WO2017114087A1 - 基于载波聚合的数据传输方法及装置 - Google Patents

基于载波聚合的数据传输方法及装置 Download PDF

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Publication number
WO2017114087A1
WO2017114087A1 PCT/CN2016/108025 CN2016108025W WO2017114087A1 WO 2017114087 A1 WO2017114087 A1 WO 2017114087A1 CN 2016108025 W CN2016108025 W CN 2016108025W WO 2017114087 A1 WO2017114087 A1 WO 2017114087A1
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Prior art keywords
carrier
unit
data
carrier unit
same data
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PCT/CN2016/108025
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English (en)
French (fr)
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徐龙
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中兴通讯股份有限公司
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Publication of WO2017114087A1 publication Critical patent/WO2017114087A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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
    • 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
    • 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
    • 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

Definitions

  • the present invention relates to a carrier aggregation technology, and in particular, to a data transmission method and apparatus based on carrier aggregation.
  • LTE Long Term Evolution
  • ICIC Inter Cell Interference Coordination
  • CoMP Coordinated Multiple Points Transmission
  • RB Resource Block
  • CA Carrier Aggregation
  • the frequency band used by the CA is a bandwidth that is formed by aggregation of two or more LTE carrier units in compliance with the Advanced Term Evolution Advanced (LTE-A) specification, such as 10 MHz, 20 MHz, or even 100 MHz. Multiple carriers of carrier aggregation CA may be next to each other in frequency or may be spaced apart.
  • the carrier aggregation is a user equipment (UE) level concept, that is, a bandwidth carrier formed by aggregation of multiple LTE carrier units (CCs) is provided to a certain UE.
  • UE user equipment
  • Each CA UE has only one primary cell (PCell, Primary Cell), and different numbers of secondary cells (SCells, secondary cells) are configured according to the aggregation capability and service requirements of the UE, and only one auxiliary device can be used on one secondary carrier.
  • PCell Primary Cell
  • SCells secondary cells
  • auxiliary device can be used on one secondary carrier.
  • the downlink resource control carried by the Physical Downlink Control Channel (PDCCH) on each downlink carrier unit CC The information (DCI, Downlink Control Information) corresponds to a Physical Downlink Shared Channel (PDSCH) resource of the same carrier unit CC. If cross-carrier scheduling is supported, the DCI carried by the PDCCH is allowed to be transmitted on one CC, and the corresponding Physical Downlink Shared Channel (PDSCH) resource is transmitted on another CC.
  • PDSCH Physical Downlink Shared Channel
  • each carrier unit CC of the UE enables cross-carrier scheduling and scheduling on which other carrier unit CC, can be configured independently through RRC signaling.
  • a CIF Carrier Indicator Field
  • a CIF field may be inserted at the beginning of the downlink resource control information DCI to specify the carrier unit CC corresponding to the downlink resource control information DCI.
  • the presence or absence of a CIF field is also indicated by signaling.
  • Carrier aggregation technology using multiple carriers to serve the same UE, has a natural advantage in improving the throughput of base stations and UE devices. There are differences in the coverage of multiple cell carriers at the cell edge, but there is currently no technical solution for utilizing this difference to solve the problem of weak coverage and co-channel interference at the cell edge.
  • an embodiment of the present invention provides a data transmission method and apparatus based on carrier aggregation.
  • a carrier aggregation based data transmission method comprising:
  • the network side decision uses two or more carrier units to transmit the same data for the user equipment UE supporting the carrier aggregation CA, selecting at least one carrier unit from the two or more carrier units to transmit the same data;
  • the network side indicates to the UE that the same data is sent in the at least one carrier unit.
  • the network side indicates to the UE that the same data is sent in the at least one carrier unit, including:
  • the network side indicates the at least one carrier to the UE by using downlink control information DCI
  • DCI downlink control information
  • the network side indicates, by the downlink control information DCI, the same data that is sent by the at least one carrier unit to the UE, and the same data is data of a certain carrier unit of the at least one carrier unit. .
  • the network side indicates to the UE that the same data is sent in the at least one carrier unit, including:
  • the network side indicates to the UE, by using the same specific field in the downlink control information DCI in each of the at least one carrier unit, that the same data is sent in the at least one carrier unit;
  • the network side indicates, by the same specific field in the downlink control information DCI in each carrier unit of the at least one carrier unit, that the same data is sent in the at least one carrier unit, and The same data is data of a certain one of the at least one carrier unit.
  • the specific field includes a carrier indication field CIF field.
  • the network side indicates to the UE that the same data is sent in the at least one carrier unit, including:
  • the network side selects one carrier unit in the at least one carrier unit to send multiple DCIs to indicate that the same data is sent in the at least one carrier unit;
  • the network side selects one carrier unit in the at least one carrier unit to send multiple DCIs to indicate that the same data is sent in the at least one carrier unit, and the same data is the at least Data of a carrier component in a carrier unit.
  • the network side indicates to the UE that the same data is sent in the at least one carrier unit, including:
  • the network side sends multiple DCIs on the carrier unit to which the same data belongs to indicate that the other carrier units in the at least one carrier unit are sent. It is the same data as described.
  • the network side indicates to the UE that the same data is sent in the at least one carrier unit, including:
  • the network side indicates, by the control unit MAC CE of the specific media access control, to the UE that the same data is sent in the at least one carrier unit;
  • the network side indicates, by the control unit MAC CE of the specific media access control, that the same data is sent in the at least one carrier unit, and the same data is in the at least one carrier unit.
  • the data of a certain carrier unit is not limited to, but not limited to, but not limited to, but not limited to, but not limited to, but not limited to, but not limited to, but not limited to, but not limited to, but not limited to, but not limited to, but not limited to the control unit MAC CE of the specific media access control, that the same data is sent in the at least one carrier unit, and the same data is in the at least one carrier unit.
  • the data of a certain carrier unit is a certain carrier unit.
  • the network side indicates to the UE that the same data is sent in the at least one carrier unit, including:
  • the network side indicates to the UE, by using a specific configuration signaling message, that the same data is sent in the at least one carrier unit;
  • the network side indicates to the UE, by using a specific configuration signaling message, that the same data is sent in the at least one carrier unit, and the same data is a certain carrier unit in the at least one carrier unit.
  • the data is a specific configuration signaling message.
  • a carrier aggregation based data transmission method comprising:
  • the user equipment UE receives the indication information sent by the network side;
  • the UE determines, according to the indication message, that data transmitted in multiple carrier units in the aggregated carrier is the same.
  • the method further includes:
  • the UE demodulates data of the multiple carrier units, and when demodulating data of one carrier unit is correct, no longer demodulating data of other carrier units in the multiple carrier units. .
  • the UE after demodulating the data of the multiple carrier units, the UE selects only one of the multiple carrier units to use the correct demodulation result, and sends the data to the network side.
  • the feedback data is received correctly; when there is no data with correct demodulation results in the plurality of carrier units, the data reception error is fed back to the network side.
  • a data transmission device based on carrier aggregation comprising: a decision unit, a selection unit, a transmission unit and an indication unit, wherein:
  • a decision unit configured to use the more than two carrier units to transmit the same data for the UE supporting the CA;
  • a selecting unit configured to select at least one carrier unit from the two or more carrier units
  • a transmission unit configured to transmit the same data by using the at least one carrier unit
  • an indication unit configured to indicate to the UE that the same data is sent in the at least one carrier unit.
  • the indication unit is further configured to: indicate, by using downlink control information DCI, to the UE that the same data is sent in the at least one carrier unit;
  • the downlink control information DCI is used to indicate to the UE that the same data is sent in the at least one carrier unit, and the same data is data of a certain carrier unit in the at least one carrier unit.
  • the indication unit is further configured to: indicate, by the UE, the at least one carrier unit to send by using the same specific field in the downlink control information DCI in each of the at least one carrier unit Is the same data;
  • the specific field includes a carrier indication field CIF field.
  • the indication unit is further configured to: select one carrier unit in the at least one carrier unit to send multiple DCIs to indicate that the at least one carrier unit is sent The same data is sent;
  • the indicating unit is further configured to: when the at least one carrier unit includes two or more carrier units, send multiple DCIs on the carrier unit to which the same data belongs, to indicate the at least The same data is transmitted by other carrier units in one carrier unit.
  • the indication unit is further configured to indicate, by the control unit MAC CE of the specific media access control, to the UE that the same data is sent in the at least one carrier unit;
  • control unit MAC CE of the specific medium access control indicates to the UE that the same data is sent in the at least one carrier unit, and the same data is a certain carrier in the at least one carrier unit.
  • Unit data
  • the indication unit is further configured to indicate to the UE, by using a specific configuration signaling message, that the same data is sent in the at least one carrier unit;
  • the UE is indicated by the specific configuration signaling message that the same data is sent in the at least one carrier unit, and the same data is data of a certain carrier unit in the at least one carrier unit.
  • a data transmission device based on carrier aggregation comprising: a receiving unit and a determining unit, wherein:
  • a receiving unit configured to receive an indication message sent by the network side
  • a determining unit configured to determine, according to the indication message, that data transmitted in the plurality of carrier units in the aggregated carrier is the same.
  • the determining unit is further configured to determine, according to the indication message, whether the same data is indicated as data of a certain carrier unit.
  • the device further includes:
  • a demodulation unit configured to demodulate data of the plurality of carrier units, and when demodulating data of one carrier unit is correct, data of other carrier units of the plurality of carrier units is not demodulated.
  • the device further includes:
  • selecting a feedback unit configured to: after the demodulation unit demodulates the data of the multiple carrier units, select only one of the plurality of carrier units to use the correct demodulation result, and feed back to the network side The data is received correctly; when there is no data with correct demodulation results in the plurality of carrier units, the data reception error is fed back to the network side.
  • Another embodiment of the present invention provides a computer storage medium, where the computer storage medium stores execution instructions for performing one or a combination of the steps in the foregoing method embodiments.
  • the network side decision uses two or more carrier units to send the same data for the UE, selecting at least one carrier unit from the two or more carrier units to send the same data, and
  • the indication message indicates to the UE that at least one carrier unit transmits the same data, and the same data is data of a certain one of the at least one carrier unit.
  • the UE can determine that the same data is transmitted in multiple carrier units in the aggregated carrier, and when the data of one carrier unit is demodulated correctly, the multiple carriers are not demodulated.
  • the data of other carrier units in the unit With the technical solution of the present invention, the UE can obtain the transmission performance better than the CA single carrier unit, and can be used to avoid the same-frequency interference and improve the application performance of the cell edge performance.
  • FIG. 1 is a schematic flowchart of a data transmission method based on carrier aggregation according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic flowchart of a carrier aggregation-based data transmission method according to Embodiment 2 of the present invention
  • FIG. 3 is a schematic structural diagram of a structure of a data transmission apparatus based on carrier aggregation according to Embodiment 3 of the present invention.
  • FIG. 4 is a schematic structural diagram of a structure of a data transmission apparatus based on carrier aggregation according to Embodiment 3 of the present invention.
  • the embodiment of the present invention provides a carrier aggregation-based data transmission method, including:
  • the carrier unit transmits the same data, and transmits data of a certain carrier unit in the CA.
  • the base station indicates the UE, and the same data is sent in multiple carrier units of the CA, and the indication can be explicitly indicated by a specific carrier unit. data.
  • the UE determines, according to the indication of the base station, that the same data is received in the multiple carrier units of the CA, and determines whether the carrier unit data is specified.
  • the UE demodulates multiple carrier unit data, selects only one data with the correct demodulation result, and feeds back the data to the base station correctly. If there is no correct data for the demodulation result, the data reception error is fed back to the base station.
  • the carrier aggregation-based data transmission method of this example includes the following steps:
  • step 101 the network side decision uses two or more carrier units to send the same data to the UE supporting the CA.
  • the network side may be a control network element on the network side, such as a base station, a base station controller, a Mobility Management Entity (MME), or the like.
  • a base station is taken as an example for illustration, and is not intended to limit the scope of the present invention.
  • the base station When the base station decides to use multiple carrier units to send the same data to the UE, it needs to In the aggregated carrier of the UE, some channels with better channel quality are selected for data transmission, and not all aggregated carriers are selected for data transmission. At this time, the data sent by multiple carriers selected by the base station is data on a certain carrier, and the data is All are the same data.
  • Step 102 The network side selects at least one carrier unit from the two or more carrier units to send the same data.
  • the base station selects carrier component transmission data with better channel quality in the aggregated carrier unit determined by the UE based on the measurement result of the UE to the carrier unit. After the carrier unit for transmitting data is determined for the UE, the related information needs to be notified to the UE.
  • Step 103 The network side indicates to the UE that the same data is sent in the at least one carrier unit.
  • the network side indicates to the UE that the same data is sent in the at least one carrier unit, including:
  • the base station indicates, by using downlink control information (Downlink Control Information, DCI for short), that the same data is sent in the at least one carrier unit; or, in addition to indicating that the same data is sent in the at least one carrier unit In addition, the same data is also indicated as data of a certain one of the at least one carrier unit.
  • DCI Downlink Control Information
  • the network side indicates to the UE that the same data is sent in the at least one carrier unit, including:
  • the base station indicates to the UE, by using the same specific field in the DCI in each of the at least one carrier unit, that the same data is sent in the at least one carrier unit; or, in addition to indicating the at least one carrier unit In addition to the same data transmitted, the same data is also indicated as data of a certain carrier unit in the at least one carrier unit.
  • the specific field includes a Carrier Indicator Field (CIF) field.
  • the network side indicates to the UE that the same data is sent in the at least one carrier unit, including:
  • the base station selects one carrier unit in the at least one carrier unit to send multiple DCIs to indicate that the same data is sent in the at least one carrier unit; or, in addition to indicating the The same data is transmitted in at least one carrier unit, and the same data is indicated as data of a certain carrier unit in the at least one carrier unit.
  • the network side indicates to the UE that the same data is sent in the at least one carrier unit, including:
  • the base station sends multiple DCIs on the carrier unit to which the same data belongs, to indicate that the other carrier units in the at least one carrier unit are all sent by the same data.
  • the network side indicates to the UE that the same data is sent in the at least one carrier unit, including:
  • the base station indicates to the UE that the same data is sent in the at least one carrier unit by using a control unit MAC CE of a specific medium access control; or, in addition to indicating that the same data is sent in the at least one carrier unit Also indicating that the same data is data of a certain one of the at least one carrier unit.
  • the network side indicates to the UE that the same data is sent in the at least one carrier unit, including:
  • the base station indicates to the UE, by using a specific configuration signaling message, that the same data is sent in the at least one carrier unit; or, in addition to indicating that the same data is sent in the at least one carrier unit, indicating the same
  • the data is data of a certain one of the at least one carrier unit.
  • the base station may also use other manners to indicate the UE, and the same data is sent in multiple carrier units, and which specific carrier unit data.
  • the carrier aggregation-based data transmission method of this example includes the following steps:
  • Step 201 The UE receives an indication message sent by the network side.
  • the network side may be a control network element on the network side, such as a base station, a base station controller, a Mobility Management Entity (MME), or the like.
  • a base station is taken as an example for illustration, and is not intended to limit the scope of the present invention.
  • the base station sends an indication message to the UE, which can be specifically implemented in the following manner.
  • the base station can indicate to the UE through the DCI that the same data is sent in the multiple carrier units, and which particular carrier unit is the data.
  • the carrier unit that delivers the same data is sent to the same UE by DCI, and the DCI carries the same CIF.
  • the field indicates which particular carrier unit is the data and indicates the same data.
  • multiple DCIs may be sent on the carrier unit to which the data belongs, and the DCI of the carrier unit to which the data belongs is indicated by a special value of a certain field, on other carrier units. The same data is transmitted for this carrier unit.
  • the base station can indicate the UE by using a specific MAC CE, and the same data is sent in multiple carrier units, and which specific carrier unit is the data.
  • the base station may indicate the UE by using a specific configuration signaling message, and the same data is sent in multiple carrier units, and which specific carrier unit is the data.
  • the base station may also use other manners to indicate the UE, the same data is sent in multiple carrier units, and which specific carrier unit data.
  • the base station may only indicate that the same data is sent in multiple carrier units of the UE, and does not need to indicate which specific carrier unit data.
  • Step 202 The UE determines, according to the indication message, that data transmitted in multiple carrier units in the aggregated carrier is the same.
  • the UE determines, according to the DCI sent by the base station, or the MAC CE, or the configuration signaling message, or other information, that the same data is transmitted in multiple carrier units, and also determines whether the data of the specific carrier unit is indicated. .
  • the UE demodulates data of multiple carrier units, if there is a data with correct demodulation results, the data of other carrier units transmitting the same data may not be demodulated.
  • the UE After the UE demodulates the data of multiple carrier units, only one data with the correct demodulation result is selected, and the data received to the base station is correctly received. If there is no correct data for the demodulation result, the data reception error is fed back to the base station.
  • the network side decision uses two or more carrier units to transmit the same data for the UE, selecting at least one carrier unit from the two or more carrier units to send the same data, and
  • the indication message indicates to the UE that at least one carrier unit transmits the same data, and the same data is data of a certain one of the at least one carrier unit.
  • the UE can determine that the same data is transmitted in multiple carrier units in the aggregated carrier, and when the data of one carrier unit is demodulated correctly, the multiple carriers are not demodulated.
  • the data of other carrier units in the unit can obtain the transmission performance better than the single carrier component of the CA, and can be used to avoid the same-frequency interference and improve the application performance of the cell edge performance.
  • the carrier aggregation-based data transmission apparatus of this example includes a decision unit 30, a selection unit 31, a transmission unit 32, and Instructing unit 33, wherein:
  • the decision unit 30 is configured to use the two or more carrier units to transmit the same data for the user equipment UE;
  • the selecting unit 31 is configured to select at least one carrier unit from the two or more carrier units;
  • the transmitting unit 32 is configured to transmit the same data by using the at least one carrier unit;
  • the indicating unit 33 is configured to indicate to the UE that the same data is sent in the at least one carrier unit.
  • the indicating unit 33 is further configured to indicate to the UE by the downlink control information DCI that the same data is sent in the at least one carrier unit;
  • the downlink control information DCI is used to indicate to the UE that the same data is sent in the at least one carrier unit, and the same data is data of a certain carrier unit in the at least one carrier unit.
  • the indication unit 33 is further configured to indicate, by the same specific field in the downlink control information DCI in each of the at least one carrier unit, the UE to send the at least one carrier unit. Is the same data;
  • the specific field includes a carrier indication field CIF field.
  • the indication unit 33 is further configured to: select one carrier unit in the at least one carrier unit to send multiple DCIs to indicate that the same data is sent in the at least one carrier unit;
  • the indication unit 33 is configured to send, on the carrier component to which the same data belongs, multiple DCIs to indicate that all other carrier units in the at least one carrier unit send the same data. .
  • the indication unit 33 is further configured to indicate, by the control unit MAC CE of the specific media access control, to the UE that the same data is sent in the at least one carrier unit;
  • control unit MAC CE of the specific medium access control indicates to the UE that the same data is sent in the at least one carrier unit, and the same data is a certain carrier in the at least one carrier unit.
  • Unit data
  • the indicating unit 33 is further configured to indicate to the UE, by using a specific configuration signaling message, that the same data is sent in the at least one carrier unit;
  • the UE is indicated by the specific configuration signaling message that the same data is sent in the at least one carrier unit, and the same data is data of a certain carrier unit in the at least one carrier unit.
  • the network side decision uses two or more carrier units to send the same data for the UE, selecting at least one carrier unit from the two or more carrier units to send the same data, and
  • the indication message indicates to the UE that at least one carrier unit transmits the same data, and the same data is data of a certain one of the at least one carrier unit.
  • the UE can determine that the same data is transmitted in multiple carrier units in the aggregated carrier, and when the data of one carrier unit is demodulated correctly, the multiple carriers are not demodulated.
  • the data of other carrier units in the unit can obtain the transmission performance better than the single carrier component of the CA, and can be used to avoid the same-frequency interference and improve the application performance of the cell edge performance.
  • the implementation functions of the foregoing units may be understood by referring to the related description of the carrier aggregation based data transmission method of the foregoing embodiments.
  • the functions of the above units can be realized by a program running on the processing module, or can be realized by a specific logic circuit.
  • the decision unit 30, the selection unit 31, and the like can be implemented by an FPGA, a microprocessor, and a DSP, and the transmission unit 32 and the indication unit can be implemented by an antenna system.
  • the carrier aggregation-based data transmission apparatus of this example includes: a receiving unit 40 and a determining unit 41, where:
  • the receiving unit 40 is configured to receive an indication message sent by the network side;
  • the determining unit 41 is configured to determine, according to the indication message, that the same data is transmitted in the plurality of carrier units in the aggregated carrier.
  • the network side may be a control network element on the network side, such as a base station, a base station controller, a Mobility Management Entity (MME), or the like.
  • a base station is taken as an example for illustration, and is not intended to limit the scope of the present invention.
  • the base station sends an indication message to the UE, which may be specifically implemented in the following manner. Now.
  • the base station can indicate to the UE through the DCI that the same data is sent in the multiple carrier units, and which particular carrier unit is the data.
  • the carrier unit that delivers the same data is sent to the same UE by DCI, and the DCI carries the same CIF.
  • the field indicates which particular carrier unit is the data and indicates the same data.
  • multiple DCIs may be sent on the carrier unit to which the data belongs, and the DCI of the carrier unit to which the data belongs is indicated by a special value of a certain field, on other carrier units. The same data is transmitted for this carrier unit.
  • the base station can indicate the UE by using a specific MAC CE, and the same data is sent in multiple carrier units, and which specific carrier unit is the data.
  • the base station may indicate the UE by using a specific configuration signaling message, and the same data is sent in multiple carrier units, and which specific carrier unit is the data.
  • the base station may also use other manners to indicate the UE, the same data is sent in multiple carrier units, and which specific carrier unit data.
  • the base station may only indicate that the same data is sent in multiple carrier units of the UE, and does not need to indicate which specific carrier unit data.
  • the determining unit 41 is further configured to determine, according to the indication message, whether the data indicating that the same data is a certain carrier unit is indicated.
  • the carrier aggregation-based data transmission apparatus of this example further includes:
  • a demodulation unit (not shown in FIG. 4) configured to demodulate data of the plurality of carrier units, and when demodulating data of one carrier unit is correct, not demodulating the plurality of carrier units Data for other carrier units.
  • the carrier aggregation-based data transmission apparatus of this example further includes:
  • Selecting a feedback unit (not shown in FIG. 4), configured to select only one of the plurality of carrier units to use the correct demodulation result after the demodulation unit demodulates the data of the plurality of carrier units And receiving, by the network side, data reception is correct; when there is no data with correct demodulation result in the plurality of carrier units, the data reception error is fed back to the network side.
  • the implementation functions of the foregoing units may be understood by referring to the related description of the carrier aggregation based data transmission method of the foregoing embodiments.
  • the functions of the above units can be realized by a program running on the processing module, or can be realized by a specific logic circuit.
  • the determining unit 41 and the like can be implemented by an FPGA, a microprocessor, and a DSP, and the receiving unit 40 and the like can be implemented by an antenna system.
  • the same data is transmitted on multiple carrier units of the CA, and the UE receives data of multiple carrier units, and after demodulation, selects an optimal one. result.
  • the solution in the embodiment of the present invention enables the UE to obtain the transmission performance better than the single carrier component of the CA, and can be used to avoid the same-frequency interference and improve the edge performance of the cell.
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium stores an execution instruction, where the execution instruction is used to perform one or a combination of the steps in the foregoing method embodiments.
  • the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a Random Access Memory (RAM).
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • the disclosed method and smart device may be implemented in other manners.
  • the device embodiments described above are merely illustrative
  • the division of the unit is only a logical function division, and the actual implementation may have another division manner, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be Ignore, or not execute.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one second processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit;
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • a carrier aggregation-based data transmission method and apparatus provided by an embodiment of the present invention have the following beneficial effects: enabling a UE to obtain a transmission performance superior to a single carrier component of a CA, which can be used to avoid co-channel interference and improve a cell edge.
  • Application scenarios such as performance.

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Abstract

本发明公开了一种基于载波聚合的数据传输方法及装置，所述方法包括：网络侧决策使用两个以上的载波单元为支持载波聚合CA的用户设备UE发送同样的数据时，从所述两个以上的载波单元中选取至少一个载波单元传输所述同样的数据；所述网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据。

Description

基于载波聚合的数据传输方法及装置 技术领域
本发明涉及载波聚合技术，尤其涉及一种基于载波聚合的数据传输方法及装置。
背景技术
长期演进(LTE，Long Term Evolution)系统中，小区边缘位置信号弱和同频干扰，对网络性能带来的负面影响是普遍存在的一个问题。
为了提高LTE小区边缘位置的信道质量，提升用户数据传输的可靠性，提出了各种技术手段，例如小区间干扰协调(ICIC，Inter Cell Interference Coordination)，多点协作传输(CoMP，Coordinated Multiple Points Transmission/Reception)等。ICIC通过本区和邻区在小区边缘位置使用不同频域位置的资源块(RB，Resource Block)资源来规避同频干扰；CoMP通过同频多小区协同来实现干扰规避和信号增强。
而随着LTE技术标准的不断发展，载波聚合(CA，Carrier Aggregation)技术愈发成熟。CA使用的频带是由2个或多个LTE载波单元聚合形成的符合高级长期演进(LTE-A，Long Term Evolution Advanced)相关技术规范的频带宽度，如10MHz、20MHz甚至100MHz。载波聚合CA的多个载波，频率上可以紧挨着，也可间隔开。载波聚合是用户设备(UE，User Equipment)级别的概念，即多个LTE载波单元(CC，Component Carrier)聚合形成的宽度载波是提供给某一UE的。每个CA UE仅有一个主小区(PCell，Primary Cell)，而根据UE的聚合能力和业务需求配置不同个数的辅小区(SCell，Secondary Cell)，而且，一个辅载波上只能有一个辅小区SCell。
如果不支持跨载波调度，每个下行载波单元CC上的物理层下行控制信道(PDCCH，Physical Downlink Control Channel)携带的下行资源控制 信息(DCI，Downlink Control Information)对应同一个载波单元CC的物理下行共享信道(PDSCH，Physical Downlink Shared Channel)资源。如果支持跨载波调度，则允许PDCCH携带的DCI在一个CC上传输，而对应的物理下行共享信道(PDSCH，Physical Downlink Shared Channel)资源在另一个CC上传输。
UE的每个载波单元CC是否使能跨载波调度以及在其它哪个载波单元CC上调度，可以独立地通过RRC信令进行配置。如果支持跨载波调度，可选择在下行资源控制信息DCI的起始处插入一个载波指示域(CIF，Carrier Indicator Field)字段，用于指定该下行资源控制信息DCI对应的载波单元CC。是否存在CIF字段也是通过信令指示的。载波聚合技术，使用多载波为同一个UE服务，在提高基站和UE设备的吞吐量方面有着天然的优势。CA多个载波单元在小区边缘的覆盖上存在差异，但目前没有利用这种差异来解决小区边缘弱覆盖和同频干扰问题的技术方案可供参考。
发明内容
为解决上述技术问题，本发明实施例提供了一种基于载波聚合的数据传输方法及装置。
一种基于载波聚合的数据传输方法，所述方法包括：
网络侧决策使用两个以上的载波单元为支持载波聚合CA的用户设备UE发送同样的数据时，从所述两个以上的载波单元中选取至少一个载波单元传输所述同样的数据；
所述网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据。
作为一种实现方式，所述网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据，包括：
所述网络侧通过下行控制信息DCI向所述UE指示所述至少一个载波 单元中发送的是同样的数据；
或者，所述网络侧通过下行控制信息DCI向所述UE指示所述至少一个载波单元中发送的是同样的数据，以及，同样的数据是所述至少一个载波单元中的某个载波单元的数据。
作为一种实现方式，所述网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据，包括：
所述网络侧通过所述至少一个载波单元中每一个载波单元中的下行控制信息DCI中的相同特定字段向所述UE指示所述至少一个载波单元中发送的是同样的数据；
或者，所述网络侧通过所述至少一个载波单元中每一个载波单元中的下行控制信息DCI中的相同特定字段向所述UE指示所述至少一个载波单元中发送的是同样的数据，以及，所述同样的数据是所述至少一个载波单元中的某个载波单元的数据。
作为一种实现方式，所述特定字段包括载波指示域CIF字段。
作为一种实现方式，所述网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据，包括：
所述网络侧在所述至少一个载波单元中选取一个载波单元发送多个DCI，以指示所述至少一个载波单元中发送的是同样的数据；
或者，所述网络侧在所述至少一个载波单元中选取一个载波单元发送多个DCI，以指示所述至少一个载波单元中发送的是同样的数据，以及，所述同样的数据是所述至少一个载波单元中的某个载波单元的数据。
作为一种实现方式，所述网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据，包括：
所述至少一个载波单元包括两个以上的载波单元时，所述网络侧在所述同样的数据所属的载波单元上发送多个DCI，以指示所述至少一个载波单元中的其他载波单元发送的是所述同样的数据。
作为一种实现方式，所述网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据，包括：
所述网络侧通过特定的媒体接入控制的控制单元MAC CE向所述UE指示所述至少一个载波单元中发送的是同样的数据；
或者，所述网络侧通过特定的媒体接入控制的控制单元MAC CE向所述UE指示所述至少一个载波单元中发送的是同样的数据，以及，同样的数据是所述至少一个载波单元中的某个载波单元的数据。
作为一种实现方式，所述网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据，包括：
所述网络侧通过特定的配置信令消息向所述UE指示所述至少一个载波单元中发送的是同样的数据；
或者，所述网络侧通过特定的配置信令消息向所述UE指示所述至少一个载波单元中发送的是同样的数据，以及，同样的数据是所述至少一个载波单元中的某个载波单元的数据。
一种基于载波聚合的数据传输方法，所述方法包括：
用户设备UE接收网络侧发送的指示信息；
所述UE根据所述指示消息确定聚合载波中的多个载波单元中传输的数据相同。
作为一种实现方式，所述方法还包括：
所述UE根据所述指示消息确定所述同样的数据是所述多个载波单元中的某个载波单元的数据。
作为一种实现方式，所述UE对所述多个载波单元的数据进行解调，当解调出一个载波单元的数据正确时，不再解调所述多个载波单元中其他载波单元的数据。
作为一种实现方式，所述UE解调所述多个载波单元的数据后，只选取所述多个载波单元中的一个解调结果正确的数据使用，且向所述网络侧 反馈数据接收正确；所述多个载波单元中无解调结果正确的数据时，向所述网络侧反馈数据接收错误。
一种基于载波聚合的数据传输装置，所述装置包括：决策单元、选择单元、传输单元和指示单元，其中：
决策单元，设置为决策使用两个以上的载波单元为支持CA的UE发送同样的数据；
选择单元，设置为从所述两个以上的载波单元中选取至少一个载波单元；
传输单元，设置为利用所述至少一个载波单元传输所述同样的数据；
指示单元，设置为向所述UE指示所述至少一个载波单元中发送的是同样的数据。
作为一种实现方式，所述指示单元，还设置为通过下行控制信息DCI向所述UE指示所述至少一个载波单元中发送的是同样的数据；
或者，通过下行控制信息DCI向所述UE指示所述至少一个载波单元中发送的是同样的数据，以及，同样的数据是所述至少一个载波单元中的某个载波单元的数据。
作为一种实现方式，所述指示单元，还设置为通过所述至少一个载波单元中每一个载波单元中的下行控制信息DCI中的相同特定字段向所述UE指示所述至少一个载波单元中发送的是同样的数据；
或者，通过所述至少一个载波单元中每一个载波单元中的下行控制信息DCI中的相同特定字段向所述UE指示所述至少一个载波单元中发送的是同样的数据，以及，所述同样的数据是所述至少一个载波单元中的某个载波单元的数据。
作为一种实现方式，所述特定字段包括载波指示域CIF字段。
作为一种实现方式，所述指示单元，还设置为在所述至少一个载波单元中选取一个载波单元发送多个DCI，以指示所述至少一个载波单元中发 送的是同样的数据；
或者，设置为在所述至少一个载波单元中选取一个载波单元发送多个DCI，以指示所述至少一个载波单元中发送的是同样的数据，以及，所述同样的数据是所述至少一个载波单元中的某个载波单元的数据。
作为一种实现方式，所述指示单元，还设置为所述至少一个载波单元包括两个以上的载波单元时，在所述同样的数据所属的载波单元上发送多个DCI，以指示所述至少一个载波单元中的其他载波单元发送的都是所述同样的数据。
作为一种实现方式，所述指示单元，还设置为通过特定的媒体接入控制的控制单元MAC CE向所述UE指示所述至少一个载波单元中发送的是所述同样的数据；
或者，通过特定的媒体接入控制的控制单元MAC CE向所述UE指示所述至少一个载波单元中发送的是同样的数据，以及，同样的数据是所述至少一个载波单元中的某个载波单元的数据。
作为一种实现方式，所述指示单元，还设置为通过特定的配置信令消息向所述UE指示所述至少一个载波单元中发送的是同样的数据；
或者，通过特定的配置信令消息向所述UE指示所述至少一个载波单元中发送的是同样的数据，以及，同样的数据是所述至少一个载波单元中的某个载波单元的数据。
一种基于载波聚合的数据传输装置，所述装置包括：接收单元和确定单元，其中：
接收单元，设置为接收网络侧发送的指示消息；
确定单元，设置为根据所述指示消息确定聚合载波中的多个载波单元中传输的数据相同。
作为一种实现方式，所述确定单元，还设置为根据所述指示消息判断出是否指示了所述同样的数据是某个载波单元的数据。
作为一种实现方式，所述装置还包括：
解调单元，设置为对所述多个载波单元的数据进行解调，当解调出一个载波单元的数据正确时，不再解调所述多个载波单元中其他载波单元的数据。
作为一种实现方式，所述装置还包括：
选取反馈单元，设置为在所述解调单元解调所述多个载波单元的数据后，只选取所述多个载波单元中的一个解调结果正确的数据使用，且向所述网络侧反馈数据接收正确；所述多个载波单元中无解调结果正确的数据时，向所述网络侧反馈数据接收错误。
本发明另一实施例提供了一种计算机存储介质，所述计算机存储介质存储有执行指令，所述执行指令用于执行上述方法实施例中的步骤之一或其组合。
本发明实施例的技术方案中，当网络侧决策使用两个以上的载波单元为UE发送同样的数据时，从该两个以上的载波单元中选取至少一个载波单元发送同样的数据，并需通过指示消息向UE指示至少一个载波单元发送的是同样的数据，且该相同的数据是所述至少一个载波单元中的某个载波单元的数据。这样，UE在接收到指示消息后，即可确定聚合载波中的多个载波单元中传输的为同样的数据，当解调出一个载波单元的数据正确时，不再解调所述多个载波单元中其他载波单元的数据。采用本发明的技术方案，使得UE能够获得优于CA单个载波单元的传输性能，可用于规避同频干扰，提升小区边缘性能等应用场景。
附图说明
图1为本发明实施例一的基于载波聚合的数据传输方法的流程示意图；
图2为本发明实施例二的基于载波聚合的数据传输方法的流程示意图；
图3为本发明实施例三的基于载波聚合的数据传输装置的组成结构示意图；
图4为本发明实施例三的基于载波聚合的数据传输装置的组成结构示意图。
具体实施方式
为了能够更加详尽地了解本发明实施例的特点与技术内容，下面结合附图对本发明实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本发明实施例。
为克服相关技术中存在的LTE小区边缘弱覆盖和同频干扰带来的下行数据传输可靠性差的问题，本发明实施例提供一种基于载波聚合的数据传输方法，包括：基站决策CA要使用多个载波单元传输同样的数据，且传输的是CA中某个载波单元的数据，基站指示UE，CA多个载波单元中下发的是同样的数据，且可以明确指示是某个特定载波单元的数据。UE根据基站指示判断出CA多个载波单元中收到的是相同的数据，且判断出是否指定了是哪个载波单元的数据。UE解调多个载波单元数据，只选取一个解调结果正确的数据使用，且向基站反馈数据接收正确。若无解调结果正确的数据，则向基站反馈数据接收错误。
以下通过具体示例，进一步阐明本发明实施例的技术方案的实质。
图1为本发明实施例一的基于载波聚合的数据传输方法的流程示意图，如图1所示，本示例的基于载波聚合的数据传输方法包括以下步骤：
步骤101，网络侧决策使用两个以上的载波单元为支持CA的UE发送同样的数据。
本发明实施例中，网络侧可以是网络侧的控制网元如基站、基站控制器、移动管理实体(Mobility Management Entity，简称为MME)等。本发明实施例中以基站为例进行说明，并非是用于限定本发明的保护范围。
当基站决策需要使用多个载波单元为UE发送同样的数据时，需要在 UE的聚合载波中选用一些信道质量较佳的信道进行数据传输，并非选定所有聚合载波进行数据传输，此时，基站所选用的多个载波发送的数据是某个载波上的数据，这些数据均是相同数据。
步骤102，网络侧从所述两个以上的载波单元中选取至少一个载波单元发送所述同样的数据。
本发明实施例中，基站基于UE对载波单元的测量结果等，在为UE所确定的聚合载波单元中选取信道质量更佳的载波单元传输数据。为UE确定出传输数据的载波单元后，需要将相关信息通知UE。
步骤103，网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据。
作为一种实现方式，本发明实施例中，网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据，包括：
基站通过下行控制信息(Downlink Control Information，简称为DCI)向所述UE指示所述至少一个载波单元中发送的是同样的数据；或者，除了指示所述至少一个载波单元中发送的是同样的数据外，还指示同样的数据是所述至少一个载波单元中的某个载波单元的数据。
作为一种实现方式，本发明实施例中，网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据，包括：
基站通过所述至少一个载波单元中每一个载波单元中的DCI中的相同特定字段向所述UE指示所述至少一个载波单元中发送的是同样的数据；或者，除了指示所述至少一个载波单元中发送的是同样的数据外，还指示同样的数据是所述至少一个载波单元中的某个载波单元的数据。所述特定字段包括载波指示域(Carrier Indicator Field，简称为CIF)字段。
作为一种实现方式，本发明实施例中，网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据，包括：
基站在所述至少一个载波单元中选取一个载波单元发送多个DCI，以指示所述至少一个载波单元中发送的是同样的数据；或者，除了指示所述 至少一个载波单元中发送的是同样的数据外，还指示同样的数据是所述至少一个载波单元中的某个载波单元的数据。
作为一种实现方式，本发明实施例中，网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据，包括：
所述至少一个载波单元为两个以上时，基站在所述同样的数据所属的载波单元上发送多个DCI，以指示所述至少一个载波单元中的其他载波单元发送的都是所述同样的数据。
作为一种实现方式，本发明实施例中，网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据，包括：
基站通过特定的媒体接入控制的控制单元MAC CE向所述UE指示所述至少一个载波单元中发送的是同样的数据；或者，除了指示所述至少一个载波单元中发送的是同样的数据外，还指示同样的数据是所述至少一个载波单元中的某个载波单元的数据。
作为一种实现方式，本发明实施例中，网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据，包括：
基站通过特定的配置信令消息向所述UE指示所述至少一个载波单元中发送的是同样的数据；或者，除了指示所述至少一个载波单元中发送的是同样的数据外，还指示同样的数据是所述至少一个载波单元中的某个载波单元的数据。
本发明实施例中，基站也可以采用其他的方式来指示UE，多个载波单元中下发的是同样的数据，且是哪个特定载波单元的数据。
图2为本发明实施例二的基于载波聚合的数据传输方法的流程示意图，如图2所示，本示例的基于载波聚合的数据传输方法包括以下步骤：
步骤201，UE接收网络侧发送的指示消息。
本发明实施例中，网络侧可以是网络侧的控制网元如基站、基站控制器、移动管理实体(Mobility Management Entity，简称为MME)等。本 发明实施例中以基站为例进行说明，并非是用于限定本发明的保护范围。
本发明实施例中，基站向UE发送指示消息，具体可通过下述方式实现。
基站可以通过DCI来指示UE，多个载波单元中下发的是同样的数据，且是哪个特定载波单元的数据。
基站使用DCI中的特定字段，如载波指示符(Carrier Indicator Field，简称为CIF)来指示时，每个下发同样数据的载波单元都有DCI下发给同一个UE，DCI中携带相同的CIF字段来指示是哪个特定载波单元的数据，且表明是同样的数据。
基站使用同一个载波单元下发多个DCI来指示时，可以在数据所属于的载波单元上发送多个DCI，数据所属载波单元的DCI通过某个字段的特殊值来指示出，其它载波单元上传输的也是此载波单元同样的数据。
基站可以通过特定的MAC CE来指示UE，多个载波单元中下发的是同样的数据，且是哪个特定载波单元的数据。在MAC CE中标识出是哪个载波单元的数据等。
基站可以通过特定的配置信令消息来指示UE，多个载波单元中下发的是同样的数据，且是哪个特定载波单元的数据。
基站也可以采用其它的方式来指示UE，多个载波单元中下发的是同样的数据，且是哪个特定载波单元的数据。
基站可以仅指示UE多个载波单元中下发的是相同的数据，不需指示是哪个特定载波单元的数据。
步骤202，UE根据所述指示消息，确定聚合载波中的多个载波单元中传输的数据相同。
UE根据基站的下发的DCI，或者MAC CE，或者配置信令消息，或者其它信息，判断出多个载波单元中传输的是同样的数据，也判断出是否指示了是哪个特定载波单元的数据。
UE解调多个载波单元的数据时，若有一个解调结果正确的数据，其它传输相同数据的载波单元的数据可以不用再解调。
UE解调多个载波单元的数据后，只选取一个解调结果正确的数据使用，且向基站反馈数据接收正确。若无解调结果正确的数据，则向基站反馈数据接收错误。
根据本发明实施例的技术方案，当网络侧决策使用两个以上的载波单元为UE发送同样的数据时，从该两个以上的载波单元中选取至少一个载波单元发送同样的数据，并需通过指示消息向UE指示至少一个载波单元发送的是同样的数据，且该相同的数据是所述至少一个载波单元中的某个载波单元的数据。这样，UE在接收到指示消息后，即可确定聚合载波中的多个载波单元中传输的为同样的数据，当解调出一个载波单元的数据正确时，不再解调所述多个载波单元中其他载波单元的数据。采用本发明实施例中的技术方案，使得UE能够获得优于CA单个载波单元的传输性能，可用于规避同频干扰，提升小区边缘性能等应用场景。
图3为本发明实施例三的基于载波聚合的数据传输装置的组成结构示意图，如图3所示，本示例的基于载波聚合的数据传输装置包括决策单元30、选择单元31、传输单元32和指示单元33，其中：
决策单元30，设置为决策使用两个以上的载波单元为用户设备UE发送同样的数据；
选择单元31，设置为从所述两个以上的载波单元中选取至少一个载波单元；
传输单元32，设置为利用所述至少一个载波单元传输所述同样的数据；
指示单元33，设置为向所述UE指示所述至少一个载波单元中发送的是同样的数据。
指示单元33，还设置为通过下行控制信息DCI向所述UE指示所述至少一个载波单元中发送的是同样的数据；
或者，通过下行控制信息DCI向所述UE指示所述至少一个载波单元中发送的是同样的数据，以及，同样的数据是所述至少一个载波单元中的某个载波单元的数据。
作为一种实现方式，指示单元33，还设置为通过所述至少一个载波单元中每一个载波单元中的下行控制信息DCI中的相同特定字段向所述UE指示所述至少一个载波单元中发送的是同样的数据；
或者，通过所述至少一个载波单元中每一个载波单元中的下行控制信息DCI中的相同特定字段向所述UE指示所述至少一个载波单元中发送的是同样的数据，以及，所述同样的数据是所述至少一个载波单元中的某个载波单元的数据。这里，所述特定字段包括载波指示域CIF字段。
作为一种实现方式，指示单元33，还设置为在所述至少一个载波单元中选取一个载波单元发送多个DCI，以指示所述至少一个载波单元中发送的是同样的数据；
或者，设置为在所述至少一个载波单元中选取一个载波单元发送多个DCI，以指示所述至少一个载波单元中发送的是同样的数据，以及，所述同样的数据是所述至少一个载波单元中的某个载波单元的数据。
作为一种实现方式，指示单元33，设置为在所述同样的数据所属的载波单元上发送多个DCI，以指示所述至少一个载波单元中的其他载波单元发送的都是所述同样的数据。
作为一种实现方式，指示单元33，还设置为通过特定的媒体接入控制的控制单元MAC CE向所述UE指示所述至少一个载波单元中发送的是同样的数据；
或者，通过特定的媒体接入控制的控制单元MAC CE向所述UE指示所述至少一个载波单元中发送的是同样的数据，以及，同样的数据是所述至少一个载波单元中的某个载波单元的数据。
作为一种实现方式，指示单元33，还设置为通过特定的配置信令消息向所述UE指示所述至少一个载波单元中发送的是同样的数据；
或者，通过特定的配置信令消息向所述UE指示所述至少一个载波单元中发送的是同样的数据，以及，同样的数据是所述至少一个载波单元中的某个载波单元的数据。
本发明实施例的技术方案中，当网络侧决策使用两个以上的载波单元为UE发送同样的数据时，从该两个以上的载波单元中选取至少一个载波单元发送同样的数据，并需通过指示消息向UE指示至少一个载波单元发送的是同样的数据，且该相同的数据是所述至少一个载波单元中的某个载波单元的数据。这样，UE在接收到指示消息后，即可确定聚合载波中的多个载波单元中传输的为同样的数据，当解调出一个载波单元的数据正确时，不再解调所述多个载波单元中其他载波单元的数据。采用本发明实施例中的技术方案，使得UE能够获得优于CA单个载波单元的传输性能，可用于规避同频干扰，提升小区边缘性能等应用场景。
本领域技术人员应当理解，上述各单元的实现功能可参照前述各实施例的基于载波聚合的数据传输方法的相关描述而理解。上述各单元的功能可通过运行于处理模块上的程序而实现，也可通过具体的逻辑电路而实现。如上述决策单元30、选择单元31等可通过FPGA、微处理器及DSP实现，传输单元32和指示单元可通过天线系统而实现等。
图4为本发明实施例三的基于载波聚合的数据传输装置的组成结构示意图，如图4所示，本示例的基于载波聚合的数据传输装置包括：接收单元40和确定单元41，其中：
接收单元40，设置为接收网络侧发送的指示消息；
确定单元41，设置为根据所述指示消息判断出聚合载波中的多个载波单元中传输的为同样的数据。
本发明实施例中，网络侧可以是网络侧的控制网元如基站、基站控制器、移动管理实体(Mobility Management Entity，简称为MME)等。本发明实施例中以基站为例进行说明，并非是用于限定本发明的保护范围。
本发明实施例中，基站向UE发送指示消息，具体可通过下述方式实 现。
基站可以通过DCI来指示UE，多个载波单元中下发的是同样的数据，且是哪个特定载波单元的数据。
基站使用DCI中的特定字段，如载波指示符(Carrier Indicator Field，简称为CIF)来指示时，每个下发同样数据的载波单元都有DCI下发给同一个UE，DCI中携带相同的CIF字段来指示是哪个特定载波单元的数据，且表明是同样的数据。
基站使用同一个载波单元下发多个DCI来指示时，可以在数据所属于的载波单元上发送多个DCI，数据所属载波单元的DCI通过某个字段的特殊值来指示出，其它载波单元上传输的也是此载波单元同样的数据。
基站可以通过特定的MAC CE来指示UE，多个载波单元中下发的是同样的数据，且是哪个特定载波单元的数据。在MAC CE中标识出是哪个载波单元的数据等。
基站可以通过特定的配置信令消息来指示UE，多个载波单元中下发的是同样的数据，且是哪个特定载波单元的数据。
基站也可以采用其它的方式来指示UE，多个载波单元中下发的是同样的数据，且是哪个特定载波单元的数据。
基站可以仅指示UE多个载波单元中下发的是相同的数据，不需指示是哪个特定载波单元的数据。
本发明实施例中，所述确定单元41，还设置为根据所述指示消息确定是否指示了所述同样的数据是某个载波单元的数据。
在图4所示的基于载波聚合的数据传输装置的基础上，本示例的基于载波聚合的数据传输装置还包括：
解调单元(图4中未示出)，设置为对所述多个载波单元的数据进行解调，当解调出一个载波单元的数据正确时，不再解调所述多个载波单元中其他载波单元的数据。
在图4所示的基于载波聚合的数据传输装置的基础上，本示例的基于载波聚合的数据传输装置还包括：
选取反馈单元(图4中未示出)，设置为在所述解调单元解调所述多个载波单元的数据后，只选取所述多个载波单元中的一个解调结果正确的数据使用，且向所述网络侧反馈数据接收正确；所述多个载波单元中无解调结果正确的数据时，向所述网络侧反馈数据接收错误。
本领域技术人员应当理解，上述各单元的实现功能可参照前述各实施例的基于载波聚合的数据传输方法的相关描述而理解。上述各单元的功能可通过运行于处理模块上的程序而实现，也可通过具体的逻辑电路而实现。如上述确定单元41等可通过FPGA、微处理器及DSP实现，接收单元40等可通过天线系统而实现等。
采用本发明实施例的技术方案，与相关技术相比，CA的多个载波单元上传输的是相同的数据，UE收到多个载波单元的数据，解调后，从中选择了一个最优的结果。采用本发明实施例中的方案使得UE能够获得优于CA单个载波单元的传输性能，可用于规避同频干扰，提升小区边缘性能等场景。
本发明实施例所记载的技术方案之间，在不冲突的情况下，可以任意组合。
本发明的实施例还提供了一种存储介质。可选地，在本实施例中，上述存储介质中存储有执行指令，该执行指令用于执行上述方法实施例中的步骤之一或其组合。
可选地，在本实施例中，上述存储介质可以包括但不限于：U盘、只读存储器(Read-Only Memory，简称为ROM)、随机存取存储器(Random Access Memory，简称为RAM)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
在本发明所提供的几个实施例中，应该理解到，所揭露的方法和智能设备，可以通过其它的方式实现。以上所描述的设备实施例仅仅是示意性 的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，如：多个单元或组件可以结合，或可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性的、机械的或其它形式的。
上述作为分离部件说明的单元可以是、或也可以不是物理上分开的，作为单元显示的部件可以是、或也可以不是物理单元，即可以位于一个地方，也可以分布到多个网络单元上；可以根据实际的需要选择其中的部分或全部单元来实现本实施例方案的目的。
另外，在本发明各实施例中的各功能单元可以全部集成在一个第二处理单元中，也可以是各单元分别单独作为一个单元，也可以两个或两个以上单元集成在一个单元中；上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。
工业实用性
如上所述，本发明实施例提供的一种基于载波聚合的数据传输方法及装置具有以下有益效果：使得UE能够获得优于CA单个载波单元的传输性能，可用于规避同频干扰，提升小区边缘性能等应用场景。

Claims (24)

  1. 一种基于载波聚合的数据传输方法，所述方法包括：
    网络侧决策使用两个以上的载波单元为支持载波聚合CA的用户设备UE发送同样的数据时，从所述两个以上的载波单元中选取至少一个载波单元传输所述同样的数据；
    所述网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据。
  2. 根据权利要求1所述的基于载波聚合的数据传输方法，其中，所述网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据，包括：
    所述网络侧通过下行控制信息DCI向所述UE指示所述至少一个载波单元中发送的是同样的数据；
    或者，所述网络侧通过下行控制信息DCI向所述UE指示所述至少一个载波单元中发送的是同样的数据，以及，同样的数据是所述至少一个载波单元中的某个载波单元的数据。
  3. 根据权利要求2所述的基于载波聚合的数据传输方法，其中，所述网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据，包括：
    所述网络侧通过所述至少一个载波单元中每一个载波单元中的下行控制信息DCI中的相同特定字段向所述UE指示所述至少一个载波单元中发送的是同样的数据；
    或者，所述网络侧通过所述至少一个载波单元中每一个载波单元中的下行控制信息DCI中的相同特定字段向所述UE指示所述至少一个载波单元中发送的是同样的数据，以及，所述同样的数据是所述至少一个载波单元中的某个载波单元的数据。
  4. 根据权利要求3所述的基于载波聚合的数据传输方法，其中，所述特定字段包括载波指示域CIF字段。
  5. 根据权利要求1所述的基于载波聚合的数据传输方法，其中，所述网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据，包括：
    所述网络侧在所述至少一个载波单元中选取一个载波单元发送多个DCI，以指示所述至少一个载波单元中发送的是同样的数据；
    或者，所述网络侧在所述至少一个载波单元中选取一个载波单元发送多个DCI，以指示所述至少一个载波单元中发送的是同样的数据，以及，所述同样的数据是所述至少一个载波单元中的某个载波单元的数据。
  6. 根据权利要求1所述的基于载波聚合的数据传输方法，其中，所述网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据，包括：
    所述至少一个载波单元包括两个以上的载波单元时，所述网络侧在所述同样的数据所属的载波单元上发送多个DCI，以指示所述至少一个载波单元中的其他载波单元发送的是所述同样的数据。
  7. 根据权利要求1所述的基于载波聚合的数据传输方法，其中，所述网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据，包括：
    所述网络侧通过特定的媒体接入控制的控制单元MAC CE向所述UE指示所述至少一个载波单元中发送的是同样的数据；
    或者，所述网络侧通过特定的媒体接入控制的控制单元MAC CE向所述UE指示所述至少一个载波单元中发送的是同样的数据，以及，同样的数据是所述至少一个载波单元中的某个载波单元的数据。
  8. 根据权利要求1所述的基于载波聚合的数据传输方法，其中，所述网络侧向所述UE指示所述至少一个载波单元中发送的是同样的数据，包括：
    所述网络侧通过特定的配置信令消息向所述UE指示所述至少一 个载波单元中发送的是同样的数据；
    或者，所述网络侧通过特定的配置信令消息向所述UE指示所述至少一个载波单元中发送的是同样的数据，以及，同样的数据是所述至少一个载波单元中的某个载波单元的数据。
  9. 一种基于载波聚合的数据传输方法，所述方法包括：
    用户设备UE接收网络侧发送的指示信息；
    所述UE根据所述指示消息确定聚合载波中的多个载波单元中传输的数据相同。
  10. 根据权利要求9所述的基于载波聚合的数据传输方法，其中，所述方法还包括：
    所述UE根据所述指示消息确定所述同样的数据是所述多个载波单元中的某个载波单元的数据。
  11. 根据权利要求9或10所述的基于载波聚合的数据传输方法，其中，所述UE对所述多个载波单元的数据进行解调，当解调出一个载波单元的数据正确时，不再解调所述多个载波单元中其他载波单元的数据。
  12. 根据权利要求9或10所述的基于载波聚合的数据传输方法，其中，所述UE解调所述多个载波单元的数据后，只选取所述多个载波单元中的一个解调结果正确的数据使用，且向所述网络侧反馈数据接收正确；所述多个载波单元中无解调结果正确的数据时，向所述网络侧反馈数据接收错误。
  13. 一种基于载波聚合的数据传输装置，所述装置包括：决策单元、选择单元、传输单元和指示单元，其中：
    决策单元，设置为决策使用两个以上的载波单元为支持CA的UE发送同样的数据；
    选择单元，设置为从所述两个以上的载波单元中选取至少一个载 波单元；
    传输单元，设置为利用所述至少一个载波单元传输所述同样的数据；
    指示单元，设置为向所述UE指示所述至少一个载波单元中发送的是同样的数据。
  14. 根据权利要求13所述的基于载波聚合的数据传输装置，其中，所述指示单元，还设置为通过下行控制信息DCI向所述UE指示所述至少一个载波单元中发送的是同样的数据；
    或者，通过下行控制信息DCI向所述UE指示所述至少一个载波单元中发送的是同样的数据，以及，同样的数据是所述至少一个载波单元中的某个载波单元的数据。
  15. 根据权利要求14所述的基于载波聚合的数据传输装置，其中，所述指示单元，还设置为通过所述至少一个载波单元中每一个载波单元中的下行控制信息DCI中的相同特定字段向所述UE指示所述至少一个载波单元中发送的是同样的数据；
    或者，通过所述至少一个载波单元中每一个载波单元中的下行控制信息DCI中的相同特定字段向所述UE指示所述至少一个载波单元中发送的是同样的数据，以及，所述同样的数据是所述至少一个载波单元中的某个载波单元的数据。
  16. 根据权利要求15所述的基于载波聚合的数据传输装置，其中，所述特定字段包括载波指示域CIF字段。
  17. 根据权利要求13所述的基于载波聚合的数据传输装置，其中，所述指示单元，还设置为在所述至少一个载波单元中选取一个载波单元发送多个DCI，以指示所述至少一个载波单元中发送的是同样的数据；
    或者，设置为在所述至少一个载波单元中选取一个载波单元发送多个DCI，以指示所述至少一个载波单元中发送的是同样的数据，以 及，所述同样的数据是所述至少一个载波单元中的某个载波单元的数据。
  18. 根据权利要求13所述的基于载波聚合的数据传输方法，其中，所述指示单元，还设置为所述至少一个载波单元包括两个以上的载波单元时，在所述同样的数据所属的载波单元上发送多个DCI，以指示所述至少一个载波单元中的其他载波单元发送的都是所述同样的数据。
  19. 根据权利要求13所述的基于载波聚合的数据传输装置，其中，所述指示单元，还设置为通过特定的媒体接入控制的控制单元MACCE向所述UE指示所述至少一个载波单元中发送的是所述同样的数据；
    或者，通过特定的媒体接入控制的控制单元MAC CE向所述UE指示所述至少一个载波单元中发送的是同样的数据，以及，同样的数据是所述至少一个载波单元中的某个载波单元的数据。
  20. 根据权利要求13所述的基于载波聚合的数据传输装置，其中，所述指示单元，还设置为通过特定的配置信令消息向所述UE指示所述至少一个载波单元中发送的是同样的数据；
    或者，通过特定的配置信令消息向所述UE指示所述至少一个载波单元中发送的是同样的数据，以及，同样的数据是所述至少一个载波单元中的某个载波单元的数据。
  21. 一种基于载波聚合的数据传输装置，所述装置包括：接收单元和确定单元，其中：
    接收单元，设置为接收网络侧发送的指示消息；
    确定单元，设置为根据所述指示消息确定聚合载波中的多个载波单元中传输的数据相同。
  22. 根据权利要求21所述的基于载波聚合的数据传输装置，其中，所述确定单元，还设置为根据所述指示消息判断出是否指示了所述同 样的数据是某个载波单元的数据。
  23. 根据权利要求21或22所述的基于载波聚合的数据传输装置，其中，所述装置还包括：
    解调单元，设置为对所述多个载波单元的数据进行解调，当解调出一个载波单元的数据正确时，不再解调所述多个载波单元中其他载波单元的数据。
  24. 根据权利要求23所述的基于载波聚合的数据传输装置，其中，所述装置还包括：
    选取反馈单元，设置为在所述解调单元解调所述多个载波单元的数据后，只选取所述多个载波单元中的一个解调结果正确的数据使用，且向所述网络侧反馈数据接收正确；所述多个载波单元中无解调结果正确的数据时，向所述网络侧反馈数据接收错误。
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101801094A (zh) * 2009-02-10 2010-08-11 大唐移动通信设备有限公司 长期演进多载波系统中的子帧绑定传输方法、系统和设备
CN101998649A (zh) * 2009-08-06 2011-03-30 宏达国际电子股份有限公司 处理资源指派的方法及其相关通讯装置
CN102958151A (zh) * 2011-08-15 2013-03-06 财团法人工业技术研究院 载波聚合的无线网络系统与基站、通信装置及同步方法
WO2013115309A1 (ja) * 2012-02-03 2013-08-08 株式会社エヌ・ティ・ティ・ドコモ 移動通信方法、無線基地局及び移動局

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010095992A1 (en) * 2009-02-20 2010-08-26 Telefonaktiebolaget L M Ericsson (Publ) A multicarrier transmission method and apparatus
US9225482B2 (en) * 2011-10-17 2015-12-29 Golba Llc Method and system for MIMO transmission in a distributed transceiver network
US9253785B2 (en) * 2012-05-04 2016-02-02 Broadcom Corporation Multi-cell incremental redundancy
EP3018853B1 (en) * 2013-08-01 2019-10-30 Huawei Technologies Co., Ltd. Method and device for configuring data transmission resource

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101801094A (zh) * 2009-02-10 2010-08-11 大唐移动通信设备有限公司 长期演进多载波系统中的子帧绑定传输方法、系统和设备
CN101998649A (zh) * 2009-08-06 2011-03-30 宏达国际电子股份有限公司 处理资源指派的方法及其相关通讯装置
CN102958151A (zh) * 2011-08-15 2013-03-06 财团法人工业技术研究院 载波聚合的无线网络系统与基站、通信装置及同步方法
WO2013115309A1 (ja) * 2012-02-03 2013-08-08 株式会社エヌ・ティ・ティ・ドコモ 移動通信方法、無線基地局及び移動局

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