CN100555920C - Controlled in wireless processor and RNS - Google Patents
Controlled in wireless processor and RNS Download PDFInfo
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- CN100555920C CN100555920C CNB2003101045317A CN200310104531A CN100555920C CN 100555920 C CN100555920 C CN 100555920C CN B2003101045317 A CNB2003101045317 A CN B2003101045317A CN 200310104531 A CN200310104531 A CN 200310104531A CN 100555920 C CN100555920 C CN 100555920C
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Abstract
The present invention relates to code division multiple address communication system, a kind of controlled in wireless processor, wireless transmitting station and RNS are disclosed, make the total cost of RNS significantly reduce, the base station equipment volume significantly reduces, and can reduce signaling traffic load, the raising business is set up efficient.This RNS comprises wireless controller and wireless transmitting station, and wherein, the controlled in wireless processor comprises interconnective radio network controller and baseband processing unit; Radio network controller is used to distribute and is attached thereto with control or the Radio Resource of relevant baseband processing module; Baseband processing module is used for baseband signal is handled; Wireless transmitting station comprises interconnective intermediate frequency process module and radio frequency processing module; Baseband processing module is connected with the intermediate frequency process module.
Description
Technical field
The present invention relates to code division multiple address communication system, particularly adopt the universal mobile telecommunications system of the air interface technologies of Wideband Code Division Multiple Access (WCDMA) communication system.
Background technology
Along with the fast development of whole world science and technology, two epoch have been experienced in the development of mobile communication technology: analog voice mobile communication system and digital communication system, all there is certain limitation in these two kinds of communication technologys.
The main deficiency of analog mobile communication system is finite capacity, automatic roaming can not be provided, confidentiality is poor, speech quality is not good and data service etc. can not be provided.
And for digital mobile communication system, though overcome the above-mentioned weakness of simulation mobile communication, speech quality, security performance obtain big raising, and can carry out inside the province, inter-provincial automatic roaming.But owing to limited bandwidth, limited the application of data service, and can't realize the multimedia service of business as moving of two-forty.In addition, because various countries' digital mobile communication standard disunity, thereby can't carry out global roaming.GSM mobile handset user such as China arrives U.S.'s whilst on tour, and mobile phone just can't use.
3-G (Generation Three mobile communication system) has appearred in the deficiency at above two kinds of communication systems, and it provides the next-generation mobile communications of wideband multimedia service covering the whole world.Its main feature is to realize global roaming, makes the seamless interchange between random time, anywhere, any people become possibility.Its another main feature is to realize high speed data transfer and wideband multimedia service.Specifically, by the mobile phone of 3-G (Generation Three mobile communication system), except can carry out common paging and the conversation, can also surf the Net read the newspaper paper, look into information, file in download and picture; Because the raising of bandwidth, all right images of 3-G (Generation Three mobile communication system) provides visual telephone service.
In 3-G (Generation Three mobile communication system), what comparatively attract people's attention at present is to adopt Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, abbreviation " WCDMA ") universal mobile telecommunications system of communication system air interface technologies (Universal Mobile TelecommunicationsSystem is called for short " UMTS ").
As shown in Figure 1, a complete UMTS system 1 is by subscriber equipment (User Equipment, be called for short " UE ") 10, universal mobile telecommunications system grounding wireless access network (UMTS Terrestrial RadioAccess Network, be called for short " UTRAN ") 20 and core net (Core Net, abbreviation " CN ") 30 constitute, and communicate by letter with external network 40 by CN30.
UE10 is used for carrying out data interaction with UTRAN20, for the user provides the function of the miscellaneous service in circuit domain and the packet domain, comprise common speech, data communication and mobile multimedia, in addition, also provide such as E-mail, WWW browse and FTP Internet use.
On structure, UE10 mainly comprises RF processing unit, baseband processing module, protocol stack module and application layer software module etc.
CN30 is used to handle that all voice calls in the UMTS system 1 are connected with data and the exchange and the route of external network.It mainly comprises following functional entity:
Mobile services switching centre (Mobile services Switching Center, be called for short " MSC ")/VLR Visitor Location Register (Visitor Location Register, be called for short " VLR "): major function provides the calling in circuit switching (Circuit Switching is called for short " CS ") territory and controls functions such as mobile management authentication and encryption; GMSC (gateway mobile switching center) (Gateway Mobileservices SwitchingCentre, be called for short " GMSC "): major function is the mobile gateway office of serving as between mobile network and the fixed network, finish public switched telephone network (Public Switched Telephone Network, be called for short " PSTN ") routing function of incoming call when the user exhales the mobile subscriber, bear between route analysis, net continue, critical function such as inter-network settlement; GPRS serving GPRS support node (Serving GPRSSupport Node, be called for short " SGSN "): major function provides the functions such as routing forwarding, mobile management, session management, authentication and encryption in packet switching (Packet Switching is called for short " PS ") territory; Gateway GPRS supporting node (GGSN) (GPRS Gateway Support Node, be called for short " GGSN "): major function provides route and the encapsulation of packet between WCDMA mobile network and external data network, and with (the Internet Protocol of interconnection protocol between extranets, abbreviation " IP ") interface function of packet network needs to provide UE to insert the critical point function of extenal grouped network in addition; Attaching position register (Home Location Register, be called for short " HLR "): major function provides that user's CAMEL-Subscription-Information is deposited, the functions such as authentication of new business support, enhancing.
UTRAN20 is used to handle all and wireless function associated.For example: and overall system access control function associated, comprise access control, congested control and system information broadcast.With safety and private ownership function associated, comprise wireless channel encrypt/decrypt and message integrity protection.With the mobility function associated, comprise and switching and service wireless network controller (Serving Radio Network Controller is called for short " SRNC ") migration.With RRM and control function associated, comprise that radio-resource-configuration is connected distribution and recovery, dynamic channel allocation DCA (TDD), wireless protocols function, radio-frequency power control and the radio-frequency power setting of setting up and discharging (RB control), radio bearer with operation, wireless environment exploration, grand diversity control (FDD), radio bearer.
In addition, the function of UTRAN20 also comprises the CN distribution function of Timing Advance setting (TDD), wireless channel coding, wireless channel decoding, chnnel coding control, initial (at random) access detection and processing and Non-Access Stratum (Non Access Stratum is called for short " NAS ") message.
As shown in Figure 2, UTRAN20 comprises one or several RNS (Radio NetworkSubsystem is called for short " RNS ") 21.Wherein, a RNS21 was made up of a radio network controller (Radio Network Controller is called for short " RNC ") 25 and one or more base station (NodeB) 28.
In the prior art, as shown in Figure 2, be connected by the Iu interface between RNC25 and the CN30; Connect by Iub interface between NodeB28 and the RNC25; In UTRAN20 inside, connect by the Iur interface between the RNC25, wherein, the Iur interface can connect by the connection of the direct physical between the RNC25 or by transmission network to be realized.
With reference to Fig. 1, UE10 is connected with NodeB28 specifically by Uu interface and UTRAN20 in addition.
In above-mentioned UTRAN20, RNC25 is used to control the Radio Resource of UTRAN20, promptly distributes to be attached thereto with control or the Radio Resource of relevant NodeB28.Specifically, mainly finish functions such as connection foundation and disconnection, switching, the merging of grand diversity, RRM control.Specifically comprise: RRM and controlled function such as mobile management function such as executive system information broadcast and system's access control function, switching and RNC migration and the merging of grand diversity, power control, radio bearer distribution.
NodeB28 is used to finish the conversion of the data flow between Iub interface and the Uu interface (referring to Fig. 1 and Fig. 2), also participates in a part of RRM simultaneously.
Specifically, NodeB28 is by the Iub interface and the RNC25 interconnection of standard, finish the processing of Uu interface physical layer protocol, 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.
In order to realize above-mentioned functions, as shown in Figure 3, NodeB28 mainly is made of logic function modules such as Base-Band Processing (BB) module 51, intermediate frequency process (IF) module 52 and radio frequency processing (RF) modules 53.
Wherein, BB module 51 is used for baseband signal is handled.Specifically, up functions such as demodulation, decoding processing, the descending functions such as chnnel coding, forward direction modulation, power control of finishing finished.
RF module 53 is used for when up radiofrequency signal being demodulated to intermediate-freuqncy signal, when descending intermediate-freuqncy signal is modulated to radiofrequency signal.
In actual applications, there is following problem in such scheme: the cost height.The processing of NodeB is comparatively complicated, realizes that cost is higher.Especially the BB module 51, are complexity maximums in three main modular among Fig. 3, and cost is the highest, and it has almost taken half of manufacturing cost of NodeB.And on the other hand, in the RNS21 of UTRAN20, be the structure that a RNC25 connects a plurality of NodeB28, and each NodeB28 needs a BB module 51, and this causes the manufacturing cost of whole RNS21 and even whole UTRAN20 very high.
Signaling traffic load is heavier.Because the device resource that is used for Base-Band Processing in NodeB28 inside, needs RNC and NodeB to consult base-band resource.In the RNS21 of UTRAN20, be the structure that a RNC25 connects a plurality of NodeB as mentioned above, so it is more to be used to consult the signaling of base-band resource among RNC and the NodeB, signaling traffic load is heavier thus, and it is lower that business is set up efficient.
The volume of NodeB28 is big.Main cause is that the processing of NodeB28 is very complicated, is difficult to its miniaturization.And operator considers that the place of placing NodeB28 is with high costs, wish that reducing volume cuts operating costs, but the design of present NodeB obviously can't be satisfied these needs of operator.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of controlled in wireless processor, wireless transmitting station and RNS, make the total cost of RNS significantly reduce, the base station equipment volume significantly reduces, and can reduce signaling traffic load, the raising business is set up efficient.
In order to solve the problems of the technologies described above, the invention provides a kind of controlled in wireless processor, comprise interconnective wireless network control module and baseband processing module, wherein,
Described wireless network control module is used to distribute and control the Radio Resource of the baseband processing module that is attached thereto; Described distribution is to be connected to set up and disconnection or switching or merging of grand diversity or RRM control with the Radio Resource of the baseband processing module that control is attached thereto;
Described baseband processing module is used for baseband signal is handled; Described baseband signal is handled is uplink demodulation or upward row decoding processing or down channel coding or modulation of descending forward direction or descending power control.
The present invention also provides a kind of RNS, comprises a controlled in wireless processor and at least one wireless transmitting station, wherein,
Described controlled in wireless processor comprises interconnective wireless network control module and baseband processing module;
Described wireless network control module is used to distribute and control the Radio Resource of the baseband processing module that is attached thereto; Described distribution is to be connected to set up and disconnection or switching or merging of grand diversity or RRM control with the Radio Resource of the baseband processing module that control is attached thereto;
Described baseband processing module is used for baseband signal is handled; Described baseband signal is handled is uplink demodulation or upward row decoding processing or down channel coding or modulation of descending forward direction or descending power control;
Described wireless transmitting station comprises interconnective intermediate frequency process module and radio frequency processing module, wherein,
Described intermediate frequency process module is used for when up intermediate-freuqncy signal being demodulated to baseband signal, when descending baseband signal is modulated to intermediate-freuqncy signal;
Described radio frequency processing module is used for when up radiofrequency signal being demodulated to intermediate-freuqncy signal, when descending intermediate-freuqncy signal is modulated to radiofrequency signal;
Described intermediate frequency process module in each described wireless transmitting station all is connected with described baseband processing module.
Wherein, the interface between the radio network controller of the agreement defined by third generation partner program communicates between the different described controlled in wireless processor.
The radio network controller of the agreement defined by third generation partner program between described controlled in wireless processor and the core net and the interface between the core net communicate.
The unified baseband signal of handling each described wireless transmitting station transmitting-receiving in the described RNS of described baseband processing module in the described controlled in wireless processor.
By relatively finding, technical scheme difference with the prior art of the present invention is, changed the mode that present each NodeB is equipped with a BB module, the function of BB module is transferred to realization in the controlled in wireless processor (Radio Control and Handling Equipment is called for short " RCHE ").Thus, for a RNS, only need a BB module to get final product.Because the cost of original BB module accounts for about half of NodeB cost, therefore, can significantly reduce the total cost of RNS by reducing the quantity of BB module.
In addition, because the present invention's change structurally, resource is handled and is concentrated among the RCHE, so the negotiation signaling of RCHE and RTS can reduce greatly, and promptly the message traffic of wireless access network internal node can reduce greatly.Therefore reduced signaling traffic load, improved business and set up efficient.
Once more,, lacked the BB module, therefore reduced the volume of NodeB equipment greatly because wireless transmitting station of the present invention (Radio Transceiver is called for short " RTS ") is compared with NodeB of the prior art.
Description of drawings
Fig. 1 is the schematic network structure of 3-G (Generation Three mobile communication system);
Fig. 2 is the structural representation of UTRAN in the prior art;
Fig. 3 is a NodeB structural representation in the prior art;
Fig. 4 is the structural representation of UTRAN according to an embodiment of the invention;
Fig. 5 is RCHE according to an embodiment of the invention and RTS structural representation.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 4, in the UMTS system, CN30 is connected by the Iu interface with UTRAN60, and wherein the Iu interface of Iu interface and third generation partner program (3rd Generation Partnership Project is called for short " 3GPP ") agreement regulation is identical.
In UTRAN60, comprise several RNS61, connect by the Iur interface between each RNS61, wherein the Iur interface is identical with the Iur interface of 3GPP agreement regulation.The Iur interface can connect by the connection of the direct physical between the RCHE65 among the RNS61 or by transmission network physically to be realized.
In each RNS61, comprise a RCHE65 and several RTS68, each RTS68 is connected with RCHE65 by the Iut interface.Need to prove that the Iut interface is the interface of redetermination of the present invention, different with the Iub interface of 3GPP agreement regulation.
RCHE65 is used to distribute and is attached thereto with control or the Radio Resource of relevant TRS68, promptly connects foundation and disconnection, switching, the merging of grand diversity, RRM control etc.Specifically comprise RRM and controlled function such as mobile management functions such as executive system information broadcast and system's access control function, switching and RTS68 migration and the merging of grand diversity, power control, radio bearer distribution.Need to prove that above-mentioned these functions are identical with the function of original RNC25.
In addition, the RCHE65 among the present invention also is responsible for the processing of base band data.Be up functions such as demodulation, decoding processing, the descending functions such as chnnel coding, forward direction modulation, power control of finishing finished.
This shows how the difference among RCHE65 of the present invention and Fig. 2 and Fig. 3 between the RNC25 of prior art has been the processing capacity of a base band data.Being actually the function that the BB module among original NodeB28 51 is needed to realize transfers among the RCHE65 among the present invention.
Therefore as shown in Figure 5, structurally, RCHE65 of the present invention comprises original RNC25 and the BB module 51 among the NodeB28, and these two modules interconnect.
RTS68 is used for RCHE65 sent to its baseband signal and carries out intermediate frequency, radio frequency processing, and communicates by wave point and UE.
As shown in Figure 5, comprise interconnective IF module 52 and RF module 53 among the RTS68, originally the BB module 51 in NodeB28 is transferred among the RCHE65.Need to prove, the IF module 52 among the RTS68 and IF module 52 among RF module 53 and the NodeB28 and RF module 53, identical on function and structure.RF module 53 communicates by transmitting antenna and UE.IF module 52 is connected with BB module 51 among the RCHE65 by the Iut interface.
In the present invention, because BB module 51 has been transferred among the RCHE65, therefore can in whole RNS61 scope, share the baseband processing resource of BB module 51, reduced the quantity of the higher BB module 51 of cost, so for wireless access network, total cost can reduce greatly.
In addition, because Base-Band Processing concentrates on RCHE65, the negotiation signaling between RCHE65 and the RTS68 can significantly reduce, and promptly the message traffic of wireless access network internal node can reduce greatly, thereby reduces signaling traffic load, and the raising business is set up efficient.
The function of RTS68 is simplified for NodeB to some extent, so volume will more be easy to do lessly, satisfies the demand of operator.
Though by reference some preferred embodiment of the present invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that, can do various changes to it in the form and details, and the spirit and scope of the present invention that do not depart from appended claims and limited.
Claims (5)
1. a controlled in wireless processor is characterized in that, comprises interconnective wireless network control module and baseband processing module, wherein,
Described wireless network control module is used to distribute and control the Radio Resource of the baseband processing module that is attached thereto; Described distribution is to be connected to set up and disconnection or switching or merging of grand diversity or RRM control with the Radio Resource of the baseband processing module that control is attached thereto;
Described baseband processing module is used for baseband signal is handled; Described baseband signal is handled is uplink demodulation or upward row decoding processing or down channel coding or modulation of descending forward direction or descending power control.
2. a RNS is characterized in that, comprises a controlled in wireless processor and at least one wireless transmitting station, wherein,
Described controlled in wireless processor comprises interconnective wireless network control module and baseband processing module;
Described wireless network control module is used to distribute and control the Radio Resource of the baseband processing module that is attached thereto; Described distribution is to be connected to set up and disconnection or switching or merging of grand diversity or RRM control with the Radio Resource of the baseband processing module that control is attached thereto;
Described baseband processing module is used for baseband signal is handled; Described baseband signal is handled is uplink demodulation or upward row decoding processing or down channel coding or modulation of descending forward direction or descending power control;
Described wireless transmitting station comprises interconnective intermediate frequency process module and radio frequency processing module, wherein,
Described intermediate frequency process module is used for when up intermediate-freuqncy signal being demodulated to baseband signal, when descending baseband signal is modulated to intermediate-freuqncy signal;
Described radio frequency processing module is used for when up radiofrequency signal being demodulated to intermediate-freuqncy signal, when descending intermediate-freuqncy signal is modulated to radiofrequency signal;
Described intermediate frequency process module in each described wireless transmitting station all is connected with described baseband processing module.
3. RNS according to claim 2 is characterized in that, the interface between the radio network controller of the agreement defined by third generation partner program between the different described controlled in wireless processors communicates.
4. RNS according to claim 2 is characterized in that, the radio network controller of the agreement defined by third generation partner program between described controlled in wireless processor and the core net and the interface between the core net communicate.
5. RNS according to claim 2 is characterized in that, the unified baseband signal of handling each described wireless transmitting station transmitting-receiving in the described RNS of the described baseband processing module in the described controlled in wireless processor.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2003101045317A CN100555920C (en) | 2003-10-16 | 2003-10-16 | Controlled in wireless processor and RNS |
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| CNB2003101045317A CN100555920C (en) | 2003-10-16 | 2003-10-16 | Controlled in wireless processor and RNS |
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| CN1607755A CN1607755A (en) | 2005-04-20 |
| CN100555920C true CN100555920C (en) | 2009-10-28 |
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| CN103229548B (en) * | 2012-11-23 | 2016-11-16 | 华为技术有限公司 | Communication means, subscriber equipment and SRC |
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Non-Patent Citations (6)
| Title |
|---|
| 一种新型WCDMA基站－－软基站. 马昕，郭伟.辽宁大学学报自然科学版，第30卷第3期. 2003 |
| 一种新型WCDMA基站——软基站. 马昕，郭伟.辽宁大学学报自然科学版，第30卷第3期. 2003 * |
| 中兴WCDMA系列化基站. 张军，王晓东，田丹.电信科学，第2002年第9期. 2002 |
| 中兴WCDMA系列化基站. 张军，王晓东，田丹.电信科学，第2002年第9期. 2002 * |
| 第三代移动通信系统－－WCDMA的技术特点. 马章勇，华惊宇.江苏通信技术，第19卷第4期. 2003 |
| 第三代移动通信系统——WCDMA的技术特点. 马章勇，华惊宇.江苏通信技术，第19卷第4期. 2003 * |
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