CN2762443Y - PLAN with RAN IP gateway for supporting voice on IP trasnmission layer - Google Patents

Abstract

The utility model provides a time division duplex wireless local area network (TDD-RLAN) which comprises a wire access network internet protocol (RAN IP) which can be connected to a public internet. The system can be used as a single system or be combined with a UMTS of a conventional core network, and the utility model is especially for the tracing in the core network and accomplishing AAA functions.

Description

The RLAN that has the RAN IP gateway of support voice on the IP transport layer

Technical field

The utility model relates to radio telecommunications system, relates in particular to being connected and communicating by letter of time division duplex-WLAN (wireless local area network) (TDD-RLAN) code division multiple access (CDMA) system and such system and internet.

Background technology

Radio telecommunications system is well known in the art.Wireless system requires the effective bandwidth that can work therein.Usually, obtain permission, be used for this specific geographical area with usable spectrum with a part of radio communication from the administrative department that will carry out the specific physical region of radio communication therein.Used effectively for the limited available band that is used in radio telecommunications system work, researched and developed code division multiple access (CDMA) system, it comprises provides a kind of structure very flexibly so that time division duplex (TDD) pattern of parallel radio communication service to be provided.The radio communication service of being supported can be to comprise any in the polytype of voice, fax and many other data communication services.

In order to provide worldwide connectivity to cdma system, the standard of having set up is also implemented.A current standard of generally using is exactly usually said global system for mobile communications (GSM).Be exactly so-called second generation mobile radio system standard (2G) and its revised edition (2.5G) after this.In these standards each all on existing standard increase characteristics and strengthening seeking improve.In January, 1998, ETSI-especially moves group (ESTI SMG) radio access scheme of the third generation wireless system that is used to be called as Universal Mobile Telecommunications System (UMTS) is reached an agreement.In order further to implement this UMTS standard, set up third generation collaborative project (3GPP) in November, 1998.3GPP continues to be devoted to general third generation mobile radio standard.

Showed a kind of typical UMTS system configuration among Fig. 1 and 2 according to current 3GPP standard.This UMTS network configuration comprises one via usually said IU interface and the interconnective core net of a UMTS Terrestrial radio access network (UTRAN) (CN), in current disclosed 3GPP authority file IU has been made specified in more detail.

UTRAN is configured to provide wireless telecommunication services by subscriber equipment (UE) for the user via usually said Uu wave point.UTRAN comprises the base station, is commonly referred to Node B in 3GPP, and they cover for the radio communication with UE provides geographical jointly.In UTRAN, one or more groups Node B is called Iub in a 3GPP interface is connected to a radio network controller (RNC).UTRAN can have many group nodes B of the different RNCs of being connected to (two RNC have been shown in the example of describing) in Fig. 1.When a plurality of RNC is provided, carry out communication between RNC through the Iur interface in UTRAN.

A common UE has one in order to the registration of carrying out this UE and ownership (home) the UMTS network (HN) of handling charging and other functions.By standardization Uu interface, UE can communicate by the different UMTS networks through for example serving different geographic regions.The so-called external network of other network (FN) in this case.

Under current 3GPP standard, the core net of the HN of a UE is used for coordinating and processing checking, mandate and computing function (aaa functionality).When outside the ownership UMTS network of a UE at it when mobile, the core net of HN uses an external network so that FN can allow UE to communicate by coordinating aaa functionality to make things convenient for UE.In order to assist to carry out this activity, core net comprises that is used for an attaching position register (HLR) and the Visited Location Registor (VLR) that HN follows the tracks of UE.Provide a home service (home service) server (HSS) to handle aaa functionality with HLR.

Under current 3GPP standard, core net, rather than UTRAN, be configured to have to external system for example Public Land Mobile Nerwork (PLMN), public switch telephone network (PSTN), Integrated Service Digital Network(ISDN) (ISDN) and other connectednesses through real-time (RT) of RT service interface service.Core net also will be supported the non real-time service with the internet.Core net can make the user use UE to communicate by letter via their ownership UMTS network outside the UTRAN coverage of HN to the exterior connectivity of other system.Outside the zone that UTRAN served of accessed UMTS, visit UE can similarly communicate via an accessed UMTM network.

Under current 3GPP standard, core net provides RT the exterior connectivity of service through GMSC (gateway mobile switching center) (GMSC).Core net provides the exterior connectivity of the NRT service that is called GPRS (GPRS) through a Gateway GPRS Support Node (GGSN).Hereinafter, owing to constitute the communication speed and relevant buffering of the TDD packet of communication, a kind of special NRT service seems in fact to be exactly a kind of real time communication for the user.Example is exactly the voice communication through the internet, seems to be exactly a common telephone call of being finished by switching network for the user, but this is actually and utilizes the Internet Protocol (IP) that packet data service is provided to connect to finish.

The standard interface that is called GI is used between the GGSN and internet of CN usually.The GI interface can and mobile Internet Protocol, for example the mobile IP v4 or the mobile IP v6 of internet engineering task group (IETF) regulation use together.

Under current 3GPP standard, for RT and the NRT service that the external source that is used for wireless connections UE in the 3GPP system provides support, UTRAN must reasonably be connected with CN, and the function of Here it is Iu interface.In order to accomplish this point, core net comprises that one is coupled to the mobile switching centre (MSC) of GMSC and the Serving GPRS Support Node (SGSN) that is coupled to GGSN.They all combine with HRL and MSC usually and Visited Location Registor (VLR) combine.

The Iu interface is divided into interface that is used for circuit-switched communications (Iu-CS) and the interface that is used for through packet switching communication (Iu-PS).MSC is connected on the RNC of UTRAN through Iu-CS interface.The Iu-PS interface of Serving GPRS Support Node (SGSN) through being used for packet data service is coupled to the RNC of UTRAN.

Typically through an interface that is called Gr and a core net by MAP (MAP) agreement support aaa functionality, the CS side of MSC and GMSC is connected HLR/HSS.The SGSN of CN uses usually said Gn to be connected with gp interface with GGSN.

Utilize the system of TDD-CDMA telecommunications for 3GPP system and other, some gsm system for example, their common ground is separation connective between aforesaid wireless network and the core net.Usually, radio net, i.e. UTRAN among the 3GPP communicates by letter with UE and core net is through RT that service is connected with external system and communicates by letter with NRT through a wave point.The structure that the applicant the has realized that this standardization type result that most likely aaa functionality is handled in the core net.Yet the applicant further recognizes, even plan keeps aaa functionality in the core net, and also can be by providing direct connectedness to obtain significant advantage and benefit to the internet from the TDD-CDMA wireless network.

Especially the applicant recognizes, the existing capability of the Iu interface (Iu-CS interface) of circuit switching (CS) communication that is used for service in real time of in 3GPP, stipulating, separate with the existing capability of the Iu interface (Iu-PS interface) of packet switching (CS) communication for service of in 3GPP, stipulating that is used for non real-time service, make the people that IP gateway can easily be provided in UTRAN, thereby make UTRAN be able to be directly connected to the internet corresponding to the use of the core net of this function by bypass.And, so the applicant recognizes, by allowing directly to be linked into the internet from UTRAN, constituted a kind of WLAN (wireless local area network), like this for using or not using core net that significant benefits and advantage can be provided.

The further details of typical 3GPP system is illustrated among Fig. 3.The UTRAN of conventional UMTS structure partly is divided into two service planes, promptly usually said control plane (C-plane) and user plane (U-plane).Control plane carrying control (signaling) business, and user-plane transmissions user data.The radio portion of UTRAN is drawn together two interfaces: the Uu interface between UE and Node B, and the Iub interface between Node B and the RNC.Explain that as top back end interface between RNC and core net refers to the Iu interface, it is divided into the Iu-PS that Iu-CS that the circuit switching that is used to enter MSC connects is connected with the packet switching that is used to enter SGSN.

Most important signaling protocol about UTRAN radio part is radio resource control (RRC), the distribution of connection, wireless channel and the physical resource of RRC management air interface.Among the 3GPP, the RRC signaling transmits between UE and RNC according to wireless connection control (RLC) and medium access control (MAC) UMTS agreement.Generally speaking, RNC is responsible for the distribution/recovery of radio resource and to for example management of key procedures such as connection management, paging and switching.On Iub interface, by using ATM Adaptation Layer 5 (ALL5) agreement on the ATM physical layer and the specific coordination function of using of for example service (SSCF) and serve the intermediate protocol of certain surface to connection protocol SSCOP etc. on AAL5, RRC/RLC/MAC message typically transmits on transport layer through ATM(Asynchronous Transfer Mode).

User plane data (for example voice, grouped data, circuit switched data) uses rlc/mac layer with the transmission reliably via air interface (between UE and RNC).On the Iub part, use atm adaptation layer 2 (AAL2) agreement of moving on the ATM physical layer (AAL2/ATMA) on UMTS-dedicated frame agreement, to produce these data flow (user data/RLC/MAC).

Iu interface bearing wireless access network applying portion agreement (RANAP).RANAP is enabled in UTRAN and goes up different radio radio resource management and the mobility program that takes place, and also is in charge of land carrying establishment of connection/release between RNC and SGSN/MSC simultaneously.RANAP is carried on the AAL5/ATM with middle signaling system 7 (SS7) agreement of using AAL5, this centre signaling system 7 (SS7) agreement for example has the SCCP that is applied on the ALL5, i.e. SSCF and the Message Transfer Part (SCCP/MTP) of service certain surface on connection protocol (SSCOP).Internet Protocol typically is used in the AAL5/ATM that is used for Iu-PS interface, so that SCTP (SCTP) in the middle of using on IP.When having a plurality of RNC in the UTRAN with Iur interface, IP also is common to ATM, and intermediate protocol comprises by SSCP, the SCTP of IETF development and the Message Transfer Part third level SCCP adaptation layer (M3UA) of SS7.

For user plane, between UTRAN and CN, circuit switched voice/transfer of data typically flows through on AAL5/ATM through Iu-CS interface between RNC and MSC.Run on the GPRS channel protocol (GTP) that is used for the Internet Protocol (UDP/IP) on the AAL5/ATM on the User Data Protocol, packet switched data transmits on the Iu-PS interface between RNC and the SGSN.

The applicant recognizes that this structure can improve by the direct IP connection that is provided for UTRAN.

The utility model content

The utility model provides the time division duplex-WLAN (TDD-RLAN) that comprises wireless access fidonetFido (RANIP) gateway that can be connected to public network.This system is used as an independent system or merges among the UMTS that uses conventional core net, in particular for follow the tracks of and realize aaa functionality in core net.

Described RLAN is that a plurality of subscriber equipmenies (UE) provide the parallel wireless telecommunication services between each UE and/or the internet.RLAN comprises at least one base station, and there is a transceiver that is used for carrying out in selected geographic area with UE time division duplex (TDD) code division multiple access (W-CDMA) radio communication this base station.RLAN also has at least one controller that is coupled to one group of base station, and this controller comprises the base station.This controller is controlled the communication of this group base station.A kind of new wireless access network Internet Protocol (RAN IP) gateway (RIP GW) and described controller coupling.The RAN IP gateway has gateway general packet radio service (GPRS) support node (GGSN) that has the access routing function that is connected with the internet.

Described RLAN can comprise a plurality of base stations, and each base station comprises that a transceiver that disposes the Uu interface is to carry out the radio communication of time division duplex UEUE (TDD) Wideband Code Division Multiple Access (WCDMA) (W-CDMA) with UE in selected geographic area.RLAN can also comprise a plurality of controllers, and each controller all is coupled to one group of base station.

Best, described RAN IP gateway have one with RLAN in the Serving GPRS Support Node (SGSN) of one or more controllers coupling.Best, described controller is according to the radio network controller of 3GPP standard (RNC).Best, described RNC uses one to have the connection of stack layering agreement and base station coupling than the low transmission layer that is configured to use Internet Protocol (IP).When RLAN had a plurality of RNC, RNC preferably used one to have and be configured to use the stack layering agreement than the low transmission layer of Internet Protocol (IP) to connect coupled to each other.

Disclose the multiple management method of mobile of use WLAN (wireless local area network) (RLAN), be used for when a relevant core net (CN) is supported checking, mandate and charging (AAA) function of UE, for a plurality of UE provide parallel wireless telecommunication services.RLAN carries out communicating by letter with the TDD-CDMA of each UE in the RLAN coverage.This RLAN has a RAN IP gateway, and this RAN IP gateway has to be connected and to be configured to the GPRS of internet aaa functionality information is sent to relevant CN.

In one approach, set up wireless connections to carry out subscriber data traffic between one the 2nd UE outside the UE in the RLAN coverage and this RLAN coverage.Use core net to realize being used for the aaa functionality of the described communication between described first and second UE.Use is connected with the GPRS of internet transmits the user data of communicating by letter between above-mentioned first and second UE.This method can comprise when the 2nd UE is mobile in export-oriented RLAN coverage, RLAN coverage, continues the radio communication between first and second UE, is connected with the GPRS internet in order to transmitting user data and disconnect using.This method comprises that further an above-mentioned UE or the 2nd UE move outside the RLAN coverage in the RLAN coverage, above-mentionedly be connected the radio communication that continues between first and second UE in order to transmitting user data with the GPRS internet by reusing.

In another approach, foundation is used to carry out the wireless connections of subscriber data traffic between UE in the RLAN coverage and the 2nd UE.Use core net to realize being used for the aaa functionality of communicating by letter between described first and second UE.When a UE or the 2nd UE in the RLAN coverage outside the RLAN coverage when mobile, is connected the user data of communicating by letter with the GPRS of internet by using with the transmission continuation.

Another kind of motion management method is provided, and wherein relevant CN supports the aaa functionality of ownership UE and the GPRS connection of RAN IP gateway to be configured to transmit aaa functionality information to core net by the internet.Between an ownership UE and one the 2nd UE, set up wireless connections, in order to carry out the communication of user data.By using to be connected aaa functionality information is sent to core net by the internet, uses this core net to finish aaa functionality in order to communicate by letter with the GPRS of internet.

When above-mentioned ownership UE or the 2nd UE inner or outside and when setting up wireless connections, just can utilize this method in the RLAN coverage.When one in the RLAN coverage and another outside the RLAN coverage time, be connected the user data that is used to transport communication between ownership and the 2nd UE with the GPRS of internet.

This method may further include as above-mentioned ownership and the 2nd UE one of them and moves and make the two all be in the RLAN coverage when outside or inner, then continue the radio communication between them, be connected with the GPRS internet and stop using in order to transmitting user data.This method may further include wherein this ownership or the 2nd UE moves, and makes one to be in the RLAN coverage and another is when being in outside the RLAN coverage, by using in order to transmitting user data the connection with the GPRS internet to continue to communicate by letter.

Aspect one of the present utility model, RLAN has as control device and is coupled to the one or more user planes and the control plane server of base station.User plane servers is configured to control the customer traffic of base station communication.The control plane server is configured to control the signaling that is used for base station communication.Best, the RAN IP gateway has a SGSN who is coupled to user plane servers and at least one control plane server.Best, have the stack layering agreement connection that is configured to use Internet Protocol (IP) by using one than the low transmission layer, user plane servers and control plane server are coupled to each other, and are coupled with base station and RAN IP gateway.

Alternatively, can have the voice gateways that are used for the outside pulse code modulation (pcm) port that connects for above-mentioned RLAN provides.These voice gateways are preferably by using one to have and be configured to use the agreement than the stack layering of low transmission layer of Internet Protocol (IP) to connect, with user plane and control plane server (or a RNC who uses RNC) coupling.

Of the present utility model aspect another, RLAN has radio network controller (RNC) and a RNC IP gateway one or more and the base station coupling, by using one to be configured to use the agreement that has than the stack layering of low transmission layer of Internet Protocol (IP) to connect, at least one RAN is coupled with this gateway through an Iu-PS.Best, have the stack layering agreement connection that is configured to use Internet Protocol (IP), RNC and base station coupling or coupled to each other by using one than the low transmission layer.Preferably each base station has one and is configured with the transceiver that is used for carrying out at the geographic area of choosing and UE the Uu interface of time division duplex (TDD) Wideband Code Division Multiple Access (WCDMA) (W-CDMA) radio communication, and the RAN IP gateway has a SGSN who is coupled with RNC.

Aspect another, RLAN supports the voice communication on the IP also a RAN IP gateway to be arranged of the present utility model, and this gateway has one and is used for the GGSN that is connected with the internet of transmission speech data.Described RLAN preferably is connected on the internet through Internet service provider (ISP), this ISP has one can use the known compression protocol conversion compressed voice data and the voice gateways of pulse code modulation (pcm) signaling, and this agreement can be also can not be that UE and RLAN communicate employed compress speech data type.

UE uses a compression protocol and RLAN uses the ISP of the voice gateways of different compression protocols conversion packed datas and pcm signaling to be connected on the internet through having one, and RLAN comprises that is used for a speech data transducer of changing between the packed data of two kinds of different compression protocols.Best, the RAN IP gateway comprises the speech data transducer, and this transducer for example is configured in AMR compressed voice data and G.729 changes between the compressed voice data.Described RLAN can be configured with user plane and control plane server or RNC, but preferably the interior total interface use of this RLAN has the stack layering agreement connection than the low transmission layer that is configured to use Internet Protocol (IP).

The utility model further provides a kind of communication network with one or more wireless networks, is used for supporting the CN of the aaa functionality of UE that parallel wireless telecommunication services are provided to a plurality of UE with relevant being used to, and this communication network is a home network.One or more wireless networks are the RLAN with RAN IP gateway, and this gateway has one to dispose the GGSN that is used for the GI interface that is connected with the internet and be configured to transmit aaa functionality information and give CN.Best, each RLAN has one or more base stations, and this base station has one and is configured with the transceiver that is used for carrying out at the geographic area of choosing and UE the Uu interface of W-CDMA radio communication.Best, RLAN has the controller that is coupled to the base station.Best, the RAN IP gateway of RLAN has a SGSN who is coupled on each self-controller.

Above-mentioned RLAN can be configured to not have direct CN to connect, and the RAN IP gateway is arranged to by internet connection transmission data carries out communicating by letter of aaa functionality information with CN.Selectively, this RAN IP gateway and CN coupling are used for through limited connection, for example support the radius/diameter or the MAP that connect to support to connect or conventional Iu-CS interface, or completely normal Iu interface, carry out the communication of aaa functionality information.

Best, above-mentioned RAN IP gateway has and is configured to the GGSN that is connected with the internet through the GI interface.Support that for moving the GI interface preferably is configured with mobile IP v4 or mobile IP v6.

As can be seen, other purposes of the present utility model and advantage are conspicuous for the skilled personnel in this area from following detailed and accompanying drawing.

Description of drawings

Fig. 1 is the schematic diagram according to the conventional UMTS network of current 3GPP standard.

Fig. 2 is the different parts of network shown in the presentation graphs and the block diagram of interface.

Fig. 3 is the schematic diagram of the general networks that illustrates among Fig. 1 and 2, has shown the layered stacks agreement of the different unit interfaces in signaling and user data plane.

Fig. 4 is the schematic diagram of the UMTS network of the RLAN that connects according to the direct internet of including of instructing of the utility model.

Fig. 5 is the block diagram of the different parts of expression network shown in Figure 4.

Fig. 6 is a kind of block diagram that changes scheme of expression network, and wherein RLAN directly is not connected with the UMTS core net.

Fig. 7 is the schematic diagram of the signaling data stream in the UMTS network shown in Figure 6.

Fig. 8 is second kind of schematic diagram that changes scheme of UMTS network shown in Figure 4, and wherein RLAN has the limited of the first kind to be connected with the UMTS core net.

Fig. 9 is second kind of schematic diagram that changes scheme of UMTS network illustrated in fig. 4, and wherein RLAN has the limited of second type to be connected with the UMTS core net.

Figure 10 A and 10B explanation are used for two kinds of variation schemes of the IP packet data streams of network shown in Fig. 4,8 and 9, wherein realize mobile IP v4 agreement by RLAN.

Figure 11 A and 11B explanation are used for two kinds of variation schemes of the IP packet data streams of network shown in Fig. 4,8 and 9, wherein realize mobile IP v6 agreement by RLAN.

Figure 12 is according to the preferred signaling plane among the RLAN of the utility model training centre structure and the schematic diagram of user plane interface.

Figure 13 is the schematic diagram of the RLAN with an independent radio network controller that instructs according to the utility model.

Figure 14 is the schematic diagram according to the RLAN with a plurality of radio network controllers of the utility model training centre structure.

But Figure 15 is the schematic diagram of a kind of arrangement of RLAN, and this RLAN has discrete server that is used for user data and control signaling and the optional voice gateways according to the utility model training centre structure.

Figure 16 is the parts block diagram of RLAN illustrated in fig. 15.

Figure 17 is the schematic diagram of a kind of preferred protocol stack of explanation, and this protocol stack is used for the control plane interface according to the RLAN of the utility model training centre structure.

Figure 18 is the schematic diagram of a kind of preferred protocol stack of explanation, and this protocol stack is used for the user plane interface according to the RLAN of the utility model training centre structure.

Figure 19,20, the 21st illustrates that three kinds of flow charts that change schemes of protocol stack of the interface in user plane, this protocol stack are used to be supported in the voice communication between UE (it has and the wireless connections of RLAN) and the ISP (it is connected to the RLAN with voice gateways).

Figure 22 is a kind of flow chart that change scheme of protocol stack of the interface of explanation in control plane, and this protocol stack is used to be supported in the voice communication between UE (it has and the wireless connections of RLAN) and the ISP (it is connected to the RLAN with voice gateways).

The acronym table

2G	The second generation
		2.5G	Second generation revised edition
3GPP	Third generation collaborative project
		Aaa functionality	Checking, mandate and computing function
AAL2	Atm adaptation layer 2
		AAL5	ATM Adaptation Layer 5
AMR	One type speech data compression
		ATM	Asynchronous transfer mode
CDMA	Code division multiple access
		CN	Core net
CODECs	Coder/decoder
		C-RNSs	The control RNS
CS	Circuit switching
		ETSI	ETSI
ETSI SMG	The special mobile communication of ETSI-group
		FA	The forward direction address
FN	External network
		G.729	A kind of speech data compression type
GGSN	Gateway GPRS Support Node
		GMM	GPRS Mobility Management
GMSC	GMSC (gateway mobile switching center)
		GPRS	GPRS
GSM	The mobile communication global system
		GTP	GPRS channel protocol (GPRS Tunneling Protocol)
GW	Gateway
		H.323/SIP	The H.323 form of (session initiated) agreement is initiated in session
HLR	Attaching position register
		HN	Home network (home network)

HSS	The home service server
		IP	Internet Protocol
ISDN	Integrated Service Digital Network(ISDN)
		ISP	Internet service provider
Iu-CS	The Iu sub-interface that is used for circuit switched service
		Iu-PS	The Iu sub-interface that is used for packet-switched services
IWU	Middle working cell
		M3UA	Message Transfer Part third level SCCP SS7 adaptation layer
MAC	The medium access control
		MAP	MAP
MSC	Mobile switching centre
		NRT	Non real-time
PCM	Pulse code modulation
		PLMN	Public Land Mobile Nerwork
PS	Packet switching
		PSTN	Public switch telephone network
RANAP	The wireless access network applying portion
		RAN IP	The wireless access network Internet Protocol
RIP GW	The RAN IP gateway
		RLAN	WLAN (wireless local area network)
RLC	Wireless connection control
		RNC	Radio network controller
RRC	Radio Resource control
		RT	In real time
SCCP/MTP	SCCP, message transfer part
		SGSN	Serving GPRS Support Node
SGTP	Stream Control Transmission Protocol
		SM	Session management
SMS	Short Message Service
		S-RNS	SRNS Serving Radio Network Subsystem
SS7	Signaling System 7(SS-7)
		SSCF	Serve specific coordination function
SSCOP	Serve specific connection oriented protocol
		TDD	Time division duplex
UDP/IP	The User Data Protocol of Internet Protocol
		UE	Subscriber equipment
UMTS	Universal Mobile Telecommunications System
		UTRAN	UMTS Terrestrial radio access network
VLR	Visited Location Registor

Embodiment

With reference to Fig. 4, show the general mobile land system of WLAN (wireless local area network) (RLAN) (UMTS) net that has the connection of direct internet that has of modification here.As shown in Figure 5, RLAN uses the wave point in base station to communicate by letter with different types of user devices (UE).Preferably this base station is the Node B type of stipulating among the 3GPP.One wireless controller is coupled to described base station controls this wave point.Preferably this wireless controller is the radio network controller of making according to the 3GPP standard (RNC).When in conventional 3GPP UTRAN, using, can adopt the various combination of Node B and RNC.In general, the RLAN base station geographic range of carrying out radio communication defines the service covering area of RLAN.

Unlike the UTRAN of routine, RLAN of the present utility model comprises a wireless access network Internet Protocol (RAN IP) gateway, and it is to providing connective outside the RLAN service covering area, promptly by carrying out the geographic area that radio communication is served with its base station.As illustrated in the Figure 4 and 5, the RAN IP gateway has direct internet to connect and can have by the direct UMTS network of the Iu interface and the standard of associated core net to be connected.Selectively,, can save the direct interface between associated core net and RAN IP gateway, make this RAN IP gateway can only have and be connected with the direct of internet as illustrated in fig. 6.In this case, as illustrated in fig. 7, by control and aaa functionality information are sent to as the core net that belongs to CN, RLAN of the present utility model still can constitute the part of UMTS.

Fig. 8 and 9 explanations are according to two independent alternatives of the RLAN of the utility model training centre structure, and wherein RAN IP disposes one and is used for setting up limited direct-connected control signal port with its ownership UMTS core net.Especially, this limited connectedness transmission information needed comes to provide the function support for CN AAA.

RAN IP gateway control signal port can be configured to, as illustrated in fig. 8, use provides control signal data based on the radius/diameter that inserts, in this case, core net comprises a middle working cell (IWU) as stipulating among the 3GPP, and it can be the aaa functionality information translation conventional MAP (MAP) signaling in order to be connected with the HSS/HLR of core net.Selectively, as illustrated in fig. 9, RAN IP gateway control signal port can be configured the subset as the standard Gr interface, and this interface is supported the MAP signaling that the HSS/HLR of CN directly uses.

Best, the RAN IP gateway is used one with the standard GI interface of internet and can be used as a core net with UMTS and use without any related autonomous system.Yet, for efficient roaming and the handed over service of the user UE that supports mobile management and RLAN, wish to have the aaa functionality that connects core net, for example by means of as Fig. 7,8 with the 9 different variation schemes that illustrate.In this case, RAN IP gateway that adds at RLAN and the standard GI interface between the internet just can be supported mobile IP protocol.The preferred example of this mobile IP protocol is exactly the mobile IP v4 agreement and the mobile IP v6 agreement of IETF regulation.

Figure 10 illustrated with a UE of RLAN wireless connections and the IP packet data streams of between the 2nd overseas UE of the wireless service areas of this RLAN, communicating by letter, wherein on the GI interface between RLAN IP gateway and the internet, use mobile IP v4.In this case, the user data that comes from a UE sends to address that two UE provide from the RAN IP gateway of RLAN by the internet with the IP packet format.The 2nd UE directly communicates by letter with the home address of a UE in core net, because in this example, a UE has the CN that belongs to CN as it.This CN receives IP packet of coming from the 2nd UE, and CN delivers to the current location of a UE to the IP grouping forward then, and this current location is kept among the HLR of this CN as the forward direction address (FA) of a UE.

In this example, because a UE is " ownership ", CN sends the IP grouping to be used for UE communication RAN IP gateway by the internet.In the situation that a UE moves outside RLAN, a UE present located address is pointed in registers kernel network and packet in its position---and core net uses this address to come the IP grouped data is directly delivered to the current location of a UE.

Figure 10 B has illustrated a selectable embodiment, here use the reverse path passage on the GI interface, to realize mobile IP v4, so that RLAN directly delivers to ownership CN to the IP of UE user data grouping, with a kind of usual manner they are relayed to the 2nd UE there.

When RLAN use to realize the GI interface of mobile IP v6 and when having connectedness, IP packet data exchanged between a UE and the 2nd UE will comprise Binding Update (bindingupdate), illustrated as Figure 11 A, can reflect any redirecting of switching required IP grouping like this.Figure 11 B has illustrated an embodiment selected of using the GI interface to realize being included in the mobile IP v6 of excavation passage between RLAN and the ownership CN.In this case, the CN positional information and the 2nd UE that directly follow the tracks of a UE can communicate by letter with the ownership CN of any usual manner with a UE.

With reference to Figure 12, show the preferable interface structure between the RLAN parts of the present utility model here.At RLAN via the UE interface between base station (being Node B), the standard Uu interface that is connected with UE of 3GPP regulation preferably.Iub interface between each Node B and RNC preferably is implemented in control plane and two planes of user data plane, and this is because the layered stacks agreement has the Internet Protocol (IP) as transport layer.Similarly, be preferably at least one subdivision that Iu-PS interface is provided between RNC and the RAN IP gateway, this is the layered stacks agreement that has as the IP of transport layer.

In SS7 was implemented in conventional UMTS on the ATM, the MTP3/SSCF/SSCOP layer assisted the SCCP of SS7 stack top layer to be inserted into following ATM stack.In the preferred IP scenario that uses in conjunction with the utility model, the MEUA/SCTP stack assists SCCP to be connected on the IP.In fact, be exactly in preferred IP-based structure, the M3UA/SCTP stack has replaced the MTP3/SSCP/SSCOP layer that uses in the SS7 scheme on the conventional ATM.The specific details of these standard protocol stack architectures is stipulated in IETF (internet) standard.For office and school's interior door, replace the use of the IP of ATS can save cost and PICO unit.

When RLAN had a plurality of RNC, for the two, RNC all can connect through having layered stacks protocol of I ur interface for the signaling plane that uses the IP transport layer and user plane.Each RNC is connected to one or more Node B, and these nodes are served a plurality of UE in the geographic area separately again successively, thereby these geographic areas may the overlapping switching that can carry out in the RLAN coverage.

The UE that communicates by letter with a Node B in the RLAN switches to another Node B in this RLAN, promptly switches in the RLAN (intra-RLAN handover), to carry out for a kind of usual manner that switches defined in the UTRAN among the 3GPP.Yet in the time of outside the UE that communicates by letter with the Node B of RLAN moves to this RLAN coverage, switching can utilize the IP packet service to realize by the RANIP gateway, and the mobile IP v4 or the IP v6 that discuss of the most handy front realizes.

Figure 13 has illustrated the subassembly according to preferred RLAN of the present utility model.RNC can be divided into standard control and the SRNS Serving Radio Network Subsystem (C-RNSs and S-RNSs) that is connected by inner Iur interface.In this structure, the S-RNS Function Coupling is to the SGSN subassembly of RAN IP gateway, and wherein this gateway is supported the subclass of standard SGSN function, just GPRS mobile management (GMM), session management (SM) and Short Message Service (SMS).This SGSN subassembly is connected with the GGSN subassembly, and the GGSN subassembly has the subclass of standard GGSN function, comprises the access route of SGNS subassembly function and gateway function support and is used for GI interface to the outside mobile IP that is connected in internet.With the preferably modified Gn/Gp interface of SGSN subassembly interface of GGSN subassembly, it is a subclass that is used for the standard Gn/Gp interface of the SGNS of CN and GGSN.

Alternatively, the RAN IP gateway has aaa functionality communicator parts, and it can be connected to the SGSN subassembly and port to the limited external communications of relevant CN is provided.This port is supported with prior figures 8 and 9 relevant Gr interface or radius/diameter interface to be discussed.

A plurality of RNC of RLAN can be provided, and they are by Iu-PS interface and the SGSN subdivision coupling that comprises enough connectednesses, to support the function of SGSN subassembly.If a plurality of RNC are provided, they are preferably by utilizing the standard I u interface coupling of IP transport layer.

For the transport layer of the different subassemblies of RLAN, the use of IP makes it be easy to independently realizing the RNC function in the computer server, thereby handles the user data and the signaling illustrated in fig. 15 of communication independently.With reference to Figure 16, a parts block diagram is wherein arranged, control device of wireless separates between the control plane server of user plane here.Except basic RLAN parts, optional voice gateways in Figure 15 and 16, have also been showed.

Each Node B of RLAN all utilize the IP transport layer and have with user plane servers be connected this user plane servers transmitting user data.What each Node B of RLAN also had discrete and a control plane server is connected the standard I ub signal controlling interface of this connection through having the IP transport layer.User plane servers and control plane server all utilize the layered stacks agreement and are connected to IP gateway, and preferably this agreement has the IP as transport layer.

For the configuration of a plurality of control plane servers, each can be coupled to each other through standard I ur interface, but only required that one is directly connected on the RAN IP gateway (RIP IW).Allow to share like this and be used for the resource that control signal is handled, when the zone of RLAN becomes regional when busy more than other, this can be used between each control plane server decentralized signal and handle.A plurality of control plane controllers and user plane servers can be connected in the mesh network, share control plane and user-plane resources in order to the stack layer agreement through preferably having the IP transport layer.

Providing under the situation about having through the optional voice gateways of the exterior connectivity of PCM circuit, control plane and user plane servers preferably have the stack layering agreement of IP transport layer and are coupled on these voice gateways through one.Control plane server and then be coupled with user plane servers via the Media Gateway Control Protocol gateway (Megaco) on the IP transport layer.Megaco is a control plane agreement, and it is set up carrying as the part of call setup and connects between the voice gateways element.

With reference to Figure 17 and 18, it shows preferred control plane and user-plane protocol stack respectively, and they are implemented between Node B, RNC (perhaps user plane servers and control plane server) and the RAN IP gateway of RLAN.In every width of cloth figure, all show the preferred over-the-air protocol stack of realizing through the Uu interface, wherein also show UE.

RLAN can dispose the voice support on its external IP connects.In this case, the RIP gateway is connected with Internet service provider (ISP), and this Internet service provider has the PCM voice gateways.These PCM voice gateways are converted to the pulse code modulation (pcm) form to the compress speech data, to be used for external voice communication.

Provide use coder/decoder (CODEC) to be used for the vocoder (Vocoder) of speech data compression.The vocoder format of two kinds of universal classes is AMR vocoder format and compressed format G.729.Figure 19 and the preferred user-plane protocol stack of 21 expressions, this user-plane protocol stack are embodied as the ISP voice gateways use that wherein is connected with RLAN and the voice compression format of UE same-type.Figure 19 has illustrated the AMR vocoder format; Figure 21 has illustrated G.729 vocoder format.Voice IP transmits on the IP interface without change as the grouped data of rule simply.

Utilize at UE under the situation of voice gateways of different compress speech agreements rather than ISP, a transducer is set in RNC or RNC IP gateway.Figure 20 represents preferred user-plane protocol stack, and wherein UE utilizes AMR vocoder ISP voice gateways then to utilize G.729 vocoder.Best, RAN IP gateway (RIP GW) comprises the AMR/G.729 transducer.In situation shown in Figure 20, the compressed voice form that transducer is converted to the AMR packed data that receives from Node B form is G.729 exported by RIP GW being used for.Utilize at RLAN under the situation of discrete user plane servers and control plane server, transducer can be arranged in user plane servers or IP gateway to the compressed voice data by the user plane servers transmission.

With reference to Figure 22, it shows preferred control protocol stack architecture, this control protocol stack architecture use by the standard that is used for Session initiation Protocol on the TCP/UDP that IP carried H.323 form (H.323/SIP) come support voice.The control signaling in fact with user plane in the speech data compressed format type used irrelevant equally.

Though the utility model is described based on special configurations, the various variation schemes in scope of the present utility model are conspicuous for those of ordinary skills.

Claims (13)

1. WLAN (wireless local area network) (RLAN) that is used to a plurality of subscriber equipmenies between subscriber equipment (UE) and/or the internet that the parallel wireless telecommunication services that comprise voice service are provided comprising:

First base station, it has a transceiver, this transceiver is configured with a Uu interface, to carry out time division duplex (TDD) Wideband Code Division Multiple Access (WCDMA) (W-CDMA) radio communication with each UE in a geographic area of selecting, comprises the voice service of use for first compression protocol of speech data;

First control device with the coupling of described first base station, be configured to use have a stack layering agreement and connect and control customer traffic and control is used for the signaling of base station communication, should be configured to use Internet Protocol (IP) than the low transmission layer than the low transmission layer;

Wireless access network Internet Protocol (RAN IP) gateway, it has a gateway general packet radio service (GPRS) support node (GGSN), to be connected with the internet via an Internet service provider (ISP), this Internet service provider has voice gateways of using described first compression protocol to change compressed voice data and pulse code modulation (pcm) signaling;

Described wireless access network Internet Protocol (RAN IP) gateway with a gateway general packet radio service (GPRS) support node uses has a next and described control device coupling of the stack layering agreement connection than the low transmission layer, should be configured to use Internet Protocol (IP) than the low transmission layer.

2. according to the WLAN (wireless local area network) (RLAN) of claim 1, the GGSN that it is characterized in that described RANIP gateway is arranged to via an Internet service provider (ISP) and is connected with the internet, this Internet service provider has voice gateways of using second compression protocol to change compressed voice data and pulse code modulation (pcm) signaling, described WLAN (wireless local area network) further comprises a speech data transducer, in order to change between the compressed voice data of described first and second compression protocols.

3. according to the WLAN (wireless local area network) (RLAN) of claim 1, the GGSN that it is characterized in that described RANIP gateway is arranged to via an Internet service provider (ISP) and is connected with the internet, and this Internet service provider has voice gateways of using second compression protocol to change compressed voice data and pulse code modulation (pcm) signaling; And

The GGSN of described RAN IP gateway comprises a speech data transducer, in order to change between the compressed voice data of described first and second compression protocols.

4. according to the WLAN (wireless local area network) (RLAN) of claim 3, it is characterized in that described speech data transducer is configured in AMR compressed voice data and G.729 changes between the compressed voice data.

5. according to the WLAN (wireless local area network) (RLAN) of claim 1, it is characterized in that:

Described first control device comprises:

First user plane servers is configured the customer traffic in order to the control base station communication; With

The first control plane server is configured to be used in order to control the signaling of base station communication;

Described first user plane servers is used has stack layering agreement connection next and described first base station coupling than the low transmission layer, should be configured to use Internet Protocol (IP) than the low transmission layer;

Described control plane server uses has stack layering agreement connection next and described first base station coupling than the low transmission layer, should be configured to use Internet Protocol (IP) than the low transmission layer;

Described RAN IP gateway is used has the stack layering agreement connection than the low transmission layer next and described first user plane servers and the coupling of the first control plane server, should be configured to use Internet Protocol (IP) than the low transmission layer; And

Described first user plane servers is used has next and described first a control plane server coupling of the stack layering agreement connection than the low transmission layer, should be configured to use Internet Protocol (IP) than the low transmission layer.

6. according to the WLAN (wireless local area network) (RLAN) of claim 5, the GGSN that it is characterized in that described RANIP gateway is arranged to via an Internet service provider (ISP) and is connected with the internet, and this Internet service provider has voice gateways of using second compression protocol to change compressed voice data and pulse code modulation (pcm) signaling; And

The GGSN of described RAN IP gateway comprises a speech data transducer, in order to change between the compressed voice data of described first and second compression protocols.

7. according to the WLAN (wireless local area network) (RLAN) of claim 6, it is characterized in that described speech data transducer is configured in AMR compressed voice data and G.729 changes between the compressed voice data.

8. according to the WLAN (wireless local area network) (RLAN) of claim 6, it is characterized in that comprising:

A plurality of base stations, each all has a transceiver, this transceiver is configured with a Uu interface, in a geographic area of selecting, to carry out time division duplex (TDD) Wideband Code Division Multiple Access (WCDMA) (W-CDMA) radio communication, comprise the voice service of use for first compression protocol of speech data with each UE;

Described first user plane servers is used has a stack layering agreement connection next and described base station coupling than the low transmission layer, should be to dispose to use Internet Protocol (IP) than the low transmission layer;

The described first control plane server uses has a stack layering agreement connection next and described base station coupling than the low transmission layer, should be configured to use Internet Protocol (IP) than the low transmission layer.

9. WLAN (wireless local area network) according to Claim 8 (RLAN) is characterized in that further comprising:

The second control plane server, its use have a stack layering agreement than the low transmission layer and connect to come and the coupling of described base station, should be configured to use Internet Protocol (IP) than the low transmission layer; With

The described first control plane server uses has next and described second a control plane server coupling of the stack layering agreement connection than the low transmission layer, should be configured to use Internet Protocol (IP) than the low transmission layer.

10. according to the WLAN (wireless local area network) (RLAN) of claim 1, it is characterized in that described first control device is one first radio network controller (RNC), this WLAN (wireless local area network) further comprises:

A plurality of base stations, each all has a transceiver, this transceiver is configured with a Uu interface, in a geographic area of selecting, to carry out time division duplex (TDD) Wideband Code Division Multiple Access (WCDMA) (W-CDMA) radio communication, comprise the voice service of use for first compression protocol of speech data with each UEs; And

A described RNC uses has a stack layering agreement connection next and described base station coupling than the low transmission layer, should be configured to use Internet Protocol (IP) than the low transmission layer.

11. the WLAN (wireless local area network) (RLAN) according to claim 10 is characterized in that:

The GGSN of described RAN IP gateway is arranged to via an Internet service provider (ISP) and is connected with the internet, and this Internet service provider has voice gateways of using second compression protocol to change compressed voice data and pulse code modulation (pcm) signaling; And

The GGSN of described RAN IP gateway comprises a speech data transducer, in order to change between the compressed voice data of described first and second compression protocols.

12., it is characterized in that described speech data transducer is configured in AMR compressed voice data and G.729 changes between the compressed voice data according to the WLAN (wireless local area network) (RLAN) of claim 11.

13. the WLAN (wireless local area network) (RLAN) according to claim 12 is characterized in that further comprising:

The 2nd RNC, its use has a stack layering agreement than the low transmission layer and connects to come and the coupling of second base station, should be configured to use Internet Protocol (IP) than the low transmission layer; And

A described RNC uses has next and described the 2nd a RNC coupling of the stack layering agreement connection than the low transmission layer, should be configured to use Internet Protocol (IP) than the low transmission layer.

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