WO2020156223A1 - 一种信号发送方法、信号接收方法以及相关设备 - Google Patents

一种信号发送方法、信号接收方法以及相关设备 Download PDF

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Publication number
WO2020156223A1
WO2020156223A1 PCT/CN2020/072640 CN2020072640W WO2020156223A1 WO 2020156223 A1 WO2020156223 A1 WO 2020156223A1 CN 2020072640 W CN2020072640 W CN 2020072640W WO 2020156223 A1 WO2020156223 A1 WO 2020156223A1
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WIPO (PCT)
Prior art keywords
time
frequency resource
resource set
indication information
terminal device
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PCT/CN2020/072640
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English (en)
French (fr)
Inventor
谢信乾
郭志恒
费永强
毕文平
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华为技术有限公司
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Publication of WO2020156223A1 publication Critical patent/WO2020156223A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • This application relates to the field of communications, and in particular to a signal sending method, a signal receiving method, and related equipment.
  • the New Radio (NR) technology in the fifth generation mobile communication system defines the synchronization signal/broadcast channel block (SS/PBCH block, SSB), and one SSB contains the primary synchronization signal (primary synchronization signal, PSS), secondary synchronization signal (secondary synchronization signal, SSS), and physical broadcast channel (Physical Broadcast Channel, PBCH).
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • PBCH Physical Broadcast Channel
  • the PBCH will carry the indication of the physical Downlink Control Channel (PDCCH). Information about the location of the frequency resource set in the time domain and frequency domain.
  • the network device will send the physical downlink control channel (PDCCH) to the terminal device in the time-frequency resource set.
  • the PDCCH carries the downlink control information sent by the network device (Downlink Control Information, DCI). Then the terminal device receives the PDCCH according to the PBCH instruction and obtains the DCI therein.
  • DCI Downlink Control Information
  • the 5G-NR system needs to support wider coverage, that is, it needs to cover terminal equipment farther from the network equipment.
  • the signal-to-noise ratio (SNR) of these terminal equipment ) Is extremely low, so that the terminal equipment that is far from the network equipment often has a lower accuracy of receiving DCI.
  • the present application provides a signal sending method, a signal receiving method, and related equipment.
  • the network equipment can respectively transmit data on a first time-frequency resource in a first time-frequency resource set and a second time-frequency resource in a second time-frequency resource set.
  • the terminal device repeatedly sends the control information, so that the terminal device can receive at least two copies of the same control information within one transmission period of the control information, thereby improving the accuracy of the terminal device receiving the control information.
  • the present application provides a signal sending method.
  • the method includes: a network device can send a first indication information to a terminal device, the first indication information is used to indicate a first time-frequency resource set, and the network device can also send a signal to the terminal device.
  • the second indication information is used to indicate the presence or absence of the second time-frequency resource set
  • the network device sends control information to the terminal device on the first time-frequency resource in the first time-frequency resource set
  • the second When the indication information indicates that the second time-frequency resource set exists, the network device repeatedly sends control information to the terminal device on the second time-frequency resource in the second time-frequency resource set, where the first time-frequency resource set includes multiple
  • the time-frequency resource includes the first time-frequency resource
  • the second time-frequency resource set includes the second time-frequency resource
  • the second time-frequency resource set is the time for the network device to repeatedly send control information.
  • the first time-frequency resource set and the second time-frequency resource set can belong to the same transmission period of control information in the time domain.
  • the existence of the second time-frequency resource set refers to the existence of the The terminal device repeatedly sends the second time-frequency resource of the control information.
  • the absence of the second time-frequency resource means that there is no second time-frequency resource for the network device to repeatedly send the control information to the terminal device.
  • the network device sends the first instruction information to the terminal device, so that the terminal device can determine the first time-frequency resource set according to the first instruction information, and obtain it from the first time-frequency resource in the first time-frequency resource set Control information, the network device also sends second instruction information to the terminal device, and the terminal device determines whether the second time-frequency resource set exists or not according to the second instruction information.
  • the terminal device may be in the first If the second time-frequency resource of the second time-frequency resource set receives the control information repeatedly sent by the network device, the terminal device can receive at least two copies of the same control information within one transmission period of the control information, thereby improving the terminal device receiving control The accuracy of the information; in addition, this solution provides a specific implementation method for repeatedly sending control information, which improves the feasibility of this solution.
  • the method may further include: the network device may determine the indication type of the second indication information sent to the terminal device according to related factors, The related factors may include the distance between the network device and the terminal device or the communication quality between the network device and the terminal device, and the indication type of the second indication information includes the existence of the second time-frequency resource set and the absence of the second time-frequency resource .
  • the network device may also determine the type of the second indication information in combination with related factors, that is, determine whether to repeatedly send control information to the terminal device.
  • the control information is repeatedly sent, thereby improving the correct rate of the terminal device receiving the control information.
  • the first time-frequency resource set and the second time-frequency resource set are respectively located on consecutive and different symbols in the same time slot in the time domain, where the symbols may be orthogonal Frequency division multiplexing symbols, general filtering multi-carrier symbols or generalized frequency division multiplexing symbols.
  • the first time-frequency resource set and the second time-frequency resource set may be located on consecutive and different symbols in the same time slot in the time domain, so that the terminal device determines that there is a second time-frequency resource set according to the second indication information.
  • the terminal device can receive at least two copies of the same control information on several consecutive symbols, which not only improves the success rate of the terminal device detecting control information, but also saves the terminal device monitoring control information. time.
  • the number of symbols occupied by the first time-frequency resource set and the second time-frequency resource set in the time domain does not exceed three.
  • the number of symbols occupied in the time domain of the time-frequency resources reserved for control information is three, the number of symbols occupied in the time domain in the first time-frequency resource set and the second time-frequency resource set does not exceed three. In this case, the overhead of time-frequency resources occupied by the entire control information can be kept low.
  • the first time-frequency resource set occupies one symbol in the time domain
  • the second time-frequency resource set occupies one or two symbols in the time domain.
  • the number of symbols occupied by the second time-frequency resource set in the time domain is greater than the number of symbols occupied by the first time-frequency resource set in the time domain, thereby ensuring that the network device can transmit at least one symbol through the second time-frequency resource set.
  • a complete control information so as to ensure that the terminal device can receive two or even three copies of the same control information, which improves the success rate of the terminal device in detecting the control information.
  • the second indication information when the second indication information indicates that the second time-frequency resource set exists, the second indication information further indicates that the second time-frequency resource set is in time with the first time-frequency resource set.
  • the domains are located on consecutive and different symbols in the same time slot; or, when the second indication information indicates that the second time-frequency resource set exists, the second indication information is also used to indicate the second time-frequency resource set and the second time-frequency resource set.
  • the time-frequency resource sets are located in different time slots in the time domain.
  • the second indication information sent by the network device may also be used to indicate the location of the second time-frequency resource set, so that the terminal device can preliminarily determine the location of the second time-frequency resource set according to the second indication information, reducing the size of the terminal device
  • the range of monitoring control information helps reduce the load on the terminal equipment.
  • the second indication information when the second indication information indicates that the second time-frequency resource set exists, the second indication information is also used to indicate that the second time-frequency resource set is in the time domain within a time period.
  • the second indication information sent by the network device may also be used to indicate the number of symbols in the second time-frequency resource set, so that the terminal device can determine the number of symbols in the second time-frequency resource set according to the second indication information.
  • the terminal device In the process of monitoring control information, if the control information has been repeatedly monitored in L symbols, when L symbols are equal to the number of symbols indicated by the second indication information, the terminal device does not need to monitor control information on other time-frequency resources. Conducive to reducing the load of terminal equipment.
  • the second indication information indicates that the second time-frequency resource set and the first time-frequency resource set are respectively located on consecutive and different symbols in the same time slot in the time domain .
  • the second indication information also indicates the number of symbols occupied by the second time-frequency resource set in the time domain; or, the second indication information indicates that the second time-frequency resource set and the first time-frequency resource set are respectively in the time domain In the case of being in a different time slot, the second indication information also indicates the number of symbols occupied by the second time-frequency resource set in the time domain.
  • the second indication information sent by the network device not only indicates the location of the second time-frequency resource set, but also indicates the number of symbols occupied by the second time-frequency resource set, so that the terminal device can compare the second indication information to the second
  • the time-frequency resource set performs precise positioning, which reduces the range of terminal equipment monitoring control information, which is beneficial to reduce the load of terminal equipment.
  • the frequency domain resources occupied by the first time-frequency resource and the second time-frequency resource are the same.
  • the network device can repeatedly send control information in the same frequency domain, which is beneficial for the network device to complete the repeated transmission operation of control information, and is also beneficial for the network device to manage time-frequency resources.
  • the number of symbols occupied by the first time-frequency resource and the second time-frequency resource in the time domain is equal.
  • this application provides a signal receiving method.
  • the method includes: a terminal device receives first indication information sent by a network device, the first indication information is used to indicate a first time-frequency resource set, and the terminal device receives the first indication information sent by the network device. 2. Indication information.
  • the second indication information is used to indicate the presence or absence of the second time-frequency resource set, and the terminal device monitors the control information in the first time-frequency resource set to be on the first time-frequency resource in the first time-frequency resource set
  • the terminal device After receiving the control information sent by the network device, in the case that the terminal device determines that the second time-frequency resource set exists according to the second indication information, the terminal device repeatedly monitors the control information, so that the second time-frequency resource of the second time-frequency resource set
  • the control information sent by the network device is received on the computer, where the multiple time-frequency resources included in the first time-frequency resource set include the first time-frequency resource, and the second time-frequency resource set includes the second time-frequency resource. Time-frequency resources.
  • the second time-frequency resource set is a time-frequency resource set used for network devices to repeatedly send control information.
  • the first time-frequency resource set and the second time-frequency resource set can belong to the same control information in the time domain.
  • the existence of the second time-frequency resource set refers to the existence of the second time-frequency resource for the network device to repeatedly send control information to the terminal device.
  • the absence of the second time-frequency resource means that it does not exist The second time-frequency resource used for the network device to repeatedly send control information to the terminal device.
  • the terminal device may receive the first indication information sent by the network device, and thus receive the control information on the first time-frequency resource of the first time-frequency resource set according to the indication of the first indication information, and the terminal device may also After receiving the second indication information sent by the network device, when the second indication information indicates that the second time-frequency resource set exists, the terminal device repeatedly monitors the control information, so that the second time-frequency resource in the second time-frequency resource set If the control information is repeatedly monitored, the terminal device can receive at least two copies of the same control information within one control information transmission cycle, thereby improving the correct rate of the terminal device receiving control information; in addition, this solution provides repeated transmission control The specific implementation of the information improves the feasibility of this solution.
  • this application provides a signal sending method.
  • the method includes: a network device can send a terminal device containing first indication information, the first indication information is used to indicate a first time-frequency resource set, and the network device can The control information is sent to the terminal device on the first time-frequency resource in the frequency resource set.
  • the network device may also send control information on the first time-frequency resource set in the second time-frequency resource set. Control information is repeatedly sent to the terminal device on the second time-frequency resource, where the multiple time-frequency resources included in the first time-frequency resource set include the first time-frequency resource, and the second time-frequency resource set includes the multiple time-frequency resources Contains the second time-frequency resource.
  • the second time-frequency resource set is a time-frequency resource set for network equipment to repeatedly send control information.
  • the first time-frequency resource set and the second time-frequency resource set can be attributed to control in the time domain.
  • relevant factors include the distance between the network device and the terminal device or the communication quality between the network device and the terminal device.
  • the network device sends the first instruction information to the terminal device, so that the terminal device can determine the first time-frequency resource set according to the first instruction information, and obtain it from the first time-frequency resource in the first time-frequency resource set Control information, the network device can also repeatedly send the control information to the terminal device on the second time-frequency resource in the second time-frequency resource set under the condition that the preset repeated transmission control information is satisfied, so that the terminal device can be in the second time If the control information repeatedly sent by the network device is received on the second time-frequency resource of the frequency resource set, the terminal device can receive at least two copies of the same control information within one transmission period of the control information, thereby improving the terminal device’s ability to receive control information. Correct rate; in addition, the network device can determine according to relevant factors that the control information is repeatedly sent to the terminal device only when the preset condition for repeatedly sending the control information is met, thereby avoiding the waste of communication resources.
  • the preset condition for repeatedly sending control information includes that the distance between the network device and the terminal device is greater than or equal to the first preset threshold and/or the communication between the network device and the terminal device The quality is lower than or equal to the second threshold.
  • the specific content of the preset repeated sending control information conditions is provided, which improves the operability of the solution.
  • the first time-frequency resource set and the second time-frequency resource set are respectively located on consecutive and different symbols in the same time slot in the time domain, where the symbols may be orthogonal Frequency division multiplexing symbols, general filtering multi-carrier symbols or generalized frequency division multiplexing symbols.
  • the number of symbols occupied by the first time-frequency resource set and the second time-frequency resource set in the time domain does not exceed three.
  • the first time-frequency resource set occupies one symbol in the time domain
  • the second time-frequency resource set occupies one or two symbols in the time domain.
  • the frequency domain resources occupied by the first time-frequency resource and the second time-frequency resource are the same.
  • the number of symbols occupied by the first time-frequency resource and the second time-frequency resource in the time domain is equal.
  • the present application provides a signal receiving method.
  • the method includes: a terminal device can receive first indication information sent by a network device, and determine the position of the first time-frequency resource set according to the indication of the first indication information.
  • the control information is monitored on the time-frequency resource set to receive the control information sent by the network device on the first time-frequency resource in the first time-frequency resource set.
  • the terminal device may also determine according to the first time-frequency resource set and preset rules The location of the second time-frequency resource set, and repeatedly monitor the control information on the second time-frequency resource set, and when the network device repeatedly sends the control information on the second time-frequency resource of the second time-frequency resource set, the terminal device
  • the control information repeatedly sent by the network device may be received on the second time-frequency resource of the second time-frequency resource set, where the first time-frequency resource set and the second time-frequency resource set may belong to the control information in the time domain Within the same transmission cycle.
  • the terminal device may receive the first indication information sent by the network device, and thus receive the control information on the first time-frequency resource of the first time-frequency resource set according to the indication of the first indication information, and the terminal device may also The preset rule determines the position of the second time-frequency resource set, and repeatedly monitors the control information on the second time-frequency resource set, then the network device repeatedly sends the control information on the second time-frequency resource of the second time-frequency resource set.
  • the terminal device can receive the control information repeatedly sent by the network device on the second time-frequency resource, then the terminal device can receive at least two copies of the same control information within one transmission period of the control information, thereby improving the terminal device’s reception Control the accuracy of information.
  • the preset rule may include that the second time-frequency resource set and the first time-frequency resource set are located on consecutive and different symbols in the same time slot, or the second time-frequency resource set and The first time-frequency resource set is X time slots apart, or the second time-frequency resource set and the first time-frequency resource set are Y milliseconds apart.
  • various possible implementation modes of the preset rules are specifically provided, which improves the realizability and operability of this solution.
  • the preset rule may also include the number of symbols occupied by the second time-frequency resource set in the time domain.
  • the number of symbols in the second time-frequency resource set in the time domain is further determined, combined with the position of the second time-frequency resource set, so that the terminal device can fully monitor all the time-frequency resources included in the second time-frequency resource set, Avoid monitoring omissions.
  • the preset rule may further include that the frequency domain resources occupied by the first time-frequency resource and the second time-frequency resource are the same.
  • the terminal device since the frequency domain resources occupied by the first time-frequency resource and the second time-frequency resource are the same, the terminal device determines the frequency domain resources occupied by the first time-frequency resource and the second time-frequency resource set in the time domain. After the above position, the position of the second time-frequency resource can be accurately located, so that the terminal device only needs to repeatedly monitor the control resource on the second time-frequency resource, reducing the load of the terminal device.
  • the present application provides a signal sending method.
  • the method may include: a network device determines M first signals for sending first information, the network device sends third indication information to the terminal device, and the third indication information is used for Indicates the time-frequency resource location of the reference signal corresponding to the first signal, where the network device carries the M second information on the M first signals and sends it to the terminal device, where the first signal is used to carry data
  • M is an integer greater than 1
  • the second information is information obtained by encoding the first information.
  • the method may further include: the network device sends fourth indication information to the terminal device, where the fourth indication information is used to indicate that each of the M first signals carries The redundancy version corresponding to the second information, where N is an integer greater than 1, and M is an integer multiple of N.
  • the third indication information may be included in the control information sent by the network device to the terminal device.
  • the fourth indication information may be included in the control information sent by the network device to the terminal device.
  • the present application provides a signal receiving method.
  • the method may include: a terminal device receives third indication information sent by a network device, where the third indication information is used to indicate corresponding to each of the M first signals
  • the terminal device receives the M second information sent by the network device through the M first signals.
  • the present application also provides a signal sending method.
  • the method may include: the terminal device determines M pieces of fourth information, where any one of the M pieces of fourth information is information obtained by encoding the third information , And carry the M fourth information on the M second signals and send it to the network device.
  • the terminal device receives the fifth indication information, and determines according to the fifth indication information that it corresponds to each of the M second signals The time-frequency resource location of the reference signal.
  • the method may further include: the terminal device sends sixth indication information to the network device, where the sixth indication information is used to indicate a redundancy version corresponding to the fourth information carried in the second signal .
  • the present application also provides a signal receiving method.
  • the method may include: the network device receives at least one second signal among the M second signals, and the network device sends fifth indication information to the terminal device. To indicate the time-frequency resource position of the reference signal corresponding to each of the M second signals.
  • the present application provides a communication device, the communication device may include a sending unit; the sending unit is used to send first indication information to a terminal device, the first indication information is used to indicate a first time-frequency resource set, and the sending unit, It is also used to send second indication information to the terminal device.
  • the second indication information is used to indicate the existence or nonexistence of the second time-frequency resource set.
  • the sending unit is also used to send the information on the first time-frequency resource in the first time-frequency resource set.
  • Sending control information to the terminal device and the sending unit is further configured to send the control information to the terminal device on the second time-frequency resource in the second time-frequency resource set when the second indication information indicates that the second time-frequency resource set exists ,
  • the multiple time-frequency resources included in the second time-frequency resource set include the second time-frequency resource, where the first time-frequency resource set and the second time-frequency resource set can belong to the same transmission of control information in the time domain Within the cycle.
  • the present application provides a communication device.
  • the communication device may include a receiving unit; the receiving unit is configured to receive first indication information sent by a network device, the first indication information is used to indicate a first time-frequency resource set, and the receiving unit , Is also used to receive second indication information sent by the network device, the second indication information is used to indicate the presence or absence of the second time-frequency resource set, and the receiving unit is also used to set the first time-frequency resource in the first time-frequency resource set
  • the control information sent by the network device is received on the resource, and the receiving unit is further configured to receive the network device on the second time-frequency resource of the second time-frequency resource set when the second indication information indicates that the second time-frequency resource set exists
  • the first time-frequency resource set and the second time-frequency resource set may belong to the same transmission period of the control information in the time domain.
  • the present application provides a communication device.
  • the communication device includes: at least one processor and at least one memory; at least one memory is used to store instructions; at least one processor is used to execute instructions in at least one memory, so that the communication device Perform the method of any one of the aforementioned first aspect or second aspect.
  • this application provides a computer-readable storage medium with instructions stored in the computer-readable storage medium, which when run on a computer, cause the computer to execute any one of the first or second aspects above Methods.
  • this application provides a computer program product containing instructions, which when run on a computer, causes the computer to execute the method of any one of the above-mentioned first aspect or second aspect.
  • the present application provides a communication device.
  • the communication device may include a sending unit; the sending unit is used to send first indication information to a terminal device, the first indication information is used to indicate a first time-frequency resource set, and the sending unit , Is also used to send control information to the terminal device on the first time-frequency resource in the first time-frequency resource set, and the sending unit is also used to send control information at the second time when it is determined that the preset condition for repeatedly sending control information is satisfied.
  • the second time-frequency resource in the frequency resource set repeatedly sends control information to the terminal device, where the first time-frequency resource set and the second time-frequency resource set can belong to the same transmission period of the control information in the time domain.
  • the present application provides a communication device.
  • the communication device may include a receiving unit, a determining unit, and a monitoring unit; the receiving unit may receive the first instruction information sent by the network device, and the determining unit may follow the instructions of the first instruction information After determining the location of the first time-frequency resource set, the monitoring unit monitors the control information on the first time-frequency resource set, so as to receive the control information sent by the network device on the first time-frequency resource in the first time-frequency resource set, and determine The unit may also determine the position of the second time-frequency resource set according to the first time-frequency resource set and preset rules, and the monitoring unit repeatedly monitors the control information on the second time-frequency resource set, and the network device is in the second time-frequency resource set. In the case that the control information is repeatedly sent on the second time-frequency resource of the resource set, the terminal device may receive the control information repeatedly sent by the network device on the second time-frequency resource of the second time-frequency resource set.
  • the present application provides a communication device.
  • the communication device includes: at least one processor and at least one memory; at least one memory is used to store instructions; at least one processor is used to execute instructions in at least one memory so that the communication device Perform the method of any one of the aforementioned third aspect or fourth aspect.
  • this application provides a computer-readable storage medium, which stores instructions in the computer-readable storage medium, which when run on a computer, causes the computer to execute any one of the third or fourth aspects above Methods.
  • the present application provides a computer program product containing instructions, which when run on a computer, causes the computer to execute the method of any one of the above-mentioned third aspect or the fourth aspect.
  • FIG. 1a is a schematic diagram of a network architecture of an application environment of a signal processing method provided by an embodiment of this application;
  • FIG. 1b is a schematic diagram of another network architecture of the application environment of the signal processing method provided by the embodiment of this application;
  • FIG. 2 is a schematic flowchart of a signal processing method provided by an embodiment of this application.
  • FIG. 3 is a schematic diagram of the positions of a first time-frequency resource set and a second time-frequency resource set provided by an embodiment of this application;
  • FIG. 4 is another schematic diagram of the positions of the first time-frequency resource set and the second time-frequency resource set provided by an embodiment of this application;
  • FIG. 5a is a schematic diagram of a division method of a first time-frequency resource and a second time-frequency resource provided by an embodiment of this application;
  • FIG. 5b is another schematic diagram of the division manner of the first time-frequency resource and the second time-frequency resource provided by an embodiment of the application;
  • FIG. 5c is another schematic diagram of the division method of the first time-frequency resource and the second time-frequency resource provided by an embodiment of this application;
  • FIG. 6 is a schematic flowchart of another signal processing method provided by an embodiment of the application.
  • FIG. 7 is a schematic flowchart of another signal processing method provided by an embodiment of this application.
  • FIG. 8 is a schematic flowchart of another signal processing method provided by an embodiment of the application.
  • FIG. 9 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 10 is a schematic diagram of another structure of a communication device provided by an embodiment of the application.
  • FIG. 11 is a schematic diagram of another structure of a communication device provided by an embodiment of this application.
  • FIG. 12 is a schematic diagram of still another structure of a communication device provided by an embodiment of this application.
  • FIG. 13 is a schematic diagram of another structure of a communication device provided by an embodiment of this application.
  • FIG. 14 is a schematic diagram of still another structure of a communication device provided by an embodiment of this application.
  • FIG. 15 is a schematic diagram of another structure of a communication device provided by an embodiment of this application.
  • the embodiments of the present application provide a method for transmitting a signal, a method for receiving a signal, and related equipment.
  • the network equipment may be on a first time-frequency resource in a first time-frequency resource set and a second time-frequency resource in a second time-frequency resource set.
  • the upper control information is repeatedly sent to the terminal device, so that the terminal device can receive at least two copies of the same control information within one transmission period of the control information, thereby improving the correct rate of the terminal device receiving the control information.
  • CDMA code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency-division multiple access
  • SC-FDMA single carrier frequency-division multiple access
  • the term "system” can be used interchangeably with "network”.
  • the CDMA system can implement wireless technologies such as universal terrestrial radio access (UTRA) and CDMA2000.
  • UTRA can include wideband CDMA (WCDMA) technology and other CDMA variants.
  • CDMA2000 can cover the interim standard (IS) 2000 (IS-2000), IS-95 and IS-856 standards.
  • the TDMA system can implement wireless technologies such as the global system for mobile communication (GSM).
  • GSM global system for mobile communication
  • OFDMA system can realize such as evolved universal wireless terrestrial access (evolved UTRA, E-UTRA), ultra mobile broadband (ultra mobile broadband, UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.10, Flash OFDMA And other wireless technologies.
  • UTRA and E-UTRA are UMTS and UMTS evolved versions.
  • 3GPP is a new version of UMTS using E-UTRA in long term evolution (LTE) and various versions based on LTE evolution.
  • LTE long term evolution
  • 5G fifth generation
  • NR New Radio
  • the communication system may also be applicable to future-oriented communication technologies, all of which are applicable to the technical solutions provided in the embodiments of the present application.
  • the system architecture and business scenarios described in the embodiments of this application are intended to illustrate the technical solutions of the embodiments of this application more clearly, and do not constitute a limitation on the technical solutions provided in the embodiments of this application.
  • Those of ordinary skill in the art will know that with the network With the evolution of architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems. It should be understood that, in the embodiments of the present application, only the application of the control information sending method to the 5G system is taken as an example for description.
  • Figures 1a and 1b respectively show two possible network architecture diagrams of the application environment of the signal processing method provided by the embodiments of the present application.
  • the communication system includes a network device 10 and a terminal device. 20. There is a communication connection between the network device 10 and the communication device 20. Although only one network device 10 and two terminal devices 20 are shown in FIG. 1a and FIG. 1b, it should be understood that this is only an example. The example does not limit the number of network devices 10 and communication devices 20.
  • terminal device device to device, D2D
  • D2D communication can be implemented in a 5G-NR system.
  • D2D is a technology for direct communication between terminal devices and terminal devices. The communication between the terminal equipment is located on the side link, and the transfer of the base station is no longer required.
  • the network device 10 may specifically behave as a base station. As shown in FIG. 1a, in a working mode of D2D communication, the base station allocates time-frequency resources in the resource pool to the terminal device 20, and the base station sends The terminal device sends control information; in another implementation manner, the network device 10 may also behave as a specific terminal device among multiple terminal devices 20. As shown in Figure 1b, in the multicast scenario of D2D communication, A specific terminal device allocates time-frequency resources in the resource pool to each D2D terminal device 20, and the specific terminal device sends control information to the terminal device 20.
  • the base station may include various forms of macro base stations, micro base stations, relay stations, access points, roadside units, etc.
  • the functions of the base station in the present application can also be implemented by built-in modules or units. Modules or units are built in macro base stations, micro base stations, relay stations, access points, and roadside units.
  • the names of devices with base station functions may be different.
  • LTE systems they are called evolved NodeBs (evolved NodeB for short: eNB or eNodeB).
  • eNB evolved NodeB
  • eNodeB evolved NodeB for short: eNB or eNodeB
  • NR systems In the third-generation 3G system, it is called a Node B (Node B) and so on.
  • Terminal equipment also known as user equipment (UE), mobile station (MS), mobile terminal (MT), terminal, etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • terminal devices are: mobile phones, tablet computers, notebook computers, handheld computers, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (augmented reality) , AR) equipment, wireless terminals in industrial control, wireless terminals in unmanned driving (self-driving), wireless terminals in remote medical surgery, and wireless terminals in smart grid (smart grid) , Wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc.
  • MID mobile internet devices
  • VR virtual reality
  • AR augmented reality
  • wireless terminals in industrial control wireless terminals in unmanned driving (self-driving), wireless terminals in remote medical surgery
  • smart grid smart grid
  • the network device in order to improve the accuracy of the terminal device receiving control information, not only sends control information to the terminal device on the first time-frequency resource in the first time-frequency resource set, but also on the second resource set.
  • the control information is repeatedly sent to the terminal device on the second time-frequency resource, so that the terminal device can receive two copies of the same control information in the same control information transmission period.
  • the network device may send the second indication information to the terminal device, and the second indication information indicates the second time-frequency resource.
  • the network device sends the second instruction information to the terminal device
  • FIG. 2 is a schematic diagram of an interaction process between a network device and a terminal device according to an embodiment of the present application.
  • the signal sending method provided in an embodiment of the present application may include the following steps:
  • a network device sends first indication information to a terminal device.
  • the first indication information sent by the network device to the terminal device may be included in a physical broadcast channel (physical broadcast channel, PBCH).
  • PBCH physical broadcast channel
  • the network device may periodically broadcast the PBCH.
  • the terminal device can blindly check the synchronization signal/broadcast channel block (SS/PBCH block, SSB). After receiving the SSB broadcast by the network device, it can Perform timing synchronization, and after obtaining the PBCH, obtain the first indication information therefrom.
  • SS/PBCH block synchronization signal/broadcast channel block
  • the first indication information is used to indicate the position of the first time-frequency resource set
  • the first time-frequency resource set may include multiple time-frequency resources
  • the first time-frequency resource among the multiple time-frequency resources is used for For network equipment to send control information to terminal equipment.
  • the symbol positions occupied by the first time-frequency resource and the first time-frequency resource set in the time domain may overlap.
  • the first time-frequency resource set can be the position of the time-frequency resource set occupied by the physical downlink control channel (PDCCH) of type 0, or the physical downlink control channel (PDCCH) of type 1 )
  • the position of the occupied time-frequency resource set, where the time-frequency resource set can be represented as a control resource set (Control Resource SET, CORESET) or other types of time-frequency resource units; the control information can be represented as a downlink Control information (downlink control information, DCI) can also be side link control information, etc.
  • a control resource set is defined in the 5G-NR system.
  • a control resource set includes several resource blocks in the frequency domain.
  • the time domain includes consecutive P symbols.
  • the current value of P is one of 1, 2 or 3. It should be understood that the foregoing examples of time-frequency resource sets and control information are only for the convenience of understanding this solution. Not limited.
  • the network device determines the indication type of the second indication information sent to the terminal device.
  • the network device may determine whether the second indication information sent to the terminal device is used to indicate that the second time-frequency resource set exists or that the second time-frequency resource does not exist according to several related factors, where: Related factors include, but are not limited to, the distance between the network device and the terminal device or the communication quality between the network device and the terminal device, etc.
  • the indication type of the second indication information includes the existence of the second time-frequency resource set and the non-existence of the second time-frequency resource.
  • the time-frequency resource correspondingly, the absence of the second time-frequency resource means that there is no second time-frequency resource for the network device to repeatedly send control information to the terminal device.
  • the network device can learn the location of the terminal device during the process of the terminal device accessing the network and in the subsequent process of information interaction with the terminal device, so that when the distance between the terminal device and the network device is When it is greater than or equal to the first preset threshold, the second indication information sent by the network device to the terminal device indicates that the second time-frequency resource set exists; when the distance between the terminal device and the network device is less than the first preset threshold, the network device The second indication information sent to the terminal device may indicate that the second time-frequency resource set does not exist.
  • the network device can learn the communication quality between the network device and the terminal device during the information exchange process with the terminal device, so that when the communication quality between the network device and the terminal device is lower than or equal to the first 2.
  • the threshold is preset
  • the network device sends second indication information to the terminal device.
  • the network device may send second indication information to the terminal device, where the second indication information is used to indicate the presence or absence of the second time-frequency resource set , So that the terminal device can receive the second indication information, and can perform corresponding operations according to the second indication information.
  • the second indication information indicates that the second time-frequency resource set exists, perform step 206 to step 208;
  • the indication information indicates that there is no second time-frequency resource set, and step 206 to step 208 are no longer performed.
  • Steps 206 to 208 describe in detail that the network device passes the second time-frequency resource of the second time-frequency resource set to the terminal device. The process of sending control information.
  • the second time-frequency resource set may include multiple time-frequency resources, and the second time-frequency resource included in the multiple time-frequency resources is used for the network device to repeatedly send control information to the terminal device, where the second time-frequency resource
  • the symbol positions occupied by the second time-frequency resource set in the time domain may overlap.
  • the existence of the second time-frequency resource set means that the network device repeatedly sends control information to the terminal device through the second time-frequency resource on the second time-frequency resource set.
  • the absence of the second time-frequency resource set means that the network device does not send control information to the terminal. The device repeatedly sends control information.
  • the network device may repeatedly send control information on the first time-frequency resource and the second time-frequency resource respectively.
  • FIG. 3 is a schematic diagram of the positions of the first time-frequency resource set and the second time-frequency resource set in the time domain.
  • the first time-frequency resource set and the second time-frequency resource set are The time domain can be located on consecutive and different symbols located in the same time slot, so that when the terminal device determines that the second time-frequency resource set exists according to the second indication information, the terminal device can be located on several consecutive symbols. At least two copies of the same control information are received, which not only improves the success rate of the terminal device in detecting the control information, but also saves the time for the terminal device to monitor the control information.
  • FIG. 4 is a schematic diagram of the positions of the first time-frequency resource set and the second time-frequency resource set in the time domain, the first time-frequency resource set and the second time-frequency resource set In the time domain, they can also be located in different time slots, which enriches the implementation scheme of this solution, so that the network device can flexibly determine the position of the second time-frequency resource set based on actual conditions, which enhances the flexibility of this solution.
  • the first time-frequency resource set and the second time-frequency resource set can occupy at least two symbols in the time domain.
  • the first time-frequency resource set and the second time-frequency resource set The number of symbols occupied in the time domain may be the same; referring to Figure 3, the number of symbols occupied by the first time-frequency resource set and the second time-frequency resource set in the time domain may also be different.
  • the symbols in the embodiment of the present application It may include, but is not limited to, any of the following: orthogonal frequency division multiplexing (OFDM) symbols, universal filtered multiple carrier (UFMC) symbols, generalized frequency division multiplexing, GFDM) symbols, etc.
  • OFDM orthogonal frequency division multiplexing
  • UMC universal filtered multiple carrier
  • GFDM generalized frequency division multiplexing
  • the number of symbols occupied by the first time-frequency resource set and the second time-frequency resource set in the time domain does not exceed three, because the number of symbols in the time domain of the time-frequency resource reserved for control information is three
  • the overhead of the time-frequency resource occupied by the entire control information can be kept low.
  • the first time-frequency resource set occupies one symbol in the time domain
  • the second time-frequency resource set occupies one or two symbols in the time domain
  • the number of symbols occupied by the second time-frequency resource set in the time domain is greater than The number of symbols occupied by the first time-frequency resource set in the time domain, so as to ensure that the network device can send at least one copy of complete control information through the second time-frequency resource set, thereby ensuring that the terminal device can receive two or even three copies of the same
  • the control information of the terminal device improves the success rate of the terminal equipment to detect the control information.
  • the second indication information may be used to indicate the existence or absence of a second time-frequency resource set for the network device to repeatedly send control information to the terminal device.
  • the second indication information may be selected by taking two Different values indicate the presence or absence of the second time-frequency resource set, one value is used to indicate the absence of the aforementioned second time-frequency resource set, and the other value is used to indicate the presence of the aforementioned second time-frequency resource set.
  • the two values of the second finger information are 0 and 1, when the second indication information is 0, it means that the aforementioned second time-frequency resource set does not exist, that is, the network device will not be in the second time-frequency resource set.
  • the control information is repeatedly sent to the terminal device on the second time-frequency resource in the resource set, the terminal device can only monitor the control information on the first time-frequency resource set, but not on the second time-frequency resource set;
  • the indication information is 1, it means that the aforementioned second time-frequency resource set exists, that is, the network device will repeatedly send control information to the terminal device on the second time-frequency resource in the second time-frequency resource set, and the terminal device can be in the first
  • the control information is monitored on both the time-frequency resource set and the second time-frequency resource set.
  • the second indication information may not only be used to indicate the presence or absence of the second time-frequency resource set, but also may be used to indicate the position of the second time-frequency resource set in the time domain.
  • the second indication information may indicate a variety of different meanings through different values. One value is used to indicate that the second time-frequency resource set does not exist, and the other value is used to indicate the second time-frequency resource set.
  • the first time-frequency resource set and the first time-frequency resource set are respectively located on consecutive and different symbols in the same time slot in the time domain, and the other value is used to indicate that the second time-frequency resource set and the first time-frequency resource set are respectively located in the time domain Different time slots.
  • the second indication information can indicate different meanings by taking values of 0, 1, and 2, respectively.
  • the second indication information takes a value of 0, it indicates that there is no second time-frequency resource. Set; when the value of the second indication information is 2, it indicates that the second time-frequency resource set and the first time-frequency resource set are located on consecutive and different symbols in the same time slot in the time domain; when the second indication information is At 3 o'clock, it indicates that the second time-frequency resource set and the first time-frequency resource set are respectively located in different time slots in the time domain.
  • the second indication information sent by the network device can also be used to indicate the location of the second time-frequency resource set, so that the terminal device can preliminarily determine the location of the second time-frequency resource set according to the second indication information, which reduces the amount of monitoring control information of the terminal device.
  • the range is conducive to reducing the load on terminal equipment.
  • the second indication information may be used not only to indicate the presence or absence of the second time-frequency resource set, but also to indicate the number of symbols occupied by the second time-frequency resource set in the time domain in a time period. Then the second indication information can indicate a variety of different meanings through different values. Specifically, one value is used to indicate that there is no second time-frequency resource set; the other value is used to indicate that there is a second time-frequency resource set.
  • the number of symbols occupied by the second time-frequency resource in the time domain is one; the other value is used to indicate that there is a second time-frequency resource set, and in a time period, The second time-frequency resource set occupies 2 symbols in the time domain; the other value is used to indicate that there is a second time-frequency resource set, and within a time period, the second time-frequency resource set is in the time domain
  • the number of symbols occupied is three and so on.
  • the second indication information can take values of 0, 1, 2 and 3 respectively, where when the second indication information takes a value of 0, it indicates that there is no second time-frequency resource set; 2.
  • the value of the indication information When the value of the indication information is 1, it indicates that there is a second time-frequency resource set and the second time-frequency resource set occupies 1 symbol in the time domain; when the value of the second indication information is 2, it indicates that there is a second time-frequency resource set Resource set and the second time-frequency resource set occupies 2 symbols in the time domain; when the second indication information value is 3, it indicates that there is a second time-frequency resource set and the second time-frequency resource set occupies three symbols in the time domain Symbols.
  • the second indication information sent by the network device may also be used to indicate the number of symbols in the second time-frequency resource set, so that the terminal device can determine the number of symbols in the second time-frequency resource set according to the second indication information, and when monitoring control information In the process, if the control information has been repeatedly monitored in L symbols, when the L symbols are equal to the number of symbols indicated by the second indication information, the terminal device does not need to monitor the control information on other time-frequency resources, which is beneficial to reduce the number of terminal devices Load.
  • the second control resource set does not exist 1
  • the second control resource set exists and occupies 1 symbol 2
  • the second control resource set exists and occupies 2 symbols 3
  • the second control resource set exists and occupies 3 symbols
  • the length of a time period includes, but is not limited to, one transmission cycle of control information, one time slot, multiple discontinuous time slots in one transmission cycle of control information, multiple consecutive time slots, one Subframes, multiple consecutive subframes, or multiple discontinuous subframes within a transmission period of control information, etc., are not specifically limited here.
  • the second time frequency indicated by the second indication information in the embodiment of the present application The number of symbols occupied by the resource set in the time domain refers to the number of symbols occupied by the second time-frequency resource set in the time domain in a period of time. To simplify the description, the second time-frequency resource set will be described later. When describing the number of symbols occupied in the time domain, it is not specifically pointed out.
  • the second indication information can indicate three different meanings through three different values. Specifically, one value is used to indicate that there is no second time-frequency resource set, and the other value is used to indicate that there is a second time-frequency resource set.
  • the second time-frequency resource set occupies 1 symbol in the time domain, and the other value is used to indicate that there is a second time-frequency resource set and the second time-frequency resource set occupies 2 symbols in the time domain, as For example, see Table 3 below.
  • the second indication information can indicate different meanings by taking values of 0, 1, and 2, respectively.
  • the value of the second indication information When the value of the second indication information is 0, it indicates that there is no second time-frequency resource set. ; When the value of the second indication information is 1, it indicates that there is a second time-frequency resource set and the second time-frequency resource set occupies 1 symbol in the time domain; when the value of the second indication information is 2, it indicates that there is a first symbol Two time-frequency resource sets, and the second time-frequency resource set occupies 2 symbols in the time domain.
  • the second indication information can indicate three different meanings through three different values. Specifically, one of the values is used to indicate There is no second time-frequency resource set, and another value is used to indicate that there is a second time-frequency resource set and that the second time-frequency resource set occupies 1 symbol in the time domain.
  • the second indication The information can indicate two different meanings by taking the values 0 and 1, respectively. When the second indication information takes the value 0, it indicates that there is no second time-frequency resource set; when the second indication information takes the value 1. , Indicating that there is a second time-frequency resource set and the second time-frequency resource set occupies 1 symbol in the time domain.
  • the second indication information may be used to indicate the presence or absence of the second time-frequency resource set, the position of the second time-frequency resource set in the time domain, and the symbols occupied by the second time-frequency resource in the time domain. Number. Then the second indication information can also indicate a variety of different meanings through different values. As an implementation, the second indication information can express four different meanings through four different values.
  • the second indication information can take the values 0, 1, 2 and 3 respectively, where, when the second indication information takes the value 0 , Indicating that there is no second time-frequency resource set; when the value of the second indication information is 1, it is used to indicate that the second control resource set and the first resource set are located in different time slots in the time domain; when the second indication information When the value is 2, it is used to indicate that the second control resource set and the first resource set are located on consecutive and different symbols in the same time slot
  • the second indication information sent by the network device not only indicates the position of the second time-frequency resource set, but also indicates the number of symbols occupied by the second time-frequency resource set, so that the terminal device can compare the second time-frequency resource set with the second indication information. Precise positioning reduces the range of terminal equipment monitoring control information, which is beneficial to reducing the load of terminal equipment.
  • the second indication information can express four different meanings through five different values. Specifically, one value is used to indicate that there is no second time-frequency resource set; the other value indicates The second control resource set and the first resource set are located in different time slots in the time domain, and occupy 1 symbol; the other value indicates that the second control resource set and the first resource set are located in different time slots in the time domain , And occupy 2 symbols; the other value indicates that the second control resource set and the first resource set are located on consecutive and different symbols in the same time slot in the time domain, and occupy 1 symbol; the other value indicates the first 2. The control resource set and the first resource set are located on consecutive and different symbols in the same time slot in the time domain, and occupy 2 symbols. As an example, refer to Table 6 below.
  • the second indication information can be set to 0, 1, 2, and 3, where, when the value of the second indication information is 0, it indicates that there is no second time-frequency resource set; when the value of the second indication information is 1, it is used to indicate that the second control resource set and the first A resource set is located in different time slots in the time domain and occupies 2 symbols; when the value of the second indication information is 2, it is used to indicate that the second control resource set and the first resource set are located at different times in the time domain In the slot, and occupy 1 symbol; when the second indication information value is 3, it is used to indicate that the second control resource set and the first resource set are located on consecutive and different symbols in the same time slot in the time domain, and Occupies 2 symbols; when the value of the second indication information is 4, it is used to indicate that the second control resource set and the first resource set are located on consecutive and different symbols in the same time slot in the time domain, and occupy 1 symbol .
  • the number of bits occupied by the second indication information is not more than two. Since there are 2 reserved bits in the PBCH, when the number of bits occupied by the second indication information is not more than two, The second indication information can be put into the two reserved bits in the PBCH, so there is no need to add new bits to the PBCH and avoid the PBCH from adding new overhead.
  • step 201 and step 203 can be performed at the same time; step 201 can also be performed first, then step 203; or step 203 can be performed first, then step 201 .
  • the network device sends control information to the terminal device on the first time-frequency resource in the first time-frequency resource set.
  • the network device may periodically send control information to the terminal device on the first time-frequency resource in the first time-frequency resource set.
  • the terminal device determines the location of the first time-frequency resource set according to the first indication information.
  • the terminal device monitors the control information in the first time-frequency resource set, so as to receive the control information sent by the network device on the first time-frequency resource of the first time-frequency resource set.
  • the terminal device after the terminal device obtains the first indication information, that is, the position of the first time-frequency resource set is obtained, since the first time-frequency resource set contains multiple time-frequency resources, the terminal device is in multiple time-frequency resources.
  • the control information is monitored at the position of each time-frequency resource in the frequency resources, so that the control information sent by the network device is received at the first time-frequency resource position.
  • step 203 can be executed first, and then step 204 to step 206; or step 204 to step 206 can be executed first, and then step 203 can be executed.
  • the network device When the second indication information indicates that the second time-frequency resource set exists, the network device repeatedly sends the control information to the terminal device on the second time-frequency resource in the second time-frequency resource set.
  • the network device may repeatedly send the control information to the terminal device on the second time-frequency resource of the second time-frequency resource set, and the network device The control information can be repeatedly sent to the terminal device in a periodic sending manner.
  • the network device repeatedly sends at least two copies of the same control information to the terminal device through the first time-frequency resource and the second time-frequency resource, respectively.
  • a control channel element (control channel element, is defined in the 5G-NR system).
  • CCE CCE
  • a CCE includes 6 resource element groups (REG).
  • REG resource element groups
  • one REG occupies 1 symbol in the time domain and 12 subcarriers in the frequency domain, and one control Information can be carried in Q CCEs.
  • the current value of Q is one of 1, 2, 4, 8, or 16.
  • both the first time-frequency resource and the second time-frequency resource can be represented in detail
  • the first time-frequency resource and the second time-frequency resource can also be described by using other time-frequency resource units.
  • only a 5G-NR system is taken as an example.
  • the specific size and description method of the first time-frequency resource and the second time-frequency resource can be flexibly determined in combination with actual conditions.
  • the frequency domain resources occupied by the first time-frequency resource and the second time-frequency resource are the same, so that the network device can repeatedly send control information in the same frequency domain, which is beneficial for the network device to complete the repeated transmission of control information. Conducive to the management of time-frequency resources by network equipment.
  • Figures 5a to 5c are schematic diagrams of three implementations of the first time-frequency resource and the second time-frequency resource provided by an embodiment of the application, respectively, and Figures 5a to 5c are each The time-frequency resource unit corresponding to the square where the number is located is a CCE, and the description will be given by taking 2 CCEs as an example that can carry a complete control information.
  • the first time-frequency resource and the second time-frequency resource occupy the same number of symbols in the time domain.
  • the first time-frequency resource set occupies 1 symbol in the time domain
  • the second time-frequency resource set occupies 2 symbols in the time domain
  • the first time-frequency resource occupies 1 symbol in the time domain
  • the second time-frequency resource also occupies 1 symbol in the time domain.
  • the resource set contains two second time-frequency resources.
  • the two parts numbered 1 in the first time-frequency resource are all CCE1
  • the size of the time-frequency resource occupied is one CCE
  • two of the first time-frequency resources are numbered 2.
  • the part of is CCE2, the size of the occupied time-frequency resource is one CCE, the two parts numbered 3 in the first time-frequency resource are both CCE3, and the size of the occupied time-frequency resource is one CCE; the second time-frequency resource
  • the first symbol (that is, the first second time-frequency resource) and the second symbol (that is, the second second time-frequency resource) in the set are both in the same manner as the CCE division of the first time-frequency resource.
  • the network device may respectively send two different parts of the control information on the two CCE1 of the first time-frequency resource, and also send two different parts of the control information on the two CCE1 of the second time-frequency resource in the first symbol.
  • Two different parts of the control information are also sent on the two CCE1 in the second time-frequency resource in the second symbol, that is, the second time-frequency resource set includes two second time-frequency resources , And each second time-frequency resource only occupies 1 symbol, and the method of sending the first control information on the 3 symbols is exactly the same, so that the network device can send 3 copies of the same control information to the terminal device, so that the terminal device can Receive 3 copies of the same control information to improve the accuracy of the control information received by the terminal device.
  • the number of symbols occupied by the first time-frequency resource and the second time-frequency resource in the time domain is not equal, and the division method in the frequency domain is the same.
  • the first time-frequency resource occupies 1 symbol in the time domain
  • the second time-frequency resource is in the time domain
  • the upper part occupies 2 symbols
  • the two parts numbered 1 in the first time-frequency resource are CCE1
  • the size of the time-frequency resource occupied is one CCE
  • the two parts numbered 2 in the first time-frequency resource are both CCE2
  • the size of the occupied time-frequency resource is one CCE
  • the two parts numbered 3 in the first time-frequency resource are both CCE3
  • the size of the occupied time-frequency resource is one CCE
  • the second time-frequency resource is occupied in the time domain
  • the two symbols of can be regarded as a whole, that is,
  • the network device may send two different parts of the control information on the two CCE1 of the first time-frequency resource, and repeatedly send the complete control information in the part numbered 1-1 of the second time-frequency resource, and The part numbered 1-2 of the second time-frequency resource repeatedly sends complete control information again, that is, the first time-frequency resource and the second time-frequency resource are divided in the same way in the frequency domain, but the second time-frequency resource will The two symbols occupied in the time domain are regarded as a whole, so that the network device can send three copies of the same control information to the terminal device.
  • the number of symbols occupied by the first time-frequency resource and the second time-frequency resource in the time domain is not equal, and the division method in the frequency domain is also different.
  • the first time-frequency resource occupies 1 symbol in the time domain
  • the second time-frequency resource is Two symbols are occupied in the time domain.
  • the two parts numbered 1 in the first time-frequency resource are both CCE1, and the size of the time-frequency resource occupied is one CCE.
  • the two parts numbered 2 in the first time-frequency resource are both Is CCE2, the size of the occupied time-frequency resource is one CCE, the two parts numbered 3 in the first time-frequency resource are both CCE3, and the size of the occupied time-frequency resource is one CCE; the second time-frequency resource is in the time domain
  • the two symbols occupied by the above can also be regarded as a whole, but in the implementation provided in FIG. 5c, the division of the second time-frequency resource in the frequency domain is also different from that of the first time-frequency resource, as shown in FIG.
  • the two parts numbered 1-1 in the second time-frequency resource are both CCE5, the size of the time-frequency resource occupied is one CCE, and the two parts numbered 1-2 are both CC6, and the part numbered 1-1
  • the division method is the same.
  • the division method of the part numbered 2 and 3 in the second time-frequency resource is the same as the part numbered 1-1.
  • the network device can send separately on the two CCE1 of the first time-frequency resource
  • the two different parts of the control information are repeatedly sent on the two CCE5 of the second time-frequency resource, and the two different parts of the control information are repeatedly sent on the two CCE6 of the second time-frequency resource.
  • the second time-frequency resource treats the two symbols occupied in the time domain as a whole, and the width of each time-frequency resource unit of the second time-frequency resource in the frequency domain is the first time-frequency resource
  • Each time-frequency resource unit of the resource is half of the width in the frequency domain, so that the network device sends three copies of the same control information to the terminal device.
  • a complete control information can also be carried in 4, 6, 8, 16, or other numbers of CCE types. It should be understood that the above examples are only for the convenience of understanding the first time in this solution.
  • the specific CCEs on which each control information is transmitted can be flexibly determined based on the actual situation. Not limited.
  • the above provides three different ways of dividing the first time-frequency resource and the second time-frequency resource, and three different implementation ways for the network device to send control information to the terminal device through the first time-frequency resource and the second time-frequency resource Therefore, the network device can flexibly determine the method of sending control information according to the actual situation, which improves the feasibility of the solution.
  • Step 204 may be executed first, and then step 207 may be executed, or step 204 and step 207 may be executed simultaneously.
  • the terminal device determines the second time-frequency resource set according to the second indication information. The location of the resource set.
  • the terminal device may learn that it is used for the network device after receiving the second indication information sent by the network device in step 203
  • the presence or absence of the second time-frequency resource that repeatedly sends the control information to the terminal device may also determine the position of the second time-frequency resource set.
  • the second indication information indicates that the second time-frequency resource set and the first time-frequency resource set are respectively located in consecutive and different symbols in the same time slot in the time domain, and the terminal device according to the second The indication information determines that the second time-frequency resource set and the first time-frequency resource set are respectively located on consecutive and different symbols in the same time slot in the time domain.
  • the second indication information indicates that the second time-frequency resource set and the first time-frequency resource set are located in different time slots in the time domain, and the terminal device determines the second time-frequency resource set according to the second indication information.
  • the resource set and the first time-frequency resource set are respectively located in different time slots in the time domain.
  • step 208 is an optional step. If the second indication information indicates the location of the second time-frequency resource set, step 208 exists; if the second indication information does not indicate the location of the second time-frequency resource set, it can be executed Step 209 is directly executed after step 207 or step 203 is completed.
  • the terminal device repeatedly monitors the control information to receive the control information repeatedly sent by the network device on the second time-frequency resource in the second time-frequency resource set.
  • the terminal device may continue to monitor the control information to perform The control information repeatedly sent by the network device is received on the second time-frequency resource in the frequency resource set.
  • the terminal The device can continuously monitor the control information in the time slot where the first time-frequency resource set is located to hear the control information repeatedly sent by the network device, and the terminal device learns the second time-frequency resource set and the first time-frequency resource set according to the second instruction information.
  • the terminal device only needs to continuously monitor the control information in one time slot to receive at least two duplicate control information, thereby reducing The workload of the terminal equipment.
  • the terminal device may continue To monitor control information, you can also stop monitoring after monitoring the control information on the first time-frequency resource in the first time-frequency resource set, and then start monitoring the control information until the next time slot starts, until the second time-frequency resource The control information repeatedly sent by the network device is received.
  • step 207 to step 209 are optional steps. If the second indication information indicates that the second time-frequency resource does not exist, step 207 to step 209 are not performed. If the resource exists, step 207 to step 209 are executed.
  • the network device sends the first instruction information to the terminal device, so that the terminal device can determine the first time-frequency resource set according to the first instruction information, and obtain the first time-frequency resource from the first time-frequency resource set
  • the network device also sends second indication information to the terminal device, and the terminal device determines whether the second time-frequency resource set exists or not according to the second indication information.
  • the terminal device may If the control information repeatedly sent by the network device is received on the second time-frequency resource of the second time-frequency resource set, the terminal device can receive at least two copies of the same control information within one transmission period of the control information, thereby improving the terminal device’s reception The correct rate of control information; in addition, this solution provides a specific implementation method for repeatedly sending control information, which improves the feasibility of this solution.
  • the terminal device determines the second time-frequency resource set according to preset rules
  • FIG. 6 is a schematic diagram of another interaction process between a network device and a terminal device provided in an embodiment of this application.
  • the signal sending method provided in an embodiment of this application may include:
  • the network device sends first indication information to the terminal device.
  • step 601 is similar to step 201 in the embodiment shown in FIG. 2 and will not be repeated here.
  • the network device sends control information to the terminal device on the first time-frequency resource in the first time-frequency resource set.
  • the terminal device determines the location of the first time-frequency resource set according to the first indication information.
  • the terminal device monitors the control information in the first time-frequency resource set, so as to receive the control information sent by the network device on the first time-frequency resource of the first time-frequency resource set.
  • steps 602 to 604 are similar to steps 203 to 206 in the embodiment shown in FIG. 2, and details are not described herein again.
  • the terminal device determines the location of the second time-frequency resource set according to the location of the first time-frequency resource set and the preset rule.
  • the preset rule may be that the second time-frequency resource set and the first time-frequency resource set are located on consecutive and different symbols in the same time slot; or as shown in FIG. 3, the second time-frequency resource The distance between the set and the first time-frequency resource set is X time slots; or the distance between the second time-frequency resource set and the first time-frequency resource set is Y milliseconds, so that the terminal device determines the first time-frequency resource set according to the first indication information.
  • the position of the second time-frequency resource can be determined in combination with preset rules, where X and Y are both positive numbers, and when the control information is DCI, Y is less than 20, because in the 5G-NR system
  • the transmission period of the type 0 physical downlink control channel indicated by the PBCH is 20 milliseconds, that is, the transmission period of the DCI included in the type 0 physical downlink control channel is also 20 milliseconds, so that when the network device passes the second time-frequency resource
  • the terminal device can receive at least two copies of the same control information in total, thereby improving the success rate of the terminal device in detecting control information; in addition, specific preset rules are provided
  • the various possible implementation methods improve the feasibility and operability of this solution.
  • the preset rule may also include the number of symbols occupied by the second time-frequency resource set in the time domain, and the number of symbols occupied by the first time-frequency resource set and the second time-frequency resource set in the time domain does not exceed
  • the preset rule may also be that the second time-frequency resource set occupies 1 symbol in the time domain, or the preset rule may also be that the second time-frequency resource set occupies 2 symbols in the time domain Symbols, etc., are not specifically limited here.
  • the preset rule may also include that the frequency domain resources occupied by the first time-frequency resource and the second time-frequency resource are the same.
  • the preset rules stored on the terminal device may be those configured on the terminal device when the terminal device leaves the factory, or it may be sent to the terminal device in advance by a network device by broadcasting, or may be other methods, etc. There are no restrictions.
  • the network device judges whether the preset condition for repeatedly sending control information is satisfied, and if the judgment result is yes, go to step 607; if the judgment result is no, go to step 608.
  • the network device may determine whether to repeatedly send control information to the terminal device on the second time-frequency resource of the second time-frequency resource set in combination with several related factors, where the related factors include but are not limited to the network device and the terminal device The distance between the network equipment and the communication quality between the terminal equipment, etc.
  • the network device can learn the location of the terminal device during the process of the terminal device accessing the network and in the subsequent process of information interaction with the terminal device, so that when the distance between the terminal device and the network device is When it is greater than or equal to the first preset threshold, the network device repeatedly sends control information to the terminal device on the second time-frequency resource; when the distance between the terminal device and the network device is less than the first preset threshold, the network device is not in the second The control information is repeatedly sent to the terminal device on the time-frequency resource.
  • the network device can learn the communication quality between the network device and the terminal device during the information exchange process with the terminal device, so that when the communication quality between the network device and the terminal device is lower than or equal to the first 2.
  • the network device repeatedly sends control information to the terminal device on the second time-frequency resource; when the communication quality between the network device and the terminal device is higher than the second preset threshold value, the network device is not in the second The control information is repeatedly sent to the terminal device on the time-frequency resource. It should be understood that the above examples are only to prove the feasibility of this solution, and the network device can also determine whether to repeatedly send control information to the terminal device at the second time-frequency resource position in combination with other factors, which will not be repeated here.
  • the network device repeatedly sends the control information to the terminal device on the second time-frequency resource of the second time-frequency resource set.
  • the terminal device repeatedly monitors the control information on the second time-frequency resource set.
  • the terminal device monitors and controls on multiple time-frequency resources included in the second time-frequency resource set. information. Specifically, when the network device repeatedly sends control information on the second time-frequency resource of the second time-frequency resource set, after determining the position of the second time-frequency resource set, the terminal device may use the second time-frequency resource set The control information is repeatedly monitored on the upper, thereby receiving the control information repeatedly sent by the network device on the second time-frequency resource of the second time-frequency resource set; and repeatedly sent on the second time-frequency resource of the second time-frequency resource set by the network device In the case of control information, the terminal device fails to receive it.
  • the terminal device determines the position of the first time-frequency resource in the frequency domain and the second time-frequency resource. After the position of the time-frequency resource set in the time domain, the position of the second time-frequency resource can be determined, so that the terminal device can repeatedly monitor the control information on the second time-frequency resource of the second time-frequency resource set without having to The control information is monitored on all the time-frequency resources included in the second time-frequency resource set, thereby reducing the load of the terminal device.
  • the network device sends the first instruction information to the terminal device, so that the terminal device can determine the first time-frequency resource set according to the first instruction information, and obtain the first time-frequency resource from the first time-frequency resource set Regarding the control information, the network device can also repeatedly send the control information to the terminal device on the second time-frequency resource in the second time-frequency resource set under the condition that the preset repeated transmission control information is satisfied, so that the terminal device can be
  • the terminal device can receive at least two copies of the same control information within one transmission period of the control information, thereby improving the terminal device to receive control information
  • the network device can determine according to relevant factors that the control information is repeatedly sent to the terminal device only when the preset condition for repeatedly sending the control information is met, thereby avoiding the waste of communication resources.
  • the signal sending method provided in the embodiment of the application may include:
  • the network device determines M first signals used to carry first information.
  • the first information may be any data sent by the network device to the terminal device.
  • the first information is raw data that has not been encoded.
  • the network device may perform redundant encoding on the first information.
  • One information is encoded, but other types of encoding methods can also be adopted. The specific encoding method used should be flexibly determined in light of actual conditions.
  • the first signal may also be referred to as the first data signal, which refers to a signal used to carry data.
  • M is an integer greater than 1, the size of the time-frequency resources occupied by each first signal in the M first signals may be the same, and the frequency domain resources occupied by each first signal in the M first signals may also be the same, However, the time domain resources occupied by any two of the M first signals do not overlap.
  • the M first signals can occupy consecutive M time domain resources or discontinuous M time domain resources.
  • each of the M time domain resources includes but is not limited to one symbol, multiple symbols, one time slot, multiple time slots, one subframe or multiple subframes, etc.
  • M The size of the frequency domain resource occupied by each first signal in the first signal includes but is not limited to one subcarrier or multiple subcarriers, etc.
  • the size of the time domain resource and the size of the frequency domain resource occupied by each first signal can both be It can be set flexibly according to the actual situation, and it is not limited here.
  • the network device sends third indication information to the terminal device, where the third indication information indicates the time-frequency resource location of the reference signal corresponding to the first signal.
  • the aforementioned reference signal is a signal that is known by both the network device and the terminal device and is used to assist the terminal device in detecting the first signal.
  • a reference signal corresponding to the first signal needs to be acquired, and then the first signal is detected.
  • the third indication information is used to indicate the time-frequency resource location of the reference signal corresponding to the first signal.
  • the third indication information may indicate the port number of the reference signal corresponding to the first signal, or may indicate the reference signal corresponding to the first signal. The number of the time-frequency resource of the corresponding reference signal.
  • the reference signal in the embodiment of the present application may be specifically represented as a demodulation reference signal (DMRS), or may be represented as another type of reference signal, which is not specifically limited here.
  • DMRS demodulation reference signal
  • the third indication information may indicate different states by using different values.
  • the third indication information indicates the port number of the reference signal, as a state
  • the third indication information indicates the corresponding M first signals
  • the port numbers of the M reference signals are all the same.
  • the network device can use port polling to perform M sending operations of the reference signal, and the third indication information indicates that the network device uses port wheel
  • the query mode executes M transmission operations of the M reference signals corresponding to the M first signals, that is, the port numbers used in any two adjacent reference signal transmission operations in the M reference signal transmission operations are both Not the same.
  • the third indication information may indicate that the numbers of the sending ports of the 2i-1th reference signal among the M reference signals are the same, and the 2ith reference signal The number of the sending port of the signal is the same, and the number of the sending port of the 2i-1th reference signal is different from the number of the sending port of the 2i-th reference signal, where i is a positive integer greater than or equal to 1 and less than or equal to M/2 .
  • the reference signal is DMRS
  • the value of M is 8, and there are ports 0 and 2 on the network device for sending DMRS, and the ports used by the network device to perform 8 DMRS sending operations are port 0, port 2, Port 0, Port 2, Port 0, Port 2, Port 0, and Port 2.
  • the third indication information indicates that the numbers of the sending ports of the 41-3th reference signal among the M reference signals are the same, and the number of the 41-2th reference signal is the same.
  • the numbers of the transmitting ports are the same, the numbers of the transmitting ports of the 41-1th reference signal are the same, the numbers of the transmitting ports of the 41st reference signal are the same, and the 41-3th reference signal, the 41-2th reference signal, and the fourth reference signal are the same.
  • the numbers of the transmission ports of the 41-1 reference signal and the 41-th reference signal are different from each other, where l is a positive integer greater than or equal to 1 and less than or equal to M/4.
  • the reference signal is DMRS
  • the value of M is 8, and there are ports 0, 2, 4, and 6 on the network device for sending DMRS.
  • the ports used by the network device to perform 8 DMRS sending operations are respectively Port 0, Port 2, Port 4, Port 6, Port 0, Port 2, Port 4, and Port 6.
  • the third indication information indicates the number of the time-frequency resource of the reference signal, as a state, the third indication information indicates that the numbers of the time-frequency resources used to transmit the M reference signals corresponding to the M first signals are all the same. .
  • the network device can use time-frequency resource polling to perform M sending operations of the reference signal, and the third indication information indicates the network
  • the device uses time-frequency resource polling to perform M sending operations of M reference signals corresponding to the M first signals, that is, any two adjacent reference signal sending operations in the M reference signal sending operations
  • the numbers of the time-frequency resources used are not the same.
  • the third indication information may indicate that the number of the time-frequency resources used to send the 2m-1th reference signal among the M reference signals is the same, and is used for sending the second reference signal.
  • the numbers of the time-frequency resources of the 2m reference signals are the same, and the numbers of the time-frequency resources used to transmit the 2m-1th reference signal are different from the numbers of the time-frequency resources used to transmit the 2m-th reference signal, where m is A positive integer greater than or equal to 1 and less than or equal to M/2.
  • the reference signal is DMRS
  • the value of M is 8
  • the time-frequency resources used are time-frequency resource 0, time-frequency resource 2, time-frequency resource 0, time-frequency resource 2, time-frequency resource 0, time-frequency resource 2, time-frequency resource 0, and time-frequency resource 2 respectively.
  • the third indication information may indicate that the number of the time-frequency resources used for sending the 4n-3th reference signal among the M reference signals is the same, and is used for sending the 4n-2th reference signal.
  • the numbers of the time-frequency resources of the two reference signals are the same, the numbers of the time-frequency resources used to transmit the 4n-1th reference signal are the same, and the numbers of the time-frequency resources used to transmit the 4nth reference signal are the same, and the number of the time-frequency resources used to transmit the
  • the numbers of time-frequency resources of 4n-3 reference signals, 4n-2th reference signals, 4n-1th reference signals, and 4nth reference signals are different from each other, where n is greater than or equal to 1 and less than or equal to M/ Positive integer of 4.
  • the reference signal is DMRS
  • the value of M is 8, and there are four groups of time-frequency resources numbered time-frequency resource 0, time-frequency resource 2, time-frequency resource 4, and time-frequency resource 6 to send on the network device.
  • DMRS the time-frequency resources used by the network equipment to perform 8 DMRS transmission operations are time-frequency resource 0, time-frequency resource 2, time-frequency resource 4, time-frequency resource 6, time-frequency resource 0, time-frequency resource 2, time-frequency resource Resource 4 and time-frequency resource 6.
  • the function of the third indication information is to indicate the positions of the time-frequency resources of the M reference signals corresponding to the M first signals.
  • the above examples are only for the convenience of understanding this solution.
  • the specific content of the third instruction information is not limited here.
  • the third indication information may be included in the control information in the embodiments described in FIG. 2 to FIG. 6, and sent by the network device to the terminal device.
  • the network device may send the third instruction information to the terminal device through steps 201 to 209 in the embodiment shown in FIG. 2; as another implementation manner, the network device may also use the method shown in FIG. 6 Steps 601 to 608 in the illustrated embodiment send the third instruction information to the terminal device; as another implementation manner, the network device may also send the third instruction information to the terminal device through step 201, step 204 to step 206 in the embodiment shown in FIG. 2
  • the third indication information since the foregoing steps have been described in detail in the embodiment shown in FIG. 2 and the embodiment shown in FIG. 6, they will not be repeated here.
  • the network device determines M pieces of second information, where any one of the M pieces of second information is information obtained by encoding the first information.
  • the second information is data encoded by the first information, that is, the second information includes the first information.
  • the second information is information obtained by performing redundant coding on the first information.
  • the network device may perform M redundant encodings on the first information according to N redundant versions (RV) to obtain M second information, where two adjacent second information may be used
  • RV redundant versions
  • the same redundancy version can also use different redundancy versions.
  • the second information obtained after the redundancy encoding of the first information can be different, where N is an integer greater than 1 and less than M , M is an integer multiple of N.
  • the signal sending method provided in the embodiment of the present application may further include: the network device sends fourth indication information to the terminal device, where the fourth indication information is used to indicate a redundancy version corresponding to the second information carried in the first signal .
  • the fourth indication information may also use different values to indicate the repetition mode of the N redundancy versions during the M second information sending operations.
  • a redundancy version repetition method when the network device performs two adjacent second information sending operations, at least the same redundancy version exists.
  • the fourth indication information indicates the first one among the M second information.
  • the redundancy versions of the M/N second information are the same, the redundancy versions of the M/N+1 to 2M/N second information are the same, and the redundancy versions of the 2M/N+1 to 3M/N second information are the same.
  • the remaining versions are the same, the redundant versions of the 3M/N+1 to M second information are the same, and the 1 to M/N second information, the M/N+1 to 2M/N second information, the The redundancy versions of the 2M/N+1 to 3M/N second information and the 3M/N+1 to M second information are different from each other.
  • the value of M is 12
  • the value of N is 4, and the value order of the N redundancy versions is 0, 2, 1, and 3 respectively
  • the value of the redundancy version can be 0, 0 sequentially , 0, 2, 2, 2, 1, 1, 1, 1, 3, 3, and 3.
  • the redundancy version when the network device performs any two adjacent second information sending operations is different.
  • the redundancy version can have two values.
  • the fourth indication information indicates that in the M pieces of second information, the redundancy version of the 2p-1 second information is the same, the redundancy version of the 2p second information is the same, and the 2p-1 second information is the same as the 2p.
  • the redundant versions of the second information are different, where p is a positive integer greater than or equal to 1 and less than or equal to M/2, as an example, for example, the value of M is 12, the value of N is 2, and there are 2 redundant versions
  • the value sequence of is 0, 2 and the value of the redundant version can be 0, 2, 0, 2, 0, 2, 0, and 2 in sequence.
  • the redundancy version may have four values
  • the fourth indication information indicates that the 4q-3th second information in the M second information has the same redundancy version
  • the 4q-2th second information The redundancy version of the information is the same, the redundancy version of the 4q-1 second message is the same, the redundancy version of the 4q second message is the same, and the 4q-3 second message, the 4q-2 second message
  • the redundant versions of the information, the 4q-1th second information and the 4qth second information are different from each other, where q is a positive integer greater than or equal to 1 and less than or equal to M/4, as an example, such as the value of M
  • the value of N is 12, and the value of N is 4, and the values of the four redundancy versions are 0, 2, 1, and 3 respectively, and the values of the redundancy version can be 0, 2, 1, 3, 0, 2 in sequence , 1, 3, 0, 2, 1, and 3.
  • At least the same redundancy version exists when the network device performs two adjacent reference signal sending operations.
  • the value of M is 12, the value of N is 4, and there are 4 types of redundancy.
  • the values of the remaining versions are 0, 2, 1, and 3 respectively, and the values of the redundant version can be 0, 0, 0, 2, 2, 2, 1, 1, 1, 1, 3, 3, and 3 in order.
  • the fourth indication information may be included in the control information in the embodiments described in FIG. 2 to FIG. 6, and sent by the network device to the terminal device.
  • the network device may send the third instruction information to the terminal device through steps 201 to 209 in the embodiment shown in FIG. 2; as another implementation manner, the network device may also use the method shown in FIG. 6 Steps 601 to 608 in the illustrated embodiment send the third instruction information to the terminal device; as another implementation manner, the network device may also send the third instruction information to the terminal device through step 201, step 204 to step 206 in the embodiment shown in FIG. 2
  • the third indication information since the foregoing steps have been described in detail in the embodiment shown in FIG. 2 and the embodiment shown in FIG. 6, they will not be repeated here.
  • step 702 can be performed first, and then step 703; step 703 can also be performed first, then step 702; and step 702 and step 703 can also be performed simultaneously. .
  • the network device carries the M second information respectively on the M first signals and sends it to the terminal device.
  • the network device after the network device determines the M first signals used to perform the current data transmission operation, it can determine the M second information to be sent according to the N redundancy versions and the first information, and The M second information is respectively carried on the M first signals and sent to the terminal device.
  • the network device may sort the M first signals according to the positions of the M first signals in the time domain, thereby sequentially using each of the M first signals to send the second information to the terminal device, It is also possible to carry the M second information separately on the M first signals and send them to the terminal device in other ways, which will not be repeated here.
  • the terminal device receives the third indication information, and determines, according to the third indication information, a time-frequency resource location of a reference signal corresponding to each of the M first signals.
  • the terminal device may determine the time-frequency resource position of the reference signal corresponding to each of the M first signals according to the third indication information, and then after receiving the first signal, it may combine the third The indication information determines the time-frequency resource position for sending the reference signal, so that the terminal device can monitor the reference signal at the time-frequency resource position determined according to the third indication information, which improves the success rate of receiving the reference signal, thereby improving the channel estimation of the terminal device Accuracy, improve the reliability of transmission.
  • step 702 is an optional step. If step 702 does not exist, then step 705 does not exist. After step 701 is executed, step 703 is executed, and after step 704 is executed, step 706 is executed.
  • the terminal device receives at least one first signal among the M first signals to obtain first information.
  • the terminal device may receive at least one first signal among the M first signals, and after obtaining the second information carried on the one first signal, decode the second information to obtain the first information .
  • the terminal device receives the fourth indication information from the network device, and determines the redundancy version corresponding to each second information in the M pieces of second information according to the fourth indication information.
  • the terminal device may determine the redundancy version corresponding to each of the received M pieces of second information according to the fourth indication information, and the terminal device may, after receiving the second information each time, The second information is decoded according to the redundancy version corresponding to the received second information to obtain the first information. Further, the terminal device may perform joint decoding according to the M second information, so as to increase the probability of successfully acquiring the first information and improve the reliability of transmission.
  • step 705 and step 706, and step 705 may be performed first, and then step 706; or step 706 may be performed first, and then step 705 may be performed.
  • FIG. 8 another schematic diagram of the interaction process between the network device and the terminal device provided in this embodiment of the application is also shown in the signal sending method provided in the embodiment of the application.
  • Can include:
  • the terminal device determines M pieces of fourth information, where any one of the M pieces of fourth information is information obtained by encoding the third information.
  • the third information may be any data sent by the terminal device to the network device.
  • the third information is original data that has not been encoded.
  • the terminal device may perform redundant encoding on the first data.
  • the three information is encoded, but other types of encoding methods can also be adopted, which are not specifically limited here.
  • the terminal device may perform M redundant encodings on the third information according to N redundant versions (RV) to obtain M fourth information.
  • RV redundant versions
  • the same redundancy version or different redundancy versions can be used between two adjacent fourth information.
  • the second information is obtained after the first information is redundantly encoded. It can be different, where N is an integer greater than 1 and less than M, and M is an integer multiple of N.
  • the terminal device carries the M pieces of fourth information on the M pieces of second signals respectively and sends them to the network device.
  • step 802 is similar to step 704 in the embodiment described in FIG. 7, except that the first signal in step 704 carries data sent by the network device to the terminal device, and the second signal in step 802 carries data. It is the data sent by the terminal device to the network device, so I won't repeat it here.
  • the signal sending method provided in the embodiment of the present application may further include: the terminal device sends sixth indication information to the network device, where the sixth indication information is used to indicate a redundancy version corresponding to the fourth information carried in the second signal .
  • the specific representation form of the fifth indication information may refer to the description of the fourth indication information in step 703 in the embodiment described in FIG. 7, and details are not described herein again.
  • the network device receives at least one second signal among the M second signals.
  • step 803 is similar to step 706 in the embodiment described in FIG. 7, and will not be repeated here.
  • the network device sends fifth indication information to the terminal device, where the fifth indication information is used to indicate a time-frequency resource location of a reference signal corresponding to each of the M second signals.
  • the terminal device receives the fifth indication information, and determines, according to the fifth indication information, a time-frequency resource location of a reference signal corresponding to each of the M second signals.
  • step 804 and step 805 are respectively similar to step 702 and step 705 in the embodiment described in FIG. 7, except that the third indication information in step 702 indicates that each first signal corresponds to The position of the time-frequency resource of the reference signal.
  • the fifth indication information in step 801 indicates the position of the time-frequency resource of the reference signal corresponding to each second signal, which will not be repeated here.
  • steps 801 to 803 can be performed first, and then steps 804 to 805; or steps 804 to 805 can be performed first, and then step 801 is performed. To 803.
  • FIG. 9 is a schematic structural diagram of a network device provided by an embodiment of the application.
  • the communication device 900 includes a sending unit 901:
  • the sending unit 901 is configured to send first indication information to a terminal device, where the first indication information is used to indicate a first time-frequency resource set;
  • the sending unit 901 is further configured to send second indication information to the terminal device, where the second indication information is used to indicate the presence or absence of the second time-frequency resource set;
  • the sending unit 901 is further configured to send control information to the terminal device on the first time-frequency resource in the first time-frequency resource set;
  • the sending unit 901 is further configured to send control information to the terminal device on the second time-frequency resource in the second time-frequency resource set when the second indication information indicates that the second time-frequency resource set exists.
  • the multiple time-frequency resources included in the set include a second time-frequency resource, where the first time-frequency resource set and the second time-frequency resource set may belong to the same transmission period of the control information in the time domain.
  • the sending unit 901 sends the first indication information to the terminal device, so that the terminal device can determine the first time-frequency resource set according to the first indication information, and set it on the first time-frequency resource in the first time-frequency resource set After obtaining the control information, the sending unit 901 also sends second instruction information to the terminal device. The terminal device determines whether the second time-frequency resource set exists or not according to the second instruction information.
  • the terminal device If the second time-frequency resource set exists, the terminal device The control information repeatedly sent by the network device can be received on the second time-frequency resource of the second time-frequency resource set, and the terminal device can receive at least two copies of the same control information within one transmission period of the control information, thereby improving the terminal The correct rate of the device receiving control information; in addition, this solution provides a specific implementation method for repeatedly sending control information, which improves the feasibility of this solution.
  • the communication device 900 may further include a determining unit 902, and the determining unit 902 is configured to:
  • the indication type of the second indication information sent to the terminal device is determined according to related factors, where the relevant factor may include the distance between the network device and the terminal device or the communication quality between the network device and the terminal device, and the indication of the second indication information
  • the types include the existence of the second time-frequency resource set and the absence of the second time-frequency resource.
  • the first time-frequency resource set and the second time-frequency resource set are respectively located on consecutive and different symbols in the same time slot in the time domain.
  • the number of symbols occupied by the first time-frequency resource set and the second time-frequency resource set in the time domain does not exceed three.
  • the first time-frequency resource set occupies one symbol in the time domain
  • the second time-frequency resource set occupies one or two symbols in the time domain.
  • the second indication information when the second indication information indicates that the second time-frequency resource set exists, the second indication information also indicates that the second time-frequency resource set and the first time-frequency resource set are located in the time domain, respectively. On consecutive and different symbols in the same slot; or, when the second indication information indicates that there is a second time-frequency resource set, the second indication information is also used to indicate the second time-frequency resource set and the first time-frequency resource The sets are located in different time slots in the time domain.
  • the second indication information indicates that the second time-frequency resource set exists
  • the second indication information is also used to indicate the time domain occupied by the second time-frequency resource set in a time period. The number of symbols.
  • the second indication information when the second indication information indicates that the second time-frequency resource set and the first time-frequency resource set are respectively located on consecutive and different symbols in the same time slot in the time domain, the second indication The information also indicates the number of symbols occupied by the second time-frequency resource set in the time domain; or, the second indication information indicates that the second time-frequency resource set and the first time-frequency resource set are located at different time in the time domain. In the case of a slot, the second indication information also indicates the number of symbols occupied by the second time-frequency resource set in the time domain.
  • the frequency domain resources occupied by the first time-frequency resource and the second time-frequency resource are the same.
  • the first time-frequency resource and the second time-frequency resource occupy the same number of symbols in the time domain.
  • FIG. 10 is a schematic structural diagram of a terminal device according to an embodiment of the application.
  • the communication device 1000 includes a receiving unit 1001.
  • the receiving unit 1001 is configured to receive first indication information sent by a network device, where the first indication information is used to indicate a first time-frequency resource set;
  • the receiving unit 1001 is further configured to receive second indication information sent by the network device, where the second indication information is used to indicate the presence or absence of the second time-frequency resource set;
  • the receiving unit 1001 is further configured to receive control information sent by a network device on the first time-frequency resource of the first time-frequency resource set;
  • the receiving unit 1001 is further configured to receive control information sent by the network device on the second time-frequency resource of the second time-frequency resource set when the second indication information indicates that the second time-frequency resource set exists, where the first The time-frequency resource set and the second time-frequency resource set may belong to the same transmission period of the control information in the time domain.
  • the receiving unit 1001 may receive the first indication information sent by the network device, so as to receive the control information on the first time-frequency resource of the first time-frequency resource set according to the indication of the first indication information, the receiving unit 1001 may also receive second indication information sent by the network device.
  • the control may be repeatedly received in the second time-frequency resource of the second time-frequency resource set.
  • the terminal device can receive at least two copies of the same control information within one control information transmission cycle, thereby improving the correct rate of the terminal device receiving control information; in addition, this solution provides a specific implementation method for repeatedly sending control information , Improve the feasibility of this program.
  • the first time-frequency resource set and the second time-frequency resource set are respectively located on consecutive and different symbols in the same time slot in the time domain.
  • the number of symbols occupied by the first time-frequency resource set and the second time-frequency resource set in the time domain does not exceed three.
  • the first time-frequency resource set occupies one symbol in the time domain
  • the second time-frequency resource set occupies one or two symbols in the time domain.
  • the second indication information when the second indication information indicates that the second time-frequency resource set exists, the second indication information also indicates that the second time-frequency resource set and the first time-frequency resource set are located in the time domain, respectively. On consecutive and different symbols in the same slot; or, when the second indication information indicates that there is a second time-frequency resource set, the second indication information is also used to indicate the second time-frequency resource set and the first time-frequency resource The sets are located in different time slots in the time domain.
  • the second indication information indicates that the second time-frequency resource set exists
  • the second indication information is also used to indicate the time domain occupied by the second time-frequency resource set in a time period. The number of symbols.
  • the second indication information when the second indication information indicates that the second time-frequency resource set and the first time-frequency resource set are respectively located on consecutive and different symbols in the same time slot in the time domain, the second indication The information also indicates the number of symbols occupied by the second time-frequency resource set in the time domain; or,
  • the second indication information indicates that the second time-frequency resource set and the first time-frequency resource set are located in different time slots in the time domain
  • the second indication information also indicates that the second time-frequency resource set is located in the time domain. The number of symbols occupied.
  • the frequency domain resources occupied by the first time-frequency resource and the second time-frequency resource are the same.
  • the first time-frequency resource and the second time-frequency resource occupy the same number of symbols in the time domain.
  • FIG. 11 is a schematic structural diagram of a network device provided by an embodiment of the application.
  • the communication device 1100 includes a sending unit 1101.
  • the sending unit 1101 is configured to send the first indication information to the terminal device, where the first indication information is used to indicate the first time-frequency resource set;
  • the sending unit 1101 is further configured to send control information to the terminal device on the first time-frequency resource in the first time-frequency resource set;
  • the sending unit 1101 is further configured to repeatedly send the control information to the terminal device on the second time-frequency resource in the second time-frequency resource set when it is determined that the preset repeated sending control information condition is satisfied according to related factors;
  • the multiple time-frequency resources included in the second time-frequency resource set include the second time-frequency resource, and the first time-frequency resource set and the second time-frequency resource set can belong to the same transmission period of the control information in the time domain.
  • relevant factors include the distance between the network device and the terminal device or the communication quality between the network device and the terminal device.
  • the sending unit 1101 sends the first indication information to the terminal device, so that the terminal device can determine the first time-frequency resource set according to the first indication information, and set it on the first time-frequency resource of the first time-frequency resource set
  • the sending unit 1101 may also repeatedly send the control information to the terminal device on the second time-frequency resource in the second time-frequency resource set under the condition that the preset repeated transmission control information is satisfied, so that the terminal device can If the control information repeatedly sent by the network device is received on the second time-frequency resource of the second time-frequency resource set, the terminal device can receive at least two copies of the same control information within one transmission period of the control information, thereby improving the terminal device’s reception The accuracy of the control information; in addition, the network device can determine according to relevant factors that the control information is repeatedly sent to the terminal device only when the preset condition for repeatedly sending the control information is satisfied, thereby avoiding the waste of communication resources.
  • the preset condition for repeatedly sending control information includes that the distance between the network device and the terminal device is greater than or equal to the first preset threshold and/or the communication quality between the network device and the terminal device is lower than or Equal to the second threshold.
  • the first time-frequency resource set and the second time-frequency resource set are respectively located on consecutive and different symbols in the same time slot in the time domain.
  • the number of symbols occupied by the first time-frequency resource set and the second time-frequency resource set in the time domain does not exceed three.
  • the first time-frequency resource set occupies one symbol in the time domain
  • the second time-frequency resource set occupies one or two symbols in the time domain.
  • the frequency domain resources occupied by the first time-frequency resource and the second time-frequency resource are the same.
  • the first time-frequency resource and the second time-frequency resource occupy the same number of symbols in the time domain.
  • the communication device 1200 includes a receiving unit 1201 and a determining unit 1202.
  • the receiving unit 1201 is configured to receive first indication information sent by a network device, where the first indication information is used to indicate a first time-frequency resource set;
  • the receiving unit 1201 is further configured to receive control information sent by the network device on the first time-frequency resource of the first time-frequency resource set;
  • the determining unit 1202 is configured to determine the position of the second time-frequency resource set according to the first time-frequency resource set and preset rules
  • the receiving unit 1201 is further configured to receive the network device on the second time-frequency resource of the second time-frequency resource set when the network device repeatedly sends the control information on the second time-frequency resource of the second time-frequency resource set Control information sent repeatedly;
  • the multiple time-frequency resources included in the second time-frequency resource set include the second time-frequency resource, and the first time-frequency resource set and the second time-frequency resource set can belong to the same transmission period of the control information in the time domain.
  • the receiving unit 1201 may receive the first indication information sent by the network device, so that the control information is received on the first time-frequency resource of the first time-frequency resource set according to the indication of the first indication information, and the determining unit 1202 may also determine the position of the second time-frequency resource set according to a preset rule, and repeatedly monitor the control information on the second time-frequency resource set, then repeat on the second time-frequency resource of the second time-frequency resource set by the network device
  • the terminal device can receive the control information repeatedly sent by the network device on the second time-frequency resource, and the terminal device can receive at least two copies of the same control information within one transmission period of the control information, thereby improving The correct rate of the terminal equipment receiving control information.
  • the preset rule may include that the second time-frequency resource set and the first time-frequency resource set are located on consecutive and different symbols in the same time slot, or the second time-frequency resource set and the first time-frequency resource set are located on consecutive and different symbols.
  • the resource sets are X time slots apart, or the second time-frequency resource set and the first time-frequency resource set are Y milliseconds apart.
  • the first time-frequency resource set and the second time-frequency resource set are respectively located on consecutive and different symbols in the same time slot in the time domain.
  • the number of symbols occupied by the first time-frequency resource set and the second time-frequency resource set in the time domain does not exceed three.
  • the first time-frequency resource set occupies one symbol in the time domain
  • the second time-frequency resource set occupies one or two symbols in the time domain.
  • the preset rule may also include the number of symbols occupied by the second time-frequency resource set in the time domain.
  • the preset rule may also include that the frequency domain resources occupied by the first time-frequency resource and the second time-frequency resource are the same.
  • the first time-frequency resource and the second time-frequency resource occupy the same number of symbols in the time domain.
  • FIG. 13 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • the communication device may be a network device or a terminal device. It can be a circuit.
  • the communication device can be used to perform the actions performed by the network device or the terminal device in the foregoing method embodiments.
  • FIG. 13 shows a schematic structural diagram of a simplified communication device. It is easy to understand and easy to illustrate.
  • the communication device uses a mobile phone as an example.
  • the communication device includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, control the communication device, execute the software program, and process the data of the software program.
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal.
  • the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of communication devices may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • FIG. 13 only one memory and processor are shown in FIG. 13. In an actual communication device product, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or storage device.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
  • the antenna and radio frequency circuit with the transceiver function may be regarded as the transceiver unit of the communication device, and the processor with the processing function may be regarded as the processing unit of the communication device.
  • the communication device includes a transceiving unit 1310, a processing unit 1320, and an input/output device 1330.
  • the transceiver unit may also be called a transceiver, a transceiver, a transceiver, and so on.
  • the processing unit may also be called a processor, a processing board, a processing module, a processing device, and so on.
  • the device for implementing the receiving function in the transceiver unit 1310 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiver unit 1310 as the sending unit, that is, the transceiver unit 1310 includes a receiving unit and a sending unit.
  • the transceiver unit may sometimes be called a transceiver, transceiver, or transceiver circuit.
  • the receiving unit may sometimes be called a receiver, a receiver, or a receiving circuit.
  • the transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
  • transceiving unit 1310 is used to perform sending and receiving operations on the terminal device or network device side in the foregoing method embodiment
  • processing unit 1320 is used to perform other than the transceiving operations on the terminal device or network device side in the foregoing method embodiment. Other operations.
  • the transceiver unit 1310 is used to perform the sending operations on the network device side in step 201, step 203, step 204, and step 205 in FIG. 2, and/or the transceiver unit 1310 is also used to perform this application Other transceiving steps on the network device side in the embodiment.
  • the processing unit 1320 is configured to execute step 202 in FIG. 2, and/or the processing unit 1320 is further configured to execute other processing steps on the network device side in the embodiment of the present application.
  • the transceiver unit 1310 is configured to perform the receiving operations on the terminal device side in step 201, step 203, step 206, and step 209 in FIG. 2, and/or the transceiver unit 1320 is also configured to perform Other transceiving steps on the terminal device side in the embodiment of this application.
  • the processing unit 1320 is configured to execute step 205 and step 208 in FIG. 2, and/or the processing unit 1320 is also configured to execute other processing steps on the terminal device side in the embodiment of the present application.
  • the transceiver unit 1310 is used to perform the sending operations on the network device side in step 601, step 602, and step 607 in FIG. 6, and/or the transceiver unit 1310 is also used to perform the implementation of the application In the example, other receiving and sending steps on the network device side.
  • the processing unit 1320 is configured to execute step 606 in FIG. 6, and/or the processing unit 1320 is further configured to execute other processing steps on the network device side in the embodiment of the present application.
  • the transceiver unit 1310 is used to perform the receiving operations on the terminal device side in step 601, step 604, and step 608 in FIG. 6, and/or the transceiver unit 1310 is also used to perform the implementation of the application In the example, the other sending and receiving steps on the terminal device side.
  • the processing unit 1320 is configured to execute step 603 and step 605 in FIG. 6, and/or the processing unit 1320 is also configured to execute other processing steps on the terminal device side in the embodiment of the present application.
  • the transceiver unit 1310 is configured to perform the sending operations on the network device side in step 702, step 703, and step 704 in FIG. 7, and/or the transceiver unit 1310 is also configured to perform the implementation of this application. In the example, other receiving and sending steps on the network device side.
  • the processing unit 1320 is configured to execute step 701 in FIG. 7, and/or the processing unit 1320 is further configured to execute other processing steps on the network device side in the embodiment of the present application.
  • the transceiving unit 1310 is used to perform the receiving operations on the terminal device side in step 702, step 703, and step 704 in FIG. 7, and/or the transceiving unit 1310 is also used to perform the implementation of this application In the example, the other sending and receiving steps on the terminal device side.
  • the processing unit 1320 is configured to execute step 705, step 706, and step 707 in FIG. 7, and/or the processing unit 1320 is further configured to execute other processing steps on the terminal device side in the embodiment of the present application.
  • the transceiving unit 1310 is used to perform the sending operations on the network device side in step 802 and step 804 in FIG. 8, and/or the transceiving unit 1310 is also used to perform the network device in the embodiment of the present application.
  • the processing unit 1320 is configured to execute steps 801 and 803 in FIG. 8, and/or the processing unit 1320 is also configured to execute other processing steps on the network device side in the embodiment of the present application.
  • the transceiving unit 1310 is used to perform the receiving operations on the terminal device side in step 802 and step 804 in FIG. 8, and/or the transceiving unit 1310 is also used to perform the terminal device in the embodiment of the present application.
  • the processing unit 1320 is configured to execute step 805 in FIG. 8, and/or the processing unit 1320 is further configured to execute other processing steps on the terminal device side in the embodiment of the present application.
  • the chip When the communication device is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input/output circuit or a communication interface;
  • the processing unit is a processor or microprocessor or integrated circuit integrated on the chip.
  • the device can perform functions similar to the processor in FIG. 13.
  • the device includes a processor 1410, a data sending processor 1420, and a data receiving processor 1430.
  • the processing unit 1320 in the foregoing embodiment may be the processor 1410 in FIG. 14 and completes corresponding functions.
  • the transceiver unit 1310 in the foregoing embodiment may be the sending data processor 1420 and/or the receiving data processor 1430 in FIG. 14.
  • the channel encoder and the channel decoder are shown in FIG. 14, it can be understood that these modules do not constitute a restrictive description of this embodiment, and are only illustrative.
  • the processing device 1500 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem.
  • the communication device in this embodiment can be used as a modulation subsystem therein.
  • the modulation subsystem may include a processor 1501 and an interface 1502.
  • the processor 1501 completes the function of the aforementioned processing unit 1320
  • the interface 1502 completes the function of the aforementioned transceiver unit 1310.
  • the modulation subsystem includes a memory 1503, a processor 1501, and a program stored on the memory 1503 and running on the processor.
  • the processor 1501 executes the program on the terminal device side in the above method embodiment. Methods.
  • the memory 1503 can be non-volatile or volatile, and its location can be located inside the modulation subsystem or in the processing device 1500, as long as the memory 1503 can be connected to the processor 1501. can.
  • the embodiment of the present application also provides a computer-readable storage medium, which stores signal processing instructions, and when it runs on a computer, the computer executes the implementation shown in FIGS. 2 to 8 above. The steps performed by the network device in the method described in the example.
  • the embodiment of the present application also provides a computer-readable storage medium, which stores signal processing instructions, and when it runs on a computer, the computer executes the implementation shown in FIGS. 2 to 8 above. The steps performed by the terminal device in the method described in the example.
  • the embodiments of the present application also provide a computer program product containing signal processing instructions, which, when run on a computer, causes the computer to execute what is executed by the network device in the method described in the foregoing embodiments shown in FIGS. 2 to 8 step.
  • the embodiment of the present application also provides a computer program product containing signal processing instructions, which when running on a computer, causes the computer to execute what is executed by the terminal device in the method described in the foregoing embodiments shown in FIGS. 2 to 8 step.
  • the processor mentioned in any of the above may be a general-purpose central processing unit, a microprocessor, an ASIC, or one or more integrated circuits for controlling the execution of the program of the method in the first aspect.
  • the embodiments of the present application also provide a chip system, which includes a processor, which is used to support network devices to implement the functions involved in the above aspects, for example, send or process data and/or information involved in the above methods .
  • the chip system further includes a memory, and the memory is used to store necessary program instructions and data of the network device.
  • the chip system can be composed of chips, or include chips and other discrete devices.
  • the device embodiments described above are merely illustrative, and the units described as separate components may or may not be physically separated, and the components displayed as units may or may not The physical unit can be located in one place or distributed across multiple network units. Some or all of the modules can be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the connection relationship between the modules indicates that they have a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines.
  • this application can be implemented by means of software plus necessary general hardware.
  • it can also be implemented by dedicated hardware including dedicated integrated circuits, dedicated CPUs, dedicated memory, Dedicated components and so on to achieve.
  • all functions completed by computer programs can be easily implemented with corresponding hardware, and the specific hardware structure used to achieve the same function can also be diverse, such as analog circuits, digital circuits or special purpose circuits. Circuit etc.
  • software program implementation is a better implementation in more cases.
  • the technical solution of this application essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product is stored in a readable storage medium, such as a computer floppy disk.
  • a readable storage medium such as a computer floppy disk.
  • U disk mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, etc., including several instructions to make a computer device (which can be A personal computer, a server, or a network device, etc.) execute the method described in each embodiment of the present application.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website site, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • wired such as coaxial cable, optical fiber, digital subscriber line (DSL)
  • wireless such as infrared, wireless, microwave, etc.
  • the computer-readable storage medium may be any available medium that can be stored by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

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Abstract

一种信号发送方法、信号接收方法以及相关设备，网络设备可以分别在第一时频资源上和第二时频资源上向终端设备重复发送控制信息，从而终端设备可以在控制信息一个传输周期内接收到至少两份相同的控制信息，提高了终端设备接收控制信息的正确率。方法包括：网络设备向终端设备发送第一指示信息，第一指示信息用于指示第一时频资源集；网络设备向终端设备发送第二指示信息，第二指示信息用于指示第二时频资源集存在或不存在；网络设备在第一时频资源集中的第一时频资源上向终端设备发送控制信息；在第二指示信息指示第二时频资源集存在的情况下，网络设备在第二时频资源集中的第二时频资源上向终端设备发送控制信息。

Description

一种信号发送方法、信号接收方法以及相关设备
本申请要求于2019年01月31日提交中国专利局、申请号为201910099234.9、发明名称为“一种信号发送方法、信号接收方法以及相关设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，尤其涉及一种信号发送方法、信号接收方法以及相关设备。
背景技术
在第五代移动通信系统(The fifth generation，5G)中的新空口(New Radio，NR)技术中定义了同步信号/广播信道块(SS/PBCH block，SSB)，一个SSB包含了主同步信号(primary synchronization signal，PSS)、辅同步信号(secondary synchronization signal，SSS)和物理广播信道(Physical Broadcast Channel，PBCH)。
在5G-NR技术中，在终端设备接入到5G-NR系统时，会先接收网络设备发送的SSB，其中，PBCH中会携带指示物理下行控制信道(Physical Downlink Control Channel，PDCCH)所在的时频资源集的时域和频域的位置的信息，网络设备会在时频资源集中向终端设备发送物理下行控制信道(Physical Downlink Control Channel，PDCCH)，PDCCH中携带者网络设备发送的下行控制信息(Downlink Control Information，DCI)。然后终端设备根据PBCH的指示接收PDCCH并获取其中的DCI。
随着系统的演进，5G-NR系统中需要支持更广的覆盖，也就是需要覆盖离网络设备更远的终端设备，通常，这些终端设备的信干噪比(Signal-to-Noise Ratio，SNR)极低，使得距离网络设备较远的终端设备接收DCI的正确率往往较低。
发明内容
本申请提供了一种信号发送方法、信号接收方法以及相关设备，网络设备可以分别在第一时频资源集中的第一时频资源上和第二时频资源集的第二时频资源上向终端设备重复发送控制信息，从而终端设备可以在控制信息一个传输周期内接收到至少两份相同的控制信息，从而提高了终端设备接收控制信息的正确率。
第一方面，本申请提供一种信号发送方法，方法包括：网络设备可以向终端设备发送包含第一指示信息，第一指示信息用于指示第一时频资源集，网络设备还可以向终端设备发送第二指示信息，第二指示信息用于指示第二时频资源集存在或不存在，网络设备在第一时频资源集中的第一时频资源上向终端设备发送控制信息，在第二指示信息指示第二时频资源集存在的情况下，网络设备在第二时频资源集中的第二时频资源上向终端设备重复发送控制信息，其中，第一时频资源集包含的多个时频资源中包含第一时频资源，第二时频资源集包含的多个时频资源中包含第二时频资源，第二时频资源集为用于供网络设备重复发送控制信息的时频资源集，第一时频资源集和第二时频资源集在时域上可以归属于控制信息的同一个传输周期内，第二时频资源集存在指的是存在用于供网络设备向终端设备 重复发送控制信息的第二时频资源，对应的，第二时频资源不存在指的是不存在用于供网络设备向终端设备重复发送控制信息的第二时频资源。
在本申请中，网络设备向终端设备发送第一指示信息，从而终端设备可以根据第一指示信息确定第一时频资源集，并在第一时频资源集的第一时频资源上获取到控制信息，网络设备还向终端设备发送第二指示信息，终端设备根据第二指示信息确定第二时频资源集存在不存在，在第二时频资源集存在的情况下，终端设备可以在第二时频资源集的第二时频资源上接收到网络设备重复发送的控制信息，则终端设备可以在控制信息一个传输周期内接收到至少两份相同的控制信息，从而提高了终端设备接收控制信息的正确率；此外，本方案中提供了重复发送控制信息的具体实现方式，提高了本方案的可实现性。
在第一方面的一种可能的设计中，在网络设备向终端设备发送第二指示信息之前，方法还可以包括：网络设备可以根据相关因素确定向终端设备发送的第二指示信息的指示类型，其中，相关因素可以包括网络设备与终端设备之间的距离或者网络设备与终端设备之间的通信质量，第二指示信息的指示类型包含第二时频资源集存在和第二时频资源不存在。本申请中，网络设备还可以结合相关因素确定第二指示信息的类型，也即确定是否向终端设备重复发送控制信息，若网络设备与终端设备之间的距离较近或则通信质量良好，则没有必要再重复发送控制信息，从而避免通信资源的浪费；若网络设备与终端设备之间的距离较远或通信质量较差，重复发送控制信息，从而提高了终端设备接收控制信息的正确率。
在第一方面的一种可能的设计中，第一时频资源集与第二时频资源集在时域上分别位于同一个时隙内连续且不同的符号上，其中，符号可以为正交频分复用符号、通用滤波多载波符号或广义频分多工符号。本申请中，第一时频资源集和第二时频资源集在时域上可以位于分别位于同一个时隙内连续且不同的符号上，从而终端设备在根据第二指示信息确定存在第二时频资源集的情况下，终端设备可以在连续的几个符号上接收到至少两份相同的控制信息，从而不仅提升了终端设备检测控制信息的成功率，而且节省了终端设备监听控制信息的时间。
在第一方面的一种可能的设计中，第一时频资源集与第二时频资源集在时域上占用的符号数不超过三个。本申请中，由于对控制信息预留的时频资源在时域上的符号数为三个，在第一时频资源集和第二时频资源集在时域上占用的符号数不超过三个的情况下，能够保持控制信息整体所占用的时频资源的开销较少。
在第一方面的一种可能的设计中，第一时频资源集在时域上占用一个符号，第二时频资源集在时域上占用一个或两个符号。本申请中，第二时频资源集在时域上占用的符号数大于第一时频资源集在时域上占用的符号数，从而可以确保网络设备可以通过第二时频资源集发送至少一份完整的控制信息，从而确保终端设备可以接收到两份甚至三份相同的控制信息，提升了终端设备检测控制信息的成功率。
在第一方面的一种可能的设计中，在第二指示信息指示存在第二时频资源集的情况下，第二指示信息还指示第二时频资源集与第一时频资源集在时域上分别位于同一时隙内连续且不同的符号上；或者，在第二指示信息指示存在第二时频资源集的情况下，第二指示信息还用于指示第二时频资源集与第一时频资源集在时域上分别位于不同的时隙。本申请中，网络设备发送的第二指示信息还可以用于指示第二时频资源集的位置，从而终端设备可以 根据第二指示信息初步确定第二时频资源集的位置，缩小了终端设备监听控制信息的范围，有利于降低终端设备的负载。
在第一方面的一种可能的设计中，在第二指示信息指示存在第二时频资源集的情况下，第二指示信息还用于指示第二时频资源集在一个时间段内在时域上所占用的符号个数。本申请中，网络设备发送的第二指示信息还可以用于指示第二时频资源集的符号个数，从而终端设备可以根据第二指示信息确定第二时频资源集的符号个数，在监听控制信息的过程中，若已经在L个符号中重复监听到了控制信息，当L个符号等于第二指示信息指示的符号个数时，终端设备无须在其他时频资源上监听控制信息，有利于降低终端设备的负载。
在第一方面的一种可能的设计中，在第二指示信息指示第二时频资源集与第一时频资源集在时域上分别位于同一时隙内连续且不同的符号上的情况下，第二指示信息还指示第二时频资源集在时域上所占用的符号个数；或者，在第二指示信息指示第二时频资源集与第一时频资源集在时域上分别位于不同的时隙的情况下，第二指示信息还指示第二时频资源集在时域上所占用的符号个数。本申请中，网络设备发送的第二指示信息不仅指示第二时频资源集的位置，还指示第二时频资源集所占用的符号个数，从而终端设备可以结合第二指示信息对第二时频资源集进行精准定位，缩小了终端设备监听控制信息的范围，有利于降低终端设备的负载。
在第一方面的一种可能的设计中，第一时频资源和第二时频资源占用的频域资源相同。本申请中，网络设备可以在相同的频域上重复发送控制信息，有利于网络设备完成控制信息的重复发送操作，也有利于网络设备对时频资源的管理。
在第一方面的一种可能的设计中，第一时频资源和第二时频资源在时域上占用的符号数相等。
第二方面，本申请提供一种信号接收方法，方法包括：终端设备接收网络设备发送的第一指示信息，第一指示信息用于指示第一时频资源集，终端设备接收网络设备发送的第二指示信息，第二指示信息用于指示第二时频资源集存在或不存在，终端设备在第一时频资源集中监听控制信息，以在第一时频资源集的第一时频资源上接收到网络设备发送的控制信息，在终端设备根据第二指示信息确定第二时频资源集存在的情况下，终端设备重复监听控制信息，以在第二时频资源集的第二时频资源上接收到网络设备发送的控制信息，其中，第一时频资源集包含的多个时频资源中包含第一时频资源，第二时频资源集包含的多个时频资源中包含第二时频资源，第二时频资源集为用于供网络设备重复发送控制信息的时频资源集，第一时频资源集和第二时频资源集在时域上可以归属于控制信息的同一个传输周期内，第二时频资源集存在指的是存在用于供网络设备向终端设备重复发送控制信息的第二时频资源，对应的，第二时频资源不存在指的是不存在用于供网络设备向终端设备重复发送控制信息的第二时频资源。
在本申请中，终端设备可以接收到网络设备发送的第一指示信息，从而根据第一指示信息的指示在第一时频资源集的第一时频资源上接收到控制信息，终端设备还可以接收到网络设备发送的第二指示信息，在第二指示信息指示第二时频资源集存在的情况下，终端设备重复监听控制信息，从而可以在第二时频资源集的第二时频资源中重复监听到控制信息，则终端设备可以在控制信息一个传输周期内接收到至少两份相同的控制信息，从而提 高了终端设备接收控制信息的正确率；此外，本方案中提供了重复发送控制信息的具体实现方式，提高了本方案的可实现性。
本申请第二方面各种可能的设计的有益效果和具体实现方式，可以参考第一方面，此处不再一一赘述。
第三方面，本申请提供一种信号发送方法，方法包括：网络设备可以向终端设备发送包含第一指示信息，第一指示信息用于指示第一时频资源集，网络设备可以在第一时频资源集中的第一时频资源上向终端设备发送控制信息，在网络设备根据相关因素确定满足预设的重复发送控制信息条件的情况下，网络设备还可以在第二时频资源集中的第二时频资源上向终端设备重复发送控制信息，其中，第一时频资源集包含的多个时频资源中包含第一时频资源，第二时频资源集包含的多个时频资源中包含第二时频资源，第二时频资源集为用于供网络设备重复发送控制信息的时频资源集，第一时频资源集和第二时频资源集在时域上可以归属于控制信息的同一个传输周期内，相关因素包括网络设备与终端设备之间的距离或者网络设备与终端设备之间的通信质量。
在本申请中，网络设备向终端设备发送第一指示信息，从而终端设备可以根据第一指示信息确定第一时频资源集，并在第一时频资源集的第一时频资源上获取到控制信息，网络设备还可以在满足预设的重复发送控制信息的情况下，在第二时频资源集中的第二时频资源上向终端设备重复发送控制信息，从而终端设备可以在第二时频资源集的第二时频资源上接收到网络设备重复发送的控制信息，则终端设备可以在控制信息一个传输周期内接收到至少两份相同的控制信息，从而提高了终端设备接收控制信息的正确率；此外，网络设备可以根据相关因素确定满足预设的重复发送控制信息条件的情况下才向终端设备重复发送控制信息，从而避免通信资源的浪费。
在第三方面的一种可能的设计中，预设的重复发送控制信息条件包含网络设备与终端设备之间的距离大于或等于第一预设阈值和/或网络设备与终端设备之间的通信质量低于或等于第二阈值。在本申请中，提供了预设的重复发送控制信息条件的具体包含内容，提高了本方案的可操作性。
在第三方面的一种可能的设计中，第一时频资源集与第二时频资源集在时域上分别位于同一个时隙内连续且不同的符号上，其中，符号可以为正交频分复用符号、通用滤波多载波符号或广义频分多工符号。
在第三方面的一种可能的设计中，第一时频资源集与第二时频资源集在时域上占用的符号数不超过三个。
在第三方面的一种可能的设计中，第一时频资源集在时域上占用一个符号，第二时频资源集在时域上占用一个或两个符号。
在第三方面的一种可能的设计中，第一时频资源和第二时频资源占用的频域资源相同。
在第三方面的一种可能的设计中，第一时频资源和第二时频资源在时域上占用的符号数相等。
第四方面，本申请提供一种信号接收方法，方法包括：终端设备可以接收网络设备发送的第一指示信息，并根据第一指示信息的指示确定第一时频资源集的位置，在第一时频资源集上监听控制信息，以在第一时频资源集中的第一时频资源上接收到网络设备发送的 控制信息，终端设备还可以根据第一时频资源集和预设规则，确定第二时频资源集的位置，并在第二时频资源集上重复监听控制信息，在网络设备在第二时频资源集的第二时频资源上重复发送控制信息的情况下，终端设备可以在第二时频资源集的第二时频资源上接收到网络设备重复发送的控制信息，其中，第一时频资源集和第二时频资源集在时域上可以归属于控制信息的同一个传输周期内。
本申请中，终端设备可以接收到网络设备发送的第一指示信息，从而根据第一指示信息的指示在第一时频资源集的第一时频资源上接收到控制信息，终端设备还可以根据预设规则确定第二时频资源集的位置，并在第二时频资源集上重复监听控制信息，则在网络设备在第二时频资源集的第二时频资源上重复发送控制信息的情况下，终端设备可以在第二时频资源上接收到网络设备重复发送的控制信息，则终端设备可以在控制信息一个传输周期内接收到至少两份相同的控制信息，从而提高了终端设备接收控制信息的正确率。
在第四方面的一种可能的设计中，预设规则可以包含第二时频资源集与第一时频资源集位于同一时隙内连续且不同的符号上，或者第二时频资源集与第一时频资源集之间相距X个时隙，或者第二时频资源集与第一时频资源集之间相距Y毫秒。本申请中，具体提供了预设规则的各种可能实现方式，提高了本方案的可实现性和可操作性。
在第四方面的一种可能的设计中，预设规则还可以包含第二时频资源集在时域上占用的符号个数。本申请中，进一步确定了第二时频资源集在时域上的符号数，结合第二时频资源集的位置，从而终端设备可以全面监听第二时频资源集包含的所有时频资源，避免产生监听遗漏。
在第四方面的一种可能的设计中，预设规则还可以包含第一时频资源与第二时频资源所占用的频域资源相同。本申请中，由于第一时频资源和第二时频资源所占用的频域资源相同，则终端设备在确定第一时频资源在占用的频域资源和第二时频资源集在时域上的位置之后，可以精准定位第二时频资源的位置，从而终端设备仅需在第二时频资源上重复监听控制资源，减轻终端设备的负载。
本申请第四方面其他各种可能的设计的有益效果和实现方式，可以参考第三方面，此处不再一一赘述。
第五方面，本申请提供一种信号发送方法，方法可以包括：网络设备确定M个用于发送第一信息的第一信号，网络设备向终端设备发送第三指示信息，第三指示信息用于指示与第一信号对应的参考信号的时频资源位置，其中，网络设备将M个第二信息分别承载在M个第一信号上发送给终端设备，其中，第一信号为用于承载数据的信号，M为大于1的整数，第二信息为对第一信息进行编码后的信息。
在第五方面的一种可能的设计中，方法还可以包括：网络设备向终端设备发送第四指示信息，第四指示信息用于指示M个第一信号中的每个第一信号所承载的第二信息对应的冗余版本，其中，N为大于1的整数，M为N的整数倍。
在第五方面的一种可能的设计中，第三指示信息可以包含于由网络设备发送给终端设备的控制信息中。
在第五方面的一种可能的设计中，第四指示信息可以包含于由网络设备发送给终端设备的控制信息中。
第六方面，本申请提供一种信号接收方法，方法可以包括：终端设备接收网络设备发送的第三指示信息，第三指示信息用于指示与M个第一信号中的每个第一信号对应的参考信号的时频资源位置，终端设备接收网络设备通过M个第一信号发送的M个第二信息。
本申请第六方面的各种可能的设计，可以参见第五方面。
第七方面，本申请还提供一种信号发送方法，方法可以包括：终端设备确定M个第四信息，其中，M个第四信息中任一第四信息为对第三信息进行编码后的信息，并将M个第四信息分别承载在M个第二信号上发送给网络设备，终端设备接收第五指示信息，并根据第五指示信息确定与M个第二信号中每个第二信号对应的参考信号的时频资源位置。
在第七方面的一种可能的设计中，方法还可以包括：终端设备向网络设备发送第六指示信息，第六指示信息用于指示与第二信号中承载的第四信息对应的冗余版本。
第八方面，本申请还提供一种信号接收方法，方法可以包括：网络设备接收M个第二信号中的至少一个第二信号，网络设备向终端设备发送第五指示信息，第五指示信息用于指示与M个第二信号中的每个第二信号对应的参考信号的时频资源位置。
本申请第八方面的各种可能的设计，可以参见第七方面。
第九方面，本申请提供一种通信装置，通信装置可以包括发送单元；发送单元，用于向终端设备发送第一指示信息，第一指示信息用于指示第一时频资源集，发送单元，还用于向终端设备发送第二指示信息，第二指示信息用于指示第二时频资源集存在或不存在，发送单元，还用于在第一时频资源集中的第一时频资源上向终端设备发送控制信息，发送单元，还用于在第二指示信息指示第二时频资源集存在的情况下，在第二时频资源集中的第二时频资源上向终端设备发送控制信息，第二时频资源集包含的多个时频资源中包含第二时频资源，其中，第一时频资源集和第二时频资源集在时域上可以归属于控制信息的同一个传输周期内。
第十方面，本申请提供一种通信装置，通信装置可以包括接收单元；接收单元，用于接收网络设备发送的第一指示信息，第一指示信息用于指示第一时频资源集，接收单元，还用于接收网络设备发送的第二指示信息，第二指示信息用于指示第二时频资源集存在或不存在，接收单元，还用于在第一时频资源集的第一时频资源上接收网络设备发送的控制信息，接收单元，还用于在第二指示信息指示第二时频资源集存在的情况下，在第二时频资源集的第二时频资源上接收网络设备发送的控制信息，其中，第一时频资源集和第二时频资源集在时域上可以归属于控制信息的同一个传输周期内。
第十一方面，本申请提供一种通信装置，通信装置包括：至少一个处理器、至少一个存储器；至少一个存储器用于存储指令；至少一个处理器用于执行至少一个存储器中的指令，使得通信装置执行如前述第一方面或第二方面中任一项的方法。
第十二方面，本申请提供了一种计算机可读存储介质，计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第一方面或第二方面中任一项的方法。
第十三方面，本申请提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面或第二方面中任一项的方法。
本申请第九方面至第十三方面的有益效果以及各种可能的设计的实现方式，可以参考第一方面。
第十四方面，本申请提供一种通信装置，通信装置可以包括发送单元；发送单元，用于向终端设备发送第一指示信息，第一指示信息用于指示第一时频资源集，发送单元，还用于在第一时频资源集中的第一时频资源上向终端设备发送控制信息，发送单元，还用于在确定满足预设的重复发送控制信息条件的情况下，在第二时频资源集中的第二时频资源上向终端设备重复发送控制信息，其中，第一时频资源集和第二时频资源集在时域上可以归属于控制信息的同一个传输周期内。
第十五方面，本申请提供一种通信装置，通信装置可以包括接收单元、确定单元和监听单元；接收单元可以接收网络设备发送的第一指示信息，并由确定单元根据第一指示信息的指示确定第一时频资源集的位置之后，监听单元在第一时频资源集上监听控制信息，以在第一时频资源集中的第一时频资源上接收到网络设备发送的控制信息，确定单元还可以根据第一时频资源集和预设规则，确定第二时频资源集的位置，并由监听单元在第二时频资源集上重复监听控制信息，在网络设备在第二时频资源集的第二时频资源上重复发送控制信息的情况下，终端设备可以在第二时频资源集的第二时频资源上接收到网络设备重复发送的控制信息。
第十六方面，本申请提供一种通信装置，通信装置包括：至少一个处理器、至少一个存储器；至少一个存储器用于存储指令；至少一个处理器用于执行至少一个存储器中的指令，使得通信装置执行如前述第三方面或第四方面中任一项的方法。
第十七方面，本申请提供了一种计算机可读存储介质，计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第三方面或第四方面中任一项的方法。
第十八方面，本申请提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第三方面或第四方面中任一项的方法。
本申请第十四方面至第十八方面的有益效果以及各种可能的设计的实现方式，可以参考第三方面。
附图说明
图1a为本申请实施例提供的信号处理方法的应用环境的一种网络架构示意图；
图1b为本申请实施例提供的信号处理方法的应用环境的另一种网络架构示意图；
图2为本申请实施例提供的信号处理方法的一种流程示意图；
图3为本申请实施例提供的第一时频资源集和第二时频资源集的位置的一种示意图；
图4为本申请实施例提供的第一时频资源集和第二时频资源集的位置的另一种示意图；
图5a为本申请实施例提供的第一时频资源和第二时频资源的划分方式的一种示意图；
图5b为本申请实施例提供的第一时频资源和第二时频资源的划分方式的另一种示意图；
图5c为本申请实施例提供的第一时频资源和第二时频资源的划分方式的又一种示意图；
图6为本申请实施例提供的信号处理方法的另一种流程示意图；
图7为本申请实施例提供的信号处理方法的又一种流程示意图；
图8为本申请实施例提供的信号处理方法的又一种流程示意图；
图9为本申请实施例提供的通信装置的一种结构示意图；
图10为本申请实施例提供的通信装置的另一种结构示意图；
图11为本申请实施例提供的通信装置的又一种结构示意图；
图12为本申请实施例提供的通信装置的再一种结构示意图；
图13为本申请实施例提供的通信装置的又一种结构示意图；
图14为本申请实施例提供的通信装置的再一种结构示意图；
图15为本申请实施例提供的通信装置的又一种结构示意图。
具体实施方式
本申请实施例提供了一种信号发送方法、信号接收方法以及相关设备，网络设备可以分别在第一时频资源集中的第一时频资源上和第二时频资源集的第二时频资源上向终端设备重复发送控制信息，从而终端设备可以在控制信息一个传输周期内接收到至少两份相同的控制信息，从而提高了终端设备接收控制信息的正确率。
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，这仅仅是描述本申请的实施例中对相同属性的对象在描述时所采用的区分方式。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，以便包含一系列单元的过程、方法、系统、产品或设备不必限于那些单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它单元。
下面结合附图，对本申请的实施例进行描述。显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。
本申请实施例的技术方案可以应用于各种数据处理的通信系统，例如：码分多址(code division multiple access，CDMA)、时分多址(time division multiple access，TDMA)、频分多址(frequency division multiple access，FDMA)、正交频分多址(orthogonal frequency-division multiple access，OFDMA)、单载波频分多址(single carrier FDMA，SC-FDMA)和其它系统等。术语“系统”可以和“网络”相互替换。CDMA系统可以实现例如通用无线陆地接入(universal terrestrial radio access，UTRA)，CDMA2000等无线技术。UTRA可以包括宽带CDMA(wideband CDMA，WCDMA)技术和其它CDMA变形的技术。CDMA2000可以覆盖过渡标准(interim standard，IS)2000(IS-2000)，IS-95和IS-856标准。TDMA系统可以实现例如全球移动通信系统(global system for mobile communication，GSM)等无线技术。OFDMA系统可以实现诸如演进通用无线陆地接入(evolved UTRA，E-UTRA)、超级移动宽带(ultra mobile broadband，UMB)、IEEE 802.11(Wi-Fi)，IEEE 802.16(WiMAX)，IEEE 802.20，Flash OFDMA等无线技术。UTRA和E-UTRA是UMTS以及UMTS演进版本。3GPP在长期演进(long term evolution，LTE)和基于LTE演进的各种版本是使用E-UTRA的UMTS的新版本。第五代(5Generation，简称：“5G”)通信系统、新空口(New Radio，简称“NR”)是正在研究当中的下一代通信系统。此外， 通信系统还可以适用于面向未来的通信技术，都适用本申请实施例提供的技术方案。本申请实施例描述的系统架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。应当理解，本申请实施例中仅以将控制信息发送方法应用于5G系统中为例，进行说明。
图1a和图1b分别示出了本申请实施例提供的信号处理方法的应用环境的两种可能的网络架构图，参见图1a和图1b所示，通信系统中均包含网络设备10和终端设备20，网络设备10和通信设备20之间通信连接，虽然图1a和图1b中均仅示出了一个网络设备10和两个终端设备20，但应当理解，此处仅为举例，本申请实施例并不限定网络设备10和通信设备20的数量。
本申请实施例中，在5G-NR系统中可以实现终端设备(device to device，D2D)的通信(简称“D2D通信”)，D2D是一种终端设备与终端设备直接通信的技术，终端设备与终端设备之间的通信位于侧行链路，不再需要基站的中转。
在一种实现方式下，网络设备10具体可以表现为基站，参见图1a所示，在D2D通信的一种工作模式下，由基站为终端设备20分配资源池内的时频资源，则由基站向终端设备发送控制信息；在另一种实现方式下，网络设备10也可以表现为多个终端设备20中某个特定的终端设备，参见图1b所示，在D2D通信的组播场景下，可以由特定的终端设备为每个D2D终端设备20分配资源池内的时频资源，则由特定的终端设备向终端设备20发送控制信息。
本申请实施例中，基站可以包括各种形式的宏基站，微基站，中继站，接入点，路边单元等等，当然，本申请的基站的功能也可以通过内置模块或单元实现，此内置模块或单元内置于宏基站，微基站，中继站，接入点，路边单元中。在采用不同的无线接入技术的系统中，具备基站功能的设备的名称可能会有所不同，例如在LTE系统中，称为演进的节点B(evolved NodeB简称：eNB或者eNodeB)，在NR系统中，称为gNB，在第三代3G系统中，称为节点B(Node B)等等。
终端设备，又称之为用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)、终端等，是一种向用户提供语音和/或数据连通性的设备，例如，具有无线连接功允许的手持式设备、车载设备等。目前，一些终端设备的举例为：手机、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。
本申请实施例中，为了提高终端设备接收到控制信息的准确度，网络设备不仅在第一时频资源集的第一时频资源上向终端设备发送控制信息，还可以在第二资源集的第二时频 资源上向终端设备重复发送控制信息，以使终端设备在同一个控制信息传输周期内，可以接收到两份相同的控制信息。终端设备获知第二时频资源集的途径可以存在不同的方式，具体的，在一种实现方式下，可以由网络设备向终端设备发送第二指示信息，第二指示信息指示第二时频资源集存在或不存在；在另一种实现方式下，终端设备上可以存储有预设规则，从而终端设备可以根据第一时频资源集和预设规则确定第二时频资源集，以下分别对前述两种方式进行说明。
一、网络设备向终端设备发送第二指示信息
参见图2，图2为本申请实施例提供的网络设备和终端设备之间的一种交互流程示意图，本申请实施例提供的信号发送方法，可以包括如下步骤：
201、网络设备向终端设备发送第一指示信息。
本申请实施例中，网络设备向终端设备发送的第一指示信息可以包含于物理广播信道(physical broadcast channel，PBCH)中，具体的，可以为网络设备周期性的广播PBCH。当终端设备初次进入当前网络设备所在的小区时，或者终端设备每隔一段时间，可以盲检同步信号/广播信道块(SS/PBCH block，SSB)，在接收到网络设备广播的SSB之后，可以进行定时同步，并在获取到PBCH后，从中获取到第一指示信息。
本申请实施例中，第一指示信息用于指示第一时频资源集的位置，第一时频资源集中可以包含多个时频资源，多个时频资源中的第一时频资源用于供网络设备向终端设备发送控制信息。其中，第一时频资源和第一时频资源集在时域上占用的符号位置可以重叠。
第一时频资源集可以为类型0的物理下行控制信道(physical downlink control channel，PDCCH)所占用的时频资源集的位置，也可以为类型1的物理下行控制信道(physical downlink control channel，PDCCH)所占用的时频资源集的位置，其中，时频资源集具体可以表现为控制资源集(Control Resource SET，CORESET)，也可以表现为其他类型的时频资源单元；控制信息具体表现为下行控制信息(downlink control information，DCI)，也可以为侧行链路控制信息等，其中，在5G-NR系统中定义了控制资源集，一个控制资源集在频域上包含若干个资源块，在时域上包括连续的P个符号，目前P的取值为1、2或3中的一个，应当理解，前述对于时频资源集和控制信息的举例，仅为方便理解本方案，具体此处不做限定。
202、网络设备确定向终端设备发送的第二指示信息的指示类型。
本申请的一些实施例中，网络设备可以根据若干相关因素确定向终端设备发送的第二指示信息用于指示第二时频资源集存在，还是用于指示第二时频资源不存在，其中，相关因素包括但不限于网络设备与终端设备之间的距离或网络设备与终端设备之间的通信质量等。第二指示信息的指示类型包含第二时频资源集存在和第二时频资源不存在，第二时频资源集存在指的是存在用于供网络设备向终端设备重复发送控制信息的第二时频资源，对应的，第二时频资源不存在指的是不存在用于供网络设备向终端设备重复发送控制信息的第二时频资源。
具体的，作为一种实现方式，网络设备在终端设备接入网络的过程中，以及在后续与终端设备进行信息交互的过程中，可以获知终端设备的位置，从而当终端设备与网络设备的距离大于或等于第一预设阈值时，则网络设备向终端设备发送的第二指示信息指示第二 时频资源集存在；当终端设备与网络设备的距离小于第一预设阈值时，则网络设备向终端设备发送的第二指示信息可以指示第二时频资源集不存在。
作为另一种实现方式，网络设备在与终端设备进行信息交互的过程中，可以获知网络设备与终端设备之间的通信质量，从而当网络设备与终端设备之间的通信质量低于或等于第二预设阈值时，则网络设备向终端设备发送的第二指示信息指示第二时频资源集存在；当网络设备与终端设备之间的通信质量高于第二预设阈值时，则网络设备向终端设备发送的第二指示信息可以指示第二时频资源集不存在。应当理解，上述举例仅为证明本方案的可行性，网络设备还可以结合其他因素来确定向终端发送的第二指示信息的指示内容，此处不再一一赘述。
203、网络设备向终端设备发送第二指示信息。
本申请的一些实施例中，网络设备在通过步骤203确定第二指示信息的类型后，可以向终端设备发送第二指示信息，第二指示信息用于指示第二时频资源集存在或不存在，从而终端设备可以接收到第二指示信息，可以根据第二指示信息的指示执行相应的操作，当第二指示信息指示存在第二时频资源集时，执行步骤206至步骤208；当第二指示信息指示不存在第二时频资源集，不再执行步骤206至步骤208，其中，步骤206至步骤208详细介绍了网络设备向终端设备通过第二时频资源集的第二时频资源重复发送控制信息的过程。
其中，第二时频资源集中可以包含多个时频资源，前述多个时频资源中包含的第二时频资源用于供网络设备向终端设备重复发送控制信息，其中，第二时频资源和第二时频资源集在时域上占用的符号位置可以重叠。第二时频资源集存在指的是网络设备通过第二时频资源集上的第二时频资源向终端设备重复发送控制信息，第二时频资源集不存在指的是网络设备不向终端设备重复发送控制信息。
本申请实施例中，在第二指示信息指示第二时频资源存在的情况下，第一时频资源集和第二时频资源集在时域上归属于控制信息的同一个传输周期内，也即在同一个周期内网络设备可以分别在第一时频资源和第二时频资源上重复发送控制信息。
作为一种实现方式，参见图3，图3为第一时频资源集和第二时频资源集在时域上位置的一种示意图，第一时频资源集和第二时频资源集在时域上可以位于分别位于同一个时隙内连续且不同的符号上，从而终端设备在根据第二指示信息确定存在第二时频资源集的情况下，终端设备可以在连续的几个符号上接收到至少两份相同的控制信息，从而不仅提升了终端设备检测控制信息的成功率，而且节省了终端设备监听控制信息的时间。
作为另一种实现方式，参见图4，图4为第一时频资源集和第二时频资源集在时域上位置的一种示意图，第一时频资源集和第二时频资源集在时域上也可以分别位于不同的时隙内，丰富了本方案的实现方案，从而网络设备可以结合实际情况灵活确定第二时频资源集的位置，增强了本方案的灵活性。
本申请实施例中，第一时频资源集和第二时频资源集在时域上可以占用至少两个符号，具体的，参阅图4，第一时频资源集和第二时频资源集在时域上占用的符号数可以相同；参阅图3，第一时频资源集和第二时频资源集在时域上占用的符号数也可以不相同，其中，本申请实施例中的符号可以包括但不限于以下任一种：正交频分复用(orthogonal  frequency division multiplexing，OFDM)符号，通用滤波多载波(universal filtered multicarrier,UFMC)符号，广义频分多工(generalized frequency division multiplexing，GFDM)符号等。
可选的，第一时频资源集和第二时频资源集在时域上占用的符号数不超过三个，由于对控制信息预留的时频资源在时域上的符号数为三个，在第一时频资源集和第二时频资源集在时域上占用的符号数不超过三个的情况下，能够保持控制信息整体所占用的时频资源的开销较少。
可选的，第一时频资源集在时域上占用一个符号，第二时频资源集在时域上占用一个或两个符号，第二时频资源集在时域上占用的符号数大于第一时频资源集在时域上占用的符号数，从而可以确保网络设备可以通过第二时频资源集发送至少一份完整的控制信息，从而确保终端设备可以接收到两份甚至三份相同的控制信息，提升了终端设备检测控制信息的成功率。
本申请实施例中，第二指示信息可以用于指示存在或不存在用于供网络设备向终端设备重复发送控制信息的第二时频资源集，具体的，第二指示信息可以通过取两个不同的值来分别指示存在或者不存在第二时频资源集，其中一个取值用于指示不存在前述第二时频资源集，另一个取值用于指示存在前述第二时频资源集。作为示例，例如第二指信息的两个取值分别为0和1，当第二指示信息为0时，代表不存在前述第二时频资源集，也即网络设备不会在第二时频资源集中的第二时频资源上向终端设备重复发送控制信息，则终端设备可以只在第一时频资源集上监听控制信息，而不在第二时频资源集上监听控制信息；当第二指示信息为1时，代表存在前述第二时频资源集，也即网络设备会在第二时频资源集中的第二时频资源上向终端设备重复发送控制信息，则终端设备可以在第一时频资源集和第二时频资源集上都监听控制信息，应当理解，前述举例仅为方便理解本方案，也可以为当第一指示信息为1时，代表不存在；当第一指示信息为0时，代表存在，或者还可以通过其他数字来区别存在与不存在这两种状态。
可选的，第二指示信息不仅可以用于指示存在或者不存在第二时频资源集，还可以用于指示第二时频资源集在时域上的位置。具体的，第二指示信息可以通过不同的取值分别指示多种不同的含义，其中一个取值用于指示不存在第二时频资源集，另一个取值用于指示第二时频资源集与第一时频资源集在时域上分别位于同一时隙内连续且不同的符号上，另一个取值用于指示第二时频资源集与第一时频资源集在时域上分别位于不同的时隙。作为示例，参见如下表1，第二指示信息可以通过分别取值为0、1和2来指示不同的含义，其中，当第二指示信息取值为0时，指示不存在第二时频资源集；当第二指示信息取值为2时，指示第二时频资源集与第一时频资源集在时域上分别位于同一时隙内连续且不同的符号上；当第二指示信息为3时，指示第二时频资源集与第一时频资源集在时域上分别位于不同的时隙。网络设备发送的第二指示信息还可以用于指示第二时频资源集的位置，从而终端设备可以根据第二指示信息初步确定第二时频资源集的位置，缩小了终端设备监听控制信息的范围，有利于降低终端设备的负载。
表1
Figure PCTCN2020072640-appb-000001
可选的，第二指示信息不仅可以用于指示存在或者不存在第二时频资源集，还可以用于指示第二时频资源集在一个时间段内在时域上所占用的符号个数。则第二指示信息可以通过不同的取值分别指示多种不同的含义，具体的，其中一个取值用于指示不存在第二时频资源集；另一个取值用于指示存在第二时频资源集，且在一个时间段内，第二时频资源在时域上占用的符号个数为1个；另一个取值用于指示存在第二时频资源集，且在一个时间段内在，第二时频资源集在时域上占用符号个数为2个；另一个取值用于指示存在第二时频资源集，且在一个时间段内，第二时频资源集在时域上占用的符号个数为三个等。作为示例，参见如下表2，第二指示信息可以分别取值为0、1、2和3，其中，当第二指示信息取值为0时，指示不存在第二时频资源集；当第二指示信息取值为1时，指示存在第二时频资源集且第二时频资源集在时域上占用1个符号；当第二指示信息取值为2时，指示存在第二时频资源集且第二时频资源集在时域上占用2个符号；当第二指示信息取值为3时，指示存在第二时频资源集且第二时频资源集在时域上占用三个符号。网络设备发送的第二指示信息还可以用于指示第二时频资源集的符号个数，从而终端设备可以根据第二指示信息确定第二时频资源集的符号个数，在监听控制信息的过程中，若已经在L个符号中重复监听到了控制信息，当L个符号等于第二指示信息指示的符号个数时，终端设备无须在其他时频资源上监听控制信息，有利于降低终端设备的负载。
表2
第二指示信息的取值 第二指示信息的含义
0 第二控制资源集不存在
1 第二控制资源集存在且占用1个符号
2 第二控制资源集存在且占用2个符号
3 第二控制资源集存在且占用3个符号
本申请实施例中，一个时间段的长度包括但不限于控制信息的一个发送周期、一个时隙、控制信息的一个发送周期内的不连续的多个时隙、连续的多个时隙、一个子帧、连续的多个子帧或控制信息的一个发送周期内的不连续的多个子帧等，具体此处不做限定，应当理解，本申请实施例中第二指示信息指示的第二时频资源集在时域上占用的符号个数，均指的是在一个时间段内，第二时频资源集在时域上占用的符号个数，为简化描述，后续对第二时频资源集在时域上占用的符号个数进行描述时，不再特别指出。
在第一时频资源集和第二时频资源集在时域上占用的符号数不超过三个的情况下，当第一时频资源集在时域上占用的符号数为1个时，第二指示信息可以通过三个不同的取值分别指示三种不同的含义，具体的，其中一个取值用于指示不存在第二时频资源集，另一 个取值用于指示存在第二时频资源集且第二时频资源集在时域上占用1个符号，另一个取值用于指示存在第二时频资源集且第二时频资源集在时域上占用2个符号，作为示例，参见如下表3，第二指示信息可以通过分别取值为0、1和2来指示不同的含义，其中，当第二指示信息取值为0时，指示不存在第二时频资源集；当第二指示信息取值为1时，指示存在第二时频资源集且第二时频资源集在时域上占用1个符号；当第二指示信息取值为2时，指示存在第二时频资源集且第二时频资源集在时域上占用2个符号。
表3
第二指示信息的取值 第二指示信息的含义
0 第二控制资源集不存在
1 第二控制资源集存在且占用1个符号
2 第二控制资源集存在且占用2个符号
3 保留
当第一时频资源集在时域上占用的符号数为2个时，第二指示信息可以通过三个不同的取值分别指示三种不同的含义，具体的，其中一个取值用于指示不存在第二时频资源集，另一个取值用于指示存在第二时频资源集且第二时频资源集在时域上占用1个符号，作为示例，参见如下表4，第二指示信息可以通过分别取值为0和1来分别指示两种不同的含义，当第二指示信息取值为0时，指示不存在第二时频资源集；当第二指示信息取值为1时，指示存在第二时频资源集且第二时频资源集在时域上占用1个符号。
表4
第二指示信息的取值 第二指示信息的含义
0 第二控制资源集不存在
1 第二控制资源集存在且占用1个符号
2 保留
3 保留
可选的，第二指示信息可以同时用于指示存在或者不存在第二时频资源集、第二时频资源集在时域上的位置以及第二时频资源在时域上所占用的符号个数。则第二指示信息也可以通过不同的取值分别指示多种不同的含义，作为一种实现方式，第二指示信息可以通过四个不同的取值分别表达四种不同含义，具体的，其中一个取值用于指示不存在第二时频资源集；另一个取值指示第二控制资源集与第一资源集在时域上位于不同时隙内；另一个取值指示第二控制资源集与第一资源集在时域上位于同一时隙内连续且不同的符号上，且占用1个符号；另一个取值指示第二控制资源集与第一资源集在时域上位于同一时隙内连续且不同的符号上，且占用2个符号，作为示例，参阅如下表5，第二指示信息可以分别取值为0、1、2和3，其中，当第二指示信息取值为0时，指示不存在第二时频资源集；当第二指示信息取值为1时，用于指示第二控制资源集与第一资源集在时域上位于不同时隙内；当第二指示信息取值为2时，用于指示第二控制资源集与第一资源集在时域上位于同一时隙内连续且不同的符号上，且占用2个符号；当第二指示信息取值为3时，用于指示第二控制资源集与第一资源集在时域上位于同一时隙内连续且不同的符号上，且占用1个符号。网络设备发送的第二指示信息不仅指示第二时频资源集的位置，还指示第二时频 资源集所占用的符号个数，从而终端设备可以结合第二指示信息对第二时频资源集进行精准定位，缩小了终端设备监听控制信息的范围，有利于降低终端设备的负载。
表5
Figure PCTCN2020072640-appb-000002
作为另一种实现方式，第二指示信息可以通过五个不同的取值分别表达四种不同含义，具体的，其中一个取值用于指示不存在第二时频资源集；另一个取值指示第二控制资源集与第一资源集在时域上位于不同时隙内，且占用1个符号；另一个取值指示第二控制资源集与第一资源集在时域上位于不同时隙内，且占用2个符号；另一个取值指示第二控制资源集与第一资源集在时域上位于同一时隙内连续且不同的符号上，且占用1个符号；另一个取值指示第二控制资源集与第一资源集在时域上位于同一时隙内连续且不同的符号上，且占用2个符号，作为示例，参阅如下表6，第二指示信息可以分别取值为0、1、2和3，其中，当第二指示信息取值为0时，指示不存在第二时频资源集；当第二指示信息取值为1时，用于指示第二控制资源集与第一资源集在时域上位于不同时隙内，且占用2个符号；当第二指示信息取值为2时，用于指示第二控制资源集与第一资源集在时域上位于不同时隙内，且占用1个符号；当第二指示信息取值为3时，用于指示第二控制资源集与第一资源集在时域上位于同一时隙内连续且不同的符号上，且占用2个符号；当第二指示信息取值为4时，用于指示第二控制资源集与第一资源集在时域上位于同一时隙内连续且不同的符号上，且占用1个符号。
表6
Figure PCTCN2020072640-appb-000003
应当理解，上述表1至表6中的举例仅为方便理解本方案，第二指示信息的取值和第二指示信息的含义的对应关系可以根据实际情况灵活设定，第二指示信息的取值也可以为其他数字，或者还可以通过其他取值来指示更多其他的含义，具体第二指示信息的取值和 表达的含义应当结合实际情况灵活确定，具体此处不做限定。
可选的，第二指示信息占用的比特位数量为不大于两个，由于PBCH中有2两个预留的比特位，所以当第二指示信息占用的比特位数量为不大于两个时，可以将第二指示信息放入PBCH中的两个预留比特位中，从而无须在PBCH中新加入比特，避免PBCH增加新的开销。
应当理解，本申请实施例不限定步骤201和步骤203的执行步骤，可以同时执行步骤201和步骤203；也可以先执行步骤201，再执行步骤203；也可以先执行步骤203，再执行步骤201。
204、网络设备在第一时频资源集中的第一时频资源上向终端设备发送控制信息。
本申请实施例中，网络设备可以在第一时频资源集中的第一时频资源上周期性的向终端设备发送控制信息。
205、终端设备根据第一指示信息确定第一时频资源集的位置。
206、终端设备在第一时频资源集中监听控制信息，以在第一时频资源集的第一时频资源上接收到网络设备发送的控制信息。
本申请实施例中，终端设备在获取到第一指示信息之后，也即获取到了第一时频资源集的位置，由于第一时频资源集中包含多个时频资源，终端设备在多个时频资源中的每个时频资源的位置上监听控制信息，从而在第一时频资源位置上接收到了网络设备发送的控制信息。
应当理解，本申请实施例不限定步骤203和步骤204至步骤206的执行顺序，可以先执行步骤203，再执行步骤204至步骤206；也可以先执行步骤204至步骤206，再执行步骤203。
207、在第二指示信息指示第二时频资源集存在的情况下，网络设备在第二时频资源集中的第二时频资源上向终端设备重复发送控制信息。
本申请实施例中，在第二指示信息指示存在第二时频资源集的情况下，网络设备可以在第二时频资源集的第二时频资源上向终端设备重复发送控制信息，网络设备可以采用周期性发送的方式向终端设备重复发送控制信息。
本申请实施例中，网络设备分别通过第一时频资源和第二时频资源向终端设备重复发送至少两份相同的控制信息，在5G-NR系统中定义了控制信道单元(control channel element，CCE)，一个CCE包括6个资源单元组(resource element group，REG)，在目前的5G-NR中，一个REG在时域上占用1个符号，在频域上占用12个子载波，一份控制信息可以承载在Q个CCE中，目前Q的取值为1、2、4、8或16中的一个，在5G-NR系统中，第一时频资源和第二时频资源均可以具体表现为多个连续或不连续的CCE，应当理解，第一时频资源和第二时频资源还可以利用其它时频资源单元进行说明，此处仅以在5G-NR系统中为例进行举例，具体第一时频资源和第二时频资源的大小及描述方式，可以结合实际情况灵活确定。
可选的，第一时频资源和第二时频资源占用的频域资源相同，从而网络设备可以在相同的频域上重复发送控制信息，有利于网络设备完成控制信息的重复发送操作，也有利于网络设备对时频资源的管理。
网络设备通过第一时频资源和第二时频资源重复发送控制信息的实现方式可以为多种。具体的，参阅图5a至图5c，图5a至图5c分别为本申请实施例提供的第一时频资源和第二时频资源的三种实现方式示意图，图5a至图5c均以每个编号所在的方块对应的时频资源单元为一个CCE，通过2个CCE可以承载一份完整的控制信息为例，进行说明。
作为一种实现方式，第一时频资源和第二时频资源在时域上占用的符号数相等，参阅图5a所示，在第一时频资源集在时域上占用1个符号，第二时频资源集在时域上占用2个符号的情况下，第一时频资源在时域上占用1个符号，第二时频资源在时域上也占用1个符号，第二时频资源集中包含两个第二时频资源，第一时频资源中两个编号为1的部分均为CCE1，所占时频资源的大小为一个CCE，第一时频资源中两个编号为2的部分均为CCE2，所占时频资源的大小为一个CCE，第一时频资源中两个编号为3的部分均为CCE3，所占时频资源的大小为一个CCE；第二时频资源集中的第一个符号(也即第一个第二时频资源)和第二个符号(也即第二个第二时频资源)均与第一时频资源的CCE划分方式相同。具体的，网络设备可以在第一时频资源的两个CCE1上分别发送控制信息的两个不同部分，在第一符号内的第二时频资源的两个CCE1上也分别发送控制信息的两个不同部分，在第二符号内的第二时频资源中的两个CCE1上也分别发送控制信息中的两个不同部分，也即，第二时频资源集中包含两个第二时频资源，且每个第二时频资源只占用1个符号，且在3个符号上发送第一控制信息的方式完全一致，以实现网络设备向终端设备发送3份相同的控制信息，从而终端设备可以接收到3份相同的控制信息，以提高终端设备接收到的控制信息的准确率。
作为另一种实现方式，第一时频资源和第二时频资源在时域上占用的符号数不相等，在频域上的划分方式相同，参阅图5b所示，在第一时频资源集在时域上占用1个符号，第二时频资源集在时域上占用2个符号的情况下，第一时频资源在时域上占用1个符号，第二时频资源在时域上占用2个符号，第一时频资源中两个编号为1的部分均为CCE1，所占时频资源的大小为一个CCE，第一时频资源中两个编号为2的部分均为CCE2，所占时频资源的大小为一个CCE，第一时频资源中两个编号为3的部分均为CCE3，所占时频资源的大小为一个CCE；第二时频资源在时域上占用的两个符号可以视为一个整体，即图5b中，第二时频资源中编号为1-1的部分为CCE4，所占时频资源的大小为两个CCE，第二时频资源中编号为2-1、3-1、1-2、2-2、3-2部分与编号为1-1的部分的划分方式相同。具体的，网络设备可以在第一时频资源的两个CCE1上分别发送控制信息的两个不同部分，在第二时频资源的编号为1-1的部分重复发送完整的控制信息，并在第二时频资源的编号为1-2的部分再次重复发送完整的控制信息，也即第一时频资源和第二时频资源在频域上的划分方式相同，但第二时频资源将时域上占用的两个符号视为一个整体，以实现网络设备向终端设备发送3份相同的控制信息。
作为另一种实现方式，第一时频资源和第二时频资源在时域上占用的符号数不相等，在频域上的划分方式也不相同，参阅图5c所示，在第一时频资源集在时域上占用1个符号，第二时频资源集在时域上占用2个符号的情况下，第一时频资源在时域上占用1个符号，第二时频资源在时域上占用2个符号，第一时频资源中两个编号为1的部分均为CCE1，所占时频资源的大小为一个CCE，第一时频资源中两个编号为2的部分均为CCE2， 所占时频资源的大小为一个CCE，第一时频资源中两个编号为3的部分均为CCE3，所占时频资源的大小为一个CCE；第二时频资源在时域上占用的两个符号也可以视为一个整体，但图5c所提供的实现方式中，第二时频资源在频域上与第一时频资源的划分方式也不同，参见图5c所示，第二时频资源中两个编号为1-1的部分均为CCE5，所占时频资源的大小为一个CCE，两个编号为1-2的部分均为CC6，与编号1-1的部分划分方式相同，第二时频资源中编号为2和编号为3的部分与编号为1-1的部分的划分方式也均相同，网络设备可以在第一时频资源的两个CCE1上分别发送控制信息的两个不同部分，在第二时频资源的两个CCE5上分别重复发送控制信息中的两个不同部分，在第二时频资源的两个CCE6上分别再次重复发送控制信息中的两个不同部分，也即，第二时频资源将时域上占用的两个符号视为一个整体，第二时频资源的每个时频资源单元在频域上的宽度为第一时频资源的每个时频资源单元在频域上的宽度的一半，以实现网络设备向终端设备发送3份相同的控制信息。
本申请实施例中，一份完整的控制信息也可以承载于4个、6个、8个、16个或其他数量的CCE种，应当理解，上述举例均仅为方便理解本方案中第一时频资源和第二时频资源的划分方式，一份完整的控制信息需要承载于几个CCE中，每份控制信息具体在哪几个CCE上传输，均可以结合实际情况灵活确定，此处均不做限定。
以上提供了第一时频资源和第二时频资源的三种不同的划分方式，以及网络设备通过第一时频资源和第二时频资源向终端设备发送控制信息的三种不同的实现方式，从而网络设备可以根据实际情况灵活确定发送控制信息的方式，提高了本方案的可实现性。
应当理解，本申请实施例不限定步骤204和步骤207的执行顺序，可以先执行步骤204，再执行步骤207，也可以同时执行步骤204和步骤207。
208、在第二指示信息指示第二时频资源集存在的情况下，当第二指示信息还指示第二时频资源集的位置的情况下，终端设备根据第二指示信息确定第二时频资源集的位置。
本申请实施例中，当第二指示信息还指示第二时频资源集的位置的情况下，终端设备在通过步骤203接收到网络设备发送的第二指示信息后，可以获知用于供网络设备向终端设备重复发送控制信息的第二时频资源存在或者不存在，还可以确定第二时频资源集的位置。
具体的，在一种实现方式中，第二指示信息指示第二时频资源集与第一时频资源集在时域上分别位于同一时隙内连续且不同的符号中，终端设备根据第二指示信息确定第二时频资源集与第一时频资源集在时域上分别位于同一时隙内连续且不同的符号上。
在另一种实现方式中，第二指示信息指示第二时频资源集与第一时频资源集在时域上分别位于不同的时隙内，终端设备根据第二指示信息确定第二时频资源集与第一时频资源集在时域上分别位于不同的时隙。
应当理解，步骤208为可选步骤，若第二指示信息指示第二时频资源集的位置，则步骤208存在；若第二指示信息不指示第二时频资源集的位置，则可以在执行完步骤207或步骤203之后直接执行步骤209。
209、终端设备重复监听控制信息，以在第二时频资源集中的第二时频资源上接收到网络设备重复发送的控制信息。
作为一种实现方式，在第二指示信息指示第二时频资源集存在，且第二指示信息不指示第二时频资源集的情况下，终端设备可以持续监听控制信息，以在第二时频资源集中的第二时频资源上接收到网络设备重复发送的控制信息。
作为另一种实现方式，在第二指示信息指示第二指示信息指示第二时频资源集与第一时频资源集在时域上分别位于同一时隙内连续且不同的符号中时，终端设备可以在第一时频资源集所在的时隙内持续监听控制信息，以接听到网络设备重复发送的控制信息，在终端设备根据第二指示信息获知第二时频资源集与第一时频资源集在时域上分别位于同一时隙内连续且不同的符号中的情况下，终端设备仅需在一个时隙内持续监听控制信息即可接收到至少两份重复的控制信息，从而减少了终端设备的工作负担。
作为另一种实现方式，在第二指示信息指示第二指示信息指示第二时频资源集与第一时频资源集在时域上分别位于不同的时隙内的情况下，终端设备可以持续监听控制信息，也可以在第一时频资源集的第一时频资源上监听到控制信息之后，停止监听，直至下一个时隙开始时再开始监听控制信息，直至在第二时频资源上接收到网络设备重复发送的控制信息。
应当理解，步骤207至步骤209均为可选步骤，在第二指示信息指示第二时频资源不存在的情况下，则不执行步骤207至步骤209，在第二指示信息指示第二时频资源存在的情况下，则执行步骤207至步骤209。
本申请实施例中，网络设备向终端设备发送第一指示信息，从而终端设备可以根据第一指示信息确定第一时频资源集，并在第一时频资源集的第一时频资源上获取到控制信息，网络设备还向终端设备发送第二指示信息，终端设备根据第二指示信息确定第二时频资源集存在不存在，在第二时频资源集存在的情况下，终端设备可以在第二时频资源集的第二时频资源上接收到网络设备重复发送的控制信息，则终端设备可以在控制信息一个传输周期内接收到至少两份相同的控制信息，从而提高了终端设备接收控制信息的正确率；此外，本方案中提供了重复发送控制信息的具体实现方式，提高了本方案的可实现性。
二、终端设备根据预设规则确定第二时频资源集
请参阅图6所示，为本申请实施例提供的网络设备和终端设备之间的另一种交互流程示意图，本申请实施例提供的信号发送方法可以包括：
601、网络设备向终端设备发送第一指示信息。
本申请实施例中，步骤601与图2所示实施例中的步骤201类似，此处不再赘述。
602、网络设备在第一时频资源集中的第一时频资源上向终端设备发送控制信息。
603、终端设备根据第一指示信息确定第一时频资源集的位置。
604、终端设备在第一时频资源集中监听控制信息，以在第一时频资源集的第一时频资源上接收到网络设备发送的控制信息。
本申请实施例中，步骤602至步骤604与图2所示实施例中的步骤203至步骤206类似，此处不再赘述。
605、终端设备根据第一时频资源集的位置和预设规则，确定第二时频资源集的位置。
本申请的一些实施例中，预设规则可以为第二时频资源集与第一时频资源集位于同一 时隙内连续且不同的符号上；或者参见图3所示，第二时频资源集与第一时频资源集之间相距X个时隙；或者第二时频资源集与第一时频资源集之间相距Y毫秒，从而在终端设备根据第一指示信息确定第一时频资源集的位置之后，可以结合预设规则确定第二时频资源的位置，其中，X和Y均为正数，在控制信息为DCI的情况下，Y小于20，由于在5G-NR系统中，PBCH指示的类型0的物理下行控制信道的发送周期为20毫秒，也即包含于类型0的物理下行控制信道中的DCI的发送周期也为20毫秒，从而当网络设备通过第二时频资源集中的第二时频资源向终端设备重复发送控制信息时，终端设备可以总共接收到至少两份相同的控制信息，从而提升了终端设备检测控制信息的成功率；此外，具体提供了预设规则的各种可能实现方式，提高了本方案的可实现性和可操作性。
可选的，预设规则还可以包含第二时频资源集在时域上占用的符号个数，在第一时频资源集和第二时频资源集在时域上占用的符号数不超过3个的情况下，具体的，预设规则还可以为第二时频资源集在时域上占用1个符号，或者预设规则还可以为第二时频资源集在时域上占用2个符号等，具体此处不做限定。
可选的，预设规则还可以包含第一时频资源与第二时频资源所占用的频域资源相同。
应当理解，终端设备上存储的预设规则可以为终端设备在出厂时配置于终端设备上的，也可以为由网络设备预先通过广播的方式发送给终端设备，还可以为其他方式等，具体此处不做限定。
606、网络设备判断是否满足预设的重复发送控制信息条件，若判断结果为是，则进入步骤607；若判断结果为否，则进入步骤608。
本申请实施例中，网络设备可以结合若干相关因素确定是否在第二时频资源集的第二时频资源上向终端设备重复发送控制信息，其中，相关因素包括但不限于网络设备与终端设备之间的距离或网络设备与终端设备之间的通信质量等。
具体的，作为一种实现方式，网络设备在终端设备接入网络的过程中，以及在后续与终端设备进行信息交互的过程中，可以获知终端设备的位置，从而当终端设备与网络设备的距离大于或等于第一预设阈值时，则网络设备在第二时频资源上向终端设备重复发送控制信息；当终端设备与网络设备的距离小于第一预设阈值时，则网络设备不在第二时频资源上向终端设备重复发送控制信息。
作为另一种实现方式，网络设备在与终端设备进行信息交互的过程中，可以获知网络设备与终端设备之间的通信质量，从而当网络设备与终端设备之间的通信质量低于或等于第二预设阈值时，则网络设备在第二时频资源上向终端设备重复发送控制信息；当网络设备与终端设备之间的通信质量高于第二预设阈值时，则网络设备不在第二时频资源上向终端设备重复发送控制信息。应当理解，上述举例仅为证明本方案的可行性，网络设备还可以结合其他因素来确定是否在第二时频资源位置上向终端设备重复发送控制信息，此处不再一一赘述。
607、网络设备在第二时频资源集的第二时频资源上向终端设备重复发送控制信息。
608、终端设备在第二时频资源集上重复监听控制信息。
本申请实施例中，无论网络设备是否在第二时频资源的第二时频资源上向终端设备发送控制信息，终端设备均在第二时频资源集包含的多个时频资源上监听控制信息。具体 的，在网络设备在第二时频资源集的第二时频资源上重复发送控制信息的情况下，终端设备在确定第二时频资源集的位置之后，可以在第二时频资源集上重复监听控制信息，从而接收到网络设备在第二时频资源集的第二时频资源上重复发送的控制信息；在网络设备不在第二时频资源集的第二时频资源上重复发送控制信息的情况下，则终端设备接收失败。
可选的，在预设规则指示第一时频资源与第二时频资源所占用的频域资源相同的情况下，则终端设备在确定第一时频资源在频域上的位置和第二时频资源集在时域上的位置之后，可以确定出第二时频资源的位置，从而终端设备可以在第二时频资源集的第二时频资源上重复监听控制信息，而无需在第二时频资源集包含的所有时频资源上监听控制信息了，从而降低终端设备的负载。
本申请实施例中，网络设备向终端设备发送第一指示信息，从而终端设备可以根据第一指示信息确定第一时频资源集，并在第一时频资源集的第一时频资源上获取到控制信息，网络设备还可以在满足预设的重复发送控制信息的情况下，在第二时频资源集中的第二时频资源上向终端设备重复发送控制信息，从而终端设备可以在第二时频资源集的第二时频资源上接收到网络设备重复发送的控制信息，则终端设备可以在控制信息一个传输周期内接收到至少两份相同的控制信息，从而提高了终端设备接收控制信息的正确率；此外，网络设备可以根据相关因素确定满足预设的重复发送控制信息条件的情况下才向终端设备重复发送控制信息，从而避免通信资源的浪费。
基于图2至图6所描述的实施例，参阅图7所示，为本申请实施例提供的网络设备和终端设备之间的又一种交互流程示意图，本申请实施例提供的信号发送方法可以包括：
701、网络设备确定M个用于承载第一信息的第一信号。
本申请实施例中，第一信息可以为网络设备向终端设备发送的任意数据，具体的，第一信息为未经过编码的原始数据，一般情况下，网络设备可以通过冗余编码的方式对第一信息进行编码，但也可以采取其他类型的编码方式，具体采用的编码方式应当结合实际情况灵活确定。
本申请实施例中，第一信号也可以称为第一数据信号，指的是用于承载数据的信号。M为大于1的整数，M个第一信号中每个第一信号所占用的时频资源的大小可以相同，M个第一信号中每个第一信号所占用的频域资源也可以相同，但M个第一信号中的任意两个第一信号占用的时域资源均不重叠，具体的，M个第一信号可以占用连续的M个时域资源，也可以占用不连续的M个时域资源，其中，M个时域资源中的每个时域资源的大小包括但不限于一个符号、多个符号、一个时隙、多个时隙、一个子帧或多个子帧等；M个第一信号中每个第一信号占用的频域资源的大小包括但不限于一个子载波或多个子载波等，每个第一信号所占用的时域资源的大小和频域资源的大小均可以根据实际情况灵活设定，具体此处不做限定。
702、网络设备向终端设备发送第三指示信息，第三指示信息指示与第一信号对应的参考信号的时频资源位置。
本申请实施例中，由于每个第一信号会关联一个参考信号，前述参考信号为网络设备和终端设备均已知的、用于辅助终端设备检测第一信号的信号，则终端设备在接收到第一信号之后，需要获取与第一信号对应的参考信号，进而对第一信号进行检测。而第三指示 信息用于指示与第一信号对应的参考信号的时频资源位置，具体的，第三指示信息可以指示与第一信号对应的参考信号的端口编号，也可以指示与第一信号对应的参考信号的时频资源的编号。本申请实施例中的参考信号可以具体表现为解调参考信号(demodulation reference signal，DMRS)，也可以表现为其他类型的参考信号，具体此处不做限定。
具体的，第三指示信息可以通过不同的取值指示不同的状态，在第三指示信息指示参考信号的端口编号的情况下，作为一种状态，第三指示信息指示M个第一信号对应的M个参考信号的端口编号均相同。
作为另一种状态，网络设备上存在至少两个用于发送参考信号的端口，则网络设备可以采用端口轮询的方式执行参考信号的M次发送操作，第三指示信息指示网络设备采用端口轮询的方式执行与M个第一信号对应的M个参考信号的M次发送操作，也即，M次参考信号的发送操作中任意两次相邻的参考信号发送操作中所采用的端口编号均不相同。
具体的，在用于发送参考信号的端口的个数为两个的情况下，第三指示信息可以指示M个参考信号中第2i-1个参考信号的发送端口的编号相同，第2i个参考信号的发送端口的编号相同，而第2i-1个参考信号的发送端口的编号与第2i个参考信号的发送端口的编号不同，其中，i为大于等于1且小于等于M/2的正整数。作为示例，例如参考信号为DMRS，M的取值为8，网络设备上存在端口0和端口2用于发送DMRS，网络设备执行8次DMRS发送操作所采用的端口分别为端口0、端口2、端口0、端口2、端口0、端口2、端口0和端口2。
在用于发送参考信号的端口的个数为四个的情况下，第三指示信息指示M个参考信号中第4l-3个参考信号的发送端口的编号相同，第4l-2个参考信号的发送端口的编号相同，第4l-1个参考信号的发送端口的编号相同，第4l个参考信号的发送端口的编号相同，而第4l-3个参考信号、第4l-2个参考信号、第4l-1个参考信号和第4l个参考信号的发送端口的编号互不相同，其中，l为大于等于1且小于等于M/4的正整数。作为示例，例如参考信号为DMRS，M的取值为8，网络设备上存在端口0、端口2、端口4和端口6用于发送DMRS，网络设备执行8次DMRS发送操作所采用的端口分别为端口0、端口2、端口4、端口6、端口0、端口2、端口4和端口6。
在第三指示信息指示参考信号的时频资源编号的情况下，作为一种状态，第三指示信息指示用于发送与M个第一信号对应的M个参考信号的时频资源的编号均相同。
作为另一种状态，网络设备上存在至少两组用于发送参考信号的时频资源，则网络设备可以采用时频资源轮询的方式执行参考信号的M次发送操作，第三指示信息指示网络设备采用时频资源轮询的方式执行与M个第一信号对应的M个参考信号的M次发送操作，也即，M次参考信号的发送操作中任意两次相邻的参考信号发送操作中所采用的时频资源的编号均不相同。
具体的，在通过两组时频资源发送参考信号的情况下，第三指示信息可以指示M个参考信号中用于发送第2m-1个参考信号的时频资源的编号相同，用于发送第2m个参考信号的时频资源的编号相同，而用于发送第2m-1个参考信号的时频资源的编号与用于发送第2m个参考信号的时频资源的编号不同，其中，m为大于等于1且小于等于M/2的正整数。作为示例，例如参考信号为DMRS，M的取值为8，网络设备上存在分别编号为时频资源0 和时频资源2的两组时频资源来发送DMRS，网络设备执行8次DMRS发送操作所采用的时频资源分别为时频资源0、时频资源2、时频资源0、时频资源2、时频资源0、时频资源2、时频资源0和时频资源2。
在通过四组时频资源发送参考信号的情况下，第三指示信息可以指示M个参考信号中用于发送第4n-3个参考信号的时频资源的编号相同，用于发送第4n-2个参考信号的时频资源的编号相同，用于发送第4n-1个参考信号的时频资源的编号相同，用于发送第4n个参考信号的时频资源的编号相同，而用于发送第4n-3个参考信号、第4n-2个参考信号、第4n-1个参考信号和第4n个参考信号的时频资源的编号互不相同，其中，n为大于等于1且小于等于M/4的正整数。作为示例，例如参考信号为DMRS，M的取值为8，网络设备上存在分别编号为时频资源0、时频资源2、时频资源4和时频资源6的四组时频资源来发送DMRS，网络设备执行8次DMRS发送操作所采用的时频资源分别为时频资源0、时频资源2、时频资源4、时频资源6、时频资源0、时频资源2、时频资源4和时频资源6。
应理解，第三指示信息的功能在于指示与M个第一信号对应的M个参考信号的时频资源的位置，上述举例均仅为方便理解本方案，具体端口编号、时频资源的编号、第三指示信息的具体内容，此处不进行限定。
可选的，第三指示信息可以包含于图2至图6所描述的实施例中的控制信息中，由网络设备发送给终端设备。具体的，作为一种实现方式，网络设备可以通过图2所示实施例中的步骤201至步骤209向终端设备发送第三指示信息；作为另一种实现方式，网络设备也可以通过图6所示实施例中的步骤601至步骤608向终端设备发送第三指示信息；作为另一种实现方式，网络设备也可以通过图2所示实施例中步骤201、步骤204至步骤206向终端设备发送第三指示信息，由于图2所示实施例以及图6所示实施例中已经对前述步骤进行了详细描述，此处不再一一赘述。
703、网络设备确定M个第二信息，其中，M个第二信息中任一第二信息为对第一信息进行编码后的信息。
本申请实施例中，第二信息为第一信息进行编码后的数据，也即第二信息中包含第一信息。在采用的编码方式为冗余编码的情况下，第二信息为对第一信息进行冗余编码后的信息。具体的，网络设备可以根据N种冗余版本(redundant version，RV)对第一信息进行M次冗余编码，获得M个第二信息，其中，两个相邻的第二信息之间可以采用相同的冗余版本，也可以采用不同的冗余版本，当冗余版本不同时，对第一信息进行冗余编码之后获得的第二信息可以不同，其中，N为大于1且小于M的整数，M为N的整数倍。
可选的，本申请实施例提供的信号发送方法还可以包括：网络设备向终端设备发送第四指示信息，第四指示信息用于指示与第一信号中承载的第二信息对应的冗余版本。
具体的，第四指示信息也可以通过不同的取值表示在M次第二信息发送操作过程中，N个冗余版本的重复方式。作为一种冗余版本的重复方式，网络设备执行两次相邻的第二信息发送操作时至少存在相同的冗余版本，具体的，第四指示信息指示所述M个第二信息中第1至M/N个第二信息的冗余版本相同，第M/N+1至2M/N个第二信息的冗余版本相同，第2M/N+1至3M/N个第二信息的冗余版本相同，第3M/N+1至M个第二信息的冗余版本相同，而第1至M/N个第二信息、第M/N+1至2M/N个第二信息、第2M/N+1至3M/N个第二信 息和第3M/N+1至M个第二信息的冗余版本互不相同。作为示例，例如M的取值为12，N的取值为4，N种冗余版本的取值顺序分别为0、2、1和3，则冗余版本的取值可以依次为0、0、0、2、2、2、1、1、1、3、3和3。
作为另一种冗余版本的重复方式，网络设备执行任意两次相邻的第二信息发送操作时的冗余版本均不相同，作为一种示例，冗余版本可以存在两种取值，第四指示信息指示所述M个第二信息中第2p-1个第二信息的冗余版本相同，第2p个第二信息的冗余版本相同，而第2p-1个第二信息与第2p个第二信息的冗余版本不同，其中，p为大于等于1且小于等于M/2的正整数，作为示例，例如M的取值为12，N的取值为2，2种冗余版本的取值顺序分别为0、2，则冗余版本的取值可以依次为0、2、0、2、0、2、0和2。
作为另一种示例，冗余版本可以存在四种取值，第四指示信息指示所述M个第二信息中第4q-3个第二信息的冗余版本相同，第4q-2个第二信息的冗余版本相同，第4q-1个第二信息的冗余版本相同，第4q个第二信息的冗余版本相同，而第4q-3个第二信息、第4q-2个第二信息、第4q-1个第二信息和第4q个第二信息的冗余版本互不相同，其中，q为大于等于1且小于等于M/4的正整数，作为示例，例如M的取值为12，N的取值为4，4种冗余版本的取值顺序分别为0、2、1和3，则冗余版本的取值可以依次为0、2、1、3、0、2、1、3、0、2、1和3。
应当理解，上述对于M和N的举例，以及冗余版本的N种取值的取值顺序的举例仅为方便理解本方案，具体M和N的取值以及冗余版本的N种取值的取值顺序应当结合实际环境需求灵活确定，此处不进行限定。
或者，作为一种实现方式，网络设备执行两次相邻的参考信号发送操作时至少存在相同的冗余版本，作为示例，例如M的取值为12，N的取值为4，4种冗余版本的取值顺序分别为0、2、1和3，则冗余版本的取值可以依次为0、0、0、2、2、2、1、1、1、3、3和3。
可选的，第四指示信息可以包含于图2至图6所描述的实施例中的控制信息中，由网络设备发送给终端设备。具体的，作为一种实现方式，网络设备可以通过图2所示实施例中的步骤201至步骤209向终端设备发送第三指示信息；作为另一种实现方式，网络设备也可以通过图6所示实施例中的步骤601至步骤608向终端设备发送第三指示信息；作为另一种实现方式，网络设备也可以通过图2所示实施例中步骤201、步骤204至步骤206向终端设备发送第三指示信息，由于图2所示实施例以及图6所示实施例中已经对前述步骤进行了详细描述，此处不再一一赘述。
应当理解，本申请实施例不限定步骤702和步骤703的执行顺序，可以先执行步骤702，再执行步骤703；也可以先执行步骤703，再执行步骤702；还可以同时执行步骤702和步骤703。
704、网络设备将M个第二信息分别承载在M个第一信号上发送给终端设备。
本申请实施例中，网络设备在中确定了用于执行当前数据传输操作的M个第一信号之后，可以根据N种冗余版本和第一信息，确定需要发送的M个第二信息，并将M个第二信息分别承载在M个第一信号上发送给终端设备。具体的，网络设备可以根据M个第一信号在时域上的位置对M个第一信号进行排序，从而逐次利用M个第一信号中的每个第一信号 向终端设备发送第二信息，也可以通过其他方式将M个第二信息分别承载在M个第一信号上发送给终端设备，此处不再一一赘述。
705、终端设备接收第三指示信息，并根据第三指示信息确定与M个第一信号中每个第一信号对应的参考信号的时频资源位置。
本申请实施例中，终端设备可以根据第三指示信息确定与M个第一信号中每个第一信号对应的参考信号的时频资源位置，则在接收到第一信号之后，可以结合第三指示信息确定发送参考信号的时频资源位置，从而终端设备可以在根据第三指示信息确定的时频资源位置上监听参考信号，提高了接收参考信号的成功率，进而能够提升终端设备的信道估计精度，提升传输的可靠性。
应当理解，步骤702为可选步骤，若步骤702不存在，则步骤705也不存在，则可以在执行完步骤701之后，执行步骤703，在执行完步骤704之后，执行步骤706。
706、终端设备接收M个第一信号中的至少一个第一信号，以获取第一信息。
本申请实施例中，终端设备可以接收M个第一信号中的至少一个第一信号，获取所述一个第一信号上承载的第二信息后，对第二信息进行解码，以获取第一信息。可选的，终端设备从网络设备接收第四指示信息，并根据第四指示信息确定与M个第二信息中每个第二信息对应的冗余版本。
本申请实施例中，终端设备可以根据第四指示信息确定接收到的M个第二信息中的每个第二信息对应的冗余版本，则终端设备在每次接收到第二信息之后，可以根据接收到的第二信息对应的冗余版本对第二信息进行解码，以获取第一信息。进一步的，终端设备可以根据M个第二信息进行联合解码，以提升成功获取第一信息的概率，提升传输的可靠性。
应当理解，本申请实施例不限定步骤705和步骤706的执行顺序，可以先执行步骤705，再执行步骤706；也可以先执行步骤706，再执行步骤705。
基于图2至图7所描述的实施例，参阅图8所示，为本申请实施例提供的网络设备和终端设备之间的又一种交互流程示意图，本申请实施例提供的信号发送方法也可以包括：
801、终端设备确定M个第四信息，其中，M个第四信息中任一第四信息为对第三信息进行编码后的信息。
本申请实施例中，第三信息可以为终端设备向网络设备发送的任意数据，具体的，第三信息为未经过编码的原始数据，一般情况下，终端设备可以通过冗余编码的方式对第三信息进行编码，但也可以采取其他类型的编码方式，具体此处不做限定。
更具体的，在采用的编码方式为冗余编码的情况下，终端设备可以根据N种冗余版本(redundant version，RV)对第三信息进行M次冗余编码，获得M个第四信息，其中，两个相邻的第四信息之间可以采用相同的冗余版本，也可以采用不同的冗余版本，当冗余版本不同时，对第一信息进行冗余编码之后获得的第二信息可以不同，其中，N为大于1且小于M的整数，M为N的整数倍。
802、终端设备将M个第四信息分别承载在M个第二信号上发送给网络设备。
本申请实施例中，步骤802与图7所描述实施例中步骤704类似，区别仅在于步骤704中的第一信号承载的是网络设备发送给终端设备的数据，步骤802中第二信号承载的是终 端设备发送给网络设备的数据，此处不再赘述。
可选的，本申请实施例提供的信号发送方法还可以包括：终端设备向网络设备发送第六指示信息，第六指示信息用于指示与第二信号中承载的第四信息对应的冗余版本。
本申请实施例中，第五指示信息的具体表现形式可以参见图7所描述的实施例中步骤703中对第四指示信息的描述，此处不再赘述。
803、网络设备接收M个第二信号中的至少一个第二信号。
本申请实施例中，步骤803与图7所描述实施例中步骤706类似，此处不再赘述。
804、网络设备向终端设备发送第五指示信息，第五指示信息用于指示与M个第二信号中的每个第二信号对应的参考信号的时频资源位置。
805、终端设备接收第五指示信息，并根据第五指示信息确定与M个第二信号中每个第二信号对应的参考信号的时频资源位置。
本申请实施例中，步骤804和步骤805分别与图7所描述的实施例中的步骤702和步骤705类似，区别仅在于步骤702中的第三指示信息指示的是每个第一信号对应的参考信号的时频资源位置，步骤801中的第五指示信息指示的是每个第二信号对应的参考信号的时频资源的位置，此处不再赘述。
应当理解，本申请实施例不限定步骤801至803与步骤804至805的执行顺序，可以先执行步骤801至803，再执行步骤804至805；也可以先执行步骤804至805，再执行步骤801至803。
本申请实施例中，提供了在待发送的数据为终端设备发送给网络设备的情况下的具体实现方案，拓宽了本方案的应用场景。
为了更好的实施本申请实施例的上述方案，下面还提供用于实施上述方案的相关装置。
具体参阅图9，图9为本申请实施例提供的网络设备的一种结构示意图，通信装置900包括发送单元901：
发送单元901，用于向终端设备发送第一指示信息，第一指示信息用于指示第一时频资源集；
发送单元901，还用于向终端设备发送第二指示信息，第二指示信息用于指示第二时频资源集存在或不存在；
发送单元901，还用于在第一时频资源集中的第一时频资源上向终端设备发送控制信息；
发送单元901，还用于在第二指示信息指示第二时频资源集存在的情况下，在第二时频资源集中的第二时频资源上向终端设备发送控制信息，第二时频资源集包含的多个时频资源中包含第二时频资源，其中，第一时频资源集和第二时频资源集在时域上可以归属于控制信息的同一个传输周期内。
本申请实施例中，发送单元901向终端设备发送第一指示信息，从而终端设备可以根据第一指示信息确定第一时频资源集，并在第一时频资源集的第一时频资源上获取到控制信息，发送单元901还向终端设备发送第二指示信息，终端设备根据第二指示信息确定第二时频资源集存在不存在，在第二时频资源集存在的情况下，终端设备可以在第二时频资 源集的第二时频资源上接收到网络设备重复发送的控制信息，则终端设备可以在控制信息一个传输周期内接收到至少两份相同的控制信息，从而提高了终端设备接收控制信息的正确率；此外，本方案中提供了重复发送控制信息的具体实现方式，提高了本方案的可实现性。
在一种可能的设计中，通信装置900还可以包括确定单元902，确定单元902用于：
根据相关因素确定向终端设备发送的第二指示信息的指示类型，其中，相关因素可以包括网络设备与终端设备之间的距离或者网络设备与终端设备之间的通信质量，第二指示信息的指示类型包含第二时频资源集存在和第二时频资源不存在。
在一种可能的设计中，第一时频资源集与第二时频资源集在时域上分别位于同一个时隙内连续且不同的符号上。
在一种可能的设计中，第一时频资源集与第二时频资源集在时域上占用的符号数不超过三个。
在一种可能的设计中，第一时频资源集在时域上占用一个符号，第二时频资源集在时域上占用一个或两个符号。
在一种可能的设计中，在第二指示信息指示存在第二时频资源集的情况下，第二指示信息还指示第二时频资源集与第一时频资源集在时域上分别位于同一时隙内连续且不同的符号上；或者，在第二指示信息指示存在第二时频资源集的情况下，第二指示信息还用于指示第二时频资源集与第一时频资源集在时域上分别位于不同的时隙。
在一种可能的设计中，在第二指示信息指示存在第二时频资源集的情况下，第二指示信息还用于指示第二时频资源集在一个时间段内在时域上所占用的符号个数。
在一种可能的设计中，在第二指示信息指示第二时频资源集与第一时频资源集在时域上分别位于同一时隙内连续且不同的符号上的情况下，第二指示信息还指示第二时频资源集在时域上所占用的符号个数；或者，在第二指示信息指示第二时频资源集与第一时频资源集在时域上分别位于不同的时隙的情况下，第二指示信息还指示第二时频资源集在时域上所占用的符号个数。
在一种可能的设计中，第一时频资源和第二时频资源占用的频域资源相同。
在一种可能的设计中，第一时频资源和第二时频资源在时域上占用的符号数相等。
具体参阅图10，图10为本申请实施例提供的终端设备的一种结构示意图，通信装置1000包括接收单元1001。
接收单元1001，用于接收网络设备发送的第一指示信息，第一指示信息用于指示第一时频资源集；
接收单元1001，还用于接收网络设备发送的第二指示信息，第二指示信息用于指示第二时频资源集存在或不存在；
接收单元1001，还用于在第一时频资源集的第一时频资源上接收网络设备发送的控制信息；
接收单元1001，还用于在第二指示信息指示第二时频资源集存在的情况下，在第二时频资源集的第二时频资源上接收网络设备发送的控制信息，其中，第一时频资源集和第二时频资源集在时域上可以归属于控制信息的同一个传输周期内。
本申请实施例中，接收单元1001可以接收到网络设备发送的第一指示信息，从而根据第一指示信息的指示在第一时频资源集的第一时频资源上接收到控制信息，接收单元1001还可以接收到网络设备发送的第二指示信息，在第二指示信息指示第二时频资源集存在的情况下，可以在第二时频资源集的第二时频资源中重复接收到控制信息，则终端设备可以在控制信息一个传输周期内接收到至少两份相同的控制信息，从而提高了终端设备接收控制信息的正确率；此外，本方案中提供了重复发送控制信息的具体实现方式，提高了本方案的可实现性。
在一种可能的设计中，第一时频资源集与第二时频资源集在时域上分别位于同一个时隙内连续且不同的符号上。
在一种可能的设计中，第一时频资源集与第二时频资源集在时域上占用的符号数不超过三个。
在一种可能的设计中，第一时频资源集在时域上占用一个符号，第二时频资源集在时域上占用一个或两个符号。
在一种可能的设计中，在第二指示信息指示存在第二时频资源集的情况下，第二指示信息还指示第二时频资源集与第一时频资源集在时域上分别位于同一时隙内连续且不同的符号上；或者，在第二指示信息指示存在第二时频资源集的情况下，第二指示信息还用于指示第二时频资源集与第一时频资源集在时域上分别位于不同的时隙。
在一种可能的设计中，在第二指示信息指示存在第二时频资源集的情况下，第二指示信息还用于指示第二时频资源集在一个时间段内在时域上所占用的符号个数。
在一种可能的设计中，在第二指示信息指示第二时频资源集与第一时频资源集在时域上分别位于同一时隙内连续且不同的符号上的情况下，第二指示信息还指示第二时频资源集在时域上所占用的符号个数；或者，
在第二指示信息指示第二时频资源集与第一时频资源集在时域上分别位于不同的时隙的情况下，第二指示信息还指示第二时频资源集在时域上所占用的符号个数。
在一种可能的设计中，第一时频资源和第二时频资源占用的频域资源相同。
在一种可能的设计中，第一时频资源和第二时频资源在时域上占用的符号数相等。
具体参阅图11，图11为本申请实施例提供的网络设备的一种结构示意图，通信装置1100包括发送单元1101。
发送单元1101，用于向终端设备发送包含第一指示信息，第一指示信息用于指示第一时频资源集；
发送单元1101，还用于在第一时频资源集中的第一时频资源上向终端设备发送控制信息；
发送单元1101，还用于根据相关因素确定满足预设的重复发送控制信息条件的情况下，在第二时频资源集中的第二时频资源上向终端设备重复发送控制信息；
其中，第二时频资源集包含的多个时频资源中包含第二时频资源，第一时频资源集和第二时频资源集在时域上可以归属于控制信息的同一个传输周期内，相关因素包括网络设备与终端设备之间的距离或者网络设备与终端设备之间的通信质量。
本申请实施例中，发送单元1101向终端设备发送第一指示信息，从而终端设备可以 根据第一指示信息确定第一时频资源集，并在第一时频资源集的第一时频资源上获取到控制信息，发送单元1101还可以在满足预设的重复发送控制信息的情况下，在第二时频资源集中的第二时频资源上向终端设备重复发送控制信息，从而终端设备可以在第二时频资源集的第二时频资源上接收到网络设备重复发送的控制信息，则终端设备可以在控制信息一个传输周期内接收到至少两份相同的控制信息，从而提高了终端设备接收控制信息的正确率；此外，网络设备可以根据相关因素确定满足预设的重复发送控制信息条件的情况下才向终端设备重复发送控制信息，从而避免通信资源的浪费。
在一种可能的设计中，预设的重复发送控制信息条件包含网络设备与终端设备之间的距离大于或等于第一预设阈值和/或网络设备与终端设备之间的通信质量低于或等于第二阈值。
在一种可能的设计中，第一时频资源集与第二时频资源集在时域上分别位于同一个时隙内连续且不同的符号上。
在一种可能的设计中，第一时频资源集与第二时频资源集在时域上占用的符号数不超过三个。
在一种可能的设计中，第一时频资源集在时域上占用一个符号，第二时频资源集在时域上占用一个或两个符号。
在一种可能的设计中，第一时频资源和第二时频资源占用的频域资源相同。
在一种可能的设计中，第一时频资源和第二时频资源在时域上占用的符号数相等。
具体参阅图12，图12为本申请实施例提供的终端设备的一种结构示意图，通信装置1200包括接收单元1201和确定单元1202。
接收单元1201，用于接收网络设备发送的第一指示信息，第一指示信息用于指示第一时频资源集；
接收单元1201，还用于在第一时频资源集的第一时频资源上接收网络设备发送的控制信息；
确定单元1202，用于根据第一时频资源集和预设规则，确定第二时频资源集的位置；
接收单元1201，还用于在网络设备在第二时频资源集的第二时频资源上重复发送控制信息的情况下，在第二时频资源集的第二时频资源上接收到网络设备重复发送的控制信息；
其中，第二时频资源集包含的多个时频资源中包含第二时频资源，第一时频资源集和第二时频资源集在时域上可以归属于控制信息的同一个传输周期内。
本申请实施例中，接收单元1201可以接收到网络设备发送的第一指示信息，从而根据第一指示信息的指示在第一时频资源集的第一时频资源上接收到控制信息，确定单元1202还可以根据预设规则确定第二时频资源集的位置，并在第二时频资源集上重复监听控制信息，则在网络设备在第二时频资源集的第二时频资源上重复发送控制信息的情况下，终端设备可以在第二时频资源上接收到网络设备重复发送的控制信息，则终端设备可以在控制信息一个传输周期内接收到至少两份相同的控制信息，从而提高了终端设备接收控制信息的正确率。
在一种可能的设计中，预设规则可以包含第二时频资源集与第一时频资源集位于同一 时隙内连续且不同的符号上，或者第二时频资源集与第一时频资源集之间相距X个时隙，或者第二时频资源集与第一时频资源集之间相距Y毫秒。
在一种可能的设计中，第一时频资源集与第二时频资源集在时域上分别位于同一个时隙内连续且不同的符号上。
在一种可能的设计中，第一时频资源集与第二时频资源集在时域上占用的符号数不超过三个。
在一种可能的设计中，第一时频资源集在时域上占用一个符号，第二时频资源集在时域上占用一个或两个符号。
在一种可能的设计中，预设规则还可以包含第二时频资源集在时域上占用的符号个数。
在一种可能的设计中，预设规则还可以包含第一时频资源与第二时频资源所占用的频域资源相同。
在一种可能的设计中，第一时频资源和第二时频资源在时域上占用的符号数相等。
需要说明的是，上述装置各模块/单元之间的信息交互、执行过程等内容，由于与本申请方法实施例基于同一构思，其带来的技术效果与本申请方法实施例相同，具体内容可参见本申请前述所示的方法实施例中的叙述，此处不再赘述。
接下来介绍本申请实施例提供的另一种通信装置，请参阅图13所示，为本申请实施例提供的通信装置的一种结构示意图，该通信装置可以是网络设备也可以是终端设备也可以是电路。该通信装置可以用于执行上述方法实施例中由网络设备或终端设备所执行的动作。
当该通信装置为网络设备或终端设备时，图13示出了一种简化的通信装置的结构示意图。便于理解和图示方便，图13中，通信装置以手机作为例子。如图13所示，通信装置包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对通信装置进行控制，执行软件程序，处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是，有些种类的通信装置可以不具有输入输出装置。
当需要发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到通信装置时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。为便于说明，图13中仅示出了一个存储器和处理器。在实际的通信装置产品中，可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置，也可以是与处理器集成在一起，本申请实施例对此不做限制。
在本申请实施例中，可以将具有收发功能的天线和射频电路视为通信装置的收发单元，将具有处理功能的处理器视为通信装置的处理单元。如图13所示，通信装置包括收发单元1310、处理单元1320和输入输出装置1330。收发单元也可以称为收发器、收发机、收发 装置等。处理单元也可以称为处理器，处理单板，处理模块、处理装置等。可选的，可以将收发单元1310中用于实现接收功能的器件视为接收单元，将收发单元1310中用于实现发送功能的器件视为发送单元，即收发单元1310包括接收单元和发送单元。收发单元有时也可以称为收发机、收发器、或收发电路等。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。
应理解，收发单元1310用于执行上述方法实施例中终端设备侧或网络设备侧的发送操作和接收操作，处理单元1320用于执行上述方法实施例中终端设备或网络设备侧上除了收发操作之外的其他操作。
例如，在一种实现方式中，收发单元1310用于执行图2中的步骤201、步骤203、步骤204、步骤205中网络设备侧的发送操作，和/或收发单元1310还用于执行本申请实施例中网络设备侧的其他收发步骤。处理单元1320用于执行图2中的步骤202，和/或处理单元1320还用于执行本申请实施例中网络设备侧的其他处理步骤。
再例如，在另一种实现方式中，收发单元1310用于执行图2中的步骤201、步骤203、步骤206、步骤209中终端设备侧的接收操作，和/或收发单元1320还用于执行本申请实施例中终端设备侧的其他收发步骤。处理单元1320用于执行图2中的步骤205、步骤208，和/或处理单元1320还用于执行本申请实施例中终端设备侧的其他处理步骤。
又例如，在再一种实现方式中，收发单元1310用于执行图6中的步骤601、步骤602、步骤607中网络设备侧的发送操作，和/或收发单元1310还用于执行本申请实施例中网络设备侧的其他收发步骤。处理单元1320用于执行图6中的步骤606，和/或处理单元1320还用于执行本申请实施例中网络设备侧的其他处理步骤。
又例如，在再一种实现方式中，收发单元1310用于执行图6中的步骤601、步骤604、步骤608中终端设备侧的接收操作，和/或收发单元1310还用于执行本申请实施例中终端设备侧的其他收发步骤。处理单元1320用于执行图6中的步骤603、步骤605，和/或处理单元1320还用于执行本申请实施例中终端设备侧的其他处理步骤。
又例如，在再一种实现方式中，收发单元1310用于执行图7中的步骤702、步骤703、步骤704中网络设备侧的发送操作，和/或收发单元1310还用于执行本申请实施例中网络设备侧的其他收发步骤。处理单元1320用于执行图7中的步骤701，和/或处理单元1320还用于执行本申请实施例中网络设备侧的其他处理步骤。
又例如，在再一种实现方式中，收发单元1310用于执行图7中的步骤702、步骤703、步骤704中终端设备侧的接收操作，和/或收发单元1310还用于执行本申请实施例中终端设备侧的其他收发步骤。处理单元1320用于执行图7中的步骤705、步骤706、步骤707，和/或处理单元1320还用于执行本申请实施例中终端设备侧的其他处理步骤。
又例如，在再一种实现方式中，收发单元1310用于执行图8中的步骤802和步骤804中网络设备侧的发送操作，和/或收发单元1310还用于执行本申请实施例中网络设备侧的其他收发步骤。处理单元1320用于执行图8中的步骤801、步骤803，和/或处理单元1320还用于执行本申请实施例中网络设备侧的其他处理步骤。
又例如，在再一种实现方式中，收发单元1310用于执行图8中的步骤802和步骤804中终端设备侧的接收操作，和/或收发单元1310还用于执行本申请实施例中终端设备侧的 其他收发步骤。处理单元1320用于执行图8中的步骤805，和/或处理单元1320还用于执行本申请实施例中终端设备侧的其他处理步骤。
当该通信装置为芯片时，该芯片包括收发单元和处理单元。其中，收发单元可以是输入输出电路、通信接口；处理单元为该芯片上集成的处理器或者微处理器或者集成电路。
本实施例中的通信装置为终端设备时，可以参照图14所示的设备。作为一个例子，该设备可以完成类似于图13中处理器的功能。在图14中，该设备包括处理器1410，发送数据处理器1420，接收数据处理器1430。上述实施例中的处理单元1320可以是图14中的该处理器1410，并完成相应的功能。上述实施例中的收发单元1310可以是图14中的发送数据处理器1420，和/或接收数据处理器1430。虽然图14中示出了信道编码器、信道解码器，但是可以理解这些模块并不对本实施例构成限制性说明，仅是示意性的。
图15示出本实施例的另一种形式。处理装置1500中包括调制子系统、中央处理子系统、周边子系统等模块。本实施例中的通信装置可以作为其中的调制子系统。具体的，该调制子系统可以包括处理器1501，接口1502。其中处理器1501完成上述处理单元1320的功能，接口1502完成上述收发单元1310的功能。作为另一种变形，该调制子系统包括存储器1503、处理器1501及存储在存储器1503上并可在处理器上运行的程序，该处理器1501执行该程序时实现上述方法实施例中终端设备侧的方法。需要注意的是，存储器1503可以是非易失性的，也可以是易失性的，其位置可以位于调制子系统内部，也可以位于处理装置1500中，只要该存储器1503可以连接到处理器1501即可。
本申请实施例中还提供一种计算机可读存储介质，该计算机可读存储介质中存储有信号处理的指令，当其在计算机上运行时，使得计算机执行如前述图2至图8所示实施例描述的方法中网络设备所执行的步骤。
本申请实施例中还提供一种计算机可读存储介质，该计算机可读存储介质中存储有信号处理的指令，当其在计算机上运行时，使得计算机执行如前述图2至图8所示实施例描述的方法中终端设备所执行的步骤。
本申请实施例中还提供一种包含有信号处理指令的计算机程序产品，当其在计算机上运行时，使得计算机执行如前述图2至图8所示实施例描述的方法中网络设备所执行的步骤。
本申请实施例中还提供一种包含有信号处理指令的计算机程序产品，当其在计算机上运行时，使得计算机执行如前述图2至图8所示实施例描述的方法中终端设备所执行的步骤。
其中，上述任一处提到的处理器，可以是一个通用中央处理器，微处理器，ASIC，或一个或多个用于控制上述第一方面方法的程序执行的集成电路。
本申请实施例中还提供一种芯片系统，该芯片系统包括处理器，用于支持网络设备实现上述方面中所涉及的功能，例如，例如发送或处理上述方法中所涉及的数据和/或信息。在一种可能的设计中，所述芯片系统还包括存储器，所述存储器，用于保存网络设备必要的程序指令和数据。该芯片系统，可以由芯片构成，也可以包括芯片和其他分立器件。
另外需说明的是，以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以 不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。另外，本申请提供的装置实施例附图中，模块之间的连接关系表示它们之间具有通信连接，具体可以实现为一条或多条通信总线或信号线。
通过以上的实施方式的描述，所属领域的技术人员可以清楚地了解到本申请可借助软件加必需的通用硬件的方式来实现，当然也可以通过专用硬件包括专用集成电路、专用CPU、专用存储器、专用元器件等来实现。一般情况下，凡由计算机程序完成的功能都可以很容易地用相应的硬件来实现，而且，用来实现同一功能的具体硬件结构也可以是多种多样的，例如模拟电路、数字电路或专用电路等。但是，对本申请而言更多情况下软件程序实现是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在可读取的存储介质中，如计算机的软盘、U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等，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)执行本申请各个实施例所述的方法。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。
所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存储的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。

Claims (32)

  1. 一种信号发送方法，其特征在于，所述方法包括：
    网络设备向终端设备发送第一指示信息，所述第一指示信息用于指示第一时频资源集；
    所述网络设备向所述终端设备发送第二指示信息，所述第二指示信息用于指示第二时频资源集存在或不存在；
    所述网络设备在所述第一时频资源集中的第一时频资源上向所述终端设备发送控制信息；
    在所述第二指示信息指示所述第二时频资源集存在的情况下，所述网络设备在所述第二时频资源集中的第二时频资源上向所述终端设备发送所述控制信息，所述第二时频资源集包含的多个时频资源中包含所述第二时频资源。
  2. 根据权利要求1所述的方法，其特征在于，所述第一时频资源集与所述第二时频资源集在时域上分别位于同一个时隙内连续且不同的符号上。
  3. 根据权利要求1或2所述的方法，其特征在于，在所述第二指示信息指示存在所述第二时频资源集的情况下，所述第二指示信息还指示所述第二时频资源集与所述第一时频资源集在时域上分别位于同一时隙内连续且不同的符号上；或者，
    在所述第二指示信息指示存在所述第二时频资源集的情况下，所述第二指示信息还用于指示所述第二时频资源集与所述第一时频资源集在时域上分别位于不同的时隙。
  4. 根据权利要求1或2所述的方法，其特征在于，
    在所述第二指示信息指示存在所述第二时频资源集的情况下，所述第二指示信息还用于指示所述第二时频资源集在一个时间段内在时域上所占用的符号个数。
  5. 根据权利要求3所述的方法，其特征在于，
    在所述第二指示信息指示所述第二时频资源集与所述第一时频资源集在时域上分别位于同一时隙内连续且不同的符号上的情况下，所述第二指示信息还指示所述第二时频资源集在时域上所占用的符号个数；或者，
    在所述第二指示信息指示所述第二时频资源集与所述第一时频资源集在时域上分别位于不同的时隙的情况下，所述第二指示信息还指示所述第二时频资源集在时域上所占用的符号个数。
  6. 根据权利要求1-5任一所述的方法，其特征在于，所述第一时频资源和所述第二时频资源占用的频域资源相同。
  7. 根据权利要求1-6任一所述的方法，其特征在于，所述第一时频资源和所述第二时频资源在时域上占用的符号数相等。
  8. 一种信号接收方法，其特征在于，所述方法包括：
    终端设备接收网络设备发送的第一指示信息，所述第一指示信息用于指示第一时频资源集；
    所述终端设备接收所述网络设备发送的第二指示信息，所述第二指示信息用于指示第二时频资源集存在或不存在；
    所述终端设备在所述第一时频资源集中的第一时频资源上接收所述网络设备发送的控制信息；
    在所述终端设备根据所述第二指示信息确定所述第二时频资源集存在的情况下，所述终端设备在所述第二时频资源集中的第二时频资源上接收所述网络设备发送的所述控制信息。
  9. 根据权利要求7所述的方法，其特征在于，所述第一时频资源集与所述第二时频资源集在时域上分别位于同一个时隙内连续且不同的符号上。
  10. 根据权利要求7或9所述的方法，其特征在于，在所述第二指示信息指示存在所述第二时频资源集的情况下，所述第二指示信息还用于指示所述第二时频资源集与所述第一时频资源集在时域上分别位于同一时隙内连续且不同的符号上；或者，
    在所述第二指示信息指示存在所述第二时频资源集的情况下，所述第二指示信息还用于指示所述第二时频资源集与所述第一时频资源集在时域上分别位于不同的时隙。
  11. 根据权利要求7或9所述的方法，其特征在于，
    在所述第二指示信息指示存在所述第二时频资源集的情况下，所述第二指示信息还用于指示所述第二时频资源集在一个时间段内在时域上所占用的符号个数。
  12. 根据权利要求10所述的方法，其特征在于，
    在所述第二指示信息指示所述第二时频资源集与所述第一时频资源集在时域上分别位于同一时隙内连续且不同的符号上的情况下，所述第二指示信息还指示所述第二时频资源集在时域上所占用的符号个数；或者，
    在所述第二指示信息指示所述第二时频资源集与所述第一时频资源集在时域上分别位于不同的时隙的情况下，所述第二指示信息还指示所述第二时频资源集在时域上所占用的符号个数。
  13. 根据权利要求8-12任一所述的方法，其特征在于，所述第一时频资源和所述第二时频资源占用的频域资源相同。
  14. 根据权利要求8-13任一所述的方法，其特征在于，所述第一时频资源和所述第二时频资源在时域上占用的符号数相等。
  15. 一种通信装置，其特征在于，所述装置包括发送单元，其中，
    所述发送单元，用于向终端设备发送第一指示信息，所述第一指示信息用于指示第一时频资源集；
    所述发送单元，还用于向所述终端设备发送第二指示信息，所述第二指示信息用于指示第二时频资源集存在或不存在；
    所述发送单元，还用于在所述第一时频资源集中的第一时频资源上向所述终端设备发送控制信息；
    所述发送单元，还用于在所述第二指示信息指示所述第二时频资源集存在的情况下，在所述第二时频资源集中的第二时频资源上向所述终端设备发送所述控制信息，所述第二时频资源集包含的多个时频资源中包含所述第二时频资源。
  16. 根据权利要求15所述的通信装置，其特征在于，所述第一时频资源集与所述第二时频资源集在时域上分别位于同一个时隙内连续且不同的符号上。
  17. 根据权利要求15或16所述的通信装置，其特征在于，在所述第二指示信息指示存在所述第二时频资源集的情况下，所述第二指示信息还指示所述第二时频资源集与所述 第一时频资源集在时域上分别位于同一时隙内连续且不同的符号上；或者，
    在所述第二指示信息指示存在所述第二时频资源集的情况下，所述第二指示信息还用于指示所述第二时频资源集与所述第一时频资源集在时域上分别位于不同的时隙。
  18. 根据权利要求15或16所述的通信装置，其特征在于，
    在所述第二指示信息指示存在所述第二时频资源集的情况下，所述第二指示信息还用于指示所述第二时频资源集在一个时间段内在时域上所占用的符号个数。
  19. 根据权利要求17所述的通信装置，其特征在于，
    在所述第二指示信息指示所述第二时频资源集与所述第一时频资源集在时域上分别位于同一时隙内连续且不同的符号上的情况下，所述第二指示信息还指示所述第二时频资源集在时域上所占用的符号个数；或者，
    在所述第二指示信息指示所述第二时频资源集与所述第一时频资源集在时域上分别位于不同的时隙的情况下，所述第二指示信息还指示所述第二时频资源集在时域上所占用的符号个数。
  20. 根据权利要求15-19任一所述的通信装置，其特征在于，所述第一时频资源和所述第二时频资源占用的频域资源相同。
  21. 根据权利要求15-20任一所述的通信装置，其特征在于，所述第一时频资源和所述第二时频资源在时域上占用的符号数相等。
  22. 一种通信装置，其特征在于，所述装置包括接收单元；
    所述接收单元，用于接收网络设备发送的第一指示信息，所述第一指示信息用于指示第一时频资源集；
    所述接收单元，还用于接收所述网络设备发送的第二指示信息，所述第二指示信息用于指示第二时频资源集存在或不存在；
    所述接收单元，还用于在所述第一时频资源集的第一时频资源上接收所述网络设备发送的所述控制信息；
    所述接收单元，还用于在所述第二指示信息指示所述第二时频资源集存在的情况下，在所述第二时频资源集的第二时频资源上接收所述网络设备发送的所述控制信息。
  23. 根据权利要求22所述的通信装置，其特征在于，所述第一时频资源集与所述第二时频资源集在时域上分别位于同一个时隙内连续且不同的符号上。
  24. 根据权利要求22或23所述的通信装置，其特征在于，在所述第二指示信息指示存在所述第二时频资源集的情况下，所述第二指示信息还用于指示所述第二时频资源集与所述第一时频资源集在时域上分别位于同一时隙内连续且不同的符号上；或者，
    在所述第二指示信息指示存在所述第二时频资源集的情况下，所述第二指示信息还用于指示所述第二时频资源集与所述第一时频资源集在时域上分别位于不同的时隙。
  25. 根据权利要求22或23所述的通信装置，其特征在于，
    在所述第二指示信息指示存在所述第二时频资源集的情况下，所述第二指示信息还用于指示所述第二时频资源集在一个时间段内在时域上所占用的符号个数。
  26. 根据权利要求24所述的通信装置，其特征在于，
    在所述第二指示信息指示所述第二时频资源集与所述第一时频资源集在时域上分别位 于同一时隙内连续且不同的符号上的情况下，所述第二指示信息还指示所述第二时频资源集在时域上所占用的符号个数；或者，
    在所述第二指示信息指示所述第二时频资源集与所述第一时频资源集在时域上分别位于不同的时隙的情况下，所述第二指示信息还指示所述第二时频资源集在时域上所占用的符号个数。
  27. 根据权利要求22-26任一所述的通信装置，其特征在于，所述第一时频资源和所述第二时频资源占用的频域资源相同。
  28. 根据权利要求22-27任一所述的通信装置，其特征在于，所述第一时频资源和所述第二时频资源在时域上占用的符号数相等。
  29. 一种通信装置，其特征在于，所述通信装置包括处理器和存储器，所述存储器中用于存储计算机执行指令，所述网络设备运行时，所述处理器执行所述存储器中的计算机执行指令以利用所述网络设备中的硬件资源执行权利要求1至7中任一所述方法的操作步骤。
  30. 一种通信装置，其特征在于，所述通信装置包括处理器和存储器，所述存储器中用于存储计算机执行指令，所述网络设备运行时，所述处理器执行所述存储器中的计算机执行指令以利用所述网络设备中的硬件资源执行权利要求8至14中任一所述方法的操作步骤。
  31. 一种计算机可读存储介质，其特征在于，包括程序，当其在计算机上运行时，使得计算机执行如权利要求1至7中任一项所述的方法。
  32. 一种计算机可读存储介质，其特征在于，包括程序，当其在计算机上运行时，使得计算机执行如权利要求8至14中任一项所述的方法。
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