CN100433605C - Wireless network controller in CDMA system - Google Patents
Wireless network controller in CDMA system Download PDFInfo
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- CN100433605C CN100433605C CNB2003101226045A CN200310122604A CN100433605C CN 100433605 C CN100433605 C CN 100433605C CN B2003101226045 A CNB2003101226045 A CN B2003101226045A CN 200310122604 A CN200310122604 A CN 200310122604A CN 100433605 C CN100433605 C CN 100433605C
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Abstract
The present invention provides a wireless network controller. The present invention is characterized in that the present invention comprises at least one operation maintenance control panel, at least one call control panel, at least one wireless processing panel, at least one transmission processing panel and at least one exchange panel, wherein the operation maintenance control panel is used for realizing the functions of an operation maintenance subsystem; the call control panel is used for realizing the functions of a call control subsystem and the partial functions of a protocol in a data transmission subsystem; the wireless processing panel is used for realizing the functions of a wireless processing subsystem; the transmission processing panel is used for realizing the partial functions of a bottom layer transmission protocol of a data transmission subsystem; the exchange panel is connected with each of the operation maintenance control panel, the call control panel, the wireless processing panel and the transmission processing panel and used for providing the exchange capacity of a gigabit Ethernet among the panels connected to the exchange panel. Software resources are reasonably distributed and mapped to different hardware panels according to the wireless network controller of the present invention; the fault tolerance, the stability, the reliability and the expansibility of a system are increased, and the load balance among the different hardware panels is realized.
Description
Technical field
The present invention relates to mobile communication system, relate in particular to the radio network controller (RNC) in the broadband CDMA system (WCDMA).
Background technology
Fig. 1 is the schematic diagram of mobile radio system.As shown in Figure 1, this mobile communication system consists essentially of three parts, i.e. the core net of label 103 expressions, the subscriber equipment of the wireless access network of label 104 expressions and label 105 expressions.
In the existing radio network controller, software function module is divided unreasonable, and software is unreasonable to the mapping of hardware, causes the reliability of WCDMA communication system not high, and professional load capacity is not strong, and autgmentability is poor.Specifically, existing radio network controller has following shortcoming.
The first, autgmentability is poor.The software configuration of prior wireless network controller is divided too thin, and the very big software of correlation that must be divided in originally together also repeats to assign on different hardware plates.Like this, relate to a variation (such as the function expansion), each module all will change, and directly causes device extension very poor at every turn.
The second, the maintenance cost height.Prior wireless network controller hardware plate of a great variety, and corresponding backup plate all will be arranged to every kind of hardware plate, this will cause the hardware backup and the maintenance cost of equipment in the future higher.
The 3rd, system complex.Prior wireless network controller soft hardware too disperses, and software mapping repetition and undistinct causes system to be difficult to management and control is complicated.
The 4th, message capacity is low.Because the hardware plate is too much, software module is too disperseed, and causes between internal module the traffic excessive.Because the internal system traffic load is excessive, is difficult to improve the entire system performance, is difficult to improve message capacity.
Therefore, in the WCDMA system, be badly in need of the radio network controller that a kind of autgmentability is strong, maintenance cost is low, system is simple and message capacity is high.
Summary of the invention
The objective of the invention is to satisfy the needs of above-mentioned prior art, the radio network controller in a kind of broadband CDMA system is provided.
To achieve these goals, the invention provides a kind of radio network controller, it is characterized in that comprising:
At least one block operations maintenance control panel is used to realize the function of operation and maintenance sub system, comprises that the resource that is used for described other subsystems of radio network controller uses the device of controlling;
Call out control board at least one, be used for realizing calling out the function of control subsystem and the function of transfer of data subsystem protocol section, comprise and be used for the device that there is the device of wireless and transfer resource in administrative institute and is used for processing protocol when described radio network controller and another network element transmission data;
At least one wireless disposable plates is used to realize the function of Radio Resource processing subsystem comprise the device that is used to handle wave point related protocol and bottom Frame Protocol;
At least one block of transmission process plate is used to realize transfer of data subsystem bottom host-host protocol function partly, comprises the device that is used for Treated Base host-host protocol when described radio network controller and another network element transmission data; And
At least one power board is connected with each piece plate in described Operation and Maintenance control board, described calling control board, described wireless disposable plates, the described transmission process plate, is used to provide the gigabit Ethernet exchange capacity between each plate that is connected thereto.
According to radio network controller of the present invention, adopted the distributed software structure.By reasonable decomposition, finish functional definition to software module to the communication software demand.By the abundant control module and the support of platform software, realize the reasonable distribution of software resource, and software module reasonably is mapped to the different hardware plate.By coordinating each functional module, make that each functional module can realize effectively cooperating.Compare with the radio network controller of routine, radio network controller of the present invention all has raising on fault-tolerance, stability, reliability and autgmentability.Simultaneously, business load can be on the different hardware plate reasonable distribution, realized load balancing.
After reading the detailed description of embodiment of the present invention in conjunction with the accompanying drawings, other characteristics of the present invention and advantage will become clearer.
Description of drawings
Fig. 1 is the schematic diagram of mobile radio system;
Fig. 2 is the schematic diagram of each functional subsystem in the radio network controller of the present invention;
Fig. 3 is the control board software configuration schematic diagram of radio network controller of the present invention;
Fig. 4 is the wireless disposable plates software configuration schematic diagram of radio network controller of the present invention;
Fig. 5 is the control signaling example schematic between subscriber equipment and the radio network controller of the present invention.
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing.
Fig. 1 is the schematic diagram of mobile radio system.Radio network controller 1041 shown in Figure 1 can be the radio network controller in the universal mobile telecommunications system (UMTS), can be the base station controller subsystem in gsm system, the cdma system, or the radio network controller in other mobile communication system.Radio network controller 1041 can be called base station controller in some mobile communication system.Therefore, the radio network controller among the present invention 1041 has above-mentioned generalized concept.
As the important node in W-CDMA (UMTS FDD) Radio Network System, radio network controller 1041 plays crucial effects, it not only is connected to hundreds of node-bs 1042 same core net 103 (may be a plurality of core net future), and function such as the management of responsible wireless channel and control, soft handover, direct-cut operation.
Because radio network controller 1041 need link to each other with a large amount of node-b 1042, and it is managed and control, and radio network controller 1041 itself also needs to link to each other with adjacent radio network controller (not shown), improving the terminal performance of handoffs of sub-district overlapping coverage area, radio network controller 1041 provides relay capabilities such as a large amount of E1/T1/J1 or STM-1 with needs.It is big that this not only shows as number of connection, but also show as the message transmission rate height.For the needs to a large number of users channel management, radio network controller 1041 also needs the disposal ability that provides very high, mainly shows on Irish capacity, data throughout and the busy hour calling amount indexs such as (BHCA).In addition, as telecommunication system, high availability, high reliability and flexible configuration, extensibility etc. all are the requisite characteristics that radio network controller 1041 should have.
The present invention adopts the distributed software structure.The inventor thinks, reasonably divides the system function module of radio network controller and software entity reasonably is mapped to hardware module, is the principal element that improves systematic function.The function of radio network controller is divided and the software and hardware mapping aspect, the present invention has mainly considered following several principles:
(1) application layer software separates with platform software;
(2) control plane separates with user plane;
(3) public part is separated with private part;
(4) the Operation and Maintenance part is separated with the call control department branch; And
(5) RRM separates with the cable resource management.
State in realization on the basis of principle, considered the globality of software demarcation among the present invention as far as possible, reduce the excessive dispersion of software as far as possible, guarantee the independence of each software module simultaneously.
Considering in addition a bit among the present invention be, can not blindly pursue distributedly, and causes hardware of a great variety, makes software too complicated to the mapping of hardware, and software excessively disperses.
Fig. 2 is the schematic diagram of the functional subsystem of radio network controller of the present invention.The part that frame of broken lines is represented among Fig. 2 is a radio network controller of the present invention.Control subsystem is called out in label 201 expressions, label 202 expression operation and maintenance sub systems, label 203 expression Radio Resource processing subsystems, label 204 expression transmission process subsystems, label 205 is represented other radio network controller (RNC), label 206 expression node-bs, label 207 expression mobile switching centres (MSC), label 208 expression GPRS (GPRS) service support nodes (SGSN), label 209 expression operation maintenance center-wireless (OMC-R).
As shown in Figure 2, radio network controller of the present invention is divided into four functional subsystems, promptly calls out control subsystem 201, operation and maintenance sub system 202, Radio Resource processing subsystem 203 and transmission process subsystem 204.These four sub-system relationship degree are very little, so dividing mode shown in Figure 2 is reasonably, embodied the principle that the Operation and Maintenance part is separated with the call control department branch, RRM separates with the cable resource management.Below the function of each subsystem is done concise and to the point description.
Call out all wireless and transfer resources of control subsystem 201 management, it is responsible for to user resource allocation and is responsible for the use of these resources is managed.Its main service comprises following aspect: the foundation and the release of RRM and control (RRC); Wireless resource allocation and management (RRM); The distribution of wire transmission resource and management etc.
Operation and maintenance sub system 202 main responsible using and controlling to other subsystem resources.Other subsystems all have an interface with operation and maintenance sub system 202.Because operation and maintenance sub system 202 links to each other with OMC-R 209 by public object request broker architecture (CORBA) interface, so operation and maintenance sub system 202 plays the effect of an acting server that is connected with OMC-R 209.CORBA is the requirement of collaborative work ability of the corresponding current software and hardware that increases fast of OMG (OMG) and the scheme that proposes.CORBA allows application program and other application program communication, no matter and they somewhere or by whom design.Operation and maintenance sub system 202 mainly comprises following function: require to carry out associative operation according to control desk; Realization is to each modules configured management work; Mismanage, alarm management, performance report etc.
Radio Resource processing subsystem 203 is responsible for the data processing of wave point, and from the 3GPP protocol stack, wireless network layer user plane part mainly realizes on Radio Resource processing subsystem 203.The main service of Radio Resource processing subsystem 203 comprises following aspect: the processing of radio layer two (RLC, MAC, PDCP and BMC agreement), Frame Protocol and grand diversity (FP agreement, DHO function); Exterior ring power control.
The data of the transmission process subsystem 204 main RNC of being responsible for and other network elements transmit, and from the 3GPP protocol stack, transport network layer is mainly realized in transmission process subsystem 204.The main service of transmission process subsystem 204 comprises following aspect: the realization of atm interface and the distribution of related resource; ATM AAL2/AAL5 is to the conversion of internal communication protocol using (ICP); The realization of SSCF/SSCOP/SCP/MTP3b/SCCP; The IP of Iu-PS interface and udp protocol processing etc.Transmission process subsystem 204 is connected with other network elements such as mobile switching centre 207, GPRS service support node 208, other radio network controllers 205, node-bs 206, realize various corresponding air interfaces, as Iu-CS, Iu-PS, Iub, Iur etc.
To the division of radio network controller system, not considering the division and the mapping of software and hardware too much among Fig. 2, is from cutting apart that function is carried out purely.Below the mapping of function shown in Figure 2 on the hardware platform of radio network controller will be discussed further.
For simplified system hardware kind, only contain five types hardware plate in the radio network controller of the present invention, promptly the Operation and Maintenance control board is called out control board, wireless disposable plates, transmission process plate and power board (referring to Fig. 5).According to system requirements, every type hardware plate can comprise polylith, and can adopt the form of backup.The quantity of every type hardware plate, not structure limitation of the present invention.
The Operation and Maintenance control board is used to realize the function of operation and maintenance sub system, comprises that the resource that is used for other subsystems of radio network controller uses the device of controlling.For the needs of 1+1 backup, in whole radio network controller, two block operations maintenance control panels are arranged, wherein one is that main to use Operation and Maintenance control board, another piece be the standby operation maintenance control panel.
Call out control board, be used for realizing calling out the function of control subsystem and the function of transfer of data subsystem protocol section, comprise and be used for the device that there is the device of wireless and transfer resource in administrative institute and is used for processing protocol when radio network controller and another network element transmission data.For the needs of N+1 backup, in whole radio network controller, the N+1 piece can be set call out control board, wherein the N piece is main with calling out control board, other one is the backup call control board.
Wireless disposable plates is used to realize the function of Radio Resource processing subsystem comprise the device that is used to handle wave point related protocol and bottom Frame Protocol.Needs for the N+1 backup in whole radio network controller, can be provided with the wireless disposable plates of N+1 piece, and wherein the N piece is that the master uses wireless disposable plates, and other one is standby wireless disposable plates.
The transmission process plate is used to realize transfer of data subsystem bottom host-host protocol function partly, comprises the device that is used for Treated Base host-host protocol when radio network controller and another network element transmission data.Owing to need link to each other with a plurality of node-bs (base station), need a lot of bar trunk interface lines (as E1, T1 etc.), so the E1 (maximum 63) of a plurality of low rates is transformed to the STM-1 interface, be connected into the transmission process plate then by multiplexer.Vice versa (using repeatedly).According to the requirement of automatic protection switching (APS), can a standby transmission process plate be set to each piece transmission process plate.With respect to standby transmission process plate, another piece transmission process plate is called the main transmission process plate of using.Like this, according to automatic protection switching (APS) mechanism, provide STM-1 protection by main 1+1 backup structure with transmission process plate and standby transmission process plate.Certain a little (cabinet) requirement must assign in the adjacent integrated circuit board groove position with transmission process plate and corresponding standby transmission process plate main.In whole radio network controller, the transmission process plate of N group 1+1 backup is set, be distributed in the different sub-framves.Among the present invention, this backup setting scheme of transmission process plate is called N * (1+1) backup.
Power board, for the Operation and Maintenance control board, call out control board, wireless disposable plates, transmission process plate and provide gigabit Ethernet to connect, thereby the Operation and Maintenance control board, call out control board, wireless disposable plates, transmission process plate and form a big flexibly capacity ethernet switched network.
Each hardware plate can be separately positioned in the frame and sub-frame of two-layer configuration, thereby forms a kind of dual star topology gigabit Ethernet switching network topology structure.
Among the present invention,, allow software have transplantability, demonstrate fully the principle that software and hardware is isolated, software laterally is divided into applying portion (RCO) and terrace part (PLATFORM) in order to reduce the dependence of software to hardware.Applying portion is mainly realized the function of each protocol entity, realizes the function of RRM and Operation and Maintenance.Terrace part is mainly realized the function such as adaptive of the management of whole radio network controller software and hardware resources and hardware.
Describe the Operation and Maintenance control board below in detail and call out control board.These two kinds of hardware plates also are called control board.From the angle of hardware, control board is divided into the Operation and Maintenance control board and calls out control board.But, angle from software, the Operation and Maintenance control board with call out control board on the identical software of operation, and their software all is to be made of with platform software application software. Operation and Maintenance control board and the difference of calling out control board only are that above-mentioned software is different with the configuration on the calling control board at the Operation and Maintenance control board.Owing to load same software module on two kinds of hardware plates, make that test environment obtains simplifying, expand also being easier to carry out for the configuration of plate.
Below the mapping relations of software function on Operation and Maintenance control board and calling control board are analyzed.
Fig. 3 is the control board software configuration schematic diagram of radio network controller of the present invention.
Applying portion (RCO) 301
(1) applying portion of calling out on the control board mainly activates the correlation function of calling out control subsystem, mainly comprises the function of following entity: NBAP, RANAP, RNSAP, ALCAP, protocol module functions such as RRC.
(2) the correlation function module of the main activation manipulation maintenance subsystem of applying portion on the Operation and Maintenance control board.Mainly comprise: ALCAP (maintenance process), RANAP (maintenance process), NBAP (common signal channel), CORBA, far-end file transfer, Equipment Control and supervision etc.
Terrace part (PLATFORM) 302
Terrace part mainly provides following function:
The realization (SCCP/MTP3b/SSCOP) of transmission upper-layer protocol;
The interface of CORBA and OMC is realized;
The management of the software and hardware of whole radio network controller;
The initialization of whole radio network controller, dispose and reshuffle;
The telecommunication management of file management Ethernet;
The management of software and hardware resources etc.
Above-mentioned functions is at the Operation and Maintenance control board and call out specifically being allocated as follows on the control board.
(1) common platform of Operation and Maintenance control board and calling control board partly comprises following function:
1.RNC platform control and configuration:
The activation of platform initialization and RCO and configuration; The Configuration Online of configuration data and the calculating of related resource etc.After main board is made mistakes, to the auto switching of standby plate.
2. file management
To the visit of fixed disk file, operation, automatic phase device management software report when disk goes wrong.
3. node administration
Main being responsible for to Iub, Iur transmission is connected with Iu interface bottom management and control.
4. platform software internal trace management
The collection of responsible internal trace message and preservation etc.
5. service
Clock management, memory management, functions such as cpu load monitoring.
6. internal communication protocol using (ICP) (function of the transmission process subsystem 204 that sees above)
(2) the terrace part software of Operation and Maintenance control board comprises following function:
1. software administration: version and database configuration to software manage.
2.Bootp service: the software download service is provided.
3. equipment control: collect the state of inner each equipment of report RNC, the detection of the increase and decrease of Device Diagnostic and hardware etc.
4. transmission line management: to the detection management of STM1 wire connection state.Detection that ATM (VP/VC) is connected and management etc.
5.CORBA: realize the control and the management of corba interface.
6.SNMP agency
(3) the terrace part software of calling control board comprises following function:
1. wireless disposable plates resource management: the contextual incidence relation management of the foundation of Radio Resource and release and controlling call entity and RP.
2. transmission process plate AAL2 resource management: contextual foundation of AAL2 and release.
3. path management: each foundation and release of file path up and down of management.
4. transmission line administration agent.
5. equipment control is acted on behalf of.
6.SSCOP: be responsible for SSCOP establishment of connection and release.For a connection, the SSCOP functional entity can be implemented on the calling control board different with the CCF part.That is to say that calling out on the control board for every all has SSCOP, just some SSCOP starts, and some SSCOP does not start.Such purpose mainly is the self-protection of system, and load sharing.
Wireless disposable plates is described below.
Fig. 4 is the wireless disposable plates software configuration schematic diagram of radio network controller of the present invention.As described in Figure 4, wireless disposable plates comprises a wireless disposable plates controller 401 and a plurality of UMTS bottom modules (ULL) 402.Wireless disposable plates controller 401 is used to realize resource allocation and the message route between a plurality of ULL 402, and the Operation and Maintenance relevant with wireless disposable plates.ULL 402 is used to realize the function of UMTS underlying protocol (such as RLC, MAC, FP, GTP-U etc.).
Consider the reliability of system, the function relevant with certain node-b, such as node synchronously and the MAC-C related resource between the different radio disposable plates, share.Like this, after a wireless disposable plates was out of order, other wireless disposable plates can work on, and reduced the influence to business as far as possible.For the business of same subscriber equipment, all related contexts are handled on a wireless disposable plates.ULL 402 on wireless disposable plates realizes same function.
The software of wireless disposable plates controller 401 has following function:
(1) resource allocation of ULL 402, the message route of ULL 402;
(2) operation and maintenance (OAM) agency: wireless disposable plates software initialization, software administration, wireless disposable plates monitoring and tracing management etc.;
(3) basic service: system resource management, intercommunication processing etc.
The software of ULL 402 comprises following function:
(1) ULL platform: the support to wireless disposable plates variety of protocol entity is provided;
(2) each radio protocol entity of applying portion: 3GPP all here realizes, comprising: Iub/Iur Frame Protocol, MAC, RLC, PDCP, GTP-U, UDP/IP etc.
In wireless disposable plates, ULL 402 has comprised integrated package, has just comprised all protocol modules, algorithm, basic-level support etc.In general, on wireless disposable plates, need powerful disposal ability (MIPS).Common way is that the identical processing unit of multi-disc is set, such as 24 DSP or CPU CORE.This is common hardware design methods.Like this, this universal design of ULL is just very important.In addition, the design of ULL 402 itself biconditional operation system independence normally.Like this, ULL402 promptly can move on CPU, also can move on DSP.Having, finished coordination, route, resource allocation of a plurality of ULL 402 etc. by a wireless disposable plates controller 401, is vital.Only in this way, wireless disposable plates just can show as an independent hardware plate, otherwise is exactly 24 small and weak platelets of function (if using 24 DSP), makes the control of whole system and coordination become complicated more.
The transmission process plate is described below.
Used network processing unit on the transmission process plate, so that realize the termination of AAL2 (2 class ATM Adaptation Layer)/AA L5 (5 class ATM Adaptation Layer), so can realize ATM freely switching to IP by software.Therefore, radio network controller of the present invention is " IP is ready ", and the support of subtend IP evolution is provided.
The english abbreviation of mentioning in the specification if unreceipted Chinese implication sees also the relevant specification of 3GPP (third generation partnership projects), is not given unnecessary details at this.
Fig. 5 is the control signaling example (schematic diagram of DCCH → DCH) between subscriber equipment and the radio network controller of the present invention.Fig. 5 shows at least one and calls out control board 502, at least one wireless disposable plates 503, at least one block of transmission process plate 504 and at least one power board 505.These control boards and disposable plates and at least one block operations maintenance control panel (not shown among Fig. 5) have constituted radio network controller of the present invention.The dotted line of band arrow represents that DCCH goes up the transfer path figure that transmits the control signaling among Fig. 5, and IuB represents the interface between radio network controller and the node-b.Node-b and subscriber equipment are not shown in Figure 5.As seen from Figure 5, the control signaling is simply clear and definite in the processing path of radio network controller inside, and it is reasonable, clear that agreement is distributed.The example of Fig. 5 has reflected that the software function of radio network controller reasonably is mapped on the hardware.
Can see from the example of Fig. 5,, in the global design of software configuration, demonstrate fully the characteristics that system disperses and function is concentrated at radio network controller of the present invention.The division clear and rational of software function greatly reduces the complexity and the redundancy of system.The expansion that further expands with message capacity of system also is very easily to future.
Though described embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art can make various distortion or modification within the scope of the appended claims in this area.
Claims (7)
1. radio network controller is characterized in that comprising:
At least one block operations maintenance control panel is used to realize the function of operation and maintenance sub system, comprises that the resource that is used for described other subsystems of radio network controller uses the device of controlling;
Call out control board at least one, be used for realizing calling out the function of control subsystem and the function of transfer of data subsystem protocol section, comprise and be used for the device that there is the device of wireless and transfer resource in administrative institute and is used for processing protocol when described radio network controller and another network element transmission data;
At least one wireless disposable plates is used to realize the function of Radio Resource processing subsystem comprise the device that is used to handle wave point related protocol and bottom Frame Protocol;
At least one block of transmission process plate is used to realize transfer of data subsystem bottom host-host protocol function partly, comprises the device that is used for Treated Base host-host protocol when described radio network controller and another network element transmission data; And
At least one power board, be connected with each the piece plate in described Operation and Maintenance control board, described calling control board, described wireless disposable plates, the described transmission process plate, be used to provide the gigabit Ethernet exchange capacity between each plate that is connected thereto, it is characterized in that described wireless disposable plates comprises:
A plurality of UMTS bottom modules are used to realize the function of UMTS underlying protocol; And
A wireless disposable plates controller is used to realize resource allocation and message route between described a plurality of UMTS bottom module, and with the relevant Operation and Maintenance of described wireless disposable plates.
2. according to the radio network controller of claim 1, it is characterized in that the software that described Operation and Maintenance control board and described calling control board use comprises an applying portion that is used to realize each protocol entity function and realizes RRM and Operation and Maintenance function, and one is used to realize whole software and hardware resources management of described radio network controller and the adaptive terrace part of hardware.
3. according to the radio network controller of claim 1, it is characterized in that the identical software of operation on described Operation and Maintenance control board and the described calling control board, and described software is different with the configuration of described software on described calling control board in the configuration on the described Operation and Maintenance control board.
4. according to the radio network controller of claim 1, it is characterized in that the shared and function that node-b is relevant of a plurality of described wireless disposable plates.
5. according to the radio network controller of claim 4, it is characterized in that the context relevant with the business of same subscriber equipment handle on same described wireless disposable plates.
6. according to the radio network controller of claim 1, it is characterized in that each described UMTS bottom module has an applying portion that is used to realize various radio protocol entity, and a terrace part that is used to described applying portion to provide support.
7. according to the radio network controller of claim 1, it is characterized in that the described device that is used for the Treated Base host-host protocol of described transmission process plate comprises the device that is used to realize the AAL2/AAL5 termination.
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| CNB2003101226045A CN100433605C (en) | 2003-12-22 | 2003-12-22 | Wireless network controller in CDMA system |
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| CNB2003101226045A CN100433605C (en) | 2003-12-22 | 2003-12-22 | Wireless network controller in CDMA system |
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| CN100474959C (en) * | 2005-06-30 | 2009-04-01 | 上海华为技术有限公司 | Base band device for wideband code division multiple access mobile communication system base station |
| CN101132558B (en) * | 2007-09-19 | 2012-04-04 | 华为技术有限公司 | Method, system and RNC for implementing business function in shared wireless access network |
| CN106804054B (en) * | 2015-11-26 | 2020-11-20 | 中兴通讯股份有限公司 | Method and device for sharing transmission resources by access network of virtualized base station |
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| WO1999055095A2 (en) * | 1998-04-23 | 1999-10-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Bearer independent signaling protocol |
| CN1245374A (en) * | 1998-08-17 | 2000-02-23 | Lg情报通信株式会社 | Network interface card controllerand controlling method thereof |
| CN1422484A (en) * | 2000-02-08 | 2003-06-04 | 艾利森电话股份有限公司 | Using Internet protocol (IP) in radio access network |
| CN1788503A (en) * | 2003-07-16 | 2006-06-14 | Ut斯达康(中国)有限公司 | Distributed type radio network controller based on IP exchanging |
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