CN101674615A - Method, device and system for switching between heterogeneous networks - Google Patents
Method, device and system for switching between heterogeneous networks Download PDFInfo
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Abstract
The invention discloses a method, a device and a system for switching between heterogeneous networks. Network side equipment of a 3GPP2 cell of the technical scheme of the invention can send switchingtype information to an access terminal, and then receives the switching from the 3GPP2 cell to a non-3GPP2 cell carried out by the access terminal according to the switching type information so thatthe access terminal can select a most proper switching type to be switched to the non-3GPP2 cell. In particular to real-time service and time delay sensitive service, the technical scheme of the invention is convenient for the access terminal to select the switching type for optimizing the switching in time to ensure that the access terminal can finish access authentication and authorization in advance and wireless specific negotiation and configuration processes of a target access system, thereby reducing the time delay of the switching, improving the performance and ensuring the continuity of the access terminal service.
Description
Technical field
The present invention relates to communication technical field, be specifically related to changing method, device and system between a kind of heterogeneous network.
Background technology
In recent years, along with 3G (Third Generation) Moblie partner program 2 (3GPP2:3
RdGenerationPartnership Project 2) development, 3G (Third Generation) Moblie partner program (3GPP:3
RdGeneration Partnership Project) between non-3GPP2 network such as network and the 3GPP2 network, promptly the problem of the wireless access technology intercommunication between the heterogeneous network also more and more receives publicity.Intercommunication between this heterogeneous network, have wireless two the receipts under two situations of sending out abilities accessing terminal, mobility protocol by network layer just can satisfy the requirement of real time business to performance of handoffs, if do not have wireless two two abilities of sending out of receiving but access terminal, because goal systems access authentication and mandate, and the wireless specific negotiation of goal systems, layoutprocedure, time delay for switching is with long, so only relying on the mobility protocol of network layer to realize the intercommunication of heterogeneous network, is can not satisfy real time business and delay sensitive business to the requirement of performance of handoffs.
The 3GPP network of prior art will switch can be divided into two classes, and the first kind is not switched for having to optimize, and second class is switched for optimizing.Optimize to switch and just to fulfil access authentication and mandate when also being positioned at former network ahead of schedule accessing terminal, and the wireless specific negotiation of target access system, layoutprocedure, to reduce time delay for switching, improve performance, otherwise, do not have to optimize switch and just can only after withdrawing from former network, just carry out access authentication and mandate, and the wireless specific negotiation of goal systems, layoutprocedure are to log on objective network.Strategy according to operator, the 3GPP network can pass through transmitting system message on the air interface of 3GPP sub-district, perhaps in measuring configuration messages, notify to access terminal and adopt the switching of which kind of type by parameter, for example this parameter is put 1 expression and should be adopted the optimization switching, put 0 expression and should adopt non-optimized switchover, need when switching into the 3GPP2 network, the 3GPP network just can adopt its switching type that receives to switch when accessing terminal.
In research and practice process to prior art, the present inventor finds, for the single-shot list receive access terminal for, need be when the 3GPP2 network switches into other non-3GPP2 network such as 3GPP network when accessing terminal, be can't receive that the 3GPP sub-district sends about the information that adopts which kind of switching type, and do not send any in the 3GPP2 sub-district about switching to the information which kind of switching type non-3GPP2 networks such as 3GPP network should adopt yet.Because the flow process of different switching types has difference in time, can not in time get access to the information of switching type if therefore access terminal, just can not trigger switching flow on suitable opportunity, thereby the continuity that inserts terminal traffic, particularly real time business and delay sensitive business is caused bigger influence.
Summary of the invention
The embodiment of the invention provides changing method, device and the system between a kind of heterogeneous network.When purpose is to make on the air interface that resides in the 3GPP2 sub-district that accesses terminal that the single-shot list receives, can in time get access to switching type information, so that select only switching type to switch in the non-3GPP2 network, to guarantee the professional continuity that accesses terminal, satisfy the requirement of real time business and delay sensitive business to performance of handoffs.
Changing method between a kind of heterogeneous network comprises:
Send switching type information to accessing terminal;
The switching that acceptance accesses terminal and carries out according to described switching type information from the 3GPP2 sub-district to non-3GPP2 sub-district.
The network equipment of a kind of 3GPP2 sub-district comprises transmitting element and processing unit;
Described transmitting element is used to send switching type information to accessing terminal;
Described processing unit, the switching that the switching type information that sends according to described transmitting element of being used to accept to access terminal is carried out, the described switching that switches to from the 3GPP2 sub-district to non-3GPP2 sub-district.
A kind of communication system, comprise the 3GPP2 sub-district network equipment and access terminal;
The network equipment of described 3GPP2 sub-district is used to send switching type information to accessing terminal, and the switching from the 3GPP2 sub-district to non-3GPP2 sub-district that accesses terminal and carry out according to described switching type information;
Described accessing terminal is used to receive the switching type information that the network equipment of 3GPP2 sub-district sends, and carries out switching from the 3GPP2 sub-district to non-3GPP2 sub-district according to described switching type information then.
Accessing terminal of the embodiment of the invention can be obtained switching type information from the network equipment of 3GPP2 sub-district, and then switch according to described switching type information, can select only switching type to switch in the non-3GPP2 network thereby making accesses terminal, particularly for real time business and delay sensitive business, be convenient to it and in time select to optimize the switching type that switches, make it can fulfil access authentication and mandate ahead of schedule, and the wireless specific negotiation of target access system, layoutprocedure, reduce the time-delay of switching, improve performance, guaranteed the professional continuity that accesses terminal.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the method flow diagram of the embodiment one that provides of the embodiment of the invention;
Fig. 2 is the method flow diagram of the embodiment two that provides of the embodiment of the invention;
Fig. 3 is the structural representation of the network equipment of the 3GPP2 sub-district that provides of the embodiment of the invention five;
Fig. 4 is the structural representation of the network equipment of the 3GPP2 sub-district that provides of the embodiment of the invention six;
Fig. 5 is the structural representation of the communication system that provides of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention provides the changing method between a kind of heterogeneous network.The embodiment of the invention also provides corresponding device thereof and system.Below be elaborated respectively.
Embodiment one,
Below will technical scheme provided by the invention be described from the angle that accesses terminal.
Changing method between a kind of heterogeneous network, access terminal and receive the switching type information that sends in the network equipment of this 3GPP2 sub-district, broadcast control message such as the air interface transmission that receives this 3GPP2 sub-district, carry switching type information in this broadcast control message, and then carry out switching from the 3GPP2 sub-district to non-3GPP2 sub-district according to the switching type information that this receives.Described 3GPP2 sub-district refers to the current 3GPP2 sub-district of serving, and non-3GPP2 sub-district can be the 3GPP sub-district.
Wherein, switching type information can be optimize to switch or do not have to optimize to switch, optimize to switch and can just fulfil access authentication and mandate ahead of schedule when also being positioned at the 3GPP2 sub-district accessing terminal, and the wireless specific negotiation of target access system, layoutprocedure; Do not have to optimize and switch then for optimizing switching, promptly when needs enter into another network, need to withdraw from from the 3GPP2 sub-district earlier, and then triggering switching flow, carry out access authentication and mandate, and the wireless specific negotiation of target access system, layoutprocedure or the like are to log on non-3GPP2 sub-districts such as 3GPP sub-district.Also just say, optimize to switch and when carrying out business operation, to carry out the preceding Signalling exchange of some switchings, ready in advance for switching subsequently, so that reduce the time-delay of switching, be applicable to real time business and delay sensitive business, but, this also will take certain signalling path space simultaneously, and for some non-real-time services with for the insensitive business of time delay, it is not necessary optimizing switching, therefore, there is not the value that optimization is switched also its existence; Which kind of business should adopt which kind of switching type about, perhaps which user can adopt the optimization switching type, specifically can depend on the strategy of operator.
As shown in Figure 1, the idiographic flow of this embodiment can be as follows:
101, the switching type information that the network equipment that receives this 3GPP2 sub-district sends that accesses terminal;
102, access terminal and carry out switching from the 3GPP2 sub-district to non-3GPP2 sub-district according to received switching type information.
As from the foregoing, accessing terminal of the embodiment of the invention can be known switching type information from the network equipment of this 3GPP2 sub-district, and then switch according to described switching type information, can select only switching type to switch in the non-3GPP2 network thereby making accesses terminal, particularly for real time business and delay sensitive business, be convenient to it and in time select to optimize the switching type that switches, make it can fulfil access authentication and mandate ahead of schedule, and the wireless specific negotiation of target access system, layoutprocedure, reduce the time-delay of switching, improve performance, guaranteed the professional continuity that accesses terminal.
Embodiment two,
Below will technical scheme provided by the invention be described from the angle of the network equipment of 3GPP2 sub-district.
Changing method between a kind of heterogeneous network, the network equipment of 3GPP2 sub-district send switching type information to accessing terminal, and the switching from the 3GPP2 sub-district to non-3GPP2 sub-district that accesses terminal and carry out according to described switching type information.Described switching type information can be to optimize to switch or do not have to optimize to switch.Wherein, can send switching type information to accessing terminal by the mode of broadcasting or clean culture.
As shown in Figure 2, the idiographic flow of this embodiment is as follows:
201, the network equipment of 3GPP2 sub-district sends switching type information to accessing terminal;
202, the switching that accesses terminal and carry out from the 3GPP2 sub-district to non-3GPP2 sub-district according to described switching type information.
As from the foregoing, can send switching type information to accessing terminal in the network equipment of the 3GPP2 sub-district of the embodiment of the invention, for example by in broadcast control message, carrying switching type information, and be broadcast to accessing terminal in this 3GPP2 sub-district, thereby make in the time of to switch on the non-3GPP2 sub-district from the 3GPP2 sub-district when accessing terminal, can select only switching type to switch in the non-3GPP2 network, particularly for real time business and delay sensitive business, be convenient to it and in time select to optimize the switching type that switches, make it can fulfil access authentication and mandate ahead of schedule, and the wireless specific negotiation of target access system, layoutprocedure, reduce the time-delay of switching, improve performance, guaranteed the professional continuity that accesses terminal.
Embodiment three,
In order to be illustrated more clearly in technical scheme of the present invention, will be that the 3GPP network is that example is described in further detail below with non-3GPP2 network.
According to the described method of the foregoing description, wherein, network equipment in the 3GPP2 sub-district sends switching type information to before accessing terminal, can also comprise the switching type information of obtaining, specifically can obtain its adjacent 3GPP sub-district on every side, be the switching type information that the adjacent sub-district of 3GPP is supported, and then the switching type information that described 3GPP sub-district is supported sent to access terminal; To be that example elaborates below in broadcast control message, to carry the switching type information of being supported the adjacent sub-district of 3GPP.
At first, in the broadcast control message that can send at the air interface of existing 3GPP2 sub-district, with adjacent on every side 3GPP sub-district is granularity, add the information of the switching type that adjacent 3GPP sub-district is supported around this 3GPP2 sub-district, for example whether support all to access terminal and be optimized the information of switching or non-optimized switchover, as shown in Table 1, can define a switchers field, whether called after " comprises 3GPP cell information on every side ", the length of this switchers field can be decided to be 1 bit, and when this switchers field put 0, expression did not comprise 3GPP cell information on every side, when this switchers field put 1, expression comprised 3GPP cell information on every side.
Table one:
| Field name | Length (bit) | Implication |
| Whether comprise 3GPP cell information on every side | 1 | Switchers field puts 0 or 1. |
When switchers field puts 1, the expression field of 3GPP sub-district number on every side appears in the broadcast control message, for example, can be with this field called after " 3GPP sub-district number on every side ", length can be decided to be 3 bits, otherwise, if switchers field was put 0 o'clock, then the length with the field of this called after " 3GPP sub-district number on every side " is decided to be 0 bit, and promptly the field of this called after " 3GPP sub-district number on every side " does not occur; Can be referring to table two.
Table two:
| Field name | Length (bit) | Implication |
| 3GPP sub-district number on every side | 0 or 3 | When switchers field puts 1, this field occurs and length is 3 bits; When switchers field puts 0, it is that length is 0 that this field does not occur. |
If comprise 3GPP cell information on every side, promptly when switchers field puts 1, then occur expression 3GPP sub-district in the broadcast control message and whether support to optimize the field of switching, this field comprises the identifier of expression 3GPP sub-district and supports to optimize switching two parts, such as, can distinguish called after " identifier of 3GPP sub-district " and " support to optimize and switch ", referring to table three.
Wherein, the length of " identifier of 3GPP sub-district " field can be 8 or 28 bits, and this depends on the definition in the 3GPP network, otherwise when the value of switchers field was 0, this field did not occur, and promptly the length of this field is 0 bit.
The length of " support optimization is switched " field then is 1 bit, and this field is put 1 expression and adopted optimization to switch, and puts 0 expression and adopts non-optimized switchover; Otherwise, put 0 when switchers field, this field does not occur, and promptly the length of this field is 0 bit.
In addition, it should be noted that the number of the 3GPP sub-district on every side of the demonstration in the number of times that " identifier of 3GPP sub-district " and the field whether this 3GPP sub-district of expression " is supported to optimize and switched " occur and the field of called after " 3GPP sub-district number on every side " is consistent.
Table three:
| Field name | Length (bit) | Implication |
| The identifier of 3GPP sub-district | 0 or, 8 or 28 (depending on the definition in the 3GPP network) | When switchers field puts 1, this field occurs, and puts 0 when switchers field, and this field does not occur. |
| Support to optimize and switch | 0 or 1 | When switchers field puts 1, this field occurs, and puts 1 expression and adopt to optimize and switch, and puts 0 expression and adopts non-optimized switchover; Put 0 when switchers field, this field does not occur. |
Certainly, itself insignificant reserved field can also be arranged, length is a uncertain value, is used to mend 0 message-length mended into whole byte.Referring to table four.
Table four:
| Field name | Length (bit) | Implication |
| Reserved field | Undetermined | Be used to mend 0 message-length mended into whole byte, itself is meaningless. |
Secondly, the network equipment of 3GPP2 sub-district sends this switching type information by the broadcast control message of this 3GPP2 sub-district.
At last, all adopt the switching type of indicating this message to switch what take place subsequently when the 3GPP2 network switches the 3GPP network after accessing terminal under free time or the connection status receives this message; For example, if adjacent 3GPP sub-district is to support to access terminal to be optimized switching around this this 3GPP2 sub-district of switching type information representation that receives, then access terminal when using real time business, just can adopt the mode of optimizing switching to enter the 3GPP network, thereby guarantee the continuity of real time business from the 3GPP2 network.
It should be noted that, information in table one, table two, table three and the table four is except improving existing message, be added on then in the broadcast control message of 3GPP2 air interface transmission, Sector Parameter Message, access parameter messages or quick configuration messages are medium such as being carried at, can also be with this message as a piece of news that defines separately; In addition, sending in form, sending to accessing terminal under idle condition or the connection status by the broadcast control message that sends, also can use the mode of clean culture except the front is said.
As from the foregoing, whether the embodiment of the invention is supported all to access terminal by adjacent 3GPP sub-district around this 3GPP2 sub-district of interpolation in the broadcast control message of 3GPP2 sub-district and is optimized the information of switching or non-optimized switchover, adopt suitable manner then, mode such as broadcasting or clean culture sends to all accessing terminal under free time or connection status, need be when the 3GPP2 network switches into the 3GPP network when accessing terminal, then can adopt the switching type of indicating in this message to carry out, can select only switching type to switch in the 3GPP network thereby making accesses terminal, particularly for real time business and delay sensitive business, be convenient to it and in time select to optimize the switching type that switches, make it can fulfil access authentication and mandate ahead of schedule, and the wireless specific negotiation of target access system, layoutprocedure, reduce the time-delay of switching, improve performance, guaranteed the professional continuity that accesses terminal.
Embodiment four,
Certainly, in order to save the signaling process between 3GPP2 sub-district and the 3GPP sub-district, strategy according to operator, adjacent 3GPP sub-district is all supported around can presetting this 3GPP2 sub-district earlier, and all switching types that this 3GPP2 sub-district is supported have been opened, promptly so long as the switching type of this 3GPP2 cell selecting, adjacent on every side 3GPP sub-district can be supported; Afterwards, the network equipment of this 3GPP2 sub-district just only need obtain the switching type information that this 3GPP2 sub-district is supported, the i.e. adoptable switching type when switch the 3GPP sub-district that accesses terminal of all in this 3GPP2 sub-district, which kind of business should adopt which kind of switching type as for, can decide according to the strategy of operator; After the network equipment of 3GPP2 sub-district gets access to the switching type information of being supported this 3GPP2 sub-district, send this switching type information to accessing terminal, at last, in the time of need switching into the 3GPP sub-district from the 3GPP2 sub-district when accessing terminal, can switch according to this switching type information that receives; Below will be that example elaborates in broadcast control message, to add the switching type information that be supported this 3GPP2 sub-district.
At first, in the broadcast control message that the air interface of existing 3GPP2 sub-district sends, with this 3GPP2 sub-district, be that the current 3GPP2 sub-district of serving is a granularity, add the switching type information that this 3GPP2 sub-district is supported, promptly add all the adoptable switching types when the 3GPP network is gone in switching that access terminal in this 3GPP2 sub-district, such as definition one switchers field, whether called after " comprises and switches the switching type of going into the 3GPP sub-district ", field length is 1 bit, can be referring to table five, when switchers field put 0, expression did not comprise the switching type information of going into the 3GPP sub-district of switching, otherwise, when switchers field put 1, then expression included the switching type information of going into the 3GPP sub-district of switching.
Table five:
| Field name | Length (bit) | Implication |
| Whether comprise the switching type information of going into the 3GPP sub-district of switching | 1 | Switchers field puts 0 or 1. |
When switchers field puts 1, an expression then further occurs and whether support to optimize the field of switching, than as shown in Table 6, whether this expression can be supported the field life of optimizing switching to be " support to optimize and switch ", length is 1 bit, this field is put 1 expression and is adopted optimization to switch, put 0 expression and adopt non-optimized switchover, certainly, when switchers field puts 0, this field does not occur, and promptly length is 0 bit.
Table six:
| Field name | Length (bit) | Implication |
| Support to optimize and switch | 0 or 1 | When switchers field puts 1, this field occurs, and puts 1 expression and adopt to optimize and switch, and puts 0 expression and adopts non-optimized switchover; Put 0 when switchers field, this field does not occur. |
Certainly, itself insignificant reserved field can also be arranged, length is a uncertain value, is used to mend 0 message-length mended into whole byte, referring to table seven.
Table seven:
| Field name | Length (bit) | Implication |
| Reserved field | Undetermined | Be used to mend 0 message-length mended into whole byte, itself is meaningless. |
Secondly, the network equipment of 3GPP2 sub-district sends this switching type information by the broadcast control message of this 3GPP2 sub-district.
At last, all adopt the switching type of indicating this message to switch what take place subsequently when the 3GPP2 network switches the 3GPP network after accessing terminal under free time or the connection status receives this message; For example, if accessing terminal can adopt to optimize when the 3GPP network is gone in switching, all in this this 3GPP2 sub-district of switching type information representation that receives switch, then access terminal when using real time business, just can adopt the mode of optimizing switching to enter the 3GPP network, thereby guarantee the continuity of real time business from the 3GPP2 network.
It should be noted that, information in table five, table six and the table seven is except improving existing message, be added on then in the broadcast control message that the air interface of 3GPP2 sub-district sends, Sector Parameter Message, access parameter messages or quick configuration messages are medium such as being carried at, can also be with this message as a piece of news that defines separately; In addition, sending in form, sending to accessing terminal under idle condition or the connection status by the broadcast control message that sends, also can use the mode of clean culture except the front is said.
As from the foregoing, the embodiment of the invention is by adding all the adoptable switching types when the 3GPP network is gone in switching that access terminal in this 3GPP2 sub-district in the broadcast control message of 3GPP2 sub-district, adopt suitable manner then, mode such as broadcasting or clean culture sends to all accessing terminal under free time or connection status, need be when the 3GPP2 network switches into the 3GPP network when accessing terminal, then can adopt the switching type of indicating in this message to carry out, can select only switching type to switch in the 3GPP network thereby making accesses terminal, particularly for real time business and delay sensitive business, be convenient to it and in time select to optimize the switching type that switches, make it can fulfil access authentication and mandate ahead of schedule, and the wireless specific negotiation of target access system, layoutprocedure, reduce the time-delay of switching, improve performance, guaranteed the professional continuity that accesses terminal.And, the network equipment of 3GPP2 of the present invention sub-district does not need to obtain the switching type information that adjacent 3GPP sub-district is supported around it, and only need obtain the switching type information that this 3GPP2 sub-district is supported, therefore can save the signaling process between 3GPP2 sub-district and the 3GPP sub-district, but, when adopting this scheme, need to guarantee the switching type of this 3GPP2 cell selecting, adjacent on every side 3GPP sub-district can be supported, so, which kind of mode the network equipment of 3GPP2 sub-district specifically adopts obtain switching type information, can select according to the strategy of concrete application scenarios or operator.
Embodiment five,
In order to implement above method better, the present invention also correspondingly provides a kind of 3GPP2 network equipment of sub-district, as shown in Figure 3, comprises transmitting element 301 and processing unit 302;
Described transmitting element 301 is used to send switching type information to accessing terminal;
Described processing unit 302, the switching that the switching type information that sends according to transmitting element 301 of being used to accept to access terminal is carried out, the described switching that switches to from the 3GPP2 sub-district to non-3GPP2 sub-district.
The network equipment of this 3GPP2 sub-district can also comprise first acquiring unit 303, is used to obtain the switching type information that adjacent non-3GPP2 sub-district is supported around this 3GPP2 sub-district.
Wherein, first acquiring unit 303 can obtain the switching type information that adjacent non-3GPP2 sub-district is supported around it, the switching type information supported of the non-3GPP2 sub-district that more described first acquiring unit 303 got access to of transmitting element 301 is passed through suitable manner then, send to such as broadcasting or the mode of clean culture and to access terminal, all are after accessing terminal under free time or the connection status receives this message, when switching non-3GPP2 network, the 3GPP2 network can adopt the switching type of indicating this message to switch what take place subsequently, at last, processing unit 302 the switching that accesses terminal and carry out from the 3GPP2 sub-district to non-3GPP2 sub-district.
It should be noted that, this switching type information is except improving existing message, be added on then in the broadcast control message that the air interface of 3GPP2 sub-district sends, Sector Parameter Message, access parameter messages or quick configuration messages are medium such as being carried at, can also be with this message as a piece of news that defines separately.Specifically can be referring to embodiment three.
As from the foregoing, adopt this scheme can select only switching type to switch in the 3GPP network so that access terminal, particularly for real time business, be convenient to it and in time select to optimize the switching type that switches, make it can fulfil access authentication and mandate ahead of schedule, and the wireless specific negotiation of target access system, layoutprocedure, the time-delay of switching reduced, improve performance, guaranteed the professional continuity that accesses terminal.
Embodiment six,
Certainly, in order to save the signaling process between 3GPP2 sub-district and the 3GPP sub-district, as shown in Figure 4, the network equipment of this 3GPP2 sub-district can also comprise second acquisition unit 304;
Described second acquisition unit 304 is used to obtain the switching type information that this 3GPP2 sub-district is supported.
Strategy according to operator, adjacent 3GPP sub-district is all supported around can presetting this 3GPP2 sub-district earlier, and opened all switching types that this 3GPP2 sub-district is supported, promptly so long as the switching type of this 3GPP2 cell selecting, adjacent on every side non-3GPP2 sub-district can be supported; Afterwards, second acquisition unit 304 obtains the switching type information that this 3GPP2 sub-district (being the current 3GPP2 sub-district of serving) is supported, the i.e. adoptable switching type when switch non-3GPP2 sub-district that accesses terminal of all in this 3GPP2 sub-district, which kind of business should adopt which kind of switching type as for, can decide according to the strategy of operator; The switching type information supported of transmitting element 301 this 3GPP2 sub-district that second acquisition unit 304 is got access to is passed through suitable manner then, send to such as broadcasting or the mode of clean culture and to access terminal, all are after accessing terminal under free time or the connection status receives this message, when switching non-3GPP2 network, the 3GPP2 network can adopt the switching type of indicating this message to switch what take place subsequently, at last, processing unit 302 the switching that accesses terminal and carry out from the 3GPP2 sub-district to non-3GPP2 sub-district.
It should be noted that, this switching type information is except improving existing message, be added on then in the broadcast control message that the air interface of 3GPP2 sub-district sends, Sector Parameter Message, access parameter messages or quick configuration messages are medium such as being carried at, also can be with this message as a piece of news that defines separately.Specifically can be referring to embodiment four.
As from the foregoing, adopt this scheme equally also can make to access terminal and to select only switching type, can guarantee the professional continuity that accesses terminal equally to switch in the non-3GPP2 network.And, with respect to embodiment five described schemes, the network equipment of the 3GPP2 sub-district of the embodiment of the invention does not need to obtain the switching type information that adjacent non-3GPP2 sub-district is supported around it, and only need obtain the switching type information that this 3GPP2 sub-district is supported, therefore can save the signaling process between 3GPP2 sub-district and the non-3GPP2 sub-district, but, when adopting this scheme, need to guarantee the switching type of this 3GPP2 cell selecting, adjacent on every side non-3GPP2 sub-district can be supported, so, which kind of mode the network equipment of 3GPP2 sub-district specifically adopts obtain switching type information, can select according to the strategy of concrete application scenarios or operator.
Embodiment six,
In order to implement above method better, the present invention also correspondingly provides a kind of communication system, as shown in Figure 5, comprises the network equipment 501 of 3GPP2 sub-district and accesses terminal 502;
The network equipment 501 of 3GPP2 sub-district is used to send switching type information to accessing terminal 502, and 502 switchings of carrying out according to described switching type information from the 3GPP2 sub-district to non-3GPP2 sub-district that access terminal;
Wherein, the network equipment 501 of 3GPP2 sub-district comprises transmitting element 301 and processing unit 302, can also comprise first acquiring unit 303 or second acquisition unit 304.
Wherein, the network equipment 501 of 3GPP2 sub-district can obtain the switching type information that adjacent non-3GPP2 sub-district is supported around the network equipment of 3GPP2 sub-district by first acquiring unit 303, transmitting element 301 can adopt suitable manner then, such as broadcasting or the mode of clean culture this switching type information is sent to and to access terminal 502, all under free time or the connection status access terminal 502 receive this message after, when switching non-3GPP2 network, the 3GPP2 network can adopt the switching type of indicating this message to switch what take place subsequently, at last, processing unit 302 501 the switchings of carrying out that access terminal from the 3GPP2 sub-district to non-3GPP2 sub-district.Wherein, this switching type information is except improving existing message, be added on then in the broadcast control message of 3GPP2 air interface transmission, Sector Parameter Message, access parameter messages or quick configuration messages are medium such as being carried at, can also be with this message as a piece of news that defines separately.Specifically can be referring to embodiment three.
Certainly, the network equipment 501 of 3GPP2 sub-district can also obtain the current 3GPP2 sub-district of serving by second acquisition unit, be the switching type information that this 3GPP2 sub-district is supported, transmitting element 302 adopts suitable manner then, such as the mode that adopts broadcasting or clean culture this switching type information is sent to and to access terminal 502,502 need when switching into non-3GPP2 network, the 3GPP2 network can switch when accessing terminal according to its switching type information that receives.In like manner, this switching type information is except improving existing message, be added on then in the broadcast control message of 3GPP2 air interface transmission, Sector Parameter Message, access parameter messages or quick configuration messages are medium such as being carried at, can also be with this message as a piece of news that defines separately.Specifically can be referring to embodiment four.
In a word, accessing terminal of the embodiment of the invention can be passed through suitable channel, such as obtaining the switching type information of going into non-3GPP2 network of switching by broadcast control message or the unicast messages that receives the 3GPP2 sub-district, switch such as optimizing to switch or do not have to optimize, and then carry out switching from the 3GPP2 network to non-3GPP2 network according to the switching type information that this gets access to, can select only switching type thereby making accesses terminal, trigger switching flow to switch in the non-3GPP2 network on suitable opportunity, particularly for real time business, be convenient to it and in time select to optimize the switching type that switches, make it fulfil access authentication and mandate ahead of schedule, and the wireless specific negotiation of target access system, layoutprocedure, to reduce the time-delay of switching, improve performance.Guaranteed the professional continuity that accesses terminal.
One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of the foregoing description is to instruct relevant hardware to finish by program, this program can be stored in the computer-readable recording medium, and storage medium can comprise: ROM, RAM, disk or CD etc.
More than changing method, Apparatus and system between a kind of heterogeneous network that the embodiment of the invention provided are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (12)
1, the changing method between a kind of heterogeneous network is characterized in that, comprising:
Send switching type information to accessing terminal;
The switching that acceptance accesses terminal and carries out according to described switching type information, the described switching that switches to from 3G (Third Generation) Moblie partner program 2 (3GPP2) sub-district to non-3GPP2 sub-district.
2, the changing method between the heterogeneous network according to claim 1 is characterized in that, described transmission switching type information also comprises to before accessing terminal:
Obtain the switching type information that adjacent non-3GPP2 sub-district is supported around this 3GPP2 sub-district;
Send the switching type information supported described non-3GPP2 sub-district to accessing terminal.
3, the changing method between the heterogeneous network according to claim 1 is characterized in that, described transmission switching type information also comprises to before accessing terminal:
Obtain the switching type information that this 3GPP2 sub-district is supported;
Send the switching type information supported described 3GPP2 sub-district to accessing terminal.
According to the changing method between each described heterogeneous network in the claim 1 to 3, it is characterized in that 4, described transmission switching type information is specially to accessing terminal:
Broadcast control message by the 3GPP2 sub-district sends switching type information to accessing terminal.
According to the changing method between each described heterogeneous network in the claim 1 to 3, it is characterized in that 5, described transmission switching type information is specially to accessing terminal:
Mode by clean culture sends switching type information to accessing terminal.
According to the changing method between each described heterogeneous network in the claim 1 to 3, it is characterized in that 6, described switching type information comprises optimizing to switch or do not have to optimize to be switched.
7, the network equipment of a kind of 3GPP2 sub-district is characterized in that, comprises transmitting element and processing unit;
Described transmitting element is used to send switching type information to accessing terminal;
Described processing unit, the switching that the switching type information that sends according to described transmitting element of being used to accept to access terminal is carried out, the described switching that switches to from the 3GPP2 sub-district to non-3GPP2 sub-district.
8, the network equipment of a kind of 3GPP2 according to claim 7 sub-district is characterized in that, also comprises first acquiring unit;
Described first acquiring unit is used to obtain the switching type information that adjacent non-3GPP2 sub-district is supported around this 3GPP2 sub-district.
9, the network equipment of a kind of 3GPP2 according to claim 7 sub-district is characterized in that, also comprises second acquisition unit;
Described second acquisition unit is used to obtain the switching type information that this 3GPP2 sub-district is supported.
10, a kind of communication system is characterized in that, comprise the 3GPP2 sub-district network equipment and access terminal;
The network equipment of described 3GPP2 sub-district is used to send switching type information to accessing terminal, and the switching from the 3GPP2 sub-district to non-3GPP2 sub-district that accesses terminal and carry out according to described switching type information;
Described accessing terminal is used to receive the switching type information that the network equipment of 3GPP2 sub-district sends, and carries out switching from the 3GPP2 sub-district to non-3GPP2 sub-district according to described switching type information then.
11, communication system according to claim 10 is characterized in that,
The network equipment of described 3GPP2 sub-district also is used to obtain the switching type information that adjacent non-3GPP2 sub-district is supported around this 3GPP2 sub-district, sends the switching type information supported described non-3GPP2 sub-district to accessing terminal.
12, communication system according to claim 11 is characterized in that,
The network equipment of described 3GPP2 sub-district also is used to obtain the switching type information that this 3GPP2 sub-district is supported, sends the switching type information supported described 3GPP2 sub-district to accessing terminal.
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