CN102143602B - Method for realizing circuit switching (CS) domain service in flat and universal mobile telecommunication system (UMTS), system and equipment - Google Patents
Method for realizing circuit switching (CS) domain service in flat and universal mobile telecommunication system (UMTS), system and equipment Download PDFInfo
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- CN102143602B CN102143602B CN2011101029249A CN201110102924A CN102143602B CN 102143602 B CN102143602 B CN 102143602B CN 2011101029249 A CN2011101029249 A CN 2011101029249A CN 201110102924 A CN201110102924 A CN 201110102924A CN 102143602 B CN102143602 B CN 102143602B
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Abstract
The embodiment of the invention discloses a method for realizing circuit switching (CS) domain service in a flat and universal mobile telecommunication system (UMTS), a system and equipment. In the UMTS, a base station is connected with a CS domain user surface by an IuCS interface. The method comprises the following steps of: establishing transmission network layer connection with the CS domain user surface by the IuCS interface; and establishing wireless network layer connection with the CS domain user surface on the basis of the transmission network layer connection; and carrying out establishment of CS domain services on the basis of the wireless network layer. By using the embodiment of the invention, in the flattened UMTS network, the eHSPA (evolved high speed packet access) Node B of a core network of the CS domain user surface can be directly connected, so that the connection between the eHSPA Node B and the user surface of an MGW (Media Gateway) or an MSC (Mobile Switching Center) in the CS domain does not need extra transmission network.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of flat UMTS (Universal Mobile Telecommunications System, universal mobile telecommunications system) realize method, system and the equipment of CS (Circuit Switching, circuit switching) territory business in.
Background technology
The network configuration flattening can reduce the level of network node, is the trend of current mobile network's development.As WiMax (Worldwide Interoperability for Microwave Access, World Interoperability for Microwave Access, WiMax), LTE (Long Term Evolution, Long Term Evolution) etc. all adopt flat network configuration, and the non-flat UMTS network of network configuration, also gradually to flattening evolution.Traditional UMTS network configuration as shown in Figure 1, core net partly comprises MSC (Mobile Switching Center, mobile switching centre), SGSN (Serving GPRS Supporting Node, the GPRS serving GPRS support node), GGSN (Gateway GPRS Supporting Node, GGSN), wherein MSC is the CS domain node, user's face, chain of command after separating, MSC is decomposed into MSC Server (MSC center), two nodes of MGW (Media Gateway, media gateway).Access Network comprises RNC (Radio Network Controller, radio network controller), Node B (base station).In Fig. 1, dotted line is that User Plane (user's face), solid line are Control Plane (chain of command).
The flattening of UMT S network is that its function by the RNC node moves down into Node B for the simplification of UTRAN (Universal Terrestrial Radio Access Network, general land Mobile Access Network).UTRAN after simplification only has Node B node, and Node B connects SGSN and GGSN by the IuPS interface, by IuCS (only chain of command), connects MSC Server or MSC, but processing controls surface function only is irrelevant with the user plane functions of MSC.
Flattening UMTS access network architecture as shown in Figure 2, used eHSPA (Evolved High Speed Packet Access, the access of evolution high-speed packet) Node B, but eHSPA Node B does not support user's face of IuCS interface, make in the flat UMTS network while supporting CS territory business (typical services is voice), must rely on the Iur interface between eHSPA Node B and traditional RNC.
As shown in Figure 3, while under eHSPA Node B overlay area (being the flat network topology area of coverage), setting up CS territory business, eHSPANode B can not directly connect MGW, thereby need to use extra migration flow process, utilize IuCS interface user plane between traditional RNC and MGW and the Iur interface between eHSPA Node B and traditional RNC to complete continuing of CS territory business.
The inventor, in realizing process of the present invention, finds that at least there is following problem in prior art:
In said method, need eHSPA Node B and traditional RNC to complete the full call handshaking procedure of CS territory business by amended migration signaling.Thereby, need to carry out software upgrading to traditional RNC of existing network, this upgrading not only causes operator to increase operation and maintenance expenses use, has also increased on the other hand the time delay of data packet transmission, has reduced quality of service.
Summary of the invention
Embodiments of the invention provide a kind of method, system and equipment of realizing CS domain service in flat UMTS, at flat UMTS, independently providing the CS business.
Embodiments of the invention provide a kind of method that realizes circuit switching (CS) territory business in flat universal mobile telecommunications system UMTS, in UMTS, base station are connected by the IuCS interface with CS territory user's face, said method comprising the steps of:
Setting up transport network layer by described IuCS interface with described CS territory user's face is connected;
Setting up wireless network layer with described CS territory user's face on the basis connected at described transport network layer is connected;
Carry out the foundation of CS territory business on the basis of described wireless network layer.
Embodiments of the invention also provide a kind of equipment of realizing CS territory business in UMTS, with CS territory user's face in network, by the IuCS interface, are connected, and comprising:
Transport network layer connects sets up unit, for by described IuCS interface, with described CS territory user's face, setting up transport network layer, is connected;
Wireless network layer connects sets up unit, for connect the basis of setting up the transport network layer connection of setting up unit at described transport network layer, sets up wireless network layer by described IuCS interface with described CS territory user's face and is connected;
Business is set up unit, for connect the basis of setting up the wireless network layer connection of setting up unit at described wireless network layer, carries out the foundation of CS territory business.
Embodiments of the invention also provide a kind of UMTS system, comprising:
Base station, CS territory user's face and CS territory chain of command, described base station is connected by the IuCS interface with CS territory user's face, and is connected by the IuCS interface with CS territory chain of command,
Described base station and described CS territory user's face are mutual, and foundation is connected and the wireless network layer connection with the transport network layer between the user's face of described CS territory; And carry out the foundation of CS territory business with described CS territory user's face on the basis connected at described wireless network layer.
Compared with prior art, embodiments of the invention have the following advantages:
In flattening UMTS network, make being connected between user's face of eHSPA Node B and MGW in the CS territory or MSC not need extra transmission network.With existing method of by RNC, carrying out CS territory business continuing, compare, the embodiment of the present invention is in the situation that traditional UMTS network and flattening UMTS are network coexisted, the protocol software version that does not require RNC in the traditional UMTS network of upgrading can be realized CS territory business, not only greatly save the cost of operator, can also reduce propagation delay time, improve quality of service.
The accompanying drawing explanation
Fig. 1 is the structural representation of traditional UMTS network in prior art;
Fig. 2 is the structural representation of flattening UMTS network in prior art;
Fig. 3 realizes the schematic diagram of CS territory business at flattening UMTS network in prior art;
Fig. 4 is the networking schematic diagram of flat UMTS network in the embodiment of the present invention;
Fig. 5 is the schematic diagram of IuCS protocol stack of the interface in the embodiment of the present invention;
Fig. 6 realizes the method flow diagram of CS territory business in the flat UMTS network in the embodiment of the present invention;
Fig. 7 is the schematic diagram of IuCS interface user plane protocol while using DCH carrying CS voice in the embodiment of the present invention;
Fig. 8 is the carrying mapping configuration schematic diagram while using DCH carrying CS voice in the embodiment of the present invention;
Fig. 9 is CS audio call Establishing process figure while using DCH carrying CS voice in the embodiment of the present invention;
Figure 10 is the schematic diagram of the IuCS interface user plane protocol of down direction while using HSPA carrying CS voice in the embodiment of the present invention;
Figure 11 is the schematic diagram of the IuCS interface user plane protocol of up direction while using HSPA carrying CS voice in the embodiment of the present invention;
Figure 12 is CS audio call Establishing process figure while using HSPA carrying CS voice in the embodiment of the present invention;
Figure 13 is the carrying mapping configuration schematic diagram of down direction while using HSPA carrying CS voice in the embodiment of the present invention;
Figure 14 is the carrying mapping configuration schematic diagram of up direction while using HSPA carrying CS voice in the embodiment of the present invention;
Figure 15 is the device structure schematic diagram of realizing CS territory business in the embodiment of the present invention in UMTS.
Embodiment
A kind of method that realizes CS territory business in the flat UMTS network is provided in embodiments of the invention, and its applied networking schematic diagram as shown in Figure 4.Wherein, eHSPA Node B supports the IuCS interface user plane, and directly connects the MGW in CS territory.It is example that the eHSPA Node B of just take in Fig. 4 connects a MGW, and the quantity of the MGW that can not connect eHSPA Node B in actual networking is limited.
For this direct-connected mode, eHSPA Node B need to support the IuCS protocol stack of the interface at the IuCS interface.The content of IuCS protocol stack of the interface as shown in Figure 5, the function that eHSPA Node B need to support specifically is shown in gray area in Fig. 5, further comprises transport network layer (Transport Network Layer) and wireless network layer (Radio Network Layer).
For transport network layer: if transport network layer is used the IP transmission means, do not need transport network layer chain of command (Transport Network Control Plane) function (to be responsible for user's face AAL2 (ATM Adaptation Layer type 2, ATM Adaptation Layer type 2) establishment of connection, comprise Q.2630.2, Q.2150.1, MTP3b, SSCF-NNI, SSCOP, AAL5 etc.), and only need to provide transport network layer user plane functions (RTP/RTCP*, UDP, IP and data link layer, RTCP* means that RTCP is optional); Otherwise, if transport network layer is used ATM (Asynchronous Transfer Mode, asynchronous transfer mode) transmission means, not only need to provide transport network layer user plane functions (AAL2, ATM), and transport network layer chain of command function also will be provided.
For wireless network layer: the wireless network layer user surface function is IuUP, the transfer function that uses transmission network layer user surface (AAL2 or RTP) to provide.
Description based on above-mentioned Fig. 4 and Fig. 5, embodiments of the invention provide a kind of method that realizes CS territory business in the flat UMTS network, as shown in Figure 6, specifically comprise the following steps:
Step s601, eHSPA Node B are connected by the IuCS interface with MGW or MSC user's face in network.
When CS domain core net chain of command and user's face are separation architecture, eHSPA Node B is connected by the IuCS interface with MGW; At CS domain core net chain of command and user's face, when not separating framework, eHSPA Node B is connected by the IuCS interface with user's face of MSC.
Step s602, eHSPA Node B set up transport network layer with MGW in network or MSC user's face and are connected.
Concrete, eHSPA Node B is mutual by IuCS interface and CS territory chain of command, and described CS territory chain of command sends the RAB assignment messages; When eHSPA Node B receives the RAB assignment messages, set up transport network layer with described CS territory user's face and be connected.This transport network layer connects and comprises the connection of Internet Protocol IP transmission means or the connection of asynchronous transfer mode ATM transmission means.Under the IP transmission means, do not need to provide transport network layer chain of command function, only need to provide the transport network layer user plane functions; Under the ATM transmission means, not only need to provide transport network layer chain of command function, also need to provide the transport network layer user plane functions.
On the basis that step s603, eHSPA Node B are connected at transport network layer with MGW in network or MSC user's face, set up wireless network layer and connect.Concrete, eHSPA Node B can be undertaken alternately by Iu User Plane IuUP agreement and described CS territory user's face, sets up wireless network layer and connects.
Step s604, eHSPA Node B complete the foundation of CS business with MGW or MSC user's face in network on wireless network layer is connected.
Below take speech business as example, the method that realizes CS territory business in embodiments of the invention in the flat UMTS network is described.Wherein the CS territory is the framework that core network control surface separates with user's face, and MGW is independent entity.
Current speech business is most important business in the business of CS territory, and it further comprises AMR (Adaptive Multi-Rate, adaptive multi-rate) and AMR-WB (Wideband AMR, wideband A MR).Here take speech business as example, eHSPA Node B is described in the situation that support the realization of IuCS user's face to CS territory business, the method also is applicable to other CS territory business.The CS voice can pass through DCH (Dedicated Channel, dedicated channel) or HSPA (High Speed Packet Access, high-speed packet access) and be carried, and below these two kinds of carrying situations are described respectively.
(1) for the situation of using DCH carrying CS voice:
Concerning the voice of CS territory, traditional empty port load-supporting mode is to carry out voice-bearer by dedicated channel, and wherein transmission channel is DCH, and physical channel is DPCH (Dedicated Physical Channel, DPCH).Layer 2RLC (Radio Link Control, wireless link control) pattern using transparent mode RLC-TM (Transparent Mode, transparent mode), the user's transport layer of take is transmitted as example as ATM, and IuCS interface user plane protocol now is referring to Fig. 7.Wherein, control function in eHSPANode B (as the radio resource control RRC function) is mutual by RLC-TM agreement and UE, mutual by IuUP agreement and MGW, and RLC-TM agreement and IuUP agreement are changed mutually, by the foundation of the CS territory speech business between this process implementation UE and MGW.
While using DCH carrying CS voice, the call setup flow process of CS voice as shown in Figure 8, comprises the following steps:
Step s801, UE send RRC connection request message (RRC Connection Request) to eHSPA Node B.
Step s802, eHSPA Node B send the RRC connection to UE and set up message (RRC Connection Setup).
Step s803, UE send the RRC connection to eHSPA Node B and set up end (RRC Connection Setup Complete).
Step s804, UE send initial direct-sending message (Initial Direct Transfer) to eHSPA Node B, for request, set up for example speech business of CS business.
Step s805, eHSPA Node B send the initial user terminal message (Initial UE Message) based on RANAP to MSC Server (the chain of command entity in CS territory).
Carry out authentication, security command, call setup step between step s806, UE and MSC Server.
The RAB (Radio Access Bear, RAB) that step s807, MSC Server send based on RANAP to eHSPA Node B distributes request (RAB Assignment).
Step s808, under the ATM transmission mode, eHSPA Node B sends the foundation request (Establishment Request) based on Q.2630.2 to MGW.
Step s809, under the ATM transmission mode, (Establishment Confirm) confirmed in the foundation that MGW sends based on Q.2630.2 to eHSPA Node B.Under the IP transmission mode, do not need step s808 and s809.
Step s810, eHSPA Node B send the initial message (Initialization) based on the IuUP agreement to MGW.
Step s811, MGW send the initialization response message (Initialization Ack) based on the IuUP agreement to eHSPA Node B.
Step s812, eHSPA Node B send radio bearer to UE and set up (Radio Bearer Setup) message, set up the CS voice of DCH carrying.
Step s813, UE send radio bearer to eHSPA Node B and set up end (Radio Bearer Setup Complete) message.
Step s814, HSPA Node B send the RAB assignment response (RAB Assignment Response) based on RANAP to MSC Server.
Carry out related news mutual (as warning Alerting), call setup confirmation step between step s815, UE and MSC Server, the CS call setup between UE and MSC Server completes.
Step s816, eHSPA Node B are mutual by RLC-TM agreement and UE, mutual by IuUP agreement and MGW, and the data based on the RLC-TM agreement and the data based on the IuUP agreement are changed mutually, by the transmission of the CS territory speech business data between this process implementation UE and MGW.
While using DCH carrying CS voice, the channel mapping configuration between UE and eHSPA Node B as shown in Figure 9.Wherein, transmission channel is DCH, and logic channel is DTCH (Dedicated Traffic Channel, Dedicated Traffic Channel).Different Business Streams, by DPCH, MAC-d and RLC-TM, realizes that Business Stream is up and descending.
(2) for the situation of using HSPA carrying CS voice:
Use HSPA to refer to descending use HS-DSCH (High Speed Downlink Shared Channel, high speed descending sharing channel) be that HSDPA voice-bearer, up use E-DCH (Enhanced Dedicated Channel strengthens dedicated channel) are that HSUPA carrys out voice-bearer.While using HSPA carrying CS voice, the RLC of layer 2 can be used RLC-UM (Unacknowledged Mode, Unacknowledged Mode) pattern, also can use other patterns.
Be transmitted as example with ATM, now the IuCS interface user plane protocol of down direction is referring to Figure 10, and the IuCS interface user plane protocol of up direction is referring to Figure 11.Its difference is the agreement difference of MAC layer.Wherein, eHSPA Node B is by PDCP (Packet Data Convergence Protocol, packet data convergence protocol) agreement and UE are mutual, mutual by IuUP agreement and MGW, and PDCP agreement and IuUP agreement are changed mutually to the foundation of the CS territory speech business by uplink and downlink direction between this process implementation UE and MGW.
While using HSPA carrying CS voice, the call setup flow process of CS voice as shown in figure 12, comprises the following steps:
Wherein the content of step s1201～step s1216 is identical with the content major part in above-mentioned steps s801～step s816, at this, the content of step s1201～step s1216 is not described in detail.Difference is: the HSPA carrying is used in the CS speech business between UE and eHSPA Node B; After the CS call connection is set up, eHSPA Node B is mutual by PDCP agreement and UE, mutual by IuUP agreement and MGW, and the data based on the PDCP agreement and the data based on the IuUP agreement are changed mutually, by the transmission of the CS territory speech business data between this process implementation UE and MGW.
While using HSPA carrying CS voice, the down channel mapping configuration between UE and eHSPA Node B as shown in figure 13.Transmission channel is HS-DSCH, and logic channel is DTCH (Dedicated Traffic Channel, Dedicated Traffic Channel), and different Business Streams realizes that by PHY, MAC-hs, MAC-e, RLC-UM and PDCP Business Stream is descending.
While using HSPA carrying CS voice, the up channel mapping configuration between UE and eHSPA Node B as shown in figure 14.Transmission channel is E-DCH, and logic channel is DTCH, and different Business Streams realizes that by PHY, MAC-es/MAC-e, MAC-d, RLC-UM and PDCP Business Stream is up.
The method that the application of the invention embodiment provides, in flattening UMTS network, realize directly connecting the eHSPA Node B of CS territory user's face core net, made being connected between user's face of eHSPA Node B and MGW in the CS territory or MSC not need extra transmission network.With existing method of by RNC, carrying out CS territory business continuing, compare, the embodiment of the present invention is on the not impact of traditional structure UMTS network, in the situation that traditional UMTS network and flattening UMTS are network coexisted, the protocol software version that does not require RNC in the traditional UMTS network of upgrading can be realized CS territory business, not only greatly save the cost of operator, depend on the situation of Iur interface simultaneously with respect to prior art, will reduce propagation delay time, improve quality of service.
Embodiments of the invention also provide a kind of equipment of realizing CS territory business in UMTS, and this equipment is connected and is specifically as follows enhancing high-speed packet access base station eHSPA NodeB by the IuCS interface with CS territory user's face in network, as shown in figure 15, comprising:
Transport network layer connects sets up unit 10, for by described IuCS interface, with described CS territory user's face, setting up transport network layer, is connected;
Wireless network layer connects sets up unit 20, for connect the basis of setting up the transport network layer connection of setting up unit at described transport network layer, sets up wireless network layer by described IuCS interface with described CS territory user's face and is connected;
Business is set up unit 30, for connect the basis of setting up the wireless network layer connection of setting up unit at described wireless network layer, carries out the foundation of CS territory business.This business is set up unit 30 and is further comprised:
The first business is set up subelement 31, for mutual by IuUP agreement and CS territory user's face, and the data based on the IuUP agreement that receive from CS territory user's face and the data based on the RLC-TM agreement that receive from subscriber terminal side are changed mutually to the foundation of the CS territory speech business of uplink and downlink direction between realization and CS territory user's face; And/or
The second business is set up subelement 32, for mutual by IuUP agreement and CS territory user's face, and the data based on the IuUP agreement that receive from CS territory user's face and the data based on the PDCP agreement that receive from subscriber terminal side are changed mutually, realize the foundation of the CS territory speech business of uplink and downlink direction between the user's face of CS territory.
Embodiments of the invention also provide a kind of UMTS system, comprising:
，YuCS territory, base station user's face connects by the IuCS interface, and is connected with CS territory chain of command, and for mutual with described CS territory user's face and CS territory chain of command, foundation is connected and the wireless network layer connection with the transport network layer between the user's face of described CS territory; Carry out the foundation of CS territory business with described CS territory user's face on the basis connected at described wireless network layer.This base station can be for strengthening high-speed packet access base station eHSPANodeB, and its structure as shown in figure 15.
CS territory user's face, be connected by the IuCS interface by CS territory user's face with described base station, and for setting up with described base station, transport network layer is connected and wireless network layer connects, and sets up the CS business with described base station.
CS territory chain of command, be connected with described base station, and for mutual with described base station, and described base station connects.
The system that the application of the invention embodiment provides and equipment, in flattening UMTS network, realize directly connecting the eHSPANode B of CS territory user's face core net, made being connected between user's face of eHSPANode B and MGW in the CS territory or MSC not need extra transmission network.With existing method of by RNC, carrying out CS territory business continuing, compare, the embodiment of the present invention is on the not impact of traditional structure UMTS network, in the situation that traditional UMTS network and flattening UMTS are network coexisted, the protocol software version that does not require RNC in the traditional UMTS network of upgrading can be realized CS territory business, not only greatly saves the cost of operator; Depend on the situation of Iur interface simultaneously with respect to prior art, will reduce propagation delay time, improve quality of service.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential general hardware platform by software and realize, can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Understanding based on such, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in a storage medium, comprises that some instructions are used so that an equipment is carried out the described method of each embodiment of the present invention.
Above disclosed be only several specific embodiment of the present invention, still, the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (9)
1. realize the method for circuit switching (CS) territory business in a flat universal mobile telecommunications system UMTS, it is characterized in that, in UMTS, base station is connected by the IuCS interface with CS territory user's face, said method comprising the steps of:
Setting up transport network layer by described IuCS interface with described CS territory user's face is connected; Wherein, when CS domain core net chain of command and user's face are separation architecture, by the IuCS interface, with media gateway MGW, be connected; At CS domain core net chain of command and user's face, when not separating framework, by the IuCS interface, with user's face of moving exchanging center MSC, be connected;
Setting up wireless network layer with described CS territory user's face on the basis connected at described transport network layer is connected;
Carry out the foundation of CS territory business on the basis of described wireless network layer, wherein, when described CS territory business is while using the CS speech business of dedicated channel DCH transmission, the foundation of described CS territory business specifically comprises: the data based on the IuUP agreement that receive from CS territory user's face and the data based on wireless link control transparent mode RLC-TM agreement that receive from subscriber terminal side are changed mutually to the foundation of the CS territory speech business of uplink and downlink direction between realization and CS territory user's face; When described CS territory business accesses the CS speech business of HSPA transmission for the use high-speed packet, the foundation of described CS territory business specifically comprises: the data to the data based on the IuUP agreement that receive from CS territory user's face and the group-based data centralization agreement PDCP agreement received from subscriber terminal side are changed mutually, realize the foundation of the CS territory speech business of uplink and downlink direction between the user's face of CS territory.
2. realize as claimed in claim 1 the method for CS territory business in UMTS, it is characterized in that,
When CS domain core net chain of command and user's face are separation architecture, described CS territory mask user body is media gateway MGW;
At CS domain core net chain of command and user's face when not separating framework, user's face that described CS territory mask user body is moving exchanging center MSC.
3. realize as claimed in claim 1 the method for CS territory business in UMTS, it is characterized in that, describedly set up by described IuCS interface and described CS territory user's face the step that transport network layer is connected and specifically comprise:
Mutual by described IuCS interface and CS territory chain of command, receive the RAB assignment messages that described CS territory chain of command sends;
While receiving described RAB assignment messages, set up transport network layer with described CS territory user's face and be connected.
4. realize as claimed in claim 1 the method for CS territory business in UMTS, it is characterized in that, set up with described CS territory user's face the step that wireless network layer is connected on the described basis connected at described transport network layer and specifically comprise:
Undertaken alternately by Iu User Plane IuUP agreement and described CS territory user's face, set up wireless network layer and connect.
5. realize as claimed in claim 1 the method for CS territory business in UMTS, it is characterized in that, described CS territory business is while using the CS speech business of dedicated channel DCH transmission, in uplink and downlink direction and mutual the used transmission channel of user terminal, be dedicated channel DCH, the logic channel used is Dedicated Traffic Channel DTCH.
6. realize as claimed in claim 1 the method for CS territory business in UMTS, it is characterized in that, when described CS territory business accesses the CS speech business of HSPA transmission for the use high-speed packet, at down direction and mutual the used transmission channel of user terminal, be high speed downlink shared channel HS-DSCH, the logic channel used is Dedicated Traffic Channel DTCH; At up direction and mutual the used dedicated channel E-DCH of transmission channel for strengthening of user terminal, the logic channel used is Dedicated Traffic Channel DTCH.
7. an equipment of realizing CS territory business in UMTS, is characterized in that, described equipment is connected by the IuCS interface with CS territory user's face in network, and described equipment comprises:
Transport network layer connects sets up unit, for by described IuCS interface, with described CS territory user's face, setting up transport network layer, is connected; Wherein, when CS domain core net chain of command and user's face are separation architecture, by the IuCS interface, with media gateway MGW, be connected; At CS domain core net chain of command and user's face, when not separating framework, by the IuCS interface, with user's face of moving exchanging center MSC, be connected;
Wireless network layer connects sets up unit, for connect the basis of setting up the transport network layer connection of setting up unit at described transport network layer, sets up wireless network layer by described IuCS interface with described CS territory user's face and is connected;
Business is set up unit, for connect the basis of setting up the wireless network layer connection of setting up unit at described wireless network layer, carries out the foundation of CS territory business, and wherein, described business is set up unit and further comprised:
The first business is set up subelement, change mutually the foundation of the CS territory speech business of uplink and downlink direction between realization and CS territory user's face for the data based on the IuUP agreement to receiving from CS territory user's face and from the data based on the RLC-TM agreement of subscriber terminal side reception; And/or
The second business is set up subelement, change mutually for the data based on the IuUP agreement to receiving from CS territory user's face and from the data based on the PDCP agreement of subscriber terminal side reception, realize the foundation of the CS territory speech business of uplink and downlink direction between the user's face of CS territory.
8. realize as claimed in claim 7 the equipment of CS territory business in UMTS, it is characterized in that, realize in described UMTS that the equipment of CS territory business is specially enhancing high-speed packet access base station eHSPANodeB.
9. a UMTS system, is characterized in that, comprising: base station, CS territory user's face and CS territory chain of command, and described base station is connected by the IuCS interface with CS territory user's face, and is connected by the IuCS interface with CS territory chain of command,
Described base station and described CS territory user's face are mutual, and foundation is connected and the wireless network layer connection with the transport network layer between the user's face of described CS territory; And carry out the foundation of CS territory business with described CS territory user's face on the basis connected at described wireless network layer, wherein, when described CS territory business is while using the CS speech business of dedicated channel DCH transmission, the foundation of described CS territory business specifically comprises: the data based on the IuUP agreement that receive from CS territory user's face and the data based on wireless link control transparent mode RLC-TM agreement that receive from subscriber terminal side are changed mutually to the foundation of the CS territory speech business of uplink and downlink direction between realization and CS territory user's face; When described CS territory business accesses the CS speech business of HSPA transmission for the use high-speed packet, the foundation of described CS territory business specifically comprises: the data to the data based on the IuUP agreement that receive from CS territory user's face and the group-based data centralization agreement PDCP agreement received from subscriber terminal side are changed mutually, realize the foundation of the CS territory speech business of uplink and downlink direction between the user's face of CS territory.
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| CN2008100838225A Division CN101527967B (en) | 2008-03-06 | 2008-03-06 | Method, system and device for realizing CS domain service in flat UMTS |
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| CN102143602B true CN102143602B (en) | 2013-12-04 |
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| CN1816022A (en) * | 2005-02-05 | 2006-08-09 | 华为技术有限公司 | Method and system for realizing bidirectional alternative operation of circuit field and group field |
| CN101060664A (en) * | 2006-04-21 | 2007-10-24 | 中兴通讯股份有限公司 | A TD-SCDMA technology-based wireless cluster communication system |
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| CN1816022A (en) * | 2005-02-05 | 2006-08-09 | 华为技术有限公司 | Method and system for realizing bidirectional alternative operation of circuit field and group field |
| CN101060664A (en) * | 2006-04-21 | 2007-10-24 | 中兴通讯股份有限公司 | A TD-SCDMA technology-based wireless cluster communication system |
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