CN108271226B - A kind of SOT state of termination across RAT determines method and the network equipment - Google Patents
A kind of SOT state of termination across RAT determines method and the network equipment Download PDFInfo
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- CN108271226B CN108271226B CN201710005585.XA CN201710005585A CN108271226B CN 108271226 B CN108271226 B CN 108271226B CN 201710005585 A CN201710005585 A CN 201710005585A CN 108271226 B CN108271226 B CN 108271226B
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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
- H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
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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
- H04W36/14—Reselecting a network or an air interface
Abstract
The invention discloses a kind of SOT state of termination across RAT to determine method and the network equipment, to solve state branch problem when terminal moves between different system.Method are as follows: when the terminal of unactivated state or light connection status in first network system enters second network system different from first network system by the first network system, the network side of second network system receive as the terminal report for information needed for obtaining the source AS contextual information of the terminal, wherein, the unactivated state or the light connection status are that the RRC connection of the terminal is released for characterizing network node, but the terminal and the network node are stored with the state of AS contextual information of the terminal under the network node；Source AS contextual information of the network side based on terminal described in the acquisition of information simultaneously maps the source AS contextual information.
Description
Technical field
The present invention relates to fields of communication technology more particularly to a kind of SOT state of termination across RAT to determine method and the network equipment.
Background technique
1, the interface introduction in the framework of NextGen network
As shown in Figure 1, for the interface in the framework of NextGen network, wherein NG2 is RAN and the control plane of core net connects
Mouthful；NG3 is the interface in the user plane of RAN and core net；GNB is the base station in New RAT (NR) system.
2, across the RAT network framework introduction of NR and eLTE/LTE
Fig. 2 is the frame that the base station the NR gNB and base station eLTE eLTEeNB is all connected to 5G core net NGC (NextGen Core)
Structure, wherein Fig. 2A-Fig. 2 D is four kinds of specific architectural schemes that gNB and eLTEeNB is connected to NGC；Fig. 3 is gNB and LTE
ENB is connected to the framework of EPC simultaneously, wherein Fig. 3 A- Fig. 3 B is two kinds of specific frameworks that gNB and LTE eNB is connected to EPC
Scheme.
3, under handoff scenario NR and eLTE/LTE network architecture introduction
Fig. 4 is the network architecture switched based on CN interface；Fig. 5 is the network architecture switched based on NG interface；Fig. 6 be based on
The network architecture of Xn interface switching.
4, RRC_INACTIVE state (inactive state, inactive state) and light RRC connection (light connection
State) it introduces
A kind of new mobility status RRC_INACTIVE (inactive state, inactive state) is introduced in NR system.
When UE in this state when, although RAN node releases the RRC connection of the UE, but still retain UE NG2 and
The connection of NG3 interface.
The side UE and RAN node store UE AS context (terminal access layer contextual information), so as to quickly extensive
Arrive connected state again or be maintained at inactive state and send/receive data；
UE is transparent to core net in the state, i.e., core net still believes that UE is constantly in connected state, therefore downlink signaling
Or data will reach RAN node, RAN needs to page UE at this time, introduces the band of position a RAN level RNA (RAN
Notification Area).UE is under inactive state, and RAN node gNB in all cells under the region RNA by sending out
Notification message notification is sent to search UE.If the UE of inactive state out of the corresponding region RNA, needs to carry out
RNA updates, so that RAN network side node can find the UE.
In LTE system, UE is likely to be at the light RRC connection of RRC connection status.With inactive state
Similar, at this time although RAN node releases the RRC connection of the UE, but the side UE and RAN node store UE AS context.UE
Side storage UE AS context include before RRC configuration, safe context, PDCP state (including ROHC state), source take
The corresponding cell mark of the corresponding C-RNTI of the UE and source service main plot and physical-layer cell identifier under business main plot.Core
Heart net still believes that UE is constantly in connected state.When there is the arrival of DL data, LTE base station (is sought by initiating the side RAN paging
Exhale message) paging UE.When LTE base station configuration UE enters the light RRC connection of RRC connection status, it can match simultaneously
Set the region RAN paging.If subsequent UE removes the region corresponding RAN paging, need to carry out the corresponding side RAN
Paging domain updates.
Terminal moves under the scene of LTE/eLTE and NR mixed networking, mainly there is following four kinds of situations:
1) it is moved under NR gNB covering from LTE eNB
2) it is moved under NR gNB covering from eLTEeNB
3) it is moved under LTE eNB covering from NR gNB
4) it is moved under eLTEeNB covering from NR gNB
For the first above-mentioned situation, when terminal is under light connection state, when target NR gNB is supported
When inactive state, state shift the problem of there is presently no associated solutions.
For above-mentioned second situation, when terminal is under light connection state, when target NR gNB is supported
When inactive state, state shift the problem of there is presently no associated solutions.
For the third above-mentioned situation, when terminal is under inactive state, when target NR gNB supports light
When connection, state shift the problem of there is presently no associated solutions.
For above-mentioned 4th kind of situation, when terminal is under inactive state, when target NR gNB supports light
When connection, state shift the problem of there is presently no associated solutions.
Therefore, state transfer when how terminal moves between different system is next generation network urgent problem to be solved.
Summary of the invention
The embodiment of the present invention provides a kind of SOT state of termination across RAT and determines method and the network equipment, exists to solve terminal
State branch problem when moving between different system, makes terminal remain to work normally when moving between different system, and avoid
Time delay and signaling overheads caused by newly-built radio resource and safety are reconfigured.
Specific technical solution provided in an embodiment of the present invention is as follows:
In a first aspect, the embodiment of the invention provides a kind of SOT state of termination across RAT to determine method, comprising:
The terminal of unactivated state or light connection status in first network system is by the first network system
When into second network system different from first network system, the network side of second network system is received by the terminal
Report for information needed for obtaining the source AS contextual information of the terminal；
Source AS contextual information of the network side based on terminal described in the acquisition of information and to the source AS context
Information is mapped.
In possible embodiment, the network side of second network system is received to be used to obtain by what the terminal reported
Information needed for the source AS contextual information of the terminal, comprising:
After the terminal carries out network system selection, the network side is received to be used to obtain institute by what the terminal reported
Parameter information needed for stating the source AS contextual information of terminal.
It is described for parameter information needed for obtaining the source AS context of the terminal in possible embodiment, at least
One or more combinations including following information:
Terminal iidentification of the terminal under the source network node in the first network system；
PLMN mark of the terminal under the source network node；
Short MAC-I of the terminal under the source network node；
Terminal core network location area under the source network node identifies.
In possible embodiment, source AS contextual information of the network side based on terminal described in the acquisition of information is simultaneously
The source AS contextual information is mapped, comprising:
The network side is according to the information, from the source network node and/or the core net of the first network system
The middle source AS contextual information for obtaining the terminal in the first network system；
The network side maps the source AS contextual information.
In possible embodiment, the network side maps the source AS contextual information, includes at least as follows
One or more combinations of mapping:
It is configured using default RRC corresponding with the target network node in second network system, it is described
Default RRC configuration is configured including the Signaling Radio Bearer of default, the Data Radio Bearer of default configures,
The configuration of PDCP layer, the MAC layer configuration of default and the physical layer configurations of default of default；
The radio bearer configuration required using the radio bearer Qos for meeting the source network node configuration；
Continue to use safe context corresponding with the source network node；
Configure new security algorithm.
In possible embodiment, in source AS contextual information of the network side based on terminal described in the acquisition of information
And after mapping the source AS contextual information, the method also includes:
The network side notifies AS contextual information and the source AS context after the terminal mapping by RRC information
The difference value of information.
In possible embodiment, the difference value includes at least one of following information:
Use the instruction of the default RRC configuration under the target network node；
The index value of default RRC configuration under the target network node；
Under the radio bearer configuration and the destination node that meet the radio bearer qos requirement of the source network node configuration
Default RRC configuration difference value；
The radio bearer for meeting the radio bearer qos requirement of the source network node configuration under the target network node is matched
Set the difference value with the radio bearer configuration under the source network node；
Continue to use the instruction of the safe context of the source network node；
The difference value of the new security algorithm and source security algorithm.
AS context in possible embodiment, after the network side notifies the terminal to map by RRC information
After information and the difference value of the source AS contextual information, the method also includes:
After being converted by the first network system into the corresponding core net path of second network system, institute
Stating network side notifies the source network node to discharge the source AS contextual information.
Second aspect, the embodiment of the invention provides a kind of network equipments, comprising:
First receiving module, for unactivated state or light connection status in the first network system terminal by
When the first network system enters second network system different from first network system, the use reported by the terminal is received
The information needed for the source AS contextual information for obtaining the terminal；
First mapping block, for the source AS contextual information based on terminal described in the acquisition of information and to the source AS
Contextual information is mapped.
In possible embodiment, first receiving module is specifically used for:
After the terminal carries out network system selection, the source for being used to obtain the terminal reported by the terminal is received
Parameter information needed for AS contextual information.
It is described for parameter information needed for obtaining the source AS context of the terminal in possible embodiment, at least
One or more combinations including following information:
Terminal iidentification of the terminal under the source network node in the first network system；
PLMN mark of the terminal under the source network node；
Short MAC-I of the terminal under the source network node；
Terminal core network location area under the source network node identifies.
In possible embodiment, first mapping block is specifically used for:
According to the information, described in being obtained in the core net of the source network node and/or the first network system
Source AS contextual information of the terminal in the first network system；
The source AS contextual information is mapped.
In possible embodiment, the network side maps the source AS contextual information, includes at least as follows
One or more combinations of mapping:
It is configured using default RRC corresponding with the target network node in second network system, it is described
Default RRC configuration is configured including the Signaling Radio Bearer of default, the Data Radio Bearer of default configures,
The configuration of PDCP layer, the MAC layer configuration of default and the physical layer configurations of default of default；
The radio bearer configuration required using the radio bearer Qos for meeting the source network node configuration；
Continue to use safe context corresponding with the source network node；
Configure new security algorithm.
In possible embodiment, the network equipment further include:
First notification module, for notifying AS contextual information and the source after the terminal mapping by RRC information
The difference value of AS contextual information.
In possible embodiment, the difference value includes at least one of following information:
Use the instruction of the default RRC configuration under the target network node；
The index value of default RRC configuration under the target network node；
Under the radio bearer configuration and the destination node that meet the radio bearer qos requirement of the source network node configuration
Default RRC configuration difference value；
The radio bearer for meeting the radio bearer qos requirement of the source network node configuration under the target network node is matched
Set the difference value with the radio bearer configuration under the source network node；
Continue to use the instruction of the safe context of the source network node；
The difference value of the new security algorithm and source security algorithm.
In possible embodiment, the network equipment further include:
Second notification module enters the corresponding core net of second network system by the first network system for working as
After the completion of path integration, the source network node is notified to discharge the source AS contextual information.
The third aspect, the embodiment of the invention provides a kind of network equipment, including processor, memory and transceiver,
In, transceiver sends and receivees data under the control of a processor, and preset program is preserved in memory, and processor reading is deposited
Program in reservoir executes following procedure according to the program:
The terminal of unactivated state or light connection status in first network system is by the first network system
When into second network system different from first network system, processor receive reported by the terminal it is described for obtaining
Information needed for the source AS contextual information of terminal；
Source AS contextual information of the processor based on terminal described in the acquisition of information and to the source AS contextual information
It is mapped.
In possible embodiment, after the terminal carries out network system selection, processor is received by the terminal
Report for parameter information needed for obtaining the source AS contextual information of the terminal.
It is described for parameter information needed for obtaining the source AS context of the terminal in possible embodiment, at least
One or more combinations including following information:
Terminal iidentification of the terminal under the source network node in the first network system；
PLMN mark of the terminal under the source network node；
Short MAC-I of the terminal under the source network node；
Terminal core network location area under the source network node identifies.
In possible embodiment, processor is according to the information, from the source network node and/or the first network
Source AS contextual information of the terminal in the first network system is obtained in the core net of system；Processor is to the source
AS contextual information is mapped.
In possible embodiment, the network side maps the source AS contextual information, includes at least as follows
One or more combinations of mapping:
It is configured using default RRC corresponding with the target network node in second network system, it is described
Default RRC configuration is configured including the Signaling Radio Bearer of default, the Data Radio Bearer of default configures,
The configuration of PDCP layer, the MAC layer configuration of default and the physical layer configurations of default of default；
The radio bearer configuration required using the radio bearer Qos for meeting the source network node configuration；
Continue to use safe context corresponding with the source network node；
Configure new security algorithm.
In possible embodiment, processor notify the terminal to map by RRC information after AS contextual information with
The difference value of the source AS contextual information.
In possible embodiment, the difference value includes at least one of following information:
Use the instruction of the default RRC configuration under the target network node；
The index value of default RRC configuration under the target network node；
Under the radio bearer configuration and the destination node that meet the radio bearer qos requirement of the source network node configuration
Default RRC configuration difference value；
The radio bearer for meeting the radio bearer qos requirement of the source network node configuration under the target network node is matched
Set the difference value with the radio bearer configuration under the source network node；
Continue to use the instruction of the safe context of the source network node；
The difference value of the new security algorithm and source security algorithm.
In possible embodiment, when by the first network system enter the corresponding core net of second network system
After the completion of path integration, processor notifies the source network node to discharge the source AS contextual information.
Based on the above-mentioned technical proposal, the unactivated state or light in the embodiment of the present invention, in first network system
When the terminal of connection status enters second network system different from first network system by the first network system, described the
The network side of two network systems is received to be used to obtain needed for the source AS contextual information of the terminal as what the terminal reported
Information, wherein the unactivated state or the light connection status are to release the terminal for characterizing network node
RRC connection, but the terminal and the network node are stored with AS contextual information of the terminal under the network node
State；Source AS contextual information of the network side based on terminal described in the acquisition of information simultaneously believes the source AS context
Breath is mapped, and when so that terminal moving between different system, network side can be realized based on the source AS contextual information of terminal
State transfer, and the terminal contexts of source network node are reused, avoid time delay caused by newly-built radio resource and safety reconfiguration
And signaling overheads.
Detailed description of the invention
Fig. 1 is the interface schema in the framework of NextGen network in the prior art；
Fig. 2 is the architecture diagram that the base station the NR base station gNB and eLTE eLTEeNB is all connected to 5G core net NGC in the prior art；
Fig. 2A is the first specific architectural schemes figure that gNB and eLTEeNB is connected to NGC in the prior art；
Fig. 2 B is second of specific architectural schemes figure that gNB and eLTEeNB is connected to NGC in the prior art；
Fig. 2 C is the third specific architectural schemes figure that gNB and eLTEeNB is connected to NGC in the prior art；
Fig. 2 D is the 4th kind of specific architectural schemes figure that gNB and eLTEeNB is connected to NGC in the prior art；
Fig. 3 is the architecture diagram that NB and LTE eNB is connected to EPC simultaneously in the prior art；
Fig. 3 A is the first specific architectural schemes figure that gNB and LTE eNB is connected to EPC in the prior art；
Fig. 3 B is second of specific architectural schemes figure that gNB and LTE eNB is connected to EPC in the prior art；
Fig. 4 is the network architecture diagram in the prior art based on the switching of CN interface；
Fig. 5 is the network architecture diagram in the prior art based on the switching of NG interface；
Fig. 6 is the network architecture diagram in the prior art based on the switching of Xn interface；
Fig. 7 is the flow chart that a kind of SOT state of termination across RAT provided in the embodiment of the present invention determines method；
Fig. 8 is the structural schematic diagram of the network equipment in the embodiment of the present invention；
Fig. 9 is the structural schematic diagram of another network equipment in the embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, 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.
In the embodiment of the present invention, as shown in fig. 7, the SOT state of termination determination process across RAT is as follows:
Step 101: the terminal of unactivated state or light connection status in first network system is by described first
When network system enters second network system different from first network system, the network side of second network system receive by
The terminal report for information needed for obtaining the source AS contextual information of the terminal.
In the specific implementation process, the first network system and second network system specifically can be NR network or
One of person's LTE network or eLTE network, certainly, first network system and the second network system difference, that is, described first
Network system is NR network, and second network system is LTE network；Alternatively, the first network system is eLTE network, the
Two network systems are NR network.
After terminal is in unactivated state or light connection status in first network system, terminal and corresponding network section
The AS contextual information under current network will be stored in point, the AS contextual information can specifically include: be in
Before the unactivated state, RRC configuration information corresponding with the source network node of the first network system is being in described
Before unactivated state, Security Context Information corresponding with the source network node, the source comprising source ROHC status information
PDCP status information and for information such as parameters needed for calculating short MAC-I (shortMAC-I), this is not restricted.
When terminal is moved in the second network system by first network, the network side of the second network system was just received by end
Hold report for information needed for obtaining the source AS contextual information of the terminal.
In embodiments of the present invention, the specific implementation of step S101 is as follows:
After the terminal carries out network system selection, the network side is received to be used to obtain institute by what the terminal reported
Parameter information needed for stating the source AS contextual information of terminal.
In the specific implementation process, after terminal selection or reselecting network, terminal will be to the net of the second network system
Network side reports the information, at this point, network side just obtains the information.
In embodiments of the present invention, described for parameter information needed for obtaining the source AS context of the terminal, at least
One or more combinations including following information:
Terminal iidentification of the terminal under the source network node in the first network system；
PLMN mark of the terminal under the source network node；
Short MAC-I of the terminal under the source network node；
Terminal core network location area under the source network node identifies.
After executing completion step S101, the method in the embodiment of the present invention just executes step S102: the network side
Source AS contextual information based on terminal described in the acquisition of information simultaneously maps the source AS contextual information.
In embodiments of the present invention, the specific implementation of step S102 is as follows:
The network side is according to the information, from the source network node and/or the core net of the first network system
The middle source AS contextual information for obtaining the terminal in the first network system；
The network side maps the source AS contextual information.
In embodiments of the present invention, the network side maps the source AS contextual information, includes at least as follows
One or more combinations of mapping:
It is configured using default RRC corresponding with the target network node in second network system, it is described
Default RRC configuration is configured including the Signaling Radio Bearer of default, the Data Radio Bearer of default configures,
The configuration of PDCP layer, the MAC layer configuration of default and the physical layer configurations of default of default；
The radio bearer configuration required using the radio bearer Qos for meeting the source network node configuration；
Continue to use safe context corresponding with the source network node；
Configure new security algorithm.
In the specific implementation process, after network side obtains the information, network side is just from source core net and/or source base
It stands and obtains terminal contexts, and mapped according to acquired terminal AS context.Its mapping process includes two aspects: the
It on the one hand is the mapping to carrying configuration, specifically: it is configured using the default RRC under target RAT, including default's
SRB (Signaling Radio Bearer) configuration, DRB (Data Radio Bearer) configuration of default and PDCP layer, the MAC of default
Layer and physical layer configurations；Alternatively, meeting the radio bearer configuration of the radio bearer qos requirement of source RAT configuration.Second aspect is pair
The mapping of algorithm, specifically: continue to use the safe context of source RAT；Alternatively, the security algorithm that configuration is new.Those skilled in the art
Two aspects therein can be selected according to actual use situation or wherein either side is mapped, and do not limited herein
System.
Method after executing completion step S102, in the embodiment of the present invention further include:
The network side notifies AS contextual information and the source AS context after the terminal mapping by RRC information
The difference value of information.
In the specific implementation process, when AS context mapping success of the network side to terminal, network side can be disappeared by RRC
Breath issues the difference value of the AS context after mapping, so that terminal after receiving the difference value, adjusts the upper and lower of its own
Literary information.Specifically, the difference value includes at least one of following information:
Use the instruction of the default RRC configuration under the target network node；
The index value of default RRC configuration under the target network node；
Under the radio bearer configuration and the destination node that meet the radio bearer qos requirement of the source network node configuration
Default RRC configuration difference value；
The radio bearer for meeting the radio bearer qos requirement of the source network node configuration under the target network node is matched
Set the difference value with the radio bearer configuration under the source network node；
Continue to use the instruction of the safe context of the source network node；
The difference value of the new security algorithm and source security algorithm.
Method after executing completion above-mentioned steps, in the embodiment of the present invention further include:
After being converted by the first network system into the corresponding core net path of second network system, institute
Stating network side notifies the source network node to discharge the source AS contextual information.
In the specific implementation process, in order to mitigate the load of network node, when network side determines that core net path converts
Cheng Hou will send notification information to the source RAT of terminal, to notify source RAT to discharge the context of the terminal.
In the following, technical solution of the present invention will be described in detail in conjunction with specific embodiments:
Embodiment one: terminal is mobile in the minizone eNB and NR gNB LTE, LTE eNB and NR gNB be respectively coupled to EPC and
NGC。
Step 1: terminal is moved to target RAT cell from source RAT cell, initiates to transmit in RRC information for obtaining terminal
The information of context, including terminal iidentification and/or source PLMN are identified and/or the ShortMAC-I and/or core of the source base station RAT
Heart network location region mark.At this point, the base station target RAT just can obtain the information from RRC information.
Step 2: the base station target RAT sends the solicited message for obtaining terminal contexts, target RAT to target RAT core net
Core net passes through the interface between target RAT core net and source RAT core net after source RAT core net acquisition terminal contexts,
Newly-built terminal NAS context, and AS context is sent to the base station target RAT；
Step 3: the base station target RAT is mapped according to acquired terminal AS context, comprising:
1) using the default RRC configuration under target RAT, SRB (Signaling Radio Bearer) configuration including default,
The DRB (Data Radio Bearer) of default is configured and PDCP layer, MAC layer and the physical layer configurations of default；Alternatively, full
The radio bearer configuration of the radio bearer qos requirement of sufficient source RAT configuration.And/or
2) safe context of source RAT is continued to use；Alternatively, the security algorithm that configuration is new.
When mapping successfully, base station issues the difference value of the AS context after mapping by RRC information, when core net path
After converting, notice source RAT discharges the context of the terminal；The difference value of the AS context includes:
1) it is configured using the default RRC under the instruction of the default RRC configuration under target RAT or target RAT
Index value, or meet source RAT configuration radio bearer qos requirement radio bearer configuration and target RAT under
The radio bearer of the difference value of default RRC configuration or the radio bearer qos requirement for meeting source RAT configuration under target RAT
The difference value that configuration is configured with radio bearer under the RAT of source；
2) instruction of the safe context of source RAT or the difference value of new security algorithm and source security algorithm are continued to use.
Embodiment two: terminal is mobile in the minizone eLTEeNB and NR gNB, eLTEeNB and NR gNB is connected to same simultaneously
A NGC.
Step 1: terminal is moved to target RAT cell from source RAT cell, initiates access network location region and updates, connects in transmission
In the RRC information of networking location area updating, the information for obtaining terminal contexts, including terminal iidentification and/or source are transmitted
The ShortMAC-I of PLMN mark and/or the source base station RAT.
Step: 2: the base station target RAT sends the solicited message for obtaining terminal contexts to NGC, and target RAT core net should
Terminal AS context is sent to the base station target RAT；
Step 3: the base station target RAT is mapped according to acquired terminal AS context, comprising:
1) using the default RRC configuration under target RAT, SRB (Signaling Radio Bearer) configuration including default,
The DRB (Data Radio Bearer) of default is configured and PDCP layer, MAC layer and the physical layer configurations of default；Alternatively, full
The radio bearer configuration of the radio bearer qos requirement of sufficient source RAT configuration.And/or
2) safe context of source RAT is continued to use；Alternatively, the security algorithm that configuration is new.
When mapping successfully, base station issues the difference value of the AS context after mapping by RRC information, when core net path
After converting, notice source RAT discharges the context of the terminal；The difference value of the AS context includes:
1) it is configured using the default RRC under the instruction of the default RRC configuration under target RAT or target RAT
Index value, or meet source RAT configuration radio bearer qos requirement radio bearer configuration and target RAT under
The radio bearer of the difference value of default RRC configuration or the radio bearer qos requirement for meeting source RAT configuration under target RAT
The difference value that configuration is configured with radio bearer under the RAT of source；
2) instruction of the safe context of source RAT or the difference value of new security algorithm and source security algorithm are continued to use.
Embodiment three: terminal is mobile in the minizone eLTEeNB and NR gNB, eLTEeNB and NR gNB is connected to same simultaneously
A NGC, and have interface between eLTEeNB and NR gNB.
Step 1: terminal is moved to target RAT cell from source RAT cell, initiates access network location region and updates, connects in transmission
In the RRC information of networking location area updating, the information for obtaining terminal contexts, including terminal iidentification and/or source are transmitted
The ShortMAC-I of PLMN mark and/or the source base station RAT.
Step: 2: the base station target RAT to NGC and other there is the base station of Xn interface to send with it to obtain terminal contexts and ask
Information is sought, terminal AS context is sent to the base station target RAT by the source base station RAT；
Step 3: the base station target RAT is mapped according to acquired terminal AS context, comprising:
1) using the default RRC configuration under target RAT, SRB (Signaling Radio Bearer) configuration including default,
The DRB (Data Radio Bearer) of default is configured and PDCP layer, MAC layer and the physical layer configurations of default；Alternatively, full
The radio bearer configuration of the radio bearer qos requirement of sufficient source RAT configuration.And/or
2) safe context of source RAT is continued to use；Alternatively, the security algorithm that configuration is new.
When mapping successfully, base station issues the difference value of the AS context after mapping by RRC information, when core net path
After converting, notice source RAT discharges the context of the terminal；The difference value of the AS context includes:
1) it is configured using the default RRC under the instruction of the default RRC configuration under target RAT or target RAT
Index value, or meet source RAT configuration radio bearer qos requirement radio bearer configuration and target RAT under
The radio bearer of the difference value of default RRC configuration or the radio bearer qos requirement for meeting source RAT configuration under target RAT
The difference value that configuration is configured with radio bearer under the RAT of source；
2) instruction of the safe context of source RAT or the difference value of new security algorithm and source security algorithm are continued to use.
Example IV: terminal is mobile in the minizone eLTEeNB and NR gNB, and LTE eNB and NR gNB are respectively coupled to difference
NGC.
Step 1: terminal is moved to target RAT cell from source RAT cell, initiates access network location region and updates, connects in transmission
In the RRC information of networking location area updating, the information for obtaining terminal contexts, including terminal iidentification and/or source are transmitted
The ShortMAC-I of PLMN mark and/or the source base station RAT.
Step 2: the base station target RAT sends the solicited message for obtaining terminal contexts, target to the core net of target RAT
RAT core net obtains terminal contexts from source RAT core net by the interface between target RAT core net and source RAT core net
Afterwards, terminal NAS context is created, and AS context is sent to the base station target RAT；
Step 3: the base station target RAT is mapped according to acquired terminal AS context, comprising:
1) using the default RRC configuration under target RAT, SRB (Signaling Radio Bearer) configuration including default,
The DRB (Data Radio Bearer) of default is configured and PDCP layer, MAC layer and the physical layer configurations of default；Alternatively, full
The radio bearer configuration of the radio bearer qos requirement of sufficient source RAT configuration.And/or
2) safe context of source RAT is continued to use；Alternatively, the security algorithm that configuration is new.
When mapping successfully, base station issues the difference value of the AS context after mapping by RRC information, when core net path
After converting, notice source RAT discharges the context of the terminal；The difference value of the AS context includes:
1) it is configured using the default RRC under the instruction of the default RRC configuration under target RAT or target RAT
Index value, or meet source RAT configuration radio bearer qos requirement radio bearer configuration and target RAT under
The radio bearer of the difference value of default RRC configuration or the radio bearer qos requirement for meeting source RAT configuration under target RAT
The difference value that configuration is configured with radio bearer under the RAT of source；
2) instruction of the safe context of source RAT or the difference value of new security algorithm and source security algorithm are continued to use.
In this way, the method for the transfer of the state between LTE and NR and eLTE and NR proposed through the invention, can solve
State branch problem caused by mobility between different system when moving terminal between LTE/eLTE and NR system, reuses source RAT
Terminal contexts, avoid newly-built radio resource and safety be reconfigured caused by time delay and signaling overheads.
Based on the same inventive concept, a kind of network equipment, the specific reality of the network equipment are provided in the embodiment of the present invention
The description that can be found in embodiment of the method part is applied, overlaps will not be repeated, as shown in figure 8, the network equipment specifically includes that
First receiving module 801, the end for unactivated state or light connection status in first network system
When end enters second network system different from first network system by the first network system, reception is reported by the terminal
For information needed for obtaining the source AS contextual information of the terminal；
First mapping block 802, for the source AS contextual information based on terminal described in the acquisition of information and to described
Source AS contextual information is mapped.
In possible embodiment, the first receiving module 801 is specifically used for:
After the terminal carries out network system selection, the source for being used to obtain the terminal reported by the terminal is received
Parameter information needed for AS contextual information.
It is described for parameter information needed for obtaining the source AS context of the terminal in possible embodiment, at least
One or more combinations including following information:
Terminal iidentification of the terminal under the source network node in the first network system；
PLMN mark of the terminal under the source network node；
Short MAC-I of the terminal under the source network node；
Terminal core network location area under the source network node identifies.
In possible embodiment, the first mapping block 802 is specifically used for:
According to the information, described in being obtained in the core net of the source network node and/or the first network system
Source AS contextual information of the terminal in the first network system；
The source AS contextual information is mapped.
In possible embodiment, the network side maps the source AS contextual information, includes at least as follows
One or more combinations of mapping:
It is configured using default RRC corresponding with the target network node in second network system, it is described
Default RRC configuration is configured including the Signaling Radio Bearer of default, the Data Radio Bearer of default configures,
The configuration of PDCP layer, the MAC layer configuration of default and the physical layer configurations of default of default；
The radio bearer configuration required using the radio bearer Qos for meeting the source network node configuration；
Continue to use safe context corresponding with the source network node；
Configure new security algorithm.
In possible embodiment, the network equipment further include:
First notification module 803, for after notifying the terminal to map by RRC information AS contextual information with it is described
The difference value of source AS contextual information.
In possible embodiment, the difference value includes at least one of following information:
Use the instruction of the default RRC configuration under the target network node；
The index value of default RRC configuration under the target network node；
Under the radio bearer configuration and the destination node that meet the radio bearer qos requirement of the source network node configuration
Default RRC configuration difference value；
The radio bearer for meeting the radio bearer qos requirement of the source network node configuration under the target network node is matched
Set the difference value with the radio bearer configuration under the source network node；
Continue to use the instruction of the safe context of the source network node；
The difference value of the new security algorithm and source security algorithm.
In possible embodiment, the network equipment further include:
Second notification module 804 enters the corresponding core of second network system by the first network system for working as
After heart network diameter converts, the source network node is notified to discharge the source AS contextual information.
Based on the same inventive concept, the embodiment of the invention provides a kind of network equipment, the specific implementations of the network equipment
It can be found in the description of embodiment of the method part, overlaps will not be repeated, as shown in figure 9, the network equipment mainly includes processing
Device 901, memory 902 and transceiver 903, wherein transceiver 903 sends and receivees data under the control of processor 901, deposits
Preset program is preserved in reservoir 902, processor 901 reads the program in memory 902, executes following mistake according to the program
Journey:
The terminal of unactivated state or light connection status in first network system is by the first network system
When into second network system different from first network system, processor 901 receive by the terminal report for obtaining
Information needed for the source AS contextual information of the terminal；
Source AS contextual information of the processor 901 based on terminal described in the acquisition of information simultaneously believes the source AS context
Breath is mapped.
Wherein, in Fig. 9, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor 901
The various circuits for the memory that the one or more processors and memory 902 of representative represent link together.Bus architecture is also
Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can be linked together, these are all
It is it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 903 can
To be multiple element, that is, includes transmitter and transceiver, the list for communicating over a transmission medium with various other devices is provided
Member.Processor 901, which is responsible for management bus architecture and common processing, memory 902, can store processor 901 and is executing operation
When used data.
In possible embodiment, after the terminal carries out network system selection, processor 901 is received by the terminal
Report for parameter information needed for obtaining the source AS contextual information of the terminal.
It is described for parameter information needed for obtaining the source AS context of the terminal in possible embodiment, at least
One or more combinations including following information:
Terminal iidentification of the terminal under the source network node in the first network system；
PLMN mark of the terminal under the source network node；
Short MAC-I of the terminal under the source network node；
Terminal core network location area under the source network node identifies.
In possible embodiment, processor 901 is according to the information, from the source network node and/or described first
Source AS contextual information of the terminal in the first network system is obtained in the core net of network system；Processor 901
The source AS contextual information is mapped.
In possible embodiment, the network side maps the source AS contextual information, includes at least as follows
One or more combinations of mapping:
It is configured using default RRC corresponding with the target network node in second network system, it is described
Default RRC configuration is configured including the Signaling Radio Bearer of default, the Data Radio Bearer of default configures,
The configuration of PDCP layer, the MAC layer configuration of default and the physical layer configurations of default of default；
The radio bearer configuration required using the radio bearer Qos for meeting the source network node configuration；
Continue to use safe context corresponding with the source network node；
Configure new security algorithm.
In possible embodiment, processor 901 notifies the AS contextual information after the terminal mapping by RRC information
With the difference value of the source AS contextual information.
In possible embodiment, the difference value includes at least one of following information:
Use the instruction of the default RRC configuration under the target network node；
The index value of default RRC configuration under the target network node；
Under the radio bearer configuration and the destination node that meet the radio bearer qos requirement of the source network node configuration
Default RRC configuration difference value；
The radio bearer for meeting the radio bearer qos requirement of the source network node configuration under the target network node is matched
Set the difference value with the radio bearer configuration under the source network node；
Continue to use the instruction of the safe context of the source network node；
The difference value of the new security algorithm and source security algorithm.
In possible embodiment, when by the first network system enter the corresponding core net of second network system
After the completion of path integration, processor 901 notifies the source network node to discharge the source AS contextual information.
Based on the above-mentioned technical proposal, the unactivated state or light in the embodiment of the present invention, in first network system
When the terminal of connection status enters second network system different from first network system by the first network system, described the
The network side of two network systems is received to be used to obtain needed for the source AS contextual information of the terminal as what the terminal reported
Information, wherein the unactivated state or the light connection status are to release the terminal for characterizing network node
RRC connection, but the terminal and the network node are stored with AS contextual information of the terminal under the network node
State；Source AS contextual information of the network side based on terminal described in the acquisition of information simultaneously believes the source AS context
Breath is mapped, and when so that terminal moving between different system, network side can be realized based on the source AS contextual information of terminal
State transfer, and the terminal contexts of source network node are reused, avoid time delay caused by newly-built radio resource and safety reconfiguration
And signaling overheads.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.)
Formula.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (14)
1. a kind of SOT state of termination across RAT determines method characterized by comprising
The terminal of unactivated state or light connection status in first network system is entered by the first network system
When different from first network system the second network system, the network side reception of second network system is reported by the terminal
For information needed for obtaining the source AS contextual information of the terminal；
Source AS contextual information of the network side based on terminal described in the acquisition of information and to the source AS contextual information
It is mapped；
It is described for parameter information needed for obtaining the source AS context of the terminal, one kind or more including at least following information
Kind combination:
Terminal iidentification of the terminal under the source network node in the first network system；
PLMN mark of the terminal under the source network node；
Short MAC-I of the terminal under the source network node；
Terminal core network location area under the source network node identifies.
2. the method as described in claim 1, which is characterized in that the network side of second network system is received by the terminal
Report for information needed for obtaining the source AS contextual information of the terminal, comprising:
After the terminal carries out network system selection, the network side is received to be used to obtain the end by what the terminal reported
Parameter information needed for the source AS contextual information at end.
3. the method as described in claim 1, which is characterized in that source of the network side based on terminal described in the acquisition of information
AS contextual information simultaneously maps the source AS contextual information, comprising:
The network side is according to the information, from obtaining in the core net of the source network node and/or the first network system
Take source AS contextual information of the terminal in the first network system；
The network side maps the source AS contextual information.
4. the method as described in claim 1, which is characterized in that the network side reflects the source AS contextual information
It penetrates, including at least the one or more combinations mapped as follows:
It is configured using default RRC corresponding with the target network node in second network system, the default
RRC configuration is configured including the Signaling Radio Bearer of default, the Data Radio Bearer of default configures, the PDCP of default
Layer configuration, the MAC layer configuration of default and the physical layer configurations of default；
The radio bearer configuration required using the radio bearer Qos for meeting the source network node configuration；
Continue to use safe context corresponding with the source network node；
Configure new security algorithm.
5. such as method of any of claims 1-4, which is characterized in that be based on the acquisition of information in the network side
The source AS contextual information of the terminal and after mapping the source AS contextual information, the method also includes:
The network side notifies AS contextual information and the source AS contextual information after the terminal mapping by RRC information
Difference value.
6. method as claimed in claim 5, which is characterized in that the difference value includes at least one of following information:
Use the instruction of the default RRC configuration under the target network node in second network system；
The index value of default RRC configuration under the target network node；
Under the radio bearer configuration and the destination node that meet the radio bearer qos requirement of the source network node configuration
The difference value of default RRC configuration；
Meet under the target network node radio bearer qos requirement of source network node configuration radio bearer configuration and
The difference value of radio bearer configuration under the source network node；
Continue to use the instruction of the safe context of the source network node；
The new security algorithm of configuration and the difference value of source security algorithm.
7. method as claimed in claim 5, which is characterized in that notify the terminal to reflect by RRC information in the network side
After the difference value of AS contextual information after penetrating and the source AS contextual information, the method also includes:
After being converted by the first network system into the corresponding core net path of second network system, the net
Network side notifies the source network node to discharge the source AS contextual information.
8. a kind of network equipment characterized by comprising
First receiving module, the terminal for unactivated state or light connection status in first network system is by described
When first network system enters second network system different from first network system, receives and be used to obtain by what the terminal reported
Information needed for taking the source AS contextual information of the terminal；
First mapping block, for the source AS contextual information based on terminal described in the acquisition of information and to the source AS or more
Literary information is mapped；
It is described for parameter information needed for obtaining the source AS context of the terminal, one kind or more including at least following information
Kind combination:
Terminal iidentification of the terminal under the source network node in the first network system；
PLMN mark of the terminal under the source network node；
Short MAC-I of the terminal under the source network node；
Terminal core network location area under the source network node identifies.
9. the network equipment as claimed in claim 8, which is characterized in that first receiving module is specifically used for:
After the terminal carries out network system selection, the source AS for being used to obtain the terminal reported by the terminal is received
Parameter information needed for context information.
10. the network equipment as claimed in claim 8, which is characterized in that first mapping block is specifically used for:
According to the information, from obtaining the terminal in the core net of the source network node and/or the first network system
Source AS contextual information in the first network system；
The source AS contextual information is mapped.
11. the network equipment as claimed in claim 8, which is characterized in that the network side to the source AS contextual information into
Row mapping, including at least the one or more combinations mapped as follows:
It is configured using default RRC corresponding with the target network node in second network system, the default
RRC configuration is configured including the Signaling Radio Bearer of default, the Data Radio Bearer of default configures, the PDCP of default
Layer configuration, the MAC layer configuration of default and the physical layer configurations of default；
The radio bearer configuration required using the radio bearer Qos for meeting the source network node configuration；
Continue to use safe context corresponding with the source network node；
Configure new security algorithm.
12. the network equipment as described in any one of claim 8-11, which is characterized in that the network equipment further include:
First notification module, for the AS contextual information and the source AS after notifying the terminal to map by RRC information
The difference value of context information.
13. the network equipment as claimed in claim 12, which is characterized in that the difference value includes at least one in following information
Kind:
Use the instruction of the default RRC configuration under the target network node in second network system；
The index value of default RRC configuration under the target network node；
Under the radio bearer configuration and the destination node that meet the radio bearer qos requirement of the source network node configuration
The difference value of default RRC configuration；
Meet under the target network node radio bearer qos requirement of source network node configuration radio bearer configuration and
The difference value of radio bearer configuration under the source network node；
Continue to use the instruction of the safe context of the source network node；
The new security algorithm of configuration and the difference value of source security algorithm.
14. the network equipment as claimed in claim 12, which is characterized in that the network equipment further include:
Second notification module enters the corresponding core net path of second network system by the first network system for working as
After converting, the source network node is notified to discharge the source AS contextual information.
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