CN106255160A

CN106255160A - Rebuild the method and apparatus that RRC connects

Info

Publication number: CN106255160A
Application number: CN201610823055.1A
Authority: CN
Inventors: 陈洪强
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-09-14
Filing date: 2016-09-14
Publication date: 2016-12-21

Abstract

The embodiment of the invention discloses a kind of method and apparatus rebuilding RRC connection, the method includes: in the case of needs carry out rebuilding described RRC connection, terminal unit determines the Target cell belonging under consolidated network equipment covers with current service cell at least one first community to be selected；Described terminal unit is rebuild and is connected with the described RRC of described Target cell, can improve the success rate rebuilding RRC.

Description

Rebuild the method and apparatus that RRC connects

Technical field

The present invention relates to the communications field, the method connected particularly to the reconstruction radio resource control RRC in the communications field And device.

Background technology

Long Term Evolution (Long Term Evolution, referred to as " LTE ") system is by the mould originally providing only data service Formula is changed into not only provides data service but also provide the pattern of speech business, and in data service, user is for lost network, reconstruction failure The data caused temporarily are interrupted and insensitive, or very difficult perception；But developing into speech business, user just can perception pair completely In lost network, reconstruction failure situation cause interrupted, gulp down word, even call drop phenomenon, cause at Consumer's Experience poor.

After Radio Link Failure, terminal unit initiates wireless heterogeneous networks, and (Radio Resource Control is called for short " RRC ") connection reconstruction, prior art is rebuild after selecting community to be selected, but community to be selected not necessarily remains with terminal The contextual information of equipment, it is thus impossible to ensure the success rate rebuild.

Summary of the invention

The method and apparatus that the reconstruction RRC that the embodiment of the present invention provides connects, can improve and rebuild the success that RRC connects Rate.

First aspect, it is provided that a kind of method rebuilding RRC connection, the method includes: when needs carry out rebuilding described RRC In the case of connection, terminal unit determines that belonging to consolidated network with current service cell sets at least one first community to be selected Target cell under standby covering；Described terminal unit is rebuild and is connected with the described RRC of described Target cell.

Therefore, select at least one community to be selected belong to consolidated network equipment cover under Target cell, so, Belong to, with current service cell, the community that network equipment covers and preserve the contextual information of terminal unit, so, can To improve the success rate rebuilding RRC.

Alternatively, terminal unit determines at least one first community to be selected and belongs to consolidated network with current service cell Before Target cell under equipment covering, select at least one first community to be selected meeting S criterion；Or terminal unit exists At least one first community to be selected is selected the first community to be selected that consolidated network equipment covers, then covers at consolidated network equipment First community to be selected of lid selects to meet the Target cell of S criterion.

Therefore, prior art is when the channel quality of certain community meets S criterion, it is possible to be selected as resident little District, terminal unit rebuilds in persistent district, and the embodiment of the present invention meets at least one of S criterion and first treats selecting When selecting community, do not rebuild, and be to continue with determining at least one the first community to be selected and current service cell genus In the Target cell that the same network equipment covers, or the embodiment of the present invention can belong to current service cell selecting After the community that consolidated network equipment covers, selecting to meet the Target cell of S criterion, so, belonging to together with current service cell The contextual information of terminal unit is preserved, as such, it is possible to improve the success rebuilding RRC in the community that a network equipment covers Rate.

Alternatively, Srxlen value is more than zero, and represents and meet S criterion, Srxlen=when Squal value is more than zero Qrxlevmeas-(Qrxlevmin+Qrxlevminoffset)–Pcompensation；Squal=Qqualmeas (Qqualmin+Qqualminoffset).Wherein, Qrxlevmeas represents the Reference Signal Received Power of the community detected (Reference Signal Receiving Power is called for short " RSRP "), Qrxlevmin is that the minimum of community accepts level, Generally-128dbm；Qrxlevminoffset represents the minimum biasing accepting level, is traditionally arranged to be 0；Pcompensation =max (Pmax-Pumax, 0), Pmax represents the maximum transmission power that terminal unit allows in current service cell；Pumax Represent the maximum uplink transmission power of terminal unit；Qqualmeas refers to the Reference Signal Received Quality (Reference detected Signal Receiving Quality, is called for short " RSRQ ")；Qqualmin refers to the reference signal quality of minimum acceptance, typically sets For-18, Qqualminoffset refers to that minimum Reference Signal Received Quality biases, and is typically also and is set to 0.Srxlen value is more than Zero, and when Squal value is more than zero, represent that meeting S criterion, i.e. first threshold can be both to have met Srxlen value to be more than zero, expires again The threshold value of the foot Squal value power more than zero.

Further, for some specific business, such as speech business, more sensitive to RRC connection failure, such as RRC reconstruction failure can cause discontinuously, gulping down word, even the phenomenon of call drop, utilizes the embodiment of the present invention can improve the success of RRC Rate, can ensure that the seriality of business further, improves Consumer's Experience.

Alternatively, need to carry out rebuilding that described RRC connects it may is that at least one in following state: radio chains Road failure, handoff failure, tracing section updating (Tracking Area Update, be called for short " TAU ") failure, authentication ciphering failure and RRC connects reconfiguration failure.

In the first possible implementation of first aspect, at least one is first to be selected described for described terminal unit Community determines the Target cell belonging under consolidated network equipment covers with current service cell, including: described terminal unit exists At least one first community to be selected described determines and belongs at least one under consolidated network equipment covers with current service cell Second community to be selected；Described terminal unit determines institute according to the Reference Signal Received Power of at least one the second community to be selected described State Target cell.

In conjunction with the above-mentioned possible implementation of first aspect, in the implementation that the second of first aspect is possible, Described terminal unit determines described Target cell according to the Reference Signal Received Power of at least one the second community to be selected described, bag Include: described terminal unit is by the second maximum for Reference Signal Received Power at least one second community to be selected described community to be selected It is defined as described Target cell.

In conjunction with the above-mentioned possible implementation of first aspect, in the third possible implementation of first aspect, Described terminal unit determines that belonging to consolidated network equipment with current service cell covers at least one first community to be selected described At least one second community to be selected under Gai, including: described terminal unit according to the identification information of current service cell and described The identification information of at least one the first community to be selected determines and described current service at least one first community to be selected described Community belongs at least one second community to be selected under consolidated network equipment covers.

In conjunction with the above-mentioned possible implementation of first aspect, in the 4th kind of implementation of first aspect, described end End equipment according to the identification information of current service cell and the identification information of at least one the first community to be selected described described extremely Few first community to be selected determines and belongs at least one under consolidated network equipment covers the with described current service cell Two communities to be selected, including: determine in cell identity information for representing affiliated at least one first community to be selected described The information of the network equipment with in the identification information of described current service cell for representing that the information of the affiliated network equipment is identical At least one second community to be selected.

It is alternatively possible to according to the identification information of the current service cell of preservation in system message is used for representing currently clothes The identification information of other communities preserved in the information of the business network equipment belonging to community, with system message is used for represent affiliated The information of the network equipment compare, when the mark of at least one the second community to be selected at least one first community to be selected Time in information for representing that the information of the affiliated network equipment is identical with the identification information of current service cell, then it is assumed that at least one Individual second community to be selected and current service cell belong to the community that a network equipment covers, so, at least one determined Second community to be selected remains with the contextual information of terminal unit, further, it is possible to improve the success rate rebuild.

Further, terminal unit can be the terminal unit in LTE system, so can utilize SIB1 in system message First 20 of mark of current service cell carry out with in system message front the 20 of the mark of at least one the second community to be selected Relatively, current 20 the most identical time, it is believed that at least one second community to be selected and current service cell belong to a network and set The standby community covered.

In conjunction with the above-mentioned possible implementation of first aspect, in the 5th kind of implementation of first aspect, described Terminal unit determines the mesh belonging under consolidated network equipment covers with current service cell at least one first community to be selected Mark community before, described method also includes: terminal unit select power parameter more than first threshold described at least one first Community to be selected；Power parameter can be the Srxlen value in aforementioned S criterion and Squal value, such as this first threshold can be 0.

Second aspect, it is provided that a kind of method rebuilding RRC connection, the method includes: when needs carry out rebuilding described RRC In the case of connection, the community adjacent with current service cell at least one first community to be selected is defined as mesh by terminal unit Mark community；Described terminal unit is rebuild and is connected with the described RRC of described Target cell.

To a certain extent the probability of the contextual information that adjacent cell remains with terminal unit be higher than at least one first Community to be selected, the contextual information of terminal unit can be sent by the most adjacent base station by X2 interface, by least one the One community adjacent with current service cell in community to be selected is defined as Target cell, carries out as such, it is possible to improve terminal unit Rebuild the success rate of RRC.

In the first possible implementation of second aspect, described terminal unit by described at least one first treat Before selecting community adjacent with current service cell in community to be defined as Target cell, described method also includes: described terminal sets Standby determining whether there is at least one first community to be selected described belongs to consolidated network equipment with described current service cell Community under Fu Gaiing；Wherein, described terminal unit is by adjacent with current service cell at least one first community to be selected described Community be defined as Target cell, including: when described terminal unit determines do not have at least one first community to be selected described Belong to consolidated network equipment cover under community time, described terminal unit by least one first community to be selected described with described Adjacent community, current service cell is defined as described Target cell.

It is alternatively possible to determine at least one first community to be selected according to the cell ID in system message and do not belong to Community under consolidated network equipment covers, can be by the mark of current service cell and at least one the first community to be selected Mark is mated, if the mark of at least one the first community to be selected exists the community identical with current service cell mark, Then can be defined as Target cell by identifying identical community, such as by the cell identity information in the SIB1 in LTE system Determine.

In conjunction with the above-mentioned possible implementation of second aspect, in the implementation that the second of second aspect is possible, It is little that the community adjacent with current service cell at least one first community to be selected described is defined as target by described terminal unit District, including: described terminal unit determines adjacent with described current service cell at least one first community to be selected described At least one second community to be selected；Described terminal unit receives merit according to the reference signal of at least one the second community to be selected described Rate determines described Target cell.

In conjunction with the above-mentioned possible implementation of second aspect, in the third possible implementation of second aspect, Described terminal unit determines at least one adjacent with described current service cell at least one first community to be selected described Second community to be selected, including: the neighbour that metrical information is included at least one first community to be selected described by described terminal unit Community is defined as at least one second community to be selected described, and described metrical information is used for indicating described terminal unit and described terminal Channel quality between the adjacent cell of equipment.

In conjunction with the above-mentioned possible implementation of second aspect, in the 4th kind of possible implementation of second aspect, Described terminal unit determines at least one adjacent with described current service cell at least one first community to be selected described Second community to be selected, including: the adjacent cell that system message is included at least one first community to be selected by described terminal unit It is defined as at least one second community to be selected described.

In conjunction with the above-mentioned possible implementation of second aspect, in the 5th kind of possible implementation of second aspect, Described terminal unit determines described Target cell according to the Reference Signal Received Power of at least one the second community to be selected described, bag Include: described terminal unit is by the second maximum for Reference Signal Received Power at least one second community to be selected described community to be selected It is defined as described Target cell.

Further, terminal unit can be the terminal unit in LTE system, so can utilize SIB1 in system message First 20 of mark of current service cell carry out with in system message front the 20 of the mark of at least one the second community to be selected Relatively, current 20 when differing, it is believed that at least one second community to be selected and current service cell are not belonging to a network and set The standby community covered, then may further determine that not only in metrical information or in system message but also first to be selected at least one At least one in community second community to be selected, can improve the success rate rebuilding RRC to a certain extent.

In conjunction with the above-mentioned possible implementation of second aspect, in the 6th kind of possible implementation of second aspect, At described terminal unit, the community adjacent with current service cell at least one first community to be selected is defined as Target cell Before, described method also includes: described terminal unit select power parameter more than first threshold described at least one first treat Selecting community, power parameter can be the Srxlen value in aforementioned S criterion and Squal value.

The third aspect, it is provided that a kind of device rebuilding RRC, for performing any of above-mentioned first aspect or first aspect The possible method in implementation.Specifically, this device includes for performing any of above-mentioned first aspect or first aspect The unit of the possible method in implementation.

Fourth aspect, it is provided that a kind of device rebuilding RRC, for performing any of above-mentioned first aspect or first aspect The possible method in implementation.Specifically, this device includes for performing any of above-mentioned second aspect or second aspect The unit of the possible method in implementation.

5th aspect, it is provided that a kind of device rebuilding RRC, this equipment includes: receptor, transmitter, memorizer, process Device and bus system.Wherein, this receptor, this transmitter, this memorizer are connected by this bus system with this processor, and this is deposited Reservoir is used for storing instruction, and this processor, for performing the instruction of this memorizer storage, to control receptor reception signal, and is controlled Transmitter processed sends signal, and when this processor performs the instruction of this memorizer storage, this execution makes this processor hold Method in the most possible implementation of row first aspect or first aspect.

6th aspect, it is provided that a kind of device rebuilding RRC, this equipment includes: receptor, transmitter, memorizer, process Device and bus system.Wherein, this receptor, this transmitter, this memorizer are connected by this bus system with this processor, and this is deposited Reservoir is used for storing instruction, and this processor, for performing the instruction of this memorizer storage, to control receptor reception signal, and is controlled Transmitter processed sends signal, and when this processor performs the instruction of this memorizer storage, this execution makes this processor hold Method in the most possible implementation of row second aspect or second aspect.

7th aspect, it is provided that a kind of computer-readable medium, is used for storing computer program, and this computer program includes The instruction of the method in the most possible implementation performing first aspect or first aspect.

Eighth aspect, it is provided that a kind of computer-readable medium, is used for storing computer program, and this computer program includes The instruction of the method in the most possible implementation performing second aspect or second aspect.

Accompanying drawing explanation

In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, will make required in the embodiment of the present invention below Accompanying drawing be briefly described, it should be apparent that, drawings described below is only some embodiments of the present invention, for From the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings Accompanying drawing.

Fig. 1 shows the schematic diagram of the application scenarios of the embodiment of the present invention.

Fig. 2 shows the schematic diagram of the method for reconstruction RRC connection according to embodiments of the present invention.

Fig. 3 shows the schematic diagram of the method for another reconstruction RRC connection according to embodiments of the present invention.

Fig. 4 shows the schematic diagram of the method for another reconstruction RRC connection according to embodiments of the present invention.

Fig. 5 shows the schematic diagram of the method for another reconstruction RRC connection according to embodiments of the present invention.

Fig. 6 shows the schematic block diagram of the device of another reconstruction RRC connection according to embodiments of the present invention.

Fig. 7 shows the schematic block diagram of the device of another reconstruction RRC connection according to embodiments of the present invention.

Fig. 8 shows the schematic block diagram of the device of another reconstruction RRC connection according to embodiments of the present invention.

Fig. 9 shows the schematic block diagram of the device of another reconstruction RRC connection according to embodiments of the present invention.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly retouched State, it is clear that described embodiment is a part of embodiment of the present invention rather than whole embodiment.Based in the present invention Embodiment, the every other embodiment that those of ordinary skill in the art are obtained on the premise of not making creative work, All should belong to the scope of protection of the invention.

Should be understood that the technical scheme of the embodiment of the present invention can apply to various communication system, such as: global system for mobile telecommunications (Global System of Mobile communication, referred to as " GSM ") system, CDMA (Code Division Multiple Access, referred to as " CDMA ") system, WCDMA (Wideband Code Division Multiple Access, referred to as " WCDMA ") system, GPRS (general packet radio service) (General Packet Radio Service, referred to as " GPRS "), Long Term Evolution (Long Term Evolution, referred to as " LTE ") system, LTE FDD (Frequency Division Duplex, referred to as " FDD ") system, LTE time division duplex (Time Division Duplex, referred to as " TDD "), UMTS (Universal Mobile Telecommunication System, referred to as " UMTS ") or global interconnection inserting of microwave (Worldwide Interoperability for Microwave Access, referred to as " WiMAX ") communication system, and the communication system etc. being likely to occur future.

Should also be understood that in embodiments of the present invention, terminal unit can be referred to as subscriber equipment (User Equipment, Referred to as " UE "), terminal unit, mobile station (Mobile Station, referred to as " MS ") or mobile terminal (Mobile Terminal) etc., this terminal unit can be through wireless access network (Radio Access Network, referred to as " RAN ") with one Individual or multiple core net communicate, and such as, terminal unit can be mobile phone (or being referred to as " honeycomb " phone) or have shifting The computer etc. of dynamic terminal, such as, terminal unit can also is that portable, pocket, hand-held, built-in computer or car The mobile device carried, they and wireless access network exchange voice and/or data.

In embodiments of the present invention, the network equipment can be base station controller (the Base Station in GSM or CDMA Controller, is called for short " BSC "), it is also possible to be radio node controller in WCDMA (Radio Node Controller, It is called for short " RNC "), it is also possible to it is the evolved base station (Evolved Node B, referred to as " eNB or e-NodeB ") in LTE, this Invention does not limit.

Fig. 1 shows that embodiment of the present invention application scenarios illustrates Figure 100, including: terminal unit 110 and the network equipment 120, The network equipment 120 covers at least one community, and Ju Liaoliangge community exemplary for Fig. 1 is respectively community 1 and community 2, and it is medium and small District 1 is the current service cell of terminal unit 110, and community 2 carries out rebuilding the community of RRC, certain community 1 and little for terminal unit District 2 can be same community, Fig. 1 the most schematically citing, and community 1 and community 2 can be that consolidated network equipment covers Community, community 1 and community 2 all remain with the contextual information of terminal unit；Community 1 and community 2 can also be that heterogeneous networks sets The standby community covered, when community 1 and community 2 are not belonging to the community that consolidated network equipment covers, community 1 and community 2 can be Neighbor cell.When terminal unit 110 sends unsuccessfully at current area 1 upstream data, or when losing synchronization etc. with community 1, eventually End equipment 110 needs the community 2 selecting to rebuild RRC, and community 1 remains with the contextual information of terminal unit 110, and prior art is Select to rebuild the community 2 of RRC by S criterion, there is no guarantee that community 2 remains with the contextual information of terminal unit 110, because of This cannot improve the success rate of reconstruction, if can rebuild is successfully probability event.The embodiment of the present invention is according at same net The community that network equipment covers determines the community rebuilding RRC, or in neighbor cell, determines the community rebuilding RRC, Ke Yijin One step improves the probability rebuilding RRC.Further, the present invention be embodiment be select meet in the cell basis of S criterion, continue Select and belong to community or the neighbor cell that consolidated network equipment covers, or meeting the community belonging to consolidated network equipment Or neighbor cell is selected the community meeting S criterion, it is further able to improve the success rate rebuild.

Need when should be understood that Radio Link Failure to rebuild RRC, need when needing to rebuild RRC, TAU failure during handoff failure Rebuild RRC, need reconstruction RRC, RRC to connect when heavily joining unsuccessfully during authentication ciphering failure and be also required to rebuild RRC, the embodiment of the present invention May apply under any scene needing to rebuild RRC, this is not construed as limiting by the embodiment of the present invention.

Fig. 2 shows the method 200 that the reconstruction RRC that the embodiment of the present invention provides connects, and the method 200 includes:

S210, in the case of needs carry out rebuilding described RRC connection, terminal unit is at least one the first community to be selected Middle determine with current service cell belong to consolidated network equipment cover under Target cell.

S220, described terminal unit is rebuild and is connected with the described RRC of described Target cell.

As an alternative embodiment, before S210, described method 200 also includes: terminal unit selects power parameter More than at least one first community to be selected described in first threshold；Power parameter can be Srxlen value in aforementioned S criterion and Squal value.

Alternatively, Srxlen value is more than zero, and represents and meet S criterion, Srxlen=when Squal value is more than zero Qrxlevmeas-(Qrxlevmin+Qrxlevminoffset)–Pcompensation；Squal=Qqualmeas (Qqualmin+Qqualminoffset).Wherein, Qrxlevmeas represents the Reference Signal Received Power of the community detected (Reference Signal Receiving Power is called for short " RSRP "), Qrxlevmin is that the minimum of community accepts level, Generally-128dbm；Qrxlevminoffset represents the minimum biasing accepting level, is traditionally arranged to be 0；Pcompensation =max (Pmax-Pumax, 0), Pmax represents the maximum transmission power that terminal unit allows in current service cell；Pumax Represent the maximum uplink transmission power of terminal unit；Qqualmeas refers to the Reference Signal Received Quality (Reference detected Signal Receiving Quality, is called for short " RSRQ ")；Qqualmin refers to the reference signal quality of minimum acceptance, typically sets For-18, Qqualminoffset refers to that minimum Reference Signal Received Quality biases, and is typically also and is set to 0.Srxlen value is more than Zero, and Squal value more than zero time represent and meet S criterion.

Specifically, S210 can be cell ID in the system message retained according to terminal unit at least one the One community to be selected determines belong to that consolidated network equipment covers under Target cell, for example, it is possible to according in system message Cell identity information in SIB1 determines the Target cell belonged under consolidated network equipment covers.Certainly, terminal unit can also Preserve according to historical movement path and belong to the cell list of consolidated network equipment, first treat when terminal unit determines at least one After selecting community, at least one first community to be selected, community present in cell list can be defined as Target cell, Further, the community that Reference Signal Received Power present in cell list is maximum can be defined as Target cell.When So, it is also possible at least one first community to be selected, determine that belonging to consolidated network with current service cell sets by other means Target cell under standby covering, the embodiment of the present invention is not limited to this.

As an alternative embodiment, described terminal unit determine at least one first community to be selected described with currently Serving cell belongs to the Target cell under consolidated network equipment covers, including: described terminal unit described at least one first Community to be selected determines at least one second community to be selected belonging under consolidated network equipment covers with current service cell；Described Terminal unit determines described Target cell according to the Reference Signal Received Power of at least one the second community to be selected described.

As an alternative embodiment, described terminal unit is according to the reference signal of at least one the second community to be selected described Receive power and determine described Target cell, including: described terminal unit is by reference letter at least one second community to be selected described Number receive prominent second community to be selected be defined as described Target cell.

Specifically, terminal unit may determine that the community under the covering of multiple consolidated network equipment, now can select many Any one in individual community is as Target cell；The reference signal of at least one the second community to be selected can also receive according to this Power (Reference Signal Receiving Power is called for short " RSRP ") determines Target cell, for example, it is possible to select extremely Any one community as Target cell in few second community to be selected, it is also possible to select at least one second community to be selected RSRP is more than the community of predetermined threshold value as Target cell, it is also possible to select RSRP maximum at least one second community to be selected Community is not limited to this as Target cell, the embodiment of the present application.

As an alternative embodiment, described terminal unit determine at least one first community to be selected described with currently Serving cell belongs at least one second community to be selected under consolidated network equipment covers, including: described terminal unit is according to working as The identification information of front Serving cell and the identification information of at least one the first community to be selected described described at least one first treat Select and community determines at least one second community to be selected belonging under consolidated network equipment covers with described current service cell. I.e., it is possible to relatively each community is for identifying the information of the network equipment that this community belongs to, the network belonged to when mark community sets When standby information is identical, then it is assumed that belong to the community that a network equipment covers.Such as, the network equipment that mark community belongs to Can be community Identity, or the cell identification information of network configuration etc., the embodiment of the present invention is not limited to this.

As an alternative embodiment, described terminal unit is according to the identification information and described at least of current service cell The identification information of individual first community to be selected determines at least one first community to be selected described and belongs to described current service cell At least one second community to be selected under consolidated network equipment covers, including: at least one first community to be selected described Determine in cell identity information for representing in the affiliated information of the network equipment and the identification information of described current service cell For representing at least one second community to be selected that the information of the affiliated network equipment is identical.

Alternatively, can react to a certain extent due to the cell identity information in system message current persistent district with The relation of other communities, can be according to being used for representing currently clothes in the identification information of the current service cell preserved in system message The identification information of other communities preserved in the information of the business network equipment belonging to community, with system message is used for represent affiliated The information of the network equipment compare, when the mark of at least one the second community to be selected at least one first community to be selected Time in information for representing that the information of the affiliated network equipment is identical with the identification information of current service cell, then it is assumed that at least one Individual second community to be selected and current service cell belong to the community that a network equipment covers, so, at least one determined Second community to be selected remains with the contextual information of terminal unit, any one determined at least one second community to be selected at this Target cell can improve the success rate rebuilding RRC, it is possible to further determine at least one second community to be selected Community the highest for RSRP, as Target cell, can be improved the success rate of reconstruction simultaneously, can improve the quality of transmission data.

Fig. 3 shows the method 300 of the reconstruction RRC in the embodiment of the present invention, and the method 300 includes:

S310, in the case of needs carry out rebuilding described RRC connection, terminal unit is by least one the first community to be selected In the community adjacent with current service cell be defined as Target cell；

S320, described terminal unit is rebuild and is connected with the described RRC of described Target cell.

Alternatively, power parameter can be the power parameter in method 200, for avoiding repeating, does not makees at this.

As an alternative embodiment, before S310, described method 300 also includes: described terminal unit selects power Parameter is more than at least one first community to be selected described of first threshold, and power parameter can be the Srxlen in aforementioned S criterion Value and Squal value.

Specifically, at least one the first community to be selected may not have the contextual information of terminal unit, to a certain degree The probability of the contextual information that upper adjacent cell remains with terminal unit is higher than at least one chosen according to power parameter First community to be selected, the contextual information of terminal unit can be sent by the most adjacent base station by X2 interface, by least one In individual first community to be selected, the community adjacent with current service cell is defined as Target cell, as such, it is possible to improve terminal unit Carry out rebuilding the success rate of RRC.

As an alternative embodiment, will at least one first community to be selected described take with current at described terminal unit Before adjacent community, business community is defined as Target cell, described method 300 also includes: described terminal unit is described at least one Individual first community to be selected determines whether there is the community belonging under consolidated network equipment covers with described current service cell；Its In, the community adjacent with current service cell at least one first community to be selected described is defined as target by described terminal unit Community, including: do not belong to consolidated network equipment when described terminal unit determines at least one first community to be selected described During community under Fu Gaiing, described terminal unit is by adjacent with described current service cell at least one first community to be selected described Community be defined as described Target cell.

Specifically, when at least one first community to be selected does not belong to the covering of consolidated network equipment with current service cell Community time, as such, it is possible to determine at least one second community to be selected further in adjacent cell, it is alternatively possible to by system The adjacent cell that message includes is defined as Target cell, such as, determine that at least part of community at least one first community to be selected is Adjacent cell list in no SIB5 in LTE system, if, Target cell can be defined as in the community existed, it is possible to With by list is deposited RSRP in the cell maximum be defined as Target cell.Certainly, terminal unit can also move according to history Track preserves the list belonging to neighbor cell, after terminal unit determines at least one first community to be selected, and can be extremely Community present in neighbor cell list is defined as Target cell by few first community to be selected, further, permissible The community that Reference Signal Received Power present in neighbor cell list is maximum is defined as Target cell.It is of course also possible to it is logical Cross other modes and the community adjacent with current service cell at least one first community to be selected is defined as Target cell, this Bright embodiment is not limited to this.

As an alternative embodiment, described terminal unit by least one first community to be selected described with current service Adjacent community, community is defined as Target cell, including: described terminal unit at least one first community to be selected described really Fixed at least one second to be selected community adjacent with described current service cell；Described terminal unit according to described at least one The Reference Signal Received Power of two communities to be selected determines described Target cell.

Specifically, terminal unit may determine that the community under the covering of multiple consolidated network equipment, now can select many Any one in individual community is as Target cell；Target can also be determined by the RSRP of at least one the second community to be selected according to this Community, for example, it is possible to select any one community at least one second community to be selected as Target cell, it is also possible to select extremely In few second community to be selected RSRP more than the community of predetermined threshold value as Target cell, it is also possible to select at least one second Community maximum for RSRP in community to be selected is not limited to this as Target cell, the embodiment of the present application.

As an alternative embodiment, described terminal unit determines with described at least one first community to be selected described At least one second community to be selected that current service cell is adjacent, including: described terminal unit described at least one first treat Selecting and the adjacent cell that metrical information includes is defined as in community at least one second community to be selected described, described metrical information is used for Indicate the channel quality between the adjacent cell of described terminal unit and described terminal unit.

Such as, first to be selected with at least one by the identification information of current service cell in system message when terminal unit The identification information of community mates, and finds the identification information of current service cell and the mark of at least one the first community to be selected Information is different from, and does not i.e. belong to what consolidated network equipment covered at least one first community to be selected with current service cell Community, as such, it is possible to the information of adjacent cells in the metrical information generated when carrying out descending measurement according to terminal unit further is true At least one second community to be selected fixed, terminal unit determines at least one first community to be selected by power parameter, then exists The N number of adjacent cell selecting metrical information to include in this at least one first community to be selected, is defined as this N number of adjacent cell at least One the second community to be selected, the probability of the contextual information that adjacent cell remains with terminal unit can be higher to a certain extent, The contextual information of terminal unit can be sent by the most adjacent base station by X2 interface, as such, it is possible to improve terminal unit Carry out rebuilding the success rate of RRC.

As an alternative embodiment, described terminal unit determines with described at least one first community to be selected described At least one second community to be selected that current service cell is adjacent, first to be selected little at least one including: described terminal unit The adjacent cell that system message includes is defined as at least one second community to be selected described by district.

For example, it may be determined that the SIB5 of not only system information at least one first community to be selected but also in LTE system In the adjacent cell list included in community, when it is present, be then equivalent to filter out and meet at least one of S criterion and first treat After selecting community, further according to select at least one first community to be selected be the adjacent cell of current service cell at least One the second community to be selected.It is of course also possible to both according to the information of adjacent cells in system message and the adjacent cell in metrical information Information determines this at least one second community to be selected simultaneously, can improve the accuracy determining at least one the second community to be selected, The success rate of reconstruction can be improved further.

As an alternative embodiment, described terminal unit is the terminal unit in LTE, and described terminal unit is according to system In message current service cell identification information and at least one first cell identity information to be selected described at least one first treat Select and community determines Target cell, including: described terminal unit is according in the system information block SIB1 in described system message Front 20 and at least one first cell ID to be selected of current service cell mark front 20 described at least one first Community to be selected determines Target cell.

When rebuilding RRC in LTE system, can be according to the cell ID in the system information block SIB1 of terminal unit reservation Information determines M Target cell, such as, according to other cell IDs (Cell Identity) front 20 little with current service First 20 of the cell ID in district compare, when current service cell mark front 20 with the mark of the first community before 20 Position is then considered the community that same base station covers time the most identical, the first community also remains with the contextual information of terminal unit, This first community is defined as a community at least one second community to be selected；When before the mark of current service cell 20 Position with when in other communities, the mark of each community is different from, then can be in the adjacent cell that system information block SIB5 includes Determine at least one second community to be selected, or metrical information when can carry out descending measurement according to terminal unit determines to Few second community to be selected.

Should be understood that and the embodiment of the present invention uses the cell identity information in system message determine Target cell, such as may be used To be the cell ID in the SIB1 in LTE system, it is also possible to be the cell ID in WCDMA system, or future network Cell ID in system, the embodiment of the present invention is not limited to this.Do not determine when using the cell identity information in system message The adjacent cell in SIB5 when going out Target cell, it is possible to use the information of adjacent cells in system message determines, such as in LTE system Information, it is also possible to be the information of adjacent cells in WCDMA system.Or the information of adjacent cells in future network system, the present invention Embodiment is not limited to this.

During implementing, in terminal unit random access procedure, terminal unit to target BS send with Machine accesses the identification information needing to provide original community relevant in message；Specifically, terminal unit execution RLF recovery processes permissible Including two stages, in the first stage, terminal unit monitoring quality of wireless channel, when finding to start timing when wireless link interrupts Device T1, if intervalometer T1 time-out link does not the most recover, then enters second stage.In the first stage, terminal does not carry out little District's gravity treatments etc. operate.In second stage, terminal starts intervalometer T2, and performs following operation: performs cell reselection and (may select To original community or new community), carry out resident after gravity treatment；Perform random access procedure to attempt recovering RRC connection.Terminal Equipment provides the identification information relevant to original community to target BS in the random access procedure, in order to target BS is to end End equipment carries out authenticating and obtaining contextual information: if target BS can find match with Terminal Equipment Identifier upper and lower Literary composition information (such as terminal gravity treatment to original community, or the different districts of same BTS management), or target BS energy Gou Congyuan community gets the contextual information of terminal unit, then RRC connects and can recover；If target BS cannot get The contextual information of terminal unit, the most original RRC connects and will be released, and terminal enters RRC Idle state, and gravity treatment is set up new RRC connects.

As an example, Fig. 4 shows the schematic diagram of the method 400 that the reconstruction RRC that the embodiment of the present invention provides connects, Method 400 illustrates as a example by speech business generation Radio Link Failure, the method 400 the most schematically citing, rather than Limitation of the invention, the method 400 includes:

S410, terminal unit resides in community 1, carries out speech business when connected state；

S420, terminal unit determines, in community 1, Radio Link Failure occurs；

S430, terminal unit carries out searching net operation in current network, searches community 2, community 3, community 4 and community 5；

S440, terminal unit selects the community meeting S criterion to be in community 2, community 3, community 4 and community 5: community 3, Community 4 and community 5；

Should be understood that community 3 here, community 4 and community 5 are at least one first community to be selected aforesaid.

S450, terminal unit is according to Qian20Wei Yu community 3, community 4 and the mark of community 5 of the mark of SIB1 small area 1 First 20 mate, find community 1 and the cell ID of community 4 and community 5 front 20 identical, then it is assumed that community 4 He Community 5 belongs to the community that a base station covers；

Should be understood that community 4 here and community 5 are at least one second community to be selected aforesaid.

S460, the RSRP of community 4 and community 5 is compared by terminal unit, and the RSRP of community 5 is more than the RSRP of community 4, Ze Jiang community 5 is defined as Target cell；

S470, terminal unit carries out rebuilding RRC and connects to community 5.

As an example, Fig. 5 shows the schematic diagram of the method 500 that the reconstruction RRC that the embodiment of the present invention provides connects, Method 500 illustrates as a example by speech business generation Radio Link Failure, the method 500 the most schematically citing, rather than Limitation of the invention, the method 500 includes:

S510, terminal unit resides in community 1, carries out speech business when connected state；

S520, terminal unit determines, in community 1, Radio Link Failure occurs；

S530, terminal unit carries out searching net operation in current network, searches community 2, community 3, community 4 and community 5；

S540, terminal unit selects to meet the community of S criterion for example, in community 2, community 3, community 4 and community 5: little District 3, community 4 and community 5；

S550, terminal unit is according to Qian20Wei Yu community 3, community 4 and the mark of community 5 of the mark of SIB1 small area 1 First 20 mate, find that first 20 of community 1 and the cell ID of community 3, community 4 and community 5 are different from, then recognize For community 1 with community 3, community 4 and community 5 with being all not belonging to the community that a base station covers；Terminal unit is according in SIB5 Cell information in information of adjacent cells or measurement report select adjacent cell list in community 4 and community 5, i.e. SIB5 with extremely The community that few first community to be selected includes jointly is defined as at least one second community to be selected.

S560, the RSRP of community 4 and community 5 is compared by terminal unit, and the RSRP of community 5 is more than the RSRP of community 4, Ze Jiang community 5 is defined as Target cell；

S570, terminal unit carries out rebuilding RRC and connects to community 5.

Alternatively, in method 400 and method 500, terminal unit selects to belong in community 2, community 3, community 4 and community 5 The community covered in a base station is: community 3, community 4 and community 5；Then in community 3, community 4 and community 5, S criterion is met Community 4 and community 5.

Fig. 6 shows device 600 schematic diagram of the reconstruction RRC provided according to embodiments of the present invention, and this device 600 includes:

Determine module 610, for carrying out rebuilding in the case of described RRC connects when needs, first to be selected at least one Community determines the Target cell belonging under consolidated network equipment covers with current service cell.

Rebuild module 620, be connected with the described RRC of described Target cell for rebuilding.

As an alternative embodiment, described determine module 610 specifically for: at least one first community to be selected described Middle determine with current service cell belong to consolidated network equipment cover under at least one second community to be selected；According to described at least The Reference Signal Received Power of one the second community to be selected determines described Target cell.

As an alternative embodiment, described determine that module 610 is specifically additionally operable to: believe according to the mark of current service cell The identification information of breath and at least one the first community to be selected described determines with described at least one first community to be selected described Current service cell belongs at least one second community to be selected under consolidated network equipment covers.

As an alternative embodiment, described determine that module 610 is specifically additionally operable to: at least one is first to be selected little described District determines in cell identity information for representing that the affiliated information of the network equipment is believed with the mark of described current service cell For representing at least one second community to be selected that the information of the affiliated network equipment is identical in breath.

As an alternative embodiment, described determine that module 610 is specifically additionally operable to: at least one is second to be selected little by described The second community to be selected that in district, Reference Signal Received Power is maximum is defined as described Target cell.

As an alternative embodiment, described device 600 also wraps: select module, for described at least one first treat Select before community determines the Target cell belonging under consolidated network equipment covers with current service cell, select power parameter big In at least one first community to be selected described in first threshold.

Should be understood that device 600 here embodies with the form of functional module.Here term " module " can refer to application spy Have integrated circuit (Application Specific Integrated Circuit, ASIC), electronic circuit, for execution one Individual or the processor (such as sharing processor, proprietary processor or group processor etc.) of multiple software or firmware program and storage Device, merging logic circuit and/or the suitable assembly of other function described by support.In an optional example, this area skill Art personnel are appreciated that the terminal unit that device 600 can be specially in above-described embodiment, device 600 may be used for performing State each flow process and/or step corresponding with terminal unit in method 200 embodiment, for avoiding repeating, do not repeat them here.

Fig. 7 shows device 700 schematic diagram of the reconstruction RRC provided according to embodiments of the present invention, and this device 700 includes:

Determine module 710, for carrying out rebuilding in the case of described RRC connects when needs, by described at least one first Community adjacent with current service cell in community to be selected is defined as Target cell.

Rebuild module 720, be connected with the described RRC of described Target cell for rebuilding.

As an alternative embodiment, described determine that module 710 is additionally operable to: by least one first community to be selected described In before the community adjacent with current service cell be defined as Target cell, determine at least one first community to be selected described Whether there is the community belonging under consolidated network equipment covers with described current service cell；Described determine that module 710 is specifically used In: when determining the community not belonged under consolidated network equipment covers at least one first community to be selected described, by described In at least one first community to be selected, the community adjacent with described current service cell is defined as described Target cell.

As an alternative embodiment, described determine module 710 specifically for: at least one first community to be selected described Middle determine at least one second to be selected community adjacent with described current service cell；At least one is second to be selected little according to described The Reference Signal Received Power in district determines described Target cell.

As an alternative embodiment, described determine that module 710 is specifically additionally operable to: at least one is first to be selected little described The adjacent cell that metrical information includes is defined as in district at least one second community to be selected described, and described metrical information is used for indicating Channel quality between described device 700 and the adjacent cell of described device 700.

As an alternative embodiment, described determine that module 710 is specifically additionally operable to: at least one first community to be selected Adjacent cell system message included is defined as at least one second community to be selected described.

As an alternative embodiment, described determine that module 710 is specifically additionally operable to: at least one is second to be selected little by described The second community to be selected that in district, Reference Signal Received Power is maximum is defined as described Target cell.

As an alternative embodiment, described device 700 also includes: select module, for by described at least one the Before one community adjacent with current service cell in community to be selected is defined as Target cell, select power parameter more than the first threshold At least one first community to be selected described of value.

Should be understood that device 700 here embodies with the form of functional module.Here term " module " can refer to application spy Have integrated circuit (Application Specific Integrated Circuit, ASIC), electronic circuit, for execution one Individual or the processor (such as sharing processor, proprietary processor or group processor etc.) of multiple software or firmware program and storage Device, merging logic circuit and/or the suitable assembly of other function described by support.In an optional example, this area skill Art personnel are appreciated that the terminal unit that device 7500 can be specially in above-described embodiment, device 700 may be used for performing State each flow process and/or step corresponding with terminal unit in method 300 embodiment, for avoiding repeating, do not repeat them here.

Fig. 8 shows the device 800 of the reconstruction RRC that the embodiment of the present invention provides, and this device 800 includes receptor 810, place Reason device 820, transmitter 830, memorizer 840 and bus system 850.Wherein, receptor 810, processor 820, transmitter 830 and Memorizer 840 is connected by bus system 850, and this memorizer 840 is used for storing instruction, and this processor 820 is used for performing this and deposits The instruction of reservoir 840 storage, receives signal controlling this receptor 810, and controls this transmitter 830 and send instruction.

Wherein, processor 820, for carrying out rebuilding in the case of described RRC connects when needs, first is treated at least one Select and community determines the Target cell belonging under consolidated network equipment covers with current service cell；Rebuild and described Target cell Described RRC connect.

Should be understood that the terminal unit that device 800 can be specially in above-described embodiment, and may be used for performing above-mentioned side Each step and/or flow process corresponding with terminal unit in method 200 embodiment.Alternatively, this memorizer 840 can include read-only Memorizer and random access memory, and provide instruction and data to processor.A part for memorizer can also include non-easily The property lost random access memory.Such as, memorizer can be with the information of storage device type.This processor 820 may be used for holding The instruction of storage in line storage, and when this processor performs this instruction, this processor can perform said method 200 to be implemented Each step corresponding with terminal unit in example.

Fig. 9 shows the device 900 of the reconstruction RRC that the embodiment of the present invention provides, and this device 900 includes receptor 910, place Reason device 920, transmitter 930, memorizer 940 and bus system 950.Wherein, receptor 910, processor 920, transmitter 930 and Memorizer 940 is connected by bus system 950, and this memorizer 940 is used for storing instruction, and this processor 920 is used for performing this and deposits The instruction of reservoir 940 storage, receives signal controlling this receptor 910, and controls this transmitter 930 and send instruction.

Wherein, at least one, for carrying out rebuilding in the case of described RRC connects when needs, first is treated by processor 920 Community adjacent with current service cell in community is selected to be defined as Target cell；Rebuild the described RRC with described Target cell even Connect.

Should be understood that the terminal unit that device 900 can be specially in above-described embodiment, and may be used for performing above-mentioned side Each step and/or flow process corresponding with terminal unit in method 300 embodiment.Alternatively, this memorizer 940 can include read-only Memorizer and random access memory, and provide instruction and data to processor.A part for memorizer can also include non-easily The property lost random access memory.Such as, memorizer can be with the information of storage device type.This processor 920 may be used for holding The instruction of storage in line storage, and when this processor performs this instruction, this processor can perform said method 300 to be implemented Each step corresponding with terminal unit in example.

Should be understood that and may determine that B according to A.It is also to be understood that determine B to be not meant to only according to A according to A determine B, B can also be determined according to A and/or out of Memory.

Those of ordinary skill in the art are it is to be appreciated that combine each method step described in the embodiments described herein Rapid and unit, it is possible to electronic hardware, computer software or the two be implemented in combination in, in order to clearly demonstrate hardware and soft The interchangeability of part, the most generally describes step and the composition of each embodiment according to function.These Function performs with hardware or software mode actually, depends on application-specific and the design constraint of technical scheme.Ability Territory those of ordinary skill can use different methods to realize described function to each specifically should being used for, but this reality Existing it is not considered that beyond the scope of this invention.

Those skilled in the art is it can be understood that arrive, for convenience of description and succinctly, foregoing description be System, device and the specific works process of unit, be referred to the corresponding process in preceding method embodiment, do not repeat them here.

In several embodiments provided herein, it should be understood that disclosed system, apparatus and method, permissible Realize by another way.Such as, device embodiment described above is only schematically, such as, and described unit Dividing, be only a kind of logic function and divide, actual can have other dividing mode, the most multiple unit or assembly when realizing Can in conjunction with or be desirably integrated into another system, or some features can be ignored, or does not performs.It addition, it is shown or beg for The coupling each other of opinion or direct-coupling or communication connection can be the INDIRECT COUPLING by some interfaces, device or unit Or communication connection, it is also possible to be electric, machinery or other form connect.

The described unit illustrated as separating component can be or may not be physically separate, shows as unit The parts shown can be or may not be physical location, i.e. may be located at a place, or can also be distributed to multiple On NE.Some or all of unit therein can be selected according to the actual needs to realize embodiment of the present invention scheme Purpose.

It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible to It is that unit is individually physically present, it is also possible to be that two or more unit are integrated in a unit.Above-mentioned integrated Unit both can realize to use the form of hardware, it would however also be possible to employ the form of SFU software functional unit realizes.

If described integrated unit realizes and as independent production marketing or use using the form of SFU software functional unit Time, can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially The part in other words prior art contributed, or this technical scheme completely or partially can be with the form of software product Embodying, this computer software product is stored in a storage medium, including some instructions with so that a computer Equipment (can be personal computer, server, or the network equipment etc.) performs the complete of method described in each embodiment of the present invention Portion or part steps.And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (Read-Only Memory, letter Referred to as " ROM "), random access memory (Random Access Memory, referred to as " RAM "), magnetic disc or CD etc. are each Plant the medium that can store program code.

The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any Those familiar with the art, in the technical scope that the invention discloses, can readily occur in the amendment of various equivalence or replace Changing, these amendments or replacement all should be contained within protection scope of the present invention.Therefore, protection scope of the present invention should be with right The protection domain required is as the criterion.

Claims

1. rebuild the method that radio resource control RRC connects for one kind, it is characterised in that described method includes:

When needs carry out rebuilding in the case of described RRC connects, terminal unit determine at least one first community to be selected with Current service cell belongs to the Target cell under consolidated network equipment covers；

Described terminal unit is rebuild and is connected with the described RRC of described Target cell.

Method the most according to claim 1, it is characterised in that described terminal unit is at least one first community to be selected Determine the Target cell belonging under consolidated network equipment covers with current service cell, including:

Described terminal unit determines that belonging to consolidated network with current service cell sets at least one first community to be selected described At least one second community to be selected under standby covering；

According to the Reference Signal Received Power of at least one the second community to be selected described, described terminal unit determines that described target is little District.

Method the most according to claim 2, it is characterised in that at least one is first to be selected little described for described terminal unit District determines at least one second community to be selected belonging under consolidated network equipment covers with current service cell, including:

Described terminal unit is believed according to the identification information of current service cell and the mark of at least one the first community to be selected described Breath determine at least one first community to be selected described with described current service cell belong to consolidated network equipment cover under At least one second community to be selected.

Method the most according to claim 3, it is characterised in that described terminal unit is believed according to the mark of current service cell The identification information of breath and at least one the first community to be selected described determines with described at least one first community to be selected described Current service cell belongs at least one second community to be selected under consolidated network equipment covers, including:

At least one first community to be selected described determines in cell identity information for representing the letter of the affiliated network equipment Breath with the identification information of described current service cell is used for represent described at least that the information of the affiliated network equipment is identical Individual second community to be selected.

5. according to the method according to any one of claim 2 to 4, it is characterised in that described terminal unit according to described at least The Reference Signal Received Power of one the second community to be selected determines described Target cell, including:

Described terminal unit is to be selected little by least one second community to be selected described the second of Reference Signal Received Power maximum District is defined as described Target cell.

Method the most according to any one of claim 1 to 5, it is characterised in that at described terminal unit at least one Before first community to be selected determines the Target cell belonging under consolidated network equipment covers with current service cell, described method Also include:

Terminal unit selects power parameter at least one first community to be selected described more than first threshold.

7. rebuild the method that radio resource control RRC connects for one kind, it is characterised in that described method includes:

When needs carry out rebuilding in the case of described RRC connects, terminal unit by least one first community to be selected with current The community that Serving cell is adjacent is defined as Target cell；

Method the most according to claim 7, it is characterised in that at least one is first to be selected by described at described terminal unit Before community adjacent with current service cell in community is defined as Target cell, described method also includes:

Described terminal unit determines whether there is at least one first community to be selected described and belongs to described current service cell Community under consolidated network equipment covers；

Wherein, the community adjacent with current service cell at least one first community to be selected described is determined by described terminal unit For Target cell, including:

Under described terminal unit determines that at least one first community to be selected described not belonging to consolidated network equipment covers Community time, described terminal unit is by community adjacent with described current service cell at least one first community to be selected described It is defined as described Target cell.

9. according to the method described in claim 7 or 8, it is characterised in that described terminal unit by described at least one first treat Community adjacent with current service cell in community is selected to be defined as Target cell, including:

Described terminal unit determine at least one first community to be selected described adjacent with described current service cell at least One the second community to be selected；

Method the most according to claim 9, it is characterised in that at least one is first to be selected described for described terminal unit Community determines at least one second to be selected community adjacent with described current service cell, including:

The adjacent cell that metrical information is included at least one first community to be selected described by described terminal unit is defined as described At least one second community to be selected, described metrical information for indicate described terminal unit and described terminal unit adjacent cell it Between channel quality.

11. methods according to claim 9, it is characterised in that at least one is first to be selected described for described terminal unit Community determines at least one second to be selected community adjacent with described current service cell, including:

The adjacent cell that system message is included at least one first community to be selected by described terminal unit be defined as described at least One the second community to be selected.

12. according to the method according to any one of claim 9 to 11, it is characterised in that described terminal unit according to described extremely The Reference Signal Received Power of few second community to be selected determines described Target cell, including:

13. according to the method described in any one in claim 7 to 12, it is characterised in that will at least at described terminal unit Before in one the first community to be selected, the community adjacent with current service cell is defined as Target cell, described method also includes:

Described terminal unit selects power parameter at least one first community to be selected described more than first threshold.

Rebuild the device that radio resource control RRC connects for 14. 1 kinds, it is characterised in that described device includes:

Determine module, in the case of carrying out rebuilding described RRC connection when needs, at least one first community to be selected really Fixed and current service cell belongs to the Target cell under consolidated network equipment covers；

Rebuild module, be connected with the described RRC of described Target cell for rebuilding.

15. devices according to claim 14, it is characterised in that described determine module specifically for:

At least one first community to be selected described determines with current service cell belong to consolidated network equipment cover under extremely Few second community to be selected；

Reference Signal Received Power according at least one the second community to be selected described determines described Target cell.

16. devices according to claim 15, it is characterised in that described determine that module is specifically additionally operable to:

Identification information according to current service cell and the identification information of at least one the first community to be selected described described at least One the first community to be selected determines with described current service cell belong to consolidated network equipment cover under at least one second Community to be selected.

17. devices according to claim 16, it is characterised in that described determine that module is specifically additionally operable to:

18. according to the device according to any one of claim 15 to 17, it is characterised in that described determine that module is the most also used In:

The second community to be selected that Reference Signal Received Power at least one second community to be selected described is maximum is defined as described Target cell.

19. according to the device according to any one of claim 14 to 18, it is characterised in that described device also wraps:

Select module, for determining that belonging to consolidated network with current service cell sets at least one first community to be selected described Before Target cell under standby covering, select power parameter at least one first community to be selected described more than first threshold.

Rebuild the device that radio resource control RRC connects for 20. 1 kinds, it is characterised in that described device includes:

Determine module, for carrying out rebuilding in the case of described RRC connects when needs, by least one first community to be selected with Adjacent community, current service cell is defined as Target cell；

21. devices according to claim 20, it is characterised in that described determine that module is additionally operable to:

By before at least one first community to be selected described, the community adjacent with current service cell is defined as Target cell, At least one first community to be selected described determines whether there is and belongs to consolidated network equipment with described current service cell and cover Community under Gai；

Described determine module specifically for: determine at least one first community to be selected described and do not belong to consolidated network equipment During community under Fu Gaiing, the community adjacent with described current service cell at least one first community to be selected described is defined as Described Target cell.

22. according to the device described in claim 20 or 21, it is characterised in that described determine module specifically for:

In at least one first community to be selected described, determine that at least one adjacent with described current service cell second is to be selected Community；

23. devices according to claim 22, it is characterised in that described determine that module is specifically additionally operable to:

The adjacent cell at least one first community to be selected described, metrical information included be defined as described at least one second Community to be selected, described metrical information channel quality between the adjacent cell indicating described device and described device.

24. devices according to claim 22, it is characterised in that described determine that module is specifically additionally operable to:

Adjacent cell system message included at least one first community to be selected is defined as that described at least one is second to be selected Community.

25. according to the device according to any one of claim 22 to 24, it is characterised in that described determine that module is the most also used In:

26. according to the device described in any one in claim 20 to 25, it is characterised in that described device also includes:

Select module, for being defined as the community adjacent with current service cell at least one first community to be selected described Before Target cell, select power parameter at least one first community to be selected described more than first threshold.