CN105162549B - A kind of location-based CQI period modulations method and base station - Google Patents
A kind of location-based CQI period modulations method and base station Download PDFInfo
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- CN105162549B CN105162549B CN201510451701.1A CN201510451701A CN105162549B CN 105162549 B CN105162549 B CN 105162549B CN 201510451701 A CN201510451701 A CN 201510451701A CN 105162549 B CN105162549 B CN 105162549B
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- Quality & Reliability (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of location-based CQI period modulations method and base stations.Wherein the location-based CQI period modulations method includes the following steps：Receive the measurement report that user terminal is sent；Judge the type of measurement report；Judge corresponding transmission mode；By the type for measuring report and corresponding transmission mode classification adjustment CQI periods.By being based on, measurement report+transmission mode is better in UE, not good enough dynamic adjusts the CQI periods can preferably utilize frequency domain resource to the present invention.Resource shared by better CQI is saved, not good enough subscriber channel assessment accuracy is improved.
Description
Technical field
The present invention relates to a kind of location-based CQI period modulations method and base stations, belong to field of communication technology.
Background technology
In LTE (Long Term Evolution, long term evolution) system, CQI (Channel Quality
Indicator, channel quality instruction) on periodic report of calling the score reported with aperiodic, whether periodic report or it is aperiodic on
Report has the decision of RRC (Radio Resource Control, wireless heterogeneous networks) layer, and CQI report cycles are a cell-levels
Behavior.Facing to more and more LTE users, how entire cell is made rational planning for the CQI periods, how to be closed under different scenes
The assessment channel of reason, becomes important topic.The research of this project is conducive to the channel matter that all terminals are correctly assessed in base station
Amount gives suitable MCS (Modulation and Coding Scheme, modulation and coding strategy) scheduling of equal value, on the one hand
Resource, better reduction CQI is rationally utilized to report frequency, the not good enough CQI that increases reports frequency to promote accuracy.
The unified configuration cell-level CQI periods are unsatisfactory for user's actual environment of entire cell different zones, especially not good enough
More accurate channel estimating is needed when switching.
Invention content
The technical problem to be solved by the present invention is to：How by adjusting CQI periods trade mark preferably utilize frequency domain resource.
A kind of location-based CQI period modulations method of present invention offer and base station.
On the one hand, the present invention provides a kind of location-based CQI period modulations method, includes the following steps：
Receive the measurement report that user terminal is sent；
Judge the type of measurement report；
Judge corresponding transmission mode；
By the type for measuring report and corresponding transmission mode classification adjustment CQI periods.
Wherein more preferably, described the step of adjusting the CQI periods by the class area for measuring report and the classification of corresponding transmission mode
Including：
If it is based on the measurement report for closing GAP and be Open-Loop Spatial Multiplexing transmission mode, then base station is to user terminal
Send the first adjustment message in adjustment CQI periods.
Wherein more preferably, the first adjustment message is to elongate CQI report cycles.
Wherein more preferably, the CQI report cycles are adjusted to 160 milliseconds.
Wherein more preferably, described the step of adjusting the CQI periods by the class area for measuring report and the classification of corresponding transmission mode
Including：
If it is the measurement report based on closing GAP and it is not Open-Loop Spatial Multiplexing transmission mode, then continues to judge
The type of measurement report does not adjust the CQI periods, until transmission mode becomes Open-Loop Spatial Multiplexing transmission mode.
Wherein more preferably, described the step of adjusting the CQI periods by the class area for measuring report and the classification of corresponding transmission mode
Including：
If it is based on the measurement report for opening GAP and be dual-stream beamforming transmission mode, then base station is to user terminal
Send the second adjustment message for elongating the CQI periods.
Wherein more preferably, the second adjustment message is to shorten CQI report cycles.
Wherein more preferably, the CQI report cycles are 20 milliseconds.
Wherein more preferably, described the step of adjusting the CQI periods by the class area for measuring report and the classification of corresponding transmission mode
Including：
If it is the measurement report based on unlatching GAP and it is not dual-stream beamforming transmission mode, then continues to judge
The type of measurement report does not adjust the CQI periods, until transmission mode becomes dual-stream beamforming transmission mode.
Wherein more preferably, described the step of adjusting the CQI periods by the class area for measuring report and the classification of corresponding transmission mode
Including：
If after receiving the measurement report that user terminal is sent, neither dual-stream beamforming transmission mode is nor open loop
Spatial multiplexing transmission pattern does not adjust the CQI periods.
On the other hand, the present invention also provides a kind of base station, the above-mentioned CQI period modulation methods of the base station applies；It is described
Base station includes：
Measurement report receiving unit, measurement report detection unit, transmission mode detection unit and CQI cycle adjusting units；
The measurement report that user terminal is sent is received and is sent to measurement report detection by the measurement report receiving unit
Unit；
Testing result is simultaneously sent to transmission mode detection by the type of the measurement report detection unit detection measurement report
Unit；
Transmission mode detection unit detects current transmission mode and is sent to transmission mode and measurement report type CQI weeks
Phase adjustment unit；
CQI cycle adjusting units are by the type for measuring report and corresponding transmission mode classification adjustment CQI periods.
Location-based CQI period modulations method provided by the invention and base station, by being based on measurement report+transmission mode
Better in UE, the not good enough dynamic adjustment CQI periods can preferably utilize frequency domain resource.Resource shared by better CQI is saved, is carried
High not good enough subscriber channel assesses accuracy.
Description of the drawings
Fig. 1 is CQI period modulations method flow schematic diagram of the present invention；
Fig. 2 is adjustment CQI flow diagrams in base station of the present invention；
Fig. 3 is UE signaling processes schematic diagram between base station of the present invention and UE；
Fig. 4 is architecture of base station schematic diagram of the present invention.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is described in further detail.Implement below
Example is not limited to the scope of the present invention for illustrating the present invention.
As shown in Figure 1, the present invention provides a kind of location-based CQI period modulations method, this includes the following steps：It receives
The measurement report that user terminal is sent；Judge the type of measurement report；Judge corresponding transmission mode；By measure report type and
The corresponding transmission mode classification adjustment CQI periods.Location-based CQI period modulations method provided by the invention is unfolded below
Detailed description.
UE measurement reports are that RRM carries out relevant control (power control, RB dynamic controls, switching control and Radio Link prison
Control etc.) important evidence, and foundation can be provided for the subsequent network planning, the network optimization.UE leaves current frequency point to other frequencies
The period that point measures, UE measurement reports are used for different-frequency measure and isosystem measurement.When needing to carry out alien frequencies or isosystem measurement
When, eNodeB will issue UE measurement report relevant configurations, and UE will start UE measurement reports according to the configuration instruction of eNodeB.
Such as Fig. 1, shown in Fig. 2, after base station receives the measurement report of UE transmissions, the type of measurement report is first judged, then determine
Current transmission mode.As shown in figure 3, if the measurement report type that base station receives is to open the measurement report (A2) of GAP,
Prove that UE is moved to almost, base station needs to judge that current transmission mode is dual-stream beamforming transmission mode (TM8) at this time；
If current transmission mode is dual-stream beamforming transmission mode, base station sends CQI to UE and adjusts message, and UE is sent by base station
CQI adjustment message shorten the CQI periods (by CQI period modulations be 20ms).It is assigned if current transmission mode is not double-current wave beam
Shape transmission mode is reported and is not dual-stream beamforming transmission mode, then continues the type for judging measurement report, do not adjust
The CQI periods, until transmission mode becomes dual-stream beamforming transmission mode.
As shown in figure 3, if the measurement report type that base station receives is to close the measurement report (A1) of GAP, UE is proved
Better in being moved to, base station needs to judge that current transmission mode is dual-stream beamforming transmission mode (TM3) at this time；If
Current transmission mode is Open-Loop Spatial Multiplexing transmission mode, then base station sends CQI to UE and adjusts message, and UE is sent by base station
CQI adjusts message and elongates the CQI periods (being 160ms by CQI period modulations).If current transmission mode is not Open-Loop Spatial Multiplexing
Transmission mode then continues the type for judging measurement report, does not adjust the CQI periods, until transmission mode becomes open loop space
Multiplexing transmission pattern.
After if base station receives the measurement report of user terminal transmission, after further judging current transmission mode, currently
Transmission mode is neither dual-stream beamforming transmission mode is nor Open-Loop Spatial Multiplexing transmission mode, then base station does not adjust CQI
Period.
Further to embody the superiority of location-based CQI period modulations method provided by the invention, the present invention also carries
For a kind of base station, the above-mentioned CQI period modulation methods of the base station applies；The base station includes：Measurement report receiving unit is surveyed
Amount report detection unit, transmission mode detection unit and CQI cycle adjusting units；The measurement report receiving unit is whole by user
The measurement report that end is sent receives and is sent to measurement report detection unit；The measurement report detection unit detects measurement report
Type and testing result is sent to transmission mode detection unit；Transmission mode detection unit detects current transmission mode and will
Transmission mode and measurement report type are sent to CQI cycle adjusting units；CQI cycle adjusting units are by the type and phase for measuring report
The transmission mode classification adjustment CQI periods answered.In the present invention, base station adjusts the mistake in CQI periods according to the measurement report that UE is sent
Journey is identical as above-mentioned location-based CQI period modulations method, is not just repeating one by one herein.
In conclusion location-based CQI period modulations method provided by the invention and base station, by being based on measurement report
+ transmission mode is better in UE, the not good enough dynamic adjustment CQI periods can preferably utilize frequency domain resource；Better CQI institutes in saving
Resource is accounted for, not good enough subscriber channel assessment accuracy is improved.
Embodiment of above is merely to illustrate the present invention, and not limitation of the present invention, in relation to the common of technical field
Technical staff can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore all
Equivalent technical solution also belongs to scope of the invention, and scope of patent protection of the invention should be defined by the claims.
Claims (10)
1. a kind of location-based CQI period modulations method, which is characterized in that include the following steps：
Receive the measurement report that user terminal is sent；
Judge the type of measurement report；
Judge corresponding transmission mode；
By the type of measurement report and corresponding transmission mode classification adjustment CQI periods；
Wherein, the type of the measurement report includes based on the measurement report for closing GAP and based on the measurement report for opening GAP；
The transmission mode includes Open-Loop Spatial Multiplexing transmission mode and dual-stream beamforming transmission mode.
2. CQI period modulations method as described in claim 1, which is characterized in that the type by measurement report and corresponding
Transmission mode classification adjustment the CQI periods the step of include：
If it is the measurement report based on closing GAP and it is Open-Loop Spatial Multiplexing transmission mode, then base station is sent to user terminal
Adjust the first adjustment message in CQI periods.
3. CQI period modulations method as claimed in claim 2, which is characterized in that the first adjustment message is to elongate on CQI
Report the period.
4. CQI period modulations method as claimed in claim 3, which is characterized in that the CQI report cycles are adjusted to 160 millis
Second.
5. CQI period modulations method as described in claim 1, which is characterized in that the type by measurement report and corresponding
Transmission mode classification adjustment the CQI periods the step of include：
If it is the measurement report based on closing GAP and it is not Open-Loop Spatial Multiplexing transmission mode, then continues to judge measurement report
Type, the CQI periods are not adjusted, until transmission mode becomes Open-Loop Spatial Multiplexing transmission mode.
6. CQI period modulations method as described in claim 1, which is characterized in that the type by measurement report and corresponding
Transmission mode classification adjustment the CQI periods the step of include：
If it is the measurement report based on unlatching GAP and it is dual-stream beamforming transmission mode, then base station is sent to user terminal
Shorten the second adjustment message in CQI periods.
7. CQI period modulations method as claimed in claim 6, which is characterized in that the CQI report cycles are 20 milliseconds.
8. CQI period modulations method as described in claim 1, which is characterized in that the type by measurement report and corresponding
Transmission mode classification adjustment the CQI periods the step of include：
If it is the measurement report based on unlatching GAP and it is not dual-stream beamforming transmission mode, then continues to judge measurement report
Type, the CQI periods are not adjusted, until transmission mode becomes dual-stream beamforming transmission mode.
9. CQI period modulations method as described in claim 1, which is characterized in that the type by measurement report and corresponding
Transmission mode classification adjustment the CQI periods the step of include：
If after receiving the measurement report that user terminal is sent, neither dual-stream beamforming transmission mode is nor open loop space
Multiplexing transmission pattern does not adjust the CQI periods.
10. a kind of base station, which is characterized in that apply the CQI period modulation methods described in claim 1-9；The base station packet
It includes：
Measurement report receiving unit, measurement report detection unit, transmission mode detection unit and CQI cycle adjusting units；
The measurement report that user terminal is sent is received and is sent to measurement report detection unit by the measurement report receiving unit；
Testing result is simultaneously sent to transmission mode detection unit by the type of the measurement report detection unit detection measurement report；
Transmission mode detection unit detects current transmission mode and transmission mode and measurement report type is sent to CQI period tune
Whole unit；
CQI cycle adjusting units are by the type of measurement report and corresponding transmission mode classification adjustment CQI periods；
Wherein, the type of the measurement report includes based on the measurement report for closing GAP and based on the measurement report for opening GAP；
The transmission mode includes Open-Loop Spatial Multiplexing transmission mode and dual-stream beamforming transmission mode.
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108243509B (en) * | 2016-12-23 | 2020-06-05 | 大唐移动通信设备有限公司 | Downlink data sending method and base station |
| CN113541855A (en) * | 2020-04-15 | 2021-10-22 | 中国移动通信集团山东有限公司 | CQI dynamic adjustment method and system |
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| CN101998497A (en) * | 2009-08-19 | 2011-03-30 | 中兴通讯股份有限公司 | Method and device for reporting channel state information aperiodically |
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| CN103139829A (en) * | 2011-12-01 | 2013-06-05 | 中兴通讯股份有限公司 | Method, device and base station for dividing limbic users in long term evolution (LTE) system |
| CN103929269A (en) * | 2013-01-16 | 2014-07-16 | 电信科学技术研究院 | Method and device for configuring channel quality indication reporting mode |
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| US20080085703A1 (en) * | 2006-10-06 | 2008-04-10 | Nokia Corporation | Apparatus, method and computer program product providing user equipment self-terminating reporting technique |
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| CN101998497A (en) * | 2009-08-19 | 2011-03-30 | 中兴通讯股份有限公司 | Method and device for reporting channel state information aperiodically |
| CN102111246A (en) * | 2011-01-12 | 2011-06-29 | 中兴通讯股份有限公司 | Method for feeding back channel state information and user equipment |
| CN102958098A (en) * | 2011-08-24 | 2013-03-06 | 普天信息技术研究院有限公司 | Method for base station to process channel quality indicators reported by terminal |
| CN103139829A (en) * | 2011-12-01 | 2013-06-05 | 中兴通讯股份有限公司 | Method, device and base station for dividing limbic users in long term evolution (LTE) system |
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