CN102769934B - Method and system based on PPP for protecting transfer layer link - Google Patents
Method and system based on PPP for protecting transfer layer link Download PDFInfo
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- CN102769934B CN102769934B CN201210106008.7A CN201210106008A CN102769934B CN 102769934 B CN102769934 B CN 102769934B CN 201210106008 A CN201210106008 A CN 201210106008A CN 102769934 B CN102769934 B CN 102769934B
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Abstract
The invention relates to a method and a system based PPP (Point to Point Protocol) for protecting a transfer layer link. The method comprises the following steps: after a physical connection between a base station Node B and a radio network controller (RNC) is established, the base station Node B and the RNC negotiate and then respectively obtain role identifications for characterizing roles of the Node B and the RNC according to PPP; the base station Node B obtains the client role identification and the RNC obtains server role identification; and the base station Node B and RNC interacts according to the respective role identifications. According to the invention, the RNC and the base station Node B are assigned with roles to obtain the base station Node B of the client role identification to obtain a valid IP (Internet Protocol); an operation and maintenance channel is established by the IP and the RNC which obtains the server role identification; and the docking complexity of the RNC and the base station Node B is reduced by directly assigning other parameters from the RNC.
Description
Technical field
The present invention relates to 3G UMTS (Universal Mobile Telecommunications System, universal mobile telecommunications system) wireless communication field, particularly, provide a kind of method and system ensureing transport layer link based on ppp protocol, by to PPP peer-peer protocol (Point to Point Protocol, be called for short ppp protocol) RNC (the Radio Network Controller at link two ends, radio network controller) and NodeB (base station) carry out role's configuration, improve ppp negotiation to distribute the IP address of wide area network and to manage, for transport network layer application.
Background technology
Ppp protocol is a kind of link layer protocol of bearer network layer data bag on point-to-point link, its advantage is simply, possesses user rs authentication ability, can solves IP distribution etc., it is one of most widely used agreement on current wide area network, also be widely used a kind of agreement in current 3G UMTS system, for transmitting wireless signaling between RNC and NodeB and data.
Ppp protocol provides full-duplex operation, and transmits packet in order.Its object is mainly used for setting up point to point connect by dialing or private-line mode and sends data, a kind of common solution becoming various main frame, simply connect between bridge and router.Work under its interface that can encapsulate at any support PPP, as serial ports, ISDN (Integrated Services Digital Network, integrated services digital network) BRI/PRI interface etc., in addition can also comprise PPPoX (such as PPPoE, PPPoA, PPPoFR etc.) this kind of virtual interface.
The effect of ppp protocol mainly contains: for the foundation of control data link; For distributing the IP address of wide area network and manage; Allow to adopt multiple network layer Routing Protocol simultaneously; Can configure and tests data-link; And effectively can carry out error detection.
At present, in the umts system, RNC and NodeB is as two sides in ppp protocol, in the process of carrying out ppp link negotiation, be in the status of equity, the both sides that may cause this equity thus can not be the IP address of the other side's allocative efficiency, so that RNC and NodeB cannot set up transmission channel, and terminal cannot incoming call.
Summary of the invention
The object of the present invention is to provide a kind of method and system ensureing transport layer link based on ppp protocol, the method and system ensureing transport layer link based on ppp protocol that the present invention proposes, be allow PPP distribute respectively and managing I P according to the different role of base station NodeB and radio network controller (RNC), ensure that transport layer can utilize this IP effective transceiving data on the basis of point to point connect.
In order to reach object of the present invention, the present invention realizes by the following technical solutions:
Ensure a method for transport layer link based on ppp protocol, comprising:
After setting up the physical connection between base station NodeB and radio network controller (RNC), base station NodeB and radio network controller (RNC) obtain based on peer-peer protocol ppp negotiation the role identification characterizing its role respectively, wherein, described base station NodeB obtains client role mark, and described radio network controller (RNC) obtains role server mark;
Base station NodeB and radio network controller (RNC) carry out according to respective role identification alternately.
Preferably, described base station NodeB and radio network controller (RNC) adopt the one in E1/T1, STM1 to carry out networking.
Preferably, base station NodeB and radio network controller (RNC) carry out mutual step according to respective role identification and comprise:
Base station NodeB and radio network controller (RNC) carry out LCP LCP negotiation, decide through consultation the controling parameters of transmitting link layer;
The protocol stack of base station NodeB and radio network controller (RNC) obtains respective role identification respectively, carries out Network Control Protocol NCP negotiation;
Base station NodeB transmission carries the configuring request of former IP to radio network controller (RNC), is its distributing IP resource with request wireless network controller RNC;
The request of radio network controller (RNC) response base station NodeB, and be corresponding base station NodeB allocative efficiency IP, this effective IP is sent to base station NodeB, more effective IP information of radio network controller (RNC) is sent to this corresponding base station NodeB;
Radio network controller (RNC) is set up PPP with effective IP of base station NodeB foundation the other side and is linked, and after startup upper-layer service is consulted, sets up OM channel and service channel.
Preferably, radio network controller (RNC) response base station NodeB request and be corresponding base station NodeB allocative efficiency IP, this effective IP is sent to base station NodeB, send in the step of this corresponding base station NodeB by effective IP information of radio network controller (RNC) again, base station NodeB receives this most newly assigned effective IP and it can be used as unique effectively IP.
Preferably, when carrying out ensureing that the system of transport layer link is arranged net based on ppp protocol, without the need to considering that the IP layer of base station NodeB configures above.
Ensure a system for transport layer link based on ppp protocol, comprise radio network controller (RNC) and base station NodeB, it also comprises PPP control module, wherein,
PPP control module, for set up physical connection between base station NodeB and radio network controller (RNC) after, peer-peer protocol ppp negotiation based on base station NodeB and radio network controller (RNC) is respectively base station NodeB and radio network controller (RNC) and distributes role identification in order to characterize its role, wherein, described base station NodeB distributes client role mark, described radio network controller (RNC) distribution server role identification, makes base station NodeB and radio network controller (RNC) carry out alternately according to respective role identification.
Preferably, described base station NodeB and radio network controller (RNC) adopt the one in E1/T1, STM1 to carry out networking.
Preferably, after PPP control module is respectively base station NodeB and radio network controller (RNC) is assigned with role identification, base station NodeB and radio network controller (RNC) carry out mutual step according to respective role identification and comprise:
Base station NodeB and radio network controller (RNC) carry out LCP LCP negotiation, decide through consultation the controling parameters of transmitting link layer;
The protocol stack of base station NodeB and radio network controller (RNC) obtains respective role identification respectively, carries out Network Control Protocol NCP negotiation;
Base station NodeB transmission carries the configuring request of former IP to radio network controller (RNC), is its distributing IP resource with request wireless network controller RNC;
The request of radio network controller (RNC) response base station NodeB, and be corresponding base station NodeB allocative efficiency IP, this effective IP is sent to base station NodeB, more effective IP information of radio network controller (RNC) is sent to this corresponding base station NodeB;
Radio network controller (RNC) is set up PPP with effective IP of base station NodeB foundation the other side and is linked, and after startup upper-layer service is consulted, sets up OM channel and service channel.
Preferably, radio network controller (RNC) response base station NodeB request and be corresponding base station NodeB allocative efficiency IP, this effective IP is sent to base station NodeB, send in the step of this corresponding base station NodeB by effective IP information of radio network controller (RNC) again, base station NodeB receives this most newly assigned effective IP and it can be used as unique effectively IP.
Preferably, when carrying out ensureing that the system of transport layer link is arranged net based on ppp protocol, without the need to considering that the IP layer of base station NodeB configures above.
Can be found out by the technical scheme of the invention described above, the present invention has following beneficial effect:
(1) radio network controller (RNC) is as core controller, unified is base station NodeB managed network element distributing IP, transmission network is got through by the IP auto-negotiation mode of ppp protocol, avoid, because two ends negotiate invalid IP and make network cannot get through and the problem of upper station reprovision, greatly reducing maintenance cost.
(2) base station NodeB (managed network element) is larger, and business complexity is high, in system is arranged net, without the need to considering that the IP layer of base station NodeB configures above, can reduce beginning complexity.
(3) by carrying out role assignments to radio network controller (RNC) and base station NodeB, the base station NodeB obtaining client role mark can obtain effective IP, OM channel is set up by this IP and the radio network controller (RNC) that acquisition role server identifies, directly distribute other parameters from radio network controller (RNC), reduce the complexity that radio network controller (RNC) docks with base station NodeB.
Accompanying drawing explanation
Figure 1 shows that base station NodeB and radio network controller (RNC) networking schematic diagram;
Figure 2 shows that the method flow schematic diagram ensureing transport layer link based on ppp protocol that the embodiment of the present invention provides;
Figure 3 shows that the system configuration schematic diagram ensureing transport layer link based on ppp protocol that the embodiment of the present invention provides.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is described in further detail, can better understand the present invention to make those skilled in the art and can be implemented, but illustrated embodiment is not as a limitation of the invention.
According to an embodiment of the present invention, the described method ensureing transport layer link based on ppp protocol, comprises the following steps:
(1) physical connection between base station NodeB and radio network controller (RNC) is set up;
(2) base station NodeB and radio network controller (RNC) obtain based on peer-peer protocol ppp negotiation the role identification characterizing its role respectively, wherein, described base station NodeB obtains client role mark, and described radio network controller (RNC) obtains role server mark;
(3) base station NodeB and radio network controller (RNC) carry out according to respective role identification alternately.
Under preferred implementation, described base station NodeB and radio network controller (RNC) adopt the one in E1/T1, STM1 to carry out networking.
Such as, as shown in Figure 1, by E1 line physical connection between base station NodeB and radio network controller (RNC), the process of its configuring negotiation is as follows:
(1) E1/T1, STM1 can be adopted between base station NodeB with radio network controller (RNC) to be connected.
(2) two ends are all configured to PPP pattern (can be configured to PlainPPP or Multilink PPP), and physical connection is consistent;
(3) role at base station NodeB and radio network controller (RNC) two ends is set.
In embodiments of the present invention, by carrying out role assignments to base station NodeB and radio network controller (RNC), the base station NodeB obtaining client role mark can obtain effective IP, OM channel is set up by this IP and the radio network controller (RNC) that acquisition role server identifies, directly distribute other parameters from radio network controller (RNC), reduce the complexity that radio network controller (RNC) docks with base station NodeB.
And, radio network controller (RNC) is as core controller, unified is base station NodeB managed network element distributing IP, transmission network is got through by the IP auto-negotiation mode of ppp protocol, avoid, because two ends negotiate invalid IP and make network cannot get through and the problem of upper station reprovision, greatly reducing maintenance cost.
In order to set forth spirit of the present invention more clearly, will be described in detail the method ensureing transport layer link based on ppp protocol provided by the invention by a specific embodiment below.As shown in Figure 2, described method comprises:
S101, set up physical connection between base station NodeB and radio network controller (RNC);
S102, base station NodeB and radio network controller (RNC) carry out LCP LCP (Link Control Protocol, LCP) to be consulted, and decides through consultation the controling parameters of transmitting link layer;
The protocol stack of S103, base station NodeB and radio network controller (RNC) obtains respective role identification respectively, carries out Network Control Protocol NCP (Network Control Protocol, Network Control Protocol) and consults;
The transmission of S104, base station NodeB carries the configuring request of former IP to radio network controller (RNC), is its distributing IP resource with request wireless network controller RNC;
The request of S105, radio network controller (RNC) response base station NodeB, and be corresponding base station NodeB allocative efficiency IP, this effective IP is sent to base station NodeB, more effective IP information of radio network controller (RNC) is sent to this corresponding base station NodeB;
S106, radio network controller (RNC) are set up PPP with effective IP of base station NodeB foundation the other side and are linked, and after startup upper-layer service is consulted, set up OM channel and service channel.
Preferably, in described step S105, radio network controller (RNC) response base station NodeB request and be corresponding base station NodeB allocative efficiency IP, this effective IP is sent to base station NodeB, send in the step of this corresponding base station NodeB by effective IP information of radio network controller (RNC) again, base station NodeB receives this most newly assigned effective IP and it can be used as unique effectively IP.
Preferably, before execution above-mentioned steps S101-S106, when carrying out ensureing that the system of transport layer link is arranged net based on ppp protocol, without the need to considering that the IP layer of base station NodeB configures above.
Correspondingly, the embodiment of the present invention additionally provides a kind of system ensureing transport layer link based on ppp protocol, and comprise radio network controller (RNC) 10 and base station NodeB 20 as shown in Figure 3, it also comprises PPP control module 101, wherein,
PPP control module 101, for set up physical connection between base station NodeB 20 and radio network controller (RNC) 10 after, the role identification that base station NodeB 20 and radio network controller (RNC) 10 distribute to characterize its role is respectively based on base station NodeB 20 and the peer-peer protocol ppp negotiation of radio network controller (RNC) 10, wherein, described base station NodeB 20 distributes client role mark, described radio network controller (RNC) 10 distribution server role identification, makes base station NodeB 20 and radio network controller (RNC) 10 carry out alternately according to respective role identification.
During concrete enforcement, described PPP control module 101 can be arranged among described radio network controller (RNC) 10, also can arrange with described radio network controller (RNC) 10 is independent.
In preferred implementation process, described base station NodeB 20 adopts the one in E1/T1, STM1 to carry out networking with radio network controller (RNC) 10.
Preferably, after PPP control module 101 is respectively base station NodeB 20 and radio network controller (RNC) 10 is assigned with role identification, base station NodeB 20 and radio network controller (RNC) 10 carry out mutual step according to respective role identification and comprise:
(1) base station NodeB 20 and radio network controller (RNC) 10 carry out LCP LCP negotiation, decide through consultation the controling parameters of transmitting link layer;
(2) base station NodeB 20 obtains respective role identification respectively with the protocol stack of radio network controller (RNC) 10, carries out Network Control Protocol NCP negotiation;
(3) base station NodeB 20 transmission carries the configuring request of former IP to radio network controller (RNC) 10, is its distributing IP resource with request wireless network controller RNC10;
(4) radio network controller (RNC) 10 responds the request of base station NodeB 20, and be corresponding base station NodeB 20 allocative efficiency IP, this effective IP is sent to base station NodeB, more effective IP information of radio network controller (RNC) 10 is sent to this corresponding base station NodeB 20;
Preferably, in this step, radio network controller (RNC) 10 respond base station NodeB 20 request and for corresponding base station NodeB 20 allocative efficiency IP, this effective IP is sent to base station NodeB, send in the step of this corresponding base station NodeB 20 by effective IP information of radio network controller (RNC) 10 again, base station NodeB 20 receives this most newly assigned effective IP and it can be used as unique effectively IP.
(5) radio network controller (RNC) 10 and base station NodeB 20 are set up PPP according to effective IP of the other side and are linked, and after startup upper-layer service is consulted, set up OM channel and service channel.
Preferably, base station NodeB 20 (managed network element) is larger, and business complexity is high, when carrying out ensureing that the system of transport layer link is arranged net based on ppp protocol, without the need to considering that the IP layer of base station NodeB 20 configures above, can reduce beginning complexity.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (8)
1. ensure a method for transport layer link based on ppp protocol, it is characterized in that, comprising:
After setting up the physical connection between base station NodeB and radio network controller (RNC), base station NodeB and radio network controller (RNC) obtain based on peer-peer protocol ppp negotiation the role identification characterizing its role respectively, wherein, described base station NodeB obtains client role mark, and described radio network controller (RNC) obtains role server mark;
Base station NodeB and radio network controller (RNC) carry out alternately according to respective role identification;
Base station NodeB and radio network controller (RNC) carry out mutual step according to respective role identification and comprise:
Base station NodeB and radio network controller (RNC) carry out LCP LCP negotiation, decide through consultation the controling parameters of transmitting link layer;
The protocol stack of base station NodeB and radio network controller (RNC) obtains respective role identification respectively, carries out Network Control Protocol NCP negotiation;
Base station NodeB transmission carries the configuring request of former IP to radio network controller (RNC), is its distributing IP resource with request wireless network controller RNC;
The request of radio network controller (RNC) response base station NodeB, and be corresponding base station NodeB allocative efficiency IP, this effective IP is sent to base station NodeB, more effective IP information of radio network controller (RNC) is sent to this corresponding base station NodeB;
Radio network controller (RNC) is set up PPP with effective IP of base station NodeB foundation the other side and is linked, and after startup upper-layer service is consulted, sets up OM channel and service channel.
2. ensure the method for transport layer link as claimed in claim 1 based on ppp protocol, it is characterized in that, described base station NodeB and radio network controller (RNC) adopt the one in E1/T1, STM1 to carry out networking.
3. the method for transport layer link is ensured as claimed in claim 1 based on ppp protocol, it is characterized in that, radio network controller (RNC) response base station NodeB request and be corresponding base station NodeB allocative efficiency IP, this effective IP is sent to base station NodeB, send in the step of this corresponding base station NodeB by effective IP information of radio network controller (RNC) again, base station NodeB receives this most newly assigned effective IP and it can be used as unique effectively IP.
4. ensure the method for transport layer link as claimed in claim 1 based on ppp protocol, it is characterized in that, when carrying out ensureing that the system of transport layer link is arranged net based on ppp protocol, without the need to considering that the IP layer of base station NodeB configures above.
5. ensure a system for transport layer link based on ppp protocol, comprise radio network controller (RNC) and base station NodeB, it is characterized in that, also comprise PPP control module, wherein,
PPP control module, for set up physical connection between base station NodeB and radio network controller (RNC) after, peer-peer protocol ppp negotiation based on base station NodeB and radio network controller (RNC) is respectively base station NodeB and radio network controller (RNC) and distributes role identification in order to characterize its role, wherein, described base station NodeB distributes client role mark, described radio network controller (RNC) distribution server role identification, makes base station NodeB and radio network controller (RNC) carry out alternately according to respective role identification;
After PPP control module is respectively base station NodeB and radio network controller (RNC) is assigned with role identification, base station NodeB and radio network controller (RNC) carry out mutual step according to respective role identification and comprise:
Base station NodeB and radio network controller (RNC) carry out LCP LCP negotiation, decide through consultation the controling parameters of transmitting link layer;
The protocol stack of base station NodeB and radio network controller (RNC) obtains respective role identification respectively, carries out Network Control Protocol NCP negotiation;
Base station NodeB transmission carries the configuring request of former IP to radio network controller (RNC), is its distributing IP resource with request wireless network controller RNC;
The request of radio network controller (RNC) response base station NodeB, and be corresponding base station NodeB allocative efficiency IP, this effective IP is sent to base station NodeB, more effective IP information of radio network controller (RNC) is sent to this corresponding base station NodeB;
Radio network controller (RNC) is set up PPP with effective IP of base station NodeB foundation the other side and is linked, and after startup upper-layer service is consulted, sets up OM channel and service channel.
6. ensure the system of transport layer link as claimed in claim 5 based on ppp protocol, it is characterized in that, described base station NodeB and radio network controller (RNC) adopt the one in E1/T1, STM1 to carry out networking.
7. the system of transport layer link is ensured as claimed in claim 5 based on ppp protocol, it is characterized in that, radio network controller (RNC) response base station NodeB request and be corresponding base station NodeB allocative efficiency IP, this effective IP is sent to base station NodeB, send in the step of this corresponding base station NodeB by effective IP information of radio network controller (RNC) again, base station NodeB receives this most newly assigned effective IP and it can be used as unique effectively IP.
8. ensure the system of transport layer link as claimed in claim 5 based on ppp protocol, it is characterized in that, when carrying out ensureing that the system of transport layer link is arranged net based on ppp protocol, without the need to considering that the IP layer of base station NodeB configures above.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1722872A (en) * | 2004-07-15 | 2006-01-18 | 大唐移动通信设备有限公司 | Method for realizing automatic establishment of specific OM channel for 3G base station |
| CN102292963A (en) * | 2009-01-22 | 2011-12-21 | 瑞典爱立信有限公司 | Address allocation in a network |
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| US7983716B2 (en) * | 2003-09-30 | 2011-07-19 | Interdigital Technology Corporation | Centralized radio network controller |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1722872A (en) * | 2004-07-15 | 2006-01-18 | 大唐移动通信设备有限公司 | Method for realizing automatic establishment of specific OM channel for 3G base station |
| CN102292963A (en) * | 2009-01-22 | 2011-12-21 | 瑞典爱立信有限公司 | Address allocation in a network |
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