CN107277867A - A kind of business switch method and system based on LTE communication - Google Patents
A kind of business switch method and system based on LTE communication Download PDFInfo
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- CN107277867A CN107277867A CN201610214846.4A CN201610214846A CN107277867A CN 107277867 A CN107277867 A CN 107277867A CN 201610214846 A CN201610214846 A CN 201610214846A CN 107277867 A CN107277867 A CN 107277867A
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- base station
- former base
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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
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of business switch method based on LTE communication and system, wherein, the business switch method based on LTE communication, including：Former base station judges the connection type of the former base station and target BS；In the state of the former base station is connected in the former base station with the connection type of the target BS for X2 interface, replicates the configuration parameter of the present terminal at former base station and export to the target BS；The target BS receives the configuration parameter by the X2 interface, and performs the switching command according to the configuration parameter.The present invention uses above-mentioned technical proposal, and without replacement, accordingly reusable configuration parameter is that handoff functionality can be achieved in handoff procedure, compared with prior art, has saved service disconnection time delay in the reset time of configuration parameter, reduction service switch process.
Description
Technical field
LTE (Long Term are based on the present embodiments relate to wireless communication technology field, more particularly to one kind
Evolution, Long Term Evolution) communication business switch method and system.
Background technology
With the development of wireless mobile telecommunication technology, communication system is proposed to high-speed, low latency, low cost
Higher and higher requirement, LTE projects are just generated in this context, pursue higher peak rate
With shorter propagation delay time.
In physical-layer techniques, LTE employs OFDM (Orthogonal Frequency Division
Multiplexing OFDMs), (Multiple Input Multiple Output multi inputs are more by MIMO
Output) etc. advanced Radio Transmission Technology and link circuit self-adapting scheduling mode and interference coordination based on channel
Technology.The speed and cell throughout of user is further increased, improves cell-edge performance.
In the evolution of wireless communication technology, the delay of packet is an important transmission performance indicators.
Many service features are influenceed by Packet Delay in current LET communication items, for example：Game, video
Phone/meeting etc..Some following business are also, such as remote control/driving car harsh to delay requirement
, machine communication and critical communication etc..So in order to ensure LTE evolution and competitiveness, it is necessary to grind
Study carefully the method for reduction packet delay.It is as shown in table 1 below：
Table 1
| Step | Time (ms) |
| Switching command message and replacement protocol stack | 15 |
| Adjust radio frequency and security update | 20 |
| The signal delay of random intervention target BS | 0.5—2.5 |
| The transmission of lead code | 1 |
| Terminal distribution and tracking time | 3—5 |
| Terminal sends handoff completion message | 6 |
The time distribution map of existing LTE communication service switch process, its whole handoff procedure at least need through
Crossing switching command message and resetting protocol steps, adjustment radio frequency and security update needs step, generally switching life
Make message and reset the time 20ms that the protocol stack time is 15ms or so, adjustment radio frequency and security update, with
The channel latency of machine intervention target BS needs 0.5 millisecond to 2.5 milliseconds, the milli of transmission time 1 of lead code
Second, terminal distribution and 3 to 5 milliseconds of time of tracking, terminal, which sends handoff completion message, needs 6 milliseconds.
In summary, in the prior art, in LTE projects, its handoff procedure at least needs delay 45.5
Millisecond.The time delay greatly reduces the efficiency of channel switching process.
The content of the invention
The present invention provides a kind of business switch method and system based on LTE communication, can effectively reduce business
Switching time, meet the requirement to switching delay in communication system.
In a first aspect, the embodiments of the invention provide a kind of business switch method based on LTE communication, its
In, including：Former base station judges the connection type of the former base station and target BS；The former base station is in described
In the state of former base station is connected with the connection type of the target BS for X2 interface, the former base station is replicated
Present terminal configuration parameter give the target BS；The target BS is received by the X2 interface
The configuration parameter, and the switching command is performed according to the configuration parameter.
Second aspect, the embodiment of the present invention additionally provides a kind of service switchover system based on LTE communication,
Wherein, including：First judging unit, is configured in former base station, to receive a switching command, and according to
The switching command judges the connection type at the former base station and a target BS；Copied cells, is configured at institute
State in former base station, in the former base station in the target BS connection type for X2 interface connect when,
Replicate configuration parameter and the output of the present terminal at the former base station；Switch unit, is configured at the target base
In standing, the switching command is performed to receive the configuration parameter, and according to the configuration parameter.
In the present invention, by the way that the configuration parameter of the present terminal at former base station is sent to target by X2 interface
Base station is directly realized by it and switches purpose, solves the excessive technical problem of service switching time delay in the prior art,
Using aforesaid way, without replacement, accordingly reusable configuration parameter is that can be achieved to cut in handoff procedure
Function is changed, compared with prior art, business in the reset time of parameter, reduction service switch process has been saved
Interrupt time delay.
Brief description of the drawings
Fig. 1 is the flow chart of the business switch method based on LTE communication in the embodiment of the present invention one；
Fig. 2 is the flow chart of the business switch method based on LTE communication in the embodiment of the present invention two；
Fig. 3 is the structural representation of the service switchover system based on LTE communication in the embodiment of the present invention three；
Fig. 4 is the structural representation of the service switchover system based on LTE communication in the embodiment of the present invention four；
Fig. 5 is the service switching signaling diagram based on LTE communication in the embodiment of the present invention five.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this
The specific embodiment of place description is used only for explaining the present invention, rather than limitation of the invention.Also need in addition
It is noted that illustrate only part related to the present invention for the ease of description, in accompanying drawing and not all knot
Structure.
Embodiment one
Fig. 1 is the flow chart for the business switch method based on LTE communication that the embodiment of the present invention one is provided,
The present embodiment is applicable to the service switchover of LTE communication, specifically includes following steps：
A1, former base station judge the connection type of above-mentioned former base station and target BS.
A2, above-mentioned former base station are connected in above-mentioned former base station with the connection type of above-mentioned target BS for X2 interface
In the state of, replicate the configuration parameter of the present terminal at former base station and export to the target BS.
Wherein, X2 interface is the interconnection interface between base station, supports the direct transmission of data and signaling, base
Interconnected between standing by X2 interface, form mesh network.Configuration parameter is at least matched somebody with somebody including protocol stack
Put the current value of parameter and state parameter and/or security key parameter and variable.
A3, target BS receive above-mentioned configuration parameter by above-mentioned X2 interface, and according to above-mentioned configuration parameter
Perform above-mentioned switching command.
The operation principle of the business switch method based on LTE communication：
The technical scheme of the present embodiment, by the way that the configuration parameter of former base station present terminal is sent out by X2 interface
Target BS is delivered to, configuration parameter at least includes protocol stack arrangement parameter and state parameter and/or safe key
The current value of parameter and variable, target BS directly performs switching command according to configuration parameter, solved
The excessive technical problem of service switching time delay in the prior art, need not in handoff procedure using aforesaid way
The configuration parameter for resetting corresponding repeatable application is that handoff functionality can be achieved, and compared with prior art, is saved
Service disconnection time delay in the reset time of parameter, reduction service switch process.
On the basis of above-mentioned technical proposal, switching command includes not resetting predefined parameter configuration-direct, in advance
Parameter is determined for reusable configuration parameter, such as indicates not reset protocol stack and/or refer in switching command
Show and do not update safe key.In switching command include it is above-mentioned do not reset after predefined parameter configuration-direct, switch
During, former base station sends to terminal and does not reset predefined parameter configuration-direct, when reducing predefined parameter replacement
Between.
On the basis of above-mentioned technical proposal, configuration parameter can at least include Current protocol stack parameter and state is joined
In number and/or security key parameter, service switch process, when configuration parameter is only joined comprising Current protocol stack
When number and state parameter, the protocol stack parameter and state parameter of terminal are the configuration parameter of repeatable application, are adopted
Be to annul the agreement the reset time of stack and state parameter with the purpose of such a mode, in reduction handoff procedure
Service disconnection time delay, when configuration parameter is comprising Current protocol stack parameter, state parameter and security key parameter,
The reset time of terminal protocol stack parameter is not only eliminated, while also eliminating AS layers of security key parameter weight
The time is put, the time delay of service disconnection is further reduced.
On the basis of above-mentioned technical proposal, step A3 is specifically included：
A31, above-mentioned target BS are read after above-mentioned configuration parameter by above-mentioned X2 interface, are matched somebody with somebody according to above-mentioned
Put parameter and do GTP tunnel renewal processing with reference to above-mentioned mobility management entity.
A32, above-mentioned former base station issue switching command to the terminal, so that the terminal connects the target
Base station.
Embodiment two
Fig. 2 is the flow chart for the business switch method based on LTE communication that the embodiment of the present invention two is provided,
The present embodiment is on the basis of the various embodiments described above, it is preferable that before step A1, in addition to,
A01, former base station are under connection status in terminal, receive the measurement that above-mentioned terminal is presently in environment
Report.
A02, above-mentioned former base station do switching judging processing to above-mentioned measurement report, and form a switching judging knot
Really.A03, above-mentioned former base station form above-mentioned switching command according to above-mentioned switching judging result.
The technical scheme of the present embodiment, forms switching by making a decision processing to the measurement report of terminal in advance and sentences
Disconnected result, switching command is formed according to switching judging result, and it is intended to the success rate for improving switching, and reduction is cut
The time changed, while also reducing the time delay of service switching.
On the basis of each above-mentioned embodiment, in addition to step A4, above-mentioned target BS are above-mentioned in performing
After switching command, control terminal updates current above-mentioned key security parameter.It is intended to improve communication data
Security.
Embodiment three
Fig. 3 show the structure of the service switchover system based on LTE communication of the offer of the embodiment of the present invention three
Schematic diagram, the present embodiment is applicable to the service switchover of LTE communication, and the business based on LTE communication of being somebody's turn to do is cut
The concrete structure for changing system is as follows：
Service switchover system based on LTE communication includes the first judging unit 1, and the first judging unit 1 is matched somebody with somebody
Be placed in former base station, to receive a switching command, and according to above-mentioned switching command judge a former base station with it is upper
State the connection type of target BS；Copied cells 2, is configured in the former base station, in above-mentioned former base
Stand when the connection type of above-mentioned target BS connects for X2 interface, replicate being currently configured for above-mentioned former base station
Parameter is simultaneously exported；Switch unit 3, is configured in the target BS, to receive above-mentioned configuration parameter,
And above-mentioned switching command is performed according to above-mentioned configuration parameter.
The operation principle of the service switchover system of the LTE communication is：First judging unit 1 judges a former base
The connection type stood with a target BS；When former base station is connected in the connection type of target BS for X2 interface
When, copied cells 2 replicates the configuration parameter of the present terminal at former base station and exported to switch unit 3, switching
Unit 3 performs switching command according to configuration parameter.
The technical scheme of the present embodiment, the current configuration parameters at former base station are read by copied cells 2, and will
The configuration parameter is sent to switch unit 3, is solved in service switch process, it is to avoid can in configuration parameter
The technical problem of the secondary replacement of parameter of reuse, when having reached service disconnection in reduction service switch process
The effect prolonged.
On the basis of above-mentioned technical proposal, switching command includes not resetting predefined parameter configuration-direct, in advance
Parameter is determined for reusable configuration parameter, such as indicates not reset protocol stack, state ginseng in switching command
Number and/or instruction do not update safe key.In switching command include it is above-mentioned do not reset predefined parameter configuration refer to
After order, in handoff procedure, former base station sends to terminal and does not reset predefined parameter configuration-direct, reduces predetermined
Parameter reset time.
On the basis of above-mentioned technical proposal, it is preferable that configuration parameter at least include Current protocol stack parameter,
State parameter and/or security key parameter.In service switch process, when configuration parameter is only comprising current association
When discussing stack parameter, the protocol stack parameter and state parameter of terminal are the repeatable configuration parameter applied, using this
The purpose of kind of mode is to annul the agreement the reset time of stack, the service disconnection time delay in reduction handoff procedure,
When configuration parameter is comprising Current protocol stack parameter, state parameter and security key parameter, end is not only eliminated
The reset time of protocol stack parameter is held, while also eliminating AS layers of security key parameter reset time, is more entered
One step reduces the time delay of service disconnection.
Example IV
Fig. 4 is the structural representation for the service switchover system based on LTE communication that the embodiment of the present invention four is provided
Figure, the present embodiment is on the basis of the various embodiments described above, it is preferable that also include,
Measuring unit 4, in being configured at, to be in the terminal under connection status, measures above-mentioned terminal
Current com-munication environment, and formed a measurement report output；Second judging unit 5, is configured at the former base
In standing, receive above-mentioned measurement report, and judged result is switched according to above-mentioned measurement report formation one；Order shape
Into unit 6, it is configured in the former base station, receives above-mentioned switching judging result, and sentence according to above-mentioned switching
Disconnected result forms above-mentioned switching command.
The technical scheme of the present embodiment, the communication environment of present terminal is measured by measuring unit 4, and is formed
One measurement report is sent, it is desirable to provide the success rate of switching, the time of switching is reduced, while also reducing business
The time delay of switching.
On the basis of each above-mentioned embodiment, it is preferable that also include, tunnel switch unit 3 is configured at
In the target BS, read after configuration parameter, GTP is done according to configuration parameter combination mobility management entity
Tunnel hand-off process；So that terminal is connected to target BS.Updating block, in perform switching command after,
A terminal is controlled to update current security key parameter.It is intended to the security for improving communication data.
Embodiment five
Fig. 5 is the service switching signaling diagram based on LTE communication that the embodiment of the present invention five is provided, and its is specific
Workflow it is as follows：
Step 1, former base station are in receiving the measurement that the terminal is presently in communication environment under terminal connection status
Report；
Step 2, former base station form all according to measurement report and change judged result；
Step 3, former base station produce a switching life according to switching judging result between target BS and former base station
Order；
The protocol stack parameter of present terminal is replicated at step 4, former base station, and protocol stack parameter is sent to target
Base station；
Step 5, former base station send a switching command to terminal to terminal, and switching command indicates to include not resetting
Protocol stack indicates and/or not updated security key parameter instruction；
Step 6, target BS realize the tunnel switching between target BS and mobility management entity,
Step 7, in tunnel switching after the completion of, terminal is connected to target BS, completes service switch process；
The transmission of data is carried out after the completion of switching between step 8, terminal and target BS；
Step 9, target BS send the instruction of more new key security parameter, terminal more new key peace to terminal
Population parameter and the transmission for realizing data.
Above-mentioned terminal can perform the method that any embodiment of the present invention is provided, and possess the corresponding work(of execution method
Can module and beneficial effect.
If desired, difference in functionality discussed herein can with different order perform and/or each other
Perform simultaneously.In addition, if desired, one or more functions described above can be optional
Or can be combined.
If desired, each step is not limited to the execution sequence in each embodiment as discussed above, no
It can be performed and/or be performed simultaneously with one another with different order with step.In addition, in other embodiments, with
Upper described one or more steps can be optional or can be combined.
Although various aspects of the invention are provided in the independent claim, the other side bag of the present invention
The appurtenance for including the feature from described embodiment and/or the feature with independent claims will
The combination asked, and be only not the combination clearly provided in claim.
Although it is to be noted here that the foregoing describing the example embodiment of the present invention, these are retouched
State to be understood in a limiting sense.On the contrary, several change and modifications can be carried out and not
Away from the scope of the present invention as defined in appended claims.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.Those skilled in the art
It will be appreciated that the invention is not restricted to specific embodiment described here, can enter for a person skilled in the art
Row it is various it is obvious change, readjust and substitute without departing from protection scope of the present invention.Therefore, though
So the present invention is described in further detail by above example, but the present invention be not limited only to
Upper embodiment, without departing from the inventive concept, can also include other more equivalent embodiments,
And the scope of the present invention is determined by scope of the appended claims.
Claims (12)
1. a kind of business switch method based on LTE communication, it is characterised in that including：
Former base station judges the connection type of the former base station and target BS；
The shape that the former base station is connected in the former base station with the connection type of the target BS for X2 interface
Under state, replicate the configuration parameter of the present terminal at the former base station and export to the target BS；
The target BS receives the configuration parameter by the X2 interface, and according to the configuration parameter
Perform the switching command.
2. the business switch method according to claim 1 based on LTE communication, it is characterised in that：
The former base station before the connection type of the former base station and the target BS is judged, in addition to,
The former base station is under connection status in terminal, receives the measurement report that the terminal is presently in environment
Accuse；
Switching judging processing is done at the former base station to the measurement report, and forms a switching judged result；
The former base station forms the switching command according to the switching judging result.
3. the business switch method according to claim 1 or 2 based on LTE communication, its feature exists
In：Target BS receives the configuration parameter by the X2 interface, and is performed according to the configuration parameter
The switching command is specifically included：
The target BS does GTP tunnel more according to the configuration parameter with reference to the mobility management entity
New processing；
The former base station issues switching command to the terminal, so that the terminal connects the target BS.
4. the business switch method according to claim 1 based on LTE communication, it is characterised in that
At least include not updating the instruction of Current protocol stack in the switching command and/or do not update safe key instruction.
5. the business switch method according to claim 1 based on LTE communication, it is characterised in that：
The configuration parameter at least includes Current protocol stack configuration parameter and state parameter and/or security key parameter.
6. the business switch method according to claim 5 based on LTE communication, it is characterised in that：
Also include,
The target BS is in performing after the switching command, and control terminal updates current key safety
Parameter.
7. a kind of service switchover system based on LTE communication, it is characterised in that including：
First judging unit, is configured in former base station, to receive a switching command, and according to the switching
The former base station of command determination one and the connection type of the target BS；
Copied cells, is configured in the former base station, in the former base station in the company of the target BS
When connecing type for X2 interface connection, configuration parameter and the output of the present terminal at the former base station are replicated；
Switch unit, is configured in the target BS, to receive the configuration parameter, and according to described
Configuration parameter performs the switching command.
8. the service switchover system according to claim 7 based on LTE communication, it is characterised in that：
Also include,
Measuring unit, is configured in terminal, to be in the terminal under connection status, measures the end
The current com-munication environment at end, and form a measurement report and export；
Second judging unit, is configured in the former base station, receives the measurement report, and survey according to described
Amount report forms one and switches judged result；
Order forms unit, is configured in the former base station, receives the switching judging result, and according to institute
State switching judging result and form the switching command.
9. the service switchover system according to claim 7 based on LTE communication, it is characterised in that：
Tunnel switch unit, is configured in the target BS, reads after the configuration parameter, according to described
Configuration parameter does GTP tunnel hand-off process with reference to a mobility management entity；So that terminal be connected to it is described
Target BS.
10. the service switchover system according to claim 7 based on LTE communication, it is characterised in that：
The configuration parameter at least includes Current protocol stack parameter and state parameter and/or security key parameter.
11. the service switchover system according to claim 7 based on LTE communication, it is characterised in that：
At least include not updating the instruction of Current protocol stack in the switching command and/or do not update safe key instruction.
12. the service switchover system according to claim 10 based on LTE communication, it is characterised in that：
Also include,
Updating block, is configured in the terminal, in performing after the switching command, to update current
The security key parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610214846.4A CN107277867A (en) | 2016-04-08 | 2016-04-08 | A kind of business switch method and system based on LTE communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610214846.4A CN107277867A (en) | 2016-04-08 | 2016-04-08 | A kind of business switch method and system based on LTE communication |
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| Publication Number | Publication Date |
|---|---|
| CN107277867A true CN107277867A (en) | 2017-10-20 |
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ID=60052496
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610214846.4A Withdrawn CN107277867A (en) | 2016-04-08 | 2016-04-08 | A kind of business switch method and system based on LTE communication |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101940028A (en) * | 2008-02-11 | 2011-01-05 | 高通股份有限公司 | Quality of service continuity |
| US20150099519A1 (en) * | 2012-06-27 | 2015-04-09 | Fujitsu Limited | Method for Processing In-device Coexistence Configuration Information, Apparatus and System |
-
2016
- 2016-04-08 CN CN201610214846.4A patent/CN107277867A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101940028A (en) * | 2008-02-11 | 2011-01-05 | 高通股份有限公司 | Quality of service continuity |
| US20150099519A1 (en) * | 2012-06-27 | 2015-04-09 | Fujitsu Limited | Method for Processing In-device Coexistence Configuration Information, Apparatus and System |
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