CN102196490A - Wireless resource management method - Google Patents
Wireless resource management method Download PDFInfo
- Publication number
- CN102196490A CN102196490A CN2010101177104A CN201010117710A CN102196490A CN 102196490 A CN102196490 A CN 102196490A CN 2010101177104 A CN2010101177104 A CN 2010101177104A CN 201010117710 A CN201010117710 A CN 201010117710A CN 102196490 A CN102196490 A CN 102196490A
- Authority
- CN
- China
- Prior art keywords
- base station
- sub
- district
- signal strength
- signal intensity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a wireless resource management method, which comprises that: in a service process of user equipment (UE), a base station detects the signal intensity of the UE in a current serving cell and neighbor cells of the current serving cell respectively, and reports the detected signal intensity of the UE in each cell to a radio network controller (RNC); the RNC estimates the position of the UE according to the signal intensity of the UE in each cell; and the RNC performs wireless resource management according to the position of the UE. By the method, more accurate wireless resource management can be performed.
Description
Technical field
The present invention relates to TD-SCDMA system same frequency networking technology, particularly a kind of method of carrying out RRM.
Background technology
Co-channel interference is a sixty-four dollar question that influences the networking of TD-SCDMA system same frequency.Problem of co-channel interference at the TD-SCDMA system, industry has proposed a lot of solutions at present, wherein, utilize the positional information of UE---it is a kind of important means that Serving cell and neighbor cell path loss rate (SNPL:Serving-NeighborPath Loss ratio) are carried out the optimization of corresponding radio resource management algorithm.
At present, network side is mainly by offering the positional information of obtaining UE on the UE.But do a lot of limitation like this, particularly:
1) broadcasting of smart antenna switching band switches with the inconsistent SNPL that will cause UE to measure inaccurate with Traffic Channel;
2) UE periodic measurement and report the interface-free resources that needs consume valuable;
3) switch and to give the correct time on relevant relating to the sub-district, UE need carry out different-frequency measure, and the excessive cycle of different-frequency measure, is difficult to guarantee the precision measured, and this will cause handover success rate to reduce.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of carrying out RRM, to realize accurate RRM.
For achieving the above object, the invention provides a kind of method of carrying out RRM, this method comprises:
Carry out in the professional process at user terminal UE, the base station is detected the signal strength signal intensity of described UE at the neighbor cell of its current service cell and described current service cell respectively, and gives radio network controller (RNC) with the UE that detection obtains at the reporting signal strength of each sub-district;
RNC estimates the position of UE in the signal strength signal intensity of each sub-district according to described UE;
RNC carries out RRM according to the position of described UE.
Described UE carries out professional process: the random access procedure of UE;
Described base station is detected described UE respectively: the base station is measured the signal strength signal intensity of UE in the Random Access Channel of described each sub-district respectively;
Described RNC carries out RRM according to the position of described UE: RNC is the UE distributing radio resource according to the position of described UE.
Describedly comprise for the UE distributing radio resource: disturb less resource for the UE of the cylindrical that is in neighbor cell distributes.
Described UE for the cylindrical that is in neighbor cell distribute to disturb less resource to be: for the UE of the cylindrical that is in neighbor cell distributes the resource of different frequency or the resource of different time-gap.
Described UE carries out professional process: the link of UE keeps process;
Described base station is detected described UE respectively: the base station is measured in the signal strength signal intensity of described each sub-district UE in real time;
Described RNC carries out RRM according to the position of described UE: the position according to described UE is that UE carries out the resource adjustment.
Described UE carries out professional process: the minizone handoff procedure of UE;
Described base station is detected described UE respectively: the base station is measured in the signal strength signal intensity of described each sub-district UE in real time;
After base station measurement obtains the signal strength signal intensity of UE in described each sub-district, further comprise: the position of UE is estimated according to the result of described measurement in the base station, and with the position of the UE judgement foundation as the minizone switch decision of described UE.
After the base station detection obtained the signal strength signal intensity of UE in described each sub-district, this method further comprised:
At each UE, the position of described UE is estimated in the base station in the signal strength signal intensity of each sub-district according to described UE; And, in all sub-districts that described base station is administered, UE is carried out combined dispatching according to the position of each UE.
As seen from the above technical solution, the present invention is by carrying out at UE in the professional process, the base station the UE current service cell, and corresponding adjacent sub-district detect the signal strength signal intensity of this UE respectively, obtain the signal strength signal intensity of UE by RNC according to reporting of base station then in each sub-district, and unite estimation in the signal strength signal intensity of each sub-district according to UE, judge the relative position of UE, thereby provide foundation for more accurate RRM.
To can solve the corresponding techniques problem under technical solution of the present invention application and the existing various concrete application scenarioss.For example: can solve in the TFFR algorithm insert at random and link maintenance process in corresponding problem, be the UE power saving, save interface-free resources, reduce the probability that switches, the possibility of reduction call drop, and provide foundation for the adjustment of Radio Resource; Can improve the precision that switch the minizone, improve success rate for switching; And, utilize and can carry out combined dispatching to a plurality of sub-districts in the NB based on the UE location estimation of multi-plot joint channel estimating, reach the reduction co-channel interference, improve the purpose of edge customer throughput.
Description of drawings
Fig. 1 detects the schematic diagram of UE in the signal strength signal intensity of each sub-district respectively for base station of the present invention;
Fig. 2 carries out the schematic flow sheet of the method for RRM for the present invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
Main thought of the present invention is: when estimating the UE position, introduce the notion that multi-cell channel is estimated, carry out in the professional process at UE, base station (NB) the UE current service cell, and corresponding adjacent sub-district detect the signal strength signal intensity of this UE respectively, obtain the signal strength signal intensity of UE by radio network controller (RNC) according to reporting of NB then in each sub-district, and unite estimation in the signal strength signal intensity of each sub-district according to UE, judge the relative position of UE, thereby provide foundation for more accurate RRM.
Fig. 1 detects the schematic diagram of UE in the signal strength signal intensity of each sub-district respectively for base station of the present invention.Among Fig. 1, UE is h at the channel impulse response of current service cell
0, according to h
0Can obtain the signal strength signal intensity that UE arrives base station in service sector, h
1～h
6Be the channel impulse response of UE, can obtain the signal strength signal intensity that UE arrives neighbor cell thus at neighbor cell.Current service cell is called sub-district 0, and neighbor cell is called 1～sub-district, sub-district 6, and 0～sub-district, sub-district 6 can be all in the base station, also can adhere to different base stations separately.
Fig. 2 carries out the schematic flow sheet of the method for RRM for the present invention.Referring to Fig. 2, this method comprises:
Step 201: carry out in the professional process at UE, the base station is detected the signal strength signal intensity of this UE at the neighbor cell of its current service cell and current service cell respectively, and gives RNC with the UE that detection obtains at the reporting signal strength of each sub-district.
Step 202:RNC estimates the position of UE in the signal strength signal intensity of each sub-district according to UE.
Step 203:RNC carries out RRM according to the position of UE.
After obtaining the positional information of UE, can optimize accordingly existing radio resource management method, provide corresponding prioritization scheme at several concrete application below.
Embodiment one:
Present embodiment is used for TD-SCDMA soft-frequency reuse (TFFR:TD-SCDMA Flexible Frequency Reuse) optimization Algorithm with technical solution of the present invention.
The cardinal principle of TFFR algorithm is: divide into interior circle, cylindrical two parts for a short time with one, RNC disturbs less resource for the UE of the cylindrical that is in neighbor cell distributes according to the position of UE as far as possible, reduces the purpose that network common frequency disturbs thereby reach.For example:, reduce the purpose that cell boundary users is disturbed thereby reach for the UE of the cylindrical that is in neighbor cell distributes the resource of different frequency or the resource of different time-gap.
A key in the TFFR algorithm is the positional information that network side will obtain UE.Yet there is following problem in existing TFFR algorithm:
A) when UE inserts, be difficult to obtain the positional information of UE.
When UE initially inserts, make the UE reporting position information very difficult, at this moment, positional information comprises: the RSCP of the received signal code power (RSCP:Received Signal Code Power) of the Primary Common Control Physical Channel of Serving cell (PCCPCH:Primary Common Control PhysicalChannel) and the PCCPCH of neighbor cell.These informational needs UE measures under idle (Idle) state in real time, and the power saving of UE is had considerable influence.In addition, the compatibility of UE also is very big problem.If when UE inserts, do not carry out TFFR, then will cause the increase of switching, and increase the possibility of call drop.
B) in the link maintenance process of UE, need UE periodically to report the PCCPCH RSCP of Serving cell and neighbor cell, consumed a large amount of interface-free resources, accurately also cannot say for sure simultaneously to demonstrate,prove.
Above-mentioned two problems, the UE position measurement of the base station multi-plot joint channel estimating that proposes based on the present invention can solve.Particularly:
In the process that UE inserts at random, NB can measure the signal strength signal intensity of UE in the Random Access Channel (RACH) of each sub-district respectively, and reports RNC, and RNC can judge the position of UE in view of the above, and is that UE distributes appropriate wireless resources according to the positional information of UE.For example: can distribute for the UE of the cylindrical that is in neighbor cell and disturb less resource.
In the link maintenance process of UE, NB can measure in the signal strength signal intensity of each sub-district UE in real time, and report RNC, RNC can obtain the positional information of UE according to the measurement reporting real-time of NB, and provide foundation for the Radio Resource adjustment of UE according to the positional information of UE, for UE carries out the Radio Resource adjustment.
By as seen above-mentioned, adopt the present invention to solve to insert at random in the TFFR algorithm and link maintenance process in corresponding problem, be the UE power saving, save interface-free resources, reduce the probability that switches, the possibility of reduction call drop, and provide foundation for the adjustment of Radio Resource.
Embodiment two:
Present embodiment is used for the optimization that switch the minizone with technical solution of the present invention.
Present minizone is switched the measurement that all is based on UE and is reported triggering, and still, measurements reports that between triggering cell there is following problem in switching based on UE:
A) broadcasting of smart antenna switching band switches with the inconsistent SNPL that will cause UE to measure inaccurate with Traffic Channel;
B) UE need carry out different-frequency measure, and the excessive cycle of different-frequency measure is difficult to the precision that assurance is measured, and this will cause handover success rate to reduce.
If employing the inventive method, can measure in the signal strength signal intensity of each sub-district UE in real time by the base station, and estimate the position of UE according to the result who measures, and with the position of UE basis for estimation as the minizone switch decision of this UE, thereby improve the accuracy of switching judging, improve success rate for switching.
Embodiment three:
Present embodiment is used to realize multi-plot joint dispatching with technical solution of the present invention.
Adopt the inventive method, the base station can be detected and obtain the signal strength signal intensity of UE in each sub-district, and estimate the position of each UE in the signal strength signal intensity of each sub-district according to each UE, then according to the position of each UE, the combined dispatching device of sub-district more than is set up in a plurality of sub-districts of administering for the base station, is that the UE of a plurality of sub-districts carries out combined dispatching by the multi-plot joint dispatching device according to the positional information of UE, thereby reduces co-channel interference, improves the throughput of edge customer.
Reduce co-channel interference for multi-plot joint dispatching, can describe by following example: suppose that UE1, UE2 are respectively the HSDPA terminal of two neighbor cells, if the center of two sub-districts, two UE offices, mutual isolation is fine, then base station dispatcher can be dispatched simultaneously for two UE, to improve throughput; And when two UE are in cell boarder and vicinity, the isolation variation of two UE, this moment, base station dispatcher can carry out the timesharing scheduling to two UE, to reduce by two interference levels between the UE.
As seen from the above-described embodiment, the present invention is by carrying out at UE in the professional process, the base station the UE current service cell, and corresponding adjacent sub-district detect the signal strength signal intensity of this UE respectively, obtain the signal strength signal intensity of UE by RNC according to reporting of base station then in each sub-district, and unite estimation in the signal strength signal intensity of each sub-district according to UE, judge the relative position of UE, thereby provide foundation for more accurate RRM.
To can solve the corresponding techniques problem under technical solution of the present invention application and the existing various concrete application scenarioss.For example: can solve in the TFFR algorithm insert at random and link maintenance process in corresponding problem, be the UE power saving, save interface-free resources, reduce the probability that switches, the possibility of reduction call drop, and provide foundation for the adjustment of Radio Resource; Can improve the precision that switch the minizone, improve success rate for switching; And, utilize and can carry out combined dispatching to a plurality of sub-districts in the NB based on the UE location estimation of multi-plot joint channel estimating, reach the reduction co-channel interference, improve the purpose of edge customer throughput.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.All any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a method of carrying out RRM is characterized in that, comprising:
Carry out in the professional process at user terminal UE, the base station is detected the signal strength signal intensity of described UE at the neighbor cell of its current service cell and described current service cell respectively, and gives radio network controller (RNC) with the UE that detection obtains at the reporting signal strength of each sub-district;
RNC estimates the position of UE in the signal strength signal intensity of each sub-district according to described UE;
RNC carries out RRM according to the position of described UE.
2. method according to claim 1 is characterized in that:
Described UE carries out professional process: the random access procedure of UE;
Described base station is detected described UE respectively: the base station is measured the signal strength signal intensity of UE in the Random Access Channel of described each sub-district respectively;
Described RNC carries out RRM according to the position of described UE: RNC is the UE distributing radio resource according to the position of described UE.
3. method according to claim 2 is characterized in that:
Describedly comprise for the UE distributing radio resource: disturb less resource for the UE of the cylindrical that is in neighbor cell distributes.
4. method according to claim 3 is characterized in that:
Described UE for the cylindrical that is in neighbor cell distribute to disturb less resource to be: for the UE of the cylindrical that is in neighbor cell distributes the resource of different frequency or the resource of different time-gap.
5. method according to claim 1 is characterized in that:
Described UE carries out professional process: the link of UE keeps process;
Described base station is detected described UE respectively: the base station is measured in the signal strength signal intensity of described each sub-district UE in real time;
Described RNC carries out RRM according to the position of described UE: the position according to described UE is that UE carries out the resource adjustment.
6. method according to claim 1 is characterized in that:
Described UE carries out professional process: the minizone handoff procedure of UE;
Described base station is detected described UE respectively: the base station is measured in the signal strength signal intensity of described each sub-district UE in real time;
After base station measurement obtains the signal strength signal intensity of UE in described each sub-district, further comprise: the position of UE is estimated according to the result of described measurement in the base station, and with the position of the UE judgement foundation as the minizone switch decision of described UE.
7. method according to claim 1 is characterized in that, after the base station detection obtained the signal strength signal intensity of UE in described each sub-district, this method further comprised:
At each UE, the position of described UE is estimated in the base station in the signal strength signal intensity of each sub-district according to described UE; And, in all sub-districts that described base station is administered, UE is carried out combined dispatching according to the position of each UE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101177104A CN102196490A (en) | 2010-03-03 | 2010-03-03 | Wireless resource management method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101177104A CN102196490A (en) | 2010-03-03 | 2010-03-03 | Wireless resource management method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102196490A true CN102196490A (en) | 2011-09-21 |
Family
ID=44603710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101177104A Pending CN102196490A (en) | 2010-03-03 | 2010-03-03 | Wireless resource management method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102196490A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103747522A (en) * | 2013-12-31 | 2014-04-23 | 上海华为技术有限公司 | Method and equipment for acquiring positional information |
| CN104717748A (en) * | 2013-12-11 | 2015-06-17 | 北京三星通信技术研究有限公司 | Physical downlink control channel (PDCCH) resource allocation method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998053632A2 (en) * | 1997-05-21 | 1998-11-26 | Telefonaktiebolaget Lm Ericsson | Providing a neighborhood zone within a mobile telecommunications network |
| CN1437834A (en) * | 1999-12-29 | 2003-08-20 | 高通股份有限公司 | Improved soft handoff algorithm and wireless communication system for third generation CDMA systems |
| CN1852591A (en) * | 2005-10-31 | 2006-10-25 | 华为技术有限公司 | Method for positioning mobile terminal |
-
2010
- 2010-03-03 CN CN2010101177104A patent/CN102196490A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998053632A2 (en) * | 1997-05-21 | 1998-11-26 | Telefonaktiebolaget Lm Ericsson | Providing a neighborhood zone within a mobile telecommunications network |
| CN1437834A (en) * | 1999-12-29 | 2003-08-20 | 高通股份有限公司 | Improved soft handoff algorithm and wireless communication system for third generation CDMA systems |
| CN1852591A (en) * | 2005-10-31 | 2006-10-25 | 华为技术有限公司 | Method for positioning mobile terminal |
Non-Patent Citations (1)
| Title |
|---|
| 杨萍: "一种自动更新邻区列表的算法", 《实验科学与技术》, no. 1, 28 February 2006 (2006-02-28) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104717748A (en) * | 2013-12-11 | 2015-06-17 | 北京三星通信技术研究有限公司 | Physical downlink control channel (PDCCH) resource allocation method and device |
| CN103747522A (en) * | 2013-12-31 | 2014-04-23 | 上海华为技术有限公司 | Method and equipment for acquiring positional information |
| US9848402B2 (en) | 2013-12-31 | 2017-12-19 | Huawei Technologies Co., Ltd. | Method and device for collecting location information |
| US10111198B2 (en) | 2013-12-31 | 2018-10-23 | Huawei Technologies Co., Ltd. | Method and device for collecting location information |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103167551B (en) | A kind of method of reported by user equipment UE measurement result and subscriber equipment | |
| CN102711167B (en) | Method for measuring reference signal between UE (user equipment) and base station and base station | |
| CN103067864B (en) | A kind of changing method for group's monitoring users and terminal | |
| CN102088723B (en) | Method and device for determining high interference indication (HII) | |
| CN101370262B (en) | Neighbor section list updating method and system | |
| CN101945454B (en) | Wireless lan handover method and system | |
| CN103037399A (en) | Different frequency measurement configuration method and device | |
| EP3697125A1 (en) | Method and apparatus for measuring inter-frequency neighboring cell and user equipment thereof | |
| CN108347745B (en) | Mobile load balancing method and device | |
| CN101631351A (en) | Measurement control method | |
| CN102340815B (en) | Method, device and system for testing coverage performance of time division-synchronous code division multiple access (TD-SCDMA) network | |
| CN104869649A (en) | Method for configuring coordinated multiple point transmission multi-cell measurement pilot frequencies in LTE (Long Term Evolution) system | |
| CN101730129B (en) | Method, device and system for measuring Inter-RAT system | |
| CN103139825B (en) | Method, apparatus and its base station of edge customer division are carried out in LTE system | |
| CN102934486A (en) | Base station, mobile communication system, and base station call acceptance control method and program | |
| CN101583190A (en) | Method and system for determining position of user equipment | |
| CN103067959B (en) | Measure method and the user terminal of adjacent area | |
| CN102984722B (en) | Measuring and collocation method in interference coordination mechanism | |
| CN102076008B (en) | Method for scheduling measurement time of terminal, and terminal thereof | |
| CN107040969B (en) | Cell registration method and mobile terminal | |
| CN102196490A (en) | Wireless resource management method | |
| CN101415201B (en) | Method for judging signal quality | |
| CN103517441A (en) | Method of interference coordination among cells and system thereof | |
| CN103906127A (en) | Long term evolution network same-frequency neighbor cell measurement method and system | |
| CN103139829B (en) | Method, apparatus and its base station of edge customer division are carried out in LTE system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110921 |