CN105634678B - A kind of restorative procedure and device of leak-detection control channel - Google Patents
A kind of restorative procedure and device of leak-detection control channel Download PDFInfo
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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
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- 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
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/203—Details of error rate determination, e.g. BER, FER or WER
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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
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Abstract
The embodiment of the present invention provides the restorative procedure and device of a kind of leak-detection control channel, is related to the communications field, can reduce ascending resource waste, improves downlink throughput, and then improve LTE system performance.The described method includes: carrying out Physical Downlink Control Channel missing inspection detection to user equipment；After detecting Physical Downlink Control Channel described in the user equipment missing inspection, repaired with correcting strategy.The embodiment of the present invention also provides corresponding device.
Description
Present patent application is divisional application, and the application number of original bill is 201280002160.9, and the applying date is 2012
October 25, denomination of invention is: a kind of restorative procedure and device of leak-detection control channel.
Technical field
The present invention relates to the communications field more particularly to the restorative procedures and device of a kind of leak-detection control channel.
Background technique
PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) is LTE (Long
Term Evolution, long term evolution) system one of control channel.It refers to UE (User Equipment, user equipment)
Show that the uplink transmission resource of PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) uses
Situation, including the parameters such as time/frequency resource, modulation and encoding rate used in UE；PDSCH (Physical is indicated simultaneously
Downlink Shared Channel, Physical Downlink Shared Channel) downlink transfer resource service condition.
In LTE system, eNodeB (evolved NodeB, evolved base station) can issue uplink to UE by PDCCH and award
It weighs (UL grant), the UE carries out corresponding transmitting uplink data after receiving the uplink authorization.
But when the uplink authorization described in the terminal missing inspection, it will cause the waste of uplink transmission resource, while downlink being caused to handle up
Rate is relatively low, and then leads to the decline of LTE system performance.
Summary of the invention
The embodiment of the present invention provides the restorative procedure and device of a kind of leak-detection control channel, can reduce ascending resource wave
Take, improves downlink throughput, and then improve LTE system performance.
According to an aspect of the present invention, a kind of restorative procedure of leak-detection control channel is provided, which comprises
PDCCH missing inspection detection is carried out to UE；
After detecting PDCCH described in the UE missing inspection, repaired with correcting strategy.
According to another aspect of the present invention, a kind of base station apparatus is provided, described device includes:
Detection unit, for carrying out PDCCH missing inspection detection to UE；
Repair unit, for after the detection unit detects PDCCH described in the UE missing inspection, with correcting strategy into
Row is repaired.
After adopting the above technical scheme, the restorative procedure of leak-detection control channel provided in an embodiment of the present invention and base station dress
It sets, by carrying out PDCCH missing inspection detection to UE, and after detecting PDCCH described in the UE missing inspection, is carried out with correcting strategy
It is corresponding to repair, so, ascending resource waste can be reduced, improve downlink throughput, and then improve LTE system performance.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Data of the Fig. 1 between base station and UE transmit schematic diagram；
Fig. 2 is the flow chart of the restorative procedure of leak-detection control channel provided in an embodiment of the present invention；
Fig. 3 is a kind of flow chart of the method for determining UE missing inspection PDCCH provided in an embodiment of the present invention；
Fig. 4 is the flow chart of another method for determining UE missing inspection PDCCH provided in an embodiment of the present invention；
Fig. 5 is the structural block diagram of base station apparatus provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, carries out to the technical solution of the embodiment of the present invention clear, complete
Ground description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without making creative work it is obtained it is all its
Its embodiment, shall fall within the protection scope of the present invention.
Embodiment for a better understanding of the invention first carries out the application scenarios of the embodiment of the present invention below with reference to Fig. 1
Related introduction.
In Fig. 1, box 1 to box 12 indicates TTI (Transmission Time Interval, between transmission time
Every).As shown in Figure 1, eNodeB issues uplink authorization (UL Grant), the uplink authorization by PDCCH in first TTI
In include UE transmission upstream data resource location, scheduling MCS (Modulation and Coding Scheme, modulation compile
Code scheme) and whether include the information such as the CQI (Channel Quality Indicator, channel quality indicator) of downlink.Eventually
After termination receives uplink authorization, in the 5th TTI, specified resource location carries out upstream data in the uplink authorization
Transmission.Away from the 9th TTI after issuing uplink authorization, base station carries out CRC (Cyclic to the data of UE uplink
Redundancy Check, cyclic redundancy check) verification, if verification is correct, feeding back ACK (Acknowledge, confirmation) gives UE
And terminate this time just to pass；If check errors, NACK (Not Acknowledge, do not confirm) is fed back to UE.When uplink is adopted
When being retransmitted with non-adaptive HARQ (Hybrid Automatic Repeat Request, hybrid automatic repeat-request), UE is received
After NACK, in the 13rd TTI, is not indicated by PDCCH, directly counted on identical resource location using identical MCS
According to re-transmission；It when uplink is retransmitted using adaptive HARQ, is then indicated by PDCCH, instruction UE carries out the re-transmission of data.
Fig. 2 is the flow chart of the restorative procedure of leak-detection control channel provided in an embodiment of the present invention.As shown in Fig. 2, this hair
Bright embodiment provides a kind of restorative procedure of leak-detection control channel, and the method is based on base station and describes, which comprises
21, PDCCH missing inspection detection is carried out to UE.
Herein, UE leak-detection control channel refers to that base station (such as eNodeB) issues control channel (for example, uplink is awarded to UE
Power) instruction, and the control channel instruction is not detected in the UE.
In embodiments of the present invention, can come to carry out PDCCH missing inspection detection to UE by various modes.
It is optionally, in one embodiment of the invention, described that PDCCH missing inspection detection is carried out to UE can include:
In CRC check mistake, related to pre-stored local pilot frequency sequence work to the signal in predetermined position (including from
Related and cross-correlation), correlation is obtained, wherein the predetermined position is specified in uplink authorization by base station；
When the correlation is less than the first threshold value, PDCCH described in the UE missing inspection is determined.
Wherein, in embodiments of the present invention, the pre-stored local pilot frequency sequence uses Zadoff- by the base station
Chu sequence is pre-generated.The correlation is identical with the value range of first threshold value, and specifically, correlation value is
[0,1], the first threshold value ∈ (0,1), wherein 1 expression is related to concrete implementation mode, the present invention is not limited it.Institute
Stating the first threshold value can artificially preset, and the setting of the first threshold value is related with the accuracy rate that PDCCH missing inspection detects.
It is optionally, in another embodiment of the present invention, described that PDCCH missing inspection detection is carried out to UE can include:
In CRC check mistake, by predetermined uplink RSRP (Reference Signal Received Power,
Reference Signal Received Power) it is compared with the second threshold value, while by predetermined upstream sinr (Signal to
Interference plus Noise Ratio, Signal to Interference plus Noise Ratio) it is compared with third threshold value；
It is less than second threshold value in the predetermined uplink RSRP, and the predetermined upstream sinr is small
When the third threshold value, PDCCH described in the UE missing inspection is determined.
In embodiments of the present invention, the value range of uplink RSRP are as follows: [- 200dBm, 30dBm]；The value of upstream sinr
Range are as follows: [- 30dB, 40dB]；Second threshold value ∈ [- 200dBm, 30dBm]；Third threshold value ∈ [- 30dB, 40dB].It is described
Second threshold value and the third threshold value can artificially be preset, the accuracy rate of the threshold value of setting and PDCCH missing inspection detection
It is related.
Further, in yet another embodiment of the present invention, can by use it is any above in a manner of UE is carried out
PDCCH missing inspection detects setting system critical condition.The system critical condition can indicate uplink transmission data for such as base station
Use 16QAM (Quadrature Amplitude Modulation, quadrature amplitude modulation) modulation system etc..Thus, it is optional
Ground, before carrying out PDCCH missing inspection detection to UE described in the step 21, the method may also include that
System critical condition is preset to the UE detection mode for carrying out PDCCH missing inspection detection；
In not up to system critical condition, PDCCH missing inspection detection is carried out to UE described in step 21 can include:
It is related to pre-stored local pilot frequency sequence work to the signal in predetermined position in CRC check mistake, obtain phase
Pass value, wherein the predetermined position is specified in uplink authorization by base station；
When the correlation is less than the first threshold value, PDCCH described in the UE missing inspection is determined；
When reaching system critical condition, PDCCH missing inspection detection is carried out to UE described in step 21 can include:
In CRC check mistake, predetermined uplink RSRP is compared with the second threshold value, while will be true in advance
Fixed upstream sinr is compared with third threshold value；
It is less than second threshold value in the predetermined uplink RSRP, and the predetermined upstream sinr is small
When the third threshold value, PDCCH described in the UE missing inspection is determined；
Wherein, the correlation, first threshold value, uplink RSRP, upstream sinr, the second threshold value, third thresholding
The specifically restriction of value is same as above, and particular content can refer to above description.
22, it after detecting PDCCH described in the UE missing inspection, is repaired with correcting strategy.
Wherein, the correcting strategy can include:
1, Xiang Suoshu UE re-issues uplink authorization instruction, indicates the UE using uplink adaptive HARQ (Hybrid
Automatic Repeat Request, hybrid automatic repeat-request) retransmit data.When base station is non-adaptive using uplink
HARQ is retransmitted, and PDCCH instruction can be issued by only just passing, and in UE leak-detection control channel PDCCH, UE, which can not be obtained, just passes data
Size, transmission location are transmitted, fails so as to cause the transmission of uplink retransmission data, influences uplink throughput.Plan is repaired using this
Slightly, in UE leak-detection control channel, base station re-issues uplink authorization instruction to UE, can subtract to avoid invalid uplink retransmission
The waste of few ascending resource, improves uplink throughput.
2, by the first TTI determine CRC check it is errors excepted (EE) enter NACK statistics in.By UE leak-detection control channel
Business data packet error code is rejected in the statistics of data packet error code caused by PDCCH, and base station can be improved to data packet MCS
The accuracy of selection improves the efficiency of transmission of base station.
3, the CQI received in the first TTI is abandoned, is not used in the judgement of down channel quality.UE missing inspection control letter
Road PDCCH will affect the accuracy of the CQI transmitted in this TTI, judges down channel quality using incorrect CQI, is unfavorable for
The selection of downlink data packet MCS influences downlink throughput.
4, the missing inspection statistic for the control channel that will test is in the error code of PDCCH.It can using this correcting strategy
To improve the accuracy of assessment control channel PDCCH transmission reliability.
Wherein, the first TTI is that base station determines TTI corresponding when the UE missing inspection PDCCH.
The base station when detecting UE missing inspection PDCCH, can with above-mentioned at least one of 1~4 correcting strategy into
Row is corresponding to be repaired.Preferably, the base station is repaired with above-mentioned four kinds of correcting strategies simultaneously.
The restorative procedure and base station apparatus of leak-detection control channel provided in an embodiment of the present invention, by carrying out PDCCH to UE
Missing inspection detection, and after determining PDCCH described in the UE missing inspection, it is accordingly repaired with correcting strategy, it so, can
Ascending resource waste is reduced, improves downlink throughput, and then improve LTE system performance.
It is for a better understanding of the present invention, next by taking several specific embodiments as an example below that invention is further explained.
It is also noted that it is set forth below for embodiment be a part of the embodiments of the present invention, those skilled in the art are by institute of the present invention
Content is stated, can be easy to expect other embodiments, they are within.
Fig. 3 is a kind of flow chart of the method for determining UE missing inspection PDCCH provided in an embodiment of the present invention.Referring to Fig. 3, this hair
The method for the determination UE missing inspection PDCCH that bright embodiment provides can include:
31, base station receives the PUSCH signal (that is: upstream data) that UE is sent.
Wherein, before step 31, base station can send PDCCH information to the UE, to indicate that uplink and downlink are transmitted
The service condition of resource.
32, the base station carries out CRC check to the PUSCH signal.
33, the base station is when CRC check is correct, determines that the UE does not have a missing inspection PDCCH, so feeding back ACK to UE simultaneously
Terminate this time just to pass.
34, in CRC check mistake, signal and pre-stored local pilot frequency sequence to predetermined position are made for the base station
Correlation obtains correlation, wherein the predetermined position is specified in uplink authorization by the base station.
In embodiments of the present invention, the pre-stored local pilot frequency sequence uses Zadoff-Chu sequence by the base station
Column are pre-generated.
The signal to predetermined position does related to pre-stored local pilot frequency sequence can include: to predetermined position
Signal and pre-stored local pilot frequency sequence do auto-correlation and cross-correlation.
35, the base station judges whether the correlation is less than first threshold value.
Wherein, first threshold value of correlation is identical with the value range of first threshold value, specifically, correlation
Value is [0,1], and the first threshold value ∈ (0,1), wherein 1 expression is related to concrete implementation mode, the present invention does not make it
It limits.First threshold value can artificially be preset, and the accuracy rate of setting and PDCCH the missing inspection detection of the first threshold value has
It closes.
36, the base station determines that the UE does not have missing inspection when the correlation is not less than first threshold value
PDCCH.In the case, the base station feedback ACK to UE and terminates this time just to pass.
37, the base station determines the UE missing inspection PDCCH when the correlation is less than first threshold value.
The base station can accordingly be repaired after determining UE missing inspection PDCCH with following at least one correcting strategy:
The base station re-issues uplink authorization instruction to the UE, indicates the UE using uplink adaptive HARQ again
Send data；
The base station by the first TTI determine CRC check it is errors excepted (EE) enter NACK statistics in；
The base station abandons the CQI received in the first TTI, is not used in the judgement of down channel quality；
The missing inspection statistic for the control channel that the base station will test is in the error code of PDCCH；
Wherein, the first TTI is that the base station determines TTI corresponding when the UE missing inspection PDCCH.
After above-mentioned correcting strategy, base station can be prevented the error diffusion of control channel to uplink and downlink data channel
In, influence of the control channel to data channel is reduced, promotes uplink and downlink throughput, while by the wrong closed loop of control channel.
Fig. 4 is the flow chart of another method for determining UE missing inspection PDCCH provided in an embodiment of the present invention.Referring to Fig. 4, originally
The method for the determination UE missing inspection PDCCH that inventive embodiments provide can include:
41, base station receives PUSCH signal (that is: the upper line number that UE is sent on the position of instruction UE transmission ascending resource
According to).
Wherein, before step 41, base station can send PDCCH information to the UE, to indicate that uplink and downlink are transmitted
The service condition of resource.
42, the base station carries out CRC check to the PUSCH signal.
43, the base station determines that the UE does not have missing inspection PDCCH when CRC check is correct, and feeding back ACK to UE and is tied
Beam this time just passes.
44, predetermined uplink RSRP is compared by the base station in CRC check mistake with the second threshold value,
Predetermined upstream sinr is compared with third threshold value simultaneously.
Wherein, the predetermined uplink RSRP and the predetermined upstream sinr can be based on leading by the base station
Frequency signal and determine.
In embodiments of the present invention, the value range of uplink RSRP are as follows: [- 200dBm, 30dBm]；The value of upstream sinr
Range are as follows: [- 30dB, 40dB]；Second threshold value ∈ [- 200dBm, 30dBm]；Third threshold value ∈ [- 30dB, 40dB].It is described
Second threshold value and the third threshold value can artificially be preset, the accuracy rate of the threshold value of setting and PDCCH missing inspection detection
It is related.
45, the base station the predetermined uplink RSRP not less than second threshold value or it is described in advance really
When fixed upstream sinr is not less than the third threshold value, determine that the UE does not have missing inspection PDCCH；Otherwise, step 46 is executed.
46, the base station is less than second threshold value in the predetermined uplink RSRP, and described predetermined
Upstream sinr be less than the third threshold value when, determine the UE missing inspection PDCCH.
The base station can carry out after determining PDCCH described in the UE missing inspection with following at least one correcting strategy
It is corresponding to repair:
The base station re-issues uplink authorization instruction to the UE, indicates the UE using uplink adaptive HARQ again
Send data；
The base station by the first TTI determine CRC check it is errors excepted (EE) enter NACK statistics in；
The base station abandons the CQI received in the first TTI, is not used in the judgement of down channel quality；
The missing inspection statistic for the control channel that the base station will test is in the error code of PDCCH；
Wherein, the first TTI is that the base station determines TTI corresponding when the UE missing inspection PDCCH.
After above-mentioned correcting strategy, base station can be prevented the error diffusion of control channel to uplink and downlink data channel
In, influence of the control channel to data channel is reduced, promotes uplink and downlink throughput, while by the wrong closed loop of control channel.
It is noted that determining that the method for UE missing inspection PDCCH can be independently operated, certainly also shown in Fig. 3 and Fig. 4
It may be used in combination.For example, in another embodiment of the present invention, carrying out PDCCH missing inspection detection to UE may also include that
In cyclic redundancy check check errors, signal and pre-stored local pilot frequency sequence to predetermined position make phase
It closes, obtains correlation, wherein the predetermined position is specified in uplink authorization by base station；
In cyclic redundancy check check errors, predetermined uplink RSRP is compared with the second threshold value, together
When predetermined upstream sinr is compared with third threshold value；
In the correlation less than the first threshold value, the predetermined uplink RSRP is less than second threshold value,
And the predetermined upstream sinr be less than the third threshold value when, determine PDCCH described in the UE missing inspection.
It simultaneously it is noted that can also be to using any method that system critical condition is arranged.For example, in this hair
In another bright embodiment, settable critical condition is determined when the not up to system critical condition using shown in Fig. 3
The method of missing inspection PDCCH, and when reaching the system critical condition, use the method that missing inspection PDCCH is determined shown in Fig. 4, institute
The system critical condition of stating can indicate that uplink transmission data uses 16QAM (Quadrature Amplitude for such as base station
Modulation, quadrature amplitude modulation) modulation system etc..
The restorative procedure of leak-detection control channel provided in an embodiment of the present invention, by identifying the abnormality of control channel,
And the abnormality of control channel is repaired, the error diffusion of control channel is reduced to the risk of data channel, is reduced
Ascending resource waste, while the throughput of LTE system uplink and downlink is improved, and then improve LTE system performance.
Corresponding with the restorative procedure of aforementioned leak-detection control channel provided in an embodiment of the present invention, the embodiment of the present invention also mentions
For a kind of base station apparatus 50, described device 50 includes detection unit 51 and reparation unit 52.Wherein:
Detection unit 51, for carrying out PDCCH missing inspection detection to UE；
Unit 52 is repaired, for after the detection unit detects PDCCH described in the UE missing inspection, with correcting strategy
It is repaired.
Wherein, the correcting strategy includes at least one of the following:
Uplink authorization instruction is re-issued to the UE, indicates that the UE retransmits number using uplink adaptive HARQ
According to；
By in the first TTI determine CRC check it is errors excepted (EE) enter NACK statistics in；
The CQI received in the first TTI is abandoned, the judgement of down channel quality is not used in；
The missing inspection statistic for the control channel that will test is in the error code of PDCCH；
Wherein, the first TTI is that base station determines TTI corresponding when the UE missing inspection PDCCH.
The restorative procedure and base station apparatus of leak-detection control channel provided in an embodiment of the present invention, by carrying out PDCCH to UE
Missing inspection detection, and after determining PDCCH described in the UE missing inspection, it is accordingly repaired with correcting strategy, it so, can
Ascending resource waste is reduced, improves downlink throughput, and then improve LTE system performance.
In embodiments of the present invention, detection unit 51 can determine UE missing inspection PDCCH by various different modes.Divide below
It is not illustrated.
Optionally, in one embodiment of the invention, the detection unit 51 can be used for:
It is related to pre-stored local pilot frequency sequence work to the signal in predetermined position in CRC check mistake, obtain phase
Pass value, wherein the predetermined position is specified in uplink authorization by base station；
When the correlation is less than the first threshold value, the UE missing inspection PDCCH is determined.
Optionally, in another embodiment of the present invention, the detection unit 51 can be used for:
In CRC check mistake, predetermined uplink RSRP is compared with the second threshold value, while will be true in advance
Fixed upstream sinr is compared with third threshold value；
It is less than second threshold value in the predetermined uplink RSRP, and the predetermined upstream sinr is small
When the third threshold value, the UE missing inspection PDCCH is determined.
Optionally, in yet another embodiment of the present invention, the detection unit 51 is used for: carrying out PDCCH leakage to UE
Before inspection detection, system critical condition is preset to the UE detection mode for carrying out PDCCH missing inspection detection；
In not up to critical condition, the detection unit 51 is also used to, in CRC check mistake, to predetermined position
Signal is related to pre-stored local pilot frequency sequence work, correlation is obtained, wherein the predetermined position is awarded by base station in uplink
It is specified in power；When the correlation is less than the first threshold value, PDCCH described in the UE missing inspection is determined；
When reaching system critical condition, the detection unit 51 is also used to, and in CRC check mistake, will be predefined
Uplink RSRP be compared with the second threshold value, while predetermined upstream sinr being compared with third threshold value；
It is less than second threshold value in the predetermined uplink RSRP, and the predetermined upstream sinr is small
When the third threshold value, PDCCH described in the UE missing inspection is determined；
Wherein, the correlation, first threshold value, uplink RSRP, upstream sinr, the second threshold value, third thresholding
The specific restriction of value is identical as the description in embodiment of the method above, and particular content can refer to retouching in embodiment of the method above
It states.
Optionally, in yet another embodiment of the present invention, the detection unit 51 is used for:
In cyclic redundancy check check errors, signal and pre-stored local pilot frequency sequence to predetermined position make phase
It closes, obtains correlation, wherein the predetermined position is specified in uplink authorization by base station；
In cyclic redundancy check check errors, predetermined uplink RSRP is compared with the second threshold value, together
When predetermined upstream sinr is compared with third threshold value；
In the correlation less than the first threshold value, the predetermined uplink RSRP is less than second threshold value,
And the predetermined upstream sinr be less than the third threshold value when, determine PDCCH described in the UE missing inspection.
Base station apparatus provided in an embodiment of the present invention, by identifying the abnormality of control channel, and to control channel
Abnormality is repaired, and is reduced the error diffusion of control channel to the risk of data channel, is reduced ascending resource waste,
The throughput of LTE system uplink and downlink is improved simultaneously, and then improves LTE system performance.
, it is noted that base station apparatus provided in an embodiment of the present invention and aforementioned missing inspection control provided in an embodiment of the present invention are believed
The restorative procedure in road is corresponding, since the restorative procedure of leak-detection control channel being described in detail above, therefore phase
Content is answered to can refer to above, details are not described herein.
It is worth noting that, included each unit is only drawn according to function logic in above-mentioned base station embodiment
Point, but be not limited to the above division, as long as corresponding functions can be realized；In addition, each functional unit is specific
Title is also only for convenience of distinguishing each other, the protection scope being not intended to restrict the invention.
Those of ordinary skill in the art will appreciate that implement the method for the above embodiments be can be with
Relevant hardware is instructed to complete by program, the program can store in a kind of computer readable storage medium, institute
Stating storage medium can be read-only memory, disk or CD etc..
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (16)
1. a kind of restorative procedure of leak-detection control channel, which is characterized in that the described method includes:
Base station sends physical downlink control channel PDCCH information to user equipment (UE), and the PDCCH information indicates uplink and downlink
The service condition of transfer resource；
The base station receives the Physical Uplink Shared Channel PUSCH signal that the UE is sent；
The base station carries out the PDCCH missing inspection to the UE and detects；
After detecting PDCCH described in the UE missing inspection, the base station is repaired with correcting strategy；
The base station carries out the PDCCH missing inspection detection to the UE
Signal and pre-stored local in the PUSCH signal cycle redundancy check CRC check mistake, to predetermined position
Pilot frequency sequence makees correlation, obtains correlation, wherein the predetermined position is specified in uplink authorization by the base station；In the phase
When pass value is less than the first threshold value, PDCCH described in the UE missing inspection is determined.
2. the method according to claim 1, wherein the pre-stored local pilot frequency sequence is by the base station
It is pre-generated using Zadoff-Chu sequence.
3. the method according to claim 1, wherein carrying out the PDCCH missing inspection to the UE in the base station
Before detection, the method also includes:
The base station determines that the modulation system that the base station indicates that the UE progress uplink transmission data uses is not up to system and faces
Boundary's condition, the system critical condition are 16 quadrature amplitude modulations (16QAM).
4. according to the method described in claim 3, it is characterized in that, if the base station determines that the base station indicates that the UE is carried out
The modulation system that uplink transmission data uses reaches the system critical condition, and the base station carries out the PDCCH to the UE
Missing inspection detection further include:
In the PUSCH signal CRC check mistake, predetermined uplink reference signals are received into power RSRP and second
Limit value is compared, while predetermined uplink signal being compared with interference plus noise ratio SINR with third threshold value；
It is less than second threshold value in the predetermined uplink RSRP, and the predetermined upstream sinr is less than institute
When stating third threshold value, PDCCH described in the UE missing inspection is determined, the base station is repaired with the correcting strategy.
5. method according to any of claims 1-4, which is characterized in that the correcting strategy include in following extremely
Few one kind:
Uplink authorization instruction is re-issued to the UE, indicates that the UE is sent out again using uplink hybrid automatic repeat request HARQ
Send data；
By in the first Transmission Time Interval TTI determine CRC check it is errors excepted (EE) enter do not confirm NACK statistics in；
The channel quality indicator CQI received in the first Transmission Time Interval TTI is abandoned, down channel quality is not used in
Judgement；
The missing inspection statistic for the control channel that will test is in the error code of PDCCH；
Wherein, the first TTI is that the base station determines TTI corresponding when PDCCH described in the UE missing inspection.
6. a kind of base station, which is characterized in that the base station includes:
Detection unit, for carrying out physical downlink control channel PDCCH missing inspection detection, the PDCCH information to user equipment (UE)
It is that the base station is sent to the UE and indicates the service condition of uplink and downlink transfer resource, the PDCCH information is to institute
It states UE and sends Physical Uplink Shared Channel PUSCH signal to the base station；
Unit is repaired, for being repaired after the detection unit detects PDCCH described in the UE missing inspection with correcting strategy
It is multiple；
The detection unit is used for: in the PUSCH signal cycle redundancy check CRC check mistake, to the letter in predetermined position
It is number related to pre-stored local pilot frequency sequence work, correlation is obtained, wherein the predetermined position is by the base station in uplink
It is specified in authorization；When the correlation is less than the first threshold value, PDCCH described in the UE missing inspection is determined.
7. base station according to claim 6, which is characterized in that the pre-stored local pilot frequency sequence is by the base station
It is pre-generated using Zadoff-Chu sequence.
8. base station according to claim 6, which is characterized in that the detection unit is also used to:
Before determining PDCCH described in the UE missing inspection, determine that the base station indicates that the UE carries out uplink transmission data use
Modulation system be not up to system critical condition, the system critical condition is 16 quadrature amplitude modulations (16QAM).
9. base station according to claim 8, which is characterized in that the detection unit is also used to:
If it is determined that the base station indicates that the UE carries out the modulation system that uplink transmission data uses and reaches the critical item of the system
Predetermined uplink reference signals are received power RSRP and second in the PUSCH signal CRC check mistake by part
Limit value is compared, while predetermined uplink signal being compared with interference plus noise ratio SINR with third threshold value；
It is less than second threshold value in the predetermined uplink RSRP, and the predetermined upstream sinr is less than institute
When stating third threshold value, PDCCH described in the UE missing inspection is determined.
10. the base station according to any one of claim 6-9, which is characterized in that the correcting strategy includes in following
It is at least one:
Uplink authorization instruction is re-issued to the UE, indicates that the UE is sent out again using uplink hybrid automatic repeat request HARQ
Send data；
By in the first Transmission Time Interval TTI determine CRC check it is errors excepted (EE) enter do not confirm NACK statistics in；
The channel quality indicator CQI received in the first Transmission Time Interval TTI is abandoned, down channel quality is not used in
Judgement；
The missing inspection statistic for the control channel that will test is in the error code of PDCCH；
Wherein, the first TTI is that the base station determines TTI corresponding when PDCCH described in the UE missing inspection.
11. a kind of restorative procedure of leak-detection control channel, which is characterized in that the described method includes:
Base station sends physical downlink control channel PDCCH information to user equipment (UE), and the PDCCH information indicates uplink and downlink
The service condition of transfer resource；
The base station receives the Physical Uplink Shared Channel PUSCH signal that the UE is sent；
The base station carries out the PDCCH missing inspection to the UE and detects, and the base station carries out the PDCCH missing inspection to the UE and examines
Survey includes: to receive predetermined uplink reference signals in the PUSCH signal cycle redundancy check CRC check mistake
Power RSRP is compared with the second threshold value, while by predetermined uplink signal and interference plus noise ratio SINR and third
Threshold value is compared；
It is less than second threshold value in the predetermined uplink RSRP, and the predetermined upstream sinr is less than institute
When stating third threshold value, PDCCH described in the UE missing inspection is determined；
After detecting PDCCH described in the UE missing inspection, the base station is repaired with correcting strategy.
12. according to the method for claim 11, which is characterized in that carry out the PDCCH leakage to the UE in the base station
Before inspection detection, the method also includes:
It is critical that the base station determines that the modulation system that the base station indicates that the UE progress uplink transmission data uses reaches system
Condition, the system critical condition are 16 quadrature amplitude modulations (16QAM).
13. the described in any item methods of 1-12 according to claim 1, which is characterized in that the correcting strategy includes in following
It is at least one:
Uplink authorization instruction is re-issued to the UE, indicates that the UE retransmits data using ascending HARQ；
By in the first Transmission Time Interval TTI determine CRC check it is errors excepted (EE) enter do not confirm NACK statistics in；
The channel quality indicator CQI received in the first Transmission Time Interval TTI is abandoned, down channel quality is not used in
Judgement；
The missing inspection statistic for the control channel that will test is in the error code of PDCCH；
Wherein, the first TTI is TTI corresponding when determining PDCCH described in the UE missing inspection.
14. a kind of base station, the base station include:
Detection unit, for carrying out physical downlink control channel PDCCH missing inspection detection, the PDCCH information to user equipment (UE)
It is that the base station is sent to the UE and indicates the service condition of uplink and downlink transfer resource, the PDCCH information is to institute
It states UE and sends Physical Uplink Shared Channel PUSCH signal to the base station；
The detection unit, is specifically used for: in the PUSCH signal cycle redundancy check CRC check mistake, will predefine
Uplink reference signals receive power RSRP be compared with the second threshold value, while by predetermined uplink signal with interfere
Plus noise ratio SINR is compared with third threshold value；It is less than second threshold value in the predetermined uplink RSRP,
And the predetermined upstream sinr be less than the third threshold value when, determine PDCCH described in the UE missing inspection；
Unit is repaired, for being repaired after the detection unit detects PDCCH described in the UE missing inspection with correcting strategy
It is multiple.
15. base station according to claim 14, which is characterized in that the detection unit is also used to:
Before carrying out the PDCCH missing inspection detection to the UE, determine that the base station indicates that the UE carries out uplink number
Reach system critical condition according to the modulation system used, the system critical condition is 16 quadrature amplitude modulations (16QAM).
16. base station described in any one of 4-15 according to claim 1, which is characterized in that the correcting strategy includes in following
At least one:
Uplink authorization instruction is re-issued to the UE, indicates that the UE retransmits data using ascending HARQ；
By in the first Transmission Time Interval TTI determine CRC check it is errors excepted (EE) enter do not confirm NACK statistics in；
The channel quality indicator CQI received in the first Transmission Time Interval TTI is abandoned, down channel quality is not used in
Judgement；
The missing inspection statistic for the control channel that will test is in the error code of PDCCH；
Wherein, the first TTI is that the base station determines TTI corresponding when PDCCH described in the UE missing inspection.
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| CN106130700B (en) * | 2016-08-09 | 2020-02-28 | 北京松果电子有限公司 | Method and device for detecting physical hybrid automatic repeat request (HARQ) indication and user equipment |
| CN110581755B (en) * | 2018-06-11 | 2022-07-26 | 大唐移动通信设备有限公司 | Downlink control channel detection method, terminal and network side equipment |
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