CN110493889A - RRC connection reconstruction method, restoration methods, computer readable storage medium and base station - Google Patents
RRC connection reconstruction method, restoration methods, computer readable storage medium and base station Download PDFInfo
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- CN110493889A CN110493889A CN201910853251.7A CN201910853251A CN110493889A CN 110493889 A CN110493889 A CN 110493889A CN 201910853251 A CN201910853251 A CN 201910853251A CN 110493889 A CN110493889 A CN 110493889A
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- rrc connection
- base station
- core net
- connection reconstruction
- pdcp
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
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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
- H04W36/0055—Transmission or use of information for re-establishing the radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
Abstract
A kind of RRC connection reconstruction method, restoration methods, computer readable storage medium and base station.The method for reconstructing includes: to obtain the status information of current connected core net when receiving the RRC connection reconstruction request of UE transmission；Based on the status information of acquired core net, judge whether to adjust the core net that the UE is accessed；The RRC connection between the UE is rebuild based on judging result.Using above scheme, better network service can be provided for UE when UE triggers RRC connection reconstruction.
Description
Technical field
The present invention relates to fields of communication technology, and in particular to a kind of RRC connection reconstruction method, restoration methods, computer can
Read storage medium and base station.
Background technique
Currently, the base station of long term evolution (Long Term Evolution, LTE) usually connects the core net (EPC) of LTE.
With the continuous development of mobile communication, the 5th third-generation mobile communication (5G) technology, the i.e. number with bigger data capacity and faster
According to new wireless (New Radio Access Technology in 3GPP, NR) technology of processing speed, user can satisfy more
The demand and the smaller propagation delay time of reply of big data quantity.
The introducing of 5G needs operator to update existing access net and core net, this needs to spend very high cost.Operation
Quotient in order to be multiplexed existing wireless access network equipment (i.e. base station) as far as possible, it is expected that the base station of LTE has access to the core net of 5G
(5GC) thus can not only make full use of existing wireless access network equipment, provide it is also possible that user enjoys 5G core net
New demand servicing.
LTE base station can connect simultaneously LTE core net and 5G core net when, user terminal (User
Equipment, UE) reside in the base station jurisdiction district.When the UE of connected state triggers RRC connection reconstruction, according to existing heavy
Process is built, the core net that UE is accessed before still accessing, the i.e. core net of LTE, eventually leading to network can not provide more for UE
Good service.
Summary of the invention
The problem to be solved in the present invention is how for UE to provide better network service when UE triggers RRC connection reconstruction.
To solve the above problems, the embodiment of the invention provides a kind of RRC connection reconstruction methods, which comprises when
When receiving the RRC connection reconstruction request of UE transmission, the status information of current connected core net is obtained；Based on acquired
The status information of core net judges whether to adjust the core net that the UE is accessed；Based on judging result rebuild with the UE it
Between RRC connection.
Optionally, the status information of the current connected core net includes: the load of current connected core net
Status information.
Optionally, the RRC connection rebuild based on judging result between the UE, comprising: described in determining adjustment
When the core net that UE is accessed, network switching request is sent to core net adjusted, includes: institute in the network switching request
State the identification information of UE；When receiving the network switching request confirmation message that the core net adjusted is sent, Xiang Suoshu
UE sends RRC connection reconstruction message, includes: the identification information of the core net adjusted in the RRC connection reconstruction message；
When receiving the RRC connection reestablishment completion message that the UE is sent, the RRC connection between the UE is rebuild.
Optionally, in the network switching request further include: be the identification information of the core net of UE service before adjustment.
Optionally, the core net adjusted is by obtaining the UE's before adjustment for the UE core net serviced
After context, the network switching request confirmation message is sent.
Optionally, in the RRC connection reconstruction message further include: the instruction information of PDCP type.
Optionally, the PDCP type includes: LTE PDCP and NR PDCP.
Optionally, the RRC connection rebuild between the UE based on judging result include: when determine not adjust it is described
When the core net that UE is accessed, Xiang Suoshu UE sends RRC connection reconstruction message；When receiving, the RRC connection that the UE is sent is heavy
When building completion message, the RRC connection between the UE is rebuild.
The embodiment of the invention also provides a kind of RRC connection restoration methods, which comprises when receive UE transmission
When RRC connection recovery request, the status information of current connected core net is obtained；State letter based on acquired core net
Breath, judges whether to adjust the core net that the UE is accessed；Restore the RRC connection between the UE based on judging result.
Optionally, the status information of the current connected core net includes: the load of current connected core net
Status information.
Optionally, the RRC connection restored between the UE based on judging result, comprising: described in determining adjustment
When the core net that UE is accessed, network switching request is sent to core net adjusted, includes: institute in the network switching request
State the identification information of UE；When receiving the network switching request confirmation message that the core net adjusted is sent, Xiang Suoshu
UE sends RRC connection and restores message, includes: the type information of the core net adjusted in the RRC connection recovery message；
When receiving the RRC connection recovery completion message that the UE is sent, restore the RRC connection between the UE.
Optionally, in the network switching request further include: be the network element ID of the core net of UE service before adjustment
Information.
Optionally, the core net adjusted obtains institute by the network element before adjustment for the UE core net serviced
After the context for stating UE, the network switching request confirmation message is sent.
Optionally, the RRC connection restores in message further include: the instruction information of modification PDCP type.
Optionally, the PDCP type includes: LTE PDCP or NR PDCP.
Optionally, the RRC connection restored between the UE based on judging result include: when determine not adjust it is described
When the core net that UE is accessed, Xiang Suoshu UE sends RRC connection and restores message again；When the RRC connection for receiving the UE transmission
When restoring to complete message, restore the RRC connection between the UE.
The embodiment of the invention also provides a kind of base station, the base station includes: acquiring unit, receives UE transmission suitable for working as
RRC connection reconstruction request when, obtain the status information of current connected core net；Judging unit is suitable for based on acquired
The status information of core net judge whether to adjust the core net that the UE is accessed；Reconstruction unit is suitable for being based on judging result
Rebuild the RRC connection between the UE.
Optionally, the status information for the current connected core net that the acquiring unit obtains includes: current connected
Core net load state information.
Optionally, the reconstruction unit, comprising: the first transmission sub-unit, suitable for adjusting what the UE was accessed when determining
When core net, network switching request is sent to core net adjusted, includes: the mark of the UE in the network switching request
Information；Second transmission sub-unit, suitable for when the network switching request confirmation message for receiving the core net transmission adjusted
When, it includes: the core net adjusted in the RRC connection reconstruction message that Xiang Suoshu UE, which sends RRC connection reconstruction message,
Identification information；First rebuilds subelement, suitable for when receiving the RRC connection reestablishment completion message that the UE is sent, rebuild with
RRC connection between the UE.
Optionally, in the network switching request that first transmission sub-unit is sent further include: taken before adjustment for the UE
The identification information of the core net of business.
Optionally, the network switching request confirmation message is the core net adjusted by being described before adjustment
What the context that the core net of UE service obtains the UE was sent.
Optionally, in the RRC connection reconstruction message further include: the instruction information of PDCP type.
Optionally, the PDCP type includes: LTE PDCP and NR PDCP.
Optionally, the reconstruction unit, comprising: third transmission sub-unit determines that not adjusting the UE is accessed suitable for working as
Core net when, Xiang Suoshu UE send RRC connection reconstruction message；First rebuilds subelement, receives the UE transmission suitable for working as
RRC connection reestablishment completion message when, rebuild and the UE between RRC connection.
The embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer instruction, described
The step of computer instruction executes any of the above-described kind of the method when running.
The embodiment of the invention also provides a kind of base station, including memory and processor, energy is stored on the memory
Enough computer instructions run on the processor, the processor execute any of the above-described kind when running the computer instruction
The step of the method.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantage that
Using the above scheme, when receiving the request of RRC connection reconstruction, by the shape for obtaining current connected core net
State information, and the status information based on acquired core net determines whether to adjust the core net that UE is accessed, and then can be with base
The RRC connection between the UE is rebuild in adjustment result, so that UE can be able to be UE with the better core net of access state
Better network service is provided.
Further, due to further include in RRC connection reconstruction message PDCP type instruction information, connect relative in RRC
It connects and PDCP type is configured for UE by special signaling after reconfiguring, can effectively save signaling overheads.
Detailed description of the invention
Fig. 1 is a kind of RRC connection reconstruction method flow diagram in the embodiment of the present invention；
Fig. 2 is another kind RRC connection reconstruction method flow diagram in the embodiment of the present invention；
Fig. 3 is another RRC connection reconstruction method flow diagram in the embodiment of the present invention；
Fig. 4 is a kind of indicating means flow chart of PDCP type in the embodiment of the present invention；
Fig. 5 is a kind of RRC connection restoration methods flow chart in the embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of base station in the embodiment of the present invention；
Fig. 7 is a kind of structural schematic diagram of user terminal during the present invention is implemented；
Fig. 8 is the structural schematic diagram of another base station in the embodiment of the present invention.
Specific embodiment
By taking UE initially sets up the core net accessed when RRC connection and Data Radio Bearer as LTE core network as an example, UE is connect
Enter base station jurisdiction district and establish RRC connection, base station is that UE selects LTE core network.Base station sends Non-Access Stratum to 4G core net
(Non-Access Stratum, NAS) signaling.LTE core network authenticates UE, while distributing for establishing the wireless of evolution
The configuration parameter of access bearer (E-UTRAN Radio Access Bearer, E-RAB), and asked by initial context foundation
It asks and is sent to base station.
After base station receives LTE core network transmission initial context foundation request, Data Radio Bearer (Data is distributed for UE
Radio Bearer, DRB) etc. configuration parameters, and by RRC connection reconfiguration set message by the relevant configured parameter distributed send
To UE.After UE is received, using the configuration parameter distributed, and is set to base station return RRC connection reconfiguration and complete message.It receives base station
To RRC connection reconfiguration set complete message after to core net send initial context establish complete message, so far, UE can start into
The transmission of row data.
UE is in data transmission procedure, in fact it could happen that Radio Link Failure, UE can trigger RRC connection reconstruction.According to existing
Reconstruction process, UE be also to continue with continue to use before access core net, if the core net accessed before occurs at this time overload feelings
Condition, better service can not be provided for UE by eventually leading to network.
In view of the above-mentioned problems, receiving RRC connection weight the embodiment of the invention provides a kind of RRC connection reconstruction method
When building request, by obtaining the status information of current connected core net, and the status information based on acquired core net
Determine whether to adjust the core net that UE is accessed, and then the RRC connection between the UE can be rebuild based on adjustment result, makes
Better network service can be provided with the better core net of access state for UE by obtaining UE.
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment explain in detail.
Referring to Fig.1, the embodiment of the invention provides a kind of RRC connection reconstruction methods, and the method may include following steps
It is rapid:
Step 11, when receiving the RRC connection reconstruction request of UE transmission, the state of current connected core net is obtained
Information.
In specific implementation, UE is in data transmission procedure, probably due to wireless signal is deteriorated etc. suddenly, reasons lead to nothing
Wired link failure, triggers RRC connection reconstruction.When triggering RRC connection reconstruction, UE may select to reside in former base station administrative small
Area, it is also possible to reside in adjacent base station jurisdiction district.That is, the base station of the RRC connection reconstruction request of UE transmission is received,
It may be the corresponding base station of UE original access cell, it is also possible to the adjacent base station of the corresponding base station of original access cell.It is specific no matter
Which base station receives the RRC connection reconstruction request of UE transmission, can execute the connection of RRC described in embodiment of the present invention weight
Construction method rebuilds the RRC connection between the UE.
In specific implementation, UE can send the request of RRC connection reconstruction to base station during initiating random access.Base
It stands after receiving the request of RRC connection reconstruction, can first obtain the status information of current connected core net.Wherein, this hair
In bright embodiment, it is assumed that the base station connects the multiple cores net including the core net that UE original accesses simultaneously.
For example, base station connects LTE core network and 5G core simultaneously so that the core net of UE original access is LTE core network as an example
Net.When base station connects LTE core network and 5G core net simultaneously, the state of the available LTE core network in base station and 5G core net
Information.It should be noted that base station can obtain the status information of connected core net in advance, because base station also needs for it
His UE provides service, therefore base station needs to learn the status information of core net in real time, to select suitable core net for UE.
In specific implementation, the status information of the current connected core net may include: current connected core
The load state information of heart net.It is, of course, also possible to include other information that can characterize core net current state, such as interim access
Restricted information, specifically with no restriction.
Step 12, the status information based on acquired core net judges whether to adjust the core net that the UE is accessed.
In specific implementation, base station can be judged after the status information of the core net of acquisition based on acquired information
The current state of the core net connected.
Using the core net of UE original access as LTE core network, and information acquired in base station is LTE core network and 5G core net
Load state information for, if the load condition of 5G core net is better than the load condition of LTE core network, base station is adjustable
The core net that UE is accessed is 5G core net, otherwise without adjusting the core net that UE is accessed, i.e., the core for accessing UE
Heart net is LTE core network.
Step 13, the RRC connection between the UE is rebuild based on judging result.
In specific implementation, when the core net that judgement adjustment UE is accessed, the RRC connection between the UE is rebuild
Afterwards, enable and carry out service communication between the UE and core net adjusted.When judgement does not adjust the core that UE is accessed
When net, after rebuilding the RRC connection between the UE, so that the UE still carries out service communication with the core net accessed before.
Fig. 2 is another kind RRC connection reconstruction method provided in an embodiment of the present invention.Reference Fig. 2, the method may include
Following steps:
Step 21, when receiving the RRC connection reconstruction request of UE transmission, the state of current connected core net is obtained
Information.
Step 22, the status information based on acquired core net judges whether to adjust the core net that the UE is accessed.
When judgement adjusts the core net that the UE is accessed, step 23 is executed, it is no to then follow the steps 26.
Step 23, network switching request is sent to core net adjusted, includes: the UE in the network switching request
Identification information.
Using the core net of UE original access as LTE core network, and core net adjusted is 5G core net for 5G core net
After the network switching request for receiving base station transmission, the identification information of the UE can be obtained based on network switching request, into
And the context of the UE can be obtained from the related network elements of LTE core network, then the context based on the UE determines whether
Allow UE access and configures necessary parameter when allowing UE access.
In one embodiment of this invention, core net adjusted can obtain the UE original from network switching request and connect
Enter the identification information of the network element of core net.By taking the core net of UE original access is LTE core network as an example, the base that is accessed when UE is rebuild
The network element ID i.e. mobile management entity of original core net serviced for UE can be known from the UE context that base station side saves by standing
(Mobility Management Element, MME) mark.
In one embodiment of this invention, core net adjusted can be somebody's turn to do from the network element of the core net of original access
The context of UE, wherein including the authentication information etc. of UE, the context saved with base station side is had differences.Core net adjusted
The context for obtaining UE can more quickly determine whether allow UE access later, improve RRC connection reconstruction efficiency.
Step 24, when receiving the network switching request confirmation message that the core net adjusted is sent, Xiang Suoshu
UE sends RRC connection reconstruction message, includes: the type information of the core net adjusted in the RRC connection reconstruction message.
In specific implementation, the core net adjusted is by obtaining institute before adjustment for the core net that the UE is serviced
After the context for stating UE, when allowing the UE access, the base station Xiang Suoshu sends the network switching request confirmation message.
It in specific implementation, may include: the type letter of the core net adjusted in the RRC connection reconstruction message
Breath, for example, the type information of the core net can be the instruction of 5G core net or LTE core network for core net adjusted
Information.UE can know the type of core net adjusted after receiving the RRC connection reconstruction message, so to itself
High level indicate the type of core net adjusted.The high level of the UE can be generated according to core net type set adjusted
NAS signaling does not regenerate 4G NAS signaling for example, 5G NAS signaling can be generated in the high level of the UE at this time.
In one embodiment of this invention, in the RRC connection reconstruction message further include: modification Packet Data Convergence Protocol
The instruction information of (Packet Data Convergence Protocol, PDCP) type.
In specific implementation, after RRC connection reconstruction, base station, which usually passes through RRC connection reconfiguration confidence, to be enabled to UE instruction modification
PDCP type.In an embodiment of the present invention, by indicating modification PDCP type in RRC connection reconstruction message, without logical
It crosses the RRC connection reconfiguration confidence rebuild after completing and enables instruction modification PDCP type, signaling overheads can be effectively reduced.
In the implementation of specific reconstruction process, no matter whether the base station can adjust the core net that UE is accessed, Yi Jisuo
State whether base station has adjusted the core net that UE is accessed, base station can indicate modification PDCP type in RRC connection reconstruction message.
The PDCP type can be applied to Signaling Radio Bearer and Data Radio Bearer.
In specific implementation, the PDCP type can be LTE PDCP, the i.e. PDCP of LTE system, or NR
PDCP, the i.e. PDCP of 5G system.
In specific implementation, when instruction modification PDCP type in RRC connection reconstruction message, UE can first delete former PDCP
Configuration parameter reapplies modified PDCP configuration parameter.
Step 25, when receiving the RRC connection reestablishment completion message that the UE is sent, restore between the UE
RRC connection.
In specific implementation, UE carries out RRC connection reconstruction after receiving RRC connection reconstruction message, and in RRC connection
After the completion of reconstruction, RRC connection reestablishment completion message is sent to base station.So far, the RRC connection between base station and the UE is built again
Vertical, the UE can carry out service communication with core net adjusted.
Step 26, Xiang Suoshu UE sends RRC connection reconstruction message.
When determination does not adjust the core net that the UE is accessed, Xiang Suoshu UE sends RRC connection reconstruction message, so that institute
The core net of former access can be accessed by stating UE.
Step 27, when receiving the RRC connection reestablishment completion message that the UE is sent, restore between the UE
RRC connection.
The UE is receiving RRC connection reconstruction message, carries out RRC connection reconstruction, and after the completion of RRC connection reconstruction,
RRC connection reestablishment completion message is sent to base station, so far, the RRC connection between base station and the UE re-establishes, and the UE can
Service communication is carried out with the core net with original access.
As shown in the above, the RRC connection reconstruction method of the embodiment of the present invention, by obtaining current connected core
The status information of net, and the status information based on acquired core net determines whether to adjust the core net that UE is accessed, in turn
The RRC connection between the UE can be rebuild based on adjustment result, so that UE can be with the better core net of access state, in turn
Better network service can be provided for UE.
Referring to Fig. 3, the embodiment of the invention also provides a kind of RRC connection reconstruction methods, and the method may include as follows
Step:
Step 31, the request of RRC connection reconstruction is sent to base station.
In specific implementation, UE may be because that the wireless signal reasons such as be deteriorated suddenly lead to Radio Link Failure, trigger RRC
Connection reconstruction, and then the request of RRC connection reconstruction can be sent to base station during initiating random access.
Step 32, when receiving the RRC connection reconstruction message that the base station is sent, the base station Xiang Suoshu sends RRC connection
It rebuilds and completes message, rebuild the RRC connection between the base station；Wherein: including: modification in the RRC connection reconstruction message
The instruction information of PDCP type.
In specific implementation, base station can send RRC connection reconstruction to UE and disappear after receiving the request of RRC connection reconstruction
Breath.It may include the type information for allowing the core net of the UE access in the RRC connection reconstruction message.
In specific implementation, base station can first obtain connected core net after receiving the request of RRC connection reconstruction
The status informations such as load, and then the core net that adjustment UE is accessed is judged whether according to acquired information, and then based on judgement
As a result RRC connection reconstruction message is sent to UE.Certainly, base station can not also judge whether to adjust the core net that UE is accessed, directly
It connects to UE and sends RRC connection reconstruction message.
In specific implementation, the instruction information of the modification PDCP type can be with LTE PDCP type or NR PDCP type.
When RRC connection reconstruction message carries the instruction information of the modification PDCP type, the UE first deletes original PDCP configuration parameter,
Reapply PDCP configuration parameter after modifying.When RRC connection reconstruction message indicates modification PDCP type, need to configure necessary
The modification that PDCP parameter (such as sequence length, sequence duration) completes PDCP type so as to UE.
By indicating PDCP type in RRC connection reconstruction message, without enabling instruction by RRC connection reconfiguration confidence
PDCP type can effectively reduce signaling overheads.
Referring to Fig. 4, the embodiment of the invention also provides a kind of indicating means of PDCP type, and the method may include such as
Lower step:
Step 41, when receiving the RRC connection reconstruction request of UE transmission, Xiang Suoshu UE sends RRC connection reconstruction message,
It include: the instruction information for modifying PDCP type in the RRC connection reconstruction message.
In one embodiment of this invention, the base station can first obtain the status information of current connected core net,
Judge whether to adjust the core net that the UE is accessed based on acquired information, and the RRC is generated based on judging result and is connected
Connect reconstruction message.
In one embodiment of this invention, in the RRC connection reconstruction message further include: the type of core net adjusted
Information.
Step 42, when receiving the RRC connection reestablishment completion message that the UE is sent, restore between the UE
RRC connection.
In specific implementation, UE carries out RRC connection reconstruction after receiving RRC connection reconstruction message, and in RRC connection
After the completion of reconstruction, RRC connection reestablishment completion message is sent to base station.So far, the RRC connection between base station and the UE is built again
It is vertical.When base station has adjusted the core net of the UE access, the UE can carry out service communication with core net adjusted.When
When base station does not adjust the core net of the UE access, the UE can carry out service communication with the core net of original access.
In the above-described embodiments, base station can modify the core net and modification PDCP that UE is accessed by RRC connection reconstruction
Type, or only modify PDCP type.In fact, the above method is equally applicable in RRC connection recovery process.
Referring to Fig. 5, the embodiment of the invention also provides a kind of RRC connection restoration methods, and the method may include as follows
Step:
Step 51, when receiving the RRC connection recovery request of UE transmission, the state of current connected core net is obtained
Information；
Step 52, the status information based on acquired core net judges whether to adjust the core net that the UE is accessed；
Step 53, restore the RRC connection between the UE based on judging result.
In specific implementation, the status information of the current connected core net includes: current connected core net
Load state information.
In specific implementation, when determining the core net that the adjustment UE is accessed, net is sent to core net adjusted
Network switching request includes: the identification information of the UE in the network switching request.When receiving the core net adjusted
When the network switching request confirmation message of transmission, Xiang Suoshu UE sends RRC connection and restores message, and the RRC connection restores message
In include: the core net adjusted type information.Restore to complete message when receiving the RRC connection that the UE is sent
When, restore the RRC connection between the UE.
In specific implementation, in the network switching request further include: be the network element of the core net of UE service before adjustment
Identification information.
In specific implementation, the core net adjusted is by being the network element of the UE core net serviced before adjustment
After the context for obtaining the UE, the network switching request confirmation message is sent.
In specific implementation, when determination does not adjust the core net that the UE is accessed, it is extensive that Xiang Suoshu UE sends RRC connection
Multiple message.When receiving the RRC connection recovery completion message that the UE is sent, restore the RRC connection between the UE.
In specific implementation, when UE sends RRC connection recovery request, the RRC connection restores to wrap in message
It includes: the instruction information of modification PDCP type.Base station can restore the core net and repair that message modification UE is accessed by RRC connection
Change PDCP type, or only modifies PDCP type.When UE, which receives RRC connection, restores message, institute after modification can be known simultaneously
The core net and PDCP type of access, or only know modified PDCP type, and then send RRC connection to base station and restore to complete
Message restores the RRC connection between base station.
By indicating PDCP type in RRC connection reconstruction message, without enabling instruction by RRC connection reconfiguration confidence
PDCP type can effectively reduce signaling overheads.
In order to more fully understand those skilled in the art and realize the present invention, below to the corresponding device of the above method and
Computer readable storage medium is described in detail.
Referring to Fig. 6, the embodiment of the invention also provides a kind of base station 60, the base station 60 may include: acquiring unit 61,
Judging unit 62 and reconstruction unit 63.Wherein:
The acquiring unit 61, suitable for obtaining current connected when receiving the RRC connection reconstruction request of UE transmission
The status information of core net；
The judging unit 62 judges whether that adjusting the UE is connect suitable for the status information based on acquired core net
The core net entered；
The reconstruction unit 63, suitable for rebuilding the RRC connection between the UE based on judging result.
In one embodiment of this invention, the status information for the current connected core net that the acquiring unit 61 obtains
It include: the load state information of current connected core net.
In one embodiment of this invention, the reconstruction unit 63 may include:
First transmission sub-unit 631, suitable for when determine adjust core net that the UE is accessed when, to core adjusted
Net sends network switching request, includes: the identification information of the UE in the network switching request；
Second transmission sub-unit 632, suitable for true when receiving the network switching request that the core net adjusted is sent
When recognizing message, it includes: the core adjusted in the RRC connection reconstruction message that Xiang Suoshu UE, which sends RRC connection reconstruction message,
The identification information of the network element of heart net；
First rebuilds subelement 633, suitable for restoring when receiving the RRC connection reestablishment completion message that the UE is sent
RRC between the UE is connect.
In one embodiment of this invention, in the network switching request that first transmission sub-unit 631 is sent further include:
It is the identification information of the network element of the core net of UE service before adjustment.
In one embodiment of this invention, the network switching request confirmation message is that the core net adjusted passes through
What the context that the network element before adjustment for the UE core net serviced obtains the UE was sent.
It in one embodiment of this invention, can also include: the finger for modifying PDCP type in the RRC connection reconstruction message
Show information.
In one embodiment of this invention, the PDCP type may include: LTE PDCP or NRPDCP.
In one embodiment of this invention, the reconstruction unit 63 may include: third transmission sub-unit (not shown) with
And first rebuild subelement (not shown).Wherein:
The third transmission sub-unit, suitable for when determination does not adjust the core net that the UE is accessed, Xiang Suoshu UE is sent out
Send RRC connection reconstruction message；
Described first rebuilds subelement, suitable for restoring when receiving the RRC connection reestablishment completion message that the UE is sent
RRC between the UE is connect.
Referring to Fig. 7, the embodiment of the invention also provides a kind of user terminal 70, the user terminal 70 may include: the
One transmission unit 71 and the second transmission unit 72.Wherein:
First transmission unit 71 is suitable for sending the request of RRC connection reconstruction to base station；
Second transmission unit 72, suitable for when receiving the RRC connection reconstruction message that the base station is sent, Xiang Suoshu
Base station sends RRC connection reestablishment completion message, rebuilds the RRC connection between the base station；Wherein: the RRC connection reconstruction
It include: the instruction information for modifying PDCP type in message.
Referring to Fig. 8, the embodiment of the invention also provides another base station 80, the base station 80 may include: that third is sent
Unit 81 and receiving unit 82.Wherein:
The third transmission unit 81, suitable for when receiving the RRC connection reconstruction request of UE transmission, Xiang Suoshu UE is sent
RRC connection reconstruction message includes: the instruction information for modifying PDCP type in the RRC connection reconstruction message；
The receiving unit 82, suitable for when receiving the RRC connection reestablishment completion message that the UE is sent, restoring and institute
State the RRC connection between UE.
In an embodiment of the present invention, the third transmission unit 81, suitable for obtaining the shape of current connected core net
State information judges whether to adjust the core net that the UE is accessed based on acquired information, and sends institute based on judging result
State RRC connection reconstruction message.
In one embodiment of this invention, in the RRC connection reconstruction message that the third transmission unit 81 is sent further include:
The type information of core net adjusted.
The embodiment of the invention also provides a kind of computer readable storage mediums, are stored thereon with computer instruction, described
The step of computer instruction executes any RRC connection reconstruction method in above-described embodiment when running.
The embodiment of the invention also provides another computer readable storage mediums, are stored thereon with computer instruction, institute
The step of executing the indicating means of any PDCP type in above-described embodiment when stating computer instruction operation.
In specific implementation, the computer readable storage medium may include: ROM, RAM, disk or CD etc..
The embodiment of the invention also provides a kind of base station, including memory and processor, energy is stored on the memory
Enough computer instructions run on the processor, the processor execute above-described embodiment when running the computer instruction
In any described RRC connection reconstruction method the method the step of.
The embodiment of the invention also provides a kind of user terminal, including memory and processor, stored on the memory
There is the computer instruction that can be run on the processor, the processor executes above-mentioned reality when running the computer instruction
The step of applying the indicating means of any PDCP type in example.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (10)
1. a kind of RRC connection reconstruction method characterized by comprising
The request of RRC connection reconstruction is sent to base station；
When receiving the RRC connection reconstruction message that the base station is sent, the base station Xiang Suoshu sends the completion of RRC connection reconstruction and disappears
Breath rebuilds the RRC connection between the base station；
Wherein: including: the instruction information for modifying PDCP type in the RRC connection reconstruction message.
2. RRC connection reconstruction method as described in claim 1, which is characterized in that the PDCP type include: LTE PDCP or
NR PDCP。
3. RRC connection reconstruction method as described in claim 1, which is characterized in that when RRC connection reconstruction message instruction is repaired
When changing PDCP type, the RRC connection reconstruction message further include: modified PDCP parameter information.
4. RRC connection reconstruction method as described in claim 1, which is characterized in that the base station is accessed in determining do not adjust
Core net after, send the RRC connection reconstruction message.
5. a kind of user terminal characterized by comprising
First transmission unit is suitable for sending the request of RRC connection reconstruction to base station；
Second transmission unit, suitable for when receiving the RRC connection reconstruction message that the base station is sent, the base station Xiang Suoshu is sent
RRC connection reestablishment completion message rebuilds the RRC connection between the base station；
Wherein: including: the instruction information for modifying PDCP type in the RRC connection reconstruction message.
6. user terminal as claimed in claim 5, which is characterized in that the PDCP type includes: LTE PDCP or NR
PDCP。
7. user terminal as claimed in claim 5, which is characterized in that when the RRC connection reconstruction message indicates modification PDCP
When type, the RRC connection reconstruction message further include: modified PDCP parameter information.
8. user terminal as claimed in claim 5, which is characterized in that the RRC connection reconstruction message is the base station true
It is fixed do not adjust it is transmitted after accessed core net.
9. a kind of computer readable storage medium, is stored thereon with computer instruction, which is characterized in that the computer instruction fortune
Perform claim requires the step of any one of 1 to 4 the method when row.
10. a kind of base station, including memory and processor, be stored on the memory to run on the processor
Computer instruction, which is characterized in that perform claim requires any one of 1 to 4 institute when the processor runs the computer instruction
The step of stating method.
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| CN111542094A (en) | 2020-08-14 |
| CN109548191B (en) | 2020-05-26 |
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