CN109962759A - A kind of uplink service PUSCH detection method and system - Google Patents
A kind of uplink service PUSCH detection method and system Download PDFInfo
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- CN109962759A CN109962759A CN201711424224.5A CN201711424224A CN109962759A CN 109962759 A CN109962759 A CN 109962759A CN 201711424224 A CN201711424224 A CN 201711424224A CN 109962759 A CN109962759 A CN 109962759A
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- pusch
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- radio frame
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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
- H04L1/12—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
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1896—ARQ related signaling
Abstract
The present invention provides a kind of uplink service PUSCH detection method and system, which comprises receives the radio frame signal that UE is sent；Detection decoding is carried out according to DTX situation and non-DTX situation respectively to the radio frame signal, it is corresponding to obtain the first TB bit sequence and the 2nd TB bit sequence；The first TB bit sequence and the 2nd TB bit sequence are verified respectively, select wherein verifying correctly decoding result of the decoding as target PUSCH；Wherein, the radio frame signal includes the radio frame signal in the radio frame signal and PUSCH subband in PUCCH subband.Method provided by the invention is in multi-sub-band system, the sub-frame of uplink signal that base station is received carries out detection twice according to two kinds of hypothesis of DTX and non-DTX and decodes, and it selects to verify correctly decoding result and improves multi-sub-band system PUSCH detection correctness as PUSCH testing result.
Description
Technical field
The present invention relates to fields of communication technology, more particularly, to a kind of uplink service PUSCH detection method and system.
Background technique
In electric power multi-sub-band system, frequency domain resource has multiple subbands, and each subband bandwidth is identical, such as: each subband
There are 25KHz bandwidth, 11 subcarriers, multi-sub-band system shares 480 subbands.For a PDCCH in electric power multi-sub-band system
The PUSCH transmission of scheduling, in order to support big TB block, single TB block can be in resource impact to multiple radio frames, while may be used also
To carry out multiplicating transmission, to support depth to cover.The ACK/NACK information of PDSCH is anti-to NodeB by PUCCH channel
Feedback.In order to reduce PDSCH HARQ time delay, need to pass through PUCCH channel in time when PDSCH decoding result comes out anti-to NodeB
Present ACK/NACK information.Conflict is generated in PUCCH transmission and same user or the ongoing PUSCH transmission of other users
When, UE can adjust PUSCH user's launch scenario, these PUSCH users is made to concede the subband of PUCCH occupancy, avoid because of PUCCH
The problem that identical RE causes PUSCH detection mistake is occupied with PUSCH.
If (adjustment is sent UE when (User Equipment, user equipment) transmitting terminal supports PUCCH and PUSCH to conflict
Scheme, the receiving end NodeB there is a problem in that, UE in the PDCCH licensing process of detection dispatching downlink PDSCH, due to
The problems such as bad channel quality, may cause detection failure, at this time UE will not feeding back ACK/nack message on uplink, from
From the perspective of NodeB, such case is exactly DTX (Discontinuous Transmissio, discontinuous transmission).Occurring
It is not sent further on PUCCH in the radio frames and subband UE that should send PUCCH when DTX, according to the dispatch situation of PUSCH, this UE
Or other UE may normally send PUSCH data in the radio frames and subband that should send PUCCH, NodeB is simultaneously at this time
Do not know DTX, therefore NodeB appoints launch scenario when so conflicting according to PUCCH and PUSCH to detect PUSCH and PUCCH.In this way
Performance after PUSCH merges can be reduced, it is likely that will lead to PUSCH decoding error.
Summary of the invention
To solve in existing multi-sub-band system, NodeB can not determine whether to send out after receiving up-link wireless frame signal
It gives birth to DTX and causes the situation for detecting mistake to PUSCH, propose a kind of uplink service PUSCH detection method.
According to the first aspect of the invention, a kind of uplink service PUSCH detection method is provided, comprising:
S1 receives the radio frame signal that UE is sent；
S2 carries out detection decoding according to DTX situation and non-DTX situation respectively to the radio frame signal, corresponding to obtain the
One TB bit sequence and the 2nd TB bit sequence；
S3 respectively verifies the first TB bit sequence and the 2nd TB bit sequence, and selection is wherein verified
Correctly decoding result of the decoding result as target PUSCH.
Wherein, the radio frame signal includes the radio frames letter in the radio frame signal and PUSCH subband in PUCCH subband
Number.
Wherein, the step of carrying out detection decoding according to DTX situation in the S2, obtaining the first TB bit sequence is specifically wrapped
It includes: the radio frame signal in PUCCH subband and in PUSCH subband is received, in the PUCCH subband and in PUSCH subband
Radio frame signal detects according to PUSCH decode together, obtains the first TB bit sequence.
Wherein, the step of carrying out detection decoding according to non-DTX situation in the S2, obtaining the 2nd TB bit sequence is specifically wrapped
It includes: receiving the radio frame signal in PUSCH subband, detection decoding is carried out to the radio frame signal in the PUSCH subband, obtain
2nd TB bit sequence.
Wherein, respectively the first TB bit sequence and the 2nd TB bit sequence verify specifically in the S3
To carry out cyclic redundancy check to the first TB bit sequence and the 2nd TB bit sequence.
Wherein, the step S3 includes: when the first TB bit sequence and the 2nd TB bit sequence all verify mistake
Accidentally, then determine that PUSCH detects mistake.
According to the second aspect of the invention, a kind of uplink service PUSCH detection system is provided, comprising:
Radio frames receiving module, for receiving the radio frame signal of UE transmission；
Decoding module is detected, is translated for carrying out detection according to DTX situation and non-DTX situation respectively to the radio frame signal
Code, it is corresponding to obtain the first TB bit sequence and the 2nd TB bit sequence；
Sequence effect module, for testing respectively the first TB bit sequence and the 2nd TB bit sequence
Card selects wherein correctly decoding as target PUSCH and decodes result.
Wherein, described the step of carrying out detection decoding according to DTX situation, obtaining the 2nd TB bit sequence, specifically includes: connecing
The radio frame signal in PUCCH subband and in PUSCH subband is received, to the radio frames in the PUCCH subband and in PUSCH subband
Signal detects according to PUSCH decode together, obtains the first TB bit sequence.
Wherein, described the step of carrying out detection decoding according to non-DTX situation, obtaining the 2nd TB bit sequence, specifically includes:
The radio frame signal in PUSCH subband is received, detection decoding carried out to the radio frame signal in the PUSCH subband, obtains the
Two TB bit sequences.
According to the third aspect of the invention we, a kind of computer readable storage medium is provided, computer program is stored thereon with,
It is characterized in that, the program is executed by processor a kind of uplink provided by the various possible implementations of above-mentioned first aspect
Business PUSCH detection method.
According to the fourth aspect of the invention, a kind of reverse link traffic channel is provided and signal processing is set when control channel conflicts
It is standby characterized by comprising
At least one processor；And
At least one processor being connected to the processor, in which:
The memory is stored with the program instruction that can be executed by the processor, and the processor calls described program to refer to
Order is able to carry out following operation:
Receive the radio frame signal that UE is sent；
Detection decoding is carried out according to DTX situation and non-DTX situation respectively to the radio frame signal, it is corresponding to obtain the first TB
Bit sequence and the 2nd TB bit sequence；
The first TB bit sequence and the 2nd TB bit sequence are verified respectively, selection is wherein correctly translated
Code result decodes result as target PUSCH.
A kind of uplink service PUSCH detection method proposed by the present invention receives base station upper in multi-sub-band system
Row sub-frame signals carry out detection twice according to two kinds of hypothesis of DTX and non-DTX and decode, and select to verify correctly decoding result as
PUSCH testing result improves multi-sub-band system PUSCH detection correctness.
Detailed description of the invention
Fig. 1 is a kind of flow chart of uplink service PUSCH detection method provided in an embodiment of the present invention；
Fig. 2 is the receiving end a kind of uplink service PUSCH blind Detecting flow chart that further embodiment of this invention provides；
Fig. 3 is a kind of uplink service PUSCH detection system structure chart provided in an embodiment of the present invention；
Fig. 4 is a kind of uplink service PUSCH assay device structures figure provided in an embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
With reference to Fig. 1, Fig. 1 is a kind of flow chart of uplink service PUSCH detection method provided in an embodiment of the present invention, described
Method includes:
S1 receives the radio frame signal that UE is sent.
Specifically, in order to support big TB block, single TB block can be with resource impact in the uplink service of multi-sub-band system
Onto multiple radio frames, while multiplicating transmission can also be carried out, to support depth to cover, in uplink service, for
The feedback information ACK/NACK of PDSCH is sent by PUCCH channel to base station, and under normal circumstances, PUCCH can only occupy entire frequency
One or several subbands of the extreme side in band, and for PUSCH transmission, comprising the subband of PUCCH in possible band occupancy, when
When PUSCH and PUCCH transmission generates subband conflict, in the radio frames of conflict, the subband that PUCCH is occupied is will not be any
What PUSCH was used, therefore, in the radio frame signal that base station receives be comprising from PUSCH subband radio frame signal and
Radio frame signal from PUCCH subband.
S2 carries out detection decoding according to DTX situation and non-DTX situation respectively to the radio frame signal, corresponding to obtain the
One TB bit sequence and the 2nd TB bit sequence.
Specifically, base station is after receiving radio frame signal, according to the case where DTX and the case where non-DTX to radio frames
Signal is decoded, and when DTX occurs, UE will not send PUCCH, therefore, this PUSCH transmission occupy PUCCH and
The subband of PUSCH distribution, the mode that base station carries out detection decoding to radio frame signal is the side mapped according to PUSCH normal resource
Formula carries out detection decoding to radio frame signal, to obtain the first TB bit sequence of decoding output.
After base station receives radio frame signal, while radio frame signal can be decoded according to the case where non-DTX,
When there is no DTX, the subband that PUCCH is occupied is normally to base station feedback ack/nack signal, therefore in this PUSCH
In transmission, the subband of PUCCH will not be occupied, the radio frame signal detection decoded mode that base station carries out is according to PUSCH+PUCCH
The mode of resource impact carries out detection decoding to radio frame signal, to obtain the 2nd TB bit sequence of decoding output.
S3 respectively verifies the first TB bit sequence and the 2nd TB bit sequence, selects wherein correct
Decoding as target PUSCH decode result.
Specifically, verified respectively to the first TB bit sequence obtained in S2 and the 2nd TB bit sequence, and by its
Decoding result of the middle correct TB bit sequence of verifying as target PUSCH.
The UE radio frame signal sent is detected, it is chosen according to DTX situation and non-DTX situation by the method
In correctly decode result as output, avoid PUSCH caused by DTX situation detection mistake, improve on multi-sub-band system
The performance of industry business.
On the basis of the above embodiments, the method also includes: respectively to the first TB bit sequence and described
Two TB bit sequences are verified specifically, carrying out cyclic redundancy check to the first TB bit sequence and the 2nd TB bit sequence.
Specifically, by carrying out cyclic redundancy check code inspection to the first TB bit sequence and the 2nd TB bit sequence
Whether (Cyclic Redundancy Check, CRC) decodes obtained TB bit sequence by detecting so as to determine
Correctly, and using correct result as the testing result of this PUSCH, if the CRC of two kinds of detection modes be all it is correct as a result, if
Select a kind of testing result.
By the method, correct testing result in PUSCH transmission can be effectively chosen, multi-sub-band system is improved
Reliability.
On the basis of the various embodiments described above, the method also includes: when the first TB bit sequence and described second
TB bit sequence all authentication errors then determine that PUSCH detects mistake.
Specifically, then determining that this PUSCH detects mistake when the CRC result of two kinds of detection modes is all mistake.
In another embodiment of the invention, with reference to Fig. 2, it is shown as a kind of upper industry of further embodiment of this invention offer
The business receiving end PUSCH blind Detecting flow chart.
As shown in Fig. 2, being detected to signal, specially base station after the radio frame signal that base station receives UE transmission
It receives and OFDM demodulation is carried out to radio frame signal after signal, thereafter respectively according to PUCCH+PUSCH resource mapping method and just
Normal PUSCH resource mapping method carries out PUSCH to radio frame signal and solves resource impact, PUSCH channel estimation, and noise variance is estimated
Meter, equilibrium merge, and IDFT transformation, demodulation carries out solution business mapping, to the TB bit sequence 1 and TB of acquisition after the operation such as descrambling
Bit sequence 2 carries out CRC validation.To obtain correct PUSCH transmission information.
With reference to Fig. 3, Fig. 3 is a kind of uplink service PUSCH detection system structure chart provided in an embodiment of the present invention, the system
System includes: radio frames receiving module 31, detection decoding module 32 and sequence check module 33.
Wherein, radio frames receiving module 31 is used to receive the radio frame signal of UE transmission.
Specifically, in order to support big TB block, single TB block can be with resource impact in the uplink service of multi-sub-band system
Onto multiple radio frames, while multiplicating transmission can also be carried out, to support depth to cover, in uplink service, for
The feedback information ACK/NACK of PDSCH is sent by PUCCH channel to base station, and under normal circumstances, PUCCH can only occupy entire frequency
One or several subbands of the extreme side in band, and for PUSCH transmission, comprising the subband of PUCCH in possible band occupancy, when
When PUSCH and PUCCH transmission produces subband conflict, in the radio frames of conflict, the subband that PUCCH is occupied is will not be any
What PUSCH was used, therefore, in the radio frame signal that base station receives be comprising from PUSCH subband radio frame signal and
Radio frame signal from PUCCH subband.
Wherein, detection decoding module 32 is used to carry out the radio frame signal according to DTX situation and non-DTX situation respectively
Detection decoding, it is corresponding to obtain the first TB bit sequence and the 2nd TB bit sequence
Specifically, base station is after receiving radio frame signal, according to the case where DTX and the case where non-DTX to radio frames
Signal is decoded, and when DTX occurs, UE will not send PUCCH, therefore, this PUSCH transmission occupy PUCCH and
The subband of PUSCH distribution, the mode that base station carries out detection decoding to radio frame signal is the side mapped according to PUSCH normal resource
Formula carries out detection decoding to radio frame signal, to obtain the first TB bit sequence of decoding output.
After base station receives radio frame signal, while radio frame signal can be decoded according to the case where non-DTX,
When there is no DTX, the subband that PUCCH is occupied is normally to base station feedback ack/nack signal, therefore in this PUSCH
In transmission, the subband of PUCCH will not be occupied, the radio frame signal detection decoded mode that base station carries out is according to PUSCH+PUCCH
The mode of resource impact carries out detection decoding to radio frame signal, to obtain the 2nd TB bit sequence of decoding output.
Wherein, sequence check module 33 for respectively to the first TB bit sequence and the 2nd TB bit sequence into
Row verifying selects wherein correctly decoding as target PUSCH and decodes result.
Specifically, verified respectively to the first TB bit sequence obtained in S2 and the 2nd TB bit sequence, and by its
Decoding result of the middle correct TB bit sequence of verifying as target PUSCH.
The UE radio frame signal sent is detected, it is chosen according to DTX situation and non-DTX situation by this system
In correctly decode result as output, avoid the detection mistake of PUSCH caused by DTX situation, improve multi-sub-band system
The performance of uplink service.
With reference to Fig. 4, a kind of uplink service PUSCH assay device structures figure provided in an embodiment of the present invention is illustrated, it is described
Equipment includes: processor 401, memory 402 and bus 403.
The processor 401 is used to call the program instruction in the memory 402, to execute above-mentioned each method embodiment
Provided method, for example including the radio frame signal that reception UE is sent；To the radio frame signal respectively according to DTX situation
Detection decoding is carried out with non-DTX situation, it is corresponding to obtain the first TB bit sequence and the 2nd TB bit sequence；Respectively to described first
TB bit sequence and the 2nd TB bit sequence are verified, and wherein verifying is selected correctly to decode as target PUSCH's
Decode result.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of uplink service PUSCH detection method characterized by comprising
S1 receives the radio frame signal that UE is sent；
S2 carries out detection decoding according to DTX situation and non-DTX situation respectively to the radio frame signal, corresponding to obtain the first TB
Bit sequence and the 2nd TB bit sequence；
S3 respectively verifies the first TB bit sequence and the 2nd TB bit sequence, and wherein verifying is correct for selection
Decoding result of the decoding as target PUSCH；
Wherein, the radio frame signal includes the radio frame signal in the radio frame signal and PUSCH subband in PUCCH subband.
2. being obtained the method according to claim 1, wherein carrying out detection decoding according to DTX situation in the S2
The step of first TB bit sequence, specifically includes: the radio frame signal in PUCCH subband and PUSCH subband is received, to described
Radio frame signal in PUCCH subband and in PUSCH subband is combined, and carries out solution business mapping, obtains the first TB bit sequence
Column.
3. being obtained the method according to claim 1, wherein carrying out detection decoding according to non-DTX situation in the S2
The step of taking the 2nd TB bit sequence specifically includes: the radio frame signal in PUSCH subband is received, in the PUSCH subband
Radio frame signal carry out solution business mapping, obtain the 2nd TB bit sequence.
4. the method according to claim 1, wherein respectively to the first TB bit sequence and institute in the S3
The 2nd TB bit sequence is stated to be verified specifically, carrying out cyclic redundancy school to the first TB bit sequence and the 2nd TB bit sequence
It tests.
5. the method according to claim 1, wherein the step S3 includes: when the first TB bit sequence
With the 2nd TB bit sequence all authentication errors, then determine that PUSCH detects mistake.
6. a kind of uplink service PUSCH detection system characterized by comprising
Radio frames receiving module, for receiving the radio frame signal of UE transmission；
Decoding module is detected, for carrying out detection decoding according to DTX situation and non-DTX situation respectively to the radio frame signal,
It is corresponding to obtain the first TB bit sequence and the 2nd TB bit sequence；
Sequence effect module is selected for verifying respectively to the first TB bit sequence and the 2nd TB bit sequence
Select wherein verifying correctly decoding result of the decoding as target PUSCH；
Wherein, the radio frame signal includes the radio frame signal in the radio frame signal and PUSCH subband in PUCCH subband.
7. system according to claim 6, which is characterized in that it is described to carry out detection decoding according to DTX situation, obtain first
The step of TB bit sequence, specifically includes: the radio frame signal in PUCCH subband and in PUSCH subband is received, to the PUCCH
Radio frame signal in subband and in PUSCH subband is combined, and carries out solution business mapping, obtains the first TB bit sequence.
8. system according to claim 6, which is characterized in that it is described to carry out detection decoding according to non-DTX situation, obtain the
The step of two TB bit sequences, specifically includes: the radio frame signal in PUSCH subband is received, to the nothing in the PUSCH subband
Line frame signal carries out solution business mapping, obtains the 2nd TB bit sequence.
9. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is held by processor
The step of method as described in any in claims 1 to 5 is realized when row.
10. a kind of uplink service PUSCH detection device characterized by comprising
At least one processor；And at least one processor being connected to the processor, in which:
The memory is stored with the program instruction that can be executed by the processor, and the processor calls described program to instruct energy
Enough execute method as claimed in claim 1 to 5.
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| CN201711424224.5A CN109962759B (en) | 2017-12-25 | 2017-12-25 | Uplink service PUSCH detection method and system |
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| CN201711424224.5A CN109962759B (en) | 2017-12-25 | 2017-12-25 | Uplink service PUSCH detection method and system |
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