatus provided by the embodiment of the present application are done further below in conjunction with attached drawing and specific application scenarios
Detailed description:
Embodiment one
Below in conjunction with Figure of description 2 to conversation modes optimization method in a kind of 5G system provided by the embodiment of the present application
It is further described in detail, method provided by the embodiment of the present application is mainly for the list anchor point session of 5G system and business continuity
The process of sexual norm 2 (SSC Mode2) optimizes, when the business anchor point PSA of terminal device UE is by the first original user face
When functional module UPF1 is reoriented to second user face functional module UPF2, this method specific implementation be may comprise steps of:
Step 201, the preset time of SMF module setting releasing session business；
In the embodiment of the present application, it when SMF determination needs to discharge current sessions business, then needs further to determine immediately
The media data whether release current sessions business will lead to UE is lost, thus can based on UE data to be sent and to be received place
Reason situation determines that an estimated UE can handle the time of data in data handling queues, i.e., the described preset time；Wherein it is determined that
The specific implementation of the preset time may is that
A1 determines the data to be sent and data to be received saved in the data handling queues of UE；
A2, handling duration required for the complete data to be sent of calculation processing and data to be received, according to the processing
Duration sets preset time.
Step 202, non access stratum NAS message is sent to the UE by AMF module, when carrying described default in message
Between；Wherein, the NAS message is used to indicate UE and needs to re-establish a session service；
In the embodiment of the present application, in order to realize in preset time releasing session business, then it can be arranged according to preset time
One corresponding timer carries in the NAS message when AMF module sends NAS message and releases the information for putting timer；
Notice UE has handled the data in data handling queues before the timer expiry.
AMF module is after sending NAS message, the business that conversates again after waiting the timer expiry to reach release.
Step 203, SMF module then initiates release current sessions when determining the current time in system arrival preset time
The process of business.
It, can be according to the preset time in this example in order to realize the process in reasonable time release current sessions business
A variety of specific implementations are provided, comprising:
1, just only determined when to discharge current sessions industry according to the preset time after SMF module setting preset time
Business.The timer expiry of i.e. above-mentioned setting, then release immediately current sessions business.
2, negotiate the time to determine release current sessions business between SMF module and UE, discharge current meeting because postponing
The main purpose of call business is ensuring that the data in UE data handling queues have been processed, institute in this manner, if determine
Data in UE data handling queues have been processed, and SMF module then releases immediately current sessions business, and specific implementation may is that
SMF module is before determining that the current time in system reaches the preset time, if having received UE has handled data
The release request for the release current sessions business initiated after data in processing queue, then terminate the timer, and initiate to discharge
The process of current sessions business.
Because the release of current sessions is entirely to be initiated by core net in the prior art, UE does not have any chance to determine
When initiate the release of session, but which kind of time releasing session business be determined by data UE to be processed, so
The mode of direct releasing session business will lead to loss of data in the prior art；In scheme provided by the embodiment, UE and core
Releasing session business again after heart net side is held consultation, such network processes means are flexible and changeable, fully take into account terminal capabilities
Difference makes the opportunity of releasing session business more reasonable.
3, whether SMF module can also detect and receive when reaching the time for determining release current sessions business
UE sends release request, if be still not received by, terminates the timer, and initiates the stream of release current sessions business
Journey.
Embodiment two
As shown in figure 3, the embodiment of the present application also provides conversation modes optimization method in another 5G system, when the industry of UE
When business anchor point PSA is reoriented to second user face functional module UPF2 by the first original user plane functions module UPF1, comprising:
Since in the prior art, the release of current sessions is entirely to be initiated by core net, UE does not have any chance to determine
The fixed release for when initiating session, cannot fully take into account the difference of terminal capabilities, so will lead to the loss of data of data, base
In the problem the embodiment of the present application terminal side equipment UE after receiving NAS message, then can star release current sessions business
Preparation work, and after the data for having handled current sessions business active transmission release current sessions business release request.
Specific implementation may is that
Step 301, UE receives what conversation management functional SMF module was sent by accessing mobile management function AMF module
NAS message carries preset time in message；Wherein, the NAS message is used to indicate UE and needs to re-establish a session industry
Business；The preset time is used to indicate the time of the process of release current sessions business；
Step 302, UE has been handled in data handling queues after data, and it is described pre- to determine whether the current time in system does not reach
If the time, then the release request of release current sessions business is initiated to SMF module, so that SMF module discharges current sessions business
Process.
In the embodiment of the present application, release current sessions business is initiated by terminal, improves business reorientation efficiency and matter
Amount, mechanism are flexible.
Embodiment three
As shown in figure 4, the embodiment of the present application also provides a kind of conversation management functional SMF module, as the business anchor point PSA of UE
When being reoriented to second user face functional module UPF2 by the first original user plane functions module UPF1, which includes:
Time setting unit 401, for setting the preset time of releasing session business；
Optionally, which is specifically used for saving in the data handling queues for determining the UE pending
Send data and data to be received；Handling duration required for the complete data to be sent of calculation processing and data to be received, according to
The handling duration sets the preset time.
Message sending unit 402, for sending Non-Access Stratum to the UE by access mobile management function AMF module
NAS message carries the preset time in message；Wherein, the NAS message is used to indicate UE and needs to re-establish a session
Business；
Releasing unit 403, for initiating release current sessions after determining that the current time in system reaches the preset time
The process of business.
Further, the otherness of different terminals treatment effeciency, and the overall treatment efficiency of raising system in order to balance, this
Apply in scheme provided by embodiment, for UE after the corresponding data processing of current sessions business is complete, activly request release is current
Session service, then:
Before the releasing unit 403 is also used to determine that the current time in system reaches the preset time, if having received UE
The release request for having handled the release current sessions business initiated after data in data handling queues, then terminate the timer,
And initiate the process of release current sessions business.
Example IV
As shown in figure 5, the embodiment of the present application also provides a kind of terminal device, when terminal device UE business anchor point PSA by
When the first user plane functions module UPF1 originally is reoriented to second user face functional module UPF2, comprising:
Receiving unit 501 passes through access mobile management function AMF module hair for receiving conversation management functional SMF module
The non access stratum NAS message sent carries preset time in message；Wherein, the NAS message is used to indicate UE and needs to build again
Found a session service；The preset time is used to indicate the time of the process of release current sessions business；
Transmission unit 502 determines that the current time in system is for having handled in data handling queues after data in the UE
It is no not reach the preset time, then the release request of release current sessions business is initiated to SMF module, so that SMF module is released
Put the process of current sessions business.
Embodiment five
As shown in fig. 6, based on the same inventive concept, the embodiment of the present application also provides a kind of calculating equipment, referring to Fig. 6,
The equipment includes:
At least one processor 601, and
Memory 602, communication interface 603 with the communication connection of at least one described processor 601；
Wherein, the memory 602 is stored with the instruction that can be executed by least one described processor 601, it is described at least
It is real to execute the application using the communication interface 603 for the instruction that one processor 601 is stored by executing the memory 602
Apply in example one and/or embodiment two conversation modes optimization method in 5G system.
Based on the same inventive concept, the embodiment of the present application also provides a kind of computer readable storage medium, the calculating
Machine readable storage medium storing program for executing is stored with computer instruction, when the computer instruction is run on computers, so that computer is held
The method of the communication of network management described in row the embodiment of the present application and managed devices.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.)
Formula.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the application to the application
Mind and range.In this way, if these modifications and variations of the application belong to the range of the claim of this application and its equivalent technologies
Within, then the application is also intended to include these modifications and variations.
Claims (10)
1. conversation modes optimization method in a kind of 5G system, which is characterized in that when the business anchor point PSA of terminal device UE is by resetting
When position, comprising:
The preset time of conversation management functional SMF module setting releasing session business；
Non access stratum NAS message is sent to the UE by access mobile management function AMF module, is carried in message described default
Time；Wherein, the NAS message is used to indicate UE and needs to re-establish a session service；
SMF module then initiates the process of release current sessions business when determining the current time in system arrival preset time.
2. the method as described in claim 1, which is characterized in that conversation management functional SMF module sets releasing session business
Preset time includes:
Determine the data to be sent and data to be received saved in the data handling queues of the UE；
Handling duration required for the complete data to be sent of calculation processing and data to be received is set according to the handling duration
The preset time.
3. method according to claim 1 or 2, which is characterized in that this method further include:
SMF module is before determining that the current time in system reaches the preset time, if having received UE has handled data processing
The release request for the release current sessions business initiated after data in queue, then terminate the timer, and it is current to initiate release
The process of session service.
4. conversation modes optimization method in a kind of 5G system, which is characterized in that when the business anchor point PSA of UE reorientation, comprising:
UE receives conversation management functional SMF module and is disappeared by accessing the Non-Access Stratum NAS that mobile management function AMF module is sent
It ceases, carries preset time in message；Wherein, the NAS message is used to indicate UE and needs to re-establish a session service；It is described
Preset time is used to indicate the time of the process of release current sessions business；
UE has been handled in data handling queues after data, determines whether the current time in system does not reach the preset time, then to
SMF module initiates the release request of release current sessions business, so that the process of SMF module release current sessions business.
5. a kind of conversation management functional SMF module, which is characterized in that when the business anchor point PSA of UE reorientation, comprising:
Time setting unit, for setting the preset time of releasing session business；
Message sending unit, for sending non access stratum NAS message to the UE by access mobile management function AMF module,
The preset time is carried in message；Wherein, the NAS message is used to indicate UE and needs to re-establish a session service；
Releasing unit, for initiating release current sessions business after determining that the current time in system reaches the preset time
Process.
6. SMF module as claimed in claim 5, which is characterized in that the time setting unit is specifically used for determining the UE
Data handling queues in the data to be sent and data to be received that save；Complete data to be sent of calculation processing and to be received
Handling duration required for data sets the preset time according to the handling duration.
7. such as SMF module described in claim 5 or 6, which is characterized in that when the releasing unit is also used to determine that system is current
Between reach the preset time before, currently can if having received UE and having handled the release initiated after data in data handling queues
The release of call business is requested, then terminates the timer, and initiates the process of release current sessions business.
8. a kind of terminal device, which is characterized in that when the business anchor point PSA of terminal device UE reorientation, comprising:
Receiving unit, for receive conversation management functional SMF module by access mobile management function AMF module send it is non-
Access layer NAS message carries preset time in message；Wherein, the NAS message is used to indicate UE and needs to re-establish a meeting
Call business；The preset time is used to indicate the time of the process of release current sessions business；
Transmission unit determines whether the current time in system does not arrive for having handled in data handling queues after data in the UE
Up to the preset time, then the release request of release current sessions business is initiated to SMF module, so that the release of SMF module is current
The process of session service.
9. a kind of calculating equipment characterized by comprising
At least one processor, and
The memory that is connect at least one described processor communication, communication interface；
Wherein, the memory is stored with the instruction that can be executed by least one described processor, at least one described processor
By executing the instruction of the memory storage, side described in any one of 1-4 is required using the communication interface perform claim
Method.
10. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has computer to refer to
It enables, when the computer instruction is run on computers, so that computer is executed as of any of claims 1-4
Method.
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Application publication date: 20190709 |