WO2023030205A1 - 资源指示方法和通信装置 - Google Patents

资源指示方法和通信装置 Download PDF

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Publication number
WO2023030205A1
WO2023030205A1 PCT/CN2022/115305 CN2022115305W WO2023030205A1 WO 2023030205 A1 WO2023030205 A1 WO 2023030205A1 CN 2022115305 W CN2022115305 W CN 2022115305W WO 2023030205 A1 WO2023030205 A1 WO 2023030205A1
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Prior art keywords
indication information
data
search space
frequency domain
domain resource
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PCT/CN2022/115305
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English (en)
French (fr)
Inventor
冯淑兰
张阳阳
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华为技术有限公司
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Publication of WO2023030205A1 publication Critical patent/WO2023030205A1/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • 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
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of communication technologies, and in particular to a resource indication method and a communication device.
  • the data transmission mode between the scheduling node and the scheduled node is usually divided into semi-persistent scheduling (semi persistent scheduling, SPS) (also known as configuration scheduling (configured grant, CG)) and dynamic scheduling (dynamic grant, DG).
  • SPS semi-persistent scheduling
  • CG configuration scheduling
  • DG dynamic grant
  • the configuration method of the SPS is: after sending a resource allocation signaling once, data transmission is performed according to the allocated resources within a certain period of time, without sending a new resource allocation signaling, and the signaling redundancy is relatively low.
  • the configuration method of the DG is as follows: each data transmission needs to send resource allocation signaling, and the signaling redundancy is relatively high.
  • the transmission data between the scheduling node and the scheduled node adopts the above SPS (CG) method for data transmission, it needs to wait for the predefined time to be transmitted before it can be transmitted, which increases the data transmission delay, and the resources used for each transmission Unchanged, reducing scheduling flexibility.
  • the transmission data between the scheduling node and the scheduled node can use the above-mentioned DG method for data transmission, but this method requires a relatively large number of control signaling bits, which can generally reach Dozens to hundreds of bits, this scheduling method not only increases the redundancy of control signaling and reduces the network transmission efficiency, but also frequent and blind detection of large control channels will also lead to excessive power consumption of the scheduled nodes.
  • the present application provides a resource indication method and a communication device, which are used to solve the problem of excessive control signaling redundancy during data transmission, which is beneficial to improving network transmission efficiency and reducing power consumption of scheduled nodes.
  • the present application provides a method for indicating resources, and the execution body of the method may be a terminal device, or may be a chip applied in the terminal device.
  • the following description is made by taking the execution subject as a terminal device as an example.
  • the method includes: the terminal device monitors and receives the first indication information in the first search space, where the first indication information is used to indicate the frequency domain resources of the first data.
  • the terminal device monitors and receives second indication information in the second search space, where the second indication information is used to indicate the start transmission time of the first data, and the monitoring period of the first search space is longer than the monitoring period of the second search space.
  • the terminal device receives the first data according to the frequency domain resource and the initial transmission time.
  • the terminal device receives the first indication information sent by the network device in the monitoring period of the first search space. Since the monitoring period of the first search space is greater than that of the second search space, it avoids repeating the sending frequency in the second search space. resources, causing the problem of high redundancy in scheduling signaling transmission.
  • the number of frequency domain resource information receptions can be reduced, thereby reducing the transmission redundancy of scheduling signaling, improving the transmission efficiency of the network, and reducing the power consumption of terminal equipment.
  • the second indication information sent in the monitoring period can trigger data transmission in time when the data arrives, reducing the waiting time delay for transmitting data.
  • the first indication information is also used to indicate at least one of the following information: the modulation and coding mode of the first data, or the size of the time domain resource of the first data; or, the second indication
  • the information is also used to indicate at least one of the following information: a modulation and coding scheme of the first data, or a size of a time-domain resource of the first data.
  • the network device can determine the data according to at least one of the channel conditions at the time of the data to be transmitted and the size of the data packet before data transmission.
  • the modulation and coding method or the data time domain resource size For example, when the channel condition is good or the data packet is short, a modulation and coding method with higher spectral efficiency or a smaller data time domain resource can be used to achieve the purpose of improving system efficiency.
  • the first indication information further includes at least one of the following information: downlink control signaling format identifier, carrier identifier, bandwidth part identifier, redundancy version, new data identifier, hybrid automatic repeat request (hybrid automatic repeat request, HARQ) process number, downlink allocation index, physical uplink control channel (physical uplink control channel, PUCCH) resource identifier, PUCCH transmission power command, physical downlink shared channel (physical downlink shared channel, PDSCH) HARQ feedback Timing identification, virtual resource block (virtual resource block, VRB) to physical resource block (physical resource block, PRB) mapping method, PRB binding size identification, rate matching identification, trigger zero power channel state information reference signal (zero power channel state information-reference signal, ZP CSI-RS), antenna port, transmission configuration identifier, sounding reference signal (sounding reference signal, SRS) request, demodulation reference signal (demodulation reference signal, DMRS) sequence initialization.
  • HARQ hybrid automatic repeat request
  • the size of the second indication information is smaller than the size of the first indication information.
  • the size of the second indication information of the monitoring period of the second search space is reduced, and the redundancy of scheduling signaling transmission is reduced.
  • Improve the transmission efficiency of the network reduce the power consumption of the terminal equipment, and indicate the relatively fast-changing information through the second indication information of the monitoring cycle of the second search space, which ensures the timeliness of scheduling signaling transmission and improves the system efficiency.
  • the size of the second indication information is smaller than that of the first indication information, which reduces the power consumption of the terminal device for detecting the scheduling signaling.
  • the second indication information is carried by a sequence or a physical downlink control channel.
  • the sequence is used to carry the second indication information, so as to obtain better transmission reliability.
  • the physical downlink control channel is used to carry the second indication information, which can carry more information.
  • the above method further includes: receiving configuration information, where the configuration information is used to configure at least one of the monitoring period of the first search space or the monitoring period of the second search space.
  • the monitoring period of the first search space or the monitoring of the second search space can be configured according to the periodicity of communication data transmission, communication channel environment, mobility of terminal equipment, network load, power consumption of terminal equipment, etc. At least one of the cycles, so as to save the power consumption of the terminal device as much as possible on the basis of meeting the data transmission requirements.
  • the configuration information includes at least one of the following information: the starting position of the first search space, the frequency domain resource size of the first search space, the frequency domain resource position of the first search space, the first The continuous monitoring duration of a search space or the monitoring symbol position in the monitoring time slot of the first search space.
  • the configuration information further includes at least one of the following information: the start position of the second search space, the frequency domain resource size of the second search space, the frequency domain resource position of the second search space, the first The continuous monitoring duration of the second search space, the interval time slot between two adjacent monitoring time slots in the second search space, or the monitoring symbol position in the monitoring time slot of the second search space.
  • This application adds an interval time slot between two adjacent monitoring time slots in the second search space in the configuration information, which can reduce the time for the terminal device to monitor the second indication information within the continuous monitoring duration, thereby further reducing the time for the terminal device. power consumption.
  • the above method further includes that the continuous monitoring duration of the first search space is shorter than the continuous monitoring duration of the second search space.
  • the frequency domain resources for transmitting the second indication information are the same as the frequency domain resources for the first data, or the size of the frequency domain resources for transmitting the second indication information is smaller than the size of the frequency domain resources for the first data.
  • the frequency domain resources for transmitting the second indication information are the same as the frequency domain resources for the first data.
  • the second indication information and the first data can share reference signals for demodulation to improve channel estimation performance, or carry the first data.
  • the sequence of the two indication information can be used as a reference signal for data demodulation, thereby reducing transmission redundancy of additional reference signals for data demodulation, or improving channel estimation performance.
  • the size of the frequency domain resource for transmitting the second indication information is smaller than the size of the frequency domain resource for receiving data, which can reduce the monitoring power consumption of the terminal device.
  • the frequency domain resources of the second search space are the same as the frequency domain resources of the first search space, or the size of the frequency domain resources of the second search space is smaller than the frequency domain resources of the first search space. Domain resource size.
  • the frequency domain resources of the second search space are the same as the frequency domain resources of the first search space, which can avoid the complexity increase caused by frequent switching of bandwidth parts when the terminal device monitors the control signaling.
  • the frequency domain resource size of the second search space is smaller than the frequency domain resource size of the first search space, which can reduce the monitoring power consumption of the terminal device for monitoring the second indication information.
  • the above method further includes: adjusting the start position of the second search space or the At least one of the monitoring periods of the second search space.
  • At least one of the start position of the second search space or the monitoring period of the second search space is adjusted according to the position of the time slot where the second indication information is received in the second search space, conveniently
  • the system sets a more accurate time for monitoring the second indication information according to the data transmission time, and reduces the monitoring power consumption of the terminal device for monitoring the second indication information.
  • the above method further includes: receiving third indication information, the third indication information indicating at least one of the starting position of the second search space or the monitoring period of the second search space .
  • At least one of the starting position of the second search space or the monitoring period of the second search space after the third indication information indicates facilitates the system to set up more accurate monitoring of the second search space according to the transmission time of the first data.
  • the time of the indication information reduces the monitoring power consumption of the terminal device to monitor the second indication information.
  • the above method further includes: stopping the monitoring of the second indication information during the remaining continuous monitoring period in the current monitoring period of the second search space.
  • the terminal device after the terminal device monitors the second indication information, it stops monitoring the second indication information during the remaining continuous monitoring period of the current monitoring period of the second search space, reducing the monitoring time of the second indication information by the terminal device. monitoring power consumption.
  • the present application provides a method for indicating resources, and the execution body of the method may be a terminal device, or may be a chip applied in the terminal device.
  • the following description is made by taking the execution subject as a terminal device as an example.
  • the method includes: the terminal device monitors and receives fourth indication information in the third search space, the fourth indication information is used to indicate the frequency domain resource of the second data; the terminal device sends fifth indication information at the first transmission opportunity, and the The fifth indication information is used to indicate the start transmission time of the second data, and the monitoring period of the third search space is greater than the transmission opportunity period of the first transmission opportunity; the terminal device according to the frequency domain resource and the sending the second data at the start transmission time.
  • the terminal device receives the fourth indication information sent by the network device during the monitoring period of the third search space, and pre-allocates uplink transmission resources that the terminal device can use. Since the monitoring period of the third search space is greater than that of the first transmission opportunity The transmission opportunity period avoids the problem that the terminal device repeatedly sends the frequency domain resource expected to be used for data transmission at the first transmission opportunity, which causes high signaling transmission redundancy. Adopting the scheme of this application can reduce the frequency domain resource information transmission frequency, thereby reducing the transmission redundancy of scheduling signaling, improving the transmission efficiency of the network, and reducing the power consumption of the terminal device.
  • the fifth indication information is sent in a transmission period of a transmission opportunity to notify the network device of the time domain resources expected by the terminal device for data transmission at this time, thereby avoiding the problem of waste of transmission resources caused by reducing time delay.
  • the fourth indication information is further used to indicate at least one of the following information: the modulation and coding scheme of the second data, or the size of the time domain resource of the second data; or
  • the fifth indication information is further used to indicate at least one of the following information: a modulation and coding scheme of the second data, or a size of a time domain resource of the second data.
  • the terminal device can determine the data according to at least one of the channel conditions at the time of the data to be transmitted and the size of the data packet before data transmission.
  • the modulation and coding method or the data time domain resource size For example, when the channel condition is good or the data packet is short, a modulation and coding method with higher spectral efficiency or a smaller data time domain resource can be used to achieve the purpose of improving system efficiency.
  • the fifth indication information further includes at least one of the following information: downlink control signaling format identifier, carrier identifier, uplink carrier or supplementary uplink carrier identifier, bandwidth part identifier, frequency hopping identifier, redundancy Remaining version, new data identifier, HARQ process number, downlink assignment index DAI, SRS resource identifier, precoding information and layer number, antenna port, SRS request, CSI request, code block group (CBG) transmission information, Phase tracking reference signal (phase tracking reference signal, PTRS)) and DMRS correlation, beta offset (beta_offset) identification, DMRS sequence initialization.
  • downlink control signaling format identifier identifier
  • carrier identifier uplink carrier or supplementary uplink carrier identifier
  • bandwidth part identifier bandwidth part identifier
  • frequency hopping identifier frequency hopping identifier
  • redundancy Remaining version new data identifier
  • HARQ process number downlink assignment index DAI
  • SRS resource identifier precoding information and
  • the fifth indication information is carried by a sequence, a physical uplink control channel or a physical uplink shared channel.
  • the physical uplink control channel or the physical uplink shared channel is used to carry the fifth indication information, which can carry more information.
  • the method further includes: receiving configuration information, where the configuration information is used to configure at least one of a monitoring period of the third search space or a transmission opportunity period of the first transmission opportunity.
  • the monitoring cycle of the third search space or the transmission of the first transmission opportunity can be configured according to the transmission periodicity of communication data, the communication channel environment, the mobility of terminal equipment, the load condition of the network, and the power consumption of terminal equipment, etc. At least one of the opportunity periods, so as to save the power consumption of the terminal device as much as possible on the basis of meeting the data transmission requirements.
  • the configuration information includes at least one of the following information: the starting position of the third search space, the frequency domain resource size of the third search space, the frequency domain resource position of the third search space, the first The continuous monitoring duration of the third search space or the monitoring symbol position in the monitoring time slot of the third search space.
  • the configuration information further includes at least one of the following information: the starting position of the first transmission opportunity, the frequency domain resource size of the first transmission opportunity, the frequency domain resource position of the first transmission opportunity, The duration of the transmission opportunity slot period of the first transmission opportunity, the interval slot between two adjacent transmission opportunity slots in the first transmission opportunity period, or the symbol position of the transmission opportunity in the first transmission opportunity transmission slot.
  • the above method further includes that the continuous monitoring duration of the third search space is shorter than the duration of the transmission opportunity slot of the first transmission opportunity.
  • the frequency domain resource of the fifth indication information is the same as the frequency domain resource of the second data, or the size of the frequency domain resource of the fifth indication information is smaller than the frequency domain resource of the second data. Domain resource size.
  • the frequency domain resources for transmitting the fifth indication information are the same as the frequency domain resources for the second data.
  • the fifth indication information and the data can share reference signals for demodulation to improve channel estimation performance, or carry the fifth indication information.
  • the sequence of the indication information can be used as a reference signal for data demodulation, thereby reducing transmission redundancy of additional reference signals for data demodulation, or improving channel estimation performance.
  • the size of the frequency domain resource for transmitting the fifth indication information is smaller than the size of the frequency domain resource for the second data, which can increase the power spectral density of the terminal device for sending the fifth indication information, and improve the transmission performance of the fifth indication information.
  • the present application provides a method for indicating resources, and the execution body of the method may be a network device, or may be a chip applied in the network device.
  • the following description is made by taking the execution subject as an example of a network device.
  • the method includes: sending first indication information in a first search space, where the first indication information is used to indicate frequency domain resources of the first data; sending second indication information in a second search space, where the second indication information is used Indicating the initial transmission time of the first data, the monitoring period of the first search space is greater than the monitoring period of the second search space; according to the frequency domain resources and the initial transmission time, to the The terminal device sends the first data.
  • the first indication information is further used to: indicate the modulation and coding mode of the first data, and/or indicate the size of the time domain resource of the first data; or, the The second indication information is also used to: indicate the modulation and coding scheme of the first data, and/or indicate the size of the time domain resource of the first data.
  • the first indication information further includes at least one of the following information: downlink control signaling format identifier, carrier identifier, bandwidth part identifier, redundancy version, new data identifier, HARQ process number, downlink Allocation index, PUCCH resource identifier, PUCCH transmission power command, PDSCH HARQ feedback timing identifier, VRB to PRB mapping mode, PRB binding size identifier, rate matching identifier, trigger ZP CSI-RS, antenna port, transmission configuration identifier, SRS request , DMRS sequence initialization.
  • the size of the second indication information is smaller than the size of the first indication information.
  • the second indication information is carried in sequence or physical downlink control signaling.
  • the sequence is used to carry the second indication information, so as to obtain better transmission reliability.
  • the physical downlink control channel is used to carry the second indication information, which can carry more information.
  • the method further includes: sending configuration information, where the configuration information is used to configure at least one of the monitoring period of the first search space or the monitoring period of the second search space.
  • the configuration information includes at least one of the following information: the starting position of the first search space, the frequency domain resource size of the first search space, the frequency domain resource position of the first search space, the first The continuous monitoring duration of a search space or the monitoring symbol position in the monitoring time slot of the first search space.
  • the configuration information further includes at least one of the following information: the start position of the second search space, the frequency domain resource size of the second search space, the frequency domain resource position of the second search space, the first The continuous monitoring duration of the second search space, the interval time slot between two adjacent monitoring time slots in the second search space, or the monitoring symbol position in the monitoring time slot of the second search space.
  • This application adds an interval time slot between two adjacent monitoring time slots in the second search space in the configuration information, thereby reducing the time for the terminal to monitor the second signaling during the continuous monitoring period, and further reducing the power of the terminal device. consumption.
  • the above method further includes that the continuous monitoring duration of the first search space is shorter than the continuous monitoring duration of the second search space.
  • the frequency domain resource of the second indication information is the same as the frequency domain resource of the first data, or the frequency domain resource of the second indication information is smaller than the frequency domain resource of the first data. Domain resource size.
  • the frequency domain resources of the second search space are the same as the frequency domain resources of the first search space, or the size of the frequency domain resources of the second search space is smaller than that of the first search space The frequency domain resource size of .
  • the method further includes: according to the time slot position where the second indication information is sent in the second search space, determining the start position of the second search space or monitoring the second search space At least one of the cycles.
  • the method further includes: sending third indication information, where the third indication information indicates the starting position of the second search space or at least one of the monitoring periods of the second search space one.
  • the present application provides a communication method, and the execution body of the method may be a network device, or may be a chip applied to the network device.
  • the following description is made by taking the execution subject as an example of a network device.
  • Send fourth indication information in the third search space where the fourth indication information is used to indicate the frequency domain resources of the second data; monitor and receive fifth indication information at the first transmission opportunity, where the fifth indication information is used to indicate
  • the start transmission time of the second data, the monitoring period of the third search space is greater than the transmission opportunity period of the first transmission opportunity space; according to the frequency domain resource and the start transmission time, receive the second data. Therefore, the problem of waste of transmission resources brought about by reducing the time delay can be avoided.
  • the network device pre-allocates the uplink transmission resource to be used by the terminal device through the fourth instruction information, but in order to avoid waste of transmission resources, the terminal device only uses the uplink transmission resource when there is data to be transmitted. Afterwards, the network device is notified by sending the fifth indication information, and the uplink data is sent in the time domain resources indicated by the fourth indication information and the fifth indication information, so as to avoid the waste of transmission resources caused by reducing the time delay.
  • the fourth indication information is also used for: the modulation and coding mode of the second data, and/or, the size of the time domain resource of the second data; or, the fifth The indication information is also used for: the modulation and coding mode of the second data, and/or, the size of the time domain resource of the second data.
  • the first indication information further includes at least one of the following information: downlink control signaling format identifier, carrier identifier, uplink carrier or supplementary uplink carrier identifier, bandwidth part identifier, frequency hopping identifier, redundancy Remaining version, new data identifier, HARQ process number, downlink assignment index DAI, SRS resource identifier, precoding information and layer number, antenna port, SRS request, CSI request, CBG transmission information, association relationship between PTRS and DMRS, beta bias Shift identification, DMRS sequence initialization.
  • the fifth indication information is carried by a sequence, a physical uplink control channel or a physical uplink shared channel.
  • the method further includes: sending configuration information, where the configuration information is used to configure at least one of a monitoring period of the third search space or a transmission opportunity period of the first transmission opportunity.
  • the configuration information includes at least one of the following information: the starting position of the third search space, the frequency domain resource size of the third search space, the frequency domain resource position of the third search space, the first The continuous monitoring duration of the third search space or the monitoring symbol position in the monitoring time slot of the third search space.
  • the configuration information further includes at least one of the following information: the starting position of the first transmission opportunity, the frequency domain resource size of the first transmission opportunity, the frequency domain resource position of the first transmission opportunity, The duration of the transmission opportunity slot period of the first transmission opportunity, the interval slot between two adjacent transmission opportunity slots in the first transmission opportunity period, or the symbol position of the transmission opportunity in the first transmission opportunity transmission slot.
  • the above method further includes that the continuous monitoring duration of the third search space is shorter than the duration of the transmission opportunity slot of the first transmission opportunity.
  • the frequency domain resource of the fifth indication information is the same as the frequency domain resource of the second data, or the size of the frequency domain resource of the fifth indication information is smaller than the frequency domain resource of the second data. Domain resource size.
  • a communication device in the fifth aspect, is provided, and the beneficial effects may refer to the description in the first aspect, and details are not repeated here.
  • the communication device has the function of implementing the actions in the method example of the first aspect above.
  • the functions described above may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the communication device includes: a processing module and a transceiver module.
  • the processing module is used to control the transceiver module to monitor and receive the first indication information in the first search space, and the first indication information is used to indicate the frequency domain resources of the first data, and to monitor and receive the second data in the second search space.
  • Indication information the second indication information is used to indicate the start transmission time of the first data, and the monitoring period of the first search space is longer than the monitoring period of the second search space.
  • the processing module is further configured to: determine frequency domain resources and start transmission time according to the first indication information and the second indication information, and control the transceiver module to receive the first data.
  • a communication device is provided, and for beneficial effects, please refer to the description of the second aspect, which will not be repeated here.
  • the communication device has the function of implementing the actions in the method example of the second aspect above.
  • the functions described above may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the communication device includes: a processing module and a transceiver module.
  • the processing module is used to control the transceiver module to monitor and receive fourth indication information in the third search space, where the fourth indication information is used to indicate the frequency domain resources of the second data.
  • the transceiver module is configured to: send fifth indication information at the first transmission opportunity, the fifth indication information is used to indicate the start transmission time of the second data, and the monitoring period of the third search space is longer than that of the first transmission Transmission opportunity period for the opportunity space.
  • the processing module is further configured to: control the transceiver module to send the second data according to the frequency domain resource and the start transmission time.
  • a communication device is provided, and the beneficial effect can be referred to the description of the third aspect, which will not be repeated here.
  • the communication device has the function of implementing the actions in the method example of the third aspect above.
  • the functions described above may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the communication device includes: a processing module and a transceiver module.
  • the transceiver module is configured to: send first indication information in the first search space, where the first indication information is used to indicate frequency domain resources of the first data; and send second indication information in the second search space, where the first indication information is used to indicate frequency domain resources of the first data;
  • the second indication information is used to indicate the start transmission time of the first data, and the monitoring period of the first search space is longer than the monitoring period of the second search space;
  • the processing module is configured to: according to the frequency domain resource and The start transmission time controls the transceiver module to send the first data.
  • a communication device is provided.
  • the communication device has the function of implementing the actions in the method example of the fourth aspect above.
  • the functions described above may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the communication device includes: a processing module and a transceiver module.
  • the transceiver module is configured to: send fourth indication information in the third search space, where the fourth indication information is used to indicate frequency domain resources of the second data.
  • the processing module is used to control the transceiver module to monitor and receive fifth indication information at the first transmission opportunity, the fifth indication information is used to indicate the start transmission time of the second data, the monitoring of the third search space The period is greater than the transmission opportunity period of the first transmission opportunity space.
  • the processing module is further configured to: control the second data of the transceiving module according to the frequency domain resource and the initial transmission time.
  • a communication device is provided, and the communication device may be the terminal device in the above method embodiment, or a chip provided in the terminal device.
  • the communication device includes a communication interface, a processor, and optionally, a memory.
  • the memory is used to store computer programs or instructions
  • the processor is coupled to the memory and the communication interface.
  • the communication device executes the method performed by the terminal device in the above method embodiments.
  • a communication device is provided, and the communication device may be the network device in the foregoing method embodiment, or a chip provided in the network device.
  • the communication device includes a communication interface, a processor, and optionally, a memory.
  • the memory is used to store computer programs or instructions
  • the processor is coupled to the memory and the communication interface.
  • the communication device executes the method performed by the network device in the above method embodiments.
  • a computer program product includes: computer program code, when the computer program code is executed, the method performed by the terminal device in the above aspects is executed.
  • a computer program product including: computer program code, when the computer program code is executed, the method performed by the network device in the above aspects is executed.
  • the present application provides a system-on-a-chip, where the system-on-a-chip includes a processor, configured to implement functions of the terminal device in the methods in the foregoing aspects.
  • the chip system further includes a memory for storing program instructions and/or data.
  • the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • the present application provides a system-on-a-chip, where the system-on-a-chip includes a processor, configured to implement the functions of the network device in the methods of the foregoing aspects.
  • the chip system further includes a memory, configured to store program instructions and/or data.
  • the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • the present application provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is run, the method performed by the terminal device in the above aspects is implemented.
  • the present application provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed, the method performed by the network device in the above aspects is implemented.
  • Fig. 1 is a schematic diagram of a communication system
  • FIG. 2 is a schematic flowchart of a resource indication method provided by an embodiment of the present application
  • FIG. 3 is a schematic diagram of a resource configuration method for carrying a second indication information sequence provided by an embodiment of the present application
  • FIG. 4 is a schematic diagram of another resource configuration method for carrying a second indication information sequence provided by an embodiment of the present application.
  • Fig. 5 is a schematic diagram of the relationship between the monitoring period of the first search space and the monitoring period of the second search space provided by the embodiment of the present application;
  • FIG. 6 is a schematic diagram of a second search space configuration method provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a configuration method of a monitoring period interval of a second search space provided by an embodiment of the present application.
  • Fig. 8 is a schematic diagram of a monitoring method of second indication information provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of another monitoring method of second indication information provided by the embodiment of the present application.
  • Fig. 10 is a schematic diagram of another monitoring method of the second indication information provided by the embodiment of the present application.
  • Fig. 11 is a schematic flowchart of another resource indication method provided by the embodiment of the present application.
  • FIG. 12 is a schematic diagram of a configuration manner of a first transmission opportunity provided by an embodiment of the present application.
  • Fig. 13 is a schematic flowchart of another resource indication method provided by the embodiment of the present application.
  • Fig. 14 is a schematic flowchart of another resource indication method provided by the embodiment of the present application.
  • Fig. 15 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 16 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • Fig. 17 is a schematic structural diagram of a simplified communication device provided by an embodiment of the present application.
  • FIG. 18 is a schematic structural diagram of a simplified terminal device provided by an embodiment of the present application.
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD time division duplex
  • UMTS universal mobile telecommunications system
  • 5th generation, 5G fifth generation mobile communication system
  • new radio new radio, NR
  • FIG. 1 shows a communication system 100 .
  • the communication system 100 includes at least two communication devices, for example, a scheduling node 110 and at least one scheduled node 120, wherein data can be transmitted between the scheduling node 110 and at least one scheduled node 120 through a wireless connection. communication.
  • the scheduling node 110 may send downlink data to the scheduled node 120 ; the scheduled node 120 may also send uplink data to the scheduling node 110 .
  • the scheduling node in the above communication system is used to determine the resource and mode of data transmission, and notify the scheduled node of the determined resource scheme and data transmission mode.
  • the scheduled node is used to perform data transmission by using the resource allocation scheme and data transmission mode determined by the scheduling node according to the instruction of the scheduling node.
  • the data transmission here includes data receiving and data sending.
  • the scheduling node in the embodiment of the present application may be an access network device or a wireless access network device, it may be a transmission reception point (transmission reception point, TRP), and it may also be an evolved base station (evolved NodeB, eNB) in the LTE system.
  • TRP transmission reception point
  • eNB evolved base station
  • the wireless controller in the scenario, or the network device can be a relay station, an access point, a vehicle device, a wearable device, a network device in a 5G network or a network device in a future evolved PLMN network, etc., or it can be a network device in a WLAN
  • the access point (access point, AP) can also be a gNB in the NR system, and the scheduling node can also be a city base station, a micro base station, a pico base station, a femto base station, etc., or a terminal device with a scheduling function. This application is not limited to this.
  • the network device may include a centralized unit (centralized unit, CU) node, or a distributed unit (distributed unit, DU) node, or a wireless access network (radio access network, including a CU node and a DU node, RAN) device, or a RAN device including a control plane CU node (CU-CP node), a user plane CU node (CU-UP node) and a DU node.
  • CU-CP node control plane CU node
  • CU-UP node user plane CU node
  • the network device provides services for the cell, and the terminal device communicates with the cell through the transmission resources (for example, frequency domain resources, or spectrum resources) allocated by the network device.
  • the cell may belong to a macro base station (for example, a macro eNB or a macro gNB, etc.) , can also belong to the base station corresponding to a small cell, where the small cell can include: a metro cell, a micro cell, a pico cell, a femto cell, etc. , these small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the scheduled node in the embodiment of the present application may be a terminal device, also called a user equipment (User Equipment, UE), a mobile station (mobile station, MS), a mobile terminal (mobile terminal, MT), an access terminal, Subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • UE User Equipment
  • MS mobile station
  • MT mobile terminal
  • an access terminal Subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • a terminal device may be a device that provides voice/data connectivity to users, for example, a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • some terminal devices include: mobile phone, tablet computer, notebook computer, palmtop computer, mobile internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) device, enhanced Augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, smart grid Wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, cellular phones, cordless phones, session initiation protocols protocol, SIP) telephone, wireless local loop (wireless local loop, WLL) station, personal digital assistant (personal digital assistant, PDA), handheld device with wireless communication function, computing device or other processing device connected to a wireless modem
  • Vehicle-mounted devices, wearable devices, terminal devices in a 5G network, or terminal devices in a future evolving public land mobile network (PLMN), etc. are not limited in this application
  • the terminal device may be a terminal device in an Internet of Things (Internet of Things, IoT) system.
  • IoT Internet of Things
  • the Internet of Things is an important part of the development of information technology in the future. Its main technical feature is to connect objects to the network through communication technology, so as to realize the intelligent network of man-machine interconnection and object interconnection.
  • the terminal device in this embodiment of the present application may be a wearable device.
  • Wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that can be worn directly on the body or integrated into the user's clothing or accessories.
  • Wearable devices are not only a hardware device, but also can achieve powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.
  • the terminal device may also be a terminal device in machine type communication (machine type communication, MTC).
  • the terminal device can also be an on-board module, on-board module, on-board component, on-board chip, or on-board unit built into the vehicle as one or more components or units.
  • the on-board component, on-board chip, or on-board unit can implement the method provided in this application.
  • the embodiments of the present application can also be applied to the Internet of Vehicles, such as vehicle to everything (V2X), vehicle-to-vehicle communication long-term evolution technology (long term evolution-vehicle, LTE-V), vehicle-to-vehicle (vehicle-to-vehicle vehicle, V2V) technology, etc.
  • V2X vehicle to everything
  • LTE-V long term evolution-vehicle
  • V2V vehicle-to-vehicle vehicle-to-vehicle vehicle, V2V
  • FIG. 1 is only a simplified schematic diagram for easy understanding, and the communication system 100 may further include other devices, which are not shown in FIG. 1 .
  • the scheduling node in order to reasonably allocate wireless resources and meet the needs of each communication node, the scheduling node is usually responsible for determining the allocation of wireless resources, and notifying the resource allocation result to the scheduled node, and the scheduled node performs according to the allocated resources. communication.
  • the allocation of wireless resources includes one or more combinations of time domain, frequency domain, space domain, code domain, and orbital angular momentum domain.
  • wireless resource scheduling includes dynamic scheduling and semi-persistent scheduling.
  • each transmission time interval of the scheduling node (the transmission interval can be one or more scheduling units, and the scheduling unit can be one or more symbols, one or more time slots, one or more subframes, one or more frame, one or more superframes, or from a few microseconds to a few milliseconds to tens of milliseconds or even a few seconds) to determine the wireless resources used by the scheduled node, and the scheduling node notifies the scheduled node that it needs to use the physical layer control signaling.
  • radio resources used In semi-persistent scheduling, the scheduling node notifies the scheduled node of the resource to be used through high-level control signaling such as radio resource control (RRC) signaling. Once the resource is allocated and activated, it will always follow the high-level signaling. The indicated method is used unless reconfigured by higher layer signaling.
  • RRC radio resource control
  • the radio resource allocation is carried in a physical downlink control channel (physical downlink control channel, PDCCH) during dynamic scheduling, and the radio resource allocation is carried in radio resource control RRC signaling during semi-persistent scheduling.
  • Dynamic scheduling needs to send physical layer control signaling for each resource allocation, so the signaling redundancy (overhead) is relatively high.
  • Semi-persistent scheduling sends a resource allocation signaling and uses resources according to the allocated resources within a certain period of time. , there is no need to send signaling again, so signaling redundancy is relatively low.
  • Dynamic scheduling can be adjusted at each transmission time interval, which has higher flexibility. Therefore, dynamic scheduling is usually used for some bursty services, such as web browsing services.
  • Semi-persistent scheduling is often used for periodic services, such as voice services, because no scheduling adjustments are made for a long period of time.
  • SPS downlink semi-persistent scheduling
  • CG uplink semi-persistent scheduling
  • no scheduling grant free
  • some 3D visual interaction systems such as virtual reality (virtual reality, VR), augmented reality (augmented reality, AR), mixed reality (mixed reality, MR) and cloud gaming (cloud gaming) and other application scenarios (VR/ Extended reality (XR) services, such as AR/MR/cloud excellence, have certain periodic characteristics when the information source is generated, that is, XR services are video transmission services that are periodically transmitted at a certain frame rate .
  • the frame rate refers to the number of frames contained in the video per second, the unit is frame per second (frame per second, fps), and the period is the reciprocal of the frame rate. It is understandable that the minimum video frame rate is generally set to 24fps.
  • the frame rate When the frame rate is lower than 24fps, the human eye will feel obvious stuttering.
  • the frame rate is generally 30fps, but for some violently changing screens, 60fps is generally required.
  • XR services may arrive earlier than the expected arrival time, or may arrive later than the expected arrival time. This phenomenon can be called jitter.
  • the value of the jitter obeys a specific probability distribution mathematically and statistically, where the probability distribution may be a Gaussian distribution or a truncated Gaussian distribution, an exponential distribution, a Poisson distribution, or other statistical distributions. And the jitter value usually has a certain range, for example, in the 3GPP evaluation model, the jitter range of the video frame is [-4ms, 4ms].
  • the resources required for data transmission at the XR service application layer are relatively large, and the average rate of XR service data packets can reach 30 megabits per second (Mbps), 45 Mbps or even 60 Mbps. Taking 30Mbps, 60fps frame rate as an example, the average packet size of each video frame is 62500byte, and the data packet size also obeys a certain probability distribution.
  • the standard deviation of the XR service is the average packet size multiplied by 10.5 % is 6563byte
  • the maximum package size is the average package size multiplied by 150%, which is 93750byte
  • the minimum is the average package size multiplied by 50%, which is 31250byte, which is half of the average package size.
  • the packet delay budget is 10ms, where PDB is the time threshold from when a data packet or video frame arrives at the scheduling node to when it is successfully received by the scheduling node.
  • the XR service can adopt a semi-static scheduling method. For example, for the 60fps XR service, resources with a period of 16.67ms can be allocated to the XR service. This scheduling method can save signaling overhead. However, due to jitter in the arrival of XR services, if resources are allocated according to the expected arrival period of XR services, if the XR services arrive much earlier than the expected arrival time, you need to wait for a period of time until halfway.
  • the XR service in order to avoid the problem of increased XR service data transmission delay caused by semi-persistent scheduling, the XR service is scheduled in a dynamic scheduling manner.
  • Dynamic scheduling needs to transmit allocated resources through physical layer control signals each time.
  • These control signalings include: signaling used to indicate radio resource information, such as partial bandwidth identifiers, frequency domain resources, VRB-to-PRB mapping methods, Time domain resource identifier, PRB bundle size identifier, rate matching identifier; signaling used to indicate the modulation and coding method, such as modulation and coding method, new data expression, redundancy version; HARQ-related signaling, such as HARQ process number, downlink Assignment indexing; signaling related to multiple antennas, etc.
  • radio resource information such as partial bandwidth identifiers, frequency domain resources, VRB-to-PRB mapping methods, Time domain resource identifier, PRB bundle size identifier, rate matching identifier
  • signaling used to indicate the modulation and coding method such as modulation and
  • the scheduled node when using dynamic scheduling to schedule XR services, does not know whether there is a signaling sent to itself in each transmission interval, so it is necessary to monitor the PDCCH at any time to obtain the physical layer control signaling sent to itself. If the scheduled node does not successfully detect the PDCCH, it is considered that the scheduling node has not sent control signaling to itself. If the PDCCH is successfully detected, the required communication resources and transmission methods are determined according to the content indicated by the PDCCH signaling. This process It is called the PDCCH blind detection process.
  • the total number of bits of control signaling can be as high as dozens to hundreds of bits, and XR services are relatively dense. If the network equipment sends physical layer control signaling every time the XR service is transmitted, The scheduling node uses too many resources for transmitting the physical layer control signaling, which reduces the resources of the scheduling node for data transmission and reduces the efficiency. Moreover, the scheduled node needs to perform PDCCH blind detection according to the PDCCH signaling size of tens to hundreds of bits each time. The larger the PDCCH signaling size, the higher the power consumption of the scheduled node for PDCCH blind detection.
  • an embodiment of the present application provides a resource indication method and a communication device.
  • the terminal device receives the first indication information sent by the network device during the monitoring period of the first search space. Since the monitoring period of the first search space is greater than that of the second The monitoring period of the search space avoids the problem of repeatedly sending frequency resources in the second search space, resulting in high redundancy of scheduling signaling transmission.
  • the number of frequency domain resource information receptions can be reduced, thereby reducing the transmission redundancy of scheduling signaling, improving the transmission efficiency of the network, and reducing the power consumption of terminal equipment.
  • the second indication information sent in the monitoring period can trigger data transmission in time when the data arrives, reducing the waiting time delay for transmitting data.
  • the "protocol” involved in this embodiment of the application may refer to a standard protocol in the communication field, for example, it may include LTE protocol, NR protocol and related protocols applied in future communication systems, which is not limited in this application.
  • “plurality” means two or more.
  • “And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the contextual objects are an “or” relationship.
  • “At least one of the following” or similar expressions refer to any combination of these items, including any combination of single or plural items.
  • At least one (one) of a, b and c may represent: a, or b, or c, or a and b, or a and c, or b and c, or a, b and c, wherein a, b, c can be single or multiple.
  • the resource indication method 200 provided by the embodiment of the present application will be described in detail below with reference to FIG. 2 .
  • the method 200 may be applied to the communication system 100 shown in FIG. 1 , but this embodiment of the application is not limited thereto.
  • the scheduling node is a network device and the scheduled node is a terminal device as an example to illustrate the method, but this application does not limit the execution subject of the interaction.
  • FIG. 2 shows a resource indication method 200 provided by an embodiment of the present application. As shown in FIG. 2, the method 200 may include the following steps:
  • the network device sends first indication information in a first search space, where the first indication information is used to indicate frequency domain resources of first data.
  • the terminal device monitors and receives the first indication information in the first search space.
  • the foregoing first indication information may be transmitted through physical layer signaling, or part of the first indication information may be transmitted through high-layer signaling and part of the information may be transmitted through physical layer signaling. It can be understood that the sum of a part of information transmitted through high-layer signaling and a part of information transmitted through physical layer signaling in the first indication information may be the first indication information, or may be part of the information in the first indication information. Applications are not limited to this.
  • the physical layer control signaling is sent in the physical downlink control channel search space candidate (physical downlink control channel search space candidate). It can be understood that, when there is part of information transmitted through high-layer signaling in the first indication information, the network device does not need to send this part of information in the first indication information (part of information transmitted through high-layer signaling) in the search space.
  • the above first indication information when transmitted through physical layer signaling, it may be represented by using a specific downlink control information format, or by scrambling with a specific radio network temporary identity (RNTI).
  • RNTI radio network temporary identity
  • the first data in the embodiment of the present application refers to the downlink data sent by the network device to the terminal device, and may also be referred to as transmission data.
  • the network device sends second indication information in the second search space, where the second indication information is used to indicate the start transmission time of the first data.
  • the terminal device monitors and receives the second indication information in the second search space .
  • the monitoring period of the first search space is greater than the monitoring period of the second search space. It should be understood that when the first indication information is carried by high-layer signaling, the update time of the first indication information is longer than the monitoring period of the second search space.
  • the network device sends the second indication information at n time slots, indicating that M time slots starting from time slot n+K, frequency domain resources indicated by the first indication information are used for transmission of the first data.
  • K may be indicated in the first indication information, or determined according to a predefined rule, or indicated in the second indication information.
  • M represents the time-domain resource size for transmitting data. M can be in units of time slots, subframes, mini-slots, or sub-slots , or in symbolic units. In this embodiment of the present application, the unit of M is time slot as an example for illustration. M may be indicated in the first indication information, or indicated in the second indication information. In the embodiment of the present application, both n and K are integers greater than or equal to 0, and M is an integer greater than 0.
  • the second indication information may be used to indicate not to use or not activate the frequency domain resources indicated by the first indication information for data transmission;
  • the frequency domain resources indicated by the indication information are used for data transmission.
  • the monitoring duration of the first search space is shorter than the monitoring duration of the second search space.
  • the network device sends the first data to the terminal device according to the frequency domain resource and the initial transmission time.
  • the terminal device receives the first data from the network device according to the frequency domain resource and the initial transmission time.
  • the network device and the terminal equipment determine the start position of the time domain at which the frequency domain resources indicated by the first indication information are activated, thereby determining the time-frequency resources for carrying data, so that the network equipment can
  • the downlink data is sent on the determined time-frequency resource, and the terminal device can receive the downlink data on the determined time-frequency resource.
  • the time-frequency resources indicated by the first indication information and the second indication information are only used for the initial transmission of data, and if the terminal device detects that an error occurs in the data, it sends a negative acknowledgment (non-acknowledgment, NACK) signal to the The network device, after receiving the NACK, the network device can start retransmission.
  • the signaling for scheduling retransmission may use third indication information different from the first indication information and the second indication information, and the frequency domain resources used for retransmission data are not limited to the frequency domain resources indicated by the first indication information .
  • the terminal device receives the first indication information sent by the network device in the monitoring period of the first search space. Since the monitoring period of the first search space is greater than the monitoring period of the second search space, it avoids duplication in the second search space.
  • Sending frequency resources causes the problem of high redundancy in scheduling signaling transmission.
  • the number of frequency domain resource information receptions can be reduced, thereby reducing the transmission redundancy of scheduling signaling, improving the transmission efficiency of the network, and reducing the power consumption of terminal equipment.
  • the second indication information sent in the monitoring period can trigger data transmission in time when the data arrives, reducing the waiting time delay for transmitting data.
  • the network device may determine, according to one or more of information such as the size of the data packet communicated with the terminal device, the channel state information with the terminal device, the service load of the network device, etc.
  • Wireless resources including frequency domain resources.
  • the network device obtains one of the average packet size N average , the maximum packet size N max , and the minimum packet size N min of services communicated with the terminal device.
  • the network device obtains the state of the wireless channel with the terminal device, determines the modulation and coding scheme (MCS) for communication with the terminal device, and determines the spectral efficiency factor (spectral efficiency, SE) according to the MCS, where SE is the modulation order The product of number and code rate.
  • MCS modulation and coding scheme
  • SE spectral efficiency factor
  • the network device determines the periodic service factor f according to the service load of the current network device.
  • the network device can determine that the resource element (resource element, RE) allocated to the terminal device is approximately f ⁇ N average /SE, and then consider various pilot signals sent by the network device (for example, demodulation reference signal, channel State information reference signal, etc.), system broadcast signal (for example, synchronization signal block (synchronization signal block, SSB)), and current bandwidth information, finally determine the frequency domain resource allocated to the terminal device.
  • RE resource element
  • the first indication information in the embodiment of the present application may also include at least one of the following information: carrier identifier, bandwidth part identifier, redundancy version, new data identifier, HARQ process number, downlink allocation index, PUCCH resource identifier, PUCCH transmission power command, PDSCH HARQ feedback timing identification, VRB to PRB mapping mode, PRB binding size identification, rate matching identification, trigger ZP CSI-RS, antenna port, transmission configuration identification, SRS request, DMRS sequence initialization.
  • the above-mentioned first indication information is also used to indicate at least one of the following information: the modulation and coding mode of the first data, or the size of the time-domain resource of the first data; or, the above-mentioned second indication
  • the information is also used to indicate at least one of the following information: a modulation and coding scheme of the first data, or a size of a time-domain resource of the first data.
  • the first indication information may also be used to indicate the modulation and coding mode of the first data and the size of the time domain resource of the first data; or, the first indication information may also be used to indicate the modulation and coding mode of the first data,
  • the second indication information is also used to indicate the size of the time domain resource of the first data; or, the first indication information may also be used to indicate the size of the time domain resource of the first data, and the second indication information is also used to indicate the size of the time domain resource of the first data
  • the modulation and coding mode of the first data; or, the second indication information may also be used to indicate the modulation and coding mode of the first data and the size of the time domain resource of the first data.
  • the first indication information is used to indicate the modulation and coding method or the size of the time-domain resource of the first data. Since the monitoring period of the first search space is greater than that of the second search space, it can avoid The signaling is sent in the search space, causing a problem of high redundancy in transmission of the scheduling signaling.
  • the network device can determine the data according to at least one of the channel conditions at the time of the data to be transmitted and the size of the data packet before data transmission.
  • the modulation and coding method or the data time domain resource size For example, when the channel condition is good or the data packet is short, a modulation and coding method with higher spectral efficiency or a smaller data time domain resource can be used to achieve the purpose of improving system efficiency.
  • XR services are generally used in static or low-speed mobile scenarios.
  • the size of the I frame of the video frame in the XR service is larger than that of the P frame/B frame.
  • the time domain resource size of the data is indicated in the second indication information.
  • the network device determines the modulation and coding scheme of the data and the time-domain resource size of the data according to at least one factor among data packet size, channel environment, and network load, and indicates it in the first indication information or in the second indication information.
  • the channel changes relatively slowly, and if the communication scene between the network device and the terminal device is static or low-speed moving, the modulation and coding mode of the data may be indicated in the first indication information. If the channel changes quickly and the current network device is heavily loaded, the modulation and coding mode of the data is indicated in the second information. For another example, if the change in the size of the data packet is small, the size of the data time domain resource is indicated in the first indication information, and if the change of the data packet is relatively large, the size of the data time domain resource is indicated in the second indication information.
  • the information indicated in the second indication information may not be indicated in the first indication information; or, the information indicated in the first indication information may not be indicated in the second indication information. It should also be understood that if the information required for data transmission is not indicated in both the first indication information and the second indication information, a default value may be used. Exemplarily, when the indication information sent by the network device does not indicate the time domain resource size M for data transmission, the default time domain resource size for data transmission is 1 time slot. If the indication information sent by the network device does not indicate the number of transport blocks for data transmission, the number of transport blocks for data transmission is 1 by default.
  • the network device may also determine the number of transport blocks (transport block, TB) and the number of transport blocks in the indicated time domain resource.
  • the number may be less than or equal to a transmission slot (assuming that the transmission time interval is a time slot, that is, the unit of M is a time slot), or the number of transmission blocks may be greater than or equal to a transmission slot.
  • the value of k is 2, indicating that two transmission blocks are transmitted in one time slot.
  • the value of k is 1/M, which means that one transmission block is transmitted in M time slots.
  • the value of k is 2/M, indicating that M time slots transmit 2 transmission blocks.
  • the time between the end time of transmitting the second indication information and the transmission of the data of the second indication information must be at least greater than or equal to the time G, and this time can be determined according to the processing capability of the terminal device.
  • the first indication information or the second indication information indicates the value of K or M
  • it can be expressed directly by a binary number
  • the values of M and K can also be indicated by the table index number, for example, one or two columns are added to the existing time domain resource allocation (Time domain resource allocation, TDRA) table to indicate the selection of K or M or K and M
  • TDRA Time domain resource allocation
  • the value indicates the value of K or the value of M or the values of K and M by indicating the serial number of the TDRA table in the first indication information or the second indication information.
  • the second indication information is carried by a sequence or a physical downlink control channel.
  • a sequence is used to carry the second indication information, so as to obtain better transmission reliability.
  • the terminal device detects the corresponding sequence, and considers that the second indication information has been sent, and determines the value of K according to the corresponding rules.
  • the value of K can refer to the above related description and will not be repeated here.
  • the terminal device does not detect the corresponding sequence, it considers that the second signaling is not sent.
  • the second indication information is carried by PDCCH
  • the terminal device detects the corresponding PDCCH, it considers that the second indication information is sent, and the value of K will be determined according to the corresponding rules.
  • the value of K can refer to the above-mentioned related description. I won't repeat them here.
  • the terminal device does not detect the corresponding PDCCH, it considers that the second signaling is not sent.
  • the above sequence may be a ZC sequence, a Gold sequence, an M sequence, a Walsh sequence or other random sequences, an orthogonal sequence and the like.
  • a sequence (Gold sequence) identical or similar to that of the DMRS is used to represent the second indication information.
  • the network device uses the same or similar sequence as that of the reference signal to carry the second indication information.
  • the sequence adopted by the DMRS is the sequence adopted by the 3GPP protocol TS 38.211 V 16.6.0 7.4.1.1.1. According to this protocol, the initial value c init of the DMRS sequence satisfies the following formula:
  • l is the OFDM symbol number in the slot, is the time slot number in a frame, Parameters configured for high-level signaling, The value of is 0 or the CDM group value, The value of is 0 or 1, according to high-level signaling, and predefined rules.
  • a specific implementation method is as follows: the initial value c init of the sequence carrying the second indication information is different from the initial value c init of the DMRS.
  • the initial value c init of the sequence carrying the second indication information satisfies the following formula:
  • n SCID ⁇ 0,1 ⁇ is configured by high-level signaling or indicated by the first signaling (DMRS sequence initialization in the first signaling), and ⁇ ' is a CDM group.
  • the initial value c init of the sequence carrying the second indication information satisfies the following formula:
  • the DMRS sequence is used to carry the second indication information, and the frequency domain resources of the DRMS sequence can be configured to be consistent with the frequency domain resources indicated by the first indication information, then the second indication information indicates the starting position of the data transmission at the same time, It can also be used for demodulation of data channels to improve demodulation performance, reduce DMRS when transmitting data, and reduce system transmission redundancy.
  • time domain resources for transmitting the second indication information may also be configured to be different from time domain resources for transmitting data in the DMRS.
  • the normal DMRS symbol is generally not located in symbol 13, so the second indication information can be configured in symbol 13, and symbol 13 is located in the last symbol of the time slot. scheduling impact.
  • Fig. 3 shows a resource configuration manner for carrying the second indication information sequence provided by the embodiment of the present application.
  • the first black rectangular shaded area carries the second indication information
  • the diagonal shaded rectangular area indicates the time-frequency resources used for the terminal device to transmit the data block
  • the second black rectangular shaded area sends the DMRS of the data block .
  • FIG. 4 shows another resource configuration manner for carrying the second indication information sequence provided by the embodiment of the present application.
  • both area 1 and area 2 are frequency domain resources configured to carry the second indication information sequence.
  • Indication information the oblique shaded rectangular area indicates the time-frequency resource used for the terminal device to transmit the data block, and the black rectangular shaded area in time slot n+1 sends the DMRS of the data block.
  • the network device may notify the terminal device of the adopted sequence through configuration information, or the network device and the terminal device may determine the adopted sequence according to a predefined rule.
  • the frequency domain resources of the sequence carrying the second indication information may be continuous to reduce terminal monitoring power consumption, or discontinuous to obtain frequency diversity gain.
  • the following shows three specific implementation manners of carrying the second indication information provided by the embodiments of the present application.
  • Manner 1 using a sequence to indicate the second indication information.
  • sequence 1 means “activate or use” the frequency domain resources indicated by the first indication information
  • sequence 2 means “not activating or using” the frequency domain resources indicated by the first indication information, and according to the predefined The rules for determining time domain resources.
  • use sequence 1 to indicate "inactivate or not use” the frequency domain resources indicated by the first indication information and follow the predefined rules Identify time domain resources.
  • sequence 1 means “activate or use” the frequency domain resources indicated by the first indication information
  • not sending sequence 1 means “not activating or using” the frequency domain resources indicated by the first indication information
  • the predetermined Defined rules determine temporal domain resources.
  • adopt sequence 1 to indicate "not activate or not use” the frequency domain resources indicated by the first indication information not send sequence 1 to indicate the frequency domain resources indicated by the first indication information, and determine the time domain resources according to predefined rules .
  • the second indication information sent by the network device at time slot n indicates "activation" or "use” of the frequency domain resources indicated by the first indication information, which means that starting from time slot n+K, the first indication information continues The indicated size of the time slot resource and the frequency domain resource indicated by the first indication information are used for data transmission.
  • the value of K can refer to the relevant description above, and will not be repeated here.
  • the second indication information sent by the network device at time slot n may indicate "inactive” or “not using” the frequency domain resources indicated by the first indication information, which means starting from time slot n+1 , the size of the time slot resource indicated by the persistent indication information and the frequency domain resource indicated by the first indication information are not used for data transmission.
  • the second indication information is also used to indicate one or more of time domain resource K, data transmission duration M, and MCS
  • different sequences may also be used to represent different values, as shown in Table 1.
  • K m MCS don't send sequence inactive the the sequence 1 K1 M1 MCS1 sequence 2 K1 M2 MCS2 sequence 3 K2 M1 MCS1 sequence 4 K2 M2 MCS2
  • K1 and K2 represent different values of K
  • M1 and M2 represent different values of M
  • MCS1 and MCS2 represent different values of MCS
  • the value ranges of K, M and MCS can be stipulated in the agreement or passed
  • the first indication information is sent to the terminal device.
  • the PDCCH is used to carry the second indication information.
  • the second indication information may be 1-bit signaling or signaling greater than 1 bit. Since the number of transmission bits of the second indication information is less than the number of signaling bits in the existing PDCCH format 0-0/0-1/1-0/1-1, the transmission redundancy of the second indication information is reduced, and the Complexity and power consumption of end device detection.
  • the second indication information is 1-bit indication information
  • the 1-bit indication information indicates "activation/use” or “deactivation/non-use” of the frequency domain resources indicated by the first indication information.
  • the second indication information sent by the network device at time slot n indicates “activation” or "use”
  • the frequency domain resource indicated by the first indication information is used for data transmission with the terminal device.
  • K may be sent to the terminal device in the first indication information, or K may be determined according to a predefined rule.
  • the second indication information sent by the network device at time slot n indicates "inactive" or “not in use", which means starting from time slot n+K and continuing for the time slots with the length of M time slots indicated by the first indication information,
  • the frequency domain resource indicated by the first indication information may not be used for data transmission with the terminal device.
  • the second indication information is indication information greater than 1 bit.
  • the second indication information is m-bit indication information
  • m1 bits may be used to indicate the time-domain resource K
  • m2 bits may be used to indicate the data transmission duration M
  • m3 bits may be used to indicate the MCS, wherein the values of m1, m2, and m3 are all integers greater than or equal to zero. Then the number of bits of the second indication information may be m1+m2+m3.
  • the corresponding values of K, M, and MCS can be obtained according to agreed rules, or determined through the first indication information.
  • 2-bit information may also be used to represent different values, as shown in Table 3.
  • the K m MCS Do not send the second indication message inactive the the 00 K1 M1 MCS1 01 K1 M2 MCS2 10 K2 M1 MCS1 11 K2 M2 MCS2
  • K1 and K2 represent different values of K
  • M1 and M2 represent different values of M
  • MCS1 and MCS2 represent different values of MCS
  • the value ranges of K, M and MCS can be stipulated in the agreement or passed
  • the first indication information is sent to the terminal device.
  • Mode 3 The PDCCH channel is used to carry the second indication information, and the second indication information of multiple terminal devices can be combined and sent in one downlink control information (DCI) format. Since the number of transmission bits of the second indication information is less than the number of signaling bits in the existing PDCCH format 0-0/0-1/1-0/1-1, the transmission redundancy of the second indication information is reduced, and the Complexity and power consumption of end device detection.
  • DCI downlink control information
  • the above-mentioned downlink control channel may use the PDCCH to carry the second indication information, and the second indication information may be encoded by using a polar code.
  • the number of bits of the second indication information is very small, generally less than 11 bits, and other small code block encoding methods may be used.
  • the specific coding method can reuse the channel coding method described in 3GPP TS 38.212 V G.6.0 5.3.3.
  • the channel coding method described in TS 38.212 V G.6.0 5.3.3 is only used for uplink control signaling transmission.
  • the method described in 3GPP TS 38.212 V G.6.0 5.3.3 The channel coding method is used for downlink control signaling transmission, and part of the uplink coding module can be reused, which reduces the implementation complexity.
  • the method 200 further includes: the network device sending configuration information, where the configuration information is used to configure at least one of the monitoring period of the first search space or the monitoring period of the second search space.
  • the terminal device receives the configuration information.
  • the monitoring cycle of the first search space or the second search space can be configured according to the transmission periodicity of communication data, communication channel environment, mobility of terminal equipment, network load, power consumption of terminal equipment, etc. At least one of the monitoring periods, so as to save the power consumption of the terminal device as much as possible on the basis of meeting the data transmission requirements.
  • the network device may determine the monitoring period of the first search space according to changes of data to be transmitted and changes of transmission channels.
  • the size of the data packet changes stably and the channel condition is stable set a relatively long monitoring period of the first search space; when the data packet changes rapidly and the channel condition changes rapidly, set a relatively short first search space monitoring cycle.
  • the size of data packets and channel conditions of XR services are generally relatively stable. Therefore, the network device can set a relatively long monitoring period of the first search space (for example, set to 80 time slots or 160 time slots).
  • the network device can set the monitoring period of the second search space according to the arrival time of the data packet.
  • the monitoring period of the second search space may be set to a value close to 33.3 ms, for example, to 33 ms.
  • the monitoring period of the second search space may be set to a value close to 8.3 ms, for example, to 8 ms.
  • a variable second search space period can also be set according to a certain pattern.
  • the second search space period The cycle follows the pattern of ⁇ 16.5ms, 16.5ms, 17ms ⁇ , and when the subcarrier interval is 30kHz, the cycle of the second search space is the pattern of ⁇ 33 slots, 33 slots, 34 slots ⁇ .
  • the monitoring period of the second search space may be 33 time slots or 34 time slots. That is, the monitoring period of the first search space determined by the network device is greater than the monitoring period of the second search space determined by the network device.
  • the monitoring period of a first search space includes multiple monitoring periods of the second search space, if the monitoring period of a first search space is 80 time slots, the monitoring period of a second search space is 2 time slots, one monitoring period of the first search space includes 40 monitoring periods of the second search space.
  • the network device determines that the monitoring period of the first search space is 80 milliseconds, and the monitoring period of the second search space can be 16.5 milliseconds or 17 milliseconds. That is, the monitoring period of the first search space determined by the network device is greater than the monitoring period of the second search space determined by the network device.
  • the above configuration information may at least include at least one of the following information: the starting position of the first search space, the frequency domain resource size of the first search space, the frequency domain resource position of the first search space, the first search space The number of continuous monitoring time slots in the monitoring period, the starting symbol position of the monitoring period in the monitoring time slots of the first search space, and the length of a monitoring period in the monitoring time slots of the first search space.
  • the size of the frequency domain resource in the first search space, the position of the frequency domain resource in the first search space, and the length of a monitoring period in the first search space may use the control resource set (control resource set, CORESET) logo to indicate.
  • the above configuration information may further include at least one of the following information: the starting position of the second search space, the size of the frequency domain resource in the second search space, the frequency domain resource position of the second search space, the second search space The number of continuous monitoring time slots in the monitoring period, the interval between two adjacent monitoring time slots in the second search space or the starting symbol position of the monitoring period in the monitoring time slots of the second search space, the second search space monitoring The length of a monitoring period within a slot.
  • the size of the frequency domain resource in the second search space, the position of the frequency domain resource in the second search space, and the length of a monitoring period in the second search space may be indicated by the identifier of the CORESET associated with the second search space.
  • the interval time slot between two adjacent monitoring time slots in the second search space is added to the configuration information, which can reduce the time for the terminal device to monitor the second indication information within the continuous monitoring duration, thereby further reducing the The power consumption of the device.
  • the number of continuous monitoring time slots of the second search space each time is called the second search space continuous monitoring period, and the corresponding duration is called the second search space continuous monitoring duration.
  • Two adjacent second The interval of the continuous monitoring period of the search space is called the monitoring period of the second search space.
  • FIG. 6 shows a configuration manner of a second search space provided by an embodiment of the present application.
  • three monitoring periods of the second search space are included.
  • Each monitoring period includes a continuous time slot whose length is the number of continuous monitoring time slots, that is, the continuous monitoring period of a second search space, and the continuous monitoring period of each second search space includes the monitoring of multiple second search spaces period, the monitoring period of each second search space may last for one or more symbols, which is referred to as the length of the second signaling monitoring period.
  • the interval between two adjacent monitoring periods is called the monitoring period interval of the second search space.
  • the continuous monitoring duration of the second search space may be determined according to the jitter range of the arrival time of the transmitted data.
  • This design can trigger data transmission in time after the data arrives, reducing data transmission delay.
  • the jitter range of the data arrival time is [-4ms, 4ms]
  • the continuous monitoring duration of the first search space is configured to be shorter than the continuous monitoring duration of the second search space, for example, the continuous monitoring duration of the first search space is configured as 2 time slots, and the continuous monitoring duration of the second search space is configured The duration is 8 time slots.
  • the length of the monitoring period of each second search space can be 1 symbol or multiple symbols, and the network device can select the required second indication information according to the detection performance, channel propagation conditions or the second indication information.
  • One or more factors in the frequency domain resource size are used to determine the length of the monitoring period of the second search space.
  • the second indication information requires relatively high detection performance and/or the channel condition is relatively poor and/or the frequency domain resources of the second indication information are relatively small, the monitoring period length of the second search space may take a larger value, For example 2 symbols.
  • the second indication information requires relatively low detection performance and/or the channel condition is relatively good and/or the second signaling frequency domain resources are relatively large, the length of the monitoring period of the second search space can take a smaller value, for example, 1 symbol.
  • the monitoring period of the second search space is equal to the monitoring period of the second search space, and the network device may configure only the monitoring period of the second search space or only the monitoring period of the second search space.
  • the network device may define default values for one or more of the parameters, instead of sending them to the terminal device through signaling.
  • the network device and the terminal device may agree that the monitoring interval of the second search space is 1 time slot.
  • the network device and the terminal device may agree that the length of the second signaling monitoring period is 2 symbols through an agreement.
  • the interval between two adjacent monitoring time slots within the continuous monitoring duration of the search space is 1 time slot.
  • an interval time slot between two adjacent monitoring time slots in the second search space is added to the configuration information.
  • the interval time slot can be configured to be greater than or equal to 1 time slot, which can further reduce the The power consumption of the device.
  • FIG. 7 shows a configuration manner of monitoring period intervals of the second search space provided by the embodiment of the present application.
  • the monitoring period interval between two adjacent second search spaces in configuration mode 2 is twice the monitoring period interval between two adjacent second search spaces in configuration mode 1 .
  • the monitoring interval between two adjacent second search spaces is 1 ms
  • the monitoring period interval between two adjacent second search spaces is 2 ms.
  • the long monitoring interval can reduce the power consumption of the terminal device for monitoring the second indication information.
  • the monitoring interval is small, which can reduce the data transmission delay.
  • the network device can configure an appropriate value for data transmission according to the energy-saving requirements of the terminal device and the data transmission delay.
  • the frequency domain resource for transmitting the second indication information is the same as the frequency domain resource for transmitting data, or the size of the frequency domain resource for transmitting the second indication information is smaller than the size of the frequency domain resource for transmitting data.
  • the frequency domain resource for transmitting the second indication information is the same as the frequency domain resource for transmitting data, if the second indication information is carried by a sequence, then the sequence of the second support information can also be used for data demodulation at this time, Improve data demodulation performance, or reduce the number of DMRS used for data demodulation, thereby improving system efficiency. If the second indication information is carried by the physical control channel, then the second indication information and data may share a reference signal for demodulation. The size of the frequency domain resource for transmitting the second indication information is smaller than the size of the frequency domain resource for receiving data, which can reduce transmission redundancy for transmitting the second indication information and reduce monitoring power consumption of the terminal device.
  • the network device can configure the frequency domain resources for transmitting the second indication information and the frequency domain resources for transmitting the first indication information as the same frequency domain resources, which can avoid frequent The delay and power consumption caused by BWP switching.
  • the frequency domain resources of the second search space are the same as the frequency domain resources of the first search space, or the size of the frequency domain resources of the second search space is smaller than the size of the frequency domain resources of the first search space.
  • the method 200 further includes: the network device determines the start position or second position of the subsequent second search space according to the time slot position where the second indication information is sent in the second search space this time. At least one of the monitoring periods of the search space.
  • the terminal device determines at least one of a subsequent start position of the second search space or a monitoring period of the second search space according to the current time slot position where the second indication information is received in the second search space.
  • the method of dynamically adjusting the start time of the monitoring period of the second search space can be used to better match Transmission of business.
  • the next second indication information detection start time slot is n+L, wherein, L may be configured by the network device to the terminal device, and the value of L may be ( P-R/2), where P is the data period (unit: time slot), and R is the data arrival time jitter range (unit: time slot).
  • Fig. 8 shows a monitoring manner of the second indication information provided by the embodiment of the present application.
  • the second indication information that is, the actual monitoring duration is the first The time from the start position of the first monitoring period to the end position of the third monitoring period
  • the start time of the monitoring duration for the next monitoring of the second indication information is 25 time slots after the third monitoring period. And so on. In this way, there is no need for the terminal device to monitor the second indication information during 25 time slots, which saves power consumption of the terminal device.
  • the method 200 further includes: the network device sending third indication information, where the third indication information indicates at least one of a start position of the second search space or a monitoring period of the second search space.
  • the terminal device receives the third indication information.
  • the method 200 further includes: the terminal device stops monitoring the second indication information for the remaining continuous monitoring period in the current monitoring period of the second search space.
  • the terminal device monitors the second indication information during any monitoring period within the monitoring period of a second search space, it may not continue to monitor the second indication during other monitoring periods remaining within the monitoring period of the second search space information.
  • the processing manner in this embodiment of the present application can further reduce the power consumption of the terminal device for monitoring the second indication information.
  • FIG. 9 shows another monitoring manner of the second indication information provided by the embodiment of the present application. As shown in FIG. 9 , it includes 3 monitoring periods of the second search space, and the configured continuous monitoring period of each monitoring period includes 4 monitoring periods of the second search space.
  • the terminal device monitors the second indication information in the first monitoring period, and if the second indication information is not detected, then monitors the second indication information in the second monitoring period, and still does not detect the second indication information.
  • Two indication information then monitor the second indication information in the third monitoring period (that is, the first black shadow position in the figure), and detect the second indication information, then the terminal device may not monitor the second indication information in the fourth monitoring period .
  • the terminal device monitors the second signaling in the first monitoring period, and detects the second indication information (that is, the second black shaded position in the figure), then the terminal device may not be in the remaining second or third signaling. 1. Monitoring the second signaling in four monitoring periods. In the third monitoring period, the terminal device monitors the second indication information in the first, second, third, and fourth monitoring periods in sequence until the second indication information is detected in the fourth monitoring period (Fig. The third black shadow position in the center), or the second indication information is not detected until the end of the continuous monitoring period of the third monitoring period, then stop monitoring the second indication information in this monitoring period.
  • the monitoring of the second indication information in the current monitoring period of the second search space is stopped, or Continue to monitor the second indication information at the time slot after the continuous monitoring period ends, until the second indication information is detected or until the fourth indication information is received, and the fourth indication information is used to instruct to stop monitoring the second indication information.
  • the network device and the terminal device may determine whether to adopt the method of extending the monitoring period according to at least one of the network load condition, the power saving strategy of the terminal device, the service quality requirement of the data, and the like. For example, the terminal device does not need to save power, and the data transmission delay is low, and the method of extending the monitoring period can be adopted to reduce the data transmission delay. Alternatively, the data may receive relatively high transmission delay, and the terminal hopes to save power as much as possible, so the method of extending the monitoring period is not adopted.
  • the configuration of the detection period of the extended monitoring period of the second search space may adopt the same configuration as that in the continuous monitoring period of the second search space.
  • Fig. 10 shows another monitoring manner of the second indication information provided by the embodiment of the present application. As shown in FIG. 10 , it includes 3 monitoring periods of the second search space, and the configured continuous monitoring period of each monitoring period includes 4 monitoring periods of the second search space.
  • the terminal device detects the second indication information in the third monitoring period, it stops monitoring the second indication information in the current monitoring period, that is, if the terminal device is not in the first monitoring period
  • the fourth monitoring period continues to monitor the second indication information.
  • the time slot (extended period) after the continuous monitoring period ends will continue to monitor the second indication information. If the second indication information is monitored in the second detection period, the continuous monitoring is stopped, and the second indication information is continuously monitored after 25 time slots (one monitoring period).
  • the resource indication method 1100 provided by the embodiment of the present application will be described in detail below with reference to FIG. 11 .
  • the method 1100 may be applied to the communication system 100 shown in FIG. 1 , but this embodiment of the present application is not limited thereto.
  • the scheduling node is a network device and the scheduled node is a terminal device as an example to illustrate the method, but this application does not limit the execution subject of the interaction.
  • Fig. 11 shows another resource indication method 1100 provided by the embodiment of the present application. As shown in Fig. 11, the method 1100 may include the following steps:
  • the network device sends fourth indication information in the third search space, where the fourth indication information is used to instruct the terminal device to send the frequency domain resources of the second data.
  • the terminal device receives the fourth indication information in the third search space.
  • the foregoing fourth indication information may be transmitted through physical layer signaling, or part of the fourth indication information may be transmitted through high-level signaling and part of the fourth indication information may be transmitted through physical layer signaling. It can be understood that the sum of a part of information transmitted through high-layer signaling and a part of information transmitted through physical layer signaling in the fourth indication information may be the fourth indication information, or may be part of the information in the fourth indication information. Applications are not limited to this.
  • the physical layer control signaling is sent through the candidate search space of the physical downlink control channel. It can be understood that, when the fourth indication information contains part of the information transmitted through high-level signaling, the network device does not need to send this part of the fourth indication information in the search space.
  • first indication information when transmitted through physical layer signaling, it may be expressed by using a specific downlink control information format, or by using a specific RNTI scrambling.
  • the second data in the embodiment of the present application refers to the uplink data sent by the terminal device to the network device, and may also be referred to as transmission data.
  • the terminal device sends fifth indication information at the first transmission opportunity, and the fifth indication information is used to indicate the start transmission time of the terminal equipment to send the second data.
  • the network device monitors and receives the fifth indication information at the first transmission opportunity. Instructions.
  • the monitoring period of the third search space is greater than the transmission opportunity period of the first transmission opportunity.
  • the terminal device After receiving the fourth indication information, the terminal device does not immediately use the frequency domain resources indicated by the fourth indication information, but waits for uplink data to be transmitted before using the frequency domain resources indicated by the fourth indication information for transmission, In this way, unnecessary waste of wireless resources can be avoided, and the increase of power consumption of the terminal equipment and the increase of interference of the communication system caused by the terminal equipment sending empty data packets can be avoided.
  • the terminal device and the network device may not determine the actual start transmission time of the data sent by the terminal device through the fifth indication information sent at the first transmission opportunity.
  • the network device since the network device does not know when the terminal device will use the frequency domain resources indicated by the fourth information, the network device needs to continuously perform blind detection on all possible time domain resources to determine whether the terminal device has sent For the second data, this method increases the complexity of the network device.
  • the terminal device determines that there is uplink data to be transmitted, it sends the fifth indication information to the network device, which can avoid the complexity caused by the blind detection of whether there is data transmission by the network device.
  • the network device and the terminal device may further determine the type of data transmitted by the frequency domain resources indicated by the fourth indication information, for example, only XR services may be transmitted using the frequency domain resources indicated by the fourth indication information. Alternatively, it may be indicated that only the data whose priority is higher than a certain value, or whose priority is a certain value, may be transmitted using the frequency domain resources indicated by the fourth indication information. This manner can prevent other data from occupying the frequency domain resource indicated by the fourth indication information, which causes an increase in the transmission delay of the data of the target type.
  • the terminal device sends the second data to the network device according to the frequency domain resource and the initial transmission time.
  • the network device receives the second data from the terminal device according to the frequency domain resource and the initial transmission time.
  • the terminal equipment sends the uplink data according to the time-frequency resources determined by the fourth indication information and the fifth indication information.
  • the network device after receiving the fifth indication information, determines the time domain for activating the frequency domain resources indicated by the fourth indication information to take effect, so as to determine the time-frequency resources carrying data to receive upstream data.
  • the fourth indication information sent by the network device during the monitoring period of the third search space pre-allocates uplink transmission resources that the terminal device can use. Since the monitoring period of the third search space is longer than the transmission of the first transmission opportunity The opportunity period avoids the problem that the terminal device repeatedly sends frequency domain resources expected to be used for data transmission at the first transmission opportunity, resulting in high signaling transmission redundancy. Adopting the scheme of this application can reduce the frequency domain resource information transmission frequency, thereby reducing the transmission redundancy of scheduling signaling, improving the transmission efficiency of the network, and reducing the power consumption of the terminal device.
  • the fifth indication information is sent in a transmission period of a transmission opportunity to notify the network device of the time domain resources expected by the terminal device for data transmission at this time, thereby avoiding the problem of waste of transmission resources caused by reducing time delay.
  • the length may refer to the length of the monitoring period of the above-mentioned second search space, which will not be repeated here.
  • the transmission opportunity duration of the first transmission opportunity may be one symbol or multiple symbols, or one time slot or multiple time slots, or the transmission opportunity duration of the first transmission opportunity may be equal to that of the first transmission opportunity Transmission opportunity interval.
  • the network device may determine the duration of the first transmission opportunity according to at least one of channel state, network load condition, and terminal device power consumption.
  • FIG. 12 shows a configuration manner of a first transmission opportunity provided by an embodiment of the present application.
  • the transmission opportunity length of the first transmission opportunity is configured as one symbol or multiple symbols
  • the transmission opportunity length of the first transmission opportunity is configured as one time slot
  • the terminal device configures the transmission opportunity length of the first transmission opportunity to be 2 time slots
  • the transmission opportunity duration is equal to the transmission opportunity interval of the first transmission opportunity.
  • the network device monitors the fifth indication information at the transmission opportunity of the first transmission opportunity, and if the network device detects the fifth indication information in time slot n, it means that the fourth indication starts from time slot n+K
  • the time slots and frequency domain resources indicated by the information are used for data transmission of the terminal equipment. If the network device does not monitor the fifth indication information in time slot n, it means that starting from time slot n+K, the time slots and frequency domain resources with the length of M time slots indicated by the fourth indication information will not be used for terminal equipment. data transmission.
  • the fifth indication information indicates that starting from time slot n+K, the time slot and frequency domain resources of the M time slot length indicated by the fourth indication information are not used for
  • the network device may start from time slot n+K, and continue to allocate time slots and frequency domain resources with a length of M time slots indicated by the fourth indication information to other terminal devices.
  • the value of K must be large enough for the network device to send new scheduling signaling to other terminal devices.
  • the network device may allocate all or part of the frequency domain resources indicated by the fourth indication information that may be indicated as activated by the fifth indication information for other data transmission. Exemplarily, it can be used for data transmission of the terminal device 2.
  • the network device may send a signaling to the terminal device 2 to cancel the data transmission of the terminal device 2, so as to reserve the frequency domain resources for the terminal device that sends the fifth indication information, that is, to send the fifth indication information to the network device
  • the data transmission of the terminal device has a higher transmission priority.
  • the value of K needs to meet the requirement that the network device cancels the data transmission of other terminal devices before time slot n+K.
  • the above fourth indication information is also used to indicate at least one of the following information: the modulation and coding mode of the second data, or the size of the time domain resource of the second data; or, the fifth indication information It is also used to indicate at least one of the following information: the modulation and coding mode of the second data, or the size of the time domain resource of the second data.
  • the fourth indication information may also be used to indicate the modulation and coding mode of the second data and the size of the time domain resource for sending data; or, the fourth indication information may also be used to indicate the modulation and coding mode of the second data, the first
  • the fifth indication information is also used to indicate the size of the time domain resource of the second data; or, the fourth indication information may also be used to indicate the size of the time domain resource of the second data, and the fifth indication information is also used to indicate the size of the second data Modulation and coding mode; or, the fourth indication information may also be used to indicate the modulation and coding mode of the second data and the size of the time domain resource of the second data.
  • the fourth indication information is used to indicate the modulation and coding method or the size of the time-domain resource of the second data. Since the monitoring period of the third search space is longer than the transmission opportunity period of the first transmission opportunity, it can avoid The transmission opportunity of a transmission opportunity periodically sends the signaling, which causes the problem of high transmission redundancy of the scheduling signaling.
  • the terminal device can determine the data according to at least one of the channel conditions at the time of the data to be transmitted and the size of the data packet before data transmission.
  • the modulation and coding method or the data time domain resource size For example, when the channel condition is good or the data packet is short, a modulation and coding method with higher spectral efficiency or a smaller data time domain resource can be used to achieve the purpose of improving system efficiency.
  • the fifth indication information further includes at least one of the following information: downlink control signaling format identifier, carrier identifier, uplink carrier or supplementary uplink carrier identifier, bandwidth part identifier, frequency hopping identifier, redundancy Remaining version, new data identification, HARQ process number, DAI, SRS resource identification, precoding information and layer number, antenna port, SRS request, CSI request, CBG transmission information, association relationship between PTRS and DMRS, beta offset identification, DMRS Sequence initialization.
  • the above fifth indication information is carried by a sequence, a physical uplink control channel or a physical uplink shared channel.
  • sequence may be one or more of ZC sequence, Gold sequence, M sequence, Walsh sequence or other random sequences and orthogonal sequences.
  • the fifth indication information may be carried in PUCCH format 0 or format 1, but in order to distinguish it from other uplink control signaling carried in PUCCH format 0 or format 1 during specific implementation, the fifth indication information may be configured It is different from resources of other uplink control signaling, so that it is identified whether it is the fifth indication information or other uplink control signaling by using different resources.
  • the fifth indication information may be carried by a random access preamble (preamble), and the network device may configure a specific preamble to represent the fifth indication information, so as to distinguish it from the preamble (preamble) used for random access open.
  • preamble a random access preamble
  • the network device may configure a specific preamble to represent the fifth indication information, so as to distinguish it from the preamble (preamble) used for random access open.
  • the fifth indication information can be carried by the same or similar sequence as the reference signal, for example, DMRS or uplink SRS, both of which are carried by the Gold sequence, but can use different initial values, different spreading factors, different Cyclic shift or different subcarriers etc.
  • the method 1100 further includes: the network device sending configuration information, where the configuration information is used to configure at least one of a monitoring period of the third search space or a transmission opportunity period of the first transmission opportunity.
  • the terminal device receives configuration information.
  • process of configuring the monitoring period of the third search space by the network device may refer to the above-mentioned process of configuring the monitoring period of the first search space by the network device
  • the process of configuring the transmission opportunity period of the first transmission opportunity by the network device may refer to the above-mentioned configuration of the network device
  • multiple terminal devices may configure transmission opportunities of the same time domain resource.
  • multiple terminals can use different sequences or different frequency domain resources to distinguish.
  • This method is a non-competitive transmission opportunity, or multiple terminal devices can compete The use of transmission opportunities.
  • Using non-competitive transmission opportunities for terminal devices can obtain better transmission reliability and reduce transmission delay, but there may be a certain waste of resources.
  • Multiple terminal devices using competing transmission opportunities can improve system efficiency, but there may be resource conflicts and reduce transmission performance.
  • the network device and the terminal device can determine which transmission opportunity to use according to the quality of service requirements of the transmitted data, network load conditions, and the like.
  • the frequency domain resource for transmitting the fifth indication information is the same as the frequency domain resource for the second data, or the size of the frequency domain resource for transmitting the fifth indication information is smaller than the size of the frequency domain resource for the second data.
  • the frequency domain resource for transmitting the fifth indication information is the same as the frequency domain resource for the second data, and at this time, the second indication information and the second data may share a reference signal for demodulation.
  • the size of the frequency-domain resource for transmitting the fifth indication information is smaller than the size of the frequency-domain resource for the second data, which can reduce transmission redundancy and reduce monitoring power consumption of network equipment.
  • Fig. 13 shows another resource indication method 1300 provided by the embodiment of the present application. As shown in Fig. 13, the method 1300 may include the following steps:
  • the network device sends sixth indication information through high-layer signaling, where the sixth indication information is used to indicate frequency domain resources of the first data.
  • the terminal device receives sixth indication information.
  • all the information of the sixth indication information may be transmitted through high-layer signaling, or part of the information in the sixth indication information may be transmitted through high-layer signaling and part of the information may be transmitted through physical layer signaling. It can be understood that the sum of a part of information transmitted through high-layer signaling and a part of information transmitted through physical layer signaling in the sixth indication information may be the first indication information, or may be part of the information in the first indication information. Applications are not limited to this.
  • the network device does not need to send the sixth indication information in the search space or This part of information in the sixth indication information (part of information transmitted through high-layer signaling).
  • the above high layer signaling may be RRC signaling or MAC signaling.
  • the network device sends seventh indication information in the fourth search space, where the seventh indication information is used to indicate the start transmission time of the first data, and accordingly, the terminal device monitors and receives the seventh indication information in the fourth search space .
  • the sending time interval (that is, the sending period) of the above two adjacent sixth indication information is longer than the monitoring period of the fourth search space.
  • the network device sends the first data to the terminal device according to the frequency domain resource and the initial transmission time.
  • the terminal device receives the first data from the network device according to the frequency domain resource and the initial transmission time.
  • the terminal device receives the sixth indication information sent by the network device. Since the sending period of the sixth indication information is longer than the monitoring period of the fourth search space, repeated transmission of frequency resources in the fourth search space is avoided, causing scheduling signaling The problem of high transmission redundancy. By adopting the scheme of this application, the number of frequency domain resource information receptions can be reduced, thereby reducing the transmission redundancy of scheduling signaling, improving the transmission efficiency of the network, and reducing the power consumption of terminal equipment. Compared with the semi-persistent scheduling, the seventh indication information sent in the monitoring period can trigger data transmission in time when the data arrives, reducing the waiting time delay for transmitting data.
  • Fig. 14 shows another resource indication method 1400 provided by the embodiment of the present application. As shown in Fig. 14, the method 1400 may include the following steps:
  • the network device sends eighth indication information through high-layer signaling, where the eighth indication information is used to instruct the terminal device to send the frequency domain resource of the second data.
  • the terminal device receives the eighth indication information.
  • all the information of the above-mentioned eighth indication information may be transmitted through high-layer signaling, or part of the information in the eighth indication information may be transmitted through high-layer signaling and part of the information may be transmitted through physical layer signaling. It can be understood that the sum of a part of information transmitted through high-layer signaling and a part of information transmitted through physical layer signaling in the eighth indication information may be the first indication information, or may be part of the information in the first indication information. Applications are not limited to this.
  • the network device does not need to send the eighth indication information or This part of information in the eighth indication information (part of information transmitted through high-layer signaling).
  • the above high layer signaling may be RRC signaling or MAC signaling.
  • the terminal device sends ninth indication information at a second transmission opportunity, where the ninth indication information is used to indicate a start transmission time for the terminal device to send the second data.
  • the network device monitors and receives ninth indication information at the second transmission opportunity.
  • the sending time interval (that is, the sending period) of the two adjacent eighth indication information is greater than the transmission opportunity period of the second transmission opportunity.
  • the terminal device sends the second data to the network device according to the frequency domain resource and the initial transmission time.
  • the network device receives the second data from the terminal device according to the frequency domain resource and the initial transmission time.
  • the terminal device receives the eighth instruction information sent by the network device, and pre-allocates uplink transmission resources that the terminal device can use. Since the sending period of the eighth instruction information is shorter than that of the second transmission opportunity, avoiding The terminal device repeatedly sends frequency domain resources expected to be used for data transmission at the second transmission opportunity, which causes a problem of high signaling transmission redundancy. Adopting the scheme of this application can reduce the frequency domain resource information transmission frequency, thereby reducing the transmission redundancy of scheduling signaling, improving the transmission efficiency of the network, and reducing the power consumption of the terminal device. After the terminal device has data, it will The fifth indication information is sent in the transmission period of the second transmission opportunity to inform the network device of the time domain resources expected by the terminal device for data transmission at this time, thereby avoiding the waste of transmission resources caused by reducing the time delay.
  • the methods provided in the embodiments of the present application are introduced from the perspectives of the network device, the terminal device, and the interaction between the network device and the terminal device.
  • the network device and the terminal device may include a hardware structure and/or a software module, and realize the above-mentioned functions in the form of a hardware structure, a software module, or a hardware structure plus a software module . Whether one of the above-mentioned functions is executed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.
  • FIG. 15 and FIG. 16 are schematic structural diagrams of possible communication devices provided by the embodiments of the present application. These communication apparatuses can realize the functions of the terminal equipment or the network equipment in the above method embodiments, and therefore can also realize the beneficial effects of the above method embodiments.
  • the communication device may be the scheduling node 110 as shown in FIG. 1, or the scheduled node 120 as shown in FIG. 1, or a module applied to the scheduling node or the scheduled node (such as chips).
  • the communication device may be a terminal device, may also be a network device, and may also be a module (such as a chip) applied to the terminal device or the network device.
  • a communication device 1500 includes a processing module 1510 and a transceiver module 1520 .
  • the communication device 1500 may be used to realize the functions of the terminal device or the network device in the method embodiments shown in FIG. 2 , FIG. 11 , FIG. 13 or FIG. 14 above.
  • the processing module 1510 is used to control the transceiver module 1520 to monitor and receive the first indication information in the first search space, the first indication information Frequency domain resources used for the first data, and monitoring and receiving second indication information in the second search space, the second indication information is used to indicate the start transmission time of the first data, the first search space
  • the monitoring period of is greater than the monitoring period of the second search space.
  • the processing module 1510 is further configured to: determine frequency domain resources and start transmission time according to the first indication information and the second indication information, and control the transceiver module 1520 to receive the first data.
  • the first indication information is also used to indicate at least one of the following information: the modulation and coding scheme of the first data, or the size of the time domain resource of the first data; or, the first data
  • the two indication information is further used to indicate at least one of the following information: the modulation and coding scheme of the first data, or the size of the time domain resource of the first data.
  • the second indication information is carried by a sequence or a physical downlink control channel.
  • the transceiving module 1520 is further configured to: receive configuration information, where the configuration information is used to configure at least one of the monitoring period of the first search space or the monitoring period of the second search space.
  • the frequency domain resource for transmitting the second indication information is the same as the frequency domain resource for the first data, or the size of the frequency domain resource for transmitting the second indication information is smaller than the frequency domain resource for receiving the first data. resource size.
  • the frequency domain resources of the second search space are the same as the frequency domain resources of the first search space, or the size of the frequency domain resources of the second search space is smaller than the frequency domain resources of the first search space size.
  • the processing module 1510 is further configured to: determine the start position of the second search space or the second At least one of the monitoring periods of the search space.
  • the transceiving module 1520 is further configured to: receive third indication information, where the third indication information indicates at least one of a starting position of the second search space or a monitoring period of the second search space.
  • the processing module 1510 is further configured to: stop monitoring the second indication information during the remaining continuous monitoring period within the current monitoring period of the second search space.
  • the processing module 1510 is used to control the transceiver module 1520 to monitor and receive fourth indication information in the third search space, the fourth indication The information is used to indicate frequency domain resources of the second data.
  • the transceiver module 1520 is configured to: send fifth indication information at the first transmission opportunity, the fifth indication information is used to indicate the start transmission time of the second data, and the monitoring period of the third search space is greater than the first Transmission opportunity period for the transmission opportunity space.
  • the processing module 1510 is further configured to: control the transceiver module 1520 to send the second data according to the frequency domain resources and the start transmission time.
  • the fourth indication information is also used to indicate at least one of the following information: the modulation and coding scheme of the second data, or the size of the time domain resource of the second data; or, the fifth indication
  • the information is also used to indicate at least one of the following information: a modulation and coding scheme of the second data, or a size of a time-domain resource of the second data.
  • the fifth indication information is carried by a sequence, a physical uplink control channel or a physical uplink shared channel.
  • the transceiving module 1520 is further configured to: receive configuration information, where the configuration information is used to configure at least one of the monitoring period of the third search space or the transmission opportunity period of the first transmission opportunity.
  • the frequency domain resource for transmitting the fifth indication information is the same as the frequency domain resource for transmitting the data, or the size of the frequency domain resource for transmitting the fifth indication information is smaller than the size of the frequency domain resource for transmitting the data.
  • the transceiver module 1520 is used to receive sixth indication information, where the sixth indication information is used to indicate the frequency domain resource of the first data.
  • the processing module 1510 is configured to control the transceiver module 1520 to monitor and receive the seventh indication information in the fourth search space, where the seventh indication information is used to indicate the start transmission time of the first data.
  • the processing module 1510 is further configured to: control the transceiver module 1520 to receive the first data according to the frequency domain resource and the initial transmission time.
  • the transceiver module 1520 is used to receive eighth indication information, where the eighth indication information is used to indicate the frequency domain resources of the second data; and , sending ninth indication information at the second transmission opportunity, where the ninth indication information is used to indicate a start transmission time for the terminal device to send the second data.
  • the processing module 1510 is further configured to: control the transceiver module 1520 to receive the second data according to the frequency domain resources and the initial transmission time.
  • the transceiver module 1520 sends the first indication information in the first search space, and the first indication information is used to indicate the frequency of the first data. Domain resources; and, sending second indication information in the second search space, the second indication information is used to indicate the start transmission time of the first data, and the monitoring period of the first search space is longer than that of the second The monitoring period of the search space; the processing module 1510 is configured to: control the transceiver module 1520 to send the first data to the terminal device according to the frequency domain resources and the start transmission time.
  • the first indication information is further used to: indicate the modulation and coding mode of the first data, and/or indicate the size of the time domain resource of the first data; or, the second indication information It is also used to: indicate the modulation and coding mode of the first data, and/or indicate the size of the time domain resource of the first data.
  • the second indication information is carried by sequence or physical layer control signaling.
  • the transceiving module 1520 is further configured to: send configuration information, where the configuration information is used to configure at least one of the monitoring period of the first search space or the monitoring period of the second search space.
  • the frequency domain resource for transmitting the second indication information is the same as the frequency domain resource for the first data, or the size of the frequency domain resource for transmitting the second indication information is smaller than the frequency domain resource for the first data size.
  • the frequency domain resources of the second search space are the same as the frequency domain resources of the first search space, or the size of the frequency domain resources of the second search space is smaller than the frequency domain resources of the first search space size.
  • the processing module 1510 is further configured to: determine the start position of the second search space or the time slot in the monitoring period of the second search space according to the time slot position where the second indication information is sent in the second search space. at least one.
  • the transceiving module 1520 is further configured to: send third indication information, where the third indication information indicates at least one of a starting position of the second search space or a monitoring period of the second search space.
  • the transceiver module 1520 is used to: send fourth indication information in the third search space, and the fourth indication information is used to indicate the second data frequency domain resources.
  • the processing module 1510 is used to control the transceiver module 1520 to monitor and receive fifth indication information at the first transmission opportunity, the fifth indication information is used to indicate the start transmission time of the second data, and the third search space The monitoring period is greater than the transmission opportunity period of the first transmission opportunity space.
  • the processing module 1510 is further configured to: control the transceiver module 1520 to receive the second data from the terminal device according to the frequency domain resource and the initial transmission time.
  • the fourth indication information is also used for: the modulation and coding scheme of the second data, and/or, indicating the size of the time domain resource of the second data; or, the fifth indication information is also used It is used for: indicating the modulation and coding mode of the second data, and/or indicating the size of the time domain resource of the second data.
  • the fifth indication information is carried by a sequence, a physical uplink control channel or a physical uplink shared channel.
  • the method further includes: the transceiver module 1520 is further configured to: send configuration information, the configuration information is used to configure the monitoring period of the third search space or the transmission opportunity period of the first transmission opportunity at least one.
  • the frequency domain resource for transmitting the fifth indication information is the same as the frequency domain resource for the second data, or the size of the frequency domain resource for transmitting the fifth indication information is smaller than the frequency domain resource for the second data size.
  • the transceiver module 1520 sends sixth indication information through high-level signaling, and the sixth indication information is used to indicate the frequency domain resource of the first data , and sending seventh indication information in the fourth search space, where the seventh indication information is used to indicate the start transmission time of the first data.
  • the processing module 1510 is configured to: control the transceiver module 1520 to send the first data to the terminal device according to the frequency domain resources and the start transmission time.
  • the transceiver module 1520 sends eighth indication information through high-level signaling, and the eighth indication information is used to instruct the terminal equipment to send the second data frequency domain resources.
  • the processing module 1510 is configured to control the transceiver module 1520 to monitor and receive ninth indication information at the second transmission opportunity, where the ninth indication information is used to indicate the start transmission time of the terminal device to send the second data.
  • the processing module 1510 is configured to: control the transceiver module 1520 to send the first data to the terminal device according to the frequency domain resources and the start transmission time.
  • processing module 1510 and the transceiver module 1520 reference may be made to relevant descriptions in the above method embodiments, and no further description is given here.
  • module here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a dedicated processor, or a group processor, etc.) and memory, incorporated logic, and/or other suitable components to support the described functionality.
  • ASIC application specific integrated circuit
  • processor such as a shared processor, a dedicated processor, or a group processor, etc.
  • memory incorporated logic, and/or other suitable components to support the described functionality.
  • the above-mentioned apparatus 1500 has the function of realizing the corresponding steps performed by the terminal device or the network device in the above method; the above-mentioned functions can be realized by hardware, and can also be realized by executing corresponding software by hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the device 1500 in FIG. 15 may also be a chip or a chip system, for example: a system on chip (system on chip, SoC).
  • SoC system on chip
  • a communication device 1600 includes a processor 1610 and an interface circuit 1620 .
  • the processor 1610 and the interface circuit 1620 are coupled to each other.
  • the interface circuit 1620 may be a transceiver or an input/output interface.
  • the communication device 1600 may further include a memory 1630 for storing instructions executed by the processor 1610 or storing input data required by the processor 1610 to execute the instructions or storing data generated by the processor 1610 after executing the instructions.
  • the processor 1610 is used to execute the functions of the above-mentioned processing module 1510
  • the interface circuit 1620 is used to execute the functions of the above-mentioned transceiver module 1520 .
  • the communication device may include a transceiver unit and a processing unit.
  • the transceiver unit may be an input-output circuit and/or a communication interface;
  • the processing unit is an integrated processor or a microprocessor or an integrated circuit.
  • the network device chip When the communication device 1600 is a chip applied to a network device, the network device chip implements the functions of the network device in the above method embodiments.
  • the network device chip receives information from other modules in the network device (such as radio frequency modules or antennas), and the information is sent to the network device by the terminal device; or, the network device chip sends information to other modules in the network device (such as radio frequency modules or antenna) to send information, which is sent by the network device to the terminal device.
  • Fig. 17 shows a schematic structural diagram of a simplified communication device.
  • the communication device is a base station as an example.
  • the base station can be applied to the system shown in FIG. 1 , and can be the scheduling node in FIG. 1 , executing the functions of the network equipment in the foregoing method embodiments.
  • the communications device 1700 may include a processor 1722 .
  • a transceiver 1710 and memory 1721 may also be included.
  • the processor 1722 is configured to support the communication device 1700 to perform corresponding functions in the above method, and the transceiver 1710 may be used by the communication device to perform communication, for example, to send the above first indication information and the like.
  • the memory 1721 is coupled with the processor 1722 and can be used to save the programs and data necessary for the communication device 1700 to realize various functions.
  • the transceiver 1710 may be a wireless transceiver, and may be used to support the communication device 1700 to receive and send signaling and/or data through a wireless air interface.
  • the transceiver 1710 may also be referred to as a transceiver unit or a communication unit, and the transceiver 1710 may include one or more radio frequency units 1712 and one or more antennas 1711, where the radio frequency unit is such as a remote radio unit (remote radio unit, RRU) Or an active antenna unit (active antenna unit, AAU), which can be specifically used for the transmission of radio frequency signals and the conversion of radio frequency signals and baseband signals, and the one or more antennas can be specifically used for radiating and receiving radio frequency signals.
  • the transceiver 1710 may only include the above radio frequency unit, and at this time the communication device 1700 may include a transceiver 1710 , a memory 1721 , a processor 1722 and an antenna 1711 .
  • the memory 1721 and the processor 1722 can be integrated or independent of each other. As shown in FIG. 17 , the memory 1721 and the processor 1722 can be integrated into the control unit 1720 of the communication device 1700 .
  • the control unit 1720 may include a baseband unit (baseband unit, BBU) of an LTE base station, and the baseband unit may also be called a digital unit (digital unit, DU), or the control unit 1720 may include 5G and future wireless access DU and/or CU in the base station under technology.
  • BBU baseband unit
  • DU digital unit
  • the above-mentioned control unit 1720 can be composed of one or more antenna panels, where multiple antenna panels can jointly support a wireless access network of a single access standard (such as an LTE network), and multiple antenna panels can also respectively support wireless access networks of different access standards. Radio access network (such as LTE network, 5G network or other networks).
  • the memory 1721 and processor 1722 may serve one or more antenna panels. That is to say, the memory 1721 and the processor 1722 may be separately set on each antenna panel. It is also possible that multiple antenna panels share the same memory 1721 and processor 1722 .
  • each antenna panel may be provided with a necessary circuit, for example, the circuit may be used to realize the coupling of the memory 1721 and the processor 1722 .
  • the above transceiver 1710, processor 1722 and memory 1721 may be connected through a bus structure and/or other connection media.
  • the processor 1722 can perform baseband processing on the data to be sent, and then output the baseband signal to the radio frequency unit, and the radio frequency unit performs radio frequency processing on the baseband signal and passes the radio frequency signal through the antenna Sent in the form of electromagnetic waves.
  • the radio frequency unit 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 1722, and the processor 1722 converts the baseband signal into data and converts the data to process.
  • the transceiver 1710 can be used to perform the above steps performed by the interface circuit 1620 .
  • the processor 1722 can be used to invoke instructions in the memory 1721 to perform the above steps performed by the processor 1610 .
  • the terminal device chip implements the functions of the terminal device in the above method embodiment.
  • the terminal device chip receives information from other modules in the terminal device (such as radio frequency modules or antennas), and the information is sent to the terminal device by the network device; or, the terminal device chip sends information to other modules in the terminal device (such as radio frequency modules or antenna) to send information, which is sent by the terminal device to the network device.
  • Fig. 18 shows a schematic structural diagram of a simplified terminal device.
  • the terminal device is taken as an example of a mobile phone.
  • the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used for processing the communication protocol and communication data, controlling the on-board unit, executing software programs, and processing data of the software programs.
  • Memory is primarily used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal.
  • Antennas are 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 equipment 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 then outputs the baseband signal to the radio frequency circuit.
  • 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. 18 Only one memory and processor are shown in FIG. 18 . In an actual device product, there may be one or more processors and one or more memories.
  • a memory may also be called a storage medium or a storage device. The memory may be set independently of the processor, or may be integrated with the processor, which is not limited in this embodiment of the present application.
  • the antenna and the radio frequency circuit with the transceiver function may be regarded as the transceiver unit of the terminal device, and the processor with the processing function may be regarded as the processing unit of the terminal device.
  • the terminal device includes a transceiver unit 1810 and a processing unit 1820 .
  • the transceiver unit 1810 may also be called a transceiver, a transceiver, a transceiver device, and the like.
  • the processing unit 1820 may also be called a processor, a processing board, a processing module, a processing device, and the like.
  • the device in the transceiver unit 1810 for realizing the receiving function can be regarded as a receiving unit
  • the device in the transceiver unit 1810 for realizing the sending function can be regarded as a sending unit, that is, the transceiver unit 1810 includes a receiving unit and a sending unit.
  • the transceiver unit 1810 may sometimes be called a transceiver, a transceiver, or a transceiver circuit.
  • the receiving unit may sometimes be called a receiver, a receiver, or a receiving circuit, etc.
  • the sending unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit, etc.
  • the transceiving unit 1810 is used to perform the sending and receiving operations of the terminal device in the above method embodiments, and the processing unit 1820 is used to perform other operations on the terminal device in the above method embodiments except the transceiving operation.
  • the transceiver unit 1810 can be used to perform the sending step and the receiving step in the embodiment shown in FIG. 2, FIG. 11, FIG. 13 or FIG. 14, and/or to support the Other processes of technology.
  • the processing unit 1820 may be used to perform steps other than the receiving step or the sending step in the embodiment shown in FIG. 2 , FIG. 11 , FIG. 13 , or FIG. 14 , and/or other processes for supporting the techniques described herein .
  • the embodiment of the present application also provides a communication system.
  • the communication system includes a network device and multiple terminal devices, or may further include more network devices and multiple terminal devices.
  • the communication system includes a network device and a terminal device, such as a terminal device, for realizing the above-mentioned relevant functions in FIG. 2 , FIG. 11 , FIG. 13 or FIG. 14 .
  • the network devices are respectively used to realize the functions of the relevant network devices in FIG. 2 , FIG. 11 , FIG. 13 or FIG. 14 .
  • the terminal device is used to realize the functions of the relevant terminal device in FIG. 2 , FIG. 11 , FIG. 13 or FIG. 14 above.
  • FIG. 2 , FIG. 11 , FIG. 13 or FIG. 14 for details, please refer to relevant descriptions in the foregoing method embodiments, and details are not repeated here.
  • An embodiment of the present application also provides a computer-readable storage medium, including instructions, which, when run on a computer, cause the computer to execute the method performed by the network device in FIG. 2 , FIG. 11 , FIG. 13 or FIG. 14 ; or when it When running on a computer, the computer is made to execute the method executed by the terminal device in FIG. 2 , FIG. 11 , FIG. 13 or FIG. 14 .
  • An embodiment of the present application also provides a computer program product, including instructions, which, when run on a computer, cause the computer to perform the method performed by the network device in FIG. 2 , FIG. 11 , FIG. 13 or FIG. 14 ; When running on the computer, the computer is made to execute the method executed by the terminal device in FIG. 2 , FIG. 11 , FIG. 13 or FIG. 14 .
  • An embodiment of the present application provides a chip system, the chip system includes a processor, and may also include a memory, for implementing the functions of the network device or the first terminal device in the aforementioned method; or for implementing the network device and the terminal in the aforementioned method function.
  • the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • processor in the embodiments of the present application may be a central processing unit (central processing unit, CPU), and may also be other general processors, digital signal processors (digital signal processor, DSP), application specific integrated circuits (application specific integrated circuit, ASIC), field programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof.
  • CPU central processing unit
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general-purpose processor can be a microprocessor, or any conventional processor.
  • the method steps in the embodiments of the present application may be implemented by means of hardware, or may be implemented by means of a processor executing software instructions.
  • the software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory (random access memory, RAM), flash memory, read-only memory (Read-Only Memory, ROM), programmable read-only memory (programmable ROM) , PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically erasable programmable read-only memory (electrically EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM or known in the art any other form of storage medium.
  • An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium.
  • the storage medium may also be a component of the processor.
  • the processor and storage medium can be located in the ASIC.
  • the ASIC may be located in the access network device or the terminal device.
  • the processor and the storage medium may also exist in the access network device or the terminal device as discrete components.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product comprises one or more computer programs or instructions. When the computer program or instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are executed in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • the computer program or instructions may be stored in or transmitted via a computer-readable storage medium.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server integrating one or more available media.
  • the available medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; it may also be an optical medium, such as a DVD; it may also be a semiconductor medium, such as a solid state disk (solid state disk, SSD).
  • a magnetic medium such as a floppy disk, a hard disk, or a magnetic tape
  • an optical medium such as a DVD
  • it may also be a semiconductor medium such as a solid state disk (solid state disk, SSD).
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

Abstract

本申请提供了一种资源指示方法和通信装置，用以解决数据传输过程中，控制信令冗余度过高的问题，有利于提高网络的传输效率，同时降低了被调度节点的功耗。该方法包括：终端设备在第一搜索空间监测并接收第一指示信息，该第一指示信息用于指示接收数据的频域资源，在第二搜索空间监测并接收第二指示信息，该第二指示信息用于指示接收所述数据的起始传输时间，第一搜索空间的监测周期大于第二搜索空间的监测周期；终端设备根据频域资源和起始传输时间，接收来自网络设备的数据。

Description

资源指示方法和通信装置
本申请要求于2021年09月02日提交中国专利局、申请号为202111028825.0、申请名称为“资源指示方法和通信装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种资源指示方法和通信装置。
背景技术
调度节点和被调度节点之间的数据传输方式通常分为半静态调度(semi persistent scheduling，SPS)(也称为配置调度(configured grant,CG)))和动态调度(dynamic grant，DG)。其中，SPS的配置方式为：发送一次资源分配信令后，在一定时间内按照分配的资源进行数据传输，不需要再发送新的资源分配信令，信令冗余比较低。DG的配置方式为：每次数据传输都需要发送资源分配信令，信令冗余比较高。
调度节点和被调度节点之间的传输数据如果采用上述SPS(CG)方式进行数据传输，则需要等待预定义的时间达到后才能够传输，增加了数据传输时延，而且每次传输采用的资源不变，降低了调度灵活性。为了降低传输时延，提升调度灵活性，调度节点和被调度节点之间的传输数据可以采用上述DG方式进行数据传输，但这种方式所需要的控制信令的比特数比较大，一般可以达到几十到几百比特，这种调度方式不仅增加了控制信令的冗余，降低了网络传输效率，而且频繁的、大的控制信道的盲检也会导致被调度节点的功耗过高。
发明内容
本申请提供了一种资源指示方法和通信装置，用以解决数据传输过程中，控制信令冗余度过高的问题，有利于提高网络的传输效率，同时降低了被调度节点的功耗。
第一方面，本申请提供一种资源指示方法，该方法的执行主体可以是终端设备，也可以是应用于终端设备中的芯片。下面以执行主体是终端设备为例进行描述。该方法包括：终端设备在第一搜索空间监测并接收所述第一指示信息，该第一指示信息用于指示第一数据的频域资源。终端设备在第二搜索空间监测并接收第二指示信息，该第二指示信息用于指示第一数据的起始传输时间，上述第一搜索空间的监测周期大于第二搜索空间的监测周期。终端设备根据该频域资源和起始传输时间，接收该第一数据。
本申请中，终端设备接收网络设备在第一搜索空间的监测周期发送的第一指示信息，由于第一搜索空间的监测周期大于第二搜索空间的监测周期，避免在第二搜索空间重复发送频率资源，造成调度信令传输冗余度高的问题。采用本申请的方案，可以减少频域资源信息的接收次数，从而减少调度信令传输冗余度，提高网络的传输效率，降低终端设备的功耗，终端设备通过接收网络设备在第二搜索空间的监测周期发送的第二指示信息，相对于半静态调度而言，可以在数据到在达时，及时触发数据传输，降低传输数据的等待时延。在一种可能的设计中，该第一指示信息还用于指示下列信息中的至少一种：第一数据的调 制编码方式，或第一数据的时域资源的大小；或者，该第二指示信息还用于指示下列信息中的至少一种：第一数据的调制编码方式，或第一数据的时域资源的大小。采用第一指示信息指示调制编码方式或第一数据的时域资源的大小的方案，由于第一搜索空间的监测周期大于第二搜索空间的监测周期，可以避免在第二搜索空间发送该信令，造成调度信令传输冗余度高的问题。采用第二指示信息指示调制编码方式或第一数据的时域资源的大小的方案，网络设备可以在数据传输前，可以根据待传输数据当时信道条件、数据包大小中的至少一个因素，确定数据的调制编码方式或数据时域资源大小。例如在信道条件好时，或者数据包短时，可以采用更高频谱效率的调制编码方式或者采用更小的数据时域资源，从而达到提升系统效率的目的。
在一种可能的设计中，所述第一指示信息还包括下列信息中的至少一个：下行控制信令格式标识、载波标识、带宽部分标识、冗余版本、新数据标识、混合自动重传请求(hybrid automatic repeat request，HARQ)进程号、下行分配索引、物理上行控制信道(physical uplink control channel，PUCCH)资源标识、PUCCH的传输功率命令、物理下行共享信道(physical downlink shared channel，PDSCH)HARQ反馈定时标识、虚拟资源块(virtual resource block，VRB)到物理资源块(physical resource block，PRB)映射方式、PRB绑定大小标识、速率匹配标识、触发零功率信道状态信息参考信号(zero power channel state information-reference signal，ZP CSI-RS)、天线端口、传输配置标识、探测参考信号(sounding reference signal，SRS)请求、解调参考信号(demodulation reference signal，DMRS)序列初始化。
在一种可能的设计中，该第二指示信息的大小小于该第一指示信息的大小。
本申请通过采用第一搜索空间的监测周期的第一指示信息指示变化相对缓慢的信息，减少了第二搜索空间的监测周期的第二指示信息的大小，降低了调度信令传输冗余度，提高网络的传输效率，降低终端设备的功耗，而通过第二搜索空间的监测周期的第二指示信息指示变化相对较快的信息，保证了调度信令传输的及时性，提升了系统效率，第二指示信息的大小小于第一指示信息，降低了终端设备检测调度信令的功耗。
在一种可能的设计中，该第二指示信息采用序列或者物理下行控制信道承载。
在本申请中，采用序列来承载第二指示信息，可以获得更好的传输可靠性。
在本申请中，采用物理下行控制信道承载第二指示信息，可以承载更多的信息量。
在一种可能的设计中，上述方法还包括：接收配置信息，该配置信息用于配置所述第一搜索空间的监测周期或第二搜索空间的监测周期中的至少一个。
在本申请中，可以根据通信数据的传输周期性、通信信道环境、终端设备的移动性、网络的负载情况、终端设备的功耗等配置第一搜索空间的监测周期或第二搜索空间的监测周期中的至少一个，以在满足数据传输要求的基础上尽可能节省终端设备的功耗。
在一种可能的设计中，该配置信息至少包括下列信息中的至少一个：第一搜索空间的起始位置、第一搜索空间的频域资源大小、第一搜索空间的频域资源位置、第一搜索空间的持续监测时长或第一搜索空间的监测时隙内的监测符号位置。
在一种可能的设计中，该配置信息至少还包括下列信息中的至少一个：第二搜索空间的起始位置、第二搜索空间频域资源大小、第二搜索空间的频域资源位置、第二搜索空间的持续监测时长、第二搜索空间内相邻两个监测时隙之间的间隔时隙或第二搜索空间的监 测时隙内的监测符号位置。
本申请在配置信息中新增第二搜索空间内相邻两个监测时隙之间的间隔时隙，可以减少终端设备在持续监测时长内监测第二指示信息的时间，从而可以进一步降低终端设备的功耗。
在一种可能的设计中，上述方法还包括，第一搜索空间的持续监测时长小于第二搜索空间的持续监测时长。通过该方法，可以进一步减少终端设备监测调度信令的功耗。
在一种可能的设计中，传输第二指示信息的频域资源与第一数据的频域资源相同，或传输第二指示信息的频域资源大小小于第一数据的频域资源大小。
本申请中传输第二指示信息的频域资源与第一数据的频域资源相同，此时第二指示信息和第一数据可以共享用于解调的参考信号以提升信道估计性能，或者承载第二指示信息的序列可以作为用于数据解调的参考信号从而减少额外的用于数据解调的参考信号的传输冗余，或者提升信道估计性能。
本申请中，传输第二指示信息的频域资源大小小于接收数据的频域资源大小，可以降低终端设备的监测功耗。
在一种可能的设计中，第二搜索空间的频域资源与所述第一搜索空间的频域资源相同，或所述第二搜索空间的频域资源大小小于所述第一搜索空间的频域资源大小。
本申请中第二搜索空间的频域资源与第一搜索空间的频域资源相同，可以避免终端设备在监测控制信令时的频繁的带宽部分切换带来的复杂度增加。
本申请中第二搜索空间的频域资源大小小于第一搜索空间的频域资源大小，可以降低终端设备监测第二指示信息的监测功耗。
在一种可能的设计中，上述方法还包括：根据在所述第二搜索空间中接收到所述第二指示信息所在的时隙位置，调整所述第二搜索空间的起始位置或所述第二搜索空间的监测周期中的至少一个。
本申请中，根据在第二搜索空间中接收到所述第二指示信息所在的时隙位置，调整以后的第二搜索空间的起始位置或第二搜索空间的监测周期中的至少一个，方便系统根据数据的传输时间来更设置更准确的监测第二指示信息的时间，降低终端设备监测第二指示信息的监测功耗。
在一种可能的设计中，上述方法还包括：接收第三指示信息，所述第三指示信息指示所述第二搜索空间的起始位置或所述第二搜索空间的监测周期中的至少一个。
本申请中，通过第三指示信息指示之后第二搜索空间的起始位置或第二搜索空间的监测周期中的至少一个，方便系统根据第一数据的传输时间来更设置更准确的监测第二指示信息的时间，降低终端设备监测第二指示信息的监测功耗。
在一种可能的设计中，上述方法还包括：停止在所述第二搜索空间当前监测周期内的剩余持续监测时长对所述第二指示信息的监测。
本申请中，终端设备在监测到第二指示信息后，停止在所述第二搜索空间当前监测周期内的剩余持续监测时长对所述第二指示信息的监测，降低终端设备监测第二指示信息的监测功耗。
第二方面，本申请提供一种资源指示方法，该方法的执行主体可以是终端设备，也可以是应用于终端设备中的芯片。下面以执行主体是终端设备为例进行描述。该方法包括： 终端设备在第三搜索空间监测并接收第四指示信息，所述第四指示信息用于指示第二数据的频域资源；终端设备在第一传输机会发送第五指示信息，所述第五指示信息用于指示所述第二数据的起始传输时间，所述第三搜索空间的监测周期大于所述第一传输机会的传输机会周期；终端设备根据所述频域资源和所述起始传输时间，发送所述第二数据。
本申请中，终端设备接收网络设备在第三搜索空间的监测周期发送的第四指示信息，预先分配好终端设备可以使用的上行传输资源，由于第三搜索空间的监测周期大于第一传输机会的传输机会周期，避免了终端设备设备在第一传输机会重复发送期望用于数据传输的频域资源，造成信令传输冗余度高的问题。采用本申请的方案，可以减少频域资源信息的发送次数，从而减少调度信令传输冗余度，提高网络的传输效率，降低终端设备的功耗，之后终端设备在有数据达到后，在第一传输机会的传输周期发送第五指示信息，通知网络设备此时终端设备期望的数据传输的时域资源，避免了为降低时延而带来的传输资源浪费的问题。
在一种可能的设计中，所述第四指示信息还用于指示下列信息中的至少一种：所述第二数据的调制编码方式，或所述第二数据的时域资源的大小；或者，所述第五指示信息还用于指示下列信息中的至少一种：所述第二数据的调制编码方式，或所述第二数据的时域资源的大小。采用第四指示信息指示调制编码方式或第二数据的时域资源的大小的方案，由于第三搜索空间的监测周期大于第一传输机会的传输机会周期，可以避免在第一传输机会的传输机会周期发送该信令，造成调度信令传输冗余度高的问题。采用第五指示信息指示调制编码方式或第二数据的时域资源的大小的方案，终端设备可以在数据传输前，可以根据待传输数据当时信道条件、数据包大小中的至少一个因素，确定数据的调制编码方式或数据时域资源大小。例如在信道条件好时，或者数据包短时，可以采用更高频谱效率的调制编码方式或者采用更小的数据时域资源，从而达到提升系统效率的目的。
在一种可能的设计中，所述第五指示信息还包括下列信息中的至少一个：下行控制信令格式标识、载波标识、上行载波或补充上行载波标识、带宽部分标识、跳频标识、冗余版本、新数据标识、HARQ进程号、下行指配索引DAI、SRS资源标识、预编码信息和层数、天线端口、SRS请求、CSI请求、码块组(code block group，CBG)传输信息、相位跟踪参考信号(phase tracking reference signal，PTRS))和DMRS的关联关系、贝塔偏移(beta_offset)标识、DMRS序列初始化。
在一种可能的设计中，所述第五指示信息采用序列、物理上行控制信道或物理上行共享信道承载。
在本申请中，采用序列来承载第五指示信息，可以获得更好的传输可靠性。
在本申请中，采用物理上行控制信道或者物理上行共享信道承载第五指示信息，可以承载更多的信息量。
在一种可能的设计中，所述方法还包括：接收配置信息，所述配置信息用于配置所述第三搜索空间的监测周期或所述第一传输机会的传输机会周期中的至少一个。
在本申请中，可以根据通信数据的传输周期性、通信信道环境、终端设备的移动性、网络的负载情况、终端设备的功耗等配置第三搜索空间的监测周期或第一传输机会的传输机会周期中的至少一个，以在满足数据传输要求的基础上尽可能节省终端设备的功耗。
在一种可能的设计中，该配置信息至少包括下列信息中的至少一个：第三搜索空间的 起始位置、第三搜索空间的频域资源大小、第三搜索空间的频域资源位置、第三搜索空间的持续监测时长或第三搜索空间的监测时隙内的监测符号位置。
在一种可能的设计中，该配置信息至少还包括下列信息中的至少一个：第一传输机会的起始位置、第一传输机会的频域资源大小、第一传输机会的频域资源位置、第一传输机会的传输机会时隙期持续时长、第一传输机会周期内相邻两个传输机会时隙之间的间隔时隙或第一传输机会传输时隙内的传输机会所在符号位置。
在一种可能的设计中，上述方法还包括，第三搜索空间的持续监测时长小于第一传输机会的传输机会时隙持续时长。通过该方法，可以进一步减少终端设备监测调度信令的功耗。
在一种可能的设计中，所述第五指示信息的频域资源与所述第二数据的频域资源相同，或所述第五指示信息的频域资源大小小于所述第二数据的频域资源大小。
本申请中，传输第五指示信息的频域资源与第二数据的频域资源相同，此时第五指示信息和数据可以共享用于解调的参考信号以提升信道估计性能，或者承载第五指示信息的序列可以作为用于数据解调的参考信号从而减少额外的用于数据解调的参考信号的传输冗余，或者提升信道估计性能。
本申请中，传输第五指示信息的频域资源大小小于第二数据的频域资源大小，可以提升终端设备发送第五指示信息的功率谱密度，提升第五指示信息传输性能。
第三方面，本申请提供一种资源指示方法，该方法的执行主体可以是网络设备，也可以是应用于网络设备中的芯片。下面以执行主体是网络设备为例进行描述。该方法包括：在第一搜索空间发送第一指示信息，所述第一指示信息用于指示第一数据的频域资源；在第二搜索空间发送第二指示信息，所述第二指示信息用于指示所述第一数据的起始传输时间，所述第一搜索空间的监测周期大于所述第二搜索空间的监测周期；根据所述频域资源和所述起始传输时间，向所述终端设备发送所述第一数据。
在一种可能的设计中，所述第一指示信息还用于：指示所述第一数据的调制编码方式，和/或，指示所述第一数据的时域资源的大小；或者，所述第二指示信息还用于：指示所述第一数据的调制编码方式，和/或，指示所述第一数据的时域资源的大小。
在一种可能的设计中，所述第一指示信息还包括下列信息中的至少一个：下行控制信令格式标识、载波标识、带宽部分标识、冗余版本、新数据标识、HARQ进程号、下行分配索引、PUCCH资源标识、PUCCH的传输功率命令、PDSCH HARQ反馈定时标识、VRB到PRB映射方式、PRB绑定大小标识、速率匹配标识、触发ZP CSI-RS、天线端口、传输配置标识、SRS请求、DMRS序列初始化。
在一种可能的设计中，该第二指示信息的大小小于该第一指示信息的大小。
在一种可能的设计中，所述第二指示信息采用序列或者物理下行控制信令承载。
在本申请中，采用序列来承载第二指示信息，可以获得更好的传输可靠性。
在本申请中，采用物理下行控制信道承载第二指示信息，可以承载更多的信息量。
在一种可能的设计中，所述方法还包括：发送配置信息，所述配置信息用于配置所述第一搜索空间的监测周期或所述第二搜索空间的监测周期中的至少一个。
在一种可能的设计中，该配置信息至少包括下列信息中的至少一个：第一搜索空间的起始位置、第一搜索空间的频域资源大小、第一搜索空间的频域资源位置、第一搜索空间 的持续监测时长或第一搜索空间的监测时隙内的监测符号位置。
在一种可能的设计中，该配置信息至少还包括下列信息中的至少一个：第二搜索空间的起始位置、第二搜索空间频域资源大小、第二搜索空间的频域资源位置、第二搜索空间的持续监测时长、第二搜索空间内相邻两个监测时隙之间的间隔时隙或第二搜索空间的监测时隙内的监测符号位置。本申请在配置信息中新增第二搜索空间内相邻两个监测时隙之间的间隔时隙，从而可以减少在持续监测时长内终端监测第二信令的时间，进一步降低终端设备的功耗。
在一种可能的设计中，上述方法还包括，第一搜索空间的持续监测时长小于第二搜索空间的持续监测时长。通过该方法，可以进一步减少终端设备监测调度信令的功耗。
在一种可能的设计中，所述第二指示信息的频域资源与所述第一数据的频域资源相同，或所述第二指示信息的频域资源大小小于所述第一数据的频域资源大小。
在一种可能的设计中，所述第二搜索空间的频域资源与所述第一搜索空间的频域资源相同，或所述第二搜索空间的频域资源大小小于所述第一搜索空间的频域资源大小。
在一种可能的设计中，所述方法还包括：根据在第二搜索空间中发送第二指示信息所在的时隙位置，确定所述第二搜索空间的起始位置或第二搜索空间的监测周期中的至少一个。
在一种可能的设计中，所述方法还包括：发送第三指示信息，所述第三指示信息指示所述第二搜索空间的起始位置或所述第二搜索空间的监测周期中的至少一个。
上述第三方面中任一种可能的实现方式的有益效果可参照上述第一方面的相关描述，此处不再赘述。
第四方面，本申请提供一种通信方法，该方法的执行主体可以是网络设备，也可以是应用于网络设备中的芯片。下面以执行主体是网络设备为例进行描述。在第三搜索空间发送第四指示信息，所述第四指示信息用于指示第二数据的频域资源；在第一传输机会监测并接收第五指示信息，所述第五指示信息用于指示所述第二数据的起始传输时间，所述第三搜索空间的监测周期大于所述第一传输机会空间的传输机会周期；根据所述频域资源和所述起始传输时间，接收所述第二数据。从而可以避免为了降低时延而带来的传输资源浪费的问题。
本申请中网络设备通过第四指示信息预先分配好终端设备待使用的上行传输资源，但为了避免传输资源浪费，终端设备只有在有数据要传输时才使用该上行传输资源，终端设备在数据达到后通过发送第五指示信息通知网络设备，并在第四指示信息和第五指示信息指示的时域资源进行上行数据的发送，避免了为了降低时延而带来的传输资源浪费的问题。
在一种可能的设计中，所述第四指示信息还用于：所述第二数据的调制编码方式，和/或，所述第二数据的时域资源的大小；或者，所述第五指示信息还用于：所述第二数据的调制编码方式，和/或，所述第二数据的时域资源的大小。
在一种可能的设计中，所述第一指示信息还包括下列信息中的至少一个：下行控制信令格式标识、载波标识、上行载波或补充上行载波标识、带宽部分标识、跳频标识、冗余版本、新数据标识、HARQ进程号、下行指配索引DAI、SRS资源标识、预编码信息和层数、天线端口、SRS请求、CSI请求、CBG传输信息、PTRS和DMRS的关联关系、贝塔偏移标识、DMRS序列初始化。
在一种可能的设计中，所述第五指示信息采用序列、物理上行控制信道或物理上行共享信道承载。
在一种可能的设计中，所述方法还包括：发送配置信息，所述配置信息用于配置所述第三搜索空间的监测周期或所述第一传输机会的传输机会周期中的至少一个。
在一种可能的设计中，该配置信息至少包括下列信息中的至少一个：第三搜索空间的起始位置、第三搜索空间的频域资源大小、第三搜索空间的频域资源位置、第三搜索空间的持续监测时长或第三搜索空间的监测时隙内的监测符号位置。
在一种可能的设计中，该配置信息至少还包括下列信息中的至少一个：第一传输机会的起始位置、第一传输机会的频域资源大小、第一传输机会的频域资源位置、第一传输机会的传输机会时隙期持续时长、第一传输机会周期内相邻两个传输机会时隙之间的间隔时隙或第一传输机会传输时隙内的传输机会所在符号位置。
在一种可能的设计中，上述方法还包括，第三搜索空间的持续监测时长小于第一传输机会的传输机会时隙持续时长。通过该方法，可以进一步减少终端设备监测调度信令的功耗。
在一种可能的设计中，所述第五指示信息的频域资源与所述第二数据的频域资源相同，或所述第五指示信息的频域资源大小小于所述第二数据的频域资源大小。
上述第四方面中任一种可能的实现方式的有益效果可参照上述第二方面的相关描述，此处不再赘述。
第五方面，提供一种通信装置，有益效果可以参见第一方面的描述，此处不再赘述。所述通信装置具有实现上述第一方面的方法实例中行为的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
在一个可能的设计中，所述通信装置包括：处理模块和收发模块。该处理模块用于控制该收发模块在第一搜索空间监测并接收第一指示信息，所述第一指示信息用于指示第一数据的频域资源，以及在第二搜索空间监测并接收第二指示信息，所述第二指示信息用于指示所述第一数据的起始传输时间，所述第一搜索空间的监测周期大于所述第二搜索空间的监测周期。该处理模块还用于：根据第一指示信息和第二指示信息，确定频域资源和起始传输时间，以及控制收发模块接收所述第一数据。这些模块可以执行上述第一方面方法示例中的相应功能，具体参见方法示例中的详细描述，此处不做赘述。
第六方面，提供一种通信装置，有益效果可以参见第二方面的描述，此处不再赘述。所述通信装置具有实现上述第二方面的方法实例中行为的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
在一个可能的设计中，所述通信装置包括：处理模块和收发模块。该处理模块用于控制该收发模块在第三搜索空间监测并接收第四指示信息，所述第四指示信息用于指示第二数据的频域资源。该收发模块用于：在第一传输机会发送第五指示信息，所述第五指示信息用于指示所述第二数据的起始传输时间，所述第三搜索空间的监测周期大于第一传输机会空间的传输机会周期。该处理模块还用于：根据频域资源和所述起始传输时间，控制该收发模块发送所述第二数据。这些模块可以执行上述第二方面方法示例中的相应功能，具 体参见方法示例中的详细描述，此处不再赘述。
第七方面，提供一种通信装置，有益效果可以参见第三方面的描述，此处不再赘述。所述通信装置具有实现上述第三方面的方法实例中行为的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
在一个可能的设计中，所述通信装置包括：处理模块和收发模块。该收发模块用于：在第一搜索空间发送第一指示信息，所述第一指示信息用于指示第一数据的频域资源；以及，在第二搜索空间发送第二指示信息，所述第二指示信息用于指示所述第一数据的起始传输时间，所述第一搜索空间的监测周期大于所述第二搜索空间的监测周期；该处理模块用于：根据所述频域资源和所述起始传输时间，控制该收发模块发送所述第一数据。这些模块可以执行上述第三方面方法示例中的相应功能，具体参见方法示例中的详细描述，此处不做赘述。
第八方面，提供一种通信装置，有益效果可以参见第四方面的描述，此处不再赘述。所述通信装置具有实现上述第四方面的方法实例中行为的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
在一个可能的设计中，所述通信装置包括：处理模块和收发模块。该收发模块用于：在第三搜索空间发送第四指示信息，所述第四指示信息用于指示第二数据的频域资源。该处理模块用于控制该收发模块在第一传输机会监测并接收第五指示信息，所述第五指示信息用于指示所述第二数据的起始传输时间，所述第三搜索空间的监测周期大于所述第一传输机会空间的传输机会周期。该处理模块还用于：根据所述频域资源和起始传输时间，控制该收发模块所述第二数据。这些模块可以执行上述第四方面方法示例中的相应功能，具体参见方法示例中的详细描述，此处不做赘述。
第九方面，提供了一种通信装置，该通信装置可以为上述方法实施例中的终端设备，或者为设置在终端设备中的芯片。该通信装置包括通信接口以及处理器，可选的，还包括存储器。其中，该存储器用于存储计算机程序或指令，处理器与存储器、通信接口耦合，当处理器执行所述计算机程序或指令时，使通信装置执行上述方法实施例中由终端设备所执行的方法。
第十方面，提供了一种通信装置，该通信装置可以为上述方法实施例中的网络设备，或者为设置在网络设备中的芯片。该通信装置包括通信接口以及处理器，可选的，还包括存储器。其中，该存储器用于存储计算机程序或指令，处理器与存储器、通信接口耦合，当处理器执行所述计算机程序或指令时，使通信装置执行上述方法实施例中由网络设备所执行的方法。
第十一方面，提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码并运行时，使得上述各方面中由终端设备执行的方法被执行。
第十二方面，提供了一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码被运行时，使得上述各方面中由网络设备执行的方法被执行。
第十三方面，本申请提供了一种芯片系统，该芯片系统包括处理器，用于实现上述各方面的方法中终端设备的功能。在一种可能的设计中，所述芯片系统还包括存储器，用于 保存程序指令和/或数据。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。
第十四方面，本申请提供了一种芯片系统，该芯片系统包括处理器，用于实现上述各方面的方法中网络设备的功能。在一种可能的设计中，所述芯片系统还包括存储器，用于保存程序指令和/或数据。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。
第十五方面，本申请提供了一种计算机可读存储介质，该计算机可读存储介质存储有计算机程序，当该计算机程序被运行时，实现上述各方面中由终端设备执行的方法。
第十六方面，本申请提供了一种计算机可读存储介质，该计算机可读存储介质存储有计算机程序，当该计算机程序被运行时，实现上述各方面中由网络设备执行的方法。
附图说明
图1是一种通信系统的示意图；
图2是本申请实施例提供的一种资源指示方法的示意性流程图；
图3是本申请实施例提供的一种承载第二指示信息序列的资源配置方式的示意图；
图4是本申请实施例提供的另一种承载第二指示信息序列的资源配置方式的示意图；
图5是本申请实施例提供的第一搜索空间的监测周期与第二搜索空间监测周期的关系示意图；
图6是本申请实施例提供的一种第二搜索空间的配置方式的示意图；
图7是本申请实施例提供的第二搜索空间的监测期间隔的配置方式的示意图；
图8是本申请实施例提供的一种第二指示信息的监测方式示意图；
图9是本申请实施例提供的另一种第二指示信息的监测方式示意图；
图10是本申请实施例提供的再一种第二指示信息的监测方式示意图；
图11是本申请实施例提供的另一种资源指示方法的示意性流程图；
图12是本申请实施例提供的一种第一传输机会的配置方式的示意图；
图13是本申请实施例提供的再一种资源指示方法的示意性流程图；
图14是本申请实施例提供的再一种资源指示方法的示意性流程图；
图15是本申请实施例提供的一种通信装置的结构示意图；
图16是本申请实施例提供的另一种通信装置的结构示意图；
图17是本申请实施例提供的一种简化的通信装置的结构示意图；
图18是本申请实施例提供的一种简化的终端设备的结构示意图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
本申请提供的技术方案可以应用于各种通信系统，例如：长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)系统、通用移动通信系统(universal mobile telecommunications system，UMTS)、第五代(5th generation，5G)移动通信系统、新无线(new radio，NR)系统或者其他演进的通信系统，以及5G通信系统的下一代移动通信系统等。
为便于理解本申请实施例，首先结合图1对适用于本申请实施例的通信系统进行详细介绍。
图1示出了一种通信系统100。如图1所示，该通信系统100包括至少两个通信设备，例如，调度节点110和至少一个被调度节点120，其中，调度节点110和至少一个被调度节点120之间可以通过无线连接进行数据通信。具体而言，调度节点110可以向被调度节点120发送下行数据；被调度节点120也可以向调度节点110发送上行数据。
上述通信系统中的调度节点用于确定数据传输的资源和方式，并将确定好的资源方案和数据传输方式通知被调度节点。被调度节点用于根据调度节点的指示，采用调度节点确定的资源分配方案和数据传输方式进行数据传输。这里的数据传输，包括数据的接收和数据的发送。
本申请实施例中的调度节点可以是接入网设备或无线接入网设备，它可以是传输接收点(transmission reception point，TRP)，还可以是LTE系统中的演进型基站(evolved NodeB，eNB或eNodeB)，还可以是家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(base band unit，BBU)，还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等，还可以是WLAN中的接入点(access point，AP)，还可以是NR系统中的gNB，上述调度节点还可以是城市基站、微基站、微微基站、毫微微基站等等，或者是具有调度功能的终端设备。本申请对此不作限定。
在一种网络结构中，网络设备可以包括集中单元(centralized unit，CU)节点、或分布单元(distributed unit，DU)节点、或是包括CU节点和DU节点的无线接入网络(radio access network，RAN)设备、或者是包括控制面CU节点(CU-CP节点)和用户面CU节点(CU-UP节点)以及DU节点的RAN设备。
网络设备为小区提供服务，终端设备通过网络设备分配的传输资源(例如，频域资源，或者说，频谱资源)与小区进行通信，该小区可以属于宏基站(例如，宏eNB或宏gNB等)，也可以属于小小区(small cell)对应的基站，这里的小小区可以包括：城市小区(metro cell)、微小区(micro cell)、微微小区(pico cell)、毫微微小区(femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
本申请实施例中的被调度节点是可以是终端设备，也称为用户设备(User Equipment，UE)，、移动台(mobile station，MS)、移动终端(mobile terminal，MT)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。
终端设备可以是一种向用户提供语音/数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。目前，一些终端设备的举例包括：手机(mobile phone)、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、蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal  digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等，本申请对此并不限定。
作为示例而非限定，在本申请中，终端设备可以是物联网(internet of things，IoT)系统中的终端设备。物联网是未来信息技术发展的重要组成部分，其主要技术特点是将物品通过通信技术与网络连接，从而实现人机互连，物物互连的智能化网络。示例性地，本申请实施例中的终端设备可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备是可以直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更可以通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
作为示例而非限定，在本申请实施例中，终端设备还可以是机器类型通信(machine type communication，MTC)中的终端设备。此外，终端设备还可以是作为一个或多个部件或者单元而内置于车辆的车载模块、车载模组、车载部件、车载芯片或者车载单元等，车辆通过内置的所述车载模块、车载模组、车载部件、车载芯片或者车载单元等可以实施本申请提供的方法。因此，本申请实施例也可以应用于车联网，例如车辆外联(vehicle to everything，V2X)、车间通信长期演进技术(long term evolution-vehicle，LTE-V)、车到车(vehicle-to-vehicle，V2V)技术等。
应理解，图1仅为便于理解而示出的简化示意图，该通信系统100中还可以包括其他设备，图1中未予以画出。
在无线通信系统中，为了合理分配无线资源，满足各个通信节点的需求，通常由调度节点负责确定无线资源的分配情况，并将资源分配结果通知被调度节点，被调度节点按照所分配的资源进行通信。无线资源的分配包括时域、频域、空域、码域、轨道角动量域中的一个或者多个的组合。根据无线资源分配的快慢，无线资源调度包括动态调度和半静态调度两种。在动态调度时，调度节点每个传输时间间隔(传输间隔可以是一个或多个调度单元，调度单元可以是一个或多个符号，一个或多个时隙，一个或多个子帧，一个或多个帧，一个或多个超帧，或者是从几微秒到几毫秒到几十毫秒甚至几秒)确定被调度节点使用的无线资源，调度节点通过物理层控制信令通知被调度节点其要使用的无线资源。在半静态调度时，调度节点通过高层控制信令如无线资源控制(radio resource control，RRC)信令通知被调度节点要使用的资源，该资源一旦分配并激活使用，则一直按照高层信令所指示的方式被使用，除非通过高层信令重新配置。
示例性地，动态调度时无线资源分配承载在物理下行控制信道(physical downlink control channel，PDCCH)中，半静态调度时无线资源分配承载在无线资源控制RRC信令中。动态调度由于每次资源分配都需要发送物理层控制信令，故信令冗余(overhead)比较高，半静态调度则发送一次资源分配信令后，在一定时间内按照所分配的资源使用资源， 不需要再发送信令，故信令冗余比较低。动态调度可以在每个传输时间间隔进行调度调整，具有更高的灵活性，因此对于一些突发业务通常采用动态调度，例如，网页浏览业务。半静态调度由于较长时间内都不进行调度调整，因此常用于周期性业务，例如，语音业务。5G系统中，对于下行半静态调度，采用SPS，对于上行半静态调度，也称为CG，或者无调度(grant free)。
示例性地，一些3D视觉交互系统，如虚拟现实(virtual reality，VR)、增强现实(augmented reality，AR)、混合现实(mixed reality，MR)和云游戏(cloud gaming)等应用场景(VR/AR/MR/云优秀等统称为扩展现实(extended reality，XR))的业务在信源产生的时候，具有一定的周期特性，即XR业务是按照一定的帧率，周期性传输的视频传输业务。其中，帧率是指视频每秒包含的帧数，单位为帧每秒(frame per second，fps)，周期为帧率的倒数。可以理解的是，视频帧率一般最低设置为24fps，当帧率低于24fps时，人眼会感觉到明显的卡顿。对于画面变化比较慢的视频，帧率一般为30fps，但是对于一些剧烈变化的画面一般需要60fps。目前，在XR业务中常见的帧率配置为30fps，60fps，90fps，120fps。以60fps的帧率为例，视频帧的周期为1/60＝16.67ms。但由于渲染，信源编码，路由路径选择等因素，XR业务可能相对于预期的到达时刻提前到来，也可能相对于预期的到达时刻延迟到来，这种现象可以称之为抖动。抖动的取值在数学统计上服从特定的概率分布，其中概率分布可以为高斯分布或截断高斯分布，还可以为指数分布，还可以泊松分布，还可以为其他统计分布。且抖动值通常具有一定的范围，例如3GPP评估模型中，视频帧的抖动范围为[-4ms，4ms]。
结合上面的例子，XR业务应用层的数据传输所需的资源比较大，XR业务数据包的平均速率可以达到30百万比特每秒(Mbps)，45Mbps甚至到60Mbps。以30Mbps，60fps帧率为例，每个视频帧的平均包大小为62500byte，数据包大小也服从一定的概率分布，例如在3GPP评估模型中，认为XR业务的标准差为平均包大小乘以10.5％也就是6563byte，包最大为平均包大小乘以150％也就是93750byte，最小为平均包大小乘以50％也就是31250byte，即平均包大小的一半。为了满足用户极致流畅的体验要求，XR业务对数据包的速率和时延极其敏感。典型的VR/AR的业务类型，数据包时延预算(packet delay budget，PDB)为10ms，其中，PDB为数据包或视频帧从到达调度节点开始，到被调度节点成功接收的时间阈值。
由于XR业务的具有一定的周期特性，因此XR业务可以采用半静态调度的方式，例如对于60fps的XR业务，可以分配周期为16.67ms的资源给XR业务。这种调度方式可以节省信令overhead，但是，由于XR业务到达存在抖动，因此，如果按照XR业务期望到达的周期分配资源，如果XR业务比期望达到时间早太多，则需要等待一段时间直到半静态调度所分配的无线资源才能传输数据；如果XR业务比期望到达的时间晚时，已经错过了半静态调度所分配的无线资源，则对应于该业务的半静态调度分配的无线资源没有使用被浪费，而晚到的数据只能推迟到半静态调度的下一个XR的无线资源上传输，增加了XR业务的时延，而且即使是之后XR业务早于预期时间到达，但由于其对应的无线资源要用于传输之前晚到的数据，会导致当前XR业务也推迟到下一个XR对应的无线资源上传输。
在一些实施例中，为了避免半静态调度造成XR业务数据传输时延增加的问题，采用动态调度的方式调度XR业务。动态调度需要每次都将所分配的资源通过物理层控制信号 传输下来，这些控制信令包括：用于指示无线资源信息的信令，如部分带宽标识、频域资源、VRB到PRB映射方式、时域资源标识、PRB捆绑大小标识、速率匹配标识；用于指示调制编码方式的信令，如调制编码方式、新数据表述、冗余版本；与HARQ相关的信令，如HARQ进程号、下行分配索引；与多天线相关的信令等等。而且在采用动态调度的方式调度XR业务时，被调度节点并不清楚每个传输间隔是否有发送给自己的信令，故需要随时进行PDCCH的监测以获取发送给自己的物理层控制信令，如果被调度节点没有成功检测到PDCCH，则认为调度节点没有发送控制信令给自己，如果成功检测到PDCCH，则按照PDCCH信令所指示的内容确定所需要通信的资源和传输的方式，这个过程称为PDCCH盲检测过程。
综上可知，动态调度XR业务时，控制信令总的比特数可以高达几十比特到上百比特，而XR业务又比较密集，每次XR业务传输网络设备均发送物理层控制信令的话，调度节点用于传输物理层控制信令的资源过多，造成调度节点用于传输数据的资源减少，效率降低。而且，被调度节点每次要按照几十到上百比特的PDCCH信令大小去进行PDCCH盲检测，PDCCH信令大小越大，被调度节点花在PDCCH盲检测上的功耗也越高。
有鉴于此，本申请实施例提供了一种资源指示方法和通信装置，终端设备接收网络设备在第一搜索空间的监测周期发送的第一指示信息，由于第一搜索空间的监测周期大于第二搜索空间的监测周期，避免在第二搜索空间重复发送频率资源，造成调度信令传输冗余度高的问题。采用本申请的方案，可以减少频域资源信息的接收次数，从而减少调度信令传输冗余度，提高网络的传输效率，降低终端设备的功耗，终端设备通过接收网络设备在第二搜索空间的监测周期发送的第二指示信息，相对于半静态调度而言，可以在数据到在达时，及时触发数据传输，降低传输数据的等待时延。
在介绍本申请提供的资源指示方法之前，先做出以下几点说明。
第一，在本文示出的实施例中，各术语及英文缩略语，如搜索空间、监测周期或物理层信令等，均为方便描述而给出的示例性举例，不应对本申请构成任何限定。本申请并不排除在已有或未来的协议中定义其它能够实现相同或相似功能的术语的可能。
第二，在下文示出的实施例中第一、第二以及各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围。例如，区分不同的指示信息、区分不同的搜索空间。需要说明的是，本申请实施例使用“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的顺序、时序、优先级或重要程度。
第三，本申请实施例中涉及的“协议”可以是指通信领域的标准协议，例如可以包括LTE协议、NR协议以及应用于未来的通信系统中的相关协议，本申请对此不作限定。
第四，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a、b和c中的至少一项(个)，可以表示：a，或b，或c，或a和b，或a和c，或b和c，或a、b和c，其中a，b，c可以是单个，也可以是多个。
下面结合图2，对本申请实施例提供的资源指示方法200进行详细说明。该方法200 可以应用于图1所示的通信系统100，但本申请实施例不限于此。在图2中是以调度节点为网络设备、被调度节点为终端设备作为该交互示意的执行主体为例来示意该方法，但本申请并不限制该交互示意的执行主体。
图2示出了本申请实施例提供的一种资源指示方法200，如图2所示，该方法200可以包括以下步骤：
S201，网络设备在第一搜索空间发送第一指示信息，该第一指示信息用于指示第一数据的频域资源。相应地，终端设备在第一搜索空间监测并接收第一指示信息。
上述第一指示信息可以通过物理层信令传输，或者第一指示信息中的一部分信息通过高层信令传输，一部分通过物理层信令传输。可以理解的是，第一指示信息中通过高层信令传输的一部分信息和通过物理层信令传输的一部分信息之和可以是第一指示信息，也可以是第一指示信息中的部分信息，本申请对此不作限定。
按照3GPP规定，物理层控制信令通过在物理下行控制信道候选搜索空间(physical downlink control channel search space candidate)发送。可以理解的是，当第一指示信息中存在通过高层信令传输的部分信息时，网络设备不需要在搜索空间发送第一指示信息中的这部分信息(通过高层信令传输的部分信息)。
示例性地，上述第一指示信息通过物理层信令传输时，可以通过采用特定的下行控制信息格式来表示，或者采用特定无线网络临时标识(radio network tempory identity，RNTI)加扰来表示。
本申请实施例中的第一数据是指网络设备发送给终端设备的下行数据，也可以称为传输数据。
S202，网络设备在第二搜索空间发送第二指示信息，该第二指示信息用于指示第一数据的起始传输时间，相应地，终端设备在第二搜索空间监测并接收该第二指示信息。
上述第一搜索空间的监测周期大于上述第二搜索空间的监测周期。应理解，第一指示信息采用高层信令承载时，第一指示信息的更新时间大于第二搜索空间的监测周期。
示例性地，网络设备在n时隙发送第二指示信息，表示从时隙n+K开始的M个时隙、第一指示信息所指示的频域资源，用于第一数据的传输。其中，K可以在第一指示信息中指示，或者按照预定义的规则确定，或者在第二指示信息中指示。M表示传输数据的时域资源大小，M可以以时隙为单位，或者以子帧为单位，或以微时隙(mini-slot)为单位，或以子时隙(sub-slot)为单位，或者以符号为单位。本申请实施例以M的单位为时隙为例进行示例性说明。M可以在第一指示信息中指示，或者在第二指示信息中指示。本申请实施例中n和K均为大于等于0的整数，M为大于0的整数。
示例性地，第二指示信息可以用于指示不使用或不激活第一指示信息指示的频域资源用于数据传输；或者，网络设备没有发送第二指示信息，则表示不激活或者不使用第一指示信息所指示的频域资源用于数据传输。
应理解，本申请实施例中第一搜索空间的监测时长小于第二搜索空间的监测时长。
S203，网络设备根据频域资源和起始传输时间，向终端设备发送第一数据。相应地，终端设备根据频域资源和起始传输时间，接收来自网络设备的第一数据。
网络设备和终端设备根据第二指示信息指示的起始传输时间，确定激活第一指示信息指示的频域资源生效的时域起始位置，从而确定承载数据的时频资源，使得网络设备可以 在确定的时频资源上发送下行数据，终端设备可以在确定的时频资源上接收下行数据。
可以理解的是，第一指示信息和第二指示信息所指示的时频资源仅用于数据的初始传输，如果终端设备检测到数据发生错误，则发送否定应答(non-acknowledgment，NACK)信号给网络设备，网络设备在接收到NACK后，可以启动重传。示例性地，调度重传的信令可以采用与第一指示信息和第二指示信息不同的第三指示信息，且重传数据所采用的频域资源不限于第一指示信息指示的频域资源。
本申请实施例中，终端设备接收网络设备在第一搜索空间的监测周期发送的第一指示信息，由于第一搜索空间的监测周期大于第二搜索空间的监测周期，避免在第二搜索空间重复发送频率资源，造成调度信令传输冗余度高的问题。采用本申请的方案，可以减少频域资源信息的接收次数，从而减少调度信令传输冗余度，提高网络的传输效率，降低终端设备的功耗，终端设备通过接收网络设备在第二搜索空间的监测周期发送的第二指示信息，相对于半静态调度而言，可以在数据到在达时，及时触发数据传输，降低传输数据的等待时延。
示例性地，网络设备可以根据与终端设备通信的数据包的大小、与终端设备之间的信道状态信息、网络设备的服务负载情况等信息中的一个或多个信息，确定分配给终端设备包括频域资源在内的无线资源。
进一步地，网络设备获得与终端设备通信的业务的平均包大小N average、最大包大小N max、最小包N min大小之间的一个。网络设备获得与该终端设备之间的无线信道状态，确定与该终端设备通信的调制编码方式(modulation and coding scheme，MCS)，根据MCS确定频谱效率因子(spectral efficiency，SE)，SE为调制阶数与码率之积。网络设备根据当前网络设备的服务负载情况，确定周期服务因子f。如果网络设备处于轻载状态，则f可以取比较大的值，使得f·N average接近于或等于最大包大小；如果网络设备处于重载情况，则f可以取为1。据此，网络设备可以确定分配给该终端设备的资源单元(resource element，RE)约为f·N average/SE，再考虑网络设备发送的各种导频信号(例如，解调参考信号、信道状态信息参考信号等)、系统广播信号(例如，同步信号块(synchronization signal block，SSB))，以及当前的带宽信息，最终确定分配给终端设备的频域资源。
应理解，本申请实施例中的第一指示信息还可以包括下列信息中的至少一个：载波标识、带宽部分标识、冗余版本、新数据标识、HARQ进程号、下行分配索引、PUCCH资源标识、PUCCH的传输功率命令、PDSCH HARQ反馈定时标识、VRB到PRB映射方式、PRB绑定大小标识、速率匹配标识、触发ZP CSI-RS、天线端口、传输配置标识、SRS请求、DMRS序列初始化。
作为一个可选的实施例，上述第一指示信息还用于指示下列信息中的至少一种：第一数据的调制编码方式，或第一数据的时域资源的大小；或者，上述第二指示信息还用于指示下列信息中的至少一种：第一数据的调制编码方式，或第一数据的时域资源的大小。
示例性地，第一指示信息还可以用于指示第一数据的调制编码方式和第一数据的时域资源的大小；或者，第一指示信息还可以用于指示第一数据的调制编码方式，第二指示信息还用于指示第一数据的时域资源的大小；或者，第一指示信息还可以用于指示第一数据的时域资源的大小，第二指示信息还用于指示第一数据的调制编码方式；或者，第二指示信息还可以用于指示第一数据的调制编码方式和第一数据的时域资源的大小。
本申请实施例中，采用第一指示信息指示调制编码方式或第一数据的时域资源的大小的方案，由于第一搜索空间的监测周期大于第二搜索空间的监测周期，可以避免在第二搜索空间发送该信令，造成调度信令传输冗余度高的问题。采用第二指示信息指示调制编码方式或第一数据的时域资源的大小的方案，网络设备可以在数据传输前，可以根据待传输数据当时信道条件、数据包大小中的至少一个因素，确定数据的调制编码方式或数据时域资源大小。例如在信道条件好时，或者数据包短时，可以采用更高频谱效率的调制编码方式或者采用更小的数据时域资源，从而达到提升系统效率的目的。
示例性地，可以根据预定义的规则或者由网络设备配置，来确定第一数据的调制编码方式和第一数据的时域资源大小是在第一指示信息中指示还是在第二指示信息中指示。如在XR业务应用场景中，XR业务一般用在静止或者低速移动场景，XR业务中的视频帧I帧大小要比P帧/B帧包更大，可以约定数据的调制编码方式在第一指示信息中指示，数据的时域资源大小在第二指示信息中指示。再例如，网络设备根据数据包大小、信道环境、网络负载中的至少一个因素确定数据的调制编码方式和数据的时域资源大小在第一指示信息中指示或在第二指示信息中指示。例如信道变化比较慢，如网络设备和终端设备通信场景为静止或者低速移动场景，则数据的调制编码方式可以在第一指示信息中指示。如果信道变化比较快，且当前网络设备负载比较重，则数据的调制编码方式在第二信息中指示。再例如，如果数据包大小变化较小，则数据时域资源大小在第一指示信息中指示，如果数据包变化比较大，则数据时域资源大小在第二指示信息中指示。
可以理解的是，在第二指示信息中指示的信息，在第一指示信息中可以不指示；或者，在第一指示信息中指示的信息，在第二指示信息中可以不指示。还应理解，若传输数据所需要的信息在第一指示信息和第二指示信息中均没有指示，则可以采用缺省值。示例性地，在网络设备发送的指示信息没有指示传输数据的时域资源大小M时，则默认用于传输数据的时域资源大小为1时隙。在网络设备发送的指示信息没有指示传输数据的传输块的个数，则默认数据传输的传输块的个数为1。结合上面的例子，在指示信息指示第一数据的时域资源的大小时，如果待传输的数据包比较大、信道条件比较差时，网络设备可以确定用于该终端设备的数据传输的时域资源大小大于1时隙，即M大于1。如果待传输的数据包比较小、信道条件比较好时，网络设备可以确定用于该终端设备的数据传输的时域资源大小为1时隙即M＝1，或者网络设备可以确定用于该终端设备的数据传输的时域资源大小小于1时隙，此时M的单位可以为符号，如M＝7符号。
在网络设备发送的指示信息，指示第一数据的时域资源的大小时，此时网络设备还可以确定在所指示的时域资源内，传输块(transport block，TB)的数量，传输块的数量可以小于等于传输时隙(假设传输时间间隔为时隙，即M的单位为时隙)，或者传输块的数量可以大于等于传输时隙。在信道条件差时，采用多个时隙传输一个传输块可以获得更好的接收性能，在信道条件比较好时，采用一个时隙传输多个传输块可以获得更高的吞吐量。示例性地，网络设备确定用于数据传输的时域资源大小为M时隙，TB的个数L＝k*M，其中，k(k为大于0的整数)的取值可以为1，表示每个时隙传输一个传输块。k的取值为2，表示一个时隙传输2个传输块。k取值为1/M，表示M个时隙传输1个传输块。k取值为2/M，表示M个时隙传输2个传输块。
本申请实施例中，为了进一步降低终端设备的功耗，传输第二指示信息的结束时间和 传输第二指示信息的数据之间至少要大于等于时间G，这个时间可以根据终端设备的处理能力来确定，例如这个时间可以是N1符号，其中N1为终端设备的PDSCH处理时间，或者为约定的值，例如约定为对子载波间隔为15KHz，G＝1.5 OFDM符号；对于30KHz子载波间隔，G为3 OFDM符号，对于60KHz子载波间隔，G＝6 OFDM符号等。另一方面，为了降低数据传输时延，则可以排除该限定，例如可以直接让G＝0，或者第二指示信息指示的传输数据的开始时间与第二指示信息的时域资源重叠。
示例性地，在第一指示信息或第二指示信息指示K或M的取值时，可以直接用二进制数来表示，例如，可以用00表示K＝0，用01表示K＝1，用10表示K＝2，用11表示K＝3，再例如，用00表示M＝1，用01表示M＝2，用10表示M＝3，用11表示M＝4。还可以选择M的取值的离散值以用较少的比特表示较大的范围，降低承载K或M所需的比特数，节省信令传输冗余，例如用00表示M＝1，用01表示M＝2，用10表示M＝4，用11表示M＝8。还可以通过表格索引号来指示M和K的值，例如在现有的时域资源分配(Time domain resource allocation,TDRA)表格中增加一列或者两列用于表示K或M或K和M的取值，通过在第一指示信息或者第二指示信息中指示TDRA表格的序号来指示K的取值或M的取值或K和M的取值。
作为一个可选的实施例，该第二指示信息采用序列或者物理下行控制信道承载。
本申请实施例中，采用序列来承载第二指示信息，可以获得更好的传输可靠性。
示例性地，第二指示信息采用序列承载时，终端设备检测到对应的序列，则认为发送了第二指示信息，会按照对应的规则确定K的取值，K的取值方式可参照上述相关描述，此处不再赘述。相应地，终端设备没有检测到对应的序列，则认为没有发送第二信令。第二指示信息采用PDCCH承载时，终端设备检测到对应的PDCCH时，则认为发送了第二指示信息，会按照对应的规则确定K的取值，K的取值方式可参照上述相关描述，此处不再赘述。相应地，终端设备没有检测到对应的PDCCH，则认为没有发送第二信令。
示例性地，上述序列可以是ZC序列、Gold序列、M序列、Walsh序列或其他随机序列、正交序列等。
示例性地，采用与DMRS相同或相似的序列(Gold序列)表示第二指示信息。示例性地，网络设备采用与参考信号相同或相似的序列承载第二指示信息。
DMRS采用的序列为3GPP协议TS 38.211 V 16.6.0 7.4.1.1.1所采用的序列。根据该协议，DMRS序列的初值c init满足如下公式：
Figure PCTCN2022115305-appb-000001
其中，l为时隙内的OFDM符号编号，
Figure PCTCN2022115305-appb-000002
为一帧内的时隙编号，
Figure PCTCN2022115305-appb-000003
为高层信令配置的参数，
Figure PCTCN2022115305-appb-000004
的取值为0或CDM组值，
Figure PCTCN2022115305-appb-000005
的取值为0或1，根据高层信令、
Figure PCTCN2022115305-appb-000006
和预定义的规则确定。
一种具体的实施方法为：取承载第二指示信息的序列的初值c init与DMRS的初值c init不同的值。
示例性地，承载第二指示信息的序列的初值c init满足如下公式：
Figure PCTCN2022115305-appb-000007
其中，
Figure PCTCN2022115305-appb-000008
由网络设备根据网络设备的配置确定的，网络设备可以选择合适的
Figure PCTCN2022115305-appb-000009
以避 免序列冲突，n SCID∈{0,1}由高层信令配置或者为第一信令所指示(第一信令中的DMRS序列初始化)，λ‘为CDM组。
示例性地，承载第二指示信息的序列的初值c init满足如下公式：
Figure PCTCN2022115305-appb-000010
本申请实施例采用DMRS序列承载第二指示信息，可配置DRMS序列的频域资源与第一指示信息所指示的频域资源一致，则第二指示信息在指示数据传输的起始位置的同时，还可以用于数据信道的解调，提升了解调性能，同时减少了传输数据时的DMRS，降低了系统传输冗余。
示例性地，本申请实施例为避免第二指示信息与终端设备的正常数据传输的DMRS冲突，还可以配置传输第二指示信息的时域资源与传输数据的DMRS的时域资源不同。示例性地，正常DMRS符号一般不会位于符号13，因此可以将第二指示信息配置在符号13，符号13位于时隙的最后一个符号，这种配置方式可以减少对第二指示信息所在时隙的调度影响。
图3示出了本申请实施例提供的一种承载第二指示信息序列的资源配置方式。如图3所示，第一个黑色长方形阴影区域承载第二指示信息，斜线阴影长方形区域表示用于终端设备传输数据块的时频资源，第二个黑色长方形阴影区域发送该数据块的DMRS。
图4示出了本申请实施例提供的另一种承载第二指示信息序列的资源配置方式。如图4所示，区域1和区域2均为配置为承载第二指示信息序列的频域资源，网络设备在确定发送第二指示信息时，可以在区域1和区域2的黑色阴影区域发送第二指示信息，斜线阴影长方形区域表示用于终端设备传输数据块的时频资源，时隙n+1中的黑色长方形阴影区域发送该数据块的DMRS。
应理解，网络设备可以通过配置信息通知终端设备所采用的序列，或者网络设备和终端设备可以按照预定义的规则确定所采用的序列。
本申请实施例中，承载第二指示信息的序列的频域资源可以是连续的，以降低终端监测功耗，也可以是非连续的，以获得频率分集增益。
下面示出了本申请实施例提供的三种承载第二指示信息的具体实现方式。
方式一，采用序列指示第二指示信息。
示例性地，采用序列1表示“激活或使用”第一指示信息所指示的频域资源，采用序列2表示“不激活或不使用”第一指示信息所指示的频域资源，并按照预定义的规则确定时域资源。或者，采用序列2表示“激活或使用”第一指示信息所指示的频域资源，采用序列1表示“不激活或不使用”第一指示信息所指示的频域资源，并按照预定义的规则确定时域资源。
示例性地，采用序列1表示“激活或使用”第一指示信息所指示的频域资源，不发送序列1表示“不激活或不使用”第一指示信息所指示的频域资源，并按照预定义的规则确定时域资源。或者，采用序列1表示“不激活或不使用”第一指示信息所指示的频域资源，不发送序列1表示第一指示信息所指示的频域资源，并按照预定义的规则确定时域资源。示例性地，网络设备在时隙n发送的第二指示信息表示“激活”或“使用”第一指示信息所指示的频域资源，则表示从时隙n+K开始，持续第一指示信息所指示的时隙资源的大小、第一指示信息所指示的频域资源，用于数据传输。其中，K的取值可以参照上述相关描述，此处 不再赘述。预定义K＝1时，网络设备在时隙n发送的第二指示信息可以表示“不激活”或“不使用”第一指示信息所指示的频域资源，则表示从时隙n+1开始，持续指示信息所指示的时隙资源的大小、第一指示信息所指示的频域资源，不用于数据传输。
示例性地，第二指示信息还用于指示时域资源K、数据传输时长M、MCS中的一个或多个时，也可以采用不同的序列来表示不同的取值，如表一所示。
表一
  K M MCS
不发送序列 不激活    
序列1 K1 M1 MCS1
序列2 K1 M2 MCS2
序列3 K2 M1 MCS1
序列4 K2 M2 MCS2
其中，K1和K2表示不同的K的取值，M1，M2表示M的不同取值，MCS1，MCS2表示MCS的不同取值，K，M，MCS的取值范围可以是协议约定，或是通过第一指示信息发送给终端设备。
方式二，采用PDCCH承载第二指示信息。第二指示信息可以是1比特的信令或大于1比特的信令。由于第二指示信息传输比特数小于现有的PDCCH格式0-0/0-1/1-0/1-1中的信令的比特数，故降低了第二指示信息传输冗余，降低了终端设备检测的复杂度和功耗。
1、第二指示信息为1比特的指示信息，1比特的指示信息指示“激活/使用”，或“不激活/不使用”第一的指示信息所指示的频域资源。例如，网络设备在时隙n发送的第二指示信息表示“激活”或“使用”，则表示从时隙n+K开始，持续第一信令所指示的M时隙长度的时隙的、第一指示信息所指示的频域资源，用于与终端设备的数据传输。其中，K可以在第一指示信息中发送给终端设备，或者按照预定义的规则确定K。网络设备在时隙n发送的第二指示信息表示“不激活”或“不使用”，则表示从时隙n+K开始，持续第一指示信息所指示的M时隙长度的时隙的、第一指示信息所指示的频域资源，可以不用于与所述终端设备的数据传输。
2、第二指示信息为大于1比特的指示信息。示例性地，第二指示信息为m比特的指示信息，m比特的指示信息可以指示“激活”或“不激活”第一的指示信息所指示的频域资源，m比特的信令的解释可以按照预定义的规则确定。以m＝2为例，表二示出了一种预定义的方法。
表二
Figure PCTCN2022115305-appb-000011
Figure PCTCN2022115305-appb-000012
示例性地，可以用m1比特表示时域资源K，用m2比特指示数据传输时长M，用m3比特指示MCS，其中，m1，m2，m3的取值均为大于等于零的整数。则第二指示信息的比特数可以是m1+m2+m3。
结合上面的例子，m1，m2，m3等于零时，对应的K，M和MCS的取值可以按照约定的规则来取，或者通过第一指示信息确定。m1＝0，m2＝4，m3＝5时，此时，网络设备在n时隙发送了第二指示信息(该第二指示信息指示K、M和MCS)，该第二指示信息为二进制比特“111001111”，前4比特“1100”表示M＝13(这里对应的规则为二进制数转为十进制后再加1)，后5比特表示采用MCS索引(index)为17的调制编码方式，则该第二指示信息表示：激活从n+1开始的13个时隙用于数据传输，这13个时隙的数据采用MCS index为17所对应的调制编码方式。
再例如，第二指示信息还用于指示时域资源K、数据传输时长M、MCS中的一个或多个时，也可以采用2比特的信息来表示不同的取值，如表三所示。
表三
  K M MCS
不发送第二指示信息 不激活    
00 K1 M1 MCS1
01 K1 M2 MCS2
10 K2 M1 MCS1
11 K2 M2 MCS2
其中，K1和K2表示不同的K的取值，M1，M2表示M的不同取值，MCS1，MCS2表示MCS的不同取值，K，M，MCS的取值范围可以是协议约定，或是通过第一指示信息发送给终端设备。
方式三，采用PDCCH信道来承载第二指示信息，多个终端设备的第二指示信息可以合并在一个下行控制信息(downlink control information，DCI)格式中发送。由于第二指示信息传输比特数小于现有的PDCCH格式0-0/0-1/1-0/1-1中的信令的比特数，故降低了第二指示信息传输冗余，降低了终端设备检测的复杂度和功耗。
进一步的，上述下行控制信道可以采用PDCCH来承载第二指示信息，第二指示信息可以采用polar码进行编码。在本申请实施例中，第二指示信息的比特数很少，通常都小于11比特，则可以采用其他的小码块编码方法。具体的编码方式可以重用在3GPP TS 38.212 V G.6.0 5.3.3所述的信道编码方法。在一些实施例中，TS 38.212 V G.6.0 5.3.3所述的信道编码方法仅用于上行控制信令传输，本申请实施例中将3GPP TS 38.212 V G.6.0 5.3.3中所述的信道编码方法用于下行控制信令传输，可以重用部分上行编码模块，降低了实现复杂度。
作为一个可选的实施例，该方法200还包括：网络设备发送配置信息，该配置信息用 于配置第一搜索空间的监测周期或第二搜索空间的监测周期中的至少一个。相应地，终端设备接收该配置信息。
在本申请实施例中，可以根据通信数据的传输周期性、通信信道环境、终端设备的移动性、网络的负载情况、终端设备的功耗等配置第一搜索空间的监测周期或第二搜索空间的监测周期中的至少一个，以在满足数据传输要求的基础上尽可能节省终端设备的功耗。
示例性地，网络设备可以根据待传输数据的变化、传输信道的变化来确定第一搜索空间的监测周期。在数据包大小变化稳定、信道条件稳定的情况下，设置比较长的第一搜索空间的监测周期；在数据包变化比较快，信道条件变化比较快的情况下，设置比较短的第一搜索空间的监测周期。例如，XR业务在一般情况下数据包大小和信道条件变化相对稳定，因此，网络设备可以设置比较长的第一搜索空间的监测周期(例如，设置为80时隙或者160时隙)。网络设备可以根据数据包的到达时间来设置第二搜索空间的监测周期。例如，XR业务的帧率为30fps时，可以设置第二搜索空间的监测周期为33.3ms接近的数值，例如设置为33ms。XR业务的帧率为60fps时，可以设置第二搜索空间的监测周期为8.3ms接近的数值，例如设置为8ms。为了使得第二搜索空间的监测周期尽可能接近于数据包的到达周期，还可以设置按照一定样式可变的第二搜索空间周期，例如在XR业务的帧率为60fps时，第二搜索空间的周期按照{16.5ms，16.5ms，17ms}的样式循环，在子载波间隔为30kHz时，第二搜索空间的周期为{33时隙，33时隙，34时隙}的样式循环。
示例性地，网络设备确定第一搜索空间的监测周期为160时隙时，第二搜索空间的监测周期可以为33时隙或34时隙。即网络设备确定的第一搜索空间的监测周期要大于网络设备确定的第二搜索空间的监测周期。
下面结合图5，详细说明上述第一搜索空间的监测周期与第二搜索空间监测周期的关系。如图5所示，在一个第一搜索空间的监测周期内包括多个第二搜索空间的监测周期，若一个第一搜索空间的监测周期为80时隙，一个第二搜索空间的监测周期为2时隙，则在一个第一搜索空间的监测周期内包括40个第二搜索空间的监测周期。
结合XR业务特点，对于XR业务为60fps时，网络设备确定第一搜索空间的监测周期为80毫秒，第二搜索空间的监测周期可以为16.5毫秒或17毫秒。即网络设备确定的第一搜索空间的监测周期要大于网络设备确定的第二搜索空间的监测周期。
示例性地，上述配置信息至少可以包括下列信息中的至少一个：第一搜索空间的起始位置、第一搜索空间的频域资源大小、第一搜索空间的频域资源位置、第一搜索空间的监测期持续监测时隙数、第一搜索空间的监测时隙内的监测期起始符号位置、第一搜索空间监测时隙内的一个监测期长度。可选的，第一搜索空间的频域资源大小、第一搜索空间的频域资源位置、和第一搜索空间的一个监测期长度可以用第一搜索空间关联的控制资源集合(control resource set，CORESET)的标识来指示。
示例性地，上述配置信息至少还可以包括下列信息中的至少一个：第二搜索空间的起始位置、第二搜索空间频域资源大小、第二搜索空间的频域资源位置、第二搜索空间的监测期持续监测时隙数、第二搜索空间内相邻两个监测时隙之间的间隔时隙或第二搜索空间的监测时隙内的监测期起始符号位置、第二搜索空间监测时隙内的一个监测期长度。可选的，第二搜索空间的频域资源大小、第二搜索空间的频域资源位置、和第二搜索空间的一个监测期长度可以用第二搜索空间关联的CORESET的标识来指示。本申请实施例在配置 信息中新增第二搜索空间内相邻两个监测时隙之间的间隔时隙，可以减少终端设备在持续监测时长内监测第二指示信息的时间，从而进一步降低终端设备的功耗。
本申请实施例中，将每次第二搜索空间的持续监测时隙数，称为第二搜索空间持续监测期，其对应的时长称为第二搜索空间持续监测时长，相邻两个第二搜索空间持续监测期的间隔称为第二搜索空间的监测周期。
图6示出了本申请实施例提供的一种第二搜索空间的配置方式。如图6所示，包括三个第二搜索空间的监测周期。每个监测周期内包括一个长为持续监测时隙数的连续时隙，即一个第二搜索空间的持续监测时长，每个第二搜索空间的持续监测时长内包括多个第二搜索空间的监测期，每个第二搜索空间的监测期，可以持续1个或者多个符号，称为第二信令监测期长度。在一个第二搜索空间持续监测期内，相邻两个监测期之间的间隔，称为第二搜索空间的监测期间隔。
本申请实施例中，可以根据传输的数据的到达时间的抖动范围确定第二搜索空间的持续监测时长。这种设计可以在数据到达后及时触发数据传输，降低数据传输时延。例如数据达到时间的抖动范围为[-4ms，4ms]，则可以设置第二搜索空间的持续监测时长为8ms，如果一个时隙为0.5ms，也就是第二搜索空间的持续监测时长为16时隙；如果一个时隙为1ms，则第二搜索空间的持续监测时长为8时隙。
进一步地，本申请实施例中，配置第一搜索空间的持续监测时长小于第二搜索空间的持续监测时长，例如配置第一搜索空间的持续监测时长为2时隙，配置第二搜索空间持续监测时长为8时隙。通过减少第一搜索空间的持续监测时长，可以降低终端设备监测第一信令的功耗。而第二搜索空间的持续时长可以覆盖数据到达时间的抖动范围，从而降低了数据传输时延。
本申请实施例中，每个第二搜索空间的监测期的长度可以是1个符号或多个符号，网络设备可以根据要求的第二指示信息的检测性能、信道传播条件或第二指示信息的频域资源大小中的一个或多个因素来确定第二搜索空间的监测期的长度。示例性地，第二指示信息要求比较高的检测性能和/或信道条件比较差和/或第二指示信息的频域资源比较小时，第二搜索空间的监测期长度可以取较大的值，例如2个符号。第二指示信息的要求比较低的检测性能和/或信道条件比较好和/或第二信令频域资源比较大时，第二搜索空间的监测期长度可以取较小的值，例如1个符号。
示例性地，第二搜索空间的监测期间隔等于第二搜索空间的监测周期，网络设备可以仅配置第二搜索空间的监测周期或者仅配置第二搜索空间的监测期间隔。或者，网络设备可以为其中的一个或者多个参数定义缺省值，而不再通过信令发送给终端设备。示例性地，网络设备和终端设备可以通过协议约定第二搜索空间的监测期间隔为1时隙。或者，网络设备和终端设备可以通过协议约定第二信令监测期长度为2符号。
在一些实施例中，搜索空间的持续监测时长内的两个相邻监测时隙之间的间隔为1时隙。本申请实施例中，在配置信息中新增第二搜索空间内相邻两个监测时隙之间的间隔期时隙，该间隔期时隙可以配置为大于等于1时隙，可以进一步降低终端设备的功耗。
图7示出了本申请实施例提供的第二搜索空间的监测期间隔的配置方式。如图7所示，配置方式2中相邻两个第二搜索空间的监测期间隔为配置方式1中相邻两个第二搜索空间的监测期间隔的二倍。示例性地，在配置方式1中，相邻两个第二搜索空间的监测期间隔 为1ms，则在配置方式2中，相邻两个第二搜索空间的监测期间隔为2ms。应理解，监测期间隔大，可以降低终端设备监测第二指示信息的功耗。监测期间隔小，可以降低数据传输时延。综上，网络设备可以根据终端设备的节能需求和数据传输时延来配置合适的值，用于数据传输。
作为一个可选的实施例，传输上述第二指示信息的频域资源与传输数据的频域资源相同，或传输上述第二指示信息的频域资源大小小于传输数据的频域资源大小。
本申请实施例中，传输第二指示信息的频域资源与传输数据的频域资源相同，如果第二指示信息用序列承载，则此时第二支持信息的序列还可以用于数据解调，提升数据解调性能，或者，可以降低用于数据解调的DMRS的数量，从而提升系统效率。如果第二指示信息用物理控制信道承载，此时第二指示信息和数据可以共享用于解调的参考信号。传输第二指示信息的频域资源大小小于接收数据的频域资源大小，可以减少传输第二指示信息的传输冗余，降低终端设备的监测功耗。
示例性地，对于支持BWP数量较小的终端设备，网络设备可以将传输第二指示信息的频域资源与传输第一指示信息的频域资源配置为相同的频域资源，该方式可以避免频繁的BWP切换带来的时延和功耗。
作为一个可选的实施例，第二搜索空间的频域资源与第一搜索空间的频域资源相同，或第二搜索空间的频域资源大小小于第一搜索空间的频域资源大小。
作为一个可选的实施例，该方法200还包括：网络设备根据本次在第二搜索空间中发送第二指示信息所在的时隙位置，确定之后的第二搜索空间的起始位置或第二搜索空间的监测周期中的至少一个。相应地，终端设备根据当前在第二搜索空间中接收到第二指示信息所在的时隙位置，确定之后第二搜索空间的起始位置或第二搜索空间的监测周期中的至少一个。
示例性地，本申请实施例中的数据为一些帧周期可能会产生波动的业务(例如XR业务)时，可以采用动态调整第二搜索空间的监测周期的开始时间的方式，以更好地匹配业务的传输。示例性地，在时隙n检测到第二指示信息，则下次第二指示信息检测开始时隙为n+L，其中，L可以由网络设备配置给终端设备，L的取值可以为(P-R/2)，其中，P为数据周期(单位：时隙)，R为数据到达时间抖动范围(单位：时隙)。设1毫秒＝2时隙，以数据周期为16.67ms(即33时隙)，数据到达时间抖动范围为8ms(即16时隙)为例，则L的取值为33-8＝25时隙，也就是说，在时隙n检测到第二指示信息时，则下次第二指示信息开始检测的时隙为(n+25)时隙。
图8示出了本申请实施例提供的一种第二指示信息的监测方式。如图8所示，在第一个网络设备为终端设备配置的监测时长内，在第三个监测期(第一个黑色阴影区域)监测到第二指示信息(即实际的监测时长为第一个监测期开始位置到第三个监测期的结束位置的时间)，则下次监测第二指示信息的监测时长开始时间为第三个监测期之后的25时隙。依次类推。这样，有25时隙的时间不需要终端设备监测第二指示信息，节省了终端设备的功耗。
作为一个可选的实施例，该方法200还包括：网络设备发送第三指示信息，该第三指示信息指示第二搜索空间的起始位置或第二搜索空间的监测周期中的至少一个。相应地，终端设备接收该第三指示信息。
作为一个可选的实施例，该方法200还包括：终端设备停止在第二搜索空间当前监测周期内的剩余持续监测时长对第二指示信息的监测。
示例性地，终端设备在一个第二搜索空间的监测时长内的任一监测期监测到第二指示信息后，可以不在该第二搜索空间的监测时长内剩余的其他监测期继续监测第二指示信息。
本申请实施例的这种处理方式可以进一步降低终端设备监测第二指示信息的功耗。
图9示出了本申请实施例提供的另一种第二指示信息的监测方式。如图9所示，包括3个第二搜索空间的监测周期，每个监测周期配置的持续监测时长内包括4个第二搜索空间的监测期。其中，在第一个监测周期内，终端设备在第一个监测期监测第二指示信息，没有检测到第二指示信息，则在第二个监测期监测第二指示信息，依旧没有检测到第二指示信息，则在第三个监测期(即图中第一个黑色阴影位置)监测第二指示信息，检测到第二指示信息，则终端设备可以不在第四个监测期监测第二指示信息。在第二个监测周期内，终端设备在第一个监测期监测第二信令，检测到第二指示信息(即图中第二个黑色阴影位置)，则终端设备可以不在剩余第二、三、四个监测期监测第二信令。在第三个监测周期内，终端设备依次在第一个、第二个、第三个、第四个监测期监测第二指示信息，直到在第四个监测期检测到第二指示信息(图中第三个黑色阴影位置)，或者直到第三个监测周期的持续监测时长结束仍未检测到第二指示信息，则停止在该监测周期的监测第二指示信息。
示例性地，当在第二搜索空间的当前监测周期内的持续监测时长结束后未监测到第二指示信息时，停止在第二搜索空间的当前监测周期内的第二指示信息的监测，或者在持续监测时长结束后的时隙继续监测第二指示信息，直到检测到第二指示信息为止或者直到接收到第四指示信息为止，该第四指示信息用于指示停止监测第二指示信息。
示例性地，网络设备和终端设备可以根据网络负载情况、终端设备的节电策略、数据的服务质量要求等其中的至少一个确定是否采用监测期延长的方式。例如，终端设备不需要节电，且数据的传输时延低，可以采用延长监测期的方式来降低数据传输时延。或者，数据可以接收较高的传输时延，且终端希望尽可能节电，则不采用延长监测期的方式。
应理解，第二搜索空间监测延长期(上述持续监测时长结束后的时隙)的检测期的配置，可以采用第二搜索空间的持续监测时长内的相同的配置。
图10示出了本申请实施例提供的再一种第二指示信息的监测方式。如图10所示，包括3个第二搜索空间的监测周期，每个监测周期配置的持续监测时长内包括4个第二搜索空间的监测期。其中，在第一个监测周期内，终端设备在第三个监测期检测到第二指示信息，则停止在当前监测周期内的监测第二指示信息，即终端设备不在第一个监测周期内的第四个监测期继续监测第二指示信息。在第二个监测周期内，终端设备在配置的监测时长内没有检测到第二指示信息，则持续监测时长结束后的时隙(延长期)继续监测第二指示信息，终端设备在延长期的第二个检测期监测到第二指示信息，则停止继续监测，相隔25时隙(一个监测周期)继续监测第二指示信息。
下面结合图11，对本申请实施例提供的资源指示方法1100进行详细说明。该方法1100可以应用于图1所示的通信系统100，但本申请实施例不限于此。在图11中是以调度节点为网络设备、被调度节点为终端设备作为该交互示意的执行主体为例来示意该方法，但本申请并不限制该交互示意的执行主体。
图11示出了本申请实施例提供的另一种资源指示方法1100，如图11所示，该方法1100可以包括以下步骤：
S1101，网络设备在第三搜索空间发送第四指示信息，该第四指示信息用于指示终端设备发送第二数据的频域资源。相应地，终端设备在第三搜索空间接收该第四指示信息。
上述第四指示信息可以通过物理层信令传输，或者第四指示信息中的一部分信息通过高层信令传输，一部分通过物理层信令传输。可以理解的是，第四指示信息中通过高层信令传输的一部分信息和通过物理层信令传输的一部分信息之和可以是第四指示信息，也可以是第四指示信息中的部分信息，本申请对此不作限定。
按照3GPP规定，物理层控制信令通过在物理下行控制信道候选搜索空间发送。可以理解的是，当第四指示信息中存在通过高层信令传输的部分信息时，网络设备不需要在搜索空间发送第四指示信息中的这部分信息。
示例性地，上述第一指示信息通过物理层信令传输时，可以通过采用特定的下行控制信息格式来表示，或者采用特定RNTI加扰来表示。
应理解，S1101的具体实施方式可参照上述方法200中S201的相关描述，此处不再赘述。
本申请实施例中的第二数据是指终端设备发送给网络设备的上行数据，也可以称为传输数据。
S1102，终端设备在第一传输机会发送第五指示信息，该第五指示信息用于指示终端设备发送第二数据的起始传输时间，相应地，网络设备在第一传输机会监测并接收第五指示信息。
上述第三搜索空间的监测周期大于上述第一传输机会的传输机会周期。
终端设备在接收到第四指示信息后，并不立即使用第四指示信息所指示的频域资源，而是等待有上行数据要传输时，才使用第四指示信息所指示的频域资源传输，这样可以避免无线资源不必要的浪费，避免终端设备发送空数据包带来的终端设备功耗的增加和通信系统的干扰增加。
在一种可选的实施方法中，终端设备和网络设备可以不通过在第一传输机会发送的第五指示信息来确定终端设备发送数据的实际起始传输时间。这种实施方法中，由于网络设备并不清楚终端设备何时会使用第四信息所指示的频域资源，网络设备需要在所有可能的时域资源不断的进行盲检测来判断终端设备是否发送了第二数据，这种方式增加了网络设备的复杂度。终端设备确定有上行数据要传输时，向网络设备发送第五指示信息，可以避免网络设备盲检测是否有数据传输带来的复杂度。
网络设备和终端设备可以进一步确定第四指示信息所指示的频域资源所传输的数据的类型，例如只有XR业务才可以使用第四指示信息所指示的频域资源传输。或者可以指示只有优先级高于一定值，或者优先级为确定值的数据可以使用第四指示信息所指示的频域资源传输。这种方式可以避免其他数据占用了第四指示信息所指示的频域资源导致目标类型的数据传输延迟增加。
S1103，终端设备根据频域资源和起始传输时间，向网络设备发送第二数据。相应地，网络设备根据频域资源和起始传输时间，接收来自终端设备的该第二数据。
进一步地，终端设备在发送了第五指示信息后，按照第四指示信息和第五指示信息所 确定的时频资源发送上行数据。相应的，网络设备在接收到第五指示信息后，根据第五指示信息所指示的信息，确定激活第四指示信息指示的频域资源生效的时域，从而确定承载数据的时频资源以接收上行数据。
本申请实施例中，网络设备在第三搜索空间的监测周期发送的第四指示信息，预先分配好终端设备可以使用的上行传输资源，由于第三搜索空间的监测周期大于第一传输机会的传输机会周期，避免了终端设备设备在第一传输机会重复发送期望用于数据传输的频域资源，造成信令传输冗余度高的问题。采用本申请的方案，可以减少频域资源信息的发送次数，从而减少调度信令传输冗余度，提高网络的传输效率，降低终端设备的功耗，之后终端设备在有数据达到后，在第一传输机会的传输周期发送第五指示信息，通知网络设备此时终端设备期望的数据传输的时域资源，避免了为降低时延而带来的传输资源浪费的问题。
应理解，S1102中的第一传输机会的传输机会周期可以参照上述第二搜索空间的监测周期的相关描述，此处不再赘述。相应地，第一传输机会的传输机会可参照上述第二搜索空间的监测期的相关描述，第一传输机会的传输机会周期可参照上述第二搜索空间的监测周期的相关描述，第一传输机会的传输机会持续时长可参照上述第二搜索空间的监测持续时长的相关描述，第一传输机会的传输机会间隔可参照上述第二搜索空间的监测期间隔的相关描述，第一传输机会的传输机会长度可以参照上述第二搜索空间的监测期长度，此处均不再赘述。示例性地，第一传输机会的传输机会时长可以是1个符号或多个符号，或者是1个时隙或多个时隙，或者第一传输机会的传输机会时长可以等于第一传输机会的传输机会间隔。
还可以理解的是，网络设备可以根据信道状态、网络负载情况、终端设备功耗中的至少一个确定第一传输机会时长。
图12示出了本申请实施例提供的一种第一传输机会的配置方式。如图12所示，在配置方式1中，第一传输机会的传输机会长度配置为1个符号或多个符号，在配置方式2中，第一传输机会的传输机会长度配置为1个时隙，在配置方式3中，终端设备配置第一传输机会的传输机会长度配置为2个时隙，在配置方式2和配置方式3中，传输机会时长等于第一传输机会的传输机会间隔。
本申请实施例中，网络设备在第一传输机会的传输机会监测第五指示信息，若网络设备在n时隙检测到第五指示信息，则表示从时隙n+K开始，持续第四指示信息指示的M时隙长度的时隙和频域资源上，用于终端设备的数据传输。若网络设备在n时隙没有监测到第五指示信息，则表示从时隙n+K开始，持续第四指示信息指示的M时隙长度的时隙和频域资源上，不用于终端设备的数据传输。若网络设备在n时隙检测到第五指示信息，该第五指示信息指示从时隙n+K开始，持续第四指示信息指示的M时隙长度的时隙和频域资源上，不用于终端设备的数据传输，则网络设备可以从时隙n+K开始，持续第四指示信息指示的M时隙长度的时隙和频域资源，分配给其他终端设备使用。此时，K的取值要足够大以便网络设备发送新的调度信令给其他终端设备。
示例性地，网络设备还可以在接收到第五指示信息之前，将可能会被第五指示信息指示为激活的全部或部分第四指示信息指示的频域资源分配用于其他数据传输。示例性地，可以用于终端设备2的数据传输，此时，若网络设备接收到第五指示信息指示终端设备使 用被第四指示信息指示的频域资源用于该终端设备的数据传输时，网络设备可以发送向终端设备2发送取消终端设备2的数据传输的信令，以便将该频域资源留给发送第五指示信息的终端设备使用，也就是说，向网络设备发送第五指示信息的终端设备的数据传输具有更高的传输优先级。此时K的取值需要满足网络设备在时隙n+K之前取消其他终端设备的数据传输。
作为一个可选的实施例，上述第四指示信息还用于指示下列信息中的至少一种：第二数据的调制编码方式，或第二数据的时域资源的大小；或者，第五指示信息还用于指示下列信息中的至少一种：第二数据的调制编码方式，或第二数据的时域资源的大小。
示例性地，第四指示信息还可以用于指示第二数据的调制编码方式和发送数据的时域资源的大小；或者，第四指示信息还可以用于指示第二数据的调制编码方式，第五指示信息还用于指示第二数据的时域资源的大小；或者，第四指示信息还可以用于指示第二数据的时域资源的大小，第五指示信息还用于指示第二数据的调制编码方式；或者，第四指示信息还可以用于指示第二数据的调制编码方式和第二数据的时域资源的大小。
本申请实施例中，采用第四指示信息指示调制编码方式或第二数据的时域资源的大小的方案，由于第三搜索空间的监测周期大于第一传输机会的传输机会周期，可以避免在第一传输机会的传输机会周期发送该信令，造成调度信令传输冗余度高的问题。采用第五指示信息指示调制编码方式或第二数据的时域资源的大小的方案，终端设备可以在数据传输前，可以根据待传输数据当时信道条件、数据包大小中的至少一个因素，确定数据的调制编码方式或数据时域资源大小。例如在信道条件好时，或者数据包短时，可以采用更高频谱效率的调制编码方式或者采用更小的数据时域资源，从而达到提升系统效率的目的。
在一种可能的设计中，所述第五指示信息还包括下列信息中的至少一个：下行控制信令格式标识、载波标识、上行载波或补充上行载波标识、带宽部分标识、跳频标识、冗余版本、新数据标识、HARQ进程号、DAI、SRS资源标识、预编码信息和层数、天线端口、SRS请求、CSI请求、CBG传输信息、PTRS和DMRS的关联关系、贝塔偏移标识、DMRS序列初始化。
作为一个可选的实施例，上述第五指示信息采用序列、物理上行控制信道或物理上行共享信道承载。
应理解，上述序列可以为ZC序列、Gold序列、M序列、Walsh序列或其他随机序列、正交序列中的一个或多个。
示例性地，第五指示信息可以采用PUCCH格式0或者格式1来承载，但在具体实施过程中为了与PUCCH格式0或者格式1承载的其他上行控制信令区分开，可以为第五指示信息配置不同于其他上行控制信令的资源，从而通过所采用不同的资源来识别是第五指示信息还是其他上行控制信令。
示例性地，第五指示信息可以通过随机接入前导序列(preamble)来承载，网络设备可以配置特定的preamble用于表示第五指示信息，以便与用于随机接入的前导码(preamble)区分开来。
示例性地，第五指示信息可以采用与参考信号相同或相似的序列来承载，例如，DMRS或者上行SRS，均采用Gold序列承载，但可以采用不同的初值、不同的扩频因子、不同的循环移位或不同的子载波等。
作为一个可选的实施例，该方法1100还包括：网络设备发送配置信息，该配置信息用于配置第三搜索空间的监测周期或第一传输机会的传输机会周期中的至少一个。相应地，终端设备接收配置信息。
应理解，网络设备配置第三搜索空间的监测周期的过程可参照上述网络设备配置第一搜索空间的监测周期的过程，网络设备配置第一传输机会的传输机会周期的过程可参照上述网络设备配置第二搜索空间的监测周期的过程，此处不再赘述。
还应理解，多个终端设备可以配置相同时域资源的传输机会。在多个终端设备可以配置相同时域资源的传输机会时，多个终端可以采用不同的序列或者不同的频域资源进行区分，这种方式为非竞争的传输机会，或者多个终端设备可以竞争的使用传输机会。终端设备使用非竞争的传输机会可以获得更好的传输可靠性，降低传输时延，但可能会存在一定的资源浪费。多个终端设备使用竞争的传输机会可以提高系统效率，但可能会存在资源冲突而降低传输性能。网络设备和终端设备可以根据传输数据的服务质量要求、网络负载情况等确定采用哪种传输机会。
作为一个可选的实施例，传输第五指示信息的频域资源与第二数据的频域资源相同，或传输第五指示信息的频域资源大小小于第二数据的频域资源大小。
本申请实施例中，传输第五指示信息的频域资源与第二数据的频域资源相同，此时第二指示信息和第二数据可以共享用于解调的参考信号。传输第五指示信息的频域资源大小小于第二数据的频域资源大小，可以减少传输冗余，降低网络设备的监测功耗。
图13示出了本申请实施例提供的再一种资源指示方法1300，如图13所示，该方法1300可以包括以下步骤：
S1301，网络设备通过高层信令发送第六指示信息，该第六指示信息用于指示第一数据的频域资源。相应地，终端设备接收第六指示信息。
可选地，上述第六指示信息的全部信息可以通过高层信令传输，或者第六指示信息中的一部分信息通过高层信令传输，一部分通过物理层信令传输。可以理解的是，第六指示信息中通过高层信令传输的一部分信息和通过物理层信令传输的一部分信息之和可以是第一指示信息，也可以是第一指示信息中的部分信息，本申请对此不作限定。
可以理解的是，当第六指示信息全部信息均通过高层信令传输，或是第六指示信息中存在通过高层信令传输的部分信息时，网络设备不需要在搜索空间发送第六指示信息或第六指示信息中的这部分信息(通过高层信令传输的部分信息)。
示例性地，上述高层信令可以是RRC信令或者MAC信令。
S1302，网络设备在第四搜索空间发送第七指示信息，该第七指示信息用于指示第一数据的起始传输时间，相应地，终端设备在第四搜索空间监测并接收该第七指示信息。
上述相邻两个第六指示信息的发送时间间隔(即发送周期)大于第四搜索空间的监测周期。
S1303，网络设备根据频域资源和起始传输时间，向终端设备发送第一数据。相应地，终端设备根据频域资源和起始传输时间，接收来自网络设备的第一数据。
本申请实施例中，终端设备接收网络设备发送的第六指示信息，由于第六指示信息的发送周期大于第四搜索空间的监测周期，避免在第四搜索空间重复发送频率资源，造成调度信令传输冗余度高的问题。采用本申请的方案，可以减少频域资源信息的接收次数，从 而减少调度信令传输冗余度，提高网络的传输效率，降低终端设备的功耗，终端设备通过接收网络设备在第四搜索空间的监测周期发送的第七指示信息，相对于半静态调度而言，可以在数据到在达时，及时触发数据传输，降低传输数据的等待时延。
上述第第六指示信息所指示的内容可参照上述第一指示信息的相关描述，上述第四搜索空间的相关描述可参照上述第二搜索空间的相关描述，上述第七指示信息的相关描述可参照上述第二指示信息的相关描述，此处均不再赘述。
本申请实施例中S1303的相关描述，可参照上述方法200中S203的相关描述，此处不再赘述。
图14示出了本申请实施例提供的再一种资源指示方法1400，如图14所示，该方法1400可以包括以下步骤：
S1401，网络设备通过高层信令发送第八指示信息，该第八指示信息用于指示终端设备发送第二数据的频域资源。相应地，终端设备接收该第八指示信息。
示例性地，上述第八指示信息的全部信息可以通过高层信令传输，或者第八指示信息中的一部分信息通过高层信令传输，一部分通过物理层信令传输。可以理解的是，第八指示信息中通过高层信令传输的一部分信息和通过物理层信令传输的一部分信息之和可以是第一指示信息，也可以是第一指示信息中的部分信息，本申请对此不作限定。
可以理解的是，当第八指示信息全部信息均通过高层信令传输，或是第八指示信息中存在通过高层信令传输的部分信息时，网络设备不需要在搜索空间发送第八指示信息或第八指示信息中的这部分信息(通过高层信令传输的部分信息)。
示例性地，上述高层信令可以是RRC信令或者MAC信令。
S1402，终端设备在第二传输机会发送第九指示信息，该第九指示信息用于指示所述终端设备发送第二数据的起始传输时间。相应地，网络设备在第二传输机会监测并接收第九指示信息。
上述相邻两个第八指示信息的发送时间间隔(即发送周期)大于上述第二传输机会的传输机会周期。
S1403，终端设备根据频域资源和起始传输时间，向网络设备发送第二数据。相应地，网络设备根据频域资源和起始传输时间，接收来自终端设备的该第二数据。
本申请实施例中，终端设备接收网络设备发送的第八指示信息，预先分配好终端设备可以使用的上行传输资源，由于第八指示信息的发送周期于第二传输机会的传输机会周期，避免了终端设备设备在第二传输机会重复发送期望用于数据传输的频域资源，造成信令传输冗余度高的问题。采用本申请的方案，可以减少频域资源信息的发送次数，从而减少调度信令传输冗余度，提高网络的传输效率，降低终端设备的功耗，之后终端设备在有数据达到后，在第二传输机会的传输周期发送第五指示信息，通知网络设备此时终端设备期望的数据传输的时域资源，避免了为降低时延而带来的传输资源浪费的问题。
上述第第八指示信息所指示的内容可参照上述第四指示信息的相关描述，上述第二传输机会的相关描述可参照上述第一传输机会的相关描述，上述第九指示信息的相关描述可参照上述第五指示信息的相关描述，此处均不再赘述。
本申请实施例中S1403的相关描述，可参照上述方法1100中S1103的相关描述，此处不再赘述。
上述本申请提供的实施例中，分别从网络设备、终端设备、以及网络设备和终端设备之间交互的角度对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能，网络设备和终端设备可以包括硬件结构和/或软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能以硬件结构、软件模块、还是硬件结构加软件模块的方式来执行，取决于技术方案的特定应用和设计约束条件。
图15和图16为本申请的实施例提供的可能的通信装置的结构示意图。这些通信装置可以实现上述方法实施例中终端设备或网络设备的功能，因此也能实现上述方法实施例所具备的有益效果。在本申请实施例中，该通信装置可以是如图1所示的调度节点110，也可以是如图1所示的被调度节点120，还可以是应用于调度节点或被调度节点的模块(如芯片)。示例性地，该通信装置可以是终端设备，也可以是网络设备，还可以是应用于终端设备或网络设备的模块(如芯片)。
如图15所示，通信装置1500包括处理模块1510和收发模块1520。通信装置1500可用于实现上述图2、图11、图13或图14所示的方法实施例中终端设备或网络设备的功能。
当通信装置1500用于实现图2所述方法实施例中终端设备的功能时：处理模块1510用于控制该收发模块1520在第一搜索空间监测并接收第一指示信息，所述第一指示信息用于第一数据的频域资源，以及在第二搜索空间监测并接收第二指示信息，所述第二指示信息用于指示所述第一数据的起始传输时间，所述第一搜索空间的监测周期大于所述第二搜索空间的监测周期。该处理模块1510还用于：根据第一指示信息和第二指示信息，确定频域资源和起始传输时间，以及控制收发模块1520接收所述第一数据。
示例性地，所述第一指示信息还用于指示下列信息中的至少一种：所述第一数据的调制编码方式，或所述第一数据的时域资源的大小；或者，所述第二指示信息还用于指示下列信息中的至少一种：所述第一数据的调制编码方式，或所述第一数据的时域资源的大小。
示例性地，所述第二指示信息采用序列或者物理下行控制信道承载。
示例性地，收发模块1520还用于：接收配置信息，所述配置信息用于配置所述第一搜索空间的监测周期或所述第二搜索空间的监测周期中的至少一个。
示例性地，传输所述第二指示信息的频域资源与所述第一数据的频域资源相同，或传输所述第二指示信息的频域资源大小小于接收所述第一数据的频域资源大小。
示例性地，所述第二搜索空间的频域资源与所述第一搜索空间的频域资源相同，或所述第二搜索空间的频域资源大小小于所述第一搜索空间的频域资源大小。
示例性地，处理模块1510还用于：根据在所述第二搜索空间中接收到所述第二指示信息所在的时隙位置，确定所述第二搜索空间的起始位置或所述第二搜索空间的监测周期中的至少一个。
示例性地，收发模块1520还用于：接收第三指示信息，所述第三指示信息指示所述第二搜索空间的起始位置或所述第二搜索空间的监测周期中的至少一个。
示例性地，处理模块1510还用于：停止在所述第二搜索空间当前监测周期内的剩余持续监测时长对所述第二指示信息的监测。
当通信装置1500用于实现图11所述方法实施例中终端设备的功能时：处理模块1510， 用于控制该收发模块1520在第三搜索空间监测并接收第四指示信息，所述第四指示信息用于指示第二数据的频域资源。该收发模块1520用于：在第一传输机会发送第五指示信息，所述第五指示信息用于指示第二所述数据的起始传输时间，所述第三搜索空间的监测周期大于第一传输机会空间的传输机会周期。该处理模块1510还用于：根据频域资源和所述起始传输时间，控制该收发模块1520发送所述第二数据。
示例性地，所述第四指示信息还用于指示下列信息中的至少一种：第二所述数据的调制编码方式，或所述第二数据的时域资源的大小；或者，第五指示信息还用于指示下列信息中的至少一种：所述第二数据的调制编码方式，或所述第二数据的时域资源的大小。
示例性地，所述第五指示信息采用序列、物理上行控制信道或物理上行共享信道承载。
示例性地，收发模块1520还用于：接收配置信息，所述配置信息用于配置所述第三搜索空间的监测周期或所述第一传输机会的传输机会周期中的至少一个。
示例性地，传输所述第五指示信息的频域资源与发送所述数据的频域资源相同，或传输所述第五指示信息的频域资源大小小于发送所述数据的频域资源大小。
当通信装置1500用于实现图13所述方法实施例中终端设备的功能时：收发模块1520，用于接收第六指示信息，该第六指示信息用于指示第一数据的频域资源。处理模块1510用于控制收发模块1520在第四搜索空间监测并接收该第七指示信息，该第七指示信息用于指示第一数据的起始传输时间。该处理模块1510还用于：根据频域资源和起始传输时间控制收发模块1520接收所述第一数据。
当通信装置1500用于实现图14所述方法实施例中终端设备的功能时：收发模块1520，用于接收第八指示信息，该第八指示信息用于指示第二数据的频域资源；以及，在第二传输机会发送第九指示信息，该第九指示信息用于指示所述终端设备发送第二数据的起始传输时间。该处理模块1510还用于：根据频域资源和起始传输时间控制收发模块1520接收所述第二数据。
当通信装置1500用于实现图2所述方法实施例中网络设备的功能时：收发模块1520，在第一搜索空间发送第一指示信息，所述第一指示信息用于指示第一数据的频域资源；以及，在第二搜索空间发送第二指示信息，所述第二指示信息用于指示所述第一数据的起始传输时间，所述第一搜索空间的监测周期大于所述第二搜索空间的监测周期；该处理模块1510用于：根据所述频域资源和所述起始传输时间，控制该收发模块1520向所述终端设备发送所述第一数据。
示例性地，所述第一指示信息还用于：指示所述第一数据的调制编码方式，和/或，指示所述第一数据的时域资源的大小；或者，所述第二指示信息还用于：指示所述第一数据的调制编码方式，和/或，指示所述第一数据的时域资源的大小。
示例性地，所述第二指示信息采用序列或者物理层控制信令承载。
示例性地，收发模块1520还用于：发送配置信息，所述配置信息用于配置所述第一搜索空间的监测周期或所述第二搜索空间的监测周期中的至少一个。
示例性地，传输所述第二指示信息的频域资源与所述第一数据的频域资源相同，或传输所述第二指示信息的频域资源大小小于所述第一数据的频域资源大小。
示例性地，所述第二搜索空间的频域资源与所述第一搜索空间的频域资源相同，或所述第二搜索空间的频域资源大小小于所述第一搜索空间的频域资源大小。
示例性地，处理模块1510还用于：根据在第二搜索空间中发送第二指示信息所在的时隙位置，确定所述第二搜索空间的起始位置或第二搜索空间的监测周期中的至少一个。
示例性地，收发模块1520还用于：发送第三指示信息，所述第三指示信息指示所述第二搜索空间的起始位置或所述第二搜索空间的监测周期中的至少一个。
当通信装置1500用于实现图11所述方法实施例中网络设备的功能时：收发模块1520用于：在第三搜索空间发送第四指示信息，所述第四指示信息用于指示第二数据的频域资源。该处理模块1510用于控制该收发模块1520在第一传输机会监测并接收第五指示信息，所述第五指示信息用于指示所述第二数据的起始传输时间，所述第三搜索空间的监测周期大于所述第一传输机会空间的传输机会周期。该处理模块1510还用于：根据所述频域资源和起始传输时间，控制该收发模块1520接收来自所述终端设备的所述第二数据。
示例性地，所述第四指示信息还用于：所述第二数据的调制编码方式，和/或，指示所述第二数据的时域资源的大小；或者，所述第五指示信息还用于：指示所述第二数据的调制编码方式，和/或，指示所述第二数据的时域资源的大小。
示例性地，所述第五指示信息采用序列、物理上行控制信道或物理上行共享信道承载。
示例性地，所述方法还包括：收发模块1520还用于：发送配置信息，所述配置信息用于配置所述第三搜索空间的监测周期或所述第一传输机会的传输机会周期中的至少一个。
示例性地，传输所述第五指示信息的频域资源与所述第二数据的频域资源相同，或传输所述第五指示信息的频域资源大小小于所述第二数据的频域资源大小。
当通信装置1500用于实现图12所述方法实施例中网络设备的功能时：收发模块1520，通过高层信令发送第六指示信息，该第六指示信息用于指示第一数据的频域资源，以及在第四搜索空间发送第七指示信息，该第七指示信息用于指示第一数据的起始传输时间。该处理模块1510用于：根据所述频域资源和所述起始传输时间，控制该收发模块1520向所述终端设备发送所述第一数据。
当通信装置1500用于实现图13所述方法实施例中网络设备的功能时：收发模块1520，通过高层信令发送第八指示信息，该第八指示信息用于指示终端设备发送第二数据的频域资源。该处理模块1510用于控制收发模块1520在第二传输机会监测并接收第九指示信息，该第九指示信息用于指示所述终端设备发送第二数据的起始传输时间。该处理模块1510用于：根据所述频域资源和所述起始传输时间，控制该收发模块1520向所述终端设备发送所述第一数据。
关于上述处理模块1510和收发模块1520更详细的描述，可参考上述方法实施例中的相关描述，在此不再说明。
应理解，这里的装置1500以功能模块的形式体现。这里的术语“模块”可以指应用特有集成电路(application specific integrated circuit，ASIC)、电子电路、用于执行一个或多个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。
上述装置1500具有实现上述方法中终端设备或网络设备执行的相应步骤的功能；上述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
在本申请的实施例，图15中的装置1500也可以是芯片或者芯片系统，例如：片上系统(system on chip，SoC)。
如图16所示，通信装置1600包括处理器1610和接口电路1620。处理器1610和接口电路1620之间相互耦合。可以理解的是，接口电路1620可以为收发器或输入输出接口。可选的，通信装置1600还可以包括存储器1630，用于存储处理器1610执行的指令或存储处理器1610运行指令所需要的输入数据或存储处理器1610运行指令后产生的数据。
当通信装置1600用于实现上述方法实施例中的方法时，处理器1610用于执行上述处理模块1510的功能，接口电路1620用于执行上述收发模块1520的功能。
当上述通信装置为芯片类的装置或者电路时，该通信装置可以包括收发单元和处理单元。其中，所述收发单元可以是输入输出电路和/或通信接口；处理单元为集成的处理器或者微处理器或者集成电路。
当上述通信装置1600为应用于网络设备的芯片时，该网络设备芯片实现上述方法实施例中网络设备的功能。该网络设备芯片从网络设备中的其它模块(如射频模块或天线)接收信息，该信息是终端设备发送给网络设备的；或者，该网络设备芯片向网络设备中的其它模块(如射频模块或天线)发送信息，该信息是网络设备发送给终端设备的。
图17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17中，以通信装置是基站作为例子。该基站可应用于如图1所示的系统中，可以为图1中的调度节点，执行上述方法实施例中网络设备的功能。
该通信装置1700可包括处理器1722。还可以包括收发器1710和存储器1721。处理器1722被配置为支持通信装置1700执行上述方法中相应的功能，收发器1710可以用于通信装置进行通信，如用于发送上述第一指示信息等。存储器1721与处理器1722耦合，可用于保存通信装置1700实现各功能所必要的程序和数据。
具体的，该收发器1710可以是无线收发器，可用于支持通信装置1700通过无线空口进行接收和发送信令和/或数据。收发器1710也可被称为收发单元或通信单元，收发器1710可包括一个或多个射频单元1712以及一个或多个天线1711，其中，射频单元如远端射频单元(remote radio unit，RRU)或者有源天线单元(active antenna unit，AAU)，具体可用于射频信号的传输以及射频信号与基带信号的转换，该一个或多个天线具体可用于进行射频信号的辐射和接收。可选地，收发器1710可以仅包括以上射频单元，则此时通信装置1700可包括收发器1710、存储器1721、处理器1722以及天线1711。
存储器1721以及处理器1722可集成于一体也可相互独立。如图17所示，可将存储器1721以及处理器1722集成于通信装置1700的控制单元1720。示例性地，控制单元1720可包括LTE基站的基带单元(baseband unit，BBU)，基带单元也可称为数字单元(digital unit，DU)，或者，该控制单元1720可包括5G和未来无线接入技术下基站中的DU和/或CU。上述控制单元1720可由一个或多个天线面板构成，其中，多个天线面板可以共同支持单一接入制式的无线接入网(如LTE网络)，多个天线面板也可以分别支持不同接入制式的无线接入网(如LTE网络，5G网络或其他网络)。所述存储器1721和处理器1722可以服务于一个或多个天线面板。也就是说，可以每个天线面板上单独设置存储器1721和处理器1722。也可以是多个天线面板共用相同的存储器1721和处理器1722。此外每个天线面板上可以设置有必要的电路，如，该电路可用于实现存储器1721以及处理 器1722的耦合。以上收发器1710、处理器1722以及存储器1721之间可通过总线(bus)结构和/或其他连接介质实现连接。
基于图17所示结构，当通信装置1700需要发送数据时，处理器1722可对待发送的数据进行基带处理后，输出基带信号至射频单元，射频单元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进行发送。当有数据发送到通信装置1700时，射频单元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1722，处理器1722将基带信号转换为数据并对该数据进行处理。
基于如图17所示结构，收发器1710可用于执行以上由接口电路1620所执行的步骤。和/或，处理器1722可用于调用存储器1721中的指令以执行以上由处理器1610所执行的步骤。
当上述通信装置1600为应用于终端设备的芯片时，该终端设备芯片实现上述方法实施例中终端设备的功能。该终端设备芯片从终端设备中的其它模块(如射频模块或天线)接收信息，该信息是网络设备发送给终端设备的；或者，该终端设备芯片向终端设备中的其它模块(如射频模块或天线)发送信息，该信息是终端设备发送给网络设备的。
图18示出了一种简化的终端设备的结构示意图。为了便于理解和图示方便，图18中，该终端设备以手机作为例子。如图18所示，终端设备包括处理器、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，以及对该车载单元进行控制，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，有些种类的设备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。当有数据发送到该设备时，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18中仅示出了一个存储器和处理器。在实际的设备产品中，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该终端设备的收发单元，将具有处理功能的处理器视为该终端设备的处理单元。如图18所示，该终端设备包括收发单元1810和处理单元1820。收发单元1810也可以称为收发器、收发机、收发装置等。处理单元1820也可以称为处理器，处理单板，处理模块、处理装置等。可选地，可以将收发单元1810中用于实现接收功能的器件视为接收单元，将收发单元1810中用于实现发送功能的器件视为发送单元，即收发单元1810包括接收单元和发送单元。收发单元1810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1810用于执行上述方法实施例中终端设备的发送操作和接收操作，处理单元1820用于执行上述方法实施例中终端设备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1810可以用于执行图2、图11、图13或图14所示的实施例中的发送步骤，接收步骤，和/或用于支持本文所描述的技术的其它过程。处理单元1820可以用于执行如图2、图11、图13或图14所示的实施例中除接收步骤或发送步骤之外的步骤，和/或用于支持本文所描述的技术的其它过程。
本申请实施例还提供一种通信系统，具体的，通信系统包括网络设备和多个终端设备，或者还可以包括更多个网络设备和多个终端设备。示例性地，通信系统包括用于实现上述图2、图11、图13或图14的相关功能的网络设备和终端设备，例如终端设备。所述网络设备分别用于实现上述图2、图11、图13或图14相关网络设备部分的功能。所述终端设备用于实现上述图2、图11、图13或图14相关终端设备部分的功能。具体请参考上述方法实施例中的相关描述，这里不再赘述。
本申请实施例中还提供一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行图2、图11、图13或图14中网络设备执行的方法；或者当其在计算机上运行时，使得计算机执行图2、图11、图13或图14中终端设备执行的方法。
本申请实施例中还提供一种计算机程序产品，包括指令，当其在计算机上运行时，使得计算机执行图2、图11、图13或图14中网络设备执行的方法；或者当其在计算机上运行时，使得计算机执行图2、图11、图13或图14中终端设备执行的方法。
本申请实施例提供了一种芯片系统，该芯片系统包括处理器，还可以包括存储器，用于实现前述方法中网络设备或第一终端设备的功能；或者用于实现前述方法中网络设备和终端的功能。该芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。
可以理解的是，本申请的实施例中的处理器可以是中央处理单元(central processing unit，CPU)，还可以是其它通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现场可编程门阵列(field programmable gate array，FPGA)或者其它可编程逻辑器件、晶体管逻辑器件，硬件部件或者其任意组合。通用处理器可以是微处理器，也可以是任何常规的处理器。
本申请的实施例中的方法步骤可以通过硬件的方式来实现，也可以由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于随机存取存储器(random access memory，RAM)、闪存、只读存储器(Read-Only Memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)、寄存器、硬盘、移动硬盘、CD-ROM或者本领域熟知的任何其它形式的存储介质中。一种示例性地存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于接入网设备或终端设备中。当然，处理器和存储介质也可以作为分立组件存在于接入网设备或终端设备中。
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程序或指令。在计算机上加载和执行所述计算机程序或指令时，全部或部分地执行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、或者其它可编程装置。所述计算机程序或指令可以存储在计算机可 读存储介质中，或者通过所述计算机可读存储介质进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是集成一个或多个可用介质的服务器等数据存储设备。所述可用介质可以是磁性介质，例如，软盘、硬盘、磁带；也可以是光介质，例如，DVD；还可以是半导体介质，例如，固态硬盘(solid state disk，SSD)。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
在本申请的各个实施例中，如果没有特殊说明以及逻辑冲突，不同的实施例之间的术语和/或描述具有一致性、且可以相互引用，不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
可以理解的是，在本申请的实施例中涉及的各种数字编号仅为描述方便进行的区分，并不用来限制本申请的实施例的范围。上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定。

Claims (31)

  1. 一种资源指示方法，其特征在于，包括：
    在第一搜索空间监测并接收第一指示信息，所述第一指示信息用于指示第一数据的频域资源；
    在第二搜索空间监测并接收第二指示信息，所述第二指示信息用于指示所述第一数据的起始传输时间，所述第一搜索空间的监测周期大于所述第二搜索空间的监测周期；
    根据所述频域资源和所述起始传输时间，接收所述第一数据。
  2. 根据权利要求1所述的方法，其特征在于，
    所述第一指示信息还用于指示下列信息中的至少一种：所述第一数据的调制编码方式，或所述第一数据的时域资源的大小；或者，
    所述第二指示信息还用于指示下列信息中的至少一种：所述第一数据的调制编码方式，或所述第一数据的时域资源的大小。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第二指示信息采用序列或者物理下行控制信道承载。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述方法还包括：
    接收配置信息，所述配置信息用于配置所述第一搜索空间的监测周期或所述第二搜索空间的监测周期中的至少一个。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述第二指示信息的频域资源与所述第一数据的频域资源相同，或所述第二指示信息的频域资源大小小于所述第一数据的频域资源大小。
  6. 根据权利要求1至4中任一项所述的方法，其特征在于，所述第二搜索空间的频域资源与所述第一搜索空间的频域资源相同，或所述第二搜索空间的频域资源大小小于所述第一搜索空间的频域资源大小。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述方法还包括：
    根据在所述第二搜索空间中接收到所述第二指示信息所在的时隙位置，确定所述第二搜索空间的起始位置或所述第二搜索空间的监测周期中的至少一个。
  8. 根据权利要求1至6中任一项所述的方法，其特征在于，所述方法还包括：
    接收第三指示信息，所述第三指示信息指示所述第二搜索空间的起始位置或所述第二搜索空间的监测周期中的至少一个。
  9. 根据权利要求1至8中任一项所述的方法，其特征在于，所述方法还包括：
    停止在所述第二搜索空间当前监测周期内的剩余持续监测时长对所述第二指示信息的监测。
  10. 一种资源指示方法，其特征在于，包括：
    在第三搜索空间监测并接收第四指示信息，所述第四指示信息用于指示第二数据的频域资源；
    在第一传输机会发送第五指示信息，所述第五指示信息用于指示所述第二数据的起始发送时间，所述第三搜索空间的监测周期大于所述第一传输机会的传输机会周期；
    根据所述频域资源和所述起始发送时间，发送所述第二数据。
  11. 根据权利要求10所述的方法，其特征在于，
    所述第四指示信息还用于指示下列信息中的至少一种：所述第二数据的调制编码方式，或所述第二数据的时域资源的大小；或者，
    所述第五指示信息还用于指示下列信息中的至少一种：所述第二数据的调制编码方式，或所述第二数据的时域资源的大小。
  12. 根据权利要求10或11所述的方法，其特征在于，所述第五指示信息采用序列、物理上行控制信道或物理上行共享信道承载。
  13. 根据权利要求10至12中任一项所述的方法，其特征在于，所述方法还包括：
    接收配置信息，所述配置信息用于配置所述第三搜索空间的监测周期或所述第一传输机会的传输机会周期中的至少一个。
  14. 根据权利要求10至13中任一项所述的方法，其特征在于，所述第五指示信息的频域资源与所述第二数据的频域资源相同，或所述第五指示信息的频域资源大小小于所述第二数据的频域资源大小。
  15. 一种资源指示方法，其特征在于，包括：
    在第一搜索空间发送第一指示信息，所述第一指示信息用于指示第一数据的频域资源；
    在第二搜索空间发送第二指示信息，所述第二指示信息用于指示所述第一数据的起始传输时间，所述第一搜索空间的监测周期大于所述第二搜索空间的监测周期；
    根据所述频域资源和所述起始传输时间，向终端设备发送所述第一数据。
  16. 根据权利要求15所述的方法，其特征在于，所述第一指示信息还用于：指示所述第一数据的调制编码方式，和/或，指示所述第一数据的时域资源的大小；或者，
    所述第二指示信息还用于：指示所述第一数据的调制编码方式，和/或，指示所述第一数据的时域资源的大小。
  17. 根据权利要求15或16所述的方法，其特征在于，所述第二指示信息采用序列或者物理下行控制信道承载。
  18. 根据权利要求15至17中任一项所述的方法，其特征在于，所述方法还包括：
    发送配置信息，所述配置信息用于配置所述第一搜索空间的监测周期或所述第二搜索空间的监测周期中的至少一个。
  19. 根据权利要求15至18中任一项所述的方法，其特征在于，所述第二指示信息的频域资源与所述第一数据的频域资源相同，或所述第二指示信息的频域资源大小小于所述第一数据的频域资源大小。
  20. 根据权利要求15至18中任一项所述的方法，其特征在于，所述第二搜索空间的频域资源与所述第一搜索空间的频域资源相同，或所述第二搜索空间的频域资源大小小于所述第一搜索空间的频域资源大小。
  21. 根据权利要求15至20中任一项所述的方法，其特征在于，所述方法还包括：
    根据在第二搜索空间中发送第二指示信息所在的时隙位置，确定所述第二搜索空间的起始位置或第二搜索空间的监测周期中的至少一个。
  22. 根据权利要求15至21中任一项所述的方法，其特征在于，所述方法还包括：
    发送第三指示信息，所述第三指示信息指示所述第二搜索空间的起始位置或所述第二搜索空间的监测周期中的至少一个。
  23. 一种资源指示方法，其特征在于，包括：
    在第三搜索空间发送第四指示信息，所述第四指示信息用于指示第二数据的频域资源；
    在第一传输机会监测并接收第五指示信息，所述第五指示信息用于指示所述第二数据的起始传输时间，所述第三搜索空间的监测周期大于所述第一传输机会的传输机会周期；
    根据所述频域资源和所述起始发送时间，接收所述第二数据。
  24. 根据权利要求23所述的方法，其特征在于，所述第四指示信息还用于：指示所述第二数据的调制编码方式，和/或，指示所述第二数据的时域资源的大小；或者，
    所述第五指示信息还用于：所述第二数据的调制编码方式，和/或，所述第二数据的时域资源的大小。
  25. 根据权利要求23或24所述的方法，其特征在于，所述第五指示信息采用序列、物理上行控制信道或物理上行共享信道承载。
  26. 根据权利要求23至25中任一项所述的方法，其特征在于，所述方法还包括：
    发送配置信息，所述配置信息用于配置所述第三搜索空间的监测周期或所述第一传输机会的传输机会周期中的至少一个。
  27. 根据权利要求23至26中任一项所述的方法，其特征在于，所述第五指示信息的频域资源与所述第二数据的频域资源相同，或所述第五指示信息的频域资源大小小于所述第二数据的频域资源大小。
  28. 一种通信装置，其特征在于，包括用于执行如权利要求1至9、如权利要求10至14、如权利要求15至22或如权利要求23至27中的任一项所述方法的模块。
  29. 一种通信装置，其特征在于，包括处理器和通信接口，所述通信接口用于接收来自所述通信装置之外的其它通信装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述通信装置之外的其它通信装置，所述处理器通过逻辑电路或执行代码指令用于实现如权利要求1至9、如权利要求10至14、如权利要求15至22或如权利要求23至27中任一项所述的方法。
  30. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机程序，当所述计算机程序被运行时，实现如权利要求1至9、如权利要求10至14、如权利要求15至22或如权利要求23至27中任一项所述的方法。
  31. 一种计算机程序产品，所述计算机程序产品包括：计算机程序代码，当所述计算机程序代码被运行时，实现如权利要求1至9、如权利要求10至14、如权利要求15至22或如权利要求23至27中任一项所述的方法。
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