CN107438271A - Method and device, base station, user equipment and the system of cell switching - Google Patents
Method and device, base station, user equipment and the system of cell switching Download PDFInfo
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- CN107438271A CN107438271A CN201610357225.1A CN201610357225A CN107438271A CN 107438271 A CN107438271 A CN 107438271A CN 201610357225 A CN201610357225 A CN 201610357225A CN 107438271 A CN107438271 A CN 107438271A
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000001360 synchronised effect Effects 0.000 claims abstract description 80
- 230000004048 modification Effects 0.000 claims description 7
- 238000012986 modification Methods 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 5
- 235000007164 Oryza sativa Nutrition 0.000 abstract description 9
- 235000021186 dishes Nutrition 0.000 abstract description 9
- 235000009566 rice Nutrition 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 3
- 240000007594 Oryza sativa Species 0.000 abstract 1
- 230000008859 change Effects 0.000 description 11
- 241000209094 Oryza Species 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
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- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
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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
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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
- H04W36/0055—Transmission or use of information for re-establishing the radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
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Abstract
The invention provides method and device, base station, user equipment and the system of a kind of cell switching, wherein, this method includes：After new cell being established in base station on original hardware resource, user equipment (UE) receives the information for down-going synchronous to new cell to be reconstructed that base station issues, and the amended random access parameter in base station, wherein, UE is to perceive to need to rebuild in base station to be cut into the UE of new cell by needing of changing that the system broadcast information of former cell determines after new cell；UE is switched to new cell according to for down-going synchronous to the information of new cell and amended random access parameter.By the present invention, solve the problems, such as UE call drops caused by being interrupted when cell is rebuild in correlation technique due to signal of eating dishes without rice or wine, reached the effect for improving Consumer's Experience.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of method and device of cell switching, base station, Yong Hushe
Standby and system.
Background technology
During Long Term Evolution (Long Term Evolution, referred to as LTE) network operation, it may be necessary to carry out
Cell is rebuild, and reconstruction here refers to need that Physical Cell Identifier (Physical Cell Identity, referred to as PCI) occurs
The reconstruction of change, i.e., cell is changed to PCI b by PCI a on original hardware resource.Common cell in correlation technique
Rebuilding scene includes：(1) PCI conflicts often occur in LTE network operation to obscure, now needs to change the PCI of cell and enter
Row cell is rebuild；(2) when the cell change including needs carry out PCI containing cell, now need to carry out cell reconstruction.
And routine cell process of reconstruction, due to be carried out on original hardware resource cell re-establish, it is necessary to
Original cell is first deleted, then re-establishes cell again, the interruption of second level duration occurs for the signal that will certainly so to eat dishes without rice or wine, just
It can cause user equipment present in original cell (User Equipment, referred to as UE) that call drop occurs.
For the above mentioned problem in correlation technique, effective solution at present not yet be present.
The content of the invention
The invention provides method and device, base station, user equipment and the system of cell switching, at least to solve related skill
Caused by being interrupted when cell is rebuild in art due to signal of eating dishes without rice or wine the problem of UE call drops.
According to an aspect of the invention, there is provided a kind of method of cell switching, including：In base station in original hardware
After new cell is established in resource, what the user equipment (UE) reception base station issued is used for down-going synchronous to new cell to be reconstructed
Information, and the amended random access parameter in the base station, wherein, the UE is rebuild newly to perceive needs in the base station
After cell by change former cell system broadcast information determine need be cut into the UE of the new cell；The UE according to
In down-going synchronous the new cell is switched to the information of the new cell and amended random access parameter.
Further, the information for down-going synchronous to the new cell includes at least one of：Main synchronous letter
Number PSS, auxiliary synchronous signals SSS, cell reference signals CRS, system information SI.
Further, the UE joins according to for down-going synchronous to the information of the new cell and amended Stochastic accessing
Number, which is switched to the new cell, to be included：The UE is according under the information for down-going synchronous to the new cell and the new cell
Row is synchronous；The UE carries out Stochastic accessing to be switched to the new cell according to amended random access parameter.
According to another aspect of the present invention, there is provided a kind of method of cell switching, including：Needs are perceived in base station
When rebuilding new cell, the system broadcast information that former cell is changed in base station determines to need to be cut into the UE of the new cell；The base
Stand and the new cell is established on original hardware resource；The base station is issued for down-going synchronous to described new small to the UE
The information in area, and the amended random access parameter in the base station, wherein, the down-going synchronous that is used for is to the new cell
Information and amended random access parameter are used to indicate that the UE is switched to the new cell.
Further, the information for down-going synchronous to the new cell includes at least one of：Main synchronous letter
Number PSS, auxiliary synchronous signals SSS, cell reference signals CRS, system information SI.
Further, before the random access parameter is changed in the base station, methods described also includes：The base station resistance
Fill in cell residing for the UE.
According to another aspect of the present invention, there is provided a kind of device of cell switching, applied to user equipment (UE) side, bag
Include：First receiving module, for after new cell is established in base station on original hardware resource, receiving the use that the base station issues
Random access parameter after information in down-going synchronous to the new cell, and base station modification, wherein, described first receives
Module is to perceive to need to rebuild in base station to need to cut by change that the system broadcast information of former cell determines after new cell
To the first receiving module of the new cell；Handover module, for according to be used for down-going synchronous to the new cell information with
Amended random access parameter is switched to the new cell.
Further, the information for down-going synchronous to the new cell includes at least one of：Main synchronous letter
Number PSS, auxiliary synchronous signals SSS, cell reference signals CRS, system information SI.
Further, the handover module includes：Synchronization unit, for according to for down-going synchronous to the new cell
Information is synchronous with the new cell downlink；Switch unit, for according to amended random access parameter carry out Stochastic accessing with
It is switched to the new cell.
According to a further aspect of the invention, there is provided a kind of device of cell switching, applied to base station side, including：Place
Module is managed, when needing reconstruction information cell for being perceived in base station, the system broadcast information for changing former cell determines that needs are cut
Enter the UE to new cell to be reconstructed；Module is established, for establishing the new cell on original hardware resource；Issue mould
Block, for issuing the information for down-going synchronous to the new cell, and amended random access parameter to the UE, its
In, the down-going synchronous that is used for is used to indicate the UE switchings to the information of the new cell and amended random access parameter
To the new cell.
Further, the information for down-going synchronous to the new cell includes at least one of：Main synchronous letter
Number PSS, auxiliary synchronous signals SSS, cell reference signals CRS, system information SI.
Further, described device also includes：Blocking module, for before the random access parameter is changed, blocking
Cell residing for the UE.
According to a further aspect of the invention, there is provided a kind of user equipment (UE), including it is above-mentioned applied to any one of UE sides
Cell switching device.
According to a further aspect of the invention, there is provided a kind of base station, including the above-mentioned any one applied to base station side
Cell switching device.
According to a further aspect of the invention, there is provided a kind of system of cell switching, including：Above-mentioned user equipment (UE) and
Above-mentioned base station.
By the present invention, issued while new cell is rebuild to terminal in information of the down-going synchronous to new cell and modification
Random access parameter afterwards, so that it is guaranteed that cell rebuild before UE can be switched on the premise of business is unaffected it is new small
Area, solve the problems, such as UE call drops caused by being interrupted when cell is rebuild in correlation technique due to signal of eating dishes without rice or wine, reached and carried
The effect of high Consumer's Experience.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the method flow diagram one of cell switching according to embodiments of the present invention；
Fig. 2 is the method flow diagram two of cell switching according to embodiments of the present invention；
Fig. 3 is the structured flowchart one of the device of cell switching according to embodiments of the present invention；
Fig. 4 is the structured flowchart two of the device of cell switching according to embodiments of the present invention；
Fig. 5 is the flow chart according to the guarantee UE of the alternative embodiment of the present invention not cell method for reconstructing of call drop；
Fig. 6 is the flow chart that implementation is rebuild according to the cell of alternative embodiment of the present invention.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.
A kind of method of cell switching is provided in the present embodiment, and Fig. 1 is cell switching according to embodiments of the present invention
Method flow diagram one, as shown in figure 1, the flow comprises the following steps：
Step S102：After establishing new cell on original hardware resource in base station, user equipment (UE) receives base station and issued
The information for being used for down-going synchronous and arriving new cell to be reconstructed, and the amended random access parameter in base station, wherein, UE for
Base station perceives to need to rebuild after new cell is cut into new cell by the needs for the system broadcast information determination for changing former cell
UE；
Step S104：UE is switched to according to for down-going synchronous to the information of new cell and amended random access parameter
New cell.
By the above-mentioned steps S102 to step S104 of the present embodiment, issued while new cell is rebuild to terminal
Information and amended random access parameter in down-going synchronous to new cell, so that it is guaranteed that the UE before cell is rebuild can be in industry
Be engaged in it is unaffected on the premise of be switched to new cell, solve in correlation technique when cell is rebuild because signal of eating dishes without rice or wine interrupts
The problem of caused UE call drops, the effect for improving Consumer's Experience is reached.
In the alternative embodiment of the present embodiment, for down-going synchronous to the new cell information include it is following at least it
One：Primary and secondary synchronization signals (Primary Synchronization Signal, referred to as PSS) and auxiliary synchronous signals
(Secondary Synchronization Signal, referred to as SSS), cell reference signals (Cell-specific
Reference signals, referred to as CRS), system information (System Information, referred to as SI).Need what is illustrated
It is that the above-mentioned description for for information of the down-going synchronous to new cell to be reconstructed is only the present embodiment preference information, its
The information that he is used for down-going synchronous is also within protection scope of the present invention.In addition, base station in addition to issuing the information, is gone back
Can issue UE it is residing before cell information, that is, before not switching cell information.UE can be ensured by the information
Follow-up switching flow is continued executing with after signal short interruption of eating dishes without rice or wine.
In addition, it can pass through for issuing for the switching command in the present embodiment
The mode that RRCConnectionReconfiguration message carries switching command is issued to UE.Other can certainly be passed through
The mode that message carries switching command issues, and is intended merely to be illustrated herein.
In another optional embodiment of the present embodiment, for the UE that is related in the present embodiment according to for descending
It is synchronized to the information of the new cell and amended random access parameter is switched to the mode of new cell, can be in the following way
To realize：
Step S104-1：UE is synchronous with new cell downlink according to the information for down-going synchronous to new cell；
Step S104-2：UE carries out Stochastic accessing to be switched to new cell according to amended random access parameter.
From above-mentioned steps S104-1 and S104-2, after UE receives switching command, can be received before
Information it is synchronous with the new cell downlink that needs are switched to, and then according to amended random access parameter carry out Stochastic accessing,
The random access parameter can be that Physical Random Access Channel (Physical Random Access Channel, is referred to as
PRACH) parameter.UE continues business after new cell is switched to.
It should be noted that above-mentioned Fig. 1 embodiment is described from the terminal of the present invention, with reference to Fig. 2, from
Technical scheme is described in detail in base station side again.That is, Fig. 1 and Fig. 2 have been carried out in detail from corresponding both sides
Description.
Fig. 2 is the method flow diagram two of cell switching according to embodiments of the present invention, as shown in Fig. 2 the step of this method
Including：
Step S202：Perceived in base station when needing to rebuild new cell, the system broadcast information that former cell is changed in base station is true
Surely need to be cut into the UE of new cell to be reconstructed；
Step S204：New cell is established in base station on original hardware resource；
Step S206：Base station issues amended random to the information of the new cell and base station for down-going synchronous to UE
Access parameter, wherein, it is used to indicate that UE switches for the information of down-going synchronous to new cell and amended random access parameter
To new cell.
It should be noted that the system broadcast information that former cell is changed in base station determines to need to be cut into new cell to be reconstructed
UE be to ensure to prevent the UE of other cells from being linked into by changing system broadcast information while new cell is rebuild
New cell；In addition, what is be related in Fig. 2 is used for down-going synchronous to the information of new cell to be reconstructed with being related in Fig. 1 embodiments
To the information for down-going synchronous to new cell to be reconstructed be the same, will not be repeated here.
In addition, before the random access parameter in system information SI is changed in the base station of the present embodiment, the side of the present embodiment
Method can also include：Cell residing for the obstruction UE of base station.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation
The method of example can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but a lot
In the case of the former be more preferably embodiment.Based on such understanding, technical scheme is substantially in other words to existing
The part that technology contributes can be embodied in the form of software product, and the computer software product is stored in a storage
In medium (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal equipment (can be mobile phone, calculate
Machine, server, or network equipment etc.) method that performs each embodiment of the present invention.
Additionally provide a kind of device of cell switching in the present embodiment, the device is used to realizing above-described embodiment and preferably
Embodiment, repeating no more for explanation was carried out.As used below, term " module " can realize predetermined function
The combination of software and/or hardware.Although device described by following examples is preferably realized with software, hardware, or
The realization of the combination of person's software and hardware is also what may and be contemplated.
Fig. 3 is the structured flowchart one of the device of cell switching according to embodiments of the present invention, and the device is set applied to user
Standby UE sides, as shown in figure 3, the device includes：First receiving module 32, for being established in base station on original hardware resource newly
After cell, random access parameter after the information for down-going synchronous to new cell that base station issues, and base station modification is received, its
In, the first receiving module is to perceive to need to determine by changing the system broadcast information of former cell after rebuilding new cell in base station
Need be cut into the first receiving module of new cell；Handover module 34, it is of coupled connections with the first receiving module 32, for basis
New cell is switched to for the information of down-going synchronous to new cell and amended random access parameter.
Alternatively, the handover module 34 being related in the present embodiment includes：Synchronization unit, it is used for down-going synchronous for basis
Information to new cell to be reconstructed is synchronous with new cell downlink；Switch unit, for according to amended random access parameter
Stochastic accessing is carried out to be switched to new cell.
Fig. 4 is the structured flowchart two of the device of cell switching according to embodiments of the present invention, and the device is applied to base station side,
As shown in figure 4, the device includes：Processing module 42, when needing to rebuild cell for being perceived in base station, change former cell is
System broadcast message determines to need to be cut into the UE of new cell to be reconstructed；Module 44 is established, is of coupled connections with processing module 42, is used
In establishing new cell on original hardware resource；Module 46 is issued, is of coupled connections with establishing module 44, for hair under UE
Information in down-going synchronous to new cell, and amended random access parameter, wherein, for down-going synchronous to new cell
Information and amended random access parameter are used to indicate that UE is switched to new cell.
Alternatively, the present embodiment can also include：Blocking module, for the Stochastic accessing ginseng in system information SI is changed
Before number, block cell residing for the UE.
It should be noted that what is be related in Fig. 3 and Fig. 4 device embodiments is used for down-going synchronous to be reconstructed new small
The information in area is used for down-going synchronous to the letter of new cell to be reconstructed with what is be related in above-mentioned Fig. 1 and Fig. 2 embodiment of the method
Breath is consistent, will not be repeated here.
In addition, the present embodiment additionally provides a kind of user equipment (UE), the UE includes any in above-mentioned Fig. 3 device embodiments
Kind cell switching device.In addition, a kind of base station is additionally provided, including cell any in above-mentioned Fig. 4 device embodiments switching
Device.And additionally provide a kind of system for the cell switching being made up of base station and UE.
The present invention is illustrated with reference to the alternative embodiment of the present invention；
This optional implementation provides a kind of cell reconstructing device of guarantee UE not call drops, and the reconstructing device includes：Cell pipe
Manage module, handover module, service-aware module and cell and rebuild module.Wherein, the service-aware module is used to perceive needs
Carry out cell reconstruction；And cell rebuilds module and is used to be rapidly completed cell reconstruction, and cooperation other modules completion on-line UE
Switching to ensure UE not call drops, the module being related in addition in this alternative embodiment is all to be located at base station side.
Below based on the module and unit of above-mentioned this alternative embodiment, for ensureing UE not call drops in this alternative embodiment
Cell method for reconstructing illustrates, and includes the step of this method：
Step S302：Business detection module, which perceives, to be needed to carry out cell reconstruction, and notifying cell management module is by cell
Barred arouses cell and rebuilds module to prevent new UE from accessing；
Step S304：Cell rebuilds module on original hardware resource, in addition to issuing original old cell information, also needs
Master sync signal PSS, auxiliary synchronous signals SSS, cell reference signals CRS, the system information SI of new cell are issued, to ensure UE
Down-going synchronous (DL synchronising) to Target cell can succeed；
Step S306：Cell rebuilds module and virtually establishes new cell, and notifies handover module to perform switching stream to on-line UE
Journey；
Step S308：Handover module performs the switching flow to the new cell virtually established, and issues switching life to UE
PRACH parameters after order and modification in system information；
Step S310：Cell rebuilds module on original hardware resource, quickly rebuilds new cell；
Step S312：UE is accomplished under Target cell according to primary and secondary synchronization signals, cell reference signals and system message
Row is synchronous, and carries out Stochastic accessing with according to the PRACH parameters of modification, completes to be switched to the flow of new cell
Step S314：UE is switched to new cell relays and continues carry out business；
By above-mentioned steps S302 to step S314, cell space-time message can be rebuild in this alternative embodiment
Number break period shortens to a millisecond rank, then coupled system information updating flow, switching flow, ensure cell rebuild before UE can
Not to be affected in business, i.e., cell reconstruction is completed in the case where UE is without any perception, greatly improve cell reconstruction
When Consumer's Experience；And then overcome interrupted in correlation technique when cell is rebuild due to signal of eating dishes without rice or wine caused by UE call drops
Problem.
This alternative embodiment is further detailed with reference to the accompanying drawings and examples；
Embodiment 1
Fig. 5 is according to the flow chart of the guarantee UE of the alternative embodiment of the present invention not cell method for reconstructing of call drop, such as Fig. 5 institutes
Show, include the step of this method：
Step S502：Business detection module, which perceives, to be needed to carry out cell reconstruction；
Wherein, as PCI needs to change, or need to change containing the cell attribute including PCI；
Step S504：Service-aware module rebuilds module to cell and sends cell reconstruction notice；
Step S506：Cell management module receives the notice that cell rebuilds module, to change the Barred in system information
With PRACH parameters, and on former hardware resource, in addition to issuing old cell information, while system information/master of new cell is issued
Auxiliary synchronous signals/reference signal；And rebuild module response to cell
Step S508：Cell rebuilds module and fictionalizes new cell, so that handover module is performed to UE from old cell to new small
The switching preparation process in area；
Step S510：Cell rebuilds module notice handover module and performs the switching flow that cell is rebuild；
Step S512：Handover module is performed from old cell to the switching preparation process of new cell to UE；
Step S514：Handover module issues RRCConnectionReconfiguration message to UE, carries switching life
Order；
Step S516：Handover module notifying cell rebuilds module, and switching is ready to complete；
Step S518：Cell rebuilds module and performs cell reconstruction flow so that the fast quick-recovery of signal of eating dishes without rice or wine；
Step S520：Because new cell has been recovered, UE is accessed in the new cell, and is sent
RRCConnectionReconfigurationComplete completes to be switched in new cell, and operation flow continues.
Embodiment 2
Fig. 6 is the flow chart that implementation is rebuild according to the cell of alternative embodiment of the present invention, as shown in fig. 6, this method
The step of include：
Step S602：Cell rebuilds module coordination extra system information/master for issuing new cell again on former hardware resource
Auxiliary synchronization/reference signal；
Step S604：Cell rebuilds module and fictionalizes new cell, so that handover module can switch over preparation flow；
Step S606：Cell rebuilds module notice baseband processing unit and carries out cell reconstruction；
Step S608：Baseband processing unit is completed cell and rebuild, and now, the signal of eating dishes without rice or wine of new cell has recovered, and UE's cuts
Change of current journey can continue executing with；
Step S610：Cell rebuilds module notice RF processing unit and carries out cell reconstruction, including PCI and ECGI are more
Newly, without the switch motion for carrying out radio-frequency channel；
Step S612：Cell, which is rebuild, to be completed.
It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong
Cross in the following manner realization, but not limited to this：Above-mentioned module is respectively positioned in same processor；Or above-mentioned module is respectively positioned at more
In individual processor.
Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can
The program code for performing following steps to be arranged to storage to be used for：
Step S1：After establishing new cell on original hardware resource in base station, user equipment (UE) receives what base station issued
Information for down-going synchronous to new cell to be reconstructed, and the amended random access parameter in base station, wherein, UE is in base
Station perceives to need to rebuild is cut into new cell after new cell by needing of changing that the system broadcast information of former cell determines
UE；
Step S2：UE is switched to newly according to for down-going synchronous to the information of new cell and amended random access parameter
Cell.
Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can
The program code for performing following steps to be arranged to storage to be used for：
Step S1：Perceived in base station when needing to rebuild new cell, the system broadcast information that former cell is changed in base station determines
Need to be cut into the UE of new cell；
Step S2：New cell is established in base station on original hardware resource；
Step S3：Base station issues the information for down-going synchronous to new cell to UE, and base station is amended connects at random
Enter parameter, wherein, it is used to indicate that UE is switched to for the information of down-going synchronous to new cell and amended random access parameter
New cell.
Alternatively, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only storage (ROM,
Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disc or
CD etc. is various can be with the medium of store program codes.
Alternatively, the specific example in the present embodiment may be referred to described in above-described embodiment and optional embodiment
Example, the present embodiment will not be repeated here.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed
Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to they are stored
Performed in the storage device by computing device, and in some cases, can be with different from shown in order execution herein
The step of going out or describing, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or
Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (15)
- A kind of 1. method of cell switching, it is characterised in that including：After establishing new cell on original hardware resource in base station, what the user equipment (UE) reception base station issued is used for descending The information of new cell to be reconstructed, and the amended random access parameter in the base station are synchronized to, wherein, the UE is in institute State base station perceive need to rebuild the needs determined after new cell by changing the system broadcast information of former cell be cut into it is described The UE of new cell；The UE for down-going synchronous to the information of the new cell and amended random access parameter according to being switched to New cell.
- 2. according to the method for claim 1, it is characterised in thatThe information for down-going synchronous to the new cell includes at least one of：Master sync signal PSS, auxiliary synchronous letter Number SSS, cell reference signals CRS, system information SI.
- 3. according to the method for claim 1, it is characterised in that the UE is according to for down-going synchronous to the new cell Information and amended random access parameter, which are switched to the new cell, to be included：The UE is synchronous with the new cell downlink according to the information for down-going synchronous to the new cell；The UE carries out Stochastic accessing to be switched to the new cell according to amended random access parameter.
- A kind of 4. method of cell switching, it is characterised in that including：Perceived in base station when needing to rebuild new cell, the system broadcast information that former cell is changed in base station determines to need to be cut into institute State the UE of new cell；The new cell is established in the base station on original hardware resource；The base station issues the information for down-going synchronous to the new cell to the UE, and the base station it is amended with Machine access parameter, wherein, it is described to be used for for down-going synchronous to the information of the new cell and amended random access parameter Indicate that the UE is switched to the new cell.
- 5. according to the method for claim 4, it is characterised in thatThe information for down-going synchronous to the new cell includes at least one of：Master sync signal PSS, auxiliary synchronous letter Number SSS, cell reference signals CRS, system information SI.
- 6. according to the method for claim 1, it is characterised in that before the random access parameter is changed in the base station, Methods described also includes：Cell residing for the UE is blocked in the base station.
- A kind of 7. device of cell switching, it is characterised in that applied to user equipment (UE) side, including：First receiving module, for after new cell is established in base station on original hardware resource, receiving what the base station issued Random access parameter after information for down-going synchronous to the new cell, and base station modification, wherein, described first connects It is to perceive to need to cut by the needs for the system broadcast information determination for changing former cell after rebuilding new cell in base station to receive module Enter the first receiving module to the new cell；Handover module, for switching according to for down-going synchronous to the information of the new cell and amended random access parameter To the new cell.
- 8. device according to claim 7, it is characterised in thatThe information for down-going synchronous to the new cell includes at least one of：Master sync signal PSS, auxiliary synchronous letter Number SSS, cell reference signals CRS, system information SI.
- 9. device according to claim 8, it is characterised in that the handover module includes：Synchronization unit, for synchronous with the new cell downlink according to the information for being used for down-going synchronous to the new cell；Switch unit, for carrying out Stochastic accessing according to amended random access parameter to be switched to the new cell.
- A kind of 10. device of cell switching, it is characterised in that applied to base station side, including：Processing module, when needing reconstruction information cell for being perceived in base station, the system broadcast information for changing former cell determines Need to be cut into the UE of new cell to be reconstructed；Module is established, for establishing the new cell on original hardware resource；Module is issued, for issuing the information for down-going synchronous to the new cell to the UE, and it is amended random Access parameter, wherein, the down-going synchronous that is used for is used to refer to the information of the new cell and amended random access parameter Show that the UE is switched to the new cell.
- 11. device according to claim 9, it is characterised in thatThe information for down-going synchronous to the new cell includes at least one of：Master sync signal PSS, auxiliary synchronous letter Number SSS, cell reference signals CRS, system information SI.
- 12. device according to claim 10, it is characterised in that described device also includes：Blocking module, for before the random access parameter is changed, blocking cell residing for the UE.
- 13. a kind of user equipment (UE), it is characterised in that include the cell switching device of any one of claim 7 to 9.
- 14. a kind of base station, it is characterised in that include the cell switching device of any one of claim 10 to 12.
- A kind of 15. system of cell switching, it is characterised in that including：User equipment and claim 14 in claim 13 In base station.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610357225.1A CN107438271A (en) | 2016-05-26 | 2016-05-26 | Method and device, base station, user equipment and the system of cell switching |
| PCT/CN2017/086072 WO2017202378A1 (en) | 2016-05-26 | 2017-05-26 | Cell handover method and apparatus, base station, user equipment and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610357225.1A CN107438271A (en) | 2016-05-26 | 2016-05-26 | Method and device, base station, user equipment and the system of cell switching |
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| CN107438271A true CN107438271A (en) | 2017-12-05 |
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| US20090047955A1 (en) * | 2007-08-14 | 2009-02-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Automated and seamless change of reporting cell identity |
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| WO2017202378A1 (en) | 2017-11-30 |
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Application publication date: 20171205 |