CN100388823C - Base station transmission architecture and method of implementing data transmission based on the base station transmission architecture - Google Patents
Base station transmission architecture and method of implementing data transmission based on the base station transmission architecture Download PDFInfo
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- CN100388823C CN100388823C CNB2005100017836A CN200510001783A CN100388823C CN 100388823 C CN100388823 C CN 100388823C CN B2005100017836 A CNB2005100017836 A CN B2005100017836A CN 200510001783 A CN200510001783 A CN 200510001783A CN 100388823 C CN100388823 C CN 100388823C
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Abstract
The present invention provides a base station transmission architecture and a method for implementing data transmission based on the base station transmission architecture. The present invention is characterized in that when a base station up transmits service data, the service data are exchanged from internal transmission resources to external transmission resources by the exchange of an adaptation layer; when a base station controller down transmits the service data, the service data are sent to a radio resource module from the transmission resources by the exchange of a PVC according to a binding relationship of a radio resource module and the transmission sources. The method reduces the cost of the downlink sources and solves the problem of downlink bottleneck; additionally, when the base station controller down transmits the service data, the present invention adopting a method of PVC exchange plus multicast not only reduces the cost of the downlink resources, but also solves the problem of the downlink bottleneck, and the present invention satisfies a high capacity principle of transmission and satisfies an open principle that the transmission fits an IUB interface.
Description
Technical field
The present invention relates to communication field, relate in particular to a kind of base station transmission architecture and reach the method that realizes transfer of data based on base station transmission architecture.
Background technology
Asynchronous transfer mode (Asynchronous Transfer Mode, ATM) be a kind of novel transfer mode of energy high-speed transfer integrated service information, its efficient height, control flexibly are defined as transmitting instrument with switched voice, image, data and multimedia messages by ITU-T (standardization department of international telecommunication union telecommunication).
(ATM Adaptation Layer, AAL): between ATM layer and higher layer applications, purpose is to provide required service for application program to ATM Adaptation Layer.It has defined four types adaptive: AAL1, AAL2, AAL3/4, AAL5.The connection-oriented real-time constant bit rate of AAL1 type adapted transmission wherein; But AAL2 type transmission bit rate change, connection-oriented real time business; The adaptive user data that is used for transmission of variable length of AAL3/4 type; The AAL5 type is adaptive, and to be used to transmit adaptation overhead lower and error detection is professional preferably.
In R99 type base station, it is ATM system that the transmission of base station is adopted.Set up transmission by the ATM channel mode between base station and the base station controller.As shown in Figure 1, there is multiple module, for example coffret module 101 and Radio Resource module 102 at inside of base station.Described coffret module 101 is used for being responsible for the reception and the transmission of IUB interface (physical interface between base station controller RNC and the base station node B) data, and data are sent to inner each module); Described Radio Resource module 102 is used for being responsible for radio function.The terminal point of the ATM passage between base station and the base station controller is the Radio Resource module, but not the coffret module.
With the coffret module is the boundary, and transmission is divided into external transmission and internal transmission.External transmission and internal transmission are finished by exchange.As shown in Figure 2, a kind of exchanged form is PVC level exchange (exchange of ATM layer) 202, and another kind of exchange is adaptation layer (ATM Adaptation Layer, AAL) exchange 201.
Described PVC level exchange 202 is ATM exchanged forms in general sense, is the exchange on the ATM level.
Described adaptation layer exchange 201 mainly refers to the AAL2 exchanged form.The AAL2 establishment of connection is equivalent to the microchannel establishment of connection.Promptly an AAL2 PVC level exchange is an AAL2 passage (AAL2PATH), can be divided into 248 microchannels (8-255) in an AAL2PATH, and each user distributes one or more microchannels, and adaptive exchange is exactly the microchannel exchange.
With respect to the exchange of PVC level, the expense of adaptation layer exchange is much bigger.
Prior art one internal transmission and external transmission are only carried out the PVC exchange.Be that the microchannel sign (IN AAL2PATH+CID) of internal transmission and the microchannel sign (IUB AAL2PATH+CID) of external transmission are consistent.
Prior art one is promptly all used the PVC exchange because internal transmission is consistent with external transmission, does not have the adaptation layer exchange, thus IUBPATH can only with specific Radio Resource module correspondence.As shown below:
Radio Resource modules A------IUBPATH A
Radio Resource module B------IUBPATH B
Radio Resource module C------IUBPATH C
Because user's radio resource is distributed on the Radio Resource module B, RNC just must be based upon user's transmission link on the IUBPATHB, so must need to know the corresponding relation of IUBPATH and inside of base station Radio Resource module as the RNC of AAL2 signaling originating end, just can set up the AAL2 microchannel, so that the AAL2 resource is effectively managed, this point is particularly outstanding under the corresponding a plurality of Radio Resource module situations of a transport module.Yet, RNC has only by the binding relationship (BINDINGID) of transfer resource and Radio Resource module can learn that just this user is based upon on the Radio Resource module B, be that RNC just can parse Radio Resource by BINGDINGID, obtain the transfer resource that distribute.In fact this method is exactly the method that adopts privately owned interface to transmit, and the IUB interface has just lost opening like this.
Prior art two related to the present invention meets the open principle of IUB interface, its technical scheme is as shown in Figure 3: at first base station controller is that user's business datum is distributed the external transmission resource, the external transmission resource 211 that exchanges the business datum correspondence by AAL2 exchanges to internal transmission resource 213 then, like this, the user has just set up AAL2 transmission microchannel 212.
Adopt this method of prior art two, promptly the adaptation layer exchange is used in the provisional capital up and down, that is to say that up-downgoing all identifies outside microchannel (IUB AAL2PATH+CID) and changes with inner microchannel sign (IN AAL2PATH+CID), realized that internal information is hidden completely, met the open principle of IUB.But, because the adaptation layer exchange is all used in up-downgoing, when (High Speed Downlink Packet Access is in the time of HSDPA) in order to support high-speed downlink packet access, descending delivery flow rate can increase greatly, therefore causes the problem of downlink transfer bottleneck easily; And internal resource management need be carried out in the provisional capital up and down, and technical sophistication degree height will inevitably cause increasing of destabilizing factor in the message transmitting procedure like this.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the purpose of this invention is to provide the method that realizes transfer of data based on base station transmission architecture, this method can satisfy the big capacity principle of transmission, has solved the problem of downlink transfer bottleneck.
The objective of the invention is to be achieved through the following technical solutions:
Provided by the inventionly a kind ofly carry out the method for transfer of data, comprising based on base station transmission architecture:
When A, base station uplink business datum, binding relationship according to Radio Resource module and transfer resource, business datum is transferred to corresponding internal transmission resource from the Radio Resource module, and by the adaptation layer exchange, with described business datum internally transfer resource exchange to the external transmission resource;
When B, base station controller downlink transfer business datum,,, described business datum is sent to the Radio Resource module from transfer resource by asynchronous transfer mode layer exchanged form PVC exchange according to the binding relationship of Radio Resource module and transfer resource.
Wherein, also comprise before described steps A: the binding relationship of Radio Resource module and transfer resource is set up in the base station.
Wherein, described steps A further comprises: A1, according to the binding relationship of Radio Resource module and transfer resource, obtain the transfer resource of Radio Resource module correspondence;
A2, base station are transferred to corresponding internal transmission resource with business datum from the Radio Resource module;
A3, by adaptation layer exchange with business datum internally transfer resource exchange to the external transmission resource.
Wherein, described step B specifically comprises:
B1, base station controller are the business datum allocation of transmission resources;
B2, according to the binding relationship of Radio Resource module and transfer resource, obtain the Radio Resource module of transfer resource correspondence;
B3, described transfer resource is exchanged to corresponding Radio Resource module by PVC exchange.
Wherein, when base station controller carried out the downlink transfer business datum, described step B further comprised:
B5, base station controller send to each Radio Resource module with business datum from transfer resource by PVC exchange and multicast;
B6, wireless money module judge whether described business datum belongs to the Radio Resource of this Radio Resource module, if then receive described business datum; Otherwise refuse described business datum.
Wherein, before described step B5, also comprise:
Base station controller is that business datum is distributed corresponding transfer resource.
A kind of base station transmission architecture provided by the invention comprises base station, base station controller, transfer resource module, uplink framework and downlink transfer framework;
Described transfer resource module is divided into internal transmission resource and external transmission resource with transfer resource;
Described uplink framework, be used for according to the Radio Resource module of base station and the binding relationship of transfer resource, business datum is transferred to corresponding internal transmission resource from the Radio Resource module, and by the adaptation layer exchange, with described business datum internally transfer resource exchange to the external transmission resource;
Described downlink transfer framework is used for exchanging the Radio Resource module that described business datum is sent to the base station from transfer resource by PVC according to the Radio Resource module of base station and the binding relationship of transfer resource.
Wherein, described downlink transfer framework also is used for base station controller and by PVC exchange and multicast business datum is sent to each Radio Resource module from transfer resource; The Radio Resource module is judged and is then received described business datum when described business datum belongs to the Radio Resource of this Radio Resource module; Otherwise refuse described business datum.
As seen from the above technical solution provided by the invention, method of the present invention adopts the adaptation layer exchange to transmit by the uplink passage, the downlink transfer passage adopts the mode of PVC exchange, thereby has reduced the expense of downlink resource, has solved the problem of downlink transfer bottleneck.
Downlink transfer passage of the present invention adopts the mode of PVC exchange+multicast, has reduced the expense of downlink resource, has solved the problem of downlink transfer bottleneck, thereby not only can satisfy the big capacity principle of transmission, and can satisfy the open principle that transmission meets the IUB interface.
In addition, because having only up employing adaptation layer exchange transmits, therefore, has only the up internal resource that has, and descendingly there is not an internal resource, so the distribution of inside of base station resource is just only considered ascending resource, technical complexity is relatively low, and the destabilizing factor in the message transmitting procedure also can reduce relatively.
Moreover up-downgoing is adopted diverse ways at different demands, has improved the autgmentability of system.
Description of drawings
Fig. 1 is the structural representation of base station;
Fig. 2 is the location diagram of PVC exchange with the adaptation layer exchange;
Fig. 3 is the basic principle figure that prior art two adopts the adaptation layer exchange;
Fig. 4 is the flow chart of uplink business datum among the present invention;
Fig. 5 is the flow chart of downlink transfer business datum in the first embodiment of the invention;
Fig. 6 is the flow chart of downlink transfer business datum in the first embodiment of the invention;
Fig. 7 is a base station transmission architecture schematic diagram of the present invention.
Embodiment
First embodiment of the method for the invention may further comprise the steps:
As shown in Table 1, transfer resource and specific Radio Resource module correspondence:
| The Radio Resource module | The internal transmission resource |
| The Radio Resource modules A | INPATH 1 |
| Radio Resource module B | INPATH 2 |
| Radio Resource module C | INPATH 3 |
Table one
Step 2, during base station uplink business datum, by adaptation layer exchange with business datum internally transfer resource exchange to the external transmission resource.Specific implementation is as shown in Figure 4:
Step S301, according to the binding relationship of above-mentioned Radio Resource module and transfer resource, obtain the transfer resource of Radio Resource module correspondence; For example, the transfer resource that can obtain Radio Resource modules A correspondence according to above-mentioned binding relationship is INPATH 1, and the transfer resource of Radio Resource module B correspondence is INPATH 2 etc.
Know the binding relationship of Radio Resource module and transfer resource when the base station after, just can carry out step S302, the base station is transferred to corresponding internal transmission resource with professional (speech business or stream are professional) data from the Radio Resource module; Be transferred on the corresponding internal transmission resource INPATH 2+CID1 from Radio Resource module B as the business datum of base station the user.
Execution in step S303 then, by the adaptation layer exchange with business datum internally transfer resource exchange to the external transmission resource.As, by the AAL2 exchange described business datum is exchanged on the external transmission resource IUBPATH 2+CID2 on the transfer resource INPATH2+CID1 internally.
Through above-mentioned transmission course, the base station is that business datum has been determined the uplink passage, adopt the exchanged form that is different from uplink when the downlink transfer business datum is carried out in the base station among the present invention, and the mode that adopts the exchange of PVC level is determined the downlink transfer passage of business datum, by the described down going channel of determining business datum is finally sent to the Radio Resource module of base station then.For the downlink transfer passage, do not distinguish inside and outside transfer resource, by the PVC exchange directly and the Radio Resource module mutual, the IUBPATH data are issued the Radio Resource module of correspondence the most at last.In this process,,, need the base station at first to set up the binding relationship of Radio Resource module and transfer resource in order to address this problem because transfer resource and Radio Resource are not one-to-one relationships.As shown in Table 2, the Radio Resource modules A is corresponding with transfer resource IUBPATH1; Radio Resource module B is corresponding with transfer resource IUBPATH2; Radio Resource module C is corresponding with transfer resource IUBPATH3.
| The Radio Resource module | Transfer resource |
| The Radio Resource modules A | IUBPATH1 |
| Radio Resource module B | IUBPATH2 |
| Radio Resource module C | IUBPATH3 |
Table two
Specific implementation is as shown in Figure 5:
Step S401, base station controller are the business datum allocation of transmission resources; Base station controller distributes corresponding transfer resource for described business datum according to the busy not busy degree of transfer resource at random with the transfer resource of free time.For example, base station controller is user's business datum allocation of transmission resources IUBPATH2+CID1.
Step S402 according to the binding relationship of Radio Resource module and transfer resource, obtains the Radio Resource module of transfer resource correspondence; Still as shown in Table 2, the base station is by the binding relationship of Radio Resource module B and transfer resource IUBPATH2, and the Radio Resource module of obtaining transfer resource IUBPATH2+CID1 correspondence is Radio Resource module B.
Execution in step S403 exchanges to described transfer resource IUBPATH2+CID1 on the corresponding Radio Resource module B by the PVC exchange subsequently.
First embodiment of the present invention can solve the problem of downlink transfer bottleneck, thereby satisfies the big capacity principle of transmission.But can not guarantee the flexible correspondence of transfer resource and Radio Resource, thereby can not realize hiding of internal information.
In second embodiment of the method for the invention, the process of base station uplink business datum, promptly the process of step 1 and step 2 and first embodiment are identical, no longer describe in detail.Here only be described in detail at the process of downlink transfer business datum.
In a second embodiment, when base station controller carries out the downlink transfer business datum, the technology by PVC exchange and multicast with business data transmission to the Radio Resource module.Because for the downlink transfer passage, do not distinguish inside and outside transfer resource, by PVC exchange directly and the Radio Resource module mutual, because, transfer resource and Radio Resource are not one-to-one relationships, in order to solve the corresponding relation of transfer resource and Radio Resource, need to use the multicast mode, downlink service data sends to each Radio Resource module the most at last, specific implementation as shown in Figure 6:
Step S501, base station controller are that business datum is distributed corresponding transfer resource; Base station controller distributes corresponding transfer resource for described business datum according to the busy not busy degree of transfer resource at random with the transfer resource of free time.As base station controller is user's business datum allocation of transmission resources IUBPATH2+CID1.
Step S502, base station controller sends to each Radio Resource module with business datum from transfer resource by PVC exchange and multicast; As shown in Figure 7, user's downlink transfer resource all has with each Radio Resource module and is connected (multicast), and each part downlink service data is all sent to each Radio Resource module simultaneously.RNC does not need to know concrete and which the piece Radio Resource module correspondence of which bar IUBPATH like this.
Because described business datum arrives each Radio Resource module simultaneously,, judge promptly whether described business datum belongs to the ability of this Radio Resource module so each resource module need possess judgement.Execution in step S503 then, promptly the Radio Resource module judges whether described business datum belongs to the Radio Resource of this Radio Resource module, if then execution in step S504 receives described business datum; Otherwise execution in step S505 refuses described business datum.
From the description of above-mentioned second embodiment as can be seen, because the present invention adopts the downlink transfer passage to use the mode of multicast, be connected so user's downlink transfer resource all has with each Radio Resource module, so each part downlink data is all by each Radio Resource module that sends to of while.RNC does not just need to know concrete and which the Radio Resource module correspondence of which bar transfer resource IUBPATH yet like this, thereby can guarantee the flexible correspondence of transfer resource and Radio Resource module, and then can realize hiding of internal information, guarantee the opening of IUB.
Base station transmission architecture of the present invention comprises base station 601, base station controller 603, transfer resource module 602, uplink framework 604 and downlink transfer framework 605 as shown in Figure 7;
Described transfer resource module 602 is divided into internal transmission resource and external transmission resource with transfer resource;
Described uplink framework 604, transfer resource exchanges to the external transmission resource to be used for exchanging internally by adaptation layer business datum;
Described downlink transfer framework 605 is used for base station controller and by PVC exchange and multicast mode business datum is sent to each Radio Resource module from transfer resource; The Radio Resource module of base station is judged and is then received described business datum when described business datum belongs to the Radio Resource of this Radio Resource module; Otherwise refuse described business datum.
In sum, the invention provides a kind of base station transmission architecture of balance and the method for carrying out transfer of data based on this kind base station transmission architecture, not only satisfied the opening of IUB interface, and satisfied the requirement of following capacity, more realize and autgmentability aspect reaching an equilibrium preferably.
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 claim.
Claims (8)
1. one kind is carried out the method for transfer of data based on base station transmission architecture, it is characterized in that, comprising:
When A, base station uplink business datum, binding relationship according to Radio Resource module and transfer resource, business datum is transferred to corresponding internal transmission resource from the Radio Resource module, and by the adaptation layer exchange, with described business datum internally transfer resource exchange to the external transmission resource;
When B, base station controller downlink transfer business datum,,, described business datum is sent to the Radio Resource module from transfer resource by asynchronous transfer mode layer exchanged form PVC exchange according to the binding relationship of Radio Resource module and transfer resource.
2. method according to claim 1 is characterized in that, also comprises before described steps A: the binding relationship of Radio Resource module and transfer resource is set up in the base station.
3. method according to claim 1 is characterized in that, described steps A further comprises:
A1, according to the binding relationship of Radio Resource module and transfer resource, obtain the transfer resource of Radio Resource module correspondence;
A2, base station are transferred to corresponding internal transmission resource with business datum from the Radio Resource module;
A3, by adaptation layer exchange with business datum internally transfer resource exchange to the external transmission resource.
4. method according to claim 1 is characterized in that, described step B specifically comprises:
B1, base station controller are the business datum allocation of transmission resources;
B2, according to the binding relationship of Radio Resource module and transfer resource, obtain the Radio Resource module of transfer resource correspondence;
B3, described transfer resource is exchanged to corresponding Radio Resource module by PVC exchange.
5. according to claim 1,2 or 3 described methods, it is characterized in that when base station controller carried out the downlink transfer business datum, described step B further comprised:
B5, base station controller send to each Radio Resource module with business datum from transfer resource by PVC exchange and multicast;
B6, wireless money module judge whether described business datum belongs to the Radio Resource of this Radio Resource module, if then receive described business datum; Otherwise refuse described business datum.
6. method according to claim 5 is characterized in that, also comprises before described step B5:
Base station controller is that business datum is distributed corresponding transfer resource.
7. a base station transmission architecture comprises base station, base station controller, transfer resource module, and described transfer resource module is divided into internal transmission resource and external transmission resource with transfer resource, it is characterized in that, also comprises uplink framework and downlink transfer framework;
Described uplink framework, be used for according to the Radio Resource module of base station and the binding relationship of transfer resource, business datum is transferred to corresponding internal transmission resource from the Radio Resource module, and by the adaptation layer exchange, with described business datum internally transfer resource exchange to the external transmission resource;
Described downlink transfer framework is used for according to the Radio Resource module of base station and the binding relationship of transfer resource, by the PVC exchange, described business datum is sent to the Radio Resource module of base station from transfer resource.
8. base station transmission architecture according to claim 7 is characterized in that, described downlink transfer framework is used for base station controller and by PVC exchange and multicast business datum is sent to each Radio Resource module from transfer resource; The Radio Resource module is judged and is then received described business datum when described business datum belongs to the Radio Resource of this Radio Resource module; Otherwise refuse described business datum.
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| CN101193344B (en) * | 2007-01-10 | 2011-10-26 | 中兴通讯股份有限公司 | Transmission method for multicast broadcast program |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0848567A1 (en) * | 1996-12-11 | 1998-06-17 | Hewlett-Packard Company | Cellular mobile radio network discovery method and apparatus therefor |
| CN1289488A (en) * | 1998-12-01 | 2001-03-28 | 三星电子株式会社 | Mobile communication system having ATM-based connecting scheme |
| KR20020069673A (en) * | 2001-02-27 | 2002-09-05 | 삼성전자 주식회사 | Apparatus and method for controlling aal2 pvc connection in communication system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0848567A1 (en) * | 1996-12-11 | 1998-06-17 | Hewlett-Packard Company | Cellular mobile radio network discovery method and apparatus therefor |
| CN1289488A (en) * | 1998-12-01 | 2001-03-28 | 三星电子株式会社 | Mobile communication system having ATM-based connecting scheme |
| KR20020069673A (en) * | 2001-02-27 | 2002-09-05 | 삼성전자 주식회사 | Apparatus and method for controlling aal2 pvc connection in communication system |
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