WO2017214771A1 - 下行数据传输方法和装置 - Google Patents

下行数据传输方法和装置 Download PDF

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Publication number
WO2017214771A1
WO2017214771A1 PCT/CN2016/085470 CN2016085470W WO2017214771A1 WO 2017214771 A1 WO2017214771 A1 WO 2017214771A1 CN 2016085470 W CN2016085470 W CN 2016085470W WO 2017214771 A1 WO2017214771 A1 WO 2017214771A1
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Prior art keywords
terminal device
combination
spectrum width
maximum
band
Prior art date
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PCT/CN2016/085470
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English (en)
French (fr)
Inventor
单惠平
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201680084704.9A priority Critical patent/CN109075927B/zh
Priority to PCT/CN2016/085470 priority patent/WO2017214771A1/zh
Priority to EP16904890.7A priority patent/EP3451570B1/en
Priority to US16/308,963 priority patent/US10952066B2/en
Publication of WO2017214771A1 publication Critical patent/WO2017214771A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • 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
    • H04L5/0058—Allocation criteria
    • 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
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • the embodiments of the present invention relate to communication technologies, and in particular, to a downlink data transmission method and apparatus.
  • LAA-LTE Licensed-Assisted Access Using Long Term Evolution
  • CA carrier aggregation
  • the network carrier aggregation (Carrier Aggregation, CA for short) is determined according to the type of carrier aggregation (CA). Which type of CA combination can be supported by the terminal device, so that the network device can select the CA combination corresponding to the CA combination type to send downlink data to the terminal device according to the CA combination type supported by the terminal device, so as to improve the downlink data transmission rate.
  • the type of the CA combination mentioned above may be, for example, a CA combination type including two component carriers (Component Carriers, CC for short), a CA combination type including three CCs in a frequency band, and three CCs between frequency bands. The type of CA combination, etc.
  • the network device selects the CA combination to transmit downlink data to the terminal device according to the CA combination type supported by the terminal device reported by the terminal device, the spectrum utilization rate of the unlicensed frequency band is low, and the downlink throughput of the terminal device is low.
  • the embodiment of the present invention provides a downlink data transmission method and device, which is used to solve the problem that the network device in the prior art transmits the downlink data to the terminal device according to the CA combination type supported by the terminal device supported by the terminal device, and is not licensed.
  • an embodiment of the present invention provides a downlink data transmission method, where the method includes:
  • the network device receives the carrier aggregation CA capability indication information sent by the terminal device; the CA can The force indication information is used to indicate to the network device that the terminal device supports a first type of in-band non-contiguous carrier aggregation Intra-band NC CA combination in a first frequency band, and a maximum downlink spectrum width supported by the terminal device;
  • a first CA combination from at least one first type of Intra-band NC CA combination of the first frequency band according to the CA capability indication information, where the first CA combination includes at least two component carriers CC;
  • the network device sends downlink data to the terminal device by using the first CA combination.
  • the terminal device when the first frequency band is an unlicensed frequency band (ie, B46), the terminal device enables the terminal device to support only a partial CA combination in the first type of Intra-band NC CA combination.
  • the device can still report to the network device that the first type of Intra-band NC CA combination is supported by the B46, and the maximum downlink spectrum width that can be supported by the user can be carried in the CA capability indication information and sent to the network device, so that the network device receives
  • the first CA combination matching the maximum downlink spectrum width supported by the terminal device may be selected from the plurality of first type CA combinations of the B46 when the downlink data can be sent to the terminal device by using the B46.
  • the downlink data is sent to the terminal device, so that the terminal device can correctly receive and parse the downlink data, improve the spectrum utilization rate of the unlicensed band (ie, B46), and improve the downlink throughput of the terminal device.
  • the network device determines, according to the CA capability indication information, from at least one first type of Intra-band NC CA combination in the first frequency band.
  • a CA combination specifically including:
  • the network device determines the first CA combination according to the maximum occupied spectrum width and a maximum downlink spectrum width supported by the terminal device.
  • the network device determines, according to the maximum occupied spectrum width and a maximum downlink spectrum width supported by the terminal device, the first CA combination, specifically including :
  • the network device determines the first CA combination according to the at least one second available CA combination; the at least one second available CA combination includes the first CA combination.
  • the downlink data transmission method provided by the possible implementation manner after the network device receives the CA capability indication information sent by the terminal device, may be configured according to each first type of Intra-band NC CA combination of the first frequency band configured by itself. Determining the maximum occupied spectrum width, so that the maximum downlink spectrum width supported by the terminal device can be selected from the plurality of first type CA combinations in the first frequency band according to the maximum occupied spectrum width and the maximum downlink spectrum width supported by the terminal device.
  • the matched first CA combination sends the downlink data to the terminal device, so that the terminal device can correctly receive and parse the downlink data, improve the spectrum utilization rate of the first frequency band, and improve the downlink throughput of the terminal device.
  • the network device determines, according to the maximum occupied spectrum width and a maximum downlink spectrum width supported by the terminal device, the first CA combination, specifically including :
  • the network device determines the first CA combination from the at least one first type of Intra-band NC CA combination.
  • the downlink data transmission method provided by the possible implementation manner after the network device receives the CA capability indication information sent by the terminal device, may be configured according to each first type of Intra-band NC CA combination of the first frequency band configured by itself. Determining the maximum occupied spectrum width, so that the maximum downlink spectrum width supported by the terminal device can be selected from the plurality of first type CA combinations in the first frequency band according to the maximum occupied spectrum width and the maximum downlink spectrum width supported by the terminal device.
  • the matched first CA combination sends the downlink data to the terminal device, so that the terminal device can correctly receive and parse the downlink data, improve the spectrum utilization rate of the first frequency band, and improve the downlink throughput of the terminal device.
  • the network device receiving terminal The CA capability indication information sent by the device, including:
  • the network device receives the terminal device capability information sent by the terminal device; the terminal device capability information includes the CA capability indication information.
  • an embodiment of the present invention provides a downlink data transmission method, where the method includes:
  • the terminal device sends carrier aggregation CA capability indication information to the network device, where the CA capability indication information is used to indicate to the network device that the terminal device supports the first type of in-band discontinuous carrier aggregation Intra-band NC in the first frequency band.
  • the CA combination, and the maximum downlink spectrum width supported by the terminal device are used to indicate to the network device that the terminal device supports the first type of in-band discontinuous carrier aggregation Intra-band NC in the first frequency band.
  • the method before the terminal device sends the carrier aggregation CA capability indication information to the network device, the method further includes:
  • the terminal device acquires a maximum downlink spectrum width supported by the terminal device.
  • the acquiring, by the terminal device, the maximum downlink spectrum width supported by the terminal device includes:
  • the terminal device determines a maximum downlink spectrum width supported by the terminal device according to performance of the low noise amplifier LNA of the terminal device.
  • the terminal device sends the carrier aggregation CA capability indication information to the network device, specifically:
  • the terminal device sends terminal device capability information to the network device; the terminal device capability information includes the CA capability indication information.
  • an embodiment of the present invention provides a downlink data transmission apparatus, where the apparatus includes:
  • a receiving module configured to receive carrier aggregation CA capability indication information sent by the terminal device, where the CA capability indication information is used to indicate to the network device that the terminal device supports the first type of inband non-contiguous carrier aggregation Intra- in the first frequency band Band NC CA combination, and the maximum downlink spectrum width supported by the terminal device;
  • a determining module configured to determine, according to the CA capability indication information received by the receiving module, a first CA combination from at least one first type of Intra-band NC CA combination of the first frequency band, where the first The CA combination includes at least two component carriers CC;
  • a sending module configured to send downlink data to the terminal device by using the first CA combination determined by the determining module.
  • the determining module is specifically configured to determine a maximum occupied spectrum width according to a spectrum width occupied by each of the first type of Intra-band NC CA combinations, And determining, according to the maximum occupied spectrum width and a maximum downlink spectrum width supported by the terminal device, the first CA combination.
  • the determining module is configured to determine the first CA combination according to the maximum occupied spectrum width and a maximum downlink spectrum width supported by the terminal device. ,Specifically:
  • the determining module is configured to determine, according to the maximum occupied spectrum width and a maximum downlink spectrum width supported by the terminal device, that a maximum downlink spectrum width supported by the terminal device is smaller than the maximum occupied spectrum width, and Determining, in the at least one first type of Intra-band NC CA combination of the first frequency band, at least one second available CA combination having a spectral width less than or equal to the maximum downlink spectral width, determined according to the at least one second available CA combination The first CA combination; the at least one second available CA combination includes the first CA combination.
  • the determining module is configured to determine the first CA combination according to the maximum occupied spectrum width and a maximum downlink spectrum width supported by the terminal device. ,Specifically:
  • the determining module is configured to determine, according to the maximum occupied spectrum width and a maximum downlink spectrum width supported by the terminal device, that a maximum downlink spectrum width supported by the terminal device is greater than or equal to the maximum occupied spectrum width, and
  • the first CA combination is determined in the at least one first type of Intra-band NC CA combination.
  • the receiving module is configured to receive terminal device capability information that is sent by the terminal device, where the terminal device capability information includes the CA capability indication information. .
  • an embodiment of the present invention provides a downlink data transmission apparatus, where the apparatus includes:
  • a sending module configured to send carrier aggregation CA capability indication information to the network device;
  • the capability indication information is used to indicate to the network device that the terminal device supports a first type of in-band non-contiguous carrier aggregation Intra-band NC CA combination in a first frequency band, and a maximum downlink spectrum width supported by the terminal device.
  • the device further includes:
  • an obtaining module configured to obtain a maximum downlink spectrum width supported by the terminal device before the sending module sends the carrier aggregation CA capability indication information to the network device.
  • the acquiring module is specifically configured to determine, according to performance of the low noise amplifier LNA of the terminal device, a maximum downlink spectrum width supported by the terminal device.
  • the sending module is configured to send the terminal device capability information to the network device, where the terminal device capability information includes the CA capability indication information.
  • an embodiment of the present invention provides a downlink data transmission apparatus, where the apparatus includes:
  • a receiver configured to receive carrier aggregation CA capability indication information sent by the terminal device, where the CA capability indication information is used to indicate to the network device that the terminal device supports the first type of inband non-contiguous carrier aggregation Intra- in the first frequency band.
  • Band NC CA combination and the maximum downlink spectrum width supported by the terminal device;
  • a processor configured to determine, according to the CA capability indication information received by the receiver, a first CA combination from at least one first type of Intra-band NC CA combination of the first frequency band, where the first The CA combination includes at least two component carriers CC;
  • a transmitter configured to send downlink data to the terminal device by using the first CA combination determined by the processor.
  • the processor is configured to determine a maximum occupied spectrum width according to a spectrum width occupied by each of the first type of Intra-band NC CA combinations, And determining, according to the maximum occupied spectrum width and a maximum downlink spectrum width supported by the terminal device, the first CA combination.
  • the processor is configured to Determining the first CA combination by using the maximum occupied spectrum width and the maximum downlink spectrum width supported by the terminal device, specifically:
  • the processor is configured to determine, according to the maximum occupied spectrum width and a maximum downlink spectrum width supported by the terminal device, that a maximum downlink spectrum width supported by the terminal device is smaller than the maximum occupied spectrum width, and Determining, in the at least one first type of Intra-band NC CA combination of the first frequency band, at least one second available CA combination having a spectral width less than or equal to the maximum downlink spectral width, determined according to the at least one second available CA combination The first CA combination; the at least one second available CA combination includes the first CA combination.
  • the processor is configured to determine the first CA combination according to the maximum occupied spectrum width and a maximum downlink spectrum width supported by the terminal device. ,Specifically:
  • the processor is configured to determine, according to the maximum occupied spectrum width and a maximum downlink spectrum width supported by the terminal device, that a maximum downlink spectrum width supported by the terminal device is greater than or equal to the maximum occupied spectrum width, and
  • the first CA combination is determined in the at least one first type of Intra-band NC CA combination.
  • the receiver is configured to receive terminal device capability information that is sent by the terminal device, where the terminal device capability information includes the CA capability indication information. .
  • an embodiment of the present invention provides a downlink data transmission apparatus, where the apparatus includes:
  • a transmitter configured to send carrier aggregation CA capability indication information to the network device, where the CA capability indication information is used to indicate to the network device that the terminal device supports the first type of inband non-contiguous carrier aggregation Intra in the first frequency band -band NC CA combination, and the maximum downlink spectrum width supported by the terminal device.
  • the device further includes:
  • a processor configured to acquire a maximum downlink spectrum width supported by the terminal device before the transmitter sends the carrier aggregation CA capability indication information to the network device.
  • the processor is specifically used to Determining a maximum downlink spectrum width supported by the terminal device according to a performance of the low noise amplifier LNA of the terminal device.
  • the transmitter is configured to send terminal device capability information to the network device, where the terminal device capability information includes the CA capability indication information.
  • the first frequency band is an authorized spectrum auxiliary access LAA frequency band.
  • the embodiment of the present invention provides a downlink data transmission method and apparatus.
  • the terminal device supports only a partial CA combination in the first type of Intra-band NC CA combination in the B46.
  • the device can still report to the network device that the B46 supports the first type of Intra-band NC CA combination, and can carry the maximum downlink spectrum width that can be supported by the CA to the network device, so that the network device is enabled.
  • the first CA that matches the maximum downlink spectrum width supported by the terminal device may be selected from the plurality of first type CA combinations of the B46 when the downlink data can be sent to the terminal device by using the B46.
  • the combination sends the downlink data to the terminal device, so that the terminal device can correctly receive and parse the downlink data, improve the spectrum utilization ratio of the unlicensed band (ie, B46), and improve the downlink throughput of the terminal device.
  • FIG. 1 is a schematic diagram of a radio frequency module of a terminal device according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of a spectrum width of a B46 Intra-band NC CA combination A according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a spectrum width of a B46 Intra-band NC CA combination B according to an embodiment of the present invention
  • Embodiment 4 is a schematic flowchart of Embodiment 1 of a downlink data transmission method according to an embodiment of the present disclosure
  • FIG. 5 is a schematic flowchart of Embodiment 2 of a downlink data transmission method according to an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart of Embodiment 3 of a downlink data transmission method according to an embodiment of the present disclosure
  • FIG. 7 is a schematic flowchart of Embodiment 4 of a downlink data transmission method according to an embodiment of the present disclosure
  • FIG. 8 is a schematic structural diagram of Embodiment 1 of a downlink data transmission apparatus according to an embodiment of the present disclosure
  • FIG. 9 is a schematic structural diagram of Embodiment 2 of a downlink data transmission apparatus according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of Embodiment 3 of a downlink data transmission apparatus according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of Embodiment 4 of a downlink data transmission apparatus according to an embodiment of the present disclosure.
  • FIG. 12 is a block diagram showing a partial structure of a terminal device when the terminal device is a mobile phone according to an embodiment of the present invention.
  • first, second, third, etc. may be used to describe CA combinations in embodiments of the invention, these CA combinations should not be limited to these terms. These terms are only used to distinguish different CA combinations from one another.
  • the first CA combination may also be referred to as a second CA combination without departing from the scope of the embodiments of the present invention.
  • the second CA combination may also be referred to as a first CA combination.
  • the terminal device may provide voice and/or data connectivity to the user.
  • the wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal.
  • RAN Radio Access Network
  • RAN can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal.
  • it may be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with a wireless access network.
  • a wireless terminal may also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, or an access point.
  • Remote Terminal Access Terminal, User Terminal, User Agent, User Device, or User Equipment. ”
  • the network device involved in the embodiments of the present invention may be a base station, or an access point, or may refer to a device in the access network that communicates with the wireless terminal through one or more sectors on the air interface.
  • the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station (eNB or e-NodeB, evolutional Node B) in LTE. This application is not limited.
  • the downlink data transmission method provided by the embodiment of the present invention can be applied to a Long Term Evolution (LTE) system, or a Long Term Evolution (License-Assisted Access using Long Term Evolution, LAA-
  • LTE Long Term Evolution
  • LAA Long Term Evolution
  • the LTE system reports the terminal device of the Intra-band Non-contiguous Carrier Aggregation (Intra-band NC CA) CA combination type to the network device, and the terminal reported by the terminal device
  • the Intra-band NC CA combination type supported by the device selects a network device that sends downlink data to the terminal device in combination with the Intra-band NC CA corresponding to the type.
  • the terminal device in the LAA-LTE system can report its supported B46 Intra-band NC CACA combination type to the network device, to indicate to the network device whether the terminal device supports the CA combination corresponding to the combination type, thereby
  • the network device determines whether the terminal device supports the B46 Intra-band NC CA combination of the type, and determines that the terminal device supports the type.
  • the B46 Intra-band NC CA is combined, the working mode of the B46 Intra-band NC CA of this type is configured for the terminal device, and the downlink data is transmitted to the terminal device by using the B46 Intra-band NC CA combination of the type.
  • FIG. 1 A schematic diagram of a radio module of a terminal device, as shown in FIG. 1 , an RF module of an existing terminal device includes an LNA and at least one Local Oscillator (LO): for example, LO1 and LO2 shown in FIG. At least one digital-to-digital converter (ADC), wherein the LNA can amplify the wireless signal received by the radio frequency module.
  • LNA Low Noise Amplifier
  • the LNA on it can only process high frequency signals with a certain spectral width (for example: 200-300 MHz) (ie, wireless signals greater than 2 GHz), and the LNA cannot handle more than it can handle.
  • High frequency signals in the spectral width range make it impossible for the terminal device to correctly receive and parse high frequency signals beyond the range of spectral widths that it can handle.
  • FIG. 2 is a schematic diagram of a spectrum width of a B46 Intra-band NC CA combination A according to an embodiment of the present invention. As shown in FIG. 2, it is assumed that a B46 Intra-band NC CA combination type supported by a terminal device includes two in a frequency band.
  • FIG. 3 is a schematic diagram of a spectrum width of a B46 Intra-band NC CA combination B according to an embodiment of the present invention. As shown in FIG. 3, if another CA combination B corresponding to the foregoing type includes CC1 and CC2, the CA combination B occupies Spectrum width It is: the starting point of the spectrum occupied by CC1 to the end of the spectrum occupied by CC2.
  • the terminal device Only the B46Intra-band NC CA combination that does not support this type is sent, so that the network device cannot send downlink data to the terminal device by using a CA combination smaller than the spectrum width that the LNA of the terminal device can handle (for example, the above-mentioned CA combination B).
  • the spectrum utilization of the unlicensed band (ie, Band46) is lower, and the downlink throughput of the terminal device is lower.
  • the spectrum width of the wireless signal that can be processed by the LNA of the terminal device is smaller than the spectrum width occupied by the CA combination A, but larger than the spectrum width occupied by the CA combination B.
  • the terminal device reports the CA capability indication information “supporting the B46 Intra-band NC CA combination of the type and the maximum downlink spectrum width that can be supported” to the network device, so that the network device receives the CA.
  • the capability indication information is used, when the downlink data can be sent to the terminal device by using the B46, according to the maximum downlink spectrum width that the terminal device can support, in the multiple CA combinations corresponding to the B46 Intra-band NC CA combination type supported by the terminal device.
  • the CA combination that matches the maximum downlink spectrum width that the terminal device can support is selected to send downlink data to the terminal device, which improves the spectrum utilization of the unlicensed band (ie, Band 46) and improves the downlink throughput of the terminal device. Therefore, the downlink data transmission method according to the embodiment of the present invention is intended to solve the problem that the network device in the prior art transmits the downlink data to the terminal device when the CA device selects the CA combination supported by the terminal device according to the terminal device.
  • the technical problem of low frequency spectrum utilization of the frequency band and low downlink throughput of the terminal equipment is intended to solve the problem that the network device in the prior art transmits the downlink data to the terminal device when the CA device selects the CA combination supported by the terminal device according to the terminal device.
  • FIG. 4 is a schematic flowchart diagram of Embodiment 1 of a downlink data transmission method according to an embodiment of the present invention.
  • the embodiment relates to a specific process of determining, by the network device, the second CA combination from the at least one first Intra-band NC CA combination in the first frequency band according to the CA capability indication information sent by the terminal device.
  • the method includes:
  • the terminal device sends the CA capability indication information to the network device.
  • the foregoing terminal device may perform radio resource control (Radio) The resource control, referred to as RRC) access procedure, or after receiving the request message sent by the network device to report the CA capability, sends the CA capability indication information to the network device.
  • RRC radio resource control
  • the terminal device may carry the CA capability indication information in any RRC signaling (the RRC signaling may be, for example, the terminal device capability.
  • the information that is, User Equipment Capability Information, is sent to the network device, and the CA capability indication information may also be separately sent to the network device.
  • the foregoing CA capability indication information includes not only indication information indicating that the terminal device supports the first type of Intra-band NC CA combination in the first frequency band, but also indication information indicating a maximum downlink spectrum width supported by the terminal device, that is, The indication information indicating the maximum spectrum width occupied by the wireless signal that the terminal device can receive is included.
  • the first frequency band mentioned above may be the frequency band used by the communication system where the terminal device is located. Taking the LAA-LTE system as an example, the first frequency band may be Band 39, Band 40, Band 41, and LAA frequency band. (ie Band46) and any of the frequency bands.
  • the first type mentioned above may specifically be any one of the Intra-band NC CA combination types included in the first frequency band, and is used to characterize the number of CCs included in the CA combination that the terminal device can support.
  • the foregoing CA capability indication information indicates to the network device that the terminal device supports the first type of Intra-band NC CA in the first frequency band.
  • the embodiment of the present invention does not limit how the foregoing CA capability indication information indicates to the network device the maximum downlink spectrum width supported by the terminal device.
  • the foregoing CA capability indication information may indicate, by using a field, the maximum downlink spectrum width supported by the terminal device to the network device, where the field may correspond to multiple bit numbers, where the binary number formed by the multiple number of bits may be One-to-one correspondence with the maximum downlink spectrum width supported by the terminal device.
  • the foregoing field may also correspond to a number of bits, where, for example, when the number of bits is 1, the maximum downlink spectrum width supported by the terminal device is equal to half of the spectrum width of the first frequency band, and the number of bits is used.
  • the value is 0, it indicates that the maximum downlink spectrum width supported by the terminal device is equal to the entire spectrum width of the first frequency band.
  • the number of bits is 0, it indicates that the maximum downlink spectrum width supported by the terminal device is equal to the first frequency band.
  • Half of the spectrum width when the number of bits is 1, indicates that the maximum downlink spectrum width supported by the terminal device is equal to the entire spectrum width of the first frequency band.
  • the number of bits corresponding to the above field may be selected according to the needs of the user, and the number of bits corresponding to the above field represents The meaning of the present invention will not be described again.
  • the network device receives the CA capability indication information.
  • the network device determines, according to the CA capability indication information, a first CA combination from at least one first type of Intra-band NC CA combination of the first frequency band.
  • the first carrier combination includes at least two CCs.
  • the network device receives the CA capability indication information sent by the terminal device, it is satisfied that the Listen-Before-Talk (referred to as: In the LBT) condition, the first CA matching the maximum downlink spectrum width supported by the terminal device may be determined in the at least one first type of Intra-band NC CA combination in the first frequency band configured according to the CA capability indication information. combination.
  • the Listen-Before-Talk referred to as: In the LBT
  • the network device may use any combination of the first type of CA that occupyes a spectrum width less than or equal to a maximum downlink spectrum width supported by the terminal device as the first CA combination, so that the network device passes the first CA combination to the terminal.
  • the terminal device can correctly receive and parse the downlink data.
  • the network device sends downlink data to the terminal device by using the first CA combination.
  • the embodiment of the present invention provides a downlink data transmission method.
  • the terminal device When the first frequency band is an unlicensed frequency band (ie, B46), the terminal device enables the terminal device to support only a partial CA combination in the first type of Intra-band NC CA combination.
  • the device can still report to the network device that the first type of Intra-band NC CA is supported by the B46, and the maximum downlink bandwidth that can be supported by the B46 can be carried in the CA capability indication information to be sent to the network device, so that the network device receives the network device.
  • the CA capability indication information when the downlink data can be sent to the terminal device by using the B46, the first CA combination direction matching the maximum downlink spectrum width supported by the terminal device is selected from the plurality of first type CA combinations of the B46.
  • the terminal device sends the downlink data, so that the terminal device can correctly receive and parse the downlink data, improve the spectrum utilization rate of the unlicensed band (ie, B46), and improve the downlink throughput of the terminal
  • the CA capability indication information of the terminal device may carry the indication to the network device that the terminal device supports the first type of Intra-band NC CA combination in the first frequency band, and the maximum downlink spectrum width supported by the terminal device.
  • Indication information further, in the above embodiment
  • the method may further include: acquiring, by the terminal device, a maximum downlink spectrum width supported by the terminal device.
  • the embodiment of the present invention does not limit how the terminal device obtains the maximum downlink spectrum width supported by the terminal device.
  • the terminal device can determine the maximum downlink spectrum width supported by the terminal device according to the performance of the LNA of the terminal device, that is, the LNA
  • the spectral width of the wireless signal that can be processed is the maximum downstream spectral width supported by the terminal device.
  • the maximum downlink spectrum width supported by the terminal device may be a maximum downlink spectrum width preset in the terminal device. In this case, the terminal device may directly obtain the maximum downlink spectrum width stored by the terminal device.
  • FIG. 5 is a schematic flowchart diagram of Embodiment 2 of a downlink data transmission method according to an embodiment of the present invention.
  • the embodiment relates to how the network device determines, according to the CA capability indication information, the first CA from at least one first type of Intra-band NC CA combination in the first frequency band after acquiring the CA capability indication information sent by the terminal device.
  • the specific process of the combination is based on the foregoing embodiment.
  • the foregoing S403 may include:
  • the network device determines a maximum occupied spectrum width according to a spectrum width occupied by each first type of Intra-band NC CA combination.
  • the number of the first type of Intra-band NC CAs configured by the different network devices in the first frequency band may be different, and each The spectrum width occupied by the CA combination may also be different. Therefore, after the network device acquires the CA capability indication information sent by the terminal device, when the LBT condition is met, the network device may according to each first type of Intra configured for the network device.
  • the width of the spectrum occupied by the NC CA combination determines the maximum occupied spectrum width, ie determines which of the first type of Intra-band NC CA combinations occupy the largest spectral width.
  • the Intra-band NC CA combination of the first type configured by the network device on the first frequency band is assumed to be: CA combination 1 (CC1 and CC6), CA combination 2 ( CC2 and CC5), CA combination 3 (CC2 and CC3), CA combination 4 (CC1 and CC5), CA combination 5 (CC1 and CC2), CA combination 6 (CC5 and CC6), where the spectrum occupied by CA combination 1 If the width is greater than the spectrum width occupied by CA combination 2, CA combination 3, CA combination 4, CA combination 5, and CA combination 6, the network device can determine the spectrum width occupied by CA combination 1 as the maximum occupied spectrum width.
  • the network device is configured according to a maximum occupied spectrum width and a maximum downlink spectrum supported by the terminal device. Width, determine the first CA combination.
  • the network device may according to the maximum occupied spectrum width and the maximum downlink spectrum supported by the terminal device. Width, determine the first CA combination, which can be divided into the following two cases:
  • the maximum downlink spectrum width supported by the terminal device is less than the maximum occupied spectrum width.
  • FIG. 6 is a schematic flowchart of Embodiment 3 of a downlink data transmission method according to an embodiment of the present invention. As shown in FIG. 6, the foregoing S502 may include:
  • the network device determines, according to the maximum occupied spectrum width and the maximum downlink spectrum width supported by the terminal device, that the maximum downlink spectrum width supported by the terminal device is less than the maximum occupied spectrum width.
  • the network device may compare the specific value of the maximum occupied spectrum width with the specific value of the maximum downlink spectrum width supported by the terminal device to determine whether the maximum downlink spectrum width supported by the terminal device is less than the maximum occupied spectrum width.
  • the network device determines, from at least one first type of Intra-band NC CA combination of the first frequency band, at least one second available CA combination whose spectrum width is less than or equal to a maximum downlink spectrum width.
  • the network device may set the spectrum width of the at least one first type of Intra-band NC CA combination of the first frequency band configured for the network device to be smaller than Or at least one currently available CA combination equal to the maximum downlink spectral width as the second CA combination.
  • the available CA combinations mentioned here are CA combinations that can currently be used by network devices.
  • the spectrum width occupied by CA combination 1 and CA combination 4 in the first type of Intra-band NC CA combination configured by the network device is larger than the maximum downlink spectrum width of the terminal device, and is occupied by CA combination 2
  • the maximum spectrum width is equal to the maximum downlink spectrum width of the terminal device.
  • the CA combination 3, the CA combination 5, and the CA combination 6 are smaller than the maximum downlink spectrum width of the terminal device, and the network device is using the CA combination 6 to send downlink data to other terminal devices, then the network The device determines at least one second available CA combination whose spectrum width is less than or equal to the maximum downlink spectrum width.
  • the network device may use the CA combination 2, the CA combination 3, and the CA combination 5 whose spectrum width is less than or equal to the maximum downlink spectrum width.
  • the second available CA combination may be used the CA combination 2, the CA combination 3, and the CA combination 5 whose spectrum width is less than or equal to the maximum downlink spectrum width.
  • the network device determines, according to the at least one second available CA combination, the first CA combination. Wherein the at least one second available CA combination comprises a first CA combination.
  • the second available CA combination is the first CA combination, that is, the network device.
  • the downlink data can be directly sent to the terminal device by using the first CA combination, so that the terminal device can correctly receive and parse the downlink data, improve the spectrum utilization rate of the first frequency band, and improve the downlink throughput of the terminal device.
  • the network device may randomly select a second one of the plurality of second available CA combinations
  • the CA combination can be used as the first CA combination
  • the first CA combination adapted to the downlink data volume to be sent can be determined from the plurality of second available CA combinations according to the downlink data amount to be sent by the network device to the terminal device.
  • the network device sends the downlink data to the terminal device by using the first CA combination, not only the spectrum utilization rate of the first frequency band can be improved, but also the resource bandwidth of the system is saved. For the foregoing, how to determine the first CA combination that is to be sent according to the amount of the downlink data to be sent by the network device to the terminal device, which can be referred to the prior art, and details are not described herein again.
  • Case 2 The maximum downlink spectrum width supported by the terminal device is greater than or equal to the maximum occupied spectrum width.
  • FIG. 7 is a schematic flowchart of Embodiment 4 of a downlink data transmission method according to an embodiment of the present invention. As shown in FIG. 7, the foregoing S502 may include:
  • the network device determines, according to the maximum occupied spectrum width and the maximum downlink spectrum width supported by the terminal device, that the maximum downlink spectrum width supported by the terminal device is greater than or equal to the maximum occupied spectrum width.
  • the network device determines the first CA combination from the at least one first type of Intra-band NC CA combination.
  • the network device may select at least one first type of Intra-band NC CA combination in the first frequency band configured for the network device. Any available CA combination is used as the first CA combination.
  • the network device determines the first CA combination from the at least one Intra-band NC CA combination, where the network device determines that the maximum downlink spectrum width supported by the terminal device is greater than or equal to the maximum occupied spectrum width.
  • the above network device may use any combination of CA combination 1, CA combination 2, CA combination 3, CA combination 4, and CA combination 5 as the first CA. combination.
  • the network device may further determine at least one currently available CA combination (ie, a third available CA combination) in the at least one first type of Intra-band NC CA combination, thereby enabling The network device may determine, according to the amount of downlink data to be sent by the network device to the terminal device, a first CA combination that is adapted to the amount of downlink data to be sent, in the at least one third available CA combination, so that the network device is using the first When the CA combination sends downlink data to the terminal device, not only the spectrum utilization rate of the first frequency band can be improved, but also the resource bandwidth of the system is saved.
  • the embodiment of the present invention provides a downlink data transmission method.
  • the terminal device When the first frequency band is an unlicensed frequency band (ie, B46), the terminal device still enables the terminal device to support only a partial CA combination of the first type of Intra-band NC CA combination.
  • the device can report to the network device that the first type of Intra-band NC CA is supported by the B46, and the maximum downlink spectrum width that can be supported by the B46 can be sent to the network device, so that the network device receives the After the CA capability indication information, the first one that matches the maximum downlink spectrum width supported by the terminal device may be selected from the at least one first type of Intra-band NC CA combination of the B46 when the downlink data can be transmitted to the terminal device using the B46.
  • the CA combination sends the downlink data to the terminal device, so that the terminal device can correctly receive and parse the downlink data, improve the spectrum utilization rate of the unlicensed band (ie, B46), and improve the downlink throughput of the terminal device.
  • the downlink data transmission method according to the embodiment of the present invention includes, but is not limited to, the foregoing application scenario, and the present invention can be applied to all scenarios in which the network device uses the Intra-band NC CA to send downlink data to the terminal device.
  • the downlink data transmission method provided by the embodiment includes, but is not limited to, the foregoing application scenario, and the present invention can be applied to all scenarios in which the network device uses the Intra-band NC CA to send downlink data to the terminal device.
  • the downlink data transmission method provided by the embodiment is not limited to, the foregoing application scenario, and the present invention can be applied to all scenarios in which the network device uses the Intra-band NC CA to send downlink data to the terminal device.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.
  • FIG. 8 is a schematic structural diagram of Embodiment 1 of a downlink data transmission apparatus according to an embodiment of the present invention.
  • the downlink data transmission apparatus may be implemented as part or all of a network device by using software, hardware, or a combination of the two.
  • the downlink data transmission device may include: a receiving module 11, Determining module 12 and transmitting module 13; wherein
  • the receiving module 11 may be configured to receive carrier aggregation CA capability indication information sent by the terminal device, where the CA capability indication information is used to indicate to the network device that the terminal device supports the first type of inband non-contiguous carrier aggregation Intra-band NC in the first frequency band.
  • the determining module 12 is configured to determine, according to the CA capability indication information received by the receiving module 11, the first CA combination from the at least one first type of Intra-band NC CA combination in the first frequency band, where the first CA combination includes at least two Member carrier CC;
  • the sending module 13 can be configured to send downlink data to the terminal device by using the first CA combination determined by the determining module 12.
  • the downlink data transmission device provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • the receiving module 11 may receive the CA capability indication information by receiving the terminal device capability information sent by the terminal device, where the terminal device capability information includes the CA capability indication information.
  • the determining module 12 is specifically configured to determine a maximum occupied spectrum width according to a spectrum width occupied by each first type of Intra-band NC CA combination, and according to a maximum occupied spectrum width and a maximum downlink supported by the terminal device.
  • the spectrum width determines the first CA combination.
  • the determining module 12 is configured to determine the first CA combination according to the maximum occupied spectrum width and the maximum downlink spectrum width supported by the terminal device, where specifically:
  • the determining module 12 is specifically configured to determine, according to the maximum occupied spectrum width and the maximum downlink spectrum width supported by the terminal device, that the maximum downlink spectrum width supported by the terminal device is less than the maximum occupied spectrum width, and from the first type of the first frequency band. Determining, in the Intra-band NC CA combination, at least one second available CA combination having a spectral width less than or equal to a maximum downlink spectral width, determining a first CA combination according to the at least one second available CA combination; the at least one second available CA combination including The first CA combination.
  • the determining module 12 is configured to determine the first CA combination according to the maximum occupied spectrum width and the maximum downlink spectrum width supported by the terminal device, where specifically:
  • the determining module 12 is specifically configured to determine, according to the maximum occupied spectrum width and the maximum downlink spectrum width supported by the terminal device, that the maximum downlink spectrum width supported by the terminal device is greater than or equal to the maximum occupied spectrum width, and from at least one first type of Intra The first CA combination is determined in the -band NC CA combination.
  • the downlink data transmission device provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • FIG. 9 is a schematic structural diagram of Embodiment 2 of a downlink data transmission apparatus according to an embodiment of the present invention.
  • the downlink data transmission apparatus may be implemented as part or all of a terminal device by using software, hardware, or a combination of the two.
  • the downlink data transmission device may include: a sending module 21; wherein
  • the sending module 21 is configured to send carrier aggregation CA capability indication information to the network device, where the CA capability indication information is used to indicate to the network device that the terminal device supports the first type of inband non-contiguous carrier aggregation Intra-band NC CA combination in the first frequency band. And, the maximum downlink spectrum width supported by the terminal device.
  • the first frequency band may be any one of Band 39, Band 40, Band 41, LAA band (ie, Band 46).
  • the downlink data transmission device provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • the sending module 21 may be configured to send, to the network device, terminal device capability information that carries the CA capability indication information.
  • the apparatus may further include: an obtaining module 22, configured to acquire a maximum downlink supported by the terminal device before the sending module 21 sends the carrier aggregation CA capability indication information to the network device. Spectrum width.
  • the acquiring module 22 may be specifically configured to determine a maximum downlink spectrum width supported by the terminal device according to the performance of the low noise amplifier LNA of the terminal device.
  • the downlink data transmission device provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • the downlink data transmission apparatus may be a network device, and the downlink data transmission apparatus may include: a receiver 31, and a processor. 32 and a transmitter 33; wherein the receiver 31 and the transmitter 33 It can be integrated in the transceiver of the downlink data transmission device, or can be an independent transceiver antenna on the downlink data transmission device;
  • the receiver 31 may be configured to receive carrier aggregation CA capability indication information sent by the terminal device, where the CA capability indication information is used to indicate to the network device that the terminal device supports the first type of inband non-contiguous carrier aggregation Intra-band NC in the first frequency band.
  • the processor 32 may be configured to determine, according to the CA capability indication information received by the receiver 31, the first CA combination from the at least one first type of Intra-band NC CA combination of the first frequency band, where the first CA combination includes at least two Member carrier CC;
  • the transmitter 33 is configured to send downlink data to the terminal device by using the first CA combination determined by the processor 32.
  • the downlink data transmission device provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • the receiver 31 is specifically configured to receive terminal device capability information sent by the terminal device, where the terminal device capability information includes CA capability indication information.
  • the processor 32 is specifically configured to determine a maximum occupied spectrum width according to a spectrum width occupied by each first type of Intra-band NC CA combination, and according to a maximum occupied spectrum width and a maximum downlink supported by the terminal device.
  • the spectrum width determines the first CA combination.
  • the processor 32 is configured to determine the first CA combination according to the maximum occupied spectrum width and the maximum downlink spectrum width supported by the terminal device, where specifically:
  • the processor 32 may be configured to determine, according to a maximum occupied spectrum width and a maximum downlink spectrum width supported by the terminal device, that a maximum downlink spectrum width supported by the terminal device is less than a maximum occupied spectrum width, and at least one first type from the first frequency band. Determining, in the Intra-band NC CA combination, at least one second available CA combination having a spectral width less than or equal to a maximum downlink spectral width, determining a first CA combination according to the at least one second available CA combination; the at least one second available CA combination including The first CA combination.
  • the processor 32 is configured to determine the first CA combination according to the maximum occupied spectrum width and the maximum downlink spectrum width supported by the terminal device, where specifically:
  • the processor 32 may be specifically configured to support the maximum occupied spectrum width and the terminal device.
  • the maximum downlink spectrum width determining that the maximum downlink spectrum width supported by the terminal device is greater than or equal to the maximum occupied spectrum width, and determining the first CA combination from the at least one first type of Intra-band NC CA combination.
  • the downlink data transmission device provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • FIG. 11 is a schematic structural diagram of Embodiment 4 of a downlink data transmission apparatus according to an embodiment of the present disclosure.
  • the downlink data transmission apparatus may be a terminal device, where the downlink data transmission apparatus may include: a transmitter 41;
  • the transmitter 41 can be integrated in the transceiver of the terminal device, or can be an independent transceiver antenna on the terminal device.
  • the transmitter 41 is configured to send carrier aggregation CA capability indication information to the network device, where the CA capability indication information is used to indicate to the network device that the terminal device supports the first type of inband non-contiguous carrier aggregation Intra-band NC CA combination in the first frequency band. And, the maximum downlink spectrum width supported by the terminal device.
  • the first frequency band may be any one of Band 39, Band 40, Band 41, and LAA band (ie, Band 46).
  • the downlink data transmission device provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • the transmitter 41 may be configured to send, to the network device, terminal device capability information that carries the CA capability indication information.
  • the foregoing apparatus may further include:
  • the processor 42 is configured to obtain a maximum downlink spectrum width supported by the terminal device before the transmitter 41 sends the carrier aggregation CA capability indication information to the network device.
  • the processor 42 may be specifically configured to determine a maximum downlink spectrum width supported by the terminal device according to the performance of the low noise amplifier LNA of the terminal device.
  • the downlink data transmission device provided by the embodiment of the present invention may perform the foregoing method embodiments, and the implementation principles and technical effects thereof are similar, and details are not described herein again.
  • the terminal device may be a wireless terminal such as a mobile phone or a tablet computer. Therefore, the terminal device is used as a mobile phone as an example:
  • FIG. 12 is a partial structure of the terminal device when the terminal device is a mobile phone according to an embodiment of the present invention. Block diagram.
  • the mobile phone may include: a radio frequency (RF) circuit 1110, a memory 1120, an input unit 1130, a display unit 1140, a sensor 1150, an audio circuit 1160, a wireless fidelity (WiFi) module 1170, Processor 1180, and power supply 1190 and other components.
  • RF radio frequency
  • the structure of the handset shown in FIG. 12 does not constitute a limitation to the handset, and may include more or less components than those illustrated, or some components may be combined, or different component arrangements.
  • the RF circuit 1110 can be used for receiving and transmitting signals during the transmission or reception of information or during a call. Specifically, after receiving the downlink information of the base station, the processing is performed by the processor 1180. In addition, the uplink data is sent to the base station.
  • RF circuits include, but are not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like.
  • LNA Low Noise Amplifier
  • RF circuitry 1110 can also communicate with the network and other devices via wireless communication. The above wireless communication may use any communication standard or protocol, including but not limited to Global System of Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (Code Division). Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), e-mail, Short Messaging Service (SMS), and the like.
  • GSM Global System of Mobile communication
  • GPRS General
  • the memory 1120 can be used to store software programs and modules, and the processor 1180 executes various functional applications and data processing of the mobile phone by running software programs and modules stored in the memory 1120.
  • the memory 1120 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may be stored according to Data created by the use of the mobile phone (such as audio data, phone book, etc.).
  • memory 1120 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
  • the input unit 1130 can be configured to receive input numeric or character information and to generate key signal inputs related to user settings and function controls of the handset.
  • the input unit 1130 may include a touch panel 1131 and other input devices 1132.
  • the touch panel 1131 also referred to as a touch screen, can collect touch operations on or near the user (such as the user using a finger, a stylus, or the like on the touch panel 1131 or near the touch panel 1131. Operation), and drive the corresponding connecting device according to a preset program.
  • the touch panel 1131 may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the touch orientation of the user and detects Touching the signal from the operation, transmitting the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, sends it to the processor 1180, and can receive the processor 1180.
  • the order is executed and executed.
  • the touch panel 1131 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.
  • the input unit 1130 may also include other input devices 1132.
  • other input devices 1132 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, and the like.
  • the display unit 1140 can be used to display information input by the user or information provided to the user as well as various menus of the mobile phone.
  • the display unit 1140 may include a display panel 1141.
  • the display panel 1141 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.
  • the touch panel 1131 can be overlaid on the display panel 1141. When the touch panel 1131 detects a touch operation thereon or nearby, the touch panel 1131 transmits to the processor 1180 to determine the type of the touch event, and then the processor 1180 is The type of touch event provides a corresponding visual output on display panel 1141.
  • touch panel 1131 and the display panel 1141 are used as two independent components to implement the input and input functions of the mobile phone in FIG. 12, in some embodiments, the touch panel 1131 and the display panel 1141 may be integrated. Realize the input and output functions of the phone.
  • the handset may also include at least one type of sensor 1150, such as a light sensor, motion sensor, and other sensors.
  • the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 1141 according to the brightness of the ambient light, and the light sensor may close the display panel 1141 and/or when the mobile phone moves to the ear. Or backlight.
  • the acceleration sensor can detect the acceleration of each direction (usually three axes). When it is still, it can detect the magnitude and direction of gravity. It can be used to identify the gesture of the mobile phone (such as horizontal and vertical screen switching, related games).
  • the mobile phone can also be configured with gyroscopes, barometers, hygrometers, thermometers, infrared sensors and other sensors, no longer repeat .
  • Audio circuitry 1160, speaker 1161, and microphone 1162 can provide an audio interface between the user and the handset.
  • the audio circuit 1160 can transmit the converted electrical data of the received audio data to the speaker 1161, and convert it into a sound signal output by the speaker 1161; on the other hand, the microphone 1162 converts the collected sound signal into an electrical signal, and the audio circuit 1160 Converted to audio data after receiving, and then After processing by the audio data output processor 1180, it is sent via RF circuit 1110 to, for example, another handset, or the audio data is output to memory 1120 for further processing.
  • WiFi is a short-range wireless transmission technology.
  • the mobile phone can help users to send and receive emails, browse web pages and access streaming media through the WiFi module 1170, which provides users with wireless broadband Internet access.
  • FIG. 12 shows the WiFi module 1170, it can be understood that it does not belong to the essential configuration of the mobile phone, and may be omitted as needed within the scope of not changing the essence of the invention.
  • the processor 1180 is a control center for the handset, which connects various portions of the entire handset using various interfaces and lines, by executing or executing software programs and/or modules stored in the memory 1120, and invoking data stored in the memory 1120, The phone's various functions and processing data, so that the overall monitoring of the phone.
  • the processor 1180 may include one or more processing units; preferably, the processor 1180 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, and the like.
  • the modem processor primarily handles wireless communications. It will be appreciated that the above described modem processor may also not be integrated into the processor 1180.
  • the handset also includes a power source 1190 (such as a battery) that powers the various components.
  • a power source can be logically coupled to the processor 1180 via a power management system to manage functions such as charging, discharging, and power management through the power management system.
  • the mobile phone can also include a camera 1200, which can be a front camera or a rear camera.
  • the mobile phone may further include a Bluetooth module, a GPS module, and the like, and details are not described herein again.
  • the processor 1180 included in the mobile phone may be used to perform the foregoing method for performing the downlink data transmission method.
  • the implementation principle and technical effects are similar, and details are not described herein again.

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Abstract

本发明实施例提供一种下行数据传输方法和装置，该方法包括：网络设备接收终端设备发送的载波聚合CA能力指示信息；CA能力指示信息用于向网络设备指示终端设备在第一频段支持第一类型的带内非连续载波聚合Intra-band NC CA组合，以及，终端设备支持的最大下行频谱宽度；网络设备根据CA能力指示信息，从第一频段的至少一个第一类型的Intra-band NC CA组合中确定第一CA组合，第一CA组合包括至少两个成员载波CC；网络设备通过第一CA组合向终端设备发送下行数据，从而在第一频段为免许可频段时，能够提高免许可频段(即B46)的频谱利用率，也能够提高终端设备的下行吞吐量。

Description

下行数据传输方法和装置 技术领域
本发明实施例涉及通信技术，尤其涉及一种下行数据传输方法和装置。
背景技术
授权辅助接入的长期演进(Licensed-Assisted Access using Long Term Evolution，简称：LAA-LTE)***通过载波聚合(Carrier Aggregation，CA)技术，可以利用5GHz免许可频段Band46来扩展现有的LTE服务，即使用免许可频段Band46承载LTE***中的部分数据业务。
现有技术中，LAA-LTE***下的网络设备在使用免许可频段Band46向终端设备发送数据时，会先根据终端设备上报的所支持的载波聚合(Carrier Aggregation，简称：CA)组合类型，确定终端设备可以支持哪种类型的CA组合，从而使得网络设备可以根据终端设备所支持的CA组合类型，选择与该CA组合类型对应的CA组合向终端设备发送下行数据，以提高下行数据的传输速率。其中，上述所说的CA组合类型例如可以为：频段内包括两个成员载波(Component Carrier，简称：CC)的CA组合类型、频段内包括三个CC的CA组合类型、频段间包括三个CC的CA组合类型等。
但是，网络设备在根据终端设备上报的终端设备所支持的CA组合类型选择CA组合向终端设备发送下行数据时，免许可频段的频谱利用率较低，终端设备下行吞吐量较低。
发明内容
本发明实施例提供一种下行数据传输方法和装置，用于解决现有技术中网络设备在根据终端设备上报的终端设备所支持的CA组合类型选择CA组合向终端设备发送下行数据时，免许可频段的频谱利用率较低，终端设备下行吞吐量较低的技术问题。
第一方面，本发明实施例提供一种下行数据传输方法，所述方法包括：
网络设备接收终端设备发送的载波聚合CA能力指示信息；所述CA能 力指示信息用于向所述网络设备指示所述终端设备在第一频段支持第一类型的带内非连续载波聚合Intra-band NC CA组合，以及，所述终端设备支持的最大下行频谱宽度；
所述网络设备根据所述CA能力指示信息，从所述第一频段的至少一个第一类型的Intra-band NC CA组合中确定第一CA组合，所述第一CA组合包括至少两个成员载波CC；
所述网络设备通过所述第一CA组合向所述终端设备发送下行数据。
通过第一方面提供的下行数据传输方法，当第一频段为免许可频段(即B46)时，使得终端设备在B46仅支持第一类型的Intra-band NC CA组合中的部分CA组合的情况下，仍然可以向网络设备上报在B46支持第一类型的Intra-band NC CA组合，并可以将自身所能支持的最大下行频谱宽度携带在该CA能力指示信息发送给网络设备，以使得网络设备接收到该CA能力指示信息之后，可以在能够使用B46向终端设备发送下行数据时，从B46的多个第一类型的CA组合中选择与终端设备所支持的最大下行频谱宽度匹配的第一CA组合向终端设备发送下行数据，以使得终端设备可以正确的接收和解析该下行数据，提高了免许可频段(即B46)的频谱利用率，也提高了终端设备的下行吞吐量。
进一步地，在第一方面的一种可能的实施方式中，所述网络设备根据所述CA能力指示信息，从所述第一频段的至少一个第一类型的Intra-band NC CA组合中确定第一CA组合，具体包括：
所述网络设备根据每个所述第一类型的Intra-band NC CA组合占用的频谱宽度，确定最大占用频谱宽度；
所述网络设备根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述第一CA组合。
可选的，在第一方面的一种可能的实施方式中，所述网络设备根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述第一CA组合，具体包括：
所述网络设备根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述终端设备支持的最大下行频谱宽度小于所述最大占用频谱宽度；
所述网络设备从所述第一频段的至少一个第一类型的Intra-band NC CA组合中确定频谱宽度小于或等于所述最大下行频谱宽度的至少一个第二可用CA组合；
所述网络设备根据所述至少一个第二可用CA组合，确定所述第一CA组合；所述至少一个第二可用CA组合包括所述第一CA组合。
通过该可能的实施方式提供的下行数据传输方法，使得网络设备接收到终端设备发送的CA能力指示信息之后，可以根据自己所配置的第一频段的每个第一类型的Intra-band NC CA组合确定最大占用频谱宽度，从而可以根据该最大占用频谱宽度和终端设备支持的最大下行频谱宽度，从第一频段的多个第一类型的CA组合中选择与终端设备所支持的最大下行频谱宽度最匹配的第一CA组合向终端设备发送下行数据，以使得终端设备可以正确的接收和解析该下行数据，提高了第一频段的频谱利用率，也提高了终端设备的下行吞吐量。
可选的，在第一方面的一种可能的实施方式中，所述网络设备根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述第一CA组合，具体包括：
所述网络设备根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述终端设备支持的最大下行频谱宽度大于或等于所述最大占用频谱宽度；
所述网络设备从所述至少一个第一类型的Intra-band NC CA组合中确定所述第一CA组合。
通过该可能的实施方式提供的下行数据传输方法，使得网络设备接收到终端设备发送的CA能力指示信息之后，可以根据自己所配置的第一频段的每个第一类型的Intra-band NC CA组合确定最大占用频谱宽度，从而可以根据该最大占用频谱宽度和终端设备支持的最大下行频谱宽度，从第一频段的多个第一类型的CA组合中选择与终端设备所支持的最大下行频谱宽度最匹配的第一CA组合向终端设备发送下行数据，以使得终端设备可以正确的接收和解析该下行数据，提高了第一频段的频谱利用率，也提高了终端设备的下行吞吐量。
可选的，在第一方面的一种可能的实施方式中，所述网络设备接收终端 设备发送的CA能力指示信息，包括：
所述网络设备接收所述终端设备发送的终端设备能力信息；所述终端设备能力信息包括所述CA能力指示信息。
第二方面，本发明实施例提供一种下行数据传输方法，所述方法包括：
终端设备向网络设备发送载波聚合CA能力指示信息；所述CA能力指示信息用于向所述网络设备指示所述终端设备在第一频段支持第一类型的带内非连续载波聚合Intra-band NC CA组合，以及，所述终端设备支持的最大下行频谱宽度。
进一步地，在第二方面的一种可能的实施方式中，所述终端设备向网络设备发送载波聚合CA能力指示信息之前，所述方法还包括：
所述终端设备获取所述终端设备支持的最大下行频谱宽度。
可选的，在第二方面的一种可能的实施方式中，所述终端设备获取所述终端设备支持的最大下行频谱宽度，具体包括：
所述终端设备根据所述终端设备的低噪声放大器LNA的性能，确定所述终端设备支持的最大下行频谱宽度。
可选的，在第二方面的一种可能的实施方式中，所述终端设备向网络设备发送载波聚合CA能力指示信息，具体包括：
所述终端设备向所述网络设备发送终端设备能力信息；所述终端设备能力信息包括所述CA能力指示信息。
上述第二方面以及第二方面的各可能的实施方式所提供的下行数据传输方法，其有益效果可以参见上述第一方面和第一方面的各可能的实施方式所带来的有益效果，在此不再赘述。
第三方面，本发明实施例提供一种下行数据传输装置，所述装置包括：
接收模块，用于接收终端设备发送的载波聚合CA能力指示信息；所述CA能力指示信息用于向网络设备指示所述终端设备在第一频段支持第一类型的带内非连续载波聚合Intra-band NC CA组合，以及，所述终端设备支持的最大下行频谱宽度；
确定模块，用于根据所述接收模块接收到的所述CA能力指示信息，从所述第一频段的至少一个第一类型的Intra-band NC CA组合中确定第一CA组合，所述第一CA组合包括至少两个成员载波CC；
发送模块，用于通过所述确定模块确定的所述第一CA组合向所述终端设备发送下行数据。
进一步地，在第三方面的一种可能的实施方式中，所述确定模块，具体用于根据每个所述第一类型的Intra-band NC CA组合占用的频谱宽度，确定最大占用频谱宽度，并根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述第一CA组合。
可选的，在第三方面的一种可能的实施方式中，所述确定模块，用于根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述第一CA组合，具体为：
所述确定模块，具体用于根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述终端设备支持的最大下行频谱宽度小于所述最大占用频谱宽度，并从所述第一频段的至少一个第一类型的Intra-band NC CA组合中确定频谱宽度小于或等于所述最大下行频谱宽度的至少一个第二可用CA组合，根据所述至少一个第二可用CA组合，确定所述第一CA组合；所述至少一个第二可用CA组合包括所述第一CA组合。
可选的，在第三方面的一种可能的实施方式中，所述确定模块，用于根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述第一CA组合，具体为：
所述确定模块，具体用于根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述终端设备支持的最大下行频谱宽度大于或等于所述最大占用频谱宽度，并从所述至少一个第一类型的Intra-band NC CA组合中确定所述第一CA组合。
可选的，在第三方面的一种可能的实施方式中，所述接收模块，具体用于接收所述终端设备发送的终端设备能力信息；所述终端设备能力信息包括所述CA能力指示信息。
上述第三方面以及第三方面的各可能的实施方式所提供的下行数据传输装置，其有益效果可以参见上述第一方面和第一方面的各可能的实施方式所带来的有益效果，在此不再赘述。
第四方面，本发明实施例提供一种下行数据传输装置，所述装置包括：
发送模块，用于向网络设备发送载波聚合CA能力指示信息；所述CA 能力指示信息用于向所述网络设备指示所述终端设备在第一频段支持第一类型的带内非连续载波聚合Intra-band NC CA组合，以及，所述终端设备支持的最大下行频谱宽度。
进一步地，在第四方面的一种可能的实施方式中，所述装置还包括：
获取模块，用于在所述发送模块向网络设备发送载波聚合CA能力指示信息之前，获取所述终端设备支持的最大下行频谱宽度。
可选的，在第四方面的一种可能的实施方式中，所述获取模块，具体用于根据所述终端设备的低噪声放大器LNA的性能，确定所述终端设备支持的最大下行频谱宽度。
可选的，在第四方面的一种可能的实施方式中，所述发送模块，具体用于向所述网络设备发送终端设备能力信息；所述终端设备能力信息包括所述CA能力指示信息。
上述第四方面以及第四方面的各可能的实施方式所提供的下行数据传输装置，其有益效果可以参见上述第一方面和第一方面的各可能的实施方式所带来的有益效果，在此不再赘述。
第五方面，本发明实施例提供一种下行数据传输装置，所述装置包括：
接收器，用于接收终端设备发送的载波聚合CA能力指示信息；所述CA能力指示信息用于向网络设备指示所述终端设备在第一频段支持第一类型的带内非连续载波聚合Intra-band NC CA组合，以及，所述终端设备支持的最大下行频谱宽度；
处理器，用于根据所述接收器接收到的所述CA能力指示信息，从所述第一频段的至少一个第一类型的Intra-band NC CA组合中确定第一CA组合，所述第一CA组合包括至少两个成员载波CC；
发送器，用于通过所述处理器确定的所述第一CA组合向所述终端设备发送下行数据。
进一步地，在第五方面的一种可能的实施方式中，所述处理器，具体用于根据每个所述第一类型的Intra-band NC CA组合占用的频谱宽度，确定最大占用频谱宽度，并根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述第一CA组合。
可选的，在第五方面的一种可能的实施方式中，所述处理器，用于根据 所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述第一CA组合，具体为：
所述处理器，具体用于根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述终端设备支持的最大下行频谱宽度小于所述最大占用频谱宽度，并从所述第一频段的至少一个第一类型的Intra-band NC CA组合中确定频谱宽度小于或等于所述最大下行频谱宽度的至少一个第二可用CA组合，根据所述至少一个第二可用CA组合，确定所述第一CA组合；所述至少一个第二可用CA组合包括所述第一CA组合。
可选的，在第五方面的一种可能的实施方式中，所述处理器，用于根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述第一CA组合，具体为：
所述处理器，具体用于根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述终端设备支持的最大下行频谱宽度大于或等于所述最大占用频谱宽度，并从所述至少一个第一类型的Intra-band NC CA组合中确定所述第一CA组合。
可选的，在第五方面的一种可能的实施方式中，所述接收器，具体用于接收所述终端设备发送的终端设备能力信息；所述终端设备能力信息包括所述CA能力指示信息。
上述第五方面以及第五方面的各可能的实施方式所提供的下行数据传输装置，其有益效果可以参见上述第一方面和第一方面的各可能的实施方式所带来的有益效果，在此不再赘述。
第六方面，本发明实施例提供一种下行数据传输装置，所述装置包括：
发送器，用于向网络设备发送载波聚合CA能力指示信息；所述CA能力指示信息用于向所述网络设备指示所述终端设备在第一频段支持第一类型的带内非连续载波聚合Intra-band NC CA组合，以及，所述终端设备支持的最大下行频谱宽度。
进一步地，在第六方面的一种可能的实施方式中，所述装置还包括：
处理器，用于在所述发送器向网络设备发送载波聚合CA能力指示信息之前，获取所述终端设备支持的最大下行频谱宽度。
可选的，在第六方面的一种可能的实施方式中，所述处理器，具体用于 根据所述终端设备的低噪声放大器LNA的性能，确定所述终端设备支持的最大下行频谱宽度。
可选的，在第六方面的一种可能的实施方式中，所述发送器，具体用于向所述网络设备发送终端设备能力信息；所述终端设备能力信息包括所述CA能力指示信息。
上述第六方面以及第六方面的各可能的实施方式所提供的下行数据传输装置，其有益效果可以参见上述第一方面和第一方面的各可能的实施方式所带来的有益效果，在此不再赘述。
结合上述第一方面以及第一方面的各可能的实施方式、第二方面以及第二方面的各可能的实施方式、第三方面以及第三方面的各可能的实施方式、第四方面以及第四方面的各可能的实施方式、第五方面以及第五方面的各可能的实施方式、第六方面以及第六方面的各可能的实施方式，所述第一频段为授权频谱辅助接入LAA频段。
本发明实施例提供下行数据传输方法和装置，当第一频段为免许可频段(即B46)时，使得终端设备在B46仅支持第一类型的Intra-band NC CA组合中的部分CA组合的情况下，仍然可以向网络设备上报在B46支持第一类型的Intra-band NC CA组合，并可以将自身所能支持的最大下行频谱宽度携带在该CA能力指示信息发送给网络设备，以使得网络设备接收到该CA能力指示信息之后，可以在能够使用B46向终端设备发送下行数据时，从B46的多个第一类型的CA组合中选择与终端设备所支持的最大下行频谱宽度匹配的第一CA组合向终端设备发送下行数据，以使得终端设备可以正确的接收和解析该下行数据，提高了免许可频段(即B46)的频谱利用率，也提高了终端设备的下行吞吐量。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的终端设备的射频模块示意图；
图2为本发明实施例提供的B46Intra-band NC CA组合A的频谱宽度的示意图；
图3为本发明实施例提供的B46Intra-band NC CA组合B的频谱宽度的示意图；
图4为本发明实施例提供的下行数据传输方法实施例一的流程示意图；
图5为本发明实施例提供的下行数据传输方法实施例二的流程示意图；
图6为本发明实施例提供的下行数据传输方法实施例三的流程示意图；
图7为本发明实施例提供的下行数据传输方法实施例四的流程示意图；
图8为本发明实施例提供的下行数据传输装置实施例一的结构示意图；
图9为本发明实施例提供的下行数据传输装置实施例二的结构示意图；
图10为本发明实施例提供的下行数据传输装置实施例三的结构示意图；
图11为本发明实施例提供的下行数据传输装置实施例四的结构示意图；
图12为本发明实施例提供的终端设备为手机时的部分结构的框图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
应当理解，本文中使用的术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
应当理解，尽管在本发明实施例中可能采用术语第一、第二、第三等来描述CA组合，但这些CA组合不应限于这些术语。这些术语仅用来将不同的CA组合彼此区分开。例如，在不脱离本发明实施例范围的情况下，第一CA组合也可以被称为第二CA组合，类似地，第二CA组合也可以被称为第一CA组合。
本发明实施例涉及的终端设备，可以是指向用户提供语音和/或数据连通 性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，无线终端可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(PCS，Personal Communication Service)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(WLL，Wireless Local Loop)站、个人数字助理(PDA，Personal Digital Assistant)等设备。无线终端也可以称为***、订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、接入点(Access Point)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)、用户设备(User Device)、或用户装备(User Equipment)。”
本发明实施例所涉及的网络设备，可以是基站，或者接入点，或者可以是指接入网中在空中接口上通过一个或多个扇区与无线终端通信的设备。基站可用于将收到的空中帧与IP分组进行相互转换，作为无线终端与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)网络。基站还可协调对空中接口的属性管理。例如，基站可以是GSM或CDMA中的基站(BTS，Base Transceiver Station)，也可以是WCDMA中的基站(NodeB)，还可以是LTE中的演进型基站(eNB或e-NodeB，evolutional Node B)，本申请并不限定。
本发明实施例提供的下行数据传输方法，可以适用于长期演进Long Term Evolution，简称：LTE)***下、或者、授权辅助接入的长期演进(Licensed-Assisted Access using Long Term Evolution，简称：LAA-LTE)***下向网络设备上报所支持的带内非连续载波聚合(Intra-band Non-contiguous Carrier Aggregation，简称：Intra-band NC CA)CA组合类型的终端设备，以及，根据终端设备上报的终端设备所支持的Intra-band NC CA组合类型，选择与该类型对应的Intra-band NC CA组合向终端设备发送下行数据的网络设备等。
以LAA-LTE***的LAA频段(即Band46，简称：B46)为例，现有 技术中，LAA-LTE***下的终端设备可以向网络设备上报自己的所支持的B46Intra-band NC CACA组合类型，以向网络设备指示终端设备是否支持该种组合类型所对应的CA组合，从而使得网络设备在接收到终端设备所上报的终端设备所支持的B46Intra-band NC CA组合类型之后，确定终端设备是否支持该种类型的B46Intra-band NC CA组合，并在确定终端设备支持该种类型的B46Intra-band NC CA组合时，才会为终端设备配置该种类型的B46Intra-band NC CA的工作模式，并使用该种类型的B46Intra-band NC CA组合向终端设备发送下行数据。
对于终端设备来说，终端设备是否支持哪种类型的B46Intra-band NC CA组合取决于终端设备的射频模块的低噪声放大器(Low Noise Amplifier，简称：LNA)，图1为本发明实施例提供的终端设备的射频模块示意图，如图1所示，现有的终端设备的射频模块包括一个LNA、至少一个本振振荡器(Local Oscillator，简称：LO)例如：图1中所示的LO1和LO2、至少一个数模转换器(Analog-to-Digital Converter，简称：ADC)等，其中，上述LNA可以将射频模块接收到的无线信号进行放大处理。然而，对于大多数的终端设备来说，其上的LNA仅能够处理一定频谱宽度(例如：200-300MHZ)的高频信号(即大于2GHZ的无线信号)，LNA无法处理超过其所能够处理的频谱宽度范围的高频信号，使得终端设备无法正确的接收和解析超过其所能够处理的频谱宽度范围的高频信号。
然而，对于定义了775MHZ频谱宽度的LAA-LTE***中的LAA频段来说，网络设备可以使用的某一B46Intra-band NC CA组合类型所对应的一个或多个B46Intra-band NC CA组合所占用的频谱宽度可能会大于终端设备的LNA的处理能力。示例性的，图2为本发明实施例提供的B46Intra-band NC CA组合A的频谱宽度的示意图，如图2所示，假定终端设备所支持的B46Intra-band NC CA组合类型为频段内包括两个CC的CA组合类型，其中，B46包括4个CC，分别为CC1、CC2、CC3、CC4，该种类型对应的其中一个CA组合A包括CC1和CC4，则该CA组合A占用的频谱宽度为：CC1占用的频谱起点至CC4占用的频谱终点。图3为本发明实施例提供的B46Intra-band NC CA组合B的频谱宽度的示意图，如图3所示，假定上述类型所对应的另一CA组合B包括CC1和CC2，则该CA组合B占用的频谱宽度 为：CC1占用的频谱起点至CC2占用的频谱终点。
现有技术中，若终端设备的LNA所能够处理的无线信号的频谱宽度小于上述CA组合A所占用的频谱宽度，但大于上述CA组合B所占用的频谱宽度，在这种情况下，终端设备仅会发送不支持该种类型的B46Intra-band NC CA组合，从而导致网络设备无法使用小于终端设备的LNA所能够处理的频谱宽度的CA组合(例如上述CA组合B)向终端设备发送下行数据，使得免许可频段(即Band46)的频谱利用率较低，终端设备下行吞吐量较低。
而本发明实施例提供的下行数据传输方法，在终端设备的LNA所能够处理的无线信号的频谱宽度小于上述CA组合A所占用的频谱宽度，但大于上述CA组合B所占用的频谱宽度这种情况下，终端设备会向网络设备上报“支持该种类型的B46Intra-band NC CA组合，以及，其所能够支持的最大下行频谱宽度”的CA能力指示信息，以使得网络设备在接收到该CA能力指示信息之后，在可以使用B46向终端设备发送下行数据时，根据终端设备所能够支持的最大下行频谱宽度，在终端设备所支持的B46Intra-band NC CA组合类型所对应的多个CA组合中，选择与终端设备所能够支持的最大下行频谱宽度匹配的CA组合向终端设备发送下行数据，提高了免许可频段(即Band46)的频谱利用率，也提高了终端设备的下行吞吐量。因此，本发明实施例所涉及的下行数据传输方法，旨在解决现有技术中网络设备在根据终端设备上报的终端设备所支持的CA组合类型选择CA组合向终端设备发送下行数据时，免许可频段的频谱利用率较低，终端设备下行吞吐量较低的技术问题。
下面以具体地实施例对本发明的技术方案以及本发明的技术方案如何解决上述技术问题进行详细说明。下面这几个具体的实施例可以相互结合，对于相同或相似的概念或过程可能在某些实施例中不再赘述。
图4为本发明实施例提供的下行数据传输方法实施例一的流程示意图。本实施例涉及的是网络设备根据终端设备发送的CA能力指示信息，从第一频段的至少一个第一Intra-band NC CA组合中确定第二CA组合的具体过程。如图4所示，该方法包括：
S401、终端设备向网络设备发送CA能力指示信息。
具体的，在本实施例中，上述终端设备可以在执行无线资源控制(Radio  Resource Control，简称：RRC)接入流程时，或者，在接收到网络设备发送的请求上报CA能力的请求消息之后，向网络设备发送CA能力指示信息。若上述终端设备在执行RRC接入流程时，向网络设备发送CA能力指示信息，则上述终端设备可以将上述CA能力指示信息携带在任一RRC信令中(该RRC信令例如可以为终端设备能力信息，即User Equipment Capability Information)发送给网络设备，也可以将CA能力指示信息单独发送给网络设备。
其中，上述CA能力指示信息不仅包括指示终端设备在第一频段支持第一类型的Intra-band NC CA组合的指示信息，同时还包括了指示终端设备支持的最大下行频谱宽度的指示信息，即还包括了指示终端设备所能接收的无线信号占用的最大频谱宽度的指示信息。需要说明的是，上述所说的第一频段可以为终端设备所在的通信***所使用的频段，以LAA-LTE***为例，上述第一频段可以为Band 39、Band 40、Band 41、LAA频段(即Band46)等中的任一频段。上述所说的第一类型具体可以为上述第一频段所包括的Intra-band NC CA组合类型中的任一类型，用于表征终端设备所能够支持的CA组合中包括的CC的数量。
本发明实施例中上述CA能力指示信息如何向网络设备指示终端设备在第一频段支持第一类型的Intra-band NC CA，具体可以参见现有技术，本发明对此不再赘述。另外，本发明实施例不限定上述CA能力指示信息如何向网络设备指示终端设备支持的最大下行频谱宽度。可选的，上述CA能力指示信息可以通过一个字段向网络设备指示终端设备支持的最大下行频谱宽度，其中，该字段可以对应多个比特数，其中，该多个比特数所组成的二进制数可以与终端设备支持的最大下行频谱宽度一一对应。可选的，上述字段还可以对应一个比特数，其中，例如：当该比特数取值为1时，表示终端设备支持的最大下行频谱宽度等于第一频段的频谱宽度的一半，当该比特数取值为0时，表示终端设备支持的最大下行频谱宽度等于第一频段的整个频谱宽度；或者，当该比特数取值为0时，表示终端设备支持的最大下行频谱宽度等于第一频段的频谱宽度的一半，当该比特数取值为1时，表示终端设备支持的最大下行频谱宽度等于第一频段的整个频谱宽度。具体实现时，可以根据用户的需求选择上述字段对应的比特数，以及上述字段对应的比特数所代表的 含义，本发明对此不再赘述。
S402、网络设备接收CA能力指示信息。
S403、网络设备根据该CA能力指示信息，从第一频段的至少一个第一类型的Intra-band NC CA组合中确定第一CA组合。
其中，上述第一载波组合包括至少两个CC。
具体的，现有技术中，鉴于不同的网络设备的应用场景不同，因此，不同网络设备在第一频段配置有不同数量的第一类型Intra-band NC CA组合，其中，上述各组合之间虽然包括的CC的数量相同，但是各组合所占用的频谱宽度可能不同，因此，当网络设备接收到终端设备发送的CA能力指示信息之后，在满足先听后发(Listen-Before-Talk，简称：LBT)条件时，就可以根据该CA能力指示信息，在其配置的第一频段的至少一个第一类型的Intra-band NC CA组合中确定与终端设备支持的最大下行频谱宽度匹配的第一CA组合。可选的，网络设备可以将任一占用频谱宽度小于或等于终端设备支持的最大下行频谱宽度的第一类型的CA组合作为第一CA组合，以使得网络设备在通过该第一CA组合向终端设备发送下行数据时，终端设备可以正确的接收和解析该下行数据。
S404、网络设备通过第一CA组合向终端设备发送下行数据。
本发明实施例提供下行数据传输方法，当第一频段为免许可频段(即B46)时，使得终端设备在B46仅支持第一类型的Intra-band NC CA组合中的部分CA组合的情况下，仍然可以向网络设备上报在B46支持第一类型的Intra-band NC CA组合，并可以将自身所能支持的最大下行频谱宽度携带在该CA能力指示信息发送给网络设备，以使得网络设备接收到该CA能力指示信息之后，可以在能够使用B46向终端设备发送下行数据时，从B46的多个第一类型的CA组合中选择与终端设备所支持的最大下行频谱宽度匹配的第一CA组合向终端设备发送下行数据，以使得终端设备可以正确的接收和解析该下行数据，提高了免许可频段(即B46)的频谱利用率，也提高了终端设备的下行吞吐量。
如上述实施例所说，终端设备的CA能力指示信息可以携带有向网络设备指示终端设备在第一频段支持第一类型的Intra-band NC CA组合，以及，终端设备支持的最大下行频谱宽度的指示信息，则进一步地，在上述实施例 的基础上，在上述S401之前，该方法还可以包括：终端设备获取终端设备支持的最大下行频谱宽度。其中，本发明实施例不限定上述终端设备如何获取自身所支持的最大下行频谱宽度，具体实现时，终端设备可以根据终端设备的LNA的性能，确定终端设备支持的最大下行频谱宽度，即将LNA所能处理的无线信号的频谱宽度作为终端设备支持的最大下行频谱宽度。可选的，上述终端设备支持的最大下行频谱宽度还可以为预设在终端设备中的最大下行频谱宽度，则在这种情况下，上述终端设备可以直接获取自身存储的该最大下行频谱宽度。
图5为本发明实施例提供的下行数据传输方法实施例二的流程示意图。本实施例涉及的是网络设备在获取到终端设备发送的CA能力指示信息之后，如何根据CA能力指示信息，从第一频段的至少一个第一类型的Intra-band NC CA组合中确定第一CA组合的具体过程，则在上述实施例的基础上，如图5所示，上述S403可以包括：
S501、网络设备根据每个第一类型的Intra-band NC CA组合占用的频谱宽度，确定最大占用频谱宽度。
具体的，鉴于不同的网络设备的应用场景不同，因此，现有技术中，不同网络设备在第一频段所配置的第一类型的Intra-band NC CA组合的个数可能不同，以及，每个CA组合所占用的频谱宽度也可能不同，因此，当网络设备获取到终端设备所发送的CA能力指示信息之后，在满足LBT条件时，网络设备可以根据为其配置的每个第一类型的Intra-band NC CA组合所占用的频谱宽度，确定最大占用频谱宽度，即确定哪个第一类型的Intra-band NC CA组合所占用的频谱宽度最大。
示例性的，假定网络设备在第一频段上配置的第一类型(即每个CA组合包括两个CC)的Intra-band NC CA组合有：CA组合1(CC1和CC6)、CA组合2(CC2和CC5)、CA组合3(CC2和CC3)、CA组合4(CC1和CC5)、CA组合5(CC1和CC2)、CA组合6(CC5和CC6)，其中，CA组合1所占用的频谱宽度大于CA组合2、CA组合3、CA组合4、CA组合5、CA组合6所占用的频谱宽度，则网络设备就可以将CA组合1所占用的频谱宽度确定为最大占用频谱宽度。
S502、网络设备根据最大占用频谱宽度和终端设备支持的最大下行频谱 宽度，确定第一CA组合。
具体的，网络设备在确定为其配置的第一频段的第一类型的Intra-band NC CA组合的最大占用频谱宽度之后，网络设备就可以根据该最大占用频谱宽度和终端设备支持的最大下行频谱宽度，确定第一CA组合，具体可以分为如下两种情况：
第一种情况：终端设备支持的最大下行频谱宽度小于最大占用频谱宽度。
图6为本发明实施例提供的下行数据传输方法实施例三的流程示意图，如图6所示，上述S502可以包括：
S601、网络设备根据最大占用频谱宽度和终端设备支持的最大下行频谱宽度，确定终端设备支持的最大下行频谱宽度小于最大占用频谱宽度。
具体的，网络设备可以将最大占用频谱宽度的具体取值和终端设备支持的最大下行频谱宽度的具体取值进行比较，以确定终端设备支持的最大下行频谱宽度是否小于最大占用频谱宽度。
S602、网络设备从第一频段的至少一个第一类型的Intra-band NC CA组合中确定频谱宽度小于或等于最大下行频谱宽度的至少一个第二可用CA组合。
具体的，若网络设备确定终端设备支持的最大下行频谱宽度小于最大占用频谱宽度，则网络设备可以将为其配置的第一频段的至少一个第一类型的Intra-band NC CA组合中频谱宽度小于或等于最大下行频谱宽度的至少一个当前可用的CA组合作为第二CA组合。其中，这里所说的可用的CA组合为当前可以被网络设备使用的CA组合。
继续参照上述S501的示例，假定网络设备配置的第一类型的Intra-band NC CA组合中的CA组合1和CA组合4所占用的频谱宽度大于终端设备的最大下行频谱宽度，CA组合2所占用的最大频谱宽度等于终端设备的最大下行频谱宽度，CA组合3、CA组合5、CA组合6小于终端设备的最大下行频谱宽度，网络设备正在使用CA组合6向其他终端设备发送下行数据，则网络设备确定频谱宽度小于或等于最大下行频谱宽度的至少一个第二可用CA组合，具体可以为：网络设备可以将频谱宽度小于或等于最大下行频谱宽度的CA组合2、CA组合3、CA组合5作为第二可用CA组合。
S603、网络设备根据至少一个第二可用CA组合，确定第一CA组合； 其中，上述至少一个第二可用CA组合包括第一CA组合。
具体的，若网络设备从第一频段的至少一个第一类型的Intra-band NC CA组合中确定出一个第二可用CA组合，则该第二可用CA组合即为第一CA组合，即网络设备直接可以使用该第一CA组合向终端设备发送下行数据，以使得终端设备可以正确的接收和解析该下行数据，提高了第一频段的频谱利用率，也提高了终端设备的下行吞吐量。
若网络设备从第一频段的至少一个第一类型的Intra-band NC CA组合中确定出多个第二可用CA组合，则网络设备可以从该多个第二可用CA组合中随机选择一个第二可用CA组合作为第一CA组合，也可以根据网络设备向终端设备待发送的下行数据量，从该多个第二可用CA组合中确定出与待发送的下行数据量适配的第一CA组合，使得网络设备在使用该第一CA组合向终端设备发送下行数据时，不仅可以提高第一频段的频谱利用率，同时，还节省了***的资源带宽。其中，上述如何根据网络设备向终端设备待发送的下行数据量，确定与待发送的下行数据量适配的第一CA组合，可以参见现有技术，对此不再赘述。
第二种情况：终端设备支持的最大下行频谱宽度大于或等于最大占用频谱宽度。
图7为本发明实施例提供的下行数据传输方法实施例四的流程示意图，如图7所示，上述S502可以包括：
S701、网络设备根据最大占用频谱宽度和终端设备支持的最大下行频谱宽度，确定终端设备支持的最大下行频谱宽度大于或等于最大占用频谱宽度。
S702、网络设备从至少一个第一类型的Intra-band NC CA组合中确定第一CA组合。
具体的，若网络设备确定终端设备支持的最大下行频谱宽度大于或等于最大占用频谱宽度，则网络设备可以在为其配置的第一频段的至少一个第一类型的Intra-band NC CA组合中选择任一可用CA组合作为第一CA组合。继续参照上述S501的示例，则在确定终端设备支持的最大下行频谱宽度大于或等于最大占用频谱宽度时，上述网络设备从至少一个Intra-band NC CA组合中确定第一CA组合，具体可以为：上述网络设备可以将CA组合1、CA组合2、CA组合3、CA组合4、CA组合5中的任一CA组合作为第一CA 组合。
在本发明的另一实现方式中，上述网络设备还可以先在上述至少一个第一类型的Intra-band NC CA组合中确定至少一个当前可用的CA组合(即第三可用CA组合)，从而使得网络设备可以根据网络设备向终端设备待发送的下行数据量，在至少一个第三可用CA组合中确定出与待发送的下行数据量适配的第一CA组合，使得网络设备在使用该第一CA组合向终端设备发送下行数据时，不仅可以提高第一频段的频谱利用率，同时，还节省了***的资源带宽。
本发明实施例提供下行数据传输方法，当第一频段为免许可频段(即B46)时，使得终端设备在B46仅支持第一类型的Intra-band NC CA组合的部分CA组合的情况下，仍然可以向网络设备上报在B46支持第一类型的Intra-band NC CA组合，并可以将自身所能支持的最大下行频谱宽度携带在该CA能力指示信息发送给网络设备，以使得网络设备接收到该CA能力指示信息之后，可以在能够使用B46向终端设备发送下行数据时，从B46的至少一个第一类型的Intra-band NC CA组合中选择与终端设备所支持的最大下行频谱宽度匹配的第一CA组合向终端设备发送下行数据，以使得终端设备可以正确的接收和解析该下行数据，提高了免许可频段(即B46)的频谱利用率，也提高了终端设备的下行吞吐量。
需要说明的是，本发明实施例所涉及的下行数据传输方法，包括但不限于以上应用场景，只要涉及网络设备使用Intra-band NC CA向终端设备发送下行数据的所有场景，均可以采用本发明实施例所提供的下行数据传输方法。
本领域普通技术人员可以理解：实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一计算机可读取存储介质中。该程序在执行时，执行包括上述各方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
图8为本发明实施例提供的下行数据传输装置实施例一的结构示意图，如图8所示，该下行数据传输装置可以通过软件、硬件或者两者的结合实现成为网络设备的部分或者全部，该下行数据传输装置可以包括：接收模块11、 确定模块12和发送模块13；其中，
接收模块11，可以用于接收终端设备发送的载波聚合CA能力指示信息；CA能力指示信息用于向网络设备指示终端设备在第一频段支持第一类型的带内非连续载波聚合Intra-band NC CA组合，以及，终端设备支持的最大下行频谱宽度；以LAA-LTE***为例，上述第一频段可以为Band 39、Band 40、Band 41、LAA频段(即Band46)等中的任一频段。
确定模块12，可以用于根据接收模块11接收到的CA能力指示信息，从第一频段的至少一个第一类型的Intra-band NC CA组合中确定第一CA组合，第一CA组合包括至少两个成员载波CC；
发送模块13，可以用于通过确定模块12确定的第一CA组合向终端设备发送下行数据。
本发明实施例提供的下行数据传输装置，可以执行上述方法实施例，其实现原理和技术效果类似，在此不再赘述。
可选的，上述接收模块11，具体可以通过接收终端设备发送的终端设备能力信息，以获取CA能力指示信息；终端设备能力信息包括CA能力指示信息。
可选的，上述确定模块12，具体可以用于根据每个第一类型的Intra-band NC CA组合占用的频谱宽度，确定最大占用频谱宽度，并根据最大占用频谱宽度和终端设备支持的最大下行频谱宽度，确定第一CA组合。
在本发明的一种实现方式中，上述确定模块12，用于根据最大占用频谱宽度和终端设备支持的最大下行频谱宽度，确定第一CA组合，具体可以为：
上述确定模块12，具体可以用于根据最大占用频谱宽度和终端设备支持的最大下行频谱宽度，确定终端设备支持的最大下行频谱宽度小于最大占用频谱宽度，并从第一频段的至少一个第一类型的Intra-band NC CA组合中确定频谱宽度小于或等于最大下行频谱宽度的至少一个第二可用CA组合，根据至少一个第二可用CA组合，确定第一CA组合；至少一个第二可用CA组合包括第一CA组合。
在本发明的另一种实现方式中，上述确定模块12，用于根据最大占用频谱宽度和终端设备支持的最大下行频谱宽度，确定第一CA组合，具体可以为：
上述确定模块12，具体可以用于根据最大占用频谱宽度和终端设备支持的最大下行频谱宽度，确定终端设备支持的最大下行频谱宽度大于或等于最大占用频谱宽度，并从至少一个第一类型的Intra-band NC CA组合中确定第一CA组合。
本发明实施例提供的下行数据传输装置，可以执行上述方法实施例，其实现原理和技术效果类似，在此不再赘述。
图9为本发明实施例提供的下行数据传输装置实施例二的结构示意图，如图9所示，该下行数据传输装置可以通过软件、硬件或者两者的结合实现成为终端设备的部分或者全部，该下行数据传输装置可以包括：发送模块21；其中，
发送模块21，用于向网络设备发送载波聚合CA能力指示信息；CA能力指示信息用于向网络设备指示终端设备在第一频段支持第一类型的带内非连续载波聚合Intra-band NC CA组合，以及，终端设备支持的最大下行频谱宽度。以LAA-LTE***为例，上述第一频段可以为Band 39、Band 40、Band41、LAA频段(即Band46)等中的任一频段。
本发明实施例提供的下行数据传输装置，可以执行上述方法实施例，其实现原理和技术效果类似，在此不再赘述。
可选的，在本发明的一种实现方式中，上述发送模块21，具体可以用于向网络设备发送携带有CA能力指示信息的终端设备能力信息。
继续参照上述图9，如图9所示，进一步地，上述装置还可以包括：获取模块22，用于在发送模块21向网络设备发送载波聚合CA能力指示信息之前，获取终端设备支持的最大下行频谱宽度。
则在本发明的一种实现方式中，上述获取模块22，具体可以用于根据终端设备的低噪声放大器LNA的性能，确定终端设备支持的最大下行频谱宽度。
本发明实施例提供的下行数据传输装置，可以执行上述方法实施例，其实现原理和技术效果类似，在此不再赘述。
图10为本发明实施例提供的下行数据传输装置实施例三的结构示意图，如图10所示，该下行数据传输装置可以为网络设备，该下行数据传输装置可以包括：接收器31、处理器32和发送器33；其中，接收器31和发送器33 可以集成在下行数据传输装置的收发信机中，也可以为下行数据传输装置上独立的收发天线；其中，
接收器31，可以用于接收终端设备发送的载波聚合CA能力指示信息；CA能力指示信息用于向网络设备指示终端设备在第一频段支持第一类型的带内非连续载波聚合Intra-band NC CA组合，以及，终端设备支持的最大下行频谱宽度；以LAA-LTE***为例，上述第一频段可以为Band 39、Band 40、Band 41、LAA频段(即Band46)等中的任一频段。
处理器32，可以用于根据接收器31接收到的CA能力指示信息，从第一频段的至少一个第一类型的Intra-band NC CA组合中确定第一CA组合，第一CA组合包括至少两个成员载波CC；
发送器33，可以用于通过处理器32确定的第一CA组合向终端设备发送下行数据。
本发明实施例提供的下行数据传输装置，可以执行上述方法实施例，其实现原理和技术效果类似，在此不再赘述。
可选的，上述接收器31，具体可以用于接收终端设备发送的终端设备能力信息；终端设备能力信息包括CA能力指示信息。
可选的，上述处理器32，具体可以用于根据每个第一类型的Intra-band NC CA组合占用的频谱宽度，确定最大占用频谱宽度，并根据最大占用频谱宽度和终端设备支持的最大下行频谱宽度，确定第一CA组合。
在本发明的一种实现方式中，上述处理器32，用于根据最大占用频谱宽度和终端设备支持的最大下行频谱宽度，确定第一CA组合，具体可以为：
上述处理器32，具体可以用于根据最大占用频谱宽度和终端设备支持的最大下行频谱宽度，确定终端设备支持的最大下行频谱宽度小于最大占用频谱宽度，并从第一频段的至少一个第一类型的Intra-band NC CA组合中确定频谱宽度小于或等于最大下行频谱宽度的至少一个第二可用CA组合，根据至少一个第二可用CA组合，确定第一CA组合；至少一个第二可用CA组合包括第一CA组合。
在本发明的另一种实现方式中，上述处理器32，用于根据最大占用频谱宽度和终端设备支持的最大下行频谱宽度，确定第一CA组合，具体可以为：
上述处理器32，具体可以用于根据最大占用频谱宽度和终端设备支持的 最大下行频谱宽度，确定终端设备支持的最大下行频谱宽度大于或等于最大占用频谱宽度，并从至少一个第一类型的Intra-band NC CA组合中确定第一CA组合。
本发明实施例提供的下行数据传输装置，可以执行上述方法实施例，其实现原理和技术效果类似，在此不再赘述。
图11为本发明实施例提供的下行数据传输装置实施例四的结构示意图，如图11所示，该下行数据传输装置可以为终端设备，该下行数据传输装置可以包括：发送器41；其中，发送器41可以集成在终端设备的收发信机中，也可以为终端设备上独立的收发天线。
发送器41，用于向网络设备发送载波聚合CA能力指示信息；CA能力指示信息用于向网络设备指示终端设备在第一频段支持第一类型的带内非连续载波聚合Intra-band NC CA组合，以及，终端设备支持的最大下行频谱宽度。以LAA-LTE***为例，上述第一频段可以为Band 39、Band 40、Band 41、LAA频段(即Band46)等中的任一频段。
本发明实施例提供的下行数据传输装置，可以执行上述方法实施例，其实现原理和技术效果类似，在此不再赘述。
可选的，在本发明的一种实现方式中，上述发送器41，具体可以用于向网络设备发送携带有CA能力指示信息的终端设备能力信息。
继续参照图11，如图11所示，进一步地，上述装置还可以包括：
处理器42，用于在发送器41向网络设备发送载波聚合CA能力指示信息之前，获取终端设备支持的最大下行频谱宽度。
则在本发明的一种实现方式中，上述处理器42，具体可以用于根据终端设备的低噪声放大器LNA的性能，确定终端设备支持的最大下行频谱宽度。
本发明实施例提供的下行数据传输装置，可以执行上述方法实施例，其实现原理和技术效果类似，在此不再赘述。
正如上述实施例，本发明实施例涉及的终端设备可以是手机、平板电脑等无线终端，因此，以终端设备为手机为例：图12为本发明实施例提供的终端设备为手机时的部分结构的框图。参考图12，该手机可以包括：射频(Radio Frequency，RF)电路1110、存储器1120、输入单元1130、显示单元1140、传感器1150、音频电路1160、无线保真(wireless fidelity，WiFi)模块1170、 处理器1180、以及电源1190等部件。本领域技术人员可以理解，图12中示出的手机结构并不构成对手机的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
下面结合图12对手机的各个构成部件进行具体的介绍：
RF电路1110可用于收发信息或通话过程中，信号的接收和发送，特别地，将基站的下行信息接收后，给处理器1180处理；另外，将上行的数据发送给基站。通常，RF电路包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器(Low Noise Amplifier，LNA)、双工器等。此外，RF电路1110还可以通过无线通信与网络和其他设备通信。上述无线通信可以使用任一通信标准或协议，包括但不限于全球移动通讯***(Global System of Mobile communication，GSM)、通用分组无线服务(General Packet Radio Service，GPRS)、码分多址(Code Division Multiple Access，CDMA)、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)、长期演进(Long Term Evolution,LTE))、电子邮件、短消息服务(Short Messaging Service，SMS)等。
存储器1120可用于存储软件程序以及模块，处理器1180通过运行存储在存储器1120的软件程序以及模块，从而执行手机的各种功能应用以及数据处理。存储器1120可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作***、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器1120可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
输入单元1130可用于接收输入的数字或字符信息，以及产生与手机的用户设置以及功能控制有关的键信号输入。具体地，输入单元1130可包括触控面板1131以及其他输入设备1132。触控面板1131，也称为触摸屏，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板1131上或在触控面板1131附近的操作)，并根据预先设定的程式驱动相应的连接装置。可选的，触控面板1131可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测 触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器1180，并能接收处理器1180发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板1131。除了触控面板1131，输入单元1130还可以包括其他输入设备1132。具体地，其他输入设备1132可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆等中的一种或多种。
显示单元1140可用于显示由用户输入的信息或提供给用户的信息以及手机的各种菜单。显示单元1140可包括显示面板1141，可选的，可以采用液晶显示器(Liquid Crystal Display，LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板1141。进一步的，触控面板1131可覆盖于显示面板1141之上，当触控面板1131检测到在其上或附近的触摸操作后，传送给处理器1180以确定触摸事件的类型，随后处理器1180根据触摸事件的类型在显示面板1141上提供相应的视觉输出。虽然在图12中，触控面板1131与显示面板1141是作为两个独立的部件来实现手机的输入和输入功能，但是在某些实施例中，可以将触控面板1131与显示面板1141集成而实现手机的输入和输出功能。
手机还可包括至少一种传感器1150，比如光传感器、运动传感器以及其他传感器。具体地，光传感器可包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板1141的亮度，光传感器可在手机移动到耳边时，关闭显示面板1141和/或背光。作为运动传感器的一种，加速度传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别手机姿态的应用(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；至于手机还可配置的陀螺仪、气压计、湿度计、温度计、红外线传感器等其他传感器，在此不再赘述。
音频电路1160、扬声器1161以及传声器1162可提供用户与手机之间的音频接口。音频电路1160可将接收到的音频数据转换后的电信号，传输到扬声器1161，由扬声器1161转换为声音信号输出；另一方面，传声器1162将收集的声音信号转换为电信号，由音频电路1160接收后转换为音频数据，再 将音频数据输出处理器1180处理后，经RF电路1110以发送给比如另一手机，或者将音频数据输出至存储器1120以便进一步处理。
WiFi属于短距离无线传输技术，手机通过WiFi模块1170可以帮助用户收发电子邮件、浏览网页和访问流式媒体等，它为用户提供了无线的宽带互联网访问。虽然图12示出了WiFi模块1170，但是可以理解的是，其并不属于手机的必须构成，完全可以根据需要在不改变发明的本质的范围内而省略。
处理器1180是手机的控制中心，利用各种接口和线路连接整个手机的各个部分，通过运行或执行存储在存储器1120内的软件程序和/或模块，以及调用存储在存储器1120内的数据，执行手机的各种功能和处理数据，从而对手机进行整体监控。可选的，处理器1180可包括一个或多个处理单元；优选的，处理器1180可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作***、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器1180中。
手机还包括给各个部件供电的电源1190(比如电池)，优选的，电源可以通过电源管理***与处理器1180逻辑相连，从而通过电源管理***实现管理充电、放电、以及功耗管理等功能。
手机还可以包括摄像头1200，该摄像头可以为前置摄像头，也可以为后置摄像头。尽管未示出，手机还可以包括蓝牙模块、GPS模块等，在此不再赘述。
在本发明实施例中，该手机所包括的处理器1180可以用于执行上述下行数据传输方法的方法实施例，其实现原理和技术效果类似，在此不再赘述。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (33)

  1. 一种下行数据传输方法，其特征在于，所述方法包括：
    网络设备接收终端设备发送的载波聚合CA能力指示信息；所述CA能力指示信息用于向所述网络设备指示所述终端设备在第一频段支持第一类型的带内非连续载波聚合Intra-band NC CA组合，以及，所述终端设备支持的最大下行频谱宽度；
    所述网络设备根据所述CA能力指示信息，从所述第一频段的至少一个第一类型的Intra-band NC CA组合中确定第一CA组合，所述第一CA组合包括至少两个成员载波CC；
    所述网络设备通过所述第一CA组合向所述终端设备发送下行数据。
  2. 根据权利要求1所述的方法，其特征在于，所述网络设备根据所述CA能力指示信息，从所述第一频段的至少一个第一类型的Intra-band NC CA组合中确定第一CA组合，具体包括：
    所述网络设备根据每个所述第一类型的Intra-band NC CA组合占用的频谱宽度，确定最大占用频谱宽度；
    所述网络设备根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述第一CA组合。
  3. 根据权利要求2所述的方法，其特征在于，所述网络设备根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述第一CA组合，具体包括：
    所述网络设备根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述终端设备支持的最大下行频谱宽度小于所述最大占用频谱宽度；
    所述网络设备从所述第一频段的至少一个第一类型的Intra-band NC CA组合中确定频谱宽度小于或等于所述最大下行频谱宽度的至少一个第二可用CA组合；
    所述网络设备根据所述至少一个第二可用CA组合，确定所述第一CA组合；所述至少一个第二可用CA组合包括所述第一CA组合。
  4. 根据权利要求2所述的方法，其特征在于，所述网络设备根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述第一CA 组合，具体包括：
    所述网络设备根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述终端设备支持的最大下行频谱宽度大于或等于所述最大占用频谱宽度；
    所述网络设备从所述至少一个第一类型的Intra-band NC CA组合中确定所述第一CA组合。
  5. 根据权利要求1-4任一项所述的方法，其特征在于，所述网络设备接收终端设备发送的CA能力指示信息，包括：
    所述网络设备接收所述终端设备发送的终端设备能力信息；所述终端设备能力信息包括所述CA能力指示信息。
  6. 根据权利要求1-5任一项所述的方法，其特征在于，所述第一频段为授权频谱辅助接入LAA频段。
  7. 一种下行数据传输方法，其特征在于，所述方法包括：
    终端设备向网络设备发送载波聚合CA能力指示信息；所述CA能力指示信息用于向所述网络设备指示所述终端设备在第一频段支持第一类型的带内非连续载波聚合Intra-band NC CA组合，以及，所述终端设备支持的最大下行频谱宽度。
  8. 根据权利要求7所述的方法，其特征在于，所述终端设备向网络设备发送载波聚合CA能力指示信息之前，所述方法还包括：
    所述终端设备获取所述终端设备支持的最大下行频谱宽度。
  9. 根据权利要求8所述的方法，其特征在于，所述终端设备获取所述终端设备支持的最大下行频谱宽度，具体包括：
    所述终端设备根据所述终端设备的低噪声放大器LNA的性能，确定所述终端设备支持的最大下行频谱宽度。
  10. 根据权利要求7-9任一项所述的方法，其特征在于，所述终端设备向网络设备发送载波聚合CA能力指示信息，具体包括：
    所述终端设备向所述网络设备发送终端设备能力信息；所述终端设备能力信息包括所述CA能力指示信息。
  11. 根据权利要求7-10任一项所述的方法，其特征在于，所述第一频段为授权频谱辅助接入LAA频段。
  12. 一种下行数据传输装置，其特征在于，所述装置包括：
    接收模块，用于接收终端设备发送的载波聚合CA能力指示信息；所述CA能力指示信息用于向网络设备指示所述终端设备在第一频段支持第一类型的带内非连续载波聚合Intra-band NC CA组合，以及，所述终端设备支持的最大下行频谱宽度；
    确定模块，用于根据所述接收模块接收到的所述CA能力指示信息，从所述第一频段的至少一个第一类型的Intra-band NC CA组合中确定第一CA组合，所述第一CA组合包括至少两个成员载波CC；
    发送模块，用于通过所述确定模块确定的所述第一CA组合向所述终端设备发送下行数据。
  13. 根据权利要求12所述的装置，其特征在于，所述确定模块，具体用于根据每个所述第一类型的Intra-band NC CA组合占用的频谱宽度，确定最大占用频谱宽度，并根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述第一CA组合。
  14. 根据权利要求13所述的装置，其特征在于，所述确定模块，用于根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述第一CA组合，具体为：
    所述确定模块，具体用于根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述终端设备支持的最大下行频谱宽度小于所述最大占用频谱宽度，并从所述第一频段的至少一个第一类型的Intra-band NC CA组合中确定频谱宽度小于或等于所述最大下行频谱宽度的至少一个第二可用CA组合，根据所述至少一个第二可用CA组合，确定所述第一CA组合；所述至少一个第二可用CA组合包括所述第一CA组合。
  15. 根据权利要求13所述的装置，其特征在于，所述确定模块，用于根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述第一CA组合，具体为：
    所述确定模块，具体用于根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述终端设备支持的最大下行频谱宽度大于或等于所述最大占用频谱宽度，并从所述至少一个第一类型的Intra-band NC CA组合中确定所述第一CA组合。
  16. 根据权利要求12-15任一项所述的装置，其特征在于，所述接收模块，具体用于接收所述终端设备发送的终端设备能力信息；所述终端设备能力信息包括所述CA能力指示信息。
  17. 根据权利要求12-16任一项所述的装置，其特征在于，所述第一频段为授权频谱辅助接入LAA频段。
  18. 一种下行数据传输装置，其特征在于，所述装置包括：
    发送模块，用于向网络设备发送载波聚合CA能力指示信息；所述CA能力指示信息用于向所述网络设备指示所述终端设备在第一频段支持第一类型的带内非连续载波聚合Intra-band NC CA组合，以及，所述终端设备支持的最大下行频谱宽度。
  19. 根据权利要求18所述的装置，其特征在于，所述装置还包括：
    获取模块，用于在所述发送模块向网络设备发送载波聚合CA能力指示信息之前，获取所述终端设备支持的最大下行频谱宽度。
  20. 根据权利要求19所述的装置，其特征在于，所述获取模块，具体用于根据所述终端设备的低噪声放大器LNA的性能，确定所述终端设备支持的最大下行频谱宽度。
  21. 根据权利要求18-20任一项所述的装置，其特征在于，所述发送模块，具体用于向所述网络设备发送终端设备能力信息；所述终端设备能力信息包括所述CA能力指示信息。
  22. 根据权利要求18-21任一项所述的装置，其特征在于，所述第一频段为授权频谱辅助接入LAA频段。
  23. 一种下行数据传输装置，其特征在于，所述装置包括：
    接收器，用于接收终端设备发送的载波聚合CA能力指示信息；所述CA能力指示信息用于向网络设备指示所述终端设备在第一频段支持第一类型的带内非连续载波聚合Intra-band NC CA组合，以及，所述终端设备支持的最大下行频谱宽度；
    处理器，用于根据所述接收器接收到的所述CA能力指示信息，从所述第一频段的至少一个第一类型的Intra-band NC CA组合中确定第一CA组合，所述第一CA组合包括至少两个成员载波CC；
    发送器，用于通过所述处理器确定的所述第一CA组合向所述终端设备 发送下行数据。
  24. 根据权利要求23所述的装置，其特征在于，
    所述处理器，具体用于根据每个所述第一类型的Intra-band NC CA组合占用的频谱宽度，确定最大占用频谱宽度，并根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述第一CA组合。
  25. 根据权利要求24所述的装置，其特征在于，所述处理器，用于根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述第一CA组合，具体为：
    所述处理器，具体用于根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述终端设备支持的最大下行频谱宽度小于所述最大占用频谱宽度，并从所述第一频段的至少一个第一类型的Intra-band NC CA组合中确定频谱宽度小于或等于所述最大下行频谱宽度的至少一个第二可用CA组合，根据所述至少一个第二可用CA组合，确定所述第一CA组合；所述至少一个第二可用CA组合包括所述第一CA组合。
  26. 根据权利要求24所述的装置，其特征在于，所述处理器，用于根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述第一CA组合，具体为：
    所述处理器，具体用于根据所述最大占用频谱宽度和所述终端设备支持的最大下行频谱宽度，确定所述终端设备支持的最大下行频谱宽度大于或等于所述最大占用频谱宽度，并从所述至少一个第一类型的Intra-band NC CA组合中确定所述第一CA组合。
  27. 根据权利要求23-26任一项所述的装置，其特征在于，所述接收器，具体用于接收所述终端设备发送的终端设备能力信息；所述终端设备能力信息包括所述CA能力指示信息。
  28. 根据权利要求23-27任一项所述的装置，其特征在于，所述第一频段为授权频谱辅助接入LAA频段。
  29. 一种下行数据传输装置，其特征在于，所述装置包括：
    发送器，用于向网络设备发送载波聚合CA能力指示信息；所述CA能力指示信息用于向所述网络设备指示所述终端设备在第一频段支持第一类型的带内非连续载波聚合Intra-band NC CA组合，以及，所述终端设备支持的 最大下行频谱宽度。
  30. 根据权利要求29所述的装置，其特征在于，所述装置还包括：
    处理器，用于在所述发送器向网络设备发送载波聚合CA能力指示信息之前，获取所述终端设备支持的最大下行频谱宽度。
  31. 根据权利要求30所述的装置，其特征在于，所述处理器，具体用于根据所述终端设备的低噪声放大器LNA的性能，确定所述终端设备支持的最大下行频谱宽度。
  32. 根据权利要求29-31任一项所述的装置，其特征在于，所述发送器，具体用于向所述网络设备发送终端设备能力信息；所述终端设备能力信息包括所述CA能力指示信息。
  33. 根据权利要求29-32任一项所述的装置，其特征在于，所述第一频段为授权频谱辅助接入LAA频段。
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