CN101909338A - Terminal identification acquisition method between base stations and terminal identification method - Google Patents
Terminal identification acquisition method between base stations and terminal identification method Download PDFInfo
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Abstract
The invention discloses a terminal identification acquisition method between base stations and a terminal identification method. In the switching process of the terminal identification acquisition method, a target base station transmits a first message to a source base station, and the first message carries identification information which is used in the target cell of the target base station by a first user device. By using the invention, the source base station can find out the terminal identification which is used by the user device in the target cell.
Description
Technical field
The present invention relates to the communications field, particularly, relate to terminal iidentification acquisition methods and terminal identification method between the base station.
Background technology
Long Term Evolution (Long Term Evolution, abbreviating LTE as) network is by E-UTRAN (EvolvedUniversal Terrestrial Radio Access Network, the universal land radio access web of evolution), base station (Evolved NodeB, abbreviate eNB as) and packet switching center (the Evolved Packet Core of evolution, abbreviate EPC as) form the network configuration flattening.Wherein, E-UTRAN comprises the set of the eNB that is connected by the S1 interface with EPC, can connect by X2 between the eNB.S1, X2 are logic interfacing.An EPC can manage one or more eNB, and an eNB also can be controlled by a plurality of EPC, and an eNB can manage one or more sub-districts.
MANET (Self Organizing Network, abbreviating SON as) technology is a kind of technology of carrying out network configuration and optimization automatically, its main feature is self-configuring and self-optimizing, the application of this technology in LTE makes that the base station can be according to the automatic configuration network parameter of certain measurement, and carry out Automatic Optimal according to the network change situation, thereby keep the network performance optimum, can save lot of manpower and material resources simultaneously.
Relevant with self-optimizing is handoff technique, switching can comprise the switching of LTE internal system and the switching between the LTE system, wherein, switching between system refers to UTRAN or GSM (Global System For Mobile Communication, global system for mobile communications) or the switching of CDMA (Code Division Multiple Access, code division multiple access insert) system.
In handoff procedure, may exist and switch too early scene.Switching generally occurs in subscriber equipment (User Equipment abbreviates UE as) too early and has entered the smaller isolated island sub-district of the coverage in the Serving cell.After switching may cause switching to Target cell too early Radio Link Failure (radio link failure abbreviates RLF as) can take place again, this can influence user's performance.
It is as follows that too early method is switched in present judgement: Radio Link Failure just takes place switching to Target cell in (1) UE in the near future; (2) UE carries out Radio Resource control (Radio Resource Control abbreviates RRC as) reconstruction to the cell-of-origin, can judge that by above-mentioned two steps the change action of UE from the cell-of-origin to the Target cell is too early.As shown in Figure 1, Radio Link Failure has just taken place after switching to sub-district Cell a under the eNB A in the UE sub-district Cell b under eNB B soon among Cell a, UE has selected sub-district Cell b to carry out the RRC reconstruction then, just gets back to again and carries out the RRC reconstruction in the sub-district before switching.This just illustrates that UE is too early to the switching of sub-district Cell a from sub-district Cell b.
But, because eNB B only knows the sign that UE uses in the cell-of-origin, and can't know the sign that UE uses at Target cell, therefore, whether eNB B can't identification carries out the UE that RRC rebuilds (its use be sign at Target cell) at sub-district Cell b is the UE (its use be sign in the cell-of-origin) that switches to Cell a from Cellb, and it is too early also just can't to judge whether to have taken place to switch.
Summary of the invention
Consider the eNB that exists in the correlation technique can't know the problem of the sign that UE uses at Target cell and propose the present invention.For this reason, the present invention aims to provide the terminal iidentification acquisition methods between a kind of eNB B, to address the above problem.
According to an aspect of the present invention, provide terminal iidentification acquisition methods between a kind of base station.In the method, in handoff procedure, target BS sends first message to source base station, and carries the identification information that first subscriber equipment uses in first message in the Target cell of target BS.
Preferably, first message is switching request acknowledgement message, and this switching request acknowledgement message is used to notify first subscriber equipment to switch.
Preferably, above-mentioned identification information is carried in the content that passes through first subscriber equipment in the handoff request acknowledgment message.
Preferably, first message is the customer equipment context release message, and the customer equipment context release message is used to indicate source base station to discharge the contextual information of first subscriber equipment at source base station.
Preferably, said method also comprises: source base station starts timer under the triggering of target BS, preserves the identification information in first message before timer expiry; Before timer expiry, source base station receives from the Radio Resource control of second subscriber equipment and rebuilds request message, and wherein, Radio Resource control is rebuild in the request message and carry the identification information that second subscriber equipment uses in Target cell; Source base station judges whether the identification information in first message is consistent with the identification information in the Radio Resource control reconstruction request message.
Preferably, said method also comprises: the source base station setting is corresponding to the counter and the count threshold of Target cell; If judge that the identification information in first message is consistent with the identification information in the Radio Resource control reconstruction request message, then the count value with counter adds 1; When the count value of counter surpasses count threshold in the given time, carry out the handoff parameter Optimizing operation.
Preferably, above-mentioned identification information comprises Cell Radio Network Temporary Identifier/Identity, Cell-RNTI.
Preferably, identification information also comprises the physical area address and/or the short medium access control integrity verification value of Target cell.
According to a further aspect in the invention, also provide a kind of terminal identification method.In the method, after first subscriber equipment switched to target BS, source base station started timer under the triggering of target BS, before timer expiry, preserved the identification information of first subscriber equipment at source base station; Source base station receives from the Radio Resource control of second subscriber equipment and rebuilds request message, and wherein, Radio Resource control is rebuild in the request message and carried the identification information of second subscriber equipment at source base station; The identification information that source base station is preserved this locality is rebuild the identification information that carries in the request message with Radio Resource control and is compared, and discerns to carry out subscriber equipment.
Preferably, if the identification information that carries in the local identification information of preserving and the Radio Resource control reconstruction request message is consistent, then first subscriber equipment and second subscriber equipment are same subscriber equipment.
Preferably, above-mentioned identification information comprises: the physical area address of Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, first subscriber equipment or sub-district, the second subscriber equipment place, medium access control integrity verification value.
By above-mentioned at least one technical scheme of the present invention, source base station can be known the terminal iidentification that UE uses at Target cell, and then can be according to this terminal iidentification of knowing, distinguish whether the UE that carries out the RRC reconstruction in the cell-of-origin is the UE that has just switched to Target cell from the source region, thereby can judge whether to have taken place switches too early.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the UE switching schematic diagram according to the embodiment of the invention;
Fig. 2 is the message interaction process figure according to the embodiment of the invention two and embodiment three;
Fig. 3 is the message interaction process figure according to the embodiment of the invention four;
Fig. 4 is the message interaction process figure according to the embodiment of the invention five.
Embodiment
In handoff procedure, with the scene shown in Fig. 1 is example, eNB B can keep the identification information of UE in a period of time after UE switches to Cell a (Target cell) from sub-district Cell b (cell-of-origin), if during this period of time UE rebuilds by RRC again and gets back to sub-district Cell b, eNB B just can judge that UE is too early to the switching of Cell a from sub-district Cell b so.But in fact, after switching to Cell a, just adopted UE new identification information, UE RRC rebuild in the message be the identification information of UE in Cell a, what eNB B kept then is the identification information of UE at Cell b, therefore, whether eNB B is to be the UE that has just switched to Cell a from sub-district Cell b according to the identification information judgment current UE of UE.
Given this, the embodiment of the invention provides the acquisition methods of the terminal iidentification between a kind of eNB, by technical scheme of the present invention, source eNB can be known the identification information of UE in the Target cell that switches to, thereby follow-up eNB can be according to the identification information of UE, distinguish whether the UE that carries out the RRC reconstruction in the cell-of-origin is the UE that has just switched to Target cell from the source region, thereby can judge whether to have taken place switches too early.
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, if do not conflict, the feature among the embodiment of the invention and the embodiment can make up mutually.
Fig. 1 has provided the switching schematic diagram of UE, and wherein, UE switches to sub-district Cell a under the target BS eNB A from the sub-district Cell b under the source base station eNB B.In embodiments of the present invention, target BS (for example, eNB A shown in Figure 1) can (for example be notified to source base station by message is used UE in Target cell identification information, eNBB shown in Figure 1), the message here can be existing message in the present communication technology, also can be the message that is exclusively used in the identification information that transmission UE uses in Target cell that increases newly.In embodiments of the present invention, will be that example describes with existing message.For example, message used herein can be to switch to prepare to confirm that (HANDOVER REQUESTACKNOWLEDGE) message, customer equipment context discharge (UE context Release) message, RRC rebuilds request message etc.
Embodiment one
In this embodiment, target BS passes through HANDOVER REQUESTACKNOWLEDGE message the identification information notification source base station of UE at Target cell.As shown in Figure 2, concrete implementation procedure is as follows:
(1) UE is in connected state in the sub-district Cell b that eNB B is had jurisdiction over, eNB B reports according to the measurement of UE, decision is initiated to the switching of the sub-district Cell a under the eNB A, and eNBB sends handover preparation request message to eNB A, requires eNB A to prepare the UE resource needed under Cell a.
(2) after eNB A receives handoff request preparation message, in Target cell Cell a, prepare resource for this UE, if prepare successfully, then return to switch and prepare acknowledge message to eNB B, and in this switching preparation acknowledge message, carry the identification information of this UE at Target cell Cell a, preferably, the identification information of the UE here comprises C-RNTI, further, also comprise short MAC integrity verification value (shortMAC-I, short MediumAccess Controlintegrity protection), Duan MAC integrity verification value is used for carrying out verification in the link re-establishment process.
(3) after eNB B receives that acknowledge message is prepared in switching that eNB A returns, obtain the identification information of UE in Target cell Cell a wherein, and send switching command, notice UE switches.So far, eNB B has got access to the identification information of UE in Target cell.
(4) behind Target cell Cell a, eNB A sends UE context Release message for eNB B to UE at successful switch, and notice eNB B discharges the contextual information of UE at Cell b.After eNB B receives this message, can open a timer, behind timer expiry, discharge the identification information of the local UE that preserves again at Target cell Cell a.
(5) UE is after switching to Target cell Cell a, and after Radio Link Failure took place, UE can carry out RRC and rebuild upright.UE rebuilds in upright request (RRC ConnectionReestablishment Request) message at RRC, can identify (UE-Identity) by carried terminal, comprise Radio Network Temporary Identifier (the Cell Radio Network TemporaryIdentifier of UE in the sub-district, abbreviate C-RNTI as), short MAC integrity verification value (short MediumAccess Control integrity protection, abbreviate shortMAC-I as) and cell physical address (Physical Cell Identity abbreviates PCI as).Wherein, for C-RNTI, under the scene of handoff failure, it is distributed by the cell-of-origin, and under other scenes, it is by triggering cell allocation that RRC rebuilds.For PCI, under the scene of handoff failure, it is meant the physical address of cell-of-origin, and under other scenes, it is the physical address that triggers the sub-district of RRC reconstruction.
In this embodiment, if Radio Link Failure has just taken place in this UE soon after switching to Target cell Cell a, and UE has selected sub-district Cell b to carry out the RRC reconstruction, just get back to again and carry out the RRC reconstruction in the sub-district before switching, then eNB B rebuilds the UE identification information (identification information of UE in Target cell) in the request message and prepares UE identification information in the acknowledge message by the switching that eNB A returns according to the RRC of UE, confirm this two identification information unanimities, promptly, corresponding to same UE, illustrate that then this UE switches away from Cell b, it is too early to the switching of Cell a from Cell b to judge that thus this UE carries out.
Embodiment two
In this embodiment, source base station reads the content of switching in the container of preparing among the affirmation HANDOVERREQUEST ACKNOWLEDGE that passes through UE (Container), obtains out the identification information of UE at Target cell.The implementation procedure of this embodiment can be understood with reference to the flow chart of Fig. 2.
(1) UE is in connected state in the sub-district Cell b that eNB B is had jurisdiction over, eNB B reports according to the measurement of UE, decision is initiated to the switching of Cell a in sub-district under the eNB A, and eNB B sends handover preparation request message to eNB A, requires eNB A to prepare the UE resource needed under Cell a.
(2) after eNB A receives handoff request preparation message, in Target cell Cell a, prepare resource for this UE, if prepare successfully, then return and switch to prepare acknowledge message to eNB B, in this message, pass through in the content of UE and carry the identification information of UE at Target cell.Source base station reads the content of switching in the container of preparing among the affirmation HANDOVER REQUESTACKNOWLEDGE that passes through UE (Container), obtains out the identification information of UE at Target cell, and preferably, the identification information of UE is meant C-RNTI here.
(3) eNB B receives after switching that eNB A returns prepares acknowledge message, sends switching command, and notice UE switches.
(4) behind Target cell Cell a, eNB A sends UE context Release message to eNB B to UE at successful switch, and notice eNB B discharges the contextual information of UE at Cell b.After eNB B receives this message, can open a timer, behind timer expiry, discharge the identification information of the UE of reservation again at Target cell Cell a.
(5) if Radio Link Failure has just taken place in this UE soon after switching to Target cell Cell a, and UE has selected sub-district Cell b to carry out the RRC reconstruction, that is to say, get back to again and carry out the RRC reconstruction in the sub-district before switching, then eNB B rebuilds the UE identification information in the request message and switches the UE identification information of preparing in the acknowledge message that obtains according to the RRC of UE, confirm that this UE is the UE that has just switched to Cell a from Cell b, it is too early to the switching of Cell a from Cell b to think that then this UE carries out.
Embodiment three
In this embodiment, target BS passes through terminal context release message with the identification information notification source base station of UE at Target cell.Fig. 3 has provided the implementation procedure schematic diagram of this embodiment, as shown in Figure 3:
(1) UE is in connected state in the sub-district Cell b that eNB B is had jurisdiction over, eNB B reports according to the measurement of UE, decision is initiated to the switching of Cell a in sub-district under the eNB A, and eNB B sends handover preparation request message to eNB A, requires eNB A to prepare the UE resource needed under Cell a.
(2) after eNB A receives that handoff request is prepared message, in Target cell Cell a,,, return then for eNB B and switch the preparation acknowledge message if prepare successfully for this UE prepares resource.
(3) after eNB B receives that acknowledge message is prepared in switching that eNB A returns, send switching command, notice UE switches.
(4) behind Target cell Cell a, eNB A sends UE context Release message for eNB B to UE at successful switch, and notice eNB B discharges the contextual information of this UE at Cell b.In this UE context Release message, include the identification information of this UE at Target cell Cell a, preferably, the identification information of the UE here is meant C-RNTI, further, also comprise short MAC integrity verification value (shortMAC-I, shortMedium Access Control integrity protection).After eNB B receives this message, can open a timer, before timer expiry, preserve the identification information of UE at Target cell Cell a.
(5) if Radio Link Failure has just taken place in this UE soon after switching to Target cell Cell a, and UE has selected sub-district Cell b to carry out the RRC reconstruction, just get back to again and carry out the RRC reconstruction in the sub-district before switching, then eNB B is according to UE identification information in the RRC reconstruction request message of UE and the UE identification information in the UE context Release message, confirm that this UE is the UE that has just switched to Cell a from Cell b, it is too early to the switching of Cell a from Cell b to think that then this UE carries out.
Embodiment four
In this embodiment, UE carries the identification information of UE at Target cell in RRC reconstruction request message when carrying out the RRC reconstruction, also carry the identification information of UE in the cell-of-origin.Different with above three embodiment is, in three above embodiment, be according to UE the sign of Target cell judge before switching the sub-district (promptly, the cell-of-origin) whether the sub-district of initiation RRC reconstruction is the UE that switches to Target cell from this cell-of-origin, and in this embodiment, be to carry out above-mentioned judgement according to UE in the sign of cell-of-origin.The technical scheme that this embodiment provided also provides a kind of implementation of terminal recognition simultaneously.Fig. 5 has provided the realization flow of this embodiment, as shown in Figure 5:
(1) UE is in connected state in the sub-district Cell b that eNB B is had jurisdiction over, eNB B reports according to the measurement of UE, decision is initiated to the switching of Cell a in sub-district under the eNB A, and eNB B sends handover preparation request message to eNB A, requires eNB A to prepare the UE resource needed under Cell a.
(2) after eNB A receives handoff request preparation message, in Target cell Cell a,,, then return to switch and prepare acknowledge message to eNB B if prepare successfully for this UE prepares resource.Preferably, can carry the identification information of this UE in this message at Target cell Cell a.
(3) after eNB B receives that acknowledge message is prepared in switching that eNB A returns, send switching command, notice UE switches.
(4) behind Target cell Cell a, eNB A sends UE context Release message to eNB B to UE at successful switch, and notice eNB B discharges the contextual information of this UE at Cell b.After eNB B receives this message, can open a timer, regularly discharge the identification information of the local UE that preserves again behind the overtime device at cell-of-origin Cell b.
If Radio Link Failure has just taken place after switching to Target cell Cell a this UE soon, and UE selected sub-district Cell b to carry out RRC to rebuild, that is to say, UE gets back to again and carries out RRC in the sub-district before switching and rebuild.Then rebuild in the request message at RRC, carry the identification information of UE at Target cell, also carry the identification information of UE in the Cell b of cell-of-origin, preferably, the identification information of the UE here is meant the physical area address of C-RNTI and sub-district, UE place, further, can also comprise short MAC integrity verification value (shortMAC-I, short Medium Access Control integrity protection).
ENB B rebuilds the identification information of UE in Cell b that the UE in the request message preserves according to the RRC of UE in the identification information of cell-of-origin and eNB B, judge two identification information unanimities, confirm that then this UE has just switched to the UE of Cell a from Cell b, and then it is too early to the switching of Cell a from Cell b to judge that this UE carries out.
Described above is that source base station obtains the identification information of UE and then according to the process that relatively judges whether to have taken place to switch too early situation to identification information, as mentioned above.This identification information can be the identification information of UE at Target cell, and for example, embodiment one to embodiment three, also can be the identification information of UE in the cell-of-origin, and for example, embodiment four.
After having carried out whether switching too early judgement, eNB B can add up the too early number of switching that arrives same Target cell in the certain hour, improve performance of handoffs so that further optimize relevant handoff parameter, this can realize by the timer sum counter is set.For example, source base station can be provided with counter and the count threshold corresponding to Target cell; If judge and taken place to switch too early that then the count value with its counter adds 1; When the count value of this counter surpasses count threshold in the given time, carry out the handoff parameter Optimizing operation.Like this, can further improve systematic function.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. the terminal iidentification acquisition methods between a base station is characterized in that in handoff procedure, target BS sends first message to source base station, and carry the identification information that uses in the Target cell of first subscriber equipment at target BS in described first message.
2. method according to claim 1 is characterized in that, described first message is switching request acknowledgement message, and described switching request acknowledgement message is used to notify described first subscriber equipment to switch.
3. method according to claim 2 is characterized in that, described identification information is carried in the content that passes through described first subscriber equipment in the described handoff request acknowledgment message.
4. method according to claim 1, it is characterized in that, described first message is the customer equipment context release message, and described customer equipment context release message is used to indicate described source base station to discharge the contextual information of described first subscriber equipment at described source base station.
5. according to each described method in the claim 1 to 3, it is characterized in that described method also comprises:
Described source base station starts timer under the triggering of described target BS, preserve the described identification information in described first message before described timer expiry;
Before described timer expiry, described source base station receives from the Radio Resource control of second subscriber equipment and rebuilds request message, wherein, described Radio Resource control is rebuild in the request message and carry the identification information that described second subscriber equipment uses in described Target cell;
Described source base station judges whether the described identification information in described first message is consistent with the described identification information in the described Radio Resource control reconstruction request message.
6. method according to claim 5 is characterized in that, described method also comprises:
Described source base station setting is corresponding to the counter and the count threshold of described Target cell;
If judge that the described identification information in first message is consistent with the described identification information in the described Radio Resource control reconstruction request message, then the count value with described counter adds 1;
When the count value of described counter surpasses described count threshold in the given time, carry out the handoff parameter Optimizing operation.
7. according to each or the described method of claim 6 in the claim 1 to 4, it is characterized in that described identification information comprises Cell Radio Network Temporary Identifier/Identity, Cell-RNTI.
8. method according to claim 7 is characterized in that, described identification information also comprises the physical area address and/or the short medium access control integrity verification value of Target cell.
9. a terminal identification method is characterized in that, comprising:
After first subscriber equipment switched to target BS, source base station started timer under the triggering of described target BS, before described timer expiry, preserved the identification information of described first subscriber equipment at source base station;
Described source base station receives from the Radio Resource control of second subscriber equipment and rebuilds request message, and wherein, described Radio Resource control is rebuild in the request message and carried the identification information of described second subscriber equipment at source base station;
The described identification information that described source base station is preserved this locality is rebuild the described identification information that carries in the request message with the control of described Radio Resource and is compared, and discerns to carry out subscriber equipment.
10. method according to claim 9, it is characterized in that, if the described identification information that carries in the local described identification information of preserving and the described Radio Resource control reconstruction request message is consistent, then described first subscriber equipment and described second subscriber equipment are same subscriber equipment.
11. according to claim 9 or 10 described methods, it is characterized in that described identification information comprises: physical area address, the medium access control integrity verification value of Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, described first subscriber equipment or sub-district, the described second subscriber equipment place.
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| CN113596941A (en) * | 2017-09-17 | 2021-11-02 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
| CN112218286A (en) * | 2019-07-09 | 2021-01-12 | 大唐移动通信设备有限公司 | Terminal capability identifier mapping method, terminal capability query method and device |
| CN112218286B (en) * | 2019-07-09 | 2021-07-23 | 大唐移动通信设备有限公司 | Terminal capability identifier mapping method, terminal capability query method and device |
| CN113365317A (en) * | 2020-03-04 | 2021-09-07 | 海能达通信股份有限公司 | Communication error identification method, communication base station and device with storage function |
| CN113365317B (en) * | 2020-03-04 | 2023-03-14 | 海能达通信股份有限公司 | Communication error identification method, communication base station and device with storage function |
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