CN106788913A - A kind of mixing automatic retransmission processing method and base station based on LAA - Google Patents
A kind of mixing automatic retransmission processing method and base station based on LAA Download PDFInfo
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- CN106788913A CN106788913A CN201510815700.0A CN201510815700A CN106788913A CN 106788913 A CN106788913 A CN 106788913A CN 201510815700 A CN201510815700 A CN 201510815700A CN 106788913 A CN106788913 A CN 106788913A
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
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- Mobile Radio Communication Systems (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
The embodiment of the invention discloses a kind of mixed automatic retransferring method based on LAA, including：RRU indicates to send downlink data packet to user equipment (UE) in subframe N+L according to BBU in the scheduling of subframe N；RRU receives the first feedback message that UE is returned according to downlink data packet in N+M, and forwards the first feedback message to BBU；BBU receives the first feedback message in subframe N+P, and obtains the channel status that auxiliary in subframe N+L accesses channel；If channel status is down state, the first feedback message is modified to the second feedback message by BBU；BBU passes packet again according to the second feedback message generation downlink data packet；Wherein, then pass packet NDI do not overturn it is constant with redundant version number；BBU is sent to UE by RRU in subframe N+P and passes packet again.The embodiment of the invention also discloses a kind of base station, using the present invention, the method for realizing the mixed automatic retransfer (HARQ) under a kind of LAA improves data throughout and gain.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of mixing automatic retransmission processing method based on LAA and
Base station.
Background technology
With sharply increasing for message volume, 3GPP (3rd Generation Partnership Project,
Third generation partnership project, abbreviation 3GPP) being increasingly not enough to provide network higher holds to authorize frequency spectrum to seem
Amount.In order to further improve the utilization of frequency spectrum resource, 3GPP is just discussing how to make with the help of frequency spectrum is authorized
With unlicensed spectrum, such as 5GHz frequency ranges.These unlicensed spectrums are presently mainly WiFi (Wireless
Fidelity, Wireless Fidelity, abbreviation WiFi), bluetooth, the system such as radar and medical treatment using.In general,
It is the access technology for having authorized frequency range to design, such as LTE (Long Term Evolution, Long Term Evolution, abbreviation
LTE) be not suitable for being used in unauthorized frequency range, because this kind of access technologies of LTE are to spectrum efficiency and user's body
The requirement for testing optimization is very high.However, carrier aggregation function allow LTE is deployed in that unauthorized frequency range is changed into can
Energy.3GPP proposes the general of LAA (LTEAssistedAccess, LTE auxiliary are accessed, abbreviation LAA)
Read, unlicensed spectrum is used by the help of LTE mandate frequency spectrums.
For LTE system, because the unlicensed spectrum resource available moment is therefore data at any time
The initial time of transmission is also that at any time, in this case, how LTE system scheduler is adapted under LAA
Channel is quickly used, effectively lifting transmission gain is the focus of current research.
The content of the invention
Embodiment of the present invention technical problem to be solved is, there is provided a kind of mixing based on LAA is weighed automatically
Pass processing method.LTE system scheduler in the prior art can be solved to be difficult in adapt to quickly be accounted in LAA lower channels
With the problem with the lower lifting transmission gain of release.
In order to solve the above-mentioned technical problem, a kind of mixing based on LAA is the embodiment of the invention provides to weigh automatically
Processing method is passed, including：
The radio frequency remote unit RRU is indicated in son according to baseband processing unit BBU in the scheduling of subframe N
Frame N+L sends downlink data packet to user equipment (UE)；
The RRU receives the first feedback message that the UE is returned according to the downlink data packet in N+M,
And forward first feedback message to the BBU；
The BBU receives first feedback message in subframe N+P, and obtains in the subframe N+L
Auxiliary accesses the channel status of channel；
If the channel status is down state, first feedback message is modified to second by the BBU
Feedback message；
The BBU passes packet again according to second feedback message generation downlink data packet；Wherein,
The NDI for passing packet again does not overturn constant with redundant version number；
The BBU passes packet again by the RRU in subframe N+P to described in UE transmissions；Its
In, N, L, M and P are the integer more than 0, and L ＜ M ＜ P.
It is described to obtain the letter that auxiliary in the subframe N+L accesses channel in the first possible implementation
Road state includes：
Obtained according to default Channel Status Table and the channel status for accessing channel is aided in the subframe N+L.
With reference to the first possible implementation of first aspect, in second possible implementation, institute
State and obtained before the channel status for accessing channel is aided in the subframe N+L according to default Channel Status Table,
Also include：
The RRU is often detected when aiding in accessing the channel status of channel described in a sub- frame in, to described
BBU notifies the channel status of the auxiliary access channel in the subframe of current detection；
The channel status that the auxiliary in the subframe of current detection accesses channel recorded channel shape by the BBU
In state table.
With reference in a first aspect, in the third possible implementation, the number of retransmissions that packet is passed again
It is constant.
With reference in a first aspect, in the 4th kind of possible implementation, L=2, M=6, P=8.
Embodiment of the present invention second aspect provides a kind of base station, including：RRU and BBU；
The RRU, for indicating to be set to user in subframe N+L in the scheduling of subframe N according to the BBU
Standby UE sends downlink data packet；The UE is returned according to the downlink data packet first is received in N+M
Feedback message, and forward first feedback message to the BBU；
The BBU, for receiving first feedback message in subframe N+P, and obtains the subframe
Auxiliary accesses the channel status of channel in N+L；If the channel status is down state, by described first
Feedback message is modified to the second feedback message；The downlink data packet is generated according to second feedback message
Packet is passed again；Wherein, the NDI that packet is passed again does not overturn constant with redundant version number；In subframe
N+P passes packet again by the RRU to described in UE transmissions；Wherein, N, L, M and P are equal
It is the integer more than 0, and L ＜ M ＜ P.
With reference to second aspect, in the first possible implementation, the BBU obtains the subframe N+L
The channel status that interior auxiliary accesses channel is specifically included：
Obtained according to default Channel Status Table and the channel status for accessing channel is aided in the subframe N+L.
With reference to the first possible implementation of second aspect, in second possible implementation, institute
State RRU be additionally operable to often detect described in a sub- frame in aid in access channel channel status when, to described
BBU notifies the channel status of the auxiliary access channel in the subframe of current detection；
The BBU is additionally operable to the channel status that the auxiliary accesses channel in the subframe by current detection and recorded
In Channel Status Table.
With reference to the first possible implementation of second aspect, in the third possible implementation, state
The number of retransmissions for passing packet again is constant.
With reference to the first possible implementation of second aspect, in the 4th kind of possible implementation, L=2,
M=6, P=10.
The embodiment of the present invention third aspect provides a kind of base station, including：One or more processors, storage
Device, bus system, transceiver and one or more programs, one or more of processors, described deposit
Reservoir is connected with the transceiver by the bus system；
Wherein, one or more of programs are stored in the memory, one or more of programs
Including instruction, the instruction makes the base station perform such as first aspect to first party when being performed by the base station
Method in the 4th kind of possible implementation in face described in any one.
Implement the embodiment of the present invention, have the advantages that：
Base station according to auxiliary access channel channel status, the ACK fed back according to downlink data packet to UE or
NACK is modified, and makes to pass again the NDI of packet and redundant version number keeps constant.Can LAA
The adaptation of lower mixed automatic retransfer, it is ensured that LTE system auxiliary access channel it is available when can quickly issue data,
Maximize using channel resource and increase throughput gain.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to implementing
Example or the accompanying drawing to be used needed for description of the prior art are briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of LTE communication system provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic flow sheet of mixed automatic retransfer based on LAA provided in an embodiment of the present invention；
Fig. 3 is a kind of specific schematic diagram of the mixed automatic retransfer of LAA provided in an embodiment of the present invention；
Fig. 4 is a kind of structural representation of base station provided in an embodiment of the present invention；
Fig. 5 is a kind of structural representation of user equipment provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
Property work under the premise of the every other embodiment that is obtained, belong to the scope of protection of the invention.
It is a kind of structural representation of LTE communication system provided in an embodiment of the present invention referring to Fig. 1, at this
In inventive embodiments, LTE communication system include base station 1 and user equipment 2, base station 1 include BBU11 and
RRU12, data are transmitted between base station 1 and user equipment 2 by radio open.Auxiliary accesses channel can be with
It is unauthorized spectral channel or mandate spectral channel, LTE communication system accesses channel and carries out data using auxiliary
Transmission, must carry out CCA (Clear to auxiliary access channel before channel is transmitted being accessed using auxiliary
Channel Assessment, CCA, clear channel assessment (CCA), abbreviation CCA), it is sky to access channel in auxiliary
Not busy state could obtain the right to use that auxiliary accesses channel, and be carried out data transmission by aiding in access channel,
That is LBT (ListenBefore Talk, listem-before-talk, abbreviation LBT) mechanism.Separately below with regard to down direction
The HARQ handling processes based on LAA are illustrated with up direction：
Down direction：Base station includes BBU (Building Base band Unit, baseband processing unit, abbreviation
BBU) and RRU (Radio Remote Unit, Remote Radio Unit, abbreviation RRU), BBU and RRU it
Between interact and RRU and UE (UserEquipment, user equipment, abbreviation UE) between carry out
There is certain time delay in interaction.BBU carries out downlink transfer in subframe N scheduling RRU in subframe N+L,
When reaching subframe N+L, RRU sends downlink data packet by radio open to UE, and UE receives descending
After packet, downlink data packet is decoded, if successfully decoded, returned to base station and confirm feedback message
ACK, if decoding failure, non-acknowledgement feedback message NACK is returned to base station, the RRU of base station is in subframe
N+M receives the first feedback message of user equipment return, and the first feedback message includes NACK or ACK,
Due to the time delay between BBU and RRU, BBU receives feedback message in subframe N+P, now BBU
The channel status that auxiliary in subframe N+L accesses channel is obtained, because RRU is in the N+L of transmission downlink data packet
If subframe in auxiliary access channel be down state, RRU cannot N+L subframes be successfully transmitted it is descending
Packet, then RRU is inaccurate in the first feedback message for downlink data packet that subframe N+P is received
It is true, it is necessary to be modified to the second feedback message to the first feedback message, the second feedback message is used to represent base station
It is down state to send auxiliary in the subframe of downlink data packet and access channel.It should be noted that RRU must
Must be got before subframe N+P and the channel status for accessing channel is aided in subframe N+L, the method for acquisition can
To be：RRU detects that auxiliary accesses the information state of channel, the subframe behind N+L subframes in subframe N+L
The channel status for detecting is reported to RRU, it is necessary to assure RRU received channel shape before subframe N+P
State, RRU aids in accessing the channel status of channel in local maintenance each subframe.Base station generates downlink data
That wraps passes packet again, and this passes NDI (the New Data Indicator, new data instruction, abbreviation of packet again
NDI) and redundant version number keep it is constant, i.e., with current NDI and current redundant version number (Redundancy
Version, abbreviation RV) it is identical, BBU sends this and passes packet again by RRU in subframe N+P to UE.
Wherein, N, L, M and P are the integer more than 0, and L ＜ M ＜ P.
It is a kind of mixing automatic retransmission processing method based on LAA provided in an embodiment of the present invention referring to Fig. 2,
In embodiments of the present invention, methods described includes：
S201, BBU carry out downlink transfer in subframe N scheduling RRU in subframe N+L.
Specifically, BBU is downlink data packet allocation of downlink transfer resource waiting for transmission, in subframe N to RRU
Send scheduling to indicate, scheduling is indicated for indicating RRU to send downlink data packet to UE in subframe N+L.
S202, RRU send downlink data packet in subframe N+L to UE.
Wherein, during the moment for reaching subframe N+L, RRU sends downlink data packet, downlink data packet to UE
Can be new biography packet or re-transmission packet.
S203, UE are decoded to the downlink data packet for receiving, and generate the first feedback message.
Specifically, UE returns to ACK to downlink data packet successfully decoded to base station, if decoding failure,
NACK is returned to base station.
S204, base station return to the first feedback message to RRU.
S205, BBU obtain the channel status that auxiliary in subframe N+L accesses channel.
Wherein, because channel transmission time is accessed in base station using auxiliary, if auxiliary accesses letter in subframe N+L
The channel status in road is down state, and the downlink data packet that base station sends cannot correctly reach UE, UE couples
The decoded result of the downlink data packet is not necessarily accurate, it is necessary to be carried out to the first feedback message that UE is returned
Amendment.
It should be noted that BBU must get auxiliary before the first feedback message is received accesses channel
Channel status.
S206, RRU receive the first feedback message in subframe N+M.
S207, RRU send the first feedback message to BBU.
S208, BBU receive the first feedback message in subframe N+P.
If S209, channel status are down state, the first feedback message is converted into the second feedback message.
S210, generation pass packet again, then pass the NDI of packet and do not overturn and redundant version number is constant.
Wherein, if a upper packet is new biography packet, then data are passed to retransmit packet, new biography number
According to the redundant version number RV=0 of bag, it is assumed that new data indicates NDI=1, then pass the RV=0 of packet, NDI again
Do not overturn and remain as 0；If to retransmit packet, its RV=1, NDI=1 then pass number to a upper packet again
RV=1 according to bag is constant, and NDI=1 does not also overturn.
S211, BBU send to RRU and pass packet again.
S212, RRU send to UE and pass packet again.
It should be noted that it is idle condition that if auxiliary accesses channel in subframe N+L, BBU is according to first
The type of feedback message is processed, if the first feedback message is ACK, represents current downlink data packet
Transmission success, starts to send next downlink data packet；If the first feedback message is NACK, represent current
Downstream packet transmission failure, generation passes packet again, then passes NDI upsets and the redundancy versions of packet
Number Jia 1.
Optionally, the channel status for obtaining auxiliary access channel in the subframe N+L includes：
Obtained according to default Channel Status Table and the channel status for accessing channel is aided in the subframe N+L.
Specifically, BBU safeguards auxiliary in a Channel Status Table, each subframe that is stored with Channel Status Table
Access the channel status of channel.
Optionally, described acquisition according to default Channel Status Table aids in access channel in the subframe N+L
Before channel status, also include：
The RRU is often detected when aiding in accessing the channel status of channel described in a sub- frame in, to described
BBU notifies the channel status of the auxiliary access channel in the subframe of current detection；
The channel status that the auxiliary in the subframe of current detection accesses channel recorded channel shape by the BBU
In state table.
Specifically, after RRU often detects a channel status for the auxiliary access channel of sub- frame in, current
Next subframe of subframe the result of detection is reported to BBU, for example, it is unlicensed spectrum that auxiliary accesses channel
Channel, the channel status of unlicensed spectrum channel, subframe is reported in subframe N+3 in RRU detection subframes N+2
Auxiliary accesses the channel status of channel in N+2.It should be noted that auxiliary accesses channel in subframe N+2
Channel status can also be reported in subframe N+4 and subframe N+5, to ensure that BBU is receiving first
Channel status is got before the subframe of feedback message.
Optionally, the number of retransmissions that packet is passed again is constant.
Optionally, L=2, M=6, P=8.
Implement embodiments of the invention, in down direction, base station accesses the channel status of channel according to auxiliary,
The ACK or NACK fed back according to downlink data packet to UE are modified, and make to pass packet again
NDI and redundant version number keep constant.Can realize being based on mixed automatic retransfer, it is ensured that LTE system is in auxiliary
Accessing can quickly issue data, maximize using channel resource and increase throughput gain when channel can use.
It is a kind of mixed automatic retransfer treatment based on unlicensed spectrum provided in an embodiment of the present invention referring to Fig. 3
The specific example figure of method, the present embodiments relate to the processing procedure of the mixed automatic retransfer of down direction,
The processing procedure of the mixed automatic retransfer of up direction can refer to the present embodiment.
Wherein with L=2, M=6, as a example by P=8, BBU is indicated in subframe N generation scheduling, and scheduling indicates to use
In indicating RRU to send downlink data packet to UE in subframe N+2, to UE during RRU arrival subframe N+2
Downlink data packet is sent, RRU receives the first feedback message of UE returns in subframe N+6, and to BBU
The first feedback message is sent, BBU receives the first feedback message in subframe N+8, obtain non-in subframe N+2 awarding
The channel status of frequency spectrum is weighed, if the channel status that auxiliary accesses channel is down state, by the first feedback
Message is converted to the second feedback message, and generation passes packet, then the NDI and redundant version number for passing packet again
Keep constant, BBU sends to RRU in subframe N+8 and passes packet again, RRU is received in subframe N+10
Packet is passed again, and will again pass packet be transmitted to UE.Wherein, RRU detects auxiliary in subframe N+2
The channel status of channel is accessed, the subframe after subframe N+2 reports the channel status, usual RRU and BBU
Between there are the time delays of two subframes, man who brings news of appointment in the subframe that RRU can be between subframe N+2 and subframe N+6
The channel status of frame N+2, it is ensured that BBU to be received aided in subframe N+2 before subframe N+8 and accessed channel
Channel status.After RRU often detects a channel status for the auxiliary access channel of sub- frame in, current
Next subframe reporting channel state of subframe, for example：RRU can report the subframe that detects in subframe N+3
Auxiliary accesses the channel status of channel in N+2, then RRU can be just subject in subframe N+2 in subframe N+5
Auxiliary accesses the channel status of channel.
It is a kind of structural representation of base station provided in an embodiment of the present invention, in the embodiment of the present invention referring to Fig. 4
In, base station includes BBU401 and RRU402,
RRU402, for being indicated in subframe N+L to user equipment in the scheduling of subframe N according to the BBU
UE sends downlink data packet；N+M receive the UE according to the downlink data packet return it is first anti-
Feedback message, and forward first feedback message to BBU401；
BBU401, for receiving first feedback message in subframe N+P, and obtains the subframe
Auxiliary accesses the channel status of channel in N+L；If the channel status is down state, by described first
Feedback message is modified to the second feedback message；The downlink data packet is generated according to second feedback message
Packet is passed again；Wherein, the NDI that packet is passed again does not overturn constant with redundant version number；In subframe
N+P passes packet again by RRU402 to described in UE transmissions；Wherein, N, L, M and P are
Integer more than 0, and L ＜ M ＜ P.
Optionally, BBU401 is obtained and is aided in the channel status of access channel to specifically include in the subframe N+L：
Obtained according to default Channel Status Table and the channel status for accessing channel is aided in the subframe N+L.
Optionally, RRU402 is additionally operable to often detect the channel status for aiding in accessing channel described in a sub- frame in
When, the channel status of the auxiliary access channel in the subframe of current detection is notified to BBU501；
BBU401 is additionally operable to the channel status that the auxiliary accesses channel in the subframe by current detection and recorded
In Channel Status Table.
Optionally, the number of retransmissions that packet is passed again is constant.
Optionally, it is characterised in that L=2, M=6, P=10.
The embodiment of the embodiment of the present invention and Fig. 2 is based on same design, and the technique effect that it brings is also identical,
Concrete principle refer to the description of the embodiment of Fig. 2, and here is omitted.
It is a kind of another structural representation of base station provided in an embodiment of the present invention referring to Fig. 5, of the invention real
Apply in example, base station 5 includes processor 501, memory 502 and transceiver 503.Transceiver 503 be used for
Transceiving data between external equipment.The quantity of the processor 501 in base station 5 can be one or more.This
In some embodiments of invention, processor 501, memory 502 and transceiver 503 can by bus system or
Other modes are connected.Base station 5 can be used for performing the method shown in Fig. 2.On the art that the present embodiment is related to
The implication of language and citing, may be referred to the corresponding embodiments of Fig. 2.Here is omitted.
Wherein, store program codes in memory 502.Processor 501 is used to call and deposit in memory 502
The program code of storage, for performing following operation：
Indicated in subframe N+L to user equipment (UE) in the scheduling of subframe N according to baseband processing unit BBU
Send downlink data packet；
The first feedback message that the UE is returned according to the downlink data packet is received in N+M, and to described
BBU forwards first feedback message；
First feedback message is received in subframe N+P, and obtains auxiliary in the subframe N+L and access letter
The channel status in road；
If the channel status is down state, first feedback message is modified to the second feedback message；
Packet is passed according to second feedback message generation downlink data packet again；Wherein, it is described again
The NDI of biography packet does not overturn constant with redundant version number；
Packet is passed by the RRU again to described in UE transmissions in subframe N+P；Wherein, N, L,
M and P are the integer more than 0, and L ＜ M ＜ P.
In some embodiments of the invention, processor 501 performs described acquisition in the subframe N+L and aids in
The channel status for accessing channel includes：
Obtained according to default Channel Status Table and the channel status for accessing channel is aided in the subframe N+L.
In some embodiments of the invention, processor 501 is performed and described obtained according to default Channel Status Table
Take before the channel status for accessing channel is aided in the subframe N+L, also include：
When often detecting the channel status for aiding in access channel described in a sub- frame in, notify to work as to the BBU
The auxiliary accesses the channel status of channel in the subframe of preceding detection；
During the channel status that the auxiliary in the subframe of current detection accesses channel recorded into Channel Status Table.
In some embodiments of the invention, the number of retransmissions that packet is passed again is constant.
In some embodiments of the invention, L=2, M=6, P=8.
One of ordinary skill in the art will appreciate that all or part of flow in realizing above-described embodiment method,
Computer program be can be by instruct the hardware of correlation to complete, described program can be stored in a calculating
In machine read/write memory medium, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.
Wherein, described storage medium can for magnetic disc, CD, read-only memory (Read-Only Memory,
) or random access memory (Random Access Memory, RAM) etc. ROM.
Above disclosed is only a kind of preferred embodiment of the invention, can not limit this hair with this certainly
Bright interest field, one of ordinary skill in the art will appreciate that realizing all or part of stream of above-described embodiment
Journey, and the equivalent variations made according to the claims in the present invention, still fall within the covered scope of invention.
Claims (10)
1. a kind of mixing automatic retransmission processing method based on LAA, it is characterised in that including：
Radio frequency remote unit RRU is indicated in subframe according to baseband processing unit BBU in the scheduling of subframe N
N+L sends downlink data packet to user equipment (UE)；
The RRU receives the first feedback message that the UE is returned according to the downlink data packet in N+M,
And forward first feedback message to the BBU；
The BBU receives first feedback message in subframe N+P, and obtains in the subframe N+L
Auxiliary accesses the channel status of channel；
If the channel status is down state, first feedback message is modified to second by the BBU
Feedback message；
The BBU passes packet again according to second feedback message generation downlink data packet；Wherein,
It is constant with redundant version number RV that the new data for passing packet again indicates NDI not overturn；
The BBU passes packet again by the RRU in subframe N+P to described in UE transmissions；Its
In, N, L, M and P are the integer more than 0, and L ＜ M ＜ P.
2. the method for claim 1, it is characterised in that auxiliary in the acquisition subframe N+L
The channel status for accessing channel includes：
Obtained according to default Channel Status Table and the channel status for accessing channel is aided in the subframe N+L.
3. method as claimed in claim 2, it is characterised in that described to be obtained according to default Channel Status Table
Take before the channel status for accessing channel is aided in the subframe N+L, also include：
The RRU is often detected when aiding in accessing the channel status of channel described in a sub- frame in, to described
BBU notifies the channel status of the auxiliary access channel in the subframe of current detection；
The channel status that the auxiliary in the subframe of current detection accesses channel recorded channel shape by the BBU
In state table.
4. the method for claim 1, it is characterised in that the number of retransmissions for passing packet again is not
Become.
5. the method for claim 1, it is characterised in that L=2, M=6, P=8.
6. a kind of base station, it is characterised in that including：RRU and BBU；
The RRU, for indicating to be set to user in subframe N+L in the scheduling of subframe N according to the BBU
Standby UE sends downlink data packet；The UE is returned according to the downlink data packet first is received in N+M
Feedback message, and forward first feedback message to the BBU；
The BBU, for receiving first feedback message in subframe N+P, and obtains the subframe
Auxiliary accesses the channel status of channel in N+L；If the channel status is down state, by described first
Feedback message is modified to the second feedback message；The downlink data packet is generated according to second feedback message
Packet is passed again；Wherein, the new data that packet is passed again indicates NDI not overturn and redundant version number RV
It is constant；Packet is passed by the RRU again to described in UE transmissions in subframe N+P；Wherein, N,
L, M and P are the integer more than 0, and L ＜ M ＜ P.
7. base station as claimed in claim 6, it is characterised in that the BBU obtains the subframe N+L
The channel status that interior auxiliary accesses channel is specifically included：
Obtained according to default Channel Status Table and the channel status for accessing channel is aided in the subframe N+L.
8. base station as claimed in claim 7, it is characterised in that
The RRU is additionally operable to often detect when aiding in accessing the channel status of channel described in a sub- frame in, to
The BBU notifies the channel status of the auxiliary access channel in the subframe of current detection；
The BBU is additionally operable to the channel status that the auxiliary accesses channel in the subframe by current detection and recorded
In Channel Status Table.
9. base station as claimed in claim 6, it is characterised in that the number of retransmissions for passing packet again is not
Become.
10. base station as claimed in claim 6, it is characterised in that L=2, M=6, P=10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510815700.0A CN106788913A (en) | 2015-11-23 | 2015-11-23 | A kind of mixing automatic retransmission processing method and base station based on LAA |
| PCT/CN2016/106271 WO2017088696A1 (en) | 2015-11-23 | 2016-11-17 | Method of performing hybrid automatic repeat request based on laa and base station utilizing same |
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| CN201510815700.0A CN106788913A (en) | 2015-11-23 | 2015-11-23 | A kind of mixing automatic retransmission processing method and base station based on LAA |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108075874A (en) * | 2017-12-22 | 2018-05-25 | 上海华为技术有限公司 | A kind of resource regulating method and base station |
| WO2019014988A1 (en) * | 2017-07-17 | 2019-01-24 | 华为技术有限公司 | Data transmission method, network device and terminal device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109672496B (en) * | 2017-10-16 | 2021-08-20 | 上海华为技术有限公司 | Data processing method and device |
| CN107948948B (en) * | 2017-11-07 | 2020-12-22 | 北京全路通信信号研究设计院集团有限公司 | LTE-R distributed network system |
| EP3711419A4 (en) | 2017-11-17 | 2021-06-02 | ZTE Corporation | System and method for processing control information |
| WO2019178854A1 (en) | 2018-03-23 | 2019-09-26 | Oppo广东移动通信有限公司 | Method and apparatus for retransmission processing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101155013A (en) * | 2006-09-30 | 2008-04-02 | 上海无线通信研究中心 | HARQ and ARQ interactive cooperation method |
| CN101588636A (en) * | 2008-05-22 | 2009-11-25 | 大唐移动通信设备有限公司 | Method and device for scheduling downlink data |
| EP2224634A2 (en) * | 2009-02-27 | 2010-09-01 | Research In Motion Limited | State dependent advanced receiver processing in a wireless mobile device |
| WO2012106843A1 (en) * | 2011-02-11 | 2012-08-16 | Renesas Mobile Corporation | Signaling method to enable controlled tx deferring in mixed licensed and unlicensed spectrum carrier aggregation in future lte-a networks |
| WO2015044778A2 (en) * | 2013-09-27 | 2015-04-02 | 阿尔卡特朗讯 | Harq timing and pucch resource allocation method for tdd-fdd joint operation |
| WO2015131730A1 (en) * | 2014-08-22 | 2015-09-11 | 中兴通讯股份有限公司 | Data processing implementation method, base station and user equipment |
-
2015
- 2015-11-23 CN CN201510815700.0A patent/CN106788913A/en not_active Withdrawn
-
2016
- 2016-11-17 WO PCT/CN2016/106271 patent/WO2017088696A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101155013A (en) * | 2006-09-30 | 2008-04-02 | 上海无线通信研究中心 | HARQ and ARQ interactive cooperation method |
| CN101588636A (en) * | 2008-05-22 | 2009-11-25 | 大唐移动通信设备有限公司 | Method and device for scheduling downlink data |
| EP2224634A2 (en) * | 2009-02-27 | 2010-09-01 | Research In Motion Limited | State dependent advanced receiver processing in a wireless mobile device |
| WO2012106843A1 (en) * | 2011-02-11 | 2012-08-16 | Renesas Mobile Corporation | Signaling method to enable controlled tx deferring in mixed licensed and unlicensed spectrum carrier aggregation in future lte-a networks |
| WO2015044778A2 (en) * | 2013-09-27 | 2015-04-02 | 阿尔卡特朗讯 | Harq timing and pucch resource allocation method for tdd-fdd joint operation |
| WO2015131730A1 (en) * | 2014-08-22 | 2015-09-11 | 中兴通讯股份有限公司 | Data processing implementation method, base station and user equipment |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019014988A1 (en) * | 2017-07-17 | 2019-01-24 | 华为技术有限公司 | Data transmission method, network device and terminal device |
| CN108075874A (en) * | 2017-12-22 | 2018-05-25 | 上海华为技术有限公司 | A kind of resource regulating method and base station |
| WO2019120130A1 (en) * | 2017-12-22 | 2019-06-27 | 华为技术有限公司 | Resource scheduling method and base station |
| CN108075874B (en) * | 2017-12-22 | 2020-04-28 | 上海华为技术有限公司 | Resource scheduling method and base station |
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