WO2015042973A1 - 控制信息的传输方法、用户设备和基站 - Google Patents
控制信息的传输方法、用户设备和基站 Download PDFInfo
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- WO2015042973A1 WO2015042973A1 PCT/CN2013/084757 CN2013084757W WO2015042973A1 WO 2015042973 A1 WO2015042973 A1 WO 2015042973A1 CN 2013084757 W CN2013084757 W CN 2013084757W WO 2015042973 A1 WO2015042973 A1 WO 2015042973A1
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- WIPO (PCT)
- Prior art keywords
- serving cell
- control channel
- uplink control
- physical uplink
- dci format
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 103
- 230000005540 biological transmission Effects 0.000 title claims abstract description 76
- 230000011664 signaling Effects 0.000 claims description 31
- 125000004122 cyclic group Chemical group 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 8
- 238000012790 confirmation Methods 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 230000002776 aggregation Effects 0.000 abstract description 34
- 238000004220 aggregation Methods 0.000 abstract description 34
- 238000010586 diagram Methods 0.000 description 12
- 239000000969 carrier Substances 0.000 description 11
- 238000001228 spectrum Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000008713 feedback mechanism Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 101000741965 Homo sapiens Inactive tyrosine-protein kinase PRAG1 Proteins 0.000 description 1
- 102100038659 Inactive tyrosine-protein kinase PRAG1 Human genes 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 238000011022 operating instruction Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements 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
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1861—Physical mapping arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements 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
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1864—ARQ related signaling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements 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
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1854—Scheduling and prioritising arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
Definitions
- the present invention relates to the field of communications technologies, and in particular, to a method for transmitting control information, a user equipment, and a base station.
- the 3rd Generation Partnership Project (English: 3rd Generation Partnership Project, Abbreviation: 3GPP) Long Term Evolution (English: Long Term Evo book lution, abbreviation: LTE)
- the system includes Frequency Division Duplexing (abbreviation: FDD) And time division duplex (English: Time Division Duplexing, abbreviation: TDD) two ways.
- the FDD system receives and transmits on two separate frequency channels.
- the TDD system transmits and receives on one frequency channel, but the transmission and reception are separated in time, that is, different time slots that use the same frequency carrier are received and transmitted.
- the TDD system supports different uplink and downlink time ratios. The uplink and downlink time ratios can be adjusted according to different service types to meet the asymmetric uplink and downlink service requirements.
- carrier aggregation (English: Carrier Aggregation, CA) is also introduced to meet the requirements of the International Telecommunications Union for the peak data rate requirements of the fourth-generation communication technology. It is also called Spectrum Aggregation. Technology or bandwidth extension (English: Bandwidth Extension) technology.
- carrier aggregation the spectrums of two or more component carriers are aggregated together to obtain a wider transmission bandwidth.
- the spectrum of each component carrier may be adjacent contiguous spectrum or the same frequency band.
- the non-contiguous spectrum within the spectrum is even a discontinuous spectrum in different frequency bands;
- the LTE Rel-8/9 user equipment (English: User Equipment, abbreviation: UE) can only access one of the component carriers for data transmission and reception, and LTE-A
- the user equipment can simultaneously access multiple component carriers for data transmission and reception according to its capabilities and service requirements.
- the existing carrier aggregation systems are all the same base station (English: Evolved NodeB, abbreviation: eNB)
- the carrier under the aggregation is aggregated, or the macro cell with the ideal backhaul link (English: Backhaul) and the carrier aggregation under the micro cell, for example, the macro cell and the micro cell are connected through the optical fiber (the micro cell may also be a radio frequency head).
- the hybrid automatic repeat acknowledgement information is transmitted only on the primary carrier.
- the aggregated carriers have the same duplex mode, for example, both FDD and TDD.
- the duplex mode of the carrier is FDD
- the content of the DCI format of the downlink control channel corresponding to the carrier is determined according to the FDD mode.
- the duplex mode of the carrier is TDD
- the downlink control corresponding to the carrier The content of the channel in the DCI format is determined in the manner of TDD.
- carrier aggregation may evolve into aggregation and/or inter-base station aggregation in different duplex modes.
- control information needs to be resolved, such as: The transmission of control information and uplink control information.
- the technical problem to be solved by the present invention is how to transmit control information under different aggregation modes.
- a method for transmitting control information including:
- the hybrid automatic repeat request corresponding to the first serving cell confirms that the feedback manner of the HARQ-ACK is determined
- the user equipment detects the downlink control channel according to the determined DCI format.
- the user equipment determines to obtain a DCI format of a downlink control channel corresponding to the first serving cell, including: And determining, by the user equipment, a DCI format of a downlink control channel corresponding to the first serving cell according to a duplex mode of the first serving cell and a feedback manner of a HARQ-ACK corresponding to the first serving cell.
- the user equipment determines, according to a duplex mode of the first serving cell and a feedback manner of a HARQ-ACK corresponding to the first serving cell,
- the DCI format of the downlink control channel corresponding to the first serving cell including:
- the duplex mode of the first serving cell is a frequency division duplex FDD
- the duplex mode of the second serving cell of the user equipment is a time division duplex TD book D
- the HARQ of the first serving cell corresponds to
- the ACK is determined by the DCI format of the downlink control channel corresponding to the first serving cell by using the physical uplink control channel (PUCCH) of the second serving cell, and the user equipment determines the DCI format of the downlink control channel corresponding to the first serving cell; or
- the user equipment uses the first serving cell
- the DCI format of the corresponding downlink control channel is determined to be the DCI format corresponding to the TDD; or if the duplex mode of the first serving cell is FDD, if the user equipment has multiple uplink transmission capabilities in one subframe, Determining, by the user equipment, a DCI format of the downlink control channel corresponding to the first serving cell as a DCI format corresponding to the FDD, where the user equipment has a single uplink transmission capability in one subframe, the user equipment
- the DCI format of the downlink control channel corresponding to the first serving cell is determined to be a DCI format corresponding to the TDD; or
- the duplex mode of the first serving cell is TDD
- the duplex mode of the second serving cell of the user equipment is FDD
- the HARQ-ACK corresponding to the first serving cell is carried by the second service.
- the user equipment determines the DCI format of the downlink control channel corresponding to the first serving cell as the DCI format corresponding to the FDD.
- the user setting Detecting the downlink control channel according to the determined DCI format including:
- the user equipment detects the downlink control channel according to the DCI format corresponding to the TDD;
- the DCI format of the downlink control channel detected by the user equipment in the common search space CSS corresponding to the first serving cell is DCI format 1A, and the cyclic redundancy check CRC of the downlink control channel is detected.
- the cell is said to be scrambled by the wireless network temporary identification C-RNTI.
- a method for transmitting control information including: a book base station according to a duplex mode of a first serving cell of a user equipment, and a HARQ corresponding to the first serving cell Determining a DCI format of the downlink control channel corresponding to the first serving cell, where the first serving cell is a serving cell corresponding to the user equipment;
- the base station sends the downlink control channel according to the determined DCI format.
- the base station After the base station determines a DCI format of a downlink control channel corresponding to the first serving cell of the user equipment, the base station sends according to the determined DCI format. Before the downlink control channel, the method includes:
- the base station sends high layer signaling to the user equipment, where the high layer signaling includes indication information indicating the determined DCI format.
- the base station is configured according to a duplex mode of the first serving cell of the user equipment and a feedback manner of a HARQ-ACK corresponding to the first serving cell, Determining a DCI format of the downlink control channel corresponding to the first serving cell, including:
- the duplex mode of the first serving cell is FDD
- the duplex mode of the second serving cell of the user equipment is TDD
- the HARQ-ACK corresponding to the first serving cell is carried by the second service.
- Physical uplink control channel PUCCH transmission on the cell then the base station will The DCI format of the downlink control channel corresponding to the serving cell is determined to be the DCI format corresponding to the TDD; or if the duplex mode of the first serving cell is FDD, and the HARQ-ACK corresponding to the first serving cell is in a radio frame And determining, by the base station, a DCI format of a downlink control channel corresponding to the first serving cell as a DCI format corresponding to the TDD; or
- the base station uses the DCI of the downlink control channel corresponding to the first serving cell.
- the format is determined as the DCI format corresponding to the FDD, and the base station determines the DCI format of the downlink control channel corresponding to the first serving cell as a TDD corresponding if the user equipment has a single uplink transmission capability in one subframe.
- DCI book format or
- the duplex mode of the first serving cell is TDD
- the duplex mode of the second serving cell of the user equipment is FDD
- the HARQ-ACK corresponding to the first serving cell is carried by the second service.
- the base station determines the DCI format of the downlink control channel corresponding to the first serving cell as the DCI format corresponding to the FDD.
- the base station sends the downlink control channel according to the determined DCI format, including:
- the base station sends the downlink control channel according to the DCI format corresponding to the TDD;
- the downlink control channel is carried in the dedicated search space USS corresponding to the first serving cell. .
- a method for transmitting control information including:
- the user equipment receives the high layer signaling from the base station, where the high layer signaling includes indication information indicating a DCI format of the downlink control channel corresponding to the first serving cell of the user equipment, where the DCI format is And corresponding to the first serving cell by the base station according to the duplex mode of the first serving cell
- the feedback mode of HARQ-ACK is determined
- the user equipment detects the downlink control channel according to the determined DCI format.
- the detecting, by the user equipment, the downlink control channel according to the determined DCI format includes:
- the user equipment says to detect the downlink control channel according to the DCI format corresponding to the TDD;
- the user equipment does not expect that the DCI format of the downlink control channel detected by the CSS corresponding to the first service book cell is DCI format 1A, and the detected CRC of the downlink control channel is scrambled by using C-RNTI. .
- a user equipment including:
- a determining module configured to determine a downlink control information DCI format of the downlink control channel corresponding to the first serving cell, where the first serving cell is a serving cell corresponding to the user equipment, and the DCI format is used by the first service
- the duplex mode of the cell and the hybrid automatic repeat request corresponding to the first serving cell confirm the feedback mode of the HARQ-ACK.
- a detecting module configured to detect the downlink control channel according to the determined DCI format.
- the determining module is specifically configured to determine, according to a duplex mode of the first serving cell and a feedback manner of a HARQ-ACK corresponding to the first serving cell, The DCI format of the downlink control channel corresponding to the first serving cell.
- the determining module includes any one or more of the following units:
- a first determining unit configured to: if the duplex mode of the first serving cell is a frequency division duplex FDD, the duplex mode of the second serving cell of the user equipment is a time division duplex TDD, and the first service is The HARQ-ACK corresponding to the cell is transmitted by the physical uplink control channel (PUCCH) carried on the second serving cell, and the DCI format of the downlink control channel corresponding to the first serving cell is determined as the DCI format corresponding to the TDD;
- PUCCH physical uplink control channel
- a second determining unit configured to: if the duplex mode of the first serving cell is FDD, and the HARQ-ACK corresponding to the first serving cell is partially uplink subframe feedback in a radio frame, The DCI format of the downlink control channel corresponding to a serving cell is determined as the DCI format corresponding to the TDD;
- a third determining unit configured to: if the duplex mode of the first serving cell is FDD, if the user equipment has multiple uplink transmit capability books in one subframe, the first serving cell is corresponding to The DCI format of the downlink control channel is determined to be a DCI format corresponding to the FDD. When the user equipment has a single uplink transmission capability in one subframe, the DCI format of the downlink control channel corresponding to the first serving cell is determined as TDD. Corresponding DCI format;
- a fourth determining unit configured to: if the duplex mode of the first serving cell is TDD, the duplex mode of the second serving cell of the user equipment is FDD, and the HARQ-ACK corresponding to the first serving cell passes
- the PUCCH transmission carried on the second serving cell determines the DCI format of the downlink control channel corresponding to the first serving cell as the DCI format corresponding to the FDD.
- the detecting module is specifically configured to: when the duplex mode of the first serving cell is FDD, and the determined DCI format is a DCI format corresponding to TDD Detecting the downlink control channel according to the DCI format corresponding to the TDD; and not expecting that the DCI format of the downlink control channel detected by the common search space CSS corresponding to the first serving cell is DCI format 1A, and detecting The cyclic redundancy check CRC of the downlink control channel is scrambled by the cell radio network temporary identifier C-RNTI.
- a base station including:
- a determining module configured to perform, according to a duplex mode of the first serving cell of the user equipment, and the first service Determining a DCI format of the downlink control channel corresponding to the first serving cell, where the first serving cell is a serving cell corresponding to the user equipment, and a sending module, configured to determine The DCI format transmits the downlink control channel.
- the sending module is further configured to: after the determining module determines a DCI format of a downlink control channel corresponding to the first serving cell of the user equipment, the sending module Before sending the downlink control channel according to the determined DCI format, sending high layer signaling to the user equipment, where the high layer signaling includes indication information indicating the determined DCI format.
- the determining module includes: a first determining unit, configured to: if the duplex mode of the first serving cell is FDD, the second service of the user equipment The duplex mode of the cell is TDD, and the HARQ-ACK corresponding to the first serving cell is transmitted by the physical uplink control channel PUCCH carried on the second serving cell, and the downlink control corresponding to the first serving cell is performed.
- the DCI format of the channel is determined to be the DCI format corresponding to the TDD; or
- a second determining unit configured to: if the duplex mode of the first serving cell is FDD, and the HARQ-ACK corresponding to the first serving cell is partially uplink subframe feedback in a radio frame,
- the DCI format of the downlink control channel corresponding to a serving cell is determined to be a DCI format corresponding to TDD; or
- a third determining unit configured to: if the duplex mode of the first serving cell is FDD, if the user equipment has multiple uplink transmitting capabilities in one subframe, the downlink corresponding to the first serving cell
- the DCI format of the control channel is determined to be the DCI format corresponding to the FDD.
- the base station determines the DCI format of the downlink control channel corresponding to the first serving cell.
- a fourth determining unit configured to: if the duplex mode of the first serving cell is TDD, the duplex mode of the second serving cell of the user equipment is FDD, and the first serving cell corresponds to The HARQ-ACK is transmitted by using the PUCCH carried on the second serving cell, and the DCI format of the downlink control channel corresponding to the first serving cell is determined as the DCI format corresponding to the FDD.
- the sending module is specifically configured to: if the duplex mode of the first serving cell is FDD, and the determined DCI format is a DCI format corresponding to the TDD, The downlink control channel is sent by the DCI format corresponding to the TDD; and when the DCI format of the downlink control channel is DCI format 1A, and the CRC of the downlink control channel is scrambled by using a C-RNTI, the downlink control The system channel is carried in a dedicated search space USS corresponding to the first serving cell.
- a user equipment including:
- a receiving module configured to receive high-level signaling from a base station, where the high-level signaling includes indication information indicating a DCI format of a downlink control channel corresponding to the first serving cell of the user equipment, where the DCI format is determined by the base station
- the duplex mode of the first serving cell and the feedback mode of the HARQ-ACK corresponding to the first serving cell are determined;
- a detecting module configured to detect the downlink control channel according to the determined DCI format.
- the detecting module is specifically configured to: when the duplex mode of the first serving cell is FDD, and the determined DCI format is a DCI format corresponding to the TDD, Detecting the downlink control channel according to the DCI format corresponding to the TDD; and not expecting that the DCI format of the downlink control channel detected by the CSS corresponding to the first serving cell is DCI format 1A, and the downlink is detected.
- the CRC of the control channel is scrambled using the C-RNTI.
- a method for transmitting control information including:
- the user equipment receives physical uplink control channel configuration information
- the user equipment Determining, by the user equipment, the serving cell that carries the first physical uplink control channel according to the physical uplink control channel configuration information; The user equipment sends uplink control information on the serving cell that carries the first physical uplink control channel by using the first physical uplink control channel.
- the uplink control channel configuration information includes a cell index of a serving cell that carries a first physical uplink control channel, and the user equipment is configured according to the physical uplink control channel.
- the configuration information determines a serving cell that carries the first physical uplink control channel, and includes:
- the serving cell that carries the first physical uplink control channel is a secondary serving cell of the user equipment.
- the user equipment sends uplink control information by using the first physical uplink control channel on the serving cell that carries the first physical uplink control channel, including :
- the user equipment sends the first uplink control information by using the first physical uplink control channel on the serving cell that carries the first physical uplink control channel, where the user equipment passes the first serving cell of the user equipment.
- the second physical uplink control channel sends the second uplink control information.
- the determining, by the user equipment, the serving cell that carries the first physical uplink control channel according to the physical uplink control channel configuration information includes:
- the user equipment passes through the serving cell that carries the first physical uplink control channel.
- the first physical uplink control channel sends the first uplink control information, and sends the second uplink control information on the serving cell that carries the second physical uplink control channel.
- the uplink control channel configuration information includes a cell index of a serving cell that carries the first physical uplink control channel, and a serving cell that carries the second physical uplink control channel. a cell index, where the user equipment determines, according to the physical uplink control channel configuration information, a serving cell that carries the first physical uplink control channel and a serving cell that carries the second physical uplink control channel, including:
- the user equipment determines, according to the cell index of the serving cell that carries the first physical uplink control channel in the physical uplink control channel configuration information, the serving cell that carries the first physical uplink control channel, according to the physical uplink control channel configuration.
- the cell index of the serving cell carrying the second physical uplink control channel in the information determines the serving cell carrying the second physical uplink control channel.
- the first uplink control information corresponds to a first serving cell set
- the second uplink control information corresponds to a second serving cell set
- the first The set of serving cells includes at least one serving cell that does not belong to the second set of serving cells.
- the method includes: the duplex mode of the serving cell in the first set of serving cells is frequency division duplex FDD, and the second serving cell set The duplex mode of the serving cell is time division duplex TDD; or
- the backhaul link between the serving cells in the first set of serving cells is an ideal backhaul link
- the backhaul link between the serving cells in the second set of serving cells is an ideal backhaul link
- the first serving cell The backhaul link between the serving cell in the set and the serving cell in the second set of serving cells is a non-ideal backhaul link.
- the serving cell including the first serving cell set and the serving cell included in the second physical cell set are configured according to the physical uplink control channel configuration information. determine.
- the physical uplink control channel configuration information includes a cell index and a location of a serving cell in a first serving cell set corresponding to the first physical uplink control channel. a cell index of the serving cell in the second serving cell set corresponding to the second physical uplink control channel, the serving cell included in the first serving cell set and the serving cell included in the second physical cell set according to the physical uplink
- the control channel configuration information is determined, including:
- the serving cell included in the second set of serving cell books is determined according to the cell index of the serving cell in the second set of serving cells corresponding to the second physical uplink control channel in the physical uplink control channel configuration information.
- a method for transmitting control information including:
- the base station sends physical uplink control channel configuration information to the user equipment, where the physical uplink control channel configuration information includes indication information indicating a serving cell that carries the first physical uplink control channel, where the serving cell is a serving cell corresponding to the user equipment;
- the base station receives the uplink control information sent by the user equipment on the first physical uplink control channel on the serving cell that carries the first physical uplink control channel.
- the indication information indicating the serving cell carrying the first physical uplink control channel is a cell index of the serving cell that carries the first physical uplink control channel.
- the serving cell that carries the first physical uplink control channel is a secondary serving cell of the user equipment.
- the base station is in the first physical uplink control signal on the serving cell that carries the first physical uplink control channel.
- Receiving the uplink control information sent by the user equipment including:
- the physical uplink control channel configuration information includes indication information indicating a serving cell carrying the first physical uplink control channel, where the first physical uplink is carried.
- the serving cell of the control channel is a serving cell corresponding to the user equipment, including:
- the physical uplink control channel configuration information includes indication information indicating a serving cell that carries the first physical uplink control channel, and indication information indicating a serving cell that carries the second physical uplink control channel, where the service that carries the first physical uplink control channel
- the cell and the serving cell carrying the second physical uplink control channel are all serving cells corresponding to the user equipment;
- the receiving, by the base station, the uplink control information sent by the user equipment on the first physical uplink control channel on the serving cell that carries the first physical uplink control channel including:
- the second uplink control information sent by the user equipment is received by the user equipment on the second physical uplink control channel.
- the indication information indicating the serving cell that carries the first physical uplink control channel is a cell index of the serving cell that carries the first physical uplink control channel
- the indication information indicating the serving cell carrying the second physical uplink control channel is a cell index of the serving cell carrying the second physical uplink control channel.
- the first uplink control information corresponds to a first serving cell set of the user equipment, and the second uplink control information is used.
- the first serving cell set includes at least one serving cell that does not belong to the second serving cell set.
- the method includes: the duplex mode of the serving cell in the first set of serving cells is frequency division duplex FDD, and the second serving cell set The duplex mode of the serving cell is time division duplex TDD; or
- the backhaul link between the serving cells in the first set of serving cells is an ideal backhaul link
- the backhaul link in the service novel interval in the second set of serving cells is an ideal backhaul link
- the first serving cell The backhaul link between the serving cell in the set and the serving cell in the second set of serving cells is a non-ideal backhaul link.
- the physical uplink control channel configuration information includes a cell index of a serving cell in a first serving cell set corresponding to the first physical uplink control channel, a cell index of the serving cell in the second serving cell set corresponding to the second physical uplink control channel.
- a user equipment including:
- a receiving module configured to receive physical uplink control channel configuration information
- a determining module configured to determine, according to the physical uplink control channel configuration information, a serving cell that carries the first physical uplink control channel
- a sending module configured to send uplink control information by using the first physical uplink control channel on the serving cell that carries the first physical uplink control channel.
- the uplink control channel configuration information includes a cell index of a serving cell that carries the first physical uplink control channel, where
- the determining module is specifically configured to determine, according to the cell index of the serving cell that carries the first uplink control channel in the physical uplink control channel configuration information, a serving cell that carries the first physical uplink control channel.
- the serving cell that carries the first physical uplink control channel is a secondary serving cell of the user equipment.
- the sending module is specifically configured to: send, by using the first physical uplink control channel, a first uplink control on the serving cell that carries the first physical uplink control channel And transmitting, by the second physical uplink control channel, the second uplink control information on the primary serving cell of the user equipment.
- the determining module is specifically configured to: determine, according to the physical uplink control channel configuration information, a serving cell that carries the first physical uplink control channel, and a second physical uplink that carries the second physical uplink a serving cell of a control channel book;
- the sending module is specifically configured to:
- the physical uplink control channel configuration information includes a cell index of a serving cell that carries the first physical uplink control channel, and a cell index of the serving cell that carries the second physical uplink control channel.
- the determining module specifically includes:
- a first determining unit configured to determine, according to a cell index of a serving cell that carries the first physical uplink control channel in the physical uplink control channel configuration information, a serving cell that carries the first physical uplink control channel;
- the second determining unit is configured to determine, according to the cell index of the serving cell that carries the second physical uplink control channel in the physical uplink control channel configuration information, the serving cell that carries the second physical uplink control channel.
- the first uplink control information corresponds to a first serving cell set
- the second uplink control information corresponds to a second serving cell set
- the first serving cell set Include at least one service that does not belong to the second set of serving cells Community.
- the duplex mode of the serving cell in the first serving cell set is frequency division duplex FDD, and the duplex of the serving cell in the second serving cell set The mode is time division duplex TDD; or
- the backhaul link between the serving cells in the first set of serving cells is an ideal backhaul link
- the backhaul link between the serving cells in the second set of serving cells is an ideal backhaul link
- the first serving cell The backhaul link between the serving cell in the set and the serving cell in the set of said second serving cell is a non-ideal backhaul link.
- the determining module is further configured to determine, according to the physical uplink control channel configuration information, a serving cell and a second part that are included in the first serving cell set.
- the physical uplink control channel configuration information includes a cell index of the serving cell in the first serving cell set corresponding to the first physical uplink control channel, and the second And the cell index of the serving cell in the second serving cell set corresponding to the physical uplink control channel, where the determining module further includes:
- a third determining unit configured to determine, according to a cell index of the serving cell in the first serving cell set corresponding to the first physical uplink control channel in the physical uplink control channel configuration information, that the first serving cell set includes Service area
- a fourth determining unit configured to determine, according to a cell index of the serving cell in the second serving cell set corresponding to the second physical uplink control channel in the physical uplink control channel configuration information, that the second serving cell set includes Service area.
- a base station including:
- a sending module configured to send physical uplink control channel configuration information to the user equipment, where the physical uplink control channel configuration information includes a serving cell that indicates the first physical uplink control channel Instructing information, the serving cell is a serving cell corresponding to the user equipment;
- the receiving module is configured to receive uplink control information sent by the user equipment on the first physical uplink control channel on the serving cell that carries the first physical uplink control channel.
- the indication information indicating the serving cell that carries the first physical uplink control channel is a cell index of the serving cell that carries the first physical uplink control channel.
- the serving cell that carries the first physical uplink control channel is a secondary serving cell of the user equipment.
- the receiving module is specifically configured to: receive, on the first physical uplink control channel, the serving cell that carries the first physical uplink control channel,
- the first uplink control information sent by the user equipment is used to receive the second uplink control information sent by the user equipment on the second physical uplink control channel of the user equipment.
- the physical uplink control channel configuration information includes indication information indicating a serving cell that carries the first physical uplink control channel, where the serving cell that carries the first physical uplink control channel is The serving cell corresponding to the user equipment includes: the physical uplink control channel configuration information, the indication information indicating the serving cell that carries the first physical uplink control channel, and the indication information indicating the serving cell that carries the second physical uplink control channel, The serving cell carrying the first physical uplink control channel and the serving cell carrying the second physical uplink control channel are all serving cells corresponding to the user equipment;
- the receiving module is specifically configured to:
- the indication information indicating the serving cell that carries the first physical uplink control channel is a cell index of the serving cell that carries the first physical uplink control channel
- the indication bearer is second.
- the indication information of the serving cell of the physical uplink control channel is a cell index of the serving cell that carries the second physical uplink control channel.
- the first uplink control information corresponds to a first serving cell set of the user equipment
- the second uplink control information corresponds to a second serving cell set of the user equipment.
- the said first serving cell set includes at least one serving cell that does not belong to the second serving cell set.
- the duplex mode of the serving cell in the first set of serving cells is frequency division duplex FDD, and the dual serving cell in the second serving cell set
- the mode of operation is time division duplex TDD;
- the backhaul link between the serving cells in the first set of serving cells is an ideal backhaul link
- the backhaul link between the serving cells in the second set of serving cells is an ideal backhaul link
- the first serving cell The backhaul link between the serving cell in the set and the serving cell in the second set of serving cells is a non-ideal backhaul link.
- the physical uplink control channel configuration information includes a cell index of the serving cell in the first serving cell set corresponding to the first physical uplink control channel, and the second physical a cell index of the serving cell in the second set of serving cells corresponding to the uplink control channel.
- the duplex mode when different carrier aggregation modes are adopted, the duplex mode and
- the HARQ-ACK feedback mode determines the DCI format corresponding to the control channel, and can be flexibly applied to each field.
- FIG. 1 is a flow chart showing a method of transmitting control information according to an embodiment of the present invention
- FIG. 2 is a flowchart showing a method of transmitting control information according to another embodiment of the present invention
- FIG. 4 is a block diagram showing a structure of a user equipment according to an embodiment of the present invention
- FIG. 5 is a structural block diagram of a base station according to an embodiment of the present invention.
- FIG. 6 is a block diagram showing the structure of a book user equipment according to another embodiment of the present invention.
- FIG. 7 is a structural block diagram of a user equipment according to another embodiment of the present invention.
- FIG. 8 is a flowchart showing a method of transmitting control information according to still another embodiment of the present invention
- FIG. 9 is a flowchart showing a method of transmitting control information according to still another embodiment of the present invention.
- FIG. 11 is a block diagram showing the structure of a base station according to still another embodiment of the present invention. detailed description
- the uplink allocation corresponding to the carrier (UL grant, corresponding downlink control information DCI format 0 or The downlink control information DCI format 4) includes a downlink allocation indication (English: Downlink Assignment Index, abbreviated: DAI) field, and the value of the DAI field indicates that the physical downlink shared channel is scheduled in the downlink associated subframe set corresponding to the uplink subframe n ( English: Physical Downlink Shared Channel Abbreviation: PDSCH) or the total number of subframes of the physical downlink control channel (English: Physical Downlink Control Channe, abbreviated: PDCCH) indicating the downlink SPS release.
- the DAI field does not exist in DCI format 0 or DCI format 4.
- the downlink control information (DCI) format corresponding to the downlink control channel corresponding to the carrier is 1
- the DAI field included in /1A/1B/1D/2/2A/2B/2C/2D the value of the DAI field indicates that the base station schedules the PDSCH or sends the indication downlink in the downlink associated subframe set corresponding to the uplink subframe n.
- the downlink allocation indication field is not included in the DCI format 1/1A/1B/1D/2/2A/2B/2C/2D corresponding to the downlink control channel.
- the downlink control information (DCI) format corresponding to the downlink control channel corresponding to one TDD carrier is 1/1A/1B/1D/2/2A/2B/2C/2D.
- the process number indicates that the domain corresponds to 4 bits
- the downlink control information corresponding to the downlink control channel corresponding to one FDD carrier is DCI format 1/1A.
- the 1Q/1D/2/2A/2B/2C/2D includes the HARQ process number indication field corresponding to 3 bits.
- the terminal in order to support hybrid automatic retransmission, the terminal needs to feed back a hybrid automatic repeat request acknowledgement HARQ-ACK to the base station through a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH), where the hybrid automatic repeat request is performed.
- Confirmation can also be simply called ACK (English: Acknowledgment, Abbreviation: Acknowledgement) /NACK (English: Negative Acknowledgement, abbreviation: Denial response). Therefore, in the subsequent LTE system, it is possible to evolve from two aspects:
- the aggregation of different duplex modes that is, the duplex mode of the aggregated carriers can be different.
- the duplex mode of some carriers is FDD
- the duplex mode of other carriers is TDD.
- HARQ-ACK is transmitted only on the primary carrier.
- the primary carrier can be either an FDD carrier or a TDD carrier.
- the feedback mode of HARQ-ACK when the primary carrier is FDD is different from the feedback mode of HARQ-ACK when the primary carrier is TDD.
- Inter-base station aggregation that is, the aggregated carriers are deployed under different base stations, and the inter-base stations are non-ideal backhauls.
- the base station here may be a macro base station, a micro base station, etc., for example, when the aggregated carrier is from two different base stations, the scenario may also be referred to as dual connectivity (Dual connectivity in the evolution direction, because the base stations are non-ideal On the backhaul line, the HARQ-ACKs corresponding to the carriers deployed in different base stations can only be fed back on the corresponding uplink carriers, and cannot be fed back only on the primary carrier as in the existing CA system.
- the UE has multiple transmission capabilities in one subframe, and one subframe can use multiple PUCCHs to feed back HARQ-ACK. If the user equipment UE has only uplink single transmission capability, that is, the UE can only correspond to one cell in one subframe. On the uplink carrier, the UE needs to work in different cells in a time division multiplexing manner, so that for each cell, Only one partial subframe of a radio frame is used for uplink transmission. At this time, the HARQ-ACK corresponding to one carrier can only be fed back on some uplink subframes.
- the mechanism for feeding back HARQ-ACK may be different for users with different scenarios and different capabilities.
- the content and size of the DCI format corresponding to the FDD and the DCI format corresponding to the TDD may be different, mainly due to the HARQ-ACK feedback mode in FDD and the HARQ-ACK in TDD.
- the feedback mode is different.
- the corresponding DCI format also corresponds to the duplex mode.
- the DCI format can be jointly determined according to the duplex mode and the feedback mode of the HARQ-ACK to meet the requirements of different application scenarios.
- FIG. 1 shows a flow chart of a method of transmitting control information according to an embodiment of the present invention.
- the method for transmitting the control information may include:
- Step 101 The user equipment determines to obtain a downlink control information DCI format of the downlink control channel corresponding to the first serving cell, where the first serving said cell is a serving cell corresponding to the user equipment, and the DCI format is the first
- the duplex mode of the serving cell and the hybrid automatic repeat request corresponding to the first serving cell confirm the feedback mode of the HARQ-ACK;
- the serving cell corresponding to the user equipment may refer to a serving cell configured by the network side device (for example, a base station) to the user equipment, or a serving cell serving the user equipment, or a serving cell accessed by the user equipment.
- the serving cell corresponding to the user equipment may include a first serving cell and a second serving cell.
- the serving cell corresponding to the user equipment may also be referred to as a component carrier of the user equipment
- the first serving cell may also be referred to as a first component carrier
- the second serving cell may also be referred to as a second component carrier.
- the downlink control channel in the embodiment of the present invention may refer to a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (English: Enhanced Physical Downlink Control Channel, abbreviated as EPDCCH).
- the downlink control channel corresponding to the first serving cell may be a downlink control channel corresponding to the physical downlink shared channel (PDSCH) carried on the first serving cell, where the downlink control channel corresponding to the PDSCH transmission may be carried in the first On the serving cell or other serving cell.
- the downlink control channel corresponding to the first serving cell may also be a downlink control channel that is used to indicate the downlink semi-persistent scheduling (English: Semi-Persistent Scheduling, abbreviated: SPS).
- determining the downlink control information DCI format of the downlink control channel corresponding to the first serving cell may determine downlink control information of the downlink control channel corresponding to the first serving cell
- the DCI format is the DCI format corresponding to the FDD or the DCI format corresponding to the TDD.
- the downlink control information DCI format may refer to the DCI format 1, the DCI format 1A, the DCI format 1B, the DCI format 1D, the DCI format 2A, the DCI format 2B, and the DCI format 2C.
- Each DCI format carries different content in different duplex modes.
- the DCI format corresponding to the FDD may be that the DCI format determines the content carried in the DCI format according to the FDD condition; the DCI format corresponding to the TDD may refer to the DCI format determining the content carried in the DCI format according to the TDD condition.
- the DCI format 0 and the DC corresponding to the TDD include the downlink allocation indication (DAI) field when the uplink and downlink ratio of the TDD carrier is 1 to 6 in the uplink and downlink ratio, and the value of the DAI field is represented in the uplink subframe n.
- DAI downlink allocation indication
- the total number of subframes in which the PDCCH of the downlink SPS release is scheduled is sent in the corresponding downlink associated subframe set, and the FDD corresponding DCI format 0 and DCI format 4 do not include the downlink allocation indication DAI domain.
- the DCI format corresponding to the TDD, the DCI format 1A, the DCI format 1B, the DCI format 1D, the DCI format 2A, the DCI format 2B, the DCI format 2C, and the DCI format 2D include DAI, and the value of the field indicates that the base station corresponds to the uplink subframe n.
- the number of accumulated subframes (English: accumulative) of the PDSCH or the subframe in which the PDCCH indicating the release of the downlink SPS is transmitted is allocated in the downlink associated subframe set, and the DCI format 1, DCI format 1A, DCI format 1B, DCI format corresponding to the FDD
- the DAI is not included in 1D, DCI format 2A, DCI format 2B, DCI format 2C, and DCI format 2D.
- the DCI format corresponding to the TDD 1, the DCI format 1A, the DCI format 1B, the DCI format 1D, the DCI format 2A, the DCI format 2B, the DCI format 2C, and the DCI format 2D include a 4-bit HARQ process indication field, and the FDD-compatible DCI format 1
- the DCI format 1A, the DCI format 1B, the DCI format 1D, the DCI format 2A, the DCI format 2B, the DCI format 2C, and the DCI format 2D include a 3-bit HARQ process indication field.
- the downlink control information DCI format of the downlink control channel corresponding to the first serving cell is determined, where the cyclic redundancy check (English: Cyclic Redundancy Check, CRC) scrambling can use the cell
- the radio network temporary identifier English: Cell Radio Network Temporary Identifier, abbreviation: C-RNTI
- SPS semi-persistent scheduling
- the user equipment may determine the DCI format of the downlink control information of the downlink control channel corresponding to the first serving cell according to the rule for determining the DCI format adopted by the predefined different scenarios, where the user equipment may be according to the first
- the DCI format of the downlink control channel corresponding to the first serving cell is determined by the duplex mode of the serving cell and the feedback mode of the HARQ-ACK corresponding to the first serving cell.
- the predefined rule may include any one or more of the following:
- Scenario 2 If the duplex mode of the first serving cell is FDD, and the HARQ-ACK corresponding to the first serving cell is in a partial uplink subframe feedback in a radio frame, the user equipment
- the DCI format of the downlink control channel corresponding to a serving cell is determined to be a DCI format corresponding to TDD; or
- Scenario 3 If the duplex mode of the first serving cell is FDD, and the HARQ-ACK corresponding to the first serving cell is transmitted by the PUCCH carried on the FDD serving cell, the user equipment uses the first service.
- the DCI format corresponding to the cell is the DCI format corresponding to the FDD; or
- Scenario 4 If the duplex mode of the first serving cell is FDD, if the user equipment has multiple uplink transmission capabilities in one subframe, the user equipment downlinks the first serving cell
- the DCI format of the control channel is determined as the DCI format corresponding to the FDD.
- the user equipment uses the DCI format of the downlink control channel corresponding to the first serving cell. Determine the DCI format corresponding to TDD; or
- Scenario 5 If the duplex mode of the first serving cell is TDD, the duplex mode of the second serving cell of the user equipment is FDD, and the HARQ-ACK corresponding to the first serving cell passes through And performing, by the user equipment, the DCI format of the downlink control channel corresponding to the first serving cell as a DCI format corresponding to the FDD; or
- the duplex mode of the first serving cell is TDD
- the HARQ-ACK corresponding to the first serving cell is transmitted by the PUCCH carried on the TDD serving cell
- the user equipment uses the first service.
- the DCI format corresponding to the cell is the DCI format corresponding to the TDD.
- Step 102 The user equipment detects the downlink control channel according to the determined DCI format.
- the user equipment can obtain the size of the DCI format from the determined DC format, that is, the number of information bits carried by the DCI format, and decode the downlink control channel based on the size of the DCI format, and based on the determined
- the book indication field included in the DCI format parses the decoded content.
- the determined DCI format is the DCI format corresponding to the TDD
- the user equipment detects the downlink control channel according to the DCI format corresponding to the TDD in step 102.
- the DCI format of the downlink control channel detected by the user equipment in the common search space (English: Common Search Space, abbreviation: CSS) corresponding to the first serving cell is DCI format 1A or DCI format 0, and the The cyclic redundancy check (English: Cyclic Redundancy Check, CRC) of the detected downlink control channel is scrambled by C-RNTI.
- the CSS corresponding to the first serving cell may refer to the CSS of the downlink control channel.
- the user equipment detects the downlink control channel according to the DCI format corresponding to the TDD.
- the DCI format of the downlink control channel detected by the user equipment in the CSS corresponding to the first serving cell is DCI format 1A or DCI format 0, and the CRC of the detected downlink control channel is increased by using C-RNTI.
- the user equipment discards or ignores the information indicated by the downlink control channel, or the user equipment does not perform PDSCH detection according to the indication of the downlink control channel.
- the CSS corresponding to the first serving cell may serve multiple user equipments, and the DCI format that may be transmitted in the CSS includes DCI format 0, DCI format 1A, DCI format 3, and DCI format 3A. And DCI format 1C.
- the load of DCI format 0 and DCI format 1A (English: payload) is aligned, that is, padding bits may be added so that the load of DCI format 0 and DCI format 1A is the same, or DCI is made.
- Format 0 and DCI format 1A correspond to the same number of information bits.
- the load size of DCI format 3 and DCI format 3A is aligned with DCI format 0, that is, it is aligned with DCI format 1A.
- the information carried in the DCI format 3 and the DCI format 3A for multiple users needs to be notified to multiple users, that is, multiple users need to follow the load of the consistent DCI format 3 and the DCI format 3A.
- the downlink control channel is said to be detected.
- the DCI format determined by the user equipment may not be determined according to the duplex mode of the first serving cell.
- the duplex mode of the first serving cell in step 101 is FDD
- the determined DCI format is the DCI format corresponding to the TDD
- the DCI format determined by the user equipment is not in accordance with the duplex mode FDD of the first serving cell.
- the DCI format determined by step 101 may be different.
- the DCI format determined by some users is the DCI format corresponding to the FDD
- the DCI format determined by some users is the DCI format corresponding to the TDD, so that different users are determined.
- the size of the DCI format 1A is inconsistent.
- DCI formats 3 and 3A when different users detect DCI formats 3 and 3A, it can be assumed that different DCI formats 3 and 3A are used to detect the downlink control channel of the DCI format 3 or DCI format 3A. Some users cannot correctly detect the downlink control channel whose DCI format is DCI format 3 or DCI format 3A.
- step 102 may further include:
- the user equipment detects the downlink control channel according to the DCI format corresponding to the TDD in step 102. And the user equipment does not expect the DCI format of the downlink control channel detected by the CSS corresponding to the first serving cell to be DCI format 1A or DCI format 0, and the CRC of the detected downlink control channel is increased by using C-RNTI. Disturb.
- the CSS corresponding to the first serving cell, where the common search space may refer to the CSS of the downlink control channel.
- the duplex mode of the first serving cell is TDD
- the determined DCI format is DCI corresponding to the FDD.
- the user equipment detects the downlink control channel according to the DCI format corresponding to the TDD, and the DCI format of the downlink control channel detected by the user equipment in the CSS corresponding to the first serving cell is DCI format.
- the DCI format of the downlink control channel detected by the user equipment in the CSS corresponding to the first serving cell is DCI format.
- the 1C or DCI format is 0, and the detected CRCC-RNTI of the downlink control channel is scrambled, the user equipment discards or ignores the information indicated by the downlink control channel, or the user equipment does not follow the indication of the downlink control channel.
- Perform PDSCH detection refer to the description of the DCI format of the first control cell in which the DCI format of the downlink control channel is DCI format 1A or format 0 when the duplex mode is FDD.
- the user equipment when the carrier aggregation mode is adopted, the user equipment can determine the DCI format corresponding to the control channel according to the duplex mode and the HARQ-ACK feedback book mode, and can be flexibly applied to each scenario.
- the DCI format is a DCI format corresponding to the time division duplex TDD.
- the downlink allocation indication field is also available, so that the user equipment can perform HARQ-ACK feedback according to the downlink allocation indication field, for example, performing HARQ-ACK ordering according to the downlink allocation indication field, so that the HARQ-ACK bit can be more equalized during encoding. , thereby improving the transmission performance of HARQ-ACK.
- the duplex mode of the first serving cell is TDD
- the duplex mode of the second serving cell is FDD
- the HARQ-ACK corresponding to the first serving cell is transmitted by using the PUCCH carried on the second serving cell
- the DCI format of the downlink control information is a DCI format corresponding to the frequency division duplex FDD, so that the downlink control channel does not need to transmit a redundant DAI indication field, thereby reducing the size of the DCI format and improving the usefulness. Information transmission performance.
- the DCI format of the downlink control channel is defined as DCI format 1A or format 0, and the downlink control channel in which the CRC is scrambled by using the C-RNTI is not in the first service.
- the corresponding CSS is transmitted in the area, so as to avoid different users from understanding the load of DCI format 3 and 3A, which causes some users to not correctly detect DCI 3 and DCI 3A.
- the solution to the problem can also determine the DCI format 0 or the DCI format 1A load size according to the duplex mode of the first serving cell by defining the DCI format 3 and the DCI format 3A transmission, thereby determining the DCI format 3-charge DCI format.
- FIG. 2 is a flow chart showing a method of transmitting book control information according to another embodiment of the present invention. As shown in FIG. 2, the method for transmitting the control information may include:
- Step 201 The base station determines, according to a duplex mode of the first serving cell of the user equipment, and a feedback manner of the HARQ-ACK corresponding to the first serving cell, a DCI format of the downlink control channel corresponding to the first serving cell, where The first serving cell is a serving cell corresponding to the user equipment.
- the related embodiments and examples of the DCI format of the downlink control channel corresponding to the serving cell, the first serving cell, the second serving cell, the downlink control channel, and the first serving cell in the embodiment may be referred to the foregoing implementation.
- the related description in the example will not be described here.
- the base station determines the first serving cell according to the duplex mode of the first serving cell of the user equipment and the feedback manner of the HARQ-ACK corresponding to the first serving cell.
- the specific scenario of the DCI format of the corresponding downlink control channel may include any one or more of the following:
- Scenario 1 If the duplex mode of the first serving cell is FDD, the duplex mode of the second serving cell of the user equipment is TDD, and the HARQ-ACK corresponding to the first serving cell is carried by the The physical uplink control channel PUCCH transmission on the second serving cell, the base station determining the DCI format of the downlink control channel corresponding to the first serving cell as the DCI format corresponding to the TDD; or Scenario 2: If the duplex mode of the first serving cell is FDD, and the HARQ-ACK corresponding to the first serving cell is backed up in a partial uplink subframe in a radio frame, the base station will be the first The DCI format of the downlink control channel corresponding to the serving cell is determined to be the DCI format corresponding to the TDD; or
- the base station will be the first serving cell.
- the corresponding DCI format is said to be the DCI format corresponding to FDD; or
- Scenario 4 If the duplex mode of the first serving cell is FDD, if the user equipment has multiple uplink transmission capabilities in one subframe, the base station reads the downlink corresponding to the first serving cell.
- the DCI format of the control channel is determined to be the DCI format corresponding to the FDD.
- the base station determines the DCI format of the downlink control channel corresponding to the first serving cell.
- Scenario 5 If the duplex mode of the first serving cell is TDD, the duplex mode of the second serving cell of the user equipment is FDD, and the HARQ-ACK corresponding to the first serving cell is carried by the a PUCCH transmission on the second serving cell, the base station determining, by the base station, a DCI format of the downlink control channel corresponding to the first serving cell as a DCI format corresponding to the FDD; or
- the base station will be the first serving cell.
- the corresponding DCI format is the DCI format corresponding to TDD.
- the high-level signaling in addition to the indication information of the DCI format of the downlink control channel corresponding to the first serving cell, may also carry the indication information for configuring the first serving cell to the user equipment.
- Step 203 The base station sends the downlink control channel according to the determined DCI format.
- the base station when the duplex mode of the first serving cell is FDD, and the determined DCI format is the DCI format corresponding to the TDD, the base station sends the downlink control channel according to the DCI format corresponding to the TDD, and when When the DCI format of the downlink control channel is DCI format 1A or DCI format 0, and the CRC of the downlink control channel is scrambled by the C-RNTI, the downlink control channel is only carried in the dedicated search space corresponding to the first serving cell (English: UE-Specific Search Space, abbreviation: USS).
- the CSS corresponding to the first serving cell where the CSS can refer to the CSS of the downlink control channel.
- the base station when the duplex mode of the first serving cell is FDD, and the determined DCI format is the DCI format corresponding to the TDD, the base station does not send the DCI format of the USS corresponding to the first serving cell to DCI format 1 A or DCI format 0, And the CRC uses the C-RNTI to perform the scrambling control channel.
- the CSS corresponding to the first serving cell serves multiple user equipments, and the DCI formats that may be transmitted in the common search space include DCI format 0, DCI format 1A, DCI format 3, DCI format 3A, and DCI format 1C. .
- the load of DCI format 0 and DCI format 1A is aligned, that is, the base station may add padding bits so that the load of DCI format 0 and DCI format 1A are the same, or DCI format 0 and DCI are made.
- the number of information bits corresponding to the format 1A is the same.
- the load sizes of the DCI format 3 and the DCI format 3A are aligned with the DCI format 0, that is, aligned with the DCI format 1A.
- the downlink control channel is detected.
- the DCI format determined by the base station may not be determined according to the duplex mode of the first serving cell, for example, when the duplex mode of the first serving cell in step 201 is FDD,
- the DCI format determined by the step 201 is the DCI format corresponding to the TDD
- the DCI format determined by the base station is not determined according to the duplex mode FDD of the first serving cell.
- the DCI format determined by different users is different.
- the DCI format determined by some users is the DCI format corresponding to the FDD
- the DCI format determined by some users is the DCI format corresponding to the TDD
- the DCI is determined by different users.
- the size of the format 1A is inconsistent.
- the step 201 and the step 203 may further include: Step 202: The base station sends the high layer signaling to the user equipment, where the high layer signaling includes indication information indicating the determined DCI format.
- the base station when the carrier aggregation mode is adopted, the base station can determine the DCI format corresponding to the control channel according to the duplex mode and the HARQ-ACK feedback mode, and can be flexibly applied to each scenario.
- the base station notifies the user equipment of the downlink control information DCI format of the downlink control channel corresponding to the first serving cell by using the high layer signaling, where the base station book can configure the FDD corresponding according to the specific application scenario, the capability of the UE, and the HARQ-ACK feedback mechanism.
- the DCI format or the DCI format corresponding to TDD is flexibly applied to each scenario, and it is not necessary to describe all scenarios that may use different DCI formats in the standard protocol, thereby reducing standardization efforts.
- the duplex mode of the first serving cell is FDD
- the duplex mode of the second serving cell is FDD
- the HARQ-ACK corresponding to the first serving cell is transmitted by using the PUCCH carried on the second serving cell
- the DCI format is the DCI format corresponding to the TDD.
- the allocation indication field is also available, so that the user equipment can perform HARQ-ACK feedback according to the downlink allocation indication field, for example, performing HARQ-ACK ordering according to the downlink allocation indication field, so that the HARQ-ACK bit can be more equalized during encoding. Thereby improving the transmission performance of HARQ-ACK.
- the duplex mode of the first serving cell is TDD
- the duplex mode of the second serving cell is FDD
- the HARQ-ACK corresponding to the first serving cell is transmitted by using the PUCCH carried on the second serving cell
- the DCI format is the DCI format corresponding to the FDD, so that the downlink control channel does not need to transmit a redundant DAI indication field, thereby reducing the size of the DCI format and improving the transmission performance of useful information.
- the DCI format of the downlink control channel is defined as DCI format 1A or format 0, and the downlink control channel that is scrambled by the CRC by using the C-RNTI is not transmitted in the CSS corresponding to the first serving cell, thereby avoiding Different users have different understandings of the load of DCI format 3 and 3A, which causes some users to not correctly detect DCI 3 and DCI 3A.
- the DCI format 3 or DCI format 1A load size may be determined according to the duplex mode of the first serving cell by defining the DCI format 3 and the DCI format 3A transmission, thereby determining the DCI format 3-load DCI format.
- the load size of 3A; or the DCI format used by a group of users corresponding to DCI format 3 and DCI format 3A is consistent, that is, when the base station groups the user equipment, according to the DCI format 1A or DCI format that the user equipment may use.
- the book will be divided into a group by users of the DCI format corresponding to the FDD, and the users of the DCI format corresponding to the TDD will be grouped into one group; or, multiple users corresponding to the DCI format 3 or the DCI format 3A will use the FDD corresponding
- the DCI format or both use the DCI format corresponding to TDD.
- FIG. 3 shows a flow chart of a method of transmitting control information according to still another embodiment of the present invention.
- the method for transmitting the control information may include:
- Step 301 The user equipment receives the high layer signaling from the base station, where the high layer signaling includes indication information indicating a DCI format of the downlink control channel corresponding to the first serving cell of the user equipment, where the DCI format is determined by the base station according to the base station.
- the duplex mode of the first serving cell and the feedback mode of the HARQ-ACK corresponding to the first serving cell are determined.
- the related embodiments and examples of the DCI format of the downlink control channel corresponding to the serving cell, the first serving cell, the second serving cell, the downlink control channel, and the first serving cell in the embodiment may be referred to the foregoing implementation.
- the related description in the example will not be described here.
- the indication information included in the high-level signaling may be determined by the base station according to the duplex mode of the first serving cell and the feedback manner of the HARQ-ACK corresponding to the first serving cell in different application scenarios. For details, refer to related descriptions of scenario 1 to scenario 6 in the foregoing embodiment.
- Step 302 The user equipment detects the downlink control channel according to the determined DCI format. For details, refer to step 102 and related description in the foregoing embodiment.
- the user equipment may control the DCI format corresponding to the channel according to the high layer signaling received from the base station, where the base station may be according to a specific application scenario, the UE Configuring the DCI format corresponding to the FDD or the DCI format corresponding to the TDD, such as the capability and the HARQ-ACK feedback mechanism, can be flexibly applied to each scenario, and it is not necessary to describe all scenarios that may use different DCI formats in the standard protocol, and reduce the standardization. Work hard.
- FIG. 4 is a block diagram showing the structure of a user book device according to an embodiment of the present invention.
- the user equipment can include:
- a determining module 41 configured to determine a downlink control information DCI format of the downlink control channel corresponding to the first serving cell, where the first serving cell is a serving cell corresponding to the user equipment, and the DCI format is the first The duplex mode of the serving cell and the hybrid automatic repeat request corresponding to the first serving cell confirm the feedback mode of the HARQ-ACK;
- the detecting module 42 is configured to detect the downlink control channel according to the determined DCI format.
- the related embodiments and examples of the DCI format of the downlink control channel corresponding to the serving cell, the first serving cell, the second serving cell, the downlink control channel, and the first serving cell in the embodiment may be referred to the foregoing implementation.
- the related description in the example will not be described here.
- the determining module 41 is specifically configured to determine the first service according to a duplex mode of the first serving cell and a feedback manner of a HARQ-ACK corresponding to the first serving cell.
- the determining module 41 includes any one or more of the following units:
- a first determining unit 411 configured to: if the duplex mode of the first serving cell is frequency division duplex FDD, the duplex mode of the second serving cell of the user equipment is time division duplex TDD, and the The HARQ-ACK corresponding to the serving cell is transmitted by the physical uplink control channel (PUCCH) carried on the second serving cell, and the DCI format of the downlink control channel corresponding to the first serving cell is determined as the DCI format corresponding to the TDD; See scenario 1 and related description of the above method embodiment.
- PUCCH physical uplink control channel
- a second determining unit 412 configured to: if the duplex mode of the first serving cell is FDD, and the HARQ-ACK corresponding to the first serving cell is partially uplink subframe feedback in a radio frame,
- the DCI format of the downlink control channel corresponding to the first serving cell is determined to be the DCI format corresponding to the TDD; see scenario 2 and related description of the foregoing method embodiment.
- a third determining unit 413 configured to: if the duplex mode of the first book serving cell is FDD, if the user equipment has multiple uplink transmitting capabilities in one subframe, corresponding to the first serving cell
- the DCI format of the downlink control channel is determined to be a DCI format corresponding to the FDD.
- the DCI format of the downlink control channel corresponding to the first serving cell is determined as The DCI format corresponding to TDD; see scenario 4 of the above method embodiment and its related description.
- the fourth determining unit 414 is configured to: if the duplex mode of the first serving cell is TDD, the duplex mode of the second serving cell of the user equipment is FDD, and the HARQ-ACK corresponding to the first serving cell And determining, by the PUCCH transmission on the second serving cell, the DCI format of the downlink control channel corresponding to the first serving cell as the DCI format corresponding to the FDD. See scenario 5 of the above method embodiment and its related description.
- the detecting module 42 is specifically configured to: when the duplex mode of the first serving cell is FDD, and the determined DCI format is a DCI format corresponding to the TDD, according to the The DCI format corresponding to the TDD detects the downlink control channel; and the DCI format of the downlink control channel that is not expected to be detected in the common search space CSS corresponding to the first serving cell is DCI format 1A, and the detected downlink is detected.
- the cyclic redundancy check CRC of the control channel is scrambled using the cell radio network temporary identity C-RNTI.
- the user equipment in this embodiment can determine the DCI format corresponding to the control channel according to the duplex mode and the HARQ-ACK feedback mode, and can be flexibly applied to each field.
- FIG. 5 is a block diagram showing the structure of a base station according to an embodiment of the present invention. As shown in FIG. 5, the base station can include:
- a determining module 51 configured to determine a DCI format of a downlink control channel corresponding to the first serving cell according to a duplex mode of the first serving cell of the user equipment and a feedback manner of the HARQ-ACK corresponding to the first serving cell
- the first serving cell is a serving cell corresponding to the user equipment
- the sending module 52 is configured to send the downlink control channel according to the determined DCI format.
- the related embodiments and examples of the DCI format of the downlink control channel corresponding to the serving cell, the first serving cell, the second serving cell, the downlink control channel, and the first serving cell in the embodiment may be referred to the foregoing implementation.
- the related description in the example will not be described here.
- the sending module 52 is further configured to: after the determining module 51 determines a DCI format of a downlink control channel corresponding to the first serving cell of the user equipment, the sending module 51 is configured according to Determining a DCI format, before sending the downlink control channel, sending high layer signaling to the user equipment, where the high layer signaling includes indication information indicating the determined DCI format.
- the determining module 51 may include any one or more of the following units:
- the first determining unit 511 is configured to: if the duplex mode of the first serving cell is FDD, the duplex mode of the second serving cell of the user equipment is TDD, and the HARQ-ACK corresponding to the first serving cell
- the DCI format of the downlink control channel corresponding to the first serving cell is determined to be a TDD corresponding to the physical uplink control channel (PUCCH) transmitted on the second serving cell.
- DCI format see scenario 1 and related description of the above method embodiment.
- a second determining unit 512 configured to: if the duplex mode of the first serving cell is FDD, and the HARQ-ACK corresponding to the first serving cell is in a partial uplink subframe feedback in a radio frame,
- the DCI format of the downlink control channel corresponding to the first serving cell is determined as the DCI format corresponding to the TDD; see scenario 2 and related description of the foregoing method embodiment.
- a third determining unit 513 configured to: if the duplex mode of the first serving cell is FDD, if the user equipment has multiple uplink transmission capabilities in one subframe, corresponding to the first serving cell
- the DCI format of the downlink control channel is determined to be a DCI format corresponding to the FDD, and the base station sets the downlink control channel corresponding to the first serving cell in a case where the user equipment has a single uplink transmission capability in one subframe.
- the DCI format is determined as the DCI format corresponding to the TDD; see scenario 4 of the above method embodiment and its related description.
- a fourth determining unit 514 configured to: if the duplex mode of the first serving cell is TDD, the duplex mode of the second serving cell of the user equipment is FDD, and the HARQ-ACK corresponding to the first serving cell And determining, by the PUCCH transmission on the second serving cell, the DCI format of the downlink control channel corresponding to the first serving cell as the DCI format corresponding to the FDD. See scenario 5 of the above method embodiment and its related description.
- the sending module 52 is specifically configured to: if the duplex mode of the first serving cell is FDD, and the determined DCI format is a DCI format corresponding to the TDD, according to the TDD Transmitting, by the corresponding DCI format, the downlink control channel; and when the DCI format of the downlink control channel is DCI format 1A, and the CRC of the downlink control channel is scrambled by using a C-RNTI, the downlink control channel is carried by The dedicated search space USS corresponding to the first serving cell. For details, refer to step 203 of the above method embodiment and related description.
- the base station in this embodiment can determine the DCI format corresponding to the control channel according to the duplex mode and the HARQ-ACK feedback mode, and can be flexibly applied to each field. And the transmitting module of the base station notifies the DCI format of the downlink control information of the downlink control channel corresponding to the first serving cell of the user equipment by using the high layer signaling, where the base station can be configured according to the specific application scenario, the capability of the UE, and the HARQ-ACK feedback mechanism.
- the DCI format corresponding to the FDD or the DCI format corresponding to the TDD is flexibly applied to each scenario, and it is not necessary to describe all scenarios that may use different DCI formats in the standard protocol, thereby reducing the standardization effort.
- FIG. 6 is a block diagram showing the structure of a user equipment according to another embodiment of the present invention. As shown in FIG. 6, the user equipment may include:
- the receiving module 61 is configured to receive, by the base station, a high-level letter-letter command, where the high-level signaling includes indication information indicating a DCI format of a downlink control channel corresponding to the first serving cell of the user equipment, where the DCI format is Determining, by the base station, according to the duplex mode of the first serving cell and the feedback manner of the HARQ-ACK corresponding to the first serving cell;
- the detecting module 62 is configured to detect the downlink control channel according to the determined DCI format.
- the related embodiments and examples of the DCI format of the downlink control channel corresponding to the serving cell, the first serving cell, the second serving cell, the downlink control channel, and the first serving cell in the embodiment may be referred to the foregoing implementation.
- the related description in the example will not be described here.
- the detecting module 62 is specifically configured to: when the duplex mode of the first serving cell is FDD, and the determined DCI format is a DCI format corresponding to the TDD, according to the TDD Detecting, by the corresponding DCI format, the downlink control channel; and not expecting that the DCI format of the downlink control channel detected by the CSS corresponding to the first serving cell is DCI format 1A, and the detected CRC of the downlink control channel Scrambling is performed using C-RNTI.
- the user equipment in this embodiment may control the DCI format corresponding to the channel according to the high layer signaling received from the base station, where the base station may be based on the specific application scenario, the capability of the UE, and the HARQ-ACK.
- the feedback mechanism such as the DCI format corresponding to the FDD or the DCI format corresponding to the TDD, is flexibly applied to each scenario, and it is not necessary to use all the different DCIs. Formatted scenarios are described in standard protocols, reducing standardization efforts.
- FIG. 7 is a block diagram showing the structure of a user equipment according to another embodiment of the present invention.
- the control information transmission device 1100 may be a host server having a computing capability, a personal computer PC, or a portable computer or terminal that can be carried.
- the specific embodiments of the present invention do not limit the specific implementation of the computing node.
- the control information transmission device 1100 is said to include a processor 1110, a communication interface 1120, a memory 1130, and a bus 1140.
- the processor 1110, the communication interface 1120, and the memory storage 1130 complete communication with each other via the bus 1140.
- Communication interface 1120 is for communicating with network devices, such as virtual machine management centers, shared storage, and the like.
- the processor 1110 is for executing a program.
- the processor 1110 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention.
- ASIC Application Specific Integrated Circuit
- the memory 1130 is used to store files.
- the memory 1130 may include a high speed RAM memory, and may also include a non-volatile memory such as at least one disk memory.
- Memory 1130 can also be a memory array.
- the memory 1130 may also be partitioned, and the blocks may be combined into a virtual volume according to certain rules.
- the above program may be a program code including computer operating instructions. This program can be used to:
- the DCI format is a duplex mode of the first serving cell
- the DCI format is a duplex mode of the first serving cell
- the program can also be used to:
- the base station Receiving high-level signaling from the base station, where the high-level signaling includes indication information indicating a DCI format of a downlink control channel corresponding to the first serving cell of the user equipment, where the DCI format is determined by the base station according to the first service
- the duplex mode of the cell and the feedback mode of the HARQ-ACK corresponding to the first serving cell are determined;
- the downlink control channel is detected according to the determined DCI format.
- the function is implemented in the form of computer software and sold or used as a stand-alone product, it may be considered to some extent that all or part of the technical solution of the present invention (for example, a part contributing to the prior art) is It is embodied in the form of computer software products.
- the computer software product is typically stored in a computer readable non-volatile storage medium, including instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform all of the methods of various embodiments of the present invention. Or part of the steps.
- the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
- FIG. 8 is a flowchart of a method for transmitting control information according to another embodiment of the present invention. As shown in FIG. 8, the uplink control information is transmitted in a scenario of different duplex mode aggregation and/or inter-base station aggregation.
- the method for transmitting information may specifically include the following steps:
- Step 801 The user equipment receives physical uplink control channel configuration information.
- the user equipment receives the PUCCH configuration information of the physical uplink control channel, and the user equipment may transmit the uplink control information according to the PUCCH configuration information.
- the PUCCH configuration information may include indication information indicating a serving cell that carries the first physical uplink control channel, where the indication information may be a cell index of a serving cell that carries the first physical uplink control channel, where the first physical uplink control channel is carried.
- the serving cell may be a secondary serving cell of the user equipment. If the user equipment is used, the PUCCH is transmitted on only one serving cell, and the indication information of the serving cell of the first physical uplink control channel is carried by the indication, and the serving cell that transmits the uplink control channel can be flexibly configured according to the actual application scenario. Compared with the PUCCH transmission only on the primary serving cell of the user equipment, the transmission performance of the control information of the upper book can be improved, and the data transmission delay is reduced.
- the serving cell that carries the first physical uplink control channel may be configured as the secondary serving cell of the user equipment whose duplex mode is FDD, because the FDD serving cell
- the uplink subframe is always available.
- the uplink control information can be transmitted on more uplink subframes to improve the transmission performance of the uplink control information.
- the RTT of the physical downlink shared channel PDSCH can be reduced (round trip) Time) delay.
- the second physical uplink control channel of the user equipment is a physical uplink control channel that is transmitted on the primary serving cell of the user equipment. If the PUCCH configuration information is configured with the first physical uplink control channel, the user equipment passes the first The physical uplink control channel and the second physical uplink control channel transmit uplink control information, and the PUCCH may not be modified on the primary serving cell of the user equipment, and may not modify the HARQ-ACK timing of each serving cell. It can be applied to the aggregation between the base stations. It should be noted that, if the first physical uplink control channel configuration information is not included in the PUCCH configuration information, the user equipment will only transmit the uplink control information on the primary serving cell.
- the PUCCH configuration information may further include a service indicating that the second physical uplink control channel is carried.
- the indication information of the cell where the indication information may be a cell index of a serving cell that carries the second physical uplink control channel. If the PUCCH configuration information includes indication information indicating a serving cell that carries the second physical uplink control channel, the indication information indicating the serving cell carrying the first physical uplink control channel and the indication indicating the serving cell carrying the second physical uplink control channel.
- the information may be configured, where the user equipment is configured to configure the first physical uplink control channel and the second physical uplink control channel to transmit uplink control information, and the serving cell that carries the first physical uplink control channel and the serving cell that carries the second physical uplink control channel may According to the actual application scenario, the configuration is flexibly configured to improve the transmission performance of the uplink control information, and the HARQ-ACK timing of each serving cell may not be modified, and may be applicable to aggregation between base stations. book
- the PUCCH configuration information may further include indication information indicating a serving cell in the first serving cell set corresponding to the first physical uplink control channel, where the indication information may be a service in the first serving cell set corresponding to the first physical uplink control channel. a cell index of the cell; the PUCCH configuration information may further include indication information indicating a serving cell in the second serving cell set corresponding to the second physical uplink control channel, where the indication information may be a second service corresponding to the second physical uplink control channel The cell index of the serving cell in the set of cells.
- the indication information of the serving cell in the first serving cell set corresponding to the first physical uplink control channel and the second serving cell set corresponding to the second physical uplink control channel are indicated by the indication
- the first physical uplink control channel and the serving cell corresponding to the second physical uplink control channel that is, the serving cell corresponding to the uplink control information transmitted by the first physical uplink control channel
- the serving cell corresponding to the uplink control information transmitted by the second physical uplink control channel may be configured.
- the PUCCH configuration information may further include indication information indicating a format of the first physical uplink control channel, where the format of the first physical uplink control channel may be one of a PUCCH format la, a PUCCH format lb, a channel selection, and a PUCCH format 3;
- the PUCCH configuration information may further include indication information indicating a format of the second physical uplink control channel, where the second physical uplink control channel is The formula may be one of PUCCH format la, PUCCH format lb, channel selection, and PUCCH format 3.
- Step 802 The user equipment determines, according to the physical uplink control channel configuration information, a serving cell that carries the first physical uplink control channel.
- the user equipment determines the serving cell that carries the first physical uplink control channel according to the physical uplink control channel configuration information received in step 801.
- the user equipment may determine, according to the indication information of the serving cell that carries the first physical uplink control channel in the uplink control channel configuration information, the serving cell that carries the first physical uplink control channel, and further may be the control channel according to the physical uplink control channel.
- the cell index of the serving cell that carries the first uplink control channel in the configuration information determines the serving cell that carries the first physical uplink control channel, and the serving cell that carries the first physical uplink control channel is the secondary serving cell of the user equipment.
- the user equipment may further determine, according to the physical uplink control channel configuration information, the serving cell that carries the first physical uplink control channel and the serving cell that carries the second physical uplink control channel, and further may be configured by the user equipment according to the physical uplink control channel configuration information.
- the cell index of the serving cell that carries the first physical uplink control channel determines the serving cell that carries the first physical uplink control channel, and determines the bearer according to the cell index of the serving cell that carries the second physical uplink control channel in the physical uplink control channel configuration information.
- the serving cell of the second physical uplink control channel The beneficial effects are as shown in step 801, and are not described herein again.
- Step 803 The user equipment sends uplink control information on the serving cell that carries the first physical uplink control channel by using the first physical uplink control channel.
- the user equipment sends uplink control information on the serving cell that carries the first physical uplink control channel through the first physical uplink control channel.
- the PUCCH is transmitted only on one serving cell.
- the step may also be that the user equipment is on the serving cell that carries the first physical uplink control channel.
- the first uplink control information is sent by using the first physical uplink control channel
- the user equipment sends the second uplink control information by using the second physical uplink control channel on the primary serving cell.
- the PUCCH may be sent on the user equipment winner cell and a secondary serving cell.
- the user equipment transmits the uplink control on the first physical uplink control channel of the configuration and the second physical uplink control channel that is carried on the primary serving cell. information.
- the beneficial effects are as shown in step 801, and are not described herein again.
- the step 802 is to determine the serving cell that carries the first physical uplink control channel and the serving cell that carries the second physical uplink control channel according to the physical uplink control channel configuration information, the step may be that the user equipment is carrying the first physical uplink.
- the serving cell of the control book channel sends the first uplink control information through the first physical uplink control channel, and sends the second uplink control information on the serving cell that carries the second physical uplink control channel.
- the first uplink control information corresponds to the first serving cell set
- the second uplink control information corresponds to the second serving cell set
- the first serving cell set includes at least one serving cell that does not belong to the second serving cell set.
- the first serving cell set and the second serving cell set may be divided into multiple modes.
- the duplex mode of the serving cell in the first serving cell set may be a frequency division duplex FDD, where the second serving cell set is used.
- the duplex mode of the serving cell may be a time division duplex TDD; or the backhaul link between the serving cells in the first set of serving cells is an ideal backhaul link, and the backhaul chain between the serving cells in the second set of serving cells
- the path is an ideal backhaul link, and the backhaul link between the serving cell in the first serving cell set and the serving cell in the second serving cell set is a non-ideal backhaul link; or the service included in the first serving cell set
- the cell and the serving cell included in the second physical cell set are determined according to physical uplink control channel configuration information.
- the uplink control information UCI in this step may be a hybrid subframe retransmission request HARQ-ACK, channel state information CSI, scheduling request SR, and the like.
- the types of the first uplink control information and the second uplink control information may be the same or different.
- This embodiment provides a method for transmitting uplink control information, which solves the aggregation of different duplex modes. And how to transmit uplink control information in the scenario of aggregation between base stations and/or base stations. If the PUCCH is transmitted on only one serving cell, the indication information of the serving cell carrying the first physical uplink control channel is indicated by the indication, and the serving cell that transmits the uplink control channel can be flexibly configured according to the actual application scenario, and the PUCCH is only in the main device of the user equipment. Compared with the transmission on the serving cell, the transmission performance of the uplink control information can be improved, and the data transmission delay can be reduced.
- the serving cell carrying the first physical uplink control channel may be configured as a secondary service novel area in which the duplex mode of the user equipment is FDD, due to the FDD service.
- the uplink subframes are always available on the cell.
- the uplink control information can be transmitted on more uplink subframes to improve the transmission performance of the uplink control information.
- the RTT of the physical downlink shared channel PDSCH can be reduced. (round trip time) delay.
- the second physical uplink control channel of the user equipment is a physical uplink control channel that is transmitted on the primary serving cell of the user equipment. If the PUCCH configuration information is configured with the first physical uplink control channel, the user equipment passes the first The physical uplink control channel and the second physical uplink control channel transmit uplink control information, and the PUCCH may not be modified on the primary serving cell of the user equipment, and may not modify the HARQ-ACK timing of each serving cell. It can be applied to the aggregation between the base stations.
- the first physical uplink control channel and the second physical uplink control channel transmission may be configured to the user equipment by indicating the indication information of the serving cell that carries the first physical uplink control channel and the indication information indicating the serving cell that carries the second physical uplink control channel.
- the uplink control information, and the serving cell that carries the first physical uplink control channel and the serving cell that carries the second physical uplink control channel can be flexibly configured according to the actual application scenario, thereby improving the transmission performance of the uplink control information, and The HARQ-ACK timing of the serving cell, and can be applied to aggregation between base stations.
- FIG. 9 is a flowchart of a method for transmitting control information according to another embodiment of the present invention. As shown in FIG. 9, the uplink control information transmission in a scenario of different duplex mode aggregation and/or inter-base station aggregation is performed.
- the method for transmitting information may specifically include the following steps:
- Step 901 The base station sends physical uplink control channel configuration information to the user equipment, where the physical uplink control channel configuration information includes indication information indicating a serving cell that carries the first physical uplink control channel, where the serving cell is a service corresponding to the user Community.
- the base station sends physical uplink control channel configuration information to the user equipment, so that the user equipment can send uplink control information according to the physical uplink control channel configuration information.
- the indication information of the serving cell that carries the first physical uplink control channel may be a cell index of the serving cell that carries the first physical uplink control channel, where the serving cell that carries the first physical uplink control channel is a secondary of the user equipment. Service area.
- the physical uplink control channel configuration information may further include indication information indicating a serving cell that carries the first physical uplink control channel, and indication information indicating a serving cell that carries the second physical uplink control channel, where the service that carries the first physical uplink control channel
- the cell and the serving cell carrying the second physical uplink control channel are all serving cells corresponding to the user equipment.
- the indication information of the serving cell that carries the first physical uplink control channel may be the cell index of the serving cell that carries the first physical uplink control channel
- the indication information of the serving cell that carries the second physical uplink control channel may be the bearer The cell index of the serving cell of the two physical uplink control channels.
- PUCCH configuration information are as shown in step 801 of the foregoing embodiment, and are not described herein again.
- Step 902 The base station receives uplink control information sent by the user equipment on the first physical uplink control channel on the serving cell that carries the first physical uplink control channel.
- the base station sends uplink control information through the first physical uplink control channel on the serving cell that carries the first physical uplink control channel.
- the PUCCH is transmitted only on one serving cell.
- the step may be that the base station receives the first uplink control information sent by the user equipment on the first physical uplink control channel on the serving cell that carries the first physical uplink control channel, and is in the primary serving cell of the user equipment. And receiving, by the second physical uplink control channel, second uplink control information sent by the user equipment.
- the base station may receive the first uplink control information sent by the user equipment on the first physical uplink control channel, and the service novel that carries the second physical uplink control channel, on the serving cell that carries the first physical uplink control channel.
- the second uplink control information sent by the user equipment is received on the second physical uplink control channel.
- the first uplink control information corresponds to the first serving cell set of the user equipment
- the second uplink control information corresponds to the second serving cell set of the user equipment
- the first serving cell set includes at least one A serving cell belonging to the second set of serving cells.
- This embodiment provides a method for transmitting uplink control information, which solves the problem of how uplink control information is transmitted in a scenario of aggregation in different duplex modes and/or aggregation between base stations. If the PUCCH is transmitted on only one serving cell, the indication information of the serving cell carrying the first physical uplink control channel is indicated by the indication, and the serving cell that transmits the uplink control channel can be flexibly configured according to the actual application scenario, and the PUCCH is only in the main device of the user equipment. Compared with the transmission on the serving cell, the transmission performance of the uplink control information can be improved, and the data transmission delay can be reduced.
- the serving cell carrying the first physical uplink control channel may be configured as the secondary serving cell of the user equipment in the duplex mode of FDD, because the FDD serving cell
- the uplink subframe is always available.
- the uplink control information can be transmitted on more uplink subframes to improve the transmission performance of the uplink control information, and on the other hand, the RTT of the physical downlink shared channel PDSCH can be reduced (round trip) Time) delay.
- the physical uplink control channel is a physical uplink control channel that is transmitted on the primary serving cell of the user equipment. If the PUCCH configuration information is configured with the first physical uplink control channel, the user equipment will pass the first physical uplink control channel and The second physical uplink control channel transmits the uplink control information, and the PUCCH may not be modified on the primary serving cell of the user equipment, and may not modify the HARQ-ACK timing of each serving cell, and may be applied to the base station.
- the user equipment will only transmit uplink control information on the primary serving cell.
- the first physical uplink control channel and the second physical uplink control channel may be configured to the user equipment by indicating the indication information of the serving cell that carries the first physical uplink control channel and the indication information indicating the serving cell that carries the second physical uplink control channel.
- the uplink control information is transmitted, and the serving cell that carries the first physical uplink control channel and the serving cell that carries the second physical uplink control channel can be flexibly configured according to the actual application scenario, thereby improving the transmission performance of the uplink control information, and may not be modified.
- the HARQ-ACK timing of each serving cell and can be applied to aggregation between base stations.
- FIG. 10 is a schematic structural diagram of a user equipment according to another embodiment of the present invention.
- the user equipment includes: a receiving module 81, a determining module 82, and a sending module 83.
- the receiving module 81 is configured to receive physical uplink control channel configuration information
- the determining module 82 is configured to determine, according to the physical uplink control channel configuration information, a serving cell that carries the first physical uplink control channel;
- the sending module 83 is configured to send uplink control information by using the first physical uplink control channel on the serving cell that carries the first physical uplink control channel.
- the uplink control channel configuration information includes a cell index of a serving cell that carries a first physical uplink control channel, where the determining module 82 is specifically configured to be used according to the physical uplink control channel configuration information.
- the cell index of the serving cell carrying the first uplink control channel determines a serving cell that carries the first physical uplink control channel.
- the serving cell that carries the first physical uplink control channel is a secondary serving cell of the user equipment.
- the sending module 83 is specifically configured to:
- the determining module 82 is specifically configured to:
- the sending module 83 is specifically configured to:
- the physical uplink control channel configuration information includes a cell index of a serving cell that carries a first physical uplink control channel, and a cell index of a serving cell that carries a second physical uplink control channel, where the determining module is 82 specifically includes:
- the first determining unit 821 is configured to determine, according to the cell index of the serving cell that carries the first physical uplink control channel in the physical uplink control channel configuration information, a serving cell that carries the first physical uplink control channel;
- the second determining unit 822 is configured to determine, according to the cell index of the serving cell that carries the second physical uplink control channel in the physical uplink control channel configuration information, the serving cell that carries the second physical uplink control channel.
- the first uplink control information corresponds to a first serving cell set
- the second uplink control information corresponds to a second serving cell set
- the first serving cell set includes at least one does not belong to a serving cell of the second serving cell set.
- the duplex mode of the serving cell in the first set of serving cells is frequency division duplex FDD
- the duplex mode of the serving cell in the second set of serving cells is time division duplex TDD; or
- the backhaul link between the serving cells in the first set of serving cells is an ideal backhaul link
- the backhaul link between the serving cells in the second set of serving cells is an ideal backhaul link
- the first serving cell The backhaul link between the serving cell in the set and the serving cell in the second set of serving cells is a non-ideal backhaul link.
- the determining module 82 is further configured to determine, according to the physical uplink control channel configuration information, that the serving cell and the second physical cell set included in the first serving small book area set include Service area.
- the physical uplink control channel configuration information includes a cell index of a serving cell in a first serving cell set corresponding to the first physical uplink control channel, and a corresponding corresponding to the second physical uplink control channel.
- the cell index of the serving cell in the second set of serving cells, the determining module further includes:
- the third determining unit 823 is configured to determine, according to the cell index of the serving cell in the first serving cell set corresponding to the first physical uplink control channel in the physical uplink control channel configuration information, that the first serving cell set includes Service area;
- the fourth determining unit 824 is configured to determine, according to the cell index of the serving cell in the second serving cell set corresponding to the second physical uplink control channel in the physical uplink control channel configuration information, that the second serving cell set includes Service area.
- FIG. 11 is a schematic structural diagram of a base station according to another embodiment of the present invention. As shown in FIG. 11, the base station includes:
- the sending module 91 is configured to send physical uplink control channel configuration information to the user equipment, where the physical uplink control channel configuration information includes a serving cell that indicates that the first physical uplink control channel is carried.
- the indication information, the serving cell is a serving cell corresponding to the user equipment, and the receiving module 92 is configured to receive, on the first physical uplink control channel, the serving cell that carries the first physical uplink control channel.
- the indication information indicating the serving cell that carries the first physical uplink control channel is a cell index of the serving cell that carries the first physical uplink control channel.
- the serving cell that carries the first physical uplink control channel is a secondary serving cell of the user equipment.
- the receiving module 92 is specifically configured to:
- the physical uplink control channel configuration information includes indication information indicating a serving cell that carries the first physical uplink control channel, where the serving cell that carries the first physical uplink control channel is the user equipment.
- Corresponding service cells including:
- the physical uplink control channel configuration information includes indication information indicating a serving cell that carries the first physical uplink control channel, and indication information indicating a serving cell that carries the second physical uplink control channel, where the service that carries the first physical uplink control channel
- the cell and the serving cell carrying the second physical uplink control channel are all serving cells corresponding to the user equipment;
- the receiving module 92 is specifically configured to:
- the first physical uplink control channel Receiving, by the first physical uplink control channel, the first uplink control information sent by the user equipment on the serving cell that carries the first physical uplink control channel, where the serving cell that carries the second physical uplink control channel The second uplink control information sent by the user equipment is received on the second physical uplink control channel.
- the indicating the service that carries the first physical uplink control channel The indication information of the cell is the cell index of the serving cell that carries the first physical uplink control channel, and the indication information indicating the serving cell that carries the second physical uplink control channel is the cell index of the serving cell that carries the second physical uplink control channel.
- the first uplink control information corresponds to a first serving cell set of the user equipment
- the second uplink control information corresponds to a second serving cell set of the user equipment
- the The first set of serving cells includes at least one serving cell that does not belong to the second set of serving cells.
- the duplex mode of the serving cell in the first set of serving cells is frequency division duplex FDD
- the duplex mode of the serving cell in the second set of serving cell books is time-division double TDD
- the backhaul link between the serving cells in the first set of serving cells is an ideal backhaul link
- the backhaul link between the serving cells in the second set of serving cells is an ideal backhaul link
- the first serving cell The backhaul link between the serving cell in the set and the serving cell in the second set of serving cells is a non-ideal backhaul link.
- the physical uplink control channel configuration information includes a cell index of a serving cell in a first serving cell set corresponding to the first physical uplink control channel, and a corresponding corresponding to the second physical uplink control channel.
- the cell index of the serving cell in the second set of serving cells includes a cell index of a serving cell in a first serving cell set corresponding to the first physical uplink control channel, and a corresponding corresponding to the second physical uplink control channel.
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Abstract
Description
Claims
Priority Applications (8)
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PCT/CN2013/084757 WO2015042973A1 (zh) | 2013-09-30 | 2013-09-30 | 控制信息的传输方法、用户设备和基站 |
CN201380002134.0A CN104685946B (zh) | 2013-09-30 | 2013-09-30 | 控制信息的传输方法、用户设备和基站 |
KR1020167010832A KR101855219B1 (ko) | 2013-09-30 | 2013-09-30 | 제어 정보 송신 방법, 사용자 장비 및 기지국 |
EP13894249.5A EP3043609A4 (en) | 2013-09-30 | 2013-09-30 | METHOD FOR TRANSMITTING CONTROL INFORMATION, USER EQUIPMENT, AND BASE STATION |
JP2016518729A JP2016532350A (ja) | 2013-09-30 | 2013-09-30 | 制御情報送信方法、ユーザ機器、および基地局 |
CA2925697A CA2925697C (en) | 2013-09-30 | 2013-09-30 | Control information transmission method, user equipment, and base station |
US15/084,122 US9998259B2 (en) | 2013-09-30 | 2016-03-29 | Control information transmission method, user equipment, and base station |
US15/974,938 US10623150B2 (en) | 2013-09-30 | 2018-05-09 | Control information transmission method, user equipment, and base station |
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PCT/CN2013/084757 WO2015042973A1 (zh) | 2013-09-30 | 2013-09-30 | 控制信息的传输方法、用户设备和基站 |
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US15/084,122 Continuation US9998259B2 (en) | 2013-09-30 | 2016-03-29 | Control information transmission method, user equipment, and base station |
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EP (1) | EP3043609A4 (zh) |
JP (1) | JP2016532350A (zh) |
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CN (1) | CN104685946B (zh) |
CA (1) | CA2925697C (zh) |
WO (1) | WO2015042973A1 (zh) |
Cited By (1)
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JPWO2015068602A1 (ja) * | 2013-11-08 | 2017-03-09 | シャープ株式会社 | 端末装置 |
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WO2017070824A1 (zh) * | 2015-10-26 | 2017-05-04 | 富士通株式会社 | 缩短时延的上行数据传输方法、装置以及通信系统 |
EP4412369A3 (en) | 2016-04-12 | 2024-09-04 | Motorola Mobility LLC | Scheduling of transmission time intervals |
KR102455240B1 (ko) * | 2016-08-18 | 2022-10-17 | 삼성전자 주식회사 | 무선 통신 시스템에서 상향링크 제어 정보를 송수신하는 방법 및 장치 |
EP3566376B1 (en) * | 2017-01-09 | 2020-10-21 | Motorola Mobility LLC | Method and apparatus for a physical uplink control channel in resource blocks |
CN110392997B (zh) * | 2017-09-08 | 2023-04-18 | Lg电子株式会社 | 在无线通信系统中发送和接收无线信号的方法和设备 |
US10715283B2 (en) * | 2017-10-02 | 2020-07-14 | Kt Corporation | Apparatus and method of transmitting and receiving HARQ ACK/NACK information for new radio |
US10999039B2 (en) * | 2018-05-20 | 2021-05-04 | Qualcomm Incorporated | Providing acknowledgement/negative acknowledgement (ACK/NACK) feedback for downlink semi-persistent scheduling (SPS) with sub-slot periodicity |
KR20200127820A (ko) | 2019-05-02 | 2020-11-11 | 삼성전자주식회사 | 무선 통신 시스템에서 이중 접속을 위한 단말의 상향 채널 전송 자원 결정 방법 및 장치 |
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- 2013-09-30 KR KR1020167010832A patent/KR101855219B1/ko active IP Right Grant
- 2013-09-30 CA CA2925697A patent/CA2925697C/en active Active
- 2013-09-30 CN CN201380002134.0A patent/CN104685946B/zh not_active Expired - Fee Related
- 2013-09-30 JP JP2016518729A patent/JP2016532350A/ja active Pending
- 2013-09-30 EP EP13894249.5A patent/EP3043609A4/en not_active Withdrawn
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2016
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CA2925697A1 (en) | 2015-04-02 |
KR101855219B1 (ko) | 2018-05-08 |
CN104685946B (zh) | 2018-08-21 |
EP3043609A1 (en) | 2016-07-13 |
CN104685946A (zh) | 2015-06-03 |
EP3043609A4 (en) | 2016-10-19 |
JP2016532350A (ja) | 2016-10-13 |
US20180254862A1 (en) | 2018-09-06 |
US20160211950A1 (en) | 2016-07-21 |
KR20160062090A (ko) | 2016-06-01 |
US9998259B2 (en) | 2018-06-12 |
US10623150B2 (en) | 2020-04-14 |
CA2925697C (en) | 2020-04-21 |
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