CN108616950A

CN108616950A - Motion management method, equipment of the core network between Radio Access Network and base station

Info

Publication number: CN108616950A
Application number: CN201611235422.2A
Authority: CN
Inventors: 梁靖
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-12-28
Filing date: 2016-12-28
Publication date: 2018-10-02
Anticipated expiration: 2036-12-28
Also published as: CN108616950B; WO2018121644A1

Abstract

The present invention provides motion management method, equipment of the core network and the base stations between a kind of Radio Access Network.The present invention the terminal of unactivated state occur different systems it is mobile when, still retain the user context information when terminal is in inactive state in NR systems and just delete above-mentioned user context information until meet certain conditions.The inter RAT mobile management to the terminal of unactivated state may be implemented in the present invention, solves the mobility problem between different system, terminal is allow to work normally.

Description

Motion management method, equipment of the core network between Radio Access Network and base station

Technical field

The present invention relates to mobile communication technology fields, and in particular to the mobile management side between a kind of Radio Access Network Method, equipment of the core network and base station.

Background technology

With the development of wireless communication system, terminal type and type of service diversification, saving power for terminal save Internet resources With meet the needs of various businesses type and deposit.In order to ensure saving power for terminal and rapid data transmission simultaneously, new in 5G is eated dishes without rice or wine (NR) a kind of new mobility status is introduced in the new wireless access technology (New RAT) of system：RRC_INACTIVE is (herein Also referred to as inactive state or inactive states).

Under inactive states terminal keep core net connection, but without the routine operation for connected state of eating dishes without rice or wine (as switching, on Row timing update, radio link monitoring etc.), the terminal iidentification (such as C-RNTI) for being directly used in air interface transmission is not distributed, therefore not Air-interface scheduling transmission can directly be carried out.Under inactive (inactive) state, terminal needs to monitor paging message, can with guarantee To receive the calling from network side.

Fig. 1 is the interface in the network architecture of next-generation (NextGen) network, wherein gNB is New RAT (NR) system In base station.NG2 indicates the control plane interface of Radio Access Network (RAN, Radio Access Network) and core net, NG3 indicates the interface in the user plane of RAN and core net.The base stations NR gNB by interface in the user plane NG3 be connected to 5G core nets (NGC, NextGen Core) user plane functions (UP functions) unit, the control of NGC is connected to by control plane interface NG2 Face function (CP functions) unit.For terminal (UE) under inactive state, although RAN node releases the radio resource of the UE (RRC) connection is controlled, but still retains the connection of the NG2 and NG3 interfaces of UE.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, and RAN needs to page at this time UE。

The general of the band of position of core network level (CN level) and radio access network level (RAN level) is described below It reads.

The bands of position UE of the bands of position CN level, i.e. core net control, commonly referred to as tracking area (TA, Tracking Area).In the prior art, core net is that UE configures TA always by Non-Access Stratum (NAS, Non Access Stratum) message List (TAI list).UE store core net configuration TAI List, when resident (terminal is Idle state) or access (terminal be company Connect state) cell when, read cell and eat dishes without rice or wine the system message of broadcast, therefrom obtain information and obtain TAI, if the TAI Be not stored in TAI list, then UE initiating updating of tracking area (TAU, Tracking Area Update) process, by with core The NAS signaling interaction of heart net obtains new TAI List.

Before being not introduced into inactive states, it is TA in the band of position of Idle state that UE, which only has Idle state and connected state, UE, It is cell in the band of position of connected state.After introducing inactive states, the band of position RAN level is introduced for UE, i.e., RAN notification areas (RNA, RAN Notification Area).RNA can include multiple cells.RAN network side node NR bases Stand (gNB) can send a notification message under multiple cells in the regions RNA find UE.When UE remove a RNA after, need into Row RNA updates, so that RAN network side nodes can find the UE.

TA and RNA is the bands of position UE safeguarded respectively by core net node and RAN node, and effect is to make core respectively Net node and RAN node can carry out band of position tracking to UE.When UE is in Idle state, core net passes through the TAI in UE Paging (paging) message is sent in all cells under the regions list searches UE；UE is under inactive states, RAN node GNB passes through (notification) lookup UE that sends a notification message in all cells under the regions RNA.

Cross wireless access technology (inter-RAT) network architecture of NR and eLTE/LTE is described below.

Please refer to the inter-RAT network architectures of eLTE and NR shown in Fig. 2, the base stations NR gNB and the base stations eLTE eLTE ENB is all connected to 5G core nets (NGC, NextGen Core).As can be seen that gNB and eNB all by user plane (UP) interface and Control plane (CP) interface is connected to NGC.

Please refer to the inter-RAT network architectures of LTE and NR shown in Fig. 3.Wherein, the base stations NR gNB is connected to 5G cores NGC is netted, and LTE base station LTE eNB are connected to 4G core nets evolution block core net (EPC, Evolved Packet Core).

The above two framework that Fig. 2 and Fig. 3 is provided all is inter-RAT frameworks.When inactive states terminal is moved from NR When to LTE/eLTE networks, the mobile behavior that is exactly carried out under the above two network architecture.Since to this, there are no phases at present Standardized content is closed, therefore the behavior of UE is uncertain.

As seen from the above analysis, the prior art only defines the inactive states of NR systems, when in When the UE of inactive states is moved to other communication systems from NR systems (such as LTE/eLTE systems), due to other communication systems There is no inactive states, terminal to will be unable to continue to keep inactive states, the behavior of terminal at this time is uncertain, Wu Fazheng Often work.

Invention content

Technical problems to be solved of the embodiment of the present invention be to provide a kind of motion management method between Radio Access Network, Equipment of the core network and base station, to realize the UE of inactive states from NR networks enter eLTE/LTE networks after mobility pipe Reason.

In order to solve the above technical problems, the motion management method between Radio Access Network provided in an embodiment of the present invention, The Radio Access Network includes the first Radio Access Network RAN and the 2nd RAN, wherein the first RAN is NR systems of newly eating dishes without rice or wine RAN, which is characterized in that the method includes：

Terminal in inactive state detects that this terminal accesses to the 2nd RAN from the first RAN；

Oneself state is switched to Idle state by the terminal from the inactive state, and continues locally retaining the terminal User context information when inactive state is in NR systems.

In above method, after the step of oneself state is switched to Idle state by the terminal from the inactive state, The method further includes：

If the terminal detects that this terminal accesses back the first RAN again, oneself state is switched back into inactive state, and Restore the user context information when terminal is in inactive state in NR systems.

In above method, the 2nd RAN be eLTE systems RAN, the terminal by oneself state from it is described it is non-swash After the step of state living is switched to Idle state, if the terminal initiates uplink signaling procedure in the 2nd RAN, the method is also Including：

It is established in RRC connection procedures in uplink signaling procedure triggering, the terminal will preserve the terminal in NR The prompt message of the first base station of user context information when being in inactive state in system is sent to network side, the prompt Information be the terminal present terminal mark or with the associated inactive state terminal iidentification of the user context information or The mark of first base station；

It is established in RRC connection procedures in uplink signaling procedure triggering, or after the uplink signaling procedure After the paging message for receiving network side transmission, the terminal that the terminal deletion locally retains swashs in NR systems in non- User context information when state living.

In above method, the 2nd RAN be eLTE systems RAN, the terminal by oneself state from it is described it is non-swash After the step of state living is switched to Idle state, if the terminal initiates uplink service process in the 2nd RAN, the method is also Including：

It is established in RRC connection procedures in uplink service process triggering, the terminal will preserve the terminal in NR The prompt message of the first base station of user context information when being in inactive state in system is sent to network side, the prompt Information be the terminal present terminal mark or with the associated inactive state terminal iidentification of the user context information or The mark of first base station；

It is established in RRC connection procedures in uplink service process triggering, the end that the terminal deletion locally retains Hold user context information when being in inactive state in NR systems.

In above method, the 2nd RAN is the RAN of LTE system, in the terminal by oneself state from described inactive State was switched to after the step of Idle state, and the method further includes：

If the terminal initiates RRC connections and establishes process, the terminal that the terminal deletion locally retains is in NR systems User context information when inactive state is in system, and, the terminal will be preserved in NR systems in inactive The prompt message of the first base station of user context information when state is sent to network side, and the prompt message is the terminal Present terminal identify or with the associated inactive state terminal iidentification of the user context information or the mark of first base station.

The terminal starts one by the preconfigured timer of NR systems；

Before the timer expired, if the terminal detects this terminal and accesses back the first RAN again, stop described in Oneself state is switched back into inactive state by timer, and restores the user when terminal is in inactive state in NR systems Contextual information；

After the timer expired, the terminal that the terminal deletion locally retains is in NR systems in inactive User context information when state.

In above method, the 2nd RAN be eLTE systems RAN, the terminal by oneself state from it is described it is non-swash After the step of state living is switched to Idle state, if before the timer expired, the terminal initiates uplink letter in the 2nd RAN Process is enabled, then the method further includes：

In above method, the 2nd RAN be eLTE systems RAN, the terminal by oneself state from it is described it is non-swash After the step of state living is switched to Idle state, if before the timer expired, the terminal initiates industry in the 2nd RAN Business process, then the method further include：

If before the timer expired, the terminal initiates RRC connections and establishes process, then the terminal deletion is locally protected The terminal stayed is in user context information when inactive state in NR systems, and, the terminal will be preserved and existed The prompt message of the first base station of user context information when being in inactive state in NR systems is sent to network side, described to carry Show information be the terminal present terminal mark or with the associated inactive state terminal iidentification of the user context information, Or the mark of first base station.

In above method, after described the step of oneself state is switched back into inactive state, the method further includes：

The terminal initiates the band of position RNA renewal processes of RAN ranks, carries out RNA updates.

The embodiment of the present invention additionally provides the motion management method between a kind of Radio Access Network, the wireless access network Network includes the first Radio Access Network RAN and the 2nd RAN, wherein and the first RAN is the RAN of NR systems of newly eating dishes without rice or wine, described second RAN is the RAN of eLTE systems, the method includes：

First core net of the NR systems receives the first base station in the first RAN in the band of position RNA of RAN ranks The paging failure message sent when the first terminal in inactive state can not be paged, the first base station is described to preserve The base station of user context information of the first terminal in the NR systems；

First core net is initiated to page in the band of position TA of core network level to the first terminal.

In above method, if the first core net of the NR systems receives the second terminal in the 2nd RAN in uplink signaling The prompt message sent in the process is established in the RRC connections of process triggering, and the prompt message is for prompting in the first RAN The second base station, second base station is the base for preserving user context information of the second terminal in the NR systems It stands；Then the method further includes：

First core net continues the control plane interface for keeping the second terminal in NR systems according to the prompt message NG2 connections are connected with interface in the user plane GN3, and, one is sent for notifying second base station to continue to keep to the second base station The notification message of the connection of the second terminal.

In above method, after the uplink signaling procedure of the second terminal, the method further includes：

First core net discharges the connection between the second terminal and the eLTE systems.

It is described after the step of discharging the connection between the second terminal and the eLTE systems in above method Method further includes：

First core net the second terminal downlink business reach when, directly in the 2nd RAN of eLTE systems into Row paging, and after the page-response message for receiving the second terminal, the NG2 connections in NR systems by the second terminal It is connected with GN3, the respective base station in the 2nd RAN is transferred to from first base station, and, one is sent for notifying institute to the second base station When stating the second base station and discharging the connection of the second terminal and delete the second terminal and be in inactive state in NR systems User context information notification message.

In above method, if the first core net of the NR systems receives the third terminal in the 2nd RAN in RRC connections Establish the prompt message that sends in the process, the prompt message is used to prompt the third base station in the first RAN, and described the Three base stations are the base station for preserving user context information of the third terminal in the NR systems, then the method is also wrapped It includes：

First core net connects control plane interface NG2 of the third terminal in NR systems according to the prompt message It connects and is connected with interface in the user plane GN3, the respective base station being transferred in the 2nd RAN, and, one is sent for notifying to third base station The third base station discharges the connection of the third terminal and deletes the third terminal is in inactive state in NR systems When user context information notification message.

In above method, it is what third terminal was triggered when initiating uplink signaling procedure that process is established in the RRC connections, or What person triggered when initiating uplink service process.

The embodiment of the present invention additionally provides the motion management method between another Radio Access Network, the wireless access Network includes the first Radio Access Network RAN and the 2nd RAN, wherein and the first RAN is the RAN of NR systems of newly eating dishes without rice or wine, described second RAN is the RAN of LTE system, the method includes：

First core net of the NR systems receives the terminal in the 2nd RAN and establishes one sent in the process in RRC connections Prompt message, the prompt message are used to prompt the first base station in the first RAN, the first base station described to preserve The base station of user context information of the terminal in the NR systems；

First core net sends one for notifying the first base station to discharge institute according to the prompt message, to first base station The notice stated the connection of terminal and delete the user context information when terminal is in inactive state in NR systems disappears Breath.

In above method, first core net further by the interface between the EPC of the LTE system, receives The prompting message of the EPC forwardings.

The embodiment of the present invention additionally provides the motion management method between another Radio Access Network, the wireless access Network includes the first Radio Access Network RAN and the 2nd RAN, wherein and the first RAN is the RAN of NR systems of newly eating dishes without rice or wine, described second RAN is the RAN of eLTE systems, the method includes：

First base station in first RAN is initiated in the band of position RNA of RAN ranks to first in inactive state The paging of terminal, the first base station preserve the second terminal in the NR systems be in inactive state when user on Context information；

If the first RAN can not page the first terminal in the RNA, to the first core net of the NR systems It sends one and indicates the paging failure message sent when can not page first terminal in RNA.

In above method, if first base station receives the one of the transmission of the first core net it is used to that the first base station to be notified to continue Keep second terminal connection notification message, then the method includes：

First base station starts a timer, and before the timer expired according to the notification message, keeps described the Connection of two terminals in NR systems retains the user's context letter when second terminal is in inactive state in NR systems Breath, and, after the timer expired, discharges the connection of the second terminal and delete the second terminal in NR systems In be in inactive state when user context information.

In above method, if first base station receives the one of the transmission of the first core net it is used to that the first base station to be notified to discharge The connection of the second terminal and the user's context deleted when the second terminal is in inactive state in NR systems are believed The notification message of breath, then the method includes：

According to the notification message, the connection and the deletion second terminal that discharge the second terminal exist first base station User context information when inactive state is in NR systems.

The first base station of the NR systems receives the first core net of the NR systems is sent one for notifying described the One base station discharges the connection of terminal and deletes the user context information when terminal is in inactive state in NR systems Notification message；

First base station discharges the connection of the terminal and deletes the terminal in NR systems according to the notification message User context information when in inactive state.

The embodiment of the present invention additionally provides a kind of terminal, and the terminal includes：

First detection unit detects that this terminal accesses to the from the first RAN for when this terminal is in inactive state Two RAN, wherein the first RAN is the RAN of NR systems of newly eating dishes without rice or wine；

Oneself state is switched to Idle state from the inactive state for the terminal, and continued by the first switch unit User context information when locally retaining the terminal and being in inactive state in NR systems.

The above terminal further includes：

Second detection unit, for detecting that this terminal accesses back the first RAN again；

Second switch unit, for when second detection unit detects that this terminal accesses back a RAN again, by itself State switches back into inactive state, and restores the user context information when terminal is in inactive state in NR systems.

In the above terminal, the 2nd RAN is the RAN of eLTE systems, and the terminal further includes：

First signaling initiate unit, for by the SOT state of termination after the inactive state is switched to Idle state, if Uplink signaling procedure is initiated in 2nd RAN, and is established in RRC connection procedures in uplink signaling procedure triggering, the terminal By preserve the terminal in NR systems be in inactive state when user context information first base station prompt message It is sent to network side, the prompt message is the present terminal mark of the terminal or is associated with the user context information Inactive state terminal iidentification or first base station mark；And it establishes RRC in uplink signaling procedure triggering and connected Cheng Zhong, or after receiving after the uplink signaling procedure paging message of network side transmission, the terminal deletion sheet The terminal that ground retains is in user context information when inactive state in NR systems.

First business initiate unit, for by the SOT state of termination after the inactive state is switched to Idle state, if Uplink service process is initiated in 2nd RAN, and is established in RRC connection procedures in uplink service process triggering, the terminal By preserve the terminal in NR systems be in inactive state when user context information first base station prompt message It is sent to network side, the prompt message is the present terminal mark of the terminal or is associated with the user context information Inactive state terminal iidentification or first base station mark；And it establishes RRC in uplink service process triggering and connected Cheng Zhong, the terminal that the terminal deletion locally retains are in user context information when inactive state in NR systems.

In the above terminal, the 2nd RAN is the RAN of LTE system, and the terminal further includes：

First connection establishment unit, for by the SOT state of termination after the inactive state is switched to Idle state, if hair Rise RRC connections establish process, then delete the terminal locally retained in NR systems in inactive state when user above and below Literary information, and, by preserve the terminal in NR systems be in inactive state when user context information the first base The prompt message stood is sent to network side, the prompt message be the terminal present terminal mark or on the user The mark of the associated inactive state terminal iidentification of context information or first base station.

In the above terminal, further include：

Timing processing unit, for by the SOT state of termination after the inactive state is switched to Idle state, start one by The preconfigured timer of NR systems；And before the timer expired, if the terminal detects that this terminal accesses again The first RAN is returned, then stops the timer, oneself state is switched back into inactive state, and restore the terminal in NR systems User context information when in inactive state；After the timer expired, the terminal locally retained is deleted in NR User context information when inactive state is in system.

Second signaling initiate unit, for the step of the SOT state of termination is switched to Idle state from the inactive state it Afterwards, if before the timer expired, uplink signaling procedure is initiated in the 2nd RAN, then is triggered in the uplink signaling procedure It establishes in RRC connection procedures, user context information when will preserve the terminal in the NR systems and be in inactive state The prompt message of first base station is sent to network side, the prompt message be the terminal present terminal mark or with it is described The mark of the associated inactive state terminal iidentification of user context information or first base station；And in the uplink signaling procedure Triggering is established in RRC connection procedures, or the paging message of network side transmission is received after the uplink signaling procedure Afterwards, the user context information when terminal locally retained is in inactive state in NR systems is deleted.

Second business initiate unit, for by the SOT state of termination after the inactive state is switched to Idle state, if Before the timer expired, uplink service process is initiated in the 2nd RAN, then establishes RRC in uplink service process triggering In connection procedure, by preserve the terminal in NR systems be in inactive state when user context information first base station Prompt message be sent to network side, the prompt message be the terminal present terminal mark or with above and below the user The inactive state terminal iidentification of literary information association or the mark of first base station；And it triggers and establishes in the uplink service process In RRC connection procedures, the user context information when terminal locally retained is in inactive state in NR systems is deleted.

Second connection establishment unit, for by the SOT state of termination after the inactive state is switched to Idle state, if It before the timer expired, initiates RRC connections and establishes process, then delete the terminal locally retained in NR systems in non- User context information when activated state, and, by preserve the terminal in NR systems be in inactive state when user The prompt message of the first base station of contextual information is sent to network side, and the prompt message is the present terminal mark of the terminal Know or with the associated inactive state terminal iidentification of the user context information or the mark of first base station.

In the above terminal, the terminal further includes：

Updating unit, for after the SOT state of termination is switched back into inactive state, initiating the band of position RNA of RAN ranks Renewal process carries out RNA updates.

The embodiment of the present invention additionally provides a kind of first core net of new NR systems of eating dishes without rice or wine, including：

First receiving unit, the first base station for receiving in the first RAN can not in the band of position RNA of RAN ranks The paging failure message sent when the first terminal in inactive state is paged, the first base station is to preserve described first The base station of user context information of the terminal in the NR systems, the first RAN are the RAN of NR systems of newly eating dishes without rice or wine；

First paging unit, for initiating to page to the first terminal in the band of position TA of core network level.

Above first core net further includes：

Second receiving unit is built for receiving the RRC connections that the second terminal in the 2nd RAN is triggered in uplink signaling procedure The vertical prompt message sent in the process, the prompt message are used to prompt the second base station in the first RAN, and described second Base station is the base station for preserving user context information of the second terminal in the NR systems, and the 2nd RAN is The RAN of eLTE systems；

First processing units, for according to the prompt message, continuing to keep control of the second terminal in NR systems Face interface NG2 connections processed are connected with interface in the user plane GN3, and, one is sent for notifying second base station to the second base station Continue to keep the notification message of the connection of the second terminal.

Above first core net further includes：

Connection Release unit, for after the uplink signaling procedure of the second terminal, discharging the second terminal With the connection between the eLTE systems.

Above first core net further includes：

First paging unit, for being discharged between the second terminal and the eLTE systems in the Connection Release unit Connection after, if the second terminal downlink business reach, directly paged in the 2nd RAN of eLTE systems, And after the page-response message for receiving the second terminal, by the second terminal, NG2 connections and GN3 connect in NR systems It connects, the respective base station in the 2nd RAN is transferred to from first base station, and, one is sent for notifying described second to the second base station Base station discharges the connection of the second terminal and deletes the user when second terminal is in inactive state in NR systems The notification message of contextual information.

Above first core net further includes：

Third receiving unit establishes one carrying of sending in the process for receiving the third terminal in the 2nd RAN in RRC connections Show information, the prompt message is used to prompt the third base station in the first RAN, and the third base station is to preserve described the The base station of user context information of three terminals in the NR systems, then first core net further include：

Second processing unit, for according to the prompt message, control plane of the third terminal in NR systems to be connect Mouth NG2 connections are connected with interface in the user plane GN3, the respective base station being transferred in the 2nd RAN, and, send one to third base station It is in NR systems for notifying the third base station to discharge the connection of the third terminal and deleting the third terminal The notification message of user context information when inactive state.

It is that third terminal is triggered when initiating uplink signaling procedure that process is established in RRC connections described in above first core net , or triggered when initiating uplink service process.

First receiving unit establishes send in the process one prompt letter for receiving the terminal in the 2nd RAN in RRC connections Breath, it is to preserve the terminal to exist that the prompt message, which is used to prompt the first base station in the first RAN, the first base station, The base station of user context information in the NR systems, the 2nd RAN are the RAN of LTE system；

First transmission unit, for sending one for notifying the first base station to discharge the company of the terminal to first base station Connect and delete the terminal in NR systems be in inactive state when user context information notification message.

In above first core net, first receiving unit, further by between the EPC of the LTE system Interface receives the prompting message of the EPC forwardings.

The embodiment of the present invention additionally provides a kind of first base station of the Radio Access Network of new NR systems of eating dishes without rice or wine, including：

Paging unit, for being initiated in inactive state in the band of position RNA of the RAN ranks in the first RAN The paging of first terminal, the first base station preserve the use when second terminal is in inactive state in the NR systems Family contextual information, the first RAN are the RAN of NR systems of newly eating dishes without rice or wine；

First transmission unit, if the first terminal can not be paged in the RNA for the first RAN, to described First core net of NR systems sends one and indicates the paging failure message sent when can not page first terminal in RNA.

The above first base station further includes：

First receiving unit, for receiving the one of the transmission of the first core net for notifying the first base station to continue holding the The notification message of the connection of two terminals；

First processing units, for according to the notification message, starting a timer, and before the timer expired, Connection of the second terminal in NR systems is kept, the use when second terminal is in inactive state in NR systems is retained Family contextual information, and, after the timer expired, discharges the connection of the second terminal and delete described second eventually Hold user context information when being in inactive state in NR systems.

The above first base station further includes：

Second receiving unit, for receiving the one of the transmission of the first core net for notifying first base station release described the The connections of two terminals and delete the logical of user context information when the second terminal is in inactive state in NR systems Know message；

Second processing unit, for according to the notification message, discharging described in the connection and deletion of the second terminal Second terminal is in user context information when inactive state in NR systems.

Receiving unit for receiving the one of the transmission of the first core net of the NR systems is used to that the first base station to be notified to release The notice put the connection of terminal and delete the user context information when terminal is in inactive state in NR systems disappears Breath；

Releasing unit, for according to the notification message, discharging the connection of the terminal and deleting the terminal in NR User context information when inactive state is in system.

Compared with prior art, the motion management method between Radio Access Network provided in an embodiment of the present invention, core Net equipment and base station, unactivated state terminal occur different systems it is mobile when, still retain the terminal in NR systems In user context information when being in inactive state just delete above-mentioned user context information until meet certain conditions.This The inter-RAT mobile management to the terminal of unactivated state may be implemented in invention, and the mobility solved between different system is asked Topic, allows terminal to work normally.

Description of the drawings

Fig. 1 is the network architecture schematic diagram of the next generation (NextGen) network of the prior art；

Fig. 2 is the inter-RAT network architecture schematic diagrams of the eLTE and NR of the prior art；

Fig. 3 is the inter-RAT network architecture schematic diagrams of the LTE and NR of the prior art；

Fig. 4 is applied to flow diagram when terminal for the motion management method of the embodiment of the present invention；

Fig. 5 is applied to a kind of flow diagram when NR core nets for the motion management method of the embodiment of the present invention；

Fig. 6 is applied to another flow diagram when NR core nets for the motion management method of the embodiment of the present invention；

Fig. 7 is applied to another flow diagram when NR core nets for the motion management method of the embodiment of the present invention；

Fig. 8 is applied to a kind of flow diagram when the base stations NR for the motion management method of the embodiment of the present invention；

Fig. 9 is a kind of structural schematic diagram of the terminal of the embodiment of the present invention；

Figure 10 is another structural schematic diagram of the terminal of the embodiment of the present invention；

Figure 11 is a kind of structural schematic diagram of the core net of the NR systems of the embodiment of the present invention；

Figure 12 is another structural schematic diagram of the core net of the NR systems of the embodiment of the present invention；

Figure 13 is another structural schematic diagram of the core net of the NR systems of the embodiment of the present invention；

Figure 14 is the yet another construction schematic diagram of the core net of the NR systems of the embodiment of the present invention；

Figure 15 is a kind of structural schematic diagram of the base station of the NR systems of the embodiment of the present invention；

Figure 16 is another structural schematic diagram of the base station of the NR systems of the embodiment of the present invention；

Figure 17 is another structural schematic diagram of the base station of the NR systems of the embodiment of the present invention；

Figure 18 is the yet another construction schematic diagram of the base station of the NR systems of the embodiment of the present invention；

Figure 19 is the schematic diagram of a scenario of example 1 provided in an embodiment of the present invention；

Figure 20 is the schematic diagram of a scenario of example 5 provided in an embodiment of the present invention.

Specific implementation mode

To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool Body embodiment is described in detail.In the following description, such as specific configuration is provided and the specific detail of component is only In order to help comprehensive understanding the embodiment of the present invention.It therefore, it will be apparent to those skilled in the art that can be to reality described herein Example is applied to make various changes and modifications without departing from scope and spirit of the present invention.In addition, for clarity and brevity, it is omitted pair The description of known function and construction.

It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text mean it is related with embodiment A particular feature, structure, or characteristic includes at least one embodiment of the present invention.Therefore, occur everywhere in the whole instruction " in one embodiment " or " in one embodiment " not necessarily refer to identical embodiment.In addition, these specific feature, knots Structure or characteristic can in any suitable manner combine in one or more embodiments.In various embodiments of the present invention, it answers Understand, the size of the serial number of following each processes is not meant that the order of the execution order, and the execution sequence of each process should be with its work( It can determine that the implementation process of the embodiments of the invention shall not be constituted with any limitation with internal logic.In addition, the terms " system " and " network " is often used interchangeably herein.

The present embodiment illustrates the behavior of end side for Fig. 2 and application scenarios shown in Fig. 3.

An embodiment of the present invention provides the motion management method between a kind of RAN, apply in the RAN based on different RAT Between, specifically, above-mentioned RAN includes the first RAN and the 2nd RAN, wherein the first RAN is the RAN of NR systems of newly eating dishes without rice or wine, second RAN can be the RAN of 3G systems or 4G systems, can also be the RAN of LTE system or eLTE systems.The subsequent embodiment of this paper It will mainly be illustrated by taking LTE system and eLTE systems as an example.It should be pointed out that the 2nd RAN of the embodiment of the present invention is not It is confined to the RAN of LTE system and eLTE systems.

Please refer to Fig. 4, motion management method provided in an embodiment of the present invention, when applied to end side, including it is following Step：

Step 41, it is in the terminal of inactive state, detects that this terminal accesses to the 2nd RAN from the first RAN.

Here, the first RAN is the RAN of NR systems, and terminal enters inactive state at the first RAN, and the follow-up terminal can Movement can have occurred, enter the 2nd RAN based on different RAT.2nd RAN can be the RAN of 3G/4G/LTE/eLTE systems. When terminal is moved to and accesses two RAN, the modes such as system message for the broadcast that can be eated dishes without rice or wine by reading cell determine currently Through having left the first RAN and having accessed the 2nd RAN based on different RAT.

Step 42, oneself state is switched to Idle state by the terminal from the inactive state, and is continued in local reservation The terminal is in user context information when inactive state in NR systems.

Here, terminal is after entering the 2nd RAN, since inactive state will no longer be suitable for the 2nd RAN, terminal Oneself state is switched to Idle state (RRC-IDLE), and continues to retain the terminal in NR systems in non-in terminal local User context information when activated state.Specifically, above-mentioned contextual information may include the one or more of following information：Nothing Line resource configuration parameter, security parameter, UE ability parameters etc..

By above step, the embodiment of the present invention leaves the first RAN of NR systems to the terminal of inactive state and enters base Behavior after the 2nd RAN of different RAT is defined, and thus the free time that can be worked under the 2nd RAN may be used in terminal State so that SS later can work normally.

The embodiment of the present invention in above-mentioned steps 42, terminal by retain its in NR systems be in inactive state when user Contextual information, in order to quickly revert to inactive state when subsequently returning to NR systems.For example, when terminal detects this terminal weight The first RAN newly is accessed back, oneself state can be switched back into inactive state, and restores the terminal and swashs in non-in NR systems User context information when state living.Base station when accessing a RAN again due to terminal may have occurred variation, no longer be it Before first base station when leaving a RAN, at this point, terminal can also be initiated after oneself state is switched back into inactive state The band of position RNA renewal processes of RAN ranks carry out RNA updates, so that RAN network side nodes can find the UE.

After above-mentioned steps 42, terminal is resided in Idle state in the 2nd RAN.Subsequent terminal may be in the 2nd RAN There is different behaviors.For example, terminal may initiate uplink signaling procedure or uplink service process, in above process, terminal Possible needs are established RRC with network and are connect.The behavior of the terminal of the embodiment of the present invention in above process is illustrated below.

1) when the 2nd RAN is the RAN of eLTE systems, after above-mentioned steps 42, terminal resides in second with Idle state If terminal initiates uplink signaling procedure in the 2nd RAN in RAN, RRC connections are established in uplink signaling procedure triggering In the process, the user context information when terminal can will preserve the terminal in the NR systems and be in inactive state The prompt message of first base station is sent to network side, and the prompt message can be the present terminal mark of the terminal, or It is the mark with the associated inactive state terminal iidentification of the user context information or first base station.Above-mentioned prompt letter Breath is supplied to network side, network side can be made to determine first base station based on prompt message, and first base station is notified to delete the end The above-mentioned contextual information at end.Specifically, the above-mentioned prompt message that user sends can be transmitted directly to by the base station eNB of eLTE NGC is deleted the above-mentioned contextual information of the terminal by NGC notice first base stations.

In addition, established in RRC connection procedures in uplink signaling procedure triggering, or in the uplink signaling procedure knot After the paging message for receiving network side transmission after beam, the terminal can also delete the terminal locally retained in NR systems In be in inactive state when user context information.

2) when the 2nd RAN is the RAN of eLTE systems, after above-mentioned steps 42, terminal resides in second with Idle state In RAN.If follow-up terminal initiates uplink service process in the 2nd RAN, RRC is established in uplink service process triggering In connection procedure, the terminal can by preserve the terminal in NR systems be in inactive state when user's context believe The prompt message of the first base station of breath is sent to network side, the prompt message be the terminal present terminal mark or with The mark of the associated inactive state terminal iidentification of the user context information or first base station.Above-mentioned prompt message is supplied to Network side can make network side determine first base station based on prompt message, and first base station is notified to delete the above-mentioned of the terminal Contextual information.Specifically, the above-mentioned prompt message that user sends can be transmitted directly to NGC by the base station eNB of eLTE, by NGC notice first base stations delete the above-mentioned contextual information of the terminal.

In addition, being established in RRC connection procedures in uplink service process triggering, the terminal can also delete local guarantor The terminal stayed is in user context information when inactive state in NR systems.

3) when the 2nd RAN is the RAN of LTE system, after above-mentioned steps 42, terminal resides in second with Idle state In RAN.If follow-up terminal initiates RRC connections and establishes process, the terminal that the terminal deletion locally retains is in NR systems User context information when inactive state is in system, and, the terminal will be preserved in NR systems in inactive The prompt message of the first base station of user context information when state is sent to network side, and the prompt message is the terminal Present terminal identify or with the associated inactive state terminal iidentification of the user context information or the mark of first base station.On It states prompt message and is supplied to network side, network side can be made to determine first base station based on prompt message, and notify first base station Delete the above-mentioned contextual information of the terminal.Specifically, the above-mentioned prompt message that the base station eNB of LTE can send user is sent out EPC is given, NGC is transmitted to by EPC, and then delete the above-mentioned contextual information of the terminal by NGC notice first base stations.

As another realization method, in the embodiment of the present invention, it can also further be arranged one and be directed to user's context The effective time timer of information, which is based on a scheduled time-out time, after meeting or exceeding the time-out time, Triggering terminal and network side are deleted into the user context information when terminal is in inactive state in NR systems.

The behavior of terminal when using timer to the embodiment of the present invention below illustrates.

After above-mentioned steps 42, in the step of oneself state is switched to Idle state by the terminal from the inactive state Later, terminal starts one by the preconfigured timer of NR systems.Before the timer expired, if the terminal detects this Terminal accesses back the first RAN again, then stops the timer, oneself state is switched back into inactive state, and restore the end Hold user context information when being in inactive state in NR systems.After the timer expired, the terminal deletion sheet The terminal that ground retains is in user context information when inactive state in NR systems.

When starting the timer and being resided in the 2nd RAN with Idle state, before the timer expired, the end End may have different behaviors in the 2nd RAN.For example, terminal may initiate uplink signaling procedure or uplink service process, In above process, terminal, which may need to establish RRC with network, connect.Below to the terminal of the embodiment of the present invention in the above process In behavior illustrate.

1) when the 2nd RAN is the RAN of eLTE systems, after above-mentioned steps 42, terminal resides in second with Idle state In RAN, before the timer expired, if terminal initiates uplink signaling procedure in the 2nd RAN, in the uplink signaling Process triggering establish in RRC connection procedures, the terminal by preserve the terminal in NR systems be in inactive state when The prompt message of the first base station of user context information is sent to network side, and the prompt message is the current end of the terminal End mark or with the associated inactive state terminal iidentification of the user context information or the mark of first base station.Above-mentioned prompt Information is supplied to network side, and network side can be made to determine first base station based on prompt message, and notifies first base station is deleted should The above-mentioned contextual information of terminal.Specifically, the base station eNB of eLTE can directly transmit the above-mentioned prompt message that user sends To NGC, the above-mentioned contextual information of the terminal is deleted by NGC notice first base stations.

In addition, before the timer expired, established in RRC connection procedures in uplink signaling procedure triggering, or After the paging message for receiving network side transmission after the uplink signaling procedure, institute that the terminal deletion locally retains State user context information when terminal is in inactive state in NR systems.

2) when the 2nd RAN is the RAN of eLTE systems, after above-mentioned steps 42, terminal resides in second with Idle state In RAN, before the timer expired, if the terminal initiates uplink service process in the 2nd RAN, in the uplink Business procedure triggering is established in RRC connection procedures, and the terminal will preserve the terminal and be in inactive state in NR systems When the prompt message of first base station of user context information be sent to network side, the prompt message is working as the terminal Preceding terminal iidentification or with the associated inactive state terminal iidentification of the user context information or the mark of first base station.Specifically , the above-mentioned prompt message that user sends can be transmitted directly to NGC by the base station eNB of eLTE, be deleted by NGC notice first base stations Except the above-mentioned contextual information of the terminal.

In addition, before the timer expired, established in RRC connection procedures in uplink service process triggering, it is described The terminal that terminal deletion locally retains is in user context information when inactive state in NR systems.

3) when the 2nd RAN is the RAN of LTE system, after above-mentioned steps 42, terminal resides in second with Idle state In RAN, before the timer expired, if follow-up terminal initiates RRC connections and establishes process, the terminal deletion is locally protected The terminal stayed is in user context information when inactive state in NR systems, and, the terminal will be preserved and existed The prompt message of the first base station of user context information when being in inactive state in NR systems is sent to network side, described to carry Show information be the terminal present terminal mark or with the associated inactive state terminal iidentification of the user context information, Or the mark of first base station.Specifically, the above-mentioned prompt message that user sends can be sent to EPC by the base station eNB of LTE, by EPC is transmitted to NGC, and then the above-mentioned contextual information of the terminal is deleted by NGC notice first base stations.

The motion management method entered above to the terminal of inactive state after other RAN is illustrated.Hereinafter Further it will illustrate above-mentioned motion management method from the core-network side of NR systems.

The present embodiment illustrates the core net behavior of the sides NR for application scenarios shown in Fig. 2.

Please refer to Fig. 5, the motion management method between Radio Access Network RAN provided in an embodiment of the present invention, here RAN includes the first RAN and the 2nd RAN.Here the first RAN is the RAN of NR systems, and the 2nd RAN is the RAN of eLTE.The mobility Management method is applied to the first core-network side of NR systems, includes the following steps：

Step 51, the first core net of the NR systems receives the first base station in the first RAN in the position area of RAN ranks The paging failure message sent when the first terminal in inactive state can not be paged in the RNA of domain, the first base station is to protect There is the base station of user context information of the first terminal in the NR systems.

Step 52, first core net seeks first terminal initiation in the band of position TA of core network level It exhales.

In above step 51, when being paged for inactive state terminal, by preserving first terminal in the NR systems The first base station of user context information in system sends notice in all cells under the regions RNA of the first terminal and disappears It ceases (notification) and searches UE.If paging failure, then it represents that first terminal is possibly off the first RAN, then in step 52 In, the first core net further is initiated to page in the band of position TA of core network level to the first terminal.

By above step, can be carried out after the first terminal in inactive state leaves the first RAN to first end The paging at end.

As previously described, the terminal (here, suppose that the terminal is second terminal) for being in inactive state is leaving first RAN and after accessing to the 2nd RAN, which may initiate uplink signaling procedure, in the RRC of this uplink signaling procedure triggering During connection is established, which may send prompt message to network side, and being used to indicate network side preservation has the end It holds in the base station of the user context information of NR systems.The behavior of the first core net in the above process is illustrated below.

First core net of the NR systems of the embodiment of the present invention, it is also possible to which the second terminal received in the 2nd RAN exists The prompt message that sends in the process is established in the RRC connections of uplink signaling procedure triggering, and the prompt message is used to prompt described the The second base station in one RAN, second base station are the user's context for preserving the second terminal in the NR systems The base station of information.

After first core net receives above-mentioned prompting message, you can know that second terminal has been moved off the first RAN and enters 2nd RAN, at this time the first core net continue to keep control plane of the second terminal in NR systems according to the prompt message Interface NG2 connections are connected with interface in the user plane GN3, and, one is sent for notifying second base station to continue to the second base station Keep the notification message of the connection of the second terminal.Subsequently, described after the uplink signaling procedure of the second terminal First core net can discharge the connection between the second terminal and the eLTE systems.

Subsequently, the first core net, can be directly the of eLTE systems when the downlink business of the second terminal reaches It is paged in two RAN, and after the page-response message for receiving the second terminal, by the second terminal in NR systems Middle NG2 connections are connected with GN3, and the respective base station (Pathswitch) in the 2nd RAN is transferred to from first base station, and, to Two base stations send one for notifying second base station discharges the connection of the second terminal and deletes the second terminal to exist The notification message of user context information when in NR systems in inactive state.

In the embodiment of the present invention, as another realization method, uplink that the first core net is initiated in above-mentioned second terminal In signaling procedure, if receiving above-mentioned prompt message, know that second terminal has been moved off the first RAN and enters the 2nd RAN, at this time First core net can directly switch the interface path (Pathswitch) of second terminal, without waiting for the second terminal Downlink business reach when just switch over, i.e., after the first core net receives above-mentioned prompt message, by the second terminal in NR NG2 connections are connected with GN3 in system, and the respective base station (Pathswitch) in the 2nd RAN is transferred to from first base station, and, One is sent for notifying second base station to discharge the connection of the second terminal and deleting described second eventually to the second base station Hold the notification message of user context information when being in inactive state in NR systems.

As previously described, the terminal (here, suppose that the terminal is third terminal) for being in inactive state is leaving first RAN and after accessing to the 2nd RAN, which may initiate uplink service process, in the RRC of this uplink service process triggering During connection is established, which may send prompt message to network side, and being used to indicate network side preservation has the end It holds in the base station of the user context information of NR systems.The behavior of the first core net in the above process is illustrated below.

First core net of the NR systems of the embodiment of the present invention, it is also possible to which the third terminal received in the 2nd RAN exists The prompt message sent in the process is established in RRC connections, the prompt message is used to prompt the third base in the first RAN It stands, the third base station is the base station for preserving user context information of the third terminal in the NR systems.Here, It is what third terminal was triggered when initiating uplink signaling procedure that process is established in the RRC connections, or is initiating uplink service mistake It is triggered when journey.

First core net can connect control plane of the third terminal in NR systems after receiving above-mentioned prompt message Mouth NG2 connections are connected with interface in the user plane GN3, the respective base station being transferred in the 2nd RAN, and, send one to third base station It is in NR systems for notifying the third base station to discharge the connection of the third terminal and deleting the third terminal The notification message of user context information when inactive state.

The present embodiment illustrates the core net behavior of the sides NR for application scenarios shown in Fig. 3.

Please refer to Fig. 6, the motion management method between Radio Access Network RAN provided in an embodiment of the present invention, here RAN includes the first RAN and the 2nd RAN.Here the first RAN is the RAN of NR systems, and the 2nd RAN is the RAN of LTE.The mobility pipe Reason method is applied to the first core-network side of NR systems, includes the following steps：

Step 61, the first core net of the NR systems receives the terminal in the 2nd RAN and is sent out during RRC connections are established The prompt message sent, it is to preserve that the prompt message, which is used to prompt the first base station in the first RAN, the first base station, There is the base station of user context information of the terminal in the NR systems.

Here, process is established in the RRC connections can be that first terminal is triggered when initiating uplink signaling procedure, or It is triggered when initiating uplink service process, it is also possible to which network side finds downlink signaling/business procedure triggering.Described first Core net can receive the prompting message of the EPC forwardings by the interface between the EPC of the LTE system.

Step 62, the first core net sends one for notifying first base according to the prompt message to first base station It stands the user context information for discharging the connection of the terminal and deleting when the terminal is in inactive state in NR systems Notification message.

By in above step, the first core net, can be with after the above-mentioned prompting message for the EPC forwardings for receiving LTE system Instruction first base station discharges the connection of the terminal and deletes the user context information of the first terminal, realizes to inactive The terminal of state enters the mobile management after the RAN of LTE.

Above example two and embodiment three are that the behavior of the core net of NR systems is illustrated.It next will be into one Step illustrates processing of the embodiment of the present invention in the sides wireless access network RAN of NR systems.

Please refer to Fig. 7, the motion management method between Radio Access Network RAN provided in an embodiment of the present invention, here RAN includes the first RAN and the 2nd RAN.Here the first RAN is the RAN of NR systems, and the 2nd RAN is the RAN of eLTE.The mobility Management method is applied to the first sides RAN of NR systems, includes the following steps：

Step 71, the first base station in the first RAN is initiated in the band of position RNA of RAN ranks to being in inactive state First terminal paging, the first base station preserve the first terminal in the NR systems be in inactive state when User context information.

Step 72, if the first RAN can not page the first terminal in the RNA, to the of the NR systems One core net sends one and indicates the paging failure message sent when can not page first terminal in RNA.

In above step, the first RAN fail in RNA paging arrive first terminal, then it represents that first terminal possibly off First RAN.At this point, first base station sends paging failure message to core net, so that core net can be in TA to first end End is paged, and mobile management of the non-active terminal after the RAN for entering e.LTE is realized.

In the embodiment of the present invention, if first base station receive the first core net send one for notify the first base station after The notification message of the connection of second terminal is held in continuation of insurance.

Please refer to Fig. 8, the motion management method between Radio Access Network RAN provided in an embodiment of the present invention, here RAN includes the first RAN and the 2nd RAN.Here the first RAN is the RAN of NR systems, and the 2nd RAN is the RAN of LTE.The mobility pipe Reason method is applied to the first sides RAN of NR systems, includes the following steps：

Step 81, the first base station of the NR systems, receive the first core net transmission of the NR systems one are used to lead to Know the connection of first base station release terminal and deletes on the user when terminal is in inactive state in NR systems The notification message of context information.

Step 82, according to the notification message, the connection and the deletion terminal that discharge the terminal exist first base station User context information when inactive state is in NR systems.

In above step, first base station discharges the connection of the terminal and deletes institute directly according to the notification message User context information when terminal is in inactive state in NR systems is stated, realizes non-active terminal in the RAN for entering LTE Mobile management afterwards.

Based on the motion management method that above example provides, the terminal for implementing the above method is present embodiments provided. Fig. 9 is please referred to, a kind of terminal is present embodiments provided, including：

First detection unit 91, for when this terminal is in inactive state, detecting that this terminal is accessed to from the first RAN 2nd RAN, wherein the first RAN is the RAN of NR systems of newly eating dishes without rice or wine；

Oneself state is switched to Idle state by the first switch unit 92 for the terminal from the inactive state, and after Continue the user context information when locally retaining the terminal and being in inactive state in NR systems.

Here, the terminal can also include：

Here, the 2nd RAN is the RAN of eLTE systems, and the terminal further includes：

Here, the 2nd RAN is the RAN of LTE system, and the terminal further includes：

Here, the terminal further includes：

Figure 10 is please referred to, another terminal is present embodiments provided, including：Processor 101；By bus interface with it is described The memory 103 that processor 101 is connected, and the transceiver 102 that is connected with processor 101 by bus interface；It is described Memory is for storing the processor used program and data when executing operation；It is sent by the transceiver 102 Control command etc.；When processor calls and executes the program and data that are stored in the memory, following function is realized Unit：

Wherein, in Fig. 10, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor The various circuits for the memory that 101 one or more processors represented and memory 103 represent link together.Bus architecture Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can also be linked together, these All it is it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 102 It can be multiple element, that is, include transmitter and transceiver, provide for over a transmission medium being communicated with various other devices Unit.Processor 101 is responsible for bus architecture and common processing, and memory 103 can store processor 101 and execute behaviour Used data when making.

Processor 101 is responsible for bus architecture and common processing, and memory 103 can store processor 101 and hold Used data when row operation.

Based on the motion management method that above example provides, the NR systems for implementing the above method are present embodiments provided Equipment of the core network.Figure 11 is please referred to, a kind of first core net of new NR systems of eating dishes without rice or wine is present embodiments provided, including：

First receiving unit 111, for receiving the nothing in the band of position RNA of RAN ranks of the first base station in the first RAN Method paging is to the paging failure message that sends when first terminal in inactive state, and the first base station is preserves described the The base station of user context information of one terminal in the NR systems, the first RAN are the RAN of NR systems of newly eating dishes without rice or wine.

First paging unit 112, for initiating to page to the first terminal in the band of position TA of core network level.

Here, first core net further includes：

Here, it is what third terminal was triggered when initiating uplink signaling procedure that process is established in the RRC connections, or is being sent out It is triggered when playing uplink service process.

Figure 12 is please referred to, the another of the first core net of new NR systems of eating dishes without rice or wine is present embodiments provided and realizes, including：Place Manage device 121；The memory 123 being connected with the processor 121 by bus interface, and pass through bus interface and processor 121 transceivers 122 being connected；The memory is for storing the processor used program sum number when executing operation According to；Control command etc. is sent by the transceiver 122；When processor calls and executes the program stored in the memory When with data, following functional unit is realized：

First receiving unit, the first base station for receiving in the first RAN can not in the band of position RNA of RAN ranks The paging failure message sent when the first terminal in inactive state is paged, the first base station is to preserve described first The base station of user context information of the terminal in the NR systems, the first RAN are the RAN of NR systems of newly eating dishes without rice or wine.

Wherein, in fig. 12, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor The various circuits for the memory that 121 one or more processors represented and memory 123 represent link together.Bus architecture Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can also be linked together, these All it is it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 122 It can be multiple element, that is, include transmitter and transceiver, provide for over a transmission medium being communicated with various other devices Unit.Processor 121 is responsible for bus architecture and common processing, and memory 123 can store processor 121 and execute behaviour Used data when making.

Processor 121 is responsible for bus architecture and common processing, and memory 123 can store processor 121 and hold Used data when row operation.

Figure 13 is please referred to, the first core net of another NR systems of newly eating dishes without rice or wine is present embodiments provided, including：

First receiving unit 131 establishes one carrying of sending in the process for receiving the terminal in the 2nd RAN in RRC connections Show information, it is to preserve the terminal to exist that the prompt message, which is used to prompt the first base station in the first RAN, the first base station, The base station of user context information in the NR systems, the first RAN is the RAN of NR systems, and the 2nd RAN is LTE The RAN of system.

First transmission unit 132, for sending one for notifying the first base station to discharge the terminal to first base station Connection and delete the notification message of the user context information when terminal is in inactive state in NR systems.

Here, first receiving unit 131 receives further by the interface between the EPC of the LTE system The prompting message of the EPC forwardings.

Figure 14 is please referred to, the another of the first core net of new NR systems of eating dishes without rice or wine is present embodiments provided and realizes, including：Place Manage device 141；The memory 143 being connected with the processor 141 by bus interface, and pass through bus interface and processor 141 transceivers 142 being connected；The memory is for storing the processor used program sum number when executing operation According to；Control command etc. is sent by the transceiver 142；When processor calls and executes the program stored in the memory When with data, following functional unit is realized：

First receiving unit establishes send in the process one prompt letter for receiving the terminal in the 2nd RAN in RRC connections Breath, it is to preserve the terminal to exist that the prompt message, which is used to prompt the first base station in the first RAN, the first base station, The base station of user context information in the NR systems, the 2nd RAN are the RAN of LTE system.

Wherein, in fig. 14, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor The various circuits for the memory that 141 one or more processors represented and memory 143 represent link together.Bus architecture Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can also be linked together, these All it is it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 142 It can be multiple element, that is, include transmitter and transceiver, provide for over a transmission medium being communicated with various other devices Unit.Processor 141 is responsible for bus architecture and common processing, and memory 143 can store processor 141 and execute behaviour Used data when making.

Processor 141 is responsible for bus architecture and common processing, and memory 143 can store processor 141 and hold Used data when row operation.

Based on the motion management method that above example provides, the NR systems for implementing the above method are present embodiments provided Base station.Figure 15 is please referred to, a kind of first base station of new NR systems of eating dishes without rice or wine is present embodiments provided, including：

Paging unit 151, for being initiated in the band of position RNA of the RAN ranks in the first RAN to being in inactive state First terminal paging, the first base station preserve the first terminal in the NR systems be in inactive state when User context information, the first RAN are the RAN of NR systems of newly eating dishes without rice or wine.

First transmission unit 152, if the first terminal can not be paged in the RNA for the first RAN, to institute The first core net for stating NR systems sends the paging failure message sent when an expression can not page first terminal in RNA.

Here, the first base station further includes：

Figure 16 is please referred to, the another of the first core net of new NR systems of eating dishes without rice or wine is present embodiments provided and realizes, including：Place Manage device 161；The memory 163 being connected with the processor 161 by bus interface, and pass through bus interface and processor 161 transceivers 162 being connected；The memory is for storing the processor used program sum number when executing operation According to；Control command etc. is sent by the transceiver 162；When processor calls and executes the program stored in the memory When with data, following functional unit is realized：

Paging unit, for being initiated in inactive state in the band of position RNA of the RAN ranks in the first RAN The paging of first terminal, the first base station preserve the use when second terminal is in inactive state in the NR systems Family contextual information, the first RAN are the RAN of NR systems of newly eating dishes without rice or wine.

Wherein, in figure 16, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor The various circuits for the memory that 161 one or more processors represented and memory 163 represent link together.Bus architecture Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can also be linked together, these All it is it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 162 It can be multiple element, that is, include transmitter and transceiver, provide for over a transmission medium being communicated with various other devices Unit.Processor 161 is responsible for bus architecture and common processing, and memory 163 can store processor 161 and execute behaviour Used data when making.

Processor 161 is responsible for bus architecture and common processing, and memory 163 can store processor 151 and hold Used data when row operation.

Please refer to Figure 17, the first base station of another NR systems of newly eating dishes without rice or wine of the embodiment of the present invention, including：

Receiving unit 171 is used to notify first base for receiving the one of the transmission of the first core net of the NR systems It stands and discharges the connection of terminal and delete leading to for the user context information when terminal is in inactive state in NR systems Know message；

Releasing unit 172 exists for according to the notification message, discharging the connection of the terminal and deleting the terminal User context information when inactive state is in NR systems.

Figure 18 is please referred to, another of the first base station of another NR systems of newly eating dishes without rice or wine of the embodiment of the present invention is realized, including： Processor 181；The memory 183 being connected with the processor 181 by bus interface, and pass through bus interface and processing The transceiver 182 that device 181 is connected；The memory for store the processor execute operate when used program and Data；Control command etc. is sent by the transceiver 182；When processor calls and executes the journey stored in the memory When sequence and data, following functional unit is realized：

Wherein, in figure 18, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor The various circuits for the memory that 181 one or more processors represented and memory 183 represent link together.Bus architecture Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can also be linked together, these All it is it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 182 It can be multiple element, that is, include transmitter and transceiver, provide for over a transmission medium being communicated with various other devices Unit.Processor 181 is responsible for bus architecture and common processing, and memory 183 can store processor 181 and execute behaviour Used data when making.

Processor 181 is responsible for bus architecture and common processing, and memory 183 can store processor 181 and hold Used data when row operation.

The motion management method of the embodiment of the present invention is described above and implements core net and the base station of the above method.It connects Get off further by the example of several entire flows, the invention will be further described.

The scene of example 1 is：The terminal (UE) of inactive states enters the RAN of eLTE networks from the RAN of NR, and UE exists ELTE networks initiate uplink signaling.

For the network architecture of example 1 as shown in Fig. 2 in background technology, concrete scene is as shown in figure 19, which enters in NR Inactive states, the sides gNB and UE all retain user context information when a set of UE is in inactive state in NR systems (NR UE context).GNB can configure the effective time timer (timer) of a NR UE context to UE simultaneously. Later, UE enters eLTE networks from NR networks.Once UE enters eLTE, then start the timer.It should if gNB is not configured The timer is configured to infinity by timer, then UE preserves always NR UE context.

After UE enters eLTE networks, into idle states, still retain the UE context of NR, and start effective timer (such as Fruit has).Before effective timer (if there is) time-out, if UE returns to NR, directly restore inactive states, and extensive Multiple NR UE context.Optionally, UE does a RNA update in NR.After timer time-out, UE deletes NR UE context.

During timer (if there is) is run, UE initiates TAU processes, triggers RRC connections and establishes process, is built in connection During vertical, current UE is identified (such as S-TMSI) by UE, or with the associated inactive UE ID of NRUE context Or the gNB identification notifications of in store NR UE context make NGC know that UE comes into eLTE networks to network.

After NGC knows that UE comes into eLTE networks, NGC can continue to keep the connection of gNB and NGC, and notify gNB Keeping connection, (NGC is based on UE marks, and either the gNB of inactive UE ID or in store NR UE context marks are looked for To the gNB), the base stations NR start the effective time timer (timer) of NR UE context, and NR is kept during timer is run NR UE context are deleted after UE context, timer time-out.After signaling procedure, companies of the NGC release UE in eLTE It connects.If subsequently having downlink business to be sent to UE, and NGC knows UE and is not returned to NR, then NGC is directly sought in eLTE It exhales, after UE response pagings, NG2 the and NG3 interfaces of the UE is transferred to the base stations eLTE from gNB and (for example establish phase in eLTE Interface is closed, and notifies the interface before gNB releases and deletes NR UE context).After UE receives paging, stop NR UE Context timer (if there is), and delete NR UE context.

After NGC knows that UE comes into eLTE networks, another realization method is：NGC is directly by the NG2 of the UE and NG3 Interface is transferred to the base stations eLTE from gNB and (for example establishes relevant interface in eLTE, and the interface before notifying gNB to discharge and NR UE context).And UE just stops NR UE context timer (if there is) when initiation RRC connections are established, and delete NR UE context。

The scene of example 2 is：Inactive states UE enters the RAN of eLTE networks from the RAN of NR, and UE is sent out in eLTE networks Play uplink service.

The network architecture and concrete scene of example 2 are identical as example 1.The UE enters inactive states in NR, gNB and The sides UE all retain a set of NR UE context.GNB can configure the effective time meter of a NR UE context to UE simultaneously When device (timer) once UE enters eLTE then start the timer.If gNB does not configure the timer or the timer It is configured to infinity, then UE preserves always NR UE context.

The UE of inactive states is after NR networks enter eLTE networks, into idle states, still retains the UE of NR Context, and start effective timer (if there is).Before effective timer (if there is) time-out, if UE returns to NR, directly It connects and restores inactive states, and restore NR UE context, optionally, UE does a RNA update in NR.It is super in timer Shi Hou, UE delete NR UE context.

During timer (if there is) is run, UE initiates transmitting uplink data process, triggers RRC connections and establishes process, Request is established in the RRC connections that the base stations eLTE receive the UE, and establishes with NGC the connection of the UE, later NGC by the NG2 of the UE and NG3 interfaces are transferred to the base stations eLTE from gNB.UE just stops NR UE context timers (such as when initiation RRC connections are established Fruit has), and delete NR UE context.

The scene of example 3 is：Inactive states UE enters eLTE network RAN from the RAN of NR, and network initiates downlink signaling Or downlink business

The network architecture and concrete scene of example 3 are identical as example 1.The UE enters inactive states in NR, gNB and The sides UE all retain a set of NR UE context.GNB can configure the effective time meter of a NR UE context to UE simultaneously When device (timer) once UE enters eLTE then start the timer.If gNB does not configure the timer or the timer It is configured to infinity, then UE preserves always NR UE context.

The UE of inactive states enters eLTE networks from NR networks, after UE enters eLTE networks, into idle states, still Retain the UE context of NR, and starts effective timer (if there is).Before effective timer (if there is) time-out, if UE NR is returned to, then directly restores inactive states, and restore NR UE context, optionally, UE is a RNA more in NR Newly.After timer time-out, UE deletes NR UE context.

During timer (if there is) is run, UE does not initiate any uplink in eLTE networks, then NGC still thinks UE is in NR networks, at this time if there is downlink business or signaling reach gNB in NR networks, then can trigger gNB and carry out the sides RAN Paging, when gNB can not be paged within the scope of RAN to UE, gNB is notified that (optional, gNB deletes NR UE to NGC Context), core net paging (within the scope of TA page) is carried out by NGC, follow-up UE is responded from eLTE and paged, and initiates uplink mistake The mode in example 1 or example 2 may be used in journey, uplink process.

The scene of example 4 is：Inactive states UE enters eLTE networks from NR, does not have uplink and downlink business/signaling.

The network architecture and concrete scene of example 4 are identical as example 1.The UE enters inactive states in NR, gNB and The sides UE all retain a set of NR UE context.GNB can configure the effective time meter of a NR UE context to UE simultaneously When device (timer) once UE enters eLTE then start the timer.If gNB does not configure the timer or the timer It is configured to infinity, then UE preserves always NR UE context.

The UE of inactive states enters eLTE networks from NR networks, after UE enters eLTE networks, into idle states, still Retain the UE context of NR, and starts effective timer (if there is).During effective timer (if there is) is run, UE exists ELTE networks never have uplink and downlink business/signaling and initiate, and follow-up UE is returned to NR networks, is then directly entered inactive shapes State, and restore NR UE context, stop timer.Optionally, UE does a RNA update in NR.

If UE is in eLTE networks, timer operation time-out, then UE deletes NR UE context.

The scene of example 5 is：Inactive states UE enters LTE network from NR

Example 5 as shown in Fig. 3 in background technology, concrete scene is as shown in figure 20.The UE enters inactive in NR State, the sides gNB and UE all retain a set of NR UE context.GNB can be to one NR UE context's of UE configurations simultaneously Effective time timer (timer) then starts the timer once UE enters LTE.If gNB do not configure the timer or The timer is configured to infinity, then UE preserves always NR UE context.

The UE of inactive states enters LTE network from NR networks.After UE enters LTE network, into idle states, still protect The UE context of NR are stayed, and start effective timer (if there is).Follow-up UE initiates RRC connections and establishes, and UE marks current UE Know (such as S-TMSI), either with the associated inactive UE ID of NR UE context or in store NR UE context GNB identification notifications to network, while UE stops NR UE context timer (if there is), and deletes NR UE context.The information that UE is entered LTE network by the EPC of LTE notifies NGC, NGC to be based on UE marks or inactive UE The gNB of ID or in store NR UE context identify the gNB for finding in store NR UE context, and the gNB is notified to discharge NR UE context, and discharge connections (including NG2 and NG3 interface) of the UE in NR networks.

To sum up, motion management method provided in an embodiment of the present invention, core net and base station, wherein inactive states UE still retains NR UE context after NR networks enter eLTE/LTE networks, until meeting certain conditions, just deletes NR UE context, actual conditions may include that UE initiates RRC connections foundation in eLTE/LTE networks, receive paging or NR The effective timer expireds of UE context.By handling above, the embodiment of the present invention is realized to the UE's of inactive states Inter-RAT mobile management can solve the mobility problem between different system, terminal is allow to work normally.

The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims

1. the motion management method between a kind of Radio Access Network, the Radio Access Network includes the first Radio Access Network RAN and the 2nd RAN, wherein the first RAN is the RAN of NR systems of newly eating dishes without rice or wine, which is characterized in that the method includes：

Oneself state is switched to Idle state by the terminal from the inactive state, and continues locally retaining the terminal in NR User context information when inactive state is in system.

2. the method as described in claim 1, which is characterized in that switch oneself state from the inactive state in the terminal For Idle state the step of after, the method further includes：

If the terminal detects that this terminal accesses back the first RAN again, oneself state is switched back into inactive state, and restore The terminal is in user context information when inactive state in NR systems.

3. the method as described in claim 1, which is characterized in that the 2nd RAN is the RAN of eLTE systems, in the terminal After the step of oneself state is switched to Idle state from the inactive state, if the terminal initiates uplink in the 2nd RAN Signaling procedure, then the method further include：

It is established in RRC connection procedures in uplink signaling procedure triggering, the terminal will preserve the terminal in NR systems In the prompt message of first base station of user context information when being in inactive state be sent to network side, the prompt message For the terminal present terminal mark or with the associated inactive state terminal iidentification of the user context information or first The mark of base station；

It establishes in RRC connection procedures in uplink signaling procedure triggering, or is received after the uplink signaling procedure After the paging message sent to network side, the terminal that the terminal deletion locally retains is in inactive state in NR systems When user context information.

4. the method as described in claim 1, which is characterized in that the 2nd RAN is the RAN of eLTE systems, in the terminal After the step of oneself state is switched to Idle state from the inactive state, if the terminal initiates uplink in the 2nd RAN Business procedure, then the method further include：

It is established in RRC connection procedures in uplink service process triggering, the terminal will preserve the terminal in NR systems In the prompt message of first base station of user context information when being in inactive state be sent to network side, the prompt message For the terminal present terminal mark or with the associated inactive state terminal iidentification of the user context information or first The mark of base station；

It is established in RRC connection procedures in uplink service process triggering, the terminal that the terminal deletion locally retains exists User context information when inactive state is in NR systems.

5. the method as described in claim 1, which is characterized in that the 2nd RAN is the RAN of LTE system, is incited somebody to action in the terminal After the step of oneself state is switched to Idle state from the inactive state, the method further includes：

If the terminal initiates RRC connections and establishes process, the terminal that the terminal deletion locally retains is in NR systems User context information when in inactive state, and, will preserve the terminal in NR systems be in inactive state when The prompt message of first base station of user context information be sent to network side, the prompt message is the current of the terminal Terminal iidentification or with the associated inactive state terminal iidentification of the user context information or the mark of first base station.

6. the method as described in claim 1, which is characterized in that switch oneself state from the inactive state in the terminal For Idle state the step of after, the method further includes：

The terminal starts one by the preconfigured timer of NR systems；

Before the timer expired, if the terminal detects that this terminal accesses back the first RAN again, stop the timing Oneself state is switched back into inactive state by device, and restore the terminal in NR systems be in inactive state when user above and below Literary information；

After the timer expired, when the terminal that the terminal deletion locally retains is in inactive state in NR systems User context information.

7. method as claimed in claim 6, which is characterized in that the 2nd RAN is the RAN of eLTE systems, in the terminal After the step of oneself state is switched to Idle state from the inactive state, if before the timer expired, the terminal Uplink signaling procedure is initiated in the 2nd RAN, then the method further includes：

8. method as claimed in claim 6, which is characterized in that the 2nd RAN is the RAN of eLTE systems, in the terminal After the step of oneself state is switched to Idle state from the inactive state, if before the timer expired, the terminal Uplink service process is initiated in the 2nd RAN, then the method further includes：

9. method as claimed in claim 6, which is characterized in that the 2nd RAN is the RAN of LTE system, is incited somebody to action in the terminal After the step of oneself state is switched to Idle state from the inactive state, the method further includes：

If before the timer expired, the terminal initiates RRC connections and establishes process, then the terminal deletion locally retains The terminal is in user context information when inactive state in NR systems, and, the terminal will be preserved in NR systems The prompt message of the first base station of user context information when being in inactive state in system is sent to network side, the prompt letter Breath be the terminal present terminal mark or with the associated inactive state terminal iidentification of the user context information or the The mark of one base station.

10. method as claimed in claim 2, which is characterized in that in described the step of oneself state is switched back into inactive state Later, the method further includes：

11. the motion management method between a kind of Radio Access Network, the Radio Access Network includes the first wireless access network Network RAN and the 2nd RAN, wherein the first RAN is the RAN of NR systems of newly eating dishes without rice or wine, and the 2nd RAN is the RAN of eLTE systems, It is characterized in that, the method includes：

The first base station that first core net of the NR systems receives in the first RAN can not in the band of position RNA of RAN ranks The paging failure message sent when the first terminal in inactive state is paged, the first base station is to preserve described first The base station of user context information of the terminal in the NR systems；

12. method as claimed in claim 11, which is characterized in that

Connect if the first core net of the NR systems receives the RRC that the second terminal in the 2nd RAN is triggered in uplink signaling procedure The prompt message established and sent in the process is connect, the prompt message is used to prompt the second base station in the first RAN, described Second base station is the base station for preserving user context information of the second terminal in the NR systems；Then the method is also Including：

First core net continues the control plane interface NG2 for keeping the second terminal in NR systems according to the prompt message Connection is connected with interface in the user plane GN3, and, one is sent for notifying second base station to continue described in holding to the second base station The notification message of the connection of second terminal.

13. method as claimed in claim 12, which is characterized in that after the uplink signaling procedure of the second terminal, The method further includes：

14. method as claimed in claim 13, which is characterized in that discharging between the second terminal and the eLTE systems Connection the step of after, the method further includes：

First core net is directly sought in the 2nd RAN of eLTE systems when the downlink business of the second terminal reaches Exhale, and after the page-response message for receiving the second terminal, by the second terminal in NR systems NG2 connections and GN3 connections are transferred to the respective base station in the 2nd RAN from first base station, and, it is described for notifying to send one to the second base station Second base station discharges the connection of the second terminal and deletes when the second terminal is in inactive state in NR systems The notification message of user context information.

15. method as claimed in claim 11, which is characterized in that

If the first core net of the NR systems receives the third terminal in the 2nd RAN and is sent during RRC connections are established A prompt message, it is to preserve that the prompt message, which is used to prompt third base station in the first RAN, the third base station, The base station of user context information of the third terminal in the NR systems, then the method further include：

First core net according to the prompt message, by control plane interface NG2 connection of the third terminal in NR systems and Interface in the user plane GN3 connections, the respective base station being transferred in the 2nd RAN, and, it is described for notifying to send one to third base station Third base station discharges the connection of the third terminal and deletes when the third terminal is in inactive state in NR systems The notification message of user context information.

16. method as claimed in claim 15, which is characterized in that it is that third terminal is being initiated that process is established in the RRC connections It is triggered when uplink signaling procedure, or triggered when initiating uplink service process.

17. the motion management method between a kind of Radio Access Network, the Radio Access Network includes the first wireless access network Network RAN and the 2nd RAN, wherein the first RAN is the RAN of NR systems of newly eating dishes without rice or wine, and the 2nd RAN is the RAN of LTE system, special Sign is, the method includes：

First core net of the NR systems receives the terminal in the 2nd RAN and establishes the prompt sent in the process in RRC connections Information, it is to preserve the terminal that the prompt message, which is used to prompt the first base station in the first RAN, the first base station, The base station of user context information in the NR systems；

First core net sends one for notifying the first base station to discharge the end according to the prompt message, to first base station The connection at end and the notification message for deleting the user context information when terminal is in inactive state in NR systems.

18. method as claimed in claim 17, which is characterized in that first core net further by with the LTE systems Interface between the EPC of system receives the prompting message of the EPC forwardings.

19. the motion management method between a kind of Radio Access Network, the Radio Access Network includes the first wireless access network Network RAN and the 2nd RAN, wherein the first RAN is the RAN of NR systems of newly eating dishes without rice or wine, and the 2nd RAN is the RAN of eLTE systems, It is characterized in that, the method includes：

First base station in first RAN is initiated in the band of position RNA of RAN ranks to the first terminal in inactive state Paging, the first base station preserve the first terminal in the NR systems be in inactive state when user's context Information；

If the first RAN can not page the first terminal in the RNA, sent to the first core net of the NR systems One indicates the paging failure message sent when can not page first terminal in RNA.

20. method as claimed in claim 19, which is characterized in that

It is used to notify the first base station to continue to keep second terminal if first base station receives the one of the transmission of the first core net The notification message of connection, then the method includes：

First base station starts a timer, and before the timer expired according to the notification message, and holding described second is eventually The connection in NR systems is held, the user context information when second terminal is in inactive state in NR systems is retained, And after the timer expired, discharges the connection of the second terminal and delete the second terminal in NR systems User context information when in inactive state.

21. method as claimed in claim 20, which is characterized in that

If first base station receives the one of the transmission of the first core net and is used to that the first base station to be notified to discharge the second terminal Connect and delete the second terminal in NR systems be in inactive state when user context information notification message, then The method includes：

First base station discharges the connection of the second terminal and deletes the second terminal in NR systems according to the notification message User context information when inactive state is in system.

22. the motion management method between a kind of Radio Access Network, the Radio Access Network includes the first wireless access network Network RAN and the 2nd RAN, wherein the first RAN is the RAN of NR systems of newly eating dishes without rice or wine, and the 2nd RAN is the RAN of LTE system, special Sign is, the method includes：

The first base station of the NR systems, receive the first core net transmission of the NR systems one are used to notify first base It stands and discharges the connection of terminal and delete leading to for the user context information when terminal is in inactive state in NR systems Know message；

According to the notification message, the connection and the deletion terminal that discharge the terminal are in first base station in NR systems User context information when inactive state.

23. a kind of terminal, which is characterized in that the terminal includes：

First detection unit, for when this terminal is in inactive state, detecting that this terminal accesses to second from the first RAN RAN, wherein the first RAN is the RAN of NR systems of newly eating dishes without rice or wine；

Oneself state is switched to Idle state from the inactive state for the terminal, and continued at this by the first switch unit Ground retains the user context information when terminal is in inactive state in NR systems.

24. terminal as claimed in claim 23, which is characterized in that further include：

Second switch unit, for when second detection unit detects that this terminal accesses back a RAN again, by oneself state Inactive state is switched back into, and restores the user context information when terminal is in inactive state in NR systems.

25. terminal as claimed in claim 23, which is characterized in that the 2nd RAN is the RAN of eLTE systems, the terminal Further include：

First signaling initiate unit, for by the SOT state of termination after the inactive state is switched to Idle state, if second Uplink signaling procedure is initiated in RAN, and is established in RRC connection procedures in uplink signaling procedure triggering, and the terminal will protect The prompt message for having the first base station of the user context information when terminal is in inactive state in NR systems is sent To network side, the prompt message is the present terminal mark or associated non-with the user context information of the terminal The mark of activated state terminal iidentification or first base station；And established in RRC connection procedures in uplink signaling procedure triggering, Or after receiving the paging message of network side transmission after the uplink signaling procedure, the terminal deletion locally retains The terminal in NR systems be in inactive state when user context information.

26. terminal as claimed in claim 23, which is characterized in that the 2nd RAN is the RAN of eLTE systems, the terminal Further include：

First business initiate unit, for by the SOT state of termination after the inactive state is switched to Idle state, if second Uplink service process is initiated in RAN, and is established in RRC connection procedures in uplink service process triggering, and the terminal will protect The prompt message for having the first base station of the user context information when terminal is in inactive state in NR systems is sent To network side, the prompt message is the present terminal mark or associated non-with the user context information of the terminal The mark of activated state terminal iidentification or first base station；And established in RRC connection procedures in uplink service process triggering, The terminal that the terminal deletion locally retains is in user context information when inactive state in NR systems.

27. terminal as claimed in claim 23, which is characterized in that the 2nd RAN is the RAN of LTE system, and the terminal is also Including：

First connection establishment unit, for by the SOT state of termination after the inactive state is switched to Idle state, if initiate RRC Process is established in connection, then deletes the user's context letter when terminal locally retained is in inactive state in NR systems Breath, and, the first base station of user context information when will preserve the terminal in the NR systems and be in inactive state Prompt message is sent to network side, the prompt message be the terminal present terminal mark or with the user's context The inactive state terminal iidentification of information association or the mark of first base station.

28. terminal as claimed in claim 23, which is characterized in that the terminal further includes：

Timing processing unit, for the SOT state of termination after the inactive state is switched to Idle state, to be started one by NR systems It unites preconfigured timer；And before the timer expired, if the terminal detects that this terminal accesses back again One RAN then stops the timer, and oneself state is switched back into inactive state, and restores the terminal and be in NR systems User context information when inactive state；After the timer expired, the terminal locally retained is deleted in NR systems In be in inactive state when user context information.

29. terminal as claimed in claim 28, which is characterized in that the 2nd RAN is the RAN of eLTE systems, the terminal Further include：

Second signaling initiates unit, for after the step of SOT state of termination is switched to Idle state from the inactive state, if Before the timer expired, uplink signaling procedure is initiated in the 2nd RAN, then triggers and establish in the uplink signaling procedure In RRC connection procedures, by preserve the terminal in NR systems be in inactive state when user context information first The prompt message of base station is sent to network side, the prompt message be the terminal present terminal mark or with the user The mark of the associated inactive state terminal iidentification of contextual information or first base station；And it is triggered in the uplink signaling procedure It establishes in RRC connection procedures, or after receiving after the uplink signaling procedure paging message of network side transmission, deletes User context information when inactive state is in NR systems except the terminal locally retained.

30. terminal as claimed in claim 28, which is characterized in that the 2nd RAN is the RAN of eLTE systems, the terminal Further include：

Second business initiate unit, for by the SOT state of termination after the inactive state is switched to Idle state, if described Before timer expired, uplink service process is initiated in the 2nd RAN, then establishes RRC connections in uplink service process triggering In the process, the first base station of user context information when will preserve the terminal in the NR systems and be in inactive state carries Show that information is sent to network side, the prompt message is the present terminal mark of the terminal or believes with the user's context Cease the mark of associated inactive state terminal iidentification or first base station；And establish RRC in uplink service process triggering In connection procedure, the user context information when terminal locally retained is in inactive state in NR systems is deleted.

31. terminal as claimed in claim 28, which is characterized in that the 2nd RAN is the RAN of LTE system, and the terminal is also Including：

Second connection establishment unit, for by the SOT state of termination after the inactive state is switched to Idle state, if described It before timer expired, initiates RRC connections and establishes process, then delete the terminal locally retained in NR systems in inactive User context information when state, and, by preserve the terminal in NR systems be in inactive state when user above and below The prompt message of the first base station of literary information is sent to network side, the prompt message be the terminal present terminal mark, Or with the associated inactive state terminal iidentification of the user context information or the mark of first base station.

32. terminal as claimed in claim 24, which is characterized in that the terminal further includes：

Updating unit, the band of position RNA updates for after the SOT state of termination is switched back into inactive state, initiating RAN ranks Process carries out RNA updates.

33. a kind of first core net of new NR systems of eating dishes without rice or wine, which is characterized in that including：

First receiving unit can not be paged for receiving the first base station in the first RAN in the band of position RNA of RAN ranks The paging failure message sent when to first terminal in inactive state, the first base station are to preserve the first terminal The base station of user context information in the NR systems, the first RAN are the RAN of NR systems of newly eating dishes without rice or wine；

34. the first core net as claimed in claim 33, which is characterized in that further include：

Second receiving unit was established for receiving the RRC connections that the second terminal in the 2nd RAN is triggered in uplink signaling procedure The prompt message sent in journey, the prompt message are used to prompt the second base station in the first RAN, second base station To preserve the base station of user context information of the second terminal in the NR systems, the 2nd RAN is eLTE systems The RAN of system；

First processing units, for according to the prompt message, continuing to keep control plane of the second terminal in NR systems Interface NG2 connections are connected with interface in the user plane GN3, and, one is sent for notifying second base station to continue to the second base station Keep the notification message of the connection of the second terminal.

35. the first core net as claimed in claim 34, which is characterized in that further include：

Connection Release unit, for after the uplink signaling procedure of the second terminal, discharging the second terminal and institute State the connection between eLTE systems.

36. the first core net as claimed in claim 35, which is characterized in that further include：

First paging unit, for discharging the company between the second terminal and the eLTE systems in the Connection Release unit After connecing, if the downlink business of the second terminal reaches, directly paged in the 2nd RAN of eLTE systems, and After the page-response message for receiving the second terminal, by the second terminal, NG2 connections are connected with GN3 in NR systems, It is transferred to the respective base station in the 2nd RAN from first base station, and, one is sent for notifying second base station to the second base station It discharges the connection of the second terminal and deletes the user when second terminal is in inactive state in NR systems or more The notification message of literary information.

37. the first core net as claimed in claim 33, which is characterized in that further include：

Third receiving unit establishes send in the process one prompt letter for receiving the third terminal in the 2nd RAN in RRC connections Breath, it is to preserve the third end that the prompt message, which is used to prompt the third base station in the first RAN, the third base station, The base station of the user context information in the NR systems is held, then first core net further includes：

Second processing unit is used for according to the prompt message, by control plane interface NG2 of the third terminal in NR systems Connection is connected with interface in the user plane GN3, the respective base station being transferred in the 2nd RAN, and, one is sent for leading to third base station Know that the third base station discharges the connection of the third terminal and deletes the third terminal in NR systems in inactive The notification message of user context information when state.

38. the first core net as claimed in claim 37, which is characterized in that it is third terminal that process is established in the RRC connections It is triggered when initiating uplink signaling procedure, or triggered when initiating uplink service process.

39. a kind of first core net of new NR systems of eating dishes without rice or wine, which is characterized in that including：

First receiving unit establishes the prompt message sent in the process for receiving the terminal in the 2nd RAN in RRC connections, It is to preserve the terminal in the NR that the prompt message, which is used to prompt the first base station in the first RAN, the first base station, The base station of user context information in system, the first RAN are the RAN of NR systems, and the 2nd RAN is LTE system RAN；

First transmission unit, for first base station send one for notify the first base station discharge the connection of the terminal with And delete the notification message of the user context information when terminal is in inactive state in NR systems.

40. the first core net as claimed in claim 39, which is characterized in that first receiving unit, further by with Interface between the EPC of the LTE system receives the prompting message of the EPC forwardings.

41. a kind of first base station of the Radio Access Network of new NR systems of eating dishes without rice or wine, which is characterized in that including：

Paging unit, for being initiated to first in inactive state in the band of position RNA of the RAN ranks in the first RAN The paging of terminal, the first base station preserve the first terminal in the NR systems be in inactive state when user on Context information, the first RAN are the RAN of NR systems of newly eating dishes without rice or wine；

First transmission unit, if the first terminal can not be paged in the RNA for the first RAN, to the NR systems First core net of system sends one and indicates the paging failure message sent when can not page first terminal in RNA.

42. first base station as claimed in claim 41, which is characterized in that further include：

First receiving unit is used to notify the first base station to continue holding second eventually for receiving the one of the transmission of the first core net The notification message of the connection at end；

First processing units are kept for according to the notification message, starting a timer, and before the timer expired Connection of the second terminal in NR systems, retain the second terminal in NR systems be in inactive state when user on Context information, and, after the timer expired, the connection and the deletion second terminal that discharge the second terminal exist User context information when inactive state is in NR systems.

43. first base station as claimed in claim 42, which is characterized in that further include：

Second receiving unit is used to notify the first base station release described second eventually for receiving the one of the transmission of the first core net The connection at end and the notice for deleting the user context information when second terminal is in inactive state in NR systems disappear Breath；

Second processing unit, for according to the notification message, discharging connection and the deletion described second of the second terminal Terminal is in user context information when inactive state in NR systems.

44. a kind of first base station of the Radio Access Network of new NR systems of eating dishes without rice or wine, which is characterized in that including：

Receiving unit is used to notify the first base station release eventually for receiving the one of the transmission of the first core net of the NR systems The connection at end and the notification message for deleting the user context information when terminal is in inactive state in NR systems；

Releasing unit, for according to the notification message, discharging the connection of the terminal and deleting the terminal in NR systems In be in inactive state when user context information.