WO2012146118A1 - Ack/nack反馈信息的传输方法和设备 - Google Patents

Ack/nack反馈信息的传输方法和设备 Download PDF

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Publication number
WO2012146118A1
WO2012146118A1 PCT/CN2012/073365 CN2012073365W WO2012146118A1 WO 2012146118 A1 WO2012146118 A1 WO 2012146118A1 CN 2012073365 W CN2012073365 W CN 2012073365W WO 2012146118 A1 WO2012146118 A1 WO 2012146118A1
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Prior art keywords
pdcch
downlink
ack
dai
terminal device
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PCT/CN2012/073365
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English (en)
French (fr)
Inventor
高雪娟
沈祖康
林亚男
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电信科学技术研究院
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Publication of WO2012146118A1 publication Critical patent/WO2012146118A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055Physical resource allocation for ACK/NACK
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829Arrangements specially adapted for the receiver end
    • H04L1/1854Scheduling and prioritising arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829Arrangements specially adapted for the receiver end
    • H04L1/1861Physical mapping arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L2001/125Arrangements for preventing errors in the return channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/06Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and a device for transmitting ACK/NACK feedback information. Background technique
  • LTE-A Long Term Evolution Advanced
  • LTE Long Term Evolution Advanced
  • LTE Long Term Evolution Advanced
  • LTE Long Term Evolution Advanced
  • it may be a spectrum that directly allocates 100M bandwidth.
  • one may be a carrier aggregation (CA) technology, which is to be allocated to existing systems to aggregate some spectrum and make a large bandwidth for LTE-A multi-carrier system.
  • CA carrier aggregation
  • the uplink and downlink carriers can be asymmetrically configured, that is, the user may occupy N > 1 carrier for downlink transmission, and M > 1 carrier for uplink transmission, as shown in FIG. 2 .
  • the LTE-A system is currently configured to support up to five carriers for aggregation.
  • One LTE-A UE User Equipment, user equipment, ie, terminal equipment
  • ACK acknowledgement
  • NACK Negative ACKnowledgement
  • the UE will feed back the ACK/NACK feedback information corresponding to the data on the downlink subframe nk on the plurality of downlink carriers in the uplink subframe n, k K, the value of the set, the uplink and downlink configuration of the system, and the specific subframe number.
  • Table 1 Relevant, as shown in Table 1.
  • a new PUCCH (Physical Uplink Control Channel) format 3 scheme is defined as a multiplexing transmission scheme of multi-bit ACK/NACK feedback information.
  • Maximum transmission bit of the PUCCH format 3 transmission scheme The number is 20 bits.
  • the UE determines the number of bits of the ACK/NACK feedback information based on the configured downlink carrier and the transmission mode of each downlink carrier.
  • the M may not include the sub-subframe.
  • the UE does not feed back ACK/NACK feedback information for the subframe.
  • the UE that uses the physical uplink control channel PUCCH format 3 to transmit ACK/NACK is configured, and the base station configures four PUCCH formats for semi-statically in advance through high-layer signaling.
  • the 3 channel resource dynamically indicates, by using the downlink control channel PDCCH (Physical Downlink Control Channel), which channel resource is used by the UE to transmit the PUCCH.
  • PDCCH Physical Downlink Control Channel
  • the PDCCH corresponding to the PDSCH Physical Downlink Shared Channel
  • the indication downlink SPS Se The TPC (Transmit Power Control) field in the PDCCH of the -persistant Scheduling, semi-persistent resource release is used to carry the power control command, corresponding to the TPC field (2 bits) in the PDCCH of the PDSCH transmitted on the downlink secondary carrier.
  • the RRC (ACK/NACK Resource Indicator) is used to indicate a PUCCH format 3 channel resource configured for use by the UE, where the channel resource is one of four groups of PUCCH format 3 channel resources pre-configured by the upper layer. And the ARI in the same should indicate the same resource.
  • the channel resource is one of four groups of PUCCH format 3 channel resources pre-configured by the upper layer.
  • the ARI in the same should indicate the same resource.
  • For single-port transmission there is only one format 3 resource in a group.
  • a group includes two format 3 resources, which correspond to different antenna ports. If the UE only receives data (PDSCH or PDCCH indicating downlink SPS resource release) on the downlink primary carrier, the UE cannot obtain the PUCCH format 3 channel resource because the TPC in the PDCCH scheduling the data carries the power control command instead of the ARI.
  • the ACK/NACK feedback information cannot be transmitted using the PUCCH format 3 transmission scheme.
  • the UE can only transmit ACK/NACK on the PUCCH format la/lb resource using the PUCCH format la/lb or channel selection (channel selection) transmission scheme. Feedback.
  • the base station needs to be in PUCCH format 3 and PUCCH format la/lb. A blind check is performed on the channel resource to determine which transmission scheme the UE adopts, so as to correctly obtain the ACK/NACK feedback information sent by the UE.
  • the base station may also configure the UE to use the PUCCH format 3 to transmit multi-bit ACK/NACK feedback information, since there is no need to space the ACK/NACK feedback information on the single carrier at this time.
  • Convergence Spatial Bundling
  • the TPC field in the PDCCH with the DAI (Downlink Assignment Index) value of 1 on the downlink carrier (ie, the downlink primary carrier) is used for the power control signaling, and the DAI value is greater than
  • the TPC field (2 bits) in the PDCCH of 1 is used as an ARI, indicating a PUCCH format 3 channel resource configured for use by the UE, and the channel resource is an ARI in one of the 4 groups of PUCCH format 3 channel resources pre-configured by the upper layer.
  • the same resources should be indicated. For single-port transmission, there is only one format 3 resource in a group, and for multi-port (2-port) transmission, two in a group The format 3 resources correspond to different antenna ports.
  • the UE feeds back the ACK/NACK feedback information corresponding to the SPS PDSCH on the PUCCH resource configured by the upper layer. If the UE receives only the PDCCH with the DAI value of 1 in the feedback window, the UE feeds back the ACK/NACK feedback information on the Rel-8 resource corresponding to the PDCCH.
  • the UE uses the PUCCH format 3 scheme to transmit ACK/NACK feedback information, if the data is received only on the downlink primary carrier, the UE cannot The PUCCH format 3 channel resource is obtained.
  • the ACK/NACK feedback information cannot be transmitted in the PUCCH format 3 scheme.
  • the PUCCH format la/lb or channel selection scheme can only be used to transmit ACK/NACK feedback information on the PUCCH format la/lb resource, which affects the ACK. /NACK Transmission reliability and efficiency.
  • the embodiment of the present invention provides a method and a device for transmitting ACK/NACK feedback information, which can solve the problem that the terminal device configured with multiple downlink carriers can only adopt the PUCCH format 3 scheme when receiving data on the downlink primary carrier in the prior art.
  • an embodiment of the present invention provides a method for transmitting ACK/NACK feedback information, including:
  • a terminal device configured with multiple downlink carriers receives data in M downlink subframes of N downlink carriers, where N > 1 , 1 ⁇ M ⁇ 4, and ACK corresponding to data in the M downlink subframes /NACK feedback information is transmitted in the same uplink subframe;
  • the terminal device Determining, by the terminal device, the PUCCH format 3 channel resource according to the information carried in the ACK/NACK resource indication field in the received PDCCH, where the PDCCH includes the PDCCH and the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1.
  • the PDCCH indicating that the downlink SPS resource is released, and the corresponding value of the DAI is greater than 1.
  • the terminal device adopts the determined PUCCH format 3 channel resource
  • the PUCCH format 3 scheme transmits ACK/NACK feedback information.
  • the embodiment of the present invention further provides a terminal device, including: a receiving module, configured to be used in N downlink carriers of the configured multiple downlink carriers.
  • the M downlink subframes receive data, where N > 1 , 1 ⁇ M ⁇ 4, and the ACK/NACK feedback information corresponding to the data in the M downlink subframes is transmitted in the same uplink subframe;
  • a determining module configured to determine a PUCCH format 3 channel resource according to the information carried in the ACK/NACK resource indication field in the PDCCH received by the receiving module, where the PDCCH includes a corresponding downlink primary carrier with a value of DAI greater than 1. a PDCCH indicating that the PDCCH and the DAI of the PDSCH transmission are greater than 1 and a PDCCH indicating the release of the downlink SPS resource, and a PDCCH corresponding to the PDSCH transmission on the downlink secondary carrier;
  • a sending module configured to transmit ACK/NACK feedback information by using a PUCCH format 3 scheme on the PUCCH format 3 channel resource determined by the determining module.
  • an embodiment of the present invention further provides a method for transmitting ACK/NACK feedback information, including:
  • the eNB sends the determined PUCCH format 3 channel resource in the ACK/NACK resource indication field of the PDCCH to the terminal device, where the PDCCH includes the PDSCH on the corresponding downlink primary carrier whose value of the DAI is greater than 1.
  • the PDCCH of the transmitted PDCCH and the DAI whose value is greater than 1 indicates the PDCCH released by the downlink SPS resource, and the PDCCH corresponding to the PDSCH transmission on the downlink secondary carrier;
  • the base station receives the ACK/NACK feedback information sent by the terminal device by using the PUCCH format 3 scheme in the determined PUCCH format 3 channel resource.
  • an embodiment of the present invention further provides a base station, including:
  • a configuration module configured to determine a PUCCH format 3 channel resource configured for a terminal device configured with multiple downlink carriers
  • a sending module configured to send the PUCCH format 3 channel resource determined by the configuration module to the terminal device in an ACK/NACK resource indication field of the PDCCH, where the PDCCH includes a corresponding value of the DAI greater than 1.
  • the PDCCH and the DAI of the PDSCH transmission on the downlink primary carrier are greater than 1 and the PDCCH indicating the downlink SPS resource release, and the PDCCH corresponding to the PDSCH transmission on the downlink secondary carrier;
  • the receiving module is configured to receive, according to the PUCCH format 3 channel resource determined by the configuration module, the AC ACK feedback information sent by the terminal device by using a PUCCH format 3 scheme.
  • the PDCCH in the corresponding downlink subcarrier with the DAI value greater than 1 and/or the PDCCH indicating the downlink SPS resource release, and the PDCCH in the PDSCH transmission on the downlink secondary carrier may be implemented by using the technical solution of the embodiment of the present invention.
  • the information in the ACK/NACK resource indication field indicates the PUCCH format 3 channel resource, so that when the terminal device configured with multiple downlink carriers receives data only on the downlink primary carrier, the PUCCH format 3 scheme can also be used to transmit ACK/NACK feedback.
  • the information thereby avoiding inconsistent understanding between the base station and the terminal device for the transmission scheme of the ACK/NACK feedback information, improves the reliability and efficiency of the ACK/NACK feedback information transmission.
  • FIG. 1 is a schematic diagram of a single frequency language system in the prior art
  • FIG. 2 is a schematic diagram of a spectrum aggregation system in the prior art
  • FIG. 3 is a schematic flowchart of a method for transmitting ACK/NACK feedback information according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of a method for transmitting ACK/NACK feedback information according to an embodiment of the present invention
  • FIG. 5 is a schematic flowchart of a method for transmitting ACK/NACK feedback information in a specific application scenario according to an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart of a method for transmitting ACK/NACK feedback information in a specific application scenario according to an embodiment of the present disclosure
  • FIG. 7 is a schematic flowchart of a method for transmitting ACK/NACK feedback information in a specific application scenario according to an embodiment of the present disclosure
  • FIG. 8 is a schematic flowchart of a method for transmitting ACK/NACK feedback information in a specific application scenario according to an embodiment of the present disclosure
  • FIG. 9 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present invention. detailed description
  • PUCCH format 3 can be used to transmit multi-bit ACK/NACK feedback information.
  • a terminal device is configured with multiple downlink carriers, but only receives data on the downlink primary carrier, how to transmit ACK/NACK feedback information using PUCCH format 3 has no clear solution.
  • the embodiment of the present invention provides that the PUCCH format 3 channel resource is indicated by the information in the ACK/NACK resource indication field in the PDCCH, so that the PUCCH format3 is used to transmit multiple bits between the terminal device and the base station.
  • the ACK/NACK feedback information method can transmit ACK/NACK feedback information using PUCCH format 3 even when the terminal device receives data transmission only on the downlink primary carrier.
  • FIG. 3 is a schematic flowchart of a method for transmitting ACK/NACK feedback information according to an embodiment of the present invention, where the method specifically includes the following steps:
  • Step S301 The terminal device configured with multiple downlink carriers receives data in M downlink subframes of the N downlink carriers.
  • N 1 , 1 ⁇ M ⁇ 4, and the ACK/NACK feedback information corresponding to the data in the M downlink subframes is transmitted in the same uplink subframe.
  • Step S302 The terminal device determines, according to information carried in the ACK/NACK resource indication field in the received PDCCH, a PUCCH format 3 channel resource.
  • the PDCCH includes a PDCCH indicating that the PDCCH and the DAI of the PDSCH transmission on the corresponding downlink primary carrier whose value is greater than 1 and the PDCCH indicating that the downlink SPS resource is released, and the PDCCH corresponding to the PDSCH transmission on the downlink secondary carrier. That is, the PDCCH can be divided into two types, one is a PDSCH transmission on a corresponding downlink primary carrier whose value of DAI is greater than 1 and/or a PDCCH indicating downlink SPS resource release, and the other is a PDCCH corresponding to PDSCH transmission on a downlink secondary carrier.
  • the PDCCH corresponding to the downlink primary carrier and the PDCCH indicating the release of the downlink SPS resource with the value of the DAI greater than 1 includes one or more of the following information:
  • the determining process for the PUCCH format 3 channel resource in this step includes the following two Ways.
  • the PUCCH format 3 channel resource indicated by the ACK/NACK resource indication field in the PDCCH corresponding to the downlink SPS with the DAI value greater than 1 and the PDCCH/NACK resource indication field in the PDCCH indicating the release of the downlink SPS resource is used.
  • the PUCCH format 3 channel resource is indicated in the same manner as the PUCCH format 3 channel resource indicated by the ACK/NACK resource indication field in the PDCCH of the PDSCH transmission on the downlink secondary carrier.
  • the PUCCH format 3 channel resource is determined according to the ACK/NACK resource indication field in the PDCCH, and needs to be determined according to the corresponding information receiving situation.
  • the specific description is as follows:
  • the terminal device receives downlink data only on the downlink primary carrier, and the downlink data includes at least one downlink primary carrier corresponding to the PDCCH whose value of the DAI is greater than 1.
  • the terminal device determines the PUCCH format 3 channel resource according to the information carried in the ACK/NACK resource indication field in the PDCCH whose value of the DAI is greater than 1.
  • the terminal device When the terminal device receives the PDSCH corresponding to the PDCCH on the downlink secondary carrier (in this case, the UE only receives data on the downlink secondary carrier, or the UE receives the downlink secondary carrier and the downlink primary carrier).
  • Data, wherein the data reception condition on the downlink primary carrier can be further divided into a PDSCH transmission on a downlink primary carrier corresponding to a PDCCH having a DAI value greater than 1 and/or a PDCCH indicating a downlink SPS resource release greater than 1 in a DAI value.
  • the terminal device determines, according to information carried in the ACK/NACK resource indication field in the PDCCH corresponding to the PDSCH transmission on the downlink secondary carrier, the PUCCH format 3 channel resource; if the terminal device receives the downlink primary carrier simultaneously Downstream data, and the downlink data includes at least one PDSCH transmission on the downlink primary carrier corresponding to the PDCCH whose value of the DAI is greater than 1 and/or the PDCCH indicating that the downlink SPS resource is released, and the terminal device is based on the DAI.
  • the PDCCH with a value greater than 1 and the ACK/NACK resource in the PDCCH corresponding to the PDSCH transmission on the downlink secondary carrier The information carried in the indication domain determines the PUCCH format 3 channel resource.
  • the PDCCH with the DAI value greater than 1 includes the PDCCH and the DAI of the PDSCH transmitted on the corresponding downlink primary carrier whose value of the DAI is greater than 1.
  • a PDCCH indicating that the downlink SPS resource is released a PUCCH format 3 channel resource indicated by the ACK/NACK resource indication field in the PDCCH whose value is greater than 1, and an ACK/NACK in the PDCCH corresponding to the PDSCH transmission on the corresponding downlink secondary carrier
  • the PUCCH format 3 channel resources indicated by the resource indication field are the same.
  • the terminal device determines the ACK/NACK feedback information according to the configured downlink carrier and the transmission mode of each configured downlink carrier.
  • the foregoing scenario (1) and (2) are combined and described, that is, when the terminal device receives only the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource on the downlink primary carrier, and receives the value of the DAI.
  • the terminal device receives the PDSCH transmission on the downlink primary carrier is greater than 1, and/or the PDCCH indicating the release of the downlink SPS resource is received, or when the terminal device receives the PDSCH on the downlink secondary carrier, the terminal device according to the corresponding downlink primary carrier whose value of the DAI is greater than 1.
  • the PUCCH format 3 channel resource is determined by the PDSCH transmission and/or the PDCCH indicating the release of the downlink SPS resource, and/or the information in the ACK/NACK resource indication field in any of the PDCCHs corresponding to the PDSCH transmission on the downlink secondary carrier.
  • the PUCCH format 3 channel resource may also be determined according to the following information receiving situation, which is specifically described as follows. (1) When the terminal device receives only the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource on the downlink primary carrier, and receives the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1, and/or indicates the downlink SPS resource.
  • the terminal device determines the PUCCH according to the information in the ACK/NACK resource indication field in the PDCCH in the PDCCH in the PDCCH corresponding to the DSI whose value is greater than 1 and the PDCCH in the PDCCH indicating the release of the downlink SPS resource. Format 3 channel resources.
  • the terminal device determines the PUCCH format 3 channel according to the information in the ACK/NACK resource indication field in any PDCCH in the PDCCH corresponding to the PDSCH transmission on the downlink secondary carrier. Resources.
  • the terminal device when the terminal device receives the PDSCH on the downlink primary carrier and/or the PDCCH indicating the release of the downlink SPS resource, and the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1, and/or the PDCCH indicating the release of the downlink SPS resource, And when the PDSCH is received on the downlink secondary carrier, the terminal device is configured according to the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1 and/or the PDCCH indicating the release of the downlink SPS resource, and the PDCCH in the PDSCH transmission on the corresponding downlink secondary carrier.
  • the information in the ACK/NACK resource indication field in any one of the PDCCHs determines the PUCCH format 3 channel resource.
  • the PDCCH of the two types of PDCCHs (the PDSCH transmission on the corresponding downlink primary carrier whose DAI value is greater than 1 and/or the PDCCH indicating the downlink SPS resource release, and the PDCCH corresponding to the PDSCH transmission on the downlink secondary carrier)
  • the NACK resource indicates that the information content in the domain is the same. Therefore, the PUCCH format 3 channel resources determined by the terminal device are the same regardless of the type of PDCCH/NACK resource indication information of the PDCCH applied.
  • the PUCCH format 3 channel resources are determined according to the corresponding PDCCH after ensuring that the PDCCH is received, and the above (1) to (3) may be combined to correspond to the same PUCCH format 3 resource determination situation.
  • the information of the ACK/NACK resource indication domain in each PDCCH should indicate the same PUCCH format 3 channel resource. Therefore, in this mode, the terminal device adopts the above two types of PDCCH.
  • the format 3 channel resources are the same.
  • the terminal device may consider that the current scheduling has an error, and does not perform ACK/NACK feedback information transmission, or may select one type of PDCCH.
  • the ACK/NACK resource indicates that the PUCCH format 3 channel resource indicates the transmission of the ACK/NACK feedback information, and such a change does not affect the protection scope of the embodiment of the present invention.
  • the terminal device determines the ACK/NACK feedback information according to the configured downlink carrier and the transmission mode of each configured downlink carrier, in the scenario of (1) to (3) above.
  • the terminal device produces
  • the number of generated ACK/NACK feedback bits is: the terminal device generates ACK/NACK feedback information according to the transmission mode for each downlink subframe on each downlink carrier, and each downlink subframe on the downlink carrier in the multi-codeword transmission mode. Generating 2-bit ACK/NACK feedback information corresponding to each codeword, respectively generating 1-bit ACK/NACK feedback information for each downlink subframe on the downlink carrier of the single-codeword transmission mode, and multi-code for not receiving data
  • the downlink subframe on the downlink carrier of the word transmission mode generates a 2-bit NACK as feedback information, and generates a 1-bit NACK as a feedback information for the downlink subframe on the downlink carrier of the single-codeword transmission mode in which no data is received; when the PUCCH format is exceeded When the maximum number of transmission bits of 3 is 20 bits, the ACK/NACK feedback information of the multi-codeword needs to be null. Inter-merging, at this time, the terminal device pairs multiple codewords in the same downlink sub
  • the ACK/NACK feedback information is logically AND operated (i.e., spatially combined), that is, 1 bit ACK/NACK feedback information is generated for each downlink subframe on each downlink carrier.
  • the PUCCH format 3 channel resource indicated by the ACK/NACK resource indication field in the PDCCH corresponding to the downlink SPS with the value of the DAI greater than 1 is used, and the corresponding channel is indicated by the ACK/NACK resource indication field in the PDCCH indicating the release of the downlink SPS resource.
  • the manner in which the PUCCH format 3 channel resource indicated by the ACK/NACK resource indication field in the PDCCH of the PDSCH transmission on the downlink secondary carrier is different indicates the PUCCH format 3 channel resource.
  • the PUCCH format 3 channel resource is determined according to the ACK/NACK resource indication field in the PDCCH, and needs to be determined according to the corresponding information receiving situation, which is specifically described as follows.
  • the terminal device receives the downlink data only on the downlink primary carrier, and the downlink data includes at least one PDSCH transmission on the downlink primary carrier corresponding to the PDCCH whose value of the DAI is greater than 1, and/or the value of the DAI is greater than 1.
  • the terminal device determines the PUCCH format 3 channel resource according to the information carried in the ACK/NACK resource indication field in the PDCCH whose value of the DAI is greater than 1; specifically, when the terminal device is only in the downlink primary carrier Receiving the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource, and receiving the PDCCH on the corresponding downlink primary carrier with the value of the DAI greater than 1, and/or the PDCCH indicating the release of the downlink SPS resource, the terminal device according to the DAI
  • the PUCCH format 3 channel resource is determined by the information in the ACK/NACK resource indication field in the PDCCH in the PDCCH corresponding to the PDSCH transmission and/or the downlink SPS resource release indicating that the value is greater than 1.
  • the terminal device determines ACK/NACK feedback information only for the downlink primary carrier according to the transmission mode of the downlink primary carrier, so as to improve the transmission efficiency and performance of the ACK/NACK feedback information.
  • the terminal device may perform spatial combining on the ACK/NACK feedback information of the multiple codewords in the same downlink subframe on the downlink primary carrier, to High ACK/NACK transmission efficiency to avoid unnecessary system retransmissions.
  • the number of downlink subframes corresponding to the ACK/NACK feedback corresponding to the current uplink subframe is M, as shown in Table 1 in the background section.
  • the terminal device is the downlink master.
  • Each of the M downlink subframes on the carrier generates 1-bit ACK/NACK feedback information, and generates NACK as feedback information for the downlink subframes that do not receive data, and obtains M-bit ACK/NACK feedback information;
  • the terminal device When the carrier is in the multi-codeword transmission mode, the terminal device generates 2-bit ACK/NACK feedback information for each of the M downlink subframes on the downlink primary carrier, and respectively corresponds to each codeword in each downlink subframe.
  • a 2-bit NACK is generated as a feedback information for a downlink subframe that does not receive data, and 2M-bit ACK/NACK feedback information is obtained.
  • the terminal device determines the PUCCH format 3 channel resource according to the information carried in the ACK/NACK resource indication field in the PDCCH corresponding to the PDSCH transmission on the downlink secondary carrier.
  • the terminal device determines the PUCCH format 3 channel resource according to the information in the ACK/NACK resource indication field in the PDCCH transmitted by the PDSCH on the downlink secondary carrier.
  • the terminal device determines the PUCCH format 3 channel resource according to the information in the ACK/NACK resource indication field in the PDCCH of the PDSCH transmission on the downlink secondary carrier; or, when the terminal When the device receives the PDSCH on the downlink secondary carrier and receives the downlink data on the downlink primary carrier, whether the downlink data received on the downlink primary carrier includes the PDSCH transmission on the downlink primary carrier corresponding to the PDCCH with the DAI value greater than 1. And the PDCCH indicating that the downlink SPS resource is released, and the terminal device determines the PUCCH format 3 channel resource according to the information in the ACK/NACK resource indication field in the PDCCH of the PDSCH transmission on the downlink secondary carrier.
  • the terminal device determines the ACK/NACK feedback information according to the configured downlink carrier and the transmission mode of each configured downlink carrier, so as to avoid inconsistency between the terminal device and the base station in understanding the number of ACK/NACK feedback bits.
  • Specific ACK/NACK counter The generation process of the number of feed bits and the generation process of the ACK/NACK feedback bits are as described in the first mode, and are not described herein.
  • the PDCCH with the DAI value greater than 1 includes an indication that the value of the PDCCH and the DAI of the PDSCH transmitted on the corresponding downlink primary carrier whose value of the DAI is greater than 1 is greater than 1.
  • ACK/NACK of two types of PDCCHs (PDSCH transmission on the corresponding downlink primary carrier with a value of DAI greater than 1 and/or PDCCH indicating downlink SPS resource release, and PDCCH corresponding to PDSCH transmission on the downlink secondary carrier)
  • the content of the information in the resource indication field is different. Therefore, the terminal device is different in the channel (1) in the second mode and the PUCCH format 3 channel resource determined in the scenario (2). In fact, by using different PUCCH format 3 channels.
  • the ACK/NACK feedback information is sent by the resource, and the information about the received data of different terminal devices and the feedback information generated by the ACK/NACK feedback information sent by the terminal device according to which downlink carrier or downlink carriers are actually determined.
  • the indicated PUCCH format 3 channel resources are the same.
  • the multiple PDCCHs received by the terminal device have a PDSCH transmission on the corresponding downlink primary carrier whose value is greater than 1, and/or in the PDCCH indicating the release of the downlink SPS resource.
  • the ACK/NACK resource indicates that the PUCCH format 3 channel resources indicated in the domain are the same.
  • the PUCCH format 3 channel resources indicated by the ACK/NACK resource indication field in the PDCCH of the PDSCH transmission on the plurality of corresponding downlink secondary carriers received by the terminal device are the same.
  • the terminal device determines the PUCCH format 3 channel resource;
  • the terminal device determines the PUCCH format 3 channel resource according to the ACK/NACK resource indication field in the PDCCH of the PDCCH.
  • the identified resources are all the same / a group of resources.
  • the terminal device may consider that the current scheduling error occurs without performing ACK/NACK feedback information. Or the transmission of the ACK/NACK feedback information by the PUCCH format 3 channel resource indicated by the ACK/NACK resource indication field in one PDCCH in one type of PDCCH corresponding to the received scenario, such a change The scope of protection of the embodiments of the present invention is not affected.
  • the indication value of the resource indication field in the PDCCH in the above two modes corresponds to one of the plurality of PUCCH format 3 channel resources pre-configured by the high layer;
  • the DSI takes a PDSCH transmission on the corresponding downlink primary carrier with a value greater than 1, and/or indicates the downlink SPS resource.
  • the PDCCH and the indication value of the resource indication field in the PDCCH of the PDSCH transmission on the corresponding downlink secondary carrier correspond to a group of resources of the plurality of PUCCH format 3 channel resources that are pre-configured by the high layer, and each group of resources includes two PUCCH format 3 channels. Resources, corresponding to different antenna ports.
  • the ACK/NACK resource indication field in the foregoing PDCCH may be Reuse of existing bit fields in the PDCCH, for example, reuse a 2-bit TPC indication field, or a newly added bit field in the PDCCH.
  • Step S303 The terminal device transmits the ACK/NACK feedback information by using the PUCCH format 3 scheme on the determined PUCCH format 3 channel resource.
  • the configuration and indication processing of the PUCCH format 3 channel resource needs to be completed on the base station side.
  • the specific processing procedure is shown in FIG. 4, and includes the following steps:
  • Step S401 The base station determines a PUCCH format 3 channel resource that is configured for a terminal device configured with multiple downlink carriers.
  • Step S402 The base station sends the determined PUCCH format 3 channel resource in the ACK/NACK resource indication field of the PDCCH to the terminal device.
  • the PDCCH includes a PDCCH indicating that the PDCCH and the DAI of the PDSCH transmission on the corresponding downlink primary carrier having a DAI value greater than 1 and a PDCCH indicating that the downlink SPS resource is released, and a PDCCH corresponding to the PDSCH transmission on the downlink secondary carrier, that is, the PDCCH may be
  • a PDCCH corresponding to the PDSCH transmission on the downlink secondary carrier that is, the PDCCH may be
  • the PDCCH corresponding to the downlink primary carrier and the PDCCH indicating the release of the downlink SPS resource with the value of the DAI greater than 1 includes one or more of the following information:
  • the ACK/NACK resource indication information in the PDCCH may be sent by the eNB in the following two manners, because the information content of the ACK/NACK resource indication domain in the two PDCCHs is the same.
  • determining the corresponding manner may be receiving an indication message of the outside world, or directly configuring the corresponding rule in the base station, or adopting one of the defaults by default.
  • the way to work, such changes do not affect the scope of protection of the present invention.
  • Manner 1 The PDCCH indicating that the PDCCH and/or the DAI of the PDSCH transmitted on the corresponding downlink primary carrier whose value of the DAI is greater than 1 is greater than 1, indicating that the downlink SPS resource is released, and the PDCCH in the PDSCH transmission on the corresponding downlink secondary carrier.
  • the ACK/NACK resource indication field indicates the same PUCCH format 3 channel resource to the terminal device.
  • the base station only needs to determine one (PUCCH format 3 single port transmission) / one (PUCCH format 3 multiport transmission) PUCCH format 3 channel resource, and the corresponding downlink of the DAI value sent by all base stations is greater than 1.
  • the PDSCH transmission on the primary carrier and/or the PDCCH indicating the release of the downlink SPS resource, and the ACK/NACK resource indication field in the PDCCH corresponding to the PDSCH transmission on the downlink secondary carrier are indicated to the terminal device.
  • Manner 2 The PDCCH indicating that the downlink PDCCH and/or the DAI of the PDSCH transmitted on the corresponding downlink primary carrier whose value of the DAI is greater than 1 is greater than 1, indicating that the downlink SPS resource is released, and the PDCCH in the PDSCH transmission on the corresponding downlink secondary carrier.
  • the ACK/NACK resource indication field indicates different PUCCH format 3 channel resources to the terminal device.
  • the base station needs to determine two (PUCCH format 3 single-port transmission) / two groups (PUCCH format 3 multi-port transmission) PUCCH format 3 channel resources, and the corresponding downlink downlink whose value of DAI transmitted by the base station is greater than 1.
  • ACK in the PDCCH on the carrier and/or ACK in the PDCCH indicating the release of the downlink SPS resource indicating the PDCCH in the PDCCH in the PDCCH/NACK resource indication field indicated to the terminal device the PDSCH transmission on the corresponding downlink secondary carrier
  • the /NACK resource indicates to the terminal device another/group of PUCCH format 3 channel resources.
  • Step S403 The base station receives the ACK/NACK feedback information sent by the terminal device by using the PUCCH format 3 scheme according to the determined PUCCH format 3 channel resource.
  • step S402 since there are two types of information content transmission methods in step S402, correspondingly, in this step, different transmission methods are also corresponding, and different processing procedures exist.
  • the PDCCH/NACK in the PDCCH indicating the release of the downlink SPS resource, where the value of the PDCCH and/or the DAI of the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1 is greater than 1.
  • the ACK/NACK resource indication field in the PDCCH corresponding to the PDSCH transmission on the corresponding downlink secondary carrier indicates the same PUCCH format 3 channel resource to the terminal device
  • the ACK/NACK in the PDCCH is specifically adopted in this step.
  • the ACK/NACK feedback information received by the PUCCH format 3 channel resource indicated by the resource indication field needs to be determined according to the corresponding information transmission situation.
  • the processing procedure in this step is specifically described as follows.
  • the base station When the base station sends the downlink data to the terminal device only on the downlink primary carrier, and the downlink data includes at least one indication that the PDSCH transmission on the downlink primary carrier corresponding to the PDCCH with the DAI value greater than 1 and/or the value of the DAI is greater than 1.
  • the base station When the PDCCH of the downlink SPS resource is released, or when the base station transmits the PDSCH with the corresponding PDCCH to the terminal device on the downlink secondary carrier, the base station adopts the PUCCH format 3 scheme, and configures the PDCCH with the ACK/NACK resource indication field by sending
  • the PDCCH/NACK feedback information sent by the terminal device is received on the PUCCH format 3 channel resource of the terminal device, where the PDCCH with the ACK/NACK resource indication field that is sent includes the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1.
  • Scenario 1 When the base station sends downlink data to the terminal device only on the downlink primary carrier, and the downlink data includes at least one PDSCH transmission and/or DAI value of the downlink primary carrier corresponding to the PDCCH with the DAI greater than 1 is greater than When the PDCCH indicating the release of the downlink SPS resource is 1 , the base station transmits the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource to the terminal device only on the downlink primary carrier, and sends the corresponding downlink primary carrier whose value of the DAI is greater than 1.
  • the base station adopts the PUCCH format 3 scheme, and the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1 and/or the PDCCH indicating the release of the downlink SPS resource ACK/NACK resource in any PDCCH indicates a letter in the domain
  • the ACK/NACK feedback information sent by the terminal device is received on the PUCCH format 3 channel resource of the terminal device.
  • the corresponding processing procedure of the base station includes the following two methods:
  • the base station determines that the terminal device has lost all the data transmissions on the downlink primary carrier corresponding to the PDCCH whose value of the DAI is greater than 1 (including the PDSCH transmission and the PDCCH transmission indicating the downlink SPS resource release), and the base station retransmits the downlink primary carrier. All data.
  • the base station determines that the terminal device loses all data transmissions on the downlink primary carrier corresponding to the PDCCH whose value of the DAI is greater than 1 (including the PDSCH transmission and the PDCCH transmission indicating the downlink SPS resource release), and further, the base station is in the PUCCH format la/ The ACK/NACK feedback information is detected on the lb channel resource.
  • ACK/NACK If ACK/NACK is detected, determining, according to the feedback information, retransmission of data corresponding to the PDCCH with the DAI value equal to 1 on the downlink primary carrier and/or retransmission of the SPS PDSCH on the downlink primary carrier, and retransmitting all DAIs on the downlink primary carrier. If the PDCCH/NACK is not detected, the base station determines that the terminal device loses all data (ie, DTX), and the base station retransmits all data on the downlink primary carrier.
  • the base station when the base station sends the PDSCH with the corresponding PDCCH to the terminal device on the downlink secondary carrier, the base station includes the following two scenarios:
  • the base station sends the PDSCH to the terminal device only on the downlink secondary carrier.
  • the base station adopts a PUCCH format 3 scheme, and configures information in an ACK/NACK resource indication field in any PDCCH in a PDCCH transmitted on a PDSCH corresponding to a downlink secondary carrier to a terminal device PUCCH format 3 channel resource, and the receiving terminal device transmits ACK/NACK feedback information.
  • the corresponding processing procedure of the base station is as follows:
  • the base station determines that the terminal device loses data transmission on all downlink secondary carriers, and the base station is heavy All data on the secondary secondary carrier is transmitted.
  • the base station sends the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource to the terminal device on the downlink primary carrier, and sends the PDSCH transmission on the corresponding downlink primary carrier with the DAI value greater than 1, and/or indicates the downlink SPS resource.
  • the released PDCCH, and the PDSCH is transmitted to the terminal device on the downlink secondary carrier.
  • the base station adopts the PUCCH format 3 scheme, and the PDSCH transmission and/or the PDCCH indicating the release of the downlink SPS resource on the corresponding downlink primary carrier whose value of the DAI is greater than 1 and the PDCCH in the PDCCH corresponding to the PDSCH transmission on the downlink secondary carrier are used.
  • the ACK/NACK resource indicates that the information in the domain is allocated to the PUCCH format 3 channel resource of the terminal device, and receives the ACK/NACK feedback information sent by the terminal device.
  • the corresponding processing procedure of the base station includes the following two methods:
  • the base station determines that the terminal device loses data transmission (including PDSCH transmission and PDCCH transmission indicating downlink SPS resource release) on the downlink primary carrier corresponding to the PDCCH whose value of all DAIs on the downlink primary carrier is greater than 1, and all downlinks On the PDCCH of the PDSCH transmission on the secondary carrier, the base station retransmits all data on the downlink primary carrier and the downlink secondary carrier.
  • the base station determines that the terminal device loses all data transmissions on the downlink primary carrier corresponding to the PDCCH whose value of the DAI is greater than 1 (including PDSCH transmission and PDCCH transmission indicating downlink SPS resource release), and PDSCH transmission on all downlink secondary carriers.
  • PDCCH further, the base station detects AC ACK feedback information on the PUCCH format la/lb channel resource.
  • the base station determines, according to the ACK/NACK feedback information, the retransmission of the data corresponding to the PDCCH whose DAI value is equal to 1 on the downlink primary carrier and/or the retransmission of the SPS PDSCH on the downlink primary carrier, And retransmitting data corresponding to the PDCCH whose value of all DAIs on the downlink primary carrier is greater than 1 and all data on the downlink secondary carrier;
  • the base station determines the terminal device All data is lost and the base station retransmits all data sent to the terminal device.
  • the base station may determine that the ACK/NACK feedback information sent by the terminal device is determined according to the downlink carrier configured by the terminal device and the transmission mode of each configured downlink carrier. of.
  • the PDCCH indicating the release of the downlink SPS resource is greater than 1.
  • the ACK/NACK resource indication field in the PDCCH corresponding to the PDSCH transmission on the corresponding downlink subcarrier indicates a different PUCCH format 3 channel resource to the terminal device
  • the ACK in the PDCCH is specifically adopted in this step.
  • the ACK/NACK feedback information is received by the PUCCH format 3 channel resource indicated by the /NACK resource indication field, and needs to be determined according to the corresponding information transmission situation.
  • the processing procedure in this step is specifically described as follows.
  • the base station When the base station sends the downlink data to the terminal device only on the downlink primary carrier, and the downlink data includes at least one indication that the PDSCH transmission on the downlink primary carrier corresponding to the PDCCH with the DAI value greater than 1 and/or the value of the DAI is greater than 1.
  • the base station adopts the PUCCH format 3 scheme, and the PDCCH and/or DAI value of the PDSCH transmitted on the corresponding downlink primary carrier whose value of the DAI is greater than 1 indicates that the PDCCH is released by the downlink SPS resource.
  • the information carried in the ACK/NACK resource indication field is configured to be sent to the PUCCH format 3 channel resource of the terminal device, and the ACK/NACK feedback information sent by the terminal device is received;
  • the base station When the base station sends the PDSCH with the corresponding PDCCH to the terminal device on the downlink secondary carrier, the base station uses the PUCCH format 3 scheme to allocate the information carried in the ACK/NACK resource indication field in the PDCCH transmitted on the PDSCH corresponding to the downlink secondary carrier to The ACK/NACK feedback information sent by the terminal device is received on the PUCCH format 3 channel resource of the terminal device.
  • Scenario 1 When the base station only reaches the terminal on the downlink primary carrier The device sends the downlink data, and the downlink data includes at least one PDSCH transmission on the downlink primary carrier corresponding to the PDCCH whose value of the DAI is greater than 1 and/or the PDCCH indicating that the downlink SPS resource is released when the value of the DAI is greater than 1.
  • the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource are transmitted to the terminal device only on the downlink primary carrier, and the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1 and/or the PDCCH indicating the release of the downlink SPS resource is transmitted. .
  • the base station adopts the PUCCH format 3 scheme, and allocates information on the PDSCH transmission on the corresponding downlink primary carrier whose DAI value is greater than 1 and/or the ACK/NACK resource indication field in the PDCCH indicating the release of the downlink SPS resource to the terminal device PUCCH format 3 On the channel resource, the ACK/NACK feedback information sent by the terminal device is received.
  • the base station determines that the ACK/NACK feedback information sent by the terminal device is the ACK/NACK feedback information of the downlink primary carrier determined according to the transmission mode of the downlink primary carrier.
  • the corresponding processing procedure of the base station includes the following two methods:
  • the base station determines that the terminal device has lost all the data transmissions on the downlink primary carrier corresponding to the PDCCH whose value of the DAI is greater than 1 (including the PDSCH transmission and the PDCCH transmission indicating the downlink SPS resource release), and the base station retransmits the downlink primary carrier. All data.
  • the base station determines that the terminal device loses all data transmissions on the downlink primary carrier corresponding to the PDCCH whose value of the DAI is greater than 1 (including the PDSCH transmission and the PDCCH transmission indicating the downlink SPS resource release), and further, the base station is in the PUCCH format la/ The ACK/NACK feedback information is detected on the lb channel resource.
  • the base station determines, according to the ACK/NACK feedback information, the retransmission of the data corresponding to the PDCCH whose DAI value is equal to 1 on the downlink primary carrier and/or the retransmission of the SPS PDSCH on the downlink primary carrier, And retransmitting data corresponding to the PDCCH whose value of all DAIs on the downlink primary carrier is greater than 1.
  • Scenario 2 When the base station sends a corresponding response to the terminal device on the downlink secondary carrier
  • the base station transmits the PDSCH to the terminal device on the downlink secondary carrier.
  • the base station uses the PUCCH format 3 scheme to receive ACK/NACK feedback information sent by the terminal device on the PUCCH format 3 channel resource corresponding to the information in the ACK/NACK resource indication field of the PDCCH corresponding to the PDSCH transmission on the downlink secondary carrier.
  • the transmitting, by the base station, the PDSCH with the corresponding PDCCH to the terminal device on the downlink secondary carrier includes: the base station transmitting the PDSCH with the corresponding PDCCH to the terminal device only on the downlink secondary carrier, or the base station is on the downlink secondary carrier
  • the terminal device sends the PDSCH with the corresponding PDCCH and the downlink data sent to the terminal device on the downlink primary carrier, and the downlink data may include or not include the PDCCH and the PDSCH of the corresponding downlink primary carrier whose DAI value is greater than 1.
  • the ACK/NACK feedback information sent by the terminal device is received on the PUCCH format 3 channel resource corresponding to the information.
  • the base station determines that the ACK/NACK feedback information sent by the terminal device is determined according to the downlink carrier configured by the terminal device and the transmission mode of each configured downlink carrier.
  • the corresponding processing procedure of the base station includes the following two methods:
  • the base station judges that the terminal device loses the data transmission of all the downlink secondary carriers, and the base station retransmits all the data on the downlink secondary carrier.
  • the base station determines that the terminal device loses the data transmission of all the downlink secondary carriers, and the base station retransmits all the data on the downlink secondary carrier, if the base station simultaneously transmits the PDSCH to the terminal device and/or indicates the downlink SPS resource release on the downlink primary carrier.
  • PDCCH and transmits a PDSCH transmission and/or indication on a corresponding downlink primary carrier whose value of DAI is greater than 1.
  • the PDCCH that is released by the downlink SPS resource may continue to adopt the PUCCH format 3 scheme, and the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1 and/or the ACK/NACK resource indication of the PDCCH indicating the release of the downlink SPS resource
  • the information in the domain is configured to receive ACK/NACK feedback information sent by the terminal device on the PUCCH format 3 channel resource of the terminal device.
  • the base station determines that the ACK/NACK feedback information is feedback information of the data on the downlink primary carrier, and determines the downlink according to the ACK/NACK feedback information. Retransmission of data on the primary carrier and retransmission of all data on the secondary secondary carrier.
  • the base station determines that the terminal device also loses all data transmissions on the downlink primary carrier corresponding to the PDCCH whose value of the DAI is greater than 1.
  • the PDSCH transmission on the primary carrier and the PDCCH transmission indicating the release of the downlink SPS resource the base station retransmits all data on the downlink primary carrier and the downlink secondary carrier, or the base station may further detect ACK/NACK feedback information on the PUCCH format la/lb channel resource. .
  • the base station detects the ACK/NACK feedback information on the PUCCH format la/lb channel resource
  • the corresponding processing procedure is as follows:
  • the base station determines, according to the ACK/NACK feedback information, the retransmission of the data corresponding to the PDCCH whose DAI value is equal to 1 on the downlink primary carrier and/or the retransmission of the SPS PDSCH on the downlink primary carrier, And retransmitting data on the downlink primary carrier corresponding to the PDCCH whose value is greater than 1 on the downlink primary carrier (including the PDSCH transmission and the PDCCH transmission indicating the downlink SPS resource release) and all the data on the downlink secondary carrier;
  • the base station determines that the terminal device has lost all data, and the base station retransmits all data transmitted to the terminal device.
  • the terminal device may indicate information in the domain according to the ACK/NACK resource of the corresponding type of PDCCH. Determining PUCCH format 3 channel resources, which will not be generated due to information differences in multiple PDCCHs of the same type Understand the differences, so the following settings are required.
  • the PUCCH format 3 channel resources indicated by the ACK/NACK resource indication field in the PDCCH of the PDSCH transmission on the plurality of corresponding downlink secondary carriers transmitted by the base station to the terminal device are the same.
  • the indication value of the resource indication field in the PDCCH in the above two cases corresponds to one of the plurality of PUCCH format 3 channel resources pre-configured by the high layer;
  • the multi-port (2-port) transmission mode that is, in the SORTD mode, the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1 and/or the PDCCH indicating the downlink SPS resource release and the PDCCH in the PDSCH transmission on the corresponding downlink secondary carrier are
  • the indication value of the resource indication field corresponds to a group of resources of the plurality of PUCCH format 3 channel resources that are pre-configured by the high layer, and each group of resources includes two PUCCH format 3 channel resources, which respectively correspond to different antenna ports.
  • the ACK/NACK resource indication field in the PDCCH may be a reuse of an existing bit field in the PDCCH, for example, a 2-bit TPC indication field, or a newly added bit field in the PDCCH.
  • the embodiment of the invention has the following advantages:
  • the PDCCH in the corresponding downlink subcarrier with the DAI value greater than 1 and/or the PDCCH indicating the downlink SPS resource release, and the PDCCH in the PDSCH transmission on the downlink secondary carrier may be implemented by using the technical solution of the embodiment of the present invention.
  • the information in the ACK/NACK resource indication field indicates the PUCCH format 3 channel resource, so that when the terminal device configured with multiple downlink carriers receives data only on the downlink primary carrier, the PUCCH format 3 scheme can also be used to transmit ACK/NACK feedback.
  • the information thereby avoiding inconsistent understanding between the base station and the terminal device for the transmission scheme of the ACK/NACK feedback information, improves the reliability and efficiency of the ACK/NACK feedback information transmission.
  • the technical solutions proposed in the embodiments of the present invention are described below in conjunction with specific application scenarios.
  • the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1 and/or the PDCCH/NACK resource indication field in the PDCCH indicating the downlink SPS resource release on the corresponding downlink secondary carrier indicates the same PUCCH format.
  • FIG. 5 is a schematic flowchart of a method for transmitting ACK/NACK feedback information in a specific application scenario according to an embodiment of the present disclosure, where the method specifically includes the following steps:
  • Step S501 The UE configured with multiple downlink carriers receives data on N downlink carriers and M downlink subframes. As shown in Table 1, N > 1 , 1 ⁇ M ⁇ 4.
  • Step S502 The UE selects, according to the PDSCH transmission on the corresponding downlink primary carrier whose value of the received DAI is greater than 1 and/or the PDCCH indicating the downlink SPS resource release and/or the PDCCH in the PDSCH transmission on the corresponding downlink secondary carrier.
  • the ACK/NACK resource in the PDCCH indicates that the information in the domain determines the PUCCH format 3 channel resource.
  • the UE may have different receiving scenarios.
  • the corresponding processing procedure determined by the UE according to the actual information received is as follows.
  • the UE When the UE receives the PDSCH and/or the PDCCH indicating the downlink SPS resource release only on the downlink primary carrier, and receives the PDCCH on the corresponding downlink primary carrier with the DAI value greater than 1, and/or the PDCCH indicating the downlink SPS resource release.
  • the UE determines the PUCCH format 3 channel resource according to the information in the ACK/NACK resource indication field in the PDCCH in the PDCCH in the PDCCH corresponding to the downlink downlink primary carrier whose value of the DAI is greater than 1 and/or the PDCCH in the PDCCH indicating the release of the downlink SPS resource.
  • the UE When the UE receives the PDSCH only on the downlink secondary carrier, the UE according to the corresponding downlink auxiliary The information in the ACK/NACK resource indication field in any of the PDCCHs in the PDSCH transmitted on the PD determines the PUCCH format 3 channel resource.
  • the UE When the UE receives the PDSCH on the downlink primary carrier and/or the PDCCH and the DAI indicating the release of the downlink SPS resource, the PDSCH transmission on the corresponding downlink primary carrier whose value is greater than 1, and/or the PDCCH indicating the downlink SPS resource release, and the downlink secondary carrier
  • the UE Upon receiving the PDSCH, the UE according to the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1 and/or the PDCCH in the PDCCH indicating the downlink SPS resource release and the PDCCH in the PDCCH corresponding to the PDSCH transmission on the corresponding downlink secondary carrier
  • the information in the NACK resource indication field determines the PUCCH format 3 channel resource.
  • Step S503 The UE determines ACK/NACK feedback information according to the configured downlink carrier and the transmission mode of each configured downlink carrier.
  • Step S504 The UE transmits the ACK/NACK feedback information by using the PUCCH format 3 scheme on the determined PUCCH format 3 channel resource.
  • step S502 the UE receives the PDSCH transmission on the corresponding downlink primary carrier whose value of the received DAI is greater than 1 and/or the PDCCH indicating the release of the downlink SPS resource and/or the PDCCH of the PDSCH transmission on the corresponding downlink secondary carrier.
  • the ACK/NACK resource in any of the PDCCHs indicates that the PUCCH format 3 channel resources determined by the information in the domain are the same/set of channel resources, so the above three types of reception conditions can be combined into one UE behavior, that is, When the UE receives the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource only on the downlink primary carrier, and receives the PDCCH on the corresponding downlink primary carrier with the DAI value greater than 1, and/or the PDCCH indicating the downlink SPS resource release.
  • the UE when the UE receives the PDSCH on the downlink secondary carrier, the UE according to the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1 and/or the PDCCH indicating the downlink SPS resource release and the PDCCH in the PDSCH transmission on the corresponding downlink secondary carrier.
  • the information in the ACK/NACK resource indication field in any PDCCH determines the PUCCH format 3 channel resource, and then steps S503 and S504 are performed.
  • the PUCCH format 3 channel resource indicated by the ACK/NACK resource indication field of the PDCCH for transmitting and/or indicating the release of the downlink SPS resource, and the ACK/NACK resource indication field in the PDCCH of the PDSCH transmission on the corresponding downlink secondary carrier received by the UE When the PUCCH format 3 channel resources are inconsistent, the corresponding processing includes the following two cases: (1) The UE can be regarded as a scheduling error, and the AC ACK feedback information is not transmitted in the current uplink subframe.
  • the UE selects one of the PUCCH format 3 channel resources to transmit AC ACK feedback information.
  • the PUCCH format 3 channel resources indicated by the ACK/NACK resource indication field of the PDCCH of the PDCCH indicating that the plurality of DAIs are greater than 1 and the PDCCH/NACK resource indication field of the PDCCH indicating the release of the downlink SPS resource are inconsistent, or
  • the UE may also be regarded as a scheduling error, and no ACK is transmitted in the current uplink subframe. /NACK feedback information, or select one of the PUCCH format 3 channel resources to transmit ACK/NACK feedback information.
  • Manner 2 The PDSCH transmission on the corresponding downlink primary carrier with the DAI value greater than 1 and/or the PDCCH/NACK resource indication field in the PDCCH indicating the downlink SPS resource release on the corresponding downlink secondary carrier indicates different PUCCH format
  • FIG. 6 is a schematic flowchart of a method for transmitting ACK/NACK feedback information in a specific application scenario according to an embodiment of the present disclosure, where the method specifically includes the following steps:
  • Step S601 The UE configured with multiple downlink carriers receives data on N downlink carriers and M downlink subframes. As shown in Table 1, N > 1 and 1 ⁇ M ⁇ 4.
  • Step S602 The UE determines a corresponding processing procedure according to the situation that the information is actually received. When the UE receives the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource only on the downlink primary carrier, and receives the PDCCH on the corresponding downlink primary carrier whose DAI value is greater than 1, and/or the PDCCH indicating the release of the downlink SPS resource, Go to step S603;
  • step S605 is performed.
  • the foregoing UE receiving data on the downlink secondary carrier includes the following two types:
  • the UE receives the PDSCH only on the downlink secondary carrier.
  • the UE receives the PDSCH on the downlink primary carrier and/or the PDCCH and the DAI indicating that the downlink SPS resource is released, and the PDSCH transmission on the corresponding downlink primary carrier whose value is greater than 1, and/or the PDCCH indicating the release of the downlink SPS resource, and is in the downlink
  • the secondary carrier receives the PDSCH.
  • Step S603 The UE determines, according to the PDSCH transmission on the corresponding downlink primary carrier whose DAI value is greater than 1 and/or the information in the ACK/NACK resource indication field of the PDCCH indicating the release of the downlink SPS resource, the PUCCH format 3 channel resource.
  • Step S604 The UE generates ACK/NACK feedback information only for the downlink primary carrier according to the transmission mode of the downlink primary carrier.
  • the UE does not need to spatially combine ACK/NACK feedback information of multiple codewords in the same downlink subframe.
  • step S607 is performed.
  • Step S605 The UE determines a PUCCH format 3 channel resource according to the information in the ACK/NACK resource indication field of the PDCCH corresponding to the PDSCH transmission on the downlink secondary carrier.
  • Step S606 The UE determines ACK/NACK feedback information according to the configured downlink carrier and the transmission mode of each configured downlink carrier.
  • step S607 is performed.
  • Step S607 The UE transmits the ACK/NACK feedback information by using the PUCCH format 3 scheme on the PUCCH format 3 channel resource determined in step S603 or step S605.
  • the PUCCH format 3 channel resource determined in the above step S603 is recorded as PUCCH format 3 channel resource 1
  • the PUCCH format 3 channel resource determined in step S605 is recorded as PUCCH format 3 channel resource 2.
  • the PUCCH format 3 channel resource 2 is different from the PUCCH format 3 channel resource 1 because the information of the ACK/NACK resource indication domain of the two types of PDCCHs has been set in this mode.
  • the UE may determine the PUCCH format 3 channel resource according to the information in the ACK/NACK resource indication field of the corresponding type of PDCCH, not because of multiple types of the same type.
  • the difference in information in the PDCCH leads to an understanding of the difference, so the following settings are required.
  • the PUCCH format 3 channel resources indicated by the resource indication field of the PDCCH corresponding to the PDCCH of the multiple downlink DAIs having the value of the DAI greater than 1 and the PDCCH of the PDCCH indicating the release of the downlink SPS resources shall be the same; the PDSCH transmission of the plurality of corresponding downlink secondary carriers
  • the PUCCH format 3 channel resources indicated by the resource indication field in the PDCCH should be the same.
  • the UE may consider that it is a scheduling error, and does not transmit ACK/NACK feedback information in the current uplink subframe; or, the UE selects one of the PUCCH format 3 channel resources to transmit ACK/NACK feedback information.
  • the ACK/NACK resource indication field mentioned is a reuse of an existing bit field in the PDCCH, for example, a 2-bit TPC indication domain is reused, or is in the PDCCH. Newly added bit field.
  • the base station when in the carrier reconfiguration process, can only have at most one data transmission on the downlink primary carrier (including dynamic PDSCH, SPS).
  • the PDSCH and the PDCCH indicating the release of the SPS resource are included to avoid the inconsistency between the base station and the UE caused by the UE determining the ACK/NACK feedback bit according to the configured downlink carrier; if the UE receives the data, the data corresponds to the data.
  • the minimum CCE of the PDCCH is determined on the PUCCH format la/lb channel resource or on the higher layer pre-configured PUCCH format la/lb channel resource corresponding to the SPS PDSCH (by the 2-bit TPC indication in the PDCCH that activates the SPS PDSCH) 1 or 2 bits of the packet ACK/NACK information;
  • the base station only needs to receive data on the above PUCCH format la/lb resource, and there is no understanding ambiguity.
  • the processing procedure on the base station side will be respectively described corresponding to the two transmission methods in step S402.
  • the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1 and/or the PDCCH indicating the release of the downlink SPS resource and the ACK/NACK resource indication field in the PDCCH on the PDSCH transmission on the corresponding downlink secondary carrier Indicates the same PUCCH format 3 channel resource.
  • FIG. 7 is a schematic flowchart of a method for transmitting ACK/NACK feedback information in a specific application scenario according to an embodiment of the present disclosure, where the method specifically includes the following steps:
  • Step S701 The base station determines a PUCCH format 3 channel resource that is configured for a UE configured with multiple downlink carriers.
  • the base station determines a PUCCH format 3 channel resource.
  • the base station determines a group of PUCCH format 3 channel resources, including 2 PUCCH format 3 channels. Resources, corresponding to different ports.
  • Step S702 The base station sends the configured PUCCH format 3 channel resource to the UE by using an ACK/NACK resource indication field in the PDCCH.
  • the PDCCH includes a PDSCH transmission on the corresponding downlink primary carrier with a value of DAI greater than 1 and a PDCCH indicating downlink SPS resource release (including dynamic mobility, PDCCH indicating SPS PDSCH activation and SPS resource release), and transmission on the downlink secondary carrier. Any one or more PDCCHs in the PDCCH corresponding to the PDSCH.
  • the processing procedure of the base station indicating the PUCCH format 3 channel resource by using the PDCCH is as follows.
  • the base station When the base station transmits only the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource on the downlink primary carrier, and transmits the PDCCH on the corresponding downlink primary carrier with the DAI value greater than 1, and/or the PDCCH indicating the downlink SPS resource release. , the base station will DAI
  • the information in the ACK/NACK resource indication field in the PDCCH corresponding to the PDSCH transmission and/or the downlink SPS resource release indicating that the value is greater than 1 is indicated as the PUCCH format 3 channel resource determined in step S701, and is sent to UE.
  • the base station When the base station only has the PDSCH transmission on the downlink secondary carrier, the base station indicates the information in the ACK/NACK resource indication field in the PDCCH corresponding to the PDSCH transmission on the downlink secondary carrier as the PUCCH format 3 channel resource determined in step S701, and sends the information.
  • the base station When the base station only has the PDSCH transmission on the downlink secondary carrier, the base station indicates the information in the ACK/NACK resource indication field in the PDCCH corresponding to the PDSCH transmission on the downlink secondary carrier as the PUCCH format 3 channel resource determined in step S701, and sends the information.
  • the base station When the base station transmits the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource on the downlink primary carrier, and sends the PDCCH on the corresponding downlink primary carrier whose DAI value is greater than 1, and/or the PDCCH indicating the release of the downlink SPS resource, and When there is a PDSCH transmission on the downlink secondary carrier, the base station transmits the PDSCH transmission on the corresponding downlink primary carrier with the DAI value greater than 1 and/or the PDCCH indicating the downlink SPS resource release and the PDCCH in the PDCCH corresponding to the PDSCH transmission on the corresponding downlink secondary carrier.
  • the information in the NACK resource indication field is indicated as the PUCCH format 3 channel resource determined in step S701, and is sent to the UE.
  • Step S703 The base station determines that the ACK/NACK feedback information transmitted by the UE is determined according to the configured downlink carrier and the transmission mode of each configured downlink carrier.
  • Step S704 The base station receives the ACK/NACK feedback information by using the PUCCH format 3 scheme on the determined PUCCH format 3 channel resource.
  • the PUCCH format 3 channel resources indicated by the base station in the PDCCH in any of the above steps should be the same. .
  • the UE can correctly determine the PUCCH format 3 channel resource according to the information in the ACK/NACK resource indication field of the PDCCH, and does not have the difference of information in multiple PDCCHs. , so, you need to make the following settings:
  • the PUCCH format 3 channel resources indicated by the resource indication field of the PDCCH corresponding to the PDCCH of the PDCCH whose PDCCH is greater than 1 and the PDCCH of the PDCCH indicating the release of the downlink SPS resource should be the same; Secondary carrier The PUCCH format 3 channel resources indicated by the resource indication field in the PDCCH of the upper PDSCH transmission should be the same.
  • the base station further receives the following processing corresponding to the three cases in the step S702:
  • the corresponding processing manner includes:
  • Manner 1 The base station determines that the UE loses data transmission (including PDSCH transmission and/or PDCCH transmission indicating downlink SPS resource release) corresponding to the PDCCH corresponding to the PDCCH whose value of the DAI is greater than 1. The base station retransmits the downlink primary carrier. All the data.
  • the base station determines that the UE loses data transmission (including PDSCH transmission and/or PDCCH transmission indicating downlink SPS resource release) corresponding to the PDCCH corresponding to the PDCCH whose value of the DAI is greater than 1.
  • the base station further performs the PUCCH format la/ ACK/NACK feedback information is detected on the lb channel resource.
  • the ACK/NACK feedback information is detected, determining, according to the feedback information, retransmission of data corresponding to the PDCCH with the DAI value equal to 1 on the downlink primary carrier and/or retransmission of the SPS PDSCH on the downlink primary carrier, and retransmitting the downlink master All DAIs on the carrier have data on the downlink primary carrier corresponding to the PDCCH whose value is greater than 1 (including PDSCH transmission and/or PDCCH transmission indicating downlink SPS resource release).
  • the base station determines that the UE has lost all data (i.e., DTX) and the base station retransmits all data.
  • the base station determines that the UE has lost the PDSCH transmission on all the corresponding downlink secondary carriers, and the base station retransmits all the data on the downlink secondary carrier.
  • the base station transmits the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource on the downlink primary carrier, and transmits the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1, and/or indicates the release of the downlink SPS resource.
  • PDCCH and when there is a PDSCH transmission on the downlink secondary carrier, the corresponding processing manner includes:
  • Manner 1 The base station determines that the UE has lost all PDSCHs on the corresponding downlink secondary carrier.
  • the data transmission (including the PDSCH transmission and/or the PDCCH indicating the downlink SPS resource release) corresponding to the PDCCH corresponding to the PDCCH whose value of the DAI is greater than 1 is transmitted, and the base station retransmits all the data.
  • the base station determines that the UE loses the PDSCH transmission on all the corresponding downlink secondary carriers and the data transmission on the downlink primary carrier corresponding to the PDCCH with the DAI value greater than 1 (including the PDSCH transmission and/or the PDCCH indicating the downlink SPS resource release)
  • the base station further detects ACK/NACK feedback information on the PUCCH format la/lb channel resource.
  • the ACK/NACK feedback information If the ACK/NACK feedback information is detected, determining, according to the feedback information, retransmission of data corresponding to the PDCCH with the DAI value equal to 1 on the downlink primary carrier and/or retransmission of the SPS PDSCH on the downlink primary carrier, and retransmitting all other data.
  • the base station determines that the UE has lost all data (i.e., DTX) and the base station retransmits all data.
  • the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1 and/or the PDCCH indicating the release of the downlink SPS resource and the ACK/NACK resource indication field in the PDCCH on the PDSCH transmission on the corresponding downlink secondary carrier Indicates different PUCCH format 3 channel resources.
  • FIG. 8 is a schematic flowchart of a method for transmitting ACK/NACK feedback information in a specific application scenario according to an embodiment of the present disclosure, where the method specifically includes the following steps:
  • Step S801 The base station determines a PUCCH format 3 channel resource that is configured for a UE configured with multiple downlink carriers.
  • the base station determines two PUCCH format 3 channel resources.
  • the base station determines two groups of PUCCH format 3 channel resources, including two in each group. PUCCH format 3 channel resources, corresponding to different ports. The above two /2 group channel resources are referred to as PUCCH format 3 channel resource 1 and PUCCH format 3 channel resource 2.
  • Step S802 The base station sends the configured PUCCH format 3 channel resource to the UE by using an ACK/NACK resource indication field in the PDCCH.
  • the PDCCH includes two types, one type is a PDSCH transmission on a corresponding downlink primary carrier whose value of DAI is greater than 1 and/or a PDCCH indicating downlink SPS resource release (including dynamic mobilization, PDCCH indicating SPS PDSCH activation and SPS resource release)
  • the other type is a PDCCH corresponding to a PDSCH transmitted on a downlink secondary carrier.
  • the ACK/NACK resource indication fields in the two types of PDCCHs respectively indicate the 2/2/2 PUCCH format 3 channel resources determined in step S801.
  • Step S803 The base station determines a corresponding processing procedure according to the actual situation of sending the information.
  • the base station only has data transmission on the downlink primary carrier, and transmits a PDCCH corresponding to the downlink primary carrier with a DAI greater than 1, and/or a PDCCH indicating the downlink SPS resource release, steps S804 and S805 are performed;
  • steps S806 and S807 are performed. It should be noted that the foregoing base station has data transmission on the downlink secondary carrier, which includes the following two types:
  • the base station only has PDSCH transmission on the downlink secondary carrier.
  • the base station transmits the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource on the downlink primary carrier, and transmits the PDSCH transmission on the corresponding downlink primary carrier with the DAI value greater than 1, and/or the PDCCH indicating the release of the downlink SPS resource. And there is a PDSCH transmission on the downlink secondary carrier.
  • Step S804 The base station determines that the ACK/NACK feedback information transmitted by the UE is the ACK/NACK feedback information of the downlink host.
  • the UE may not spatially combine ACK/NACK feedback information of multiple codewords in the same downlink subframe.
  • Step S805 The base station adopts PUCCH on the PUCCH format 3 channel resource indicated by the information in the ACK/NACK resource indication field of the PDCCH of the PDCCH indicating that the downlink SPS resource is released by the DAI with the value of the DAI being greater than 1.
  • the format 3 scheme receives ACK/NACK feedback information.
  • Step S806 The base station determines that the ACK/NACK feedback information transmitted by the UE is determined according to the configured downlink carrier and the transmission mode of each configured downlink carrier.
  • Step S807 The PDCCH transmitted by the base station on the PDSCH corresponding to the downlink secondary carrier
  • the ACK/NACK resource indicates that the PUCCH format 3 scheme receives the ACK/NACK feedback information on the PUCCH format 3 channel resource indicated by the information in the domain.
  • the PUCCH format 3 channel resource determined in the above step S805 is recorded as PUCCH format 3 channel resource 1
  • the PUCCH format 3 channel resource determined in step S807 is recorded as PUCCH format 3 channel resource 2.
  • the PUCCH format 3 channel resource 2 is different from the PUCCH format 3 channel resource 1 because the information of the ACK/NACK resource indication fields of the two PDCCHs has been set differently in this manner.
  • the UE may determine the PUCCH format 3 channel resource according to the information in the ACK/NACK resource indication field of the corresponding type of PDCCH, not because of multiple types of the same type.
  • the difference in information in the PDCCH leads to an understanding of the difference, so the following settings are required.
  • the PUCCH format 3 channel resources indicated by the resource indication field of the PDCCH corresponding to the PDCCH of the PDCCH whose PDCCH is greater than 1 and the PDCCH of the PDCCH indicating the release of the downlink SPS resource should be the same;
  • the PUCCH format 3 channel resources indicated by the resource indication field in the PDCCH of the PDSCH transmission on the secondary carrier should be the same.
  • step S805 if the base station does not receive the ACK/NACK feedback information on the PUCCH format 3 channel resource 1, the base station further processes as follows:
  • the base station only sends the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource on the downlink primary carrier, and the corresponding processing manners include:
  • Manner 1 The base station determines that the UE loses all data transmissions on the downlink primary carrier whose value of the DAI is greater than 1 (including PDSCH transmission and/or PDCCH indicating downlink SPS resource release), and the base station retransmits all data on the downlink primary carrier.
  • Manner 2 The base station determines that the UE loses all data transmissions on the downlink primary carrier whose value is greater than 1 (including PDSCH transmission and/or PDCCH indicating downlink SPS resource release), and the base station further performs on the PUCCH format la/lb channel resource. Detect AC ACK feedback information.
  • the ACK/NACK feedback information is detected, determining, according to the feedback information, retransmission of data corresponding to the PDCCH with the DAI value equal to 1 on the downlink primary carrier and/or retransmission of the SPS PDSCH on the downlink primary carrier, and retransmitting the downlink master All PDCCHs on the carrier that have a value greater than 1 corresponding to the PDCCH (including PDSCH transmission and/or PDCCH indicating downlink SPS resource release).
  • the base station determines that the UE has lost all data (i.e., DTX) and the base station retransmits all data.
  • step S807 if the base station does not receive the ACK/NACK feedback information on the PUCCH format 3 channel resource 2, the further processing procedure of the base station is divided into the following two cases according to the actual transmission situation of the base station:
  • the base station determines that the UE has lost PDSCH transmission on all downlink secondary carriers, and the base station retransmits all data.
  • the base station transmits the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource on the downlink primary carrier, and transmits the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1, and/or indicates the release of the downlink SPS resource.
  • PDCCH and when there is data transmission on the downlink secondary carrier, the corresponding processing manner includes:
  • Manner 1 The base station determines that the UE loses the PDSCH transmission on all the downlink secondary carriers and the data transmission on the downlink primary carrier of the PDCCH corresponding to the DAI having the value greater than 1, including the PDSCH transmission and/or the PDCCH indicating the downlink SPS resource release. The base station retransmits all data.
  • the base station determines that the UE loses the PDSCH transmission on all downlink secondary carriers and the data transmission (including the PDSCH transmission and/or the PDCCH indicating the downlink SPS resource release) of the downlink primary carrier of the PDCCH corresponding to the DAI value greater than 1.
  • the base station further detects ACK/NACK feedback information on PUCCH format 3 channel resource 1.
  • the base station determines that the ACK/NACK feedback information is feedback information of data on the downlink primary carrier, and determines retransmission of data on the downlink primary carrier according to the ACK/NACK feedback information, and retransmits all downlinks.
  • the data on the secondary carrier If the ACK/NACK feedback information is detected, the base station determines that the ACK/NACK feedback information is feedback information of data on the downlink primary carrier, and determines retransmission of data on the downlink primary carrier according to the ACK/NACK feedback information, and retransmits all downlinks. The data on the secondary carrier.
  • the base station determines that the UE has lost all Corresponding to the data on the downlink primary carrier corresponding to the PDCCH corresponding to the PDCCH of the data transmission on the downlink primary carrier (including the PDSCH transmission and/or the PDCCH indicating the downlink SPS resource release), the base station retransmits all the data.
  • the base station determines that the UE loses the PDSCH transmission on all downlink secondary carriers and the data transmission (including the PDSCH transmission and/or the PDCCH indicating the downlink SPS resource release) of the downlink primary carrier of the PDCCH corresponding to the DAI value greater than 1.
  • the base station further detects ACK/NACK feedback information on the PUCCH format 3 channel resource 1 and PUCCH format la/lb channel resources.
  • the base station first detects the AC ACK feedback information on the PUCCH format 3 channel resource 1.
  • the base station determines retransmission of data on the downlink primary carrier based on the ACK/NACK feedback information, and retransmits data on all downlink secondary carriers.
  • the base station If no ACK/NACK is detected, the base station further detects ACK/NACK feedback information on the PUCCH format la/lb channel resource.
  • the base station determines that the UE has lost all data (i.e., DTX) and the base station retransmits all data.
  • the base station when in the carrier reconfiguration process, can only have data transmission on the downlink primary carrier, but there may be multiple downlinks. Data transmission of the frame to avoid inconsistency between the UE and the base station for understanding the ACK/NACK feedback bits.
  • the UE Transmitted on the PUCCH format la/lb channel resource determined by the minimum CCE of the PDCCH or on the high-level pre-configured PUCCH format la/lb channel resource corresponding to the SPS PDSCH (indicated by 2-bit TPC in the PDCCH that activates the SPS PDSCH) 1 or 2 bits of ACK/NACK information of the packet; If the UE receives the PDSCH transmission on the corresponding downlink primary carrier and the PDCCH indicating the downlink SPS resource release corresponding to the DAI with the value of the DAI greater than 1, the UE indicates the PUCCH format 3 indicated by the resource indication field in the PDCCH.
  • the ACK/NACK feedback information of the downlink primary carrier is sent on the channel resource 1; the base station only needs to determine whether to receive data on the PUCCH format la/lb resource or the PUCCH format 3 channel resource according to the actual scheduling situation of the downlink primary carrier. Yes, there is no understanding of ambiguity.
  • the embodiment of the invention has the following advantages:
  • the PDCCH in the corresponding downlink subcarrier with the DAI value greater than 1 and/or the PDCCH indicating the downlink SPS resource release, and the PDCCH in the PDSCH transmission on the downlink secondary carrier may be implemented by using the technical solution of the embodiment of the present invention.
  • the information in the ACK/NACK resource indication field indicates the PUCCH format 3 channel resource, so that when the terminal device configured with multiple downlink carriers receives data only on the downlink primary carrier, the PUCCH format 3 scheme can also be used to transmit ACK/NACK feedback.
  • the information thereby avoiding inconsistent understanding between the base station and the terminal device for the transmission scheme of the ACK/NACK feedback information, improves the reliability and efficiency of the ACK/NACK feedback information transmission.
  • the embodiment of the present invention further provides a terminal device, and a schematic structural diagram thereof is shown in FIG.
  • the receiving module 91 is configured to receive data in M downlink subframes of the N downlink carriers, where N > 1 , 1 ⁇ M ⁇ 4, data in the M downlink subframes The corresponding ACK/NACK feedback information is transmitted in the same uplink subframe.
  • the determining module 92 is configured to determine, according to the information carried in the ACK/NACK resource indication field in the PDCCH received by the receiving module 91, the PUCCH format 3 channel resource, where
  • the PDCCH includes a PDCCH indicating that the PDCCH and the DAI of the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1, and a PDCCH indicating that the downlink SPS resource is released, and a PDCCH corresponding to the PDSCH transmission on the downlink secondary carrier;
  • the sending module 93 is configured to transmit ACK/NACK feedback information by using a PUCCH format 3 scheme on the PUCCH format 3 channel resource determined by the determining module 92.
  • the determining module 92 is specifically configured to:
  • the receiving module 91 receives the downlink data only on the downlink primary carrier, and the downlink data includes at least one PDSCH transmission and/or the DAI value of the downlink primary carrier corresponding to the PDCCH with the value of the DAI greater than 1.
  • the PUCCH format 3 channel resource is determined according to the information carried in the ACK/NACK resource indication field in the PDCCH whose value of the DAI is greater than 1; when the receiving module 91 is in the downlink secondary carrier
  • the PUCCH format 3 channel resource is determined according to the information carried in the ACK/NACK resource indication field in the PDCCH of the PDSCH transmitted on the corresponding downlink secondary carrier; if the terminal device is simultaneously in the downlink primary carrier Receiving the downlink data, and the downlink data includes at least one PDCCH on the downlink primary carrier corresponding to the PDCCH whose value of the DAI is greater than 1 and/
  • the information carried in the indication domain determines a PUCCH format 3 channel resource
  • the PDCCH with the DAI value greater than 1 includes a PDCCH indicating that the PDCCH and the DAI of the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1 indicates that the downlink SPS resource is released, and the DAI is taken.
  • the receiving module 91 receives the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource only on the downlink primary carrier, and receives the PDSCH transmission and/or indication on the corresponding downlink primary carrier whose value of the DAI is greater than 1.
  • the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1 and/or the PDCCH indicating the release of the downlink SPS resource, and / or PDCCH corresponding to PDSCH transmission on the downlink secondary carrier
  • the information in the ACK/NACK resource indication field in any one of the PDCCHs determines the PUCCH format 3 channel resource; wherein the DAI takes a PDSCH transmission on the corresponding downlink primary carrier with a value greater than 1, and/or in the PDCCH indicating the release of the downlink SPS resource
  • the PUCCH format 3 channel resource indicated by the ACK/NACK resource indication field is the same as the PUCCH format 3 channel resource indicated by the ACK/NACK resource indication field in the PDCCH of the PDSCH transmission on the corresponding downlink secondary carrier.
  • determining module 92 is further configured to:
  • the PDCCH/NACK in the PDCCH indicating that the PDCCH of the PDSCH transmission and the value of the /DAI on the corresponding downlink primary carrier whose value of the DAI is greater than 1 and the value of the DAI is greater than 1 indicates that the downlink SPS resource is released.
  • the PUCCH format 3 channel resource indicated by the resource indication field is the same as the PUCCH format 3 channel resource indicated by the ACK/NACK resource indication field in the PDCCH of the PDSCH transmission on the corresponding downlink secondary carrier, according to the configured downlink carrier and each The configured transmission mode of the downlink carrier determines ACK/NACK feedback information.
  • the determining module 92 is specifically configured to:
  • the receiving module 91 receives the downlink data only on the downlink primary carrier, and the downlink data includes at least one PDSCH transmission and/or the DAI value of the downlink primary carrier corresponding to the PDCCH with the value of the DAI greater than 1.
  • the PUCCH format 3 channel resource is determined according to the information carried in the ACK/NACK resource indication field in the PDCCH whose value of the DAI is greater than 1; when the receiving module 91 is in the downlink secondary carrier
  • the PUCCH format 3 channel resource is determined according to the information carried in the ACK/NACK resource indication field in the PDCCH of the PDSCH transmission on the downlink secondary carrier; where the DAI takes a value greater than 1 And including a PDCCH of the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1, and a PDCCH indicating that the downlink SPS resource is released
  • the PUCCH format 3 channel resource indicated by the NACK resource indication field, and the PUCCH format 3 channel resource indicated by the ACK/NACK resource indication field in the PDCCH of the PDSCH transmission on the corresponding downlink secondary carrier is not ; That is, the receiving module 91 receives the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource only on the downlink primary carrier, and receives the PDSCH transmission and/or indication on the corresponding downlink primary carrier whose value of the DAI is greater than 1.
  • the PUCCH format 3 channel resource is determined according to the information of the ACK/NACK resource indication field in the PDCCH in the PDCCH corresponding to the DSI whose value is greater than 1 and the PDCCH in the PDCCH indicating the release of the downlink SPS resource.
  • the PUCCH format 3 channel resource is determined according to the information in the ACK/NACK resource indication field in the PDCCH of the PDSCH transmission on the downlink secondary carrier; wherein the value of the DAI is greater than 1 Corresponding to the PDSCH transmission on the downlink primary carrier and/or the PUCCH format 3 channel resource indicated by the ACK/NACK resource indication field in the PDCCH indicating the downlink SPS resource release, and the ACK/NACK in the PDCCH corresponding to the PDSCH transmission on the corresponding downlink secondary carrier
  • the PUCCH format 3 channel resources indicated by the resource indication field are different.
  • determining module 92 is further configured to:
  • the PDCCH/NACK resource in the PDCCH indicating that the PDCCH of the PDSCH transmission and the value of the DAI on the corresponding downlink primary carrier with the DAI value greater than 1 and the DAI value greater than 1 indicates that the downlink SPS resource is released is greater than 1
  • the PUCCH format 3 channel resource indicated by the indication field is different from the PUCCH format 3 channel resource indicated by the ACK/NACK resource indication field in the PDCCH of the PDSCH transmission on the corresponding downlink secondary carrier:
  • the receiving module 91 receives the downlink data only on the downlink primary carrier, and the downlink data includes at least one PDSCH transmission and/or the DAI value of the downlink primary carrier corresponding to the PDCCH with the value of the DAI greater than 1.
  • the PDCCH indicating the release of the downlink SPS resource is 1 according to the transmission mode of the downlink primary carrier, only the ACK/NACK feedback information is determined for the downlink primary carrier;
  • the receiving module 91 receives the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource only on the downlink primary carrier, and receives the PDSCH transmission and/or indication on the corresponding downlink primary carrier whose value of the DAI is greater than 1.
  • the PDCCH released by the downlink SPS resource is determined according to the transmission mode of the downlink primary carrier, only the downlink primary carrier is determined.
  • the receiving module 91 When the receiving module 91 receives the PDSCH corresponding to the PDCCH on the downlink secondary carrier, determining the ACK/NACK feedback information according to the configured downlink carrier and the transmission mode of each configured downlink carrier;
  • the receiving module 91 when the receiving module 91 receives the PDSCH on the downlink secondary carrier, the AC ACK feedback information is determined according to the configured downlink carrier and the transmission mode of each configured downlink carrier.
  • the receiving module 91 when the receiving module 91 receives the downlink data only on the downlink primary carrier, and the downlink data includes at least one PDSCH transmission and/or on the downlink primary carrier corresponding to the PDCCH with the DAI greater than 1.
  • the PDCCH indicating the release of the downlink SPS resource is received, that is, the receiving module 91 receives the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource only on the downlink primary carrier, and the value of the received DAI is greater than 1.
  • the determining module 92 is further configured to:
  • an embodiment of the present invention further provides a base station, and a schematic structural diagram thereof is shown in FIG. 10, which specifically includes:
  • the configuration module 101 is configured to determine a PUCCH format 3 channel resource configured for a terminal device configured with multiple downlink carriers;
  • the sending module 102 is configured to send the PUCCH format 3 channel resource that is determined by the configuration module 101 to the terminal device in the ACK/NACK resource indication field of the PDCCH, where the PDCCH includes the corresponding downlink primary carrier whose value of the DAI is greater than 1.
  • the receiving module 103 is configured to receive, by using the PUCCH format 3 scheme, the ACK/NACK feedback information sent by the terminal device according to the PUCCH format 3 channel resource determined by the configuration module 101.
  • the sending module 102 is specifically configured to:
  • the PDCCH/NACK resource indication field of the PDCCH indicating the downlink SPS resource release and the PDSCH transmission on the corresponding downlink secondary carrier, where the PDCCH and/or the DAI of the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1 is greater than 1.
  • the ACK/NACK resource indication field in the PDCCH indicates the same PUCCH format 3 channel resource to the terminal device.
  • the sending module 102 passes the PDCCH and/or DAI of the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1, the ACK/NACK resource indication field of the PDCCH indicating the release of the downlink SPS resource is greater than 1, and
  • the receiving module 103 is specifically configured to:
  • the sending module 102 sends the downlink data to the terminal device only on the downlink primary carrier, and the downlink data includes at least one PDSCH transmission on the downlink primary carrier corresponding to the PDCCH with the DAI greater than 1 and/or
  • the receiving module 103 adopts the PUCCH format 3
  • the ACK/NACK feedback information sent by the terminal device is received on the PUCCH format 3 channel resource that is configured by the PDCCH with the ACK/NACK resource indication field to be sent to the terminal device, where the The PDCCH with the ACK/NACK resource indication field includes a PDCCH indicating that the PDCCH and the DAI of the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1 indicates that the downlink SPS resource is released, and the PDSCH
  • the sending module 102 passes the PDSCH transmission on the corresponding downlink primary carrier with the DAI value greater than 1, and/or the ACK/NACK resource indication field of the PDCCH indicating the downlink SPS resource release, and the PDSCH transmission on the corresponding downlink secondary carrier.
  • the receiving module 103 is specifically configured to: When the sending module 102 sends the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource to the terminal device only on the downlink primary carrier, and sends the PDSCH transmission on the corresponding downlink primary carrier with the DAI value greater than 1, and/or indicates the downlink SPS.
  • the receiving module 103 adopts the PUCCH format 3 scheme, and transmits the PDSCH on the corresponding downlink primary carrier whose value exceeds 1 through the DAI. And/or the PDCCH indicating the release of the downlink SPS resource, and/or the information in the ACK/NACK resource indication field in any of the PDCCHs corresponding to the PDSCH transmission on the downlink secondary carrier is allocated to the PUCCH format 3 channel resource of the terminal device, Receiving AC ACK feedback information sent by the terminal device.
  • the receiving module 103 is further configured to:
  • the base station passes the PDCCH and/or DAI of the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1, the ACK/NACK resource indication field in the PDCCH indicating the downlink SPS resource release is greater than 1
  • the ACK/NACK resource indication field in the PDCCH corresponding to the PDSCH transmission on the downlink secondary carrier indicates the same PUCCH format 3 channel resource to the terminal device:
  • Determining the ACK/NACK feedback information sent by the terminal device is determined according to the downlink carrier configured by the terminal device and the transmission mode of each configured downlink carrier.
  • the sending module 102 is specifically configured to:
  • the PDCCH/NACK resource indication field of the PDCCH indicating the downlink SPS resource release and the PDSCH transmission on the corresponding downlink secondary carrier, where the PDCCH and/or the DAI of the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1 is greater than 1.
  • the ACK/NACK resource indication field in the PDCCH indicates different PUCCH format 3 channel resources to the terminal device.
  • the sending module 102 passes the PDCCH and/or DAI of the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1, the ACK/NACK resource indication field of the PDCCH indicating the release of the downlink SPS resource is greater than 1, and
  • the receiving module 103 specifically Used for:
  • the sending module 102 sends the downlink data to the terminal device only on the downlink primary carrier, and the downlink data includes at least one PDSCH transmission on the downlink primary carrier corresponding to the PDCCH with the DAI greater than 1 and/or
  • the receiving module 103 adopts the PUCCH format 3 scheme, and the PDCCH and/or the PDSCH transmitted on the corresponding downlink primary carrier whose value is greater than 1 through the DAI is greater than 1.
  • the information carried in the ACK/NACK resource indication field in the PDCCH indicating that the downlink SPS resource is released is configured to be allocated to the PUCCH format 3 channel resource of the terminal device, and the ACK/NACK feedback sent by the terminal device is received.
  • the base station When the base station sends a PDSCH with a corresponding PDCCH to the terminal device on the downlink secondary carrier, the base station adopts a PUCCH format 3 scheme, and the receiving module 103 transmits the PDCCH on the PDSCH through the corresponding downlink secondary carrier.
  • the information carried in the ACK/NACK resource indication field is configured to be sent to the PUCCH format 3 channel resource of the terminal device, and receives ACK/NACK feedback information sent by the terminal device;
  • the sending module 102 passes the PDSCH transmission on the corresponding downlink primary carrier with the DAI value greater than 1, and/or the ACK/NACK resource indication field of the PDCCH indicating the downlink SPS resource release, and the PDSCH transmission on the corresponding downlink secondary carrier.
  • the ACK/NACK resource indication field in the PDCCH indicates a different PUCCH format 3 channel resource to the terminal device, the receiving module 103 is specifically configured to:
  • the sending module 102 sends the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource to the terminal device only on the downlink primary carrier, and sends the PDSCH transmission on the corresponding downlink primary carrier with the DAI value greater than 1, and/or indicates the downlink SPS.
  • the receiving module 103 adopts the PUCCH format 3 scheme, and performs PDSCH transmission on the corresponding downlink primary carrier whose value of DAI is greater than 1 and/or ACK/NACK resource indication field of the PDCCH indicating downlink SPS resource release.
  • the information is configured to receive ACK/NACK feedback information sent by the terminal device on the PUCCH format 3 channel resource of the terminal device; or
  • the sending module 102 sends the PDSCH to the terminal device on the downlink secondary carrier
  • the receiving module 103 uses the PUCCH format 3 scheme to allocate information in the ACK/NACK resource indication field of the PDCCH that performs PDSCH transmission on the corresponding downlink secondary carrier.
  • the AC ACK feedback information sent by the terminal device is received.
  • the receiving module 103 is further configured to:
  • the base station passes the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1 and/or the ACK/NACK resource indication field of the PDCCH indicating the downlink SPS resource release, and the PDCCH in the PDSCH transmission on the corresponding downlink secondary carrier.
  • the ACK/NACK resource indication field indicates different PUCCH format 3 channel resources to the terminal device:
  • the sending module 102 sends the downlink data to the terminal device only on the downlink primary carrier, and the downlink data includes at least one PDSCH transmission on the downlink primary carrier corresponding to the PDCCH with the DAI greater than 1 and/or
  • the receiving module 103 determines that the ACK/NACK feedback information sent by the terminal device is an ACK of a downlink primary carrier determined according to a transmission mode of a downlink primary carrier, where the DAI is greater than 1 and indicates a PDCCH for releasing the downlink SPS resource. /NACK feedback information;
  • the sending module 102 sends the PDSCH with the corresponding PDCCH to the terminal device on the downlink secondary carrier
  • the receiving module 103 determines that the ACK/NACK feedback information sent by the terminal device is configured according to the UE.
  • the downlink carrier and the transmission mode of each configured downlink carrier are determined;
  • the transmitting module 102 sends the PDSCH and/or the PDCCH indicating the release of the downlink SPS resource to the terminal device only on the downlink primary carrier, and sends the PDSCH transmission on the corresponding downlink primary carrier whose value of the DAI is greater than 1.
  • the receiving module 103 determines that the ACK/NACK feedback information sent by the terminal device is the ACK/NACK feedback information of the downlink primary carrier determined according to the transmission mode of the downlink primary carrier, or
  • the sending module 102 sends the PDSCH to the terminal device on the downlink secondary carrier
  • the receiving module 103 determines that the ACK/NACK feedback information sent by the terminal device is based on the UE.
  • the configured downlink carrier and the transmission mode of each configured downlink carrier are determined.
  • the embodiment of the invention has the following advantages:
  • the PDCCH in the corresponding downlink subcarrier with the DAI value greater than 1 and/or the PDCCH indicating the downlink SPS resource release, and the PDCCH in the PDSCH transmission on the downlink secondary carrier may be implemented by using the technical solution of the embodiment of the present invention.
  • the information in the ACK/NACK resource indication field indicates the PUCCH format 3 channel resource, so that when the terminal device configured with multiple downlink carriers receives data only on the downlink primary carrier, the PUCCH format 3 scheme can also be used to transmit ACK/NACK feedback.
  • the information thereby avoiding inconsistent understanding between the base station and the terminal device for the transmission scheme of the ACK/NACK feedback information, improves the reliability and efficiency of the ACK/NACK feedback information transmission.
  • the embodiments of the present invention can be implemented by hardware or by means of software plus a necessary general hardware platform.
  • the technical solution of the embodiment of the present invention may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a USB flash drive, a mobile hard disk, etc.).
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various implementations of the embodiments of the present invention.
  • modules in the apparatus in the implementation scenario may be distributed in the apparatus for implementing the scenario according to the implementation scenario description, or may be correspondingly changed in one or more devices different from the implementation scenario.
  • the modules of the above implementation scenarios may be combined into one module, or may be further split into multiple sub-modules.

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Abstract

本发明实施例公开了一种ACK/NACK反馈信息的传输方法和设备,通过应用本发明实施例的技术方案,可以实现通过DAI的取值大于1的对应下行主载波上PDSCH传输和/或指示下行SPS资源释放的PDCCH,以及对应下行辅载波上PDSCH传输的PDCCH中的ACK/NACK资源指示域中的信息指示PUCCHformat3信道资源,使配置了多个下行载波的终端设备在只在下行主载波上接收到数据时,同样可采用PUCCHformat3方案传输ACK/NACK反馈信息,从而,避免基站与终端设备对于ACK/NACK反馈信息的传输方案的理解不一致,提高ACK/NACK反馈信息传输的可靠性和效率。

Description

ACK/NACK反馈信息的传输方法和设备 本申请要求于 2011 年 4 月 29 日提交中国专利局, 申请号为 201110110846.7,发明名称为 "ACK/NACK反馈信息的传输方法和设 备"的中国专利申请的优先权,其全部内容通过引用结合在本申请中。 技术领域
本发明涉及通信技术领域, 特别涉及一种 ACK/NACK反馈信息 的传输方法和设备。 背景技术
对于 LTE-A ( Long Term Evolution Advanced, 长期演进升级 ) 系 统,, 为支持比 LTE ( Long Term Evolution, 长期演进 )系统更宽的系 统带宽, 比如 100MHz, —种可能是直接分配 100M带宽的频谱, 如 图 1所示; 一种可能是 CA ( Carrier Aggregation, 载波聚合)技术, 即将分配给现有的系统一些频谱聚合起来, 凑成大带宽供给 LTE-A 多载波系统使用, 此时, 系统中上下行载波可以不对称配置, 即用户 可能会占用 N > 1个载波进行下行传输, M > 1个载波进行上行传输, 如图 2所示。
LTE-A系统目前确定最多可支持 5个载波进行聚合,一个 LTE-A UE ( User Equipment , 用户设备, 即终端设备 )需要在同一个上行子 帧内反馈对应多个下行载波及下行子帧的 ACK ( ACKnowledgement, 肯定确认 ) /NACK ( Negative ACKnowledgement, 否定确认 )反馈信 息。即 UE在上行子帧 n中将反馈对应多个下行载波上的下行子帧 n-k 上的数据的 ACK/NACK反馈信息, k K, 集合 的取值与系统的上 下行配置及具体的子帧编号有关, 如表 1所示。 因此, 在 LTE-A系 统中, 定义了一种新的 PUCCH ( Physical Uplink Control Channel, 物 理上行控制信道) format (格式) 3方案作为多比特 ACK/NACK反 馈信息的复用传输方案。 PUCCH format 3传输方案的最大传输比特 数为 20比特。为了避免基站和 UE对 ACK/NACK反馈信息的比特数 的理解不一致, UE基于配置的下行载波以及每个下行载波的传输模 式确定 ACK/NACK反馈信息的比特数。 特别的, 对于上下行配置 0 和 5在常规循环前缀( CP, Cyclic Prefix ) 下, 以及上下行配置 0和 4在扩展 CP下的特殊下行子帧, 可不计算在内, 即 M可不包括该子 帧, UE不对该子帧反馈 ACK/NACK反馈信息。
Downlink association set index K:
Figure imgf000004_0001
在 LTE-A TDD ( Time Division Duplex, 时分双工 ) 系统中, 配 置使用物理上行控制信道 PUCCH format 3传输 ACK/NACK的 UE, 基站将通过高层信令预先半静态的为其配置 4个 PUCCH format 3信 道资源, 在进行下行数据调度时通过下行控制信道 PDCCH ( Physical Downlink Control Channel, 物理下行控制信道)动态的指示 UE具体 使用哪一个信道资源传输 PUCCH。
目前确定 LTE-A TDD系统中,对于配置了多个下行载波的 Rel- 10 UE, 对应在下行主载波上传输的 PDSCH ( Physical Downlink Shared Channel , 物理下行共享信道) 的 PDCCH 和指示下行 SPS ( Semi-persistant Scheduling, 半持续 )资源释放的 PDCCH中的 TPC ( Transmit Power Control,发射功率控制 )域用于承载功率控制命令, 对应在下行辅载波上传输的 PDSCH的 PDCCH中的 TPC域( 2比特) 用作 ARI ( ACK/NACK Resource Indicator, ACK/NACK资源指示), 指示一个配置给 UE使用的 PUCCH format 3信道资源, 该信道资源 为高层预先配置的 4组 PUCCH format 3信道资源中的一组, 且在同 中的 ARI应指示相同的资源。 对于单端口传输, 一组中只有一个 format 3资源, 对于多端口 ( 2端口)传输, 一组中包括 2个 format 3 资源, 分别对应不同的天线端口。 如果 UE只在下行主载波上接收到 了数据(PDSCH或指示下行 SPS资源释放的 PDCCH ), 由于调度这 些数据的 PDCCH中的 TPC承载的是功率控制命令而非 ARI, UE无 法获得 PUCCH format 3信道资源, 因此, 无法使用 PUCCH format 3 传输方案传输 ACK/NACK反馈信息,此时, UE只能在 PUCCH format la/lb资源上采用 PUCCH format la/lb或者 channel selection (信道选 择)传输方案发送 ACK/NACK反馈信息。 当基站在下行辅载波上存 在数据传输而 UE 丟失了下行辅载波上的数据时, 基站与 UE 对 ACK/NACK传输方案的理解可能不一致, 因此,基站需要在 PUCCH format 3和 PUCCH format la/lb信道资源上进行盲检, 才能确定 UE 采用哪种传输方案,从而正确获得 UE发送的 ACK/NACK反馈信息。
此外, 对于只配置了一个下行载波的 Rel-10 UE, 基站也可以配 置 UE使用 PUCCH format 3传输多比特 ACK/NACK反馈信息,由于 此时不需要对单载波上的 ACK/NACK 反馈信息进行空间合并 ( Spatial Bundling ), 可以提高 ACK/NACK传输效率。 此时, 配置的 一个下行载波上(即下行主载波)上的 DAI ( Downlink Assignment Index, 下行分配序号)取值为 1的 PDCCH中的 TPC域用于 载功 率控制信令, 而 DAI取值大于 1的 PDCCH中的 TPC域( 2比特 ) 用作 ARI, 指示一个配置给 UE使用的 PUCCH format 3信道资源, 该信道资源为高层预先配置的 4组 PUCCH format 3信道资源中的一 个 PDCCH中的 ARI应指示相同的资源。对于单端口传输,一组中只 有一个 format 3资源, 对于多端口 (2端口)传输, 一组中包括 2个 format 3资源, 分别对应不同的天线端口。 若 UE在反馈窗口内只收 到了 SPS PDSCH, 则 UE在由高层配置的 PUCCH资源上反馈 SPS PDSCH对应的 ACK/NACK反馈信息。若 UE在反馈窗口内只收到了 DAI的取值为 1的 PDCCH,则 UE在该 PDCCH对应的 Rel-8资源上 反馈 ACK/NACK反馈信息。
因此, 在 LTE-A TDD系统中, 当配置了多个下行载波的 Rel-10 UE只在下行主载波上接收到数据时,如何使用 PUCCH format 3方案 传输 ACK/NACK反馈信息还没有明确方案。
在实现本发明实施例的过程中,申请人发现现有技术至少存在以 下问题:
在 LTE-A TDD系统中 , 对于配置了多个下行载波的 Rel-10 UE, 当 UE采用 PUCCH format 3方案传输 ACK/NACK反馈信息时,如果 只在下行主载波上接收到数据, 由于 UE无法获得 PUCCH format 3 信道资源, 不能采用 PUCCH format 3方案传输 ACK/NACK反馈信 息, 只能在 PUCCH format la/lb资源上采用 PUCCH format la/lb或 channel selection方案传输 ACK/NACK反馈信息,影响了 ACK/NACK 传输可靠性和效率。
发明内容
本发明实施例提供一种 ACK/NACK反馈信息的传输方法和设 备,解决在现有技术中对于配置了多个下行载波的终端设备只在下行 主载波上接收到数据时无法采用 PUCCH format 3 方案进行 ACK/NACK反馈信息传输的问题。
为达到上述目的, 本发明实施例一方面提供了一种 ACK/NACK 反馈信息的传输方法, 包括:
配置了多个下行载波的终端设备在 N个下行载波中的 M个下行 子帧接收数据, 其中, N > 1 , 1 < M < 4, 所述 M个下行子帧中的数 据所对应的 ACK/NACK反馈信息在同一个上行子帧中传输;
所述终端设备根据接收到的 PDCCH中的 ACK/NACK资源指示 域携带的信息确定 PUCCH format 3信道资源, 其中, 所述 PDCCH 包括 DAI的取值大于 1的对应下行主载波上 PDSCH传输的 PDCCH 和 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH,以及对应 下行辅载波上 PDSCH传输的 PDCCH;
所述终端设备在所述确定的 PUCCH format 3 信道资源上采用
PUCCH format 3方案传输 ACK/NACK反馈信息。
另一方面, 本发明实施例还提供了一种终端设备, 包括: 接收模块, 用于在配置的多个下行载波中的 N个下行载波中的
M个下行子帧接收数据, 其中, N > 1 , 1 < M < 4, 所述 M个下行子 帧中的数据所对应的 ACK/NACK反馈信息在同一个上行子帧中传 输;
确定模块, 用于根据所述接收模块所接收到的 PDCCH 中的 ACK/NACK资源指示域携带的信息确定 PUCCH format 3信道资源 , 其中, 所述 PDCCH 包括 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输的 PDCCH和 DAI的取值大于 1的指示下行 SPS资源释 放的 PDCCH, 以及对应下行辅载波上 PDSCH传输的 PDCCH;
发送模块, 用于在所述确定模块所确定的 PUCCH format 3信道 资源上采用 PUCCH format 3方案传输 ACK/NACK反馈信息。
另一方面, 本发明实施例还提供了一种 ACK/NACK反馈信息的 传输方法, 包括:
基站确定配置给配置了多个下行载波的终端设备的 PUCCH format 3信道资源;
所述基站将所述确定的 PUCCH format 3 信道资源携带在 PDCCH的 ACK/NACK资源指示域中发送给所述终端设备, 其中, 所述 PDCCH包括 DAI的取值大于 1的对应下行主载波上 PDSCH传 输的 PDCCH 和 DAI 的取值大于 1 的指示下行 SPS 资源释放的 PDCCH, 以及对应下行辅载波上 PDSCH传输的 PDCCH;
所述基站在所述确定的 PUCCH format 3信道资源采用 PUCCH format 3方案接收所述终端设备发送的 ACK/NACK反馈信息。
另一方面, 本发明实施例还提供了一种基站, 包括:
配置模块, 用于确定配置给配置了多个下行载波的终端设备的 PUCCH format 3信道资源;
发送模块, 用于将所述配置模块所确定的 PUCCH format 3信道 资源携带在 PDCCH的 ACK/NACK资源指示域中发送给所述终端设 备,其中, 所述 PDCCH包括 DAI的取值大于 1的对应下行主载波上 PDSCH传输的 PDCCH和 DAI的取值大于 1的指示下行 SPS资源释 放的 PDCCH, 以及对应下行辅载波上 PDSCH传输的 PDCCH;
接收模块, 用于根据所述配置模块所确定的 PUCCH format 3信 道资源采用 PUCCH format 3 方案接收所述终端设备发送的 AC謹 ACK反馈信息。
与现有技术相比, 本发明实施例具有以下优点: 通过应用本发明实施例的技术方案, 可以实现通过 DAI的取值 大于 1的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放 的 PDCCH, 以及对应下行辅载波上 PDSCH传输的 PDCCH 中的 ACK/NACK资源指示域中的信息指示 PUCCH format 3信道资源,使 配置了多个下行载波的终端设备在只在下行主载波上接收到数据时, 同样可采用 PUCCH format 3方案传输 ACK/NACK反馈信息, 从而, 避免基站与终端设备对于 ACK/NACK反馈信息的传输方案的理解不 一致, 提高 ACK/NACK反馈信息传输的可靠性和效率。 附图说明
图 1为现有技术中单频语系统示意图;
图 2为现有技术中频谱聚合系统示意图;
图 3为本发明实施例提出的一种 ACK/NACK反馈信息的传输方 法的流程示意图;
图 4为本发明实施例提出的一种 ACK/NACK反馈信息的传输方 法的流程示意图;
图 5为本发明实施例提出的一种具体应用场景下的 ACK/NACK 反馈信息的传输方法的流程示意图;
图 6为本发明实施例提出的一种具体应用场景下的 ACK/NACK 反馈信息的传输方法的流程示意图;
图 7为本发明实施例提出的一种具体应用场景下的 ACK/NACK 反馈信息的传输方法的流程示意图;
图 8为本发明实施例提出的一种具体应用场景下的 ACK/NACK 反馈信息的传输方法的流程示意图;
图 9为本发明实施例提出的一种终端设备的结构示意图; 图 10为本发明实施例提出的一种基站的结构示意图。 具体实施方式
下面结合附图和实施例,对本发明的具体实施方式作进一步详细 描述:
如背景技术所述, 对于 LTE-A系统中具有 CA能力的终端设备, 可以采用 PUCCH format3传输多比特 ACK/NACK反馈信息。 但是, 当这样的终端设备被配置了多个下行载波,但只在下行主载波上接收 到数据时, 如何采用 PUCCH format 3传输 ACK/NACK反馈信息, 却还没有明确的方案。
基于以上原因, 本发明实施例给出了一种通过 PDCCH 中的 ACK/NACK资源指示域中的信息指示 PUCCH format 3信道资源 ,以 便使终端设备与基站之间采用 PUCCH format3 传输多比特 ACK/NACK反馈信息的方法, 即使在终端设备只在下行主载波上接 收到数据传输时, 也可以采用 PUCCH format 3传输 ACK/NACK反 馈信息。
如图 3所示, 为本发明实施例提出的一种 ACK/NACK反馈信息 的传输方法的流程示意图, 该方法具体包括以下步骤:
步骤 S301、 配置了多个下行载波的终端设备在 N个下行载波中 的 M个下行子帧接收数据。
其中, N > 1 , 1 < M < 4 , M 个下行子帧中的数据所对应的 ACK/NACK反馈信息在同一个上行子帧中传输。
步骤 S302、终端设备根据接收到的 PDCCH中的 ACK/NACK资 源指示域携带的信息确定 PUCCH format 3信道资源。
其中, PDCCH包括下行分配序号 DAI的取值大于 1的对应下行 主载波上 PDSCH传输的 PDCCH和 DAI的取值大于 1的指示下行 SPS 资源释放的 PDCCH,以及对应下行辅载波上 PDSCH传输的 PDCCH, 即 PDCCH可分为两类,一类为 DAI的取值大于 1的对应下行主载波 上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH, 另一类为对 应下行辅载波上 PDSCH传输的 PDCCH。
在具体的应用场景中, 上述的 DAI的取值大于 1 的对应下行主 载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH, 具体包 括以下信息的一种或多种:
调度动态 PDSCH的 PDCCH;
指示 SPS PDSCH激活的 PDCCH;
指示 SPS资源释放的 PDCCH。
在实施本发明实施例所提出的技术方案的过程中,根据系统中发 送的上述两类 PDCCH中的 ACK/NACK资源指示信息是否相同, 本 步骤中对于 PUCCH format 3 信道资源的确定过程包括以下两种方 式。
方式一、 系统中, 采用 DAI的取值大于 1的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH中的 ACK/NACK 资源指示域所指示的 PUCCH format 3信道资源, 与对应下行辅载波 上 PDSCH传输的 PDCCH 中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道资源相同的方式指示 PUCCH format 3信道资 源。
在此种方式下, 具体根据哪类 PDCCH中的 ACK/NACK资源指 示域进行 PUCCH format 3信道资源的确定, 需要根据相应的信息接 收情况来确定, 具体说明如下:
( 1 ) 当终端设备只在下行主载波上接收到下行数据, 且下行数 据至少包含一个 DAI的取值大于 1的 PDCCH对应的下行主载波上的 PDSCH传输和 /或 DAI 的取值大于 1 的指示下行 SPS 资源释放的 PDCCH 时, 终端设备根据 DAI 的取值大于 1 的 PDCCH 中的 ACK/NACK资源指示域携带的信息确定 PUCCH format 3信道资源。
( 2 ) 当终端设备在下行辅载波上接收到有对应 PDCCH 的 PDSCH时(此种情况包括 UE仅在下行辅载波上接收到数据, 或者, UE在下行辅载波和下行主载波上都接收到数据, 其中下行主载波上 的数据接收情况又可以分为包含 DAI取值大于 1的 PDCCH对应的下 行主载波上的 PDSCH传输和 /或 DAI的取值大于 1的指示下行 SPS 资源释放的 PDCCH的情况, 以及不包含的情况), 终端设备根据对 应下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示 域携带的信息确定 PUCCH format 3信道资源; 如果终端设备同时在 下行主载波上接收到下行数据, 且下行数据至少包含一个 DAI的取 值大于 1 的 PDCCH对应的下行主载波上的 PDSCH传输和 /或 DAI 的取值大于 1的指示下行 SPS资源释放的 PDCCH, 则终端设备根据 DAI的取值大于 1的 PDCCH、 以及对应下行辅载波上 PDSCH传输 的 PDCCH 中的 ACK/NACK 资源指示域携带的信息确定 PUCCH format 3信道资源。
在此种方式下, 上述场景( 1 )和(2 ) 中, 所述 DAI 的取值大 于 1的 PDCCH包括 DAI的取值大于 1的对应下行主载波上 PDSCH 传输的 PDCCH和 DAI的取值大于 1 的指示下行 SPS 资源释放的 PDCCH, DAI的取值大于 1的 PDCCH中的 ACK/NACK资源指示域 所指示的 PUCCH format 3信道资源, 与对应下行辅载波上 PDSCH 传输的 PDCCH中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道资源相同。
上述场景( 1 )和(2 ) 中, 终端设备根据配置的下行载波以及每 个配置的下行载波的传输模式确定 ACK/NACK反馈信息。 或者, 将 上述场景( 1 )和(2 )合并在一起描述, 即为, 当终端设备只在下行 主载波上接收到 PDSCH和 /或指示下行 SPS资源释放的 PDCCH, 且 接收到 DAI的取值大于 1的对应下行主载波上 PDSCH传输和 /或指 示下行 SPS资源释放的 PDCCH时,或者当终端设备在下行辅载波上 接收到 PDSCH时,终端设备根据 DAI的取值大于 1的对应下行主载 波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH,和 /或对应 下行辅载波上 PDSCH 传输的 PDCCH 中的任一 PDCCH 中的 ACK/NACK资源指示域中的信息确定 PUCCH format 3信道资源。
进一步的, 在此种方式下, 根据上述场景 (2 ) 中所包含的具体 接收情况, 还可以根据如下信息接收情况来确定 PUCCH format 3信 道资源, 具体说明如下。 ( 1 ) 当终端设备只在下行主载波上接收到 PDSCH和 /或指示下 行 SPS资源释放的 PDCCH,且接收到 DAI的取值大于 1的对应下行 主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH时,终 端设备根据 DAI的取值大于 1的对应下行主载波上 PDSCH传输和 / 或指示下行 SPS 资源释放的 PDCCH 中的任一 PDCCH 中的 ACK/NACK资源指示域中的信息确定 PUCCH format 3信道资源。
( 2 ) 当终端设备只在下行辅载波上接收到 PDSCH 时, 终端设 备根据对应下行辅载波上 PDSCH传输的 PDCCH中的任一 PDCCH 中的 ACK/NACK资源指示域中的信息确定 PUCCH format 3信道资 源。
( 3 ) 当终端设备在下行主载波上接收到 PDSCH和 /或指示下行 SPS资源释放的 PDCCH以及 DAI的取值大于 1的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH, 且在下行辅载 波上接收到 PDSCH时,终端设备根据 DAI的取值大于 1的对应下行 主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH, 以及 对应下行辅载波上 PDSCH传输的 PDCCH中的任意一个 PDCCH中 的 ACK/NACK资源指示域中的信息确定 PUCCH format 3信道资源。
在此种方式下, 由于两类 PDCCH ( DAI的取值大于 1的对应下 行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH, 以 及对应下行辅载波上 PDSCH传输的 PDCCH )的 ACK/NACK资源指 示域中的信息内容相同,所以,无论应用哪类 PDCCH的 ACK/NACK 资源指示域中的信息, 终端设备所确定的 PUCCH format 3信道资源 都是一样的, 实际上, 上述的(1 )至(3 ) 中只是分别在确保接收到 PDCCH后, 根据相应的 PDCCH确定 PUCCH format 3信道资源, 可 以将上述( 1 ) 至( 3 )合并, 对应同一种 PUCCH format 3资源确定 情况。 此外, 同一类 PDCCH 中如果存在多个, 每个 PDCCH 中的 ACK/NACK资源指示域的信息应指示相同的 PUCCH format 3信道资 源, 因此, 在本方式中, 终端设备采用上述两类 PDCCH中任一接收 到的一个 PDCCH中的 ACK/NACK资源指示域的信息确定的 PUCCH format 3信道资源都一样。
需要指出的是, 对于本方式, 为了保证处理规则的一致性, 如果 出现终端设备实际接收到的 PDCCH中的 ACK/NACK资源指示域中 的信息与所设定的规则不符的情况(如两类 PDCCH中的 ACK/NACK 资源指示域中的信息内容不同), 那么, 终端设备可以认为当前调度 出现错误, 而不进行 ACK/NACK反馈信息的传输, 或者, 也可以选 择一种类型的 PDCCH中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道资源进行 ACK/NACK反馈信息的传输, 这样的变化并 不影响本发明实施例的保护范围。
进一步的, 在本方式中, 无论是上述的 (1 )至(3 ) 中的那种场 景,终端设备均是根据配置的下行载波以及每个配置的下行载波的传 输模式确定 ACK/NACK 反馈信息, 以避免终端设备和基站对 ACK/NACK反馈比特数的理解不一致。 例如, 终端设备配置了 N个 下行载波,每个下行载波的传输码字为 d,对于单码字传输模式的载 波(^=1 , 对于多码字传输模式的载波 d=2, M为每个上行子帧对应 的需要进行 ACK/NACK反馈的下行子帧数, 如背景技术部分的表 1
Y - C,.
所示, 当 不超过 PUCCH format 3的最大传输比特数 20比特 时, 不对多码字的 ACK/NACK反馈信息进行空间合并, 终端设备产
V - C,.
生的 ACK/NACK反馈比特数为 ,终端设备对每个下行载波上 的每个下行子帧根据传输模式产生 ACK/NACK反馈信息, 对多码字 传输模式的下行载波上的每个下行子帧中产生 2比特 ACK/NACK反 馈信息, 分别对应每个码字, 对单码字传输模式的下行载波上的每个 下行子帧产生 1比特 ACK/NACK反馈信息, 对没有接收到数据的多 码字传输模式的下行载波上的下行子帧产生 2比特 NACK作为反馈 信息,对没有接收到数据的单码字传输模式的下行载波上的下行子帧 产生 1比特 NACK作为反馈信息; 当超过 PUCCH format 3的最大传 输比特数 20比特时, 需要对多码字的 ACK/NACK反馈信息进行空 间合并, 此时终端设备对同一个下行子帧中的多个码字的
ACK/NACK反馈信息进行逻辑与操作 (即空间合并), 即对每个下行 载波上每个下行子帧产生 1比特 ACK/NACK反馈信息。 方式二、 系统中, 采用 DAI的取值大于 1的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH中的 ACK/NACK 资源指示域所指示的 PUCCH format 3信道资源, 与对应下行辅载波 上 PDSCH传输的 PDCCH 中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道资源不同的方式指示 PUCCH format 3信道资 源。
在此种方式下, 具体根据哪类 PDCCH中的 ACK/NACK资源指 示域进行 PUCCH format 3信道资源的确定, 需要根据相应的信息接 收情况来确定, 具体说明如下。
( 1 ) 当终端设备只在下行主载波上接收到下行数据, 且下行数 据至少包括一个 DAI的取值大于 1的 PDCCH对应的下行主载波上的 PDSCH传输和 /或 DAI 的取值大于 1 的指示下行 SPS 资源释放的 PDCCH 时, 终端设备根据 DAI 的取值大于 1 的 PDCCH 中的 ACK/NACK资源指示域携带的信息确定 PUCCH format 3信道资源; 具体的,即当终端设备只在下行主载波上接收到 PDSCH和 /或指 示下行 SPS资源释放的 PDCCH,且接收到 DAI的取值大于 1的对应 下行主载波上 PDSCH传输和 /或指示下行 SPS 资源释放的 PDCCH 时,终端设备根据 DAI的取值大于 1的对应下行主载波上 PDSCH传 输和 /或指示下行 SPS 资源释放的 PDCCH 中任一 PDCCH 中的 ACK/NACK资源指示域中的信息确定 PUCCH format 3信道资源。
在此种场景下, 终端设备根据下行主载波的传输模式, 只对下行 主载波确定 ACK/NACK反馈信息, 以提高 ACK/NACK反馈信息的 传输效率和性能。
进一步的, 在此种场景下, 终端设备可以对下行主载波上同一个 下行子帧中的多码字的 ACK/NACK反馈信息不进行空间合并, 以提 高 ACK/NACK传输效率, 避免不必要的系统重传。 例如, 当前上行 子帧对应的需要进行 ACK/NACK反馈的下行子帧数为 M, 如背景技 术部分中的表 1所示, 当下行主载波为单码字传输模式时, 终端设备 对下行主载波上 M 个下行子帧中的每个下行子帧产生 1 比特 ACK/NACK反馈信息, 对没有接收到数据的下行子帧产生 NACK作 为反馈信息,得到 M比特 ACK/NACK反馈信息; 当下行主载波为多 码字传输模式时, 终端设备对下行主载波上 M个下行子帧中的每个 下行子帧产生 2比特 ACK/NACK反馈信息, 分别对应每个下行子帧 中的每个码字, 对没有接收到数据的下行子帧产生 2比特 NACK作 为反馈信息, 得到 2M比特 ACK/NACK反馈信息。
( 2 ) 当终端设备在下行辅载波上接收到有对应 PDCCH 的 PDSCH时, 终端设备根据对应下行辅载波上 PDSCH传输的 PDCCH 中的 ACK/NACK资源指示域携带的信息确定 PUCCH format 3信道 资源。
具体的, 只要终端设备在下行辅载波上接收到 PDSCH, 终端设 备根据下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源 指示域中的信息确定 PUCCH format 3信道资源。 具体包括, 当终端 设备仅在下行辅载波上接收到 PDSCH时, 终端设备根据下行辅载波 上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域中的信息确 定 PUCCH format 3信道资源; 或者, 当终端设备在下行辅载波上接 收到 PDSCH并且同时在下行主载波上接收到下行数据时, 不论下行 主载波上接收到的下行数据是否包含 DAI取值大于 1的 PDCCH对应 的下行主载波上的 PDSCH传输和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH, 终端设备都根据下行辅载波上 PDSCH传 输的 PDCCH 中的 ACK/NACK 资源指示域中的信息确定 PUCCH format 3信道资源。
在此种场景下,终端设备根据配置的下行载波以及每个配置的下 行载波的传输模式确定 ACK/NACK反馈信息, 以避免终端设备和基 站对 ACK/NACK反馈比特数的理解不一致。 具体的 ACK/NACK反 馈比特数确定和 ACK/NACK反馈比特的产生过程同方式一中所述, 在此不赘述。
在此种方式下, 上述场景( 1 )和(2 ) 中, DAI取值大于 1的 PDCCH包括 DAI的取值大于 1的对应下行主载波上 PDSCH传输的 PDCCH、 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH, DAI取值大于 1 的 PDCCH中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道资源,与所述对应下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道 资源不同。
需要指出的是, 由于两类 PDCCH ( DAI的取值大于 1的对应下 行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH, 以 及对应下行辅载波上 PDSCH传输的 PDCCH )的 ACK/NACK资源指 示域中的信息内容不同, 所以, 终端设备在上述方式二中的场景( 1 ) 和场景(2 )中所确定的 PUCCH format 3信道资源不同, 实际上, 通 过使用不同的 PUCCH format 3信道资源发送 ACK/NACK反馈信息, 可以区分不同的终端设备接收数据情况以及终端设备发送的 ACK/NACK反馈信息的实际为根据哪个或哪些下行载波产生的反馈 信息。
需要指出的是, 对于上述的两种方式, 为了保证在存在多个下行 资源指示域中的信息来确定 PUCCH format 3信道资源, 不会因为同 种类型的多个 PDCCH中的信息差异而产生理解分歧, 所以, 需要进 行以下设置。
A、终端设备所接收到的多个 DAI的取值大于 1的对应下行主载 波上 PDSCH传输的 PDCCH以及 DAI的取值大于 1的指示下行 SPS 资源释放的 PDCCH中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道资源相同。
具体的, 终端设备所接收到的多个 DAI的取值大于 1的对应下 行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH中的 ACK/NACK资源指示域中所指示的 PUCCH format 3信道资源相同。 B、 终端设备所接收到的多个对应下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道 资源相同。
因此, 对于方式一, 无论终端设备根据 2类 PDCCH中的哪类中 的哪个 PDCCH中的 ACK/NACK资源指示域确定 PUCCH format 3信 道资源, 所确定的资源都是同一个 /一组资源; 对于方式二, 当终端 设备根据接收情况选择一类 PDCCH用于确定 PUCCH format 3信道 资源时, 无论终端设备根据这类 PDCCH 中的哪个 PDCCH 中的 ACK/NACK资源指示域确定 PUCCH format 3信道资源,所确定的资 源都是同一个 /一组资源。
需要指出的是, 当终端设备接收到的多个 PDCCH 中的 ACK/NACK资源指示域的信息不满足上述 A和 B条件时, 终端设备 可以认为当前调度出现错误,而不进行 ACK/NACK反馈信息的传输, 或者, 也可以在接收场景对应的一种类型的 PDCCH 中选择一个 PDCCH中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道 资源进行 ACK/NACK反馈信息的传输, 这样的变化并不影响本发明 实施例的保护范围。
需要指出的是, 当 PUCCH format 3为单端口传输模式时, 上述 两种方式下 PDCCH中的资源指示域的指示值对应高层预先配置的多 个 PUCCH format 3信道资源中的一个资源; 当 PUCCH format3为多 端口 (2端口)传输模式, 即 SORTD ( Spatial Orthogonal Resource Transmit Diversity, 空间正交资源发送分集 )模式时, DAI的取值大 于 1的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH以及对应下行辅载波上 PDSCH传输的 PDCCH中的资源指示 域的指示值对应高层预先配置的多组 PUCCH format 3信道资源中的 一组资源, 每组资源中包括 2个 PUCCH format 3信道资源, 分别对 应不同的天线端口。
需要指出的是, 上述 PDCCH中的 ACK/NACK资源指示域可以 为 PDCCH中现有比特域的重用,例如重用 2比特 TPC指示域,或者 为 PDCCH中新增加的比特域。
步骤 S303、 终端设备在确定的 PUCCH format 3信道资源上采用 PUCCH format 3方案传输 ACK/NACK反馈信息。 相对应的, 为了实现上述的技术方案, 在基站侧, 需要完成 PUCCH format 3信道资源的配置和指示的处理, 具体的处理过程过 程示意图如图 4所示, 包括以下步骤:
步骤 S401、 基站确定配置给配置了多个下行载波的终端设备的 PUCCH format 3信道资源。
步骤 S402、 基站将所确定的 PUCCH format 3信道资源携带在 PDCCH的 ACK/NACK资源指示域中发送给终端设备。
其中, PDCCH 包括 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输的 PDCCH和 DAI的取值大于 1的指示下行 SPS资源释 放的 PDCCH, 以及对应下行辅载波上 PDSCH传输的 PDCCH, 即 PDCCH可分为两类, 一类为 DAI的取值大于 1的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH, 另一类为对应 下行辅载波上 PDSCH传输的 PDCCH。
在具体的应用场景中, 上述的 DAI的取值大于 1 的对应下行主 载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH, 具体包 括以下信息的一种或多种:
调度动态 PDSCH的 PDCCH;
指示 SPS PDSCH激活的 PDCCH;
指示 SPS资源释放的 PDCCH。
由于存在上述的两种类型的 PDCCH, 则对于两种 PDCCH中的 ACK/NACK资源指示域的信息内容是否相同, 基站可以通过以下两 种方式发送 PDCCH中的 ACK/NACK资源指示信息。
当然,在实际应用中,确定相应方式可以是接收外界的指示消息, 也可以是在基站中直接配置相应的规则,或者默认为采用其中的某一 种方式进行工作, 这样的变化并不影响本发明的保护范围。
方式一、基站通过 DAI的取值大于 1的对应下行主载波上 PDSCH 传输的 PDCCH和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH , 与对应下行辅载波上 PDSCH 传输的 PDCCH 中的 ACK/NACK资源指示域指示相同的 PUCCH format 3信道资源给终端 设备。
此种方式下, 基站只需要确定一个(PUCCH format 3单端口传 输) /一组( PUCCH format 3多端口传输) PUCCH format 3信道资源, 并在所有基站发送的 DAI的取值大于 1的对应下行主载波上 PDSCH 传输和 /或指示下行 SPS资源释放的 PDCCH,以及对应下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域中指示给终端设 备。
方式二、基站通过 DAI的取值大于 1的对应下行主载波上 PDSCH 传输的 PDCCH和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH , 与对应下行辅载波上 PDSCH 传输的 PDCCH 中的 ACK/NACK资源指示域指示不同的 PUCCH format 3信道资源给终端 设备。
此种方式下, 基站需要确定两个(PUCCH format 3单端口传输) /两组( PUCCH format 3多端口传输) PUCCH format 3信道资源, 并 在基站发送的 DAI的取值大于 1的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH中 ACK/NACK资源指示域中指 示给终端设备其中一个 /一组 PUCCH format 3信道资源, 在对应下行 辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域中指 示给终端设备另一个 /一组 PUCCH format 3信道资源。
步骤 S403、 基站根据所确定的 PUCCH format 3信道资源采用 PUCCH format 3方案接收终端设备发送的 ACK/NACK反馈信息。
需要指出的是, 由于在步骤 S402中存在两种信息内容的发送方 式, 所以, 相对应的, 在本步骤中, 同样对应不同的发送方式, 存在 不同的处理过程。 对应步骤 S402中的方式一, 即述基站通过 DAI的取值大于 1的 对应下行主载波上 PDSCH传输的 PDCCH和 /或 DAI的取值大于 1 的指示下行 SPS资源释放的 PDCCH中的 ACK/NACK资源指示域, 与对应下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源 指示域指示相同的 PUCCH format 3信道资源给终端设备时, 本步骤 中具体通过哪种类型的 PDCCH中的 ACK/NACK资源指示域指示的 PUCCH format 3信道资源进行 ACK/NACK反馈信息的接收,需要根 据相应的信息发送情况来确定, 根据不同的信息发送情况, 本步骤中 的处理过程具体说明如下。
当基站只在下行主载波上向终端设备发送了下行数据,且下行数 据至少包括一个 DAI的取值大于 1的 PDCCH对应的下行主载波上的 PDSCH传输和 /或 DAI 的取值大于 1 的指示下行 SPS 资源释放的 PDCCH 时, 或者当基站在下行辅载波上向终端设备发送了有对应 PDCCH的 PDSCH时, 基站采用 PUCCH format 3方案, 在通过发送 的具有 ACK/NACK资源指示域的 PDCCH配置给终端设备的 PUCCH format 3信道资源上, 接收终端设备发送的 ACK/NACK反馈信息, 其中, 发送的具有 ACK/NACK资源指示域的 PDCCH包括 DAI的取 值大于 1的对应下行主载波上 PDSCH传输的 PDCCH和 DAI的取值 大于 1的指示下行 SPS资源释放的 PDCCH, 以及对应下行辅载波上 PDSCH传输的 PDCCH。 具体可以分为如下场景:
场景一、 当基站只在下行主载波上向终端设备发送了下行数据, 且下行数据至少包括一个 DAI的取值大于 1的 PDCCH对应的下行主 载波上的 PDSCH传输和 /或 DAI的取值大于 1的指示下行 SPS资源 释放的 PDCCH 时, 即基站只在下行主载波上向终端设备发送了 PDSCH和 /或指示下行 SPS资源释放的 PDCCH, 且发送了 DAI的取 值大于 1的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释 放的 PDCCH时, 基站采用 PUCCH format 3方案, 在通过 DAI的取 值大于 1的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释 放的 PDCCH中的任一 PDCCH中的 ACK/NACK资源指示域中的信 息配置给终端设备的 PUCCH format 3信道资源上, 接收终端设备发 送的 ACK/NACK反馈信息。
在此种场景下, 如果基站在所确定的 PUCCH format 3信道资源 上, 没有接收到终端设备发送的 ACK/NACK反馈信息, 则基站相应 的处理过程包括以下两种方式:
( 1 )基站判断终端设备丟失了所有 DAI的取值大于 1的 PDCCH 对应的下行主载波上的数据传输(包括 PDSCH传输和指示下行 SPS 资源释放的 PDCCH传输), 基站重传下行主载波上的所有数据。
( 2 )基站判断终端设备丟失了所有 DAI的取值大于 1的 PDCCH 对应的下行主载波上的数据传输(包括 PDSCH传输和指示下行 SPS 资源释放的 PDCCH传输), 进一步, 基站在 PUCCH format la/lb信 道资源上检测 ACK/NACK反馈信息。
如果检测到 ACK/NACK, 则根据该反馈信息确定下行主载波上 DAI值等于 1的 PDCCH对应的数据的重传和 /或下行主载波上 SPS PDSCH的重传, 并重传下行主载波上所有 DAI值大于 1的 PDCCH 对应的数据; 如果未检测到 ACK/NACK, 则基站判断终端设备丟失 所有数据(即 DTX ), 基站重传下行主载波上的所有数据。
具体采用上述的哪种方式可以根据实际需要确定。
进一步, 当基站在下行辅载波上向所述终端设备发送了有对应 PDCCH的 PDSCH时, 具体又包括如下两种场景:
场景二、 基站只在下行辅载波上向终端设备发送了 PDSCH。 基 站采用 PUCCH format 3方案, 在通过对应下行辅载波上 PDSCH传 输的 PDCCH中的任一 PDCCH中的 ACK/NACK资源指示域中的信 息配置给终端设备 PUCCH format 3信道资源上, 接收终端设备发送 的 ACK/NACK反馈信息。
在此种场景下, 如果基站在所确定的 PUCCH format 3信道资源 上, 没有接收到终端设备发送的 ACK/NACK反馈信息, 则基站相应 的处理过程如下:
基站判断终端设备丟失了所有下行辅载波上的数据传输,基站重 传下行辅载波上的所有数据。
场景三、基站在下行主载波上向终端设备发送了 PDSCH和 /或指 示下行 SPS资源释放的 PDCCH,并且发送了 DAI的取值大于 1的对 应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH, 并且, 在下行辅载波上向终端设备发送了 PDSCH。
基站采用 PUCCH format 3方案, 在通过 DAI的取值大于 1的对 应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH, 以及对应下行辅载波上 PDSCH传输的 PDCCH中的任意一个 PDCCH 中的 ACK/NACK 资源指示域中的信息配置给终端设备的 PUCCH format 3信道资源上, 接收终端设备发送的 ACK/NACK反馈信息。
在此种场景下, 如果基站在所确定的 PUCCH format 3信道资源 上, 没有接收到终端设备发送的 ACK/NACK反馈信息, 则基站相应 的处理过程包括以下两种方式:
( 1 )基站判断终端设备丟失了下行主载波上的所有 DAI的取值 大于 1的 PDCCH对应的下行主载波上的数据传输(包括 PDSCH传 输和指示下行 SPS资源释放的 PDCCH传输), 以及所有下行辅载波 上 PDSCH传输的 PDCCH, 基站重传下行主载波和下行辅载波上的 所有数据。
( 2 )基站判断终端设备丟失了所有 DAI的取值大于 1的 PDCCH 对应的下行主载波上的数据传输(包括 PDSCH传输和指示下行 SPS 资源释放的 PDCCH传输), 以及所有下行辅载波上 PDSCH传输的 PDCCH, 进一步, 基站在 PUCCH format la/lb 信道资源上检测 AC謹 ACK反馈信息。
如果基站检测到 ACK/NACK反馈信息, 基站根据 ACK/NACK 反馈信息确定下行主载波上的 DAI的取值等于 1的 PDCCH对应的数 据的重传和 /或下行主载波上 SPS PDSCH的重传,并重传下行主载波 上所有 DAI的取值大于 1的 PDCCH所对应的数据以及下行辅载波上 的所有数据;
如果基站没有检测到 ACK/NACK反馈信息, 基站确定终端设备 丟失了所有数据, 基站重传发送给终端设备的所有数据。
无论上述的那种场景, 在对应步骤 S402的方式一的情况下, 基 站均可以确定终端设备发送的 ACK/NACK反馈信息为根据终端设备 配置的下行载波以及每个配置的下行载波的传输模式确定的。
在实际的应用场景中,具体采用上述的哪种方式可以根据实际需 要确定, 这样的变化并不影响本发明的保护范围。
另一方面, 对应步骤 S402中的方式二, 即当基站通过 DAI的取 值大于 1的对应下行主载波上 PDSCH传输的 PDCCH和 /或 DAI的取 值大于 1的指示下行 SPS资源释放的 PDCCH中的 ACK/NACK资源 指示域, 与对应下行辅载波上 PDSCH 传输的 PDCCH 中的 ACK/NACK资源指示域指示不同的 PUCCH format 3信道资源给终端 设备时, 本步骤中具体通过哪类 PDCCH中的 ACK/NACK资源指示 域指示的 PUCCH format 3信道资源进行 ACK/NACK反馈信息的接 收,需要根据相应的信息发送情况来确定,根据不同的信息发送情况, 本步骤中的处理过程具体说明如下。
当基站只在下行主载波上向终端设备发送了下行数据,且下行数 据至少包括一个 DAI的取值大于 1的 PDCCH对应的下行主载波上的 PDSCH传输和 /或 DAI 的取值大于 1 的指示下行 SPS 资源释放的 PDCCH时, 基站采用 PUCCH format 3方案, 在通过 DAI的取值大 于 1的对应下行主载波上 PDSCH传输的 PDCCH和 /或 DAI的取值大 于 1的指示下行 SPS资源释放的 PDCCH中的 ACK/NACK资源指示 域携带的信息配置给终端设备的 PUCCH format 3信道资源上, 接收 终端设备发送的 ACK/NACK反馈信息;
当基站在下行辅载波上向终端设备发送了有对应 PDCCH 的 PDSCH时, 基站采用 PUCCH format 3方案, 在通过对应下行辅载波 上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域携带的信息 配置给终端设备的 PUCCH format 3信道资源上, 接收终端设备发送 的 ACK/NACK反馈信息。
具体可分为如下场景: 场景一、 当基站只在下行主载波上向终端 设备发送了下行数据, 且下行数据至少包括一个 DAI 的取值大于 1 的 PDCCH对应的下行主载波上的 PDSCH传输和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH时, 即基站只在下行主载波上 向终端设备发送了 PDSCH和 /或指示下行 SPS资源释放的 PDCCH, 且发送了 DAI的取值大于 1的对应下行主载波上 PDSCH传输和 /或 指示下行 SPS资源释放的 PDCCH。
基站采用 PUCCH format 3方案, 在通过 DAI的取值大于 1的对 应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH 的 ACK/NACK资源指示域中的信息配置给终端设备 PUCCH format 3 信道资源上, 接收终端设备发送的 ACK/NACK反馈信息。
在此种场景下, 基站确定终端设备发送的 ACK/NACK反馈信息 为根据下行主载波的传输模式确定的下行主载波的 ACK/NACK反馈 信息。
进一步的,对于此种场景,如果基站在所确定的 PUCCH format 3 信道资源上, 没有接收到终端设备发送的 ACK/NACK反馈信息, 则 基站相应的处理过程包括以下两种方式:
( 1 )基站判断终端设备丟失了所有 DAI的取值大于 1的 PDCCH 对应的下行主载波上的数据传输(包括 PDSCH传输和指示下行 SPS 资源释放的 PDCCH传输), 基站重传下行主载波上的所有数据。
( 2 )基站判断终端设备丟失了所有 DAI的取值大于 1的 PDCCH 对应的下行主载波上的数据传输(包括 PDSCH传输和指示下行 SPS 资源释放的 PDCCH传输), 进一步, 基站在 PUCCH format la/lb信 道资源上检测 ACK/NACK反馈信息。
如果基站检测到 ACK/NACK反馈信息, 基站根据 ACK/NACK 反馈信息确定下行主载波上的 DAI的取值等于 1的 PDCCH对应的数 据的重传和 /或下行主载波上 SPS PDSCH的重传,并重传下行主载波 上所有 DAI的取值大于 1的 PDCCH所对应的数据。
如果基站没有检测到 ACK/NACK反馈信息, 基站确定终端设备 丟失了所有数据, 基站重传发送给终端设备的所有数据。 场景二、 当基站在下行辅载波上向终端设备发送了有对应
PDCCH 的 PDSCH 时, 即基站在下行辅载波上向终端设备发送了 PDSCH。
基站采用 PUCCH format 3 方案, 在通过对应下行辅载波上 PDSCH传输的 PDCCH的 ACK/NACK资源指示域中的信息所对应的 PUCCH format 3信道资源上,接收终端设备发送的 ACK/NACK反馈 信息。
场景二中, 基站在下行辅载波上向终端设备发送了有对应 PDCCH的 PDSCH具体包括: 基站仅在下行辅载波上向终端设备发 送了有对应 PDCCH的 PDSCH, 或者, 基站在下行辅载波上向终端 设备发送了有对应 PDCCH的 PDSCH, 同时在下行主载波上向终端 设备发送的下行数据, 所述下行数据可以包括或者不包括 DAI的取 值大于 1的对应下行主载波上的 PDSCH的 PDCCH和 DAI的取值大 于 1的指示下行 SPS资源释放的 PDCCH, 即在上述发送情况中, 基 站总是采用 PUCCH format 3方案,在通过对应下行辅载波上 PDSCH 传输的 PDCCH的 ACK/NACK资源指示域中的信息所对应的 PUCCH format 3信道资源上, 接收终端设备发送的 ACK/NACK反馈信息。
在此种场景下, 基站确定终端设备发送的 ACK/NACK反馈信息 为根据终端设备配置的下行载波以及每个配置的下行载波的传输模 式确定的。
进一步的,对于此种场景,如果基站在所确定的 PUCCH format 3 信道资源上, 没有接收到终端设备发送的 ACK/NACK反馈信息, 则 基站相应的处理过程包括以下两种方式:
( 1 )基站判断终端设备丟失了所有下行辅载波的数据传输, 基 站重传下行辅载波上的所有数据。
( 2 )基站判断终端设备丟失了所有下行辅载波的数据传输, 基 站重传下行辅载波上的所有数据,如果基站在下行主载波上同时向终 端设备发送了 PDSCH和 /或指示下行 SPS资源释放的 PDCCH, 且发 送了 DAI的取值大于 1的对应下行主载波上 PDSCH传输和 /或指示 下行 SPS 资源释放的 PDCCH, 进一步, 基站可继续采用 PUCCH format 3方案,在通过 DAI的取值大于 1的对应下行主载波上 PDSCH 传输和 /或指示下行 SPS资源释放的 PDCCH的 ACK/NACK资源指示 域中的信息配置给终端设备的 PUCCH format 3信道资源上, 接收终 端设备发送的 ACK/NACK反馈信息。
如果基站在该 PUCCH format 3信道资源上接收到终端设备发送 的 ACK/NACK反馈信息, 基站确定该 ACK/NACK反馈信息为下行 主载波上数据的反馈信息, 并根据该 ACK/NACK反馈信息确定下行 主载波上数据的重传, 并重传下行辅载波上的所有数据。
如果基站在 PUCCH format 3信道资源上没有接收到终端设备发 送的 ACK/NACK反馈信息, 基站判断终端设备同样丟失了所有 DAI 的取值大于 1的 PDCCH对应的下行主载波上的数据传输(包括下行 主载波上 PDSCH传输和指示下行 SPS资源释放的 PDCCH传输), 基站重传下行主载波和下行辅载波上的所有数据,或基站可进一步在 PUCCH format la/lb信道资源上检测 ACK/NACK反馈信息。
进一步的, 对于基站在 PUCCH format la/lb 信道资源上检测 ACK/NACK反馈信息的情况, 相应的处理过程如下:
如果基站检测到 ACK/NACK反馈信息, 基站根据 ACK/NACK 反馈信息确定下行主载波上的 DAI的取值等于 1的 PDCCH对应的数 据的重传和 /或下行主载波上 SPS PDSCH的重传,并重传下行主载波 上所有 DAI的取值大于 1 的 PDCCH所对应的下行主载波上的数据 (包括 PDSCH传输和指示下行 SPS资源释放的 PDCCH传输 )和下 行辅载波上的所有数据;
如果基站没有检测到 ACK/NACK反馈信息, 基站确定终端设备 丟失了所有数据, 基站重传发送给终端设备的所有数据。
需要指出的是, 对于对应步骤 S402中的方式二中的各种情况, 为了保证在存在多个下行载波的情况下,终端设备可以根据相应类型 的 PDCCH的 ACK/NACK资源指示域中的信息来确定 PUCCH format 3信道资源, 不会因为同种类型的多个 PDCCH中的信息差异而产生 理解分歧, 所以, 需要进行以下设置。
A、基站向终端设备发送的多个 DAI的取值大于 1的对应下行主 载波上 PDSCH传输和 /或指示下行 SPS 资源释放的 PDCCH 中的 ACK/NACK资源指示域中所指示的 PUCCH format 3信道资源相同。
B、 基站向终端设备发送的多个对应下行辅载波上 PDSCH传输 的 PDCCH中的 ACK/NACK资源指示域中所指示的 PUCCH format 3 信道资源相同。
需要指出的是, 当 PUCCH format 3为单端口传输模式时, 上述 两种情况下 PDCCH中的资源指示域的指示值对应高层预先配置的多 个 PUCCH format 3信道资源中的一个资源; 当 PUCCH format3为多 端口 (2端口)传输模式, 即 SORTD模式时, DAI的取值大于 1的 对应下行主载波上 PDSCH 传输和 /或指示下行 SPS 资源释放的 PDCCH以及对应下行辅载波上 PDSCH传输的 PDCCH中的资源指示 域的指示值对应高层预先配置的多组 PUCCH format 3信道资源中的 一组资源, 每组资源中包括 2个 PUCCH format 3信道资源, 分别对 应不同的天线端口。
需要指出的是, 上述 PDCCH中的 ACK/NACK资源指示域可以 为 PDCCH中现有比特域的重用,例如重用 2比特 TPC指示域,或者 为 PDCCH中新增加的比特域。
与现有技术相比, 本发明实施例具有以下优点:
通过应用本发明实施例的技术方案, 可以实现通过 DAI的取值 大于 1的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放 的 PDCCH, 以及对应下行辅载波上 PDSCH传输的 PDCCH 中的 ACK/NACK资源指示域中的信息指示 PUCCH format 3信道资源,使 配置了多个下行载波的终端设备在只在下行主载波上接收到数据时, 同样可采用 PUCCH format 3方案传输 ACK/NACK反馈信息, 从而, 避免基站与终端设备对于 ACK/NACK反馈信息的传输方案的理解不 一致, 提高 ACK/NACK反馈信息传输的可靠性和效率。 下面, 结合具体的应用场景, 对本发明实施例所提出的技术方案 进行说明。
在 LTE-ATDD系统中,为了对上述的技术方案更加清晰的说明, 对于终端设备侧的处理过程, 将分别对应步骤 S302中的两种方式分 别说明。
方式一、 DAI的取值大于 1的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH和对应下行辅载波上 PDSCH传 输的 PDCCH中的 ACK/NACK资源指示域指示相同的 PUCCH format
3信道资源。
如图 5 所示, 为本发明实施例提出的一种具体应用场景下的 ACK/NACK反馈信息的传输方法的流程示意图, 该方法具体包括以 下步骤:
步骤 S501、 配置了多个下行载波的 UE在 N个下行载波、 M个 下行子帧上接收数据。 如表 1所示, N > 1 , 1 < M < 4。
步骤 S502、UE根据接收到的 DAI的取值大于 1的对应下行主载 波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH和 /或对应 下行辅载波上 PDSCH传输的 PDCCH 中的任——个 PDCCH 中的 ACK/NACK资源指示域中的信息确定 PUCCH format 3信道资源。
在实际的应用场景中, UE可能存在不同的接收场景, 相应的, UE根据实际接收到信息的情况确定的相应的处理过程如下。
当 UE只在下行主载波接收到 PDSCH和 /或指示下行 SPS资源释 放的 PDCCH, 且接收到 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH时,UE根据 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输和 /或指示下行 SPS 资源释放的 PDCCH中的任一 PDCCH中的 ACK/NACK资源指示域 中的信息确定 PUCCH format 3信道资源。
当 UE只在下行辅载波接收到 PDSCH时, UE根据对应下行辅载 波上 PDSCH传输的 PDCCH中任一 PDCCH中的 ACK/NACK资源指 示域中的信息确定 PUCCH format 3信道资源。
当 UE在下行主载波接收到 PDSCH和 /或指示下行 SPS资源释放 的 PDCCH和 DAI的取值大于 1的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH,且在下行辅载波接收到 PDSCH 时, UE根据 DAI的取值大于 1的对应下行主载波上 PDSCH传输和 / 或指示下行 SPS资源释放的 PDCCH和对应下行辅载波上 PDSCH传 输的 PDCCH中的任一 PDCCH中的 ACK/NACK资源指示域中的信 息确定 PUCCH format 3信道资源。
步骤 S503、 UE根据配置的下行载波以及每个配置的下行载波的 传输模式确定 ACK/NACK反馈信息。
步骤 S504、 UE在所确定的 PUCCH format 3信道资源上, 采用 PUCCH format 3方案传输 ACK/NACK反馈信息。
需要说明的是, UE在步骤 S502中根据接收到的 DAI的取值大 于 1的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH和 /或对应下行辅载波上 PDSCH传输的 PDCCH 中的任—— 个 PDCCH中的 ACK/NACK资源指示域中的信息所确定的 PUCCH format 3信道资源为同一个 /一组信道资源, 因此上述 3种接收情况可 以合并为一种 UE行为, 即当 UE只在下行主载波接收到 PDSCH和 / 或指示下行 SPS资源释放的 PDCCH,且接收到 DAI的取值大于 1的 对应下行主载波上 PDSCH 传输和 /或指示下行 SPS 资源释放的 PDCCH时, 或当 UE在下行辅载波接收到 PDSCH时, UE根据 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输和 /或指示下行 SPS 资源释放的 PDCCH和对应下行辅载波上 PDSCH传输的 PDCCH中 的任一 PDCCH中的 ACK/NACK资源指示域中的信息确定 PUCCH format 3信道资源, 然后执行步骤 S503和步骤 S504。
对于本情况的设定, 为了保证处理规则的一致性, 需要进行以下 设定。
当 UE接收到的 DAI的取值大于 1的对应下行主载波上 PDSCH 传输和 /或指示下行 SPS资源释放的 PDCCH的 ACK/NACK资源指示 域指示的 PUCCH format 3信道资源, 与 UE接收到的对应下行辅载 波上 PDSCH传输的 PDCCH 中的 ACK/NACK资源指示域指示的 PUCCH format 3信道资源不一致时, 相应的处理包括以下两种情况: ( 1 ) UE 可认为是调度错误, 在当前上行子帧中不传输 AC謹 ACK反馈信息。
( 2 ) UE 选择其中一个 PUCCH format 3 信道资源传输 AC謹 ACK反馈信息。
此外,当 UE接收到的多个 DAI的取值大于 1的对应下行主载波 上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH的 ACK/NACK 资源指示域指示的 PUCCH format 3信道资源不一致, 或者 UE接收 到的多个对应下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK 资源指示域指示的 PUCCH format 3信道资源不一致时, UE也可认为 是调度错误, 在当前上行子帧中不传输 ACK/NACK反馈信息, 或者 选择其中一个 PUCCH format 3信道资源传输 ACK/NACK反馈信息。
在实际的应用场景中, 可以采用上述的任何一种情况进行处理, 这样的变化并不影响本发明的保护范围。 方式二、 DAI的取值大于 1的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH和对应下行辅载波上 PDSCH传 输的 PDCCH中的 ACK/NACK资源指示域指示不同的 PUCCH format
3信道资源。
如图 6 所示, 为本发明实施例提出的一种具体应用场景下的 ACK/NACK反馈信息的传输方法的流程示意图, 该方法具体包括以 下步骤:
步骤 S601、 配置了多个下行载波的 UE在 N个下行载波、 M个 下行子帧上接收数据。 如表 1所示, N > 1 , 1 < M < 4。 步骤 S602、 UE根据实际接收到信息的情况确定相应的处理过程。 当 UE只在下行主载波接收到 PDSCH和 /或指示下行 SPS资源释 放的 PDCCH, 且接收到 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输和 /或指示下行 SPS 资源释放的 PDCCH时, 执行步骤 S603;
当 UE在下行辅载波接收到 PDSCH时, 执行步骤 S605。
需要指出的是, 上述的 UE在下行辅载波接收到数据的情况包括 以下两种:
( 1 ) UE只在下行辅载波接收到 PDSCH。
( 2 ) UE在下行主载波接收到 PDSCH和 /或指示下行 SPS资源 释放的 PDCCH和 DAI的取值大于 1的对应下行主载波上 PDSCH传 输和 /或指示下行 SPS 资源释放的 PDCCH, 且在下行辅载波接收到 PDSCH。
步骤 S603、 UE根据 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH的 ACK/NACK 资源指示域中的信息确定 PUCCH format 3信道资源。
步骤 S604、 UE根据下行主载波的传输模式, 只对下行主载波产 生 ACK/NACK反馈信息。
在具体的应用场景中, 上述过程中, UE不需对同一个下行子帧 中的多码字的 ACK/NACK反馈信息进行空间合并。
本步骤的处理过程完成后, 执行步骤 S607。
步骤 S605、 UE根据对应下行辅载波上 PDSCH传输的 PDCCH 的 ACK/NACK资源指示域中的信息确定 PUCCH format 3信道资源。
步骤 S606、 UE根据配置的下行载波以及每个配置的下行载波的 传输模式确定 ACK/NACK反馈信息。
本步骤的处理过程完成后, 执行步骤 S607。
步骤 S607、 UE在步骤 S603或步骤 S605 中所确定的 PUCCH format 3信道资源上,采用 PUCCH format 3方案传输 ACK/NACK反 馈信息。 为了方便说明,上述的步骤 S603中所确定的 PUCCH format 3信 道资源记为 PUCCH format 3 信道资源 1 , 步骤 S605 中所确定的 PUCCH format 3信道资源记为 PUCCH format 3信道资源 2。
则在实际的应用场景中, 由于本方式中已经设定两类 PDCCH的 ACK/NACK资源指示域的信息不通, 所以, PUCCH format 3信道资 源 2不同于 PUCCH format 3信道资源 1。
另一方面, 为了保证在存在多个下行载波的情况下, UE可以根 据相应类型的 PDCCH 的 ACK/NACK 资源指示域中的信息来确定 PUCCH format 3信道资源,不会因为同种类型的多个 PDCCH中的信 息差异而产生理解分歧, 所以, 需要进行如下设置。
多个 DAI的取值大于 1的对应下行主载波上 PDSCH传输和 /或 指示下行 SPS 资源释放的 PDCCH 的资源指示域指示的 PUCCH format 3 信道资源应相同; 多个对应下行辅载波上 PDSCH传输的 PDCCH中的资源指示域指示的 PUCCH format 3信道资源应相同。
否则, UE 可认为是调度错误, 在当前上行子帧中不传输 ACK/NACK反馈信息; 或者, UE选择其中一个 PUCCH format 3信 道资源传输 ACK/NACK反馈信息。
在实际的应用场景中, 无论对于上述的哪种情况下的方法, 所提 及的 ACK/NACK资源指示域为 PDCCH中现有比特域的重用, 例如 重用 2比特 TPC指示域, 或者为 PDCCH中新增加的比特域。
特别的, 对于上述的步骤 S501至步骤 S504, 或步骤 S601至步 骤 S607所描述的方法, 当处于载波重配置过程中时, 基站只能在下 行主载波存在至多一个数据传输(包括动态 PDSCH、 SPS PDSCH和 指示 SPS资源释放的 PDCCH在内), 以避免 UE根据配置的下行载 波确定 ACK/NACK反馈比特而引起的基站和 UE理解不一致问题; 此时 UE如果接收到数据, 则会在该数据对应的 PDCCH的最小 CCE 确定的 PUCCH format la/lb信道资源上或 SPS PDSCH对应的高层预 先配置的 PUCCH format la/lb信道资源上(通过激活该 SPS PDSCH 的 PDCCH中的 2比特 TPC指示)传输接收到的数据包的 1或 2比特 ACK/NACK信息; 基站只需在上述 PUCCH format la/lb资源上接收 数据即可, 不存在理解歧义。 另一方面, 对于基站侧的处理过程, 将分别对应步骤 S402中的 两种发送方式分别说明。
对应步骤 S402中的方式一、 DAI的取值大于 1的对应下行主载 波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH和对应下行 辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域指示 相同的 PUCCH format 3信道资源。
如图 7 所示, 为本发明实施例提出的一种具体应用场景下的 ACK/NACK反馈信息的传输方法的流程示意图, 该方法具体包括以 下步骤:
步骤 S701、 基站确定配置给配置了多个下行载波的 UE 的 PUCCH format 3信道资源。
当 PUCCH format 3 为单端口传输时, 基站确定一个 PUCCH format 3信道资源, 当 PUCCH format 3为多端口 (2端口)传输时, 基站确定一组 PUCCH format 3信道资源, 包括 2个 PUCCH format 3 信道资源, 分别对应不同端口。
步骤 S702、 基站将所配置的 PUCCH format 3 信道资源通过 PDCCH中的 ACK/NACK资源指示域发送给 UE。
其中, PDCCH 包括 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输和指示下行 SPS资源释放的 PDCCH (包括动态调动、 指示 SPS PDSCH激活和 SPS资源释放的 PDCCH ), 和与下行辅载波 上传输的 PDSCH相对应的 PDCCH中的任意一个或多个 PDCCH。
根据基站实际发送信息的情况, 基站通过 PDCCH指示 PUCCH format 3信道资源的处理过程如下。
当基站只在下行主载波上发送了 PDSCH和 /或指示下行 SPS资源 释放的 PDCCH, 且发送了 DAI的取值大于 1 的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH时, 基站将 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输和 /或指示下行 SPS 资源释放的 PDCCH中的 ACK/NACK资源指示域中的信息指示为步 骤 S701中确定的 PUCCH format 3信道资源, 并发送给 UE。
当基站只在下行辅载波上存在 PDSCH传输时, 基站将对应下行 辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域中的 信息指示为步骤 S701中确定的 PUCCH format 3信道资源,并发送给 UE;
当基站在下行主载波上发送了 PDSCH和 /或指示下行 SPS资源释 放的 PDCCH, 并发送了 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH, 且在下行辅载 波上存在 PDSCH传输时,基站将 DAI的取值大于 1的对应下行主载 波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH和对应下行 辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域中的 信息指示为步骤 S701中确定的 PUCCH format 3信道资源,并发送给 UE。
步骤 S703、基站确定 UE传输的 ACK/NACK反馈信息根据配置 的下行载波以及每个配置的下行载波的传输模式确定。
步骤 S704、 基站在确定的 PUCCH format 3 信道资源上采用 PUCCH format 3方案接收 ACK/NACK反馈信息。
在实际的应用场景中, 由于本情况中已经设定两种 PDCCH 的 ACK/NACK资源指示域的信息相同, 所以, 基站在上述任一步骤中 的 PDCCH中指示的 PUCCH format 3信道资源都应相同。
另一方面, 为了保证在存在多个 PDCCH情况下, UE可以根据 PDCCH 的 ACK/NACK 资源指示域中的信息来正确确定 PUCCH format 3信道资源,不会多个 PDCCH中的信息差异而产生理解分歧, 所以, 需要进行如下设置:
基站发送的多个 DAI的取值大于 1的对应下行主载波上 PDSCH 传输和 /或指示下行 SPS 资源释放的 PDCCH 的资源指示域指示的 PUCCH format 3信道资源应相同; 基站发送的多个对应下行辅载波 上 PDSCH传输的 PDCCH中的资源指示域指示的 PUCCH format 3信 道资源应相同。
在本步骤中, 如果基站在上述 PUCCH format 3信道资源上没有 接收到 ACK/NACK反馈信息, 则对应步骤 S702中的三种情况, 基 站进一步的接收处理过程如下:
( 1 ) 当基站只在下行主载波发送了 PDSCH和 /或指示下行 SPS 资源释放的 PDCCH时, 相应的处理方式包括:
方式一、 基站判断 UE丟失了所有 DAI的取值大于 1的 PDCCH 对应的下行主载波上的数据传输(包括 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH传输), 基站重传下行主载波上的所有数据。
方式二、 基站判断 UE丟失了所有 DAI的取值大于 1的 PDCCH 对应的下行主载波上的数据传输(包括 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH传输), 基站进一步在 PUCCH format la/lb 信道资源上检测 ACK/NACK反馈信息。
如果检测到 ACK/NACK反馈信息, 则根据该反馈信息确定下行 主载波上 DAI的取值等于 1的 PDCCH对应的数据的重传和 /或下行 主载波上 SPS PDSCH的重传,并重传下行主载波上所有 DAI的取值 大于 1的 PDCCH对应的下行主载波上的数据 (包括 PDSCH传输和 / 或指示下行 SPS资源释放的 PDCCH传输)。
如果未检测到 ACK/NACK, 则基站判断 UE丟失所有数据 (即 DTX ), 基站重传所有数据。
( 2 ) 当基站只在下行辅载波上存在 PDSCH传输时, 基站判断 UE丟失了所有对应下行辅载波上的 PDSCH传输, 基站重传下行辅 载波上的所有数据。
( 3 ) 当基站在下行主载波上发送了 PDSCH和 /或指示下行 SPS 资源释放的 PDCCH, 并发送了 DAI的取值大于 1的对应下行主载波 上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH, 且在下行辅 载波上存在 PDSCH传输时, 相应的处理方式包括:
方式一、 基站判断 UE丟失了所有对应下行辅载波上的 PDSCH 传输以及 DAI的取值大于 1的 PDCCH对应的下行主载波上的数据传 输(包括 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH ), 基 站重传所有数据。
方式二、 基站判断 UE丟失了所有对应下行辅载波上的 PDSCH 传输以及 DAI的取值大于 1的 PDCCH对应的下行主载波上的数据传 输(包括 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH ), 基 站进一步在 PUCCH format la/lb信道资源上检测 ACK/NACK反馈信 息。
如果检测到 ACK/NACK反馈信息, 则根据该反馈信息确定下行 主载波上 DAI的取值等于 1的 PDCCH对应的数据的重传和 /或下行 主载波上 SPS PDSCH的重传, 并重传所有其他数据。
如果未检测到 ACK/NACK, 则基站判断 UE丟失所有数据 (即 DTX ), 基站重传所有数据。
对应步骤 S402中的方式二、 DAI的取值大于 1的对应下行主载 波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH和对应下行 辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域指示 不同的 PUCCH format 3信道资源。
如图 8 所示, 为本发明实施例提出的一种具体应用场景下的 ACK/NACK反馈信息的传输方法的流程示意图, 该方法具体包括以 下步骤:
步骤 S801、 基站确定配置给配置了多个下行载波的 UE 的 PUCCH format 3信道资源。
当 PUCCH format 3 为单端口传输时, 基站确定 2个 PUCCH format 3信道资源, 当 PUCCH format 3为多端口 (2端口)传输时, 基站确定 2组 PUCCH format 3信道资源, 每组中包括 2个 PUCCH format 3信道资源, 分别对应不同端口。 简称上述 2个 /2组信道资源 为 PUCCH format 3信道资源 1和 PUCCH format 3信道资源 2。
步骤 S802、 基站将所配置的 PUCCH format 3 信道资源通过 PDCCH中的 ACK/NACK资源指示域发送给 UE。 其中, PDCCH包括 2类, 一类为 DAI的取值大于 1的对应下行 主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH (包括 动态调动、 指示 SPS PDSCH激活和 SPS资源释放的 PDCCH ), 另一 类为与下行辅载波上传输的 PDSCH相对应的 PDCCH。 上述两类 PDCCH中的 ACK/NACK资源指示域分别指示步骤 S801中确定的 2 个 /2组 PUCCH format 3信道资源。
步骤 S803、基站根据实际发送信息的情况确定相应的处理过程。 当基站只在下行主载波上存在数据传输, 且发送了 DAI的取值 大于 1的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放 的 PDCCH时, 执行步骤 S804和 S805;
当基站在下行辅载波上存在数据传输时,执行步骤 S806和 S807。 需要指出的是,上述的基站在下行辅载波上存在数据传输的情况 包括以下两种:
( 1 )基站只在下行辅载波上存在 PDSCH传输。
( 2 )基站在下行主载波上发送了 PDSCH和 /或指示下行 SPS资 源释放的 PDCCH, 并发送了 DAI的取值大于 1的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH, 且在下行辅载 波上存在 PDSCH传输。
步骤 S804、基站确定 UE传输的 ACK/NACK反馈信息为下行主 载的 ACK/NACK反馈信息。
在此种应用场景中, UE可以不对同一个下行子帧中的多码字的 ACK/NACK反馈信息进行空间合并。
步骤 S805、 基站在通过 DAI的取值大于 1的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH的 ACK/NACK 资源指示域中的信息指示的 PUCCH format 3 信道资源上采用 PUCCH format 3方案接收 ACK/NACK反馈信息。
步骤 S806、基站确定 UE传输的 ACK/NACK反馈信息为根据配 置的下行载波以及每个配置的下行载波的传输模式确定。
步骤 S807、基站在通过对应下行辅载波上 PDSCH传输的 PDCCH 的 ACK/NACK资源指示域中的信息指示的 PUCCH format 3信道资 源上采用 PUCCH format 3方案接收 ACK/NACK反馈信息。
为了方便说明,上述的步骤 S805中所确定的 PUCCH format 3信 道资源记为 PUCCH format 3 信道资源 1 , 步骤 S807 中所确定的 PUCCH format 3信道资源记为 PUCCH format 3信道资源 2。
在实际的应用场景中, 由于本方式中已经设定两种 PDCCH 的 ACK/NACK资源指示域的信息不同, 所以, PUCCH format 3信道资 源 2不同于 PUCCH format 3信道资源 1。
另一方面, 为了保证在存在多个下行载波的情况下, UE可以根 据相应类型的 PDCCH 的 ACK/NACK 资源指示域中的信息来确定 PUCCH format 3信道资源,不会因为同种类型的多个 PDCCH中的信 息差异而产生理解分歧, 所以, 需要进行如下设置。
基站发送的多个 DAI的取值大于 1的对应下行主载波上 PDSCH 传输和 /或指示下行 SPS 资源释放的 PDCCH 的资源指示域指示的 PUCCH format 3信道资源应相同; 基站发送的多个对应下行辅载波 上 PDSCH传输的 PDCCH中的资源指示域指示的 PUCCH format 3信 道资源应相同。
进一步的, 在步骤 S805中, 如果基站在上述 PUCCH format 3信 道资源 1上没有接收到 ACK/NACK反馈信息, 则基站进一步的处理 过程如下:
此时基站只在下行主载波发送了 PDSCH和 /或指示下行 SPS资源 释放的 PDCCH, 相应的处理方式包括:
方式一、基站判断 UE丟失了所有 DAI的取值大于 1的下行主载 波上的数据传输(包括 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH ), 基站重传下行主载波上的所有数据。
方式二、基站判断 UE丟失了所有 DAI的取值大于 1的下行主载 波上的数据传输(包括 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH ) , 基站进一步在 PUCCH format la/lb 信道资源上检测 AC謹 ACK反馈信息。 如果检测到 ACK/NACK反馈信息, 则根据该反馈信息确定下行 主载波上 DAI的取值等于 1的 PDCCH对应的数据的重传和 /或下行 主载波上 SPS PDSCH的重传,并重传下行主载波上所有 DAI的取值 大于 1的 PDCCH对应的数据 (包括 PDSCH传输和 /或指示下行 SPS 资源释放的 PDCCH )。
如果未检测到 ACK/NACK, 则基站判断 UE丟失所有数据 (即 DTX ), 基站重传所有数据。
进一步的, 在步骤 S807中, 如果基站在上述 PUCCH format 3信 道资源 2上没有接收到 ACK/NACK反馈信息, 则根据基站的实际发 送情况, 基站进一步的处理过程分为如下两种情况:
( 1 ) 当基站只在下行辅载波上存在 PDSCH传输时, 基站判断 UE丟失了所有下行辅载波上的 PDSCH传输, 基站重传所有数据。
( 2 ) 当基站在下行主载波上发送了 PDSCH和 /或指示下行 SPS 资源释放的 PDCCH, 并发送了 DAI的取值大于 1的对应下行主载波 上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH, 且在下行辅 载波上存在数据传输时, 相应的处理方式包括:
方式一、 基站判断 UE丟失了所有下行辅载波上的 PDSCH传输 以及对应 DAI的取值大于 1的 PDCCH的下行主载波上的数据传输 (包括 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH ), 基站 重传所有数据。
方式二、 基站判断 UE丟失了所有下行辅载波上的 PDSCH传输 以及对应 DAI的取值大于 1的 PDCCH的下行主载波上的数据传输 (包括 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH ), 基站 进一步在 PUCCH format 3信道资源 1上检测 ACK/NACK反馈信息。
如果检测到 ACK/NACK反馈信息, 则基站确定该 ACK/NACK 反馈信息为下行主载波上数据的反馈信息, 并根据该 ACK/NACK反 馈信息确定下行主载波上数据的重传 ,并重传所有下行辅载波上的数 据。
如果未检测到 ACK/NACK, 则基站进一步判断 UE丟失了所有 对应下行主载波上数据传输的 DAI的取值大于 1的 PDCCH对应的下 行主载波上的数据(包括 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH ), 基站重传所有数据。
方式三、 基站判断 UE丟失了所有下行辅载波上的 PDSCH传输 以及对应 DAI的取值大于 1的 PDCCH的下行主载波上的数据传输 (包括 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH ), 基站 进一步在 PUCCH format 3信道资源 1和 PUCCH format la/lb信道资 源上检测 ACK/NACK反馈信息。
此种方式中, 基站首先在 PUCCH format 3信道资源 1 上检测 AC謹 ACK反馈信息。
如果检测到 ACK/NACK反馈信息, 则基站根据 ACK/NACK反 馈信息确定下行主载波上数据的重传 ,并重传所有下行辅载波上的数 据。
如果未检测到 ACK/NACK, 则基站进一步在 PUCCH format la/lb信道资源上检测 ACK/NACK反馈信息。
如果检测到 ACK/NACK, 则根据该反馈信息确定下行主载波上 DAI的取值等于 1 的 PDCCH对应的数据的重传和 /或下行主载波上 SPS PDSCH 的重传, 并重传所有其他数据; 如果未检测到 ACK/NACK, 则基站判断 UE丟失所有数据(即 DTX ), 基站重传所 有数据。
特别的, 对于上述的步骤 S701至步骤 S704, 或步骤 S801至步 骤 S807所描述的方法, 当处于载波重配置过程中时, 基站只能在下 行主载波存在数据传输, 但可以存在多个下行子帧的数据传输, 以避 免 UE与基站对 ACK/NACK反馈比特的理解不一致问题; 此时, 如 果 UE只在下行主载波接收到对应 DAI=1的 PDCCH或 SPS PDSCH, 则会在该数据对应的 PDCCH的最小 CCE确定的 PUCCH format la/lb 信道资源上或 SPS PDSCH对应的高层预先配置的 PUCCH format la/lb信道资源上(通过激活该 SPS PDSCH的 PDCCH中的 2比特 TPC指示)传输接收到的数据包的 1或 2比特 ACK/NACK信息; 如 果 UE在下行主载波上接收到了对应 DAI的取值大于 1的对应下行主 载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH, 则会在 该 PDCCH中的资源指示域指示的 PUCCH format 3信道资源 1上发 送下行主载波的 ACK/NACK反馈信息; 基站只需根据自身在下行主 载波上的实际调度情况, 确定在上述 PUCCH format la/lb资源或是 PUCCH format 3信道资源上接收数据即可, 不存在理解歧义。
需要进一步指出的是,上述的各实施例中所说明的技术方案同样 可以适用于其他反馈信息, 如 CQI、 PML RI信息(如果这些反馈信 息也支持采用 PUCCH format 3方案进行传输)。
与现有技术相比, 本发明实施例具有以下优点:
通过应用本发明实施例的技术方案, 可以实现通过 DAI的取值 大于 1的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放 的 PDCCH, 以及对应下行辅载波上 PDSCH传输的 PDCCH 中的 ACK/NACK资源指示域中的信息指示 PUCCH format 3信道资源,使 配置了多个下行载波的终端设备在只在下行主载波上接收到数据时, 同样可采用 PUCCH format 3方案传输 ACK/NACK反馈信息, 从而, 避免基站与终端设备对于 ACK/NACK反馈信息的传输方案的理解不 一致, 提高 ACK/NACK反馈信息传输的可靠性和效率。 为了实现本发明实施例的技术方案,本发明实施例还提供了一种 终端设备, 其结构示意图如图 9所示, 具体包括:
接收模块 91 , 用于在配置的多个下行载波中的 N个下行载波中 的 M个下行子帧接收数据, 其中, N > 1 , 1 < M < 4, M个下行子帧 中的数据所对应的 ACK/NACK反馈信息在同一个上行子帧中传输; 确定模块 92, 用于根据接收模块 91 所接收到的 PDCCH 中的 ACK/NACK资源指示域携带的信息确定 PUCCH format 3信道资源, 其中, PDCCH包括 DAI的取值大于 1的对应下行主载波上 PDSCH 传输的 PDCCH和 DAI的取值大于 1 的指示下行 SPS 资源释放的 PDCCH, 以及对应下行辅载波上 PDSCH传输的 PDCCH; 发送模块 93 , 用于在确定模块 92所确定的 PUCCH format 3信 道资源上采用 PUCCH format 3方案传输 ACK/NACK反馈信息。
其中, 确定模块 92, 具体用于:
当所述接收模块 91只在下行主载波上接收到下行数据, 且所述 下行数据至少包含一个 DAI的取值大于 1的 PDCCH对应的下行主载 波上的 PDSCH传输和 /或 DAI的取值大于 1的指示下行 SPS资源释 放的 PDCCH 时, 根据所述 DAI 的取值大于 1 的 PDCCH 中的 ACK/NACK资源指示域携带的信息确定 PUCCH format 3信道资源; 当所述接收模块 91 在下行辅载波上接收到有对应 PDCCH 的 PDSCH时,根据所述对应下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域携带的信息确定 PUCCH format 3信道资源; 如果所述终端设备同时在下行主载波上接收到下行数据,且所述下行 数据至少包含一个 DAI的取值大于 1的 PDCCH对应的下行主载波上 的 PDSCH传输和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH, 则根据所述 DAI的取值大于 1的 PDCCH、 以及对应下行 辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域携带 的信息确定 PUCCH format 3信道资源;
其中,所述 DAI的取值大于 1的 PDCCH包括 DAI的取值大于 1 的对应下行主载波上 PDSCH传输的 PDCCH和 DAI的取值大于 1的 指示下行 SPS资源释放的 PDCCH,所述 DAI的取值大于 1的 PDCCH 中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道资源, 与所述对应下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK 资源指示域所指示的 PUCCH format 3信道资源相同;
即, 具体的, 当接收模块 91只在下行主载波上接收到 PDSCH和 /或 指示下行 SPS资源释放的 PDCCH,且接收到 DAI的取值大于 1的对 应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH 时,或者当接收模块 91在下行辅载波上接收到 PDSCH时,根据 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输和 /或指示下行 SPS 资源释放的 PDCCH,和 /或对应下行辅载波上 PDSCH传输的 PDCCH 中任一 PDCCH中的 ACK/NACK资源指示域中的信息确定 PUCCH format 3信道资源; 其中, DAI的取值大于 1 的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH中的 ACK/NACK 资源指示域所指示的 PUCCH format 3信道资源, 与对应下行辅载波 上 PDSCH传输的 PDCCH 中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道资源相同。
进一步的, 确定模块 92, 还用于:
当所述 DAI取值大于 1的 PDCCH(包括 DAI的取值大于 1的对 应下行主载波上 PDSCH传输的 PDCCH和 /DAI的取值大于 1的指示 下行 SPS资源释放的 PDCCH ) 中的 ACK/NACK资源指示域所指示 的 PUCCH format 3信道资源, 与所述对应下行辅载波上 PDSCH传 输的 PDCCH中的 ACK/NACK资源指示域所指示的 PUCCH format 3 信道资源相同时,根据配置的下行载波以及每个配置的下行载波的传 输模式确定 ACK/NACK反馈信息。
另一方面, 确定模块 92, 具体用于:
当所述接收模块 91只在下行主载波上接收到下行数据, 且所述 下行数据至少包括一个 DAI的取值大于 1的 PDCCH对应的下行主载 波上的 PDSCH传输和 /或 DAI的取值大于 1的指示下行 SPS资源释 放的 PDCCH 时, 根据所述 DAI 的取值大于 1 的 PDCCH 中的 ACK/NACK资源指示域携带的信息确定 PUCCH format 3信道资源; 当所述接收模块 91 在下行辅载波上接收到有对应 PDCCH 的 PDSCH 时, 根据所述下行辅载波上 PDSCH传输的 PDCCH 中的 ACK/NACK资源指示域携带的信息确定 PUCCH format 3信道资源; 其中, 所述 DAI取值大于 1的 PDCCH包括所述 DAI的取值大 于 1的对应下行主载波上 PDSCH传输的 PDCCH、 所述 DAI的取值 大于 1的指示下行 SPS资源释放的 PDCCH,所述 DAI取值大于 1的 PDCCH中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道 资源, 与所述对应下行辅载波上 PDSCH 传输的 PDCCH 中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道资源不同; 即, 具体的, 当接收模块 91只在下行主载波上接收到 PDSCH和 /或 指示下行 SPS资源释放的 PDCCH,且接收到 DAI的取值大于 1的对 应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH 时, 根据 DAI的取值大于 1的对应下行主载波上 PDSCH传输和 /或 指示下行 SPS资源释放的 PDCCH中的 ACK/NACK资源指示域中的 信息确定 PUCCH format 3信道资源; 当接收模块 91在下行辅载波上 接收到 PDSCH时, 根据下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域中的信息确定 PUCCH format 3信道资源;其 中, DAI的取值大于 1的对应下行主载波上 PDSCH传输和 /或指示下 行 SPS资源释放的 PDCCH 中的 ACK/NACK资源指示域所指示的 PUCCH format 3 信道资源, 与对应下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道 资源不同。
进一步的, 确定模块 92, 还用于:
当所述 DAI取值大于 1的 PDCCH(包括 DAI的取值大于 1的对 应下行主载波上 PDSCH传输的 PDCCH和 DAI的取值大于 1的指示 下行 SPS资源释放的 PDCCH ) 中的 ACK/NACK资源指示域所指示 的 PUCCH format 3信道资源, 与所述对应下行辅载波上 PDSCH传 输的 PDCCH中的 ACK/NACK资源指示域所指示的 PUCCH format 3 信道资源不同时:
当所述接收模块 91只在下行主载波上接收到下行数据, 且所述 下行数据至少包含一个 DAI的取值大于 1的 PDCCH对应的下行主载 波上的 PDSCH传输和 /或 DAI的取值大于 1的指示下行 SPS资源释 放的 PDCCH时, 根据下行主载波的传输模式, 只对所述下行主载波 确定 ACK/NACK反馈信息;
即, 具体的, 当接收模块 91 只在下行主载波上接收到 PDSCH 和 /或指示下行 SPS资源释放的 PDCCH,且接收到 DAI的取值大于 1 的对应下行主载波上 PDSCH传输和 /或指示下行 SPS 资源释放的 PDCCH 时, 根据下行主载波的传输模式, 只对下行主载波确定 AC謹 ACK反馈信息;
当所述接收模块 91 在下行辅载波上接收到有对应 PDCCH 的 PDSCH 时, 根据配置的下行载波以及每个配置的下行载波的传输模 式确定 ACK/NACK反馈信息;
即, 具体的, 当接收模块 91在下行辅载波上接收到 PDSCH时, 根据配置的下行载波以及每个配置的下行载波的传输模式确定 AC謹 ACK反馈信息。
需要指出的是, 当所述接收模块 91只在下行主载波上接收到下 行数据, 且所述下行数据至少包含一个 DAI的取值大于 1的 PDCCH 对应的下行主载波上的 PDSCH传输和 /或 DAI的取值大于 1的指示 下行 SPS资源释放的 PDCCH时, 即当接收模块 91只在下行主载波 上接收到 PDSCH和 /或指示下行 SPS资源释放的 PDCCH, 且接收到 DAI的取值大于 1 的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH时, 确定模块 92, 还用于:
确定对下行主载波上同一个下行子帧中的多码字的 ACK/NACK 反馈信息不进行空间合并。 另一方面, 本发明实施例还提供了一种基站, 其结构示意图如图 10所示, 具体包括:
配置模块 101 , 用于确定配置给配置了多个下行载波的终端设备 的 PUCCH format 3信道资源;
发送模块 102, 用于将配置模块 101所确定的 PUCCH format 3 信道资源携带在 PDCCH的 ACK/NACK资源指示域中发送给终端设 备,其中, PDCCH包括 DAI的取值大于 1的对应下行主载波上 PDSCH 传输的 PDCCH和 DAI的取值大于 1 的指示下行 SPS 资源释放的 PDCCH, 以及对应下行辅载波上 PDSCH传输的 PDCCH;
接收模块 103 ,用于根据配置模块 101所确定的 PUCCH format 3 信道资源采用 PUCCH format 3方案接收终端设备发送的 ACK/NACK 反馈信息。 其中, 发送模块 102, 具体用于:
通过 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输的 PDCCH和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH 的 ACK/NACK 资源指示域, 与对应下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域指示相同的 PUCCH format 3信 道资源给终端设备。
进一步的, 当发送模块 102通过 DAI的取值大于 1的对应下行 主载波上 PDSCH传输的 PDCCH和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH的 ACK/NACK资源指示域, 与对应下行辅 载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域指示相 同的 PUCCH format 3信道资源给终端设备时, 接收模块 103 , 具体 用于:
当所述发送模块 102 只在下行主载波上向所述终端设备发送了 下行数据, 且所述下行数据至少包括一个 DAI 的取值大于 1 的 PDCCH对应的下行主载波上的 PDSCH传输和 /或 DAI的取值大于 1 的指示下行 SPS资源释放的 PDCCH时,或者当所述发送模块在下行 辅载波上向所述终端设备发送了有对应 PDCCH的 PDSCH时, 所述 接收模块 103采用 PUCCH format 3 方案, 在通过所述发送的具有 ACK/NACK资源指示域的 PDCCH配置给所述终端设备的 PUCCH format 3信道资源上, 接收所述终端设备发送的 ACK/NACK反馈信 息, 其中, 所述发送的具有 ACK/NACK资源指示域的 PDCCH包括 DAI的取值大于 1的对应下行主载波上 PDSCH传输的 PDCCH和 DAI 的取值大于 1的指示下行 SPS资源释放的 PDCCH, 以及对应下行辅 载波上 PDSCH传输的 PDCCH;
即, 具体的, 当发送模块 102通过 DAI的取值大于 1的对应下 行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH的 ACK/NACK 资源指示域, 与对应下行辅载波上 PDSCH 传输的 PDCCH中的 ACK/NACK资源指示域指示相同的 PUCCH format 3信 道资源给终端设备时, 接收模块 103 , 具体用于: 当发送模块 102只在下行主载波上向终端设备发送了 PDSCH和 /或指示下行 SPS资源释放的 PDCCH, 且发送了 DAI的取值大于 1 的对应下行主载波上 PDSCH传输和 /或指示下行 SPS 资源释放的 PDCCH时, 或者当发送模块 102在下行辅载波上向终端设备发送了 PDSCH时, 接收模块 103采用 PUCCH format 3方案, 在通过 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输和 /或指示下行 SPS 资源释放的 PDCCH,和 /或对应下行辅载波上 PDSCH传输的 PDCCH 中的任一 PDCCH中的 ACK/NACK资源指示域中的信息配置给终端 设备的 PUCCH format 3 信道资源上, 接收终端设备发送的 AC謹 ACK反馈信息。
相应的, 接收模块 103还用于:
当所述基站通过所述 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输的 PDCCH和 /或 DAI的取值大于 1的指示下行 SPS资源 释放的 PDCCH中的 ACK/NACK资源指示域, 与对应下行辅载波上 PDSCH传输的 PDCCH 中的 ACK/NACK 资源指示域指示相同的 PUCCH format 3信道资源给所述终端设备时:
确定终端设备发送的 ACK/NACK反馈信息为根据终端设备配置 的下行载波以及每个配置的下行载波的传输模式确定的。
另一方面, 发送模块 102, 具体用于:
通过 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输的 PDCCH和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH 的 ACK/NACK 资源指示域, 与对应下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域指示不同的 PUCCH format 3信 道资源给终端设备。
进一步的, 当发送模块 102通过 DAI的取值大于 1的对应下行 主载波上 PDSCH传输的 PDCCH和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH的 ACK/NACK资源指示域, 与对应下行辅 载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域指示不 同的 PUCCH format 3信道资源给终端设备时, 接收模块 103 , 具体 用于:
当所述发送模块 102 只在下行主载波上向所述终端设备发送了 下行数据, 且所述下行数据至少包括一个 DAI 的取值大于 1 的 PDCCH对应的下行主载波上的 PDSCH传输和 /或 DAI的取值大于 1 的指示下行 SPS 资源释放的 PDCCH 时, 所述接收模块 103 采用 PUCCH format 3方案, 在所述通过 DAI的取值大于 1的对应下行主 载波上 PDSCH传输的 PDCCH和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH中的 ACK/NACK资源指示域携带的信息配 置给所述终端设备的 PUCCH format 3信道资源上, 接收所述终端设 备发送的 ACK/NACK反馈信息;
当所述基站在下行辅载波上向所述终端设备发送了有对应 PDCCH的 PDSCH时, 所述基站采用 PUCCH format 3方案, 所述接 收模块 103在所述通过对应下行辅载波上 PDSCH传输的 PDCCH中 的 ACK/NACK 资源指示域携带的信息配置给所述终端设备的 PUCCH format 3信道资源上, 接收所述终端设备发送的 ACK/NACK 反馈信息;
即, 具体的, 当发送模块 102通过 DAI的取值大于 1的对应下 行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH的 ACK/NACK 资源指示域, 与对应下行辅载波上 PDSCH 传输的 PDCCH中的 ACK/NACK资源指示域指示不同的 PUCCH format 3信 道资源给终端设备时, 接收模块 103 , 具体用于:
当发送模块 102只在下行主载波上向终端设备发送了 PDSCH和 /或指示下行 SPS资源释放的 PDCCH, 且发送了 DAI的取值大于 1 的对应下行主载波上 PDSCH传输和 /或指示下行 SPS 资源释放的 PDCCH时, 接收模块 103采用 PUCCH format 3方案, 在通过 DAI 的取值大于 1 的对应下行主载波上进行 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH的 ACK/NACK资源指示域中的信息配置给 终端设备的 PUCCH format 3 信道资源上, 接收终端设备发送的 ACK/NACK反馈信息; 或, 当发送模块 102在下行辅载波上向终端设备发送了 PDSCH时, 接收模块 103采用 PUCCH format 3方案, 在通过对应下行辅载波上 进行 PDSCH传输的 PDCCH的 ACK/NACK资源指示域中的信息配 置给终端设备的 PUCCH format 3信道资源上, 接收终端设备发送的 AC謹 ACK反馈信息。
相应的, 接收模块 103还用于:
当所述基站通过所述 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH的 ACK/NACK 资源指示域, 与对应下行辅载波上 PDSCH 传输的 PDCCH 中的 ACK/NACK资源指示域指示不同的 PUCCH format 3信道资源给所述 终端设备时:
当所述发送模块 102 只在下行主载波上向所述终端设备发送了 下行数据, 且所述下行数据至少包括一个 DAI 的取值大于 1 的 PDCCH对应的下行主载波上的 PDSCH传输和 /或 DAI的取值大于 1 的指示下行 SPS资源释放的 PDCCH时,所述接收模块 103确定所述 终端设备发送的所述 ACK/NACK反馈信息为根据下行主载波的传输 模式确定的下行主载波的 ACK/NACK反馈信息;
当所述发送模块 102在下行辅载波上向所述终端设备发送了有 对应 PDCCH的 PDSCH时, 所述接收模块 103确定所述终端设备发 送的所述 ACK/NACK反馈信息为根据所述 UE配置的下行载波以及 每个配置的下行载波的传输模式确定的;
即, 具体的, 当发送模块 102只在下行主载波上向终端设备发送 了 PDSCH和 /或指示下行 SPS资源释放的 PDCCH, 且发送了 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输和 /或指示下行 SPS 资源释放的 PDCCH 时, 接收模块 103 确定终端设备发送的 ACK/NACK反馈信息为根据下行主载波的传输模式确定的下行主载 波的 ACK/NACK反馈信息; 或,
当发送模块 102在下行辅载波上向终端设备发送了 PDSCH时, 接收模块 103确定终端设备发送的 ACK/NACK反馈信息为根据 UE 配置的下行载波以及每个配置的下行载波的传输模式确定的。
与现有技术相比, 本发明实施例具有以下优点:
通过应用本发明实施例的技术方案, 可以实现通过 DAI的取值 大于 1的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放 的 PDCCH, 以及对应下行辅载波上 PDSCH传输的 PDCCH 中的 ACK/NACK资源指示域中的信息指示 PUCCH format 3信道资源,使 配置了多个下行载波的终端设备在只在下行主载波上接收到数据时, 同样可采用 PUCCH format 3方案传输 ACK/NACK反馈信息, 从而, 避免基站与终端设备对于 ACK/NACK反馈信息的传输方案的理解不 一致, 提高 ACK/NACK反馈信息传输的可靠性和效率。 通过以上的实施方式的描述,本领域的技术人员可以清楚地了解 到本发明实施例可以通过硬件实现,也可以借助软件加必要的通用硬 件平台的方式来实现。基于这样的理解, 本发明实施例的技术方案可 以以软件产品的形式体现出来,该软件产品可以存储在一个非易失性 存储介质 (可以是 CD-ROM, U盘, 移动硬盘等) 中, 包括若干指 令用以使得一台计算机设备(可以是个人计算机, 服务器, 或网络设 备等)执行本发明实施例各个实施场景所述的方法。
本领域技术人员可以理解附图只是一个优选实施场景的示意图, 附图中的模块或流程并不一定是实施本发明实施例所必须的。
本领域技术人员可以理解实施场景中的装置中的模块可以按照 实施场景描述进行分布于实施场景的装置中,也可以进行相应变化位 于不同于本实施场景的一个或多个装置中。上述实施场景的模块可以 合并为一个模块, 也可以进一步拆分成多个子模块。
上述本发明实施例序号仅仅为了描述, 不代表实施场景的优劣。 明实施例并非局限于此,任何本领域的技术人员能思之的变化都应落 入本发明实施例的业务限制范围。

Claims

权利要求
1、 一种 ACK/NACK反馈信息的传输方法, 其特征在于, 包括: 配置了多个下行载波的终端设备在 N个下行载波中的 M个下行 子帧接收数据, 其中, N > 1 , 1 < M < 4, 所述 M个下行子帧中的数 据所对应的 ACK/NACK反馈信息在同一个上行子帧中传输;
所述终端设备根据接收到的物理下行控制信道 PDCCH 中的 ACK/NACK 资源指示域携带的信息确定物理上行控制信道 PUCCH 格式 format 3信道资源, 其中, 所述 PDCCH包括下行分配序号 DAI 的取值大于 1的对应下行主载波上物理下行共享信道 PDSCH传输的 PDCCH和 DAI的取值大于 1的指示下行半持续调度 SPS资源释放的 PDCCH, 以及对应下行辅载波上 PDSCH传输的 PDCCH;
所述终端设备在所述确定的 PUCCH format 3 信道资源上采用 PUCCH format 3方案传输 ACK/NACK反馈信息。
2、 如权利要求 1所述的方法, 其特征在于, 所述终端设备根据 接收到的 PDCCH 中的 ACK/NACK 资源指示域携带的信息确定 PUCCH format 3信道资源, 具体包括:
当所述终端设备只在下行主载波上接收到下行数据,且所述下行 数据至少包含一个 DAI的取值大于 1的 PDCCH对应的下行主载波上 的 PDSCH传输和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH时, 所述终端设备根据所述 DAI的取值大于 1的 PDCCH中 的 ACK/NACK资源指示域携带的信息确定 PUCCH format 3信道资 源;
当所述终端设备在下行辅载波上接收到有对应 PDCCH 的 PDSCH时, 所述终端设备根据所述对应下行辅载波上 PDSCH传输 的 PDCCH 中的 ACK/NACK 资源指示域携带的信息确定 PUCCH format 3信道资源; 如果所述终端设备同时在下行主载波上接收到下 行数据, 且所述下行数据至少包含一个 DAI的取值大于 1的 PDCCH 对应的下行主载波上的 PDSCH传输和 /或 DAI的取值大于 1的指示 下行 SPS资源释放的 PDCCH,则所述终端设备根据所述 DAI的取值 大于 1的 PDCCH、以及对应下行辅载波上 PDSCH传输的 PDCCH中 的 ACK/NACK资源指示域携带的信息确定 PUCCH format 3信道资 源;
其中,所述 DAI的取值大于 1的 PDCCH包括 DAI的取值大于 1 的对应下行主载波上 PDSCH传输的 PDCCH和 DAI的取值大于 1的 指示下行 SPS资源释放的 PDCCH,所述 DAI的取值大于 1的 PDCCH 中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道资源, 与所述对应下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK 资源指示域所指示的 PUCCH format 3信道资源相同; 或者,
当所述终端设备只在下行主载波上接收到下行数据,且所述下行 数据至少包括一个 DAI的取值大于 1的 PDCCH对应的下行主载波上 的 PDSCH传输和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH时, 所述终端设备根据所述 DAI的取值大于 1的 PDCCH中 的 ACK/NACK资源指示域中的信息确定 PUCCH format 3信道资源; 当所述终端设备在下行辅载波上接收到有对应 PDCCH的 PDSCH时, 所述终端设备根据所述对应下行辅载波上 PDSCH传输的 PDCCH中 的 ACK/NACK资源指示域携带的信息确定 PUCCH format 3信道资 源; 其中, 所述 DAI取值大于 1的 PDCCH包括所述 DAI的取值大 于 1的对应下行主载波上 PDSCH传输的 PDCCH、 所述 DAI的取值 大于 1的指示下行 SPS资源释放的 PDCCH,所述 DAI取值大于 1的 PDCCH中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道 资源, 与所述对应下行辅载波上 PDSCH 传输的 PDCCH 中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道资源不同。
3、 如权利要求 2所述的方法, 其特征在于, 所述方法还包括: 当所述 DAI取值大于 1的 PDCCH中的 ACK/NACK资源指示域 所指示的 PUCCH format 3 信道资源, 与所述对应下行辅载波上 PDSCH 传输的 PDCCH 中的 ACK/NACK 资源指示域所指示的 PUCCH format 3信道资源相同时: 所述终端设备根据配置的下行载波以及每个配置的下行载波的 传输模式确定 ACK/NACK反馈信息;
当所述 DAI取值大于 1的 PDCCH中的 ACK/NACK资源指示域 所指示的 PUCCH format 3 信道资源, 与所述对应下行辅载波上 PDSCH 传输的 PDCCH 中的 ACK/NACK 资源指示域所指示的 PUCCH format 3信道资源不同时:
当所述终端设备只在下行主载波上接收到下行数据,且所述下行 数据至少包含一个 DAI的取值大于 1的 PDCCH对应的下行主载波上 的 PDSCH传输和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH时, 所述终端设备根据下行主载波的传输模式, 只对所述下 行主载波确定 ACK/NACK反馈信息;
当所述终端设备在下行辅载波上接收到有对应 PDCCH 的 PDSCH 时, 所述终端设备根据配置的下行载波以及每个配置的下行 载波的传输模式确定 ACK/NACK反馈信息。
4、 如权利要求 3所述的方法, 其特征在于, 当所述终端设备只 在下行主载波上接收到下行数据,且所述下行数据至少包含一个 DAI 的取值大于 1 的 PDCCH对应的下行主载波上的 PDSCH传输和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH时,所述终端 设备根据下行主载波的传输模式, 只对所述下行主载波确定 ACK/NACK反馈信息, 还包括:
所述终端设备对下行主载波上同一个下行子帧中的多码字的 ACK/NACK反馈信息不进行空间合并。
5、 如权利要求 2至 4中任意一项所述的方法, 其特征在于, 所 述方法还包括:
所述终端设备所接收到的多个 DAI的取值大于 1 的对应下行主 载波上 PDSCH传输的 PDCCH以及 DAI的取值大于 1的指示下行 SPS 资源释放的 PDCCH中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道资源相同;
所述终端设备所接收到的多个对应下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道 资源相同。
6、 如权利要求 1至 4中任意一项所述的方法, 其特征在于, 所 述 PDCCH中的 ACK/NACK资源指示域, 具体为:
所述 PDCCH中原有比特域的重用; 或者,
所述 PDCCH中新增加的比特域。
7、 如权利要求 6所述的方法, 其特征在于, 所述 PDCCH中的 ACK/NACK资源指示域, 具体为:
所述 PDCCH中发射功率控制 TPC比特域的重用。
8、 一种终端设备, 其特征在于, 包括:
接收模块, 用于在配置的多个下行载波中的 N个下行载波中的 M个下行子帧接收数据, 其中, N > 1 , 1 < M < 4, 所述 M个下行子 帧中的数据所对应的 ACK/NACK反馈信息在同一个上行子帧中传 输;
确定模块, 用于根据所述接收模块所接收到的 PDCCH 中的 ACK/NACK资源指示域携带的信息确定 PUCCH format 3信道资源, 其中, 所述 PDCCH 包括 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输的 PDCCH和 DAI的取值大于 1的指示下行 SPS资源释 放的 PDCCH, 以及对应下行辅载波上 PDSCH传输的 PDCCH;
发送模块, 用于在所述确定模块所确定的 PUCCH format 3信道 资源上采用 PUCCH format 3方案传输 ACK/NACK反馈信息。
9、 如权利要求 8所述的终端设备, 其特征在于, 所述确定模块, 具体用于:
当所述接收模块只在下行主载波上接收到下行数据,且所述下行 数据至少包含一个 DAI的取值大于 1的 PDCCH对应的下行主载波上 的 PDSCH传输和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH时,根据所述 DAI的取值大于 1的 PDCCH中的 ACK/NACK 资源指示域携带的信息确定 PUCCH format 3信道资源; 当所述接收模块在下行辅载波上接收到有对应 PDCCH 的 PDSCH时,根据所述对应下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域携带的信息确定 PUCCH format 3信道资源; 如果所述接收模块同时在下行主载波上接收到下行数据,且所述下行 数据至少包含一个 DAI的取值大于 1的 PDCCH对应的下行主载波上 的 PDSCH传输和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH, 则根据所述 DAI的取值大于 1的 PDCCH、 以及对应下行 辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域携带 的信息确定 PUCCH format 3信道资源;
其中,所述 DAI的取值大于 1的 PDCCH包括 DAI的取值大于 1 的对应下行主载波上 PDSCH传输的 PDCCH和 DAI的取值大于 1的 指示下行 SPS资源释放的 PDCCH,所述 DAI的取值大于 1的 PDCCH 中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道资源, 与所述对应下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK 资源指示域所指示的 PUCCH format 3信道资源相同; 或者,
当所述接收模块只在下行主载波上接收到下行数据,且所述下行 数据至少包括一个 DAI的取值大于 1的 PDCCH对应的下行主载波上 的 PDSCH传输和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH时,根据所述 DAI的取值大于 1的 PDCCH中的 ACK/NACK 资源指示域携带的信息确定 PUCCH format 3信道资源;
当所述接收模块在下行辅载波上接收到有对应 PDCCH 的 PDSCH 时, 根据所述下行辅载波上 PDSCH传输的 PDCCH 中的 ACK/NACK资源指示域携带的信息确定 PUCCH format 3信道资源; 其中, 所述 DAI取值大于 1的 PDCCH包括所述 DAI的取值大 于 1的对应下行主载波上 PDSCH传输的 PDCCH、 所述 DAI的取值 大于 1的指示下行 SPS资源释放的 PDCCH,所述 DAI取值大于 1的 PDCCH中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道 资源, 与所述对应下行辅载波上 PDSCH 传输的 PDCCH 中的 ACK/NACK资源指示域所指示的 PUCCH format 3信道资源不同。
10、如权利要求 9所述的终端设备,其特征在于,所述确定模块, 还用于:
当所述 DAI取值大于 1的 PDCCH中的 ACK/NACK资源指示域 所指示的 PUCCH format 3 信道资源, 与所述对应下行辅载波上 PDSCH 传输的 PDCCH 中的 ACK/NACK 资源指示域所指示的 PUCCH format 3信道资源相同时, 根据配置的下行载波以及每个配 置的下行载波的传输模式确定 ACK/NACK反馈信息;
当所述 DAI取值大于 1的 PDCCH中的 ACK/NACK资源指示域 所指示的 PUCCH format 3 信道资源, 与所述对应下行辅载波上 PDSCH 传输的 PDCCH 中的 ACK/NACK 资源指示域所指示的 PUCCH format 3信道资源不同时:
当所述接收模块只在下行主载波上接收到下行数据,且所述下行 数据至少包含一个 DAI的取值大于 1的 PDCCH对应的下行主载波上 的 PDSCH传输和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH时, 根据下行主载波的传输模式, 只对所述下行主载波确定 AC謹 ACK反馈信息;
当所述接收模块在下行辅载波上接收到有对应 PDCCH 的 PDSCH 时, 根据配置的下行载波以及每个配置的下行载波的传输模 式确定 ACK/NACK反馈信息。
11、 如权利要求 10所述的终端设备, 其特征在于, 当所述接收 模块只在下行主载波上接收到下行数据,且所述下行数据至少包含一 个 DAI的取值大于 1的 PDCCH对应的下行主载波上的 PDSCH传输 和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH时, 所 述确定模块, 还用于:
确定对下行主载波上同一个下行子帧中的多码字的 ACK/NACK 反馈信息不进行空间合并。
12、一种 ACK/NACK反馈信息的传输方法, 其特征在于, 包括: 基站确定配置给配置了多个下行载波的终端设备的 PUCCH format 3信道资源;
所述基站将所述确定的 PUCCH format 3 信道资源携带在 PDCCH的 ACK/NACK资源指示域中发送给所述终端设备, 其中, 所述 PDCCH包括 DAI的取值大于 1的对应下行主载波上 PDSCH传 输的 PDCCH 和 DAI 的取值大于 1 的指示下行 SPS 资源释放的 PDCCH, 以及对应下行辅载波上 PDSCH传输的 PDCCH;
所述基站在所述确定的 PUCCH format 3信道资源采用 PUCCH format 3方案接收所述终端设备发送的 ACK/NACK反馈信息。
13、 如权利要求 12所述的方法, 其特征在于, 所述基站将所述 确定的 PUCCH format 3信道资源携带在 PDCCH的 ACK/NACK资源 指示域中发送给所述终端设备, 还包括:
所述基站通过所述 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输的 PDCCH和 /或 DAI的取值大于 1的指示下行 SPS资 源释放的 PDCCH中的 ACK/NACK资源指示域,与对应下行辅载波 上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域指示相同的 PUCCH format 3信道资源给所述终端设备; 或,
所述基站通过所述 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输的 PDCCH和 /或 DAI的取值大于 1的指示下行 SPS资源 释放的 PDCCH中的 ACK/NACK资源指示域, 与对应下行辅载波上 PDSCH传输的 PDCCH 中的 ACK/NACK 资源指示域指示不同的 PUCCH format 3信道资源给所述终端设备。
14、 如权利要求 13所述的方法, 其特征在于, 所述基站在所述 确定的 PUCCH format 3信道资源采用 PUCCH format 3方案接收所述 终端设备发送的 ACK/NACK反馈信息, 具体包括:
当所述基站通过所述 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输的 PDCCH和 /或 DAI的取值大于 1的指示下行 SPS资源 释放的 PDCCH中的 ACK/NACK资源指示域, 与对应下行辅载波上 PDSCH传输的 PDCCH 中的 ACK/NACK 资源指示域指示相同的 PUCCH format 3信道资源给所述终端设备时: 当所述基站只在下行主载波上向所述终端设备发送了下行数据, 且所述下行数据至少包括一个 DAI的取值大于 1的 PDCCH对应的下 行主载波上的 PDSCH传输和 /或 DAI的取值大于 1的指示下行 SPS 资源释放的 PDCCH时, 或者当所述基站在下行辅载波上向所述终端 设备发送了有对应 PDCCH 的 PDSCH 时, 所述基站采用 PUCCH format 3 方案, 在通过所述发送的具有 ACK/NACK 资源指示域的 PDCCH配置给所述终端设备的 PUCCH format 3信道资源上,接收所 述终端设备发送的 ACK/NACK反馈信息, 其中, 所述发送的具有 ACK/NACK资源指示域的 PDCCH包括 DAI的取值大于 1的对应下 行主载波上 PDSCH传输的 PDCCH和 DAI的取值大于 1的指示下行 SPS 资源释放的 PDCCH, 以及对应下行辅载波上 PDSCH传输的 PDCCH; 或者,
当所述基站通过所述 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH的 ACK/NACK 资源指示域, 与对应下行辅载波上 PDSCH 传输的 PDCCH 中的 ACK/NACK资源指示域指示不同的 PUCCH format 3信道资源给所述 终端设备时:
当所述基站只在下行主载波上向所述终端设备发送了下行数据, 且所述下行数据至少包括一个 DAI的取值大于 1的 PDCCH对应的下 行主载波上的 PDSCH传输和 /或 DAI的取值大于 1的指示下行 SPS 资源释放的 PDCCH时, 所述基站采用 PUCCH format 3方案, 在所 述通过 DAI 的取值大于 1 的对应下行主载波上 PDSCH 传输的 PDCCH和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH 中的 ACK/NACK 资源指示域携带的信息配置给所述终端设备的 PUCCH format 3信道资源上, 接收所述终端设备发送的 ACK/NACK 反馈信息;
当所述基站在下行辅载波上向所述终端设备发送了有对应 PDCCH的 PDSCH时, 所述基站采用 PUCCH format 3方案, 在所述 通过对应下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资 源指示域携带的信息配置给所述终端设备的 PUCCH format 3信道资 源上, 接收所述终端设备发送的 ACK/NACK反馈信息。
15、 如权利要求 13所述的方法, 其特征在于, 所述方法还包括: 当所述基站通过所述 DAI 的取值大于 1 的对应下行主载波上
PDSCH传输的 PDCCH和 /或 DAI的取值大于 1的指示下行 SPS资源 释放的 PDCCH中的 ACK/NACK资源指示域, 与对应下行辅载波上 PDSCH传输的 PDCCH 中的 ACK/NACK 资源指示域指示相同的 PUCCH format 3信道资源给所述终端设备时: 根据所述终端设备配置的下行载波以及每个配置的下行载波的传输 模式确定的; 或者,
当所述基站通过所述 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH的 ACK/NACK 资源指示域, 与对应下行辅载波上 PDSCH 传输的 PDCCH 中的 ACK/NACK资源指示域指示不同的 PUCCH format 3信道资源给所述 终端设备时:
当所述基站只在下行主载波上向所述终端设备发送了下行数据, 且所述下行数据至少包括一个 DAI的取值大于 1的 PDCCH对应的下 行主载波上的 PDSCH传输和 /或 DAI的取值大于 1的指示下行 SPS 资源释放的 PDCCH 时, 所述基站确定所述终端设备发送的所述 ACK/NACK反馈信息为根据下行主载波的传输模式确定的下行主载 波的 ACK/NACK反馈信息;
当所述基站在下行辅载波上向所述终端设备发送了有对应 PDCCH 的 PDSCH 时, 所述基站确定所述终端设备发送的所述 ACK/NACK反馈信息为根据所述终端设备配置的下行载波以及每个 配置的下行载波的传输模式确定的。
16、 如权利要求 11至 15中任意一项所述的方法, 其特征在于, 所述方法还包括:
所述基站向所述终端设备所发送的多个 DAI的取值大于 1的对 应下行主载波上 PDSCH传输的 PDCCH以及 DAI的取值大于 1的指 示下行 SPS资源释放的 PDCCH中的 ACK/NACK资源指示域所指示 的 PUCCH format 3信道资源相同;
所述基站向所述终端设备所发送的多个对应下行辅载波上 PDSCH 传输的 PDCCH 中的 ACK/NACK 资源指示域所指示的 PUCCH format 3信道资源相同。
17、 如权利要求 12至 15中任意一项所述的方法, 其特征在于, 所述 PDCCH中的 ACK/NACK资源指示域, 具体为:
所述 PDCCH中原有比特域的重用; 或者,
所述 PDCCH中新增加的比特域。
18、 如权利要求 17所述的方法, 其特征在于, 所述 PDCCH中 的 ACK/NACK资源指示域, 具体为:
所述 PDCCH中 TPC比特域的重用。
19、 一种基站, 其特征在于, 包括:
配置模块, 用于确定配置给配置了多个下行载波的终端设备的 PUCCH format 3信道资源;
发送模块, 用于将所述配置模块所确定的 PUCCH format 3信道 资源携带在 PDCCH的 ACK/NACK资源指示域中发送给所述终端设 备,其中,所述 PDCCH包括 DAI的取值大于 1的对应下行主载波上 PDSCH传输的 PDCCH和 DAI的取值大于 1的指示下行 SPS资源释 放的 PDCCH, 以及对应下行辅载波上 PDSCH传输的 PDCCH;
接收模块, 用于根据所述配置模块所确定的 PUCCH format 3信 道资源采用 PUCCH format 3 方案接收所述终端设备发送的 AC謹 ACK反馈信息。
20、 如权利要求 19所述的基站, 其特征在于, 所述发送模块, 具体用于:
通过所述 DAI的取值大于 1的对应下行主载波上 PDSCH传输的 PDCCH和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH 中的 ACK/NACK资源指示域, 与对应下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域指示相同的 PUCCH format 3信 道资源给所述终端设备; 或,
通过所述 DAI的取值大于 1的对应下行主载波上 PDSCH传输的 PDCCH和 /或 DAI的取值大于 1的指示下行 SPS资源释放的 PDCCH 的 ACK/NACK 资源指示域, 与对应下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK资源指示域指示不同的 PUCCH format 3信 道资源给所述终端设备。
21、 如权利要求 20所述的基站, 其特征在于, 所述接收模块, 具体用于:
当所述发送模块通过所述 DAI的取值大于 1 的对应下行主载波 上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH的 ACK/NACK 资源指示域, 与对应下行辅载波上 PDSCH 传输的 PDCCH 中的 ACK/NACK资源指示域指示相同的 PUCCH format 3信道资源给所述 终端设备时:
当所述发送模块只在下行主载波上向所述终端设备发送了下行 数据,且所述下行数据至少包括一个 DAI的取值大于 1的 PDCCH对 应的下行主载波上的 PDSCH传输和 /或 DAI的取值大于 1的指示下 行 SPS资源释放的 PDCCH时,或者当所述发送模块在下行辅载波上 向所述终端设备发送了有对应 PDCCH的 PDSCH时, 所述接收模块 采用 PUCCH format 3方案, 在通过所述发送的具有 ACK/NACK资 源指示域的 PDCCH配置给所述终端设备的 PUCCH format 3信道资 源上, 接收所述终端设备发送的 ACK/NACK反馈信息, 其中, 所述 发送的具有 ACK/NACK资源指示域的 PDCCH包括 DAI的取值大于 1的对应下行主载波上 PDSCH传输的 PDCCH和 DAI的取值大于 1 的指示下行 SPS资源释放的 PDCCH,以及对应下行辅载波上 PDSCH 传输的 PDCCH; 或者,
当所述发送模块通过所述 DAI的取值大于 1 的对应下行主载波 上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH的 ACK/NACK 资源指示域, 与对应下行辅载波上 PDSCH 传输的 PDCCH 中的 ACK/NACK资源指示域指示不同的 PUCCH format 3信道资源给所述 终端设备时:
当所述发送模块只在下行主载波上向所述终端设备发送了下行 数据,且所述下行数据至少包括一个 DAI的取值大于 1的 PDCCH对 应的下行主载波上的 PDSCH传输和 /或 DAI的取值大于 1的指示下 行 SPS资源释放的 PDCCH时, 所述接收模块采用 PUCCH format 3 方案,在所述通过 DAI的取值大于 1的对应下行主载波上 PDSCH传 输的 PDCCH和 /或 DAI的取值大于 1 的指示下行 SPS资源释放的 PDCCH中的 ACK/NACK资源指示域携带的信息配置给所述终端设 备的 PUCCH format 3 信道资源上, 接收所述终端设备发送的 AC謹 ACK反馈信息;
当所述发送模块在下行辅载波上向所述终端设备发送了有对应 PDCCH的 PDSCH时, 所述接收模块采用 PUCCH format 3方案, 在 所述通过对应下行辅载波上 PDSCH传输的 PDCCH中的 ACK/NACK 资源指示域携带的信息配置给所述终端设备的 PUCCH format 3信道 资源上, 接收所述终端设备发送的 ACK/NACK反馈信息。
22、 如权利要求 20所述的基站, 其特征在于, 所述接收模块还 用于:
当所述基站通过所述 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输的 PDCCH和 /或 DAI的取值大于 1的指示下行 SPS资源 释放的 PDCCH中的 ACK/NACK资源指示域, 与对应下行辅载波上 PDSCH传输的 PDCCH 中的 ACK/NACK 资源指示域指示相同的 PUCCH format 3信道资源给所述终端设备时: 终端设备配置的下行载波以及每个配置的下行载波的传输模式确定 的; 或者,
当所述基站通过所述 DAI 的取值大于 1 的对应下行主载波上 PDSCH传输和 /或指示下行 SPS资源释放的 PDCCH的 ACK/NACK 资源指示域, 与对应下行辅载波上 PDSCH 传输的 PDCCH 中的 ACK/NACK资源指示域指示不同的 PUCCH format 3信道资源给所述 终端设备时:
当所述发送模块只在下行主载波上向所述终端设备发送了下行 数据,且所述下行数据至少包括一个 DAI的取值大于 1的 PDCCH对 应的下行主载波上的 PDSCH传输和 /或 DAI的取值大于 1的指示下 行 SPS资源释放的 PDCCH时,所述接收模块确定所述终端设备发送 的所述 ACK/NACK反馈信息为根据下行主载波的传输模式确定的下 行主载波的 ACK/NACK反馈信息;
当所述发送模块在下行辅载波上向所述终端设备发送了有对应
PDCCH的 PDSCH时, 所述接收模块确定所述终端设备发送的所述 ACK/NACK反馈信息为根据所述 UE配置的下行载波以及每个配置 的下行载波的传输模式确定的。
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