CN101409573B - Method for reducing transmission amount of united detection message and apparatus thereof - Google Patents
Method for reducing transmission amount of united detection message and apparatus thereof Download PDFInfo
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Abstract
The invention discloses a method for reducing transinformation content of joint detection and a device thereof; the invention is used in a wireless communication system which has the RNC management used for radio resource of one or a plurality of base station(s) under the system, and the base station includes a plurality of local signal processing modules that are used for receiving the signal sent by all the UEs within the corresponding geographic area and detecting in a united way. When UE wireless link distribution situation is changed, if RNC determines that adjacent areas are affected according to the adjacent area list of the configuration, grouping is firstly carried out on the affected areas by the RNC according to the base stations which the affected areas belong to, and joint detection message is generated for the base stations which every group of affected areas belong to, then the list of the affected areas under the base station is added; the multiplexing joint detection message is sent to the base station. Therefore, each piece of the message is sent by taking the base station as a unit, the size of message is reduced and is less than that of the regular service, thus not only realizing the joint detection, but also reducing the influence on the regular service.
Description
Technical field
The present invention relates to TD SDMA and insert (TD-SCDMA; TimeDivision-Synchronization Code Division Multiple Access) associated detection technique in the system relates in particular to a kind of method and device thereof that reduces transmission amount of united detection message.
Background technology
Wireless communication system provides wireless traffic to being distributed in intrasystem a plurality of subscriber equipment (UE).Geographic range by the wireless communication system support is divided into the different zone, space that is commonly referred to " sub-district ".Usually, each sub-district also is divided into a plurality of sectors, such as 3.Each radio network controller in the system (RNC, Radio Network Control) management is used for one or more base stations radio resource of (Node B also can be called Node B), links to each other through Iub interface between RNC and the Node B that is managed.
Traditional code division multiple access inserts (CDMA; Code Division Multiple Access) system; The correlation of spreading code causes multiple access to disturb between the user; The reception detection scheme that adopts in this system is that other subscriber signals are all treated as noise, becomes the chief component of noise along with number of users increases the multiple access interference, thereby has limited the increase of power system capacity.TD-SCDMA introduces associated detection technique for this reason, reduces and disturbs, and the expansion capacity reduces the power control requirement, weakens near-far interference.Joint detection algorithm is realized by base station (Node B), needs certain precondition, needs acquisition to influence the information of the subscriber equipment (UE, User Equipment) of this sub-district, and the UE informational needs that influences this sub-district obtains from RNC.Therefore, needing increases and the relevant UE information of deletion through the Iub mouth between RNC and the Node B, so that Node B carries out united detection processing.
Specifically; Node B comprises a plurality of sector signals processing modules; Each sector signals processing module is used for receiving UE sends in the corresponding sector signal and the UE signal of receiving is carried out joint-detection, simultaneously RNC is dealt into signal of base station and is transmitted to the UE in the corresponding sector.When existing TD-SCDMA system realizes the joint-detection function, on the Iub mouth be that unit realizes that the increase of relevant UE information and deletion handle with the sector.During the Radio Link of RNC foundation, reprovision, deletion UE, notify the corresponding sector signals processing module in adjacent sector of this sector, UE place, so that Node B can demodulate the signal of this UE, and unlikely as disturbing, to reduce total interference level of sector.
Because joint-detection message need be sent to all influenced sectors, message can be duplicated at double, surpasses the regular traffic size of message, business is produced impact.To above problem, consider a lot of influenced sectors under same Node B, we have proposed the scheme of the defeated joint-detection message of a kind of Iub of minimizing oral instructions.
Summary of the invention
The technical problem that the present invention will solve provides a kind of method and device thereof that reduces transmission amount of united detection message, neither influence joint-detection normally carry out and from having reduced the quantity of RNC to a great extent to the joint-detection message of Node B transmission.
On the one hand; The present invention proposes a kind of method that reduces transmission amount of united detection message; Be used for wireless communication system, the radio network controller management is used for its radio resources next or a plurality of base stations in this system, and said base station comprises a plurality of regional signal processing modules; Said each regional signal processing module is used to receive the signal that each subscriber equipment sends in the corresponding geographic area and carries out joint-detection; When the wireless link distribution situation that subscriber equipment is wherein arranged changed, influenced if said radio network controller defines adjacent area according to the adjacent area tabulation of disposing, then this method may further comprise the steps:
Steps A 1, said radio network controller divides into groups to involved area according to base station under the involved area;
Steps A 2 for base station under each group involved area generates joint-detection message and adds affected area domain list under the said base station, sends to said base station with the joint-detection message after multiplexing.
In the said method, steps A 2 is to judge whether respectively organize the affiliated base station of involved area supports the joint-detection message reuse, and is to support the base station of message reuse to generate joint-detection message and add affected area domain list under the said base station.
In the said method, said joint-detection message is that joint-detection is set up request message or joint-detection deletion request message.
In the said method, said geographic area is the sector.
Correspondingly; A kind of method that reduces transmission amount of united detection message is also proposed; Be used for wireless communication system, the radio network controller management is used for its radio resources next or a plurality of base stations in this system, and said base station comprises a plurality of regional signal processing modules; Said each regional signal processing module is used to receive the signal that each subscriber equipment sends in the corresponding geographic area and carries out joint-detection, and this method may further comprise the steps:
Step B1, said base station for said radio network controller send multiplexing after joint-detection message, resolve the affected area domain list wherein comprise;
Step B2 according to the result that said affected area domain list is resolved, duplicates and is distributed to the corresponding regional signal processing module of each involved area in the said tabulation to the content of said joint-detection message after multiplexing.
In the said method, step B1 judges whether the joint-detection message that said radio network controller is sent is multiplexing message, and resolves the affected area domain list that comprises in the joint-detection message after multiplexing.
In the said method, said joint-detection message is that joint-detection is set up request message or joint-detection deletion request message.
In the said method, said geographic area is the sector.
On the other hand; The present invention proposes a kind of radio network controller; Management is used for its radio resources next or a plurality of base stations; Said base station comprises a plurality of regional signal processing modules, and said each regional signal processing module is used to receive the signal that each subscriber equipment sends in the corresponding geographic area and carries out joint-detection, and this radio network controller comprises with lower unit:
The sector grouped element is used for variation when subscriber equipment wireless link distribution situation adjacent area when influential, is divided into groups to involved area according to base station under the involved area;
Message reuse and transmitting element are used to and respectively organize involved area affiliated base station generation joint-detection message and add affected area domain list under the said base station, and the joint-detection message after multiplexing is sent to said base station.
Above-mentioned radio network controller also comprises: base station configuration parameter judging unit; Be used for according to configuration parameter judge respectively organize involved area under the base station whether support the joint-detection message reuse, and will support the multiplexing and transmitting element of base station notification message of message reuse.
In the above-mentioned radio network controller, said joint-detection message is that joint-detection is set up request message or joint-detection deletion request message.
In the above-mentioned radio network controller, said geographic area is the sector.
Correspondingly; A kind of interface and control module are also proposed; Be positioned on the base station, the interface that is used to accomplish complete machine control and is provided to radio network controller, said base station comprises a plurality of regional signal processing modules that link to each other with said interface and control module; Said each regional signal processing module is used to receive the signal that each subscriber equipment sends in the corresponding geographic area and carries out joint-detection, it is characterized in that said interface and control module comprise with lower unit:
The list of sectors resolution unit is used for resolving the influenced list of sectors that the joint-detection message after multiplexing that said radio network controller sends comprises;
Message demultiplexing and Dispatching Unit are used for the analysis result according to the list of sectors resolution unit, duplicate the content of said joint-detection message after multiplexing and are distributed to the corresponding sector signals processing module in each influenced sector in the said tabulation.
Above-mentioned interface and control module also comprise: joint-detection message determining unit is used to judge whether the joint-detection message that said radio network controller is sent is multiplexing message, and sends the joint-detection message after multiplexing to the list of sectors resolution unit.
In above-mentioned interface and the control module, said joint-detection message is that joint-detection is set up request message or joint-detection deletion request message.
In above-mentioned interface and the control module, said geographic area is the sector.
Advantage and characteristics that the present invention is main are following:
1. each message is that unit sends with Node B, and message reduces in a large number, is less than the regular traffic size of message, both can realize the joint-detection function, has reduced the influence to regular traffic again.Overcome in the prior art that the RNC system loading is overweight, systematic function is affected, the shortcoming of transmission band occupation overfrequency because joint-detection message too much causes.
2. in existing TD-SCDMA system, adopt technical scheme of the present invention to influenced sector message reuse under the same Node B, need not to increase new hardware cost, only need software upgrading just can be realized, it is obvious to change little effect.
Description of drawings
Fig. 1 illustrates existing joint-detection transmission of messages mode;
Fig. 2 illustrates the handling process of the embodiment of the invention 1 said RNC transmission joint-detection message under the situation of carrying out the joint-detection start flow;
Fig. 3 illustrates the handling process of the embodiment of the invention 1 said Node B reception joint-detection message under the situation of carrying out the joint-detection start flow;
Fig. 4 illustrates the joint-detection transmission of messages mode of the embodiment of the invention 1;
Fig. 5 illustrates the embodiment of the invention 1 described RNC;
Fig. 6 illustrates interface and the control module on the embodiment of the invention 1 described Node B.
Embodiment
The TD-SCDMA system that is divided into 3 sectors with each microzonation is an example; All comprise at least one base station (Node B) in each sub-district; Each Node B comprises three sector signals processing modules; Corresponding one by one with 3 sectors in the sub-district, also comprise the interface and the control module that link to each other with three sector signals processing modules, accomplish the interface that radio network controller (RNC) controlled and be provided to complete machine.The sector signals processing module is to handling from the signal of the UE in the corresponding sector; After joint-detection; Send to RNC through interface and control module; Otherwise the signal that RNC sends is transmitted to the sector signals processing module by interface and control module, and the UE after the sector signals processing module is handled in corresponding sector sends.
By original mode, RNC to Node B send joint-detection set up with deletion request message all be to be unit with the sector, promptly each bar message is all corresponding to the affected sector of the Node B next one, and is as shown in Figure 1.Now, initiate and delete the minimizing of transmission of messages amount in the flow process in order to realize joint-detection, the present invention initiates and deletes in joint-detection and adopts message reuse to handle in the flow process.
For the message reuse scheme of supporting that the present invention proposes, need to revise joint-detection and set up request and joint-detection deletion request message.RNC increases the tabulation of influenced sector under the Node B at the back in former message, promptly through a piece of news with all receive the information of the sector that this UE influences all to offer this Node B under a UE Radio Link situation of change and the Node B.
After interface on the Node B and control module receive the message that RNC sends; According to the influenced list of sectors that comprises in this message; With the sector is that unit makes up many joint-detection foundation or deletion request message, and these message that rebuild are identical with existing joint-detection foundation or deletion request message form.Interface and control module are forwarded to the corresponding sector signals processing module in each influenced sector respectively with the multiple messages that rebuilds, and it is constant that reception joint-detection foundation of sector signals processing module or the message that deletion request message and later use received are carried out the processing of joint-detection.
In this way, the work that needed multiple messages to accomplish originally only needs a piece of news just can accomplish now.The scheme of the reduction transmission amount of united detection message that the present invention proposes mainly adopts Iub mouth message reuse to handle and reduces size of message, improves the message transmitting efficiency of RNC.Change very for a short time when multiplexing, only need joint-detection to set up the tabulation that request message and joint-detection deletion request message carry influenced sector, be forwarded to the sector signals processing module of Node B relevant sectors correspondence by Node B.
Consider not to be the joint-detection that all Node B of producer support to reduce the transmission of messages amount, be compatible other producer's equipment, can confirm whether sector joint-detection message is multiplexing under the relevant Node B through configuration parameter.
Below, be described in the method for the embodiment of the invention 1 said reduction transmission amount of united detection message under the situation of carrying out the joint-detection start flow.
When foundation of UE Radio Link or reprovision, RNC judges whether adjacent sectors is exerted an influence according to the adjacent list of sectors of configuration, if exert an influence, need send joint-detection to relevant sectors and set up request message, and handling process is as shown in Figure 2.
Correspondingly, the handling process of Node B reception and forwarding joint-detection message is as shown in Figure 3.
Through this determining step, no matter whether RNC end joint-detection message is multiplexing, Node B end can both be handled the joint-detection message that RNC sends.If the reception flow process of Node B end comprises determining step 21, then the transmission of RNC end joint-detection message not only can be adopted multiplex mode but also can adopt original mode, therefore can between two kinds of send modes, switch.
Below, be described in and carry out the method that joint-detection is deleted the embodiment of the invention 1 described reduction transmission amount of united detection message under the situation of flow process.
When the UE Radio Link is deleted; RNC judges whether adjacent sectors is exerted an influence according to the adjacent list of sectors of configuration; If exert an influence; Need send the joint-detection deletion request message to relevant sectors, it is similar that the transmission joint-detection of handling process above is set up request, and just joint-detection is set up request message changes the joint-detection deletion request message into.The reception flow process of Node B end is also similar, and just joint-detection is set up request message changes the joint-detection deletion request message into, repeats no more at this.
It is thus clear that; The method of embodiment 1 described reduction transmission amount of united detection message is supported two kinds of transmission of messages modes simultaneously; The transmission means of the multiplexing joint-detection message that a kind of the present invention of being provides; Shown in Node B1 among Fig. 4, another kind is the transmission means of existing not multiplexing joint-detection message, shown in Node B2 among Fig. 4.
Fig. 5 illustrates the embodiment of the invention 1 described RNC, and this RNC comprises sector grouped element 501, Node B configuration parameter judging unit 502 and message reuse and transmitting element 503.Wherein:
Sector grouped element 501 is used for variation when UE wireless link distribution situation adjacent sectors when influential, is divided into groups to influenced sector according to the Node B under the influenced sector;
Node B configuration parameter judging unit 502 is used for judging according to configuration parameter whether the Node B respectively organize under the influenced sector supports the joint-detection message reuse, and will supports the multiplexing and transmitting element 503 of Node B notification message of message reuse;
Message reuse and transmitting element 503; Be used to the corresponding influenced joint-detection message of set of sectors generation of each Node B that supports message reuse and in message, increase this and organize the tabulation of influenced sector, the joint-detection message after multiplexing is sent to corresponding N ode B.
Fig. 6 illustrates interface and the control module on the embodiment of the invention 1 described Node B, and this interface and control module comprise joint-detection message determining unit 601, list of sectors resolution unit 602 and message demultiplexing and Dispatching Unit 603.Wherein:
Joint-detection message determining unit 601 is used to judge whether the joint-detection message that RNC sends is multiplexing message, and sends the joint-detection message after multiplexing to list of sectors resolution unit 602;
List of sectors resolution unit 602 is used for resolving the influenced list of sectors that the joint-detection message after multiplexing comprises;
Message demultiplexing and Dispatching Unit 603, the sign of the influenced sector that is used for parsing according to list of sectors resolution unit 602 is duplicated the content of this joint-detection message after multiplexing and is distributed to the corresponding sector signals processing module in each influenced sector.
Below, be that example compares the transmission quantity of Iub mouth joint-detection message of the present invention and the transmission quantity of existing Iub mouth joint-detection message with a kind of typical cell configuration.
Suppose that each sub-district, 2 sub-districts comprises 3 sectors, because all there is a Node B each sub-district, so this cell configuration comprises 2 Node B.Adjacent area each other between any two sectors in 6 sectors that 2 sub-districts comprise.If have N UE in each sector, then co-exist in UE in 2 sub-districts of 2 Node B coverings:
UE sum=N UE * 3 sector * 2 Node B=6N.
For basic CS territory user's flow process, need transmission altogether at Iub interface:
Joint-detection message sum=UE sum * each UE2 bar message * 5 adjacent sectors=6N * 2 * 5=60N bar message.
If carry out message reuse according to technical scheme of the present invention, then the message demand of Iub interface is:
Joint-detection message sum=UE sum * each UE2 bar message * 5 adjacent sectors belong to 2 Node B=6N * 2 * 2=24N bar message.
It is thus clear that, if carry out message reuse, can save altogether on the Iub interface according to technical scheme of the present invention: (60N-24N)/size of message of 60N=60%, and adjacent sectors is many more, and the ratio that can save is high more.
Therefore, this flow control technique of the present invention reduces the joint-detection message of transmitting on the Iub interface in a large number, both can realize the joint-detection function, has avoided the impact to regular traffic again.
Under the situation that does not deviate from spirit of the present invention and essence thereof, various corresponding change that those of ordinary skill in the art make according to the present invention and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (16)
1. method that reduces transmission amount of united detection message; Be used for wireless communication system; The radio network controller management is used for its radio resources next or a plurality of base stations in this system; Said base station comprises a plurality of regional signal processing modules, and said each regional signal processing module is used to receive the signal that each subscriber equipment sends in the corresponding geographic area and carries out joint-detection, when the wireless link distribution situation that subscriber equipment is wherein arranged changes; If it is influenced that said radio network controller defines adjacent area according to the adjacent area tabulation of disposing, it is characterized in that this method may further comprise the steps:
Steps A 1, said radio network controller divides into groups to involved area according to base station under the involved area;
Steps A 2 for base station under each group involved area generates joint-detection message and adds affected area domain list under the said base station, sends to said base station with the joint-detection message after multiplexing.
2. the method for claim 1 is characterized in that:
Steps A 2 is to judge whether respectively organize the affiliated base station of involved area supports the joint-detection message reuse, and is affected area domain list under the base station generation joint-detection message of support message reuse and the base station of adding this support message reuse.
3. according to claim 1 or claim 2 method is characterized in that said joint-detection message is that joint-detection is set up request message or joint-detection deletion request message.
4. the method for claim 1 is characterized in that said geographic area is the sector.
5. method that reduces transmission amount of united detection message; Be used for wireless communication system; The radio network controller management is used for its radio resources next or a plurality of base stations in this system; Said base station comprises a plurality of regional signal processing modules, and said each regional signal processing module is used to receive the signal that each subscriber equipment sends in the corresponding geographic area and carries out joint-detection, it is characterized in that this method may further comprise the steps:
Step B1, said base station for said radio network controller send multiplexing after joint-detection message, resolve the affected area domain list wherein comprise;
Step B2 according to the result that said affected area domain list is resolved, duplicates and is distributed to the corresponding regional signal processing module of each involved area in the said tabulation to the content of said joint-detection message after multiplexing.
6. method as claimed in claim 5 is characterized in that:
Step B1 judges whether the joint-detection message that said radio network controller is sent is multiplexing message, and resolves the affected area domain list that comprises in the joint-detection message after multiplexing.
7. like claim 5 or 6 described methods, it is characterized in that said joint-detection message is that joint-detection is set up request message or joint-detection deletion request message.
8. method as claimed in claim 5 is characterized in that said geographic area is the sector.
9. radio network controller; Management is used for its radio resources next or a plurality of base stations; Said base station comprises a plurality of regional signal processing modules; Said each regional signal processing module is used to receive the signal that each subscriber equipment sends in the corresponding geographic area and carries out joint-detection, it is characterized in that said radio network controller comprises with lower unit:
The sector grouped element is used for variation when subscriber equipment wireless link distribution situation adjacent area when influential, is divided into groups to involved area according to base station under the involved area;
Message reuse and transmitting element are used to and respectively organize involved area affiliated base station generation joint-detection message and add affected area domain list under the said base station, and the joint-detection message after multiplexing is sent to said base station.
10. radio network controller as claimed in claim 9 is characterized in that said radio network controller also comprises:
Base station configuration parameter judging unit, be used for according to configuration parameter judge respectively organize involved area under the base station whether support the joint-detection message reuse, and will support the multiplexing and transmitting element of base station notification message of message reuse.
11., it is characterized in that said joint-detection message is that joint-detection is set up request message or joint-detection deletion request message like claim 9 or 10 described radio network controllers.
12. radio network controller as claimed in claim 9 is characterized in that said geographic area is the sector.
13. interface and control module; Be positioned on the base station; The interface that is used to accomplish complete machine control and is provided to radio network controller; Said base station comprises a plurality of sector signals processing modules that link to each other with said interface and control module, and said each sector signals processing module is used to receive the signal that each subscriber equipment sends in the corresponding geographic area and carries out joint-detection, it is characterized in that said interface and control module comprise with lower unit:
The list of sectors resolution unit is used for resolving the influenced list of sectors that the joint-detection message after multiplexing that said radio network controller sends comprises;
Message demultiplexing and Dispatching Unit are used for the analysis result according to the list of sectors resolution unit, duplicate the content of said joint-detection message after multiplexing and are distributed to the corresponding sector signals processing module in each influenced sector in the said tabulation.
14. interface as claimed in claim 13 and control module is characterized in that said interface and control module also comprise:
Joint-detection message determining unit is used to judge whether the joint-detection message that said radio network controller is sent is multiplexing message, and sends the joint-detection message after multiplexing to the list of sectors resolution unit.
15., it is characterized in that said joint-detection message is that joint-detection is set up request message or joint-detection deletion request message like claim 13 or 14 described interface and control modules.
16. interface as claimed in claim 13 and control module is characterized in that said geographic area is the sector.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050175074A1 (en) * | 2004-02-11 | 2005-08-11 | Interdigital Technology Corporation | Wireless communication method and apparatus for performing multi-user detection using reduced length channel impulse responses |
| CN1753322A (en) * | 2004-09-24 | 2006-03-29 | 大唐移动通信设备有限公司 | Multi region combined detection method of time gap code division multi address system |
| CN1870452A (en) * | 2005-05-26 | 2006-11-29 | 上海原动力通信科技有限公司 | Method for adjacent cell joint detection in time-dvision duplex CDMA system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050175074A1 (en) * | 2004-02-11 | 2005-08-11 | Interdigital Technology Corporation | Wireless communication method and apparatus for performing multi-user detection using reduced length channel impulse responses |
| CN1753322A (en) * | 2004-09-24 | 2006-03-29 | 大唐移动通信设备有限公司 | Multi region combined detection method of time gap code division multi address system |
| CN1870452A (en) * | 2005-05-26 | 2006-11-29 | 上海原动力通信科技有限公司 | Method for adjacent cell joint detection in time-dvision duplex CDMA system |
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