CN106937328A - Data transmission method and device based on carrier aggregation - Google Patents
Data transmission method and device based on carrier aggregation Download PDFInfo
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- CN106937328A CN106937328A CN201511019673.2A CN201511019673A CN106937328A CN 106937328 A CN106937328 A CN 106937328A CN 201511019673 A CN201511019673 A CN 201511019673A CN 106937328 A CN106937328 A CN 106937328A
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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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0037—Inter-user or inter-terminal allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/04—Error control
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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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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a kind of data transmission method and device based on carrier aggregation, methods described includes：At least one carrier units are chosen in carrier units more than described two and transmits the same data；What is sent in the network lateral UE instructions at least one carrier units is same data；What is sent in the network lateral UE instructions at least one carrier units is same data.
Description
Technical field
The present invention relates to carrier aggregation technology, more particularly to a kind of data transmission method based on carrier aggregation and
Device.
Background technology
In Long Term Evolution (LTE, Long Term Evolution) system, cell edge position signalling is weak and same
Frequency is disturbed, and is a problem of generally existing to the negative effect that network performance brings.
In order to improve the channel quality of LTE cell edges position, the reliability of user data transmission is lifted, carried
Various technological means, such as Inter-Cell Interference Coordination (ICIC, Inter Cell Interference are gone out
Coordination), coordinated multipoint transmission (CoMP, Coordinated Multiple Points
Transmission/Reception) etc..ICIC uses different frequencies by local area and adjacent area in cell edge position
Resource Block (RB, the Resource Block) resource of domain position evades co-channel interference；CoMP is by with frequency
Multi-cell coordination is evaded and signal enhancing realizing interference.
And continuing to develop with LTE technical standards, carrier aggregation (CA, Carrier Aggregation)
Technology is more ripe.The frequency band that CA is used is by 2 or multiple LTE carrier units are polymerized meeting of being formed
The frequency band of senior long term evolution (LTE-A, Long Term Evolution Advanced) associated specifications
Width, such as 10MHz, 20MHz even 100MHz.Multiple carrier waves of carrier aggregation CA, in frequency
Can be close to, can also be spaced apart.Carrier aggregation is user equipment (UE, User Equipment) rank
Concept, i.e., multiple LTE carrier units (CC, Component Carrier) polymerization formed width carrier wave
It is available to a certain UE's.Each CA UE only has a main plot (PCell, Primary Cell), and
Secondary cell (SCell, the Secondary of polymerizing power according to UE and the business demand different numbers of configuration
Cell), and, can only have a secondary cell SCell in a secondary carrier.
If not supporting cross-carrier scheduling, the physical layer descending control channel on each descending carrier unit CC
(PDCCH, Physical Downlink Control Channel) carry downlink resource control information (DCI,
Downlink Control Information) the same carrier units CC of correspondence Physical Downlink Shared Channel
(PDSCH, Physical Downlink Shared Channel) resource.If supporting cross-carrier scheduling,
The DCI for allowing PDCCH to carry is transmitted on a CC, and corresponding Physical Downlink Shared Channel
(PDSCH, Physical Downlink Shared Channel) resource is transmitted on another CC.
Whether each carrier units CC of UE enables cross-carrier scheduling and in other which carrier units CC
Upper scheduling, can be configured independently by RRC signaling.If supporting cross-carrier scheduling, may be selected
The section start of downlink resource control information DCI inserts carrier wave instructions field (CIF, Carrier an Indicator
Field) field, for specifying the corresponding carrier units CC of downlink resource control information DCI.Whether deposit
It is also to be indicated by signaling in CIF fields.Carrier aggregation technology, using multicarrier for same UE takes
Business, has natural advantage in the handling capacity for improving base station and UE equipment.Many carrier units of CA exist
Had differences in the covering of cell edge, but currently without solving the weak covering of cell edge using this species diversity
Technical scheme with problem of co-channel interference can be for reference.
The content of the invention
In order to solve the above technical problems, the embodiment of the invention provides a kind of data transfer based on carrier aggregation
Method and device.
A kind of data transmission method based on carrier aggregation, methods described includes：
Network side decision-making is the user equipment (UE) for supporting carrier aggregation CA using more than two carrier units
At least one carrier units are chosen when sending same data, in the carrier units more than described two to transmit
The same data；
What is sent in the network lateral UE instructions at least one carrier units is same data.
Used as a kind of implementation, the lateral UE of the network is indicated at least one carrier units
What is sent is same data, including：
The network side indicates at least one carrier units by Downlink Control Information DCI to the UE
Middle transmission is same data；
Or, the network side indicates described at least one to carry by Downlink Control Information DCI to the UE
What is sent in ripple unit is same data, and, during same data are at least one carrier units
Certain carrier units data.
Used as a kind of implementation, the lateral UE of the network is indicated at least one carrier units
What is sent is same data, including：
The network side is believed by the descending control in each carrier units at least one carrier units
Identical specific fields in breath DCI are same to what is sent in UE instruction at least one carrier units
The data of sample；
Or, the network side is by descending in each carrier units at least one carrier units
Identical specific fields in control information DCI indicate to be sent at least one carrier units to the UE
Be same data, and, the same data are certain loads at least one carrier units
The data of ripple unit.
Used as a kind of implementation, the specific fields include carrier wave instructions field CIF fields.
Used as a kind of implementation, the lateral UE of the network is indicated at least one carrier units
What is sent is same data, including：
The network side chooses a carrier units at least one carrier units and sends multiple DCI,
It is same data with indicate to send at least one carrier units；
Or, the network side chooses a carrier units at least one carrier units and sends multiple
DCI, is same data with indicate to send at least one carrier units, and, it is described same
Data be certain carrier units at least one carrier units data.
Used as a kind of implementation, the lateral UE of the network is indicated at least one carrier units
What is sent is same data, including：
When at least one carrier units include more than two carrier units, the network side is described same
Multiple DCI is sent on carrier units belonging to the data of sample, with indicating at least one carrier units
What other carrier units sent is the same data.
Used as a kind of implementation, the lateral UE of the network is indicated at least one carrier units
What is sent is same data, including：
The network side is indicated by the control unit MAC CE of specific medium education to the UE
What is sent at least one carrier units is same data；
Or, the network side is by the control unit MAC CE of specific medium education to described
What is sent in UE instructions at least one carrier units is same data, and, same data are institutes
State the data of certain carrier units at least one carrier units.
Used as a kind of implementation, the lateral UE of the network is indicated at least one carrier units
What is sent is same data, including：
The network side indicates at least one carrier wave list by specific configuration signal message to the UE
What is sent in unit is same data；
Or, the network side indicates described at least one by specific configuration signal message to the UE
What is sent in carrier units is same data, and, same data are at least one carrier units
In certain carrier units data.
A kind of data transmission method based on carrier aggregation, methods described includes：
User equipment (UE) receives the configured information that network side sends；
The UE determines the data transmitted in the multiple carrier units in polymerization carrier wave according to the instruction message
It is identical.
Used as a kind of implementation, methods described also includes：
During the UE determines that the same data are the multiple carrier units according to the instruction message
The data of certain carrier units.
Used as a kind of implementation, the UE is demodulated to the data of the multiple carrier units, works as solution
Recall a carrier units data it is correct when, not other carrier units in the multiple carrier units of re-demodulation
Data.
As a kind of implementation, after the UE demodulates the data of the multiple carrier units, institute is only chosen
The correct data of demodulation result stated in multiple carrier units are used, and to the network side feedback data
Receive correct；In the multiple carrier units during data correct without demodulation result, fed back to the network side
Data reception errors.
A kind of data transmission device based on carrier aggregation, described device includes：Decision package, select unit,
Transmission unit and indicating member, wherein：
Decision package, sends same for decision-making using the UE that more than two carrier units are support CA
Data；
Select unit, for choosing at least one carrier units in the carrier units more than described two；
Transmission unit, for transmitting the same data using at least one carrier units；
Indicating member, for being same to what is sent in UE instruction at least one carrier units
Data.
Used as a kind of implementation, the indicating member is additionally operable to by Downlink Control Information DCI to described
What is sent in UE instructions at least one carrier units is same data；
Or, indicate to be sent out at least one carrier units to the UE by Downlink Control Information DCI
What is sent is same data, and, same data are certain carrier waves at least one carrier units
The data of unit.
Used as a kind of implementation, the indicating member is additionally operable to by least one carrier units
The identical specific fields in Downlink Control Information DCI in each carrier units indicate described to the UE
What is sent at least one carrier units is same data；
Or, by the Downlink Control Information in each carrier units at least one carrier units
Identical specific fields in DCI are same to what is sent in UE instruction at least one carrier units
Data, and, the same data are certain carrier units at least one carrier units
Data.
Used as a kind of implementation, the specific fields include carrier wave instructions field CIF fields.
Used as a kind of implementation, the indicating member is additionally operable to be selected at least one carrier units
Take carrier units and send multiple DCI, be same with indicate transmission at least one carrier units
Data；
Or, multiple DCI is sent for choosing a carrier units at least one carrier units,
It is same data with indicate to send at least one carrier units, and, the same data
It is the data of certain carrier units at least one carrier units.
Used as a kind of implementation, the indicating member, being additionally operable at least one carrier units includes two
During the carrier units of the individual above, multiple DCI is sent on the carrier units belonging to the same data, with
Indicate that other carrier units at least one carrier units send is all the same data.
Used as a kind of implementation, the indicating member is additionally operable to the control by specific medium education
Unit MAC CE processed are described same to what is sent in UE instruction at least one carrier units
Data；
Or, indicated to the UE by the control unit MAC CE of specific medium education described
What is sent at least one carrier units is same data, and, same data are described at least one
The data of certain carrier units in carrier units.
Used as a kind of implementation, the indicating member is additionally operable to by specific configuration signal message to institute
State that UE indicates to send at least one carrier units is same data；
Or, by specific configuration signal message in UE instruction at least one carrier units
What is sent is same data, and, same data are certain loads at least one carrier units
The data of ripple unit.
A kind of data transmission device based on carrier aggregation, described device includes：Receiving unit and determining unit,
Wherein：
Receiving unit, the instruction message for receiving network side transmission；
Determining unit, for being determined to be transmitted in the multiple carrier units in polymerization carrier wave according to the instruction message
Data it is identical.
As a kind of implementation, the determining unit, be additionally operable to according to the instruction message judge whether
Indicate the data that the same data are certain carrier units.
Used as a kind of implementation, described device also includes：
Demodulating unit, is demodulated for the data to the multiple carrier units, when demodulating a carrier wave
When the data of unit are correct, not in the multiple carrier units of re-demodulation other carrier units data.
Used as a kind of implementation, described device also includes：
Feedback unit is chosen, for after the data that the demodulating unit demodulates the multiple carrier units, only
The correct data of demodulation result chosen in the multiple carrier units are used, and anti-to the network side
Feedback data receiver is correct；In the multiple carrier units during data correct without demodulation result, to the network
Side feedback data receives mistake.
In the technical scheme of the embodiment of the present invention, when network side decision-making is UE using more than two carrier units
When sending same data, at least one carrier units are chosen from more than two carrier units and sends same
The data of sample, and need to by indicate message to UE indicate at least one carrier units send be same number
According to, and the identical data are the data of certain carrier units at least one carrier units.So,
UE is after receiving and indicating message, you can it is determined that transmitted in multiple carrier units in polymerization carrier wave for same
Data, when the data for demodulating a carrier units are correct, not in the multiple carrier units of re-demodulation
The data of other carrier units.Using technical scheme so that UE is obtained in that mono- better than CA
The transmission performance of individual carrier units, can be used to evade the application scenarios such as co-channel interference, lifting cell-edge performance.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the data transmission method based on carrier aggregation of the embodiment of the present invention one；
Fig. 2 is the schematic flow sheet of the data transmission method based on carrier aggregation of the embodiment of the present invention two；
Fig. 3 is the composition structural representation of the data transmission device based on carrier aggregation of the embodiment of the present invention three
Figure；
Fig. 4 is the composition structural representation of the data transmission device based on carrier aggregation of the embodiment of the present invention three
Figure.
Specific embodiment
The characteristics of in order to more fully hereinafter understand the embodiment of the present invention and technology contents, below in conjunction with the accompanying drawings
Realization to the embodiment of the present invention is described in detail, appended accompanying drawing purposes of discussion only for reference, is not used for
Limit the embodiment of the present invention.
It is the downlink data for overcoming the weak covering of LTE cell edges present in prior art and co-channel interference to bring
The problem of transmission reliability difference, the embodiment of the present invention provides a kind of data transmission method based on carrier aggregation,
Including：Decision-making CA in base station will transmit same data using multiple carrier units, and transmission is CA
The data of certain carrier units, base station indicates UE, and what is issued in many carrier units of CA is same data,
And can be explicitly indicated be certain specific carriers unit data.UE indicates to judge many of CA according to base station
What is received in carrier units is identical data, and judge whether to specify be which carrier units data.
The multiple carrier units data of UE demodulation, only choose the correct data of demodulation result and use, and anti-to base station
Feedback data receiver is correct.If without the correct data of demodulation result, to base station feedback Data reception errors.
Below by way of specific example, the essence of the technical scheme of embodiment that the present invention is furture elucidated.
Fig. 1 is the schematic flow sheet of the data transmission method based on carrier aggregation of the embodiment of the present invention one, such as
Shown in Fig. 1, the data transmission method based on carrier aggregation of this example is comprised the following steps：
Step 101, network side decision-making is that the UE for supporting CA sends same using more than two carrier units
Data.
In the embodiment of the present invention, network side can be network side control network element for example base station, base station controller,
Mobile management entity (MME, Mobility Management Entity) etc..With base in the embodiment of the present invention
Illustrated as a example by standing, be not for limiting protection scope of the present invention.
When base station decision-making needs to use multiple carrier units for the same data of UE transmissions, it is necessary in UE
Polymerization carrier wave in carried out data transmission from some channel qualities preferably channel, and non-selected all polymerizations
Carrier wave carries out data transmission, and now, the data that the multiple carrier waves selected by base station send are on certain carrier wave
Data, these data are identical datas.
Step 102, network side chooses at least one carrier units hair in the carrier units more than described two
Send the same data.
In the embodiment of the present invention, base station is based on UE to measurement result of carrier units etc., for UE institutes it is true
Channel quality more preferably carrier units transmission data are chosen in fixed polymerization carrier units.For UE determines biography
, it is necessary to relevant information is notified into UE after the carrier units of transmission of data.
Step 103, what is sent in the network lateral UE instructions at least one carrier units is same
Data.
As a kind of implementation, in the embodiment of the present invention, at least one described in the lateral UE instructions of network
What is sent in individual carrier units is same data, including：
Base station is by Downlink Control Information (DCI, Downlink Control Information) to the UE
Indicate to send at least one carrier units is same data；Or, except indicate described at least
What is sent in one carrier units is that outside same data, it is at least one load also to indicate same data
The data of certain carrier units in ripple unit.
As a kind of implementation, in the embodiment of the present invention, at least one described in the lateral UE instructions of network
What is sent in individual carrier units is same data, including：
Base station is by identical specific in the DCI in each carrier units at least one carrier units
Field is same data to what is sent in UE instruction at least one carrier units；Or, remove
What is sent in instruction at least one carrier units is outside same data, also indicate same data to be
The data of certain carrier units at least one carrier units.The specific fields are indicated including carrier wave
Domain (CIF, Carrier Indicator Field) field.
As a kind of implementation, in the embodiment of the present invention, at least one described in the lateral UE instructions of network
What is sent in individual carrier units is same data, including：
Base station chooses a carrier units at least one carrier units and sends multiple DCI, to indicate
What is sent at least one carrier units is same data；Or, except indicating described at least one
What is sent in carrier units is that outside same data, it is at least one carrier wave list also to indicate same data
The data of certain carrier units in unit.
As a kind of implementation, in the embodiment of the present invention, at least one described in the lateral UE instructions of network
What is sent in individual carrier units is same data, including：
When at least one carrier units are two or more, base station is in the carrier wave belonging to the same data
Multiple DCI is sent on unit, to indicate what other carrier units at least one carrier units sent
All it is the same data.
As a kind of implementation, in the embodiment of the present invention, at least one described in the lateral UE instructions of network
What is sent in individual carrier units is same data, including：
Base station by the control unit MAC CE of specific medium education to the UE indicate described in extremely
What is sent in few carrier units is same data；Or, except indicating at least one carrier wave list
What is sent in unit is also to indicate outside same data during same data are at least one carrier units
The data of certain carrier units.
As a kind of implementation, in the embodiment of the present invention, at least one described in the lateral UE instructions of network
What is sent in individual carrier units is same data, including：
Base station indicates to be sent out at least one carrier units by specific configuration signal message to the UE
What is sent is same data；Or, it is same except indicate to send at least one carrier units
Outside data, the data that same data are certain carrier units at least one carrier units are also indicated.
In the embodiment of the present invention, base station can also indicate UE using other modes, in multiple carrier units
What is issued is same data, and is the data of which specific carriers unit.
Fig. 2 is the schematic flow sheet of the data transmission method based on carrier aggregation of the embodiment of the present invention two, such as
Shown in Fig. 2, the data transmission method based on carrier aggregation of this example is comprised the following steps：
Step 201, UE receives the instruction message that network side sends.
In the embodiment of the present invention, network side can be network side control network element for example base station, base station controller,
Mobile management entity (MME, Mobility Management Entity) etc..With base in the embodiment of the present invention
Illustrated as a example by standing, be not for limiting protection scope of the present invention.
In the embodiment of the present invention, base station sends to UE and indicates message, can specifically be accomplished in the following manner.
Base station can indicate UE by DCI, and what is issued in multiple carrier units is same data, and
It is the data of which specific carriers unit.
Base station uses the specific fields in DCI, such as multi-carrier indicator (CIF, Carrier Indicator Field)
During indicating, each carrier units for issuing same data has DCI to be handed down to same UE, in DCI
Carry identical CIF fields indicate be which specific carriers unit data, and be shown to be same data.
When base station issues multiple DCI to indicate using same carrier units, can be in the load belonging to data
Transmission multiple DCI on ripple unit, the DCI of the affiliated carrier units of data are referred to by the particular value of certain field
Show, what is transmitted on other carrier units is also the same data of this carrier units.
Base station can indicate UE by specific MAC CE, and what is issued in multiple carrier units is same
Data, and be the data of which specific carriers unit.Which carrier units is identified in MAC CE is
Data etc..
Base station can indicate UE by specific configuration signal message, and what is issued in multiple carrier units is same
The data of sample, and be the data of which specific carriers unit.
Base station can also indicate UE using other modes, and what is issued in multiple carrier units is same number
According to, and be the data of which specific carriers unit.
What base station can only indicate to issue in many carrier units of UE is identical data, and it is which to be not required to instruction
The data of individual specific carriers unit.
Step 202, UE is according to the instruction message, it is determined that being transmitted in multiple carrier units in polymerization carrier wave
Data it is identical.
UE is according to the DCI for issuing of base station, or MAC CE, or configuration signal message, Huo Zheqi
Its information, judge to transmit in multiple carrier units is same data, and whether also judge to indicate is
The data of which specific carriers unit.
During the data of the multiple carrier units of UE demodulation, if there is the correct data of demodulation result, other transmission
The data of the carrier units of identical data can be without re-demodulation.
After the data of the multiple carrier units of UE demodulation, only choose the correct data of demodulation result and use, and
It is correct to base station feedback data receiver.If without the correct data of demodulation result, to base station feedback data receiver
Mistake.
Technical scheme according to embodiments of the present invention, when network side decision-making is using more than two carrier units
When UE sends same data, the transmission of at least one carrier units is chosen from more than two carrier units
Same data, and need to by indicate message to UE indicate at least one carrier units send be same
Data, and the identical data are the data of certain carrier units at least one carrier units.This
Sample, UE receive indicate message after, you can it is determined that polymerization carrier wave in multiple carrier units in transmit be
Same data, when the data for demodulating a carrier units are correct, not the multiple carrier wave list of re-demodulation
The data of other carrier units in unit.Using technical scheme so that UE is obtained in that better than CA
The transmission performance of single carrier wave unit, can be used to evade the applied fields such as co-channel interference, lifting cell-edge performance
Scape.
Fig. 3 is the composition structural representation of the data transmission device based on carrier aggregation of the embodiment of the present invention three
Figure, as shown in figure 3, the data transmission device based on carrier aggregation of this example includes decision package 30, choosing
Unit 31, transmission unit 32 and indicating member 33 are selected, wherein：
Decision package 30, it is same for user equipment (UE) sends using more than two carrier units for decision-making
Data；
Select unit 31, for choosing at least one carrier units in the carrier units more than described two；
Transmission unit 32, for transmitting the same data using at least one carrier units；
Indicating member 33, for being same to what is sent in UE instruction at least one carrier units
Data.
Indicating member 33, is additionally operable to indicate described at least one to the UE by Downlink Control Information DCI
What is sent in carrier units is same data；
Or, indicate to be sent out at least one carrier units to the UE by Downlink Control Information DCI
What is sent is same data, and, same data are certain carrier waves at least one carrier units
The data of unit.
Used as a kind of implementation, indicating member 33 is additionally operable to by every at least one carrier units
Identical specific fields in Downlink Control Information DCI in one carrier units to the UE indicate described in extremely
What is sent in few carrier units is same data；
Or, by the Downlink Control Information in each carrier units at least one carrier units
Identical specific fields in DCI are same to what is sent in UE instruction at least one carrier units
Data, and, the same data are certain carrier units at least one carrier units
Data.Here, the specific fields include carrier wave instructions field CIF fields.
Used as a kind of implementation, indicating member 33 is additionally operable to be chosen at least one carrier units
One carrier units send multiple DCI, are same with indicate transmission at least one carrier units
Data；
Or, multiple DCI is sent for choosing a carrier units at least one carrier units,
It is same data with indicate to send at least one carrier units, and, the same data
It is the data of certain carrier units at least one carrier units.
As a kind of implementation, indicating member 33, in the carrier units belonging to the same data
Upper transmission multiple DCI, be all with indicate other carrier units at least one carrier units to send
The same data.
Used as a kind of implementation, indicating member 33 is additionally operable to the control by specific medium education
Unit MAC CE are same data to what is sent in UE instruction at least one carrier units；
Or, indicated to the UE by the control unit MAC CE of specific medium education described
What is sent at least one carrier units is same data, and, same data are described at least one
The data of certain carrier units in carrier units.
Used as a kind of implementation, indicating member 33 is additionally operable to by specific configuration signal message to described
What is sent in UE instructions at least one carrier units is same data；
Or, by specific configuration signal message in UE instruction at least one carrier units
What is sent is same data, and, same data are certain loads at least one carrier units
The data of ripple unit.
In the technical scheme of the embodiment of the present invention, when network side decision-making is UE using more than two carrier units
When sending same data, at least one carrier units are chosen from more than two carrier units and sends same
The data of sample, and need to by indicate message to UE indicate at least one carrier units send be same number
According to, and the identical data are the data of certain carrier units at least one carrier units.So,
UE is after receiving and indicating message, you can it is determined that transmitted in multiple carrier units in polymerization carrier wave for same
Data, when the data for demodulating a carrier units are correct, not in the multiple carrier units of re-demodulation
The data of other carrier units.Using technical scheme so that UE is obtained in that mono- better than CA
The transmission performance of individual carrier units, can be used to evade the application scenarios such as co-channel interference, lifting cell-edge performance.
It will be appreciated by those skilled in the art that above-mentioned each unit realizes that function can refer to foregoing embodiments
Associated description based on the data transmission method of carrier aggregation and understand.The function of above-mentioned each unit can be by fortune
Row is realized in the program in processing module, can also realized by specific logic circuit.Such as above-mentioned decision-making
Unit 30, select unit 31 etc. can be realized by FPGA, microprocessor and DSP, the He of transmission unit 32
Indicating member can be realized by antenna system.
Fig. 4 is the composition structural representation of the data transmission device based on carrier aggregation of the embodiment of the present invention three
Figure, as shown in figure 4, the data transmission device based on carrier aggregation of this example includes：Receiving unit 40
With determining unit 41, wherein：
Receiving unit 40, the instruction message for receiving network side transmission；
Determining unit 41, for according to it is described instruction message judge be polymerized carrier wave in multiple carrier units in
Transmission is same data.
In the embodiment of the present invention, network side can be network side control network element for example base station, base station controller,
Mobile management entity (MME, Mobility Management Entity) etc..With base in the embodiment of the present invention
Illustrated as a example by standing, be not for limiting protection scope of the present invention.
In the embodiment of the present invention, base station sends to UE and indicates message, can specifically be accomplished in the following manner.
Base station can indicate UE by DCI, and what is issued in multiple carrier units is same data, and
It is the data of which specific carriers unit.
Base station uses the specific fields in DCI, such as multi-carrier indicator (CIF, Carrier Indicator Field)
During indicating, each carrier units for issuing same data has DCI to be handed down to same UE, in DCI
Carry identical CIF fields indicate be which specific carriers unit data, and be shown to be same data.
When base station issues multiple DCI to indicate using same carrier units, can be in the load belonging to data
Transmission multiple DCI on ripple unit, the DCI of the affiliated carrier units of data are referred to by the particular value of certain field
Show, what is transmitted on other carrier units is also the same data of this carrier units.
Base station can indicate UE by specific MAC CE, and what is issued in multiple carrier units is same
Data, and be the data of which specific carriers unit.Which carrier units is identified in MAC CE is
Data etc..
Base station can indicate UE by specific configuration signal message, and what is issued in multiple carrier units is same
The data of sample, and be the data of which specific carriers unit.
Base station can also indicate UE using other modes, and what is issued in multiple carrier units is same number
According to, and be the data of which specific carriers unit.
What base station can only indicate to issue in many carrier units of UE is identical data, and it is which to be not required to instruction
The data of individual specific carriers unit.
In the embodiment of the present invention, the determining unit 41 is additionally operable to determine whether to refer to according to the instruction message
Show that the same data are the data of certain carrier units.
On the basis of the data transmission device based on carrier aggregation shown in Fig. 4, this example based on carrier wave
The data transmission device of polymerization also includes：
Demodulating unit (not shown in Fig. 4), is demodulated for the data to the multiple carrier units, when
Demodulate a carrier units data it is correct when, not other carrier wave lists in the multiple carrier units of re-demodulation
The data of unit.
On the basis of the data transmission device based on carrier aggregation shown in Fig. 4, this example based on carrier wave
The data transmission device of polymerization also includes：
Feedback unit (not shown in Fig. 4) is chosen, for demodulating the multiple carrier wave list in the demodulating unit
After the data of unit, the correct data of demodulation result only chosen in the multiple carrier units are used, and
Receive correct to the network side feedback data；Without the correct data of demodulation result in the multiple carrier units
When, receive mistake to the network side feedback data.
It will be appreciated by those skilled in the art that above-mentioned each unit realizes that function can refer to foregoing embodiments
Associated description based on the data transmission method of carrier aggregation and understand.The function of above-mentioned each unit can be by fortune
Row is realized in the program in processing module, can also realized by specific logic circuit.It is defined above
The grade of unit 41 can realize that the grade of receiving unit 40 can be by aerial system by FPGA, microprocessor and DSP
Unite and realize etc..
Using the technical scheme of the embodiment of the present invention, compared with prior art, on multiple carrier units of CA
Transmission is identical data, and UE receives the data of multiple carrier units, after demodulation, therefrom have selected one
Optimal result.Using the transmission performance being obtained in that the invention enables UE better than CA single carrier wave units,
Can be used to evade the scenes such as co-channel interference, lifting cell-edge performance.
Between technical scheme described in the embodiment of the present invention, in the case where not conflicting, can be in any combination.
In several embodiments provided by the present invention, it should be understood that disclosed method and smart machine,
Can realize by another way.Apparatus embodiments described above are only schematical, for example,
The division of the unit, only a kind of division of logic function, can there is other division side when actually realizing
Formula, such as：Multiple units or component can be combined, or be desirably integrated into another system, or some features can
To ignore, or do not perform.In addition, the coupling or straight each other of shown or discussed each part
Connect coupling or communication connection can be the INDIRECT COUPLING or communication connection of equipment or unit by some interfaces,
Can be electrical, machinery or other forms.
It is above-mentioned as separating component illustrate unit can be or may not be it is physically separate, as
The part that unit shows can be or may not be physical location, you can positioned at a place, also may be used
To be distributed on multiple NEs；Part or all of unit therein can be according to the actual needs selected
Realize the purpose of this embodiment scheme.
In addition, each functional unit in various embodiments of the present invention can be fully integrated into a second processing list
In unit, or each unit is individually as a unit, it is also possible to two or more unit collection
Into in a unit；Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ hard
Part adds the form of SFU software functional unit to realize.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited to
This, any one skilled in the art the invention discloses technical scope in, can readily occur in
Change or replacement, should all be included within the scope of the present invention.
Claims (24)
1. a kind of data transmission method based on carrier aggregation, it is characterised in that methods described includes：
Network side decision-making is the user equipment (UE) for supporting carrier aggregation CA using more than two carrier units
At least one carrier units are chosen when sending same data, in the carrier units more than described two to transmit
The same data；
What is sent in the network lateral UE instructions at least one carrier units is same data.
2. the data transmission method based on carrier aggregation according to claim 1, it is characterised in that institute
State that the lateral UE of network indicates to send at least one carrier units is same data, including：
The network side indicates at least one carrier units by Downlink Control Information DCI to the UE
Middle transmission is same data；
Or, the network side indicates described at least one to carry by Downlink Control Information DCI to the UE
What is sent in ripple unit is same data, and, during same data are at least one carrier units
Certain carrier units data.
3. the data transmission method based on carrier aggregation according to claim 2, it is characterised in that institute
State that the lateral UE of network indicates to send at least one carrier units is same data, including：
The network side is believed by the descending control in each carrier units at least one carrier units
Identical specific fields in breath DCI are same to what is sent in UE instruction at least one carrier units
The data of sample；
Or, the network side is by descending in each carrier units at least one carrier units
Identical specific fields in control information DCI indicate to be sent at least one carrier units to the UE
Be same data, and, the same data are certain loads at least one carrier units
The data of ripple unit.
4. the data transmission method based on carrier aggregation according to claim 3, it is characterised in that institute
Stating specific fields includes carrier wave instructions field CIF fields.
5. the data transmission method based on carrier aggregation according to claim 1, it is characterised in that institute
State that the lateral UE of network indicates to send at least one carrier units is same data, including：
The network side chooses a carrier units at least one carrier units and sends multiple DCI,
It is same data with indicate to send at least one carrier units；
Or, the network side chooses a carrier units at least one carrier units and sends multiple
DCI, is same data with indicate to send at least one carrier units, and, it is described same
Data be certain carrier units at least one carrier units data.
6. the data transmission method based on carrier aggregation according to claim 1, it is characterised in that institute
State that the lateral UE of network indicates to send at least one carrier units is same data, including：
When at least one carrier units include more than two carrier units, the network side is described same
Multiple DCI is sent on carrier units belonging to the data of sample, with indicating at least one carrier units
What other carrier units sent is the same data.
7. the data transmission method based on carrier aggregation according to claim 1, it is characterised in that institute
State that the lateral UE of network indicates to send at least one carrier units is same data, including：
The network side is indicated by the control unit MAC CE of specific medium education to the UE
What is sent at least one carrier units is same data；
Or, the network side is by the control unit MAC CE of specific medium education to described
What is sent in UE instructions at least one carrier units is same data, and, same data are institutes
State the data of certain carrier units at least one carrier units.
8. the data transmission method based on carrier aggregation according to claim 1, it is characterised in that institute
State that the lateral UE of network indicates to send at least one carrier units is same data, including：
The network side indicates at least one carrier wave list by specific configuration signal message to the UE
What is sent in unit is same data；
Or, the network side indicates described at least one by specific configuration signal message to the UE
What is sent in carrier units is same data, and, same data are at least one carrier units
In certain carrier units data.
9. a kind of data transmission method based on carrier aggregation, it is characterised in that methods described includes：
User equipment (UE) receives the configured information that network side sends；
The UE determines the data transmitted in the multiple carrier units in polymerization carrier wave according to the instruction message
It is identical.
10. the data transmission method based on carrier aggregation according to claim 9, it is characterised in that
Methods described also includes：
During the UE determines that the same data are the multiple carrier units according to the instruction message
The data of certain carrier units.
11. data transmission method based on carrier aggregation according to claim 9 or 10, its feature exists
In the UE is demodulated to the data of the multiple carrier units, when demodulating carrier units
When data are correct, not in the multiple carrier units of re-demodulation other carrier units data.
12. data transmission method based on carrier aggregation according to claim 9 or 10, its feature exists
In after the UE demodulates the data of the multiple carrier units, in only choosing the multiple carrier units
One correct data of demodulation result is used, and receives correct to the network side feedback data；It is the multiple
In carrier units during data correct without demodulation result, mistake is received to the network side feedback data.
13. a kind of data transmission devices based on carrier aggregation, it is characterised in that described device includes：Certainly
Plan unit, select unit, transmission unit and indicating member, wherein：
Decision package, sends same for decision-making using the UE that more than two carrier units are support CA
Data；
Select unit, for choosing at least one carrier units in the carrier units more than described two；
Transmission unit, for transmitting the same data using at least one carrier units；
Indicating member, for being same to what is sent in UE instruction at least one carrier units
Data.
14. data transmission devices based on carrier aggregation according to claim 13, it is characterised in that
The indicating member, is additionally operable to indicate at least one load to the UE by Downlink Control Information DCI
What is sent in ripple unit is same data；
Or, indicate to be sent out at least one carrier units to the UE by Downlink Control Information DCI
What is sent is same data, and, same data are certain carrier waves at least one carrier units
The data of unit.
15. data transmission devices based on carrier aggregation according to claim 14, it is characterised in that
The indicating member, is additionally operable to by descending in each carrier units at least one carrier units
Identical specific fields in control information DCI indicate to be sent at least one carrier units to the UE
Be same data；
Or, by the Downlink Control Information in each carrier units at least one carrier units
Identical specific fields in DCI are same to what is sent in UE instruction at least one carrier units
Data, and, the same data are certain carrier units at least one carrier units
Data.
16. data transmission devices based on carrier aggregation according to claim 15, it is characterised in that
The specific fields include carrier wave instructions field CIF fields.
17. data transmission devices based on carrier aggregation according to claim 13, it is characterised in that
The indicating member, is additionally operable to choose a carrier units transmission multiple at least one carrier units
DCI, is same data with indicate to send at least one carrier units；
Or, multiple DCI is sent for choosing a carrier units at least one carrier units,
It is same data with indicate to send at least one carrier units, and, the same data
It is the data of certain carrier units at least one carrier units.
18. data transmission methods based on carrier aggregation according to claim 13, it is characterised in that
The indicating member, when being additionally operable at least one carrier units including more than two carrier units,
Multiple DCI is sent on carrier units belonging to the same data, to indicate at least one carrier wave list
What other carrier units in unit sent is all the same data.
19. data transmission devices based on carrier aggregation according to claim 13, it is characterised in that
The indicating member, is additionally operable to the control unit MAC CE by specific medium education to described
What is sent in UE instructions at least one carrier units is the same data；
Or, indicated to the UE by the control unit MAC CE of specific medium education described
What is sent at least one carrier units is same data, and, same data are described at least one
The data of certain carrier units in carrier units.
20. data transmission devices based on carrier aggregation according to claim 13, it is characterised in that
The indicating member, is additionally operable to indicate described at least one to the UE by specific configuration signal message
What is sent in carrier units is same data；
Or, by specific configuration signal message in UE instruction at least one carrier units
What is sent is same data, and, same data are certain loads at least one carrier units
The data of ripple unit.
21. a kind of data transmission devices based on carrier aggregation, it is characterised in that described device includes：Connect
Unit and determining unit are received, wherein：
Receiving unit, the instruction message for receiving network side transmission；
Determining unit, for being determined to be transmitted in the multiple carrier units in polymerization carrier wave according to the instruction message
Data it is identical.
22. data transmission devices based on carrier aggregation according to claim 21, it is characterised in that
The determining unit, is additionally operable to judge that whether indicating the same data is according to the instruction message
The data of certain carrier units.
23. data transmission device based on carrier aggregation according to claim 21 or 22, its feature
It is that described device also includes：
Demodulating unit, is demodulated for the data to the multiple carrier units, when demodulating a carrier wave
When the data of unit are correct, not in the multiple carrier units of re-demodulation other carrier units data.
24. data transmission devices based on carrier aggregation according to claim 23, it is characterised in that
Described device also includes：
Feedback unit is chosen, for after the data that the demodulating unit demodulates the multiple carrier units, only
The correct data of demodulation result chosen in the multiple carrier units are used, and anti-to the network side
Feedback data receiver is correct；In the multiple carrier units during data correct without demodulation result, to the network
Side feedback data receives mistake.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511019673.2A CN106937328A (en) | 2015-12-30 | 2015-12-30 | Data transmission method and device based on carrier aggregation |
| PCT/CN2016/108025 WO2017114087A1 (en) | 2015-12-30 | 2016-11-30 | Carrier aggregation-based data transmission method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511019673.2A CN106937328A (en) | 2015-12-30 | 2015-12-30 | Data transmission method and device based on carrier aggregation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106937328A true CN106937328A (en) | 2017-07-07 |
Family
ID=59224564
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511019673.2A Withdrawn CN106937328A (en) | 2015-12-30 | 2015-12-30 | Data transmission method and device based on carrier aggregation |
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| Country | Link |
|---|---|
| CN (1) | CN106937328A (en) |
| WO (1) | WO2017114087A1 (en) |
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| CN109392137A (en) * | 2017-08-11 | 2019-02-26 | 电信科学技术研究院 | A kind of data sending, receiving method and device |
| WO2021147073A1 (en) * | 2020-01-23 | 2021-07-29 | Qualcomm Incorporated | Indicating bundling across carriers |
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| CN102405664A (en) * | 2009-02-20 | 2012-04-04 | 瑞典爱立信有限公司 | Multi-carrier transmission method and equipment |
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Also Published As
| Publication number | Publication date |
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| WO2017114087A1 (en) | 2017-07-06 |
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