CN103037426B - The method and wireless access network of selection terminal during a kind of minimum drive test - Google Patents

Abstract

The invention discloses a kind of method of selection terminal during minimum drive test and wireless access network, the problem of UE performs MDT can not be selected to solve access network in the prior art.Methods described includes：The UE of access user's tolerance band configured information is sent to RAN by core net by interface message, and user's tolerance band configured information is used for the PLMN for indicating that UE supports MDT measurements；The RAN for MDT when performing UE selections, selection current service PLMN belongs to the PLMN indicated by user's tolerance band configured information of the UE and allows the UE in PLMN lists simultaneously, or the PLMN indicated by selection user's tolerance band configured information is with allowing PLMN lists to have the UE of common factor.The wireless access network includes receiving module and selecting module.The above method can realize the MDT measurements under many PLMN scenes.

Description

The method and wireless access network of selection terminal during a kind of minimum drive test

Technical field

The present invention relates to the communications field, more particularly to carry out in mobile communication system minimum drive test (MDT, Minimization of Drive Test) when selection terminal method and wireless access network (RAN).

Background technology

With the development and the popularization of radio communication of wireless technology, the wireless network of different technologies is mutual and deposits, and covers Scope is also increasing, for operator, it is necessary to management network and equipment it is also more and more become increasingly complex, for net The operation maintenance of network, operator needs to pay the artificial drive test of substantial amounts of manpower and materials progress, and efficiency is very low.In order to be able to improve this The situation of kind, third generation partnership project (3GPP, Third Generation Partnership Projects) is in general land Ground wireless access network (UTRAN, Universal Terrestrial Radio Access Network, including base station node B And radio network controller (RNC)) and evolution universal land radio access web (E-UTRAN, Evolved Universal Terrestrial Radio Access Network, including evolution base station eNB) system network in start introduce minimize road Brake.

Minimize drive test function and collect measurement using user equipment (UE, User Equipment, or be terminal) is automatic Information reports that (RAN, Radio Access Network divide to wireless access network by chain of command (Control Plane) signaling Radio Network System (Radio Network System, RNS) that Dui Yingyu be in UTRAN systems, corresponding to E-UTRAN systems In evolution base station eNB), then reported by wireless access network and collect entity (TCE, Trace Collection to tracking Entity), for the network optimization, for example, find and solve the problems, such as the network coverage.

MDT supports the MDT (Management based MDT) based on the management and MDT (Signaling based on signaling Based MDT) two ways.

- the MDT based on management activation is typically (by taking E-UTRAN systems as an example, same below) network management net Member, such as operation management maintainance (OAM, Operation AdministrationMaintenance) or NE management (EM, Element Manager), the tracking activate message (Trace session activation) configured comprising MDT is sent to eNB Measured with the MDT for activating some UE, eNB selects suitable UE according to the configuration information received, and MDT configuration information is sent to The UE chosen, the UE carry out corresponding MDT measurements according to configuration information and reported.As shown in Figure 1.

- the MDT based on signaling activation is typically that OAM sends the tracking activate message (Trace configured comprising MDT Session activation) message is to HSS to activate some MDT measurements, and the MDT configuration information is sent to MME by HSS, so MME selects UE according to configuration information afterwards, and send configuration information to UE by eNB, and UE carries out corresponding according to configuration information MDT is measured and reported.As shown in Figure 2.

Further, state in which when performing MDT measurements according to UE, MDT pattern is further divided into：

- daily record MDT (Logged MDT)：UE is in Radio Resource connection control (RRC, Radio Resource Control) Record is measured under idle condition (IDLE).Refer to RRC_IDLE states for E-UTRAN systems；Also wrapped for UTRAN systems Include cell paging channel state (CELL_PCH) and UTRAN Acceditation Area PCH states (utran registration area_paging indicator channel)；

- MDT (Immediate MDT) immediately：UE is measured under RRC connected states and reported.Refer to for E-UTRAN systems RRC_CONNECTED states；Refer to cell dedicated channel status (CELL_DCH) for UTRAN systems.

Wherein described MDT configuration information includes：Regional extent Area scope (such as tracking area TA or cell Cell), Track reference Trace Reference, UE need the measurement type carried out, and TCE IP address etc..

It should be noted that for single UE, UE may reside within multiple networks, its public land supported is moved Dynamic network (Public Land Mobile Network, PLMN) list, referred to as equivalence PLMN lists (EPLMN list, Equivalent PLMN list), these can be arranged by signing information, and UE performs cell selection gravity treatment in these networks, PLMN is selected, and these networks are all of equal value when mobility or switching.And with UE IMSI International Mobile Subscriber Identity (IMSI, International Mobile Subscriber Identity) in national code (MCC) and region code (MNC) constitute PLMN identicals PLMN is referred to as the Home PLMN (HPLMN, Home PLMN) of the UE, further, and UE can also safeguard a set of in itself Home PLMN list (EHPLMN list, Equivalent HPLMN lis) of equal value, these PLMN and HPLMN equivalents.Though Right UE can be resident or set up connection in multiple networks, but because MDT's reports information to carry UE private information, In order to ensure UE privacy (Privacy), Current protocol only allow selection current service network be home network (i.e. HPLMN or The corresponding networks of EPLMN) UE carry out MDT measurements, i.e., the current registration PLMN (Registered PLMN) of only UE or clothes When business PLMN (Serving PLMN) is UE Home PLMN, the UE could be chosen to perform MDT.The PLMN is also referred to as MDT PLMN, i.e. UE are just allowed to select execution MDT only under MDT PLMN network, if UE have left the PLMN for issuing configuration Corresponding network (i.e. MDT PLMN), MDT measurements will be suspended or delete.

It is not that each UE is propped up because being related to the ability of user terminal (i.e. UE) and other signing demands of user Hold MDT measurements and report, therefore each UE has the user's license (User Consent) of oneself to indicate whether UE supports MDT, User can change the user's license of oneself at any time.For the MDT based on signaling, UE selection is completed by core net, and core Heart net (CN, Core Network) is known about for above-mentioned UE information, so core net can select correct UE；But for base In the MDT of management, UE selections are completed at RAN sides (i.e. eNB or RNC), in order to aid in RAN to select suitable UE, core net The shape of (Management Based MDT Allowed) can be allowed by UE user's License Info with the MDT based on management Formula is sent to RAN, if the information indicate that to allow, then it represents that the UE is to support MDT, therefore can select to perform based on pipe The MDT of reason, on the contrary cannot.But currently only UE is registered in home network (i.e. HPLMN or the corresponding nets of EHPLMN of oneself Network) in when, core net just can give RAN send user's License Info, otherwise core net will not send the information, now UE also can not It can be chosen to perform MDT measurements and report.

As described above, existing protocol only considers MDT measurements of the UE in a network.And in real network deployment, it is same Individual operator may run multiple networks simultaneously, may have different PLMN marks respectively, and can have between each network Network (the ratio of identical wireless access technology (RAT, Radio Access Technology) or different access technologies Such as 2G, 3G network etc.).The scene of network share is there is likely to be between other different operators, if that is, same cell possesses Dry PLMN, and belong to multiple different operators, this can be used by belonging to the UE of multiple operators (or difference PLMN) Cell.Fig. 3 is simply illustrative figure, and operator 1 possesses PLMN1 and PLMN2 cell a and cell b, and operator 2 possesses PLMN3 With PLMN4 cell b and cell c, wherein cell b is network share cell.Operator may expect that UE can be while perform PLMN1 and PLMN2 MDT measurements.

Under above-mentioned many PLMN scenes, the MDT in existing protocol has been unsatisfactory for operator needs, and operator expects that UE can be MDT measurements are can carry out on multiple networks in multiple PLMN and are reported.The permission PLMN lists specified are needed for this (Allowed PLMN list), to indicate that (i.e. the PLMN of network is marked the network range of operator's expectation UE progress MDT measurements Know list).The UE in the corresponding networks of PLMN in permission PLMN lists is only in, is possible to be chosen to perform MDT.So And under the current protocol, user's License Info only exists in UE home network (i.e. HPLMN or the corresponding networks of EHPLMN), So if the MDT measurements under multiple PLMN are expected to open by operator, wireless access network element possibly can not be known when selecting UE UE whether allow in the network under corresponding PLMN perform MDT measurement and report, i.e., can not know UE under other networks whether There is the MDT based on management to allow configured information, therefore RAN can not correctly select UE to perform MDT.

The content of the invention

The technical problem to be solved in the present invention is to provide a kind of method of selection terminal during minimum drive test and wireless access Net, the problem of UE performs MDT can not be selected to solve access network in the prior art.

In order to solve the above technical problems, the invention provides a kind of method for selecting terminal during minimum drive test, including：

User's tolerance band configured information of the terminal (UE) of access is sent to and wirelessly connect by core net by interface message Network (RAN), user's tolerance band configured information is used to indicate that UE supports to minimize the PLMN of drive test (MDT) measurement；

The RAN for MDT when performing UE selections, and selection current service PLMN belongs to user's tolerance band of the UE simultaneously The UE in PLMN and permission PLMN lists indicated by configured information, or indicated by selection user's tolerance band configured information PLMN is with allowing PLMN lists to have the UE of common factor.

Further, user's tolerance band configured information includes one or more PLMN information, the PLMN information For PLMN marks or PLMN indexes or message bit pattern.

Further, the core net also sends the MDT based on management and permitted when sending user's tolerance band configured information Perhaps configured information, when the MDT based on management allows the content of configured information to be designated as allowing, user's tolerance band The content of configured information is the PLMN that UE supports MDT measurements, when the MDT based on management allows the content of configured information to indicate During not allow, the content of user's tolerance band configured information does not support the PLMN of MDT measurements for UE.

Further, the interface message includes in the lte networks：Initial UE context is set up on request message, or UE Hereafter change request message, or handover request message, or path handover request ack message, or newly-increased message.

Further, interface message includes described in 3G network：RAB assignment request message, or public mark Know message, or newly-increased message.

Further, methods described is applied to the MDT modes based on management, and the MDT modes based on signaling.

In order to solve the above technical problems, the invention provides the wireless access network that terminal is selected during a kind of minimum drive test (RAN), including receiving module and selecting module, wherein：

The receiving module, user's tolerance band for receiving the terminal (UE) that core net is sent by interface message refers to Show information, user's tolerance band configured information is used to indicate that UE supports to minimize the PLMN of drive test (MDT) measurement；

The selecting module, for simultaneously when performing UE selections for MDT, selection current service PLMN belongs to the use of the UE The UE in PLMN and permission PLMN lists indicated by the tolerance band configured information of family, or selection user tolerance band indicate letter The indicated PLMN of breath is with allowing PLMN lists to have the UE of common factor.

Further, user's tolerance band configured information includes one or more PLMN information, the PLMN information For PLMN marks or PLMN indexes or message bit pattern.

Further, the receiving module be additionally operable to receive with user's tolerance band configured information and meanwhile send based on pipe The MDT of reason allows configured information；When the content of the MDT permission configured informations based on management is designated as allowing, the user The content of tolerance band configured information is the PLMN that UE supports MDT measurements；The MDT based on management allows in configured information When appearance is designated as not allowing, the content of user's tolerance band configured information does not support the PLMN of MDT measurements for UE.

Further, the interface message includes in the lte networks：Initial UE context is set up on request message, or UE Hereafter change request message, or handover request message, or path handover request ack message, or newly-increased message；In 3G network The interface message includes：RAB assignment request message, or public identifier message, or newly-increased message.

Using present invention method, it is possible to achieve wireless access network obtains user tolerance bands of the UE in many PLMN Configured information, so as to select suitable UE to perform MDT measurements, realizes the MDT measurements under many PLMN scenes.UE is avoided many When being moved in multiple networks under individual PLMN scenes, MDT measurement configuration can not continuous and effective defect.

Brief description of the drawings

Fig. 1 is the minimum drive test schematic flow sheet based on management；

Fig. 2 is the minimum drive test schematic flow sheet based on signaling；

Fig. 3 is network share deployment scenario schematic diagram；

Fig. 4 is the inventive method embodiment flow chart；

Fig. 5 is the wireless accessing network structure schematic diagram for realizing Fig. 4 methods；

Fig. 6 is the corresponding flow chart of the inventive method embodiment one；

Fig. 7 is the corresponding flow chart of the inventive method embodiment two；

Fig. 8 is the corresponding flow chart of the inventive method embodiment three；

Fig. 9 is the inventive method example IV correspondence flow chart；

Figure 10 is the corresponding flow chart of the inventive method embodiment five.

Embodiment

The embodiment of the present invention provides the enhancing side that a kind of method of selection terminal when minimizing drive test is user's License Info Method, as shown in figure 4, comprising the following steps：

Step one, user's tolerance band configured information of the terminal (UE) of access is sent to by core net by interface message Wireless access network (RAN), user's tolerance band configured information is used for the PLMN for indicating that UE supports MDT measurements；

Above-mentioned user's tolerance band configured information can include one or more PLMN information, and the PLMN information is marked for PLMN Know or PLMN indexes or bitmap (bitmap) information.RAN can obtain specific PLMN according to the index or message bit pattern and mark Know information.Preferably, the index or message bit pattern of the PLMN, can be index or the bitmap letter for UE PLMN lists of equal value Breath or all PLMN lists supported for RAN, according to the list, RAN can index or find corresponding PLMN Mark.

Preferably, it can indicate that UE supports the PLMN of MDT measurements using exclusive method, such as user's tolerance band indicates letter The content of breath is the PLMN information permitted in the absence of user, and the PLMN information can specifically use clear and definite designated identification, or use The mode of index or bitmap is specified, two kinds of equivalent indicating means, specifically can be depending on implementing using that.

Preferably, user's tolerance band configured information can allow (Management Based with the MDT based on management MDT Allowed) configured information is used together：Allow to be designated as allowing if based on the MDT of management, then user's tolerance band refers to The PLMN of MDT measurements can be supported for UE by showing the content of information；Allow to be designated as not allow if based on the MDT of management, then use The content of family tolerance band configured information can not support the PLMN that MDT is measured for UE.

Above-mentioned interface message can be the already present message of existing protocol；Such as can be in initial UE in the lte networks Hereafter set up request (Initial UE Context Setup Request), or UE context modification requests (UE Context Modification Request, or handover request (Handover Request) message, or path switching please Seek response (Path Swith Request Acknowledge) message etc..Can be that RAB is assigned in 3G network Request message (RAB Assignment Request) message, or public identifier (Common ID) message etc.；Described interface Message can also use newly-increased message.

Step 2, RAN for MDT when performing UE selections, and selection current service PLMN (i.e. RPLMN) is while belong to permission Support MDT measurements indicated by PLMN lists (Allowed PLMN list) and user's tolerance band configured information of the UE PLMN UE, or selection user's tolerance band configured information indicated by support MDT measurement PLMN with allow PLMN arrange Table (Allowed PLMN list) has the UE of common factor.

The above method could be applicable to the MDT based on signaling, now in addition to suitable for the MDT modes based on management：It is right In the measurements of MDT immediately, RAN can determine that MDT measurement configuration informations are cut in UE according to user's tolerance band configured information Whether change during (or reorientation) needs to pass to target side；For daily record MDT measurements, RAN can enter one according to the information Step examines UE to need to perform the permission PLMN lists of MDT measurements.

The RAN of the above method is realized as shown in figure 5, including receiving module and selecting module, wherein：

The receiving module, user's tolerance band for receiving the UE that core net is sent by interface message indicates letter Breath, user's tolerance band configured information is used for the PLMN for indicating that UE supports MDT measurements；

The selecting module, for simultaneously when performing UE selections for MDT, selection current service PLMN belongs to the use of the UE The UE in PLMN and permission PLMN lists indicated by the tolerance band configured information of family, or selection user tolerance band indicate letter The indicated PLMN of breath is with allowing PLMN lists to have the UE of common factor.

Preferably, above-mentioned user's tolerance band configured information includes one or more PLMN information, and the PLMN information is PLMN is identified or PLMN indexes or message bit pattern.

Preferably, above-mentioned receiving module be additionally operable to receive with user's tolerance band configured information and meanwhile send based on management MDT allow configured information；When the content of the MDT permission configured informations based on management is designated as allowing, the user is permitted Can scope configured information content for UE support MDT measurement PLMN；The MDT based on management allows the content of configured information When being designated as not allowing, the content of user's tolerance band configured information does not support the PLMN of MDT measurements for UE.

Above-mentioned interface message includes in the lte networks：Initial UE context sets up request message, or UE contextual modifications please Ask message, or handover request message, or path handover request ack message, or newly-increased message.

Above-mentioned interface message includes in 3G network：RAB assignment request message, or public identifier message, or Newly-increased message.

For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with accompanying drawing to the present invention Embodiment be described in detail.It should be noted that in the case where not conflicting, in the embodiment and embodiment in the application Feature can mutually be combined.

Embodiment one

The present embodiment realizes the Enhancement Method of user's License Info in the lte networks, as shown in fig. 6, including following step Suddenly：

Step 1, network management network element (such as OAM, or EM) send trace session activation message to eNB activation based on management MDT, MDT configuration information is carried in message, wherein MDT configuration information can include MDT measurement types, the measurement for needing to perform Sequential time, measurement period, the track reference (Trace Reference) of measurement, the regional extent (area scope) of measurement Information etc., while also including the permission PLMN list informations (such as list includes PLMN1, PLMN2) that MDT is measured, only at this MDT measurements can be just performed in the corresponding networks of list PLMN.ENB can store the MDT configuration information upon receipt.

This step is the step of network management network element activates the MDT based on management, and this step is not limited to perform at this moment, The random time that can be set up in UE after connection is performed.

Step 2, UE initiate wireless heterogeneous networks (RRC, Radio Resource Control) connection to eNB and set up stream Journey, completes the foundation of wireless connection；

Step 3, eNB send initial UE message (Initial UE Message) to MME；

Step 4, MME send initial UE context to eNB and set up request message (Initial UE Context Setup Request), the MDT based on management is carried in message allows (Management based MDT Allowed), and is designated as permitting Perhaps, UE user's tolerance band configured information is also carried in addition, and the configured information includes the PLMN information that UE supports MDT measurements. PLMN information such as indicated by user's tolerance band configured information includes PLMN1, PLMN2, PLMN3, and eNB is stored after receiving PLMN lists indicated by UE user's tolerance band configured information；

In the present embodiment, user's tolerance band configured information allows configured information to be used together with the MDT based on management, In other embodiment, user's tolerance band configured information can also be used alone, i.e., the network specified in user's allowed band Interior acquiescence allows the MDT based on management to measure, and now the MDT based on management allows instruction can be with default.

Preferably, user's tolerance band configured information that MME is sent can also be the index for the PLMN for possessing user's license Or message bit pattern, index or the object of bitmap can be that all PLMN that UE PLMN lists of equal value or eNB are supported are arranged Table；ENB can find corresponding PLMN identification informations according to index or bitmap.

In other embodiments, above-mentioned user's tolerance band configured information can also be indicated using exclusive method, such as core Net indicates which PLMN is not present user and permitted, can also specifically use clear and definite designated identification, or using indexing or bitmap Mode is specified.

Step 5, eNB initiate RRC connection Reconfiguration Procedures to UE, complete the foundation of radio bearer.

Step 6, eNB send initial context foundation response (Initial UE message Response) to MME and disappeared Breath, the context for completing UE is set up；

Above-mentioned steps 2-6 is that radio bearer sets up process.

Step 7, eNB are configured according to MDT, the MDT based on management allows to indicate and UE user's tolerance band indicates letter Breath performs UE selection, to perform the MDT based on management.If UE current service PLMN (i.e. RPLMN) is while belong to MDT Permission PLMN lists and the UE user's tolerance band indicate PLMN lists in when, then select the UE perform MDT；Or such as The PLMN lists and MDT permission PLMN lists that fruit UE user's tolerance band configured information is indicated are present when occuring simultaneously, and eNB can be with The UE is selected to perform MDT measurements and report；

For example, according to the first system of selection, if UE current services PLMN is PLMN3, the PLMN is not belonging to MDT measurements Allow PLMN list informations (including PLMN1 and PLMN2), then RAN will not select the UE.According to second of system of selection, although The service PLMN of UE currently are PLMN3, but the use of MDT permission PLMN list informations (including PLMN1 and PLMN2) and the UE The PLMN lists (including PLMN1, PLMN2 and PLMN3) that family tolerance band configured information is indicated have common factor：PLMN1 and PLMN2, Then RAN can select the UE to carry out MDT measurements, and MDT measurements are carried out again when the UE is moved in PLMN1 or PLMN2.

Step 8, eNB send MDT measurements and are allocated to UE.UE carries out MDT measurements according to configuration information and reported.

The processing method of user's tolerance band in the present embodiment is applied equally to 3G systems.

Embodiment two

The present embodiment realizes the Enhancement Method of user's License Info in 3G network, as shown in fig. 7, comprises following step Suddenly：

Step 1, UE initiate wireless heterogeneous networks (RRC, Radio Resource Control) connection to RNC and set up stream Journey, completes the foundation of wireless connection；

Step 2, RNC are to core net (such as Serving GPRS Support Node, SGSN, Serving GRPS Support SN) Send initial UE message (Initial UE Message)；

Step 3, core net send in public identifier (Common ID) message, message to RNC and carry the MDT based on management Allow to indicate (Management based MDT Allowed), wherein be designated as allowing, and UE user's tolerance band refers to Show information, the information includes the PLMN list informations that UE supports MDT measurements.Indicated by such as user's tolerance band configured information PLMN includes PLMN1, PLMN2, PLMN3；The storage UE MDT based on management allows to indicate and corresponding after RNC is received User's tolerance band configured information；

In the present embodiment, the step of network management network element (OAM) activates the MDT based on management was set up in radio bearer Completed in journey.In other embodiments, the random time set up in UE before connection is completed can also occur for the step.

In the present embodiment, user's tolerance band configured information allows configured information to be used together with the MDT based on management, In other embodiment, user's tolerance band configured information can also be used alone, i.e., the network specified in user's allowed band Interior acquiescence allows the MDT based on management to measure, and now the MDT based on management allows instruction can be with default.

Preferably, user's tolerance band configured information that MME is sent can also be the index for the PLMN for possessing user's license Or message bit pattern, index or the object of bitmap can be that all PLMN that UE PLMN lists of equal value or RNC are supported are arranged Table；RNC can find corresponding PLMN identification informations according to index or bitmap.

In other embodiments, above-mentioned user's tolerance band configured information can also be indicated using exclusive method, such as core Net indicates which PLMN is not present user and permitted, can also specifically use clear and definite designated identification, or using indexing or bitmap Mode is specified.

Step 4, core net send RAB assignment request message (RAB Assignment Request) to RNC Message；

Step 5, RNC initiate wireless just at Establishing process (RB Setup) to UE, complete the foundation of radio bearer；

Step 6, RNC send RAB to core net and assign response message (RAB Assignment Response) message, completes the foundation of UE contexts and carrying；

Step 7, network management network element (such as OAM or EM) send trace session activation message to RNC activation based on management MDT, MDT configuration information is carried in message, wherein MDT configuration information can include MDT measurement types, the measurement for needing to perform Sequential time, measurement period, the track reference (Trace Reference) of measurement, the regional extent (area scope) of measurement Information etc., while also including the permission PLMN list informations (such as list includes PLMN1, PLMN2) that MDT is measured, only at this MDT measurements can be just performed in the corresponding networks of list PLMN.RNC stores the MDT configuration information upon receipt.

Step 8, RNC are configured according to MDT, the MDT based on management allows to indicate and UE user's tolerance band configured information UE selection is performed, to perform the MDT based on management；

In the present embodiment, handed over if the permission PLMN lists for the PLMN and MDT that UE user's tolerance band is indicated are present During collection, RNC selects the UE to perform MDT measurements and report.

In other embodiments, RNC can also be sentenced during UE selections according to UE current service PLMN (RPLMN) It is disconnected, for example, only UE service PLMN is met in the requirement of PLMN lists is allowed simultaneously, meet again and be in user's tolerance band Requirement in the PLMN lists that configured information is indicated, such UE is just chosen to perform MDT measurements and reported.Base when implementing UE system of selection can be formulated according to MDT measurement pattern and operator's real needs by standing.

Step 9, RNC send MDT measurements and are allocated to UE.UE carries out MDT measurements according to configuration information and reported.

Embodiment three

The present embodiment realizes the update method of user's tolerance band configured information in the lte networks, as shown in figure 8, Comprise the following steps：

Step 1, the UE for being in normal connection status, if UE user's tolerance band is changed, MME can be with ENB is indicated by UE context modification requests message (UE Context Modification Request), wherein carrying more User's tolerance band configured information after new, wherein user's tolerance band configured information can be PLMN index information, eNB The PLMN lists of equal value (EPLMN list) in UE contexts index each PLMN identification information upon receipt, and update The corresponding information being locally stored；

As in the preceding embodiment, UE user's tolerance band configured information can also allow with the MDT based on management Instruction is used cooperatively, and here is omitted.

In other embodiments, MME can also pass through other existing S1 mouthfuls of message, such as path handoff response (Path Switch Response), or user's tolerance band configured information on newly-increased information updating eNB.

In 3G network, core net can also update user's tolerance band configured information on RNC, such as by wirelessly connecing Enter to carry assignment request message.

Step 2, eNB reply MME UE contextual modifications response (UE Context Modification Response) and disappeared Breath；

Step 3, network management network element (such as OAM, or EM) send trace session activation message to eNB activation based on management MDT, MDT configuration information is carried in message, wherein MDT configuration information can include MDT measurement types, the measurement for needing to perform Sequential time, measurement period, the track reference (Trace Reference) of measurement, the regional extent (area scope) of measurement Information etc., while also including the index information for the permission PLMN lists that MDT is measured, only in the corresponding networks of list PLMN MDT measurements can just be performed.ENB can store the MDT configuration information upon receipt.

Step 4, eNB perform UE selection according to user's tolerance band configured information of MDT configurations and UE, to perform base In the MDT of management.If UE current service PLMN (i.e. RPLMN) is while belong to MDT permission PLMN lists and the use of the UE The UE is selected to perform MDT when in the PLMN lists that family tolerance band is indicated；Or if what UE user's tolerance band was indicated PLMN lists are when MDT permission PLMN lists exist and occured simultaneously, and eNB can select the UE to perform MDT measurements and report；

Step 5, eNB send MDT measurements and are allocated to UE, and UE carries out MDT measurements according to configuration information and reported.

Example IV

The present embodiment realizes the processing method of user's License Info in the lte networks using switching flow, such as Fig. 9 institutes Show, comprise the following steps：

Step 1, source eNB to MME initiate switching require (Handover Required) message, wherein carry target eNB and Cell identity information；

Step 2, MME send handover request (Handover Request) message after receiving to target eNB, wherein carrying UE contextual information, allows instruction and user's tolerance band configured information including the MDT based on management；Target ENB stores UE contextual information after receiving.

Above-mentioned user's tolerance band configured information can be clear and definite PLMN identification lists or PLMN index or Message bit pattern.It may determine that UE allows execution MDT to measure and report in which PLMN network according to information object eNB.

Step 3, target eNB be UE into after distribution of work resource, send switching request response (Handover to MME Request Acknowledge) message；

Step 4, MME send switching command (Handover Command) message to source eNB；

Step 5, source eNB send switching command to UE, indicate that UE is switched to target eNB；

Step 6, UE initiate synchronous to target eNB, and send handoff completion message (Handover Complete)；

Step 7, target eNB send switching notice (Handover Notify) message to MME, indicate that switching is completed；

Step 8, MME send UE contexts to source eNB and discharge (UE Context Release) flow, and UE is in source for release Context and resource on eNB.

By above-mentioned steps, MME is completed in handoff procedure and indicates target eNB on the UE MDT's based on management Allow to indicate and corresponding user's tolerance band configured information.Target eNB can be according to the information and the MDT oneself stored Configuration information come judge whether to select the UE carry out MDT measurements.

In above-mentioned steps, UE user's tolerance band configured information can also be used alone, i.e., in user's allowed band Acquiescence allows the MDT based on management to measure in the network specified.

In 3G network, source RNC can also by switching flow by the tolerance band information transmission of user to target RNC。

Embodiment five

When the present embodiment realizes the MDT measurement configurations performed in the lte networks based on signaling, user's tolerance band indicates letter The application method of breath, as shown in Figure 10, comprises the following steps：

Step 1, MME selections UE perform the MDT measurements based on signaling and reported；

Step 2, MME send tracking and start (Trace Start) message to eNB, wherein carry MDT immediately matches somebody with somebody confidence Breath, including allow PLMN list informations；ENB stores the MDT configuration information after receiving；

Step 3, eNB send measurement configuration to start the MDT measurements immediately to UE；

Above-mentioned steps 1~3 are the normal measurement activations of MDT immediately based on signaling.

If step 4, eNB (or source eNB) prepare the UE being switched to target eNB, the reason for initiating the switching can be with It is load balancing, or based on signal quality etc.；

Step 5, source eNB examine UE target eNB's according to the user's tolerance band configured information preserved in UE contexts PLMN is serviced, if UE belongs to the PLMN lists indicated in user's tolerance band configured information in target eNB service PLMN, The MDT measurement configuration informations of storage are delivered to target eNB by source eNB in handoff procedure；Otherwise source eNB is not in handoff procedure The configuration information can be transmitted and give target eNB；Optionally, if the MDT that MME is issued is measured as daily record MDT measurements, eNB can be with Configuration is measured according to the MDT that user's tolerance band configured information examines MME to issue, if the permission PLMN in MDT measurement configurations When list is not occured simultaneously with the PLMN lists that user's tolerance band configured information is indicated, eNB will not give measurement configuration to the UE； Optional eNB can also indicate that failure is opened in MME measurements.

One of ordinary skill in the art will appreciate that all or part of step in the above method can be instructed by program Related hardware is completed, and described program can be stored in computer-readable recording medium, such as read-only storage, disk or CD Deng.Alternatively, all or part of step of above-described embodiment can also use one or more integrated circuits to realize.Accordingly Each module/unit in ground, above-described embodiment can be realized in the form of hardware, it would however also be possible to employ the shape of software function module Formula is realized.The present invention is not restricted to the combination of the hardware and software of any particular form.

Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence Various corresponding changes and deformation, but these corresponding changes and change ought can be made according to the present invention by knowing those skilled in the art Shape should all belong to the protection domain of appended claims of the invention.

Claims (10)

1. a kind of method for selecting terminal during minimum drive test, including：

User's tolerance band configured information of the terminal UE of access is sent to nothing by the SGSN or MME of core net by interface message Line access RAN, user's tolerance band configured information is used to indicate that UE supports the public land for minimizing drive test MDT measurements to move Dynamic network PLMN；

The RAN for MDT when performing UE selections, and user's tolerance band that selection current service PLMN belongs to the UE simultaneously is indicated The UE in PLMN and permission PLMN lists indicated by information, or the PLMN indicated by selection user's tolerance band configured information With allowing PLMN lists to have the UE of common factor.

2. the method as described in claim 1, it is characterised in that：

User's tolerance band configured information include one or more PLMN information, the PLMN information be PLMN identify or PLMN indexes or message bit pattern.

3. method as claimed in claim 1 or 2, it is characterised in that：

The SGSN or MME of the core net are when sending user's tolerance band configured information, and also sending the MDT based on management allows Configured information, when the MDT based on management allows the content of configured information to be designated as allowing, user's tolerance band refers to Show that the content of information supports the PLMN of MDT measurements for UE, when the MDT based on management allows the content of configured information to be designated as When not allowing, the content of user's tolerance band configured information does not support the PLMN of MDT measurements for UE.

4. the method as described in claim 1, it is characterised in that：

The interface message includes in the lte networks：Initial UE context sets up request message, or UE context modification requests disappear Breath, or handover request message, or path handover request ack message, or newly-increased message.

5. the method as described in claim 1, it is characterised in that：

Interface message includes described in 3G network：RAB assignment request message, or public identifier message, or it is newly-increased Message.

6. the method as described in claim 1, it is characterised in that：

Methods described is applied to the MDT modes based on management.

7. the wireless access network RAN of terminal is selected during a kind of minimum drive test, including receiving module and selecting module, wherein：

The receiving module, the user for receiving the terminal UE that the SGSN or MME of core net are sent by interface message permits Scope configured information, user's tolerance band configured information is used to indicate that UE supports to minimize the public land of drive test MDT measurements Mobile network PLMN；

The selecting module, for simultaneously when performing UE selections for MDT, the user that selection current service PLMN belongs to the UE is permitted PLMN that can be indicated by scope configured information and allow the UE in PLMN lists, or selection user's tolerance band configured information institute The PLMN of instruction is with allowing PLMN lists to have the UE of common factor.

8. wireless access network as claimed in claim 7, it is characterised in that：

User's tolerance band configured information include one or more PLMN information, the PLMN information be PLMN identify or PLMN indexes or message bit pattern.

9. wireless access network as claimed in claim 7, it is characterised in that：

The receiving module is additionally operable to receive to be allowed to refer to user's tolerance band configured information while the MDT based on management sent Show information；When the content of the MDT permission configured informations based on management is designated as allowing, user's tolerance band indicates letter The content of breath is the PLMN that UE supports MDT measurements；The MDT based on management allows the content of configured information to be designated as not allowing When, the content of user's tolerance band configured information does not support the PLMN of MDT measurements for UE.

10. wireless access network as claimed in claim 7, it is characterised in that：

The interface message includes in the lte networks：Initial UE context sets up request message, or UE context modification requests disappear Breath, or handover request message, or path handover request ack message, or newly-increased message；

Interface message includes described in 3G network：RAB assignment request message, or public identifier message, or it is newly-increased Message.