CN108419230A - A kind of communication means, base station and storage medium - Google Patents
A kind of communication means, base station and storage medium Download PDFInfo
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- CN108419230A CN108419230A CN201810150940.7A CN201810150940A CN108419230A CN 108419230 A CN108419230 A CN 108419230A CN 201810150940 A CN201810150940 A CN 201810150940A CN 108419230 A CN108419230 A CN 108419230A
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- cell
- terminal
- measurement report
- base station
- target cell
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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
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
Abstract
The embodiment of the invention discloses a kind of communication means, including：Receive the measurement report that terminal reports；When carrying SRVCC instruction information in measurement report, the Current Communications Status of terminal is obtained；When the Current Communications Status of terminal is urgency traffic, it is based on measurement report, chooses the Target cell for supporting urgency communication ability；Initiate switching request from cell-of-origin to Target cell, cell-of-origin be currently cell that terminal is serviced.The embodiment of the present invention also provides a kind of base station and storage medium simultaneously.
Description
Technical field
The present invention relates to wireless communication technique more particularly to a kind of communication means in the communications field, base stations and storage to be situated between
Matter.
Background technology
With the development of the communication technology, network formats are in continuous evolution.After new network formats introduce, the standard network
Construction it is not stranghtforward, need by from hot spot region gradually to the process extensively covered.And the network system now netted
Formula remains able to service terminal (that is, user equipment), therefore usually will appear terminal in communication process from the net of different systems
When network switches the problem of voice continuity.
Single wireless voice calling continuity (SRVCC, Single Radio Voice Call Continuity) is
A kind of VoLTE voices that third generation partnership project (3GPP, 3rd Generation Partnership Project) proposes
Business contingency plan, primarily to solving when injection frequency user equipment (UE, User Equipment) is in LTE/Pre-LTE
When being moved between network and 2G/3G circuit commutative fields (CS, Circuit Switched Domain) network, how to ensure voice
The problem of call continuity, ensures injection frequency UE taking over seamlessly between the VoIP voices that IMS is controlled and the domains CS voice.It is existing
With time-division Long Term Evolution (TD-LTE, the TimeDivision-Synchronous Code disposed in a network
Division Multiple Ac cess Long Term Evolution) for network to the SRVCC processes of 2G or 3G network
It illustrates.Here, the TD-LTE terminals for being capable of providing speech business are mainly that multimode list waits for terminal (referred to hereinafter as LTE voices
(VoLTE, Voice over LTE) singly waits for terminal), VoLTE is mono- to wait for that terminal only supports a set of radio frequency, that is to say, that in same a period of time
Quarter, VoLTE was mono- waits for that terminal can only support one mode, and according to 3GPP standards, VoLTE is mono- to wait for that terminal should support circuits domain dropping
(CSFB, Circuit Switched Fallback) and second generation mobile communication technology (2G, 2-
Generationwireless telephone technology)/3rd generation mobile communication technology (3G, 3rd-
Generation) pattern.When VoLTE is mono- when terminal is under the VoLTE network coverages, VoLTE is mono- to wait for terminal works in VoLTE
Under pattern；When VoLTE is mono- when terminal is under the CSFB network coverages for not supporting VoLTE, VoLTE is mono- to wait for that terminal works exist
Under CSFB patterns；When VoLTE is mono- when terminal is under the 2G/3G network coverages, VoLTE is mono- to wait for terminal works in 2G/3G patterns
Under；According to 3GPP standards, wait for that terminal is moved to 2G/3G in VoLTE calls carry out from the overlay areas VoLTE when VoLTE is mono-
When overlay area, it can will be conversed by SRVCC technologies and switch to 2G/3G CS calls from VoLTE speeches to keep speech continuous
Property.
However, in SRVCC technologies, UE reports it to measure different system cell by measurement event (generally B2 events)
(the current LTE system signal strength of B2 event requirements is less than some threshold value to signal strength, and the different system cell signal measured is strong
Degree is higher than some threshold value).It has a problem that in this way, emergency call may not be supported by existing in the different system cell that UE is reported
Cell, such base station to LTE core network initiate switching request when, can cause the emergency call carried out on VoLTE because switching
Not the case where cell of emergency call not being supported to one and being failed.
Invention content
In view of this, the main purpose of the present invention is to provide a kind of communication means, base station and storage medium, can improve
The communication success rate of urgency traffic.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
An embodiment of the present invention provides a kind of communication means, including：
Receive the measurement report that terminal reports；
When carrying single wireless voice calling continuity SRVCC instruction information in the measurement report, described in acquisition
The Current Communications Status of terminal；
When the Current Communications Status of the terminal is urgency traffic, it is based on the measurement report, it is urgent logical to choose support
The Target cell of letter ability；
The switching request from cell-of-origin to Target cell is initiated, the cell-of-origin is currently that the terminal is serviced
Cell.
In the above scheme, described to be based on the measurement report, choose the Target cell for supporting urgency communication ability, packet
It includes：
According to default cell emergency data information, is determined from the measurement report and support the candidate of urgency communication ability small
Area；
The Target cell for meeting switching is chosen from the candidate cell.
In the above scheme, described to be based on the measurement report, choose the Target cell for supporting urgency communication ability, packet
It includes：
From the measurement report, the candidate cell for having and supporting urgency communication ability label is determined；
The Target cell for meeting switching is chosen from the candidate cell.
In the above scheme, after switching request of the initiation from cell-of-origin to Target cell, the method further includes：
Receive the handoff response that the core net is sent；
When the handoff response receives for switching request, the switching command is sent to the terminal, is realized from described
Switching of the cell-of-origin to the Target cell.
In the above scheme, before the measurement report that the reception terminal reports, the method further includes：
Sending measuring parameter configuration is to the terminal.
In the above scheme, the measurement report for receiving terminal and reporting, including：
It receives the terminal and is based on the measurement parameter configuration information, the measurement report measured.
An embodiment of the present invention provides a kind of base stations, including：
Receiving unit, the measurement report reported for receiving terminal；
Acquiring unit carries single wireless voice calling continuity SRVCC instruction letters for working as in the measurement report
When breath, the Current Communications Status of the terminal is obtained；
Selection unit, for when the Current Communications Status of the terminal is urgency traffic, being based on the measurement report, choosing
Take the Target cell for supporting urgency communication ability；
Transmission unit, for initiating switching request from cell-of-origin to Target cell, the cell-of-origin be currently described in
The cell that terminal is serviced.
In above-mentioned base station, the selection unit is specifically used for according to cell emergency data information is preset, from the measurement
The candidate cell for supporting urgency communication ability is determined in report；It is small that the target for meeting and switching is chosen from the candidate cell
Area.
In above-mentioned base station, the selection unit is specifically used for from the measurement report, and determining has support urgent logical
Believe the candidate cell of ability label；The Target cell for meeting switching is chosen from the candidate cell.
In above-mentioned base station, the receiving unit is additionally operable to switching request of the initiation from cell-of-origin to Target cell
Later, the handoff response that the core net is sent is received；
The transmission unit is additionally operable to, when the handoff response receives for switching request, send the switching command extremely
The terminal is realized from the cell-of-origin to the switching of the Target cell.
In above-mentioned base station, the transmission unit is additionally operable to before the measurement report that the reception terminal reports, issues survey
Parameter configuration is measured to the terminal.
In above-mentioned base station, the receiving unit is specifically used for receiving the terminal based on the measurement parameter with confidence
Breath, the measurement report measured.
The embodiment of the present invention additionally provides a kind of base station, including：
Receiver, transmitter, processor and the reception for being stored with the processor-executable instruction, the receiver
The storage medium for the data that data and the transmitter are sent, the receiver, the transmitter and the storage medium pass through
Communication bus relies on the processor and executes operation, when described instruction is executed by the processor, executes above-mentioned communication party
Method.
An embodiment of the present invention provides a kind of computer storage medias, are stored with executable instruction, when the executable finger
When order is executed by one or more processors, the processor executes above-mentioned communication means.
An embodiment of the present invention provides a kind of communication means, base station and storage medium, base station receives the measurement that terminal reports
Report；When carrying SRVCC instruction information in measurement report, the Current Communications Status of terminal is obtained；Current when terminal is led to
When letter state is urgency traffic, it is based on measurement report, chooses the Target cell for supporting urgency communication ability；Initiate from cell-of-origin to
The switching request of Target cell, cell-of-origin be currently cell that terminal is serviced.Using above-mentioned technic relization scheme, due to
Base station when the measurement report for receiving terminal, the base station can to carrying out the terminal of urgency traffic or communication into
When huge determine is sentenced in the switching of row cell, it is contemplated that whether candidate cell supports the factor of urgency communication ability, so that
The terminal for carrying out urgency traffic, after carrying out cell switching, it can also be ensured that the continuity of urgency traffic is avoided due to cell
It is switched to the communication disruption for the cell for not supporting urgency communication, to improve the communication success rate of urgency traffic.
Description of the drawings
Fig. 1 is a kind of different System Network Architecture schematic diagram provided in an embodiment of the present invention；
Fig. 2 is a kind of illustrative switching flow interaction figure provided in an embodiment of the present invention；
Fig. 3 is a kind of flow chart one of communication means provided in an embodiment of the present invention；
Fig. 4 is a kind of flowchart 2 of communication means provided in an embodiment of the present invention；
Fig. 5 is a kind of interaction figure of illustrative communication means provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram one of base station provided in an embodiment of the present invention；
Fig. 7 is a kind of structural schematic diagram two of base station provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is the purpose only merely for description specific embodiment, is not intended to be limiting
The present invention.In the embodiment of the present invention and "an" of singulative used in the attached claims, " described " and "the"
It is also intended to including plural form, unless context clearly shows that other meanings.
As shown in Figure 1, it is a kind of different System Network Architecture schematic diagram provided in an embodiment of the present invention.In the network of Fig. 1
In framework, different grid includes high standard network (for example, long term evolution (LTE, Long Term Evolution)) standard net
Network (by taking 2G/3G networks as an example).As shown in Figure 1, high standard network is by taking LTE network as an example, including CN network elements：Mobile management entity
(MME, Mobility Management Entity) 111 and Service Gateway (S-GM, Serving GateWay) 112, and
RAN network elements (i.e. E-UTRAN) 113.Low standard network by taking 2G/3G networks as an example, including CN network elements mobile switching centre (MSC,
Mobile Switching Center) 121 and RAN network elements (for example, GERAN/UTRAN) 122.
Wherein, in the lte networks, E-UTRAN includes：Evolved base station (eNB, eNode B).In 2G networks, RAN nets
Member includes base station (BS, Base Station) and base station controller (BSC, Base Station Controller)；In 3G network
In, RAN network elements include base station (NB, Node B) and radio network controller (RNC, Radio Network Controller).
Based on the network architecture shown in FIG. 1, different grid further includes IP multimedia subsystem (IMS, IP
Multimedia subsystem) 130, IMS 130 can support packet convert and circuit conversion, with for SRVCC realization branch is provided
It holds.
In embodiments of the present invention, terminal 140 (also referred to as user equipment (UE)) can be in 2G/3G networks and LTE network
Between switch, when terminal 140 cuts 2G or when 3G network, eNB 113 is right according to the terminal 140 and MME 111 from LTE network
The tenability of SRVCC starts SRVCC flows, to ensure that the continuity of speech business, wherein MME 111 can be supported at itself
When SRVCC abilities, in switching or initial context Establishing process, request (INITIAL is established using initial context
CONTEXT SETUP REQUEST) and switching request (HANDOVER REQUEST) message notify the terminals 140 of eNB 113
SRVCC ability informations.The SRVCC ability informations of terminal 140 be terminal attachment (attach) or tracking area update (TAU,
Tracking Area Update) in flow, attach request (attach request) or TAU is utilized to ask (TAU
Request) it is sent to MME's 111.
Illustratively, for from the SRVCC flows that LTE network switches 2G/3G networks, as shown in Fig. 2, 1, UE is to E-
UTRAN (source base station) sends measurement report；2, E-UTRAN judgements carry out carrying out SRVCC switchings to 2G/3G, and transmission switches to
GERAN/UTRAN's handovers request to MME；The MME carries out the separation of voice bearer and Deta bearer, proceeds to cutting for the domains CS
It changes；3, the switching that domain to the domains CS packet switch (PS, Packet switching technology) are sent to MSC Server is asked
It asks；4, MSC Server negotiate to complete the foundation of 2G/3G wireless system switching circuits with target GERAN/UTRAN；5、MSC
Server initiates voice conversation transfer transmission information to IMS；6, IMS carry out voice conversation update and user plane carrying more
Newly；7, switching response messages of the MSC Server to MME transmission ps domains to the domains CS；8, MME sends handoff response to enodeB and disappears
Breath；9, enodeB sends switching command message to UE；10, UE executes switching command.
It should be noted that in the case where target network (such as GSM/WCDMA networks) is supported and terminal is supported,
The switching of SRVCC simultaneously may be with the switching of ps domain to ps domain.The S3/S4 that the switching of ps domain to ps domain will be related to network connects
Mouth or gn interface；The switching for being carried out at the same time ps domain to ps domain may make the data service in LTE network such as web browsing in target network
It is kept in network continuous.
Communication means provided in an embodiment of the present invention is to be based on above-mentioned Fig. 1 System Network Architecture, is carrying out SRVCC flows
In the process, the communication means of proposition carried out for source base station side.
Embodiment one
An embodiment of the present invention provides a kind of communication means, as shown in figure 3, being applied to source base station side, this method can wrap
It includes：
S101, the measurement report that terminal reports is received.
A kind of application scenarios of communication means provided in an embodiment of the present invention can be：Terminal (i.e. UE) is in mobile process
In, when the current area (cell-of-origin) where from itself is moved to another cell (Target cell), carry out cell switching.
It should be noted that the network environment that the embodiment of the present invention is realized is LTE network.
Optionally, the terminal in the embodiment of the present invention can be the electronic equipment with wireless communication function, for example, hand
The equipment such as machine, tablet, the embodiment of the present invention are not restricted.
In embodiments of the present invention, due to the movement of terminal, the serving cell for resulting in terminal needs to switch from cell-of-origin
To Target cell, at this moment the source base station (corresponding with cell-of-origin) of service terminal will inform cutting for Target cell to be carried out to terminal
It changes, then, terminal can carry out random access procedure to Target cell, and in this handoff procedure, the present invention
Terminal and MME in embodiment have the tenability to SRVCC, can realize above-mentioned handoff procedure by SRVCC technologies.
In embodiments of the present invention, source base station is the determination or choosing that Target cell is carried out by the measurement report that terminal reports
It takes, i.e., source base station can receive the measurement report that terminal reports.Before this, it should be noted that in embodiments of the present invention,
The flow of switching implements：Source base station sending measuring parameter configuration is to terminal；Terminal matches confidence according to measurement parameter
Breath, measures, obtains measurement report, then the terminal reporting measurement reports to source base station (i.e. source base station sending measuring parameter
It configures to terminal；Source base station receives terminal and is based on measurement parameter configuration information, the measurement report measured).Namely
It says, terminal receives the measuring configuration message that source base station is sent；Terminal is based on measuring configuration message, carries out the measurement of neighboring community,
Obtain measurement report；Measurement report is reported to source base station by terminal；After SRVCC switching flows, terminal receives source base station base
In the switching command that measurement report is sent；Terminal carries out the random access procedure of Target cell according to switching command.
In embodiments of the present invention, LTE switchings need UE report measurement results (i.e. measurement report), and week can be divided by reporting
Phase property is reported to be reported with event triggering property, wherein and it periodically reports and is configured by base station, the direct report measurement results of UE.Thing
Part triggering reports the event and the event of alien frequencies system and the event of different system being divided into as same display system.
The type of lower common leave of absence triggering described herein.
A1：Cell-of-origin is better than certain thresholding；This event can be used for closing the measurement of certain cells；
A2：Cell-of-origin is worse than certain thresholding；This event can be used for opening the measurement of certain cells, because of this event
The operations such as may switch after generation；
A3：Adjacent cell is better than the certain thresholding in cell-of-origin；
A4：Adjacent cell is better than certain thresholding；
A5：Cell-of-origin is worse than certain thresholding and adjacent cell is better than certain thresholding；
B1：Different system adjacent cell quality is higher than certain thresholding；
B2：Cell-of-origin quality is less than certain thresholding and different system adjacent cell quality is higher than certain thresholding.
In embodiments of the present invention, the event triggering that triggering terminal measures can be the trigger event of different system, example
Such as B2 events.
It should be noted that in embodiments of the present invention, switching, different-frequency measure in LTE system start or stop door
Limit and transport mode translations etc. are all to rely on the information in RRC Connection Reconfiguration signalings to hold
Row, UE are made decisions by testing the level of cell-of-origin and adjacent area, and hair measurement report can be gone up after meeting condition.Different event meeting
The upper measurement report for sending out different, one and only one MeasId of each measurement report, a MeasId correspond to an event.Example
Such as, MeasId1 is corresponded to corresponds to 4-3 redirections with frequency A3, MeasId14, and MeasId15 corresponds to alien frequencies A1 events, and MeasId7 is corresponded to
Alien frequencies A2 events, MeasId14 correspond to alien frequencies A3 events, and MeasId13 corresponds to alien frequencies A5 events, and it is strong that MeasId9 corresponds to alien frequencies MR
Adjacent area reports.Here, terminal is after having obtained measurement report and having reported, after source base station switches over judgement, finally by
Source base station issues the RRC Connection Reconfiguration (switching command) of switching command.Then, terminal
According to switching command, random access request is sent to the corresponding target BS of Target cell, into random access procedure.
S102, when carried in measurement report SRVCC indicate information when, obtain the Current Communications Status of terminal.
For source base station after receiving the measurement report that terminal reports, source base station needs switch over judgement, choose mesh
Mark cell.In embodiments of the present invention, due to that may be SRVCC measurement reports in measurement report, it is also possible to be measured for non-SRVCC
Report, therefore, source base station needs to carry out measurement report preliminary judgement, determines the type of measurement report, here, is reported when measuring
When carrying SRVCC instruction information in announcement, it is characterized as SRVCC measurement reports；And it is indicated when not carrying SRVCC in measurement report
When information, it is characterized as non-SRVCC measurement reports.Then, source base station is directed to SRVCC measurement reports, needs to consider using SRVCC
During technology switches over, the continuity of urgency traffic or urgency communication.Therefore, source base station is in determining measurement report
When carrying SRVCC instruction information, it is thus necessary to determine that the current communications status of the corresponding terminal of measurement report is further carried out and cuts
Change judgement.
It should be noted that in embodiments of the present invention, SRVCC instructions information is the ability information that characterization supports SRVCC,
The embodiment of the present invention is not restricted the forms of characterization of SRVCC instruction information.
Further, in embodiments of the present invention, when not carrying SRVCC instruction information in measurement report, source base station
Just according to measurement result, the good cell of selection signal is that Target cell switches over.
S103, when the Current Communications Status of terminal be urgency traffic when, be based on measurement report, choose support urgency communication energy
The Target cell of power.
When carrying SRVCC instruction information in measurement report, source base station needs to obtain the Current Communications Status of terminal, sentences
Whether disconnected be currently the state in urgency communication.That is, in embodiments of the present invention, source base station is receiving measurement report
When accusing and judging to carry SRVCC instruction information after measurement report, need to judge current whether urgent electricity is carried out on VoLTE
The communication of words, when the Current Communications Status of terminal is urgency traffic, to ensure that the continuity of call, the source base station need to carry out
Support the screening of urgency communication ability cell；And when the Current Communications Status of terminal is urgency traffic, source base station directly carries out
The SRVCC flows of cell switching.
In embodiments of the present invention, when the Current Communications Status of terminal is urgency traffic, source base station can be based on measuring
Report is chosen from the neighboring community measured in measurement report and supports that the cell of urgency communication ability is Target cell.
It should be noted that terminal is reported to the signal for the neighboring community for carrying the terminal in the measurement report of source base station
The measurement parameters such as strength information, subdistrict frequency point information, in source base station judgement, there is currently the logical of emergency call is carried out on VoLTE
When letter, which needs to choose the cell for supporting urgency communication ability from the neighboring community of measurement as Target cell.
The embodiment of the present invention does not limit the mode that source base station chooses Target cell.
In some embodiments of the invention, source base station can be according to default cell emergency data information, from measurement report
The middle determining candidate cell for supporting urgency communication ability；Then, the Target cell for meeting switching then is chosen from candidate cell.
Here, default cell emergency data information is stored on source base station, the default cell emergency data information representation source
Cell in the coverage area of base station supports the data of urgency communication situation.It is disposed in the source base station of the embodiment of the present invention
When, so that it may the peripheral cell of the source base station to be written the support situation of emergency call to the database of the source base station, obtain
Default cell emergency data information.In this way, when source base station judges that the Current Communications Status of terminal is urgency traffic, the source base
It stands and is just compared from the cell measured in measurement report and the cell of support urgency communication in default cell emergency data information,
The candidate cell for supporting urgency communication is selected, then load information of basis signal intensity or cell etc. is true from the candidate cell
Make Target cell.
Wherein, it may include the cell for supporting urgency communication to preset in cell emergency data information, as long as in this way, source base station
The cell with default cell emergency data information matches is found from the neighboring community of measurement.
In some embodiments of the invention, source base station can also determine to have and support urgency communication from measurement report
The candidate cell of ability label；Then the Target cell for meeting switching is chosen from candidate cell again.
It should be noted that in the present invention is implemented, can just be marked when terminal measures can support promptly
The cell of communication has and supports urgency communication ability label, in this way, source base station can be from measurement report, determination has
Support the candidate cell of urgency communication ability label；Then the Target cell for meeting switching is chosen from candidate cell again.
Wherein, have and support urgency communication ability label that can be arranged with various modes such as number, letter or images, this
Inventive embodiments are not restricted.For example, the characterization of urgency communication ability label 1 supports urgency communication, 0 table of urgency communication ability label
Sign does not support urgency communication.
Further, in embodiments of the present invention, it when source base station detects neighboring community's situation variation, is managed by backstage
Reason system is updated the default cell emergency data information of source base station, the emergency call of update source base station peripheral cell or tight
The support situation suddenly communicated.
S104, switching request from cell-of-origin to Target cell is initiated, cell-of-origin is that be currently that terminal is serviced small
Area.
Source base station is based on measurement report, and after choosing the Target cell for supporting urgency communication ability, which determines
It is switched over to the Target cell, then, which just sends the switching request from cell-of-origin to Target cell, source to MME
Cell be currently cell that terminal is serviced.Then, MME by with MSC, the communication of target BS and IMS, to source base station
Feedback is directed to the handoff response of switching request, to realize that cell switches.
Further, after S104, as shown in figure 4, a kind of communication means provided in an embodiment of the present invention can also wrap
It includes：S105-S106.It is as follows：
S105, the handoff response that core net is sent is received.
S106, when handoff response receives for switching request, send switching command to terminal, realize from cell-of-origin to target
The switching of cell.
Source base station determines to switch over to the Target cell, and then, which just sends to MME from cell-of-origin to target
The switching request of cell, cell-of-origin be currently cell that terminal is serviced.Then, MME by with MSC, target BS and
The communication of IMS, to source base station feedback for the handoff response of switching request, i.e. source base station receives cutting for core net (MME) transmission
Response is changed, when handoff response receives for switching request, which sends switching command to terminal, which can execute
Switching command realizes the switching from cell-of-origin to Target cell.
Illustratively, as shown in figure 5, communication means provided in an embodiment of the present invention includes：
S201, source base station sending measuring parameter configuration to terminal.
S202, terminal measure according to measurement parameter configuration information, obtain measurement report.
S203, terminal reporting measurement reports to source base station.
S204, when carried in measurement report SRVCC indicate information when, source base station obtain terminal Current Communications Status.
S205, when the Current Communications Status of terminal is urgency traffic, source base station is based on measurement report, choose support it is urgent
The Target cell of communication capacity.
S206, source base station initiate switching request from cell-of-origin to Target cell to core net, cell-of-origin be currently eventually
Hold the cell serviced.
S207, core net send handoff response to source base station.
S208, when handoff response receives for switching request, source base station sends switching command to terminal.
S209, terminal execute switching command, realize the switching from cell-of-origin to Target cell.
It is understood that since base station is when the measurement report for receiving terminal, the base station can into
The terminal of row urgency traffic or communication is when huge determine is sentenced in progress cell switching, it is contemplated that whether candidate cell is supported promptly logical
The factor of letter ability, so that the terminal of urgency traffic is being carried out, after carrying out cell switching, it can also be ensured that urgent logical
The continuity of words is avoided since cell is switched to the communication disruption for the cell for not supporting urgency communication, urgent to improve
The communication success rate of call.
Embodiment two
Under the same inventive concept of embodiment one, as shown in fig. 6, an embodiment of the present invention provides a kind of base station 1, the base
It stands and 1 may include：
Receiving unit 10, the measurement report reported for receiving terminal；
Acquiring unit 11, for when carrying SRVCC instruction information in the measurement report, obtaining working as the terminal
Preceding communications status；
Selection unit 12, for when the Current Communications Status of the terminal is urgency traffic, being based on the measurement report,
Choose the Target cell for supporting urgency communication ability；
Transmission unit 13, for initiating switching request from cell-of-origin to Target cell, the cell-of-origin be currently institute
State the cell that terminal is serviced.
In some embodiments of the invention, the selection unit 12 is specifically used for according to default cell emergency data letter
Breath determines the candidate cell for supporting urgency communication ability from the measurement report；It chooses to meet from the candidate cell and cut
The Target cell changed.
In some embodiments of the invention, the selection unit 12 is specifically used for from the measurement report, determines tool
There is the candidate cell for supporting urgency communication ability label；The Target cell for meeting switching is chosen from the candidate cell.
In some embodiments of the invention, it is small from cell-of-origin to target to be additionally operable to the initiation for the receiving unit 10
After the switching request in area, the handoff response that the core net is sent is received；
The transmission unit 13 is additionally operable to, when the handoff response receives for switching request, send the switching command
To the terminal, realize from the cell-of-origin to the switching of the Target cell.
In some embodiments of the invention, the transmission unit 13 is additionally operable to the measurement report that the reception terminal reports
Before reporting to, sending measuring parameter configuration to the terminal.
In some embodiments of the invention, the receiving unit 10 is specifically used for receiving the terminal based on the survey
Measure parameter configuration, the measurement report measured.
In practical applications, above-mentioned acquiring unit 11 and selection unit 12 can be realized by the processor 14 on base station 1,
Specially central processing unit (CPU, Central Processing Unit), microprocessor (MPU, Microprocessor
Unit), digital signal processor (DSP, Digital Signal Processing) or field programmable gate array (FPGA,
Field Programmable Gate Array) etc. realizations；Receiving unit 10 can be realized by receiver 15；Transmission unit 13
It can be realized by transmitter 16.
As shown in fig. 7, the embodiment of the present invention additionally provides a kind of base station, which may include：
Receiver 15, transmitter 16, processor 14 and it is stored with 14 executable instruction of the processor, the receiver
The storage medium 17 for the data that the data of 15 reception and the transmitter 16 are sent, the receiver 15, the transmitter 16
The processor 14 is relied on by communication bus 18 with the storage medium 17 and executes operation, when described instruction is by the processor
When 14 execution, the communication means described in above-described embodiment one is executed.
It should be noted that when practical application, the various components in base station are coupled by communication bus 18.It can manage
Solution, communication bus 18 is for realizing the connection communication between these components.Communication bus 18 also wraps in addition to including data/address bus
Include power bus, controlling bus and status signal bus in addition.But for the sake of clear explanation, various buses are all marked in the figure 7
For communication bus 18.
It should be noted that the base station in the embodiment of the present invention is RAN network elements shown in Fig. 1, the embodiment of the present invention is not
It is restricted.
It is understood that since base station is when the measurement report for receiving terminal, the base station can into
The terminal of row urgency traffic or communication is when huge determine is sentenced in progress cell switching, it is contemplated that whether candidate cell is supported promptly logical
The factor of letter ability, so that the terminal of urgency traffic is being carried out, after carrying out cell switching, it can also be ensured that urgent logical
The continuity of words is avoided since cell is switched to the communication disruption for the cell for not supporting urgency communication, urgent to improve
The communication success rate of call.
An embodiment of the present invention provides a kind of computer storage medias, are stored with executable instruction, when the executable finger
When order is executed by one or more processors, the processor executes the communication means described in above-described embodiment one.
Wherein, computer readable storage medium can be magnetic RAM (ferromagnetic random
Access memory, FRAM), read-only memory (Read Only Memory, ROM), programmable read only memory
(Programmable Read-Only Memory, PROM), Erasable Programmable Read Only Memory EPROM (Erasable
Programmable Read-Only Memory, EPROM), electrically erasable programmable read-only memory (Electrically
Erasable Programmable Read-Only Memory, EEPROM), flash memory (Flash Memory), magnetic table
The memories such as face memory, CD or CD-ROM (Compact Disc Read-Only Memory, CD-ROM).
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (14)
1. a kind of communication means, which is characterized in that including：
Receive the measurement report that terminal reports；
When carrying single wireless voice calling continuity SRVCC instruction information in the measurement report, the terminal is obtained
Current Communications Status；
When the Current Communications Status of the terminal is urgency traffic, it is based on the measurement report, chooses and supports urgency communication energy
The Target cell of power；
Initiate switching request from cell-of-origin to Target cell, the cell-of-origin is that be currently that the terminal is serviced small
Area.
2. according to the method described in claim 1, it is characterized in that, described be based on the measurement report, selection is supported urgent logical
The Target cell of letter ability, including：
According to default cell emergency data information, the candidate cell for supporting urgency communication ability is determined from the measurement report；
The Target cell for meeting switching is chosen from the candidate cell.
3. according to the method described in claim 1, it is characterized in that, described be based on the measurement report, selection is supported urgent logical
The Target cell of letter ability, including：
From the measurement report, the candidate cell for having and supporting urgency communication ability label is determined；
The Target cell for meeting switching is chosen from the candidate cell.
4. method according to any one of claims 1 to 3, which is characterized in that the initiation is from cell-of-origin to Target cell
Switching request after, the method further includes：
Receive the handoff response that the core net is sent；
When the handoff response receives for switching request, the switching command is sent to the terminal, is realized small from the source
Switching of the area to the Target cell.
5. method according to any one of claims 1 to 3, which is characterized in that the measurement report for receiving terminal and reporting
Before, the method further includes：
Sending measuring parameter configuration is to the terminal.
6. according to the method described in claim 5, it is characterized in that, described receive the measurement report that reports of terminal, including：
It receives the terminal and is based on the measurement parameter configuration information, the measurement report measured.
7. a kind of base station, which is characterized in that including：
Receiving unit, the measurement report reported for receiving terminal；
Acquiring unit, for when carrying single wireless voice calling continuity SRVCC in the measurement report and indicating information,
Obtain the Current Communications Status of the terminal；
Selection unit chooses branch for when the Current Communications Status of the terminal is urgency traffic, being based on the measurement report
Hold the Target cell of urgency communication ability；
Transmission unit, for initiating switching request from cell-of-origin to Target cell, the cell-of-origin be currently the terminal
The cell serviced.
8. base station according to claim 7, which is characterized in that
The selection unit is specifically used for, according to cell emergency data information is preset, determining that support is tight from the measurement report
The candidate cell of anxious communication capacity；The Target cell for meeting switching is chosen from the candidate cell.
9. base station according to claim 7, which is characterized in that
The selection unit is specifically used for from the measurement report, determines the candidate for having and supporting urgency communication ability label
Cell；The Target cell for meeting switching is chosen from the candidate cell.
10. base station according to any one of claims 7 to 9, which is characterized in that
The receiving unit is additionally operable to after switching request of the initiation from cell-of-origin to Target cell, receives the core
Net the handoff response sent；
The transmission unit is additionally operable to when the handoff response receives for switching request, sends the switching command to described
Terminal is realized from the cell-of-origin to the switching of the Target cell.
11. base station according to any one of claims 7 to 9, which is characterized in that
The transmission unit is additionally operable to before the measurement report that reports of reception terminal, and sending measuring parameter configuration is to described
Terminal.
12. base station according to claim 11, which is characterized in that
The receiving unit is specifically used for receiving the terminal based on the measurement parameter configuration information, measures
The measurement report.
13. a kind of base station, which is characterized in that including：
Receiver, transmitter, processor and be stored with the processor-executable instruction, the receiver reception data
The storage medium of the data sent with the transmitter, the receiver, the transmitter and the storage medium pass through communication
Bus relies on the processor and executes operation, when described instruction is executed by the processor, execute above-mentioned claim 1 to
6 any one of them communication means.
14. a kind of computer storage media, which is characterized in that executable instruction is stored with, when the executable instruction is by one
Or multiple processors, when execute, the processor executes claim 1 to 6 any one of them communication means.
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