CN101615972B - Methods and devices for rank check and rank mask as well as communication system - Google Patents
Methods and devices for rank check and rank mask as well as communication system Download PDFInfo
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- CN101615972B CN101615972B CN 200810127100 CN200810127100A CN101615972B CN 101615972 B CN101615972 B CN 101615972B CN 200810127100 CN200810127100 CN 200810127100 CN 200810127100 A CN200810127100 A CN 200810127100A CN 101615972 B CN101615972 B CN 101615972B
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Abstract
The embodiment of the invention discloses a method for rank check. The method comprises the following steps: receiving a cyclic redundancy check (CRC) code scrambled with a Rank; descrambling the CRC code by the received Rank; checking the CRC code obtained after descrambling; and judging whether the received Rank is correctly received or not according to a checking result of the CRC code. The embodiment of the invention also discloses a device for rank check, a method and a device for rank mask as well as a communication system. The methods, the devices and the communication system can provide a check mechanism for the Rank on the premise of no extra signaling cost increase, thereby improving the reliability for controlling the signaling receiving.
Description
Technical field
The present invention relates to communication technical field, particularly relate to order add cover, method of calibration, device and communication system.
Background technology
In recent years, 3-G (Generation Three mobile communication system) progressively worldwide realizes commercial.In order to keep the competitiveness of 3-G (Generation Three mobile communication system) in following 10 years, its performance, function etc. are promoted comprehensively, 3GPP is organized in and has formally begun the 3G (Third Generation) Moblie Long Term Evolution in December, 2004 (Long TermEvolution is hereinafter to be referred as the LTE) standardization effort of system.
The LTE physical layer specification relates to all many-sides such as upstream control signaling, uplink reference signals, descending control signaling, downlink reference signal, chnnel coding, rate-matched.Wherein, upstream control signaling comprises: ACK (ACKnowledge Character, acknowledge character)/NACK (Negative ACKnowledgeCharacter, non-acknowledge character), channel quality indication (Channel Quality Indicator, hereinafter to be referred as: CQI) and the pre-coding matrix of multiaerial system indication (Precoding Matrix Indicator, hereinafter to be referred as: PMI) and order (hereinafter to be referred as signaling such as Rank).
In general, upstream data the ascending physical signal shared channel (Physical Uplink SharedChannel hereinafter to be referred as: PUSCH) transmission, upstream control signaling the ascending physical signal control channel (Physical Uplink Control Channel, hereinafter to be referred as: PUCCH) go up transmission.If existing upstream data has upstream control signaling again, then upstream data and upstream control signaling can multiplexing transmission together on PUSCH.In the prior art, the position of upstream control signaling on PUSCH determined, CQI/PMI is mapped to the upper end of Resource Block by preferential mode of time, and ACK/NACK then from bottom to top is mapped in the both sides of pilot tone.Because the error probability of Rank will be lower than CQI/PMI, in the prior art Rank is adopted modulating-coding and the resource mapping method the same with ACK/NACK, and be close to ACK/NACK.
For a kind of verification scheme is provided to CQI/PMI, information bit is adopted the cyclic redundancy check (CRC) of 8 bits greater than the CQI/PMI of 11 bits, and (Cyclic Redundancy Check is hereinafter to be referred as CRC) sign indicating number.The generator polynomial of CRC sign indicating number is
g
CRC8(D)＝[D
8+D
7+D
4+D
3+D+1]
Like this, the base station can judge whether CQI/PMI correctly receives according to the check results of CRC, thereby determines whether adopt CQI/PMI at this moment.
Yet the present inventor finds that in realizing process of the present invention the code book set of CQI/PMI is to be determined by Rank, if Rank makes mistakes, even the success of the CRC check of CQI/PMI, the CQI/PMI of this moment also is invalid, can not be adopted by the base station.Therefore, when determining whether to adopt the CQI/PMI of reception, do not consider the influence that Rank brings in the prior art.
Summary of the invention
The embodiment of the invention provides the order verification, adds the method for covering, device and communication system, has improved the reliability that the control signaling receives.
For achieving the above object, the embodiment of the invention proposes a kind of order method of calibration, may further comprise the steps:
The cyclic redundancy check (CRC) codes of order Rank that received scrambling;
Use the Rank that receives that described CRC sign indicating number is carried out descrambling;
Carry out the CRC code check according to the CRC that obtains behind the descrambling;
According to CRC code check result, judge whether the Rank of described reception correctly receives.
Embodiments of the invention also propose a kind of order calibration equipment, comprising:
Receiver module, the cyclic redundancy check (CRC) codes of Rank that be used for to have received scrambling;
Descrambling module is used for using the Rank that receives that the described CRC sign indicating number that described receiver module receives is carried out descrambling;
The verification module is used for carrying out verification according to the CRC sign indicating number that obtains behind the described descrambling module descrambling;
Determination module is used for the check results according to described verification module, judges whether Rank correctly receives.
Embodiments of the invention also propose a kind of order and add the method for covering, and may further comprise the steps:
Generate the CRC sign indicating number;
With the Rank scrambling on described CRC sign indicating number;
The described CRC sign indicating number of Rank that sent scrambling.
Embodiments of the invention also propose a kind of order and add and cover device, comprising:
CRC sign indicating number generation unit is used for generating the CRC sign indicating number;
Add and cover the unit, be used for the Rank scrambling at described CRC sign indicating number;
Transmitting element, the described CRC sign indicating number of Rank that be used for to have sent scrambling.
The embodiment of the invention also provides a kind of communication system, comprising: base station equipment and terminal equipment,
Described terminal equipment be used for to generate the CRC sign indicating number, with the Rank scrambling on described CRC sign indicating number, and to the described base station equipment CRC sign indicating number of Rank that sent described scrambling;
Described base station equipment, the CRC sign indicating number of Rank that be used for to have received scrambling that described terminal equipment sends uses the Rank that receives that described CRC sign indicating number is carried out descrambling, carries out the CRC code check according to the CRC sign indicating number that obtains behind the descrambling, if the success of CRC code check judges that then the Rank of described reception correctly receives.
The technical scheme that the embodiment of the invention provides on CRC, for Rank provides a kind of verification scheme, makes the Rank scrambling under the prerequisite that does not increase extra signaling consumption, can know whether Rank correctly receives; Improved control signaling reception reliability.
Description of drawings
Fig. 1 is the schematic flow sheet of an embodiment of order method of calibration of the present invention;
Fig. 2 is the schematic flow sheet of another embodiment of order method of calibration of the present invention;
Fig. 3 is an example structure schematic diagram of order calibration equipment of the present invention;
Fig. 4 is another example structure schematic diagram of order calibration equipment of the present invention;
Fig. 5 adds an embodiment schematic flow sheet of the method for covering for order of the present invention;
Fig. 6 covers an example structure schematic diagram of device for order of the present invention adds.
Embodiment
The embodiment of the invention provides the verification scheme of Rank, makes under the prerequisite that does not increase extra signaling consumption, can know whether Rank correctly receives.
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail:
As shown in Figure 1, be an embodiment schematic flow sheet of order method of calibration of the present invention.May further comprise the steps:
Terminal in the process that the CRC sign indicating number is encoded, with the Rank scrambling on the CRC sign indicating number.If there is CQI/PMI among the PUSCH, then with the Rank scrambling on the CRC of CQI/PMI sign indicating number; If there is not CQI/PMI among the PUSCH, then with the Rank scrambling on the CRC of data sign indicating number.
The Rank that it will be appreciated by persons skilled in the art that this reception can receive before CQI/PMI (or data) report subframe, also can receive when same subframe is transmitted with CQI/PMI (or data).
At this moment, two kinds of situations are arranged:
If verification succeeds judges that Rank correctly receives.
If the verification failure judges that also the Rank that receives correctly receives.Because: if the verification failure may be that CQI/PMI (or data) mistake receives, also may be that the Rank mistake receives.But because the error probability of Rank far below CQI/PMI (or data), can judge that Rank correctly receives at this moment, and CQI/PMI (or data) mistake receives.
Be example with the Rank scrambling at CQI/PMI, the error probability of supposing CQI/PMI is that the error probability of 1%, Rank is 0.1%.Wherein, CQI/PMI and Rank verification make mistakes and do not comprise that the verification that causes owing to CRC self error detecing capability makes mistakes.
CQI/PMI and Rank verification error situation are as shown in table 1:
Table 1 CQI/PMI and Rank verification error situation
| CQI/PMI and Rank error situation | Probability | Whether verification makes mistakes CQI/PMI | Whether verification makes mistakes Rank |
| CQI/PMI correctly receives, and Rank correctly receives | 99％×99.9％≈98.9％ | Not | Not |
| CQI/PMI correctly receives, and the Rank mistake receives | 99％×0.1％≈0.1％ | Be | Be |
| The CQI/PMI mistake receives, and Rank correctly receives | 1％×99.9％≈1％ | Not | Not |
| The CQI/PMI mistake receives, and the Rank mistake receives | 1％×0.1％＝0.001％ | Not | Be |
As shown in Table 1, CQI/PMI verification error probability is about the verification error probability of 0.1%, the Rank (99% * 0.1%+1% * 0.1%=0.1%) that is 0.1%.
Be example with the Rank scrambling at the CRC of data, the error probability of tentation data is that the error probability of 10%, Rank is 0.1%, and wherein, data and Rank verification make mistakes and do not comprise that the verification that causes owing to CRC self error detecing capability makes mistakes.
Data and Rank verification error situation are as shown in table 2:
Table 2 data and Rank verification error situation
| Data and Rank error situation | Probability | Whether verification makes mistakes data | Whether verification makes mistakes Rank |
| Data correctly receive, and Rank correctly receives | 90％×99.9％≈89.9％ | Not | Not |
| Data correctly receive, and the Rank mistake receives | 90％×0.1％＝0.09％ | Be | Be |
| Error in data receives, and Rank correctly receives | 10％×99.9％≈10％ | Not | Not |
| Error in data receives, and the Rank mistake receives | 10％×0.1％＝0.01％ | Not | Be |
As shown in Table 2, the data check error probability in the embodiment of the invention is the verification error probability of 0.09%, the Rank (90% * 0.1%+10% * 0.1%=0.1%) that is 0.1%.
Present embodiment can be under the prerequisite that does not increase extra signaling consumption, for Rank provides a kind of verification scheme.The base station can determine whether adopt current CQI/PMI and Rank according to check results, has reached the effect that improves control signaling reception reliability.
In order to reduce the error probability of CQI/PMI (or data) verification error probability and Rank, can use the CRC sign indicating number of other the CQI/PMI of Rank (or data) to carry out descrambling, and carry out verification according to the CRC sign indicating number of the CQI/PMI behind other Rank descramblings of use.
It will be appreciated by persons skilled in the art that because maximum 2 bits of Rank, totally four kinds of states.Therefore, use the CRC sign indicating number of other the CQI/PMI of Rank (or data) to carry out descrambling.
At this moment, two kinds of situations are arranged:
If carry out once verification succeeds of verification according to the CRC sign indicating number that obtains behind the Rank descrambling that adopts other, then judge the correct reception of CQI/PMI (or data), the Rank mistake receives.Certainly, also can know correct Rank (that time of verification succeeds, the employed Rank that carries out descrambling was correct Rank) this moment.
All failing if carry out verification according to the CRC sign indicating number that obtains behind the Rank descrambling that adopts other, then may be that the CQI/PMI mistake receives, and also may be that the Rank mistake receives.But because the error probability of Rank, can judge that the CQI/PMI mistake receives far below CQI/PMI, and Rank correctly receives.
As shown in Figure 2, be the schematic flow sheet of another embodiment of order method of calibration of the present invention.Among this embodiment, there to be CQI/PMI among the PUSCH, the Rank scrambling is example at CQI/PMI.This method may further comprise the steps:
Terminal in the process that the CRC sign indicating number of CQI/PMI is encoded, with the Rank scrambling on the CRC sign indicating number, after the base station receives CQI/PMI, the CRC sign indicating number of CQI/PMI of Rank that can obtain scrambling.
Step 202 uses the CRC sign indicating number of the CQI/PMI of Rank that receives to carry out descrambling.
In this step, the Rank of this reception can receive before CQI/PMI reports subframe, also can receive when same subframe is transmitted with CQI/PMI.
Step 203 is carried out verification according to the CRC sign indicating number of the CQI/PMI that obtains behind the descrambling, if verification succeeds, then execution in step 204; If the verification failure, then execution in step 205.
Step 204 judge that Rank correctly receives, and CQI/PMI receives correctly also.
Step 205 uses the CRC sign indicating number of other the CQI/PMI of Rank to carry out descrambling.
In this step, because maximum 2 bits of Rank, that is: four kinds of states are arranged at most.Therefore, can carry out descrambling with the CRC sign indicating number of the CQI/PMI of Rank of other states.
Step 206 is carried out verification according to the CRC sign indicating number that obtains behind the Rank descrambling that uses other, if verification succeeds once, then execution in step 207; If complete verification is all failed, then execution in step 208.
Step 207 judges that CQI/PMI correctly receives, and the Rank mistake receives.
At this moment, can know correct Rank, that is: that time of verification succeeds, the employed Rank that carries out descrambling was correct Rank.
Step 208 judge that the CQI/PMI mistake receives, and Rank receives correctly.
If according to use other the Rank descrambling after the CRC sign indicating number that obtains carry out verification and all fail, then may be that the CQI/PMI mistake receives, also may be that the Rank mistake receives.But, because the error probability of Rank far below CQI/PMI, receive so can judge the CQI/PMI mistake, and Rank correctly receives.
For the ease of comparing, the error probability of supposing CQI/PMI is that the error probability of 1%, Rank is 0.1%.Wherein, CQI/PMI and Rank verification make mistakes and do not comprise that the verification that causes owing to CRC self error detecing capability makes mistakes.
CQI/PMI and Rank verification error situation are as shown in table 3:
Table 3 CQI/PMI and Rank verification error situation
| CQI/PMI and Rank error situation | Probability | Whether verification makes mistakes CQI/PMI | Whether verification makes mistakes Rank |
| CQI/PMI correctly receives, and Rank correctly receives | 99％×99.9％≈98.9％ | Not | Not |
| CQI/PMI correctly receives, and the Rank mistake receives | 99％×0.1％≈0.1％ | Not | Not |
| The CQI/PMI mistake receives, and Rank correctly receives | 1％×99.9％≈1％ | Not | Not |
| The CQI/PMI mistake receives, and the Rank mistake receives | 1％×0.1％＝0.001％ | Not | Be |
As shown in Table 3, CQI/PMI verification error probability is that the verification error probability of 0, Rank is 0.001%.
Simultaneously, because Rank has been increased error correction, the error probability of Rank is 0.001%, only is 1% of prior art scheme.
It will be appreciated by persons skilled in the art that if there is not CQI/PMI among the PUSCH, then can be with the Rank scrambling on the CRC of data, the position of CQI/PMI is replaced with data.
When on the CRC of Rank scrambling in data, the error probability of tentation data is that the error probability of 10%, Rank is 0.1%.Wherein, data and Rank verification make mistakes and do not comprise that the verification that causes owing to CRC self error detecing capability makes mistakes.
Data and Rank verification error situation are as shown in table 4:
Table 4 data and Rank verification error situation
| Data and Rank error situation | Probability | Whether verification makes mistakes data | Whether verification makes mistakes Rank |
| Data correctly receive, and Rank correctly receives | 90％×99.9％≈89.9％ | Not | Not |
| Data correctly receive, and the Rank mistake receives | 90％×0.1％＝0.09％ | Not | Not |
| Error in data receives, and Rank correctly receives | 10％×99.9％≈10％ | Not | Not |
| Error in data receives, and the Rank mistake receives | 10％×0.1％＝0.01％ | Not | Be |
As shown in Table 4, the data check error probability is that the verification error probability of 0, Rank is 0.01%.
Simultaneously, because Rank has been increased error correction, the error probability of Rank is 0.01%, is 10% of prior art scheme.
The technical scheme of the embodiment of the invention on the CRC of CQI/PMI (or data), for Rank provides a kind of verification scheme, and does not increase extra signaling consumption with the Rank scrambling.In addition, the base station can determine whether adopt current CQI/PMI (or data) and Rank according to check results, has reached the effect that improves control signaling reception reliability.
As shown in Figure 3, be the structural representation of an embodiment of order calibration equipment of the present invention.This calibration equipment comprises:
Terminal in the process that the CRC sign indicating number is encoded, with the Rank scrambling on the CRC sign indicating number.If there is CQI/PMI among the PUSCH, can be with the Rank scrambling on the CRC of CQI/PMI sign indicating number; If there is not CQI/PMI among the PUSCH, can be with the Rank scrambling on the CRC of data sign indicating number.
Wherein, the Rank of this reception can receive before CQI/PMI reports subframe, also can receive when same subframe is transmitted with CQI/PMI.
In the present embodiment, if verification module 303 verification succeeds, then determination module 304 judges that Rank correctly receives.If verification module 303 verifications failure, then determination module 304 judges that also the Rank that receives correctly receives.Because: if verification module 103 verifications failure may be that the CQI/PMI mistake receives, also may be that the Rank mistake receives.But because the error probability of Rank far below CQI/PMI, can judge that Rank correctly receives at this moment, and the CQI/PMI mistake receives.
The calibration equipment of the embodiment of the invention for Rank provides a kind of verification scheme, has improved control signaling reception reliability under the prerequisite that does not increase extra signaling consumption.
Be, the Rank calibration equipment of the embodiment of the invention can be included in the base station with it will be appreciated by those skilled in the art that, makes the base station determine whether adopt current CQI/PMI and Rank according to check results, has reached the effect that improves control signaling reception reliability.
It will be appreciated by persons skilled in the art that if there is not CQI/PMI among the PUSCH, then can be with the Rank scrambling on the CRC of data, the position of CQI/PMI is replaced with data.
As shown in Figure 4, the structural representation of another embodiment of order calibration equipment of the present invention.Among this embodiment, be example there to be CQI/PMI among the PUSCH.This calibration equipment comprises:
Terminal in the process that the CRC sign indicating number of CQI/PMI is encoded, with the Rank scrambling on the CRC sign indicating number, after the base station receives CQI/PMI, the CRC sign indicating number of CQI/PMI of Rank that can obtain scrambling.
The Rank of this reception can receive before CQI/PMI reports subframe, also can receive when same subframe is transmitted with CQI/PMI.
In the present embodiment, if verification module 403 verification succeeds, then determination module 404 judges that Rank correctly receives.
If verification module 403 verifications failure, descrambling module 402 also is used for using other the CRC sign indicating number of Rank to carry out descrambling.
Be, because maximum 2 bits of Rank namely have four kinds of states at most with it will be appreciated by those skilled in the art that.Therefore, can be respectively carry out descrambling with other Rank (except that Rank that receives).
At this moment, two kinds of situations are arranged:
If verification module 403 uses the CRC sign indicating number behind other the Rank descrambling to carry out once verification succeeds of verification according to descrambling module 406, determination module 404 is used for also judging that the Rank that receives be wrong reception.At this moment, can know correct Rank: because verification module 403 verification succeeds once illustrates that CQI/PMI correctly receives.Therefore, that time of verification succeeds, the employed Rank that carries out descrambling was correct Rank.
If verification module 403 is used the CRC sign indicating number behind other the Rank descrambling to carry out verification and all failed according to descrambling module 406, then determination module 404 is used for also judging that the Rank that receives be correct reception.Determination module 404 judges that Rank for the correct reason that receives is in this case: may be that the CQI/PMI mistake receives this moment, also may be that the Rank mistake receives.But, because the error probability of Rank far below CQI/PMI, therefore, can judge that the CQI/PMI mistake receives, and Rank receives correctly.
In the present embodiment, after the CRC sign indicating number of verification module 403 after according to the Rank descrambling that use to receive carries out the verification failure, can carry out verification according to the CRC sign indicating number behind the Rank descrambling that uses other.Like this, can determine further whether the Rank that receives is correct.The Rank calibration equipment of present embodiment can make the error probability of Rank further descend.
Calibration equipment in the embodiment of the invention is under the prerequisite that does not increase extra signaling consumption, for Rank provides a kind of verification scheme.
Be, the Rank calibration equipment of the embodiment of the invention can be included in the base station with it will be appreciated by those skilled in the art that, makes the base station determine whether adopt current CQI/PMI and Rank according to check results, has reached the effect that improves control signaling reception reliability.
It will be appreciated by persons skilled in the art that if there is not CQI/PMI among the PUSCH, then can be with the Rank scrambling on the CRC of data, the position of CQI/PMI is replaced with data.
The order calibration equipment that it will be appreciated by persons skilled in the art that present embodiment can place base station equipment, is used for carrying out the order verification.
As shown in Figure 5, the embodiment of the invention also provides a kind of order to add the method for covering.This method comprises:
Step 501 generates the CRC sign indicating number.
The mode that generates the CRC sign indicating number in this step and the prior art can be identical, do not repeat them here.
Step 502, with the Rank scrambling on this CRC sign indicating number.
In this step, in the process that the CRC sign indicating number is encoded, with the Rank scrambling on the CRC sign indicating number.If there is CQI/PMI among the PUSCH, then with the Rank scrambling on the CRC of CQI/PMI sign indicating number; If there is not CQI/PMI among the PUSCH, then with the Rank scrambling on the CRC of data sign indicating number.
For example, a kind of implementation of Rank scrambling on the CRC sign indicating number of CQI/PMI (or data) is as follows:
CRC
mask，N＝(CRC
N+Rank
N)mod2
Wherein, CRC
NThe CRC sign indicating number of N bit before the expression scrambling, Rank
NThe Rank scramble sequence of expression N bit, CRC
Mask, NThe CRC sign indicating number of N bit after the expression scrambling.Rank
NObtain by the Rank repetition of 2 bits or the coded system of other (N, 2), for the Rank of 1 bit, it is repeated once the back by the Rank processing of 2 bits.For example, for the CRC sign indicating number of 8 bits, through the Rank after the Rank repetition
8Scramble sequence sees Table 5.
Table 5 scramble sequence Rank
8
| Rank | Rank 8 |
| 00(0) | 00000000 |
| 01 | 01010101 |
| 10 | 10101010 |
| 11(1) | 11111111 |
Step 503, the CRC sign indicating number of Rank that sent scrambling.
In this step, with scrambling the CRC sign indicating number of Rank send to the base station, carry out the Rank verification for the base station and use.
Present embodiment on the CRC of CQI/PMI or data sign indicating number, for Rank provides a kind of verification scheme, has improved the reliability that the control signaling receives with the Rank scrambling under the prerequisite that does not increase extra signaling consumption.
As shown in Figure 6, the embodiment of the invention also provides a kind of order to add the device of covering.This device comprises:
CRC sign indicating number generation unit 601 is used for generating the CRC sign indicating number;
Add and cover unit 602, be used for the CRC sign indicating number that the Rank scrambling is generated at CRC sign indicating number generation unit 601;
Transmitting element 603, the described CRC sign indicating number of Rank that be used for to have sent scrambling.
Preferably, add and cover unit 602 and comprise: be used for the subelement of Rank scrambling on the CRC of CQI/PMI sign indicating number; Perhaps be used for the subelement of Rank scrambling on the CRC of data sign indicating number.
The order scrambling apparatus that it will be appreciated by persons skilled in the art that present embodiment can be included in the terminal equipment, be used for scrambling Rank on the CRC of the CQI/PMI sign indicating number or on the CRC of data sign indicating number scrambling Rank.
The embodiment of the invention also provides a kind of communication system, and this system comprises: base station equipment and terminal equipment,
This terminal equipment be used for to generate the CRC sign indicating number, with the Rank scrambling on this CRC sign indicating number, and to this base station equipment CRC sign indicating number of Rank that sent scrambling;
This base station equipment, the CRC sign indicating number of Rank that be used for to have received scrambling that this terminal equipment sends uses the Rank that receives that this RC sign indicating number is carried out descrambling, carries out the CRC code check according to the CRC sign indicating number that obtains behind the descrambling, if the success of CRC code check judges that then the Rank of this reception correctly receives.
Preferably, if CRC code check failure, described base station equipment, also be used for using other the scrambling of Rank the CRC sign indicating number of Rank carry out descrambling, and carry out the CRC code check according to the CRC sign indicating number that obtains behind the Rank descrambling that uses other.
Preferably, all fail if the CRC sign indicating number that this base station equipment obtains after according to the Rank descrambling that uses other carries out CRC code check complete verification, this base station equipment is used for also judging that the CQI/PMI mistake receives, and the Rank of described reception correctly receives.
Preferably, if carry out once verification succeeds of CRC code check according to the CRC sign indicating number that obtains behind the Rank descrambling that uses other, this base station equipment is used for also judging that the Rank mistake of described reception receives, and CQI/PMI correctly receives.
Present embodiment on the CRC of CQI/PMI or data sign indicating number, for Rank provides a kind of verification scheme, has improved the reliability that the control signaling receives with the Rank scrambling under the prerequisite that does not increase extra signaling consumption.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprises that some instructions are used so that an equipment is carried out the described method of each embodiment of the present invention.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.
Claims (15)
1. an order method of calibration is characterized in that, may further comprise the steps:
The cyclic redundancy check (CRC) codes of order Rank that received scrambling;
Use the Rank that receives that described CRC sign indicating number is carried out descrambling;
Carry out the CRC code check according to the CRC sign indicating number that obtains behind the descrambling;
According to CRC code check result, judge whether the Rank of described reception correctly receives;
If there is channel quality indication/pre-coding matrix indication CQI/PMI in the transmission channel, described CRC sign indicating number generates according to described CQI/PMI;
If there is not described CQI/PMI in the described transmission channel, described CRC sign indicating number generates according to data;
If described Rank scrambling is on the CRC of described CQI/PMI, and the success of described CRC code check, judge that described CQI/PMI correctly receives;
If described Rank scrambling is on the CRC of described data, and the success of described CRC code check, judge that described data correctly receive;
If described Rank scrambling is on the CRC of described CQI/PMI, and the failure of described CRC code check, judge that described CQI/PMI mistake receives;
If described Rank scrambling is on the CRC of described data, and the failure of described CRC code check, judge that described error in data receives.
2. order method of calibration as claimed in claim 1 is characterized in that,
If described CRC code check success judges that the Rank of described reception correctly receives.
3. order method of calibration as claimed in claim 1 is characterized in that,
If described CRC code check failure is because the error probability of Rank judges that far below CQI/PMI or data the Rank of described reception correctly receives.
4. order method of calibration as claimed in claim 1 is characterized in that, described method also comprises:
If described CRC code check mistake,
The Rank that uses other to described scrambling the CRC sign indicating number of Rank carry out descrambling;
Carry out the CRC code check according to the CRC sign indicating number that obtains behind the Rank descrambling that uses other.
5. order method of calibration as claimed in claim 4 is characterized in that, described method also comprises:
All fail if carry out CRC code check complete verification according to the CRC sign indicating number that obtains behind the Rank descrambling that uses other,
Judge that described CQI/PMI mistake receives, the Rank of described reception correctly receives.
6. order method of calibration as claimed in claim 4 is characterized in that, described method also comprises:
If according to using the CRC sign indicating number that obtains behind described other the Rank descrambling to carry out once verification succeeds of CRC code check, judge that then the Rank mistake of described reception receives, described CQI/PMI correctly receives.
7. order method of calibration as claimed in claim 6 is characterized in that, described method also comprises:
The Rank that carries out descrambling when obtaining verification succeeds is the correct Rank that receives.
8. an order calibration equipment is characterized in that, comprising:
Receiver module, the CRC sign indicating number of Rank that be used for to have received scrambling;
Descrambling module is used for using the Rank that receives that the described CRC sign indicating number that described receiver module receives is carried out descrambling;
The verification module is used for carrying out verification according to the CRC sign indicating number that obtains behind the described descrambling module descrambling;
Determination module is used for the check results according to described verification module, judges whether the Rank of described reception correctly receives;
If described calibration mode block check failure, described descrambling module, also be used for using other the scrambling of Rank the CRC sign indicating number of Rank carry out descrambling;
Described verification module also is used for using the CRC sign indicating number that obtains behind other the Rank descrambling to carry out verification according to described descrambling module;
If described verification module is used the CRC sign indicating number that obtains behind described other the Rank descrambling to carry out verification according to described descrambling module and all failed, described determination module is used for also judging that the Rank of described reception be correct reception;
If described verification module uses the CRC sign indicating number that obtains behind described other the Rank descrambling to carry out once verification succeeds of verification according to described descrambling module,
Described determination module is used for also judging that the Rank of described reception is wrong the reception.
9. order calibration equipment as claimed in claim 8 is characterized in that,
If described calibration mode block check success,
Described determination module is used for judging that the Rank of described reception correctly receives.
10. a base station equipment is characterized in that, described base station equipment comprises:
As any described order calibration equipment in the claim 8 to 9.
11. an order adds the method for covering, and it is characterized in that, comprising:
Generate the CRC sign indicating number;
With the Rank scrambling on described CRC sign indicating number;
The CRC sign indicating number of described Rank that sent scrambling;
If there is channel quality indication/pre-coding matrix indication CQI/PMI in the transmission channel, described CRC sign indicating number generates according to described CQI/PMI; If there is not described CQI/PMI in the described transmission channel, described CRC sign indicating number generates according to data; If described Rank scrambling is on the CRC of described CQI/PMI sign indicating number, and the success of described CRC code check, judge that described CQI/PMI correctly receives; If described Rank scrambling is on the CRC of described data sign indicating number, and the success of described CRC code check, judge that described data correctly receive; If described Rank scrambling is on the CRC of described CQI/PMI sign indicating number, and the failure of described CRC code check, judge that described CQI/PMI mistake receives; If described Rank scrambling is on the CRC of described data sign indicating number, and the failure of described CRC code check, judge that described error in data receives.
Cover device 12. an order adds, it is characterized in that, comprising:
CRC sign indicating number generation unit is used for generating the CRC sign indicating number;
Add and cover the unit, be used for the Rank scrambling at described CRC sign indicating number;
Transmitting element, the CRC sign indicating number of described Rank that be used for to have sent scrambling;
Described adding, covered the unit and comprise:
Be used for the subelement of described Rank scrambling on the CRC of CQI/PMI sign indicating number; Perhaps
Be used for the subelement of described Rank scrambling on the CRC of data sign indicating number;
If there is channel quality indication/pre-coding matrix indication CQI/PMI in the transmission channel, described CRC sign indicating number generates according to described CQI/PMI; If there is not described CQI/PMI in the described transmission channel, described CRC sign indicating number generates according to data; If described Rank scrambling is on the CRC of described CQI/PMI sign indicating number, and the success of described CRC code check, judge that described CQI/PMI correctly receives; If described Rank scrambling is on the CRC of described data sign indicating number, and the success of described CRC code check, judge that described data correctly receive; If described Rank scrambling is on the CRC of described CQI/PMI sign indicating number, and the failure of described CRC code check, judge that described CQI/PMI mistake receives; If described Rank scrambling is on the CRC of described data sign indicating number, and the failure of described CRC code check, judge that described error in data receives.
13. a terminal equipment is characterized in that, comprises that order as claimed in claim 12 adds to cover device.
14. a communication system is characterized in that, comprising: base station equipment and terminal equipment,
Described terminal equipment be used for to generate the CRC sign indicating number, with the Rank scrambling on described CRC sign indicating number, and to the described base station equipment CRC sign indicating number of described Rank that sent described scrambling;
Described base station equipment, the CRC sign indicating number of Rank that be used for to have received scrambling that described terminal equipment sends uses the Rank that receives that described CRC sign indicating number is carried out descrambling, carries out the CRC code check according to the CRC sign indicating number that obtains behind the descrambling, if the success of CRC code check judges that then the Rank of described reception correctly receives;
If there is channel quality indication/pre-coding matrix indication CQI/PMI in the transmission channel, described CRC sign indicating number generates according to described CQI/PMI; If there is not described CQI/PMI in the described transmission channel, described CRC sign indicating number generates according to data;
If described Rank scrambling is on the CRC of described CQI/PMI, and the success of described CRC code check, judge that described CQI/PMI correctly receives;
If described Rank scrambling is on the CRC of described data, and the success of described CRC code check, judge that described data correctly receive;
If described Rank scrambling is on the CRC of described CQI/PMI, and the failure of described CRC code check, judge that described CQI/PMI mistake receives;
If described Rank scrambling is on the CRC of described data, and the failure of described CRC code check, judge that described error in data receives;
If there is channel quality indication/pre-coding matrix indication CQI/PMI in the transmission channel, described CRC sign indicating number generates according to described CQI/PMI; If described Rank scrambling is on the CRC of described CQI/PMI sign indicating number, and the failure of described CRC code check, judge that described CQI/PMI mistake receives; If described Rank scrambling is on the CRC of described data sign indicating number, and the failure of described CRC code check, judge that described error in data receives.
15. communication system as claimed in claim 14 is characterized in that, if the failure of CRC code check,
Described base station equipment, the Rank that also be used for to use other to described scrambling the CRC sign indicating number of Rank carry out descrambling, and according to using the CRC sign indicating number that obtains behind described other the Rank descrambling to carry out the CRC code check.
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| CN 200810127100 CN101615972B (en) | 2008-06-25 | 2008-06-25 | Methods and devices for rank check and rank mask as well as communication system |
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| CN101615972B true CN101615972B (en) | 2013-10-09 |
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| CN1353521A (en) * | 2000-11-10 | 2002-06-12 | 三星电子株式会社 | Device and method for detecting error in cyclic redundant check code carrying reverse order check digit |
| CN1385982A (en) * | 2001-05-10 | 2002-12-18 | 华为技术有限公司 | Method for retransmitting information by changing intersection length through merging data package |
| CN1449206A (en) * | 2002-04-02 | 2003-10-15 | 华为技术有限公司 | Dynamic channel allocation combined data retransmitting method in time-division duplex system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1353521A (en) * | 2000-11-10 | 2002-06-12 | 三星电子株式会社 | Device and method for detecting error in cyclic redundant check code carrying reverse order check digit |
| CN1385982A (en) * | 2001-05-10 | 2002-12-18 | 华为技术有限公司 | Method for retransmitting information by changing intersection length through merging data package |
| CN1449206A (en) * | 2002-04-02 | 2003-10-15 | 华为技术有限公司 | Dynamic channel allocation combined data retransmitting method in time-division duplex system |
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