CN103458435A - Interference channel avoidance method for common-frequency networking base stations - Google Patents
Interference channel avoidance method for common-frequency networking base stations Download PDFInfo
- Publication number
- CN103458435A CN103458435A CN2012101760277A CN201210176027A CN103458435A CN 103458435 A CN103458435 A CN 103458435A CN 2012101760277 A CN2012101760277 A CN 2012101760277A CN 201210176027 A CN201210176027 A CN 201210176027A CN 103458435 A CN103458435 A CN 103458435A
- Authority
- CN
- China
- Prior art keywords
- base station
- interference
- terminal
- interfered
- 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.)
- Pending
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides an interference channel avoidance method for common-frequency networking base stations. The interference channel avoidance method includes the steps that a, a terminal sends a terminal interference information report to a current base station, namely an interfered base station, after detecting the interference; b, after receiving the terminal interference information report, the interfered base station sends a base station interference information report to a common-frequency neighboring base station capable of being detected by the terminal; c, the common-frequency neighboring base station judges whether itself functions in interfering or not according to the base station interference information report received, if so, then sends base station interference response to the interfered base station; d, interference avoidance operation is performed after communication coordination between the interfered base station and the interfering base station. By the interference channel avoidance method, interference can be reduced effectively while effective use of channels can be guaranteed.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of preventing collision method of the interference channel for the identical networking base station.
Background technology
The frequency resource that mobile communication system is used is the limited resources by the management and control of country government, very valuable, therefore improves channeling efficiency particular importance during many base station networkings.The identical networking mode refers to that all communities of the whole network are used identical frequency.The identical networking advantage is that the frequency efficiency of frequency duplex factor as one N=1 is the highest, and frequency is disposed flexibly, and terminal band support demand is low, reduces the complexity of terminal radio frequency passage, reduces the terminal price.Shortcoming is to descend, thereby affect user awareness with the local area network capacity of the overlapping covering in base station frequently, covering quality.
Normal wireless communication system can run into interference miscellaneous, such as: interference in community, presence of intercell interference, multipath disturb, multiple access disturbs etc.But, in identical networking, frequency duplex factor as one is 1, self community all adopts unified identical frequency with neighbor cell on every side, and under same frequency, other communities of the whole network all can produce presence of intercell interference to self community.Problem of inter-cell interference when therefore wireless communication system must adopt effective technology to solve identical networking.
Summary of the invention
The object of the present invention is to provide a kind of identical networking base station detect interference channel and complete the method that interference channel is dodged, comprise the following steps:
A, after terminal detects interference, is the report of interfered base station transmitting terminal interfere information to current base station;
B, interfered base station is according to the terminal interfere information report of receiving, and transmission base station, the adjacent base station of the same frequency interfere information that can detect to described terminal is reported;
C, described base station interfere information report of receiving with frequently adjacent base station basis, judge whether oneself is interference base station, if so, to interfered base station, sends the base station disturbance response;
D, carry out the interference avoidance operation after interfered base station and interference base station communication negotiation.
Preferably, the report of the interfere information of terminal described in step a comprises the interference channel mask information, checks the channel mask in the base station interfere information report of receiving in step c by historical channel allocation situation with the adjacent base station of frequency, judges whether oneself is interference base station.
Preferably, after in step b, interfered base station is received the report of terminal interfere information, also the descending power of disturbed terminal is locked; After oneself being interference base station with the judgement of frequently adjacent base station in step c, also the descending power of interfered with terminal is locked.
Preferably, in steps d, describedly be operating as interfered base station and interference base station carries out the power adjustment, until described terminal is interference-free.Described operation can also, for interference channel only being distributed to the some base stations in interference base station and interference base station, further, can be distributed to interference channel the base station that bandwidth is inadequate.
Preferably, the inventive method also comprises: interference base station and interfered base station are all stored the resource allocation information of the terminal be disturbed, when a certain base station is wherein carried out the reprovision of resource or is discharged, whether the resource that the transmission related news notify the other side once to be disturbed is occupied, and divides timing regardless of joining the resource once be disturbed taken by the other side in follow-up resource.
Adopt beneficial effect of the present invention to be: by interfered base station and interference base station, to consult dodging of interference channel, and in distributing, follow-up resource avoids distributing occupied interference channel resource, can effectively reduce the generation of interference, guarantee again effective use of channel simultaneously.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of the identical networking communication network of the embodiment of the present invention one.
Embodiment
After main thought of the present invention is the terminal to report interfere information, interfered base station is to same adjacent base station broadcast interfere information frequently, it oneself is, after interference source, the interfere information of oneself response is sent to interfered base station that interference base station determines, interfered base station and interference base station both sides communicate and consult to take the interference avoidance operation, until terminal is interference-free.
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Embodiment mono-
The present embodiment adopts an identical networking communication network as shown in Figure 1, this communication network to include several with base station (BTS) frequently, several terminals (UT) is arranged below each base station.Wherein, BTS(n) be n base station, UT(n, k) be and BTS(n) k the terminal of communicating by letter, BTS(h), BTS(i), BTS(j), BTS(k), BTS(m) are all BTS(n) adjacent base station, UT(m, j) be and BTS(m) j the terminal of communicating by letter.
Because there is overlay area separately each base station, have unavoidably the overlapping of zone on adjacent border, UT(n, k) with BTS(n) while communicating by letter, some other base stations also can be detected, such as BTS(h), BTS(k) etc., by these UT(n, one group of base station that k) can detect is defined as OBS(n, k).BTS(n) and overlay area BTS(m) as shown in Fig. 1 dotted line circle, UT(n, k) and UT(m, j) overlapping area in two base stations, due to both sides base station be identical networking impact, UT(n, k) probably be subject to BTS(m) interference, UT(m, j) also may be subject to BTS(n) interference, if occur to disturb, this interference is embodied directly in UT(n, k) and UT(m, j) resource contention, be UT(m outwardly, j) to UT(n, k) produced interference, be actually BTS(m) to UT(n, k) produced interference.
The method of the present embodiment can effectively solve BTS(m) to UT(n, k) interference problem, specifically comprise the following steps:
A. work as UT(n, k) start the Interference Detection algorithm and confirm and be interfered after, at once to BTS(n) send a terminal interfere information report, this message report includes enough amount of information, for judgement, finds out interference source.The terminal interfere information report of the present embodiment has comprised the mask information of interference channel.
B.BTS(n) after receiving the interfere information report of terminal, process this report, increase some information, to adjacent base station OBS(n, k) send base station interfere information report.
C. suppose OBS(n, k) in BTS(m) received this report, can resolve at once this report, check the channel mask by historical channel allocation situation, judge whether it is oneself to have affected BTS(n) UT(n, k).If BTS(m) confirm it self is interference source, to BTS(n) transmission base station disturbance response.
D.BTS(m) after confirming self to be interference base station, BTS(m) and BTS(n) base station communicates after negotiation and takes the interference avoidance operation.The interference avoidance that the present embodiment is taked is operating as BTS(m) and BTS(n) according to negotiation result, carry out separately corresponding power adjustment, until UT(n, k) till interference-free impact.
Embodiment bis-
In embodiment mono-, steps d can also adopt according to actual conditions other interference avoidance operation.The operation of interference avoidance that the present embodiment two is taked is, BTS(m) and BTS(n) consult to distribute interference channel, if wherein a certain base station assigns interference channel, this interference channel is not just distributed in another base station, has so just fundamentally avoided interference.The present embodiment two has also adopted the algorithm of a fairness in negotiations process, interference channel is distributed to the base station that bandwidth is inadequate, if the bandwidth that oneself requires is inadequate, just require the terminal that allocated bandwidth is many to discharge interference channel, the allocated bandwidth that can guarantee like this each terminal is balanced, does not allow certain terminal occupied bandwidth too much.
Embodiment tri-
Take embodiment mono-as basis, in step b, BTS(n) after receiving the interfere information report of terminal, also has the operation of a power blockage, by the current terminal UT(n be disturbed, k) descending power pins, and after the descending power of the current terminal be disturbed is frozen, will ignore any power control command.It should be noted that it is only BTS(n) to current UT(n, the k be disturbed) descending power freeze, rather than all terminals are all freezed.In step c, BTS(m) after judging and oneself being interference base station, also by interfered with terminal UT(m, j) the descending power locking.Same, be only BTS(m) to current interfered with terminal UT(m, j) descending power freeze, rather than all terminals are all freezed.
Generally, when co-channel interference occurs, signal is certainly bad, and base station tends to improve signal conditioning by increasing transmitting power, but, for co-channel interference, increasing transmitting power can cause larger interference to others.So the present embodiment adopts the method for power blockage not carry out the power adjustment, can avoid stronger interference to occur, wait between adjacent base station and avoid through consultation interference channel to solve co-channel interference.
Embodiment tetra-
After the both sides that occur to disturb have solved interference problem, further, both sides are for fear of again disturbing, often the message of the mutual resource that once be disturbed.BTS(n for example) and BTS(m), on a certain resource X, occurred to disturb, after disturbing solution through consultation, both can know, when using resource X, easily and the other side produce interference, by upgrading timely information about resource X to the other side, just know each other whether the other side is using resource X, and then avoid the use of the resource of phase mutual interference, reduce the possibility that same interference occurs again.
The present embodiment be take embodiment mono-as basis, BTS(n) with by BTS(m) resource allocation information of the terminal that all storage is disturbed, when a certain base station is wherein carried out the reprovision of resource or is discharged, whether the resource that the transmission related news notify the other side once to be disturbed is occupied, and follow-up resource divide timing judge the other side whether before use both sides the resource of disturbing occurred, if using, oneself redistribute resource to terminal, if the other side is not using, when oneself prepares again to use, also, by lastest imformation, notify the other side, oneself will use this resource.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. the preventing collision method of the interference channel for the identical networking base station, is characterized in that, comprises the following steps:
A, after terminal detects interference, is the report of interfered base station transmitting terminal interfere information to current base station;
B, interfered base station is according to the terminal interfere information report of receiving, and transmission base station, the adjacent base station of the same frequency interfere information that can detect to described terminal is reported;
C, described base station interfere information report of receiving with frequently adjacent base station basis, judge whether oneself is interference base station, if so, to interfered base station, sends the base station disturbance response;
D, carry out the interference avoidance operation after interfered base station and interference base station communication negotiation.
2. method according to claim 1, it is characterized in that, the report of the interfere information of terminal described in step a comprises the interference channel mask information, check the channel mask in the base station interfere information report of receiving in step c with the adjacent base station of frequency by historical channel allocation situation, judge whether oneself is interference base station.
3. method according to claim 1, is characterized in that, after in step b, interfered base station is received the report of terminal interfere information, also the descending power of disturbed terminal locked; After oneself being interference base station with the judgement of frequently adjacent base station in step c, also the descending power of interfered with terminal is locked.
4. method according to claim 1, is characterized in that steps d, describedly is operating as interfered base station and interference base station carries out the power adjustment, until described terminal is interference-free.
5. method according to claim 1, is characterized in that steps d, and described being operating as only distributed to the some base stations in interference base station and interference base station by interference channel.
6. method according to claim 5, is characterized in that, interference channel is distributed to the base station that bandwidth is inadequate.
7. method according to claim 1, it is characterized in that, also comprise: interference base station and interfered base station are all stored the resource allocation information of the terminal be disturbed, when a certain base station is wherein carried out the reprovision of resource or is discharged, whether the resource that the transmission related news notify the other side once to be disturbed is occupied, and divides timing regardless of joining the resource once be disturbed taken by the other side in follow-up resource.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101760277A CN103458435A (en) | 2012-05-31 | 2012-05-31 | Interference channel avoidance method for common-frequency networking base stations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101760277A CN103458435A (en) | 2012-05-31 | 2012-05-31 | Interference channel avoidance method for common-frequency networking base stations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103458435A true CN103458435A (en) | 2013-12-18 |
Family
ID=49740300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101760277A Pending CN103458435A (en) | 2012-05-31 | 2012-05-31 | Interference channel avoidance method for common-frequency networking base stations |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103458435A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105323764A (en) * | 2015-10-30 | 2016-02-10 | 深圳市信锐网科技术有限公司 | Wireless channel occupation method and system, and wireless access point occupying wireless channel |
| WO2016065527A1 (en) * | 2014-10-28 | 2016-05-06 | 华为技术有限公司 | Data transmission method and device |
| CN108259112A (en) * | 2016-12-29 | 2018-07-06 | 中国移动通信集团浙江有限公司 | A kind of timeslot-based base station interference elimination method and device |
| WO2019179213A1 (en) * | 2018-03-23 | 2019-09-26 | 浙江汉朔电子科技有限公司 | Resource management method, related device and system, and storage medium |
| WO2020056703A1 (en) * | 2018-09-21 | 2020-03-26 | Qualcomm Incorporated | Remote interference management design introduction |
| EP4236186A3 (en) * | 2019-01-11 | 2023-11-15 | Apple Inc. | Network coordination for crosslink interference mitigation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101815301A (en) * | 2010-03-17 | 2010-08-25 | 华为技术有限公司 | Interference coordination method, system and apparatus |
| CN102186247A (en) * | 2011-05-05 | 2011-09-14 | 新邮通信设备有限公司 | Method and system for coordinating interference between cells |
| CN102448173A (en) * | 2010-09-30 | 2012-05-09 | 华为技术有限公司 | Resource coordination processing method, equipment and base station thereof |
-
2012
- 2012-05-31 CN CN2012101760277A patent/CN103458435A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101815301A (en) * | 2010-03-17 | 2010-08-25 | 华为技术有限公司 | Interference coordination method, system and apparatus |
| CN102448173A (en) * | 2010-09-30 | 2012-05-09 | 华为技术有限公司 | Resource coordination processing method, equipment and base station thereof |
| CN102186247A (en) * | 2011-05-05 | 2011-09-14 | 新邮通信设备有限公司 | Method and system for coordinating interference between cells |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10361829B2 (en) | 2014-10-28 | 2019-07-23 | Huawei Technologies Co., Ltd. | Data transmission method and device |
| WO2016065527A1 (en) * | 2014-10-28 | 2016-05-06 | 华为技术有限公司 | Data transmission method and device |
| CN105323764A (en) * | 2015-10-30 | 2016-02-10 | 深圳市信锐网科技术有限公司 | Wireless channel occupation method and system, and wireless access point occupying wireless channel |
| CN105323764B (en) * | 2015-10-30 | 2018-12-28 | 深圳市信锐网科技术有限公司 | Occupancy method, wireless access point and the system of wireless channel |
| CN108259112B (en) * | 2016-12-29 | 2020-03-24 | 中国移动通信集团浙江有限公司 | Method and device for eliminating base station interference based on time slot |
| CN108259112A (en) * | 2016-12-29 | 2018-07-06 | 中国移动通信集团浙江有限公司 | A kind of timeslot-based base station interference elimination method and device |
| WO2019179213A1 (en) * | 2018-03-23 | 2019-09-26 | 浙江汉朔电子科技有限公司 | Resource management method, related device and system, and storage medium |
| WO2020056703A1 (en) * | 2018-09-21 | 2020-03-26 | Qualcomm Incorporated | Remote interference management design introduction |
| WO2020057621A1 (en) * | 2018-09-21 | 2020-03-26 | Qualcomm Incorporated | Remote interference management design |
| CN112703784A (en) * | 2018-09-21 | 2021-04-23 | 高通股份有限公司 | Remote interference management design |
| CN112703784B (en) * | 2018-09-21 | 2024-03-22 | 高通股份有限公司 | Remote interference management design |
| EP4236186A3 (en) * | 2019-01-11 | 2023-11-15 | Apple Inc. | Network coordination for crosslink interference mitigation |
| US12004088B2 (en) | 2019-01-11 | 2024-06-04 | Apple Inc. | Network coordination for crosslink interference mitigation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104410975B (en) | Resource allocation method, system, the equipment and terminal with base station functions | |
| US9319886B2 (en) | Method for efficient channel use | |
| KR100730620B1 (en) | Time slot allocation method, signal transmission method, mobile base station control apparatus, mobile base station, and mobile station in mobile communication | |
| Ghassemi et al. | Cognitive radio for smart grid communications | |
| US11012930B2 (en) | Dynamic spectrum resource allocation for full spectrum sharing | |
| EP2215753B1 (en) | Inter-system interference control | |
| EP3226445A1 (en) | Channel detection method and system, device having functions of base station, and terminal | |
| CN103458435A (en) | Interference channel avoidance method for common-frequency networking base stations | |
| CN108289336A (en) | Interference elimination method and device | |
| CN103369611A (en) | A random access processing method, switch processing method, and apparatus | |
| CN104756543A (en) | Multichannel wireless communication system, base station, and method for using channel | |
| EP2887737B1 (en) | Handover control in a cognitive radio system based on spectrum reconfiguration information of a target cell | |
| CN108307460A (en) | A kind of cell switching method, terminal and base station | |
| EP4057667A1 (en) | Method for controlling active room distribution system, electronic device, and storage medium | |
| CN104270767A (en) | Method suitable for enabling wireless power private network to be broadband | |
| CN110024462A (en) | Transmitting device, method and communication system based on dynamic Time Division duplex | |
| CN103220111B (en) | A kind of method and apparatus that the carrier resource of common signal channel is allocated | |
| CN103379647B (en) | A kind of cell carrier method of adjustment of heterogeneous network and heterogeneous network | |
| WO2013123638A1 (en) | Methods and apparatus for interference management | |
| US8442133B2 (en) | Apparatus and method for transmitting coexistence beacon protocol packet in cognitive radio wireless communication system | |
| CN102215594B (en) | Dispatching method and device | |
| CN104980936A (en) | Method, equipment and system for sharing frequency band | |
| US9125232B2 (en) | Base station, communication system, and wireless resource allocation method | |
| CN114258049B (en) | Passive intermodulation interference suppression method, terminal, base station and storage medium | |
| CN103391551B (en) | In a kind of terminal the interference band of mutual interference report, method of reseptance and device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131218 |