CN104378841A - Connection mobility management method and node device - Google Patents

Abstract

The invention discloses a connection mobility management method and a node device and relates to the field of mobile communication. The connection mobility management method comprises the steps that when user equipment (UE) establishes connection with one or more connection nodes and a resource connection node determines that part of or all connection between the UE and the resource connection node needs to be managed, and the resource connection node initiates management operation to the UE, wherein the management operation is that part of or all the connection is deleted or moved, and the resource connection node initiates the management operation to the UE through a main connection node or directly initiates the management operation to the UE. The invention further discloses the node device. By the adoption of the connection mobility management method and the node device, management of connection between the UE and the resource connection node under the double-connection framework is achieved.

Description

A kind of connection motion management method and node device

Technical field

The present invention relates to moving communicating field, particularly relate to a kind of connection motion management method and node device.

Background technology

Be developed so far from the first generation mobile communication system eighties in 20th century, mobile communication technology has stepped into the 4G epoch, the mobile communication demand of user also experienced by from single speech business, to voice and basic data business, to the process of data service explosive growth, mobile communication has risen to the current mobile Internet epoch gradually.The mobile Internet epoch, new Mobile solution demand, especially there is the growth of explosion type in the Mobile solution demand of those high-quality, two-forty, low delay, according to International Telecommunications Union (International Telecommunications Union, ITU) prediction, between 2010 to 2015, mobile communication business is relative to before this by the growth of appearance 15 ~ 30 times, to the year two thousand twenty, likely there is the growth more than 500 times in mobile communication business especially.

The higher expectation that the explosive growth of mobile communication business and user experience mobile communication, such as higher throughput, lower delay, faster speed, more cheap expense, all order about existing mobile communication technology and mobile communications network to advance further upgrading, comprise dilatation network capabilities, strengthen the network coverage, strengthen the cooperation between heterogeneous networks different districts, improve the flexibility of network design, reduce the expense etc. of network design.

Can find the statistics of telex network behavior and custom, indoor environment and hot zones is appeared in the Communication Set of the high data traffic of major part, such as market, school, user's family, large-scale performance, marketplace etc., consider that indoor environment and hot zones area distribution are wide and fall apart, the feature such as single regional extent is little, user is concentrated, a kind of low power nodes (Lower Power Node, LPN) is arisen at the historic moment.In concept, LPN refers to that transmitting power is than the grand node (Macro Node) in traditional grand network or base station (BaseStation, BS) wireless access network node that transmitting power is low, LPN can be micro-base station (PicoNode), and Home eNodeB (Femto/Home (e) NB) and other any transmitting powers that may occur are lower than the cellular node of traditional macro node or BS.The deployment of LPN, can effective dilatation network capabilities, and strengthen the network coverage, the final throughput improving terminal use, improves the communication experiences of terminal use.In addition because LPN transmitting power is low, LPN can accomplish plug and play, therefore the LPN of deployment as required that Virtual network operator can be flexible, Virtual network operator even can disposing the authority opening of LPN to the user such as enterprise, school even personal user, thus improve the flexibility of network design, simultaneously reduce network design and operation and maintenance expenses use.

For realizing network dilatation network capabilities, strengthening the network coverage, improving the flexibility of network design, reduce the expense of network design, user is improved to the target of the communication experiences of user, comprise and improve subscriber terminal equipment (User Equipment, UE) throughput, improve the travelling performance etc. of subscriber terminal equipment, LPN is expected to be disposed in a large number, such as 4G LTE (Long Term Evolution, Long Term Evolution) system, at 3gpp(the3rd Generation Partner Project, third generation partner program) version 12(Release12) and R12+ after, the grand network foundation of tradition is expected to dispose a large amount of LPN, both comprise indoor environment and also comprise outdoor environment.

Improve the communication experiences of user, especially for the throughput and the travelling performance that improve subscriber equipment, a lot of operator and equipment commercial city are tended to seek a kind of new technical scheme at present, and dual link/multi-link (being referred to as dual link below) is exactly one of them.Dual link refers to that subscriber equipment can use the resource of at least two different access network elements (access network node) simultaneously, these at least two different access network nodes and the function played in dual link thereof can not rely on the functional character of access network node, such as these at least two different access network nodes can be traditional grand node or be low power nodes, also can be one for grand node one be low power nodes.Consider that low power nodes morely may be deployed in the hot zones of grand coverage and the feature in in-door covering region, the dual link scheme of the resource of grand node and low power nodes that simultaneously uses subscriber equipment can improve telex network energetically and experience, and meets new mobile demand.But the appearance of dual link scheme, make subscriber equipment from the resource expansion of an access network elements can only be used to the resource that can use two even multiple access network elements, subscriber equipment expands to can be connected to two even multiple access network elements from being connected to an access network elements at present in other words, new challenge will certainly be proposed to connection mobile management, need to seek new connection mobility management scheme.

Summary of the invention

Technical problem to be solved by this invention is, provides a kind of and connects motion management method and node device, to adapt to the connection management demand under dual link/multi-link scene.

In order to solve the problems of the technologies described above, the invention discloses a kind of connection motion management method, the method comprises:

When subscriber equipment (UE) and one or more connected node set up be connected time, wherein have resource connected node determine to need to part or all of between UE with this resource connected node be connected manage time, described resource connected node initiates bookkeeping to UE, described bookkeeping is the operation of deleting or moving described part or all of connection, wherein, described resource connected node initiates bookkeeping by main connected node to described UE, or described resource connected node initiates bookkeeping directly to described UE.

Alternatively, in said method, described resource connected node is determined to need to be connected part or all of between UE with this resource connected node to carry out management and refer to:

Described resource connected node, according to one or more in following information, is determined to need to delete or part or all of between mobile UE with this resource connected node is connected:

The measurement report of user equipment to report, RRM (RRM) algorithm, the information on load of resource connected node, business transmission information.

Alternatively, in said method, the process that described resource connected node initiates bookkeeping by main connected node to described UE is as follows:

Described resource connected node notifies that main connected node needs to carry out bookkeeping to part or all of connection the between UE with this resource connected node;

After described main connected node receives described notice, initiate bookkeeping to described UE.

Alternatively, in said method, described resource connected node notify main connected node need to part or all of between UE with this resource connected node be connected carry out bookkeeping time, the connection carrying out bookkeeping refers to the part or all of RAB (RAB) for user plane data transfer that resource connected node carries.

Alternatively, in said method, after described main connected node receives described notice, the connection carrying out bookkeeping initiated to described UE refers to:

Part or all of user face data radio bearer (DRB) between UE and described resource connected node; Or

Part or all of chain of command Signaling Radio Bearer (SRB) between described part or all of DRB and described UE and described resource connected node.

Alternatively, in said method, when main connected node be each between UE with described resource connected node be connected reserve on the Xn interface of resource connected node and main connected node, carry out the tunnel of uplink and downlink user face GPRS Tunnel Protocol of data forwarding time, described resource connected node initiates bookkeeping directly to described UE.

Alternatively, in said method, when described resource connected node initiates bookkeeping directly to described UE, the connection carrying out bookkeeping refers to:

Part or all of user face data radio bearer (DRB) between described UE and described resource connected node; Or

Part or all of chain of command Signaling Radio Bearer (SRB) between described part or all of DRB and described UE and described resource connected node.

The invention also discloses a kind of node device, comprising:

First module, when this node is resource connected node, determines whether to need to manage part or all of connection the between this resource connected node with subscriber equipment (UE);

Second unit, determine to need to this resource connected node to be connected with part or all of between UE manage time, initiate bookkeeping to UE, described bookkeeping is delete or the operation of mobile described part or all of connection;

Wherein, described second unit initiates bookkeeping by main connected node to described UE, or initiates bookkeeping directly to described UE.

Alternatively, in above-mentioned node device, described first module, according to one or more in following information, is determined to need to delete or part or all of between mobile UE with this resource connected node is connected:

The measurement report of user equipment to report, RRM (RRM) algorithm, the information on load of resource connected node, business transmission information.

Alternatively, above-mentioned node device also comprises:

Unit the 3rd, when this node device is main connected node equipment, needing of receiving that resource connected node sends is connected the notice of carrying out bookkeeping to part or all of between UE with resource connected node, and initiates bookkeeping according to described notice to described UE.

Alternatively, above-mentioned node device also comprises:

Unit the 4th, when this node device is main connected node equipment, for each between UE with described resource connected node is connected the tunnel Xn interface being reserved in resource connected node and main connected node carrying out the uplink and downlink user face GPRS Tunnel Protocol of data forwarding.

Adopt technical scheme, achieve to the connection management between UE and resource connected node under dual link framework, especially achieve and information transmission is provided when resource connected node is no longer suitably for UE or is no longer suitably for connection management when UE provides the information transmission of whole connections of setting up before this.

Accompanying drawing explanation

Fig. 1 is the system architecture diagram of correlation technique Long Time Evolution system;

Fig. 2 is the system architecture diagram after introducing dual link in long evolving system;

Fig. 3 is that the present invention connects motion management method flow chart;

Fig. 4 is the non-limiting schematic diagram of one that connection management method of the present invention is suitable for scene;

Fig. 5 is dual link wave point chain of command configuration diagram of the present invention;

Fig. 6 is the method flow diagram of example one of the present invention;

Fig. 7 is that example one of the present invention initiates connection management flow chart by host node;

Fig. 8 is that example one of the present invention initiates connection management flow chart directly to UE;

Fig. 9 is the method flow diagram of example two of the present invention;

Figure 10 is the connection management flow chart of example two of the present invention.

Embodiment

For making the object, technical solutions and advantages of the present invention clearly understand, hereafter will be described in further detail technical solution of the present invention by reference to the accompanying drawings.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine arbitrarily mutually.

Embodiment 1

Fig. 1 shows the system architecture diagram of correlation technique Long Time Evolution system, LTE system comprises core net (Core Network, CN) mobile management entity (the Mobility Management Entity of network element, and gateway (Serving Gateway MME), SGW), the base station (eNB1 and eNB2) of Access Network (Radio Access Network, RAN) network element, and user equipment (UE).UE is communicated with serving BS eNB1 by air interface (Uu interface), and serving BS eNB1 realizes signalling by chain of command S1 interface protocol S1-MME/S1-C and MME, and realizes user plane data transfer by user face S1 interface protocol S1-U.And serving BS SeNB1 can by the chain of command signaling between the X2 interface protocol realization between base station and adjacent base station SeNB2 and user plane data transfer.As seen from Figure 1, in long evolving system, a user equipment (UE) only realizes being connected with a base station, only uses the resource of this base station; This user equipment (UE) is also only connected with a MME/SGW.

Fig. 2 shows in long evolving system the system architecture diagram after introducing dual link, the single connection system framework of comparison diagram 1, in Fig. 2, UE can be connected with base station eNB 1 and base station eNB 2 with Uu2 by air interface Uu1 simultaneously, namely UE can use the resource of eNB1 and eNB2 simultaneously, realizes the dual link of interface-free resources.And for core network control surface mobile management entity MME, UE is only connected to MME by base station eNB 1, thus avoid because causing after introducing dual link of eating dishes without rice or wine impacting the amendment of core net and signaling.In core network user face, one of the object because of dual link is the throughput improving UE, needs depending on different network architecture design, and UE is by outside the S1-U interface access SGW of eNB1, extra, and UE also can again by the S1-U interface access SGW of eNB2.In addition, eNB1 and eNB2 sets up Xn interface, realizes the chain of command information that realizes alternately or simultaneously of chain of command information and the mutual of user plane information.It should be noted that, in Fig. 2, to realize the classification of two base stations of dual link unrestricted for UE, eNB1 and eNB2 can be grand node, can be also all low power nodes, also can be one for grand node one is for low power nodes, or can be other possible access network nodes; The standard of eNB1 is also unrestricted, can be time division duplex (Time Division Duplexing, TDD) or Frequency Division Duplexing (FDD) (Frequency Division Duplexing, FDD) standard, or one be TDD another be FDD standard.In addition, the dual link of Fig. 2 is an example, and UE can also realize the multi-link scheme with more than 2 eNB.

In Fig. 2, aloft on interface, UE is connected with eNB1 and eNB2 by Uu1 with Uu2 simultaneously, but impacts the amendment of core net and signaling to reduce, and chain of command UE is only connected to MME by eNB1, and the chain of command that namely eNB1 achieves UE and MME accesses anchor point.In the application, the access network elements (base station eNB 1 in such as figure) realizing UE chain of command and be linked into the anchor point function of MME is called main connected node, and other access network elements connected by UE (base station eNB 2 in such as figure) are called resource connected node.At main connected node for UE provides outside information transmission, resource connected node also can provide information transmission for UE, UE and the information transmission between main connected node and resource connected node, depending on the hardware capabilities of UE and the configuring condition of network, can be transmit, also can be cooperative transmission in a time multiplexed manner simultaneously.Access network elements is except the non-limiting base station exemplified above, can also be that corresponding access network resource controls the equipment with management, such as be applied to universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS) can be then the radio network controller (Radio Network Controller, RNC) of response function in.

Dual link framework as shown in Figure 2, UE is from the resource expansion of an access network elements eNB1 can only be used at present to using two the even resource of two or more access network elements (being eNB1 and eNB2 Fig. 2), in other words UE from can only be connected at present an access network elements eNB1 carry out business transmitting extended to can be connected to two even two or more access network elements (Fig. 2 for eNB1 and eNB2) carry out business transmission, and only for the connection management of single connection in current correlation technique, therefore after introducing dual link, certainly will need to solve the connection mobile management after introducing dual link framework.

Based on above-mentioned thought, the present embodiment proposes a kind of connection motion management method, comprises following operation:

When UE and one or more connected node set up be connected time, wherein have resource connected node determine to need to part or all of between UE with this resource connected node be connected manage time, this resource connected node initiates bookkeeping to UE, bookkeeping is the operation of deleting or moving described part or all of connection, wherein, resource connected node passes through main connected node to described UE bookkeeping, or initiates bookkeeping directly to UE.

Can find out, said method is especially no longer suitably for connection management when UE provides information transmission for resource connected node, also namely for the situation needing the connection of deleting between UE and resource connected node, or for needing that the connection between UE and resource connected node is moved to main connected node, after this described connection further can be moved to the situation of other resource connected nodes by main connected node.Connection between above UE and resource connected node, the user face data comprised between UE with resource connected node is connected, or the user face data comprised between UE with resource connected node is connected and chain of command signaling connects.

Suppose that UE sets up with one or more connected node originally to be below connected, composition graphs 3 introduces the detailed process that said method carries out connecting mobile management, comprises the steps 301 to 302:

Step 301. resource connected node judges to need to delete or part or all of between mobile UE with this resource connected node is connected;

In this step, resource connected node can according to the measurement report received, RRM algorithm, the information on load of resource connected node, the one or more factor decision-makings in business transmission situation judge whether to need to delete or part or all of between mobile UE with this resource connected node is connected.

Step 302. resource connected node initiates described deletion or move operation;

The operation of this step is divided into again following two steps:

Step 302-1. resource connected node notifies that main connected node resource connected node needs to delete or mobile described connection;

Wherein, resource connected node notifies that the described connection of described main connected node deletion or movement refers to one or more RAB (Radio Access Bearer of the user plane data transfer for above-mentioned UE that resource connected node carries, referred to as RAB), described RAB namely interface refers to the user face data radio bearer (Data RadioBear, referred to as DRB) between this resource connected node and this UE aloft.

Step 302-2. resource connected node notifies that described UE deletes or mobile (reshuffling) described connection; Or, after main connected node receives the notice of described 302-1, notify that described UE deletes or mobile (reshuffling) described connection.

Described resource connects node or described main connected node notice UE deletes or the operation of mobile described connection, can be by air-interface information, realization is reshuffled to UE by described resource connected node or described main connected node, described connection is deleted in the concrete operations indicating UE to carry out reshuffling in described air-interface information, still delete described connection and newly-built described in be connected between UE and main connected node, namely the latter is equivalent to described connection to move on main connected node.

Wherein, resource connected node or main connected node notify that the described connection of described UE deletion or movement refers to one or more user face DRB between UE and described resource connected node, or the one or more chain of command Signaling Radio Bearers (Signaling Radio Bear, SRB) between described one or more user face DRB and UE and described resource connected node.

Wherein, when in step 302-2 by resource connected node notify described UE delete or mobile (reshuffling) described connection time, operation 302-1 is can selection operation, concrete, main connected node is linked into the anchor point of MME as UE chain of command, the all information be connected set up between UE with resource connected node can be known, when connecting between this external UE and resource connected node, the uplink and downlink GTP-U(GPRS Tunnelling Protocol for the user plane carrying out data forwarding on the Xn interface of resource connected node and main connected node is reserved if main connected node is each connection, user face GPRS Tunnel Protocol) tunnel, under these conditions, operation 302-1 is can selection operation, otherwise operation 302-1 is essential operation.

By said method, for deletion UE and the some or all of situation about being connected between resource connected node, the some or all of connection that resource connected node and UE stop at described deletion receives and transmission information.Situation about moving on main connected node is connected for by some or all of between UE with resource connected node, move successfully, main connected node and UE continue to receive and transmission information in the described connection moved on main connected node, thus achieve continuing of the deletion of connection or the movement of connection and data.

Introduce the non-limiting schematic diagram of one that the application's connection management method shown in Fig. 4 is suitable for scene below again, UE is in the coverage of community 1 that node 1 disposes and the community 2 that node 2 is disposed at A point, therefore UE establishes with node 1 and node 2 at A point simultaneously and is connected, its interior joint 1 is the main connected node of UE, and node 2 is the resource connected node of UE.The mobile route of UE is as shown in arrow solid line in figure, when UE moves to B point, the signal quality variation of community 2 is no longer suitably for UE provides information transmission, therefore needs the connection of deleting UE and node 2, or needs the connection between UE and node 2 to move to main connected node.

Fig. 5 is in the application, the schematic diagram of dual link wave point chain of command framework.Wherein main connected node and UE all dispose wireless heterogeneous networks (Radio Resource Control, RRC) entity, RRC entity on main connected node and UE realizes RRC functions all in correlation technique LTE system, comprises the transmitting-receiving of system broadcast message and all functions of RRC connection control.Resource connected node is also deployed with RRC entity, except transmitting except RRC information between main connected node and UE, also can transmits RRC information between resource connected node and UE.

Be equipped with accompanying drawing with non-restrictive example of application below, describe the process that said method to carry out connection management in detail.It should be noted that, although the following non-restrictive example of application embodiment of the present invention all with the dual link of UE under LTE system and two node for example, but do not limit the present invention and can be applied to the example that UE is connected with two or more node, do not limit the present invention yet and can be applied to other Radio Network Systems.

The each application example of the application is all applicable to following 3 kinds of scenes:

Scene shown in scene 1, applicable Fig. 4, UE established dual link originally between main connected node and resource connected node, after this UE detects and finds that the signal quality of the community (community 2) that the described resource connected node at UE place covers is deteriorated, no longer be applicable to UE continue on described resource connected node keep connect, need by UE with move on main connected node all connection of resource connected node.

Scene 2, resource connected node are according to the load condition of self, concrete resource connected node can according to hardware load, transport layer load, Radio Resource load, on at least one in the information such as disturbance load or multiple judgement resource connected node, load is too large, need by UE with move on main connected node some or all of connection of resource connected node.

Scene 3, resource connected node are connected the transmission situation of data by each of monitoring UE and resource connected node, judgment part or do not have transfer of data in being all connected to set by algorithm time, then described some or all of connection is deleted by decision-making.

Example one

Fig. 6 is the flow chart of the connection motion management method of example one, and UE originally establishes with one or more connected node and is connected, and connects mobility management process and comprises step 601 to 602:

Step 601. resource connected node judges to need to delete or part or all of between mobile UE with this resource connected node is connected;

Wherein, resource connected node is according to the measurement report received, RRM algorithm, the information on load of resource connected node, the one or more factor decision-makings in business transmission situation judge whether to need to delete or part or all of between mobile UE with this resource connected node is connected.

Step 602. resource connected node initiates described deletion or move operation;

The operation of this step is divided into again following two steps:

Step 602-1. resource connected node notifies that main connected node resource connected node needs to delete or mobile described connection;

Step 602-2. resource connected node notifies that described UE deletes or mobile (reshuffling) described connection;

Wherein, step 602-1 is optional, main connected node is linked into the anchor point of MME as UE chain of command, the all information be connected set up between UE with resource connected node can be known, when connecting between this external UE and resource connected node, the uplink and downlink GTP-U(GPRSTunnelling Protocol for the user plane carrying out data forwarding on the Xn interface of resource connected node and main connected node is reserved if main connected node is each connection, user face GPRS Tunnel Protocol) tunnel, then step 602-1 is optional.

In example one, the decision-making of resource connected node is determined some or all of between UE with described resource connected node to be connected when deleting or move on main connected node, and its connection management flow process as shown in Figure 7, specifically comprises step 701 to 705:

Step 701. subscriber equipment, to resource connected node reporting measurement reports, comprises the measurement result of community 2 in this measurement report.

It should be noted that this implementation step is suitable for above stated scene 1, for scene 2 and scene 3, resource connected node does not need the measurement report of user equipment to report namely can make and some or all of between UE with described resource connected node is connected the decision-making deleting or move to main connected node.

Step 702. resource connected node determines the some or all of connection on resource connected node delete or move on main connected node.

The concrete mode decision scheme of resource connected node is described in detail in above 3 kinds of scenes.

Step 703. resource connected node sends to main connected node and connects reconfiguration request.

Connect in reconfiguration request and comprise that resource connected node determines to delete, or claim the information determining the connection of shifting out from resource connected node.Described deletion/information of connection that shifts out can be the identification information connected, can also comprise further each deletion/whether the connection of shifting out carry out the instruction of data forwarding.

Or, in the present embodiment, the signal quality of community 2 is deteriorated, resource connected node determines all connections of UE on resource connected node to move on main connected node, the information of any connection can not be comprised in described connection reconfiguration request message, define described connection reconfiguration message and itself namely represent that deleting UE is connected with all between resource connected node.

It should be noted that, " connection reconfiguration request " is the example message title of the present embodiment, and concrete message name is not limited to this example, and this explanation is applicable to all message name in all fact Examples of this present invention.

The main connected node of step 704. returns connection to resource connected node and reshuffles response.

Connect reshuffle respond packet containing resource connected node delete/information of all connections that shifts out, the information of described connection can be the identification information connected, can also comprise further each deletion that main connected node provides/the Xn interface being connected to resource connected node and main connected node that shifts out on carry out the uplink and downlink GTP-U(GPRS Tunnelling Protocol for the user plane of data forwarding, user face GPRS Tunnel Protocol) tunnel identification information.

Step 705. resource connected node to main connected node send each deletion/connection of shifting out on the transfer sequence state of transfer of data, such as comprise up PDCP SDU(Packet Data ConvergenceProtocol Service Data Unit, packet data protocol layer service data bag) accepting state instruction, the count number of the up PDCP SDU of first loss, the count number etc. of the descending PDCP SDU of first loss.

It should be noted that, if the situation that the data for deletion connection in this connection have been transmitted, such as scene 3, this step does not need.

This step of step 705-1. is optional, is the situation of affirmation mode (Acknowledge Mode, AM) for the connection of deleting/shifting out, and resource connected node forwarding data gives main connected node.

It should be noted that, if the situation that the data for deletion connection in this connection have been transmitted, such as scene 3, this step does not need.After host node receives described forwarding data, after completing steps 705-x and 706, can select described forwarding data is transmitted in the connection that re-establishes at UE and main connected node.

Step 705-x. resource connected node sends RRC and connects reconfiguration message to UE.RRC connects reconfiguration message and some or all of connection the between UE with resource connected node is deleted or be reconfigured on main connected node.

UE receives described RRC and connects reconfiguration message, the instruction of reconfiguration message is connected according to described RRC, UE indicated by deletion is connected with some or all of between resource connected node, and the some or all of connection that after this UE stops at described deletion receives and transmission information; Or the instruction of reconfiguration message is connected according to described RRC, some or all of connection between indicated UE with resource connected node is reconfigured on main connected node, after this, UE continues to receive and transmission information in the described connection be reconfigured on main connected node.

It should be noted that, on above interface aloft resource connected node notice UE delete or reconfigurable part or the step 705-x all connected and on Xn interface resource connected node to main connected node send transfer sequence state and forwarding data step 705,705-1 can executed in parallel.

User equipment (UE) receives RRC and connects after reconfiguration message, and follow-up can have two kinds of possible operations:

The first operation comprises the steps 706a and 707a.

706a.UE sends RRC to main connected node and connects reconfiguration response message.It is then optional,

707a. main connected node notice resource connected node connects reshuffles successfully, namely connects and deletes or move successfully.

The second operation 2 comprises the steps 706b.

706b.UE sends RRC directly to resource connected node and connects reconfiguration response message.

For above two kinds of operations, if in step 705-x, to delete between UE with resource connected node all is connected for resource connected node notice UE, and comprise all user face datas and connect and be connected with chain of command signaling, then UE takes operation 1, cannot take operation 2.If in step 705-x, at least one chain of command signaling that resource connected node remains between UE with resource connected node is connected, then UE can take the first operation or the second operation.

According to the above operation of this example, for deletion UE and the some or all of situation about being connected between resource connected node, the some or all of connection that resource connected node and UE stop at described deletion receives and transmission information.Situation about moving on main connected node is connected for by some or all of between UE with resource connected node, move successfully, main connected node and UE continue to receive and transmission information in the described connection moved on main connected node, thus achieve continuing of the deletion of connection or the movement of connection and data.

In example one, the decision-making of resource connected node determines some or all of connection the between UE with described resource connected node to delete or move on main connected node, main connected node is linked into the anchor point of MME as UE chain of command, the all information be connected set up between UE with resource connected node can be known, when connecting between this external UE and resource connected node, main connected node all can reserve for each connection the uplink and downlink GTP-U(GPRS Tunnelling Protocol for the user plane carrying out data forwarding on the Xn interface of resource connected node and main connected node, user face GPRS Tunnel Protocol) tunnel.In such cases, connection management flow process as shown in Figure 8, specifically comprises step 801 to 804:

Step 801. subscriber equipment, to resource connected node reporting measurement reports, comprises the measurement result of community 2 in described measurement report.Specifically can see the explanation of above-mentioned steps 701.

Step 802. resource connected node determines the some or all of connection on resource connected node delete or move on main connected node.Specifically can see the explanation of above-mentioned steps 702.

Step 803. resource connected node directly to main connected node send each deletion/connection of shifting out on the transfer sequence state of transfer of data, such as comprise up PDCP SDU(Packet DataConvergence Protocol Service Data Unit, packet data protocol layer service data bag) accepting state instruction, the count number of the up PDCP SDU of first loss, the count number etc. of the descending PDCP SDU of first loss.It should be noted that, if the situation that the data for deletion connection in this connection have been transmitted, this step does not need.

This step of step 803-1. is optional, is the situation of affirmation mode (Acknowledge Mode, AM) for the connection of deleting/shifting out, and resource connected node forwarding data gives main connected node.

Step 803-x. resource connected node sends RRC and connects reconfiguration message to UE.RRC connects reconfiguration message and some or all of connection the between UE with resource connected node is deleted or be reconfigured on main connected node.

It should be noted that, on above interface aloft resource connected node notice UE delete or reconfigurable part or the step 803-x all connected and on Xn interface resource connected node to main connected node send transfer sequence state and forwarding data step 803,803-1 can executed in parallel.

Step 804.UE sends RRC directly to resource connected node and connects reconfiguration response message.

It should be noted that, the explanation of this step specifically can see the explanation of above-mentioned steps 705, also can see the explanation of aforesaid operations one or operation two.

According to above operation, for deletion UE and the some or all of situation about being connected between resource connected node, the some or all of connection that resource connected node and UE stop at described deletion receives and transmission information.Situation about moving on main connected node is connected for by some or all of between UE with resource connected node, move successfully, main connected node and UE continue to receive and transmission information in the described connection moved on main connected node, thus achieve continuing of the deletion of connection or the movement of connection and data.

Can find out, adopt the method for example one, achieve under dual link framework the connection management of UE between resource connected node.

Example two

Fig. 9 is the connection motion management method flow chart of example two, and UE originally establishes with one or more connected node and is connected, and this process comprises step 901 to 902:

Step 901. resource connected node judges to need to delete or part or all of between mobile UE with this resource connected node is connected;

Wherein, resource connected node is according to the measurement report received, RRM algorithm, the information on load of resource connected node, the one or more factor decision-makings in business transmission situation judge whether to need to delete or part or all of between mobile UE with this resource connected node is connected.

Step 902. resource connected node initiates described deletion or move operation;

The operation of this step is divided into again following two steps:

Step 902-1. resource connected node notifies that main connected node resource connected node needs to delete or mobile described connection;

After the main connected node of step 902-2. receives described notice, main connected node notifies that described UE deletes or mobile (reshuffling) described connection.

In example two, the decision-making of resource connected node is determined some or all of between UE with described resource connected node to be connected when deleting or move on main connected node, and the process of connection management specifically comprises the steps 1001 to 1007:

Step 1001. subscriber equipment, to resource connected node reporting measurement reports, comprises the measurement result of community 2 in described measurement report.Specifically can see the explanation of above-mentioned steps 701.

Step 1002. resource connected node determines the some or all of connection on resource connected node delete or move on main connected node.

The concrete mode decision scheme of resource connected node is described in detail in above 3 kinds of scenes.

Step 1003. resource connected node sends to main connected node and connects reconfiguration request.The explanation connecting reconfiguration request can see the explanation of above-mentioned steps 703.

The main connected node of step 1004. returns connection to resource connected node and reshuffles response.Connecting the explanation of reshuffling response can see the explanation of above-mentioned steps 704.

The main connected node of step 1004-x. sends RRC and connects reconfiguration message to UE.RRC connects reconfiguration message and some or all of connection the between UE with resource connected node is deleted or be reconfigured on main connected node.

It should be noted that, on above interface aloft main connected node notice UE delete or reconfigurable part or the step 1004-x all connected and on Xn interface main connected node reshuffle the step 1004 of response to resource connected node feedback link can executed in parallel.

Step 1005. resource connected node to main connected node send each deletion/connection of shifting out on the transfer sequence state of transfer of data, such as comprise up PDCP SDU(Packet Data ConvergenceProtocol Service Data Unit, packet data protocol layer service data bag) accepting state instruction, the count number of the up PDCP SDU of first loss, the count number etc. of the descending PDCP SDU of first loss.

This step of step 1005-1. is optional, is the situation of affirmation mode (Acknowledge Mode, AM) for the connection of deleting/shifting out, and resource connected node forwarding data gives main connected node.

It should be noted that, above-mentioned steps 1005 and 1005-1 can executed in parallel.

Step 1006.UE sends RRC to main connected node and connects reconfiguration response message.

Step 1007. main connected node notice resource connected node connects reshuffles successfully, namely connects and deletes or move successfully.

As can be seen from above-mentioned example, for deletion UE and the some or all of situation about being connected between resource connected node, the some or all of connection that resource connected node and UE stop at described deletion receives and transmission information.Situation about moving on main connected node is connected for by some or all of between UE with resource connected node, move successfully, main connected node and UE continue to receive and transmission information in the described connection moved on main connected node, thus achieve continuing of the deletion of connection or the movement of connection and data.

Embodiment 2

The present embodiment provides a kind of node device, can realize the mobility connection management method of above-described embodiment 1, and it at least comprises following two unit.

First module, when this node is resource connected node, determines whether to need to manage with part or all of connection the between UE this resource connected node;

Particularly, first module can according to one or more in following information, determine to need to delete or part or all of between mobile UE with this resource connected node is connected:

The measurement report of user equipment to report, RRM algorithm, the information on load of resource connected node, business transmission information.

Second unit, determine to need to this resource connected node to be connected with part or all of between UE manage time, initiate bookkeeping to UE, described bookkeeping is delete or the operation of mobile described part or all of connection;

Wherein, described second unit initiates bookkeeping by main connected node to described UE, or initiates bookkeeping directly to described UE.

Under different application scenarioss, above-mentioned node device, also may as host node device except as except resource node equipment, and therefore above-mentioned node device also comprises Unit the 3rd.Unit the 3rd, when this node device is main connected node equipment, needing of receiving that resource connected node sends is connected the notice of carrying out bookkeeping to part or all of between UE with resource connected node, and initiates bookkeeping according to notice to UE.

In addition, above-mentioned node device also may comprise Unit the 4th, this unit, when this node device is main connected node equipment, can be connected for each between UE with resource connected node the tunnel Xn interface being reserved in resource connected node and main connected node carrying out the uplink and downlink user face GPRS Tunnel Protocol of data forwarding.Now, for resource node equipment, bookkeeping can be initiated directly to UE.

Above-mentioned node device see the corresponding contents in above-described embodiment 1, can not repeat them here as the concrete operations of resource node equipment.In like manner, above-mentioned node device see the corresponding contents in above-described embodiment 1, can not repeat them here as the concrete operations of host node device yet.In addition, above node device has been specially the access network elements of the above function, and unrestriced can be the base station of above function, the equipment such as radio network controller.

The all or part of step that one of ordinary skill in the art will appreciate that in said method is carried out instruction related hardware by program and is completed, and described program can be stored in computer-readable recording medium, as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can use one or more integrated circuit to realize.Correspondingly, each module/unit in above-described embodiment can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.The application is not restricted to the combination of the hardware and software of any particular form.

The above, be only preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (11)

1. connect a motion management method, it is characterized in that, the method comprises:

When subscriber equipment (UE) and one or more connected node set up be connected time, wherein have resource connected node determine to need to part or all of between UE with this resource connected node be connected manage time, described resource connected node initiates bookkeeping to UE, described bookkeeping is the operation of deleting or moving described part or all of connection, wherein, described resource connected node initiates bookkeeping by main connected node to described UE, or described resource connected node initiates bookkeeping directly to described UE.

2. the method for claim 1, is characterized in that, described resource connected node is determined to need to be connected part or all of between UE with this resource connected node to carry out management and refer to:

Described resource connected node, according to one or more in following information, is determined to need to delete or part or all of between mobile UE with this resource connected node is connected:

The measurement report of user equipment to report, RRM (RRM) algorithm, the information on load of resource connected node, business transmission information.

3. method as claimed in claim 1 or 2, is characterized in that, the process that described resource connected node initiates bookkeeping by main connected node to described UE is as follows:

Described resource connected node notifies that main connected node needs to carry out bookkeeping to part or all of connection the between UE with this resource connected node;

After described main connected node receives described notice, initiate bookkeeping to described UE.

4. method as claimed in claim 3, is characterized in that,

Described resource connected node notify main connected node need to part or all of between UE with this resource connected node be connected carry out bookkeeping time, the connection carrying out bookkeeping refers to the part or all of RAB (RAB) for user plane data transfer that resource connected node carries.

5. method as claimed in claim 3, it is characterized in that, after described main connected node receives described notice, the connection carrying out bookkeeping initiated to described UE refers to:

Part or all of user face data radio bearer (DRB) between UE and described resource connected node; Or

Part or all of chain of command Signaling Radio Bearer (SRB) between described part or all of DRB and described UE and described resource connected node.

6. the method for claim 1, is characterized in that,

When main connected node be each between UE with described resource connected node be connected reserve on the Xn interface of resource connected node and main connected node, carry out the tunnel of uplink and downlink user face GPRS Tunnel Protocol of data forwarding time, described resource connected node initiates bookkeeping directly to described UE.

7. the method as described in claim 1 or 6, is characterized in that, when described resource connected node initiates bookkeeping directly to described UE, the connection carrying out bookkeeping refers to:

Part or all of user face data radio bearer (DRB) between described UE and described resource connected node; Or

Part or all of chain of command Signaling Radio Bearer (SRB) between described part or all of DRB and described UE and described resource connected node.

8. a node device, is characterized in that, comprising:

First module, when this node is resource connected node, determines whether to need to manage part or all of connection the between this resource connected node with subscriber equipment (UE);

Second unit, determine to need to this resource connected node to be connected with part or all of between UE manage time, initiate bookkeeping to UE, described bookkeeping is delete or the operation of mobile described part or all of connection;

Wherein, described second unit initiates bookkeeping by main connected node to described UE, or initiates bookkeeping directly to described UE.

9. node device as claimed in claim 8, is characterized in that, described first module, according to one or more in following information, is determined to need to delete or part or all of between mobile UE with this resource connected node is connected:

The measurement report of user equipment to report, RRM (RRM) algorithm, the information on load of resource connected node, business transmission information.

10. node device as claimed in claim 9, it is characterized in that, described node device also comprises:

Unit the 3rd, when this node device is main connected node equipment, needing of receiving that resource connected node sends is connected the notice of carrying out bookkeeping to part or all of between UE with resource connected node, and initiates bookkeeping according to described notice to described UE.

11. node devices as claimed in claim 8 or 9, it is characterized in that, described node device also comprises:

Unit the 4th, when this node device is main connected node equipment, for each between UE with described resource connected node is connected the tunnel Xn interface being reserved in resource connected node and main connected node carrying out the uplink and downlink user face GPRS Tunnel Protocol of data forwarding.