CN101207465A - Method, apparatus and system for adjusting signal channel quality indication - Google Patents
Method, apparatus and system for adjusting signal channel quality indication Download PDFInfo
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- CN101207465A CN101207465A CNA2007101795627A CN200710179562A CN101207465A CN 101207465 A CN101207465 A CN 101207465A CN A2007101795627 A CNA2007101795627 A CN A2007101795627A CN 200710179562 A CN200710179562 A CN 200710179562A CN 101207465 A CN101207465 A CN 101207465A
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Abstract
The embodiment of the invention provides a method, a device, and a system for adjusting channel quality indication. The method includes the steps of: firstly, acquiring the resending information of sending party equipment, then, adjusting a channel quality indication parameter according to the resending information and the predetermined channel quality indication adjusting strategy, therefore, the embodiment of the invention can adjust the channel quality indication parameter according to the acquired resending information and the predetermined strategy after acquiring the resending information of the sending party equipment, so as to ensure that the corresponding channel quality indication parameter can still reflect the actual circumstance of the current channel under the condition that the measurement result is not reported.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of implementation of adjusting the channel quality indication.
Background technology
In wireless communication procedure, as adopting 3GPP HSPA+ (3GPP, third generation partner plan; HSPA, the high-speed packet access) in the communication network of technology, UE (User Equipment, subscriber equipment) usually only at Cell update (cell update) or RRC (Radio Resource Control, Radio Resource control) set up and report it in the message at RACH (Random Access Channel, Random Access Channel) measurement result on, comprise pilot channel signal to noise ratio CPICH channel Ec/NO in the corresponding measurement result, parameters such as path loss PassLoss, so that network side can obtain current channel quality status, and carry out the transmission control of data according to current channel quality status.Wherein, if UE resides in a certain sub-district always, then it will can not report up-to-date RACH measurement result.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art:
If UE resides in same sub-district for a long time, and do not report most recent measurements, will cause network side can't in time know the channel quality condition of the current reality of this UE, and then may cause efficiency of transmission to reduce.For example, if current UE channel quality channel quality variation before, but network side entities such as base station still adopt bigger TB (transport block, transmission block) transmits data, then will cause data transmission fault, increase retransmission rate, perhaps, if current channel quality channel quality before improves, and UE still adopts less TB size to carry out transfer of data, then will cause the sub-district throughput to descend.
Summary of the invention
Embodiments of the invention provide a kind of methods, devices and systems of adjusting the channel quality indication, so that the channel quality indication can accurately reflect actual channel quality status.
The embodiment of the invention also provides a kind of method of adjusting the channel quality indication, comprising:
Obtain the retransmission information of transmit leg equipment;
According to described retransmission information and predetermined strategy the channel quality indication parameter is adjusted.
The embodiment of the invention also provides a kind of device of adjusting the channel quality indication, comprising:
The retransmission information acquiring unit is used to obtain the retransmission information of transmit leg equipment;
Adjustment unit, the retransmission information and the predetermined strategy that are used for obtaining according to described retransmission information acquiring unit are adjusted the channel quality indication parameter.
The embodiment of the invention also provides a kind of base station, comprises the device of above-mentioned adjustment channel quality indication.
The embodiment of the invention also provides a kind of base station controller, comprises the device of above-mentioned adjustment channel quality indication.
The embodiment of the invention also provides a kind of system, comprising: base station controller, and the retransmission information that is used for determining passes to the base station; The base station, the retransmission information and the predetermined channel quality that are used for sending according to described base station controller are indicated the adjustment strategy, and indication is adjusted to channel quality.
The technical scheme that is provided by the embodiment of the invention described above as can be seen, owing to can carry out the adjustment of channel quality indication according to the re-transmission situation in the communication process, thereby make corresponding channel quality indication can represent current channel quality exactly, and then can improve reliability of data transmission, and can improve the throughput of sub-district.
Description of drawings
The processing procedure schematic diagram one of the method that Fig. 1 provides for the embodiment of the invention;
The processing procedure schematic diagram two of the method that Fig. 2 provides for the embodiment of the invention;
The structural representation of a kind of device that Fig. 3 provides for the embodiment of the invention.
Embodiment
In the embodiment of the invention, can be after the retransmission information of obtaining transmit leg equipment, according to retransmission information of obtaining and predetermined channel quality indication adjustment strategy the channel quality indication parameter is adjusted, so that corresponding channel quality indication parameter can reflect the actual conditions of current channel exactly.
Alternatively, corresponding retransmission information can comprise: whether retransmit, perhaps, and the retransmission rate in the scheduled time, perhaps, the number of times of re-transmission perhaps, takes place in the continuous correct amount of information that receives in the scheduled time in the scheduled time, or the like.
In transmit leg equipment and receiver equipment communication process, if the information that transmit leg equipment sends does not correctly arrive receiver equipment, then transmit leg equipment will resend corresponding information, and this process promptly is called re-transmission.For the information that resends, transmit leg equipment need inform that by corresponding indication information this information of receiver equipment is the information that resends in information.In the WCDMA system, this indication information can be for information such as sequence number SN, and in other communication systems, according to the difference that adopts agreement, this indication information is different, but its function all is to inform that this information of receiver equipment is the information that resends.The embodiment of the invention utilizes corresponding indication information to know corresponding retransmission information just, so that carry out the adjustment of CQI (channel quality indication, Channel Quality Indicator) parameter.
In the embodiment of the invention, specifically can when satisfying in the described strategy condition that reduces or improve the channel quality indication, the described retransmission information of obtaining reduce or improve the parameter value of channel quality indication according to predetermined step-length; Perhaps, when the described retransmission information of obtaining satisfies in the described strategy condition that reduces or improve the channel quality indication, also can determine the step-length adjusted, and reduce or improve the parameter value of described channel quality indication according to this step-length according to predetermined strategy.Wherein:
Retransmission information satisfies the condition that reduces the channel quality indication in the described strategy and can comprise: professional in the given time retransmission rate is greater than the first predetermined retransmission rate, or re-transmission taken place, or re-transmission taken place in the given time, or the number of times that take place to retransmit in the given time is greater than first predetermined value, or the correct continuously in the given time data volume that receives is less than first scheduled volume;
Retransmission information satisfies the condition that improves the channel quality indication in the described strategy and can comprise: professional in the given time retransmission rate is less than the second predetermined retransmission rate, or do not retransmit in the given time, or the number of times that take place to retransmit in the given time is less than second predetermined value, or the correct continuously in the given time data volume that receives is greater than second scheduled volume.
Further, the retransmission information in the embodiment of the invention can include but not limited to following each:
(1) will whether retransmit the number of times that retransmits in (can be under the prerequisite predetermined or the not scheduled time, whether take place retransmit or) or the scheduled time as described retransmission information, corresponding channel quality indication parameter is adjusted according to whether taking place to retransmit;
(2) with retransmission rate in the scheduled time as described retransmission information, so that, corresponding channel quality indication parameter is adjusted taking place whether to reach predetermined value according to the retransmission rate in the scheduled time under the re-transmission situation.The corresponding retransmission rate is big more, and then the number of times of expression re-transmission is many more, and promptly channel quality is poor more, and retransmission rate is more little, and then the number of times of expression re-transmission is few more, and promptly channel quality is good more;
(3) because the amount of the information that correctly receives continuously in the scheduled time can reflect the re-transmission situation in the network, so can also adjust to carry out the channel quality indication parameter with the correct continuously information that receives in the scheduled time as described retransmission information according to the correct continuously amount of information that receives in the scheduled time.
According to the difference of the retransmission information that adopts, raising of adopting in the embodiment of the invention or the processing procedure that reduces the value of described channel quality indication parameter specifically can have different combinations, are exemplified below:
Mode one: if take place to retransmit or when taking place the number of times that retransmits or retransmit in the given time in the given time, then can reduce the value of described channel quality indication parameter greater than first predetermined value.If the number of times that the information that re-transmission takes place in the given time or correctly receive continuously reaches scheduled volume or is lower than predetermined retransmission rate or re-transmission in the given time then can improve the value of channel quality indication parameter less than second predetermined value.Wherein, described first predetermined value can be greater than second predetermined value, and perhaps, described first predetermined value can equal second predetermined value.
Mode two:, then can reduce the value of described channel quality indication parameter if retransmission rate is higher than predetermined retransmission rate (i.e. the first predetermined retransmission rate) in first scheduled time.If in second scheduled time, take place to retransmit or the correct continuously information that receives surpasses number of times that scheduled volume or retransmission rate be lower than predetermined retransmission rate (i.e. the second predetermined retransmission rate) or re-transmission in the given time less than predetermined value, then can improve the value of channel quality indication parameter.Wherein, corresponding first scheduled time and second scheduled time can be identical or different, and the corresponding first predetermined retransmission rate and the second predetermined retransmission rate equally can be identical or different.
Mode three:, then can reduce the value of described channel quality indication parameter if the correct continuously information that receives is lower than predetermined amount (being called first scheduled volume) in first scheduled time.If in second scheduled time continuously correct information that receives be higher than predetermined amount (being called second scheduled volume) or take place to retransmit or retransmission rate is lower than predetermined retransmission rate or the number of times that retransmits in the given time less than predetermined value, then can improve the value of channel quality indication parameter; Wherein, corresponding first scheduled time and second scheduled time can be identical or different, and corresponding first scheduled volume and second scheduled volume equally can be identical or different.
In the process of adjusting at the channel quality indication parameter, specifically can but be not limited to improve or reduce according to predetermined step-length the value of described channel quality indication parameter according to described retransmission information, for example, in each adjustment process, can increase at every turn or reduce 0.1dB, 1dB or a plurality of dB or the like.
In the embodiment of the invention, need in preset range, improve or reduce the value of described channel quality indication parameter usually.For example, when the value of corresponding channel quality indication parameter has been maximum,, also no longer this value is adjusted even if then meet the condition that improves the channel quality indication parameter; Otherwise,,, also no longer this value is adjusted even if then meet the condition that reduces the channel quality indication parameter when the value of corresponding channel quality indication parameter has been minimum.Moreover, if current channel quality indication parameter exceeds predetermined maximum value or minimum value, then can directly carry out the adjustment of channel quality indication parameter as currency with corresponding maximum or minimum value.If for example, corresponding maximum is 22, then former CQI＞22, and CQI need be reduced by 1 unit the time, then directly CQI is reduced to 21.
To use the embodiment of the invention in 3G network is example, specifically can dynamically adjust the value of channel quality indicator (CQI) by RLC (Radio Link control) retransmission rate, so that CQI can reflect current channel quality exactly.In the 3G network evolution process, introduced HSPA+ (high speeduplink packet access enhancing) technology.Wherein, strengthening CELL-FACH function (E_FACH) is the function that increases newly at 3GPP R7 version HSPA+, mainly refers to support under IDLE, CELL_FACH, CELL_PCH and URA_PCH state the reception of HSDPA channel.In the technical scheme that the embodiment of the invention provides, reside in same sub-district for a long time for the UE that is in CELL-FACH (common downlink transmission channel) enhanced situation, and when initiatively not reporting RACH (RACH) measurement result, then RNC NodeB (base station under the RNC) can retransmit the value that situation is adjusted CQI dynamically according to current RLC, to improve data transmission efficiency.Promptly in the 3G network of having introduced the HSPA+ technology, specifically be with RNC as corresponding transmit leg equipment, and the corresponding process of adjusting can be finished in RNC, perhaps, also can carry out in NodeB.
Promptly can judge the current variations trend of UE, and dynamically adjust the value of CQI according to the adjustment step-length of this trend and setting according to the situation that rlc layer retransmits.
Suppose that the situation that corresponding rlc layer retransmits represents with retransmission rate (being rlc layer data re-transmission rate), then adopt AM (affirmation mode) pattern to carry out under the situation of transfer of data at rlc layer, corresponding rlc layer data re-transmission rate can be defined as: the ratio of the data block number of erroneous transmissions and total transmission data block number in a period of time.Wherein, if a data block is advanced repeatedly retransmitted, then the fast number of data of corresponding error transmission will add up one by one, and at this moment, rlc layer data re-transmission rate will raise.Perhaps, corresponding rlc layer data re-transmission rate also can adopt other modes to represent, as long as it can express the ratio that data transmission fault takes place.
After the embodiment of the invention is applied in the wireless communication system, CQI and rlc layer data re-transmission rate can be associated, can react the actual mass situation of current channel as much as possible to guarantee CQI.This be because: when CQI was lower than the current actual channel quality of UE, the available resources situation that the CQI that utilize to preserve calculates was lower than current UE and can receives resource, and at this moment, corresponding rlc layer data re-transmission rate is lower; When CQI was higher than the current actual channel quality of UE, the available resources situation that the CQI that utilization is preserved calculates was higher than current UE and can receives resource, and at this moment, corresponding rlc layer data re-transmission rate can increase.As seen, exist incidence relation closely between CQI and the rlc layer data re-transmission rate, therefore, can carry out suitable adjustment to the CQI value, make corresponding C QI more near the actual mass situation of channel according to rlc layer data re-transmission rate.
Embodiment one
To be example with a concrete Application Example below describes the adjustment process of CQI, in this Application Example specifically be with the scheduled time in retransmission rate be example as described retransmission information, for similar as the processing mode of retransmission information, so not explanation one by one with it with other information.
As shown in Figure 1, corresponding C QI adjustment process specifically can may further comprise the steps:
Current rlc layer retransmission rate is meant: calculate total PDU number ratio that the transmission of determining retransmits PDU (protocol Data Unit) number and transmission in current predetermined amount of time.Wherein, the length of predetermined amount of time can flexible configuration, specifically can be identical with the adjustment cycle of CQI, and also can be less than the adjustment cycle (at this moment, will calculate and obtain a plurality of retransmission rates, and determine current retransmission rate) of CQI as average mode according to a plurality of retransmission rates.
With the WCDMA system is example, and current retransmission rate need be calculated at RNC, and result of calculation is offered NodeB, so that NodeB carries out the adjustment of follow-up judgement and CQI in view of the above; Perhaps, also can in RNC, finish the adjustment operation of follow-up judgement and CQI.
In the embodiment of the invention, predefined rlc layer retransmission rate threshold value can comprise rlc layer retransmission rate threshold value A 1 that reduces the CQI correspondence and the rlc layer retransmission rate threshold value A 2 that improves CQI.As previously mentioned, A1 and A2 can be identical, also can be different.In the present embodiment, the RLC retransmission rate threshold value A 1 that reduces CQI is set to rlc layer retransmission rate A2 greater than rising CQI,, can realizes that falling soon slowly of CQI rises by such mode.Be that example is described greater than A2 mainly below with A1.
Adjustment step-length at CQI can be unit with dB accordingly, according to the adjustment requirement setting flexibly of reality.In this step, CQI can be reduced a step-length or a plurality of step-length.In each adjustment process, can be according to the mapping relations of UE ability and CQI, CQI adjusts step-length can be 0.1dB, 1dB or a plurality of dB or the like, certainly, also can select other optimal value according to simulation result.Be understandable that, adjust a plurality of still step-lengths and interrelate with method of adjustment.Once reduce a plurality of step-lengths if be set at, CQI is underspeeded comparatively fast, so that in time adjust CQI.
In addition, also can adjust according to the definite step-length of adjusting of predetermined strategy and to CQI, for example, the difference between calculating retransmission rate desired value (i.e. the retransmission rate value of the expectation of She Dinging) and the retransmission rate measured value and the ratio M of retransmission rate desired value can adopt the mode of calculating step-length to comprise: if then can once adjust CQI M step-length this moment.
Be understandable that CQI can correspond on the TB piece after adjusting.
In this step, a step-length or a plurality of step-length can raise CQI.Because and step 103 is similar, repeats no more.But what deserves to be explained is, rise that what the step-length that improves CQI can be provided with is littler if realize falling soon slowly, with the step-length that reduces CQI be provided with greatly.Perhaps, raise the number of step-length less than each number that reduces step-length at every turn.
Be understandable that if in the judgement of step 102, current rlc layer retransmission rate equals A1 or equals A2 or in the interval of A1 and A2, then keep CQI constant.
In the embodiment of the invention, predefined rlc layer retransmission rate threshold value comprises rlc layer retransmission rate threshold value A 1 that reduces the CQI correspondence and the rlc layer retransmission rate threshold value A 2 that improves CQI.Be understandable that, also can only set a rlc layer retransmission rate threshold value (raising or reduction).
The embodiment of the invention is that example describes with retransmission rate in the scheduled time as described retransmission information mainly.Substitute and reduction procedure as a kind of,, like this, can follow the tracks of variations fast as long as the data transmission fault that rlc layer occurs (being that a data transmission fault appears in rlc layer) just reduces CQI one or more step-lengths.And corresponding, if rlc layer receives correct data continuously and reaches some, or occur in the scheduled time retransmitting, represent that then current C QI value can correctly reflect current channel quality at this moment, a step-length then can raise CQI.
The description that other Rule of judgment sees also aforementioned " improving or reduce the processing procedure of the value of described channel quality indication parameter ", and other possible combining forms repeat no more herein.
Embodiment two
In the embodiment of the invention, the rlc layer retransmission rate threshold value that can reduce the CQI correspondence in concrete application process is set to same value A with the rlc layer retransmission rate threshold value that improves CQI, i.e. unification is provided with corresponding rlc layer retransmission rate threshold value, as shown in Figure 2, corresponding C QI adjustment process specifically can comprise:
Step 202 compares current rlc layer retransmission rate and predefined RLC retransmission rate threshold value A, and greater than A, then execution in step 203 as if current rlc layer retransmission rate, otherwise, execution in step 204;
Step 203 reduces a step-length or a plurality of step-length with CQI;
Step 204 increases a step-length or a plurality of step-length with CQI.
Be understandable that,, then keep the CQI value constant if current rlc layer retransmission rate equals A.
From the processing procedure of the foregoing description as can be seen, even reporting measurement result not, still can carry out the adjustment of channel quality indication parameter according to the corresponding retransmission situation, so that corresponding channel quality indication can reflect the actual mass situation of current channel exactly.And, can adopt suitable adjustment strategy flexibly according to actual needs, as realization is set falls the CQI that rises slowly soon and adjust strategy etc. by different.
What deserves to be explained is, be example with WCDMA, in the above-mentioned steps, can obtain retransmission information by radio network controller, and relatively the step of Pan Duaning is also carried out in radio network controller, adjusts CQI accordingly and also carries out in radio network controller.Follow-up radio network controller sends to the base station with adjusted CQI, sends data for the base station and uses.In addition, also can finish the step of relatively judging and adjusting CQI by the base station.
The embodiment of the invention also provides a kind of device of adjusting the channel quality indication, and its specific implementation structure can comprise as shown in Figure 3 with lower unit:
(1) retransmission information acquiring unit is used to obtain the retransmission information of transmit leg equipment.
(2) adjustment unit, the retransmission information and the predetermined strategy that are used for obtaining according to described retransmission information acquiring unit are adjusted the channel quality indication parameter.
Further, this adjustment unit specifically can comprise:
Judgment sub-unit is used to the retransmission information of judging that described retransmission information acquiring unit is obtained, whether satisfies the condition that reduces or improve the channel quality indication in the described strategy;
Adjust the operation subelement, the judged result that is used for when described judgment sub-unit is when satisfying the condition that described strategy reduces or the raising channel quality is indicated, reduce or improve the parameter value of described channel quality indication according to predetermined step-length, perhaps, determine step-length of adjusting and the parameter value that reduces or improve described channel quality indication according to this step-length according to predetermined strategy.
In the foregoing description,
Described retransmission information can comprise: whether retransmits, or the retransmission rate in the scheduled time, or the interior correct continuously amount of information that receives of the scheduled time, or the number of times that generation retransmits in the scheduled time;
The condition that reduces the channel quality indication in the described strategy can comprise: professional in the given time retransmission rate is greater than the first predetermined retransmission rate, or re-transmission taken place, or re-transmission taken place in the given time, or the number of times that take place to retransmit in the given time is greater than first predetermined value, or the correct continuously in the given time data volume that receives is less than first scheduled volume;
Described retransmission information satisfies the condition that improves the channel quality indication in the described strategy and can comprise: professional in the given time retransmission rate is less than the second predetermined retransmission rate, or do not retransmit in the given time, or the number of times that take place to retransmit in the given time is less than second predetermined value, or the correct continuously in the given time data volume that receives is greater than second scheduled volume.
Alternatively, this device can also comprise the unit is set, and is used for being provided with: the described first predetermined retransmission rate is more than or equal to the described second predetermined retransmission rate; Described first predetermined value is more than or equal to described second predetermined value; Described first scheduled volume is more than or equal to described second scheduled volume.
In addition, this is provided with the step-length that unit further is used to be provided with reduction or rising CQI.
Said apparatus specifically can be arranged in the base station controller, perhaps, also can be arranged in the base station equipment.Wherein, in the time of in being arranged at base station controller, the corresponding retransmission information acquisition unit promptly can be obtained corresponding retransmission information from this locality; If said apparatus is arranged in the base station equipment, then the corresponding retransmission information acquisition unit can be obtained corresponding retransmission information from base station controller.
In the embodiment of the invention, specifically can obtain corresponding retransmission information from base station controller, at this moment, the system that adjusts the channel quality indication accordingly specifically can comprise:
Base station controller, as transmit leg equipment, the retransmission information that is used for determining passes to the base station, and the particular content front that corresponding retransmission information can comprise is described, and no longer repeats at this; This base station controller may be a radio network controller, or the base-station control apparatus in the other system.
The base station, the retransmission information and the predetermined channel quality that are used for sending according to described base station controller are indicated the adjustment strategy, and indication is adjusted to channel quality; Tactful front is adjusted in the predetermined channel quality indication that specifically can adopt description, so be not described in detail in this.
In above-mentioned each embodiment of the invention, except that radio network controller can be used as transmit leg equipment, user equipment (UE) or base station equipment also can be used as corresponding transmit leg equipment, so that carry out the adjustment of CQI by the retransmission information of UE or base station equipment.
In sum, in the embodiment of the invention employing wireless communication system, can guarantee under reporting measurement result (such as channel quality indication etc.) situation not, still can carry out the adjustment of channel quality indication parameter, so that corresponding channel quality indication can reflect the actual mass situation of current channel well according to the corresponding retransmission situation.For example, be example with the 3G system, reside in same sub-district for a long time being in CELL-FACH enhanced situation UE, and do not report under up-to-date RACH channel measurement result's the situation, dynamically adjust CQI according to rlc layer re-transmission situation, make CQI consistent with current channel quality.Simultaneously because channel quality indication can correctly reflect current channel quality, therefore, according to channel quality indication carry out in the process of transfer of data, can also effectively improve reliability of data transmission and improve the throughput of network service.
What deserves to be explained is that embodiment of the present invention is that example is illustrated with the situation among the WCDMA mainly, other standard, for example: CDMA, GSM, TD-CDMA or the like can analogize.Entity/equipment/device/unit/channel that some of this paper appearance have specific names can replace with the entity/equipment with identical or similar functions/device/unit/channel equally, repeats no more.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (12)
1. a method of adjusting the channel quality indication is characterized in that, comprising:
Obtain the retransmission information of transmit leg equipment;
Adjust strategy according to described retransmission information and predetermined channel quality indication, indication is adjusted to channel quality.
2. method according to claim 1 is characterized in that, described according to described retransmission information and predetermined channel quality indication adjust strategy to channel quality indication adjust and comprise:
When the described retransmission information of obtaining satisfies in the described strategy condition that reduces or improve the channel quality indication, reduce or improve the parameter value of described channel quality indication according to predetermined step-length;
Perhaps,
When the described retransmission information of obtaining satisfies in the described strategy condition that reduces or improve the channel quality indication, determine the step-length adjusted according to predetermined strategy, and reduce or improve the parameter value of described channel quality indication according to this step-length.
3. method according to claim 2 is characterized in that,
Whether described retransmission information comprises: retransmit; Perhaps, the retransmission rate in the scheduled time; Perhaps, the correct continuously amount of information that receives in the scheduled time; The number of times of re-transmission perhaps, takes place in the scheduled time;
Described retransmission information satisfies the condition that reduces the channel quality indication in the described strategy and comprises:
Professional in the given time retransmission rate is greater than the first predetermined retransmission rate, or re-transmission taken place, or re-transmission has taken place in the given time, the number of times that take place to retransmit in the given time is greater than first predetermined value, or the correct continuously in the given time data volume that receives is less than first scheduled volume;
Described retransmission information satisfies the condition that improves the channel quality indication in the described strategy and comprises:
Professional in the given time retransmission rate is less than the second predetermined retransmission rate, or do not retransmit in the given time, or the number of times that take place to retransmit in the given time is less than second predetermined value, or the correct continuously in the given time data volume that receives is greater than second scheduled volume.
4. method according to claim 3 is characterized in that,
The described first predetermined retransmission rate is more than or equal to the described second predetermined retransmission rate;
Described first predetermined value is more than or equal to described second predetermined value;
Described first scheduled volume is more than or equal to described second scheduled volume.
5. according to each described method of claim 2 to 4, it is characterized in that this method also comprises:
The step-length that the described channel quality indication parameter of reduction is set is greater than the step-length that improves described channel quality indication parameter; Perhaps, the number of steps of the described channel quality indication parameter of reduction is set greater than the number of steps that improves described channel quality indication parameter.
6. a device of adjusting the channel quality indication is characterized in that, comprising:
The retransmission information acquiring unit is used to obtain the retransmission information of transmit leg equipment;
Adjustment unit, the retransmission information and the predetermined channel quality that are used for obtaining according to described retransmission information acquiring unit are indicated the adjustment strategy, and indication is adjusted to channel quality.
7. device according to claim 6 is characterized in that, described adjustment unit comprises:
Judgment sub-unit is used to the retransmission information of judging that described retransmission information acquiring unit is obtained, whether satisfies the condition that reduces or improve the channel quality indication in the described strategy;
Adjust the operation subelement, the judged result that is used for when described judgment sub-unit is when satisfying the condition that described strategy reduces or the raising channel quality is indicated, reduce or improve the parameter value of described channel quality indication according to predetermined step-length, perhaps, determine step-length of adjusting and the parameter value that reduces or improve described channel quality indication according to this step-length according to predetermined strategy.
8. device according to claim 7 is characterized in that,
Described retransmission information comprises:
Whether retransmit, or the retransmission rate in the scheduled time, or the interior correct continuously amount of information that receives of the scheduled time, or the number of times that generation retransmits in the scheduled time;
The condition that reduces the channel quality indication in the described strategy comprises:
Professional in the given time retransmission rate is greater than the first predetermined retransmission rate, or re-transmission taken place, or re-transmission has taken place in the given time, the number of times that take place to retransmit in the given time is greater than first predetermined value, or the correct continuously in the given time data volume that receives is less than first scheduled volume;
Described retransmission information satisfies the condition that improves the channel quality indication in the described strategy and comprises:
Professional in the given time retransmission rate is less than the second predetermined retransmission rate, or do not retransmit in the given time, or the number of times that take place to retransmit in the given time is less than second predetermined value, or the correct continuously in the given time data volume that receives is greater than second scheduled volume.
9. according to claim 6,7 or 8 described devices, it is characterized in that described device also comprises:
The unit is set, is used for being provided with: the described first predetermined retransmission rate is more than or equal to the described second predetermined retransmission rate; Described first predetermined value is more than or equal to described second predetermined value; Described first scheduled volume is more than or equal to described second scheduled volume.
10. a base station is characterized in that, comprises as each described device of claim 6 to 9.
11. a base station controller is characterized in that, comprises as each described device of claim 6 to 9.
12. a system that adjusts the channel quality indication is characterized in that, comprising:
Base station controller, the retransmission information that is used for determining passes to the base station;
The base station, the retransmission information and the predetermined channel quality that are used for sending according to described base station controller are indicated the adjustment strategy, and indication is adjusted to channel quality.
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| CNA2007101795627A CN101207465A (en) | 2007-12-14 | 2007-12-14 | Method, apparatus and system for adjusting signal channel quality indication |
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| CNA2007101795627A CN101207465A (en) | 2007-12-14 | 2007-12-14 | Method, apparatus and system for adjusting signal channel quality indication |
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| CNA2007101795627A Pending CN101207465A (en) | 2007-12-14 | 2007-12-14 | Method, apparatus and system for adjusting signal channel quality indication |
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Cited By (11)
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| WO2010066131A1 (en) * | 2008-12-09 | 2010-06-17 | 中兴通讯股份有限公司 | Cqi correction method and apparatus on the lte transmission mode 7 |
| CN102255717A (en) * | 2010-05-21 | 2011-11-23 | 电信科学技术研究院 | Channel quality indicator CQI information correction method and apparatus thereof |
| WO2012006895A1 (en) * | 2010-07-13 | 2012-01-19 | 中兴通讯股份有限公司 | Method and device for counting reverse retransmission rate of radio link protocol layer |
| WO2012092795A1 (en) * | 2011-01-06 | 2012-07-12 | 中兴通讯股份有限公司 | Method and system for triggering coordinated multi-point (comp) transmission |
| CN102845013A (en) * | 2011-04-22 | 2012-12-26 | 华为技术有限公司 | Data transmission method and device |
| CN104144028A (en) * | 2013-05-06 | 2014-11-12 | 华为技术有限公司 | Channel quality indication adjusting method, device and system |
| WO2014187337A1 (en) * | 2013-05-22 | 2014-11-27 | 华为技术有限公司 | Method and base station for adjusting channel quality indicator |
| CN105610543A (en) * | 2014-11-25 | 2016-05-25 | 中兴通讯股份有限公司 | Method and device for adjusting channel quality indicator (CQI) |
| CN108259122A (en) * | 2016-12-28 | 2018-07-06 | 电信科学技术研究院 | A kind of wireless self-networking communication means and device |
| CN110138511A (en) * | 2018-02-09 | 2019-08-16 | 成都鼎桥通信技术有限公司 | A kind of semi-static resource scheduling method |
| WO2020228428A1 (en) * | 2019-05-13 | 2020-11-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods, terminal device and network node for uplink transmission |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2010066131A1 (en) * | 2008-12-09 | 2010-06-17 | 中兴通讯股份有限公司 | Cqi correction method and apparatus on the lte transmission mode 7 |
| CN102255717A (en) * | 2010-05-21 | 2011-11-23 | 电信科学技术研究院 | Channel quality indicator CQI information correction method and apparatus thereof |
| CN102255717B (en) * | 2010-05-21 | 2013-08-14 | 电信科学技术研究院 | Channel quality indicator CQI information correction method and apparatus thereof |
| WO2012006895A1 (en) * | 2010-07-13 | 2012-01-19 | 中兴通讯股份有限公司 | Method and device for counting reverse retransmission rate of radio link protocol layer |
| CN102333331A (en) * | 2010-07-13 | 2012-01-25 | 中兴通讯股份有限公司 | Method and apparatus for statistics of reverse retransmission rate of radio link protocol layer |
| CN102333331B (en) * | 2010-07-13 | 2015-09-16 | 中兴通讯股份有限公司 | The statistical method of the reverse retransmission rate of a kind of wireless link protocol layer and device |
| CN102595513B (en) * | 2011-01-06 | 2015-09-16 | 中兴通讯股份有限公司 | A kind of based on retransmitting the method and system triggering coordinated multipoint transmission |
| WO2012092795A1 (en) * | 2011-01-06 | 2012-07-12 | 中兴通讯股份有限公司 | Method and system for triggering coordinated multi-point (comp) transmission |
| CN102595513A (en) * | 2011-01-06 | 2012-07-18 | 中兴通讯股份有限公司 | Method based on retransmission trigger coordinated multi-point transmission and system thereof |
| CN102845013A (en) * | 2011-04-22 | 2012-12-26 | 华为技术有限公司 | Data transmission method and device |
| CN104144028A (en) * | 2013-05-06 | 2014-11-12 | 华为技术有限公司 | Channel quality indication adjusting method, device and system |
| CN104144028B (en) * | 2013-05-06 | 2017-11-17 | 华为技术有限公司 | Channel quality indication adjusting method, apparatus and system |
| CN104184538A (en) * | 2013-05-22 | 2014-12-03 | 华为技术有限公司 | Channel quality indicator (CQI) adjusting method and base station |
| WO2014187337A1 (en) * | 2013-05-22 | 2014-11-27 | 华为技术有限公司 | Method and base station for adjusting channel quality indicator |
| CN104184538B (en) * | 2013-05-22 | 2017-12-29 | 华为技术有限公司 | A kind of method of adjustment of channel quality instruction and base station |
| CN105610543A (en) * | 2014-11-25 | 2016-05-25 | 中兴通讯股份有限公司 | Method and device for adjusting channel quality indicator (CQI) |
| CN108259122A (en) * | 2016-12-28 | 2018-07-06 | 电信科学技术研究院 | A kind of wireless self-networking communication means and device |
| CN110138511A (en) * | 2018-02-09 | 2019-08-16 | 成都鼎桥通信技术有限公司 | A kind of semi-static resource scheduling method |
| WO2020228428A1 (en) * | 2019-05-13 | 2020-11-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods, terminal device and network node for uplink transmission |
| CN113826341A (en) * | 2019-05-13 | 2021-12-21 | 瑞典爱立信有限公司 | Method, terminal device and network node for uplink transmission |
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