CN108260136A - A kind of different-frequency measure control method and device - Google Patents
A kind of different-frequency measure control method and device Download PDFInfo
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- CN108260136A CN108260136A CN201611250057.2A CN201611250057A CN108260136A CN 108260136 A CN108260136 A CN 108260136A CN 201611250057 A CN201611250057 A CN 201611250057A CN 108260136 A CN108260136 A CN 108260136A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W36/06—Reselecting a communication resource in the serving access point
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Abstract
This application involves network technique field more particularly to a kind of different-frequency measure control method and device, to solve the problems, such as the promptness in the prior art that can not ensure alien frequencies switching or cause the loss of UE uplink and downlinks service rate excessive；This method includes：Network side equipment is established RRC with UE and is connect；Based on RRC connections, the first measurement configuration information and the second measurement configuration information are issued to UE；The first measurement event met in first measurement configuration information comprising UE when being moved to serving cell center position for co-sited alien frequencies adjacent area startup different-frequency measure, the first measurement event refer to that the serving cell signal intensity of UE is higher than the first threshold value；The second measurement event met in second measurement configuration information comprising UE when being moved to serving cell edge direction for different station alien frequencies adjacent area startup different-frequency measure；Second measurement event refers to the serving cell signal intensity of UE less than the second threshold value, and the first threshold value is more than the second threshold value.
Description
Technical field
The present invention relates to network technique field more particularly to a kind of different-frequency measure control method and device.
Background technology
With the gradual expansion of long term evolution (Long Term Evolution, LTE) network size, using inter-frequency networking
The LTE network of form is more and more universal.
At present, in the LTE network under inter-frequency networking form, user equipment (User Equipment, UE) is being moved through
Cheng Zhongruo from current serving cell switch to frequency point different neighboring community when, need to be realized using alien frequencies switching control strategy
Above-mentioned alien frequencies handoff procedure.And in existing alien frequencies switching control strategy, generally using A2 events (in LTE specification standard agreement
It is middle A2 events are defined as serving cell signal intensity less than an absolute thresholding) startup different-frequency measure is controlled, using A4 things
Part (A4 events are defined as adjacent cell quality higher than an absolute thresholding in LTE specification standard agreement) is held as switch decision
Act part.As shown in Figure 1, the method flow diagram to realize alien frequencies switching using A2 events and A4 events in the prior art,
Include the following steps：
Step 1：UE sets up wireless heterogeneous networks (Radio with base station (Evolved Node-B, eNodeB)
Resource Control, RRC) connection.
Step 2：The measurement that eNodeB issues A2 events to UE controls instruction.
Step 3：UE measures the signal strength of current service cell after the measurement control instruction for receiving A2 events,
It prescribes a time limit in the signal strength for measuring current service cell less than preset absolute door, A2 affair reports is reported to eNodeB
It accuses.
Step 4：ENodeB will continue to issue A4 affairs to UE after the A2 event measurement reports that UE is reported are received
Control instruction.
Step 5：UE measures the signal strength of adjacent alien-frequency district, is surveying after the control instruction of A4 affairs is received
The signal strength of adjacent alien-frequency district is measured higher than after preset absolute thresholding, A4 event measurement reports are reported to eNodeB.
Step 6：ENodeB switches over judgement and triggers subsequent switching stream after A4 event measurement reports are received
Journey.
It is above-mentioned that the mode of different-frequency measure is started based on A2 events, UE is moved to cell edge, it is small by current service
The scene that area switches to the adjacent alien-frequency district in periphery can be applicable in.But for co-sited alien-frequency district (i.e. in same site
On be deployed with the cells of multiple frequency ranges) for, due to operator can in the cell the heart and neighboring area be respectively configured it is different
Frequency carrying strategy, then, when UE to center of housing estate move, when needing to switch to the alien frequencies adjacent area of center of housing estate bearer service,
It will appear problems with：
Problem one：UE is after the measurement control instruction for receiving A2 events, since the signal strength of center of housing estate is preferable,
The signal strength measured can be difficult to the startup different-frequency measure condition for reaching A2 events, and UE will not report A2 events to survey to eNodeB
Amount report, will not enable subsequent different-frequency measure flow.Center of housing estate bearer service can not be switched in time so as to cause UE
Alien frequencies adjacent area；
If in order to overcome the above problem, the absolute thresholding of A2 events is set as a higher threshold value, then can be deposited again
In Second Problem, i.e.,：
Problem two：Since all terminals in co-sited alien-frequency district can receive the A2 affair controls that eNodeB issues
System instruction sets an excessively high threshold value if A2 events, then need not be to center of housing estate alien frequencies adjacent area in cell edge
The signal strength that the UE of switching is measured can easily reach the startup different-frequency measure condition of A2 events, further on eNodeB
It reports A2 event measurement reports, and starts different-frequency measure after the A4 affairs control instruction that eNodeB issues is received.Due to
When starting different-frequency measure, eNodeB can be reconfigured signaling by RRC and a different-frequency measure gap is configured for UE namely measures
GAP (it is that UE leaves the time that signal measurement is carried out in the cell to other frequency point cells of current frequency point here, to measure GAP),
During this, eNodeB will not distribute business datum to user, therefore after different-frequency measure startup, eNodeB distributes to the business of UE
Data are reduced, and are declined excessively so as to cause the uplink and downlink service rate of UE.
It can be seen that when alien frequencies adjacent area from UE to center of housing estate movement carry out alien frequencies switching when, in order to ensure UE can and
When be switched to the alien frequencies adjacent area of center of housing estate, should one higher threshold value be set for A2 events as far as possible；But it is set for A2 events
Higher threshold value is put, moves the scene for carrying out alien frequencies switching to periphery alien frequencies adjacent area for UE, can prematurely be entered because of UE different
Frequency measuring state, cause UE uplink and downlink service rate decline it is excessive.
Based on this, in the prior art for different alien frequencies handoff scenarios, using existing alien frequencies switching control strategy come
Alien frequencies switching is carried out, there is the promptness that can not ensure alien frequencies switching or causes the loss of UE uplink and downlinks service rate is excessive to ask
Topic.
Invention content
The embodiment of the present application provides a kind of different-frequency measure control method and device, to solve nothing in the prior art
The problem of the problem of method ensures the promptness of alien frequencies switching or causes the loss of UE uplink and downlinks service rate excessive.
A kind of different-frequency measure control method provided by the embodiments of the present application, including：
Network side equipment establishes wireless heterogeneous networks (Radio with user equipment (User Equipment, UE)
Resource Control, RRC) connection；
Based on the RRC connections, the first measurement configuration information and the second measurement configuration information are issued to the UE；
Wherein, it is directed to altogether comprising the UE when being moved to serving cell center position in first measurement configuration information
Alien frequencies adjacent area of standing starts the first measurement event for being met of different-frequency measure, and first measurement event refers to that the service of the UE is small
Area's signal strength is higher than the first threshold value；
It is different for different station when being moved to serving cell edge direction comprising the UE in second measurement configuration information
Frequency adjacent area starts the second measurement event that different-frequency measure is met；Second measurement event refers to the serving cell letter of the UE
Number intensity is more than the second threshold value less than the second threshold value, first threshold value.
A kind of different-frequency measure control method that the another embodiment of the application provides, including：
User equipment (UE) is established radio resource control RRC with network side equipment and is connect；
Based on the RRC connections, receive the first measurement configuration information that the network side equipment issues and second and measure and match
Confidence ceases；
Wherein, it is directed to altogether comprising the UE when being moved to serving cell center position in first measurement configuration information
Alien frequencies adjacent area of standing starts the first measurement event for being met of different-frequency measure, and first measurement event refers to that the service of the UE is small
Area's signal strength is higher than the first threshold value；
It is different for different station when being moved to serving cell edge direction comprising the UE in second measurement configuration information
Frequency adjacent area starts the second measurement event that different-frequency measure is met；Second measurement event refers to the serving cell letter of the UE
Number intensity is more than the second threshold value less than the second threshold value, first threshold value.
A kind of different-frequency measure control device provided by the embodiments of the present application, including：
Module is established, is connect for establishing radio resource control RRC with user equipment (UE)；
Sending module for being based on the RRC connections, issues the first measurement configuration information to the UE and the second measurement is matched
Confidence ceases；
Wherein, it is directed to altogether comprising the UE when being moved to serving cell center position in first measurement configuration information
Alien frequencies adjacent area of standing starts the first measurement event for being met of different-frequency measure, and first measurement event refers to that the service of the UE is small
Area's signal strength is higher than the first threshold value；
It is different for different station when being moved to serving cell edge direction comprising the UE in second measurement configuration information
Frequency adjacent area starts the second measurement event that different-frequency measure is met；Second measurement event refers to the serving cell letter of the UE
Number intensity is more than the second threshold value less than the second threshold value, first threshold value.
A kind of different-frequency measure control device that the another embodiment of the application provides, including：
Module is established, is connect for establishing radio resource control RRC with network side equipment；
Receiving module for being based on the RRC connections, receives the first measurement configuration information that the network side equipment issues
With the second measurement configuration information；
Wherein, it is directed to altogether comprising the UE when being moved to serving cell center position in first measurement configuration information
Alien frequencies adjacent area of standing starts the first measurement event for being met of different-frequency measure, and first measurement event refers to that the service of the UE is small
Area's signal strength is higher than the first threshold value；
It is different for different station when being moved to serving cell edge direction comprising the UE in second measurement configuration information
Frequency adjacent area starts the second measurement event that different-frequency measure is met；Second measurement event refers to the serving cell letter of the UE
Number intensity is more than the second threshold value less than the second threshold value, first threshold value.
Using the embodiment of the present application, when UE is moved to serving cell center position, for co-sited alien frequencies adjacent area, Ke Yili
Start different-frequency measure namely when the serving cell signal intensity of measurement is higher than the first thresholding with the first measurement event to trigger UE
Start different-frequency measure, since the signal strength near center of housing estate is higher, UE can be made to be moved near center of housing estate in this way
When initiate different-frequency measure in time, and then switch in the alien frequencies adjacent area of center of housing estate, in addition, due to not having to reuse setting
The A2 events of higher threshold value also avoid starting unnecessary different-frequency measure positioned at the UE of cell edge, so as to effectively
Reduce the loss of UE uplink and downlink service rates.And when UE is moved to serving cell edge direction, for different station alien frequencies adjacent area,
It can trigger UE startup different-frequency measures using the second measurement event namely be less than second in the serving cell signal intensity of measurement
Start different-frequency measure during thresholding, since the signal strength near cell edge is weaker, UE can be made to be moved to cell side in this way
Different-frequency measure is initiated during edge in time, and then is switched in the alien frequencies adjacent area of cell edge.
Description of the drawings
Fig. 1 is the method flow diagram for realizing alien frequencies switching using A2 events and A4 events in the prior art；
Fig. 2 is the different-frequency measure control method flow chart that the embodiment of the present application one provides；
Fig. 3 is the switchover policy definition graph of LTE inter-frequency networking handover events that the embodiment of the present application two provides；
Fig. 4 is the structure diagram of different-frequency measure control device that the embodiment of the present application three provides；
Fig. 5 is the structure diagram of different-frequency measure control device that the embodiment of the present application four provides.
Specific embodiment
In the embodiment of the present application, network side equipment carries the first measuring configuration of the first measurement event by being issued to UE
Information and the second measurement configuration information for carrying the second measurement event, UE to be controlled to start the opportunity of different-frequency measure.Wherein,
First measurement event is used to that UE to be controlled to start different-frequency measure when UE is moved to serving cell center position, and the second measurement event is used
In the control UE startup different-frequency measures when UE is moved to serving cell edge direction.Using the embodiment of the present application, when UE is to service
When center of housing estate direction is moved, for co-sited alien frequencies adjacent area, different-frequency measure can be started using the first measurement event to trigger UE,
Namely start different-frequency measure when the serving cell signal intensity of measurement is higher than the first thresholding, due to the signal near center of housing estate
Intensity is higher, UE can be made to initiate different-frequency measure in time when being moved near center of housing estate in this way, and then switch to positioned at small
In the alien frequencies adjacent area of district center, in addition, due to not having to reuse the A2 events there is provided higher threshold value, also avoid being located at small
The UE of area edge starts unnecessary different-frequency measure, so as to effectively reduce the loss of UE uplink and downlink service rates.And work as UE
When being moved to serving cell edge direction, for different station alien frequencies adjacent area, it is different that UE startups can be triggered using the second measurement event
Frequency measures namely starts different-frequency measure when the serving cell signal intensity of measurement is less than the second thresholding, since cell edge is attached
Near signal strength is weaker, UE can be made to initiate different-frequency measure in time when being moved to cell edge in this way, and then switch to position
In the alien frequencies adjacent area of cell edge.
Embodiment one
As shown in Fig. 2, for the different-frequency measure control method flow chart that the embodiment of the present application one provides, include the following steps：
S201：Evolved Node B (Evolved Node-B, eNodeB) are established RRC with UE and are connect.
S202：ENodeB is based on RRC connections, and the first measurement configuration information and the second measurement configuration information are issued to UE.
Here, it is adjacent for co-sited alien frequencies when being moved to serving cell center position comprising UE in the first measurement configuration information
Area starts the first measurement event for being met of different-frequency measure, and the first measurement event refers to the serving cell signal intensity of UE higher than the
One threshold value；It is opened in second measurement configuration information comprising UE when being moved to serving cell edge direction for different station alien frequencies adjacent area
The second measurement event that dynamic different-frequency measure is met, the second measurement event refer to that the serving cell signal intensity of UE is less than second
Limit value.Wherein, the first threshold value is more than the second threshold value.
Specifically, according to third generation partner program (3rd Generation Partnership Project,
3GPP) the definition in standard agreement to long term evolution (Long Term Evolution, LTE) measurement event, the first measuring configuration
The first measurement event included in information can be identified with A1 events, and second included in the second measurement configuration information measures thing
Part can be identified with A2 events.For the ease of distinguishing, the first measurement event is identified using A1_1 in the embodiment of the present application, the
Two measurement events are identified using A2_2.
In addition, the 5th measurement event also met in the first measurement configuration information comprising UE stopping startup different-frequency measures,
UE is used to indicate after different-frequency measure is started, if meeting the 5th measurement event, stops measuring the signal strength of alien frequencies adjacent area.
Here, the 5th measurement event refers to that the serving cell signal intensity of UE is less than the 5th threshold value.According to right in 3GPP standard agreements
The definition of LTE measurement events can identify the 5th measurement event with A2_1.
The 6th measurement event also met in second measurement configuration information comprising UE stopping different-frequency measures, is used to indicate UE
After different-frequency measure is started, if meeting the 6th measurement event, stop measuring the signal strength of alien frequencies adjacent area.Here, the 6th
Measurement event refers to that the serving cell signal intensity of UE is higher than the 6th threshold value.Thing is measured to LTE according in 3GPP standard agreements
The definition of part can identify the 6th measurement event with A1_2.Wherein, the 5th threshold value is more than the 6th threshold value.Also, the
Five threshold values are less than the first threshold value, and the 6th threshold value is more than the second threshold value.Above four events in the embodiment of the present application
Threshold value is ranked sequentially respectively the first threshold value, the 5th threshold value, the 6th threshold value, the second thresholding according to descending
Value.
In specific implementation, eNodeB can reconfigure signaling by RRC, issued simultaneously to UE and carry A1_1 and A2_1
The first measurement configuration information and carry the second measurement configuration information of A2_1 and A2_2.
S203：UE measures the letter of serving cell after the first measurement configuration information and the second measurement configuration information is received
Number intensity.
If measurement result meets the first measurement event A1_1, step S204~S207 is performed.
If measurement result meets the second measurement event A2_2, step S208~S211 is performed.
Here, UE can be by measuring Reference Signal Received Power (the Reference Signal of serving cell
Receiving Power, RSRP) determine the signal strength of serving cell.
S204：UE reports the first measurement event to report to eNodeB.
Here, meet the first measurement event in measurement result, i.e., in the service quality of the serving cell measured higher than pre-
If the first threshold value when, to eNodeB report the first measurement event report.Such case is suitable for UE to the different of center of housing estate
Under the scene of frequency adjacent area direction movement.
S205：ENodeB issues third measurement configuration information after the report of the first measurement event is received to UE.
Here, third measurement configuration information is used to indicate the signal strength that UE measures alien frequencies adjacent area, and third measurement is matched
The third measurement event met in confidence breath comprising progress cell switching.According in 3GPP standard agreements to LTE measurement events
Definition, third measurement event can be defined as to A3 events or A4 events or A5 events.Wherein, A3 events are defined as adjacent cell
Than serving cell signal intensity higher than a threshold value, A4 events are defined as adjacent cell quality higher than a threshold value, A5 events
It is defined as serving cell signal intensity and is higher than a threshold value 2 less than a threshold value 1 and adjacent cell quality.For the ease of area
Not, third measurement event can be identified with A3_1 or A4_1 or A5_1 in the embodiment of the present application.
S206：UE measures the signal strength of alien frequencies adjacent area, expires in measurement result after third measurement configuration information is received
After the above-mentioned third measurement event of foot, the third measurement event reported to eNodeB is reported.
In specific implementation, UE after the signal strength for measuring alien frequencies adjacent area is started, survey by the third reported to eNodeB
Before the report of amount event, if the service quality of the serving cell measured is less than the 5th threshold value, that is, meet the 5th measurement event
When, then UE can report the 5th measurement event to report to eNodeB.ENodeB, can be to UE after the report of the 5th measurement event is received
The instruction of a stopping different-frequency measure being sent, for informing that UE stops measuring the signal strength of alien frequencies adjacent area.In this case,
UE will not report to third measurement event that eNodeB is reported, i.e., will not triggering following alien frequencies adjacent area handoff procedure.
S207：ENodeB reports that the cell of UE is controlled to switch according to the third measurement event of reception.
Here, the identification information of the alien frequencies adjacent area of measurement is carried in the report of third measurement event.
In specific implementation, the alien frequencies of measurement that eNodeB is carried in being reported according to the third measurement event of reception is adjacent
The identification information in area come determine whether UE carry out cell switching.
Specifically, the identification information of alien frequencies adjacent area that eNodeB is carried in the report of third measurement event is determined is first
After the identification information of designated area, UE is allowed to switch to the first designated area, otherwise, refusal UE carries out cell switching；Wherein, UE
Serving cell and the first designated area belong to same base station or same physics site.
Here, the first designated area can be positioned at the alien frequencies adjacent area of center of housing estate position.If third measurement event is reported
The identification information of the alien frequencies adjacent area of middle carrying is the alien frequencies adjacent area of non-center of housing estate position, then eNodeB refusal UE progress cell is cut
It changes.
S208：UE reports the second measurement event to report to eNodeB.
Here, meet the second measurement event in measurement result, i.e., in the service quality of the serving cell measured less than pre-
If the second threshold value when, to eNodeB report the second measurement event report.Such case is suitable for UE to the different of cell edge
Can be specifically the scene to the alien frequencies adjacent area edge direction movement in different base station under the scene of frequency adjacent area direction movement
Under.
S209：ENodeB issues the 4th measurement configuration information after the report of the second measurement event is received to UE.
Here, the 4th measurement configuration information is used to indicate the signal strength that UE measures alien frequencies adjacent area, and the 4th measurement is matched
The 4th measurement event met in confidence breath comprising progress cell switching.According in 3GPP standard agreements to LTE measurement events
Definition, the 4th measurement event can also be defined as A3 events or A4 events or A5 events.For the ease of difference, the application is real
Applying the 4th measurement event in example can be identified with A3_2 or A4_2 or A5_2.Wherein, the thresholding set in the 4th measurement event
Value may be the same or different with the value of threshold value set in the 5th measurement event.
S210：UE measures the signal strength of alien frequencies adjacent area, expires in measurement result after the 4th measurement configuration information is received
After above-mentioned 4th measurement event of foot, the 4th measurement event reported to eNodeB is reported.
In specific implementation, UE is surveyed after the signal strength for measuring alien frequencies adjacent area is started to the eNodeB is reported the 4th
Before the report of amount event, if the service quality of the serving cell measured is higher than the 6th threshold value, that is, meet the 6th measurement event
When, then UE can report the 6th measurement event to report to eNodeB.ENodeB, can be to UE after the report of the 6th measurement event is received
The instruction of a stopping different-frequency measure being sent, for informing that UE stops measuring the signal strength of alien frequencies adjacent area.In this case,
The report of the 4th measurement event that UE will not be reported to eNodeB, i.e., will not triggering following alien frequencies adjacent area handoff procedure.
S211：ENodeB reports that the cell of UE is controlled to switch according to the 4th measurement event of reception.
Here, the identification information of the alien frequencies adjacent area of measurement is also carried in the report of the 4th measurement event.
In specific implementation, the alien frequencies of measurement that eNodeB is carried in being reported according to the 4th measurement event of reception is adjacent
The identification information in area come determine whether UE carry out cell switching.
Specifically, the identification information of alien frequencies adjacent area that eNodeB is carried in the report of the 4th measurement event is determined is second
After the identification information of designated area, UE is allowed to switch to the second designated area, otherwise, refusal UE carries out cell switching；Wherein, UE
Serving cell and the second designated area belong to different base station and physics site.
Here, the first designated area can be the alien frequencies adjacent area in different base station.If it is taken in the report of the 4th measurement event
The identification information of the alien frequencies adjacent area of band is with station alien frequencies adjacent area, then eNodeB refusals UE progress cell switchings.
In addition, realize that the executive agent of method that the embodiment of the present application is provided is not limited only to eNodeB, or
Any network side equipment that can realize above-mentioned function.
Using the embodiment of the present application, when UE is moved to serving cell center position, for co-sited alien frequencies adjacent area, Ke Yili
Start different-frequency measure namely when the serving cell signal intensity of measurement is higher than the first thresholding with the first measurement event to trigger UE
Start different-frequency measure, since the signal strength near center of housing estate is higher, UE can be made to be moved near center of housing estate in this way
When initiate different-frequency measure in time, and then switch in the alien frequencies adjacent area of center of housing estate, in addition, due to not having to reuse setting
The A2 events of higher threshold value also avoid starting unnecessary different-frequency measure positioned at the UE of cell edge, so as to effectively
Reduce the loss of UE uplink and downlink service rates.And when UE is moved to serving cell edge direction, for different station alien frequencies adjacent area,
It can trigger UE startup different-frequency measures using the second measurement event namely be less than second in the serving cell signal intensity of measurement
Start different-frequency measure during thresholding, since the signal strength near cell edge is weaker, UE can be made to be moved to cell side in this way
Different-frequency measure is initiated during edge in time, and then is switched in the alien frequencies adjacent area of cell edge.
Embodiment two
As shown in figure 3, the switchover policy definition graph of LTE inter-frequency networking handover events provided for the embodiment of the present application two.
Wherein, F-band cell and D frequency range cells are deployed on eNodeB_1 sites, also, D frequency ranges cell is located at center of housing estate position
It puts.D frequency range cells are deployed on eNodeB_2 sites.
When UE, which occupies F-band cell, initiates business, established after RRC connect with eNodeB_1, eNodeB_1 can lead to
RRC is crossed to reconfigure signaling while issue two sets of measurement configuration informations to UE.Wherein, A1_1 is carried in the first measurement configuration information
Measurement event and A2_1 measurement events, for UE being controlled to start different-frequency measure when UE is moved to serving cell center position.
A1_2 measurement events and A2_2 measurement events are carried in second measurement configuration information, in UE to serving cell edge side
Start different-frequency measure to control UE during movement.
In specific implementation, UE is to during same station D frequency range cells direction movement, if measuring occupied F-band cell
RSRP meets A1_1 measurement events, that is, measure occupied F-band cell RSRP be more than the first threshold value when, UE to
ENodeB_1 reports A1_1 measurement events to report.ENodeB_1 is reconfigured after the report of A1_1 measurement events is received by RRC
Signaling issues the third measurement configuration information for carrying third measurement event to UE, is used to indicate UE and goes to measure alien frequencies adjacent area
RSRP.Here, third measurement event is identified with A4_1 measurement events.After UE receives A4_1 measurement events, it is adjacent to measure alien frequencies
The RSRP in area.When the RSRP of alien frequencies adjacent area that UE is measured meets A4_1 measurement events, A4_1 is reported to measure thing to eNodeB_1
Part is reported.
Here, eNodeB_1 judges what is carried in the report of A4_1 measurement events after the report of A4_1 measurement events is received
Whether the identification information of the alien frequencies adjacent area of measurement is with station D frequency ranges adjacent area, if so, the alien frequencies switching flow of triggering following, no
Then, without subsequent processing.In the embodiment of the present application, eNodeB_1 triggering follow-up alien frequencies switching flow with it is different in the prior art
Frequency switching flow is identical, is no longer described in detail one by one here.
From above-mentioned flow it is found that in UE to during same station D frequency range cells direction movement, A1_1 measurement events may be used to touch
Hair starts different-frequency measure, and the switching of progress alien frequencies adjacent area is triggered using A4_1 measurement events.
In addition, UE is to during same station D frequency range cells direction movement, in fact it could happen that after A1_1 measurement events are met, full
Before sufficient A4_1 measurement events, the situation of A2_1 measurement events has been met.For example, UE is to same station D frequency range cells direction
After moving certain distance and starting different-frequency measure, and continue to move in reverse direction.In such a scenario, it is understood that there may be full
Before sufficient A4_1 measurement events, A2_1 measurement events have been met, then UE will continue to A2_1 be reported to measure thing to eNodeB
Part is reported.ENodeB can send the instruction of a stopping different-frequency measure to UE, be used for after the report of A2_1 measurement events is received
Inform that UE stops measuring the signal strength of alien frequencies adjacent area.In this case, UE will not measure thing to the A4_1 that eNodeB is reported
Part report, i.e., will not triggering following alien frequencies adjacent area handoff procedure.
Can be -80dbm for the recommended value of the first threshold value set in A1_1 measurement events, value range can be with
Between -90~-75dbm.The first threshold value can be adjusted according to actual conditions in practical applications, with ensure UE can and
When by F-band cell switch to station D frequency range cells.Also, the 5th threshold value and A1_1 of A2_1 measurement events are measured
The setting of first threshold value of event need to retain the difference of 3dbm, in case frequently triggering A2_1 measurement events, lead to different-frequency measure
The interruption of process.For example, the threshold value of A2_1 measurement events can be set as -83dbm.
In specific implementation, UE to different station D frequency range cells direction move when, if measuring occupied F-band cell
RSRP meets A2_2 measurement events, that is, measure occupied F-band cell RSRP be less than the second threshold value when, UE to
ENodeB_1 reports A2_2 measurement events to report.ENodeB_1 is reconfigured after the report of A2_2 measurement events is received by RRC
Signaling issues the 4th measurement configuration information for carrying the 4th measurement event to UE, is used to indicate UE and goes to measure alien frequencies adjacent area
RSRP.Here, the 4th measurement event is identified with A4_2 measurement events.After UE receives A4_2 measurement events, it is adjacent to measure alien frequencies
The RSRP in area.When the RSRP of alien frequencies adjacent area that UE is measured meets A4_2 measurement events, A4_2 is reported to measure thing to eNodeB_1
Part is reported.
Here, eNodeB_1 judges what is carried in the report of A4_2 measurement events after the report of A4_2 measurement events is received
Whether the identification information of the alien frequencies adjacent area of measurement is different station D frequency ranges adjacent area, if so, the alien frequencies switching flow of triggering following, no
Then, without subsequent processing.In the embodiment of the present application, eNodeB_1 triggering follow-up alien frequencies switching flow with it is different in the prior art
Frequency switching flow is identical, is no longer described in detail one by one here.
From above-mentioned flow it is found that when UE is moved to different station D frequency range cells direction, A2_2 measurement events may be used to touch
Hair starts different-frequency measure, and the switching of progress alien frequencies adjacent area is triggered using A4_2 measurement events.
In addition, UE to different station D frequency range cells direction move when, in fact it could happen that after A2_2 measurement events are met, full
Before sufficient A4_2 measurement events, the situation of A1_2 measurement events has been met.For example, UE is to different station D frequency range cells direction
After moving certain distance and starting different-frequency measure, and continue to move in reverse direction.In such a scenario, it is understood that there may be full
Before sufficient A4_2 measurement events, A1_2 measurement events have been met, then UE will continue to A1_2 be reported to measure thing to eNodeB
Part is reported.ENodeB can send the instruction of a stopping different-frequency measure to UE, be used for after the report of A1_2 measurement events is received
Inform that UE stops measuring the signal strength of alien frequencies adjacent area.In this case, UE will not measure thing to the A4_2 that eNodeB is reported
Part report, i.e., will not triggering following alien frequencies adjacent area handoff procedure.
Can be -105dbm for the recommended value of the second threshold value set in A2_2 measurement events, value range can
With between -108~-102dbm.The second threshold value can be adjusted according to actual conditions in practical applications, to ensure that UE can
To switch to different station D frequency range cells by F-band cell in time.Also, for the 6th threshold value and A2_2 of A1_2 measurement events
The setting of second threshold value of measurement event need to retain the difference of 3dbm, in case frequently triggering A1_2 measurement events, lead to alien frequencies
The interruption of measurement process.For example, the threshold value of A1_2 measurement events can be set as -102dbm.
By above-mentioned flow it is found that using different-frequency measure control method provided by the embodiments of the present application as alien frequencies switching control
Strategy when UE to serving cell center position when moving, for co-sited alien frequencies adjacent area, can be touched using A1_1 measurement events
Hair different-frequency measure namely measurement F-band cell signal strength be higher than the first thresholding when start different-frequency measure, due to cell
The signal strength of immediate vicinity is higher, UE can be made to initiate different-frequency measure in time when being moved near center of housing estate in this way, into
And switch in the same station D frequency range cells of center of housing estate, in addition, there is provided the A2 of higher threshold value due to not having to reuse
Event also avoids starting unnecessary different-frequency measure positioned at the UE of cell edge, so as to effectively reduce industry above and below UE
The loss for rate of being engaged in.And when UE is moved to serving cell edge direction, for different station alien frequencies adjacent area, A2_2 can be utilized to measure
Event come trigger UE start different-frequency measure namely measurement F-band cell signal strength be less than the second thresholding when start alien frequencies
It measures, since the signal strength near cell edge is weaker, UE can in this way initiated in time when being moved to cell edge different
Frequency measures, and then switches in the different station D frequency range cells of cell edge.
Based on same application design, additionally provided in the embodiment of the present application a kind of corresponding with different-frequency measure control method different
Frequency measuring and controlling, since the principle that the device solves the problems, such as is similar to different-frequency measure control method in the embodiment of the present application,
Therefore the implementation of the device may refer to the implementation of method, and overlaps will not be repeated.
Embodiment three
As shown in figure 4, for the structure diagram of different-frequency measure control device that the embodiment of the present application three provides, including：
Module 41 is established, is connect for establishing radio resource control RRC with user equipment (UE)；
Sending module 42 for being based on the RRC connections, issues the first measurement configuration information and second to the UE and measures
Configuration information；
Wherein, it is directed to altogether comprising the UE when being moved to serving cell center position in first measurement configuration information
Alien frequencies adjacent area of standing starts the first measurement event for being met of different-frequency measure, and first measurement event refers to that the service of the UE is small
Area's signal strength is higher than the first threshold value；
It is different for different station when being moved to serving cell edge direction comprising the UE in second measurement configuration information
Frequency adjacent area starts the second measurement event that different-frequency measure is met；Second measurement event refers to the serving cell letter of the UE
Number intensity is more than the second threshold value less than the second threshold value, first threshold value.
Optionally, the sending module 42 is specifically used for：
Signaling is reconfigured by RRC, issues first measurement configuration information and second measurement configuration information.
Optionally, described device further includes：
First receiving module 43 is surveyed for issuing the first measurement configuration information and second to the UE in the sending module
After measuring configuration information, the first measurement event report that the UE is reported is received；The first measurement event report is used to indicate
Meet first measurement event；
The sending module 42 is additionally operable to：
Third measurement configuration information is issued to the UE, is used to indicate the signal strength that the UE measures alien frequencies adjacent area；Institute
State the third measurement event met in third measurement configuration information comprising progress cell switching；
First receiving module 43 is additionally operable to：
The third measurement event report that the UE is reported is received, the third measurement event report, which is used to indicate, meets third
Measurement event；
Described device further includes：
First control module 44, for the third measurement event report received according to first receiving module, control
Make the cell switching of the UE.
Optionally, the identification information of the alien frequencies adjacent area of measurement is carried in the third measurement event report；
First control module 44 is specifically used for：
The identification information of the alien frequencies adjacent area carried in the third measurement event report is determined is specified for first
After the identification information of cell, the UE is allowed to switch to first designated area, otherwise, refuse the UE progress cell and cut
It changes；Wherein, the serving cell of the UE and first designated area belong to same base station or same physics site.
Optionally, the 5th also met in first measurement configuration information comprising UE stopping startup different-frequency measures
Measurement event is used to indicate the UE after different-frequency measure is started, if meeting the 5th measurement event, stops measuring alien frequencies neighbour
The signal strength in area.
Optionally, described device further includes：
Second receiving module 45 is surveyed for issuing the first measurement configuration information and second to the UE in the sending module
After measuring configuration information, the second measurement event report that the UE is reported is received；The second measurement event report is used to indicate
Meet second measurement event；
The sending module 42 is additionally operable to：
The 4th measurement configuration information is issued to the UE, is used to indicate the signal strength that the UE measures alien frequencies adjacent area；Institute
State the 4th measurement event met in the 4th measurement configuration information comprising progress cell switching；
Second receiving module 45 is additionally operable to：
The 4th measurement event report that the UE is reported is received, the 4th measurement event report is used to indicate satisfaction the 4th
Measurement event；
Described device further includes：
Second control module 46, for the 4th measurement event report received according to second receiving module, control
Make the cell switching of the UE.
Optionally, the identification information of the alien frequencies adjacent area of measurement is carried in the 4th measurement event report；
Second control module 46 is specifically used for：
The identification information of the alien frequencies adjacent area carried in the 4th measurement event report is determined is specified for second
After the identification information of cell, the UE is allowed to switch to second designated area, otherwise, refuse the UE progress cell and cut
It changes；Wherein, the serving cell of the UE and second designated area belong to different base station and physics site.
Optionally, the 6th also met in second measurement configuration information comprising UE stopping startup different-frequency measures
Measurement event is used to indicate the UE after different-frequency measure is started, if meeting the 6th measurement event, stops measuring alien frequencies neighbour
The signal strength in area.
Example IV
As shown in figure 5, for the structure diagram of different-frequency measure control device that the embodiment of the present application four provides, including：
Module 51 is established, is connect for establishing radio resource control RRC with network side equipment；
Receiving module 52 for being based on the RRC connections, receives the first measuring configuration letter that the network side equipment issues
Breath and the second measurement configuration information；
Wherein, it is directed to altogether comprising the UE when being moved to serving cell center position in first measurement configuration information
Alien frequencies adjacent area of standing starts the first measurement event for being met of different-frequency measure, and first measurement event refers to that the service of the UE is small
Area's signal strength is higher than the first threshold value；
It is different for different station when being moved to serving cell edge direction comprising the UE in second measurement configuration information
Frequency adjacent area starts the second measurement event that different-frequency measure is met；Second measurement event refers to the serving cell letter of the UE
Number intensity is more than the second threshold value less than the second threshold value, first threshold value.
Optionally, the receiving module 52 is specifically used for：
Receive first measurement configuration information and described that the network side equipment reconfigures transmitting signaling downwards by RRC
Two measurement configuration informations.
Optionally, described device further includes：
First sending module 53 is matched for receiving first that the network side equipment issues in the receiving module and measuring
Confidence is ceased with after the second measurement configuration information, the first measurement event is reported to report to the network side equipment；Described first surveys
The report of amount event, which is used to indicate, meets first measurement event；
The receiving module 52 is additionally operable to：
The third measurement configuration information that the network side equipment issues is received, the UE is used to indicate and measures alien frequencies adjacent area
Signal strength；The third measurement event met in the third measurement configuration information comprising progress cell switching；
First sending module 53 is additionally operable to：
Third measurement event is reported to report to the network side equipment, so that the network side equipment is according to reception
Third measurement event is reported, the cell of the UE is controlled to switch；The third measurement event report, which is used to indicate, meets third survey
Amount event.
Optionally, first sending module 53 is specifically used for：
The third measurement event of the identification information for the alien frequencies adjacent area for carrying measurement is reported to report to the network side equipment,
So that the mark for the alien frequencies adjacent area that the network side equipment carries in being reported according to the third measurement event of reception is believed
Breath, controls the cell of the UE to switch.
Optionally, the 5th also met in first measurement configuration information comprising UE stopping startup different-frequency measures
Measurement event is used to indicate the UE after different-frequency measure is started, if meeting the 5th measurement event, stops measuring alien frequencies neighbour
The signal strength in area.
Optionally, described device further includes：
Second sending module 54 is matched for receiving first that the network side equipment issues in the receiving module and measuring
Confidence is ceased with after the second measurement configuration information, the second measurement event is reported to report to the network side equipment；Described second surveys
The report of amount event, which is used to indicate, meets second measurement event；
The receiving module 52 is additionally operable to：
The 4th measurement configuration information that the network side equipment issues is received, the UE is used to indicate and measures alien frequencies adjacent area
Signal strength；The 4th measurement event met in 4th measurement configuration information comprising progress cell switching；
Second sending module 54 is additionally operable to：
The 4th measurement event is reported to report to the network side equipment, so that the network side equipment is according to reception
4th measurement event is reported, the cell of the UE is controlled to switch；The 4th measurement event report is used to indicate satisfaction the 4th and surveys
Amount event.
Optionally, the second sending module 54 is specifically used for：
The 4th measurement event of the identification information for the alien frequencies adjacent area for carrying measurement is reported to report to the network side equipment,
So that the mark for the alien frequencies adjacent area that the network side equipment carries in being reported according to the 4th measurement event of reception is believed
Breath, controls the cell of the UE to switch.
Optionally, the 6th also met in second measurement configuration information comprising UE stopping startup different-frequency measures
Measurement event is used to indicate the UE after different-frequency measure is started, if meeting the 6th measurement event, stops measuring alien frequencies neighbour
The signal strength in area..
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware can be used in the present invention
Apply the form of example.Moreover, the computer for wherein including computer usable program code in one or more can be used in the present invention
The computer program production that usable storage medium is implemented on (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of device (system) and computer program product
Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
The processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that the instruction performed by computer or the processor of other programmable data processing devices is generated for real
The device of function specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction generation being stored in the computer-readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps are performed on calculation machine or other programmable devices to generate computer implemented processing, so as in computer or
The instruction offer performed on other programmable devices is used to implement in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then additional changes and modifications may be made to these embodiments.So appended claims be intended to be construed to include it is excellent
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (18)
1. a kind of different-frequency measure control method, which is characterized in that this method includes：
Network side equipment is established radio resource control RRC with user equipment (UE) and is connect；
Based on the RRC connections, the first measurement configuration information and the second measurement configuration information are issued to the UE；
Wherein, it is different for co-sited when being moved to serving cell center position comprising the UE in first measurement configuration information
Frequency adjacent area starts the first measurement event that different-frequency measure is met, and first measurement event refers to the serving cell letter of the UE
Number intensity is higher than the first threshold value；
It is adjacent for different station alien frequencies when being moved to serving cell edge direction comprising the UE in second measurement configuration information
Area starts the second measurement event that different-frequency measure is met；Second measurement event refers to that the serving cell signal of the UE is strong
Degree is more than the second threshold value less than the second threshold value, first threshold value.
2. the method as described in claim 1, which is characterized in that described to issue the first measurement configuration information and second to the UE
Measurement configuration information, including：
Signaling is reconfigured by RRC, while issues first measurement configuration information and second measurement configuration information.
3. the method as described in claim 1, which is characterized in that surveyed issuing the first measurement configuration information and second to the UE
After measuring configuration information, further include：
Receive the first measurement event report that the UE is reported；The first measurement event report, which is used to indicate, meets described first
Measurement event；
Third measurement configuration information is issued to the UE, is used to indicate the signal strength that the UE measures alien frequencies adjacent area；Described
The third measurement event met in three measurement configuration informations comprising progress cell switching；
The third measurement event report that the UE is reported is received, the third measurement event report, which is used to indicate, meets third measurement
Event；
It is reported according to the third measurement event of reception, the cell of the UE is controlled to switch.
4. method as claimed in claim 3, which is characterized in that the alien frequencies of measurement is carried in the third measurement event report
The identification information of adjacent area；
It is reported according to the third measurement event of reception, the cell of the UE is controlled to switch, including：
The identification information of the alien frequencies adjacent area carried in the third measurement event report is determined is the first designated area
Identification information after, the UE is allowed to switch to first designated area, otherwise, refuses the UE and carries out cell switching；Its
In, the serving cell of the UE and first designated area belong to same base station or same physics site.
5. the method as described in claim 1, which is characterized in that also stop in first measurement configuration information comprising the UE
Start the 5th measurement event that different-frequency measure is met, be used to indicate the UE after different-frequency measure is started, if meeting the 5th
Measurement event then stops measuring the signal strength of alien frequencies adjacent area.
6. the method as described in claim 1, which is characterized in that surveyed issuing the first measurement configuration information and second to the UE
After measuring configuration information, further include：
Receive the second measurement event report that the UE is reported；The second measurement event report, which is used to indicate, meets described second
Measurement event；
The 4th measurement configuration information is issued to the UE, is used to indicate the signal strength that the UE measures alien frequencies adjacent area；Described
The 4th measurement event met in four measurement configuration informations comprising progress cell switching；
The 4th measurement event report that the UE is reported is received, the 4th measurement event report is used to indicate satisfaction the 4th and measures
Event；
It is reported according to the 4th measurement event of reception, the cell of the UE is controlled to switch.
7. method as claimed in claim 6, which is characterized in that the alien frequencies of measurement is carried in the 4th measurement event report
The identification information of adjacent area；
It is reported according to the 4th measurement event of reception, the cell of the UE is controlled to switch, including：
The identification information of the alien frequencies adjacent area carried in the 4th measurement event report is determined is the second designated area
Identification information after, the UE is allowed to switch to second designated area, otherwise, refuses the UE and carries out cell switching；Its
In, the serving cell of the UE and second designated area belong to different base station and physics site.
8. the method as described in claim 1, which is characterized in that also stop in second measurement configuration information comprising the UE
Start the 6th measurement event that different-frequency measure is met, be used to indicate the UE after different-frequency measure is started, if meeting the 6th
Measurement event then stops measuring the signal strength of alien frequencies adjacent area.
9. a kind of different-frequency measure control method, which is characterized in that this method includes：
User equipment (UE) is established radio resource control RRC with network side equipment and is connect；
Based on the RRC connections, the first measurement configuration information and the second measuring configuration letter that the network side equipment issues are received
Breath；
Wherein, it is different for co-sited when being moved to serving cell center position comprising the UE in first measurement configuration information
Frequency adjacent area starts the first measurement event that different-frequency measure is met, and first measurement event refers to the serving cell letter of the UE
Number intensity is higher than the first threshold value；
It is adjacent for different station alien frequencies when being moved to serving cell edge direction comprising the UE in second measurement configuration information
Area starts the second measurement event that different-frequency measure is met；Second measurement event refers to that the serving cell signal of the UE is strong
Degree is more than the second threshold value less than the second threshold value, first threshold value.
10. method as claimed in claim 9, which is characterized in that first measurement for receiving the network side equipment and issuing
Configuration information and the second measurement configuration information, including：
It receives the network side equipment and first measurement configuration information of transmitting signaling downwards and second survey is reconfigured by RRC
Measure configuration information.
11. method as claimed in claim 9, which is characterized in that match in the first measurement that the reception network side equipment issues
Confidence is ceased with after the second measurement configuration information, is further included：
The first measurement event is reported to report to the network side equipment；The first measurement event report is used to indicate described in satisfaction
First measurement event；
The third measurement configuration information that the network side equipment issues is received, is used to indicate the signal that the UE measures alien frequencies adjacent area
Intensity；The third measurement event met in the third measurement configuration information comprising progress cell switching；
Third measurement event is reported to report to the network side equipment, so that the third of the network side equipment according to reception
Measurement event is reported, the cell of the UE is controlled to switch；The third measurement event report, which is used to indicate, meets third measurement thing
Part.
12. method as claimed in claim 11, which is characterized in that described to report third measurement event to the network side equipment
Report, including：
The third measurement event of the identification information for the alien frequencies adjacent area for carrying measurement is reported to report to the network side equipment, so that
The identification information of the alien frequencies adjacent area that the network side equipment carries in being reported according to the third measurement event of reception, control
Make the cell switching of the UE.
13. method as claimed in claim 9, which is characterized in that also stop in first measurement configuration information comprising the UE
Only start the 5th measurement event that is met of different-frequency measure, be used to indicate the UE after different-frequency measure is started, if satisfaction the
Five measurement events then stop measuring the signal strength of alien frequencies adjacent area.
14. method as claimed in claim 9, which is characterized in that match in the first measurement that the reception network side equipment issues
Confidence is ceased with after the second measurement configuration information, is further included：
The second measurement event is reported to report to the network side equipment；The second measurement event report is used to indicate described in satisfaction
Second measurement event；
The 4th measurement configuration information that the network side equipment issues is received, is used to indicate the signal that the UE measures alien frequencies adjacent area
Intensity；The 4th measurement event met in 4th measurement configuration information comprising progress cell switching；
The 4th measurement event is reported to report to the network side equipment, so that the network side equipment is according to the described 4th of reception
Measurement event is reported, the cell of the UE is controlled to switch；The 4th measurement event report is used to indicate satisfaction the 4th and measures thing
Part.
15. method as claimed in claim 14, which is characterized in that described to report the 4th measurement event to the network side equipment
Report, including：
The 4th measurement event of the identification information for the alien frequencies adjacent area for carrying measurement is reported to report to the network side equipment, so that
The identification information of the alien frequencies adjacent area that the network side equipment carries in being reported according to the 4th measurement event of reception, control
Make the cell switching of the UE.
16. method as claimed in claim 9, which is characterized in that also stop in second measurement configuration information comprising the UE
Only start the 6th measurement event that is met of different-frequency measure, be used to indicate the UE after different-frequency measure is started, if satisfaction the
Six measurement events then stop measuring the signal strength of alien frequencies adjacent area.
17. a kind of different-frequency measure control device, which is characterized in that the device includes：
Module is established, is connect for establishing radio resource control RRC with user equipment (UE)；
Sending module for being based on the RRC connections, issues the first measurement configuration information to the UE and the second measuring configuration is believed
Breath；
Wherein, it is different for co-sited when being moved to serving cell center position comprising the UE in first measurement configuration information
Frequency adjacent area starts the first measurement event that different-frequency measure is met, and first measurement event refers to the serving cell letter of the UE
Number intensity is higher than the first threshold value；
It is adjacent for different station alien frequencies when being moved to serving cell edge direction comprising the UE in second measurement configuration information
Area starts the second measurement event that different-frequency measure is met；Second measurement event refers to that the serving cell signal of the UE is strong
Degree is more than the second threshold value less than the second threshold value, first threshold value.
18. a kind of different-frequency measure control device, which is characterized in that the device includes：
Module is established, is connect for establishing radio resource control RRC with network side equipment；
Receiving module for being based on the RRC connections, receives the first measurement configuration information and that the network side equipment issues
Two measurement configuration informations；
Wherein, it is different for co-sited when being moved to serving cell center position comprising the UE in first measurement configuration information
Frequency adjacent area starts the first measurement event that different-frequency measure is met, and first measurement event refers to the serving cell letter of the UE
Number intensity is higher than the first threshold value；
It is adjacent for different station alien frequencies when being moved to serving cell edge direction comprising the UE in second measurement configuration information
Area starts the second measurement event that different-frequency measure is met；Second measurement event refers to that the serving cell signal of the UE is strong
Degree is more than the second threshold value less than the second threshold value, first threshold value.
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