WO2020143617A1 - Downlink control channel transmission method, terminal, and network side device - Google Patents

Downlink control channel transmission method, terminal, and network side device Download PDF

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Publication number
WO2020143617A1
WO2020143617A1 PCT/CN2020/070667 CN2020070667W WO2020143617A1 WO 2020143617 A1 WO2020143617 A1 WO 2020143617A1 CN 2020070667 W CN2020070667 W CN 2020070667W WO 2020143617 A1 WO2020143617 A1 WO 2020143617A1
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WO
WIPO (PCT)
Prior art keywords
downlink control
control channel
indication information
terminal
indicate
Prior art date
Application number
PCT/CN2020/070667
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French (fr)
Chinese (zh)
Inventor
王磊
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电信科学技术研究院有限公司
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Publication of WO2020143617A1 publication Critical patent/WO2020143617A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/189—Transmission or retransmission of more than one copy of a message
    • 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
    • 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
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a downlink control channel transmission method, terminal, and network side device.
  • the business of communication systems requires higher and higher reliability, for example: Ultra-Reliable Low-Latency Communications (URLLC) services require extremely high reliability .
  • URLLC Ultra-Reliable Low-Latency Communications
  • the current communication system often supports a single transmission of the downlink control channel and cannot support the repeated transmission of the downlink control channel, thereby making the transmission reliability of the communication system relatively poor.
  • Some embodiments of the present disclosure provide a downlink control channel transmission method, terminal, and network side device to solve the problem of poor transmission reliability caused by the communication system not supporting repeated transmission of the downlink control channel.
  • Some embodiments of the present disclosure provide a downlink control channel transmission method, including:
  • the terminal receives indication information sent by the network side device, where the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or is used to indicate whether to enable the repeated transmission mode of the downlink control channel;
  • the terminal receives the downlink control channel according to the instruction information.
  • the instruction information includes:
  • the indication information carried by the group common downlink control channel;
  • DCI Format Downlink Control Information
  • RRC Radio Resource Control
  • the group of common downlink control channels carries indication information of at least one terminal including the terminal;
  • the terminal receiving the downlink control channel according to the instruction information includes:
  • the terminal receives the downlink control channel according to the instruction information of the terminal.
  • the indication information of the terminal is used to indicate: the number of repeated transmissions of the downlink control channel, and/or whether to enable the repeated transmission mode of the downlink control channel;
  • the indication information of the terminal is also used to indicate:
  • the number of repeated transmissions and/or whether the repetitive transmission mode of turning on the downlink control channel is valid during the transmission period of the group of common downlink control channels, or the number of repetitive transmissions and/or whether the downlink control channel is turned on
  • the effective repetitive transmission mode is terminated the next time the terminal successfully receives the group common downlink control channel.
  • the frequency domain resource allocation (Frequency Domain Resource Allocation, FDRA) domain of the DCI is all 1, and the specific bit bits are N bits that are not utilized or reserved in the DCI, where the N It is an integer greater than or equal to 1.
  • the first part of the specific bit is used to indicate that the DCI is used for non-contention random access (Contention Free Random Access, CFRA) scheduling or For the repeated transmission indication of the downlink control channel or for other types of uses;
  • CFRA Contention Free Random Access
  • the second part of the specific bit is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
  • the first partial bit is the first H bits of the specific bit
  • the second partial bit is one or more bits of the specific bit except the first H bits
  • the H is an integer less than the N.
  • the second part of the bit is also used to indicate:
  • the number of repeated transmissions and/or whether the effective time of the repeated transmission mode of the downlink control channel is enabled is enabled.
  • the DCI format is a DCI format used for data scheduling or a DCI format used for fallback downlink scheduling.
  • the number of repeated transmissions of the downlink control channel is a subset of the set of repetitions, where the set of repetitions is predefined by the protocol or configured by high-level signaling.
  • the number of repeated transmissions in the repeated transmission mode is predefined by the protocol or configured by high-level signaling; and/or
  • the number of repeated transmissions and/or the validity period of whether to enable the repeated transmission mode of the downlink control channel is pre-defined by high-level signaling configuration or protocol.
  • Some embodiments of the present disclosure also provide a downlink control channel transmission method, including:
  • the network side device sends indication information to the terminal, where the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or is used to indicate whether to enable the repeated transmission mode of the downlink control channel;
  • the network side device sends the downlink control channel according to the instruction information.
  • the instruction information includes:
  • the indication information carried by the group common downlink control channel;
  • the group of common downlink control channels carries indication information of at least one terminal including the terminal;
  • the network side device sending the downlink control channel according to the instruction information includes:
  • the network side device sends the downlink control channel of the terminal according to the instruction information of the terminal.
  • the indication information of the terminal is used to indicate: the number of repeated transmissions of the downlink control channel, and/or whether to enable the repeated transmission mode of the downlink control channel;
  • the indication information of the terminal is used to indicate that it is also used to indicate:
  • the number of repeated transmissions and/or whether the repeated transmission mode of turning on the downlink control channel is valid within the transmission period of the group of common downlink control channels, or, the number of repeated transmissions and/or whether the downlink control channel is turned on
  • the effective repetitive transmission mode is terminated the next time the terminal successfully receives the group common downlink control channel.
  • the FDRA field of the DCI is all 1, and the specific bit bits are unused or reserved N bits in the DCI, where the N is an integer greater than or equal to 1.
  • the first part of the specific bit is used to indicate that the DCI is used for CFRA scheduling or for a repeated transmission indication of the downlink control channel or For other types of uses;
  • the second part of the specific bit is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
  • the first partial bit is the first H bits of the specific bit
  • the second partial bit is one or more bits of the specific bit except the first H bits
  • the H is an integer less than the N.
  • the second part of the bit is also used to indicate:
  • the number of repeated transmissions and/or whether the effective time of the repeated transmission mode of the downlink control channel is enabled is enabled.
  • the DCI format is a DCI format used for data scheduling or a DCI format used for fallback downlink scheduling.
  • the number of repeated transmissions of the downlink control channel is a subset of the set of repetitions, where the set of repetitions is predefined by the protocol or configured by high-level signaling.
  • the number of repeated transmissions in the repeated transmission mode is predefined by the protocol or configured by high-level signaling; and/or
  • the number of repeated transmissions and/or the validity period of whether to enable the repeated transmission mode of the downlink control channel is pre-defined by high-level signaling configuration or protocol.
  • Some embodiments of the present disclosure also provide a terminal, including:
  • the first receiving module is used to receive indication information sent by the network side device, the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel;
  • the second receiving module is configured to receive the downlink control channel according to the instruction information.
  • the instruction information includes:
  • the indication information carried by the group common downlink control channel;
  • the group of common downlink control channels carries indication information of at least one terminal including the terminal;
  • the second receiving module is configured to receive the downlink control channel according to the instruction information of the terminal.
  • Some embodiments of the present disclosure also provide a network-side device, including:
  • the first sending module is used to send instruction information to the terminal, where the instruction information is used to indicate the number of repeated transmissions of the downlink control channel, and/or to indicate whether to enable the repeated transmission mode of the downlink control channel;
  • the second sending module is configured to send the downlink control channel according to the instruction information.
  • the instruction information includes:
  • the indication information carried by the group common downlink control channel;
  • the group of common downlink control channels carries indication information of at least one terminal including the terminal;
  • the second sending module is configured to send the downlink control channel of the terminal according to the instruction information of the terminal.
  • Some embodiments of the present disclosure also provide a terminal, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor, wherein,
  • the transceiver is used to receive indication information sent by the network side device, the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or is used to indicate whether to enable the repeated transmission mode of the downlink control channel;
  • the transceiver is further configured to receive the downlink control channel according to the instruction information.
  • the instruction information includes:
  • the indication information carried by the group common downlink control channel;
  • the group of common downlink control channels carries indication information of at least one terminal including the terminal;
  • the receiving of the downlink control channel according to the instruction information performed by the transceiver includes:
  • Some embodiments of the present disclosure also provide a network-side device, including:
  • a transceiver a memory, a processor, and a program stored on the memory and executable on the processor, wherein,
  • the transceiver is used to send indication information to the terminal, the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or is used to indicate whether to enable the repeated transmission mode of the downlink control channel;
  • the transceiver is further configured to send the downlink control channel according to the instruction information.
  • the instruction information includes:
  • the indication information carried by the group common downlink control channel;
  • the group of common downlink control channels carries indication information of at least one terminal including the terminal;
  • the downlink control channel transmission performed by the transceiver according to the instruction information includes:
  • the transceiver transmits the downlink control channel of the terminal according to the instruction information of the terminal.
  • Some embodiments of the present disclosure also provide a computer-readable storage medium on which a computer program is stored, which when executed by a processor implements the downlink control channel transmission method on the terminal side provided by some embodiments of the present disclosure , Or when the program is executed by the processor, the steps in the method for transmitting the downlink control channel on the network side device side provided by some embodiments of the present disclosure are implemented.
  • the terminal receives indication information sent by the network side device, where the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or is used to indicate whether to enable the repeated transmission mode of the downlink control channel
  • the terminal receives the downlink control channel according to the instruction information.
  • the indication information sent by the network side device can control the number of repeated transmissions and/or the repeated transmission mode of the downlink control channel, so as to improve the transmission reliability of the downlink control channel.
  • FIG. 1 is a flowchart of a downlink control channel transmission method provided by some embodiments of the present disclosure
  • group common PDCCH group common PDCCH
  • FIG. 4 is a structural diagram of a terminal provided by some embodiments of the present disclosure.
  • FIG. 5 is a structural diagram of a network-side device provided by some embodiments of the present disclosure.
  • FIG. 6 is a structural diagram of another terminal provided by some embodiments of the present disclosure.
  • FIG. 7 is a structural diagram of another network-side device provided by some embodiments of the present disclosure.
  • FIG. 1 is a flowchart of a downlink control channel transmission method provided by some embodiments of the present disclosure. As shown in FIG. 1, the method includes the following steps:
  • the terminal receives indication information sent by the network side device, where the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
  • the terminal receives the downlink control channel according to the instruction information.
  • the above indication information can indicate whether to enable the repeated transmission mode of the physical downlink control channel (Physical Downlink Control Channel, PDCCH) through 1 bit, for example, 1 means to enable repeated transmission, and 0 means to disable repeated transmission.
  • PDCCH Physical Downlink Control Channel
  • the above indication information may indicate the number of repeated transmissions through one or more bits, for example, using 2 bits to indicate that the number of repetitions of the downlink control channel is 0, 1, 2, or 4.
  • the terminal when receiving the indication information, may determine the number of transmissions of the downlink control channel according to the indication of the indication information, or determine whether to enable the repeated transmission mode of the downlink control channel.
  • the repeated transmission mode When the repeated transmission mode is turned on, the downlink control channel can be repeatedly transmitted, otherwise only one transmission is performed.
  • the number of repeated transmissions of the downlink control channel may be the number of repeated transmissions indicated by the indication information.
  • the indication information only indicates to enable the repeated transmission mode of the downlink control channel, but does not indicate the repeated transmission times
  • the repeated transmission times of the downlink control channel may be the default or preset repeated transmission times .
  • the terminal may combine and receive the same message repeatedly transmitted on the downlink control channel according to the instruction information, so as to prevent the terminal from receiving the same message repeatedly transmitted multiple times And merge. It can be seen from this that the terminal can reduce the complexity of receiving the downlink control channel according to the instruction information. Of course, there is no limitation on this. For example, in the case of indicating that the number of repeated transmissions is multiple, or the repeated transmission mode in which the downlink control channel is turned on, the terminal may first try to separately receive each downlink control channel, and if not successful, further Combine decoding for multiple transmissions.
  • the indication information includes:
  • the indication information carried by the group common downlink control channel;
  • the indication information is carried through the group of common downlink control channels, the indication information is carried in the MAC CE, or the indication information is carried in RRC signaling, which can improve the flexibility of the indication information.
  • the indication information may also be transmitted to the terminal in other forms, which is not limited herein.
  • the network side device may notify the terminal of the number of repeated transmissions of the downlink control channel through the above indication information carried in the MAC CE.
  • the terminal can perform combined reception of the downlink control channel according to the instruction information carried in the MAC CE.
  • the network side device may also configure the downlink control channel repeated transmission indication information for the terminal through RRC signaling.
  • the number of repeated transmissions of the downlink control channel of the terminal is configured by RRC signaling to K times.
  • the terminal After receiving the high-level signaling, the terminal may perform combined reception of K times of downlink control channel transmission.
  • this does not limit some embodiments of the present disclosure.
  • the terminal may first try to receive each downlink control channel transmission separately, and if unsuccessful, further merge and decode multiple downlink control channel transmissions.
  • the group common downlink control channel is a group common physical downlink control channel (group common PDCCH).
  • group common PDCCH group common physical downlink control channel
  • the indication information carried by the group of common downlink control channels may be valid for a group of terminals, and each terminal in the group of terminals receives the downlink control channel according to the indication information.
  • Embodiment 3 The DCI carried in the group common PDCCH contains activation/deactivation information of repeated transmission of downlink control channels of multiple terminals (that is, whether to enable the repeated transmission mode of the downlink control channel). Indicate whether the terminal has enabled the repeated transmission mode of the downlink control channel. Specifically, for example, when the 1-bit indication field is equal to 1, it indicates that the repeated transmission mode of the downlink control channel is turned on, and when it is equal to 0, it indicates that the repeated transmission mode of the downlink control channel is turned off.
  • the number of repeated transmissions of the downlink control channel (here, the number of repeated transmissions is equal to H times as an example) can be configured through high-level signaling or defined through a protocol. If the repeat transmission mode of the downlink control channel is enabled, the base station will repeatedly transmit the downlink control channel H times, and the terminal will receive the downlink control channel H times in combination; otherwise, the downlink control channel will only be sent once.
  • the group of common downlink control channels carries indication information including at least one terminal within the terminal;
  • the terminal receiving the downlink control channel according to the instruction information includes:
  • the terminal receives the downlink control channel according to the instruction information of the terminal.
  • the group of common downlink control channels may carry indication information of multiple terminals, and the indication information of different terminals may be the same or different, which is not limited.
  • Each terminal may separately obtain corresponding indication information to determine the number of repeated transmissions of the downlink control channel and/or whether to enable the repeated transmission mode, and perform the repeated transmission of the downlink control channel according to the determined situation of the repeated transmission of the downlink control channel.
  • the indication information of the terminal may be used to indicate: the number of repeated transmissions of the downlink control channel, and/or whether to enable the repeated transmission mode of the downlink control channel;
  • the indication information of the terminal may also be used to indicate:
  • the number of repeated transmissions and/or whether the repetitive transmission mode of turning on the downlink control channel is valid during the transmission period of the group of common downlink control channels, or the number of repetitive transmissions and/or whether the downlink control channel is turned on
  • the effective repetitive transmission mode is terminated the next time the terminal successfully receives the group common downlink control channel.
  • valid in the transmission period it may mean that the terminal determines the number of repeated transmissions of the downlink control channel and/or whether to turn on the downlink according to the indication information only during the transmission period of the group of common downlink control channels In the repeated transmission mode of the control channel, after the transmission period of the group of common downlink control channels is exceeded, the default repeated transmission mode of the downlink control channel can be restored or the repeated transmission mode of the downlink control channel can be turned off.
  • the termination of the next successful reception of the group common downlink control channel may refer to the determination of the downlink control according to the indication information carried by the group common downlink control channel before the terminal successfully receives the group common downlink control channel the next time The number of repeated transmissions of the channel and/or whether to enable the repeated transmission mode of the downlink control channel.
  • the number of repeated transmissions of the downlink control channel and/or whether to enable the repeated transmission mode of the downlink control channel can be determined according to the indication information carried by the group of common downlink control channels. Use the indication information carried by the group of common downlink control channels to timely modify the repeated transmission state of the terminal to the downlink control channel.
  • the timeliness of the indication information can be controlled, and the state in which the terminal repeatedly transmits the downlink control channel can be changed in time to improve the timeliness of the indication information.
  • the DCI frequency domain resource allocation FDRA domain is all 1, and the specific bit is N bits that are not utilized or reserved in the DCI, where N is greater than Or an integer equal to 1.
  • all the FDRA fields are 1 can indicate that the FDRA field is not used, or that the specific bit indicates that the indication information is indicated, so that when the terminal resolves that the FDRA field is all 1, it can be based on the specific bit Bit determines the above instructions.
  • FDRA field may also be other numerical values, etc., which is not specifically limited here.
  • the N bits may determine the status of the repeated transmission indicated by the N bits through protocol presets and high-level signaling instructions.
  • N when N is equal to 1, it can be determined by the protocol preset that when the content of 1 bit is equal to 1, it means that the repeat transmission mode of the downlink control channel is turned on; when the content of the 1 bit is equal to 0, it means that the downlink is turned off Repeat transmission mode of the control channel.
  • N is an integer greater than 1, the first part of the specific bit is used to indicate that the DCI is used for CFRA scheduling or for the repeated transmission indication of the downlink control channel or used For other types of uses;
  • the second part of the specific bit is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
  • the above-mentioned other types of uses may indicate uses other than the above-mentioned CFRA scheduling and downlink control channel repetitive transmission instructions, for example: scheduling for other uses, etc., which are not limited, that is, the first part above
  • the bit is not limited to distinguish between the above-mentioned CFRA scheduling or the repeated transmission indication of the downlink control channel.
  • the functions of the DCI can be distinguished by the first part of bits, and avoid mixing with the existing functions scheduled by the CFRA.
  • the first partial bit is the first H bits of the specific bit
  • the second partial bit is one or more bits of the specific bit except the first H bits
  • the H is an integer less than the N.
  • first partial bit may also be set to the last H bits of the specific bit
  • second partial bit may be one or more of the specific bit except the last H bits bit, not limited here.
  • the second part of the bit is also used to indicate:
  • the number of repeated transmissions and/or whether the effective time of the repeated transmission mode of the downlink control channel is enabled is enabled.
  • the effective time may be a specific length of time, for example, duration, or may be invalid when the DCI format is successfully received next time, so as to improve the timeliness of the indication information carried by the DCI format.
  • the DCI format is a DCI format used for data scheduling or a DCI format used for fallback downlink scheduling.
  • the DCI format of the data scheduling may be DCI format 1-0 or the DCI format defined in other communication systems.
  • the DCI format of the fallback downlink scheduling may be a DCI format newly introduced in some embodiments of the present disclosure, or a DCI format defined in a future communication system (for example, a 5G communication system, etc.) used for fallback downlink scheduling to improve the DCI Scope of format.
  • the DCI format used for data scheduling or the DCI format used for fallback downlink scheduling can also be scrambled by a cell radio network temporary identifier (Cell Radio Network Temporary Identifier, C-RNTI).
  • C-RNTI Cell Radio Network Temporary Identifier
  • Embodiment 4 The network-side device indicates whether to enable the repeated transmission mode of the downlink control channel through DCI format 1-0, and notifies the number of repeated transmissions.
  • the network side device sends the downlink control channel according to the indication information in DCI format 1-0.
  • the FDRA field in the DCI format 1-0 is all 1, and scrambling is performed through the C-RNTI corresponding to the terminal.
  • the unused bits of the last N bits carried in the DCI that is, reserved bits, and carry at least the following two types of information:
  • DCI type indication information used to distinguish whether the DCI is used for CFRA scheduling or PDCCH repetition mode indication
  • the duration of the number of repeated transmissions of the downlink control channel is the duration of the number of repeated transmissions of the downlink control channel.
  • the aforementioned R may be equal to the aforementioned N.
  • DCI format 1-0 does not include an indication field indicating the duration of repeated transmission of the downlink control channel. After detecting that the DCI format 1-0 is received in the search space, the terminal parses the bit field in it.
  • the FDRA field is found to be all 1, then the first information field in the 10 bits after analysis, that is, in the R bits
  • the first H bits of the bit if the bit field status is 0, it means that the DCI is used for CFRA, and the CFRA related information is obtained according to the CFRA analysis method; if the bit field status is 1, it means that the DCI is used to indicate the Repeat transmission mode of the downlink control channel of the terminal, and further analyze the information field composed of the second and third bits in the last 10 bits to determine the number of repeated transmission of the downlink control channel.
  • the number of repeated transmissions is determined according to Table 2 below:
  • bit field and the number of repetitions corresponding to each state are not limited here.
  • the correspondence between the bit field and the number of repeated transmissions in Table 2 can be defined in a manner predefined by the protocol, and can also be configured through RRC signaling. If the configuration is performed through high-level signaling, any corresponding relationship different from the above table may be configured through high-level signaling.
  • the number of repeated transmissions of the downlink control channel is a subset of the set of repetitions, where the set of repetitions is pre-defined by the protocol or configured by high-level signaling.
  • the set of repetition numbers may include various situations of the number of repeated transmissions of the downlink control channel, for example, the set of repetition numbers includes 4 subsets: 0 repetitions, 1 repetition, 2 repetitions, and 4 repetitions Wait.
  • the number of repeated transmissions of the downlink control channel by any terminal may be any of the four types of repetitions, that is, a subset of the set of repetitions.
  • the set of repetition times may also include other repetition times, and the set of repetition times may also be expressed in other forms than numbers, which is not limited herein.
  • a subset of the number of repetitions can be selected as the number of repetitions of the downlink control channel from a plurality of repetitions predefined in the protocol or configured by high-level signaling, reducing the complexity of the process of determining the number of repetitions of the downlink control channel, and also The overhead can be reduced because the above-mentioned indication information may be an index of the above-mentioned set of repetition times.
  • the number of repeated transmissions in the repeated transmission mode is predefined by the protocol or configured by high-level signaling.
  • the number of repetitive transmissions of the repetitive transmission mode can be set in a manner predefined by a protocol or configured by high-level signaling, so as to expand the selection range of the number of repetitive transmissions.
  • the number of repeated transmissions and/or whether the validity period of the repeated transmission mode of the downlink control channel is enabled is configured by high-layer signaling or predefined by the protocol.
  • the validity period may include at least one of the number of repeated transmissions and/or whether the repeated transmission mode of the downlink control channel is effective, invalid and effective.
  • the validity period of the indication message can be set through a high-level signaling configuration or a protocol pre-defined manner to improve the timeliness of the indication message.
  • the terminal receives indication information sent by the network side device, where the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or is used to indicate whether to enable the repeated transmission mode of the downlink control channel
  • the terminal receives the downlink control channel according to the instruction information.
  • the indication information sent by the network side device can control the number of repeated transmissions and/or the repeated transmission mode of the downlink control channel, so as to improve the transmission reliability of the downlink control channel.
  • FIG. 2 is a flowchart of another downlink control channel transmission method provided by some embodiments of the present disclosure. As shown in FIG. 2, the method includes the following steps:
  • the network side device sends instruction information to the terminal, where the instruction information is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
  • the network side device sends the downlink control channel according to the instruction information.
  • the instruction information is the same as the instruction message received by the terminal in the method embodiment shown in FIG. 1.
  • the network-side device may repeatedly send the data scheduling message of the downlink control channel according to the number of repetitions of the downlink control channel .
  • the indication of the indication message is used to determine the number of repeated transmissions in the downlink control channel transmission process by the network side device, so as to improve the reliability of the downlink control channel.
  • the instruction information includes:
  • the indication information carried by the group common downlink control channel;
  • RRC signaling The indication information carried by RRC signaling (RRC signaling).
  • the group of common downlink control channels carries indication information of at least one terminal including the terminal;
  • the network side device sending the downlink control channel according to the instruction information includes:
  • the network side device sends the downlink control channel of the terminal according to the instruction information of the terminal.
  • the indication information of the terminal is used to indicate: the number of repeated transmissions of the downlink control channel, and/or whether to enable the repeated transmission mode of the downlink control channel;
  • the indication information of the terminal is used to indicate that it is also used to indicate:
  • the number of repeated transmissions and/or whether the repetitive transmission mode of turning on the downlink control channel is valid during the transmission period of the group of common downlink control channels, or the number of repetitive transmissions and/or whether the downlink control channel is turned on
  • the effective repetitive transmission mode is terminated the next time the terminal successfully receives the group common downlink control channel.
  • the FDRA field of the DCI is all 1, and the specific bit bits are unused or reserved N bits in the DCI, where the N is an integer greater than or equal to 1.
  • the first part of the specific bit is used to indicate that the DCI is used for CFRA scheduling or for a repeated transmission indication of the downlink control channel or For other types of uses;
  • the second part of the specific bit is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
  • the first partial bit is the first H bits of the specific bit
  • the second partial bit is one or more bits of the specific bit except the first H bits
  • the H is an integer less than the N.
  • the second part of the bit is also used to indicate:
  • the number of repeated transmissions and/or whether the effective time of the repeated transmission mode of the downlink control channel is enabled is enabled.
  • the DCI format is a DCI format used for data scheduling or a DCI format used for fallback downlink scheduling.
  • the number of repeated transmissions of the downlink control channel is a subset of the set of repetitions, where the set of repetitions is predefined by the protocol or configured by high-level signaling.
  • the number of repeated transmissions in the repeated transmission mode is predefined by the protocol or configured by high-level signaling; and/or
  • the number of repeated transmissions and/or the validity period of whether to enable the repeated transmission mode of the downlink control channel is pre-defined by high-level signaling configuration or protocol.
  • this embodiment is an implementation of the network-side device corresponding to the embodiment shown in FIG. 1.
  • the relevant description of the embodiment shown in FIG. 2. This embodiment will not go into details, and the same beneficial effects can also be achieved.
  • the transmission method of the downlink control channel will be exemplified below with reference to the steps performed by the terminal and the network side device.
  • UE A is a vehicle-to-everything (V2X) terminal, power grid terminal or AR/VR (virtual reality/ Augmented reality) terminal etc.
  • V2X vehicle-to-everything
  • AR/VR virtual reality/ Augmented reality
  • the base station instructs the data of multiple terminals to schedule the number of repeated transmissions of the downlink control channel through the DCI carried on the group common downlink control channel (group common PDCCH).
  • group common PDCCH group common downlink control channel
  • the DCI contains N information domains (that is, N indication information), each information domain corresponds to one or more terminals, and the correspondence between the terminal and the information domain location is configured through RRC signaling and used
  • the specific wireless network temporary identity (Radio Network Temporary Identity, RNTI) is scrambled, for example, by R-RNTI.
  • the size of the DCI is the same as the size of the DCI format 1-0 transmitted in the common search space (Common Search Space, CSS).
  • the DCI carries the bit field of the number of repeated transmissions of the downlink control channels of N terminals (that is, the above indication information).
  • the byte length corresponding to each bit field is 2 bits, and the relationship between the repetition times of the 2 bit bit field and the downlink control channel is shown in Table 3: 00 indicates that the downlink control channel does not need to be repeated, and 01 indicates that it needs to be repeated once , 10 means need to repeat 2 times, 11 means need to repeat 4 times.
  • Bit field of the number of repetitions of the downlink control channel repeat times 00 0 01 1 10 2 11 4
  • the length of the indication field of the number of repetitions of the downlink control channel and the number of repetitions corresponding to each state are not limited herein.
  • the relationship between the state of the repetition count indication information of the downlink control channel and the repetition count is not limited, that is, the high-level signaling can be configured with any corresponding relationship different from the above table.
  • UE A and UE B receive the group common PDCCH carrying the indication information, and after receiving the group common PDCCH, determine the number of repetitions of the data scheduling downlink control channel.
  • the information field corresponding to the number of repeated transmissions of the downlink control channel corresponding to UEA is 01
  • the information field corresponding to the number of repeated transmissions of the downlink control channel corresponding to UEB is 00
  • the downlink control channel of UEA needs to be transmitted twice repeatedly, UEB
  • the downlink control channel does not need to be repeatedly transmitted.
  • This solution can dynamically adjust the number of repeated transmissions of its downlink control channel according to different channel conditions of the terminal. For example, when the channel condition of UE A is very good, and the channel condition of UE B deteriorates, the downlink control channel of UE B can be instructed to repeatedly transmit and receive, so as to reduce the complexity of the terminal and reduce the delay.
  • the indication information carried by the group common PDCCH is valid for the time slot between two group common PDCCH transmissions, or until the next group common indication PDCCH carrying the indication information is successfully received.
  • the specific method for PDCCH repeated transmission is not limited.
  • the PDCCH can be continuously transmitted H times, and then the physical layer downlink shared channel (Physical Downlink Shared Channel, PDSCH) can be transmitted after the PDCCH transmission is completed; or the PDCCH and PDSCH are bundled and transmitted, that is, each PDCCH transmission is followed by one Correspondingly scheduled PDSCH transmission.
  • the physical layer downlink shared channel Physical Downlink Shared Channel, PDSCH
  • FIG. 4 is a structural diagram of a terminal provided by an embodiment of the present invention.
  • the terminal 400 includes:
  • the first receiving module 401 is used to receive indication information sent by the network side device, the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel ;
  • the second receiving module 402 is configured to receive the downlink control channel according to the instruction information.
  • the instruction information includes:
  • the indication information carried by the group common downlink control channel;
  • the group of common downlink control channels carries indication information of at least one terminal including the terminal;
  • the second receiving module 402 is configured to receive the downlink control channel according to the indication information of the terminal.
  • the indication information of the terminal is used to indicate: the number of repeated transmissions of the downlink control channel, and/or whether to enable the repeated transmission mode of the downlink control channel;
  • the indication information of the terminal is also used to indicate:
  • the number of repeated transmissions and/or whether the repetitive transmission mode of turning on the downlink control channel is valid during the transmission period of the group of common downlink control channels, or the number of repetitive transmissions and/or whether the downlink control channel is turned on
  • the effective repetitive transmission mode is terminated the next time the terminal successfully receives the group common downlink control channel.
  • the frequency domain resource allocation of the DCI is all 1, and the specific bit is N bits that are not utilized or reserved in the DCI, where the N is an integer greater than or equal to 1.
  • the first part of the specific bit is used to indicate that the DCI is used for scheduling of non-contention random access CFRA or used for the downlink control channel Repeated transmission instructions or for other types of uses;
  • the second part of the specific bit is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
  • the first partial bit is the first H bits of the specific bit
  • the second partial bit is one or more bits of the specific bit except the first H bits
  • the H is an integer less than the N.
  • the second part of the bit is also used to indicate:
  • the number of repeated transmissions and/or whether the effective time of the repeated transmission mode of the downlink control channel is enabled is enabled.
  • the DCI format is a DCI format used for data scheduling or a DCI format used for fallback downlink scheduling.
  • the number of repeated transmissions of the downlink control channel is a subset of the set of repetitions, where the set of repetitions is predefined by the protocol or configured by high-level signaling.
  • the number of repeated transmissions in the repeated transmission mode is predefined by the protocol or configured by high-level signaling; and/or
  • the number of repeated transmissions and/or the validity period of whether to enable the repeated transmission mode of the downlink control channel is pre-defined by high-level signaling configuration or protocol.
  • the above-mentioned terminal 400 in this embodiment may be a terminal of any implementation manner in the method embodiment in some embodiments of the present disclosure, and any implementation manner of the terminal in the method embodiment in some embodiments of the present disclosure may be implemented by this embodiment.
  • the implementation of the above-mentioned terminal 400 in the example and the same beneficial effects will not be repeated here.
  • FIG. 5 is a structural diagram of a network-side device provided by the present disclosure.
  • the network-side device 500 includes:
  • the first sending module 501 is used to send instruction information to the terminal, where the instruction information is used to indicate the number of repeated transmissions of the downlink control channel, and/or to indicate whether to enable the repeated transmission mode of the downlink control channel;
  • the second sending module 502 is configured to send the downlink control channel according to the instruction information.
  • the instruction information includes:
  • the indication information carried by the group common downlink control channel;
  • the group of common downlink control channels carries indication information of at least one terminal including the terminal;
  • the second sending module 502 is configured to send the downlink control channel of the terminal according to the instruction information of the terminal.
  • the indication information of the terminal is used to indicate: the number of repeated transmissions of the downlink control channel, and/or whether to enable the repeated transmission mode of the downlink control channel;
  • the indication information of the terminal is used to indicate that it is also used to indicate:
  • the number of repeated transmissions and/or whether the repetitive transmission mode of turning on the downlink control channel is valid during the transmission period of the group of common downlink control channels, or the number of repetitive transmissions and/or whether the downlink control channel is turned on
  • the effective repetitive transmission mode is terminated the next time the terminal successfully receives the group common downlink control channel.
  • the FDRA field of the DCI is all 1, and the specific bit bits are unused or reserved N bits in the DCI, where the N is an integer greater than or equal to 1.
  • the first part of the specific bit is used to indicate that the DCI is used for CFRA scheduling or for a repeated transmission indication of the downlink control channel or For other types of uses;
  • the second part of the specific bit is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
  • the first partial bit is the first H bits of the specific bit
  • the second partial bit is one or more bits of the specific bit except the first H bits
  • the H is an integer less than the N.
  • the second part of the bit is also used to indicate:
  • the number of repeated transmissions and/or whether the effective time of the repeated transmission mode of the downlink control channel is enabled is enabled.
  • the DCI format is a DCI format used for data scheduling or a DCI format used for fallback downlink scheduling.
  • the number of repeated transmissions of the downlink control channel is a subset of the set of repetitions, where the set of repetitions is predefined by the protocol or configured by high-level signaling.
  • the number of repeated transmissions in the repeated transmission mode is predefined by the protocol or configured by high-level signaling; and/or
  • the number of repeated transmissions and/or the validity period of whether to enable the repeated transmission mode of the downlink control channel is pre-defined by high-level signaling configuration or protocol.
  • the above network-side device 500 in this embodiment may be a network-side device in any implementation manner in the method embodiments in some embodiments of the present disclosure, and any implementation of the network-side device in method embodiments in some embodiments of the present disclosure
  • the methods can be implemented by the network side device 500 in this embodiment, and the same beneficial effects are achieved, which will not be repeated here.
  • FIG. 6 is a structural diagram of another terminal provided by some embodiments of the present disclosure.
  • the terminal includes: a transceiver 610, a memory 620, a processor 600, and stored in the memory 620 A program that can be run on the processor 600, where:
  • the transceiver 610 is configured to receive indication information sent by a network side device, the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel ;
  • the transceiver 610 is further configured to receive the downlink control channel according to the instruction information.
  • the transceiver 1510 can be used to receive and send data under the control of the processor 1500.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 600 and various circuits of the memory represented by the memory 620 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, etc., which are well known in the art, and therefore, they will not be further described in this article.
  • the bus interface provides an interface.
  • the transceiver 610 may be a plurality of elements, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium.
  • the processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 600 when performing operations.
  • the memory 620 is not limited to the terminal, and the memory 620 and the processor 600 may be separated in different geographic locations.
  • the instruction information includes:
  • the indication information carried by the group common downlink control channel;
  • the group of common downlink control channels carries indication information of at least one terminal including the terminal;
  • the step performed by the transceiver to receive the downlink control channel according to the instruction information specifically includes:
  • the indication information of the terminal is used to indicate: the number of repeated transmissions of the downlink control channel, and/or whether to enable the repeated transmission mode of the downlink control channel;
  • the indication information of the terminal is also used to indicate:
  • the number of repeated transmissions and/or whether the repetitive transmission mode of turning on the downlink control channel is valid during the transmission period of the group of common downlink control channels, or the number of repetitive transmissions and/or whether the downlink control channel is turned on
  • the effective repetitive transmission mode is terminated the next time the terminal successfully receives the group common downlink control channel.
  • the FDRA field of the DCI is all 1, and the specific bit bits are unused or reserved N bits in the DCI, where the N is an integer greater than or equal to 1.
  • the first part of the specific bit is used to indicate that the DCI is used for scheduling of non-contention random access CFRA or used for the downlink control channel Repeated transmission instructions or for other types of uses;
  • the second part of the specific bit is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
  • the first partial bit is the first H bits of the specific bit
  • the second partial bit is one or more bits of the specific bit except the first H bits
  • the H is an integer less than the N.
  • the second part of the bit is also used to indicate:
  • the number of repeated transmissions and/or whether the effective time of the repeated transmission mode of the downlink control channel is enabled is enabled.
  • the DCI format is a DCI format used for data scheduling or a DCI format used for fallback downlink scheduling.
  • the number of repeated transmissions of the downlink control channel is a subset of the set of repetitions, where the set of repetitions is predefined by the protocol or configured by high-level signaling.
  • the number of repeated transmissions in the repeated transmission mode is predefined by the protocol or configured by high-level signaling; and/or
  • the number of repeated transmissions and/or the validity period of whether to enable the repeated transmission mode of the downlink control channel is pre-defined by high-level signaling configuration or protocol.
  • the above terminal in this embodiment may be a terminal of any implementation manner in the method embodiment in some embodiments of the present disclosure, and any implementation manner of the terminal in the method embodiment in some embodiments of the present disclosure may be used in this embodiment.
  • the implementation of the above terminal in and the same beneficial effects will not be repeated here.
  • FIG. 7 is a structural diagram of another network-side device provided by some embodiments of the present disclosure.
  • the network-side device includes: a transceiver 710, a memory 720, a processor 700, and stored in A program on the memory 720 that can run on the processor, where:
  • the transceiver 710 is used to send instruction information to the terminal, where the instruction information is used to indicate the number of repeated transmissions of the downlink control channel, and/or to indicate whether to enable the repeated transmission mode of the downlink control channel;
  • the transceiver 710 is further configured to send the downlink control channel according to the instruction information.
  • the transceiver 710 can be used to receive and send data under the control of the processor 700.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 700 and various circuits of the memory represented by the memory 720 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, etc., which are well known in the art, and therefore, they will not be further described in this article.
  • the bus interface provides an interface.
  • the transceiver 710 may be a plurality of elements, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium.
  • the processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 when performing operations.
  • the memory 720 is not limited to only on the network side device, and the memory 720 and the processor 700 may be separated in different geographic locations.
  • the instruction information includes:
  • the indication information carried by the group common downlink control channel;
  • the group of common downlink control channels carries indication information of at least one terminal including the terminal;
  • the downlink control channel transmission performed by the transceiver 710 according to the instruction information includes:
  • the transceiver 710 sends the downlink control channel of the terminal according to the instruction information of the terminal.
  • the indication information of the terminal is used to indicate: the number of repeated transmissions of the downlink control channel, and/or whether to enable the repeated transmission mode of the downlink control channel;
  • the indication information of the terminal is used to indicate that it is also used to indicate:
  • the number of repeated transmissions and/or whether the repetitive transmission mode of turning on the downlink control channel is valid during the transmission period of the group of common downlink control channels, or the number of repetitive transmissions and/or whether the downlink control channel is turned on
  • the effective repetitive transmission mode is terminated the next time the terminal successfully receives the group common downlink control channel.
  • the FDRA field of the DCI is all 1, and the specific bit bits are unused or reserved N bits in the DCI, where the N is an integer greater than or equal to 1.
  • the first part of the specific bit is used to indicate that the DCI is used for CFRA scheduling or for a repeated transmission indication of the downlink control channel or For other types of uses;
  • the second part of the specific bit is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
  • the first partial bit is the first H bits of the specific bit
  • the second partial bit is one or more bits of the specific bit except the first H bits
  • the H is an integer less than the N.
  • the second part of the bit is also used to indicate:
  • the number of repeated transmissions and/or whether the effective time of the repeated transmission mode of the downlink control channel is enabled is enabled.
  • the DCI format is a DCI format used for data scheduling or a DCI format used for fallback downlink scheduling.
  • the number of repeated transmissions of the downlink control channel is a subset of the set of repetitions, where the set of repetitions is predefined by the protocol or configured by high-level signaling.
  • the number of repeated transmissions in the repeated transmission mode is predefined by the protocol or configured by high-level signaling; and/or
  • the number of repeated transmissions and/or the validity period of whether to enable the repeated transmission mode of the downlink control channel is pre-defined by high-level signaling configuration or protocol.
  • the above network-side device in this embodiment may be a network-side device in any implementation manner in the method embodiments in some embodiments of the present disclosure, and any implementation in the network-side device in method embodiments in some embodiments of the present disclosure. Both can be realized by the above network side device in this embodiment, and achieve the same beneficial effects, which will not be repeated here.
  • Some embodiments of the present disclosure also provide a computer-readable storage medium on which a computer program is stored, wherein, when the program is executed by a processor, a method for transmitting a downlink control channel on the terminal side provided by some embodiments of the present disclosure is implemented. Steps, or when the program is executed by the processor, implement the steps in the method for transmitting a downlink control channel on the network side device side provided by some embodiments of the present disclosure.
  • the disclosed method and apparatus may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical, or other forms.
  • each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware, or in the form of hardware plus software functional units.
  • the above integrated unit implemented in the form of a software functional unit may be stored in a computer-readable storage medium.
  • the above software functional unit is stored in a storage medium, and includes several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute part of the transmission method of the downlink control channel described in various embodiments of the present disclosure step.
  • the foregoing storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

Abstract

The present invention provides a downlink control channel transmission method, a terminal, and a network device. The method comprises: a terminal receives indication information sent by a network side device, the indication information being used for indicating the number of repeated transmissions of a downlink control channel, and/or being used for indicating whether to start a repeat transmission mode of the downlink control channel; the terminal receives the downlink control channel according to the indication information.

Description

一种下行控制信道的传输方法、终端和网络侧设备Downlink control channel transmission method, terminal and network side equipment
相关申请的交叉引用Cross-reference of related applications
本申请主张在2019年1月11日在中国提交的中国专利申请号No.201910028441.5的优先权，其全部内容通过引用包含于此。This application claims the priority of Chinese Patent Application No. 201910028441.5 filed in China on January 11, 2019, the entire contents of which are hereby incorporated by reference.
技术领域Technical field
本公开涉及通信技术领域，尤其涉及一种下行控制信道的传输方法、终端和网络侧设备。The present disclosure relates to the field of communication technologies, and in particular, to a downlink control channel transmission method, terminal, and network side device.
背景技术Background technique
随着通信技术的发展，通信系统(例如：5G系统)的业务对可靠性要求越来越高，例如：高可靠低时延通信(Ultra Reliable Low Latency Communications，URLLC)业务需要极高的可靠性。而目前通信系统往往是支持下行控制信道的单次传输，无法支持下行控制信道的重复传输，从而使得通信系统的传输可靠性比较差。With the development of communication technology, the business of communication systems (for example: 5G system) requires higher and higher reliability, for example: Ultra-Reliable Low-Latency Communications (URLLC) services require extremely high reliability . However, the current communication system often supports a single transmission of the downlink control channel and cannot support the repeated transmission of the downlink control channel, thereby making the transmission reliability of the communication system relatively poor.
发明内容Summary of the invention
本公开一些实施例提供一种下行控制信道的传输方法、终端和网络侧设备，以解决通信系统不支持下行控制信道的重复传输而造成的传输可靠性较差的问题。Some embodiments of the present disclosure provide a downlink control channel transmission method, terminal, and network side device to solve the problem of poor transmission reliability caused by the communication system not supporting repeated transmission of the downlink control channel.
本公开一些实施例提供一种下行控制信道的传输方法，包括：Some embodiments of the present disclosure provide a downlink control channel transmission method, including:
终端接收网络侧设备发送的指示信息，所述指示信息用于指示下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式；The terminal receives indication information sent by the network side device, where the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or is used to indicate whether to enable the repeated transmission mode of the downlink control channel;
所述终端根据所述指示信息，对所述下行控制信道进行接收。The terminal receives the downlink control channel according to the instruction information.
可选的，所述指示信息包括：Optionally, the instruction information includes:
组公共下行控制信道携带的指示信息；或者The indication information carried by the group common downlink control channel; or
第一下行控制信息格式(Downlink Control Information，DCI format) 的DCI的特定比特(bit)位中的指示信息；或者Indication information in specific bits of DCI in the first downlink control information format (Downlink Control Information, DCI format); or
媒体接入控制控制单元(Media Access Control Address Control Unit，MAC CE)中携带的指示信息；或者Instruction information carried in the Media Access Control Control Unit (Media Access Control Address Unit (MAC) CE); or
无线资源控制(Radio Resource Control，RRC)信令携带的指示信息。Indication information carried in Radio Resource Control (RRC) signaling.
可选的，所述组公共下行控制信道携带含所述终端在内的至少一个终端的指示信息；Optionally, the group of common downlink control channels carries indication information of at least one terminal including the terminal;
所述终端根据所述指示信息，对所述下行控制信道进行接收，包括：The terminal receiving the downlink control channel according to the instruction information includes:
所述终端根据所述终端的指示信息，对所述下行控制信道进行接收。The terminal receives the downlink control channel according to the instruction information of the terminal.
可选的，所述终端的指示信息用于指示：下行控制信道的重复传输次数，和/或，是否开启所述下行控制信道的重复传输模式；Optionally, the indication information of the terminal is used to indicate: the number of repeated transmissions of the downlink control channel, and/or whether to enable the repeated transmission mode of the downlink control channel;
且所述终端的指示信息还用于指示：And the indication information of the terminal is also used to indicate:
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式在所述组公共下行控制信道的传输周期内有效，或者，所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的有效在所述终端下一次成功接收到组公共下行控制信道终止。The number of repeated transmissions and/or whether the repetitive transmission mode of turning on the downlink control channel is valid during the transmission period of the group of common downlink control channels, or the number of repetitive transmissions and/or whether the downlink control channel is turned on The effective repetitive transmission mode is terminated the next time the terminal successfully receives the group common downlink control channel.
可选的，所述DCI的频域资源分配(Frequency Domain Resource Allocation，FDRA)域全为1，所述特定bit位为所述DCI中未利用或者预留的N个bit，其中，所述N为大于或者等于1的整数。Optionally, the frequency domain resource allocation (Frequency Domain Resource Allocation, FDRA) domain of the DCI is all 1, and the specific bit bits are N bits that are not utilized or reserved in the DCI, where the N It is an integer greater than or equal to 1.
可选的，在所述N为大于1的整数的情况下，所述特定bit位的第一部分bit用于指示所述DCI用于非竞争随机接入(Contention Free Random Access，CFRA)的调度或者用于所述下行控制信道的重复传输指示或者用于其他类型的用途；Optionally, in the case where N is an integer greater than 1, the first part of the specific bit is used to indicate that the DCI is used for non-contention random access (Contention Free Random Access, CFRA) scheduling or For the repeated transmission indication of the downlink control channel or for other types of uses;
所述特定bit位的第二部分bit用于指示所述下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式。The second part of the specific bit is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
可选的，所述第一部分bit为所述特定bit位中的前H个bit，所述第二部分bit为所述特定bit位除所述前H个bit之外的一个或者多个bit，所述H为小于所述N的整数。Optionally, the first partial bit is the first H bits of the specific bit, and the second partial bit is one or more bits of the specific bit except the first H bits, The H is an integer less than the N.
可选的，所述第二部分bit还用于指示：Optionally, the second part of the bit is also used to indicate:
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的 生效时间。The number of repeated transmissions and/or whether the effective time of the repeated transmission mode of the downlink control channel is enabled.
可选的，所述DCI format为用于数据调度的DCI format或者用于回退下行调度的DCI format。Optionally, the DCI format is a DCI format used for data scheduling or a DCI format used for fallback downlink scheduling.
可选的，所述下行控制信道的重复传输次数为重复次数集合的一个子集，其中，所述重复次数集合为协议预定义或者高层信令配置的。Optionally, the number of repeated transmissions of the downlink control channel is a subset of the set of repetitions, where the set of repetitions is predefined by the protocol or configured by high-level signaling.
可选的，所述重复传输模式的重复传输次数为协议预定义或者高层信令配置的；和/或Optionally, the number of repeated transmissions in the repeated transmission mode is predefined by the protocol or configured by high-level signaling; and/or
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的有效期为高层信令配置或者协议预定义。The number of repeated transmissions and/or the validity period of whether to enable the repeated transmission mode of the downlink control channel is pre-defined by high-level signaling configuration or protocol.
本公开一些实施例还提供一种下行控制信道的传输方法，包括：Some embodiments of the present disclosure also provide a downlink control channel transmission method, including:
网络侧设备向终端发送指示信息，所述指示信息用于指示下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式；The network side device sends indication information to the terminal, where the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or is used to indicate whether to enable the repeated transmission mode of the downlink control channel;
所述网络侧设备根据所述指示信息，进行所述下行控制信道发送。The network side device sends the downlink control channel according to the instruction information.
可选的，所述指示信息包括：Optionally, the instruction information includes:
组公共下行控制信道携带的指示信息；或者The indication information carried by the group common downlink control channel; or
第一DCI format的DCI的特定bit位中的指示信息；或者Indication information in specific bits of DCI in the first DCI format; or
MAC CE中携带的指示信息；或者Instruction information carried in MAC CE; or
RRC信令携带的指示信息。Indication information carried by RRC signaling.
可选的，所述组公共下行控制信道携带含所述终端在内的至少一个终端的指示信息；Optionally, the group of common downlink control channels carries indication information of at least one terminal including the terminal;
所述网络侧设备根据所述指示信息，进行所述下行控制信道发送，包括：The network side device sending the downlink control channel according to the instruction information includes:
所述网络侧设备根据所述终端的指示信息，对所述终端的所述下行控制信道进行发送。The network side device sends the downlink control channel of the terminal according to the instruction information of the terminal.
可选的，所述终端的指示信息用于指示：下行控制信道的重复传输次数，和/或，是否开启所述下行控制信道的重复传输模式；Optionally, the indication information of the terminal is used to indicate: the number of repeated transmissions of the downlink control channel, and/or whether to enable the repeated transmission mode of the downlink control channel;
且所述终端的指示信息用于指示还用于指示：And the indication information of the terminal is used to indicate that it is also used to indicate:
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式在所述组公共下行控制信道的传输周期内有效，或者，所述重复传输次数和/ 或是否开启所述下行控制信道的重复传输模式的有效在所述终端下一次成功接收到组公共下行控制信道终止。The number of repeated transmissions and/or whether the repeated transmission mode of turning on the downlink control channel is valid within the transmission period of the group of common downlink control channels, or, the number of repeated transmissions and/or whether the downlink control channel is turned on The effective repetitive transmission mode is terminated the next time the terminal successfully receives the group common downlink control channel.
可选的，所述DCI的FDRA域全为1，所述特定bit位为所述DCI中未利用或者预留的N个bit，其中，所述N为大于或者等于1的整数。Optionally, the FDRA field of the DCI is all 1, and the specific bit bits are unused or reserved N bits in the DCI, where the N is an integer greater than or equal to 1.
可选的，在所述N为大于1的整数的情况下，所述特定bit位的第一部分bit用于指示所述DCI用于CFRA的调度或者用于所述下行控制信道的重复传输指示或者用于其他类型的用途；Optionally, in the case where N is an integer greater than 1, the first part of the specific bit is used to indicate that the DCI is used for CFRA scheduling or for a repeated transmission indication of the downlink control channel or For other types of uses;
所述特定bit位的第二部分bit用于指示所述下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式。The second part of the specific bit is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
可选的，所述第一部分bit为所述特定bit位中的前H个bit，所述第二部分bit为所述特定bit位除所述前H个bit之外的一个或者多个bit，所述H为小于所述N的整数。Optionally, the first partial bit is the first H bits of the specific bit, and the second partial bit is one or more bits of the specific bit except the first H bits, The H is an integer less than the N.
可选的，所述第二部分bit还用于指示：Optionally, the second part of the bit is also used to indicate:
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的生效时间。The number of repeated transmissions and/or whether the effective time of the repeated transmission mode of the downlink control channel is enabled.
可选的，所述DCI format为用于数据调度的DCI format或者用于回退下行调度的DCI format。Optionally, the DCI format is a DCI format used for data scheduling or a DCI format used for fallback downlink scheduling.
可选的，所述下行控制信道的重复传输次数为重复次数集合的一个子集，其中，所述重复次数集合为协议预定义或者高层信令配置的。Optionally, the number of repeated transmissions of the downlink control channel is a subset of the set of repetitions, where the set of repetitions is predefined by the protocol or configured by high-level signaling.
可选的，所述重复传输模式的重复传输次数为协议预定义或者高层信令配置的；和/或Optionally, the number of repeated transmissions in the repeated transmission mode is predefined by the protocol or configured by high-level signaling; and/or
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的有效期为高层信令配置或者协议预定义。The number of repeated transmissions and/or the validity period of whether to enable the repeated transmission mode of the downlink control channel is pre-defined by high-level signaling configuration or protocol.
本公开一些实施例还提供一种终端，包括：Some embodiments of the present disclosure also provide a terminal, including:
第一接收模块，用于接收网络侧设备发送的指示信息，所述指示信息用于指示下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式；The first receiving module is used to receive indication information sent by the network side device, the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel;
第二接收模块，用于根据所述指示信息，对所述下行控制信道进行接收。The second receiving module is configured to receive the downlink control channel according to the instruction information.
可选的，所述指示信息包括：Optionally, the instruction information includes:
组公共下行控制信道携带的指示信息；或者The indication information carried by the group common downlink control channel; or
第一DCI format的DCI的特定bit位中的指示信息；或者Indication information in specific bits of DCI in the first DCI format; or
MAC CE中携带的指示信息；或者Instruction information carried in MAC CE; or
RRC信令携带的指示信息。Indication information carried by RRC signaling.
可选的，所述组公共下行控制信道携带含所述终端在内的至少一个终端的指示信息；Optionally, the group of common downlink control channels carries indication information of at least one terminal including the terminal;
所述第二接收模块用于根据所述终端的指示信息，对所述下行控制信道进行接收。The second receiving module is configured to receive the downlink control channel according to the instruction information of the terminal.
本公开一些实施例还提供一种网络侧设备，包括：Some embodiments of the present disclosure also provide a network-side device, including:
第一发送模块，用于向终端发送指示信息，所述指示信息用于指示下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式；The first sending module is used to send instruction information to the terminal, where the instruction information is used to indicate the number of repeated transmissions of the downlink control channel, and/or to indicate whether to enable the repeated transmission mode of the downlink control channel;
第二发送模块，用于根据所述指示信息，进行所述下行控制信道发送。The second sending module is configured to send the downlink control channel according to the instruction information.
可选的，所述指示信息包括：Optionally, the instruction information includes:
组公共下行控制信道携带的指示信息；或者The indication information carried by the group common downlink control channel; or
第一DCI format的DCI的特定bit位中的指示信息；或者Indication information in specific bits of DCI in the first DCI format; or
MAC CE中携带的指示信息；或者Instruction information carried in MAC CE; or
RRC信令携带的指示信息。Indication information carried by RRC signaling.
可选的，所述组公共下行控制信道携带含所述终端在内的至少一个终端的指示信息；Optionally, the group of common downlink control channels carries indication information of at least one terminal including the terminal;
所述第二发送模块用于根据所述终端的指示信息，对所述终端的所述下行控制信道进行发送。The second sending module is configured to send the downlink control channel of the terminal according to the instruction information of the terminal.
本公开一些实施例还提供一种终端，包括：收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，其中，Some embodiments of the present disclosure also provide a terminal, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor, wherein,
所述收发机，用于接收网络侧设备发送的指示信息，所述指示信息用于指示下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式；The transceiver is used to receive indication information sent by the network side device, the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or is used to indicate whether to enable the repeated transmission mode of the downlink control channel;
所述收发机还用于根据所述指示信息，对所述下行控制信道进行接收。The transceiver is further configured to receive the downlink control channel according to the instruction information.
可选的，所述指示信息包括：Optionally, the instruction information includes:
组公共下行控制信道携带的指示信息；或者The indication information carried by the group common downlink control channel; or
第一DCI format的DCI的特定bit位中的指示信息；或者Indication information in specific bits of DCI in the first DCI format; or
MAC CE中携带的指示信息；或者Instruction information carried in MAC CE; or
RRC信令携带的指示信息。Indication information carried by RRC signaling.
可选的，所述组公共下行控制信道携带含所述终端在内的至少一个终端的指示信息；Optionally, the group of common downlink control channels carries indication information of at least one terminal including the terminal;
所述收发机执行的所述根据所述指示信息，对所述下行控制信道进行接收，包括：The receiving of the downlink control channel according to the instruction information performed by the transceiver includes:
根据所述终端的指示信息，对所述下行控制信道进行接收。Receiving the downlink control channel according to the instruction information of the terminal.
本公开一些实施例还提供一种网络侧设备，包括：Some embodiments of the present disclosure also provide a network-side device, including:
收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，其中，A transceiver, a memory, a processor, and a program stored on the memory and executable on the processor, wherein,
所述收发机，用于向终端发送指示信息，所述指示信息用于指示下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式；The transceiver is used to send indication information to the terminal, the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or is used to indicate whether to enable the repeated transmission mode of the downlink control channel;
所述收发机还用于根据所述指示信息，进行所述下行控制信道发送。The transceiver is further configured to send the downlink control channel according to the instruction information.
可选的，所述指示信息包括：Optionally, the instruction information includes:
组公共下行控制信道携带的指示信息；或者The indication information carried by the group common downlink control channel; or
第一DCI format的DCI的特定bit位中的指示信息；或者Indication information in specific bits of DCI in the first DCI format; or
MAC CE中携带的指示信息；或者Instruction information carried in MAC CE; or
RRC信令携带的指示信息。Indication information carried by RRC signaling.
可选的，所述组公共下行控制信道携带含所述终端在内的至少一个终端的指示信息；Optionally, the group of common downlink control channels carries indication information of at least one terminal including the terminal;
所述收发机执行的所述根据所述指示信息，进行所述下行控制信道发送，包括：The downlink control channel transmission performed by the transceiver according to the instruction information includes:
所述收发机根据所述终端的指示信息，对所述终端的所述下行控制信道进行发送。The transceiver transmits the downlink control channel of the terminal according to the instruction information of the terminal.
本公开一些实施例还提供一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现本公开一些实施例提供的终端侧的所述的 下行控制信道的传输方法中的步骤，或者该程序被处理器执行时实现本公开一些实施例提供的网络侧设备侧的所述的下行控制信道的传输方法中的步骤。Some embodiments of the present disclosure also provide a computer-readable storage medium on which a computer program is stored, which when executed by a processor implements the downlink control channel transmission method on the terminal side provided by some embodiments of the present disclosure , Or when the program is executed by the processor, the steps in the method for transmitting the downlink control channel on the network side device side provided by some embodiments of the present disclosure are implemented.
本公开一些实施例中，终端接收网络侧设备发送的指示信息，所述指示信息用于指示下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式；所述终端根据所述指示信息，对所述下行控制信道进行接收。这样，通过网络侧设备发送的所述指示信息，可以控制所述下行控制信道的重复传输次数和/或重复传输模式，以提升所述下行控制信道的传输可靠性。In some embodiments of the present disclosure, the terminal receives indication information sent by the network side device, where the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or is used to indicate whether to enable the repeated transmission mode of the downlink control channel The terminal receives the downlink control channel according to the instruction information. In this way, the indication information sent by the network side device can control the number of repeated transmissions and/or the repeated transmission mode of the downlink control channel, so as to improve the transmission reliability of the downlink control channel.
附图说明BRIEF DESCRIPTION
图1是本公开一些实施例提供的一种下行控制信道的传输方法的流程图；1 is a flowchart of a downlink control channel transmission method provided by some embodiments of the present disclosure;
图2是本公开一些实施例提供的另一种下行控制信道的传输方法的流程图；2 is a flowchart of another downlink control channel transmission method provided by some embodiments of the present disclosure;
图3是本公开一些实施例提供的一种组公共PDCCH(group common PDCCH)的示意图；3 is a schematic diagram of a group common PDCCH (group common PDCCH) provided by some embodiments of the present disclosure;
图4是本公开一些实施例提供的一种终端的结构图；4 is a structural diagram of a terminal provided by some embodiments of the present disclosure;
图5是本公开一些实施例提供的一种网络侧设备的结构图；5 is a structural diagram of a network-side device provided by some embodiments of the present disclosure;
图6是本公开一些实施例提供的另一种终端的结构图；6 is a structural diagram of another terminal provided by some embodiments of the present disclosure;
图7是本公开一些实施例提供的另一种网络侧设备的结构图。7 is a structural diagram of another network-side device provided by some embodiments of the present disclosure.
具体实施方式detailed description
为使本公开要解决的技术问题、技术方案和优点更加清楚，下面将结合附图及具体实施例进行详细描述。In order to make the technical problems, technical solutions and advantages to be solved by the present disclosure more clear, the following will describe in detail with reference to the accompanying drawings and specific embodiments.
请参见图1，图1是本公开一些实施例提供的一种下行控制信道的传输方法的流程图，如图1所示，包括以下步骤：Please refer to FIG. 1. FIG. 1 is a flowchart of a downlink control channel transmission method provided by some embodiments of the present disclosure. As shown in FIG. 1, the method includes the following steps:
101、终端接收网络侧设备发送的指示信息，所述指示信息用于指示下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式。101. The terminal receives indication information sent by the network side device, where the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
102、所述终端根据所述指示信息，对所述下行控制信道进行接收。102. The terminal receives the downlink control channel according to the instruction information.
其中，上述指示信息可以通过1个bit指示是否开启下物理行控制信道(Physical Downlink Control Channel，PDCCH)的重复传输模式，例如1表示开启重复传输，0表示关闭重复传输。Wherein, the above indication information can indicate whether to enable the repeated transmission mode of the physical downlink control channel (Physical Downlink Control Channel, PDCCH) through 1 bit, for example, 1 means to enable repeated transmission, and 0 means to disable repeated transmission.
上述指示信息可以通过一个或者多个bit来指示重复传输次数，例如：使用2bit，用于指示下行控制信道重复次数为0、1、2或者4等。The above indication information may indicate the number of repeated transmissions through one or more bits, for example, using 2 bits to indicate that the number of repetitions of the downlink control channel is 0, 1, 2, or 4.
本公开一些实施例中，终端在接收到所述指示信息时，可以根据所述指示信息的指示确定所述下行控制信道的传输次数，或者确定是否开启所述下行控制信道的重复传输模式。在开启所述重复传输模式的情况下，所述下行控制信道才可以进行重复传输，否则仅进行一次传输。在开启所述重复传输模式的情况下，所述下行控制信道的重复传输次数可以是所述指示信息指示的重复传输次数。当然，在所述指示信息仅指示开启所述下行控制信道的重复传输模式，而未指示所述重复传输次数时，所述下行控制信道的重复传输次数可以是默认的或者预设的重复传输次数。In some embodiments of the present disclosure, when receiving the indication information, the terminal may determine the number of transmissions of the downlink control channel according to the indication of the indication information, or determine whether to enable the repeated transmission mode of the downlink control channel. When the repeated transmission mode is turned on, the downlink control channel can be repeatedly transmitted, otherwise only one transmission is performed. When the repeated transmission mode is turned on, the number of repeated transmissions of the downlink control channel may be the number of repeated transmissions indicated by the indication information. Of course, when the indication information only indicates to enable the repeated transmission mode of the downlink control channel, but does not indicate the repeated transmission times, the repeated transmission times of the downlink control channel may be the default or preset repeated transmission times .
在开启所述重复传输次数的情况下，终端可以根据所述指示信息对所述下行控制信道重复传输的同一条消息进行合并接收，以避免所述终端对重复传输的同一条消息进行多次接收并进行合并。由此可知，终端可以根据所述指示信息减少对所述下行控制信道的接收的复杂程度。当然，对此不作限定，例如：在指示重复传输次数为多次，或者开启所述下行控制信道的重复传输模式下，终端可以是首先对每次下行控制信道尝试单独接收，若不成功则进一步对多次传输进行合并解码。When the number of repeated transmissions is turned on, the terminal may combine and receive the same message repeatedly transmitted on the downlink control channel according to the instruction information, so as to prevent the terminal from receiving the same message repeatedly transmitted multiple times And merge. It can be seen from this that the terminal can reduce the complexity of receiving the downlink control channel according to the instruction information. Of course, there is no limitation on this. For example, in the case of indicating that the number of repeated transmissions is multiple, or the repeated transmission mode in which the downlink control channel is turned on, the terminal may first try to separately receive each downlink control channel, and if not successful, further Combine decoding for multiple transmissions.
作为一种可选的实施方式，所述指示信息包括：As an optional implementation manner, the indication information includes:
组公共下行控制信道携带的指示信息；或者The indication information carried by the group common downlink control channel; or
第一DCI format的DCI的特定bit位中的指示信息；或者Indication information in specific bits of DCI in the first DCI format; or
MAC CE中携带的指示信息；或者Instruction information carried in MAC CE; or
无线资源控制RRC信令携带的指示信息。Indication information carried by radio resource control RRC signaling.
本实施方式中，通过所述组公共下行控制信道携带所述指示信息、MAC CE中携带所述指示信息或者RRC信令携带所述指示信息，可以提升所述指示信息的灵活性。当然，所述指示信息还可以以其他形式传输至所述终端，在此不做限定。In this embodiment, the indication information is carried through the group of common downlink control channels, the indication information is carried in the MAC CE, or the indication information is carried in RRC signaling, which can improve the flexibility of the indication information. Of course, the indication information may also be transmitted to the terminal in other forms, which is not limited herein.
例如：E.g:
实施例1：网络侧设备可以通过MAC CE中携带的上述指示信息，告知终端下行控制信道的重复传输次数。终端可以根据MAC CE中携带的指示信息，进行下行控制信道的合并接收。Embodiment 1: The network side device may notify the terminal of the number of repeated transmissions of the downlink control channel through the above indication information carried in the MAC CE. The terminal can perform combined reception of the downlink control channel according to the instruction information carried in the MAC CE.
又例如：Another example:
实施例2：网络侧设备亦可通过RRC信令为终端配置下行控制信道重复传输的指示信息。例如，通过RRC信令配置终端的下行控制信道的重复传输次数为K次。终端接收到所述高层信令后，可对K次下行控制信道传输进行合并接收。但对此本公开一些实施例不做限定。例如：终端可以首先对每次下行控制信道传输尝试单独接收，若不成功则进一步对多次下行控制信道传输进行合并解码。Embodiment 2: The network side device may also configure the downlink control channel repeated transmission indication information for the terminal through RRC signaling. For example, the number of repeated transmissions of the downlink control channel of the terminal is configured by RRC signaling to K times. After receiving the high-level signaling, the terminal may perform combined reception of K times of downlink control channel transmission. However, this does not limit some embodiments of the present disclosure. For example, the terminal may first try to receive each downlink control channel transmission separately, and if unsuccessful, further merge and decode multiple downlink control channel transmissions.
可选的，所述组公共下行控制信道为组公共物理下行控制信道(group common PDCCH)。例如：所述组公共下行控制信道携带的指示信息可以对一组终端均有效，所述一组终端中的各个终端根据该指示信息对下行控制信道进行接收。Optionally, the group common downlink control channel is a group common physical downlink control channel (group common PDCCH). For example, the indication information carried by the group of common downlink control channels may be valid for a group of terminals, and each terminal in the group of terminals receives the downlink control channel according to the indication information.
这样，便可以通过一条对一组终端均有效的组组公共下行控制信道携带的指示信息，分别指示一组终端的下行控制信道的重复传输情况。简化了分别对多个终端进行重复传输情况进行指示的复杂程度。In this way, it is possible to indicate the repeated transmission of the downlink control channel of a group of terminals through a piece of indication information carried by a group of common downlink control channels valid for a group of terminals, respectively. It simplifies the complexity of indicating the repeated transmission of multiple terminals separately.
例如：E.g:
实施例3：group common PDCCH携带的DCI中包含多个终端的下行控制信道重复传输的激活/去激活信息(即是否开启下行控制信道的重复传输模式)，职使用指示信息中1bit的指示域以指示终端是否开启了下行控制信道的重复传输模式。具体的，例如当1bit的指示域等于1时，表示开启下行控制信道的重复传输模式，等于0时，表示关闭下行控制信道的重复传输模式。Embodiment 3: The DCI carried in the group common PDCCH contains activation/deactivation information of repeated transmission of downlink control channels of multiple terminals (that is, whether to enable the repeated transmission mode of the downlink control channel). Indicate whether the terminal has enabled the repeated transmission mode of the downlink control channel. Specifically, for example, when the 1-bit indication field is equal to 1, it indicates that the repeated transmission mode of the downlink control channel is turned on, and when it is equal to 0, it indicates that the repeated transmission mode of the downlink control channel is turned off.
对应的，下行控制信道的重复传输次数(在此以重复传输次数等于H次为例)，通过高层信令进行配置，或者通过协议进行定义。如果开启了下行控制信道的重复传输模式，则基站将重复传输H次下行控制信道，终端将对H次下行控制信道进行合并接收；否则，下行控制信道只会发送一次。Correspondingly, the number of repeated transmissions of the downlink control channel (here, the number of repeated transmissions is equal to H times as an example) can be configured through high-level signaling or defined through a protocol. If the repeat transmission mode of the downlink control channel is enabled, the base station will repeatedly transmit the downlink control channel H times, and the terminal will receive the downlink control channel H times in combination; otherwise, the downlink control channel will only be sent once.
作为一种可选的实施方式，所述组公共下行控制信道携带含所述终端在 内的至少一个终端的指示信息；As an optional implementation manner, the group of common downlink control channels carries indication information including at least one terminal within the terminal;
所述终端根据所述指示信息，对所述下行控制信道进行接收，包括：The terminal receiving the downlink control channel according to the instruction information includes:
所述终端根据所述终端的指示信息，对所述下行控制信道进行接收。The terminal receives the downlink control channel according to the instruction information of the terminal.
其中，所述组公共下行控制信道可以携带多个终端的指示信息，且不同终端的指示信息可以相同或者不同，对此不作限定。每一个终端可以分别获取其对应的一个指示信息确定下行控制信道的重复传输次数和/或是否开启重复传输模式，并根据其确定的下行控制信道重复传输的情况进行下行控制信道重复传输。The group of common downlink control channels may carry indication information of multiple terminals, and the indication information of different terminals may be the same or different, which is not limited. Each terminal may separately obtain corresponding indication information to determine the number of repeated transmissions of the downlink control channel and/or whether to enable the repeated transmission mode, and perform the repeated transmission of the downlink control channel according to the determined situation of the repeated transmission of the downlink control channel.
这样，可以避免分别对多个终端单独发送一条组公共下行控制信道消息，从而减少了对所述组公共下行控制信道的占用，减少对多个终端发送指示信息的开销。In this way, it is possible to avoid separately sending a group of common downlink control channel messages to multiple terminals, thereby reducing the occupation of the group of common downlink control channels and reducing the overhead of sending instruction information to multiple terminals.
进一步的，所述终端(执行上述步骤的终端)的指示信息可以用于指示：下行控制信道的重复传输次数，和/或，是否开启所述下行控制信道的重复传输模式；Further, the indication information of the terminal (the terminal that performs the above steps) may be used to indicate: the number of repeated transmissions of the downlink control channel, and/or whether to enable the repeated transmission mode of the downlink control channel;
且所述终端的指示信息还可以用于指示：And the indication information of the terminal may also be used to indicate:
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式在所述组公共下行控制信道的传输周期内有效，或者，所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的有效在所述终端下一次成功接收到组公共下行控制信道终止。The number of repeated transmissions and/or whether the repetitive transmission mode of turning on the downlink control channel is valid during the transmission period of the group of common downlink control channels, or the number of repetitive transmissions and/or whether the downlink control channel is turned on The effective repetitive transmission mode is terminated the next time the terminal successfully receives the group common downlink control channel.
其中，在传输周期内有效，可以是指所述终端仅在所述组公共下行控制信道的传输周期内根据所述指示信息确定所述下行控制信道的重复传输次数和/或是否开启所述下行控制信道的重复传输模式，超出所述组公共下行控制信道的传输周期后，便可以恢复所述下行控制信道的默认重复传输模式或者关闭所述下行控制信道的重复传输模式。Wherein, valid in the transmission period, it may mean that the terminal determines the number of repeated transmissions of the downlink control channel and/or whether to turn on the downlink according to the indication information only during the transmission period of the group of common downlink control channels In the repeated transmission mode of the control channel, after the transmission period of the group of common downlink control channels is exceeded, the default repeated transmission mode of the downlink control channel can be restored or the repeated transmission mode of the downlink control channel can be turned off.
另外，在下一次成功接收到组公共下行控制信道终止，可以是指在所述终端在下一次成功接收到组公共下行控制信道之前，根据本次组公共下行控制信道携带的指示信息确定所述下行控制信道的重复传输次数和/或是否开启所述下行控制信道的重复传输模式。在下一次成功接收到组公共下行控制信道时，便可以根据该组公共下行控制信道携带的指示信息确定所述下行控 制信道的重复传输次数和/或是否开启所述下行控制信道的重复传输模式。以通过所述组公共下行控制信道携带的指示信息及时修改所述终端对下行控制信道的重复传输状态。In addition, the termination of the next successful reception of the group common downlink control channel may refer to the determination of the downlink control according to the indication information carried by the group common downlink control channel before the terminal successfully receives the group common downlink control channel the next time The number of repeated transmissions of the channel and/or whether to enable the repeated transmission mode of the downlink control channel. When the group common downlink control channel is successfully received next time, the number of repeated transmissions of the downlink control channel and/or whether to enable the repeated transmission mode of the downlink control channel can be determined according to the indication information carried by the group of common downlink control channels. Use the indication information carried by the group of common downlink control channels to timely modify the repeated transmission state of the terminal to the downlink control channel.
本实施方式下，可以控制指示信息的时效，以及时改变终端对下行控制信道进行重复传输的状态，提升所述指示信息的时效性。In this embodiment, the timeliness of the indication information can be controlled, and the state in which the terminal repeatedly transmits the downlink control channel can be changed in time to improve the timeliness of the indication information.
作为一种可选的实施方式，所述DCI的频域资源分配FDRA域全为1，所述特定bit位为所述DCI中未利用或者预留的N个bit，其中，所述N为大于或者等于1的整数。As an optional implementation manner, the DCI frequency domain resource allocation FDRA domain is all 1, and the specific bit is N bits that are not utilized or reserved in the DCI, where N is greater than Or an integer equal to 1.
其中，上述FDRA域全为1可以表示上述FDRA域未被使用，或者用于表示上述特定bit位表示指示上述指示信息，从而终端解析到上述FDRA域全为1时，可以根据上述特定bit位中的bit确定上述指示信息。Wherein, all the FDRA fields are 1 can indicate that the FDRA field is not used, or that the specific bit indicates that the indication information is indicated, so that when the terminal resolves that the FDRA field is all 1, it can be based on the specific bit Bit determines the above instructions.
当然，所述FDRA域还可以是其他数值等，在此不作具体限定。Of course, the FDRA field may also be other numerical values, etc., which is not specifically limited here.
另外，所述N个bit可以通过协议预设、高层信令指示等方式确定该N个bit指示的重复传输的状态。In addition, the N bits may determine the status of the repeated transmission indicated by the N bits through protocol presets and high-level signaling instructions.
例如，在N等于1时，可以通过协议预设的方式确定该1个bit的内容等于1时，表示开启下行控制信道的重复传输模式；在该1个bit的内容等于0时，表示关闭下行控制信道的重复传输模式。For example, when N is equal to 1, it can be determined by the protocol preset that when the content of 1 bit is equal to 1, it means that the repeat transmission mode of the downlink control channel is turned on; when the content of the 1 bit is equal to 0, it means that the downlink is turned off Repeat transmission mode of the control channel.
进一步的，在所述N为大于1的整数的情况下，所述特定bit位的第一部分bit用于指示所述DCI用于CFRA的调度或者用于所述下行控制信道的重复传输指示或者用于其他类型的用途；Further, in the case where N is an integer greater than 1, the first part of the specific bit is used to indicate that the DCI is used for CFRA scheduling or for the repeated transmission indication of the downlink control channel or used For other types of uses;
所述特定bit位的第二部分bit用于指示所述下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式。The second part of the specific bit is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
其中，上述其他类型的用途可以是指示除上述CFRA的调度和下行控制信道的重复传输指示之外的用途，例如：用于其他用途的调度等，对此不作限定，也就是说，上述第一部分bit并不限于区分上述CFRA的调度或者所述下行控制信道的重复传输指示。Among them, the above-mentioned other types of uses may indicate uses other than the above-mentioned CFRA scheduling and downlink control channel repetitive transmission instructions, for example: scheduling for other uses, etc., which are not limited, that is, the first part above The bit is not limited to distinguish between the above-mentioned CFRA scheduling or the repeated transmission indication of the downlink control channel.
这样，便可以通过所述第一部分bit区分所述DCI的功能，避免与现有的CFRA调度的功能相混合。In this way, the functions of the DCI can be distinguished by the first part of bits, and avoid mixing with the existing functions scheduled by the CFRA.
可选的，所述第一部分bit为所述特定bit位中的前H个bit，所述第 二部分bit为所述特定bit位除所述前H个bit之外的一个或者多个bit，所述H为小于所述N的整数。Optionally, the first partial bit is the first H bits of the specific bit, and the second partial bit is one or more bits of the specific bit except the first H bits, The H is an integer less than the N.
当然，也可以将所述第一部分bit设置为所述特定bit位中的后H个bit，所述第二部分bit为所述特定bit位除所述后H个bit之外的一个或者多个bit，在此不做限定。Of course, the first partial bit may also be set to the last H bits of the specific bit, and the second partial bit may be one or more of the specific bit except the last H bits bit, not limited here.
可选的，所述第二部分bit还用于指示：Optionally, the second part of the bit is also used to indicate:
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的生效时间。The number of repeated transmissions and/or whether the effective time of the repeated transmission mode of the downlink control channel is enabled.
其中，所述生效时间可以是具体的时间长度，例如：持续时间，也可以是指在下一次成功接收所述DCI format时失效等，以提升所述DCI format携带的指示信息的时效性。Wherein, the effective time may be a specific length of time, for example, duration, or may be invalid when the DCI format is successfully received next time, so as to improve the timeliness of the indication information carried by the DCI format.
可选的，所述DCI format为用于数据调度的DCI format或者用于回退(fallback)下行调度的DCI format。Optionally, the DCI format is a DCI format used for data scheduling or a DCI format used for fallback downlink scheduling.
其中，所述数据调度的DCI format可以是DCI format 1-0或者其他通信系统中已定义的DCI format。而上述fallback下行调度的DCI format可以是本公开一些实施例新引入的DCI format，或者未来通信系统(例如：5G通信系统等)中定义用于回退下行调度的DCI format，以提升所述DCI format的适用范围。Wherein, the DCI format of the data scheduling may be DCI format 1-0 or the DCI format defined in other communication systems. The DCI format of the fallback downlink scheduling may be a DCI format newly introduced in some embodiments of the present disclosure, or a DCI format defined in a future communication system (for example, a 5G communication system, etc.) used for fallback downlink scheduling to improve the DCI Scope of format.
另外，上述用于数据调度的DCI format或者用于回退(fallback)下行调度的DCI format还可以通过小区无线网络临时标识(Cell Radio Network Temporary Identifier，C-RNTI)对进行加扰。In addition, the DCI format used for data scheduling or the DCI format used for fallback downlink scheduling can also be scrambled by a cell radio network temporary identifier (Cell Radio Network Temporary Identifier, C-RNTI).
下面以DCI format 1-0进行举例说明：The following uses DCI format 1-0 as an example:
实施例4：网络侧设备通过DCI format 1-0指示是否开启下行控制信道的重复传输模式，并通知重复传输次数。网络侧设备根据DCI format 1-0中的指示信息进行下行控制信道的发送。Embodiment 4: The network-side device indicates whether to enable the repeated transmission mode of the downlink control channel through DCI format 1-0, and notifies the number of repeated transmissions. The network side device sends the downlink control channel according to the indication information in DCI format 1-0.
具体的，所述DCI format 1-0中的FDRA域为全1，且通过终端对应的C-RNTI进行加扰。对该DCI中携带的最后N个bit的未使用bit，也即预留bit，进行定义，并至少携带如下两种信息：Specifically, the FDRA field in the DCI format 1-0 is all 1, and scrambling is performed through the C-RNTI corresponding to the terminal. Define the unused bits of the last N bits carried in the DCI, that is, reserved bits, and carry at least the following two types of information:
一、DCI类型指示信息，用于区分该DCI用于CFRA调度还是PDCCH  repetition模式指示；1. DCI type indication information, used to distinguish whether the DCI is used for CFRA scheduling or PDCCH repetition mode indication;
二、下行控制信道的重复传输模式的指示信息域，用于指示如下信息的部分或者全部：2. The indication information field of the repeated transmission mode of the downlink control channel is used to indicate part or all of the following information:
下行控制信道的重复传输次数；Number of repeated transmissions of the downlink control channel;
下行控制信道的重复传输次数的持续时间。The duration of the number of repeated transmissions of the downlink control channel.
当确认为下行控制信道的重复传输模式相关的DCI之后，则忽略掉除下行控制信道的重复传输模式的指示信息域之外的其他所有bit域。When it is confirmed as the DCI related to the repeated transmission mode of the downlink control channel, all other bit fields except the indication information field of the repeated transmission mode of the downlink control channel are ignored.
具体而言，可通过如下表1表示DCI的结构：Specifically, the structure of DCI can be represented by the following Table 1:
表1Table 1
Figure PCTCN2020070667-appb-000001
Figure PCTCN2020070667-appb-000001
其中，上述R可以等于上述N。Wherein, the aforementioned R may be equal to the aforementioned N.
在本实施例中，若R＝10bit，H＝1bit，L1＝2bit，且DCI format 1-0中不包含指示下行控制信道的重复传输的持续时间的指示域。终端在搜索空间中检测接收到DCI format 1-0之后，对其内的bit域进行解析，如果发现FDRA域为全1，则首先解析后10bit中的第一信息域，也即R个bit中的前H个bit，如果该bit域状态为0，则表示该DCI用于CFRA，并按照CFRA的解析方式获得CFRA的相关信息；如果该bit域状态为1，则表示该DCI用于指示该终端的下行控制信道的重复传输模式，并进一步解析最后10bit中的第2bit和第3bit组成的信息域，确定下行控制信道的重复传输次数。In this embodiment, if R=10bit, H=1bit, L1=2bit, and DCI format 1-0 does not include an indication field indicating the duration of repeated transmission of the downlink control channel. After detecting that the DCI format 1-0 is received in the search space, the terminal parses the bit field in it. If the FDRA field is found to be all 1, then the first information field in the 10 bits after analysis, that is, in the R bits The first H bits of the bit, if the bit field status is 0, it means that the DCI is used for CFRA, and the CFRA related information is obtained according to the CFRA analysis method; if the bit field status is 1, it means that the DCI is used to indicate the Repeat transmission mode of the downlink control channel of the terminal, and further analyze the information field composed of the second and third bits in the last 10 bits to determine the number of repeated transmission of the downlink control channel.
例如，根据如下表2确定重复传输次数：For example, the number of repeated transmissions is determined according to Table 2 below:
表2Table 2
Figure PCTCN2020070667-appb-000002
Figure PCTCN2020070667-appb-000002
需要注意的是，在此对bit域的长度以及每个状态对应的重复次数不做限定。表2中bit域与重复传输次数之间的对应关系可以通过协议预定义的方式进行定义，亦可通过RRC信令进行配置。若通过高层信令进行配置，则可以通过高层信令配置不同于上述表格的任意对应关系。It should be noted that the length of the bit field and the number of repetitions corresponding to each state are not limited here. The correspondence between the bit field and the number of repeated transmissions in Table 2 can be defined in a manner predefined by the protocol, and can also be configured through RRC signaling. If the configuration is performed through high-level signaling, any corresponding relationship different from the above table may be configured through high-level signaling.
作为一种可选的实施方式，所述下行控制信道的重复传输次数为重复次数集合的一个子集，其中，所述重复次数集合为协议预定义或者高层信令配置的。As an optional implementation manner, the number of repeated transmissions of the downlink control channel is a subset of the set of repetitions, where the set of repetitions is pre-defined by the protocol or configured by high-level signaling.
例如，所述重复次数集合可以包括所述下行控制信道的重复传输次数的各种情况，例如：所述重复次数集合包括4个子集：重复0次、重复1次、重复2次、重复4次等。任一终端对下行控制信道的重复传输次数可以是这4种重复次数中的任一种，即所述重复次数集合的子集。For example, the set of repetition numbers may include various situations of the number of repeated transmissions of the downlink control channel, for example, the set of repetition numbers includes 4 subsets: 0 repetitions, 1 repetition, 2 repetitions, and 4 repetitions Wait. The number of repeated transmissions of the downlink control channel by any terminal may be any of the four types of repetitions, that is, a subset of the set of repetitions.
当然，所述重复次数集合还可以包括其他重复次数，并且所述重复次数集合还可以采用出了数字以外的其他形式表示，在此不做限定。Of course, the set of repetition times may also include other repetition times, and the set of repetition times may also be expressed in other forms than numbers, which is not limited herein.
这样，可以从协议预定义或者高层信令配置的多个重复次数中选取一个重复次数子集作为下行控制信道的重复次数，减少确定所述下行控制信道的重复次数的过程的复杂程度，且还可以降低开销，因为，上述指示信息可以是上述重复次数集合的一个索引。In this way, a subset of the number of repetitions can be selected as the number of repetitions of the downlink control channel from a plurality of repetitions predefined in the protocol or configured by high-level signaling, reducing the complexity of the process of determining the number of repetitions of the downlink control channel, and also The overhead can be reduced because the above-mentioned indication information may be an index of the above-mentioned set of repetition times.
当然，所述重复传输模式的重复传输次数为协议预定义或者高层信令配置的。Of course, the number of repeated transmissions in the repeated transmission mode is predefined by the protocol or configured by high-level signaling.
这样，可以通过协议预定义或者高层信令配置的方式设置所述重复传输模式的重复传输次数，以扩大所述重复传输次数的选择范围。In this way, the number of repetitive transmissions of the repetitive transmission mode can be set in a manner predefined by a protocol or configured by high-level signaling, so as to expand the selection range of the number of repetitive transmissions.
可选的，所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的有效期为高层信令配置或者协议预定义。Optionally, the number of repeated transmissions and/or whether the validity period of the repeated transmission mode of the downlink control channel is enabled is configured by high-layer signaling or predefined by the protocol.
其中，有效期可以包括重复传输次数和/或是否开启所述下行控制信道的重复传输模式的生效时间、失效时间和生效时长中的至少一项。Wherein, the validity period may include at least one of the number of repeated transmissions and/or whether the repeated transmission mode of the downlink control channel is effective, invalid and effective.
这样，可以通过高层信令配置或者协议预定义的方式对所述指示消息的有效期进行设置，提升所述指示消息的时效性。In this way, the validity period of the indication message can be set through a high-level signaling configuration or a protocol pre-defined manner to improve the timeliness of the indication message.
本公开一些实施例中，终端接收网络侧设备发送的指示信息，所述指示信息用于指示下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式；所述终端根据所述指示信息，对所述下行控制信道进行接收。这样，通过网络侧设备发送的所述指示信息，可以控制所述下行控制信道的重复传输次数和/或重复传输模式，以提升所述下行控制信道的传输可靠性。In some embodiments of the present disclosure, the terminal receives indication information sent by the network side device, where the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or is used to indicate whether to enable the repeated transmission mode of the downlink control channel The terminal receives the downlink control channel according to the instruction information. In this way, the indication information sent by the network side device can control the number of repeated transmissions and/or the repeated transmission mode of the downlink control channel, so as to improve the transmission reliability of the downlink control channel.
请参阅图2，是本公开一些实施例提供的另一种下行控制信道的传输方法的流程图，如图2所示，该方法包括以下步骤：Please refer to FIG. 2, which is a flowchart of another downlink control channel transmission method provided by some embodiments of the present disclosure. As shown in FIG. 2, the method includes the following steps:
201、网络侧设备向终端发送指示信息，所述指示信息用于指示下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式。201. The network side device sends instruction information to the terminal, where the instruction information is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
202、所述网络侧设备根据所述指示信息，进行所述下行控制信道发送。202. The network side device sends the downlink control channel according to the instruction information.
其中，所述指示信息与图1所示方法实施例中终端接收的指示消息相同。The instruction information is the same as the instruction message received by the terminal in the method embodiment shown in FIG. 1.
另外，在所述指示信息指示开启所述下行控制信道的重复传输模式的情况下，所述网络侧设备可以根据所述下行控制信道的重复次数对所述下行控制信道的数据调度消息进行重复发送。In addition, when the indication information indicates that the downlink control channel repeat transmission mode is turned on, the network-side device may repeatedly send the data scheduling message of the downlink control channel according to the number of repetitions of the downlink control channel .
本实施方式中，通过所述指示消息的指示，确定所述网络侧设备进行所述下行控制信道发送过程中的重复发送次数，以提升所述下行控制信道的可靠性。In this embodiment, the indication of the indication message is used to determine the number of repeated transmissions in the downlink control channel transmission process by the network side device, so as to improve the reliability of the downlink control channel.
可选的，所述指示信息包括：Optionally, the instruction information includes:
组公共下行控制信道携带的指示信息；或者The indication information carried by the group common downlink control channel; or
第一DCI format的DCI的特定bit位中的指示信息；或者Indication information in specific bits of DCI in the first DCI format; or
MAC CE中携带的指示信息；或者Instruction information carried in MAC CE; or
RRC信令(RRC signaling)携带的指示信息。The indication information carried by RRC signaling (RRC signaling).
可选的，所述组公共下行控制信道携带含所述终端在内的至少一个终端的指示信息；Optionally, the group of common downlink control channels carries indication information of at least one terminal including the terminal;
所述网络侧设备根据所述指示信息，进行所述下行控制信道发送，包括：The network side device sending the downlink control channel according to the instruction information includes:
所述网络侧设备根据所述终端的指示信息，对所述终端的所述下行控制信道进行发送。The network side device sends the downlink control channel of the terminal according to the instruction information of the terminal.
可选的，所述终端的指示信息用于指示：下行控制信道的重复传输次数，和/或，是否开启所述下行控制信道的重复传输模式；Optionally, the indication information of the terminal is used to indicate: the number of repeated transmissions of the downlink control channel, and/or whether to enable the repeated transmission mode of the downlink control channel;
且所述终端的指示信息用于指示还用于指示：And the indication information of the terminal is used to indicate that it is also used to indicate:
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式在所述组公共下行控制信道的传输周期内有效，或者，所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的有效在所述终端下一次成功接收到组公共下行控制信道终止。The number of repeated transmissions and/or whether the repetitive transmission mode of turning on the downlink control channel is valid during the transmission period of the group of common downlink control channels, or the number of repetitive transmissions and/or whether the downlink control channel is turned on The effective repetitive transmission mode is terminated the next time the terminal successfully receives the group common downlink control channel.
可选的，所述DCI的FDRA域全为1，所述特定bit位为所述DCI中未利用或者预留的N个bit，其中，所述N为大于或者等于1的整数。Optionally, the FDRA field of the DCI is all 1, and the specific bit bits are unused or reserved N bits in the DCI, where the N is an integer greater than or equal to 1.
可选的，在所述N为大于1的整数的情况下，所述特定bit位的第一部分bit用于指示所述DCI用于CFRA的调度或者用于所述下行控制信道的重复传输指示或者用于其他类型的用途；Optionally, in the case where N is an integer greater than 1, the first part of the specific bit is used to indicate that the DCI is used for CFRA scheduling or for a repeated transmission indication of the downlink control channel or For other types of uses;
所述特定bit位的第二部分bit用于指示所述下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式。The second part of the specific bit is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
可选的，所述第一部分bit为所述特定bit位中的前H个bit，所述第二部分bit为所述特定bit位除所述前H个bit之外的一个或者多个bit，所述H为小于所述N的整数。Optionally, the first partial bit is the first H bits of the specific bit, and the second partial bit is one or more bits of the specific bit except the first H bits, The H is an integer less than the N.
可选的，所述第二部分bit还用于指示：Optionally, the second part of the bit is also used to indicate:
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的生效时间。The number of repeated transmissions and/or whether the effective time of the repeated transmission mode of the downlink control channel is enabled.
可选的，所述DCI format为用于数据调度的DCI format或者用于回退下行调度的DCI format。Optionally, the DCI format is a DCI format used for data scheduling or a DCI format used for fallback downlink scheduling.
可选的，所述下行控制信道的重复传输次数为重复次数集合的一个子集， 其中，所述重复次数集合为协议预定义或者高层信令配置的。Optionally, the number of repeated transmissions of the downlink control channel is a subset of the set of repetitions, where the set of repetitions is predefined by the protocol or configured by high-level signaling.
可选的，所述重复传输模式的重复传输次数为协议预定义或者高层信令配置的；和/或Optionally, the number of repeated transmissions in the repeated transmission mode is predefined by the protocol or configured by high-level signaling; and/or
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的有效期为高层信令配置或者协议预定义。The number of repeated transmissions and/or the validity period of whether to enable the repeated transmission mode of the downlink control channel is pre-defined by high-level signaling configuration or protocol.
需要说明的是，本实施例作为与图1所示的实施例中对应的网络侧设备的实施方式，其具体的实施方式可以参见图2所示的实施例的相关说明，为了避免重复说明，本实施例不再赘述，且还可以达到相同有益效果。It should be noted that this embodiment is an implementation of the network-side device corresponding to the embodiment shown in FIG. 1. For a specific implementation, refer to the relevant description of the embodiment shown in FIG. 2. This embodiment will not go into details, and the same beneficial effects can also be achieved.
下面结合所述终端以及所述网络侧设备执行的步骤对所述下行控制信道的传输方法进行举例说明。The transmission method of the downlink control channel will be exemplified below with reference to the steps performed by the terminal and the network side device.
实施例5：Example 5:
假设驻留于系统中的两个终端为UE A和UE B。由于业务的需求，对其数据传输的可靠性有较高的要求，例如UE A为车对万物(Vehicle-to-everything，V2X)终端、电网(power grid)终端或者AR/VR(虚拟现实/增强现实)终端等。基站通过业务情况以及终端上报的信道状况，动态的调整下行控制信道的重复传输次数，用以提高下行控制信道传输的可靠性。Assume that the two terminals residing in the system are UE A and UE B. Due to business requirements, there are high requirements for the reliability of its data transmission. For example, UE A is a vehicle-to-everything (V2X) terminal, power grid terminal or AR/VR (virtual reality/ Augmented reality) terminal etc. The base station dynamically adjusts the number of repeated transmissions of the downlink control channel based on the service situation and the channel status reported by the terminal to improve the reliability of the downlink control channel transmission.
基站通过组组公共下行控制信道(group common PDCCH)上承载的DCI指示多个终端的数据调度下行控制信道的重复传输次数。具体而言，所述DCI中包含N个信息域(即N个指示信息)，每个信息域对应于一个或者多个终端，终端与信息域位置的对应关系通过RRC信令进行配置，且使用特定的无线网络临时标识(Radio Network Tempory Identity，RNTI)进行加扰，例如通过R-RNTI进行加扰。所述DCI的大小与在公共搜索空间(Common Search Space，CSS)中传输的DCI format 1-0的大小相同。The base station instructs the data of multiple terminals to schedule the number of repeated transmissions of the downlink control channel through the DCI carried on the group common downlink control channel (group common PDCCH). Specifically, the DCI contains N information domains (that is, N indication information), each information domain corresponds to one or more terminals, and the correspondence between the terminal and the information domain location is configured through RRC signaling and used The specific wireless network temporary identity (Radio Network Temporary Identity, RNTI) is scrambled, for example, by R-RNTI. The size of the DCI is the same as the size of the DCI format 1-0 transmitted in the common search space (Common Search Space, CSS).
在本实施例中，DCI中携带N个终端的下行控制信道的重复传输次数的bit域(即上述指示信息)。且每个bit域对应的字节长度为2bit，且所述2bit的bit域与下行控制信道的重复次数关系如下表3所示：00表示下行控制信道不需要重复传输，01表示需重复1次，10表示需要重复2次，11表示需要重复4次。In this embodiment, the DCI carries the bit field of the number of repeated transmissions of the downlink control channels of N terminals (that is, the above indication information). And the byte length corresponding to each bit field is 2 bits, and the relationship between the repetition times of the 2 bit bit field and the downlink control channel is shown in Table 3: 00 indicates that the downlink control channel does not need to be repeated, and 01 indicates that it needs to be repeated once , 10 means need to repeat 2 times, 11 means need to repeat 4 times.
表3table 3
下行控制信道的重复次数的bit域Bit field of the number of repetitions of the downlink control channel 重复次数repeat times
0000 00
0101 11
1010 22
1111 44
需要说明的是，在此对下行控制信道的重复次数的指示域的长度以和每个状态对应的重复次数不做限定。It should be noted that the length of the indication field of the number of repetitions of the downlink control channel and the number of repetitions corresponding to each state are not limited herein.
如上表3可以通过协议预定义的方式进行定义，亦可通过RRC信令进行配置。在此对下行控制信道的重复次数指示信息的状态与重复次数之间的关系不做任何限定，即高层信令可配置不同于上述表格的任意对应关系。As shown in Table 3 above, it can be defined in a pre-defined manner of the protocol, and can also be configured through RRC signaling. Here, the relationship between the state of the repetition count indication information of the downlink control channel and the repetition count is not limited, that is, the high-level signaling can be configured with any corresponding relationship different from the above table.
例如，如图3所示，UE A和UE B接收到了携带有指示信息的group common PDCCH，则在接收到所述group common PDCCH之后,确定其数据调度下行控制信道的重复次数。例如UE A对应的下行控制信道重复传输次数对应的信息域为01，UE B对应的下行控制信道重复传输次数对应的信息域为00，则UE A的下行控制信道需要重复传输2次，UE B的下行控制信道不需要进行重复传输。For example, as shown in FIG. 3, UE A and UE B receive the group common PDCCH carrying the indication information, and after receiving the group common PDCCH, determine the number of repetitions of the data scheduling downlink control channel. For example, the information field corresponding to the number of repeated transmissions of the downlink control channel corresponding to UEA is 01, and the information field corresponding to the number of repeated transmissions of the downlink control channel corresponding to UEB is 00, then the downlink control channel of UEA needs to be transmitted twice repeatedly, UEB The downlink control channel does not need to be repeatedly transmitted.
该方案可以根据终端不同的信道状况，动态的调整其下行控制信道的重复传输次数。例如当UE A的信道状况非常好，而UE B的信道状况发生了恶化，则可指示UE B的下行控制信道进行重复发送接收，以降低终端的复杂度以及降低时延。This solution can dynamically adjust the number of repeated transmissions of its downlink control channel according to different channel conditions of the terminal. For example, when the channel condition of UE A is very good, and the channel condition of UE B deteriorates, the downlink control channel of UE B can be instructed to repeatedly transmit and receive, so as to reduce the complexity of the terminal and reduce the delay.
另一方面，group common PDCCH携带的指示信息的生效时间为两次group common PDCCH传输之间的时隙，或者直到成功接收到下一个携带指示信息的group common PDCCH为止。On the other hand, the indication information carried by the group common PDCCH is valid for the time slot between two group common PDCCH transmissions, or until the next group common indication PDCCH carrying the indication information is successfully received.
需要注意的是，本公开一些实施例中对于PDCCH重复传输的具体方法不做任何限定。例如：在调度时可以先连续传输H次PDCCH，在PDCCH传输结束之后再传输物理层下行共享信道(Physical downlink shared channel，PDSCH)；或者PDCCH和PDSCH绑定传输，即每个PDCCH传输紧跟一个对应的调度PDSCH传输。It should be noted that in some embodiments of the present disclosure, the specific method for PDCCH repeated transmission is not limited. For example, during scheduling, the PDCCH can be continuously transmitted H times, and then the physical layer downlink shared channel (Physical Downlink Shared Channel, PDSCH) can be transmitted after the PDCCH transmission is completed; or the PDCCH and PDSCH are bundled and transmitted, that is, each PDCCH transmission is followed by one Correspondingly scheduled PDSCH transmission.
请参阅图4，是本是发明实施例提供的一种终端的结构图，如图4所示，终端400包括：Please refer to FIG. 4, which is a structural diagram of a terminal provided by an embodiment of the present invention. As shown in FIG. 4, the terminal 400 includes:
第一接收模块401，用于接收网络侧设备发送的指示信息，所述指示信息用于指示下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式；The first receiving module 401 is used to receive indication information sent by the network side device, the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel ;
第二接收模块402，用于根据所述指示信息，对所述下行控制信道进行接收。The second receiving module 402 is configured to receive the downlink control channel according to the instruction information.
可选的，所述指示信息包括：Optionally, the instruction information includes:
组公共下行控制信道携带的指示信息；或者The indication information carried by the group common downlink control channel; or
第一DCI format的DCI的特定bit位中的指示信息；或者Indication information in specific bits of DCI in the first DCI format; or
MAC CE中携带的指示信息；或者Instruction information carried in MAC CE; or
RRC信令携带的指示信息。Indication information carried by RRC signaling.
可选的，所述组公共下行控制信道携带含所述终端在内的至少一个终端的指示信息；Optionally, the group of common downlink control channels carries indication information of at least one terminal including the terminal;
所述第二接收模块402用于根据所述终端的指示信息，对所述下行控制信道进行接收。The second receiving module 402 is configured to receive the downlink control channel according to the indication information of the terminal.
可选的，所述终端的指示信息用于指示：下行控制信道的重复传输次数，和/或，是否开启所述下行控制信道的重复传输模式；Optionally, the indication information of the terminal is used to indicate: the number of repeated transmissions of the downlink control channel, and/or whether to enable the repeated transmission mode of the downlink control channel;
且所述终端的指示信息还用于指示：And the indication information of the terminal is also used to indicate:
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式在所述组公共下行控制信道的传输周期内有效，或者，所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的有效在所述终端下一次成功接收到组公共下行控制信道终止。The number of repeated transmissions and/or whether the repetitive transmission mode of turning on the downlink control channel is valid during the transmission period of the group of common downlink control channels, or the number of repetitive transmissions and/or whether the downlink control channel is turned on The effective repetitive transmission mode is terminated the next time the terminal successfully receives the group common downlink control channel.
可选的，所述DCI的频域资源分配FDRA域全为1，所述特定bit位为所述DCI中未利用或者预留的N个bit，其中，所述N为大于或者等于1的整数。Optionally, the frequency domain resource allocation of the DCI is all 1, and the specific bit is N bits that are not utilized or reserved in the DCI, where the N is an integer greater than or equal to 1. .
可选的，在所述N为大于1的整数的情况下，所述特定bit位的第一部分bit用于指示所述DCI用于非竞争随机接入CFRA的调度或者用于所述下行控制信道的重复传输指示或者用于其他类型的用途；Optionally, when the N is an integer greater than 1, the first part of the specific bit is used to indicate that the DCI is used for scheduling of non-contention random access CFRA or used for the downlink control channel Repeated transmission instructions or for other types of uses;
所述特定bit位的第二部分bit用于指示所述下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式。The second part of the specific bit is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
可选的，所述第一部分bit为所述特定bit位中的前H个bit，所述第二部分bit为所述特定bit位除所述前H个bit之外的一个或者多个bit，所述H为小于所述N的整数。Optionally, the first partial bit is the first H bits of the specific bit, and the second partial bit is one or more bits of the specific bit except the first H bits, The H is an integer less than the N.
可选的，所述第二部分bit还用于指示：Optionally, the second part of the bit is also used to indicate:
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的生效时间。The number of repeated transmissions and/or whether the effective time of the repeated transmission mode of the downlink control channel is enabled.
可选的，所述DCI format为用于数据调度的DCI format或者用于回退下行调度的DCI format。Optionally, the DCI format is a DCI format used for data scheduling or a DCI format used for fallback downlink scheduling.
可选的，所述下行控制信道的重复传输次数为重复次数集合的一个子集，其中，所述重复次数集合为协议预定义或者高层信令配置的。Optionally, the number of repeated transmissions of the downlink control channel is a subset of the set of repetitions, where the set of repetitions is predefined by the protocol or configured by high-level signaling.
可选的，所述重复传输模式的重复传输次数为协议预定义或者高层信令配置的；和/或Optionally, the number of repeated transmissions in the repeated transmission mode is predefined by the protocol or configured by high-level signaling; and/or
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的有效期为高层信令配置或者协议预定义。The number of repeated transmissions and/or the validity period of whether to enable the repeated transmission mode of the downlink control channel is pre-defined by high-level signaling configuration or protocol.
需要说明的是，本实施例中上述终端400可以是本公开一些实施例中方法实施例中任意实施方式的终端，本公开一些实施例中方法实施例中终端的任意实施方式都可以被本实施例中的上述终端400所实现，以及达到相同的有益效果，此处不再赘述。It should be noted that the above-mentioned terminal 400 in this embodiment may be a terminal of any implementation manner in the method embodiment in some embodiments of the present disclosure, and any implementation manner of the terminal in the method embodiment in some embodiments of the present disclosure may be implemented by this embodiment. The implementation of the above-mentioned terminal 400 in the example and the same beneficial effects will not be repeated here.
请参阅图5，是本公开实施力提供的一种网络侧设备的结构图，如图5所示，网络侧设备500包括：Please refer to FIG. 5, which is a structural diagram of a network-side device provided by the present disclosure. As shown in FIG. 5, the network-side device 500 includes:
第一发送模块501，用于向终端发送指示信息，所述指示信息用于指示下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式；The first sending module 501 is used to send instruction information to the terminal, where the instruction information is used to indicate the number of repeated transmissions of the downlink control channel, and/or to indicate whether to enable the repeated transmission mode of the downlink control channel;
第二发送模块502，用于根据所述指示信息，进行所述下行控制信道发送。The second sending module 502 is configured to send the downlink control channel according to the instruction information.
可选的，所述指示信息包括：Optionally, the instruction information includes:
组公共下行控制信道携带的指示信息；或者The indication information carried by the group common downlink control channel; or
第一DCI format的DCI的特定bit位中的指示信息；或者Indication information in specific bits of DCI in the first DCI format; or
MAC CE中携带的指示信息；或者Instruction information carried in MAC CE; or
RRC信令携带的指示信息。Indication information carried by RRC signaling.
可选的，所述组公共下行控制信道携带含所述终端在内的至少一个终端的指示信息；Optionally, the group of common downlink control channels carries indication information of at least one terminal including the terminal;
第二发送模块502用于根据所述终端的指示信息，对所述终端的所述下行控制信道进行发送。The second sending module 502 is configured to send the downlink control channel of the terminal according to the instruction information of the terminal.
可选的，所述终端的指示信息用于指示：下行控制信道的重复传输次数，和/或，是否开启所述下行控制信道的重复传输模式；Optionally, the indication information of the terminal is used to indicate: the number of repeated transmissions of the downlink control channel, and/or whether to enable the repeated transmission mode of the downlink control channel;
且所述终端的指示信息用于指示还用于指示：And the indication information of the terminal is used to indicate that it is also used to indicate:
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式在所述组公共下行控制信道的传输周期内有效，或者，所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的有效在所述终端下一次成功接收到组公共下行控制信道终止。The number of repeated transmissions and/or whether the repetitive transmission mode of turning on the downlink control channel is valid during the transmission period of the group of common downlink control channels, or the number of repetitive transmissions and/or whether the downlink control channel is turned on The effective repetitive transmission mode is terminated the next time the terminal successfully receives the group common downlink control channel.
可选的，所述DCI的FDRA域全为1，所述特定bit位为所述DCI中未利用或者预留的N个bit，其中，所述N为大于或者等于1的整数。Optionally, the FDRA field of the DCI is all 1, and the specific bit bits are unused or reserved N bits in the DCI, where the N is an integer greater than or equal to 1.
可选的，在所述N为大于1的整数的情况下，所述特定bit位的第一部分bit用于指示所述DCI用于CFRA的调度或者用于所述下行控制信道的重复传输指示或者用于其他类型的用途；Optionally, in the case where N is an integer greater than 1, the first part of the specific bit is used to indicate that the DCI is used for CFRA scheduling or for a repeated transmission indication of the downlink control channel or For other types of uses;
所述特定bit位的第二部分bit用于指示所述下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式。The second part of the specific bit is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
可选的，所述第一部分bit为所述特定bit位中的前H个bit，所述第二部分bit为所述特定bit位除所述前H个bit之外的一个或者多个bit，所述H为小于所述N的整数。Optionally, the first partial bit is the first H bits of the specific bit, and the second partial bit is one or more bits of the specific bit except the first H bits, The H is an integer less than the N.
可选的，所述第二部分bit还用于指示：Optionally, the second part of the bit is also used to indicate:
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的生效时间。The number of repeated transmissions and/or whether the effective time of the repeated transmission mode of the downlink control channel is enabled.
可选的，所述DCI format为用于数据调度的DCI format或者用于回退下行调度的DCI format。Optionally, the DCI format is a DCI format used for data scheduling or a DCI format used for fallback downlink scheduling.
可选的，所述下行控制信道的重复传输次数为重复次数集合的一个子集，其中，所述重复次数集合为协议预定义或者高层信令配置的。Optionally, the number of repeated transmissions of the downlink control channel is a subset of the set of repetitions, where the set of repetitions is predefined by the protocol or configured by high-level signaling.
可选的，所述重复传输模式的重复传输次数为协议预定义或者高层信令配置的；和/或Optionally, the number of repeated transmissions in the repeated transmission mode is predefined by the protocol or configured by high-level signaling; and/or
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的有效期为高层信令配置或者协议预定义。The number of repeated transmissions and/or the validity period of whether to enable the repeated transmission mode of the downlink control channel is pre-defined by high-level signaling configuration or protocol.
需要说明的是，本实施例中上述网络侧设备500可以是本公开一些实施例中方法实施例中任意实施方式的网络侧设备，本公开一些实施例中方法实施例中网络侧设备的任意实施方式都可以被本实施例中的上述网络侧设备500所实现，以及达到相同的有益效果，此处不再赘述。It should be noted that the above network-side device 500 in this embodiment may be a network-side device in any implementation manner in the method embodiments in some embodiments of the present disclosure, and any implementation of the network-side device in method embodiments in some embodiments of the present disclosure The methods can be implemented by the network side device 500 in this embodiment, and the same beneficial effects are achieved, which will not be repeated here.
请参见图6，图6是本公开一些实施例提供的另一种终端的结构图，如图6所示，该终端包括：收发机610、存储器620、处理器600及存储在所述存储器620上并可在所述处理器600上运行的程序，其中：Please refer to FIG. 6, which is a structural diagram of another terminal provided by some embodiments of the present disclosure. As shown in FIG. 6, the terminal includes: a transceiver 610, a memory 620, a processor 600, and stored in the memory 620 A program that can be run on the processor 600, where:
所述收发机610，用于接收网络侧设备发送的指示信息，所述指示信息用于指示下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式；The transceiver 610 is configured to receive indication information sent by a network side device, the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel ;
所述收发机610还用于根据所述指示信息，对所述下行控制信道进行接收。The transceiver 610 is further configured to receive the downlink control channel according to the instruction information.
其中，收发机1510，可以用于在处理器1500的控制下接收和发送数据。Among them, the transceiver 1510 can be used to receive and send data under the control of the processor 1500.
在图6中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器600代表的一个或多个处理器和存储器620代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机610可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。In FIG. 6, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 600 and various circuits of the memory represented by the memory 620 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, etc., which are well known in the art, and therefore, they will not be further described in this article. The bus interface provides an interface. The transceiver 610 may be a plurality of elements, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium.
处理器600负责管理总线架构和通常的处理，存储器620可以存储处理器600在执行操作时所使用的数据。The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 600 when performing operations.
需要说明的是，存储器620并不限定只在终端上，可以将存储器620和处理器600分离处于不同的地理位置。It should be noted that the memory 620 is not limited to the terminal, and the memory 620 and the processor 600 may be separated in different geographic locations.
可选的，所述指示信息包括：Optionally, the instruction information includes:
组公共下行控制信道携带的指示信息；或者The indication information carried by the group common downlink control channel; or
第一DCI format的DCI的特定bit位中的指示信息；或者Indication information in specific bits of DCI in the first DCI format; or
MAC CE中携带的指示信息；或者Instruction information carried in MAC CE; or
RRC信令携带的指示信息。Indication information carried by RRC signaling.
可选的，所述组公共下行控制信道携带含所述终端在内的至少一个终端的指示信息；Optionally, the group of common downlink control channels carries indication information of at least one terminal including the terminal;
所述收发机执行的根据所述指示信息，对所述下行控制信道进行接收的步骤，具体包括：The step performed by the transceiver to receive the downlink control channel according to the instruction information specifically includes:
根据所述终端的指示信息，对所述下行控制信道进行接收。Receiving the downlink control channel according to the instruction information of the terminal.
可选的，所述终端的指示信息用于指示：下行控制信道的重复传输次数，和/或，是否开启所述下行控制信道的重复传输模式；Optionally, the indication information of the terminal is used to indicate: the number of repeated transmissions of the downlink control channel, and/or whether to enable the repeated transmission mode of the downlink control channel;
且所述终端的指示信息还用于指示：And the indication information of the terminal is also used to indicate:
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式在所述组公共下行控制信道的传输周期内有效，或者，所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的有效在所述终端下一次成功接收到组公共下行控制信道终止。The number of repeated transmissions and/or whether the repetitive transmission mode of turning on the downlink control channel is valid during the transmission period of the group of common downlink control channels, or the number of repetitive transmissions and/or whether the downlink control channel is turned on The effective repetitive transmission mode is terminated the next time the terminal successfully receives the group common downlink control channel.
可选的，所述DCI的FDRA域全为1，所述特定bit位为所述DCI中未利用或者预留的N个bit，其中，所述N为大于或者等于1的整数。Optionally, the FDRA field of the DCI is all 1, and the specific bit bits are unused or reserved N bits in the DCI, where the N is an integer greater than or equal to 1.
可选的，在所述N为大于1的整数的情况下，所述特定bit位的第一部分bit用于指示所述DCI用于非竞争随机接入CFRA的调度或者用于所述下行控制信道的重复传输指示或者用于其他类型的用途；Optionally, when the N is an integer greater than 1, the first part of the specific bit is used to indicate that the DCI is used for scheduling of non-contention random access CFRA or used for the downlink control channel Repeated transmission instructions or for other types of uses;
所述特定bit位的第二部分bit用于指示所述下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式。The second part of the specific bit is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
可选的，所述第一部分bit为所述特定bit位中的前H个bit，所述第二部分bit为所述特定bit位除所述前H个bit之外的一个或者多个bit，所述H为小于所述N的整数。Optionally, the first partial bit is the first H bits of the specific bit, and the second partial bit is one or more bits of the specific bit except the first H bits, The H is an integer less than the N.
可选的，所述第二部分bit还用于指示：Optionally, the second part of the bit is also used to indicate:
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的 生效时间。The number of repeated transmissions and/or whether the effective time of the repeated transmission mode of the downlink control channel is enabled.
可选的，所述DCI format为用于数据调度的DCI format或者用于回退下行调度的DCI format。Optionally, the DCI format is a DCI format used for data scheduling or a DCI format used for fallback downlink scheduling.
可选的，所述下行控制信道的重复传输次数为重复次数集合的一个子集，其中，所述重复次数集合为协议预定义或者高层信令配置的。Optionally, the number of repeated transmissions of the downlink control channel is a subset of the set of repetitions, where the set of repetitions is predefined by the protocol or configured by high-level signaling.
可选的，所述重复传输模式的重复传输次数为协议预定义或者高层信令配置的；和/或Optionally, the number of repeated transmissions in the repeated transmission mode is predefined by the protocol or configured by high-level signaling; and/or
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的有效期为高层信令配置或者协议预定义。The number of repeated transmissions and/or the validity period of whether to enable the repeated transmission mode of the downlink control channel is pre-defined by high-level signaling configuration or protocol.
需要说明的是，本实施例中上述终端可以是本公开一些实施例中方法实施例中任意实施方式的终端，本公开一些实施例中方法实施例中终端的任意实施方式都可以被本实施例中的上述终端所实现，以及达到相同的有益效果，此处不再赘述。It should be noted that the above terminal in this embodiment may be a terminal of any implementation manner in the method embodiment in some embodiments of the present disclosure, and any implementation manner of the terminal in the method embodiment in some embodiments of the present disclosure may be used in this embodiment. The implementation of the above terminal in and the same beneficial effects will not be repeated here.
请参见图7，图7是本公开一些实施例提供的另一种网络侧设备的结构图，如图7所示，该网络侧设备包括：收发机710、存储器720、处理器700及存储在所述存储器720上并可在所述处理器上运行的程序，其中：Please refer to FIG. 7. FIG. 7 is a structural diagram of another network-side device provided by some embodiments of the present disclosure. As shown in FIG. 7, the network-side device includes: a transceiver 710, a memory 720, a processor 700, and stored in A program on the memory 720 that can run on the processor, where:
所述收发机710，用于向终端发送指示信息，所述指示信息用于指示下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式；The transceiver 710 is used to send instruction information to the terminal, where the instruction information is used to indicate the number of repeated transmissions of the downlink control channel, and/or to indicate whether to enable the repeated transmission mode of the downlink control channel;
所述收发机710还用于根据所述指示信息，进行所述下行控制信道发送。The transceiver 710 is further configured to send the downlink control channel according to the instruction information.
其中，收发机710，可以用于在处理器700的控制下接收和发送数据。Among them, the transceiver 710 can be used to receive and send data under the control of the processor 700.
在图7中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器700代表的一个或多个处理器和存储器720代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机710可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。In FIG. 7, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 700 and various circuits of the memory represented by the memory 720 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, etc., which are well known in the art, and therefore, they will not be further described in this article. The bus interface provides an interface. The transceiver 710 may be a plurality of elements, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium.
处理器700负责管理总线架构和通常的处理，存储器720可以存储处理器700在执行操作时所使用的数据。The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 may store data used by the processor 700 when performing operations.
需要说明的是，存储器720并不限定只在网络侧设备上，可以将存储器720和处理器700分离处于不同的地理位置。It should be noted that the memory 720 is not limited to only on the network side device, and the memory 720 and the processor 700 may be separated in different geographic locations.
可选的，所述指示信息包括：Optionally, the instruction information includes:
组公共下行控制信道携带的指示信息；或者The indication information carried by the group common downlink control channel; or
第一DCI format的DCI的特定bit位中的指示信息；或者Indication information in specific bits of DCI in the first DCI format; or
MAC CE中携带的指示信息；或者Instruction information carried in MAC CE; or
RRC信令携带的指示信息。Indication information carried by RRC signaling.
可选的，所述组公共下行控制信道携带含所述终端在内的至少一个终端的指示信息；Optionally, the group of common downlink control channels carries indication information of at least one terminal including the terminal;
所述收发机710执行的根据所述指示信息，进行所述下行控制信道发送，包括：The downlink control channel transmission performed by the transceiver 710 according to the instruction information includes:
所述收发机710根据所述终端的指示信息，对所述终端的所述下行控制信道进行发送。The transceiver 710 sends the downlink control channel of the terminal according to the instruction information of the terminal.
可选的，所述终端的指示信息用于指示：下行控制信道的重复传输次数，和/或，是否开启所述下行控制信道的重复传输模式；Optionally, the indication information of the terminal is used to indicate: the number of repeated transmissions of the downlink control channel, and/or whether to enable the repeated transmission mode of the downlink control channel;
且所述终端的指示信息用于指示还用于指示：And the indication information of the terminal is used to indicate that it is also used to indicate:
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式在所述组公共下行控制信道的传输周期内有效，或者，所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的有效在所述终端下一次成功接收到组公共下行控制信道终止。The number of repeated transmissions and/or whether the repetitive transmission mode of turning on the downlink control channel is valid during the transmission period of the group of common downlink control channels, or the number of repetitive transmissions and/or whether the downlink control channel is turned on The effective repetitive transmission mode is terminated the next time the terminal successfully receives the group common downlink control channel.
可选的，所述DCI的FDRA域全为1，所述特定bit位为所述DCI中未利用或者预留的N个bit，其中，所述N为大于或者等于1的整数。Optionally, the FDRA field of the DCI is all 1, and the specific bit bits are unused or reserved N bits in the DCI, where the N is an integer greater than or equal to 1.
可选的，在所述N为大于1的整数的情况下，所述特定bit位的第一部分bit用于指示所述DCI用于CFRA的调度或者用于所述下行控制信道的重复传输指示或者用于其他类型的用途；Optionally, in the case where N is an integer greater than 1, the first part of the specific bit is used to indicate that the DCI is used for CFRA scheduling or for a repeated transmission indication of the downlink control channel or For other types of uses;
所述特定bit位的第二部分bit用于指示所述下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式。The second part of the specific bit is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
可选的，所述第一部分bit为所述特定bit位中的前H个bit，所述第二部分bit为所述特定bit位除所述前H个bit之外的一个或者多个bit， 所述H为小于所述N的整数。Optionally, the first partial bit is the first H bits of the specific bit, and the second partial bit is one or more bits of the specific bit except the first H bits, The H is an integer less than the N.
可选的，所述第二部分bit还用于指示：Optionally, the second part of the bit is also used to indicate:
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的生效时间。The number of repeated transmissions and/or whether the effective time of the repeated transmission mode of the downlink control channel is enabled.
可选的，所述DCI format为用于数据调度的DCI format或者用于回退下行调度的DCI format。Optionally, the DCI format is a DCI format used for data scheduling or a DCI format used for fallback downlink scheduling.
可选的，所述下行控制信道的重复传输次数为重复次数集合的一个子集，其中，所述重复次数集合为协议预定义或者高层信令配置的。Optionally, the number of repeated transmissions of the downlink control channel is a subset of the set of repetitions, where the set of repetitions is predefined by the protocol or configured by high-level signaling.
可选的，所述重复传输模式的重复传输次数为协议预定义或者高层信令配置的；和/或Optionally, the number of repeated transmissions in the repeated transmission mode is predefined by the protocol or configured by high-level signaling; and/or
所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的有效期为高层信令配置或者协议预定义。The number of repeated transmissions and/or the validity period of whether to enable the repeated transmission mode of the downlink control channel is pre-defined by high-level signaling configuration or protocol.
需要说明的是，本实施例中上述网络侧设备可以是本公开一些实施例中方法实施例中任意实施方式的网络侧设备，本公开一些实施例中方法实施例中网络侧设备的任意实施方式都可以被本实施例中的上述网络侧设备所实现，以及达到相同的有益效果，此处不再赘述。It should be noted that the above network-side device in this embodiment may be a network-side device in any implementation manner in the method embodiments in some embodiments of the present disclosure, and any implementation in the network-side device in method embodiments in some embodiments of the present disclosure. Both can be realized by the above network side device in this embodiment, and achieve the same beneficial effects, which will not be repeated here.
本公开一些实施例还提供一种计算机可读存储介质，其上存储有计算机程序，其中，该程序被处理器执行时实现本公开一些实施例提供的终端侧的下行控制信道的传输方法中的步骤，或者该程序被处理器执行时实现本公开一些实施例提供的网络侧设备侧的下行控制信道的传输方法中的步骤。Some embodiments of the present disclosure also provide a computer-readable storage medium on which a computer program is stored, wherein, when the program is executed by a processor, a method for transmitting a downlink control channel on the terminal side provided by some embodiments of the present disclosure is implemented. Steps, or when the program is executed by the processor, implement the steps in the method for transmitting a downlink control channel on the network side device side provided by some embodiments of the present disclosure.
在本申请所提供的几个实施例中，应该理解到，所揭露方法和装置，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical, or other forms.
另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理包括，也可以两个或两个以上单元集成在一个单 元中。上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware, or in the form of hardware plus software functional units.
上述以软件功能单元的形式实现的集成的单元，可以存储在一个计算机可读取存储介质中。上述软件功能单元存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开各个实施例所述下行控制信道的传输方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。The above integrated unit implemented in the form of a software functional unit may be stored in a computer-readable storage medium. The above software functional unit is stored in a storage medium, and includes several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute part of the transmission method of the downlink control channel described in various embodiments of the present disclosure step. The foregoing storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .
以上所述是本公开的一些实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开所述原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本公开的保护范围。The above are some embodiments of the present disclosure. It should be noted that for those of ordinary skill in the art, without departing from the principles described in the present disclosure, several improvements and retouches can be made. These improvements and retouches also It should be regarded as the scope of protection of this disclosure.

Claims (35)

  1. 一种下行控制信道的传输方法，包括：A downlink control channel transmission method, including:
    终端接收网络侧设备发送的指示信息，所述指示信息用于指示下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式；The terminal receives indication information sent by the network side device, where the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or is used to indicate whether to enable the repeated transmission mode of the downlink control channel;
    所述终端根据所述指示信息，对所述下行控制信道进行接收。The terminal receives the downlink control channel according to the instruction information.
  2. 如权利要求1所述的方法，其中，所述指示信息包括：The method of claim 1, wherein the indication information comprises:
    组公共下行控制信道携带的指示信息；或者The indication information carried by the group common downlink control channel; or
    第一下行控制信息格式DCI format的DCI的特定比特bit位中的指示信息；或者Indication information in specific bits of DCI in the first downlink control information format DCI format; or
    媒体接入控制控制单元MAC CE中携带的指示信息；或者The indication information carried in the MAC access control unit MAC CE; or
    无线资源控制RRC信令携带的指示信息。Indication information carried by radio resource control RRC signaling.
  3. 如权利要求2所述的方法，其中，所述组公共下行控制信道携带含所述终端在内的至少一个终端的指示信息；The method according to claim 2, wherein the group of common downlink control channels carries indication information of at least one terminal including the terminal;
    所述终端根据所述指示信息，对所述下行控制信道进行接收，包括：The terminal receiving the downlink control channel according to the instruction information includes:
    所述终端根据所述终端的指示信息，对所述下行控制信道进行接收。The terminal receives the downlink control channel according to the instruction information of the terminal.
  4. 如权利要求3所述的方法，其中，所述终端的指示信息用于指示：下行控制信道的重复传输次数，和/或，是否开启所述下行控制信道的重复传输模式；The method according to claim 3, wherein the indication information of the terminal is used to indicate: the number of repeated transmissions of the downlink control channel, and/or whether to enable the repeated transmission mode of the downlink control channel;
    且所述终端的指示信息还用于指示：And the indication information of the terminal is also used to indicate:
    所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式在所述组公共下行控制信道的传输周期内有效，或者，所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的有效在所述终端下一次成功接收到组公共下行控制信道终止。The number of repeated transmissions and/or whether the repetitive transmission mode of turning on the downlink control channel is valid during the transmission period of the group of common downlink control channels, or the number of repetitive transmissions and/or whether the downlink control channel is turned on The effective repetitive transmission mode is terminated the next time the terminal successfully receives the group common downlink control channel.
  5. 如权利要求2所述的方法，其中，所述DCI的频域资源分配FDRA域全为1，所述特定bit位为所述DCI中未利用或者预留的N个bit，其中，所述N为大于或者等于1的整数。The method according to claim 2, wherein the frequency domain resource allocation of the DCI is all 1 in the FDRA domain, and the specific bit is N unused or reserved bits in the DCI, wherein the N It is an integer greater than or equal to 1.
  6. 如权利要求5所述的方法，其中，在所述N为大于1的整数的情况下， 所述特定bit位的第一部分bit用于指示所述DCI用于非竞争随机接入CFRA的调度或者用于所述下行控制信道的重复传输指示或者用于其他类型的用途；The method according to claim 5, wherein, in the case where the N is an integer greater than 1, the first part of the specific bit is used to indicate that the DCI is used for non-contention random access CFRA scheduling or For the repeated transmission indication of the downlink control channel or for other types of uses;
    所述特定bit位的第二部分bit用于指示所述下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式。The second part of the specific bit is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
  7. 如权利要求6所述的方法，其中，所述第一部分bit为所述特定bit位中的前H个bit，所述第二部分bit为所述特定bit位除所述前H个bit之外的一个或者多个bit，所述H为小于所述N的整数。The method of claim 6, wherein the first partial bit is the first H bits of the specific bit and the second partial bit is the specific bit except the first H bits Of one or more bits, H is an integer less than N.
  8. 如权利要求6所述的方法，其中，所述第二部分bit还用于指示：The method of claim 6, wherein the second partial bit is further used to indicate:
    所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的生效时间。The number of repeated transmissions and/or whether the effective time of the repeated transmission mode of the downlink control channel is enabled.
  9. 如权利要求6所述的方法，其中，所述DCI format为用于数据调度的DCI format或者用于回退下行调度的DCI format。The method of claim 6, wherein the DCI format is a DCI format used for data scheduling or a DCI format used for fallback downlink scheduling.
  10. 如权利要求1至9中任一项所述的方法，其中，所述下行控制信道的重复传输次数为重复次数集合的一个子集，其中，所述重复次数集合为协议预定义或者高层信令配置的。The method according to any one of claims 1 to 9, wherein the number of repeated transmissions of the downlink control channel is a subset of the set of repetitions, wherein the set of repetitions is predefined by the protocol or high-level signaling Configured.
  11. 如权利要求1至9中任一项所述的方法，其中，所述重复传输模式的重复传输次数为协议预定义或者高层信令配置的；和/或The method according to any one of claims 1 to 9, wherein the number of repeated transmissions of the repeated transmission mode is predefined by a protocol or configured by high-level signaling; and/or
    所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的有效期为高层信令配置或者协议预定义。The number of repeated transmissions and/or the validity period of whether to enable the repeated transmission mode of the downlink control channel is pre-defined by high-level signaling configuration or protocol.
  12. 一种下行控制信道的传输方法，包括：A downlink control channel transmission method, including:
    网络侧设备向终端发送指示信息，所述指示信息用于指示下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式；The network side device sends indication information to the terminal, where the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or is used to indicate whether to enable the repeated transmission mode of the downlink control channel;
    所述网络侧设备根据所述指示信息，进行所述下行控制信道发送。The network side device sends the downlink control channel according to the instruction information.
  13. 如权利要求12所述的方法，其中，所述指示信息包括：The method of claim 12, wherein the indication information comprises:
    组公共下行控制信道携带的指示信息；或者The indication information carried by the group common downlink control channel; or
    第一DCI format的DCI的特定bit位中的指示信息；或者Indication information in specific bits of DCI in the first DCI format; or
    MAC CE中携带的指示信息；或者Instruction information carried in MAC CE; or
    RRC信令携带的指示信息。Indication information carried by RRC signaling.
  14. 如权利要求13所述的方法，其中，所述组公共下行控制信道携带含所述终端在内的至少一个终端的指示信息；The method according to claim 13, wherein the group of common downlink control channels carries indication information of at least one terminal including the terminal;
    所述网络侧设备根据所述指示信息，进行所述下行控制信道发送，包括：The network side device sending the downlink control channel according to the instruction information includes:
    所述网络侧设备根据所述终端的指示信息，对所述终端的所述下行控制信道进行发送。The network side device sends the downlink control channel of the terminal according to the instruction information of the terminal.
  15. 如权利要求14所述的方法，其中，所述终端的指示信息用于指示：下行控制信道的重复传输次数，和/或，是否开启所述下行控制信道的重复传输模式；The method according to claim 14, wherein the indication information of the terminal is used to indicate: the number of repeated transmissions of the downlink control channel, and/or whether to enable the repeated transmission mode of the downlink control channel;
    且所述终端的指示信息用于指示还用于指示：And the indication information of the terminal is used to indicate that it is also used to indicate:
    所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式在所述组公共下行控制信道的传输周期内有效，或者，所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的有效在所述终端下一次成功接收到组公共下行控制信道终止。The number of repeated transmissions and/or whether the repetitive transmission mode of turning on the downlink control channel is valid during the transmission period of the group of common downlink control channels, or the number of repetitive transmissions and/or whether the downlink control channel is turned on The effective repetitive transmission mode is terminated the next time the terminal successfully receives the group common downlink control channel.
  16. 如权利要求13所述的方法，其中，所述DCI的FDRA域全为1，所述特定bit位为所述DCI中未利用或者预留的N个bit，其中，所述N为大于或者等于1的整数。The method according to claim 13, wherein the FDRA field of the DCI is all 1, and the specific bit is N bits that are not utilized or reserved in the DCI, wherein the N is greater than or equal to An integer of 1.
  17. 如权利要求16所述的方法，其中，在所述N为大于1的整数的情况下，所述特定bit位的第一部分bit用于指示所述DCI用于CFRA的调度或者用于所述下行控制信道的重复传输指示或者用于其他类型的用途；The method according to claim 16, wherein in the case where the N is an integer greater than 1, the first part of the specific bit is used to indicate that the DCI is used for CFRA scheduling or for the downlink Control channel repetitive transmission instructions or for other types of uses;
    所述特定bit位的第二部分bit用于指示所述下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式。The second part of the specific bit is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel.
  18. 如权利要求17所述的方法，其中，所述第一部分bit为所述特定bit位中的前H个bit，所述第二部分bit为所述特定bit位除所述前H个bit之外的一个或者多个bit，所述H为小于所述N的整数。The method of claim 17, wherein the first partial bit is the first H bits of the specific bit, and the second partial bit is the specific bit except the first H bits Of one or more bits, H is an integer less than N.
  19. 如权利要求17所述的方法，其中，所述第二部分bit还用于指示：The method of claim 17, wherein the second partial bit is further used to indicate:
    所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的生效时间。The number of repeated transmissions and/or whether the effective time of the repeated transmission mode of the downlink control channel is enabled.
  20. 如权利要求17所述的方法，其中，所述DCI format为用于数据调度的DCI format或者用于回退下行调度的DCI format。The method of claim 17, wherein the DCI format is a DCI format used for data scheduling or a DCI format used for fallback downlink scheduling.
  21. 如权利要求12至20中任一项所述的方法，其中，所述下行控制信道的重复传输次数为重复次数集合的一个子集，其中，所述重复次数集合为协议预定义或者高层信令配置的。The method according to any one of claims 12 to 20, wherein the number of repeated transmissions of the downlink control channel is a subset of the set of repetitions, wherein the set of repetitions is predefined by the protocol or high-level signaling Configured.
  22. 如权利要求12至20中任一项所述的方法，其中，所述重复传输模式的重复传输次数为协议预定义或者高层信令配置的；和/或The method according to any one of claims 12 to 20, wherein the number of repeated transmissions of the repeated transmission mode is predefined by a protocol or configured by high-level signaling;
    所述重复传输次数和/或是否开启所述下行控制信道的重复传输模式的有效期为高层信令配置或者协议预定义。The number of repeated transmissions and/or the validity period of whether to enable the repeated transmission mode of the downlink control channel is pre-defined by high-level signaling configuration or protocol.
  23. 一种终端，包括：A terminal, including:
    第一接收模块，用于接收网络侧设备发送的指示信息，所述指示信息用于指示下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式；The first receiving module is used to receive indication information sent by the network side device, the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or used to indicate whether to enable the repeated transmission mode of the downlink control channel;
    第二接收模块，用于根据所述指示信息，对所述下行控制信道进行接收。The second receiving module is configured to receive the downlink control channel according to the instruction information.
  24. 如权利要求23所述的终端，其中，所述指示信息包括：The terminal of claim 23, wherein the indication information comprises:
    组公共下行控制信道携带的指示信息；或者The indication information carried by the group common downlink control channel; or
    第一DCI format的DCI的特定bit位中的指示信息；或者Indication information in specific bits of DCI in the first DCI format; or
    MAC CE中携带的指示信息；或者Instruction information carried in MAC CE; or
    RRC信令携带的指示信息。Indication information carried by RRC signaling.
  25. 如权利要求24所述的终端，其中，所述组公共下行控制信道携带含所述终端在内的至少一个终端的指示信息；The terminal according to claim 24, wherein the group of common downlink control channels carries indication information of at least one terminal including the terminal;
    所述第二接收模块用于根据所述终端的指示信息，对所述下行控制信道进行接收。The second receiving module is configured to receive the downlink control channel according to the instruction information of the terminal.
  26. 一种网络侧设备，包括：A network-side device, including:
    第一发送模块，用于向终端发送指示信息，所述指示信息用于指示下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式；The first sending module is used to send instruction information to the terminal, where the instruction information is used to indicate the number of repeated transmissions of the downlink control channel, and/or to indicate whether to enable the repeated transmission mode of the downlink control channel;
    第二发送模块，用于根据所述指示信息，进行所述下行控制信道发送。The second sending module is configured to send the downlink control channel according to the instruction information.
  27. 如权利要求26所述的网络侧设备，其中，所述指示信息包括：The network side device according to claim 26, wherein the indication information includes:
    组公共下行控制信道携带的指示信息；或者The indication information carried by the group common downlink control channel; or
    第一DCI format的DCI的特定bit位中的指示信息；或者Indication information in specific bits of DCI in the first DCI format; or
    MAC CE中携带的指示信息；或者Instruction information carried in MAC CE; or
    RRC信令携带的指示信息。Indication information carried by RRC signaling.
  28. 如权利要求27所述的网络侧设备，其中，所述组公共下行控制信道携带含所述终端在内的至少一个终端的指示信息；The network side device according to claim 27, wherein the group of common downlink control channels carries indication information of at least one terminal including the terminal;
    第二发送模块用于根据所述终端的指示信息，对所述终端的所述下行控制信道进行发送。The second sending module is configured to send the downlink control channel of the terminal according to the instruction information of the terminal.
  29. 一种终端，包括：收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，其中，A terminal includes: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor, wherein,
    所述收发机，用于接收网络侧设备发送的指示信息，所述指示信息用于指示下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式；The transceiver is used to receive indication information sent by the network side device, the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or is used to indicate whether to enable the repeated transmission mode of the downlink control channel;
    所述收发机还用于根据所述指示信息，对所述下行控制信道进行接收。The transceiver is further configured to receive the downlink control channel according to the instruction information.
  30. 如权利要求29所述的终端，其中，所述指示信息包括：The terminal of claim 29, wherein the indication information comprises:
    组公共下行控制信道携带的指示信息；或者The indication information carried by the group common downlink control channel; or
    第一DCI format的DCI的特定bit位中的指示信息；或者Indication information in specific bits of DCI in the first DCI format; or
    MAC CE中携带的指示信息；或者Instruction information carried in MAC CE; or
    RRC信令携带的指示信息。Indication information carried by RRC signaling.
  31. 如权利要求30所述的终端，其中，所述组公共下行控制信道携带含所述终端在内的至少一个终端的指示信息；The terminal according to claim 30, wherein the group of common downlink control channels carries indication information of at least one terminal including the terminal;
    所述收发机具体用于：The transceiver is specifically used for:
    根据所述终端的指示信息，对所述下行控制信道进行接收。Receiving the downlink control channel according to the instruction information of the terminal.
  32. 一种网络侧设备，包括：收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序，其中，A network-side device, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor, wherein,
    所述收发机，用于向终端发送指示信息，所述指示信息用于指示下行控制信道的重复传输次数，和/或，用于指示是否开启所述下行控制信道的重复传输模式；The transceiver is used to send indication information to the terminal, the indication information is used to indicate the number of repeated transmissions of the downlink control channel, and/or is used to indicate whether to enable the repeated transmission mode of the downlink control channel;
    所述收发机还用于根据所述指示信息，进行所述下行控制信道发送。The transceiver is further configured to send the downlink control channel according to the instruction information.
  33. 如权利要求32所述的网络侧设备，其中，所述指示信息包括：The network side device according to claim 32, wherein the indication information includes:
    组公共下行控制信道携带的指示信息；或者The indication information carried by the group common downlink control channel; or
    第一DCI format的DCI的特定bit位中的指示信息；或者Indication information in specific bits of DCI in the first DCI format; or
    MAC CE中携带的指示信息；或者Instruction information carried in MAC CE; or
    RRC信令携带的指示信息。Indication information carried by RRC signaling.
  34. 如权利要求33所述的网络侧设备，其中，所述组公共下行控制信道携带含所述终端在内的至少一个终端的指示信息；The network side device according to claim 33, wherein the group of common downlink control channels carries indication information of at least one terminal including the terminal;
    所述收发机执行的所述根据所述指示信息，进行所述下行控制信道发送，包括：The downlink control channel transmission performed by the transceiver according to the instruction information includes:
    所述收发机根据所述终端的指示信息，对所述终端的所述下行控制信道进行发送。The transceiver transmits the downlink control channel of the terminal according to the instruction information of the terminal.
  35. 一种计算机可读存储介质，其上存储有计算机程序，其中，该程序被处理器执行时实现如权利要求1至11中任一项所述的下行控制信道的传输方法中的步骤，或者该程序被处理器执行时实现如权利要求12至22中任一项所述的下行控制信道的传输方法中的步骤。A computer-readable storage medium on which a computer program is stored, wherein, when the program is executed by a processor, the steps in the method for transmitting a downlink control channel according to any one of claims 1 to 11 are implemented, or the When the program is executed by the processor, the steps in the method for transmitting a downlink control channel according to any one of claims 12 to 22 are realized.
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