CN103716774A - Public land mobile network selection method, equipment and system - Google Patents
Public land mobile network selection method, equipment and system Download PDFInfo
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- CN103716774A CN103716774A CN201210376023.3A CN201210376023A CN103716774A CN 103716774 A CN103716774 A CN 103716774A CN 201210376023 A CN201210376023 A CN 201210376023A CN 103716774 A CN103716774 A CN 103716774A
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Abstract
The embodiment of the invention provides a public land mobile network selection method, equipment and a system and relates to the field of communication. Users are enabled to accurately select a public land mobile network in the process of circuit domain fallback so that a circuit domain service can be provided for the user and accurate billing can be provided for the user. The method comprises the following steps: an attachment request accepting message or a location update request accepting message is sent to user equipment after registration or location update of the user equipment in a circuit switching (CS) domain are completed; and a circuit domain fallback public land mobile network list is acquired according to the attachment request accepting message or the location update request accepting message so that an available 2G or 3G network corresponding to a public land mobile network can be selected according to the circuit domain fallback public land mobile network list to process a CS domain service for a user terminal, wherein the circuit domain fallback public land mobile network list is a circuit domain fallback public land mobile network allowing list or a circuit domain fallback public land mobile network banning list. The public land mobile network selection method provided by the embodiment of the invention is used for public land mobile network selection.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of system of selection, equipment and system of public land mobile network.
Background technology
3GPP (3rd Generation Partnership Project, third generation partner program) CSFB (CS Fallback, circuit domain dropping) technology and SMS over SGs (Short Message Service over SGs short message transmission) technology has been proposed.Wherein, SMS over SGs technology allows and resides in E-UTRAN (Evolved UMTS Territorial Radio Access Network, the UMTS Terrestrial radio access network of evolution) (the Circuit Switched of existing CS for the UE under, circuit switching) territory equipment is realized the transmission of CS short message, and CSFB technology makes the UE (User Equipment, subscriber equipment) of E-UTRAN under covering fall back to 2G by E-UTRAN when needs are processed CS speech business or 3G network CS territory finishing service is processed.
In order greatly to reduce the heavy Radio Access Network lower deployment cost of operator, 3GPP has proposed the shared thought of network, be PLMN (the Public Land Mobile Network of a plurality of operators, public land mobile network) or a plurality of PLMN of Yi Ge operator, can share same Radio Access Network provides radio communication service.For CSFB technology and SMSover SGs technology, operator has proposed the shared demand of CS territory network equally, to the same UE residing under E-UTRAN, can have a plurality of available PLMN to provide CS business for it.The associating attachment flow of initiating at UE or combine and follow the tracks of in area update flow process, if there are a plurality of available PLMN to provide CS business for UE, MME is according to eNodeB (Evolved NodeB, the tracking location information domain at PLMN evolved base station) reporting, current UE place and the CS of operator network selection strategy, select a suitable PLMN.PLMN based on selecting and the tracking location information domain at UE place are to corresponding CS territory LAI (Location Area Identification of UE distribution, position field sign), and select associated MSC or VLR (Mobile Switching Center or Visitor Location Register, mobile switching centre or visitor location register) based on this LAI.
But, conventionally at UE, being registered to after the network of operator, UE can preferentially select PLMN corresponding to LAI, makes UE fall back to 2G or 3G network, thereby initiates CS territory business.But, in the prior art, UE likely selects the corresponding PLMN less than LAI, now UE may select corresponding 2G or the 3G network of available PLMN of another one operator, and at this network, complete to register and provide service as UE, for user provides CS territory business, will collect the charges according to the agreement between another one operator and this UE ownership place like this, cause UE charging problem.
Summary of the invention
Embodiments of the invention provide a kind of system of selection, equipment and system of public land mobile network, can make user in circuit domain dropping process, select accurately public land mobile network to provide circuit domain business for user, thereby provide charging accurately for user.
For achieving the above object, embodiments of the invention adopt following technical scheme:
First aspect, provides a kind of system of selection of public land mobile network, comprising:
After registration or position renewal at completing user equipment in circuit switching (CS) territory, to subscriber equipment, send and to adhere to that message is accepted in request or position updating request is accepted message, so as described subscriber equipment according to described in adhere to that message is accepted in request or position updating request is accepted the list of message acquisition cuicuit domain dropping public land mobile network.
In the first mode in the cards, in conjunction with first aspect, the list of described circuit domain dropping public land mobile network is:
Circuit domain dropping public land mobile network allows list, and described circuit domain dropping public land mobile network allows list to comprise the sign of available public land mobile network; Or
Circuit domain dropping public land mobile network banned list, described circuit domain dropping public land mobile network banned list comprises the sign of the public land mobile network of forbidding.
Second aspect, provides a kind of system of selection of public land mobile network, comprising:
From mobile management entity, receive and to adhere to that message is accepted in request or position updating request is accepted message, and adhere to according to described that message is accepted in request or position updating request is accepted the list of message acquisition cuicuit domain dropping public land mobile network;
According to described circuit domain dropping public land mobile network, to select 2G or 3G network that available public land mobile network is corresponding be user terminal processes CS territory business in list.
In the first mode in the cards, in conjunction with second aspect, adhere to request described in described basis and accept message or position updating request and accept the list of message acquisition cuicuit domain dropping public land mobile network and comprise:
If described in adhere to request and accept message or position updating request and accept message and comprise the list of described circuit domain dropping public land mobile network, directly from described, adhere to request and accept message or position updating request and accept to obtain message the list of described circuit domain dropping public land mobile network;
If described in adhere to request and accept message or position updating request and accept message and comprise the position field sign in CS territory and the Location Area Identification in PS territory, do not comprise the list of described circuit domain dropping public land mobile network, according to the position field sign in described CS territory and the Location Area Identification in PS territory, generate or the described circuit domain dropping public land mobile network list of deriving.
In the second mode in the cards, in conjunction with the first mode in the cards of second aspect or second aspect, the list of described circuit domain dropping public land mobile network is:
Circuit domain dropping public land mobile network allows list, and described circuit domain dropping public land mobile network allows list to comprise the sign of available public land mobile network; Or
Circuit domain dropping public land mobile network banned list, described circuit domain dropping public land mobile network banned list comprises the sign of the public land mobile network of forbidding.
In the third mode in the cards, in conjunction with the first mode in the cards of second aspect or second aspect or the second mode in the cards of second aspect, according to described circuit domain dropping public land mobile network, list selects available public land mobile network to comprise:
If the list of described circuit domain dropping public land mobile network is circuit domain dropping public land mobile network, allow list, in the list of described circuit domain dropping public land mobile network, select an available public land mobile network;
If the list of described circuit domain dropping public land mobile network is circuit domain dropping public land mobile network banned list, in the public land mobile network all public land mobile networks except the list of described circuit domain dropping public land mobile network, select an available public land mobile network.
In the 4th kind of mode in the cards, in conjunction with the first mode in the cards of second aspect or second aspect, to the third mode in the cards, according to described circuit domain dropping public land mobile network, to select 2G or 3G network that available public land mobile network is corresponding be that user terminal processes CS territory business comprises in list:
Non-Access Stratum by described subscriber equipment is sent to the list of described circuit domain dropping public land mobile network the Access Layer of described subscriber equipment, so that the Access Layer of described subscriber equipment is selected an available public land mobile network according to described public land mobile network list, and be user terminal processes CS territory business according to sign selection 2G or the 3G network corresponding with the sign of described public land mobile network of described available public land mobile network.
In the 5th kind of mode in the cards, in conjunction with four kinds of modes in the cards of the first mode to the in the cards of second aspect or second aspect, described method also comprises:
If select less than available public land mobile network, refusal is processed CS territory business.
In the 6th kind of mode in the cards, in conjunction with five kinds of modes in the cards of the first mode to the in the cards of second aspect or second aspect, after refusal is processed CS territory business or accepting after this CS territory business, described method also comprises:
If described subscriber equipment is stationed duration at 2G or 3G network and is greater than or equal to default duration threshold value, judge the type of described subscriber equipment;
If it is preferential that described subscriber equipment is that voice class equipment or user preference are set to voice, continue to quarter at 2G or 3G network;
If described subscriber equipment is data class equipment or user preference, be set to high priority data, return to Long Term Evolution LTE network.
The third aspect, provides a kind of mobile management entity, comprising:
Transmitting element, after the registration or position renewal in circuit switching (CS) territory at completing user equipment, to subscriber equipment, send and to adhere to that message is accepted in request or position updating request is accepted message, so as described subscriber equipment according to described in adhere to that message is accepted in request or position updating request is accepted the list of message acquisition cuicuit domain dropping public land mobile network.
In the first mode in the cards, in conjunction with the third aspect, the list of described circuit domain dropping public land mobile network is:
Circuit domain dropping public land mobile network allows list, and described circuit domain dropping public land mobile network allows list to comprise the sign of available public land mobile network; Or
Circuit domain dropping public land mobile network banned list, described circuit domain dropping public land mobile network banned list comprises the sign of the public land mobile network of forbidding.
Fourth aspect, provides a kind of subscriber equipment, comprising:
Receiving element, for adhering to from mobile management entity reception, message is accepted in request or position updating request is accepted message, and adhere to request and accept message or position updating request is accepted the list of message acquisition cuicuit domain dropping public land mobile network according to described, and the list of described circuit domain dropping public land mobile network is sent to network selected cell;
Network selected cell, for receiving the list of described circuit domain dropping public land mobile network from receiving element, according to described circuit domain dropping public land mobile network, to select 2G or 3G network that available public land mobile network is corresponding be user terminal processes CS territory business in list.
In the first mode in the cards, in conjunction with fourth aspect, described list acquiring unit specifically for:
If described in adhere to request and accept message or position updating request and accept message and comprise the list of described circuit domain dropping public land mobile network, directly from described, adhere to request and accept message or position updating request and accept to obtain message the list of described circuit domain dropping public land mobile network;
If described in adhere to request and accept message or position updating request and accept message and comprise the position field sign in CS territory and the Location Area Identification in PS territory, do not comprise the list of described circuit domain dropping public land mobile network, according to the position field sign in described CS territory and the Location Area Identification in PS territory, generate or the described circuit domain dropping public land mobile network list of deriving.
In the second mode in the cards, in conjunction with the first mode in the cards of fourth aspect or fourth aspect, the list of described circuit domain dropping public land mobile network is:
Circuit domain dropping public land mobile network allows list, and described circuit domain dropping public land mobile network allows list to comprise the sign of available public land mobile network; Or
Circuit domain dropping public land mobile network banned list, described circuit domain dropping public land mobile network banned list comprises the sign of the public land mobile network of forbidding.
In the third mode in the cards, in conjunction with the first mode in the cards of fourth aspect or fourth aspect or the second mode in the cards of fourth aspect, described network selected cell specifically for:
If the list of described circuit domain dropping public land mobile network is circuit domain dropping public land mobile network, allow list, in the list of described circuit domain dropping public land mobile network, select an available public land mobile network;
If the list of described circuit domain dropping public land mobile network is circuit domain dropping public land mobile network banned list, in the public land mobile network all public land mobile networks except the list of described circuit domain dropping public land mobile network, select an available public land mobile network.
In the 4th kind of mode in the cards, in conjunction with the first mode in the cards of fourth aspect or fourth aspect to the third mode in the cards, described network selected cell specifically for:
Non-Access Stratum by described subscriber equipment is sent to the list of described circuit domain dropping public land mobile network the Access Layer of described subscriber equipment, so that the Access Layer of described subscriber equipment is selected an available public land mobile network according to described public land mobile network list, and be user terminal processes CS territory business according to sign selection 2G or the 3G network corresponding with the sign of described public land mobile network of described available public land mobile network.
In the 5th kind of mode in the cards, in conjunction with four kinds of modes in the cards of the first mode to the in the cards of fourth aspect or fourth aspect, described network selected cell also for:
If select less than available public land mobile network, refusal is processed CS territory business.
In the 6th kind of mode in the cards, in conjunction with five kinds of modes in the cards of the first mode to the in the cards of fourth aspect or fourth aspect, described subscriber equipment also comprises:
Timing unit, is greater than or equal to default duration threshold value if be stationed duration for described subscriber equipment at 2G or 3G network, judges the type of described subscriber equipment;
If it is preferential that described network selected cell is also for described subscriber equipment that voice class equipment or user preference are set to voice, continue to quarter at 2G or 3G network;
If described network selected cell is also that data class equipment or user preference are set to high priority data for described subscriber equipment, return to Long Term Evolution LTE network.
The 5th aspect, provides a kind of communication system, comprises mobile services switching centre or VLR Visitor Location Register, attribution assigned user server, also comprises:
Described mobile management entity;
Described subscriber equipment.
Embodiments of the invention provide a kind of system of selection of public land mobile network, equipment and system, by at completing user equipment after the registration in circuit switching (CS) territory, to subscriber equipment, send and to adhere to that message is accepted in request or position updating request is accepted message, according to adhere to request accept message or position updating request accept message can the list of acquisition cuicuit domain dropping public land mobile network, this circuit domain dropping public land mobile network list is that circuit domain dropping public land mobile network allows list or circuit domain dropping public land mobile network banned list, so that to select 2G or 3G network that available public land mobile network is corresponding be user terminal processes CS territory business in list according to circuit domain dropping public land mobile network, can make user in circuit domain dropping process, select accurately public land mobile network to provide circuit domain business for user, thereby for user provides charging accurately.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The system of selection flow chart of a kind of public land mobile network that Fig. 1 provides for the embodiment of the present invention;
The system of selection flow chart of the another kind of public land mobile network that Fig. 2 provides for the embodiment of the present invention;
The system of selection flow chart of a kind of public land mobile network that Fig. 3 provides for further embodiment of this invention;
Fig. 4 will complete in circuit switching (CS) territory the schematic flow sheet of registration for a kind of subscriber equipment that prior art provides;
The structural representation of a kind of mobile management entity that Fig. 5 provides for further embodiment of this invention;
A kind of user device architecture schematic diagram that Fig. 6 provides for further embodiment of this invention;
A kind of user device architecture schematic diagram that Fig. 7 provides for further embodiment of this invention;
A kind of communication system architecture schematic diagram that Fig. 8 provides for further embodiment of this invention;
A kind of mobile management entity structural representation that Fig. 9 provides for another embodiment of the present invention;
A kind of user device architecture schematic diagram that Figure 10 provides for another embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
It should be noted that: PLMN list of the present invention acts on CSFB current business, that is: when UE adheres in LTE territory, because CS business has caused CSFB, return back to circuit domain, this causes that the CS business of CSFB is exactly CSFB current business.UE determines whether to continue or finish CSFB current business according to PLMN list.After this service ending, UE initiates other CS business again, not affected by PLMN list.
Above-mentioned CSFB business is crossed and is comprised CSFB voice industry bar CSFB location (Location Control Service, LCS) business, CSFB call out irrelevant supplement (Call Independent Supplementary Service, CISS) business, CSFB short message service.Particularly point out, the CSFB of the present embodiment comprises LTE-> 2 or 3G CSFB and LTE-> 1xRTT (1x single carrier Radio Transmission Technology (Single-carrier Radio Transmission Technology)) CSFB.
The embodiment of the present invention provides a kind of system of selection of public land mobile network, based on mobile management entity side, as shown in Figure 1, comprising:
After S101, registration or position renewal at completing user equipment in circuit switching (CS) territory, mobile management entity sends and to adhere to that message is accepted in request or position updating request is accepted message to subscriber equipment, so that subscriber equipment is according to adhering to, message is accepted in request or position updating request is accepted the list of message acquisition cuicuit domain dropping public land mobile network, and making subscriber equipment according to the list of circuit domain dropping public land mobile network, select 2G or 3G network that public land mobile network is corresponding in circuit domain dropping process is that subscriber equipment is processed CS territory business.
Wherein, adhering to request accepts message or position updating request and accepts to comprise the list of circuit domain dropping public land mobile network, can also be included in LAI (the Location Area Identification in the CS territory that designated parameter, subscriber equipment in TS23.401 is corresponding, position field sign), VLR TMSI (Visitor Location Register Temporary Mobile SubscriberIdentity, the interim identification code of visitor location register), PLMN list of equal value (equivalent PLMN list) etc.
According to the list of circuit domain dropping public land mobile network, selecting 2G or 3G network that public land mobile network is corresponding is that subscriber equipment processing CS territory business can be directly according to this circuit domain dropping public land mobile network list, to select corresponding 2G or the 3G network of public land mobile network, also can be that first according to adhering to, message is accepted in request or position updating request is accepted the lane place (LAI in message, location area ID) select 2G or 3G network, after choosing is less than suitable 2G or 3G network, according to the list of circuit domain dropping public land mobile network, select corresponding 2G or the 3G network of public land mobile network again.
The embodiment of the present invention provides the system of selection of another kind of public land mobile network, based on user equipment side, as shown in Figure 2, comprising:
S201, subscriber equipment receive and adhere to that message is accepted in request or position updating request is accepted message from mobile management entity, and message is accepted in request or position updating request is accepted the list of message acquisition cuicuit domain dropping public land mobile network according to adhering to.
S202, subscriber equipment according to circuit domain dropping public land mobile network list to select 2G or 3G network that available public land mobile network is corresponding be user terminal processes CS territory business.
Alternatively, adhere to request and accept message or position updating request and accept message and also can comprise a default duration threshold value, if if select less than available public land mobile network for subscriber equipment, when refusal is processed CS territory business:
UE is greater than or equal to default duration threshold value, the type of judgement subscriber equipment according to be stationed duration at 2G or 3G network;
If it is preferential that subscriber equipment is that voice class equipment or user preference are set to voice, UE continues to quarter at 2G or 3G network;
If subscriber equipment is data class equipment or user preference, be set to high priority data, UE returns to Long Term Evolution LTE network.
Embodiments of the invention provide a kind of system of selection of public land mobile network, after the registration or position renewal in circuit switching (CS) territory at completing user equipment, to subscriber equipment, send and to adhere to that message is accepted in request or position updating request is accepted message, according to adhere to request accept message or position updating request accept message can the list of acquisition cuicuit domain dropping public land mobile network, this circuit domain dropping public land mobile network list is that circuit domain dropping public land mobile network allows list or circuit domain dropping public land mobile network banned list, so that to select 2G or 3G network that available public land mobile network is corresponding be user terminal processes CS territory business in list according to circuit domain dropping public land mobile network, can make user in circuit domain dropping process, select accurately public land mobile network to provide circuit domain business for user, thereby for user provides charging accurately.
Another embodiment of the present invention provides a kind of system of selection of public land mobile network, as shown in Figure 3, comprising:
After S301, registration or position renewal at completing user equipment in circuit switching (CS) territory, mobile management entity sends and to adhere to that message is accepted in request or position updating request is accepted message to subscriber equipment, so that subscriber equipment is according to adhering to, message is accepted in request or position updating request is accepted the list of message acquisition cuicuit domain dropping public land mobile network.
Wherein, subscriber equipment first will complete in circuit switching (CS) territory registration or position is upgraded, as shown in Figure 4, in circuit switching (CS) territory, completing registration is to have CSFB (CS Fallback by startup, circuit domain dropping) attachment flow of the subscriber equipment of function is more newly arrived and is realized based on associating EPS or IMSI (Evolved Packet System or International Mobile SubscriberIdentification Number, evolved packet system or international mobile subscriber identity) attachment flow or co-location:
UE (User Equipment, subscriber equipment) initiate more new technological process of network attachment flow process or co-location, to MME (Mobility Management Entity, mobile management entity) send Attach Request message or co-location update request, wherein adhering to type of attachment in message or co-location update request, to indicate this be more new technological process of the EPS of an associating or IMSI attachment flow or co-location, and indicate UE to possess the ability of CSFB;
MME learns that from type of attachment this is more new technological process of the EPS of an associating or IMSI attachment flow or co-location, the LAI that MME derives an acquiescence according to the current LTE lane place of UE, according to the IMSI hash function of LAI and TS23.236 definition, derive VLRnumber again, when MME is receiving (the Home Subscriber Service from HS S, attribution assigned user server), after insertion subscriber data message, MME starts to send location update request message to selected MSC or VLR;
MME sends location update request message to MSC or VLR, and wherein location update request message comprises the IP address of LAI, IMSI, MME, position updating type;
The IP address of VLR store M ME, and establishment is associated with the SGs between MME;
VLR carries out the renewal of position, CS territory and home position update request is accepted message to MME;
After completing above flow process, mean that subscriber equipment will complete registration in circuit switching (CS) territory, MME just can send and adhere to request and accept message or co-location update request is accepted message to UE, now just show that combining of this user adheres to or co-location has been upgraded success, this user just can process CS territory business in LTE network.Adhering to request accepts message or co-location update request and accepts message and comprise the position field sign LAI (Location Area Indicator) in CS territory and the lane place sign (TAI or TAI list) in PS territory.
S302, subscriber equipment receive and adhere to that message is accepted in request or position updating request is accepted message from mobile management entity, and message is accepted in request or position updating request is accepted the list of message acquisition cuicuit domain dropping public land mobile network according to adhering to.
Alternatively, accept message or position updating request and accept message and can not comprise the list of circuit domain dropping public land mobile network, concrete:
If adhere to request, accept message or position updating request and accept message and comprise the list of circuit domain dropping public land mobile network, directly from adhering to, message is accepted in request or position updating request is accepted acquisition cuicuit domain dropping public land mobile network list message;
If adhering to request accepts message or position updating request and accepts message and comprise the position field sign in CS territory and the Location Area Identification in PS territory, do not comprise the list of circuit domain dropping public land mobile network, according to the position field sign in CS territory and the Location Area Identification in PS territory, generate or the list of derivation circuit domain dropping public land mobile network
If the list of S303 public land mobile network is public land mobile network, allow list, subscriber equipment is selected an available public land mobile network in the list of circuit domain dropping public land mobile network.
Exemplary, in the situation that non-network is shared, suppose that the A of operator has the PLMN 1 that LTE network is corresponding (Public Land Mobile Network, public land mobile network) and 2G or PLMN 2 corresponding to 3G network, in associating attaching process, PLMN 2 registrations that the 2G of the A of UE operator or 3G network are corresponding.When UE initiation CSFB business falls back to 2G or 3G network, UE can preferential select the 2G of the A of operator or PLMN 2 corresponding to 3G network to process CS business for user, but UE may select less than the 2G of the A of operator or PLMN 2 corresponding to 3G network, now, the circuit domain dropping public land mobile network that the Attach Request message that this UE just receives from MME comprises allows to select an available public land mobile network in list, finally by the A of operator, provide CS business for this UE, according to the agreement between the A of operator and this UE ownership place, collect the charges, and then be user's accurate billing.
If the list of S304 public land mobile network is public land mobile network banned list, in the public land mobile network of subscriber equipment outside all public land mobile networks of dividing circuit domain dropping public land mobile network list, select an available public land mobile network.
Exemplary, in the situation that network is shared, suppose that operator has PLMN1 and the B of operator that LTE network is corresponding and has 2G or PLMN2 corresponding to 3G network, between the A of operator and the B of operator, there is cooperation agreement.In associating attaching process, the PLMN2 registration that the PLMN1 that the LTE network of the A of UE operator is corresponding and the 2G of the B of operator or 3G network are corresponding, when UE initiation CSFB business falls back to 2G or 3G network, this UE can preferentially select 2G or PLMN2 corresponding to 3G network of the B of operator, but UE may select less than the 2G of the B of operator or PLMN2 corresponding to 3G network, this UE may select other available CS networks, now, in the circuit domain dropping public land mobile network banned list that the Attach Request message that this UE can receive from MME comprises, select an available public land mobile network, be to select an available public land mobile network in the public land mobile network outside all public land mobile networks of dividing circuit domain dropping public land mobile network banned list, like this, this UE just can not choose other available CS networks, and then produce charging accurately for user.
Further, subscriber equipment according to circuit domain dropping public land mobile network list select 2G or 3G network that available public land mobile network is corresponding specifically to realize in the following manner:
The Non-Access Stratum of subscriber equipment is sent to the list of circuit domain dropping public land mobile network the Access Layer of subscriber equipment, so that the Access Layer of subscriber equipment is selected an available public land mobile network according to public land mobile network list, and be user terminal processes CS territory business according to sign selection 2G or the 3G network corresponding with the sign of public land mobile network of available public land mobile network.
In addition, according to the list of circuit domain dropping public land mobile network, selecting 2G or 3G network that public land mobile network is corresponding is that subscriber equipment processing CS territory business can be directly according to this circuit domain dropping public land mobile network list, to select corresponding 2G or the 3G network of public land mobile network, also can be that first according to adhering to, message is accepted in request or position updating request is accepted the lane place (LAI in message, location area ID) select 2G or 3G network, after choosing is less than suitable 2G or 3G network, according to the list of circuit domain dropping public land mobile network, select corresponding 2G or the 3G network of public land mobile network again.
S305, subscriber equipment judge whether to choose 2G or the 3G network that available public land mobile network is corresponding; 2G or 3G network that if chosen, available public land mobile network is corresponding are carried out S306, if select less than, carry out S307.
S306, subscriber equipment are user terminal processes CS territory business according to corresponding 2G or the 3G network of available public land mobile network of choosing.
Wherein, CS territory business includes, but are not limited to CSFB speech business, CSFB LCS (CSFB Location Control Service, CSFB location) business, CSFB CISS (CSFB Call Independent Supplementary Service, CSFB calls out irrelevant supplementing) business and CSFB short message service etc.
S307, subscriber equipment refusal are processed CS territory business.
Alternatively, adhere to request and accept message or position updating request and accept message and also can comprise a default duration threshold value, subscriber equipment accept or refusal current C S business after can start timer and judge:
If S308 subscriber equipment is stationed duration at 2G or 3G network and is greater than or equal to default duration threshold value, judge the type of subscriber equipment.
Exemplary, UE quarters at 2G or 3G network, starts timer, suppose that presetting duration threshold value is 30 seconds, and when UE is stationed duration while being greater than 30 seconds at 2G or 3G network, UE can determine whether quartering at 2G or 3G network according to the type of himself.
If it is preferential that S309 subscriber equipment is that voice class equipment or user preference are set to voice, continue to quarter at 2G or 3G network.
If S310 subscriber equipment is data class equipment or user preference, be set to high priority data, return to Long Term Evolution LTE network.
Embodiments of the invention provide a kind of system of selection of public land mobile network, after the registration or position renewal in circuit switching (CS) territory at completing user equipment, to subscriber equipment, send and to adhere to that message is accepted in request or position updating request is accepted message, according to adhere to request accept message or position updating request accept message can the list of acquisition cuicuit domain dropping public land mobile network, this circuit domain dropping public land mobile network list is that circuit domain dropping public land mobile network allows list or circuit domain dropping public land mobile network banned list, so that to select 2G or 3G network that available public land mobile network is corresponding be user terminal processes CS territory business in list according to circuit domain dropping public land mobile network, can make user in circuit domain dropping process, select accurately public land mobile network to provide circuit domain business for user, thereby for user provides charging accurately.
Further embodiment of this invention provides a kind of mobile management entity 01, as shown in Figure 5, can comprise:
Transmitting element 011, after the registration or position renewal in circuit switching (CS) territory at completing user equipment, to subscriber equipment, send and to adhere to that message is accepted in request or position updating request is accepted message, so that subscriber equipment is according to adhering to, message is accepted in request or position updating request is accepted the list of message acquisition cuicuit domain dropping public land mobile network, and making subscriber equipment according to the list of circuit domain dropping public land mobile network, select 2G or 3G network that public land mobile network is corresponding in circuit domain dropping process is that subscriber equipment is processed CS territory business.
Further, the list of circuit domain dropping public land mobile network can be:
Circuit domain dropping public land mobile network allows list, and circuit domain dropping public land mobile network allows list to comprise the sign of available public land mobile network; Or
Circuit domain dropping public land mobile network banned list, circuit domain dropping public land mobile network banned list comprises the sign of the public land mobile network of forbidding.
Embodiments of the invention provide a kind of mobile management entity, after the registration or position renewal in circuit switching (CS) territory at completing user equipment, to subscriber equipment, send and to adhere to that message is accepted in request or position updating request is accepted message, according to adhere to request accept message or position updating request accept message can the list of acquisition cuicuit domain dropping public land mobile network, this circuit domain dropping public land mobile network list is that circuit domain dropping public land mobile network allows list or circuit domain dropping public land mobile network banned list, so that to select 2G or 3G network that available public land mobile network is corresponding be user terminal processes CS territory business in list according to circuit domain dropping public land mobile network, can make user in circuit domain dropping process, select accurately public land mobile network to provide circuit domain business for user, thereby for user provides charging accurately.
Further embodiment of this invention provides a kind of subscriber equipment 02, as shown in Figure 6, comprising:
Network selected cell 022, for from receiving element 021 receiving circuit domain dropping public land mobile network list, according to circuit domain dropping public land mobile network, to select 2G or 3G network that available public land mobile network is corresponding be user terminal processes CS territory business in list.
Further, list acquiring unit 021 can be specifically for:
If adhere to request, accept message or position updating request and accept message and comprise the list of circuit domain dropping public land mobile network, directly from adhering to, message is accepted in request or position updating request is accepted acquisition cuicuit domain dropping public land mobile network list message;
If adhering to request accepts message or position updating request and accepts message and comprise the position field sign in CS territory and the Location Area Identification in PS territory, do not comprise the list of circuit domain dropping public land mobile network, according to the position field sign in CS territory and the Location Area Identification in PS territory, generate or the list of derivation circuit domain dropping public land mobile network.
Further, the list of circuit domain dropping public land mobile network can be:
Circuit domain dropping public land mobile network allows list, and circuit domain dropping public land mobile network allows list to comprise the sign of available public land mobile network; Or
Circuit domain dropping public land mobile network banned list, circuit domain dropping public land mobile network banned list comprises the sign of the public land mobile network of forbidding.
Further, network selected cell 022 can be specifically for:
If the list of circuit domain dropping public land mobile network is circuit domain dropping public land mobile network, allow list, in the list of circuit domain dropping public land mobile network, select an available public land mobile network;
If the list of circuit domain dropping public land mobile network is circuit domain dropping public land mobile network banned list, in the public land mobile network outside all public land mobile networks of dividing circuit domain dropping public land mobile network list, select an available public land mobile network.
Further, network selected cell 022 can also be specifically for:
Non-Access Stratum by subscriber equipment is sent to the list of circuit domain dropping public land mobile network the Access Layer of subscriber equipment, so that the Access Layer of subscriber equipment is selected an available public land mobile network according to public land mobile network list, and be user terminal processes CS territory business according to sign selection 2G or the 3G network corresponding with the sign of public land mobile network of available public land mobile network.
Further, network selected cell 022 can also be for:
If select less than available public land mobile network, refusal is processed CS territory business.
Further, as shown in Figure 7, subscriber equipment 02 can also comprise:
If network selected cell 022 can also be preferential for voice class equipment or user preference are set to voice for subscriber equipment 02, continue to quarter at 2 or 3G network.
If network selected cell 022 can also, for subscriber equipment 02 for data class equipment or user preference are set to high priority data, return to Long Term Evolution LTE network.
Embodiments of the invention provide a kind of subscriber equipment, after the registration or position renewal in circuit switching (CS) territory at completing user equipment, to subscriber equipment, send and to adhere to that message is accepted in request or position updating request is accepted message, according to adhere to request accept message or position updating request accept message can the list of acquisition cuicuit domain dropping public land mobile network, this circuit domain dropping public land mobile network list is that circuit domain dropping public land mobile network allows list or circuit domain dropping public land mobile network banned list, so that to select 2G or 3G network that available public land mobile network is corresponding be user terminal processes CS territory business in list according to circuit domain dropping public land mobile network, can make user in circuit domain dropping process, select accurately public land mobile network to provide circuit domain business for user, thereby for user provides charging accurately.
Further embodiment of this invention provides a kind of communication system 1, comprises mobile services switching centre or VLR Visitor Location Register 03, attribution assigned user server 04, as shown in Figure 8, also comprises: the mobile management entity 01 that previous embodiment provides, subscriber equipment 02.
The embodiment of the present invention provides a kind of communication system, after the registration or position renewal in circuit switching (CS) territory at completing user equipment, to subscriber equipment, send and to adhere to that message is accepted in request or position updating request is accepted message, according to adhere to request accept message or position updating request accept message can the list of acquisition cuicuit domain dropping public land mobile network, this circuit domain dropping public land mobile network list is that circuit domain dropping public land mobile network allows list or circuit domain dropping public land mobile network banned list, so that to select 2G or 3G network that available public land mobile network is corresponding be user terminal processes CS territory business in list according to circuit domain dropping public land mobile network, can make user in circuit domain dropping process, select accurately public land mobile network to provide circuit domain business for user, thereby for user provides charging accurately.。
Another embodiment of the present invention provides a kind of mobile management entity 03, as shown in Figure 9, comprises the first receiver 032, first memory 033, first processor 034, also comprises:
The first transmitter 031, after the registration or position renewal in circuit switching (CS) territory at completing user equipment 02, to subscriber equipment, send and to adhere to that message is accepted in request or position updating request is accepted message, so that subscriber equipment is according to adhering to, message is accepted in request or position updating request is accepted the list of message acquisition cuicuit domain dropping public land mobile network, and making subscriber equipment according to the list of circuit domain dropping public land mobile network, select 2G or 3G network that public land mobile network is corresponding in circuit domain dropping process is that subscriber equipment is processed CS territory business.
Further, the circuit domain dropping public land mobile network list in the first transmitter 031 can be:
Circuit domain dropping public land mobile network allows list, and circuit domain dropping public land mobile network allows list to comprise the sign of available public land mobile network; Or
Circuit domain dropping public land mobile network banned list, circuit domain dropping public land mobile network banned list comprises the sign of the public land mobile network of forbidding.
Embodiments of the invention provide a kind of mobile management entity, after the registration or position renewal in circuit switching (CS) territory at completing user equipment, to subscriber equipment, send and to adhere to that message is accepted in request or position updating request is accepted message, according to adhere to request accept message or position updating request accept message can the list of acquisition cuicuit domain dropping public land mobile network, this circuit domain dropping public land mobile network list is that circuit domain dropping public land mobile network allows list or circuit domain dropping public land mobile network banned list, so that to select 2G or 3G network that available public land mobile network is corresponding be user terminal processes CS territory business in list according to circuit domain dropping public land mobile network, can make user in circuit domain dropping process, select accurately public land mobile network to provide circuit domain business for user, thereby for user provides charging accurately.
Another embodiment of the present invention provides a kind of subscriber equipment 04, as shown in figure 10, comprises second memory 043 and the second transmitter 044, also comprises:
The second receiver 041, for adhering to from mobile management entity reception, message is accepted in request or position updating request is accepted message, and according to adhering to, message is accepted in request or position updating request is accepted the list of message acquisition cuicuit domain dropping public land mobile network, and the list of circuit domain dropping public land mobile network is sent to the second processor 042.
The second processor 042, for from the list of receiving element receiving circuit domain dropping public land mobile network, according to circuit domain dropping public land mobile network, to select 2G or 3G network that available public land mobile network is corresponding be user terminal processes CS territory business in list.
Further, the second processor 042 can be specifically for:
If adhere to request, accept message or position updating request and accept message and comprise the list of circuit domain dropping public land mobile network, directly from adhering to, message is accepted in request or position updating request is accepted acquisition cuicuit domain dropping public land mobile network list message;
If adhering to request accepts message or position updating request and accepts message and comprise the position field sign in CS territory and the Location Area Identification in PS territory, do not comprise the list of circuit domain dropping public land mobile network, according to the position field sign in CS territory and the Location Area Identification in PS territory, generate or the list of derivation circuit domain dropping public land mobile network.
Further, the circuit domain dropping public land mobile network list in the second receiver 041 can be:
Circuit domain dropping public land mobile network allows list, and circuit domain dropping public land mobile network allows list to comprise the sign of available public land mobile network; Or
Circuit domain dropping public land mobile network banned list, circuit domain dropping public land mobile network banned list comprises the sign of the public land mobile network of forbidding.
Further, the second processor 042 can be specifically for:
If the list of circuit domain dropping public land mobile network is circuit domain dropping public land mobile network, allow list, in the list of circuit domain dropping public land mobile network, select an available public land mobile network;
If the list of circuit domain dropping public land mobile network is circuit domain dropping public land mobile network banned list, in the public land mobile network outside all public land mobile networks of dividing circuit domain dropping public land mobile network list, select an available public land mobile network.
Further, the second processor 042 can also be specifically for:
Non-Access Stratum by subscriber equipment is sent to the list of circuit domain dropping public land mobile network the Access Layer of subscriber equipment, so that the Access Layer of subscriber equipment is selected an available public land mobile network according to public land mobile network list, and be user terminal processes CS territory business according to sign selection 2G or the 3G network corresponding with the sign of public land mobile network of available public land mobile network.
Further, subscriber equipment 04 can also be for:
If select less than available public land mobile network, refusal is processed CS territory business.
Further, subscriber equipment 04 can also comprise:
If subscriber equipment 2 or 3G network be stationed duration and be greater than or equal to default duration threshold value, judge the type of subscriber equipment;
If subscriber equipment is voice class equipment, continue to quarter at 2 or 3G network;
If subscriber equipment is data class equipment, return to Long Term Evolution LTE network.
Embodiments of the invention provide a kind of subscriber equipment, after the registration or position renewal in circuit switching (CS) territory at completing user equipment, to subscriber equipment, send and to adhere to that message is accepted in request or position updating request is accepted message, according to adhere to request accept message or position updating request accept message can the list of acquisition cuicuit domain dropping public land mobile network, this circuit domain dropping public land mobile network list is that circuit domain dropping public land mobile network allows list or circuit domain dropping public land mobile network banned list, so that to select 2G or 3G network that available public land mobile network is corresponding be user terminal processes CS territory business in list according to circuit domain dropping public land mobile network, can make user in circuit domain dropping process, select accurately public land mobile network to provide circuit domain business for user, thereby for user provides charging accurately.。
In the several embodiment that provide in the application, should be understood that, disclosed system, equipment and method, can realize by another way.For example, apparatus embodiments described above is only schematic, for example, the division of described unit, be only that a kind of logic function is divided, during actual realization, can have other dividing mode, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.
In addition, in equipment and system in each embodiment of the present invention, each functional unit can be integrated in a processing unit, can be also that the independent physics of unit comprises, also can be integrated in a unit two or more unit.And each above-mentioned unit both can adopt the form of hardware to realize, and the form that also can adopt hardware to add SFU software functional unit realizes.
The all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, and aforesaid program can be stored in a computer read/write memory medium, and this program, when carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (Read Only Memory, be called for short ROM), the various media that can be program code stored such as random access memory (Random Access Memory is called for short RAM), magnetic disc or CD.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (19)
1. a system of selection for public land mobile network, is characterized in that, comprising:
After registration or position renewal at completing user equipment in circuit switching (CS) territory, to subscriber equipment, send and to adhere to that message is accepted in request or position updating request is accepted message, so as described subscriber equipment according to described in adhere to that message is accepted in request or position updating request is accepted the list of message acquisition cuicuit domain dropping public land mobile network.
2. method according to claim 1, is characterized in that, the list of described circuit domain dropping public land mobile network is:
Circuit domain dropping public land mobile network allows list, and described circuit domain dropping public land mobile network allows list to comprise the sign of available public land mobile network; Or
Circuit domain dropping public land mobile network banned list, described circuit domain dropping public land mobile network banned list comprises the sign of the public land mobile network of forbidding.
3. a system of selection for public land mobile network, is characterized in that, comprising:
From mobile management entity, receive and to adhere to that message is accepted in request or position updating request is accepted message, and adhere to according to described that message is accepted in request or position updating request is accepted the list of message acquisition cuicuit domain dropping public land mobile network;
According to described circuit domain dropping public land mobile network, to select 2G or 3G network that available public land mobile network is corresponding be user terminal processes CS territory business in list.
4. method according to claim 3, is characterized in that, adheres to request described in described basis and accepts message or position updating request and accept the list of message acquisition cuicuit domain dropping public land mobile network and comprise:
If described in adhere to request and accept message or position updating request and accept message and comprise the list of described circuit domain dropping public land mobile network, directly from described, adhere to request and accept message or position updating request and accept to obtain message the list of described circuit domain dropping public land mobile network;
If described in adhere to request and accept message or position updating request and accept message and comprise the position field sign in CS territory and the Location Area Identification in PS territory, do not comprise the list of described circuit domain dropping public land mobile network, according to the position field sign in described CS territory and the Location Area Identification in PS territory, generate or the described circuit domain dropping public land mobile network list of deriving.
5. method according to claim 4, is characterized in that, the list of described circuit domain dropping public land mobile network is:
Circuit domain dropping public land mobile network allows list, and described circuit domain dropping public land mobile network allows list to comprise the sign of available public land mobile network; Or
Circuit domain dropping public land mobile network banned list, described circuit domain dropping public land mobile network banned list comprises the sign of the public land mobile network of forbidding.
6. according to the method described in claim 4 or 5, it is characterized in that, according to described circuit domain dropping public land mobile network, list selects available public land mobile network to comprise:
If the list of described circuit domain dropping public land mobile network is circuit domain dropping public land mobile network, allow list, in the list of described circuit domain dropping public land mobile network, select an available public land mobile network;
If the list of described circuit domain dropping public land mobile network is circuit domain dropping public land mobile network banned list, in the public land mobile network all public land mobile networks except the list of described circuit domain dropping public land mobile network, select an available public land mobile network.
7. according to the method described in claim 4 to 6 any one, it is characterized in that, according to described circuit domain dropping public land mobile network, to select 2G or 3G network that available public land mobile network is corresponding be that user terminal processes CS territory business comprises in list:
Non-Access Stratum by described subscriber equipment is sent to the list of described circuit domain dropping public land mobile network the Access Layer of described subscriber equipment, so that the Access Layer of described subscriber equipment is selected an available public land mobile network according to described public land mobile network list, and be user terminal processes CS territory business according to sign selection 2G or the 3G network corresponding with the sign of described public land mobile network of described available public land mobile network.
8. according to the method described in claim 4 to 7 any one, it is characterized in that, described method also comprises:
If select less than available public land mobile network, refusal is processed C S territory business.
9. method according to claim 8, is characterized in that, after refusal is processed CS territory business, described method also comprises:
If described subscriber equipment is stationed duration at 2G or 3G network and is greater than or equal to default duration threshold value, judge the type of described subscriber equipment;
If it is preferential that described subscriber equipment is that voice class equipment or user preference are set to voice, continue to quarter at 2G or 3G network;
If described subscriber equipment is data class equipment or user preference, be set to high priority data, return to Long Term Evolution LTE network.
10. a mobile management entity, is characterized in that, comprising:
Transmitting element, after the registration or position renewal in circuit switching (CS) territory at completing user equipment, to subscriber equipment, send and to adhere to that message is accepted in request or position updating request is accepted message, so as described subscriber equipment according to described in adhere to that message is accepted in request or position updating request is accepted the list of message acquisition cuicuit domain dropping public land mobile network.
11. mobile management entities according to claim 9, is characterized in that, the list of described circuit domain dropping public land mobile network is:
Circuit domain dropping public land mobile network allows list, and described circuit domain dropping public land mobile network allows list to comprise the sign of available public land mobile network; Or
Circuit domain dropping public land mobile network banned list, described circuit domain dropping public land mobile network banned list comprises the sign of the public land mobile network of forbidding.
12. 1 kinds of subscriber equipmenies, is characterized in that, comprising:
List acquiring unit, for adhering to from mobile management entity reception, message is accepted in request or position updating request is accepted message, and adhere to request and accept message or position updating request is accepted the list of message acquisition cuicuit domain dropping public land mobile network according to described, and the list of described circuit domain dropping public land mobile network is sent to network selected cell;
Network selected cell, for receiving the list of described circuit domain dropping public land mobile network from receiving element, according to described circuit domain dropping public land mobile network, to select 2G or 3G network that available public land mobile network is corresponding be user terminal processes CS territory business in list.
13. subscriber equipmenies according to claim 12, is characterized in that, described list acquiring unit specifically for:
If described in adhere to request and accept message or position updating request and accept message and comprise the list of described circuit domain dropping public land mobile network, directly from described, adhere to request and accept message or position updating request and accept to obtain message the list of described circuit domain dropping public land mobile network;
If described in adhere to request and accept message or position updating request and accept message and comprise the position field sign in CS territory and the Location Area Identification in PS territory, do not comprise the list of described circuit domain dropping public land mobile network, according to the position field sign in described CS territory and the Location Area Identification in PS territory, generate or the described circuit domain dropping public land mobile network list of deriving.
14. according to the subscriber equipment described in claim 12 or 13, it is characterized in that, the list of described circuit domain dropping public land mobile network is:
Circuit domain dropping public land mobile network allows list, and described circuit domain dropping public land mobile network allows list to comprise the sign of available public land mobile network; Or
Circuit domain dropping public land mobile network banned list, described circuit domain dropping public land mobile network banned list comprises the sign of the public land mobile network of forbidding.
15. according to claim 12 to the subscriber equipment described in 14 any one, it is characterized in that, described network selected cell specifically for:
If the list of described circuit domain dropping public land mobile network is circuit domain dropping public land mobile network, allow list, in the list of described circuit domain dropping public land mobile network, select an available public land mobile network;
If the list of described circuit domain dropping public land mobile network is circuit domain dropping public land mobile network banned list, in the public land mobile network all public land mobile networks except the list of described circuit domain dropping public land mobile network, select an available public land mobile network.
16. according to claim 12 to the subscriber equipment described in 15 any one, it is characterized in that, described network selected cell specifically for:
Non-Access Stratum by described subscriber equipment is sent to the list of described circuit domain dropping public land mobile network the Access Layer of described subscriber equipment, so that the Access Layer of described subscriber equipment is selected an available public land mobile network according to described public land mobile network list, and be user terminal processes CS territory business according to sign selection 2G or the 3G network corresponding with the sign of described public land mobile network of described available public land mobile network.
17. according to claim 12 to the subscriber equipment described in 16 any one, it is characterized in that, described network selected cell also for:
If select less than available public land mobile network, refusal is processed C S territory business.
18. subscriber equipmenies according to claim 17, is characterized in that, described subscriber equipment also comprises:
Timing unit, is greater than or equal to default duration threshold value if be stationed duration for described subscriber equipment at 2G or 3G network, judges the type of described subscriber equipment;
If it is preferential that described network selected cell is also for described subscriber equipment that voice class equipment or user preference are set to voice, continue to quarter at 2G or 3G network;
If described network selected cell is also that data class equipment or user preference are set to high priority data for described subscriber equipment, return to Long Term Evolution LTE network.
19. 1 kinds of communication systems, comprise mobile services switching centre or VLR Visitor Location Register, attribution assigned user server, it is characterized in that, also comprise:
Mobile management entity as described in claim 9 or 10;
Subscriber equipment as described in claim 11 to 16 any one.
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| CN201210376023.3A CN103716774B (en) | 2012-09-29 | 2012-09-29 | Public land mobile network selection method, equipment and system |
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| CN104869615A (en) * | 2015-04-30 | 2015-08-26 | 广东欧珀移动通信有限公司 | Network access method and mobile communication terminal |
| WO2015172289A1 (en) * | 2014-05-12 | 2015-11-19 | 华为技术有限公司 | Method for updating rplmn information, and user equipment |
| WO2016107072A1 (en) * | 2014-12-30 | 2016-07-07 | 中兴通讯股份有限公司 | Terminal and network selection method therefor |
| CN107613488A (en) * | 2017-11-07 | 2018-01-19 | 奇酷互联网络科技（深圳）有限公司 | Processing method, device and the mobile terminal of call exception |
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| CN111386731A (en) * | 2017-08-09 | 2020-07-07 | 联想（新加坡）私人有限公司 | Method and apparatus for discovery and access of restricted local services for unauthenticated UEs |
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| CA2765555C (en) * | 2009-06-16 | 2015-12-15 | Research In Motion Limited | Method for accessing a service unavailable through a network cell |
| CN102388651B (en) * | 2010-06-10 | 2013-12-18 | 华为技术有限公司 | Method, apparatus and system for selecting public land mobile network |
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| WO2018141155A1 (en) * | 2017-02-03 | 2018-08-09 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method for enabling terminal access to cell, terminal and computer storage medium |
| CN111386731A (en) * | 2017-08-09 | 2020-07-07 | 联想（新加坡）私人有限公司 | Method and apparatus for discovery and access of restricted local services for unauthenticated UEs |
| CN111386731B (en) * | 2017-08-09 | 2023-04-07 | 联想（新加坡）私人有限公司 | Method and apparatus for discovery and access of restricted local services for unauthenticated UEs |
| CN107613488A (en) * | 2017-11-07 | 2018-01-19 | 奇酷互联网络科技（深圳）有限公司 | Processing method, device and the mobile terminal of call exception |
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