CN101621829B - Method and device for reporting channel quality indicator - Google Patents
Method and device for reporting channel quality indicator Download PDFInfo
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- CN101621829B CN101621829B CN2009100898907A CN200910089890A CN101621829B CN 101621829 B CN101621829 B CN 101621829B CN 2009100898907 A CN2009100898907 A CN 2009100898907A CN 200910089890 A CN200910089890 A CN 200910089890A CN 101621829 B CN101621829 B CN 101621829B
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Abstract
The invention discloses a method and a device for reporting a channel quality indicator (CQI). The method comprises the following steps: obtaining the current channel quality of a channel to be measured and calculating the code rate value of the channel to be measured and the index value of a transmission block according to the current channel quality; reducing the index value of the transmission block when the code rate value is larger than a code rate critical value and the circular redundancy correction (CRC) error amount of a user terminal in a first preset receiving window is larger than or equal to a first preset limit value so as to obtain an index adjusting value of the transmission block; and increasing the index value of the transmission block when the code rate value is larger than the code rate critical value, the CRC error amount of the user terminal in a second preset receiving window is smaller than or equal to a second preset limit value, and the second preset limit value is smaller than the first preset limit value so as to obtain the index adjusting value of the transmission block. The method and the device utilize the CRC as a standard to adjust the reporting value of the CQI so as to adjust errors with high error code rate, thereby being suitable for different channel environments and obtaining an optimized CQI reporting parameter.
Description
Technical field
The invention belongs to wireless communication technology field; Be meant a kind of TD-HSDPA of being applied to (TimeDivision-High Speed Downlink Packages Access especially; The time-division-the high speed downlink packet access) technological CQI (Channel Quality Indicator, CQI) report method and device.
Background technology
In order to adapt to the multimedia service needs growing to high speed data transfer; 3G (Third Generation) Moblie collaborative project group (3GPP) has been announced a kind of new high speed data transfer technology-HSDPA technology, and this HSDPA technology is strengthened the function of downlink transmission greatly.HSDPA has the characteristics of high speed data transfer and large user's capacity; It is through implementing some quick and complicated channel controlling mechanisms; Comprise the short frame of physical layer, AMC (adaptive modulation and coding adaptive coding and modulating), the automatic retransmission technique (Hybrid-ARQ of rapid mixing; Be called for short HARQ) with the fast dispatch technology, improved the experience that the end user uses the data download service, shortened the time that connects and reply.
The HSDPA process simply is described below: the base station is at first through HS-SCCH (High Speed-SharedControl Channel; High-Speed Shared Control Channel) notice UE (User Equipment; Subscriber equipment) corresponding HS-DSCH (High Speed-Downlink Shared Channel; High-speed downlink shared channel) information; Comprise ID, HS-PDSCH (High Speed-Physical Downlink SharedChannel, High-Speed Physical Downlink Shared Channel) code channel resource, modulation system etc.Be separated by then behind the preset time, on HS-DSCH, send data.UE then monitors HS-SCCH, through the identification ID, judges that whether this time information is to oneself.If the information of then carrying according to HS-SCCH receives and demodulation shared channel HS-DSCH, obtains data.According to the situation of measurement result and Data Receiving, transmit information then at HS-SICH.The base station is according to feedback, can determine data retransmission whether and modulation and coded system that can adaptive adjustment shared channel.
In order to realize top process; Need the auxiliary measured channel environment in terminal and produce preferable CQI (Channel Quality Indicator according to channel circumstance; CQI) value reports the base station and selects the reference that transmission block is big or small, confirm modulation system or data retransmission as transmission next time, so the CQI value of reporting is vital for the HSDPA systematic function.
In existing HSDPA technology; The report method of CQI value is to calculate code check through measuring current channel quality; Because code check has reflected the ratio of transport block length and shared physical code channel resource; Therefore can associate channel quality and transmission block size through code check,, calculate and obtain the transmitting block index value afterwards through the code check value that obtains.
Yet the report method of the above-mentioned CQI value of prior art; The definite of transmitting block index value normally utilizes form to read acquisition, and it is not necessarily accurate, particularly better at channel condition therefore to calculate the transmitting block index value that obtains; Also promptly obtain under the code check conditions of higher; The transmitting block index value reports the too high or too low actual throughput of HSDPA that all can influence, even and if under identical channel condition, the transmit difference of performance of different base station also can influence the performance of HSDPA; The CQI value report method of therefore existing fixed form is difficult to accurately report optimum value, influences HSDPA professional reliability and high efficiency.
Summary of the invention
The purpose of technical scheme of the present invention is the method and the device that provide a kind of channel quality indicator CQI to report; Utilize cyclic redundancy check (CRC) to regulate the reporting channel quality indicator value for standard; Error with to high code check is regulated; Thereby adapt to different channel circumstances, obtain optimal CQI and report parameter.
For reaching the foregoing invention purpose, the method that the present invention provides a kind of channel quality indicator CQI to report is applied to time division high speed downlink and divides into groups to insert the TD-HSDPA system, and said method comprises:
Obtain the current channel quality of channel to be measured,, calculate the code check value and the transmitting block index value of said channel to be measured according to said current channel quality;
Said code check value when the cyclic redundancy check (CRC) error number of user side in the first preset receiver window preset limit value more than or equal to first, is turned down said transmitting block index value greater than a code check critical value, obtains the transmitting block index adjusted value;
Said code check value is greater than said code check critical value; The said crc error number of said user side in the second preset receiver window is less than or equal to the second preset limit value; And when the said second preset limit value is preset limit value less than said first; Heighten said transmitting block index value, obtain said transmitting block index adjusted value.
Preferably, above-mentioned described method, said method also comprises:
Said code check value is greater than said code check critical value; When the said crc error number of said user side in the second preset receiver window preset limit value less than the said first preset limit value greater than said second; Do not change said transmitting block index value, with said transmitting block index value as said transmitting block index adjusted value.
Preferably, above-mentioned described method, said method also comprises:
Judge said transmitting block index adjusted value whether greater than the corresponding transmitting block index maximum of a preset maximal rate, if judged result is for being, then with said transmitting block index maximum as best transmission piece index value; If judged result is not for, then with said transmitting block index adjusted value as said best transmission piece index value.
Preferably, above-mentioned described method, said method also comprises:
Obtain the current transmitting block index apportioning cost that send the base station; Whether the difference that last time reports the transmitting block index value of judging said current transmitting block index apportioning cost and said user side is greater than a predetermined threshold value; If judged result is for being then said best transmission piece index value to be added that an offset is as the current transmitting block index value that reports; If judged result is not for, then with said best transmission piece index value as the said current transmitting block index value that reports.
Preferably, above-mentioned described method, the said second preset receiver window is equal to or less than the said first preset receiver window.
Preferably, above-mentioned described method, the said second preset limit value is zero.
Preferably; Above-mentioned described method; Saidly turn down said transmitting block index value; The step that obtains said transmitting block index adjusted value specifically comprises: improve transmitting block index adjustment step-length, transmitting block index adjustment step-length obtained said transmitting block index adjusted value after said transmitting block index value deducted and improves.
Preferably; Above-mentioned described method; Saidly heighten said transmitting block index value; The step that obtains said transmitting block index adjusted value specifically comprises: reduce transmitting block index adjustment step-length, said transmitting block index value adds that reducing back transmitting block index adjustment step-length obtains said transmitting block index adjusted value.
The device that the present invention also provides a kind of channel quality indicator CQI to report on the other hand is applied to time division high speed downlink and divides into groups to insert the TD-HSDPA system, and said device comprises:
The primary Calculation unit is used to obtain the current channel quality of channel to be measured, according to said current channel quality, calculates the code check value and the transmitting block index value of said channel to be measured;
First judging unit is used to judge that whether said code check value is greater than a code check critical value;
Transmitting block index value adjustment unit; Be used for, when said code check value greater than a code check critical value, the cyclic redundancy check (CRC) error number of user side in the first preset receiver window is during more than or equal to the first preset limit value; Turn down said transmitting block index value, obtain the transmitting block index adjusted value; And work as said code check value greater than said code check critical value; The said crc error number of said user side in the second preset receiver window is less than or equal to the second preset limit value; And when the said second preset limit value is preset limit value less than said first; Heighten said transmitting block index value, obtain said transmitting block index adjusted value.
Preferably, above-mentioned described device, said device also comprises:
Whether second judging unit is used to judge said transmitting block index adjusted value greater than the corresponding transmitting block index maximum of a preset maximal rate, if judged result is for being, then with said transmitting block index maximum as best transmission piece index value; If judged result is not for, then with said transmitting block index adjusted value as said best transmission piece index value.
Preferably, above-mentioned described device, said device also comprises:
The 3rd judging unit; Whether the difference that last time reports the transmitting block index value that is used to judge the current transmitting block index apportioning cost that sends the base station and said user side is greater than a predetermined threshold value; If judged result is for being then said best transmission piece index value to be added that an offset is as the current transmitting block index value that reports; If judged result is not for, then with said best transmission piece index value as the said current transmitting block index value that reports.
In the technique scheme at least one has following beneficial effect:
The said method and apparatus of the specific embodiment of the invention calculates in prior art on the basis of CQI value, has increased the standard that CRC selects as transmission block, can finely tune to adapt to various environment the error of high code check;
Regularization condition for increasing or reduce the transmitting block index value respectively adopts two kinds of different window length to realize, can guarantee to receive the Block Error Rate (BLER) of HS-DSCH, can guarantee the throughput-maximized of system again;
Increase the maximal rate thresholding and guaranteed not exceed when transmission block adjusts upward the ability of receiver; Also the step-length according to the base station downward modulation compensates the transmitting block index value that reports; Therefore can descend optimum modulation system and code efficiency by this channel circumstance of Dynamic Selection; Thereby obtain maximum throughput, improve the utilance of system.
Description of drawings
Fig. 1 is the schematic flow sheet of the preliminary algorithm of CQI in the said method of the specific embodiment of the invention;
Fig. 2 adjusts the schematic flow sheet of CQI value according to CRC result for the said method of the specific embodiment of the invention;
Fig. 3 is the wherein schematic flow sheet of an embodiment of the method for the invention;
Fig. 4 is the structural representation of device according to the invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing and specific embodiment to describe the present invention below.
Method that channel quality indicator CQI according to the invention reports and device; Pass through the measured channel environmental quality at the prior art user terminal; Confirm under the basis of code check, transmission block size and transmitting block index value; Also increased the standard of CRC, can regulate the error under the high code check channel circumstance, to adapt to various environment as fine setting transmitting block index value; In addition; For preventing to finely tune the maximum capacity that the code check that improves the back exceeds the demodulation of the actual ability of receiver; Also the transmission block corresponding code rate is carried out the maximal rate restriction,, improve HSDPA professional reliability and high efficiency so that user terminal feeds back preferable CQI value to the base station.
The method that CQI according to the invention reports mainly comprises following two steps:
Step 1 obtains the current channel quality of channel to be measured, according to said current channel quality, calculates the code check value and the transmitting block index value of said channel to be measured;
Step 2 according to the error number of the cyclic redundancy check (CRC) in the preset receiver window of user side, is adjusted said transmitting block index value, obtains the transmitting block index adjusted value.
According to current channel quality, primary Calculation CQI value comprises code check value, modulation system, transmission block magnitude numerical value and transmitting block index value through step 1; Utilize the standard of CRC through step 2, to obtain the optimum value of reporting as fine setting transmitting block index value.
Below will the process of above-mentioned steps one and step 2 be elaborated.
Like Fig. 1 is the schematic flow sheet of the preliminary algorithm of CQI in the said method of the specific embodiment of the invention, consults Fig. 1, carries out the CQI primary Calculation and comprises step:
S101 obtains the current channel quality of channel to be measured;
S102 according to said current channel quality, confirms the modulation system of current channel, and from rate tables, searches and said current channel quality corresponding code rate value, and this rate tables is to set up according to the mapping relations between code check and the channel quality;
S103 according to the physical resource of said code check value and base station assigns, calculates and obtains the transmission block size estimation; And, from the transmission block table, read the transmitting block index value of current channel quality according to said transmission block size estimation.
It will be understood by those skilled in the art that and utilize above-mentioned step S101 to S103, can primary Calculation obtain the CQI reported result.
As Fig. 2 be the method for the invention according to CRC result, S201 to S203 obtains the schematic flow sheet that the transmitting block index value is adjusted to above-mentioned steps, consults Fig. 2, this adjustment process begins from step S201, comprising:
Step S202, initialization is so that transmitting block index is adjusted step-length and the initialization of Data Receiving statistic window and made each counter O reset;
Step S203; Whether the code check value that the CQI initial calculation obtains among the determining step S101 to S103 is during more than or equal to a code check critical value, and this code check critical value is the numerical value more than or equal to 0.8, it will be appreciated by those skilled in the art that; When code check more than or equal to 0.8 the time, channel condition is better;
If judged result is for being then downward execution in step S204;
If judged result is not, then downward execution in step S208 jumps out this adjustment process;
Step S204, the crc error number in the statistics receiver window;
When the crc error number is preset limit value more than or equal to one first in the first preset receiver window, then downward execution in step S205;
The crc error number is less than or equal to one second when presetting limit value in the second preset receiver window is long; Then downward execution in step S206; Wherein this second preset limit value is less than this first preset limit value, and this second preset receiver window is grown up long in this first preset receiver window;
When said crc error number in the second preset receiver window is preset limit value less than the said first preset limit value and greater than said second, then downward execution in step S207;
Step S205; Turn down the transmitting block index value; Also promptly improve transmitting block index adjustment step-length; The transmitting block index value that said step S103 is obtained deducts and improves back transmitting block index adjustment step-length and obtain said transmitting block index adjusted value, simultaneously the reception data window of zero clearing counter and current downward adjustment;
Step S206; Heighten the transmitting block index value; Also promptly reduce transmitting block index adjustment step-length; The transmitting block index value that said step S103 is obtained adds that reducing back transmitting block index adjustment step-length obtains said transmitting block index adjusted value, simultaneously zero clearing counter and the current reception data window that adjusts upward;
Step S207 does not change said transmitting block index value, with former said transmitting block index value as said transmitting block index adjusted value, simultaneously zero clearing counter and current reception data window;
Step S208, the process of adjustment CQI value is carried out and is finished.
Through the said method of the specific embodiment of the invention; When utilizing CRC result to adjust the CQI value; Adopt the different crc error threshold values of two kinds of different receiver windows long (also promptly the first preset receiver window is long long with the second preset receiver window) (i.e. the first preset limit value and the second preset limit value) to judge respectively for the condition that increases or reduce the transmitting block index value with two kinds; Throughput-maximized in order to the Block Error Rate (BLER) that guarantee to receive HS-DSCH and system.
In the statistics receiver window in the process of crc error number; When the crc error number has reached the first preset limit value; But the long no show of the first preset receiver window; When promptly the data in the first preset receiver window were not also filled up, the also downward execution in step S205 of program promptly carried out adjustment transmitting block index value step downwards.And carry out upwards or when not adjusting transmitting block index value step, then need the data of the second preset receiver window in long to fill up, according to the crc error number that fills up data, judgement adjusts upward or does not adjust the transmitting block index value.
In addition, it will be understood by those skilled in the art that when utilizing CRC result to adjust the CQI value, also can adopt same receiver window length to judge for increasing or reduce the transmitting block index value, and the second preset limit value can be zero for condition.Also promptly when crc error number in the first preset receiver window during more than or equal to the first preset limit value, execution in step S205, reduction transmitting block index value; When the crc error number was zero in the first preset receiver window is long, then downward execution in step S206 increased the transmitting block index value; When said crc error number was preset limit value less than said first in the first preset receiver window is long, then downward execution in step S207 did not change the transmitting block index value.
Like Fig. 3 is the schematic flow sheet of the method for the invention first embodiment; In this first embodiment; The code check that said method also reports CQI carries out the maximal rate restriction; Exceed the actual ability that can demodulation of receiver with the code check that prevents to finely tune raising, and under the transmitting block index value of base station assigns timing, add when reporting the transmitting block index value that an offset reports by way of compensation.
Consult Fig. 3, concrete, the method for the invention first embodiment comprises:
Step S301; Current channel quality according to channel to be measured between the transmitter and receiver; Primary Calculation CQI value comprises and confirms optimum code check value, modulation system and confirm best transmission block size and transmitting block index value according to code check, also is the implementation of Fig. 1 steps flow chart;
Whether step S302 judges said code check value greater than a code check critical value, if judged result is for being, execution in step S303 downwards then, if judged result is not for, then with said transmitting block index value as current transmitting block index value of reporting, downward execution in step S310;
Step S303 according to the error number of the cyclic redundancy check (CRC) in the preset receiver window of user side, adjusts said transmitting block index value, obtains the transmitting block index adjusted value;
Above-mentioned step S302 and S303; Be used for adjusting the transmitting block index value according to CRC result; Also be the implementation of Fig. 2 steps flow chart, on the transmitting block index value basis that step S301 produces according to the CQI table, utilize CRC to finely tune to reach the effect of the maximum HSDPA of raising throughput;
Step S304 judges said transmitting block index adjusted value whether greater than the corresponding transmitting block index maximum of a preset maximal rate, if judged result is for being, and execution in step S305 downwards then, if judged result is not for, then downward execution in step S306;
Step S305, with said transmitting block index maximum as best transmission piece index value;
Step S306, with said transmitting block index adjusted value as said best transmission piece index value;
Above-mentioned step S304 to S306 is used for transmitting block index value corresponding code rate is carried out the maximal rate restriction, exceeds the ability of the actual ability of receiver demodulation to prevent the code check of finely tuning raising, thereby causes data transmission fails, causes the decline rapidly of throughput.
Above-mentioned steps S301 to S306 through the said method of the specific embodiment of the invention; Can regulate the error under the high code check channel circumstance; Adapting to variant environment, and reach and prevent to finely tune the effect that the code check that improves the back exceeds receiver actual demodulation maximum capacity.
In addition; When confirming that according to the sequential relationship of HS-SICH and HS-SCCH base station downward modulation user side reports the transmitting block index value; The said method of the specific embodiment of the invention is also according to the step-length of the transmitting block index value of base station downward modulation; Obtain numerical value as the transmitting block index value of reporting with regulating after the best transmission piece index value that obtains adds an offset, be used to compensate the base station for the excessive numerical value of transmitting block index apportioning cost adjustment.Particularly, the said method of the specific embodiment of the invention is passed through step S307 to step S309 realization said process;
Said step S307; Obtain the current transmitting block index apportioning cost that send the base station; Whether the difference that last time reports the transmitting block index value of judging said current transmitting block index apportioning cost and said user side is greater than a predetermined threshold value, if judged result is for being then downward execution in step S308; If judged result denys then downward execution in step S309;
Said step S308 adds that with said best transmission piece index value an offset is as the current transmitting block index value that reports;
Said step S309, then with said best transmission piece index value as the said current transmitting block index value that reports;
At last at step S310, to the base station report said current report the transmitting block index value and with the said current corresponding current code check value that reports of transmitting block index value that reports.
More than comprehensive,, utilize CRC result to adjust the CQI value, can make the preferable CQI message of terminal feedback give the base station through the said method of the specific embodiment of the invention; In addition; For improving the throughput of HSDPA; In the said method of the specific embodiment of the invention; Comprise further that also qualification reports maximal rate according to receiver actual reception ability, and regulate the current process that reports the transmitting block index value, with professional reliability and the high efficiency of further raising HSDPA according to the transmitting block index value of base station assigns.
The device that the present invention also provides a kind of channel quality indicator CQI to report on the other hand is applied to time division high speed downlink packet access technique TD-HSDPA system, and Fig. 4 is the structural representation of said device, consults Fig. 4, and said device 10 comprises:
Primary Calculation unit 11 is used to obtain the current channel quality of channel to be measured, according to said current channel quality, calculates the code check value and the transmitting block index value of said channel to be measured;
First judging unit 12 is used to judge that whether said code check value is greater than a code check critical value;
Transmitting block index value adjustment unit 13; Be used for; When said code check value greater than a code check critical value; When the cyclic redundancy check (CRC) error number of judges end in the first preset receiver window preset limit value more than or equal to first, turn down said transmitting block index value, obtain the transmitting block index adjusted value; And work as said code check value greater than said code check critical value; Judge that the said crc error number of said user side in the second preset receiver window is less than or equal to the second preset limit value; And when the said second preset limit value is preset limit value less than said first; Heighten said transmitting block index value, obtain said transmitting block index adjusted value.
In addition, said device 10 also comprises:
Whether second judging unit 14 is used to judge said transmitting block index adjusted value greater than the corresponding transmitting block index maximum of a preset maximal rate, if judged result is for being, then with said transmitting block index maximum as best transmission piece index value; If judged result is not for, then with said transmitting block index adjusted value as said best transmission piece index value;
The 3rd judging unit 15; Whether the difference that last time reports the transmitting block index value that is used to judge the current transmitting block index apportioning cost that sends the base station and said user side is greater than a predetermined threshold value; If judged result is for being then said best transmission piece index value to be added that an offset is as the current transmitting block index value that reports; If judged result is not for, then with said best transmission piece index value as the said current transmitting block index value that reports;
CQI value output unit 16 is used for reporting to the base station calculate obtaining the CQI value, comprise said current report transmitting block index value, modulation system and with said current transmitting block index value corresponding code rate, the transport block data size etc. of reporting.
Device according to the invention; Calculate in prior art on the basis of CQI value; Increased the standard that CRC selects as transmission block, can finely tune to adapt to various environment, increased the ability that the maximal rate thresholding guarantees not exceed when transmission block adjusts upward receiver the error of high code check; Also the step-length according to the base station downward modulation compensates the transmitting block index value that reports; Therefore can optimum down modulation system and the code efficiency of this channel circumstance of Dynamic Selection, thus maximum throughput obtained, improve the utilance of system.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (11)
1. the method that channel quality indicator CQI reports is applied to time division high speed downlink and divides into groups to insert the TD-HSDPA system, it is characterized in that said method comprises:
Obtain the current channel quality of channel to be measured,, calculate the code check value and the transmitting block index value of said channel to be measured according to said current channel quality;
Said code check value is greater than a code check critical value, and the cyclic redundancy check (CRC) error number of user side in the first preset receiver window turn down said transmitting block index value during more than or equal to the first preset limit value, obtains the transmitting block index adjusted value;
Said code check value is greater than said code check critical value; And when the said crc error number of said user side in the second preset receiver window is less than or equal to the second preset limit value; Heighten said transmitting block index value; Obtain said transmitting block index adjusted value, the wherein said second preset limit value is less than the said first preset limit value.
2. the method for claim 1 is characterized in that, said method also comprises:
Said code check value is greater than said code check critical value; When the said crc error number of said user side in the second preset receiver window preset limit value less than the said first preset limit value greater than said second; Do not change said transmitting block index value, with said transmitting block index value as said transmitting block index adjusted value.
3. method as claimed in claim 2 is characterized in that, said method also comprises:
Judge said transmitting block index adjusted value whether greater than the corresponding transmitting block index maximum of a preset maximal rate, if judged result is for being, then with said transmitting block index maximum as best transmission piece index value; If judged result is not for, then with said transmitting block index adjusted value as said best transmission piece index value.
4. method as claimed in claim 3 is characterized in that, said method also comprises:
Obtain the current transmitting block index apportioning cost that send the base station; Whether the difference that last time reports the transmitting block index value of judging said current transmitting block index apportioning cost and said user side is greater than a predetermined threshold value; If judged result is for being then said best transmission piece index value to be added that an offset is as the current transmitting block index value that reports; If judged result is not for, then with said best transmission piece index value as the said current transmitting block index value that reports.
5. according to claim 1 or claim 2 method is characterized in that, the said second preset receiver window is equal to or less than the said first preset receiver window.
6. according to claim 1 or claim 2 method is characterized in that, the said second preset limit value is zero.
7. the method for claim 1 is characterized in that, saidly turns down said transmitting block index value, and the step that obtains said transmitting block index adjusted value specifically comprises:
Improve transmitting block index adjustment step-length, transmitting block index adjustment step-length obtained said transmitting block index adjusted value after said transmitting block index value deducted and improves.
8. the method for claim 1 is characterized in that, saidly heightens said transmitting block index value, and the step that obtains said transmitting block index adjusted value specifically comprises:
Reduce transmitting block index adjustment step-length, said transmitting block index value adds that reducing back transmitting block index adjustment step-length obtains said transmitting block index adjusted value.
9. the device that channel quality indicator CQI reports is applied to time division high speed downlink and divides into groups to insert the TD-HSDPA system, it is characterized in that said device comprises:
The primary Calculation unit is used to obtain the current channel quality of channel to be measured, according to said current channel quality, calculates the code check value and the transmitting block index value of said channel to be measured;
First judging unit is used to judge that whether said code check value is greater than a code check critical value;
Transmitting block index value adjustment unit; Be used for, when said code check value greater than a code check critical value, and the cyclic redundancy check (CRC) error number of user side in the first preset receiver window is during more than or equal to the first preset limit value; Turn down said transmitting block index value, obtain the transmitting block index adjusted value; And work as said code check value greater than said code check critical value; And the said crc error number of said user side in the second preset receiver window is less than or equal to the second preset limit value; Heighten said transmitting block index value; Obtain said transmitting block index adjusted value, the wherein said second preset limit value is less than the said first preset limit value.
10. device as claimed in claim 9 is characterized in that, said device also comprises:
Whether second judging unit is used to judge said transmitting block index adjusted value greater than the corresponding transmitting block index maximum of a preset maximal rate, if judged result is for being, then with said transmitting block index maximum as best transmission piece index value; If judged result is not for, then with said transmitting block index adjusted value as said best transmission piece index value.
11. device as claimed in claim 10 is characterized in that, said device also comprises:
The 3rd judging unit; Whether the difference that last time reports the transmitting block index value that is used to judge the current transmitting block index apportioning cost that sends the base station and said user side is greater than a predetermined threshold value; If judged result is for being then said best transmission piece index value to be added that an offset is as the current transmitting block index value that reports; If judged result is not for, then with said best transmission piece index value as the said current transmitting block index value that reports.
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| CN104012020A (en) * | 2011-12-30 | 2014-08-27 | 京信通信系统（中国）有限公司 | Method, device and system for detecting transmission link |
| CN102457914B (en) * | 2012-01-11 | 2017-11-10 | 中兴通讯股份有限公司 | The transmission method of upstream data and uplink scheduling information, device |
| CN102904670B (en) * | 2012-03-31 | 2015-03-18 | 展讯通信（上海）有限公司 | Device and method for obtaining channel quality indicator, mobile terminal and communication system |
| WO2015089740A1 (en) | 2013-12-17 | 2015-06-25 | 华为技术有限公司 | Data transmission apparatus and method |
| CN105338565B (en) * | 2014-06-30 | 2018-07-27 | 展讯通信（上海）有限公司 | The measurement method and device of channel status |
| CN106982172B (en) * | 2016-01-18 | 2020-04-28 | 华为技术有限公司 | Method and communication device for determining size of transmission block of polarization code |
| CN108631937B (en) * | 2017-03-24 | 2020-06-02 | 华为技术有限公司 | Information processing method, device and equipment |
| CN108174413B (en) * | 2017-12-26 | 2020-09-01 | Oppo广东移动通信有限公司 | Parameter adjusting method and device |
| CN110958711B (en) * | 2018-09-27 | 2023-09-12 | 中兴通讯股份有限公司 | Competition window adjusting method and device, storage medium and electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101207553A (en) * | 2006-12-18 | 2008-06-25 | 中兴通讯股份有限公司 | Method for determining transmission block size in high speed downlink grouping switch-in business |
| CN101359983A (en) * | 2008-10-08 | 2009-02-04 | 北京新邮通通信设备有限公司 | HS-SICH information bearing and encoding method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101207553A (en) * | 2006-12-18 | 2008-06-25 | 中兴通讯股份有限公司 | Method for determining transmission block size in high speed downlink grouping switch-in business |
| CN101359983A (en) * | 2008-10-08 | 2009-02-04 | 北京新邮通通信设备有限公司 | HS-SICH information bearing and encoding method |
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