CN108616938A - A kind of VOLTE business switch methods and device - Google Patents
A kind of VOLTE business switch methods and device Download PDFInfo
- Publication number
- CN108616938A CN108616938A CN201611137757.0A CN201611137757A CN108616938A CN 108616938 A CN108616938 A CN 108616938A CN 201611137757 A CN201611137757 A CN 201611137757A CN 108616938 A CN108616938 A CN 108616938A
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- volte
- base station
- source base
- mobility management
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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
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
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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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- Computer Networks & Wireless Communication (AREA)
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- Mobile Radio Communication Systems (AREA)
Abstract
The present invention provides a kind of VOLTE business switch methods and devices, wherein VOLTE business switch methods include：After the switching request that the source base station for receiving VOLTE service switchings is sent, before radio resource control RRC connection reconfiguration is completed, to mobility management entity transmitting path convert requests；The path integration request confirmation of mobility management entity feedback is received, path integration is completed.This programme does data forwarding in advance by proceeding by path integration before re-matching completion；The packet loss of volte during re-matching can be reduced, while other business can also be shifted to an earlier date with change data to Target cell；When solving under high ferro environment in the prior art volte business well and carrying out cell switching, the problem of causing data packetloss.
Description
Technical field
The present invention relates to field of communication technology, a kind of VOLTE business switch methods and device are particularly related to.
Background technology
X2 (interface between base station) switching flow is divided into switching and prepares in existing system, and switching executes and switching is completed.It cuts
It includes reporting measurement information by terminal to change set-up procedure, cell-of-origin receives observe and predict after, do switch decision, cell-of-origin sends switching and asks
It asks to Target cell, after Target cell admission control, hair switching access is replied.Hand-off execution process includes cell-of-origin hair weight
With message band switching command to terminal, after terminal receives, by band in reallocation message random access resource to Target cell do with
Machine accesses, while cell-of-origin is to Target cell transmission buffer data.Switching is completed, after random access success, Target cell
To mobility management entity MME hair path switch (path integration), MME is held to service Gateway (gateway) hairs
Modification signaling is carried, MME completes path switch and replys Target cell, and Target cell sends out terminal contexts release letter to cell-of-origin
It enables.
Existing switching flow is since whether uncertain Target cell can be successfully accessed, so just starting after re-matching completion
It converts in the channels path switch.But in now netting, under high ferro environment, when VOTE business (speech business based on IMS), due to
VOLTE data are UM (non-acknowledgement transmission mode) data, without the data forwarding (numbers in common hand-off execution process
According to forward), then it will packet loss to the volte data for re-matching the completion stage since re-matching.
Invention content
The purpose of the present invention is to provide a kind of VOLTE business switch methods and devices, solve high iron hoop in the prior art
When volte business carries out cell switching under border, the problem of causing data packetloss.
In order to solve the above-mentioned technical problem, the embodiment of the present invention provides a kind of VOLTE business switch methods, is applied to high ferro
The target BS of VOLTE service switchings under environment, including：
After the switching request that the source base station for receiving VOLTE service switchings is sent, radio resource control RRC connection reconfiguration
Before completion, to mobility management entity transmitting path convert requests；
The path integration request confirmation of mobility management entity feedback is received, path integration is completed.
Optionally, described after the switching request that the source base station for receiving VOLTE service switchings is sent, wireless heterogeneous networks
Before RRC connection reconfigurations are completed, include to the step of mobility management entity transmitting path convert requests：
After the switching request that the source base station for receiving VOLTE service switchings is sent, RRC connection reconfiguration processes start it
Before, to mobility management entity transmitting path convert requests.
Optionally, described after the switching request that the source base station for receiving VOLTE service switchings is sent, wireless heterogeneous networks
Before RRC connection reconfigurations are completed, include to the step of mobility management entity transmitting path convert requests：
When sending Handover Request Acknowledge to source base station, to mobility management entity transmitting path convert requests.
Optionally, after the switching request that the source base station for receiving VOLTE service switchings is sent, the VOLTE business is cut
The method of changing further includes：
While returning to Handover Request Acknowledge to source base station or later, to gateway transmission data packet.
Optionally, after completing path integration, the VOLTE business switch methods further include：
Receive the preface information that terminal is sent；
The terminal distribution ascending resource is given according to the preface information, and issues Timing Advance.
The present invention also provides a kind of VOLTE service switchings devices, are applied to the mesh of VOLTE service switchings under high ferro environment
Base station is marked, including：
First sending module, for after the switching request that the source base station for receiving VOLTE service switchings is sent, wirelessly providing
Before source controls the completion of RRC connection reconfigurations, to mobility management entity transmitting path convert requests；
First receiving module, the path integration request confirmation for receiving mobility management entity feedback are completed path and are turned
It changes.
Optionally, first sending module includes：
First sending submodule, for receive VOLTE service switchings source base station send switching request after, RRC
Before connection reconfiguration process starts, to mobility management entity transmitting path convert requests.
Optionally, first sending module includes：
Second sending submodule, for when sending Handover Request Acknowledge to source base station, being sent to mobility management entity
Path integration is asked.
Optionally, the VOLTE service switchings device further includes：
Second sending module, for receive VOLTE service switchings source base station send switching request after, Xiang Yuanji
Stand return Handover Request Acknowledge while or later, to gateway transmission data packet.
Optionally, the VOLTE service switchings device further includes：
Second receiving module, for after completing path integration, receiving the preface information that terminal is sent；
Processing module for giving the terminal distribution ascending resource according to the preface information, and issues Timing Advance.
The above-mentioned technical proposal of the present invention has the beneficial effect that：
In said program, the VOLTE business switch methods are carried by proceeding by path integration before re-matching completion
Before do data forwarding；The packet loss of volte during re-matching can be reduced, while other business can also be shifted to an earlier date with change data to mesh
Mark cell；When solving volte business progress cell switching under high ferro environment in the prior art well, data packetloss is caused
Problem.
Description of the drawings
Fig. 1 is the VOLTE business switch method flow diagrams of the embodiment of the present invention one；
Fig. 2 is the VOLTE business switch method concrete application flow diagrams of the embodiment of the present invention one；
Fig. 3 is the VOLTE service switching apparatus structure schematic diagrams of the embodiment of the present invention two.
Specific implementation mode
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
The present invention in view of the prior art in when volte business carries out cell switching under high ferro environment, cause data packetloss
The problem of, a variety of solutions are provided, it is specific as follows：
Embodiment one
As shown in Figure 1, the embodiment of the present invention one provides a kind of voice VOLTE business switch methods based on 4G networks, it can
Applied to the target BS of VOLTE service switchings under high ferro environment, including：
Step 11：After the switching request that the source base station for receiving VOLTE service switchings is sent, radio resource control RRC
Before connection reconfiguration is completed, to mobility management entity transmitting path convert requests, path integration is proceeded by；
Step 12：The path integration request confirmation of mobility management entity feedback is received, path integration is completed.
The VOLTE business switch methods that the embodiment of the present invention one provides before re-matching completion by proceeding by road
Diameter is converted, and does data forwarding in advance；The packet loss of volte during re-matching can be reduced, while other business can also be turned in advance
Data are changed to Target cell；When solving volte business progress cell switching under high ferro environment in the prior art well, cause
The problem of data packetloss.
Intermediate node is cut what the source base station for receiving VOLTE service switchings was sent at the beginning of path integration in this programme
After changing request, before radio resource control RRC connection reconfiguration is completed, two preferred time points are provided in the present embodiment：
Corresponding to first preferred time point, the switching sent in the source base station for receiving VOLTE service switchings
After request, before radio resource control RRC connection reconfiguration is completed, the step of to mobility management entity transmitting path convert requests
Including：After the switching request that the source base station for receiving VOLTE service switchings is sent, before RRC connection reconfiguration processes start, to
Mobility management entity transmitting path convert requests.
Corresponding to second preferred time point, the switching sent in the source base station for receiving VOLTE service switchings
After request, before radio resource control RRC connection reconfiguration is completed, the step of to mobility management entity transmitting path convert requests
Including：When sending Handover Request Acknowledge (switching access is replied) to source base station, converted to mobility management entity transmitting path
Request.
Certainly it can also be any time for meeting above-mentioned time point condition, be not limited thereto.
Further, after the switching request that the source base station for receiving VOLTE service switchings is sent, the VOLTE business
Switching method further includes：While returning to Handover Request Acknowledge to source base station or later, to gateway transmission data packet
packet data。
Further, after completing path integration, the VOLTE business switch methods further include：Receive terminal hair
The preface information sent；The terminal distribution ascending resource is given according to the preface information, and issues Timing Advance.
It is, target BS, must be with terminal after receiving the path integration request confirmation of MME in the embodiment of the present invention
It is synchronized with source base station cooperation, the RRC connection reconfiguration processes such as uplink assignment.
RRC connection reconfiguration process of the objectives base station after receiving the path integration request confirmation of MME is source base station hair
It send and re-matches to be switched order to terminal, terminal accesses target BS by random access procedure, and random access procedure includes terminal
Leading to send and (send preface information to target BS), target BS gives terminal distribution ascending resource, and issues Timing Advance,
The non-competing access target BS of terminal (being aligned with the uplink of target BS according to Timing Advance).
The VOLTE business switch methods provided below the embodiment of the present invention one are further described.
This programme is mainly in view of the switching in high ferro environment is known, i.e., under terminal is only possible to toward along high ferro
One station switching (Target cell of terminal switching is to determine)；So EPS bear (the LTE system network carrying) upper layer of terminal
Channel (starting corresponding to path integration path switch) can be built up (corresponding in UU mouthfuls (interface of terminal and base station) carrying
In being re-matched) before establish, i.e. path switch can re-match complete before establish；Therefore, this programme is in high ferro environment
While reply to cell-of-origin hair switching using Target cell or before, even terminal replys to target BS and re-matches completion
Before, path switch are, the packet loss of the volte in reconstitution process is reduced.
Improved flow, citing are as shown in Figure 2, wherein step 212- steps 216 execute before step 27；In addition,
Step 212 can also only be limited to be performed simultaneously with step 27, step 212- steps 216 can also be only limited or step 212 exists
It is executed before step 211.
It is, before RRC connection reconfiguration processes start, target BS is asked to the conversion of mobility management entity transmitting path
It asks；Alternatively, target BS when sending Handover Request Acknowledge to source base station, is asked to the conversion of mobility management entity transmitting path
It asks；Alternatively, before target BS receives the re-matching completion information that terminal is fed back, converted to mobility management entity transmitting path
Request.
Specifically, flow as shown in Figure 2, including：
Step 20：Territory restriction provides Area Restriction Provided, is a MME switching in this programme, also
There can be multiple MME to switch over；
Step 21：Measure control Measurement Control；
Step 22：Measurement report Measurement Reports；
Step 23：Switch decision HO decision；
Step 24：Switching request Handover Request；
Step 25：Admission control Admission Control；
Step 26：Handover Request Acknowledge Handover Request Ack；
Step 27：Re-match RRC Connonnection Reconfiguration
inclmobilityControlinformation；
Step 28：It goes to assist from cell-of-origin, arrives new cell synchronous Detach from old cell and
synchronize to new cell；
Step 29：Terminal carries out down-going synchronous Synchronisation with new cell；
Step 210：New cell is terminal distribution ascending resource and issues Timing Advance, terminal receiving time lead,
(UpLink allocation+TimeAdvance for UE, ascending resource distribution+time advance are synchronized for terminal uplink
Amount)；
Step 211：It re-matches and completes RRC Connonnection.Reconfiguration；
Step 212：Path integration asks Path Switch Request；
Step 213：Modification carrying request Modify Bearer Request；
Step 214：Downlink path converts Switch DL path；
Step 215：Modify Bearer Response are replied in modification carrying；
Step 216：Path integration request confirmation Path Switch Request Ack；
Step 217：User's context discharges UE Context Release；
Step 218：Release Resources are replied in release.
Wherein, Legend represents line style meaning, and L3signalling represents rrc layer signaling data；L1/L2
Signalling represents physical layer/MAC layer signaling data；User Data represent user face data；
UL allocation represent uplink assignment；DL allocation represent downlink distribution；Packet data represent number
It is transmitted according to packet；End Marker, which are represented, terminates data packet.
In short, the present embodiment is under high ferro scene, and in handoff procedure, VOTE business can not carry out data forwarding
Dataforward, provides a kind of scheme at the case where leading to data-bag lost, including：
First, switching preparation is completed, switch decision is done according to observing and predicting in including reporting measurement, cell-of-origin, Target cell
Reply switching access.
Then, Target cell receives the switching request of cell-of-origin, and if judged to receive the request, replying switching access, (source is small
Area receives access switching and replys), while initiating bearer update request (correspond to path integration) to MME, MME again to
Serving gateway send path switch message, do Path Setup in advance, carry out data forwarding (Path Setup is completed,
Serving Gateway stop forwarding data to cell-of-origin to Target cell forwarding terminal data)；Avoid hand-off execution process
In volte data-bag losts.
Later, after cell-of-origin receives access switching reply, the reallocation message with switching command is sent to terminal；It has re-matched
Cheng Hou, Target cell send context release to cell-of-origin, complete switching.
In conclusion scheme provided in an embodiment of the present invention, it is contemplated that the special screne of high ferro switching, i.e., along high ferro edge
Line, which is done, to be switched, and can learn switching cell in advance, can realize that upper channel is converted before re-matching, UU mouthfuls of configuration after the completion of re-matching
Carrying；And then the packet loss of the volte during re-matching is reduced, while it is small to target that other business can also be shifted to an earlier date with change data
Processing speed is improved in area.
Embodiment two
As shown in figure 3, second embodiment of the present invention provides a kind of voice VOLTE service switching devices based on 4G networks, it can
Applied to the target BS of VOLTE service switchings under high ferro environment, including：
First sending module 31, for receive VOLTE service switchings source base station send switching request after, wirelessly
Before resources control RRC connection reconfigurations are completed, to mobility management entity transmitting path convert requests, proceeds by path and turn
It changes；
Path is completed in first receiving module 32, the path integration request confirmation for receiving mobility management entity feedback
Conversion.
The VOLTE service switchings device provided by Embodiment 2 of the present invention before re-matching completion by proceeding by road
Diameter is converted, and does data forwarding in advance；The packet loss of volte during re-matching can be reduced, while other business can also be turned in advance
Data are changed to Target cell；When solving volte business progress cell switching under high ferro environment in the prior art well, cause
The problem of data packetloss.
Intermediate node is cut what the source base station for receiving VOLTE service switchings was sent at the beginning of path integration in this programme
After changing request, before radio resource control RRC connection reconfiguration is completed, two preferred time points are provided in the present embodiment：
Corresponding to first preferred time point, first sending module includes：First sending submodule, for connecing
After the switching request of source base station transmission for receiving VOLTE service switchings, before RRC connection reconfiguration processes start, to mobility pipe
Manage entity transmitting path convert requests.
Corresponding to second preferred time point, first sending module includes：Second sending submodule, for
When source base station sends Handover Request Acknowledge, to mobility management entity transmitting path convert requests.
Certainly it can also be any time for meeting above-mentioned time point condition, be not limited thereto.
Further, the VOLTE service switchings device further includes：Second sending module, for receiving VOLTE industry
After the switching request that the source base station of business switching is sent, while returning to Handover Request Acknowledge to source base station or later, to service network
Close transmission data packet.
Further, the VOLTE service switchings device further includes：Second receiving module, for completing path turn
After alternatively, the preface information that terminal is sent is received；Processing module, for giving the terminal distribution uplink according to the preface information
Resource, and issue Timing Advance.
It is, target BS, must be with terminal after receiving the path integration request confirmation of MME in the embodiment of the present invention
It is synchronized with source base station cooperation, the RRC connection reconfiguration processes such as uplink assignment.
RRC connection reconfiguration process of the objectives base station after receiving the path integration request confirmation of MME is source base station hair
It send and re-matches to be switched order to terminal, terminal accesses target BS by random access procedure, and random access procedure includes terminal
Leading to send and (send preface information to target BS), target BS gives terminal distribution ascending resource, and issues Timing Advance,
The non-competing access target BS of terminal (being aligned with the uplink of target BS according to Timing Advance).
Wherein, the realization embodiment of above-mentioned VOLTE business switch methods is suitable for the VOLTE service switching devices
Embodiment in, can also reach identical technique effect.
It should be noted that this many functional component described in this description is all referred to as module/submodule, so as to more
Add the independence for particularly emphasizing its realization method.
In the embodiment of the present invention, module/submodule can use software realization, to be executed by various types of processors.
For example, the executable code module of a mark may include the one or more physics or logic of computer instruction
Block, for example, it can be built as object, process or function.Nevertheless, the executable code of institute's mark module is not necessarily to
It is physically located together, but may include the different instructions being stored in different positions, combined when in these command logics
When together, constitutes module and realize the regulation purpose of the module.
In fact, executable code module can be the either many item instructions of individual instructions, and can even be distributed
It on multiple and different code segments, is distributed in distinct program, and is distributed across multiple memory devices.Similarly, it grasps
Making data can be identified in module, and can be realized according to any form appropriate and be organized in any appropriate class
In the data structure of type.The operation data can be collected as individual data collection, or can be distributed on different location
(including in different storage device), and can only be present in system or network as electronic signal at least partly.
When module can utilize software realization, it is contemplated that the level of existing hardware technique, it is possible to implemented in software
Module, in the case where not considering cost, those skilled in the art can build corresponding hardware circuit to realize correspondence
Function, the hardware circuit includes conventional ultra-large integrated (VLSI) circuit or gate array and such as logic core
The existing semiconductor of piece, transistor etc either other discrete elements.Module can also use programmable hardware device, such as
The realizations such as field programmable gate array, programmable logic array, programmable logic device.
Above-described is the preferred embodiment of the present invention, it should be pointed out that the ordinary person of the art is come
It says, under the premise of not departing from principle of the present invention, can also make several improvements and retouch, these improvements and modifications should also regard
For protection scope of the present invention.
Claims (10)
1. a kind of VOLTE business switch methods, are applied to the target BS of VOLTE service switchings under high ferro environment, feature exists
In, including：
After the switching request that the source base station for receiving VOLTE service switchings is sent, radio resource control RRC connection reconfiguration is completed
Before, to mobility management entity transmitting path convert requests；
The path integration request confirmation of mobility management entity feedback is received, path integration is completed.
2. VOLTE business switch methods according to claim 1, which is characterized in that described to cut receiving VOLTE business
After the switching request that the source base station changed is sent, before radio resource control RRC connection reconfiguration is completed, sent out to mobility management entity
The step of sending path integration to ask include：
After the switching request that the source base station for receiving VOLTE service switchings is sent, before RRC connection reconfiguration processes start, to
Mobility management entity transmitting path convert requests.
3. VOLTE business switch methods according to claim 1, which is characterized in that described to cut receiving VOLTE business
After the switching request that the source base station changed is sent, before radio resource control RRC connection reconfiguration is completed, sent out to mobility management entity
The step of sending path integration to ask include：
When sending Handover Request Acknowledge to source base station, to mobility management entity transmitting path convert requests.
4. VOLTE business switch methods according to claim 1, which is characterized in that receiving VOLTE service switchings
After the switching request that source base station is sent, the VOLTE business switch methods further include：
While returning to Handover Request Acknowledge to source base station or later, to gateway transmission data packet.
5. VOLTE business switch methods according to claim 1, which is characterized in that described after completing path integration
VOLTE business switch methods further include：
Receive the preface information that terminal is sent；
The terminal distribution ascending resource is given according to the preface information, and issues Timing Advance.
6. a kind of VOLTE service switchings device, is applied to the target BS of VOLTE service switchings under high ferro environment, feature exists
In, including：
First sending module, for receive VOLTE service switchings source base station send switching request after, radio resource control
Before RRC connection reconfigurations processed are completed, to mobility management entity transmitting path convert requests；
Path integration is completed in first receiving module, the path integration request confirmation for receiving mobility management entity feedback.
7. VOLTE service switchings device according to claim 6, which is characterized in that first sending module includes：
First sending submodule, for receive VOLTE service switchings source base station send switching request after, RRC connections
Before reconstitution process starts, to mobility management entity transmitting path convert requests.
8. VOLTE service switchings device according to claim 6, which is characterized in that first sending module includes：
Second sending submodule is used for when sending Handover Request Acknowledge to source base station, to mobility management entity transmitting path
Convert requests.
9. VOLTE service switchings device according to claim 6, which is characterized in that the VOLTE service switchings device is also
Including：
Second sending module, for after the switching request that the source base station for receiving VOLTE service switchings is sent, being returned to source base station
Return Handover Request Acknowledge while or later, to gateway transmission data packet.
10. VOLTE service switchings device according to claim 6, which is characterized in that the VOLTE service switchings device
Further include：
Second receiving module, for after completing path integration, receiving the preface information that terminal is sent；
Processing module for giving the terminal distribution ascending resource according to the preface information, and issues Timing Advance.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611137757.0A CN108616938A (en) | 2016-12-12 | 2016-12-12 | A kind of VOLTE business switch methods and device |
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| CN201611137757.0A CN108616938A (en) | 2016-12-12 | 2016-12-12 | A kind of VOLTE business switch methods and device |
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| CN113377710A (en) * | 2020-03-10 | 2021-09-10 | 中国移动通信集团湖南有限公司 | Data acquisition method and device and electronic equipment |
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