CN100466802C - WCDMA and TD-SCDMA mixed network service bearing and distributing method - Google Patents
WCDMA and TD-SCDMA mixed network service bearing and distributing method Download PDFInfo
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- CN100466802C CN100466802C CNB2005100768040A CN200410098595A CN100466802C CN 100466802 C CN100466802 C CN 100466802C CN B2005100768040 A CNB2005100768040 A CN B2005100768040A CN 200410098595 A CN200410098595 A CN 200410098595A CN 100466802 C CN100466802 C CN 100466802C
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Abstract
The invention discloses an allocation method for business load in mixed network of WCDMA and TD-SCDMA, which comprises: user device initiates communication business access request by base station; the wireless network controller determines the type of access base station according to required business type and network resource condition and whether accorded with said bearing access base station; if yes, notifies user access success, the latter completes communication business; or else, notifies user device to bear the base station by it self and bearing access base station to bear user device business, and the user device also completes communication business. This invention increases bandwidth utility of mixed network.
Description
Technical field
The present invention relates to the mixed networking of different 3G standards, relate in particular to the service bearer distribution method in WCDMA and the TD-SCDMA hybrid network.
Background technology
In the 3G (Third Generation) Moblie epoch, one has three kinds of international standard: WCDMA (Wide-band CodeDivision Multiple Access, Wideband Code Division Multiple Access (WCDMA) inserts), CDMA2000 (Code DivisionMultiple Access 2000, code division multiple access inserts 2,000) and TD-SCDMA (Time DivisionSynchronous Code Division Multiple Access, TD SDMA), wherein WCDMA inherits GSM (Global System for Mobile Communication, global system for mobile communications) development, CDMA2000 is the development of inheriting CDMA IS-95, TD-SCDMA is the 3G standard that domestic CWTS (China Wireless Telecommunication Standard Group, China Wireless Telecommunication Standar seminar) proposes.WCDMA and CDMA2000 are FDD (Frequency DivisionDuplex, Frequency Division Duplexing (FDD)) pattern, and TD-SCDMA is TDD (Time Division Duplex, a time division duplex) pattern.WCDMA and TD-SCDMA standard are formulated by 3GPP, and the CDMA2000 standard is formulated by 3GPP2.
Mobile operator selects these 3 kinds of international technical standards to come networking according to demand separately, and the WCDMA standard has been selected by the operator of most of country in the world, adopts the operator of CDMA IS-95 standard networking to select CDMA2000 before the part.The TD-SCDMA system is also informal commercial at present.From now on when selecting the networking of 3G standard, the method for selecting WCDMA and TD-SCDMA to mutually combine can appear in mobile operator.
WCDMA and TD-SCDMA standard are all 3GPP International Standards Organization and formulate, and the class of business of support is identical, comprises basic audio business, supplementary service and several data business; But WCDMA adopts the FDD technology, and TD-SCDMA adopts the TDD technology.In the extensive commercial epoch of the 3G in future, after operator adopts WCDMA and two kinds of standard mixed networking of TD-SCDMA, because WCDMA realizes that with TD-SCDMA professional technical method is different, distribution service on these two kinds of standards how, the technical characterstic of two kinds of standards is not fully exerted, and still can realize the support of QoS (Quality of Service, service quality) is just become the present scheme that does not still address this problem of the problem that needs solution
Summary of the invention
The technical problem to be solved in the present invention provides in the 3G mobile communications network of a kind of WCDMA of being applied to and TD-SCDMA mixed networking, the method of distribution service carrying on these two kinds of standards, make the advantage of each standard obtain performance, and overcome separately shortcoming, improve the utilization ratio of hybrid network bearer service bandwidth; Can realize simultaneously support to QoS
The invention provides the distribution method of service bearer in a kind of WCDMA and the TD-SCDMA hybrid network, may further comprise the steps:
A) subscriber equipment is initiated communication service by the base station and is inserted request;
B) the shared radio network controller of described WCDMA and TD-SCDMA hybrid network is according to the type of service of described access request and the type of network resource status decision carrying access base station, if the type of service of described request is the up-downgoing asymmetric traffic, make decision by the base station carrying access of TD-SCDMA in the condition that network resource status allows;
C) whether the described radio network controller type of judging described carrying access base station is identical with the type that inserts the request base station, if identical then notify described subscriber equipment to insert successfully, the commentaries on classics step e); If carrying access base station different then that notify described subscriber equipment to bear its business changes step d);
D) described radio network controller notice carrying access base station is born the business of this subscriber equipment;
E) described subscriber equipment is finished communication service by the carrying access base station
Preferably, step b) is made decision by the base station carrying access of WCDMA if the type of service of described request comprises the condition that the up-downgoing symmetrical service allows at network resource status
Preferably, the described communication service of step a) can be the business with service quality QoS requirements that comprises the multiple business type;
When the business that inserts request is when having service quality QoS requirements professional, step b) is described to determine the type of carrying access base station to be specially according to inserting the type of service and the network resource status of asking: if comprise downloading business or Streaming Media class business in the described multiple business type, make decision by BTS carrying access in the condition that network resource status allows; Otherwise make decision by Node B carrying access in the condition that network resource status allows.
Preferably, the described up-downgoing symmetrical service of step b) comprises speech business low speed data class business or interaction service; Up-downgoing is not to becoming business to comprise downloading business or Streaming Media class business
Described subscriber equipment is supported WCDMA and two kinds of mode of operations of TD-SCDMA
Preferably, described step d) and e) between comprise: described subscriber equipment switching working mode
Preferably, described step e) is specially:
E1) carry out resource allocation between described radio network controller and described access base station of described access base station and the described subscriber equipment;
E2) described subscriber equipment communicates business;
E3) sign off discharges resource.
Preferably, the described notifying user equipment of step c) is born the carrying access base station of its business, is realized by down channel by radio network controller
The present invention by according to the type of service of user equipment requests with this traffic assignments on the standard of carrying preferably, obtained following technique effect: can either utilize of the support of WCDMA standard to high-speed mobile, can bring into play the good disposal ability of TD-SCDMA standard again to the data business, and can make full use of the efficient of WCDMA equipment and TD-SCDMA equipment, improve the availability of frequency spectrum and whole networks efficiency; Guarantee the service quality QoS of 3G business simultaneously.
Description of drawings
Figure 1 shows that and use mixed networking environment of the present invention;
Figure 2 shows that the flow chart of the method for the invention;
Figure 3 shows that application example one of the present invention;
Figure 4 shows that application example two of the present invention.
Embodiment
The present invention is applied to WCDMA shown in Figure 1 and TD-SCDMA mixed networking environment.Referring to Fig. 1, in the networking of two kinds of standards, device service GPRS Support Node (the SGSN of core network packet domain, Serving GPRS Support Node) and Gateway GPRS Support Node (GGSN, GatewayGPRS Support Node) 160, the equipment mobile switching centre of core network circuit domain (MSC, MobileSwitching Center) 150, the equipment wireless network controller of Access Network (RNC, Radio NetworkController) 140 is all shared by these two kinds of standards.And the difference part of two kinds of standards is to adopt different base station equipments, and the WCDMA standard adopts Node B (Node B) base station 130, and the base station of TD-SCDMA standard is a base station transceiver (BTS, Base Transceiver Station) 120.Subscriber equipment (UE, User Equipment) 111,112 and 113 is a dual-mode terminal, supports WCDMA and two kinds of standards of TD-SCDMA.
WCDMA has different technical characterstics with TD-SCDMA:
The technology of WCDMA adopts FDD, the wireless frequency spectrum of paired 5Mhz bandwidth is adopted in up-downgoing, and the key technical indexes is to support the business of up-downgoing symmetry, can support the wireless transmission under the high-speed moving state, 384kbps can be reached when mobile at a slow speed, 2Mbps can be reached during indoor walking about; The transfer of data of the multiple speed of simultaneous adaptation can provide multiple business neatly, and distributes different resources according to different quality of services with service rate.
It is the wireless frequency spectrum of 1.23MHz that TD-SCDMA adopts bandwidth, up-downgoing is by a shared frequency range of time-division, adopt intelligent antenna technology to improve spectrum efficiency, the employing CDMA technological reduces the interference between up user and keeps time slot width, adopt associated detection technique to reduce multiple access and disturb, Receiver And Transmitter adopts software and radio technique; Have up-downgoing dissymmetrical channel distribution capability, more adapt to data service.
The networking mode that the WCDMA technical characterstic is fit to is extensive covering, realizes seamless covering networking fast, and it is fit to macrocellular, microcellulor networking to the strong characteristics of mobility tenability.And the networking mode that the technical characterstic of TD-SCDMA is fit to is the microcellulor networking in the area of densely populated and wireless high-speed data dense traffic, and TD-SCDMA only is fit to microcellulor, support to high-speed mobile is poor, but TD-SCDMA is applicable to asymmetric business, its up-downgoing resource can flexible allocation, therefore more be applicable to Internet, multimedia application and file transfer business.
The 3G type of service mainly contains speech business, CS64kbps (CS:Circuit Switched Domain, circuit commutative field) data service, PS64kbps (PS:Package Switched Domain, packet-switched domain) data service, PS128kbps data service, PS384kbps data service.The data service of communication user simultaneously generally will be considered uplink and downlink.The up-downgoing business can be identical, also can be different.So typical business configuration has: ascending voice/downlink voice, the descending CS64kbps of up CS64kbps/, the descending PS64kbps of up PS64kbps/, the descending PS128kbps of up PS64kbps/, the descending PS384kbps of up PS64kbps/.
Consider above factor, between subscriber equipment and wireless network, set up when communicating by letter, speech business should be distributed in as much as possible WCDMA base station node B and go up realization, not only because speech business is the business of up-downgoing symmetry, and when user's high-speed mobile, what more likely initiate is speech business but not data service can be brought into play WCDMA has good disposal ability to high-speed mobile characteristics like this.
To the data business, because the upstream bandwidth of user's request is often smaller, when the user carries out low-speed data service and interactive class data service, can apply for the data service of up-downgoing symmetry usually, the base station node B that it should be distributed in as much as possible WCDMA goes up and realizes; Up-downgoing is asymmetric, the business application of descending big bandwidth and the user who uses download class data service and the data service of Streaming Media class is more prone to propose, it should be realized by the TD-SCDMA base station BTS as much as possible, so that utilize right professional support, the bandwidth of saving communication system of claiming of TD-SCDMA.
Between subscriber equipment and network, set up when communicating by letter, among the present invention by radio network controller (RNC) according to the type of service request difference of initiating between user equipment (UE) and the core net, symmetrical service by WCDMA base station node B carrying, is carried asymmetric traffic by the TD-SCDMA base station BTS.
When comprising the multiple business type in the business that subscriber equipment is initiated, in order to satisfy its qos requirement, when the request that radio network controller is initiated this subscriber equipment distributes RAB, it can not be cut apart to carry by two class base stations according to type of service, and can only realize by a kind of base station type.In this case, if this business comprises downloading business or Streaming Media class business, under the situation that Internet resources allow, it is distributed on the TD-SCDMA network; If this business does not comprise downloading business or Streaming Media class business, for example is low-speed data service or interaction service, under the situation that Internet resources allow, it is distributed on the WCDMA network.
Figure 2 shows that the flow chart of service bearer distribution method of the present invention.The subscriber equipment of Ying Yonging is a dual-mode terminal in the present invention, both may be undertaken by BTS by the service request that subscriber equipment is initiated, and also may be undertaken by Node B.Should be assigned to the access service on the TD-SCDMA network and should be assigned to access service on the WCDMA network by Node B request by BTS request, the traffic assignments flow process of being carried out is substantially the same.Below being that example is illustrated (seeing also Fig. 2) by the speech business of Node B base station requests:
A1. subscriber equipment inserts at random by Node B base station and initiates to insert request, and the type of service of request is ascending voice/downlink voice (step S10);
A2. radio network controller is received the access request of subscriber equipment, inserts the type of request according to this, under the situation that the WCDMA network resource status allows, determines this access request by Node B base station carrying (step S20);
A3. radio network controller is judged the base station of the request of initiation and the base station type identical (step S30) of decision carrying;
A4. radio network controller notifies this subscriber equipment to insert successfully (step S40) according to the access request of this subscriber equipment by down channel;
A5. carry out the resource allocation (step S80) between radio network controller and Node B, Node B and this subscriber equipment;
A6. realize communication process (step S90) between this subscriber equipment and the network;
A7. sign off discharges resource (step S100).
Should be assigned to the access service on the WCDMA network and should be assigned to access service on the TD-SCDMA network by Node B request by BTS request, the traffic assignments flow process of being carried out is also identical basically.With the difference of above-mentioned flow process mainly is that the common signal channel of access and the Traffic Channel of distribution are in the different base stations.Be example explanation (seeing also Fig. 2) to ask the descending PS128kbps data service of up PS64kbps/ by Node B below:
B1. subscriber equipment inserts at random by Node B base station and initiates to insert request, and the type of service of request is the descending PS128kbps data service of up PS64kbps/ (step S10);
B2. radio network controller is received the access request of subscriber equipment, inserts the type of request according to this, under the situation that the TD-SCDMA network resource status allows, determines this access request by BTS base station carrying (step S20);
B3. radio network controller is judged the base station of the request of initiation and the base station type different (step S30) of decision carrying;
B4. radio network controller notifies this subscriber equipment to realize service bearer (step S50) according to the access request of this subscriber equipment on BTS by down channel;
B5. radio network controller notice BTS bears service bearer (step S60);
B6. this subscriber equipment switches to TD-SCDMA pattern (step S70); To the subscriber equipment of supporting that WCDMA and TD-SCDMA standard are simultaneously online, this step can be omitted;
B7. carry out the resource allocation (step S80) between radio network controller and BTS, BTS and this subscriber equipment;
B8. realize communication process (step S90) between this subscriber equipment and the network;
B9. sign off discharges resource (step S100).
Among the present invention, radio network controller (RNC) is when the carrying of control base station, when the service request of subscriber equipment is ascending voice/downlink voice, the descending CS64kbps of up CS64kbps/, the descending PS64kbps of up PS64kbps/, under the condition that network resource status allows, be distributed in as far as possible on the WCDMA base station node B and realize RAB; Service request for subscriber equipment is the descending PS128kbps of up PS64kbps/, the descending PS384kbps of up PS64kbps/, realizes RAB as far as possible on the TD-SCDMA base station BTS under the condition that network resource status allows.
Below illustrate application of the present invention.
As shown in Figure 3, the service request of subscriber equipment 311 is the descending PS128kbps of up PS64kbps/, the service request of subscriber equipment 312 is ascending voice/downlink voices, the service request of subscriber equipment 313 is the descending PS64kbps of up PS64kbps/, on base station transceiver 320 and the Node B 330 enough idle bandwidths are arranged, then radio network controller 340 on base station transceiver 320, is realized with the traffic assignments of subscriber equipment 312, subscriber equipment 313 traffic assignments of subscriber equipment 311 on Node B 330.
Among Fig. 4, the service request of subscriber equipment 411 is the descending PS128kbps of up PS64kbps/, the service request of subscriber equipment 412 is ascending voice/downlink voices, the service request of subscriber equipment 413 is the descending PS64kbps of up PS64kbps/, remaining bandwidth on the base station transceiver 420 can't carry the business of subscriber equipment 411, and still have enough idle bandwidths on the Node B 430, then radio network controller 440 all is distributed in carrying on the NodeB 430 with the business of subscriber equipment 411, subscriber equipment 412, subscriber equipment 413.
The number of users of a WCDMA base station support is 80 voice users of up-downgoing symmetry, or 25 64kbps data services of up-downgoing symmetry, or 10 144kbps business of up-downgoing symmetry, or 5 384kbps data services of up-downgoing symmetry.A TD-SCDMA base station up-downgoing can be supported 50 voice users or 20 64kbps data services or 8 144kbps data services, or 4 384kbps data services.Corresponding to the disposal ability of base station, a 384kbps data service is equivalent to 2 144kbps data services, is equivalent to 5 64kbps data services.
When subscriber equipment is initiated the descending PS64kbps business of professional and 26 the up PS64kbps/ of the descending PS384kbps of 3 up PS64kbps/ simultaneously, if on a WCDMA base station and a TD-SCDMA base station, realize carrying randomly, for example 3 descending PS384kbps traffic assignments of up PS64kbps/ on the WCDMA base station, 10 descending 64kbps business of up 64kbps/ can also be carried in the WCDMA base station so, and 20 64kbps data services that the TD-SCDMA base station is supported can realize 10 descending 64kbps of up 64kbps/, thereby whole network can also be supported the 64kbps business of 20 up-downgoing symmetries, still has 6 descending 64kbps of up 64kbps/ not realize.
After adopting the method for the invention, radio network controller all is distributed in 3 descending PS384kbps business of up PS64kbps/ on the TD-SCDMA base station, then the resource that can also utilize of TD-SCDMA base station is 2 64kbps data services, just support the descending PS64kbps business of up PS64kbps/ of a symmetry, 25 descending PS64kbps business of up PS64kbps/ can be supported in the WCDMA base station, just satisfy the demands.
As seen after implementing the present invention, the TD-SCDMA network is more distributed to the asymmetric calling of up-downgoing, thereby make the number of users and professional total bandwidth maximization that whole network can be supported.
The above only is a preferred implementation of the present invention, does not constitute the qualification to protection range of the present invention.Any any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection range of the present invention.
Claims (8)
1. the distribution method of service bearer in WCDMA and the TD-SCDMA hybrid network is characterized in that, may further comprise the steps:
A) subscriber equipment is initiated communication service by the base station and is inserted request;
B) the shared radio network controller of described WCDMA and TD-SCDMA hybrid network is according to the type of service of described access request and the type of network resource status decision carrying access base station, if the type of service of described request is the up-downgoing asymmetric traffic, make decision by the base station carrying access of TD-SCDMA in the condition that network resource status allows;
C) whether the described radio network controller type of judging described carrying access base station is identical with the type that inserts the request base station, if identical then notify described subscriber equipment to insert successfully, the commentaries on classics step e); If carrying access base station different then that notify described subscriber equipment to bear its business changes step d);
D) described radio network controller notice carrying access base station is born the business of this subscriber equipment;
E) described subscriber equipment is finished communication service by the carrying access base station
2. according to the described service bearer distribution method of claim 1, it is characterized in that: step b) is made decision by the base station carrying access of WCDMA in the condition that network resource status allows if the type of service of described request is the up-downgoing symmetrical service
3. according to the described service bearer distribution method of claim 2, it is characterized in that: the described communication service of step a) is the business with service quality QoS requirements that comprises the multiple business type;
Step b) is described to determine the type of carrying access base station to be specially according to inserting the type of service and the network resource status of asking: if comprise downloading business or Streaming Media class business in the described multiple business type, make decision by BTS carrying access in the condition that network resource status allows; Otherwise make decision by Node B carrying access in the condition that network resource status allows
4. according to the described service bearer distribution method of claim 2, it is characterized in that: the described up-downgoing symmetrical service of step b) comprises speech business low speed data class business or interaction service; Up-downgoing is not to becoming business to comprise downloading business or Streaming Media class business
5. according to claim 23 or 4 described service bearer distribution methods, it is characterized in that: described subscriber equipment is supported WCDMA and two kinds of mode of operations of TD-SCDMA
6. according to the described service bearer distribution method of claim 5, it is characterized in that: described step d) and e) between comprise: described subscriber equipment switching working mode
7. according to the described service bearer distribution method of claim 6, it is characterized in that: described step e) is specially:
E1) carry out resource allocation between described radio network controller and described access base station of described access base station and the described subscriber equipment;
E2) described subscriber equipment communicates business;
E3) sign off discharges resource.
8. according to the described service bearer distribution method of claim 7, it is characterized in that: the described notifying user equipment of step c) is born the carrying access base station of its business, is realized by down channel by radio network controller
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| CNB2005100768040A CN100466802C (en) | 2004-12-14 | 2004-12-14 | WCDMA and TD-SCDMA mixed network service bearing and distributing method |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101312588B (en) * | 2007-05-24 | 2011-09-21 | 中兴通讯股份有限公司 | Wireless communication method |
| CN101119524B (en) * | 2007-09-12 | 2010-07-14 | 中兴通讯股份有限公司 | Method and device for overload control in communication system |
| CN101409947B (en) * | 2007-10-09 | 2010-06-23 | 中兴通讯股份有限公司 | Method for judging initiation call based on business type for double-mode terminal |
| CN101729592B (en) * | 2008-10-29 | 2013-08-07 | 中国移动通信集团公司 | Distributed communication network and equipment and communication network separation method |
| CN101835241A (en) * | 2009-03-11 | 2010-09-15 | 中兴通讯股份有限公司 | Access control method, core network and wireless network controller |
| CN102164389B (en) * | 2010-02-24 | 2018-01-09 | 中兴通讯股份有限公司 | The inter-system switching method and device of terminal |
| CN103369682B (en) * | 2013-07-14 | 2016-02-10 | 西安电子科技大学 | The method for channel allocation of multi channel networks |
| CN109219157B (en) * | 2018-10-30 | 2020-12-08 | 中国联合网络通信集团有限公司 | Network mode configuration method and device |
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| CN1304619A (en) * | 1998-04-03 | 2001-07-18 | 艾利森电话股份有限公司 | Flexible radio access and resource allocation in universal mobile telephone system (UMTS) |
| WO2002032160A2 (en) * | 2000-10-09 | 2002-04-18 | Nokia Corporation | Service priorities in multi-cell network |
| CN1476266A (en) * | 2003-07-18 | 2004-02-18 | 大唐移动通信设备有限公司 | Radio resources layout method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1304619A (en) * | 1998-04-03 | 2001-07-18 | 艾利森电话股份有限公司 | Flexible radio access and resource allocation in universal mobile telephone system (UMTS) |
| WO2002032160A2 (en) * | 2000-10-09 | 2002-04-18 | Nokia Corporation | Service priorities in multi-cell network |
| CN1476266A (en) * | 2003-07-18 | 2004-02-18 | 大唐移动通信设备有限公司 | Radio resources layout method and device |
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