CN101466105A - Automatic configuration method for base station of cellular system - Google Patents
Automatic configuration method for base station of cellular system Download PDFInfo
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- CN101466105A CN101466105A CN 200810204992 CN200810204992A CN101466105A CN 101466105 A CN101466105 A CN 101466105A CN 200810204992 CN200810204992 CN 200810204992 CN 200810204992 A CN200810204992 A CN 200810204992A CN 101466105 A CN101466105 A CN 101466105A
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Abstract
Disclosed is an auto-configuration method of a basic station in a cellular system; firstly, a new basic station can be added into the cellular system in a terminal mode operation way and is used for scanning the adjacent basic stations in the cellular system, and one adjacent basic station which establishes a return link with the operation maintenance center is selected out; the symbolic information and authentication information including the self basic station can be transmitted to the selected basic station; the selected adjacent basic station transmits the authentication information to the operation maintenance center according to the symbolic information; and the operation maintenance center can transmit the corresponding authentication reply information to the selected adjacent basic station through the return link according to the authentication information; the selected adjacent basic station transmits the authentication reply information to a new basic station; the new basic station configures the corresponding IP address according to the received authentication reply information, so as to establish the return link with the operation maintenance center, download the corresponding configuration software and the configuration parameter and execute self installation and self configuration in the basic station mode, thus realizing the basic station mode operation and completing the self-configuration process.
Description
Technical field
The present invention relates to the method for automatic configuration of base station in a kind of cellular system, particularly a kind of method of automatic configuration of carrying out the base station by air interface.
Background technology
Set up self-organizing network (SON, self-organized network), make operations such as network is configured automatically, optimizes, maintenance, become the development trend of future cellular system.No matter be NGMN or 3GPP, all SON classified as one of its important development projects.China FuTURE in the works also with the SON network as one of main special topic of areas of information technology.In the self-organizing cellular network, the base station can be configured after powering on automatically, optimization, Operation and Maintenance, and and the management software of base station, air interface parameters etc. are all downloaded by the self-configuring process and are obtained, can reduce manual maintenance and optimization to greatest extent thus, this is the requirement of future network just also.
See also Fig. 1, it is the flow process of base station self-configuring among the 3GPP LTE and the function that is realized.After the base station powers on or inserts backhaul interface, promptly entering self-configuring is pre-operation state, execution in step (A) at first: basic function starts, in this step, it wants configuration of IP address, (the Operation Administration and Management of detecting operation maintenance centre, OAM), also to obtain network authentication, also need simultaneously to set up related with IAD (aGW), and download base station software and operation parameter etc., then execution in step (B): the initial wireless setting comprises that carrying out the neighbor list configuration reaches and cover, the configuration of capacity relevant parameter etc., enter operation state at last, i.e. execution in step (C): normal operation.
At present, the simplest self-configuration method in base station is to obtain the IP address by DHCP (DHCP), connects by IP broadcast and operation maintenance center then, carries out self-configuring.Certainly also can adopt additive method to carry out the base station self-configuring, for example, the patent No. is in the United States Patent (USP) of 7158533B2, has proposed to use the method for frame relay to be the base station configuration specific address, thereby realizes self-configuring; At publication number is in the United States Patent (USP) of US2008/0098476A1, at 3GPP LTE system, has described interactive identifying procedure and self-configuring process between base station and IAD; And be in the Chinese patent of CN101047639A at publication number, then proposed a kind of by base station use IGMP agreement adding configuration server place multicast domain, obtain configuration server IP address, and then carry out the base station registration, and obtain the method for configuration information by the multicast packets of reception server.Yet, no matter be the DHCP method, or the method in aforementioned each patent documentation, all be based on the hypothesis base station except the air interface that has access link, the backhaul interface that a special use is also arranged in addition is a precondition, be the base station except the air interface that communicates with portable terminal is arranged, also have the backhaul interface that another interface realizes that base station links to each other with management node at least, backhaul interface commonly used is optical fiber interface or Ethernet interface.The base station uses special-purpose backhaul interface and operation maintenance center to connect earlier thus, obtains configuration information again.Obviously, existing these methods will be no longer suitable for the base station of having only a kind of interface to work.As shown in Figure 1, the IP link must be set up with operation maintenance center earlier in the base station before finishing its transmission and radio configuration, download related software and configuration information from the self-configuring server, and this can't accomplish for the base station that wave point is only arranged.
In addition, the frequency spectrum that uses along with cellular system is more and more higher, and the user is increasing to the demand of bandwidth, and the cellular basestation layout density will be more and more higher also.Consider factors such as networking and maintenance cost, in the IMT-A network, will have the base station that does not have conventional backhaul links in a large number, and existing technology can't satisfy the requirement of these base stations to self organizing function.
Therefore, in order to save cost, strengthen the flexibility and the robustness of cellular network, in IEEE 802.16m and 3GPPLTE-Advanced standard proposals, all proposed from backhaul (self-backhauling) technology, promptly adopt the air interface of former cellular system access link to realize the technology of wireless backhaul link, see also Fig. 2, the scene schematic diagram that it coexists for the various base stations of conceiving in the standard proposals, wherein base station 3, base station 4 and base station 5 are for having used the base station from backhaul technologies, and base station 1 and base station 2 are ordinary base station.From the employing of backhaul technologies, the self organization ability of cellular network is further enhanced.In addition, adopt and only need dispose a kind of interface from the base station of backhaul technologies, promptly the original air interface in base station so both can reduce the base station equipment cost, also can increase operator's availability of frequency spectrum.But, how to realize that from this conception of backhaul technologies making the base station can finish self-configuring has become the technical task that those skilled in the art need to be resolved hurrily in fact.
Summary of the invention
The object of the present invention is to provide the method for automatic configuration of base station in a kind of cellular system, to realize only finishing the self-configuring of new base station by air interface.
Reach other purposes in order to achieve the above object, the method of automatic configuration of base station in the cellular system provided by the invention, be applied to have in the cellular system of configuration server and operation maintenance center, it comprises step: 1) new base station adds described cellular system with the terminal pattern operation, and scan each neighbours base station in the described cellular system, therefrom choose a neighbours base station of having set up back haul link with operation maintenance center, and comprise from flag information and authentication information as the base station to its transmission; 2) after the described neighbours base station that is selected receives the flag information and authentication information that described new base station is sent to, described authentication information is forwarded to described operation maintenance center according to described flag information; 3) described operation maintenance center sends corresponding authentication return information by described back haul link to the described neighbours base station that is selected according to described authentication information, and described authentication return information comprises IP address, gateway address and the configuration server address of distributing to new base station; 4) the described neighbours base station that is selected is forwarded to described new base station with described authentication return information; 5) described new base station is according to the described authentication return information configuration corresponding IP address that receives, set up back haul link with described operation maintenance center, and download corresponding configuration software and configuration parameter, and carry out the installation certainly and the self-configuring of base station mode, move with base station mode with realization.
Wherein, described new base station can add described cellular system at random with other-end fair competition mode, and corresponding flag information can be specific code word or specific flag bit; Described new base station also can use special-purpose access channel or the special one or more subchannels in the Random Access Channel to add described cellular system; Described new base station also can use dedicated channel to add described cellular system earlier, if failure adopts the mode of competing with other-end to add described cellular system again.
In addition, described configuration software and configuration parameter can be forwarded to described new base station by the described neighbours base station that is selected after described configuration server is downloaded; Also can directly download by described new base station from described configuration server.
In sum, the method of automatic configuration of base station makes new base station start with terminal pattern in the cellular system of the present invention, and with terminal mode access neighbours base station, and assist to finish authentication by the neighbours base station, obtain the distributing IP address, and then download configuration software and configuration parameter, finish self-configuring, its applicable to do not have traditional special purpose interface (as optical fiber interface) be used for backhaul (backhaul) link or can not be directly and core net set up the new base station of back haul link.
Description of drawings
Fig. 1 is existing base station self-configuring process schematic diagram with backhaul interface.
Fig. 2 is the self-organizing cellular network schematic diagram of conception.
Fig. 3 is the basic procedure schematic diagram of the method for automatic configuration of base station in the cellular system of the present invention.
Fig. 4 is the application schematic diagram of the method for automatic configuration of base station in the cellular system of the present invention.
Embodiment
See also Fig. 3 and Fig. 4, in the cellular system of the present invention in the cellular system of the method for automatic configuration of base station be applied to have configuration server (Self-configuration Subsystem) and operation maintenance center (OAM), described cellular system also comprises new base station (New eNB), base station 1 (eNB1), base station 2 (eNB2), base station 3 (eNB3) etc., wherein, base station 1 and base station 2 are neighbours base stations of new base station, and have all set up back haul link by wire link or Wireless-wire compounded link and operation maintenance center.
In the method for automatic configuration of base station, at first new base station is moved with terminal pattern in described cellular system, because terminal pattern does not have management function, therefore new base station need not to download additional configuration.After the operation, new base station adds described cellular system, and its adding method has three kinds: 1, new base station by with the competition of other-end equality, Random Access Channel realizes initially inserting; 2. new base station uses special-purpose access channel or the special one or more subchannels in the Random Access Channel to realize inserting; 3. new base station uses dedicated channel to insert earlier, if failure is competed with other-end again.Three kinds of methods respectively have its advantage: in method 1, do not need existing random access procedure is changed; Though method 2 need redefine Random Access Channel, can reduce new base station turn-on time; Method 3 can guarantee the preferential access of new base station preferably, therefore, can select corresponding access way to make new base station add described cellular system according to practical situation, each neighbours base station in the new then described cellular system of base station scans, be base station 1 and base station 2, therefrom choose base station 2, and comprise from flag information and authentication information to its transmission, register with request as the base station by Radio Link.If new base station is by realizing inserting at random with terminal challenge, then can be in random access procedure, show it self is the base station with specific code word, but not ordinary terminal, what can comprise in register requirement perhaps that a flag bit represents request registration is new base station with terminal pattern work.In addition, in register requirement, should comprise the relevant information that the base station authenticates to authentication management node (it is the part of operation maintenance center).In addition, show that the flag bit of new base station and authentication information also can design other special signalings and be sent.
Then, the described neighbours base station that is selected, it is base station 2, receive flag information and authentication information that described new base station is sent to, after being register requirement or other special signalings, learn that according to flag bit the node of new access is new base station, just directly the authentication information in the register requirement is transmitted to operation maintenance center.
Then, described operation maintenance center authenticates according to described authentication information, if authentication is passed through, then send corresponding authentication return information by described back haul link to base station 2, described authentication return information comprises IP address, gateway (GM) address and the configuration server address etc. of distributing to new base station.
Then, 2 modes with registration response or other dedicated signalings in base station send to new base station with described authentication return information.
At last, described new base station is set up back haul link with described operation maintenance center, and is downloaded corresponding configuration software and configuration parameter according to the described authentication return information configuration corresponding IP address that receives, carry out the installation certainly and the self-configuring of base station mode, move with base station mode with realization.Described configuration software and configuration parameter can be by the described neighbours base stations that is selected, and promptly base station 2 is forwarded to described new base station after described configuration server is downloaded, and also can be downloaded from described configuration server by described new base station.In the present embodiment, new base station is set up related with gateway node (GM), and from the download of self-configuring server authentication information, configuration software and configuration parameter etc., carry out the installation and the configuration of base station mode then, and startup base station mode, new base station connects with base station mode and OAM system, sets up S1 and X2 link respectively with mobile management entity (MME) and neighbours base station.So far, the base station self-configuring is finished, and new base station enters normal mode of operation.
In sum, the method for automatic configuration of base station can make the new base station that starts with terminal pattern finish self-configuring by the assistance of neighbours base station in the cellular system of the present invention, finally enters normal operating conditions with base station mode.
Claims (7)
1. the method for automatic configuration of base station in the cellular system is applied to have in the cellular system of configuration server and operation maintenance center, it is characterized in that comprising step:
1) new base station adds described cellular system with the terminal pattern operation, and scan each neighbours base station in the described cellular system, therefrom choose a neighbours base station of having set up back haul link with operation maintenance center, and comprise from flag information and authentication information as the base station to its transmission;
2) after the described neighbours base station that is selected receives the flag information and authentication information that described new base station is sent to, described authentication information is forwarded to described operation maintenance center according to described flag information;
3) described operation maintenance center sends corresponding authentication return information by described back haul link to the described neighbours base station that is selected according to described authentication information, and described authentication return information comprises IP address, gateway address and the configuration server address of distributing to new base station;
4) the described neighbours base station that is selected is forwarded to described new base station with described authentication return information;
5) described new base station is according to the described authentication return information configuration corresponding IP address that receives, set up back haul link with described operation maintenance center, and download corresponding configuration software and configuration parameter, and carry out the installation certainly and the self-configuring of base station mode, move with base station mode with realization.
2. the method for automatic configuration of base station in the cellular system as claimed in claim 1 is characterized in that: described new base station is to add described cellular system at random with other-end fair competition mode.
3. the method for automatic configuration of base station in the cellular system as claimed in claim 1 or 2 is characterized in that: described flag information is specific code word or specific flag bit.
4. the method for automatic configuration of base station in the cellular system as claimed in claim 1 is characterized in that: described new base station uses special-purpose access channel or the special one or more subchannels in the Random Access Channel to add described cellular system.
5. the method for automatic configuration of base station in the cellular system as claimed in claim 1 is characterized in that: described new base station uses dedicated channel to add described cellular system earlier, adopts the mode with the other-end competition to add described cellular system again if fail.
6. the method for automatic configuration of base station in the cellular system as claimed in claim 1 is characterized in that: described configuration software and configuration parameter are forwarded to described new base station by the described neighbours base station that is selected after described configuration server is downloaded.
7. the method for automatic configuration of base station in the cellular system as claimed in claim 1 is characterized in that: described configuration software and configuration parameter are directly downloaded from described configuration server by described new base station.
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