CN105357672A - Pseudo base station identification method and user equipment - Google Patents
Pseudo base station identification method and user equipment Download PDFInfo
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- CN105357672A CN105357672A CN201510819756.3A CN201510819756A CN105357672A CN 105357672 A CN105357672 A CN 105357672A CN 201510819756 A CN201510819756 A CN 201510819756A CN 105357672 A CN105357672 A CN 105357672A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/12—Detection or prevention of fraud
Abstract
The invention discloses a pseudo base station identification method and user equipment and is used for providing a method for identifying a pseudo base station. The method comprises the following steps: the user equipment receives a broadcast message sent by a first cell; the user equipment analyzes the broadcast message to obtain characteristic parameters, wherein the characteristic parameters comprise at least one of control channel description parameters, cell selection parameters, cell identification, location area identification and system information 3 rest octet; the user equipment enables the characteristic parameters to match a characteristic database, wherein the characteristic database comprises a preset value range corresponding to the characteristic parameters; and if the characteristic parameters are within the preset value range, the user equipment determines a base station where the first cell locates to be the pseudo base station.
Description
Technical field
The present invention relates to the communications field, particularly the pseudo-base station identification approach of one and subscriber equipment.
Background technology
At present, particularly in the area that some business are comparatively bustling, the standing illegal base station be equipped with for issuing refuse messages, or be called pseudo-base station, these pseudo-base stations are generally by the base station of camouflage operator, and the phone number of false impersonation sends the rubbish short messages such as swindle, ad promotions to the mobile terminal device resided on pseudo-base station by force.
The resource that pseudo-base station generally all can not provide operator base station to provide, such as voice communication resource etc., mobile terminal device, once resident to pseudo-base station, there will be the situation cannot carrying out voice communication, causes inconvenience to the user.
But, there is no the method identifying pseudo-base station preferably at present.
Summary of the invention
The application provides a kind of pseudo-base station identification approach and subscriber equipment, for providing a kind of method identifying pseudo-base station.
First aspect, provides a kind of pseudo-base station identification approach, comprising:
Subscriber equipment receives the broadcast that the first community sends;
Described subscriber equipment resolves described broadcast to obtain characteristic parameter, and described characteristic parameter comprises at least one in control channel characterising parameter, cell selection parameters, cell ID, Location Area Identification and system information 3 in remainder bytes;
Described characteristic parameter mates with feature database by described subscriber equipment, and wherein, described feature database comprises the default span corresponding with described characteristic parameter;
If the value of described characteristic parameter is positioned at described default span, then the base station at described first place, community is defined as pseudo-base station by described subscriber equipment.
In the application, when subscriber equipment receives the broadcast of the first community transmission, subscriber equipment can extract the characteristic parameter carried in broadcast, if the value of the characteristic parameter extracted is positioned at the default span for this characteristic parameter sets, so just can determine that the base station at the first place, community is pseudo-base station, thus subscriber equipment is follow-up can determine that refusal resides in the first community and still continues to reside in the first community.That is, this application provides a kind of method making the pseudo-base station of subscriber equipment identification, subscriber equipment can be avoided resident to pseudo-base station, and improve the communication quality of subscriber equipment, the rubbish short message also avoiding pseudo-base station to send out causes interference even to damage to subscriber equipment as far as possible.Meanwhile, the method that the application provides, only need extract the characteristic parameter in broadcast, and determine the value of characteristic parameter, and the method comparison needed for subscriber equipment is simple, is convenient to promote the use of.
In conjunction with first aspect, in the first possible implementation of first aspect, described default span is that normal span corresponding with described characteristic parameter in normal base station sets, and/or described default span is set according to conventional span corresponding with described characteristic parameter in pseudo-base station.
The span of the described characteristic parameter of the base station provided according to operator and/or set the default span of characteristic parameter according to the span of the described characteristic parameter of pseudo-base station, ensures that more adequately can identify which base station by the value of comparison characteristic parameter may be pseudo-base station as far as possible.
In conjunction with the first possible implementation of first aspect or first aspect, in the implementation that the second of first aspect is possible,
Subscriber equipment receives the broadcast that the first community sends, and comprising:
Described subscriber equipment, when carrying out cell reselection, receives described broadcast;
After the base station at described first place, community is defined as pseudo-base station by described subscriber equipment, also comprise:
Described subscriber equipment refusal resides in described first community.
If the broadcast that the first community that subscriber equipment is the reception when carrying out cell reselection sends, so, if the base station at the first place, community is defined as pseudo-base station by subscriber equipment, then resident first community directly can be refused.Because if be cell reselection, show that former Serving cell is also available, in this case, even if subscriber equipment does not reside in the first community, also can not lose the service that community provides, therefore, the community that not resident pseudo-base station of can trying one's best provides.
In conjunction with the first possible implementation of first aspect or first aspect, in the third possible implementation of first aspect,
Subscriber equipment receives the broadcast that the first community sends, and comprising:
Described subscriber equipment, when changing persistent district, receives described broadcast;
After the base station at described first place, community is defined as pseudo-base station by described subscriber equipment, also comprise:
Described subscriber equipment refusal resides in described first community.
If subscriber equipment is the broadcast that the first community received when changing persistent district sends, so, if the base station at the first place, community is defined as pseudo-base station by subscriber equipment, then resident first community directly can be refused.Because if be cell reselection, show that former Serving cell is also available, in this case, even if subscriber equipment does not reside in the first community, also can not lose the service that community provides, therefore, the community that not resident pseudo-base station of can trying one's best provides.
In conjunction with the first possible implementation of first aspect or first aspect, in the 4th kind of possible implementation of first aspect,
Subscriber equipment receives the broadcast that the first community sends, and comprising:
Described subscriber equipment, when carrying out redirecting cell, receives described broadcast;
After the base station at described first place, community is defined as pseudo-base station by described subscriber equipment, also comprise:
If described subscriber equipment does not search non-pseudo-base station, then described subscriber equipment is selected to reside in described first community.
If the broadcast that the first community that subscriber equipment is the reception when carrying out redirecting cell sends, so, if the base station at the first place, community is defined as pseudo-base station by subscriber equipment, then subscriber equipment from be redirected target cell list in select can not select to reside in the first community during community, that is, subscriber equipment from be redirected target cell list in select the community can not selecting to reside in satisfied pseudo-base station feature during community.Such as, but if subscriber equipment does not search the community not meeting pseudo-base station feature, namely do not search the community that non-pseudo-base station provides, then still can select the community residing in satisfied pseudo-base station feature, be the first community.Because, if subscriber equipment is carrying out redirecting cell, so can show that former Serving cell is unavailable, therefore, if subscriber equipment search is less than non-pseudo-base station, namely the broadcast that the community not receiving non-pseudo-base station sends, service subscriber equipment can being avoided to can not get any base station provide.
In conjunction with the first possible implementation of first aspect or first aspect, in the 5th kind of possible implementation of first aspect,
Subscriber equipment receives the broadcast that the first community sends, and comprising:
Described subscriber equipment during Cell searching, receives described broadcast before carrying out service area;
After the base station at described first place, community is defined as pseudo-base station by described subscriber equipment, also comprise:
If described subscriber equipment does not search non-pseudo-base station, then described subscriber equipment is selected to reside in described first community.
If subscriber equipment is when departing from the coverage of former Serving cell, or signal strength signal intensity in former Serving cell very weak time the first community of receiving broadcast of sending, namely the broadcast that the first community received when subscriber equipment is Cell searching before carrying out service area sends, so, subscriber equipment generally can carry out the search of full frequency band when searching for new community, in this case, if the base station at the first place, community is defined as pseudo-base station by subscriber equipment, and subscriber equipment does not search the community not meeting pseudo-base station feature, namely the community that non-pseudo-base station provides is not searched, then still can select the community residing in satisfied pseudo-base station feature, it is such as the first community, service subscriber equipment can being avoided to can not get any base station provide.
In conjunction with the first possible implementation of first aspect or first aspect, in the 6th kind of possible implementation of first aspect,
Subscriber equipment receives the broadcast that the first community sends, and comprising:
Described first community, when full frequency band carries out Cell searching, receives described broadcast;
After the base station at described first place, community is defined as pseudo-base station by described subscriber equipment, also comprise:
If described subscriber equipment does not search non-pseudo-base station, then described subscriber equipment is selected to reside in described first community.
If subscriber equipment is all searched for less than non-pseudo-base station at full frequency band, namely the broadcast that the community not receiving non-pseudo-base station sends, if so or else subscriber equipment resides in the community of satisfied pseudo-base station feature, the service that cannot accept any base station may be caused, therefore, subscriber equipment still can be selected to reside in the first community, and this also can be avoided foregoing misjudgment phenomenon, the service simultaneously subscriber equipment can being avoided to can not get any base station providing.
In conjunction with the first possible implementation of first aspect or first aspect, in the 7th kind of possible implementation of first aspect,
Subscriber equipment receives the broadcast that the first community sends, and comprising:
Described subscriber equipment, when the frequency range of specifying carries out Cell searching, receives described broadcast;
After the base station at described first place, community is defined as pseudo-base station by described subscriber equipment, also comprise:
Described subscriber equipment refusal resides in described first community.
Such as when net Cell searching is searched in start, subscriber equipment may only be searched on band segment, some frequency ranges are also had not search for, and these frequency ranges may have non-pseudo-base station, and the object of the application is the community making terminal equipment not reside in pseudo-base station providing as far as possible, therefore in this case, subscriber equipment can refuse to reside in the first community, such as can continue to search in other frequency ranges, reside in the community that non-pseudo-base station provides as far as possible.
Second aspect, provides a kind of subscriber equipment, comprising:
Receiver, for receiving the broadcast that the first community sends;
Processor, for resolving described broadcast to obtain characteristic parameter, described characteristic parameter comprises at least one in control channel characterising parameter, cell selection parameters, cell ID, Location Area Identification and system information 3 in remainder bytes; Mated with feature database by described characteristic parameter, wherein, described feature database comprises the default span corresponding with described characteristic parameter; If the value of described characteristic parameter is positioned at described default span, then the base station at described first place, community is defined as pseudo-base station.
In conjunction with second aspect, in the first possible implementation of second aspect, described default span is that normal span corresponding with described characteristic parameter in normal base station sets, and/or described default span is set according to conventional span corresponding with described characteristic parameter in pseudo-base station.
In conjunction with the first possible implementation of second aspect or second aspect, in the implementation that the second of second aspect is possible,
When described receiver is specifically for carrying out cell reselection at described subscriber equipment, receive described broadcast;
Then described processor also for: after the base station at described first place, community is defined as pseudo-base station, refusal reside in described first community.
In conjunction with the first possible implementation of second aspect or second aspect, in the third possible implementation of second aspect,
When described receiver is specifically in described user equipment to change persistent district, receive described broadcast;
Then described processor also for: after the base station at described first place, community is defined as pseudo-base station, refusal reside in described first community.
In conjunction with the first possible implementation of second aspect or second aspect, in the 4th kind of possible implementation of second aspect,
When described receiver is specifically for carrying out redirecting cell at described subscriber equipment, receive described broadcast;
Then described processor also for: after the base station at described first place, community is defined as pseudo-base station, if do not search non-pseudo-base station, then select reside in described first community.
In conjunction with the first possible implementation of second aspect or second aspect, in the 5th kind of possible implementation of second aspect,
When described receiver is specifically for before carrying out service area at described subscriber equipment during Cell searching, receive described broadcast;
Then described processor also for: after the base station at described first place, community is defined as pseudo-base station, if do not search non-pseudo-base station, then select reside in described first community.
In conjunction with the first possible implementation of second aspect or second aspect, in the 6th kind of possible implementation of second aspect,
When described receiver is specifically for carrying out Cell searching at described subscriber equipment at full frequency band, receive described broadcast;
Then described processor also for: after the base station at described first place, community is defined as pseudo-base station, if do not search non-pseudo-base station, then select reside in described first community.
In conjunction with the first possible implementation of second aspect or second aspect, in the 7th kind of possible implementation of second aspect,
When described receiver is specifically for carrying out Cell searching at described subscriber equipment in the frequency range of specifying, receive described broadcast;
Then described processor also for: after the base station at described first place, community is defined as pseudo-base station, refusal reside in described first community.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in the embodiment of the present invention below, apparently, accompanying drawing introduced below is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is that terminal equipment is at the schematic diagram carrying out cell reselection;
Fig. 2 is the flow chart of pseudo-base station identification approach in the embodiment of the present invention;
Fig. 3 A-Fig. 3 B is the structural representation of subscriber equipment in the embodiment of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The techniques described herein may be used in various communication system, such as second generation mobile communication system (2G), 3-G (Generation Three mobile communication system) (3G) or next generation communication system, such as global system for mobile communications (GlobalSystemforMobilecommunications, GSM), code division multiple access (CodeDivisionMultipleAccess, CDMA) system, time division multiple access (TimeDivisionMultipleAccess, TDMA) system, Wideband Code Division Multiple Access (WCDMA) (WidebandCodeDivisionMultipleAccessWireless, WCDMA), frequency division multiple access (FrequencyDivisionMultipleAddressing, FDMA) system, OFDM (OrthogonalFrequency-DivisionMultipleAccess, OFDMA) system, single-carrier frequency division multiple access (SC-FDMA) system, GPRS (GeneralPacketRadioService, GPRS) system, Long Term Evolution (LongTermEvolution, LTE) system, and other these type of communication systems.
Below, the part term in the present invention is explained, so that those skilled in the art understand.
1) subscriber equipment (UserEquipment, UE), is point to the equipment that user provides voice and/or data connectivity, such as, can comprises the portable equipment with wireless connecting function or the treatment facility being connected to radio modem.This subscriber equipment can communicate with core net through resident's Access Network (ResidentialAccessNetwork, RAN), with RAN switched voice and/or data.This subscriber equipment can comprise wireless terminal device, mobile terminal device, subscri er unit (SubscriberUnit), subscriber station (SubscriberStation), mobile radio station (MobileStation), travelling carriage (Mobile), distant station (RemoteStation), access point (AccessPoint, AP), RTU (remote terminal unit) (RemoteTerminal), access terminal equipment (AccessTerminal), subscriber terminal equipment (UserTerminal), user agent (UserAgent), or subscriber's installation (UserDevice) etc.Such as, can be mobile phone (or being called " honeycomb " phone), there is the computer of mobile terminal device, portable, pocket, hand-hold type, built-in computer or vehicle-mounted mobile device.Such as, Personal Communications Services (PersonalCommunicationService, PCS) phone, cordless telephone, Session initiation Protocol (SessionInitiationProtocol, SIP) phone, wireless local loop (WirelessLocalLoop, WLL) stand, the equipment such as personal digital assistant (PersonalDigitalAssistant, PDA).
2) base station (such as, access point), specifically can to refer in Access Network the equipment by one or more sector and wireless terminal device devices communicating on aloft interface.Base station can be used for the air frame received and Internet protocol (IP) to divide into groups mutually to change, and as the router between wireless terminal device equipment and the remainder of Access Network, wherein the remainder of Access Network can comprise IP network.Base station also tunable to the attribute management of air interface.
3) pseudo-base station, i.e. false base station, equipment is generally made up of main frame and notebook computer, by relevant devices such as sending short messages in groups device, note senders, client identification module (the SubscriberIdentityModule within the scope of the certain radius of getting centered by pseudo-base station can be searched, SIM) card information, by the base station of the operator that disguises oneself as, the phone number of false impersonation sends the short messages such as swindle, ad promotions to the terminal equipment residing in this pseudo-base station by force, except interference user, also greatly loss common frequency spectrum resource.
Such as, in the embodiment of the present invention, pseudo-base station mainly disguises oneself as the base station of base station that operator provides.
4), in the embodiment of the present invention, " multiple " refer to two or more."and/or", describe the incidence relation of affiliated partner, can there are three kinds of relations in expression, such as, A and/or B, can represent: individualism A, exists A and B simultaneously, these three kinds of situations of individualism B.In addition, character "/", if no special instructions, general expression forward-backward correlation is to the relation liking a kind of "or".
First referring to Fig. 1, is a kind of possible application scenarios of the embodiment of the present invention.The bright environment of frame table peripheral in Fig. 1, such as this environment comprises non-pseudo-base station 1 and pseudo-base station 2, and such as subscriber equipment 1 has resided in pseudo-base station 2, and so subscriber equipment 1 just can only receive the rubbish short message of 1, pseudo-base station, and cannot communicate normally.The former Serving cell of subscriber equipment 2 is such as non-pseudo-base station 1, subscriber equipment 2 carries out cell reselection, and pseudo-base station 2 is optional base stations for subscriber equipment 2, if subscriber equipment 2 selects gravity treatment to arrive pseudo-base station 2, so subscriber equipment 2 also just can only receive the rubbish short message of 1, pseudo-base station, and cannot communicate normally.
For solving problems of the prior art, in the embodiment of the present invention, when subscriber equipment receives the broadcast of the first community transmission, the characteristic parameter carried in broadcast can be extracted, if the value of the characteristic parameter extracted is positioned at the default span for this characteristic parameter sets, so just can determine that the base station at the first place, community is pseudo-base station, thus subscriber equipment follow-up can determine refusal resident first community still continue resident first community.
The method that the embodiment of the present invention provides is introduced below in conjunction with accompanying drawing.
Refer to Fig. 2, the embodiment of the present invention provides a kind of pseudo-base station identification approach, and the flow process of the method is described below.
Step 201: subscriber equipment receives the broadcast that the first community sends;
Step 202: subscriber equipment resolves broadcast to obtain characteristic parameter, and characteristic parameter comprises at least one in control channel characterising parameter (ControlChannelDescription), cell selection parameters (CellSelectionParameters), cell ID (CellIdentity), Location Area Identification (LocationAreaIdentification) and system information 3 in remainder bytes (systeminformation3RestOctet);
Step 203: characteristic parameter mates with feature database by subscriber equipment, wherein, feature database comprises the default span corresponding with characteristic parameter;
Step 204: if the value of characteristic parameter is positioned at default span, then the base station at the first place, community is defined as pseudo-base station by subscriber equipment.
For a community, may be continue in transmission broadcast, broadcast may be used for subscriber equipment and finds community, and can by selecting to determine whether to access community.And subscriber equipment may be just receive broadcast when needed, may be such as periodic receipt, or may be receive again when carrying out Cell searching.Subscriber equipment may receive the broadcast that multiple community sends, and so this subscriber equipment therefrom can select the community that is applicable to, the such as good community of quality etc., thus resides in this community.Wherein, this broadcast that community sends, also can be called system message.
Such as, for GSM community, the control channel characterising parameter carried in broadcast can comprise Common Control Channel configuration parameter (CommonControlChannelconfiguration, CCCH-CONF) and access permit reserved block number parameter (BS-AG-BLKS-RES), certainly can also comprise the control channel characterising parameter that other are possible.
Such as, for GSM community, the cell selection parameters carried in broadcast can comprise the minimum levels value parameter (RXLEV-ACCESS-MIN) and community selection offset parameter (CELL_RESELECT_OFFSET) that allow access, certainly can also comprise other possible cell selection parameters.
So in gsm, no matter be the base station that operator provides, or pseudo-base station, these parameters can be comprised in the broadcast of transmission.
For in the broadcast that the community in other communication systems sends, comprise which concrete characteristic parameter in control channel characterising parameter, cell selection parameters, cell ID, Location Area Identification and system information 3 each category feature parameter in remainder bytes, those skilled in the art naturally know and can determine according to actual conditions actually.In addition; community no matter in which kind of communication system; in the broadcast sent, the characteristic parameter that carries may be not limited to this several characteristic parameter cited by the embodiment of the present invention, and those skilled in the art know other possible characteristic parameters of carrying in broadcast naturally also all within protection scope of the present invention.
In the embodiment of the present invention, corresponding default span can be set respectively for different characteristic parameters, can the default span of characteristic parameter and correspondence thereof be stored in feature database, such as this feature database can be stored in a user device, so subscriber equipment is after extraction characteristic parameter, just the value of the characteristic parameter of extraction can be mated with feature database, determine whether the value of characteristic parameter is positioned at the default span for characteristic parameter setting.Certainly, according to the difference of characteristic parameter, the default span of setting also can be different, and in addition, the characteristic parameter in feature database can comprise one or more combination, does not limit here.
Optionally, the default span of characteristic parameter, can be set according to the normal span corresponding with this characteristic parameter in normal base station (such as comprising the base station that operator provides), and/or, also can be set according to conventional span corresponding with this characteristic parameter in pseudo-base station.Wherein, normal span corresponding with this characteristic parameter in normal base station, it can be the span of the characteristic parameter in the broadcast that sends of normal Base Station that operator provides, such as: the span of the characteristic parameter a of the normal Base Station that operator provides is 8≤a≤10, then the default value in feature database can be set to [0,8), if the value of the characteristic parameter b obtained is 7, namely characteristic parameter b drops on default scope [0,8) within, then can think that the base station at the place, community that characteristic parameter b is corresponding is pseudo-base station; Conventional span corresponding with this characteristic parameter in pseudo-base station, it can be the span of the characteristic parameter in the broadcast of pseudo-base station transmission, such as, can add up the characteristic parameter of the pseudo-base station found, according to the span that statistics setting is preset, such as: the statistics of 4 pseudo-base station characteristic parameter c is separately: 4,3,5,3, then default span can be set as [3,5], everyly falling within this preset range, is all pseudo-base station; Certainly, the span of the characteristic parameter of the statistics of the characteristic parameter of pseudo-base station and normal Base Station can also be combined, the span that setting is preset, no longer describe in detail here; It will be appreciated by those skilled in the art that above-mentioned example is the principle that span setting is preset in exemplary explanation, due to the difference of characteristic parameter type, also there is difference in concrete value, and the present embodiment does not do concrete restriction.
Such as, if set the default span of characteristic parameter according to normal span corresponding with this characteristic parameter in normal base station, so default span can be set to, outside normal span corresponding with this characteristic parameter in normal base station, so just may be used for identifying pseudo-base station.Such as, the normal span of characteristic parameter 1 is A, so the span of this characteristic parameter 1 can be set to B in the embodiment of the present invention, B and A can be non-intersect, like this, after reception broadcast, if the value of the characteristic parameter carried in broadcast 1 is arranged in B, just can think that the base station at the place, community sending this broadcast is pseudo-base station.
Or such as, if set the default span of characteristic parameter according to conventional span corresponding with this characteristic parameter in pseudo-base station, so default span can be set to identical with conventional span corresponding with this characteristic parameter in pseudo-base station, so just may be used for identifying pseudo-base station.Such as, the improper span of characteristic parameter 1 is C, so the default span of this characteristic parameter 1 also can be set to C in the embodiment of the present invention, like this, after reception broadcast, if the value of the characteristic parameter carried in broadcast 1 is arranged in C, just can think that the base station at the place, community sending this broadcast is pseudo-base station.
Below for several characteristic parameters that may carry in the broadcast of GSM community transmission, introduce the mode of the default span of setting characteristic parameter.
Such as, when configuring CCCH-CONF, being operator determines according to the traffic model of community, and the system design stage as a rule in base station has just determined the value of CCCH-CONF.In general, the quantity of the carrier frequency (TRX) of community be 1 or 2 time, the value of CCCH-CONF can be set to 001, the quantity of the carrier frequency of community be 3 or 4 time, the value of CCCH-CONF can be set to 000.And CCCH and Separate Dedicated Control Channel (Stand-AloneDedicatedControlChannel, SDCCH) be not as public.When the carrier frequency quantity of community is greater than 4, paging load is comparatively large, can use multiple CCCH, the value of CCCH-CONF can be set to 000.
In general, the base station that current operator provides will be more subscriber equipment service all as far as possible, and carrier frequency quantity is all many, therefore, seldom the value of CCCH-CONF can be set to 001, and generally all be set to 000, and the prerequisite done like this is the support needing more hardware device.And for pseudo-base station, be to use hardware device less, to save cost; as far as possible therefore in general the value of CCCH-CONF can be set to 001, therefore, in the embodiment of the present invention, the default span of CCCH-CONF can be set to be more than or equal to 1, in order to identify pseudo-base station.
Such as, in fact the CCCH of each community is made up of access grant channel (AccessGrantChannel, AGCH) and paging channel (PAGINGCHANNEL, PCH).For the configuration of different Common Control Channel, the CCCH channel massage block number comprised in each Broadcast Control Channel (BroadcastControlChannel, BCCH) multi-frame (containing 51 frames) is different.CCCH is that Access granted Channel AGCH and paging channel are public, and when having PCH message and AGCH message to send simultaneously, system preferentially can send PCH message.During in order to prevent PCH flow larger, blocking may appear in AGCH message, network provision in CCCH channel massage block number some to be reserved to AGCH special.BS-AG-BLKS-RES CCCH channel is the message blocks number of AGCH reservation for representing in each BCCH multi-frame.If it is too small that the value of BS-AG-BLKS-RES is arranged, the amount of paging is simultaneously very large, AGCH channel may be caused to cause AGCH to transship not, now, there will be the situation that subscriber equipment cannot access.In the broadcast that the base station that operator provides sends, under considering, the value of BS-AG-BLKS-RES is generally 1, and pseudo-base station is in order to make more subscriber equipment resident, generally the value of BS-AG-BLKS-RES can be set to 2.Therefore, in the embodiment of the present invention, the default span of BS-AG-BLKS-RES can be set to be greater than 1, or be more than or equal to 2, in order to identify pseudo-base station.
Such as, the minimum received signal level required when RXLEV-ACCESS-MIN may be used for representing travelling carriage (: mobilestation, MS) access base station subsystem (BaseStationSubsystem, BSS).From the situation of beating, the RXLEV-ACCESS-MIN in Domestic Carriers network is generally 8, or is other numerical value, but seldom can be set to 0.And pseudo-base station is accessed to make more subscriber equipment, nature can reduce access threshold, by every means so generally the value of RXLEV-ACCESS-MIN can be set to 0.In view of the value of RXLEV-ACCESS-MIN generally can be set to 8 by Domestic Carriers network, therefore in the embodiment of the present invention, the default span of RXLEV-ACCESS-MIN can be set to [0,8), to identify pseudo-base station.
Such as, CELL_RESELECT_OFFSET (can referred to as CRO) is the parameter generally can considered when carrying out cell reselection.Wherein, as Penalty time parameter (PENALTY_TIME, PT) when value is not equal to 31, C2=C1+CELL_RESELECT_OFFSET-TEMPORARY_OFFSET*H (PT-T), wherein, C1 is cell selection parameters, and C2 is cell reselection parameters, TEMPORARY_OFFSET is cell reselection temporary offset parameter, and T is the timing time of counter.Can see, if the value of CRO is too high, the C2 value of this community then can be caused bigger than normal, this community is so just made to be easy to the Target cell being called that subscriber equipment is selected when carrying out cell reselection, and subscriber equipment is once reside in such community, just be not easy the community of the non-pseudo-base station being switched to other again, because in general the C2 value of normal community does not all have so high.At present, the value of the CRO in Domestic Carriers network is generally 55 (when frequency is 900MHz) or 55-58 (when frequency is 1800MHz), therefore, in the embodiment of the present invention, the default span of CRO can be set to be more than or equal to 60, to identify pseudo-base station.
More than just illustrate by the process that the default span of several characteristic parameter carries out setting, to introduce the process arranging the default span of characteristic parameter provided in the embodiment of the present invention, when characteristic parameter is different, the default span arranged may also can be different, if in the base station provided in operator in conjunction with specific features parameter set normal value and/or in pseudo-base station the general improper value arranged to set its span.
Optionally, if the broadcast that the first community that subscriber equipment is the reception when carrying out cell reselection sends, so, if the base station at the first place, community is defined as pseudo-base station by subscriber equipment, then resident first community can directly be refused.Because if be cell reselection, show that former Serving cell is also available, in this case, even if subscriber equipment does not reside in the first community, also can not lose the service that community provides, therefore, the community that not resident pseudo-base station of can trying one's best provides.
Wherein, cell reselection, such as can gravity treatment to GSM community, such as can from GSM cell reselection to GSM community, or can from WCDMA cell reselection to GSM community, or can from TD-SCDMA cell reselection to GSM community, or can from LTE cell reselection to GSM community, or such as also can gravity treatment to the community in other communication systems, such as, from GSM cell reselection to WCDMA community, or such as from WCDMA cell reselection to LTE community, etc.
Optionally, if subscriber equipment is the broadcast that the first community received when changing persistent district (CELLCHANGEORDER) sends, so, if the base station at the first place, community is defined as pseudo-base station by subscriber equipment, then resident first community can directly be refused.Because if be cell reselection, show that former Serving cell is also available, in this case, even if subscriber equipment does not reside in the first community, also can not lose the service that community provides, therefore, the community that not resident pseudo-base station of can trying one's best provides.
Wherein, CELLCHANGEORDER, such as can from GSM cell merge to GSM community, or can from WCDMA cell merge to GSM community, or can from TD-SCDMA cell merge to GSM community, or can from LTE cell merge to GSM community, or also can from GSM cell merge to the community other communication systems, or also can be the switching between the community in other communication systems, etc.
Optionally, if subscriber equipment is the broadcast that the first community received when carrying out redirecting cell (REDIR) sends, so, if the base station at the first place, community is defined as pseudo-base station by subscriber equipment, then subscriber equipment from be redirected target cell list in select can not select to reside in the first community during community, that is, subscriber equipment from be redirected target cell list in select the community can not selecting to reside in satisfied pseudo-base station feature during community.Such as, but if subscriber equipment does not search the community not meeting pseudo-base station feature, namely do not search the community that non-pseudo-base station provides, then still can select the community residing in satisfied pseudo-base station feature, be the first community.Because, if subscriber equipment is carrying out redirecting cell, so can show that former Serving cell is unavailable, therefore, if subscriber equipment search is less than non-pseudo-base station, namely the broadcast that the community not receiving non-pseudo-base station sends, then subscriber equipment still can be selected to reside in the first community, this also can be avoided erroneous judgement, because there are some non-pseudo-base stations, the value of the parameter of carrying in the possible broadcast that it sends also can meet the default span for identifying pseudo-base station provided in the embodiment of the present invention, namely the feature of pseudo-base station may also be had, so subscriber equipment do not have other non-pseudo-base stations can resident time, select the base station residing in satisfied pseudo-base station feature, this misjudgment phenomenon can be avoided, also service subscriber equipment can being avoided to can not get any base station provide.
Wherein, redirecting cell, such as can be redirected to GSM community, such as can from GSM redirecting cell to GSM community, or can from WCDMA redirecting cell to GSM community, or can from TD-SCDMA redirecting cell to GSM community, or from LTE redirecting cell to GSM community, or also can be redirected to the community in other communication systems, such as, from GSM redirecting cell to TD-SCDMA community, or from TD-SCDMA redirecting cell to LTE community, etc.
Optionally, if subscriber equipment is when departing from the coverage of former Serving cell, or signal strength signal intensity in former Serving cell very weak time the first community of receiving broadcast of sending, namely subscriber equipment is that Cell searching is (such as before carrying out service area, if former community is GSM community, then first terminal is carrying out GOOS) time the first community of receiving broadcast of sending, so, subscriber equipment generally can carry out the search of full frequency band when searching for new community, in this case, if the base station at the first place, community is defined as pseudo-base station by subscriber equipment, and subscriber equipment does not search the community not meeting pseudo-base station feature, namely the community that non-pseudo-base station provides is not searched, then still can select the community residing in satisfied pseudo-base station feature, it is such as the first community.Because, former Serving cell can think unavailable substantially, if subscriber equipment search is less than non-pseudo-base station, namely the broadcast that the community not receiving non-pseudo-base station sends, then subscriber equipment still can be selected to reside in the first community, this also can be avoided foregoing misjudgment phenomenon, the service simultaneously subscriber equipment also can being avoided to can not get any base station providing.
Optionally, if the first community is the broadcast that the first community received when carrying out full frequency band search sends, so, if the base station at the first place, community is defined as pseudo-base station by subscriber equipment, and subscriber equipment does not search the community not meeting pseudo-base station feature, namely do not search the community that non-pseudo-base station provides, then still can select the community residing in satisfied pseudo-base station feature, such as, be the first community.Because, if subscriber equipment is all searched for less than non-pseudo-base station at full frequency band, namely the broadcast that the community not receiving non-pseudo-base station sends, if so or else subscriber equipment resides in the community of satisfied pseudo-base station feature, may cause the service that cannot accept any base station, therefore, subscriber equipment still can be selected to reside in the first community, this also can be avoided foregoing misjudgment phenomenon, the service simultaneously subscriber equipment can being avoided to can not get any base station providing.
Optionally, if the broadcast that the first community that subscriber equipment is the reception when the frequency range of specifying carries out Cell searching sends, such as subscriber equipment is the broadcast sent in first community of carrying out receiving when starting shooting and search net Cell searching, so, if the base station at the first place, community is defined as pseudo-base station by subscriber equipment, then directly can refuse resident first community.Because when net Cell searching is searched in start, subscriber equipment may only be searched on band segment, some frequency ranges are also had not search for, and these frequency ranges may have non-pseudo-base station, and the object of the embodiment of the present invention is the community making terminal equipment not reside in pseudo-base station providing as far as possible, therefore in this case, subscriber equipment can refuse to reside in the first community, such as can continue to search in other frequency ranges, reside in the community that non-pseudo-base station provides as far as possible.
In the embodiment of the present invention, terminal equipment carries out Cell searching, such as, have received the broadcast that the second community sends, just show to have searched the second community, if do not receive the broadcast of the second community transmission, just shows not search the second community.
The equipment in the embodiment of the present invention is introduced below in conjunction with accompanying drawing.
Refer to Fig. 3 A, based on same inventive concept, the embodiment of the present invention provides a kind of subscriber equipment, and this subscriber equipment can comprise processor (processor) 301 and receiver 302.Wherein, receiver 302 may be used for the broadcast that reception first community sends, whether the base station as the characteristic parameter extracted in broadcast, the first place, community of the value of characteristic parameter and feature database being compared, judge is pseudo-base station and determines whether that will reside in first community etc. works, and all can be completed by processor 301.
In addition, setting feature database, namely the default span of characteristic parameter is set, can be set by processor 301, the value of the characteristic parameter of the broadcast that such as processor 301 can be sent by study different districts sets, or also can be set by the user, such as can be set by the production firm of subscriber equipment, and feature database is stored in a user device.
Wherein, processor 301 can be baseband processor or communication processor, or can be the SOC (system on a chip) (SystemonChip, SoC) comprising application processor, such as, can be the MSM8996 of high pass, etc.
Receiver 302 can belong to the radio system of this subscriber equipment, for carrying out network service with external equipment, specifically can be communicated with external equipment by networks such as Ethernet, wireless access network, WLAN (wireless local area network).
Referring to Fig. 3 B, is the comparatively detailed structural representation of this subscriber equipment.This subscriber equipment can also comprise memory 303, demodulation module 304, transmitter 305, modulation module 306 and antenna 307.This subscriber equipment can be communicated with base station 308 by antenna 307.
Wherein, the quantity of memory 303 can be one or more.Memory 303 can comprise read-only memory (ReadOnlyMemory, ROM), random access memory (RandomAccessMemory, RAM) and magnetic disc store, etc.Memory 303 may be used for storage of processor 301 and to execute the task required instruction, can also be used for storing data.
Transmitter 305 also can belong to the radio system of this subscriber equipment.
Wherein, if base station 308 sends signal to this subscriber equipment, then this subscriber equipment receives the signal of base station transmission by antenna 307, the electromagnetic wave signal of reception is converted to the signal of telecommunication and sends into receiver 302 by antenna 307, signal is sent into demodulation module 304 by receiver 302, demodulation module 304 carries out demodulation to this signal, and the signal after demodulation is given processor 301 and processed by demodulation module 304.
If this subscriber equipment sends signal to base station 308, then signal to be sent is sent into modulation module 306 by processor 301, modulation module 306 is modulated to sent signal, signal after adjustment is sent into transmitter 305 by modulation module 306, the signal received is sent into antenna 307 by transmitter 305, the signal of telecommunication of reception is converted to electromagnetic wave signal by antenna 307, sends to base station 308.
By carrying out design programming to processor 301, the code corresponding to aforementioned shown method being cured in chip, thus making chip operationally can perform the method shown in earlier figures 2.How to carry out design programming to processor 301 is technology known in those skilled in the art, repeats no more here.
This subscriber equipment may be used for performing the method described in above-mentioned Fig. 2, such as, can be foregoing subscriber equipment.Therefore, for the function etc. that each unit in this subscriber equipment realizes, with reference to the description of such as front method part, seldom can repeat.
Embodiments provide the method for the pseudo-base station of a kind of subscriber equipment identification, subscriber equipment can be avoided resident to pseudo-base station, and improve the communication quality of subscriber equipment, the rubbish short message also avoiding pseudo-base station to send out causes interference even to damage to subscriber equipment as far as possible.Meanwhile, the method that the embodiment of the present invention provides, only need extract the characteristic parameter in broadcast, and determine the value of characteristic parameter, and the method comparison needed for subscriber equipment is simple, is convenient to promote the use of.
In the present invention, should be understood that disclosed equipment and method can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit or unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the embodiment of the present invention.
Each functional unit in embodiments of the present invention can be integrated in a processing unit, or unit also can be all independently physical modules.
If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the all or part of of technical scheme of the present invention can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) or processor perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: general serial bus USB (UniversalSerialBusflashdrive), portable hard drive, ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
The above, above embodiment is only in order to be described in detail technical scheme of the present invention, but the explanation of above embodiment is just for helping the method understanding the embodiment of the present invention, should not be construed as the restriction to the embodiment of the present invention.The change that those skilled in the art can expect easily or replacement, within the protection range that all should be encompassed in the embodiment of the present invention.
Claims (16)
1. a pseudo-base station identification approach, is characterized in that, comprising:
Subscriber equipment receives the broadcast that the first community sends;
Described subscriber equipment resolves described broadcast to obtain characteristic parameter, and described characteristic parameter comprises at least one in control channel characterising parameter, cell selection parameters, cell ID, Location Area Identification and system information 3 in remainder bytes;
Described characteristic parameter mates with feature database by described subscriber equipment, and wherein, described feature database comprises the default span corresponding with described characteristic parameter;
If the value of described characteristic parameter is positioned at described default span, then the base station at described first place, community is defined as pseudo-base station by described subscriber equipment.
2. the method for claim 1, it is characterized in that, described default span is that normal span corresponding with described characteristic parameter in normal base station sets, and/or described default span is set according to conventional span corresponding with described characteristic parameter in pseudo-base station.
3. method as claimed in claim 1 or 2, is characterized in that,
Subscriber equipment receives the broadcast that the first community sends, and comprising:
Described subscriber equipment, when carrying out cell reselection, receives described broadcast;
After the base station at described first place, community is defined as pseudo-base station by described subscriber equipment, also comprise:
Described subscriber equipment refusal resides in described first community.
4. method as claimed in claim 1 or 2, is characterized in that,
Subscriber equipment receives the broadcast that the first community sends, and comprising:
Described subscriber equipment, when changing persistent district, receives described broadcast;
After the base station at described first place, community is defined as pseudo-base station by described subscriber equipment, also comprise:
Described subscriber equipment refusal resides in described first community.
5. method as claimed in claim 1 or 2, is characterized in that,
Subscriber equipment receives the broadcast that the first community sends, and comprising:
Described subscriber equipment, when carrying out redirecting cell, receives described broadcast;
After the base station at described first place, community is defined as pseudo-base station by described subscriber equipment, also comprise:
If described subscriber equipment does not search non-pseudo-base station, then described subscriber equipment is selected to reside in described first community.
6. method as claimed in claim 1 or 2, is characterized in that,
Subscriber equipment receives the broadcast that the first community sends, and comprising:
Described subscriber equipment during Cell searching, receives described broadcast before carrying out service area;
After the base station at described first place, community is defined as pseudo-base station by described subscriber equipment, also comprise:
If described subscriber equipment does not search non-pseudo-base station, then described subscriber equipment is selected to reside in described first community.
7. method as claimed in claim 1 or 2, is characterized in that,
Subscriber equipment receives the broadcast that the first community sends, and comprising:
Described first community, when full frequency band carries out Cell searching, receives described broadcast;
After the base station at described first place, community is defined as pseudo-base station by described subscriber equipment, also comprise:
If described subscriber equipment does not search non-pseudo-base station, then described subscriber equipment is selected to reside in described first community.
8. method as claimed in claim 1 or 2, is characterized in that,
Subscriber equipment receives the broadcast that the first community sends, and comprising:
Described subscriber equipment, when the frequency range of specifying carries out Cell searching, receives described broadcast;
After the base station at described first place, community is defined as pseudo-base station by described subscriber equipment, also comprise:
Described subscriber equipment refusal resides in described first community.
9. a subscriber equipment, is characterized in that, comprising:
Receiver, for receiving the broadcast that the first community sends;
Processor, for resolving described broadcast to obtain characteristic parameter, described characteristic parameter comprises at least one in control channel characterising parameter, cell selection parameters, cell ID, Location Area Identification and system information 3 in remainder bytes; Mated with feature database by described characteristic parameter, wherein, described feature database comprises the default span corresponding with described characteristic parameter; If the value of described characteristic parameter is positioned at described default span, then the base station at described first place, community is defined as pseudo-base station.
10. subscriber equipment as claimed in claim 9, it is characterized in that, described default span is that normal span corresponding with described characteristic parameter in normal base station sets, and/or described default span is set according to conventional span corresponding with described characteristic parameter in pseudo-base station.
11. subscriber equipmenies as described in claim 9 or 10, is characterized in that,
When described receiver is specifically for carrying out cell reselection at described subscriber equipment, receive described broadcast;
Then described processor also for: after the base station at described first place, community is defined as pseudo-base station, refusal reside in described first community.
12. subscriber equipmenies as described in claim 9 or 10, is characterized in that,
When described receiver is specifically in described user equipment to change persistent district, receive described broadcast;
Then described processor also for: after the base station at described first place, community is defined as pseudo-base station, refusal reside in described first community.
13. subscriber equipmenies as described in claim 9 or 10, is characterized in that,
When described receiver is specifically for carrying out redirecting cell at described subscriber equipment, receive described broadcast;
Then described processor also for: after the base station at described first place, community is defined as pseudo-base station, if do not search non-pseudo-base station, then select reside in described first community.
14. subscriber equipmenies as described in claim 9 or 10, is characterized in that,
When described receiver is specifically for before carrying out service area at described subscriber equipment during Cell searching, receive described broadcast;
Then described processor also for: after the base station at described first place, community is defined as pseudo-base station, if do not search non-pseudo-base station, then select reside in described first community.
15. subscriber equipmenies as described in claim 9 or 10, is characterized in that,
When described receiver is specifically for carrying out Cell searching at described subscriber equipment at full frequency band, receive described broadcast;
Then described processor also for: after the base station at described first place, community is defined as pseudo-base station, if do not search non-pseudo-base station, then select reside in described first community.
16. subscriber equipmenies as described in claim 9 or 10, is characterized in that,
When described receiver is specifically for carrying out Cell searching at described subscriber equipment in the frequency range of specifying, receive described broadcast;
Then described processor also for: after the base station at described first place, community is defined as pseudo-base station, refusal reside in described first community.
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Application publication date: 20160224 |