CN104994548B - A kind of switching method in LTE system and base station - Google Patents
A kind of switching method in LTE system and base station Download PDFInfo
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- CN104994548B CN104994548B CN201510409690.0A CN201510409690A CN104994548B CN 104994548 B CN104994548 B CN 104994548B CN 201510409690 A CN201510409690 A CN 201510409690A CN 104994548 B CN104994548 B CN 104994548B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—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
- H04W36/0085—Hand-off measurements
- H04W36/0094—Definition of hand-off measurement parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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Abstract
The embodiment of the invention discloses in a kind of LTE system switching method and base station, be related to field of communication technology, it is ensured that UE switching after downlink data rate be more than UE switching before downlink data rate, to improve user experience.Concrete scheme is：The base station of serving cell obtains the first SINR；The base station obtains the 2nd SINR；The base station obtains the number of the number of the available RB of serving cell and the available RB of first community；The base station determines the data rate of the downlinks of UE in the serving cells according to the number of the first SINR and the available RB of serving cell, and the data rate of downlinks of the UE in first community is determined according to the number of the 2nd SINR and the available RB of first community；If UE is more than UE in the data rate of the downlink of serving cell in the data rate of the downlink of first community, which switches to first community by UE from serving cell.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of long term evolution (English：Long Term Evolution,
Abbreviation：LTE) switching method in system and base station.
Background technology
Due to the limited coverage area of each cell in LTE system, when user equipment (English：User Equipment, contracting
It writes：When UE) being moved to the edge of serving cell, UE may be continuously decreased in the signal quality of serving cell, in order to ensure UE
It can normally communicate, need UE switching to the better adjacent cell of signal quality from serving cell.
In LTE system, user gets over the demand of data service (such as browse webpage, download song, foradownloaded video)
Come bigger, the quality of service of data service is mainly influenced by the quality of downlink, and the quality of uplink is to data service
Quality of service influence little, therefore, concern is primarily with the quality of downlink for existing switching method.In LTE system often
A kind of switching method is based on Reference Signal Received Power (English：Reference Signal Receiving Power,
Abbreviation：RSRP switching method).This method includes：UE measures the RSRP of serving cell and the RSRP of adjacent cell respectively, and will survey
Amount result is reported to the base station of serving cell；The base station of serving cell is carried out according to the RSRP of serving cell and the RSRP of adjacent cell
Judgement, it is determined whether switch over.Specifically, when the RSRP of adjacent cell is more than the RSRP of serving cell, the base of serving cell
It stands and UE is switched into adjacent cell from serving cell；When the RSRP of adjacent cell be less than or equal to serving cell RSRP when, UE without
Switching.
But there are the following problems for the above method：RSRP is only capable of the signal strength of reflection downlink, and for data industry
Business, user are more concerned with the data rate of downlink, and the data rate of downlink is in addition to strong with the signal of downlink
Spend it is related, also and the intensity of interference signal, free system resources number etc. related, big RSRP cell, the number of downlink
Not necessarily big according to rate, therefore, the size of RSRP cannot reflect the size of the data rate of downlink, be according to RSRP determinations
No to switch over, the data rate that may result in the downlink after UE switchings is less than the data of the downlink before UE switchings
Rate, it is poor so as to cause user experience.
Invention content
The embodiment of the present invention provides switching method and base station in a kind of LTE system, it is ensured that under after UE switchings
The data rate of line link is more than the data rate of the downlink before UE switchings, to improve user experience.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that：
The embodiment of the present invention in a first aspect, a kind of switching method in providing long term evolution LTE system, including：
It is what user equipment (UE) measurement obtained that the base station of serving cell, which obtains the first Signal to Interference plus Noise Ratio SINR, the first SINR,
The SINR of the serving cell；
The base station obtains the 2nd SINR, and the 2nd SINR is the SINR for the first community that the UE measurements obtain, institute
It is adjacent cell to state first community；
The base station obtains the number of the available resource block RB of the serving cell and the available RB's of the first community
Number；
The base station determines the UE described according to the number of the first SINR and the available RB of the serving cell
The data rate of downlink in serving cell, and according to the number of the 2nd SINR and the available RB of the first community
Determine the data rate of downlinks of the UE in the first community；
If the UE is more than the UE in the serving cell in the data rate of the downlink of the first community
The data rate of downlink, then the base station UE is switched into the first community from the serving cell.
With reference to first aspect, in the first possible realization method of first aspect, the base station of the serving cell is obtained
The first Signal to Interference plus Noise Ratio SINR is taken, including：
The base station sends first to the UE and measures message, and the first measurement message is used to indicate the UE and measures institute
State the SINR of serving cell；
The base station receives the first measurement result that the UE is sent, and includes described first in first measurement result
SINR, the first SINR are the SINR for the serving cell that the UE measurements obtain.
The possible realization method of with reference to first aspect the first, in second of possible realization method of first aspect
In, the base station obtains the 2nd SINR, including：
If the first SINR is less than or equal to measure thresholding, the base station sends second to the UE and measures message, institute
It states the second measurement message and is used to indicate the SINR that the UE measures second community, described second measures in message comprising described second
The mark and handoff threshold of cell, the second community are adjacent cell to be measured；
The base station receives the second measurement result that the UE is reported, and includes in second measurement result：Described first
The mark of cell and the 2nd SINR, the first community are that SINR is more than in the second community that the UE measurements obtain
The cell of the handoff threshold, the 2nd SINR are the SINR for the first community that the UE measurements obtain.
With reference to first aspect or second of the first possible realization method of first aspect or first aspect possible
Realization method, in the third possible realization method of first aspect, the base station is according to the first SINR and the clothes
The number of the available RB for cell of being engaged in determines the data rate of downlinks of the UE in the serving cell, and according to described
The number of 2nd SINR and the available RB of the first community determine the number of downlinks of the UE in the first community
According to rate, including：
The first mapping table is searched in the base station according to the number of the first SINR and the available RB of the serving cell,
The first data rate is obtained, first data rate is the data speed of downlinks of the UE in the serving cell
Rate；
The base station first mapping is searched according to the number of the 2nd SINR and the available RB of the first community
Table, obtains the second data rate, and second data rate is the data of downlinks of the UE in the first community
Rate；
Wherein, first mapping table is the mapping table pre-saved in the base station, and first mapping table is for referring to
Show SINR, the correspondence between the number and data rate of RB can be used.
Second of possible realization method with reference to first aspect, in the 4th kind of possible realization method of first aspect
In, the switching method further includes：
If the UE is small in the service less than or equal to the UE in the data rate of the downlink of the first community
The data rate of the downlink in area, then the base station measurement thresholding is reduced into preset value, and by the measurement door after reduction
Limit is as new measurement thresholding.
The second aspect of the embodiment of the present invention provides a kind of base station, including：
Acquiring unit is what user equipment (UE) measurement obtained for obtaining the first Signal to Interference plus Noise Ratio SINR, the first SINR
The SINR of the serving cell；
The acquiring unit, is additionally operable to obtain the 2nd SINR, and it is first small that the 2nd SINR is that the UE measurements obtain
The SINR in area, the first community are adjacent cell；
The acquiring unit is additionally operable to obtain the number of the available resource block RB of the serving cell and the first community
Available RB number；
Determination unit, the available RB of the first SINR and the serving cell for being obtained according to the acquiring unit
Number determine the data rate of downlinks of the UE in the serving cell, and obtained according to the acquiring unit
The number of 2nd SINR and the available RB of the first community determine downlinks of the UE in the first community
Data rate；
Switch unit, if for the determination unit determine the UE the first community downlink data
Rate be more than the determination unit determine the UE the serving cell downlink data rate, then by the UE
The first community is switched to from the serving cell.
In conjunction with second aspect, in the first possible realization method of second aspect, the acquiring unit includes：
Sending module measures message for sending first to the UE, and the first measurement message is used to indicate the UE
Measure the SINR of the serving cell；
Receiving module, the first measurement result sent for receiving the UE, comprising described in first measurement result
First SINR, the first SINR are the SINR for the serving cell that the UE measurements obtain.
In conjunction with the first possible realization method of second aspect, in second of possible realization method of second aspect
In, the sending module is less than or equal to measure thresholding if being additionally operable to the first SINR, and sending the second measurement to the UE disappears
Breath, the second measurement message are used to indicate the SINR that the UE measures second community, and described second measures in message comprising institute
The mark and handoff threshold of second community are stated, the second community is adjacent cell to be measured；
The receiving module is additionally operable to receive the second measurement result that the UE is reported, be wrapped in second measurement result
Contain：The mark of the first community and the 2nd SINR, it is described second small that the first community is that the UE measurements obtain
SINR is more than the cell of the handoff threshold in area, and the 2nd SINR is the first community that the UE measurements obtain
SINR。
Second in conjunction with the possible realization method of the first of second aspect or second aspect or second aspect is possible
Realization method, in the third possible realization method of second aspect, the determination unit includes：
Searching module, the available RB of the first SINR and the serving cell for being obtained according to the acquiring unit
Number, search the first mapping table, obtain the first data rate, first data rate is the UE in the serving cell
In downlink data rate；
The searching module is additionally operable to the 2nd SINR obtained according to the acquiring unit and the first community
The number that RB can be used, searches first mapping table, obtains the second data rate, second data rate is the UE in institute
State the data rate of the downlink in first community；
Wherein, first mapping table is the mapping table pre-saved in the base station, and first mapping table is for referring to
Show SINR, the correspondence between the number and data rate of RB can be used.
In conjunction with second of possible realization method of second aspect, in the 4th kind of possible realization method of second aspect
In, the base station further includes：
Updating unit, if for the determination unit determine the UE the first community downlink data
Rate be less than or equal to the determination unit determine the UE the serving cell downlink data rate, then by institute
It states and measures thresholding reduction preset value, and using the measurement thresholding after reduction as new measurement thresholding.
The base station of switching method in LTE system provided in an embodiment of the present invention and base station, serving cell obtains first
SINR；The base station obtains the 2nd SINR；The base station obtains the number of the available RB of serving cell and the available RB of first community
Number；The base station determines the downlinks of UE in the serving cells according to the number of the first SINR and the available RB of serving cell
Data rate, and downlinks of the UE in first community is determined according to the number of the 2nd SINR and the available RB of first community
Data rate；If UE is fast in the data of the downlink of serving cell more than UE in the data rate of the downlink of first community
Rate, then the base station UE is switched into first community from serving cell.
With the switching method in the prior art based on RSRP, the data rate of the downlink after UE switchings may result in
The data rate of downlink before switching less than UE, is compared so as to cause user experience is poor, in switching provided by the embodiment
In method, only when UE the downlink of first community data rate be more than UE the downlink of serving cell data
UE is just switched to first community by rate from serving cell, it is ensured that the data rate of the downlink after UE switchings is more than
The data rate of downlink before UE switchings, to improve user experience.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art
With obtain other attached drawings according to these attached drawings.
Fig. 1 is the flow chart of the switching method in a kind of LTE system provided in an embodiment of the present invention；
Fig. 2 is the flow chart of the switching method in another LTE system provided in an embodiment of the present invention；
Fig. 3 is a kind of composition schematic diagram of base station provided in an embodiment of the present invention；
Fig. 4 is the composition schematic diagram of another base station provided in an embodiment of the present invention；
Fig. 5 is the composition schematic diagram of another base station provided in an embodiment of the present invention；
Fig. 6 is the composition schematic diagram of another base station provided in an embodiment of the present invention；
Fig. 7 is the composition schematic diagram of another base station provided in an embodiment of the present invention；
Fig. 8 is the composition schematic diagram of another base station provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
The embodiment of the present invention provides the switching method in a kind of LTE system, as shown in Figure 1, including：
Base station acquisition the first Signal to Interference plus Noise Ratio (English of S101, serving cell：Signal to Interference plus
Noise Ratio, abbreviation：SINR).
Wherein, serving cell is the cell that UE is currently accessed, and the first SINR is the SINR for the serving cell that UE measurements obtain.
Specifically, the base station can measure message by being sent to UE, to indicate that UE measures and report the first SINR, from
And obtain the first SINR.Base station can also obtain the first SINR by the first SINR of UE active reportings.The embodiment of the present invention
Here the method for obtaining the first SINR to the base station is not especially limited.
S102, the base station obtain the 2nd SINR.
Wherein, the 2nd SINR is the SINR for the first community that UE measurements obtain, and first community is adjacent cell.Specifically, should
Base station can measure message by being sent to UE, to indicate that UE measures and report the 2nd SINR, to obtain the 2nd SINR.
Base station can also obtain the 2nd SINR by the 2nd SINR of UE active reportings.The embodiment of the present invention here obtains the base station
The method of 2nd SINR is not especially limited.
S103, the base station obtain the available resource block (English of serving cell：Resource Block, abbreviation：RB)
The number of number and the available RB of first community.
In LTE system, on frequency domain, 1 RB is that the subcarrier for being 15kHz by 12 bandwidth forms, in the time domain,
1 RB is 1 time slot (0.5ms).
In this step, base station can carry out information exchange by the base station of X2 interface and first community, small to obtain first
The number of the available RB in area.
Under S104, the base station determine UE in the serving cells according to the number of the first SINR and the available RB of serving cell
The data rate of line link, and under determining UE in first community according to the number of the 2nd SINR and the available RB of first community
The data rate of line link.
Wherein, which can calculate according to the number of the first SINR and the available RB of serving cell in conjunction with shannon formula
The data rate of the downlinks of UE in the serving cells, can also be according to reflecting between the number and data rate of SINR, RB
Firing table calculates the data rate of the downlinks of UE in the serving cells, wherein different equipment production firms can specify that not
Mapping table between the number and data rate of same SINR, RB.
The base station determines downlink chains of the UE in first community according to the number of the 2nd SINR and the available RB of first community
The method of the data rate on road determines that UE is small in service with the base station according to the number of the first SINR and the available RB of serving cell
The data rate of downlink in area is identical, and which is not described herein again for the present embodiment.
If S105, UE the downlink of first community data rate be more than UE the downlink of serving cell number
According to rate, then UE is switched to first community by the base station from serving cell.
The base station of switching method in LTE system provided in this embodiment, serving cell obtains the first SINR；It obtains the base station
Take the 2nd SINR；The base station obtains the number of the number of the available RB of serving cell and the available RB of first community；The base station root
The data rate of the downlinks of UE in the serving cells, and root are determined according to the number of the first SINR and the available RB of serving cell
The data rate of downlinks of the UE in first community is determined according to the number of the 2nd SINR and the available RB of first community；If UE
It is more than UE in the data rate of the downlink of serving cell in the data rate of the downlink of first community, then the base station will
UE switches to first community from serving cell.
With the switching method in the prior art based on RSRP, the data rate of the downlink after UE switchings may result in
The data rate of downlink before switching less than UE, is compared so as to cause user experience is poor, in switching provided by the embodiment
In method, only when UE the downlink of first community data rate be more than UE the downlink of serving cell data
UE is just switched to first community by rate from serving cell, it is ensured that the data rate of the downlink after UE switchings is more than
The data rate of downlink before UE switchings, to improve user experience.
Embodiment 2
The embodiment of the present invention provides the switching method in a kind of LTE system, as shown in Fig. 2, including：
S201, base station send first to UE and measure message, and the first measurement message is used to indicate UE and measures serving cell
SINR。
Wherein, which is the base station of serving cell, and serving cell is the cell that UE is currently accessed.
S202, base station receive the first measurement result that UE is sent, and include the first SINR, the first SINR in the first measurement result
For the SINR for the serving cell that UE measurements obtain.
If S203, the first SINR are less than or equal to measure thresholding, base station sends second to UE and measures message.
Wherein, it is preset one value to measure thresholding, can be indicated with α.Second measurement message is used to indicate UE and measures the
The SINR of two cells, second measures the mark and handoff threshold for including second community in message, and second community is neighbour to be measured
Cell.Adjacent cell to be measured can include multiple cells.
Further, base station can carry out information exchange by the base station of X2 interface and second community, small to obtain second
Configuration information (Time-Frequency Information for the RB that e.g., downlink reference signal occupies, the hair of downlink reference signal of the downlink reference signal in area
Send period etc.).It can also include the configuration of the downlink reference signal of second community in the second measurement message that base station is sent to UE
Information.UE is solved according to the configuration information of the downlink reference signal of second community on the occupied RB of downlink reference signal
It adjusts, the intensity of the downlink reference signal of second community and the intensity of interference signal can be obtained, so as to obtain second community
SINR.
S204, base station receive the second measurement result that UE is reported.
Wherein, include in the second measurement result：The mark of first community and the 2nd SINR, first community are that UE measurements obtain
Second community in SINR be more than the cell of handoff threshold, the 2nd SINR is the SINR of first community that UE measurements obtain, switching
Thresholding is preset one value, can be indicated with β.
It should be noted that second community can include multiple cells, first community belongs to second community, and first community can
With comprising a cell, first community can also include multiple cells.
S205, base station obtain the number of the number of the available RB of serving cell and the available RB of first community.
In this step, base station can carry out information exchange by the base station of X2 interface and first community, small to obtain first
The number of the available RB in area.
S206, base station search the first mapping table, obtain first according to the number of the first SINR and the available RB of serving cell
Data rate, the first data rate are the data rate of the downlinks of UE in the serving cells.
Wherein, the first mapping table is the mapping table pre-saved in base station, and the first mapping table is used to indicate SINR, can use RB
Number and data rate between correspondence.Different equipment production firms can specify that the number of different SINR, RB
Mapping table between data rate.
S207, base station search the first mapping table, obtain second according to the number of the 2nd SINR and the available RB of first community
Data rate, the second data rate are the data rate of downlinks of the UE in first community.
S208, base station judge whether the second data rate is more than the first data rate.
If the second data rate is more than the first data rate, S209 is executed；If the second data rate is less than or equal to first
Data rate then executes S210.
UE is switched to first community by S209, base station from serving cell.
It should be noted that if there are multiple cells to meet the second data rate more than the first data speed in first community
Rate, then base station UE can be switched to from serving cell to any one cell in multiple cell.
S210, base station will measure thresholding reduction preset value, and using the measurement thresholding after reduction as new measurement thresholding.
Wherein, preset value can be expressed as △, and new measurement thresholding can be expressed as α ', α '=α-△.
After S210, S201-S208 can be repeated.
Switching method in LTE system provided in this embodiment, only when the first SINR is less than or equal to measure thresholding, base
It stands and just sends the second measurement message to UE, to indicate that UE measures the SINR of second community, the pendulous frequency of UE can be reduced in this way,
To save system resource.Also, in switching method provided by the embodiment, only when UE is in the downlink of first community
Data rate is more than UE in the data rate of the downlink of serving cell, and UE is just switched to first community from serving cell,
The data rate that can ensure the downlink that the data rate of the downlink after UE switchings is more than before UE switchings, to improve
User experience.If in addition, the second data rate be less than or equal to the first data rate, UE will not be switched over, at this moment if
UE continues to measure the SINR of second community, and finally obtained result still may be less than or equal to the first number by the second data rate
According to rate, in this way, the SINR for frequently measuring second community can largely consume the electricity of UE.Using the switching method of the present embodiment,
If the second data rate is less than or equal to the first data rate, base station, which will measure thresholding, reduces preset value, and by the survey after reduction
Thresholding is measured as new measurement thresholding, in this way, only when the SINR of serving cell decline certain values, and meet serving cell
When SINR is less than or equal to new measurement thresholding, UE just continues to measure the SINR of second community, can be reduced in this way to UE electricity
Consumption.
Embodiment 3
The embodiment of the present invention provides a kind of base station, as shown in figure 3, may include：It acquiring unit 31, determination unit 32 and cuts
Change unit 33.
Acquiring unit 31, for obtaining the first SINR, the first SINR is the SINR for the serving cell that UE measurements obtain.
Acquiring unit 31 is additionally operable to obtain the 2nd SINR, and the 2nd SINR is the SINR for the first community that UE measurements obtain, the
One cell is adjacent cell.
Acquiring unit 31 is additionally operable to obtain the number of the available RB of the number of the available RB of serving cell and first community.
The number of determination unit 32, the available RB of the first SINR and serving cell for being obtained according to acquiring unit 31 is true
Determine the data rate of the downlinks of UE in the serving cells, and according to the 2nd SINR and first community of the acquisition of acquiring unit 31
The number of available RB determine the data rate of downlinks of the UE in first community.
Switch unit 33, for if it is determined that the UE that unit 32 determines is more than in the data rate of the downlink of first community
It is small then to be switched to first in the data rate of the downlink of serving cell by the UE that determination unit 32 determines from serving cell by UE
Area.
Further, as shown in figure 4, acquiring unit 31 includes：Sending module 311 and receiving module 312.
Sending module 311 measures message for sending first to UE, and it is small that the first measurement message is used to indicate UE measurement services
The SINR in area.
Receiving module 312, the first measurement result for receiving UE transmissions include the first SINR in the first measurement result,
First SINR is the SINR for the serving cell that UE measurements obtain.
Further, sending module 311 are less than or equal to measure thresholding, second are sent to UE if being additionally operable to the first SINR
Message is measured, the second measurement message is used to indicate the SINR that UE measures second community, and second measures in message comprising second community
Mark and handoff threshold, second community be adjacent cell to be measured.
Receiving module 312 is additionally operable to receive the second measurement result that UE is reported, includes in the second measurement result：First is small
The mark in area and the 2nd SINR, first community are the cell that SINR is more than handoff threshold in the second community that UE measurements obtain, the
Two SINR are the SINR for the first community that UE measurements obtain.
Further, as shown in figure 5, determination unit 32 includes：Searching module 321.
Searching module 321, the number of the available RB of the first SINR and serving cell for being obtained according to acquiring unit 31,
The first mapping table is searched, the first data rate is obtained, the first data rate is the data of the downlinks of UE in the serving cells
Rate.
Searching module 321 is additionally operable to of the available RB of the 2nd SINR and first community that are obtained according to acquiring unit 31
Number searches the first mapping table, obtains the second data rate, and the second data rate is the number of downlinks of the UE in first community
According to rate.
Wherein, the first mapping table is the mapping table pre-saved in base station, and the first mapping table is used to indicate SINR, can use RB
Number and data rate between correspondence.
Further, as shown in fig. 6, the base station in the embodiment of the present invention further includes：Updating unit 34.
Updating unit 34, for if it is determined that the UE that unit 32 determines is less than in the data rate of the downlink of first community
Equal to determination unit 32 determine UE serving cell downlink data rate, then will measure thresholding reduce preset value,
And using the measurement thresholding after reduction as new measurement thresholding.
It should be noted that the specific descriptions of part function module can refer to side in base station provided in an embodiment of the present invention
Corresponding content in method embodiment, the present embodiment are no longer described in detail here.
Base station provided in an embodiment of the present invention, acquiring unit 31 obtain the first SINR, obtain the 2nd SINR, and it is small to obtain service
The number of the number of the available RB in area and the available RB of first community；Determination unit 32 can according to the first SINR and serving cell
Determine the data rate of the downlinks of UE in the serving cells with the number of RB, and according to the 2nd SINR and first community can
The data rate of downlinks of the UE in first community is determined with the number of RB；If UE is in the number of the downlink of first community
It is more than UE in the data rate of the downlink of serving cell according to rate, then UE is switched to the by switch unit 33 from serving cell
One cell.
With the switching method in the prior art based on RSRP, the data rate of the downlink after UE switchings may result in
The data rate of downlink before switching less than UE, is compared, use is provided in this embodiment so as to cause user experience is poor
It is fast in the data of the downlink of serving cell to be only more than UE as UE in the data rate of the downlink of first community for base station
UE is just switched to first community by rate from serving cell, it is ensured that the data rate of the downlink after UE switchings is more than UE
The data rate of downlink before switching, to improve user experience.
Embodiment 4
The embodiment of the present invention provides a kind of base station, as shown in fig. 7, may include：Processor 41.
Processor 41, for obtaining the first SINR, the first SINR is the SINR for the serving cell that UE measurements obtain；Obtain the
Two SINR, the 2nd SINR are the SINR for the first community that UE measurements obtain, and first community is adjacent cell；Obtain serving cell can
With the number of the available RB of the number and first community of RB；UE is determined according to the number of the first SINR and the available RB of serving cell
The data rate of downlink in the serving cells, and UE is determined according to the number of the 2nd SINR and the available RB of first community
The data rate of downlink in first community；If UE is taking in the data rate of the downlink of first community more than UE
The data rate of the downlink for cell of being engaged in, then switch to first community by UE from serving cell.
Wherein, processor 41 can be the control centre of base station, such as central processing unit (English：Central
Processing Unit, abbreviation：CPU), or CPU, image processor (English：Graphic Processing
Unit, abbreviation：GPU), digital signal processor (English：Digital Signal Processor, abbreviation：DSP it) and communicates
The combination of control chip (such as baseband chip) in unit.In embodiments of the present invention, CPU can be single operation core,
It can also include multioperation core.
Further, as shown in figure 8, the base station in the present embodiment further includes：Transmitter 42, receiver 43 and memory
44.Processor 41, transmitter 42, receiver 43 are connected by bus with memory 44 and complete mutual communication.
Wherein, bus can be industry standard architecture (English：Industry Standard Architecture,
Abbreviation：ISA) bus, external equipment interconnection (English：Peripheral Component Interconnect, abbreviation：PCI) total
Line or extended industry-standard architecture (English：Extended Industry Standard Architecture, abbreviation：
EISA) bus etc..The bus can be divided into address bus, data/address bus, controlling bus etc..For ease of indicating, only with one in Fig. 8
Bar thick line indicates, it is not intended that an only bus or a type of bus.
Transmitter 42 measures message for sending first to UE, and the first measurement message is used to indicate UE and measures serving cell
SINR.
Receiver 43, the first measurement result for receiving UE transmissions includes the first SINR in the first measurement result, and first
SINR is the SINR for the serving cell that UE measurements obtain.
Memory 44, for storing the first SINR, the 2nd SINR, the number of available RB of serving cell, first community
Downlink of the data rate and UE of number, the downlinks of UE in the serving cells that RB can be used in first community
Data rate etc..
Further, transmitter 42, are less than or equal to measure thresholding if being additionally operable to the first SINR, and sending second to UE measures
Message, the second measurement message are used to indicate the SINR that UE measures second community, the mark of second community are included in the second measurement message
Know and handoff threshold, second community are adjacent cell to be measured.
Receiver 43 is additionally operable to receive the second measurement result that UE is reported, includes in the second measurement result：First community
Mark and the 2nd SINR, first community are the cell that SINR is more than handoff threshold in the obtained second community of UE measurements, second
SINR is the SINR for the first community that UE measurements obtain.
Further, processor 41 are additionally operable to the number of the available RB according to the first SINR and serving cell, search first
Mapping table, obtains the first data rate, and the first data rate is the data rate of the downlinks of UE in the serving cells；According to
The number of 2nd SINR and the available RB of first community search the first mapping table, obtain the second data rate, the second data rate
The data rate for the downlink for being UE in first community.
Wherein, the first mapping table is the mapping table pre-saved in base station, and the first mapping table is used to indicate SINR, can use RB
Number and data rate between correspondence.
Further, processor 41, if be additionally operable to UE is less than or equal to UE in the data rate of the downlink of first community
In the data rate of the downlink of serving cell, then will measure thresholding reduces preset value, and the measurement thresholding after reduction is made
For new measurement thresholding.
It should be noted that the specific descriptions of part function module can refer to side in base station provided in an embodiment of the present invention
Corresponding content in method embodiment, the present embodiment are no longer described in detail here.
Base station provided in an embodiment of the present invention, processor 41 obtain the first SINR, obtain the 2nd SINR, obtain serving cell
Available RB number and first community available RB number；Number according to the first SINR and the available RB of serving cell is true
Determine the data rate of the downlinks of UE in the serving cells, and true according to the number of the 2nd SINR and the available RB of first community
Determine the data rate of downlinks of the UE in first community；If UE is more than UE in the data rate of the downlink of first community
In the data rate of the downlink of serving cell, then UE is switched into first community from serving cell.
With the switching method in the prior art based on RSRP, the data rate of the downlink after UE switchings may result in
The data rate of downlink before switching less than UE, is compared, use is provided in this embodiment so as to cause user experience is poor
It is fast in the data of the downlink of serving cell to be only more than UE as UE in the data rate of the downlink of first community for base station
UE is just switched to first community by rate from serving cell, it is ensured that the data rate of the downlink after UE switchings is more than UE
The data rate of downlink before switching, to improve user experience.
Through the above description of the embodiments, it is apparent to those skilled in the art that, for description
It is convenienct and succinct, only the example of the division of the above functional modules, in practical application, can as needed and will be upper
It states function distribution to be completed by different function modules, i.e., the internal structure of device is divided into different function modules, to complete
All or part of function described above.The specific work process of the system, apparatus, and unit of foregoing description, before can referring to
The corresponding process in embodiment of the method is stated, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the module or
The division of unit, only a kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units
Or component can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, institute
Display or the mutual coupling, direct-coupling or communication connection discussed can be by some interfaces, device or unit
INDIRECT COUPLING or communication connection can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can be stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) or processor (English：Processor this hair) is executed
The all or part of step of bright each embodiment the method.And storage medium above-mentioned includes：USB flash disk, read-only is deposited mobile hard disk
Reservoir (English：Read-Only Memory, abbreviation：ROM), random access memory (English：Random Access
Memory, abbreviation：RAM), the various media that can store program code such as magnetic disc or CD.
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 based on the protection scope of the described claims.
Claims (10)
1. the switching method in a kind of long term evolution LTE system, which is characterized in that including：
The first Signal to Interference plus Noise Ratio of base station the acquisition SINR, the first SINR of serving cell obtain described for user equipment (UE) measurement
The SINR of serving cell；
The base station obtains the 2nd SINR, and the 2nd SINR is the SINR for the first community that the UE measurements obtain, and described the
One cell is adjacent cell；
The base station obtains the number of the number of the available resource block RB of the serving cell and the available RB of the first community；
The base station determines the UE in the service according to the number of the first SINR and the available RB of the serving cell
The data rate of downlink in cell, and determined according to the number of the 2nd SINR and the available RB of the first community
The data rate of downlinks of the UE in the first community；
If the UE the downlink of the first community data rate be more than the UE the serving cell downlink
The data rate of link, then the base station UE is switched into the first community from the serving cell.
2. switching method according to claim 1, which is characterized in that the base station of the serving cell obtains first and believes dry make an uproar
Than SINR, including：
The base station sends first to the UE and measures message, and the first measurement message is used to indicate the UE and measures the clothes
The SINR for cell of being engaged in；
The base station receives the first measurement result that the UE is sent, and includes the first SINR in first measurement result,
First SINR is the SINR for the serving cell that the UE measurements obtain.
3. switching method according to claim 2, which is characterized in that the base station obtains the 2nd SINR, including：
If the first SINR is less than or equal to measure thresholding, the base station sends second to the UE and measures message, described the
Two measurement message are used to indicate the SINR that the UE measures second community, and described second measures in message comprising the second community
Mark and handoff threshold, the second community be adjacent cell to be measured；
The base station receives the second measurement result that the UE is reported, and includes in second measurement result：The first community
Mark and the 2nd SINR, the first community be in the obtained second community of the UE measurements SINR be more than it is described
The cell of handoff threshold, the 2nd SINR are the SINR for the first community that the UE measurements obtain.
4. switching method according to any one of claim 1-3, which is characterized in that the base station is according to described first
The number of the available RB of SINR and the serving cell determines the data speed of downlinks of the UE in the serving cell
Rate, and determine the UE in the first community according to the number of the 2nd SINR and the available RB of the first community
The data rate of downlink, including：
The first mapping table is searched, is obtained according to the number of the first SINR and the available RB of the serving cell in the base station
First data rate, first data rate are the data rate of downlinks of the UE in the serving cell；
First mapping table is searched in the base station according to the number of the 2nd SINR and the available RB of the first community,
The second data rate is obtained, second data rate is the data speed of downlinks of the UE in the first community
Rate；
Wherein, first mapping table is the mapping table pre-saved in the base station, and first mapping table is used to indicate
SINR, the correspondence between the number and data rate of RB can be used.
5. switching method according to claim 3, which is characterized in that the switching method further includes：
If the UE is less than or equal to the UE in the serving cell in the data rate of the downlink of the first community
The data rate of downlink, then the measurement thresholding is reduced preset value by the base station, and the measurement thresholding after reduction is made
For new measurement thresholding.
6. a kind of base station, which is characterized in that including：
Acquiring unit is the service that user equipment (UE) measurement obtains for obtaining the first Signal to Interference plus Noise Ratio SINR, the first SINR
The SINR of cell；
The acquiring unit is additionally operable to obtain the 2nd SINR, and the 2nd SINR is the first community that the UE measurements obtain
SINR, the first community are adjacent cell；
The acquiring unit, be additionally operable to obtain the number of the available resource block RB of the serving cell and the first community can
With the number of RB；
Determination unit, of the available RB of the first SINR and the serving cell for being obtained according to the acquiring unit
Number determines the data rate of downlinks of the UE in the serving cell, and according to described in acquiring unit acquisition
The number of 2nd SINR and the available RB of the first community determine the number of downlinks of the UE in the first community
According to rate；
Switch unit, if for the determination unit determine the UE the first community downlink data rate
The UE determined more than the determination unit the downlink of the serving cell data rate, then by the UE from institute
It states serving cell and switches to the first community.
7. base station according to claim 6, which is characterized in that the acquiring unit includes：
Sending module measures message for sending first to the UE, and the first measurement message is used to indicate the UE and measures
The SINR of the serving cell；
Receiving module, the first measurement result sent for receiving the UE include described first in first measurement result
SINR, the first SINR are the SINR for the serving cell that the UE measurements obtain.
8. base station according to claim 7, which is characterized in that the sending module, if it is small to be additionally operable to the first SINR
In equal to thresholding is measured, then sends second to the UE and measure message, the second measurement message is used to indicate the UE and measures
The SINR of second community, described second measures the mark and handoff threshold for including the second community in message, and described second is small
Area is adjacent cell to be measured；
The receiving module is additionally operable to receive the second measurement result that the UE is reported, includes in second measurement result：Institute
The mark of first community and the 2nd SINR are stated, the first community is in the second community that the UE measurements obtain
SINR is more than the cell of the handoff threshold, and the 2nd SINR is the SINR for the first community that the UE measurements obtain.
9. according to the base station described in any one of claim 6-8, which is characterized in that the determination unit includes：
Searching module, of the available RB of the first SINR and the serving cell for being obtained according to the acquiring unit
Number searches the first mapping table, obtains the first data rate, and first data rate is the UE in the serving cell
The data rate of downlink；
The searching module is additionally operable to the available of the 2nd SINR obtained according to the acquiring unit and the first community
The number of RB searches first mapping table, obtains the second data rate, and second data rate is the UE described the
The data rate of downlink in one cell；
Wherein, first mapping table is the mapping table pre-saved in the base station, and first mapping table is used to indicate
SINR, the correspondence between the number and data rate of RB can be used.
10. base station according to claim 8, which is characterized in that the base station further includes：
Updating unit, if for the determination unit determine the UE the first community downlink data rate
Less than or equal to the determination unit determine the UE the serving cell downlink data rate, then by the survey
Measuring thresholding reduces preset value, and using the measurement thresholding after reduction as new measurement thresholding.
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| CN114928867B (en) * | 2022-06-21 | 2023-08-29 | 中国联合网络通信集团有限公司 | Cell switching method, device, electronic equipment and storage medium |
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| CN101877877A (en) * | 2009-04-28 | 2010-11-03 | 大唐移动通信设备有限公司 | Method and equipment for reporting measurement information |
| CN102740386A (en) * | 2012-06-20 | 2012-10-17 | 中兴通讯股份有限公司 | Cell switching method and base station |
| CN102958121A (en) * | 2012-11-09 | 2013-03-06 | 大唐移动通信设备有限公司 | Cell switching method and device |
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| US9288735B2 (en) * | 2012-12-21 | 2016-03-15 | Samsung Electronics Co., Ltd. | Apparatus and method for switching radio access technology in wireless communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877877A (en) * | 2009-04-28 | 2010-11-03 | 大唐移动通信设备有限公司 | Method and equipment for reporting measurement information |
| CN102740386A (en) * | 2012-06-20 | 2012-10-17 | 中兴通讯股份有限公司 | Cell switching method and base station |
| CN102958121A (en) * | 2012-11-09 | 2013-03-06 | 大唐移动通信设备有限公司 | Cell switching method and device |
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