CN110337128A - Cell falling-back method and system - Google Patents
Cell falling-back method and system Download PDFInfo
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- CN110337128A CN110337128A CN201910678861.8A CN201910678861A CN110337128A CN 110337128 A CN110337128 A CN 110337128A CN 201910678861 A CN201910678861 A CN 201910678861A CN 110337128 A CN110337128 A CN 110337128A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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Abstract
The present invention provides a kind of cell falling-back method, it include: the mapping table for configuring heterogeneous networks cell and position in the enb, its content includes the location information of each cell ID of first network, the frequency point information for having overlapping the second network and/or third network cell with the coverage area of the first network cell and overlapping region；When there is incoming call terminal, eNB obtains the GPS position information of terminal, determines that terminal falls the subdistrict frequency point information of network after rise in advance further according to the location information of overlapping region in the location information and the mapping table, and be sent to terminal；Terminal falls back to the cell according to the subdistrict frequency point, and issues page response to MSC, establishes call.The present invention also provides corresponding systems.Cell falling-back method and system of the present invention are omitted terminal and measure multiple different system cells, and the process fallen after rise by eNB instruction terminal shortens the time for falling cell after rise, improves communication efficiency, and save Internet resources.
Description
Technical field
The present invention relates to fields of communication technology, and in particular to a kind of cell falling-back method and a kind of cell fall system after rise.
Background technique
Typical CSFB (Circuit Switched Fallback, circuit domain dropping) operation flow mainly includes joint
Attachment, location updating, caller (MO) CSFB process, called (MT) CSFB process and attachment removal etc..The basic think of of CSFB scheme
Road is that terminal resides in LTE network Idle state or data service connected state, when there is voice service demand (caller or called),
It falls after rise to 2G/3G network by LTE (Long Term Evolution, long term evolution) network assistance and establishes voice service, converse
After again quickly return LTE network.
In CSFB implementation process, when mobile terminal has incoming call, eNB (evolved Node B, the node B of evolution) root
Cell information is currently located according to mobile terminal, and the falling cell ID and frequency point information of configuration are sent to mobile terminal, it is mobile whole
End carries out different system cell measurement, measurement result is sent to eNB, eNB instruction mobile terminal falls back to suitable cell；Work as shifting
The TAI (Tracking Area Identity, tracking area identification) that dynamic terminal is located at is across multiple LAI (Location Area
Identify, Location Area Identification) when, eNB provide falling cell will be it is multiple, mobile terminal needs to carry out the survey of multiple cells
Amount extends call set-up time, influences user experience.
Summary of the invention
In order at least partly solve to need to carry out the measurement of multiple cells when mobile terminal existing in the prior art is fallen after rise,
The longer technical problem of call set-up time and complete the present invention.
Solving technical solution used by present invention problem is:
The present invention provides a kind of cell falling-back method, comprising:
Configure the mapping table of heterogeneous networks cell and position in the enb, the content of the mapping table includes the
Each cell ID of one network, there is overlapping the second network and/or third network cell with the coverage area of the first network cell
Frequency point information and overlapping region location information；
When there is the 4G card of incoming call mobile terminal, eNB obtains GPS (the Global Positioning of mobile terminal
System, global positioning system) location information, weight in the GPS position information and the mapping table further according to mobile terminal
The location information in folded region determines that mobile terminal falls the subdistrict frequency point information of network after rise in advance, and is sent to mobile terminal；
Mobile terminal falls back to the cell according to the pre- subdistrict frequency point for falling network after rise, and issues page response to MSC,
Establish call.
Further, the first network is LTE network when 4G card is idle or when progress network data service, described the
Two networks and the third network are respectively the 2G network and 3G network that 4G card falls post-processing voice service after rise.
Further, heterogeneous networks cell is configured in the enb and the mapping table of position specifically includes:
Obtain the coverage area information of each 4G cell under eNB；
According to the coverage area of each 4G cell under eNB, it is small to obtain the corresponding 2G network for having overlapping with the coverage area
The frequency point information in area and the location information of overlapping region；
According to the coverage area of each 4G cell under eNB, it is small to obtain the corresponding 3G network for having overlapping with the coverage area
The frequency point information in area and the location information of overlapping region.
Further, eNB is according to the position of overlapping region in the GPS position information of mobile terminal and the mapping table
Information determines that mobile terminal falls the subdistrict frequency point information of network after rise in advance, and is sent to mobile terminal, specifically includes:
ENB is according to the location information that the GPS position information of mobile terminal inquires overlapping region in the mapping table
No includes the mobile terminal GPS location；
Such as comprising the mobile terminal GPS location, then eNB is using the corresponding subdistrict frequency point information in overlapping region as mobile terminal
The pre- subdistrict frequency point information for falling network after rise is sent to mobile terminal；
As do not included the mobile terminal GPS location, then eNB will be with the immediate overlapping region of mobile terminal GPS location
The subdistrict frequency point information that corresponding subdistrict frequency point information falls network after rise as mobile terminal in advance is sent to mobile terminal.
Further, the GPS position information of eNB acquisition mobile terminal includes:
When the 4G card for having incoming call mobile terminal, calling session control equipment is to MSC (Mobile Switching
Center, mobile switching centre) call request is issued, subsequent MSC is according to SGs (Serving General Packet Radio
Service, service universal packet wireless business business) for interface to MME sending paging request, MME passes through eNB after receiving paging request
Paging request is issued to mobile terminal, and mobile terminal is received and activated business request after paging request to eNB sending, service request
In include mobile terminal GPS position information.
According to another aspect of the present invention, the present invention also provides a kind of cells to fall system after rise, comprising: eNB, MME and movement
Terminal；
The eNB is used to configure the mapping table of heterogeneous networks cell and position, and the mapping table content includes
Each cell ID of first network, there is overlapping the second network and/or third network covered with the coverage area of the first network cell
The frequency point information of cell and the location information of overlapping region；
The eNB is also used to obtain the GPS position information of mobile terminal in the 4G card for having incoming call mobile terminal,
The location information of overlapping region determines that mobile terminal is pre- in GPS position information and the mapping table further according to mobile terminal
It falls the subdistrict frequency point information of network after rise, and is sent to mobile terminal；
The mobile terminal is used to fall back to the cell according to the pre- subdistrict frequency point for falling network after rise, and issues to MSC
Page response establishes call.
Further, the first network is LTE network when 4G card is idle or when progress network data service, described the
Two networks and the third network are respectively the 2G network and 3G network that 4G card falls post-processing voice service after rise.
Further, eNB configures the mapping table of heterogeneous networks cell and position specifically:
ENB obtains the coverage area information of its each lower 4G cell；
ENB obtains the corresponding 2G net for having overlapping with the coverage area according to the coverage area of its each lower 4G cell
The frequency point information of network cell and the location information of overlapping region；
ENB obtains the corresponding 3G net for having overlapping with the coverage area according to the coverage area of its each lower 4G cell
The frequency point information of network cell and the location information of overlapping region.
Further, eNB is also used to according to overlapping region in the GPS position information of mobile terminal and the mapping table
Location information determine that mobile terminal falls the subdistrict frequency point information of network after rise in advance, and be sent to mobile terminal, specifically:
ENB is according to the location information that the GPS position information of mobile terminal inquires overlapping region in the mapping table
No includes the mobile terminal GPS location；
Such as comprising the mobile terminal GPS location, then eNB is also used to using the corresponding subdistrict frequency point information in overlapping region as shifting
The subdistrict frequency point information that dynamic terminal falls network after rise in advance is sent to mobile terminal；
As do not included the mobile terminal GPS location, then be also used to will be immediate heavy with the mobile terminal GPS location by eNB
The subdistrict frequency point information that the folded corresponding subdistrict frequency point information in region falls network after rise as mobile terminal in advance is sent to mobile terminal.
Further, it further includes calling session control equipment, MME and MSC that cell, which falls system after rise,；ENB obtains movement
The GPS position information of terminal specifically:
When there is the 4G card of incoming call mobile terminal, calling session control equipment issues call request to MSC, with
MSC issues paging request to MME according to SGs interface afterwards, and MME is sought by eNB to mobile terminal sending after receiving paging request
When calling for asking, it includes mobile terminal in service request that mobile terminal, which is received and activated business request after paging request to eNB sending,
GPS position information.
The utility model has the advantages that
Cell falling-back method and system of the present invention fall back to 3G/2G network by CSFB in the 4G card of mobile terminal
When carrying out voice communication, according to the GPS position information of mobile terminal, pair of the heterogeneous networks cell and position that are configured from eNB
It answers relation table to directly acquire the suitable frequency point information for falling cell after rise to be fallen after rise, it is small to multiple different systems that mobile terminal is omitted
Measurement result is sent to eNB by region measurement, and eNB instruction mobile terminal falls back to the process of suitable cell, it is small to shorten falling
The time in area shortens call set-up time, improves communication efficiency, and save Internet resources.
Detailed description of the invention
Fig. 1 is a kind of flow chart for cell falling-back method that the embodiment of the present invention one provides；
Fig. 2 is the architecture diagram that a kind of cell provided by Embodiment 2 of the present invention falls system after rise；
Fig. 3 is the architecture diagram that another cell provided by Embodiment 2 of the present invention falls system after rise.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawings and examples to this
Invention is described in further detail.
Embodiment one
The present invention provides a kind of cell falling-back method, comprising:
Step S1: the mapping table of heterogeneous networks cell and position, the content of the mapping table are configured in the enb
Each cell ID including first network, there is overlapping the second network and/or third net with the coverage area of the first network cell
The frequency point information of network cell and the location information of overlapping region；
Step S2: when there is the 4G card of incoming call mobile terminal, eNB obtains the GPS position information of mobile terminal, then root
Determine that mobile terminal is fallen after rise in advance according to the location information of overlapping region in the GPS position information of mobile terminal and the mapping table
The subdistrict frequency point information of network, and it is sent to mobile terminal；
Step S3: mobile terminal falls back to the cell according to the pre- subdistrict frequency point for falling network after rise, and seeks to MSC sending
Response is exhaled, call is established.
After mobile terminal-opening, start the joint attachment flow of 4G multimode card, so that mobile terminal can pass through
CSFB process realizes voice communication；Mobile terminal 4G multimode card sends Attach Request (attach request) message to MME,
Middle parameter Attach Type (type of attachment) indicate this be a united EPS (Evolved Packet System, evolution
Grouping system)/IMSI (International Mobile Subscriber Identity, international mobile subscriber identity) is attached
Process, and parameter instruction UE have CS Fallback (circuit domain dropping) ability；MME sends SGsAP-LOCATION-
UPDATE-REQUEST (requirement of SGsAP location updating) message gives MSC/VLR (Visited Location Register, visit
Location register), it include new LAI (Location Area Identify, Location Area Identification), 4G multimode card in message
IMSI (International Mobile Subscriber Identity, international mobile subscriber identity), MME name
The parameters such as (MME mark) and Location Update Type (location updating type)；MSC/VLR stores MME information, and creates
With the SGs (Serving General Packet Radio Service, service universal packet wireless business business) of this user under MME
Association；MSC/VLR is initiated according to user information and location area information to HLR (Home Location Register, ownership position
Set register) position update flow；MSC/VLR returns to confirmation message to MME；MME sends Attach Accept, and (attachment connects
By) message to mobile terminal, adhere to by completion joint.
When there is incoming call 4G multimode card, the Call-Establish-Success rate equipment of master home is sent out according to called number to HLR
Inquiry request out；HLR feeds back MSC location information, and Call-Establish-Success rate equipment issues call request to MSC；MSC connects according to SGs
Message, which is ceased to MME, issues paging request, and MME issues paging request to mobile terminal；Mobile terminal is activated business to MME sending and is asked
It asks, while including the GPS position information of itself in service request；The upper storage location information of eNB and heterogeneous networks cell and position
Mapping table, eNB inquires corresponding pre- falling network cell frequency point according to mobile terminal GPS position information；ENB is this
Subdistrict frequency point is sent to mobile terminal；Mobile terminal falls back to the cell, issues business and establishes request, establishes call.
Further, the first network is LTE network when 4G card is idle or when progress network data service, described the
Two networks and the third network are respectively the 2G network and 3G network that 4G card falls post-processing voice service after rise.
Further, heterogeneous networks cell is configured in the enb and the mapping table of position specifically includes:
Obtain the coverage area information of each 4G cell under eNB；
According to the coverage area of each 4G cell under eNB, it is small to obtain the corresponding 2G network for having overlapping with the coverage area
The frequency point information in area and the location information of overlapping region；
According to the coverage area of each 4G cell under eNB, it is small to obtain the corresponding 3G network for having overlapping with the coverage area
The frequency point information in area and the location information of overlapping region.
The coverage area of the network cell cell coverage area ratio 4G of general 3G/2G network is wider, is carrying out the network planning
When, the information configured by each base station obtains each network cell coverage area, and by the subdistrict frequency point information of each network and again
Folded coverage area geographical location is stored in contingency table, for example, passing through the coverage area of some network cell 4G, determination is covered on
The subdistrict frequency point information of 3G network and 2G network in the coverage area is stored in corresponding contingency table, and what is be overlapped under normal circumstances covers
Lid range all includes the coverage area of entire 4G cell.
Further, eNB is according to the position of overlapping region in the GPS position information of mobile terminal and the mapping table
Information determines that mobile terminal falls the subdistrict frequency point information of network after rise in advance, and is sent to mobile terminal, specifically includes:
ENB is according to the location information that the GPS position information of mobile terminal inquires overlapping region in the mapping table
No includes the mobile terminal GPS location；
Such as comprising the mobile terminal GPS location, then eNB is using the corresponding subdistrict frequency point information in overlapping region as mobile terminal
The pre- subdistrict frequency point information for falling network after rise is sent to mobile terminal；
As do not included the mobile terminal GPS location, then eNB will be with the immediate overlapping region of mobile terminal GPS location
The subdistrict frequency point information that corresponding subdistrict frequency point information falls network after rise as mobile terminal in advance is sent to mobile terminal.
When the network cell 3G/2G is not configured in some regions, may cannot inquire in contingency table comprising the movement
The subdistrict frequency point information of nearest pre- falling network is sent to mobile whole by the position range of the overlapping of terminal GPS location at this time
End；The pre- network that falls after rise is generally selected according to carrier policy, and the cell of 3G network and/or 2G network will be corresponded to according to strategy
Frequency point information is sent to mobile terminal, such as mobile communication is typically chosen 2G network and is fallen after rise, and connection is typically chosen 3G network
It is fallen after rise；When the network cell 4G is in the frontier district of the corresponding network cell 3G/2G, the cell of corresponding two 3G/2G networks
When, the frequency point information of the two network cells 3G/2G can be sent jointly into mobile terminal simultaneously, mobile terminal selection can be at
The resident cell of function is resident.
Further, the GPS position information of eNB acquisition mobile terminal includes:
When the 4G card for having incoming call mobile terminal, calling session control equipment issues call request to MSC, then
MSC issues paging request to MME according to SGs interface, and MME is paged by eNB to mobile terminal sending after receiving paging request
When request, it includes mobile terminal in service request that mobile terminal, which is received and activated business request after paging request to eNB sending,
GPS position information.
When the 4G card for having incoming call mobile terminal, the Call-Establish-Success rate equipment of master home according to called number to
HLR issues inquiry request, and HLR feeds back MSC location information to it, and then Call-Establish-Success rate equipment issues paging request to MSC,
MSC is received and is issued paging request to MME according to SGs interface after paging request, and MME is received after paging request to mobile terminal
Issue paging request, mobile terminal is received and activated business request after paging request to eNB sending, comprising moving in service request
The request of activating business is sent MME by the GPS position information of terminal, subsequent eNB, and mobile terminal is after falling after rise successfully to MSC
Page response is issued, call is established.
Embodiment two
According to another aspect of the present invention, as shown in Fig. 2, the present invention also provides a kind of cells to fall system after rise, comprising: eNB1
With mobile terminal 2；
The eNB1 is used to configure the mapping table of heterogeneous networks cell and position, and the mapping table content includes
Each cell ID of first network, there is overlapping the second network and/or third network covered with the coverage area of the first network cell
The frequency point information of cell and the location information of overlapping region；
The eNB1 is also used in the 4G card for having incoming call mobile terminal 2, obtains the GPS location letter of mobile terminal 2
It ceases, the location information of overlapping region determines mobile whole in the GPS position information and the mapping table further according to mobile terminal 2
The pre- subdistrict frequency point information for falling network after rise in end, and it is sent to mobile terminal 2；
The mobile terminal 2 is used to fall back to the cell according to the pre- subdistrict frequency point for falling network after rise, and issues to MSC
Page response establishes call.
Further, the first network is LTE network when 4G card is idle or when progress network data service, described the
Two networks and the third network are respectively the 2G network and 3G network that 4G card falls post-processing voice service after rise.
Further, eNB1 configures the mapping table of heterogeneous networks cell and position specifically:
ENB1 obtains the coverage area information of its each lower 4G cell；
ENB1 obtains the corresponding 2G net for having overlapping with the coverage area according to the coverage area of its each lower 4G cell
The frequency point information of network cell and the location information of overlapping region；
ENB1 obtains the corresponding 3G net for having overlapping with the coverage area according to the coverage area of its each lower 4G cell
The frequency point information of network cell and the location information of overlapping region.
Further, eNB1 is also used to according to overlay region in the GPS position information of mobile terminal 2 and the mapping table
The location information in domain determines that mobile terminal 2 falls the subdistrict frequency point information of network after rise in advance, and is sent to mobile terminal 2, specifically:
ENB1 inquires the location information of overlapping region in the mapping table according to the GPS position information of mobile terminal 2
It whether include the mobile terminal GPS location；
Such as comprising the mobile terminal GPS location, then eNB1 be also used to using the corresponding subdistrict frequency point information in overlapping region as
The subdistrict frequency point information that mobile terminal 2 falls network after rise in advance is sent to mobile terminal 2；
As do not included the mobile terminal GPS location, then be also used to will be immediate heavy with the mobile terminal GPS location by eNB1
The subdistrict frequency point information that the folded corresponding subdistrict frequency point information in region falls network after rise as mobile terminal 2 in advance is sent to mobile terminal 2.
As shown in figure 3, further, cell fall after rise system further include calling session control equipment 5, MME3 and
MSC4；ENB1 is used to obtain the GPS position information of mobile terminal 2 specifically:
When there is the 4G card of incoming call mobile terminal, calling session control equipment 5 issues call request to MSC4,
Subsequent MSC4 issues paging request to MME3 according to SGs interface, and MME3 passes through eNB1 to mobile terminal after receiving paging request
When issuing paging request, mobile terminal is received and is activated business request after paging request to eNB1 sending, includes in service request
The GPS position information of mobile terminal 2.
For this system embodiment, since it is substantially corresponding with embodiment of the method, so being described relatively simple, phase
Place is closed referring to the corresponding process in preceding method embodiment one, details are not described herein.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from
In the case where mind and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a kind of cell falling-back method characterized by comprising
The mapping table of heterogeneous networks cell and position is configured in the enb, and the content of the mapping table includes the first net
Each cell ID of network, the frequency for having overlapping the second network and/or third network cell with the coverage area of the first network cell
The location information of point information and overlapping region；
When there is the 4G card of incoming call mobile terminal, eNB obtains the GPS position information of mobile terminal, further according to mobile terminal
GPS position information and the mapping table in the location information of overlapping region determine that mobile terminal falls the cell of network after rise in advance
Frequency point information, and it is sent to mobile terminal；
Mobile terminal falls back to the cell according to the pre- subdistrict frequency point for falling network after rise, and issues page response to MSC, establishes
Call.
2. cell falling-back method according to claim 1, which is characterized in that the first network be 4G card free time when or into
LTE network when row network data service, second network and the third network are respectively that 4G card falls post-processing voice after rise
The 2G network and 3G network of business.
3. cell falling-back method according to claim 2, which is characterized in that configure heterogeneous networks cell and position in the enb
The mapping table set specifically includes:
Obtain the coverage area information of each 4G cell under eNB；
According to the coverage area of each 4G cell under eNB, the corresponding network cell 2G for having overlapping with the coverage area is obtained
The location information of frequency point information and overlapping region；
According to the coverage area of each 4G cell under eNB, the corresponding 3G network cell for having overlapping with the coverage area is obtained
The location information of frequency point information and overlapping region.
4. cell falling-back method according to claim 1, which is characterized in that eNB is according to the GPS position information of mobile terminal
Determine that mobile terminal falls the subdistrict frequency point information of network after rise in advance with the location information of overlapping region in the mapping table, concurrently
Mobile terminal is given, is specifically included:
Whether eNB wraps according to the location information that the GPS position information of mobile terminal inquires overlapping region in the mapping table
Containing the mobile terminal GPS location；
Such as comprising the mobile terminal GPS location, then eNB is returned in advance using the corresponding subdistrict frequency point information in overlapping region as mobile terminal
The subdistrict frequency point information of network of being caught is sent to mobile terminal；
As do not included the mobile terminal GPS location, then eNB will be corresponding with the immediate overlapping region of mobile terminal GPS location
Subdistrict frequency point information fall the subdistrict frequency point information of network after rise in advance as mobile terminal and be sent to mobile terminal.
5. cell falling-back method described in any one of -4 according to claim 1, which is characterized in that eNB obtains mobile terminal
GPS position information includes:
When there is the 4G card of incoming call mobile terminal, calling session control equipment issues call request to MSC, then
MSC issues paging request to MME according to SGs interface, and MME is paged by eNB to mobile terminal sending after receiving paging request
Request, mobile terminal are received and are activated business request after paging request to eNB sending, include mobile terminal in service request
GPS position information.
6. a kind of cell falls system after rise characterized by comprising eNB and mobile terminal；
The eNB is used to configure the mapping table of heterogeneous networks cell and position, and the mapping table content includes first
Each cell ID of network, there are overlapping the second network covered and/or third network cell with the coverage area of the first network cell
Frequency point information and overlapping region location information；
The eNB is also used to obtain the GPS position information of mobile terminal, then root in the 4G card for having incoming call mobile terminal
Determine that mobile terminal is fallen after rise in advance according to the location information of overlapping region in the GPS position information of mobile terminal and the mapping table
The subdistrict frequency point information of network, and it is sent to mobile terminal；
The mobile terminal is used to fall back to the cell according to the pre- subdistrict frequency point for falling network after rise, and issues and page to MSC
Call is established in response.
7. cell according to claim 6 falls system after rise, which is characterized in that when the first network is the 4G card free time or into
LTE network when row network data service, second network and the third network are respectively that 4G card falls post-processing voice after rise
The 2G network and 3G network of business.
8. cell according to claim 7 falls system after rise, which is characterized in that eNB configures heterogeneous networks cell and position
Mapping table specifically:
ENB obtains the coverage area information of its each lower 4G cell；
It is small to obtain the corresponding 2G network for having overlapping with the coverage area according to the coverage area of its each lower 4G cell by eNB
The frequency point information in area and the location information of overlapping region；
It is small to obtain the corresponding 3G network for having overlapping with the coverage area according to the coverage area of its each lower 4G cell by eNB
The frequency point information in area and the location information of overlapping region.
9. cell according to claim 6 falls system after rise, which is characterized in that eNB is also used to the position GPS according to mobile terminal
The location information of overlapping region determines that mobile terminal falls the subdistrict frequency point letter of network after rise in advance in confidence breath and the mapping table
Breath, and it is sent to mobile terminal, specifically:
ENB is also used to inquire the location information of overlapping region in the mapping table according to the GPS position information of mobile terminal
It whether include the mobile terminal GPS location；
Such as comprising the mobile terminal GPS location, then eNB is also used to using the corresponding subdistrict frequency point information in overlapping region as mobile whole
The pre- subdistrict frequency point information for falling network after rise in end is sent to mobile terminal；
As do not include the mobile terminal GPS location, then eNB be also used to by with the immediate overlay region of mobile terminal GPS location
The subdistrict frequency point information that the corresponding subdistrict frequency point information in domain falls network after rise as mobile terminal in advance is sent to mobile terminal.
10. the cell according to any one of claim 6-9 falls system after rise, which is characterized in that further include calling meeting
Words control equipment, MME and MSC；The GPS position information of eNB acquisition mobile terminal specifically:
When there is the 4G card of incoming call mobile terminal, calling session control equipment issues call request to MSC, then
MSC issues paging request to MME according to SGs interface, and MME is paged by eNB to mobile terminal sending after receiving paging request
Request, mobile terminal are received and are activated business request after paging request to eNB sending, include mobile terminal in service request
GPS position information.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111314846A (en) * | 2020-02-19 | 2020-06-19 | 中国联合网络通信集团有限公司 | Mobile terminal joint attachment method and system, storage medium and mobile terminal |
| WO2021104023A1 (en) * | 2019-11-27 | 2021-06-03 | Oppo广东移动通信有限公司 | Information processing method, terminal device, network device, and storage medium |
| CN113490200A (en) * | 2021-08-17 | 2021-10-08 | 中国联合网络通信集团有限公司 | CSFB calling method, MME, electronic device and medium |
| WO2022164587A1 (en) * | 2021-01-29 | 2022-08-04 | Qualcomm Incorporated | Techniques for handling calls associated with user equipment transition from dual active mode to dual standby mode |
| US12004020B2 (en) | 2021-01-29 | 2024-06-04 | Qualcomm Incorporated | Techniques for handling calls associated with user equipment transition from dual active mode to dual standby mode |
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