CN108377518A

CN108377518A - A kind of connection re-establishment method and device, electronic equipment

Info

Publication number: CN108377518A
Application number: CN201610961704.4A
Authority: CN
Inventors: 陆婷; 余媛芳; 高音
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-11-04
Filing date: 2016-11-04
Publication date: 2018-08-07
Anticipated expiration: 2036-11-04
Also published as: CN108377518B; WO2018082623A1

Abstract

The invention discloses a kind of connection re-establishment method and device, electronic equipments, including：Terminal sends first message to base station；The terminal receives the second message that the base station is sent；The terminal sends third message to the base station；The first message, second message and third message meet at least one of：The first message includes at least one of：S TMSI information, cell identity information, the Cell Global Identification information of evolution, the S TMSI information of preset length, the cell identity information of preset length, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C RNTI, Physical Cell Identifier PCI, shortMAC I；The second message includes：The instruction information of indicating terminal to report S TMSI information or cell identity information；The third message includes at least one of：S TMSI information, cell identity information, the Cell Global Identification information of evolution, S TMSI information, the cell identity information of preset length of preset length.

Description

A kind of connection re-establishment method and device, electronic equipment

Technical field

The present invention relates to one in field of communication technology more particularly to control plane (CP, Control Plane) optimal way Kind connection re-establishment method and device, electronic equipment.

Background technology

Machinery compartment (M2M, Machine to Machine) communication is that the 5th third-generation mobile communication technology (5G) is studied at present One important applied field of one important topic and future wireless system.In M2M projects, for low cost, low work( The termination property such as consumption, Hypomobility, poor throughput, it is proposed that narrowband Internet of Things (NB-IoT, NarowBand-Internet of Things sub- project) is studied, that is, in the frequency band of 200khz is NB-IoT low-cost user equipments (UE, User Equipment) wireless communication services of poor throughput are provided.

In order to reduce signaling overheads, reduce the power consumption of NB-IoT terminals, existing research introduce two kinds of cognition IoT (cIoT, Cognitive IoT) optimal way：

1, control plane optimal way (hereinafter CP optimal ways)：Data will not be established between terminal and network wirelessly to hold It carries (DRB, Data Radio Bearer), AS safe contexts will not be established, data are packaged into NAS PDU and are attached to control It is transmitted in plane signaling processed.The effect that this mode saves signaling is obvious, but the data packet length once transmitted is limited, for Bigger data packet needs to be divided into multiple parcels and sends, in the case where covering poor, is easy to bring packet loss problem, cause Recipient is difficult to receive complete data packet.

2, user plane optimal way (hereinafter user plane controls (UP, User Plane) optimal way)：Terminal and net Network establishes complete connection, using DRB transmission datas, after data transmission, passes through in terminal and network side and hangs up flow and preserve Carrying information context, AS safe contexts etc., subsequently again transmission data when, both sides are protected by restoring flow before restoring The context deposited is continuing with DRB carryings and carrys out transmission data.This mode and existing procedure difference are little, to the length of data packet Degree does not obviously limit, but the effect for saving signaling is limited.

In order to support NB-IoT low cost terminals in the mobility of connected state in existing research, allow to use CP optimal ways Terminal using air interface the flow that re-establishes, such as terminal detected under old evolution base station (eNB) Radio Link lose (RLF, Radio Link Failure) is lost, then terminal can be attempted to initiate re-establishing for air interface at new eNB.New eNB Receive terminal re-establish request after, eNB (the hereinafter old eNB) hairs for the generation Radio Link Failure for needing to report to terminal It plays context and obtains flow (Context fetch procedure), to obtain the context of terminal from old eNB, in turn Complete the switching that entire air interface re-establishes flow and the paths network side S1.If necessary, NAS data should also be supported It retransmits.

For the connection re-establishment flow that the above-mentioned terminal using CP optimal ways triggers, need to consider that following several respects are asked Topic.Flow is obtained firstly, for the context between new eNB and old eNB, it may be considered that two different modes：

First way：In existing network side flow, when new eNB receives what terminal was initiated by Radio Link Failure Air interface re-establishes request, and new eNB can send Radio Link Failure to old eNB and indicate (RLF INDICATION) message, RLF INDICATION message includes that new eNB is re-established by air interface and re-established identification information group entrained by request message The terminal iidentification and cell identity information list that { C-RNTI (16bits), PCI (9bits), shortMAC-I (16bits) } is obtained Member, wherein shortMAC-I is shown that optionally new eNB can also be wrapped by terminal according to access layer security algorithm and cipher key calculation ShortMAC-I information units are included, it is small to solve potential physics so as to the old eNB of auxiliary reception RLF INDICATION message Area identifies (PCI) collision problem, so as to accurately judge whether oneself is that terminal is connected when Radio Link Failure occurs eNB.But since existing CP optimal ways do not support AS layers of security mechanism, it will be unable to basis using the terminal of CP optimal ways and connect Enter layer security algorithm and cipher key calculation and report ShortMAC-I information to new eNB, then new eNB also can not be in RLF INDICATION message includes ShortMAC-I, needs to consider other schemes to solve the problems, such as the PCI confusion on old eNB.

The second way：Another context acquisition modes be borrow for UP optimal ways air interface restore flow and The X2 interface context of introducing restores flow.I.e. when new eNB receives the air interface weight that terminal is initiated by Radio Link Failure When establishing request, new eNB can be sent to old eNB restores UE context requests (RETRIEVE UE CONTEXT REQUEST) Message carrys out context of the acquisition request terminal on old eNB.But in existing standard, RETRIEVE UE CONTEXT What REQUEST message included is the recovery mark that new eNB is obtained from air interface, and also needs to include ShortMAC-I letters Breath, and in the air interface of CP modes re-establishes flow, new eNB can not get recovery mark and be pacified based on access layer The ShortMAC-I information of full mechanism (access layer security algorithm, access layer security key etc.), thus it is same in this way It needs to consider other schemes to solve the problems, such as identifications of the old eNB to base station and terminal, including PCI confusion problem.It is existing at present to grind Recovery mark can be carried in re-establishing request message by studying carefully proposition, but how solve the problems, such as that ShortMAC-I missings cause It also needs to further study.

Secondly, in above-mentioned flow, if receiving RLF INDICATION message or RETRIEVE UE CONTEXT The old eNB of REQUEST message is successfully matched to terminal contexts, it can pass through the switching request message in switching preparation process HANDOVER REQUEST message restores UE context responses RETRIEVE UE CONTEXT RESPONSE message to new eNB Transmit terminal contexts.Either HANDOVER REQUEST message or RETRIEVE UE CONTEXT RESPONSE disappears Breath, all essential X2AP, S1A interface message, the AS layer security information of terminal and E-RAB carrying informations including UE.But it is right In CP optimal ways, since terminal passes through Signaling Radio Bearer (SRB, the Signalling Radio that eats dishes without rice or wine using NAS signaling Bearers) transmission data, thus will not be established with network side E-RAB carrying, and because CP optimal ways do not support AS safety and There is no AS layers of security information, therefore most of mandatory field in above-mentioned existing procedure message is all nothing for CP optimal ways What method obtained, it needs to consider solution.

Finally, terminal is initiated to re-establish on new eNB, and the path switching (S1- of S1 interfaces is also triggered in existing standard AP Path Switch) flow, to be established from new eNB to service mobility management entity (MME, Mobility for UE Management Entity) S1 signaling connections, restore terminal contexts and bearer context on MME, and update downlink Path.It is contemplated that not having user plane link in CP optimal ways between base station and MME, recovering bearing context is not needed, Therefore it needs to consider the mode that other simplify to establish the S1 signaling connections from new eNB to service MME.

Invention content

In order to solve the above technical problems, an embodiment of the present invention provides a kind of connection re-establishment method and device, electronics to set It is standby.

A kind of connection reconstruction cube method, the method includes：

Terminal sends first message to base station, and the first message is re-established for asking to be wirelessly connected；

The terminal receives the second message that the base station is sent, and the second message is that the response of the first message disappears Breath；

The terminal sends third message to the base station, and the third message is used to indicate the wireless connection and re-establishes It completes；

The first message, second message and third message meet at least one of：

The first message includes at least one of：Temporary Mobile Subscriber Identity S-TMSI information, cell identity information, The Cell Global Identification information of evolution, the S-TMSI information of preset length, the cell identity information of preset length, cell wireless network Network temporary identifier C-RNTI, Physical Cell Identifier PCI, short medium access control shortMAC-I；The second message includes：Refer to Show that terminal reports the instruction information of S-TMSI information or cell identity information；The third message includes at least one of：S- TMSI information, cell identity information, the Cell Global Identification information of evolution, the S-TMSI information of preset length, preset length Cell identity information.

After the terminal receives the second message, send third message to the base station, also, the terminal according to Whether the instruction information or value according to the instruction information are carried in the second message, it is determined whether in third message Middle carrying at least one of：S-TMSI information, cell identity information, the Cell Global Identification information of evolution, preset length S-TMSI information, the cell identity information of preset length.

The S-TMSI information or cell identity information of the preset length include preset length part S-TMSI information or Partial cell identification information.

Terminal includes at least following one in the mode that first message includes the identification information：

Terminal re-establishes mark using S-TMSI information and Physical Cell Identifier information structuring；

Terminal is known using C-RNTI information and cell identity information Tectonic Rebuild day-mark；

Terminal re-establishes mark using C-RNTI information, PCI information and shortMAC-I information structurings；Wherein, ShortMAC-I information constructs one of in the following ways：The S-TMSI information of preset length, the cell ID of preset length Information.

A kind of connection reconstruction cube method, the method includes：

First network element receives the first message that terminal is sent, and the first message is re-established for asking to be wirelessly connected；

First network element sends second message to the terminal, and the second message is that the response of the first message disappears Breath；

First network element receives the third message of the terminal, and the third message is used to indicate the wireless connection weight It establishes and completes；

After the first network element triggering wireless connection re-establishes, the 4th message, the 4th message are sent to the second network element For acquisition request terminal contexts, or for notifying Radio Link Failure；

The first message, second message and third message meet at least one of：

Wherein, the first message includes at least one of：S-TMSI information, cell identity information, the cell of evolution Overall identification information, the S-TMSI information of preset length, the cell identity information of preset length, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI, Physical Cell Identifier PCI, shortMAC-I；The second message includes：Indicating terminal to report S-TMSI information is small The instruction information of area's identification information；The third message includes at least one of：S-TMSI information, is drilled cell identity information Into Cell Global Identification information, the S-TMSI information of preset length, the cell identity information of preset length.

When AS layers of safe un-activation of access layer of terminal or terminal do not have effective shortMAC-I information, the method Further include：

First network element sends the 4th message to the second network element again after the third message for receiving terminal transmission.

When the safe un-activation of the AS of terminal layers or terminal do not have effective shortMAC-I information, the method is also wrapped It includes：

First network element determines the purpose network element that the 4th More-Messages-To-Send is sent, the mesh according to first message or third message Network element be one or more second network elements；

Alternatively, the first network element is according to the 4th message of first message or third message constructing, the 4th message includes following At least one：Cell ID, terminal iidentification, security information.

4th message includes at least one of：New information, existing message；The existing message is one of the following： Radio Link Failure instruction message restores UE context request messages.

The method further includes：

Whether first network element is by second message instruction terminal including in the third message in third message Identification information.

First network element is the base station that terminal is sent to that request wireless connection re-establishes, and second network element is terminal The base station of Radio Link Failure occurs.

A kind of connection reconstruction cube method, the method includes：

First network element receives the first message of terminal transmission, and the first message is re-established for asking to be wirelessly connected；

First network element sends the 4th message to the second network element, and the 4th message is used for acquisition request terminal contexts, or Person is for notifying Radio Link Failure；

First network element receives the 5th message that the second network element is sent；

Wherein, when terminal uses control plane optimal way, the 5th message includes at least following information：Old eNB UE X2AP ID, UE contextual informations.

5th message is one of the following：New information, existing message, the existing message are one of the following：Switching is asked It seeks message, restore UE context request messages.

When the 5th message is the existing message, the 5th message includes whether be used to indicate mandatory field effective Instruction information.

When the 5th message is switching request message, the first network element also sends the 6th message, and the 6th message is extremely Include following information less：Old eNB UE X2AP ID、New eNB UE X2AP ID.

6th message is one of the following：New message, existing message, the existing message are：Handover Request Acknowledge Message.

When the 6th message is the existing message, the 6th message includes whether be used to indicate mandatory field effective Instruction information.

A kind of connection reconstruction cube method, the method includes：

First network element after the second network element gets terminal contexts, to third network element send the 7th message, the described 7th Message is used to ask to establish the first network element the interface path to third network element；

Wherein, when terminal uses control plane optimal way, the 7th message includes at least following information：eNB UE S1AP ID、Source MME UE S1AP ID。

The method further includes：

First network element receives the 8th message that third network element is sent, and the 8th message is that the response of the 7th message disappears Breath, wherein the 8th message includes at least one of：MME UE S1AP ID、eNB UES1AP ID.

7th message is one of the following：New message, the first existing message, the second existing message；Described first is existing There is the message to be：Path selection request message, the second existing message are：Initial UE message.

8th message is one of the following：New message, the first existing message, the second existing message；Described first is existing There is the message to be：Path selection request confirmation message, the second existing message are：Establish connection instruction message.

When the 7th message is the described first existing message or the second existing message, the 7th message includes for referring to Show whether mandatory field effectively indicates information.

When the 8th message is the existing message, the 8th message includes whether be used to indicate mandatory field effective Instruction information.

When the 7th message is initial UE message, extends in the 7th message and wirelessly establish reason value word Section, it includes that air interface wirelessly re-establishes reason to make the field；Alternatively, when the 7th message is new information, described By preset field include that air interface wirelessly re-establishes reason in new message.

A kind of connection re-establishment device, described device include：

Communication unit, for sending first message to base station, the first message is re-established for asking to be wirelessly connected；It connects The second message that the base station is sent is received, the second message is the response message of the first message；Send third message to The base station, the third message are used to indicate the wireless connection and re-establish completion；The first message, second message and Three message meet at least one of：

The first message includes at least one of：Temporary Mobile Subscriber Identity S-TMSI information, cell identity information, The Cell Global Identification information of evolution, the S-TMSI information of preset length, the cell identity information of preset length, cell wireless network Network temporary identifier C-RNTI, Physical Cell Identifier PCI, shortMAC-I；The second message includes：Indicating terminal to report S- The instruction information of TMSI information or cell identity information；The third message includes at least one of：S-TMSI information, cell Identification information, the Cell Global Identification information of evolution, the S-TMSI information of preset length, the cell identity information of preset length.

The communication unit is additionally operable to after receiving the second message, sends third message to the base station, also, Whether the terminal is according to carrying the instruction information or according to the value of the instruction information, determination is in the second message It is no to carry at least one of in third message：S-TMSI information, cell identity information, evolution Cell Global Identification letter Breath, the S-TMSI information of preset length, the cell identity information of preset length..

A kind of connection re-establishment device, described device include：

Communication unit, the first message for receiving terminal transmission, the first message are rebuild for asking to be wirelessly connected It is vertical；Second message is sent to the terminal, the second message is the response message of the first message；Receive the terminal Third message, the third message are used to indicate the wireless connection and re-establish completion；Triggering is wirelessly connected re-establish after, to the Two network elements send the 4th message, and the 4th message is used for acquisition request terminal contexts, or for notifying Radio Link to lose It loses；The first message, second message and third message meet at least one of：

When the safe un-activation of the AS of terminal layers or terminal do not have effective shortMAC-I information, communication unit is used for After the third message for receiving terminal transmission the 4th message is sent to the second network element again.

Described device further includes：

Determination unit, for determining purpose network element that the 4th More-Messages-To-Send is sent according to first message or third message, The purpose network element is one or more second network elements；

Construction unit, for according to the 4th message of first message or third message constructing, the 4th message to include following At least one：Cell ID, terminal iidentification, security information.

Described device further includes：

Whether indicating unit includes in the third message for passing through second message instruction terminal in third message Identification information.

In the first network element, first network element is that terminal is sent to ask to be wirelessly connected to re-establish for described device setting Base station, second network element are the base station that Radio Link Failure occurs for terminal.

A kind of connection re-establishment device, described device include：

Communication unit, the first message for receiving terminal transmission, the first message are rebuild for asking to be wirelessly connected It is vertical；The 4th message is sent to the second network element, the 4th message is used for acquisition request terminal contexts, or wireless for notifying Link failure；Receive the 5th message of the second network element transmission；

Wherein, when terminal uses control plane optimal way, the described 5th answers message to include at least following information：Old ENB UE X2AP ID, UE contextual informations.

A kind of connection re-establishment device, described device include：

Communication unit sends the 7th message after getting terminal contexts from the second network element to third network element, described 7th message is used to ask to establish the first network element the interface path to third network element；Wherein, when terminal uses control plane optimization side When formula, the 7th message includes at least following information：eNB UE S1AP ID、Source MME UE S1AP ID.

The communication unit is additionally operable to receive the 8th message that third network element is sent, and the 8th message is the described 7th The response message of message, wherein the 8th message includes at least one of：MME UE S1AP ID、eNB UE S1AP ID。

A kind of electronic equipment, including processor and the memory for being stored with the processor-executable instruction, when described When instruction is executed by processor, the processor executes the connection re-establishment method and step.

In the technical solution of the embodiment of the present invention, terminal sends first message to base station, and the first message is for asking Wireless connection re-establishes；The terminal receives the second message that the base station is sent, and the second message is the first message Response message；The terminal sends third message to the base station, and the third message is used to indicate the wireless connection weight It establishes and completes；The first message, second message and third message meet at least one of：The first message includes following At least one：Temporary Mobile Subscriber Identity S-TMSI information, the Cell Global Identification information of evolution, is preset cell identity information The S-TMSI information of length, the cell identity information of preset length, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C-RNTI, physical area mark Know PCI, shortMAC-I；The second message includes：The instruction of indicating terminal to report S-TMSI information or cell identity information Information；The third message includes at least one of：S-TMSI information, cell identity information, evolution Cell Global Identification Information, the S-TMSI information of preset length, the cell identity information of preset length.First network element receives terminal is sent first and disappears Breath, the first message are re-established for asking to be wirelessly connected；First network element sends second message to the terminal, described Second message is the response message of the first message；First network element receives the third message of the terminal, the third Message is used to indicate the wireless connection and re-establishes completion；After the first network element triggering wireless connection re-establishes, to the second net Member sends the 4th message, and the 4th message is used for acquisition request terminal contexts, or for notifying Radio Link Failure.It adopts With the technical solution of the embodiment of the present invention, the complete of the connection re-establishment that Radio Link Failure triggers under CP optimal ways can be provided Rectification journey reduces signaling traffic load, improves connection re-establishment success rate.

Description of the drawings

Fig. 1 is the flow diagram one of the connection reconstruction cube method of the embodiment of the present invention；

Fig. 2 is the flow diagram two of the connection reconstruction cube method of the embodiment of the present invention；

Fig. 3 is the flow diagram three of the connection reconstruction cube method of the embodiment of the present invention；

Fig. 4 is the flow diagram four of the connection reconstruction cube method of the embodiment of the present invention；

Fig. 5 is the schematic diagram of the embodiment of the present invention one；

Fig. 6 is the schematic diagram of the embodiment of the present invention two；

Fig. 7 is the schematic diagram of the embodiment of the present invention three；

Fig. 8 is the structure composition schematic diagram one of the connection re-establishment device of the embodiment of the present invention；

Fig. 9 is the structure composition schematic diagram two of the connection re-establishment device of the embodiment of the present invention；

Figure 10 is the structure composition schematic diagram three of the connection re-establishment device of the embodiment of the present invention；

Figure 11 is the structure composition schematic diagram four of the connection re-establishment device of the embodiment of the present invention；

Figure 12 is the structure composition schematic diagram of the electronic equipment of the embodiment of the present invention.

Specific implementation mode

The characteristics of in order to more fully hereinafter understand the embodiment of the present invention and technology contents, below in conjunction with the accompanying drawings to this hair The realization of bright embodiment is described in detail, appended attached drawing purposes of discussion only for reference, is not used for limiting the embodiment of the present invention.

Fig. 1 is the flow diagram one of the connection reconstruction cube method of the embodiment of the present invention, as shown in Figure 1, the method packet It includes：

Step 101：Terminal sends first message to base station, and the first message is re-established for asking to be wirelessly connected.

Step 102：The terminal receives the second message that the base station is sent, and the second message is the first message Response message.

Step 103：The terminal sends third message to the base station, and the third message, which is used to indicate, described wirelessly to be connected It connects and re-establishes completion.

In the embodiment of the present invention, the first message, second message and third message meet at least one of：

In the embodiment of the present invention, after the terminal receives the second message, third message is sent to the base station, and And the terminal according to whether carried in the second message it is described instruction information or according to it is described instruction information value, really It is fixed whether in third message to carry at least one of：S-TMSI information, cell identity information, evolution Cell Global Identification Information, the S-TMSI information of preset length, the cell identity information of preset length..

In the embodiment of the present invention, the S-TMSI information or cell identity information of the preset length include the portion of preset length Divide S-TMSI information or partial cell identification information.

In the embodiment of the present invention, terminal first message include the identification information mode include at least it is following it One：

Fig. 2 is the flow diagram two of the connection reconstruction cube method of the embodiment of the present invention, as shown in Fig. 2, the method packet It includes：

Step 201：First network element receives the first message that terminal is sent, and the first message is wirelessly connected weight for asking It establishes；First network element sends second message to the terminal, and the second message is the response message of the first message； First network element receives the third message of the terminal, and the third message is used to indicate the wireless connection and has re-established At.

Step 202：After the first network element triggering wireless connection re-establishes, the 4th message is sent to the second network element, it is described 4th message is used for acquisition request terminal contexts, or for notifying Radio Link Failure.

In the embodiment of the present invention, when the safe un-activation of AS layers of terminal or terminal do not have effective shortMAC-I information When, the method further includes：

In the embodiment of the present invention, the 4th message includes at least one of：New information, existing message；It is described existing Message is one of the following：Radio Link Failure instruction message restores UE context request messages.

In the embodiment of the present invention, the method further includes：

In the embodiment of the present invention, first network element is the base station that terminal is sent to that request wireless connection re-establishes, institute It is the base station that Radio Link Failure occurs for terminal to state the second network element.

Fig. 3 is the flow diagram three of the connection reconstruction cube method of the embodiment of the present invention, as shown in figure 3, the method packet It includes：

Step 301：First network element receives the first message of terminal transmission, and the first message is wirelessly connected weight for asking It establishes.

Step 302：First network element sends the 4th message to the second network element, and the 4th message is used for acquisition request terminal Hereafter, or for notifying Radio Link Failure.

Step 303：First network element receives the 5th message that the second network element is sent.

In the embodiment of the present invention, the 5th message is one of the following：New information, existing message, the existing message are Following one：Switching request message restores UE context request messages.

In the embodiment of the present invention, when the 5th message is the existing message, the 5th message includes being used to indicate Whether mandatory field effectively indicates information.

In the embodiment of the present invention, when the 5th message is switching request message, the first network element also sends the 6th message, 6th message includes at least following information：Old eNB UE X2AP ID、New eNB UE X2AP ID.

In the embodiment of the present invention, the 6th message is one of the following：New message, existing message, the existing message For：Switching request acknowledgement message.

In the embodiment of the present invention, when the 6th message is the existing message, the 6th message includes being used to indicate Whether mandatory field effectively indicates information.

Fig. 4 is the flow diagram four of the connection reconstruction cube method of the embodiment of the present invention, as shown in figure 4, the method packet It includes：

Step 401：First network element sends the 7th message after the second network element gets terminal contexts, to third network element, 7th message is used to ask to establish the first network element the interface path to third network element；Wherein, excellent using control plane when terminal When change mode, the 7th message includes at least following information：eNB UE S1APID、Source MME UE S1AP ID.

In the embodiment of the present invention, the method further includes：

In the embodiment of the present invention, the 7th message is one of the following：It is new message, the first existing message, second existing Message；The first existing message is：Path selection request message, the second existing message are：Initial UE message.

In the embodiment of the present invention, the 8th message is one of the following：It is new message, the first existing message, second existing Message；The first existing message is：Path selection request confirmation message, the second existing message are：Establish connection instruction Message.

In the embodiment of the present invention, when the 7th message is the described first existing message or the second existing message, the 7th Message includes being used to indicate whether mandatory field effectively indicates information.

In the embodiment of the present invention, when the 8th message is the existing message, the 8th message includes being used to indicate Whether mandatory field effectively indicates information.

In the embodiment of the present invention, when the 7th message is initial UE message, extend wireless in the 7th message Reason value field is established, it includes that air interface wirelessly re-establishes reason to make the field；Alternatively, when the 7th message is new By preset field include that air interface wirelessly re-establishes reason in the new message when message.

The scheme of the embodiment of the present invention is described further with reference to concrete application.

Embodiment one

Fig. 5 is the schematic diagram of the embodiment of the present invention one, using AS layers of safe un-activation of terminal of CP optimal ways, thus is not had There is effective shortMAC-I information, terminal re-establishes mark by the S-TMSI filling blocked that length is 16 bits is existing ReestabUE-Identity, and be included in RRC connection re-establishment request messages and be sent to new base station eNB 1, eNB1 is according to this Information, which can be determined more accurately, needs to be sent to context recovery request (RLF INDICATION message or RETRIEVE UE CONTEXT REQUEST message) old eNB.The S-TMSI blocked received can be included in X2 interface context by eNB1 Obtain in request message, or according to it is new re-establish mark construction X2 interface context obtain cell ID in request message, Terminal iidentification, security information.

In Fig. 5 of the embodiment of the present invention, truncated S-TMSI can also be replaced with truncated CellIdentity。

Embodiment two

Fig. 6 is the schematic diagram of the embodiment of the present invention two, using AS layers of safe un-activation of terminal of CP optimal ways, thus is not had There is effective shortMAC-I information, terminal is constructed using the S-TMSI that length is 40 bits and PCI information that length is 9 bits New re-establishes mark new ReestabUE-Identity, alternatively, terminal uses the C-RNTI and length that length is 16 bits New ReestabUE-Identity are identified for new the re-establishing of ECGI information structurings of 34 bits, and are included in RRC connections weight It establishes in request message and is sent to new base station eNB 1, eNB1 can more accurately determine that needs are sent to up and down according to the information The old eNB of literary recovery request (RLF INDICATION message or RETRIEVE UE CONTEXT REQUEST message).ENB1 is also The new mark that re-establishes can be carried in X2 interface context obtains request message, or mark construction X2 is re-established according to new Cell ID, terminal iidentification in interface context acquisition request message, security information.

Embodiment three

Fig. 7 is the schematic diagram of the embodiment of the present invention three, and after eNB1 receives RRC connection re-establishments request, delay triggering X2 connects Mouth context obtains flow.ENB1 the RRC connection re-establishment message for being sent to terminal include one of following instruction information or A combination thereof：S-TMSI information requests indicate that CellIdentity information requests indicate.Terminal receives RRC connection re-establishment message Afterwards, it is completed to carry one or a combination set of following information in message in RRC connection re-establishments according to the instruction information：40 bit S- TMSI information, 28 bit CellIdentity information, is reported to eNB1.ENB1 is according to re-establishing the reconstruction carried in request message The S-TMSI for completing to be carried in message is known and re-established to day-mark, and determination needs to be sent to context recovery request (RLF INDICATION message or RETRIEVE UE CONTEXT REQUEST message) old eNB, according to S-TMSI information, eNB1 can To judge that eNB2 is suitable target BS, and eNB3 is not.

In the embodiment of the present invention, the S-TMSI information of preset length can be the preset length ratio intercepted in S-TMSI It is special.Such as the minimum predetermined length bits of interception S-TMSI, alternatively, the highest preset length bit of interception S-TMSI, alternatively, cutting The middle preset length bits for taking S-TMSI, the S-TMSI information as preset length.Alternatively, the different piece of interception S-TMSI Or several bit combinations of segmentation are at the S-TMSI information of preset length.

The cell identity information of preset length can be the preset length bit intercepted in cell identity information.Such as it intercepts The minimum predetermined length bits of cell identity information, alternatively, the highest preset length bit of interception cell identity information, alternatively, Intercept the middle preset length bits of cell identity information, the cell identity information information as preset length.Alternatively, interception is small The different piece of area's identification information or several bit combinations of segmentation at preset length cell identity information information.

The preset length can be 16 or other length.

The cell identity information is global cell identity, is different from Physical Cell Identifier.

Fig. 8 is the structure composition schematic diagram one of the connection re-establishment device of the embodiment of the present invention, as described in Figure 8, the dress Set including：

Communication unit 81, for sending first message to base station, the first message is re-established for asking to be wirelessly connected； The second message that the base station is sent is received, the second message is the response message of the first message；Send third message To the base station, the third message is used to indicate the wireless connection and re-establishes completion；The first message, second message and Third message meets at least one of：

In the embodiment of the present invention, the communication unit 81 is additionally operable to after receiving the second message, sends third message To the base station, also, whether the terminal is according to carrying the instruction information or according to the instruction in the second message The value of information, it is determined whether carry at least one of in third message：S-TMSI information, cell identity information, evolution Cell Global Identification information, the S-TMSI information of preset length, the cell identity information of preset length..

Fig. 9 is the structure composition schematic diagram two of the connection re-establishment device of the embodiment of the present invention, as described in Figure 9, the dress Set including：

Communication unit 91, the first message for receiving terminal transmission, the first message are wirelessly connected weight for asking It establishes；Second message is sent to the terminal, the second message is the response message of the first message；Receive the terminal Third message, the third message be used to indicate it is described wireless connection re-establish completion；After triggering wireless connection re-establishes, to Second network element sends the 4th message, and the 4th message is used for acquisition request terminal contexts, or for notifying Radio Link Failure；The first message, second message and third message meet at least one of：

In the embodiment of the present invention, when the safe un-activation of AS layers of terminal or terminal do not have effective shortMAC-I information When, communication unit 91, for sending the 4th message to the second network element again after the third message for receiving terminal transmission.

In the embodiment of the present invention, described device further includes：

Determination unit 92, for determining purpose net that the 4th More-Messages-To-Send is sent according to first message or third message Member, the purpose network element are one or more second network elements；

Construction unit 93, for according to the 4th message of first message or third message constructing, the 4th message include with It is at least one lower：Cell ID, terminal iidentification, security information.

Whether indicating unit 94 includes in the third message for passing through second message instruction terminal in third message Identification information.

In the embodiment of the present invention, in the first network element, first network element is that terminal is sent to ask for described device setting It is wirelessly connected the base station re-established, second network element is the base station that Radio Link Failure occurs for terminal.

Figure 10 is the structure composition schematic diagram three of the connection re-establishment device of the embodiment of the present invention, as described in Figure 10, described Device includes：

Communication unit 1001, the first message for receiving terminal transmission, the first message are wirelessly connected for asking It re-establishes；The 4th message is sent to the second network element, the 4th message is used for acquisition request terminal contexts, or for notifying Radio Link Failure；Receive the 5th message of the second network element transmission；

Figure 11 is the structure composition schematic diagram four of the connection re-establishment device of the embodiment of the present invention, as described in Figure 11, described Device includes：

Communication unit 1101 sends the 7th message after getting terminal contexts from the second network element to third network element, 7th message is used to ask to establish the first network element the interface path to third network element；Wherein, excellent using control plane when terminal When change mode, the 7th message includes at least following information：eNB UE S1AP ID、Source MME UE S1AP ID.

In the embodiment of the present invention, the communication unit 1101 is additionally operable to receive the 8th message that third network element is sent, described 8th message is the response message of the 7th message, wherein the 8th message includes at least one of：MME UE S1AP ID、eNB UE S1AP ID。

In the embodiment of the present invention, when the 7th message is initial UE message, extend wireless in the 7th message Reason value field is established, it includes that air interface wirelessly re-establishes reason to make the field；Alternatively, when the 7th message is new By preset field include that air interface wirelessly re-establishes reason in the new information when message.

Figure 12 is the structure composition schematic diagram of the electronic equipment of the embodiment of the present invention, as described in Figure 12, the electronic equipment Including processor 1201 and it is stored with the memory 1202 of 1201 executable instruction of the processor, when described instruction is handled When device 1201 executes,

In the first embodiment, the processor 1201 executes following steps：First message is sent to base station, described the One message is re-established for asking to be wirelessly connected；Receive the second message that the base station is sent, the second message is described the The response message of one message；Third message is sent to the base station, the third message is used to indicate the wireless connection and rebuilds It is vertical to complete；Wherein, the first message includes at least one of：Temporary Mobile Subscriber Identity S-TMSI information, cell ID Information, the Cell Global Identification information of evolution, the S-TMSI information blocked, the cell identity information blocked, cell-radio network Temporary identifier C-RNTI, Physical Cell Identifier, shortMAC-I；The second message includes：Indicating terminal to report S-TMSI letters Breath or cell identity information；The third message includes at least one of：S-TMSI information, cell identity information, evolution Cell Global Identification information, the S-TMSI information blocked, the cell identity information blocked.

In this second embodiment, the processor 1201 executes following steps：Receive the first message of terminal transmission, institute State first message for ask wireless connection re-establish；After triggering wireless connection re-establishes, the 4th message is sent to the second network element, 4th message is used for acquisition request terminal contexts；Wherein, the first message includes at least one of：S-TMSI believes Breath, cell identity information, the Cell Global Identification information of evolution, the S-TMSI information blocked, the cell identity information blocked, C- RNTI, Physical Cell Identifier, shortMAC-I.

In the third embodiment, the processor 1201 executes following steps：Receive the first message of terminal transmission, institute State first message for ask wireless connection re-establish；The 4th message is sent to the second network element, the 4th message is for asking Obtain terminal contexts；The 5th message of the second network element transmission is received, the 5th message is that the response of the 4th message disappears Breath；Wherein, when terminal uses control plane optimal way, the 5th message includes at least following information：Type of message, eNB UE X2AP ID, Target Cell Identifier, GUMMEI, UE contextual information.

In the fourth embodiment, the processor 1201 executes following steps：Terminal or more is got from the second network element Wen Hou sends the 7th message to third network element, and the 7th message is used to ask to establish the first network element the interface to third network element Path；Wherein, when terminal uses CP optimal ways, the 7th message includes at least following information：Type of message, eNB UE S1AP ID, Source MME UE S1AP ID, cell access module, Source MME GUMMEI.

It will be appreciated by those skilled in the art that electronic equipment shown in Figure 12 is able to carry out in any embodiment of the present invention The method and step of connection re-establishment.

If the device of above-mentioned traffic signaling tracking of the embodiment of the present invention realized in the form of software function module and as Independent product sale in use, can also be stored in a computer read/write memory medium.Based on this understanding, Substantially the part that contributes to existing technology can be with the shape of software product in other words for the technical solution of the embodiment of the present invention Formula embodies, which is stored in a storage medium, including some instructions are used so that a calculating Machine equipment (can be personal computer, server or network equipment etc.) executes each embodiment the method for the present invention It is all or part of.And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read Only Memory), the various media that can store program code such as magnetic disc or CD.In this way, the embodiment of the present invention is not limited to appoint What specific hardware and software combines.

Correspondingly, the embodiment of the present invention also provides a kind of computer storage media, wherein it is stored with computer program, the meter Calculation machine program is used to execute the connection reconstruction cube method of the embodiment of the present invention.

It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program Product.Therefore, the shape of hardware embodiment, software implementation or embodiment combining software and hardware aspects can be used in the present invention Formula.Moreover, the present invention can be used can use storage in the computer that one or more wherein includes computer usable program code The form for the computer program product implemented on medium (including but not limited to magnetic disk storage and optical memory etc.).

The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.

These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in a box or multiple boxes.

The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.

Claims

1. a kind of connection reconstruction cube method, which is characterized in that the method includes：

The terminal receives the second message that the base station is sent, and the second message is the response message of the first message；

The terminal sends third message to the base station, and the third message is used to indicate the wireless connection and has re-established At；

The first message, second message and third message meet at least one of：

The first message includes at least one of：Temporary Mobile Subscriber Identity S-TMSI information, cell identity information, evolution Cell Global Identification information, the S-TMSI information of preset length, the cell identity information of preset length, cell-radio network face When mark C-RNTI, Physical Cell Identifier PCI, short medium access control shortMAC-I；The second message includes：Instruction is eventually End reports the instruction information of S-TMSI information or cell identity information；The third message includes at least one of：S-TMSI Information, cell identity information, the Cell Global Identification information of evolution, the S-TMSI information of preset length, the cell of preset length Identification information.

2. connection reconstruction cube method according to claim 1, which is characterized in that the terminal receives the second message Afterwards, third message is sent to the base station, also, whether the terminal is according to carrying the instruction information in the second message Or the value according to the instruction information, it is determined whether carry at least one of in third message：S-TMSI information, cell Identification information, the Cell Global Identification information of evolution, the S-TMSI information of preset length, the cell identity information of preset length.

3. connection reconstruction cube method according to claim 1, which is characterized in that the S-TMSI information of the preset length or Cell identity information includes the part S-TMSI information or partial cell identification information of preset length.

4. connection reconstruction cube method according to claim 1, which is characterized in that terminal includes the knowledge in first message The mode of other information includes at least following one：

Terminal re-establishes mark using C-RNTI information, PCI information and shortMAC-I information structurings；Wherein, shortMAC- I information constructs one of in the following ways：S-TMSI information, the cell identity information of preset length of preset length.

5. a kind of connection reconstruction cube method, which is characterized in that the method includes：

First network element sends second message to the terminal, and the second message is the response message of the first message；

First network element receives the third message of the terminal, and the third message is used to indicate the wireless connection and re-establishes It completes；

After the first network element triggering wireless connection re-establishes, the 4th message is sent to the second network element, the 4th message is used for Acquisition request terminal contexts, or for notifying Radio Link Failure；

The first message, second message and third message meet at least one of：

Wherein, the first message includes at least one of：S-TMSI information, cell identity information, the cell of evolution are global Identification information, the S-TMSI information of preset length, the cell identity information of preset length, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI C- RNTI, Physical Cell Identifier PCI, shortMAC-I；The second message includes：Indicating terminal to report S-TMSI information or cell The instruction information of identification information；The third message includes at least one of：S-TMSI information, cell identity information, evolution Cell Global Identification information, the S-TMSI information of preset length, the cell identity information of preset length.

6. connection reconstruction cube method according to claim 5, which is characterized in that when AS layers of safety of access layer of terminal do not swash When living or terminal does not have effective shortMAC-I information, the method further includes：

7. connection reconstruction cube method according to claim 5, which is characterized in that when the safe un-activation of AS layers of terminal or end When holding no effective shortMAC-I information, the method further includes：

First network element determines the purpose network element that the 4th More-Messages-To-Send is sent, the purpose net according to first message or third message Member is one or more second network elements；

Alternatively, the first network element is according to the 4th message of first message or third message constructing, the 4th message include it is following at least One of：Cell ID, terminal iidentification, security information.

8. connection reconstruction cube method according to claim 5, which is characterized in that the 4th message include it is following at least it One：New information, existing message；The existing message is one of the following：Radio Link Failure instruction message, recovery UE contexts are asked Seek message.

9. connection reconstruction cube method according to claim 5, which is characterized in that the method further includes：

Whether first network element is by second message instruction terminal including the identification in the third message in third message Information.

10. connection reconstruction cube method according to claim 5, which is characterized in that first network element is that terminal is sent out to it Request is sent to be wirelessly connected the base station re-established, second network element is the base station that Radio Link Failure occurs for terminal.

11. a kind of connection reconstruction cube method, which is characterized in that the method includes：

First network element sends the 4th message to the second network element, and the 4th message is used for acquisition request terminal contexts, Huo Zheyong In notice Radio Link Failure；

12. connection reconstruction cube method according to claim 11, which is characterized in that the 5th message is one of the following： New information, existing message, the existing message are one of the following：Switching request message restores UE context request messages.

13. connection reconstruction cube method according to claim 12, which is characterized in that when the 5th message is described existing When message, the 5th message includes being used to indicate whether mandatory field effectively indicates information.

14. connection reconstruction cube method according to claim 13, which is characterized in that when the 5th message is switching request When message, the first network element also sends the 6th message, and the 6th message includes at least following information：Old eNB UE X2AP ID、New eNB UE X2AP ID。

15. connection reconstruction cube method according to claim 14, which is characterized in that the 6th message is one of the following： New message, existing message, the existing message are：Switching request acknowledgement message.

16. connection reconstruction cube method according to claim 15, which is characterized in that when the 6th message is described existing When message, the 6th message includes being used to indicate whether mandatory field effectively indicates information.

17. a kind of connection reconstruction cube method, which is characterized in that the method includes：

First network element sends the 7th message, the 7th message after the second network element gets terminal contexts, to third network element For asking to establish the first network element the interface path to third network element；

18. connection reconstruction cube method according to claim 17, which is characterized in that the method further includes：

First network element receives the 8th message that third network element is sent, and the 8th message is the response message of the 7th message, Wherein, the 8th message includes at least one of：MME UE S1AP ID、eNB UE S1AP ID.

19. connection reconstruction cube method according to claim 17, which is characterized in that the 7th message is one of the following： New message, the first existing message, the second existing message；The first existing message is：Path selection request message, described Two existing message are：Initial UE message.

20. connection reconstruction cube method according to claim 18, which is characterized in that the 8th message is one of the following： New message, the first existing message, the second existing message；The first existing message is：Path selection request confirmation message, institute Stating the second existing message is：Establish connection instruction message.

21. connection reconstruction cube method according to claim 19, which is characterized in that when the 7th message is described first When existing message or the second existing message, the 7th message includes being used to indicate whether mandatory field effectively indicates information.

22. connection reconstruction cube method according to claim 20, which is characterized in that when the 8th message is described existing When message, the 8th message includes being used to indicate whether mandatory field effectively indicates information.

23. connection reconstruction cube method according to claim 19, which is characterized in that when the 7th message disappears for initial UE When breath, extends in the 7th message and wirelessly establish reason value field, it includes that air interface is wirelessly rebuild to make the field Vertical reason；By preset field include air interface in the new message alternatively, when the 7th message is new information Wirelessly re-establish reason.

24. a kind of connection re-establishment device, which is characterized in that described device includes：

Communication unit, for sending first message to base station, the first message is re-established for asking to be wirelessly connected；Receive institute The second message of base station transmission is stated, the second message is the response message of the first message；Third message is sent to described Base station, the third message are used to indicate the wireless connection and re-establish completion；The first message, second message and third disappear Breath meets at least one of：

The first message includes at least one of：Temporary Mobile Subscriber Identity S-TMSI information, cell identity information, evolution Cell Global Identification information, the S-TMSI information of preset length, the cell identity information of preset length, cell-radio network face When mark C-RNTI, Physical Cell Identifier PCI, shortMAC-I；The second message includes：Indicating terminal to report S-TMSI letters The instruction information of breath or cell identity information；The third message includes at least one of：S-TMSI information, cell ID letter Breath, the Cell Global Identification information of evolution, the S-TMSI information of preset length, the cell identity information of preset length.

25. connection re-establishment device according to claim 24, which is characterized in that the communication unit is additionally operable to receive To after the second message, third message is sent to the base station, also, whether the terminal is taken according in the second message With the instruction information or according to the value for indicating information, it is determined whether carry at least one of in third message： S-TMSI information, cell identity information, the Cell Global Identification information of evolution, S-TMSI information, the preset length of preset length Cell identity information..

26. connection re-establishment device according to claim 24, which is characterized in that the S-TMSI information of the preset length Or cell identity information includes the part S-TMSI information or partial cell identification information of preset length.

27. connection re-establishment device according to claim 24, which is characterized in that terminal includes described in first message The mode of identification information includes at least following one：

28. a kind of connection re-establishment device, which is characterized in that described device includes：

Communication unit, the first message for receiving terminal transmission, the first message are re-established for asking to be wirelessly connected；To The terminal sends second message, and the second message is the response message of the first message；Receive the third of the terminal Message, the third message are used to indicate the wireless connection and re-establish completion；After triggering wireless connection re-establishes, to the second net Member sends the 4th message, and the 4th message is used for acquisition request terminal contexts, or for notifying Radio Link Failure；Institute It states first message, second message and third message and meets at least one of：

29. connection re-establishment device according to claim 28, which is characterized in that when terminal the safe un-activation of AS layers or When terminal does not have effective shortMAC-I information, communication unit, for after the third message for receiving terminal transmission again to the Two network elements send the 4th message.

30. connection re-establishment device according to claim 28, which is characterized in that described device further includes：

Determination unit, it is described for determining purpose network element that the 4th More-Messages-To-Send is sent according to first message or third message Purpose network element is one or more second network elements；

Construction unit, for according to the 4th message of first message or third message constructing, the 4th message include it is following at least One of：Cell ID, terminal iidentification, security information.

31. connection re-establishment device according to claim 28, which is characterized in that the 4th message include it is following at least One of：New information, existing message；The existing message is one of the following：Radio Link Failure instruction message restores UE contexts Request message.

32. connection re-establishment device according to claim 28, which is characterized in that described device further includes：

Indicating unit, for whether passing through second message instruction terminal in third message including the identification in the third message Information.

33. connection re-establishment device according to claim 28, which is characterized in that described device is arranged in the first network element, First network element is the base station that terminal is sent to that request wireless connection re-establishes, and second network element is that terminal generation is wireless The base station of link failure.

34. a kind of connection re-establishment device, which is characterized in that described device includes：

Communication unit, the first message for receiving terminal transmission, the first message are re-established for asking to be wirelessly connected；Hair Send the 4th message to the second network element, the 4th message is used for acquisition request terminal contexts, or for notifying Radio Link Failure；Receive the 5th message of the second network element transmission；

35. connection re-establishment device according to claim 34, which is characterized in that the 5th message is one of the following： New information, existing message, the existing message are one of the following：Switching request message restores UE context request messages.

36. the connection re-establishment device according to claim 34 or 35, which is characterized in that when the 5th message is described When existing message, the 5th message includes being used to indicate whether mandatory field effectively indicates information.

37. connection re-establishment device according to claim 36, which is characterized in that when the 5th message is switching request When message, the first network element also sends the 6th message, and the 6th message includes at least following information：Old eNB UE X2AP ID、New eNB UE X2AP ID。

38. according to the connection re-establishment device described in claim 37, which is characterized in that the 6th message is one of the following： New message, existing message, the existing message are：Switching request acknowledgement message.

39. according to the connection re-establishment device described in claim 38, which is characterized in that when the 6th message is described existing When message, the 6th message includes being used to indicate whether mandatory field effectively indicates information.

40. a kind of connection re-establishment device, which is characterized in that described device includes：

Communication unit, after getting terminal contexts from the second network element, to third network element send the 7th message, the described 7th Message is used to ask to establish the first network element the interface path to third network element；Wherein, when terminal uses control plane optimal way, 7th message includes at least following information：eNB UE S1AP ID、Source MME UE S1AP ID.

41. connection re-establishment device according to claim 40, which is characterized in that the communication unit is additionally operable to receive The 8th message that third network element is sent, the 8th message are the response message of the 7th message, wherein the 8th message Including at least one of：MME UE S1AP ID、eNB UE S1AP ID.

42. connection re-establishment device according to claim 40, which is characterized in that the 7th message is one of the following： New message, the first existing message, the second existing message；The first existing message is：Path selection request message, described Two existing message are：Initial UE message.

43. connection re-establishment device according to claim 41, which is characterized in that the 8th message is one of the following： New message, the first existing message, the second existing message；The first existing message is：Path selection request confirmation message, institute Stating the second existing message is：Establish connection instruction message.

44. connection re-establishment device according to claim 42, which is characterized in that when the 7th message is described first When existing message or the second existing message, the 7th message includes being used to indicate whether mandatory field effectively indicates information.

45. connection re-establishment device according to claim 43, which is characterized in that when the 8th message is described existing When message, the 8th message includes being used to indicate whether mandatory field effectively indicates information.

46. connection re-establishment device according to claim 42, which is characterized in that when the 7th message disappears for initial UE When breath, extends in the 7th message and wirelessly establish reason value field, it includes that air interface is wirelessly rebuild to make the field Vertical reason；By preset field include air interface in the new message alternatively, when the 7th message is new information Wirelessly re-establish reason.

47. a kind of electronic equipment, which is characterized in that including processor and be stored with the storage of the processor-executable instruction Device, when described instruction is executed by processor, the processor perform claim requires 1 to 4 any one of them connection re-establishment Method and step.

48. a kind of electronic equipment, which is characterized in that including processor and be stored with the storage of the processor-executable instruction Device, when described instruction is executed by processor, the processor perform claim requires 5 to 10 any one of them connection re-establishments Method and step.

49. a kind of electronic equipment, which is characterized in that including processor and be stored with the storage of the processor-executable instruction Device, when described instruction is executed by processor, the processor perform claim requires 11 to 16 any one of them connection reconstructions Cube method step.

50. a kind of electronic equipment, which is characterized in that including processor and be stored with the storage of the processor-executable instruction Device, when described instruction is executed by processor, the processor perform claim requires 17 to 23 any one of them connection reconstructions Cube method step.