CN110012513A - A kind of switching method, base station and computer readable storage medium - Google Patents
A kind of switching method, base station and computer readable storage medium Download PDFInfo
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- CN110012513A CN110012513A CN201810009341.3A CN201810009341A CN110012513A CN 110012513 A CN110012513 A CN 110012513A CN 201810009341 A CN201810009341 A CN 201810009341A CN 110012513 A CN110012513 A CN 110012513A
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- terminal
- base station
- candidate
- serving
- switch
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Classifications
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
Abstract
The embodiment of the invention provides a kind of switching method, base station and computer readable storage mediums.The embodiment of the present invention can be before terminal formally switches, the candidate base station of switching is allowed to carry out admission control processing in advance, the operation such as relevant access layer configuration is established for terminal, and serving BS can obtain the candidate base station for allowing to receive terminal, to in subsequent switching, serving BS can be from the above-mentioned candidate base station selection target base station for allowing to receive terminal, since target BS is the base station for allowing to receive terminal, and relevant configuration operation is carried out for the access of terminal in advance, therefore the embodiment of the present invention can guarantee effective control of the network to handoff procedure, and improve the success rate of switching.
Description
Technical field
The present invention relates to mobile communication technology fields, and in particular to a kind of switching method, base station and computer-readable storage
Medium.
Background technique
It can be communicated wirelessly between unmanned plane and base station.By emulation find, when unmanned plane close to
When ground, received peak signal is usually from nearest base station.As shown in Figure 1, and upper with the height of unmanned plane
It rises, cell starts to divide, and peak signal may be from farther away cell.The reason of generating the situation is that the antenna of base station is logical
Often have a down dip.On the ground, antenna main lobe covers all terminals (including the unmanned plane on ground)；And when unmanned plane increases
When, main lobe signal strength reduces, and the side-lobe signal intensity of adjacent base station increases, it is possible to be more than main lobe signal strength.
By some field testings, inventors have found that the switching frequency of unmanned plane increases, cuts with the raising of unmanned plane
Probability of failure is changed to also increase.Therefore, it is necessary to a kind of switching method, switching to for the terminal including unmanned plane can be improved
Power.
Summary of the invention
Technical problems to be solved of the embodiment of the present invention are to provide a kind of switching method, base station and computer-readable storage medium
Matter, to improve the handover success rate of terminal.
In order to solve the above technical problems, the embodiment of the invention provides a kind of switching methods.Include:
Serving BS sends pre-switch request message to candidate base station, and the pre-switch request message is used to indicate candidate base
It stands and distributes reserved resource for the switching of the terminal, the serving BS is base station belonging to the serving cell of the terminal, institute
Base station belonging to the candidate cell that candidate base station is terminal switching is stated, the reserved resource includes at least bearing resource；
The serving BS receives the candidate base station and means that the terminal distribution reserves the pre-switch returned after resource together
Confirmation message, the pre-switch confirmation message carry the switching command that the candidate cell is directed to the terminal；
When needing the terminal switching to Target cell, the serving BS is to target belonging to the Target cell
Base station sends switch indicating information, and, Xiang Suoshu terminal sends the switching command that the Target cell is directed to the terminal,
In, the target BS is one or more of described candidate base station.
The embodiment of the invention also provides another switching methods, comprising:
Candidate base station receives the pre-switch request message that serving BS is sent, and the pre-switch request message is used to indicate time
The switching that base station is a terminal is selected to distribute reserved resource, the reserved resource includes at least bearing resource, and the serving BS is
Base station belonging to the serving cell of the terminal, the candidate base station are base station belonging to the candidate cell of terminal switching；
The candidate base station executes the admission control processing of the terminal, and is described when agreeing to receive the terminal
Terminal distribution reserves resource, and, Xiang Suoshu serving BS sends pre-switch confirmation message, and the pre-switch confirmation message carries
There is the candidate cell to be directed to the switching command of the terminal.
The embodiment of the invention also provides a kind of serving BSs, comprising: processor and transceiver；Wherein,
The transceiver, for sending pre-switch request message to candidate base station, the pre-switch request message is for referring to
Show that the switching that candidate base station is the terminal distributes reserved resource, the reserved resource includes at least bearing resource；Described in reception
Candidate base station is same to mean that the terminal distribution reserves the pre-switch confirmation message returned after resource, and the pre-switch confirmation message is taken
The switching command of the terminal is directed to the candidate cell；And when needing the terminal switching to Target cell,
Switch indicating information is sent to target BS belonging to the Target cell, and, Xiang Suoshu terminal sends the Target cell
For the switching command of the terminal；
Wherein, the serving BS is base station belonging to the serving cell of the terminal, and the candidate base station is the end
Base station belonging to the candidate cell of switching is held, the target BS is one or more of described candidate base station.
The embodiment of the invention also provides a kind of candidate base stations, comprising:
Transceiver, for receiving the pre-switch request message of serving BS transmission, the pre-switch request message is for referring to
Show that the switching that candidate base station is a terminal distributes reserved resource, the reserved resource includes at least bearing resource, and, agreeing to
When receiving the terminal, resource is reserved for the terminal distribution, Xiang Suoshu serving BS sends pre-switch confirmation message, described pre-
Switch acknowledgment message carries the switching command that the candidate cell is directed to the terminal；
Processor, the admission control for executing the terminal are handled；
Wherein, the serving BS is base station belonging to the serving cell of the terminal, and the candidate base station is the end
Hold base station belonging to the candidate cell of switching.
The embodiment of the invention also provides a kind of base stations, comprising: memory, processor and storage are on a memory and can be
The computer program run on processor realizes switching side as described above when the computer program is executed by the processor
The step of method.
The embodiment of the invention also provides a kind of computer readable storage medium, deposited on the computer readable storage medium
Computer program is contained, when the computer program is executed by processor, the step of realizing switching method as described above.
Compared with prior art, switching method provided in an embodiment of the present invention, base station and computer readable storage medium, can
Before terminal formally switches, to allow the candidate base station of switching to carry out admission control processing in advance, phase is established for terminal
The operation such as access layer configuration of pass, and serving BS can obtain the candidate base station for allowing to receive terminal, to be cut subsequent
When changing, serving BS can be from the above-mentioned candidate base station selection target base station for allowing to receive terminal, since target BS is to allow
The base station of terminal is received, and has carried out relevant configuration operation in advance for the access of terminal, therefore the embodiment of the present invention can guarantee
Effective control of the network to handoff procedure, and improve the success rate of switching.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the unmanned plane of the prior art and the schematic diagram of base station communication；
Fig. 2 is a kind of flow chart of switching method provided in an embodiment of the present invention；
Fig. 3 is another flow chart of switching method provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of serving BS provided in an embodiment of the present invention；
Fig. 5 is another structural schematic diagram of serving BS provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of candidate base station provided in an embodiment of the present invention；
Fig. 7 is another structural schematic diagram of candidate base station provided in an embodiment of the present invention.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.In the following description, such as specific configuration is provided and the specific detail of component is only
In order to help comprehensive understanding the embodiment of the present invention.It therefore, it will be apparent to those skilled in the art that can be to reality described herein
Example is applied to make various changes and modifications without departing from scope and spirit of the present invention.In addition, for clarity and brevity, it is omitted pair
The description of known function and construction.
It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text mean it is related with embodiment
A particular feature, structure, or characteristic is included at least one embodiment of the present invention.Therefore, occur everywhere in the whole instruction
" in one embodiment " or " in one embodiment " not necessarily refer to identical embodiment.In addition, these specific features, knot
Structure or characteristic can combine in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be appreciated that the size of the serial number of following each processes is not meant to execute suitable
Sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention
Process constitutes any restriction.
In the prior art, with the raising apart from ground level, start to overlap between the cell of different base station, small area shape
Also unsetting cell is become from original regular cell, and radius of society have gradually become smaller, number of cells has what is gradually increased to become
Thus gesture causes the switching frequency of terminal to increase, and handoff failure probability also increases.
Can be realized in order to avoid terminal (such as unmanned plane) frequently goes offline, guarantees terminal switching in time, solve it is different
Problem is overlapped between base station cell, the embodiment of the invention provides a kind of switching method, this method allows multiple base stations to do in advance
Good switching prepares, that is, fulfils admission control step ahead of schedule, so as to which handoff procedure is rapidly completed, improves handover success rate.
Referring to figure 2., a kind of switching method provided in an embodiment of the present invention, clothes belonging to the serving cell applied to terminal
Business base station, this method comprises:
Step 21, serving BS sends pre-switch request message to candidate base station, and the pre-switch request message is for referring to
Show that the switching that candidate base station is the terminal distributes reserved resource, the serving BS is belonging to the serving cell of the terminal
Base station, the candidate base station are base station belonging to the candidate cell of terminal switching, and the reserved resource includes at least carrying
Resource.
Here, candidate cell can choose the indexs such as received signal strength/quality of cell according to terminal.Example
Such as, the indexs such as select-out signal receiving intensity or quality meet the part adjacent area of predetermined condition from terminal adjacent area, by part neighbour
Candidate cell of the area as switching, base station belonging to candidate cell is candidate base station.Specifically, signal receiving strength or quality
Etc. indexs can be obtained from the measurement report of terminal.
Serving BS sends pre-switch request message to candidate base station, and message instruction candidate base station is cutting for the terminal
The reserved resource of distribution is changed, for example, admission control processing is carried out after candidate base station receives the pre-switch request message, if agreed to
The terminal accesses candidate cell, then establishes corresponding radio bearer for the terminal, and distribute required radio resource；Alternatively, institute
It states candidate base station and establishes radio bearer for the terminal, but not distributing radio resource；Alternatively, the candidate base station is only local safeguarded
The radio bearer configuration information of the terminal, but do not establish radio bearer, also not distributing radio resource.
The switching that the candidate cell is directed to the terminal can be generated after having executed above-mentioned admission control in candidate base station
Order, the switching command are used to indicate the switching command that terminal switches to candidate cell, and then, candidate base station is sent out to serving BS
Pre-switch confirmation message is sent, carries the switching command in the pre-switch confirmation message.
In embodiments of the present invention, if candidate cell refusal terminal access, at this point, candidate base station can be to serving BS
Pre-switch refuse information is sent, message instruction candidate cell excludes the terminal.
Step 22, the serving BS receives the pre-switch confirmation that the candidate base station is agreed to return when the receiving terminal
Message, the pre-switch confirmation message carry the switching command that the candidate cell is directed to the terminal.
Here, after serving BS receives above-mentioned pre-switch confirmation message, switching command therein can be extracted, and at this
Safeguard that each candidate cell is directed to the switching command of the terminal in ground.
Step 23, when needing the terminal switching to Target cell, the serving BS is to the Target cell institute
The target BS of category sends switch indicating information, and, Xiang Suoshu terminal sends the Target cell cutting for the terminal
Change order, wherein the target BS is one or more of described candidate base station.
Here, serving BS can decide whether the serving cell of switching terminal according to relevant criterion.Switching
Target cell and its affiliated target BS can be selected according to relevant criterion, for example, according to received signal quality/intensity etc.
Index selects the Target cell and target BS for meeting switching condition.Here, the target BS is in the candidate base station
One.Further, in order to improve handover success rate, serving BS can be small from the local candidate for having safeguarded switching command
Selection target cell in area.Then, switching command of the serving BS by the Target cell of local maintenance for terminal is sent to
The terminal accesses Target cell with instruction terminal, also, serving BS also sends switch indicating information to target BS, uses
The terminal is formally received in instruction target BS and Target cell.Subsequent switching flow can be with reference to existing switching flow
It realizes, to save length, repeats no more herein.
By above step, the embodiment of the present invention can be before terminal formally switches, so that the candidate base station of switching can
To carry out admission control processing in advance, the operation such as relevant access layer configuration is established for terminal, and serving BS can obtain
Allow to receive the candidate base station of terminal, so that serving BS can be from the above-mentioned candidate for allowing to receive terminal in subsequent switching
Base station selected target BS since target BS is the base station for allowing to receive terminal, and has carried out phase in advance for the access of terminal
Configuration operation is closed, therefore the embodiment of the present invention can guarantee effective control of the network to handoff procedure, and improve the success of switching
Rate.
In the embodiment of the present invention, serving BS is directed to the switching command of the terminal in local maintenance candidate cell.Specifically
Maintenance mode may include one of following manner or a variety of:
Mode 1: candidate base station periodically sends the pre-switch confirmation message to serving BS.Serving BS, which receives, waits
The pre-switch confirmation message for selecting base station periodicity sending updates the corresponding candidate cell of the candidate base station of local maintenance for institute
State the switching command of terminal.
Specifically, serving BS can carry one and be used to indicate admission control update when sending pre-switch request message
Update cycle instruction information.Candidate base station periodically sends pre-switch confirmation message according to the update cycle, services base
It stands according to the pre-switch confirmation message, updates the corresponding candidate cell of the candidate base station the cutting for the terminal of local maintenance
Change order.For example, serving BS is that timer and timing is arranged in each switching command, when receiving corresponding candidate cell needle
When to the switching command of the terminal, the timer is resetted；Corresponding candidate cell is not yet received upon the timer expiry to be directed to
When the switching command of the terminal, then the switching command that the corresponding candidate cell is directed to the terminal is deleted.Here timer
Timeout value should be greater than or be equal to the update cycle.
Here, the update cycle can be realized using timer, and the timeout value of timer is the update cycle length, time-out
When, then send pre-switch confirmation message.Alternatively, the update cycle can be using fixed pattern, i.e., in fixed time, such as every
Some specific sub-frame (subframe number) of a system frame number (SFN) sends pre-switch confirmation message.
Mode 2: the terminal is handled and received in the admission control that some candidate base station performs the terminal and to clothes
After business base station has sent pre-switch confirmation message, if the candidate base station needs to refuse to connect for some reason (such as load excessive)
Receive the terminal when, candidate base station can to the serving BS send pre-switch refuse information, the pre-switch refuse information
Instruction candidate cell excludes the terminal.At this point, deleting this after the serving BS receives above-mentioned pre-switch refuse information
The corresponding candidate cell of ground maintenance is directed to the switching command of the terminal.
Mode 3: when the candidate cell of terminal switching changes, for example, some (a little) cell is deleted from candidate cell
It removing, candidate cell is newly added in some (a little) cell, at this point, when having newly increased candidate cell in the candidate cell, the clothes
Newly-increased base station belonging to the candidate cell that business base station is newly increased to this sends pre-switch request message, and is sent according to newly-increased base station
Pre-switch confirmation message, in the switching command for locally increasing the described candidate cell newly increased and being directed to the terminal；Example again
Such as, when the existing candidate cell in the candidate cell is deleted, the serving BS deletes the described existing of local maintenance
Candidate cell is directed to the switching command of the terminal, and sends pre-switch more to existing base station belonging to the existing candidate cell
New request message, the pre-switch update request message and indicate that the existing candidate cell deletion is matched for the switching of the terminal
It sets, for example, deleting reserved resource.Specifically, different realizations when reserving resource according to distribution described above, may be used herein
To be that deletion is the radio bearer that the terminal is established and deletion is the radio resource of the terminal distribution；Alternatively, can be,
Delete the radio bearer established for the terminal；Alternatively, can be the radio bearer configuration for the terminal for deleting local maintenance
Information.
In the embodiment of the present invention, serving BS is directed to the switching command of the terminal in local maintenance candidate cell.?
When the serving cell switching of terminal occurs, the former serving BS before switching, which can send the above-mentioned switching command of local maintenance, to be cut
Serving BS after changing.Specifically, when serving BS can send above-mentioned switch indicating information in above-mentioned steps 23, it will be local
The above-mentioned switching command of maintenance sends the serving BS (i.e. target BS) after switching, can complete cutting for terminal in target BS
It changes process and then sends above-mentioned switching command.
The switching method of the embodiment of the present invention is illustrated from serving BS side above.It will be said below from candidate base station side
It is bright.
Referring to figure 3., switching method provided in an embodiment of the present invention, when being applied to candidate base station side, including following step
It is rapid:
Step 31, candidate base station receives the pre-switch request message that serving BS is sent, and the pre-switch request message is used
Reserved resource is distributed in the switching that instruction candidate base station is a terminal, the serving BS is belonging to the serving cell of the terminal
Base station, the candidate base station be the terminal switching candidate cell belonging to base station, the reserved resource include at least hold
Carry resource.
Step 32, the candidate base station executes the admission control processing of the terminal, and when agreeing to receive the terminal,
Resource is reserved for the terminal distribution, and, Xiang Suoshu serving BS sends pre-switch confirmation message, and the pre-switch confirmation disappears
Breath carries the switching command that the candidate cell is directed to the terminal.
Here, when agreeing to receive the terminal, the candidate base station is that the terminal distribution reserves resource, specifically can be with
It is the radio resource established radio bearer for the terminal, and distribute required；Alternatively, the candidate base station is terminal foundation
Radio bearer, but not distributing radio resource；Alternatively, the radio bearer of candidate base station terminal described in local maintenance matches confidence
Breath, but does not establish radio bearer, also not distributing radio resource.
By above step, the candidate base station of the embodiment of the present invention can be fulfiled ahead of schedule when allowing to receive the terminal
The admission control process of terminal, so that if can be rapidly completed and cut when subsequent terminal is switched to the candidate cell of this candidate base station
Process is changed, handover success rate is improved.
After above-mentioned steps 31, if the candidate base station disagree receive the terminal when, the candidate base station
Pre-switch refuse information can be sent to the serving BS, the pre-switch refuse information instruction candidate cell excludes institute
State terminal.
After above-mentioned change step 32, if candidate base station is serviced the base station selected target BS switched for terminal, this
The above-mentioned switching method of inventive embodiments, can with the following steps are included:
Step 33, the candidate base station receives the switch indicating information that serving BS is sent, and the switch indicating information refers to
Show that candidate cell formally receives the terminal.
Step 34, the candidate base station carries out the access of the terminal according to the switch indicating information.
Here, candidate base station can refer to existing switching flow, complete terminal access, no longer superfluous herein to save length
It states.
Safeguard that each candidate cell is directed to the switching command of the terminal for the ease of serving BS side, in above-mentioned steps 32
Later, in the embodiment of the present invention:
1) candidate base station periodically can send the pre-switch confirmation message to the serving BS.Specifically
Period set-up mode can refer to above description.
If 2) candidate base station needs to exclude the terminal, the candidate base station can be sent out to the serving BS
Pre-switch refuse information is sent, the pre-switch refuse information instruction candidate cell excludes the terminal.
If 3) pre-switch that the candidate base station receives serving BS transmission updates request message, the pre-switch updates
The handover configurations for being directed to the terminal are deleted in request message instruction；At this point, the candidate base station is asked according to pre-switch update
Message is sought, the handover configurations that the candidate cell is directed to the terminal are deleted.
Switching-related parameters, are usually directly issued terminal by the handoff procedure of the prior art, when meeting certain condition
Terminal is automatically performed handoff procedure.But the problem is that terminal network side when executing switching cannot receive this
Terminal or the relevant parameter of pre-switch may no longer be applicable in (resource such as distributed).The embodiment of the present invention is cut
Method is changed, allows Current Serving BTS to be terminal real-time servicing and update candidate cell/base station pre-switch parameter, is needing to switch
Shi Zaixiang terminal sends switching command, guarantees network to effective control of handoff procedure while guaranteeing handover success rate.
Equipment based on above method, the embodiment of the invention also provides the above method is implemented.
Referring to figure 4., the embodiment of the invention provides a kind of serving BS, which includes processor 41 and transceiver
42；Wherein,
The transceiver 42, for sending pre-switch request message to candidate base station, the pre-switch request message is used for
Indicate that the switching that candidate base station is the terminal distributes reserved resource, the reserved resource includes at least bearing resource；Receive institute
It states candidate base station and means that the terminal distribution reserves the pre-switch confirmation message returned after resource, the pre-switch confirmation message together
Carry the switching command that the candidate cell is directed to the terminal；And it is needing the terminal switching to Target cell
When, target BS belonging to Xiang Suoshu Target cell sends switch indicating information, and, it is small that Xiang Suoshu terminal sends the target
Area is directed to the switching command of the terminal；
Wherein, the serving BS is base station belonging to the serving cell of the terminal, and the candidate base station is the end
Base station belonging to the candidate cell of switching is held, the target BS is one or more of described candidate base station.
Preferably, the processor 41, for safeguarding that each candidate cell is directed to the switching command of the terminal；The receipts
Device 42 is sent out, is also used to when needing the terminal switching to Target cell, the candidate cell of local maintenance is directed to the end
The switching command at end is sent to the target BS.
Preferably, the processor 41 is also used at least one of in the following way, and maintenance candidate cell is directed to institute
State the switching command of terminal:
The serving BS receives the pre-switch confirmation message of first base station periodicity sending belonging to the first candidate cell,
The first candidate cell for updating local maintenance is directed to the switching command of the terminal；
The serving BS receives the pre-switch refuse information that the second base station belonging to the second candidate cell is sent, and deletes this
Second candidate cell of ground maintenance is directed to the switching command of the terminal, and the pre-switch refuse information instruction described second is candidate
Cell excludes the terminal；
When newly increasing third candidate cell in the candidate cell, the serving BS is to belonging to third candidate cell
Third base station sends pre-switch request message, and the pre-switch confirmation message sent according to third base station, described in locally increasing
Third candidate cell is directed to the switching command of the terminal；
When the 4th candidate cell in the candidate cell is deleted, the serving BS deletes the described of local maintenance
4th candidate cell is directed to the switching command of the terminal, and sends pre-switch more to the 4th base station belonging to the 4th candidate cell
New request message, the pre-switch update request message and indicate that the 4th candidate cell deletes the handover configurations for being directed to the terminal.
Referring to FIG. 5, the embodiment of the invention provides another structural schematic diagrams of serving BS, comprising: processor 501,
Transceiver 502, memory 503 and bus interface, in which:
In embodiments of the present invention, serving BS 500 further include: storage on a memory 503 and can be on processor 501
The computer program of operation, computer program realize following steps when being executed by processor 501: sending pre-switch to candidate base station
Request message, the pre-switch request message is used to indicate the switching that candidate base station is the terminal and distributes reserved resource, described
Reserved resource includes at least bearing resource；Receive the candidate base station with mean the terminal distribution reserve resource after return it is pre-
Switch acknowledgment message, the pre-switch confirmation message carry the switching command that the candidate cell is directed to the terminal；It is needing
When the terminal is switched to Target cell, target BS belonging to Xiang Suoshu Target cell sends switch indicating information, with
And Xiang Suoshu terminal sends the switching command that the Target cell is directed to the terminal, wherein the target BS is the time
Select one or more of base station.Here, the serving BS is base station belonging to the serving cell of the terminal, the candidate
Base station is base station belonging to the candidate cell of terminal switching.
In Fig. 5, bus architecture may include the bus and bridge of any number of interconnection, specifically be represented by processor 501
One or more processors and the various circuits of memory that represent of memory 503 link together.Bus architecture can be with
Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like are linked together, these are all these
Well known to field, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 502 can be
Multiple element includes transmitter and receiver, provides the unit for communicating over a transmission medium with various other devices.
Processor 501, which is responsible for management bus architecture and common processing, memory 503, can store processor 501 and is holding
Used data when row operation.
Optionally, following steps be can also be achieved when computer program is executed by processor 503: safeguarding each candidate cell needle
To the switching command of the terminal；When needing the terminal switching to Target cell, by the candidate cell needle of local maintenance
To the switching command of the terminal, it is sent to the target BS.
Optionally, following steps be can also be achieved when computer program is executed by processor 503:
The pre-switch confirmation message of first base station periodicity sending belonging to the first candidate cell is received, local maintenance is updated
The first candidate cell be directed to the terminal switching command；
The pre-switch refuse information for receiving the transmission of the second base station belonging to the second candidate cell, deletes the second of local maintenance
Candidate cell is directed to the switching command of the terminal, and the pre-switch refuse information indicates that second candidate cell excludes
The terminal；
When newly increasing third candidate cell in the candidate cell, sent to third base station belonging to third candidate cell
Pre-switch request message, and the pre-switch confirmation message sent according to third base station are locally increasing the third candidate cell
For the switching command of the terminal；
When the 4th candidate cell in the candidate cell is deleted, the 4th candidate cell of local maintenance is deleted
For the switching command of the terminal, and pre-switch is sent to the 4th base station belonging to the 4th candidate cell and updates request message,
The pre-switch updates request message and indicates that the 4th candidate cell deletes the handover configurations for being directed to the terminal.
Fig. 6 is please referred to, the embodiment of the invention provides a kind of candidate base stations 60, comprising:
Transceiver 62, for receiving the pre-switch request message of serving BS transmission, the pre-switch request message is used for
Indicating that the switching that candidate base station is a terminal distributes reserved resource, the reserved resource includes at least bearing resource, and, it executes
Admission control processing to the terminal, and when agreeing to receive the terminal, resource is reserved for the terminal distribution, and,
Pre-switch confirmation message is sent to the serving BS, the pre-switch confirmation message carries the candidate cell for described
The switching command of terminal；
Processor 61, the admission control for executing the terminal are handled；
Wherein, the serving BS is base station belonging to the serving cell of the terminal, and the candidate base station is the end
Hold base station belonging to the candidate cell of switching.
Preferably, the transceiver 62 is also used to after sending the pre-switch confirmation message, receives serving BS hair
The switch indicating information sent；The processor 61 is also used to carry out the access of the terminal according to the switch indicating information.
Preferably, the processor 61 is also used to when agreeing to receive the terminal, is wirelessly held for terminal foundation
It carries, and distributes required radio resource；Alternatively, establishing radio bearer for the terminal, but not distributing radio resource；Alternatively, at this
The radio bearer configuration information of the terminal is safeguarded on ground, but does not establish radio bearer, also not distributing radio resource.
Preferably, the transceiver 62 is also used to after receiving the pre-switch request message that serving BS is sent, if institute
Candidate base station is stated when disagreeing the receiving terminal, Xiang Suoshu serving BS sends pre-switch refuse information, the pre-switch
Refuse information instruction candidate cell excludes the terminal.
Preferably, the transceiver 62 is also used in the candidate base station after agreeing to receive the terminal, periodically
Send the pre-switch confirmation message to the serving BS.
Preferably, the transceiver 62 was also used to after the step of admission control for executing the terminal is handled,
If the candidate base station needs to exclude the terminal, Xiang Suoshu serving BS sends pre-switch refuse information, the pre-cut
It changes refuse information instruction candidate cell and excludes the terminal.
Preferably, the transceiver 62 is also used to after sending the pre-switch confirmation message, receives serving BS hair
The pre-switch sent updates request message, and the pre-switch updates request message instruction and deletes the handover configurations for being directed to the terminal；
The processor 61 is also used to update request message according to the pre-switch, deletes the candidate cell for the terminal
Handover configurations.
Referring to FIG. 7, the embodiment of the invention provides another structural schematic diagrams of candidate base station, comprising: processor 701,
Transceiver 702, memory 703 and bus interface, in which:
In embodiments of the present invention, candidate base station 700 further include: storage on a memory 703 and can be on processor 701
The computer program of operation, computer program realize following steps when being executed by processor 701: receiving the pre- of serving BS transmission
Switching request message, the pre-switch request message are used to indicate the switching that candidate base station is a terminal and distribute reserved resource, institute
Reserved resource is stated including at least bearing resource；The admission control for executing the terminal is handled, and when agreeing to receive the terminal, is
The terminal distribution reserves resource, and, Xiang Suoshu serving BS sends pre-switch confirmation message, the pre-switch confirmation message
Carry the switching command that the candidate cell is directed to the terminal.Here, the serving BS is that the service of the terminal is small
Base station belonging to area, the candidate base station are base station belonging to the candidate cell of terminal switching.
In Fig. 7, bus architecture may include the bus and bridge of any number of interconnection, specifically be represented by processor 701
One or more processors and the various circuits of memory that represent of memory 703 link together.Bus architecture can be with
Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like are linked together, these are all these
Well known to field, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 702 can be
Multiple element includes transmitter and receiver, provides the unit for communicating over a transmission medium with various other devices.
Processor 701, which is responsible for management bus architecture and common processing, memory 703, can store processor 701 and is holding
Used data when row operation.
Optionally, can also be achieved following steps when computer program is executed by processor 703: sending, the pre-switch is true
Recognize after message, receives the switch indicating information that serving BS is sent；According to the switch indicating information, the terminal is carried out
Access.
Optionally, following steps be can also be achieved when computer program is executed by processor 703: being established for the terminal wireless
Carrying, and distribute required radio resource；Alternatively, the candidate base station is that the terminal establishes radio bearer, but does not distribute nothing
Line resource；Alternatively, the radio bearer configuration information of candidate base station terminal described in local maintenance, but do not establish and wirelessly hold
It carries, also not distributing radio resource.
Optionally, following steps be can also be achieved when computer program is executed by processor 703: being sent receiving serving BS
Pre-switch request message after, if the candidate base station, which disagrees, receives the terminal, sent to the serving BS pre-
Switch refuse information, the pre-switch refuse information instruction candidate cell excludes the terminal.
Optionally, following steps be can also be achieved when computer program is executed by processor 703: in the candidate base station same
After meaning receives the terminal, the pre-switch confirmation message periodically is sent to the serving BS.
Optionally, following steps be can also be achieved when computer program is executed by processor 703: executing connecing for the terminal
After control of receiving processing, if the candidate base station needs to exclude the terminal, pre-switch is sent to the serving BS
Refuse information, the pre-switch refuse information instruction candidate cell exclude the terminal.
Optionally, can also be achieved following steps when computer program is executed by processor 703: sending, the pre-switch is true
Recognize after message, receives the pre-switch that serving BS is sent and update request message, the pre-switch updates request message instruction and deletes
Except the handover configurations for being directed to the terminal；Request message is updated according to the pre-switch, deletes the candidate cell for described
The handover configurations of terminal.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In embodiment provided herein, it should be understood that disclosed device and method can pass through others
Mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of device or unit
It connects, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.Some or all of unit therein can be selected to realize the embodiment of the present invention according to the actual needs
Purpose.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) execute all or part of step of switching method described in each embodiment of the present invention
Suddenly.And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, ROM, RAM, magnetic or disk etc. are various can store program generation
The medium of code.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (14)
1. a kind of switching method characterized by comprising
Serving BS sends pre-switch request message to candidate base station, and the pre-switch request message is used to indicate candidate base station and is
The switching of one terminal distributes reserved resource, and the serving BS is base station belonging to the serving cell of the terminal, the candidate
Base station is base station belonging to the candidate cell of terminal switching, and the reserved resource includes at least bearing resource；
The serving BS receives the candidate base station and means that the terminal distribution reserves the pre-switch confirmation returned after resource together
Message, the pre-switch confirmation message carry the switching command that the candidate cell is directed to the terminal；
When needing the terminal switching to Target cell, the serving BS is to target BS belonging to the Target cell
Switch indicating information is sent, and, Xiang Suoshu terminal sends the switching command that the Target cell is directed to the terminal, wherein
The target BS is one or more of described candidate base station.
2. the method as described in claim 1, which is characterized in that further include:
The serving BS safeguards that each candidate cell is directed to the switching command of the terminal；
When needing the terminal switching to Target cell, the serving BS is by the candidate cell of local maintenance for described
The switching command of terminal is sent to the target BS.
3. the method as described in claim 1, which is characterized in that the serving BS at least one of in the following way,
Safeguard that candidate cell is directed to the switching command of the terminal:
The serving BS receives the pre-switch confirmation message of first base station periodicity sending belonging to the first candidate cell, updates
First candidate cell of local maintenance is directed to the switching command of the terminal；
The serving BS receives the pre-switch refuse information that the second base station belonging to the second candidate cell is sent, and deletes local dimension
Second candidate cell of shield is directed to the switching command of the terminal, and the pre-switch refuse information indicates second candidate cell
Exclude the terminal；
When newly increasing third candidate cell in the candidate cell, the serving BS is to third belonging to third candidate cell
Base station sends pre-switch request message, and the pre-switch confirmation message sent according to third base station, is locally increasing the third
Candidate cell is directed to the switching command of the terminal；
When the 4th candidate cell in the candidate cell is deleted, the serving BS deletes the described 4th of local maintenance
Candidate cell is directed to the switching command of the terminal, and sends pre-switch update to the 4th base station belonging to the 4th candidate cell and ask
Message is sought, the pre-switch updates request message and indicates that the 4th candidate cell deletes the handover configurations for being directed to the terminal.
4. a kind of switching method characterized by comprising
Candidate base station receives the pre-switch request message that serving BS is sent, and the pre-switch request message is used to indicate candidate base
It stands and distributes reserved resource for the switching of a terminal, the serving BS is base station belonging to the serving cell of the terminal, described
Candidate base station is base station belonging to the candidate cell of terminal switching, and the reserved resource includes at least bearing resource；
The candidate base station, which executes, handles the admission control of the terminal, and is the end when agreeing to receive the terminal
Reserved resource is distributed at end, and, Xiang Suoshu serving BS sends pre-switch confirmation message, and the pre-switch confirmation message carries
The candidate cell is directed to the switching command of the terminal.
5. method as claimed in claim 4, which is characterized in that after sending the pre-switch confirmation message, the method
Further include:
The candidate base station receives the switch indicating information that serving BS is sent；
The candidate base station carries out the access of the terminal according to the switch indicating information.
6. method as claimed in claim 4, which is characterized in that described the step of reserving resource for the terminal distribution, comprising:
The candidate base station is that the terminal establishes radio bearer, and distributes required radio resource；Alternatively,
The candidate base station establishes radio bearer for the terminal, but not distributing radio resource；Alternatively,
The radio bearer configuration information of candidate base station terminal described in local maintenance, but do not establish radio bearer, also regardless of
With radio resource.
7. method as claimed in claim 4, which is characterized in that in the step for receiving the pre-switch request message that serving BS is sent
After rapid, if the candidate base station, which disagrees, receives the terminal, the method also includes:
The candidate base station sends pre-switch refuse information to the serving BS, and the pre-switch refuse information instruction is candidate small
Area excludes the terminal.
8. method as claimed in claim 4, which is characterized in that agreeing to the step of receiving the terminal in the candidate base station
Later, the method also includes:
The candidate base station periodically sends the pre-switch confirmation message to the serving BS.
9. method as claimed in claim 4, which is characterized in that in the step of admission control for executing the terminal is handled
Later, if the candidate base station needs to exclude the terminal, the method also includes:
The candidate base station sends pre-switch refuse information to the serving BS, and the pre-switch refuse information instruction is candidate small
Area excludes the terminal.
10. method as claimed in claim 4, which is characterized in that after sending the pre-switch confirmation message, the method
Further include:
The candidate base station receives the pre-switch that serving BS is sent and updates request message, and the pre-switch updates request message and refers to
Show the handover configurations deleted and be directed to the terminal；
The candidate base station updates request message according to the pre-switch, deletes the switching that the candidate cell is directed to the terminal
Configuration.
11. a kind of serving BS characterized by comprising processor and transceiver；Wherein,
The transceiver, for sending pre-switch request message to candidate base station, the pre-switch request message is used to indicate time
The switching that base station is a terminal is selected to distribute reserved resource, the reserved resource includes at least bearing resource；Receive the candidate base
It stands with the pre-switch confirmation message returned after the reserved resource of the terminal distribution is meant, the pre-switch confirmation message carrying is
State the switching command that candidate cell is directed to the terminal；And when needing the terminal switching to Target cell, Xiang Suoshu
Target BS belonging to Target cell sends switch indicating information, and Xiang Suoshu terminal sends the Target cell and is directed to the terminal
Switching command；
Wherein, the serving BS is base station belonging to the serving cell of the terminal, and the candidate base station is that the terminal is cut
Base station belonging to the candidate cell changed, the target BS are one or more of described candidate base station.
12. a kind of candidate base station characterized by comprising
Transceiver, for receiving the pre-switch request message of serving BS transmission, the pre-switch request message is used to indicate time
The switching that base station is a terminal is selected to distribute reserved resource, the reserved resource includes at least bearing resource, and, agreeing to receive
When the terminal, resource is reserved for the terminal distribution, Xiang Suoshu serving BS sends pre-switch confirmation message, the pre-switch
Confirmation message carries the switching command that the candidate cell is directed to the terminal；
Processor, the admission control for executing the terminal are handled；
Wherein, the serving BS is base station belonging to the serving cell of the terminal, and the candidate base station is that the terminal is cut
Base station belonging to the candidate cell changed.
13. a kind of base station characterized by comprising memory, processor and storage can transport on a memory and on a processor
Capable computer program is realized as described in any one of claims 1 to 10 when the computer program is executed by the processor
Switching method the step of.
14. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program, when the computer program is executed by processor, realizing the switching method as described in any one of claims 1 to 10
Step.
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| CN201810009341.3A CN110012513B (en) | 2018-01-05 | 2018-01-05 | Switching method, base station and computer readable storage medium |
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