CN104270788B - A kind of method and apparatus of different system switching - Google Patents
A kind of method and apparatus of different system switching Download PDFInfo
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- CN104270788B CN104270788B CN201410508826.9A CN201410508826A CN104270788B CN 104270788 B CN104270788 B CN 104270788B CN 201410508826 A CN201410508826 A CN 201410508826A CN 104270788 B CN104270788 B CN 104270788B
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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
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a kind of method and apparatus of different system switching, to improve the success rate switched between different system cell, the network load of cell is reduced so that the distribution of subzone network resource is more reasonable.The described method includes:The pilot measurement reports of the user equipment to report of the first access net cell are received, wherein, the pilot measurement reports include:Meet the identification information of the second access of default switching condition cell off the net;According to the identification information of the described second access cell off the net from default cell identity information list, search whether that there are identical identification information;If searching the identification information identical less than identification information in the list, trigger the user equipment and the second access net cell is switched to by redirection process.
Description
Technical field
The present invention relates to field of communication technology, more particularly to a kind of method and apparatus of different system switching.
Background technology
With the popularization of intelligent subscriber equipment (User Equipment, UE), Packet Service (Packet Service, PS)
There is fulminant growth, occupy most of Time division multiple access (Time Division-Synchronized
Code Division Multiple Access, TD-SCDMA) wireless network resource, cause the load of TD-SCDMA network
It is higher and higher.Due to Long Term Evolution (the Time Division-Long Term by user equipment from TD-SCDMA system to the time-division
Evolution, TD-LTE) system switching, user equipment can be shared to different networks, so as to fulfill PS business point
Stream, alleviates network load.
Referring to Fig. 1, PS business of the radio network controller (Radio Network Controller, RNC) in UE is established
After the completion of, establish completion message according to wireless heterogeneous networks (Radio Resource Control, RRC) and judge whether the UE props up
The Universal Mobile Communication System (Universal Mobile Telecommunication System, UMTS) for holding evolution is wireless
Net (Evolved UMTS Radio Access Network, E-UTRAN) is accessed, if the UE supports E-UTRAN, and should
Serving cell residing for UE, which exists, supports adjacent E-UTRAN cells, then RNC sends isosystem measurement control information to the UE
(Inter-RAT Measurement Control), it is desirable to the UE carries out pilot measurement to adjacent E-UTRAN cells, wherein,
The isosystem measurement control information includes, frequency point information, isosystem measurement amount, the event decision gate of adjacent E-UTRAN cells
The duration of limit value and test signal.Wherein, isosystem measurement amount is Reference Signal Received Power (Reference
Signal Received Power, RSRP) or Reference Signal Received Quality (Reference Signal Received
Quality, RSRQ), the frequency point information of adjacent E-UTRAN cells includes frequency point number and the survey of adjacent E-UTRAN cells
Measure bandwidth.
The UE is directed to the frequency point number of E-UTRAN cells adjacent in isosystem measurement control information, to isosystem measurement amount
Carry out pilot measurement.The duration of default test signal in isosystem measurement control information and event decision threshold
Value, obtains when meeting different system 3A events, i.e., within the duration of default test signal, the result measured continues completely
During sufficient event judging threshold, which is reported to RNC by measurement report, wherein, measurement report includes:Measure obtain the result is that
The no Physical Cell Identifier for meeting preset condition, the frequency point number of adjacent E-UTRAN cells and adjacent E-UTRAN cells.
The measurement report that the RNC real-time receptions UE is reported, preset condition is determined for compliance with according to the measurement report received
Adjacent E-UTRAN cells, then from the static data allocation list of RNC search measurement report in the E-UTRAN cells physics
Cell ID, if can not find out the Physical Cell Identifier of the E-UTRAN cells in measurement report, can not trigger the PS industry of the UE
It is engaged in switching to TD-LTE, that is to say, that the UE is remained in TD-SCDMA network;If find the E- in measurement report
The Physical Cell Identifier of UTRAN cells, it is determined that it is small for target to trigger the UE as Target cell for an E-UTRAN cell
The reorientation in area.If the UE is to Target cell convert failed, i.e. reorientation failure, then the UE remains in TD-SCDMA nets
In network.
Due to the early stage of TD-LTE deployment, the network planning is incomplete, and TD-LTE cell leakages, may result in what is received
Meet the Physical Cell Identifier of the E-UTRAN cells of preset condition in measurement report, had no in the static data allocation list of RNC
Record, therefore cause to search the Physical Cell Identifier less than the E-UTRAN cells in measurement report, the PS industry of the UE can not be triggered
The switching being engaged in TD-LTE so that the UE is remained in TD-SCDMA network;Due to core net (Core Network, CN)
The interface of definite to be switched Target cell, or the network element interface of different manufacturers is not supported or not mutually, caused by
Supported between core net and UE incomplete so that UE is to be switched Target cell convert failed so that UE remains in TD-
In SCDMA networks.
In conclusion early stage network is disposed, the success rate using prior art progress different systems switching is low, and
When handoff failure, which remains in former network, is unfavorable for mitigating the load of former network.
The content of the invention
An embodiment of the present invention provides a kind of method and apparatus of different system switching, switch to improve between different system cell
Success rate, reduce the network load of cell so that the distribution of subzone network resource is more reasonable.
A kind of method of different system switching provided in an embodiment of the present invention, this method include:
The pilot measurement reports of the user equipment to report of the first access net cell are received, wherein, the pilot measurement reports
Including:Meet the identification information of the second access of preset condition cell off the net;
According to the identification information of the described second access cell off the net from default cell identity information list, lookup is
It is no that there are identical identification information;
If searching the identification information identical less than identification information in the list, trigger the user equipment and pass through weight
Orientation process is switched to the second access net cell.
In this way, when searching the identification information of the cell off the net less than the second access in pilot measurement reports,
Actively triggering redirects, and improves the success rate of different system cell switching, reduces the load of former network so that Internet resources
Distribution is more reasonable.
It is preferred that the default switching condition is:The user equipment measurement of the first access net cell obtains different
Systematic survey value, persistently meets event judging threshold in preset time period.
If it is preferred that finding the identical identification information of identification information in the list, the user equipment is triggered
Second access net cell is switched to by repositioning process.
If it is preferred that reorientation failure of the user equipment for the second access net cell, the standard that basis receives
Standby reorientation failed message, triggers the user equipment and is switched to the second access net cell by redirection process.
It is preferred that relocating failed message according to the preparation received, trigger the user equipment and pass through redirection process
The second access net cell is switched to, including:
If the number of resources that the reason for repositioning process failure is not the second access net cell is unsatisfactory for predetermined threshold value,
Then trigger the user equipment and the second access net cell is switched to by redirection process.
It is preferred that further included in the pilot measurement reports:Meet that the second access of preset condition cell off the net corresponds to
Frequency point number;
Trigger the user equipment and the second access net cell is switched to by redirection process, including:
The redirection triggering message for the second access net cell is sent to the user equipment, wherein, the redirection
Triggering message includes:Meet the second access of preset condition corresponding frequency point number of cell off the net in the pilot measurement reports.
A kind of equipment of different system switching provided in an embodiment of the present invention, the equipment include:
Reporting modules are received, the pilot measurement reports of the user equipment to report for receiving the first access net cell, wherein,
The pilot measurement reports include:Meet the identification information of the second access of preset condition cell off the net;
Identification information module is searched, for the identification information according to the described second access cell off the net from default cell
In list of identification information, search whether that there are identical identification information;
Trigger module, if the identification information identical less than identification information for the lookup in the list, described in triggering
User equipment is switched to the second access net cell by redirection process.
By the equipment, when searching the identification information of the cell off the net less than the second access in pilot measurement reports,
Actively triggering redirects, and improves the success rate of different system cell switching, reduces the load of former network so that Internet resources
Distribution is more reasonable.
It is preferred that the default switching condition is:The user equipment measurement of the first access net cell obtains different
Systematic survey value, persistently meets event judging threshold in preset time period.
If it is preferred that finding the identical identification information of identification information in the list, the trigger module triggers
The user equipment is switched to the second access net cell by repositioning process.
If it is preferred that the repositioning process fails, the trigger module triggers the user equipment and passes through redirection
Process is switched to the second access net cell.
It is preferred that the trigger module is relocating failed message according to the preparation received, the user equipment is triggered
For second access net cell redirection when, be specifically used for:
If the preparation reorientation failed message received does not include, the number of resources of the second access net cell is unsatisfactory for pre- gating
Limit value, then trigger redirection of the user equipment for the second access net cell.
It is preferred that further included in the pilot measurement reports:Meet that the second access of preset condition cell off the net corresponds to
Frequency point number;
The trigger module is specifically used in redirection of the triggering user equipment for the second access net cell:
The redirection triggering message for the second access net cell is sent to the user equipment, wherein, the redirection
Triggering message includes:Meet the second access of preset condition corresponding frequency point number of cell off the net in the pilot measurement reports.
Brief description of the drawings
Fig. 1 is the flow diagram for the pilot measurements that user terminal determines adjacent different system cell;
Fig. 2 is a kind of flow diagram of the method for different system switching provided in an embodiment of the present invention;
Fig. 3 is the flow diagram of different system switching provided in an embodiment of the present invention;
Fig. 4 is a kind of structure diagram of the equipment of different system switching provided in an embodiment of the present invention.
Embodiment
An embodiment of the present invention provides a kind of method and apparatus of different system switching, switch to improve between different system cell
Success rate, reduce the network load of cell so that the distribution of subzone network resource is more reasonable.
Referring to Fig. 2, a kind of method of different system switching provided in an embodiment of the present invention, this method comprises the following steps:
S201, the pilot measurement reports for receiving the first user equipment to report for accessing net cell, wherein, the pilot measurement
Report includes:Meet the identification information of the second access of default switching condition cell off the net;
S202, according to the identification information of the second access cell off the net for meeting default switching condition from default
In cell identity information list, search whether that there are identical identification information;Wherein, the default cell identity information list
Include the identification information of the second access cell off the net;
If S203, search the identification information identical less than identification information in the list, the user equipment is triggered
Second access net cell is switched to by redirection process.
It is preferred that the default switching condition is:The user equipment measurement of the first access net cell obtains different
Systematic survey value, persistently meets event judging threshold in preset time period.Wherein, the isosystem measurement amount, default
Period and event judging threshold are to be obtained from the isosystem measurement control information that the user equipment receives.
If it is preferred that the mark of the second access cell off the net in the pilot measurement reports is found in the list
Know information, then trigger the user equipment and the second access net cell is switched to by repositioning process;
If the user equipment is for the repositioning process failure of the second access net cell, according to the preparation weight received
Position fixing process failed message determines the reason for reorientation failure;It is the second access when the reason for the repositioning process fails
When the number of resources of net cell is unsatisfactory for predetermined threshold value, the user equipment is retained in the first access net cell;When described heavy
When the reason for positioning failure is not that the number of resources of the second access net cell is unsatisfactory for predetermined threshold value, triggers the user equipment and lead to
Cross redirection process and be switched to the second access net cell.
Since the specific switching flow of the redirection mode of the different system is, RNC discharges (RRC to the RRC that UE is sent
Release) message, wherein, the frequency point number of the cell under adjacent different system is carried in the RRC release messages;UE is according to RRC
The frequency point number carried in release message, independently selects adjacent different system cell, and initiates PS service requests.Therefore, if needed
Redirection of the user equipment for the second access net cell is triggered, is necessarily further included in the pilot measurement reports:It is full
The second of sufficient preset condition accesses the corresponding frequency point number of cell off the net, and the triggering user equipment passes through redirection process
The second access net cell is switched to, including:
The redirection triggering message for the second access net cell is sent to the user equipment, wherein, the redirection
Triggering message includes:Meet the second access of default switching condition corresponding frequency of cell off the net in the pilot measurement reports
Period;
Wherein, if including the identification informations of the multiple second access cells off the net in the pilot measurement reports, by the
The two accesses corresponding frequency point number of cell off the net is loaded into redirection triggering message, is sent to the user equipment, and by institute
Stating user equipment, independently the access of selection second cell off the net switches over;
If finding the in multiple pilot measurement reports second identification information for accessing cell off the net, institute is selected
Highest second access of isosystem measurement value in pilot measurement reports cell off the net is stated, it is small for the second access target off the net
Area, triggers the reorientation that the user equipment is directed to the Target cell;If reorientation failure, by the corresponding frequency of the Target cell
Period is loaded into redirection triggering message, is actively sent to the user equipment, and be directed to the target by the user equipment
Cell switches over;Alternatively, off the net small of the second access for selecting isosystem measurement value in the pilot measurement reports time high
Area, for the second access Target cell off the net, triggers the reorientation that the user equipment is directed to the Target cell, Zhi Daocha again
The reorientation that second found accesses all cells off the net fails, then by multiple second accesses found cell off the net
Corresponding frequency point number is loaded into redirection triggering message, is sent to the user equipment, and independently selected by the user equipment
The second access cell off the net is selected to switch over.
Since re-positioning technology and redirecting technique are the prior art of the switching of system, for this can be better understood from
The different system switching that invention provides, below will be explained both switching modes.
Wherein, the specific switching flow of the relocation loading mode of the different system is as follows:
Step 1: RNC sends re-positioning request (Relocation Required) message to CN;
Step 2: CN forwards RELOCATION REQUEST message to definite Target cell;
Step 3: Target cell is allocated the resource in the cell, then relocation response message is replied to CN;
Step 4: CN is according to received relocation response message, it is determined whether is sent to RNC and resets order of the bit
(Relocation Command) message, if the relocation response message received is successfully, sends to RNC and resets order of the bit
Message;If the relocation response message received is failure, sends reorientation to RNC and prepare failure (Relocation
Preparation Failure) message;
Step 5: if RNC receives reorientation command messages, sent to UE and transfer UTRAN orders (Handover
From UTRAN Command) message;If RNC, which receives reorientation, prepares failed message, which is retained in former cell;
Step 6: according to the transfer UTRAN command messages received, UE is switched over to Target cell.
Wherein, if CN or UE supports imperfection, CN in step 4 can be caused to send reorientation preparation failure to RNC
Message.
In addition, the specific switching flow of the redirection mode of the different system is, RNC discharges (RRC to the RRC that UE is sent
Release) message, wherein, the frequency point number of the cell under adjacent different system is carried in the RRC release messages;UE is according to RRC
The frequency point number carried in release message, independently selects adjacent different system cell, and initiates PS service requests.
Referring to Fig. 3, when the described first access net is TD-SCDMA, when the second access net is TD-LTE, the present invention is real
The idiographic flow for applying the different-system switching method of example proposition is as described below:
Step 1: when meeting different system 3A events, the user equipment in TD-SCDMA cells is by pilot measurement reports
Offer RNC;RNC receives the pilot measurement reports that the user's equipment reports;
Step 2: from the static data of RNC configurations, the physical area of TD-LTE in the pilot measurement reports reported is searched
Mark;
If Step 3: finding the Physical Cell Identifier of TD-LTE in the pilot measurement reports reported, triggering user sets
The standby adjacent TD-LTE cells being switched to by repositioning process in the pilot measurement reports;Otherwise, according to the pilot tone
The frequency point number of TD-LTE cells in measurement report, triggers the user equipment and is switched to the pilot measurement by redirection process
Adjacent TD-LTE cells in report;
If Step 4: relocating successfully, sent to user equipment and transfer UTRAN orders;Otherwise, surveyed according to the pilot tone
The frequency point number of TD-LTE cells, triggers the user equipment and is switched to the pilot measurement report by redirection process in amount report
Adjacent TD-LTE cells in announcement.
Referring to Fig. 4, a kind of equipment of different system switching provided in an embodiment of the present invention, the equipment includes:
Reporting modules 401 are received, the pilot measurement reports of the user equipment to report for receiving the first access net cell, its
In, the pilot measurement reports include:Meet the identification information of the second access of default switching condition cell off the net;
Identification information module 402 is searched, for the identification information according to the described second access cell off the net from default
In cell identity information list, search whether that there are identical identification information;
Trigger module 403, if for searching the identification information identical less than identification information in the list, triggers institute
State user equipment and the second access net cell is switched to by redirection process.
It is preferred that the default switching condition is:The user equipment measurement of the first access net cell obtains different
Systematic survey value, persistently meets event judging threshold in preset time period.
If it is preferred that the mark of the second access cell off the net in the pilot measurement reports is found in the list
Know information, then the trigger module 403 triggers the user equipment and is switched to the second access net cell by repositioning process.
If it is preferred that the repositioning process fails, the trigger module 403 triggers the user equipment by resetting
The second access net cell is switched to process.
It is preferred that the trigger module 403 is switched to the second access in the triggering user equipment by redirection process
During net cell, it is specifically used for:
If the number of resources that the reason for repositioning process failure is not the second access net cell is unsatisfactory for predetermined threshold value,
Then trigger the user equipment and the second access net cell is switched to by redirection process.
It is preferred that further included in the pilot measurement reports:Meet that the second access of default switching condition is off the net small
The corresponding frequency point number in area;
The trigger module 403 is switched to the second access net cell in the triggering user equipment by redirection process
When, it is specifically used for:
The redirection triggering message for the second access net cell is sent to the user equipment, wherein, the redirection
Triggering message includes:Meet the second access of default switching condition corresponding frequency of cell off the net in the pilot measurement reports
Period.
It is preferred that the reception reporting modules 401 provided by the invention, the lookup identification information module 402, described touching
Hair module 403 can be realized by processor.
Occur searching the identification information less than the cell in pilot measurement reports, Huo Zhechong in conclusion the present invention is directed to
When positioning the both of these case of failure, if having determined that the adjacent Target cell of better signal, user is actively triggered
Equipment is directed to the redirection of the Target cell so that the user's equipment initiates the switching of different system as early as possible, realize different system into
Work(switches, so as to improve the success rate of different systems switching, reduces the load of former network so that the distribution of Internet resources is more
Adduction is managed.
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 present invention can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more
The shape for the computer program product that usable storage medium is implemented on (including but not limited to magnetic disk storage and optical memory etc.)
Formula.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (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 square frame in journey and/or square frame and flowchart and/or the block diagram.These computer programs can be provided
The processors 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, which produces, to be used in fact
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
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 being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or
The instruction performed on other programmable devices is provided and is used for realization in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a square frame or multiple square frames.
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 scope.In this way, if these modifications and changes of the present invention belongs to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these modification and variations.
Claims (10)
- A kind of 1. method of different system switching, it is characterised in that this method includes:The pilot measurement reports of the user equipment to report of the first access net cell are received, wherein, the pilot measurement reports include: Meet the identification information of the second access of default switching condition cell off the net;According to the identification information of the described second access cell off the net from default cell identity information list, search whether to deposit In identical identification information;If searching the identification information identical less than identification information in the list, trigger the user equipment and pass through redirection Process is switched to the second access net cell;If finding the identical identification information of identification information in the list, institute is triggered State user equipment and the second access net cell is switched to by repositioning process.
- 2. according to the method described in claim 1, it is characterized in that, the default switching condition is:The first access net The isosystem measurement value that the user equipment measurement of cell obtains, persistently meets event judging threshold in preset time period.
- 3. if according to the method described in claim 1, it is characterized in that, repositioning process failure, triggers the user Equipment is switched to the second access net cell by redirection process.
- 4. according to the method described in claim 3, it is switched to it is characterized in that, triggering the user equipment by redirection process Second access net cell, is specially:If the number of resources that the reason for repositioning process failure is not the second access net cell is unsatisfactory for predetermined threshold value, touch Send out user equipment described is switched to the second access net cell by redirection process.
- 5. according to the method described in any claims of claim 2-4, it is characterised in that further included in the pilot measurement reports: Meet the second access of default switching condition corresponding frequency point number of cell off the net;Trigger the user equipment and the second access net cell is switched to by redirection process, including:The redirection triggering message for the second access net cell is sent to the user equipment, wherein, it is described to redirect triggering Message includes:Meet the second access of default switching condition corresponding frequency point of cell off the net in the pilot measurement reports Number.
- 6. a kind of equipment of different system switching, it is characterised in that the equipment includes:Reporting modules are received, the pilot measurement reports of the user equipment to report for receiving the first access net cell, wherein, it is described Pilot measurement reports include:Meet the identification information of the second access of default switching condition cell off the net;Identification information module is searched, for the identification information according to the described second access cell off the net from default cell ID In information list, search whether that there are identical identification information;Trigger module, if for searching the identification information identical less than identification information in the list, triggers the user Equipment is switched to the second access net cell by redirection process;If the identical mark of identification information is found in the list Information, then the trigger module trigger the user equipment and the second access net cell be switched to by repositioning process.
- 7. equipment according to claim 6, it is characterised in that the default switching condition is:The first access net The isosystem measurement value that the user equipment measurement of cell obtains, persistently meets event judging threshold in preset time period.
- 8. equipment according to claim 6, it is characterised in that if the repositioning process fails, the trigger module Trigger the user equipment and the second access net cell is switched to by redirection process.
- 9. equipment according to claim 8, it is characterised in that the trigger module passes through weight in the triggering user equipment When orientation process is switched to the second access net cell, it is specifically used for:If the number of resources that the reason for repositioning process failure is not the second access net cell is unsatisfactory for predetermined threshold value, touch Send out user equipment described is switched to the second access net cell by redirection process.
- 10. according to the equipment described in any claims of claim 7-9, it is characterised in that further included in the pilot measurement reports: Meet the second access of default switching condition corresponding frequency point number of cell off the net;The trigger module is specific to use when the triggering user equipment is switched to the second access net cell by redirection process In:The redirection triggering message for the second access net cell is sent to the user equipment, wherein, it is described to redirect triggering Message includes:Meet the second access of default switching condition corresponding frequency point of cell off the net in the pilot measurement reports Number.
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CN106612514B (en) * | 2015-10-21 | 2020-02-21 | 中国移动通信集团公司 | Measurement scheduling method, device and terminal |
CN107306427A (en) * | 2016-04-18 | 2017-10-31 | 宇龙计算机通信科技(深圳)有限公司 | A kind of SRVCC measurements report method, SRVCC measurement reporting devices and terminal |
CN107105461A (en) * | 2017-05-09 | 2017-08-29 | 深圳市万普拉斯科技有限公司 | Different grid reselecting method, device and mobile terminal |
CN110290473B (en) * | 2018-03-19 | 2021-07-27 | 成都鼎桥通信技术有限公司 | Switching method and device |
CN110868741A (en) * | 2019-11-21 | 2020-03-06 | 中国联合网络通信集团有限公司 | Base station, base station switching method and device |
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CN103249094A (en) * | 2012-02-06 | 2013-08-14 | 中兴通讯股份有限公司 | Load balancing method and system |
CN103703800A (en) * | 2013-05-08 | 2014-04-02 | 华为技术有限公司 | Cell interoperation processing method and apparatus |
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