CN101553035A - Distribution method of time frequency resources - Google Patents
Distribution method of time frequency resources Download PDFInfo
- Publication number
- CN101553035A CN101553035A CNA2008100898546A CN200810089854A CN101553035A CN 101553035 A CN101553035 A CN 101553035A CN A2008100898546 A CNA2008100898546 A CN A2008100898546A CN 200810089854 A CN200810089854 A CN 200810089854A CN 101553035 A CN101553035 A CN 101553035A
- Authority
- CN
- China
- Prior art keywords
- terminal
- base station
- interfered
- running time
- frequency resource
- 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.)
- Granted
Links
Images
Abstract
The invention discloses a distribution method of time frequency resources, comprising the following steps: step 1, a base station A obtains the relative information of an interfering terminal which interferes an interfered terminal greater than a specific threshold, wherein the base station A provides service for the interfered terminal, and the base station A transmits the relative information of the time frequency resources occupied by the interfered terminal and the relative information of the interfering terminal to a base station B serving for the interference terminal; and, step 2, the base station B distributes time frequency resources different from the time frequency resources occupied by the interfered terminal for the interfering terminal, according to the relative information of the time frequency resources occupied by the interfered terminal and the relative information of the interfering terminal. The invention is capable of avoiding the larger interference from the users at the boundaries of different cells.
Description
Technical field
The present invention relates to the communications field, relate more specifically to a kind of distribution method of time frequency resources.
Background technology
Orthogonal frequency division multiple access system with it than higher spectrum utilization efficiency and relative simple receiving system, just progressively be accepted as 3 generations of back and 4 generation wireless communication system technologies, as 802.16e, Long Term Evolution (Long Term Evolution is called for short LTE) system.In orthogonal frequency division multiple access system, user in the sub-district is because the orthogonality between the user is disturbed very little.Main interference source is in the presence of intercell interference of networking, and when especially the multiplexing coefficient of frequency of utilization was 1, interference ratio was more serious between the neighbor cell.As shown in Figure 1, user 2 and user 3 be because belong to same sub-district, do not use identical running time-frequency resource between therefore, but user 1 belongs to different sub-districts with user 2,3, so have overlapping running time-frequency resource between the user 1 and 2,3.The scheme that reduces area interference generally has 3 kinds: area interference inhibition, coordinating district interference and area interference albefaction.
In existing coordinating district interference method, with the sub-district layering, be edge, sub-district reservation of resource, only use partial frequency spectrum resource wherein, by coordinating to use the different spectral resource to reach the effect that reduces area interference between the sub-district.The shortcoming of this scheme is: (1) therefore is difficult to determine reserve how many resources for the edge, sub-district because edge, sub-district number of users is not to fix.(2) owing to the inaccuracy of user mobility and customer location estimation, cause being difficult to judge whether the user has arrived the edge, sub-district, thereby distribute the frequency spectrum resource of reservation for the user.
Summary of the invention
One or more problems in view of the above the invention provides a kind of distribution method of time frequency resources, form bigger interference with the user who avoids different districts each other at the cell edge place.
Distribution method of time frequency resources according to the embodiment of the invention, may further comprise the steps: step 1, base station A obtains the interference of the disturbed terminal that service is provided by it relevant information greater than the interfered with terminal of certain threshold, and the relevant information of the running time-frequency resource that disturbed terminal is taken and the relevant information of interfered with terminal are sent to the base station B that serves interfered with terminal; And step 2, the relevant information of the running time-frequency resource that base station B takies according to disturbed terminal and the relevant information of interfered with terminal are the different running time-frequency resource of running time-frequency resource that interfered with terminal is distributed and disturbed terminal takies.
Wherein, step 1 comprises: base station A is by calculating the interference power of one or more interfered with terminal to disturbed terminal, finds out the interference of the disturbed terminal interfered with terminal greater than certain threshold; The relevant information of the running time-frequency resource that the running time-frequency resource that base station A obtains is that interfered with terminal takies, take with disturbed terminal is overlapping; And the relevant information of the overlapping running time-frequency resource of the relevant information of base station A running time-frequency resource that disturbed terminal is taken and interfered with terminal running time-frequency resource that take, that take with disturbed terminal is sent to base station B.
Wherein, step 2 comprises: the relevant information of the running time-frequency resource that running time-frequency resource that base station B takies according to interfered with terminal, that take with disturbed terminal is overlapping, find out disturbed terminal; And the relevant information of the running time-frequency resource that takies according to disturbed terminal of base station B, be the different running time-frequency resource of running time-frequency resource that interfered with terminal is distributed and disturbed terminal takies.
Distribution method of time frequency resources according to the embodiment of the invention also comprises: base station A calculates and to provide the carrier-in-interference noise ratio of each user terminal of service by it, and with the carrier-in-interference noise ratio less than the user terminal of another certain threshold as disturbed terminal.
Wherein, the distribution method of time frequency resources according to the embodiment of the invention goes for orthogonal frequency division multiple access system.More specifically, the distribution method of time frequency resources according to the embodiment of the invention is applicable to WiMax system.
By the present invention, can avoid the user of different districts to form bigger interference each other at the cell edge place.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram that CU Radio Resource and inter-cell user are disturbed;
Fig. 2 is the schematic diagram that inter-cell user is disturbed;
Fig. 3 is the Tile structure of WiMAX agreement regulation;
Fig. 4 is the schematic flow sheet that user's Interference Detection and interference coordination are handled between uplink cells.
Embodiment
Interference between the terminal is relevant with the power of terminal, is not all to be strong jamming between all users of different districts, and the user who has only different districts is using identical running time-frequency resource and just can form bigger interference each other during at cell edge.As shown in Figure 1 and Figure 2:
User 1 is the user of base station 1, and user 2 is users of base station 2, and user 3 is users of base station 2, has the part running time-frequency resource overlapping between them.For example, if be analytic target with base station 1, then base station 2 is the interfered cell of base station 1.Can see that on scheming user 1 and user 2 be at the cell edge place, user 1 and user 2 are more approaching to the distance of base station 1, thus 2 couples of users 1 of user interference ratio bigger.User 3 is 11 far away from the base station than user 1 from the base station, so 3 couples of users' 1 of user interference ratio is less.
Fig. 1 represents the running time-frequency resource that user 1, user 2 and user 3 use.As we can see from the figure, user 2 and 3 belongs to a user sector (segment), does not certainly have resource contention, but user 2 and user 3 have the running time-frequency resource identical with user 1.
For above-mentioned phenomenon, the invention provides a kind of new distribution method of time frequency resources.In distribution method of time frequency resources, be subjected to the seriousness that the adjacent area user disturbs according to the user, for the user selects to be subjected to the less running time-frequency resource of adjacent area user's interference ratio according to the embodiment of the invention.Concrete steps are as follows: lower user estimates to be subjected to the power that disturb other adjacent areas for carrier-in-interference signal to noise ratio (CINR); Select the adjacent area user that interference power surpasses thresholding; The time-frequency region that the base station notifies this neighbor base station to be interfered; Base station and neighbor base station are known the user who interferes with each other according to the position of disturbing the time-frequency district; Base station and neighbor base station are worked in coordination with allocation of radio resources, are that two users distribute different time-frequency region.
Be that example is elaborated (detailed process as shown in Figure 4) to the specific embodiment of the present invention with micro-wave access global inter communication (Worldwide Interoperability forMicrowave Access is called for short WiMAX) system below.Suppose that the base station 1 among Fig. 2 (sector number IDCELL=0) and base station 2 (sector number IDCELL=1) all is the parton carrier mode (PUSC) of 10MHz.Wherein, the uplink sub-carrier allocation of parameters ULPERMUBASE=0 of base station 1, the uplink sub-carrier allocation of parameters ULPERMUBASE=1 of base station 2.User 1 belongs to base station 1, has used subchannel 0.User 2 belongs to base station 2, has used subchannel 31, and user 3 belongs to base station 2, has used subchannel 6.
According to agreement, the least unit that up time-frequency distributes is 4 subcarrier * 3 symbols (as shown in Figure 3), is called a piece (tile) in the middle of the agreement.On be about to 840 subcarriers and be divided into 210 tiles.Each subchannel comprises 6 tiles, and wherein which tiles each subchannel comprises and determined by ULPERMUBASE.Regulation according to agreement can calculate:
The user 1
ULPERMUBASE=0, subchannel=0,
Take Tile:11,54,82,137,173,184;
The user 2
ULPERMUBASE=1, subchannel=31,
Take Tile:11,42,99,124,152,195;
The user 3
ULPERMUBASE=1, subchannel=6,
Take Tile:31,43,75,108,154,184.
User 1 and user 2 have a tile overlapping fully (Tile11).User 1 and user 3 also have a Tile overlapping fully (Tile184).
In addition, according to agreement, for different base station, pilot frequency sequence is different, and the parameter sector numbering (IDCELL) of pilot frequency sequence and base station is relevant, and the pilot frequency sequence between the different I DCELL has reasonable correlation properties.Received signal is relevant with the adjacent area pilot frequency sequence, and the power that obtains can roughly reflect the interference power of adjacent area.With the said system is example, and user 1 is because Tile11 and Tile184 are interfered, so CINR is lower.The reception pilot tone of this two Tile and adjacent area reference pilot are carried out relevant, obtain power P 1 and P2.Because it is more serious that user 3 relative users 2 disturb, so P1＞P2.Therefore, can draw user 1 is subjected to the adjacent area to disturb the most serious is Tile11.
The Tile label (11,54,82,137,173,184) that BS1 uses user 1, and the label of the Tile that is interfered information such as (11) notifies BS2 to carry out interference coordination by the passage between the BS.
BS2 receives that the Tile label that BS1 is interfered is 11, according to allocation of radio resources, can know that user 2 has used Tile11, therefore need make user 2 use other subchannels, allows user 2 avoid Tile (11,54,82,137,173,184).
The above is embodiments of the invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (6)
1. a distribution method of time frequency resources is characterized in that, may further comprise the steps:
Step 1, base station A obtains the interference of the disturbed terminal that service is provided by it relevant information greater than the interfered with terminal of certain threshold, and the relevant information of the running time-frequency resource that described disturbed terminal is taken and the relevant information of described interfered with terminal are sent to the base station B that serves described interfered with terminal; And
Step 2, the relevant information of the running time-frequency resource that described base station B takies according to described disturbed terminal and the relevant information of described interfered with terminal are the different running time-frequency resource of running time-frequency resource that described interfered with terminal is distributed and described disturbed terminal takies.
2. distribution method of time frequency resources according to claim 1 is characterized in that, described step 1 comprises:
Described base station A is by calculating the interference power of one or more interfered with terminal to described disturbed terminal, finds out the interference of the described disturbed terminal described interfered with terminal greater than described certain threshold;
The relevant information of the running time-frequency resource that the running time-frequency resource that described base station A obtains is that described interfered with terminal takies, take with described disturbed terminal is overlapping; And
The relevant information of the running time-frequency resource that running time-frequency resource that the relevant information of the running time-frequency resource that described base station A takies described disturbed terminal and described interfered with terminal take, that take with described disturbed terminal is overlapping is sent to described base station B.
3. distribution method of time frequency resources according to claim 2 is characterized in that, described step 2 comprises:
The relevant information of the running time-frequency resource that running time-frequency resource that described base station B takies according to described interfered with terminal, that take with described disturbed terminal is overlapping is found out described disturbed terminal; And
The relevant information of the running time-frequency resource that described base station B takies according to described disturbed terminal is the different running time-frequency resource of running time-frequency resource that described interfered with terminal is distributed and described disturbed terminal takies.
4. distribution method of time frequency resources according to claim 3 is characterized in that, also comprises:
Described base station A calculates and provides the carrier-in-interference noise ratio of each user terminal of service by it, and with the carrier-in-interference noise ratio less than the user terminal of another certain threshold as described disturbed terminal.
5. according to each described distribution method of time frequency resources in the claim 1 to 3, it is characterized in that described method is applicable to orthogonal frequency division multiple access system.
6. according to each described distribution method of time frequency resources in the claim 1 to 3, it is characterized in that described method is applicable to WiMax system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100898546A CN101553035B (en) | 2008-04-03 | 2008-04-03 | Distribution method of time frequency resources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100898546A CN101553035B (en) | 2008-04-03 | 2008-04-03 | Distribution method of time frequency resources |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101553035A true CN101553035A (en) | 2009-10-07 |
| CN101553035B CN101553035B (en) | 2011-09-21 |
Family
ID=41156943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100898546A Active CN101553035B (en) | 2008-04-03 | 2008-04-03 | Distribution method of time frequency resources |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101553035B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102045856A (en) * | 2009-10-14 | 2011-05-04 | 上海贝尔股份有限公司 | Signal receiving method and equipment thereof |
| CN102088780A (en) * | 2009-12-03 | 2011-06-08 | 电信科学技术研究院 | Method and base station for avoiding signal interference in hierarchical network |
| CN102186155A (en) * | 2011-05-03 | 2011-09-14 | 中兴通讯股份有限公司 | Interactive method and system for intercell information |
| CN102215533A (en) * | 2010-04-02 | 2011-10-12 | 电信科学技术研究院 | Method and equipment for coordinating interference on control channel in heterogeneous system |
| CN102238582A (en) * | 2010-04-23 | 2011-11-09 | 电信科学技术研究院 | Method for determining neighboring cell interference, system and apparatus thereof |
| CN102316588A (en) * | 2010-06-18 | 2012-01-11 | 英特尔移动通信技术有限公司 | Communication terminal, communication equipment, data communications method and frequency allocation method |
| CN102711258A (en) * | 2011-03-28 | 2012-10-03 | 华为技术有限公司 | Method and device for avoiding inter-cell interference |
| CN102118800B (en) * | 2010-01-04 | 2013-08-14 | 中国移动通信集团公司 | Resource scheduling method on basis of interference and macro base station |
| CN106851660A (en) * | 2016-12-29 | 2017-06-13 | 上海华为技术有限公司 | A kind of signal interference detecting method, base station and user equipment |
| WO2018036305A1 (en) * | 2016-08-21 | 2018-03-01 | 华为技术有限公司 | Method and equipment for full-duplex channel interference |
| CN108633017A (en) * | 2017-03-23 | 2018-10-09 | 中兴通讯股份有限公司 | Resource allocation methods, base station, mobile terminal and communication control method and its system |
| WO2019137536A1 (en) * | 2018-01-12 | 2019-07-18 | 华为技术有限公司 | Resource determining method and device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4640855B2 (en) * | 2005-02-18 | 2011-03-02 | 富士通株式会社 | Base station and interference reduction method in the base station |
| CN100559739C (en) * | 2005-09-01 | 2009-11-11 | 大唐移动通信设备有限公司 | The method that cross time slot resource distributes in the TDD-CDMA system |
-
2008
- 2008-04-03 CN CN2008100898546A patent/CN101553035B/en active Active
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102045856A (en) * | 2009-10-14 | 2011-05-04 | 上海贝尔股份有限公司 | Signal receiving method and equipment thereof |
| CN102045856B (en) * | 2009-10-14 | 2013-09-11 | 上海贝尔股份有限公司 | Signal receiving method and equipment thereof |
| CN102088780A (en) * | 2009-12-03 | 2011-06-08 | 电信科学技术研究院 | Method and base station for avoiding signal interference in hierarchical network |
| WO2011066787A1 (en) * | 2009-12-03 | 2011-06-09 | 电信科学技术研究院 | Method and base station for avoiding signal interference in a layered network |
| CN102088780B (en) * | 2009-12-03 | 2013-11-06 | 电信科学技术研究院 | Method and base station for avoiding signal interference in hierarchical network |
| CN102118800B (en) * | 2010-01-04 | 2013-08-14 | 中国移动通信集团公司 | Resource scheduling method on basis of interference and macro base station |
| CN102215533A (en) * | 2010-04-02 | 2011-10-12 | 电信科学技术研究院 | Method and equipment for coordinating interference on control channel in heterogeneous system |
| CN102238582A (en) * | 2010-04-23 | 2011-11-09 | 电信科学技术研究院 | Method for determining neighboring cell interference, system and apparatus thereof |
| CN102316588A (en) * | 2010-06-18 | 2012-01-11 | 英特尔移动通信技术有限公司 | Communication terminal, communication equipment, data communications method and frequency allocation method |
| CN102316588B (en) * | 2010-06-18 | 2014-12-31 | 英特尔移动通信有限责任公司 | User equipment, base station, method for data communication, and method for frequency allocation |
| US9025529B2 (en) | 2010-06-18 | 2015-05-05 | Intel Mobile Communications GmbH | Communication terminal, communication device, method for data communication, and method for frequency allocation |
| WO2012129903A1 (en) * | 2011-03-28 | 2012-10-04 | 华为技术有限公司 | Method and device for preventing inter-cell interference |
| CN102711258A (en) * | 2011-03-28 | 2012-10-03 | 华为技术有限公司 | Method and device for avoiding inter-cell interference |
| CN102711258B (en) * | 2011-03-28 | 2014-12-24 | 华为技术有限公司 | Method and device for avoiding inter-cell interference |
| WO2012149825A1 (en) * | 2011-05-03 | 2012-11-08 | 中兴通讯股份有限公司 | Method and system for information interaction between cells |
| CN102186155A (en) * | 2011-05-03 | 2011-09-14 | 中兴通讯股份有限公司 | Interactive method and system for intercell information |
| WO2018036305A1 (en) * | 2016-08-21 | 2018-03-01 | 华为技术有限公司 | Method and equipment for full-duplex channel interference |
| CN107769884A (en) * | 2016-08-21 | 2018-03-06 | 华为技术有限公司 | The method and apparatus of full-duplex channel interference control |
| CN107769884B (en) * | 2016-08-21 | 2019-10-15 | 华为技术有限公司 | The method and apparatus of full-duplex channel interference control |
| CN106851660A (en) * | 2016-12-29 | 2017-06-13 | 上海华为技术有限公司 | A kind of signal interference detecting method, base station and user equipment |
| CN106851660B (en) * | 2016-12-29 | 2020-12-08 | 上海华为技术有限公司 | Signal interference measurement method, base station and user equipment |
| CN108633017A (en) * | 2017-03-23 | 2018-10-09 | 中兴通讯股份有限公司 | Resource allocation methods, base station, mobile terminal and communication control method and its system |
| CN108633017B (en) * | 2017-03-23 | 2022-11-18 | 中兴通讯股份有限公司 | Resource allocation method, base station, mobile terminal, communication control method and system thereof |
| WO2019137536A1 (en) * | 2018-01-12 | 2019-07-18 | 华为技术有限公司 | Resource determining method and device |
| CN110035444A (en) * | 2018-01-12 | 2019-07-19 | 华为技术有限公司 | A kind of method and apparatus that resource determines |
| CN110035444B (en) * | 2018-01-12 | 2021-11-30 | 华为技术有限公司 | Resource determination method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101553035B (en) | 2011-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101553035B (en) | Distribution method of time frequency resources | |
| USRE49804E1 (en) | Reference signal interference management in heterogeneous network deployments | |
| US10687326B2 (en) | Intercell interference coordination accounting for machine type communication | |
| Hoymann et al. | A lean carrier for LTE | |
| CN104938013B (en) | The method and apparatus for using ICIC mechanism in the cellular system | |
| CN103430617B (en) | The system and method transmitted in communication system and receive control channel | |
| CN102282793B (en) | Method and apparatus for transmitting overload indicator over the air | |
| CN101304272B (en) | Method and base station equipment for inhibiting ascending interference between subdistricts | |
| CN102348216B (en) | A kind of interference processing method and device | |
| Oh et al. | Resource allocation with partitioning criterion for macro-femto overlay cellular networks with fractional frequency reuse | |
| CN101827370A (en) | Frequency reuse control method, system and base station equipment based on OFDM (Orthogonal Frequency Division Multiplexing) | |
| CN101489231B (en) | Inter cell interference control method and apparatus in wireless communication network | |
| CN102036249B (en) | Inter-cell interference coordination method and base station | |
| EP2243225A1 (en) | System and method for spatial multiplexing-based multiple antenna broadcast/multicast transmission | |
| CN103402239A (en) | Information on reference signal structure for neighbouring cell measurements | |
| CN103702430A (en) | Method for multi-stage soft time-frequency multiplexing and resource allocation, equipment and a system | |
| CN102246571B (en) | Resource regulating method, scheduler and base station | |
| CN102264123B (en) | Method and device for distributing PDSCH (physical downlink shared channel) power | |
| CN104488201B (en) | Method and apparatus for sending and receiving signal in a wireless communication system | |
| CN103379647B (en) | A kind of cell carrier method of adjustment of heterogeneous network and heterogeneous network | |
| CN101828414B (en) | Downlink transmission system of borrowing frequency spectrum and channel resource of adjacent cells and method and terminal thereof | |
| CN102905370A (en) | System and method for implementation of control channel resource allocation | |
| CN102711258B (en) | Method and device for avoiding inter-cell interference | |
| US10499258B2 (en) | Using a geometry indicator in HetNet deployments | |
| Gajewski | Throughput-coverage characteristics for soft and Partial Frequency Reuse in the LTE downlink |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |