CN102404100A - Method and system of negotiating and determining operating mode of RN (Role Network) - Google Patents
Method and system of negotiating and determining operating mode of RN (Role Network) Download PDFInfo
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- CN102404100A CN102404100A CN2010102874416A CN201010287441A CN102404100A CN 102404100 A CN102404100 A CN 102404100A CN 2010102874416 A CN2010102874416 A CN 2010102874416A CN 201010287441 A CN201010287441 A CN 201010287441A CN 102404100 A CN102404100 A CN 102404100A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15557—Selecting relay station operation mode, e.g. between amplify and forward mode, decode and forward mode or FDD - and TDD mode
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Abstract
The invention discloses a method of negotiating and determining an operating mode of a RN (Role Network). The method mainly comprises the steps that the RN reports a preconfigured operating mode of the RN to a DeNB (donor eNB); and the DeNB determines the operating mode of the RN according to the operating mode reported by the RN and the information of equipment capacity of the DeNB and informs the RN of the determined operating mode. The invention also disclose a system of negotiating and determining the operating mode of the RN; the system not only can ensure the operating mode of the RN and the operating mode of the RN recorded on the DeNB to be consistent when the RN is connected into the DeNB but also can avoid an unnecessary interactive negation flow, thereby effectively improving the negotiation efficiency and saving resources; meanwhile, by adopting the system, the preconfigured operating mode inappropriate for the DeNB can be modified; and the system is simple, flexible and reliable.
Description
Technical field
The present invention relates to the wireless relay technology of wireless communication field, relate in particular to a kind of method and system of consulting to confirm the RN mode of operation.
Background technology
3G (Third Generation) Moblie Long Term Evolution (LTE; Long Term Evolution) system is third generation partnership project (3GPP; Third Generation Partnership Projects) the new wireless communication system based on OFDM (OFDMA, Orthogonal Frequency Division Multiple Access) technology of development.With the existing wireless communications compared with techniques, LTE has advantages such as data transfer bandwidth is big, and spectrum efficiency is high, and the anti-interference that the wireless signal multipath is disturbed is good, is the major technique of next generation communication system.The LTE system is by the universal land radio access web (E-UTRAN of evolution; Evolved Universal TerrestrialRadio Access Network), subscriber equipment (UE; User Equipment), the packet-based core networks of evolution (EPC, Evolved Packet Core) are formed.E-UTRAN is made up of base station eNB, and eNB connects through X2 interface between two eNB through S1 interface and mobility management apparatus (MME, Mobility Management Entity) and gateway (S-GW, Serving Gateway) link.On the LTE basis, 3GPP is just continuing to develop senior Long Term Evolution (LTE-A, Advanced Long-TermEvolution) standard.LTE-A has adopted such as spectrum aggregating (CA, Carrier Aggregation), wireless relay (Relay), and technology such as multiple-input and multiple-output (MIMO, Multiple Input Multiple Output) can realize higher systematic function.
In cordless communication network; Landform or environment reason some areas arranged owing to can't be carried out the wired backbone network connection of ordinary base station; Perhaps some covering dead angles or hot zones there is provisional wireless coverage demand; But the base station equipment cost that sets up wired connection is higher, can adopt wireless relay (Relay) equipment to solve usually.As shown in Figure 1, wireless relay apparatus is connected with the base station radio of existing network, and to the UE in the own coverage service is provided, and realizes the expansion to base station range, reduces to cover the dead angle, shifts purposes such as hot zones load.
Wireless relay is one of technology of supporting of LTE-A.In LTE-A, the base station of carrying out wireless connections with via node (RN, Relay Node) is donor base station (DeNB, Donor eNB), and the Radio Link between DeNB and the RN is called back haul link (backhaul link), and its air interface is called the Un interface.Radio Link between RN and the UE is called access link (access link), and its air interface is called the Uu interface.RN serves as the role of an eNB for the subscriber equipment (UE) of its service, then serves as the role of a UE for its DeNB, and downlink data arrives DeNB earlier, and then passes to RN, and RN transfers to UE again, otherwise upstream data then.
At the frequency via node identical that access link uses, be called via node (In-band Relay Node) in the band with the frequency of back haul link; At the frequency of access link use and the frequency via node inequality of back haul link, be called band outer via node (Out-of-band Relay Node).Wherein, For the outer via node of band; Because its frequency of using at back haul link maybe be different with the frequency that link between DeNB and the UE uses; This moment, DeNB need work in a plurality of frequency ranges simultaneously, and the frequency of being with outer via node to use at its access link also maybe be different with the frequency that link between DeNB and the UE uses.For via node in the band; Owing to all use same frequency at access link and back haul link; Therefore can not send downlink data at the back haul link downlink data receiving and at access link simultaneously; Promptly can not send upstream data and receive upstream data at the Un interface simultaneously, otherwise will produce serious interference certainly between the dual-mode antenna of RN at the Uu interface.For this reason; The Un interface of via node and the data transmit-receive of Uu interface take the timesharing semiduplex mode to carry out in the band; Promptly when RN passes through Un interface downlink data receiving; Then stop at the Uu interface and send downlink data, when RN receives upstream data through the Uu interface, then stop at the Un interface and receive upstream data.
Wherein, the outer via node of band can adopt full-duplex mode work; Via node generally need adopt time-division semiduplex mode work in the band; At this moment; For need be with via node in the band of time-division semiduplex mode work; DeNB need carry out a lot of particular processing, for example Un openning frame is configured to downlink dedicated subframe and up special-purpose subframe respectively, for RN uses special downlink dedicated control channel (R-PDCCH) or the like; If via node adopts perfect antenna isolation technology to solve simultaneously the interference problem certainly that is produced in Un interface and Uu interface transceive data in the band, then can adopt full-duplex mode work.In the practical application, even RN has possessed the ability with full-duplex mode work on hardware, but owing to some odjective cause possibly still had to time-division semiduplex mode work.For example, when operator had only an available frequency band, RN still need use identical frequency with the Uu interface at the Un interface, thereby has to time-division semiduplex mode work.
Based on above reason, RN must agree the mode of operation of the RN that is write down on self working mode and the DeNB when inserting DeNB, makes DeNB in time to take corresponding processing according to the mode of operation of RN.At present, the device capability information of pre-configured RN on the RN and the DeNB that will insert just directly is like the mode of operation (time-division half-or full-duplex) supported or the device type (via node or the outer via node of band in the band) of RN self; Perhaps, the device capability information of self is informed the DeNB that will insert by RN again at pre-configured its device capability information of RN.But, the present method that does not also propose the mode of operation of the definite RN of negotiation between RN and the DeNB, to guarantee RN when inserting DeNB, the mode of operation of RN is consistent with the mode of operation of the RN that DeNB upward writes down.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method and system of consulting to confirm the RN mode of operation, can guarantee RN when inserting DeNB, and the mode of operation of RN is consistent with the mode of operation that DeNB goes up the RN that writes down.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of method of consulting to confirm via node RN mode of operation, said method comprises: RN is to the pre-configured mode of operation of donor base station DeNB report self; Said DeNB confirms the mode of operation of said RN, and notifies said RN determined mode of operation according to the mode of operation of said RN report and the device capability information of self.
In such scheme, said RN is specially to the pre-configured mode of operation of DeNB report self: said RN carries self pre-configured mode of operation through the RRC signaling and gives said DeNB in the process that inserts DeNB.
In such scheme; Said DeNB confirms the mode of operation of said RN, and notifies said RN determined mode of operation according to the mode of operation of said RN report and the device capability information of self; Comprise: said DeNB is according to the device capability information of self and the mode of operation of said RN report; Judge whether self supports the mode of operation that said RN is pre-configured,, then indicate said RN replacement mode of operation if do not support; If support, confirm that then the mode of operation of said RN is said pre-configured mode of operation, and notify said RN to accept said pre-configured mode of operation; Perhaps, indicate said RN replacement mode of operation.
In such scheme, saidly notify said RN to accept said pre-configured mode of operation, be specially: said DeNB implicitly notifies said RN to accept said pre-configured mode of operation to the parameter that said RN sends the definite mode of operation needs of institute; Perhaps, said DeNB sends to said RN and confirms instruction, and explicitly notifies said RN to accept said pre-configured mode of operation.
In such scheme; Said DeNB indicates said RN replacement mode of operation; Be specially: said DeNB is according to the device capability information of the device capability information of self, the said RN that gets access to and the mode of operation of said RN report; Confirm the mode of operation that said RN will reset; And through the RRC signaling mode of operation that will reset of confirm is sent to RN, the mode of operation of indicating said RN to reset, again by RN with self working mode reset to confirm, the said mode of operation that will reset of the DeNB that obtains.
In such scheme, said DeNB indicates said RN replacement mode of operation, is specially: said DeNB indicates said RN self not support said pre-configured mode of operation through the RRC signaling; After said RN receives said indication, the replacement self working mode, and the mode of operation after will resetting reports said DeNB; Afterwards, said DeNB confirms to support the mode of operation after said RN resets, and notifies the mode of operation after said RN has accepted said replacement.
In such scheme, if said DeNB indicates said RN to reset to full-duplex mode, said method also comprises: said DeNB indicates the operating frequency of said RN replacement Un interface and/or the operating frequency of Uu interface.
In such scheme, before the said RN replacement mode of operation of indication, said method also comprises: said RN initiatively reports self device capability information through the RRC signaling to DeNB, accomplishes said DeNB obtaining the device capability information of said RN; Perhaps, said DeNB inquires about the device capability information of said RN through the RRC signaling, gives said DeNB by said RN with the device capability information reporting of self again, accomplishes said DeNB obtaining the device capability information of said RN.
In such scheme, said method also comprises: when said DeNB obtains the device capability information of said RN, also obtain configuration information and/or the configuration information of Un interface of the Uu interface of said RN.
In such scheme; At said RN before DeNB report self working mode; Said method also comprises: through manual type is the pre-configured mode of operation of said RN; Perhaps, said RN obtains from the operation management maintain system of self and wants pre-configured mode of operation, accomplishes the pre-configured of self mode of operation.
In such scheme, the mode of operation of pre-configured said RN comprises: said RN obtains the device capability information of DeNB, and according to the device capability information of the DeNB that gets access to and the device capability information of self, accomplishes the pre-configured of said RN mode of operation.
In such scheme; Said RN obtains the device capability information of DeNB; Comprise: said DeNB increases the device capability information of self in the information of said RN broadcasting, makes RN can from the broadcast message of said DeNB, get access to the device capability information of said DeNB.
In such scheme, said method also comprises: in the time of need carrying out the RRC connection reconstruction, after accomplishing the process of rebuilding, said DeNB indicates said RN replacement mode of operation through the RRC signaling.
The present invention also provides a kind of system that consults to confirm via node RN mode of operation, and said system comprises: RN and DeNB, and said RN comprises the report unit; Said DeNB comprises definite unit and notification unit; Wherein, the report unit is used for to the pre-configured mode of operation of said DeNB report self; Confirm the unit, be used for confirming the mode of operation of said RN according to the mode of operation of said report unit report and the device capability information of said DeNB self; Notification unit is used to notify the said definite unit of said RN determined mode of operation.
In such scheme, said notification unit also is used to indicate said RN replacement mode of operation; Said definite unit; Specifically be used for; The mode of operation of being reported according to device capability information and the said report unit of said DeNB self; Judge whether said DeNB supports the mode of operation that said RN is pre-configured,, then indicate said RN replacement mode of operation through said notification unit if do not support; If support, confirm that then the mode of operation of said RN is said pre-configured mode of operation, and notify said RN self to accept said pre-configured mode of operation through said notification unit; Perhaps, indicate said RN replacement mode of operation.
In such scheme, said RN also comprises: reset cell is used to the mode of operation of said RN of resetting; Said DeNB also comprises: first acquiring unit is used to obtain the device capability information of said RN; Said notification unit; Specifically also be used for; The device capability information of the said RN that gets access to according to device capability information and said first acquiring unit of said DeNB self; The mode of operation of indicating the reset cell of said RN to reset, and the mode of operation of said RN is reset to the indicated mode of operation of said notification unit by the reset cell of said RN.
In such scheme; Said RN also comprises: pre-configured unit, and being used for through manual type is the pre-configured mode of operation of said RN, perhaps; Want pre-configured mode of operation through from the operation management maintain system of said RN, obtaining, accomplish the pre-configured of said RN mode of operation.
In such scheme, said RN also comprises: second acquisition unit is used to obtain the device capability information of DeNB; Said pre-configured unit, the device capability information of the DeNB that specifically is used for getting access to according to said second acquisition unit and the device capability information of said RN self are accomplished the pre-configured of said RN mode of operation.
The method and system of RN mode of operation are confirmed in negotiation of the present invention; Through consulting between RN and the DeNB;, confirm the mode of operation of said RN, and notify said RN determined mode of operation according to pre-configured mode of operation of said RN and the device capability information of self by DeNB; Can guarantee RN when inserting DeNB, the mode of operation of RN is consistent with the mode of operation that DeNB goes up the RN that writes down; And; Allow RN to select to be fit to self working mode, thereby can guarantee to carry out the negotiation of RN mode of operation under the situation that RN supports with pre-configured mode; More meet the just receptible situation of RN support DeNB in the practical application; Can avoid unnecessary mutual negotiation flow process, effectively improve negotiation efficiency, and save resource; Simultaneously, the present invention can also realize that DeNB makes amendment simple and flexible to improper self pre-configured mode of operation.
In addition, the completion of RRC Signalling exchange is passed through in negotiations process of the present invention basically, and is simple and reliable, is easy to realize.
Description of drawings
Fig. 1 is that the LTE system that comprises via node forms structural representation;
Fig. 2 confirms the composition structural representation of the system of RN mode of operation for negotiation of the present invention;
Fig. 3 is a schematic flow sheet of consulting to confirm the RN mode of operation in the embodiment of the invention one;
Fig. 4 is a schematic flow sheet of consulting to confirm the RN mode of operation in the embodiment of the invention two;
Fig. 5 is a schematic flow sheet of consulting to confirm the RN mode of operation in the embodiment of the invention three;
Fig. 6 is a schematic flow sheet of consulting to confirm the RN mode of operation in the embodiment of the invention four;
Fig. 7 is a schematic flow sheet of consulting to confirm the RN mode of operation in the embodiment of the invention five;
Fig. 8 is a schematic flow sheet of consulting to confirm the RN mode of operation in the embodiment of the invention six;
Fig. 9 is a schematic flow sheet of consulting to confirm the RN mode of operation in the embodiment of the invention seven.
Embodiment
Basic thought of the present invention is: RN is to the pre-configured mode of operation of DeNB report self, and DeNB confirms the mode of operation of said RN, and notifies said RN determined mode of operation according to the mode of operation of said RN report and the device capability information of self.
Wherein, The mode of operation of said RN can be divided into following two kinds: time-division semiduplex mode and full-duplex mode, wherein, when adopting the time-division semiduplex mode to work; RN all takes time division way at Un interface and Uu interface; Be RN when Un interface downlink data receiving, then stop at the Uu interface and send downlink data, when the Uu interface sends downlink data, then stop at Un interface downlink data receiving; When the Un interface sends upstream data, then stop at the Uu interface and receive upstream data, when the Uu interface receives upstream data, then stop at the Un interface and send upstream data; When adopting full-duplex mode work, RN is in Un interface and the independent full duplex work respectively of Uu interface.
Here; RN is to the pre-configured mode of operation of DeNB report self; Be specially: RN is in the process that inserts DeNB; Can pass through the RRC signaling, for example RRC connection request (RRC Connection Request) or RRC connect to set up accomplish signalings such as (RRC Connetion Setup Complete), carry self pre-configured mode of operation and give said DeNB.
Here, the device capability information of said DeNB can comprise: whether support the needed software function of time-division semiduplex mode and whether support Un interface under the full-duplex mode and/or the configuration of the frequency parameter of Uu interface.For example, whether support the needed software function of time-division semiduplex mode specifically can be: whether to support RN is carried out the configuration of Un ascending-descending subframes, and carry out the up-downgoing transmission according to the Un subframe that is disposed.
Particularly; DeNB confirms the mode of operation of said RN, and notifies said RN determined mode of operation according to the mode of operation of said RN report and the device capability information of self; Comprise: said DeNB is according to the device capability information of self and the mode of operation of said RN report; Judge whether self supports the mode of operation that said RN is pre-configured,, then indicate said RN replacement mode of operation if do not support; If support, confirm that then the mode of operation of said RN is said pre-configured mode of operation, and notify said RN self to accept said pre-configured mode of operation, perhaps indicate said RN replacement mode of operation.
Wherein, notify said RN self to accept said pre-configured mode of operation, be specially: said DeNB implicitly notifies said RN self to accept said pre-configured mode of operation to the parameter that said RN sends the definite mode of operation needs of institute; Perhaps, said DeNB sends to said RN and confirms instruction, and explicitly notifies said RN self to accept said pre-configured mode of operation.Here, said affirmation instruction specifically can be to carry the RRC signaling of confirming mode of operation to some extent.
Here; Said DeNB accepts said pre-configured mode of operation; The mode of operation of the said RN that specifically is meant said DeNB and is write down is consistent with said pre-configured mode of operation, perhaps, also can be meant when said DeNB checking self can be supported said pre-configured mode of operation; Mode of operation at the said RN of self record is said pre-configured mode of operation, makes that the mode of operation of the said RN that self writes down is consistent with said pre-configured mode of operation.
Particularly; If the pre-configured mode of operation of the mode of operation that DeNB finally confirms and RN is consistent; Then can be through carrying the RRC signaling of confirming mode of operation to some extent; Show that to RN ground confirms that pattern that RN reports is accepted, perhaps through send to RC the definite mode of operation of institute need relevant parameter, the pre-configured mode of operation of said RN has been accepted self in the implicit expression affirmation.For example, if the pre-configured mode of operation of RN is the time-division semiduplex mode, then DeNB can confirm self to have accepted this pre-configured mode of operation to RN through send the needed Un sub-frame configuration of time-division semiduplex mode parameter to RN; If the pre-configured mode of operation of RN is a full-duplex mode, then DeNB can confirm self to have accepted this pre-configured mode of operation to RN through the operating frequency of sending needed Uu interface of full-duplex mode and/or Un interface to RN.
Wherein, Said DeNB indicates said RN replacement mode of operation; Can comprise: said DeNB is according to device capability information of self and the device capability information of the said RN that gets access to; The mode of operation of indicating said RN to reset, and self working mode is reset to indicated mode of operation by said RN.
Here; Said DeNB indicates said RN replacement mode of operation; Specifically can for: said DeNB according to the device capability information of the device capability information of self, the said RN that gets access to and the mode of operation of said RN report, confirm the mode of operation that said RN will reset, and the mode of operation that will reset of confirm sent to RN through the RRC signaling; The mode of operation of indicating said RN to reset, again by RN with self working mode reset to confirm, the said mode of operation that will reset of the DeNB that obtains.
Perhaps, said DeNB indicates said RN replacement mode of operation, specifically can also for: said DeNB indicates said RN self not support said pre-configured mode of operation through the RRC signaling; After said RN receives said indication, the replacement self working mode, and the mode of operation after will resetting reports said DeNB; Afterwards, said DeNB confirms to support the mode of operation after said RN resets, notifies the mode of operation after said RN self has accepted said replacement.
Particularly; Said DeNB can indicate said RN self not support said pre-configured mode of operation through the RRC signaling, after said RN receives this indication, according to device capability information of self and pre-configured mode of operation; The replacement self working mode; And the mode of operation after will resetting through the RRC signaling reports said DeNB, and said DeNB receives the mode of operation after the replacement that said RN reports, and the mode of operation of confirming said RN is the mode of operation after the said replacement.Afterwards, said DeNB can also notify the mode of operation after said RN self has accepted to reset.
Here, if said DeNB indicates said RN to reset to full-duplex mode, said method can also comprise: said DeNB indicates the operating frequency of said RN replacement Un interface and/or the operating frequency of Uu interface.
In the practical application, when DeNB indication RN reset to full-duplex mode, DeNB can also indicate RN to revise other relevant setting, for example operating frequencies of the operating frequency of Uu interface or Un interface.
Here, the device capability information of said RN specifically can comprise one or more arbitrarily in the following information: whether be supported in Un interface and Uu interface and use the different working frequency; Whether require to use identical operating frequency with the Uu interface at the Un interface; Whether adopted the antenna isolation technology; Whether support the needed specific function of time-division semiduplex mode, for example accept the Un ascending-descending subframes of DeNB configuration and carry out transfer of data according to the Un ascending-descending subframes that is disposed; Whether support the time-division semiduplex mode; Whether support full-duplex mode; Whether be via node in the band; Whether be the outer via node of band.
Wherein, as long as RN supports the needed specific function of time-division semiduplex mode, just can be configured to the time-division semiduplex mode; When RN is supported in Un interface and Uu interface use different working frequency, perhaps when requiring Un interface and Uu interface to use identical operating frequency and having adopted the antenna isolation technology, can be configured to full-duplex mode.
For example, the device capability information of RN specifically can be following five kinds: the first, and only be supported in the Un interface and use identical operating frequency with the Uu interface, the time-division semiduplex mode is supported in no antenna isolation measure; The second, only be supported in the Un interface and use identical operating frequency with the Uu interface, good antenna isolation measure is arranged, do not support the time-division semiduplex mode; The 3rd, only be supported in the Un interface and use identical operating frequency with the Uu interface, good antenna isolation measure is arranged, also support the time-division semiduplex mode; The 4th, only support full-duplex mode, do not support the time-division semiduplex mode; The 5th, support time-division semiduplex mode and full-duplex mode simultaneously.
Here, before the said RN replacement mode of operation of indication, said method also comprises: said DeNB obtains the device capability information of said RN.Particularly, initiatively report the device capability information of self to DeNB through the RRC signaling by said RN; Perhaps, inquire about the device capability information of said RN through the RRC signaling, give said DeNB by said RN with the device capability information reporting of self again by said DeNB.
Wherein, When said DeNB obtains the device capability information of said RN; Can also obtain configuration information and/or the configuration information of Un interface of the Uu interface of said RN; For example, said RN is in the operating frequency of Uu interface use or the operating frequency tabulation of being supported, and/or said RN is in the operating frequency of Un interface use or the operating frequency tabulation of being supported etc.
Among the present invention; At RN before DeNB report self working mode; Said method also comprises: in the pre-configured mode of operation of said RN, perhaps, said RN is from the operation management maintain (OAM of self through manual type; Operation Administration and Maintenance) obtains pre-configured mode of operation in the system, accomplish the pre-configured of self mode of operation.
Here, pre-configured its mode of operation of said RN equipment is selected according to device capability information of self and current operative scenario usually.For example, only support the RN of time-division semiduplex mode for capacity of equipment, its mode of operation is the prewired time-division semiduplex mode that is changed to usually; And support the RN of time-division semiduplex mode and full-duplex mode simultaneously for capacity of equipment, its mode of operation can be configured to full-duplex mode or time-division semiduplex mode.
In the practical application, RN can also obtain the device capability information of DeNB before pre-configured self working mode, and according to the device capability information of the DeNB that gets access to and the device capability information of self, accomplished the pre-configured of said RN mode of operation.For example, DeNB can increase the device capability information of self in the information of RN broadcasting, the feasible device capability information that from the broadcast message of said DeNB, gets access to said DeNB.Like this, can avoid DeNB not support the mode of operation that RN is pre-configured, thereby save the process of replacement RN mode of operation, can improve the efficient of confirming said RN mode of operation.
Especially, said method also comprises: in the time of need carrying out the RRC connection reconstruction, after accomplishing process of reconstruction, DeNB indicates said RN replacement mode of operation through the RRC signaling.In the practical application, general RN can carry out the RRC connection reconstruction when Radio Link is set up failure.Here, in the time of need carrying out the RRC connection reconstruction, the mode of operation that said DeNB indicates said RN to reset, the mode of operation that before radio link failure, is adopted with said RN is identical, the mode of operation of the accepted said RN of promptly said DeNB.
For realizing said method; The present invention also provides a kind of system that consults to confirm via node RN mode of operation, and as shown in Figure 2, this system comprises: RN_21 and DeNB_22; Said RN_21 comprises report unit 211; Said DeNB_22 comprises definite unit 221 and notification unit 222, and wherein, report unit 211 is used for to the pre-configured mode of operation of said DeNB_22 report self; Confirm that unit 221 is used for confirming the mode of operation of said RN_21 according to the mode of operation of report unit 211 reports and the device capability information of said DeNB_22 self; Notification unit 222 is used to notify the said definite unit of said RN_21 221 determined mode of operations.
Here, said notification unit 222 also is used to indicate said RN replacement mode of operation; Said definite unit 221 specifically is used for the mode of operation reported according to the device capability information of said DeNB_22 self and said report unit 211; Judge whether said DeNB_22 supports the mode of operation that said RN_21 is pre-configured; If do not support, then through the said RN replacement mode of operation of said notification unit 222 indications; If support, confirm that then the mode of operation of said RN_21 is said pre-configured mode of operation, and notify said RN_21 self to accept said pre-configured mode of operation through said notification unit 222; Perhaps, through the said RN_21 replacement mode of operation of said notification unit 222 indications.
Wherein, said RN_21 can also comprise: reset cell 212 is used for according to the mode of operation of said RN_21 of resetting; Said DeNB can also comprise: first acquiring unit 223 is used to obtain the device capability information of said RN_21; Said notification unit 222 specifically also is used for; The device capability information of the said RN that gets access to according to device capability information and said first acquiring unit 223 of said DeNB_22 self; The mode of operation of indicating the reset cell 212 of said RN_21 to reset, and the mode of operation of said RN_21 is reset to the indicated mode of operation of said notification unit by the reset cell 212 of said RN_21.
Wherein, Said RN_21 can also comprise: pre-configured unit 213, and being used for through manual type is the pre-configured mode of operation of said RN_21, perhaps; Want pre-configured mode of operation through from the OAM system of said RN, obtaining, accomplish the pre-configured of said RN_21 mode of operation.
Here, said RN_21 can also comprise: second acquisition unit 214 is used to obtain the device capability information of DeNB_22; The device capability information of the DeNB_22 that said pre-configured unit 213 specifically is used for getting access to according to said second acquisition unit 214 and the device capability information of said RN_21 self are accomplished the pre-configured of said RN_21 mode of operation.
Among the present invention,, realize consulting between RN and the DeNB process of definite RN mode of operation, please refer to the description of said method and the description of following embodiment, repeat no more at this through said system.
Below in conjunction with instance, concrete implementation of the present invention is explained further details.
Embodiment one
In the present embodiment, RN only supports the time-division half-duplex mode, and through manual type, is the time-division half-duplex in pre-configured its mode of operation of RN, and as shown in Figure 3, the process of consulting the mode of operation of definite RN specifically comprises following flow process:
Step 304; DeNB receives the RRC Connection Setup Complete that RN sends; The mode of operation of confirming said RN is said pre-configured time-division semiduplex mode; And send the RRC connection to RN and reshuffle (RRC Connection Reconfiguration) signaling, including the needed Un sub-frame configuration of time-division semiduplex mode parameter in this RRC Connection Reconfiguration signaling, implicit expression notice RN self has accepted the pre-configured mode of operation of RN.
Embodiment two
In the present embodiment, RN only supports the time-division semiduplex mode, and through manual type, is the time-division half-duplex in pre-configured its mode of operation of RN, and as shown in Figure 4, the process of consulting the mode of operation of definite RN specifically comprises following flow process:
Step 401, RN begins to insert DeNB, sends RRC Connection Request to DeNB, and in this RRC Connection Request signaling, carries its pre-configured time-division semiduplex mode;
Step 404; DeNB receives the RRC Connection Setup Complete that RN returns; Send RRC Connection Reconfiguration to RN, include the needed Un sub-frame configuration of time-division semiduplex mode parameter among this RRC Connection Reconfiguration.
Embodiment three
In the present embodiment, RN supports time-division semiduplex mode and full-duplex mode simultaneously, and is full duplex through manual type in pre-configured its mode of operation of RN, and is as shown in Figure 5, and the process of consulting the mode of operation of definite RN specifically comprises following flow process:
Step 504; DeNB receives the RRC Connection Setup Complete that RN returns; Send RRC Connection Reconfiguration to RN, needed Un sub-frame configuration parameter when including the work of RN employing time-division semiduplex mode among this RRC Connection Reconfiguration.
Embodiment four
In the present embodiment, RN supports time-division semiduplex mode and full-duplex mode simultaneously, and is as shown in Figure 6, and the process of consulting the mode of operation of definite RN specifically comprises following flow process:
Step 602, RN is from the configuration data of the OAM system downloads self of self, and pre-configured self working mode is the time-division half-duplex;
Step 604, RN is through the device capability information of UE Capability Information message to DeNB report self, and wherein, self device capability information of RN report includes the information that full-duplex mode and time-division semiduplex mode are supported in expression simultaneously;
Step 605, RN is the time-division half-duplex through the mode of operation indication (Mode Indication) of RRC message to the pre-configured mode of operation of DeNB report self;
Step 606; DeNB is according to the device capability information of self, the device capability information and the pre-configured mode of operation of RN of RN report; Confirm the mode of operation of said RN is reset to full-duplex mode; Through RRC Connection Reconfiguration signaling; Notice RN resets to its mode of operation full-duplex mode and the operating frequency of its Uu interface is configured to f, and RN receives the RRCConnection Reconfiguration that DeNB sends, and the replacement self working mode is full duplex and the operating frequency of self Uu interface is configured to f.
Embodiment five
In the present embodiment, RN supports full-duplex mode and time-division semiduplex mode simultaneously, and the artificial prewired time-division semiduplex mode that is changed to, and is as shown in Figure 7, and the process of consulting the mode of operation of definite RN specifically comprises following flow process:
Step 702, the DeNB judgement self is not supported the time-division semiduplex mode, sends RRCConnection Reject to RN, refuse it and insert, and the Reason For Denial that carries among this RRC Connection Reject is designated as " not supporting the time-division semiduplex mode ";
Embodiment six
In the present embodiment; RN supports full-duplex mode and time-division semiduplex mode simultaneously; But consider that DeNB might can't support the operating frequency of Un interface configuration or the operating frequency of Uu interface configuration; So and through the prewired time-division semiduplex mode that is changed to of manual type, as shown in Figure 8, the process of consulting the mode of operation of definite RN specifically comprises following flow process:
Step 803, RN sends RRC Connection Setup Complete to DeNB;
Step 805, RN supports the information of full-duplex mode and time-division semiduplex mode through the device capability information of UE Capability Information message to DeNB report self comprising self simultaneously;
Step 806; Because DeNB possesses the ability of supporting multiband polymerization (Carrier Aggregation); Support full-duplex mode, know that according to the device capability information of RN RN also supports full-duplex mode again, therefore; Through RRC Connection Reconfiguration the mode of operation of RN is re-set as full duplex, the Un interface operating frequency of the RN that also resets simultaneously is f.
Embodiment seven
In the present embodiment, RN is with time-division semiduplex mode work, and until Un interface wireless link failure takes place, RN need start RRC connection reconstruction process, and is as shown in Figure 9, and the negotiation of this moment confirms that the process of the mode of operation of RN specifically comprises following flow process:
Step 904; DeNB sends RRC Connection Reconfiguration to RN; In this RRCConnection Reconfiguration signaling, carry the mode of operation " time-division half-duplex " that will adopt; Perhaps carry the needed Un sub-frame configuration of time-division semiduplex mode parameter, indicating said its mode of operation of RN replacement is time-division half-duplex module.
Here, DeNB also can carry mode of operation " time-division half-duplex " pattern that will adopt in the RRC of step 902 Connection Re-establishment signaling, and indicating said its mode of operation of RN replacement is time-division half-duplex module.
Need to prove, in practical application, if RN supports full-duplex mode and time-division semiduplex mode simultaneously; And the prewired full-duplex mode that is changed to, DeNB are supported full-duplex mode and time-division semiduplex mode simultaneously, at this moment; Through method of the present invention, also can be when needed, the mode of consulting through RN and DeNB; The mode of operation of RN is reset to the time-division semiduplex mode, and concrete implementation procedure repeats no more at this with reference to the flow process of the foregoing description.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (18)
1. method of consult confirming via node RN mode of operation is characterized in that said method comprises:
RN is to the pre-configured mode of operation of donor base station DeNB report self; Said DeNB confirms the mode of operation of said RN, and notifies said RN determined mode of operation according to the mode of operation of said RN report and the device capability information of self.
2. said negotiation is confirmed to it is characterized in that the method for via node RN mode of operation according to claim 1, and said RN is specially to the pre-configured mode of operation of DeNB report self:
Said RN carries self pre-configured mode of operation through the RRC signaling and gives said DeNB in inserting the process of DeNB.
3. the method for via node RN mode of operation is confirmed in said negotiation according to claim 1; It is characterized in that said DeNB confirms the mode of operation of said RN according to the mode of operation of said RN report and the device capability information of self; And notify said RN determined mode of operation, comprising:
Said DeNB judges according to the device capability information of self and the mode of operation of said RN report whether self supports the mode of operation that said RN is pre-configured, if do not support, then indicates said RN replacement mode of operation;
If support, confirm that then the mode of operation of said RN is said pre-configured mode of operation, and notify said RN to accept said pre-configured mode of operation; Perhaps, indicate said RN replacement mode of operation.
4. said negotiation is confirmed to it is characterized in that the method for via node RN mode of operation according to claim 3, saidly notifies said RN to accept said pre-configured mode of operation, is specially:
Said DeNB implicitly notifies said RN to accept said pre-configured mode of operation to the parameter that said RN sends the definite mode of operation needs of institute;
Perhaps, said DeNB sends to said RN and confirms instruction, and explicitly notifies said RN to accept said pre-configured mode of operation.
5. said negotiation is confirmed the method for via node RN mode of operation to it is characterized in that said DeNB indicates said RN replacement mode of operation, is specially according to claim 3:
Said DeNB is according to the device capability information of the device capability information of self, the said RN that gets access to and the mode of operation of said RN report; Confirm the mode of operation that said RN will reset; And the mode of operation that will reset of confirm is sent to RN through the RRC signaling; The mode of operation of indicating said RN to reset, again by RN with self working mode reset to confirm, the said mode of operation that will reset of the DeNB that obtains.
6. said negotiation is confirmed the method for via node RN mode of operation to it is characterized in that said DeNB indicates said RN replacement mode of operation, is specially according to claim 3:
Said DeNB indicates said RN self not support said pre-configured mode of operation through the RRC signaling; After said RN receives said indication, the replacement self working mode, and the mode of operation after will resetting reports said DeNB; Afterwards, said DeNB confirms to support the mode of operation after said RN resets, notifies the mode of operation after said RN has accepted said replacement.
7. each said negotiation is confirmed the method for via node RN mode of operation to it is characterized in that if said DeNB indicates said RN to reset to full-duplex mode, said method also comprises according to claim 3 to 6:
Said DeNB indicates the operating frequency of said RN replacement Un interface and/or the operating frequency of Uu interface.
8. each said negotiation is confirmed to it is characterized in that the method for via node RN mode of operation according to claim 3 to 6, and before the said RN replacement mode of operation of indication, said method also comprises:
Said RN initiatively reports self device capability information through the RRC signaling to DeNB, accomplishes said DeNB obtaining the device capability information of said RN; Perhaps, said DeNB inquires about the device capability information of said RN through the RRC signaling, gives said DeNB by said RN with the device capability information reporting of self again, accomplishes said DeNB obtaining the device capability information of said RN.
9. the method for via node RN mode of operation is confirmed in said according to Claim 8 negotiation, it is characterized in that, said method also comprises:
When said DeNB obtains the device capability information of said RN, also obtain configuration information and/or the configuration information of Un interface of the Uu interface of said RN.
10. said negotiation is confirmed to it is characterized in that the method for via node RN mode of operation according to claim 1, and before DeNB report self working mode, said method also comprises at said RN:
Through manual type is the pre-configured mode of operation of said RN, and perhaps, said RN obtains from the operation management maintain system of self and wants pre-configured mode of operation, accomplishes the pre-configured of self mode of operation.
11. the method for via node RN mode of operation is confirmed in said negotiation according to claim 10, it is characterized in that, the mode of operation of pre-configured said RN comprises:
Said RN obtains the device capability information of DeNB, and according to the device capability information of the DeNB that gets access to and the device capability information of self, accomplishes the pre-configured of said RN mode of operation.
12. the method for via node RN mode of operation is confirmed in said negotiation according to claim 11, it is characterized in that, said RN obtains the device capability information of DeNB, comprising:
Said DeNB increases the device capability information of self in the information of said RN broadcasting, makes RN can from the broadcast message of said DeNB, get access to the device capability information of said DeNB.
13. the method for via node RN mode of operation is confirmed in said negotiation according to claim 1, it is characterized in that, said method also comprises:
In the time of need carrying out the RRC connection reconstruction, after accomplishing the process of rebuilding, said DeNB indicates said RN replacement mode of operation through the RRC signaling.
14. a system that consults to confirm via node RN mode of operation is characterized in that said system comprises: RN and DeNB, said RN comprises the report unit, said DeNB comprises definite unit and notification unit, wherein,
The report unit is used for to the pre-configured mode of operation of said DeNB report self;
Confirm the unit, be used for confirming the mode of operation of said RN according to the mode of operation of said report unit report and the device capability information of said DeNB self;
Notification unit is used to notify the said definite unit of said RN determined mode of operation.
15. the system of via node RN mode of operation is confirmed in said negotiation according to claim 14, it is characterized in that said notification unit also is used to indicate said RN replacement mode of operation;
Said definite unit; Specifically be used for; The mode of operation of being reported according to device capability information and the said report unit of said DeNB self; Judge whether said DeNB supports the mode of operation that said RN is pre-configured,, then indicate said RN replacement mode of operation through said notification unit if do not support;
If support, confirm that then the mode of operation of said RN is said pre-configured mode of operation, and notify said RN self to accept said pre-configured mode of operation through said notification unit; Perhaps, indicate said RN replacement mode of operation.
16. the system of via node RN mode of operation is confirmed in said negotiation according to claim 14, it is characterized in that, said RN also comprises: reset cell is used to the mode of operation of said RN of resetting;
Said DeNB also comprises: first acquiring unit is used to obtain the device capability information of said RN;
Said notification unit; Specifically also be used for; The device capability information of the said RN that gets access to according to device capability information and said first acquiring unit of said DeNB self; The mode of operation of indicating the reset cell of said RN to reset, and the mode of operation of said RN is reset to the indicated mode of operation of said notification unit by the reset cell of said RN.
17. the system of via node RN mode of operation is confirmed in said negotiation according to claim 14; It is characterized in that; Said RN also comprises: pre-configured unit, and being used for through manual type is the pre-configured mode of operation of said RN, perhaps; Want pre-configured mode of operation through from the operation management maintain system of said RN, obtaining, accomplish the pre-configured of said RN mode of operation.
18. the system of via node RN mode of operation is confirmed in each said negotiation according to claim 14 to 17, it is characterized in that said RN also comprises: second acquisition unit is used to obtain the device capability information of DeNB;
Said pre-configured unit, the device capability information of the DeNB that specifically is used for getting access to according to said second acquisition unit and the device capability information of said RN self are accomplished the pre-configured of said RN mode of operation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102874416A CN102404100A (en) | 2010-09-16 | 2010-09-16 | Method and system of negotiating and determining operating mode of RN (Role Network) |
| PCT/CN2011/077251 WO2012034452A1 (en) | 2010-09-16 | 2011-07-18 | Method and system for determining operation mode of rn through negotiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010102874416A CN102404100A (en) | 2010-09-16 | 2010-09-16 | Method and system of negotiating and determining operating mode of RN (Role Network) |
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| WO (1) | WO2012034452A1 (en) |
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