CN109152074A - Data transmission method and device - Google Patents
Data transmission method and device Download PDFInfo
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- CN109152074A CN109152074A CN201710459674.1A CN201710459674A CN109152074A CN 109152074 A CN109152074 A CN 109152074A CN 201710459674 A CN201710459674 A CN 201710459674A CN 109152074 A CN109152074 A CN 109152074A
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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
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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
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- H04W72/12—Wireless traffic scheduling
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Abstract
The present invention provides a kind of data transmission method and devices, wherein this method comprises: configuring identical group of mark for M terminal；Group scheduling, which is sent, according to described group of mark indicates that information, the group scheduling instruction information include that the scheduling of N number of terminal indicates information；Wherein, N >=1, M >=max (2, N).Through the invention, the too low technical problem of scheduling scheme efficiency of transmission in the related technology is solved.
Description
Technical field
The present invention relates to the communications fields, in particular to a kind of data transmission method and device.
Background technique
It faces the future, the business of mobile Internet and Internet of Things will become the main drive of Mobile Communication Development.5G will
Meet people in the diversified business demand in the various regions such as clothing, food, lodging and transportion -- basic necessities of life, and 5G will penetrate into Internet of Things and various industries neck
Domain is merged with industrial plants, Medical Instruments, vehicles even depth, effectively meets the vertical industries such as industry, medical treatment, traffic
Diversified business demand is realized really " all things on earth interconnection ".
" low time delay is highly reliable " is the important technology scene of 5G.It is vertical that the scene is mainly directed towards car networking, Industry Control etc.
The special applications demand of industry, this kind of application have high index request to time delay and reliability, need to further decrease use
Family face time delay and control plane time delay, opposite 4G shorten 5-10 times, provide the end-to-end time delay of Millisecond for user and close to 100%
Service reliability guarantee.The highly reliable technology of low time delay is the basis that following 5G network high-speed operates normally, be realize " all things on earth with
The heart extremely, information tentacle and " important technical of 5G vision.The highly reliable technology of 5G low time delay has broad application prospects, and relates to
And the application field arrived includes the every aspects such as medical treatment, traffic, industry, military affairs, amusement, work, have to our life and
Its important influence.The realization of this technology means huge business opportunity, while more will further improve people's quality of life, pushing away
Into progress of human society.
High communication reliability (Ultra High Reliable Communication, UHRC) is the following novel nothing
The important need of line communication service.The assessment result of tissue METIS is studied according to European 5G, 5G needs to meet eating dishes without rice or wine for 0.5ms
Time delay, and meet 99.999% transmission reliability.And existing LTE technology is also far from satisfying such requirement, therefore
It is necessary to specially be furtherd investigate to technique, the technical solution that reliability requirement is extended to when meeting 5G is finally determined.
To meet the demand of extremely low propagation delay time (time delay of eating dishes without rice or wine of such as 0.5ms), for scheduling scheme, can from exempt from scheduling,
It reduces the Signalling exchange between UE and base station, reduce hybrid automatic repeat-request (Hybrid Automatic Repeat
Request, referred to as HARQ) number of retransmissions etc. is set about, but these methods can undoubtedly subtract the reliability of small data transmission.For
The reliability of improve data transfer can pass through for scheduling scheme and increase the confirmation information exchange of UE and base station, increase
Number of retransmissions etc. is set about, and this will increase the propagation delay time between UE and base station.
In conclusion there are contradictions for low time delay and highly reliable two o'clock itself.Therefore it is situated between in data run processing speed, transmission
In the case that matter is constant, to realize extremely low data transmission delay and high transmission reliability is that a huge technology is chosen
War.Mainly with good grounds type of service is grouped or is grouped according to transmission rate packet scheduling technology in the related technology, can drop
The co-channel interference of low minizone can not be scheduled all users in cell.Group technology tune is used in the related technology
Degree or carry out pre-scheduling, method cannot generally be applicable in and cell in all users, all do not effectively reduce control signaling
Interaction, is not able to satisfy requirement of the 5G to low time delay.
5G system needs support 1UE/m3(industrial plant automated communication scene), an operating unit are 10m*10m*3m
Space, controller needs interacted in operating unit with 300 sensors or actuator.And it is medical for mobile electron,
Smart grid energy business, number of users are bigger.A large amount of objects are occupied when accessing simultaneously for the so many highly reliable user of low time delay
Down control channel (Physical Downlink Control Channel, referred to as PDCCH) resource is managed, will lead to PDCCH
Resource is not enough.Except this, raising due to the highly reliable business of low time delay to data information reliability requirement, control information can
By property also with raising, and then need more PDCCH resources to carry control information, be further aggravated PDCCH resource by
Limit situation.
For the above problem present in the relevant technologies, at present it is not yet found that the solution of effect.
Summary of the invention
The embodiment of the invention provides a kind of data transmission method and devices, at least to solve dispatching party in the related technology
The too low technical problem of case efficiency of transmission.
According to one embodiment of present invention, a kind of data transmission method is provided, comprising: identical for M terminal configuration
Group mark；Group scheduling is sent according to described group of mark and indicates information, and the group scheduling instruction information includes N number of terminal
Scheduling instruction information；Wherein, N >=1, M >=max (2, N).
Optionally, the scheduling instruction information includes that the partial scheduling transmitted for data indicates information, and does not include complete
Ministry dispatching information, that is, receiving end needs to carry out necessary blind Detecting could complete data receiver.
Optionally, the scheduling instruction information includes at least following one: modulation coding scheme is organized in group frequency domain resource position
(Modulation and Coding Scheme, referred to as MCS), to the instruction information of the M terminal.
Optionally, the instruction information to the M terminal includes M-bit.
Optionally, the terminal iidentification to the instruction information and terminal of the M terminal in group has bit map
Relationship, wherein if the bit mapping relation includes: the m that terminal sends instruction informationiBit is 1, then with miCorresponding end
There is terminal data information transmission at end in current transmission time unit；If terminal sends the m of instruction informationiBit is 0, then with
miCorresponding terminal endless data information transfer in current transmission time unit.
Optionally, described group of frequency domain resource position includes at least one of: N number of terminal for having data information transfer
All frequency domain resource positions occupied；The specified frequency domain position of N number of terminal for having data information transfer.
Optionally, when group frequency domain resource position is all frequency domains money that N number of terminal for having data information transfer occupies
When source position, occupied frequency domain position includes multiple resource units, and the resource unit is to include one or more resource blocks
(Resource Block, referred to as RB).
Optionally, when group frequency domain resource position is the specified frequency domain position of N number of terminal for having data information transfer,
Spectrum efficiency of the N number of terminal for having data information transfer on the specified frequency domain position is greater than the end of the first preset threshold
End is greater than the second preset threshold with the ratio for organizing interior all terminals.
Optionally, described group of modulation coding scheme is the high frequency modulated coding mode of terminal in group, wherein in current transmission
Time quantum, the interior number of terminals using the high frequency modulated coding mode of group are more than or equal to interior use of group and remove the high frequency modulation
The number of terminals of other any modulation coding schemes except coding mode processed.
Optionally, configuring identical group of mark for M terminal includes: that M terminal is divided into one group by pre-defined rule；It is every
A group distribution one group mark for unique identification in cell, and for terminal distribution one in each group for unique in group
Terminal iidentification in the group of mark.
Optionally, the pre-defined rule includes following one: the same or similar degree of modulation coding scheme is greater than threshold value
Terminal be divided into one group；The terminal for having spectral efficient in adjacent frequency domain position is divided into one group；There to be identical services type
Terminal be divided into one group；Terminal with identical load size is divided into one group.
Optionally, after configuring identical group of mark for M terminal, the method also includes following one: will be described
Group mark is sent to terminal by wireless heterogeneous networks (Radio Resource Control, referred to as RRC) signaling；It will be described
Group mark is sent to terminal by the interactive process of random access signaling.
Optionally, the sending method of terminal iidentification includes following one in described group: terminal iidentification is by wirelessly providing in organizing
Source control signaling is sent to terminal by the network side；Terminal iidentification is in random access signaling interactive process by the net in group
Network side is sent to terminal.
Optionally, the at most corresponding group scheduling of each terminal indicates information；The group scheduling instruction information is using group mark
Know scrambling；The group scheduling instruction information is transmitted on a control channel.
Optionally, after sending group scheduling instruction information according to described group of mark, the method also includes: using group mark
Terminal iidentification scrambles the terminal data in knowing and organizing；The terminal data is issued into single terminal.
Optionally, after sending group scheduling instruction information according to described group of mark, the method also includes: described in reception
The feedback information that terminal is sent, wherein the feedback information is that the terminal is being attempted to generate after decoding the terminal data
's.
Optionally, the method also includes: using terminal-specific control channel instruction decoding failure terminal carry out weight
It passes.
Optionally, using terminal-specific control channel instruction decoding failure terminal carry out retransmit include it is following at least it
One: individually transmitting scheduling information to the terminal of feedback information, wherein the scheduling information is held using the control channel of terminal-specific
It carries；Occupancy and just biography same frequency resource location simultaneously use and just pass the identical modulation coding scheme re-transmission terminal data.
Optionally, the terminal data of N number of terminal is just to pass data.
According to one embodiment of present invention, another data transmission method is provided, comprising: receive network side according to group
The group scheduling that mark is sent indicates information, wherein the group scheduling instruction information includes that the scheduling of N number of terminal indicates information；Root
The data of the network side transmission are received according to the scheduling instruction information；Wherein, the group scheduling instruction information is for controlling M
The terminal data of the terminal is transmitted, N >=1, M >=max (2, N).
Optionally, the group scheduling instruction information includes at least following one: modulating-coding side is organized in group frequency domain resource position
Formula, to the instruction information of the M terminal.
Optionally, include: according to the data that the scheduling instruction information receives the network side transmission
Indicate information in described group of frequency domain resource position and described group of modulation coding scheme by decoding according to the scheduling
Rule is attempted to decode the data information of the terminal.
Optionally, indicate information in described group of frequency domain resource position and described group of modulation coding scheme according to the scheduling
Include by the data information that decoding rule attempts to decode the terminal: group frequency domain position one frequency offset of increase being measured inclined
Frequency domain position is moved, and group modulation coding scheme is increased into a modulation coding scheme offset and obtains offset modulation coding staff
Formula；Using offset modulation coding mode by the regular data information for attempting to decode the terminal of decoding on offset frequency domain position.
Optionally, the frequency offset amount includes a resource unit, and/or, the modulation coding scheme offset packet
Include modulation coding scheme order.
Optionally, the decoding rule includes at least one of: the data information of the terminal is successfully decoded, then stops
Decoding is attempted, determines successfully decoded；Attempt the data letter that decoding number reaches default maximum times and the incorrectly decoded terminal
Breath, then cease attempt to decode, and determines decoding failure；The offset of all candidates and the incorrectly decoded terminal are traversed
Data information then ceases attempt to decode, and determines decoding failure.
Optionally, the decoding rule further includes at least one of: when determining successfully decoded, the terminal feedback is true
Recognize information；When determining decoding failure, the terminal feeds back unacknowledged information.
According to another embodiment of the invention, a kind of data transmission device is provided, is applied in network side, comprising: match
Module is set, for configuring identical group of mark for M terminal；Sending module refers to for sending group scheduling according to described group of mark
Show that information, the group scheduling instruction information include that the scheduling of N number of terminal indicates information；
Wherein, N >=1, M >=max (2, N).
Optionally, the scheduling instruction information includes at least following one: modulating-coding side is organized in group frequency domain resource position
Formula, to the instruction information of the M terminal.
According to another embodiment of the invention, another data transmission device is provided, is applied in terminal side, comprising:
Receiving module indicates information according to the group scheduling that group mark is sent for receiving network side, wherein the group scheduling indicates information
Scheduling comprising N number of terminal indicates information；Transmission module, for indicating that information receives the network side and transmits according to the scheduling
Data；Wherein, the terminal data that the group scheduling instruction information is used to control the M terminals is transmitted, and N >=1, M >=
max(2,N)。
Optionally, the scheduling instruction information includes at least following one: modulating-coding side is organized in group frequency domain resource position
Formula, to the instruction information of the M terminal.
According to still another embodiment of the invention, a kind of storage medium is additionally provided.The storage medium is set as storage and uses
In the program code for executing following steps:
Identical group of mark is configured for M terminal；
Group scheduling is sent according to described group of mark and indicates information, and the group scheduling instruction information includes N number of terminal
Scheduling instruction information；Wherein, N >=1, M >=max (2, N).
Through the invention, identical group of mark is configured for M terminal；Group scheduling instruction letter is sent according to described group of mark
Breath, the group scheduling instruction information include that the scheduling of N number of terminal indicates information；Wherein, N >=1, M >=max (2, N).Using
Scheduling scheme based on set of terminal greatly reduces control channel resource overhead, improves the reliability of control information, ensure that number
According to the reliability of transmission, and reduce propagation delay time, is pushed further into the realization of the highly reliable technical indicator of low time delay.Solves phase
The too low technical problem of scheduling scheme efficiency of transmission in the technology of pass.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of flow chart of data transmission method according to an embodiment of the present invention；
Fig. 2 is the flow chart of another data transmission method according to an embodiment of the present invention；
Fig. 3 is a kind of structural block diagram of data transmission device according to an embodiment of the present invention；
Fig. 4 is the structural block diagram of another data transmission device according to an embodiment of the present invention；
Fig. 5 is the flow diagram of the embodiment of the present invention；
Fig. 6 is the group control information schematic diagram of the embodiment of the present invention；
Fig. 7 is the retransmission resource schematic diagram that the embodiment of the present invention is proposed；
Fig. 8 is that the terminal that the embodiment of the present invention proposes sends instruction information schematic diagram.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.
Embodiment 1
A kind of data transmission method is provided in the present embodiment, and Fig. 1 is that a kind of data according to an embodiment of the present invention pass
The flow chart of transmission method, as shown in Figure 1, the process includes the following steps:
Step S102 is that M terminal configures identical group of mark；
Step S104 sends group scheduling according to a group mark and indicates information, and group scheduling indicates that information includes the scheduling of N number of terminal
Indicate information；Wherein, N >=1, M >=max (2, N).
Through the above steps, identical group of mark is configured for M terminal；Group scheduling, which is sent, according to a group mark indicates information,
Group scheduling indicates that information includes that the scheduling of N number of terminal indicates information；Wherein, N >=1, M >=max (2, N).Using based on set of terminal
Scheduling scheme, greatly reduce control channel resource overhead, improve the reliability of control information, ensure that data transmission can
By property, and reduce propagation delay time, is pushed further into the realization of the highly reliable technical indicator of low time delay.It solves in the related technology
The too low technical problem of scheduling scheme efficiency of transmission.
Optionally, the executing subject of above-mentioned steps is network side, can be base station etc., but not limited to this.
Optionally, group scheduling instruction information includes at least following one: modulation coding scheme is organized in group frequency domain resource position
MCS, to the instruction information of M terminal.
It in the present embodiment, include M-bit to the instruction information of M terminal；Instruction information to M terminal includes M ratio
Special and terminal in the group in group terminal iidentification there is bit mapping relation.In the optional embodiment of the present embodiment, bit
Mapping relations specifically: if terminal sends the m of instruction informationiBit is 1, then with miCorresponding terminal is in current transmission time
There is terminal data information transmission in unit；If terminal sends the m of instruction informationiBit is 0, then with miCorresponding terminal is being worked as
Endless data information transfer in preceding transmission time quantum.
Optionally, group frequency domain resource position includes at least one of:
All frequency domain resource positions that N number of terminal for having data information transfer occupies；
The specified frequency domain position of N number of terminal for having data information transfer, specified frequency domain position can be optimal frequency domain position.
Optionally, when group frequency domain resource position is all frequency domain resource positions that N number of terminal for having data information transfer occupies
When setting, occupied frequency domain position includes multiple resource units, and resource unit is to include one or more RB.
Optionally, N number of when group frequency domain resource position is the specified frequency domain position of N number of terminal for having data information transfer
There is the terminal of data information transfer institute within the spectrum efficiency on specified frequency domain position is greater than the terminal of the first preset threshold and organizes
There is the ratio of terminal to be greater than the second preset threshold.
In the present embodiment, group MCS is the high frequency MCS of terminal in group, wherein is adopted in current transmission time unit, group
It is more than or equal in group with the number of terminals of high frequency MCS using the number of terminals of other any MCS in addition to high frequency MCS.
Optionally, configuring identical group of mark for M terminal includes:
M terminal is divided into one group by pre-defined rule by S11；
S12 identifies for each group distribution one group for unique identification in cell, and is terminal distribution in each group
Terminal iidentification in one group for unique identification in group.
Specifically, pre-defined rule can be, but not limited to are as follows:
The terminal that the same or similar degree of MCS is greater than threshold value is divided into one group；
The terminal for having spectral efficient in adjacent frequency domain position is divided into one group；
Terminal with identical services type is divided into one group；
Terminal with identical load size is divided into one group.
Optionally, after configuring identical group of mark for M terminal, method further includes following one: network side is by group
Mark is sent to terminal by radio resource control RRC signaling；A group mark is passed through interacting for random access signaling by network side
Journey is sent to terminal.
Optionally, the sending method of terminal iidentification includes following one in organizing: terminal iidentification is by RRC signaling by net in organizing
Network side is sent to terminal；Terminal iidentification is sent to terminal by network side in random access signaling interactive process in group.
In the present embodiment, the at most corresponding group scheduling of each terminal indicates information；Group scheduling indicates that information uses group
Mark scrambling；Group scheduling instruction information is transmitted on a control channel.
Optionally, after sending group scheduling instruction information according to a group mark, the method for the present embodiment further include:
S21 using group mark and organizes interior terminal iidentification scrambling terminal data；
Terminal data is issued single terminal by S22.
Optionally, after sending group scheduling instruction information according to a group mark, the method for the present embodiment further include: network side
Receive the feedback information that terminal is sent, wherein feedback information is that terminal generates after attempting decoding terminal data.
Optionally, it is retransmitted using the terminal of the control channel instruction decoding failure of terminal-specific.
Optionally, using terminal-specific control channel instruction decoding failure terminal carry out retransmit include it is following at least it
One: individually transmitting scheduling information to the terminal of feedback information, wherein scheduling information is carried using the control channel of terminal-specific；
Network side occupancy and just biography same frequency resource location simultaneously use and just pass identical MCS re-transmission terminal data.
In the present embodiment, the terminal data for the N number of terminal transmitted for the first time is just to pass data.
Another data transmission method is provided in the present embodiment, and Fig. 2 is another number according to an embodiment of the present invention
According to the flow chart of transmission method, as shown in Fig. 2, the process includes the following steps:
Step S202 receives network side according to the group scheduling that group mark is sent and indicates information, wherein group scheduling indicates information
Scheduling comprising N number of terminal indicates information；
Step S204 receives the data of network side transmission according to scheduling instruction information；Wherein, group scheduling instruction information is used for
The terminal data of M terminal of control is transmitted, N >=1, M >=max (2, N).
Optionally, the executing subject of above-mentioned steps is terminal, can be mobile phone etc., but not limited to this.
Optionally, group scheduling instruction information includes at least following one: modulation coding scheme is organized in group frequency domain resource position,
To the instruction information of M terminal.
It optionally, include: according to scheduling instruction information in group according to the data that scheduling instruction information receives network side transmission
The data information of decoding terminal is attempted in frequency domain resource position and group modulation coding scheme by decoding rule.
Optionally, it is tasted in group frequency domain resource position and group modulation coding scheme by decoding rule according to scheduling instruction information
The data information of examination decoding terminal includes:
Group frequency domain position is increased a frequency offset and measures offset frequency domain position, and will organize modulating-coding side by S31
Formula increases a modulation coding scheme offset and obtains offset modulation coding mode；
S32 is attempted the data of decoding terminal on offset frequency domain position using offset modulation coding mode by decoding rule
Information.
In the present embodiment, frequency offset amount includes a resource unit, and MCS offset includes MCS order.
Specifically, the decoding rule of the present embodiment includes at least one of:
The data information of terminal is successfully decoded, then ceases attempt to decode, determines successfully decoded；
The data information that decoding number reaches default maximum times and incorrectly decoded terminal is attempted, then ceases attempt to decode,
Determine decoding failure；
The offset of all candidates and the data information of incorrectly decoded terminal have been traversed, then has ceased attempt to decode, really
Definite decoding failure.
Optionally, decoding rule further includes at least one of: when determining successfully decoded, terminal feedback acknowledgment ACK letter
Breath；When determining decoding failure, terminal feeds back non-acknowledgement nack message.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation
The method of example can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but it is very much
In the case of the former be more preferably embodiment.Based on this understanding, technical solution of the present invention is substantially in other words to existing
The part that technology contributes can be embodied in the form of software products, which is stored in a storage
In medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, calculate
Machine, server or network equipment etc.) execute method described in each embodiment of the present invention.
Embodiment 2
A kind of data transmission device is additionally provided in the present embodiment, and the device is real for realizing above-described embodiment and preferably
Mode is applied, the descriptions that have already been made will not be repeated.As used below, the soft of predetermined function may be implemented in term " module "
The combination of part and/or hardware.Although device described in following embodiment is preferably realized with software, hardware, or
The realization of the combination of software and hardware is also that may and be contemplated.
Fig. 3 is a kind of structural block diagram of data transmission device according to an embodiment of the present invention, is applied in network side, such as Fig. 3
Shown, which includes:
Configuration module 30, for configuring identical group of mark for M terminal；
Sending module 32 indicates information for sending group scheduling according to a group mark, and group scheduling indicates that information includes N number of terminal
Scheduling indicate information；
Wherein, N >=1, M >=max (2, N).
Fig. 4 is the structural block diagram of another data transmission device according to an embodiment of the present invention, applies in terminal side, such as schemes
Shown in 4, which includes:
Receiving module 40 indicates information according to the group scheduling that group mark is sent for receiving network side, wherein group scheduling refers to
Show that information includes the scheduling instruction information of N number of terminal；
Transmission module 42, for receiving the data of network side transmission according to scheduling instruction information；
Wherein, the terminal data that group scheduling instruction information is used to control M terminal is transmitted, N >=1, M >=max (2,
N)。
Optionally, scheduling instruction information includes at least following one: modulation coding scheme is organized, to M in group frequency domain resource position
The instruction information of a terminal.
It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong
Following manner realization is crossed, but not limited to this: above-mentioned module is respectively positioned in same processor；Alternatively, above-mentioned modules are with any
Combined form is located in different processors.
Embodiment 3
It present embodiments provides a kind of based on group control information (the group scheduling instruction information being equivalent in above-described embodiment)
Scheduling method for wireless resource, can be adapted for that low time delay is highly reliable or the technology scene of flood tide link.
The present embodiment considers resource efficiency to further shorten time delay, improve transmission reliability, to related skill
Dispatching technique in art improves, and using based on a group descending scheduling scheme for control information, greatly reduces control channel money
Source expense improves the reliability of control information, ensure that the reliability of data transmission, and reduces propagation delay time, further pushes away
Into the realization of the highly reliable technical indicator of low time delay.
The present embodiment includes two examples, specific as follows:
Example 1
Fig. 5 is the flow diagram of the embodiment of the present invention, comprising:
Step A, base station is by end packet.As base station will have same or similar modulation coding scheme (Modulation
And Coding Scheme, referred to as MCS) terminal be divided into one group；
Step B, base station issue end packet information to terminal.The group mark organized as where terminal is known by grouping information
Terminal iidentification in the group of knowledge and the terminal；Group identification notification method: can be by RRC signaling that group identification notification is interior eventually to group
End can also pass through interactive process when terminal accesses cell group identification notification to terminal；Terminal identifier notification method in group:
Terminal in group can be given terminal identifier notification in group by (Radio Resource Control, referred to as RRC) signaling,
Terminal identifier notification is to terminal in being organized in terminal access cell by interactive process handle；
Step C, base station issue a group control information to terminal.Described group of control information is dynamically that base station is in each transmission
Time quantum is handed down to terminal, and one transmission time unit can be a Transmission Time Interval (Transmission
Time, referred to as TTI), slot be also possible to mini-slot, in one transmission time unit, primary hair is completed in base station
It penetrates；
Described group of control information is in Physical Downlink Control Channel (Physical Downlink Control Channel, letter
Referred to as PDCCH) on send and with group mark scramble；The terminal comprising M-bit sends instruction information in group control information, and instruction is worked as
The terminal that preceding transmission time quantum has data to transmit, terminal send in instruction information and set of terminal and are identified as bit mapping relation,
Terminal sends the m of instruction informationiBit value be 1 indicate current transmission time unit have group in a terminal iidentification be miEnd
The terminal data at end, it is on the contrary then do not have；
Base station is scheduling granularity with a resource block group (Resource Block Group, referred to as RBG), for terminal point
With (Physical Downlink Shared Channel, referred to as PDSCH) resource；All terminals with identical group of mark
Should having the same group of control information, such as resource location, MCS, the frequency domain resource that group control information provides is institute in being grouped
The frequency domain position of all occupancy of terminal in the position for having terminal frequency domain selectively best or group, the MCS that group control information provides
It is the most suitable MCS of all terminals or deviation very little in being grouped；One corresponding one or more number of terminals of group control information
It is believed that breath, a terminal data information can only be corresponding with a group control information；
Step D, base station issue terminal data information to terminal.Base station issues terminal data information, institute on PDSCH channel
It states terminal data information and refers to that the data of some terminal are issued in base station；Terminal iidentification scrambling in the terminal data information group；
Step E, terminal receive terminal data information.Specifically,
E.1 terminal judges whether current transmission time unit has the terminal data information of oneself to step；Terminal from group control
Terminal is obtained in information and sends instruction information, judges whether current transmission time unit has the terminal data information transmission of oneself；
If E.1a current transmission time unit has the terminal data information of the terminal to step, step is skipped to E.2；
If the terminal data information of the step E.1b not no terminal of current transmission time unit, terminates；
Step E.2 terminal demodulating and decoding terminal data information；
Offset blind Detecting terminal data is attempted in the optimal frequency domain resource position and group MCS that terminal is provided according to group control information
Information；The offset blind Detecting includes: the frequency domain position and MCS decoding terminal data letter that terminal is provided using group control information
Breath again attempts to decoding eventually after adjusting an offset to group optimal location of control information offer and (or) MCS if failure
End data information is until being successfully decoded terminal data information or having traversed all offsets or reached peak excursion blind Detecting number；
If step E.2a successfully decoded, terminal is to base station feedback ACK (Acknowledgement, confirmation)；
If E.2b step decodes failure, terminal feeds back NACK (Negative Acknowledgement, negative confirmation)
And skip to step F；
The base station step F retransmits terminal data information；
Downlink Control Information (the Downlink Control that the scheduling information of the re-transmission passes through terminal-specific
Information, referred to as DCI) instruction, it retransmits and uses and just pass identical frequency domain resource and MCS；
Step G terminal, which merges to receive, retransmits terminal data information；As terminal obtains corresponding frequency domain position according to dedicated DCI
On terminal data information and merge demodulation with first biography.
Example 2
Fig. 6 is the group control information schematic diagram of the embodiment of the present invention, and in Fig. 6, base station is by end packet.As base station will have
4 terminals of same or similar MCS are divided into one group, are denoted as UE1, UE2, UE3 and UE4；This having the same group of mark of 4 terminals
And share identical group of control information.
Group control information is transmitted on PDCCH and is scrambled with group mark, and a group control information has corresponded to 4 ends in group
End, the terminal data information for organizing interior each terminal transmit on PDSCH, and organizing the practical MCS used of interior each terminal can be different.
The terminal comprising 4 bits sends instruction information in group control information, and instruction current transmission time unit has data biography
Defeated terminal, terminal send and are identified as bit mapping relation in instruction information and set of terminal, and terminal sends i-th of instruction information
Bit value is 1 and indicates that current transmission time unit UEi has a terminal data information transmission, on the contrary then do not have.
Example 3
Fig. 7 is the retransmission resource schematic diagram that the embodiment of the present invention is proposed, in Fig. 7, network is by UE1, UE2, UE3 and UE4
It is divided into one group.As shown in (a) of Fig. 7, in the T0 transmission time unit, the first transmission terminal data information of this 4 terminals is by same
One group controls message scheduling, which controls information and occupy PDCCH resource, and the first transmission terminal data information of this 4 terminals exists
It is transmitted on PDSCH.
If the first transmission terminal data information of UE4 fails, the re-transmission terminal data information of UE4 is in the T0+T1 transmission
Between unit transmit, such as (b) of Fig. 7, the re-transmission of UE4 and is retransmitted and is adopted by the control message scheduling of the dedicated PDCCH carrying of UE4
With with just pass identical MCS, occupy identical frequency domain resource position.
The re-transmission terminal data information and the T0 transmission time unit that UE4 transmits the T0+T1 transmission time unit
The first transmission terminal data information of transmission, which merges, to be received.
Example 4
Fig. 8 is that the terminal that the embodiment of the present invention proposes sends instruction information schematic diagram.In Fig. 8, network will be in adjacent frequency domain
Position has 5 terminals of spectral efficient to be divided into one group or 5 terminals with same or similar MCS is divided into one group, and described 5
A terminal is denoted as UE1, UE2, UE3, UE4 and UE5.
5 terminals share same group of control information, and group control information contains the first transmission terminal of 5 terminals
The scheduling information of data information.Terminal in the control information comprising M-bit sends instruction information, M described in this embodiment
Value 5, terminal send terminal in the group of instruction information and 5 terminals and are expressed as bit mapping relation, the bit map
Relationship are as follows: the 1st bit in the terminal instruction information of 5 bits is 1, then UE1 has terminal data in current transmission time unit
Information transmission, if the 1st bit does not have terminal data information transmission in current transmission time unit for 0, UE1；Similarly establish
Terminal indicates the 2nd of information the, 3,4,5 bits mapping relations with UE2, UE3, UE4, UE5 respectively.
Such as (a) of Fig. 8, the terminal in the T1 transmission time unit, group control information sends instruction information and is
11110, that is, inform that 5 terminals in the group, 4 terminals in current transmission time unit group in 5 terminals have terminal data
Information transmission, i.e. N value 4, described 4 terminals for thering is terminal data information to transmit are as follows: UE1, UE2, UE3, UE4.
Such as (b) of Fig. 8, the terminal in the T2 transmission time unit, group control information sends instruction information and is
10101, that is, inform that 5 terminals in the group, 3 terminals in current transmission time unit group in 5 terminals have terminal data
Information transmission, i.e. N value 3, described 3 terminals for thering is terminal data information to transmit are as follows: UE1, UE3, UE5.
Embodiment 4
The embodiments of the present invention also provide a kind of storage mediums.Optionally, in the present embodiment, above-mentioned storage medium can
To be arranged to store the program code for executing following steps:
S1 is that M terminal configures identical group of mark；
S2 sends group scheduling according to a group mark and indicates information, and group scheduling indicates that information includes that the scheduling of N number of terminal indicates letter
Breath；Wherein, N >=1, M >=max (2, N).
Optionally, in the present embodiment, above-mentioned storage medium can include but is not limited to: USB flash disk, read-only memory (ROM,
Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or
The various media that can store program code such as CD.
Optionally, in the present embodiment, it is M terminal that processor is executed according to program code stored in storage medium
Configure identical group of mark；
Optionally, in the present embodiment, processor is executed according to program code stored in storage medium according to a group mark
Know and send group scheduling instruction information, group scheduling indicates that information includes that the scheduling of N number of terminal indicates information；Wherein, N >=1, M >=max
(2,N)。
Optionally, the specific example in the present embodiment can be with reference to described in above-described embodiment and optional embodiment
Example, details are not described herein for the present embodiment.
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein
Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (31)
1. a kind of data transmission method characterized by comprising
Identical group of mark is configured for M terminal；
Group scheduling, which is sent, according to described group of mark indicates that information, the group scheduling instruction information include the scheduling of N number of terminal
Indicate information；
Wherein, N >=1, M >=max (2, N).
2. the method according to claim 1, wherein scheduling instruction information includes at least following one: group
Modulation coding scheme is organized, to the instruction information of the M terminal in frequency domain resource position.
3. the method according to claim 1, wherein the instruction information to the M terminal includes M ratio
It is special.
4. according to the method described in claim 3, it is characterized in that, the instruction information and terminal to the M terminal exists
Terminal iidentification in group has bit mapping relation, wherein the bit mapping relation includes:
If terminal sends the m of instruction informationiBit is 1, then with miCorresponding terminal has terminal in current transmission time unit
Data information transfer；
If terminal sends the m of instruction informationiBit is 0, then with miCorresponding terminal endless in current transmission time unit
Data information transfer.
5. according to the method described in claim 2, it is characterized in that, described group of frequency domain resource position includes at least one of:
All frequency domain resource positions that N number of terminal for having data information transfer occupies；
The specified frequency domain position of N number of terminal for having data information transfer.
6. according to the method described in claim 5, it is characterized in that, when group frequency domain resource position is described N number of to have data information
When all frequency domain resource positions that the terminal of transmission occupies, occupied frequency domain position includes multiple resource units, the resource
Unit is to include one or more resource blocks.
7. according to the method described in claim 5, it is characterized in that, when group frequency domain resource position is described N number of to have data information
When the specified frequency domain position of the terminal of transmission, N number of terminal for having data information transfer is on the specified frequency domain position
Spectrum efficiency is greater than the terminal of the first preset threshold and organizes the ratio of interior all terminals greater than the second preset threshold.
8. according to the method described in claim 2, it is characterized in that, described group of modulation coding scheme is the high frequency modulation of terminal in group
Coding mode processed, wherein in current transmission time unit, organize in be greater than using the number of terminals of the high frequency modulated coding mode or
Person is equal in group using the number of terminals of other any modulation coding schemes in addition to the high frequency modulated coding mode.
9. the method according to claim 1, wherein including: for identical group of mark of M terminal configuration
M terminal is divided into one group by pre-defined rule；
For each group distribution one group mark for unique identification in cell, and it is used for for terminal distribution one in each group
Terminal iidentification in the group of unique identification in group.
10. according to the method described in claim 9, it is characterized in that, the pre-defined rule includes following one:
The terminal that the same or similar degree of modulation coding scheme is greater than threshold value is divided into one group；
The terminal for having spectral efficient in adjacent frequency domain position is divided into one group；
Terminal with identical services type is divided into one group；
Terminal with identical load size is divided into one group.
11. according to claim 1 or method described in 9, which is characterized in that after configuring identical group of mark for M terminal,
The method also includes following one:
Described group of mark is sent to terminal by radio resource control signaling；
Described group of mark is sent to terminal by the interactive process of random access signaling.
12. according to the method described in claim 9, it is characterized in that, the sending method of terminal iidentification includes following in described group
One of:
Terminal iidentification is sent to terminal by network side by radio resource control signaling in group；
Terminal iidentification is sent to terminal by the network side in random access signaling interactive process in group.
13. the method according to claim 1, wherein
The at most corresponding group scheduling of each terminal indicates information；
The group scheduling instruction information is using group mark scrambling；
The group scheduling instruction information is transmitted on a control channel.
14. according to the method described in claim 9, it is characterized in that, indicating information sending group scheduling according to described group of mark
Later, the method also includes:
Using group mark and organize interior terminal iidentification scrambling terminal data；
The terminal data is issued into single terminal.
15. the method according to claim 1, wherein indicating information sending group scheduling according to described group of mark
Later, the method also includes:
Receive the feedback information that the terminal is sent, wherein the feedback information is that the terminal is attempting decoding terminal data
It generates later.
16. according to the method for claim 15, which is characterized in that the method also includes:
It is retransmitted using the terminal of the control channel instruction decoding failure of terminal-specific.
17. according to the method for claim 16, which is characterized in that using the control channel instruction decoding failure of terminal-specific
Terminal carry out retransmit include at least one of:
Individually transmit scheduling information to the terminal of feedback information, wherein the scheduling information uses the control channel of terminal-specific
Carrying；
Occupancy and just biography same frequency resource location simultaneously use and just pass the identical modulation coding scheme re-transmission terminal data.
18. the method according to claim 1, wherein including:
The terminal data of N number of terminal is just to pass data.
19. a kind of data transmission method characterized by comprising
It receives network side and information is indicated according to the group scheduling that group mark is sent, wherein the group scheduling instruction information includes N number of end
The scheduling at end indicates information；
The data of the network side transmission are received according to the scheduling instruction information；
Wherein, the terminal data that the group scheduling instruction information is used to control the M terminals is transmitted, N >=1, M >=max
(2,N)。
20. according to the method for claim 19, which is characterized in that group scheduling instruction information include at least it is following it
One: modulation coding scheme is organized, to the instruction information of the M terminal in group frequency domain resource position.
21. according to the method for claim 20, which is characterized in that indicate that information receives the network side according to the scheduling
The data of transmission include:
Indicate information in described group of frequency domain resource position and described group of modulation coding scheme by decoding rule according to the scheduling
Attempt the data information of the decoding terminal.
22. according to the method for claim 21, which is characterized in that indicate that information is provided in described group of frequency domain according to the scheduling
Include by the data information that decoding rule attempts to decode the terminal in source position and described group of modulation coding scheme:
Group frequency domain position is increased into a frequency offset and measures offset frequency domain position, and group modulation coding scheme is increased by one
A modulation coding scheme offset obtains offset modulation coding mode；
Using offset modulation coding mode by the regular data information for attempting to decode the terminal of decoding on offset frequency domain position.
23. according to the method for claim 22, which is characterized in that
The frequency offset amount includes a resource unit, and/or, the modulation coding scheme offset includes modulating-coding side
Formula order.
24. according to the method for claim 21, which is characterized in that the decoding rule includes at least one of:
The data information of the terminal is successfully decoded, then ceases attempt to decode, determines successfully decoded；
The data information that decoding number reaches default maximum times and the incorrectly decoded terminal is attempted, then ceases attempt to decode,
Determine decoding failure；
The data information for having traversed the offset of all candidates and the incorrectly decoded terminal, then cease attempt to decode, really
Definite decoding failure.
25. according to the method for claim 24, which is characterized in that the decoding rule further includes at least one of:
When determining successfully decoded, the terminal feedback acknowledgment information；When determining decoding failure, the terminal feeds back non-acknowledgement
Information.
26. a kind of data transmission device is applied in network side characterized by comprising
Configuration module, for configuring identical group of mark for M terminal；
Sending module indicates information for sending group scheduling according to described group of mark, and the group scheduling instruction information includes N number of institute
State the scheduling instruction information of terminal；
Wherein, N >=1, M >=max (2, N).
27. device according to claim 26, which is characterized in that the scheduling instruction information includes at least following one:
Group frequency domain resource position, organizes modulation coding scheme, to the instruction information of the M terminal.
28. a kind of data transmission device is applied in terminal side characterized by comprising
Receiving module indicates information according to the group scheduling that group mark is sent for receiving network side, wherein the group scheduling instruction
Information includes that the scheduling of N number of terminal indicates information；
Transmission module, for receiving the data of the network side transmission according to the scheduling instruction information；
Wherein, the terminal data that the group scheduling instruction information is used to control the M terminals is transmitted, N >=1, M >=max
(2,N)。
29. device according to claim 28, which is characterized in that the scheduling instruction information includes at least following one:
Group frequency domain resource position, organizes modulation coding scheme, to the instruction information of the M terminal.
30. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein when described program is run
Method described in any one of perform claim requirement 1 to 25.
31. a kind of processor, which is characterized in that the processor is for running program, wherein right of execution when described program is run
Benefit require any one of 1 to 25 described in method.
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| CN201710459674.1A CN109152074A (en) | 2017-06-16 | 2017-06-16 | Data transmission method and device |
| PCT/CN2018/091815 WO2018228585A1 (en) | 2017-06-16 | 2018-06-19 | Data transmission method, device and storage medium |
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| CN201710459674.1A CN109152074A (en) | 2017-06-16 | 2017-06-16 | Data transmission method and device |
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