CN109429281A - A kind of business switch method based on dual link framework, terminal and base station - Google Patents
A kind of business switch method based on dual link framework, terminal and base station Download PDFInfo
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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
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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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
- H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
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Abstract
The invention discloses a kind of business switch method based on dual link framework, terminal and base stations, method includes: source base station before determining that terminal device needs to carry out service switching according to measurement reporting message, sets the state for the target BS that terminal device to be switched to the auxiliary base station state of terminal device；Source base station is when determining that terminal device needs to carry out service switching according to measurement reporting message, the state of the source base station stored in terminal device is switched to auxiliary base station state and the state of the target BS stored in terminal device is switched to master base station state by auxiliary base station state by controlling terminal equipment, and control target BS enters the preparation state that target BS state is switched to master base station state by auxiliary base station state；When source base station, which is received, indicates information by the handover success that target BS is sent, then current state is switched to auxiliary base station state by master base station state, and control target BS is switched to master base station state, finishing service switching by auxiliary base station state.
Description
Technical field
The present invention relates to wireless communication technology field more particularly to a kind of business switch method based on dual link framework,
Terminal and base station.
Background technique
Service switch process is the important link that terminals in wireless communication systems is communicated with base station, when terminal is from source base
When being moved to the cell of purpose base station in the cell stood, it will occur for the business datum of terminal between source base station and purpose base station
Switching.
Following defect exists in the prior art in inventor in the actual operation process:
The handoff procedure of LTE (Long Term Evolution, long term evolution) system generally comprises switching and prepares at present,
Switching executes and three steps are completed in switching, as shown in Figure 1.
In handoff preparation phase, source cell sends switching request message and takes to Target cell, and in switching request message
Band switches over information necessary to preparation in Target cell, if Target cell ratifies the switching request, Target cell is quasi-
It is standby to switch and send Handover Request Acknowledge (Handover Request Acknowledge) to source cell, when source cell receives
To after the confirmation message, then switching command, i.e. RRC Connection are sent to UE (User Equipment, user terminal)
Rebconfiguration (RRC rebuilds configuration), so that UE be made to execute switching.
In handover execution stage, after UE receives switching command, then random access is carried out with Target cell.When UE is small to target
Area sends confirmation instruction, i.e. RRC Connection Reconfiguration Complete (RRC rebuilds configuration and completes), UE
It can then be communicated with Target cell.Meanwhile source cell by it is not sent go out data cached be given to Target cell.
In the switching completion stage, as the RRC Connection Reconfiguration that Target cell UE is sent
After Complete, then MME is notified to change UE downstream data paths, when Target cell receives the Path Switch sent back to from MME
After ACK (path handover success) message, then source cell is notified to discharge UE Context resource, completes switching.
In above-mentioned handoff procedure, when source base station sends RRC Connection Recon figuration message to UE
Afterwards, source base station will be terminated and be transmitted with the data of UE, until target BS receives the RRC Connection of UE transmission
After Reconfiguration Complete message, UE could carry out data transmission with target BS, and data transmission will during this
45~49ms is interrupted, as shown in Figure 2.
Therefore, handoff procedure in the prior art there is technical issues that service surface.
Summary of the invention
The present invention provides a kind of business switch method based on dual link framework, terminal and base station, to solve existing skill
Handoff procedure in art there is technical issues that service surface.
First aspect present invention provides a kind of business switch method based on dual link framework, which comprises
Source base station determines that the terminal device needs to carry out business and cuts in the measurement reporting message sent according to terminal device
Before alternatively, it sets the state for the target BS that the terminal device to be switched to the auxiliary base station state of the terminal device；Its
In, the current state of the source base station is the master base station state of the terminal device, and the target BS is the source base station root
The base station determined according to the measurement reporting message；
The source base station determines that the terminal device needs to carry out industry in the measurement reporting message sent according to terminal device
When business switching, the terminal device is controlled by the state of the source base station stored in the terminal device and is switched to the prothetic group
State of standing and the state of the target BS stored in the terminal device is switched to the master by the auxiliary base station state
Base station state, and the control target BS enter the target BS state be switched to by the auxiliary base station state it is described
The preparation state of master base station state；
It, then will be described current when the source base station, which is received, indicates information by the handover success that the target BS is sent
State is switched to the auxiliary base station state, and the control target BS by the auxiliary base station state by the master base station state
Be switched to the master base station state so that the terminal device be able to use from different contextual information before switching respectively with
The target BS and the source base station carry out data interaction, finishing service switching.
In possible embodiment, it is arranged in the state for the target BS that the source base station to be switched the terminal device
After the auxiliary base station state of the terminal device, the method also includes:
The source base station establishes separation carrying.
In possible embodiment, the source base station is controlled described in the terminal device will store in the terminal device
The state of target BS is switched to the master base station state by the auxiliary base station state, and the control target BS enter by
The target BS state is switched to the preparation state of the master base station state by the auxiliary base station state, comprising:
When the source base station receives the handover measurement reporting message that the terminal device is sent, Xiang Suoshu target BS hair
Send switching request message；It wherein, include first state switching command in the switching request message, the first state switching refers to
Order, which is used to indicate the target BS and enters, is switched to the main base by the auxiliary base station state for the state of the target BS
The preparation state for state of standing；
When the source base station receives the switching request acknowledgement message sent by the target BS, Xiang Suoshu terminal is set
Preparation send indication message；It wherein, include the second status switching instruction in the indication message, second state is cut
Change instruction be used to indicate the terminal device state of the source base station stored in the terminal device is switched to it is described auxiliary
Base station state and the state of the target BS stored in the terminal device is switched to the master base station state.
It is described to be referred to when the source base station is received by the handover success that the target BS is sent in possible embodiment
When showing information, then the current state is switched to the auxiliary base station state, and the control mesh by the master base station state
It marks base station and the master base station state is switched to by the auxiliary base station state, comprising:
The data cached of the terminal device is sent to the target BS by the source base station；Wherein, the caching number
When according to the state for the source base station being the master base station state, it is not issued to the data of the terminal device；
The source base station is sent to the target BS is used to indicate the data cached end label for sending end, with
It marks the target BS based on the end, the state of the target BS is switched to by the auxiliary base station state described
Master base station state；
The current state is switched to the auxiliary base station state by the master base station state by the source base station.
In possible embodiment, the source base station determines the end in the measurement reporting message sent according to terminal device
Before end equipment needs to carry out service switching, the terminal is set by the state for the target BS that the terminal device to be switched
The auxiliary base station state of equipment, comprising:
At least one information including at least one candidate BS in the measurement reporting message is determined in the source base station
When, target BS is determined from least one described candidate BS；
Set the state of the target BS to the auxiliary base station state of the terminal device.
Second aspect of the present invention provides a kind of business switch method based on dual link framework, which comprises
The prothetic group station addition instruction information that target BS is sent according to the source base station received, by working as the target BS
Preceding state is set as the auxiliary base station state of terminal device；Wherein, the state of the source base station is the master base station of the terminal device
State；
The target BS is when receiving the switching request message sent by the source base station, by the current shape
State is switched to the preparation state of master base station state by the auxiliary base station state；
The target BS receive sent by the terminal device reconfigure complete message after, the target BS to
The source base station, which is sent, switches successfully instruction information, so that the source base station is based on the handover success and indicates information, it will be described
The state of source base station is switched to the auxiliary base station state by the master base station state；
The current state is switched to the master base station state by the auxiliary base station state by the target BS, so that institute
State terminal device be able to use from different contextual information before switching respectively with the target BS and the source base station into
Row data interaction, finishing service switching.
In possible embodiment, added in the target BS according to the prothetic group station sent by the source base station is received
It indicates information, sets the current state of the target BS to after the auxiliary base station state of terminal device, the method is also wrapped
It includes:
The target BS establishes separation carrying.
In possible embodiment, enters in the target BS and switch the current state by the auxiliary base station state
After the preparation state of main base station state, the method also includes:
The target BS sends switching request acknowledgement message to the source base station, so that the source base station is based on described cut
Request confirmation message is changed, the terminal device is controlled by the state of the source base station stored in the terminal device and is switched to institute
It states auxiliary base station state and the state of the target BS stored in the terminal device is switched to the master base station state.
In possible embodiment, enters in the target BS and switch the current state by the auxiliary base station state
After the preparation state of main base station state, the method also includes:
The target BS is to mobility management entity transmitting path indication message, so that the mobile management is real
The downstream data paths of the terminal device are switched to the target BS by the source base station by body；
The target BS receives the path switch acknowledgment message sent by the mobility management entity.
In possible embodiment, the current state is switched to described by the target BS by the auxiliary base station state
Master base station state, comprising:
Target BS reception is sent data cached by the source base station, and is used to indicate the data cached hair
The end of end is sent to mark；Wherein, it is not sent when the data cached state for the source base station is the master base station state
To the data of the terminal device；
The target BS is based on the path switch acknowledgment message and the end marks, by the current state
The master base station state is switched to by the auxiliary base station state.
Third aspect present invention provides a kind of business switch method based on dual link framework, which comprises
Terminal device will cut the terminal device before receiving the indication message sent by the source base station
The target BS changed is set as the auxiliary base station state of the terminal device；Wherein, the current state of the source base station is the end
The master base station state of end equipment, the target BS are the measurement reporting message that the source base station is sent according to the terminal device
Determining base station；
The terminal device is when receiving the indication message, the source base that will store in the terminal device
The state stood is switched to the auxiliary base station state and by the state of the target BS stored in the terminal device by described
Auxiliary base station state is switched to the master base station state, completes reconfiguration course；
The terminal device reconfigures to target BS transmission and completes message, so that the target BS is by the mesh
The state of mark base station is switched to the master base station state by the auxiliary base station state, and the target BS is made to notify the source
The state of the source base station is switched to the auxiliary base station state by the master base station state, so that the terminal device by base station
It is able to use the contextual information different from before switching and carries out data interaction with the target BS and the source base station respectively,
Finishing service switching.
In possible embodiment, the terminal device is set as in the target BS to be switched the terminal
After auxiliary base station state, the method also includes:
The terminal device establishes separation carrying.
Fourth aspect present invention provides a kind of base station, comprising:
Setup module, for determining that the terminal device needs to carry out in the measurement reporting message sent according to terminal device
Before service switching, it sets the state for the target BS that the terminal device to be switched to the prothetic group station shape of the terminal device
State；Wherein, the current state of the base station is the master base station state of the terminal device, and the target BS is the base station root
The base station determined according to the measurement reporting message；
Control module, for determining that the terminal device needs to carry out in the measurement reporting message sent according to terminal device
When service switching, the terminal device is controlled by the state of the base station stored in the terminal device and is switched to the prothetic group
State of standing and the state of the target BS stored in the terminal device is switched to the master by the auxiliary base station state
Base station state, and the control target BS enter the target BS state be switched to by the auxiliary base station state it is described
The preparation state of master base station state；
Switching module then will be described for when receiving the handover success sent by the target BS and indicating information
Current state is switched to the auxiliary base station state, and the control target BS by the prothetic group station by the master base station state
State is switched to the master base station state, so that the terminal device is able to use the contextual information different from before switching point
Data interaction, finishing service switching are not carried out with the target BS and the base station.
In possible embodiment, the base station further include:
Module is established, for establishing separation carrying.
In possible embodiment, the control module is specifically used for:
When receiving the handover measurement reporting message that the terminal device is sent, Xiang Suoshu target BS sends switching request
Message；It wherein, include first state switching command in the switching request message, the first state switching command is used to indicate
The target BS enters the standard that the state of the target BS is switched to the master base station state by the auxiliary base station state
Standby state；
When receiving the switching request acknowledgement message sent by the target BS, Xiang Suoshu terminal device sends switching
Indicate information；It wherein, include the second status switching instruction in the indication message, second status switching instruction is used for
Indicate the terminal device by the state of the base station stored in the terminal device be switched to the auxiliary base station state and
The state of the target BS stored in the terminal device is switched to the master base station state.
In possible embodiment, the switching module is specifically used for:
Data cached by the terminal device is sent to the target BS；Wherein, described data cached for the base
When the state stood is the master base station state, it is not issued to the data of the terminal device；
It is sent to the target BS and is used to indicate the data cached end label for sending end, so that the target
Base station is marked based on the end, and the state of the target BS is switched to the master base station shape by the auxiliary base station state
State；
The current state is switched to the auxiliary base station state by the master base station state.
In possible embodiment, the setup module is specifically used for:
Determine it is described measurement reporting message in include at least one candidate BS at least one information when, from it is described to
Target BS is determined in a few candidate BS；
Set the state of the target BS to the auxiliary base station state of the terminal device.
Fifth aspect present invention provides a kind of base station, comprising:
Setup module, the prothetic group station addition instruction information for being sent according to the source base station received, by the base station
Current state is set as the auxiliary base station state of terminal device；Wherein, the state of the source base station is the main base of the terminal device
It stands state；
First switching module, for when receiving the switching request message sent by the source base station, into will be described
Current state is switched to the preparation state of master base station state by the auxiliary base station state；
First sending module, after reconfiguring completion message for what is sent in reception by the terminal device, the source Xiang Suoshu
Base station, which is sent, switches successfully instruction information, so that the source base station is based on the handover success and indicates information, by the source base station
State the auxiliary base station state is switched to by the master base station state；
Second switching module, for the current state to be switched to the master base station state by the auxiliary base station state,
So that the terminal device be able to use from different contextual information before switching respectively with the base station and the source base station
Carry out data interaction, finishing service switching.
In possible embodiment, the base station further include:
Module is established, for establishing separation carrying.
In possible embodiment, the base station further include:
Second sending module, for sending switching request acknowledgement message to the source base station, so that the source base station is based on
The switching request acknowledgement message controls the terminal device and cuts the state of the source base station stored in the terminal device
It is changed to the auxiliary base station state and the state of the base station stored in the terminal device is switched to the master base station shape
State.
In possible embodiment, the base station further include:
Third sending module is used for mobility management entity transmitting path indication message, so that the mobility
The downstream data paths of the terminal device are switched to the base station by the source base station by management entity；
First receiving module, for receiving the path switch acknowledgment message sent by the mobility management entity.
In possible embodiment, second switching module is specifically used for:
Reception is sent end that is data cached, and being used to indicate the data cached transmission end by the source base station
Label；Wherein, it when the data cached state for the source base station is the master base station state, is not issued to the terminal and sets
Standby data；
It is marked based on the path switch acknowledgment message and the end, by the current state by the prothetic group station
State is switched to the master base station state.
Sixth aspect present invention provides a kind of terminal device, comprising:
Setup module, for before receiving the indication message sent by the source base station, the terminal to be set
The standby target BS to be switched is set as the auxiliary base station state of the terminal device；Wherein, the current state of the source base station is
The master base station state of the terminal device, the target BS are in the measurement that the source base station is sent according to the terminal device
The base station for reporting message to determine；
Switching module, the source for will be stored in the terminal device when receiving the indication message
The state of base station is switched to the auxiliary base station state and by the state of the target BS stored in the terminal device by institute
It states auxiliary base station state and is switched to the master base station state, complete reconfiguration course；
Sending module completes message for reconfiguring to target BS transmission, so that the target BS will be described
The state of target BS is switched to the master base station state by the auxiliary base station state, and makes described in the target BS notice
The state of the source base station is switched to the auxiliary base station state by the master base station state, so that the terminal is set by source base station
Data friendship is carried out with the target BS and the source base station respectively for the contextual information different from before switching is able to use
Mutually, finishing service switches.
In possible embodiment, the terminal device further include:
Module is established, for establishing separation carrying.
Seventh aspect present invention provides a kind of base station, including processor, memory and transceiver, wherein transceiver is being located
It manages and sends and receivees data under the control of device, preset program is preserved in memory, processor reads the program in memory,
Following procedure is executed according to the program:
Determine that the terminal device needs to carry out business and cuts in the measurement reporting message that processor is sent according to terminal device
Before alternatively, it sets the state for the target BS that the terminal device to be switched to the auxiliary base station state of the terminal device；Its
In, the current state of the base station is the master base station state of the terminal device, and the target BS is the base station according to institute
State the base station that measurement reporting message determines；
The terminal is determined according to the measurement reporting message of transceiver sent by terminal device in the processor
When equipment needs to carry out service switching, controls the terminal device and cut the state of the base station stored in the terminal device
It is changed to the auxiliary base station state and by the state of the target BS stored in the terminal device by the auxiliary base station state
It is switched to the master base station state, and the control target BS enters the target BS state by prothetic group station shape
State is switched to the preparation state of the master base station state；
When indicating information by transceiver to the handover success sent by the target BS, the processor is then
The current state is switched to the auxiliary base station state, and the control target BS by described by the master base station state
Auxiliary base station state is switched to the master base station state, so that the terminal device is able to use the context different from before switching
Information carries out data interaction, finishing service switching with the target BS and the base station respectively.
Eighth aspect present invention provides a kind of base station, including processor, memory and transceiver, wherein transceiver is being located
It manages and sends and receivees data under the control of device, preset program is preserved in memory, processor reads the program in memory,
Following procedure is executed according to the program:
The prothetic group station addition instruction information that processor is sent according to the source base station that transceiver arrives, by working as the base station
Preceding state is set as the auxiliary base station state of terminal device；Wherein, the state of the source base station is the master base station of the terminal device
State；
In the processor by the transceiver to the switching request message sent by the source base station when, enter
The current state is switched to the preparation state of master base station state by the auxiliary base station state；
Message is completed by reconfiguring of sending of the terminal device by transceiver in the processor, the processing
Device is sent to the source base station by the transceiver and switches successfully instruction information, so that the source base station is based on described switch to
Function indicates information, and the state of the source base station is switched to the auxiliary base station state by the master base station state；
The current state is switched to the master base station state by the auxiliary base station state by the processor, so that described
Terminal device is able to use the contextual information different from before switching and carries out data with the base station and the source base station respectively
Interaction, finishing service switching.
Ninth aspect present invention provides a kind of terminal device, including processor, memory and transceiver, wherein transceiver
Data are sended and received under the control of a processor, preset program is preserved in memory, and processor is read in memory
Program executes following procedure according to the program:
Before processor is by transceiver to the indication message sent by the source base station, by the terminal
The equipment target BS to be switched is set as the auxiliary base station state of the terminal device；Wherein, the current state of the source base station
For the master base station state of the terminal device, the target BS is the measurement that the source base station is sent according to the terminal device
The base station that reporting message determines；
In the processor by the transceiver to the indication message when, will be deposited in the terminal device
The target BS that the state of the source base station of storage is switched to the auxiliary base station state and will store in the terminal device
State the master base station state is switched to by the auxiliary base station state, complete reconfiguration course；
The processor is reconfigured to target BS transmission by the transceiver and completes message, so that the target
The state of the target BS is switched to the master base station state by the auxiliary base station state by base station, and makes the target base
Station notifies the source base station, and the state of the source base station is switched to the auxiliary base station state by the master base station state, so that
The terminal device be able to use from different contextual information before switching respectively with the target BS and the source base station
Carry out data interaction, finishing service switching.
Technical solution in the embodiment of the present invention has the following beneficial effects:
In technical solution provided in an embodiment of the present invention, since target BS is just added to by terminal device before the handover
Prothetic group station in dual link, and during addition target BS is added to the prothetic group station in dual link, terminal device is
Uplink synchronous has been carried out with Target cell, so no longer needing random access procedure in subsequent switching flow, need to only change source
The state of base station and target BS, so as to avoid there is the technical issues of interruption of service surface caused by random access procedure,
Reduce propagation delay time.
Detailed description of the invention
Fig. 1 is the handoff procedure flow chart of LTE system in the prior art；
Fig. 2 is the schematic diagram of service surface terminal existing for the handoff procedure of LTE system in the prior art；
Fig. 3 is the control plane connection schematic diagram of the UE under dual link mode；
Fig. 4 is a kind of schematic diagram of the application scenarios provided of the embodiment of the present application；
Fig. 5 is a kind of flow chart of the business switch method based on dual link framework provided by the embodiments of the present application；
Fig. 6 is a kind of the first structural schematic diagram of base station provided by the embodiments of the present application；
Fig. 7 is a kind of second of structural schematic diagram of base station provided by the embodiments of the present application；
Fig. 8 is a kind of structural schematic diagram of terminal device provided by the embodiments of the present application；
Fig. 9 is a kind of the third structural schematic diagram of base station provided by the embodiments of the present application；
Figure 10 is a kind of 4th kind of structural schematic diagram of base station provided by the embodiments of the present application；
Figure 11 is a kind of another structural schematic diagram of terminal device provided by the embodiments of the present application.
Specific embodiment
The present invention provides a kind of business switch method based on dual link framework, terminal and base station, to solve existing skill
Handoff procedure in art there is technical issues that service surface.
In order to solve the above-mentioned technical problem, general thought of the present invention is as follows:
Source base station determines that the terminal device needs to carry out business and cuts in the measurement reporting message sent according to terminal device
Before alternatively, it sets the state for the target BS that the terminal device to be switched to the auxiliary base station state of the terminal device；Its
In, the current state of the source base station is the master base station state of the terminal device, and the target BS is the source base station root
The base station determined according to the measurement reporting message；
The source base station determines that the terminal device needs to carry out industry in the measurement reporting message sent according to terminal device
When business switching, the terminal device is controlled by the state of the source base station stored in the terminal device and is switched to the prothetic group
State of standing and the state of the target BS stored in the terminal device is switched to the master by the auxiliary base station state
Base station state, and the control target BS enter the target BS state be switched to by the auxiliary base station state it is described
The preparation state of master base station state；
It, then will be described current when the source base station, which is received, indicates information by the handover success that the target BS is sent
State is switched to the auxiliary base station state, and the control target BS by the auxiliary base station state by the master base station state
Be switched to the master base station state so that the terminal device be able to use from different contextual information before switching respectively with
The target BS and the source base station carry out data interaction, finishing service switching.
In technical solution provided in an embodiment of the present invention, since target BS is just added to by terminal device before the handover
Prothetic group station in dual link, and during addition target BS is added to the prothetic group station in dual link, terminal device is
Uplink synchronous has been carried out with Target cell, so no longer needing random access procedure in subsequent switching flow, need to only change source
The state of base station and target BS, so as to avoid there is the technical issues of interruption of service surface caused by random access procedure,
Reduce propagation delay time.
In order to be better understood by above-mentioned technical proposal, below by attached drawing and specific embodiment to technical solution of the present invention
It is described in detail, it should be understood that the specific features in the embodiment of the present invention and embodiment are to technical solution of the present invention
Detailed description, rather than the restriction to technical solution of the present invention, in the absence of conflict, the embodiment of the present invention and implementation
Technical characteristic in example can be combined with each other.
Firstly, the dual link framework to LTE system is introduced:
Dual link framework concentrates the radio resource of two cells or base station exactly as its name suggests to provide service for UE,
That is UE is connect with two school districts or base station.In LTE system, UE under dual link framework, only in MeNB (Master
ENB, master base station) with MME (Mobility Management Entity, mobility management entity) between there are a S1-MME
Connection.The base station for providing S1-MME connection is referred to as MeNB), another base station is for providing additional resource, referred to as SeNB
(Secondary eNB, prothetic group station).
Under the dual link framework of LTE, each base station can manage the radio resource in UE and respective cell independently.
Resource coordination work between MeNB and SeNB is transmitted via the signaling message on X2 interface.For under dual link mode in Fig. 3
UE control plane connection schematic diagram, wherein S1-MME terminates in MeNB, interconnects between MeNB and SeNB via X2-C.
Under the dual link framework of LTE, data surface radio bearer can be by MeNB SeNB stand-alone service, can also be by
MeNB and SeNB are serviced simultaneously.Referred to as MCG (the serving cell group of MeNB control) carrying, is only taken by SeNB when only being serviced by MeNB
Referred to as SCG (the serving cell group of SeNB control) carrying when business, while by referred to as Split Bearer when MeNB and SeNB service
(separation carrying).
Next, a kind of application scenarios to the embodiment of the present application are introduced, Fig. 4 is please referred to.
In Fig. 4, UE, via A point and B point, is moved in the Target cell of target BS by the cell of source base station.Wherein,
UE meeting real-time report in moving process measures reporting message, and when UE reaches A point, UE is still in the overlay area of source base station at this time
Interior, but start to measure the signal of target BS, i.e. the signal strength of the signal for the target BS that UE is measured in A point reaches
Certain threshold value (threshold value is configured by source base station), at this point, UE will include target base in the measurement reporting message that A point reports
The signal stood.When UE reaches B point, at this point, the signal strength of the signal of source base station is in the measurement reporting message that UE is reported
Lower than predetermined threshold value (threshold value is configured by source base station), i.e. UE will be moved into outside the overlay area of source base station, at this point, eventually
The measurement reporting message that end equipment reports is handover measurement reporting message, and source base station then judges UE according to handover measurement reporting message
It needs to switch.
Technical solution provided by the embodiments of the present application is introduced with reference to the accompanying drawing, during following introduction, incite somebody to action this
For the technical solution that invention provides is applied in application scenarios shown in Fig. 4.
By taking application scenarios shown in Fig. 4 as an example, referring to FIG. 5, being based on dual link frame for one kind that application embodiment provides
The process of the business switch method of structure, this method is described as follows.
S501: the measurement reporting message that terminal device is sent in real time to source base station.
UE need to send measurement reporting message to source base station according to default rule in moving process.The measurement, which reports, to disappear
The signal strength of the signal for the source base station that UE is received, the PCI (Physical of each cell detected are included at least in breath
Cell Identifier, i.e. Physical Cell Identifier) etc..
S502: source base station is in the measurement reporting message sent according to terminal device, the mesh that the terminal device to be switched
The state of mark base station is set as the auxiliary base station state of the terminal device.
When source base station determines at least one information measured in reporting message including at least one candidate BS that UE is sent
When, determine then target BS sets the end for the state of the target BS from least one described candidate BS
The auxiliary base station state of end equipment.At this point, the state of source base station is the master base station state of the terminal device.
Specifically, when source base station determines that UE detects at least one for the first time by the measurement reporting message of UE real-time report
The signal of a candidate BS, for example, the signal of candidate BS 1, candidate BS 2 is contained in the measurement reporting message of UE, at this point,
Source base station determines that UE is moved to A point, then according to preset strategy, determines target BS from candidate BS 1 and candidate BS 2.
The preset strategy can be comparison signal intensity, and the maximum base station of signal strength in multiple candidate BS is determined as target base
It stands, for example, the signal strength of candidate BS 1 is greater than the signal strength of candidate BS 2, then source base station determines that candidate BS 1 is UE
Target BS.Certainly, preset strategy can be configured according to actual use demand, herein not to the specific interior of preset strategy
Appearance is restricted.
When source base station is after UE is in A point and determines the target BS of UE, target BS is then added to UE's by source base station
The SeNB of dual link, treatment process can add process with reference to the SeNB in existing LTE standard, and details are not described herein.Meanwhile
Source base station determines the Target cell of UE in multiple cells that target BS is covered, using Target cell as the dual link of UE
SCG (Secondary Cell Group, secondary cell group) PScell (Primary Secondary Cell, it is main time small
Area).At this point, MeNB of the source base station as the dual link of UE, source cell is PCell (Primary Cell, main plot).
Correspondingly, target BS is then added according to the SeNB sent by source base station in the adding procedure of SeNB, received
It indicates information, sets the current state of itself to the auxiliary base station state of terminal device.
Meanwhile source base station establishes Split Bearer, that is, the attribute of the corresponding original carrying of source base station is modified to point
From carrying, so that a carrying be made both can also to pass through SeNB and UE by the link transmission of eating dishes without rice or wine between MeNB and UE
Between link transmission of eating dishes without rice or wine.Meanwhile the original carrying attribute of UE is had modified, original carrying attribute is become into separation carrying.In this way,
UE can carry out the transmission of uplink/downlink data with source base station or target BS simultaneously.
S503: it when source base station receives the handover measurement reporting message of terminal device transmission, sends and switches to target BS
Request message.
The measurement reporting message that source base station is reported according to UE, judges whether UE needs to switch over.Such as, if it detects
Handover measurement reporting message, or when source base station is judged in measurement reporting message that UE is reported, the signal of the signal of source base station
Already below one preset threshold of intensity, the preset threshold are determined by source base station, at this point, source base station then determines that UE needs are switched to
Target BS, i.e. UE reach the point of the B in Fig. 3.Certainly, source base station can also determine by other means whether UE needs to switch,
This is not restricted.
It in embodiments of the present invention, include first state switching command in switching request message, the first state switching
Instruction is used to indicate target BS and enters the preparation state that the state of itself is switched to master base station state by auxiliary base station state.
Specifically, source cell sends switching request message to Target cell, in the switching request message by source base station
Carry the relevant information of newly-increased indication field and the carrying switched over, the newly-increased indication field for notify target BS into
Enter the preparation state of the role exchange of MeNB and SeNB.
After target BS receives the switching request sent by source base station source cell, it is determined whether allow this time to cut
It changes, such as, it can be determined that whether the load of Target cell reaches preset maximum value etc., if meeting switching condition, ratifies
This time switching request, and enter the preparation state by the current state of target BS by SeNB role switching for MeNB role.
S504: target BS sends switching request acknowledgement message to source base station.
After target BS enters above-mentioned preparation state, Target cell is then carried out switching and is prepared, and is sent out by target BS
Send Handover Request Acknowledge message to source cell.
S505: source base station sends indication message to terminal device.
It in embodiments of the present invention, include the second status switching instruction, second state in the indication message
Switching command be used to indicate the terminal device state of the source base station stored in the terminal device is switched to it is described
Auxiliary base station state and the state of the target BS stored in the terminal device is switched to the master base station state.
Specifically, source cell receives the Handover Request Acknowledge message sent by Target cell
Afterwards, then indication message, i.e. RRC Connection Rebconfiguration message are sent to UE by source base station, and
Newly-increased indication field is carried in this message, the newly-increased indication field is for notifying that UE is mutual by MeNB and SeNB progress role
It changes, that is, source base station in UE is switched to SeNB by MeNB, target BS is switched to MeNB by SeNB, while by Target cell
It is switched to PCell, source cell is switched to PSCell.The position of the newly-increased indication field and form can be according to actual use situations
It is configured, this is not restricted.
Since Target cell has been configured as PSCell before switching, the switching life that source base station is sent to UE
The wireless resource configuration carried in order can greatly reduce.
Meanwhile source base station will be not issued to the data buffer storage of UE.
S506: terminal device executes indication message.
In embodiments of the present invention, when terminal device is when receiving the indication message, by the terminal device
The target that the state of the source base station of middle storage is switched to the auxiliary base station state and will store in the terminal device
The state of base station is switched to the master base station state by the auxiliary base station state.
Specifically, UE does not need that the indication message can be immediately performed to source cell transmission HARQ/ARQ response.
S507: terminal device sends confirmation message to target BS.
When UE executes the switching command, and by the role exchange of source base station and target BS, and by source cell and target
After the role exchange of cell, then UE sends switch acknowledgment message to Target cell, i.e., sends RRC to Target cell
Connection Reconfiguration Complete message starts simultaneously at and uses new safe context and Target cell
Carry out data transmission.At this point, target BS becomes the MeNB of UE, source base station becomes the SeNB of UE, and Target cell is as UE's
PCell, source cell become the PSCell of UE.
S508: target BS sends switching to mobility management entity transmitting path indication message and to source base station
Success indicates information.
After Target cell receives the RRC Connection Reconfiguration Complete message of UE transmission,
It then notifies MME to carry out path integration, while increasing the handover success instruction message sent to source base station newly in X2 interface, with
Source cell is notified to switch successfully.The position of the handover success instruction message and form can be set according to actual use situation
It sets, this is not restricted.
S509: source base station completes switching.
When source base station, which is received, indicates information by the handover success that target BS is sent, then by the caching number of terminal device
According to being sent to the target BS.For example, sending SN Status Transfer message to Target cell, and by data cached turn
To Target cell.After data cached sent, then source base station is used to indicate data cached transmission to target BS transmission and terminates
End label after, i.e., after having sent End Marker message to Target cell, self-role is changed into SeNB by source base station, together
When by the diversification in role of source cell be PSCell, and discharge resource.
S510: target BS completes switching.
After MME completes path integration, then Path Switch Ack message is sent to target BS.Target BS is being received
It, will after the End Marker message sent to the MME Path Switch Ack message sent back to and source cell by source base station
Self-role is changed into MeNB, while being PCell by the diversification in role of Target cell, and using new safe context and UE into
Row uplink and downlink communication completes the service switching of UE.
In the technical solution of the application, due to the addition SeNB of UE before the handover during with Target cell into
Uplink synchronous of having gone has avoided random access procedure and has led so no longer needing random access procedure in subsequent switching flow
The service surface of cause is interrupted.Further, UE is before sending RRC Connection Reconfiguration Complete message
It can be communicated simultaneously with source station (MeNB), Target Station (SeNB), send RRC Connection Reconfiguration
Also new safe context and source station (SeNB) and Target Station (MeNB) can be used after Complete message while communicating, just
In realizing that data packet simultaneous transmission or the optimal transmission path of selection in both links have to obtain certain diversity gain
Conducive to the reliability for switching front and back business transmission is improved, propagation delay time is reduced.
Second aspect of the embodiment of the present invention provides a kind of base station, and the base station can be the channel radios such as LTE system, NR system
Base station such as macro base station, Home eNodeB in letter system etc. can also be other base stations.It please refers to shown in Fig. 6, it is real for the present invention
A kind of structural schematic diagram of base station of example offer is applied, the base station includes:
Setup module 601, for determining the terminal device needs in the measurement reporting message sent according to terminal device
Before carrying out service switching, it sets the state for the target BS that the terminal device to be switched to the prothetic group of the terminal device
It stands state；Wherein, the current state of the base station is the master base station state of the terminal device, and the target BS is the base
It stands according to the base station for measuring reporting message and determining；
Control module 602, for determining the terminal device needs in the measurement reporting message sent according to terminal device
When carrying out service switching, control the terminal device state of the base station stored in the terminal device is switched to it is described
Auxiliary base station state and the state of the target BS stored in the terminal device is switched to institute by the auxiliary base station state
State master base station state, and the control target BS enters and is switched to the target BS state by the auxiliary base station state
The preparation state of the master base station state；
Switching module 603, for when receiving the handover success sent by the target BS and indicating information, then by institute
It states current state and the auxiliary base station state is switched to by the master base station state, and the control target BS is by described auxiliary
Base station state is switched to the master base station state, so that the terminal device is able to use the context different from before switching and believes
Breath carries out data interaction, finishing service switching with the target BS and the base station respectively.
Due to second aspect of the embodiment of the present invention provide base station be with first aspect present invention provide based on doubly-linked
Connect and proposed under the same idea of the business switch method of framework, thus in 5 embodiment of earlier figures based on dual link framework
The various change mode of the treatment process of source base station and specific embodiment are equally applicable to the present embodiment in business switch method
Base station, by the aforementioned detailed description to the business switch method based on dual link framework, those skilled in the art can understand
The implementation process for knowing base station in the present embodiment, so this will not be detailed here in order to illustrate the succinct of book.
The third aspect of the embodiment of the present invention provides a kind of base station, and the base station can be the channel radios such as LTE system, NR system
Base station such as macro base station, Home eNodeB in letter system etc. can also be other base stations.It please refers to shown in Fig. 7, it is real for the present invention
A kind of structural schematic diagram of base station of example offer is applied, the base station includes:
Setup module 701, the prothetic group station addition instruction information for being sent according to the source base station received, by the base station
Current state be set as the auxiliary base station state of terminal device；Wherein, the state of the source base station is the master of the terminal device
Base station state；
First switching module 702, for when receiving the switching request message sent by the source base station, by institute
State the preparation state that current state is switched to master base station state by the auxiliary base station state；
First sending module 703, after reconfiguring completion message for what is sent in reception by the terminal device, Xiang Suoshu
Source base station, which is sent, switches successfully instruction information, so that the source base station is based on the handover success and indicates information, by the source base
The state stood is switched to the auxiliary base station state by the master base station state；
Second switching module 704, for the current state to be switched to the master base station shape by the auxiliary base station state
State so that the terminal device be able to use from different contextual information before switching respectively with the base station and the source base
It stands and carries out data interaction, finishing service switching.
Due to the third aspect of the embodiment of the present invention provide base station be with first aspect present invention provide based on doubly-linked
Connect and proposed under the same idea of the business switch method of framework, thus in 5 embodiment of earlier figures based on dual link framework
The various change mode of the treatment process of target BS and specific embodiment are equally applicable to the present embodiment in business switch method
Base station, by the aforementioned detailed description to the business switch method based on dual link framework, those skilled in the art can be clear
The implementation process for knowing base station in the present embodiment of Chu, so this will not be detailed here in order to illustrate the succinct of book.
Fourth aspect present invention provides a kind of terminal device, and it is wireless that the terminal device can be LTE system, NR system etc.
Terminal device in communication system, such as mobile phone, tablet computer etc..It please refers to shown in Fig. 8, is provided in an embodiment of the present invention one
The structural schematic diagram of kind terminal device, the terminal device include:
Setup module 801, for before receiving the indication message sent by the source base station, by the terminal
The equipment target BS to be switched is set as the auxiliary base station state of the terminal device；Wherein, the current state of the source base station
For the master base station state of the terminal device, the target BS is the measurement that the source base station is sent according to the terminal device
The base station that reporting message determines；
Switching module 802, for when receiving the indication message, described in being stored in the terminal device
The state of source base station be switched to the auxiliary base station state and by the state of the target BS stored in the terminal device by
The auxiliary base station state is switched to the master base station state, completes reconfiguration course；
Sending module 803, for reconfiguring to target BS transmission and completing message, so that the target BS is by institute
The state for stating target BS is switched to the master base station state by the auxiliary base station state, and makes target BS notice institute
Source base station is stated, the state of the source base station is switched to the auxiliary base station state by the master base station state, so that the terminal
Equipment is able to use the contextual information different from before switching and carries out data with the target BS and the source base station respectively
Interaction, finishing service switching.
Due to fourth aspect present invention provide terminal device be with first aspect present invention provide based on dual link
It is proposed under the same idea of the business switch method of framework, therefore the industry based on dual link framework in 5 embodiment of earlier figures
The various change mode of the treatment process of terminal device and specific embodiment are equally applicable to the present embodiment in business switching method
Terminal device, by the aforementioned detailed description to the business switch method based on dual link framework, those skilled in the art can be with
It is apparent from the implementation process of terminal device in the present embodiment, so this will not be detailed here in order to illustrate the succinct of book.
Fifth aspect present invention provides a kind of base station, and the base station can be the wireless communication systems such as LTE system, NR system
In base station, such as base station (such as macro base station, Home eNodeB etc.) is also possible to RN (relaying) equipment, can also be other bases
It stands.It please refers to shown in Fig. 9, is the structure chart of base station provided in an embodiment of the present invention.As shown in figure 9, the base station includes: processing
Device 901, memory 902 and transceiver 903, wherein transceiver 903 sends and receivees data under the control of processor 901, deposits
Preset program is preserved in reservoir 902, processor 901 reads the program in memory 902, executes following mistake according to the program
Journey:
Determine that the terminal device needs to carry out business according to the measurement reporting message that terminal device is sent in processor 901
Before switching, it sets the state for the target BS that the terminal device to be switched to the auxiliary base station state of the terminal device；
Wherein, the current state of the base station be the terminal device master base station state, the target BS be the base station according to
The base station that the measurement reporting message determines；
Institute is determined according to the received measurement reporting message sent by terminal device of transceiver 903 in the processor 901
When stating terminal device and needing to carry out service switching, the terminal device is controlled by the base station stored in the terminal device
State is switched to the auxiliary base station state and by the state of the target BS stored in the terminal device by the prothetic group
The state of station is switched to the master base station state, and the control target BS enters the target BS state by described auxiliary
Base station state is switched to the preparation state of the master base station state；
When receiving the handover success instruction information sent by the target BS by transceiver 903, the processing
The current state is then switched to the auxiliary base station state, and the control target base by the master base station state by device 901
Stand and the master base station state be switched to by the auxiliary base station state so that the terminal device be able to use from switching before it is different
Contextual information data interaction, finishing service switching are carried out with the target BS and the base station respectively.
Optionally, processor 901 specifically can be central processing unit, application-specific integrated circuit (English:
Application Specific Integrated Circuit, referred to as: ASIC), it can be one or more for controlling journey
The integrated circuit that sequence executes can be use site programmable gate array (English: Field Programmable Gate
Array, referred to as: FPGA) exploitation hardware circuit, can be baseband processor.
Optionally, processor 901 may include at least one processing core.
Optionally, memory 902 may include read-only memory (English: Read Only Memory, referred to as: ROM), with
Machine accesses memory (English: Random Access Memory, abbreviation: RAM) and magnetic disk storage.Memory is at storage
Manage data required when device 901 is run.The quantity of memory is one or more.
Due to the base station that the aspect of the embodiment of the present invention the 5th provides be with first aspect present invention provide based on doubly-linked
Connect and proposed under the same idea of the business switch method of framework, thus in 5 embodiment of earlier figures based on dual link framework
The various change mode of the treatment process of source base station and specific embodiment are equally applicable to the present embodiment in business switch method
Base station, by the aforementioned detailed description to the business switch method based on dual link framework, those skilled in the art can understand
The implementation process for knowing base station in the present embodiment, so this will not be detailed here in order to illustrate the succinct of book.
Sixth aspect present invention provides a kind of base station, and the base station can be the wireless communication systems such as LTE system, NR system
In base station, such as base station (such as macro base station, Home eNodeB etc.) is also possible to RN (relaying) equipment, can also be other bases
It stands.It please refers to shown in Figure 10, is the structure chart of base station provided in an embodiment of the present invention.As shown in Figure 10, the base station includes: place
Manage device 1001, memory 1002 and transceiver 1003, wherein transceiver 1003 sends and receivees under the control of processor 1001
Data preserve preset program in memory 1002, and processor 1001 reads the program in memory 1002, according to the program
Execute following procedure:
The prothetic group station addition instruction information that processor 1001 is sent according to the source base station that transceiver 1003 receives, will be described
The current state of base station is set as the auxiliary base station state of terminal device；Wherein, the state of the source base station is the terminal device
Master base station state；
It is received in the processor 1001 by the transceiver 1003 and is disappeared by the switching request that the source base station is sent
When breath, into the preparation state that the current state is switched to master base station state by the auxiliary base station state；
It is received in the processor 1001 by transceiver 1003 and message is completed by reconfiguring of sending of the terminal device,
The processor 1001 is sent to the source base station by the transceiver and switches successfully instruction information, so that the source base station base
Information is indicated in the handover success, and the state of the source base station is switched to prothetic group station shape by the master base station state
State；
The current state is switched to the master base station state by the auxiliary base station state by the processor 1001, so that
The terminal device is able to use the contextual information different from before switching and carries out respectively with the base station and the source base station
Data interaction, finishing service switching.
Optionally, processor 1001 specifically can be central processing unit, application-specific integrated circuit (English:
Application Specific Integrated Circuit, referred to as: ASIC), it can be one or more for controlling journey
The integrated circuit that sequence executes can be use site programmable gate array (English: Field Programmable Gate
Array, referred to as: FPGA) exploitation hardware circuit, can be baseband processor.
Optionally, processor 1001 may include at least one processing core.
Optionally, memory 1002 may include read-only memory (English: Read Only Memory, referred to as: ROM),
Random access memory (English: Random Access Memory, referred to as: RAM) and magnetic disk storage.Memory 1002 is used for
The data required when running of storage processor 1001.The quantity of memory is one or more.
Due to the base station that the aspect of the embodiment of the present invention the 6th provides be with first aspect present invention provide based on doubly-linked
Connect and proposed under the same idea of the business switch method of framework, thus in 5 embodiment of earlier figures based on dual link framework
The various change mode of the treatment process of target BS and specific embodiment are equally applicable to the present embodiment in business switch method
Base station, by the aforementioned detailed description to the business switch method based on dual link framework, those skilled in the art can be clear
The implementation process for knowing base station in the present embodiment of Chu, so this will not be detailed here in order to illustrate the succinct of book.
Seventh aspect present invention provides a kind of terminal device, and it is wireless that the terminal device can be LTE system, NR system etc.
Terminal device in communication system, such as mobile phone, tablet computer etc..It please refers to shown in Figure 11, is provided in an embodiment of the present invention
A kind of structural schematic diagram of terminal device, the terminal device include: processor 1101, memory 1102 and transceiver 1103,
Wherein, transceiver 1103 sends and receivees data under the control of processor 1101, and preset journey is preserved in memory 1102
Sequence, processor 1101 read the program in memory 1102, execute following procedure according to the program:
It, will before processor 1101 receives the indication message sent by the source base station by transceiver 1103
The terminal device target BS to be switched is set as the auxiliary base station state of the terminal device；Wherein, the source base station
Current state is the master base station state of the terminal device, and the target BS is that the source base station is sent out according to the terminal device
The base station that the measurement reporting message sent determines；
When the processor 1101 receives the indication message by the transceiver 1103, by the terminal
The state of the source base station stored in equipment is switched to the auxiliary base station state and described in storing in the terminal device
The state of target BS is switched to the master base station state by the auxiliary base station state, completes reconfiguration course；
The processor 1101 is reconfigured to target BS transmission by the transceiver and completes message, so that described
The state of the target BS is switched to the master base station state by the auxiliary base station state by target BS, and makes the mesh
Mark base station notifies the source base station, and the state of the source base station is switched to the auxiliary base station state by the master base station state,
So that the terminal device be able to use from different contextual information before switching respectively with the target BS and the source
Base station carries out data interaction, finishing service switching.
Optionally, processor 1101 specifically can be central processing unit, application-specific integrated circuit (English:
Application Specific Integrated Circuit, referred to as: ASIC), it can be one or more for controlling journey
The integrated circuit that sequence executes can be use site programmable gate array (English: Field Programmable Gate
Array, referred to as: FPGA) exploitation hardware circuit, can be baseband processor.
Optionally, processor 1101 may include at least one processing core.
Optionally, memory 1102 may include read-only memory (English: Read Only Memory, referred to as: ROM),
Random access memory (English: Random Access Memory, referred to as: RAM) and magnetic disk storage.Memory 1102 is used for
The data required when running of storage processor 1101.The quantity of memory is one or more.
Due to seventh aspect present invention provide terminal device be with first aspect present invention provide based on dual link
It is proposed under the same idea of the business switch method of framework, therefore the industry based on dual link framework in 5 embodiment of earlier figures
The various change mode of the treatment process of terminal device and specific embodiment are equally applicable to the present embodiment in business switching method
Terminal device, by the aforementioned detailed description to the business switch method based on dual link framework, those skilled in the art can be with
It is apparent from the implementation process of terminal device in the present embodiment, so this will not be detailed here in order to illustrate the succinct of book.
It should be understood by those skilled in the art that, the embodiment of the present invention 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 present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, 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 present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
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, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (24)
1. a kind of business switch method based on dual link framework, which is characterized in that the described method includes:
Source base station the measurement reporting message sent according to terminal device determine the terminal device need to carry out service switching it
Before, set the state for the target BS that the terminal device to be switched to the auxiliary base station state of the terminal device；Wherein, institute
The current state for stating source base station is the master base station state of the terminal device, and the target BS is the source base station according to
Measure the base station that reporting message determines；
The source base station determines that the terminal device needs to carry out business and cuts in the measurement reporting message sent according to terminal device
When changing, the terminal device is controlled by the state of the source base station stored in the terminal device and is switched to prothetic group station shape
State and the state of the target BS stored in the terminal device is switched to the master base station by the auxiliary base station state
State, and the control target BS enter the target BS state being switched to the main base by the auxiliary base station state
The preparation state for state of standing；
When the source base station, which is received, indicates information by the handover success that the target BS is sent, then by the current state
The auxiliary base station state is switched to by the master base station state, and the control target BS is switched by the auxiliary base station state
For the master base station state so that the terminal device be able to use the contextual information different from before switching respectively with it is described
Target BS and the source base station carry out data interaction, finishing service switching.
2. the method as described in claim 1, which is characterized in that in the target that the source base station to be switched the terminal device
The state of base station is set as after the auxiliary base station state of the terminal device, the method also includes:
The source base station establishes separation carrying.
3. method according to claim 1 or 2, which is characterized in that the source base station controls the terminal device for the end
The state of the target BS stored in end equipment is switched to the master base station state, and control by the auxiliary base station state
The target BS enters the preparation that the target BS state is switched to the master base station state by the auxiliary base station state
State, comprising:
When the source base station receives the handover measurement reporting message that the terminal device is sent, the transmission of Xiang Suoshu target BS is cut
Change request message；It wherein, include first state switching command in the switching request message, the first state switching command is used
The state of the target BS is switched to the master base station shape by the auxiliary base station state in indicating that the target BS enters
The preparation state of state；
When the source base station receives the switching request acknowledgement message sent by the target BS, Xiang Suoshu terminal device hair
Send indication message；It wherein, include the second status switching instruction in the indication message, the second state switching refers to
Order is used to indicate the terminal device and the state of the source base station stored in the terminal device is switched to the prothetic group station
State and the state of the target BS stored in the terminal device is switched to the master base station state.
4. method as claimed in claim 3, which is characterized in that described to be sent out when the source base station is received by the target BS
When the handover success instruction information sent, then the current state is switched to the auxiliary base station state by the master base station state,
And the control target BS is switched to the master base station state by the auxiliary base station state, comprising:
The data cached of the terminal device is sent to the target BS by the source base station；Wherein, described data cached to be
When the state of the source base station is the master base station state, it is not issued to the data of the terminal device；
The source base station is sent to the target BS is used to indicate the data cached end label for sending end, so that institute
It states target BS to mark based on the end, the state of the target BS is switched to the main base by the auxiliary base station state
It stands state；
The current state is switched to the auxiliary base station state by the master base station state by the source base station.
5. method as claimed in claim 4, which is characterized in that the source base station is reported in the measurement sent according to terminal device
Before message determines that the terminal device needs to carry out service switching, the state for the target BS that the terminal device to be switched
It is set as the auxiliary base station state of the terminal device, comprising:
When it includes at least one information of at least one candidate BS that the source base station, which determines in the measurement reporting message, from
Target BS is determined at least one described candidate BS；
Set the state of the target BS to the auxiliary base station state of the terminal device.
6. a kind of business switch method based on dual link framework, which is characterized in that the described method includes:
The prothetic group station addition instruction information that target BS is sent according to the source base station received, by the current shape of the target BS
State is set as the auxiliary base station state of terminal device；Wherein, the state of the source base station is the master base station state of the terminal device；
The target BS when receiving the switching request message sent by the source base station, by the current state by
The auxiliary base station state is switched to the preparation state of master base station state；
It is received after reconfiguring of being sent by the terminal device complete message in the target BS, the target BS is to described
Source base station, which is sent, switches successfully instruction information, so that the source base station is based on the handover success and indicates information, by the source base
The state stood is switched to the auxiliary base station state by the master base station state；
The current state is switched to the master base station state by the auxiliary base station state by the target BS, so that the end
End equipment is able to use the contextual information different from before switching and is counted respectively with the target BS and the source base station
According to interaction, finishing service switching.
7. method as claimed in claim 6, which is characterized in that sent out by the source base station in the target BS according to receiving
Send prothetic group station addition instruction information, by the current state of the target BS be set as terminal device auxiliary base station state it
Afterwards, the method also includes:
The target BS establishes separation carrying.
8. method according to claim 6 or 7, which is characterized in that the target BS enter by the current state by
The auxiliary base station state is switched to after the preparation state of master base station state, the method also includes:
The target BS sends switching request acknowledgement message to the source base station, so that the source base station is based on the switching and asks
Seek confirmation message, control the terminal device state of the source base station stored in the terminal device is switched to it is described auxiliary
Base station state and the state of the target BS stored in the terminal device is switched to the master base station state.
9. method according to claim 8, which is characterized in that enter the current state in the target BS by described
Auxiliary base station state is switched to after the preparation state of master base station state, the method also includes:
The target BS is to mobility management entity transmitting path indication message, so that the mobility management entity will
The downstream data paths of the terminal device are switched to the target BS by the source base station；
The target BS receives the path switch acknowledgment message sent by the mobility management entity.
10. method as claimed in claim 9, which is characterized in that the target BS is by the current state by the prothetic group
The state of station is switched to the master base station state, comprising:
Target BS reception is sent data cached by the source base station, and is used to indicate data cached transmissions and is tied
The end of beam marks；Wherein, when the data cached state for the source base station is the master base station state, it is not issued to institute
State the data of terminal device；
The target BS is based on the path switch acknowledgment message and the end marks, by the current state by institute
It states auxiliary base station state and is switched to the master base station state.
11. a kind of business switch method based on dual link framework, which is characterized in that the described method includes:
Terminal device to be switched the terminal device before receiving the indication message sent by the source base station
Target BS is set as the auxiliary base station state of the terminal device；Wherein, the current state of the source base station is that the terminal is set
Standby master base station state, the target BS are that the source base station is determined according to the measurement reporting message that the terminal device is sent
Base station；
The terminal device is when receiving the indication message, by the source base station stored in the terminal device
State is switched to the auxiliary base station state and by the state of the target BS stored in the terminal device by the prothetic group
The state of station is switched to the master base station state, completes reconfiguration course；
The terminal device reconfigures to target BS transmission and completes message, so that the target BS is by the target base
The state stood is switched to the master base station state by the auxiliary base station state, and the target BS is made to notify the source base
It stands, the state of the source base station is switched to the auxiliary base station state by the master base station state, so that the terminal device energy
It is enough to carry out data interaction with the target BS and the source base station respectively using the contextual information different from before switching, it is complete
At service switching.
12. method as claimed in claim 11, which is characterized in that in the target BS to be switched the terminal setting
After the auxiliary base station state of the terminal device, the method also includes:
The terminal device establishes separation carrying.
13. a kind of base station characterized by comprising
Setup module, for determining that the terminal device needs to carry out business in the measurement reporting message sent according to terminal device
Before switching, it sets the state for the target BS that the terminal device to be switched to the auxiliary base station state of the terminal device；
Wherein, the current state of the base station be the terminal device master base station state, the target BS be the base station according to
The base station that the measurement reporting message determines；
Control module, for determining that the terminal device needs to carry out business in the measurement reporting message sent according to terminal device
When switching, the terminal device is controlled by the state of the base station stored in the terminal device and is switched to prothetic group station shape
State and the state of the target BS stored in the terminal device is switched to the master base station by the auxiliary base station state
State, and the control target BS enter the target BS state being switched to the main base by the auxiliary base station state
The preparation state for state of standing；
Switching module, for when receiving the handover success sent by the target BS and indicating information, then will it is described currently
State is switched to the auxiliary base station state, and the control target BS by the auxiliary base station state by the master base station state
Be switched to the master base station state so that the terminal device be able to use from different contextual information before switching respectively with
The target BS and the base station carry out data interaction, finishing service switching.
14. base station as claimed in claim 13, which is characterized in that the base station further include:
Module is established, for establishing separation carrying.
15. base station according to claim 13 or 14, which is characterized in that the control module is specifically used for:
When receiving the handover measurement reporting message that the terminal device is sent, Xiang Suoshu target BS sends switching request and disappears
Breath；It wherein, include first state switching command in the switching request message, the first state switching command is used to indicate institute
It states target BS and enters the preparation that the state of the target BS is switched to the master base station state by the auxiliary base station state
State；
When receiving the switching request acknowledgement message sent by the target BS, Xiang Suoshu terminal device sends switching instruction
Information；It wherein, include the second status switching instruction in the indication message, second status switching instruction is used to indicate
The state of the base station stored in the terminal device is switched to the auxiliary base station state and by institute by the terminal device
The state for stating the target BS stored in terminal device is switched to the master base station state.
16. base station as claimed in claim 15, which is characterized in that the switching module is specifically used for:
Data cached by the terminal device is sent to the target BS；Wherein, described data cached for the base station
When state is the master base station state, it is not issued to the data of the terminal device；
It is sent to the target BS and is used to indicate the data cached end label for sending end, so that the target BS
It is marked based on the end, the state of the target BS is switched to the master base station state by the auxiliary base station state；
The current state is switched to the auxiliary base station state by the master base station state.
17. base station as claimed in claim 16, which is characterized in that the setup module is specifically used for:
When including at least one information of at least one candidate BS in determining the measurement reporting message, from described at least one
Target BS is determined in a candidate BS；
Set the state of the target BS to the auxiliary base station state of the terminal device.
18. a kind of base station, which is characterized in that the base station includes:
Setup module, the prothetic group station addition instruction information for being sent according to the source base station received, by the current of the base station
State is set as the auxiliary base station state of terminal device；Wherein, the state of the source base station is the master base station shape of the terminal device
State；
First switching module, for when receiving the switching request message sent by the source base station, into will be described current
State is switched to the preparation state of master base station state by the auxiliary base station state；
First sending module, after reconfiguring completion message for what is sent in reception by the terminal device, Xiang Suoshu source base station
It sends and switches successfully instruction information, so that the source base station is based on the handover success and indicates information, by the shape of the source base station
State is switched to the auxiliary base station state by the master base station state；
Second switching module, for the current state to be switched to the master base station state by the auxiliary base station state, so that
The terminal device is able to use the contextual information different from before switching and carries out respectively with the base station and the source base station
Data interaction, finishing service switching.
19. base station as claimed in claim 18, which is characterized in that the base station further include:
Module is established, for establishing separation carrying.
20. the base station as described in claim 18 or 19, which is characterized in that the base station further include:
Second sending module, for sending switching request acknowledgement message to the source base station, so that the source base station is based on described
Switching request acknowledgement message controls the terminal device and is switched to the state of the source base station stored in the terminal device
The auxiliary base station state and the state of the base station stored in the terminal device is switched to the master base station state.
21. base station as claimed in claim 20, which is characterized in that the base station further include:
Third sending module is used for mobility management entity transmitting path indication message, so that the mobile management
The downstream data paths of the terminal device are switched to the base station by the source base station by entity；
First receiving module, for receiving the path switch acknowledgment message sent by the mobility management entity.
22. base station as claimed in claim 21, which is characterized in that second switching module is specifically used for:
Reception is sent end mark that is data cached, and being used to indicate the data cached transmission end by the source base station
Note；Wherein, when the data cached state for the source base station is the master base station state, it is not issued to the terminal device
Data；
It is marked based on the path switch acknowledgment message and the end, by the current state by the auxiliary base station state
It is switched to the master base station state.
23. a kind of terminal device characterized by comprising
Setup module, for before receiving the indication message sent by the source base station, the terminal device to be wanted
The target BS of switching is set as the auxiliary base station state of the terminal device；Wherein, the current state of the source base station is described
The master base station state of terminal device, the target BS, which reports for the source base station according to the measurement that the terminal device is sent, to disappear
Cease determining base station；
Switching module, the source base station for will be stored in the terminal device when receiving the indication message
State be switched to the auxiliary base station state and by the state of the target BS stored in the terminal device by described auxiliary
Base station state is switched to the master base station state, completes reconfiguration course；
Sending module, for reconfiguring to target BS transmission and completing message, so that the target BS is by the target
The state of base station is switched to the master base station state by the auxiliary base station state, and the target BS is made to notify the source base
It stands, the state of the source base station is switched to the auxiliary base station state by the master base station state, so that the terminal device energy
It is enough to carry out data interaction with the target BS and the source base station respectively using the contextual information different from before switching, it is complete
At service switching.
24. terminal device as claimed in claim 23, which is characterized in that the terminal device further include:
Module is established, for establishing separation carrying.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429975A (en) * | 2019-09-05 | 2019-11-08 | 海能达通信股份有限公司 | Satellite switching method and device |
| WO2021043122A1 (en) * | 2019-09-04 | 2021-03-11 | 华为技术有限公司 | Communication method and apparatus, and computer readable storage medium |
| WO2021057885A1 (en) * | 2019-09-26 | 2021-04-01 | FG Innovation Company Limited | Method and apparatus for conditional pscell change |
| CN112788698A (en) * | 2020-12-23 | 2021-05-11 | 展讯半导体(成都)有限公司 | Data processing method and device and terminal equipment |
| CN114222336A (en) * | 2019-09-29 | 2022-03-22 | 展讯通信（上海）有限公司 | Cell condition updating method, user equipment and computer readable storage medium |
| CN115334606A (en) * | 2022-08-15 | 2022-11-11 | 武汉空巴通信技术有限公司 | A connection switching management system and method |
| WO2025086804A1 (en) * | 2023-10-27 | 2025-05-01 | 三维通信股份有限公司 | Cell handover method and device, storage medium and electronic device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104301955A (en) * | 2014-09-02 | 2015-01-21 | 中兴通讯股份有限公司 | Method for user equipment to switch base station, base station, and user equipment |
| CN104812008A (en) * | 2014-01-28 | 2015-07-29 | 北京三星通信技术研究有限公司 | Method for supporting UE (user equipment) shifting in small cell system |
| CN104919735A (en) * | 2013-01-16 | 2015-09-16 | Lg电子株式会社 | Method and device for sending an indication in a wireless communication system |
| CN105873133A (en) * | 2015-01-23 | 2016-08-17 | 北京三星通信技术研究有限公司 | Method capable of supporting service local shunting under dual-connection architecture and apparatus |
| CN105981440A (en) * | 2014-01-31 | 2016-09-28 | 富士通株式会社 | Radio communication method, radio communication system, base station, and radio station |
-
2017
- 2017-08-28 CN CN201710752595.XA patent/CN109429281B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104919735A (en) * | 2013-01-16 | 2015-09-16 | Lg电子株式会社 | Method and device for sending an indication in a wireless communication system |
| CN104812008A (en) * | 2014-01-28 | 2015-07-29 | 北京三星通信技术研究有限公司 | Method for supporting UE (user equipment) shifting in small cell system |
| US20160373975A1 (en) * | 2014-01-28 | 2016-12-22 | Samsung Electronics Co., Ltd. | Method and apparatus for ue mobility in a small cell system |
| CN105981440A (en) * | 2014-01-31 | 2016-09-28 | 富士通株式会社 | Radio communication method, radio communication system, base station, and radio station |
| CN104301955A (en) * | 2014-09-02 | 2015-01-21 | 中兴通讯股份有限公司 | Method for user equipment to switch base station, base station, and user equipment |
| CN105873133A (en) * | 2015-01-23 | 2016-08-17 | 北京三星通信技术研究有限公司 | Method capable of supporting service local shunting under dual-connection architecture and apparatus |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021043122A1 (en) * | 2019-09-04 | 2021-03-11 | 华为技术有限公司 | Communication method and apparatus, and computer readable storage medium |
| US12238511B2 (en) | 2019-09-04 | 2025-02-25 | Huawei Technologies Co., Ltd. | Communication method and apparatus, and computer-readable storage medium |
| CN110429975A (en) * | 2019-09-05 | 2019-11-08 | 海能达通信股份有限公司 | Satellite switching method and device |
| CN110429975B (en) * | 2019-09-05 | 2021-11-16 | 海能达通信股份有限公司 | Satellite switching method and device |
| WO2021057885A1 (en) * | 2019-09-26 | 2021-04-01 | FG Innovation Company Limited | Method and apparatus for conditional pscell change |
| US11582651B2 (en) | 2019-09-26 | 2023-02-14 | FG Innovation Company Limited | Method and apparatus for conditional PSCell change |
| CN114222336A (en) * | 2019-09-29 | 2022-03-22 | 展讯通信（上海）有限公司 | Cell condition updating method, user equipment and computer readable storage medium |
| CN114679754A (en) * | 2019-09-29 | 2022-06-28 | 展讯通信（上海）有限公司 | Cell condition updating method, user equipment and computer readable storage medium |
| CN112788698A (en) * | 2020-12-23 | 2021-05-11 | 展讯半导体(成都)有限公司 | Data processing method and device and terminal equipment |
| CN115334606A (en) * | 2022-08-15 | 2022-11-11 | 武汉空巴通信技术有限公司 | A connection switching management system and method |
| CN115334606B (en) * | 2022-08-15 | 2024-08-02 | 四川国创数字产业发展有限公司 | Connection switching management system and method |
| WO2025086804A1 (en) * | 2023-10-27 | 2025-05-01 | 三维通信股份有限公司 | Cell handover method and device, storage medium and electronic device |
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