CN102006632B - Method and system for controlling switching types of home base station - Google Patents
Method and system for controlling switching types of home base station Download PDFInfo
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- CN102006632B CN102006632B CN200910091981.4A CN200910091981A CN102006632B CN 102006632 B CN102006632 B CN 102006632B CN 200910091981 A CN200910091981 A CN 200910091981A CN 102006632 B CN102006632 B CN 102006632B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
Abstract
The invention discloses a method and system for controlling switching types of a home base station. Switching strategies are configured for a first base station and a second base station. The method further comprises the steps of: obtaining an identification of the second base station by the first base station, and confirming the type of the second base station according to the obtained nearby base station list; executing the switching type control by the first base station according to the type of the second base station and the switching strategies; providing the identification of the first base station for the second base station by the first base station, confirming the type of the first base station by the second base station according to the identification of the first base station and the obtained nearby base station list; and executing the switching type control by the second base station according to the type of the first base station and the switching strategies. According to the invention, the control function of the switching types supported by the home base station by the network is realized in a process of switching a mobile terminal based on a home base station system.
Description
Technical field
The present invention relates to the base station from home communications field, refer to especially a kind of switching type control method and system of base station from home.
Background technology
For higher service rate being provided to mobile subscriber and reducing the needed expense of high rate services of using, meanwhile, the deficiency covering in order to make up existing distributed cellular radio communication system, the place such as Hui family, Administrative Area arranges base station from home conventionally.Base station from home is a kind of small-sized, lower powered base station, has the advantages such as practicality, convenient, low-power output.
Fig. 1 is the communication network architecture schematic diagram that comprises base station from home, as shown in Figure 1, base station from home can be linked into by this logical ne of IAD authentication and authorization charging (AAA, Authentication, the Authorization and Accounting) server of core net.Between base station from home and IAD, can there is a security gateway.Security gateway can close and establish also and can set up separately with IAD with Access Network.The Main Function of security gateway is the link safety ensureing between base station from home and IAD, user data server.
The major function of IAD comprises: the fail safe of checking base station from home, process base station from home registration, base station from home is carried out operation maintenance management, according to the requirement of operator, base station from home is configured and is controlled, between core net and base station from home, carry out exchanges data.
Aaa server is the critical facility in communication network, for realizing the control and management of Virtual network operator to data, user, provide Certificate Authority and account service, conventionally and the collaborative work such as access to netwoks control, gateway server, database and user profile catalogue.
The major function of anchor point authentication device (AA, Anchor Authenticator) is to mobile terminal, to provide access authentication service when mobile terminal networks; After mobile terminal networks, before logout, be in charge of and safeguard the contextual information of mobile terminal.Conventionally anchor point authentication device can be placed in IAD.
The effect of anchor point IAD is resident anchor point datapath function, from or the data that mail to mobile terminal all need by this anchor point IAD.
Supporting that the switching of mobile terminal between two adjacent base stations is a critical function of current mobile communication, is also to realize ensureing the continuous important prerequisite of mobile terminal service.Switch and refer to that mobile terminal moves to a new base station (target BS) for it provides the base station (serving BS) of wireless service from current, and support the process of the wireless service that this new base station provides.A pair of serving BS like this and target BS be base station, opposite end each other each other.
In a mobile radio communication that contains base station from home, serving BS/target BS can be macro base station, can be also base station from home.According to the type of the base station, opposite end of base station from home, the switching relevant to base station from home comprises polytype, for example, mobile terminal from macro base station be switched to base station from home, mobile terminal is switched to macro base station, mobile terminal from base station from home and between two base station from home that close on, switches etc.Can be by above-mentioned according to the type of the base station, opposite end of base station from home, the polytype that the switching relevant to base station from home comprises, is called the switching type that base station from home is supported.
Base station from home is purchased by user, and this user of home base station be necessary for base station from home and operator signing after, the service that could use base station from home to provide.These services comprise: relative, friend that user uses the mobile terminal of oneself to be linked into mobile communications network or user by this base station from home use them by this base station from home, to be linked into mobile communications network by mobile terminal separately.
Generally, operator all can provide diversity service to user of home base station, as according to the rank of user of home base station, to user, provides different services.The base station from home that network can be controlled this user provides service to several mobile terminals simultaneously.Such as, for high level user of home base station, its base station from home can be served five mobile terminals simultaneously; Low-level base station from home can only once be served a mobile terminal.
Network can be controlled QoS rank and the expenses standard of the mobile terminal of the base station from home service of supporting this user.Such as, for high level user of home base station, support the mobile terminal of its base station from home service can enjoy network for its higher QoS guarantee providing, lower expenses standard; And for low-level user of home base station, support the mobile terminal of its base station from home service need to bear network for its lower QoS guarantee and higher expenses standard providing.
The base station from home that network can also be controlled this user can provide the business continuity guarantee of which kind of degree to mobile terminal, control the switching type that this base station from home can be supported, such as:
For high level user of home base station, its base station from home can provide above-mentioned all types of switching to mobile terminal; And for low-level user of home base station, its base station from home can only to mobile terminal provide in above-mentioned switching type a kind of (for example, only support mobile terminal to be switched to macro base station around from this base station from home, and do not support it to be switched on another one base station from home), even to mobile terminal, do not provide handoff functionality.
The control of the switching type that above-mentioned network is supported base station from home, controls referred to as switching type.
In prior art, mobile terminal switching flow based on Fig. 1 home base station system as shown in Figure 2, wherein, serving BS is the current base station that service is provided for mobile terminal, to be that mobile terminal is changeable enter the base station of (incision) to target BS, such target BS can have one or more, and serving BS and target BS can be base station from home, and concrete steps are described below:
Step 201, in handoff preparation phase, mobile terminal is initiated mobile request to serving BS, carries the candidate target base station that one group of mobile terminal is selected in request.
Step 202, serving BS sends one to each candidate target base station and prepares handover request, the sign of carrying the anchor point authentication device of mobile terminal in this request.
Step 203, after receiving and preparing handover request, exchanges the contextual information relevant with this mobile terminal between candidate target base station and anchor point authentication device (finding corresponding anchor point authentication device according to the sign of anchor point authentication device).
Step 204, is initiated as the log-on data passage of this mobile terminal between candidate target base station and anchor point IAD by candidate target base station pre-established.
Step 205, candidate target base station is returned to preparation switching request response to serving BS, has wherein indicated this candidate target base station whether to support to prepare handover request.
Step 206, serving BS sends mobile request response to mobile terminal, wherein comprises the potential target base station (supporting to prepare the candidate target base station of handover request) that one or more this mobile terminal can be cut.
Step 207, serving BS sends and prepares switch acknowledgment message to potential target base station.
From the flow process of Fig. 2, can find out, existing switching flow is not considered switching type control problem, and therefore, switching flow of the prior art can not be realized the function of the switching type that network control base station from home supports.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of switching type control method and system of base station from home, can in the mobile terminal switching flow based on home base station system, realize the control function of the switching type that network supports base station from home.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of switching type control method of base station from home, is the first base station and the second base station configuration switchover policy, and the method also comprises:
Described the first base station obtains the sign of described the second base station, and according near the station list obtaining, confirms the type of described the second base station; Described the first base station, according to type and the described switchover policy of described the second base station, is carried out switching type and is controlled;
Described the first base station offers described the second base station by the sign of self;
The sign of described the second described the first base station of foundation, base station and near the station list obtaining are confirmed the type of described the first base station; Described the second base station, according to type and the described switchover policy of described the first base station, is carried out switching type and is controlled.
Wherein, when described the first base station is target BS, described the second base station is serving BS; When described the first base station is serving BS, described the second base station is target BS;
Described serving BS provides the base station of service for current for mobile terminal; Described target BS is the base station that mobile terminal will be cut;
The type information of described the first base station or the second base station comprises: base station from home and macro base station.
For described the first base station and the second base station configuration switchover policy, be specially: for described the first base station and the second base station configure respectively corresponding switchover policy, and by network side entity, described switchover policy is sent to described the first base station or the second base station.
Described switchover policy is current base station support or the switching type do not supported, comprising:
Support or do not support that mobile terminal is switched to macro base station from base station from home;
And/or support or do not support that mobile terminal is switched to base station from home from macro base station;
And/or support or do not support that mobile terminal switches between base station from home;
And/or support or do not support mobile terminal to be switched to another base station from home from current base station from home;
And/or support or do not support mobile terminal to be switched to current base station from home from another base station from home.
Described the first base station is serving BS, and when the second base station is target BS, described the first base station obtains the sign of the second base station, is specially:
When mobile terminal is initiated handover request, to described the first base station, send mobile request, carry the sign of described the second base station of being determined by mobile terminal in described mobile request, described the first base station obtains the sign of described the second base station;
Or when serving BS is initiated the handover request of mobile terminal, described the first base station selected base station of closing on is as described the second base station, described the first base station obtains the sign of described the second base station;
Described the first base station is target BS, and when described the second base station is serving BS, described the first base station obtains the sign of the second base station, is specially:
When mobile terminal is initiated handover request, to described the first base station, send distance measurement request, carry the sign of described the second base station in described distance measurement request, described the first base station obtains the sign of described the second base station.
The type of the second base station is confirmed in the first base station, or described the second base station confirms the type of the first base station, is specially:
When near described, station list is near macro base station list,
Described the first base station is judged when the sign of described the second base station is present near macro base station list, is confirmed that described the second base station is macro base station; Otherwise, confirm that described the second base station is base station from home;
Described the second base station is judged when the sign of described the first base station is present near macro base station list, is confirmed that described the first base station is macro base station; Otherwise, confirm that described the first base station is base station from home;
When near described, station list is near base station from home list,
Described the first base station is judged when the sign of described the second base station is present near base station from home list, is confirmed that described the second base station is base station from home; Otherwise, confirm that described the second base station is macro base station;
Described the second base station is judged when the sign of described the first base station is present near base station from home list, is confirmed that described the first base station is base station from home; Otherwise, confirm that described the first base station is macro base station;
When near described, station list is near macro base station list and near base station from home list,
Described the first base station judges that the sign of described the second base station is present near macro base station list or near base station from home list, if near macro base station list being present in confirms that described the second base station is macro base station; If near base station from home list being present in, confirms that described the second base station is base station from home;
Described the second base station judges that the sign of described the first base station is present near macro base station list or near base station from home list, if near macro base station list being present in confirms that described the first base station is macro base station; If near base station from home list being present in, confirms that described the first base station is base station from home.
Described the first base station is serving BS, and when the second base station is target BS, described the first base station is carried out switching type and controlled, and is specially:
Described the first base station, according to type and the described switchover policy of described the second base station, while judging the switching of supporting current type, sends and prepares handover request to described the second base station; The first base station offers described the second base station by described preparation handover request by the sign of self;
Judge while not supporting the switching of current type, store the sign of described the second base station described the first base station candidate target base station list from self, delete.
Described the second base station is carried out switching type and is controlled, and is specially:
The switching of supporting current type, according to type and the described switchover policy of described the first base station, is judged in described the second base station, and when judgement meets default precondition, judges the handover request of accepting described mobile terminal; Judge while not supporting the switching of current type, judge the handover request of the described mobile terminal of refusal.
When the handover request of accepting described mobile terminal is judged in the second base station, the method further comprises: to described the first base station, return to successful preparation switching request response; The second base station that switching request response is successfully prepared using described transmission in described the first base station is as potential target base station, and asks response or mobile notice to inform mobile terminal by movement; Mobile terminal is carried out the switching from described the first base station to the second base station according to described potential target base station;
When the handover request of the described mobile terminal of refusal is judged in the second base station, the method further comprises: preparation switching request response from failure to described the first base station that return to.
Described the first base station is target BS, and when the second base station is serving BS, described the first base station is carried out switching type and controlled, and is specially:
Described the first base station, according to type and the described switchover policy of described the second base station, while judging the switching of supporting current type, sends context information request to described the second base station; The first base station, by described context information request, offers described the second base station by the sign of self;
Judge while not supporting the switching of current type, to described mobile terminal, send failed ranging response, the handover request of refusal mobile terminal.
Described the second base station is carried out switching type and is controlled, and is specially:
Successful contextual information response, according to type and the described switchover policy of described the first base station, while judging the switching of supporting current type, is returned to described the first base station in the second base station;
Judge while not supporting the switching of current type, to described the first base station, return to the contextual information response of failure.
When successful contextual information response is returned in described the second base station, the method further comprises:
When described the first base station is confirmed to meet default precondition, to described mobile terminal, return to successful ranging response, described mobile terminal is carried out described the second base station to the switching of the first base station; When described the first base station is confirmed not meet default precondition, to described mobile terminal, return to the ranging response of failure, refuse the handover request of described mobile terminal;
When the contextual information response of failure is returned in described the second base station, the method further comprises: the ranging response of failure is returned in described the first base station to described mobile terminal, refuses the handover request of described mobile terminal.
Described the first base station or the second base station obtain near station list, be specially: network side entity sends to described the first base station or the second base station by the sign of near the macro base station described the first base station or the second base station and/or base station from home with the form of list, obtain described near macro base station list and/or near base station from home list;
Or, described network side entity is in the adjacent base station list issuing to described the first base station or the second base station, by corresponding sign, indicate macro base station and/or the base station from home in described adjacent base station list, using near the part adjacent base station list of described macro base station macro base station list described, using near the part adjacent base station list of described base station from home base station from home list described.
The present invention also provides a kind of switching type control system of base station from home, and this system comprises: dispensing unit, and the first base station and the second base station, wherein,
Described dispensing unit, is used to described the first base station and the second base station configuration switchover policy;
Described the first base station, for obtaining the sign of described the second base station, and confirms the type of described the second base station according near the station list that obtains; Also, for type and described switchover policy according to described the second base station, carry out switching type and control; Also for the sign of self is provided to described the second base station;
Described the second base station, for obtaining the sign of described the first base station, and confirms the type of described the first base station according near the station list that obtains; Also, for type and described switchover policy according to described the first base station, carry out switching type and control.
Wherein, when described the first base station is target BS, described the second base station is serving BS; When described the first base station is serving BS, described the second base station is target BS;
Described serving BS provides the base station of service for current for mobile terminal; Described target BS is the base station that mobile terminal will be cut;
The type information of described the first base station or the second base station comprises: base station from home and macro base station.
This system further comprises mobile terminal and network side entity;
Described mobile terminal, controls for the switching type of carrying out according to the first base station and the second base station, carries out the switching to the second base station or from the second base station to the first base station from the first base station;
Described network side entity, for to described the first base station or the second base station provide described near station list.
In switching type control program of the present invention, in the preparatory stage of switching, serving BS and target BS first-selection are obtained the other side's sign, and near the station list of storing in conjunction with self is judged the other side's type; Then, according to the other side's type and pre-configured switchover policy, carry out the control of switching type, so, can realize the control function that realizes the switching type that network supports base station from home in the mobile terminal switching flow based on home base station system.
Accompanying drawing explanation
Fig. 1 is the communication network architecture schematic diagram that comprises base station from home;
Fig. 2 is the mobile terminal switching flow schematic diagram based on home base station system in prior art;
Fig. 3 is the switching type control method schematic flow sheet of base station from home of the present invention;
Fig. 4 is the schematic flow sheet of the switching type control method embodiment mono-of base station for the present invention;
Fig. 5 is the schematic flow sheet of the switching type control method embodiment bis-of base station for the present invention;
Fig. 6 is the schematic flow sheet of the switching type control method embodiment tri-of base station for the present invention;
Fig. 7 is the structural representation of the switching type control system of base station from home of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the present invention is further elaborated.
The switching type control method of base station from home of the present invention, as shown in Figure 3, comprising:
Step 301 is the first base station and the second base station configuration switchover policy.
Wherein, when the first base station is target BS, the second base station is serving BS; When the first base station is serving BS, the second base station is target BS;
Serving BS provides the base station of service for current for mobile terminal; Target BS is the base station that mobile terminal will be cut.
The type information of the first base station or the second base station comprises: base station from home and macro base station.
Before mobile terminal is carried out handover operation, for each base station from home, operator all can control relevant strategy to switching type for it customizes one group, referred to as switchover policy, preferably, can represent by the form of bitmap this strategy, is specially:
As required, a 0x00 can be set express support for/do not support mobile terminal and be switched to base station from home (now, this base station from home is as target BS) from macro base station; A 0x01 is set expresses support for/do not support mobile terminal and be switched to macro base station (now, this base station from home is as serving BS) from base station from home; A 0x02 is set expresses support for/do not support mobile terminal and between current base station from home and another one base station from home, switch (now, current base station from home also can be used as target BS as serving BS).
Or, the definition of rheme 0x00 and position 0x01 in reservation, increase a position 0x02, position 0x03 definition: a 0x02 is set expresses support for/do not support mobile terminal and be switched to another one base station from home (now, current base station from home is as serving BS) from current base station from home; A 0x03 is set expresses support for/do not support mobile terminal and be switched to current base station from home (now, current base station from home is as target BS) from another base station from home.
Complete after the customization of switchover policy, need to this strategy be sent in the switching control function of base station from home by network side entity: preferably, at base station from home, carrying out initialization powers in the process networking, by network side entities such as configuration server or policy control server or network management system or self-organizing network servers (SONServer, Self Organizing Network Function Server), strategy is sent to base station from home; Certainly, also can be at family expenses base station access network network as after base station work, then by above-mentioned network side entity, strategy is sent to base station from home.
For above-mentioned base station from home, also need to obtain from network side entity near the sign of one or more base station this base station from home, as Base Station Identification (BSID, Base Station Identifier), network access Identifier (NAI, Network Access Identifier) etc.Near base station so-called base station from home refers to the overlapped coverage with this base station from home, or is less than certain threshold value with the distance of this base station from home, or is in other base stations in a region together with this base station from home.
Network side entity can send to base station from home with the form of list by near the macro base station this base station from home or base station from home, and is preserved by base station from home.Now, this base station from home has near a macro base station list or near a base station from home class table, and what in list, preserve is the sign of macro base station or base station from home;
Or, network side entity sends to current base station from home with two lists by near the macro base station this base station from home and base station from home, what one of them list was preserved is near the sign of the macro base station this base station from home, and what another list was preserved is near the sign of other base station from home this base station from home; Now this base station from home has near a macro base station list, and near a base station from home list, and these two lists are independently two lists in logic;
Or, it is macro base station in order to which adjacent base station in showing this list that network side entity can increase corresponding sign (this sign can arrange as required) in the adjacent base station list of this base station from home issuing to base station from home, and which adjacent base station is base station from home; Described adjacent base station list can be a neighbor base stations list, has wherein comprised near the macro base station of this base station from home and/or near the sign of other base station from home.Near macro base station list near the part list of macro base station in adjacent base station list can being referred to as; Near base station from home list near the part list of base station from home in adjacent base station list is referred to as.
Near above-mentioned macro base station list and near base station from home list can be referred to as near the station list of this base station from home.
Network side entity can send to base station from home by near above-mentioned station list by several different methods.For example, carry out initialization power in the process networking at base station from home, by configuration server, or policy control server, or the network side entity such as network management system or self-organizing network server sends to this base station from home by near above-mentioned station list; Wherein, macro base station is disposed by operator, and generally, near the macro base station list of base station from home can not change.
Customization based on above-mentioned switchover policy, and near station list obtain, particularly near the obtaining of macro base station list, the switching type control program of base station from home of the present invention is described below by specific embodiment.
The schematic flow sheet that Figure 4 shows that the switching type control method embodiment mono-of base station from home of the present invention, comprising:
Step 401, mobile terminal sends mobile request to serving BS.
Mobile terminal has accessed in mobile communications network, and prepares to carry out handover operation; In handoff preparation phase, mobile terminal to current be that the serving BS of its service is initiated handover request, in this embodiment, handover request, for mobile request, is carried the candidate target base station that one group of mobile terminal is selected in request.
Usually, mobile terminal can be determined one group of above-mentioned candidate target base station by measuring the modes such as the wireless signal strength of periphery and quality.In this group candidate target base station, can comprise one or more macro base station and/or base station from home simultaneously.Preferably, the form by this group candidate target base station with list is carried in mobile request, and what in this list, store can be the sign (as BSID, NAI etc.) of each candidate target base station, and so serving BS can obtain the sign of candidate target base station.
It is pointed out that near can arranging, sign and the sign in candidate target base station in station list adopts same set of identification method, as all used BSID, or NAI etc.
Step 402, serving BS obtains the sign of candidate target base station from candidate target base station list, near the type of the station list judgement candidate target base station having had according to serving BS, and according to switchover policy, carry out switching type and control.
If this serving BS is a macro base station, needn't confirm the type of candidate target base station, do not need to carry out switching type yet and control, and directly perform step 403.
If this serving BS is a base station from home, if and near macro base station list has only been preserved in this base station from home this locality,, first this base station from home travels through near its local macro base station list of preserving, and judges whether the sign of candidate target base station is present near macro base station list; If exist, judge that this candidate target base station is as macro base station; Otherwise, judge that this candidate target base station is as base station from home.
If near base station from home list has only been preserved in this base station from home this locality, when the sign of candidate target base station is present in this list, judge that this candidate target base station is as base station from home; Otherwise be macro base station.
If this base station from home this locality is except near macro base station list preserving, while also preserving near base station from home list, this base station from home, according to the sign of candidate target base station, judges that this sign is present near macro base station list or is present near base station from home list; If in macro base station list, judge that this candidate target base station is as macro base station near being present in; If in base station from home list, judge that this candidate target base station is as base station from home near being present in.
If this sign is neither present near macro base station list, also near base station from home list not being present in, this base station from home can be judged according to default error handling method (generally by carrier customization) type of this candidate target base station: as give tacit consent to it as macro base station or base station from home, or directly return to mistake, process ends etc.
While preserving near macro base station list and near base station from home list in above-mentioned base station from home, these two lists can be independently two lists in logic, also can jointly be present in an adjacent base station list simultaneously.
After having confirmed the type of candidate target base station, serving BS (base station from home) is carried out switching type and is controlled, and is specially:
The switchover policy that serving BS (base station from home) is stored according to self, if strategy regulation does not support that mobile terminal is switched to macro base station from base station from home, according to the type of candidate target base station, if candidate target base station is macro base station, this serving BS is deleted this candidate target base station from candidate target base station list; If candidate target base station is not macro base station (being base station from home), Current Serving BTS is supported the switching of this type.If strategy regulation does not support mobile terminal to be switched to another base station from home from current base station from home, according to the type of candidate target base station, if candidate target base station is base station from home, this serving BS is deleted this candidate target base station from candidate target base station list; If candidate target base station is not base station from home (being macro base station), Current Serving BTS is supported the switching of this type.
Otherwise, if switchover policy regulation Current Serving BTS supports that mobile terminal is switched to candidate target base station (base station from home or macro base station) from serving BS (base station from home), Current Serving BTS supports mobile terminal to carry out the switching of current type.
It is pointed out that if serving BS is macro base station, give tacit consent to it and support mobile terminal to carry out the switching of current type.
Step 403, serving BS all sends one to candidate target base station and prepares handover request, the sign of carrying serving BS in this request, and the sign of the anchor point authentication device of mobile terminal and the sign of anchor point IAD.
Usually, if serving BS cannot directly send to candidate target base station by preparing handover request, so, serving BS can be prepared this handover request and first send to relay access network and shut, then is closed preparation handover request is forwarded in candidate target base station by this relay access network.
Step 404, candidate target base station is obtained the sign of serving BS from prepare handover request, near the type of the station list judgement serving BS having had according to this candidate target base station, and according to switchover policy, carry out switching type and control.
If candidate target base station is macro base station, needn't judge the type of serving BS, do not need to carry out switching type yet and control, and directly perform step 405; If candidate target base station is base station from home, according to the method for describing in step 402, the type of judgement serving BS, for example: first candidate target base station travels through near its local macro base station list of preserving, and judges whether the sign of serving BS is present near macro base station list; If exist, judge that serving BS is as macro base station; Otherwise, judge that serving BS is as base station from home.
After having confirmed the type of serving BS, candidate target base station (base station from home) is carried out switching type and is controlled, and is specially:
The switchover policy that candidate target base station (base station from home) is stored according to self, if strategy is stipulated this candidate target base station and is not supported mobile terminal to be switched to base station from home from macro base station, according to the type of serving BS, if serving BS is macro base station, this candidate target base station will be refused above-mentioned preparation handover request accordingly, redirect execution step 407, by sending failed preparation switching request response, an indication is carried in this response, be used for informing that this candidate target base station of serving BS (base station from home) do not support the switching of this type, this candidate target base station is refused the handover request of mobile terminal, if serving BS is not macro base station, current candidate target base station supports mobile terminal to carry out the switching of current type.
If the strategy current candidate target base station of regulation (base station from home) does not support mobile terminal to be switched to base station from home from base station from home, according to the type of serving BS, if serving BS is base station from home, current candidate target base station does not support mobile terminal to carry out the switching of current type, now, this candidate target base station will be refused above-mentioned preparation handover request accordingly, jump to step 407, to serving BS, return to the preparation switching request response of failure, an indication is carried in this response, be used for informing that this candidate target base station of serving BS (base station from home) do not support the switching of this type, if serving BS is not base station from home, current candidate target base station supports mobile terminal to carry out the switching of current type.
Here, if all candidate target base station are not supported the switching of current type,, execution step 408 o'clock, serving BS returns to the mobile request response of failure to mobile terminal, this handover request of refusal mobile terminal; But as long as there is a candidate target base station to accept the switching of current type, serving BS just can not return to mobile terminal the mobile request response of failure.
Otherwise, if stipulating current candidate target base station, switchover policy supports that mobile terminal is switched to base station from home from serving BS (macro base station or base station from home), current candidate target base station supports mobile terminal to carry out the switching of current type.
It is pointed out that if candidate target base station is macro base station, give tacit consent to it and support mobile terminal to carry out the switching of current type.
Step 405, the contextual information of mutual this mobile terminal of anchor point authentication device of candidate target base station and mobile terminal.
Wherein, candidate target base station can find the anchor point authentication device that mobile terminal is corresponding by preparing the sign of the anchor point authentication device in handover request.In this step, the mutual of the contextual information of mobile terminal is prior art, repeats no more herein.
Step 406, for this mobile terminal, to carry out data channel pre-established between the anchor point IAD of self and mobile terminal for candidate target base station.
Wherein, candidate target base station can find corresponding anchor point IAD by preparing the sign of anchor point IAD in handover request.Data channel is pre-established to be initiated by candidate target base station, this step be embodied as prior art, repeat no more herein.
Step 407, candidate target base station is returned to preparation switching request response to serving BS, and this response has indicated this candidate target base station whether to accept the handover request of mobile terminal.
From step 404, when candidate target base station (base station from home) is not supported the switching of current type, just by failed preparation switching request response, carry an indication, to inform that this candidate target base station of serving BS do not accept the reason of the handover request of mobile terminal: do not support the switching of current type.
When candidate target base station is not accepted the handover request of mobile terminal, also has a kind of situation: candidate target base station (macro base station or base station from home) is when supporting the switching of current type, also need to determine whether the handover request of accepting mobile terminal according to default precondition, whether the contextual information that whether has enough resources and a mutual mobile terminal of anchor point authentication device as: current candidate target base station is effectively and the pre-established whether success of above-mentioned data channel etc.According to actual operation strategy, if current candidate target base station only meets switching type of the present invention, and do not meet any one in above-mentioned other conditions, current candidate target base station also can not be accepted the handover request of mobile terminal, now, this candidate target base station is carried an indication by failed preparation switching request response, for informing that the current candidate target base station of serving BS do not accept the reason of the handover request of mobile terminal.
If all candidate target base station are not accepted the handover request of mobile terminal, performing step at 408 o'clock, serving BS returns to the mobile request response of failure to mobile terminal, refuse its handover request; But as long as there is a candidate target base station to accept the request of mobile terminal, serving BS just can not return to mobile terminal the mobile request response of failure.
Only have while meeting switching type of the present invention and above-mentioned other default preconditions, this candidate target base station just can be accepted the handover request of mobile terminal simultaneously.Now, candidate target base station sends and successfully prepares switching request response to serving BS.
Step 408, serving BS returns to mobile request response to mobile terminal.
Because serving BS has sent preparation handover request to a plurality of candidate target base station, now serving BS can receive that many are prepared switching request response, and these respond from different candidate target base station, comprising macro base station and base station from home.
Serving BS was after collecting the preparation switching request response of all candidate target base station, and when confirming that all candidate target base station are all refused the handover request of mobile terminal, serving BS returns to the mobile request response of failure to mobile terminal.
As long as have, be no less than the handover request that a candidate target base station has been accepted mobile terminal, serving BS will return to successful mobile request response to mobile terminal, wherein comprises the sign of one or more potential target base station.
The candidate target base station of accepting mobile terminal handover request of so-called potential target base station for obtaining through step 407.
Preferably, the sign of potential target base station can be formed to a potential target base station list, be carried in mobile request response; Mobile terminal, according to this list, is confirmed the target BS that self will cut.
Step 409, serving BS sends to prepare to switch to potential target base station to be confirmed, thinks that carrying out the switching of subsequent movement terminal from serving BS to potential target base station prepares.
The schematic flow sheet that Figure 5 shows that the switching type control method embodiment bis-of base station from home of the present invention, comprising:
Step 501, serving BS prepares to carry out the handover operation of mobile terminal.
In this flow process, mobile terminal is in access service base station, and serving BS is carried out handover operation according to the communication conditions decision-making of mobile terminal.Serving BS is according to the load condition of self, decision is switched to the mobile terminal of current its service of support on the base station that periphery load is less, in this embodiment, the handoff procedure of mobile terminal is initiated by serving BS as can be seen here, rather than initiated by mobile terminal self; In this process, serving BS is chosen one group of base station closing on as candidate target base station.Preferably, the sign of candidate target base station is formed to a candidate target base station list storage in this locality.The base station that what is called is closed on refers to the overlapped coverage with this serving BS, or is less than certain threshold value with the distance of this serving BS, or is in other base stations in a region together with this serving BS.
Step 502 to the processing of step 509 with step 402 to step 409, repeat no more herein.
What it is pointed out that in step 508 that serving BS returns to mobile terminal is mobile notice.
Fig. 6 is the schematic flow sheet of the switching type control method embodiment tri-of base station from home of the present invention, and this embodiment is uncontrolled switching flow, refers to that mobile terminal directly sends handover request to candidate target base station, as shown in the figure, comprising:
Step 601, mobile terminal sends distance measurement request to candidate target base station, carries the sign of serving BS.
In this flow process, mobile terminal has accessed home base station system, and the serving BS based on current in home base station system starts to carry out handover operation; Can be as candidate target base station with all base stations of closing on of Current Serving BTS in this home base station system, mobile terminal directly sends handover request to initiate handoff procedure to candidate target base station, in this embodiment, handover request is distance measurement request, to initiate a uncontrolled handoff procedure.
Step 602, candidate target base station is obtained the sign of serving BS from distance measurement request, near the type of the station list judgement serving BS having had according to this candidate target base station, and according to switchover policy, carry out switching type and control.
If candidate target base station is macro base station, needn't judge the type of serving BS, do not need to carry out switching type yet and control, directly perform step 603; If candidate target base station is base station from home, judge described in the type of synchronization rapid 404 of serving BS, repeat no more herein.
After having confirmed the type of serving BS, candidate target base station (base station from home) is carried out switching type and is controlled, and specific implementation, with step 404, repeats no more herein.But, different from step 404, if judge the switching of candidate target base station support current type, perform step 603; If judgement candidate target base station is not supported the switching of current type, redirect execution step 608, and by send failed ranging response to mobile terminal, refusal mobile terminal is carried out the switching of current type, refuses the handover request of mobile terminal.
Step 603, candidate target base station sends context information request to serving BS, in order to ask the sign of anchor point authentication device and the information such as sign of anchor point IAD of this mobile terminal, also carries the sign of this candidate target base station simultaneously.
Step 604, serving BS obtains the sign of candidate target base station from context information request, and near the station list having had according to this serving BS judges the type of this candidate target base station, and according to switchover policy, carries out switching type and control.
If serving BS is macro base station, needn't judge the type of serving BS, do not need to carry out switching type yet and control, and directly perform step 605; If candidate target base station is base station from home, judge described in the type of synchronization rapid 404 of serving BS, repeat no more herein.
After having confirmed the type of candidate target base station, serving BS (base station from home) is carried out switching type and is controlled, and specifically processes with step 402, repeats no more herein.
It is to be noted, serving BS does not support mobile terminal to carry out the switching of current type, serving BS returns to candidate target base station the contextual information response of failure, it does not support the switching of this type to inform candidate target base station, then redirect execution step 608, candidate target base station is returned to the ranging response of failure to mobile terminal, the handover request of refusal mobile terminal; If serving BS supports mobile terminal to carry out the switching of current type, perform step 605.
Step 605, serving BS returns to contextual information response to candidate target base station.
When serving BS is supported the switching of current type, to candidate target base station, return to successful contextual information response, carry the sign of anchor point authentication device and the sign of anchor point IAD, for subsequent step 606 and 607 Execution context information interactions and data channel application when pre-established.
Step 606 to the processing of step 607 with step 405 to step 406, repeat no more herein.
Step 608, target BS sends ranging response message to terminal, accepts or refuse the handover request of terminal.
Candidate target base station sends ranging response to mobile terminal, to inform that mobile terminal is accepted or the handover request of refusal mobile terminal.
It is to be noted, the situation of the handover request of candidate target base station refusal mobile terminal is a kind of in addition: when candidate target base station and serving BS are all supported the switching of current type, and after step 607, candidate target base station also needs to judge whether it meets all default preconditions, if do not meet wherein any one, to mobile terminal, return to the ranging response of failure, the handover request of refusal mobile terminal; If met, to mobile terminal, return to successful ranging response, accept the handover request of mobile terminal.
Step 609, when candidate target base station is accepted the handover request of mobile terminal, carries out the handover operation of subsequent movement terminal from serving BS to target BS.
In above-mentioned several embodiment, be all first according near the macrocell base stations list of obtaining, to judge the other side's type by serving BS and corresponding target BS, then carry out that switching type controls.In actual applications, may there is following situation: Current Serving BTS (base station from home) only allows mobile terminal between one or several specific base station from home of its periphery, to switch (as Current Serving BTS and this one or several specific base station from home belong to a user), now, can be near Current Serving BTS in station list, for macro base station attribute on above-mentioned specific base station from home mark, or use other default marks, in order to point out Current Serving BTS when carrying out switching type control, above-mentioned specific base station from home is processed as macro base station.
It is pointed out that and in the cited embodiment of the present invention, only emphasized that base station from home need to carry out switching type of the present invention and control, and hypothesis macro base station is not carried out this operation.In actual application, the demand based on operator, the present invention is the switchover policy of base station from home customization, and base station from home obtain near the method for station list be also applicable to macro base station.
Now, operator can be that macro base station configures corresponding switchover policy by configuration server or the entity such as policy control server or network management system or self-organizing network server of network side, the method that equally also can adopt bitmap to represent, the concrete switchover policy that is applicable to macro base station, as support/do not supported mobile terminal to be switched to base station from home (now, this macro base station is as serving BS) from current macro base station; Support/do not support mobile terminal to be switched to current macro base station (now, this macro base station is as target BS) from base station from home; Support/do not support that mobile terminal switches between current macro base station and other macro base stations.
Similarly, macro base station also can obtain near the above-mentioned station list of the present invention from network side entity.
Be based upon the switchover policy of macro base station customization, and near the station list that obtains of macro base station, switching type control method of the present invention is also applicable to macro base station.
In order to realize above-mentioned control method, the invention provides a kind of switching type control system of base station from home, as shown in Figure 7, comprising: dispensing unit 10, the first base stations 20 and the second base station 30, wherein,
Dispensing unit 10, is used to the first base station 20 and the second base station 30 configuration switchover policy;
The first base station 20, for obtaining the sign of the second base station 30, and confirms the type of the second base station 30 according near the station list that obtains; Also, for type and switchover policy according to the second base station 30, carry out switching type and control; And to the second base station 30, provide the sign of self;
The second base station 30, for obtaining the sign of the first base station 20, and confirms the type of the first base station 20 according near the station list that obtains; Also, for type and switchover policy according to the first base station 20, carry out switching type and control.
When the first base station 20 is target BS, the second base station 30 is serving BS; When the first base station 20 is serving BS, the second base station 30 is target BS;
Serving BS provides the base station of service for current for mobile terminal; Target BS is the base station that mobile terminal will be cut;
The type information of the first base station 20 or the second base station 30 comprises: base station from home and macro base station.
This system further comprises mobile terminal 40 and network side entity 50;
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.
Claims (14)
1. a switching type control method for base station from home, is characterized in that, is the first base station and the second base station configuration switchover policy, and the method also comprises:
Described the first base station obtains the sign of described the second base station, and according near the station list obtaining, confirms the type of described the second base station; Described the first base station, according to type and the described switchover policy of described the second base station, is carried out switching type and is controlled;
Described the first base station offers described the second base station by the sign of self;
The sign of described the second described the first base station of foundation, base station and near the station list obtaining are confirmed the type of described the first base station; Described the second base station, according to type and the described switchover policy of described the first base station, is carried out switching type and is controlled;
The type information of described the first base station or the second base station comprises: base station from home and macro base station;
Described switchover policy is current base station support or the switching type do not supported, comprising:
Support or do not support that mobile terminal is switched to macro base station from base station from home;
And/or support or do not support that mobile terminal is switched to base station from home from macro base station;
And/or support or do not support that mobile terminal switches between base station from home;
And/or support or do not support mobile terminal to be switched to another base station from home from current base station from home;
And/or support or do not support mobile terminal to be switched to current base station from home from another base station from home;
Wherein, be described the first base station and the second base station configuration switchover policy, be specially: for described the first base station and the second base station configure respectively corresponding switchover policy, and by network side entity, described switchover policy is sent to described the first base station or the second base station.
2. the switching type control method of base station from home according to claim 1, is characterized in that, when described the first base station is target BS, described the second base station is serving BS; When described the first base station is serving BS, described the second base station is target BS;
Described serving BS provides the base station of service for current for mobile terminal; Described target BS is the base station that mobile terminal will be cut.
3. the switching type control method of base station from home according to claim 1, is characterized in that, described the first base station is serving BS, and when the second base station is target BS, described the first base station obtains the sign of the second base station, is specially:
When mobile terminal is initiated handover request, to described the first base station, send mobile request, carry the sign of described the second base station of being determined by mobile terminal in described mobile request, described the first base station obtains the sign of described the second base station;
Or when serving BS is initiated the handover request of mobile terminal, described the first base station selected base station of closing on is as described the second base station, described the first base station obtains the sign of described the second base station;
Described the first base station is target BS, and when described the second base station is serving BS, described the first base station obtains the sign of the second base station, is specially:
When mobile terminal is initiated handover request, to described the first base station, send distance measurement request, carry the sign of described the second base station in described distance measurement request, described the first base station obtains the sign of described the second base station.
4. the switching type control method of base station from home according to claim 3, is characterized in that, the type of the second base station is confirmed in the first base station, or described the second base station confirms the type of the first base station, is specially:
When near described, station list is near macro base station list,
Described the first base station is judged when the sign of described the second base station is present near macro base station list, is confirmed that described the second base station is macro base station; Otherwise, confirm that described the second base station is base station from home;
Described the second base station is judged when the sign of described the first base station is present near macro base station list, is confirmed that described the first base station is macro base station; Otherwise, confirm that described the first base station is base station from home;
When near described, station list is near base station from home list,
Described the first base station is judged when the sign of described the second base station is present near base station from home list, is confirmed that described the second base station is base station from home; Otherwise, confirm that described the second base station is macro base station;
Described the second base station is judged when the sign of described the first base station is present near base station from home list, is confirmed that described the first base station is base station from home; Otherwise, confirm that described the first base station is macro base station;
When near described, station list is near macro base station list and near base station from home list,
Described the first base station judges that the sign of described the second base station is present near macro base station list or near base station from home list, if near macro base station list being present in confirms that described the second base station is macro base station; If near base station from home list being present in, confirms that described the second base station is base station from home;
Described the second base station judges that the sign of described the first base station is present near macro base station list or near base station from home list, if near macro base station list being present in confirms that described the first base station is macro base station; If near base station from home list being present in, confirms that described the first base station is base station from home.
5. the switching type control method of base station from home according to claim 4, is characterized in that, described the first base station is serving BS, and when the second base station is target BS, described the first base station is carried out switching type and controlled, and is specially:
Described the first base station, according to type and the described switchover policy of described the second base station, while judging the switching of supporting current type, sends and prepares handover request to described the second base station; The first base station offers described the second base station by described preparation handover request by the sign of self;
Judge while not supporting the switching of current type, store the sign of described the second base station described the first base station candidate target base station list from self, delete.
6. the switching type control method of base station from home according to claim 5, is characterized in that, described the second base station is carried out switching type and controlled, and is specially:
The switching of supporting current type, according to type and the described switchover policy of described the first base station, is judged in described the second base station, and when judgement meets default precondition, judges the handover request of accepting described mobile terminal; Judge while not supporting the switching of current type, judge the handover request of the described mobile terminal of refusal.
7. the switching type control method of base station from home according to claim 6, is characterized in that, when the handover request of accepting described mobile terminal is judged in the second base station, the method further comprises: to described the first base station, return to successful preparation switching request response; The second base station that switching request response is successfully prepared using described transmission in described the first base station is as potential target base station, and asks response or mobile notice to inform mobile terminal by movement; Mobile terminal is carried out the switching from described the first base station to the second base station according to described potential target base station;
When the handover request of the described mobile terminal of refusal is judged in the second base station, the method further comprises: preparation switching request response from failure to described the first base station that return to.
8. the switching type control method of base station from home according to claim 4, is characterized in that, described the first base station is target BS, and when the second base station is serving BS, described the first base station is carried out switching type and controlled, and is specially:
Described the first base station, according to type and the described switchover policy of described the second base station, while judging the switching of supporting current type, sends context information request to described the second base station; The first base station, by described context information request, offers described the second base station by the sign of self;
Judge while not supporting the switching of current type, to described mobile terminal, send failed ranging response, the handover request of refusal mobile terminal.
9. the switching type control method of base station from home according to claim 8, is characterized in that, described the second base station is carried out switching type and controlled, and is specially:
Successful contextual information response, according to type and the described switchover policy of described the first base station, while judging the switching of supporting current type, is returned to described the first base station in the second base station;
Judge while not supporting the switching of current type, to described the first base station, return to the contextual information response of failure.
10. the switching type control method of base station from home according to claim 9, is characterized in that, when successful contextual information response is returned in described the second base station, the method further comprises:
When described the first base station is confirmed to meet default precondition, to described mobile terminal, return to successful ranging response, described mobile terminal is carried out described the second base station to the switching of the first base station; When described the first base station is confirmed not meet default precondition, to described mobile terminal, return to the ranging response of failure, refuse the handover request of described mobile terminal;
When the contextual information response of failure is returned in described the second base station, the method further comprises: the ranging response of failure is returned in described the first base station to described mobile terminal, refuses the handover request of described mobile terminal.
11. according to the switching type control method of base station from home described in claim 7 or 10, it is characterized in that, described the first base station or the second base station obtain near station list, be specially: network side entity sends to described the first base station or the second base station by the sign of near the macro base station described the first base station or the second base station and/or base station from home with the form of list, obtain described near macro base station list and/or near base station from home list;
Or, described network side entity is in the adjacent base station list issuing to described the first base station or the second base station, by corresponding sign, indicate macro base station and/or the base station from home in described adjacent base station list, using near the part adjacent base station list of described macro base station macro base station list described, using near the part adjacent base station list of described base station from home base station from home list described.
The switching type control system of 12. 1 kinds of base station from home, is characterized in that, this system comprises: dispensing unit, and the first base station and the second base station, wherein,
Described dispensing unit, is used to described the first base station and the second base station configuration switchover policy;
Described the first base station, for obtaining the sign of described the second base station, and confirms the type of described the second base station according near the station list that obtains; Also, for type and described switchover policy according to described the second base station, carry out switching type and control; Also for the sign of self is provided to described the second base station;
Described the second base station, for obtaining the sign of described the first base station, and confirms the type of described the first base station according near the station list that obtains; Also, for type and described switchover policy according to described the first base station, carry out switching type and control;
The type information of described the first base station or the second base station comprises: base station from home and macro base station;
Described switchover policy is current base station support or the switching type do not supported, comprising:
Support or do not support that mobile terminal is switched to macro base station from base station from home;
And/or support or do not support that mobile terminal is switched to base station from home from macro base station;
And/or support or do not support that mobile terminal switches between base station from home;
And/or support or do not support mobile terminal to be switched to another base station from home from current base station from home;
And/or support or do not support mobile terminal to be switched to current base station from home from another base station from home;
Wherein, be described the first base station and the second base station configuration switchover policy, be specially: for described the first base station and the second base station configure respectively corresponding switchover policy, and by network side entity, described switchover policy is sent to described the first base station or the second base station.
13. according to the switching type control system of base station from home described in claim 12, it is characterized in that, when described the first base station is target BS, described the second base station is serving BS; When described the first base station is serving BS, described the second base station is target BS;
Described serving BS provides the base station of service for current for mobile terminal; Described target BS is the base station that mobile terminal will be cut.
14. according to the switching type control system of base station from home described in claim 12 or 13, it is characterized in that, this system further comprises mobile terminal and network side entity;
Described mobile terminal, controls for the switching type of carrying out according to the first base station and the second base station, carries out the switching to the second base station or from the second base station to the first base station from the first base station;
Described network side entity, for to described the first base station or the second base station provide described near station list.
Priority Applications (2)
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| CN200910091981.4A CN102006632B (en) | 2009-09-03 | 2009-09-03 | Method and system for controlling switching types of home base station |
| PCT/CN2010/076465 WO2011026413A1 (en) | 2009-09-03 | 2010-08-30 | Method and system for controlling handover type of home node b |
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| CN200910091981.4A CN102006632B (en) | 2009-09-03 | 2009-09-03 | Method and system for controlling switching types of home base station |
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| CN102833805A (en) * | 2011-06-16 | 2012-12-19 | 中兴通讯股份有限公司 | Method, system and equipment for determining switching type of HeNB (Home enhanced Node) |
| CN103781135B (en) * | 2012-10-22 | 2017-08-08 | 国基电子（上海）有限公司 | Handover control system and method for handover control between base station from home |
| CN103945498B (en) * | 2013-01-21 | 2018-02-27 | 上海诺基亚贝尔股份有限公司 | The method for being used to find for user equipment and select access network in heterogeneous network |
| CN106028365A (en) * | 2015-03-20 | 2016-10-12 | 中兴通讯股份有限公司 | Base station configuration method and device |
| CN107734567A (en) * | 2016-08-10 | 2018-02-23 | 大唐移动通信设备有限公司 | A kind of adjacent area kind identification method and system |
| CN111294879B (en) * | 2017-03-29 | 2022-04-01 | 安科讯(福建)科技有限公司 | Method and system for configuring neighbor cell before cell switching |
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