CN108242970A - The feedback method and equipment of unlicensed transmission based on resource units - Google Patents

The feedback method and equipment of unlicensed transmission based on resource units Download PDF

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Publication number
CN108242970A
CN108242970A CN201611214954.8A CN201611214954A CN108242970A CN 108242970 A CN108242970 A CN 108242970A CN 201611214954 A CN201611214954 A CN 201611214954A CN 108242970 A CN108242970 A CN 108242970A
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China
Prior art keywords
feedback
upstream data
data
user terminal
information
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Granted
Application number
CN201611214954.8A
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Chinese (zh)
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CN108242970B (en
Inventor
晁华
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Nokia Shanghai Bell Co Ltd
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Nokia Shanghai Bell Co Ltd
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Priority to CN201611214954.8A priority Critical patent/CN108242970B/en
Priority to PCT/IB2017/001723 priority patent/WO2018122609A2/en
Publication of CN108242970A publication Critical patent/CN108242970A/en
Application granted granted Critical
Publication of CN108242970B publication Critical patent/CN108242970B/en
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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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • 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
    • 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
    • H04L1/1657—Implicit acknowledgement of correct or incorrect reception, e.g. with a moving window
    • 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
    • H04L1/1806—Go-back-N protocols
    • 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
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1887—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

The invention discloses a kind of feedback method and equipment of the unlicensed transmission based on resource units, which includes：Network side equipment receives the upstream data sent in the resource units for unlicensed transmission from least one user terminal and carries out data processing to upstream data；According to the data processed result, with sending feedback information on the corresponding feedback resources for unlicensed transmission feedback of the resource units for unlicensed transmission.This method propose the feedbacks based on resource units, can effectively reduce feedback signaling overhead, and by rapid feedback and can retransmit merging effectively combined use, improve feedback efficiency, improve re-transmission and merge success rate.

Description

The feedback method and equipment of unlicensed transmission based on resource units
Technical field
The present invention relates to wireless communication field, more particularly, in the field of wireless communication based on resource units The feedback method and equipment of unlicensed transmission.
Background technology
In the new research projects about new radio open access technology of 3GPP 5G, based on unlicensed (grant- Free) the uplink non-orthogonal multiple access technology of form is characterized in that, the uplink of UE does not need to come from gNB (5G bases Stand) dynamic or dominant scheduling grant, i.e., unlicensed transmission.Multiple user terminals (UE) can share identical time and frequency Rate resource.3GPP will further be studied in following field：
--- the processing of the potential collision of multiple access signature (MA signatures)；
--- re-transmission/repetition and potential merging, such as hybrid automatic repeat request (HARQ).
In 3GPP motions, it is proposed that the scheme of the unlicensed transmission of 1 step and 2 steps, as shown in Figure 1.In the present specification, Feedback applied to unlicensed transmission is known as unlicensed feedback, and the Fast HARQ feedback of unlicensed transmission can be applied to the transmission of 1 step Process, i.e., if network side equipment such as transmits receiving point (TRP:Transmission Reception Point) decoding lead code Afterwards, UE can just be fed back to before data decoding.However, several the technical issues of retransmitting in design, need to solve below：
1. some UE how to be allowed to know that the HARQ feedback for carrying out automatic network is intended for oneself
2. how to design the feedback signaling to UE and reduce signaling overheads and delay
It arranges to retransmit 3. how for possible HARQ to merge
For above-mentioned first problem, in the prior art such as LTE or lte-a system, HARQ feedback is for UE HARQ feedback in each feedback information, carries the information of UE, and UE each in this way, which can be detected, is sent to the HAQR of oneself Feedback.But to unlicensed transmission, multiple UE can share identical running time-frequency resource for uplink.If TRP gives each UE Distribute independent PHICH (physics HARQ indicator channel) feedback informations independent in other words, then signaling overheads will be very It is high.
For Second Problem, the prior art transmits rapid feedback applied to 1 step, however lead code ID is also contained in instead It is used to indicate which lead code TRP detects in feedback signaling, signaling overheads is also very high.In 2 step transmission plans, lead code ID and User ID must be all separately contained in indicate which lead code UE detects in feedback signaling, the user data quilt of which UE It is properly received, signaling overheads is equally very high.
For third problem, in existing 3GPP motions R1-1609783, " transmission of the unlicensed uplinks of mMTC ", It proposes and constant offset is set between retransmitting and transmitting for the first time, merge for reaching HARQ.However, this scheme is also required to independence Lead code feedback and data feedback, cause signaling overheads very high.1 step is transmitted, at all without this scheme；Specifically this side Case does not account for impact conditions, and under some cases of 1 step transmission, such as difference UE sends difference on identical running time-frequency resource Lead code, and TRP cannot correctly to data decode, then have constant offset all UE re-transmission can all send raw collision, It can not achieve HARQ merging.
Invention content
For unlicensed transmission, the present invention breaches the Feedback Design based on UE in the prior art, proposes in a creative way Based on resource units (RU:Resource Unit) Feedback Design.
According to the first aspect of the invention, a kind of feedback method of the unlicensed transmission based on resource units is provided, including：
Network side equipment receives sending in the resource units for unlicensed transmission from least one user terminal Upstream data；
The network side equipment carries out data processing to the upstream data；
The network side equipment according to the data processed result, with the resource units phase for unlicensed transmission Feedback information is sent on the corresponding feedback resources for unlicensed transmission feedback.
According to one embodiment of present invention, the upstream data includes the lead code and data of at least one user terminal Information；The network side equipment carries out data processing to the upstream data and includes preamble detection, and according to the inspection of lead code It surveys as a result, the network side equipment judges whether to need to be decoded data information, is decoded if necessary, the network Side apparatus is further decoded data information.
According to one embodiment of present invention, described according to data processed result, the network side equipment is used for described Feedback information is sent on the feedback resources of unlicensed transmission feedback to include：
When network side equipment carries out preamble detection to the upstream data, at least one lead code is detected, and into Work(decodes the data information of at least one user terminal, and network side equipment is in the feedback money for unlicensed transmission feedback Feedback information one is sent on source；
When network side equipment carries out preamble detection to upstream data, detect at least one lead code, and logarithm it is believed that Breath is decoded but the decoding data information that fails, and network side equipment is in the feedback resources for unlicensed transmission feedback Upper transmission feedback information two；
When network side equipment to upstream data carry out preamble detection, detect at least two lead codes, and network side Equipment judgement cannot be correctly decoded data information, and network side equipment is not decoded data information, is used for described Feedback information three is sent on the feedback resources of unlicensed transmission feedback；
When network side equipment to upstream data carry out preamble detection, fail to detect lead code, network side equipment is not right Data information is decoded, and feedback information four is sent on the feedback resources for unlicensed transmission feedback.
According to one embodiment of present invention, it is described when network side equipment is in transmission feedback information a period of time, also further hair Send the user's id information for being correctly decoded out data information.
According to one embodiment of present invention, the feedback information one is used to indicate in the resource list for unlicensed transmission Upstream data is sent on position and is correctly decoded out the user terminal of data information need not retransmit the upstream data, and for Upstream data is sent on the resource units of unlicensed transmission and is not correctly decoded out described in the user terminal re-transmission of data information Upstream data；Feedback information two is used to indicate the user terminal that upstream data is sent in the resource units for unlicensed transmission Retransmit the upstream data；Feedback information three is used to indicate sends upstream data in the resource units for unlicensed transmission User terminal retransmit the upstream data；Feedback information four is used to indicate to be sent in the resource units for unlicensed transmission The user terminal of upstream data retransmits the upstream data.
According to one embodiment of present invention, further, the feedback information one is additionally operable to instruction for unlicensed Upstream data is sent on the resource units of transmission and is not correctly decoded out the user terminal of data information with the side of constant offset Formula retransmits the upstream data；The feedback information two is additionally operable to indicate to send in the resource units for unlicensed transmission The user terminal of row data retransmits the upstream data in a manner of constant offset；Feedback information three is additionally operable to instruction for non- The user terminal that upstream data is sent on the resource units of allowed transport retransmits the upstream data in a manner of random back；Instead Feedforward information four is additionally operable to indicate to send the user terminal of upstream data in the resource units for unlicensed transmission to move back at random The mode kept away retransmits the upstream data.
According to one embodiment of present invention, when the network side equipment sends feedback information for the moment, network side equipment exists The set time offset of current subframe with receiving the upstream data sends feedback information one；It is fed back when network side equipment is sent During information two, network side equipment sends feedback information in the set time offset of the current subframe with receiving the upstream data Two；When the network side equipment sends feedback information three, network side equipment is in the next subframe for receiving the upstream data Send feedback information three；When network side equipment sends feedback information four, network side equipment is in the case where receiving the upstream data One subframe sends feedback information four.
According to one embodiment of present invention, the upstream data includes the data information of at least one user terminal；Institute It states network side equipment and data information, which decodes, to be referred to upstream data progress data processing, if network side equipment success The data information of at least one user terminal is decoded, network side equipment is in the feedback resources for unlicensed transmission feedback Upper transmission feedback information five；If the data information for carrying out user terminal, network side cannot be successfully decoded in the network side equipment Equipment sends feedback information six on the feedback resources for unlicensed transmission feedback；
According to one embodiment of present invention, further, the network side equipment is being received from least one user Before the upstream data sent in the resource units for unlicensed transmission of terminal, also receive whole from least one user The lead code at end, and carry out preamble detection.
According to one embodiment of present invention, if the network side equipment correctly detects lead code, the network side Equipment sends feedback information seven and the ID of the lead code detected, to indicate to be transmitted across the user terminal of the lead code ID Send the upstream data information.
According to one embodiment of present invention, it is described when network side equipment is when sending feedback information five, also further hair Send the user's id information for being correctly decoded out data information.
According to one embodiment of present invention, the feedback information five is used to indicate described is correctly decoded out data The user terminal of information need not retransmit the upstream data；Feedback information six is used to indicate in the resource list for unlicensed transmission The user terminal that upstream data is sent on position retransmits the upstream data.
According to one embodiment of present invention, the network side equipment is in the current subframe with receiving the upstream data When set time offset sends feedback information five or feedback information six；The network side equipment is before the user terminal is received Feedback information seven is sent in one feedback window of leading code.
According to the second aspect of the invention, a kind of feedback method of the unlicensed transmission based on resource units is provided, including：
User terminal sends upstream data in the resource units for unlicensed transmission；
It receives from network side equipment corresponding for unlicensed with the resource units for unlicensed transmission Transmit the feedback information sent on the feedback resources of feedback；
According to feedback information, user terminal retransmits the upstream data sent；Or it does not retransmit.
According to one embodiment of present invention, the upstream data includes lead code and data information.
According to one embodiment of present invention, if what user terminal received is feedback information one, the user terminal into One step detects whether to receive the User ID of oneself, if receiving the User ID of oneself, the user equipment is without retransmitting Operation；If not receiving the User ID of oneself, the user equipment retransmits institute in the resource units for unlicensed transmission State upstream data；
If what user terminal received is feedback information two, the user terminal is in the resource units for unlicensed transmission It is upper to retransmit the upstream data；
If what user terminal received is feedback information three, the user terminal is in the resource units for unlicensed transmission It is upper to retransmit the upstream data；
If what user terminal received is feedback information four, the user terminal is in the resource units for unlicensed transmission It is upper to retransmit the upstream data.
According to one embodiment of present invention, if what user terminal received is feedback information one, and do not receive oneself User ID, the user equipment is retransmitted in the resource units for unlicensed transmission in a manner of constant offset described Row data；
If what user terminal received is feedback information two, the user terminal is in the resource units for unlicensed transmission On the upstream data is retransmitted in a manner of constant offset；
If what user terminal received is feedback information three, the user terminal is in the resource units for unlicensed transmission On the upstream data is retransmitted in a manner of random back；
If what user terminal received is feedback information four, the user terminal is in the resource units for unlicensed transmission On the upstream data is retransmitted in a manner of random back.
According to one embodiment of present invention, the upstream data includes data information.
According to one embodiment of present invention, if what user terminal received is feedback information five, the user terminal into One step detects whether to receive the User ID of oneself, if receiving the User ID of oneself, the user equipment is without retransmitting Operation；If not receiving the User ID of oneself, the user equipment retransmits institute in the resource units for unlicensed transmission State upstream data；
If what user terminal received is feedback information six, the user equipment is in the resource units for unlicensed transmission It is upper to retransmit the upstream data.
According to one embodiment of present invention, the user terminal in the resource units for unlicensed transmission with fixation The mode of offset retransmits the upstream data.
According to one embodiment of present invention, the user terminal is sent in the resource units for unlicensed transmission Before row data, further include：
Send a lead code；
It receives from network side equipment to the feedback information of lead code.
According to one embodiment of present invention, if the user terminal receives feedback information seven, user terminal is into one It walks and detects whether to receive the lead code ID of oneself, if receiving the lead code ID of oneself, the user equipment is for non- The upstream data is sent on the resource units of allowed transport；If the lead code ID of oneself, the user equipment are not received Retransmit a lead code.
According to the third aspect of the invention we, a kind of network side equipment is provided, the network side equipment is used to carry out based on money The feedback of the unlicensed transmission of source unit, including：
Receiving unit, be configured for receiving from least one user terminal in the resource list for unlicensed transmission The upstream data sent on position；
Data processing unit is configured for carrying out data processing to the upstream data；
Feedback unit is configured for according to the data processed result, with the resource for unlicensed transmission Feedback information is sent on the corresponding feedback resources for unlicensed transmission feedback of unit.
According to one embodiment of present invention, the upstream data includes the lead code and data of at least one user terminal Information；The data processing unit includes preamble detection unit, is configured for preamble detection；The network side equipment is also Including judging unit, be configured for the testing result according to preamble detection unit, judge whether to need to data information into Row decoding；The data processing unit further includes data decoding unit, is configured for being decoded data information.
According to one embodiment of present invention, the feedback information that the feedback unit is sent is one of following：
When lead code detection unit detects at least one lead code, and data decoding unit is successfully decoded out at least one The data information of a user terminal, feedback unit send feedback information on the feedback resources for unlicensed transmission feedback One；
When lead code detection unit detects at least one lead code, and data decoding unit fails and decodes number It is believed that breath, feedback unit sends feedback information two on the feedback resources for unlicensed transmission feedback；
When lead code detection unit detects at least two lead codes, and judging unit judge cannot to data information into Row is correctly decoded, and data decoding unit is not decoded data information, and feedback unit is fed back described for unlicensed transmission Feedback resources on send feedback information three；
When lead code detection unit fails to detect lead code, data decoding unit is not decoded data information, instead It presents unit and sends feedback information four on the feedback resources for unlicensed transmission feedback.
According to one embodiment of present invention, the feedback unit is sending feedback information for the moment, is also further configured For sending the user's id information for being correctly decoded out data information.
According to one embodiment of present invention, the feedback information one is used to indicate in the resource list for unlicensed transmission Upstream data is sent on position and is correctly decoded out the user terminal of data information need not retransmit the upstream data, and for Upstream data is sent on the resource units of unlicensed transmission and is not correctly decoded out described in the user terminal re-transmission of data information Upstream data；Feedback information two is used to indicate the user terminal that upstream data is sent in the resource units for unlicensed transmission Retransmit the upstream data；Feedback information three is used to indicate sends upstream data in the resource units for unlicensed transmission User terminal retransmit the upstream data；Feedback information four is used to indicate to be sent in the resource units for unlicensed transmission The user terminal of upstream data retransmits the upstream data.
According to one embodiment of present invention, further, the feedback information one is additionally operable to instruction for unlicensed Upstream data is sent on the resource units of transmission and is not correctly decoded out the user terminal of data information with constant offset Mode retransmits the upstream data；The feedback information two is additionally operable to indicate to send in the resource units for unlicensed transmission The user terminal of upstream data retransmits the upstream data in a manner of constant offset；Feedback information three be additionally operable to instruction for The user terminal that upstream data is sent on the resource units of unlicensed transmission retransmits the upstream data in a manner of random back； Feedback information four is additionally operable to indicate to send the user terminal of upstream data in the resource units for unlicensed transmission with random The mode kept out of the way retransmits the upstream data.
According to one embodiment of present invention, when the feedback unit is configured for sending feedback information a period of time, feedback Unit is configured for sending feedback information one in the set time offset of the current subframe with receiving the upstream data；Work as institute State feedback unit be configured for send feedback information two when, feedback unit is configured for receiving the upstream data The set time offset of current subframe sends feedback information two；When the feedback unit is configured for sending feedback information three When, feedback unit is configured for sending feedback information three in the next subframe for receiving the upstream data；When the feedback When unit is configured for sending feedback information four, feedback unit is configured in the next height for receiving the upstream data Frame sends feedback information four.
According to one embodiment of present invention, the upstream data includes the data information of at least one user terminal；Institute It states data processing unit and is configured for data information decoding, if at least one use is successfully decoded out in the data processing unit The data information of family terminal, the feedback unit are configured for sending out on the feedback resources for unlicensed transmission feedback Send feedback information five；If the data information for carrying out user terminal, the feedback cannot be successfully decoded in the data processing unit Unit is configured for sending feedback information six on the feedback resources for unlicensed transmission feedback；
According to one embodiment of present invention, further, the receiving unit is configured for receiving from least Before the upstream data sent in the resource units for unlicensed transmission of one user terminal, also receive from least one The lead code of a user terminal, and be output to preamble detection unit and carry out preamble detection.
According to one embodiment of present invention, it is described anti-if the preamble detection unit correctly detects lead code Feedback unit is configured for sending feedback information seven and the ID of the lead code detected, to indicate to be transmitted across the lead code The user terminal of ID sends the upstream data information.
According to one embodiment of present invention, when the feedback unit is configured for sending feedback information five, also into one Step is configured for sending the user's id information for being correctly decoded out data information.
According to one embodiment of present invention, the feedback information five is used to indicate the data that are correctly decoded out and believes The user terminal of breath need not retransmit the upstream data；Feedback information six is used to indicate in the resource units for unlicensed transmission The upper user terminal for sending upstream data retransmits the upstream data.
According to one embodiment of present invention, the feedback unit is configured for receiving working as the upstream data When the set time offset of preceding subframe sends feedback information five or feedback information six；The feedback unit is configured for receiving Feedback information seven is sent in one feedback window of the lead code of the user terminal.
According to the fourth aspect of the invention, a kind of user terminal is provided, in the unlicensed transmission based on resource units Feedback, including：
Transmitting element is configured for sending upstream data in the resource units for unlicensed transmission；
Receiving unit, be configured for receiving from network side equipment with the resource units for unlicensed transmission The feedback information sent on the corresponding feedback resources for unlicensed transmission feedback；
Retransmission unit is configured for according to feedback information, and the upstream data sent is retransmitted；Or It does not retransmit.
According to one embodiment of present invention, the upstream data includes lead code and data information.
According to one embodiment of present invention, User ID detection unit is further included, is configured for when the receiving unit What is received is feedback information one, and the User ID detection unit is configured for detecting whether the User ID for receiving oneself, such as Fruit receives the User ID of oneself, and the retransmission unit is without retransmission operation；It is described if not receiving the User ID of oneself Retransmission unit is configured for retransmitting the upstream data in the resource units for unlicensed transmission；
If what the receiving unit received is feedback information two, the retransmission unit is configured for for unlicensed The upstream data is retransmitted on the resource units of transmission；
If what the receiving unit received is feedback information three, the retransmission unit is configured for being permitted for non- The upstream data is retransmitted on the resource units that can be transmitted；
If what the receiving unit received is feedback information four, the retransmission unit is configured for for unlicensed The upstream data is retransmitted on the resource units of transmission.
According to one embodiment of present invention, if what the receiving unit received is feedback information one, and User ID is examined It surveys unit and the User ID of oneself is not detected, the retransmission unit is configured in the resource units for unlicensed transmission The upstream data is retransmitted in a manner of constant offset；
If what the receiving unit received is feedback information two, the retransmission unit is configured for for unlicensed The upstream data is retransmitted on the resource units of transmission in a manner of constant offset；
If what the receiving unit received is feedback information three, the retransmission unit is configured for for unlicensed The upstream data is retransmitted on the resource units of transmission in a manner of random back；
If what the receiving unit received is feedback information four, the retransmission unit is configured for for unlicensed The upstream data is retransmitted on the resource units of transmission in a manner of random back.
According to one embodiment of present invention, the upstream data includes data information.
According to one embodiment of present invention, User ID detection unit is further included, is configured for further detecting whether Receive the User ID of oneself；What is received when the receiving unit is feedback information five, if User ID detection unit detects The User ID of oneself, the retransmission unit is without retransmission operation；If the user of oneself is not detected in User ID detection unit ID, the retransmission unit are configured for retransmitting the upstream data in the resource units for unlicensed transmission；
If what the receiving unit received is feedback information six, the retransmission unit is configured for for unlicensed The upstream data is retransmitted on the resource units of transmission.
According to one embodiment of present invention, the retransmission unit is configured in the resource list for unlicensed transmission The upstream data is retransmitted on position in a manner of constant offset.
According to one embodiment of present invention, the transmitting element, which further includes, is configured for for unlicensed transmission Before sending upstream data on resource units, a lead code is sent；The receiving unit is additionally configured to receive from net Network side apparatus is to the feedback information of lead code.
According to one embodiment of present invention, lead code ID detection units are further included, if the receiving unit receives Feedback information seven, lead code ID detection units are configured for further detecting whether the lead code ID for receiving oneself, if The lead code ID of oneself is received, the transmitting element is configured for sending institute in the resource units for unlicensed transmission State upstream data；If not receiving the lead code ID of oneself, it is leading that the transmitting element is configured for retransmission one Code.
According to the fifth aspect of the invention, the resource allocation methods in a kind of wireless network, the wireless network packet are provided Network side equipment and at least one user terminal are included, the network side equipment distribution resource units are for the unlicensed of user terminal Uplink；And unlicensed feedback of the feedback resources for network side equipment is distributed, it is described for the unlicensed of user terminal The resource units of uplink and the feedback resources of the unlicensed feedback for network side equipment have correspondence.
Description of the drawings
The following detailed description to non-limiting example, other spies of the invention are read by referring to accompanying drawing Sign, objects and advantages will become more apparent upon.
Fig. 1 a show the flow diagram of 1 step transmission；
Fig. 1 b show the flow diagram of 2 steps transmission；
Fig. 2 shows the correspondence figures of the resource for the resource units of unlicensed transmission and for unlicensed feedback.
Fig. 3 shows the process chart of the network side equipment of the feedback based on resource units in the transmission of 1 step.
Fig. 4 shows the process chart of the network side equipment of the feedback based on resource units in the transmission of 2 steps.
Fig. 5 shows the process chart of the user terminal of the feedback based on resource units in the transmission of 1 step.
Fig. 6 shows the process chart of the user terminal of the feedback based on resource units in the transmission of 2 steps.
Fig. 7 shows the network side equipment structure diagram of the feedback based on resource units.
Fig. 8 shows the user terminal structure diagram of the feedback based on resource units.
Fig. 9 shows the feedback information feature and meaning of unlicensed feedback.
Specific embodiment
It, will be with reference to the appended attached drawing for forming a present invention part in the specific descriptions of following preferred embodiment.Institute Attached attached drawing, which has been illustrated by way of example, can realize specific embodiment.Exemplary embodiment not purport In limit all embodiments according to the present invention.It is appreciated that without departing from the scope of the present invention, it can be utilized His embodiment, can also carry out structural or logicality modification.Therefore, following specific descriptions and unrestricted, and The scope of the present invention is defined by the claims appended hereto.It should be noted that although this is described with particular order in attached drawing In invention the step of method, but this does not require that or implies and must perform these operations according to the particular order, Or the operation having to carry out shown in whole could realize desired as a result, on the contrary, step described herein can change Perform sequence.Additionally or alternatively, it is convenient to omit multiple steps are merged into a step and perform and/or incite somebody to action by certain steps One step is decomposed into execution of multiple steps.
The present invention one resource units of setting are the basic sizes for the resource that unlicensed transmission is used in wireless transmitting system, This resource units is the least resource granularity of the unlicensed transmission of uplink, can include time domain and/or frequency domain.Such as in the time domain, Resource units are exactly a subframe, and resource units are exactly a Physical Resource Block PRB on frequency domain.Certainly, this is divided only It is an example, system can define smaller or larger resource granularity, and specific granularity is what does not influence the present invention.
Feedback based on resource units refer to the feedback of unlicensed transmission be based on allocated each resource units rather than Each UE.Under unlicensed transmission mechanism, multiple UE can share identical time and frequency resource, that is to say, that each resource There can be the upstream data of multiple UE in unit, after network side equipment receives upstream data, according to the decoding feelings of upstream data Condition is fed back based on resource units, and is being used to send feedback information in the resource of unlicensed feedback accordingly.Feedback is It is carried out for all UE for sharing this resource units.In order to make all UE for sharing this resource units correct, effective Unlicensed feedback information is received, it is further proposed that for the resource units of unlicensed transmission and for unlicensed feedback Resource has correspondence.According to correspondence, UE can read the feedback information of oneself and according to anti-in determining resource Feedforward information is correspondingly handled.Also, in many cases, share all UE preamble informations and use of this resource units Family id information all without being sent in feedback information, can greatly save signaling overheads in this way.
Fig. 2 illustratively illustrates the correspondence of the resource for the resource units of unlicensed transmission and for unlicensed feedback Relationship.According to such correspondence, the UE of all shared same asset units 1 is read instead up in corresponding feedback resources 1 Feedforward information, correspondingly, all shared same asset units 2, resource units 3 UE respectively corresponding feedback resources 2, feedback Resource 3 reads feedback information up.Resource units for unlicensed transmission and the corresponding of the resource for unlicensed feedback are closed System is notified by default to corresponding UE and network side equipment.How to distribute resource to unlicensed transmission and how to set Correspondence is counted not in research range of the present invention, such as a specific physical channel can be designed to carry unlicensed feedback； Unlicensed feedback etc. can also be carried using existing physical channel.
Fig. 3 illustratively illustrates the processing procedure of the network side equipment of the feedback based on resource units in the transmission of 1 step. That is, using the feedback based on resource units of the present invention in the transmission of 1 step.It is assumed that at least one user terminal is in the n-th subframe one Upstream data is sent on the resource units of a unlicensed transmission of distribution, including lead code and user data information.Network side equipment Receive upstream data of the user terminal on a certain resource units for unlicensed transmission distribution of n-th of subframe；And to its into Row data processing：Network side equipment first carries out preamble detection, and such as step S301, network side equipment judges whether to detect leading Code, if it is not detected that lead code, network side equipment performs step S302, and network side equipment sends feedback information four.Due to Do not detect lead code, network side equipment will not carry out further data decoding, that is, without further being counted It is believed that breath decoding can be carried out feeding back, this feedback information four system distribute with above-mentioned n-th of subframe it is a certain be it is non- The resource units of allowed transport distribution are sent in the resource of unlicensed feedback accordingly, and can apply rapid feedback, i.e., Network side equipment quickly sends feedback information four in (n+1) subframe for the resource units on time.Feedback information four does not have to take Band lead code ID and User ID need to only notify all to send out on the resource units of one unlicensed transmission of distribution of above-mentioned n-th subframe All user terminals of upstream data is sent to retransmit the upstream data for including lead code and data information.In this case, HARQ merging can not be carried out, to avoid the collision of unlicensed uplink, feedback information four is further used for instruction above-mentioned All user terminals of n-th subframe transmission upstream data on the resource units of unlicensed transmission weight in a manner of random back Pass its upstream data.In another embodiment, network side equipment does not send any information to represent this option.
In step S303, if network side equipment is in a certain resource units for unlicensed transmission distribution of n-th of subframe On detecting more than one lead code (i.e. at least two lead codes), and network side equipment judge cannot to data information into Row is correctly decoded, and network side equipment is not decoded data information, that is, need not carry out further data information decoding It can be carried out feeding back, in step S304, what network side equipment was distributed in system is unlicensed with a certain of above-mentioned n-th of subframe The resource units for transmitting distribution send this feedback information three, and can apply fast in the resource of unlicensed feedback accordingly Speed feedback, i.e. time online network side apparatus quickly send feedback information three in (n+1) subframe for the resource units.Feedback information Three do not have to carry lead code ID and User ID, need to only notify all resources in above-mentioned n-th subframe, one unlicensed transmission of distribution All user terminals retransmission that upstream data is sent in unit includes the upstream data of lead code and data information.This In the case of, HARQ merging can not be carried out, to avoid the collision of unlicensed uplink, feedback information three is further used for indicating All user terminals of upstream data are sent on the resource units of unlicensed transmission with random back in above-mentioned n-th subframe Mode retransmits its upstream data.And network side equipment then abandons the upstream data received on this resource units, because should Data merge HARQ valueless at all.As embodiment, if the network equipment only has Single-user detection ability, then detect Lead code number be more than or equal to 2, network side equipment is thought beyond its processing capacity；If the network equipment has multi-user's inspection Survey ability, when the number of the lead code detected is more than multi-user detection capability, the network equipment thinks what is be successfully decoded at this time Probability is very low, and beyond its processing capacity, network side equipment judges that data information cannot be correctly decoded, network side equipment Data information is not decoded and performs transmission rapid feedback, and abandon the upper line number received on this resource units According to.
If network side equipment only detects one on a certain resource units for unlicensed transmission distribution of n-th of subframe A lead code or the lead code number detected are less than multi-user detection capability, and network side equipment performs step S305, continues Data are decoded, if data decoding failure, network side equipment if be stored in the upstream data that is received on the resource units with Standby HARQ merging is used.Network side equipment continues to execute step S306, and what it is in system distribution is with above-mentioned a certain of n-th of subframe The resource units of unlicensed transmission distribution send feedback information two in the resource of unlicensed feedback accordingly, such as in (n+ K) subframe sends feedback information two to UE for the resource units；Feedback information two is used to indicate in the resource for unlicensed transmission The user terminal that upstream data is sent in unit retransmits the upstream data；Merge to reach HARQ, feedback information two is additionally operable to The user terminal for indicating to send upstream data in the resource units for unlicensed transmission retransmits institute in a manner of constant offset State upstream data；That is constant offset is set between retransmitting and transmitting for the first time, merges for reaching HARQ.Constant offset By system configuration, the time and frequency shift can be included.
Network side equipment performs step S305, continues to decode data, if data successfully decoded, network side equipment if deposits Store up the upstream data that is received on the resource units, network side equipment continues to execute step S307, system distribution with it is upper It is that the resource units that unlicensed transmission distributes are sent instead in the resource of unlicensed feedback accordingly to state n-th of a certain of subframe Feedforward information one also further sends the user's id information for being correctly decoded out data information, is the resource such as in (n+k) subframe Unit sends feedback information one and user's id information is above-mentioned to UE；Feedback information one is used to indicate in the money for unlicensed transmission Upstream data is sent in the unit of source and is correctly decoded out the user terminal of data information need not retransmit the upstream data, and Upstream data is sent on the resource units of unlicensed transmission and is not correctly decoded out the user terminal re-transmission of data information The upstream data；Further instruction sends upstream data and not to feedback information one in the resource units for unlicensed transmission The user terminal for being correctly decoded out data information retransmits above-mentioned upstream data to reach HARQ conjunctions in a manner of constant offset And.
For feedback information three, feedback information four, network side equipment need not carry out further data information decoding Send feedback information, at this time can apply rapid feedback, as network side equipment received in current subframe such as the n-th subframe it is non- After permitting uplink, the feedback to the unlicensed transmission of this uplink is sent in next subframe such as (n+1) subframe.And it is directed to Feedback information one, feedback information two, network side equipment need to carry out retransmiting feedback information after further data information decoding, can To send feedback such as (n+k) subframe with a set time offset.Time migration parameter k is predefined by system, existing LTE/LTE-A FDD systems, k 4.In the new wireless access FDD systems of 5G, if hardware processing capability can substantially enhance, k can be with Less than 4.Present invention design can apply rapid feedback as much as possible, effectively reduce delay.
The exemplary concrete conditions for listing above-mentioned feedback information of Fig. 9.As shown above, unlicensed feedback is selected in sharing 4 , 2 bit feedback information are only needed, wherein 2 kinds can be rapid feedback.Only need to feed back simultaneously for the moment to be correctly decoded in feedback information User ID, signaling overheads can be greatlyd save in this way.To the situation in feedback information three, network indicates user with constant offset Mode retransmitted, then network side equipment knows the position of retransmission resource, then HARQ merging is possible to carry out, and In the case that other can not carry out HARQ merging, network instruction user is retransmitted in a manner of random back, in this way can be big The big possibility for reducing collision and occurring.Similar, even if in the case of Multiuser Detection, feedback information is also 4 kinds, the letter of feedback Order also only needs 2 bits.
Fig. 4 illustratively illustrates the processing procedure of the network side equipment of the feedback based on resource units in the transmission of 2 steps. That is, using the feedback based on resource units of the present invention in the transmission of 2 steps.It is assumed that at least one user terminal is non-in a distribution Upstream data is sent on the resource units of allowed transport, in the transmission of 2 steps, lead code and user data information are sent in two steps. Network side equipment receives upstream data of the user terminal on the resource units for unlicensed transmission distribution；And to it into line number According to processing：Network side equipment first carries out preamble detection, and such as step S401, network side equipment judges whether to detect lead code, If it is not detected that lead code, network side equipment performs step S402, and network side equipment sends feedback information nine.Due to not having Detect lead code, network side equipment will not carry out further data decoding, that is, need not carry out further data letter Breath decoding can be carried out feeding back, this feedback information nine transmits the resource list distributed with above-mentioned what system was distributed to be unlicensed Position is sent in the resource of unlicensed feedback accordingly, and can apply rapid feedback, i.e. time online network side apparatus is the (n+1) subframe quickly sends feedback information four for the resource units.Feedback information nine does not have to carry lead code ID and User ID, only It need to notify that all users that upstream data is sent on the resource units of above-mentioned n-th subframe, one unlicensed transmission of distribution are whole End retransmits the upstream data for including lead code and data information.In this case, HARQ merging can not be carried out, to avoid The collision of unlicensed uplink, feedback information nine are further used for indicating in the above-mentioned resource units for unlicensed transmission The upper all user terminals for sending upstream data retransmit its upstream data in a manner of random back.In another embodiment, network Side apparatus does not send any information to represent this option.
In step S403, if network side equipment is detecting more than one in the resource units for unlicensed transmission distribution A lead code (i.e. at least two lead codes), and network side equipment judgement cannot be correctly decoded data information, network Side apparatus is not decoded data information, that is, need not carry out further data information decoding and can be carried out feeding back, In step S404, network side equipment distributes corresponding for non-with the above-mentioned resource units for unlicensed transmission distribution in system Permit to send this feedback information eight in the resource of feedback, and rapid feedback can be applied, i.e., time online network side apparatus is the Next subframe quickly sends feedback information eight for the resource units.Feedback information eight does not have to carry lead code ID and User ID, only All all user terminals for sending upstream data on the resource units of the unlicensed transmission of above-mentioned distribution need to be notified to retransmit Upstream data including lead code and data information.In this case, HARQ merging can not be carried out, to avoid on unlicensed The collision of row transmission, feedback information eight are further used for indicating sending on the above-mentioned resource units for unlicensed transmission All user terminals of row data retransmit its upstream data in a manner of random back.And network side equipment is then abandoned in this resource The upstream data received in unit, because the data are valueless at all to HARQ merging.As embodiment, if the network equipment Only there is Single-user detection ability, then the lead code number detected is more than or equal to 2, and network side equipment is thought at it Reason ability；If the network equipment has multi-user detection capability, when the number of the lead code detected is more than Multiuser Detection energy During power, the network equipment thinks that the probability being successfully decoded is very low at this time, and beyond its processing capacity, network side equipment judges cannot be right Data information is correctly decoded, and network side equipment is not decoded data information and performs transmission rapid feedback, and abandons The upstream data received on this resource units.
If network side equipment only detects a lead code, Huo Zhejian in the resource units for unlicensed transmission distribution The lead code number measured be less than multi-user detection capability, network side equipment perform step S405, send feedback information seven and The ID of the lead code detected, to indicate that the user terminal for being transmitted across the lead code ID sends row data information thereon.Net Network side apparatus is before receiving transmission feedback information seven in lead code of user terminal feedback window and detecting The ID of leading code.
In step S406, network side equipment, which receives, carrys out the resource for unlicensed transmission that user terminal is distributed in system Unlicensed uplink in unit, is decoded processing to the data information received in step S407 and judges, if number Fail according to decoding, network side equipment is then stored in the upstream data received on the resource units in case HARQ merging is used.Net Network side apparatus continues to execute step S409, in the corresponding for non-with the resource units for unlicensed transmission distribution of system distribution Permit to send feedback information six in the resource of feedback；Feedback information six is used to indicate in the resource units for unlicensed transmission The user terminal for sending upstream data retransmits the upstream data；Merge to reach HARQ, feedback information six is additionally operable to instruction and exists The user terminal that upstream data is sent on the resource units of unlicensed transmission retransmits the uplink in a manner of constant offset Data；That is constant offset is set between retransmitting and transmitting for the first time, merges for reaching HARQ.
Network side equipment performs step S407, continues to decode data, if data successfully decoded, if network side equipment Be stored in the upstream data received on the resource units, network side equipment continues to execute step S408, system distribution with It is above-mentioned for it is unlicensed transmission distribution resource units accordingly for unlicensed feedback resource on send feedback information five, also into One step sends the user's id information for being correctly decoded out data information；Feedback information five is used to indicate for unlicensed transmission Upstream data is sent on resource units and is correctly decoded out the user terminal of data information need not retransmit the upstream data, and Upstream data is sent in the resource units for unlicensed transmission and is not correctly decoded out the user terminal weight of data information Pass the upstream data；Feedback information five further instruction in the resource units for unlicensed transmission send upstream data and The user terminal for not being correctly decoded out data information retransmits above-mentioned upstream data to reach HARQ in a manner of constant offset Merge.
For feedback information seven, feedback information eight and feedback information nine, network side equipment need not carry out further data letter Breath decoding can send feedback information, rapid feedback can be applied at this time, if network side equipment is in current subframe such as n-th After subframe receives unlicensed uplink, in next subframe such as
(n+1) subframe sends the feedback to the unlicensed transmission of this uplink.And feedback information five, feedback information six are directed to, Network side equipment need to carry out retransmiting feedback information after further data information decoding, can be with a set time offset hair Send feedback such as (n+k) subframe.Time migration parameter k is predefined by system, in existing LTE/LTE-A FDD systems, k 4. In the new wireless access FDD systems of 5G, if hardware processing capability can substantially enhance, k can be less than 4.Present invention design can be use up Possibly using rapid feedback, delay is effectively reduced.
Similarly, since in many cases, lead code ID does not close User ID and is not required to feed back, and feedback signaling overhead also can be significantly It reduces.
Processing and the processing of network side equipment of user terminal are corresponding.
Fig. 5 illustratively illustrates the processing procedure of the user terminal of the feedback based on resource units in the transmission of 1 step.That is, Using the feedback based on resource units of the present invention in the transmission of 1 step.It should be noted that the processing procedure of Fig. 5 and the place of Fig. 3 Reason process is corresponding.
In step S501, UE is in the n-th subframe, the line number in transmission on the resource units for unlicensed transmission distribution According to including lead code and data information.In step S502, UE will be sub that is, from (n+1) subframe to (n+k) in feedback window Frame is attempted to receive unlicensed feedback and be carried out on the corresponding feedback resources of resource units for carrying out unlicensed transmission with oneself Respective handling.The size k subframes of feedback window are by default.For the used resource units of UE, in step S506, if UE receives feedback information four or until (n+k) subframe does not receive any feedback yet in (n+1) subframe, and UE performs step S510 is retransmitted in a manner of random back.In step S505, if UE receives feedback information three in (n+1) subframe, UE performs step S510, is retransmitted in a manner of random back.In step S504, if UE is received instead in (n+k) subframe Feedforward information two, UE are performed step S509, are retransmitted in a manner of constant offset.Constant offset can be included by system configuration The time and frequency shift.In step S503, if UE receives feedback information one in (n+k) subframe, UE performs step S507, into Whether one step detects the User ID of oneself in the feedback information.In step S508, UE receives the User ID of oneself, then UE It is successful to know its transmission in the n-th subframe, without carrying out data re-transmission；If UE does not receive the User ID of oneself, that UE knows its unsuccessful transmission in the n-th subframe, and UE is performed step S509, retransmitted in a manner of constant offset.It is fixed Offset can include the time and frequency shift by system configuration.
Fig. 6 illustratively illustrates the processing procedure of the user terminal of the feedback based on resource units in the transmission of 2 steps.That is, Using the feedback based on resource units of the present invention in the transmission of 2 steps.It should be noted that the processing procedure of Fig. 6 and the place of Fig. 4 Reason process is corresponding.
In step S601, UE is in the n-th subframe, the line number in transmission on the resource units for unlicensed transmission distribution According to including lead code.It will be attempted to receive that is, from (n+1) subframe to (n+k) subframe in feedback window in step S602, UE It is unlicensed to feed back and carry out respective handling.The size k subframes of feedback window are by default.For the used resource units of UE, In step S603, if UE is received on the corresponding feedback resources of resource units for carrying out unlicensed uplink with oneself Feedback information seven, UE perform step S606, further detect in feedback information seven whether have the lead code ID of oneself, if do not had Have, UE performs step S14, is retransmitted in a manner of random back；If there is oneself lead code ID, UE perform step S607 sends upstream data, i.e. data information on the resource units for unlicensed transmission distribution.Then in step S608, UE detect feedback information, and in step S609, UE receives feedback information five, and UE continues to execute step S611, detects whether There is the User ID of oneself, if not provided, UE performs step S613, retransmitted in a manner of constant offset.If UE detections have The User ID of oneself, UE perform step S612, then UE knows that its transmission in the n-th subframe is successful, without carrying out data It retransmits.If in step S608, UE detection feedback informations, in step S610, UE receives feedback information six, and UE performs step S613 is retransmitted in a manner of constant offset.If in step S602, for the used resource units of UE, in step S604, if UE receives feedback letter on the corresponding feedback resources of resource units for carrying out unlicensed uplink with oneself It ceases eight, UE and performs step S614, retransmitted in a manner of random back；In step S605, if UE is non-with oneself progress Permit to receive feedback information nine on the corresponding feedback resources of resource units of uplink, UE performs step S614, with The mode that machine is kept out of the way is retransmitted.
Fig. 7 illustratively illustrates the network side equipment structure diagram of the feedback based on resource units.Network side equipment 700 Such as it can be or can realize above in association with the network side equipment in the described embodiments of Fig. 3 or Fig. 4.
Network side equipment 700 includes receiving unit 701, be configured for receiving from least one user terminal with In the upstream data sent on the resource units of unlicensed transmission, including receiving lead code and/or user data information；At data It manages unit and includes preamble detection unit 702 and data information decoding unit 704, preamble detection unit 702 is configured for Lead code is detected；Data information decoding unit 704 is configured for being decoded data information；Judging unit 703 The testing result according to preamble detection unit is configured for, judges whether to need to be decoded data information；Feedback Member 705, is configured for according to the data processed result, with the resource units for unlicensed transmission are corresponding is used for Feedback information is sent on the feedback resources of unlicensed transmission feedback.
Fig. 8 illustratively illustrates the user terminal structure diagram of the feedback based on resource units.User terminal 800 is for example It can be or can realize above in association with the user terminal in the described embodiments of Fig. 5 or Fig. 6.
User terminal 800 includes transmitting element 801, is configured for sending in the resource units for unlicensed transmission Upstream data includes lead code and/or data information；Receiving unit 802, be configured for receive from network side equipment with The feedback sent on the corresponding feedback resources for unlicensed transmission feedback of the resource units for unlicensed transmission Information；Lead code ID detection units 803 are configured for detecting whether the lead code for receiving oneself；User ID detection unit 804 are configured for detecting whether the User ID for receiving oneself；Retransmission unit 805 is configured for according to feedback information, right The upstream data sent is retransmitted；Or it does not retransmit.
The innovation scheme of the present invention can effectively reduce the expense of the feedback signaling of unlicensed transmission, because of lead code ID and UE ID is not must only send successfully, being needed comprising UE-ID in designation date with cell in feedback signaling.Specific Under scene, the present invention can send rapid feedback, effectively reduce delay.And it indicates in a manner of constant offset or random back It retransmits, collision can be reduced, reach the condition of HARQ merging under suitable conditions.
It is obvious to a person skilled in the art that the present invention is not limited to the details of above-mentioned exemplary embodiment, Er Qie In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter How from the point of view of, the present embodiments are to be considered as illustrative and not restrictive.In addition, it will be evident that one word of " comprising " not Exclude other elements and step, and wording "one" be not excluded for plural number.The multiple element stated in device claim also may be used To be realized by an element.The first, the second grade words are used to indicate names, and are not represented any particular order.

Claims (45)

1. a kind of feedback method of the unlicensed transmission based on resource units, including：
Network side equipment receives sending in the resource units for unlicensed transmission from least one user terminal Row data；
The network side equipment carries out data processing to the upstream data；
The network side equipment is according to the data processed result, corresponding with the resource units for unlicensed transmission For it is unlicensed transmission feedback feedback resources on send feedback information.
2. the method as described in claim 1, the upstream data include the lead code sum number of at least one user terminal it is believed that Breath；The network side equipment carries out data processing to the upstream data and includes preamble detection, and according to the detection of lead code As a result, the network side equipment judges whether to need to be decoded data information, it is decoded if necessary, the network side Equipment is further decoded data information.
3. method as claimed in claim 2, described according to data processed result, the network side equipment is permitted described for non- Transmission feedback information on the feedback resources of feedback can be transmitted to include：
When network side equipment to the upstream data carry out preamble detection, detect at least one lead code, and successfully solve Code goes out the data information of at least one user terminal, and network side equipment is in the feedback resources for unlicensed transmission feedback Send feedback information one；
When network side equipment carries out preamble detection to upstream data, detect at least one lead code, and to data information into Row decoding but the decoding data information that fails, network side equipment are sent out on the feedback resources for unlicensed transmission feedback Send feedback information two；
When network side equipment to upstream data carry out preamble detection, detect at least two lead codes, and network side equipment Judgement cannot be correctly decoded data information, and network side equipment is not decoded data information, be permitted described for non- Transmission feedback information three on the feedback resources of feedback can be transmitted；
When network side equipment to upstream data carry out preamble detection, fail to detect lead code, network side equipment is not to data Information is decoded, and feedback information four is sent on the feedback resources for unlicensed transmission feedback.
4. method as claimed in claim 3, the network side equipment of working as is sending feedback information for the moment, also further transmission quilt It is correctly decoded out user's id information of data information.
5. method as claimed in claim 4, the feedback information one is used to indicate in the resource units for unlicensed transmission The upper user terminal for sending upstream data and being correctly decoded out data information need not retransmit the upstream data, and for non- On the resource units of allowed transport send upstream data and be not correctly decoded out data information user terminal retransmit it is described on Row data；Feedback information two is used to indicate the user terminal weight that upstream data is sent in the resource units for unlicensed transmission Pass the upstream data；Feedback information three is used to indicate the use that upstream data is sent in the resource units for unlicensed transmission Family terminal retransmits the upstream data；Feedback information four is used to indicate sends uplink in the resource units for unlicensed transmission The user terminal of data retransmits the upstream data.
6. method as claimed in claim 4, further, the feedback information one are additionally operable to instruction for unlicensed transmission Resource units on send upstream data and be not correctly decoded out the user terminal of the data information weight in a manner of constant offset Pass the upstream data；The feedback information two is additionally operable to indicate to send line number in the resource units for unlicensed transmission According to user terminal the upstream data is retransmitted in a manner of constant offset；Feedback information three is additionally operable to instruction for unlicensed The user terminal that upstream data is sent on the resource units of transmission retransmits the upstream data in a manner of random back；Feedback letter Breath four is additionally operable to indicate to send the user terminal of upstream data in the resource units for unlicensed transmission with random back Mode retransmits the upstream data.
7. method as claimed in claim 2, when the network side equipment sends feedback information for the moment, network side equipment with receipts Set time offset to the current subframe of the upstream data sends feedback information one；When network side equipment sends feedback information When two, network side equipment sends feedback information two in the set time offset of the current subframe with receiving the upstream data；When When the network side equipment sends feedback information three, network side equipment sends anti-in the next subframe for receiving the upstream data Feedforward information three；When network side equipment sends feedback information four, network side equipment is in the next height for receiving the upstream data Frame sends feedback information four.
8. the method as described in claim 1, the upstream data includes the data information of at least one user terminal；The net Network side apparatus carries out the upstream data data processing and refers to that data information decodes, if the network side equipment is successfully decoded Go out the data information of at least one user terminal, network side equipment is sent out on the feedback resources for unlicensed transmission feedback Send feedback information five；If the data information for carrying out user terminal, network side equipment cannot be successfully decoded in the network side equipment Feedback information six is sent on the feedback resources for unlicensed transmission feedback.
9. method as claimed in claim 8, further, the network side equipment are being received from least one user terminal The upstream data sent in the resource units for unlicensed transmission before, also receive from least one user terminal Lead code, and carry out preamble detection.
10. method as claimed in claim 9, if the network side equipment correctly detects lead code, the network side is set Preparation send feedback information seven and the ID of the lead code detected, to indicate to be transmitted across the user terminal hair of the lead code ID Send the upstream data information.
It is described when network side equipment is when sending feedback information five 11. method as claimed in claim 8, also further send It is correctly decoded out user's id information of data information.
12. method as claimed in claim 11, the feedback information five, which is used to indicate the data that are correctly decoded out, to be believed The user terminal of breath need not retransmit the upstream data；Feedback information six is used to indicate in the resource units for unlicensed transmission The upper user terminal for sending upstream data retransmits the upstream data.
13. method as claimed in claim 12, the network side equipment is in the current subframe with receiving the upstream data When set time offset sends feedback information five or feedback information six；The network side equipment is before the user terminal is received Feedback information seven is sent in one feedback window of leading code.
14. a kind of feedback method of the unlicensed transmission based on resource units, including：
User terminal sends upstream data in the resource units for unlicensed transmission；
It receives from network side equipment corresponding for unlicensed transmission with the resource units for unlicensed transmission The feedback information sent on the feedback resources of feedback；
According to feedback information, user terminal retransmits the upstream data sent；Or it does not retransmit.
15. method as claimed in claim 14, the upstream data includes lead code and data information.
16. method as claimed in claim 15,
If what user terminal received is feedback information one, the user terminal further detects whether to receive the user of oneself ID, if receiving the User ID of oneself, the user equipment is without retransmission operation；If the user of oneself is not received ID, the user equipment retransmit the upstream data in the resource units for unlicensed transmission；
If what user terminal received is feedback information two, user terminal weight in the resource units for unlicensed transmission Pass the upstream data；
If what user terminal received is feedback information three, user terminal weight in the resource units for unlicensed transmission Pass the upstream data；
If what user terminal received is feedback information four, user terminal weight in the resource units for unlicensed transmission Pass the upstream data.
17. the method described in claim 16,
If what user terminal received is feedback information one, and does not receive the User ID of oneself, the user equipment for The upstream data is retransmitted on the resource units of unlicensed transmission in a manner of constant offset；
If what user terminal received is feedback information two, the user terminal in the resource units for unlicensed transmission with The mode of constant offset retransmits the upstream data；
If what user terminal received is feedback information three, the user terminal in the resource units for unlicensed transmission with The mode of random back retransmits the upstream data；
If what user terminal received is feedback information four, the user terminal in the resource units for unlicensed transmission with The mode of random back retransmits the upstream data.
18. method as claimed in claim 14, the upstream data includes data information.
19. method as claimed in claim 18,
If what user terminal received is feedback information five, the user terminal further detects whether to receive the user of oneself ID, if receiving the User ID of oneself, the user equipment is without retransmission operation；If the user of oneself is not received ID, the user equipment retransmit the upstream data in the resource units for unlicensed transmission；
If what user terminal received is feedback information six, user equipment weight in the resource units for unlicensed transmission Pass the upstream data.
20. method as claimed in claim 19, the user terminal is in the resource units for unlicensed transmission with fixation The mode of offset retransmits the upstream data.
21. method as claimed in claim 18, the user terminal is sent in the resource units for unlicensed transmission Before row data, further include：
Send a lead code；
It receives from network side equipment to the feedback information of lead code.
22. method as claimed in claim 21, if the user terminal receives feedback information seven, user terminal is further It detects whether to receive the lead code ID of oneself, if receiving the lead code ID of oneself, the user equipment is permitted for non- The upstream data is sent on the resource units that can be transmitted；If the lead code ID of oneself, the user equipment weight are not received Newly send a lead code.
23. a kind of network side equipment, the network side equipment is used to carry out the feedback of the unlicensed transmission based on resource units, packet It includes：
Receiving unit, be configured for receiving from least one user terminal in the resource units for unlicensed transmission The upstream data of transmission；
Data processing unit is configured for carrying out data processing to the upstream data；
Feedback unit is configured for according to the data processed result, with the resource units for unlicensed transmission Feedback information is sent on the corresponding feedback resources for unlicensed transmission feedback.
24. network side equipment as claimed in claim 23, the upstream data includes the lead code of at least one user terminal And data information；The data processing unit includes preamble detection unit, is configured for preamble detection；The network side Equipment further includes judging unit, is configured for the testing result according to preamble detection unit, judges whether to need to data Information is decoded；The data processing unit further includes data decoding unit, is configured for being decoded data information.
25. network side equipment as claimed in claim 24, the feedback information that the feedback unit is sent is one of following：
When lead code detection unit detects at least one lead code, and at least one use is successfully decoded out in data decoding unit The data information of family terminal, feedback unit send feedback information one on the feedback resources for unlicensed transmission feedback；
When lead code detection unit detects at least one lead code, and data decoding unit fails and decodes data letter Breath, feedback unit send feedback information two on the feedback resources for unlicensed transmission feedback；
When lead code detection unit detects at least two lead codes, and judging unit judges that data information cannot be carried out just Really decoding, data decoding unit are not decoded data information, and feedback unit is described for the anti-of unlicensed transmission feedback It presents and feedback information three is sent in resource；
When lead code detection unit fails to detect lead code, data decoding unit is not decoded data information, feedback Member sends feedback information four on the feedback resources for unlicensed transmission feedback.
26. network side equipment as claimed in claim 25, the feedback unit is sending feedback information for the moment, also further by It is configured to send the user's id information for being correctly decoded out data information.
27. network side equipment as claimed in claim 26, the feedback information one is used to indicate for unlicensed transmission Upstream data is sent on resource units and is correctly decoded out the user terminal of data information need not retransmit the upstream data, and Upstream data is sent in the resource units for unlicensed transmission and is not correctly decoded out the user terminal weight of data information Pass the upstream data；Feedback information two is used to indicate the use that upstream data is sent in the resource units for unlicensed transmission Family terminal retransmits the upstream data；Feedback information three is used to indicate sends uplink in the resource units for unlicensed transmission The user terminal of data retransmits the upstream data；Feedback information four is used to indicate in the resource units for unlicensed transmission The user terminal for sending upstream data retransmits the upstream data.
28. network side equipment as claimed in claim 23, further, the feedback information one are additionally operable to instruction for non- Upstream data is sent on the resource units of allowed transport and is not correctly decoded out the user terminal of data information with constant offset Mode retransmit the upstream data；The feedback information two is additionally operable to indicate to send out in the resource units for unlicensed transmission The user terminal of upstream data is sent to retransmit the upstream data in a manner of constant offset；Feedback information three be additionally operable to instruction with The upper line number is retransmitted in a manner of random back in the user terminal that upstream data is sent on the resource units of unlicensed transmission According to；Feedback information four be additionally operable to indicate in the resource units for unlicensed transmission send upstream data user terminal with The mode that machine is kept out of the way retransmits the upstream data.
29. network side equipment as claimed in claim 24, when the feedback unit is configured for sending feedback information for the moment, Feedback unit is configured for sending feedback information one in the set time offset of the current subframe with receiving the upstream data； When the feedback unit is configured for sending feedback information two, feedback unit is configured for receiving line number on described According to current subframe set time offset send feedback information two；When the feedback unit is configured for sending feedback information When three, feedback unit is configured for sending feedback information three in the next subframe for receiving the upstream data；When described anti- When feedback unit is configured for sending feedback information four, feedback unit is configured for receiving the next of the upstream data Subframe sends feedback information four.
30. network side equipment as claimed in claim 23, the data that the upstream data includes at least one user terminal are believed Breath；The data processing unit is configured for data information decoding, if the data processing unit is successfully decoded out at least The data information of one user terminal, the feedback unit are configured in the feedback money for unlicensed transmission feedback Feedback information five is sent on source；If the data information for carrying out user terminal, institute cannot be successfully decoded in the data processing unit Feedback unit is stated to be configured for sending feedback information six on the feedback resources for unlicensed transmission feedback.
31. network side equipment as claimed in claim 30, further, the receiving unit are configured for coming from reception Before the upstream data sent in the resource units for unlicensed transmission of at least one user terminal, also receive from extremely The lead code of a few user terminal, and be output to preamble detection unit and carry out preamble detection.
32. network side equipment as claimed in claim 31, if the preamble detection unit correctly detects lead code, institute State the ID that feedback unit is configured for sending feedback information seven and the lead code detected, to indicate to be transmitted across it is described before The user terminal of leading code ID sends the upstream data information.
33. network side equipment as claimed in claim 30, when the feedback unit is configured for sending feedback information five, also It is further configured to send the user's id information for being correctly decoded out data information.
34. network side equipment as claimed in claim 33, the feedback information five is used to indicate described to be correctly decoded out The user terminal of data information need not retransmit the upstream data；Feedback information six is used to indicate in the money for unlicensed transmission The user terminal that upstream data is sent in the unit of source retransmits the upstream data.
35. network side equipment as claimed in claim 34, the feedback unit is configured for receiving line number on described According to the set time offset of current subframe send feedback information five or during feedback information six；The feedback unit is configured for Feedback information seven is sent in a feedback window for receiving the lead code of the user terminal.
36. a kind of user terminal, in the feedback of the unlicensed transmission based on resource units, including：
Transmitting element is configured for sending upstream data in the resource units for unlicensed transmission；
Receiving unit is configured for receiving from network side equipment opposite with the resource units for unlicensed transmission The feedback information sent on the feedback resources for unlicensed transmission feedback answered；
Retransmission unit is configured for according to feedback information, and the upstream data sent is retransmitted；Or it does not weigh It passes.
37. user terminal as claimed in claim 36, the upstream data includes lead code and data information.
38. user terminal as claimed in claim 37 further includes User ID detection unit, it is configured for receiving list when described What member received is feedback information one, and the User ID detection unit is configured for detecting whether the User ID for receiving oneself, If receiving the User ID of oneself, the retransmission unit is without retransmission operation；If not receiving the User ID of oneself, institute Retransmission unit is stated to be configured for retransmitting the upstream data in the resource units for unlicensed transmission；
If what the receiving unit received is feedback information two, the retransmission unit is configured for for unlicensed transmission Resource units on retransmit the upstream data；
If what the receiving unit received is feedback information three, the retransmission unit is configured for for unlicensed transmission Resource units on retransmit the upstream data；
If what the receiving unit received is feedback information four, the retransmission unit is configured for for unlicensed transmission Resource units on retransmit the upstream data.
39. user terminal as claimed in claim 38,
If what the receiving unit received is feedback information one, and the User ID of oneself is not detected in User ID detection unit, The retransmission unit is configured in the resource units for unlicensed transmission retransmitting in a manner of constant offset described Row data；
If what the receiving unit received is feedback information two, the retransmission unit is configured for for unlicensed transmission Resource units on the upstream data is retransmitted in a manner of constant offset；
If what the receiving unit received is feedback information three, the retransmission unit is configured for for unlicensed transmission Resource units on the upstream data is retransmitted in a manner of random back；
If what the receiving unit received is feedback information four, the retransmission unit is configured for for unlicensed transmission Resource units on the upstream data is retransmitted in a manner of random back.
40. user terminal as claimed in claim 36, the upstream data includes data information.
41. user terminal as claimed in claim 40 further includes User ID detection unit, being configured for further detecting is The no User ID for receiving oneself；What is received when the receiving unit is feedback information five, if User ID detection unit detects To the User ID of oneself, the retransmission unit is without retransmission operation；If the use of oneself is not detected in User ID detection unit Family ID, the retransmission unit are configured for retransmitting the upstream data in the resource units for unlicensed transmission；
If what the receiving unit received is feedback information six, the retransmission unit is configured for for unlicensed transmission Resource units on retransmit the upstream data.
42. user terminal as claimed in claim 41, the retransmission unit is configured in the money for unlicensed transmission The upstream data is retransmitted in the unit of source in a manner of constant offset.
43. user terminal as claimed in claim 42, the transmitting element, which further includes, to be configured for for unlicensed biography Before sending upstream data on defeated resource units, a lead code is sent；The receiving unit, which is additionally configured to receive, to be come Automatic network side apparatus is to the feedback information of lead code.
44. user terminal as claimed in claim 43 further includes lead code ID detection units, if the receiving unit receives To feedback information seven, lead code ID detection units are configured for further detecting whether the lead code ID for receiving oneself, such as Fruit receives the lead code ID of oneself, and the transmitting element is configured for sending in the resource units for unlicensed transmission The upstream data；If not receiving the lead code ID of oneself, the transmitting element is configured for before retransmitting one Leading code.
45. the resource allocation methods in a kind of wireless network, the wireless network includes network side equipment and at least one user Terminal, the network side equipment distribution resource units are used for the unlicensed uplink of user terminal；And distribute feedback resources For the unlicensed feedback of network side equipment, the resource units of the unlicensed uplink for user terminal are with being used for net The feedback resources of the unlicensed feedback of network side apparatus have correspondence.
CN201611214954.8A 2016-12-26 2016-12-26 Resource unit-based feedback method and device for unlicensed transmission Active CN108242970B (en)

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