CN104717038A - Method and device for distributing modulation code strategies - Google Patents

Method and device for distributing modulation code strategies Download PDF

Info

Publication number
CN104717038A
CN104717038A CN201510115183.6A CN201510115183A CN104717038A CN 104717038 A CN104717038 A CN 104717038A CN 201510115183 A CN201510115183 A CN 201510115183A CN 104717038 A CN104717038 A CN 104717038A
Authority
CN
China
Prior art keywords
code word
mcs
data transfer
ratio
adopts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510115183.6A
Other languages
Chinese (zh)
Other versions
CN104717038B (en
Inventor
王鑫芯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Comba Network Systems Co Ltd
Original Assignee
Comba Telecom Technology Guangzhou Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Comba Telecom Technology Guangzhou Ltd filed Critical Comba Telecom Technology Guangzhou Ltd
Priority to CN201510115183.6A priority Critical patent/CN104717038B/en
Publication of CN104717038A publication Critical patent/CN104717038A/en
Application granted granted Critical
Publication of CN104717038B publication Critical patent/CN104717038B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1657—Implicit acknowledgement of correct or incorrect reception, e.g. with a moving window
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource

Abstract

The invention discloses a method and device for distributing modulation code strategies. The method and device are used for increasing the system throughput and the data demodulation success rate. The method includes the steps that a data transmission feedback state corresponding to each codon used on a multiplex channel of a base station is monitored in real time, the feedback state of each codon in a preset period is counted, the channel quality of the multiplex channel using each codon is assessed according to a statistical result, the codon adopted in current data transmission is selected, according to the channel quality of an RB distributed to the codon adopted in current data transmission, the value range of an MCS on the codon adopted by the multiplex channel in current data transmission is determined, and in combination with feedback information of the codon adopted in current data transmission in the preset period, the MCS of the codon adopted in current data transmission is distributed to the multiplex channel within the value range of the MCS of the adopted codon. Thus, the data demodulation success rate can be guaranteed and the throughput of a user is increased.

Description

A kind of distribution method of modulating-coding strategy and device
Technical field
The present invention relates to the communications field, particularly a kind of distribution method of modulating-coding strategy and device.
Background technology
At Long Term Evolution (Long Term Evolution, LTE) in system, introduce multiple-input and multiple-output (Multi-input Multi-output, MIMO) technology, in order to the capacity of the transmission rate and system that improve data, the implementation of MIMO technology has two kinds, is diversity and multiplexing respectively.Wherein, multiplex mode can improve the throughput of system.
In LTE system, base station is meeting certain service quality (Quality ofService by channel dispatch, QoS) on basis, expect to distribute more resource to more user, on the channel resource that base station scheduling distributes, by Adaptive Modulation and Coding (Adaptive Modulation and Coding, AMC) configuration to channel transmission parameters can be realized, such as, configurable modulating-coding strategy (Modulation andCoding Scheme, MCS), MIMO mode etc., by the configuration of these channel transmission parameters, can the change of correspondingly adaptive channel, ensure the transmission quality of channel.
The transmission of multipling channel generally at least adopts two code words (such as, code word 0, code word 1 ..., code word n) carry out the transmission of data simultaneously, adopt identical frequency spectrum resource and identical antenna transmitted power, like this, the user throughput that can effectively improve.
Multipling channel is higher to channel quality requirement, and when channel quality is bad, although adopt multiple code word to transmit data simultaneously, throughput can not ensure, the probability of data unsuccessful demodulation also can decline simultaneously.
Summary of the invention
The embodiment of the present invention provides a kind of distribution method and device of modulating-coding strategy, reduces and the problem of data unsuccessful demodulation probability decline in order to solve the throughput still adopting multiple codeword transmission to bring when the channel quality of multipling channel is poor in prior art.
The concrete technical scheme that the embodiment of the present invention provides is as follows:
A distribution method for modulating-coding strategy, comprising:
The base station data transmission feedback state corresponding to each code word used on multipling channel is monitored in real time, and the feedback states of each code word in preset time period is added up, wherein, described feedback states at least comprises: send the ack/nack ACK/NACK message that receives terminal feedback after data to terminal and exceed setting-up time and receive feedback information not yet, or, receive terminal send data after to terminal feedback ACK/NACK message and exceed setting-up time not yet to terminal feedback information;
Base station uses channel quality during each code word to assess to multipling channel according to statistics respectively, and according to the code word that assessment result selects this data transfer to adopt;
The channel quality of the Resource Block RB that the code word that base station adopts according to described data transfer is distributed, determine the span of the modulating-coding strategy MCS in the code word that multipling channel adopts described data transfer, in conjunction with the feedback information of code word in preset time period that described data transfer adopts, for multipling channel distributes the MCS of the code word that this data transfer adopts in the MCS span in the code word that described data transfer adopts.
Like this, when partial codeword channel quality is poor, a measured code word of selective channel matter is transmitted, and ensures data demodulates success rate, when whole code word channel quality is better, adopts all code words of multipling channel to carry out transfer of data, improves the throughput of user.Further, MCS span is determined according to the channel quality of the code word of transmission data in base station, is the MCS that the code assignment of multipling channel transmission data is suitable, can improves the probability of data Successful transmissions in MCS span.
Preferably, the base station data transmission feedback information corresponding to each code word used on multipling channel is monitored in real time, and is added up by the feedback information of each code word in preset time period, specifically comprises:
Base station is that each code word that each code word and descending multipling channel that up multipling channel uses use safeguards a statistics interface of sliding respectively, and described slip statistics interface is for showing feedback states corresponding to corresponding codewords and statistics moment corresponding to described feedback states;
When difference between the statistics moment and current time of a feedback states shown in sliding statistics interface is greater than described preset time period, the feedback states of described statistics moment record is deleted in described slip statistics interface.
Preferably, base station uses channel quality during each code word to assess to multipling channel according to statistics respectively, and according to the code word that assessment result selects this data transfer to adopt, specifically comprises:
If this data transfer is transmitting uplink data, base station in the slip of each code word that up multipling channel uses statistics interface continuously display NACK message or/and exceed setting-up time and calculate in real time to the number of times of terminal feedback information not yet;
When in the slip statistics interface that base station judges any one code word continuously display NACK message or/and exceed setting-up time be greater than preset times thresholding to the number of times of terminal feedback information not yet time, do not adopt corresponding code word to carry out the transmission of this secondary data;
When in the slip statistics interface that base station judges each code word continuously display NACK message or/and exceed setting-up time be all greater than preset times thresholding to the number of times of terminal feedback information not yet time, adopt any one code word to carry out the transmission of this secondary data;
When in the slip statistics interface that base station judges each code word continuously display NACK message or/and exceed setting-up time be all not more than preset times thresholding to the number of times of terminal feedback information not yet time, adopt all code words to carry out the transmission of this secondary data;
And,
If this data transfer is downlink data transmission, base station in the slip of each code word that descending multipling channel uses statistics interface continuously display NACK message or/and exceed the number of times that setting-up time do not receive feedback information yet and calculate in real time;
When in the slip statistics interface that base station judges any one code word continuously display NACK message or/and exceed number of times that setting-up time do not receive feedback information be yet greater than preset times thresholding time, do not adopt corresponding code word to carry out the transmission of this secondary data;
When in the slip statistics interface that base station judges each code word continuously display NACK message or/and exceed number of times that setting-up time do not receive feedback information yet be all greater than preset times thresholding time, adopt any one code word to carry out the transmission of this secondary data;
When in the slip statistics interface that base station judges each code word continuously display NACK message or/and exceed number of times that setting-up time do not receive feedback information yet be all not more than preset times thresholding time, adopt all code words to carry out the transmission of this secondary data.
Preferably, the feedback information of code word in preset time period that base station adopts in conjunction with described data transfer, for multipling channel distributes the MCS of the code word that this data transfer adopts in the MCS span in the code word that described data transfer adopts, specifically comprise:
If this data transfer is transmitting uplink data, in the slip statistics interface that base station calculates the code word that this data transfer adopts, NACK message number and time-out do not account for the first ratio of total feedback states number yet to the number sum of terminal feedback information, described first ratio and the first ratio thresholding preset and the second default ratio thresholding are compared, according to comparative result, for multipling channel distributes the MCS of the code word that this data transfer adopts in the MCS span in the code word that described data transfer adopts, wherein, described first ratio thresholding is less than described second ratio thresholding,
If this data transfer is downlink data transmission, the number sum that in the slip statistics interface that base station calculates the code word that this data transfer adopts, NACK message number and time-out do not receive feedback information yet accounts for the second ratio of total feedback states number, described second ratio and the first ratio thresholding preset and the second default ratio thresholding are compared, according to comparative result, for multipling channel distributes the MCS of the code word that this data transfer adopts in the MCS span in the code word that described data transfer adopts, wherein, described first ratio thresholding is less than described second ratio thresholding.
Preferably, described first ratio or described second ratio are compared with the first ratio thresholding preset and the second default ratio thresholding, according to comparative result, for multipling channel distributes the MCS of the code word that this data transfer adopts in the MCS span in the code word that described data transfer adopts, specifically comprise:
If described first ratio or described second ratio are less than or equal to described first ratio thresholding, then MCS maximum in the MCS span in the code word that adopts for described data transfer of the base station MCS that distributes the code word that this data transfer adopts for multipling channel;
Like this, the throughput of system can be improved.
If described first ratio or described second ratio are more than or equal to described second ratio thresholding, then MCS minimum in the MCS span in the code word that adopts for described data transfer of the base station MCS that distributes the code word that this data transfer adopts for multipling channel;
Like this, data demodulates success rate can be improved.
If described first ratio or described second ratio are greater than described first ratio thresholding, and be less than described second ratio thresholding, then base station calculates the channel quality equivalence value of the RB that code word that described data transfer adopt is distributed, and obtain MCS corresponding to described channel quality equivalence value, and the MCS distributing the code word that this data transfer adopts for multipling channel is the MCS that described channel quality equivalence value is corresponding.
Preferably, be greater than described first ratio thresholding in described first ratio or described second ratio, and when being less than described second ratio thresholding, comprise further:
If the MCS that described channel quality equivalence value is corresponding is greater than the maximum MCS in the MCS span in code word that described data transfer adopt, then the maximum MCS in the MCS span in the code word that the MCS distributing the code word that this data transfer adopts for multipling channel adopts for described data transfer;
If the MCS that described channel quality equivalence value is corresponding is less than the minimum MCS in the MCS span in code word that described data transfer adopt, then the minimum MCS in the MCS span in the code word that the MCS distributing the code word that this data transfer adopts for multipling channel adopts for described data transfer.
A distributor for modulating-coding strategy, comprising:
Monitoring unit, monitor in real time for the data transmission feedback state corresponding to each code word used on multipling channel, and the feedback states of each code word in preset time period is added up, wherein, described feedback states at least comprises: send the ack/nack ACK/NACK message that receives terminal feedback after data to terminal and exceed setting-up time and receive feedback information not yet, or, receive terminal send data after to terminal feedback ACK/NACK message and exceed setting-up time not yet to terminal feedback information;
Assessment unit, for using channel quality during each code word to assess to multipling channel respectively according to statistics, and according to the code word that assessment result selects this data transfer to adopt;
Allocation units, for the channel quality of the RB that the code word adopted according to described data transfer is distributed, determine the span of the MCS in the code word that multipling channel adopts described data transfer, in conjunction with the feedback information of code word in preset time period that described data transfer adopts, for multipling channel distributes the MCS of the code word that this data transfer adopts in the MCS span in the code word that described data transfer adopts.
Like this, when partial codeword channel quality is poor, a measured code word of selective channel matter is transmitted, and ensures data demodulates success rate, when whole code word channel quality is better, adopts all code words of multipling channel to carry out transfer of data, improves the throughput of user.Further, MCS span is determined according to the channel quality of the code word of transmission data in base station, is the MCS that the code assignment of multipling channel transmission data is suitable, can improves the probability of data Successful transmissions in MCS span.
Preferably, to monitor in real time in the data transmission feedback information corresponding to each code word used on multipling channel, and when the feedback information of each code word in preset time period is added up, described monitoring unit specifically for:
For each code word that each code word that up multipling channel uses and descending multipling channel use safeguards a statistics interface of sliding respectively, described slip statistics interface is for showing feedback states corresponding to corresponding codewords and statistics moment corresponding to described feedback states;
When difference between the statistics moment and current time of a feedback states shown in sliding statistics interface is greater than described preset time period, the feedback states of described statistics moment record is deleted in described slip statistics interface.
Preferably, using channel quality during each code word to assess to multipling channel respectively according to statistics, and during the code word selecting this data transfer to adopt according to assessment result, described assessment unit specifically for:
If this data transfer is transmitting uplink data, in the slip of each code word that up multipling channel uses statistics interface continuously display NACK message or/and exceed setting-up time and calculate in real time to the number of times of terminal feedback information not yet;
When in the slip statistics interface judging any one code word continuously display NACK message or/and exceed setting-up time be greater than preset times thresholding to the number of times of terminal feedback information not yet time, do not adopt corresponding code word to carry out the transmission of this secondary data;
When in the slip statistics interface judging each code word continuously display NACK message or/and exceed setting-up time be all greater than preset times thresholding to the number of times of terminal feedback information not yet time, adopt any one code word to carry out the transmission of this secondary data;
When in the slip statistics interface judging each code word continuously display NACK message or/and exceed setting-up time be all not more than preset times thresholding to the number of times of terminal feedback information not yet time, adopt all code words to carry out the transmission of this secondary data;
And,
If this data transfer is downlink data transmission, in the slip of each code word that descending multipling channel uses statistics interface continuously display NACK message or/and exceed the number of times that setting-up time do not receive feedback information yet and calculate in real time;
When in the slip statistics interface judging any one code word continuously display NACK message or/and exceed number of times that setting-up time do not receive feedback information be yet greater than preset times thresholding time, do not adopt corresponding code word to carry out the transmission of this secondary data;
When in the slip statistics interface judging each code word continuously display NACK message or/and exceed number of times that setting-up time do not receive feedback information yet be all greater than preset times thresholding time, adopt any one code word to carry out the transmission of this secondary data;
When in the slip statistics interface judging each code word continuously display NACK message or/and exceed number of times that setting-up time do not receive feedback information yet be all not more than preset times thresholding time, adopt all code words to carry out the transmission of this secondary data.
Preferably, at the feedback information of the code word adopted in conjunction with described data transfer in preset time period, in MCS span in the code word that described data transfer adopts for multipling channel distribute the MCS of the code word that this data transfer adopts time, described allocation units specifically for:
If this data transfer is transmitting uplink data, in the slip statistics interface then calculating the code word that this data transfer adopts, NACK message number and time-out do not account for the first ratio of total feedback states number yet to the number sum of terminal feedback information, described first ratio and the first ratio thresholding preset and the second default ratio thresholding are compared, according to comparative result, for multipling channel distributes the MCS of the code word that this data transfer adopts in the MCS span in the code word that described data transfer adopts;
If this data transfer is downlink data transmission, the number sum that in the slip statistics interface then calculating the code word that this data transfer adopts, NACK message number and time-out do not receive feedback information yet accounts for the second ratio of total feedback states number, described second ratio and the first ratio thresholding preset and the second default ratio thresholding are compared, according to comparative result, for multipling channel distributes the MCS of the code word that this data transfer adopts in the MCS span in the code word that described data transfer adopts;
Wherein, described first ratio thresholding is less than described second ratio thresholding.
Preferably, described first ratio or described second ratio are being compared with the first ratio thresholding preset and the second default ratio thresholding, according to comparative result, in MCS span in the code word that described data transfer adopts for multipling channel distribute the MCS of the code word that this data transfer adopts time, described allocation units specifically for:
If described first ratio or described second ratio are less than or equal to described first ratio thresholding, then MCS maximum in the MCS span in the code word that adopts for described data transfer of the base station MCS that distributes the code word that this data transfer adopts for multipling channel;
Like this, the throughput of system can be improved.
If described first ratio or described second ratio are more than or equal to described second ratio thresholding, then MCS minimum in the MCS span in the code word that adopts for described data transfer of the base station MCS that distributes the code word that this data transfer adopts for multipling channel;
Like this, data demodulates success rate can be improved.
If described first ratio or described second ratio are greater than described first ratio thresholding, and be less than described second ratio thresholding, then base station calculates the channel quality equivalence value of the RB that code word that described data transfer adopt is distributed, and obtain MCS corresponding to described channel quality equivalence value, and the MCS distributing the code word that this data transfer adopts for multipling channel is the MCS that described channel quality equivalence value is corresponding.
Preferably, be greater than described first ratio thresholding in described first ratio or described second ratio, and when being less than described second ratio thresholding, described allocation units are further used for:
If the MCS that described channel quality equivalence value is corresponding is greater than the maximum MCS in the MCS span in code word that described data transfer adopt, then the maximum MCS in the MCS span in the code word that the MCS distributing the code word that this data transfer adopts for multipling channel adopts for described data transfer;
If the MCS that described channel quality equivalence value is corresponding is less than the minimum MCS in the MCS span in code word that described data transfer adopt, then the minimum MCS in the MCS span in the code word that the MCS distributing the code word that this data transfer adopts for multipling channel adopts for described data transfer.
Accompanying drawing explanation
Fig. 1 distributes MCS flow chart in the embodiment of the present invention;
Fig. 2 is architecture of base station schematic diagram in the embodiment of the present invention.
Embodiment
The embodiment of the present invention devises a kind of distribution method and device of modulating-coding strategy, base station is added up the ACK/NACK value of feedback of the transmission data of each code word of multipling channel respectively, if the number of times sum that the NACK Times of Feedback of multipling channel code word does not receive feedback with time-out is greater than preset times thresholding, then determine that multipling channel is poor at the channel quality of this code word, do not adopt this code word to carry out transfer of data.Like this, when partial codeword channel quality is poor, a measured code word of selective channel matter is transmitted, and ensures data demodulates success rate, when whole code word channel quality is better, adopts all code words of multipling channel to carry out transfer of data, improves the throughput of user.Further, MCS span is determined according to the channel quality of the code word of transmission data in base station, is the MCS that the code assignment of multipling channel transmission data is suitable, can improves the probability of data Successful transmissions in MCS span.
Below in conjunction with accompanying drawing, the preferred embodiment of the embodiment of the present invention is described in detail.
Consult shown in Fig. 1, in the embodiment of the present invention, when distributing the MCS of this data transfer code word for multipling channel, base station specifically performs following operation:
Step 100: the base station data transmission feedback state corresponding to each code word used on multipling channel is monitored in real time, and the feedback states of each code word in preset time period is added up, wherein, this feedback states at least comprises: send ack/nack (ACK/NACK) message that receives terminal feedback after data to terminal or exceed setting-up time and receive feedback information not yet, and/or, receive terminal send data after to terminal feedback ACK/NACK message or exceed setting-up time not yet to terminal feedback information.
In the embodiment of the present invention, multipling channel adopts multiple code word to carry out the transmission of data, first assesses the channel quality of each code word, determines the channel quality of each code word, then select part or all of code word to carry out the transmission of this secondary data according to the result of assessment.
Such as, in LTE or lte-a system, when base station adopts the multipling channel of two code words to transmit data, multipling channel can adopt code word 0 or/and code word 1 carries out the transmission of data.Base station is monitored in real time to the feedback states of transfer of data in these two code words.For down direction, feedback states refers to: base station receive ACK or the NACK message of terminal feedback, or time-out does not receive feedback message send data to terminal in each code word of multipling channel after; For up direction, feedback states refers to: after terminal sends data to base station, base station is to ACK or the NACK message of terminal feedback, or time-out is not yet to terminal feedback information.
The feedback states of this both direction can carry out monitoring and management by base station, particularly:
Base station is that each code word that each code word and descending multipling channel that up multipling channel uses use safeguards a statistics interface of sliding respectively, and this slip statistics interface is for showing feedback states corresponding to corresponding codewords and statistics moment corresponding to feedback states.
Such as, statistics of sliding shows multiple row in interface, and every a line comprises a feedback states and statistics moment corresponding to this feedback states.
There is certain capacity at statistics of sliding interface, and when the difference between the statistics moment and current time of a feedback states shown in sliding statistics interface is greater than preset time period, the feedback states recorded in this statistics moment is deleted in slip statistics interface.
Such as, a statistics interface of sliding is safeguarded respectively for the code word 0 of up multipling channel and code word 1, in statistics of sliding interface, statistics is in preset time period T, send after data in terminal, the ACK/NACK message of base station feedback or exceed setting-up time feedback information (non-feedback information can be recorded as) not yet;
A statistics interface of sliding is safeguarded respectively for the code word 0 of descending multipling channel and code word 1, in statistics of sliding interface, statistics is in preset time period T, after base station sends data to terminal, the ACK/NACK message of terminal feedback, or in setting-up time, do not receive feedack (non-feedback information can be recorded as).
Wherein, each ACK/NACK message and non-feedback information corresponding record one statistics moment, according to the principle of first in first out, when the time period of the statistics moment distance current time of some ACK/NACK message or non-feedback message exceeds preset time range T, then the statistics of this ACK/NACK message or non-feedback message is deleted in corresponding statistics interface of sliding.
Preset time period T can rule of thumb be arranged, optimization can be upgraded at any time, further, the value that the preset time period T arranged in interface is added up in the slip corresponding with each code word of descending multipling channel of each code word of up multipling channel can be identical value, also can be not identical separately.
Step 110: base station uses channel quality during each code word to assess to multipling channel according to statistics respectively, and according to the code word that assessment result selects this data transfer to adopt.
Particularly, if this data transfer is transmitting uplink data, base station in the slip of each code word that up multipling channel uses statistics interface continuously display NACK message or/and exceed setting-up time and calculate in real time to the number of times of terminal feedback information not yet.
Statistics of sliding shows preset time range internal feedback state and statistics moment corresponding to this feedback states in interface, as mentioned above, such as, the multiple row of display in statistics of sliding interface, every a line comprises a feedback states and statistics moment corresponding to this feedback states, to in statistics interface of sliding, base station occurs that the number of times of the feedback states characterizing bad channel quality is added up continuously, namely, the line number of the ropy feedback states in continuous display list reference road in statistics interface of sliding is added up, wherein, NACK message and exceed setting-up time and be not used for characterizing the feedback states of bad channel quality to terminal feedback information yet, as, in 10 row data of display continuously, 7 row data are had to be NACK message, there are 3 row data for exceeding setting-up time not yet to terminal feedback information, then show to slide continuously show NACK message in statistics interface or/and exceed setting-up time not yet to the number of times of terminal feedback information be 10 times.
When in the slip statistics interface that base station judges any one code word that up multipling channel uses continuously display NACK message or/and exceed setting-up time be greater than preset times thresholding to the number of times of terminal feedback information not yet time, do not adopt corresponding code word to carry out the transmission of this secondary data;
When in the slip statistics interface that base station judges each code word that up multipling channel uses continuously display NACK message or/and exceed setting-up time be all greater than preset times thresholding to the number of times of terminal feedback information not yet time, adopt any one code word to carry out the transmission of this secondary data;
When in the slip statistics interface that base station judges each code word that up multipling channel uses continuously display NACK message or/and exceed setting-up time be all not more than preset times thresholding to the number of times of terminal feedback information not yet time, adopt all code words to carry out the transmission of this secondary data;
And,
If this data transfer is downlink data transmission, base station in the slip of each code word that descending multipling channel uses statistics interface continuously display NACK message or/and exceed the number of times that setting-up time do not receive feedback information yet and calculate in real time;
When in the slip statistics interface that base station judges any one code word that descending multipling channel uses continuously display NACK message or/and exceed number of times that setting-up time do not receive feedback information be yet greater than preset times thresholding time, do not adopt corresponding code word to carry out the transmission of this secondary data;
When in the slip statistics interface that base station judges each code word that descending multipling channel uses continuously display NACK message or/and exceed number of times that setting-up time do not receive feedback information yet be all greater than preset times thresholding time, adopt any one code word to carry out the transmission of this secondary data;
When in the slip statistics interface that base station judges each code word that descending multipling channel uses continuously display NACK message or/and exceed number of times that setting-up time do not receive feedback information yet be all not more than preset times thresholding time, adopt all code words to carry out the transmission of this secondary data.
Wherein, base station judges that the NACK that the some code words of multipling channel are added up in preset time period is or/and when the read-around ratio of the non-feedback message of time-out is greater than preset times thresholding, show that the channel quality of multipling channel in this code word is poor, now, do not adopt this code word to carry out the transmission of this secondary data, the good code word of selective channel quality carries out the transmission of this secondary data.
Such as, in LTE system, multipling channel (upstream or downstream) adopts code word 0 and code word 1 to carry out transfer of data, suppose that preset times thresholding is 10 times, preset time period is 1h, according to monitored results, if the NACK that multipling channel is added up in code word 0 in this 1h is or/and the read-around ratio of the non-feedback message of time-out is greater than 10 times, namely the NACK occurred continuously in slip statistic window interface or/and the number of times of the non-feedback message of time-out is greater than 10 times, then shows that the channel quality of multipling channel in code word 0 is poor;
If the NACK that multipling channel (upstream or downstream) occurs continuously in code word 1 in slip statistic window interface or/and the number of times of the non-feedback message of time-out is not more than 10 times, then shows that the channel quality of multipling channel in code word 1 is better.
In this case, base station selected code word 1 carries out the transmission of this secondary data.
If the NACK that multipling channel (upstream or downstream) all code words are added up in preset time period is or/and the read-around ratio of the non-feedback message of time-out is all greater than preset times thresholding, then select the NACK that adds up in preset time period or/and the minimum code word of the read-around ratio of the non-feedback message of time-out carries out the transmission of this secondary data, or, can in all code words, select arbitrarily a code word to carry out the transmission of this secondary data.
Such as, if the NACK that multipling channel (upstream or downstream) occurs continuously in code word 0 in slip statistic window interface is or/and the number of times of the non-feedback message of time-out is 13 times, the NACK that multipling channel occurs continuously in code word 1 in slip statistic window interface is or/and the number of times of the non-feedback message of time-out is 15 times, then show that the channel quality of multipling channel in code word 0 and code word 1 is all poor, then can select the NACK that occurs continuously or/and the less code word 0 of the number of times of the non-feedback message of time-out carries out the transmission of this secondary data, also a code word can be selected arbitrarily (to get final product code selection word 0, also optional code word 1) carry out the transmission of this secondary data.
If the NACK that multipling channel (upstream or downstream) all code words are added up in preset time period or/and the read-around ratio of the non-feedback message of time-out is all not more than preset times thresholding, then adopts whole code word to carry out the transmission of this secondary data.
Such as, if the NACK that multipling channel (upstream or downstream) occurs continuously in code word 0 in slip statistic window interface is or/and the number of times of the non-feedback message of time-out is not more than 10 times (being such as 5 times), the NACK that multipling channel occurs continuously in code word 1 in slip statistic window interface is or/and the number of times of the non-feedback message of time-out is not more than 10 times (being such as 3 times), show that the channel quality of multipling channel in code word 0 and code word 1 is all better, then adopt code word 0 and code word 1 to carry out the transmission of this secondary data.
Step 120: the Resource Block (ResourceBlock that the code word that base station adopts according to this data transfer is distributed, RB) channel quality, determine the span of the MCS in the code word that multipling channel adopts in this data transfer, in conjunction with the feedback information of code word in preset time period that this data transfer adopts, for multipling channel distributes the MCS of the code word that this data transfer adopts in the MCS span in the code word that this data transfer adopts.
Particularly, first, determine the MCS span in the code word that multipling channel adopts in this data transfer, be described for up multipling channel and descending multipling channel two aspects respectively below.
For up multipling channel, uplink detection reference signal (the SoundingReference Signal that base station is measured according to it, SRS) Signal to Interference plus Noise Ratio (Signal to Interference plus NoiseRatio, SINR) determines the MCS span in the code word that up multipling channel adopts in this data transfer.Concrete grammar is:
A) base station is respectively for the code word that up multipling channel adopts in this data transfer, obtains the SINR value of the SRS of the corresponding RB place frequency range of distributing;
Specifically, if the code word that this data transfer adopts is 1, then only this code word is obtained to the SINR value of the SRS of the corresponding RB place frequency range of distributing, if the code word that this data transfer adopts is n (such as n=2, comprise code word 0 and code word 1), then this n code word is obtained respectively to the SINR value of the SRS of the corresponding RB place frequency range of distributing, wherein n can adopt the maximum of the quantity of code word for this multipling channel.
B) base station is according to the mapping relations of SINR-MCS, obtains the MCS value under different SINR;
Wherein, between SINR-MCS, there are mapping relations, simulating actual conditions can carry out emulation and obtain.
C) span of MCS is determined in base station according to the MCS value obtained.
The span of this MCS is that the minimum value of the MCS value obtained is to the scope between maximum.
For descending multipling channel, the MCS span that base station indicates (ChannelQuality Indication, CQI) to determine in the code word that descending multipling channel adopts in this data transfer according to the channel quality of terminal feedback.Concrete grammar is:
1) base station is respectively for the code word that descending multipling channel adopts in this data transfer, obtains the CQI value of the subband at the corresponding RB place distributed;
Specifically, if the code word that this data transfer adopts is 1, then only this code word is obtained to the CQI value of the subband at the corresponding RB place distributed, if the code word that this data transfer adopts is n (such as n=2, comprise code word 0 and code word 1), then this n code word is obtained respectively to the CQI value of the subband at the corresponding RB place distributed, wherein n can adopt the maximum of the quantity of code word for this multipling channel.
2) mapping relations of CQI and MCS that specify according to agreement of base station, obtain transport block size under each RB place subband CQI that this data transfer code word distributes, and under distributed RB number, meet the minimum MCS of transport block size, this minimum MCS is MCS value corresponding to CQI.
3) transmit the RB distributed corresponding to the code word that adopts according to this, obtain one group of MCS value, thus determine the span of the MCS in the code word that descending multipling channel adopts in this data transfer.
The above-mentioned mode determining the channel quality of multipling channel, can adopt but be not limited to the SINR according to the CQI of terminal to report or the SRS of base station measurement, and other are all can reflect that the data of channel quality all can adopt.
After the span determining the MCS in the code word that multipling channel adopts in this data transfer, further, in conjunction with the feedback information of code word in preset time period that this data transfer adopts, for multipling channel distributes the MCS of the code word that this data transfer adopts in the MCS span in the code word that this data transfer adopts.Concrete grammar is:
The feedback information of code word in preset time period that base station adopts based on this data transfer of adding up in step 100, estimates the channel quality of multipling channel, determines the MCS distributed according to channel quality.
Particularly, base station calculates each code word in the slip statistics interface in current statistic moment for up direction, the number sum of the message that the number of the NACK message of base station feedback and time-out are not fed back, account for the ratio of total statistics that total slip statistic window shows in this preset time period, the first ratio can be designated as, by this first ratio respectively with preset the first ratio thresholding (such as, can 5% be set to), the the second ratio thresholding preset (such as, can 10% be set to) compare, according to comparative result, determine the MCS of the code word that this data transfer adopts.Wherein, the first ratio thresholding preset is less than the second default ratio thresholding.
Particularly, if the code word that base station adopts in this data transfer is not unique, then the calculating of ratio is carried out in base station for the data in the slip statistic window of each code word maintenance in up direction, obtain the first ratio that each code word is corresponding respectively, the first ratio calculated for each code word is compared with the first ratio thresholding preset, the second default ratio thresholding respectively, according to comparative result, determine the MCS of each code word that this data transfer adopts.
If this first ratio is less than or equal to the first default ratio thresholding, then the maximum MCS in the span of the MCS in the code word that adopts in this data transfer for up multipling channel of the base station MCS that distributes this data transfer correspondence code word for up multipling channel.
Why selecting like this, is because when the first ratio is less than or equal to the first default ratio thresholding, illustrates that the code word channel quality now adopted is better, select MCS maximum in MCS span, can improve the throughput of system.
If this first ratio is more than or equal to the second default ratio thresholding, then the minimum MCS in the MCS span in the code word that adopts in this data transfer for up multipling channel of the base station MCS that distributes this data transfer correspondence code word for multipling channel.
Why select like this, be because when the first ratio is more than or equal to the second default ratio thresholding, illustrate that the code word channel quality now adopted is poor, select MCS minimum in MCS span, data demodulates success rate can be improved.
If this first ratio is greater than the first default ratio thresholding, and be less than the second default ratio thresholding, then calculate the channel quality equivalence value of the RB of all dispatching distributions of up this data transfer of multipling channel, obtain the MCS that this channel quality equivalence value is corresponding, base station is the MCS that multipling channel distributes this data transfer correspondence code word is the MCS that this channel quality equivalence value is corresponding.
Wherein, for up multipling channel, the channel quality equivalence value of the RB of all dispatching distributions of this this data transfer, the equivalent SINR value of the SRS of the frequency range at the RB place distributed for this data transmission scheduling, this equivalent SINR value, the SINR value of the SRS of the frequency range at the RB place can distributed according to this data transmission scheduling carries out curve fitting and obtains.
Wherein, if when MCS corresponding to this channel quality equivalence value is greater than the maximum MCS in MCS span, the base station maximum MCS that to be MCS that multipling channel distributes this data transfer correspondence code word be in MCS span; If when the MCS that this channel quality equivalence value is corresponding is less than the minimum MCS in MCS span, the base station minimum MCS that to be MCS that multipling channel distributes this data transfer correspondence code word be in MCS span.
Base station calculates the slip statistics interface of each code word in the current statistic moment for down direction, the number of the NACK message that calculation base station receives and time-out do not receive the number sum of the message of feedback, account for the ratio of total statistics that total slip statistic window shows in this preset time period, the second ratio can be designated as, by this second ratio respectively with preset the first ratio thresholding (such as, can 5% be set to), the the second ratio thresholding preset (such as, can 10% be set to) compare, according to comparative result, determine the MCS of the code word that this data transfer adopts.Wherein, the first ratio thresholding preset is less than the second default ratio thresholding.
Particularly, if the code word that base station adopts in this data transfer is not unique, then the calculating of ratio is carried out in base station for the data in the slip statistic window of each code word maintenance in down direction, obtain the second ratio that each code word is corresponding respectively, the second ratio calculated for each code word is compared with the first ratio thresholding preset, the second default ratio thresholding respectively, according to comparative result, determine the MCS of each code word that this data transfer adopts.
If this second ratio is less than or equal to the first default ratio thresholding, then the maximum MCS in the span of the MCS in the code word that adopts in this data transfer for descending multipling channel of the base station MCS that distributes this data transfer correspondence code word for descending multipling channel.
Why selecting like this, is because when the second ratio is less than or equal to the first default ratio thresholding, illustrates that the code word channel quality now adopted is better, select MCS maximum in MCS span, can improve the throughput of system.
If this second ratio is more than or equal to the second default ratio thresholding, then the minimum MCS in the MCS span in the code word that adopts in this data transfer for descending multipling channel of the base station MCS that distributes this data transfer correspondence code word for multipling channel.
Why select like this, be because when the second ratio is more than or equal to the second default ratio thresholding, illustrate that the code word channel quality now adopted is poor, select MCS minimum in MCS span, data demodulates success rate can be improved.
If this second ratio is greater than the first default ratio thresholding, and be less than the second default ratio thresholding, then calculate the channel quality equivalence value of the RB of all dispatching distributions of descending this data transfer of multipling channel, obtain the MCS that this channel quality equivalence value is corresponding, base station is the MCS that multipling channel distributes this data transfer correspondence code word is the MCS that this channel quality equivalence value is corresponding.
Wherein, for descending multipling channel, the channel quality equivalence value of the RB of all dispatching distributions of this this data transfer, the equivalent CQI of the CQI of the subband at the RB place distributed for this data transmission scheduling, the computational methods of equivalent CQI are:
First, the CQI of the subband at the RB place that this data transmission scheduling distributes is obtained;
Then, efficiency corresponding to each subband CQI is obtained by the CQI of protocol definition and the corresponding relation of efficiency thereof;
Then, calculate efficient mean value, obtain average efficiency, find the CQI value closest to this average efficiency by the CQI of protocol definition and the corresponding relation of efficiency thereof, be equivalent CQI.
So far, base station is that the MCS flow process that multipling channel distributes this data transfer code word is introduced complete.
Based on above-described embodiment, consult shown in Fig. 2, the embodiment of the present invention have also been devised a kind of distributor of modulating-coding strategy, comprises monitoring unit 20, assessment unit 21 and allocation units 22, wherein:
Monitoring unit 20, monitor in real time for the data transmission feedback state corresponding to each code word used on multipling channel, and the feedback states of each code word in preset time period is added up, wherein, feedback states at least comprises: send ack/nack (ACK/NACK) message that receives terminal feedback after data to terminal or exceed setting-up time and receive feedback information not yet, and/or, receive terminal send data after to terminal feedback ACK/NACK message or exceed setting-up time not yet to terminal feedback information;
Assessment unit 21, uses channel quality during each code word to assess to multipling channel for the statistics fed back according to monitoring unit 20 respectively, and according to the code word that assessment result selects this data transfer to adopt;
Allocation units 22, the channel quality of the RB that the code word adopted for this data transfer selected by assessment unit 21 is distributed, determine the span of the MCS in the code word that multipling channel adopts in this data transfer, in conjunction with the feedback information of code word in preset time period that this data transfer adopts, for multipling channel distributes the MCS of the code word that this data transfer adopts in the MCS span in the code word that this data transfer adopts.
Like this, when partial codeword channel quality is poor, a measured code word of selective channel matter is transmitted, and ensures data demodulates success rate, when whole code word channel quality is better, adopts all code words of multipling channel to carry out transfer of data, improves the throughput of user.Further, MCS span is determined according to the channel quality of the RB that the code word of transmission data is distributed in base station, is the MCS that the code assignment of multipling channel transmission data is suitable, can improves the probability of data Successful transmissions in MCS span.
Preferably, to monitor in real time in the data transmission feedback state corresponding to each code word used on multipling channel, and when the feedback states of each code word in preset time period is added up, monitoring unit 20 specifically for:
For each code word that each code word that up multipling channel uses and descending multipling channel use safeguards a statistics interface of sliding respectively, statistics of sliding interface is for showing feedback states corresponding to corresponding codewords and statistics moment corresponding to feedback states;
When difference between the statistics moment and current time of a feedback states shown in sliding statistics interface is greater than preset time period, the feedback states recorded in this statistics moment is deleted in slip statistics interface.
Preferably, use channel quality during each code word to assess to multipling channel respectively in the statistics fed back according to monitoring unit 20, and during the code word selecting this data transfer to adopt according to assessment result, assessment unit 21 specifically for:
If this data transfer is transmitting uplink data, in the slip of each code word that up multipling channel uses statistics interface continuously display NACK message or/and exceed setting-up time and calculate in real time to the number of times of terminal feedback information not yet;
When in the slip statistics interface judging any one code word that up multipling channel uses continuously display NACK message or/and exceed setting-up time be greater than preset times thresholding to the number of times of terminal feedback information not yet time, do not adopt corresponding code word to carry out the transmission of this secondary data;
When in the slip statistics interface judging each code word that up multipling channel uses continuously display NACK message or/and exceed setting-up time be all greater than preset times thresholding to the number of times of terminal feedback information not yet time, adopt any one code word to carry out the transmission of this secondary data;
When in the slip statistics interface judging each code word that up multipling channel uses continuously display NACK message or/and exceed setting-up time be all not more than preset times thresholding to the number of times of terminal feedback information not yet time, adopt all code words to carry out the transmission of this secondary data;
And,
If this data transfer is downlink data transmission, in the slip of each code word that descending multipling channel uses statistics interface continuously display NACK message or/and exceed the number of times that setting-up time do not receive feedback information yet and calculate in real time;
When in the slip statistics interface judging any one code word that descending multipling channel uses continuously display NACK message or/and exceed number of times that setting-up time do not receive feedback information be yet greater than preset times thresholding time, do not adopt corresponding code word to carry out the transmission of this secondary data;
When in the slip statistics interface judging each code word that descending multipling channel uses continuously display NACK message or/and exceed number of times that setting-up time do not receive feedback information yet be all greater than preset times thresholding time, adopt any one code word to carry out the transmission of this secondary data;
When in the slip statistics interface judging each code word that descending multipling channel uses continuously display NACK message or/and exceed number of times that setting-up time do not receive feedback information yet be all not more than preset times thresholding time, adopt all code words to carry out the transmission of this secondary data.
Preferably, at the feedback information of the code word adopted in conjunction with this data transfer in preset time period, in MCS span in the code word that this data transfer adopts for multipling channel distribute the MCS of the code word that this data transfer adopts time, allocation units 22 specifically for:
If this data transfer is transmitting uplink data, in the slip statistics interface then calculating the code word that this data transfer adopts, NACK message number and time-out do not account for the first ratio of total feedback states number yet to the number sum of terminal feedback information, if this data transfer is downlink data transmission, then the number sum that in the slip statistics interface calculating the code word that this data transfer adopts, NACK message number and time-out do not receive feedback information yet accounts for the second ratio of total feedback states number;
First ratio or the second ratio are compared with the first ratio thresholding preset and the second default ratio thresholding, according to comparative result, for multipling channel distributes the MCS of the code word that this data transfer adopts in MCS span in the code word that this data transfer adopts, wherein, the first ratio thresholding is less than the second ratio thresholding.
Preferably, first ratio or the second ratio are being compared with the first ratio thresholding preset and the second default ratio thresholding, according to comparative result, in MCS span in the code word that this data transfer adopts for multipling channel distribute the MCS of the code word that this data transfer adopts time, allocation units 22 specifically for:
If the first ratio or the second ratio are less than or equal to the first ratio thresholding, then MCS maximum in the MCS span in the code word that adopts for this data transfer of the base station MCS that distributes the code word that this data transfer adopts for multipling channel;
Like this, the throughput of system can be improved.
If the first ratio or the second ratio are more than or equal to the second ratio thresholding, then MCS minimum in the MCS span in the code word that adopts for this data transfer of the base station MCS that distributes the code word that this data transfer adopts for multipling channel;
Like this, data demodulates success rate can be improved.
If the first ratio or the second ratio are greater than the first ratio thresholding, and be less than the second ratio thresholding, then base station calculates the channel quality equivalence value of the RB that code word that this data transfer adopts is distributed, and obtain MCS corresponding to channel quality equivalence value, and the MCS distributing the code word that this data transfer adopts for multipling channel is the MCS that channel quality equivalence value is corresponding.
Preferably, be greater than the first ratio thresholding in the first ratio or the second ratio, and when being less than the second ratio thresholding, allocation units 22 are further used for:
If the MCS that channel quality equivalence value is corresponding is greater than the maximum MCS in the MCS span in code word that this data transfer adopts, then the maximum MCS in the MCS span in the code word that the MCS distributing the code word that this data transfer adopts for multipling channel adopts for this data transfer;
If the MCS that channel quality equivalence value is corresponding is less than the minimum MCS in the MCS span in code word that this data transfer adopts, then the minimum MCS in the MCS span in the code word that the MCS distributing the code word that this data transfer adopts for multipling channel adopts for this data transfer.
In sum, in the embodiment of the present invention, the base station data transmission feedback state corresponding to each code word used on multipling channel is monitored in real time, and the feedback states of each code word in preset time period is added up, wherein, this feedback states at least comprises: send the ACK/NACK message that receives terminal feedback after data to terminal and/or exceed setting-up time and receive feedback information not yet, or, receive terminal send data after to terminal feedback ACK/NACK message and/or exceed setting-up time not yet to terminal feedback information, channel quality during each code word is used to assess to multipling channel respectively according to statistics, and according to the code word that assessment result selects this data transfer to adopt, then, the channel quality of the RB that the code word adopted according to this data transfer is distributed, determine the span of the MCS in the code word that multipling channel adopts in this data transfer, in conjunction with the feedback information of code word in preset time period that this data transfer adopts, for multipling channel distributes the MCS of the code word that this data transfer adopts in MCS span in the code word that this data transfer adopts.Like this, when partial codeword channel quality is poor, a measured code word of selective channel matter is transmitted, and ensures data demodulates success rate, when whole code word channel quality is better, adopts all code words of multipling channel to carry out transfer of data, improves the throughput of user.Further, MCS span is determined according to the channel quality of the code word of transmission data in base station, is the MCS that the code assignment of multipling channel transmission data is suitable, can improves the probability of data Successful transmissions in MCS span.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.Obviously, those skilled in the art can carry out various change and modification to the embodiment of the present invention and not depart from the spirit and scope of the embodiment of the present invention.Like this, if these amendments of the embodiment of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims (12)

1. a distribution method for modulating-coding strategy, is characterized in that, comprising:
The base station data transmission feedback state corresponding to each code word used on multipling channel is monitored in real time, and the feedback states of each code word in preset time period is added up, wherein, described feedback states at least comprises: send the ack/nack ACK/NACK message that receives terminal feedback after data to terminal or exceed setting-up time and receive feedback information not yet, and/or, receive terminal send data after to terminal feedback ACK/NACK message or exceed setting-up time not yet to terminal feedback information;
Base station uses channel quality during each code word to assess to multipling channel according to statistics respectively, and according to the code word that assessment result selects this data transfer to adopt;
The channel quality of the Resource Block RB that the code word that base station adopts according to described data transfer is distributed, determine the modulating-coding strategy MCS span in the code word that multipling channel adopts described data transfer, in conjunction with the feedback information of code word in preset time period that described data transfer adopts, for multipling channel distributes the MCS of the code word that this data transfer adopts in the MCS span in the code word that described data transfer adopts.
2. the method for claim 1, it is characterized in that, the base station data transmission feedback information corresponding to each code word used on multipling channel is monitored in real time, and is added up by the feedback information of each code word in preset time period, specifically comprises:
Base station is that each code word that each code word and descending multipling channel that up multipling channel uses use safeguards a statistics interface of sliding respectively, and described slip statistics interface is for showing feedback states corresponding to corresponding codewords and statistics moment corresponding to described feedback states;
When difference between the statistics moment and current time of a feedback states shown in sliding statistics interface is greater than described preset time period, the feedback states of described statistics moment record is deleted in described slip statistics interface.
3. the method for claim 1, is characterized in that, base station uses channel quality during each code word to assess to multipling channel according to statistics respectively, and according to the code word that assessment result selects this data transfer to adopt, specifically comprises:
If this data transfer is transmitting uplink data, base station in the slip of each code word that up multipling channel uses statistics interface continuously display NACK message or/and exceed setting-up time and calculate in real time to the number of times of terminal feedback information not yet;
When in the slip statistics interface that base station judges any one code word continuously display NACK message or/and exceed setting-up time be greater than preset times thresholding to the number of times of terminal feedback information not yet time, do not adopt corresponding code word to carry out the transmission of this secondary data;
When in the slip statistics interface that base station judges each code word continuously display NACK message or/and exceed setting-up time be all greater than preset times thresholding to the number of times of terminal feedback information not yet time, adopt any one code word to carry out the transmission of this secondary data;
When in the slip statistics interface that base station judges each code word continuously display NACK message or/and exceed setting-up time be all not more than preset times thresholding to the number of times of terminal feedback information not yet time, adopt all code words to carry out the transmission of this secondary data;
And,
If this data transfer is downlink data transmission, base station in the slip of each code word that descending multipling channel uses statistics interface continuously display NACK message or/and exceed the number of times that setting-up time do not receive feedback information yet and calculate in real time;
When in the slip statistics interface that base station judges any one code word continuously display NACK message or/and exceed number of times that setting-up time do not receive feedback information be yet greater than preset times thresholding time, do not adopt corresponding code word to carry out the transmission of this secondary data;
When in the slip statistics interface that base station judges each code word continuously display NACK message or/and exceed number of times that setting-up time do not receive feedback information yet be all greater than preset times thresholding time, adopt any one code word to carry out the transmission of this secondary data;
When in the slip statistics interface that base station judges each code word continuously display NACK message or/and exceed number of times that setting-up time do not receive feedback information yet be all not more than preset times thresholding time, adopt all code words to carry out the transmission of this secondary data.
4. the method as described in any one of claim 1-3, it is characterized in that, the feedback information of code word in preset time period that base station adopts in conjunction with described data transfer, for multipling channel distributes the MCS of the code word that this data transfer adopts in the MCS span in the code word that described data transfer adopts, specifically comprise:
If this data transfer is transmitting uplink data, in the slip statistics interface that base station calculates the code word that this data transfer adopts, NACK message number and time-out do not account for the first ratio of total feedback states number yet to the number sum of terminal feedback information, described first ratio and the first ratio thresholding preset and the second default ratio thresholding are compared, according to comparative result, for multipling channel distributes the MCS of the code word that this data transfer adopts in the MCS span in the code word that described data transfer adopts, wherein, described first ratio thresholding is less than described second ratio thresholding,
If this data transfer is downlink data transmission, the number sum that in the slip statistics interface that base station calculates the code word that this data transfer adopts, NACK message number and time-out do not receive feedback information yet accounts for the second ratio of total feedback states number, described second ratio and the first ratio thresholding preset and the second default ratio thresholding are compared, according to comparative result, for multipling channel distributes the MCS of the code word that this data transfer adopts in the MCS span in the code word that described data transfer adopts;
Wherein, described first ratio thresholding is less than described second ratio thresholding.
5. method as claimed in claim 4, it is characterized in that, described first ratio or described second ratio are compared with the first ratio thresholding preset and the second default ratio thresholding, according to comparative result, for multipling channel distributes the MCS of the code word that this data transfer adopts in the MCS span in the code word that described data transfer adopts, specifically comprise:
If described first ratio or described second ratio are less than or equal to described first ratio thresholding, then MCS maximum in the MCS span in the code word that adopts for described data transfer of the base station MCS that distributes the code word that this data transfer adopts for multipling channel;
If described first ratio or described second ratio are more than or equal to described second ratio thresholding, then MCS minimum in the MCS span in the code word that adopts for described data transfer of the base station MCS that distributes the code word that this data transfer adopts for multipling channel;
If described first ratio or described second ratio are greater than described first ratio thresholding, and be less than described second ratio thresholding, then base station calculates the channel quality equivalence value of the RB that code word that described data transfer adopt is distributed, and obtain MCS corresponding to described channel quality equivalence value, and the MCS distributing the code word that this data transfer adopts for multipling channel is the MCS that described channel quality equivalence value is corresponding.
6. method as claimed in claim 5, is characterized in that, be greater than described first ratio thresholding, and when being less than described second ratio thresholding, comprise further in described first ratio or described second ratio:
If the MCS that described channel quality equivalence value is corresponding is greater than the maximum MCS in the MCS span in code word that described data transfer adopt, then the maximum MCS in the MCS span in the code word that the MCS distributing the code word that this data transfer adopts for multipling channel adopts for described data transfer;
If the MCS that described channel quality equivalence value is corresponding is less than the minimum MCS in the MCS span in code word that described data transfer adopt, then the minimum MCS in the MCS span in the code word that the MCS distributing the code word that this data transfer adopts for multipling channel adopts for described data transfer.
7. a distributor for modulating-coding strategy, is characterized in that, comprising:
Monitoring unit, monitor in real time for the data transmission feedback state corresponding to each code word used on multipling channel, and the feedback states of each code word in preset time period is added up, wherein, described feedback states at least comprises: send the ack/nack ACK/NACK message that receives terminal feedback after data to terminal or exceed setting-up time and receive feedback information not yet, and/or, receive terminal send data after to terminal feedback ACK/NACK message or exceed setting-up time not yet to terminal feedback information;
Assessment unit, uses channel quality during each code word to assess to multipling channel for the statistics fed back according to described monitoring unit respectively, and according to the code word that assessment result selects this data transfer to adopt;
Allocation units, the channel quality of the RB that the code word adopted for this data transfer selected by described assessment unit is distributed, determine the span of the MCS in the code word that multipling channel adopts described data transfer, in conjunction with the feedback information of code word in preset time period that described data transfer adopts, for multipling channel distributes the MCS of the code word that this data transfer adopts in the MCS span in the code word that described data transfer adopts.
8. device as claimed in claim 7, it is characterized in that, to monitor in real time in the data transmission feedback state corresponding to each code word used on multipling channel, and when the feedback states of each code word in preset time period is added up, described monitoring unit specifically for:
For each code word that each code word that up multipling channel uses and descending multipling channel use safeguards a statistics interface of sliding respectively, described slip statistics interface is for showing feedback states corresponding to corresponding codewords and statistics moment corresponding to described feedback states;
When difference between the statistics moment and current time of a feedback states shown in sliding statistics interface is greater than described preset time period, the feedback states of described statistics moment record is deleted in described slip statistics interface.
9. device as claimed in claim 7, it is characterized in that, channel quality during each code word is used to assess to multipling channel respectively in the statistics fed back according to described monitoring unit, and during the code word selecting this data transfer to adopt according to assessment result, described assessment unit specifically for:
If this data transfer is transmitting uplink data, in the slip of each code word that up multipling channel uses statistics interface continuously display NACK message or/and exceed setting-up time and calculate in real time to the number of times of terminal feedback information not yet;
When in the slip statistics interface judging any one code word continuously display NACK message or/and exceed setting-up time be greater than preset times thresholding to the number of times of terminal feedback information not yet time, do not adopt corresponding code word to carry out the transmission of this secondary data;
When in the slip statistics interface judging each code word continuously display NACK message or/and exceed setting-up time be all greater than preset times thresholding to the number of times of terminal feedback information not yet time, adopt any one code word to carry out the transmission of this secondary data;
When in the slip statistics interface judging each code word continuously display NACK message or/and exceed setting-up time be all not more than preset times thresholding to the number of times of terminal feedback information not yet time, adopt all code words to carry out the transmission of this secondary data;
And,
If this data transfer is downlink data transmission, in the slip of each code word that descending multipling channel uses statistics interface continuously display NACK message or/and exceed the number of times that setting-up time do not receive feedback information yet and calculate in real time;
When in the slip statistics interface judging any one code word continuously display NACK message or/and exceed number of times that setting-up time do not receive feedback information be yet greater than preset times thresholding time, do not adopt corresponding code word to carry out the transmission of this secondary data;
When in the slip statistics interface judging each code word continuously display NACK message or/and exceed number of times that setting-up time do not receive feedback information yet be all greater than preset times thresholding time, adopt any one code word to carry out the transmission of this secondary data;
When in the slip statistics interface judging each code word continuously display NACK message or/and exceed number of times that setting-up time do not receive feedback information yet be all not more than preset times thresholding time, adopt all code words to carry out the transmission of this secondary data.
10. the device as described in any one of claim 7-9, it is characterized in that, at the feedback information of the code word adopted in conjunction with described data transfer in preset time period, in MCS span in the code word that described data transfer adopts for multipling channel distribute the MCS of the code word that this data transfer adopts time, described allocation units specifically for:
If this data transfer is transmitting uplink data, in the slip statistics interface then calculating the code word that this data transfer adopts, NACK message number and time-out do not account for the first ratio of total feedback states number yet to the number sum of terminal feedback information, described first ratio and the first ratio thresholding preset and the second default ratio thresholding are compared, according to comparative result, for multipling channel distributes the MCS of the code word that this data transfer adopts in the MCS span in the code word that described data transfer adopts;
If this data transfer is downlink data transmission, the number sum that in the slip statistics interface then calculating the code word that this data transfer adopts, NACK message number and time-out do not receive feedback information yet accounts for the second ratio of total feedback states number, described second ratio and the first ratio thresholding preset and the second default ratio thresholding are compared, according to comparative result, for multipling channel distributes the MCS of the code word that this data transfer adopts in the MCS span in the code word that described data transfer adopts;
Wherein, described first ratio thresholding is less than described second ratio thresholding.
11. devices as claimed in claim 10, it is characterized in that, described first ratio or described second ratio are being compared with the first ratio thresholding preset and the second default ratio thresholding, according to comparative result, in MCS span in the code word that described data transfer adopts for multipling channel distribute the MCS of the code word that this data transfer adopts time, described allocation units specifically for:
If described first ratio or described second ratio are less than or equal to described first ratio thresholding, then MCS maximum in the MCS span in the code word that adopts for described data transfer of the base station MCS that distributes the code word that this data transfer adopts for multipling channel;
If described first ratio or described second ratio are more than or equal to described second ratio thresholding, then MCS minimum in the MCS span in the code word that adopts for described data transfer of the base station MCS that distributes the code word that this data transfer adopts for multipling channel;
If described first ratio or described second ratio are greater than described first ratio thresholding, and be less than described second ratio thresholding, then base station calculates the channel quality equivalence value of the RB that code word that described data transfer adopt is distributed, and obtain MCS corresponding to described channel quality equivalence value, and the MCS distributing the code word that this data transfer adopts for multipling channel is the MCS that described channel quality equivalence value is corresponding.
12. devices as claimed in claim 11, is characterized in that, be greater than described first ratio thresholding, and when being less than described second ratio thresholding, described allocation units are further used in described first ratio or described second ratio:
If the MCS that described channel quality equivalence value is corresponding is greater than the maximum MCS in the MCS span in code word that described data transfer adopt, then the maximum MCS in the MCS span in the code word that the MCS distributing the code word that this data transfer adopts for multipling channel adopts for described data transfer;
If the MCS that described channel quality equivalence value is corresponding is less than the minimum MCS in the MCS span in code word that described data transfer adopt, then the minimum MCS in the MCS span in the code word that the MCS distributing the code word that this data transfer adopts for multipling channel adopts for described data transfer.
CN201510115183.6A 2015-03-16 2015-03-16 A kind of distribution method and device of modulating-coding strategy Active CN104717038B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510115183.6A CN104717038B (en) 2015-03-16 2015-03-16 A kind of distribution method and device of modulating-coding strategy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510115183.6A CN104717038B (en) 2015-03-16 2015-03-16 A kind of distribution method and device of modulating-coding strategy

Publications (2)

Publication Number Publication Date
CN104717038A true CN104717038A (en) 2015-06-17
CN104717038B CN104717038B (en) 2018-11-06

Family

ID=53416042

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510115183.6A Active CN104717038B (en) 2015-03-16 2015-03-16 A kind of distribution method and device of modulating-coding strategy

Country Status (1)

Country Link
CN (1) CN104717038B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017088147A1 (en) * 2015-11-26 2017-06-01 华为技术有限公司 Method and base station for realizing adaptive modulation and coding
CN108696335A (en) * 2017-04-10 2018-10-23 华为技术有限公司 Transmission method, transmitting terminal and receiving terminal
CN109150372A (en) * 2017-06-15 2019-01-04 中国信息通信研究院 It is a kind of to modulate and coding strategy method of adjustment and device
CN109478963A (en) * 2016-11-18 2019-03-15 华为技术有限公司 Data transmission method and device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101635608A (en) * 2009-09-02 2010-01-27 北京邮电大学 Method and device for selecting MCS and wireless communication system
CN101911526A (en) * 2008-02-13 2010-12-08 高通股份有限公司 Systems and methods for distributed beamforming based on carrier-to-caused interference
CN104243091A (en) * 2013-06-20 2014-12-24 华为技术有限公司 Method and device for determining modulation and coding scheme

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101911526A (en) * 2008-02-13 2010-12-08 高通股份有限公司 Systems and methods for distributed beamforming based on carrier-to-caused interference
CN101635608A (en) * 2009-09-02 2010-01-27 北京邮电大学 Method and device for selecting MCS and wireless communication system
CN104243091A (en) * 2013-06-20 2014-12-24 华为技术有限公司 Method and device for determining modulation and coding scheme

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017088147A1 (en) * 2015-11-26 2017-06-01 华为技术有限公司 Method and base station for realizing adaptive modulation and coding
CN109478963A (en) * 2016-11-18 2019-03-15 华为技术有限公司 Data transmission method and device
CN109478963B (en) * 2016-11-18 2021-02-09 华为技术有限公司 Data transmission method and device
US11129193B2 (en) 2016-11-18 2021-09-21 Huawei Technologies Co., Ltd. Data transmission method and apparatus using a clear channel assessment (CCA) detection threshold
CN108696335A (en) * 2017-04-10 2018-10-23 华为技术有限公司 Transmission method, transmitting terminal and receiving terminal
CN108696335B (en) * 2017-04-10 2021-10-15 华为技术有限公司 Transmission method, sending end and receiving end
CN109150372A (en) * 2017-06-15 2019-01-04 中国信息通信研究院 It is a kind of to modulate and coding strategy method of adjustment and device

Also Published As

Publication number Publication date
CN104717038B (en) 2018-11-06

Similar Documents

Publication Publication Date Title
EP2770770B1 (en) Interference measurement signalling notification, interference measurement and feedback method and device thereof
KR101717869B1 (en) Data transmission method, base station, and user equipment
CN102104972B (en) Configuring method and device for UCI (user class identifier) information transmission
EP2816840B1 (en) Adaptive transmission scheme with two modes of operation
CN101919172B (en) Long-time statistical CSI assistant MU-MIMO scheduling method, base station and user device
CN102438318B (en) Method, equipment and system for adjusting feedback cycle of channel quality indicator (CQI)
CN105050189A (en) Wireless resource scheduling method and relevant equipment
CN102474745A (en) Controlling CSI reporting in a lte cellular communication network
CN111769860A (en) CQI information receiving method, transmitting method, receiving device and transmitting device
RU2012134826A (en) METHODS AND DEVICE FOR COMPETITION-BASED PROVISION OF WIRELESS COMMUNICATION NETWORKS
CN102638337A (en) CSI (Channel State Information) reporting control method as well as CSI reporting method and device
CN103152754A (en) Link adaptation method and device in long term evolution (LTE) system
CN103369674B (en) The distribution method of interface-free resources and equipment
CN104717038A (en) Method and device for distributing modulation code strategies
US11101960B2 (en) Method for transmitting uplink control information and apparatus
CN104579603A (en) Downlink scheduling method and device based on HARQ (hybrid automatic repeat request)
CN107124769B (en) A kind of resource allocation method and base station
CN101919192A (en) Reporting channel quality information
CN106507489B (en) resource allocation method and access device
CN107302414B (en) Transmission mode self-adaptive switching method and device
CN105472754A (en) Resource allocation method and device
CN102752867A (en) Method for achieving link adaptation, terminal device and network device
EP3579610A1 (en) Wireless communication system, base station device, terminal device and wireless communication method
CN109429259A (en) A kind of descending channel quality reporting method and user terminal
CN102064867A (en) Method and device for switching multi-antenna transmission modes

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20180224

Address after: 510663 Shenzhou Road, Guangzhou Science City, Guangzhou economic and Technological Development Zone, Guangdong, 10

Applicant after: Comba Telecom System (China) Co., Ltd.

Applicant after: Comba Telecom Systems (Guangzhou) Co., Ltd.

Applicant after: Jingxin Communication Technology (Guangzhou) Co., Ltd.

Applicant after: TIANJIN COMBA TELECOM SYSTEMS CO., LTD.

Address before: 510663 Guangdong city of Guangzhou Province Economic and Technological Development Zone Jinbi Road No. 6

Applicant before: Jingxin Communication Technology (Guangzhou) Co., Ltd.

TA01 Transfer of patent application right
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20200109

Address after: 510730 Economic and Technological Development Zone, Huangpu District, Guangzhou City, Guangdong Province, No. 10 Shenzhou Road, Guangzhou Science City

Patentee after: Jingxin Communication System (China) Co., Ltd.

Address before: 510663 Shenzhou Road, Guangzhou Science City, Guangzhou economic and Technological Development Zone, Guangdong, 10

Co-patentee before: Jingxin Communication System (Guangzhou) Co., Ltd.

Patentee before: Jingxin Communication System (China) Co., Ltd.

Co-patentee before: Jingxin Communication Technology (Guangzhou) Co., Ltd.

Co-patentee before: TIANJIN COMBA TELECOM SYSTEMS CO., LTD.

TR01 Transfer of patent right
CP01 Change in the name or title of a patent holder

Address after: 510730 No.10, Shenzhou Road, Guangzhou Science City, economic and Technological Development Zone, Huangpu District, Guangzhou City, Guangdong Province

Patentee after: Jingxin Network System Co.,Ltd.

Address before: 510730 No.10, Shenzhou Road, Guangzhou Science City, economic and Technological Development Zone, Huangpu District, Guangzhou City, Guangdong Province

Patentee before: Comba Telecom System (China) Ltd.

CP01 Change in the name or title of a patent holder