CN102752820A - Cell switching method and system - Google Patents
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- CN102752820A CN102752820A CN2011101018564A CN201110101856A CN102752820A CN 102752820 A CN102752820 A CN 102752820A CN 2011101018564 A CN2011101018564 A CN 2011101018564A CN 201110101856 A CN201110101856 A CN 201110101856A CN 102752820 A CN102752820 A CN 102752820A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
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Abstract
The invention provides a cell switching method and system. The method comprises the following steps that a source base station obtains configuration information of a relay node (RN) before the RN performs switching; and the source base station transmits a signal which carries with the configuration information of the RN to the RN. By adopting the method and system provided by the invention, a new relay cell can be established as soon as possible, and the phenomenon that user equipment (UE) of the relay cell transmits data unsuccessfully by a reason of reconstruction failure or switching failure is avoided.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of cell switching method and system.
Background technology
In order to satisfy the demand that growing big bandwidth high-speed mobile inserts; Third generation partnership project (Third Generation Partnership Projects; Abbreviation 3GPP) releases senior Long Term Evolution (Long-Term Evolution advance is called for short LTE-Advanced) standard.LTE-Advanced is for Long Term Evolution (Long-Term Evolution; Abbreviation LTE) evolution has kept the core of LTE; And adopt a series of technology that frequency domain, spatial domain are expanded on this basis, to reach purposes such as improving the availability of frequency spectrum, increase power system capacity.
Wireless relay (Wireless Relay) technology is one of technology among the LTE-Advanced; Be intended to coverage, the area, dead angle in the minimizing communication, balanced load, the business of transfer hot zones and the transmitting power of saving subscriber equipment (User Equipment, abbreviation UE) of Extended Cell.As shown in Figure 1, RN provides and similar function of ordinary base station eNB and service the UE that inserts its sub-district, and wave point between the two is called " access link " (Access Link), is also referred to as the Uu interface.(Relay Node RN) inserts an eNB who serves it through wave point with the mode that is similar to common UE to via node, and the eNB that serves RN is referred to as donor base station Donor eNB, is called for short DeNB.Wave point between RN and DeNB is called " return link " (Backhaul Link), is also referred to as the Un mouth.
Whether identical according to RN in the centre frequency that Un mouth and Uu mouth use, can RN be divided into " in the band " (Inband) with " band is outer " (Outband) two kinds of mode of operations.Inband Relay refers to RN and uses identical frequency at the Un mouth with the Uu mouth, and Outband Relay is meant that RN uses different frequencies at the Un mouth with the Uu mouth.
For Inband Relay, be the individual cell that has oneself according to it, still, defined first type relaying Type1 Relay and second type relaying Type2 Relay respectively as the part of sub-district under the DeNB.Type1 Relay is meant that RN can create one's own individual cell; These sub-districts have the Physical Cell Identifier (Physical Cell ID is called for short PCI) of oneself, and RN works as the base station in the sub-district of oneself; As send reference signal, UE is dispatched etc.; And Type2 Relay does not have oneself independently sub-district and PCI, and just auxiliary DeNB carries out transfer of data.Except Type 1 Relay, also defined " Type 1a " and " Type 1b " Relay in the standard.They and Type 1 Relay are similar, and independently sub-district and PCI are all arranged, and also independently carry out the transmitting-receiving and the scheduling of control signal.
With evolution Universal Terrestrial Radio Access Network network (EUTRAN; Evolved Universal Terrestrial Radio Access Network) be example; The sub-district overall identification of Relay sub-district (E-UTRAN Cell Global Identifier; ECGI) by the webmaster of RN (Operation Administration and Maintenance, OAM) configuration.The flow process of configuration ECGI was as shown in Figure 2 after RN switched, and may further comprise the steps:
Step S201, in switching (Handover Preparation) process of preparation, source base station sends handoff request to target BS.After target BS is received handoff request, carry out access control, under the situation that resource allows, allow the switching of this UE, be this UE Resources allocation according to the qos parameter that comprises in the handoff request.Target BS sends Handover Request Acknowledge to source base station, comprises the resource information of distribution.
Here, there is X2 interface between source base station and the target BS.Service quality (QoS, the Quality of Service) parameter that in handoff request, comprises the RAB (E-RAB, E-UTRAN Radio Access Bearer) of UE foundation.
Step S202, in switching (Handover Execution) process of execution, source base station sends switching command to UE.UE obtain with Target cell synchronously, initiate to insert at random at Target cell, send to switch to target BS and accomplish signaling, so far, UE switches to Target cell.
Step S203, in switching (Handover Competion) process of completion, source base station, target BS and core network element common guarantee
Step S204, RN are from the OAM download configuration information of RN, comprising ECGI etc.
Step S205, RN set up S1/X2 with target BS and are connected.
Step S206, the configuration information of downloading in the RN broadcasting step 204 allows UE to insert this relay sub-district.
Analysis through above step is visible, when RN switches, the connected state UE of RN jurisdiction district maybe since can't be with the relay cell synchronizing Radio Link Failure (Radio Link Failure is called for short RLF), perhaps switch and switch to other sub-districts before at RN.
To in the correlation technique when RN switches, the connected state UE of RN jurisdiction district maybe since can't be with the relay cell synchronizing Radio Link Failure RLF, perhaps before RN switches, switch to the problem of other sub-districts, effective solution is not proposed at present as yet.
Summary of the invention
The present invention proposes a kind of cell switching method and system, make RN can set up new relay sub-district as early as possible, avoid the UE of relay sub-district because reconstruction failure or handoff failure cause the problem of data transmission fails.
According to an aspect of the present invention, a kind of cell switching method is provided, has comprised: before via node RN carried out switching, source base station obtained the configuration information of said RN; And the signaling that said source base station will carry the configuration information of said RN is sent to said RN.
Preferably, said source base station obtains the configuration information of said RN as follows: said target BS is sent to said source base station with the configuration information of said RN; Said source base station obtains the configuration information of said RN.
Preferably, said target BS is sent to said source base station with the configuration information of said RN, comprising: when said switching was the X2 switching, said target BS utilized said switching request acknowledgement message that the configuration information of said RN is sent to said source base station.
Preferably; Said target BS is sent to said source base station with the configuration information of said RN; Comprise: when said switching was the S1 switching, said target BS utilized said switching request acknowledgement message that the configuration information of said RN is sent to Mobility Management Entity MME; Said MME utilizes switching command message that the configuration information of said RN is sent to said source base station.
Preferably; The signaling that said source base station will carry the configuration information of said RN is sent to said RN, comprising: said source base station utilizes the special-purpose reconfiguration message of radio resource control RRC connection reconfiguration message or RN that the configuration information of said RN is sent to said RN.
Preferably, the configuration information of said RN comprise following one of at least: the cell ID of relaying relay sub-district; The Tracking Area Code of relay sub-district; The Base Station Identification of RN; RN sets up the SCTP SCTP address that the S1/X2 interface connects.
Preferably, said source base station obtains also to comprise before the configuration information of said RN:
When said switching was the X2 switching, said source base station sent handoff request message to said target BS, and wherein, carrying the indication switching node in the said handoff request message is the information of said RN; When said switching was the S1 switching, said source base station sent to switch and requires message to said MME, and wherein, it is the information of said RN that said switching requires to carry in the message indication switching node; Said MME sends handoff request message to said target BS, and carrying the indication switching node in the said handoff request message is the information of said RN.
Preferably, the said indication switching node information that is said RN comprise following one of at least: the sign of said RN; The type of said RN; The switch reasons that said RN is special-purpose; Carry the sign of the RAB E-RAB of S1/X2 signaling.
According to a further aspect in the invention, a kind of sub-district switched system is provided, has comprised source base station and via node RN: said source base station is used for before via node RN carries out switching, obtaining the configuration information of said RN; And the signaling that will carry the configuration information of said RN is sent to said RN; Said RN is used to receive said signaling of carrying the configuration information of said RN.
Preferably, said system also comprises target BS, is used for the signaling of the configuration information that carries said RN is sent to said RN.
Preferably, said target BS also is used for when the said X2 of switching to switches, utilizing said switching request acknowledgement message that the configuration information of said RN is sent to said source base station.
Preferably, said system also comprises Mobility Management Entity MME: said target BS also is used for when the said S1 of switching to switches, utilizing said switching request acknowledgement message that the configuration information of said RN is sent to said MME; Said MME is used to utilize switching command message that the configuration information of said RN is sent to said source base station.
Preferably, said source base station also is used to utilize radio resource control RRC to connect the special-purpose reconfiguration message of reconfiguration message or RN the configuration information of said RN is sent to said RN.
Preferably, said source base station also is used for when said switching is the X2 switching, sending handoff request message to said target BS, and wherein, carrying the indication switching node in the said handoff request message is the information of said RN; When said switching was the S1 switching, said source base station sent to switch and requires message to said MME, and wherein, it is the information of said RN that said switching requires to carry in the message indication switching node; Said MME sends handoff request message to said target BS, and carrying the indication switching node in the said handoff request message is the information of said RN.
In embodiments of the present invention, before via node RN carried out switching, the signaling that the configuration information of source base station acquisition RN also will carry the configuration information of RN was sent to RN.That is, in embodiments of the present invention, in the set-up procedure that switch the sub-district, RN promptly can obtain relevant configuration information, thereby RN can shift to an earlier date newly-built or upgrade the sub-district, shortened relay sub-district UE can't with the time of relay cell synchronizing, avoid UE that RLF takes place.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic network structure of utilizing the wireless relay technology according to correlation technique;
Fig. 2 is a sketch map of setting up new relay sub-district according to the X2 switching RN of correlation technique;
Fig. 3 is the process chart according to the cell switching method of the embodiment of the invention;
Fig. 4 is the flow chart according to the embodiment one of the embodiment of the invention;
Fig. 5 is the flow chart according to the embodiment two of the embodiment of the invention;
Fig. 6 is first kind of structural representation according to the sub-district switched system of the embodiment of the invention;
Fig. 7 is second kind of structural representation according to the sub-district switched system of the embodiment of the invention;
Fig. 8 is the third structural representation according to the sub-district switched system of the embodiment of the invention.
Embodiment
Mention in the correlation technique, when RN switches, the connected state UE of RN jurisdiction district maybe since can't be with the relay cell synchronizing Radio Link Failure (Radio Link Failure is called for short RLF), perhaps before RN switches, switch to other sub-districts.
For solving the problems of the technologies described above; The embodiment of the invention provides a kind of cell switching method, makes RN can set up new relay sub-district as early as possible, avoids the UE of relay sub-district because reconstruction failure or handoff failure cause data transmission fails; Its handling process is as shown in Figure 3, comprising:
Step S302, before via node RN carry out to switch, source base station obtains the configuration information of RN;
The signaling that step S304, source base station will carry the configuration information of RN is sent to RN.
In embodiments of the present invention, before via node RN carried out switching, the signaling that the configuration information of source base station acquisition RN also will carry the configuration information of RN was sent to RN.That is, in embodiments of the present invention, in the set-up procedure that switch the sub-district, RN promptly can obtain relevant configuration information, thereby RN can shift to an earlier date newly-built or upgrade the sub-district, shortened relay sub-district UE can't with the time of relay cell synchronizing, avoid UE that RLF takes place.
In addition, if the method that do not adopt the embodiment of the invention to provide, possibly exist a large amount of UE simultaneously RLF cause and rebuild signaling congestion and cause reconstruction failure, perhaps a large amount of UE switch simultaneously and cause the congested handoff failure that causes of hand off signaling, have influenced the transfer of data of UE greatly.The method that adopts the embodiment of the invention to provide need not switch to other sub-districts with UE, guarantees the transfer of data of the UE of relay sub-district.
That is, the method that adopts the embodiment of the invention to provide can be set up new relay sub-district as early as possible, avoids the UE of relay sub-district because reconstruction failure or handoff failure cause data transmission fails.
During enforcement; Flow process as shown in Figure 3, step S302 is when implementing, and source base station can obtain the configuration information of RN through number of ways; For example; Obtain the configuration information of RN in the network entity of one or several appointments from network, preferred, by target BS the configuration information of RN is sent to source base station.
In embodiments of the present invention; Target BS sends the signaling of the configuration information that carries via node RN to source base station; Because target BS is different with the interface type between source base station, the switching mode of the RN that therefore produces is also different, and is corresponding; It is also inequality that target BS sends the means of signaling of the configuration information carry via node RN; For example, when switching to X2 interface, target BS utilizes switching request acknowledgement message (HANDOVER REQUEST ACKNOWLEDGE) that the configuration information of RN is sent to source base station; Again for example; When switching to the S1 switching; Target BS utilizes switching request acknowledgement message (HANDOVERREQUESTACKNOWLEDGE) that the configuration information of RN is sent to Mobility Management Entity MME, utilizes switching command message (HANDOVER COMMAND) that the configuration information of RN is sent to source base station by MME.
In embodiments of the present invention; Flow process as shown in Figure 3; Step S304 is when implementing; Preferably, source base station can utilize radio resource control (RRC, Radio Resource Control) to connect the special-purpose reconfiguration message (RNReconfiguration) of reconfiguration message (RRCConnectionReconfiguration) or RN the configuration information of RN is sent to RN.
During enforcement, the configuration information of RN can comprise following one of at least:
The cell ID of relay sub-district is like CellIdentity, ECGI;
The Tracking Area Code of relay sub-district (TrackingAreaCode is called for short TAC);
The Base Station Identification of RN (eNB ID);
RN sets up SCTP (SCTP, the Stream Control Transmission Protocol) address that S1/X2 connects.
In the practical application, the configuration information of RN also possibly comprise other information, is not limited in several kinds that have enumerated.
In embodiments of the present invention, source base station obtains before the configuration information of RN, according to the difference of switching type; The signaling that source base station sends is different, and the destination entity that sends signaling is also different, for example; When switching to the X2 switching, source base station need send handoff request message to target BS, wherein; Carrying the indication switching node in the handoff request message is the information of RN, to be about to switch between definite target BS and source base station; Accordingly; Switch if switch to S1, then source base station sends to switch and requires message to MME, requires to carry in the message information that switching node is RN in switching; MME sends handoff request message to target BS, in handoff request message, carries the information that switching node is RN equally.
Wherein, the indication switching node is the information of RN, comprise following one of at least:
The sign of RN;
The type of RN;
The switch reasons that RN is special-purpose;
Carry the sign of the RAB E-RAB of S1/X2 signaling.
Can know by technique scheme; The basic thought of the cell switching method that the embodiment of the invention provides is: in switching set-up procedure; If target BS switches and to prepare successfully, then the target BS transmission carry via node the dedicated signaling of configuration information to source base station.In addition, the source base station dedicated signaling that sends the configuration information carry said via node is given via node.
Hereinafter will and combine embodiment to specify the present invention with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
Embodiment one
What present embodiment was described is the scene that X2 switches, referring to Fig. 4.
Step S401: source base station sends handoff request (HANDOVER REQUEST) message and gives target BS, and wherein carrying the indication switching node is the information of via node (RN).
The indication switching node be the information of RN refer to following one of at least:
The sign of RN.
The type of RN.Comprise one of following:
(inband) relaying, outer (outband) relaying of band in the band;
Fixing (fixed) relaying, mobile (mobile) relaying;
Class1 (Type 1) relaying, Class1 a (Type 1a) relaying, Class1 b (Type 1b) relaying, type 2 (Type2) relaying;
Need the Un sub-frame configuration, do not need the Un sub-frame configuration;
The switch reasons (Cause) that RN is special-purpose;
Carry the sign of the E-RAB of S1/X2 signaling.
Step S402: after target BS is received handoff request, allow via node to insert, send switching request acknowledgement message, wherein carry the configuration information of via node to source base station.
The configuration information of via node comprise following one of at least:
The cell ID of relay sub-district is like CellIdentity, ECGI;
The Tracking Area Code of relay sub-district (TrackingAreaCode is called for short TAC);
The Base Station Identification of RN (eNB ID);
RN sets up the SCTP address that S1/X2 connects.
The configuration information of via node can be directly to transmit through switching request acknowledgement message, also can be to transmit through the container in the switching request acknowledgement message (like Target eNB To Source eNB Transparent Container).
Step S403: source base station is received switching request acknowledgement message, and the configuration information of the via node that wherein carries is transmitted to via node.
Wherein, the dedicated signaling of the configuration information of source base station through carrying via node (connect like RRC and to reshuffle (RRCConnectionReconfiguration) message, or RN special-purpose reshuffle (RNReconfiguration) message) notice gives via node.
This shows; The method of introducing in the background technology; Adopt the embodiment of the invention to provide the cell switching method can be so that via node obtains configuration information in advance; Thereby shift to an earlier date sub-district newly-built or that upgrade, shortened relay sub-district UE can't with the time of relay cell synchronizing, avoid UE that RLF takes place; Need UE not switched to other sub-district in addition yet, guarantee the transfer of data of the UE of relay sub-district.
Need to prove; In the present embodiment; Because the known switching node of target BS is the method for via node passing through of being not limited to mention among the step S401 to carry the indication switching node in the handoff request message be the information of via node; For example can also be in the process of load balancing, source base station be given target BS with the node information notification that in the jurisdiction district is via node, gives unnecessary details no longer one by one at this.
Embodiment two
What present embodiment was described is the scene that S1 switches, and handling process is referring to Fig. 5.
Step S501: source base station sends to switch and requires (HANDOVER REQUIRED) message to give MME, and wherein carrying the indication switching node is the information of via node (RN).
The indication switching node be the information of RN refer to following one of at least:
The sign of RN.
The type of RN.Comprise one of following:
(inband) relaying, outer (outband) relaying of band in the band;
Fixing (fixed) relaying, mobile (mobile) relaying;
Class1 (Type 1) relaying, Class1 a (Type 1a) relaying, Class1 b (Type 1b) relaying, type 2 (Type2) relaying;
Need the Un sub-frame configuration, do not need the Un sub-frame configuration;
The switch reasons (Cause) that RN is special-purpose;
Carry the sign of the E-RAB of S1/X2 signaling.
Step S502:MME receives to switch and requires message, sends corresponding handoff request (HANDOVER REQUEST) message and give target BS.Carrying the indication switching node in the handoff request message is the information of via node.
In this process; If being the information of via node, transmits the indication switching node through container (like Source to Target Transparent Container); So because MME does not resolve the information in the container, so MME just directly is transmitted to target BS with the information in the container.
Step S503: after target BS is received handoff request, allow via node to insert, target BS sends Handover Request Acknowledge (HANDOVERREQUESTACKNOWLEDGE) message to MME, wherein carries the configuration information of via node.Further, MME sends switching command (HANDOVER COMMAND) message and gives source base station, and the configuration information of via node is transmitted to source base station.
The configuration information of via node comprise following one of at least:
The cell ID of relay sub-district is like CellIdentity, ECGI;
The Tracking Area Code of relay sub-district (TrackingAreaCode is called for short TAC);
The Base Station Identification of RN (eNB ID);
RN sets up the SCTP address that S1/X2 connects.
Step S504, source base station is received switching command message, and the configuration information of the via node that wherein carries is transmitted to via node.
Wherein, the dedicated signaling of the configuration information of source base station through carrying via node (connect like RRC and to reshuffle (RRCConnectionReconfiguration) message, or RN special-purpose reshuffle (RNReconfiguration) message) notice gives via node.
This shows; The method of introducing in the background technology; Adopt the embodiment of the invention to provide the cell switching method can be so that via node obtains configuration information in advance; Thereby shift to an earlier date sub-district newly-built or that upgrade, shortened relay sub-district UE can't with the time of relay cell synchronizing, avoid UE that RLF takes place; Need UE not switched to other sub-district in addition yet, guarantee the transfer of data of the UE of relay sub-district.
Based on same inventive concept, the embodiment of the invention provides a kind of sub-district switched system, and its structural representation is as shown in Figure 6, can comprise the source base station 601 and the via node RN 602 that link to each other successively:
In one embodiment, preferred, as shown in Figure 7, system can also comprise target BS 701, links to each other with source base station 601, is used for the signaling of the configuration information that carries RN 602 is sent to RN 602.
In one embodiment, preferred, target BS 701 also is used for when switching to the X2 switching, utilizing switching request acknowledgement message that the configuration information of RN 602 is sent to source base station 601.
In one embodiment, as shown in Figure 8, system can also comprise that Mobility Management Entity MME 801, one ends link to each other with source base station 601, and an end links to each other with target BS 701:
In one embodiment, preferred, source base station 601 also is used to utilize radio resource control RRC to connect the special-purpose reconfiguration message of reconfiguration message or RN 602 configuration information of RN 602 is sent to RN 602.
In one embodiment, preferred, source base station 601 also is used for when switching is the X2 switching, sending handoff request message to target BS 701, and wherein, carrying the indication switching node in the handoff request message is the information of RN 602;
When switching was the S1 switching, source base station 601 sent to switch and requires message to MME 801, and wherein, it is the information of RN 602 that switching requires to carry in the message indication switching node; MME 801 sends handoff request message to target BS 701, and carrying the indication switching node in the handoff request message is the information of RN 602.
From above description, can find out that the present invention has realized following technique effect:
In embodiments of the present invention, before via node RN 602 carried out switching, the signaling that the configuration information of source base station acquisition RN also will carry the configuration information of RN was sent to RN.That is, in embodiments of the present invention, in the set-up procedure that switch the sub-district, RN promptly can obtain relevant configuration information, thereby RN can shift to an earlier date newly-built or upgrade the sub-district, shortened relay sub-district UE can't with the time of relay cell synchronizing, avoid UE that RLF takes place.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the storage device and carry out, and in some cases, can carry out step shown or that describe with the order that is different from here by calculation element; Perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. a cell switching method is characterized in that, comprising:
Before via node RN carried out switching, source base station obtained the configuration information of said RN; And
The signaling that said source base station will carry the configuration information of said RN is sent to said RN.
2. method according to claim 1 is characterized in that, said source base station obtains the configuration information of said RN as follows:
Said target BS is sent to said source base station with the configuration information of said RN;
Said source base station obtains the configuration information of said RN.
3. method according to claim 2; It is characterized in that; Said target BS is sent to said source base station with the configuration information of said RN; Comprise: when said switching was the X2 switching, said target BS utilized said switching request acknowledgement message that the configuration information of said RN is sent to said source base station.
4. method according to claim 2 is characterized in that, said target BS is sent to said source base station with the configuration information of said RN, comprising:
When said switching was the S1 switching, said target BS utilized said switching request acknowledgement message that the configuration information of said RN is sent to Mobility Management Entity MME;
Said MME utilizes switching command message that the configuration information of said RN is sent to said source base station.
5. method according to claim 1; It is characterized in that; The signaling that said source base station will carry the configuration information of said RN is sent to said RN, comprising: said source base station utilizes the special-purpose reconfiguration message of radio resource control RRC connection reconfiguration message or RN that the configuration information of said RN is sent to said RN.
6. according to each described method of claim 1 to 5, it is characterized in that, the configuration information of said RN comprise following one of at least:
The cell ID of relaying relay sub-district;
The Tracking Area Code of relay sub-district;
The Base Station Identification of RN;
RN sets up the SCTP SCTP address that the S1/X2 interface connects.
7. method according to claim 6 is characterized in that, said source base station obtains also to comprise before the configuration information of said RN:
When said switching was the X2 switching, said source base station sent handoff request message to said target BS, and wherein, carrying the indication switching node in the said handoff request message is the information of said RN;
When said switching was the S1 switching, said source base station sent to switch and requires message to said MME, and wherein, it is the information of said RN that said switching requires to carry in the message indication switching node;
Said MME sends handoff request message to said target BS, and carrying the indication switching node in the said handoff request message is the information of said RN.
8. method according to claim 7 is characterized in that, the information that said indication switching node is said RN comprise following one of at least:
The sign of said RN;
The type of said RN;
The switch reasons that said RN is special-purpose;
Carry the sign of the RAB E-RAB of S1/X2 signaling.
9. a sub-district switched system is characterized in that, comprises source base station and via node RN:
Said source base station is used for before via node RN carries out switching, obtaining the configuration information of said RN; And the signaling that will carry the configuration information of said RN is sent to said RN;
Said RN is used to receive said signaling of carrying the configuration information of said RN.
10. system according to claim 9 is characterized in that said system also comprises target BS, is used for the signaling of the configuration information that carries said RN is sent to said RN.
11. system according to claim 10 is characterized in that, said target BS also is used for when the said X2 of switching to switches, utilizing said switching request acknowledgement message that the configuration information of said RN is sent to said source base station.
12. system according to claim 10 is characterized in that, said system also comprises Mobility Management Entity MME:
Said target BS also is used for when the said S1 of switching to switches, utilizing said switching request acknowledgement message that the configuration information of said RN is sent to said MME;
Said MME is used to utilize switching command message that the configuration information of said RN is sent to said source base station.
13. system according to claim 9 is characterized in that, said source base station also is used to utilize radio resource control RRC to connect the special-purpose reconfiguration message of reconfiguration message or RN the configuration information of said RN is sent to said RN.
14. according to each described system of claim 9 to 13; It is characterized in that said source base station also is used for when said switching is the X2 switching, sending handoff request message to said target BS; Wherein, carrying the indication switching node in the said handoff request message is the information of said RN;
When said switching was the S1 switching, said source base station sent to switch and requires message to said MME, and wherein, it is the information of said RN that said switching requires to carry in the message indication switching node; Said MME sends handoff request message to said target BS, and carrying the indication switching node in the said handoff request message is the information of said RN.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101018564A CN102752820A (en) | 2011-04-22 | 2011-04-22 | Cell switching method and system |
| PCT/CN2011/081977 WO2012142824A1 (en) | 2011-04-22 | 2011-11-09 | Cell handover method and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101018564A CN102752820A (en) | 2011-04-22 | 2011-04-22 | Cell switching method and system |
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| CN102752820A true CN102752820A (en) | 2012-10-24 |
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| CN2011101018564A Pending CN102752820A (en) | 2011-04-22 | 2011-04-22 | Cell switching method and system |
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| CN (1) | CN102752820A (en) |
| WO (1) | WO2012142824A1 (en) |
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| WO2012142824A1 (en) | 2012-10-26 |
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