CN102202358A

CN102202358A - Synchronization method, communication handover method, wireless network and node

Info

Publication number: CN102202358A
Application number: CN2011101671122A
Authority: CN
Inventors: 邱勇
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2007-04-30
Filing date: 2007-04-30
Publication date: 2011-09-28
Anticipated expiration: 2027-04-30
Also published as: CN102202358B

Abstract

The invention discloses a synchronization method, a communication handover method, a wireless network and a network node of a wireless access network. The interface information synchronization method comprises the following steps of: judging whether a condition of updating trigger interface information is satisfied; in the event of satisfying the condition of updating the trigger interface information, sending information of an S1 interface between the network node of the wireless access network and a node of a core network and/or an X2 interface between the network node of the wireless access network and a network node of a neighbour wireless access network to the network node of the neighbour wireless access network; receiving the S1 and/or X2 interface information; and configuring/updating the interface information of the network node of the neighbour wireless access network according to the received S1 and/or X2 interface information. By means of the invention, speed, efficiency and accuracy rate of the communication handover can be improved.

Description

Method for synchronous, communication handover method, wireless network and node

Technical field

The present invention relates to the communications field, particularly relate to interface message method for synchronous, communication handover method, wireless network and wireless access network network node.

Background technology

LTE/SAE (Long Term Evolution/System Architecture Evolution, Long Term Evolution/System Architecture Evolution) network system project, it is the maximum new technology development project of third generation partner program (3GPP, 3rd Generation Partnership Project) startup in recent years.This with OFDM/frequency division multiple access (OFDM/FDMA) be the technology of core owing to have some " 4G " feature, be counted as " accurate 4G " technology.

Consulting Fig. 1, is the Organization Chart of prior art LTE/SAE network system.Described LTE/SAE network system comprises the wireless access network network node (eNB of evolution, eNodeB) and the management these wireless access network network nodes mobile management entity/System Architecture Evolution gateway (MME/SGW, Mobility Management Entity/Serving System Architecture Evolution Gateway).Being S1 interface (The Interface Between eNB and MME, the interface between eNB and the MME) between MME/SGW and the eNB, is that X2 interface (The Interface Between eNBs, the interface between the eNB) connects between the eNB.

Among the present LTE, the communication handoff procedure is divided into two big classes.One class is that source eNB switches to target eNB by X2 interface; Another kind is that source eNB switches to target eNB by the S1 interface.As follows:

Switch by X2 interface: source eNB and target eNB are administered by same MME in the handoff procedure, MME does not change, described source eNB directly sends handoff request message to target eNB by X2 interface and switches, and the handoff procedure in this time does not relate to MME, is called the switching by X2 interface.When switching, need use the S1 interface by X2 interface.

Switch by the S1 interface: change has taken place in the MME that relates in the handoff procedure, and when promptly source eNB and target eNB were not administered by same MME, source eNB will send handoff request message by the S1 interface, and this switching is called the switching by the S1 interface.

When how an eNodeB selects above-mentioned any changing method, prior art when initiating to switch the method that following eNB selects switching is proposed:

If the A X2 interface does not exist, then switch by the S1 interface;

If B is configured to the switching of the target eNB of adjacency in the eNB of source be to adopt the S1 interface to switch, then adopt the S1 interface to switch;

The method is to keep a static table earlier in the eNB of source, carry out the switching that S1 still is an X2 interface according to the relevant interface connection situation decision in abutting connection with eNB of writing down in the described static table, but prior art does not provide the structure of this static table, does not provide the explanation that how to utilize this static table to communicate switching yet.

If C when carrying out the X2 interface switching, receives the refuse information of target eNB, explanation can't be switched by X2, then uses S1 to switch;

In the method,, just send handover request by described X2 interface earlier as long as connection by X2 interface is arranged.If target eNB is found to carry out the switching of X2 interface, there is not identical MME to connect such as judging, target eNB sends the information of handoff failure for source eNB so, is with corresponding cause value in the switch failure information.Indication source eNB sends handover require message by the S1 interface to MME again.

In carrying out the invention process, the inventor finds to exist at least in the above-mentioned prior art following problem:

1) for option b, because source eNB need know relevant interface static configuration situation in abutting connection with eNB,, need and then to change when the configuration of adjacency eNB has changed, carrying out the static configuration manual modification so all wastes time and energy, and the manual modification data are made mistakes easily; And prior art does not provide the concrete structure of static table, does not specifically provide the explanation that how to utilize this static table to communicate switching yet.

2) for scheme C, owing to can only also must send Handover Request by X2 interface earlier by the switching of S1 interface to those, the waste resource increases time delay again; In addition according to existing X2 interface switching flow, target eNB just can be carried out the foundation of interface-free resources after receiving Handover Request immediately, if but use this scheme C, can target eNB at first need to carry out once using the judgement of X2 interface switching after receiving Handover Request so, and this can also increase unnecessary processing by the flow process that X2 interface switches to those.

Summary of the invention

The technical problem that embodiment of the present invention will solve provides a kind of interface message method for synchronous, communication handover method, wireless network and wireless access network network node, can improve the communication switching efficiency.

For solving the problems of the technologies described above, the purpose of embodiment of the present invention realizes by following first technical scheme:

A kind of interface message method for synchronous is provided, comprises: the condition that judges whether to satisfy the trigger interface information updating; When satisfying the condition of described trigger interface information updating, send between this wireless access network network node and the core net node the S1 interface and/or and adjacency wireless access network network node between X2 interface information to adjacency wireless access network network node; Receive described S1 and/or X2 interface information; According to described S1 that receives and/or X2 interface information, the described interface message of configuration/renewal in abutting connection with the wireless access network network node.

For solving the problems of the technologies described above, the purpose of embodiment of the present invention realizes by following second technical scheme:

A kind of communication handover method is provided, comprises: when switching, the interface switching table of source wireless access network network node reading and saving, described interface switching table record the information that whether can switch to Target Wireless Access Network network node by the S1 interface; Record when switching to the information of described Target Wireless Access Network network node at described interface switching table, switch by the S1 interface by the S1 interface; Otherwise undertaken by X2 interface.

For solving the problems of the technologies described above, the purpose of embodiment of the present invention realizes by following the 3rd technical scheme:

A kind of communication handover method is provided, comprise: when switching, source wireless access network network node fetch interface information, described interface message comprises: whether exist between source wireless access network network node and the Target Wireless Access Network network node X2 interface information and/or: the information that whether has the S1 interface between the service core net node of source wireless access network network node and the described Target Wireless Access Network network node; Comprise in described interface message and to switch by X2 interface when having the information of S1 interface between the service core net node that has X2 interface information, source wireless access network network node between source wireless access network network node and the Target Wireless Access Network network node and the described Target Wireless Access Network network node; Otherwise switch by the S1 interface.

For solving the problems of the technologies described above, the purpose of embodiment of the present invention realizes by following the 4th technical scheme:

A kind of wireless network is provided, at least the service core net node that comprises first, second wireless access network network node and the described second wireless access network network node, the described first wireless access network network node comprises judging unit and transmitting element, and described judging unit is used to judge whether to satisfy the condition of trigger interface information updating; Described transmitting element is used for when satisfying the condition of described trigger interface information updating, send between the described first wireless access network network node and the second wireless access network network node X2 and/or and described core net node between the S1 interface message to the described second wireless access network network node; The described second wireless access network network node comprises receiving element and switches selected cell that described receiving element is used to receive described S1 and/or X2 interface information; Described switching selected cell is used to search described interface message, there is X2 interface information between the described two wireless access network network nodes and when judging described service core net node and exist the S1 interface to be connected finding with the described first wireless access network network node according to described S1 interface message, initiate handover operation by X2 interface to the described first wireless access network network node, otherwise initiate handover operation to the described first wireless access network network node by the S1 interface.

For solving the problems of the technologies described above, the purpose of embodiment of the present invention realizes by following the 5th technical scheme:

A kind of wireless access network network node is provided, comprises judging unit and transmitting element, described judging unit is used to judge whether to satisfy the condition of trigger interface information updating; Described transmitting element is used in the judged result of described judging unit: when satisfying the condition of described trigger interface information updating, send this wireless access network network node and in abutting connection with the X2 between the wireless access network network node and/or the S1 interface message between this wireless access network network node and the core net node to described in abutting connection with the wireless access network network node.

For solving the problems of the technologies described above, the purpose of embodiment of the present invention realizes by following the 6th technical scheme:

A kind of wireless access network network node is provided, comprises receiving element, processing unit and switching selected cell, described receiving element is used to receive S1 and/or the X2 interface information from adjacency wireless access network network node; Described processing unit is used for after described receiving element receives described S1 and/or X2 interface information, the described interface message in abutting connection with the wireless access network network node of configuration/renewal; Described switching selected cell is used for searching the interface message of described processing unit, at this wireless access network network node and described in abutting connection with the service core net node that has X2 interface information and this wireless access network network node between the wireless access network network node and described when between the wireless access network network node, having the S1 interface message, select X2 interface to initiate handover operation in abutting connection with the wireless access network network node, otherwise select the S1 interface to initiate handover operation in abutting connection with the wireless access network network node to described to described.

For solving the problems of the technologies described above, the purpose of embodiment of the present invention realizes by following the 7th technical scheme:

A kind of wireless access network network node is provided, comprises receiving element, interface message generation unit and switch selected cell, described receiving element is used to receive the S1 interface message from adjacency wireless access network network node; The S1 interface message that described interface message generation unit is used for receiving according to the S1 interface message of self and described receiving element, judge described as this wireless access network network node of source node with in abutting connection with between the wireless access network network node whether identical core net node is arranged as destination node, when not having identical core net node, generate the handover information that switches to described Target Wireless Access Network network node by the S1 interface; Described switching selected cell is used for searching the handover information that described interface message generation unit generates when switching, in described information, find when switching to the information of described Target Wireless Access Network network node by the S1 interface, select the S2 interface to initiate handover operation in abutting connection with the wireless access network network node, otherwise select X2 interface to initiate handover operation in abutting connection with the wireless access network network node to described to described.

More than first technical scheme as can be seen, because at the S1 interface that sends under the eligible situation between this wireless access network network node and the core net node, and/or and adjacency wireless access network network node between X2 interface information give in abutting connection with the wireless access network network node, the wireless access network network node that helps described adjacency is when switching to this wireless access network network node, judge between own and the described core net whether have the S1 interface according to S1 interface message of self and the described S1 interface message that receives, just can accurately judge which interface according to the X2 interface information that receives again can switch, can be accurate, choose appropriate interface fast, avoid prior art not know interface case and need when switching, carry out the judgement that once can use X2 interface to switch, improve switching efficiency, reduce system loading.

More than second, three technical schemes as can be seen, because elder generation's fetch interface information or interface switching table when switching, according to the changeable interface that directly switching of the interface of record requires or judgement draws according to interface message in the interface switching table, carry out interface selection and switching, described judgment mode is to comprise between source wireless access network network node and the Target Wireless Access Network network node in described interface message having X2 interface information, when having the information of S1 interface between the service core net node of source wireless access network network node and the described Target Wireless Access Network network node, send handoff request by X2 interface; Otherwise send handoff request by the S1 interface, therefore can choose appropriate interface accurately, fast, avoid prior art not know interface case and need when switching, carry out the judgement that once can use X2 interface to switch, improve switching efficiency, reduce system loading.

More than the 4th technical scheme as can be seen, owing to adopt the judgment unit judges interface message to need to upgrade, and adopt transmitting element to send to and realize the synchronous of interface message in abutting connection with the wireless access network network node, can adopt the switching selected cell according to the directly interface of record switching requirement in this interface switching table in abutting connection with the wireless access network network node, or the changeable interface that judgement draws according to interface message, carry out interface selection and switching, described judgment mode is to comprise between source wireless access network network node and the Target Wireless Access Network network node in described interface message having X2 interface information, when having the information of S1 interface between the service core net node of source wireless access network network node and the described Target Wireless Access Network network node, send handoff request by X2 interface; Otherwise send handoff request by the S1 interface, therefore can choose appropriate interface accurately, fast, avoid prior art not know interface case and need when switching, carry out the judgement that once can use X2 interface to switch, improve switching efficiency, reduce system loading.

More than the 5th, six, seven technical schemes as can be seen, owing to can between adjacency wireless access network network node, carry out the interface message transmission, make the wireless access network network node can know in abutting connection with the interface message of wireless access network network node, and these interface messages are to judge the foundation that adopts which interface to switch, therefore these two technical schemes can realize accurately, efficiently carry out the interface selection together and switch, and reduce system loading.

Description of drawings

Fig. 1 is the structural representation of prior art LTE/SAE network;

Fig. 2 is the flow chart of interface message method for synchronous second execution mode of the present invention;

Fig. 3 is a kind of X2 among Fig. 2, S1 interface link schematic diagram;

Fig. 4 is the flow chart of interface message method for synchronous the 3rd execution mode of the present invention;

Fig. 5 is the flow chart of communication handover method the 3rd execution mode of the present invention;

Fig. 6 realizes synchronous method one sequential chart of interface message of the present invention by X2 handover operation failure response;

Fig. 7 realizes the synchronous method two sequential chart of interface message of the present invention by X2 handover operation failure response;

Fig. 8 realizes the synchronous sequential chart of interface message of the present invention by the message between the webmaster;

Fig. 9 is the theory diagram of wireless network first execution mode of the present invention;

Figure 10 is the theory diagram of wireless access network network node the 3rd execution mode of the present invention.

Embodiment

One aspect of the present invention is storage and in abutting connection with the information of the X2 interface between the wireless access network network node in the wireless access network network node, also stores in abutting connection with the S1 interface message between wireless access network network node and the core net node.Described X2, S1 interface message can be configuring condition and/or state.This configuring condition and/or state constitute an allocation list.Be designated hereinafter simply as S1, the X2 interface allocation list of wireless access network network node.If the configuration of the S1 of wireless access network network node or X2 interface, state change, then the S1 that changes or X2 interface configuration, state information are sent to its adjacent wireless access network network node, tell the other side to revise corresponding S1, X2 interface allocation list.The wireless access network network node all can have up-to-date S1, X2 interface allocation list like this.When switching, source wireless access network network node is at first searched the configuring condition of Target Wireless Access Network network node in this S1, the X2 interface allocation list, exist the S1 interface to connect between the service core net node of discovery Target Wireless Access Network network node and source wireless access network network node, switch by X2 interface with regard to selecting so, otherwise select to switch by the S1 interface.

Another aspect of the present invention is to give in abutting connection with the wireless access network network node by the S1 interface message that X2 interface transmits between wireless access network network node and the core net node.Generate one whether must be in abutting connection with the S1 interface message and the described S1 interface message of receiving of wireless access network network node by the S1 interface switching table of S1 switching according to itself.Described S1 interface switching table is dynamically to preserve, and all tells this wireless access network network node by X2 interface when the S1 interface configuration of wireless access network network node or state change at every turn.This wireless access network network node is revised described S1 interface switching table according to these S1 interface messages.When switching, source wireless access network network node is at first searched this S1 interface switching table, see and have or not Target Wireless Access Network network node, find Target Wireless Access Network network node, source wireless access network network node switches by the S1 interface with regard to selecting, otherwise selects to switch by X2 interface.

Because the LTE network is the network of a self-configuring, self-optimizing, therefore can finish mutual mutually S1 interface message and/or X2 interface information each other in each wireless access network network node automatically by the automatic configuration of network.Here both can exchange each other S1 and X2 interface information, also can only exchange each other S1 interface message and each other X2 interface information of exchange only.

Described wireless access network network node can be eNB, and described core net node can be MME.

The invention provides interface message method for synchronous first execution mode, comprising: the condition that judges whether to satisfy the trigger interface information updating; When satisfying the condition of described trigger interface information updating, send between this wireless access network network node and the core net node the S1 interface and/or and adjacency wireless access network network node between X2 interface information to adjacency wireless access network network node; Receive described S1 and/or X2 interface information; According to described S1 that receives and/or X2 interface information, the described interface message of configuration/renewal in abutting connection with the wireless access network network node.

Above execution mode as can be seen, since under eligible situation, send this wireless access network network node X2 and/the S1 interface message gives in abutting connection with the wireless access network network node, the wireless access network network node that helps described adjacency is when switching to this wireless access network network node, judge between own and the described core net whether have the S1 interface according to S1 interface message of self and the described S1 interface message that receives, just can accurately judge which interface according to the X2 interface information that receives again can switch, can be accurate, choose appropriate interface fast, avoid prior art not know interface case and need when switching, carry out the judgement that once can use X2 interface to switch, improve switching efficiency, reduce system loading.

The invention provides communication handover method first execution mode, comprise: when switching, the interface switching table of source wireless access network network node reading and saving, described interface switching table record the information that whether can switch to Target Wireless Access Network network node by the S1 interface; Record when switching to the information of described Target Wireless Access Network network node at described interface switching table, switch by the S1 interface by the S1 interface; Otherwise undertaken by X2 interface.

The invention provides communication handover method second execution mode, comprise: when switching, source wireless access network network node fetch interface information, described interface message comprises: whether exist between source wireless access network network node and the Target Wireless Access Network network node X2 interface information and/or: the information that whether has the S1 interface between the service core net node of source wireless access network network node and the described Target Wireless Access Network network node; Comprise in described interface message and to switch by X2 interface when having the information of S1 interface between the service core net node that has X2 interface information, source wireless access network network node between source wireless access network network node and the Target Wireless Access Network network node and the described Target Wireless Access Network network node; Otherwise switch by the S1 interface.

Above communication handover method of the present invention first, two execution modes as can be seen, because elder generation's fetch interface information or interface switching table when switching, according to the changeable interface that directly switching of the interface of record requires or judgement draws according to interface message in the interface switching table, carry out interface selection and switching, described judgment mode is to comprise between source wireless access network network node and the Target Wireless Access Network network node in described interface message having X2 interface information, when having the information of S1 interface between the service core net node of source wireless access network network node and the described Target Wireless Access Network network node, send handoff request by X2 interface; Otherwise send handoff request by the S1 interface, therefore can choose appropriate interface accurately, fast, avoid prior art not know interface case and need when switching, carry out the judgement that once can use X2 interface to switch, improve switching efficiency, reduce system loading.

For make purpose of the present invention, technical scheme, and advantage clearer, below with reference to the accompanying drawing execution mode that develops simultaneously, the present invention is described in more detail.

Consult Fig. 2, communication handover method the 3rd execution mode of the present invention may further comprise the steps:

Step 201: when switching, source wireless access network network node reads S1 and X2 interface information, and described interface message comprises: whether exist between source wireless access network network node and the Target Wireless Access Network network node X2 interface information and/or: the information that whether has the S1 interface between the service core net node of source wireless access network network node and the Target Wireless Access Network network node;

As described above, described S1 and X2 interface information exist with S1, X2 interface allocation list form, and are kept on the wireless access network network node of source.Consult Fig. 3, described S1, X2 interface allocation list structure can be as shown in the table:

For example: among Fig. 3, wireless access network network node 1 and wireless access network network node 2,3rd, adjacent, there is X2 interface between them.In wireless access network network node 1, can store such tabulation:

The wireless access network network node	Core net node 1	Core net node 2	Core net node 3
				Wireless access network network node 2	0	1	1
Wireless access network network node 3	0	0	1

Table one: the S1 of wireless access network network node 1, X2 interface allocation list

First row are adjacent wireless access network network node information in the table.First shows wireless access network network node 2, wireless access network network node 3.Illustrate between wireless access network network node 1 and the wireless access network network node 2,3 and have X2 interface.In described row, do not have the title of certain wireless access network network node, then illustrate between wireless access network network node 1 and described certain wireless access network network node not have X2 interface.

The first line display associated core net node in the table, whether the following expression of second row each exist the situation of S1 interface in abutting connection with wireless access network network node and described associated core net node.Use " 1 " expression if certain wireless access network network node and certain associated core net node have the S1 interface, do not have and then use " 0 " expression.All and between the core net node 2,3 there is the S1 interface in wireless access network network node 2 as can be seen, but and does not have the S1 interface between the core net node 1.There is the S1 interface between wireless access network network node 3 and the core net node 3, and all do not have the S1 interface between the core net node 1,2.Know between own and the associated core net node whether exist under the S1 interface case at source wireless access network network node, can infer from second row and following content thereof: the service core net of source wireless access network network node whether and other have the S1 interface in abutting connection with between the wireless access network network node, such as the relevant position in service core net node 2 correspondence table of wireless access network network node 2 and wireless access network network node 1 is " 1 ", and wireless access network network node 1 has been known own and core net node 2 between have the S1 interface, then have the S1 interface between the service core net 2 of wireless access network network node 2 and the wireless access network network node 1.

Obviously, the content of first row is whether source wireless access network network node exists the information of X2 interface with other in abutting connection with the wireless access network network node in the table; Whether the following content of second row is in the table: describedly exist the S1 interface to be connected with core net node in abutting connection with the wireless access network network node.Source wireless access network network node can draw the service core net node of source wireless access network network node and whether have the S1 interface in abutting connection with between the wireless access network network node according to the following S1 interface message of second row in self S1 interface message and the described table.

Equally, other also preserve similar allocation list in abutting connection with the wireless access network network node, are used for communication and switch.

The wireless access network network node	Core net node 1	Core net node 2	Core net node 3
				Wireless access network network node 1	1	1	0

Table two: the S1 of wireless access network network node 2, X2 interface allocation list

Table three: the S1 of wireless access network network node 3, X2 interface allocation list

Source wireless access network network node also can be added the S1 interface message of oneself in the above-mentioned allocation list, is placed on first row.And second row to begin be information in abutting connection with the wireless access network network node.Table four for example:

The wireless access network network node	Core net node 1	Core net node 2	Core net node 3
				Wireless access network network node 1	1	1	0
Wireless access network network node 2	0	1	1
				Wireless access network network node 3	0	0	1

Table four: the S1 of wireless access network network node 1, X2 interface allocation list

Like this, just can directly judge source wireless access network network node and other whether all and have the S1 interface between certain core net node in abutting connection with the wireless access network network node.

When source wireless access network network node will switch, at first reading and saving was at the S1 of this locality for source wireless access network network node, and the X2 interface allocation list enters following step then:

Step 202: comprise in described interface message sending handoff request by X2 interface to Target Wireless Access Network network node when having the information of S1 interface between the service core net node that has X2 interface information, source wireless access network network node between source wireless access network network node and the Target Wireless Access Network network node and the described Target Wireless Access Network network node; Otherwise send handoff request to Target Wireless Access Network network node by the S1 interface.

Detailed process is as follows:

If A does not find Target Wireless Access Network network node in first row of allocation list, illustrating between described source wireless access network network node and the Target Wireless Access Network network node does not have X2 interface, directly sends the handoff request Handover Require of S1 interface.If find Target Wireless Access Network network node, illustrate that described source wireless access network network node and target have X2 interface between the wireless access network network node, change following step C;

C, second row of allocation list and below search this delegation of Target Wireless Access Network network node, look for these row of core net node of source wireless access network network node service again, see the value in this row and column crosspoint; Do not have the S1 interface to connect if value for " 0 ", then illustrates between the service core net node of source wireless access network network node and the Target Wireless Access Network network node, source wireless access network network node directly sends the Handover Require of S1 interface.If for " 1 ", illustrate between the service core net node of source wireless access network network node and the Target Wireless Access Network network node, value has the S1 interface, the commentaries on classics step e;

E, send Handover Request for Target Wireless Access Network network node by X2 interface.

From as can be seen above, because the wireless access network network node judges between own and the described core net whether have the S1 interface according to S1 information of self and the described S1 interface message that receives in wireless network, just can choose appropriate interface accurately, fast according to the X2 interface information that receives again, avoid prior art after receiving Handover Request, at first to need to carry out once can using the judgement of X2 interface switching, improve switch speed, reduce system loading.

If there is the S1 interface to connect between the service core net node of source wireless access network network node and the Target Wireless Access Network network node, and there is link X2 in source, Target Wireless Access Network network node, but aborted appears in the X2 link.If at this moment directly send handoff request, switch so and will fail by X2 interface.Therefore increasing this step judges the X2 interface Link State in advance, if undesired just the transferring of X2 interface Link State initiated handoff request by the S1 interface, avoids handoff failure to improve handover success rate.

On the basis of S1, X2 interface allocation list, increase a state value for this reason, be used for representing whether X2, S1 link can normally use.Can increase parameter on concrete and represent situations such as whether link is available, unavailable, do not exist.For example consult following S1, X2 interface allocation list.

The wireless access network network node	Core net node 1	Core net node 2	Core net node 3	X2
					Wireless access network network node 2	0	1	2	1
Wireless access network network node 3	0	0	1	2

Table five: the S1 on the wireless access network network node 1, X2 interface allocation list

In the table five: " X2 " these row that increase more, same duration " 0 " expression does not have link to connect, and " 1 " is normal, and " 2 " are that fault is unavailable.The parametric representation of table five: wireless access network network node 1 is good for use with the X2 link of wireless access network network node 2.Wireless access network network node 1 is unavailable with the X2 link of wireless access network network node 3.Wireless access network network node 2 does not have S1 to be connected with core net node 1, is connected good for usely with the S1 of core net node, is connected unavailable with the S1 of core net node 3.Wireless access network network node 1 is unavailable with the X2 link of wireless access network network node 3.

In other embodiments, described " X2 " these row also can be to exist in the another one table, utilize it when carrying out this step 201, are options.

" judge whether described S1 and/or X2 interface be available, continue to carry out flow process under available situation, otherwise depend on the circumstances " of increasing in step 202 specifically decomposes as follows:

B, in allocation list first row, search, if find Target Wireless Access Network network node, continue in allocation list, to search the value of these row of X2 again, if it is unavailable to find the X2 link, then switch and send Handover Require by the S1 interface, otherwise change above-mentioned steps C, step D below changeing behind the completing steps C;

D, judge whether the S1 connection status of Target Wireless Access Network network node is normal.If normally switch, send handover request by X2 interface.Otherwise switch by the S1 interface, send Handover Request.

For example, source wireless access network network node 1 is prepared tangential Target Wireless Access Network network node 2, during switching, source wireless access network network node 1 is look-up table five at first, the state of checking X2 is 1, and the X2 link is normal, sees the state of the core net node that links to each other with wireless access network network node 2 again.The state of finding core net node 2 is 1, illustrates that the S1 link is normal, switches by X2 interface.

In other embodiments, can be provided with on S1, X2 interface allocation list should be by the option of S1 or X2 interface switching.Comprise when having the information of S1 interface between the service core net node that has X2 interface information, source wireless access network network node between source wireless access network network node and the Target Wireless Access Network network node and the described Target Wireless Access Network network node at described S1, X2 interface allocation list, setting should be by the information of X2 interface switching, otherwise setting should be by the information of S1 interface switching.

Perhaps, can on described S1, X2 interface allocation list basis, dynamically generate a simple more S1 interface switching table.Described S1 interface switching table record switches to Target Wireless Access Network network node and should adopt the S1 interface, utilizes described S1 interface switching table directly to determine to switch and walks S1 interface switching flow or walk the X2 interface switching flow.

Described S1 interface switching table can comprise following two kinds:

1) S1 interface switching table comprises MME and S1 interface options;

In described S1, X2 interface allocation list, the road has been configured or this S1 Interface status is available if the S1 interface of the serving MME of source wireless access network network node in table 1 or table 5 connects, the information that should switch to described Target Wireless Access Network network node by the S1 interface then is set in described S1 interface switching table, and details are as follows:

Consult table six, if exist the S1 interface to connect between the service core net node of source wireless access network network node and the Target Wireless Access Network network node, S1 handoff options value in the then described interface switching table is 0, and expression should not switched by X2 interface by the S1 interface; Otherwise this value is 1, and expression should be switched by the S1 interface.Can consider S1 interface link state simultaneously, for example work as described S1 interface link state for just often, this option just is 0, otherwise is 1.

The service core net node and the pairing value of Target Wireless Access Network network node of looking for source wireless access network network node when switching in this table are directly done to switch according to this value and are selected.

Core net node	Wireless access network network node 2	Wireless access network network node 3
			MME1	1	1
MME2	0	1

Table six: interface switching table one

Table six utilizes table five to generate.Source wireless access network network node is received in abutting connection with the X2 of wireless access network network node, after the S1 interface message, generate aforesaid X2, S1 allocation list, basis generates S1 interface switching table such as table six with the situation whether the service core net node of source wireless access network network node exists the S1 interface to be connected again.If the state of one row of the corresponding core net node promptly in the table five is available, then thinks and switch by X2 interface, otherwise should switch by S1.

2) the interface switching table only comprises the S1 interface options.

The similar scheme 1 of this scheme), but different be the S1 interface options that in the interface switching table, only comprises different core network node between two wireless access network network nodes, simpler, principle is as follows:

Suppose that each MME that connects same wireless access network network node belongs to same MME POOL (MME pond), must connect same wireless access network network node by MME pool together.Though between two wireless access network network nodes X2 interface is arranged, they are connected to two MMEpool, so the switching between them need be undertaken by S1.Can dispose so interface switching table, this class wireless access network network node is put in, the wireless access network network node in this interface switching table will switch by the S1 interface.

The concrete grammar that described interface switching table is set is as follows:

One, need obtain the S1 interface message of Target Wireless Access Network network node earlier, Target Wireless Access Network network node is issued source wireless access network network node by the S1 interface message of one/a plurality of/whole MME that the X2 interface handle links to each other with oneself;

Two,, judge that whether and between the same core net node described source wireless access network network node and described Target Wireless Access Network network node exist the S1 interface according to the S1 interface message of described Target Wireless Access Network network node and the S1 interface message of source wireless access network network node;

Judging when not having identical core net node between described source wireless access network network node and the described Target Wireless Access Network network node, also promptly not and when having the S1 interface between the same core net node, the information that switches to described Target Wireless Access Network network node by the S1 interface only is set in described interface switching table

After source wireless access network network node is received this S1 interface message, compare with the S1 interface message of oneself, if have one/a plurality of/whole MME identical, just illustrate that source wireless access network network node and Target Wireless Access Network network node belong to same MME pool; If all inequality, illustrate not belong to a MME pool.Then these wireless access network network nodes that do not belong to same MME are put into the interface switching table, as follows:

Above-mentioned S1 information comprises that configuration information also can the company's of adding line state information.

Target Wireless Access Network network node	State
		Enodeb2
	1

Table seven: interface switching table two

Above-mentioned S1 information comprises that configuration information also can add link-state information.

As shown in Figure 4, during switching,

Step 401: source wireless access network network node is at first searched this table;

Step 402:

If have Target Wireless Access Network network node or state normal in this table of A, so just switch by the S1 interface;

B otherwise, carry out trial or because the undesired direct feedback handoff failure of Link State that X2 switches.

If also have a state information in the table seven, if state representation is normal just by the switching of S1 interface so.This state information is an option.

If the S1 of wireless access network network node, X2 interface changes, and needs notice in abutting connection with the wireless access network network node, allows the wireless access network network node of adjacency upgrade S1, X2 interface allocation list.Therefore, interface message method for synchronous second execution mode of the present invention is proposed.Consult Fig. 5, described method comprises:

Step 501: the condition that judges whether to satisfy the trigger interface information updating;

Be to judge whether the S1 of described wireless access network network node and/or X2 interface configuration and/or state change in the present embodiment;

Step 502: when satisfying the condition of described trigger interface information updating, send between this wireless access network network node and the core net node the S1 interface and/or and adjacency wireless access network network node between X2 interface information to adjacency wireless access network network node;

When whether the S1 of this wireless access network network node and/or X2 interface configuration and/or state change, be connected to another core net node such as this wireless access network network node, variation has taken place in the S1 interface configuration; Become such as X2 interface address again with neighbours' wireless access network network node; Such as S1 and X2 interface configuration variation has taken place all again.

It is described in abutting connection with the wireless access network network node at this time to send the message informing that carries this wireless access network network node S1 and/or X2 interface information by X2 interface.Can be with a special signaling in abutting connection with wireless access network network node 1, such as Config Info message.Also can follow in other provisioning message the insides and send.

Described wireless access network network node S1 and/or X2 interface information comprise following content:

This wireless access network network node and in abutting connection with the wireless access network network node exist X2 interface information and/or: the information that has the S1 interface between this wireless access network network node and the core net node.Just S1 as shown in Table 1, X2 interface allocation list.

Also can comprise simultaneously: S1 as shown in Table 5, X2 interface allocation list:

This wireless access network network node and other are in abutting connection with the S1 between the wireless access network network node and/or X2 interface information available whether.The parameter of expression state in S1 as shown in Table 5, the X2 interface allocation list.

Step 503: receive described S1 and/or X2 interface information;

Receive described S1 and/or X2 interface information in abutting connection with the wireless access network network node.

Step 504: according to described S1 that receives and/or X2 interface information, the described interface message of configuration/renewal in abutting connection with the wireless access network network node.

After receiving described S1 and/or X2 interface information in abutting connection with the wireless access network network node,, then dispose this interface message if itself there is not this interface message; If itself there is old interface message, then upgrade it.

From as can be seen above, because the wireless access network network node up-to-date is stated S1 and/or X2 interface information is told in abutting connection with the wireless access network network node with self automatically when satisfying certain condition in wireless network, make and all know up-to-date X2 interface information and in abutting connection with the S1 interface message of wireless access network network node in abutting connection with the wireless access network network node.Carry out interface selection judgement according to described up-to-date S1 and/or X2 interface information, just can carry out handover operation fast.Cost height, the inefficient technical problem of avoiding prior art static configuration manual modification wireless access network Network-Node Interface information to be caused, also avoid prior art need carry out the judgement that once can use X2 interface to switch, improve switch speed, reduce system loading.

In addition, can further include:

Step 505: this wireless access network network node receives described interface message in abutting connection with the wireless access network network node, and described interface message comprises: described between wireless access network network node and core net node the S1 interface and/or and this wireless access network network node between X2 interface information.

Also be this wireless access network network node except transmission interface information to other wireless access network network node, can receive the interface message of other wireless access network network nodes, as switching the basis for estimation of selecting.The wireless access network network node is all used the present invention in wireless network, mutually mutual up-to-date S1 and/or X2 interface information separately between the wireless access network network node then, before then any one wireless access network network node switches to Target Wireless Access Network network node, know that all needing to adopt X2 interface still is that the S1 interface switches, improve switching efficiency, the operation of avoiding handoff failure and carrying out interface testing.

Simultaneously, known S1 and/or X2 Link State, more accurate when carrying out the handoff request selection so, improve success rate for switching.

In the step 502, if the S1 of wireless access network network node, the X2 configuration changes, and can pass through X2 interface message informing all of its neighbor wireless access network network node at any time.Perhaps, all send this message no matter whether change.

After the interface message of wireless access network network node, further comprise in that configuration/renewal is described:

Calculate switching according to described interface message in abutting connection with the wireless access network network node and select configuration information table, described switching selects configuration information table to comprise need communicate the content of switching selection by S1 or X2 interface.Can carry out switching judging faster like this, improve handover operation speed.

In other embodiments, the condition that judges whether to satisfy the trigger interface information updating in the described step 501 can also be following A, B, and C, D, any among E or the F:

Whether the timer of the S1 of A, described wireless access network network node and/or X2 interface information is overtime;

Can periodically carry out between each wireless access network network node alternately, such as on S1 and/or X2 interface information, timer being set.And, can also be before transmission interface information judge earlier whether the S1 of described wireless access network network node and/or X2 interface information or Link State change, it is described in abutting connection with the wireless access network network node to send message informing when changing, otherwise does not send.Perhaps do not judge, timer then just send;

B, whether receive described in abutting connection with the request S1 of wireless access network network node and/or the message of X2 interface information;

The wireless access network network node can be by X2 interface periodically to the S1 of its latest configuration of request of adjacent wireless access network network node, X2 interface information.When this wireless access network network node timer expiry, initiatively to adjacency wireless access network network node request X2, S1 interface message.

Whether C, described X2 handover operation of initiating to this wireless access network network node in abutting connection with the wireless access network network node fail;

If this wireless access network network node is searched S1, X2 interface allocation list, decision is switched by X2 interface, after sending switching message, Target Wireless Access Network network node finds that own S1 interface link has broken, and sends switch failure information at this moment will for source wireless access network network node.At this moment S1, X2 interface allocation list can follow switch failure information to send, and perhaps give a cause value, want new S1, X2 interface allocation list information by this wireless access network network node to Target Wireless Access Network network node.Perhaps the S1 interface of Target Wireless Access Network network node can not the time spent, and core net node sends allocation list information about the S1 interface for source wireless access network network node.

When whether handover operation fails, in step 402, can adopt and send S1, X2 interface information in the following method:

The S1 and/or the X2 interface information of in returning to described handoff failure response in abutting connection with the wireless access network network node, carrying described wireless access network network node; Or

In returning to described handoff failure response in abutting connection with the wireless access network network node, carry failure cause, after receiving described failure cause, analyze cause value in abutting connection with the wireless access network network node.If failure causes such as allocation of radio resources then illustrate handoff failure.If the S1 interface of Target Wireless Access Network network node does not dispose or state is unavailable, this wireless access network network node sends a request message and requires this wireless access network network node to send S1 and/or X2 interface informational message so, sends the S1 of this wireless access network network node and/or X2 interface information to adjacency wireless access network network node.Or

In returning to described handoff failure response in abutting connection with the wireless access network network node, carry failure cause, in abutting connection with the Access Network network node after receiving described failure cause, if failure cause be Target Wireless Access Network network node with core net node between no S1 interface be connected.Source wireless access network network node is to the S1 and the X2 interface configuration information of core net node request target wireless access network network node.If it is normal that target S1 interface configuration is recovered, can switch by X2 interface, but this wireless access network network node is not also known, it is initiated S1 interface handoff request earlier and gives MME, after MME receives this handoff request, the MME that finds Target Wireless Access Network network node and this wireless access network network node is identical, MME also can trigger the configuring condition that sends change Target Wireless Access Network network node to this wireless access network network node so, and perhaps notification target wireless access network network node sends S1 interface configuration information to this wireless access network network node.This wireless access network network node is revised X2, the S1 allocation list after receiving the S1 interface configuration information of Target Wireless Access Network network node.

If this wireless access network network node is searched S1, X2 allocation list, decision is carried out X2 interface and is switched, send switch message after, Target Wireless Access Network network node finds that own S1 interface link has broken, and sends handoff failure at this moment will for source NB.At this moment allocation list can follow switch failure information to send, and perhaps gives a cause value, wants new allocation list information by this wireless access network network node to Target Wireless Access Network network node.Perhaps the S1 interface of Target Wireless Access Network network node can not the time spent, and core net node sends about S1 allocation list information to the source.

Consult Fig. 6, the detailed step of this interface message method for synchronous execution mode is as follows:

Step 601: terminal to report measurement report.

Step 602: after this wireless access network network node is received measurement report, if decision will be switched, if there is X2 interface to connect, this wireless access network network node sends handoff request Ho Request to Target Wireless Access Network network node by X2 interface so.

Step 603: if Target Wireless Access Network network node finds that the S1 interface breaks or other reasons is failed such as allocation of radio resources, can not switch, satisfy the condition of described trigger interface information updating, answer handoff failure so just for this wireless access network network node.At this moment failure reason value can be with, perhaps if the configuration of S1 interface or state issues, also S1 can be carried, the X2 interface allocation list sends together.

Step 604: after this wireless access network network node is received Ho Failure, judge failure cause according to cause value, if the configuration of S1 interface or state reason, and Ho Failure is directly carrying allocation list information, so just directly upgrades S1, X2 interface allocation list on this wireless access network network node according to this allocation list.The configuration reason that has just shown S1 else if, cause value are not configuration or states of S1 interface, and do not carry allocation list, change step 605 so.If failure cause is radio-resource-configuration failure and the handoff failure that causes finishes so.

Step 605: this wireless access network network node sends message (such as Config Info Request message) by X2 interface and gives Target Wireless Access Network network node, the X2 that look for novelty, S1 interface message.

Step 606: send between Target Wireless Access Network network node and the core net node the S1 interface and/or and this wireless access network network node between X2 interface information to this wireless access network network node.

Target Wireless Access Network network node is received message (such as Config Request message), sends new configuration information table (such as Config info message) for the wireless access network network node of adjacency.

The cause value here can be unavailable for the not configuration of: the S1 interface of Target Wireless Access Network network node, S1 state, allocation of radio resources failure, NAS reason, transmission channel reason, protocol failure reason etc.

When target S1 interface recovered, with reference to figure 7, this interface message method for synchronous execution mode comprised that step is as follows:

Step 701: terminal to report measurement report.

Step 702: after source wireless access network network node is received measurement report, if decision to switch, read S1, X2 interface allocation list after, decision is initiated switching by the S1 interface to Target Wireless Access Network network node.

Step 703:MME receives handoff request, judge whether to satisfy the condition of trigger interface information updating, whether promptly judge between Target Wireless Access Network network node and described source wireless access network network node and the described core net node all exists the S1 interface to be connected, when judging that Target Wireless Access Network network node and source wireless access network network node are same MME, then tell source wireless access network network node to upgrade the S1 configuration information of Target Wireless Access Network network node.Change step 704, or step 704 ', send the S1 of Target Wireless Access Network network node and/or X2 interface information step to source wireless access network network node;

Step 704:MME initiatively sends the S1 interface message of Target Wireless Access Network network node to described source wireless access network network node, can carry in the handover acknowledge in special message or in switching flow; Or

Step 704 ': MME sends message for Target Wireless Access Network network node, trigger Target Wireless Access Network network node and send the S1 interface message, can carry in the handover acknowledge in special message or in switching flow to source wireless access network network node.

Step 705: source wireless access network network node is revised X2, S1 interface configuration table/S1 interface switching table.

Whether D, this wireless access network network node restart.

Whether the background management system EMS of E, described wireless access network network node revised the interface message of described wireless access network network node;

At this time, transmission S1 and/or X2 interface information comprise to the step of adjacency wireless access network network node:

1) EMS of described wireless access network network node (Element Manager System, the background management system of wireless access network network node) sends the message of the S1 carry described modification and/or X2 interface information to the described EMS in abutting connection with the wireless access network network node of administration;

Consult Fig. 8, when configuration changes, can tell in abutting connection with wireless access network network node webmaster, tell in abutting connection with the wireless access network network node by adjacency wireless access network network node webmaster by the message between the webmaster.For example:

Step 801: judge the condition that satisfies the trigger interface information updating, promptly

If the allocation list of wireless access network network node 1 is changed, send Config Modified message to wireless access network network node 1 by the EMS1 modification; After receiving Config Modified message, wireless access network network node 1 upgrades S1, the X2 interface allocation list of oneself storing, and changes step 804; Perhaps

If the allocation list of wireless access network network node 1 changes, by EMS send between wireless access network network node 1 and the core net node the S1 interface and/or and adjacency wireless access network network node between X2 interface information to wireless access network network node 2, specific as follows:

Step 802: tell EMS1 by config request message;

Step 803:EMS1 receives Config Request message, revises the corresponding configuration situation;

Step 804:EMS1 gives in abutting connection with the EMS2 transmission and carries the Config Request of described S1 and/or X2 interface information, and EMS2 does the modification of corresponding configuration table according to described S1 and/or X2 interface information;

Step 805:EMS2 is by carrying the Config Info message informing wireless access network network node 2 of described S1 and/or X2 interface information;

Step 806: wireless access network network node 2 is revised the corresponding configuration table according to described S1 and/or X2 interface information.

F, taking place that the S1 interface switches and core net node is received the handoff request message in abutting connection with the wireless access network network node as source node, judging whether to exist to be connected with same core net as this wireless access network network node of destination node and described source wireless access network network node; It is the S1 interface message that then initiatively sends Target Wireless Access Network network node to described source wireless access network network node; Perhaps triggering Target Wireless Access Network network node sends the S1 interface message for source wireless access network network node.

Consult Fig. 9, the present invention also provides wireless network first execution mode, comprises the wireless access network network node 720,730,740 of core net node 710 and adjacency.Wherein wireless access network network node 720 comprises:

Judging unit 721 is used to judge whether to satisfy the condition of trigger interface information updating;

Transmitting element 722, when satisfying the condition of described trigger interface information updating, send between this wireless access network network node 720 and the described core net node 710 the S1 interface message and/or and adjacency wireless access network network node 730 between X2 interface information to described in abutting connection with wireless access network network node 730;

Describedly comprise in abutting connection with wireless access network network node 730:

Receiving element 731 is used to receive described S1 and/or X2 interface information;

Processing unit 732, according to described S1 that receives and/or X2 interface information, the described interface message of configuration/renewal in abutting connection with wireless access network network node 730.

Switch selected cell 733, be used for searching the interface message of described processing unit 732, find described two in abutting connection with wireless access network network node 720,730 exist X2 interface information and according to described S1 interface message judge described as destination node in abutting connection with wireless access network network node 730 and source when the service core net node 710 of wireless access network network node 720 exists the S1 interface to be connected, select X2 interface to initiate handover operation, otherwise select the S1 interface to initiate handover operation.

From as can be seen above, judge whether the interface message of wireless access network network node needs to upgrade owing in wireless network, adopt judging unit 721, automatically self up-to-date is stated S1 and/or X2 interface information is told in abutting connection with wireless access network network node 730 when needed, make and all know up-to-date X2 interface information and in abutting connection with the S1 interface message of wireless access network network node 730,740 in abutting connection with wireless access network network node 730,740.Carry out interface selection judgement according to described up-to-date S1 and/or X2 interface information, just can carry out handover operation fast.Cost height, the inefficient technical problem of avoiding prior art static configuration manual modification wireless access network Network-Node Interface information to be caused, also avoid prior art need carry out the judgement that once can use X2 interface to switch, improve switch speed, reduce system loading.

In addition, described judging unit 721 specifically is used for:

Judge whether configuration of the S1 of described wireless access network network node 720 and/or X2 interface and/or state change; Or

Whether the timer of judging the S1 of described wireless access network network node 720 and/or X2 interface information is overtime; Or

Judge whether to receive described in abutting connection with the request S1 of wireless access network network node 730 and/or the message of X2 interface information; Or

Judge whether described X2 handover operation of initiating to this wireless access network network node 720 in abutting connection with wireless access network network node 730 fails; Or

Judge whether this wireless access network network node 720 restarts; Or

Judge whether the background management system EMS of described wireless access network network node 720 of administration revised the interface message of described wireless access network network node 720.

Also see also Fig. 7, the present invention also provides the wireless access network network node first execution mode 720, comprising:

Transmitting element 722, when satisfying the condition of described trigger interface information updating, send S1 between this wireless access network network node 720 and the core net node and/or this wireless access network network node 720 and in abutting connection with the X2 interface information between the wireless access network network node 730 to described in abutting connection with wireless access network network node 730;

This wireless access network network node 720 can also receive described interface message in abutting connection with wireless access network network node 730, and described interface message comprises: described between wireless access network network node 730 and core net node the S1 interface and/or and this wireless access network network node 720 between X2 interface information.At this moment can further include and switch selected cell (figure does not show), be used to search described interface message, described wireless access network network node 720 and in abutting connection with the service core net node 710 that has X2 interface information and this wireless access network network node 720 between the wireless access network network node 730 with described as destination node when there is the S1 interface message in wireless access network network node 730, select X2 interface to initiate handover operation, otherwise select the S1 interface to initiate handover operation.

Also see also Fig. 7, the present invention also provides the wireless access network network node second execution mode 730, comprising:

Receiving element 731 is used to receive S1 and/or X2 interface information from adjacency wireless access network network node 720;

Processing unit 732, according to described S1 that receives and/or X2 interface information, the described interface message of configuration/renewal in abutting connection with wireless access network network node 720.

Switch selected cell 733, be used for searching the interface message of described processing unit 732, described wireless access network network node 730 and in abutting connection with the service core net node 710 that has X2 interface information and this wireless access network network node 730 between the wireless access network network node 720 with described as destination node when there is the S1 interface message in wireless access network network node 720, select X2 interface to initiate handover operation, otherwise select the S1 interface to initiate handover operation.

Also see also figure eight, the present invention also provides the wireless access network network node the 3rd execution mode 830, comprising: receiving element 831, interface message generation unit 832 and switching selected cell 833.

Described receiving element 831 is used to receive the S1 interface message from adjacency wireless access network network node;

Described interface message generation unit 832 be used for according to S1 interface message of self and described receiving element connect the 831 S1 interface messages of receiving, judge described as this wireless access network network node 831 of source node with in abutting connection with between the wireless access network network node whether identical core net node is arranged as destination node, when not having identical core net node, generate the handover information that switches to described Target Wireless Access Network network node by the S1 interface;

Described switching selected cell 833 is used for searching the handover information that described interface message generation unit 832 generates when switching, in described information, find when switching to the information of described Target Wireless Access Network network node by the S1 interface, select the S2 interface to initiate handover operation in abutting connection with the wireless access network network node, otherwise select X2 interface to initiate handover operation in abutting connection with the wireless access network network node to described to described.

Above-mentioned wireless access network network node first, two, three execution modes can be applied in the invention described above interface message method for synchronous and each execution mode of communication handover method, can support X2 of the present invention respectively, the function that the S1 interface message is synchronous and according to described X2, the S1 interface message communicates the function of switching, the cost height of avoiding prior art static configuration manual modification wireless access network Network-Node Interface information to be caused, inefficient technical problem, also avoid prior art need carry out the judgement that once can use X2 interface to switch, improve switch speed, reduce system loading.

One of ordinary skill in the art will appreciate that all or part of step that realizes in the said method execution mode is to instruct relevant hardware to finish by program, described program can be stored in the computer read/write memory medium, this program can comprise the steps: to judge whether to satisfy the condition of trigger interface information updating when carrying out; When satisfying the condition of described trigger interface information updating, send between this wireless access network network node and the core net node the S1 interface and/or and adjacency wireless access network network node between X2 interface information to adjacency wireless access network network node; Receive described S1 and/or X2 interface information; According to described S1 that receives and/or X2 interface information, the described interface message of configuration/renewal in abutting connection with the wireless access network network node.

Perhaps, described program can comprise the steps: when switching when carrying out, the interface switching table of source wireless access network network node reading and saving, described interface switching table record the information that whether can switch to Target Wireless Access Network network node by the S1 interface; Record when switching to the information of described Target Wireless Access Network network node at described interface switching table, switch by the S1 interface by the S1 interface; Otherwise undertaken by X2 interface; Or, described program can comprise the steps: when switching when carrying out, source wireless access network network node fetch interface information, described interface message comprises: whether exist between source wireless access network network node and the Target Wireless Access Network network node X2 interface information and/or: the information that whether has the S1 interface between the service core net node of source wireless access network network node and the described Target Wireless Access Network network node; Comprise in described interface message and to switch by X2 interface when having the information of S1 interface between the service core net node that has X2 interface information, source wireless access network network node between source wireless access network network node and the Target Wireless Access Network network node and the described Target Wireless Access Network network node; Otherwise switch by the S1 interface.Here the alleged storage medium that gets, as: ROM/RAM, magnetic disc, CD etc.

What deserves to be explained is that the judging unit 721 in wireless access network network node first execution mode of the present invention, transmitting element 722, switching selected cell 733 can be integrated in the computing module; Simultaneously, receiving element 731 in wireless access network network node second execution mode of the present invention, processing unit 732, switching selected cell 733 also can be integrated in the processing module, even described each unit of the embodiment of the invention can be integrated in the processing module.

What deserves to be explained is that also the judging unit 721 in wireless access network network node first execution mode of the present invention, transmitting element 722, switching selected cell 733 both can adopt the form of hardware to realize, also can adopt the form of software function module to realize.Receiving element 731 in wireless access network network node second execution mode of the present invention, processing unit 732, switching selected cell 733 are also in like manner.The combination of above-mentioned each unit both can be used as independently production marketing or when using, and also can be used as to be stored in the computer read/write memory medium.

More than a kind of method for synchronous provided by the present invention, communication handover method, wireless network and wireless access network network node are described in detail by specific embodiment, the explanation of above embodiment just is used for help understanding method of the present invention and thought thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims

1. an interface message method for synchronous is characterized in that, comprising:

Receive this wireless access network network node transmission interface information in abutting connection with the wireless access network network node, described interface message comprises the S1 interface message or the X2 interface information of described wireless access network network, described S1 interface is the interface between described wireless access network network node and the core net node, and described X2 interface is described wireless access network network node and described interface between the wireless access network network node;

Described in abutting connection with the wireless access network network node according to the described interface message that receives, dispose or upgrade described interface message in abutting connection with the wireless access network network node.

2. method according to claim 1 is characterized in that, described interface message sends by described X2 interface.

3. method according to claim 1 is characterized in that, described S1 interface message comprises the information that has the S1 interface between described wireless access network network node of indication and the described core net node; Described X2 interface information comprises described wireless access network network node of indication and in abutting connection with the information that has X2 interface between the wireless access network network node.

4. according to the arbitrary described method of claim 1 to 3, it is characterized in that described interface message is sent when trigger interface information updating condition satisfies by described wireless access network network node.

5. method according to claim 4 is characterized in that, described trigger interface information updating condition comprises: the S1 interface configuration of described wireless access network network node changes, or the X2 interface configuration changes; Or the S1 Interface status of described wireless access network network node changes, or the X2 interface state changes; Or described wireless access network network node restarts.

6. according to the arbitrary described method of claim 1 to 3, it is characterized in that described method also comprises:

Describedly send described interface message in abutting connection with the wireless access network network node to described wireless access network network node in abutting connection with the wireless access network network node, described interface message in abutting connection with the wireless access network network node comprises described S1 interface message or X2 interface information in abutting connection with the wireless access network network node.

7. according to the arbitrary described method of claim 1-3, it is characterized in that, between the core net node of wireless access network network node and described wireless access network network node connection, exist the S1 interface to connect as if described, describedly select to switch by X2 interface in abutting connection with the wireless access network network node, otherwise, select to switch by the S1 interface.

8. a wireless access network network node is characterized in that, comprising:

Receiving element, be used to receive the interface message that sends in abutting connection with the wireless access network network node, described interface message comprises described S1 interface message or X2 interface information in abutting connection with the wireless access network network node, described S1 interface is described interface between wireless access network network node and core net node, and described X2 interface is described wireless access network network node and described interface between the wireless access network network;

Processing unit is used for the interface message that receives according to described, disposes or upgrade the interface message of described wireless access network network node.

9. wireless access network network node according to claim 8 is characterized in that described receiving element receives described interface message by described X2 interface.

10. wireless access network network node according to claim 8 is characterized in that, described S1 interface message comprises that indication is described in abutting connection with the information that has the S1 interface between wireless access network network node and the described core net node; Described X2 interface information comprises described wireless access network network node of indication and in abutting connection with the information that has X2 interface between the wireless access network network node.

11. to 10 arbitrary described wireless access network network nodes, it is characterized in that according to Claim 8 described interface message is sent in abutting connection with the wireless access network network node by described when trigger interface information updating condition satisfies.

12. wireless access network network node according to claim 11 is characterized in that, described trigger interface information updating condition comprises: described S1 interface configuration in abutting connection with the wireless access network network node sends and changes, or the X2 interface configuration changes; Or described S1 Interface status in abutting connection with the wireless access network network node changes, or the X2 interface state changes; Or, describedly restart in abutting connection with the wireless access network network node.

13. according to Claim 8 to 10 arbitrary described wireless access network network nodes, it is characterized in that, also comprise: switch selected cell, be used for if described wireless access network network node and describedly between the wireless access network network node, have X2 interface, and described wireless access network network node with described in abutting connection with existing the S1 interface to be connected between the core net node of wireless access network network node, selection is switched by X2 interface, otherwise, select to switch by the S1 interface.

14. a wireless network is characterized in that, comprises as the arbitrary described wireless access network network node of claim 8 to 13.