WO2020047806A1 - 反馈信息传输方法、装置、设备及系统 - Google Patents

反馈信息传输方法、装置、设备及系统 Download PDF

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Publication number
WO2020047806A1
WO2020047806A1 PCT/CN2018/104429 CN2018104429W WO2020047806A1 WO 2020047806 A1 WO2020047806 A1 WO 2020047806A1 CN 2018104429 W CN2018104429 W CN 2018104429W WO 2020047806 A1 WO2020047806 A1 WO 2020047806A1
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WIPO (PCT)
Prior art keywords
information
time
terminal
frequency resource
feedback information
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PCT/CN2018/104429
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English (en)
French (fr)
Inventor
牟勤
Original Assignee
北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN201880001263.0A priority Critical patent/CN109314987B/zh
Priority to PCT/CN2018/104429 priority patent/WO2020047806A1/zh
Publication of WO2020047806A1 publication Critical patent/WO2020047806A1/zh

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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
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • 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
    • H04L5/0055—Physical resource allocation for ACK/NACK

Definitions

  • the present disclosure relates to the field of communications, and in particular, to a method, a device, a device, and a system for transmitting feedback information.
  • HARQ Hybrid Automatic Repeat Request
  • a terminal accesses a base station through four message steps in a random access process.
  • the terminal obtains the cell radio-network temporary network identifier (C-RNTI) configured by the base station.
  • C-RNTI cell radio-network temporary network identifier
  • the terminal After acquiring the uplink data transmission resources allocated by the base station, the terminal sends uplink data to the base station on the uplink data transmission resources.
  • the base station sends HARQ feedback information to the terminal on a physical downlink control channel (Physical Downlink Control Channel, PDCCH).
  • the HARQ feedback information includes acknowledgement (ACK) and / or negative feedback (NACK).
  • ACK acknowledgement
  • NACK negative feedback
  • the HARQ feedback information is scrambled and transmitted using the terminal's C-RNTI.
  • the terminal can use uplink-free scheduling to send uplink data to the base station.
  • the terminal and the base station do not need to perform a random access process, so the terminal will not obtain the base station allocation. Therefore, the base station cannot scramble and transmit HARQ feedback information to the terminal through the C-RNTI, which results in no HARQ solution when the uplink scheduling is not authorized.
  • the embodiments of the present disclosure provide a feedback information transmission method, device, device, and system, which can solve the problem that when a terminal sends uplink data to a base station using an unlicensed uplink scheduling, since there is no C-RNTI allocated by a random access process, the base station Technical problem that the HARQ feedback information cannot be transmitted to the terminal.
  • the technical solution is as follows:
  • a method for transmitting feedback information includes:
  • the terminal sends uplink data and first identification-related information to the access network device on the first time-frequency resource.
  • the first time-frequency resource is a pre-configured time-frequency resource of the access network device, and the first identification-related information is used to identify the terminal.
  • the terminal receives feedback information sent by the access network device on the target channel, and the feedback information includes second identification-related information, and the second identification-related information is used to identify the terminal that successfully transmitted data on the first time-frequency resource;
  • the target channel includes a PDCCH and / or a PDSCH.
  • the first identification-related information includes: identification information of the terminal; or, some bits in the uplink data; or partial bits in the identification information of the terminal; or, a function that maps the identification information of the terminal through a function Value; or, a terminal-generated random number.
  • the feedback information further includes transmission assistance information
  • the transmission assistance information is information used to assist in transmitting subsequent uplink data.
  • the transmission auxiliary information includes at least one of the following information:
  • the first indication information of the terminal corresponding to the successful data transmission is used to instruct establishment of a radio resource control (Radio Resource Control, RRC) connection;
  • RRC Radio Resource Control
  • Second indication information of the terminal corresponding to the data transmission failure is used to indicate a backoff time setting range when uplink data is retransmitted;
  • the power ramping parameter of the terminal corresponding to the data transmission failure is the power ramping parameter of the terminal corresponding to the data transmission failure.
  • the terminal receiving the feedback information sent by the access network device on the target channel includes:
  • the terminal receives feedback information sent by the access network device on the second time-frequency resource, and the feedback information is carried by the PDCCH.
  • the terminal receiving the feedback information sent by the access network device on the second time-frequency resource includes:
  • the terminal uses a cyclic redundancy check (Cyclic Redundancy Check, CRC) part of the Downlink Control Information (DCI) descrambling sequence on the second time-frequency resource to obtain a DCI including feedback information.
  • CRC Cyclic Redundancy Check
  • the terminal receiving the feedback information sent by the access network device on the target channel includes:
  • the terminal receives scheduling information on the second time-frequency resource, the scheduling information is used to indicate a PDSCH located on the third time-frequency resource, and the scheduling information is carried by the PDCCH;
  • the terminal receives feedback information sent by the access network device on the third time-frequency resource, and the feedback information is carried by the PDSCH.
  • the terminal receiving scheduling information on the second time-frequency resource includes:
  • the terminal descrambles the CRC part of the DCI by using the target scrambling code sequence on the second time-frequency resource to obtain a DCI containing scheduling information.
  • the terminal receiving the feedback information sent by the access network device on the target channel includes:
  • the terminal receives DCI on the second time-frequency resource.
  • the DCI includes preset bits, and the DCI is carried by the PDCCH.
  • the terminal obtains scheduling information from the DCI.
  • the scheduling information is used to indicate the PDSCH located on the third time-frequency resource; and the feedback sent by the access network device is received on the third time-frequency resource.
  • Information, feedback information is carried by the PDSCH.
  • the feedback information when the preset bit is the second value, the feedback information further includes transmission assistance information, and the transmission assistance information is information used to assist in transmitting subsequent uplink data.
  • the receiving the DCI on the second time-frequency resource by the terminal includes:
  • the terminal descrambles the CRC part of the DCI by using the target scrambling code sequence on the second time-frequency resource to obtain a DCI including a preset bit.
  • the method further includes:
  • the terminal receives the target scrambling code sequence configured by the access network device; or, the terminal determines the target scrambling code sequence according to the first time-frequency resource.
  • the terminal determining the target scrambling code sequence according to the first time-frequency resource includes:
  • the terminal acquires the frequency position number f_id and the starting subframe number t_id of the first time-frequency resource;
  • the terminal calculates the number of the target scrambling code sequence according to the frequency position number f_id and the starting subframe number t_id.
  • a method for transmitting feedback information includes:
  • the access network device receives uplink data and first identification-related information sent by the terminal on a first time-frequency resource.
  • the first time-frequency resource is a pre-configured time-frequency resource of the access network device.
  • the first identification-related information is used to identify the terminal. ;
  • the access network device sends feedback information on the target channel, and the feedback information includes second identification-related information, and the second identification-related information is used to identify a terminal that successfully transmitted data on the first time-frequency resource;
  • the target channel includes a PDCCH and / or a PDSCH.
  • the first identification-related information includes: identification information of the terminal; or, some bits in the uplink data; or partial bits in the identification information of the terminal; or, a function that maps the identification information of the terminal through a function Value; or, a terminal-generated random number.
  • the feedback information further includes transmission assistance information
  • the transmission assistance information is information used to assist in transmitting subsequent uplink data.
  • the transmission assistance information includes at least one of the following information: an amount of time advance adjustment of the terminal corresponding to the successful data transmission; a power control parameter of the terminal corresponding to the successful data transmission; An indication information, the first indication information is used to instruct the establishment of an RRC connection; the second indication information of the terminal corresponding to the data transmission failure, and the second indication information is used to indicate the backoff time setting range when the uplink data is retransmitted; the data The amount of time adjustment of the terminal corresponding to the transmission failure; the power ramping parameter of the terminal corresponding to the data transmission failure.
  • the access network device sending feedback information on the target channel includes:
  • the access network device sends feedback information on the second time-frequency resource, and the feedback information is carried by the PDCCH.
  • the access network device sending feedback information on the second time-frequency resource includes:
  • the access network device scrambles the CRC part of the DCI through the target scrambling code sequence
  • the access network device sends DCI to the terminal on the second time-frequency resource.
  • the DCI carries feedback information, and the DCI is carried by the PDCCH.
  • the access network device receiving the feedback information sent by the access network device on the target channel includes:
  • the access network device sends scheduling information on the second time-frequency resource, the scheduling information is used to indicate a PDSCH located on the third time-frequency resource, and the scheduling information is carried by the PDCCH;
  • the access network device sends feedback information on the third time-frequency resource, and the feedback information is carried by the PDSCH.
  • the access network device sending scheduling information on the second time-frequency resource includes:
  • the access network device scrambles the CRC part of the DCI through the target scrambling code sequence
  • the access network device sends DCI to the terminal on the second time-frequency resource.
  • the DCI carries scheduling information, and the scheduling information is carried by the PDCCH.
  • the access network device sending feedback information on the target channel includes:
  • the access network device sends DCI on the second time-frequency resource.
  • the DCI includes preset bits and feedback information, the DCI is carried by the PDCCH, and the preset bit is a first value;
  • the access network device sends DCI on the second time-frequency resource.
  • the DCI includes preset bits and scheduling information.
  • the DCI is carried by the PDCCH.
  • the preset bit is the second value.
  • the scheduling information is used to indicate that it is located at the third time-frequency.
  • the feedback information when the preset bit is the second value, the feedback information further includes transmission assistance information, and the transmission assistance information is information used to assist in transmitting subsequent uplink data.
  • the access network device sending the DCI on the second time-frequency resource includes:
  • the access network device scrambles the CRC part of the DCI through the target scrambling code sequence
  • the access network device sends the scrambled DCI to the terminal on the second time-frequency resource.
  • the method further includes:
  • the access network device configures the target scrambling code sequence to the terminal; or, the access network device determines the target scrambling code sequence according to the first time-frequency resource.
  • the access network device determining the target scrambling code sequence according to the first time-frequency resource includes:
  • the access network device obtains the frequency position number f_id and the starting subframe number t_id of the first time-frequency resource;
  • the access network device calculates the number of the target scrambling code sequence according to the frequency position number f_id and the starting subframe number t_id.
  • a feedback information transmission device includes:
  • the first sending module is configured to send uplink data and first identification-related information to the access network device on the first time-frequency resource.
  • the first time-frequency resource is a pre-configured time-frequency resource of the access network device.
  • the first identifier The relevant information is used to identify the terminal;
  • a first receiving module is configured to receive feedback information sent by an access network device on a target channel, where the feedback information includes second identifier-related information, and the second identifier-related information is used to identify a successful data transmission on the first time-frequency resource. terminal;
  • the target channel includes a PDCCH and / or a PDSCH.
  • the first identification-related information includes: identification information of the terminal; or, some bits in the uplink data; or partial bits in the identification information of the terminal; or, a function that maps the identification information of the terminal through a function Value; or, a terminal-generated random number.
  • the feedback information further includes transmission assistance information
  • the transmission assistance information is information used to assist in transmitting subsequent uplink data.
  • the transmission assistance information includes at least one of the following information: an amount of time advance adjustment of the terminal corresponding to the successful data transmission; a power control parameter of the terminal corresponding to the successful data transmission; An instruction information, the first instruction information is used to indicate the RRC connection; the second instruction information of the terminal corresponding to the data transmission failure, and the second instruction information is used to indicate the backoff time setting range when the uplink data is retransmitted; data transmission The amount of time adjustment of the terminal corresponding to the failure; the power ramping parameter of the terminal corresponding to the data transmission failure.
  • the first receiving module is configured to receive feedback information sent by an access network device on a second time-frequency resource, and the feedback information is carried by a PDCCH.
  • the first processing module is configured to descramble a CRC part of the DCI using a target scrambling code sequence on the second time-frequency resource to obtain a DCI including feedback information.
  • the first receiving module is configured to receive scheduling information on a second time-frequency resource, the scheduling information is used to indicate a third time-frequency resource located on the PDSCH, and the scheduling information is carried by the PDCCH;
  • the first receiving module is configured to receive feedback information sent by an access network device on a third time-frequency resource, and the feedback information is carried by the PDSCH.
  • the apparatus further includes a first processing module configured to descramble a CRC portion of the DCI using a target scrambling code sequence on a second time-frequency resource to obtain a DCI including scheduling information.
  • the first receiving module is configured to receive the DCI on the second time-frequency resource, the DCI includes a preset bit, and the DCI is carried by the PDCCH;
  • the first receiving module is configured to obtain feedback information from the DCI when the preset bit is a first value
  • the first receiving module is configured to obtain scheduling information from the DCI when the preset bit is the second value, and the scheduling information is used to indicate a PDSCH located on a third time-frequency resource;
  • the feedback information sent by the network access device is carried by the PDSCH.
  • the feedback information when the preset bit is the second value, the feedback information further includes transmission assistance information, and the transmission assistance information is information used to assist in transmitting subsequent uplink data.
  • the apparatus further includes a first processing module configured to descramble a CRC portion of the DCI using a target scrambling code sequence on a second time-frequency resource to obtain a DCI.
  • the first receiving module is configured to receive a target scrambling code sequence configured by an access network device; or the first processing module is configured to determine a target scrambling code sequence according to a first time-frequency resource.
  • the first processing module is configured to obtain a frequency position number f_id and a starting subframe number t_id of the first time-frequency resource, and calculate according to the frequency position number f_id and the starting subframe number t_id The number of the scrambling sequence.
  • a feedback information transmission device includes:
  • the second receiving module is configured to receive the uplink data and the first identification-related information sent by the terminal on the first time-frequency resource.
  • the first time-frequency resource is a time-frequency resource pre-configured by the access network device, and the first identification-related information. Used to identify the terminal;
  • a second sending module configured to send feedback information on a target channel, the feedback information includes second identification-related information, and the second identification-related information is used to identify a terminal that successfully transmitted data on the first time-frequency resource;
  • the target channel includes a PDCCH and / or a PDSCH.
  • the first identification-related information includes: identification information of the terminal; or, some bits in the uplink data; or partial bits in the identification information of the terminal; or, a function that maps the identification information of the terminal through a function Value; or, a terminal-generated random number.
  • the feedback information further includes transmission assistance information
  • the transmission assistance information is information used to assist in transmitting subsequent uplink data.
  • the transmission assistance information includes at least one of the following information: an amount of time advance adjustment of the terminal corresponding to the successful data transmission; a power control parameter of the terminal corresponding to the successful data transmission; An indication information, the first indication information is used to instruct the establishment of an RRC connection; the second indication information of the terminal corresponding to the data transmission failure, and the second indication information is used to indicate the backoff time setting range when the uplink data is retransmitted; the data The amount of time adjustment of the terminal corresponding to the transmission failure; the power ramping parameter of the terminal corresponding to the data transmission failure.
  • the second sending module is configured to send feedback information on the second time-frequency resource, and the feedback information is carried by the PDCCH.
  • the apparatus further includes a second processing module configured to scramble a CRC part of the DCI by using a target scrambling code sequence;
  • the second sending module is configured to send DCI to the terminal on the second time-frequency resource, the DCI carries feedback information, and the DCI is carried by the PDCCH.
  • the second sending module is configured to send scheduling information on the second time-frequency resource, the scheduling information is used to indicate a PDSCH located on the third time-frequency resource, and the scheduling information is carried by the PDCCH;
  • the second sending module is configured to send feedback information on the third time-frequency resource, and the feedback information is carried by the PDSCH.
  • the second processing module is configured to scramble a CRC part of the DCI by using a target scrambling code sequence
  • the second sending module is configured to send DCI to the terminal on the second time-frequency resource.
  • the DCI carries scheduling information, and the scheduling information is carried by the PDCCH.
  • the second sending module is configured to send the DCI on the second time-frequency resource.
  • the DCI includes preset bits and feedback information.
  • the DCI is carried by the PDCCH.
  • the preset bits are value;
  • the second sending module is configured to send DCI on a second time-frequency resource of the PDCCH.
  • the DCI includes preset bits and scheduling information.
  • the DCI is carried by the PDCCH.
  • the preset bit is a second value.
  • the scheduling information is used for Indicates a PDSCH located on a third time-frequency resource; the access network device sends feedback information on the third time-frequency resource, and the feedback information is carried by the PDSCH.
  • the feedback information when the preset bit is the second value, includes second identification-related information and transmission assistance information, and the transmission assistance information is information used to assist in transmitting subsequent uplink data.
  • the second processing module is configured to scramble the CRC part of the DCI by a target scrambling code sequence
  • the second sending module is configured to send the scrambled DCI to the terminal on the second time-frequency resource.
  • the second processing module is configured to configure a target scrambling code sequence to the terminal; or, the second processing module is configured to determine a target scrambling code sequence according to the first time-frequency resource.
  • the second processing module is configured to obtain a frequency position number f_id and a starting subframe number t_id of the first time-frequency resource; and calculate according to the frequency position number f_id and the starting subframe number t_id. The number of the first scrambling code sequence.
  • a terminal is provided, and the terminal includes:
  • a transceiver connected to the processor
  • Memory for storing processor-executable instructions
  • the processor is configured to load and execute executable instructions to implement the feedback information transmission method described in the above aspect.
  • an access network device is provided, and the device includes:
  • a transceiver connected to the processor
  • Memory for storing processor-executable instructions
  • the processor is configured to load and execute executable instructions to implement the feedback information transmission method described in the above aspect.
  • a computer-readable storage medium stores at least one instruction, at least one program, code set, or instruction set, and the at least one instruction, the At least one program, the code set, or the instruction set is loaded and executed by the processor to implement the feedback information transmission method described in the above aspect.
  • the terminal sends uplink data and first identification-related information on the pre-configured first time-frequency resource, and the first identification-related information is used to identify the terminal.
  • the access network device receives the uplink data and the first identification-related information sent by the terminal on the pre-configured first time-frequency resource, and sends feedback information on the target channel, which solves the problem when the terminal sends uplink data to the base station using the uplink-free scheduling Because there is no C-RNTI allocated in the random access process, the base station cannot transmit the technical problem of HARQ feedback information to the terminal.
  • the terminal provides the first identification-related information to the access network device by itself, and the access network device uses the first identification-related information provided by the terminal to perform HARQ feedback, thereby achieving the authorization-free uplink scheduling transmission HARQ feedback mechanism in the scenario.
  • FIG. 1 is a signaling interaction diagram of a contention-based random access process in LTE
  • FIG. 2 is a signaling interaction diagram of the related art in the unlicensed uplink scheduling transmission
  • Fig. 3 is a schematic diagram showing an implementation environment involved in a feedback information transmission method according to an exemplary embodiment
  • Fig. 4 is a flow chart showing a method for transmitting feedback information according to an exemplary embodiment
  • Fig. 5 is a flow chart showing a method for transmitting feedback information according to an exemplary embodiment
  • Fig. 6 is a flow chart showing a method for transmitting feedback information according to an exemplary embodiment
  • Fig. 7 is a flow chart showing a method for transmitting feedback information according to an exemplary embodiment
  • Fig. 8 is a flow chart showing a method for transmitting feedback information according to an exemplary embodiment
  • Fig. 9 is a block diagram of a feedback information transmission device according to an exemplary embodiment
  • Fig. 10 is a block diagram showing a feedback information transmission device according to an exemplary embodiment
  • Fig. 11 is a block diagram showing a device for transmitting feedback information according to an exemplary embodiment
  • Fig. 12 is a block diagram showing a feedback information transmission system according to an exemplary embodiment.
  • the random access process in the LTE system is divided into four steps.
  • the user equipment User Equipment
  • RACH Random Access Channel
  • the eNodeB eNodeB
  • the eNB sends a random access response to the UE in the downlink.
  • the random access response should include at least the following: Information, such as the number of the received preamble sequence, timing adjustment information, the uplink resource location indication information allocated for the UE, and the temporarily assigned C-RNTI; in the third step, after receiving the random access response, the UE It is instructed to send message 3 on the allocated uplink resource. In the fourth step, the eNB receives message 3 of the UE and returns a conflict resolution message to the UE that has successfully accessed.
  • Information such as the number of the received preamble sequence, timing adjustment information, the uplink resource location indication information allocated for the UE, and the temporarily assigned C-RNTI
  • the UE It is instructed to send message 3 on the allocated uplink resource.
  • the eNB receives message 3 of the UE and returns a conflict resolution message to the UE that has successfully accessed.
  • the above random access process will bring huge signaling overhead.
  • the resources occupied by signaling transmission will be much larger than those occupied by the Internet of Things transmission scenario. Therefore, for this scenario, an authorization-free
  • the uplink transmission resource is a transmission resource on the unlicensed spectrum.
  • the HARQ in the LTE system is carried by the user-specific PDCCH.
  • the CRC in the DCI in the PDCCH is scrambled by the terminal-specific C-RNTI.
  • the UE determines the new data indicator (New-Date Indicator) in the DCI (New-Date Indicator) Whether to flip to determine whether the transmission was successful.
  • the traditional HARQ mechanism cannot be applied to the above-mentioned uplink-free scheduling.
  • One of the reasons is that in the unlicensed uplink scheduling, multiple users may transmit resources in the same resource.
  • the C-RNTI is configured by the access network device to the user during the random access process, but the authorization-free scheduling saves the random access process, so it cannot rely on the C-RNTI Scramble the PDCCH carrying HARQ.
  • some additional information needs to be indicated, such as whether users who have successfully transmitted uplink data need to switch to the connected state to facilitate receiving downlink data; whether users who do not successfully transmit uplink data need to provide auxiliary information To facilitate the next data transfer. Therefore, in the grant-free uplink scheduling, the HARQ mechanism needs to be redesigned.
  • a terminal when a terminal sends uplink data in an unauthorized uplink scheduling process, it simultaneously provides access network equipment with first identification-related information, and the first identification-related information is used to identify the terminal. Then, the access network device performs HARQ feedback according to the first identification-related information and whether the uplink data is successfully transmitted.
  • FIG. 3 is a schematic structural diagram of a mobile communication system according to an embodiment of the present application.
  • the mobile communication system may be a 5G system, also called an NR system.
  • the mobile communication system includes: an access network device 301 and a terminal 302.
  • the access network device 301 may be a base station.
  • the base station may be a base station (gNB) employing a centralized distributed architecture in a 5G system.
  • the access network device 301 adopts a centralized distributed architecture it usually includes a centralized unit (CU) and at least two distributed units (DU).
  • the centralized unit is provided with a protocol stack of the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Layer Control Protocol (RLC) layer, and the Media Access Control (MAC) layer; distribution A unit (Physical, PHY) layer protocol stack is provided in the unit, and the specific implementation manner of the access network device 301 is not limited in this embodiment of the present application.
  • the access network device may further include a home base station (Home eNB, HeNB), a relay (Relay), a pico base station Pico, and the like.
  • the access network device 301 and the terminal 302 establish a wireless connection through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface (New Radio, NR); or the wireless air interface may also be a 5G-based, Wireless air interface for next generation mobile communication network technology standards.
  • 5G fifth generation mobile communication network technology
  • NR New Radio, NR
  • NR New Radio
  • the terminal 302 may be a device that provides voice and / or data connectivity to a user.
  • the terminal can communicate with one or more core networks via a Radio Access Network (RAN).
  • RAN Radio Access Network
  • the terminal 302 can be a mobile terminal, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal.
  • a mobile terminal such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal.
  • it can be a portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile device.
  • Access terminal Access terminal
  • user device User terminal
  • user agent User agent
  • User equipment User equipment
  • User Equipment User Equipment
  • the mobile communication system shown in FIG. 3 may include multiple access network devices 301 and / or multiple terminals 302.
  • one access network device 301 and one terminal 302 are shown.
  • this embodiment does not limit this.
  • Fig. 4 is a flow chart showing a method for transmitting feedback information according to an exemplary embodiment.
  • the method for transmitting feedback information is applied to the mobile communication system shown in Fig. 3.
  • the method includes the following steps:
  • the terminal sends uplink data and first identification-related information to the access network device on the first time-frequency resource.
  • the first time-frequency resource is a pre-configured time-frequency resource of the access network device, and the first identification-related information. Used to identify the terminal;
  • the first identification-related information adopts any one of the following implementation manners:
  • IMSI International Mobile Subscriber Identification Number
  • the first identification-related information is a function value obtained by mapping the identification information of the terminal through a function, such as IMSI mod. Taking Y as 8 as an example, the remainder y obtained by dividing IMSI by 8 is y.
  • the first identification-related information is a random number generated by the terminal.
  • the terminal randomly generates a random number of Z bit, where Z is an integer not less than 1.
  • the access network device receives the uplink data and the first identification-related information sent by the terminal on the first time-frequency resource, and the first identification-related information is used to identify the terminal.
  • the access network device sends feedback information on the target channel, and the feedback information includes second identification-related information;
  • the target channel includes a PDCCH and / or a PDSCH.
  • the access network device sends feedback information on the target channel, and the feedback information includes one or more second identification-related information.
  • the second identification-related information is used to identify a terminal that has successfully transmitted data on the first time-frequency resource.
  • the uplink data of the terminal is successfully sent, there is a second identifier-related information in the feedback information that is the same as the first identifier-related information.
  • the terminal receives feedback information sent by the access network device on the target channel.
  • the feedback information includes second identification-related information, and the second identification-related information is used to identify the terminal that successfully transmitted data on the first time-frequency resource.
  • a terminal sends uplink data and first identification-related information on a pre-configured first time-frequency resource, and the first identification-related information is used to identify the terminal.
  • the terminal receives feedback information sent by the access network device on the target channel.
  • the feedback information includes second identification-related information, and the second identification-related information is used to identify the terminal that successfully transmitted data on the first time-frequency resource.
  • the terminal provides the first identification-related information to the access network device by itself, and the access network device uses the first identification-related information provided by the terminal to perform HARQ feedback, thereby realizing the authorization-free uplink scheduling transmission HARQ feedback mechanism in the scenario.
  • the first way the feedback information is carried on the PDCCH
  • the second method the feedback information is carried on the PDSCH;
  • the third way the feedback information is selectively carried on the PDCCH or PDSCH depending on the actual transmission situation.
  • FIG. 5 shows a flowchart of a feedback information transmission method according to another exemplary embodiment.
  • the method carries feedback information on a PDCCH.
  • the method includes the following steps:
  • step 501 the access network device pre-configures the terminal with one or more time-frequency resources for the unlicensed uplink scheduling.
  • the access network device sends configuration resource information to the terminal through high-level signaling, and the configuration resource information is used to configure one or more time-frequency resources used for uplink scheduling without authorization.
  • the high-level signaling may be user-specific signaling or system broadcasting.
  • the configuration resource information is used to indicate one or more time-frequency resources available in the unlicensed uplink scheduling.
  • the configuration resource information includes frequency information and / or time domain information of the one or more time-frequency resources.
  • the one or more time-frequency resources are resources used for Internet of Things (IoT) transmission.
  • IoT Internet of Things
  • the frequency domain information includes the starting position and number of frequency domain units, or the serial number of the frequency domain unit; the time domain information includes the serial number of the time domain unit, and so on.
  • the access network device further configures a scrambling code sequence to the terminal through high-level signaling.
  • the scrambling code sequence corresponds to the time-frequency resource of the unlicensed uplink scheduling, for example, the time-frequency resource A corresponds to the scrambling code sequence 1, and the time-frequency resource B corresponds to the scrambling code sequence 2.
  • the configuration time of the configuration resource information and the scrambling code sequence is the same or different, and / or, the high-level signaling used to configure the resource information and the scrambling code sequence is the same or different.
  • the terminal sends uplink data and first identification-related information on the first time-frequency resource.
  • the first time-frequency resource is a pre-configured time-frequency resource of the access network device, and the first identification-related information is used to identify the terminal.
  • the terminal receives configuration resource information of the access network device, and obtains frequency domain information and / or time domain information of one or more time-frequency resources in the uplink scheduling without authorization from the configuration resource information.
  • the terminal randomly selects or selects the first time-frequency resource to be used among multiple first time-frequency resources according to a policy. This embodiment does not apply the method of selecting the first time-frequency resource. limited.
  • the access network device receives the uplink data and the first identification-related information sent by the terminal on the first time-frequency resource, and the first identification-related information is used to identify the terminal.
  • the access network device After receiving the uplink data, the access network device generates feedback information based on whether the uplink data is successfully received. Schematically, when the uplink data is successfully received, the access network device adds the first identifier-related information corresponding to the uplink data to the feedback information as the second identifier-related information in the feedback information. The second identifier-related information is used It is used to identify the terminal that successfully transmitted the uplink data. When the uplink data fails to be received, the access network device does not add the first identifier-related information corresponding to the uplink data to the feedback information.
  • more than two terminals may send uplink data at the same time on the first time-frequency resource. At this time, some terminals may have uplinks. The data transmission is successful, and the uplink data of another terminal fails to be sent; or, the uplink data of all terminals is sent successfully; or the uplink data of all terminals fails to be sent.
  • the access network device When uplink data transmission of some terminals is successful and uplink data transmission of another terminal fails, the access network device adds the first identification-related information of the terminal that successfully transmitted the uplink data to the feedback information. For example, when terminal A, terminal B, and terminal C transmit uplink data on the first time-frequency resource at the same time, in which terminal A and terminal C successfully transmit uplink data, the feedback information sent by the access network device includes two second identification-related information : Identification-related information of terminal A, and identification-related information of terminal C.
  • the access network device When the uplink data of all the terminals is successfully sent, the access network device adds the first identification-related information of all the terminals that sent the uplink data on the first time-frequency resource to the feedback information. At this time, the second identification related information in the feedback information is multiple.
  • the access network device When the uplink data of all the terminals fails to be sent, the access network device does not generate the second identification-related information.
  • step 504 the access network device sends feedback information on the second time-frequency resource, the feedback information is carried by the PDCCH, and the feedback information includes second identification-related information.
  • the second time-frequency resource has a corresponding relationship with the first time-frequency resource.
  • the second time-frequency resource and the first time-frequency resource have a correspondence relationship in the time domain, or the second time-frequency resource and the first time-frequency resource have a correspondence relationship in the frequency domain.
  • the feedback information may include multiple second identification-related information.
  • the access network device generates the DCI carrying the feedback information, and then scrambles the CRC part of the DCI through the target scrambling code sequence; and then sends the DCI to the terminal on the second time-frequency resource.
  • the access network device determines the target scrambling code sequence used for the current scrambling based on the configuration information of the scrambling code sequence. In other embodiments, the access network device determines the first scrambling code sequence based on the first time-frequency resource.
  • the target scrambling code sequence that is, the target scrambling code sequence used this time is dynamically calculated according to the time-frequency position of the first time-frequency resource. Illustratively, the access network device obtains the frequency position number f_id and the starting subframe number t_id of the first time-frequency resource.
  • the frequency position number f_id is, for example, a narrowband number, or a physical resource block (PRB) number; the access network device calculates the number of the target scrambling code sequence according to the frequency position number f_id and the starting subframe number t_id. For example, the access network device calculates the number of the target scrambling code sequence according to 10 * f_id + 1 + t_id.
  • PRB physical resource block
  • step 505 the terminal receives feedback information sent by the access network device on the second time-frequency resource, and the feedback information is carried by the PDCCH.
  • the terminal descrambles the CRC part of the DCI using the target scrambling code sequence on the second time-frequency resource to obtain the DCI including the feedback information.
  • the terminal receives the scrambling code sequence configured by the access network device in advance.
  • the access network device configures the terminal with a scrambling code sequence through high-level signaling; then, the terminal determines the target scrambling code sequence used for the current descrambling according to the configuration information of the scrambling code sequence.
  • the terminal determines the target scrambling code sequence according to the first time-frequency resource, that is, dynamically calculates the target scrambling code sequence used this time according to the time-frequency position of the first time-frequency resource.
  • the terminal obtains a frequency position number f_id and a starting subframe number t_id of the first time-frequency resource.
  • the frequency position number f_id is, for example, a narrowband number or a physical resource block (PRB) number;
  • the terminal calculates the number of the target scrambling code sequence according to the frequency position number f_id and the starting subframe number t_id.
  • the terminal calculates the number of the scrambling code sequence according to 10 * f_id + 1 + t_id.
  • the terminal After the feedback information is read from the DCI, if the second identifier-related information in the feedback information includes the first identifier-related information of the current terminal, the terminal determines that the uplink data transmission is successful this time, and starts transmitting the next uplink data or ends Transmission; if the second identifier-related information in the feedback information does not include the first identifier-related information of the current terminal, or the feedback information is not received, the terminal considers that this uplink data transmission has failed and retransmits this uplink data, or After backing off for a specified period of time, try to transmit the uplink data again.
  • a terminal sends uplink data and first identification-related information on a pre-configured first time-frequency resource, and the first identification-related information is used to identify the terminal.
  • the terminal receives feedback information sent by the access network device on the PDCCH.
  • the terminal provides the first identification-related information to the access network device by itself, and the access network device uses the first identification-related information provided by the terminal to perform HARQ feedback, thereby realizing the authorization-free uplink scheduling transmission HARQ feedback mechanism in the scenario.
  • FIG. 6 shows a flowchart of a feedback information transmission method provided by another exemplary embodiment. The method includes the following steps:
  • step 601 the access network device pre-configures the terminal with one or more time-frequency resources for the uplink-free scheduling.
  • step 501 For the implementation of this step, reference may be made to the description of step 501 above.
  • the terminal sends uplink data and first identification-related information on the first time-frequency resource.
  • the first time-frequency resource is a time-frequency resource pre-configured by the access network device, and the first identification-related information is used to identify the terminal.
  • step 502 For the implementation of this step, reference may be made to the description of step 502 above.
  • the access network device receives uplink data and first identification-related information sent by the terminal on a pre-configured first time-frequency resource, and the first identification-related information is used to identify the terminal.
  • step 604 the access network device sends scheduling information on the second time-frequency resource, and the scheduling information is carried by the PDCCH.
  • the scheduling information is used to indicate a PDSCH located at a third time-frequency resource.
  • the scheduling information also carries other information used to assist in receiving feedback information, such as a modulation and coding scheme (Modulation Coding Scheme, MCS), which is not limited in this application.
  • MCS Modulation Coding Scheme
  • the scheduling information is carried in DCI.
  • the access network device scrambles the CRC part of the DCI through the target scrambling code sequence; the access network device sends DCI to the terminal on the second time-frequency resource, and the DCI carries scheduling information, and the DCI is carried in On the PDCCH.
  • the access network device determines the target scrambling code sequence used for the current scrambling based on the configuration information of the scrambling code sequence. In other embodiments, the access network device determines the first scrambling code sequence based on the first time-frequency resource.
  • the target scrambling code sequence that is, the target scrambling code sequence used this time is dynamically calculated according to the time-frequency position of the first time-frequency resource. Illustratively, the access network device obtains the frequency position number f_id and the starting subframe number t_id of the first time-frequency resource.
  • the frequency position number f_id is, for example, a narrowband number, or a physical resource block (PRB) number; the access network device calculates the number of the target scrambling code sequence according to the frequency position number f_id and the starting subframe number t_id. For example, the access network device calculates the number of the target scrambling code sequence according to 10 * f_id + 1 + t_id.
  • PRB physical resource block
  • step 605 the terminal receives scheduling information on the second time-frequency resource, and the scheduling information is used to indicate a PDSCH located on the third time-frequency resource.
  • the terminal descrambles the CRC part of the DCI using the target scrambling code sequence on the second time-frequency resource to obtain a DCI containing scheduling information.
  • the terminal receives the scrambling code sequence configured by the access network device in advance.
  • the access network device configures the terminal with a scrambling code sequence through high-level signaling; then, the terminal determines the target scrambling code sequence used for the current descrambling according to the configuration information of the scrambling code sequence.
  • the terminal determines the target scrambling code sequence according to the first time-frequency resource, that is, dynamically calculates the target scrambling code sequence used this time according to the time-frequency position of the first time-frequency resource.
  • the terminal obtains a frequency position number f_id and a starting subframe number t_id of the first time-frequency resource.
  • the frequency position number f_id is, for example, a narrowband number or a physical resource block (PRB) number;
  • the terminal calculates the number of the target scrambling code sequence according to the frequency position number f_id and the starting subframe number t_id.
  • the terminal calculates the number of the target scrambling code sequence according to 10 * f_id + 1 + t_id.
  • the access network device sends feedback information to the terminal on the third time-frequency resource.
  • the feedback information includes second identification-related information, and the feedback information is carried by the PDSCH.
  • step 607 the terminal receives feedback information sent by the access network device on the third time-frequency resource.
  • the terminal After the feedback information is obtained from the PDSCH, if the second identifier-related information in the feedback information includes the first identifier-related information of the current terminal, the terminal determines that the uplink data transmission is successful, and starts transmitting the next uplink data or ends the transmission. ; If the second identifier-related information in the feedback information does not include the first identifier-related information of the current terminal, or the feedback information is not received, the terminal considers that this uplink data transmission has failed, retransmit this uplink data, or back off After the specified time, try to transmit the uplink data again.
  • a terminal sends uplink data and first identification-related information on a pre-configured first time-frequency resource.
  • the terminal receives scheduling information on a second time-frequency resource of the PDCCH, and receives a PDSCH including feedback information on a third time-frequency resource according to the scheduling information.
  • the feedback information includes second identification-related information, and the second identification-related information is used to identify a terminal that has successfully transmitted data on the first time-frequency resource.
  • the terminal provides the first identification-related information to the access network device by itself, and the access network device uses the first identification-related information provided by the terminal to perform HARQ feedback, thereby achieving the authorization-free uplink scheduling transmission HARQ feedback mechanism in the scenario.
  • this embodiment can transmit a larger amount of feedback information from the access network device to the terminal.
  • FIG. 7 shows a flowchart of a feedback information transmission method according to another exemplary embodiment.
  • the method selectively carries feedback information in a PDCCH or a PDSCH. The method includes the following steps:
  • step 701 the access network device pre-configures the terminal with one or more time-frequency resources for the unlicensed uplink scheduling.
  • step 501 For the implementation of this step, reference may be made to the description of step 501 above.
  • step 702 the terminal sends uplink data and first identification-related information on the first time-frequency resource, and the first identification-related information is used to identify the terminal.
  • step 502 For the implementation of this step, reference may be made to the description of step 502 above.
  • the access network device receives the uplink data and the first identification-related information sent by the terminal on the first time-frequency resource, and the first identification-related information is used to identify the terminal.
  • step 503 For the implementation of this step, reference may be made to the description of step 503 above.
  • the access network device dynamically selects to carry the feedback information on the PDCCH or PDSCH.
  • the dynamic selection may be determined according to the available resources of the PDCCH and the PDSCH. For example, if the PDCCH is idle, the feedback information is selected to be carried on the PDCCH; if the PDSCH is relatively idle, the feedback information is selected to be carried on the PDCCH.
  • the dynamic selection may also be determined according to the data amount of the feedback information. For example, when the data amount of the feedback information is less than the threshold, the feedback information is selected to be carried on the PDCCH; when the data amount of the feedback information is greater than the threshold, the feedback information is selected to be carried on the PDSCH.
  • the dynamic selection may also be determined according to the data type included in the feedback information. For example, when the feedback information includes only the second identification-related information, the feedback information is selected to be carried on the PDCCH. When the feedback information includes the second identification-related information and other information, the selection is performed. The feedback information is carried on the PDSCH.
  • this embodiment further adds a preset bit to the DCI.
  • the preset bit is the first value, it is used to indicate that the feedback information is carried on the PDCCH; when the preset bit is the second value, it is used to indicate that the feedback information is carried on the PDSCH.
  • the preset bit is 1 bit specified in the DCI, the first value is 1 and the second value is 0, or the first value is 0 and the second value is 1.
  • the access network device sends the DCI on the second time-frequency resource.
  • the DCI includes preset bits and feedback information, and the preset bit is a first value.
  • a DCI is generated that carries a predetermined bit and feedback information, and the preset bit has a first value.
  • the access network device sends feedback information to the terminal on the second time-frequency resource, and the feedback information is carried on the PDCCH.
  • the access network device scrambles the CRC part of the DCI by using the target scrambling code sequence, and sends the DCI to the terminal on the second time-frequency resource.
  • the access network device determines the target scrambling code sequence used for the current scrambling based on the configuration information of the scrambling code sequence. In other embodiments, the access network device determines the first scrambling code sequence based on the first time-frequency resource.
  • the target scrambling code sequence that is, the target scrambling code sequence used this time is dynamically calculated according to the time-frequency position of the first time-frequency resource. Illustratively, the access network device obtains a frequency position number f_id and a starting subframe number t_id of the first time-frequency resource.
  • the frequency position number f_id is, for example, a narrowband number, or a physical resource block (PRB) number; the access network device calculates the number of the target scrambling code sequence according to the frequency position number f_id and the starting subframe number t_id. For example, the access network device calculates the number of the target scrambling code sequence according to 10 * f_id + 1 + t_id.
  • PRB physical resource block
  • step 705 when the preset bit is the first value, the terminal obtains feedback information from the DCI.
  • the terminal descrambles the CRC part of the DCI using the target scrambling code sequence on the second time-frequency resource to obtain the DCI including the feedback information.
  • the terminal determines the target scrambling code sequence in the same or corresponding manner as the access network device.
  • the terminal receives the scrambling code sequence configured by the access network device in advance.
  • the access network device configures the terminal with a scrambling code sequence through high-level signaling; then, the terminal determines the target scrambling code sequence used for the current descrambling according to the configuration information of the scrambling code sequence.
  • the terminal determines the target scrambling code sequence according to the first time-frequency resource, that is, dynamically calculates the target scrambling code sequence used this time according to the time-frequency position of the first time-frequency resource.
  • the terminal obtains a frequency position number f_id and a starting subframe number t_id of the first time-frequency resource.
  • the frequency position number f_id is, for example, a narrowband number or a PRB number.
  • the terminal calculates the number of the target scrambling code sequence according to the frequency position number f_id and the starting subframe number t_id.
  • the terminal calculates the number of the target scrambling code sequence according to 10 * f_id + 1 + t_id.
  • the access network device sends DCI on the second time-frequency resource.
  • the DCI includes preset bits and scheduling information.
  • the DCI is carried by the PDCCH, and the preset bit is a second value.
  • a DCI is generated that carries a predetermined bit and scheduling information, and the preset bit has a second value.
  • the scheduling information is used to indicate a PDSCH located on the PDSCH for the third time-frequency resource.
  • the access network device sends scheduling information to the terminal on the second time-frequency resource, and the scheduling information is carried on the PDCCH.
  • the access network device scrambles the CRC part of the DCI by using the target scrambling code sequence, and sends the DCI to the terminal on the second time-frequency resource.
  • step 707 when the preset bit is the second value, the terminal obtains scheduling information from the DCI, and the scheduling information is used to indicate a PDSCH located at a third time-frequency resource.
  • the terminal descrambles the CRC part of the DCI by using the target scrambling code sequence on the second time-frequency resource to obtain a DCI including scheduling information.
  • step 708 the access network device sends feedback information on the third time-frequency resource, and the feedback information is carried by the PDSCH.
  • step 709 the terminal receives feedback information on the third time-frequency resource.
  • the terminal After the feedback information is obtained from the PDSCH, if the second identifier-related information in the feedback information includes the first identifier-related information of the current terminal, the terminal determines that the uplink data transmission is successful, and starts transmitting the next uplink data or ends the transmission. ; If the second identifier-related information in the feedback information does not include the first identifier-related information of the current terminal, or the feedback information is not received, the terminal considers that this uplink data transmission has failed, retransmit this uplink data, or back off After the specified time, try to transmit the uplink data again.
  • steps 704-705 and steps 706-710 are two different execution branches. In a single feedback process, only steps 704-705 or steps 706-709 may be performed.
  • a terminal sends uplink data and first identification-related information on a pre-configured first time-frequency resource.
  • the terminal determines, according to the bit and the feedback information, a terminal that has successfully transmitted data on the first time-frequency resource.
  • the terminal provides the first identification-related information to the access network device by itself, and the access network device uses the first identification-related information provided by the terminal to perform HARQ feedback, thereby realizing the authorization-free uplink scheduling transmission HARQ feedback mechanism in the scenario.
  • the feedback information is carried in the PDCCH or PDSCH by using a dynamic selection method.
  • the access network device can more flexibly select a more suitable feedback information transmission method according to the actual transmission situation, which improves the feedback information when it is sent. flexibility.
  • the feedback information includes the second identification-related information for example.
  • the feedback information sent by the access network device to the terminal further includes: transmitting auxiliary information.
  • the transmission auxiliary information includes, but is not limited to, at least one of the following information:
  • the first indication information of the terminal corresponding to the successful data transmission is used to instruct the establishment of an RRC connection, so that the terminal achieves more reliable data transmission;
  • the second indication information of the terminal corresponding to the data transmission failure is used to indicate a backoff time setting range when retransmitting uplink data, so that the terminal does not affect other terminals that successfully send data during the backoff time.
  • Uplink data sending process
  • the transmission assistance information is used to assist the target terminal in achieving subsequent uplink data transmission with a higher success rate in the subsequent transmission process.
  • the target terminal refers to a terminal that performs data transmission on the first time-frequency resource. This embodiment does not limit the specific content and form of the transmission auxiliary information.
  • the embodiments of the present disclosure further include transmission assistance information in the feedback information to adjust subsequent transmission parameters of a terminal that has successfully transmitted data or a terminal that has failed to transmit data, thereby improving the efficiency and reliability of uplink data transmission.
  • the access network device may dynamically select one of two feedback information transmission modes according to the data type in the feedback information.
  • the feedback information includes only the second identification-related information
  • the feedback information transmission method shown in FIG. 5 is adopted; when the feedback information includes both the second identification-related information and the auxiliary transmission information, the feedback shown in FIG. 6 is adopted
  • Information transmission method is adopted.
  • Fig. 8 is a flow chart showing another method for transmitting feedback information according to an exemplary embodiment. The method includes the following steps:
  • step 801 the access network device pre-configures the terminal with one or more time-frequency resources for the uplink-free scheduling.
  • step 501 For the implementation of this step, reference may be made to the description of step 501 above.
  • step 802 the terminal sends uplink data and first identification-related information on the first time-frequency resource, and the first identification-related information is used to identify the terminal.
  • step 502 For the implementation of this step, reference may be made to the description of step 502 above.
  • the access network device receives the uplink data and the first identification-related information sent by the terminal on the first time-frequency resource, and the first identification-related information is used to identify the terminal.
  • step 503 For the implementation of this step, reference may be made to the description of step 503 above.
  • the access network device In step 804, the access network device generates feedback information, and the feedback information includes: second identifier-related information, or second identifier-related information and transmission assistance information.
  • the access network device carries the feedback information on the PDCCH or PDSCH according to the data type contained in the feedback information.
  • the feedback information includes only the second identification-related information, selecting to carry the feedback information on the PDCCH;
  • the feedback information when the feedback information includes both the second identification-related information and the transmission auxiliary information, the feedback information is selected to be carried on the PDSCH.
  • This embodiment further adds a preset bit to the DCI.
  • the preset bit is the first value, it is used to indicate that the feedback information is carried on the PDCCH, and the feedback information includes only the second identification-related information; when the preset bit is the second value, it is used to indicate that the feedback information is carried In the PDSCH, the feedback information includes both the second identification-related information and the transmission assistance information.
  • the preset bit is 1 bit specified in the DCI, and the first value is 1 and the second value is 0.
  • the access network device sends DCI on the second time-frequency resource.
  • the DCI includes preset bits and feedback information, the preset bits are a first value, and the feedback information includes second identification-related information.
  • a DCI is generated that carries a predetermined bit and feedback information, and the preset bit has a first value.
  • the access network device sends feedback information to the terminal on the second time-frequency resource, and the feedback information is carried on the PDCCH.
  • the access network device scrambles the CRC part of the DCI by using the target scrambling code sequence, and sends the DCI to the terminal on the second time-frequency resource.
  • the access network device determines the target scrambling code sequence used for the current scrambling based on the configuration information of the scrambling code sequence. In other embodiments, the access network device determines the first scrambling code sequence based on the first time-frequency resource.
  • the target scrambling code sequence that is, the target scrambling code sequence used this time is dynamically calculated according to the time-frequency position of the first time-frequency resource. Illustratively, the access network device obtains the frequency position number f_id and the starting subframe number t_id of the first time-frequency resource.
  • the frequency position number f_id is, for example, a narrowband number, or a physical resource block (PRB) number; the access network device calculates the number of the target scrambling code sequence according to the frequency position number f_id and the starting subframe number t_id. For example, the access network device calculates the number of the target scrambling code sequence according to 10 * f_id + 1 + t_id.
  • PRB physical resource block
  • step 806 when the preset bit is the first value, the terminal obtains feedback information from the DCI.
  • the terminal descrambles the CRC part of the DCI using the target scrambling code sequence on the second time-frequency resource to obtain the DCI including the feedback information.
  • the terminal determines the target scrambling code sequence in the same or corresponding manner as the access network device.
  • the terminal receives the scrambling code sequence configured by the access network device in advance.
  • the access network device configures the scrambling code sequence for the terminal through high-level signaling; then, the terminal determines the target scrambling code sequence used for this descrambling according to the configuration information of the scrambling code sequence.
  • the terminal determines the target scrambling code sequence according to the first time-frequency resource, that is, dynamically calculates the target scrambling code sequence used this time according to the time-frequency position of the first time-frequency resource.
  • the terminal obtains a frequency position number f_id and a starting subframe number t_id of the first time-frequency resource.
  • the frequency position number f_id is, for example, a narrowband number or a PRB number.
  • the terminal calculates the number of the target scrambling code sequence according to the frequency position number f_id and the starting subframe number t_id.
  • the terminal calculates the number of the target scrambling code sequence according to 10 * f_id + 1 + t_id.
  • the access network device sends DCI on the second time-frequency resource.
  • the DCI includes a preset bit and scheduling information, and the preset bit is a second value.
  • a DCI is generated that carries a predetermined bit and scheduling information, and the preset bit has a second value.
  • the scheduling information is used to indicate a PDSCH located at a third time-frequency resource.
  • the access network device sends scheduling information to the terminal on the second time-frequency resource, and the scheduling information is carried on the PDCCH.
  • the access network device scrambles the CRC part of the DCI by using the target scrambling code sequence, and sends the DCI to the terminal on the second time-frequency resource.
  • step 808 when the preset bit is the second value, the terminal obtains scheduling information from the DCI, and the scheduling information is used to indicate a PDSCH located at a third time-frequency resource.
  • the terminal descrambles the CRC part of the DCI by using the target scrambling code sequence on the second time-frequency resource to obtain a DCI including scheduling information.
  • the access network device sends feedback information on the third time-frequency resource, and the feedback information is carried by the PDSCH.
  • the feedback information includes second identification-related information and transmission assistance information.
  • step 810 the terminal receives feedback information on the third time-frequency resource.
  • the terminal After the feedback information is obtained from the PDSCH, if the second identifier-related information in the feedback information includes the first identifier-related information of the current terminal, the terminal determines that the uplink data transmission is successful, and starts transmitting the next uplink data or ends the transmission. ; If the second identifier-related information in the feedback information does not include the first identifier-related information of the current terminal, or the feedback information is not received, the terminal considers that this uplink data transmission has failed, retransmit this uplink data, or back off After the specified time, try to transmit the uplink data again.
  • the terminal may optionally perform at least one of the following steps:
  • the transmission auxiliary information includes the time advance adjustment amount of the terminal corresponding to the successful data transmission, and the terminal's current uplink data transmission is successful, adjust the next uplink data transmission time according to the time advance adjustment amount;
  • the transmission auxiliary information includes the power control parameter of the terminal corresponding to the successful transmission and the terminal's current uplink data transmission is successful, adjust the transmission power of the next uplink data according to the power control parameter;
  • the transmission auxiliary information includes the first indication information of the terminal corresponding to the successful data transmission, and the uplink data transmission of the terminal succeeds, establish an RRC connection with the access network device according to the first indication information, and use the established RRC connection Perform the next data transmission;
  • the transmission auxiliary information includes the second instruction information of the terminal corresponding to the data transmission failure, and the terminal's current uplink data transmission fails, perform backoff according to the backoff time setting range in the second instruction information, and try again after the backoff ends. Retransmit uplink data;
  • the transmission auxiliary information includes the time advance adjustment amount of the terminal corresponding to the data transmission failure, and the terminal's current uplink data transmission fails, adjust the time to send the next uplink data according to the time advance adjustment amount;
  • the transmission auxiliary information includes the power increase parameter of the terminal corresponding to the data transmission failure, and the terminal's current uplink data transmission fails, the transmission power of the next uplink data is adjusted according to the power increase parameter.
  • steps 804-805 and 806-810 are two different execution branches. In a single feedback process, only steps 804-805 or steps 806-810 may be performed.
  • a terminal sends uplink data and first identification-related information on a pre-configured first time-frequency resource.
  • the terminal determines, according to the bit and the feedback information, a terminal that has successfully transmitted data on the first time-frequency resource.
  • the terminal provides the first identification-related information to the access network device by itself, and the access network device uses the first identification-related information provided by the terminal to perform HARQ feedback, thereby realizing the authorization-free uplink scheduling transmission HARQ feedback mechanism in the scenario.
  • the feedback information also includes transmission assistance information, which is used to adjust subsequent transmission parameters of a terminal that has successfully transmitted data or a terminal that has failed to transmit data, thereby improving the efficiency of uplink data transmission.
  • Fig. 9 is a block diagram of a feedback information transmission device according to an exemplary embodiment.
  • the device may implement part or all of uplink data transmission through software, hardware, or a combination of both.
  • the device may include:
  • a first sending module 901 is configured to send uplink data and first identification-related information to an access network device on a first time-frequency resource.
  • the first time-frequency resource is a time-frequency resource pre-configured by the access network device. -Identification related information is used to identify the terminal;
  • a first receiving module 903 is configured to receive feedback information sent by an access network device on a target channel.
  • the feedback information includes second identifier-related information, and the second identifier-related information is used to identify that data transmission is successful on the first time-frequency resource.
  • the target channel includes a PDCCH and / or a PDSCH.
  • the first identification-related information includes: identification information of the terminal; or, some bits in the uplink data; or partial bits in the identification information of the terminal; or, a function that maps the identification information of the terminal through a function Value; or, a terminal-generated random number.
  • the feedback information further includes transmission assistance information
  • the transmission assistance information is information used to assist in transmitting subsequent uplink data.
  • the transmission assistance information includes at least one of the following information: an amount of time advance adjustment of the terminal corresponding to the successful data transmission; a power control parameter of the terminal corresponding to the successful data transmission; An instruction information, the first instruction information is used to indicate the RRC connection; the second instruction information of the terminal corresponding to the data transmission failure, and the second instruction information is used to indicate the backoff time setting range when the uplink data is retransmitted; data transmission The amount of time adjustment of the terminal corresponding to the failure; the power ramping parameter of the terminal corresponding to the data transmission failure.
  • the first receiving module 903 is configured to receive feedback information sent by an access network device on a second time-frequency resource, and the feedback information is carried by a PDCCH.
  • the apparatus provided in this embodiment further includes: a first processing module 902 configured to descramble a CRC part of the DCI using a target scrambling code sequence on a second time-frequency resource, and obtain a message containing feedback information. DCI.
  • the first receiving module 903 is configured to receive scheduling information on the second time-frequency resource, the scheduling information is used to indicate a PDSCH located on the third time-frequency resource, and the scheduling information is carried by the PDCCH;
  • the first receiving module 903 is configured to receive feedback information sent by an access network device on a third time-frequency resource, and the feedback information is carried by the PDSCH.
  • the first processing module 902 is configured to descramble the CRC part of the DCI using the target scrambling code sequence on the second time-frequency resource to obtain a DCI including scheduling information.
  • the first receiving module 903 is configured to receive DCI on a second time-frequency resource, the DCI includes a preset bit, and the DCI is carried by the PDCCH;
  • the first receiving module 903 is configured to obtain feedback information from the DCI when the preset bit is a first value
  • the first receiving module 903 is configured to obtain scheduling information from the DCI when the preset bit is the second value, and the scheduling information is used to indicate a PDSCH located on a third time-frequency resource; and receive on the third time-frequency resource.
  • the feedback information sent by the access network device is carried by the PDSCH.
  • the feedback information when the preset bit is the second value, the feedback information further includes transmission assistance information, and the transmission assistance information is information used to assist in transmitting subsequent uplink data.
  • the first processing module 902 is configured to descramble the CRC part of the DCI by using the target scrambling code sequence on the second time-frequency resource to obtain a DCI including a preset bit.
  • the first receiving module 903 is configured to receive a target scrambling code sequence configured by an access network device; or the first processing module 902 is configured to determine a target scrambling code according to a first time-frequency resource. sequence.
  • the first processing module 902 is configured to obtain a frequency position number f_id and a starting sub-frame number t_id of the first time-frequency resource; Get the number of the scrambling code sequence.
  • the feedback information transmission device sends uplink data and first identification-related information on a pre-configured first time-frequency resource through a terminal.
  • the terminal determines, according to the bit and the feedback information, a terminal that has successfully transmitted data on the first time-frequency resource.
  • the terminal provides the first identification-related information to the access network device by itself, and the access network device uses the first identification-related information provided by the terminal to perform HARQ feedback, thereby realizing the authorization-free uplink scheduling transmission HARQ feedback mechanism in the scenario.
  • Fig. 12 is a block diagram of a feedback information transmission device according to an exemplary embodiment.
  • the device may implement part or all of uplink data transmission through software, hardware, or a combination of both.
  • the device may include:
  • the second receiving module 1001 is configured to receive uplink data and first identifier-related information sent by the terminal on a first time-frequency resource.
  • the first time-frequency resource is a time-frequency resource pre-configured by the access network device, and the first identifier is related. Information is used to identify the terminal;
  • the second sending module 1003 is configured to send feedback information on the target channel, the feedback information includes second identification-related information, and the second identification-related information is used to identify a terminal that successfully transmitted data on the first time-frequency resource;
  • the target channel includes a PDCCH and / or a PDSCH.
  • the first identification-related information includes: identification information of the terminal; or, some bits in the uplink data; or partial bits in the identification information of the terminal; or, a function that maps the identification information of the terminal through a function Value; or, a terminal-generated random number.
  • the feedback information further includes transmission assistance information
  • the transmission assistance information is information used to assist in transmitting subsequent uplink data.
  • the transmission assistance information includes at least one of the following information: an amount of time advance adjustment of the terminal corresponding to the successful data transmission; a power control parameter of the terminal corresponding to the successful data transmission; An indication information, the first indication information is used to instruct the establishment of an RRC connection; the second indication information of the terminal corresponding to the data transmission failure, and the second indication information is used to indicate the backoff time setting range when the uplink data is retransmitted; the data The amount of time adjustment of the terminal corresponding to the transmission failure; the power ramping parameter of the terminal corresponding to the data transmission failure.
  • the second sending module 1003 is configured to send feedback information on the second time-frequency resource, and the feedback information is carried by the PDCCH.
  • the apparatus provided in this embodiment further includes: a second processing module 1002 configured to scramble a CRC part of the DCI by using a target scrambling code sequence;
  • the second sending module 1003 is configured to send DCI to the terminal on the second time-frequency resource, the DCI carries feedback information, and the DCI is carried by the PDCCH.
  • the second sending module 1003 is configured to send scheduling information on the second time-frequency resource, the scheduling information is used to indicate a PDSCH located on the third time-frequency resource, and the scheduling information is carried by the PDCCH;
  • the second sending module 1003 is configured to send feedback information on the third time-frequency resource, and the feedback information is carried by the PDSCH.
  • the second processing module 1002 is configured to scramble a CRC part of the DCI by using a target scrambling code sequence
  • the second sending module 1003 is configured to send DCI to the terminal on the second time-frequency resource.
  • the DCI carries scheduling information, and the scheduling information is carried by the PDCCH.
  • the second sending module 1003 is configured to send downlink control information DCI on the second time-frequency resource.
  • the DCI includes preset bits and feedback information.
  • the DCI is carried by the PDCCH and the preset bits are Is the first value;
  • the second sending module 1003 is configured to send DCI on a second time-frequency resource.
  • the DCI includes preset bits and scheduling information.
  • the DCI is carried by the PDCCH.
  • the preset bits are a second value.
  • the scheduling information is used to indicate PDSCH located in the third time-frequency resource; the access network device sends feedback information on the third time-frequency resource, and the feedback information is carried by the PDSCH.
  • the feedback information when the preset bit is the second value, includes second identification-related information and transmission assistance information, and the transmission assistance information is information used to assist in transmitting subsequent uplink data.
  • the second processing module 1002 is configured to scramble the CRC part of the DCI by the target scrambling code sequence
  • the second sending module 1003 is configured to send the scrambled DCI to the terminal on the second time-frequency resource.
  • the second processing module 1002 is configured to configure the target scrambling code sequence to the terminal; or the second processing module 1002 is configured to determine the target scrambling code sequence according to the first time-frequency resource.
  • the second processing module is configured to obtain a frequency position number f_id and a starting subframe number t_id of the first time-frequency resource; and calculate according to the frequency position number f_id and the starting subframe number t_id. The number of the first scrambling code sequence.
  • the feedback information transmission device sends uplink data and first identification-related information on a pre-configured first time-frequency resource through a terminal.
  • the terminal determines, according to the bit and the feedback information, a terminal that has successfully transmitted data on the first time-frequency resource.
  • the terminal provides the first identification-related information to the access network device by itself, and the access network device uses the first identification-related information provided by the terminal to perform HARQ feedback, thereby implementing the uplink-free scheduling transmission.
  • HARQ feedback mechanism in the scenario.
  • the feedback information also includes transmission assistance information, which is used to adjust subsequent transmission parameters of a terminal that has successfully transmitted data or a terminal that has failed to transmit data, thereby improving the efficiency of uplink data transmission.
  • the devices provided in the above embodiments only use the division of the above functional modules as an example to explain the transmission of feedback information.
  • the above functions may be allocated by different functional modules according to actual needs. That is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • Fig. 11 is a block diagram of a device 1100 for transmitting feedback information according to an exemplary embodiment.
  • the feedback information transmission device 1100 may be a terminal or an access network device.
  • the feedback information transmission 1100 may include a processor 1101, a receiver 1102, a transmitter 1103, and a memory 1104.
  • the receiver 1102, the transmitter 1103, and the memory 1104 are connected to the processor 1101 through a bus, respectively.
  • the processor 1101 includes one or more processing cores, and the processor 1101 executes a method executed by a terminal or a base station in a feedback information transmission method provided by an embodiment of the present disclosure by running software programs and modules.
  • the memory 1104 may be used to store software programs and modules. Specifically, the memory 1104 may store an operating system 11041 and an application program module 11042 required for at least one function.
  • the receiver 1102 is configured to receive communication data sent by other devices, and the transmitter 1103 is configured to send communication data to other devices.
  • FIG. 12 shows a block diagram of a system 1200 for transmitting feedback information according to an exemplary embodiment of the present application.
  • the system includes an access network device 1201 and a terminal 1202.
  • the access network device and the terminal 1202 are configured to execute the feedback information transmission method shown in any one of FIG. 4 to FIG. 8.
  • a computer-readable storage medium is also provided.
  • the computer-readable storage medium is a non-volatile computer-readable storage medium, and the computer-readable storage medium stores a computer program therein.
  • the computer program is executed by the processing component, the feedback information transmission method provided by the foregoing embodiments of the present disclosure can be implemented.
  • An embodiment of the present disclosure also provides a computer program product.
  • the computer program product stores instructions that, when run on a computer, enable the computer to execute the feedback information transmission method provided by the embodiment of the present disclosure.
  • An embodiment of the present disclosure further provides a chip, which includes a programmable logic circuit and / or program instructions. When the chip runs, the chip can execute the feedback information transmission method provided by the embodiment of the present disclosure.

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Abstract

本公开提供了一种反馈信息传输方法、装置、设备及系统，属于通信领域。所述方法包括：终端在预配置的第一时频资源上向接入网设备发送上行数据和第一标识相关信息；终端在目标信道上接收接入网设备发送的反馈信息，反馈信息包括第二标识相关信息，第二标识相关信息用于标识在第一时频资源上数据传输成功的终端；其中，目标信道包括：PDCCH和/或PDSCH。本公开解决了终端采用免授权上行调度向基站发送上行数据时，由于不存在随机接入过程所分配的C-RNTI，基站无法向终端传输HARQ反馈信息的技术问题，实现了免授权上行调度传输场景下的HARQ反馈机制。

Description

反馈信息传输方法、装置、设备及系统 技术领域
本公开涉及通信领域，特别涉及一种反馈信息传输方法、装置、设备及系统。
背景技术
在长期演进(Long-Term Evolution，LTE)系统中，采用混合自动重传请求(Hybrid Automatic Repeat reQuest，HARQ)机制来保证数据传输的成功。
在相关技术中，终端通过随机接入过程中的四个消息步骤接入基站。在随机接入过程中，终端会获取基站配置的小区无线网络临时识别(Cell Radio-Network Temporaty Identifier,C-RNTI)。终端在获取到基站分配的上行数据传输资源后，在上行数据传输资源上向基站发送上行数据。然后，基站在物理下行控制信道(Physical Downlink Control Channel，PDCCH)上向终端发送HARQ反馈信息，该HARQ反馈信息包括确认反馈(Acknowledgement，ACK)和/或否认反馈(Negative Acknowledgement，NACK)。该HARQ反馈信息采用终端的C-RNTI进行加扰传输。
而在5G新空口(New Radio，NR)系统中，终端可以采用免授权上行调度向基站发送上行数据，此时终端和基站之间不需要进行随机接入过程，因此终端不会获取到基站分配的C-RNTI，因此基站也无法通过C-RNTI向终端加扰传输HARQ反馈信息，导致尚不存在免授权上行调度时的HARQ解决方案。
发明内容
本公开实施例提供了一种反馈信息传输方法、装置、设备及系统，可以解决终端采用免授权上行调度向基站发送上行数据时，由于不存在随机接入过程所分配的C-RNTI，因此基站无法向终端传输HARQ反馈信息的技术问题。所述技术方案如下：
根据本公开实施例的第一方面，提供了一种反馈信息传输方法，方法包括：
终端在第一时频资源上向接入网设备发送上行数据和第一标识相关信息， 第一时频资源是接入网设备预配置的时频资源，第一标识相关信息用于标识终端；
终端在目标信道上接收接入网设备发送的反馈信息，反馈信息包括第二标识相关信息，第二标识相关信息用于标识在第一时频资源上数据传输成功的终端；
其中，目标信道包括PDCCH和/或PDSCH。
可选地，第一标识相关信息，包括：终端的标识信息；或，上行数据中的部分比特；或，终端的标识信息中的部分比特；或，将终端的标识信息通过函数映射后的函数值；或，终端生成的随机数。
在一些可能的实施方式中，反馈信息还包括传输辅助信息，传输辅助信息是用于辅助传输后续上行数据的信息。
可选地，传输辅助信息包括如下信息中的至少一项：
数据传输成功所对应的终端的时间提前调整量；
数据传输成功所对应的终端的功率控制参数；
数据传输成功所对应的终端的第一指示信息，第一指示信息用于指示建立无线资源控制(Radio Resource Control，RRC)连接；
数据传输失败所对应的终端的第二指示信息，第二指示信息用于指示重传上行数据时的退避(backoff)时间设置范围；
数据传输失败所对应的终端的时间提前调整量；
数据传输失败所对应的终端的功率递增(power ramping)参数。
在一些可能的实施方式中，终端在目标信道上接收接入网设备发送的反馈信息，包括：
终端在第二时频资源上接收接入网设备发送的反馈信息，反馈信息由PDCCH承载。
在一些可能的实施方式中，终端在第二时频资源上接收接入网设备发送的反馈信息，包括：
终端在第二时频资源上使用目标扰码序列解扰(Downlink Control Information，DCI)的循环冗余校验(Cyclic Redundancy Check，CRC)部分，得到包含反馈信息的DCI。
在一些可能的实施方式中，终端在目标信道上接收接入网设备发送的反馈信息，包括：
终端在第二时频资源上接收调度信息，调度信息用于指示位于第三时频资源的PDSCH，调度信息由PDCCH承载；
终端在第三时频资源上接收接入网设备发送的反馈信息，反馈信息由PDSCH承载。
在一些可能的实施方式中，终端在第二时频资源上接收调度信息，包括：
终端在第二时频资源上使用目标扰码序列解扰DCI的CRC部分，得到包含调度信息的DCI。
在一些可能的实施方式中，终端在目标信道上接收接入网设备发送的反馈信息，包括：
终端在第二时频资源上接收DCI，DCI中包括预设比特位，DCI由PDCCH承载；
当终端在预设比特位是第一取值时，从DCI中获取反馈信息；
当终端在预设比特位是第二取值时，从DCI中获取调度信息，调度信息用于指示位于第三时频资源的PDSCH；在第三时频资源上接收接入网设备发送的反馈信息，反馈信息由PDSCH承载。
在一些可能的实施方式中，在预设比特位是第二取值时，反馈信息还包括传输辅助信息，传输辅助信息是用于辅助传输后续上行数据的信息。
在一些可能的实施方式中，终端在第二时频资源上接收DCI，包括：
终端在第二时频资源上使用目标扰码序列解扰DCI的CRC部分，得到包含预设比特位的DCI。
在一些可能的实施方式中，该方法还包括:
终端接收接入网设备配置的目标扰码序列；或者，终端根据第一时频资源确定目标扰码序列。
在一些可能的实施方式中，终端根据第一时频资源确定目标扰码序列，包括：
终端获取第一时频资源的频率位置编号f_id和起始子帧编号t_id；
终端根据频率位置编号f_id和起始子帧编号t_id，计算得到目标扰码序列的编号。
根据本公开实施例的第二方面，提供了一种反馈信息传输方法，该方法包括：
接入网设备在第一时频资源上接收终端发送的上行数据和第一标识相关信息，第一时频资源是接入网设备预配置的时频资源，第一标识相关信息用于标识终端；
接入网设备在目标信道上发送反馈信息，反馈信息包括第二标识相关信息，第二标识相关信息用于标识在第一时频资源上数据传输成功的终端；
其中，目标信道包括PDCCH和/或PDSCH。
可选地，第一标识相关信息，包括：终端的标识信息；或，上行数据中的部分比特；或，终端的标识信息中的部分比特；或，将终端的标识信息通过函数映射后的函数值；或，终端生成的随机数。
在一些可能的实施方式中，反馈信息还包括传输辅助信息，传输辅助信息是用于辅助传输后续上行数据的信息。
可选地，传输辅助信息包括如下信息中的至少一项：数据传输成功所对应的终端的时间提前调整量；数据传输成功所对应的终端的功率控制参数；数据传输成功所对应的终端的第一指示信息，第一指示信息用于指示建立RRC连接；数据传输失败所对应的终端的第二指示信息，第二指示信息用于指示重传上行数据时的退避(backoff)时间设置范围；数据传输失败所对应的终端的时间提前调整量；数据传输失败所对应的终端的功率递增(power ramping)参数。
在一些可能的实施方式中，接入网设备在目标信道上发送反馈信息，包括：
接入网设备在第二时频资源上发送反馈信息，反馈信息由PDCCH承载。
在一些可能的实施方式中，接入网设备在第二时频资源上发送反馈信息，包括：
接入网设备通过目标扰码序列对DCI的CRC部分进行加扰；
接入网设备在第二时频资源上向终端发送DCI，DCI携带有反馈信息，DCI由PDCCH承载。
在一些可能的实施方式中，接入网设备在目标信道上接收接入网设备发送的反馈信息，包括：
接入网设备在第二时频资源上发送调度信息，调度信息用于指示位于第三时频资源的PDSCH，调度信息由PDCCH承载；
接入网设备在第三时频资源上发送反馈信息，反馈信息由PDSCH承载。
在一些可能的实施方式中，接入网设备在第二时频资源上发送调度信息，包括：
接入网设备通过目标扰码序列对DCI的CRC部分进行加扰；
接入网设备在第二时频资源上向终端发送DCI，DCI携带有调度信息，调度信息由PDCCH承载。
在一些可能的实施方式中，接入网设备在目标信道上发送反馈信息，包括：
接入网设备在第二时频资源上发送DCI，DCI中包括预设比特位和反馈信息，DCI由PDCCH承载，预设比特位是第一取值；
或者，
接入网设备在第二时频资源上发送DCI，DCI中包括预设比特位和调度信息，DCI由PDCCH承载，预设比特位是第二取值，调度信息用于指示位于第三时频资源的PDSCH；接入网设备在第三时频资源上发送反馈信息，反馈信息由PDSCH承载。
在一些可能的实施方式中，在预设比特位是第二取值时，反馈信息还包括传输辅助信息，传输辅助信息是用于辅助传输后续上行数据的信息。
在一些可能的实施方式中，接入网设备在第二时频资源上发送DCI，包括：
接入网设备通过目标扰码序列对DCI的CRC部分进行加扰；
接入网设备在第二时频资源上向终端发送加扰后的DCI。
在一些可能的实施方式中，该方法还包括:
接入网设备向终端配置目标扰码序列；或者，接入网设备根据第一时频资源确定目标扰码序列。
在一些可能的实施方式中，接入网设备根据第一时频资源确定目标扰码序列，包括：
接入网设备获取第一时频资源的频率位置编号f_id和起始子帧编号t_id；
接入网设备根据频率位置编号f_id和起始子帧编号t_id，计算得到目标扰码序列的编号。
根据本公开实施例的另一方面，提供了一种反馈信息传输装置，该装置包括：
第一发送模块，被配置为在第一时频资源上向接入网设备发送上行数据和第一标识相关信息，第一时频资源是接入网设备预配置的时频资源，第一标识相关信息用于标识终端；
第一接收模块，被配置为在目标信道上接收接入网设备发送的反馈信息， 反馈信息包括第二标识相关信息，第二标识相关信息用于标识在第一时频资源上数据传输成功的终端；
其中，目标信道包括PDCCH和/或PDSCH。
可选地，第一标识相关信息，包括：终端的标识信息；或，上行数据中的部分比特；或，终端的标识信息中的部分比特；或，将终端的标识信息通过函数映射后的函数值；或，终端生成的随机数。
在一些可能的实施方式中，反馈信息还包括传输辅助信息，传输辅助信息是用于辅助传输后续上行数据的信息。
可选地，传输辅助信息包括如下信息中的至少一项：数据传输成功所对应的终端的时间提前调整量；数据传输成功所对应的终端的功率控制参数；数据传输成功所对应的终端的第一指示信息，第一指示信息用于指示RRC连接；数据传输失败所对应的终端的第二指示信息，第二指示信息用于指示重传上行数据时的退避(backoff)时间设置范围；数据传输失败所对应的终端的时间提前调整量；数据传输失败所对应的终端的功率递增(power ramping)参数。
在一些可能的实施方式中，第一接收模块，被配置为在第二时频资源上接收接入网设备发送的反馈信息，反馈信息由PDCCH承载。
在一些可能的实施方式中，第一处理模块，被配置为在第二时频资源上使用目标扰码序列解扰DCI的CRC部分，得到包含反馈信息的DCI。
在一些可能的实施方式中，第一接收模块，被配置为在第二时频资源上接收调度信息，调度信息用于指示位于PDSCH的第三时频资源，调度信息由PDCCH承载；
第一接收模块，被配置为在第三时频资源上接收接入网设备发送的反馈信息，反馈信息由PDSCH承载。
在一些可能的实施方式中，该装置还包括第一处理模块，第一处理模块被配置为在第二时频资源上使用目标扰码序列解扰DCI的CRC部分，得到包含调度信息的DCI。
在一些可能的实施方式中，第一接收模块，被配置为在第二时频资源上接收DCI，DCI中包括预设比特位，DCI由PDCCH承载；
可选地，第一接收模块，被配置为在预设比特位是第一取值时，从DCI中获取反馈信息；
第一接收模块，被配置为在预设比特位是第二取值时，从DCI中获取调度 信息，调度信息用于指示位于第三时频资源的PDSCH；在第三时频资源上接收接入网设备发送的反馈信息，反馈信息由PDSCH承载。
在一些可能的实施方式中，在预设比特位是第二取值时，反馈信息还包括传输辅助信息，传输辅助信息是用于辅助传输后续上行数据的信息。
在一些可能的实施方式中，该装置还包括第一处理模块，第一处理模块被配置为在第二时频资源上使用目标扰码序列解扰DCI的CRC部分，得到包含预设比特位的DCI。
在一些可能的实施方式中，第一接收模块，被配置为接收接入网设备配置的目标扰码序列；或者，第一处理模块，被配置为根据第一时频资源确定目标扰码序列。
在一些可能的实施方式中，第一处理模块，被配置为获取第一时频资源的频率位置编号f_id和起始子帧编号t_id；根据频率位置编号f_id和起始子帧编号t_id，计算得到扰码序列的编号。
根据本公开实施例的另一方面，提供了一种反馈信息传输装置，该装置包括：
第二接收模块，被配置为在第一时频资源上接收终端发送的上行数据和第一标识相关信息，第一时频资源是接入网设备预配置的时频资源，第一标识相关信息用于标识终端；
第二发送模块，被配置为在目标信道上发送反馈信息，反馈信息包括第二标识相关信息，第二标识相关信息用于标识在第一时频资源上数据传输成功的终端；
其中，目标信道包括PDCCH和/或PDSCH。
可选地，第一标识相关信息，包括：终端的标识信息；或，上行数据中的部分比特；或，终端的标识信息中的部分比特；或，将终端的标识信息通过函数映射后的函数值；或，终端生成的随机数。
在一些可能的实施方式中，反馈信息还包括传输辅助信息，传输辅助信息是用于辅助传输后续上行数据的信息。
可选地，传输辅助信息包括如下信息中的至少一项：数据传输成功所对应的终端的时间提前调整量；数据传输成功所对应的终端的功率控制参数；数据传输成功所对应的终端的第一指示信息，第一指示信息用于指示建立RRC连 接；数据传输失败所对应的终端的第二指示信息，第二指示信息用于指示重传上行数据时的退避(backoff)时间设置范围；数据传输失败所对应的终端的时间提前调整量；数据传输失败所对应的终端的功率递增(power ramping)参数。
在一些可能的实施方式中，第二发送模块，被配置为在第二时频资源上发送反馈信息，反馈信息由PDCCH承载。
在一些可能的实施方式中，该装置还包括第二处理模块，第二处理模块被配置为通过目标扰码序列对DCI的CRC部分进行加扰；
第二发送模块，被配置为在第二时频资源上向终端发送DCI，DCI携带有反馈信息，DCI由PDCCH承载。
在一些可能的实施方式中，第二发送模块，被配置为在第二时频资源上发送调度信息，调度信息用于指示位于第三时频资源的PDSCH，调度信息由PDCCH承载；
第二发送模块，被配置为在第三时频资源上发送反馈信息，反馈信息由PDSCH承载。
在一些可能的实施方式中，第二处理模块，被配置为通过目标扰码序列对DCI的CRC部分进行加扰；
第二发送模块，被配置为在第二时频资源上向终端发送DCI，DCI携带有调度信息，调度信息由PDCCH承载。
在一些可能的实施方式中，第二发送模块，被配置为在第二时频资源上发送DCI，DCI中包括预设比特位和反馈信息，DCI由PDCCH承载，预设比特位是第一取值；
或者，
第二发送模块，被配置为在PDCCH的第二时频资源上发送DCI，DCI中包括预设比特位和调度信息，DCI由PDCCH承载，预设比特位是第二取值，调度信息用于指示位于第三时频资源的PDSCH；接入网设备在第三时频资源上发送反馈信息，反馈信息由PDSCH承载。
在一些可能的实施方式中，在预设比特位是第二取值时，反馈信息包括第二标识相关信息和传输辅助信息，传输辅助信息是用于辅助传输后续上行数据的信息。
在一些可能的实施方式中，第二处理模块，被配置为目标扰码序列对DCI的CRC部分进行加扰；
第二发送模块，被配置为在第二时频资源上向终端发送加扰后的DCI。
在一些可能的实施方式中，第二处理模块，被配置为向终端配置目标扰码序列；或者，第二处理模块，被配置为根据第一时频资源确定目标扰码序列。
在一些可能的实施方式中，第二处理模块，被配置为获取第一时频资源的频率位置编号f_id和起始子帧编号t_id；根据频率位置编号f_id和起始子帧编号t_id，计算得到第一扰码序列的编号。
根据本公开实施例的另一方面，提供了一种终端，该终端包括：
处理器；
与处理器相连的收发器；
用于存储处理器可执行指令的存储器；
其中，处理器被配置为加载并执行可执行指令以实现上述方面所述的反馈信息传输方法。
根据本公开实施例的另一方面，提供了一种接入网设备，该设备包括：
处理器；
与处理器相连的收发器；
用于存储处理器可执行指令的存储器；
其中，处理器被配置为加载并执行可执行指令以实现上述方面所述的反馈信息传输方法。
根据本公开实施例的另一方面，提供了一种计算机可读存储介质，该可读存储介质中存储有至少一条指令、至少一段程序、代码集或指令集，所述至少一条指令、所述至少一段程序、所述代码集或指令集由所述处理器加载并执行以实现上述方面所述的反馈信息传输方法。
本公开实施例提供的技术方案至少包括以下有益效果：
通过终端在预配置的第一时频资源上发送上行数据和第一标识相关信息，第一标识相关信息用于标识终端。接入网设备在预配置的第一时频资源上接收终端发送的上行数据和第一标识相关信息，并在目标信道上发送反馈信息，解决了终端采用免授权上行调度向基站发送上行数据时，由于不存在随机接入过程所分配的C-RNTI，基站无法向终端传输HARQ反馈信息的技术问题。达到 了在免授权上行调度传输过程中，由终端自行向接入网设备提供第一标识相关信息，接入网设备利用终端提供的第一标识相关信息进行HARQ反馈，实现了免授权上行调度传输场景下的HARQ反馈机制。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是LTE中基于竞争的随机接入过程的信令交互图；
图2是相关技术中在免授权上行调度传输的信令交互图；
图3是根据一示例性实施例示出的反馈信息传输方法所涉及到的实施环境的示意图；
图4是根据一示例性实施例示出的一种反馈信息传输方法的流程图；
图5是根据一示例性实施例示出的一种反馈信息传输方法的流程图；
图6是根据一示例性实施例示出的一种反馈信息传输方法的流程图；
图7是根据一示例性实施例示出的一种反馈信息传输方法的流程图；
图8是根据一示例性实施例示出的一种反馈信息传输方法的流程图；
图9是根据一示例性实施例示出的一种反馈信息传输装置的框图；
图10是根据一示例性实施例示出的一种反馈信息传输装置的框图；
图11是根据一示例性实施例示出的一种用于反馈信息传输的设备的框图；
图12是根据一示例性实施例示出的一种反馈信息传输系统的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
由于在5G NR系统中的物联网传输场景下，终端向基站每次传输的上行 数据的数据量比较小。如果遵循传统的LTE数据传输流程将会消耗较多的时延。示意性的，如图1所示，LTE系统中的随机接入过程分为四个步骤：第一步，用户设备(User Equipment，UE)随机选择一个前导序列，在随机接入信道(Random Access Channel，RACH)上向演进型基站(eNode B，eNB)发送；第二步，eNB在检测到有前导序列发送后，在下行向UE发送随机接入响应，随机接入响应中至少应包含以下信息，如所收到的前导序列的编号、定时调整信息、为该UE分配的上行资源位置指示信息和临时分配的C-RNTI；第三步，UE在收到随机接入响应后，根据其指示在分配的上行资源上发送消息3；第四步，eNB接收UE的消息3，并向接入成功的UE返回冲突解决消息。上述的随机接入过程将会带来巨大的信令开销。信令传输所占的资源将远远大于在物联网传输场景下所占的资源。因此针对这一场景，在5G NR系统中引入免授权上行调度，如图2所示。即终端醒来后，不需要做随机接入过程和接收基站的上行调度，可以自动在基站提前配置的上行传输资源上进行上行传输。该上行传输资源是免授权频谱上的传输资源。
当终端传输完上行数据后，需要了解当前的传输是否成功，需要相应的HARQ机制进行支持。LTE系统中的HARQ是通过用户专用的PDCCH来承载的，PDCCH内的DCI中的CRC由终端专用的C-RNTI进行加扰，UE通过判断DCI中的新数据指示(New-Date Indicator，NDI)是否翻转来判断此次传输是否成功。但是传统的HARQ机制无法适用于上述免授权上行调度中。其中一个原因是在免授权上行调度中，多个用户可能在相同的资源中传输资源，仅仅依赖NDI的翻转很难判断是其中哪个用户的数据传输成功；第二个原因是传统的HARQ反馈依赖于用户专用的C-RNTI加扰，其中C-RNTI是用户在随机接入过程中由接入网设备配置给用户的，但免授权调度省去了随机接入过程，因此无法依赖C-RNTI加扰承载HARQ的PDCCH。另外在免授权上行调度中，还需要指示一些额外的信息，比如对于成功传输上行数据的用户是否需要转换到连接态，以方便接收下行数据；对于没有成功传输上行数据的用户是否需要提供辅助信息，以方便下次的数据传输。因此，在免授权上行调度中，需要对HARQ机制进行重新设计。
为了解决上述问题，本公开实施例通过终端在免授权上行调度过程中发送上行数据时，同时向接入网设备提供第一标识相关信息，该第一标识相关信息用于标识该终端。然后，由接入网设备根据第一标识相关信息、该上行数据是 否传输成功来进行HARQ反馈。示意性的参考如下实施例：
图3示出了本申请一个实施例提供的移动通信系统的结构示意图。该移动通信系统可以是5G系统，又称NR系统。该移动通信系统包括：接入网设备301和终端302。
接入网设备301可以是基站。例如，基站可以是5G系统中采用集中分布式架构的基站(gNB)。当接入网设备301采用集中分布式架构时，通常包括集中单元(Central Unit，CU)和至少两个分布单元(Distributed unit，DU)。集中单元中设置有分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层、无线链路层控制协议(Radio Link Control，RLC)层、媒体访问控制(Media Access Control，MAC)层的协议栈；分布单元中设置有物理(Physical，PHY)层协议栈，本申请实施例对接入网设备301的具体实现方式不加以限定。可选地，接入网设备还可以包括家庭基站(Home eNB，HeNB)、中继(Relay)、微微基站Pico等。
接入网设备301和终端302通过无线空口建立无线连接。可选地，该无线空口是基于第五代移动通信网络技术(5G)标准的无线空口，比如该无线空口是新空口(New Radio，NR)；或者，该无线空口也可以是基于5G的更下一代移动通信网络技术标准的无线空口。
终端302可以是指向用户提供语音和/或数据连通性的设备。终端可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，终端302可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。例如，订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、接入点(Access Point)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户装置(User Terminal)、用户代理(User Agent)、用户设备(User Device)、或用户终端(User Equipment)。
需要说明的是，在图3所示的移动通信系统中，可以包括多个接入网设备301和/或多个终端302，图3中以示出一个接入网设备301和一个终端302来举例说明，但本实施例对此不作限定。
图4是根据一示例性实施例示出的一种反馈信息传输方法的流程图，该反馈信息传输方法应用于图3所示的移动通信系统中，如图4所示，该方法包括以下步骤：
在步骤401中，终端在第一时频资源上向接入网设备发送上行数据和第一标识相关信息，第一时频资源是接入网设备预配置的时频资源，第一标识相关信息用于标识终端；
可选地，第一标识相关信息采用如下实现方式中的任意一种：
-上行传输数据中的部分比特；
-终端的标识信息，如国际移动用户识别码(International Mobile Subscriber Identification Number，IMSI)；
-终端的标识信息中的部分比特，如IMSI的后X bit，X为大于或等于1且小于48的整数。
-第一标识相关信息是将终端的标识信息通过函数映射后的函数值，如IMSI mod Y。以Y为8为例，IMSI除以8得到的余数y，第一标识相关信息是y。
-第一标识相关信息是终端生成的随机数，如终端随机产生Z bit的随机数，Z为不小于1的整数。
在步骤402中，接入网设备在第一时频资源上接收终端发送的上行数据和第一标识相关信息，第一标识相关信息用于标识终端。
在步骤403中，接入网设备在目标信道上发送反馈信息，反馈信息包括第二标识相关信息；
其中，目标信道包括PDCCH和/或PDSCH。
在一些实施例中，接入网设备在目标信道上发送反馈信息，反馈信息包括一个或多个第二标识相关信息。第二标识相关信息用于标识在第一时频资源上数据传输成功的终端。
可选地，当终端的上行数据发送成功时，反馈信息中存在一个第二标识相关信息与第一标识相关信息相同。
在步骤404中，终端在目标信道上接收接入网设备发送的反馈信息，反馈信息包括第二标识相关信息，第二标识相关信息用于标识在第一时频资源上数据传输成功的终端。
综上所述，本实施例提供的反馈信息传输方法，通过终端在预配置的第一 时频资源上发送上行数据和第一标识相关信息，第一标识相关信息用于标识终端。终端在目标信道上接收接入网设备发送的反馈信息，反馈信息包括第二标识相关信息，第二标识相关信息用于标识在第一时频资源上数据传输成功的终端。解决了终端采用免授权上行调度向基站发送上行数据时，由于不存在随机接入过程所分配的C-RNTI，基站无法向终端传输HARQ反馈信息的技术问题。达到了在免授权上行调度传输过程中，由终端自行向接入网设备提供第一标识相关信息，接入网设备利用终端提供的第一标识相关信息进行HARQ反馈，实现了免授权上行调度传输场景下的HARQ反馈机制。
在本公开的一些实施例中，反馈信息的承载方式至少包括三种：
第一种方式：反馈信息承载在PDCCH上；
第二种方式：反馈信息承载在PDSCH上；
第三种方式：反馈信息视实际传输情况，选择性地承载在PDCCH或PDSCH上。
下面采用三个实施例，分别对反馈信息传输方法的三种实现方式进行详细说明。
在基于图4的方法实施例的基础上，图5示出了另一个示例性实施例提供的反馈信息传输方法的流程图，该方法将反馈信息承载在PDCCH上，该方法包括以下步骤：
在步骤501中，接入网设备向终端预配置用于免授权上行调度的一个或多个时频资源。
可选地，接入网设备通过高层信令向终端发送配置资源信息，该配置资源信息用于配置用于免授权上行调度的一个或多个时频资源。其中，高层信令可以是用户专用的信令，也可以是系统广播。
配置资源信息用于指示免授权上行调度可用的一个或多个时频资源。可选地，配置资源信息包括该一个或多个时频资源的频率信息和/或时域信息。可选地，该一个或多个时频资源是用于进行物联网(Internet of Things，IoT)传输的资源。
频域信息包括频域单元的起始位置和数目，或者，频域单位的序号；时域信息包括时域单位的序号等。
在一些实施例中，接入网设备还通过高层信令向终端配置扰码序列。示意性的，该扰码序列与免授权上行调度的时频资源相对应，比如时频资源A对应扰码序列1、时频资源B对应扰码序列2。可选地，配置资源信息和扰码序列的配置时间是相同或不同的，和/或，配置资源信息和扰码序列所使用的高层信令是相同或不同的。
在步骤502中，终端在第一时频资源上发送上行数据和第一标识相关信息，第一时频资源是接入网设备预配置的时频资源，第一标识相关信息用于标识终端。
终端接收接入网设备的配置资源信息，从配置资源信息中获取免授权上行调度的一个或多个时频资源的频域信息和/或时域信息。
当存在上行数据发送需求时，终端在多个第一时频资源中，随机挑选或按照策略选择出本次使用的第一时频资源，本实施例对第一时频资源的选择方式不加以限定。
在步骤503中，接入网设备在第一时频资源上接收终端发送的上行数据和第一标识相关信息，第一标识相关信息用于标识终端。
接入网设备在接收到上行数据后，根据上行数据成功接收与否生成反馈信息。示意性的，当上行数据接收成功时，接入网设备将该上行数据对应的第一标识相关信息添加至反馈信息中，作为反馈信息中的第二标识相关信息，第二标识相关信息是用于标识上行数据传输成功的终端；当上行数据接收失败时，接入网设备不将该上行数据对应的第一标识相关信息添加至反馈信息中。
由于免授权频谱上的时频资源是供多个终端以竞争方式进行使用的，因此在第一时频资源上可能会存在两个以上的终端同时发送上行数据，此时会存在一部分终端的上行数据发送成功，另一部分终端的上行数据发送失败；或者，全部终端的上行数据均发送成功；或者，全部终端的上行数据均发送失败。
当存在一部分终端的上行数据发送成功，另一部分终端的上行数据发送失败时，接入网设备将上行数据发送成功的终端的第一标识相关信息添加至反馈信息中。比如，当终端A、终端B和终端C同时在第一时频资源上传输上行数据，其中终端A、终端C传输上行数据成功，接入网设备发送的反馈信息包括两个第二标识相关信息：终端A的标识相关信息，以及终端C的标识相关信息。
当全部终端的上行数据均发送成功时，接入网设备将在第一时频资源上发 送上行数据的全部终端的第一标识相关信息添加至反馈信息中。此时，反馈信息中的第二标识相关信息为多个。
当全部终端的上行数据均发送失败时，接入网设备不生成第二标识相关信息。
在步骤504中，接入网设备在第二时频资源上发送反馈信息，反馈信息由PDCCH承载，反馈信息包括第二标识相关信息。
第二时频资源与第一时频资源具有对应关系。可选地，第二时频资源与第一时频资源在时域上具有对应关系，或者，第二时频资源与第一时频资源在频域上具有对应关系。
在一些实施例中，当多个终端同时在第一时频资源上传输上行数据和第一标识相关信息时，反馈信息可能包括多个第二标识相关信息。
可选地，接入网设备生成携带有反馈信息的DCI，然后通过目标扰码序列对DCI的CRC部分进行加扰；再在第二时频资源上向终端发送该DCI。
在一些实施例中，接入网设备会根据扰码序列的配置信息，确定本次加扰所使用的目标扰码序列；在另一些实施例中，接入网设备根据第一时频资源确定目标扰码序列，也即根据第一时频资源的时频位置动态计算出本次所使用的目标扰码序列。示意性的，接入网设备获取第一时频资源的频率位置编号f_id和起始子帧编号t_id。其中，频率位置编号f_id比如窄带编号，或者，物理资源块(Physical Resource Block，PRB)编号；接入网设备根据频率位置编号f_id和起始子帧编号t_id，计算得到目标扰码序列的编号。比如，接入网设备根据10*f_id+1+t_id计算得到目标扰码序列的编号。
在步骤505中，终端在第二时频资源上接收接入网设备发送的反馈信息，反馈信息由PDCCH承载。
在一些实施例中，终端在第二时频资源上使用目标扰码序列解扰DCI的CRC部分，得到包含反馈信息的DCI。
在一些实施例中，终端预先接收接入网设备配置的扰码序列。可选地，接入网设备通过高层信令给终端配置扰码序列；然后，终端根据扰码序列的配置信息来确定本次解扰所使用的目标扰码序列。
在一些实施例中，终端根据第一时频资源确定目标扰码序列，也即根据第一时频资源的时频位置动态计算出本次所使用的目标扰码序列。在一些实施例中，终端获取第一时频资源的频率位置编号f_id和起始子帧编号t_id。其中， 频率位置编号f_id比如窄带编号，或者，物理资源块(Physical Resource Block，PRB)编号；终端根据频率位置编号f_id和起始子帧编号t_id，计算得到目标扰码序列的编号。示意性的，终端根据10*f_id+1+t_id计算得到扰码序列的编号。
在从DCI中读取到反馈信息后，若反馈信息中的第二标识相关信息包括当前终端的第一标识相关信息，则终端确定本次的上行数据传输成功，开始传输下一个上行数据或结束传输；若反馈信息中的第二标识相关信息不包括当前终端的第一标识相关信息，或者未接收到反馈信息，则终端认为本次的上行数据传输失败，重传本次的上行数据，或者退避指定时长后再次尝试传输本次的上行数据。
综上所述，本实施例提供的反馈信息传输方法，通过终端在预配置的第一时频资源上发送上行数据和第一标识相关信息，第一标识相关信息用于标识终端。终端在PDCCH上接收接入网设备发送的反馈信息。解决了终端采用免授权上行调度向基站发送上行数据时，由于不存在随机接入过程所分配的C-RNTI，基站无法向终端传输HARQ反馈信息的技术问题。达到了在免授权上行调度传输过程中，由终端自行向接入网设备提供第一标识相关信息，接入网设备利用终端提供的第一标识相关信息进行HARQ反馈，实现了免授权上行调度传输场景下的HARQ反馈机制。
在基于图4的方法实施例的基础上，图6示出了另一个示例性实施例提供的反馈信息传输方法的流程图，该方法包括以下步骤：
在步骤601中，接入网设备向终端预配置用于免授权上行调度的一个或多个时频资源。
本步骤的实现过程可以参照上述步骤501的描述。
在步骤602中，终端在第一时频资源上发送上行数据和第一标识相关信息，第一时频资源是接入网设备预配置的时频资源，第一标识相关信息用于标识终端。
本步骤的实现过程可以参照上述步骤502的描述。
在步骤603中，接入网设备在预配置的第一时频资源上接收终端发送的上行数据和第一标识相关信息，第一标识相关信息用于标识终端。
在步骤604中，接入网设备在第二时频资源上发送调度信息，调度信息由 PDCCH承载。
调度信息用于指示位于第三时频资源的PDSCH。可选地，调度信息中还携带有用于辅助接收反馈信息的其他信息，比如调制编码方式(Modulation and Coding Scheme，MCS)，本申请对此不加以限定。可选地，该调度信息承载在DCI中。
在一些实施例中，接入网设备通过目标扰码序列对DCI的CRC部分进行加扰；接入网设备在第二时频资源上向终端发送DCI，DCI携带有调度信息，该DCI承载在PDCCH上。
在一些实施例中，接入网设备会根据扰码序列的配置信息，确定本次加扰所使用的目标扰码序列；在另一些实施例中，接入网设备根据第一时频资源确定目标扰码序列，也即根据第一时频资源的时频位置动态计算出本次所使用的目标扰码序列。示意性的，接入网设备获取第一时频资源的频率位置编号f_id和起始子帧编号t_id。其中，频率位置编号f_id比如窄带编号，或者，物理资源块(Physical Resource Block，PRB)编号；接入网设备根据频率位置编号f_id和起始子帧编号t_id，计算得到目标扰码序列的编号。比如，接入网设备根据10*f_id+1+t_id计算得到目标扰码序列的编号。
在步骤605中，终端在第二时频资源上接收调度信息，调度信息用于指示位于第三时频资源的PDSCH。
在一些实施例中，终端在第二时频资源上使用目标扰码序列解扰DCI的CRC部分，得到包含调度信息的DCI。
在一些实施例中，终端预先接收接入网设备配置的扰码序列。可选地，接入网设备通过高层信令给终端配置扰码序列；然后，终端根据扰码序列的配置信息来确定本次解扰所使用的目标扰码序列。
在一些实施例中，终端根据第一时频资源确定目标扰码序列，也即根据第一时频资源的时频位置动态计算出本次所使用的目标扰码序列。在一些实施例中，终端获取第一时频资源的频率位置编号f_id和起始子帧编号t_id。其中，频率位置编号f_id比如窄带编号，或者，物理资源块(Physical Resource Block，PRB)编号；终端根据频率位置编号f_id和起始子帧编号t_id，计算得到目标扰码序列的编号。示意性的，终端根据10*f_id+1+t_id计算得到目标扰码序列的编号。
在步骤606中，接入网设备在第三时频资源上向终端发送反馈信息，反馈 信息包括第二标识相关信息，反馈信息由PDSCH承载。
在步骤607中，终端在第三时频资源上接收接入网设备发送的反馈信息。
在从PDSCH中获取到反馈信息后，若反馈信息中的第二标识相关信息包括当前终端的第一标识相关信息，则终端确定本次的上行数据传输成功，开始传输下一个上行数据或结束传输；若反馈信息中的第二标识相关信息不包括当前终端的第一标识相关信息，或者未接收到反馈信息，则终端认为本次的上行数据传输失败，重传本次的上行数据，或者退避指定时长后再次尝试传输本次的上行数据。
综上所述，本实施例提供的反馈信息传输方法，通过终端在预配置的第一时频资源上发送上行数据和第一标识相关信息。终端在PDCCH的第二时频资源上接收调度信息，并根据调度信息在第三时频资源上接收包含反馈信息的PDSCH。反馈信息包括第二标识相关信息，第二标识相关信息用于标识在第一时频资源上数据传输成功的终端。解决了终端采用免授权上行调度向基站发送上行数据时，由于不存在随机接入过程所分配的C-RNTI，基站无法向终端传输HARQ反馈信息的技术问题。达到了在免授权上行调度传输过程中，由终端自行向接入网设备提供第一标识相关信息，接入网设备利用终端提供的第一标识相关信息进行HARQ反馈，实现了免授权上行调度传输场景下的HARQ反馈机制。
由于PDSCH所能承载的数据量更大，因此本实施例相比图5实施例，能够由接入网设备向终端传输数据量更大的反馈信息。
在基于图4的方法实施例的基础上，可以将图5的反馈信息传输方式和图6的反馈信息传输方式进行结合实施，由接入网设备视情况选择采用图5的反馈信息传输方式或者图6的反馈信息传输方式。参考图7，图7示出了另一个示例性实施例提供的反馈信息传输方法的流程图，该方法将反馈信息选择性地承载在PDCCH或PDSCH中，该方法包括以下步骤：
在步骤701中，接入网设备向终端预配置用于免授权上行调度的一个或多个时频资源。
本步骤的实现过程可以参照上述步骤501的描述。
在步骤702中，终端在第一时频资源上发送上行数据和第一标识相关信息，第一标识相关信息用于标识终端。
本步骤的实现过程可以参照上述步骤502的描述。
在步骤703中，接入网设备在第一时频资源上接收终端发送的上行数据和第一标识相关信息，第一标识相关信息用于标识终端。
本步骤的实现过程可以参照上述步骤503的描述。
与图5和图6实施例不同的是，接入网设备会动态选择将反馈信息承载在PDCCH或者PDSCH。
该动态选择可以根据PDCCH和PDSCH的可用资源数量来确定，比如PDCCH较为空闲，则选择将反馈信息承载在PDCCH；PDSCH较为空闲，则选择将反馈信息承载在PDCCH。
该动态选择还可以根据反馈信息的数据量来确定，比如反馈信息的数据量小于阈值时，选择将反馈信息承载在PDCCH；反馈信息的数据量大于阈值时，选择将反馈信息承载在PDSCH。
该动态选择还可以根据反馈信息包含的数据类型来确定，比如反馈信息只包括第二标识相关信息时，选择将反馈信息承载在PDCCH；反馈信息同时包括第二标识相关信息和其它信息时，选择将反馈信息承载在PDSCH。
与图5和图6实施例不同的是，本实施例还在DCI增加预设比特位。该预设比特位为第一取值时，用于指示反馈信息承载在PDCCH；该预设比特位为第二取值时，用于指示反馈信息承载在PDSCH。在一些实施例中，预设比特位是DCI中指定的1个比特，第一取值为1，第二取值为0，或者，第一取值为0，第二取值为1。
在步骤704中，接入网设备在第二时频资源上发送DCI，DCI中包括预设比特位和反馈信息，预设比特位是第一取值。
当接入网设备选择将反馈信息承载在PDCCH上时，生成携带有预定比特位和反馈信息的DCI，该预设比特位具有第一取值。
然后，接入网设备在第二时频资源上向终端发送反馈信息，该反馈信息承载在PDCCH上。可选地，接入网设备通过目标扰码序列对DCI的CRC部分进行加扰，在第二时频资源上向终端发送该DCI。
在一些实施例中，接入网设备会根据扰码序列的配置信息，确定本次加扰所使用的目标扰码序列；在另一些实施例中，接入网设备根据第一时频资源确定目标扰码序列，也即根据第一时频资源的时频位置动态计算出本次所使用的目标扰码序列。示意性的，接入网设备获取第一时频资源的频率位置编号f_id 和起始子帧编号t_id。其中，频率位置编号f_id比如窄带编号，或者，物理资源块(Physical Resource Block，PRB)编号；接入网设备根据频率位置编号f_id和起始子帧编号t_id，计算得到目标扰码序列的编号。比如，接入网设备根据10*f_id+1+t_id计算得到目标扰码序列的编号。
在步骤705中，当在预设比特位是第一取值时，终端从DCI中获取反馈信息。
可选地，终端在第二时频资源上使用目标扰码序列解扰DCI的CRC部分，得到包含反馈信息的DCI。
终端采用与接入网设备相同或相对应的方式来确定目标扰码序列。
在一些实施例中，终端预先接收接入网设备配置的扰码序列。可选地，接入网设备通过高层信令给终端配置扰码序列；然后，终端根据扰码序列的配置信息来确定本次解扰所使用的目标扰码序列。
在一些实施例中，终端根据第一时频资源确定目标扰码序列，也即根据第一时频资源的时频位置动态计算出本次所使用的目标扰码序列。在一些实施例中，终端获取第一时频资源的频率位置编号f_id和起始子帧编号t_id。其中，频率位置编号f_id比如窄带编号，或者，PRB编号；终端根据频率位置编号f_id和起始子帧编号t_id，计算得到目标扰码序列的编号。示意性的，终端根据10*f_id+1+t_id计算得到目标扰码序列的编号。
在步骤706中，接入网设备在第二时频资源上发送DCI，DCI中包括预设比特位和调度信息，DCI由PDCCH承载，预设比特位是第二取值。
当接入网设备选择将反馈信息承载在PDSCH时，生成携带有预定比特位和调度信息的DCI，该预设比特位具有第二取值。该调度信息用于指示在PDSCH上用于位于第三时频资源的PDSCH。
然后，接入网设备在第二时频资源上向终端发送调度信息，该调度信息承载在PDCCH上。
可选地，接入网设备通过目标扰码序列对DCI的CRC部分进行加扰，在第二时频资源上向终端发送该DCI。
在步骤707中，当预设比特位是第二取值时，终端从DCI中获取调度信息，调度信息用于指示位于第三时频资源的PDSCH。
可选地，终端在第二时频资源上使用目标扰码序列解扰DCI的CRC部分，得到包含调度信息的DCI。
在步骤708中，接入网设备在第三时频资源上发送反馈信息，反馈信息由PDSCH承载。
在步骤709中，终端在第三时频资源上接收反馈信息。
在从PDSCH中获取到反馈信息后，若反馈信息中的第二标识相关信息包括当前终端的第一标识相关信息，则终端确定本次的上行数据传输成功，开始传输下一个上行数据或结束传输；若反馈信息中的第二标识相关信息不包括当前终端的第一标识相关信息，或者未接收到反馈信息，则终端认为本次的上行数据传输失败，重传本次的上行数据，或者退避指定时长后再次尝试传输本次的上行数据。
需要说明的是，步骤704-705与步骤706-710是两个不同的执行分支，在单次反馈过程中，只执行步骤704-705，或者只执行步骤706-709即可。
综上所述，本实施例提供的反馈信息传输方法，通过终端在预配置的第一时频资源上发送上行数据和第一标识相关信息。终端根据比特位和反馈信息确定第一时频资源上数据传输成功的终端。解决了终端采用免授权上行调度向基站发送上行数据时，由于不存在随机接入过程所分配的C-RNTI，基站无法向终端传输HARQ反馈信息的技术问题。达到了在免授权上行调度传输过程中，由终端自行向接入网设备提供第一标识相关信息，接入网设备利用终端提供的第一标识相关信息进行HARQ反馈，实现了免授权上行调度传输场景下的HARQ反馈机制。
本实施例还通过动态选择方式，将反馈信息承载在PDCCH或PDSCH中，接入网设备可以更加灵活地根据实际传输情况，来选择更加合适的反馈信息发送方式，提高了反馈信息在发送时的灵活性。
在上述方法实施例的描述中，均以反馈信息包括第二标识相关信息来举例说明。但在基于上述方法实施例的可选实施例中，接入网设备向终端发送的反馈信息中还包括：传输辅助信息。
其中，传输辅助信息包括但不限于如下信息中的至少一项：
-数据传输成功所对应的终端的时间提前调整量；
-数据传输成功所对应的终端的功率控制参数；
-数据传输成功所对应的终端的第一指示信息，第一指示信息用于指示建立RRC连接，以使得该终端实现更可靠的数据传输；
-数据传输失败所对应的终端的第二指示信息，第二指示信息用于指示重传上行数据时的退避时间设置范围，以使得该终端在退避时间内不会影响其它成功发送数据的终端的上行数据发送过程；
-数据传输失败所对应的终端的时间提前调整量；
-数据传输失败所对应的终端的功率递增参数。
传输辅助信息用于辅助目标终端在后续传输过程中实现成功率更高的上行数据传输，目标终端是指在第一时频资源上进行数据传输的终端。本实施例对传输辅助信息的具体内容和形式不加以限定。
本公开实施例通过在反馈信息中还包括传输辅助信息，用以调整数据传输成功的终端或者数据传输失败的终端的后续传输参数，从而提高了上行数据传输的效率和可靠性。
在基于图7的可选实施例中，接入网设备可以根据反馈信息中的数据类型来动态选择两种反馈信息传输方式中的一种。示意性的，当反馈信息仅包括第二标识相关信息时，采用图5所示的反馈信息传输方式；当反馈信息同时包括第二标识相关信息和辅助传输信息时，采用图6所示的反馈信息传输方式。请参考如下实施例：
图8是根据一示例性实施例示出的另一种反馈信息传输方法的流程图。该方法包括以下步骤：
在步骤801中，接入网设备向终端预配置用于免授权上行调度的一个或多个时频资源。
本步骤的实现过程可以参照上述步骤501的描述。
在步骤802中，终端在第一时频资源上发送上行数据和第一标识相关信息，第一标识相关信息用于标识终端。
本步骤的实现过程可以参照上述步骤502的描述。
在步骤803中，接入网设备在第一时频资源上接收终端发送的上行数据和第一标识相关信息，第一标识相关信息用于标识终端。
本步骤的实现过程可以参照上述步骤503的描述。
在步骤804中，接入网设备生成反馈信息，反馈信息包括：第二标识相关信息，或者，第二标识相关信息和传输辅助信息。
接入网设备会根据反馈信息包含的数据类型，将反馈信息承载在PDCCH 或PDSCH。
可选地，反馈信息只包括第二标识相关信息时，选择将反馈信息承载在PDCCH；
可选地，反馈信息同时包括第二标识相关信息和传输辅助信息时，选择将反馈信息承载在PDSCH。
本实施例还在DCI增加预设比特位。该预设比特位为第一取值时，用于指示反馈信息承载在PDCCH，且反馈信息只包括第二标识相关信息；该预设比特位为第二取值时，用于指示反馈信息承载在PDSCH，且反馈信息同时包括第二标识相关信息和传输辅助信息。在一些实施例中，预设比特位是DCI中指定的1个比特，第一取值为1，第二取值为0。
在步骤805中，接入网设备在第二时频资源上发送DCI，DCI中包括预设比特位和反馈信息，预设比特位是第一取值，反馈信息包括第二标识相关信息。
当接入网设备选择将反馈信息承载在PDCCH上时，生成携带有预定比特位和反馈信息的DCI，该预设比特位具有第一取值。
然后，接入网设备在第二时频资源上向终端发送反馈信息，该反馈信息承载在PDCCH上。可选地，接入网设备通过目标扰码序列对DCI的CRC部分进行加扰，在第二时频资源上向终端发送该DCI。
在一些实施例中，接入网设备会根据扰码序列的配置信息，确定本次加扰所使用的目标扰码序列；在另一些实施例中，接入网设备根据第一时频资源确定目标扰码序列，也即根据第一时频资源的时频位置动态计算出本次所使用的目标扰码序列。示意性的，接入网设备获取第一时频资源的频率位置编号f_id和起始子帧编号t_id。其中，频率位置编号f_id比如窄带编号，或者，物理资源块(Physical Resource Block，PRB)编号；接入网设备根据频率位置编号f_id和起始子帧编号t_id，计算得到目标扰码序列的编号。比如，接入网设备根据10*f_id+1+t_id计算得到目标扰码序列的编号。
在步骤806，当在预设比特位是第一取值时，终端从DCI中获取反馈信息。
可选地，终端在第二时频资源上使用目标扰码序列解扰DCI的CRC部分，得到包含反馈信息的DCI。
终端采用与接入网设备相同或相对应的方式来确定目标扰码序列。
在一些实施例中，终端预先接收接入网设备配置的扰码序列。可选地，接入网设备通过高层信令给终端配置扰码序列；然后，终端根据扰码序列的配置 信息来确定本次解扰所使用的目标扰码序列。
在一些实施例中，终端根据第一时频资源确定目标扰码序列，也即根据第一时频资源的时频位置动态计算出本次所使用的目标扰码序列。在一些实施例中，终端获取第一时频资源的频率位置编号f_id和起始子帧编号t_id。其中，频率位置编号f_id比如窄带编号，或者，PRB编号；终端根据频率位置编号f_id和起始子帧编号t_id，计算得到目标扰码序列的编号。示意性的，终端根据10*f_id+1+t_id计算得到目标扰码序列的编号。
在步骤807中，接入网设备在第二时频资源上发送DCI，DCI中包括预设比特位和调度信息，预设比特位是第二取值,。
当接入网设备选择将反馈信息承载在PDSCH时，生成携带有预定比特位和调度信息的DCI，该预设比特位具有第二取值。该调度信息用于指示位于第三时频资源的PDSCH。
然后，接入网设备在第二时频资源上向终端发送调度信息，该调度信息承载在PDCCH上。
可选地，接入网设备通过目标扰码序列对DCI的CRC部分进行加扰，在第二时频资源上向终端发送该DCI。
在步骤808中，当预设比特位是第二取值时，终端从DCI中获取调度信息，调度信息用于指示位于第三时频资源的PDSCH。
可选地，终端在第二时频资源上使用目标扰码序列解扰DCI的CRC部分，得到包含调度信息的DCI。
在步骤809中，接入网设备在第三时频资源上发送反馈信息，反馈信息由PDSCH承载，反馈信息包括第二标识相关信息和传输辅助信息。
在步骤810中，终端在第三时频资源上接收反馈信息。
在从PDSCH中获取到反馈信息后，若反馈信息中的第二标识相关信息包括当前终端的第一标识相关信息，则终端确定本次的上行数据传输成功，开始传输下一个上行数据或结束传输；若反馈信息中的第二标识相关信息不包括当前终端的第一标识相关信息，或者未接收到反馈信息，则终端认为本次的上行数据传输失败，重传本次的上行数据，或者退避指定时长后再次尝试传输本次的上行数据。
当反馈信息中还包括传输辅助信息时，终端还可选执行如下步骤中的至少一种：
-当传输辅助信息包括数据传输成功所对应的终端的时间提前调整量，且终端的本次上行数据传输成功时，根据时间提前调整量调整下一次上行数据的发送时间；
-当传输辅助信息包括传输成功所对应的终端的功率控制参数，且终端的本次上行数据传输成功时，根据功率控制参数调整下一次上行数据的发送功率；
-当传输辅助信息包括数据传输成功所对应的终端的第一指示信息，，且终端的本次上行数据传输成功时，根据第一指示信息与接入网设备建立RRC连接，使用建立的RRC连接进行下一次数据的传输；
-当传输辅助信息包括数据传输失败所对应的终端的第二指示信息，且终端的本次上行数据传输失败时，根据第二指示信息中的退避时间设置范围进行退避，等退避结束后再次尝试重传上行数据；
-当传输辅助信息包括数据传输失败所对应的终端的时间提前调整量，且终端的本次上行数据传输失败时，根据时间提前调整量调整下一次上行数据的发送时间；
当传输辅助信息包括数据传输失败所对应的终端的功率递增参数，且终端的本次上行数据传输失败时，根据功率递增参数调整下一次上行数据的发送功率。
需要说明的是，步骤804-805与步骤806-810是两个不同的执行分支，在单次反馈过程中，只执行步骤804-805，或者只执行步骤806-810即可。
综上所述，本实施例提供的反馈信息传输方法，通过终端在预配置的第一时频资源上发送上行数据和第一标识相关信息。终端根据比特位和反馈信息确定第一时频资源上数据传输成功的终端。解决了终端采用免授权上行调度向基站发送上行数据时，由于不存在随机接入过程所分配的C-RNTI，基站无法向终端传输HARQ反馈信息的技术问题。达到了在免授权上行调度传输过程中，由终端自行向接入网设备提供第一标识相关信息，接入网设备利用终端提供的第一标识相关信息进行HARQ反馈，实现了免授权上行调度传输场景下的HARQ反馈机制。
另一方面，反馈信息中还包括传输辅助信息，用以调整数据传输成功的终端或者数据传输失败的终端的后续传输参数，从而提高了上行数据传输的效率。
下述为本公开装置实施例，可以用于执行本公开方法实施例。对于本公开装置实施例中未披露的细节，请参照本公开方法实施例。
图9是根据一示例性实施例示出的一种反馈信息传输装置的框图，该装置可以通过软件、硬件或者两者的结合实现上行数据传输的部分或者全部。该装置可以包括：
第一发送模块901，被配置为在在第一时频资源上向接入网设备发送上行数据和第一标识相关信息，第一时频资源是接入网设备预配置的时频资源，第一标识相关信息用于标识终端；
第一接收模块903，被配置为在目标信道上接收接入网设备发送的反馈信息，反馈信息包括第二标识相关信息，第二标识相关信息用于标识在第一时频资源上数据传输成功的终端；
其中，目标信道包括PDCCH和/或PDSCH。
可选地，第一标识相关信息，包括：终端的标识信息；或，上行数据中的部分比特；或，终端的标识信息中的部分比特；或，将终端的标识信息通过函数映射后的函数值；或，终端生成的随机数。
在一些可能的实施方式中，反馈信息还包括传输辅助信息，传输辅助信息是用于辅助传输后续上行数据的信息。
可选地，传输辅助信息包括如下信息中的至少一项：数据传输成功所对应的终端的时间提前调整量；数据传输成功所对应的终端的功率控制参数；数据传输成功所对应的终端的第一指示信息，第一指示信息用于指示RRC连接；数据传输失败所对应的终端的第二指示信息，第二指示信息用于指示重传上行数据时的退避(backoff)时间设置范围；数据传输失败所对应的终端的时间提前调整量；数据传输失败所对应的终端的功率递增(power ramping)参数。
在一些可能的实施方式中，第一接收模块903，被配置为在第二时频资源上接收接入网设备发送的反馈信息，反馈信息由PDCCH承载。
在一些可能的实施方式中，本实施例提供的装置还包括：第一处理模块902，被配置为在第二时频资源上使用目标扰码序列解扰DCI的CRC部分，得到包含反馈信息的DCI。
在一些可能的实施方式中，第一接收模块903，被配置为在第二时频资源上接收调度信息，调度信息用于指示位于第三时频资源上的PDSCH，调度信 息由PDCCH承载；
第一接收模块903，被配置为在第三时频资源上接收接入网设备发送的反馈信息，反馈信息由PDSCH承载。
在一些可能的实施方式中，第一处理模块902，被配置在第二时频资源上使用目标扰码序列解扰DCI的CRC部分，得到包含调度信息的DCI。
在一些可能的实施方式中，第一接收模块903，被配置为在第二时频资源上接收DCI，DCI中包括预设比特位，DCI由PDCCH承载；
可选地，第一接收模块903，被配置为在预设比特位是第一取值时，从DCI中获取反馈信息；
第一接收模块903，被配置为在预设比特位是第二取值时，从DCI中获取调度信息，调度信息用于指示位于第三时频资源的PDSCH；在第三时频资源上接收接入网设备发送的反馈信息，反馈信息由PDSCH承载。
在一些可能的实施方式中，在预设比特位是第二取值时，反馈信息还包括传输辅助信息，传输辅助信息是用于辅助传输后续上行数据的信息。
在一些可能的实施方式中，第一处理模块902，被配置为在第二时频资源上使用目标扰码序列解扰DCI的CRC部分，得到包含预设比特位的DCI。
在一些可能的实施方式中，第一接收模块903，被配置为接收接入网设备配置的目标扰码序列；或者，第一处理模块902，被配置为根据第一时频资源确定目标扰码序列。
在一些可能的实施方式中，第一处理模块902，被配置为获取第一时频资源的频率位置编号f_id和起始子帧编号t_id；根据频率位置编号f_id和起始子帧编号t_id，计算得到扰码序列的编号。
综上所述，本实施例提供的反馈信息传输装置，通过终端在预配置的第一时频资源上发送上行数据和第一标识相关信息。终端根据比特位和反馈信息确定第一时频资源上数据传输成功的终端。解决了终端采用免授权上行调度向基站发送上行数据时，由于不存在随机接入过程所分配的C-RNTI，基站无法向终端传输HARQ反馈信息的技术问题。达到了在免授权上行调度传输过程中，由终端自行向接入网设备提供第一标识相关信息，接入网设备利用终端提供的第一标识相关信息进行HARQ反馈，实现了免授权上行调度传输场景下的HARQ反馈机制。
图12是根据一示例性实施例示出的一种反馈信息传输装置的框图，该装置可以通过软件、硬件或者两者的结合实现上行数据传输的部分或者全部。该装置可以包括：
第二接收模块1001，被配置为在第一时频资源上接收终端发送的上行数据和第一标识相关信息，第一时频资源是接入网设备预配置的时频资源，第一标识相关信息用于标识终端；
第二发送模块1003，被配置为在目标信道上发送反馈信息，反馈信息包括第二标识相关信息，第二标识相关信息用于标识在第一时频资源上数据传输成功的终端；
其中，目标信道包括PDCCH和/或PDSCH。
可选地，第一标识相关信息，包括：终端的标识信息；或，上行数据中的部分比特；或，终端的标识信息中的部分比特；或，将终端的标识信息通过函数映射后的函数值；或，终端生成的随机数。
在一些可能的实施方式中，反馈信息还包括传输辅助信息，传输辅助信息是用于辅助传输后续上行数据的信息。
可选地，传输辅助信息包括如下信息中的至少一项：数据传输成功所对应的终端的时间提前调整量；数据传输成功所对应的终端的功率控制参数；数据传输成功所对应的终端的第一指示信息，第一指示信息用于指示建立RRC连接；数据传输失败所对应的终端的第二指示信息，第二指示信息用于指示重传上行数据时的退避(backoff)时间设置范围；数据传输失败所对应的终端的时间提前调整量；数据传输失败所对应的终端的功率递增(power ramping)参数。
在一些可能的实施方式中，第二发送模块1003，被配置为在第二时频资源上发送反馈信息，反馈信息由PDCCH承载。
在一些可能的实施方式中，本实施例提供的装置还包括：第二处理模块1002，被配置为通过目标扰码序列对DCI的CRC部分进行加扰；
第二发送模块1003，被配置为在第二时频资源上向终端发送DCI，DCI携带有反馈信息，DCI由PDCCH承载。
在一些可能的实施方式中，第二发送模块1003，被配置为在第二时频资源上发送调度信息，调度信息用于指示位于第三时频资源的PDSCH，调度信息由PDCCH承载；
第二发送模块1003，被配置为在第三时频资源上发送反馈信息，反馈信息 由PDSCH承载。
在一些可能的实施方式中，第二处理模块1002，被配置为通过目标扰码序列对DCI的CRC部分进行加扰；
第二发送模块1003，被配置为在第二时频资源上向终端发送DCI，DCI携带有调度信息，调度信息由PDCCH承载。
在一些可能的实施方式中，第二发送模块1003，被配置为在第二时频资源上发送下行控制信息DCI，DCI中包括预设比特位和反馈信息，DCI由PDCCH承载，预设比特位是第一取值；
或者，
第二发送模块1003，被配置为在第二时频资源上发送DCI，DCI中包括预设比特位和调度信息，DCI由PDCCH承载，预设比特位是第二取值，调度信息用于指示位于第三时频资源的PDSCH；接入网设备在第三时频资源上发送反馈信息，反馈信息由PDSCH承载。
在一些可能的实施方式中，在预设比特位是第二取值时，反馈信息包括第二标识相关信息和传输辅助信息，传输辅助信息是用于辅助传输后续上行数据的信息。
在一些可能的实施方式中，第二处理模块1002，被配置为目标扰码序列对DCI的CRC部分进行加扰；
第二发送模块1003，被配置为在第二时频资源上向终端发送加扰后的DCI。
在一些可能的实施方式中，第二处理模块1002，被配置为向终端配置目标扰码序列；或者，第二处理模块1002，被配置为根据第一时频资源确定目标扰码序列。
在一些可能的实施方式中，第二处理模块，被配置为获取第一时频资源的频率位置编号f_id和起始子帧编号t_id；根据频率位置编号f_id和起始子帧编号t_id，计算得到第一扰码序列的编号。
综上所述，本实施例提供的反馈信息传输装置，通过终端在预配置的第一时频资源上发送上行数据和第一标识相关信息。终端根据比特位和反馈信息确定第一时频资源上数据传输成功的终端。解决了终端采用免授权上行调度向基站发送上行数据时，由于不存在随机接入过程所分配的C-RNTI，基站无法向终端传输HARQ反馈信息的技术问题。达到了在免授权上行调度传输过程中， 由终端自行向接入网设备提供第一标识相关信息，接入网设备利用终端提供的第一标识相关信息进行HARQ反馈，实现了免授权上行调度传输场景下的HARQ反馈机制。
另一方面，反馈信息中还包括传输辅助信息，用以调整数据传输成功的终端或者数据传输失败的终端的后续传输参数，从而提高了上行数据传输的效率。
需要说明的一点是，上述实施例提供的装置在反馈信息传输时，仅以上述各个功能模块的划分进行举例说明，实际应用中，可以根据实际需要而将上述功能分配由不同的功能模块完成，即将设备的内容结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图11是根据一示例性实施例示出的一种用于反馈信息传输的设备1100的框图。例如，反馈信息传输设备1100可以是终端或接入网设备。如图11所示，反馈信息传输1100可以包括：处理器1101、接收机1102、发射机1103和存储器1104。接收机1102、发射机1103和存储器1104分别通过总线与处理器1101连接。
其中，处理器1101包括一个或者一个以上处理核心，处理器1101通过运行软件程序以及模块以执行本公开实施例提供的反馈信息传输方法中终端或基站所执行的方法。存储器1104可用于存储软件程序以及模块。具体的，存储器1104可存储操作系统11041、至少一个功能所需的应用程序模块11042。接收机1102用于接收其他设备发送的通信数据，发射机1103用于向其他设备发送通信数据。
图12示出了本申请一个示例性实施例提供的一种用于反馈信息传输的系统1200的框图。如图12所示，该系统包括接入网设备1201和终端1202。
其中接入网设备和终端1202用于执行图4至图8任一所示的反馈信息传输方法。
在示例性实施例中，还提供了一种计算机可读存储介质，该计算机可读存 储介质为非易失性的计算机可读存储介质，该计算机可读存储介质中存储有计算机程序，存储的计算机程序被处理组件执行时能够实现本公开上述实施例提供的反馈信息传输方法。
本公开实施例还提供了一种计算机程序产品，该计算机程序产品中存储有指令，当其在计算机上运行时，使得计算机能够执行本公开实施例提供的系反馈信息传输方法。
本公开实施例还提供了一种芯片，该芯片包括可编程逻辑电路和/或程序指令，当该芯片运行时能够执行本公开实施例提供的反馈信息传输方法。
应当理解的是，在本文中提及的“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (55)

  1. 一种反馈信息传输方法，其特征在于，所述方法包括：
    终端在第一时频资源上向接入网设备发送上行数据和第一标识相关信息，所述第一时频资源是所述接入网设备预配置的时频资源，所述第一标识相关信息用于标识所述终端；
    所述终端在目标信道上接收所述接入网设备发送的反馈信息，所述反馈信息包括第二标识相关信息，所述第二标识相关信息用于标识在所述第一时频资源上数据传输成功的终端；
    其中，所述目标信道包括物理下行控制信道PDCCH和/或物理下行共享信道PDSCH。
  2. 根据权利要求1所述的方法，其特征在于，所述第一标识相关信息，包括：
    所述终端的标识信息；
    或，所述上行数据中的部分比特；
    或，所述终端的标识信息中的部分比特；
    或，将所述终端的标识信息通过函数映射后的函数值；
    或，所述终端生成的随机数。
  3. 根据权利要求1所述的方法，其特征在于，所述反馈信息还包括传输辅助信息，所述传输辅助信息是用于辅助传输后续上行数据的信息。
  4. 根据权利要求3所述的方法，其特征在于，所述传输辅助信息包括如下信息中的至少一项：
    数据传输成功所对应的终端的时间提前调整量；
    数据传输成功所对应的终端的功率控制参数；
    数据传输成功所对应的终端的第一指示信息，所述第一指示信息用于指示建立无线资源控制RRC连接；
    数据传输失败所对应的终端的第二指示信息，所述第二指示信息用于指示重传上行数据时的退避backoff时间设置范围；
    数据传输失败所对应的终端的时间提前调整量；
    数据传输失败所对应的终端的功率递增power ramping参数。
  5. 根据权利要求1至4任一所述的方法，其特征在于，所述终端在目标信道上接收所述接入网设备发送的反馈信息，包括：
    所述终端在第二时频资源上接收所述接入网设备发送的所述反馈信息，所述反馈信息由所述PDCCH承载。
  6. 根据权利要求5所述的方法，其特征在于，所述终端在所述第二时频资源上接收所述接入网设备发送的所述反馈信息，包括：
    所述终端在所述第二时频资源上使用目标扰码序列解扰下行控制信息DCI的循环冗余校验CRC部分，得到包含所述反馈信息的DCI。
  7. 根据权利要求1至4任一所述的方法，其特征在于，所述终端在目标信道上接收所述接入网设备发送的反馈信息，包括：
    所述终端在所述第二时频资源上接收调度信息，所述调度信息用于指示位于第三时频资源的所述PDSCH，所述调度信息由所述PDCCH承载；
    所述终端在所述第三时频资源上接收所述接入网设备发送的所述反馈信息，所述反馈信息由所述PDSCH承载。
  8. 根据权利要求7所述的方法，其特征在于，所述终端在所述第二时频资源上接收调度信息，包括：
    所述终端在所述第二时频资源上使用目标扰码序列解扰下行控制信息DCI的循环冗余校验CRC部分，得到包含所述调度信息的DCI。
  9. 根据权利要求1至4任一所述的方法，其特征在于，所述终端在目标信道上接收所述接入网设备发送的反馈信息，包括：
    所述终端在所述第二时频资源上接收下行控制信息DCI，所述DCI中包括预设比特位，所述DCI由所述PDCCH承载；
    所述终端在所述预设比特位是第一取值时，从所述DCI中获取所述反馈信息；
    所述终端在所述预设比特位是第二取值时，从所述DCI中获取调度信息，所述调度信息用于指示位于第三时频资源的所述PDSCH；在所述第三时频资源上接收所述接入网设备发送的所述反馈信息，所述反馈信息由所述PDSCH承载。
  10. 根据权利要求9所述的方法，其特征在于，
    在所述预设比特位是第二取值时，所述反馈信息还包括传输辅助信息，所述传输辅助信息是用于辅助传输后续上行数据的信息。
  11. 根据权利要求9所述的方法，其特征在于，所述终端在所述第二时频资源上接收下行控制信息DCI，包括：
    所述终端在所述第二时频资源上使用目标扰码序列解扰所述DCI的循环冗余校验CRC部分，得到包含所述预设比特位的DCI。
  12. 根据权利要求6或8或11所述的方法，其特征在于，所述方法还包括:
    所述终端接收所述接入网设备配置的所述目标扰码序列；
    或者，
    所述终端根据所述第一时频资源确定所述目标扰码序列。
  13. 根据权利要求12所述的方法，其特征在于，所述终端根据所述第一时频资源确定所述目标扰码序列，包括：
    所述终端获取所述第一时频资源的频率位置编号f_id和起始子帧编号t_id；
    所述终端根据所述频率位置编号f_id和所述起始子帧编号t_id，计算得到所述目标扰码序列的编号。
  14. 一种反馈信息传输方法，其特征在于，所述方法包括：
    接入网设备在第一时频资源上接收终端发送的上行数据和第一标识相关信息，所述第一时频资源是所述接入网设备预配置的时频资源，所述第一标识相关信息用于标识所述终端；
    所述接入网设备在目标信道上发送反馈信息，所述反馈信息包括第二标识相关信息，所述第二标识相关信息用于标识在所述第一时频资源上数据传输成 功的终端；
    其中，所述目标信道包括物理下行控制信道PDCCH和/或物理下行共享信道PDSCH。
  15. 根据权利要求14所述的方法，其特征在于，所述第一标识相关信息，包括：
    所述终端的标识信息；
    或，所述上行数据中的部分比特；
    或，所述终端的标识信息中的部分比特；
    或，将所述终端的标识信息通过函数映射后的函数值；
    或，所述终端生成的随机数。
  16. 根据权利要求14所述的方法，其特征在于，所述反馈信息还包括传输辅助信息，所述传输辅助信息是用于辅助传输后续上行数据的信息。
  17. 根据权利要求16所述的方法，其特征在于，所述传输辅助信息包括如下信息中的至少一项：
    数据传输成功所对应的终端的时间提前调整量；
    数据传输成功所对应的终端的功率控制参数；
    数据传输成功所对应的终端的第一指示信息，所述第一指示信息用于指示建立无线资源控制RRC连接；
    数据传输失败所对应的终端的第二指示信息，所述第二指示信息用于指示重传上行数据时的退避backoff时间设置范围；
    数据传输失败所对应的终端的时间提前调整量；
    数据传输失败所对应的终端的功率递增power ramping参数。
  18. 根据权利要求14至17任一所述的方法，其特征在于，所述接入网设备在目标信道上发送反馈信息，包括：
    所述接入网设备在所述第二时频资源上发送所述反馈信息，所述反馈信息由所述PDCCH承载。
  19. 根据权利要求18所述的方法，其特征在于，所述接入网设备在所述第二时频资源上发送所述反馈信息，包括：
    所述接入网设备通过目标扰码序列对下行控制信息DCI的循环冗余校验CRC部分进行加扰；
    所述接入网设备在所述第二时频资源上向所述终端发送所述DCI，所述DCI携带有所述反馈信息，所述DCI由所述PDCCH承载。
  20. 根据权利要求14至17任一所述的方法，其特征在于，所述接入网设备在目标信道上接收所述接入网设备发送的反馈信息，包括：
    所述接入网设备在所述第二时频资源上发送调度信息，所述调度信息用于指示位于第三时频资源的所述PDSCH，所述调度信息由所述PDCCH承载；
    所述接入网设备在所述第三时频资源上发送所述反馈信息，所述反馈信息由所述PDSCH承载。
  21. 根据权利要求20所述的方法，其特征在于，所述接入网设备在所述第二时频资源上发送调度信息，包括：
    所述接入网设备通过目标扰码序列对下行控制信息DCI的循环冗余校验CRC部分进行加扰；
    所述接入网设备在所述第二时频资源上向所述终端发送所述DCI，所述DCI携带有所述调度信息，所述调度信息由所述PDCCH承载。
  22. 根据权利要求14至17任一所述的方法，其特征在于，所述接入网设备在目标信道上发送所述反馈信息，包括：
    所述接入网设备在所述第二时频资源上发送下行控制信息DCI，所述DCI中包括预设比特位和所述反馈信息，所述DCI由所述PDCCH承载，所述预设比特位是第一取值；
    或者，
    所述接入网设备在所述第二时频资源上发送所述DCI，所述DCI中包括所述预设比特位和所述调度信息，所述DCI由所述PDCCH承载，所述预设比特位是第二取值，所述调度信息用于指示位于第三时频资源的所述PDSCH；所述接入网设备在所述第三时频资源上发送所述反馈信息，所述反馈信息由所述 PDSCH承载。
  23. 根据权利要求22所述的方法，其特征在于，
    在所述预设比特位是第二取值时，所述反馈信息还包括传输辅助信息，所述传输辅助信息是用于辅助传输后续上行数据的信息。
  24. 根据权利要求22所述的方法，其特征在于，所述接入网设备在所述第二时频资源上发送下行控制信息DCI，包括：
    所述接入网设备通过目标扰码序列对所述DCI的循环冗余校验CRC部分进行加扰；
    所述接入网设备在所述第二时频资源上向所述终端发送加扰后的所述DCI。
  25. 根据权利要求19或21或24所述的方法，其特征在于，所述方法还包括:
    所述接入网设备向所述终端配置所述目标扰码序列；
    或者，
    所述接入网设备根据所述第一时频资源确定所述目标扰码序列。
  26. 根据权利要求25所述的方法，其特征在于，所述接入网设备根据所述第一时频资源确定所述目标扰码序列，包括：
    所述接入网设备获取所述第一时频资源的频率位置编号f_id和起始子帧编号t_id；
    所述接入网设备根据所述频率位置编号f_id和所述起始子帧编号t_id，计算得到所述目标扰码序列的编号。
  27. 一种反馈信息传输装置，其特征在于，所述装置包括：
    第一发送模块，被配置为在在第一时频资源上向接入网设备发送上行数据和第一标识相关信息，所述第一时频资源是所述接入网设备预配置的时频资源，所述第一标识相关信息用于标识所述终端；
    第一接收模块，被配置为在目标信道上接收所述接入网设备发送的反馈信息，所述反馈信息包括第二标识相关信息，所述第二标识相关信息用于标识在 所述第一时频资源上数据传输成功的终端；
    其中，所述目标信道包括物理下行控制信道PDCCH和/或物理下行共享信道PDSCH。
  28. 根据权利要求27所述的装置，其特征在于，所述第一标识相关信息，包括：
    所述终端的标识信息；
    或，所述上行数据中的部分比特；
    或，所述终端的标识信息中的部分比特；
    或，将所述终端的标识信息通过函数映射后的函数值；
    或，所述终端生成的随机数。
  29. 根据权利要求28所述的装置，其特征在于，所述反馈信息还包括传输辅助信息，所述传输辅助信息是用于辅助传输后续上行数据的信息。
  30. 根据权利要求29所述的装置，其特征在于，所述传输辅助信息包括如下信息中的至少一项：
    数据传输成功所对应的终端的时间提前调整量；
    数据传输成功所对应的终端的功率控制参数；
    数据传输成功所对应的终端的第一指示信息，所述第一指示信息用于指示建立无线资源控制RRC连接；
    数据传输失败所对应的终端的第二指示信息，所述第二指示信息用于指示重传上行数据时的退避backoff时间设置范围；
    数据传输失败所对应的终端的时间提前调整量；
    数据传输失败所对应的终端的功率递增power ramping参数。
  31. 根据权利要求27至30任一所述的装置，其特征在于，
    所述第一接收模块，被配置为在所述第二时频资源上接收所述接入网设备发送的所述反馈信息，所述反馈信息由所述PDCCH承载。
  32. 根据权利要求31所述的装置，其特征在于，所述装置还包括：第一处 理模块；
    所述第一处理模块，被配置为在所述第二时频资源上使用目标扰码序列解扰下行控制信息DCI的循环冗余校验CRC部分，得到包含所述反馈信息的DCI。
  33. 根据权利要求27至30任一所述的装置，其特征在于，
    所述第一接收模块，被配置为在所述第二时频资源上接收调度信息，所述调度信息用于指示位于第三时频资源上的所述PDSCH，所述调度信息由所述PDCCH承载；
    所述第一接收模块，被配置为在所述第三时频资源上接收所述接入网设备发送的所述反馈信息，所述反馈信息由所述PDSCH承载。
  34. 根据权利要求33所述的装置，其特征在于，所述装置还包括：第一处理模块；
    所述第一处理模块，被配置在所述第二时频资源上使用目标扰码序列解扰下行控制信息DCI的循环冗余校验CRC部分，得到包含所述调度信息的DCI。
  35. 根据权利要求27至30任一所述的装置，其特征在于，
    所述第一接收模块，被配置为在所述第二时频资源上接收下行控制信息DCI，所述DCI中包括预设比特位，所述DCI由所述PDCCH承载；
    所述第一接收模块，被配置为在所述预设比特位是第一取值时，从所述DCI中获取所述反馈信息；
    所述第一接收模块，被配置为在所述预设比特位是第二取值时，从所述DCI中获取调度信息，所述调度信息用于指示位于第三时频资源的所述PDSCH；在所述第三时频资源上接收所述接入网设备发送的所述反馈信息，所述反馈信息由所述PDSCH承载。
  36. 根据权利要求35所述的装置，其特征在于，
    在所述预设比特位是第二取值时，所述反馈信息还包括传输辅助信息，所述传输辅助信息是用于辅助传输后续上行数据的信息。
  37. 根据权利要求35所述的装置，其特征在于，所述装置还包括：第一处 理模块；
    所述第一处理模块，被配置为在所述第二时频资源上使用目标扰码序列解扰所述DCI的循环冗余校验CRC部分，得到包含所述预设比特位的DCI。
  38. 根据权利要求32或34或37所述的装置，其特征在于，所述装置还包括：
    所述第一接收模块，被配置为接收所述接入网设备配置的所述目标扰码序列；
    或者，
    所述第一处理模块，被配置为根据所述第一时频资源确定所述目标扰码序列。
  39. 根据权利要求38所述的装置，其特征在于，
    所述第一处理模块，被配置为获取所述第一时频资源的频率位置编号f_id和起始子帧编号t_id；根据所述频率位置编号f_id和所述起始子帧编号t_id，计算得到所述扰码序列的编号。
  40. 一种反馈信息传输装置，其特征在于，所述装置包括：
    第二接收模块，被配置为在第一时频资源上接收终端发送的上行数据和第一标识相关信息，所述第一时频资源是所述接入网设备预配置的时频资源，所述第一标识相关信息用于标识所述终端；
    第二发送模块，被配置为在目标信道上发送反馈信息，所述反馈信息包括第二标识相关信息，所述第二标识相关信息用于标识在所述第一时频资源上数据传输成功的终端；
    其中，所述目标信道包括：物理下行控制信道PDCCH，和/或，物理下行共享信道PDSCH。
  41. 根据权利要求40所述的装置，其特征在于，所述第一标识相关信息，包括：
    所述终端的标识信息；
    或，所述上行数据中的部分比特；
    或，所述终端的标识信息中的部分比特；
    或，将所述终端的标识信息通过函数映射后的函数值；
    或，所述终端生成的随机数。
  42. 根据权利要求40所述的装置，其特征在于，所述反馈信息还包括传输辅助信息，所述传输辅助信息是用于辅助传输后续上行数据的信息。
  43. 根据权利要求42所述的装置，其特征在于，所述传输辅助信息包括如下信息中的至少一项：
    数据传输成功所对应的终端的时间提前调整量；
    数据传输成功所对应的终端的功率控制参数；
    数据传输成功所对应的终端的第一指示信息，所述第一指示信息用于指示建立无线资源控制RRC连接；
    数据传输失败所对应的终端的第二指示信息，所述第二指示信息用于指示重传上行数据时的退避backoff时间设置范围；
    数据传输失败所对应的终端的时间提前调整量；
    数据传输失败所对应的终端的功率递增power ramping参数。
  44. 根据权利要求40至43任一所述的装置，其特征在于，
    所述第二发送模块，被配置为在所述第二时频资源上发送所述反馈信息，所述反馈信息由所述PDCCH承载。
  45. 根据权利要求44所述的装置，其特征在于，所述装置还包括：第二处理模块；
    所述第二处理模块，被配置为通过目标扰码序列对下行控制信息DCI的循环冗余校验CRC部分进行加扰；
    所述第二发送模块，被配置为在所述第二时频资源上向所述终端发送所述DCI，所述DCI携带有所述反馈信息，所述DCI由所述PDCCH承载。
  46. 根据权利要求40至43任一所述的装置，其特征在于，
    所述第二发送模块，被配置为在所述第二时频资源上发送调度信息，所述 调度信息用于指示位于第三时频资源的所述PDSCH，所述调度信息由所述PDCCH承载；
    所述第二发送模块，被配置为在所述第三时频资源上发送所述反馈信息，所述反馈信息由所述PDSCH承载。
  47. 根据权利要求46所述的装置，其特征在于，
    所述第二处理模块，被配置为通过目标扰码序列对下行控制信息DCI的循环冗余校验CRC部分进行加扰；
    所述第二发送模块，被配置为在所述第二时频资源上向所述终端发送所述DCI，所述DCI携带有所述调度信息，所述调度信息由所述PDCCH承载。
  48. 根据权利要求40至43任一所述的装置，其特征在于，
    所述第二发送模块，被配置为在所述第二时频资源上发送下行控制信息DCI，所述DCI中包括预设比特位和所述反馈信息，所述DCI由所述PDCCH承载，所述预设比特位是第一取值；
    或者，
    所述第二发送模块，被配置为在所述第二时频资源上发送所述DCI，所述DCI中包括所述预设比特位和所述调度信息，所述DCI由所述PDCCH承载，所述预设比特位是第二取值，所述调度信息用于指示位于第三时频资源的所述PDSCH；所述接入网设备在所述第三时频资源上发送所述反馈信息，所述反馈信息由所述PDSCH承载。
  49. 根据权利要求48所述的装置，其特征在于，
    在所述预设比特位是第二取值时，所述反馈信息包括所述第二标识相关信息和传输辅助信息，所述传输辅助信息是用于辅助传输后续上行数据的信息。
  50. 根据权利要求48所述的装置，其特征在于，所述装置包括：
    所述第二处理模块，被配置为目标扰码序列对所述DCI的循环冗余校验CRC部分进行加扰；
    所述第二发送模块，被配置为在所述第二时频资源上向所述终端发送加扰后的所述DCI。
  51. 根据权利要求45或47或50所述的装置，其特征在于，所述装置包括：
    所述第二处理模块，被配置为向所述终端配置所述目标扰码序列；
    或者，
    所述第二处理模块，被配置为根据所述第一时频资源确定所述目标扰码序列。
  52. 根据权利要求51所述的装置，其特征在于，
    所述第二处理模块，被配置为获取所述第一时频资源的频率位置编号f_id和起始子帧编号t_id；根据所述频率位置编号f_id和所述起始子帧编号t_id，计算得到所述第一扰码序列的编号。
  53. 一种终端，其特征在于，所述终端包括：
    处理器；
    与所述处理器相连的收发器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为加载并执行所述可执行指令以实现如权利要求1至13任一所述的反馈信息传输方法。
  54. 一种接入网设备，其特征在于，所述设备包括：
    处理器；
    与所述处理器相连的收发器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为加载并执行所述可执行指令以实现如权利要求14至26任一所述的反馈信息传输方法。
  55. 一种计算机可读存储介质，其特征在于，所述可读存储介质中存储有至少一条指令、至少一段程序、代码集或指令集，所述至少一条指令、所述至少一段程序、所述代码集或指令集由所述处理器加载并执行以实现如权利要求1至26任一所述的反馈信息传输方法。
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