CN103024916B - A kind of method and apparatus determining uplink interference terminal - Google Patents
A kind of method and apparatus determining uplink interference terminal Download PDFInfo
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- CN103024916B CN103024916B CN201110288701.6A CN201110288701A CN103024916B CN 103024916 B CN103024916 B CN 103024916B CN 201110288701 A CN201110288701 A CN 201110288701A CN 103024916 B CN103024916 B CN 103024916B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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Abstract
The invention discloses a kind of method determining uplink interference terminal, comprise step: 1) the first base station is when measuring ascending physical signal Resource Block load information, record uplink interference generation time; 2) the first base station adds the interference generation time information corresponding with described ascending physical signal Resource Block interfere information in interfere information Indication message, and described interfere information Indication message is sent to the second base station; 3) terminal that described ascending physical signal Resource Block is corresponding is confirmed by the distribution of Physical Resource Block on the temporal information in described interfere information Indication message and this time point in the second base station.The present invention introduces temporal information in interfere information Indication message, uniquely can confirm which terminal ascending resource distributes to by the distribution of Physical Resource Block in temporal information and this time point, thus confirm the identity of uplink interference terminal, thus lay the first stone for follow-up scheduling.
Description
Technical field
The present invention relates to the resource adaptation mechanism in the communications field, specifically a kind of method and apparatus determining generation inter-cell uplink interference terminal.
Background technology
The heterogeneous network coordination system based on carrier aggregation is being discussed in current 3GPP, is mainly referring to when applying carrier aggregation in future network after, the distribution how in coordination network between different carrier, thus the interference of reduction intercarrier.Wherein, the interference between macro base station and micro-base station is a problem of everybody extensive concern.
When macro base station community and micro-base station cell use carrier aggregation technology respectively, the terminal of two cell edges can pass through the distribution coordinating carrier wave, to reduce the interference of minizone.As shown in Figure 1, when grand terminal is resident on carrier wave 3 and 4, larger interference can be produced to micro-base station, now grand terminal can be moved on on carrier wave 1 and 2, thus while guarantee Consumer's Experience, reduce interference.
By analyzing further and can understanding, because terminal can solve descending interference problem by schemes such as power controls, or when micro-base station downlink signal is stronger, be switched to micro-base station.Therefore uplink interference is principal concern.
Because macro base station is different from micro-base station transmitting power, therefore coverage is different.Can ensure time descending that the transmitting power of terminal is more or less the same substantially, thus avoid the descending interference for neighbor cell terminal.And during up transmission, because terminal useful signal needs to be received by macro base station side joint, therefore can cause larger interference to adjacent micro-base station, as shown in Figure 2.
Although the scheme of the carrier aggregation described before can be passed through, terminal is adjusted to the less carrier wave of interference to avoid described interference, but because terminal is now connected to macro base station, therefore on the one hand micro-base station do not know which terminal of which macro base station uply causes interference for self; Macro base station and this terminal do not know that self causes interference for micro-base station yet on the one hand in addition.
Therefore how to determine that uplink interference terminal becomes a problem urgently to be resolved hurrily.
The scheme of existing this problem of solution has the following two kinds thinking:
Thinking 1: can by realize mode solve, namely micro-base station measurement go out uplink interference larger time, avoid dispatch terminal on this carrier resource; But the program limits the use of micro-base station for resource, the performance of resident terminal under have impact on micro-base station; Particularly when macro base station cell load is many, when needing micro-base station cell to carry out offload demand, when below so micro-base station, resident terminal is more, this method still can affect scheduling delay and service quality.
Thinking 2: macro base station understands the position of micro-base station by the mode of network management configuration, and pass through the position of the mode locating terminal of location, find out the terminal that may produce uplink interference for micro-base station, and carry out corresponding operating for it, as first-class in adjusted to corresponding carrier wave; But the shortcoming of which proposes higher demand for webmaster and positioning function, adds complexity.
Because existing solution is not ideal enough, therefore the present invention will propose a kind of discovery mechanism of new uplink interference terminal.
Summary of the invention
For the problems referred to above, the present invention aims to provide a kind of mechanism just can determining uplink interference terminal by means of only the information interaction between base station, and this mechanism can comparatively simply solve pinpointing the problems of uplink interference terminal.
According to an aspect of the present invention, a kind ofly determine that the method for uplink interference terminal comprises the following steps:
1) the first base station is when measuring ascending physical signal Resource Block load information, record uplink interference generation time; 2) the first base station adds the interference generation time information corresponding with described ascending physical signal Resource Block interfere information in interfere information Indication message, and described interfere information Indication message is sent to the second base station; 3) terminal that described ascending physical signal Resource Block is corresponding is confirmed by the distribution of Physical Resource Block on the temporal information in described interfere information Indication message and this time point in the second base station.
Especially, described first base station can be micro-base station, and described second base station can be macro base station.In other embodiments of the invention, the first base station and the second base station also can be Home eNodeB and micro-base station respectively.
Above-mentioned steps 2) in, first base station adds the interference generation time information corresponding with described ascending physical signal Resource Block interfere information and comprises in interfere information Indication message: one or several ascending physical signal Resource Block maximum for uplink interference adds the temporal information disturbed and produce, or adds the temporal information of interference generation for each instantaneous ascending physical signal Resource Block interference.
Wherein, described temporal information can be the absolute time stamp mark being accurate to millisecond, also can be SFN frame and subframe.
Wherein, described interfere information Indication message can be the Load information message in LTE system.
According to a further aspect in the invention, additionally providing a kind of device determining uplink interference terminal, comprising: uplink interference measurement module, for measuring ascending physical signal Resource Block load information, and recording uplink interference generation time simultaneously; Interfere information Indication message sending module, for adding the interference generation time information corresponding with described ascending physical signal Resource Block interfere information in interfere information Indication message, and sends described interfere information Indication message.Especially, said apparatus can be deployed in micro-base station.
According to a further aspect of the invention, additionally provide another kind and determine to comprise the device that upstream terminal disturbs: interfere information Indication message receiver module, for receiving the interfere information Indication message producing interference time with ascending physical signal Resource Block; Uplink interference terminal confirms module, for confirming by the distribution of Physical Resource Block on the temporal information in described interfere information Indication message and this time point the terminal that described ascending physical signal Resource Block is corresponding.Especially, said apparatus can be deployed in macro base station.
The present invention introduces temporal information in interfere information Indication message, uniquely can confirm which terminal ascending resource distributes to by the distribution of Physical Resource Block in temporal information and this time point, thus confirm the identity of uplink interference terminal, thus lay the first stone for follow-up scheduling.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 represents that minizone produces the schematic diagram of the reason of interference;
Fig. 2 represents that minizone produces the schematic diagram of the mechanism of interference;
Fig. 3 is the schematic diagram representing micro-base station and macro base station mutual ascending physical signal Resource Block interfere information Indication message.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
According to a preferred forms of the present invention, a kind ofly determine that the method for uplink interference terminal comprises the following steps: 1) the first base station is when measuring ascending physical signal Resource Block (PRB) load information, record uplink interference generation time; 2) the first base station adds the interference generation time information corresponding with described up PRB interfere information in interfere information Indication message, and described interfere information Indication message is sent to the second base station; 3) terminal that described up PRB is corresponding is confirmed by the distribution of PRB on the temporal information in described interfere information Indication message and this time point in the second base station.Below will be described in detail each step.
1. the first base station is when measuring up PRB load information, record uplink interference generation time.
In prior art, existing various ways can realize the measurement of base station to uplink interference PRB, also introduces to some extent, be therefore not described in detail in background technology part of the present invention.In this step, metering system is unimportant, the time that importantly record interference produces while measuring.
2. the first base station adds the interference generation time information corresponding with described up PRB interfere information in interfere information Indication message, and described interfere information Indication message is sent to the second base station.
This step is core of the present invention.In different communication networks, interfere information Indication message can be different signaling.Such as, in LTE system, can pass through between current base station each cell uplink PRB of LoadInformation (3GPP TS 36.423 v10.2.0) interacting message disturbed condition and the need of situation about avoiding, as shown in Figure 3.Mutual by this information, can determine that the interference which up PRB of neighbor cell is subject to is comparatively serious, thus as the reference of follow-up scheduling.In other system, also can transmit interfere information Indication message by other signalings, as base station configuration updating (eNB Configuration Update).Those skilled in the art will be understood that in different communication systems, and the interfere information Indication message of all right specialized designs other types, also can realize object of the present invention.
But current Load information is not real-time, interactive, but the statistical value of a period of time (such as 100ms), therefore cannot confirm it is which terminal causes comparatively serious uplink interference for micro-base station cell actually.
For LTE system, temporal information can be introduced in Load information or special interfere information Indication message, uniquely can confirm which terminal ascending resource distributes to by the distribution of PRB in temporal information and this time point, thus confirm the identity of uplink interference terminal.
Wherein, the design of concrete temporal information can be:
The interference mark of each temporal information each instantaneous PRB corresponding; Or
The time that during the statistics interference mark of the corresponding PRB of each or multiple temporal information bears results, one or several maximum uplink interference produce.
That is, for each instantaneous interference PRB joining day information, can confirm the interference time of each PRB like this, thus in subsequent step, confirm the terminal of each interference corresponding to PRB; Also can only for one or several PRB joining day information that interference is the most serious, thus only confirm to produce the most serious terminal of interference in subsequent step again, also can realize object of the present invention.
Wherein, the design form of temporal information can be the mode that absolute time stamp or System Frame Number (SFN) add subframe:
1) form of absolute time stamp, namely identifies the time of this uplink interference generation, as xx xx month xx day xx divides xx xx second millisecond by the form of absolute time.
Such as, in LTE system, joined by absolute timestamp information after in Load information message, new Load information message format can be: the PRB1 of feedback, interference rank: high, generation time: xx xx month xx day xx divides xx xx second millisecond.
2) SFN frame adds the form of subframe, in TDD communication, due to base station synchronization, so can determine by frame number the radio frames that this up PRB measures, owing to comprising 10 subframes in a radio frames, therefore uniquely confirmed the subframe position of transmission again by subframe numbers, just by the PRB resource location sent in No. PRB confirmation subframe, thus terminal identity can be confirmed subsequently.
SFN frame and subframe are joined after in Load information message, new Loadinformation message format can be: the PRB 1 of feedback, interference rank: high, generation time: SFNxx, subframe xx.
3. the terminal that described up PRB is corresponding is confirmed by the distribution of PRB on the temporal information in described interfere information Indication message and this time point in the second base station.
Producing interference generation time corresponding to the PRB that disturbs according to what obtain in step 2 with to facing community, can confirm from the distribution of PRB the terminal that each PRB is corresponding.In prior art, base station has possessed this ability, is not described in detail herein.
Those skilled in the art will be understood that as described by background technology part of the present invention, and a free-revving engine of the present invention to confirm macro base station suffered by micro-base station and the interference communicated between grand terminal.Therefore, in preferred embodiments more of the present invention, confirm that the first base station in the method for uplink interference terminal can be micro-base station, the second base station is then macro base station; Or the first base station can be Home eNodeB (or being called femto base station), the second Ze Shiwei base station, base station.
In order to implement said method, present invention also offers device corresponding thereto.The first device can be, but not limited to be arranged on micro-base station, mainly comprises uplink interference measurement module and interfere information Indication message sending module.Wherein:
Uplink interference measurement module is mainly used in measuring the up PRB this community being formed to interference, and the generation time of record interference simultaneously;
Interfere information Indication message sending module is mainly used in interfere information Indication message, add the interference generation time information corresponding with described up PRB, or in interfere information Indication message, only only add the interference generation time information that one or several the up PRB maximum with degree of disturbance is corresponding, and send described interfere information Indication message.
Wherein, described temporal information is the absolute time stamp mark or SFN frame and the subframe that are accurate to millisecond.Described interfere information Indication message can be Load information message.
The second device for real-time said method provided by the invention can be, but not limited to be arranged on macro base station, and this device comprises interfere information Indication message receiver module and uplink interference terminal confirms module.Wherein:
Interfere information Indication message receiver module, for receiving the interfere information Indication message producing interference time with up PRB;
Uplink interference terminal confirms module, for confirming by the distribution of PRB on the temporal information in described interfere information Indication message and this time point the terminal that described up PRB is corresponding.
Wherein, described temporal information is the absolute time stamp mark or SFN frame and the subframe that are accurate to millisecond.Described interfere information Indication message can be Load information message.
Claims (13)
1. determine a method for uplink interference terminal, it is characterized in that, comprise the following steps:
1) the first base station is when measuring ascending physical signal Resource Block load information, record uplink interference generation time;
2) the first base station adds the interference generation time information corresponding with described ascending physical signal Resource Block interfere information in interfere information Indication message, and described interfere information Indication message is sent to the second base station;
3) terminal that described ascending physical signal Resource Block is corresponding is confirmed by the distribution of Physical Resource Block on the temporal information in described interfere information Indication message and this time point in the second base station;
Described step 2) in, first base station adds the interference generation time information corresponding with described ascending physical signal Resource Block interfere information and comprises in interfere information Indication message: one or several ascending physical signal Resource Block maximum for uplink interference adds the temporal information disturbed and produce, or adds the temporal information of interference generation for each instantaneous ascending physical signal Resource Block interference.
2. method according to claim 1, is characterized in that, described interfere information Indication message is Load information message.
3. method according to claim 1, is characterized in that, described temporal information is the absolute time stamp mark being accurate to millisecond.
4. method according to claim 1, is characterized in that, described temporal information is SFN frame and subframe.
5. method according to claim 1, is characterized in that, described first Shi Wei base station, base station, and described second base station is macro base station; Or described first base station is Home eNodeB, the second Shi Wei base station, base station.
6. determine a device for uplink interference terminal, it is characterized in that, comprising:
Uplink interference measurement module, for measuring ascending physical signal Resource Block load information, and records uplink interference generation time simultaneously;
Interfere information Indication message sending module, for adding the interference generation time information corresponding with described ascending physical signal Resource Block interfere information in interfere information Indication message, and sends described interfere information Indication message;
Describedly in interfere information Indication message, add the interference generation time information corresponding with described ascending physical signal Resource Block interfere information comprise: one or several ascending physical signal Resource Block maximum for uplink interference adds the temporal information disturbed and produce, or add for each instantaneous ascending physical signal Resource Block interference the temporal information that interference produces.
7. device according to claim 6, is characterized in that, described temporal information is the absolute time stamp mark being accurate to millisecond.
8. device according to claim 6, is characterized in that, described temporal information is SFN frame and subframe.
9. device according to claim 6, is characterized in that, described interfere information Indication message is Load information message.
10. determine to it is characterized in that the device that upstream terminal disturbs, comprising:
Interfere information Indication message receiver module, for receiving the interfere information Indication message producing interference time with ascending physical signal Resource Block;
Uplink interference terminal confirms module, for confirming by the distribution of Physical Resource Block on the temporal information in described interfere information Indication message and this time point the terminal that described ascending physical signal Resource Block is corresponding, wherein, the interference mark of each temporal information each instantaneous ascending physical signal Resource Block corresponding; Or the time that during the statistics interference mark of the corresponding ascending physical signal Resource Block of each or multiple temporal information bears results, one or several maximum uplink interference produce.
11. devices according to claim 10, is characterized in that, described interfere information Indication message is Load information message.
12. devices according to claim 10, is characterized in that, described temporal information is the absolute time stamp mark being accurate to millisecond.
13. devices according to claim 10, is characterized in that, described interfere information Indication message is SFN frame and subframe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110288701.6A CN103024916B (en) | 2011-09-26 | 2011-09-26 | A kind of method and apparatus determining uplink interference terminal |
| PCT/CN2012/081475 WO2013044739A1 (en) | 2011-09-26 | 2012-09-17 | Method and device for determining uplink interference terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110288701.6A CN103024916B (en) | 2011-09-26 | 2011-09-26 | A kind of method and apparatus determining uplink interference terminal |
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| CN103024916B true CN103024916B (en) | 2015-10-07 |
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| CN103139917B (en) * | 2011-11-29 | 2017-12-12 | 中兴通讯股份有限公司 | Cause recognition methods, the apparatus and system of the user equipment of uplink interference |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101631351A (en) * | 2008-07-14 | 2010-01-20 | 中兴通讯股份有限公司 | Measurement control method |
| CN101742550A (en) * | 2008-11-06 | 2010-06-16 | 华为技术有限公司 | Method, related equipment and system for fixing user influencing neighbor cell |
| CN101854635A (en) * | 2009-04-03 | 2010-10-06 | 中兴通讯股份有限公司 | Method and system for transmitting intercell interference coordination indication information |
| CN102065488A (en) * | 2011-01-21 | 2011-05-18 | 新邮通信设备有限公司 | Optimized inter-cell interference coordination method and base station |
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| JP2003259414A (en) * | 2002-03-05 | 2003-09-12 | Sony Corp | Mobile station and mobile communication system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101631351A (en) * | 2008-07-14 | 2010-01-20 | 中兴通讯股份有限公司 | Measurement control method |
| CN101742550A (en) * | 2008-11-06 | 2010-06-16 | 华为技术有限公司 | Method, related equipment and system for fixing user influencing neighbor cell |
| CN101854635A (en) * | 2009-04-03 | 2010-10-06 | 中兴通讯股份有限公司 | Method and system for transmitting intercell interference coordination indication information |
| CN102065488A (en) * | 2011-01-21 | 2011-05-18 | 新邮通信设备有限公司 | Optimized inter-cell interference coordination method and base station |
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| WO2013044739A1 (en) | 2013-04-04 |
| CN103024916A (en) | 2013-04-03 |
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