CN106793091A - Base station, user equipment and data transmission method - Google Patents
Base station, user equipment and data transmission method Download PDFInfo
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- CN106793091A CN106793091A CN201610973540.7A CN201610973540A CN106793091A CN 106793091 A CN106793091 A CN 106793091A CN 201610973540 A CN201610973540 A CN 201610973540A CN 106793091 A CN106793091 A CN 106793091A
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- 238000000034 method Methods 0.000 title claims abstract description 71
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 150
- 238000012546 transfer Methods 0.000 claims abstract description 59
- 238000013475 authorization Methods 0.000 claims description 19
- 238000013507 mapping Methods 0.000 claims description 11
- 238000004891 communication Methods 0.000 description 17
- 230000011664 signaling Effects 0.000 description 7
- 230000001174 ascending effect Effects 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/02—Selection of wireless resources by user or terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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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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Abstract
Base station, user equipment and data transmission method, methods described include：When needing to carry out transmitting uplink data, it is default exempt from scheduling resource pond in random selection exempt from scheduling access-in resource to base station transmit primary data information；The primary data information includes the report of corresponding upstream data, customer equipment identification and follow-up data；Whether the follow-up data report includes the follow-up information for needing to transmit upstream data, and when transmission upstream data is subsequently needed, the information of the data volume of subsequent upstream data；Receive the feedback information that the base station sends when receiving the primary data information and correctly parsing the primary data information of the user equipment transmission；Based on the scheduling configured information acquired from the feedback information, subsequent upstream data transfer is carried out.Above-mentioned scheme, can when transmitting uplink data is carried out save resources, reduce data transmission delay, and improve reliability.
Description
Technical field
The present invention relates to wireless communication technology, more particularly to a kind of base station, user equipment and data transmission method.
Background technology
Long Term Evolution (Long Term Evolution, LTE) system is using the data based on scheduling (grant-based)
Transmission method, and (Orthogonal Frequency Division Multiple are accessed using downstream Quadrature frequency division multiple access
Access, OFDMA), uplink single-carrier frequency division multiple access (Single-carrier Frequency-Division Multiple
Access, SC-FDMA) access way.When the user equipment in Idle state (idle state) has data to send, its
Set up with cell by random access procedure first and be connected, obtained unique wireless network that base station is its distribution and mark temporarily
(Cell-Radio Network Temporary Identifier, C-RNTI).Further, user sends up tune to base station
To notify base station, it has data to send degree request (scheduling Request, SR), and asks base station for its distribution is up
Resource, base station is that user distributes ascending resource by uplink scheduling authorization (Scheduling Grant, SG).Thereafter, Yong Hugen
Uplink is carried out in respective resources according to the instruction of scheduling authorization, because uplink is by base station dynamic dispatching, therefore base station can
The data that scheduled user equipment sends are received and decoded in respective resources.
The 5th generation communication technology (5G) communication three major businesses scene-enhancing mobile broadband (eMBB), extensive 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).It is being based on
Exempt from the ascending transmission method of scheduling, when the user in Idle state has data to send, it need not send to base station and adjust
Degree request and wait base station uplink scheduling authorization are its distribution ascending resource, and user directly can be passed on scheduling resource is exempted from
It is defeated.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 is that user equipment is random
Scheduling resource is exempted from selection carries out uplink；Type II is pre- by base station for the scheduling resource of exempting from that user equipment carries out uplink
It is configuration or having predefined.
But, either above-mentioned method has signaling consumption greatly, time delay problem more long, or it is reliable to there is transmission
Property difference problem.
The content of the invention
Present invention solves the technical problem that be how when transmitting uplink data is carried out save resources, reduce data transfer when
Prolong, and improve the reliability of data transfer.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of data transmission method, including：On needs are carried out
During row data transfer, it is default exempt from scheduling resource pond in random selection exempt from scheduling access-in resource to base station transmit initial number it is believed that
Breath；The primary data information includes the report of corresponding upstream data, customer equipment identification and follow-up data；The follow-up number
It was reported that the information including subsequently whether needing to transmit upstream data, and when it is follow-up need transmission upstream data when, it is follow-up on
The information of the data volume of row data；The base station is received to receive the primary data information and correctly parsing the user
The feedback information that the primary data information that equipment sends constantly sends；When follow-up data report includes that needs are carried out subsequently
During the information of uplink, the feedback information includes the scheduling configured information of subsequent upstream data transfer；Based on from described anti-
The scheduling configured information acquired in feedforward information, carries out subsequent upstream data transfer.
Alternatively, the scheduling resource pond of exempting from includes time-frequency physical resource and multiple access access-in resource.
Alternatively, the multiple access access-in resource includes code book, code word, sequence, interleaver, the mapping method of interleaver, solution
Adjust at least one of reference signal, lead code, spatial domain resource and power domain resource.
Alternatively, the primary data information is sent using data volume less than the packet of predetermined threshold value, and uses low order
Code modulating method carries out coded modulation.
Alternatively, the predetermined threshold value determines according to system requirements.
Alternatively, the scheduling configured information includes the configuration information for exempting to dispatch multi-access resource.
Alternatively, it is described based on the scheduling configured information that obtains is parsed in the feedback information, carry out subsequent upstream data
Transmission, including：Multi-access resource is dispatched using exempting from indicated by scheduling configured information, subsequent upstream data are transmitted to base station.
Alternatively, the scheduling configured information includes the corresponding scheduling authorization information of subsequent upstream data transfer.
Alternatively, it is described based on the scheduling configured information that obtains is parsed in the feedback information, carry out subsequent upstream data
Transmission, including：According to the scheduling authorization information, subsequent upstream data are transmitted to base station under the scheduling of the base station.
Alternatively, when the feedback information that the base station sends is not received within the default time, also include：From institute
State to exempt to randomly select in scheduling resource pond and exempt from scheduling access-in resource and transmit the primary data information to the base station again.
The embodiment of the present invention additionally provides another data transmission method, including：Exempt from scheduling access-in resource pond to default
Carry out blind check；When the primary data information of user device transmissions is detected, the primary data information is parsed；It is described
Primary data information includes the letter of corresponding upstream data, demodulated reference signal, customer equipment identification and follow-up data report
Breath；The follow-up data report includes whether to need the information of subsequent transmission upstream data, and working as needs subsequent transmission up
The information of the data volume of subsequent upstream data during data；When the primary data information for correctly parsing the user equipment transmission
When, send corresponding feedback information to the user equipment；When follow-up data report includes needing to carry out subsequent upstream
During the information of transmission, the feedback information includes the scheduling configured information of subsequent upstream data transfer.
Alternatively, the scheduling resource pond of exempting from includes time-frequency physical resource and multiple access access-in resource.
Alternatively, the multiple access access-in resource includes code book, code word, sequence, interleaver, the mapping method of interleaver, solution
Adjust at least one of reference signal, lead code, spatial domain resource and power domain resource.
Alternatively, small data packets of the primary data information using data volume less than predetermined threshold value, and compiled using low order
Code modulator approach carries out coded modulation.
Alternatively, the predetermined threshold value determines according to system requirements.
Alternatively, the follow-up data report includes whether to need the information of subsequent transmission upstream data, and when needs
During subsequent transmission upstream data, the information of the data volume of subsequent upstream data.
Alternatively, the scheduling configured information includes exempting from the configuration information or subsequent upstream data transfer of dispatching multi-access resource
Corresponding scheduling authorization information.
The embodiment of the present invention additionally provides a kind of user equipment, including：First transmitting element, is suitable to up when need to carry out
During data transfer, it is default exempt from scheduling resource pond in random selection exempt from scheduling access-in resource to base station transmit initial number it is believed that
Breath；The primary data information includes the report of corresponding upstream data, customer equipment identification and follow-up data；The follow-up number
It was reported that the information including subsequently whether needing to transmit upstream data, and when it is follow-up need transmission upstream data when, it is follow-up on
The information of the data volume of row data；Receiving unit, is suitable to receive the base station and is receiving the primary data information and correct
The feedback information sent during the primary data information for parsing the user equipment transmission；When follow-up data report includes
When needing to carry out the information of subsequent upstream transmission, the feedback information includes the scheduling configured information of subsequent upstream data transfer；
Second transmitting element, is suitable to, based on the scheduling configured information acquired from the feedback information, carry out subsequent upstream data
Transmission.
Alternatively, the scheduling resource pond of exempting from includes time-frequency physical resource and multiple access access-in resource.
Alternatively, the multiple access access-in resource includes code book, code word, sequence, interleaver, the mapping method of interleaver, solution
Adjust at least one of reference signal, lead code, spatial domain resource and power domain resource.
Alternatively, the primary data information is sent using data volume less than the packet of predetermined threshold value, and uses low order
Code modulating method carries out coded modulation.
Alternatively, the predetermined threshold value determines according to system requirements.
Alternatively, the scheduling configured information includes the configuration information for exempting to dispatch multi-access resource.
Alternatively, second transmitting element, is adapted in use to dispatch exempting from indicated by configured information and dispatches multi-access resource, to
Transmit subsequent upstream data in base station.
Alternatively, the scheduling configured information includes the corresponding scheduling authorization information of subsequent upstream data transfer.
Alternatively, second transmitting element, is suitable to according to the scheduling authorization information, under the scheduling of the base station to
Transmit subsequent upstream data in base station.
Alternatively, the user equipment also includes：Transmitting element is retried, is suitable to described when not received within the default time
During the feedback information that base station sends, from it is described exempt from scheduling resource pond in randomly select and exempt from scheduling access-in resource again to described
Transmit the primary data information in base station.
The embodiment of the present invention additionally provides a kind of base station, including：Blind check unit, is suitable to exempt to dispatch access-in resource to default
Pond carries out blind check；Resolution unit, is suitable to when the primary data information of user device transmissions is detected, to the initial number it is believed that
Breath is parsed；The primary data information include corresponding upstream data, demodulated reference signal, customer equipment identification and after
The information of continuous data report；The follow-up data report includes whether to need the information of subsequent transmission upstream data, and ought need
The information of the data volume of subsequent upstream data when wanting subsequent transmission upstream data；Feedback unit, being suitable to work as ought correctly parse institute
When stating the primary data information of user equipment transmission, corresponding feedback information is sent to the user equipment；When the follow-up number
It was reported that when including needing to carry out the information of subsequent upstream transmission, the feedback information includes the tune of subsequent upstream data transfer
Degree configured information.
Alternatively, the scheduling resource pond of exempting from includes time-frequency physical resource and multiple access access-in resource.
Alternatively, the multiple access access-in resource includes code book, code word, sequence, interleaver, the mapping method of interleaver, solution
Adjust at least one of reference signal, lead code, spatial domain resource and power domain resource.
Alternatively, packet of the primary data information using data volume less than predetermined threshold value, and using low order coding
Modulator approach carries out coded modulation.
Alternatively, the predetermined threshold value determines according to system requirements.
Alternatively, the follow-up data report includes whether to need the information of subsequent transmission upstream data, and when needs
During subsequent transmission upstream data, the information of the data volume of subsequent upstream data.
Alternatively, the scheduling configured information includes exempting from the configuration information or subsequent upstream data transfer of dispatching multi-access resource
Corresponding scheduling authorization information.
Compared with prior art, the technical scheme of the embodiment of the present invention has the advantages that：
Above-mentioned scheme, user equipment is when needing to carry out transmitting uplink data, it is possible to use communication system is pre-configured with
Exempting from scheduling resource pond of exempting from dispatch access-in resource and carry out the transmission of primary data information, while data transfer is realized with
Connection is set up in base station, can save user equipment and be changed from Idle state to the signaling consumption of the connected state that can send upstream data
And reduce data transmission delay；Meanwhile, include whether to need in the primary data information to carry out subsequent upstream data transfer with
And the information of the data volume of subsequent upstream transmission when needing subsequent upstream transmission so that base station can pass for subsequent upstream data
Transmission ＆ distribution put corresponding scheduling configured information, such that it is able to be based on the scheduling configured information, subsequent upstream data are transmitted to base station,
Resource contention can be avoided, the reliability of transmitting uplink data is improved.
Further, small data packets of the primary data information that user equipment sends using data volume less than predetermined threshold value,
And coded modulation is carried out using low order code modulation mode, the reliability of initial data transfer can be improved, such that it is able to improve
The reliability being connected is set up with cell by the primary data information transfer.
Further, base station can be the subsequent upstream data transfer configuration correspondence of user equipment according to the demand of system
Scheduling configured information, can be according to the demand of system for user device configuration second type exempt from scheduling data transmission method
Or the uplink data transmission method based on scheduling, the flexibility of the transmission of subsequent upstream data can be improved.
Brief description of the drawings
Fig. 1 is a kind of flow chart of data transmission method of the embodiment of the present invention；
Fig. 2 is the flow chart of another data transmission method of the embodiment of the present invention；
Fig. 3 is a kind of flow chart of 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 uplink data transmission method based on scheduling (grant-based) in LTE, general many uses
Orthogonal access mode, simple with receiver, reliability is high, the advantages of link adaptation is strong.However, user equipment is entering
Need to be set up by random access procedure and cell first before row transmitting uplink data and be connected and obtain scheduling authorization from base station side,
Thus substantial amounts of Signalling exchange will be produced between base station and user equipment, heavier load overhead and time delay will be brought, by
For packet services, ineffective systems are there are.
Packet services in 5G be able to can be used just using based on the ascending transmission method for exempting from scheduling (grant-free)
Hand over multiple access and non-orthogonal multiple to access two ways, user equipment when there is transmitting uplink data demand, without from base station dynamic
Schedule information is obtained, the transmission of upstream data can be directly carried out on scheduling resource is exempted from.Relatively based on the transmission method dispatched
Speech, effectively saves signaling consumption and reduces time delay, improves the utilization rate of resource.But, the method is due to lacking dynamic
Schedule information is indicated, and multiple user equipmenies may exempt from scheduling resource using identical carries out uplink, increased generation resource
The probability of collision, causes transmission reliability to reduce.Meanwhile, have no way of knowing which user equipment exempt from scheduling money using in advance because of base station
Source sends data, is not also understood, it is necessary to carry out blind check yet for sending the customer equipment identification of upstream data when data are received.
Meanwhile, based on the ascending transmission method for exempting from scheduling poor, the hybrid automatic repeat-request (Hybrid that also there is link adaptation
Automatic Repeat reQuest, HARQ) realize difficulty problem.
Above-mentioned to solve the problems, such as, the embodiment of the present invention is by the way that when needing to carry out transmitting uplink data, user equipment exists
The random selection in scheduling resource pond of exempting from of the unification that communication system is pre-configured with is exempted from scheduling access-in resource and carries out primary data information
Transmission, set up with base station while data transfer is realized and be connected, user equipment can be saved and changed to can be with from Idle state
Carry out the signaling consumption of the connected state of transmitting uplink data and reduce data transfer delay；Meanwhile, in the primary data information
The data volume of subsequent upstream transmission when including whether to need to carry out subsequent upstream data transfer and need subsequent upstream transmission
Information so that base station can configure corresponding scheduling configured information for subsequent upstream data transfer, described such that it is able to be based on
Scheduling configured information, subsequent upstream data are transmitted to base station, can avoid resource contention, improve the reliability of transmitting uplink data
Property.
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 data transmission method for uplink in the embodiment of the present invention.Referring to Fig. 1, the present invention is implemented
Data transmission method for uplink in example can include the steps：
Step S101：When needing to carry out transmitting uplink data, it is default exempt from scheduling resource pond in random selection exempt from adjust
Degree access-in resource transmits primary data information to base station.
In this specific implementation, exempt from scheduling resource pond for communication system is pre-configured with, and known to user equipment and base station.
Step S102：The base station is received to receive the primary data information and correctly parsing the user equipment
The feedback information sent during the primary data information of transmission.
In specific implementation, whether the information for carrying out subsequent upstream data transfer in follow-up data report is different,
The feedback information that base station sends is also by difference.Specifically, when the primary data information that user equipment is sent to base station includes being not required to
When carrying out the information of subsequent upstream data transfer, feedback information transmitted by base station only includes ACK and customer equipment identification
Information, namely feedback information is in the form of form I；When user equipment be sent to base station primary data information include need into
During the information of the data volume of row subsequent upstream data transfer and subsequent upstream data, the feedback information transmitted by base station is not only wrapped
The information of ACK and customer equipment identification is included, also including the corresponding scheduling configured information of subsequent upstream data, i.e., feedback information is used
The form of form II.
Step S103：Based on the scheduling configured information acquired from the feedback information, subsequent upstream data are carried out
Transmission.
In specific implementation, user equipment can be with when also needing to transmit data to base station after primary data information, just
Scheduling configured information in feedback information according to transmitted by base station transmits follow-up upstream data to base station, can avoid resource
Collision, improves the reliability of data transfer.
Referring to Fig. 2, accordingly, concrete operations of the base station during the uplink data transmission method shown in Fig. 1 can be wrapped
Include：
Step S201：Blind check is carried out to default scheduling access-in resource pond of exempting from.
Step S202：When the primary data information of user device transmissions is detected, the primary data information is carried out
Parsing.
Step S203：When the primary data information that the user equipment sends correctly is parsed, to the user equipment
Send corresponding feedback information.
In specific implementation, when follow-up data report includes needing to carry out the information of subsequent upstream transmission, institute
State scheduling configured information of the feedback information including subsequent upstream data transfer.
Above-mentioned scheme, user equipment is when needing to carry out transmitting uplink data, it is possible to use communication system is pre-configured with
Exempting from scheduling resource pond of exempting from dispatch access-in resource and carry out the transmission of primary data information, because the dynamic for not needing base station is adjusted
Degree, can save user equipment and be changed to the signaling consumption that can carry out transmitting uplink data from Idle state and reduce data transfer
Postpone；Meanwhile, include whether to need to carry out subsequent upstream data transfer in the primary data information and need subsequent upstream
The information of the data volume of subsequent upstream transmission during transmission so that base station can configure corresponding tune for subsequent upstream data transfer
Degree configured information, such that it is able to be based on the scheduling configured information, subsequent upstream data is transmitted to base station, and resource can be avoided to rush
It is prominent, improve the reliability of transmitting uplink data.
The data transmission method in the embodiment of the present invention will be further described in detail below.
Fig. 3 shows a kind of flow chart of the data transmission method in the embodiment of the present invention.Referring to Fig. 3, the present invention is implemented
Data transmission method in example, is suitable to user equipment and transmits upstream data to base station, can specifically include the steps：
Step S301：When transmitting uplink data is carried out, the user equipment exempts to be selected at random in scheduling resource pond described
Select and exempt from scheduling access-in resource to base station transmission primary data information.
In specific implementation, exempt from scheduling resource pond and be pre-configured with by communication system, and exempt to exempt from scheduling in scheduling resource pond
Access-in resource includes time-frequency physical resource and multiple access access-in resource.Wherein, multiple access access-in resource is that 5G non-orthogonal multiples access money
Source, it can include code book, code word, sequence, interleaver, the mapping method of interleaver, demodulated reference signal, lead code, spatial domain
At least one of resource and power domain resource.Base station and user equipment know that what communication system configured exempts from scheduling resource pond in advance
Information.When needing to carry out transmitting uplink data, the user equipment in Idle state directly can be matched somebody with somebody in 5G communication systems
Exempting from of putting randomly selects one or more in scheduling resource pond and exempts from scheduling access-in resource transmission primary data information, namely and base station
Carry out data transfer first.
In specific implementation, user equipment send primary data information include customer equipment identification, upstream data and after
Continuous data report.Wherein, the customer equipment identification is used to identify the identity of the user equipment for sending primary data information, and it can
Think in LTE system the identity of S- temporarily moved subscribers (S-Temporary Mobile Subscriber Identity,
S-TMSI) or other customer equipment identification, the predefined body for being capable of unique mark user equipment such as in 5G communication systems
Mark of part information etc., the present invention is not limited herein.Follow-up data report for base station show primary data information it
Afterwards, whether user equipment needs to continue to send upstream data, and the subsequent upstream data when needing to continue to send upstream data
Data volume information, to allow base station for the corresponding resource of user equipment allocation, to transmit follow-up upstream data.
In an embodiment of the present invention, in order to improve the reliability of primary data information transfer, user equipment in transmission just
During beginning data message, the small data packets mode using data volume less than predetermined threshold value, and the code modulation mode for using is low order
Code modulation mode, to improve the reliability of primary data information transmission, such that it is able to improve user equipment by initial number
It is believed that breath sets up the reliability being connected with base station (cell).
Step S302：The base station carries out blind check to the scheduling resource pond of exempting from, to blind check to primary data information enter
Row parsing, and when the primary data information that the user equipment sends correctly is parsed, correspondence is sent to the user equipment
Feedback information.
In specific implementation, when primary data information transfer is carried out, the uplink transmission resource that user equipment is used is
Exempt from exempting from scheduling resource pond and dispatch access-in resource, base station is simultaneously unaware of which which user equipment exempt to dispatch access-in resource using
Upstream data is sent, therefore, base station needs the scheduling resource pond of exempting from configured to system to carry out blind check, to receive user in time
The primary data information that equipment sends.
When the primary data information that user equipment sends is detected by blind check, base station to the initial number that detects it is believed that
Breath is parsed, to obtain the information that the customer equipment identification in primary data information, upstream data and follow-up data are reported.Its
In, when base station successfully parses above- mentioned information from the primary data information for being received, just can be in primary data information
The corresponding user equipment of customer equipment identification send corresponding feedback information, at the beginning of alloing that corresponding user equipment is known
Whether the transmission of beginning data message succeeds.Wherein, when base station determines that user equipment is needed initial by parsing follow-up data and reporting
When continuing to transmit upstream data after data message, base station is to the feedback information that user equipment sends for feedback information uses form
II；Conversely, then using the feedback information using form I.
In specific implementation, base station connects at random in can using LTE system to the mode of user equipment send feedback information
The feedback method of accidental access response (Random Access Response, RAR) during entering, or LTE can also be used
Physical mixed automatic re-transmission indicating channel (Physical Hybrid ARQ Indicator Channel, PHICH) in system
Feed back etc., those skilled in the art can be configured according to the actual needs, the present invention is not limited.
Step S303：The user equipment judges whether the feedback information of base station transmission is received in Preset Time；When
Judged result is that when being, can perform step S304；Conversely, step S307 can be performed.
In specific implementation, the duration of the Preset Time can be set according to the actual needs, its initial time
Can be when primary data information be sent completely.
Step S304：The user equipment judges that received feedback information is the feedback information or form II of form I
Feedback information；When it is determined that the feedback information for being received is the feedback information of form I, step 305 can be performed；Conversely, then
Step 306 can be performed.
Step S305：The user equipment terminates this data is activation.
In specific implementation, the user equipment receives the feedback information of the form I of base station transmission in Preset Time, i.e.,
When feedback information only includes ACK and customer equipment identification information, it may be determined that base station is successfully received primary data information, and nothing
Subsequent upstream data is activation.Now, user equipment can terminate the transmission process of this secondary data.
Step S306：The user equipment parses corresponding scheduling configured information from the feedback information for being received, and
Based on the scheduling configured information that parsing is obtained, subsequent upstream data are transmitted to base station.
In specific implementation, user equipment receives the feedback information of base station transmission within the default time, and determines institute
Not only include ACK and the user identity information of itself in the feedback information of reception, the scheduling also including subsequent data transmission is indicated
Can determine during information, the i.e. feedback information of form II primary data information send successfully and have subsequent upstream data need continue
Transmission.Now, user equipment can carry out the biography of subsequent upstream data under the instruction of the scheduling configured information that parsing is obtained
It is defeated.
In an embodiment of the present invention, the corresponding transfer resource of scheduling configured information that base station is configured in feedback information
For exempt from 5G scheduled transmission mechanism type II exempt from dispatch access-in resource, namely user equipment is in subsequent upstream data transfer when institute
What is used exempts to dispatch access-in resource for base station is pre-configured with or communication system pre-sets.Using exempting from scheduled transmission mechanism class
The scheduling access-in resource of exempting from of type II carries out the transmission of upstream data, user equipment can be avoided to exempt from scheduling using identical and access money
Follow-up upstream data is transmitted in source, thus can improve the reliability of subsequent upstream data transfer.
In an alternative embodiment of the invention, the scheduling configured information that base station is configured in feedback information is to carry out on follow-up
The scheduling authorization information that row data transfer is carried out, namely user equipment carries out subsequent upstream data transfer under the scheduling of base station,
Because base station side can be received and decoded in respective resources to the data that scheduled user equipment sends, thus can reduce
The reliability of Receiver Complexity and raising subsequent upstream data transfer.
Step S307：From it is described exempt from scheduling resource pond in randomly select exempt from scheduling access-in resource again to the base station send
The primary data information.
In specific implementation, when user equipment does not receive the feedback information of base station transmission in Preset Time, show
Primary data information sends failure.Now, during what user equipment can be configured from communication system exempt from scheduling resource pond again with
Machine selects one or more random access resources, to send primary data information to base station again, namely since step S301
Perform, until by base station send feedback information determine primary data information send successfully or number of retransmissions reach it is default
Threshold value.
The above-mentioned data transmission method in the embodiment of the present invention is described in detail, below by above-mentioned method
Corresponding device is described.
Fig. 4 shows a kind of result of the user equipment in the embodiment of the present invention.Referring to Fig. 4, in the embodiment of the present invention
A kind of user equipment 400 can include the first transmitting element 401, the transmitting element 403 of receiving unit 402 and second, wherein：
First transmitting element 401, is suitable to when needing to carry out transmitting uplink data, it is default exempt from scheduling resource pond in
Machine selection exempts from scheduling access-in resource to base station transmission primary data information；The primary data information includes corresponding upper line number
Reported according to, customer equipment identification and follow-up data；Whether the follow-up data report includes subsequently needing to transmit upstream data
Information, and when transmission upstream data is subsequently needed, the information of the data volume of subsequent upstream data；
In specific implementation, the primary data information is sent using data volume less than the packet of predetermined threshold value, and is adopted
Coded modulation is carried out with low order code modulating method, to improve the reliability of primary data information transmission, and then use can be improved
Family equipment sets up the reliability being connected by initial data transfer with base station.Wherein described predetermined threshold value and low order coded modulation side
Method can according to the actual needs be set by communication system, and the present invention is not limited herein.
In specific implementation, the scheduling resource pond of exempting from can include time-frequency physical resource and multiple access access-in resource.Wherein,
The multiple access access-in resource includes code book, code word, sequence, interleaver, the mapping method of interleaver, demodulated reference signal, leading
At least one of code, spatial domain resource and power domain resource.
Receiving unit 402, is suitable to receive the base station and is receiving the primary data information and correctly parsing described
The feedback information sent during the primary data information that user equipment sends；After follow-up data report includes that needs are carried out
During the information of continuous uplink, the feedback information includes the scheduling configured information of subsequent upstream data transfer.
Second transmitting element 403, is suitable to based on the scheduling configured information acquired from the feedback information, after carrying out
Continuous transmitting uplink data.
In an embodiment of the present invention, the scheduling configured information includes the configuration information for exempting to dispatch multi-access resource；It is described
Second transmitting element 403, is adapted in use to dispatch exempting from indicated by configured information and dispatches multi-access resource, and subsequent upstream is transmitted to base station
Data.
In an alternative embodiment of the invention, the scheduling configured information includes that the corresponding scheduling of subsequent upstream data transfer is awarded
Power information；Second transmitting element 403, is suitable to according to the scheduling authorization information, to base station under the scheduling of the base station
Transmission subsequent upstream data.
In specific implementation, the user equipment 400 can also include retrying transmitting element 404, wherein：
Transmitting element 404 is retried, is suitable to when the feedback information that the base station transmission is not received within the default time
When, from it is described exempt from scheduling resource pond in randomly select exempt from scheduling access-in resource transmit the initial number to the base station again it is believed that
Breath.
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, resolution unit 502 and feedback unit 503, wherein：
Blind check unit 501, is suitable to carry out blind check to default scheduling access-in resource pond of exempting from.
Resolution unit 502, is suitable to when the primary data information of user device transmissions is detected, to the initial number it is believed that
Breath is parsed；The primary data information includes the report of corresponding upstream data, customer equipment identification and follow-up data
Information；The follow-up data report includes whether to need the information of subsequent transmission upstream data, and ought need in subsequent transmission
The information of the data volume of subsequent upstream data during row data.
Feedback unit 503, is suitable to when the primary data information that the user equipment sends correctly is parsed, to the use
Family equipment sends corresponding feedback information；When follow-up data report includes the information for needing to carry out subsequent upstream transmission
When, the feedback information includes the scheduling configured information of subsequent upstream data transfer.
In specific implementation, the scheduling resource pond of exempting from can include time-frequency physical resource and multiple access access-in resource.Wherein,
The multiple access access-in resource includes code book, code word, sequence, interleaver, the mapping method of interleaver, demodulated reference signal, leading
At least one of code, spatial domain resource and power domain resource.
In specific implementation, the primary data information is sent using data volume less than the packet of predetermined threshold value, and is adopted
Coded modulation is carried out with low order code modulating method, to improve the reliability of primary data information transmission, and then use can be improved
Family equipment sets up the reliability being connected by initial data transfer with base station.
In specific implementation, the scheduling configured information includes the configuration information or subsequent upstream number exempting to dispatch multi-access resource
According to corresponding scheduling authorization information is transmitted, so as to obtain user equipment can be connect using the scheduling of exempting from for exempting from scheduled transmission mechanism type II
Enter resource or the transmission of subsequent upstream data is carried out under the scheduling of base station, to improve the reliability of subsequent upstream data transfer
Property.
Using the such scheme in the embodiment of the present invention, user equipment can make when needing to carry out transmitting uplink data
The exempting from scheduling resource pond of exempting from being pre-configured with communication system is dispatched access-in resource and carries out the transmission of primary data information, can be with
Set up with base station while realizing data transfer and be connected, user equipment can saved and changed to up biography can be carried out from Idle state
Defeated signaling consumption simultaneously reduces data transmission delay；Meanwhile, include whether that needs are carried out on follow-up in the primary data information
The information of the data volume of row data transfer and subsequent upstream transmission when needing subsequent upstream transmission so that after base station can be
Continuous transmitting uplink data configures corresponding scheduling configured information, such that it is able to be based on the scheduling configured information, is transmitted to base station
Subsequent upstream data, can avoid resource contention, such that it is able to improve the reliability of transmitting uplink data.
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 (34)
1. a kind of data transmission method, it is characterised in that including：
When needing to carry out transmitting uplink data, it is default exempt from scheduling resource pond in random selection exempt from scheduling access-in resource to base
Stand and transmit primary data information；The primary data information includes corresponding upstream data, customer equipment identification and follow-up number
It was reported that；Whether the follow-up data report includes the follow-up information for needing to transmit upstream data, and ought subsequently need transmission
During upstream data, the information of the data volume of subsequent upstream data；
Receive what the base station sent when receiving the primary data information and correctly parsing the primary data information
Feedback information；When follow-up data report includes needing to carry out the information of subsequent upstream transmission, the feedback information bag
Include the scheduling configured information of subsequent upstream data transfer；
Based on the scheduling configured information acquired from the feedback information, subsequent upstream data transfer is carried out.
2. data transmission method according to claim 1, it is characterised in that the scheduling resource pond of exempting from includes time-frequency physics
Resource and multiple access access-in resource.
3. data transmission method according to claim 2, it is characterised in that the multiple access access-in resource includes code book, code
In word, sequence, interleaver, the mapping method of interleaver, demodulated reference signal, lead code, spatial domain resource and power domain resource extremely
Few one kind.
4. data transmission method according to claim 1, it is characterised in that the primary data information is small using data volume
Sent in the small data packets of predetermined threshold value, and coded modulation is carried out using low order code modulating method.
5. data transmission method according to claim 4, it is characterised in that the predetermined threshold value is true according to system requirements
It is fixed.
6. data transmission method according to claim 1, it is characterised in that the scheduling configured information includes exempting from scheduling many
The configuration information of location resource.
7. data transmission method according to claim 6, it is characterised in that described based on being parsed in the feedback information
The scheduling configured information for arriving, carries out subsequent upstream data transfer, including：
Multi-access resource is dispatched using exempting from indicated by scheduling configured information, subsequent upstream data are transmitted to base station.
8. data transmission method according to claim 1, it is characterised in that the scheduling configured information includes subsequent upstream
The corresponding scheduling authorization information of data transfer.
9. data transmission method according to claim 8, it is characterised in that described based on being parsed in the feedback information
The scheduling configured information for arriving, carries out subsequent upstream data transfer, including：
According to the scheduling authorization information, subsequent upstream data are transmitted to base station under the scheduling of the base station.
10. data transmission method according to claim 6, it is characterised in that described when not received within the default time
During the feedback information that base station sends, also include：
From it is described exempt from scheduling resource pond in randomly select and exempt from scheduling access-in resource and transmit the primary data to the base station again
Information.
A kind of 11. data transmission methods, it is characterised in that including：
Blind check is carried out to default scheduling access-in resource pond of exempting from；
When the primary data information of user device transmissions is detected, the primary data information is parsed；It is described initial
Data message includes the information of corresponding upstream data, customer equipment identification and follow-up data report；The subsequent datagrams
Announcement includes whether to need the information of subsequent transmission upstream data, and the subsequent upstream data when subsequent transmission upstream data is needed
Data volume information；
When the primary data information that the user equipment sends correctly is parsed, corresponding feedback is sent to the user equipment
Information；When follow-up data report includes needing to carry out the information of subsequent upstream transmission, after the feedback information includes
The scheduling configured information of continuous transmitting uplink data.
12. data transmission methods according to claim 11, it is characterised in that the scheduling resource pond of exempting from includes time-frequency thing
Reason resource and multiple access access-in resource.
13. data transmission methods according to claim 12, it is characterised in that the multiple access access-in resource include code book,
In code word, sequence, interleaver, the mapping method of interleaver, demodulated reference signal, lead code, spatial domain resource and power domain resource
It is at least one.
14. data transmission methods according to claim 11, it is characterised in that the primary data information uses data volume
Less than the small data packets of predetermined threshold value, and coded modulation is carried out using low order code modulating method.
15. data transmission methods according to claim 11, it is characterised in that the predetermined threshold value is true according to system requirements
It is fixed.
16. data transmission methods according to claim 11, it is characterised in that the follow-up data report includes whether to need
The information of subsequent transmission upstream data is wanted, and when subsequent transmission upstream data is needed, the data volume of subsequent upstream data
Information.
17. data transmission methods according to claim 11, it is characterised in that the scheduling configured information includes exempting from scheduling
The corresponding scheduling authorization information of configuration information or subsequent upstream data transfer of multi-access resource.
A kind of 18. user equipmenies, it is characterised in that including：
First transmitting element, is suitable to when needing to carry out transmitting uplink data, it is default exempt from scheduling resource pond in randomly choose
Exempt from scheduling access-in resource and transmit primary data information to base station；The primary data information includes corresponding upstream data, use
Family device identification and follow-up data are reported；Whether the follow-up data report includes the follow-up information for needing to transmit upstream data,
And when transmission upstream data is subsequently needed, the information of the data volume of subsequent upstream data；
Receiving unit, is suitable to receive the base station and is receiving the primary data information and correctly parsing the primary data
The feedback information sent during information；When follow-up data report includes needing to carry out the information of subsequent upstream transmission, institute
State scheduling configured information of the feedback information including subsequent upstream data transfer；
Second transmitting element, is suitable to, based on the scheduling configured information acquired from the feedback information, carry out subsequent upstream
Data transfer.
19. user equipmenies according to claim 18, it is characterised in that the scheduling resource pond of exempting from provides including time-frequency physics
Source and multiple access access-in resource.
20. user equipmenies according to claim 19, it is characterised in that the multiple access access-in resource include code book, code word,
At least one in sequence, interleaver, the mapping method of interleaver, demodulated reference signal, lead code, spatial domain resource and power domain resource
Kind.
21. user equipmenies according to claim 18, it is characterised in that the primary data information is less than using data volume
The packet of predetermined threshold value sends, and carries out coded modulation using low order code modulating method.
22. user equipmenies according to claim 21, it is characterised in that the predetermined threshold value determines according to system requirements.
23. user equipmenies according to claim 18, it is characterised in that the scheduling configured information includes exempting to dispatch multiple access
The configuration information of resource.
24. user equipmenies according to claim 23, it is characterised in that second transmitting element, are adapted in use to scheduling
Exempting from indicated by configured information dispatches multi-access resource, and subsequent upstream data are transmitted to base station.
25. user equipmenies according to claim 18, it is characterised in that the scheduling configured information includes subsequent upstream number
According to the corresponding scheduling authorization information of transmission.
26. user equipmenies according to claim 25, it is characterised in that second transmitting element, are suitable to according to described
Scheduling authorization information, subsequent upstream data are transmitted under the scheduling of the base station to base station.
27. user equipmenies according to claim 23, it is characterised in that also include：Transmitting element is retried, is suitable to when pre-
If time in when not receiving the feedback information that the base station sends, from it is described exempt from scheduling resource pond in randomly select and exempt to adjust
Degree access-in resource transmits the primary data information to the base station again.
A kind of 28. base stations, it is characterised in that including：
Blind check unit, is suitable to carry out blind check to default scheduling access-in resource pond of exempting from；
Resolution unit, is suitable to, when the primary data information of user device transmissions is detected, carry out the primary data information
Parsing；The primary data information includes the information of corresponding upstream data, customer equipment identification and follow-up data report；Institute
Follow-up data report is stated to include whether to need the information of subsequent transmission upstream data, and when subsequent transmission upstream data is needed
The information of the data volume of subsequent upstream data；
Feedback unit, is suitable to when the primary data information that the user equipment sends correctly is parsed, to the user equipment
Send corresponding feedback information；It is described when follow-up data report includes needing to carry out the information of subsequent upstream transmission
Feedback information includes the scheduling configured information of subsequent upstream data transfer.
29. base stations according to claim 28, it is characterised in that it is described exempt from scheduling resource pond including time-frequency physical resource and
Multiple access access-in resource.
30. base stations according to claim 29, it is characterised in that the multiple access access-in resource includes code book, code word, sequence
At least one in row, interleaver, the mapping method of interleaver, demodulated reference signal, lead code, spatial domain resource and power domain resource
Kind.
31. base stations according to claim 28, it is characterised in that the primary data information is using data volume less than default
The packet of threshold value, and coded modulation is carried out using low order code modulating method.
32. base stations according to claim 28, it is characterised in that the predetermined threshold value determines according to system requirements.
33. base stations according to claim 28, it is characterised in that the follow-up data report includes whether to be resumed after needing
The information of defeated upstream data, and when subsequent transmission upstream data is needed, the information of the data volume of subsequent upstream data.
34. base stations according to claim 28, it is characterised in that the scheduling configured information includes exempting to dispatch multi-access resource
Configuration information or the corresponding scheduling authorization information of subsequent upstream data transfer.
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