WO2016070790A1 - 一种harq确认信息的反馈方法及装置 - Google Patents

一种harq确认信息的反馈方法及装置 Download PDF

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Publication number
WO2016070790A1
WO2016070790A1 PCT/CN2015/093689 CN2015093689W WO2016070790A1 WO 2016070790 A1 WO2016070790 A1 WO 2016070790A1 CN 2015093689 W CN2015093689 W CN 2015093689W WO 2016070790 A1 WO2016070790 A1 WO 2016070790A1
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terminal
harq
acknowledgment information
dci
bits
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PCT/CN2015/093689
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English (en)
French (fr)
Inventor
邢艳萍
沈祖康
潘学明
徐伟杰
高雪娟
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电信科学技术研究院
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Publication of WO2016070790A1 publication Critical patent/WO2016070790A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method and apparatus for feeding back Hybrid Automatic Repeat Request (HARQ) acknowledgement information.
  • HARQ Hybrid Automatic Repeat Request
  • Downlink Control Information is used to transmit scheduling information and uplink power control information of downlink and uplink data transmissions.
  • DCI is divided into different formats (DCI Format) depending on the purpose and content of the information.
  • a DCI can be carried by a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH).
  • PDCH Physical Downlink Control Channel
  • EPDCCH Enhanced Physical Downlink Control Channel
  • the Long Term Evolution (LTE) system adopts the HARQ mechanism such as synchronous multi-process stop, and the retransmission must occur at a predefined time.
  • the LTE system supports synchronous non-adaptive HARQ retransmission and synchronous adaptive HARQ retransmission.
  • a Physical Hybrid ARQ Indicator Channel PHICH is used to carry HARQ response (ACK/NACK) information for an uplink shared channel (UL-SCH) data packet.
  • the ACK/NACK information is represented by 1-bit signaling, the information length is very short, and the transmission performance of the ACK/NACK is ensured by means of repetition coding, low-order modulation (such as BPSK), orthogonal extension, scrambling, and time-frequency diversity mapping.
  • MTC Machine Type Communication
  • the present application provides a feedback method and apparatus for hybrid automatic repeat request HARQ confirmation information, which is used to implement feedback of HARQ confirmation information.
  • the embodiment of the present application provides a feedback method for hybrid automatic repeat request HARQ confirmation information, including:
  • the network device determines HARQ acknowledgement information of the uplink data channel that needs to be fed back to the terminal;
  • the network device sends downlink control information DCI to the terminal, where the DCI carries HARQ acknowledgement information of the uplink data channel.
  • the DCI carries one or more HARQ confirmation information.
  • the DCI carrying the HARQ acknowledgment information is scrambled using a radio network temporary identifier RNTI dedicated to the HARQ acknowledgment information feedback.
  • the network device further includes a process of encoding the HARQ confirmation information carried in the DCI before the DCI is sent to the terminal, where the coding process includes:
  • one of the DCIs carries HARQ acknowledgment information of an uplink data channel in one or more subbands
  • the HARQ acknowledgment information of the uplink data channel in the one or more subbands is a bit sequence, the bit sequence The bit in the bit has a corresponding relationship with the PRB allocated to the terminal, or the bit in the bit sequence has a corresponding relationship with the PRB allocated to the terminal and the cyclically shifted DMRS cyclic shift of the demodulation reference symbol
  • the subband refers to the system a set of physical resource blocks PRB within the bandwidth
  • the network device sends the DCI, determining, according to the correspondence, a location of a bit corresponding to the HARQ acknowledgement information that needs to be fed back to the terminal in the bit sequence.
  • one DCI carries the HARQ acknowledgment information of the uplink data channel in one sub-band
  • the HARQ acknowledgment information carried is N bits, one bit corresponds to HARQ acknowledgment information of one PRB, and N is PRB in one sub-band Quantity
  • i represents the location index of the HARQ acknowledgment information of the terminal in the N bits.
  • the number of the PRB assigned to the terminal in the range of 0, 1, ..., N-1.
  • one DCI carries the HARQ acknowledgment information of the uplink data channel in one sub-band, and the HARQ acknowledgment information carried is N ⁇ D bits, N is the number of PRBs in one sub-band, and D is DMRS cyclic shift possible The total number of values;
  • n DMRS is the number of the DMRS cyclic shift, which ranges from 0, 1, ..., D-1.
  • one of the DCIs carries the HARQ acknowledgment information of the uplink data channel in the M subbands, and the HARQ acknowledgment information carried is N ⁇ M bits, where N is the number of PRBs in one subband;
  • i is the position index of the HARQ acknowledgment information of the terminal in the N ⁇ M bits
  • m is a subband number, and the value ranges from 0, 1, ..., M-1, The number of the PRB assigned to the terminal, in the range of 0, 1, ..., N-1.
  • one of the DCIs carries the HARQ acknowledgment information of the uplink data channel in the M subbands, and the HARQ acknowledgment information carried is N ⁇ D ⁇ M bits, where N is the number of PRBs in one subband, and D is The total number of possible values of DMRS cyclic shift;
  • i is the position index of the HARQ acknowledgment information of the terminal in the N ⁇ D ⁇ M bits
  • m is a subband number, and the value ranges from 0, 1, ..., M-1
  • the number of the PRB assigned to the terminal, in the range of 0, 1, ..., N-1, n DMRS is the number of the DMRS cyclic shift, which ranges from 0, 1, ..., D-1.
  • the DCI is transmitted in a common search space.
  • the DCI is transmitted through a physical downlink control channel, and the physical downlink control channel is transmitted in a data region.
  • the terminal acquires HARQ confirmation information of an uplink data channel carried in the DCI.
  • the DCI carries one or more HARQ confirmation information.
  • the terminal uses the RNTI dedicated to the HARQ acknowledgment information feedback to descramble the HARQ acknowledgment information carried in the DCI.
  • the terminal acquires HARQ confirmation information of the uplink data channel carried in the DCI, including:
  • the terminal descrambles the decoded HARQ acknowledgement information using an RNTI dedicated to the HARQ acknowledgment information feedback.
  • one of the DCIs carries HARQ acknowledgment information of an uplink data channel in one or more subbands
  • the HARQ acknowledgment information of the uplink data channel in the one or more subbands is a bit sequence, the bit sequence The bit in the bit has a corresponding relationship with the PRB allocated to the terminal, or the bit in the bit sequence has a corresponding relationship with the PRB allocated to the terminal and the cyclically shifted DMRS cyclic shift of the demodulation reference symbol
  • the subband refers to the system a set of physical resource blocks PRB within the bandwidth
  • one DCI carries the HARQ acknowledgment information of the uplink data channel in one sub-band
  • the HARQ acknowledgment information carried is N bits, one bit corresponds to HARQ acknowledgment information of one PRB, and N is PRB in one sub-band Quantity
  • i represents the location index of the HARQ acknowledgment information of the terminal in the N bits.
  • the number of the PRB assigned to the terminal in the range of 0, 1, ..., N-1.
  • one DCI carries the HARQ acknowledgment information of the uplink data channel in one sub-band, and the HARQ acknowledgment information carried is N ⁇ D bits, N is the number of PRBs in one sub-band, and D is DMRS cyclic shift possible The total number of values;
  • n DMRS is the number of the DMRS cyclic shift, which ranges from 0, 1, ..., D-1.
  • one of the DCIs carries the HARQ acknowledgment information of the uplink data channel in the M subbands, and the HARQ acknowledgment information carried is N ⁇ M bits, where N is the number of PRBs in one subband;
  • i is the position index of the HARQ acknowledgment information of the terminal in the N ⁇ M bits
  • m is a subband number, and the value ranges from 0, 1, ..., M-1, The number of the PRB assigned to the terminal, in the range of 0, 1, ..., N-1.
  • one of the DCIs carries the HARQ acknowledgment information of the uplink data channel in the M subbands, and the HARQ acknowledgment information carried is N ⁇ D ⁇ M bits, where N is the number of PRBs in one subband, and D is The total number of possible values of DMRS cyclic shift;
  • i is the position index of the HARQ acknowledgment information of the terminal in the N ⁇ D ⁇ M bits
  • m is a subband number, and the value ranges from 0, 1, ..., M-1
  • the number of the PRB assigned to the terminal, in the range of 0, 1, ..., N-1, n DMRS is the number of the DMRS cyclic shift, which ranges from 0, 1, ..., D-1.
  • the DCI is transmitted in a common search space.
  • the DCI is transmitted through a physical downlink control channel, and the physical downlink control channel is transmitted in a data region.
  • a processing module configured to determine HARQ confirmation information of an uplink data channel that needs to be fed back to the terminal
  • a sending module configured to send downlink control information DCI to the terminal, where the DCI carries HARQ acknowledgement information of the uplink data channel.
  • the DCI carries one or more HARQ confirmation information.
  • the DCI carrying the HARQ acknowledgment information uses an RNTI dedicated to the HARQ acknowledgment information feedback. Perform scrambling.
  • the processing module is further configured to: add a cyclic redundancy check CRC code to the HARQ acknowledgement information, and use an RNTI dedicated to the HARQ acknowledgement information feedback before transmitting the DCI to the terminal.
  • the CRC code is scrambled to obtain the scrambled HARQ acknowledgment information; the scrambled HARQ acknowledgment information is convolutionally encoded; and the convolutionally encoded HARQ acknowledgment information is rate matched.
  • one of the DCIs carries HARQ acknowledgment information of an uplink data channel in one or more subbands
  • the HARQ acknowledgment information of the uplink data channel in the one or more subbands is a bit sequence, the bit sequence
  • the bit in the bit has a corresponding relationship with the PRB allocated to the terminal, or the bit in the bit sequence has a corresponding relationship with the PRB allocated to the terminal and the cyclically shifted DMRS cyclic shift of the demodulation reference symbol
  • the subband refers to the system a physical resource block PRB set in the bandwidth
  • the processing module is specifically configured to: determine, according to the correspondence, a location of a bit corresponding to the HARQ acknowledgement information that needs to be fed back to the terminal in the bit sequence.
  • one DCI carries the HARQ acknowledgment information of the uplink data channel in one sub-band
  • the HARQ acknowledgment information carried is N bits
  • one bit corresponds to HARQ acknowledgment information of one PRB
  • N is PRB in one sub-band
  • the processing module is specifically configured to: determine, according to the following formula, a position of a bit corresponding to the HARQ confirmation information that needs to be fed back to the terminal in the N bits:
  • i represents the location index of the HARQ acknowledgment information of the terminal in the N bits.
  • the number of the PRB assigned to the terminal in the range of 0, 1, ..., N-1.
  • one DCI carries the HARQ acknowledgment information of the uplink data channel in one sub-band
  • the HARQ acknowledgment information carried is N ⁇ D bits
  • N is the number of PRBs in one sub-band
  • D is the demodulation reference symbol.
  • the total number of possible values of the cyclic shift DMRS cyclic shift; the processing module is specifically configured to: determine, according to the following formula, a position of a bit corresponding to the HARQ acknowledgement information that needs to be fed back to the terminal in the N ⁇ D bits:
  • n DMRS is the number of the DMRS cyclic shift, which ranges from 0, 1, ..., D-1.
  • one of the DCIs carrying the HARQ acknowledgment information of the uplink data channel in the M subbands, the HARQ acknowledgment information carried is N ⁇ M bits, and N is the number of PRBs in one subband; the processing module Specifically, the location of the bit corresponding to the HARQ confirmation information that needs to be fed back to the terminal in the N ⁇ M bits is determined according to the following formula:
  • i is the position index of the HARQ acknowledgment information of the terminal in the N ⁇ M bits
  • m is a subband number, and the value ranges from 0, 1, ..., M-1, The number of the PRB assigned to the terminal, in the range of 0, 1, ..., N-1.
  • one of the DCIs carries the HARQ acknowledgment information of the uplink data channel in the M subbands, and the HARQ acknowledgment information carried is N ⁇ D ⁇ M bits, where N is the number of PRBs in one subband, and D is The total number of possible values of the DMRS cyclic shift; the processing module is specifically configured to: determine, according to the following formula, a position of a bit corresponding to the HARQ acknowledgement information that needs to be fed back to the terminal in the N ⁇ D ⁇ M bits:
  • i is the position index of the HARQ acknowledgment information of the terminal in the N ⁇ D ⁇ M bits
  • m is a subband number, and the value ranges from 0, 1, ..., M-1
  • the number of the PRB assigned to the terminal, in the range of 0, 1, ..., N-1, n DMRS is the number of the DMRS cyclic shift, which ranges from 0, 1, ..., D-1.
  • the DCI is transmitted in a common search space.
  • the DCI is transmitted through a physical downlink control channel, and the physical downlink control channel is transmitted in a data region.
  • a receiving module configured to receive downlink control information DCI sent by the network device
  • the processing module is configured to obtain HARQ confirmation information of an uplink data channel carried in the DCI.
  • the DCI carries one or more HARQ confirmation information.
  • the processing module uses the RNTI dedicated to the HARQ acknowledgment information feedback to descramble the HARQ acknowledgment information carried in the DCI. .
  • the processing module is further configured to: perform de-rate matching on the received data to obtain a de-rate-matched HARQ acknowledgment information; decode the de-rate matched HARQ acknowledgment information; and use the HARQ-specific acknowledgment information;
  • the RNTI confirming the information feedback descrambles the decoded HARQ acknowledgement information.
  • one of the DCIs carries HARQ acknowledgment information of an uplink data channel in one or more subbands
  • the HARQ acknowledgment information of the uplink data channel in the one or more subbands is a bit sequence, the bit sequence
  • the bit in the bit has a corresponding relationship with the PRB allocated to the terminal, or the bit in the bit sequence has a corresponding relationship with the PRB allocated to the terminal and the cyclically shifted DMRS cyclic shift of the demodulation reference symbol
  • the subband refers to the system Within bandwidth a physical resource block PRB set
  • the processing module is specifically configured to: determine, according to the correspondence, a position of a bit corresponding to the HARQ confirmation information of the terminal in the bit sequence.
  • one DCI carries the HARQ acknowledgment information of the uplink data channel in one sub-band
  • the HARQ acknowledgment information carried is N bits
  • one bit corresponds to HARQ acknowledgment information of one PRB
  • N is PRB in one sub-band
  • the processing module is specifically configured to: determine, according to the following formula, a position of a bit corresponding to the HARQ confirmation information of the terminal in the N bits:
  • i represents the location index of the HARQ acknowledgment information of the terminal in the N bits.
  • the number of the PRB assigned to the terminal in the range of 0, 1, ..., N-1.
  • one DCI carries the HARQ acknowledgment information of the uplink data channel in one sub-band, and the HARQ acknowledgment information carried is N ⁇ D bits, N is the number of PRBs in one sub-band, and D is DMRS cyclic shift possible
  • the processing module is specifically configured to: determine, according to the following formula, a position of a bit corresponding to the HARQ confirmation information of the terminal in the N ⁇ D bits:
  • n DMRS is the number of the DMRS cyclic shift, which ranges from 0, 1, ..., D-1.
  • one of the DCIs carrying the HARQ acknowledgment information of the uplink data channel in the M subbands, the HARQ acknowledgment information carried is N ⁇ M bits, and N is the number of PRBs in one subband; the processing module Specifically, the location of the bit corresponding to the HARQ confirmation information of the terminal in the N ⁇ M bits is determined according to the following formula:
  • i is the position index of the HARQ acknowledgment information of the terminal in the N ⁇ M bits
  • m is a subband number, and the value ranges from 0, 1, ..., M-1, The number of the PRB assigned to the terminal, in the range of 0, 1, ..., N-1.
  • one of the DCIs carries the HARQ acknowledgment information of the uplink data channel in the M subbands, and the HARQ acknowledgment information carried is N ⁇ D ⁇ M bits, where N is the number of PRBs in one subband, and D is The total number of possible values of the DMRS cyclic shift; the processing module is specifically configured to: determine, according to the following formula, a position of a bit corresponding to the HARQ confirmation information of the terminal in the N ⁇ D ⁇ M bits:
  • i is the position index of the HARQ acknowledgment information of the terminal in the N ⁇ D ⁇ M bits
  • m is a subband number, and the value ranges from 0, 1, ..., M-1
  • the number of the PRB assigned to the terminal, in the range of 0, 1, ..., N-1, n DMRS is the number of the DMRS cyclic shift, which ranges from 0, 1, ..., D-1.
  • the DCI is transmitted in a common search space.
  • the DCI is transmitted through a physical downlink control channel, and the physical downlink control channel is transmitted in a data region.
  • the network device determines the HARQ acknowledgment information of the uplink data channel that needs to be fed back to the terminal; the network device sends the DCI to the terminal, where the DCI carries the HARQ acknowledgment information of the uplink data channel.
  • a new DCI format is defined, and the HARQ confirmation information is carried in the DCI, thereby implementing feedback of the HARQ confirmation information.
  • FIG. 1 is a schematic flowchart of a method for feeding back HARQ confirmation information according to Embodiment 1 of the present application;
  • FIG. 2 is a schematic diagram of a coding process of HARQ confirmation information in an embodiment of the present application
  • FIG. 3 is a schematic flowchart of a method for feeding back HARQ confirmation information according to Embodiment 2 of the present application;
  • FIG. 4 is a schematic diagram of resource allocation according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a base station according to Embodiment 3 of the present application.
  • FIG. 6 is a schematic diagram of a terminal according to Embodiment 4 of the present application.
  • FIG. 7 is a schematic diagram of a base station according to Embodiment 5 of the present application.
  • FIG. 8 is a schematic diagram of a terminal according to Embodiment 6 of the present application.
  • FIG. 1 is a schematic flowchart of a method for feeding back HARQ confirmation information according to Embodiment 1 of the present application, which includes the following steps 101 to 102:
  • Step 101 The network device determines HARQ confirmation information of an uplink data channel that needs to be fed back to the terminal.
  • Step 102 The network device sends a DCI to the terminal, where the DCI carries the uplink data channel. HARQ confirmation information.
  • the DCI described in the foregoing process is the DCI newly defined in the embodiment of the present application, and the DCI is used to carry the feedback HARQ acknowledgement information (including HARQ ACK and/or HARQ NACK).
  • one or more HARQ confirmation information may be carried in the DCI. If the DCI carries multiple HARQ acknowledgment information, the multiple HARQ acknowledgment information may belong to one terminal or multiple terminals.
  • one of the DCIs may carry HARQ acknowledgment information of an uplink data channel in one or more subbands, where the subband refers to a physical resource block (PRB) set within a system bandwidth.
  • the HARQ acknowledgment information of the uplink data channel in the one or more subbands is a bit sequence, the bits in the bit sequence have a correspondence relationship with the PRB allocated to the terminal, or the bits in the bit sequence are allocated to the terminal There is a correspondence between the PRB and the Demodulation Reference Signal (DMRS) cyclic shift.
  • DMRS Demodulation Reference Signal
  • the following takes the three scenarios as an example to describe the location of the bit corresponding to the HARQ acknowledgment information that needs to be fed back to the terminal in the HARQ acknowledgment information bit sequence.
  • a HARI acknowledgment information carrying an uplink data channel in a sub-band the HARQ acknowledgment information carried is N bits, one bit corresponds to HARQ acknowledgment information of one PRB, and N is the number of PRBs in one sub-band.
  • i represents the location index of the HARQ acknowledgment information of the terminal in the N bits.
  • the number of the PRB assigned to the terminal in the range of 0, 1, ..., N-1.
  • a HARI acknowledgment information carrying an uplink data channel in a sub-band is N ⁇ D bits, N is the number of PRBs in one sub-band, and D is the total number of possible DMRS cyclic shift values. .
  • n DMRS is the number of the DMRS cyclic shift, which ranges from 0, 1, ..., D-1.
  • One of the DCIs carrying the HARQ acknowledgment information of the uplink data channel in the M subbands carries the HARQ acknowledgment information as N ⁇ M bits, where N is the number of PRBs in one subband.
  • i is the position index of the HARQ acknowledgment information of the terminal in the N ⁇ M bits
  • m is a subband number, and the value ranges from 0, 1, ..., M-1, The number of the PRB assigned to the terminal, in the range of 0, 1, ..., N-1.
  • One of the DCIs carrying the HARQ acknowledgment information of the uplink data channel in the M subbands, the HARQ acknowledgment information carried is N ⁇ D ⁇ M bits, N is the number of PRBs in one subband, and D is DMRS cyclic shift possible The total number of values;
  • i is the position index of the HARQ acknowledgment information of the terminal in the N ⁇ D ⁇ M bits
  • m is a subband number, and the value ranges from 0, 1, ..., M-1
  • the number of the PRB assigned to the terminal, in the range of 0, 1, ..., N-1, n DMRS is the number of the DMRS cyclic shift, which ranges from 0, 1, ..., D-1.
  • the HARQ acknowledgment information carried in the DCI can use feedback specific to the HARQ acknowledgment information.
  • the Radio Network Temporary Identifier (RNTI) is scrambled.
  • the RNTI may be pre-configured by the network side or pre-agreed so that the multiple terminals can use the RNTI to descramble the received DCI or HARQ acknowledgement information.
  • the method further includes the process of encoding the HARQ confirmation information carried in the DCI.
  • the process of encoding may include:
  • the HARQ acknowledgment information feedback is scrambled with the CRC code to obtain the scrambled HARQ acknowledgment information; then, the scrambled HARQ acknowledgment information is convolutionally encoded; after convolutional coding
  • CRC Cyclical Redundancy Check
  • FIG. 2 shows an encoding process for HARQ acknowledgment information carried in the DCI.
  • a DCI carries multiple HARQ acknowledgment information, and each HARQ acknowledgment information is represented by 1 bit, and can be expressed, for example, as a bit sequence a 0 , a 1 , . . . , a A-1 , where A is the number of HARQ acknowledgment information.
  • the RNTI dedicated to the terminal and the CRC may be used for scrambling.
  • the DCI is transmitted in a common search space.
  • the DCI may be transmitted through a physical downlink control channel, and the physical downlink control channel may be transmitted in a data area, and the physical downlink control channel may support a common search space.
  • the DCI in the embodiment of the present application can be transmitted through a physical downlink channel.
  • the uplink and downlink of the low-cost MTC UE in the LTE system only support the 1.4 MHz radio frequency bandwidth
  • the original PDCCH and PHICH channels continue to The control region sends
  • the MTC UE cannot receive the PDCCH and the PHICH, where the PHICH is used to carry the HARQ acknowledgement information, and the PDCCH is used to carry the DCI. Therefore, the physical downlink control channel needs to be sent in the data area to carry information carried by the PDCCH and the PHICH of the control region, and the physical downlink control channel may be referred to as an M-PDCCH.
  • the M-PDCCH and the EPDCCH and the Physical Downlink Shared Channel (PDSCH) multiplex the data region by frequency division.
  • the DCI for carrying the HARQ acknowledgment information in the embodiment of the present application may be sent by using the M-PDCCH.
  • the network device determines the HARQ acknowledgment information of the uplink data channel that needs to be fed back to the terminal; the network device sends the DCI to the terminal, where the DCI carries the HARQ acknowledgment information of the uplink data channel.
  • a new DCI format is defined, and the HARQ confirmation information is carried in the DCI, thereby implementing feedback of the HARQ confirmation information.
  • FIG. 3 is a schematic flowchart of a method for feeding back HARQ confirmation information according to Embodiment 2 of the present application, including:
  • Step 301 The terminal receives downlink control information DCI sent by the network device.
  • Step 302 The terminal acquires HARQ confirmation information of an uplink data channel carried in the DCI.
  • the DCI carries one or more HARQ confirmation information.
  • the terminal performs de-rate matching on the received data to obtain a HARQ confirmation after de-rate matching.
  • Information decoding the rate-matched HARQ acknowledgment information; descrambling the decoded HARQ acknowledgment information.
  • one of the DCIs may carry HARQ acknowledgment information of an uplink data channel within one or more subbands, where the subband refers to a set of physical resource blocks PRB within a system bandwidth.
  • the HARQ acknowledgment information of the uplink data channel in the one or more subbands is a bit sequence, the bits in the bit sequence have a correspondence relationship with the PRB allocated to the terminal, or the bits in the bit sequence are allocated to the terminal.
  • the PRB and the demodulation reference symbol cyclic shift DMRS cyclic shift have a corresponding relationship;
  • the terminal may determine a position of the bit corresponding to the HARQ confirmation information of the terminal in the bit sequence according to the correspondence.
  • the following describes the location of the bit corresponding to the HARQ acknowledgment information of the terminal in the HARQ acknowledgment information bit sequence.
  • a DCI acknowledgment information carrying an uplink data channel in a sub-band the HARQ acknowledgment information carried is N bits, one bit corresponds to HARQ acknowledgment information of one PRB, and N is the number of PRBs in one sub-band.
  • the terminal determines the position of the bit corresponding to the HARQ acknowledgement information of the terminal in the N bits according to the above formula (1).
  • N 6, that is, one MTC subband contains 6 PRBs, and 6 PRBs in one MTC subband are numbered 0, 1, ..., 5 in the frequency domain from low to high;
  • DCC0 carries MTC
  • the HARQ acknowledgment information of the uplink data channel in the subband 0, and the HARQ acknowledgment information of the uplink data channel in the MTC subband 1 is carried in the DCI1; as shown in FIG. 4, the terminal UE1 is assigned the PRB#1 in the MTC subband 0.
  • UE2 is assigned PRB#4 in MTC subband 1, and UE2 hops within the subframe.
  • UE1 when UE1 receives the DCI0, it determines that the bit corresponding to the HARQ acknowledgment information is a1 of DCI0 according to the assigned PRB# 1 ; when UE2 receives the DCI1, it determines according to the assigned PRB#4.
  • the bit corresponding to the HARQ acknowledgment information is a 4 of DCI1.
  • a HARI acknowledgment information carrying an uplink data channel in a sub-band is N ⁇ D bits, N is the number of PRBs in one sub-band, and D is the total number of possible DMRS cyclic shift values. ;
  • N 6, that is, one PRB contains 6 PRBs, and 6 PRBs in one subband are numbered 0, 1, ..., 5 in the frequency domain from low to high;
  • DCI0 carries subband 0.
  • HARQ acknowledgment information of the uplink data channel in the DCI1 the HARQ acknowledgment information of the uplink data channel in the subband 1 is carried in the DCI1;
  • the UE1 is assigned the PRB#1 in the subband 0, and the UE2 is assigned the PRB# in the subband 1. 4; and the possible values of DMRS cyclic shift are 0, 1, 2, 3.
  • One of the DCIs carrying the HARQ acknowledgment information of the uplink data channel in the M subbands, the HARQ acknowledgment information carried is N ⁇ M bits, and N is the number of PRBs in one subband;
  • N 6, that is, one PRB contains 6 PRBs, and 6 PRBs in one subband are numbered 0, 1, ..., 5 in the frequency domain from low to high;
  • a sub-band carries a sub-band 0 and HARQ acknowledgment information of the uplink data channel in subband 1;
  • UE1 is assigned PRB#1 in subband 0, and UE2 is assigned PRB#4 in subband 1
  • the DCI UE1,. 1 when receiving the DCI UE1,. 1 determines HARQ acknowledgment information bits corresponding to a 1 in the DCI according to their assigned subbands 0 PRB #; upon receiving the DCI UE2, according to The PRB #4 in the subband 1 to which it is allocated determines that the bit corresponding to the HARQ acknowledgment information is a 10 in the DCI.
  • the DCI UE1,. 1 when receiving the DCI UE1,. 1 determines HARQ acknowledgment information corresponding to the bits in the DCI according to a 2 assigned to subbands 0 PRB #; upon receiving the DCI UE2, according to The PRB #4 in the subband 1 to which it is assigned determines that the bit corresponding to the HARQ acknowledgment information is a 9 in the DCI.
  • One of the DCIs carrying the HARQ acknowledgment information of the uplink data channel in the M subbands, the HARQ acknowledgment information carried is N ⁇ D ⁇ M bits, N is the number of PRBs in one subband, and D is DMRS cyclic shift possible The total number of values;
  • N 6, that is, one PRB contains 6 PRBs, and 6 PRBs in one subband are numbered 0, 1, ..., 5 in the frequency domain from low to high; a sub-band carries a sub-band 0 and HARQ acknowledgment information of the uplink data channel in subband 1; UE1 is assigned PRB#1 in subband 0, and UE2 is assigned PRB#4 in subband 1.
  • the possible values of DMRS cyclic shift are 0, 1, 2, 3.
  • the bit corresponding to the HARQ acknowledgment information is determined to be a 40 in the DCI according to the PRB #4 in the subband 1 to which it is allocated.
  • the decoding process of the terminal corresponds to the coding process on the network side, and details are not described herein again.
  • the DCI is transmitted in a common search space.
  • the DCI may be transmitted through a physical downlink control channel, and the physical downlink control channel may be transmitted in a data area, and the physical downlink control channel may support a common search space.
  • the embodiment of the present application receives the downlink control information DCI sent by the network device by using the terminal, and acquires the HARQ acknowledgement information of the uplink data channel carried in the DCI.
  • a new DCI format is defined, and the HARQ confirmation information is carried in the DCI, thereby implementing feedback of the HARQ confirmation information.
  • the embodiment of the present application further provides a base station and a terminal.
  • the specific content of the base station and the terminal may be implemented by referring to the foregoing method, and details are not described herein again.
  • FIG. 5 is a schematic diagram of a base station according to Embodiment 3 of the present application, where the base station includes:
  • the processing module 501 is configured to determine HARQ confirmation information of an uplink data channel that needs to be fed back to the terminal;
  • the sending module 502 is configured to send downlink control information DCI to the terminal, where the DCI carries HARQ acknowledgement information of the uplink data channel.
  • the DCI carries one or more HARQ confirmation information.
  • the DCI carrying the HARQ acknowledgment information is scrambled using an RNTI dedicated to the HARQ acknowledgment information feedback.
  • the processing module 501 is further configured to: add a cyclic redundancy check CRC code to the HARQ acknowledgement information, and use an RNTI dedicated to the HARQ acknowledgement information feedback before transmitting the DCI to the terminal.
  • the CRC code is scrambled to obtain the scrambled HARQ acknowledgment information; the scrambled HARQ acknowledgment information is convolutionally encoded; and the convolutionally encoded HARQ acknowledgment information is rate matched.
  • one of the DCIs carries HARQ acknowledgment information of an uplink data channel in one or more subbands
  • the HARQ acknowledgment information of the uplink data channel in the one or more subbands is a bit sequence, the bit sequence
  • the bit in the bit has a corresponding relationship with the PRB allocated to the terminal, or the bit in the bit sequence has a corresponding relationship with the PRB allocated to the terminal and the cyclically shifted DMRS cyclic shift of the demodulation reference symbol
  • the subband refers to the system a physical resource block PRB set in the bandwidth
  • the processing module 501 is specifically configured to: determine, according to the correspondence, a position of a bit corresponding to the HARQ acknowledgment information that needs to be fed back to the terminal in the bit sequence.
  • one DCI carries the HARQ acknowledgment information of the uplink data channel in one sub-band
  • the HARQ acknowledgment information carried is N bits
  • one bit corresponds to HARQ acknowledgment information of one PRB
  • N is PRB in one sub-band
  • the processing module 501 is specifically configured to: determine, according to formula (1) above, HARQ that needs to be fed back to the terminal. The position of the bit corresponding to the information is confirmed in the N bits.
  • one DCI carries the HARQ acknowledgment information of the uplink data channel in one sub-band
  • the HARQ acknowledgment information carried is N ⁇ D bits
  • N is the number of PRBs in one sub-band
  • D is the demodulation reference symbol.
  • the total number of possible values of the cyclic shift DMRS cyclic shift; the processing module 501 is specifically configured to: determine, according to the above formula (2-1) or formula (2-2), a bit corresponding to the HARQ acknowledgement information that needs to be fed back to the terminal. The position in the N x D bits.
  • one of the DCIs carrying the HARQ acknowledgment information of the uplink data channel in the M subbands, the HARQ acknowledgment information carried is N ⁇ M bits, and N is the number of PRBs in one subband; the processing module The 501 is specifically configured to: determine, according to the foregoing formula (3-1) or the formula (3-2), a position of a bit corresponding to the HARQ confirmation information that needs to be fed back to the terminal in the N ⁇ M bits.
  • one of the DCIs carries the HARQ acknowledgment information of the uplink data channel in the M subbands, and the HARQ acknowledgment information carried is N ⁇ D ⁇ M bits, where N is the number of PRBs in one subband, and D is The total number of possible values of the DMRS cyclic shift; the processing module 501 is specifically configured to: according to the above formula (4-1) or formula (4-2) or formula (4-3) or formula (4-4) or formula ( 4-5) or Equation (4-6) determines the position of the bit corresponding to the HARQ acknowledgment information that needs to be fed back to the terminal in the N x D x M bits.
  • the DCI is transmitted in a common search space.
  • the DCI is transmitted through a physical downlink control channel, and the physical downlink control channel is transmitted in a data region.
  • FIG. 6 is a schematic diagram of a terminal according to Embodiment 4 of the present application, where the terminal includes:
  • the receiving module 601 is configured to receive downlink control information DCI sent by the network device;
  • the processing module 602 is configured to obtain HARQ acknowledgement information of the uplink data channel carried in the DCI.
  • the DCI carries one or more HARQ confirmation information.
  • the processing module 602 in the process of acquiring the HARQ acknowledgment information of the uplink data channel carried in the DCI, uses the RNTI dedicated to the HARQ acknowledgment information feedback to perform the HARQ acknowledgment information carried in the DCI. De-scrambling.
  • the processing module 602 is further configured to perform de-rate matching on the received data to obtain the de-rate matched HARQ acknowledgment information, and decode the de-rate matched HARQ acknowledgment information;
  • the RNTI of the HARQ acknowledgment information feedback descrambles the decoded HARQ acknowledgment information.
  • one of the DCIs carries HARQ acknowledgment information of an uplink data channel in one or more subbands
  • the HARQ acknowledgment information of the uplink data channel in the one or more subbands is a bit sequence, the bit sequence
  • the bit in the bit has a corresponding relationship with the PRB allocated to the terminal, or the bit in the bit sequence has a corresponding relationship with the PRB allocated to the terminal and the cyclically shifted DMRS cyclic shift of the demodulation reference symbol
  • the subband refers to the system a physical resource block PRB set in the bandwidth
  • the processing module 602 is specifically configured to: determine the terminal according to the correspondence
  • the HARQ acknowledgment information corresponds to the position of the bit in the bit sequence.
  • one DCI carries the HARQ acknowledgment information of the uplink data channel in one sub-band
  • the HARQ acknowledgment information carried is N bits
  • one bit corresponds to HARQ acknowledgment information of one PRB
  • N is PRB in one sub-band
  • the processing module 602 is specifically configured to: determine, according to the foregoing formula (1), a position of a bit corresponding to the HARQ confirmation information of the terminal in the N bits.
  • one DCI carries the HARQ acknowledgment information of the uplink data channel in one sub-band, and the HARQ acknowledgment information carried is N ⁇ D bits, N is the number of PRBs in one sub-band, and D is DMRS cyclic shift possible
  • the processing module 602 is specifically configured to: determine, according to the foregoing formula (2-1) or formula (2-2), a bit corresponding to the HARQ confirmation information of the terminal in the N ⁇ D bits. position.
  • one of the DCIs carrying the HARQ acknowledgment information of the uplink data channel in the M subbands, the HARQ acknowledgment information carried is N ⁇ M bits, and N is the number of PRBs in one subband; the processing module The 602 is specifically configured to: determine, according to the foregoing formula (3-1) or the formula (3-2), a position of a bit corresponding to the HARQ confirmation information of the terminal in the N ⁇ M bits.
  • one of the DCIs carries the HARQ acknowledgment information of the uplink data channel in the M subbands, and the HARQ acknowledgment information carried is N ⁇ D ⁇ M bits, where N is the number of PRBs in one subband, and D is The total number of possible values of the DMRS cyclic shift; the processing module 602 is specifically configured to: according to the above formula (4-1) or formula (4-2) or formula (4-3) or formula (4-4) or formula ( 4-5) or Equation (4-6) determines the position of the bit corresponding to the HARQ acknowledgment information that needs to be fed back to the terminal in the N x D x M bits.
  • the DCI is transmitted in a common search space.
  • the DCI is transmitted through a physical downlink control channel, and the physical downlink control channel is transmitted in a data region.
  • FIG. 7 is a schematic diagram of a base station according to Embodiment 5 of the present application, where the base station includes:
  • the processor 701 is configured to read a program in the memory 703, and perform the following process: determining HARQ confirmation information of an uplink data channel that needs to be fed back to the terminal; and transmitting, by the transceiver 702, downlink control information DCI to the terminal, where the DCI is Carrying HARQ confirmation information of the uplink data channel;
  • the transceiver 702 is configured to receive and transmit data under the control of the processor 701.
  • the DCI carries one or more HARQ confirmation information.
  • the DCI carrying the HARQ acknowledgment information is scrambled using an RNTI dedicated to the HARQ acknowledgment information feedback.
  • the processor 701 is further configured to: add a cyclic redundancy check CRC code to the HARQ acknowledgement information, and use an RNTI dedicated to the HARQ acknowledgement information feedback before transmitting the DCI to the terminal.
  • the CRC code is scrambled to obtain the scrambled HARQ acknowledgment information; the scrambled HARQ acknowledgment information is convolutionally encoded; and the convolutionally encoded HARQ acknowledgment information is rate matched.
  • one of the DCIs carries HARQ acknowledgment information of an uplink data channel in one or more subbands
  • the HARQ acknowledgment information of the uplink data channel in the one or more subbands is a bit sequence, the bit sequence
  • the bit in the network has a corresponding relationship with the PRB allocated to the terminal; the sub-band refers to a continuous physical resource block PRB subset within the system bandwidth; the processor 701 is specifically configured to: according to the terminal allocated The PRB determines the location of the bit corresponding to the HARQ acknowledgment information that needs to be fed back to the terminal in the bit sequence.
  • one DCI carries the HARQ acknowledgment information of the uplink data channel in one sub-band
  • the HARQ acknowledgment information carried is N bits
  • one bit corresponds to HARQ acknowledgment information of one PRB
  • N is PRB in one sub-band
  • the processor 701 is specifically configured to: determine, according to the above formula (1), a position of a bit corresponding to the HARQ confirmation information that needs to be fed back to the terminal in the N bits.
  • one DCI carries the HARQ acknowledgment information of the uplink data channel in one sub-band
  • the HARQ acknowledgment information carried is N ⁇ D bits
  • N is the number of PRBs in one sub-band
  • D is the demodulation reference symbol.
  • the total number of possible values of the cyclic shift DMRS cyclic shift; the processor 701 is specifically configured to: determine, according to the above formula (2-1) or formula (2-2), a bit corresponding to the HARQ acknowledgement information that needs to be fed back to the terminal. The position in the N x D bits.
  • one of the DCIs carries the HARQ acknowledgment information of the uplink data channel in the M subbands, the HARQ acknowledgment information carried is N ⁇ M bits, and N is the number of PRBs in one subband; the processor The 701 is specifically configured to: determine, according to the foregoing formula (3-1) or the formula (3-2), a position of a bit corresponding to the HARQ confirmation information that needs to be fed back to the terminal in the N bits.
  • one of the DCIs carries the HARQ acknowledgment information of the uplink data channel in the M subbands, and the HARQ acknowledgment information carried is N ⁇ D ⁇ M bits, where N is the number of PRBs in one subband, and D is The total number of possible values of the DMRS cyclic shift; the processor 701 is specifically configured to: according to the above formula (4-1) or formula (4-2) or formula (4-3) or formula (4-4) or formula ( 4-5) or Equation (4-6) determines the position of the bit corresponding to the HARQ acknowledgment information that needs to be fed back to the terminal in the N x D x M bits.
  • the DCI is transmitted in a common search space.
  • the DCI is transmitted through a physical downlink control channel, and the physical downlink control channel is transmitted in a data region.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 701 and various circuits of memory represented by memory 703.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 702 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 701 is responsible for managing the bus architecture and the usual processing, and the memory 703 can store the processor 701 for execution. The data used during the operation.
  • FIG. 8 is a schematic diagram of a terminal according to Embodiment 6 of the present application, where the terminal includes:
  • the processor 801 is configured to read the program in the memory 803, and execute the following process: receiving the downlink control information DCI sent by the network device by using the transceiver 802, and acquiring the HARQ acknowledgement information of the uplink data channel carried in the DCI;
  • the transceiver 802 is configured to receive and transmit data under the control of the processor 801.
  • the DCI carries one or more HARQ confirmation information.
  • the processor 801 in the process of acquiring the HARQ acknowledgment information of the uplink data channel carried in the DCI, uses the RNTI dedicated to the HARQ acknowledgment information feedback to perform the HARQ acknowledgment information carried in the DCI. De-scrambling.
  • the processor 801 is further configured to perform de-rate matching on the received data to obtain a de-rate matched HARQ acknowledgment information, and decode the de-rate matched HARQ acknowledgment information;
  • the RNTI of the HARQ acknowledgment information feedback descrambles the decoded HARQ acknowledgment information.
  • one of the DCIs carries HARQ acknowledgment information of an uplink data channel in one or more subbands
  • the HARQ acknowledgment information of the uplink data channel in the one or more subbands is a bit sequence, the bit sequence
  • the bit in the network has a corresponding relationship with the PRB allocated to the terminal; the sub-band refers to a continuous physical resource block PRB subset within the system bandwidth; the processor 801 is specifically configured to: according to the terminal allocated The PRB determines the location of the bit corresponding to the HARQ acknowledgment information of the terminal in the bit sequence.
  • one DCI carries the HARQ acknowledgment information of the uplink data channel in one sub-band
  • the HARQ acknowledgment information carried is N bits
  • one bit corresponds to HARQ acknowledgment information of one PRB
  • N is PRB in one sub-band
  • the processor 801 is specifically configured to: determine, according to the above formula (1), a position of a bit corresponding to the HARQ confirmation information of the terminal in the N bits.
  • one DCI carries the HARQ acknowledgment information of the uplink data channel in one sub-band, and the HARQ acknowledgment information carried is N ⁇ D bits, N is the number of PRBs in one sub-band, and D is DMRS cyclic shift possible
  • the processor 801 is specifically configured to: determine, according to the above formula (2-1) or formula (2-2), a bit corresponding to the HARQ confirmation information of the terminal in the N ⁇ D bits. position.
  • one of the DCIs carries the HARQ acknowledgment information of the uplink data channel in the M subbands, the HARQ acknowledgment information carried is N ⁇ M bits, and N is the number of PRBs in one subband; the processor The 801 is specifically configured to: determine, according to the foregoing formula (3-1) or the formula (3-2), a position of a bit corresponding to the HARQ confirmation information of the terminal in the N ⁇ M bits.
  • one of the DCIs carries the HARQ acknowledgment information of the uplink data channel in the M subbands, and the HARQ acknowledgment information carried is N ⁇ D ⁇ M bits, where N is the number of PRBs in one subband, and D is The total number of possible values of the DMRS cyclic shift; the processor 801 is specifically configured to: according to the above formula (4-1) or formula (4-2) or formula (4-3) or formula (4-4) or formula ( 4-5) or formula (4-6) determines the HARQ that needs to be fed back to the terminal The position of the bit corresponding to the acknowledgment information in the N ⁇ D ⁇ M bits.
  • the DCI is transmitted in a common search space.
  • the DCI is transmitted through a physical downlink control channel, and the physical downlink control channel is transmitted in a data region.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 801 and various circuits of memory represented by memory 803.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 802 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the user interface 804 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 801 is responsible for managing the bus architecture and general processing, and the memory 803 can store data used by the processor 801 in performing operations.
  • the embodiment of the present application determines the HARQ acknowledgment information of the uplink data channel that needs to be fed back to the terminal by using the network device; the network device sends the DCI to the terminal, where the DCI carries the HARQ acknowledgement of the uplink data channel. information.
  • a new DCI format is defined, and the HARQ confirmation information is carried in the DCI, thereby implementing feedback of the HARQ confirmation information.
  • embodiments of the present application can be provided as a method, or a computer program product.
  • the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
  • the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本申请实施例公开了一种HARQ确认信息的反馈方法及装置。本申请实施例通过网络设备确定需要向终端反馈的上行数据信道的HARQ确认信息;所述网络设备向所述终端发送DCI,所述DCI中携带所述上行数据信道的HARQ确认信息。在本申请实施例中,定义了一种新的DCI格式,实现了在该DCI中携带HARQ确认信息,从而实现了HARQ确认信息的反馈。

Description

一种HARQ确认信息的反馈方法及装置
本申请要求在2014年11月06日提交中国专利局、申请号为201410637897.9、发明名称为“一种HARQ确认信息的反馈方法及装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域,尤其涉及一种混合自动重传请求(Hybrid Automatic Repeat Request,HARQ)确认信息的反馈方法及装置。
背景技术
下行控制信息(Downlink Control Information,DCI)用于传输下行和上行数据传输的调度信息和上行功率控制信息等。根据用途和信息内容的不同,DCI被分为不同的格式(DCI Format)。一条DCI可以通过物理下行控制信道(Physical Downlink Control Channel,PDCCH)或者增强物理下行控制信道(Enhanced Physical Downlink Control Channel,EPDCCH)承载。
长期演进(Long Term Evolution,LTE)***上行采用同步多进程停等HARQ机制,重传必须发生在预定义的时刻。LTE***支持同步非自适应HARQ重传和同步自适应HARQ重传。现有技术中,物理混合自动重传指示信道(Physical Hybrid ARQ Indicator Channel,PHICH)用于承载针对上行共享信道(UL-SCH)数据包的HARQ应答(ACK/NACK)信息。由于ACK/NACK信息由1bit信令表示,信息长度很短,采用了重复编码、低阶调制(如BPSK)、正交扩展、加扰、时频分集映射等方式保证ACK/NACK的传输性能。
随着物联网的兴起,在LTE***中支持机器类通信(Machine Type Communication,MTC)越来越受到重视。在3GPP Release 13立项了针对MTC的物理层增强项目。其中,为了降低MTC UE(User’s Equipment,用户设备,即终端)的成本,将新定义一种UE类型,其上行和下行均只支持1.4MHz射频带宽。
由于承载针对上行共享信道数据包的HARQ应答信息的PHICH是在全带宽发送,因此只支持1.4MHz射频带宽的UE无法接收PHICH,目前,针对只支持1.4MHz射频带宽MTC UE,尚无HARQ确认信息的反馈方案。
发明内容
本申请提供一种混合自动重传请求HARQ确认信息的反馈方法及装置,用于实现HARQ确认信息的反馈。
本申请实施例提供一种混合自动重传请求HARQ确认信息的反馈方法,包括:
网络设备确定需要向终端反馈的上行数据信道的HARQ确认信息;
所述网络设备向所述终端发送下行控制信息DCI,所述DCI中携带所述上行数据信道的HARQ确认信息。
较佳地,所述DCI中携带一个或多个HARQ确认信息。
较佳地,所述携带HARQ确认信息的DCI使用专用于所述HARQ确认信息反馈的无线网络临时标识RNTI进行加扰。
较佳地,所述网络设备向所述终端发送DCI之前还包括对所述DCI中携带的HARQ确认信息进行编码的过程,所述编码的过程包括:
对所述HARQ确认信息添加循环冗余校验CRC码,并使用专用于所述HARQ确认信息反馈的RNTI与所述CRC码进行加扰,得到加扰后的HARQ确认信息;
对加扰后的HARQ确认信息进行卷积编码;
对卷积编码后的HARQ确认信息进行速率匹配。
较佳地,一个所述DCI中携带一个或多个子带内的上行数据信道的HARQ确认信息,所述一个或多个子带内的上行数据信道的HARQ确认信息为一个比特序列,所述比特序列中的比特与分配给终端的PRB存在对应关系,或者所述比特序列中的比特与分配给终端的PRB及解调参考符号循环移位DMRS cyclic shift存在对应关系;所述子带是指在***带宽内的一个物理资源块PRB集合;
所述网络设备发送所述DCI时,根据所述对应关系确定需要反馈给所述终端的HARQ确认信息对应的比特在所述比特序列中的位置。
较佳地,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N个比特,一个比特对应一个PRB的HARQ确认信息,N为一个子带中的PRB数量;
所述网络设备发送所述DCI时,根据以下公式确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N个比特中的位置:
Figure PCTCN2015093689-appb-000001
其中,i表示所述终端的HARQ确认信息在所述N个比特中的位置索引,
Figure PCTCN2015093689-appb-000002
为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1。
较佳地,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D个比特,N为一个子带内的PRB数量,D为DMRS cyclic shift可能的取值总数;
所述网络设备发送所述DCI时,根据以下公式确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×D个比特中的位置:
Figure PCTCN2015093689-appb-000003
或者,
Figure PCTCN2015093689-appb-000004
其中,i表示所述终端的HARQ确认信息在所述N×D个比特中的位置索引,
Figure PCTCN2015093689-appb-000005
为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1,nDMRS为DMRS cyclic shift的编号,取值范围为0,1,…,D-1。
较佳地,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×M个比特,N为一个子带中的PRB数量;
所述网络设备发送所述DCI时,根据以下公式确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×M个比特中的位置:
Figure PCTCN2015093689-appb-000006
或者,
Figure PCTCN2015093689-appb-000007
其中,i表示所述终端的HARQ确认信息在所述N×M个比特中的位置索引,m为子带编号,取值范围为0,1,…,M-1,
Figure PCTCN2015093689-appb-000008
为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1。
较佳地,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D×M个比特,N为一个子带中的PRB数量,D为DMRS cyclic shift可能的取值总数;
所述网络设备发送所述DCI时,根据以下公式确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×D×M个比特中的位置:
Figure PCTCN2015093689-appb-000009
或者,
Figure PCTCN2015093689-appb-000010
或者,
Figure PCTCN2015093689-appb-000011
或者,
Figure PCTCN2015093689-appb-000012
或者,
Figure PCTCN2015093689-appb-000013
或者,
Figure PCTCN2015093689-appb-000014
其中,i表示所述终端的HARQ确认信息在所述N×D×M个比特中的位置索引,m为子带编号,取值范围为0,1,…,M-1,
Figure PCTCN2015093689-appb-000015
为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1,nDMRS为DMRS cyclic shift的编号,取值范围为0,1,…,D-1。
较佳地,所述DCI在公共搜索空间内传输。
较佳地,所述DCI通过物理下行控制信道发送,所述物理下行控制信道在数据区域传输。
本申请实施例提供的另一种混合自动重传请求HARQ确认信息的反馈方法,包括:
终端接收网络设备发送的下行控制信息DCI;
所述终端获取所述DCI中携带的上行数据信道的HARQ确认信息。
较佳地,所述DCI中携带一个或多个HARQ确认信息。
较佳地,所述终端获取所述DCI中携带的上行数据信道的HARQ确认信息的过程中,使用专用于所述HARQ确认信息反馈的RNTI对所述DCI中携带的HARQ确认信息进行解扰。
较佳地,所述终端获取所述DCI中携带的上行数据信道的HARQ确认信息,包括:
所述终端对接收到的数据进行解速率匹配,得到解速率匹配后的HARQ确认信息;
所述终端对解速率匹配后的HARQ确认信息进行解码;
所述终端使用专用于所述HARQ确认信息反馈的RNTI对解码后的HARQ确认信息进行解扰。
较佳地,一个所述DCI中携带一个或多个子带内的上行数据信道的HARQ确认信息,所述一个或多个子带内的上行数据信道的HARQ确认信息为一个比特序列,所述比特序列中的比特与分配给终端的PRB存在对应关系,或者所述比特序列中的比特与分配给终端的PRB及解调参考符号循环移位DMRS cyclic shift存在对应关系;所述子带是指在***带宽内的一个物理资源块PRB集合;
所述终端接收所述DCI时,根据所述对应关系确定所述终端的HARQ确认信息对应的比特在所述比特序列中的位置。
较佳地,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N个比特,一个比特对应一个PRB的HARQ确认信息,N为一个子带中的PRB数量;
所述终端接收所述DCI时,根据以下公式确定所述终端的HARQ确认信息对应的比特在所述N个比特中的位置:
Figure PCTCN2015093689-appb-000016
其中,i表示所述终端的HARQ确认信息在所述N个比特中的位置索引,
Figure PCTCN2015093689-appb-000017
为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1。
较佳地,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D个比特,N为一个子带内的PRB数量,D为DMRS cyclic shift可能的取值总数;
所述终端接收所述DCI时,根据以下公式确定所述终端的HARQ确认信息对应的比特在所述N×D个比特中的位置:
Figure PCTCN2015093689-appb-000018
或者,
Figure PCTCN2015093689-appb-000019
其中,i表示所述终端的HARQ确认信息在所述N×D个比特中的位置索引,
Figure PCTCN2015093689-appb-000020
为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1, nDMRS为DMRS cyclic shift的编号,取值范围为0,1,…,D-1。
较佳地,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×M个比特,N为一个子带中的PRB数量;
所述终端接收所述DCI时,根据以下公式确定所述终端的HARQ确认信息对应的比特在所述N×M个比特中的位置:
Figure PCTCN2015093689-appb-000021
或者,
Figure PCTCN2015093689-appb-000022
其中,i表示所述终端的HARQ确认信息在所述N×M个比特中的位置索引,m为子带编号,取值范围为0,1,…,M-1,
Figure PCTCN2015093689-appb-000023
为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1。
较佳地,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D×M个比特,N为一个子带中的PRB数量,D为DMRS cyclic shift可能的取值总数;
所述终端接收所述DCI时,根据以下公式确定所述终端的HARQ确认信息对应的比特在所述N×D×M个比特中的位置:
Figure PCTCN2015093689-appb-000024
或者,
Figure PCTCN2015093689-appb-000025
或者,
Figure PCTCN2015093689-appb-000026
或者,
Figure PCTCN2015093689-appb-000027
或者,
Figure PCTCN2015093689-appb-000028
或者,
Figure PCTCN2015093689-appb-000029
其中,i表示所述终端的HARQ确认信息在所述N×D×M个比特中的位置索引,m为子带编号,取值范围为0,1,…,M-1,
Figure PCTCN2015093689-appb-000030
为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1,nDMRS为DMRS cyclic shift的编号,取值范围为0,1,…,D-1。
较佳地,所述DCI在公共搜索空间内传输。
较佳地,所述DCI通过物理下行控制信道发送,所述物理下行控制信道在数据区域传输。
本申请实施例提供的一种基站,包括:
处理模块,用于确定需要向终端反馈的上行数据信道的HARQ确认信息;
发送模块,用于向所述终端发送下行控制信息DCI,所述DCI中携带所述上行数据信道的HARQ确认信息。
较佳地,所述DCI中携带一个或多个HARQ确认信息。
较佳地,所述携带HARQ确认信息的DCI使用专用于所述HARQ确认信息反馈的RNTI 进行加扰。
较佳地,所述处理模块还用于:在向所述终端发送DCI之前,对所述HARQ确认信息添加循环冗余校验CRC码,并使用专用于所述HARQ确认信息反馈的RNTI与所述CRC码进行加扰,得到加扰后的HARQ确认信息;对加扰后的HARQ确认信息进行卷积编码;对卷积编码后的HARQ确认信息进行速率匹配。
较佳地,一个所述DCI中携带一个或多个子带内的上行数据信道的HARQ确认信息,所述一个或多个子带内的上行数据信道的HARQ确认信息为一个比特序列,所述比特序列中的比特与分配给终端的PRB存在对应关系,或者所述比特序列中的比特与分配给终端的PRB及解调参考符号循环移位DMRS cyclic shift存在对应关系;所述子带是指在***带宽内的一个物理资源块PRB集合;所述处理模块具体用于:根据所述对应关系确定需要反馈给所述终端的HARQ确认信息对应的比特在所述比特序列中的位置。
较佳地,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N个比特,一个比特对应一个PRB的HARQ确认信息,N为一个子带中的PRB数量;所述处理模块具体用于:根据以下公式确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N个比特中的位置:
Figure PCTCN2015093689-appb-000031
其中,i表示所述终端的HARQ确认信息在所述N个比特中的位置索引,
Figure PCTCN2015093689-appb-000032
为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1。
较佳地,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D个比特,N为一个子带内的PRB数量,D为解调参考符号循环移位DMRS cyclic shift可能的取值总数;所述处理模块具体用于:根据以下公式确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×D个比特中的位置:
Figure PCTCN2015093689-appb-000033
或者,
Figure PCTCN2015093689-appb-000034
其中,i表示所述终端的HARQ确认信息在所述N×D个比特中的位置索引,
Figure PCTCN2015093689-appb-000035
为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1,nDMRS为DMRS cyclic shift的编号,取值范围为0,1,…,D-1。
较佳地,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×M个比特,N为一个子带中的PRB数量;所述处理模块具体用于:根据以下公式确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×M个比特中的位置:
Figure PCTCN2015093689-appb-000036
或者,
Figure PCTCN2015093689-appb-000037
其中,i表示所述终端的HARQ确认信息在所述N×M个比特中的位置索引,m为子带编号,取值范围为0,1,…,M-1,
Figure PCTCN2015093689-appb-000038
为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1。
较佳地,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D×M个比特,N为一个子带中的PRB数量,D为DMRS cyclic shift可能的取值总数;所述处理模块具体用于:根据以下公式确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×D×M个比特中的位置:
Figure PCTCN2015093689-appb-000039
或者,
Figure PCTCN2015093689-appb-000040
或者,
Figure PCTCN2015093689-appb-000041
或者,
Figure PCTCN2015093689-appb-000042
或者,
Figure PCTCN2015093689-appb-000043
或者,
Figure PCTCN2015093689-appb-000044
其中,i表示所述终端的HARQ确认信息在所述N×D×M个比特中的位置索引,m为子带编号,取值范围为0,1,…,M-1,
Figure PCTCN2015093689-appb-000045
为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1,nDMRS为DMRS cyclic shift的编号,取值范围为0,1,…,D-1。
较佳地,所述DCI在公共搜索空间内传输。
较佳地,所述DCI通过物理下行控制信道发送,所述物理下行控制信道在数据区域传输。
本申请实施例提供的一种终端,包括:
接收模块,用于接收网络设备发送的下行控制信息DCI;
处理模块,用于获取所述DCI中携带的上行数据信道的HARQ确认信息。
较佳地,所述DCI中携带一个或多个HARQ确认信息。
较佳地,所述处理模块获取所述DCI中携带的上行数据信道的HARQ确认信息的过程中,使用专用于所述HARQ确认信息反馈的RNTI对所述DCI中携带的HARQ确认信息进行解扰。
较佳地,所述处理模块还用于:对接收到的数据进行解速率匹配,得到解速率匹配后的HARQ确认信息;对解速率匹配后的HARQ确认信息进行解码;使用专用于所述HARQ确认信息反馈的RNTI对解码后的HARQ确认信息进行解扰。
较佳地,一个所述DCI中携带一个或多个子带内的上行数据信道的HARQ确认信息,所述一个或多个子带内的上行数据信道的HARQ确认信息为一个比特序列,所述比特序列中的比特与分配给终端的PRB存在对应关系,或者所述比特序列中的比特与分配给终端的PRB及解调参考符号循环移位DMRS cyclic shift存在对应关系;所述子带是指在***带宽内 的一个物理资源块PRB集合;所述处理模块具体用于:根据所述对应关系确定所述终端的HARQ确认信息对应的比特在所述比特序列中的位置。
较佳地,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N个比特,一个比特对应一个PRB的HARQ确认信息,N为一个子带中的PRB数量;所述处理模块具体用于:根据以下公式确定所述终端的HARQ确认信息对应的比特在所述N个比特中的位置:
Figure PCTCN2015093689-appb-000046
其中,i表示所述终端的HARQ确认信息在所述N个比特中的位置索引,
Figure PCTCN2015093689-appb-000047
为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1。
较佳地,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D个比特,N为一个子带内的PRB数量,D为DMRS cyclic shift可能的取值总数;所述处理模块具体用于:根据以下公式确定所述终端的HARQ确认信息对应的比特在所述N×D个比特中的位置:
Figure PCTCN2015093689-appb-000048
或者,
Figure PCTCN2015093689-appb-000049
其中,i表示所述终端的HARQ确认信息在所述N×D个比特中的位置索引,
Figure PCTCN2015093689-appb-000050
为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1,nDMRS为DMRS cyclic shift的编号,取值范围为0,1,…,D-1。
较佳地,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×M个比特,N为一个子带中的PRB数量;所述处理模块具体用于:根据以下公式确定所述终端的HARQ确认信息对应的比特在所述N×M个比特中的位置:
Figure PCTCN2015093689-appb-000051
或者,
Figure PCTCN2015093689-appb-000052
其中,i表示所述终端的HARQ确认信息在所述N×M个比特中的位置索引,m为子带编号,取值范围为0,1,…,M-1,
Figure PCTCN2015093689-appb-000053
为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1。
较佳地,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D×M个比特,N为一个子带中的PRB数量,D为DMRS cyclic shift可能的取值总数;所述处理模块具体用于:根据以下公式确定所述终端的HARQ确认信息对应的比特在所述N×D×M个比特中的位置:
Figure PCTCN2015093689-appb-000054
或者,
Figure PCTCN2015093689-appb-000055
或者,
Figure PCTCN2015093689-appb-000056
或者,
Figure PCTCN2015093689-appb-000057
或者,
Figure PCTCN2015093689-appb-000058
或者,
Figure PCTCN2015093689-appb-000059
其中,i表示所述终端的HARQ确认信息在所述N×D×M个比特中的位置索引,m为子带编号,取值范围为0,1,…,M-1,
Figure PCTCN2015093689-appb-000060
为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1,nDMRS为DMRS cyclic shift的编号,取值范围为0,1,…,D-1。
较佳地,所述DCI在公共搜索空间内传输。
较佳地,所述DCI通过物理下行控制信道发送,所述物理下行控制信道在数据区域传输。
本申请实施例通过网络设备确定需要向终端反馈的上行数据信道的HARQ确认信息;所述网络设备向所述终端发送DCI,所述DCI中携带所述上行数据信道的HARQ确认信息。在本申请实施例中,定义了一种新的DCI格式,实现了在该DCI中携带HARQ确认信息,从而实现了HARQ确认信息的反馈。
附图说明
图1为本申请实施例一提供的一种HARQ确认信息的反馈方法的流程示意图;
图2为本申请实施例中HARQ确认信息的编码过程示意图;
图3为本申请实施例二提供的一种HARQ确认信息的反馈方法的流程示意图;
图4为本申请实施例资源分配示意图;
图5为本申请实施例三提供的一种基站示意图;
图6为本申请实施例四提供的一种终端示意图;
图7为本申请实施例五提供的一种基站示意图;
图8为本申请实施例六提供的一种终端示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚,下面将结合附图对本申请作进一步地详细描述,显然,所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例,都属于本申请保护的范围。
图1为本申请实施例一提供的一种HARQ确认信息的反馈方法的流程示意图,包括如下步骤101至步骤102:
步骤101,网络设备确定需要向终端反馈的上行数据信道的HARQ确认信息;
步骤102,所述网络设备向所述终端发送DCI,所述DCI中携带所述上行数据信道的 HARQ确认信息。
上述流程中所述的DCI为本申请实施例所新定义的DCI,该DCI用于承载反馈的HARQ确认信息(包括HARQ ACK和/或HARQ NACK)。
可选地,所述DCI中可携带一个或多个HARQ确认信息。如果所述DCI中携带多个HARQ确认信息,则所述多个HARQ确认信息可属于一个终端或多个终端。
较佳地,一个所述DCI中可携带一个或多个子带内的上行数据信道的HARQ确认信息,所述子带是指在***带宽内的一个物理资源块(Physical Resource Block,PRB)集合。所述一个或多个子带内的上行数据信道的HARQ确认信息为一个比特序列,所述比特序列中的比特与分配给终端的PRB存在对应关系,或者所述比特序列中的比特与分配给终端的PRB及解调参考符号(Demodulation Reference Signal,DMRS)循环移位(cyclic shift)存在对应关系。在步骤102中,所述网络设备发送所述DCI时,可根据所述对应关系确定需要反馈给所述终端的HARQ确认信息对应的比特在所述比特序列中的位置。
下面以三种场景为例,描述网络设备确定需要反馈给终端的HARQ确认信息对应的比特在HARQ确认信息比特序列中的位置。
场景一:
一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N个比特,一个比特对应一个PRB的HARQ确认信息,N为一个子带中的PRB数量。
所述网络设备发送所述DCI时,根据以下公式(1)确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N个比特中的位置:
Figure PCTCN2015093689-appb-000061
………………………………公式(1)
其中,i表示所述终端的HARQ确认信息在所述N个比特中的位置索引,
Figure PCTCN2015093689-appb-000062
为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1。
场景二:
一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D个比特,N为一个子带内的PRB数量,D为DMRS cyclic shift可能的取值总数。
所述网络设备发送所述DCI时,根据以下公式(2-1)或者公式(2-2)确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×D个比特中的位置:
Figure PCTCN2015093689-appb-000063
…………………………公式(2-1)
Figure PCTCN2015093689-appb-000064
…………………………公式(2-2)
其中,i表示所述终端的HARQ确认信息在所述N×D个比特中的位置索引,
Figure PCTCN2015093689-appb-000065
为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1,nDMRS为DMRS cyclic shift的编号,取值范围为0,1,…,D-1。
场景三:
一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×M个比特,N为一个子带中的PRB数量。
所述网络设备发送所述DCI时,根据以下公式(3-1)或者公式(3-2)确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×M个比特中的位置:
Figure PCTCN2015093689-appb-000066
………………………………公式(3-1)
Figure PCTCN2015093689-appb-000067
………………………………公式(3-2)
其中,i表示所述终端的HARQ确认信息在所述N×M个比特中的位置索引,m为子带编号,取值范围为0,1,…,M-1,
Figure PCTCN2015093689-appb-000068
为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1。
场景四:
一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D×M个比特,N为一个子带中的PRB数量,D为DMRS cyclic shift可能的取值总数;
所述网络设备发送所述DCI时,根据以下公式(4-1)或者公式(4-2)或者公式(4-3)或者公式(4-4)或者公式(4-5)或者公式(4-6)确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×D×M个比特中的位置:
Figure PCTCN2015093689-appb-000069
………………………………公式(4-1)
Figure PCTCN2015093689-appb-000070
………………………………公式(4-2)
Figure PCTCN2015093689-appb-000071
………………………………公式(4-3)
Figure PCTCN2015093689-appb-000072
………………………………公式(4-4)
Figure PCTCN2015093689-appb-000073
………………………………公式(4-5)
Figure PCTCN2015093689-appb-000074
………………………………公式(4-6)
其中,i表示所述终端的HARQ确认信息在所述N×D×M个比特中的位置索引,m为子带编号,取值范围为0,1,…,M-1,
Figure PCTCN2015093689-appb-000075
为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1,nDMRS为DMRS cyclic shift的编号,取值范围为0,1,…,D-1。
考虑到一个DCI中可携带属于多个终端的HARQ确认信息,为了保证该多个终端能够接收属于自己的HARQ确认信息,该DCI中携带的HARQ确认信息可使用专用于所述HARQ确认信息反馈的无线网络临时标识(Radio Network Temporary Identifier,RNTI)进行加扰。该RNTI可由网络侧预先配置也可预先约定,以便该多个终端可使用该RNTI对接收到的DCI或HARQ确认信息进行解扰。
所述网络设备向所述终端发送DCI之前还包括对所述DCI中携带的HARQ确认信息进行编码的过程。本申请实施例中,所述编码的过程可包括:
对所述HARQ确认信息添加循环冗余校验(Cyclical Redundancy Check,CRC)码,并 使用专用于所述HARQ确认信息反馈的RNTI与所述CRC码进行加扰,得到加扰后的HARQ确认信息;然后,对加扰后的HARQ确认信息进行卷积编码;对卷积编码后的HARQ确认信息进行速率匹配。
图2示出了为所述DCI中携带的HARQ确认信息的编码过程。一个DCI中携带多个HARQ确认信息,每个HARQ确认信息用1比特表示,例如可表示为比特序列a0,a1,…,aA-1,其中A为所述HARQ确认信息的个数;将所述A个HARQ确认信息级联后添加CRC码,使用专用于所述HARQ确认信息反馈的RNTI与所述CRC加扰,得到加扰后的HARQ确认信息比特序列c0,c1,…,cK-1,其中K为添加CRC码后得到的比特序列的长度;对c0,c1,…,cK-1进行卷积编码,得到卷积编码后的HARQ确认信息比特序列d0 (i),d1 (i),…,dD-1 (i),其中D为卷积编码后得到的比特序列的长度;再对d0 (i),d1 (i),…,dD-1 (i)进行速率匹配,得到比特序列e0,e1,…,eE-1,其中E为速率匹配后得到的比特序列的长度。
若一个所述DCI反馈一个终端的多个HARQ确认信息,则在添加CRC后,可采用该终端专用的RNTI与CRC进行加扰。
较佳地,所述DCI在公共搜索空间内传输。例如,所述DCI可通过物理下行控制信道发送,所述物理下行控制信道在数据区域传输,所述物理下行控制信道可支持公共搜索空间。
本申请实施例中的DCI可通过物理下行信道发送。
在一种应用场景中,由于LTE***中的低成本MTC UE上行和下行均只支持1.4MHz射频带宽,因此当UE接入大于1.4MHz***带宽的***时,原有的PDCCH和PHICH信道继续在控制区域发送,MTC UE无法接收PDCCH和PHICH,其中PHICH用于承载HARQ确认信息,PDCCH用于承载DCI。因此需要在数据区域发送物理下行控制信道,以承载由控制区域的PDCCH和PHICH所承载的信息,该物理下行控制信道可称为M-PDCCH。该M-PDCCH与EPDCCH及下行共享物理信道(Physical Downlink Shared Channel,PDSCH)采用频分的方式复用数据区域。在这种情况下,本申请实施例中的用于承载HARQ确认信息的DCI可通过该M-PDCCH发送。
本申请实施例通过网络设备确定需要向终端反馈的上行数据信道的HARQ确认信息;所述网络设备向所述终端发送DCI,所述DCI中携带所述上行数据信道的HARQ确认信息。在本申请实施例中,定义了一种新的DCI格式,实现了在该DCI中携带HARQ确认信息,从而实现了HARQ确认信息的反馈。
图3为本申请实施例二提供的一种HARQ确认信息的反馈方法的流程示意图,包括:
步骤301,终端接收网络设备发送的下行控制信息DCI;
步骤302,所述终端获取所述DCI中携带的上行数据信道的HARQ确认信息。
较佳地,所述DCI中携带一个或多个HARQ确认信息。
较佳地,所述终端对接收到的数据进行解速率匹配,得到解速率匹配后的HARQ确认 信息;对解速率匹配后的HARQ确认信息进行解码;对解码后的HARQ确认信息进行解扰。
较佳地,一个所述DCI中可携带一个或多个子带内的上行数据信道的HARQ确认信息,所述子带是指在***带宽内的一个物理资源块PRB集合。所述一个或多个子带内的上行数据信道的HARQ确认信息为一个比特序列,所述比特序列中的比特与分配给终端的PRB存在对应关系,或者所述比特序列中的比特与分配给终端的PRB及解调参考符号循环移位DMRS cyclic shift存在对应关系;
所述终端接收所述DCI时,可根据所述对应关系确定所述终端的HARQ确认信息对应的比特在所述比特序列中的位置。
下面以三种场景为例,描述终端确定所述终端的HARQ确认信息对应的比特在HARQ确认信息比特序列中的位置。
场景一:
一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N个比特,一个比特对应一个PRB的HARQ确认信息,N为一个子带内的PRB数量。
所述终端接收所述DCI时,根据上述公式(1)确定所述终端的HARQ确认信息对应的比特在所述N个比特中的位置。
例如,N=6,即一个MTC子带内包含6个PRB,且一个MTC子带中的6个PRB按频域从低到高的顺序编号为0,1,…,5;DCI0中携带MTC子带0内的上行数据信道的HARQ确认信息,DCI1中携带MTC子带1内的上行数据信道的HARQ确认信息;如图4所示,终端UE1被分配了MTC子带0中的PRB#1,UE2被分配了MTC子带1中的PRB#4,且UE2在子帧内跳频。
根据公式(1),UE1接收所述DCI0时,根据其分配到的PRB#1确定HARQ确认信息对应的比特为DCI0的a1;UE2接收所述DCI1时,根据其分配到的PRB#4确定HARQ确认信息对应的比特为DCI1的a4
场景二:
一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D个比特,N为一个子带内的PRB数量,D为DMRS cyclic shift可能的取值总数;
所述终端接收所述DCI时,根据上述公式(2-1)或者公式(2-2)确定所述终端的HARQ确认信息对应的比特在所述N×D个比特中的位置。
例如,N=6,即一个子带内包含6个PRB,且一个子带中的6个PRB按频域从低到高的顺序编号为0,1,…,5;DCI0中携带子带0内的上行数据信道的HARQ确认信息,DCI1中携带子带1内的上行数据信道的HARQ确认信息;UE1被分配了子带0中的PRB#1,UE2被分配了子带1中的PRB#4;且DMRS cyclic shift的可能取值为0,1,2,3。UE1分配的DCI调度信息中指示的DMRS cyclic shift为2,则nDMRS=2;UE2的资源为预分配,没有相应的 调度DCI,则nDMRS=0。
根据公式(2-1),UE1接收所述DCI0时,根据其分配到的PRB#1及nDMRS=2确定HARQ确认信息对应的比特为DCI0的a6;UE2接收所述DCI1时,根据所述其分配到的PRB#4及nDMRS=0确定HARQ确认信息对应的比特为DCI1的a16
根据公式(2-2),UE1接收所述DCI0时,根据所述其分配到的PRB#1及nDMRS=2确定HARQ确认信息对应的比特为DCI0的a13;UE2接收所述DCI1时,根据所述其分配到的PRB#4及nDMRS=0确定HARQ确认信息对应的比特为DCI1的a4
场景三:
一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×M个比特,N为一个子带中的PRB数量;
所述终端接收所述DCI时,根据上述公式(3-1)或者公式(3-2)确定所述终端的HARQ确认信息对应的比特在所述N×M个比特中的位置。
例如,N=6,即一个子带内包含6个PRB,且一个子带中的6个PRB按频域从低到高的顺序编号为0,1,…,5;一个DCI中携带子带0和子带1内的上行数据信道的HARQ确认信息;UE1被分配了子带0中的PRB#1,UE2被分配了子带1中的PRB#4,
根据公式(3-1),UE1接收所述DCI时,根据其分配到的子带0中的PRB#1确定HARQ确认信息对应的比特为DCI中的a1;UE2接收所述DCI时,根据其分配到的子带1中PRB#4确定HARQ确认信息对应的比特为DCI中的a10
根据公式(3-2),UE1接收所述DCI时,根据其分配到的子带0中的PRB#1确定HARQ确认信息对应的比特为DCI中的a2;UE2接收所述DCI时,根据其分配到的子带1中PRB#4确定HARQ确认信息对应的比特为DCI中的a9
场景四:
一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D×M个比特,N为一个子带中的PRB数量,D为DMRS cyclic shift可能的取值总数;
所述网络设备发送所述DCI时,根据上述公式(4-1)或者公式(4-2)或者公式(4-3)或者公式(4-4)或者公式(4-5)或者公式(4-6)确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×D×M个比特中的位置。
例如,N=6,即一个子带内包含6个PRB,且一个子带中的6个PRB按频域从低到高的顺序编号为0,1,…,5;一个DCI中携带子带0和子带1内的上行数据信道的HARQ确认信息;UE1被分配了子带0中的PRB#1,UE2被分配了子带1中的PRB#4。且DMRS cyclic shift的可能取值为0,1,2,3。UE1分配的DCI调度信息中指示的DMRS cyclic shift为2,则nDMRS=2;UE2的资源为预分配,没有相应的调度DCI,则nDMRS=0。
根据公式(4-1),UE1接收所述DCI时,根据其分配到的子带0中的PRB#1及nDMRS=2确定HARQ确认信息对应的比特为DCI中的a6;UE2接收所述DCI时,根据其分配到的子带1中PRB#4确定HARQ确认信息对应的比特为DCI中的a40
其它公式确定HARQ确认信息对应的比特的方法不再一一赘述。
本申请实施例中,终端的解码过程与上述网络侧的编码过程是相对应的,此处不再赘述。
较佳地,所述DCI在公共搜索空间内传输。例如,所述DCI可通过物理下行控制信道发送,所述物理下行控制信道在数据区域传输,所述物理下行控制信道可支持公共搜索空间。
本申请实施例通过终端接收网络设备发送的下行控制信息DCI,并获取所述DCI中携带的上行数据信道的HARQ确认信息。在本申请实施例中,定义了一种新的DCI格式,实现了在该DCI中携带HARQ确认信息,从而实现了HARQ确认信息的反馈。
针对上述方法流程,本申请实施例还提供一种基站和一种终端,该基站和终端的具体内容可以参照上述方法实施,在此不再赘述。
图5为本申请实施例三提供的一种基站示意图,该基站包括:
处理模块501,用于确定需要向终端反馈的上行数据信道的HARQ确认信息;
发送模块502,用于向所述终端发送下行控制信息DCI,所述DCI中携带所述上行数据信道的HARQ确认信息。
较佳地,所述DCI中携带一个或多个HARQ确认信息。
较佳地,所述携带HARQ确认信息的DCI使用专用于所述HARQ确认信息反馈的RNTI进行加扰。
较佳地,所述处理模块501还用于:在向所述终端发送DCI之前,对所述HARQ确认信息添加循环冗余校验CRC码,并使用专用于所述HARQ确认信息反馈的RNTI与所述CRC码进行加扰,得到加扰后的HARQ确认信息;对加扰后的HARQ确认信息进行卷积编码;对卷积编码后的HARQ确认信息进行速率匹配。
较佳地,一个所述DCI中携带一个或多个子带内的上行数据信道的HARQ确认信息,所述一个或多个子带内的上行数据信道的HARQ确认信息为一个比特序列,所述比特序列中的比特与分配给终端的PRB存在对应关系,或者所述比特序列中的比特与分配给终端的PRB及解调参考符号循环移位DMRS cyclic shift存在对应关系;所述子带是指在***带宽内的一个物理资源块PRB集合;所述处理模块501具体用于:根据所述对应关系确定需要反馈给所述终端的HARQ确认信息对应的比特在所述比特序列中的位置。
较佳地,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N个比特,一个比特对应一个PRB的HARQ确认信息,N为一个子带中的PRB数量;所述处理模块501具体用于:根据上述公式(1)确定需要反馈给所述终端的HARQ 确认信息对应的比特在所述N个比特中的位置。
较佳地,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D个比特,N为一个子带内的PRB数量,D为解调参考符号循环移位DMRS cyclic shift可能的取值总数;所述处理模块501具体用于:根据上述公式(2-1)或者公式(2-2)确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×D个比特中的位置。
较佳地,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×M个比特,N为一个子带中的PRB数量;所述处理模块501具体用于:根据上述公式(3-1)或者公式(3-2)确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×M个比特中的位置。
较佳地,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D×M个比特,N为一个子带中的PRB数量,D为DMRS cyclic shift可能的取值总数;所述处理模块501具体用于:根据上述公式(4-1)或者公式(4-2)或者公式(4-3)或者公式(4-4)或者公式(4-5)或者公式(4-6)确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×D×M个比特中的位置。
较佳地,所述DCI在公共搜索空间内传输。
较佳地,所述DCI通过物理下行控制信道发送,所述物理下行控制信道在数据区域传输。
图6为本申请实施例四提供的一种终端示意图,该终端包括:
接收模块601,用于接收网络设备发送的下行控制信息DCI;
处理模块602,用于获取所述DCI中携带的上行数据信道的HARQ确认信息。
较佳地,所述DCI中携带一个或多个HARQ确认信息。
较佳地,所述处理模块602在获取所述DCI中携带的上行数据信道的HARQ确认信息的过程中,使用专用于所述HARQ确认信息反馈的RNTI对所述DCI中携带的HARQ确认信息进行解扰。
较佳地,所述处理模块602还用于:对接收到的数据进行解速率匹配,得到解速率匹配后的HARQ确认信息;对解速率匹配后的HARQ确认信息进行解码;使用专用于所述HARQ确认信息反馈的RNTI对解码后的HARQ确认信息进行解扰。
较佳地,一个所述DCI中携带一个或多个子带内的上行数据信道的HARQ确认信息,所述一个或多个子带内的上行数据信道的HARQ确认信息为一个比特序列,所述比特序列中的比特与分配给终端的PRB存在对应关系,或者所述比特序列中的比特与分配给终端的PRB及解调参考符号循环移位DMRS cyclic shift存在对应关系;所述子带是指在***带宽内的一个物理资源块PRB集合;所述处理模块602具体用于:根据所述对应关系确定所述终端 的HARQ确认信息对应的比特在所述比特序列中的位置。
较佳地,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N个比特,一个比特对应一个PRB的HARQ确认信息,N为一个子带中的PRB数量;所述处理模块602具体用于:根据上述公式(1)确定所述终端的HARQ确认信息对应的比特在所述N个比特中的位置。
较佳地,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D个比特,N为一个子带内的PRB数量,D为DMRS cyclic shift可能的取值总数;所述处理模块602具体用于:根据上述公式(2-1)或者公式(2-2)确定所述终端的HARQ确认信息对应的比特在所述N×D个比特中的位置。
较佳地,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×M个比特,N为一个子带中的PRB数量;所述处理模块602具体用于:根据上述公式(3-1)或者公式(3-2)确定所述终端的HARQ确认信息对应的比特在所述N×M个比特中的位置。
较佳地,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D×M个比特,N为一个子带中的PRB数量,D为DMRS cyclic shift可能的取值总数;所述处理模块602具体用于:根据上述公式(4-1)或者公式(4-2)或者公式(4-3)或者公式(4-4)或者公式(4-5)或者公式(4-6)确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×D×M个比特中的位置。
较佳地,所述DCI在公共搜索空间内传输。
较佳地,所述DCI通过物理下行控制信道发送,所述物理下行控制信道在数据区域传输。
图7为本申请实施例五提供的一种基站示意图,该基站包括:
处理器701,用于读取存储器703中的程序,执行下列过程:确定需要向终端反馈的上行数据信道的HARQ确认信息;通过收发机702向所述终端发送下行控制信息DCI,所述DCI中携带所述上行数据信道的HARQ确认信息;
收发机702,用于在处理器701的控制下接收和发送数据。
较佳地,所述DCI中携带一个或多个HARQ确认信息。
较佳地,所述携带HARQ确认信息的DCI使用专用于所述HARQ确认信息反馈的RNTI进行加扰。
较佳地,所述处理器701还用于:在向所述终端发送DCI之前,对所述HARQ确认信息添加循环冗余校验CRC码,并使用专用于所述HARQ确认信息反馈的RNTI与所述CRC码进行加扰,得到加扰后的HARQ确认信息;对加扰后的HARQ确认信息进行卷积编码;对卷积编码后的HARQ确认信息进行速率匹配。
较佳地,一个所述DCI中携带一个或多个子带内的上行数据信道的HARQ确认信息,所述一个或多个子带内的上行数据信道的HARQ确认信息为一个比特序列,所述比特序列中的比特与分配给终端的PRB存在对应关系;所述子带是指在***带宽内的一个连续的物理资源块PRB子集;所述处理器701具体用于:根据所述终端分配到的PRB确定需要反馈给所述终端的HARQ确认信息对应的比特在所述比特序列中的位置。
较佳地,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N个比特,一个比特对应一个PRB的HARQ确认信息,N为一个子带中的PRB数量;所述处理器701具体用于:根据上述公式(1)确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N个比特中的位置。
较佳地,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D个比特,N为一个子带内的PRB数量,D为解调参考符号循环移位DMRS cyclic shift可能的取值总数;所述处理器701具体用于:根据上述公式(2-1)或者公式(2-2)确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×D个比特中的位置。
较佳地,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×M个比特,N为一个子带中的PRB数量;所述处理器701具体用于:根据上述公式(3-1)或者公式(3-2)确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N个比特中的位置。
较佳地,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D×M个比特,N为一个子带中的PRB数量,D为DMRS cyclic shift可能的取值总数;所述处理器701具体用于:根据上述公式(4-1)或者公式(4-2)或者公式(4-3)或者公式(4-4)或者公式(4-5)或者公式(4-6)确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×D×M个比特中的位置。
较佳地,所述DCI在公共搜索空间内传输。
较佳地,所述DCI通过物理下行控制信道发送,所述物理下行控制信道在数据区域传输。
其中,在图7中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器701代表的一个或多个处理器和存储器703代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机702可以是多个元件,即包括发送机和收发机,提供用于在传输介质上与各种其他装置通信的单元。
处理器701负责管理总线架构和通常的处理,存储器703可以存储处理器701在执行 操作时所使用的数据。
图8为本申请实施例六提供的一种终端示意图,该终端包括:
处理器801,用于读取存储器803中的程序,执行下列过程:通过收发机802接收网络设备发送的下行控制信息DCI;获取所述DCI中携带的上行数据信道的HARQ确认信息;
收发机802,用于在处理器801的控制下接收和发送数据。
较佳地,所述DCI中携带一个或多个HARQ确认信息。
较佳地,所述处理器801在获取所述DCI中携带的上行数据信道的HARQ确认信息的过程中,使用专用于所述HARQ确认信息反馈的RNTI对所述DCI中携带的HARQ确认信息进行解扰。
较佳地,所述处理器801还用于:对接收到的数据进行解速率匹配,得到解速率匹配后的HARQ确认信息;对解速率匹配后的HARQ确认信息进行解码;使用专用于所述HARQ确认信息反馈的RNTI对解码后的HARQ确认信息进行解扰。
较佳地,一个所述DCI中携带一个或多个子带内的上行数据信道的HARQ确认信息,所述一个或多个子带内的上行数据信道的HARQ确认信息为一个比特序列,所述比特序列中的比特与分配给终端的PRB存在对应关系;所述子带是指在***带宽内的一个连续的物理资源块PRB子集;所述处理器801具体用于:根据所述终端分配到的PRB确定所述终端的HARQ确认信息对应的比特在所述比特序列中的位置。
较佳地,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N个比特,一个比特对应一个PRB的HARQ确认信息,N为一个子带中的PRB数量;所述处理器801具体用于:根据上述公式(1)确定所述终端的HARQ确认信息对应的比特在所述N个比特中的位置。
较佳地,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D个比特,N为一个子带内的PRB数量,D为DMRS cyclic shift可能的取值总数;所述处理器801具体用于:根据上述公式(2-1)或者公式(2-2)确定所述终端的HARQ确认信息对应的比特在所述N×D个比特中的位置。
较佳地,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×M个比特,N为一个子带中的PRB数量;所述处理器801具体用于:根据上述公式(3-1)或者公式(3-2)确定所述终端的HARQ确认信息对应的比特在所述N×M个比特中的位置。
较佳地,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D×M个比特,N为一个子带中的PRB数量,D为DMRS cyclic shift可能的取值总数;所述处理器801具体用于:根据上述公式(4-1)或者公式(4-2)或者公式(4-3)或者公式(4-4)或者公式(4-5)或者公式(4-6)确定需要反馈给所述终端的HARQ 确认信息对应的比特在所述N×D×M个比特中的位置。
较佳地,所述DCI在公共搜索空间内传输。
较佳地,所述DCI通过物理下行控制信道发送,所述物理下行控制信道在数据区域传输。
其中,在图8中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器801代表的一个或多个处理器和存储器803代表的存储器的各种电路链接在一起。总线架构还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机802可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口804还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器801负责管理总线架构和通常的处理,存储器803可以存储处理器801在执行操作时所使用的数据。
由以上内容可知:本申请实施例通过网络设备确定需要向终端反馈的上行数据信道的HARQ确认信息;所述网络设备向所述终端发送DCI,所述DCI中携带所述上行数据信道的HARQ确认信息。在本申请实施例中,定义了一种新的DCI格式,实现了在该DCI中携带HARQ确认信息,从而实现了HARQ确认信息的反馈。
本领域内的技术人员应明白,本申请的实施例可提供为方法、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(***)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本申请的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例作出另外的变更和修改。所以,所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。
显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。

Claims (44)

  1. 一种混合自动重传请求HARQ确认信息的反馈方法,其特征在于,包括:
    网络设备确定需要向终端反馈的上行数据信道的HARQ确认信息;
    所述网络设备向所述终端发送下行控制信息DCI,所述DCI中携带所述上行数据信道的HARQ确认信息。
  2. 如权利要求1所述的方法,其特征在于,所述DCI中携带一个或多个HARQ确认信息。
  3. 如权利要求1所述的方法,其特征在于,所述携带HARQ确认信息的DCI使用专用于所述HARQ确认信息反馈的无线网络临时标识RNTI进行加扰。
  4. 如权利要求1所述的方法,其特征在于,所述网络设备向所述终端发送DCI之前还包括对所述DCI中携带的HARQ确认信息进行编码的过程,所述编码的过程包括:
    对所述HARQ确认信息添加循环冗余校验CRC码,并使用专用于所述HARQ确认信息反馈的RNTI与所述CRC码进行加扰,得到加扰后的HARQ确认信息;
    对加扰后的HARQ确认信息进行卷积编码;
    对卷积编码后的HARQ确认信息进行速率匹配。
  5. 如权利要求1所述的方法,其特征在于,一个所述DCI中携带一个或多个子带内的上行数据信道的HARQ确认信息,所述一个或多个子带内的上行数据信道的HARQ确认信息为一个比特序列,所述比特序列中的比特与分配给终端的PRB存在对应关系,或者所述比特序列中的比特与分配给终端的PRB及解调参考符号循环移位DMRS cyclic shift存在对应关系;所述子带是指在***带宽内的一个物理资源块PRB集合;
    所述网络设备发送所述DCI时,根据所述对应关系确定需要反馈给所述终端的HARQ确认信息对应的比特在所述比特序列中的位置。
  6. 如权利要求5所述的方法,其特征在于,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N个比特,一个比特对应一个PRB的HARQ确认信息,N为一个子带中的PRB数量;
    所述网络设备发送所述DCI时,根据以下公式确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N个比特中的位置:
    Figure PCTCN2015093689-appb-100001
    其中,i表示所述终端的HARQ确认信息在所述N个比特中的位置索引,
    Figure PCTCN2015093689-appb-100002
    为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1。
  7. 如权利要求5所述的方法,其特征在于,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D个比特,N为一个子带内的PRB数量,D为DMRS cyclic shift可能的取值总数;
    所述网络设备发送所述DCI时,根据以下公式确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×D个比特中的位置:
    Figure PCTCN2015093689-appb-100003
    或者,
    Figure PCTCN2015093689-appb-100004
    其中,i表示所述终端的HARQ确认信息在所述N×D个比特中的位置索引,
    Figure PCTCN2015093689-appb-100005
    为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1,nDMRS为DMRS cyclic shift的编号,取值范围为0,1,…,D-1。
  8. 如权利要求5所述的方法,其特征在于,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×M个比特,N为一个子带中的PRB数量;
    所述网络设备发送所述DCI时,根据以下公式确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×M个比特中的位置:
    Figure PCTCN2015093689-appb-100006
    或者,
    Figure PCTCN2015093689-appb-100007
    其中,i表示所述终端的HARQ确认信息在所述N×M个比特中的位置索引,m为子带编号,取值范围为0,1,…,M-1,
    Figure PCTCN2015093689-appb-100008
    为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1。
  9. 如权利要求5所述的方法,其特征在于,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D×M个比特,N为一个子带中的PRB数量,D为DMRS cyclic shift可能的取值总数;
    所述网络设备发送所述DCI时,根据以下公式确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×D×M个比特中的位置:
    Figure PCTCN2015093689-appb-100009
    或者,
    Figure PCTCN2015093689-appb-100010
    或者,
    Figure PCTCN2015093689-appb-100011
    或者,
    Figure PCTCN2015093689-appb-100012
    或者,
    Figure PCTCN2015093689-appb-100013
    或者,
    Figure PCTCN2015093689-appb-100014
    其中,i表示所述终端的HARQ确认信息在所述N×D×M个比特中的位置索引,m为子带编号,取值范围为0,1,…,M-1,
    Figure PCTCN2015093689-appb-100015
    为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1,nDMRS为DMRS cyclic shift的编号,取值范围为0,1,…,D-1。
  10. 如权利要求1至9中任一项所述的方法,其特征在于,所述DCI在公共搜索空间内 传输。
  11. 如权利要求10所述的方法,其特征在于,所述DCI通过物理下行控制信道发送,所述物理下行控制信道在数据区域传输。
  12. 一种混合自动重传请求HARQ确认信息的反馈方法,其特征在于,包括:
    终端接收网络设备发送的下行控制信息DCI;
    所述终端获取所述DCI中携带的上行数据信道的HARQ确认信息。
  13. 如权利要求12所述的方法,其特征在于,所述DCI中携带一个或多个HARQ确认信息。
  14. 如权利要求12所述的方法,其特征在于,所述终端获取所述DCI中携带的上行数据信道的HARQ确认信息的过程中,使用专用于所述HARQ确认信息反馈的RNTI对所述DCI中携带的HARQ确认信息进行解扰。
  15. 如权利要求12所述的方法,其特征在于,所述所述终端获取所述DCI中携带的上行数据信道的HARQ确认信息,包括:
    所述终端对接收到的数据进行解速率匹配,得到解速率匹配后的HARQ确认信息;
    所述终端对解速率匹配后的HARQ确认信息进行解码;
    所述终端使用专用于所述HARQ确认信息反馈的RNTI对解码后的HARQ确认信息进行解扰。
  16. 如权利要求12所述的方法,其特征在于,一个所述DCI中携带一个或多个子带内的上行数据信道的HARQ确认信息,所述一个或多个子带内的上行数据信道的HARQ确认信息为一个比特序列,所述比特序列中的比特与分配给终端的PRB存在对应关系,或者所述比特序列中的比特与分配给终端的PRB及解调参考符号循环移位DMRS cyclic shift存在对应关系;所述子带是指在***带宽内的一个物理资源块PRB集合;
    所述终端接收所述DCI时,根据所述对应关系确定所述终端的HARQ确认信息对应的比特在所述比特序列中的位置。
  17. 如权利要求16所述的方法,其特征在于,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N个比特,一个比特对应一个PRB的HARQ确认信息,N为一个子带中的PRB数量;
    所述终端接收所述DCI时,根据以下公式确定所述终端的HARQ确认信息对应的比特在所述N个比特中的位置:
    Figure PCTCN2015093689-appb-100016
    其中,i表示所述终端的HARQ确认信息在所述N个比特中的位置索引,
    Figure PCTCN2015093689-appb-100017
    为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1。
  18. 如权利要求16所述的方法,其特征在于,一个DCI中携带一个子带内的上行数据 信道的HARQ确认信息,所携带的HARQ确认信息为N×D个比特,N为一个子带内的PRB数量,D为DMRS cyclic shift可能的取值总数;
    所述终端接收所述DCI时,根据以下公式确定所述终端的HARQ确认信息对应的比特在所述N×D个比特中的位置:
    Figure PCTCN2015093689-appb-100018
    或者,
    Figure PCTCN2015093689-appb-100019
    其中,i表示所述终端的HARQ确认信息在所述N×D个比特中的位置索引,
    Figure PCTCN2015093689-appb-100020
    为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1,nDMRS为DMRS cyclic shift的编号,取值范围为0,1,…,D-1。
  19. 如权利要求16所述的方法,其特征在于,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×M个比特,N为一个子带中的PRB数量;
    所述终端接收所述DCI时,根据以下公式确定所述终端的HARQ确认信息对应的比特在所述N×M个比特中的位置:
    Figure PCTCN2015093689-appb-100021
    或者,
    Figure PCTCN2015093689-appb-100022
    其中,i表示所述终端的HARQ确认信息在所述N×M个比特中的位置索引,m为子带编号,取值范围为0,1,…,M-1,
    Figure PCTCN2015093689-appb-100023
    为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1。
  20. 如权利要求16所述的方法,其特征在于,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D×M个比特,N为一个子带中的PRB数量,D为DMRS cyclic shift可能的取值总数;
    所述终端接收所述DCI时,根据以下公式确定所述终端的HARQ确认信息对应的比特在所述N×D×M个比特中的位置:
    Figure PCTCN2015093689-appb-100024
    或者,
    Figure PCTCN2015093689-appb-100025
    或者,
    Figure PCTCN2015093689-appb-100026
    或者,
    Figure PCTCN2015093689-appb-100027
    或者,
    Figure PCTCN2015093689-appb-100028
    或者,
    Figure PCTCN2015093689-appb-100029
    其中,i表示所述终端的HARQ确认信息在所述N×D×M个比特中的位置索引,m为子带编号,取值范围为0,1,…,M-1,
    Figure PCTCN2015093689-appb-100030
    为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1,nDMRS为DMRS cyclic shift的编号,取值范围为0,1,…,D-1。
  21. 如权利要求12至20中任一项所述的方法,其特征在于,所述DCI在公共搜索空间 内传输。
  22. 如权利要求21所述的方法,其特征在于,所述DCI通过物理下行控制信道发送,所述物理下行控制信道在数据区域传输。
  23. 一种基站,其特征在于,包括:
    处理模块,用于确定需要向终端反馈的上行数据信道的HARQ确认信息;
    发送模块,用于向所述终端发送下行控制信息DCI,所述DCI中携带所述上行数据信道的HARQ确认信息。
  24. 如权利要求23所述的基站,其特征在于,所述DCI中携带一个或多个HARQ确认信息。
  25. 如权利要求23所述的基站,其特征在于,所述携带HARQ确认信息的DCI使用专用于所述HARQ确认信息反馈的RNTI进行加扰。
  26. 如权利要求23所述的基站,其特征在于,所述处理模块还用于:
    在向所述终端发送DCI之前,对所述HARQ确认信息添加循环冗余校验CRC码,并使用专用于所述HARQ确认信息反馈的RNTI与所述CRC码进行加扰,得到加扰后的HARQ确认信息;
    对加扰后的HARQ确认信息进行卷积编码;
    对卷积编码后的HARQ确认信息进行速率匹配。
  27. 如权利要求23所述的基站,其特征在于,一个所述DCI中携带一个或多个子带内的上行数据信道的HARQ确认信息,所述一个或多个子带内的上行数据信道的HARQ确认信息为一个比特序列,所述比特序列中的比特与分配给终端的PRB存在对应关系,或者所述比特序列中的比特与分配给终端的PRB及解调参考符号循环移位DMRS cyclic shift存在对应关系;所述子带是指在***带宽内的一个物理资源块PRB集合;
    所述处理模块具体用于:
    根据所述对应关系确定需要反馈给所述终端的HARQ确认信息对应的比特在所述比特序列中的位置。
  28. 如权利要求27所述的基站,其特征在于,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N个比特,一个比特对应一个PRB的HARQ确认信息,N为一个子带中的PRB数量;所述处理模块具体用于:
    根据以下公式确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N个比特中的位置:
    Figure PCTCN2015093689-appb-100031
    其中,i表示所述终端的HARQ确认信息在所述N个比特中的位置索引,
    Figure PCTCN2015093689-appb-100032
    为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1。
  29. 如权利要求27所述的基站,其特征在于,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D个比特,N为一个子带内的PRB数量,D为解调参考符号循环移位DMRS cyclic shift可能的取值总数;所述处理模块具体用于:
    根据以下公式确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×D个比特中的位置:
    Figure PCTCN2015093689-appb-100033
    或者,
    Figure PCTCN2015093689-appb-100034
    其中,i表示所述终端的HARQ确认信息在所述N×D个比特中的位置索引,
    Figure PCTCN2015093689-appb-100035
    为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1,nDMRS为DMRS cyclic shift的编号,取值范围为0,1,…,D-1。
  30. 如权利要求27所述的基站,其特征在于,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×M个比特,N为一个子带中的PRB数量;所述处理模块具体用于:
    根据以下公式确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×M个比特中的位置:
    Figure PCTCN2015093689-appb-100036
    或者,
    Figure PCTCN2015093689-appb-100037
    其中,i表示所述终端的HARQ确认信息在所述N×M个比特中的位置索引,m为子带编号,取值范围为0,1,…,M-1,
    Figure PCTCN2015093689-appb-100038
    为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1。
  31. 如权利要求27所述的基站,其特征在于,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D×M个比特,N为一个子带中的PRB数量,D为DMRS cyclic shift可能的取值总数;所述处理模块具体用于:
    根据以下公式确定需要反馈给所述终端的HARQ确认信息对应的比特在所述N×D×M个比特中的位置:
    Figure PCTCN2015093689-appb-100039
    或者,
    Figure PCTCN2015093689-appb-100040
    或者,
    Figure PCTCN2015093689-appb-100041
    或者,
    Figure PCTCN2015093689-appb-100042
    或者,
    Figure PCTCN2015093689-appb-100043
    或者,
    Figure PCTCN2015093689-appb-100044
    其中,i表示所述终端的HARQ确认信息在所述N个比特中的位置索引,m为子带编 号,取值范围为0,1,…,M-1,
    Figure PCTCN2015093689-appb-100045
    为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1,nDMRS为DMRS cyclic shift的编号,取值范围为0,1,…,D-1。
  32. 如权利要求23至31中任一项所述的基站,其特征在于,所述DCI在公共搜索空间内传输。
  33. 如权利要求32所述的基站,其特征在于,所述DCI通过物理下行控制信道发送,所述物理下行控制信道在数据区域传输。
  34. 一种终端,其特征在于,包括:
    接收模块,用于接收网络设备发送的下行控制信息DCI;
    处理模块,用于获取所述DCI中携带的上行数据信道的HARQ确认信息。
  35. 如权利要求34所述的终端,其特征在于,所述DCI中携带一个或多个HARQ确认信息。
  36. 如权利要求34所述的终端,其特征在于,所述处理模块获取所述DCI中携带的上行数据信道的HARQ确认信息的过程中,使用专用于所述HARQ确认信息反馈的RNTI对所述DCI中携带的HARQ确认信息进行解扰。
  37. 如权利要求34所述的终端,其特征在于,所述处理模块还用于:
    对接收到的数据进行解速率匹配,得到解速率匹配后的HARQ确认信息;对解速率匹配后的HARQ确认信息进行解码;使用专用于所述HARQ确认信息反馈的RNTI对解码后的HARQ确认信息进行解扰。
  38. 如权利要求34所述的终端,其特征在于,一个所述DCI中携带一个或多个子带内的上行数据信道的HARQ确认信息,所述一个或多个子带内的上行数据信道的HARQ确认信息为一个比特序列,所述比特序列中的比特与分配给终端的PRB存在对应关系,或者所述比特序列中的比特与分配给终端的PRB及解调参考符号循环移位DMRS cyclic shift存在对应关系;所述子带是指在***带宽内的一个物理资源块PRB集合;
    所述处理模块具体用于:根据所述对应关系确定所述终端的HARQ确认信息对应的比特在所述比特序列中的位置。
  39. 如权利要求38所述的终端,其特征在于,一个DCI中携带一个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N个比特,一个比特对应一个PRB的HARQ确认信息,N为一个子带中的PRB数量;所述处理模块具体用于:
    根据以下公式确定所述终端的HARQ确认信息对应的比特在所述N个比特中的位置:
    Figure PCTCN2015093689-appb-100046
    其中,i表示所述终端的HARQ确认信息在所述N个比特中的位置索引,
    Figure PCTCN2015093689-appb-100047
    为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1。
  40. 如权利要求38所述的终端,其特征在于,一个DCI中携带一个子带内的上行数据 信道的HARQ确认信息,所携带的HARQ确认信息为N×D个比特,N为一个子带内的PRB数量,D为DMRS cyclic shift可能的取值总数;所述处理模块具体用于:
    根据以下公式确定所述终端的HARQ确认信息对应的比特在所述N×D个比特中的位置:
    Figure PCTCN2015093689-appb-100048
    或者,
    Figure PCTCN2015093689-appb-100049
    其中,i表示所述终端的HARQ确认信息在所述N×D个比特中的位置索引,
    Figure PCTCN2015093689-appb-100050
    为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1,nDMRS为DMRS cyclic shift的编号,取值范围为0,1,…,D-1。
  41. 如权利要求38所述的终端,其特征在于,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×M个比特,N为一个子带中的PRB数量;所述处理模块具体用于:
    根据以下公式确定所述终端的HARQ确认信息对应的比特在所述N×M个比特中的位置:
    Figure PCTCN2015093689-appb-100051
    或者,
    Figure PCTCN2015093689-appb-100052
    其中,i表示所述终端的HARQ确认信息在所述N×M个比特中的位置索引,m为子带编号,取值范围为0,1,…,M-1,
    Figure PCTCN2015093689-appb-100053
    为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1。
  42. 如权利要求38所述的终端,其特征在于,一个所述DCI中携带M个子带内的上行数据信道的HARQ确认信息,所携带的HARQ确认信息为N×D×M个比特,N为一个子带中的PRB数量,D为DMRS cyclic shift可能的取值总数;所述处理模块具体用于:
    根据以下公式确定所述终端的HARQ确认信息对应的比特在所述N×D×M个比特中的位置:
    Figure PCTCN2015093689-appb-100054
    或者,
    Figure PCTCN2015093689-appb-100055
    或者,
    Figure PCTCN2015093689-appb-100056
    或者,
    Figure PCTCN2015093689-appb-100057
    或者,
    Figure PCTCN2015093689-appb-100058
    或者,
    Figure PCTCN2015093689-appb-100059
    其中,i表示所述终端的HARQ确认信息在所述N个比特中的位置索引,m为子带编号,取值范围为0,1,…,M-1,
    Figure PCTCN2015093689-appb-100060
    为分配给所述终端的PRB的编号,取值范围为0,1,…,N-1,nDMRS为DMRS cyclic shift的编号,取值范围为0,1,…,D-1。
  43. 如权利要求34至42中任一项所述的终端,其特征在于,所述DCI在公共搜索空间内传输。
  44. 如权利要求43所述的终端,其特征在于,所述DCI通过物理下行控制信道发送,所述物理下行控制信道在数据区域传输。
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