CN106788912A - Base station, user equipment and uplink data transmission method - Google Patents
Base station, user equipment and uplink data transmission method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 469
- 230000004913 activation Effects 0.000 claims description 38
- 101000741965 Homo sapiens Inactive tyrosine-protein kinase PRAG1 Proteins 0.000 claims description 31
- 102100038659 Inactive tyrosine-protein kinase PRAG1 Human genes 0.000 claims description 31
- 241000208340 Araliaceae Species 0.000 claims description 9
- 101100465000 Mus musculus Prag1 gene Proteins 0.000 claims description 9
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 9
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 9
- 235000008434 ginseng Nutrition 0.000 claims description 9
- 208000032370 Secondary transmission Diseases 0.000 claims description 3
- 238000004891 communication Methods 0.000 description 16
- 238000012546 transfer Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- 238000013475 authorization Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
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- 230000018109 developmental process Effects 0.000 description 1
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- 238000012163 sequencing technique Methods 0.000 description 1
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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
- H04L1/1607—Details of the supervisory signal
- H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
- H04L1/1678—Details of the supervisory signal the supervisory signal being transmitted together with control information where the control information is for timing, e.g. time stamps
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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
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
-
- 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
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1835—Buffer management
- H04L1/1845—Combining techniques, e.g. code combining
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
- H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
- H04W74/085—Random access procedures, e.g. with 4-step access with collision treatment collision avoidance
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Base station, user equipment and uplink data transmission method, methods described include：Blind check is carried out to default scheduling resource pond of exempting from；When the upstream data of user equipment re-transmission is detected, the reason for causing front and continued to transmit the upstream data decoding failure is determined based on the reference signal that the upstream data is used；The reason for according to causing front and continued to transmit the upstream data decoding failure, selection individually decodes or merges decoded mode and enters row decoding to this described upstream data of re-transmission accordingly；When to this re-transmission described upstream data decoding failure, based on the reason for causing upstream data decoding failure described in front and continued, this is generated to retransmit corresponding feedback information and send to the user equipment, to cause the user equipment under the instruction of the feedback information, from it is described exempt from scheduling resource pond in choose corresponding scheduling multiple access access-in resource of exempting from and retransmit the upstream data.Above-mentioned scheme can improve the reliability of transmitting uplink data, economize on resources, and improve system effectiveness.
Description
Technical field
The present invention relates to wireless communication technology, more particularly to a kind of base station, user equipment and uplink data transmission method.
Background technology
The 5th generation communication technology (5G) is the Main way of Technology of New Generation Mobile Communications development, is future new era information
The important component of infrastructure.The three big communication service scenes of 5G --- enhancing mobile broadband (eMBB), extensive Internet of Things
Net (massive MTC, mMTC), low time delay high reliable communication (Ultra-Reliable and Low Latency
Communication, URLLC), there is parcel data transmission service demand.Parcel data transfer has packet small and industry
The features such as being engaged in sudden strong, therefore industry extensive concern is obtained based on the transmission mechanism for exempting to dispatch (grant-free).
In based on the ascending transmission method for exempting from scheduling, when the user equipment in Idle state has data to send, its
It is its distribution ascending resource that need not send dispatch request and wait base station uplink scheduling authorization to base station, and user equipment can be direct
It is transmitted on scheduling resource is exempted from.According to the method for salary distribution for exempting from scheduling resource, exempting from scheduled transmission method can be divided into two types：
Type I exempts from scheduling resource for user equipment random selection carries out uplink；Type II carries out uplink for user equipment
Exempting from scheduling resource is pre-configured by base station or has predefined.
When using type I and Type II when exempting from scheduled transmission method and carrying out transmitting uplink data and fail, user equipment weight
New transmission identical upstream data, until reaching maximum transmission times or transmitting uplink data success.But, it is of the prior art
Exempt from scheduled transmission method causes poor reliability because there is resource contention.
The content of the invention
Present invention solves the technical problem that being the reliability for how improving transmitting uplink data.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of uplink data transmission method, including：Default
Exempt to randomly select in scheduling resource pond and exempt from scheduling multiple access access-in resource and send upstream data to base station；It is described randomly select exempt from adjust
Degree multiple access access-in resource includes the information of the reference signal in correspondence reference signal group, and the reference letter in the reference signal group
Number mark has default one-to-one relationship with the upload number of times of the upstream data；Judge in default feedback time window
Inside whether receive the corresponding feedback information of the upstream data of base station transmission；When receiving base in the feedback time window
Stand the feedback information that sends and when determining the upstream data decoding failure by the feedback information, according to current re-transmission
Number, under the instruction of received feedback information, from it is described exempt from scheduling multiple access access-in resource pond in choose and corresponding exempt from scheduling
Multiple access access-in resource retransmits the upstream data；Wherein, the selected reference signal exempted from scheduling resource and the random choosing
The reference signal for exempting to dispatch in multiple access access-in resource for taking has default corresponding relation so that the base station is based on the correspondence
The reason for relation recognition goes out the upload number of times and decoding failure of upstream data.
Alternatively, the selected scheduling resource of exempting from includes time-frequency physical resource and multiple access access-in resource, the multiple access
There is default incidence relation between other multiple access access-in resources and reference signal in access-in resource in addition to reference signal.
Alternatively, it is described according to current re-transmission number of times, under the instruction of received feedback information, scheduling is exempted from from described
Corresponding scheduling multiple access access-in resource of exempting from is chosen in multiple access access-in resource pond and retransmits the upstream data, including：Work as first transmission
The corresponding feedback information of the upstream data includes：Reference signal mark and NACK that upstream data described in first transmission is used
Information when, it is random in default re-transmission backoff time window to determine that one retransmits backoff time, and after identified re-transmission
Move back the time use from it is described exempt from scheduling multiple access access-in resource pond in choose corresponding scheduling multiple access access-in resource of exempting from and retransmit for the first time
The upstream data, the nack message is suitable to characterize upstream data decoding failure described in first transmission.
Alternatively, it is described according to current re-transmission number of times, under the instruction of received feedback information, scheduling is exempted from from described
Corresponding scheduling multiple access access-in resource of exempting from is chosen in multiple access access-in resource pond and retransmits the upstream data, including：When first time weight
Passing the corresponding feedback information of the upstream data includes：Retransmit for the first time reference signal mark that the upstream data used and
It is random in corresponding re-transmission backoff time window to determine that one retransmits backoff time during the information of NACK, and in identified weight
Pass backoff time from it is described exempt from scheduling multiple access access-in resource pond in randomly select and exempt from scheduling multiple access access-in resource and retransmit institute for the second time
State upstream data；Wherein, the nack message be suitable to characterize for the first time retransmit the upstream data decoding failure and first transmission
The reason for data decoding fails, and determine the reason for first transmission data decoding fails for channel quality.
Alternatively, it is described according to current re-transmission number of times, it is described under the instruction of received feedback information, exempt from from described
Corresponding scheduling multiple access access-in resource of exempting from is chosen in scheduling multiple access access-in resource pond and retransmits the upstream data, including：When first
The secondary corresponding feedback information of the upstream data that retransmits includes：Retransmit the reference signal mark that the upstream data is used for the first time
When knowing the information with COL, the upstream data is retransmitted using the data is activation mode made an appointment for the second time；Wherein, COL is suitable to
The reason for retransmitting the upstream data decoding failure and first transmission upstream data decoding failure for the first time is characterized, and is determined first
The reason for transmission data decoding fails is reference signal conflict.
Alternatively, it is described according to current re-transmission number of times, it is described under the instruction of received feedback information, exempt from from described
Corresponding scheduling multiple access access-in resource of exempting from is chosen in scheduling multiple access access-in resource pond and retransmits the upstream data, including：When first
The secondary corresponding feedback information of the upstream data that retransmits includes：Retransmit the reference signal mark that the upstream data is used for the first time
Know, COL and when retransmitting the configured information of data is activation mode of the upstream data for the second time, using with from the feedback information
In data is activation mode indicated by acquired configured information retransmit the upstream data for the second time.
Alternatively, the data is activation mode include it is following any one：Used in corresponding re-transmission backoff time window
The upstream data identical is retransmitted with first time to retransmit backoff time and use and upstream data identical described in first transmission
Redundancy versions retransmit the upstream data for the second time；From it is described exempt from scheduling multiple access access-in resource pond in randomly select and exempt to dispatch multiple access
Access-in resource retransmits the upstream data for the second time.
Present invention also offers another uplink data transmission method, including：To it is default exempt from scheduling resource pond carry out it is blind
Inspection；When the upstream data of user equipment re-transmission is detected, determine to cause based on the reference signal that the upstream data is used
The reason for front and continued transmits the upstream data decoding failure；According to the original for causing front and continued to transmit the upstream data decoding failure
Cause, the corresponding individually decoding of selection or merging decoded mode enter row decoding to this described upstream data of re-transmission；When to this
When retransmitting the upstream data decoding failure, based on the reason for causing front and continued to transmit the upstream data decoding failure, generation is originally
It is secondary to retransmit corresponding feedback information and send to the user equipment, to cause the user equipment in the finger of the feedback information
Under showing, from it is described exempt from scheduling resource pond in choose corresponding scheduling multiple access access-in resource of exempting from and retransmit the upstream data.
Alternatively, it is described to determine to cause front and continued to transmit the upper line number based on the reference signal that the upstream data is used
The reason for according to decoding failure, including：Based on the right between upload number of times of the corresponding reference signal mark of the upstream data
Should be related to, determine the information of the upload number of times of the upstream data；When the upstream data to retransmit for the first time, obtain right
The number of times for retransmitting corresponding reference signal for the first time is detected in the re-transmission backoff time window answered；Retreated when in corresponding re-transmission
Detected in time window and once retransmit corresponding reference signal for the first time, it is determined that causing upstream data described in first transmission to decode
The reason for failure is channel quality；Correspondence is retransmitted for the first time more than twice when being detected in corresponding re-transmission backoff time window
During reference signal, it is determined that the reason for causing upstream data decoding failure described in first transmission is reference signal conflict.
Alternatively, when it is determined that the upstream data to retransmit for the first time, it is described up that the basis causes front and continued to be transmitted
The reason for data decoding fails, the corresponding individually decoding of selection or merging decoded mode are entered to this described upstream data of re-transmission
Row decoding, including：When it is determined that the reason for upstream data decoding failure described in first transmission for channel quality when, by the upper line number
Merge decoding according to the upstream data with first transmission；When it is determined that being the reason for upstream data decoding failure described in first transmission
When reference signal conflicts, the upstream data is individually entered into row decoding.
Alternatively, when first time decoding failure is retransmitted, and determination causes upstream data decoding failure described in first transmission
The reason for for channel quality when, retransmit for the first time corresponding feedback information include for the first time retransmit the corresponding ginseng of the upstream data
The information of signal identification and NACK is examined, NACK is suitable to sign and retransmits the upstream data decoding failure and first transmission number for the first time
The reason for according to decoding failure, and determine the reason for first transmission data decoding fails for channel quality.
Alternatively, when first time retransmits decoding failure and determination causes the original of upstream data decoding failure described in first transmission
Because when reference signal conflicts, corresponding feedback information is retransmitted for the first time to be included retransmitting the corresponding ginseng of the upstream data for the first time
Examine the information of signal identification and COL, with cause the user equipment receive for the first time retransmit corresponding feedback information when, adopt
The upstream data is retransmitted for the second time with the data is activation mode made an appointment.
Alternatively, when first time retransmits decoding failure and determination causes the original of upstream data decoding failure described in first transmission
Because when reference signal conflicts, corresponding feedback information is retransmitted for the first time to be included retransmitting the corresponding ginseng of the upstream data for the first time
Examine signal identification, COL and retransmit the information of the data is activation mode of the upstream data for the second time.
Alternatively, the data is activation mode include it is following any one：Used and the in corresponding re-transmission back-off window
The upstream data identical is once retransmitted to retransmit backoff time and use and upstream data identical redundancy described in first transmission
Version retransmits the upstream data for the second time；From it is described exempt from scheduling multiple access access-in resource pond in randomly select and exempt from scheduling multiple access and access
Resource retransmits the upstream data for the second time.Alternatively, when it is determined that the upstream data is retransmitted for second, the basis is led
The reason for causing front and continued to transmit the upstream data decoding failure, selects corresponding individually decoding or merges decoded mode to this
Retransmit the upstream data and enter row decoding, including：When it is determined that being reference the reason for upstream data decoding failure described in first transmission
During signal conflict, the upstream data that the upstream data that second is retransmitted is retransmitted with first time merges decoding.
Alternatively, the merging is decoded as CC decodings or IR decodings.
The embodiment of the present invention additionally provides a kind of user equipment, including：Transmitting element, is suitable to exempt from scheduling resource default
Randomly selected in pond and exempt from scheduling multiple access access-in resource to base station transmission upstream data；The scheduling multiple access of exempting from for randomly selecting is accessed
Resource includes the information of the reference signal in correspondence reference signal group, and reference signal mark in the reference signal group with
The upload number of times of the upstream data has default one-to-one relationship；Judging unit, is suitable to judge in default feedback
Between whether the corresponding feedback information of the upstream data of base station transmission is received in window；Retransmission unit, is suitable to when described anti-
The feedback information of base station transmission is received in feedback time window and determines that the upstream data is decoded by the feedback information and lost
When losing, according to current re-transmission number of times, under the instruction of received feedback information, scheduling multiple access access-in resource pond is exempted from from described
Middle selection exempt from accordingly the scheduling multiple access access-in resource re-transmission upstream data；Wherein, the selected ginseng exempted from scheduling resource
Examine signal has default corresponding relation with the reference signal in scheduling multiple access access-in resource of exempting from for randomly selecting so that institute
Base station is stated based on the reason for the corresponding relation identifies the upload number of times and decoding failure of upstream data.
Alternatively, the selected scheduling resource of exempting from includes time-frequency physical resource and multiple access access-in resource, the multiple access
There is default incidence relation between other multiple access access-in resources and reference signal in access-in resource in addition to reference signal.
Alternatively, the retransmission unit, is suitable to include when the corresponding feedback information of upstream data described in first transmission：For the first time
When transmitting the information of reference signal mark that the upstream data used and NACK, in default re-transmission backoff time window
It is random to determine that one retransmits backoff time, and exempt from scheduling multiple access access-in resource pond using from described in identified re-transmission backoff time
The corresponding scheduling multiple access access-in resource of exempting from of middle selection retransmits the upstream data for the first time, and the nack message is suitable to characterize for the first time
Transmit the upstream data decoding failure.
Alternatively, the retransmission unit, being suitable to ought for the first time to retransmit the corresponding feedback information of the upstream data includes：The
When once retransmitting the information of reference signal mark that the upstream data used and NACK, in corresponding re-transmission backoff time window
Intraoral random determination one retransmits backoff time, and exempts from scheduling multiple access access-in resource pond from described in identified re-transmission backoff time
In randomly select exempt from scheduling multiple access access-in resource retransmit the upstream data for the second time；Wherein, the nack message is suitable to characterize
Retransmit the upstream data decoding failure for the first time and the reason for first transmission data decoding fails, and determine first transmission data
The reason for decoding failure is channel quality.
Alternatively, the retransmission unit, being suitable to ought for the first time to retransmit the corresponding feedback information of the upstream data includes：The
When once retransmitting the information of reference signal mark that the upstream data used and COL, using the data is activation made an appointment
Mode retransmits the upstream data for the second time；Wherein, COL be suitable to characterize for the first time retransmit the upstream data decoding failure and just
The reason for secondary transmission upstream data decoding failure, and determine that the reason for first transmission data decoding fails is reference signal conflict.
Alternatively, the retransmission unit, being suitable to ought for the first time to retransmit the corresponding feedback information of the upstream data includes：The
The data for once retransmitting reference signal mark, COL that the upstream data used and retransmitting the upstream data for the second time are sent out
When sending the configured information of mode, using with the data is activation mode indicated by acquired configured information from the feedback information
The upstream data is retransmitted for the second time.
Alternatively, the retransmission unit, is suitable for use with including that following any one described data is activation mode is retransmitted for second
The upstream data：Used in corresponding re-transmission backoff time window and retransmit the upstream data identical re-transmission with first time
Backoff time and using retransmitting the upstream data for the second time with upstream data identical redundancy versions described in first transmission；From institute
State to exempt to randomly select in scheduling multiple access access-in resource pond and exempt from scheduling multiple access access-in resource and retransmit the upstream data for the second time.
The embodiment of the present invention additionally provides a kind of base station, including：Blind check unit, is suitable to enter default scheduling resource pond of exempting from
Row blind check；Determining unit, is suitable to, when the upstream data of user equipment re-transmission is detected, be used based on the upstream data
Reference signal determines the reason for causing front and continued to transmit the upstream data decoding failure；Decoding unit, is suitable to according to causing
The reason for front and continued transmission upstream data decoding failure, selection is corresponding individually to be decoded or merges decoded mode to this re-transmission institute
State upstream data and enter row decoding；Feedback unit, is suitable to when to this re-transmission described upstream data decoding failure, before causing
It is continuous the reason for retransmit the upstream data decoding failure, generate this and retransmit corresponding feedback information and send to the user and set
It is standby, to cause the user equipment under the instruction of the feedback information, from it is described exempt from scheduling resource pond in choose and exempt from accordingly
Scheduling multiple access access-in resource retransmits the upstream data.
Alternatively, the determining unit, is suitable to based on the corresponding reference signal mark of the upstream data and upload time
Corresponding relation between number, determines the information of the upload number of times of the upstream data；When the upstream data is re-transmission for the first time
When, obtain the number of times for being detected in corresponding re-transmission backoff time window and retransmitting corresponding reference signal for the first time；When right
Detected in the re-transmission backoff time window answered and once retransmit corresponding reference signal for the first time, it is determined that causing the upstream data
The reason for decoding failure is channel quality；Retransmitted for the first time more than twice when being detected in corresponding re-transmission backoff time window
During correspondence reference signal, it is determined that the reason for causing upstream data decoding failure described in first transmission is reference signal conflict.
Alternatively, the decoding unit, is suitable to when the determination upstream data to retransmit for the first time, and passed when determination is first
When the reason for defeated upstream data decoding failure is channel quality, by the upstream data and the described upper line number of first transmission
Decoded according to merging；When it is determined that conflicting for reference signal the reason for upstream data decoding failure described in first transmission, on described
Row data individually enter row decoding.
Alternatively, the feedback unit, is suitable to when the reason for determination causes the upstream data decoding failure be channel matter
During amount, the first time for being generated retransmits corresponding feedback information to be included retransmitting the corresponding reference signal of the upstream data for the first time
The information of mark and NACK, NACK is suitable to sign and retransmits the upstream data decoding failure and first transmission data decoding for the first time
The reason for failure, and determine the reason for first transmission data decoding fails for channel quality.
Alternatively, the feedback unit, is suitable to when determination retransmits decoding failure for the first time and causes on described in first transmission
The reason for row data decoding failure for reference signal conflict when, first time for being generated retransmits corresponding feedback information includes first
The secondary information for retransmitting the corresponding reference signal mark of the upstream data and COL, to cause that the user equipment is receiving the
When once retransmitting corresponding feedback information, the upstream data is retransmitted using the data is activation mode made an appointment for the second time.
Alternatively, the feedback unit, is suitable to cause on described in first transmission when first time retransmits decoding failure and determination
The reason for row data decoding failure for reference signal conflict when, first time for being generated retransmits corresponding feedback information includes first
It is secondary to retransmit the corresponding reference signal mark of the upstream data, COL and retransmit the data sender of the upstream data for the second time
The information of formula.
Alternatively, the data is activation mode include it is following any one：Used and the in corresponding re-transmission back-off window
The upstream data identical is once retransmitted to retransmit backoff time and use and upstream data identical redundancy described in first transmission
Version retransmits the upstream data for the second time；From it is described exempt from scheduling multiple access access-in resource pond in randomly select and exempt from scheduling multiple access and access
Resource retransmits the upstream data for the second time.
Alternatively, the decoding unit, is suitable to when the determination upstream data is for second retransmits and determines first transmission
The reason for upstream data decoding failure for reference signal conflict when, the upstream data that second is retransmitted with for the first time
The upstream data for retransmitting merges decoding.
Alternatively, the decoding unit, is suitable for use with CC decodings or IR decodings merge decoding.
Compared with prior art, the technical scheme of the embodiment of the present invention has the advantages that：
Above-mentioned scheme, base station can be entered in user equipment using the scheduling multiple access access-in resource of exempting from exempting from scheduling resource pond
When row transmitting uplink data fails, by identifying the reason for causing front and continued transmission transmitting uplink data to fail, determine to this
Retransmit the upstream data mode that individually decoding or merging are decoded and enter row decoding, the reliability of transmitting uplink data can be improved,
And then the number of retransmissions of upstream data can be reduced, economize on resources.
Further, base station is indicated to user equipment by sending reference signal collision feedback, and notifying user equipment is adopted
The method retransmitted with backoff time identical with front and continued re-transmission so that base station can determine that each user sets according to backoff time
Standby corresponding front and continued is retransmitted, and is accordingly retransmitted data and done with front and continued and merges decoding, can be obtained to merge and is decoded gain, and improves number
According to the reliability of transmission.
Further, base station is indicated to user equipment by sending reference signal collision feedback, and notifying user equipment is adopted
With the method with first transmission upstream data identical redundancy versions (RV) so that base station can use soft merging (Chase
Combining, CC) or incremental redundancy (Incremental Redundancy, IR) two ways upstream data is merged
Decoding, can improve the flexibility for merging decoding.
Brief description of the drawings
Fig. 1 is a kind of flow chart of uplink data transmission method of the embodiment of the present invention；
Fig. 2 is the flow chart of another uplink data transmission method of the embodiment of the present invention；
Fig. 3 is the flow chart of another uplink data transmission method of the embodiment of the present invention；
Fig. 4 is a kind of structural representation of user equipment of the embodiment of the present invention；
Fig. 5 is a kind of structural representation of base station of the embodiment of the present invention.
Specific embodiment
In the prior art, the 5th generation communication technology (5G) communication three major businesses scene-enhancing mobile broadband (eMBB), greatly
Scale Internet of Things (massive MTC, mMTC), low time delay high reliable communication (Ultra-Reliable and Low Latency
Communication, URLLC), there is parcel data transmission service demand.Parcel data transfer has packet small and industry
The sudden feature such as strong of business, therefore industry extensive concern is obtained based on the transmission mechanism for exempting to dispatch (grant-free).
In based on the ascending transmission method for exempting from scheduling, when the user equipment in Idle state has data to send, its
It is its distribution ascending resource that need not send dispatch request and wait base station uplink scheduling authorization to base station, and user equipment can be direct
It is transmitted on scheduling resource is exempted from.According to the method for salary distribution for exempting from scheduling resource, exempting from scheduled transmission method can be divided into two types：
Type I exempts from scheduling resource for user equipment random selection carries out uplink；Type II carries out uplink for user equipment
Exempting from scheduling resource is pre-configured by base station or has predefined.
Scheduled transmission modes of exempting from for type I, a class prior art is the user equipment when transmitting uplink data fails
Again identical data is transmitted, untill reaching transmission maximum times or transmitting uplink data successfully.Base station is at the beginning of user equipment
Begin to transmit not done with the multiple identical data for retransmitting and merge decoding, have lost merging decoding gain.Also, it is upper when having in system
When the number of user equipment of row transmission demand is larger, the number of retransmissions needed for reaching data transfer success will increase, and can be
In later retransmission increase reference signal collision probability, be easily caused when reaching maximum transmission times cannot still realize data transfer into
Work(, namely exist that transmission reliability is poor, the problem of waste of resource.
Scheduled transmission modes of exempting from for type I, another kind of prior art is the Yong Hushe when transmitting uplink data fails
Standby is also to transmit identical data again, untill reaching transmission maximum times or transmitting uplink data successfully.Unlike, base
Standing-meeting does merging decoding to user equipment initial transmission with the multiple identical upstream data for retransmitting.But, base station nonrecognition causes
The reason for transmitting uplink data fails, when data transmission fails are when being caused by bad channel quality, by initial transmission and re-transmission
Upstream data is HARQ and merges decoding, can bring decoding gain, improves data transmission credibility.However, working as data transfer
When being unsuccessfully that the reference signal conflict used by multiple user equipmenies causes, the reference signal of the initial transmission that base station receives
It is the mixed signal from multiple user equipmenies, and estimates that what is obtained is the superposition letter of multiple user equipmenies according to reference signal
Road, causes Initial Decoding inaccurate, so as to when decoding is merged with later retransmission, be difficult to realize decoding success, causes to retransmit money
Source wastes, and system effectiveness is low, equally there is also the problem of transmission reliability difference, the problem of waste of resource.
Above-mentioned to solve the problems, such as, the embodiment of the present invention exempts from scheduling by user equipment using in exempting from scheduling resource pond
When multiple access access-in resource carries out transmitting uplink data failure, base station passes through to identify the reason for causing transmitting uplink data to fail,
The mode for determining decoding independent to upstream data or merging decoding enters row decoding, can improve the reliability of transmitting uplink data
Property, and base station is indicated to user equipment by sending reference signal collision feedback, and notifying user equipment is used and retransmitted with front and continued
The method that identical backoff time is retransmitted so that base station can determine the corresponding front and continued of each user equipment according to backoff time
Retransmit, and accordingly retransmit data with front and continued and do and merges decoding, can obtain to merge and decode gain, and improve the reliability of data transfer
Property.And then the number of retransmissions of upstream data can be reduced, economize on resources.
It is understandable to enable above-mentioned purpose of the invention, feature and beneficial effect to become apparent, below in conjunction with the accompanying drawings to this
The specific embodiment of invention is described in detail.
Fig. 1 shows a kind of schematic diagram of the uplink data transmission method in the embodiment of the present invention.Referring to Fig. 1, the present invention
Transmitting uplink data in embodiment can include the steps：
Step S101：It is default exempt from scheduling resource pond in randomly select exempt from scheduling multiple access access-in resource to base station send on
Row data；
In specific implementation, default scheduling resource pond of exempting from is base station and user equipment for communication system is pre-configured with
It is known.
Step S102：Judge that the upstream data that whether base station transmission is received in default feedback time window is corresponding
Feedback information；
Step S103：When the corresponding feedback of the upstream data that base station transmission is received in the feedback time window
During information, according to number of retransmissions, under the instruction of received feedback information, scheduling multiple access access-in resource pond is exempted from from described
Choose corresponding scheduling multiple access access-in resource of exempting from and retransmit the upstream data.
In specific implementation, the scheduling multiple access access-in resource of exempting from for randomly selecting includes the ginseng in correspondence reference signal group
Examine having with the upload number of times of the upstream data for the reference signal mark in the information of signal, and the reference signal group pre-
If one-to-one relationship, namely user equipment is when the transmission of identical upstream data is carried out, the reference signal for using every time it
Between be respectively provided with corresponding relation, to allow that base station determines the upstream data of user device transmissions according to the reference signal for being used
Number of times, and then can when needed merge decoding.Wherein, exempt from dispatch multiple access access-in resource in reference signal can be
Demodulated reference signal, or lead code can also be included.
Corresponding with the uplink data transmission method shown in Fig. 1, Fig. 2 shows another up in the embodiment of the present invention
The schematic diagram of data transmission method.Referring to Fig. 2, the transmitting uplink data in the embodiment of the present invention can include the steps：
Step S201：Blind check is carried out to default scheduling resource pond of exempting from.
Step S202：When the upstream data of user equipment re-transmission is detected, based on the ginseng that the upstream data is used
Examine signal and determine the reason for causing front and continued to transmit the upstream data decoding failure.
Step S203：The reason for according to causing front and continued to transmit the upstream data decoding failure, selection is individually translated accordingly
Code or merging decoded mode enter row decoding to this described upstream data of re-transmission.
Step S204：It is described up based on causing front and continued to be transmitted when to this re-transmission described upstream data decoding failure
The reason for data decoding fails, generates this and retransmits corresponding feedback information and send to the user equipment, described to cause
User equipment under the instruction of the feedback information, from it is described exempt from scheduling resource pond in choose corresponding scheduling multiple access of exempting from and access money
Source retransmits the upstream data.
Above-mentioned scheme, base station can be entered in user equipment using the scheduling multiple access access-in resource of exempting from exempting from scheduling resource pond
When row transmitting uplink data fails, by identifying the reason for causing transmitting uplink data to fail, determine independent to upstream data
The mode of decoding or merging decoding enters row decoding, can improve the reliability of transmitting uplink data, and base station is joined by sending
Examine signal conflict feedback and be indicated to user equipment, and notifying user equipment is retransmitted using backoff time identical with front and continued re-transmission
Method so that base station can determine that the corresponding front and continued of each user equipment is retransmitted according to backoff time, and accordingly with front and continued weight
Pass data and do merging decoding, merging decoding gain can be obtained, and improve the reliability of data transfer.And then can reduce up
The number of retransmissions of data, economizes on resources.
To make the present invention clearer, the uplink data transmission method in the embodiment of the present invention is done below in conjunction with Fig. 3
Further details of introduction.
Fig. 3 shows user equipment corresponding flow chart in initial upload upstream data in the embodiment of the present invention.Referring to
Fig. 3, the uplink data transmission method in the embodiment of the present invention is suitable to user equipment and sends data to base station, can specifically use
The steps is realized：
Step S301：The user equipment it is default exempt from scheduling resource pond in randomly select exempt from dispatch multiple access access-in resource
Upstream data is sent to base station.
In specific implementation, exempt from scheduling resource pond and be pre-configured with by communication system.Base station and user equipment know to lead in advance
What letter system was configured exempts from the information in scheduling resource pond.When needing to carry out transmitting uplink data, the user in Idle state sets
It is standby can directly 5G communication systems configured exempt from scheduling resource pond in randomly select one or more and exempt from scheduling multiple access access
Resource transmission upstream data, namely carry out first transmission with base station.
In specific implementation, the scheduling multiple access access-in resource of exempting from exempted from scheduling resource pond includes time-frequency physical resource and multiple access
Access-in resource.Wherein, multiple access access-in resource is 5G non-orthogonal multiple access-in resources, and it can include code book, code word, sequence, friendship
Knit at least one of device, the mapping method of interleaver, reference signal, spatial domain resource and power domain resource.
In an embodiment of the present invention, for the ease of base station when the upstream data of user equipment transmission is received, to institute
The number of transmissions of the upstream data of reception is determined, and and then in decoding failure, the reason for identify decoding failure, will exempt from
Demodulated reference signal carries out quadrature divide for N number of reference signal subset in scheduling resource pond, and N is the default identical of communication system
The number of transmissions threshold value of upstream data.
In N number of subset for obtaining of segmentation, the reference signal that n-th (1≤n≤(N-1)) height is concentrated with (n+1)th
Reference signal correspondence in subset, it is hereby achieved that corresponding multiple reference signal groups.
For example, the jth that the 1st son is concentrated1Individual reference signalJth is concentrated with the 2nd son2Individual reference signalIt is right
Should, and jth2Individual reference signalJth is concentrated with the 3rd son3Individual reference signalThe rest may be inferred, so that can for correspondence ...
To obtain a reference signal groupReference signal in a resulting reference signal group
First transmission will be respectively used to and (N-1) secondary re-transmission upstream data will be used.
In specific implementation, with reference to letter between reference signal subset that first transmission and (N-1) secondary re-transmission are used and subset
Number corresponding relation in advance for base station and user equipment know.Wherein, user equipment can be in first transmission, random choosing
Taking a reference signal group, and choose the corresponding reference signal of first transmission carries out the first transmission of upstream data；When being retransmitted
When, user equipment is carried out mutually ibid using reference signal corresponding with number of retransmissions in the reference signal group selected by first transmission
The re-transmission of row data.Base station it is default exempt from scheduling resource pond in by blind check detect user equipment send upstream data
When, then the information of the number of transmissions of the upstream data that can be received by the determination of corresponding reference signal, and and then recognize
The reason for going out upstream data decoding failure.
Step S302：The base station carries out blind check to the scheduling resource pond of exempting from.
In specific implementation, when transmitting uplink data is carried out, the uplink transmission resource that user equipment is used is from exempting from
What is randomly selected in scheduling resource pond exempts from scheduling multiple access access-in resource, and base station is prior and is unaware of which user equipment will be used
Which exempts from scheduling multiple access access-in resource sends upstream data.Therefore, base station needs what is be pre-configured with to communication system to exempt from scheduling money
Source pond carries out blind check, to receive the upstream data of user equipment transmission in time.
Step S303：When the base station does not receive the upstream data that the user equipment sends, not send feedback information.
In specific implementation, when the upstream data of user equipment is not detected by by blind check, base station will have no way of knowing use
Family have sent upstream data, so as to also send the feedback information of upstream data without normal direction user equipment.
Step S304：The base station detect user equipment transmission upstream data and it is successfully decoded when, set to user
Preparation send the feedback information of the reference signal mark, ACK and the customer equipment identification that are used including first transmission.
In specific implementation, when the upstream data that user equipment sends is detected by blind check, base station can be by passing
The reference signal that defeated upstream data is used determines the number of times of received upstream data.When it is determined that the upstream data for being received is
First transmission and it is successfully decoded when, base station can generate reference signal mark, ACK and the user used including first transmission and set
The feedback information of standby mark is simultaneously sent to user equipment.User equipment is receiving the reference signal that is used including first transmission
During the feedback information of mark, ACK and customer equipment identification, can determine that the feedback information is to itself by reference to signal identification
The feedback of first transmission；Can confirm that upstream data is successfully decoded by ACK；Decoding can be determined by the information of ID
Successful upstream data is the upstream data of itself.
Step S305：The base station sets when the upstream data and decoding failure of user equipment transmission is detected to user
Preparation send the feedback information of the reference signal mark and NACK used including first transmission.
In specific implementation, when the upstream data that user equipment sends is detected by blind check, base station can be by passing
The reference signal that defeated upstream data is used determines the number of times of received upstream data.When it is determined that the upstream data for being received is
When first transmission and decoding failure, base station can generate the feedback of the reference signal mark and NACK used including first transmission
Information is simultaneously sent to user equipment.User equipment is receiving the reference signal mark that is used including first transmission and NACK
Feedback information, the reference signal used by first transmission is identified and can determine that the feedback information is to itself first transmission
Feedback；NACK can confirm that itself first transmission upstream data decoding failure.
Step S306：The user equipment does not receive the feedback letter that the base station sends in the feedback time window
During breath, again from it is described exempt from scheduling resource pond in randomly select and exempt from scheduling resource and send the upstream data to base station.
In specific implementation, when the first biography that base station transmission is not received in the corresponding feedback time window of first transmission
During defeated corresponding feedback information, user equipment can determine that base station does not receive the upstream data of first transmission.Now, Yong Hushe
It is standby identical upstream data to be performed since step S301.
Step S307：The user equipment receives base station includes reference signal mark, ACK and use that first transmission is used
During the feedback information of family device identification, determine that base station has correctly received the upstream data of first transmission and successfully decoded.
In specific implementation, when user equipment receives reference signal mark, ACK and the use used including first transmission
During the feedback information of family device identification, it may be determined that base station receives the upstream data of first transmission and successfully decoded.Work as needs
When carrying out subsequent data transmission, user equipment can from communication system configuration exempt from scheduling resource pond in randomly select exempt from scheduling money
Source is transmitted with proceeding subsequent upstream data, namely is performed since step S301.
Step S308：The reference signal that the user equipment receives base station and includes that first transmission is used is identified with NACK's
During feedback information, randomly select a backoff time and carry out first time re-transmission in corresponding re-transmission backoff time window.
In specific implementation, when the feedback information for receiving the reference signal mark and NACK used including first transmission
When, user equipment can determine that base station receives the upstream data of first transmission and the upstream data to first transmission is decoded and lost
Lose.Now, user equipment can choose corresponding scheduling multiple access access-in resource of exempting to first transmission from scheduling resource pond is exempted from
Upstream data carries out first time re-transmission.
When carrying out retransmitting the upstream data for the first time, user equipment is random in corresponding re-transmission backoff time window
Choosing one and retransmit backoff time, and corresponding scheduling multiple access access-in resource of exempting from is chosen from scheduling resource pond is exempted from carries out weight for the first time
Pass the upstream data.
Wherein, retransmit for the first time on described in the selected reference signal and first transmission exempted from scheduling multiple access access-in resource
The reference signal that what row data were randomly selected exempt from dispatches in multiple access access-in resource has default corresponding relation, namely the ginseng for using
Examine what signal was to determine.Simultaneously as other multiple access in reference signal and multiple access access-in resource in addition to reference signal are accessed
Resource has default incidence relation, and when reference signal determines, other multiple access in the multiple access access-in resource for being used are accessed
Resource is also to determine, i.e., when reference signal determines, the corresponding multiple access access-in resource for exempting to dispatch in multiple access access-in resource also will be true
It is fixed.And for the first time retransmit used exempt from dispatch multiple access access-in resource in frequency domain resource then can in scheduling resource pond is exempted from
Machine selection or the frequency domain resource used with first transmission have default incidence relation.
By this kind of mode, when multiple user equipmenies transmit data using identical reference signal to base station, due to not
It is random determination that what same user equipment was used when carrying out and retransmitting for the first time retransmits backoff time, thus in same re-transmission
The possibility that backoff time retransmits the upstream data for the first time is relatively low, and can be retransmitted by first time just can be by using identical
The user equipment of reference signal transmission make a distinction.
Step S309：The base station is retransmitted in corresponding re-transmission backoff time window in first time exempts from scheduling resource to described
Pond carries out blind check.
In specific implementation, base station can retransmit corresponding re-transmission backoff time window to user equipment first in first time
The upstream data of secondary re-transmission is detected, to obtain the upstream data that user equipment is retransmitted for the first time in time.Wherein, it is corresponding
Backoff time window is retransmitted, being user equipment is receiving the feedback information of base station transmission to user equipment according to transmitted by base station
The instruction of feedback information retransmit maximum transmission time interval between upstream data, its duration can enter according to the actual needs
Row is set, and the present invention is not limited herein.
Step S310：When detect user equipment for the first time retransmit upstream data and it is successfully decoded when, the base station to
The user equipment sends the feedback letter of the reference signal mark, ACK and customer equipment identification that include retransmitting used for the first time
Breath.
In specific implementation, scheduling is exempted from base station by corresponding re-transmission backoff time window to communication system configuration
Resource pool carries out blind check, with the upstream data that the first time for getting user equipment transmission retransmits, and by user equipment first
It is secondary to retransmit the upstream data that used reference signal determine that received upstream data is user equipment re-transmission for the first time.
When the upstream data that user equipment is retransmitted for the first time is received, what base station can retransmit to first time for being received
Upstream data enter row decoding and it is successfully decoded when, this upstream data of user equipment is uploaded successfully.Now, base station can generate
Retransmit used reference signal mark, the feedback information of ACK and customer equipment identification and send to user including first time and set
It is standby, so that obtaining user equipment knows that the upstream data for retransmitting for the first time uploads successful information.
Step S311：When the user equipment upstream data of re-transmission for the first time is not detected by, the base station does not send correspondence
Feedback information.
In specific implementation, when the upstream data that user equipment is retransmitted for the first time is not detected by by blind check, base station will
Have no way of knowing that user have sent upstream data, so that it is corresponding anti-also to send re-transmission upstream data for the first time without normal direction user equipment
Feedforward information.
Step S312：The base station is when the upstream data of the re-transmission of user equipment first is detected, it is determined that causing first biography
The reason for defeated upstream data decoding failure.
In specific implementation, base station retransmits blind check in corresponding re-transmission backoff time window and is sent out to user equipment in first time
The upstream data for sending, and determine that received upstream data is user equipment the by the reference signal that is used user equipment
During the upstream data for once retransmitting, base station can first determine the upper line number according to first time re-transmission determination causes first transmission
The reason for according to decoding failure.
In an embodiment of the present invention, base station can be examined by being retransmitted to first time in corresponding re-transmission backoff time window
The number of times that user equipment retransmits the corresponding reference signal of upstream data for the first time is measured, determines that upstream data is translated described in first transmission
The reason for code failure.
Specifically, correspondence is retransmitted for the first time when base station retransmits to be detected in corresponding re-transmission backoff time window in first time
Reference signal subset in certain reference signal number of times be one time when, it may be determined that upstream data described in first transmission is decoded
The reason for failure, causes for channel quality；Weight for the first time is detected when being retransmitted in corresponding re-transmission backoff time window in first time
The number of times for passing certain reference signal corresponding reference signal subset Nei is that base station can be determined to first transmission institute when more than twice
Upstream data decoding failure is stated to be caused by reference signal conflict.
Step S313：The base station is it is determined that be channel quality the reason for upstream data decoding failure described in first transmission
When, the upstream data that first time is retransmitted merges decoding with the upstream data of first transmission.
In specific implementation, when it is determined that the reason for upstream data decoding failure described in first transmission caused by channel quality
When, base station can be according to the corresponding relation between reference signal, it is determined that first biography corresponding with the upstream data that first time retransmits
Defeated upstream data, and the upstream data that first time is retransmitted merges decoding with the upstream data of first transmission, to obtain
Merge decoding gain, such that it is able to reduce the number of retransmissions of the identical upstream data of user equipment, reduce the resource between user equipment
Collision, such that it is able to improve the reliability of data transfer, and then with save resources, can improve the efficiency of data transfer.
Step S314：The upstream data that first time retransmits is merged and translated by the base station with the upstream data of first transmission
During code failure, it is anti-with NACK that base station generation includes retransmitting for the first time the reference signal mark that the upstream data used
Feedforward information is simultaneously sent to the user equipment.
In specific implementation, the upstream data that first time retransmits is merged and translated by base station with the upstream data of first transmission
Code failure, and when the reason for determining upstream data decoding failure described in first transmission for caused by channel quality, base station can give birth to
Into setting including retransmitting the feedback information of the upstream data corresponding reference signal mark and NACK for the first time and send to user
It is standby so that user equipment can be according to transmitted by base station feedback information determine base station receive for the first time retransmit upper line number
According to but decoding failure information, carry out second re-transmission such that it is able to instruction user equipment.
Step S315：The base station is it is determined that be reference signal punching the reason for upstream data decoding failure described in first transmission
When prominent, the upstream data that first time retransmits individually is decoded.
In specific implementation, it is determined that being reference signal conflict institute the reason for upstream data decoding failure described in first transmission
When causing, it may be determined that multiple user equipmenies have used the reference signal in same reference signal group when first transmission is carried out.
Now, base station only can individually be decoded the upstream data that first time retransmits.
Step S316：When the upstream data that first time retransmits is carried out independent decoding failure by the base station, the base station life
Into including retransmitting the feedback information of the corresponding reference signal mark of the upstream data and COL for the first time and sending to the user
Equipment.
In an embodiment of the present invention, the upstream data that first time retransmits is carried out independent decoding failure by base station, and is determined
When conflicting for reference signal the reason for upstream data decoding failure described in first transmission, base station can generate and be retransmitted including first time
The feedback information of the corresponding reference signal mark of the upstream data and COL is simultaneously sent to user equipment, so as to obtain user equipment
Feedback information that can be according to transmitted by base station, determines that base station receives the letter of the upstream data but decoding failure for retransmitting for the first time
Breath, second re-transmission is carried out such that it is able to instruction user equipment using the data is activation mode made an appointment.
In an embodiment of the present invention, it is determined that being reference signal the reason for upstream data decoding failure described in first transmission
During conflict, base station can generate and retransmit the corresponding reference signal mark of the upstream data, COL and second weight including first time
The feedback information of the data is activation mode of the upstream data is passed, and is sent to user equipment, so that obtain user equipment can be with root
According to the feedback information transmitted by base station, determine that base station receives the upstream data but decoding failure for retransmitting for the first time, and use institute
The data is activation mode indicated in the feedback information of reception retransmits upstream data for the second time.
In an embodiment of the present invention, user equipment carries out the data mode that second re-transmission used includes following two
Kind：
One is：User equipment is being retransmitted in corresponding re-transmission backoff time window for the second time, is chosen and is retransmitted for the first time
Identical retransmits backoff time, and is retransmitted for second to base station using with first transmission upstream data identical redundancy versions (RV)
The upstream data.By this mode, base station can will be using same reference by retransmitting the sequencing of backoff time
Multiple user equipmenies of signal are distinguished, it is possible to determine to be used using the multiple of same reference signal according to backoff time is retransmitted
Family equipment each first retransmit upstream data.Simultaneously as the redundancy versions and first transmission that are used when retransmitting for second
Upstream data is identical, and can make up first transmission causes invalid redundancy versions because there is reference signal conflict, so as to improve
Base station obtains the probability of complete redundancy versions, and then can improve upstream data decoding success rate.Meanwhile, user equipment is
It is secondary to retransmit reference signal and re-transmission upstream data and the initial transmission upstream data institute for the first time that the upstream data is used
The reference signal for using has default corresponding relation, so that base station can pass through used reference signal to determine to be connect
The upstream data of receipts is retransmitted for second.
Secondly being：User equipment randomly selected in scheduling resource pond is exempted from exempt from scheduling multiple access access-in resource transmit again it is up
Data.This kind of mode, by instruction user equipment again from it is default exempt from scheduling resource pond in randomly select exempt from scheduling multiple access connect
Enter resource, identical is used again using between the user equipment of identical reference signal transmission upstream data before can causing
The probability that reference signal sends upstream data is substantially reduced, and is translated such that it is able to reduce the upstream data caused by reference signal conflict
The probability of code failure, and then the reliability of data transfer can be improved, such that it is able to save resources, improve system effectiveness.
Step S317：The first time that the user equipment receives base station transmission in corresponding feedback time window retransmits
When corresponding feedback information includes retransmitting for the first time used reference signal mark, ACK and customer equipment identification, and need after
During continuous subsequent upstream data transfer, performed since step S301.
In specific implementation, when the first time re-transmission that base station transmission is received in corresponding feedback time window is corresponding
Feedback information, and the feedback information for being received includes the used reference signal mark of re-transmission for the first time, ACK and user equipment mark
During the information of knowledge, user equipment can determine the success of this transmitting uplink data.
Meanwhile, when subsequently there is other transmitting uplink datas, user equipment can be to other upstream datas from step
Rapid S301 starts to perform.
Step S318：The user equipment does not receive the first time weight of base station transmission in corresponding feedback time window
Corresponding feedback information is passed, is performed since step S309.
In specific implementation, correspondence is retransmitted when the first time that base station transmission is not received in corresponding feedback time window
Feedback information when, user equipment can determine base station do not receive for the first time retransmit upstream data.Meanwhile, user equipment can
A re-transmission backoff time is randomly selected with from corresponding re-transmission backoff time window, the upstream data is resend, namely
Performed since step S305.
Step S319：The user equipment is receiving corresponding feedback information including retransmitting used reference for the first time
When signal identification and NACK, performed since step S309.
In specific implementation, when received in corresponding feedback time window base station transmission including first time retransmit institute
When the reference signal of use identifies the feedback information with NACK, show that base station receives the upstream data but decoding for retransmitting for the first time
Failure, and be channel quality the reason for first transmission data failure.Now, user equipment can be in corresponding re-transmission backoff time
Re-transmission backoff time is randomly selected in window and resends the upstream data, namely performed since step S305.
Step S320：User equipment includes retransmitting used reference letter for the first time in the feedback information for receiving base station transmission
Number mark and during COL, carries out second re-transmission under the instruction of the feedback information for being received.
In specific implementation, when the corresponding feedback information received in corresponding feedback time window is included for the first time
During the information of the used reference signal mark of re-transmission and COL, user equipment can use data is activation mode set in advance
Second re-transmission of upstream data is carried out, or includes retransmitting for the first time when the first time for receiving retransmits corresponding feedback information
Used reference signal mark, COL, and second retransmit upstream data data is activation mode configured information when, user
Equipment carries out second re-transmission using the data is activation mode indicated in feedback information.
Step S321：Base station retransmitting blind check in corresponding re-transmission backoff time window for the second time, and when detecting user
During the upstream data that equipment is retransmitted for second, the upstream data that the upstream data that second is retransmitted is retransmitted with first time merges to be translated
Code.
In specific implementation, base station detects user for the second time retransmitting corresponding re-transmission backoff time window by blind check
During the upstream data that equipment is uploaded, when the reference signal used by upstream data determines that received upstream data is second
During secondary re-transmission, second is retransmitted and merges decoding with the upstream data for retransmitting for the first time by base station.Wherein, merging decoding can be with
Interpretation method is merged using CC or IR, those skilled in the art can be selected according to the actual needs, the present invention exists
This is not limited.
It is to be herein pointed out when first time retransmits and second retransmits, the reference signal that user equipment is used
By being retransmitted with first transmission or with first transmission and first time, used reference signal is corresponding, namely the reference signal for using
It is to determine, and because other multiple access access-in resources in reference signal and multiple access access-in resource in addition to reference signal have in advance
If incidence relation, when reference signal determines, other multiple access access-in resources in the multiple access access-in resource for being used are also true
Fixed, i.e., when reference signal determines, corresponding multiple access access-in resource will also determine.The scheduling multiple access of exempting from for being used is retransmitted for the first time to connect
Entering the frequency domain resource in resource can then randomly select in scheduling resource pond is exempted from, or the frequency domain resource used with first transmission
With default incidence relation.Retransmitting the frequency domain resource for exempting to dispatch in multiple access access-in resource for being used for second can then exempt from
Scheduling resource is randomly selected in pond, with first transmission and for the first time the used frequency domain resource of re-transmission there is default association to close
System.
The above-mentioned uplink data transmission method in the embodiment of the present invention is described in detail, below by above-mentioned
The corresponding device of method is described.
Fig. 4 shows a kind of user equipment in the embodiment of the present invention.Referring to Fig. 4, the user equipment 400 can include
Transmitting element 401, judging unit 402 and retransmission unit 403, wherein：
The transmitting element 401, be suitable to it is default exempt from scheduling resource pond in randomly select exempt from dispatch multiple access access-in resource
Upstream data is sent to base station；The scheduling multiple access access-in resource of exempting from for randomly selecting includes the reference in correspondence reference signal group
Having with the upload number of times of the upstream data for reference signal mark in the information of signal, and the reference signal group is preset
One-to-one relationship；
Whether the judging unit 402, is suitable to judge received in default feedback time window described in the transmission of base station
The corresponding feedback information of upstream data；
The retransmission unit 403, be suitable to when be received in the feedback time window base station transmission feedback information and
When determining the upstream data decoding failure by the feedback information, according to current re-transmission number of times, in received feedback
Under the instruction of information, from it is described exempt from scheduling multiple access access-in resource pond in choose it is corresponding exempt from scheduling multiple access access-in resource retransmit it is described
Upstream data；Wherein, the selected reference signal exempted from scheduling resource accesses money with the scheduling multiple access of exempting from for randomly selecting
Reference signal in source has default corresponding relation so that identify upstream data based on the corresponding relation in the base station
The reason for uploading number of times and decoding failure.
In specific implementation, the selected scheduling resource of exempting from includes time-frequency physical resource and multiple access access-in resource, institute
Stating, there is default association to close between other multiple access access-in resources and reference signal in multiple access access-in resource in addition to reference signal
System.
In an embodiment of the present invention, the retransmission unit 403, is suitable to when upstream data described in first transmission is corresponding anti-
Feedforward information includes：When the reference signal that upstream data described in first transmission is used identifies the information with NACK, default heavy
It is random in biography backoff time window to determine that one retransmits backoff time, and exempt to adjust using from described in identified re-transmission backoff time
Corresponding scheduling multiple access access-in resource of exempting from is chosen in degree multiple access access-in resource pond and retransmits the upstream data, the NACK for the first time
Information is suitable to characterize upstream data decoding failure described in first transmission.
In an embodiment of the present invention, the retransmission unit 403, is suitable to ought for the first time to retransmit the upstream data corresponding
Feedback information includes：When retransmitting the information of reference signal mark that the upstream data used and NACK for the first time, in correspondence
Re-transmission backoff time window in it is random determine that one retransmits backoff time, and exempt to adjust from described in identified re-transmission backoff time
Randomly selected in degree multiple access access-in resource pond and exempt from scheduling multiple access access-in resource and retransmit the upstream data for the second time；Wherein, it is described
Nack message is suitable to characterize and retransmits the upstream data decoding failure for the first time and the reason for first transmission data decoding fails, and
Determine that the reason for first transmission data decoding fails is channel quality.
In an embodiment of the present invention, the retransmission unit 403, is suitable to ought for the first time to retransmit the upstream data corresponding
Feedback information includes：When retransmitting the information of reference signal mark that the upstream data used and COL for the first time, using advance
The data is activation mode of agreement retransmits the upstream data for the second time；Wherein, COL be suitable to characterize for the first time retransmit the upper line number
The reason for according to decoding failure and first transmission upstream data decoding failure, and determine that the reason for first transmission data decoding fails is
Reference signal conflicts.
In an embodiment of the present invention, the retransmission unit 403, is suitable to ought for the first time to retransmit the upstream data corresponding
Feedback information includes：Reference signal mark, COL and retransmit on described for the second time that the upstream data used are retransmitted for the first time
During the configured information of the data is activation mode of row data, using with indicated by acquired configured information from the feedback information
Data is activation mode retransmit the upstream data for the second time.
In specific implementation, the retransmission unit 403 is suitable for use with including following any one described data is activation mode
It is secondary to retransmit the upstream data：Used in corresponding re-transmission backoff time window and retransmit the upstream data phase with first time
Same re-transmission backoff time and use retransmits described up for the second time with upstream data identical redundancy versions described in first transmission
Data；From it is described exempt from scheduling multiple access access-in resource pond in randomly select exempt from scheduling multiple access access-in resource retransmit for the second time it is described up
Data.
Fig. 5 shows a kind of structure of the base station in the embodiment of the present invention.Referring to Fig. 5, the one kind in the embodiment of the present invention
Base station 500 can include blind check unit 501, determining unit 502, decoding unit 503 and feedback unit 504, wherein：
Blind check unit 501, is suitable to carry out blind check to default scheduling resource pond of exempting from；
Determining unit 502, is suitable to, when the upstream data of user equipment re-transmission is detected, be adopted based on the upstream data
Reference signal determines the reason for causing front and continued to transmit the upstream data decoding failure；
Decoding unit 503, is suitable to the reason for according to the front and continued transmission upstream data decoding failure is caused, and selection is corresponding
Individually decoding or merging decoded mode enter row decoding to this described upstream data of re-transmission；
Feedback unit 504, is suitable to when to this re-transmission described upstream data decoding failure, institute be retransmitted based on front and continued is caused
The reason for stating upstream data decoding failure, generates this and retransmits corresponding feedback information and send to the user equipment, so that
The user equipment under the instruction of the feedback information, from it is described exempt from scheduling resource pond in choose and corresponding exempt to dispatch multiple access
Access-in resource retransmits the upstream data.
In an embodiment of the present invention, the determining unit 502, is suitable to based on the corresponding reference signal of the upstream data
Mark with upload number of times between corresponding relation, determine the upstream data upload number of times information；When the upper line number
During according to being retransmitted for first time, acquisition is detected in corresponding re-transmission backoff time window and retransmits corresponding reference signal for the first time
Number of times；Corresponding reference signal is once retransmitted for the first time when being detected in corresponding re-transmission backoff time window, it is determined that leading
The reason for causing the upstream data decoding failure is channel quality；Detected twice when in corresponding re-transmission backoff time window
When the above retransmits correspondence reference signal for the first time, it is determined that the reason for causing upstream data decoding failure described in first transmission is reference
Signal conflict.
In an embodiment of the present invention, the decoding unit 503, is suitable to when the determination upstream data is heavy for the first time
Pass, and when it is determined that the reason for upstream data decoding failure described in first transmission for channel quality when, by the upstream data with it is first
The upstream data of secondary transmission merges decoding；When it is determined that being with reference to letter the reason for upstream data decoding failure described in first transmission
Number conflict when, the upstream data is individually entered into row decoding.
In an embodiment of the present invention, the feedback unit 504, is suitable to cause when first time retransmits decoding failure and determination
When being channel quality the reason for upstream data decoding failure described in first transmission, the first time for being generated retransmits corresponding feedback letter
Breath includes retransmitting for the first time the information of the corresponding reference signal mark of the upstream data and NACK, and NACK is suitable to characterize for the first time
Retransmit the upstream data decoding failure and the reason for first transmission data decoding fails, and determine that first transmission data decoding loses
The reason for losing is channel quality.
In an embodiment of the present invention, the feedback unit 504, is suitable to cause when first time retransmits decoding failure and determination
When conflicting for reference signal the reason for upstream data decoding failure described in first transmission, the first time for being generated retransmits corresponding anti-
Feedforward information includes retransmitting for the first time the information of the corresponding reference signal mark of the upstream data and COL, to cause the user
Equipment receive for the first time retransmit corresponding feedback information when, institute is retransmitted using the data is activation mode made an appointment for the second time
State upstream data.
In an alternative embodiment of the invention, the feedback unit 504, is suitable to retransmit decoding failure when first time and determination is led
When conflicting for reference signal the reason for upstream data decoding failure described in cause first transmission, the first time for being generated retransmits corresponding
Feedback information includes retransmitting the corresponding reference signal mark of the upstream data, COL for the first time and retransmits for the second time described up
The information of the instruction of the data is activation mode of data.
In specific implementation, the data is activation mode include it is following any one：Adopted in corresponding re-transmission back-off window
Backoff time is retransmitted with the upstream data identical is retransmitted with first time and using identical with upstream data described in first transmission
Redundancy versions retransmit the upstream data for the second time；From it is described exempt from scheduling multiple access access-in resource pond in randomly select that to exempt from scheduling more
Location access-in resource retransmits the upstream data for the second time.
In an embodiment of the present invention, the decoding unit 503, is suitable to when the determination upstream data is for second retransmits
When, second is retransmitted and merges decoding with the upstream data for retransmitting for the first time by base station.
In specific implementation, the decoding unit 503, is suitable for use with CC decodings or IR decodings merge decoding.
Above-mentioned scheme, is identified by base station side to reference signal conflict, and can distinguish causes data transfer to be lost
The two kinds of reasons for losing, i.e. bad channel quality and reference signal conflict, fail for transmitting uplink data caused by bad channel quality,
HARQ using first transmission and the upstream data for retransmitting merges, and can obtain merging decoding gain, improves transmission reliability；It is right
The transmitting uplink data failure caused by reference signal conflicts, just pass data only to re-transmission data decoding, or do using removing
HARQ merges the method for decoding, can eliminate the influence of the decoding error that reference signal conflict brings, and can improve transmission reliable
Property.
Also, base station can be indicated to user by sending reference signal collision feedback, and notify that user uses and front and continued
The method that identical backoff time is retransmitted is retransmitted, so that before base station can determine that each user is corresponding according to backoff time
It is continuous to retransmit, and accordingly retransmit data and do with front and continued and merges decoding, it is hereby achieved that merging decoding gain, improve and transmit reliability
Property.And two kinds of HARQ forms of CC and IR can be supported, the flexibility for merging decoding can be improved.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
Completed with instructing the hardware of correlation by program, the program can be stored in a computer-readable recording medium, storage
Medium can include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art, are not departing from this
In the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
The scope of restriction is defined.
Claims (32)
1. a kind of uplink data transmission method, it is characterised in that including：
It is default exempt from scheduling resource pond in randomly select exempt from scheduling multiple access access-in resource to base station send upstream data；It is described with
What machine was chosen exempts to dispatch information of the multiple access access-in resource including the reference signal in correspondence reference signal group, and the reference signal
Reference signal mark in group has default one-to-one relationship with the upload number of times of the upstream data；
Judge whether the corresponding feedback information of the upstream data that base station sends is received in default feedback time window；
Determine when the feedback information that base station transmission is received in the feedback time window and by the feedback information described
During upstream data decoding failure, according to current re-transmission number of times, under the instruction of received feedback information, scheduling is exempted from from described
Corresponding scheduling multiple access access-in resource of exempting from is chosen in multiple access access-in resource pond and retransmits the upstream data；Wherein, it is selected to exempt from
Reference signal in scheduling resource has default with the reference signal for exempting to dispatch in multiple access access-in resource for randomly selecting
Corresponding relation so that the base station is based on the original for uploading number of times and decoding failure that the corresponding relation identifies upstream data
Cause.
2. uplink data transmission method according to claim 1, it is characterised in that described selected to exempt from scheduling resource bag
Time-frequency physical resource and multiple access access-in resource are included, other multiple access in the multiple access access-in resource in addition to reference signal access money
There is default incidence relation between source and reference signal.
3. uplink data transmission method according to claim 2, it is characterised in that described according to current re-transmission number of times,
Under the instruction of received feedback information, from it is described exempt from scheduling multiple access access-in resource pond in choose corresponding scheduling multiple access of exempting from and connect
Enter resource and retransmit the upstream data, including：
When the corresponding feedback information of upstream data described in first transmission includes：The reference that upstream data described in first transmission is used
During the information of signal identification and NACK, the random re-transmission of determination one backoff time in default re-transmission backoff time window, and
Identified re-transmission backoff time use from it is described exempt from scheduling multiple access access-in resource pond in choose corresponding scheduling multiple access of exempting from and access
Resource retransmits the upstream data for the first time, and the nack message is suitable to characterize upstream data decoding failure described in first transmission.
4. uplink data transmission method according to claim 3, it is characterised in that described according to current re-transmission number of times,
Under the instruction of received feedback information, from it is described exempt from scheduling multiple access access-in resource pond in choose corresponding scheduling multiple access of exempting from and connect
Enter resource and retransmit the upstream data, including：
Include when first time retransmits the corresponding feedback information of the upstream data：Retransmit what the upstream data was used for the first time
It is random in corresponding re-transmission backoff time window to determine that one retransmits backoff time when reference signal identifies the information with NACK,
And identified re-transmission backoff time from it is described exempt from scheduling multiple access access-in resource pond in randomly select and exempt from scheduling multiple access and access money
Source retransmits the upstream data for the second time；Wherein, the nack message is suitable to characterize and retransmits upstream data decoding for the first time
The reason for failure and first transmission data decoding fail, and determine the reason for first transmission data decoding fails for channel quality.
5. uplink data transmission method according to claim 3, it is characterised in that described according to current re-transmission number of times, institute
State under the instruction of received feedback information, from it is described exempt from scheduling multiple access access-in resource pond in choose that corresponding to exempt from scheduling more
Location access-in resource retransmits the upstream data, including：
Include when first time retransmits the corresponding feedback information of the upstream data：Retransmit what the upstream data was used for the first time
When reference signal identifies the information with COL, the upstream data is retransmitted using the data is activation mode made an appointment for the second time；Its
In, COL is suitable to characterize the reason for retransmitting the upstream data decoding failure and first transmission upstream data decoding failure for the first time,
And determine that the reason for first transmission data decoding fails is reference signal conflict.
6. uplink data transmission method according to claim 3, it is characterised in that described according to current re-transmission number of times, institute
State under the instruction of received feedback information, from it is described exempt from scheduling multiple access access-in resource pond in choose that corresponding to exempt from scheduling more
Location access-in resource retransmits the upstream data, including：
Include when first time retransmits the corresponding feedback information of the upstream data：Retransmit what the upstream data was used for the first time
Reference signal mark, COL and when retransmitting the configured information of data is activation mode of the upstream data for the second time, using with from institute
State the data is activation mode indicated by acquired configured information in feedback information and retransmit the upstream data for the second time.
7. according to claim 5 or 6 or described uplink data transmission method, it is characterised in that the data is activation mode bag
Include it is following any one：
Used in corresponding re-transmission backoff time window and retransmit the upstream data identical re-transmission backoff time with first time
And use retransmits the upstream data for the second time with upstream data identical redundancy versions described in first transmission；
From it is described exempt from scheduling multiple access access-in resource pond in randomly select exempt from scheduling multiple access access-in resource retransmit for the second time it is described up
Data.
8. a kind of uplink data transmission method, it is characterised in that including：
Blind check is carried out to default scheduling resource pond of exempting from；
When the upstream data of user equipment re-transmission is detected, determine to cause based on the reference signal that the upstream data is used
The reason for front and continued transmits the upstream data decoding failure；
The reason for according to causing front and continued to transmit the upstream data decoding failure, selection is corresponding individually to be decoded or merges decoding
Mode enters row decoding to this described upstream data of re-transmission；
When to this re-transmission described upstream data decoding failure, the upstream data decoding failure is transmitted based on front and continued is caused
Reason, generates this and retransmits corresponding feedback information and send to the user equipment, to cause the user equipment described
Under the instruction of feedback information, from it is described exempt from scheduling resource pond in choose it is corresponding exempt from scheduling multiple access access-in resource retransmit it is described up
Data.
9. uplink data transmission method according to claim 8, it is characterised in that described to be adopted based on the upstream data
Reference signal determines the reason for causing front and continued to transmit the upstream data decoding failure, including：
Based on the corresponding reference signal mark of the upstream data and the corresponding relation between upload number of times, determine described up
The information of the upload number of times of data；
When the upstream data to retransmit for the first time, obtain and detect weight for the first time in corresponding re-transmission backoff time window
Pass the number of times of corresponding reference signal；
Corresponding reference signal is once retransmitted for the first time when being detected in corresponding re-transmission backoff time window, it is determined that causing just
The reason for secondary transmission upstream data decoding failure is channel quality；
When re-transmission correspondence reference signal for the first time more than twice is detected in corresponding re-transmission backoff time window, it is determined that leading
The reason for causing upstream data decoding failure described in first transmission is reference signal conflict.
10. uplink data transmission method according to claim 9, it is characterised in that when it is determined that the upstream data is the
When once retransmitting, the reason for the basis causes front and continued to transmit the upstream data decoding failure, the corresponding individually decoding of selection
Or merging decoded mode enters row decoding to this described upstream data of re-transmission, including：
When it is determined that the reason for upstream data decoding failure described in first transmission for channel quality when, by the upstream data with it is first
The upstream data of transmission merges decoding；
When it is determined that conflicting for reference signal the reason for upstream data decoding failure described in first transmission, by the upstream data list
Solely enter row decoding.
11. uplink data transmission methods according to claim 9, it is characterised in that when first time decoding failure is retransmitted,
And when determining that the reason for causing upstream data decoding failure described in first transmission is for channel quality, corresponding feedback is retransmitted for the first time
Information includes retransmitting for the first time the information of the corresponding reference signal mark of the upstream data and NACK, and NACK is suitable to sign first
It is secondary to retransmit the upstream data decoding failure and described in first transmission the reason for upstream data decoding failure, and determine first transmission
The reason for upstream data decoding failure is channel quality.
12. uplink data transmission methods according to claim 9, it is characterised in that when first time retransmit decoding failure and
It is determined that the reason for causing upstream data decoding failure described in first transmission for reference signal conflict when, retransmit for the first time corresponding anti-
Feedforward information includes retransmitting for the first time the information of the corresponding reference signal mark of the upstream data and COL, to cause the user
Equipment receive for the first time retransmit corresponding feedback information when, institute is retransmitted using the data is activation mode made an appointment for the second time
State upstream data.
13. uplink data transmission methods according to claim 9, it is characterised in that when first time retransmit decoding failure and
It is determined that the reason for causing upstream data decoding failure described in first transmission for reference signal conflict when, retransmit for the first time corresponding anti-
Feedforward information includes retransmitting the corresponding reference signal mark of the upstream data, COL for the first time and retransmits the upper line number for the second time
According to data is activation mode instruction information.
14. uplink data transmission method according to claim 12 or 13, it is characterised in that the data is activation mode bag
Include it is following any one：
Used in corresponding re-transmission back-off window and retransmit the upstream data identical re-transmission backoff time with first time and adopt
The upstream data is retransmitted for the second time with upstream data identical redundancy versions described in first transmission；
From it is described exempt from scheduling multiple access access-in resource pond in randomly select exempt from scheduling multiple access access-in resource retransmit for the second time it is described up
Data.
15. uplink data transmission methods according to claim 14, it is characterised in that when it is determined that the upstream data is the
During secondary re-transmission, the reason for the basis causes front and continued to transmit the upstream data decoding failure, the corresponding individually decoding of selection
Or merging decoded mode enters row decoding to this described upstream data of re-transmission, including：
When it is determined that conflicting for reference signal the reason for upstream data decoding failure described in first transmission, the institute that second is retransmitted
State upstream data and merge decoding with the upstream data of first time re-transmission.
16. uplink data transmission methods according to claim 15, it is characterised in that the merging be decoded as CC decoding or
IR is decoded.
A kind of 17. user equipmenies, it is characterised in that including：
Transmitting element, be suitable to it is default exempt from scheduling resource pond in randomly select exempt from scheduling multiple access access-in resource to base station send on
Row data；The scheduling multiple access access-in resource of exempting from for randomly selecting includes the information of the reference signal in correspondence reference signal group,
And the reference signal mark in the reference signal group has default one-to-one corresponding with the upload number of times of the upstream data
Relation；
Whether judging unit, is suitable to judge the upstream data correspondence for receiving base station transmission in default feedback time window
Feedback information；
Retransmission unit, is suitable to when the feedback information that base station transmission is received in the feedback time window and by the feedback
When information determines the upstream data decoding failure, according to current re-transmission number of times, under the instruction of received feedback information,
From it is described exempt from scheduling multiple access access-in resource pond in choose corresponding scheduling multiple access access-in resource of exempting from and retransmit the upstream data；Its
In, the selected reference signal exempted from scheduling resource is believed with the reference in scheduling multiple access access-in resource of exempting from for randomly selecting
Number have default corresponding relation so that the upload number of times of upstream data is identified based on the corresponding relation and is translated in the base station
The reason for code failure.
18. user equipmenies according to claim 17, it is characterised in that the selected scheduling resource of exempting from includes time-frequency
Physical resource and multiple access access-in resource, other multiple access access-in resources and ginseng in the multiple access access-in resource in addition to reference signal
There is default incidence relation between examining signal.
19. user equipmenies according to claim 18, it is characterised in that the retransmission unit, are suitable to when first transmission institute
Stating the corresponding feedback information of upstream data includes：The reference signal mark that upstream data described in first transmission is used is with NACK's
It is random in default re-transmission backoff time window to determine that one retransmits backoff time during information, and retreated in identified re-transmission
Time use from it is described exempt from scheduling multiple access access-in resource pond in choose corresponding scheduling multiple access access-in resource of exempting from and retransmit institute for the first time
Upstream data is stated, the nack message is suitable to characterize upstream data decoding failure described in first transmission.
20. user equipmenies according to claim 19, it is characterised in that the retransmission unit, are suitable to be retransmitted when for the first time
The corresponding feedback information of the upstream data includes：Retransmit for the first time reference signal mark that the upstream data used and
It is random in corresponding re-transmission backoff time window to determine that one retransmits backoff time during the information of NACK, and in identified weight
Pass backoff time from it is described exempt from scheduling multiple access access-in resource pond in randomly select and exempt from scheduling multiple access access-in resource and retransmit institute for the second time
State upstream data；Wherein, the nack message be suitable to characterize for the first time retransmit the upstream data decoding failure and first transmission
The reason for data decoding fails, and determine the reason for first transmission data decoding fails for channel quality.
21. user equipmenies according to claim 19, it is characterised in that the retransmission unit, are suitable to be retransmitted when for the first time
The corresponding feedback information of the upstream data includes：Retransmit for the first time reference signal mark that the upstream data used and
During the information of COL, the upstream data is retransmitted using the data is activation mode made an appointment for the second time；Wherein, COL is suitable to characterize
The reason for retransmitting the upstream data decoding failure and first transmission upstream data decoding failure for the first time, and determine first transmission
The reason for data decoding fails is reference signal conflict.
22. user equipmenies according to claim 19, it is characterised in that the retransmission unit, are suitable to be retransmitted when for the first time
The corresponding feedback information of the upstream data includes：Reference signal mark, COL that the upstream data is used are retransmitted for the first time
When retransmitting the configured information of data is activation mode of the upstream data for the second time, obtained using with from the feedback information
Data is activation mode indicated by the configured information for taking retransmits the upstream data for the second time.
23. according to claim 21 or 22 or described user equipment, it is characterised in that the retransmission unit, is suitable for use with bag
Include following any one described data is activation mode and retransmit the upstream data for the second time：
Used in corresponding re-transmission backoff time window and retransmit the upstream data identical re-transmission backoff time with first time
And use retransmits the upstream data for the second time with upstream data identical redundancy versions described in first transmission；
From it is described exempt from scheduling multiple access access-in resource pond in randomly select exempt from scheduling multiple access access-in resource retransmit for the second time it is described up
Data.
A kind of 24. base stations, it is characterised in that including：
Blind check unit, is suitable to carry out blind check to default scheduling resource pond of exempting from；
Determining unit, is suitable to when the upstream data of user equipment re-transmission is detected, based on the ginseng that the upstream data is used
Examine signal and determine the reason for causing front and continued to transmit the upstream data decoding failure；
Decoding unit, is suitable to the reason for according to the front and continued transmission upstream data decoding failure is caused, and selection is individually translated accordingly
Code or merging decoded mode enter row decoding to this described upstream data of re-transmission；
Feedback unit, is suitable to when to this re-transmission described upstream data decoding failure, described up based on causing front and continued to retransmit
The reason for data decoding fails, generates this and retransmits corresponding feedback information and send to the user equipment, described to cause
User equipment under the instruction of the feedback information, from it is described exempt from scheduling resource pond in choose corresponding scheduling multiple access of exempting from and access money
Source retransmits the upstream data.
25. base stations according to claim 24, it is characterised in that the determining unit, are suitable to based on the upstream data
Corresponding reference signal mark with upload the corresponding relation between number of times, determine the letter of the upload number of times of the upstream data
Breath；When the upstream data to retransmit for the first time, obtain and detect weight for the first time in corresponding re-transmission backoff time window
Pass the number of times of corresponding reference signal；When it is corresponding re-transmission backoff time window in detect once retransmit for the first time it is corresponding
Reference signal, it is determined that the reason for causing the upstream data decoding failure is channel quality；When in corresponding re-transmission backoff time
When the correspondence reference signal of first time re-transmission more than twice is detected in window, it is determined that causing upstream data described in first transmission to decode
The reason for failure is reference signal conflict.
26. base stations according to claim 25, it is characterised in that the decoding unit, are suitable to when the determination upper line number
According to being to retransmit for the first time, and when it is determined that the reason for upstream data decoding failure described in first transmission for channel quality when, will be described
Upstream data merges decoding with the upstream data of first transmission；When it is determined that upstream data decoding failure described in first transmission
Reason for reference signal conflict when, the upstream data is individually entered into row decoding.
27. base stations according to claim 25, it is characterised in that the feedback unit, are suitable to cause on described when determination
When the reason for row data decoding failure is channel quality, the first time for being generated retransmits corresponding feedback information includes weight for the first time
The information of the corresponding reference signal mark of the upstream data and NACK is passed, NACK is suitable to sign and retransmits the upper line number for the first time
The reason for failing according to decoding failure and first transmission data decoding, and determine the reason for first transmission data decoding fails for channel
Quality.
28. base stations according to claim 25, it is characterised in that the feedback unit, are suitable to be retransmitted for the first time when determination
Decoding failure and when conflicting for reference signal the reason for cause upstream data decoding failure described in first transmission, first for being generated
It is secondary to retransmit corresponding feedback information including retransmitting the information of the corresponding reference signal mark of the upstream data and COL for the first time,
With cause the user equipment receive for the first time retransmit corresponding feedback information when, using the data sender for making an appointment
Formula retransmits the upstream data for the second time.
29. base stations according to claim 25, it is characterised in that the feedback unit, are suitable to when re-transmission decoding for the first time
Failure and when determination conflicts the reason for cause upstream data decoding failure described in first transmission for reference signal, first for being generated
It is secondary to retransmit corresponding feedback information and include retransmitting for the first time the corresponding reference signal mark of the upstream data, COL and second
Retransmit the information of the data is activation mode of the upstream data.
30. base station according to claim 28 or 29, it is characterised in that the data is activation mode includes following any
Kind：
Used in corresponding re-transmission back-off window and retransmit the upstream data identical re-transmission backoff time with first time and adopt
The upstream data is retransmitted for the second time with upstream data identical redundancy versions described in first transmission；
From it is described exempt from scheduling multiple access access-in resource pond in randomly select exempt from scheduling multiple access access-in resource retransmit for the second time it is described up
Data.
31. base stations according to claim 30, it is characterised in that the decoding unit, are suitable to when the determination upper line number
According to for second retransmit and determine upstream data decoding failure described in first transmission the reason for for reference signal conflict when, by second
The upstream data that the upstream data of secondary re-transmission is retransmitted with first time merges decoding.
32. base stations according to claim 31, it is characterised in that the decoding unit, are suitable for use with CC decodings or IR is translated
Code merges decoding.
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