CN106817737B

CN106817737B - A kind of method and device switched over using mobile relay

Info

Publication number: CN106817737B
Application number: CN201611200963.1A
Authority: CN
Inventors: 陈山枝; 时岩; 周洋; 王胡成
Original assignee: Telecommunications Science and Technology Research Institute Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-12-22
Filing date: 2016-12-22
Publication date: 2019-03-08
Anticipated expiration: 2036-12-22
Also published as: CN106817737A

Abstract

The invention discloses a kind of method and devices switched over using mobile relay, comprising: the location information of each relaying and the velocity information of each relaying attachment are obtained by the source base station of switching；When determining that each relaying attachment is in uniform motion according to the velocity information of each relaying attachment, the access information respectively relayed related with switching is sent to the target BS to be switched；The information related with switching that target BS is returned is sent to each relaying related with switching；The serial-number-state transmission message respectively relayed related with switching is sent to target BS；After being connected to the handover success message of target BS, it successively discharges described according to the distance between described each relaying related with switching and speed and switches the related resource respectively relayed, wherein respectively the distance between relaying is determined according to the location information of each relaying.Using the present invention, it is possible to reduce the consumption of switching equipment energy.

Description

A kind of method and device switched over using mobile relay

Technical field

The present invention relates to wireless communication technology field, in particular to a kind of method switched over using mobile relay and dress It sets.

Background technique

Cell switching is in wireless communication, when user equipment be moved to from a cell (coverage area for referring to base station) it is another When a cell, in order to keep the channel switching that do not interrupt communication and need to carry out of mobile subscriber.Cell switching is mobile management Important component.

LTE (Long Term Evolution, long term evolution) is by 3GPP (3rd Generation partnership Project, 3 generation collaborative projects) mainstream standard of 4G standard and Future broadband mobile communication organized to set up.In LTE system In handoff procedure be divided into the following three steps: switching preparation (including measurement filtering, algorithm triggers measurement report), switching is held Row, switching are completed.

Handover measurement is completed by UE (User Equipment user equipment), reports LTE base station i.e. eNodeB (evolved section Point B), switch decision carries out in base station eNodeB, and switching is executed in user terminal UE, base station eNodeB and MME (Mobility Management Entity, mobile management entity) the lower completion of cooperation jointly.Fig. 1 is LTE standard switching flow schematic diagram, is such as schemed Shown in 1, below LTE standard switching flow be introduced.

Step 101: source eNode B measures configuration to UE.

Step 102:UE is measured and is reported according to measuring configuration.

Step 103: source eNode B is switched over and is sentenced according to the handoff algorithms of itself with reference to the measurement reported result of UE Certainly.

Step 104: source eNode B sends switching request message to target eNode B.

Step 105: target eNode B carries out access control according to the information received.

Step 106: while switching request ACK (Acknowledgement, confirmation) message is sent to source eNode B.

Step 107: carrying RRC (Radio Resource Control, the radio resource control of mobility control information System) the connection reconfiguration switching command of setting message generated by target eNode B, UE is passed through by source eNodeB.Source ENodeB carries out necessary encryption and integrity protection to this message.After UE receives the message, the message will be utilized In relevant parameter initiate handoff procedure.

Step 108: source eNode B sends SN (sequence number) state transfer message to target eNode B.Step 109:UE is received To after switching command, execution is synchronous with Target cell, if it is dedicated to be configured with random access in switching command Preamble (leader sequence) code then accesses Target cell using non-competing random access procedure, if do not configured dedicated Preamble code then accesses Target cell using competition random access procedure.UE calculating uses close needed for target eNode B Key and the selected security algorithm used in target eNode B of Configuration network, for after switching successfully with target eNode B It is communicated.

Step 110: network replies ascending resource distribution instruction and timing advance.

Step 111: after UE is successfully accessed Target cell, UE transmission RRC connection reconfiguration, which is set, completes message, to target ENode B confirms that handoff procedure is completed.Target eNode B is set by reception RRC connection reconfiguration and completes message, and confirmation switches to Function.So far, target eNode B can start to send data to UE.

Step 112: target eNode B sends a path switching request information to MME to inform that UE has replaced cell.This When the switching eated dishes without rice or wine be successfully completed.

Step 113:MME sends user plane to S-GW (Serving Gateway, gateway) and updates request message.

Downstream data paths are switched to the side target eNode B by step 114:S-GW.

Step 115:S-GW sends user plane to MME and updates response message.

Step 116:MME is to target eNode B transmitting path convert requests ACK message.

Step 112~116 just completes path integration process, the purpose of the process be by the data path of user plane from Source eNode B goes to target eNode B.

Step 117: target eNode B sends UE context release message, notice source eNode B switching to source eNode B Success and trigger source eNode B resource release.Target eNode B receive the path integration ACK message that is sent back to from MME with After send this message.

Step 118: after receiving UE context release message, source eNode B can with releasing wireless loading and with UE or more The relevant control plane resource of text.Any ongoing data forwarding will continue.

High-speed railway is just being speeded up the construction in the world.It high-speed mobile environment but is had more than typical mobile wireless environment Challenge.The signal decaying that mobile relay can prevent from occurring due to penetration loss is disposed on bullet train.Fig. 2 is 3GPP mark High-speed mobile scene schematic diagram in standard, high-speed mobile scene specified in 3GPP standard are as shown in Figure 2.

After increasing mobile relay RN (Relay node, relay node) ON TRAINS, 3GPP defines mobile relay switching Two kinds of architectural frameworks.The corresponding switching flow of two kinds of architectural frameworks, the switching flow of switching flow and UE described above are big Body is consistent.

The deficiencies in the prior art are: there are multiple relayings, switch perhaps pertain only to one relaying or It is successively to be switched between relaying.

Summary of the invention

The present invention provides a kind of method and device switched over using mobile relay, to there are multiple relayings In the case of, solving the problems, such as multiple relayings, there is no cooperations in switching.

A kind of method switched over using mobile relay is provided in the embodiment of the present invention, comprising:

The location information of each relaying and the velocity information of each relaying attachment are obtained by the source base station of switching；

When determining that each relaying attachment is in uniform motion according to the velocity information of each relaying attachment, will have with switching The access information respectively relayed closed is sent to the target BS to be switched；

The information related with switching that target BS is returned is sent to each relaying related with switching；

The serial-number-state transmission message respectively relayed related with switching is sent to target BS；

After being connected to the handover success message of target BS, according to it is described with switch it is related it is each relaying the distance between with And speed successively discharges the resource respectively relayed related with switching, wherein the distance between each relaying is according to each relaying What location information determined.

Preferably, the location information of each relaying and the velocity information of each relaying attachment are obtained by the source base station switched, It is to be obtained by the measuring configuration process between source base station and each relaying.

Preferably, by with switch the related access information respectively relayed and be sent to the target BS to be switched, be pass through to What the switching request message that target BS is sent carried.

Preferably, the related information with switching that target BS returns is returned by switching request acknowledgement message.

Preferably, determining that head relays when determining that each relaying attachment is in uniform motion, wherein head relaying is in each One in, linear array is respectively relayed, along the traffic direction of each relaying attachment, is relayed headed by first relaying, last A relaying is that tail relays；

Each relaying related with switching are as follows: in each of between head relaying, tail relaying and head relaying and tail relaying After.

Preferably, being relayed headed by the head relaying when the position of all relay nodes is in the coverage area of source base station；

When there is the position of part relay node in the coverage area of source base station and target BS, the head relaying is should Near the relaying of head relaying in the relaying of part.

To the source base station of switching report itself location information and attachment velocity information；

Receive the related information with switching that source base station is sent, wherein the information related with switching is that have with switching The related information with switching respectively relayed closed；

It is successively related each with switching to described according to the distance between described each relaying related with switching and speed Described in the transmission of relaying with switch related information, wherein the distance between each relaying is true according to the location information of each relaying Fixed；

It initiates to switch to the target BS of switching according to the related information of switching related with itself；

Confirm after handover success to target BS and switches successfully.

Preferably, to the source base station of switching report itself location information and attachment velocity information, be by source base What the measuring configuration process between standing and relaying reported.

It is that source base station is determining that each relaying is attached preferably, receiving the relaying of related information with switching that source base station is sent Object when being in uniform motion, determining head relaying, wherein head relaying is one in each relaying, respectively relays linear array, edge The traffic direction of attachment is respectively relayed, is relayed headed by first relaying, the last one relaying is tail relaying；

Receive the related information with switching that relaying is sent, wherein the described and related information of switching is related with switching Respectively relay with switch related information；

Confirm after handover success to target BS and switches successfully.

It is received by the target BS of switching and switches the related access information respectively relayed；

The handover information respectively relayed related with switching is determined according to the access information；

The handover information respectively relayed related with switching is sent to the source base station of switching；

When receiving the switching that relaying is initiated, switching is synchronized；

After receiving all handover success confirmations respectively relayed related with switching, switched to source base station transmission Function message.

Preferably, with the related access information respectively relayed is switched being disappeared by the switching request sent to target BS What breath carried.

It is true by switching request preferably, sending the handover information respectively relayed related with switching to source base station Recognize message transmission.

Preferably, the handover success respectively relayed related with switching confirms, it is the RRC connection sent by each relaying It reconfigures and completes message authentication.

A kind of device switched over using mobile relay is provided in the embodiment of the present invention, comprising:

Trunk information obtains module, obtains the location information of each relaying for the source base station by switching and each relaying adheres to The velocity information of object；

Source base station-target BS sending module, for determining that each relaying is attached according to the velocity information of each relaying attachment Object when being in uniform motion, by with switch the related access information respectively relayed and be sent to the target BS to be switched；

Source base station-relaying sending module, for target BS is returned with switch related information be sent to it is described with Switch related each relaying；

Source base station-target BS sending module, for transmitting the serial-number-state respectively relayed related with switching Message is sent to target BS；

Release module is relayed, for after being connected to the handover success message of target BS, according to described related with switching The distance between each relaying and speed successively discharge the resource respectively relayed related with switching, wherein between each relaying Distance is determined according to the location information of each relaying.

It is further used for preferably, trunk information obtains module through the measuring configuration process between source base station and each relaying Obtain the location information of each relaying and the velocity information of each relaying attachment.

Preferably, source base station-target BS sending module is further used for the switching request by sending to target BS Message, which is carried, is sent to the target BS to be switched after the related access information respectively relayed with switching.

Preferably, source base station-relaying sending module is further used for returning target BS by switching request acknowledgement message The information related with switching returned is sent to each relaying related with switching.

It is further used for when determining that each relaying attachment is in uniform motion, really preferably, trunk information obtains module Determine head relaying, wherein head relaying is one in each relaying, respectively relays linear array, along the traffic direction of each relaying attachment, It is relayed headed by first relaying, the last one relaying is that tail relays；

It is further used for preferably, trunk information obtains module when determining head relaying, in the position of all relay nodes When in the coverage area of source base station, relayed headed by the head relaying；There is the position of part relay node in source base station and mesh When marking in the coverage area of base station, the head relaying is the relaying in the relaying of the part near head relaying.

Trunk information reporting module, for reported to the source base station of switching itself location information and attachment speed letter Breath；

Source base station-relay reception module, for receiving source base station transmission and switching related information, wherein it is described with Switching related information is and switches related information related with switching respectively relaying；

Relaying-relaying sending module, for according to it is described with switch the distance between related each relaying and speed according to It is secondary to it is described with switch described in the related transmission respectively relayed with switch related information, wherein the distance between each relaying is It is determined according to the location information of each relaying；

Switching module, for initiating to switch to the target BS of switching according to the related information of switching related with itself；

Confirmation module is switched successfully for confirming after switching successfully to target BS.

Preferably, trunk information reporting module be further used for by the measuring configuration process between source base station and relaying to The source base station of switching report itself location information and attachment velocity information.

Relaying-relay reception module, the related information with switching sent for receiving relaying, wherein described and switching Related information is and switches related information related with switching respectively relaying；

Target BS-source base station receiving module receives for the target BS by switching and switches related each relaying Access information；

Handover information determining module, for determining the switching respectively relayed related with switching according to the access information Information；

Target BS-source base station sending module, for sending each relaying related with switching to the source base station of switching Handover information；

Switching module is relayed, for synchronizing switching when receiving the switching that relaying is initiated；

Target BS-source base station sending module, for receiving all switchings respectively relayed related with switching After success confirms, is sent to source base station and switch successfully message.

Preferably, target BS-source base station receiving module is further used for the switching request by sending to target BS Message sink and the related access information respectively relayed of switching.

Preferably, target BS-source base station sending module is further used for through switching request acknowledgement message to source base station Send the handover information respectively relayed related with switching.

Preferably, target BS-source base station sending module is further used for setting by the RRC connection reconfiguration that each relaying is sent Complete the related handover success confirmation respectively relayed with switching described in message authentication.

The present invention has the beneficial effect that:

In technical solution provided in an embodiment of the present invention, source base station sends out the access information respectively relayed related with switching Give the target BS to be switched, and target BS is returned and the related information of switching be sent to it is described related with switching Each relaying, finally after being connected to the handover success message of target BS, according to it is described with switch between related each relaying Distance and speed successively discharge the resource respectively relayed related with switching；

For chosen head relay node, according to it is described with switch the distance between related each relaying and speed according to It is secondary to it is described with switch described in the related transmission respectively relayed with switch related information, according to related with itself related switching Information to the target BS of switching initiate switch；And confirms after handover success to target BS and switch successfully.

As for other relay nodes, need to only be sent out according to the related information of switching related with itself to the target BS of switching Play switching；Confirm after handover success to target BS and switches successfully.

As target BS, receiving with switching after the related access information respectively relayed, determination is described to be had with switching The handover information respectively relayed closed；And when receiving with related each switching for relaying initiation is switched, synchronize switching；And After receiving all handover success confirmations respectively relayed related with switching, just switches successfully and disappear to source base station transmission Breath.

As it can be seen that, due to using the switching sequence relationship between each relaying in the handover, only needing to open in scheme Head relay node participates in most of work, completes multiple relayings by head relay node and interacts with the switching of base station, other relayings It only needs to initiate to synchronize to switch over, so reducing the consumption of energy.

Further, since the timing informations of multiple mobile relays can be made full use of, by the extension of signaling, therefore also Accurate and quick switching may be implemented.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:

Fig. 1 is LTE standard switching flow schematic diagram in background technique；

Fig. 2 is the high-speed mobile scene schematic diagram in background technique in 3GPP standard；

Fig. 3 is that cell chain type covers schematic diagram in the embodiment of the present invention；

Fig. 4 is the case where train position is in a cell in embodiment of the present invention schematic diagram；

Fig. 5 is the case where train position is in the neighboring community Liang Ge in embodiment of the present invention schematic diagram；

Fig. 6 is to be illustrated on source base station using the method implementing procedure that mobile relay switches in the embodiment of the present invention Figure；

Fig. 7 is to be illustrated on head relaying using the method implementing procedure that mobile relay switches in the embodiment of the present invention Figure；

Fig. 8 is that the method that the general E-mail relay utilization mobile relay in the embodiment of the present invention other than head relaying switches over is implemented Flow diagram；

Fig. 9 is the method implementation process diagram that target BS is switched over using mobile relay in the embodiment of the present invention；

Figure 10 relays successively switching flow schematic diagram to be each in train relaying group in the embodiment of the present invention；

Figure 11 is the apparatus structure schematic diagram switched over using mobile relay in the embodiment of the present invention in source base station；

Figure 12 is in the embodiment of the present invention in the apparatus structure schematic diagram of head relaying switched over using mobile relay；

Figure 13 is the apparatus structure signal switched over using mobile relay in the embodiment of the present invention on general relaying Figure；

Figure 14 is the apparatus structure schematic diagram switched over using mobile relay in the embodiment of the present invention in target BS；

Figure 15 is the architecture of base station schematic diagram in the embodiment of the present invention as source base station；

Figure 16 is the relay node structural schematic diagram in the embodiment of the present invention as head relaying；

Figure 17 is in the embodiment of the present invention as the relay node structural schematic diagram generally relayed；

Figure 18 is the architecture of base station schematic diagram in the embodiment of the present invention as target BS.

Specific embodiment

Inventor during invention note that

In the prior art when being related to hand-off process, there are following scheme:

1, TD-LTE communication system based on baton handover is switched fast, and is headstock increases main relaying, the tailstock increases Simultaneously relay control unit is added come master backup alternating carrying data flow when realizing switching in backup relays；Active and standby part relaying belongs to two For a different terminals and at the same time being connected with source base station, there is no relay control unit control data flows when switching to pass through in master After forwarding.When switching, main relaying controls backup relays by relay control unit and activates and convert carrying data flow, leads Restore main relay forwarding data flow after the completion of switching.

It 2, is by the multiple movement stations of mobile relay station administration, multiple movement stations using the switching of mobile-relay station It is realized and is switched by mobile relay management station.The transparent transmission of mobile relay management station progress control signaling.Signaling is changed to guarantee backward Compatibility.

Although above two scheme is related to multiple mobile relays, but scheme 1 by window machine controller coordinate main relaying and Backup relays carry user data；Scheme 2 manages multiple mobile-relay stations by mobile relay, realizes the transparent transmission of signaling.

3, switching method and relay node are the switching requests that relay node receives that base station is sent, during switching request includes After carrying configuration information and the corresponding QoS of target access link (Quality of Service, service quality) information of link； RN establishes repeated link carrying according to the carrying configuration information of the repeated link；RN is corresponding according to the target access link QoS information generates the carrying reconfiguration information of target access link, and the carrying reconfiguration information of the target access link is passed through It crosses the base station and is sent to user equipment.Realize switching of the user equipment between relay node and base station.

4, switched using mobile relay, be the measurement of the measurement report and service mobile relay base station using UE, complete UE Cell switching.

Although above two scheme is related to multiple mobile relays, but two schemes be all completed by mobile relay UE and Switching between base station is not related to multiple mobile relays.

The deficiency of aforementioned four scheme is that, there are multiple relayings, is switched or is pertained only in one After, or successively switch between relaying, all there is no the cooperations between multiple relayings.

Based on this, technical solution provided by the invention is mainly solved under high-speed mobile environment, and there are multiple movements on train How relaying, multiple mobile relays pass through the switching that fast accurate is realized in cooperation.With reference to the accompanying drawing to specific reality of the invention The mode of applying is illustrated.

In declarative procedure, first the environment of implementation is illustrated, the Partial Feature being related in implementation is defined, Then it will be illustrated respectively from the implementation of the target BS side of the source base station side of switching, several mobile relay sides and switching, so Afterwards also by the implementation of the scheme provided in the example for providing their cooperation implementations to better understand the invention embodiment.It is such The mode of explanation is not meant to that they must cooperate implementation or must individually implement, in fact, when they are performed separately, It also respectively solves the problems, such as source base station side, several mobile relay sides and target BS side, and when their combined uses, it can obtain Superior technique effect.

In declarative procedure, in order to will more readily understand how implement, mobile relay will specifically by taking vehicle-mounted relaying as an example into Row explanation, for more specific example is the vehicle-mounted relaying installed at the top of the speed train cars, namely the attachment of relaying is Bullet train.

First the environment of implementation is illustrated below.

Fig. 3 is that cell chain type covers schematic diagram, as shown, the base station (eNodeB) of line of high-speed railway usually uses chain Formula deployment, the length of MPS process distance are R.ENodeB coverage distance is general are as follows: R=500m.

Vehicle-mounted relaying is the equipment installed at the top of speed train cars, after interior wireless signal convergence, passes through day Line transmitting.Relaying can prevent the signal decaying occurred due to penetration loss, mostly use this side in current various high-speed rail solutions Case.In embodiment, several vehicle-mounted relayings are installed in bullet train, the information of all vehicle-mounted relayings is stored in each relaying. User equipment in compartment is communicated by relaying.

Vehicle-mounted relaying can obtain train speed information V from train driving system.The speed per hour of EMU or high-speed rail train It may be 200km/h, 250km/h, 300km/h, 380km/h.After vehicle is completed to accelerate, high-speed smooth can be entered and run rank Section.During high-speed smooth operation, the speed of vehicle is in section [V- δ, V+ δ], and δ can be set according to actual needs and train The value of speed per hour V compares the value very little of δ.It should be noted that the uniform motion in the application refers to [V- δ, V+ δ], it is not necessarily referring to absolutely Pair at the uniform velocity V because be not easy to occur in practice it is such absolutely at the uniform velocity, this be skilled addressee readily understands that. Vehicle-mounted relaying can obtain itself position by equipment such as GPS (Global Positioning System, global positioning system) It sets.

By taking Harmony type EMU as an example, the long 25m of each compartment, totally 8 section marshaling, total length are about 200m to full column. 400m is always about in addition, generalling use two groups and joining mode again and run.Multiple relayings are uniformly placed on train.According to train operation side To centering after being numbered.It is successively named as relaying 1 from front to back, relaying 2 relays 3 ..., relay N.The distance between relaying Equal is L, can be communicated by wireless or wired mode between relaying.It is readily appreciated that, when there are several RN, RN is carried out Number is common approach and a kind of easy-to-handle mode in specific implementation, it will be readily apparent to those skilled in the art that By each relaying linear array, the relaying (namely relaying 1) headed by the traffic direction of each relaying attachment, first relaying, finally One relaying is tail relaying (namely relaying N).

Fig. 4 is the case where train position is in cell schematic diagram, and Fig. 5 is that train position is in the neighboring community Liang Ge Situation schematic diagram, only one cell of each base station in figure.Due to the relationship of train length and MPS process distance, on train Multiple relayings are likely distributed in cell (the cell A of base station A, as shown in Figure 4) or continuous two cells (according to train The direction of advance is successively named as the cell A of base station A, the cell B of base station B from back to front, as shown in Figure 5).

For ease of description, " head relay node (referred to as: head relaying) " will be defined in implementing, refers to and need to carry out in switching Measuring configuration simultaneously assists other relayings to complete the relay node switched.After train enters the stage of steady high-speed cruising, head is carried out The selection of relay node.

(1) if train enters the steady high-speed cruising stage, the position of all relay nodes is in the same base on train In the coverage area stood, then head relay selection is relaying 1.

(2) it if train enters the steady high-speed cruising stage, is covered positioned at base station A and base station B two continuous small Area.According to geographical location information and signal quality, chooses in switching band (region that two base stations cover simultaneously) and number is most Small relaying is as head relay node.In head relay selection for the first time, relaying i (i ∈ [2, N]) subsequent relay may be chosen Quantity is N-i.If relaying N is selected as a relay node, itself completes switching.The head relay selection of subsequent switching is relaying 1。

That is, when determining that each relaying attachment is in uniform motion, determining that head relays, wherein head, which relays, is in implementing One in each relaying, linear array is respectively relayed, along the traffic direction of each relaying attachment, is relayed headed by first relaying, most The latter relaying is that tail relays；

In specific implementation, when the position of all relay nodes is in the coverage area of source base station, headed by the head relaying Relaying；

In implementation, by source base station is defined as: the current place cell base station of head relay node, target BS is defined as: head The handover-target base station of relay node, usually along next base station of train operation ahead source base station.

The scheme implemented in each equipment involved in handoff procedure is illustrated below.

Fig. 6 is the method implementation process diagram switched on source base station using mobile relay, as shown, can be with Include:

The velocity information of step 601, the location information that each relaying is obtained by the source base station of switching and each relaying attachment；

Step 602, according to it is each relaying attachment velocity information determine that each relaying attachment is in uniform motion when, general The target BS to be switched is sent to the related access information respectively relayed is switched；

Step 603, the information related with switching for returning to target BS are sent to each relaying related with switching；

The serial-number-state transmission message respectively relayed related with switching is sent to target BS by step 604；

Step 605, after being connected to the handover success message of target BS, according to it is described with switch between related each relaying Distance and speed successively discharge it is described with switch the related resource respectively relayed, wherein the distance between each relaying is basis What the location information respectively relayed determined.

Specifically, relaying is likely to be at the cell of two base stations covering when train accelerates to the even running stage.Also It is to require to determine the whether steady high-speed cruising of train there are two base station.So at least first relaying and tail relaying need report speed Information.In head relay selection for the first time, any one relaying may be selected.So all RN will report position to believe Breath.

In specific implementation, then vehicle-mounted relaying can be reported in train control system acquisition speed.It can also be direct with base station It tests the speed, but possible inaccuracy affected by environment, therefore it is more appropriate to directly acquire speed.

In implementation, the location information of each relaying and the velocity information of each relaying attachment are obtained by the source base station of switching, It is to be obtained by the measuring configuration process between source base station and each relaying.

In implementation, by with switch the related access information respectively relayed and be sent to the target BS to be switched, be pass through to What the switching request message that target BS is sent carried.

In implementation, the related information with switching that target BS returns is returned by switching request acknowledgement message.

Fig. 7 is the method implementation process diagram that is switched over using mobile relay on head relaying, as shown, can be with Include:

Step 701, to the source base station of switching report itself location information and attachment velocity information；

Step 702, receive that source base station sends with switch related information, wherein the information related with switching is The related information related with switching respectively relaying with switching；

The distance between described each relaying related with switching of step 703, basis and speed are successively to described and switching Described in the related transmission respectively relayed with switch related information, wherein the distance between each relaying is the position according to each relaying Confidence breath determination；

Step 704 is initiated to switch according to the related information of switching related with itself to the target BS of switching；

Step 705 switches successfully after switching successfully to target BS confirmation.

In implementation, to the source base station of switching report itself location information and attachment velocity information, be by source base What the measuring configuration process between standing and relaying reported.

In implementation, the modes such as whether head relaying can extend according to the switching command of base station, to judge whether oneself is chosen For head relay node.It can also be determined by increasing the modes such as flag bit in switching command.

Fig. 8 is the method implementation process diagram that the general E-mail relay utilization mobile relay other than head relaying switches over, such as Shown in figure, may include:

Step 801, to the source base station of switching report itself location information and attachment velocity information；

Step 802, receive that relaying sends with switch related information, wherein it is described with switch related information be with Switch related information related with switching respectively relaying；

Step 803 is initiated to switch according to the related information of switching related with itself to the target BS of switching；

Step 804 switches successfully after switching successfully to target BS confirmation.

Fig. 9 is the method implementation process diagram that target BS is switched over using mobile relay, as shown, can wrap It includes:

Step 901 receives by the target BS of switching and switches the related access information respectively relayed；

Step 902 determines the handover information respectively relayed related with switching according to the access information；

Step 903 sends the handover information respectively relayed related with switching to the source base station of switching；

Step 904, receive relaying initiate switching when, synchronize switching；

Step 905, receive it is all it is described with switch the related handover success confirmation respectively relayed after, sent out to source base station Send handover success message.

In implementation, the related access information respectively relayed, is disappeared by the switching request sent to target BS with switching What breath carried.

In implementation, the handover information respectively relayed related with switching is sent to source base station, is true by switching request Recognize message transmission.

In implementation, it is the RRC connection sent by each relaying that the handover success respectively relayed related with switching, which confirms, It reconfigures and completes message authentication.

Specifically, there are three steps for handoff procedure: switching prepares, switching executes, switching is completed.In the measuring configuration stage, The content of measurement report includes: measurement ID, the measurement result of serving cell, the measurement result of adjacent cell.In implementation, match in measurement The stage is set, train speed information V and intermediate position information can be increased in measurement report.In handover execution stage, by right The extension of switching request message, target BS can allocate the resource of all vehicle-mounted relayings in advance, guarantee all relayings Handover success rate.

Subsequent relay foundation and the sequential relationship of head relay node complete switching.Only need head relay node measurement result and Handoff algorithms complete the switching between subsequent multiple relayings and base station.

It is illustrated below with example.

Figure 10 relays successively switching flow schematic diagram to be each in train relaying group, as shown, specifically including that

Step 1001, source base station are set message (RRC_CONN_RECFG) by RRC connection reconfiguration and are saved to all vehicle-mounted relayings Point carries out measuring configuration.

In specific implementation, RRC reconfiguration message can be extended, be increased wherein to intermediate position, train speed V Configuration.

A relay node can be selected after having the selection of a relay node, train to enter high-speed smooth in step 1003, is selected Before head relay node (boost phase and quiescent phase), all vehicle-mounted relayings can be reported.Foundation reports information to make head relaying The selection of node.

Head relay node can be only needed to measure configuration after into the high-speed smooth operation phase.

Step 1002, all vehicle-mounted relay nodes are measured and are reported according to measuring configuration.

In specific implementation, measurement reporting message is according to measuring configuration message respective extension.

A relay node can be selected after having the selection of a relay node, train to enter high-speed smooth in step 1003, is selected Before head relay node (boost phase and quiescent phase), need all vehicle-mounted relayings that can report.Foundation reports information to do head The selection of relay node.

Step 1003, source base station are switched over according to the measurement reported result of relay node according to the handoff algorithms of itself Judgement.

In specific implementation, measurement reported result of the source base station according to relay node judges whether train enters steady high speed Operation phase (V ∈ [V- δ, V+ δ])；If so, source base station selects head relay node i according to the upper mode, relaying i+ is closed 1 to relaying N measuring configuration；It is no, the measuring configuration of all relayings is opened, is switched according to LTE standard process.

Step 1004, source base station send switching request (Handover Request) message to target BS.

In specific implementation, switching request message mainly carries the business information and other access layer information (examples of vehicle-mounted relaying It is such as used to encrypt, integrality, the information of measurement).Handover request can also be extended to comprising N-i+1 relaying (i be head relaying section Point number) switching request message.

Before corresponding resource, the dedicated random access (Preamble) of distribution are reserved in step 1005, target BS access control Leading code etc..

In specific implementation, after target BS receives switching request message, the business information that can be carried according to it carries out wireless Resource distribution.Switching request acknowledgement message (Handover Request ACK) is concurrently returned, switching request acknowledgement message is expanded It include N-i+1 dedicated random access lead codes and some other parameters after exhibition.Vehicle-mounted relaying can be used to be connect at random Enter lead code intervention Target cell.

Step 1006, target BS send the switching request acknowledgement message by extension to source base station.

Step 1007, by the switching command of target BS generation, (the RRC connection reconfiguration for carrying mobility control information is set Message), a relay node is passed through by source base station.

In specific implementation, after head relay node receives the message, it will be initiated using the relevant parameter in the message Handoff procedure.Switching command is extended the switching command comprising N-i+1 vehicle-mounted relayings.

Step 1008, head relay node withTime interval the switching of extension is carried to subsequent relay forwarding Order.

Wherein, L is the distance between relaying, can be calculated by the geographical location information of relaying,For measurement report The mean value of train speed in announcement.

Step 1009, source base station transmit Sequence Number (SN) state transfer message to target BS.

In specific implementation, the effect of serial-number-state transmission message is the SN information and HFN (Hyper relaying in source Frame Number, Hyper Frame Number) information informing target side, it is retransmitted for data and cryptographic integrity is protected.To serial-number-state Serial-number-state transmission message comprising N-i+1 relaying after transmission message is extended.

After step 1010, head relay node receive switching command, execute synchronous with Target cell.

In specific implementation, it is configured with random access dedicated preamble in switching command, uses non-competing random access stream Journey accesses Target cell.

Step 1011, vehicle-mounted relaying i to N can be received a relay node forwarding with the timing of Δ t and carry mobility control The RRC connection reconfiguration of information sets message, chronologically executes synchronous with Target cell.

Step 1012, target BS reply ascending resource distribution instruction and timing advance to head relay node.

Step 1013, target BS can be received vehicle-mounted relaying i to N with the timing of Δ t and synchronized, and reply corresponding ascending resource Distribution instruction and timing advance message.

Step 1014, after head relay node is successfully accessed Target cell, head relay node send RRC connection reconfiguration set At message, completed to target BS confirmation handoff procedure.Target BS is set by reception RRC connection reconfiguration and completes message, confirms It switches successfully.

Step 1015, vehicle-mounted relaying i to N, which can successively send RRC connection reconfiguration with the timing of Δ t and set, completes message, confirms It switches successfully.

Path integration is completed between step 1016, target BS and MME.

User plane is completed between step 1017, MME and S-GW to update.

Step 1018, target BS send vehicle-mounted relaying context resource release message to source base station, and notice source base station is cut It changes function into, and triggers the resource of source base station release head relay node.

In specific implementation, context release message is that the context release of N-i+1 vehicle-mounted relayings after being extended disappears Breath.Source base station handles message with the time interval of Δ t and discharges the relevant resource of vehicle-mounted relaying.

Based on the same inventive concept, a kind of dress switched over using mobile relay is additionally provided in the embodiment of the present invention It sets, since the principle that these devices solve the problems, such as is similar to a kind of method switched over using mobile relay, these dresses The implementation set may refer to the implementation of method, and overlaps will not be repeated.

Figure 11 is the apparatus structure schematic diagram switched over using mobile relay in source base station, as shown, can wrap It includes:

Trunk information obtains module 1101, and the location information and each relaying of each relaying are obtained for the source base station by switching The velocity information of attachment；

Source base station-target BS sending module 1102, for being determined in each according to the velocity information of each relaying attachment When attachment is in uniform motion, the access information respectively relayed related with switching is sent to the target BS to be switched；

Source base station-relaying sending module 1103, the related information with switching for returning to target BS are sent to institute It states and switches related each relaying；

Source base station-target BS sending module 1102, for by it is described with switch the related serial-number-state respectively relayed Transmission message is sent to target BS；

Release module 1104 is relayed, for having according to described with switching after being connected to the handover success message of target BS The distance between each relaying closed and speed successively discharge the resource respectively relayed related with switching, wherein in each followed by Between distance be according to the location information of each relaying determine.

In implementation, trunk information obtains module and is further used for through the measuring configuration process between source base station and each relaying Obtain the location information of each relaying and the velocity information of each relaying attachment.

In implementation, source base station-target BS sending module is further used for the switching request by sending to target BS Message, which is carried, is sent to the target BS to be switched after the related access information respectively relayed with switching.

In implementation, source base station-relaying sending module is further used for returning target BS by switching request acknowledgement message The information related with switching returned is sent to each relaying related with switching.

In implementation, trunk information obtains module and is further used for when determining that each relaying attachment is in uniform motion, really Determine head relaying, wherein head relaying is one in each relaying, respectively relays linear array, along the traffic direction of each relaying attachment, It is relayed headed by first relaying, the last one relaying is that tail relays；

In implementation, trunk information obtains module and is further used for when determining head relaying, in the position of all relay nodes When in the coverage area of source base station, relayed headed by the head relaying；There is the position of part relay node in source base station and mesh When marking in the coverage area of base station, the head relaying is the relaying in the relaying of the part near head relaying.

Figure 12 is the apparatus structure schematic diagram switched over using mobile relay relayed in head, as shown, can wrap It includes:

Trunk information reporting module 1201, for reported to the source base station of switching itself location information and attachment speed Spend information；

Source base station-relay reception module 1202, for receiving the related information with switching of source base station transmission, wherein institute State with switch related information be and switching it is related it is respectively relaying with switch related information；

Relaying-relaying sending module 1203, for according to the distance between described each relaying related with switching and speed Degree successively to it is described with switch described in the related transmission respectively relayed with switch related information, wherein between each relaying away from From be according to the location information of each relaying determine；

Switching module 1204, for being cut according to the related information of switching related with itself to the initiation of the target BS of switching It changes；

Confirmation module 1205 is switched successfully for confirming after switching successfully to target BS.

In implementation, trunk information reporting module be further used for by the measuring configuration process between source base station and relaying to The source base station of switching report itself location information and attachment velocity information.

In implementation, the relaying of related information with switching that source base station is sent is received, is that source base station is determining that each relaying is attached Object when being in uniform motion, determining head relaying, wherein head relaying is one in each relaying, respectively relays linear array, edge The traffic direction of attachment is respectively relayed, is relayed headed by first relaying, the last one relaying is tail relaying；

In implementation, when the position of all relay nodes is in the coverage area of source base station, relayed headed by the head relaying；

Figure 13 is the apparatus structure schematic diagram switched over using mobile relay on general relaying, as shown, can To include:

Trunk information reporting module 1301, for reported to the source base station of switching itself location information and attachment speed Spend information；

Relaying-relay reception module 1302, for receiving that relaying sends and switching related information, wherein it is described with Switching related information is and switches related information related with switching respectively relaying；

Switching module 1303, for being cut according to the related information of switching related with itself to the initiation of the target BS of switching It changes；

Confirmation module 1304 is switched successfully for confirming after switching successfully to target BS.

Figure 14 is the apparatus structure schematic diagram switched over using mobile relay in target BS, as shown, can be with Include:

Target BS-source base station receiving module 1401 receives related each with switching for the target BS by switching The access information of relaying；

Handover information determining module 1402 described related is respectively relayed with switching for being determined according to the access information Handover information；

Target BS-source base station sending module 1403, it is described related each with switching for being sent to the source base station of switching The handover information of relaying；

Switching module 1404 is relayed, for synchronizing switching when receiving the switching that relaying is initiated；

Target BS-source base station sending module 1403, for receiving all described related respectively relay with switching After switching successfully confirmation, is sent to source base station and switch successfully message.

In implementation, target BS-source base station receiving module is further used for the switching request by sending to target BS Message sink and the related access information respectively relayed of switching.

In implementation, target BS-source base station sending module is further used for through switching request acknowledgement message to source base station Send the handover information respectively relayed related with switching.

In implementation, target BS-source base station sending module is further used for setting by the RRC connection reconfiguration that each relaying is sent Complete the related handover success confirmation respectively relayed with switching described in message authentication.

For convenience of description, each section of apparatus described above is divided into various modules with function or unit describes respectively. Certainly, each module or the function of unit can be realized in same or multiple softwares or hardware in carrying out the present invention.

When implementing technical solution provided in an embodiment of the present invention, can implement as follows.

Figure 15 is the architecture of base station schematic diagram as source base station, as shown, including: in base station

Processor 1500 executes following process for reading the program in memory 1520:

After being connected to the handover success message of target BS, according to it is described with switch it is related it is each relaying the distance between with And speed successively discharges the resource respectively relayed related with switching, wherein the distance between each relaying is according to each relaying What location information determined；

Transceiver 1510 executes following process for sending and receiving data under the control of processor 1500:

The serial-number-state transmission message respectively relayed related with switching is sent to target BS.

In implementation, when determining that each relaying attachment is in uniform motion, determine that head relays, wherein head relaying is in each One in, linear array is respectively relayed, along the traffic direction of each relaying attachment, is relayed headed by first relaying, last A relaying is that tail relays；

Wherein, in Figure 15, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor The various circuits for the memory that 1500 one or more processors represented and memory 1520 represent link together.Total coil holder Structure can also link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, this It is all a bit it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 1510 can be multiple element, that is, include transmitter and transceiver, provide for logical with various other devices over a transmission medium The unit of letter.Processor 1500 is responsible for management bus architecture and common processing, memory 1520 can store processor 1500 The used data when executing operation.

Figure 16 is the relay node structural schematic diagram relayed as head, as shown, RN includes:

Processor 1600 executes following process for reading the program in memory 1620:

It is needed to carry out data processing according to transceiver；

Transceiver 1610 executes following process for sending and receiving data under the control of processor 1600:

Confirm after handover success to target BS and switches successfully.

Wherein, in Figure 16, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor The various circuits for the memory that 1600 one or more processors represented and memory 1620 represent link together.Total coil holder Structure can also link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, this It is all a bit it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 1610 can be multiple element, that is, include transmitter and transceiver, provide for logical with various other devices over a transmission medium The unit of letter.Processor 1600 is responsible for management bus architecture and common processing, memory 1620 can store processor 1600 The used data when executing operation.

Figure 17 is as the relay node structural schematic diagram generally relayed, as shown, RN includes:

Processor 1700 executes following process for reading the program in memory 1720:

It is needed to carry out data processing according to transceiver；

Transceiver 1710 executes following process for sending and receiving data under the control of processor 1700:

Confirm after handover success to target BS and switches successfully.

Wherein, in Figure 17, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor The various circuits for the memory that 1700 one or more processors represented and memory 1720 represent link together.Total coil holder Structure can also link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, this It is all a bit it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 1710 can be multiple element, that is, include transmitter and transceiver, provide for logical with various other devices over a transmission medium The unit of letter.Processor 1700 is responsible for management bus architecture and common processing, memory 1720 can store processor 1700 The used data when executing operation.

Figure 18 is the architecture of base station schematic diagram as target BS, as shown, including: in base station

Processor 1800 executes following process for reading the program in memory 1820:

Transceiver 1810 executes following process for sending and receiving data under the control of processor 1800:

Wherein, in Figure 18, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor The various circuits for the memory that 1800 one or more processors represented and memory 1820 represent link together.Total coil holder Structure can also link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, this It is all a bit it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 1810 can be multiple element, that is, include transmitter and transceiver, provide for logical with various other devices over a transmission medium The unit of letter.Processor 1800 is responsible for management bus architecture and common processing, memory 1820 can store processor 1800 The used data when executing operation.

In conclusion providing in the embodiment of the present invention based on timing (the hand-off process scheme of Δ t).

It further additionally provides the selection of a relay node and closes the cooperation handover scheme of subsequent relay.

In the scheme provided in embodiments of the present invention, a relay node only need to be opened, other relayings are closed.By and head Relay node completes the switching of multiple relayings and base station.Because only opening a relay point, reduce the consumption of energy.

The timing information for making full use of multiple mobile relays is realized and precisely and is quickly switched by the extension of signaling.

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

The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

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

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

Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims

1. a kind of method switched over using mobile relay characterized by comprising

It, will be related with switching when determining that each relaying attachment is in uniform motion according to the velocity information of each relaying attachment The access information respectively relayed is sent to the target BS to be switched；

The serial-number-state transmission message respectively relayed related with switching is sent to target BS, it is described related with switching Each relaying be N number of relaying in a series of relayings on relaying attachment, wherein first relaying is relaying i, and relaying i is It needs to measure configuration in switching and other relayings is assisted to complete the relay node switched；

After being connected to the handover success message of target BS, according to the distance between described each relaying related with switching and speed Successively release is described and switches the related resource respectively relayed for degree, wherein the distance between each relaying is the position according to each relaying What information determined.

2. the method as described in claim 1, which is characterized in that by the source base station of switching obtain each relaying location information and The velocity information of each relaying attachment is obtained by the measuring configuration process between source base station and each relaying.

3. the method as described in claim 1, which is characterized in that the access information respectively relayed related with switching is sent to desire The target BS of switching is carried by the switching request message sent to target BS.

4. the method as described in claim 1, which is characterized in that the related information with switching that target BS returns is by cutting Change the return of request confirmation message.

5. the method as described in Claims 1-4 is any, which is characterized in that determining that each relaying attachment is in uniform motion When, determine that head relays, wherein head relaying is one in each relaying, respectively relays linear array, along the operation of each relaying attachment Direction, first relaying headed by relay, the last one relaying be tail relay；

Each relaying related with switching are as follows: each relaying between head relaying, tail relaying and head relaying and tail relaying.

6. method as claimed in claim 5, which is characterized in that the position of all relay nodes source base station coverage area When interior, relayed headed by the head relaying；

When there is the position of part relay node in the coverage area of source base station and target BS, the head relaying is the part Near the relaying of head relaying in relaying.

7. a kind of method switched over using mobile relay characterized by comprising

Receive the related information with switching that source base station is sent, wherein the information related with switching is related with switching The related information with switching respectively relayed, each relaying related with switching is in a series of relayings relayed on attachment N number of relaying, wherein first relaying is relaying i, and relaying i is to need to measure configuration in switching and assist other relayings Complete the relay node of switching；

According to the distance between described each relaying related with switching and speed successively to each relaying related with switching Transmission described in switch related information, wherein the distance between each relaying is determined according to the location information of each relaying；

Confirm after handover success to target BS and switches successfully.

8. the method for claim 7, which is characterized in that report itself location information and attachment to the source base station of switching The velocity information of object is reported by the measuring configuration process between source base station and relaying.

9. method a method as claimed in any one of claims 7 to 8, which is characterized in that receive the related letter with switching that source base station is sent The relaying of breath is source base station when determining that each relaying attachment is in uniform motion, determining head relaying, wherein head, which relays, is One in each relaying, linear array is respectively relayed, along the traffic direction of each relaying attachment, is relayed headed by first relaying, most The latter relaying is that tail relays；

10. method as claimed in claim 9, which is characterized in that the position of all relay nodes source base station covering model When enclosing interior, relayed headed by the head relaying；

11. a kind of method switched over using mobile relay characterized by comprising

Reception relays the related information with switching sent, wherein the information related with switching is related each with switching The related information with switching of relaying, which is and switches one in related each relaying, described related each with switching Relaying is N number of relaying in a series of relayings on relaying attachment, wherein first relaying is relaying i, and relaying i is to cut It needs to measure configuration when changing and other relayings is assisted to complete the relay node switched；

Confirm after handover success to target BS and switches successfully.

12. method as claimed in claim 11, which is characterized in that report the location information and attached of itself to the source base station of switching The velocity information of object, be to be reported by the measuring configuration process between source base station and relaying.

13. a kind of method switched over using mobile relay characterized by comprising

It is received by the target BS of switching and switches the related access information respectively relayed, each relaying related with switching For N number of relaying in a series of relayings on relaying attachment, wherein first relaying is relaying i, and relaying i is in switching It needs to measure configuration and other relayings is assisted to complete the relay node switched；

When receiving the switching that relaying is initiated, switching is synchronized, which is and switches one in related each relaying；

After receiving all handover success confirmations respectively relayed related with switching, switches successfully and disappear to source base station transmission Breath.

14. method as claimed in claim 13, which is characterized in that the related access information respectively relayed with switching, is to pass through What the switching request message sent to target BS carried.

15. method as claimed in claim 13, which is characterized in that send and described related respectively relay with switching to source base station Handover information is sent by switching request acknowledgement message.

16. method as claimed in claim 13, which is characterized in that the handover success respectively relayed related with switching is true Recognize, is that the radio resource control RRC connection reconfiguration sent by each relaying completes message authentication.

17. a kind of device switched over using mobile relay characterized by comprising

Trunk information obtains module, for obtaining the location information of each relaying by the source base station of switching and respectively relaying attachment Velocity information；

Source base station-target BS sending module, for determining each relaying attachment according to the velocity information of each relaying attachment When in uniform motion, the access information respectively relayed related with switching is sent to the target BS to be switched；

Source base station-relaying sending module, the related information with switching for returning to target BS are sent to described and switching Related each relaying；

Source base station-target BS sending module, for the serial-number-state respectively relayed related with switching to be transmitted message It is sent to target BS, each relaying related with switching is N number of relaying in a series of relayings on relaying attachment, In, first relaying is relaying i, and relaying i is to need to measure configuration in switching and other relayings is assisted to complete switching Relay node；

Relay release module, for after being connected to the handover success message of target BS, according to it is described with switch it is related it is each in After the distance between and speed successively discharge it is described with switch the related resource respectively relayed, wherein the distance between each relaying It is to be determined according to the location information of each relaying.

18. device as claimed in claim 17, which is characterized in that trunk information obtains module and is further used for passing through source base station Measuring configuration process between each relaying obtains the location information of each relaying and the velocity information of each relaying attachment.

19. device as claimed in claim 17, which is characterized in that source base station-target BS sending module is further used for leading to It crosses to carry to be sent to after the related access information respectively relayed with switching to the switching request message that target BS is sent and is intended to switch Target BS.

20. device as claimed in claim 17, which is characterized in that source base station-relaying sending module is further used for target The information related with switching that base station is returned by switching request acknowledgement message is sent to each relaying related with switching.

21. the device as described in claim 17 to 20 is any, which is characterized in that trunk information obtains module and is further used for When determining that each relaying attachment is in uniform motion, determine that head relays, wherein head relaying is one in each relaying, each to relay Linear array relays headed by first relaying along the traffic direction of each relaying attachment, the last one relaying is that tail relays；

22. device as claimed in claim 21, which is characterized in that trunk information obtains module and is further used in determining head After when, when the position of all relay nodes is in the coverage area of source base station, relayed headed by head relaying；In having part When the position of node is in the coverage area of source base station and target BS, the head relaying is in the relaying of the part near head The relaying of relaying.

23. a kind of device switched over using mobile relay characterized by comprising

Trunk information reporting module, for reported to the source base station of switching itself location information and attachment velocity information；

Source base station-relay reception module, for receiving the related information with switching of source base station transmission, wherein described and switching Related information is related information related with switching respectively relaying with switching, and each relaying related with switching is to relay A series of N number of relaying in relayings on attachment, wherein first relaying for relaying i, relaying i be switching when need into Row measuring configuration simultaneously assists other relayings to complete the relay node switched；

Relaying-relaying sending module, for according to it is described with switch the distance between related each relaying and speed successively to It is described with switch described in the related transmission respectively relayed with switch related information, wherein the distance between each relaying is basis What the location information respectively relayed determined；

24. device as claimed in claim 23, which is characterized in that trunk information reporting module is further used for passing through source base station Measuring configuration process between relaying to the source base station of switching report itself location information and attachment velocity information.

25. the device as described in claim 23 to 24 is any, which is characterized in that receive the related with switching of source base station transmission The relaying of information is source base station when determining that each relaying attachment is in uniform motion, determining head relaying, wherein head relaying It is one in each relaying, respectively relays linear array, along the traffic direction of each relaying attachment, is relayed headed by first relaying, The last one relaying is that tail relays；

26. device as claimed in claim 25, which is characterized in that the position of all relay nodes source base station covering model When enclosing interior, relayed headed by the head relaying；

27. a kind of device switched over using mobile relay characterized by comprising

Relaying-relay reception module, the related information with switching sent for receiving relaying, wherein described related with switching Information be and switching it is related it is respectively relaying with switch related information, the relaying be with switch in related each relaying one A, each relaying related with switching is N number of relaying in a series of relayings on relaying attachment, wherein in first After to relay i, relaying i is the relay node for needing to measure configuration in switching and assisting other relaying completion switchings；

28. device as claimed in claim 27, which is characterized in that trunk information reporting module is further used for passing through source base station Measuring configuration process between relaying to the source base station of switching report itself location information and attachment velocity information.

29. a kind of device switched over using mobile relay characterized by comprising

Target BS-source base station receiving module, for by switching target BS receive with switching it is related respectively relay connect Enter information, each relaying related with switching is N number of relaying in a series of relayings on relaying attachment, wherein first A relaying is relaying i, and relaying i is the relaying section for needing to measure configuration in switching and other relayings being assisted to complete switching Point；

Handover information determining module, for determining that the switching respectively relayed related with switching is believed according to the access information Breath；

Target BS-source base station sending module, for the source base station of switching send it is described with switching it is related respectively relay cut Change information；

Switching module is relayed, for synchronizing switching, which is related with switching when receiving the switching that relaying is initiated Each relaying in one；

Target BS-source base station sending module, for receiving all handover success respectively relayed related with switching After confirmation, is sent to source base station and switch successfully message.

30. device as claimed in claim 29, which is characterized in that target BS-source base station receiving module is further used for leading to It crosses the switching request message sink sent to target BS and switches the related access information respectively relayed.

31. device as claimed in claim 29, which is characterized in that target BS-source base station sending module is further used for leading to It crosses switching request acknowledgement message and sends the handover information respectively relayed related with switching to source base station.

32. device as claimed in claim 29, which is characterized in that target BS-source base station sending module is further used for leading to It crosses the RRC connection reconfiguration that respectively relaying is sent and sets the related handover success confirmation respectively relayed with switching described in completion message authentication.