CN105101345B

CN105101345B - A kind of selection of cell and its control method and device

Info

Publication number: CN105101345B
Application number: CN201410196040.8A
Authority: CN
Inventors: 杨义; 梁靖
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2014-05-09
Filing date: 2014-05-09
Publication date: 2018-12-11
Anticipated expiration: 2034-05-09
Also published as: CN105101345A

Abstract

The invention discloses a kind of selections of cell and its control method and device to avoid the cell-overload of single RAT with so that Idle state UE can be balancedly resident in the cell of different RAT.A kind of cell provided by the invention selects control method, it include: the corresponding relationship that base station determines multiple frequency points with the service priority for type of service setting, wherein, the corresponding service priority for the setting of same type of service of frequency point under at least two different radio access technologies RAT is different；The base station notifies the corresponding relationship of multiple frequency points and the service priority for type of service setting to user equipment (UE).

Description

A kind of selection of cell and its control method and device

Technical field

The present invention relates to field of communication technology more particularly to a kind of selection of cell and its control method and device.

Background technique

In the prior art, universal land radio access web (the Evolved Universal Terrestrial of evolution Radio Access Network, E-UTRAN) and other systems between cell selection be based on absolute priority mechanism carry out 's.User equipment (User Equipment, UE) needs excellent according to its when carrying out reselection evaluation to some different frequency/different technology The relationship (be higher than, be equal to, being lower than) of first grade and current service frequency point priority, which is distinguished, to be treated, and is not allowed between different systems There is identical priority.Also, Current protocol regulation UE can only provide E-UTRAN frequency point or different technology by system information Frequency point and there is the assessment that cell selection is carried out in the case where priority for this frequency point.

In certain geographic range, may deploy multiple wireless access technologys (Radio Access Technology, RAT cell) is covered.One has and accesses the UE of multiple RAT abilities and may be detected simultaneously by multiple cells, it is by foundation Previously described rule carries out cell selection and gravity treatment and may result in this that is, based on the cell selection scheme of frequency point priority A large amount of multimode UE in geographic range are dwelt on some RAT, cause the Idle state UE quantity being resident between different RAT uneven Weighing apparatus.If a large amount of Idle state UE below some RAT largely initiate business in a short time, it may result in the RAT and loaded Weight.

In conclusion at present using the cell selection scheme of the absolute priority based on frequency point between difference RAT, and Frequency point priority between different RAT cannot be identical, can not intersect.This configuration mode may result in a large amount of UE and dwell on On some RAT, the Idle state UE load imbalance between different RAT is caused, if initiate business will lead to certain to a large amount of UE simultaneously A RAT overload.

Summary of the invention

The embodiment of the invention provides a kind of selection of cell and its control method and device, use is so that Idle state UE can be with It is balancedly resident in the cell of different RAT, avoids the cell-overload of single RAT.

A kind of cell provided in an embodiment of the present invention selects control method, comprising:

Base station determines the corresponding relationship of multiple frequency points with the service priority for type of service setting, wherein at least two The corresponding service priority for the setting of same type of service of frequency point under a different radio access technologies RAT is different；

The base station notifies the corresponding relationship of multiple frequency points and the service priority for type of service setting to user Equipment UE.

In this way, base station notifies the corresponding relationship of multiple frequency points and the service priority being arranged for type of service To UE, so that Idle state UE can be according to the corresponding pass of multiple frequency points and the service priority for type of service setting System, is balancedly resident in the cell of different RAT, avoids the cell-overload of single RAT.Also, it can also be by different business class The UE of type hobby is diverted in the RAT cell for being more suitable for carrying out UE hobby business, to improve the business realizing effect of UE, more preferably Ground meets the business demand of UE.

Preferably, the corresponding business for the setting of same type of service of all frequency points under same wireless access technology RAT Priority is identical；Alternatively, the corresponding service priority for the setting of same type of service of at least two frequency points under same RAT It is different.

Preferably, the base station by each frequency point it is corresponding for each type of service be arranged service priority notify to User equipment (UE), comprising:

The base station corresponds to each frequency point by system information broadcast mode, or by dedicated signaling mode For each type of service setting service priority notify to UE.

Preferably, when the base station is corresponding for each type of service by each frequency point by dedicated signaling mode When the service priority of setting is notified to UE, the base station passes through radio resource control RRC connection release message or RRC connection Reconfiguration message notifies the corresponding service priority for the setting of each type of service of each frequency point to UE.

Preferably, when the base station is corresponding for each type of service by each frequency point by dedicated signaling mode When the service priority of setting is notified to UE, the base station determines multiple frequency points and the service priority for type of service setting Corresponding relationship before, this method further include:

The base station directly obtains the UE from the UE or from core-network side or from the base station that the UE was connected originally Type of service preference information, the type of service preference information of the UE is used to indicate that the UE to be directed to the initiation of different kinds of business Frequency；

The corresponding relationship of the multiple frequency points in base station and the service priority for type of service setting, comprising:

The base station determines according to the type of service preference information of the UE and needs to be sent to multiple frequency points of the UE and be directed to The corresponding relationship of the service priority of type of service setting.

Preferably, the base station directly obtains the type of service preference information of the UE from the UE, comprising:

The base station obtains the UE and is establishing the service class reported when radio resource control RRC connection by RRC information Type preference information.

Preferably, the base station obtains the type of service preference information of the UE from core-network side, comprising:

When the UE and network side establish connection, the base station is obtained by the control plane message that core-network side is sent should The type of service preference information of UE；Alternatively,

When cell switching occurs for the UE, the base station obtains core-network side in handoff procedure or after switching completion The type of service preference information of the UE sent.

Preferably, the base station obtains the type of service preference information of the UE from the base station that the UE was connected originally, comprising:

When cell switching occurs, the base station that the base station was connected originally by the UE is sent in switching preparation process Message obtain the type of service preference information of the UE.

Preferably, this method further include:

The base station adjust any frequency point it is corresponding for any type of service setting service priority, and by frequency point with It notifies for the corresponding relationship of the service priority adjusted of type of service setting to UE.

A kind of cell selecting method provided in an embodiment of the present invention, comprising:

User equipment (UE) determines the corresponding relationship of multiple frequency points with the service priority for type of service setting, wherein The corresponding service priority for the setting of same type of service of frequency point under at least two different radio access technologies RAT is not Together；

The UE carries out cell choosing according to the corresponding relationship of multiple frequency points and the service priority for type of service setting It selects.

In this way, UE can be according to the corresponding pass of multiple frequency points and the service priority for type of service setting System, is balancedly resident in the cell of different RAT, avoids the cell-overload of single RAT.Also, it can also be by different business class The UE of type hobby is diverted in the RAT cell for being more suitable for carrying out UE hobby business, to improve the business realizing effect of UE, more preferably Ground meets the business demand of UE.

Preferably, the UE is carried out according to the corresponding relationship of multiple frequency points and the service priority being arranged for type of service Cell selection, comprising:

The UE determines the type of service preference information of the UE, and the type of service preference information of the UE is for indicating the UE For the initiation frequency of different kinds of business；

The UE is according to the corresponding relationship and the UE of multiple frequency points and the service priority for type of service setting Type of service preference information determines that the corresponding business for initiating the maximum type of service setting of frequency for the UE of each frequency point is excellent First grade；

The UE is preferential according to the corresponding business for initiating the maximum type of service setting of frequency for the UE of each frequency point Grade carries out cell selection.

Preferably, the UE initiates the industry that the maximum type of service of frequency is arranged for the UE according to each frequency point is corresponding Priority of being engaged in carries out cell selection, comprising:

The UE is preferential according to the corresponding business for initiating the maximum type of service setting of frequency for the UE of each frequency point The absolute priority of frequency point where grade and candidate cell, carries out cell selection.

Preferably, the UE initiates the industry that the maximum type of service of frequency is arranged for the UE according to each frequency point is corresponding The absolute priority of frequency point where priority of being engaged in and candidate cell, carries out cell selection, comprising:

For each candidate cell, the absolute priority of frequency point where the candidate cell is added the candidate cell by the UE The service priority that the maximum type of service setting of frequency is initiated for the UE of place frequency point, using obtain and value as the time Select the assessed value of cell；

The UE selects the maximum candidate cell of assessed value, as resident cell.

Preferably, this method further include:

The type of service preference information of the UE is sent to network side by the UE.

Preferably, the type of service preference information of the UE is sent to network side by the UE, comprising:

The UE reports the type of service of itself to like letter when establishing radio resource control RRC connection by RRC information It ceases to base station；Alternatively,

The type of service preference information of itself is sent to core-network side by non access stratum NAS message by the UE.

A kind of cell device for selection controlling provided in an embodiment of the present invention, comprising:

Service priority determination unit, for determining pair of multiple frequency points with the service priority for type of service setting It should be related to, wherein the corresponding industry for the setting of same type of service of frequency point under at least two different radio access technologies RAT Priority of being engaged in is different；

Notification unit, for by multiple frequency points and for type of service setting service priority corresponding relationship notify to User equipment (UE).

By the device, by multiple frequency points and for the corresponding relationship of the service priority of type of service setting notify to UE so that Idle state UE can according to multiple frequency points with for type of service setting service priority corresponding relationship, It is balancedly resident in the cell of different RAT, avoids the cell-overload of single RAT.Also, different service types can also be liked Good UE is diverted in the RAT cell for being more suitable for carrying out UE hobby business, so that the business realizing effect of UE is improved, it is preferably full The business demand of sufficient UE.

Preferably, the notification unit is specifically used for:

It is by system information broadcast mode, or by dedicated signaling mode, each frequency point is corresponding for every The service priority of one type of service setting is notified to UE.

Preferably, when the notification unit is corresponding for each business by each frequency point by dedicated signaling mode The service priority of type setting is when notifying to UE, the notification unit by radio resource control RRC connection release message or Person's RRC connection reconfiguration set message by each frequency point it is corresponding for each type of service setting service priority notify to UE。

Preferably, when the notification unit is corresponding for each business by each frequency point by dedicated signaling mode When the service priority of type setting is notified to UE, described device further include:

Acquiring unit, for determining multiple frequency points in the service priority determination unit and being directed to type of service setting Before the corresponding relationship of service priority, directly from the UE or from core-network side or from the base station that the UE was connected originally The type of service preference information of the UE is obtained, the type of service preference information of the UE is for indicating the UE for different type industry The initiation frequency of business；

The service priority determination unit is specifically used for:

The base station determines that each frequency point for needing to be sent to the UE is corresponding according to the type of service preference information of the UE For the service priority of each type of service setting.

Preferably, being specifically used for when the acquiring unit directly obtains the type of service preference information of the UE from the UE:

Obtain the type of service hobby letter that the UE is reported when establishing radio resource control RRC connection by RRC information Breath.

Preferably, being specifically used for when the acquiring unit obtains the type of service preference information of the UE from core-network side:

When the UE and network side establish connection, the business of the UE is obtained by the control plane message that core-network side is sent Type preference information；Alternatively,

When cell switching occurs for the UE, what acquisition core-network side was sent in handoff procedure or after switching completion should The type of service preference information of UE.

Preferably, the acquiring unit obtains the type of service preference information of the UE from the base station that the UE was connected originally When, it is specifically used for:

When cell switching occurs, the message that the base station connected originally by the UE is sent in switching preparation process is obtained Take the type of service preference information of the UE.

Preferably, the service priority determination unit is also used to: it is corresponding for any service class to adjust any frequency point The service priority of type setting；

The notification unit is also used to: frequency point is corresponding with the service priority adjusted for type of service setting Relationship is notified to UE.

A kind of cell selecting apparatus provided in an embodiment of the present invention, comprising:

Selecting unit, for being carried out according to the corresponding relationship of multiple frequency points and the service priority for type of service setting Cell selection.

By the device, allow Idle state UE according to multiple frequency points and the service priority for type of service setting Corresponding relationship, be balancedly resident in the cell of different RAT, avoid the cell-overload of single RAT.Also, can also will not UE with type of service hobby is diverted in the RAT cell for being more suitable for carrying out UE hobby business, to improve the business realizing of UE Effect preferably meets the business demand of UE.

Preferably, the selecting unit is specifically used for:

Determine the type of service preference information of UE, the type of service preference information of the UE is for indicating the UE for difference The initiation frequency of type service；

According to multiple frequency points and the corresponding relationship of the service priority for type of service setting and the service class of the UE Type preference information determines the corresponding service priority that the maximum type of service setting of frequency is initiated for the UE of each frequency point；

It is carried out according to the corresponding service priority for initiating the maximum type of service setting of frequency for the UE of each frequency point Cell selection.

Preferably, the selecting unit is set according to each frequency point is corresponding for the UE initiation maximum type of service of frequency When the service priority set carries out cell selection, it is specifically used for:

According to the corresponding service priority for initiating the maximum type of service setting of frequency for the UE of each frequency point, and The absolute priority of frequency point where candidate cell, carries out cell selection.

Preferably, the selecting unit is set according to each frequency point is corresponding for the UE initiation maximum type of service of frequency The absolute priority of frequency point is specifically used for when carrying out cell selection where the service priority and candidate cell set:

For each candidate cell, by the absolute priority of frequency point where the candidate cell plus frequency where the candidate cell The service priority that the maximum type of service setting of frequency is initiated for the UE of point, using obtain and value as the candidate cell Assessed value；

The maximum candidate cell of assessed value is selected, as resident cell.

Preferably, the device further include:

Transmission unit, for the type of service preference information of UE to be sent to network side.

Preferably, the transmission unit is specifically used for:

UE establish radio resource control RRC connection when, by RRC information report the type of service preference information of itself to Base station；Alternatively,

The type of service preference information of itself is sent to core-network side by non access stratum NAS message.

Detailed description of the invention

Fig. 1 is the flow diagram that a kind of cell provided in an embodiment of the present invention selects control method；

Fig. 2 is a kind of flow diagram of cell selecting method provided in an embodiment of the present invention；

Fig. 3 is a kind of structural schematic diagram of cell device for selection controlling provided in an embodiment of the present invention；

Fig. 4 is a kind of structural schematic diagram of cell selecting apparatus provided in an embodiment of the present invention.

Specific embodiment

The selection of cell described in the embodiment of the present invention can be first cell selection, be also possible to cell reselection.

Referring to Fig. 1, in network side, a kind of cell selection control method provided in an embodiment of the present invention, comprising:

S101, base station determine the corresponding relationship of multiple frequency points with the service priority for type of service setting, wherein extremely The corresponding service priority for the setting of same type of service of frequency point under few two different radio access technologies RAT is different；

The corresponding service priority for the setting of same type of service of frequency point in the embodiment of the present invention, under all RAT It is all not identical, for example, there are three frequency point, respectively the first frequency point, the second frequency point and third frequency points, wherein the first frequency point category altogether In LTE, the second frequency point belongs to UMTS, and third frequency point belongs to GERAN, but these three frequency points are corresponding for same service class Type setting service priority cannot all it is identical, can there are two frequency point it is corresponding for same type of service setting Service priority is identical.

S102, the base station by multiple frequency points and for type of service setting service priority corresponding relationship notify to User equipment (UE).

It is UE when carrying out cell selection for the service priority of type of service setting described in the embodiment of the present invention Referenced parameter.

Base station notifies the corresponding relationship of frequency point and the service priority for type of service setting to be used to indicate UE to UE When needing to carry out cell selection, reference frequency point and the corresponding relationship of the service priority for type of service setting carry out cell Selection.

In the embodiment of the present invention, RAT rank can be for the service priority of type of service setting, i.e., UE is for same All frequency points in one RAT all use same service priority for same type of service.For the industry of type of service setting Business priority is also possible to frequency point rank, i.e., business can be arranged individually for type of service in each frequency point in each RAT Priority, UE is for same frequency point, for same type of service, all uses same service priority.

Preferably, the corresponding business for the setting of same type of service of all frequency points under same wireless access technology RAT Priority is identical；Alternatively, the corresponding service priority for the setting of same type of service of at least two frequency points under same RAT The corresponding service priority for the setting of same type of service of each frequency point under difference, such as a certain RAT is different from, or Under a certain RAT of person there are two frequency point it is corresponding for same type of service setting service priority it is identical, but with other frequency points The corresponding service priority for the setting of same type of service is different.

Wherein, the RRC information can be RRC connection and establish completion (RRC Connection Setup Complete) Message or other RRC informations.

After the type of service preference information of UE changes, UE is liked updated type of service by RRC information Good information is notified to base station.

When the UE and network side establish connection, the base station obtains the UE's by the control plane that core-network side is sent Type of service preference information, wherein the control plane message, such as can be S1AP message, S1AP is MME in LTE system Control plane interface between eNB；Alternatively,

When cell switching occurs for the UE, the base station obtains core-network side in handoff procedure or after switching completion The type of service preference information of the UE sent, wherein the core-network side can be mobile management entity MME.

Specifically, core-network side equipment (being SGSN in usually MME, 3G) sends the type of service preference information of UE To the serving BS of UE.Specific there are two types of implementations: first is that core net passes through S1AP message when UE and network establish connection The type of service preference information of UE is sent to the serving BS of UE.For example request (Initial is established by initial context Context Setup Request) message；Second is that cell switching has occurred in UE, MME is in handoff procedure or after switching completion The type of service preference information of UE is sent to the serving BS of UE.For example disappeared by switching request (Handover Request) Breath or path integration request confirmation (Path Switch Request Acknowledge) message are sent to the service base of UE It stands.The message that the above citing uses when being LTE system.In 3G system, core network control node is SGSN, and SGSN is connect by Iu Mouthful or Gb Interface the type of service preference information of UE issued into radio network controller (Radio Network Controller, RNC).

Type of service preference information the reporting from UE for the UE that core net saves, UE can pass through Non-Access Stratum (Non- Access Stratum, NAS) the type of service preference information of oneself is sent to core net by message.NAS message can be attachment Request (Attach request) message or tracing section updating (Tracking Area Update) message etc..When the business of UE After type preference information changes, UE is notified updated type of service preference information to core net by NAS message. Core net passes through S1AP message again and notifies updated type of service preference information to base station, for example passes through UE contextual modifications Request (UE Context Modification Request) message informing to base station.

When cell switching occurs, the base station that the base station was connected originally by the UE is sent in switching preparation process Message obtain the type of service preference information of the UE, such as:

When X2 switching occurs, the base station is obtained by the switching request message that the base station that the UE was connected originally is sent The type of service preference information of the UE；

When S1 switching occurs, in switching request message of the base station by the UE base station transmission connected originally The transparent vessel that source measures target survey obtains the type of service preference information of the UE.

Preferably, this method further include:

For example, base station it is corresponding can to adjust any frequency point according to the load condition of itself and neighboring access technique district For the service priority of any type of service setting, and frequency point and the business adjusted for type of service setting is preferential The corresponding relationship of grade is notified to UE.

Correspondingly, in terminal side, referring to fig. 2, a kind of cell selecting method provided in an embodiment of the present invention, comprising:

S201, user equipment (UE) determine the corresponding relationship of multiple frequency points with the service priority for type of service setting, Wherein, the corresponding business for the setting of same type of service of frequency point under at least two different radio access technologies RAT is preferential Grade is different；

S202, the UE carry out small according to the corresponding relationship of multiple frequency points and the service priority for type of service setting Area's selection.

The corresponding relationship of frequency point described in the embodiment of the present invention and the service priority for type of service setting, can be with It is that network side notifies to be also possible to be pre-configured in the side UE, UE can be according to the notice of network side to frequency point and needle to UE The corresponding relationship of the service priority of type of service setting is updated or itself is as needed to frequency point and the business of being directed to The corresponding relationship of the service priority of type setting is updated.

In the embodiment of the present invention, UE can be according only to the corresponding pass of frequency point and the service priority for type of service setting System carries out cell selection, can also be according to the corresponding relationship of frequency point and the service priority for type of service setting, and combines Other parameters carry out cell selection, wherein the other parameters, such as: the absolute priority of RAT, cell signal quality etc..

For each candidate cell, the absolute priority of frequency point where the candidate cell is added the candidate cell by the UE The service priority for initiating the maximum type of service setting of frequency for the UE of place frequency point (is also possible to other operation sides Formula is not limited to be added, such as is also possible to be multiplied), using obtain and value as the assessed value of the candidate cell；

The UE selects the maximum candidate cell of assessed value, as resident cell.

Preferably, this method further include:

It is small higher than preset signal quality thresholding to can be signal quality for candidate cell described in the embodiment of the present invention Area, wherein the signal quality thresholding can be configured according to actual needs, such as can be set to -50dB.

The explanation of several specific embodiments is given below.

Embodiment 1:

The corresponding relationship of frequency point with the service priority for type of service setting is broadcasted in system information in base station.

Wherein, the corresponding relationship of frequency point and the service priority for type of service setting, can be listed form It provides, such as shown in following table 1:

Table 1: system information contents example

The corresponding absolute priority of each frequency point can not also be carried in the table 1.

After the service priority that different service types are arranged in each frequency point that UE reads base station broadcast, take into consideration The absolute priority of frequency point, the type of service preference information of oneself, frequency point and the service priority for type of service setting Corresponding relationship is assessed and is sorted to the candidate cell searched, and it is resident to select most suitable cell.

The type of service preference information of UE indicates the hobby that the UE initiates business, i.e. initiation a certain kind industry of more maximum probability Business.For example, often initiating voice service, or data service is often initiated, or often initiates circuit switched fallback (Circuit Switched Fallback, CSFB), or often initiate IP multimedia subsystem (IP Multimedia Subsystem, IMS) packet switch (Packet Switched, PS) voice service, etc..

For example, in certain a piece of geographic area, operator deployment F1, F2, F3 totally 3 frequency points, the first priority of F1 frequency point Grade is set as highest, and F2 is secondly, F3 priority is minimum.According to the prior art, the UE in this region will be according to the absolute of frequency point Priority, preferential selection reside in the frequency point cell F1, may be significantly more than other frequency points so as to cause the UE quantity on F1 frequency point, Cause load imbalance.

It is, however, possible to which F1 frequency point supports preferably data service, for example F1 frequency point is LTE frequency point.F2 frequency point may Preferably to voice service support, for example F2 frequency point is UMTS frequency point.F3 frequency point may support preferably voice service, but to data Business support is very poor, for example F3 frequency point is GERAN frequency point.So the number of F1 broadcast can be arranged in operator on this 3 frequency points It is higher than other frequency points according to the service priority of business, the service priority for the voice service that setting F2 is broadcasted is higher than other frequency points, As shown in table 1 above.

In this way, for the UE for liking voice service (i.e. initiation voice service frequency highest) in the region, although detecting The absolute priority of F2 frequency point is not highest, but after comprehensively considering the service priority that voice service is arranged on the frequency point, The possible final assessment result of the frequency point is highest priority, so that the frequency point cell UE final choice F2 is resident.

Such as: UE selects the cell that can be resident from all candidate cells, specifically includes:

The UE of hobby voice service is to the assessment result of the candidate cell of each frequency point (assuming that three frequency points respectively correspond one A candidate cell) as follows:

F1:7+2=9

F2:5+5=10

F3:3+3=6

As it can be seen that the assessed value of the corresponding candidate cell of F2 frequency point is 10, it is the largest, therefore, the UE is from candidate cell It selects the corresponding candidate cell of F2 frequency point resident, if the corresponding candidate cell of F2 frequency point has multiple, can therefrom select to believe Number top-quality cell is resident.

Assessment of the UE of hobby data service (i.e. the frequency of initiation data service is maximum) to the candidate cell of each frequency point As a result (assuming that three frequency points respectively correspond a candidate cell) is as follows:

F1:7+5=12

F2:5+3=8

F3:3+1=4

As it can be seen that the assessed value of the corresponding candidate cell of F1 frequency point is 12, it is the largest, therefore, the UE is from candidate cell It selects the corresponding candidate cell of F1 frequency point resident, if the corresponding candidate cell of F1 frequency point has multiple, can therefrom select to believe Number top-quality cell is resident.

Its RAT for liking business and corresponding is most suitable in this way it is possible to which the UE that different business is liked is distributed to On frequency point.

The present embodiment has given UE greater flexibility, and final decision is done by UE.It base station can be according to loading condition dynamic Update broadcast frequency point with for type of service setting service priority corresponding relationship.For example, after a period of time, Voice service on F2 frequency point is more, cause to load it is bigger than normal, then base station can be by the business of the corresponding voice service of F3 frequency point Priority is suitably turned up, so that the UE for shunting a part hobby voice service is resident in the frequency point cell F3.

In the embodiment of the present invention, the absolute priority of each frequency point can be sent in the following way UE under each RAT:

Common signaling (i.e. system information broadcast) mode: the absolute priority of current service frequency point is provided in common signaling Information, each frequency point (section) of the respective absolute priority information and other RAT of other frequency points of E-UTRAN it is respective Absolute priority information.Specifically, absolute priority of the E-UTRAN in the cell reselection for eating dishes without rice or wine to broadcast each frequency point.These Frequency point includes the frequency point of the RAT such as E-UTRA, UTRA, GERAN.For example eNB broadcasts E-UTRA frequency point in SIB3/SIB4/SIB5 Absolute priority information, the absolute priority information of UTRA frequency point is broadcasted in SIB6, GERAN frequency point is broadcasted in SIB7 Absolute priority information broadcasts the absolute priority information of CDMA2000 frequency point in SIB8.The absolute priority of frequency point uses Number 0~7 indicates that 7 indicate highest priority, and 0 indicates that priority is minimum.The absolute priority of frequency point inside same RAT can It is identical or different to be configured to.Absolute priority between the frequency point of different RAT cannot be identical, such as some frequency point of E-UTRA Being configured as priority is 6, and it is 6 that the absolute priority of the frequency point of other RAT, which cannot be reconfigured,.In addition, between difference RAT Frequency point absolute priority is unable to mutual height, so as not to ping-pong reselection occurs.

Dedicated signaling mode: it is optionally carried in RRC Connection Release (RRC Connection Release) message The absolute priority list of his system frequency point and corresponding validity period timer length.Corresponding information element content be The information provided in system information is compared, and the absolute priority of service frequency point has been lacked, and it is fixed to be added to absolute priority effective time When device T320.It specifically, can be in RRC Connection Release message when E-UTRAN discharges UE connection In issue the cell reselection information that UE is used in Idle state, among these may include the absolute priority information of each RAT frequency point. After UE receives the absolute priority information of the frequency point issued by RRC Connection Release message, it is by ignoring Frequency point absolute priority information in system broadcast.When meeting certain condition, UE disappears RRC Connection Release is deleted Cease the frequency point absolute priority information that issues, such as when UE enters connected state or these frequency point absolute priority information (T320 time-out) is already expired in validity period.

Embodiment 2:

The serving BS of UE knows the type of service preference information of UE.UE is liked the type of service of oneself by RRC information Good information is notified to base station.Alternatively, the type of service preference information of oneself is notified MME by NAS message by UE, then MME is logical It crosses S1 interface and issues base station.Alternatively, UE current serving BS is original from UE when UE is connected to the base station in a manner of switching The base station of connection obtains the type of service preference information of UE.

The type of service preference information of UE indicates the hobby that the UE initiates business, i.e. which kind of industry of the initiation of more maximum probability Business.For example, often initiating voice service, or data service is often initiated, or often initiate CSFB business, or often hair Play IMS PS voice service, etc..

Specifically, UE can be by the type of service preference information of NAS message informing network side oneself, for example, being more to like (UE can indicate oneself as data centric), and still more liking voice service, (UE can indicate oneself for voice for good data service centric).Certainly, hobby data service is also not precluded within the possibility of certain moment progress voice service.Vice versa.

The UE of LTE technology is supported for one, if it supports CSFB and/or IMS speech capability, it can also refer to network Show that oneself carries out the hobby of voice service in E-UTRAN network, for example, be only to carry out CSFB, or only carry out IMS voice, Still both can be with, but corresponding priority is different.As shown in Table 2 below, 4 kinds of hobby settings are defined:

Table 2:

The serving BS of UE refers to the type of service preference information of UE, when discharging UE connection, in RRC Connection Release (RRC Connection Release) UE is issued in message is arranged in the frequency point that Idle state carries out cell reselection with for type of service Service priority corresponding relationship.The corresponding relationship can use but be not limited to following strategy:

It is if UE often initiates voice service, the business of the corresponding voice service of UMTS GERAN frequency point is preferential Grade is configured to highest priority；

If UE often initiates data service, configure the service priority of the corresponding data service of LTE frequency point to most High priority, it should be understood that LTE is only as an example, other can also be suitble to the RAT frequency of data service by operator here The service priority of the corresponding data service of point is configured to highest priority；

If UE is more prone to initiate CSFB business when being connected to E-UTRAN, UMTS GERAN frequency point is corresponding The service priority of CSFB business is configured to highest priority；

If UE is more prone to initiate IMS PS voice service when being connected to E-UTRAN, by the corresponding IMS PS of LTE frequency point The service priority of voice service is configured to highest priority.

It is, however, possible to which F1 frequency point supports preferably data service, for example F1 frequency point is LTE frequency point.F2 frequency point may Preferably to voice service support, for example F2 frequency point is UMTS frequency point.F3 frequency point may support preferably voice service, but to data Business support is very poor, for example F3 frequency point is GERAN frequency point.Then base station for different business hobby UE send frequency point be directed to The corresponding relationship of the service priority of type of service setting is as shown in Table 3 below:

Table 3

All information shown in above-mentioned table 3 will not necessarily issue same UE, be sent for different UE, example Such as, the corresponding service priority for data service setting of the corresponding different frequent points of UE1 is only sent to UE1, i.e. F1:5, F2: 3, F3:1.And the corresponding service priority for traditional business setting of the corresponding different frequent points of UE2 is only sent to UE2, i.e. F1: 1, F2:5, F3:4.The corresponding service priority for the setting of IMS voice of the corresponding different frequent points of UE3 is only sent to UE3, i.e., F1:5, F2:3, F3:0.

So, based on information shown in table 3, assessment knot of these three UE of UE1, UE2, UE3 to the candidate cell of each frequency point Fruit (assuming that three frequency points respectively correspond a candidate cell) is as follows:

The UE1 for liking data service is as follows to the assessment result of the candidate cell of each frequency point:

F1:7+5=12

F2:5+3=8

F3:3+1=4

As it can be seen that the assessed value of the corresponding candidate cell of F1 frequency point is 12, it is the largest, therefore, the UE1 is from candidate cell It selects the corresponding candidate cell of F1 frequency point resident, if the corresponding candidate cell of F1 frequency point has multiple, can therefrom select to believe Number top-quality cell is resident.

The UE2 for liking traditional voice is as follows to the assessment result of the candidate cell of each frequency point:

F1:7+0=7

F2:5+5=10

F3:3+4=7

As it can be seen that the assessed value of the corresponding candidate cell of F2 frequency point is 10, it is the largest, therefore, the UE2 is from candidate cell It selects the corresponding candidate cell of F2 frequency point resident, if the corresponding candidate cell of F2 frequency point has multiple, can therefrom select to believe Number top-quality cell is resident.

The UE3 for liking IMS voice is as follows to the assessment result of the candidate cell of each frequency point:

F1:7+5=12

F2:5+3=8

F3:3+0=3

As it can be seen that the assessed value of the corresponding candidate cell of F1 frequency point is 12, it is the largest, therefore, the UE3 is from candidate cell It selects the corresponding candidate cell of F1 frequency point resident, if the corresponding candidate cell of F1 frequency point has multiple, can therefrom select to believe Number top-quality cell is resident.

Alternatively, it is also possible to carry the absolute priority of each frequency point in table 2.

Information shown in table 1 can also be sent to UE by dedicated signaling by base station.In such cases, based on letter shown in table 2 Breath, assessment result and implementation of these three UE with different business hobby of UE1, UE2, UE3 to the candidate cell of each frequency point Example 1 is similar, is no longer repeated herein.

The present embodiment may be implemented base station and carry out individual cell selection control to each UE.

Referring to Fig. 3, in network side, a kind of cell device for selection controlling provided in an embodiment of the present invention, comprising:

Service priority determination unit 301, for determining multiple frequency points and the service priority for type of service setting Corresponding relationship, wherein frequency point under at least two different radio access technologies RAT is corresponding to be arranged for same type of service Service priority it is different；

Notification unit 302, for leading to the corresponding relationship of multiple frequency points and the service priority for type of service setting Know to user equipment (UE).

Preferably, the notification unit 302 is specifically used for:

Preferably, when the notification unit 302 is corresponding for each by each frequency point by dedicated signaling mode When the service priority of type of service setting is notified to UE, the notification unit 302 passes through radio resource control RRC Connection Release Message or RRC connection reconfiguration set message for the corresponding service priority for the setting of each type of service of each frequency point It notifies to UE.

Preferably, when the notification unit 302 is corresponding for each by each frequency point by dedicated signaling mode When the service priority of type of service setting is notified to UE, described device further include:

Acquiring unit 303, for determining multiple frequency points in the service priority determination unit 301 and being directed to type of service Before the corresponding relationship of the service priority of setting, directly connected originally from the UE or from core-network side or from the UE Base station obtain the type of service preference information of the UE, the type of service preference information of the UE is for indicating the UE for difference The initiation frequency of type service；

The service priority determination unit 301 is specifically used for:

Preferably, when the acquiring unit 303 directly obtains the type of service preference information of the UE from the UE, it is specific to use In:

Preferably, when the acquiring unit 303 obtains the type of service preference information of the UE from core-network side, it is specific to use In:

Preferably, the acquiring unit 303 obtains the type of service hobby letter of the UE from the base station that the UE was connected originally When breath, it is specifically used for:

Preferably, the service priority determination unit 301 is also used to: it is corresponding for any business to adjust any frequency point The service priority of type setting；

The notification unit 302 is also used to: by frequency point and the service priority adjusted for type of service setting Corresponding relationship is notified to UE.

Preferably, above-mentioned service priority determination unit 301, can be the modules such as processor, acquiring unit 303 and notice Unit 302 can be the modules such as transceiver.

Preferably, cell device for selection controlling provided in an embodiment of the present invention, can be the network equipments such as base station.

Referring to fig. 4, in terminal side, a kind of cell selecting apparatus provided in an embodiment of the present invention, comprising:

Service priority determination unit 401, for determining multiple frequency points and the service priority for type of service setting Corresponding relationship, wherein frequency point under at least two different radio access technologies RAT is corresponding to be arranged for same type of service Service priority it is different；

Selecting unit 402, for the corresponding relationship according to multiple frequency points and the service priority for type of service setting Carry out cell selection.

Preferably, the selecting unit 402 is specifically used for:

Preferably, the selecting unit 402 initiates the maximum service class of frequency for the UE according to each frequency point is corresponding When the service priority of type setting carries out cell selection, it is specifically used for:

Preferably, the selecting unit 402 initiates the maximum service class of frequency for the UE according to each frequency point is corresponding The absolute priority of frequency point is specifically used for when carrying out cell selection where the service priority and candidate cell of type setting:

The maximum candidate cell of assessed value is selected, as resident cell.

Preferably, the device further include:

Transmission unit 403, for the type of service preference information of UE to be sent to network side.

Preferably, the transmission unit 403 is specifically used for:

Preferably, above-mentioned service priority determination unit 401 and selecting unit 402, can be the modules such as processor.Hair Unit 403 is sent to can be the modules such as transceiver.

Preferably, cell selecting apparatus provided in an embodiment of the present invention, can be the user equipmenies such as UE.

In conclusion UE not only considers the absolute priority of frequency point when cell selects in the embodiment of the present invention, it is also contemplated that The frequency point is to the service priority of different business and UE to the hobby of different business.The serving BS of UE directly from UE or The type of service hobby of UE is known from the base station that core net or UE connected originally.Base station is the frequency point pair that UE configures cell selection When the service priority information being arranged for different service types answered, with reference to the type of service preference information of the UE.Base station exists The corresponding service priority information for different service types setting of frequency point relevant to business is broadcasted in system information.UE knot Close the absolute priority for considering frequency point, the type of service hobby of oneself, the corresponding industry for different service types setting of frequency point Business precedence information, carries out cell selection.

Each frequency point cell RAT is diverted to by Idle state UE is appropriate to which operator may be implemented in, the embodiment of the present invention In the middle, it avoids being resident the potential overload problem of excessive UE bring on the RAT/ frequency point of high priority.Alternatively, it is also possible to reality Now the UE that different service types are liked is diverted on the RAT for being more suitable for carrying out UE hobby business, so that the business for improving UE is real Existing effect, improves user experience.Technical solution provided in an embodiment of the present invention can apply LTE, UMTS, TD-SCDMA, In the wireless communication systems such as CDMA2000, GERAN.

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

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

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

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

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

Claims

1. a kind of cell selects control method, which is characterized in that this method comprises:

Base station determines the corresponding relationship of multiple frequency points with the service priority for type of service setting, wherein at least two are not With the frequency point under wireless access technology RAT, the corresponding service priority for the setting of same type of service is different；

The base station notifies the corresponding relationship of multiple frequency points and the service priority for type of service setting to user equipment UE, so that the UE carries out cell choosing according to the corresponding relationship of multiple frequency points and the service priority being arranged for type of service It selects；

Wherein, the UE carries out cell choosing according to the corresponding relationship of multiple frequency points and the service priority for type of service setting It selects, comprising:

The UE determines the type of service preference information of the UE, and the type of service preference information of the UE is for indicating that the UE is directed to The initiation frequency of different kinds of business；

The UE is according to multiple frequency points and the corresponding relationship of the service priority for type of service setting and the business of the UE Type preference information determines that the corresponding business for initiating the maximum type of service setting of frequency for the UE of each frequency point is preferential Grade；

The UE according to each frequency point it is corresponding for the UE initiate the service priority of frequency maximum type of service setting into The selection of row cell；

Wherein, the UE is preferential according to the corresponding business for initiating the maximum type of service setting of frequency for the UE of each frequency point Grade carries out cell selection, comprising:

For each candidate cell, the UE is by the absolute priority of frequency point where the candidate cell plus where the candidate cell The service priority that the maximum type of service setting of frequency is initiated for the UE of frequency point is small as the candidate using obtain and value The assessed value in area；

The UE selects the maximum candidate cell of assessed value, as resident cell.

2. the method according to claim 1, wherein all frequency points are corresponding under same wireless access technology RAT It is identical for the service priority of same type of service setting；Alternatively, at least two frequency points under same RAT are corresponding for same The service priority of one type of service setting is different.

3. the method according to claim 1, wherein the base station is corresponding for each business by each frequency point The service priority of type setting is notified to user equipment (UE), comprising:

The base station is by system information broadcast mode, or by dedicated signaling mode, by the corresponding needle of each frequency point The service priority of each type of service setting is notified to UE.

4. according to the method described in claim 3, it is characterized in that, when the base station will be described each by dedicated signaling mode When the corresponding service priority for the setting of each type of service of frequency point is notified to UE, the base station passes through wireless heterogeneous networks RRC connection release message or RRC connection reconfiguration set message, and each frequency point is corresponding for the setting of each type of service Service priority notify to UE.

5. the method according to claim 3 or 4, which is characterized in that when the base station will be described by dedicated signaling mode When the corresponding service priority for the setting of each type of service of each frequency point is notified to UE, the base station determines multiple frequency points Before the corresponding relationship of the service priority for type of service setting, this method further include:

The base station directly obtains the industry of the UE from the UE or from core-network side or from the base station that the UE was connected originally Service type preference information, the type of service preference information of the UE are used to indicate the UE for the initiation frequency of different kinds of business Rate；

The base station determines the multiple frequency points and the business of being directed to for needing to be sent to the UE according to the type of service preference information of the UE The corresponding relationship of the service priority of type setting.

6. according to the method described in claim 5, it is characterized in that, the base station directly obtains the service class of the UE from the UE Type preference information, comprising:

The base station obtains the UE and is liked when establishing radio resource control RRC connection by the type of service that RRC information reports Good information.

7. according to the method described in claim 5, it is characterized in that, the base station obtains the type of service of the UE from core-network side Preference information, comprising:

When the UE and network side establish connection, the control plane message that the base station is sent by core-network side obtains the UE's Type of service preference information；Alternatively,

When cell switching occurs for the UE, the base station obtains core-network side and sends in handoff procedure or after switching completion The UE type of service preference information.

8. according to the method described in claim 5, it is characterized in that, the base station should from the base station that the UE was connected originally acquisition The type of service preference information of UE, comprising:

When cell switching occurs, what the base station that the base station was connected originally by the UE was sent in switching preparation process disappears Breath obtains the type of service preference information of the UE.

9. the method according to claim 1, wherein this method further include:

The base station adjust any frequency point it is corresponding for any type of service setting service priority, and by frequency point be directed to The corresponding relationship of the service priority adjusted of type of service setting is notified to UE.

10. a kind of cell selecting method, which is characterized in that this method comprises:

User equipment (UE) determines the corresponding relationship of multiple frequency points with the service priority for type of service setting, wherein at least The corresponding service priority for the setting of same type of service of frequency point under two different radio access technologies RAT is different；

The UE carries out cell selection according to the corresponding relationship of multiple frequency points and the service priority for type of service setting；

The UE selects the maximum candidate cell of assessed value, as resident cell.

11. according to the method described in claim 10, it is characterized in that, all frequency points are corresponding under same wireless access technology RAT For same type of service setting service priority it is identical；It is directed to alternatively, at least two frequency points under same RAT are corresponding The service priority of same type of service setting is different.

12. according to the method described in claim 10, it is characterized in that, this method further include:

13. according to the method for claim 12, which is characterized in that the UE sends the type of service preference information of the UE To network side, comprising:

The UE establish radio resource control RRC connection when by RRC information report the type of service preference information of itself to Base station；Alternatively,

14. a kind of cell device for selection controlling, which is characterized in that the device includes:

Service priority determination unit, for determining corresponding pass of multiple frequency points with the service priority for type of service setting System, wherein the corresponding business for the setting of same type of service of frequency point under at least two different radio access technologies RAT is excellent First grade is different；

Notification unit, for notifying the corresponding relationship of multiple frequency points and the service priority for type of service setting to user Equipment UE, so that the UE carries out cell according to the corresponding relationship of multiple frequency points and the service priority being arranged for type of service Selection；

The UE selects the maximum candidate cell of assessed value, as resident cell.

15. device according to claim 14, which is characterized in that all frequency points are corresponding under same wireless access technology RAT For same type of service setting service priority it is identical；It is directed to alternatively, at least two frequency points under same RAT are corresponding The service priority of same type of service setting is different.

16. device according to claim 14, which is characterized in that the notification unit is specifically used for:

It is by system information broadcast mode, or by dedicated signaling mode, each frequency point is corresponding for each industry The service priority of service type setting is notified to UE.

17. device according to claim 16, which is characterized in that when the notification unit by dedicated signaling mode by institute State each frequency point it is corresponding for each type of service setting service priority notify to UE when, the notification unit passes through nothing Line resources control RRC connection release message or RRC connection reconfiguration set message, and each frequency point is corresponding for each industry The service priority of service type setting is notified to UE.

18. device according to claim 16 or 17, which is characterized in that when the notification unit passes through dedicated signaling mode When the corresponding service priority for the setting of each type of service of each frequency point is notified to UE, described device is also wrapped It includes:

Acquiring unit, for determining multiple frequency points and the business for type of service setting in the service priority determination unit Before the corresponding relationship of priority, directly obtained from the UE or from core-network side or from the base station that the UE was connected originally The type of service preference information of the UE, the type of service preference information of the UE are used to indicate the UE for different kinds of business Initiate frequency；

The service priority determination unit is specifically used for:

According to the type of service preference information of the UE, determine that each frequency point for needing to be sent to the UE is corresponding for each business The service priority of type setting.

19. device according to claim 18, which is characterized in that the acquiring unit directly obtains the UE's from the UE When type of service preference information, it is specifically used for:

It obtains the UE and is establishing the type of service preference information reported when radio resource control RRC connection by RRC information.

20. device according to claim 18, which is characterized in that the acquiring unit obtains the industry of the UE from core-network side When service type preference information, it is specifically used for:

When the UE and network side establish connection, the type of service of the UE is obtained by the control plane message that core-network side is sent Preference information；Alternatively,

When cell switching occurs for the UE, obtain the UE's that core-network side is sent in handoff procedure or after switching completion Type of service preference information.

21. device according to claim 18, which is characterized in that the acquiring unit is from the base station that the UE was connected originally When obtaining the type of service preference information of the UE, it is specifically used for:

When cell switching occurs, the message that the base station connected originally by the UE is sent in switching preparation process obtains should The type of service preference information of UE.

22. device according to claim 14, which is characterized in that the service priority determination unit is also used to: adjustment The corresponding service priority for the setting of any type of service of any frequency point；

The notification unit is also used to: by the corresponding relationship of frequency point and the service priority adjusted for type of service setting It notifies to UE.

23. a kind of cell selecting apparatus, which is characterized in that the device includes:

Selecting unit, for carrying out cell according to the corresponding relationship of multiple frequency points and the service priority for type of service setting Selection；

Wherein, the corresponding relationship according to multiple frequency points and the service priority for type of service setting carries out cell choosing It selects, comprising:

Determine the type of service preference information of UE, the type of service preference information of the UE is for indicating the UE for different type The initiation frequency of business；

It is liked according to multiple frequency points and the corresponding relationship of the service priority for type of service setting and the type of service of the UE Good information determines the corresponding service priority that the maximum type of service setting of frequency is initiated for the UE of each frequency point；

Cell is carried out according to the corresponding service priority for initiating the maximum type of service setting of frequency for the UE of each frequency point Selection；

Wherein, described according to the corresponding service priority for initiating the maximum type of service setting of frequency for the UE of each frequency point Carry out cell selection, comprising:

For each candidate cell, by the absolute priority of frequency point where the candidate cell plus frequency point where the candidate cell The service priority that the maximum type of service setting of frequency is initiated for the UE, using obtain and value commenting as the candidate cell Valuation；

The maximum candidate cell of assessed value is selected, as resident cell.

24. device according to claim 23, which is characterized in that all frequency points are corresponding under same wireless access technology RAT For same type of service setting service priority it is identical；It is directed to alternatively, at least two frequency points under same RAT are corresponding The service priority of same type of service setting is different.

25. device according to claim 23, which is characterized in that the selecting unit is specifically used for:

Cell is carried out according to the corresponding service priority for initiating the maximum type of service setting of frequency for the UE of each frequency point Selection.

26. device according to claim 23, which is characterized in that the device further include:

27. device according to claim 26, which is characterized in that the transmission unit is specifically used for:

When UE establishes radio resource control RRC connection, report the type of service preference information of itself to base by RRC information It stands；Alternatively,