CN100459600C - Method and system of access of internet interlock - Google Patents
Method and system of access of internet interlock Download PDFInfo
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Abstract
The system comprises a first access network and a second access network, both support different protocol respectively. A gateway base station control unit is located in the first access network and is used for supporting more than one protocol. Wherein one of supported protocols is the protocol supported by the first access network, and the other one is the one supported by the second access network. The gateway base station control unit in the first access network is connected to the base station control unit in the second access network to implement the intercommunication between the access networks supporting different protocol.
Description
Technical field
The present invention relates to the communications field, be meant a kind of method and system of access of internet interlock especially.
Background technology
Global system for mobile communications (UMTS, Universal Mobile TelecommunicatiohsSystem) be that wireless technology adopts Wideband Code Division Multiple Access (WCDMA) to insert (WCDMA, Wideband CodeDivision Multiple Access) 3-G (Generation Three mobile communication system) of technology also is called UMTS the WCDMA communication system usually.
Fig. 1 shows the UMTS system configuration schematic diagram of third generation partner program (3GPP) definition, as shown in Figure 1, in the R99/R4/R5 standard, UMTS comprises 3 parts: core network (CN, Core Network), UMTS Terrestrial radio access network network (UMTS Territorial Radio AccessNetwork) and subscriber equipment (UE, User Equipment), wherein, CN is used to handle the calling of all circuit-switched services in the UTMS and the data of packet switching service are connected, and the exchange of realization and external network and routing function, UTRAN is used to handle all and wireless relevant function, and UE provides the business that can experience to the mobile subscriber.Linking to each other by the Iu interface between CN and the UTRAN, is the Uu interface between UTRAN and the UE.CN logically comprises the circuit commutative field (CSDomain of the treatment circuit reciprocal exchange of business, Circuit Switched Domain), handle the packet-switched domain (PSDomain of packet switching service, Packet Switched Domain) and broadcasting (BC, Broadcast) territory of handling cell broadcaste service.
UTRAN comprises one or several RNS (RNS, Radio NetworkSubsystem), and a RNS is made up of a radio network controller (RNC, Radio NetworkController) and one or more NodeB.Link to each other by the Iu interface between RNC and the CN, link to each other by Iub interface between NodeB and the RNC.In UTRAN inside, link to each other by the Iur interface between the RNC, the Iur interface can be realized by the connection of the direct physical between the RNC or by transmission network.RNC distributes and to be attached thereto with control or the Radio Resource of relevant NodeB, and NodeB finishes the data transaction between Iub interface and the Uu interface, and the while also participates in the part RRM.
It between UTRAN and the UE Uu interface, Fig. 2 shows the Uu interface protocol structural representation of 3GPP definition, as shown in Figure 2, in the R99/R4/R5 standard, UTRAN side Uu interface protocol is distributed on RNC and the NodeB, RNC realizes Radio Resource control (RRC, Radio ResourceControl) agreement, packet data polymerized agreement (PDCP, Packet Data Convergence Protocol), broadcast/multi broadcast control (BMC, Broadcast/Multicast Control) agreement, Radio Link control (RLC, Radio Link Control) agreement and medium access control (MAC, Medium AccessControl) agreement, NodeB mainly realizes physical (L1).RRC manages Radio Resource and distributes, and the parameter of configuration lower-layer protocols is also controlled its behavior, and lower-layer protocols is meant PDCP agreement, BMC agreement, rlc protocol, MAC agreement and L1 agreement.PDCP finishes the compression of grouped data IP head and handles, and when lossless migration the sequence number of service data; BMC realizes scheduling and control to cell broadcast messages; RLC carries out Segmentation and Reassembly to data, and the repeating transmission and the buffer memory of the following data of affirmation mode (AM); The mapping of MAC completion logic channel road transmission channel, according to traffic performance with the data multiplex of Different Logic channel to identical transmission channel; The major function of L1 is spread spectrum, modulation, chnnel coding and despreading, demodulation, channel-decoding, and L1 can also realize functions such as mutual conversions between baseband signal and the radiofrequency signal.
Still there are a lot of problems in the UTRAN structure that defines in the R99/R4/R5 standard of 3GPP, for example, Frame Protocol (the FP of Iub interface/Iur interface, Frame Protocol) strict regularly and cause the Internet resources of UTRAN can't realize statistic multiplexing synchronously, and then can not fully adapt to the development of non-real-time service; The L2 of Uu interface and L1 lay respectively at RNC and NodeB, cause propagation delay time on the transmission path to increase and the retransmission delay time increase of RLC, thereby have influenced the service quality (QoS) of high-speed data service; Because physical layer message among the RNC configuration NodeB and the round-trip delay that produces on Iub interface be to the influence that brings synchronously of UE and NodeB, or the like.
In the UTRAN structure that defines in the R99/R4 standard of 3GPP, the transport network layer of Iu interface/Iur interface/Iub interface adopts asynchronous transfer mode (ATM, Asynchronous Transfer Mode) transmit, transmission network can adopt the IP transmission in the UTRAN structure that defines in the R5 standard of 3GPP.Because the business based on packet switching is more and more, and the maturation day by day of IP technology, therefore, on the basis of full IP bearing network, make up Radio Access Network (RAN, Radio Access Network) be inexorable trend, this RAN that makes up on the full IP bearing network is called as IPRAN.
Fig. 3 shows wherein a kind of IPRAN structural representation, as shown in Figure 3, compare with the UTRAN structure that defines in the R99/R4 standard, CN remains unchanged, CN and radio network netgate (RNG, Radio Network Gateway) the Iu interface between remains unchanged, and the Iur interface between the UTRAN structure that defines in RNG and the R99/R4/R5 standard remains unchanged, and the L2 agreement/L3 agreement of Uu interface is displaced downwardly to NodeB+; User's face of Iu interface by CN through RNG to NodeB+.The entire I u interface is divided into radio physical layer and transport network layer, RAN application protocol (RANAP, RANApplication Protocol) is the application protocol that belongs to wireless network layer, but interactive messages need be sent by SCCP (SCCP) agreement of transport network layer between the RANAP, SCCP provides connection and does not have the dual mode of connection, like this, the part message of RANAP uses the SCCP that connection is arranged to send, all the other message use connectionless SCCP to send, for RNG and NodeB+, RNG handles connectionless RANAP, and NodeB+ handles the RANAP that connection is arranged.RNG inserts the IAD of IPRAN simultaneously as the UTRAN that defines in the R99/R4/R5 standard, there is the Iur interface between RNG and the NodeB+, when the Iur soft handover takes place in the UTRAN that defines in IPRAN and the R99/R4/R5 standard, the data of soft handover branches arrive NodeB+ through RNG among the UTRAN, carry out grand diversity and merge in NodeB+.
All interconnect between ggsn (GGSN), service universal grouping wireless business supporting node (SGSN), RNG and the NodeB+ by IP network, therefore RNG can be established to the link of any one NodeB+, and can the NodeB+ that set up link with it be controlled, like this, the corresponding relation of multi-to-multi between RNG and the NodeB+, that is to say do not have attaching relation between NodeB+ and the RNG.
The overlay area of IPRAN and UTRAN has when overlapping, just needs to interconnect between IPRAN and the UTRAN, does not interrupt to guarantee the business that the user carries out when mobile between IPRAN and UTRAN.According to IPRAN structure shown in Figure 3, the RNC interconnection among RNG and the UTRAN is to provide Iur interface soft handover.Owing to do not have attaching relation between NodeB+ and the RNG, if the Iur soft handover between realization IPRAN and the UTRAN, all RNG among the IPRAN just must interconnect with some RNC among all UTRAN, and these RNC are controlling the NodeB that administers UTRAN and IPRAN covering overlapping area.
Fig. 4 shows IPRAN and UTRAN interconnection schematic diagram in the prior art, and as shown in Figure 4, IPRAN is made up of m RNG and n NodeB+, and CN, RNG and NodeB+ are by the interconnection of IP transmission network; UTRAN is made up of q RNC and y NodeB, and CN, RNC and NodeB are by the interconnection of ATM transmission network; IPRAN and UTRAN can insert same CN, wherein, the covering overlapping area that NodeB+1～NodeB+k and NodeB 1～NodeB i administer IPRAN and UTRAN respectively, here the not necessarily continuous geographical position of said covering overlapping area only is meant between IPRAN and the UTRAN summation of common overlay area.
Owing to do not have attaching relation between NodeB+ and the RNG, therefore, any one RNG can be used as the service RNG of UE, realize the Iur soft handover between IPRAN and the UTRAN, all RNG among the IPRAN just must interconnect with all RNC of the NodeB of control administration covering overlapping area among the UTRAN, contrast Fig. 4, being RNG 1～RNG m need interconnect with RNC 1～RNC p.IPRAN described above can insert different CN with UTRAN, can belong to same Public Land Mobile Network network (PLMN, Public Land Mobile Network), also can belong to different PLMN.
The UTRAN that defines in the R99/R4 standard of 3GPP is based on the Access Network of ATM transmission, though the UTRAN that defines in the R5 standard can adopt the IP transmission network as bearer network, but the UTRAN that defines in the R5 standard is in real network is built, consider with the R99/R4 standard in the compatibility of the UTRAN that defines, need to continue to adopt ATM.If RNG and the RNC interconnection of supporting ATM, RNG just must support ATM and two kinds of protocol stacks of IP, and this will increase the cost of RNG.
This shows, realize the Iur soft handover between IPRAN and the UTRAN, just must make all RNG all support ATM and two kinds of protocol stacks of IP, and all RNG among the IPRAN must interconnect with all RNC of the NodeB of control administration covering overlapping area among the UTRAN, this will cause all RNG among the IPRAN all must support the Iur interface, increase the complexity of RNG; All RNG among the IPRAN support ATM and two kinds of protocol stacks of IP, make the construction cost of IPRAN significantly increase.
Summary of the invention
In view of this, one object of the present invention is to provide a kind of method of access of internet interlock, another object of the present invention is to provide a kind of system of access of internet interlock, the interconnection between the access network of realization support different agreement, with the simplified apparatus function, reduce network construction cost.
In order to achieve the above object, the invention provides a kind of method of access of internet interlock, support first access network and second access network of different agreement to interconnect, this method comprises: the gateway base station control unit is set in first access network and only supports the wireless universal network gateway RNG of the agreement that first access network is supported, this gateway base station control unit is supported more than one agreements, wherein a kind of agreement is the agreement that first access network is supported, wherein another kind of agreement is the agreement that second access network is supported, the base station control unit interconnection in this gateway base station control unit and second access network.
Described first access network is for supporting IP protocol of I PRAN, described second access network is for supporting the UTRAN of ATM agreement, described gateway base station control unit is for supporting IP and ATM protocol of I ur gateway RNG, this Iur gateway RNG administration is arranged in the NodeB+ of IPRAN and UTRAN covering overlapping area, and the base station control unit in described second access network is for supporting the RNC of ATM agreement.
Described RNC is arranged in the RNC of UTRAN and IPRAN covering overlapping area NodeB for administration.
General RNG among the IPRAN only supports IP.
This method further comprises when steps A 1:UE initially inserts IPRAN, is positioned at the NodeB+ coverage of IPRAN and UTRAN covering overlapping area, and this NodeB+ selects the service RNG of Iur gateway RNG as UE.
Further comprise after the described steps A 1: UE sets up professional; After UE foundation business, if UE moves to the UTRAN direction, then the NodeB of administration UE current region and corresponding RNC and Iur gateway RNG carry out Iur soft handover between IPRAN and the UTRAN among the UTRAN.
If UE NodeB+ coverage direction of non-IPRAN and UTRAN covering overlapping area in IPRAN moves, the gateway of UE is migrated to general RNG by Iur gateway RNG.
When if UE initially inserts IPRAN, and work as the NodeB+ coverage that UE is positioned at non-IPRAN and UTRAN covering overlapping area, this method further comprises: A2, this NodeB+ select the service RNG of general RNG as UE.
Further comprise after the described steps A 2: UE sets up professional; After UE foundation business, if UE moves to IPRAN and UTRAN covering overlapping area direction, be positioned at the NodeB+ coverage of IPRAN and UTRAN covering overlapping area, this method also comprises:
B, the service RNG of UE is switched to Iur gateway RNG by RNG described in the steps A 2.
If further move to the UTRAN direction from IPRAN and UTRAN covering overlapping area, also comprise after the described step B: the NodeB of the current region of administration UE and corresponding RNC and Iur gateway RNG carry out the Iur soft handover between IPRAN and the UTRAN among the UTRAN.
This method further comprises steps A 3: if that the initial access of UE is UTRAN, after UE foundation business, move to the IPRAN direction, then the NodeB of administration UE current region and corresponding RNC and Iur gateway RNG carry out Iur soft handover between IPRAN and the UTRAN among the UTRAN.
The present invention also provides a kind of system of access of internet interlock, this system comprises: support first access network and second access network of different agreement, comprise the gateway base station control unit in first access network and only support the wireless universal network gateway RNG of the agreement of first access network support;
Be arranged in the gateway base station control unit of first access network, be used to support more than one agreements, wherein a kind of agreement is the agreement that first access network is supported, wherein another kind of agreement is the agreement that second access network is supported, and is used for interconnecting with the base station control unit of second access network.
Described first access network is for supporting IP protocol of I PRAN, described second access network is for supporting the UTRAN of ATM agreement, described gateway base station control unit is for supporting IP and ATM protocol of I ur gateway RNG, described Iur gateway RNG is used for administering the NodeB+ that is positioned at IPRAN and UTRAN covering overlapping area, and the base station control unit in described second access network is for supporting the RNC of ATM agreement.
Described RNC is arranged in the RNC of UTRAN and IPRAN covering overlapping area NodeB for administration.
General RNG among the described IPRAN only supports IP.
The scheme that proposes according to the present invention, support first access network and second access network of different agreement to interconnect, the gateway base station control unit of supporting more than one agreements is set in first access network, interconnect by this base station control unit and second access network, make the role of base station control unit more clear, the gateway base station control unit only is in charge of the covering overlapping area of two access networks, like this, can simplify the part base station control unit, make the function of corresponding base station control unit simpler, with the cost of reduction base station control unit, and avoid all base station control unit all to support more than one agreements, thereby reduce the construction cost of network.
Description of drawings
Fig. 1 shows the UMTS system configuration schematic diagram of 3GPP definition;
Fig. 2 shows the Uu interface protocol structural representation of 3GPP definition;
Fig. 3 shows wherein a kind of IPRAN structural representation;
Fig. 4 shows IPRAN and UTRAN interconnection schematic diagram in the prior art;
Fig. 5 shows IPRAN and UTRAN interconnection schematic diagram among the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Among the present invention, interconnect between first access network and second access network, and first access network and second access network are supported different agreement, the gateway base station control unit is set in first access network, this gateway base station control unit is supported more than one agreements, wherein a kind of agreement is the agreement that first access network is supported, another kind of agreement is the agreement that second access network is supported, this gateway base station control unit is administered the base station that is positioned at first access network and the second access network covering overlapping area in first access network, promptly the base station of administration first access network and the second access network covering overlapping area belongs to the gateway base station control unit that is provided with in first access network in first access network, base station control unit interconnection in this gateway base station control unit and second access network, base station control unit in described second access network can be all base station control unit in second access network, also may further be the base station control unit that is positioned at the base station of first access network and the second access network covering overlapping area in administration second access network.Other base station control unit in first access network can be described as the general base station control unit, can only support the agreement that first access network is supported.Can have attaching relation between base station in first access network or second access network and the base station control unit, also can not have attaching relation.Gateway base station control unit in the above first access network can be gateway base station controller (BSC), gateway RNC, gateway RNG etc., and the base station control unit in the above second access network can be BSC, RNC, RNG etc.Below with the example that is interconnected as of IPRAN and UTRAN, describe the present invention.
RNG among the IPRAN is divided into general RNG and Iur gateway RNG two classes, general RNG only supports the Iu interface, do not support the Iur interface, be that general RNG only supports IP stack, and Iur gateway RNG not only support the Iu interface, also supports the Iur interface, it is the dual stack that Iur gateway RNG supports IP and ATM, can realize the conversion between IP and the ATM,, and then realize the access of IPRAN to UTRAN with the interconnection of realization with the RNC that transmits based on ATM.When IPRAN does not interconnect with UTRAN, can not use Iur gateway RNG among the IPRAN, all RNG are general RNG; When IPRAN and UTRAN interconnection, use at least one Iur gateway RNG, the interconnection of RNC among realization and the UTRAN, the quantity of Iur gateway RNG can be according to the capacity of RNG and the demand setting of real network construction.Some NodeB+ among the Iur gateway RNG administration IPRAN, these NodeB+ are the NodeB+ that is positioned at IPRAN and UTRAN covering overlapping area, the NodeB+ and the Iur gateway RNG that are positioned at non-IPRAN and UTRAN covering overlapping area do not have attaching relation.When IPRAN and UTRAN interconnection, the only Iur gateway RNG among the IPRAN and each RNC interconnection among the UTRAN, in addition, Iur gateway RNG among the IPRAN also can be only with UTRAN in administration be positioned at the RNC interconnection of the NodeB of UTRAN and IPRAN covering overlapping area, Iur gateway RNG and RNC can pass through the Iur interface and interconnect.When IPRAN does not interconnect with UTRAN, can not use Iur gateway RNG among the IPRAN, but all use general RNG.
When if UE initially inserts IPRAN, be positioned at the NodeB+ coverage of IPRAN and UTRAN covering overlapping area, then corresponding NodeB+ will select the service RNG of its Iur gateway RNG that belongs to as UE; When if UE initially inserts IPRAN, covering overlapping area between non-IPRAN and UTRAN, then corresponding NodeB+ will select the service RNG of a general RNG as UE arbitrarily, also can select the service RNG of a general RNG as UE according to certain algorithm.When UE carries out the Iur soft handover of IPRAN to UTRAN,, then at first need the service RNG of UE is migrated to Iur gateway RNG, and then carry out the Iur soft handover if the service RNG of UE is not Iur gateway RNG.
Fig. 5 shows IPRAN and UTRAN interconnection schematic diagram among the present invention, and as shown in Figure 5, IPRAN and UTRAN are linked into same CN.IPRAN is by general RNG, Iur gateway RNG, NodeB+m and NodeB+n form, CN, general RNG, between the NodeB+ or CN, Iur gateway RNG, interconnect by the IP transmission network between the NodeB+, wherein, NodeB+n is the NodeB+ that is positioned at IPRAN and UTRAN covering overlapping area, NodeB+m is the NodeB+ that is positioned at non-IPRAN and UTRAN covering overlapping area, NodeB+n logically belongs to Iur gateway RNG, do not have attaching relation between NodeB+m and general RNG or the Iur gateway RNG, general RNG and Iur gateway RNG can administer NodeB+m and NodeB+n jointly, only when the Iur soft handover was carried out in IPRAN and UTRAN interconnection, NodeB+n was only administered by Iur gateway RNG.UTRAN is made up of RNC, NodeBx and NodeB y, interconnect by the ATM transmission network between CN, RNC and the NodeB, wherein, NodeB x is the NodeB that is positioned at UTRAN and IPRAN covering overlapping area, NodeB y is the NodeB that is positioned at non-UTRAN and IPRAN covering overlapping area, and NodeB x and NodeB y belong to RNC; Can comprise also among the UTRAN that other are positioned at the NodeB of non-UTRAN and IPRAN covering overlapping area, and the RNC that administers these NodeB.When IPRAN and UTRAN interconnection, only Iur gateway RNG among the IPRAN and the RNC among UTRAN interconnection, Iur gateway RNG can only be positioned at the RNC interconnection of the NodeB of IPRAN and UTRAN covering overlapping area with administration, also can interconnect with all RNC among the UTRAN.
Among Fig. 5, general RNG shown in the IPRAN represents all the general RNG among the IPRAN, shown Iur gateway RNG represents all the Iur gateway RNG among the IPRAN, shown NodeB+m represents that all are positioned at all NodeB+ of non-IPRAN and UTRAN covering overlapping area among the IPRAN, and shown NodeB+n represents that all are positioned at all NodeB+ of IPRAN and UTRAN covering overlapping area among the IPRAN; On behalf of all administrations among the UTRAN, the RNC shown in the UTRAN be positioned at the RNC of the NodeB of UTRAN and IPRAN covering overlapping area, on behalf of all, the NodeB that on behalf of all, shown NodeB x be positioned at UTRAN and IPRAN covering overlapping area, NodeB y be positioned at the NodeB of non-UTRAN and IPRAN covering overlapping area.
UE is positioned at the covering overlapping area of IPRAN and UTRAN when initially inserting IPRAN, UE initially inserts IPRAN by the NodeB+n that is positioned at covering overlapping area among the IPRAN, because NodeB+n logically belongs to Iur gateway RNG, therefore, NodeB+n can select the service RNG of Iur gateway RNG as UE, after the UE foundation business, business datum arrives Iur gateway RNG by NodeB+n via the IP transmission network, and then arrives CN by Iur gateway RNG via the IP transmission network.After the UE foundation business, because of moving to UTRAN the Iur soft handover taking place, sets up Radio Link for UE in NodeB x.Concrete Iur soft switching process is existing known handling process, and for example, NodeB+n sends Radio Link via Iur gateway RNG, RNC to NodeB x and sets up request; After NodeB x received that Radio Link is set up request, for UE distributes a wireless channel, UE inserted this wireless channel, and like this, NodeB x has just set up Radio Link with UE; Then, the wireless signal from UE that will receive of NodeB x is sent to NodeB+n via RNC, Iur gateway RNG; NodeB+n will receive carries out grand diversity from the wireless signal of UE and wireless signal from the UE of NodeB x and merges (MDC) operation, so that the wireless signal strength of the UE that NodeB+n receives is improved; NodeB+n sends the wireless signal data of the UE that has carried out the MDC operation to CN via Iur gateway RNG; CN carries out respective handling to the data of receiving.
UE is positioned at the covering overlapping area of non-IPRAN and UTRAN when initially inserting IPRAN, UE initially inserts IPRAN by the NodeB+m that is positioned at non-covering overlapping area among the IPRAN, because NodeB+m neither belongs to Iur gateway RNG, do not belong to general RNG yet, therefore NodeB+m can select the service RNG of a RNG as UE arbitrarily, both can select the service RNG of general RNG as UE, also can select the service RNG of Iur gateway RNG as UE, the service RNG of the preferential general RNG of selection of the NodeB+ that is positioned at non-covering overlapping area as UE can be set, NodeB+m selects the service RNG of general RNG as UE in the present embodiment, after the UE foundation business, business datum arrives general RNG by NodeB+m via the IP transmission network, and then arrives CN by general RNG via the IP transmission network.When UE moves to other NodeB+ in the IPRAN coverage, can only carry out the soft handover between NodeB+, and service RNG remains unchanged.
After the UE foundation business, move to the UTRAN direction, and move to the NodeB+n of IPRAN and UTRAN covering overlapping area, if the service RNG of UE is general RNG, and do not trigger the Iur soft handover between IPRAN and the UTRAN, can have two kinds of processing modes this moment: a kind of processing mode is to serve the RNG migration, and a kind of processing mode is not carry out serving the RNG migration.The processing mode of carrying out the RNG migration is meant that the service RNG with UE migrates to Iur gateway RNG by general RNG; After finishing the RNG migration, Iur gateway RNG is as the service RNG of UE, and the business datum after the migration arrives Iur gateway RNG by NodeB+n via the IP transmission network, and then arrives CN by Iur gateway RNG via the IP transmission network; After the RNG migration, if the Iur soft handover between triggering IPRAN and the UTRAN then continues to carry out the Iur soft handoff procedure.The processing mode of not carrying out the RNG migration is meant the current RNG migration of not carrying out, only when the Iur soft handover between triggering IPRAN and the UTRAN, just at first the service RNG of UE is migrated to Iur gateway RNG by general RNG, and then carry out the Iur soft handover between IPRAN and UTRAN.The transition process of service RNG does not repeat them here for existing known handling process.
In addition, owing to do not have attaching relation between NodeB+ among the IPRAN and the general RNG, when therefore UE inserts IPRAN by the NodeB+n that is positioned at covering overlapping area, NodeB+n also can select the service RNG of general RNG as UE, like this, when the Iur soft handover that triggers between IPRAN and the UTRAN, can be at first the service RNG of UE be migrated to Iur gateway RNG by general RNG, and then carry out the Iur soft handover between IPRAN and UTRAN.
When UE is moved by IPRAN and UTRAN covering overlapping area non-IPRAN and UTRAN covering overlapping area in IPRAN, and UE has set up business at this moment, the NodeB+n that no matter before had been positioned at IPRAN and UTRAN covering overlapping area is that the service RNG that UE selects is Iur gateway RNG or general RNG, then current migration of serving RNG, select the service RNG of any general RNG as UE, also can not serve the migration of RNG, keep the service RNG of UE constant.
UE is positioned at the covering overlapping area of UTRAN and IPRAN when initially inserting UTRAN, UE initially inserts UTRAN by the NodeB x that is positioned at covering overlapping area among the UTRAN, after the UE foundation business, business datum arrives RNC by NodeB x via the ATM transmission network, and then arrives CN by RNC via the ATM transmission network.After the UE foundation business, move to the IPRAN direction, when carrying out the Iur soft handover between UTRAN and the IPRAN, for UE sets up Radio Link, and set up the business datum path of RNC to NodeB+n in NodeB+n, grand diversity union operation can be finished in RNC.
According to above description as seen, equally gateway RNC can be set in UTRAN, this gateway RNC supports the dual stack of ATM and IP, can realize the conversion between ATM and the IP, with the interconnection of realization with the RNG that transmits based on IP, and then realizes the access of UTRAN to IPRAN.
Each implementation procedure of the present invention described above can be applicable to the interconnection between the access network of various support different agreements, above-described base station control unit can be BSC, RNC, RNG etc., implementation procedure separately and above description are identical substantially, do not repeat them here.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (14)
1, a kind of method of access of internet interlock, support first access network and second access network of different agreement to interconnect, this method comprises: the gateway base station control unit is set in first access network and only supports the wireless universal network gateway RNG of the agreement that first access network is supported, this gateway base station control unit is supported more than one agreements, wherein a kind of agreement is the agreement that first access network is supported, wherein another kind of agreement is the agreement that second access network is supported, the base station control unit interconnection in this gateway base station control unit and second access network.
2, method according to claim 1, it is characterized in that, described first access network is for supporting IP protocol of I PRAN, described second access network is for supporting the UTRAN of ATM agreement, described gateway base station control unit is for supporting IP and ATM protocol of I ur gateway RNG, this Iur gateway RNG administration is arranged in the NodeB+ of IPRAN and UTRAN covering overlapping area, and the base station control unit in described second access network is for supporting the RNC of ATM agreement.
3, method according to claim 2 is characterized in that, described RNC is arranged in the RNC of UTRAN and IPRAN covering overlapping area NodeB for administration.
According to claim 2 or 3 described methods, it is characterized in that 4, the general RNG among the IPRAN only supports IP.
5, method according to claim 4 is characterized in that, this method further comprises:
When A1, UE initially insert IPRAN, be positioned at the NodeB+ coverage of IPRAN and UTRAN covering overlapping area, this NodeB+ selects the service RNG of Iur gateway RNG as UE.
6, method according to claim 5 is characterized in that, further comprise after the described steps A 1: UE sets up professional;
After UE foundation business, if UE moves to the UTRAN direction, then the NodeB of administration UE current region and corresponding RNC and Iur gateway RNG carry out Iur soft handover between IPRAN and the UTRAN among the UTRAN;
If the NodeB+ coverage direction of non-IPRAN and UTRAN covering overlapping area moves in IPRAN, the gateway of UE is migrated to general RNG by Iur gateway RNG.
7, method according to claim 4 is characterized in that,
If UE initially inserts IPRAN, and work as the NodeB+ coverage that UE is positioned at non-IPRAN and UTRAN covering overlapping area, this method further comprises:
A2, this NodeB+ select the service RNG of general RNG as UE.
8, method according to claim 7 is characterized in that, further comprise after the described steps A 2: UE sets up professional;
After UE foundation business, if UE moves to IPRAN and UTRAN covering overlapping area direction, be positioned at the NodeB+ coverage of IPRAN and UTRAN covering overlapping area, this method also comprises:
B, the service RNG of UE is switched to Iur gateway RNG by RNG described in the steps A 2.
9, method according to claim 8, it is characterized in that, if UE further moves to the UTRAN direction from IPRAN and UTRAN covering overlapping area, also comprise after the described step B: the NodeB of the current region of administration UE and corresponding RNC and Iur gateway RNG carry out the Iur soft handover between IPRAN and the UTRAN among the UTRAN.
10, method according to claim 4 is characterized in that, this method further comprises:
That insert is UTRAN if A3 UE is initial, after UE foundation business, moves to the IPRAN direction, and then the NodeB of the current region of administration UE and corresponding RNC and Iur gateway RNG carry out Iur soft handover between IPRAN and the UTRAN among the UTRAN.
11, a kind of system of access of internet interlock, this system comprises: support first access network and second access network of different agreement, comprise the gateway base station control unit in first access network and only support the wireless universal network gateway RNG of the agreement of first access network support;
Be arranged in the gateway base station control unit of first access network, be used to support more than one agreements, wherein a kind of agreement is the agreement that first access network is supported, wherein another kind of agreement is the agreement that second access network is supported, and is used for interconnecting with the base station control unit of second access network.
12, system according to claim 11, it is characterized in that, described first access network is for supporting IP protocol of I PRAN, described second access network is for supporting the UTRAN of ATM agreement, described gateway base station control unit is for supporting IP and ATM protocol of I ur gateway RNG, described Iur gateway RNG is used for administering the NodeB+ that is positioned at IPRAN and UTRAN covering overlapping area, and the base station control unit in described second access network is for supporting the RNC of ATM agreement.
13, system according to claim 12 is characterized in that, described RNC is arranged in the RNC of UTRAN and IPRAN covering overlapping area NodeB for administration.
According to claim 12 or 13 described systems, it is characterized in that 14, the general RNG among the described IPRAN only supports IP.
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