CN101232402B - Wireless network system and communication method thereof - Google Patents

Wireless network system and communication method thereof Download PDF

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Publication number
CN101232402B
CN101232402B CN2008100651581A CN200810065158A CN101232402B CN 101232402 B CN101232402 B CN 101232402B CN 2008100651581 A CN2008100651581 A CN 2008100651581A CN 200810065158 A CN200810065158 A CN 200810065158A CN 101232402 B CN101232402 B CN 101232402B
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China
Prior art keywords
controller
rnc
base station
ownership
fault
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CN2008100651581A
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CN101232402A (en
Inventor
秦圣奕
王姗姗
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN2008100651581A priority Critical patent/CN101232402B/en
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Priority claimed from PCT/CN2009/070071 external-priority patent/WO2009089786A1/en
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Publication of CN101232402B publication Critical patent/CN101232402B/en
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Abstract

The embodiment of the invention discloses a wireless network system, which comprises a controller resource cell including all or some controllers in a wireless network. The controller resource cell includes a first controller and a second controller. The first controller is used for establishing a master attribution link with a base station, and the second controller is used for establishing a slave attribution link with the base station. When the master attribution link fails, the second controller is used for establishing a new master attribution link with the base station. The embodiment of the invention further discloses a communication method of the wireless network system, a controller and a base station. The scheme provided by the embodiment of the invention improves the reliability of network, increases utilization ratio of device resources and resistance to burst flow, reduces cost, shortens time for disaster-tolerant switching/interrupting service, and can satisfy high reliability requirement of a network operator.

Description

The Radio Network System and the means of communication thereof
Technical field
The present invention relates to the communications field, relate in particular to a kind of Radio Network System and the means of communication thereof.
Background technology
Along with mobile service, as the explosive growth of speech business, data traffic requirement, operator is to the base station controller of wireless access mesh portions, and (Radio Network Controller, capacity requirement RNC) begins to improve as radio network controller.Development of technology provides guarantee for the significantly raising of place capacity, integrated level.In its capacity increase, also progressively increasing as the responsibility of the base station controller of wireless access network core.
With Universal Mobile Telecommunications System (Universal Mobile Telecommunications System, UMTS) system is an example, RNC is with network element such as core net, base station are connected by each interface on every side in the network system.Wherein the interface connection can be a physical connection, also can be that logic connects.The current wireless Access Network is RNS (Radio Network Subsystem, RNS) under the framework, a base station (NodeB) only connects a RNC, RNC is the control centre of RNS, control all subscriber equipmenies in the whole RNS overlay area (User Equipment, wireless access business UE).Though the reliability of RNC equipment is also very high, but because RNC is the RNS single point failure point, in case RNC breaks down, whole RNS overlay area all can't provide the wireless access service access, this has caused the worry of operator to network security, even clearly proposes the network security demand.
For solving network security problem, existing first kind of network architecture scheme is included in and increases base station controller in the network, backup as the RNC node, when certain RNC breaks down, NodeB can detect with being connected of its ownership RNC and interrupt, NodeB will use different transmission configuration to attempt in turn being connected with some other RNC, and up to being communicated with one of them RNC, the user who continues as the NodeB overlay area provides service.
Existing second kind of network architecture scheme increases the cold standby of RNC node in network, do not power on when promptly Bei Fen RNC is flat.When certain RNC breaks down, substitute the RNC work of fault by the RNC of operator's this cold standby of manual configuration, the user who continues as the NodeB overlay area provides service.
Existing the third network architecture scheme increases the warm spare of RNC node in network, the detection of transport layer is provided when promptly Bei Fen RNC is flat.When certain RNC broke down, the RNC of this warm spare initiatively substituted the RNC work of fault, and the user who continues as the NodeB overlay area provides service.
For solving network security problem, the inventor analyzes existing network architecture scheme.
By analysis, the inventor thinks that first kind of network architecture disaster tolerance handover success rate descends, and cause the reliability of whole Disaster Tolerant Scheme low, and disaster tolerance is longer switching time.
The gigantic project of second kind of network architecture disaster tolerance, resume speed is slow, causes the reliability of whole Disaster Tolerant Scheme low.
The third network architecture disaster tolerance scope is less relatively, has increased cost, has reduced resource utilization.
Summary of the invention
The technical problem that the embodiment of the invention will solve is to propose a kind of new wireless network communication system and method thereof, and this wireless network communication system has stronger network disaster tolerance ability.
For addressing the above problem, the embodiment of the invention proposes a kind of Radio Network System, and this system comprises the controller resource pool, is made up of all or part of controller in the wireless network.This controller resource pool comprises first controller and second controller, this first controller is used for setting up main ownership with the base station and is connected, this second controller is used for being connected from ownership with this base station foundation, when this main ownership connected fault, this second controller was used for setting up new main ownership with this base station and is connected.
On the other hand, the embodiment of the invention also proposes a kind of means of communication of Radio Network System.The means of communication of this Radio Network System comprise that the main ownership of first controller foundation in base station and the controller resource pool is connected, and described controller resource pool is made up of all or part of controller in the Radio Network System; Be connected from ownership with second controller foundation in the controller resource pool; When main ownership connected fault, the base station was set up new main ownership with second controller and is connected.
The embodiment of the invention also proposes the controller in a kind of Radio Network System, and it comprises first interface unit, is used for also comprising first controller with other controller communications, to form the controller resource pool in this controller resource pool; Second interface unit is used for being connected from ownership with base station foundation, and wherein this base station is set up with this first controller and is connected main the ownership, and this second interface also is used for when master's ownership connects fault, sets up with this base station to be connected new main the ownership.
The embodiment of the invention also proposes the controller in another Radio Network System, and it comprises first interface unit, is used for also comprising second controller with other controller communications, to form the controller resource pool in this controller resource pool; Second interface unit is used for setting up main ownership with the base station and is connected, and wherein this base station is set up from ownership with this second controller and is connected, and when main ownership connected fault, described second controller was set up new main ownership with this base station and is connected.
The embodiment of the invention also proposes the base station in a kind of Radio Network System, wherein, this Radio Network System comprises by all or part of controller in the wireless network forms the controller resource pool, this base station comprises second interface unit, be used for setting up main ownership and be connected, be connected from ownership with the foundation of second controller with first controller of controller resource pool; Judging unit is used for when described main ownership connects fault, triggers described second interface unit and sets up with second controller and be connected new main the ownership.
The technical scheme of the embodiment of the invention has improved the reliability of the network operation, can effectively avoid the risk of the communication disruption that causes because of controller equiment fault or transmission fault, and powerful guarantee communication network safe and smooth satisfied the demand of operator about network security.
Description of drawings
Fig. 1 is a schematic network structure in the embodiment of the invention.
Fig. 2 is a paging schematic diagram under the network normal condition in the embodiment of the invention.
Fig. 3 is a kind of paging schematic diagram during network failure in the embodiment of the invention.
Fig. 4 is the another kind of paging schematic diagram during network failure in the embodiment of the invention.
Fig. 5 is the third paging schematic diagram during network failure in the embodiment of the invention.
Fig. 6 is the structural representation of Radio Network System middle controller in the embodiment of the invention.
Fig. 7 is the structural representation of base station in the Radio Network System in the embodiment of the invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail:
In the embodiment of the invention, the part or all of controller of Radio Network System is formed resource pool.The controller resource pool, comprise first controller and second controller, this first controller is set up main ownership with the base station and is connected, and this second controller is set up from ownership with this base station and is connected, when this main ownership connected fault, the 2nd RNC was used for setting up new main ownership with this base station and is connected.
For convenience of description, the embodiment of the invention is described and is only described with the example that is applied as in the UMTS system.Yet; generally; system of the present invention can be other wireless communication systems; its method also can be applied in other wireless communication systems; as global system for mobile communications (Global Systemfor Mobile communication; GSM); the UMTS system; code division multiple access inserts 2000 (CodeDivision Multiple Access 2000; CDMA2000) system and Time Division-Synchronous Code Division Multiple Access (TimeDivision-Synchronous Code Division Multiple Access; TD-SCDMA) system; can not therefore think that the present invention only can be applied to the UMTS system, therefore any variation about application system all should be embodiment of the invention protection range and contains.
The UMTS system is that (therefore Wideband Code Division MultipleAccess, the WCDMA) 3-G (Generation Three mobile communication system) of air interface technologies also call the WCDMA communication system to the UMTS system to the employing Wideband Code Division Multiple Access (WCDMA) usually.
The network portion of UMTS system be divided into core net (Core Network, CN) and Radio Access Network (Radio Access Network, RAN) two parts.All voice calls are connected with data in the CN processing UMTS system, and the exchange of realization and external network and routing function, its from be divided in logic circuit commutative field (Circuit Switched Domain, CS) and packet-switched domain (Packet SwitchedDomain, PS).CN and RAN are actually CN and are connected by the Iu interface communication with RNC.
Radio Access Network also claims RNS (RNS), and a RNS is made up of a radio network controller (RNC) and a plurality of base station (NodeB), is used to handle all and wireless function associated.RNC control UMTS Terrestrial radio access network (UMTS Terrestrial radio accessnetwork, UTRAN) Radio Resource, promptly distribute to be attached thereto with control or the Radio Resource of relevant NodeB, by other RNC communications in Iur interface and the network by Iub interface.RNC mainly finishes RRC and connects foundation and disconnect, switch functions such as (direct-cut operation, soft handover, More Soft Handoff), the merging of grand diversity, RRM.Specific as follows:
(1) executive system information broadcast and system's access control function;
(2) mobile management functions such as switching and Serving RNC migration;
(3) RRM and controlled function such as grand diversity merging, power control, radio bearer distribution.
NodeB is the base station of UMTS system, comprises radio receiving-transmitting unit and Base-Band Processing parts.NodeB mainly finishes the processing of Iub protocol processes and Uu interface physical layer protocol, finishes the conversion of the data flow between Iub interface and the Uu interface, also participates in a part of RRM simultaneously.Its major function is spread spectrum, modulation, chnnel coding and despreading, demodulation, channel-decoding, also comprises the functions such as mutual conversion of baseband signal and radiofrequency signal.
For solving network security problem, on as analysed basis, the present invention proposes new Radio Network System to prior art.First embodiment of the present invention Radio Network System, as shown in Figure 1.
In the first embodiment of the present invention Radio Network System, Radio Network System comprises CN, the RNC that is connected with CN by Iu, and the NodeB that is connected with RNC by the Iur interface.System also comprises the RNC resource pool of being made up of all or part of RNC in the Radio Network System (hereinafter to be referred as RNCPOOL), this RNC POOL comprises that one the one RNC is used for setting up main ownership with NodeB and is connected, one the 2nd RNC is used for being connected from ownership with NodeB foundation, when this main ownership connects fault, be used for setting up new main ownership and be connected with this NodeB.
In first embodiment, all or part of RNC of Access Network forms RNC POOL.RNCPOOL can form RNC POOL thereby obtain this configuration information when RNC powers on by static setting the in the configuration information of RNC, also can dynamically arrange when the network operation, and two or more RNC are formed RNC POOL.Quantity in the Access Network among the RNC POOL can be by operator as required or concrete condition configuration, even in network operation process, can also increase new RNC by data configuration and add resource pool or some RNC is withdrawed from resource pool.The quantity of RNC can only be the necessary RNC quantity of the network operation among the RNC POOL, and promptly N RNC POOL also can more than minimum requirement configuration, be N+1 RNC POOL or N+M RNCPOOL in order to carry out load sharing.Wherein, the redundant resource of N+1 or N+M RNC POOL can be divided equally in RNC POOL each above RNC, thereby further improves network reliability, the utilance that increases device resource and the ability of anti-burst flow.In this network architecture, normal conditions, the collapsibility fault takes place in any one RNC in the RNC POOL, can use other RNC that service is provided.
RNC among the RNC POOL sets up transmission link by Iu interface and CN, and forms transmission network.This transmission network can be asynchronous transfer mode (Asynchronous Transfer Mode, ATM) transmission network, perhaps Internet protocol (Internet Protocol, IP) transmission network.
A plurality of RNC among the RNC POOL can set up attaching relation with same NodeB.Wherein being used for and NodeB sets up the RNC that main ownership is connected, be the main ownership RNC of this NodeB as the RNC among first embodiment, and remaining is set up from the RNC of ownership connection, as the 2nd RNC among first embodiment be this NodeB from belonging to RNC.
From the angle of NodeB, the RNC among the RNC POOL of NodeB connection more than 2 or 2, promptly NodeB adopts many ownership scheme.The first embodiment Radio Network System as shown in Figure 1, what the NodeB that RNC POOL is managed adopted is dual-homed scheme.In addition, in the network architecture of reality, operator can also adopt many ownership hybrid plan dual-homed, that part NodeB adopts many ownership with part NodeB according to actual conditions.The main NodeB correspondence that belongs to same RNC can be inequality from ownership RNC.The master belongs to, can static state be provided with the configuration information of NodeB or RNC from attaching information, obtains this configuration information when NodeB powers on; Perhaps also can in network operation process, be provided with, dynamically adjust, perhaps artificially be provided with, adjust by operating maintenance module by network optimization algorithm self adaptation.In first embodiment, network can adopt the load sharing algorithm, according to the capacity ratio of each RNC in the RNC POOL come equally loaded configuration NodeB from ownership RNC; Perhaps according to the live traffice amount situation of each RNC dynamically adjust NodeB from ownership RNC, reaching the optimization network configuration, improve the purpose of network reliability.
In first embodiment, as shown in Figure 1, NodeB1 provides 2 cover Iub interface, is used for connecting respectively 2 RNC.The logical links of this 2 cover Iub interface can be carried on independently on the physical link, also can be carried on the same physical link.Use independently physical link, can avoid the Single Point of Faliure of this section transmission, improved transmission reliability; If physically can not be redundant, these logical links can be carried on the same physical link, distinguish different logical links at network side by the ATM/IP layer, exchange, with different logical links separately, be sent to different RNC respectively.First embodiment shown in Figure 1 adopts logical links to be carried on the same physical link, and network side is distinguished the scheme of Different Logic link by the IP layer.Transmission link between NodeB and the RNC is formed transmission network.
In first embodiment, NodeB also be used for regularly or in real time to a RNC and the 2nd RNC be connected link and two RNC detect.Be connected fault when NodeB detects with a RNC, this NodeB initiates handover operation, switches on the 2nd RNC.NodeB comprises the fault of a RNC and the transmission fault of a RNC and NodeB with the fault that is connected of a RNC.When NodeB detected the transmission fault of a RNC and NodeB and switches to the 2nd RNC, a RNC also was used to the 2nd RNC and NodeB to be provided to the signaling relay function of CN.
In the Radio Network System of second embodiment, different with first embodiment is, NodeB can connect more than 2 RNC, promptly NodeB have a main ownership RNC and more than one from ownership RNC.Main ownership as NodeB and main ownership RNC is connected fault, and NodeB can pass through the handover optimization algorithm, selects one to switch from belonging to RNC, also can select one to switch from belonging to RNC at random.The handover optimization algorithm here can be to determine according to RNC ID size the algorithm of priority, perhaps determines the algorithm etc. of priority according to the RNC load state.When NodeB detected from ownership RNC fault, the communication module of NodeB was notified its main ownership RNC, was switched from ownership RNC by the main ownership RNC ruling of this NodeB.NodeB can adopt aforesaid handover optimization algorithm to select the new RNC from ownership.
In two embodiment of Radio Network System, the RNC in the RNC POOL adopts the multiple signaling points technology to realize the signalling point backup, and promptly after certain RNC fault, other the one or more RNC in the POOL adhere to signalling point and the RNC ID of fault RNC, act on behalf of its business.Adopt between the RNC in the RNC POOL and detect the whether unobstructed fault detection mechanism of logical links, such as heartbeat detection.In an embodiment, transmit heartbeat signal to detect by Iu or Iur interface mutually between the RNC, when the heartbeat signal of certain RNC is lost, then think this RNC fault.Usually, the individual interface fault does not influence the transmission of detection signal, only just thinks the RNC fault when detection signal is thoroughly lost.
RNC in the RNC POOL can as telephone traffic, the load of signalling point ordering, access at present, determine the RNC that acts on behalf of of fault RNC signalling point according to certain rule.That acts on behalf of RNC determines that other modes can also be arranged, as being the RNC that acts on behalf of of RNC configuring static when the network configuration, when RNC breaks down, this static state act on behalf of the work that RNC acts on behalf of fault RNC.Another kind of mode is that other RNC in the RNCPOOL receive the heartbeat signal that this RNC sends, and when this RNC fault, other RNC detect less than heartbeat, and this moment, other RNC adhered to the signalling point of fault RNC, all will be as the RNC that acts on behalf of of fault RNC; When a certain signaling paging, these act on behalf of RNC determines to carry out this signaling paging operation according to current parameters such as load condition the RNC that acts on behalf of.Also having a kind of mode is that other interior RNC of RNCPOOL receive the heartbeat signal that this RNC sends, and when this RNC fault, other RNC detect less than heartbeat, and this moment, other RNC adhered to the signalling point of fault RNC, all will be as the RNC that acts on behalf of of fault RNC; When a certain signaling paging, network determines that at random one acts on behalf of RNC and carries out the signaling paging operation.
In two embodiment of Radio Network System, all RNC in CN and the RNC POOL are totally interconnected, act on behalf of RNC by the Iu interface, obtain the signalling point information of fault RNC by the Iu interface of CN and fault RNC.Perhaps, RNC writes down signalling point information and the RNC id information of the every other RNC in the RNC POOL when parameter configuration, when RNC finds that by testing mechanism heartbeat signal that certain RNC sends is lost, promptly judge this RNC fault, this moment, RNC can obtain signalling point information and the RNC id information of fault RNC by the record of query argument configuration.Act on behalf of RNC and be attached to fault RNC signalling point, thereby act on behalf of this fault RNC by the multiple signaling points technology.In addition, RNCPOOL has also increased " NodeB belongs to record " and " signaling is transferred to the treatment mechanism from ownership RNC by the Iur interface ".To share the ownership situation of interior each RNC of whole RNC POOL by as Iur interface, Operation and Maintenance interface between the RNC about NodeB.Usually, all RNC in the RNC POOL carry out record to the ownership of NodeB.
Usually, each RNC is equipped with a plurality of logic entities, and each logic entity all can externally show as a RNC.When certain RNC determines to act on behalf of fault RNC, this RNC obtains signalling point information and the RNC id information of fault RNC, and be that idle logic entity activates with its certain current state, be arranged to the signalling point information and the RNC id information of this logic entity consistent with fault RNC.After setting was finished, when CN need carry out paging to fault RNC, this RNC can act on behalf of this fault RNC and operate.
Among the embodiment, when RNC POOL required almost arbitrarily the RNC fault, other RNC can act on behalf of its business, therefore can be in each RNC disposes RNC POOL nearly all RNC parameter information.This parameter information can be cell parameter, and main home base station is to the transmission link of this RNC, and one of the above-mentioned information such as neighbor cell configuration of main home base station or combination in any.Need to prove that in the cell parameter configuration, many home base stations use different sub-district ID when difference belong to, lead the sub-district ID that belongs to but still use during configuring adjacent cell.RNC can also dispose the signalling point of all RNC in the RNC POOL, and this RNC is to signaling link, signaling link set and the route of peripheral network element such as CN, NodeB, and this RNC is to the AAL2 PATH or the IP PATH of peripheral network element.When moving, signalling point can observe certain rule between a plurality of RNC, as numbering from small to large or order from big to small.Numbering rule from small to large represents that fault RNC is preferentially acted on behalf of by the RNC of signalling point minimum in the POOL; Numbering rule from big to small represents that fault RNC is preferentially acted on behalf of by the RNC of signalling point maximum in the POOL.
CN sends to signaling and acts on behalf of RNC by the signaling alternate route, if act on behalf of the main ownership RNC that RNC is dual-homed base station, then receive message and handle; If act on behalf of RNC is not the main ownership RNC of dual-homed base station, then acts on behalf of the configuration parameter of RNC according to dual-homed base station, is provided to the SCCP relay function of main ownership RNC, and user's face can still adopt straight-through scheme.
In two embodiment of Radio Network System, after a RNC fault, the 2nd RNC can also be used to act on behalf of a RNC, reception CN sends the communication information to a RNC, and communication information is handled.Perhaps, wireless communication system can also comprise one the 3rd RNC, the 3rd RNC is used for acting on behalf of a RNC when a RNC fault, reception CN sends the communication information to a RNC, set up the information that main ownership is connected according to NodeB and the 2nd RNC, this communication information is transmitted to the 2nd RNC, and communication information is handled by the 2nd RNC.Be provided with the Iur interface between the RNC, can be used for the information that transmission NodeB is connected with the main ownership of the 2nd RNC foundation in RNC POOL.
In an embodiment, Iu-PS interface and Iu-CS adopt existing mechanism, realize that RNC disaster tolerance and NodeB are dual-homed transparent fully to SGSN, do not revise interface protocol.
Configuration data relevant with disaster tolerance on the RNC POOL adopts automatic inspection, prevents that unusual the modification from causing disaster tolerance to lose efficacy; Adopt health examination under the RNC POOL normal condition, to detect its availability, health examination comprises external interface availability, crucial veneer availability or the like.
RNC also can support single home base station and dual-homed base station simultaneously, and supports the configuring maintenance of single home base station and dual-homed base station.Usually, the RNC configuration comprises base station property configuration, the transmission configuration of single home base station, the transmission configuration of dual-homed base station, the neighbor cell configuration of neighbor cell configuration, dual-homed sub-district and the dual-homed sub-district of cell configuration, single home cell and the dual-homed sub-district of dual-homed (base station) sub-district.In addition, RNC also is provided with functions such as status poll, fault detect, traffic statistic, tracking, daily record, and is introducing dual-homed base station, the configuring maintenance easily of still providing convenience, realize good serviceability, and as far as possible little to the influence of existing OM system architecture.
RNC POOL support to use manmachine command to revise current NodeB or the main RNC of ownership of sub-district it on, support to use manmachine command revise current NodeB or it on the sub-district from belonging to RNC, support to use manmachine command that RNC and POOL in the RNC POOL are isolated, and carry out the load balancing adjustment simultaneously, be convenient to overhaul and upgrade.
The embodiment of the invention also discloses the means of communication of Radio Network System, and wherein this Radio Network System is the disclosed Radio Network System of the foregoing description.The means of communication of the 3rd embodiment Radio Network System comprise NodeB and being connected main ownership of RNC foundation among the RNC POOL, this RNC POOL is by forming to small part RNC in the Radio Network System, be connected from ownership with the 2nd RNC foundation, when main ownership connects fault, set up new main ownership with the 2nd RNC and be connected.
In the means of communication of the 3rd embodiment Radio Network System, NodeB can also with set up subordinate more than 2 RNC and be connected, promptly NodeB have a main ownership RNC and more than one from ownership RNC.Specifically set up described in the embodiment of the mode of subordinate such as preceding Radio Network System.
NodeB regularly or in real time to a RNC and the 2nd RNC be connected link and two RNC detect.Be connected fault when NodeB detects with a RNC, this NodeB initiates handover operation, switches on the 2nd RNC.NodeB comprises the fault of a RNC and the transmission fault of a RNC and NodeB with the fault that is connected of a RNC.When NodeB detected the transmission fault of a RNC and NodeB and switches to the 2nd RNC, a RNC was the signaling relay function that the 2nd RNC and NodeB are provided to CN.
NodeB is connected fault as NodeB with the main ownership of main ownership RNC when setting up subordinate relation more than 2 RNC, and NodeB can pass through the handover optimization algorithm, and selection one is switched from belonging to RNC, also can select one to switch from belonging to RNC at random.Description among the embodiment of the also visible Radio Network System of concrete algorithm.
The means of communication embodiment of Radio Network System of the present invention, main ownership connect fault, NodeB and the 2nd RNC set up new main belong to be connected after, the signaling process of paging sees also Fig. 2 to Fig. 5.In an embodiment, the UE that is positioned at the sub-district of Node1 need set up the paging flow process.Need to prove,, only provide several network elements that must relate among the figure in order to simplify description; In addition, following these embodiment are actual is the further refinement of the means of communication under different scenes of the 3rd embodiment Radio Network System.
To Radio Network System shown in Figure 5, RNC1, RNC2 and RNC3 are the RNC among the RNCPOOL as Fig. 2.RNC is connected by the Iub interface communication with NodeB, connects by the Iur interface between the RNC, and RNC is connected by the Iu interface with CN.The transmission link of the transmission link of RNC and CN and RNC and NodeB is formed transmission network respectively.This two transmission network can be atm network or IP network.RNC1 is the main ownership RNC of NodeB1, RNC2 be NodeB1 from ownership RNC, RNC3 and NodeB1 among Fig. 4 do not have attaching relation.Dotted line among the figure is represented signaling paths.
In the means of communication of the 4th embodiment Radio Network System as shown in Figure 2, the working properly and current RNC1 that belongs to of NodeB1 of RNC1.When ICQ, CN sends to RNC1 according to RNC ID with the message that needs RNC1 handles by the Iu interface, and RNC1 receives message and handles, and this processing mode is consistent with existing mode, repeats no more.In concrete paging flow process, CN can search RNC according to RNCID, also can also search RNC according to both combinations according to signalling point information searching RNC.In subsequent embodiment was described, for convenience, searching RNC with CN according to RNC ID was that example describes.
Among the 5th embodiment as shown in Figure 3, RNC1 is normal, but RNC1 and NodeB1 transmission fault, and this moment, NodeB1 switched to RNC2, and RNC2 is the RNC that acts on behalf of of RNC1.
In the 5th embodiment, CN sends to RNC1 according to RNC ID with the message that needs RNC1 handles, and RNC1 initiates SCCP to RNC2, and (signaling connection controlpart SCCP) connects the process of setting up.RNC2 handles this message, as provides Radio Link to set up function, and returns processing response.After receiving processing response, RNC1 returns processing response to CN.Need to prove that in the 5th embodiment, NodeB1 has switched to RNC2, this moment, RNC2 became the new main ownership RNC of NodeB1.
Among the 6th embodiment as shown in Figure 4, the RNC1 fault, this moment, NodeB1 switched to RNC2, and RNC2 is the RNC that acts on behalf of of RNC1.
In the 6th embodiment, RNC2 is the RNC that acts on behalf of of RNC1, and promptly RNC2 obtains signalling point and the RNC ID of RNC1, and activates an one logic entity, and the signalling point information of this logic entity is set to consistent with RNC1 with the RNC id information.In paging, CN sends the message that needs RNC1 handles according to RNC ID.Because this moment, the logic entity of RNC2 had signalling point information and the RNC id information of RNC1, thus RNC2 can receive also that CN sends need the message that RNC1 handles and handle.In the 6th embodiment, after NodeB1 switched to RNC2, RNC2 was the main ownership RNC of NodeB1, was connected with the main ownership of NodeB1 by it and set up the communication traffic connection.
Among the 7th embodiment as shown in Figure 5, the RNC1 fault, this moment, NodeB1 switched to RNC2, and this moment, RNC3 was the RNC that acts on behalf of of RNC1, and RNC3 and NodeB1 do not have attaching relation.
In the paging of the 7th embodiment, CN sends the message that needs RNC1 handles according to RNC ID.The logic entity of RNC3 has signalling point information and the RNC id information of RNC1 at this moment, therefore RNC3 receives the message that needs RNC1 to handle that CN sends, but because there is not attaching relation in RNC3 with NodeB1, be not connect between them, can't directly set up communication, therefore need intermediate NE as intermediary.RNC among the RNC POOL can be by principal and subordinate's home base station information of Iu interface or Iur interface or shared each RNC of Operation and Maintenance interface, and RNC3 can be by this shared information searching to the NodeB that need set up communication.Main ownership RNC, the i.e. RNC2 of this moment.RNC3 passes through Iur interface and RNC2 communication, is connected with the main ownership of NodeB 1 by it by RNC2 and sets up the communication service connection.In this embodiment, RNC3 is provided to the SCCP relay function of RNC2.
The embodiment of the invention also discloses the controller of Radio Network System.Controller in the 8th embodiment Radio Network System as shown in Figure 6 comprises first interface unit, is used for also comprising a RNC with other RNC communications, to form RNC POOL among this RNC POOL; Second interface unit is used for being connected from ownership with NodeB foundation, and wherein this NodeB sets up with a RNC and is connected main the ownership, and this second interface also is used for when master's ownership connects fault, sets up with this NodeB to be connected new main the ownership.In an embodiment, first interface unit is the Iur interface unit, and second interface unit is the Iub interface unit.In other wireless communication system, first interface unit is represented the interface unit between the controller, and second interface unit is represented the interface unit between controller and the base station.
Controller in the 8th embodiment Radio Network System also comprises detecting unit, and detecting unit links to each other with the Iur interface unit, sends detection signal by the Iur interface to other RNC, as the heartbeat signal.Because in an embodiment, all RNC of RNC POOL are connected with CN, so detecting unit can also pass through the Iu interface, send detection signal by CN with being connected to other RNC of other RNC.In the 8th embodiment, transmit heartbeat signal to detect by the Iur interface mutually between the RNC, when the heartbeat signal of certain RNC is lost, then think this RNC fault.Usually, the individual interface fault does not influence the transmission of detection signal, only just thinks the RNC fault when detection signal is thoroughly lost.
In the 8th embodiment controller as shown in Figure 6, agent unit is used for acting on behalf of these faults RNC when this RNC detects other RNC faults.Agent unit is a logic entity, can act on behalf of a plurality of RNC simultaneously.The embodiment of concrete RNC agency's the visible Radio Network System of description repeats no more.
In the 8th embodiment, controller can also comprise TU Trunk Unit and memory cell.TU Trunk Unit is used for providing relay services to other RNC.Memory cell is used to store nearly all RNC parameter information in the RNC POOL.This parameter information can be cell parameter, and main home base station is to the transmission link of this RNC, and one of the above-mentioned information such as neighbor cell configuration of main home base station or combination in any.
The Iur interface unit can also be used for RNC POOL in other RNC communications, the current attaching information in base station of shared RNC POOL management.
Among controller the 8th embodiment as shown in Figure 6, all establish a connection mutually between each unit.
The embodiment of the invention also discloses the base station of Radio Network System.Base station in the 9th embodiment Radio Network System comprises second interface unit, is used for setting up main ownership with the RNC of RNC POOL and is connected, and sets up from ownership with the 2nd RNC to be connected; Judging unit is used for when described main ownership connects fault, triggers described second interface unit and sets up with second controller and be connected new main the ownership.In the base station of the 9th embodiment Radio Network System as shown in Figure 7, second interface unit is the Iub interface unit.In other wireless communication system, second interface unit is represented the interface unit between controller and the base station.
As shown in Figure 7, NodeB be provided with detecting unit regularly or in real time to its main ownership RNC with from ownership RNC be connected link and corresponding RNC detects.In an embodiment, the detection principal and subordinate belongs to the connection link of RNC and the detecting unit of corresponding RNC can be same detecting unit, also can be different detection units.Testing result reports judging unit, and when detecting when connecting fault, judging unit triggers promptly that main ownership is switched or from the ownership handover operation.In an embodiment, connect fault and comprise transmission fault or corresponding RNC fault.Judging unit triggers the embodiment of the visible Radio Network System of specific descriptions of handover operation, repeats no more.
In the base station of the 9th embodiment Radio Network System as shown in Figure 7, this base station also comprises a communication unit, and this communication unit is by Iub interface and RNC communication, by eating dishes without rice or wine and the UE communication.In the 9th embodiment, when detecting unit detected from ownership connection fault, communication unit can be used for notifying main ownership RNC ruling to switch from ownership RNC.In an embodiment, all establish a connection mutually between each unit.
In sum, the Radio Network System of the embodiment of the invention and the means of communication thereof improve network reliability, the utilance of device resource and the ability of anti-burst flow have been increased, reduce cost, shortened the disaster tolerance handoff business hours, satisfied the high reliability demand of operator.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (28)

1. Radio Network System, it is characterized in that: described system comprises
The controller resource pool, form by all or part of controller in the wireless network, comprise first controller and second controller, described first controller is used for setting up main ownership with the base station and is connected, described second controller is used for being connected from ownership with the foundation of described base station, when described main ownership connects fault, described second controller is used for setting up new main ownership with described base station and is connected, described system also be used for according to the capacity ratio equally loaded of each controller in the described controller resource pool dispose described base station from the home control device, perhaps, according to the live traffice amount situation of each controller in the described controller resource pool dynamically adjust described base station from the home control device.
2. system according to claim 1, it is characterized in that: described controller also is used for, when the controller in the described controller resource pool breaks down, other one or more controllers adhere to the signalling point and the RNC ID of the described controller that breaks down in the controller resource pool, act on behalf of its business.
3. the system as claimed in claim 1 is characterized in that: described base station also is used for main ownership connected to be detected, and after detecting described main ownership and connecting fault, the base station switches to described second controller, is connected to set up main ownership with described second controller.
4. the system as claimed in claim 1 is characterized in that: it is the transmission fault of described base station and described first controller that described main ownership connects fault, or described first controller failure.
5. system as claimed in claim 4 is characterized in that: described first controller also is used for when the transmission fault of described base station and described first controller, for described second controller provides the signaling relay function.
6. system as claimed in claim 4 is characterized in that: described second controller also is used for acting on behalf of described first controller when described first controller failure.
7. system as claimed in claim 4 is characterized in that: described system comprises that further the 3rd controller is used for acting on behalf of described first controller when described first controller failure.
8. system as claimed in claim 7, it is characterized in that: described second controller or described the 3rd controller also are used to adopt fault detection mechanism that fault detect is carried out in described first control, think described first controller failure when detection, described second controller or described the 3rd controller are acted on behalf of described first controller.
9. system according to claim 8, it is characterized in that, described fault detection mechanism is, detect by Iu or Iur interface transmission heartbeat signal between the controller in the described controller resource pool, when the heartbeat signal of wherein one or more controllers is lost, think that the controller of described dropout breaks down.
10. the system as claimed in claim 1, it is characterized in that: described base station also is used for base station and being connected from ownership of described second controller are detected, after detecting the transmission fault or described second controller failure that connects from ownership, described base station is used to notify first controller of main ownership connection, and the ruling switch controller is set up new connecting from ownership.
11. system as claimed in claim 10 is characterized in that: described base station also is used for setting up new connecting from ownership according to network optimization principle from the resource pool selection control.
12. the system as claimed in claim 1 is characterized in that: be provided with interface between the controller in the described resource pool, be used for sharing the information of connected base station.
13. the means of communication of a Radio Network System is characterized in that: described method comprises
The base station is set up main ownership with first controller in the controller resource pool and is connected, and described controller resource pool is made up of the part or all of controller in the Radio Network System,
The base station is set up from ownership with second controller in the controller resource pool and is connected,
When main ownership connected fault, the base station was set up new main ownership with described second controller and is connected,
According to the capacity ratio equally loaded of each controller in the described controller resource pool dispose described base station from the home control device, perhaps, according to the live traffice amount situation of each controller in the described controller resource pool dynamically adjust described base station from the home control device.
14. method as claimed in claim 13, it is characterized in that: described method further comprises: when the controller in the described controller resource pool breaks down, other one or more controllers adhere to the signalling point and the RNC ID of the described controller that breaks down in the controller resource pool, act on behalf of its business.
15. method as claimed in claim 13, it is characterized in that: described method comprises that further connection detects to master's ownership in described base station, after detecting described main ownership connection fault, the base station switches to described second controller, sets up new main ownership with described second controller and is connected.
16. method as claimed in claim 13 is characterized in that: it is the transmission fault or first controller failure of described base station and described first controller that described main ownership connects fault.
17. method as claimed in claim 16 is characterized in that: described method comprises that further when the transmission fault of described base station and described first controller, described first controller provides the signaling relay function for described second controller.
18. method as claimed in claim 16 is characterized in that: described method comprises that further described second controller is acted on behalf of described first controller when described first controller failure.
19. method as claimed in claim 16 is characterized in that: described method comprises that further the 3rd controller is acted on behalf of described first controller when described first controller failure.
20. method as claimed in claim 19, it is characterized in that: described method comprises that further described second controller or described the 3rd controller adopt fault detection mechanism that fault detect is carried out in described first control, think described first controller failure when detection, described second controller or described the 3rd controller are acted on behalf of described first controller.
21. method as claimed in claim 13, it is characterized in that: described method further comprises described base station detecting from belonging to be connected base station and described second controller, after detecting the transmission fault or described second controller failure that connects from ownership, first controller that the described base station main ownership of notice connects, the ruling switch controller is set up new connecting from ownership.
22. method as claimed in claim 21 is characterized in that: described method comprises further that described base station is set up according to network optimization principle selection control from resource pool and new connects from ownership.
23. method as claimed in claim 13 is characterized in that: described method further comprises the information of sharing connected base station between the controller in the described resource pool.
24. the controller in the Radio Network System, it is characterized in that: described controller comprises
First interface unit is used for also comprising first controller with other controller communications, to form the controller resource pool in the described controller resource pool;
Second interface unit is used for being connected from ownership with base station foundation, and described base station is set up main ownership with described first controller and is connected, and described second interface also is used for when master's ownership connects fault, sets up new main ownership with described base station and is connected;
Adhesion unit is used for when certain controller of described controller resource pool breaks down, and adheres to the signalling point and the RNC ID of the described controller that breaks down, and acts on behalf of its business.
25. controller as claimed in claim 24 is characterized in that: described controller comprises that further detecting unit carries out fault detect to described first controller.
26. controller as claimed in claim 25 is characterized in that: described controller further comprises agent unit, and when described first controller failure, described controller is acted on behalf of described first controller by agent unit.
27. the controller in the Radio Network System, it is characterized in that: described controller comprises
First interface unit is used for also comprising second controller with other controller communications, to form the controller resource pool in the described controller resource pool;
Second interface unit is used for setting up main ownership with the base station and is connected, and wherein said base station is set up from ownership with described second controller and is connected, and when main ownership connected fault, described second controller was set up new main ownership with described base station and is connected;
Adhesion unit is used for when certain controller of described controller resource pool breaks down, and adheres to the signalling point and the RNC ID of the described controller that breaks down, and acts on behalf of its business.
28. controller as claimed in claim 27 is characterized in that: described controller further comprises TU Trunk Unit, when being used for the transmission fault when described base station and described controller, for described second controller provides relay function.
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