CN100456879C - Mobile communication network and its communication method - Google Patents
Mobile communication network and its communication method Download PDFInfo
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- CN100456879C CN100456879C CNB2005100269790A CN200510026979A CN100456879C CN 100456879 C CN100456879 C CN 100456879C CN B2005100269790 A CNB2005100269790 A CN B2005100269790A CN 200510026979 A CN200510026979 A CN 200510026979A CN 100456879 C CN100456879 C CN 100456879C
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
- H04W36/00224—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB]
- H04W36/00226—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB] wherein the core network technologies comprise IP multimedia system [IMS], e.g. single radio voice call continuity [SRVCC]
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Abstract
The present invention discloses a mobile communication network and a communication method thereof, which relates to a mobile communication technique. Thus, communication systems which use different access techniques independently operate, mutually roam. Besides, the time delay of user services can be shortened. The present invention provides an IAN used for intensively controlling the switch among a plurality of communication systems; the IAN is composed of an IAU of a user surface and an IAC of a control surface; a device used for switching management in each communication system interacts with the IAC for realizing the switch among the systems and is accessed into an IMS and the Internet through the IAU. In addition, the present invention also provides a development system which comprises an E-AN and an E-CN which are used for providing wireless services for users together with the IAN, wherein the E-AN comprises at least one BS used for achieving the functions of physical layer, cell load control, wireless resource management, etc.; the E-CN comprises at least one EAC used for achieving the functions of mobility management, switching management among cells, etc. in the E-AN. Tunnel transmission data of the user surface is directly established between the BS and the IAU.
Description
Technical field
The present invention relates to mobile communication technology, particularly the framework of mobile communications network.
Background technology
Universal mobile telecommunications system (Universal Mobile Telecommunications System, be called for short " UMTS ") be (the European Telecommunications StandardsInstitute of ETSI European Telecommunications Standards Institute, be called for short " ETSI ") propose, be intended to be smoothly transitted on global system for mobile communications (Global System formobile Communication is called for short " the GSM ") network foundation solution of 3G (Third Generation) Moblie.Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, be called for short " WCDMA ") be one of international standard of International Telecommunications Union's (International Telecommunications Union is called for short " ITU ") Global 3G mobile communication of admitting.Also can be described as the 3-G (Generation Three mobile communication system) that puts it into commercial operation the earliest in the world, is the standard of European 3-G (Generation Three mobile communication system) Frequency Division Duplexing (FDD) (Frequency Division Duplex is called for short " FDD ") frequency range simultaneously.Because UMTS adopts Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access is called for short " WCDMA ") air interface technologies, therefore, also the UMTS system is called the WCDMA communication system usually.
The advantage of UMTS is, and is compatible with existing traditional gsm system energy.Thus, gsm system will be stage by stage to the UMTS transition.GPRS (the GeneralPacket Radio Service that has now released, be called for short " GPRS "), provide connectionless service to the GSM network, the business function and the flexibility of gsm system have been expanded, improved transmission of packet data speed, " the 2.5 generation GSM " mobile communication of being known as.And progressively to 3-G (Generation Three mobile communication system) (UMTS) transition.
Introduce the structure of UMTS system below with reference to Fig. 1.
As shown in Figure 1, the UMTS system has adopted and the similar structure of second generation mobile communication system, by such as cell phone, portable computer, the subscriber equipment of vehicular phone and so on (User Equipment, be called for short " UE "), be responsible for to handle universal mobile telecommunications system grounding wireless access network (the UMTS Terrestrial Radio Access Network of all and wireless function associated, be called for short " UTRAN "), and be responsible for to handle that all voice calls are connected with data in the UMTS system, and the core net of the exchange of realization and external network and routing function (Core Net is called for short " CN ") constitutes.
Wherein CN is from being divided into circuit switching (Circuit Switching is called for short " CS ") territory and packet switching (Packet Switching is called for short " PS ") in logic.
And UTRAN comprises one or several RNS (Radio Network Subsystem is called for short " RNS ").As shown in Figure 2, each RNS is made up of a radio network controller (Radio NetworkController is called for short " RNC ") and one or more base-station node (Node Base Station is called for short " NodeB ").Wherein, be connected by the Iu interface between RNC and the CN; NodeB is connected by Iub interface with RNC; Connect by the Iur interface between the RNC, the Iur interface can connect by the connection of the direct physical between the RNC or by transmission network to be realized.
In said structure, RNC is responsible for distributing and is attached thereto with control or the Radio Resource of relevant NodeB, in other words, promptly be responsible for the Radio Resource of control UTRAN, mainly finish functions such as connection foundation and disconnection, switching, the merging of grand diversity, RRM control.
NodeB then is responsible for finishing the conversion of the data flow between Iub interface and the Uu interface, also participates in a part of RRM simultaneously.Specifically, it comprises radio receiving-transmitting unit and Base-Band Processing parts, as mentioned above, by the Iub interface and the RNC interconnection of standard, mainly finishes the processing of Uu interface physical layer protocol.Its major function is spread spectrum, modulation, chnnel coding and despreading, demodulation, channel-decoding, also comprises the functions such as mutual conversion of baseband signal and radiofrequency signal.
The general configuration of the UTRAN network having introduced the UMTS system and comprised has above seen figures.1.and.2, several versions of roughly introducing third generation partner program (3rd Generation PartnershipProject is called for short " 3GPP ") below and having issued.
3GPP plays the tissue of setting up the end of the year 1998 by telecommunications group hair-weavings such as Europe, Japan, Korea S and the U.S..The aim of this tissue is that research, formulation and popularization serve as the standard of basis to the 3G (Third Generation) Moblie network development with the GSM mobile communications network.As above-mentioned WCDMA etc.Issued the standard of following version up till now: R99, R4, R5 and R6.
Fig. 3 illustrates the 3GPPR99 framework, and its concrete structure and principle can be referring to the pertinent literatures of 3GPP.Generally speaking, it has following characteristics:
One, core network is divided into CS circuit domain and PS packet domain in logic.
Two, the Iu interface between core net and the Access Network is based on asynchronous transfer mode (AsynchronousTransfer Mode, be called for short " ATM "), promptly, be divided into the grouping of many regular lengths the sixth of the twelve Earthly Branches when sending through digitized information (comprising various information such as voice, numeral, image), the regular length of each grouping is 53 bytes, is divided into letter head (accounting for 5 bytes) and information field (48 bytes) two parts.The content of letter head part is control informations such as whereabouts address, and the content of information field part then is the information that the user sends.The grouping of this regular length is called " cell " (cell), is the elementary cell that ATM transmits.The flexibility of the existing packet switching of this load mode, being applicable to the various data transmission services of non real-time has Circuit-switched simplicity again, is applicable to the transport service of real-times such as phone.Therefore using this transmission mode can integrate multiple business such as speech, numeral and image, realizes the integrated services digital network (B-ISDN) in broadband.Wherein, voice transfer can be used atm adaptation layer 2 (ATM Adaptation Layer is called for short " AAL2 "); Transfer of data can be used AAL5/ wireless universal packet service tunnel protocol (GPRSTunneling Protocal is called for short " GTP ").
Three, the core network circuit domain is based on time division multiplexing (Time Division Multiplexing is called for short " TDM ") bearing technology
Four, the core network packet domain is based on above-mentioned GPRS technology, by service universal grouping wireless business supporting node (Serving GPRS Support Node, be called for short " SGSN "), ggsn (Gateway GPRS Support Node, be called for short " GGSN "), charging gateway functional entitys such as (Charging Gateway are called for short " CG ") constitutes.
Fig. 4 illustrates the 3GPPR4 framework, and wherein the PS territory is identical with R99, does not draw among the figure.3GPPR4 framework and 3GPPR99 framework main difference are the CS territory, in the 3GPPR4 framework, will control with carrying and separate.The function of mobile switching centre's (Mobile Switching Center is called for short " MSC ") is divided into MSC Server and media gateway (Media Gateway is called for short " MGW ").Its concrete structure and principle can be referring to pertinent literatures.
Compare with the 3GPPR99 framework, 3GPPR4 has following characteristics:
One, networking mode flexibly: time division multiplexing (Time Division Multiplexing is called for short " TDM ")/ATM/ internetworking agreement (Internet Protocol is called for short " IP ") networking;
Two, bearer network merges: TDM/ATM/IP networking circuit domain adopts identical packet transmission networks with packet domain, can merge with metropolitan area network;
Three, extensibility: chain of command MSC Server, loading end CS-MGW can expand respectively; Four, manageability: chain of command MSC Server concentrates and is arranged on the key city, and loading end CS-MGW disperses to be arranged on edge cities, is more conducive to rapid the popularizing of new business and carries out; Five, to the next generation network evolution of (NextGeneration Network is called for short " NGN "): R4 control separates mutually with carrying, possesses the grown form of NGN network.
As mentioned above, the 3GPPR4 framework can adopt the IP carrying, has obtained following advantage thus: the advantage that the IP classified statistics are multiplexing; The packet bearer network, the number of times of minimizing encoding and decoding speech has improved the voice service quality, has saved the networking cost; The efficient utilization of the network bandwidth; Network configuration, dilatation and maintenance are simple, can significantly cut operating costs; Backbone network and data network can be shared, and reduce to build and drop into; Realize that many nets merge, and provide integrated service.
After 3GPPR99 and 3GPPR4 framework, 3GPPR5/R6 framework shown in Figure 5 has appearred, about the detailed description of these two kinds of frameworks, can be referring to the 3GPP relevant criterion.
By Fig. 5 as seen, in the follow-up evolution of network, beginning develops to multi-access systems, UTRAN conduct a kind of connecting system wherein, with other 3GPP systems such as GSM and such as WLAN (wireless local area network) (Wireless Local Area Network, be called for short " WLAN ") and so on non-3 GPP system as connecting system arranged side by side, access core net that can be arranged side by side.On the other hand, because the huge advantage of IP transmission, network is to all-IP net (All IP Network is called for short " AIPN ") development.CS territory general is progressively replaced by the packet voice (Voice over IP is called for short " VoIP ") in PS territory.
On the other hand, above-mentioned 3GPPR6 framework still has certain circumscribed, is in the consideration of long term growth, must consider following some:
At first, along with continuing to bring out of the high-speed wideband wireless communication system of non-3 GPP system, the network configuration of 3GPP will be faced with huge competitive pressure in future.In order to provide better service for the user, promptly, eat dishes without rice or wine the increasing substantially of data rate, the 3GPP plan is introduced such as OFDM (Orthogonal Frequency Division Multiplexing is called for short " OFDM ") and so on new physical-layer techniques.
Secondly, owing to comprise that the network architecture of having issued of 3GPPR6 has followed the Circuit-switched design concept in CS territory basically, cause the network design complexity, node is more, each node all will be handled and be transmitted, and calling establishment time delay and user data transmission time delay are all bigger, so these versions can not insert the connecting system of non-3GPP, this certainly will produce resistance to the flexible expansion of future network, also needs to consider to design brand-new Access Network and core network architecture thus.
The 3rd, there is variation in future network operation strategy, and transmission, control, access, business etc. are the possibility independent operation all, and present network can't satisfy the demand of independent operation.
This shows,, the requirement of communication system is become increasingly complex along with the variation of telecommunications requirements.In order to address this problem, the switching that communication system must better reduce user/chain of command time delay, can insert between multiple wireless access system, different Access Network more neatly is more easy, and wish that multiple connecting system can either independent operation, can roam mutually again.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of mobile communications network and communication means thereof, and communication system that make to use different access technologies not only can independent operation but also can have been roamed mutually; Can reduce the time delay of customer service in addition.
For achieving the above object, the invention provides a kind of mobile communications network, comprise at least two communication systems that access function is arranged, wherein at least one communication system is a mobile communication system, also comprise net between a connecting system, be used for the switching between each described communication system of centralized control, each described communication system is crossed by Netcom between described connecting system, carries out the mutual of data and signaling with user terminal in each described communication system;
Net further comprises between this connecting system:
Control plane function between connecting system is used for carrying out the user profile authentication of mobile management, the switching of interdepartmental system and admit control between described communication system;
User-plane function between connecting system is used in user's face tunnel and the carrying between foundation and management and described communication system under the control of control plane function between described connecting system.
Wherein, described mobile communication system can comprise the Access Network and the core net of evolution, wherein,
Comprise at least one base station in the described Access Network, be used for the user is inserted described core net, realize that layer one function is physical layer function, layer two function, cell load control, safe mode control, system information broadcast and RRM;
The connecting system controller that comprises at least one enhancing in the described core net is used to handle mobile management in the described Access Network, session management, encrypted authentication, the management of many cell radio resources and minizone handover management;
User-plane function is set up user's face tunnel and carrying between the direct and described connecting system in described base station, and this base station is by this user's face tunnel and carrying and other base station or other communication system interactive user face data.
In addition, can be the relation of one-to-many or multi-to-multi between the connecting system controller of described enhancing and the described base station.
In addition, net also is used for each the described communication system in the network is linked into internet protocol multimedia subsystem and internet between described connecting system;
Described communication system can also independently insert internet protocol multimedia subsystem and internet except that by the mode of netting between described connecting system.
In addition, user-plane function also is used for the data that user's face tunnel transmits are carried out compression of IP packet header and metadata cache between described connecting system.
In addition, also comprise in the described network by net between described connecting system and each described communication system public with any or its combination in any in the lower module:
Policy, billing principle functional module is used for processing policy and charging;
Home signature user server is used to store user's CAMEL-Subscription-Information and positional information.
In addition, described network also comprises the service control point that is used by net between described connecting system, is used to finish intelligent network business.
In addition, described communication system can adopt wireless or wired access technology, comprises:
The communication system that the communication system of each version of third generation partner program regulation, WLAN (wireless local area network), micro-wave access global inter communication communication system, the communication system that adopts various Digital Subscriber Line accesses and employing bluetooth insert.
The present invention also provides the communication means of user terminal in a kind of mobile communications network, is applied to mobile communications network mentioned above, and described method comprises following steps:
Behind party A-subscriber's base station access by terminal, the base station is initiated the user to the connecting system controller that strengthens and is inserted request;
The connecting system controller of the described enhancing of B responds described access request, carry out subscription authentication, then admit control as the user is legal, and the control plane function is set up between connecting system user-plane function to the user's face tunnel and the carrying of base station between the request connecting system;
The control plane function is controlled between described connecting system user-plane function and is set up described user's face tunnel and carrying between the described connecting system of C;
D uses described base station the business datum of described user's face tunnel and carrying transmission user.
Wherein, also comprise the policy, billing principle functional module that is used for processing policy and charging in the described network;
Described step D also comprises following substep:
In the service data transmission process, described policy, billing principle functional module by and described connecting system between the interface statistics flow of user-plane function, and customer service is chargeed according to flow.
In this external described method, also comprise the home signature user server that is used for storing user subscription information and positional information in the described network;
Among the described step B, the connecting system controller of described enhancing carries out subscription authentication according to the user signing contract information that obtains from described home signature user server.
In this external described method, described step C comprises following substep:
The control plane function sends to user-plane function between described connecting system with the quality of service requirement of customer service between described connecting system;
User-plane function is set up described user's face tunnel and carrying according to the quality of service requirement of receiving between described connecting system.
The present invention also provides the communication means of user terminal in a kind of mobile communications network, be applied to mobile communications network mentioned above, wherein said communication system inserts described user terminal by the universal mobile telecommunications system grounding wireless access network, and described method comprises following steps:
After the described user terminal of G inserted NodeB and radio network controller, this radio network controller was initiated the user to service universal grouping wireless business supporting node and is inserted request;
The described service universal grouping wireless business supporting node of H, respond described access request, carry out subscription authentication, then admit control as the user is legal, and the control plane function is set up user's face tunnel and the carrying that user-plane function arrives described radio network controller between connecting system between the request connecting system;
The control plane function is controlled between described connecting system user-plane function and is set up described user's face tunnel and carrying between the described connecting system of I;
The described radio network controller of J is linked into internet protocol multimedia subsystem and internet by described user's face tunnel and carrying.
Wherein, described step H also further comprises following substep:
If described service universal grouping wireless business supporting node is judged when carrying out subscription authentication that described user is under an embargo and is inserted net between described connecting system, then ask ggsn to set up user's face tunnel and carrying, and be linked into internet protocol multimedia subsystem and internet by this ggsn for this user.
The present invention also provides the method that user terminal switches in a kind of mobile communications network between different system, be applied to network mentioned above, and described method comprises following steps:
First equipment control plane function between connecting system that is used for handover management in the current communication system at user terminal place sends different system handoff request;
The control plane function is according to described handoff request between described connecting system, and second equipment that is used for handover management in the destinations traffic system sends the request of access;
Described second equipment judges whether user terminal has authority to insert the destinations traffic system, if then for this user terminal distributes access-in resource, and the control plane function notifies described first equipment to switch through between described connecting system.
Wherein, described first equipment is initiated the condition of different system handoff request and can is:
According to the measurement result of described user terminal to send up, find that the service ability of described destinations traffic system is stronger than current communication system.
In this external described method, the described equipment that is used for handover management can be:
The connecting system controller of service universal grouping wireless business supporting node, enhancing or WLAN (wireless local area network) IAD.
By relatively finding, the main distinction of technical scheme of the present invention and prior art is, the present invention proposes and be used for the IAN that switches between a plurality of communication systems of centralized control, IAN is made up of the IAU of user's face and the IAC of chain of command, IAU be used to set up and each communication system between user's face tunnel and carrying, IAC is used for mobile management, the user profile authentication between communication system and admits control; The equipment that is used for handover management in each communication system by and IAC realize alternately switching between system, and can insert IMS and Internet by IAU.
The invention allows for a kind of evolution system, comprise E-AN, E-CN, provide wireless service for the user with IAN is collaborative.Comprise at least one BS among the E-AN, be used to realize functions such as physical layer function, cell load control, safe mode control, system information broadcast and RRM, comprise at least one EAC among the E-CN, be used to realize functions such as mobile management in the E-AN, session management, encrypted authentication, the management of many cell radio resources and minizone handover management.Directly set up user's face tunnel transmission data between BS and IAU.
Difference on this technical scheme has brought comparatively significantly beneficial effect, promptly because the present invention has kept the original structure of each communication system, so each communication system can independent operation, independent IMS and the Internet of inserting.
Because introduced IAN, mobile management between system and unified functions such as data routing forwarding have been realized, so can be so that IMS does not distinguish each Access Network, interface is unified, and can be when keeping each communication system independence, but realize user terminal free-roaming between each communication system.
Because in evolution system, with respect to present 3GPP system, the node number of the required process of transfer of data of user's face and chain of command significantly reduces, so can reduce the time delay of customer service.
Because the present invention does not limit the access technology of communication system, so can use various wireless or fixed wide band inserting technologies, both comprised the UTRAN of 3GPP standard, comprise access technology and the following access technology that occurs of various non-3GPP again.
Description of drawings
Fig. 1 is the structural representation of UMTS system in the prior art;
Fig. 2 is a figure UTRAN schematic network structure in the prior art;
Fig. 3 is the 3GPPR99 configuration diagram;
Fig. 4 is a 3GPPR4 framework networking schematic diagram;
Fig. 5 is the 3GPPR6 configuration diagram;
Fig. 6 is the mobile communications network schematic diagram according to the first embodiment of the present invention;
Fig. 7 is communication means---the communication process schematic diagram of user terminal in the evolution system of user terminal in according to a second embodiment of the present invention the mobile communications network;
Fig. 8 is the communication means of user terminal in the mobile communications network of a third embodiment in accordance with the invention---user terminal communication schematic flow sheet among the existing UTRAN;
Fig. 9 is communication means---the switching flow schematic diagram of user terminal between different access systems of user terminal in the mobile communications network of a fourth embodiment in accordance with the 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.
According to principle of the present invention, should comprise two communication systems at least in the mobile communications network with access function.In the present embodiment, mobile communications network comprises (E-AN)+(E-CN) system, UTRAN+PS system, and wlan system.In addition, also comprise (the Inter Access-system Network of net between connecting system in the mobile communications network that the present invention proposes, abbreviation " IAN "), home signature user server (Home Subscriber Server, be called for short " HSS "), service control point (ServiceControl Point, abbreviation " SCP "), PCRF (policy, billing principle function) and internet protocol multimedia subsystem (IP Multimedia Subsystem is called for short " IMS ") etc.Fig. 6 illustrates the framework according to the mobile communications network of present embodiment, and is wherein succinct as far as possible in order to make accompanying drawing, omits not shown with the existing techniques in realizing accordant interface among the figure.
Below just with reference to accompanying drawing, to the explanation that makes an explanation one by one of the main composition in the mobile communications network of present embodiment.It may be noted that and therefore do not do detailed expansion hereinafter owing to the UTRAN+PS system and the wlan system that belong to the 3GPP system all are the technology of knowing in the prior art.
IAN at first is described below.
IAN is used for making each Access Network transparent concerning IMS to each Access Network centralized control.The realization of part correlation function can be with reference to " Institute of Electrical and Electronics Engineers's (Institute of Electrical andElectronics Engineers is called for short " IEEE ") 802.21 ".In other words, IAN is used for the switching between each communication system of centralized control.In the present invention, IAN can also be further used for each the described communication system in the network is linked into IMS and Internet.
As shown in Figure 6, IAN comprises IAU (user-plane function between connecting system) (InterAccess-system User plane, be called for short " IAU ") and IAC (control plane function between connecting system) (Inter Access-system Control plane is called for short " IAC ").
IAU is equivalent to the enhancing of GGSN user plane functions, in order under the control of IAC, sets up and leading subscriber face tunnel and carrying.In addition, in the present invention, this module can also have the IP packet header compression function that is used to improve efficiency of bandwidth use, and is used to simplify the metadata cache function of switching according to migration.
IAC has GGSN chain of command function, and handles the mobile management between connecting system, and the user profile authentication that interdepartmental system switches is admitted functions such as control.
It is pointed out that IAU and IAC both can realize in a functional entity, also can realize by a plurality of functional entitys.
One of ordinary skill in the art can be understood, because IAN has comprised the IAU of representative of consumer face and the IAC that represents chain of command, therefore, help to realize inserting flexibly multiple wireless access system, and make that the switching between different Access Networks is more easy, and multiple connecting system can independent operation, can roam mutually again.
As shown in Figure 6, can not do any change independent operation for the existing network framework of WLAN and UTRAN+PS.That is to say that they can directly insert IMS or Internet without IAN, in the UTRAN+PS system, UE can similar existing network in the communication of Internet, directly inserts Internet by GGSN, PCRF this moment (will be described below) and GGSN interface finish functions such as charging.In like manner WLAN can pass through packet data gateway (Packet Data Gateway is called for short " PDG ") access Internet.
On the other hand, the user face data of UTRAN+PS system also can directly insert IAN, to reduce user plane time delay.Specifically, the customer service request is at process service universal grouping wireless business supporting node (Serving GPRS Support Node, be called for short " SGSN ") authentication, after admitting control, directly set up user plane bearer between IAU and the UTRAN, the UTRAN data directly insert IAU from radio network controller (Radio Network Controller is called for short " RNC "), and insert Internet or IMS.One of ordinary skill in the art can be understood, and existing UTRAN+PS system only need correspond to the Iu User Plane chain of command respectively on two interfaces, just can realize that UTRAN directly is linked into IAN.
In addition, when between SGSN and the EAC Signalling exchange is arranged the time, as shown in Figure 6, can support the Direct Transfer in the 3GPP, need not pass through IAN.
As mentioned above, the mobile communications network of present embodiment also further comprises the mobile communication system of an evolution in the system of 3GPP, and this communication system comprises the Access Network (E-AN) and the core net (E-CN) of evolution.
The communication system of this evolution is described in further detail below.
E-AN is used for the user is inserted E-CN, and as shown in the figure, E-AN comprises at least 1 base station (BaseStation is called for short " BS ").BS is except that the NodeB function with original system, also has control radio network controller (Controlling Radio Network Controller, abbreviation " CRNC ") function and part service wireless network controller (Serving Radio Network Controller is called for short " SRNC ") function.Specifically, BS has realized functions such as physical layer function, cell load control, safe mode control, system information broadcast and RRM.
Connecting system controller (the Enhanced Access-systemController that comprises at least one enhancing among the E-CN, be called for short " EAC "), be used to realize functions such as mobile management in the E-AN, session management, encrypted authentication, the management of many cell radio resources and minizone handover management.In the present embodiment, can be the relation of one-to-many or multi-to-multi between EAC and the BS, distance is comparatively approaching usually between them.In the present embodiment, BS directly and IAU set up user's face tunnel and carrying, this BS is by this user's face tunnel and carrying and other BS or other communication system interactive user face data because the intermediate node of user face data process lack, so the time minimizing of delaying time.By the user's face tunnel between BS and IAU, BS both can insert IMS and Internet, also can be from mutual with other BS.
In the present invention, the chain of command of existing RNC can insert EAC, carries out mobile management, session management and authentication etc. by EAC.
Can understand by foregoing description, in the present invention, user's face directly inserts IAU, and simultaneously, BS chain of command information inserts EAC, because intermediate node is less, so can reduce the propagation delay time of chain of command data.
In addition, as shown in Figure 6, the mobile communications network of present embodiment also comprises HSS and PCRF, and they are public by the described communication system of IAN and each institute.
HSS at first is described, it is used to store user's CAMEL-Subscription-Information, positional information etc., and in the present embodiment, all public HSS module of each connecting system and IAN.PCRF then is used for functions such as processing policy and charging, in the present embodiment, and all public PCRF module of each connecting system and IAN.When IAU and IAC are realized that by a plurality of functional entitys then PCRF has interface with each IAU and IAC respectively, finish charge on traffic respectively and control is mutual.In the present embodiment, the UTRAN system is by GGSN and PCRF interface, and wlan system is by packet data gateway (Packet Data Gateway is called for short " PDG ") and PCFE interface.
In addition, as shown in Figure 6, in the mobile communications network according to present embodiment, also comprise the SCP that is used by IAN, it is used to finish intelligent network business.
Also it is to be noted, the functional module that among the present invention each is new all is a logical functional entity, when device fabrication, different logic entities can be put in the physical entity and realize, also a logic entity can be divided and in a plurality of physical entities, realize (for example distributed system), that is to say that they can arbitrary combination when physics realization.
In addition, communication system among the present invention both can adopt wireless access technology, also can adopt wire access technology, communication system, WLAN, micro-wave access global inter communication (Worldwide Interoperability for Microwave Access including but not limited to each version of 3GPP, abbreviation " WiMAX ") communication system, the communication system that adopts various Digital Subscriber Line (Digital Subscriber Line is called for short " DSL ") access and communication system that employing bluetooth (bluetooth) inserts or the like.
Be appreciated that by above-mentioned explanation and analysis, use the network architecture of the present invention, can make network class can insert IMS or Internet respectively like existing network, also can carry out mobile management between Access Network and unified functions such as data routing forwarding by network between Access Network, make IMS not distinguish each Access Network, interface is unified.Make that simultaneously the switching between different Access Networks is more easy, this also provides great convenience for existing UTRAN network insertion IAN in addition.
Below with reference to Fig. 7, communication means---the communication process of user terminal in the evolution system of user terminal in the mobile communications network is according to a second embodiment of the present invention described.
At first in step 710, behind the user terminal access base station, the base station is initiated the user to EAC and is inserted request, and the EAC response inserts request, carries out subscription authentication.That is to say that in this step, user terminal is by the BS access network, EAC is to subscription authentication in the BS request, does and admits control, and set up user plane bearer for the user;
Step 730 is admitted control, and request IAC sets up between connecting system user-plane function to the user's face tunnel and the carrying of base station, that is, communicating by letter with IAC is prepared as customer service and sets up user plane bearer;
Below with reference to Fig. 8, the communication means of user terminal in the mobile communications network of description a third embodiment in accordance with the invention---user terminal communication flow process among the existing UTRAN.
At first, in step 810: after user terminal inserted NodeB and RNC, this radio network controller was initiated the user to SGSN and is inserted request; That is to say that as shown in the figure, user terminal is by the NodeB/RNC access network, SGSN is to subscription authentication in the RNC request, does and admits control, and set up user plane bearer for the user.
After this, SGSN responds described access request, carries out subscription authentication, and is legal as the user, then admits control, and request IAC sets up the user's face tunnel and the carrying of IAU to RNC; After this, IAC control IAU sets up user's face tunnel and carrying; Then, RNC is linked into IMS and Internet by user's face tunnel and carrying.
Specifically, as shown in the figure:
Step 820:SGSN communicates by letter with HSS, judges whether the business of this user's request is legal, whether allows this user to insert IAN, if allow, then enters step 830, otherwise, enter step 870;
Step 830: allow the user to insert owing to judge SGSN in step 820, in this step, communicating by letter with IAC is prepared as customer service and sets up user plane bearer;
Step 840:IAC issues IAU with customer service QoS request, and IAU is established to user's face tunnel of RNC according to the customer service qos requirement;
Step 850: user service data directly arrives IAU through NodeB/RNC, and inserts Internet or IMS through IAU.
Step 860: in the communication process, PCRF and IAU have interface, are responsible for statistic flow, and according to flow customer service are chargeed;
Step 870: owing to judge that in step 820 SGSN does not allow the user to insert IAN, in this step, communicating by letter with GGSN is prepared as customer service and sets up user plane bearer.That is to say, if SGSN judge when carrying out subscription authentication that the user is under an embargo and insert IAN, then ask GGSN to set up user's face tunnel and carrying, and be linked into IMS and Internet by this GGSN for this user.
Step 880:GGSN is established to user's face tunnel of SGSN/RNC according to the customer service qos requirement;
Step 890: user service data arrives GGSN through NodeB/RNC/SGSN, finally inserts Internet or IMS;
Step 900: in the communication process, PCRF and GGSN have interface, are responsible for statistic flow, and according to flow customer service are chargeed;
Below with reference to Fig. 9, communication means---the switching flow of user terminal between different access systems of user terminal in the mobile communications network of description a fourth embodiment in accordance with the invention.Describe to the switching of 3GPP system with evolution system in the present embodiment.
Generally speaking, first equipment that is used for handover management in the current communication system (evolution system) at user terminal place, EAC for example, after IAC sends different system handoff request, IAC is according to handoff request, second equipment that in destinations traffic system (3GPP system), is used for handover management, for example SGSN sends the request of access; After this, second equipment judges whether user terminal has authority to insert the destinations traffic system, if then for this user terminal distributes access-in resource, and notify first equipment to switch through IAC.
This flow process more clearly shows by Fig. 9.
At first, in step 910: user terminal at first inserts IMS by evolution connecting system framework;
Step 920: when the user is in two chlamydate zones of connecting system, the measurement result of user terminal to send up shows that new connecting system service ability is stronger than the connecting system ability that service is provided, network side EAC then, just above-mentioned first equipment, can decision initiate to switch, it sends request to IAC, and informs the relevant access parameter of target access system.This shows that in the present embodiment, the condition that the first equipment EAC initiates different system handoff request is according to the measurement result of user terminal to send up, to find that the service ability of destinations traffic system is stronger than current communication system.
Step 930:IAC asks this user to insert this connecting system according to the SGSN/RNC in the information contact target access system of receiving;
Step 940: new connecting system SGSN, just above-mentioned second equipment, contact HSS judge whether this user has the right that inserts this connecting system, if having, then enters step 950, otherwise, enter step 980;
Step 950: owing to judge that in step 940 user has the right that inserts this connecting system, in this step,, and notify IAC to allow to insert for this user distributes corresponding access-in resource, and the corresponding access of feedback use information;
Step 960:IAC gives EAC with this feedback information, and feeds back to BS by EAC, and BS feeds back to user terminal with this access information, and informing user terminal switches;
Step 970: the user inserts new connecting system according to the information of the new connecting system of receiving, continues to use professional;
Step 980: owing to judge that in step 940 user does not have the right that inserts this connecting system, in this step, SGSN refuses IAC;
Step 990:IAC feeds back refuse information to EAC.
Being familiar with one of ordinary skill in the art can understand, if relate to wlan system, the equipment that is used for handover management can be WLAN (wireless local area network) IAD (WLAN Access Gateway is called for short " WAG ").
Except switching mutually between wireless system, also can switch between wireless and broadband cabled system, for example, when the notebook electricity that the user uses is required mental skill originally by WCDMA access IMS, when notebook is plugged netting twine, when the broadband access ability of 100M can be arranged, use the mode that is similar to the 4th embodiment also can seamlessly switch to and insert IMS by cable broadband.
Need to prove that EAC is placed on core net (core net can comprise E-CN, IAN, IMS etc.) side in the foregoing description, but also can be placed on the Access Network side.EAC can be independently, also can merge the also corresponding merging of E-CN and IAN like this with IAC.
Though by with reference to some preferred embodiment of the present invention, the present invention is illustrated and describes, those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (17)
1. a mobile communications network comprises at least two communication systems that access function is arranged, and wherein at least one communication system is a mobile communication system,
It is characterized in that, also comprise net between a connecting system, be used for the switching between each described communication system of centralized control, each described communication system is crossed by Netcom between described connecting system, carries out the mutual of data and signaling with user terminal in each described communication system;
Net further comprises between this connecting system:
Control plane function between connecting system is used for carrying out the user profile authentication of mobile management, the switching of interdepartmental system and admit control between described communication system;
User-plane function between connecting system is used in user's face tunnel and the carrying between foundation and management and described communication system under the control of control plane function between described connecting system.
2. mobile communications network according to claim 1 is characterized in that, described mobile communication system comprises the Access Network and the core net of evolution, wherein,
Comprise at least one base station in the described Access Network, the base station that comprises in the described Access Network is used for the user is inserted described core net, realizes physical layer function, layer two function, cell load control, safe mode control, system information broadcast and RRM;
The connecting system controller that comprises at least one enhancing in the described core net, the connecting system controller of the enhancing that comprises in the described core net are used to handle mobile management in the described Access Network, session management, encrypted authentication, the management of many cell radio resources and minizone handover management;
User-plane function is set up user's face tunnel and carrying between the direct and described connecting system in described base station, and this base station is by this user's face tunnel and carrying and other base station or other communication system interactive user face data.
3. mobile communications network according to claim 2 is characterized in that, is the relation of one-to-many or multi-to-multi between the connecting system controller of described enhancing and the described base station.
4. according to each described mobile communications network in the claim 1 to 3, it is characterized in that net also is used for each the described communication system in the network is linked into internet protocol multimedia subsystem and internet between described connecting system;
Described communication system can also independently insert internet protocol multimedia subsystem and internet except that by the mode of netting between described connecting system.
5. mobile communications network according to claim 4 is characterized in that, user-plane function also is used for the data that user's face tunnel transmits are carried out compression of IP packet header and metadata cache between described connecting system.
6. mobile communications network according to claim 4 is characterized in that, also comprise in the described mobile communications network by net between described connecting system and each described communication system public with any or its combination in any in the lower module:
Policy, billing principle functional module is used for processing policy and charging;
Home signature user server is used to store user's CAMEL-Subscription-Information and positional information.
7. mobile communications network according to claim 4 is characterized in that, described mobile communications network also comprises the service control point that is used by net between described connecting system, is used to finish intelligent network business.
8. mobile communications network according to claim 4 is characterized in that, described communication system adopts wireless or wired access technology, comprises:
The communication system that the communication system of each version of third generation partner program regulation, WLAN (wireless local area network), micro-wave access global inter communication communication system, the communication system that adopts various Digital Subscriber Line accesses and employing bluetooth insert.
9. the communication means of user terminal in the mobile communications network is applied to the described mobile communications network of claim 2,
It is characterized in that described method comprises following steps:
After party A-subscriber's terminal inserted described base station, described base station was initiated the user to the connecting system controller that strengthens and is inserted request;
The connecting system controller of the described enhancing of B responds described access request, carry out subscription authentication, then admit control as the user is legal, and the control plane function is set up between connecting system user-plane function to the user's face tunnel and the carrying of base station between the request connecting system;
The control plane function is controlled between described connecting system user-plane function and is set up described user's face tunnel and carrying between the described connecting system of C;
D uses described base station the business datum of described user's face tunnel and carrying transmission user.
10. the communication means of user terminal is characterized in that in the mobile communications network according to claim 9, also comprises the policy, billing principle functional module that is used for processing policy and charging in the described mobile communications network;
Described step D also comprises following substep:
In the service data transmission process, described policy, billing principle functional module by and described connecting system between the interface statistics flow of user-plane function, and customer service is chargeed according to flow.
11. the communication means of user terminal is characterized in that in the mobile communications network according to claim 9, also comprises the home signature user server that is used for storing user subscription information and positional information in the described mobile communications network;
Among the described step B, the connecting system controller of described enhancing carries out subscription authentication according to the user signing contract information that obtains from described home signature user server.
12. the communication means of user terminal is characterized in that in the mobile communications network according to claim 9, described step C comprises following substep:
The control plane function sends to user-plane function between described connecting system with the quality of service requirement of customer service between described connecting system;
User-plane function is set up described user's face tunnel and carrying according to the quality of service requirement of receiving between described connecting system.
13. the communication means of user terminal is applied to the described mobile communications network of claim 2 in the mobile communications network, wherein said communication system inserts described user terminal by the universal mobile telecommunications system grounding wireless access network,
It is characterized in that described method comprises following steps:
After the described user terminal of G inserted NodeB and radio network controller, this radio network controller was initiated the user to service universal grouping wireless business supporting node and is inserted request;
The described service universal grouping wireless business supporting node of H, respond described access request, carry out subscription authentication, then admit control as the user is legal, and the control plane function is set up user's face tunnel and the carrying that user-plane function arrives described radio network controller between connecting system between the request connecting system;
The control plane function is controlled between described connecting system user-plane function and is set up described user's face tunnel and carrying between the described connecting system of I;
The described radio network controller of J is linked into internet protocol multimedia subsystem and internet by described user's face tunnel and carrying.
14. the communication means of user terminal is characterized in that in the mobile communications network according to claim 13, described step H also further comprises following substep:
If described service universal grouping wireless business supporting node is judged when carrying out subscription authentication that described user is under an embargo and is inserted net between described connecting system, then ask ggsn to set up user's face tunnel and carrying, and be linked into internet protocol multimedia subsystem and internet by this ggsn for this user.
15. the method that user terminal switches between different system in the mobile communications network is applied to the described network of claim 1,
It is characterized in that described method comprises following steps:
First equipment control plane function between connecting system that is used for handover management in the current communication system at user terminal place sends different system handoff request;
The control plane function is according to described handoff request between described connecting system, and second equipment that is used for handover management in the destinations traffic system sends the request of access;
Described second equipment judges whether user terminal has authority to insert the destinations traffic system, if then for this user terminal distributes access-in resource, and the control plane function notifies described first equipment to switch through between described connecting system.
16. the method that user terminal switches between different system in the mobile communications network according to claim 15 is characterized in that, the condition that described first equipment is initiated different system handoff request is:
Described first equipment is according to the measurement result of described user terminal to send up, finds that the service ability of described destinations traffic system is stronger than current communication system.
17. the method that user terminal switches between different system in the mobile communications network according to claim 15 is characterized in that, the described equipment that is used for handover management is:
The connecting system controller of service universal grouping wireless business supporting node, enhancing or WLAN (wireless local area network) IAD.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100269790A CN100456879C (en) | 2005-06-21 | 2005-06-21 | Mobile communication network and its communication method |
| PCT/CN2006/001412 WO2006136103A1 (en) | 2005-06-21 | 2006-06-21 | Mobile communication network and communication method thereof |
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| CN101400160B (en) * | 2007-09-29 | 2013-04-10 | 北京三星通信技术研究有限公司 | Method for establishing connection by HNB |
| US8504045B2 (en) * | 2007-10-30 | 2013-08-06 | Ntt Docomo, Inc. | Mobile communication method and radio base station |
| CN101287296B (en) * | 2008-05-23 | 2012-06-06 | 中兴通讯股份有限公司 | Switching method among entities of resource accommodating control function |
| US20100284333A1 (en) * | 2009-05-08 | 2010-11-11 | Qualcomm Incorporated | Method and apparatus for data session suspend control in a wireless communication system |
| WO2019024042A1 (en) * | 2017-08-03 | 2019-02-07 | Zte Corporation | Methods and computing device for maintaining a radio resource control connection for a user equipment |
| US11765052B1 (en) | 2022-03-11 | 2023-09-19 | T-Mobile Usa, Inc. | User equipment hosting for customizable 5G services |
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| CN1412992A (en) * | 2001-10-15 | 2003-04-23 | 华为技术有限公司 | Method for implementing simplified control surface structure of 3G core web network equipment |
| CN1505413A (en) * | 2002-12-03 | 2004-06-16 | 北京三星通信技术研究有限公司 | Method for switching between CDMA system and GSM system in dual-mode mobile station |
| CN1543152A (en) * | 2003-04-28 | 2004-11-03 | 普天信息技术研究院 | A multi-protocol data gateway and its communication implementation method |
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| CN1412992A (en) * | 2001-10-15 | 2003-04-23 | 华为技术有限公司 | Method for implementing simplified control surface structure of 3G core web network equipment |
| CN1615614A (en) * | 2002-01-08 | 2005-05-11 | 摩托罗拉公司 | Packet data serving node initiated updates for a mobile communication system |
| CN1505413A (en) * | 2002-12-03 | 2004-06-16 | 北京三星通信技术研究有限公司 | Method for switching between CDMA system and GSM system in dual-mode mobile station |
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