CN106888068B - A kind of channel decoding method and device based on periodical CQI - Google Patents
A kind of channel decoding method and device based on periodical CQI Download PDFInfo
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- CN106888068B CN106888068B CN201510934962.9A CN201510934962A CN106888068B CN 106888068 B CN106888068 B CN 106888068B CN 201510934962 A CN201510934962 A CN 201510934962A CN 106888068 B CN106888068 B CN 106888068B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0047—Decoding adapted to other signal detection operation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
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Abstract
The invention discloses a kind of method and device of channel decoding based on periodical CQI, this method is that base station receives the periodical CQI configuration information of the high-rise user terminal issued；Wherein, periodical CQI configuration information includes at least the data length of periodicity CQI；When base station determines that the data length of periodicity CQI is not 0, according to periodical CQI configuration information, first channel decoding is carried out to the data that user terminal is sent, and sets 0 for the data length of periodical CQI, then second channel decoding is carried out to the data that user terminal is sent；Base station judges whether the first channel decoding result and second channel decoding result are correct, and correct channel decoding result is reported.In this way, carrying out channel decoding twice for the user terminal that periodical CQI data length is not 0, and correct channel decoding result is only taken to be reported, solves the problems, such as that channel decoding may be wrong, reduce uplink BLER, increase the reliability of system.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of methods and dress of the channel decoding based on periodical CQI
It sets.
Background technique
In time division duplex-long term evolution (Time Division Duplex-Long Term Evolution, TDD-
LTE) in system, in discontinuous reception (Discontinuous Reception, DRX) after the activation phase, terminal (UE) can be in physics
Sending cycle channel quality indicates on Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH)
(Channel Quality Indicator, CQI) information, to indicate the transmission quality of channel, but some UE may not have
At this moment sending cycle CQI if base station (ENB) still believes that UE has sent periodical CQI, will lead to channel decoding mistake
Accidentally, this is because, UE sent on PUSCH for carry uplink service service data information and control information be multiplexing,
Weave in, in this way when carrying out channel decoding, needs to know the length of control information and whether there is or not control information here
It may include: periodical CQI, correct response instruction (ACKnowledge, ACK) and order instruction (Rank Indication, RI),
For periodical CQI, if the length of the periodical CQI in the control information that base station is known is wrong, progress channel decoding
When, inherently malfunction.
In the prior art, ENB receives the high-rise subframe scheduling information issued, if periodicity CQI in subframe scheduling information
The case where data length is 0, then ENB is according to no periodicity CQI carries out channel decoding, including, business datum and the first control
Information deinterleaves, business datum and the first control information demultiplexing, traffic data channel decode, wherein in the first control information
Not comprising periodical CQI；If periodicity CQI data length is not 0, ENB according to there is periodical CQI in subframe scheduling information
The case where, channel decoding is carried out, including, business datum and the second control information deinterleaving, business datum and the second control information
Demultiplexing, traffic data channel decoding and periodicity CQI channel decoding, wherein included at least periodically in the second control information
CQI, still, in the subframe scheduling information that high level issues, the instruction for periodical CQI data length may be mistake, such as
At this moment there is no sending cycle CQI by UE for fruit, will lead to channel decoding mistake.
It can be seen that in the prior art, ENB directly carries out corresponding channel decoding according to high level instruction, still, when UE simultaneously
There is no a sending cycle CQI, and when high-rise instruction has periodical CQI, ENB carries out the result mistake of channel decoding, just
The reliability that will lead to system reduces, and makes guild there are Block Error Rate (Block Error Ratio, BLER), upper scanning frequencies
Rate reduces.
Summary of the invention
The embodiment of the present invention provides a kind of method and device of channel decoding based on periodical CQI, to solve existing skill
The problem of channel decoding mistake is likely to occur in art.
Specific technical solution provided in an embodiment of the present invention is as follows:
A method of the channel decoding based on channel quality instruction periodicity CQI, comprising:
Base station receives the periodical CQI configuration information of the high-rise user terminal issued；Wherein, above-mentioned periodicity CQI configuration
The data length of periodicity CQI is included at least in information；
When base station determines that the data length of above-mentioned periodicity CQI is not 0, according to above-mentioned periodicity CQI configuration information, to phase
The data for answering the above-mentioned user terminal received on channel to send carry out the first channel decoding, and by above-mentioned periodicity CQI's
Data length is set as 0, then carries out second channel to the data that the above-mentioned user terminal received in above-mentioned respective channel is sent
Decoding；
Base station judges whether the first channel decoding result obtained and second channel decoding result are correct, by correct channel
Decoding result is reported.
In the embodiment of the present invention, base station receives the periodical CQI configuration information of the high-rise user terminal issued；Wherein, on
State the data length that periodicity CQI is included at least in periodical CQI configuration information；Base station determines the data of above-mentioned periodicity CQI
When length is not 0, according to above-mentioned periodicity CQI configuration information, the above-mentioned user terminal received in respective channel is sent
Data carry out the first channel decoding, and set 0 for the data length of above-mentioned periodicity CQI, then in above-mentioned respective channel
The data that the above-mentioned user terminal received is sent carry out second channel decoding；The first channel decoding result that base station judgement obtains
It is whether correct with second channel decoding result, correct channel decoding result is reported.In this way, base station is for periodicity
CQI data length is not that 0 user terminal has carried out channel decoding twice, and channel decoding result is only taken correctly to carry out
Report solves the problems, such as that channel decoding may be wrong, reduces uplink BLER, increase the reliability of system.
Preferably, further comprising:
Base station is when the data length for determining above-mentioned periodicity CQI is 0, then directly above-mentioned to what is received in respective channel
The data that user terminal is sent carry out channel decoding, and directly report above-mentioned channel decoding result.
Preferably, matching confidence according to above-mentioned periodicity CQI when base station determines that the data length of above-mentioned periodicity CQI is not 0
Breath carries out the first channel decoding to the data that the above-mentioned user terminal received in respective channel is sent, specifically includes:
According to above-mentioned periodicity CQI configuration information, to the business datum and periodicity CQI in the data of user terminal transmission
It is deinterleaved and business datum and periodicity CQI is demultiplexed；
Multiplexed business datum is conciliate to above-mentioned deinterleaving respectively and periodicity CQI carries out channel decoding；
0 is set by the data length of above-mentioned periodicity CQI, then whole to the above-mentioned user received in above-mentioned respective channel
The data that end is sent carry out second channel decoding, specifically include:
0 is set by the data length of above-mentioned periodicity CQI, the above-mentioned user terminal received in respective channel is sent out
The data sent carry out channel decoding directly as business datum.
Preferably, base station judges whether the first channel decoding result obtained and second channel decoding result are correct, it will just
True channel decoding result is reported, and is specifically included:
The value and base station judgement for judging the first circulation redundancy check code CRC of the first channel decoding result obtained obtain
The value of 2nd CRC of the second channel decoding result obtained；
If it is determined that determining that crc value is 0 corresponding channel decoding when above-mentioned first crc value or above-mentioned second crc value are 0
As a result correct, correct channel decoding result is reported.
Preferably, further comprising:
If it is determined that then directly giving up crc value is 1 corresponding letter when above-mentioned first crc value or above-mentioned second crc value are 1
Road decodes result.
A kind of device of the channel decoding based on channel quality instruction periodicity CQI, comprising:
Receiving unit, for receiving the periodical CQI configuration information of the high-rise user terminal issued；Wherein, the above-mentioned period
Property CQI configuration information in include at least periodicity CQI data length；
Decoding unit when for determining that the data length of above-mentioned periodicity CQI is not 0, is configured according to above-mentioned periodicity CQI
Information carries out the first channel decoding to the data that the above-mentioned user terminal that receives in respective channel is sent, and by above-mentioned week
The data length of phase property CQI is set as 0, then carries out to the data that the above-mentioned user terminal received in above-mentioned respective channel is sent
Second channel decoding；
Reporting unit, whether the first channel decoding result and second channel decoding result for judging to obtain are correct, will
Correct channel decoding result is reported.
In the embodiment of the present invention, base station receives the periodical CQI configuration information of the high-rise user terminal issued；Wherein, on
State the data length that periodicity CQI is included at least in periodical CQI configuration information；Base station determines the data of above-mentioned periodicity CQI
When length is not 0, according to above-mentioned periodicity CQI configuration information, the above-mentioned user terminal received in respective channel is sent
Data carry out the first channel decoding, and set 0 for the data length of above-mentioned periodicity CQI, then in above-mentioned respective channel
The data that the above-mentioned user terminal received is sent carry out second channel decoding；The first channel decoding result that base station judgement obtains
It is whether correct with second channel decoding result, correct channel decoding result is reported.In this way, base station is for periodicity
CQI data length is not that 0 user terminal has carried out channel decoding twice, and channel decoding result is only taken correctly to carry out
Report solves the problems, such as that channel decoding may be wrong, reduces uplink BLER, increase the reliability of system.
Preferably, decoding unit, is further used for when the data length for determining above-mentioned periodicity CQI is 0, then it is directly right
The data that the above-mentioned user terminal received in respective channel is sent carry out channel decoding and reporting unit, are further used for
Directly report above-mentioned channel decoding result.
Preferably, when the data length for determining above-mentioned periodicity CQI is not 0, according to above-mentioned periodicity CQI configuration information,
When carrying out the first channel decoding to the data that the above-mentioned user terminal received in respective channel is sent, decoding unit is specifically used
In:
According to above-mentioned periodicity CQI configuration information, to the business datum and periodicity CQI in the data of user terminal transmission
It is deinterleaved and business datum and periodicity CQI is demultiplexed；
Multiplexed business datum is conciliate to above-mentioned deinterleaving respectively and periodicity CQI carries out channel decoding；
0 is set by the data length of above-mentioned periodicity CQI, then whole to the above-mentioned user received in above-mentioned respective channel
When the data that end is sent carry out second channel decoding, decoding unit is specifically used for:
0 is set by the data length of above-mentioned periodicity CQI, the above-mentioned user terminal received in respective channel is sent out
The data sent carry out channel decoding directly as business datum.
Preferably, judge whether the first channel decoding result obtained and second channel decoding result are correct, it will be correct
Channel decoding result give the correct time, and reporting unit is specifically used for:
The value and base station judgement for judging the first circulation redundancy check code CRC of the first channel decoding result obtained obtain
The value of 2nd CRC of the second channel decoding result obtained；
If it is determined that determining that crc value is 0 corresponding channel decoding when above-mentioned first crc value or above-mentioned second crc value are 0
As a result correct, correct channel decoding result is reported.
Preferably, reporting unit is further used for:
If it is determined that then directly giving up crc value is 1 corresponding letter when above-mentioned first crc value or above-mentioned second crc value are 1
Road decodes result.
Detailed description of the invention
Fig. 1 is that the method for the channel decoding based on periodical CQI in the embodiment of the present invention summarizes flow diagram；
Fig. 2 is the method detailed process schematic diagram of the channel decoding based on periodical CQI in the embodiment of the present invention；
Fig. 3 is the apparatus structure schematic diagram of the channel decoding based on periodical CQI in the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, is not whole embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to solve the problems, such as that channel decoding is likely to occur mistake, in the embodiment of the present invention, periodicity CQI data are being determined
When length is not 0, specially treated is carried out, is not respectively the 0 corresponding channel decoding of carry out according to periodical CQI data length, with
And according to corresponding channel decoding is carried out again after periodical CQI data length is changed to 0, channel decoding result is taken correctly to carry out
It reports.
In practice, base station can receive the high-rise subframe scheduling information issued, then according to the subframe scheduling information to user
The data that terminal is sent carry out channel decoding, wherein the period of each user terminal is included at least in above-mentioned subframe scheduling information
Property CQI configuration information, first introduce the data that base station sends user terminals all in subframe scheduling information below and carry out channel
The process of decoding.
Firstly, base station determines periodicity CQI in the periodical CQI configuration information of each user terminal (such as total M)
Data length whether be 0.
Then, the data length for the periodical CQI for determining any one user terminal be 0 when, by it is above-mentioned any one
Two parts of the corresponding subframe scheduling information cache of user terminal, portion are the corresponding original subframe of any one above-mentioned user terminal
Scheduling information, i.e., wherein the data length of periodicity CQI is not 0, another is repaired for any one above-mentioned user terminal is corresponding
Subframe scheduling information after changing sets 0 for the data length of periodicity CQI therein, for example, the data of periodicity CQI
The number for the user terminal that length is 0 is N, is equivalent to a total of M+N user terminal in this way.
Then, base station configures corresponding decoder according to M+N user terminal, i.e., respectively to the above-mentioned M+N received
The data that user terminal is sent carry out channel decoding.
Finally, the channel decoding result of above-mentioned N number of user terminal is taken correctly to be reported, and remaining M-N is used
The channel decoding result of family terminal (user terminal that the data length of i.e. corresponding periodicity CQI is 0) is directly reported.
Only the present invention program is described in detail so that base station carries out channel decoding to a user terminal as an example below,
Certainly, the present invention is not limited to following embodiments.
As shown in fig.1, the detailed process of the method for the channel decoding based on periodical CQI is such as in the embodiment of the present invention
Under:
Step 100: base station receives the periodical CQI configuration information of the high-rise user terminal issued；Wherein, above-mentioned periodicity
The data length of periodicity CQI is included at least in CQI configuration information.
In practice, user terminal is physically gone at discontinuous reception (Discontinuous Reception, DRX)
It may be with periodically in the data sent on shared channel (Physical Uplink Shared Channel, PUSCH)
CQI, it is also possible to which without periodicity CQI, and these data interweave, are multiplexed together, and in this case, base station is to this
When the data that user terminal is sent carry out channel decoding, it is possible that mistake, therefore, the embodiment of the present invention are based on this feelings
Condition and carry out.
Certainly, other control information, such as correct response instruction be may also contain in the data that user terminal is sent
(ACKnowledge, ACK), order instruction (Rank Indication, RI), periodical CQI only control one of information, because
It is only the channel decoding for the data with periodicity CQI for the embodiment of the present invention, information is controlled for others, in this hair
It is handled fully according to existing technology, herein just not without specially treated when carrying out channel decoding in bright embodiment
It is repeated again, therefore, for convenience of introducing, in embodiments of the present invention, it is believed that the control information that user terminal is sent is only week
Phase property CQI.
Step 110: when base station determines that the data length of above-mentioned periodicity CQI is not 0, being configured according to above-mentioned periodicity CQI
Information carries out the first channel decoding to the data that the above-mentioned user terminal that receives in respective channel is sent, and by above-mentioned week
The data length of phase property CQI is set as 0, then carries out to the data that the above-mentioned user terminal received in above-mentioned respective channel is sent
Second channel decoding.
Wherein, the data length of periodical CQI is not 0, illustrates that user terminal has sent periodical CQI, equally, periodically
When the data length of CQI is 0, illustrate that user terminal does not have sending cycle CQI.
In step 110, following two processing is respectively adopted when determining the data length of periodicity CQI is not 0 in base station
Mode:
First way: not modifying the data length of above-mentioned periodicity CQI, directly matches confidence according to above-mentioned periodicity CQI
Breath carries out the first channel decoding to the data that the above-mentioned user terminal received in respective channel is sent, specifically includes:
According to above-mentioned periodicity CQI configuration information, to the business datum and periodicity CQI in the data of user terminal transmission
It is deinterleaved and business datum and periodicity CQI is demultiplexed；
Multiplexed business datum is conciliate to above-mentioned deinterleaving respectively and periodicity CQI carries out channel decoding.
The second way: 0 is set by the data length of above-mentioned periodicity CQI, that is, thinks that user terminal is not sent out
Periodical CQI is sent, then second channel decoding is carried out to the data that the above-mentioned user terminal received in above-mentioned respective channel is sent,
It specifically includes:
0 is set by the data length of above-mentioned periodicity CQI, the above-mentioned user terminal received in respective channel is sent out
The data sent carry out channel decoding directly as business datum.
In practical applications, the switch for being used to whether execute the method for the present invention can be preset in base station, when not
When being DRX situation, the switch is closed, the subframe scheduling information that at this moment base station is issued fully according to high level does normal processing, i.e., not
With the user terminal for again to periodical CQI data length not being 0, channel decoding twice is carried out, in this way, when not needing to periodicity
CQI data length be not 0 user terminal carry out twice channel decoding when, turn off the switch, the reliability of system will not be generated
Any influence is opened the switch, is handled using method of the invention only in DRX, and solution is likely to occur channel and translates
The problem of code mistake.
Step 120: base station judges whether the first channel decoding result obtained and second channel decoding result are correct, will just
True channel decoding result is reported.
When executing step 120, specifically include:
Firstly, the first circulation redundancy check code (Cyclic for the first channel decoding result that base station judgement obtains
Redundancy Check, CRC) value and base station judgement obtain second channel decoding result the 2nd CRC value.
Then, if it is determined that when above-mentioned first crc value or above-mentioned second crc value are 0, determine that crc value is 0 corresponding channel
It is correct to decode result, correct channel decoding result is reported.
Further, if it is determined that when above-mentioned first crc value or above-mentioned second crc value are 1, then directly giving up crc value is 1
Corresponding channel decoding result.
After executing the step 100-120, the case where not being 0 for periodical CQI data length, the channel that base station reports is translated
Code result must correctly, be solved the problems, such as to be likely to occur channel decoding mistake, reduce uplink BLER, increase system
Reliability.
Further, when base station determines that periodicity CQI data length is 0, then directly to being received in respective channel
The data that above-mentioned user terminal is sent carry out channel decoding, and directly report above-mentioned channel decoding result.This is because working as the period
Property CQI data length be 0 when, illustrate that base station thinks that user terminal does not have sending cycle CQI, be at this moment not in user terminal
The case where having sent periodical CQI, therefore, the corresponding subframe tune of user terminal that base station is 0 for periodical CQI data length
Information is spent, does not have to carry out specially treated, that is to say, that does not have to carry out channel decoding twice.
Further description is made to above-described embodiment using a specific application scenarios below.Referring particularly to Fig. 2
Shown, in the embodiment of the present invention, the implementation procedure of the method for the channel decoding based on periodical CQI is specific as follows:
Step 200: receiving the periodical CQI configuration information of the high-rise user terminal issued.
Certainly, high level issues subframe scheduling information to base station, and each user terminal is included at least in the subframe scheduling information
Periodical CQI configuration information, Fig. 2 is the flow chart that base station handles a user terminal.
Step 201: base station side can preset a switch, for whether needing to be implemented specially treated side of the invention
Method, i.e., when above-mentioned periodicity CQI length is not 0, the channel decoding twice of progress judges whether above-mentioned switch is open, if
It is to then follow the steps 203, otherwise, thens follow the steps 202.
Step 202: according to the periodical CQI configuration information of above-mentioned user terminal, normally being handled, i.e., directly using existing
There is technology, according to above-mentioned periodicity CQI configuration information, carries out channel decoding, be not 0 use not for periodical CQI length
Family terminal carries out specially treated.
Step 203: judging in periodicity CQI configuration information periodicity CQI data length whether not for 0, if so, executing
Step 206, otherwise, step 204 is executed.
Step 204: the user terminal for being 0 for periodical CQI data length, it is directly upper to what is received in respective channel
The data for stating user terminal transmission carry out channel decoding.
Step 205: direct reporting channel decodes result.
Step 206: by two parts of the corresponding subframe scheduling information cache of above-mentioned user terminal.
Step 207: it is a without modification, according to the periodical CQI configuration information of above-mentioned user terminal, to what is received
The data that the user terminal is sent carry out the first channel decoding and another by the data length of periodical CQI sets 0,
Second channel decoding is carried out to the data that the user terminal received is sent again.
Step 208: judging whether above-mentioned first channel decoding and second channel decoding result are correct, that is, judge the first channel
Otherwise second crc value of the first crc value and second channel the decoding result of decoding, executes if correctly, thening follow the steps 209
Step 210.
Step 209: taking correct channel decoding result to be reported, i.e., crc value is 0 corresponding channel decoding result.
Step 210: directly giving up the channel decoding of mistake as a result, i.e. crc value is 1 corresponding channel decoding result.
Based on the above embodiment, as shown in fig.3, in the embodiment of the present invention, the dress of the channel decoding based on periodical CQI
It sets, specifically includes:
Receiving unit 30, for receiving the periodical CQI configuration information of the high-rise user terminal issued；Wherein, above-mentioned week
The data length of periodicity CQI is included at least in phase property CQI configuration information；
Decoding unit 31 when for determining that the data length of above-mentioned periodicity CQI is not 0, is matched according to above-mentioned periodicity CQI
Confidence breath carries out the first channel decoding to the data that the above-mentioned user terminal received in respective channel is sent, and will be above-mentioned
The data length of periodical CQI is set as 0, then the data that the above-mentioned user terminal received in above-mentioned respective channel is sent into
The decoding of row second channel；
Reporting unit 32, whether the first channel decoding result and second channel decoding result for judging to obtain are correct,
Correct channel decoding result is reported.
Preferably, decoding unit 31, is further used for when the data length for determining above-mentioned periodicity CQI is 0, then directly
Channel decoding and reporting unit 32 are carried out to the data that the above-mentioned user terminal received in respective channel is sent, further
For directly reporting above-mentioned channel decoding result.
Preferably, when the data length for determining above-mentioned periodicity CQI is not 0, according to above-mentioned periodicity CQI configuration information,
When carrying out the first channel decoding to the data that the above-mentioned user terminal received in respective channel is sent, decoding unit 31 is specifically used
In:
According to above-mentioned periodicity CQI configuration information, to the business datum and periodicity CQI in the data of user terminal transmission
It is deinterleaved and business datum and periodicity CQI is demultiplexed；
Multiplexed business datum is conciliate to above-mentioned deinterleaving respectively and periodicity CQI carries out channel decoding；
0 is set by the data length of above-mentioned periodicity CQI, then whole to the above-mentioned user received in above-mentioned respective channel
When the data that end is sent carry out second channel decoding, decoding unit 31 is specifically used for:
0 is set by the data length of above-mentioned periodicity CQI, the above-mentioned user terminal received in respective channel is sent out
The data sent carry out channel decoding directly as business datum.
Preferably, judge whether the first channel decoding result obtained and second channel decoding result are correct, it will be correct
Channel decoding result give the correct time, and reporting unit 32 is specifically used for:
The value and base station judgement for judging the first circulation redundancy check code CRC of the first channel decoding result obtained obtain
The value of 2nd CRC of the second channel decoding result obtained；
If it is determined that determining that crc value is 0 corresponding channel decoding when above-mentioned first crc value or above-mentioned second crc value are 0
As a result correct, correct channel decoding result is reported.
Preferably, reporting unit 32 is further used for:
If it is determined that then directly giving up crc value is 1 corresponding letter when above-mentioned first crc value or above-mentioned second crc value are 1
Road decodes result.
In conclusion base station receives the periodical CQI of the high-rise user terminal issued with confidence in the embodiment of the present invention
Breath；Wherein, the data length of periodicity CQI is included at least in above-mentioned periodicity CQI configuration information；Base station determines above-mentioned periodicity
It is whole to the above-mentioned user received in respective channel according to above-mentioned periodicity CQI configuration information when the data length of CQI is not 0
The data that end is sent carry out the first channel decoding, and set 0 for the data length of above-mentioned periodicity CQI, then to above-mentioned phase
The data for answering the above-mentioned user terminal received on channel to send carry out second channel decoding；The first channel that base station judgement obtains
It decodes result and whether second channel decoding result is correct, correct channel decoding result is reported.In this way, base station for
Periodical CQI data length is not that 0 user terminal has carried out channel decoding twice, and only take channel decoding result correctly into
Row reports, and solves the problems, such as that channel decoding may be wrong, reduces uplink BLER, increase the reliability of system.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (8)
1. a kind of method of the channel decoding based on periodic channel quality instruction CQI characterized by comprising
Base station receives the periodical CQI configuration information of the high-rise user terminal issued；Wherein, the periodicity CQI configuration information
In include at least periodicity CQI data length；
When base station determines that the data length of the periodicity CQI is not 0, according to the periodicity CQI configuration information, to corresponding letter
The data that the user terminal that receives on road is sent carry out the first channel decoding, and by the data of the periodicity CQI
Length is set as 0, then carries out second channel decoding to the data that the user terminal received in the respective channel is sent；
Base station judges whether the first channel decoding result obtained and second channel decoding result are correct, by correct channel decoding
As a result it is reported；
Base station is when the data length for determining the periodicity CQI is 0, then directly to the user received in respective channel
The data that terminal is sent carry out channel decoding, and directly report the channel decoding result.
2. the method as described in claim 1, which is characterized in that base station determines that the data length of the periodicity CQI is not 0
When, according to the periodicity CQI configuration information, the is carried out to the data that the user terminal received in respective channel is sent
One channel decoding, specifically includes:
According to the periodicity CQI configuration information, the business datum in data sent to user terminal is carried out with periodicity CQI
It deinterleaves and business datum and periodicity CQI is demultiplexed；
Multiplexed business datum is conciliate to the deinterleaving respectively and periodicity CQI carries out channel decoding；
0 is set by the data length of the periodicity CQI, then the user terminal received in the respective channel is sent out
The data sent carry out second channel decoding, specifically include:
0 is set by the data length of the periodicity CQI, the user terminal received in respective channel is sent
Data carry out channel decoding directly as business datum.
3. method according to claim 1 or 2, which is characterized in that the first channel decoding result and that base station judgement obtains
Whether two channel decoding results are correct, and correct channel decoding result is reported, is specifically included:
The value and base station for judging the first circulation redundancy check code CRC of the first channel decoding result obtained judge acquisition
Second channel decodes the value of the 2nd CRC of result；
If it is determined that determining that crc value is 0 corresponding channel decoding result when first crc value or second crc value are 0
Correctly, correct channel decoding result is reported.
4. method as claimed in claim 3, which is characterized in that further comprise:
If it is determined that then directly giving up crc value is that 1 corresponding channel is translated when first crc value or second crc value are 1
Code result.
5. a kind of device of the channel decoding based on channel quality instruction periodicity CQI characterized by comprising
Receiving unit, for receiving the periodical CQI configuration information of the high-rise user terminal issued；Wherein, the periodicity CQI
The data length of periodicity CQI is included at least in configuration information；
Decoding unit when for determining that the data length of the periodicity CQI is not 0, matches confidence according to the periodicity CQI
Breath carries out the first channel decoding to the data that the user terminal that receives in respective channel is sent, and by the period
Property CQI data length be set as 0, then the is carried out to the data that the user terminal received in the respective channel is sent
Two channel decodings；
Reporting unit, whether the first channel decoding result and second channel decoding result for judging to obtain are correct, will be correct
Channel decoding result reported；
Decoding unit is further used for when the data length for determining the periodicity CQI is 0, then directly in respective channel
The data that the user terminal received is sent carry out channel decoding and reporting unit, are further used for directly reporting institute
State channel decoding result.
6. device as claimed in claim 5, which is characterized in that when the data length for determining the periodicity CQI is not 0, root
According to the periodicity CQI configuration information, the first letter is carried out to the data that the user terminal received in respective channel is sent
When road decodes, decoding unit is specifically used for:
According to the periodicity CQI configuration information, the business datum in data sent to user terminal is carried out with periodicity CQI
It deinterleaves and business datum and periodicity CQI is demultiplexed；
Multiplexed business datum is conciliate to the deinterleaving respectively and periodicity CQI carries out channel decoding；
0 is set by the data length of the periodicity CQI, then the user terminal received in the respective channel is sent out
When the data sent carry out second channel decoding, decoding unit is specifically used for:
0 is set by the data length of the periodicity CQI, the user terminal received in respective channel is sent
Data carry out channel decoding directly as business datum.
7. such as device described in claim 5 or 6, which is characterized in that judge the first channel decoding result obtained and the second letter
Whether decoding result in road is correct, correct channel decoding result give the correct time, reporting unit is specifically used for:
The value and base station for judging the first circulation redundancy check code CRC of the first channel decoding result obtained judge acquisition
Second channel decodes the value of the 2nd CRC of result；
If it is determined that determining that crc value is 0 corresponding channel decoding result when first crc value or second crc value are 0
Correctly, correct channel decoding result is reported.
8. device as claimed in claim 7, which is characterized in that reporting unit is further used for:
If it is determined that then directly giving up crc value is that 1 corresponding channel is translated when first crc value or second crc value are 1
Code result.
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