CN102104987B

CN102104987B - Interface data processing method and equipment

Info

Publication number: CN102104987B
Application number: CN200910263857.1A
Authority: CN
Inventors: 邓永锋; 秦钧
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2009-12-21
Filing date: 2009-12-21
Publication date: 2014-03-12
Anticipated expiration: 2029-12-21
Also published as: CN102104987A; RU2518945C2; RU2012131152A; WO2011076079A1

Abstract

The embodiment of the invention provides an interface data processing method and equipment, relating to the communication field and being capable of realizing interconnection of internal resources and management of a 2/3G network, sharing partial news flow and achieving the purpose of optimizing a signaling structure. The solving solution is as follows: data is processed by using a uniform interface protocol stack, a control plane application layer of the uniform interface protocol stack comprises a BSSAP (Base Station Subsystem Application Part) protocol layer for loading the communication between an MSC (Mobile Switching Center) and a BSC (Base Station Controller), and/or an RANAP (Radio Access Network Application Part) protocol layer for loading the communication between the MSC and an RNC (Radio Network Controller), and a URAP (Universal Resource Application Platform) protocol layer; the URAP protocol layer is used for processing information in accordance to the BSSAP protocol layer or information in accordance to the RANAP protocol layer in the data, wherein the BSSAP protocol layer and/or the RANAP protocol layer are/is located in the same layer and adjacent to the URAP protocol layer; and the URAP protocol layer is connected with a control plane transmission layer of the uniform interface protocol stack.

Description

A kind of interface data processing method and equipment

Technical field

The present invention relates to the communications field, relate in particular to a kind of interface data processing method and equipment.

Background technology

Along with the introduction of 3G wireless communication system, the 2G-3G network integration receives much concern.GSM (Global System for Mobile Communications as 2G network, global system for mobile communications) with as UMTS (the Universal Mobile Telecommunications System of 3G network, universal mobile telecommunications system) fusion, has accomplished that core network element merges and access network elements merges at present.

Core network element fusion refers to adopt 2G-3G to share core net, supports UMTS/GSM professional ability, reduces network synthesis operation cost, for user provides high-quality UMTS/GSM communication service.

A kind of conventional networking that access network elements merges is planned to: by (the BaseStation Controller of the BSC in GSM network, base station controller) RNC (the Radio NetworkController and in UMTS network, radio network controller) be fused into unified RANC (Radio Access NetworkControl, Radio Access Network is controlled) network element and carry out network design.Its framework as shown in Figure 1.

In existing 2G-3G combination network, between the core network element after the access network elements after fusion and fusion, still utilize respectively original interface separately to carry out transfer of data.As the RANC of Access Network carries out data interaction with the MSC (Mobile Switching Center, mobile switching centre) of A interface and core net, the RANC of Access Network carries out data interaction with the MSC of Iu interface and core net.

State in realization in the process of data interaction, inventor finds in prior art, because adopting A/Iu dual interface, RANC is connected with MSC, and 2G, 3G carry out respectively data interaction, make the message flow that some 2/3G can be shared also need to transmit respectively, cannot carry out the structure optimization of signaling, waste bearing resource.

In addition, aspect handover mechanism, when switching between generation RANC built-in system, need carry out Signalling exchange by another logic control element in core net and this RANC, handoff procedure is comparatively complicated, time and the time of implementation of switching are longer, cannot meet the performance of handoffs requirement of current combination network.

Summary of the invention

Embodiments of the invention provide a kind of interface data processing method and equipment.

For achieving the above object, embodiments of the invention adopt following technical scheme:

A method for interface deal with data, comprising:

By unified interface protocol stack deal with data, the chain of command application layer of described unified interface protocol stack comprises for carrying the Base Station System Application Part Base Station Subsystem Application Part layer of communicating by letter between moving exchanging center MSC and base station controller BSC and/or carrying the Radio Access Network Application Part RANAP layer of communicating by letter between described MSC and radio network controller (RNC), and unified Access Network applying portion URAP protocol layer; Described URAP protocol layer is for the treatment of meeting the information of described Base Station Subsystem Application Part layer in described data or meeting the information of described RANAP layer;

Wherein, when described application layer comprises described Base Station Subsystem Application Part layer and described RANAP layer, described Base Station Subsystem Application Part layer and described RANAP layer are positioned at same layer, adjacent with described URAP protocol layer, and described URAP protocol layer is connected with the chain of command transport layer of described unified interface protocol stack; When described application layer comprises described Base Station Subsystem Application Part layer or described RANAP layer, described Base Station Subsystem Application Part layer or described RANAP layer are adjacent with described URAP protocol layer, and described URAP protocol layer is connected with the chain of command transport layer of described unified interface protocol stack.

The embodiment of the present invention also provides a kind of method of interface deal with data, comprising:

By unified interface protocol stack deal with data, the chain of command application layer of described unified interface protocol stack comprises for carrying the Base Station System Application Part Base Station Subsystem Application Part layer of the evolution of communicating by letter between moving exchanging center MSC and base station controller BSC and/or carrying the Radio Access Network Application Part RANAP layer of the evolution of communicating by letter between described MSC and radio network controller (RNC);

Wherein, when described application layer comprises the Base Station Subsystem Application Part layer of described evolution and the RANAP layer of described evolution, the Base Station Subsystem Application Part layer of described evolution and the RANAP layer of described evolution are positioned at same layer, and are connected with the chain of command transport layer of described unified interface protocol stack respectively; When described application layer comprises the Base Station Subsystem Application Part layer of described evolution or the RANAP layer of described evolution, the Base Station Subsystem Application Part layer of described evolution or the RANAP layer of described evolution are connected with the chain of command transport layer of described unified interface protocol stack.

The embodiment of the present invention also provides a kind of signal transmission method, comprising:

According to unified interface protocol stack, the Information encapsulation of the information that comprises Base Station System Application Part Base Station Subsystem Application Part layer and/or Radio Access Network Application Part RANAP layer is become to the message of unified Access Network applying portion URAP protocol layer, the message of described URAP protocol layer comprises the message that is used to indicate described URAP protocol layer to be processed or is processed by described RANAP layer by described Base Station Subsystem Application Part layer, or the indication information of being processed by described URAP protocol layer;

By described unified interface, send the message of described URAP protocol layer;

Wherein, the chain of command application layer of described unified interface protocol stack comprises for carrying the Base Station Subsystem Application Part layer of communicating by letter between moving exchanging center MSC and base station controller BSC and/or carrying the RANAP layer of communicating by letter between described MSC and radio network controller (RNC), and URAP protocol layer; Described URAP protocol layer is for the treatment of meeting the information of described Base Station Subsystem Application Part layer in data or meeting the information of described RANAP layer;

When described application layer comprises described Base Station Subsystem Application Part layer and described RANAP layer, described Base Station Subsystem Application Part layer and described RANAP layer are positioned at same layer, adjacent with described URAP protocol layer, described URAP protocol layer is connected with the chain of command transport layer of described unified interface protocol stack; Or described Base Station Subsystem Application Part layer and described RANAP layer are positioned at same layer, adjacent with described URAP protocol layer, described Base Station Subsystem Application Part layer, described RANAP layer, described URAP protocol layer are connected with the chain of command transport layer of described unified interface protocol stack;

When described application layer comprises described Base Station Subsystem Application Part layer or described RANAP layer, described Base Station Subsystem Application Part layer or described RANAP layer are adjacent with described URAP protocol layer, and described URAP protocol layer is connected with the chain of command transport layer of described unified interface protocol stack; Or described Base Station Subsystem Application Part layer or described RANAP layer are adjacent with described URAP protocol layer, described Base Station Subsystem Application Part layer or described RANAP layer, and described URAP protocol layer is connected with the chain of command transport layer of described unified interface protocol stack.

By unified interface, receive the message of unified Access Network applying portion URAP protocol layer;

According to the indication information in the message of described URAP protocol layer, the message of described URAP protocol layer is transmitted to the processing of Base Station System Application Part Base Station Subsystem Application Part layer or the processing of Radio Access Network Application Part RANAP layer, or is processed by described URAP protocol layer;

The embodiment of the present invention also provides a kind of interface treatment facility, comprising:

Uniform interface unit, for passing through unified interface protocol stack deal with data, the chain of command application layer of described unified interface protocol stack comprises for carrying the Base Station System Application Part Base Station Subsystem Application Part layer of communicating by letter between moving exchanging center MSC and base station controller BSC and/or carrying the Radio Access Network Application Part RANAP layer of communicating by letter between described MSC and radio network controller (RNC), and unified Access Network applying portion URAP protocol layer; Described URAP protocol layer is for the treatment of meeting the information of described Base Station Subsystem Application Part layer in described data or meeting the information of described RANAP layer; Wherein, when described application layer comprises described Base Station Subsystem Application Part layer and described RANAP layer, described Base Station Subsystem Application Part layer and described RANAP layer are positioned at same layer, adjacent with described URAP protocol layer, and described URAP protocol layer is connected with the chain of command transport layer of described unified interface protocol stack; When described application layer comprises described Base Station Subsystem Application Part layer or described RANAP layer, described Base Station Subsystem Application Part layer or described RANAP layer are adjacent with described URAP protocol layer, and described URAP protocol layer is connected with the chain of command transport layer of described unified interface protocol stack.

Uniform interface unit, for passing through unified interface protocol stack deal with data, the chain of command application layer of described unified interface protocol stack comprises for carrying the Base Station System Application Part Base Station Subsystem Application Part layer of the evolution of communicating by letter between moving exchanging center MSC and base station controller BSC and/or carrying the Radio Access Network Application Part RANAP layer of the evolution of communicating by letter between described MSC and radio network controller (RNC); Wherein, when described application layer comprises the Base Station Subsystem Application Part layer of described evolution and the RANAP layer of described evolution, the Base Station Subsystem Application Part layer of described evolution and the RANAP layer of described evolution are positioned at same layer, and are connected with the chain of command transport layer of described unified interface protocol stack respectively; When described application layer comprises the Base Station Subsystem Application Part layer of described evolution or the RANAP layer of described evolution, the Base Station Subsystem Application Part layer of described evolution or the RANAP layer of described evolution are connected with the chain of command transport layer of described unified interface protocol stack.

The embodiment of the present invention also provides a kind of interface reason sending ending equipment, comprising:

Encapsulation unit, be used for according to unified interface protocol stack, the Information encapsulation of the information that comprises Base Station System Application Part Base Station Subsystem Application Part layer and/or Radio Access Network Application Part RANAP layer is become to the message of unified Access Network applying portion URAP protocol layer, the message of described URAP protocol layer comprises the message that is used to indicate described URAP protocol layer to be processed or is processed by described RANAP layer by described Base Station Subsystem Application Part layer, or the indication information of being processed by described URAP protocol layer;

Transmitting element, for sending the message of described URAP protocol layer by described unified interface.

The embodiment of the present invention also provides a kind of interface to process receiving device, comprising:

Receiving element, for receiving the message of unified Access Network applying portion URAP protocol layer by unified interface;

Processing unit, be used for according to the indication information of the message of described URAP protocol layer, the message of described URAP protocol layer is transmitted to Base Station System Application Part Base Station Subsystem Application Part layer or the processing of Radio Access Network Application Part RANAP layer, or is processed by described URAP protocol layer.

The interface data processing method that the embodiment of the present invention provides and equipment, connect RANC and MSC by unified interface, and wherein, this unified interface agreement merges BSSAP and/or RANAP.Like this, when application layer comprises Base Station Subsystem Application Part layer and RANAP layer, the embodiment of the present invention is by a unified interface rather than two interfaces of the prior art, can be so that 2/3G data be passed through an interactive interfacing, and then can share the message flow of some 2/3G, can carry out the structure optimization of signaling.When application layer comprises Base Station Subsystem Application Part layer or RANAP layer, can be conducive to the smooth evolution merging.

The embodiment of the present invention also provides a kind of network traffic channel assigning method, comprising:

By unified interface, receive the message from the unified Access Network applying portion URAP protocol layer of moving exchanging center MSC, wherein, in the message of described URAP protocol layer, carry associating assignment request, described associating assignment request comprises for inquiring that the channel allocation to terminal distribution is still distributed in the information in second network at first network;

When definite terminal need to be switched to second network, to described terminal, send the request message that is switched to second network;

After the feedback information of reception from the described second network of access of described terminal feedback, by described unified interface, to described MSC, send the message of URAP protocol layer, the message of described URAP protocol layer comprise indication to the channel allocation of terminal distribution the information in described second network;

Wherein, the chain of command application layer of described unified interface protocol stack comprises for carrying the Base Station System Application Part Base Station Subsystem Application Part layer of communicating by letter between MSC and base station controller BSC and/or carrying the Radio Access Network Application Part RANAP layer of communicating by letter between described MSC and radio network controller (RNC), and URAP protocol layer; Described URAP protocol layer is for the treatment of meeting the information of described Base Station Subsystem Application Part layer in data or meeting the information of described RANAP layer;

By unified interface, to radio access network controller RANC, send the message of unified Access Network applying portion URAP protocol layer, wherein, in the message of described URAP protocol layer, carry associating assignment request, described associating assignment request comprises for inquiring that the channel allocation to terminal distribution is still distributed in the information in second network at first network;

By described unified interface, receive the message from the URAP protocol layer of described RANC, the message of described URAP protocol layer comprise indication to the channel allocation of terminal distribution the information in described second network;

Wherein, the chain of command application layer of described unified interface protocol stack comprises for carrying the Base Station System Application Part Base Station Subsystem Application Part layer of communicating by letter between moving exchanging center MSC and base station controller BSC and/or carrying the Radio Access Network Application Part RANAP layer of communicating by letter between described MSC and radio network controller (RNC), and URAP protocol layer; Described URAP protocol layer is for the treatment of meeting the information of described Base Station Subsystem Application Part layer in data or meeting the information of described RANAP layer; When described application layer comprises described Base Station Subsystem Application Part layer and described RANAP layer, described Base Station Subsystem Application Part layer and described RANAP layer are positioned at same layer, adjacent with described URAP protocol layer, described URAP protocol layer is connected with the chain of command transport layer of described unified interface protocol stack; Or described Base Station Subsystem Application Part layer and described RANAP layer are positioned at same layer, adjacent with described URAP protocol layer, described Base Station Subsystem Application Part layer, described RANAP layer, described URAP protocol layer are connected with the chain of command transport layer of described unified interface protocol stack;

By unified interface, receive the message from the first protocol layer of the evolution of moving exchanging center MSC, wherein, in the message of the first protocol layer of described evolution, carry associating assignment request, described associating assignment request comprises for inquiring that the channel allocation to terminal distribution is still distributed in the information in second network at first network;

After the feedback information of reception from the described second network of access of described terminal feedback, by described unified interface, to described MSC, send the message of the second protocol layer of evolution, the message of the second protocol layer of described evolution comprise indication to the channel allocation of terminal distribution the information in described second network;

Wherein, the chain of command application layer of the protocol stack of described unified interface comprises for carrying the Base Station Subsystem Application Part layer of the evolution of communicating by letter between MSC and base station controller BSC and/or carrying the RANAP layer of the evolution of communicating by letter between described MSC and radio network controller (RNC); When described application layer comprises the Base Station Subsystem Application Part layer of described evolution and the RANAP layer of described evolution, the Base Station Subsystem Application Part layer of described evolution and the RANAP layer of described evolution are positioned at same layer, and are connected with the chain of command transport layer of described unified interface protocol stack respectively; When described application layer comprises the Base Station Subsystem Application Part layer of described evolution or the RANAP layer of described evolution, the Base Station Subsystem Application Part layer of described evolution or the RANAP layer of described evolution are connected with the chain of command transport layer of described unified interface protocol stack;

When the message of the message of the first protocol layer of the described evolution Base Station Subsystem Application Part layer that is evolution, the message of the RANAP layer that the message of the second protocol layer of described evolution is evolution; When the message of the message of the first protocol layer of the described evolution RANAP layer that is evolution, the message of the Base Station Subsystem Application Part layer that the message of the second protocol layer of described evolution is evolution.

By unified interface, to radio access network controller RANC, send the message of the first protocol layer of evolution, wherein, in the message of the first protocol layer of described evolution, carry associating assignment request, described associating assignment request comprises for inquiring that the channel allocation to terminal distribution is still distributed in the information in second network at first network;

By described unified interface, receive the message from the second protocol layer of the evolution of described RANC, the message of the second protocol layer of described evolution comprise indication to the channel allocation of terminal distribution the information in described second network;

Wherein, the chain of command application layer of described unified interface protocol stack comprises for carrying the Base Station Subsystem Application Part layer of the evolution of communicating by letter between moving exchanging center MSC and base station controller BSC and/or carrying the RANAP layer of the evolution of communicating by letter between described MSC and radio network controller (RNC); When described application layer comprises the Base Station Subsystem Application Part layer of described evolution and the RANAP layer of described evolution, the Base Station Subsystem Application Part layer of described evolution and the RANAP layer of described evolution are positioned at same layer, and are connected with the chain of command transport layer of described unified interface protocol stack respectively; When described application layer comprises the Base Station Subsystem Application Part layer of described evolution or the RANAP layer of described evolution, the Base Station Subsystem Application Part layer of described evolution or the RANAP layer of described evolution are connected with the chain of command transport layer of described unified interface protocol stack;

The network traffic channel assigning method that the embodiment of the present invention provides, RANC is connected by a unified interface with MSC, 2/3G data interaction is all mutual by this unified interface, so RANC can grasp 2G, 3G wireless access technology user related information simultaneously, can directly carry out network switching.Avoided RANC in prior art need carry out by another logic control element in core net and this RANC the process of Signalling exchange, thereby simplified handoff procedure, reduced and switched the time of preparing and carrying out.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is 2G-3G combination network configuration diagram of the prior art;

The block diagram of the method for the interface deal with data that Fig. 2 provides for the embodiment of the present invention one;

The unified interface chain of command protocol stack schematic diagram that Fig. 3 provides for the embodiment of the present invention one;

The 2/3G combination network configuration diagram based on unified interface that Fig. 4 provides for the embodiment of the present invention one;

Fig. 5 is A interface control plane protocol stack schematic diagram;

Fig. 6 is A interface user plane protocol stack schematic diagram;

Fig. 7 is Iu-CS interface protocol stack schematic diagram;

The unified interface chain of command protocol stack schematic diagram two that Fig. 8 provides for the embodiment of the present invention one;

The unified interface user face protocol stack schematic diagram that Fig. 9 provides for the embodiment of the present invention one;

The signal transmission method block diagram one that Figure 10 provides for the embodiment of the present invention two;

The signal transmission method block diagram two that Figure 11 provides for the embodiment of the present invention two;

COMPLETE LAYER 3INFORMATION protocol encapsulation handling process schematic diagram in the 2G-3G combination network method that Figure 12 provides for the embodiment of the present invention two;

INITIAL UE MESSAGE protocol encapsulation handling process schematic diagram in the 2G-3G combination network method that Figure 13 provides for the embodiment of the present invention two;

COMPLETE LAYER 3INFORMATION message encapsulation schematic flow sheet in the 2G-3G combination network method that Figure 14 provides for the embodiment of the present invention two;

INITIAL UE MESSAGE message encapsulation schematic flow sheet in the 2G-3G combination network method that Figure 15 provides for the embodiment of the present invention two;

The FB(flow block) one of the network traffic channel assigning method that Figure 16 provides for the embodiment of the present invention three;

The FB(flow block) two of the network traffic channel assigning method that Figure 17 provides for the embodiment of the present invention three;

Figure 18 switches to the appointment schematic flow sheet of UTRAN for what the embodiment of the present invention three provided from GERAN;

Figure 19 switches to the appointment schematic flow sheet of GERAN for what the embodiment of the present invention three provided from UTRAN;

Figure 20 switches to the appointment schematic flow sheet two of UTRAN for what the embodiment of the present invention three provided from GERAN;

Figure 21 switches to the appointment schematic flow sheet two of GERAN for what the embodiment of the present invention three provided from UTRAN;

The block diagram of the method for the interface deal with data that Figure 22 provides for the embodiment of the present invention four;

The unified interface chain of command protocol stack schematic diagram that Figure 23 provides for the embodiment of the present invention four;

The unified interface chain of command protocol stack schematic diagram two that Figure 24 provides for the embodiment of the present invention four;

The interconnected schematic diagram of unified interface chain of command that Figure 25 provides for the embodiment of the present invention four;

The MSC of support unified interface and the interconnected schematic diagram of traditional access network that Figure 26 provides for the embodiment of the present invention four;

The RANC of support unified interface and the interconnected schematic diagram of traditional core network that Figure 27 provides for the embodiment of the present invention four;

The SCCP connection building process schematic diagram that Figure 28 provides for the embodiment of the present invention five;

The BSSAP signaling connection building process schematic diagram that Figure 29 provides for the embodiment of the present invention five;

The RANAP signaling connection building process schematic diagram that Figure 30 provides for the embodiment of the present invention five;

The SCCP that Figure 31 provides for the embodiment of the present invention five connects redirected flow process schematic diagram;

The block diagram of the method for the interface deal with data that Figure 32 provides for the embodiment of the present invention six;

The unified interface chain of command protocol stack schematic diagram that Figure 33 provides for the embodiment of the present invention six;

The unified interface chain of command protocol stack schematic diagram two that Figure 34 provides for the embodiment of the present invention six;

The interconnected schematic diagram of unified interface chain of command that Figure 35 (a), (b) provide for the embodiment of the present invention six;

The FB(flow block) of the network traffic channel assigning method that Figure 36 (a), (b) provide for the embodiment of the present invention seven;

Figure 37 switches to the appointment schematic flow sheet of UTRAN for what the embodiment of the present invention seven provided from GERAN;

Figure 38 switches to the appointment schematic flow sheet of GERAN for what the embodiment of the present invention seven provided from UTRAN;

The structured flowchart of the interface treatment facility that Figure 39 provides for the embodiment of the present invention eight;

The interface that Figure 40 provides for the embodiment of the present invention ten is managed the structured flowchart of sending ending equipment;

The interface that Figure 41 provides for the embodiment of the present invention 11 is processed the structured flowchart of receiving device.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.

Embodiment mono-

The method of the interface deal with data that the embodiment of the present invention one provides, as shown in Figure 2, the method comprises:

S201, by unified interface protocol stack deal with data, the chain of command application layer of this unified interface protocol stack comprises for carrying the Base Station System Application Part Base Station Subsystem Application Part layer of communicating by letter between moving exchanging center MSC and base station controller BSC and/or carrying the Radio Access Network Application Part RANAP layer of communicating by letter between MSC and radio network controller (RNC), and unified Access Network applying portion URAP protocol layer; URAP protocol layer is for the treatment of meeting the information of Base Station Subsystem Application Part layer in these data or meeting the information of RANAP layer;

Wherein, when application layer comprises Base Station Subsystem Application Part layer and RANAP layer, Base Station Subsystem Application Part layer and RANAP layer are positioned at same layer, adjacent with URAP protocol layer, and URAP protocol layer is connected with the chain of command transport layer of unified interface protocol stack; When application layer comprises Base Station Subsystem Application Part layer or RANAP layer, Base Station Subsystem Application Part layer or RANAP layer are adjacent with URAP protocol layer, and URAP protocol layer is connected with the chain of command transport layer of unified interface protocol stack.

Comprise BSSAP and RANAP this unified interface protocol stack schematic diagram as shown in Figure 3.

Concrete, above-mentioned " URAP protocol layer is for the treatment of meeting the information of Base Station Subsystem Application Part layer in these data or meeting the information of RANAP layer " refers to: for transmitting terminal, the Information encapsulation of the information that comprises Base Station Subsystem Application Part layer and/or RANAP layer to be become to the message of URAP protocol layer, and comprise the message that is used to indicate this URAP protocol layer process or processed by RANAP layer by Base Station Subsystem Application Part layer in the message of this URAP protocol layer, or the indication information of being processed by URAP protocol layer; For receiving terminal, be by according to the indication information in the message of the URAP protocol layer receiving, the message of this URAP protocol layer is transmitted to the processing of Base Station Subsystem Application Part layer or the processing of RANAP layer, or is processed by URAP protocol layer.

The method of the interface deal with data that the embodiment of the present invention provides, when application layer comprises Base Station Subsystem Application Part layer and RANAP layer, by a unified interface rather than two interfaces of the prior art, carry out data interaction, can share the message flow of some 2/3G, carry out the structure optimization of signaling.When application layer comprises Base Station Subsystem Application Part layer or RANAP layer, can be conducive to the smooth evolution merging.

The interface processing method that the embodiment of the present invention provides, can be based upon in the 2/3G combination network framework of access network elements RANC and core network element MSC, and its framework as shown in Figure 4.

BSC and RNC network element in tradition mobile communication network are fused into unified RANC.RANC is connected with NodeB (base station) by the Iub interface of standard; Abis interface by standard is connected with BTS.With existing GERAN network and UTRAN network class seemingly, Node B and the BTS (BaseTransceiver Station, base transceiver station) of RANC network element and its underpart administration have formed unified Access Network network together.Unified Access Network network adopts unified interface to be connected with core network element MSC by RANC.Unified interface is inherited the repertoire of existing A interface and Iu-CS interface, and for appointment, the total flow process of the 2/3G such as switching has carried out merging design.

It should be noted that, similarly, during RANC and SGSN (SERVING GPRS SUPPORT NODE, GPRS serving GPRS support node) interconnection, can Gb Interface and Iu-PS interface be fused into unified interface according to same principle, to realize the combination network in PS territory.

Take Fig. 4 as example, and 3G network is by RNC core network access, and 2G network is by BSC core network access.Interface between Access Network and core net adopts respectively A interface and Iu interface standard interface.In Fig. 4, in GSM network, between access network controller BSC and circuit domain core network element MSC, with A interface, be connected, in UMTS network, between access network controller RNC and circuit domain core network element MSC, with Iu-CS interface, be connected, between RANC and MSC, by unified interface, be connected.

Wherein, A interface is the interface between access network controller BSC and circuit domain core network element MSC in GSM network.The function of A interface is mainly mutual signaling and the GSM voice between carrying BSC and MSC.In gsm system, introduce after AoIP function, the transport layer of A interface adopts IP carrying to transmit.Corresponding A interface control plane protocol stack as shown in Figure 5.

Signaling bear BSSAP is connected and is transmitted by SCCP.SCCP belongs to traditional signalling system No.7 agreement.In the A of IPization mouth protocol stack, this protocol layer is mapped in the IP carrying of bottom by adapting protocol layer M3UA.

The user face protocol stack of A interface as shown in Figure 6.Because the speech business of transmitting on A interface belongs to real time business, user-plane protocol stack has adopted RTP (Real-time Transport Protoco, real time transport protocol) hierarchy of/UDP (User Datagram Protocol, User Datagram Protoco (UDP))/IP.Real-time Transport Protocol flows in order to transmitting real-time data; Udp protocol, in order to transmit disconnected user data message, has fully demonstrated the requirement of real time of speech business transmission.

Iu-CS interface is the interface between access network controller RNC in UMTS network and circuit domain core network element MSC.The function of Iu-CS interface is mainly mutual signaling and the UMTS voice between carrying RNC and MSC.The protocol stack schematic diagram of Iu-CS interface as shown in Figure 7.

The transport layer protocol stack of Iu-CS interface is divided into two kinds of ATM and IP.No matter be chain of command or user's face, the transport layer protocol stack of IP type and the transport layer protocol stack of AoIP are in full accord.Application layer protocol aspect, signaling bear RANAP, with A interface class seemingly, by SCCP, connect and transmit; User data transmits by Iu user plane protocol layer protocol.

The transfer of data of Iu user plane protocol layer protocol layer is divided into two kinds of patterns: transparent mode and support mode.The transmission mode that actual transmissions is used is indicated in assignment messages by RANAP.In transparent mode transmission, with AoIP interface class seemingly, voice packet directly transmits by the Real-time Transport Protocol of transport layer as payload; Support mode transmission has added the control functions such as corresponding Flow Control for the feature of AMR voice.

From above-mentioned mobile radio communication Architecture Analysis, adopt after IP transmission, at control plane, the transport layer protocol stack architecture of Iu-CS interface and A interface is in full accord, is SCCP/M3UA/SCTP/IP hierarchy; Only application layer protocol is inconsistent, and gsm system adopts Base Station Subsystem Application Part, and UMTS system adopts RANAP.Therefore,, when carrying out the interconnecting interface design of RANC and MSC, the chain of command protocol stack of original A interface and Iu-CS interface can be fused into unified unified interface chain of command protocol stack very naturally.The definition of concrete unified interface chain of command protocol stack as shown in Figure 8.

The transport layer of unified interface has been inherited Iu-CS interface and the original IPization transport layer protocol of A interface stack.The application layer of interface has been introduced a new application layer protocol URAP (Unite RAN Application Part, unified Access Network application).URAP protocol layer, as the common application sublayer of chain of command, is directly connected with SCCP layer, for opposite end URAP protocol layer between by SCCP, is connected alternately the URAP message of transmission.The Service Access Point SAP that BSSAP and RANAP layer provide by URAP sublayer, read-write is by BSSAP message and the RANAP message of corresponding URAP message transparent transmission.

URAP protocol layer comprises two parts major function: the processing capacity of BSSAP signaling and RANAP signaling identification function and URAP signaling.

1) BSSAP signaling and RANAP signaling identification function

RANC network element is actually by a BSC and a RNC and merges and form.Correspondingly, RANC has inherited the basic function of BSC and RNC, comprise and MSC between mutual signaling.The signaling process overwhelming majority in unified interface inherits from RANAP or Base Station Subsystem Application Part.First URAP protocol layer completes differentiates the type of above-mentioned two kinds of signalings.

2) processing capacity of URAP signaling

When the combining signaling trigger flow of unified interface, as 2/3G combines appointment flow process, MSC needs to RANC network element, to issue GSM simultaneously and assigns order and UMTS to assign order.Now, be message to be forwarded to Base Station Subsystem Application Part layer or RANAP layer all can cause assignment messages to resolve completely.This type of combining signaling flow process need directly be processed by URAP protocol layer.

Similarly, after application IP transmission, user's face transport layer protocol stack of Iu-CS interface and A interface is also in full accord, and the design of unified interface user's face transport layer also adopts the mode of inheriting Iu-CS interface and the original IPization transport layer protocol of A interface stack to realize.Application layer aspect, only supports transparent transmission pattern and Iu-CS interface is supported transparent mode and predefine size support mode simultaneously due to A interface, and unified interface adopts the user plane protocol layer protocol of Iu-CS interface as user's face application layer protocol.RANC divides timing carrying out actual traffic channel, and configurable user plane protocol layer protocol entity preferably clear pattern is transmitted.When terminal is carried out the 2/3G intersystem handover of RANC inside, its user plane bearer can be consistent before and after switching, and does not need to re-start configuration like this, has effectively avoided terrestrial links to switch and the interruption time delay that causes.Concrete unified interface user face protocol stack as shown in Figure 9.

So, between Access Network and core net, interconnected required interface type is single, and network architecture is simple, and the signalling point of configuration is relatively less, and the coverage of core net MSC is larger.In addition, because unified interface has merged two interfaces, the each several part of access network elements is logically also merged, be conducive to the smooth evolution of upgrading, reduced networking and the operation cost of operator.

Embodiment bis-

The embodiment of the present invention one has proposed a kind of unified interface that adopts and has carried out RANC and the interconnected combination network framework of MSC, and the overall structure of 2/3G networking and the design of the related protocol stack of unified interface have mainly been discussed.Second the embodiment of the present invention specifically discusses unified interface for the handling process of the signaling of existing Base Station Subsystem Application Part layer and the signaling of RANAP layer.

The signal transmission method that the embodiment of the present invention two provides, as transmitting terminal one side, as shown in figure 10, comprising:

S1001, according to unified interface protocol stack, the Information encapsulation of the information that comprises Base Station Subsystem Application Part layer and/or RANAP layer is become to the message of URAP protocol layer, the message of this URAP protocol layer comprises the message that is used to indicate this URAP protocol layer to be processed or is processed by RANAP layer by Base Station Subsystem Application Part layer, or the indication information of being processed by URAP protocol layer.

S1002, by unified interface, send the message of described URAP protocol layer.

Wherein, the chain of command application layer of this unified interface protocol stack comprises for carrying the Base Station Subsystem Application Part layer of communicating by letter between MSC and BSC and/or carrying the RANAP layer of communicating by letter between MSC and RNC, and URAP protocol layer; This URAP protocol layer is for the treatment of meeting the information of Base Station Subsystem Application Part layer in data or meeting the information of RANAP layer;

When application layer comprises Base Station Subsystem Application Part layer and RANAP layer, Base Station Subsystem Application Part layer and RANAP layer are positioned at same layer, adjacent with described URAP protocol layer, and described URAP protocol layer is connected with the chain of command transport layer of described unified interface protocol stack;

When application layer comprises Base Station Subsystem Application Part layer or RANAP layer, Base Station Subsystem Application Part layer or RANAP layer are adjacent with URAP protocol layer, and URAP protocol layer is connected with the chain of command transport layer of unified interface protocol stack.

In addition, as the method for receiving terminal, as described in Figure 11, comprising:

S1101, by unified interface, receive the message of URAP protocol layer.

S1102, according to the indication information in the message of this URAP protocol layer, the message of this URAP protocol layer is transmitted to Base Station Subsystem Application Part layer is processed or RANAP layer is processed, or is processed by URAP protocol layer.

It is identical that this receives the distolateral unified interface unified interface distolateral with transmission, repeats no more.

Further, indication information can comprise indication protocol type indication information, Indication message type indication information.

Like this, by an interactive interfacing, can share some message flows, thereby can optimize the structure of signaling.

Concrete, URAP protocol layer, as the common signaling sublayer of unified interface, is the interface between local signaling entity and opposite end signaling entity.Whenever URAP protocol layer receives URAP message, according to the indication information in message, signaling type discriminating is carried out to related signaling message in URAP sublayer, and is forwarded to respectively different protocol entity processing.The difference of type as indicated, the signaling identification function of URAP agreement can be divided into again signaling identification function based on protocol type and the signaling identification function based on type of message.

1) the signaling identification function based on protocol type

Transmitting terminal can add a new cell Protocol Type (protocol type) in the URAP message of encapsulation.The final protocol entity of processing current URAP message of the type indication is BSSAP, RANAP or URAP agreement.Concrete Protocol Type element definitions is referring to table 1.

Field code	Field name
		0000 0001	BSSAP
0000 0010	RANAP
		0000 0011	URAP

Table 1, protocol type element definitions

When cell Protocol Type indicates the protocol type of current URAP message to be BSSAP, the URAP sublayer of receiving terminal is forwarded to Base Station Subsystem Application Part entity by the BSSAP message being encapsulated in URAP message; When the protocol type of Protocol Type Indication message is RANAP, the RANAP message being encapsulated in URAP message will be forwarded to RANAP entity.In like manner, if when the protocol type of Protocol Type Indication message is URAP, represent that the signaling encapsulating in current URAP message is URAP signaling, will be processed by URAP self.

Take respectively the COMPLETE LAYER 3 INFORMATION message of Base Station Subsystem Application Part and the INITIAL UE MESSAGE message of RANAP is below example, illustrates that respectively URAP protocol layer is for the handling process of existing BSSAP message and RANAP message.

When terminal request BSC or RNC send first NAS (Non-Access Stratum, Non-Access Stratum) layer signaling, as LOCATION UPDATING REQUEST, during the message such as CM SERVICE REQUEST, BSC or RNC will send the COMPLETE LAYER 3 INFORMATION message of Base Station Subsystem Application Part or the INITIAL UE MESSAGE message of RANAP to MSC.Adopt after unified interface, because all interface signalings of RANC all need to forward by interface protocol sublayer URAP, it must add corresponding indication information on original message body again, is Protocol Type cell in this example.The URAP protocol encapsulation of concrete COMPLETE LAYER 3INFORMATION message and INITIAL UE MESSAGE message is as shown in table 2.

Information element	Configuration mode	Type
			Protocol Type＝BSSAP	BSS-MSC	M
BSSAP COMPLETE LAYER 3 INFORMATION	BSS-MSC	M

Information element	Configuration mode	Type
			Protocol Type＝RANAP	BSS-MSC	M
RANAP INITIAL UE MESSAGE	BSS-MSC	M

The URAP protocol encapsulation example of table 2, BSSAP/RANAP message

As shown in Table 2, be that BSSAP message or RANAP message all will be packaged into unified URAP message URAP message.The protocol type cell carrying in the URAP message of the URAP protocol layer of receiving terminal by its reception is distinguished the signaling of different agreement.Figure 12 has represented the protocol encapsulation handling process of unified interface for the COMPLETE LAYER 3 INFORMATION message of Base Station Subsystem Application Part.MSC receives after the URAP message of opposite end transmission, and the message body that judgement is received according to protocol type cell is BSSAP message, and this BSSAP message is taken out and be forwarded to corresponding Base Station Subsystem Application Part entity from URAP message.Target BS SAP protocol entity is processed receiving BSSAP message according to existing normal process.

Figure 13 has represented the protocol encapsulation handling process of unified interface for the INITIAL UE MESSAGE message of RANAP.MSC receives after the URAP message of opposite end transmission, and the message body that judgement is received according to protocol type cell is RANAP message, and this RANAP message is taken out and be forwarded to corresponding RANAP entity from URAP message.Target RANAP entity is processed receiving RANAP message according to existing normal process.

2) the signaling identification function based on type of message

URAP protocol layer is defined as respectively two kinds of different URAP type of messages by BSSAP message and RANAP message.The URAP protocol entity of receiving terminal can be forwarded to the message of BSSAP type corresponding Base Station Subsystem Application Part entity, and the message of RANAP type is forwarded to corresponding RANAP entity.Concrete Message Type element definitions example is referring to table 3.

Field code	Field name
		0000 0001	BSSAP message
0000 0010	RANAP message
		0000 0011	URAP Assignment Request
0000 0011	URAP Assignment Complete
		…	…

Table 3, information type cell coding schedule

In the present embodiment, take equally respectively the COMPLETE LAYER 3 INFORMATION message of Base Station Subsystem Application Part and the INITIAL UE MESSAGE message of RANAP is example, illustrates that respectively URAP protocol layer is for the handling process of existing BSSAP signaling and RANAP signaling.The present embodiment is owing to having adopted the indication information of type of message as URAP sublayer distribution BSSAP message and RANAP message, and corresponding modification has also been carried out in the encapsulation of corresponding URAP message.Concrete COMPLETE LAYER 3 INFORMATION message and the encapsulation of the URAP message of INITIALUE MESSAGE message are as shown in table 4.

Information element	Configuration mode	Type
			Message Type＝BSSAP message	BSS-MSC	M
BSSAP COMPLETE LAYER 3 INFORMATION	BSS-MSC	M

Information element	Configuration mode	Type
			Message Type＝RANAP message	BSS-MSC	M
RANAP INITIAL UE MESSAGE	BSS-MSC	M

The URAP message encapsulation example of table 4, BSSAP/RANAP message

As shown in Table 4, BSSAP signaling will be encapsulated as URAP message BSSAP message; RANAP signaling is encapsulated as URAP message RANAP message.URAP protocol layer is distinguished the signaling of different agreement by the type of message of the URAP message of its reception.

Figure 14 has represented the message encapsulation process flow process of unified interface for the COMPLETE LAYER 3 INFORMATION message of Base Station Subsystem Application Part.RANC, when sending message, is first completed the encapsulation of the BSSAP message of standard, and this message is forwarded to URAP protocol layer by Base Station Subsystem Application Part layer.URAP adds URAP message header in this message.Wherein adding message type field is a BSSAP message in order to indicate this URAP message.The URAP protocol layer of receiving terminal MSC is the message type information receiving according to it, and judgement receipt message body is BSSAP message, and this message is taken out, is forwarded to corresponding Base Station Subsystem Application Part layer and processes from URAP message BSSAP message.Target BS SAP protocol entity is processed receiving BSSAP message according to existing normal process.

Figure 15 has represented the message encapsulation process flow process of unified interface for the INITIAL UE MESSAGE message of RANAP.RANC, when sending message, is first completed the encapsulation of the RANAP message of standard, and this message is forwarded to URAP protocol layer by RANAP layer.URAP adds URAP message header in this message.Wherein adding message type field is a RANAP message in order to indicate this URAP message.The URAP protocol layer of receiving terminal MSC is the message type information receiving according to it, and judgement receipt message body is RANAP message, and this message is taken out, is forwarded to corresponding RANAP layer and processes from URAP message RANAP message.Target RANAP entity is processed receiving RANAP message according to existing normal process.

Unified interface by the embodiment of the present invention can find out for the handling process of existing BSSAP message and RANAP message, and the embodiment of the present invention provides passes through unified interface and can reach the requirement of industry to network interworking network design.

Embodiment tri-

The network traffic channel assigning method that the embodiment of the present invention three provides, as RANC side, as shown in figure 16, comprising:

S1601, by unified interface, receive the message from the URAP protocol layer of MSC, wherein, in the message of this URAP protocol layer, carry associating assignment request, this associating assignment request comprises for inquiring that the channel allocation to terminal distribution is still distributed in the information in second network at first network.

S1602, when definite terminal need to be switched to second network, to terminal, send the request message be switched to second network.

S1603, receive after the feedback information from this second network of access of terminal feedback, by this unified interface, to MSC, send the message of URAP protocol layer, the message of this URAP protocol layer comprise indication to the channel allocation of terminal distribution the information in second network.

Wherein, the chain of command application layer of this unified interface protocol stack comprises for carrying the Base Station Subsystem Application Part layer of communicating by letter between MSC and BSC and/or carrying the RANAP layer of communicating by letter between MSC and RNC, and URAP protocol layer; This URAP protocol layer is for the treatment of meeting the information of Base Station Subsystem Application Part layer in data or meeting the information of RANAP layer.

For above-mentioned Access Network side business Channel Assignment method, as the network traffic channel assigning method of MSC side, as shown in figure 17, the method step comprises:

S1701, the message by unified interface to RANC transmission URAP protocol layer, wherein, in the message of this URAP protocol layer, carry associating assignment request, this associating assignment request comprises for inquiring that the channel allocation to terminal distribution is still distributed in the information in second network at first network.

S1702, by this unified interface, receive the message from the URAP protocol layer of RANC, the message of this URAP protocol layer comprise indication to the channel allocation of terminal distribution the information in second network.

Wherein, the unified interface of MSC side is identical with the unified interface of above-mentioned RANC side, repeats no more.

The network traffic channel assigning method that the embodiment of the present invention provides, owing to being connected by a unified interface, so 2/3G data interaction is all mutual by this unified interface, RANC can grasp 2G, 3G wireless access technology user related information simultaneously, can directly carry out network switching.Avoided RANC in prior art need carry out by another logic control element in core net and this RANC the process of Signalling exchange, thereby simplified handoff procedure, reduced and switched the time of preparing and carrying out.

Concrete, from above-described embodiment two, the difference of information as indicated, the message of URAP protocol layer can be designed to two kinds dissimilar: the URAP message based on protocol type or the URAP message based on type of message.Correspondingly, the flow process of combining signaling is also divided for the combining signaling flow process based on protocol type and the combining signaling flow process based on type of message.

1) the combining signaling flow process based on protocol type

In combining signaling flow process based on protocol type, first the URAP protocol entity of transmitting terminal MSC encapsulates a complete URAP signaling, as assign signaling URAP Assignment Request, and by the above-mentioned protocol encapsulation mode of mentioning, this message is encapsulated in unified URAP message URAP message.The URAP of take in table 5 assigns signaling to provide the protocol encapsulation example of URAP combining signaling as example.

Information element	Configuration mode	Type
			Protocol Type＝URAP	MSC-BSS	M
URAP Assignment Request	MSC-BSS	M

The protocol encapsulation example of table 5URAP combining signaling

As shown in table 5, except original URAP signaling, URAP sublayer also will add cell Protocol Type in URAP message.Under this scene, the protocol entity that this cell should indicate the current URAP message of final processing should be URAP agreement.Concrete Protocol Type element definitions is referring to table 1.The URAP sublayer of receiving terminal RANC receives after URAP message, and according to protocol type judgement, the message body receiving is URAP signaling, directly carries out URAP signaling processing procedure.Figure 18 shows that the fusion that switches to UTRAN from GERAN based on protocol type assigns flow process.In the present embodiment, first network is GSM network, and second network is UMTS network.This flow process has provided a basic application example of the combining signaling flow process based on protocol type in RANC network.From GERAN, switch to and assign combining of UTRAN flow process, terminal foundations that first makes a call in GSM network, RANC is assigned to UMTS network and completes session establishment terminal is redirected according to factors such as radio link quality, cell loads.

Concrete from GERAN, switch to UTRAN business Establishing process step and be:

The RR that S1801, terminal are initiated to eat dishes without rice or wine in GSM network connects process of establishing.

S1802, initiate connection request due to current terminal object for setting up voice conversation, RR connects and has set up rear terminal and to MSC, send CM service request message by RANC, asking MSC is that voice conversation is set up MM connection.In unified interface, this message will forward by BSSAP signaling COMPLETE LAYER 3INFORMATION message.

S1803, receive that after the MM request of connect setting up of terminal, MSC initiates safety function processing procedure.Because terminal now is still arranged in GSM network, related signaling is all by corresponding BSSAP signalling.

After S1804, safety function are finished, terminal, to MSC initiation session process of establishing, is set up high-rise CC and is connected.

After S1805, CC connection has been set up, MSC sends URAP message message to RANC network element, wherein comprises URAP and combines appointment signaling URAP Assignment Request.In this signaling message, comprise the resource allocation request of 2G and 3G simultaneously.

Under S1806, this scene, RANC should be based upon 3G side according to the current radio link quality of terminal, community present load information judgment call.Therefore, RANC initiates the appointment flow process of 3G by Um Interface, and voice conversation is set up in indicating terminal access target 3G community.This appointment process can, by existing normal process, have been switched by Handover to UTRAN command; Also can be completed by the newly-increased UMTS Radio BearerSetup message of Um Interface.

After S1807, appointment flow process complete, RANC is to MSC feedback URAP Assignment Response signaling message, and indicating channel is assigned.By the definition of protocol encapsulation, this signaling is encapsulated into unified URAPmessage message equally.Under this scene, because call setup is in 3G side, in response message URAP AssignmentResponse, comprise RANAP message RAB Assignment Response.

Figure 19 represented based on protocol type from UTRAN, switch to GERAN combine appointment flow process.In the present embodiment, first network is UMTS network, and second network is GSM network.In this flow process, the terminal foundation that first makes a call in UMTS network, RANC is redirected terminal to be assigned to GSM side and to complete session establishment according to factors such as radio link quality, cell loads.

Concrete from UTRAN, switch to GERAN business Establishing process step and be:

The RRC that S1901, terminal are initiated to eat dishes without rice or wine in UMTS network connects process of establishing.

S1902, initiate connection request due to current terminal object for setting up voice conversation, RRC connects and has set up rear terminal and to MSC, send CM service request message by RANC, asking MSC is that voice conversation is set up MM connection.In unified interface, this message will forward by RANAP signaling INITIAL UE MESSAGE message.

S1903 receives that the MM of terminal connects after the request of foundation, and MSC initiates UMTS safety function processing procedure.Because terminal now is still arranged in UMTS network, related signaling is all by corresponding RANAP signalling.

After S1904, safety function are finished, terminal, to MSC initiation session process of establishing, is set up high-rise CC and is connected.

After S1905, CC connection has been set up, MSC sends URAP message message to RANC network element, wherein comprises URAP and assigns signaling URAP Assignment Request.In this signaling message, comprise the resource allocation request of 2G and 3G simultaneously.

Under S1906, this scene, RANC should be based upon GSM side according to the current radio link quality of terminal, community present load information judgment call.Therefore, RANC initiates the appointment flow process of 2G by Uu interface, and voice conversation is set up in indicating terminal access target GSM community.This appointment process can, by existing normal process, have been switched by Handover from UTRAN command; Also can be completed by the newly-increased GSM AssignmentCommand message of Uu interface.

After S1907, appointment flow process complete, RANC is to MSC feedback URAP Assignment Response signaling message, and indicating channel is assigned.By the definition of protocol encapsulation, this signaling is encapsulated into unified URAPmessage message equally.Under this scene, owing to calling out, be finally based upon 2G side, in response message URAP AssignmentResponse, comprise BSSAP message Assignment Complete.

2) the combining signaling flow process based on type of message

In combining signaling flow process based on type of message, the URAP agreement of transmitting terminal MSC completes the encapsulation of URAP message according to common message encapsulation format.First in message header, add the type of message of current URAP message, and enclose relevant message body content thereafter.The URAP of take in table 6 assigns signaling to provide the message encapsulation example of URAP combining signaling as example.

Information element	Configuration mode	Type
			Message Type＝URAP Assignment Request	MSC-BSS	M
BSSAP Assignment Request	MSC-BSS	O
			RANAP RAB Assignment Request	MSC-BSS	O

The message encapsulation example of table 6URAP combining signaling

Because assigning signaling, URAP need issue the appointment order of 2G and 3G simultaneously, as shown in table 6, this message can be designed to add a complete BSSAP assignment request Assignment Request and a complete RANAP assignment request RAB Assignment Request message in message body.The URAP sublayer of receiving terminal RANC receives after URAP message, and the message body receiving according to the type of message judgement of current message is URAP signaling, carries out URAP signaling processing procedure.URAP message body is resolved in URAP sublayer first, and to Base Station Subsystem Application Part layer and RANAP layer, forwards corresponding assignment request signaling respectively.Due to what encapsulate in URAP appointment signaling, be the assignment request of BSSAP and the RANAP of standard, Base Station Subsystem Application Part layer can be resolved corresponding assignment request by existing standard flow process with RANAP layer.By this kind of multiplexing type, design, greatly improved the inheritance of unified interface for legacy interface, effectively protected the early investment of operator for current network.

Figure 20 shows that based on type of message from GERAN, switch to UTRAN combine appointment flow process.In the present embodiment, first network is GSM network, and second network is UMTS network.This flow process has provided a basic application example of the combining signaling flow process based on type of message in RANC network.In flow process, the terminal foundation that first makes a call in GSM network, RANC is redirected terminal to be assigned to UMTS side and to complete session establishment according to factors such as radio link quality, cell loads.

Concrete from GERAN, switch to UTRAN business Establishing process step and be:

The RR that S2001, terminal are initiated to eat dishes without rice or wine in GSM network connects process of establishing.

S2002, initiate connection request due to current terminal object for setting up voice conversation, RR connects and has set up rear terminal and to MSC, send CM service request message by RANC, asking MSC is that voice conversation is set up MM connection.In unified interface, this message will forward by BSSAP signaling COMPLETE LAYER 3INFORMATION message.

S2003, receive that after the MM request of connect setting up of terminal, MSC initiates safety function processing procedure.Because terminal now is still arranged in GSM network, related signaling is all by corresponding BSSAP signalling.

After S2004, safety function are finished, terminal, to MSC initiation session process of establishing, is set up high-rise CC and is connected.

After S2005, CC connection has been set up, MSC sends URAP Assignment Request message to RANC network element.In this signaling message, comprise the resource allocation request of 2G and 3G simultaneously.

Under S2006, this scene, RANC should be based upon 3G side according to the current radio link quality of terminal, community present load information judgment call.Therefore, RANC initiates the appointment flow process of 3G by Um Interface, and voice conversation is set up in indicating terminal access target 3G community.This appointment process can, by existing normal process, have been switched by Handover to UTRAN command; Also can be completed by the newly-increased UMTS Radio BearerSetup message of Um Interface.

After S2007, appointment flow process complete, RANC is to MSC feedback URAP Assignment Response signaling message, and indicating channel is assigned.Under this scene, because call setup is in 3G side, in response message, comprise RANAP message RAB Assignment Response.

Figure 21 provided based on type of message from UTRAN, switch to GERAN combine appointment flow process.In the present embodiment, first network is UMTS network, and second network is GSM network.The terminal foundation that first makes a call in UMTS network, RANC is redirected terminal to be assigned to GSM side and to complete session establishment according to factors such as radio link quality, cell loads.

Concrete from UTRAN, switch to GERAN business Establishing process step and be:

The RRC that S2101, terminal are initiated to eat dishes without rice or wine in UMTS network connects process of establishing.

S2102, initiate connection request due to current terminal object for setting up voice conversation, RRC connects and has set up rear terminal and to MSC, send CM service request message by RANC, asking MSC is that voice conversation is set up MM connection.In unified interface, this message will forward by RANAP signaling INITIAL UE MESSAGE message.

S2103, receive that after the MM request of connect setting up of terminal, MSC initiates UMTS safety function processing procedure.Because terminal now is still arranged in UMTS network, related signaling is all by corresponding RANAP signalling.

After S2104, safety function are finished, terminal, to MSC initiation session process of establishing, is set up high-rise CC and is connected.

After S2105, CC connection has been set up, MSC sends URAP Assignment Request message to RANC network element.In this signaling message, comprise the resource allocation request of 2G and 3G simultaneously.

Under S2106, this scene, RANC should be based upon GSM side according to the current radio link quality of terminal, community present load information judgment call.Therefore, RANC initiates the appointment flow process of 2G by Uu interface, and voice conversation is set up in indicating terminal access target GSM community.This appointment process can, by existing normal process, have been switched by Handover from UTRAN command; Also can be completed by the newly-increased GSM AssignmentCommand message of Uu interface.

After S2107, appointment flow process complete, RANC is to MSC feedback URAP Assignment Response signaling message, and indicating channel is assigned.Under this scene, owing to calling out, be finally based upon 2G side, in response message, comprise BSSAP message Assignment Complete.

The network traffic channel assigning method that the embodiment of the present invention provides, owing to having adopted unified interface, has avoided handoff procedure numerous and diverse in prior art, has effectively shortened the switching determination time and has switched the time of implementation.

Embodiment tetra-

The method of the interface deal with data that the embodiment of the present invention four provides, as shown in figure 22, the method comprises:

S2201, by unified interface protocol stack deal with data, the chain of command application layer of this unified interface protocol stack comprises for carrying the Base Station Subsystem Application Part layer of communicating by letter between MSC and BSC and/or carrying the RANAP layer of communicating by letter between MSC and RNC, and URAP protocol layer; This URAP protocol layer is for the treatment of meeting the information of Base Station Subsystem Application Part layer in these data or meeting the information of RANAP layer;

Wherein, when application layer comprises Base Station Subsystem Application Part layer and RANAP layer, Base Station Subsystem Application Part layer and RANAP layer are positioned at same layer, adjacent with URAP protocol layer, and Base Station Subsystem Application Part layer, RANAP layer, URAP protocol layer are connected with the chain of command transport layer of unified interface protocol stack respectively;

When application layer comprises Base Station Subsystem Application Part layer or RANAP layer, Base Station Subsystem Application Part layer or RANAP layer are adjacent with URAP protocol layer, Base Station Subsystem Application Part layer or RANAP layer, and URAP protocol layer is connected with the chain of command transport layer of unified interface protocol stack.

The schematic diagram of this unified interface protocol stack that comprises BSSAP and RANAP as shown in figure 23.

Like this, make unified interface that the embodiment of the present invention the provides existing interface on can compatible existing existing equipment.; if the equipment that this unified interface connects is for supporting the new equipment of this unified interface; can be undertaken by the message of URAP protocol layer alternately between them; the URAP protocol layer of unified interface can be according to the indication information in URAP message; the message of this URAP protocol layer is transmitted to Base Station Subsystem Application Part layer or the processing of RANAP layer, or self processes; If the equipment that this unified interface connects is not for supporting the existing equipment of unified interface, this unified interface still can receive existing BSSAP message or RANAP message, and is directly processed by BSSAP or RANAP.

The planar network architecture of still take in embodiment mono-is example, and the concrete protocol stack structure that comprises BSSAP and RANAP that the present embodiment provides can be as shown in figure 24.

When RANC network element carries out signaling exchange with the MSC that supports unified interface, the SCCP setting up based on URAP signaling connects, and according to the unified interface signaling process of embodiment bis-, carries out Signalling exchange.And when RANC network element and traditional MSC carry out signaling exchange, the SCCP setting up in unified interface based on BSSAP or RANAP signaling connects.BSSAP or RANAP message can directly be transmitted by SCCP by the standard signalling mode of prior art.In like manner, between the evolution MSC that supports unified interface and traditional BSC/RNC, the SCCP of foundation based on BSSAP or RANAP signaling is connected, in order to BSSAP or the RANAP Signalling exchange flow process of operative norm.Figure 25 (a) with (b) provided respectively UNE at the Iu interface network element with traditional or A interface network element when interconnected, the annexation example of backward compatibility unified interface chain of command protocol stack.

Because unified interface has been carried out above-mentioned backwards compatibility design, traditional RNC/BSC also can be connected with evolution MSC by unified interface.As shown in figure 26, it is interconnected between evolution MSC and RANC that backward compatibility unified interface not only can provide, and also can directly apply to the interconnected of evolution MSC and traditional BSC and RNC, successfully ensured the smooth evolution of existing network to 2/3G UNE.

Especially, for adopting the interconnected traditional RANC of A/Iu dual interface and core net, for guaranteeing the transparency of network integration evolution, evolution MSC can be this network element and configures two unified interface simultaneously.Two interfaces are born respectively the function of A interface and Iu-CS interface.When this tradition RANC upgrades to the evolution RANC that supports unified interface, or when after GSM logout, RANC is evolved into pure RNC network element, this kind of dual unified interface structure can transform into redundancy backup mechanism automatically, without re-starting interface configuration.

Tradition MSC and evolution RANC also can interconnect by backward compatibility unified interface.Figure 27 has provided the two schematic diagram that adopts unified interface to connect.Similarly, for the MSC that supports A interface and Iu interface simultaneously, RANC network element also can adopt two unified interface to be attached thereto, and two interfaces are set up respectively based on BSSAP and are connected with the SCCP of RANAP, bear respectively the function of A mouth and Iu interface.

In addition, it should be noted that, after the unified interface that has adopted the present embodiment four to provide, also can realize the signal transmission method of embodiment bis-and the network traffic channel assigning method of embodiment tri-, its step is identical with embodiment bis-, embodiment tri-, does not repeat them here.

Embodiment five

Five of the present embodiment improvement project for concrete signaling connection building process describes.

The signal transmission method that the embodiment of the present invention five provides, for transmitting terminal, utilizes unified interface, carries the capability indication information that unified interface is supported in indication in the request message that connects sending; For receiving terminal, utilize unified interface, receive and carry the connecting after request message of capability indication information; In the response message sending to transmitting terminal, carry the support indication information that unified interface is supported in indication.

When application layer comprises Base Station Subsystem Application Part layer and RANAP layer, Base Station Subsystem Application Part layer and RANAP layer are positioned at same layer, adjacent with URAP protocol layer, and URAP protocol layer is connected with the chain of command transport layer of unified interface protocol stack; Or Base Station Subsystem Application Part layer and RANAP layer are positioned at same layer, adjacent with URAP protocol layer, Base Station Subsystem Application Part layer, RANAP layer, URAP protocol layer are connected with the chain of command transport layer of unified interface protocol stack;

When application layer comprises Base Station Subsystem Application Part layer or RANAP layer, Base Station Subsystem Application Part layer or RANAP layer are adjacent with URAP protocol layer, and URAP protocol layer is connected with the chain of command transport layer of unified interface protocol stack; Or Base Station Subsystem Application Part layer or RANAP layer are adjacent with URAP protocol layer, Base Station Subsystem Application Part layer or RANAP layer, and URAP protocol layer is connected with the chain of command transport layer of unified interface protocol stack.

Further, this request message that connects comprises: connect request message, application layer of signaling connection control protocol SCCP connects and set up request message, be redirected any one in SCCP connection request message.

Describe respectively below:

1) SCCP connection building process

As shown in figure 28, in handoff procedure, it is similar with it that the destination end SCCP being initiated by MSC connects the process of setting up.The step of signaling connection control protocol SCCP connection building process is:

S2801, when setting up SCCP and connecting, RANC adds UR capable indication (being the indication of URAP ability) in connection request message CR, represents that Access Network side supports unified interface, current SCCP connects and can be based upon in URAP agreement.

If S2802 MSC supports unified interface, MSC, after receiving connection request message, first judges whether to exist SR capable indication.If without relevant indication, opposite end network element is traditional RNC/BSC/RANC network element, MSC carries out existing SCCP and connects flow process; If there is UR capable indication, MSC adds UR support indication (URAP supports indication) in connecting acknowledge message CC.UR support indication shows that MSC supports unified interface, and current SCCP connection has been distributed in SARP agreement by MSC.

If that RANC connects is traditional MSC, its None-identified UR capable cell, differentiates the CR message in step S2801 for traditional CR message.Correspondingly, MSC is to the CC message of RANC feedback standards.In message, not containing UR support cell, current SCCP connection is based upon on BSSAP or RANAP by existing procedure.

2) application layer signaling connection building process

As shown in figure 29, the step of BSSAP signaling connection building process is:

S2901, RANC receive after the first NAS layer of terminal signaling Forward-reques, to MSC, send COMPLETELAYER 3 INFORMATION message.This message bearing sends in the SCCP of bottom connection request CR message.Because terminal is currently located in GSM network, the SCCP connection request message based on Base Station Subsystem Application Part that CR message is standard.Because RANC supports unified interface, portability UR capable indication in the COMPLETE LAYER 3 INFORMATION message of its transmission.This indication represents Access Network side support unified interface, and current signaling connection can be based upon in URAP agreement.

If S2902 MSC supports unified interface, MSC, after receiving connection request message, first judges that in COMPLETE LAYER 3 INFORMATION message, whether carrying UR capable indicates.If without relevant indication, opposite end network element is traditional RNC/BSC/RANC network element, MSC carries out existing connection building process; If there is UR capable indication, MSC feeds back newly-increased URAP to RANC and connects acknowledge message, and indication SCCP connection is set up on URAP.This message is connected and is confirmed CC transmission of messages by SCCP.Because current scheme does not connect flow process to SCCP, modify, the SCCP based on Base Station Subsystem Application Part that CC message is standard connects acknowledge message.If MSC is traditional MSC, its nonrecognition UR capable indication, only carries out existing signaling process.

As shown in figure 30, concrete RANAP signaling connection building process step is:

S3001, RANC receive after the first NAS layer of terminal signaling Forward-reques, to MSC, send INITIAL UEMESSAGE message.This message bearing sends in the SCCP of bottom connection request CR message.Because terminal is currently located in UMTS network, the SCCP connection request message based on RANAP that CR message is standard.Because serving RAN C supports unified interface, portability URcapable indication in the INITIAL UE MESSAGE message of its transmission.This indication represents Access Network side support unified interface, and current signaling connection can be based upon in URAP agreement.

If S3002 MSC supports unified interface, MSC, after receiving connection request message, first judges that in INITIAL UE MESSAGE message, whether carrying UR capable indicates.If without relevant indication, opposite end network element is traditional RNC/BSC/RANC network element, MSC carries out existing connection building process; If there is URcapable indication, MSC feeds back newly-increased URAP to RANC network element and connects acknowledge message, and indication SCCP connection is set up on URAP.This message is connected and is confirmed CC transmission of messages by SCCP.Because current scheme does not connect flow process to SCCP, modify, the SCCP based on RANAP that CC message is standard connects acknowledge message.If MSC is traditional MSC, its nonrecognition UR capable indication, only carries out existing signaling process.

3) SCCP connects redirected flow process

As shown in figure 31, the step that redirected SCCP connects is:

S3101, when setting up SCCP and connecting, RANC indicates SSN=URAP in connection request message CR, represents that the SCCP that the request of Access Network side is set up based on URAP agreement connects.

If S3102 MSC supports unified interface, between MSC and RANC, the SCCP directly setting up based on URAP agreement is connected.Under this scene, directly perform step S3104.If MSC does not support unified interface, its SCCP that cannot set up based on URAP agreement connects.Now, MSC sends connection refused message to RANC network element, refuses current connection request.

S3103, receive after the connection refused message of MSC, RANC network element judges that MSC is as traditional MSC, and again initiates the SCCP connection request based on BSSAP or RANAP.Now, RANC need, according to the current type of being stationed network of terminal, indicate SSN=BSSAP or RANAP in request message CR.Example in Figure 31 be take BSSAP as example, shows that the SCCP that the request of Access Network side is set up based on Base Station Subsystem Application Part connects.

The SCCP connection request message that S3104, MSC send according to RANC, the SCCP that sets up respective type connects, and to the CC acknowledge message of RANC network element feedback standards.

The data processing method of this backward compatibility, can effectively expand the scope of application, has strengthened the smooth evolution of the network integration, has saved operator's networking operation cost.

Embodiment six

The method of the interface deal with data that the embodiment of the present invention six provides, shown in figure 32, the method comprises:

S3201, by unified interface protocol stack deal with data, the chain of command application layer of this unified interface protocol stack comprises for carrying the RANAP layer of the evolution of communicating by letter between the Base Station Subsystem Application Part layer of the evolution of communicating by letter between MSC and BSC and/or carrying MSC and RNC;

Wherein, when application layer comprises the Base Station Subsystem Application Part layer of evolution and the RANAP layer of evolution, the Base Station Subsystem Application Part layer of evolution and the RANAP layer of evolution are positioned at same layer, and are connected with the chain of command transport layer of unified interface protocol stack respectively; When application layer comprises the Base Station Subsystem Application Part layer of evolution or the RANAP layer of evolution, the Base Station Subsystem Application Part layer of evolution or the RANAP layer of evolution are connected with the chain of command transport layer of unified interface protocol stack.

The schematic diagram of this unified interface protocol stack of the BSSAP that comprises evolution and the RANAP of evolution as shown in figure 33.

The Base Station Subsystem Application Part layer of said evolution here, the RANAP layer of evolution refer in original Base Station Subsystem Application Part layer and RANAP layer and add RANC support function, after upgrading, obtained, in original Base Station Subsystem Application Part layer and RANAP layer, expanded a part of cell.

The method of the interface deal with data that the embodiment of the present invention provides, carries out data interaction by a unified interface rather than two interfaces of the prior art, can share the message flow of some 2/3G, carries out the structure optimization of signaling.In addition, the existing interface on all right compatible existing existing equipment of above-mentioned unified interface, can directly process and receive the message of Base Station Subsystem Application Part layer or the message of RANAP layer.

The group-network construction of embodiment mono-of still take is example, and in unified interface protocol stack, unified Access Network application function, only as functional entity, is realized by expanding original BSSAP/RANAP agreement, is not re-used as independent URAP sublayer and independently exists.Original Base Station Subsystem Application Part layer and RANAP layer, owing to having added RANC support function, upgrade to the BSSAP of evolution and the RANAP of evolution.Above-mentioned two signaling protocol layers all can directly be fitted to SCCP layer and carry out signalling.Concrete protocol stack structure as shown in figure 34.

When RANC and the evolution MSC that supports unified interface carry out signaling exchange, the SCCP that can set up based on BSSAP or RANAP signaling connects.But in arbitrary moment unified interface, only exist the SCCP signaling of a type to connect.BSSAP or RANAP message can directly be connected and be transmitted by corresponding SCCP by existing signalling mode.

When RANC and traditional MSC carry out signaling exchange, the SCCP only setting up based on BSSAP or RANAP signaling connects.Now, unified interface is carried out signalling according to the Base Station Subsystem Application Part of standard or RANAP.Similarly, when evolution MSC and BSC or RNC are interconnected, the SCCP also only setting up based on BSSAP or RANAP signaling connects, in order to BSSAP or the RANAP signaling of transmission standard.Figure 35 (a) with (b) provided respectively UNE at the Iu interface network element with traditional or A interface network element when interconnected, the annexation example of corresponding chain of command protocol stack.

Embodiment seven

When RANC and the MSC that supports the evolution of the unified interface that embodiment six provides carry out signaling exchange, the SCCP that can set up the signaling based on Base Station Subsystem Application Part layer or RANAP layer connects.But in arbitrary moment unified interface, only exist the SCCP signaling of a type to connect.The message of the message of Base Station Subsystem Application Part layer or RANAP layer can directly be connected and be transmitted by corresponding SCCP by existing signalling mode.

So, while setting up signaling connection in unified interface, need to determine that it is based on Base Station Subsystem Application Part layer or based on RANAP layer that corresponding SCCP connects, therefore, when the network that carries out RANC inside switches, by there is high-level signaling, be connected in the situation that SCCP connection status does not match.

Therefore, the network traffic channel assigning method that the embodiment of the present invention seven provides has solved this problem, as shown in Figure 36 (a), in RANC step, comprises:

Sa3601, by unified interface, receive the message from the first protocol layer of the evolution of moving exchanging center MSC, wherein, in the message of the first protocol layer of this evolution, carry associating assignment request, this associating assignment request comprises for inquiring that the channel allocation to terminal distribution is still distributed in the information in second network at first network.

Sa3602, when definite terminal need to be switched to second network, to terminal, send the request message be switched to second network.

After Sa3603, the feedback information of reception from the access second network of terminal feedback, by described unified interface, to described MSC, send the message of the second protocol layer of evolution, the message of the second protocol layer of described evolution comprise indication to the channel allocation of terminal distribution the information in described second network.

Wherein, the chain of command application layer of the protocol stack of unified interface comprises for carrying the Base Station Subsystem Application Part layer of the evolution of communicating by letter between MSC and base station controller BSC and/or carrying the RANAP layer of the evolution of communicating by letter between MSC and radio network controller (RNC); When application layer comprises the Base Station Subsystem Application Part layer of evolution and the RANAP layer of evolution, the Base Station Subsystem Application Part layer of evolution and the RANAP layer of evolution are positioned at same layer, and are connected with the chain of command transport layer of unified interface protocol stack respectively; When application layer comprises the Base Station Subsystem Application Part layer of evolution or the RANAP layer of evolution, the Base Station Subsystem Application Part layer of evolution or the RANAP layer of evolution are connected with the chain of command transport layer of unified interface protocol stack.

When the message of the message of the first protocol layer of the evolution Base Station Subsystem Application Part layer that is evolution, the message of the RANAP layer that the message of the second protocol layer of evolution is evolution; When the message of the message of the first protocol layer of the evolution RANAP layer that is evolution, the message of the Base Station Subsystem Application Part layer that the message of the second protocol layer of evolution is evolution.

Figure 36 (b) is that its step comprises as MAC mono-side:

Sb3601, the message by unified interface to the first protocol layer of radio access network controller RANC transmission evolution, wherein, in the message of the first protocol layer of this evolution, carry associating assignment request, this associating assignment request comprises for inquiring that the channel allocation to terminal distribution is still distributed in the information in second network at first network.

Sb3602, by unified interface, receive the message from the second protocol layer of the evolution of RANC, the message of the second protocol layer of this evolution comprise indication to the channel allocation of terminal distribution the information in described second network.

The unified interface of MAC side is identical with the unified interface of above-mentioned RANC side, repeats no more.

Equally, when the message of the message of the first protocol layer of the evolution Base Station Subsystem Application Part layer that is evolution, the message of the RANAP layer that the message of the second protocol layer of evolution is evolution; When the message of the message of the first protocol layer of the evolution RANAP layer that is evolution, the message of the Base Station Subsystem Application Part layer that the message of the second protocol layer of evolution is evolution.

In addition, can also introduce corresponding signaling and connect the consistency that modification process guarantees that high-level signaling connection is connected with SCCP.Be explained below.

The appointment flow process that switches to UTRAN from GERAN of take is example, and after introducing the unified interface that embodiment six provides, its process as shown in figure 37, comprising:

The RR that S3701, terminal are initiated to eat dishes without rice or wine in GSM network connects process of establishing.

S3702, initiate connection request due to current terminal object for setting up voice conversation, RR connects and has set up rear terminal and to MSC, send CM service request message by RANC, asking MSC is that voice conversation is set up MM connection.In unified interface, this message will forward by BSSAP signaling COMPLETE LAYER 3INFORMATION message.

S3703, receive that after the MM request of connect setting up of terminal, MSC initiates safety function processing procedure.Because terminal now is still arranged in GSM network, related signaling is all by corresponding BSSAP signalling.

After S3704, safety function are finished, terminal, to MSC initiation session process of establishing, is set up high-rise CC and is connected.

After S3705, CC connection has been set up, because terminal is currently located at GSM network, MSC sends expansion BSSAP message Assignment Request to RANC network element.In this signaling message, comprise the resource allocation request of 2G and 3G simultaneously.

Under S3706, this scene, RANC should be based upon 3G side according to the current radio link quality of terminal, community present load information judgment call.Therefore, RANC initiates the appointment flow process of 3G by Um Interface, and voice conversation is set up in indicating terminal access target 3G community.This appointment process can, by existing normal process, have been switched by Handover to UTRAN command; Also can be completed by the newly-increased UMTS Radio BearerSetup message of Um Interface.

S3707, due to the conversion having occurred in resource assignment process between wireless access technology, after appointment process completes, RANC sends SCCP CM message to MSC, instruct MS C connects SCCP to be transformed into RANAP entity.

S3708, receive after CM message, MSC completes the conversion that SCCP signaling connects, and to RANC network element feedback CC acknowledge message.

S3709, because terminal has now switched to 3G side, RANC network element is to MSC feedback expansion RANAP message RAB Assignment Response message, indication assigns flow process to complete.

The appointment flow process that switches to GERAN from UTRAN of take is again example, and after introducing the unified interface that embodiment six provides, its process as shown in figure 38, comprising:

The RRC that S3801, terminal are initiated to eat dishes without rice or wine in UMTS network connects process of establishing.

S3802, initiate connection request due to current terminal object for setting up voice conversation, RRC connects and has set up rear terminal and to MSC, send CM service request message by RANC, asking MSC is that voice conversation is set up MM connection.In unified interface, this message will forward by RANAP signaling INITIAL UE MESSAGE message.

S3803, receive that after the MM request of connect setting up of terminal, MSC initiates UMTS safety function processing procedure, because terminal now is still arranged in UMTS network, related signaling is all by corresponding RANAP signalling.

After S3804, safety function are finished, terminal, to MSC initiation session process of establishing, is set up high-rise CC and is connected.

After S3805, CC connection has been set up, because terminal is currently located at UMTS network, MSC sends expansion RANAP message RAB Assignment Request to RANC network element, comprises the resource allocation request of 2G and 3G in this message simultaneously.

Under S3806, this scene, RANC should be based upon 2G side according to the current radio link quality of terminal, community present load information judgment call.Therefore, RANC initiates the appointment flow process of 2G by Uu interface, and voice conversation is set up in indicating terminal access target GSM community.This appointment process can, by existing normal process, have been switched by Handover from UTRAN command; Also can be completed by the newly-increased GSM AssignmentCommand message of Uu interface.

S3807, due to the conversion having occurred in resource assignment process between wireless access technology, after appointment process completes, RANC sends SCCP CM message to MSC, instruct MS C connects SCCP to be transformed into Base Station Subsystem Application Part entity.

S3808, receive after CM message, MSC completes the conversion that SCCP signaling connects, and to RANC network element feedback CC acknowledge message.

S3909, because terminal has now switched to 2G side, RANC is to MSC feedback expansion BSSAP message Assignment Complete, indication assigns flow process to complete.

Thus, after having utilized the unified interface of embodiment six, can guarantee that high-level signaling connects the consistency being connected with SCCP.

Embodiment eight

The interface treatment facility 39 that the embodiment of the present invention eight provides, as shown in figure 39, comprising:

Uniform interface unit 3901, for passing through unified interface protocol stack deal with data, the chain of command application layer of this unified interface protocol stack comprises for carrying the Base Station Subsystem Application Part layer of communicating by letter between MSC and BSC and/or carrying the RANAP layer of communicating by letter between MSC and RNC, and URAP protocol layer; This URAP protocol layer is for the treatment of meeting the information of Base Station Subsystem Application Part layer in these data or meeting the information of RANAP layer; Wherein, when application layer comprises Base Station Subsystem Application Part layer and RANAP layer, Base Station Subsystem Application Part layer and RANAP layer are positioned at same layer, adjacent with URAP protocol layer, and URAP protocol layer is connected with the chain of command transport layer of unified interface protocol stack; When application layer comprises Base Station Subsystem Application Part layer or RANAP layer, Base Station Subsystem Application Part layer or RANAP layer are adjacent with URAP protocol layer, and URAP protocol layer is connected with the chain of command transport layer of unified interface protocol stack.

Like this, by a unified interface rather than two interfaces of the prior art, can be so that 2/3G data be passed through an interactive interfacing, and then can share the message flow of some 2/3G, can carry out the structure optimization of signaling, can reduce in prior art owing to wasting by two interfaces bearing resource that interaction data produces respectively.

Further, when the unified interface protocol stack chain of command application layer of uniform interface unit 3901 comprises Base Station Subsystem Application Part layer and RANAP layer, Base Station Subsystem Application Part layer is connected with the chain of command transport layer of unified interface protocol stack respectively with RANAP layer; When the unified interface protocol stack chain of command application layer of uniform interface unit 3901 comprises Base Station Subsystem Application Part layer or RANAP layer, Base Station Subsystem Application Part layer or RANAP layer are connected with the chain of command transport layer of unified interface protocol stack.

Like this, the existing interface on can compatible existing existing equipment, can directly process and receive the message of Base Station Subsystem Application Part layer or the message of RANAP layer.

Embodiment nine

The interface treatment facility that the embodiment of the present invention nine provides, its structure is identical with embodiment eight structures, and just uniform interface unit protocol stack is different.

The uniform interface unit of the interface treatment facility that the present embodiment provides, for passing through unified interface protocol stack deal with data, the chain of command application layer of this unified interface protocol stack comprises for carrying the Base Station Subsystem Application Part layer of the evolution of communicating by letter between MSC and BSC and/or carrying the RANAP layer of the evolution of communicating by letter between MSC and RNC; Wherein, when application layer comprises the Base Station Subsystem Application Part layer of evolution and the RANAP layer of evolution, the Base Station Subsystem Application Part layer of evolution and the RANAP layer of evolution are positioned at same layer, and are connected with the chain of command transport layer of unified interface protocol stack respectively; When application layer comprises the Base Station Subsystem Application Part layer of evolution or the RANAP layer of evolution, the Base Station Subsystem Application Part layer of evolution or the RANAP layer of evolution are connected with the chain of command transport layer of unified interface protocol stack.

Like this, by a unified interface rather than two interfaces of the prior art, can be so that 2/3G data be passed through an interactive interfacing, and then can share the message flow of some 2/3G, can carry out the structure optimization of signaling, can reduce in prior art owing to wasting by two interfaces bearing resource that interaction data produces respectively.And the existing interface on can compatible existing existing equipment, can directly process and receive the message of Base Station Subsystem Application Part layer or the message of RANAP layer.

Embodiment ten

The interface reason sending ending equipment 40 that the embodiment of the present invention provides, as shown in figure 40, comprising:

Encapsulation unit 4001, be used for according to unified interface protocol stack, the Information encapsulation of the information that comprises Base Station Subsystem Application Part layer and/or RANAP layer is become to the message of URAP protocol layer, the message of this URAP protocol layer comprises the message that is used to indicate this URAP protocol layer to be processed or is processed by RANAP layer by Base Station Subsystem Application Part layer, or the indication information of being processed by URAP protocol layer.

Transmitting element 4002, for sending the message of URAP protocol layer by described unified interface.

Further, transmitting element 4002 also for sending to receiving terminal the request message that connects, and carries the capability indication information that expresses support for unified interface in this connects solicited message.

The present invention is the interface reason sending ending equipment that strength provides, and by sending the message of URAP protocol layer, can optimize a part of signaling, saves bearing resource.

Embodiment 11

The interface that the embodiment of the present invention provides is processed receiving device 41, as shown in figure 41, comprising:

Receiving element 4101, for receiving the message of URAP protocol layer by unified interface.

Processing unit 4102, for according to the indication information of the message of URAP protocol layer, is transmitted to Base Station Subsystem Application Part layer or the processing of RANAP layer by the message of this URAP protocol layer, or is processed by URAP protocol layer.

Further, receiving element 4101, also for receiving the request message that connects that carries capability indication information.

Interface is processed receiving device 41 and is also comprised:

Feedback unit 4103, for sending the response message that carries the support indication information that expresses support for unified interface to transmitting terminal.

The present invention is that the interface that strength provides is processed receiving device, by the message of reception & disposal URAP protocol layer, can optimize a part of signaling, saves bearing resource.

The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by the described protection range with claim.

Claims

1. a method for interface deal with data, is characterized in that, comprising:

By unified interface protocol stack deal with data, described unified interface protocol stack adopts single face type to carry out data interaction in access network controller and core network element, the chain of command application layer of described unified interface protocol stack comprises for carrying the Base Station System Application Part Base Station Subsystem Application Part layer of communicating by letter between moving exchanging center MSC and base station controller BSC and/or carrying the Radio Access Network Application Part RANAP layer of communicating by letter between described MSC and radio network controller (RNC), and unified Access Network applying portion URAP protocol layer; Described URAP protocol layer is for the treatment of meeting the information of described Base Station Subsystem Application Part layer in described data or meeting the information of described RANAP layer;

2. the method for interface deal with data according to claim 1, is characterized in that,

When described application layer comprises described Base Station Subsystem Application Part layer and described RANAP layer, described Base Station Subsystem Application Part layer is connected with the chain of command transport layer of described unified interface protocol stack respectively with described RANAP layer; When described application layer comprises described Base Station Subsystem Application Part layer or described RANAP layer, described Base Station Subsystem Application Part layer or described RANAP layer are connected with the chain of command transport layer of described unified interface protocol stack.

3. a method for interface deal with data, is characterized in that, comprising:

By unified interface protocol stack deal with data, described unified interface protocol stack adopts single face type to carry out data interaction in access network controller and core network element, and the chain of command application layer of described unified interface protocol stack comprises for carrying the Base Station System Application Part Base Station Subsystem Application Part layer of the evolution of communicating by letter between moving exchanging center MSC and base station controller BSC and/or carrying the Radio Access Network Application Part RANAP layer of the evolution of communicating by letter between described MSC and radio network controller (RNC);

4. a signal transmission method, is characterized in that, comprising:

According to unified interface protocol stack, the Information encapsulation of the information that comprises Base Station System Application Part Base Station Subsystem Application Part layer and/or Radio Access Network Application Part RANAP layer is become to the message of unified Access Network applying portion URAP protocol layer, the message of described URAP protocol layer comprises the message that is used to indicate described URAP protocol layer and is processed by described Base Station Subsystem Application Part layer, or processed by described RANAP layer, or the indication information of being processed by described URAP protocol layer, described unified interface protocol stack adopts single face type to carry out data interaction in access network controller and core network element,

5. signal transmission method according to claim 4, is characterized in that, described indication information comprises indication protocol type indication information, Indication message type indication information.

6. signal transmission method according to claim 4, it is characterized in that, become the message of unified Access Network applying portion URAP protocol layer at the described Information encapsulation by the information that comprises Base Station System Application Part Base Station Subsystem Application Part layer and/or Radio Access Network Application Part RANAP layer before, the method also comprises:

To receiving terminal, send the request message that connects;

And carry the capability indication information that expresses support for unified interface in the described solicited message that connects.

7. signal transmission method according to claim 6, is characterized in that, described in the request message that connects comprise:

Connect request message, application layer of signaling connection control protocol SCCP connects and sets up request message, is redirected any one in SCCP connection request message.

8. a signal transmission method, is characterized in that, comprising:

Wherein, unified interface protocol stack adopts single face type to carry out data interaction in access network controller and core network element, the chain of command application layer of described unified interface protocol stack comprises for carrying the Base Station Subsystem Application Part layer of communicating by letter between moving exchanging center MSC and base station controller BSC and/or carrying the RANAP layer of communicating by letter between described MSC and radio network controller (RNC), and URAP protocol layer; Described URAP protocol layer is for the treatment of meeting the information of described Base Station Subsystem Application Part layer in data or meeting the information of described RANAP layer;

9. signal transmission method according to claim 8, is characterized in that, described indication information comprises indication protocol type indication information, Indication message type indication information.

10. signal transmission method according to claim 8, is characterized in that, before the described message that receives unified Access Network applying portion URAP protocol layer by unified interface, the method also comprises:

Reception carries the request message that connects of capability indication information;

To transmitting terminal, send the response message that carries the support indication information that expresses support for unified interface.

11. 1 kinds of network traffic channel assigning methods, is characterized in that, comprising:

Wherein, unified interface protocol stack adopts single face type to carry out data interaction in access network controller and core network element, the chain of command application layer of described unified interface protocol stack comprises for carrying the Base Station System Application Part Base Station Subsystem Application Part layer of communicating by letter between MSC and base station controller BSC and/or carrying the Radio Access Network Application Part RANAP layer of communicating by letter between described MSC and radio network controller (RNC), and URAP protocol layer; Described URAP protocol layer is for the treatment of meeting the information of described Base Station Subsystem Application Part layer in data or meeting the information of described RANAP layer;

12. 1 kinds of network traffic channel assigning methods, is characterized in that, comprising:

Wherein, unified interface protocol stack adopts single face type to carry out data interaction in access network controller and core network element, the chain of command application layer of described unified interface protocol stack comprises for carrying the Base Station System Application Part Base Station Subsystem Application Part layer of communicating by letter between moving exchanging center MSC and base station controller BSC and/or carrying the Radio Access Network Application Part RANAP layer of communicating by letter between described MSC and radio network controller (RNC), and URAP protocol layer; Described URAP protocol layer is for the treatment of meeting the information of described Base Station Subsystem Application Part layer in data or meeting the information of described RANAP layer;

13. 1 kinds of network traffic channel assigning methods, is characterized in that, comprising:

Wherein, unified interface protocol stack adopts single face type to carry out data interaction in access network controller and core network element, and the chain of command application layer of the protocol stack of described unified interface comprises for carrying the Base Station Subsystem Application Part layer of the evolution of communicating by letter between MSC and base station controller BSC and/or carrying the RANAP layer of the evolution of communicating by letter between described MSC and radio network controller (RNC); When described application layer comprises the Base Station Subsystem Application Part layer of described evolution and the RANAP layer of described evolution, the Base Station Subsystem Application Part layer of described evolution and the RANAP layer of described evolution are positioned at same layer, and are connected with the chain of command transport layer of described unified interface protocol stack respectively; When described application layer comprises the Base Station Subsystem Application Part layer of described evolution or the RANAP layer of described evolution, the Base Station Subsystem Application Part layer of described evolution or the RANAP layer of described evolution are connected with the chain of command transport layer of described unified interface protocol stack;

14. network traffic channel assigning methods according to claim 13, is characterized in that, in described terminal, access after described second network, the method also comprises:

By described unified interface, to described MSC, send signaling connection control protocol SCCP and connect modify request messages;

By described unified interface, receive the modification of feeding back after described MSC modification SCCP connection type and complete acknowledge message.

15. 1 kinds of network traffic channel assigning methods, is characterized in that, comprising:

Wherein, unified interface protocol stack adopts single face type to carry out data interaction in access network controller and core network element, and the chain of command application layer of described unified interface protocol stack comprises for carrying the Base Station Subsystem Application Part layer of the evolution of communicating by letter between moving exchanging center MSC and base station controller BSC and/or carrying the RANAP layer of the evolution of communicating by letter between described MSC and radio network controller (RNC); When described application layer comprises the Base Station Subsystem Application Part layer of described evolution and the RANAP layer of described evolution, the Base Station Subsystem Application Part layer of described evolution and the RANAP layer of described evolution are positioned at same layer, and are connected with the chain of command transport layer of described unified interface protocol stack respectively; When described application layer comprises the Base Station Subsystem Application Part layer of described evolution or the RANAP layer of described evolution, the Base Station Subsystem Application Part layer of described evolution or the RANAP layer of described evolution are connected with the chain of command transport layer of described unified interface protocol stack;

16. network traffic channel assigning methods according to claim 15, is characterized in that, before the message receiving from described RANC, also comprise:

The signaling connection control protocol SCCP receiving from described RANC by described unified interface connects modify request messages;

Revise after SCCP connection type, the modification of feeding back to described RANC by described unified interface completes acknowledge message.

17. 1 kinds of interface treatment facilities, is characterized in that, comprising:

Uniform interface unit, for passing through unified interface protocol stack deal with data, described unified interface protocol stack adopts single face type to carry out data interaction in access network controller and core network element, the chain of command application layer of described unified interface protocol stack comprises for carrying the Base Station System Application Part Base Station Subsystem Application Part layer of communicating by letter between moving exchanging center MSC and base station controller BSC and/or carrying the Radio Access Network Application Part RANAP layer of communicating by letter between described MSC and radio network controller (RNC), and unified Access Network applying portion URAP protocol layer; Described URAP protocol layer is for the treatment of meeting the information of described Base Station Subsystem Application Part layer in described data or meeting the information of described RANAP layer; Wherein, when described application layer comprises described Base Station Subsystem Application Part layer and described RANAP layer, described Base Station Subsystem Application Part layer and described RANAP layer are positioned at same layer, adjacent with described URAP protocol layer, and described URAP protocol layer is connected with the chain of command transport layer of described unified interface protocol stack; When described application layer comprises described Base Station Subsystem Application Part layer or described RANAP layer, described Base Station Subsystem Application Part layer or described RANAP layer are adjacent with described URAP protocol layer, and described URAP protocol layer is connected with the chain of command transport layer of described unified interface protocol stack.

18. interface treatment facilities according to claim 17, is characterized in that,

When the unified interface protocol stack chain of command application layer of described uniform interface unit comprises described Base Station Subsystem Application Part layer and described RANAP layer, described Base Station Subsystem Application Part layer is connected with the chain of command transport layer of described unified interface protocol stack respectively with described RANAP layer; When the unified interface protocol stack chain of command application layer of described uniform interface unit comprises described Base Station Subsystem Application Part layer or described RANAP layer, described Base Station Subsystem Application Part layer or described RANAP layer are connected with the chain of command transport layer of described unified interface protocol stack.

19. 1 kinds of interface treatment facilities, is characterized in that, comprising:

Uniform interface unit, for passing through unified interface protocol stack deal with data, described unified interface protocol stack adopts single face type to carry out data interaction in access network controller and core network element, and the chain of command application layer of described unified interface protocol stack comprises for carrying the Base Station System Application Part Base Station Subsystem Application Part layer of the evolution of communicating by letter between moving exchanging center MSC and base station controller BSC and/or carrying the Radio Access Network Application Part RANAP layer of the evolution of communicating by letter between described MSC and radio network controller (RNC); Wherein, when described application layer comprises the Base Station Subsystem Application Part layer of described evolution and the RANAP layer of described evolution, the Base Station Subsystem Application Part layer of described evolution and the RANAP layer of described evolution are positioned at same layer, and are connected with the chain of command transport layer of described unified interface protocol stack respectively; When described application layer comprises the Base Station Subsystem Application Part layer of described evolution or the RANAP layer of described evolution, the Base Station Subsystem Application Part layer of described evolution or the RANAP layer of described evolution are connected with the chain of command transport layer of described unified interface protocol stack.

20. 1 kinds of interface reason sending ending equipments, is characterized in that, comprising:

Encapsulation unit, be used for according to unified interface protocol stack, the Information encapsulation of the information that comprises Base Station System Application Part Base Station Subsystem Application Part layer and/or Radio Access Network Application Part RANAP layer is become to the message of unified Access Network applying portion URAP protocol layer, the message of described URAP protocol layer comprises the message that is used to indicate described URAP protocol layer and is processed by described Base Station Subsystem Application Part layer, or processed by described RANAP layer, or the indication information of being processed by described URAP protocol layer, described unified interface protocol stack adopts single face type to carry out data interaction in access network controller and core network element,

21. interface reason sending ending equipments according to claim 20, it is characterized in that, described transmitting element also for sending to receiving terminal the request message that connects, and carries the capability indication information that expresses support for unified interface in the described solicited message that connects.

22. 1 kinds of interfaces are processed receiving device, it is characterized in that, comprising:

Receiving element, for receive the message of unified Access Network applying portion URAP protocol layer by unified interface, unified interface protocol stack adopts single face type to carry out data interaction in access network controller and core network element;