CN105634682B - A kind of method and device of adjustment scheduling CQI - Google Patents
A kind of method and device of adjustment scheduling CQI Download PDFInfo
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- CN105634682B CN105634682B CN201410584149.9A CN201410584149A CN105634682B CN 105634682 B CN105634682 B CN 105634682B CN 201410584149 A CN201410584149 A CN 201410584149A CN 105634682 B CN105634682 B CN 105634682B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
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Abstract
The present invention provides the method and device of adjustment scheduling CQI a kind of, is related to the communications field, this method comprises: firstly, the serving cell notifies and receives the decoded obtained ACK and NACK of the exclusive entity control channel HS-DPCCH of non-service cell up-high speed；Secondly, ACK and nack message adjustment the scheduling CQI that the decoding of the serving cell non-service cell based on the received obtains.The present invention also provides the device of adjustment scheduling CQI a kind of, which includes: information receiving unit and adjustment scheduling CQI unit.By means of the present invention and device, when can be uneven above and below soft handover, influence of the uplink feedback mistake to downstream rate be reduced, guarantees good communication.
Description
Technical field
The present invention relates to mobile communication field, in particular to a kind of method and device of adjustment scheduling CQI.
Background technique
In the wireless network soft handover of cdma system, the selection of serving cell is judged according to the signal quality of downlink
's.After serving cell determines, uplink and downlink is carried out by the service link of serving cell.HS-PDSCH (high-speed physical downlink
Link shared channels) ACK, NACK feedback and CQI be all that the exclusive reality of up-high speed that reports of UE is demodulated by serving cell
Body control channel HS-DPCCH information obtains.In some switch areas, the downlink signal quality of serving cell is good, but uplink matter
Amount be not necessarily it is best, it is uneven thus to will appear certain uplink and downlink, and it is exclusive to decode up-high speed by serving cell uplink
ACK, NACK and the CQI that entity control channel HS-DPCCH is obtained just will appear a large amount of mistake: ACK is decoded into NACK and can lead
The DUP for causing UE to survey, NACK solution will lead to the re-transmission of rlc layer, the wrong data block that will lead to scheduling of CQI solution and true letter at ACK
Road condition is not inconsistent, these are all by serious influence downstream rate.
Summary of the invention
The purpose of the present invention is to provide the method and devices of adjustment scheduling CQI a kind of, it may be possible to solve switching very well
The downlink signal quality when imbalance of trade above and below Shi Suoshu service area.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
In a first aspect, the present invention provides the method for adjustment scheduling CQI a kind of, comprising: first, it is determined that whether serving cell is located
In uplink and downlink non-equilibrium state, the uplink and downlink non-equilibrium state refers to that downlink signal quality is fine for serving cell,
Quality of uplink signal is very poor, the ACK that serving cell uplink decoding HS-DPCCH (the exclusive entity control channel of up-high speed) obtains,
A large amount of mistake occur in NACK and CQI: ACK is decoded into NACK, NACK solution at ACK meeting, CQI solution mistake will lead to the block of scheduling with
True channel condition is not inconsistent.
Secondly, the serving cell receives the ACK of the decoded HS-DPCCH in the non-service cell, nack message；
If it is determined that the serving cell is in the unbalanced state of uplink and downlink, then non-serving is notified by RNC (radio network controller)
Cell decodes HS-DPCCH channel or is directly notified by the serving cell, and it is decoded to start reception non-service cell
ACK and nack message.
Again, ACK and nack message tune that the decoding of the serving cell non-service cell based on the received obtains
Whole scheduling CQI.
The serving cell obtains the decoded ACK in the non-service cell and nack message.When it is above-mentioned receive ACK when on
CQI is adjusted, lowers CQI when receiving NACK.
Finally, serving cell is scheduled data block according to CQI adjusted.After serving cell adjusts CQI, according to choosing
Block algorithm dispatches data and selects suitable transmission block
Second aspect example of the present invention provides the device of adjustment scheduling CQI a kind of:
Its device for adjusting scheduling CQI mainly includes information receiving unit and adjustment scheduling CQI unit；
The judging unit uneven up and down, by the SIR of the exclusive entity control channel HS-DPCCH of up-high speed or
SIRerror judges,；
The reception decoding information elements, if it is determined that the serving cell is in the unbalanced state of uplink and downlink, then by
RNC (radio network controller) notice non-service cell decodes HS-DPCCH channel or is directly notified by the serving cell,
And start to receive the decoded ACK in non-service cell and nack message；
The adjustment scheduling unit, the serving cell obtain the decoded ACK in the non-service cell and nack message.When
The above-mentioned CQI that a fixed step size is raised when receiving ACK, lowers the CQI of certain step-length when receiving NACK.Finally, serving cell
Data block is scheduled according to CQI adjusted.After serving cell adjusts CQI, data selection is dispatched according to chunking algorithm and is closed
Suitable transmission block
Compared with prior art, with this solution, capable of solving service area when switching very well, trade is uneven up and down
When downlink signal quality.Using the decoded reliable ACK in non-service cell, it is really anti-that NACK result can just be accurately obtained terminal
Feedback as a result, also can accurately adjust the CQI of scheduling.
Detailed description of the invention
It in order to illustrate the embodiments of the present invention more clearly or existing technical solution in the art, below will be to embodiment or existing
There is attached drawing needed in technical description to be briefly described.
Fig. 1 is a kind of schematic diagram of the method for adjustment scheduling CQI provided by the invention；
Fig. 2 is the method implementation flow chart of adjustment scheduling CQI provided in an embodiment of the present invention a kind of；
Fig. 3 is the device of adjustment scheduling CQI provided by the invention a kind of；
Fig. 4 provides uplink and downlink imbalance figure for the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Whole description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.
As shown in Figure 1, the present invention provides the schematic diagram of adjustment scheduling CQI a kind of.
The method of non-equilibrium state is by HS-DPCCH (the exclusive reality of up-high speed above and below the judgement serving cell described first
Body control channel) SIR or SIRerror judge, specifically if serving cell SIR is less than predetermined threshold value 1, such as SIR
Less than 0；Or SIR and given SIR error are greater than pre-determined threshold 2, for example SIR is greater than 4, then judge that the cell is in upper
Downlink non-equilibrium state.
After judging that current service cell uplink and downlink is uneven, when decoding to obtain by serving cell notice non-service cell
ACK and nack message, then according to obtained ACK and NACK adjustment CQI.In serving cell notice non-service cell decoding
The exclusive entity control channel HS-DPCCH of row high speed, and receive decoded obtained ACK and NACK；The serving cell according to
ACK and NACK the adjustment CQI arrived, and CQI data block is dispatched according to CQI adjusted.The serving cell is according to following manner
Adjust CQI: the serving cell is every to receive an ACK up-regulation CQI；When the every reception NACK of the serving cell, CQI is lowered.
It is that a specific embodiment is provided according to the technique and scheme of the present invention below.
As shown in Fig. 2, the present invention provides the method for adjustment scheduling CQI a kind of, comprising:
S201: serving cell obtains SIR the and SIRerror information of this cell control channels,
S202: serving cell judges whether cell is in uplink and downlink non-equilibrium state according to SIR and SIRerror；
If serving cell SIR is less than predetermined threshold value 1, for example SIR is less than 0；Or SIR and given SIR error
Value is greater than pre-determined threshold 2, for example SIR error is greater than 4；Then judge that the cell is in uplink and downlink non-equilibrium state；
In imbalance, by the way that serving cell is direct or RNC notifies non-service cell to decode HS-DPCCH information indirectly
Obtain ACK and NACK；
S203: serving cell receives the ACK of the HS-DPCCH of non-service cell demodulation, NACK, information；
If serving cell is in the unbalanced state of uplink and downlink, non-service cell is notified to decode HS-DPCCH, simultaneously
Receive the information of the decoded ACK and NACK in non-service cell；
S204: the ACK that serving cell is reported according to non-service cell, NACK adjustment scheduling CQI；
Serving cell receives non-service cell and reports ACK that CQI is then raised step-length A, such as up-regulation 0.1；If serviced small
Area receives non-service cell and reports NACK that CQI is then lowered step-length B, for example lowers 0.9；If it is small that serving cell receives non-serving
Area reports DTX not adjust CQI then, and does not carry out HARQ re-transmission further according to the ACK of serving cell and NACK.
S205: serving cell is scheduled data block according to CQI adjusted.
After serving cell adjusts CQI, data are dispatched according to chunking algorithm and select suitable transmission block.
It include lower uneven judging unit, the SIR that the exclusive entity control channel of up-high speed passes through HS-DPCCH in Fig. 3
Or SIRerror judges that the cell is in uplink and downlink non-equilibrium state；
The reception decoding information elements, if it is determined that the serving cell is in the unbalanced state of uplink and downlink, then by
Radio network controller (RNC) notice non-service cell decodes HS-DPCCH channel or is directly notified by the serving cell, and
And start to receive the decoded ACK in non-service cell and nack message；
The adjustment scheduling unit, the serving cell obtain the decoded ACK in the non-service cell and nack message tune
Then whole CQI data dispatch data according to chunking algorithm and select suitable transmission block
In addition the present invention combines Fig. 4 to illustrate non-equilibrium state up and down, and in current service cell, downstream transmission signals covering is good
Good region, the current service cell UE uplink signal might not be got well, by UE be reported to the decoded ACK in non-service cell and
NACK can achieve adjustment CQI and dispatch data block.
The above description shows and describes a preferred embodiment of the present invention, but as previously described, it should be understood that the present invention
Be not limited to forms disclosed herein, should not be regarded as an exclusion of other examples, and can be used for various other combinations,
Modification and environment, and the above teachings or related fields of technology or knowledge can be passed through within that scope of the inventive concept describe herein
It is modified.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, then it all should be in this hair
In the protection scope of bright appended claims.
Claims (6)
1. a kind of method of adjustment scheduling CQI, is applied to serving cell and is in nonequilibrium condition, the nonequilibrium condition is described
The SIR of serving cell is greater than the second predetermined threshold value less than the first predetermined threshold value or SIRerror, which is characterized in that described
Method includes:
(a) serving cell notice non-service cell decodes the exclusive entity control channel HS-DPCCH of up-high speed, and receives
Decoded obtained ACK and NACK；
(b) serving cell adjusts CQI according to obtained ACK and NACK, and dispatches CQI data block according to CQI adjusted.
2. the method as described in claim 1, which is characterized in that in the step b, the serving cell is according to following manner tune
Whole CQI: the serving cell is every to receive an ACK up-regulation CQI；When the every reception NACK of the serving cell, CQI is lowered.
3. a kind of device of adjustment scheduling CQI characterized by comprising decoding information elements and adjustment scheduling CQI unit,
In:
The decoding information elements notify the exclusive entity control channel HS- of non-service cell up-high speed for serving cell
DPCCH decodes ACK and NACK, and receives decoded obtained ACK and NACK；
CQI unit is dispatched in the adjustment, adjusts CQI according to obtained ACK and NACK for the serving cell, and according to adjustment
CQI afterwards dispatches CQI data block.
4. device as claimed in claim 3, which is characterized in that the decoding information elements adjust CQI: institute according to following manner
State one ACK up-regulation CQI of the every reception of serving cell；When the every reception NACK of the serving cell, CQI is lowered.
5. device as claimed in claim 4, which is characterized in that described device further comprises upper and lower uneven judging unit,
It is used to judge by the SIR or SIRerror of the exclusive entity control channel HS-DPCCH of up-high speed that the cell to be in up and down
Row non-equilibrium state.
6. such as the described in any item devices of claim 3 to 5, which is characterized in that described device is applied to wireless base station Nodeb
In.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410584149.9A CN105634682B (en) | 2014-10-27 | 2014-10-27 | A kind of method and device of adjustment scheduling CQI |
| PCT/CN2015/091865 WO2016066013A1 (en) | 2014-10-27 | 2015-10-13 | Cqi adjusting and scheduling method and device |
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| CN201410584149.9A CN105634682B (en) | 2014-10-27 | 2014-10-27 | A kind of method and device of adjustment scheduling CQI |
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| CN108259125B (en) * | 2016-12-29 | 2020-11-13 | 中国移动通信集团浙江有限公司 | Downlink CQI self-adaptive adjusting method and device |
| WO2018162045A1 (en) | 2017-03-07 | 2018-09-13 | Huawei Technologies Co., Ltd. | Method and apparatus for handover aware cqi adjustment in wireless networks |
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| JP4557762B2 (en) * | 2005-03-17 | 2010-10-06 | 富士通株式会社 | Method for measuring communication environment of mobile station and mobile station |
| US8942165B2 (en) * | 2008-08-01 | 2015-01-27 | Qualcomm Incorporated | System and method for distributed multiple-input multiple-output (MIMO) in a wireless communication system |
| KR20120093455A (en) * | 2008-08-29 | 2012-08-22 | 인터디지탈 패튼 홀딩스, 인크 | Method and apparatus for sending feedback for a downlink shared service and estimating a number of wireless transmit/receive units |
| KR101549572B1 (en) * | 2008-11-25 | 2015-09-02 | 삼성전자주식회사 | Method and apparatus for transmission power control of physical control channel for cqi in mobile telecommunication system supporting multi-cell hsdpa |
| CN101931514B (en) * | 2009-06-18 | 2013-03-27 | 电信科学技术研究院 | Communication method, system and equipment for hybrid automatic repeat request |
| CN101626614B (en) * | 2009-06-22 | 2011-12-07 | 中兴通讯股份有限公司 | Method and device for controlling outer ring power of high-speed physical downlink shared channel |
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| WO2013022751A1 (en) * | 2011-08-10 | 2013-02-14 | Interdigital Patent Holdings, Inc. | Uplink feedback for multi-site scheduling |
| CN103874186B (en) * | 2012-12-18 | 2017-11-17 | 华为技术有限公司 | The Poewr control method and equipment of High-Speed Dedicated Physical Control Channel |
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| CN103299681A (en) * | 2012-12-27 | 2013-09-11 | 华为技术有限公司 | Switching method and device |
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