CN107027180A - The sending method and terminal of unauthorized carrier wave upstream data - Google Patents
The sending method and terminal of unauthorized carrier wave upstream data Download PDFInfo
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- CN107027180A CN107027180A CN201610074258.5A CN201610074258A CN107027180A CN 107027180 A CN107027180 A CN 107027180A CN 201610074258 A CN201610074258 A CN 201610074258A CN 107027180 A CN107027180 A CN 107027180A
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- terminal
- harq
- harq processes
- uplink authorization
- information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
Abstract
The invention discloses a kind of sending method of unauthorized carrier wave upstream data and base station, methods described includes：The terminal receives the uplink authorization instruction that base station is sent, and the uplink authorization at least includes the identification information of the first HARQ processes in indicating；The terminal obtains the first HARQ state of a process information according to the identification information of the HARQ processes, and the first HARQ states of a process information at least includes NDI values, the buffer state of the first HARQ processes in the first HARQ processes；The terminal is indicated according to the uplink authorization and/or the first HARQ state of a process information determines whether to be retransmitted or new biography；The terminal obtains the time-frequency domain information of the resource competed；If the terminal determines to be retransmitted, the terminal using the first HARQ process different from the 2nd HARQ processes retransmit the 2nd HARQ processes in resource corresponding with the time-frequency domain information before transmission upstream data.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of sender of unauthorized carrier wave upstream data
Method and terminal.
Background technology
In Long Term Evolution (LTE) system, terminal (UE, User Equipment) needs physically to go
Data are sent in shared channel (PUSCH, Physical Uplink Shared CHannel) (except non-adaptive
Should retransmit), it is necessary to which the effective uplink authorization for obtaining base station distribution is indicated.The uplink authorization is indicated can be in thing
Connect on reason down control channel (PDCCH, Physical Downlink Control CHannel) or at random
Enter dynamic configuration in response, or be semi-statically configured, uplink authorization can be at which comprising terminal in indicating
Time which carrier wave transmitting data and use Modulation and Coding Scheme etc..Terminal obtains the up of base station distribution
Authorize after indicating, upstream data can be sent in specified time-frequency domain resources.
In order to carry out the transmission of upstream data, in UE sides, medium access control (MAC, Media Access
Control) layer needs to obtain hybrid automatic repeat-request (the Hybrid Automatic of correlation from physical layer
Repeat reQuest, HARQ) information.There is a HARQ entity, HARQ entity maintainings in UE sides
The parallel HARQ processes of certain amount, so that during realizing in wait once transmission success whether feedback
Proceed continuous transmission.In given Transmission Time Interval (TTI, Transmission a Time
Interval), if it is indicated that the uplink authorization of the TTI is indicated, HARQ entities are that the transmission that will occur is true
A fixed HARQ process.HARQ entities are also the HARQ feedback correct/error received from physical layer
Response (ACK/NACK, Acknowledgement/Negative Acknowledgement) information, tune
System is sent to coding strategy (MCS, Modulation and Coding Scheme) information and resource information
Corresponding HARQ processes.Each HARQ processes correspond to a harq buffer area (buffer).Mesh
Before, use synchronized transmission mode using general when retransmitting packet, that is, when retransmitting packet, terminal
The packet can be retransmitted in the place of the fixation for the HARQ processes that the packet is transmitted relative to first time.
Carrier aggregation technology (CA, Carrier are introduced to provide higher data rate to mobile subscriber
Aggregation), UE, which enters after connected state, to pass through multiple component carriers (such as CC1, CC2) simultaneously
Communicated with source base station, base station can be that UE specifies one by explicit configuration or according to protocol conventions
Principal component carrier wave (Primary Component Carrier, PCC), other component carriers are referred to as auxiliary component
Carrier wave (Secondary Component Carrier, SCC), the serving cell on PCC is referred to as main service
Cell (Primary Cell, Pcell), the serving cell on SCC is referred to as auxiliary serving cell (Secondary
Cell, Scell).
With the rapid growth of data service, in the near future, frequency spectrum is authorized to bear so huge
Data volume；So LTE operators are considered in the middle part of unlicensed spectrum resource (Unlicensed Carrier)
LTE is affixed one's name to, the data traffic authorized in carrier wave is shared by unlicensed spectrum.Unauthorized carrier wave (exempts to authorize
Frequency spectrum) refer to meeting government department (such as State Radio Regulatory Commission) pertinent regulations (radio tube
System) under, it is not necessary to authorize the frequency spectrum or carrier wave that just can directly use.For example, micro-wave oven, remote-control toy fly
Machine, wireless mouse, Wireless Keyboard, high-fidelity wireless networking (WiFi, Wireless Fidelity) etc. all make
With unauthorized carrier wave.In other instances, unauthorized carrier wave needs to use by competition.If base
(base station herein at least includes micro-base station, femto base station, WiFi access points) is stood without competition to resource,
Unauthorized carrier wave can not then be used.Unauthorized carrier wave and mandate carrier wave can be used by way of carrier aggregation,
Unauthorized carrier wave authorizes carrier wave as main serving cell, unauthorized load generally as the supplement of data transfer
Ripple is used as auxiliary serving cell.
Unauthorized carrier resource has very big particularity, if still using current upper line number under this scene
According to synchronized transmission mode (i.e. terminal can be consolidated in the HARQ processes that the packet is being transmitted relative to first time
Fix time to be spaced and retransmit the packet), it can make it that the time delay that upstream data is sent is uncontrollable, easily occur not
Normal situation, therefore can take a long time to and send successfully, these situations can all cause asking for packet loss
Topic.
The content of the invention
In view of this, the embodiment of the present invention provides one to solve at least one problem present in prior art
The sending method and terminal of unauthorized carrier wave upstream data are planted, upstream data is used under unauthorized carrier wave scene
Asynchronous sending mode, with solve data transmission time delay it is uncontrollable, easily there is abnormal situation etc.
And the problem of cause packet loss.
What the technical scheme of the embodiment of the present invention was realized in：
In a first aspect, the embodiment of the present invention provides a kind of sending method of unauthorized carrier wave upstream data, it is described
Method includes：
The terminal receives the uplink authorization that base station sends and indicated, the uplink authorization at least includes the in indicating
The identification information of one HARQ processes；
The terminal obtains the shape of the first HARQ processes according to the identification information of the HARQ processes
State information, the HARQ states of a process information at least include the first HARQ processes in NDI values whether
Whether upset, the buffer area of the first HARQ processes are empty；
The terminal is indicated according to the uplink authorization and/or the first HARQ state of a process information is true
It is fixed whether to be retransmitted or new biography；
The terminal obtains the time-frequency domain information of the resource competed；
If the terminal determines to be retransmitted, the terminal is existed using the first HARQ processes
The upstream data sent before being retransmitted in resource corresponding with the time-frequency domain information, or the terminal are utilized
The first HARQ process different from the 2nd HARQ processes is in resource corresponding with the time-frequency domain information
Retransmit the upstream data of the transmission before the 2nd HARQ processes.
Second aspect, the embodiment of the present invention provides a kind of terminal, and the terminal is obtained including receiving unit, first
Unit, determining unit, second acquisition unit and retransmission unit are taken, wherein：
The receiving unit, the uplink authorization for receiving base station transmission is indicated, during the uplink authorization is indicated
At least include the identification information of the first HARQ processes；
The first acquisition unit, for obtaining described first according to the identification information of the HARQ processes
HARQ state of a process information, the HARQ states of a process information is at least entered including the first HARQ
Whether NDI values overturn in journey, whether the buffer area of the first HARQ processes is empty；
First determining unit, for being entered according to uplink authorization instruction and/or the first HARQ
The status information of journey determines whether to be retransmitted or new biography；
The second acquisition unit, the time-frequency domain information for obtaining the resource competed；
The retransmission unit, if determine to be retransmitted for the terminal, the terminal utilizes institute
State the upper line number sent before the first HARQ processes are retransmitted in resource corresponding with the time-frequency domain information
According to, or the terminal using the first HARQ process different from the 2nd HARQ processes with it is described when
The upstream data of the transmission before the 2nd HARQ processes is retransmitted in the corresponding resource of frequency domain information.
The sending method and terminal of unauthorized carrier wave upstream data provided in an embodiment of the present invention, wherein, it is described
Terminal receives the uplink authorization instruction that base station is sent, and the uplink authorization at least includes the first HARQ in indicating
The identification information of process；The terminal obtains described first according to the identification information of the HARQ processes
HARQ state of a process information, the HARQ states of a process information is at least entered including the first HARQ
Whether NDI values overturn in journey, whether the buffer area of the first HARQ processes is empty；The terminal is according to institute
State that uplink authorization is indicated and/or the first HARQ state of a process information determines whether to be retransmitted or newly
Pass；The terminal obtains the time-frequency domain information of the resource competed；If the terminal determines to be retransmitted,
The terminal using the first HARQ process different from the 2nd HARQ processes with the time-frequency domain information
The upstream data of the transmission before the 2nd HARQ processes is retransmitted in corresponding resource；In this way, being awarded non-
Weigh carrier wave scene under use upstream data asynchronous sending mode, with solve data transmission time delay it is uncontrollable,
The problem of easily there is abnormal situation etc. and cause packet loss.
Brief description of the drawings
Fig. 1 is the schematic diagram of transmission upstream data in correlation technique；
Fig. 2 is the schematic diagram of transmission upstream data in the embodiment of the present invention；
Fig. 3 illustrates for the implementation process of the sending method of the unauthorized carrier wave upstream data of the embodiment of the present invention one
Figure；
Fig. 4 is the composition structural representation of the terminal of the embodiment of the present invention one.
Embodiment
The process that uplink synchronous in correlation technique sends data is first introduced below：Terminal receives base station and sent
PDCCH, if indicating that the terminal refers to according to uplink authorization is received comprising uplink authorization in PDCCH
The subframe shown determines HARQ process numbers, and obtains HARQ state of a process information, then terminal is according to institute
Uplink authorization is stated to indicate to carry out determining whether to trigger with HARQ states of a process information once retransmitting (before
The transmission again for the packet being transmitted across) or new biography (one not sent before of triggering
The first time transmission of packet)：Wherein, HARQ states of a process information at least includes：HARQ processes
NDI values in preceding once transmission, the buffer state of HARQ processes, wherein buffer state include buffering
Area whether be it is empty and whether NULL.Specifically,
Indicated if up authorizing not with Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (T-CRNTI, Temporary
Cell Radio Network Temporary Identifier) mark PDCCH in, it is and if related
New data in HARQ information indicates that (NDI, New Data Indicator) enters Cheng Qian compared to the HARQ
Value in once transmitting is turned over, or, indicate to mark temporarily with the wireless network of cell if up authorizing
In the PDCCH for knowing (C-RNTI, Cell Radio Network Temporary Identity) mark, and
The buffering area of the HARQ processes is empty (data i.e. in buffering area are empty), or, if described up
Authorize and indicate in accidental access response, then notify the once new transmission of corresponding HARQ process triggers；It is no
Then, corresponding adaptive retransmission of HARQ process triggers is notified.
If the PDCCH that terminal receives base station transmission is not indicated comprising uplink authorization, TTI correspondences
HARQ processes buffering area non-NULL (data in buffering area are not sky), notify corresponding HARQ to enter
Journey triggers a non-self-adapting and retransmitted；In correlation technique, for the buffering area of corresponding HARQ processes
(buffer) processing is such, when new biography, and data or packet are saved in buffering area；Only
Confirmation (ACK) information is received, buffering area is not dealt with；When number of retransmissions exceed maximum times, then clearly
Except buffering area.
In correlation technique, terminal is when data need to retransmit, if the resource competed has been used
Finish, or resource is arrived without competition again, then data retransmission processes cannot be performed normally, can only be waited until
Resource contention is arrived, and ability executing data retransmission process is (so would tend to occur abnormal feelings in correlation technique
Condition is, it is necessary to wait long time to send success)；If number of retransmissions exceeds maximum times, it can make
The time delay for obtaining data transmission is elongated, ultimately results in packet loss.Another major reason of packet loss is in correlation technique,
Can only ceaselessly it be waited according to prior art to resource due to no competition, when never resource is arrived in competition,
Just abandon.
In order to solve problem present in the synchronized transmission mode of the upstream data under unauthorized carrier wave scene, this
Inventive embodiments under unauthorized carrier wave scene, will introduce the asynchronous sending mode or method of upstream data, i.e.
Carry HARQ process numbers to be scheduled by PDCCH, re-transmission is dispatched always by PDCCH.
In order to be better understood from various embodiments of the present invention, several concepts are first introduced：
Retransmit, refer to the transmission again of the packet to being transmitted across before；
New biography, refers to the first time transmission of the packet for not sent before one；
The synchronized transmission mode of upstream data in correlation technique under unauthorized carrier wave scene, i.e. terminal is received
Row authorize indicate subframe and send upstream data and between time interval, and terminal send upstream data
Time interval between corresponding to receiving, is fixed.It is shown in Figure 1, in the related art, if
The uplink authorization that terminal receives base station at the time of subframe 0 indicates that then terminal is from receiving up award all the time
Sub-frame interval is to send upstream data in 4 subframe (subframe numbers are 4) from weighing the subframe moment indicated；Eventually
Response will be received in the subframe (subframe numbers are 8) that sub-frame interval is 4 from the subframe for sending upstream data by holding
Message (such as nack message), if terminal receives the nack message of base station at the time of subframe numbers are 8,
Then to be retransmitted, and terminal be all the time from the subframe for receiving nack message in fixed sub-frame interval
To be retransmitted in 4 subframe (subframe numbers are 12).
Lower mask body introduces a kind of asynchronous transmission side of use upstream data of proposition of the embodiment of the present invention
Method, the implementation process of this method is such：
Terminal receives the PDCCH that base station is sent, and is indicated comprising uplink authorization, and the uplink authorization is taken in indicating
Identification information with HARQ processes, the terminal determines HARQ according to the identification information of HARQ processes
State of a process information, then terminal is according at least to uplink authorization instruction and HARQ state of a process information
Progress determines whether to triggering and once retransmits or trigger a new biography, specifically, referring to table 1, if phase
The NDI closed in HARQ information is turned over compared to the value in once being transmitted before the HARQ processes, or,
If up authorize indicate in the PDCCH identified with C-RNTI and the HARQ processes buffering area
For empty (data in buffering area be sky), or, if this HARQ process or transmission block (TB,
Transport Block) first uplink scheduling received, i.e. the data before without any NDI, or
Person, indicates in accidental access response if up authorizing, then notifies corresponding HARQ process triggers once
New biography；Otherwise, corresponding HARQ process triggers are notified once to retransmit.
Table 1
In embodiments of the present invention, re-transmission and new biography can use identical HARQ processes or different
HARQ processes are, it is necessary to which explanation, when using identical HARQ processes, terminal can be first
The variable time interval (identical subframe) of the secondary HARQ processes for transmitting the packet retransmits the packet；
Referring to Fig. 2, if the uplink authorization that terminal receives base station at the time of subframe 0 is indicated, if terminal judges
To carry out new biography, then terminal (can be able to be the new biography moment and receive uplink authorization instruction in subframe numbers for 5
Subframe be not fixed intervals, and uplink authorization instruction in indicate this interval) carry out new biography；If eventually
The uplink authorization for receiving base station at the time of subframe numbers are 8 is held to indicate, if terminal is judged as being retransmitted,
Then terminal subframe numbers be 14 (can be retransmission time and receive uplink authorization instruction subframe be not fixed between
Every, or uplink authorization instruction in indicate this interval) on retransmitted.It can be seen that, in present invention implementation
In example, new biography and the sub-frame interval retransmitted are different.
Here, RV is used for the different editions for showing to send data, to be carried out when receiving data according to version
Merge.The time interval sent in the embodiment of the present invention is not fixed, i.e., the embodiment of the present invention using it is variable when
Between interval send upstream data to solve technical problem have important influence, specifically, in correlation technique
Interval is fixed, if regular time does not have resource can only just to be waited next solid for re-transmission or new biography
Fixed interval can be just transmitted；And be spaced and do not fix in the embodiment of the present invention, then can be when having resource
It is transmitted.Certainly, in another embodiment of the invention, re-transmission and new biography can also use correlation technique
In fixed intervals.Whether ACK information and ACK to retransmitting and playing an important role in correlation technique, and this
In inventive embodiments, will not there are ACK information and NACK again, it is according to the institute of table 1 that whether terminal, which retransmits,
The information shown is determined.
In the embodiment of the present invention, the processing for corresponding buffering area is such, each HARQ processes pair
There should be a buffering area (buffer)；
Method one：When new biography, store data into buffering area, have next time new biography again by data cover
, removed equivalent to original buffering area, new data are saved.
Method two：When receiving retransfer scheduling, retransmit and new biography is not same HARQ processes, it would be desirable to weight
The data of biography are transferred in the buffering area of the HARQ processes retransmitted.
Both the above method, when the resource competed is using finishing, data are not yet sent successfully completely, by institute
The buffering area for having correlation is removed.Resource contention process is carried out for base station, base station needs to notify that terminal resource is competing
The result striven, the time-frequency domain information comprising the resource competed.Or, buffering area retains, and sets timer
(being set in units of unauthorized carrier wave), new uplink authorization is not received more than certain time and is indicated, is removed
All buffering areas.
The technical solution of the present invention is further elaborated with specific embodiment below in conjunction with the accompanying drawings.
Embodiment one
For problem present in above-mentioned correlation technique, the embodiment of the present invention is provided on a kind of unauthorized carrier wave
The sending method of row data, applied to terminal, the function that this method is realized can pass through the processing in terminal
Device caller code realizes that certain program code can be stored in computer-readable storage medium, it is seen then that
The terminal at least includes processor and storage medium.
Fig. 3 illustrates for the implementation process of the sending method of the unauthorized carrier wave upstream data of the embodiment of the present invention one
Figure, as shown in figure 3, this method includes：
Step S101, the terminal receives the uplink authorization instruction that base station is sent, during the uplink authorization is indicated
At least include the identification information of the first HARQ processes；
Here, the first HARQ processes should be that the process i.e. base station for handling authorization resources is indicated in uplink authorization
The new HARQ processes of middle instruction.
Step S102, the terminal obtains the first HARQ according to the identification information of the HARQ processes
State of a process information；
Here, the first HARQ states of a process information at least includes NDI in the first HARQ processes
Value, the buffer state of the first HARQ processes；
Step S103, the terminal is indicated and/or the first HARQ processes according to the uplink authorization
Status information determines whether to be retransmitted or new biography；
Here, step S103 determines whether to be retransmitted or new biography according to table 1.
Step S104, the terminal obtains the time-frequency domain information of the resource competed；
Step S105, if the terminal determines to be retransmitted, the terminal utilizes the first HARQ
Process is sent before being retransmitted in resource corresponding with the time-frequency domain information in the first HARQ process buffering areas
Upstream data, or the terminal existed using the first HARQ processes different from the 2nd HARQ processes
The upper line number of the transmission before the 2nd HARQ processes is retransmitted in resource corresponding with the time-frequency domain information
According to.
Here, the 2nd HARQ processes can be using such a way come really during implementing
Fixed, the information during the terminal is indicated according to uplink authorization determines different from the first HARQ processes the
Two HARQ processes.
In the embodiment of the present invention, if the terminal determine that carrying out new biography, then terminal is entered using the first HARQ
One upstream data bag of new biography in the corresponding resource of time-frequency domain information described in Cheng Yu.
The asynchronous transmission of upstream data in the embodiment of the present invention has two kinds of implementations, mode one, retransmit with
New biography use same HARQ processes, but retransmit from new biography when sub-frame interval it is different, in mode once,
Uplink authorization only includes the identification information of the first HARQ processes in indicating.Mode two, retransmit is not with new biography
Same HARQ processes, then under which two, indicate to include the first HARQ if up authorizing
The identification information of process and the 2nd HARQ processes, at this moment, terminal utilize the first HARQ processes by second
Data in HARQ process buffering areas are retransmitted, and the data of original 2nd HARQ processes are saved in
In the buffering area of first HARQ processes.Under mode two, for example, upstream data is sent before and uses HARQ
Process 1 (i.e. the 2nd HARQ processes), and retransmit using HARQ processes 2 (i.e. the first HARQ processes).
In the embodiment of the present invention, when being retransmitted using the first HARQ processes, methods described also includes：
Step S106, the terminal removes the upstream data of the corresponding buffering area of the 2nd HARQ processes
Move on to the corresponding buffering area of the first HARQ processes；
Step S107, if the resource is using finishing, no matter whether data send successfully completely, the end
Remove the corresponding buffering area of all processes on the carrier wave in end.
In the embodiment of the present invention, before the terminal receives the uplink authorization instruction that base station is sent, the side
Method also includes：The terminal carries out the unauthorized carrier wave and authorizes the carrier aggregation of carrier wave；Or, it is described
Terminal completes the dual link between the cell of the unauthorized carrier wave and the cell of mandate carrier wave.
In the embodiment of the present invention, the terminal and the base station can be provided on the unauthorized carrier wave
Source is competed, and when terminal carries out resource contention, methods described also includes：The terminal is in the unauthorized load
Resource contention is carried out on ripple, the time-frequency domain information of the resource competed is sent to base station, then base station again to
Terminal sends uplink authorization and indicated；Accordingly, step S104, the terminal obtain the resource that competes when
Frequency domain information, including：The terminal obtains the time-frequency domain information of resource from uplink authorization instruction.Work as base station
When carrying out resource contention, methods described also includes：It is competing that the base station carries out resource on the unauthorized carrier wave
Strive, the time-frequency domain information competed to resource is carried on during uplink authorization is indicated and is sent to terminal；Now, walk
Rapid S104, the terminal obtains the time-frequency domain information of the resource competed, including：The terminal is from described
Row authorizes the time-frequency domain information that the resource is obtained in instruction.
In the embodiment of the present invention, the terminal is indicated and/or the first HARQ according to the uplink authorization
State of a process information determines whether to be retransmitted or new biography, including：
Referring to table 1, if the value of the NDI in the first HARQ processes compares the first HARQ
Once or in the 2nd HARQ process transmissions NDI value is turned over before process, or, if up
Authorize indicate using in the PDCCH that C-RNTI is identified and the first HARQ processes buffering area as
Sky, or, if the first HARQ processes or transmission block receive the scheduling of uplink authorization instruction for the first time,
Or, indicated if up authorizing in accidental access response, it is determined that be new biography；
Otherwise, it is determined that to retransmit.
In the embodiment of the present invention, when being retransmitted using the first HARQ processes, the first HARQ
The sub-frame interval and the sub-frame interval of the first HARQ process new biographies that process is retransmitted are different, wherein
Sub-frame interval refers to receive the interval between the subframe and re-transmission or the subframe of new biography of uplink authorization instruction.
Embodiment two
In the embodiment of the present invention, there are cell 1 and cell 3 the two cells in base station, and wherein cell 1 is using awarding
Carrier wave is weighed, cell 3 uses unauthorized carrier wave, and cell 1 and cell 3 can carry out carrier aggregation.It is related
In technology, it is polymerize for cell 1 with the cell of unauthorized carrier wave by way of dual link and is realized
During the transmission of row data, naturally it is also possible to the asynchronous transmission side of the upstream data proposed using the embodiment of the present invention
Method realizes the transmission of upstream data.In embodiments of the present invention, retransmit using same HARQ to enter with new biography
Journey, but retransmit from new biography when sub-frame interval it is different (referring to Fig. 2), and each HARQ processes to that should have one
Individual buffering area；The asynchronous transmission method of upstream data provided in an embodiment of the present invention, including：
Step S201, terminal is configured cell 1 and cell 3, is then carried using cell 1 and cell 3
Ripple polymerize；
Here, cell 3 is unauthorized carrier wave.
Step S202, terminal performs the resource contention process of cell 3, and successful contention will be competed to resource
The time-frequency domain information of the resource arrived notifies base station；
Step S203, base station is received after the time-frequency domain information of the resource competed, and base station sends up to terminal
Authorize and indicate；
Step S204, the uplink authorization that terminal receives base station indicates that decoding carries out respective handling：
Specifically, 1) terminal receives the uplink authorization instruction of base station, is found after decoding：The uplink authorization is indicated
It is to be directed to HARQ processes 2, is the scheduling that the process first is received, i.e., before without any NDI
Data (process receive scheduling for the first time), and the buffering area of the process is sky, then terminal execution new biography
Operate (the persond eixis information indicated according to uplink authorization, upstream data is sent on specified TTI),
And lower relevant information is preserved, the data comprising transmission, NDI is now 1 etc.；Now, if the process
Buffering area non-NULL (i.e. buffering area is not sky), then terminal is not processed, and abandons uplink authorization instruction.
2) terminal is received again by the uplink authorization instruction of base station, is found after decoding：It is pin that the uplink authorization, which is indicated,
To HARQ processes 2, and NDI is 0, and the NDI (being 1) transmitted relative to last time is turned over
Turn, no matter whether the buffering area of the process is empty, then terminal performs new biography operation and (indicated according to uplink authorization
On persond eixis information, send upstream data on specified TTI), and preserve lower relevant information.It is described
Relevant information comprise at least the data sent, the identification information of HARQ processes and NDI state (NDI this
When 0) etc. be.
Step S205, the resource competed is using finishing, and data are not yet sent successfully completely, by cell 3
The related buffering area of all HARQ processes is removed.
Step S206, terminal performs the resource contention process and successful contention of cell 3 to resource again, will be competing
The time-frequency domain information for the resource striven notifies base station；
Step S207, base station sends uplink authorization to terminal and indicated；
Step S208, the uplink authorization that terminal receives base station is indicated, respective handling is performed after decoding：
Specifically, 1) terminal receives the uplink authorization instruction of base station, is found after decoding：The uplink authorization is indicated
It is to be directed to HARQ processes 1, in the PDCCH identified with C-RNTI and the HARQ processes are slow
Qu Weikong is rushed, then terminal performs new biography operation (the persond eixis information indicated according to uplink authorization, in finger
Upstream data is sent on fixed TTI), and preserve lower relevant information.The relevant information comprises at least what is sent
The identification information (ID, such as HARQ process number) and NDI state (NDI of data, HARQ processes
0) etc. now for.
2) terminal is received again by the uplink authorization instruction of base station, is found after decoding：It is pin that the uplink authorization, which is indicated,
To the buffering area non-NULL of HARQ processes 1, now HARQ processes 1, and NDI is 0, relatively
The NDI (being 0) transmitted in last time is not overturn, then terminal performs retransmission operation (according to up
The persond eixis information on indicating is authorized, upstream data is sent on specified TTI).Now, if buffering
Area is sky, then terminal is not processed, and ignores the instruction of this uplink authorization.
3), if the uplink authorization received is indicated in accidental access response, no matter whether NDI overturns,
Whether it is empty regardless of buffering area, terminal performs new biography operation.
Embodiment three
In the embodiment of the present invention, there are cell 1 and cell 3 the two cells in base station, and wherein cell 1 is using awarding
Carrier wave is weighed, cell 3 uses unauthorized carrier wave, and cell 1 and cell 3 can carry out carrier aggregation.For
Cell 1 carries out polymerizeing realizing that upstream data is sent with the cell of unauthorized carrier wave by way of dual link
When, naturally it is also possible to the asynchronous transmission method of the upstream data proposed using the embodiment of the present invention realizes upper line number
According to transmission.In embodiments of the present invention, it is not same HARQ processes, this method bag to retransmit with new biography
Include：
Step S301, terminal is configured cell 1 and cell 3, and carrying out carrier wave using cell 1 and cell 3 gathers
Close；
Here, cell 3 is unauthorized carrier wave.
Step S302, base station performs the resource contention process of cell 3, and successful contention will be competed to resource
The time-frequency domain information of the resource arrived notifies terminal；
Step S303, base station sends uplink authorization to terminal and indicated；
Here, base station carries out uplink scheduling to terminal, and uplink authorization is indicated to be sent to terminal.
Step S304, the uplink authorization that terminal receives base station is indicated, respective handling is performed after decoding：
1) terminal receives the uplink authorization instruction of base station, is found after decoding：It is to be directed to that the uplink authorization, which is indicated,
HARQ processes 2, it is the scheduling for receiving uplink authorization instruction the first time of process 2, i.e., does not appoint before
What NDI data (process receives scheduling for the first time), and the buffering area of the process is empty, then terminal
Performing new biography operation, (the persond eixis information indicated according to uplink authorization is sent on specified TTI
Row data), and lower relevant information is preserved, the data comprising transmission, NDI is now 1 etc.；Now, if
The buffering area non-NULL of the process, then terminal do not process, abandon the uplink authorization instruction.
2) terminal is received again by the uplink authorization instruction of base station, is found after decoding：It is pin that the uplink authorization, which is indicated,
To HARQ processes 2, and NDI is 0, and the NDI (being 1) transmitted relative to last time is turned over
Turn, no matter whether the buffering area of the process is empty, then terminal performs new biography operation and (indicated according to uplink authorization
On persond eixis information, send upstream data on specified TTI), and preserve lower relevant information.It is described
Relevant information comprise at least the data sent, the identification information of HARQ processes and NDI state (NDI this
When 0) etc. be.
Step S305, the resource competed is using finishing, and data are not yet sent successfully completely, by all correlations
Buffering area remove.
Step S306, base station performs the resource contention process of cell 3 again, and successful contention is to resource, leads to
Know terminal, the time-frequency domain information comprising the resource competed；
Step S307, base station sends uplink authorization to terminal and indicated；
Step S308, the uplink authorization that terminal receives base station is indicated, respective handling is performed after decoding：
Specifically, 1) terminal receives the uplink authorization instruction of base station, is found after decoding：The uplink authorization is indicated
It is to be directed to HARQ processes 1, in the PDCCH identified with C-RNTI and the HARQ processes
Buffering area for sky, then terminal perform new biography operation (the persond eixis information indicated according to uplink authorization,
Upstream data is sent on the TTI specified), and preserve lower relevant information.The relevant information, which is comprised at least, to be sent
Data, the identification information of HARQ processes and NDI state (NDI is now 0) etc..
2) terminal is received again by the uplink authorization instruction of base station, is found after decoding：It is pin that the uplink authorization, which is indicated,
To HARQ processes 1, while carrying another process HARQ2, terminal knows that needs are checked
The buffering area non-NULL of the buffering area of HARQ processes 2, now HARQ processes 2, and uplink authorization instruction
Middle NDI is 0, and the NDI (being 0) transmitted relative to the last time of HARQ processes 2 is not overturn,
Terminal performs retransmission operation, and (the persond eixis information indicated according to uplink authorization is sent out on specified TTI
Send upstream data), it is necessary to the buffering area of HARQ processes 2 is moved on in HARQ processes 1, include correlation
Information, the data comprising transmission, NDI is now 0 etc..Now, if the buffering area of HARQ processes 2
For sky, then terminal is not processed, and ignores the instruction of this uplink authorization.
If 3) uplink authorization received is indicated in accidental access response, no matter whether NDI overturns,
Whether it is empty regardless of buffering area, terminal performs new biography operation.
Step S309, the resource competed is using finishing, and data are not yet sent successfully completely, will retain cell
The related buffering area of 3 all HARQ processes, while setting timing (to be directed to cell according to unauthorized carrier wave
3 set timing, and such as now timed length is 6ms), more than 6ms, cell 3 does not receive new up award
Power is indicated, removes all buffering areas.
Example IV
Based on foregoing embodiment, the embodiment of the present invention provides a kind of terminal, the reception included by the terminal
Unit, first acquisition unit, determining unit, each unit of second acquisition unit and retransmission unit, and respectively
Each module included by unit, can be realized by the processor in terminal, certainly also can be by specific
Logic circuit realize；During specific embodiment, processor can for central processing unit (CPU),
Microprocessor (MPU), digital signal processor (DSP) or field programmable gate array (FPGA) etc..
Fig. 4 is the composition structural representation of the terminal of the embodiment of the present invention four, as shown in figure 4, the terminal 400
Including：Receiving unit 401, first acquisition unit 402, determining unit 403, the and of second acquisition unit 404
Retransmission unit 405, wherein：
The receiving unit 401, the uplink authorization for receiving base station transmission indicates that the uplink authorization refers to
At least include the identification information of the first HARQ processes in showing；
The first acquisition unit 402, for obtaining described the according to the identification information of the HARQ processes
One HARQ state of a process information, the HARQ states of a process information at least includes the first HARQ
Whether NDI values overturn in process, whether the buffer area of the first HARQ processes is empty；
First determining unit 403, for being indicated and/or the first HARQ according to the uplink authorization
State of a process information determines whether to be retransmitted or new biography；
The second acquisition unit 404, the time-frequency domain information for obtaining the resource competed；
The retransmission unit 405, if determine to be retransmitted for the terminal, the terminal utilizes profit
What is sent before being retransmitted with the first HARQ processes in resource corresponding with the time-frequency domain information is up
Data, or the terminal using the first HARQ process different from the 2nd HARQ processes with it is described
The upstream data of the transmission before the 2nd HARQ processes is retransmitted in the corresponding resource of time-frequency domain information.
In the embodiment of the present invention, when being retransmitted using the 2nd HARQ processes, the terminal also includes removing
Unit and clearing cell are moved, wherein：
Unit is moved, for the upstream data of the corresponding buffering area of the 2nd HARQ processes to be moved into institute
State the corresponding buffering area of the first HARQ processes；
Clearing cell, if for the resource using finishing, no matter whether data send successfully, clearly completely
Except the corresponding buffering area of all processes.
In the embodiment of the present invention, the terminal also include processing unit, for carry out the unauthorized carrier wave and
Authorize the carrier aggregation of carrier wave；Or, the cell for completing the unauthorized carrier wave and authorize carrier wave cell it
Between dual link.
In the embodiment of the present invention, the terminal also includes competitive unit and transmitting element, wherein：
The competitive unit, for carrying out resource contention on the unauthorized carrier wave,；
The transmitting element, for the time-frequency domain information of the resource competed to be sent into base station.
In the embodiment of the present invention, the second acquisition unit, for obtaining institute from uplink authorization instruction
State the time-frequency domain information of resource.
In the embodiment of the present invention, first determining unit, if in the first HARQ processes
NDI value compares before the first HARQ processes NDI once or in the 2nd HARQ process transmissions
Value be turned over, or, indicated if up authorizing in the PDCCH identified with C-RNTI and institute
It is sky to state the buffering area of the first HARQ processes, or, if the first HARQ processes or transmission block
The scheduling of uplink authorization instruction is received for the first time, or, indicated if up authorizing in accidental access response,
Then it is defined as new biography；
Otherwise, it is determined that to retransmit.
In the embodiment of the present invention, when being retransmitted using the first HARQ processes, the first HARQ
The sub-frame interval and the sub-frame interval of the first HARQ process new biographies that process is retransmitted are different, wherein
Sub-frame interval refers to receive the interval between the subframe and re-transmission or the subframe of new biography of uplink authorization instruction.
It need to be noted that be：The description of above terminal embodiment, be with above method description it is similar,
With same embodiment of the method identical beneficial effect, therefore do not repeat.For in terminal embodiment of the present invention
The ins and outs not disclosed, those skilled in the art refer to the description of the inventive method embodiment and understand,
To save length, repeat no more here.
It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text means and real
Apply the relevant special characteristic of example, structure or characteristic include at least one embodiment of the present invention in.Therefore,
" in one embodiment " or " in one embodiment " occurred everywhere in entire disclosure not necessarily refers to
Identical embodiment.In addition, these specific feature, structure or characteristics can be combined in any suitable manner
In one or more embodiments.It should be understood that in various embodiments of the present invention, the sequence of above-mentioned each process
Number size be not meant to the priority of execution sequence, the execution sequence of each process should be patrolled with its function and inherence
Collect and determine, any limit is constituted without tackling the implementation process of the embodiment of the present invention.The embodiments of the present invention
Sequence number is for illustration only, and the quality of embodiment is not represented.
It should be noted that herein, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or dress including a series of key elements
Putting not only includes those key elements, but also other key elements including being not expressly set out, or also including being
This process, method, article or the intrinsic key element of device.In the absence of more restrictions, by
The key element that sentence "including a ..." is limited, it is not excluded that in the process including the key element, method, thing
Also there is other identical element in product or device.
, can in several embodiments provided herein, it should be understood that disclosed apparatus and method
To realize by another way.Apparatus embodiments described above are only schematical, for example, institute
The division of unit is stated, only a kind of division of logic function there can be other dividing mode when actually realizing,
Such as：Multiple units or component can be combined, or be desirably integrated into another system, or some features can be neglected
Slightly, or do not perform.In addition, the coupling each other of shown or discussed each part or directly coupling
Close or communication connection can be by some interfaces, the INDIRECT COUPLING or communication connection of equipment or unit, can
Be it is electrical, machinery or other forms.
The above-mentioned unit illustrated as separating component can be or may not be it is physically separate, as
The part that unit is shown can be or may not be physical location；Both a place can be located at, also may be used
To be distributed on multiple NEs；Part or all of unit therein can be selected according to the actual needs
Realize the purpose of this embodiment scheme.
In addition, each functional unit in various embodiments of the present invention can be fully integrated into a processing unit,
Can also be each unit individually as a unit, can also two or more units be integrated in one
In individual unit；Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ hardware adds soft
The form of part functional unit is realized.
One of ordinary skill in the art will appreciate that：Realize that all or part of step of above method embodiment can
To be completed by the related hardware of programmed instruction, foregoing program can be stored in embodied on computer readable storage
In medium, the program upon execution, performs the step of including above method embodiment；And foregoing storage is situated between
Matter includes：Movable storage device, read-only storage (Read Only Memory, ROM), magnetic disc or
CD etc. is various can be with the medium of store program codes.
Or, if the above-mentioned integrated unit of the present invention is realized using in the form of software function module and as independently
Production marketing or in use, can also be stored in a computer read/write memory medium.Based on so
Understanding, the part that the technical scheme of the embodiment of the present invention substantially contributes to prior art in other words can
To be embodied in the form of software product, the computer software product is stored in a storage medium, bag
Some instructions are included to so that a computer equipment (can be personal computer, server or network
Equipment etc.) perform all or part of each of the invention embodiment methods described.And foregoing storage medium bag
Include：Movable storage device, ROM, magnetic disc or CD etc. are various can be with the medium of store program codes.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited to
This, any one skilled in the art the invention discloses technical scope in, can readily occur in
Change or replacement, should all be included within the scope of the present invention.Therefore, protection scope of the present invention should
It is defined by the scope of the claims.
Claims (10)
1. a kind of sending method of unauthorized carrier wave upstream data, it is characterised in that methods described includes：
The terminal receives the uplink authorization that base station sends and indicated, the uplink authorization at least includes the in indicating
The identification information of one hybrid automatic repeat-request HARQ processes；
The terminal obtains the shape of the first HARQ processes according to the identification information of the HARQ processes
State information, the first HARQ states of a process information at least includes new data in the first HARQ processes
Indicate NDI values, the buffer state of the first HARQ processes；
The terminal is indicated according to the uplink authorization and/or the first HARQ state of a process information is true
It is fixed whether to be retransmitted or new biography；
The terminal obtains the time-frequency domain information of the resource from uplink authorization instruction；
If the terminal determines to be retransmitted, the terminal is existed using the first HARQ processes
The upstream data sent before being retransmitted in resource corresponding with the time-frequency domain information, or the terminal are utilized
The first HARQ process different from the 2nd HARQ processes is in resource corresponding with the time-frequency domain information
Retransmit the upstream data of the transmission before the 2nd HARQ processes.
2. according to the method described in claim 1, it is characterised in that enter when using the first HARQ
During Cheng Chongchuan, methods described also includes：
The upstream data of the corresponding buffering area of the 2nd HARQ processes is moved described first by the terminal
The corresponding buffering area of HARQ processes.
3. method according to claim 2, it is characterised in that methods described also includes：
If the resource is using finishing, no matter whether data send successfully completely, and the terminal is removed all
The corresponding buffering area of process.
4. according to the method described in claim 1, it is characterised in that receive what base station was sent in the terminal
Before uplink authorization is indicated, methods described also includes：
The terminal carries out the unauthorized carrier wave and authorizes the carrier aggregation of carrier wave；Or,
The terminal completes the dual link between the cell of the unauthorized carrier wave and the cell of mandate carrier wave.
5. the method according to any one of Claims 1-4, it is characterised in that methods described also includes：
The terminal carries out resource contention on the unauthorized carrier wave, and the time-frequency domain of the resource competed is believed
Breath is sent to base station.
6. the method according to any one of Claims 1-4, it is characterised in that the terminal is according to institute
State that uplink authorization is indicated and/or the first HARQ state of a process information determines whether to be retransmitted or newly
Pass, including：
If the value of the NDI in the first HARQ processes is compared before the first HARQ processes once
Or NDI value is turned in the 2nd HARQ process transmissions, or, indicated if up authorizing
In the physical downlink control channel PDCCH identified with the Radio Network Temporary Identifier C-RNTI of cell and
The buffering area of the first HARQ processes is sky, or, if the first HARQ processes or transmission
Block receives the scheduling of uplink authorization instruction for the first time, or, indicated if up authorizing in accidental access response
In, it is determined that it is new biography；
Otherwise, it is determined that to retransmit.
7. the method according to any one of Claims 1-4, it is characterised in that when utilization described first
When HARQ processes are retransmitted, the sub-frame interval that the first HARQ processes are retransmitted and the first HARQ
The sub-frame interval of process new biography is different, and wherein sub-frame interval refers to the subframe for receiving uplink authorization instruction
With the interval between re-transmission or the subframe of new biography.
8. a kind of terminal, it is characterised in that the terminal includes receiving unit, first acquisition unit, determination
Unit, second acquisition unit and retransmission unit, wherein：
The receiving unit, the uplink authorization for receiving base station transmission is indicated, during the uplink authorization is indicated
At least include the identification information of the first hybrid automatic repeat-request HARQ processes；
The first acquisition unit, for obtaining described first according to the identification information of the HARQ processes
HARQ state of a process information, the first HARQ states of a process information at least includes the first HARQ
Whether NDI values overturn in process, whether the buffer area of the first HARQ processes is empty；
First determining unit, for being entered according to uplink authorization instruction and/or the first HARQ
The status information of journey determines whether to be retransmitted or new biography；
The second acquisition unit, the time-frequency domain letter for obtaining the resource from uplink authorization instruction
Breath；
The retransmission unit, if determine to be retransmitted for the terminal, the terminal utilizes institute
State the upper line number sent before the first HARQ processes are retransmitted in resource corresponding with the time-frequency domain information
According to, or the terminal using the first HARQ process different from the 2nd HARQ processes with it is described when
The upstream data of the transmission before the 2nd HARQ processes is retransmitted in the corresponding resource of frequency domain information.
9. terminal according to claim 8, it is characterised in that first determining unit, for such as
The value of NDI in really described first HARQ processes is compared once or described before the first HARQ processes
New data indicates that NDI value is turned in 2nd HARQ process transmissions, or, refer to if up mandate
Show in the physical downlink control channel PDCCH identified with the Radio Network Temporary Identifier C-RNTI of cell
And the buffering area of the first HARQ processes for sky, or, if the first HARQ processes or
Transmission block receives the scheduling of uplink authorization instruction for the first time, or, indicated if up authorizing in Stochastic accessing
In response, it is determined that be new biography；
Otherwise, it is determined that to retransmit.
10. terminal according to claim 8 or claim 9, it is characterised in that as utilization the 2nd HARQ
When process is retransmitted, the terminal also includes moving unit and clearing cell, wherein：
It is described to move unit, for the upstream data of the corresponding buffering area of the 2nd HARQ processes to be moved
To the corresponding buffering area of the first HARQ processes；
The clearing cell, if for the resource using finishing, no matter whether data send successfully completely,
Remove the corresponding buffering area of all processes.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610074258.5A CN107027180B (en) | 2016-02-02 | 2016-02-02 | The sending method and terminal of unauthorized carrier wave upstream data |
| PCT/CN2016/104756 WO2017133285A1 (en) | 2016-02-02 | 2016-11-04 | Method for sending unlicensed carrier uplink data, and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610074258.5A CN107027180B (en) | 2016-02-02 | 2016-02-02 | The sending method and terminal of unauthorized carrier wave upstream data |
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| Publication Number | Publication Date |
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| CN107027180A true CN107027180A (en) | 2017-08-08 |
| CN107027180B CN107027180B (en) | 2019-08-30 |
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| WO (1) | WO2017133285A1 (en) |
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| Publication number | Publication date |
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| WO2017133285A1 (en) | 2017-08-10 |
| CN107027180B (en) | 2019-08-30 |
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