CN1499850A - Method for building transmission load supporting in general mobile communication system - Google Patents
Method for building transmission load supporting in general mobile communication system Download PDFInfo
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Abstract
The invention relates to method for building transmission load supporting in Universal Mobile Telecom System (UMTS). Based on mapping relation between IP address in Mobile Services Switching Center (MSC) and ATM address of MSC, when MSC with IP transmission being supported launches building transmission load supporting with Radio Network Controller (RNC) possessing dual stacks of ATM/IP, if IP transmission resources of RNC runs out, but ATM has vacant transmission resources, then based on IP information of transmission load supporting provided by MSC for building transmission load supporting, RNC derives ATM marking information of transmission load supporting from the mapping relation. Further, using unoccupied ATM resources through IWU and MSC to complete building transmission load supporting. The invention makes possible to utilize spare ATM transmission resources to complete building transmission load supporting.
Description
Technical field
The present invention relates to moving communicating field, relate in particular in the universal mobile telecommunications system (UMTS UniversalMobile Telecommunications System) method for building up of transmission bearer.
Technical background
UMTS (Universal Mobile Telecommunication Systems: universal mobile telecommunications system) be the 3-G (Generation Three mobile communication system) that adopts the WCDMA air interface.Usually also the UMTS system is called the WCDMA communication system.The UMTS system applies structure the same with second generation mobile communication system, it comprises some logical network unit.Different network element can be on function, also can divide into groups from the different subnet (Subnetwork) under it.
On function, network element can be divided into Radio Access Network (RAN Radio Access Network) and core net (CN Core Network).Wherein Radio Access Network comprises two functional entitys in wireless base station (Node B) of radio network controller (RNCRadio Network Controller) and WCDMA, be used to handle all and wireless function associated, and CN is made up of mobile services switching centre (MSC Mobile ServicesSwitching Center) and Serving GPRS Support Node (SGSN Serving GPRS Support Node), handles that all voice calls in the UMTS system are connected with data and the exchange and the route of external network.(User Equipment UE) has constituted whole UMTS system together for said two units and subscriber equipment.Its system configuration as shown in Figure 1.
Interface in the 3G network between core net and Access Network is the interface (Iu) between RNC and the core network, as shown in Figure 2.
The protocol architecture of each interface of UTRAN all is to design according to a general protocol model.The principle of design is that layer and face logically are separate.If desired, can revise the part of protocol architecture and need not to change other parts, as shown in Figure 3.
1, " layer " of horizontal direction
From the layer of horizontal direction, this protocol architecture mainly comprises two-layer: wireless network layer and transport network layer.All agreements relevant with land radio access web are included in wireless network layer, and transport network layer refers to by the transmission technology of the selected standard of UTRAN, and are irrelevant with the specific function of UTRAN.
2, " face " of vertical direction
For the face of vertical direction, chain of command, user's face, transmission network chain of command are arranged and be contained in transmission network user face among the above two.
A) chain of command
Chain of command comprises application protocol (just Radio Access Network Application Part (RANAP Radio AccessNetwork Application Part), Radio Network Subsystem Application Part (RNSAP Radio NetworkSubsystem Application Part) and base station application part (NBAP Node B Application Part)) and transmits the signaling bear of these application protocols.
Application protocol is used to the RAB of wireless network layer or Radio Link to set up carrying.The bearing parameter of application protocol is not directly related with user's surface technology, is some general bearing parameters.
The signaling bear of application protocol is usually by Operation and Maintenance (O﹠amp; M Operation and Maintenance) sets up.
B) user's face
User's face comprises the carrying of data flow and data flow.Data flow is exactly the various Frame Protocols of relevant interface.
C) transmission network chain of command
The transmission network chain of command does not comprise the information of wireless network layer, is positioned at transport network layer fully.It comprises Access Link Control Application Protocol (ALCAP Access Link Control Application Protocol) (the ALCAP agreement is used for setting up transmission bearer for user's face) and the carrying of ALCAP protocol signaling.
The transmission network chain of command is between chain of command and user's face.Introduce the transmission network chain of command, make the separate possibility that becomes of transmission bearer technology of application protocol and user face data of wireless network layer chain of command.The signaling bear of ALCAP also is by O﹠amp usually; M sets up.
D) transmission network user face
Also belong to transmission network user face in Data-carrying in user's face and the signaling bear in the application protocol.In real-time operation, the transmission bearer of transmission network user face data is directly actuated by the transmission network chain of command, and the signaling bear of application protocol is then by O﹠amp; M sets up.
UMTS has three versions at present, R99 version, R4 version and R5 version.Wherein the transmission technology of R99 version and R4 version wireless access network side is based on ATM's, because the plurality of advantages of IP technology self and the impact of global ip tide, the UMTS network is determined to the trend of all-IP evolution, at the R5 version, Access Network is classified the IP transmission with ATM transmission ground network transmission means arranged side by side as and is selected.
Introduce and to see from the front, because the UTRAN protocol stack of the interface has wireless network layer and transport network layer separated structures, so can under to the minimum situation of wireless network layer influence, introduce the IP transmission.
As shown in Figure 4, set up the process of user data transmission carrying when being to use the ATM transmission between MSC and the RNC, it comprises:
The first step: between MSC and RNC, set up a new user data transmission carrying (for example: a user in the RNC initiates audio call one time) if desired, the wireless access network applying portion (RANAP) of MSC will distribute a binding logo (BID Binding ID) for this transmission bearer, distributes the transfer resource that needs for user data simultaneously.MSC sets up request message by a wireless network control face, the ATM transport layer address of this binding logo and MSC oneself is issued the wireless access network applying portion of RNC.
Second step: after the wireless access network applying portion of RNC has been received above-mentioned message, the Access Link Control Application Protocol (ALCAP Access Link Control Application Protocol) of the transmission network chain of command that will pass to RNC to wherein ATM transport layer address and binding logo, and require Access Link Control Application Protocol to initiate the foundation of transmission bearer.
The 3rd step: the Access Link Control Application Protocol of RNC sends an ALCAP to the Access Link Control Application Protocol of MSC and sets up request message, includes the binding logo and the ATM transport layer address of receiving in second step in the message.After MSC receives that this ALCAP sets up request message, just can set up the user data that needs to transmit in the request and the first step to this transmission bearer and associate by wherein binding logo, transport layer address.
Set up the process of user data transmission carrying when using the IP transmission between MSC and the RNC:
ATM is a Connection-oriented Protocol, and setting up the user data transmission carrying time needs the ALCAP agreement to set up ATM/AAL2 between MSC and RNC to be connected.And IP is different from ATM, and IP is connectionless agreement, does not therefore need Access Link Control Application Protocol to connect.
If RNC and MSC are the nodes of pure IP transmission, set up the process of user data transmission carrying between the two:
The first step: between MSC and RNC, set up a new user data transmission carrying (for example: a user in the RNC initiates audio call one time) if desired, the wireless access network applying portion (RANAP) of MSC will distribute User Datagram Protoco (UDP) (the UDP User DatagramProtocol) port of a free time for this transmission bearer, MSC sets up request message by a wireless network control face, and the wireless access network applying portion of RNC is just issued in the IP address of MSC in the transport layer address of this udp port number and MSC oneself.
Second step: after the wireless access network applying portion of RNC has been received above-mentioned message, the udp port that also distributes a free time for this transmission bearer, RNC sets up response message by a wireless network control face, and the wireless access network applying portion of MSC is just issued in the IP address of RNC in the transport layer address of this udp port number and RNC oneself.So far, RNC and MSC know the transmission bearer resource of distributing for this user data the opposite end i.e. " IP address+udp port number " respectively, and the user data transmission carrying is also set up and finished.
IP address in wireless network control face message and udp port number in above-mentioned two steps transmit by the existing transport layer of wireless network control face address IE and binding logo IE.
If MSC is different with the transport protocol stack of RNC, for example working as MSC only has IP stack, RNC that the situation of ATM protocol stack is only arranged, and setting up transmission bearer if desired then need be by interworking unit IWU.For the node of only supporting the ATM transmission, interworking unit can shield all characteristics of IP transmission node, sets up transmission bearer by interworking unit and the node of only supporting the IP transmission, just as same ATM transmission node is set up transmission bearer.
Between the IP transmission node is with interworking unit, need IP ALCAP agreement, be used for assisting interworking unit and ATM transmission node to set up the transmission bearer of ATM.
Because MSC and RNC are except the single stack of IP, the single stack of ATM, also may have the two stacks of ATM/IP, so various intercommunication combinations have 9 kinds, and are in the present UMTS agreement, as shown in table 1 to the processing method of these 9 kinds of situations: Iu-CS interface user face command transmitting intercommunication scheme
| MSC-R ??NC | The wireless network control face that MSC mails to RNC is set up the transmission bearer address information that comprises in the request message | The wireless network control face that RNC mails to MSC is set up the transmission bearer address information that comprises in the response message | Remarks | |
| ??1 | ??ATM-A ??TM | ??-E.164?TLA ??-Binding?Id | RNC initiates ATM-ALCAP does not need IWU | |
| ??2 | ??ATM-I ??P | ??-E.164?TLA ??-Binding?Id | RNC initiates IP-ALCAP needs IWU | |
| ??3 | ??IP-AT ??M | ??-E.164?TLA ??-Binding?Id | RNC initiates ATM-ALCAP needs IWU | |
| ??4 | ??IP-IP | ??-IP?address ??-UDP?port | ??-IP?address ??-UDP?port | Do not need ALCAP |
| ??5 | ??ATM-A ??TM&IP | ??-E.164?TLA ??-Binding?Id | RNC initiates ATM-ALCAP does not need IWU | |
| ??6 | ??IP-AT ??M&IP | ??-IP?address ??-UDP?port | ??-IP?address ??-UDP?port | Do not need ALCAP |
| ??7 | ??IP&AT ??M-AT ??M | ??-E.164?TLA ??-Binding?Id | Do not need IWU RNC to initiate ATM-ALCAP | |
| ??8 | ??IP&AT ??M-IP | ??-IP?address ??-UDP?port | ??-IP?address ??-UDP?port??- | Do not need ALCAP |
| ??9 | ??IP&AT ??M-IP& ??ATM | ??-IP?address ??-UDP?port | ??-IP?address ??-UDP?port ??- | Do not need ALCAP |
Table 1 Iu-CS interface user face command transmitting intercommunication scheme
The 6th and the 9th kind of situation in table 1, promptly support the MSC (IP stack is only arranged or have the two stacks of ATM/IP) of IP transmission initiate with the RNC with ATM/IP pair of stacks between transmission bearer when setting up, MSC will preferentially use IP to initiate to set up with the transmission bearer of RNC, promptly set up and have the idle udp port that distributes for user data carrying number and MSC its own IP address in the request message at the wireless network control face of issuing RNC, if this moment, the IP transfer resource of RNC was used up but the ATM transfer resource also has idle, because MSC can not set up at the wireless network control face and carry ATM transmission bearer address information in the request message simultaneously, so RNC can not utilize idle ATM transfer resource and MSC to set up transmission bearer.
Summary of the invention
The purpose of this patent is exactly in the UMTS wireless communication system, support the MSC (IP stack is only arranged or have the two stacks of ATM/IP) of IP transmission initiate with the RNC with ATM/IP pair of stacks between transmission bearer when setting up, the ATM transfer resource also has idle if the IP transfer resource of RNC is used up, then RNC can utilize the IP transmission bearer information that MSC provides, derive the ATM transmission bearer information of MSC, use idle ATM transfer resource to finish the foundation of transmission bearer by IWU and MSC.
Set up the method for transmission bearer in a kind of universal mobile telecommunications system, it is characterized in that: utilize the mapping relations between the atm address of the IP address of mobile services switching centre (MSC Mobile Services Switching Center) and MSC, when the MSC that supports the IP transmission initiate with the radio network controller (RNC Radio Network Controller) with the two stacks of ATM/IP between transmission bearer when setting up, the ATM transfer resource also has the free time if the IP transfer resource of RNC is used up; Then the IP transmission bearer information that provided for setting up transmission bearer by MSC of RNC derives ATM transmission bearer identification information by these mapping relations, and then uses idle ATM transfer resource to finish the foundation of transmission bearer by IWU and MSC.
Described IP transmission bearer information is meant: MSC mails to IP transport layer address IE and the binding logo IE of RNC in order to set up transmission bearer, is used for unique identification MSC and sets up the transfer resource that is distributed for transmission bearer.
Described ATM transmission bearer information is meant: RNC mails to ATM transport layer address IE and the binding logo IE of IWU in order to finish transmission bearer to set up, be used for the transfer resource that unique identification MSC distributes for transmission bearer sets up.
Described binding logo IE meets existing standard, only is used to transmit User Datagram Protoco (UDP) (the UDP User Datagram Protocol) port numbers that MSC distributes for transmission bearer sets up.
Described binding logo IE can also carry the information of the IP address of the aforesaid udp port of sign number pairing MSC by wherein idle byte.
Set up the method for transmission bearer in the described universal mobile telecommunications system, may further comprise the steps when setting up the user data transmission carrying:
A, MSC distribute the udp port number of a free time for the IP transmission bearer of setting up user data, and this port numbers and corresponding IP address mail to RNC by IP transport layer address IE and binding logo IE, be used for unique identification MSC and set up the transfer resource that is distributed for transmission bearer;
The wireless access network applying portion of b, RNC judges whether its IP transfer resource is used up, if enter step c, otherwise directly utilize the IP transfer resource to set up transmission bearer;
C, RNC find the atm address of MSC by looking into mapping table, and RNC passes to oneself transmission network chain of command with ATM transport layer address and binding logo, use Access Link Control Application Protocol to initiate the foundation of ATM transmission bearer;
After d, IWU receive that this ATM transmission bearer is set up request, determine MSC according to this ATM transport layer address, use the IP transmission bearer between the foundation of IP ALCAP agreement and this MSC then, send IP ALCAP to MSC and set up request message, described IP ALCAP sets up and includes the binding logo that IWU receives in the request message, and the destination address of this message is the IP address that IWU finds according to the atm address of MSC;
After e, MSC receive that the IP ALCAP of IWU sets up request message,, set up transmission bearer according to the information of carrying in the purpose IP address of message and the binding logo IE.
Owing to adopted the method for setting up transmission bearer of the present invention, can (refer to that MSC can support the IP transmission at least at the MSC that supports the IP transmission, comprise the situation that MSC supports IP and ATM transmission simultaneously) initiate with the RNC with ATM/IP pair of stacks between transmission bearer when setting up, the ATM transfer resource also has idle if the IP transfer resource of RNC is used up, then RNC can utilize the IP transmission bearer information that MSC provides, derive the ATM transmission bearer information of MSC, and use idle ATM transfer resource to finish the foundation of transmission bearer by IWU and MSC, thereby the transmission bearer of finishing that can be successful is set up.
Description of drawings
Fig. 1 is a 3G network structure chart in the prior art;
Fig. 2 is the interface schematic diagram between core net and Access Network in the 3G network;
Fig. 3 is the schematic diagram of UTRAN protocol stack of the interface;
Fig. 4 is in the prior art, and the transmission bearer when MSC and RNC are the ATM transmission is set up schematic flow sheet;
Fig. 5 is that the IP transmission node is by interworking unit and ATM transmission contact intercommunication schematic diagram;
Fig. 6 is the schematic flow sheet that the present invention sets up transmission bearer.
Embodiment
Below in conjunction with Figure of description the specific embodiment of the present invention is described.
At the shortcoming of prior art, solution of the present invention is:
RNC utilizes the IP transmission bearer information of MSC, be IP transport layer address and the binding logo of MSC, derive ATM transmission bearer identification information by the IP address of MSC and the mapping relations of atm address, be ATM transport layer address and the binding logo of MSC, and then use idle ATM transfer resource to finish the foundation of transmission bearer by IWU and MSC.
At this, the ATM transport layer address of MSC is actually the ATM transport layer address that ends in IWU, and IWU can pass through the unique definite MSC in this transport layer address.
The IP address of MSC and udp port number transmit by wireless network control face existing " transport layer address IE " and " binding logo IE ".Whether by binding logo IE being expanded, the present invention can distinguish the mapping scheme of the IP address of two kinds of MSC to atm address:
1, binding logo IE meets existing standard fully, promptly only is used to transmit the udp port number of MSC;
2, expand binding logo IE, except carrying udp port number, utilize wherein idle byte to carry the information of the IP address of sign udp port number pairing MSC.
The consideration that proposes these two kinds of differentiations is as described below:
Get rid of the port of well-known (well known), the udp port address space of an IP address has only at most about 60,000 5 thousand, and just following the transmission bearer quantity that can create in an IP address has only 60,000 5 thousand.And the transmission bearer quantity that MSC sets up simultaneously can be very huge, so adopt at MSC under the situation of IP transmission, MSC can have a plurality of IP address.
As shown in Figure 6, through after the above-mentioned setting, the present invention can may further comprise the steps when setting up the user data transmission carrying:
A, MSC are for the udp port of the IP transmission bearer allocation of transmission resources-of setting up user data number, and this port numbers and corresponding IP address mail to RNC by IP transport layer address IE and binding logo IE, be used for unique identification MSC and set up the transfer resource that is distributed for transmission bearer;
As need set up a new user data transmission carrying between MSC and RNC the time, the wireless access network applying portion (RANAP) of MSC will be that this transmission bearer distributes necessary transfer resource, the i.e. udp port of a free time.MSC sets up request message by a wireless network control face, this udp port number and corresponding IP address is issued the wireless access network applying portion of RNC.
The wireless access network applying portion of b, RNC judges whether its IP transfer resource is used up, if enter step c, otherwise directly utilize the IP transfer resource to set up transmission bearer;
After the wireless access network applying portion of RNC has been received above-mentioned message, at first judge the operating position of its transfer resource,, then use this IP resource if its IP transfer resource is also enough set up transmission bearer, what like this, in fact take is that transmission bearer of the prior art is set up mode; If the IP transfer resource of RNC is used up, and its ATM transfer resource also has residue, and prior protocols does not then provide this solution how to handle in this case.The present invention adopts following steps, sets up transmission bearer by the ATM transfer resource of RNC free time.
C, RNC find the atm address of MSC by looking into mapping table, and RNC passes to oneself transmission network chain of command with ATM transport layer address and binding logo, use Access Link Control Application Protocol to initiate the foundation of ATM transmission bearer;
If RNC finds the IP transfer resource of oneself and uses up that then RNC is found the atm address of MSC by looking into this mapping table by the IP address of MSC.RNC passes to oneself transmission network chain of command with ATM transport layer address and binding logo then, uses Access Link Control Application Protocol to initiate the foundation of ATM transmission bearer.
After d, IWU receive that this ATM transmission bearer is set up request, determine MSC according to this ATM transport layer address, use the IP transmission bearer between the foundation of IP ALCAP agreement and this MSC then, send IPALCAP to MSC and set up request message, described IP ALCAP sets up and includes the binding logo that IWU receives in the request message, and the destination address of this message is the IP address that IWU finds according to the atm address of MSC;
After e, MSC receive that the IP ALCAP of IWU sets up request message,, just can associate, thereby set up transmission bearer with the resource of distributing among the step a for transmission bearer according to the information of carrying in the purpose IP address of message and the binding logo IE.
By whether binding logo IE being expanded, can distinguish the mapping scheme of the IP address of two kinds of MSC, that is: to atm address
1, binding logo IE meets existing standard fully, promptly only is used to transmit the udp port number of MSC;
2, expand binding logo IE, except carrying udp port number, utilize wherein idle byte to carry the information of distinguishing the MSC different IP addresses.
So, at different mapping schemes, in fact slightly different with the processing method of RNC at MSC.
For first kind of scheme, because only carry udp port number among the binding logo IE, so determine that for unique a user data carries, after changing mutually through twice between IP address and the atm address, the IP address must remain unchanged, promptly the IP address that must be the udp port correspondence by the anti-IP address of finding of atm address can not be other IP address of MSC.Therefore require the MSC that determines that the ATM transport layer address of a MSC not only can be unique, and an essential IP address that can unique definite MSC.For a MSC who has a plurality of IP address, will have at least with the suitable ATM transport layer address of its IP number of addresses corresponding with it.
For second mapping scheme, be binding logo IE because the wireless network control face that mails to RNC at MSC sets up that being used in the request message carry udp port number, binding logo IE length has 4 bytes, and udp port length only is two bytes.So can utilize two idle among binding logo IE bytes to carry the information of udp port number pairing IP address, be used to distinguish the different IP addresses in the MSC.Because additional IP address information is just made an explanation by the MSC of these information of filling, other network element does not need to understand its composition rule.So the form of additional IP address information can be stipulated voluntarily when realizing by the manufacturer of MSC, can not had influence on the opening of Iu interface.Example in an additional IP address information of this measure: suppose that MSC has 100 IP addresses, then MSC can be numbered these 100 IP addresses, uses the numbering of these IP addresses just can represent the different IP address of MSC.When the IP of RNC transfer resource was enough, RNC need not comprehend among the binding logo IE additional information, only used udp port number wherein.This promptly is a flow processing of the prior art, if when the IP transfer resource of RNC exhausts, RNC initiates the binding logo IE that the binding logo of ATM ALCAP just directly adopts MSC to send to IWU.Owing to comprise additional IP address information among the binding logo IE, in the step e of flow process, MSC only needs just can restore " IP address+udp port number " fully by binding logo IE.So an ATM transport layer of minimum the needs in all the IP addresses map addresses of MSC is just passable, require this ATM transport layer address can a unique corresponding MSC.
More than two kinds of schemes can both satisfy the demands, difference is:
1, to representing the ATM transport layer address space demand difference of MSC: first kind of scheme requires each IP address of MSC to have at least an ATM transport layer address corresponding with it; And second kind of scheme minimum as long as one can unique expression MSC ATM transport layer address.Because a MSC may have a large amount of IP addresses, first kind of scheme requires each IP address of MSC all to distribute an atm address at least, then may have greater impact to existing ATM address assignment, administrative mechanism.Introduce second kind of scheme and then can avoid this problem.
2, whether needing that wireless network layer is set up the binding logo IE that is used to carry udp port number in the request message expands: first kind of scheme do not need expansion, and second kind of scheme need be carried additional information and be used for distinguishing the different IP address of MSC in binding logo IE.
The present invention is by above scheme, can well solve at the MSC that supports the IP transmission and (refer to that MSC can support the IP transmission at least, comprise the situation that MSC supports IP and ATM transmission simultaneously) initiate with the RNC with the two stacks of ATM/IP between transmission bearer when setting up, when the IP of RNC transfer resource is used up but the ATM transfer resource problem that transmission bearer can't be set up when also having the free time.The IP transmission bearer information that RNC utilizes MSC to provide derives the ATM transmission bearer information of MSC, and uses idle ATM transfer resource to finish the foundation of transmission bearer by IWU and MSC, thereby the transmission bearer of finishing that can be successful is set up.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (6)
1, sets up the method for transmission bearer in a kind of universal mobile telecommunications system, it is characterized in that: utilize the mapping relations between the atm address of the IP address of mobile services switching centre (MSC Mobile Services Switching Center) and MSC, when the MSC that supports the IP transmission initiate with the radio network controller (RNC Radio Network Controller) with the two stacks of ATM/IP between transmission bearer when setting up, the ATM transfer resource also has the free time if the IP transfer resource of RNC is used up; Then the IP transmission bearer information that provided for setting up transmission bearer by MSC of RNC derives ATM transmission bearer identification information by these mapping relations, and then uses idle ATM transfer resource to finish the foundation of transmission bearer by IWU and MSC.
2, set up the method for transmission bearer in the universal mobile telecommunications system as claimed in claim 1, it is characterized in that described IP transmission bearer information is meant: MSC mails to IP transport layer address information element (IE Information Element) and the binding logo IE of RNC in order to set up transmission bearer, is used for unique identification MSC and sets up the transfer resource that is distributed for transmission bearer.
3, set up the method for transmission bearer in the universal mobile telecommunications system as claimed in claim 1, it is characterized in that described ATM transmission bearer information is meant: RNC mails to ATM transport layer address IE and the binding logo IE of IWU in order to finish transmission bearer to set up, be used for the transfer resource that unique identification MSC distributes for transmission bearer sets up.
4, set up the method for transmission bearer in the universal mobile telecommunications system as claimed in claim 1, it is characterized in that described binding logo IE meets existing standard, be used to transmit User Datagram Protoco (UDP) (the UDP User Datagram Protocol) port numbers that MSC distributes for transmission bearer sets up.
5, set up the method for transmission bearer in the universal mobile telecommunications system as claimed in claim 1, it is characterized in that described binding logo IE can also carry the information of the IP address of sign udp port as claimed in claim 4 number pairing MSC by wherein idle byte.
6,, may further comprise the steps when it is characterized in that setting up the user data transmission carrying as setting up the method for transmission bearer in claim 1,2,3, the 4 or 5 described universal mobile telecommunications system:
A, MSC are the udp port number that the IP transmission bearer of setting up user data distributes a free time, and this port numbers and corresponding IP address mail to RNC by IP transport layer address IE and binding logo IE, be used for unique identification MSC and set up the transfer resource that is distributed for transmission bearer;
The wireless access network applying portion of b, RNC judges whether its IP transfer resource is used up, if enter step c, otherwise directly utilize the IP transfer resource to set up transmission bearer;
C, RNC find the atm address of MSC by looking into mapping table, and RNC passes to oneself transmission network chain of command with ATM transport layer address and binding logo, use Access Link Control Application Protocol to initiate the foundation of ATM transmission bearer;
After d, IWU receive that this ATM transmission bearer is set up request, determine MSC according to this ATM transport layer address, use the IP transmission bearer between the foundation of IP ALCAP agreement and this MSC then, send IP ALCAP to MSC and set up request message, described IP ALCAP sets up and includes the binding logo that IWU receives in the request message, and the destination address of this message is the IP address that IWU finds according to the atm address of MSC;
After e, MSC receive that the IP ALCAP of IWU sets up request message,, set up transmission bearer according to the information of carrying in the purpose IP address of message and the binding logo IE.
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| CN 02149228 CN1241424C (en) | 2002-11-06 | 2002-11-06 | Method for building transmission load supporting in general mobile communication system |
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| WO2007115458A1 (en) * | 2006-04-10 | 2007-10-18 | Huawei Technologies Co., Ltd. | A method and system for transporting atm message over ip-based network |
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| WO2008092338A1 (en) * | 2007-01-30 | 2008-08-07 | Zte Corporation | A method for establishing ip bearer of mobile communication system |
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| CN101237396B (en) * | 2007-01-30 | 2013-01-23 | 中兴通讯股份有限公司 | IP load establishing method in mobile communication system |
| CN103107990A (en) * | 2013-01-16 | 2013-05-15 | 大唐移动通信设备有限公司 | Medium conversion system and connection method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100401846C (en) * | 2005-07-20 | 2008-07-09 | 华为技术有限公司 | Method of establishing data transmission bearing |
| WO2007115458A1 (en) * | 2006-04-10 | 2007-10-18 | Huawei Technologies Co., Ltd. | A method and system for transporting atm message over ip-based network |
| CN101507333B (en) * | 2006-08-18 | 2016-06-15 | 艾利森电话股份有限公司 | Relate to the intersystem change of mapping between different types of radio bearer |
| WO2008092338A1 (en) * | 2007-01-30 | 2008-08-07 | Zte Corporation | A method for establishing ip bearer of mobile communication system |
| CN101237396B (en) * | 2007-01-30 | 2013-01-23 | 中兴通讯股份有限公司 | IP load establishing method in mobile communication system |
| WO2009043209A1 (en) * | 2007-09-30 | 2009-04-09 | Zte Corporation | A method for establishing a bearer to an user terminal in an idle mode |
| CN101136835B (en) * | 2007-09-30 | 2011-09-21 | 中兴通讯股份有限公司 | Bearing establishment method under idle mode |
| CN103107990A (en) * | 2013-01-16 | 2013-05-15 | 大唐移动通信设备有限公司 | Medium conversion system and connection method thereof |
| CN103107990B (en) * | 2013-01-16 | 2015-12-02 | 大唐移动通信设备有限公司 | A kind of medium conversion system and attaching method thereof |
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| CN1241424C (en) | 2006-02-08 |
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