WO2022252967A1 - Procédé de planification semi-persistante et dispositif de communication - Google Patents

Procédé de planification semi-persistante et dispositif de communication Download PDF

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Publication number
WO2022252967A1
WO2022252967A1 PCT/CN2022/092772 CN2022092772W WO2022252967A1 WO 2022252967 A1 WO2022252967 A1 WO 2022252967A1 CN 2022092772 W CN2022092772 W CN 2022092772W WO 2022252967 A1 WO2022252967 A1 WO 2022252967A1
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semi
control channel
transmission
data
information
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PCT/CN2022/092772
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English (en)
Chinese (zh)
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张彦清
李雪茹
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华为技术有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0038—Blind format detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • 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 technical field of wireless communication, and more specifically, to a semi-persistent scheduling method and a communication device.
  • the real-time broadband communication (RTBC) scenario in the future communication system aims to support large bandwidth and low interaction delay.
  • the goal is to increase the bandwidth by 10 times under the given delay and certain reliability requirements, and create Immersive experience when a person interacts with a virtual world.
  • the extended reality professional (XR Pro) service which requires ultra-high bandwidth and ultra-low latency, poses a more severe challenge to the fifth generation (5G) mobile communication technology.
  • XR mainly includes virtual reality (VR), augmented reality (augmented reality, AR) and mixed reality (mixed reality, MR) and other virtual and reality interaction technologies.
  • the XR content of the server will generate data content at a fixed frequency (for example, 60Hz, 120Hz), and transmit it to the XR terminal equipment by the base station side.
  • a fixed frequency for example, 60Hz, 120Hz
  • devices such as AR and MR need built-in cameras to collect and continuously upload current scene images at a specific frequency (for example, 60Hz). Therefore, AR and MR also require low latency for uplink transmission.
  • new radio new radio
  • dynamic scheduling can configure different parameters for each transmission to adapt to changes in the channel state, but dynamic scheduling requires blind detection of control information at the receiving end, which increases the power consumption of the receiving end.
  • Authorization-free scheduling has the feature of one-time configuration and multiple usage, that is, after parameters are configured once, subsequent transmissions will use the configured parameters.
  • the receiving end does not need to blindly detect control information.
  • changes to configuration parameters of semi-static transmissions require reconfiguration or reactivation through control messages. In this case, the receiving end still needs to blindly detect the control information, which brings power consumption overhead.
  • the present application provides a semi-static scheduling method and a communication device, which can flexibly change configuration parameters of semi-static transmission to meet the requirement of low power consumption.
  • a semi-static scheduling method which includes:
  • the receiving end receives configuration information, the configuration information is used to configure the first search space SS associated with the semi-static transmission, and the first SS is valid during the activation of the semi-static transmission;
  • the receiving end receives a first control channel, the first control channel belongs to the first SS, and the first control channel indicates the information of the modulation mode and/or coding mode of the semi-static transmission.
  • the first control channel may be scrambled by a cell-radio network temporary identifier (C-RNTI) or a configured scheduling radio network temporary identifier (CS-RNTI) .
  • C-RNTI cell-radio network temporary identifier
  • CS-RNTI configured scheduling radio network temporary identifier
  • the configuration information may also be used to configure a first SS set (SS set) associated with semi-static transmission. That is, in this application, the semi-static transmission is associated with one SS, or the semi-static transmission is associated with one SS set, which is not limited.
  • the semi-static transmission is associated with an SS, and the SS is valid during the activation of the semi-static transmission.
  • the receiving end monitors the control channel candidate of the SS during the activation period of the semi-static transmission, receives the first control channel, and the first control channel indicates the information of the modulation mode and/or coding mode of the semi-static transmission. Power consumption for blindly detecting the information of the modulation mode and/or coding mode of the semi-statically transmitted data at the receiving end.
  • the configuration parameters of the semi-static transmission (for example, the MCS information of the semi-static transmission) can be flexibly changed to adapt to the change of the channel state, and the reliability of the semi-static transmission can be improved.
  • the first SS is valid during the activation of the semi-static transmission, including:
  • the receiving end monitors the control channel candidates of the first SS during the activation period of the semi-static transmission, wherein the activation period is the period between receiving the configuration information and receiving the configuration information releasing the semi-static transmission time interval.
  • the configuration information is also used to activate the semi-static transmission, and the configuration information may be referred to as first configuration information.
  • the configuration information used to release the semi-static transmission may be referred to as second configuration information, and the time interval between the moment when the receiving end receives the first configuration information and the moment when the second configuration information is received is the semi-static transmission during the activation period.
  • the second configuration information may be an RRC signaling or DCI signaling.
  • the activation period may also be a time interval between receiving the activation signaling for activating the semi-static transmission and receiving the deactivation signaling.
  • the configuration information is used to configure the first SS associated with the semi-static transmission.
  • the semi-static transmission can be activated through an activation signaling, and the semi-static transmission can be deactivated through a deactivation signaling. activation.
  • the activation period may also refer to a time interval between receiving the configuration information at the receiving end and releasing the semi-static transmission.
  • the receiving end monitors the control channel candidates of the first SS during activation of the semi-static transmission, including:
  • the receiving end receives a first activation signaling, where the first activation signaling is used to activate the semi-static transmission;
  • the receiving end monitors the control channel candidates of the first SS when or after the semi-static transmission is activated.
  • the configuration information is used to activate the semi-static transmission.
  • the method further includes:
  • the receiving end receives first deactivation signaling, where the first deactivation signaling is used to deactivate the semi-static transmission;
  • the receiving end After receiving the first deactivation signaling, the receiving end stops monitoring the control channel candidates of the first SS.
  • the configuration information is used to activate the semi-static transmission.
  • the configuration information is used to configure the first SS associated with semi-static transmission, including:
  • the configuration information indicates the index of the first SS; or,
  • the configuration information includes a configuration parameter set of the first SS, and the configuration parameter set includes one or more configuration parameters of the first SS.
  • the method further includes:
  • the receiving end After receiving the first control channel, the receiving end receives first data, where the first data is scheduled through the semi-persistent transmission;
  • the receiving end decodes the first data according to the modulation mode and/or coding mode information indicated by the first control channel.
  • the first control channel is obtained by monitoring the control channel candidates of the first SS.
  • a period of the semi-static transmission is less than or equal to a monitoring period of the first SS.
  • the monitoring moment of the first SS is located in the same time slot as the first moment, where the first moment is the monitoring moment of the first SS After that, the transmission time of the semi-static transmission closest to the monitoring time of the first SS.
  • the first control channel is further used to indicate whether to blindly detect the second control channel at the second moment; wherein the second control channel is used to schedule the first Two data, the second time is later than the monitoring time of the first control channel.
  • the first control channel indicates whether to continue to blindly detect the second control channel after receiving the semi-statically transmitted data (that is, the first data), which reduces the number of times the receiving end blindly detects the control channel , the receiving end does not need to wait until the next cycle for blind detection, which can reduce the delay.
  • the first control channel is further used to indicate blind detection of the second control channel and a time range for blind detection of the second control channel, where the first The second control channel is used to schedule the second data.
  • the semi-static transmission is further associated with a second SS, and the second control channel is obtained by monitoring a control channel candidate of the second SS.
  • the configuration information is further used to configure information of HARQ processes corresponding to the M data transmission units scheduled by the semi-static transmission,
  • the first control channel is further used to indicate M HARQ process numbers corresponding to the M data transmission units, where M is greater than 1 and M is an integer.
  • the M HARQ process numbers corresponding to the M data transmission units of the semi-static transmission scheduling are indicated through the first control channel, and the HARQ process numbers indicating each data transmission unit in each semi-static transmission opportunity are displayed, Collision of HARQ processes can be avoided.
  • the first control channel is further used to indicate information of M HARQ processes corresponding to the M data transmission units, including:
  • the first control channel is further used to indicate the respective offset information of the M HARQ processes corresponding to the M data transmission units, where the jth data transmission unit in the M data transmission units corresponds to
  • the offset information of the HARQ process indicates that the HARQ process number corresponding to the jth data transmission unit in this semi-persistent scheduling transmission opportunity is relative to the jth data transmission unit configured in the configuration information in this current
  • the offset of the corresponding HARQ process number in the semi-persistent scheduling transmission opportunity, 1 ⁇ j ⁇ M, and j is an integer.
  • the offset information of the HARQ processes of the M data transmission units in the semi-persistent transmission scheduling is indicated through the first control channel, which reduces the indication overhead of the system on the basis of avoiding HARQ process collisions.
  • a method for semi-static scheduling which includes:
  • the receiving end receives configuration information, where the configuration information is used to configure the first search space SS associated with the semi-static transmission;
  • the receiving end receives a first control channel, the first control channel belongs to the first SS, and the first control channel indicates M hybrid automatic repeat transmission HARQ corresponding to the M data transmission units scheduled by the semi-static transmission Process information, M is an integer greater than 1.
  • the M HARQ process numbers corresponding to the M data transmission units of the semi-static transmission scheduling are indicated through the first control channel, and the HARQ process of each data transmission unit in each semi-static transmission opportunity is indicated number, which can avoid the collision of the HARQ process.
  • the first control channel is further used to indicate information of M HARQ processes corresponding to the M data transmission units, including:
  • the first control channel is further used to indicate the respective offset information of the M HARQ processes corresponding to the M data transmission units, where the jth data transmission unit in the M data transmission units corresponds to
  • the offset information of the HARQ process indicates that the HARQ process number corresponding to the jth data transmission unit in this semi-persistent scheduling transmission opportunity is relative to the jth data transmission unit configured in the configuration information in this current
  • the offset of the corresponding HARQ process number in the semi-persistent scheduling transmission opportunity, 1 ⁇ j ⁇ M, and j is an integer.
  • a semi-static scheduling method which includes:
  • the sending end sends configuration information, the configuration information is used to configure the first search space SS associated with the semi-static transmission, and the first SS is valid during the activation of the semi-static transmission;
  • the sending end sends a first control channel, the first control channel belongs to the first SS, and the first control channel indicates information about the modulation mode and/or coding mode of the semi-static transmission.
  • the method further includes:
  • the sending end sends a first activation signaling, where the first activation signaling is used to activate the semi-static transmission.
  • the method further includes:
  • the sending end sends first deactivation signaling, where the first deactivation signaling is used to deactivate the semi-static transmission.
  • the configuration information is used to activate the semi-static transmission.
  • the method further includes:
  • the sending end After sending the first control channel, the sending end sends first data, where the first data is scheduled through the semi-persistent transmission.
  • the configuration information is used to configure the first SS associated with semi-static transmission, including:
  • the configuration information indicates the index of the first SS; or,
  • the configuration information includes a configuration parameter set of the first SS, and the configuration parameter set includes one or more configuration parameters of the first SS.
  • the period of the semi-static transmission is less than or equal to the monitoring period of the first SS.
  • the monitoring moment of the first SS is located in the same time slot as the first moment, where the first moment is the monitoring moment of the first SS After that, the transmission time of the semi-static transmission closest to the monitoring time of the first SS.
  • the semi-static transmission is further associated with a second SS, and the second control channel is obtained by monitoring a control channel candidate of the second SS.
  • the configuration information is further used to configure the information of the HARQ process corresponding to the M data transmission units scheduled by the semi-static transmission,
  • the first control channel is further used to indicate M HARQ process numbers corresponding to the M data transmission units, where M is greater than 1 and M is an integer.
  • the first control channel is further used to indicate information of M HARQ processes corresponding to the M data transmission units, including:
  • the first control channel is further used to indicate the respective offset information of the M HARQ processes corresponding to the M data transmission units
  • the offset information of the HARQ process corresponding to the jth data transmission unit among the M data transmission units indicates that the HARQ process number corresponding to the jth data transmission unit in this semi-persistently scheduled transmission opportunity is relative to
  • the offset of the HARQ process number corresponding to the jth data transmission unit configured in the configuration information in this semi-persistent scheduling transmission opportunity, 1 ⁇ j ⁇ M, and j is an integer.
  • the third aspect corresponds to the sending end of the method of the first aspect, and its technical effect can refer to the description of the first aspect, and will not be repeated here.
  • a method for semi-static scheduling includes:
  • the sending end sends configuration information, where the configuration information is used to configure the first search space SS associated with the semi-static transmission;
  • the sending end sends a first control channel, the first control channel belongs to the first SS, and the first control channel indicates the M hybrid automatic repeat transmission HARQ corresponding to the M data transmission units scheduled by the semi-static transmission.
  • Process information M is an integer greater than 1.
  • the fourth aspect corresponds to the sending end of the method in the second aspect, and its technical effect can refer to the description of the second aspect, and will not be repeated here.
  • the first control channel is further used to indicate information of M HARQ processes corresponding to the M data transmission units, including:
  • the first control channel is further used to indicate the respective offset information of the M HARQ processes corresponding to the M data transmission units, where the jth data transmission unit in the M data transmission units corresponds to
  • the offset information of the HARQ process indicates that the HARQ process number corresponding to the jth data transmission unit in this semi-persistent scheduling transmission opportunity is relative to the jth data transmission unit configured in the configuration information in this current
  • the offset of the corresponding HARQ process number in the semi-persistent scheduling transmission opportunity, 1 ⁇ j ⁇ M, and j is an integer.
  • a communication device in a fifth aspect, has a function of implementing the method in the first aspect or the second aspect, or any possible implementation manner of these aspects.
  • 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 units corresponding to the above functions.
  • a communication device in a sixth aspect, has a function of implementing the method in the third aspect or the fourth aspect, or any possible implementation manner of these aspects.
  • 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 units corresponding to the above functions.
  • a communication device including a processor and a memory.
  • a transceiver may also be included.
  • the memory is used to store computer programs
  • the processor is used to call and run the computer programs stored in the memory, and control the transceiver to send and receive signals, so that the communication device performs the first aspect or the second aspect, or any of these aspects method in a possible implementation.
  • the communication device is a receiving end of wireless communication.
  • a communication device including a processor and a memory.
  • a transceiver may also be included.
  • the memory is used to store computer programs
  • the processor is used to call and run the computer programs stored in the memory, and control the transceiver to send and receive signals, so that the communication device performs the third aspect or the fourth aspect, or any one of these aspects method in a possible implementation.
  • the communication device is a sending end of wireless communication.
  • a communication device including a processor and a communication interface, the communication interface is used to receive data and/or information, and transmit the received data and/or information to the processor, and the processing
  • the processor processes the data and/or information
  • the communication interface is also used to output the data and/or information processed by the processor, so that as in the first aspect or the second aspect, or any possible The method in the implementation is executed.
  • a communication device including a processor and a communication interface, the communication interface is used to receive data and/or information, and transmit the received data and/or information to the processor, and the processing
  • the processor processes the data and/or information
  • the communication interface is also used to output the data and/or information processed by the processor, so that as in the third aspect or the fourth aspect, or any possible The method in the implementation is executed.
  • a computer-readable storage medium wherein computer instructions are stored in the computer-readable storage medium, and when the computer instructions are run on a computer, as in the first aspect or the second aspect, or in these aspects, A method in any possible implementation of is executed.
  • a computer-readable storage medium is provided.
  • Computer instructions are stored in the computer-readable storage medium.
  • the third aspect or the fourth aspect, or in these aspects A method in any possible implementation of is executed.
  • a computer program product includes computer program code, when the computer program code is run on a computer, such that the first aspect or the second aspect, or any of these aspects A method in one possible implementation is executed.
  • a computer program product includes computer program code, when the computer program code is run on a computer, the third aspect or the fourth aspect, or any of these aspects A method in one possible implementation is executed.
  • a fifteenth aspect provides a wireless communication system, including the communication device according to the fifth aspect and the communication device according to the sixth aspect.
  • FIG. 1 is a schematic diagram of a communication system applicable to an embodiment of the present application.
  • FIG. 2 is a schematic flow chart of the semi-persistent scheduling method provided by the present application.
  • FIG. 3 shows a schematic diagram of one SPS scheduling one or more data transmission units.
  • Fig. 4 shows a schematic diagram of relative time domain positions of first indication information in a first control channel and semi-persistent transmission scheduled data.
  • FIG. 5 is an example of applying the semi-persistent scheduling method provided by this application to uplink transmission.
  • FIG. 6 is another example of applying the semi-persistent scheduling method provided in this application to uplink transmission.
  • Fig. 7 shows a schematic diagram of the first control channel including the second indication information.
  • Fig. 8 shows a schematic diagram of the first control channel including third indication information.
  • Fig. 9 shows the HARQ process under the incremental redundancy scheme.
  • FIG. 10 is a schematic diagram of a process of data transmission using multiple HARQ processes.
  • Fig. 11 is a schematic diagram of allocating multiple HARQ processes for SPS transmission.
  • Fig. 12 is a scene diagram of HARQ process collision.
  • Fig. 13 is another scene diagram of HARQ process collision.
  • FIG. 14 shows another semi-persistent scheduling method provided by this application.
  • Fig. 15 is a schematic diagram of a HARQ process indicating semi-static transmission provided in the present application.
  • Fig. 16 is another schematic diagram of the HARQ process indicating semi-static transmission in this application.
  • Fig. 17 is a schematic block diagram of a communication device provided in this application.
  • FIG. 18 is a schematic structural diagram of a communication device provided by the present application.
  • uplink scheduling is divided into two types: dynamic scheduling transmission and configured grant (CG) scheduling-free transmission, and CG scheduling-free transmission is hereinafter referred to as CG transmission.
  • CG configured grant
  • CG transmission CG transmission-free transmission
  • the UE sends a transmission request to the base station and reports the amount of data to be transmitted.
  • the base station allocates corresponding transmission resources for the UE according to the information reported by the UE.
  • Dynamic scheduling can configure different parameters for each transmission to adapt to channel state changes.
  • dynamic scheduling requires blind detection of control information at the receiving end, which increases power consumption at the receiving end.
  • the uplink scheduling-free transmission includes type1 and type2.
  • the uplink scheduling-free transmission configuration is all completed through RRC signaling.
  • the uplink scheduling-free transmission configuration is first configured by the base station through RRC signaling, and then the base station activates uplink transmission through downlink control information (DCI) signaling.
  • DCI downlink control information
  • the receiving end does not need to blindly detect control information.
  • the configuration parameters transmitted by the CG change, reactivation or reconfiguration is required, which still requires blind detection of control information at the receiving end, resulting in power consumption overhead.
  • NR also provides two scheduling methods, that is, dynamic scheduling and pre-configured authorized semi-persistent scheduling (semi-persistent scheduling, SPS) transmission.
  • dynamic scheduling the UE needs to monitor the physical downlink control channel (physical downlink control channel, PDCCH) all the time, and determine it through the cell-radio network temporary identifier (C-RNTI) information carried by the PDCCH Scheduling signaling for the terminal.
  • C-RNTI cell-radio network temporary identifier
  • the blind detection power consumption of the UE is also relatively large.
  • the base station configures the downlink SPS resource period through RRC signaling, but does not activate the SPS at this time.
  • the base station Similar to the type2 process of uplink transmission, the base station sends a PDCCH scrambled by the configured scheduling radio network temporary identifier (CS-RNTI) to activate or deactivate the SPS, and indicates the resource used for the first transmission of the SPS .
  • the UE determines whether the downlink SPS is activated and the resource location of the subsequent SPS by monitoring the PDCCH. After the downlink SPS is activated, the UE will receive downlink transmission on the pre-configured resource position.
  • CS-RNTI configured scheduling radio network temporary identifier
  • the current 3rd generation partnership project (3GPP) standard adopts a modulation and coding scheme (MCS) based on the channel state, that is, adjusts the parameters of the MCS according to the channel state.
  • MCS modulation and coding scheme
  • the base station can use the low-order MCS to transmit data, so as to ensure the correct rate of data transmission.
  • low-order MCS guarantees signal transmission quality at the cost of increasing signal redundancy, thus reducing system bandwidth efficiency.
  • the base station can use high-order MCS to transmit signals, thereby improving bandwidth efficiency.
  • the above-mentioned scheduling-free SPS transmission or CG transmission has the characteristics of one configuration and multiple transmissions, that is, after parameters are configured once, all subsequent SPS transmission or CG transmission data will use the parameters configured this time.
  • one existing solution is to perform reconfiguration or reactivation through control information; another solution is to perform reconfiguration or reactivation for each SPS transmission or CG transmission. Frequent reactivation or reconfiguration requires the UE to frequently blindly detect control information, which increases the power consumption of the UE.
  • this application provides a semi-static scheduling method, which can flexibly change the transmission configuration of semi-static scheduling to adapt to changes in channel status and meet low power consumption requirements demand.
  • the technical solution of the embodiment of the present application can be applied to various communication systems, including but not limited to: new radio (new radio, NR) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex) , FDD) system, LTE time division duplex (time division duplex, TDD) system, etc.
  • the technical solutions provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system.
  • it can also be applied to device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (M2M) communication, machine type communication (machine type communication, MTC), and the Internet of Things (IoT) communication system or other communication systems, etc.
  • D2D device-to-device
  • V2X vehicle-to-everything
  • M2M machine-to-machine
  • MTC machine type communication
  • IoT Internet of Things
  • a communication system applicable to this application may include one or more sending ends, and one or more receiving ends.
  • one of the sending end and the receiving end may be a terminal device, and the other may be a network device. or. Both the sending end and the receiving end may be terminal devices.
  • the terminal equipment may also be called user equipment (user equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station (mobile station, MS), mobile terminal (mobile terminal, MT), Remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • the terminal device in the embodiment of the present application may be a device that provides voice and/or data connectivity to users, and can be used to connect people, objects and machines, such as handheld devices with wireless connection functions, vehicle-mounted devices, and the like.
  • the terminal device in the embodiment of the present application can be mobile phone (mobile phone), tablet computer (Pad), notebook computer, palmtop computer, mobile internet device (mobile internet device, MID), wearable device, virtual reality (virtual reality, VR) equipment, augmented reality (augmented reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, smart Wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc.
  • UE can be used to act as a base station.
  • a UE may act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc.
  • the device for realizing the function of the terminal may be a terminal, or a device capable of supporting the terminal to realize the function, such as a chip system or a chip, and the device may be installed in the terminal.
  • the system-on-a-chip may be composed of chips, or may include chips and other discrete devices.
  • the network device may be a device with a wireless transceiver function, and the network device may be a device that provides a wireless communication function service, usually located on the network side, including but not limited to a fifth generation (5th generation, 5G) communication system Next-generation base station (gNodeB, gNB), base station in the sixth generation (6th generation, 6G) mobile communication system, base station in the future mobile communication system or access node in the wireless fidelity (Wireless fidelity, WiFi) system, etc., Evolved node B (evolved node B, eNB), radio network controller (radio network controller, RNC), node B (node B, NB) and base station controller (base station) in the long term evolution (long term evolution, LTE) system station controller, BSC), home base station (for example, home evolved NodeB, or home Node B, HNB), base band unit (base band unit, BBU), transmission reception point (transmission reception point, TRP), transmission point (transmitting point, TP),
  • the network device may include a centralized unit (centralized unit, CU) node, or a distributed unit (distributed unit, DU) node, or a RAN device including a CU node and a DU node, or a control plane CU node and a
  • the CU node of the user plane, and the RAN device of the DU node, or the network device may also be a wireless controller, a relay station, a vehicle-mounted device, and a wearable device in a cloud radio access network (CRAN) scenario.
  • a base station may be a macro base station, a micro base station, a relay node, a donor node, or a combination thereof.
  • a base station may also refer to a communication module, a modem or a chip configured in the aforementioned equipment or device.
  • the base station can also be a mobile switching center, a device that assumes the function of a base station in D2D, V2X, and M2M communications, a network-side device in a 6G network, and a device that assumes the function of a base station in a future communication system.
  • the base station may support networks of the same or different access technologies, which is not limited.
  • the device for realizing the function of the network device may be a network device, or a device capable of supporting the network device to realize the function, such as a chip system or a chip, and the device may be installed in the network device.
  • the system-on-a-chip may be composed of chips, or may include chips and other discrete devices.
  • the technical solution of the present application can be applied to various mobile communication scenarios, for example, point-to-point transmission between a base station and a UE, or point-to-point transmission between a UE, relay transmission between a base station and a UE, dual connectivity between multiple base stations and a UE. connectivity, DC) or multiple connections and other scenarios.
  • point-to-point transmission between a base station and a UE or point-to-point transmission between a UE, relay transmission between a base station and a UE, dual connectivity between multiple base stations and a UE. connectivity, DC) or multiple connections and other scenarios.
  • DC connectivity
  • FIG. 1 is a schematic diagram of a communication system applicable to an embodiment of the present application.
  • a communication system 100 includes a network device 101 and at least one terminal device (such as terminal devices 102-106 in FIG. 1 ).
  • the communication system 100 supports uplink transmission or downlink transmission between the network device 101 and terminal devices (for example, terminal devices 102-106).
  • terminal devices 103, 104 and 106 may be smart phones.
  • the terminal device 102 may be a car or a vehicle-mounted device.
  • the terminal device 105 may be VR glasses.
  • the communication system 100 may support a sidelink (sidelink) communication technology, for example, in FIG. 1, sidelink communication between terminal devices 102 and 103, sidelink communication between terminal devices 105 and 106, etc .
  • sidelink sidelink
  • the semi-persistent scheduling mentioned in this application may refer to CG transmission in uplink transmission, or SPS transmission in downlink transmission, or CG transmission or SPS transmission in sidelink (sidelink).
  • the technical solution of the present application is applicable to both CG transmission and SPS transmission.
  • the sending end of the semi-persistently scheduled transmission is referred to as the sending end for short
  • the receiving end of the semi-persistently scheduled transmission is referred to as the receiving end for short
  • one of the sending end and the receiving end may be a network device, and the other may be a terminal device, for example, uplink transmission or downlink transmission between the base station and the terminal device.
  • both the sending end and the receiving end may be terminal devices, for example, side transmission between terminal devices, which is not limited.
  • FIG. 2 is a schematic flowchart of the semi-persistent scheduling method provided by the present application.
  • the sending end sends the configuration information
  • the receiving end receives the configuration information from the sending end.
  • the configuration information is used to configure the first search space (search space, SS) or (search space set, SSS) associated with the semi-static transmission, and the first SS is valid during the activation of the semi-static transmission.
  • the first SS may be a common search space (common search space, CSS), or a user equipment specific search space (user equipment specific search space, USS), which is not limited.
  • common search space common search space, CSS
  • user equipment specific search space user equipment specific search space
  • the configuration information in this application is used to configure semi-static transmission.
  • the semi-static transmission may be uplink CG transmission, downlink SPS transmission, or sidelink transmission, which is not limited.
  • the configuration information may be SPS configuration.
  • SPS configuration can also associate the SPS configuration with the SS by configuring the searchSpace configuration parameter set (such as the italic part) in the SPS configuration.
  • searchSpace configuration parameter set such as the italic part
  • a new DCI format may also be introduced.
  • new DCI parameters are also introduced for searchSpace.
  • Formats-X is additionally defined in the dci-Formats parameter in ue-specific. The fields are as follows:
  • searchSpace such as adding the dci-formats-SPS-CG parameter in ue-specific to indicate the first control channel format when associated with semi-persistent scheduling.
  • the fields are as follows:
  • formats-X is used as an example above, and other DCI formats may also be used, which is not limited.
  • the SPS configuration and the SS may also be associated in other ways. For example, add sps-configId in the searchspace field to associate an SS with an SPS configuration, or add or sps-configlist in the searchspace field to associate one or more SPS configurations with an SS.
  • sps-configlist can contain one or more SPS configurations. That is, multiple SPS configurations can be associated with one SS.
  • the SPS configuration may also include many other parameters, such as the period of SPS transmission, HARQ process number, MCS information, etc., which are not limited.
  • the first SS can be centrally configured in the parameters of the SPS configuration.
  • the above SPS configuration field contains multiple parameters, which can include the index of the first SS, for example: the identifier of the first SS (identifier ,ID).
  • the first SS may also be a search space that has been configured through RRC signaling, that is, the configuration of the first SS is independent of the configuration of the SPS.
  • one SPS can only schedule one data transmission unit at a time.
  • one SPS can schedule multiple data transmission units each time.
  • multiple SPSs can be associated with one SS.
  • the data transmission unit may be a transport block (transport block, TB), time slot (slot), millisecond, frame (frame) or sub-frame (sub-frame), etc., which is not limited.
  • FIG. 3 shows a schematic diagram of one SPS scheduling one or more data transmission units.
  • the subcarrier spacing (SubCarrier Spacing, SCS) is 15kHz, as shown in (a) of Figure 3, one SPS can schedule 1 TB each time, and the SPS period is 10ms, that is, there is an SPS transmission every 10ms Opportunity.
  • the sender schedules 4 TBs (such as D00, D01, D02 and D03) through 4 SPSs (such as SPS0, SPS1, SPS2 and SPS3).
  • one SPS can schedule multiple TBs (for example, 4) each time, and the period of the SPS is 10 ms.
  • the sender schedules 4 TBs (such as D00, D01, D02 and D03) through 1 SPS (such as SPS0).
  • the sending end activates the semi-static transmission through activation signaling, as in step 220.
  • the sending end sends activation signaling, where the activation signaling is used to activate the semi-static transmission.
  • the receiving end receives the activation signaling from the sending end.
  • the sending end sends the first control channel, and the receiving end receives the first control channel.
  • the first control channel belongs to the first SS, and the first control channel indicates the information of the modulation mode and/or coding mode of the semi-static transmission.
  • the receiving end receives the configuration information, and the configuration information is associated with the first SS.
  • the receiving end receives the activation signaling from the sending end, where the activation signaling is used to activate the semi-static transmission.
  • the receiving end monitors control channel candidates (control channel candidates) of the first SS to obtain the first control channel.
  • control channel candidates control channel candidates
  • control channel candidates may also be referred to as a set of candidate control channels.
  • each type of control channel may correspond to a set of candidate control channels, and each type of control channel may correspond to a search space.
  • the candidate control channel resource cannot be larger than the search space.
  • the set of candidate control channels configurable by the base station is equal to the set of control channels that the UE needs to monitor, or the set of candidate control channels configurable by the base station is the set required by the UE. A subset of the set of monitored control channels.
  • control channels ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇
  • Control channels aggregated by different numbers of control channel elements belong to different control channels: a control channel is aggregated by m consecutive CCEs, where m is a positive integer, for example, m is 1, 2, 4 or 8, this application does not limit the value of m;
  • Control channels corresponding to different control information formats belong to different control channels: the format of the control information carried by one control channel may be the control information format defined by the standard;
  • indicate may indicate explicitly and/or implicitly.
  • an implicit indication may be based on the location and/or resources used for transmission; an explicit indication may be based on one or more parameters, and/or one or more indices, and/or one or more bit pattern.
  • “indicate” may also mean “include”, for example, the first control channel indicates information about the modulation mode and/or coding mode of semi-static transmission, and may also be expressed as: the first control channel includes the modulation mode and/or coding mode of semi-static transmission. and/or encoding information.
  • the first control channel indicates information about the modulation mode and/or coding mode of the semi-static transmission, which may be specifically indicated through control information in the first control channel.
  • the control channel candidates may be PDCCH candidates
  • the first control channel may be the first PDCCH
  • the control information in the first control channel may be any downlink DCI.
  • the downlink control information in the first PDCCH is recorded as DCI X
  • DCI X can be any DCI format (format), such as DCI 1_0, DCI 1_1, etc.
  • Fig. 4 is a schematic diagram of the relative time domain positions of DCI X and semi-persistent transmission scheduled data.
  • each SPS transmission opportunity schedules 4 data transmission units
  • each SPS transmission opportunity will be configured with a DCI X
  • the DCI X can be located before the first data transmission unit.
  • the DCI X split is located before D00 and D10.
  • the configuration information may also indicate the number L of data transmission units scheduled by each SPS transmission opportunity.
  • D00-D03 may be data transmission units scheduled by one or more SPSs.
  • the receiving end receives the first CCH by monitoring the CCH candidates of the first SS, and obtains the control information in the first CCH. According to the control information in the first CCH, the receiving end can obtain the information of the modulation mode and/or coding mode of the semi-static transmission scheduled by the configuration information, and then decode the data of the semi-static transmission.
  • the modulation mode and/or coding mode information indicated by a DCI X is only valid for the corresponding semi-statically transmitted data.
  • the first DCI X is only valid for the data transmitted on D00-D03, and the receiving end decodes the data received on D00-D03 according to the DCI X before D00.
  • the second DCI X is only valid for data transmitted on D10-D13, so the receiving end decodes the data received on D10-D13 according to the DCI X before D10.
  • the information of the modulation mode and/or coding mode of the semi-static transmission may be MCS information, for example, the order of the MCS.
  • the first SS is valid during the activation period of the semi-static transmission, and it can also be considered that the receiving end monitors the control channel candidate of the first SS during the activation period of the semi-static transmission, In other words, the first SS is activated as the semi-static transmission is activated.
  • the receiving end receives the first activation signaling from the sending end, where the first activation signaling is used to activate the semi-static transmission.
  • the receiving end monitors the control channel candidates of the first SS when or after the semi-static transmission is activated, so as to receive the first control channel.
  • the receiving end receives the first activation signaling from the sending end, where the first activation signaling is used to activate the semi-static transmission.
  • the receiving end also receives second activation signaling from the sending end, where the second activation signaling is used to activate the first SS. That is, the semi-static transmission and the first SS may be activated through different activation signaling, which is not limited.
  • the first activation signaling and the second activation signaling may be DCI or RRC signaling, and so on.
  • the deactivation signaling may be DCI or RRC signaling, and so on.
  • the configuration information is used to activate the semi-static transmission, and the first SS is activated as the semi-static transmission is activated;
  • the configuration information is used to activate the first SS, and the semi-static transmission is activated along with the activation of the first SS;
  • the configuration information is used to activate the semi-static transmission and the first SS.
  • the activation period of the semi-static transmission may refer to the moment when the activation signaling for activating the semi-static transmission is received to the moment when the activation signaling for deactivating the semi-static transmission is received.
  • the time range or interval between moments of statically transmitted deactivation signaling may refer to the moment when the activation signaling for activating the semi-static transmission is received.
  • the configuration information may be used to activate the semi-static transmission.
  • the activation period refers to the moment when the receiving end receives the configuration information (as shown in step 210 in Figure 2) to the moment when the receiving end receives the deactivation signaling (as shown in Figure 2 The time interval between steps 260).
  • the receiving end stops monitoring the control channel candidates of the first SS.
  • the monitoring period of the first SS is greater than or equal to the period of the semi-static transmission.
  • the monitoring period of the first SS may be a positive integer multiple of the period of the semi-static transmission.
  • the modulation mode and/or coding mode information indicated by the first control channel is valid for the data of one period of semi-static transmission.
  • the receiving end receives the first control channel relatively frequently by monitoring the control channel candidate of the first SS, and the modulation mode and/or the semi-static transmission indicated by the first control channel Or the information of the coding mode (for example, the information of the MCS) can more flexibly adapt to the change of the channel state, which is beneficial to improve the reliability of the semi-static transmission.
  • the information of the coding mode for example, the information of the MCS
  • the modulation mode and/or coding mode information indicated by the first control channel is valid for the data of multiple periods of semi-static transmission. For example, if the monitoring period of the first SS is equal to twice the period of the semi-static transmission, then the modulation mode and/or coding mode information indicated by the first control channel is valid for the data of the semi-static transmission in 2 periods .
  • the receiving end can obtain the information of the modulation mode and/or coding mode of data in subsequent semi-static transmission periods , can reduce the times of detection of the control channel at the receiving end, and reduce the power consumption of the terminal equipment.
  • the monitoring moment of the first SS is located in the same time slot as the first moment, wherein the first time slot is the transmission moment of the semi-static transmission that is after the monitoring moment of the first SS and is closest to the monitoring moment of the first SS .
  • the time interval between the monitoring moment of the first SS and the first moment is sufficiently small, or very close.
  • the time interval between the monitoring moment of the first SS and the first moment is smaller than a threshold.
  • the threshold is equal to one time slot, or two time slots, etc.
  • the monitoring cycle of the first SS can be configured independently of the cycle of the configuration information.
  • the configuration information is SPS configuration, for example, the SPS configuration includes searchSpaceId, and the searchSpaceId corresponds to a sender's own configuration
  • the searchSpace, the searchSpace can have its own period.
  • the period of searchSpace can be configured through the field monitoringSlotPeriodicityAndOffset. or,
  • the monitoring cycle of the first SS can be configured together with the cycle of the configuration information.
  • the configuration information is SPS configuration. It can be configured through the field monitoringSlotPeriodicityAndOffset, or if the parameter set of the SS is not configured, the period of the SS defaults to the period configured by the SPS.
  • the SPS configuration includes searchSpaceId, wherein a parameter SSperiod is added to the searchSpaceId parameter set, and the SS period is configured through SSperiod. Therefore, the configuration of the monitoring period of the first SS depends on the specific implementation of the sending end and is not limited.
  • the configuration information is used to configure the first SS associated with the semi-static transmission, and the configuration information may indicate an index of the first SS.
  • the configuration information includes a configuration parameter set of the first SS, where the configuration parameter set may include one or more configuration parameters of the first SS.
  • steps 240-250 may also be included.
  • the receiving end After receiving the first control channel, the receiving end receives the first data.
  • the first data is scheduled through the semi-persistent transmission.
  • the first data is the semi-statically transmitted data after the receiving moment of the first control channel.
  • the receiving end may receive the first data after receiving symbols of the first control channel, wherein the receiving moment of the first control channel and the receiving moment of the first data may be located in the same slot (slot), frame (frame) Etc., not limited.
  • the first control channel indicates the information of the modulation mode and/or coding mode of the semi-static transmission, specifically, the first control channel indicates the information of the modulation mode and/or coding mode of the first data.
  • the receiving end decodes the first data according to the modulation mode and/or coding mode information indicated by the first control channel.
  • the first control channel indicates the information of the modulation mode and/or coding mode of the semi-static transmission.
  • the first control channel includes first indication information, and the first indication information is used to indicate information about the modulation mode and/or coding mode of the semi-static transmission.
  • the method 200 may also include steps 260-270.
  • the sending end sends deactivation signaling, where the deactivation signaling is used to deactivate the semi-static transmission.
  • the receiving end receives the deactivation signaling from the sending end.
  • the receiving end stops monitoring the control channel candidates of the first SS.
  • the first SS is valid during the activation period of the semi-static transmission, therefore, after the semi-static transmission is deactivated, the receiving end will stop monitoring the control channel candidates of the first SS.
  • the deactivation signaling may also be a release signaling, wherein the deactivation signaling and the release signaling may be different types of signaling, and the receiving end receives the release signaling Then stop monitoring the control channel candidates of the first SS.
  • the release signaling is used to release the semi-static transmission.
  • the release signaling may be RRC signaling or other types of signaling, which is not limited.
  • the deactivation signaling and release signaling in step S260 may be the same type of signaling, the sending end sends the deactivation signaling/release signaling, and the terminal device receives the deactivation signaling/ After releasing the signaling, stop monitoring the control channel candidates of the first SS.
  • the first control channel includes first indication information, and the first indication information is specifically used to indicate the MCS information of the semi-static transmission, as shown in Table 1.
  • control information contained in the first control channel may be the same as the above DCI X, and the DCI X may only contain information indicating the modulation mode and/or coding mode of the semi-static transmission.
  • DCI X in this application can be a new DCI format, and DCI X can contain fewer bits (for example, lightweight DCI), thereby saving signaling overhead.
  • the present application can also reduce the complexity and power consumption of blind detection at the receiving end.
  • the above method 200 in FIG. 2 describes the application of the semi-persistent scheduling method provided by the present application in downlink transmission.
  • the technical solution of the present application can also be applied in uplink transmission and sidelink transmission.
  • the flow shown in FIG. 5 may be used.
  • FIG. 5 is an example of applying the semi-persistent scheduling method provided by the present application to uplink transmission.
  • the above-mentioned first control channel may specifically be a physical downlink control channel (physical downlink control channel, PDCCH), and the control information in the first control channel may be downlink control information (downlink control information, DCI).
  • PDCCH physical downlink control channel
  • DCI downlink control information
  • the network device sends the configuration information, and the terminal device receives the configuration information from the sender.
  • the configuration information is used to configure the first SS associated with the semi-static transmission, and the first SS is valid during the activation of the semi-static transmission.
  • step 310 can be implemented through RRC signaling.
  • the network device sends the first control channel, and the terminal device receives the first control channel.
  • the first control channel is obtained by the terminal device monitoring the control channel candidates of the first SS after receiving the activation signaling.
  • the first control channel indicates the information of the modulation scheme and/or coding scheme of the semi-static transmission.
  • the terminal device sends the first data, and the network device receives the first data.
  • the first data is the data of the semi-static transmission.
  • the first data is modulated and/or coded by using the modulation mode and/or coding mode indicated by the first control channel.
  • the network device decodes the first data by using the modulation mode and/or coding mode information indicated by the first control channel.
  • the process in FIG. 5 may further include steps 350-360.
  • the terminal device receives RRC signaling from the network device, where the RRC signaling is used to release the semi-static transmission. Or, the RRC signaling is used to instruct the terminal equipment to stop the semi-static transmission.
  • the terminal device stops monitoring the control channel candidates of the first SS.
  • FIG. 5 other ways of releasing the semi-static transmission may also be adopted, which is not limited.
  • FIG. 6 is another example of applying the semi-persistent scheduling method provided by the present application to uplink transmission.
  • the network device sends the configuration information, and the terminal device receives the configuration information from the sender.
  • the configuration information is used to configure the first SS associated with the semi-static transmission, and the first SS is valid during the activation of the semi-static transmission.
  • step 410 may be implemented through RRC signaling.
  • the network device sends an activation signaling, and the terminal device receives the activation signaling from the network device.
  • the activation signaling is used to activate the semi-static transmission.
  • step 410 may be implemented through DCI signaling.
  • the network device sends the first control channel, and the terminal device receives the first control channel.
  • the first control channel is obtained by the terminal device monitoring the control channel candidates of the first SS after receiving the activation signaling.
  • the first control channel indicates the information of the modulation scheme and/or coding scheme of the semi-static transmission.
  • the terminal device sends the first data, and the network device receives the first data.
  • the first data is coded by using the modulation mode and/or coding mode indicated by the first control channel.
  • the network device decodes the first data by using the modulation mode and/or coding mode information indicated by the first control channel.
  • the process in FIG. 6 may further include steps 460-470.
  • the network device sends deactivation signaling, where the deactivation signaling is used to deactivate the semi-static transmission.
  • the terminal device After receiving the deactivation signaling, the terminal device stops monitoring the control channel candidates of the first SS.
  • the deactivation signaling may also be a release signaling, wherein the deactivation signaling and the release signaling may be different types of signaling, and the terminal device receives the release signaling Then stop monitoring the control channel candidates of the first SS.
  • the release signaling is used to release the semi-static transmission.
  • the release signaling may be RRC signaling or other types of signaling, which is not limited.
  • the deactivation signaling and release signaling in step S460 may be the same type of signaling, the sending end sends the deactivation signaling/release signaling, and the terminal device receives the deactivation signaling/ After releasing the signaling, stop monitoring the control channel candidates of the first SS.
  • the semi-persistent scheduling method provided in this application is applied to sidelink (sidelink) transmission.
  • the semi-static transmission of sidelink transmission may include CG transmission and SPS transmission.
  • CG transmission and SPS transmission please refer to the introduction of uplink transmission (that is, CG transmission) and downlink transmission (that is, SPS transmission) introduced above.
  • uplink transmission that is, CG transmission
  • downlink transmission that is, SPS transmission
  • the above-mentioned first control channel may be specifically a physical sidelink control channel (physical sidelink control channel, PSCCH), and the control information in the first control channel may be sidelink control information (sidelink control information, SCI).
  • PSCCH physical sidelink control channel
  • SCI sidelink control information
  • first data is part of data of a service frame
  • second data the remaining data of the service frame
  • first data is data of a certain service
  • data of another service is also referred to as second data hereinafter.
  • the present application proposes to transmit the second data through dynamic scheduling, and indicates whether to blindly detect the control channel used to schedule the second data after receiving the first data through the first control channel (hereinafter referred to as the first control channel). two control channels).
  • the first control channel in addition to the information indicating the modulation mode and/or coding mode of the semi-static transmission as described above, can also be used to indicate whether at the second moment Blind detection of the second control channel, wherein the second control channel is used to schedule second data, and the second time is later than the monitoring time of the first control channel.
  • the second data may belong to the same service as the first data, or the second data may be data of a service other than the service to which the first data belongs at the receiving end.
  • the first data may be partial data of an extended reality (extended reality, XR) service frame
  • the second data may be the remaining data of the XR service frame
  • the first data is data of the XR service
  • the second data is data of other services.
  • the first control channel further includes second indication information, where the second indication information is used to indicate whether to blindly detect the second control channel at the second moment.
  • the second indication information is used to indicate whether the receiving end needs to continue to blindly detect the second control channel after receiving the first data.
  • the second indication information is used to indicate whether to continue the blind detection after receiving the first data.
  • the second indication information may be expressed as "PDCCH monitoring", that is, PDCCH monitoring.
  • the first control channel may include the first indication information and the second indication information as shown in Table 2.
  • MCS represents the first indication information
  • PDCCH monitoring represents the second indication information
  • PDCCH monitoring uses 1 bit to indicate whether the receiving end continues blind detection after receiving the first data.
  • Fig. 7 shows a schematic diagram of the first control channel including the second indication information.
  • this application also proposes another implementation manner in which the sending end instructs the receiving end whether to continue blind detection after the first data.
  • the first PDCCH is also used to indicate blind detection of the second control channel and a time range for blind detection of the second control channel, where the second control channel is used to schedule the second data.
  • the second indication information in the first control channel is used to indicate whether the receiving end continues the blind detection after receiving the first data, and if it is blind detection, the time range of the blind detection can be independently determined by the receiving end .
  • the first control channel may contain third indication information, the third indication information is used to instruct the receiving end to blindly detect the second control channel, and at the same time, the third indication information also indicates the blind detection of the second control channel time limit.
  • the third indication information may be PDCCH monitoring using 3 bits.
  • the first control channel may include the first indication information and the third indication information, as shown in Table 3.
  • MCS represents the first indication information
  • PDCCH monitoring represents the third indication information
  • PDCCH monitoring uses 3 bits to instruct the receiving end to blindly detect the second control channel.
  • Fig. 8 shows a schematic diagram of the first control channel including third indication information.
  • PDCCH monitoring also indicates that the receiving end blindly detects at least the second PDCCH after the last data transmission unit in the first data 3 data transfer units.
  • the receiving end needs to blindly detect at least 0 data transmission units after receiving the data of D10-D13, that is, it does not perform blind detection. check. It can be seen that the value of PDCCH monitoring indicates the time range for blind detection of the second PDCCH by the receiving end.
  • a non-zero value of PDCCH monitoring indicates that the receiving end needs to continue blind detection after receiving the first data, and at the same time, the non-zero value indicates the time range for blind detection of the second PDCCH.
  • the time range may be represented by the number of data transmission units, or other methods may also be used, for example, the time range may also be a range of a certain time slot type (for example, only downlink time slots are considered), Not limited.
  • the value of PDCCH monitoring is zero, it indicates that the receiving end does not perform blind detection after receiving the first data.
  • one data transmission unit here may be one time slot, one millisecond, etc., which is not limited.
  • the use of 3 bits for PDCCH monitoring in Table 3 is only an example, and the number of bits used for PDCCH monitoring can be designed according to the time range in which the receiving end needs to blindly detect the second PDCCH. For example, if the receiving end blindly detects at most 4 data transmission units after the first data, the PDCCH monitoring can also use 2 bits to meet the requirement. Or, if the time range of blind detection of the second PDCCH by the receiving end exceeds 8 data transmissions at most, then PDCCH monitoring needs to use more than 3 bits (for example, 4 bits or 5 bits, etc.) to meet the requirements.
  • the third indication information contained in the first control channel can not only indicate the time range of blind detection of the second control channel, but also indicate the second moment (that is, the blind detection of the second control channel) by adding a fourth indication information.
  • the time of the second control channel) relative to the offset of the first data is used to indicate the offset of the second moment relative to the first data transmission unit of the first data, or the offset of the second moment relative to the last data transmission unit of the first data.
  • the fourth indication information may also be used to indicate the offset of the second moment relative to the above-mentioned first moment, or the offset relative to the monitoring moment, etc., without limitation
  • the first control channel may include first indication information, third indication information and fourth indication information.
  • the information contained in the first control channel may be as shown in Table 4.
  • the position of the data transmission unit is blindly detected on the second PDCCH.
  • the receiving end can know the blind detection of 2 data transmission units.
  • the third indication information in Table 4 may also be replaced with the second indication information, as shown in Table 5.
  • the first indication information in the first control channel indicates the information of the MCS for semi-static transmission
  • the receiving end knows whether to continue to blindly detect the second control channel after receiving the first data according to the indication of the first control channel.
  • the following application also provides another implementation manner of indicating whether the receiving end continues to blindly detect the second control channel after receiving the first data.
  • the configuration information is used to configure the first SS associated with the semi-static transmission, and at the same time, the semi-static transmission is also associated with the second SS, where the second control channel belongs to the second SS.
  • the second control channel is obtained by monitoring the control channel candidates of the second SS
  • the second control channel here may be the second control channel in any of the foregoing implementation manners.
  • the configuration information is used to configure semi-static transmission, and the semi-static transmission is associated with the first SS and the second SS.
  • the receiving end monitors the control channel candidates of the first SS, receives the first control channel, and obtains the modulation mode and/or coding mode information of the semi-statically transmitted first data indicated by the first control channel.
  • the receiving end monitors the control channel candidates of the second SS, receives the second control channel, and obtains control information of the dynamically scheduled second data, for example, information about the modulation mode and/or coding mode of the second data, and the like.
  • the information contained in the first control channel may adopt the example of the first control channel in any one of the foregoing embodiments, for example, any design in Table 1-Table 5.
  • the control information in the second control channel may multiplex the existing DCI format. It should be understood that the existing DCI format mentioned here is different from the DCI X designed in this application.
  • the present application also proposes a scheme to indicate a hybrid automatic repeat request (HARQ) process in semi-statically scheduled transmission, which can solve the problem of HARQ process collision in existing semi-static transmission.
  • HARQ hybrid automatic repeat request
  • HARQ hybrid automatic repeat request
  • FEC forward error correction
  • ARQ automatic repeat-reQuest
  • both FEC and ARQ are well-known technologies in the communication field, and are not described in detail herein.
  • ARQ the biggest advantage of HARQ is that HARQ supports soft combining technology.
  • the soft combining scheme is divided into chasing combining (CC) and incremental redundancy (IR). Specifically, the retransmitted bit information in the CC is the same as the initial transmission, and the retransmitted bit information in the IR may be different from the initial transmission.
  • stop and wait protocol means that the sender stops sending every time it sends a TB, and waits for the confirmation from the receiver. Send the next TB after receiving the acknowledgment.
  • Fig. 9 shows the HARQ process under the incremental redundancy scheme.
  • the sending end sends TB0RV0 to the receiving end, and the receiving end decodes TB0RV0, and feeds back an acknowledgment (acknowledgment, ACK) according to the CRC result to indicate successful decoding, or feedback negative-acknowledgement (NACK) to indicate decoding failure.
  • ACK acknowledgment
  • NACK feedback negative-acknowledgement
  • the base station In the new air interface (new radio, NR) system, the base station needs to receive the HARQ information sent by the UE, and needs to know when the UE sends the HARQ information.
  • the base station controls the transmission timing through the HARQ feedback timing field K1 of the DCI.
  • the HARQ feedback timing field K1 indicates the time slot offset value between the physical downlink shared channel (physical downlink shared channel, PDSCH) and the UE sending the HARQ information.
  • the UE will send corresponding HARQ information in time slot (n+K1), and the HARQ information is sent by the physical uplink control channel (physical uplink control channel, PUCCH) or the physical uplink shared channel (physical uplink shared channel, PUSCH) bearer.
  • PUCCH physical uplink control channel
  • PUSCH physical uplink shared channel
  • the base station can configure up to 16 HARQ processes for each UE, and its operation mode is shown in Figure 10 below.
  • FIG. 10 is a schematic diagram of a process of data transmission using multiple HARQ processes.
  • the UE adopts three HARQ processes.
  • HARQ processes 0-2 correspond to TB0-TB2 respectively. If TB0 is decoded incorrectly, the receiving end will feed back NACK to the sending end, and if TB1 and TB2 are decoded correctly, the receiving end will feed back ACK to the sending end.
  • FIG. 9 For the specific flow of each HARQ process, refer to FIG. 9 .
  • HARQ process 0 Due to the decoding error of TB0 transmitted by HARQ process 0, HARQ process 0 will continue to be used for retransmission of TB0, while HARQ process 1 and HARQ process 2 can be used for transmission of new data, for example, HARQ process 1 is used to transmit TB3, HARQ process 2 is used to transmit TB4. Similarly, if TB4 corresponding to HARQ process 2 is decoded incorrectly, but TB0 and TB3 are decoded correctly, HARQ process 0 and HARQ process 1 can be used for new data transmission, for example, HARQ process 0 is used to transmit TB5, and HARQ process 1 is used for TB6 is transmitted, while HARQ process 2 continues to be used for transmission of TB4.
  • each SPS transmission opportunity is only used to transmit new data. If there is a data decoding error, the base station needs to pass SPS-C-RNTI (for example, in LTE ) or CS-RNTI (for example, in NR) scrambled PDCCH is retransmitted in the same HARQ process in a dynamic scheduling manner. Therefore, there may also be a situation that a certain HARQ process is always occupied.
  • SPS-C-RNTI for example, in LTE
  • CS-RNTI for example, in NR
  • Some existing solutions propose to allocate multiple HARQ processes to SPS transmission to alleviate the problem that one or some HARQ processes are always occupied and affect the initial transmission of new data, as shown in Figure 11 below.
  • Fig. 11 is a schematic diagram of allocating multiple HARQ processes for SPS transmission. As shown in Figure 11, taking the subcarrier spacing as 15 kHz and the SPS transmission period as 10 ms as an example, it is assumed that one SPS transmission opportunity can schedule 6 time slots. To avoid the above problems, multiple HARQ processes can be configured for the TB transmitted by SPS. One possible way is: the first SPS transmission occupies HARQ processes 0-5, and the second SPS transmission occupies HARQ processes 6-11, the third SPS transmission occupies HARQ processes 0-5 again, and the fourth SPS transmission occupies HARQ processes 6-11 are occupied again, and so on.
  • the existing scheme expects to use the allocation method of the HARQ process shown in Figure 11 to try to avoid the HARQ process occupied by the retransmission caused by the first SPS transmission error, so that the HARQ process of the initial transmission and the retransmission collide.
  • Fig. 12 is a scene diagram of HARQ process collision.
  • the TB transmission error in time slot D00 corresponding to HARQ process 0 continues to use HARQ process 0 to retransmit the TB in time slot D16 through dynamic scheduling. If the TB continues to transmit errors in the time slot D16, the HARQ process 0 will continue to be occupied. And the HARQ process 0 should be used in the time slot D20 for the initial transmission of new data of another SPS transmission opportunity. According to the provisions of the existing protocol, the SPS transmission opportunity will directly occupy the HARQ process 0 for the initial transmission of new data in the time slot D20, while the data in the previous time slot D00 is still not received correctly.
  • the UE may think that the data transmitted in time slot D26 is the retransmission of time slot D20, resulting in ambiguous data decoding, and then Affects the decoding of data in slot D20.
  • Fig. 13 is another scene diagram of HARQ process collision.
  • take the downlink SPS transmission as an example assuming that in the time slot D27, the base station uses HARQ process 0 for dynamic scheduling transmission, but the decoding error occurs at the UE side.
  • the base station continues to use the HARQ process 0 to retransmit on the time slot D35, but the UE still does not receive it correctly. If at this time, the data transmitted by the SPS in the time slot D40 needs to be transmitted using HARQ process 0, according to the current agreement, the HARQ process 0 will be cleared and directly used to receive the data transmitted by the SPS in the time slot D40.
  • each UE can configure a maximum of 16 HARQ processes.
  • One solution is to increase the upper limit of the HARQ process, for example, increase the number of HARQ processes that can be configured by each UE to 32 Or more.
  • the capability of the UE may not be able to support so many HARQ processes.
  • an increase in the number of HARQ processes will lead to changes in related configurations (for example, the size of the DCI). In actual operation, these factors make this scheme difficult to realize.
  • the present application proposes the following technical solution to solve the problem of HARQ process collision in the above scenario.
  • FIG. 14 shows another semi-persistent scheduling method provided by this application.
  • the method 700 in FIG. 14 and the method 200 in FIG. 2 are based on a general design concept and have corresponding specific technical features.
  • the method 700 is introduced below.
  • the receiving end receives configuration information, where the configuration information is used to configure the first SS associated with the semi-static transmission.
  • the sending end sends an activation signaling, where the activation signaling is used to activate the semi-static transmission.
  • the receiving end receives the first control channel, where the first control channel belongs to the first SS.
  • the receiving end monitors the control channel candidates of the first SS to obtain the first control channel.
  • the first control channel indicates information of M HARQ processes corresponding to the M data transmission units scheduled by the semi-persistent transmission, where M is an integer greater than 1.
  • the first control channel includes fifth indication information, where the fifth indication information indicates information of M HARQ processes corresponding to the M data transmission units scheduled by the semi-persistent transmission.
  • the information of the M HARQ processes may be M HARQ process numbers.
  • the information included in the first control channel may be as shown in Table 6.
  • HARQ process 0 4bits HARQ process 1 4bits HARQ process 2 4bits HARQ process 3 4bits
  • FIG. 15 is a schematic diagram of a HARQ process indicating semi-static transmission provided in this application.
  • a SPS transmission opportunity schedules 4 time slots.
  • the first SPS transmission opportunity schedules 4 time slots D00-D03, and the second SPS transmission opportunity schedules 4 time slots D10-D13.
  • the data on the time slot D02 corresponding to the HARQ process 2 is decoded incorrectly, and the UE feeds back NACK information to the base station in the uplink time slot U00.
  • the base station dynamically schedules and continues to use the HARQ process 2 on the time slot D15 to retransmit the data on the time slot D02. Assuming that the retransmission of time slot 15 continues to be wrong, the UE feeds back NACK information to the base station in the uplink time slot U10. Since the data on the time slot D02 corresponding to the HARQ process 2 has not been received correctly, the HARQ process 2 continues to be occupied. According to the semi-static configuration, the third SPS transmission opportunity schedules four time slots D20-D23, wherein, the HARQ process 2 should be used for the initial transmission of new data on the time slot D22.
  • the base station In order to avoid the HARQ process 2 being forced to be used for the initial transmission of new data on the time slot D22 according to the provisions of the existing protocol, resulting in waste of resources in the time slots D02 and D15, and causing ambiguity in the decoding of the receiving end on the time slot D22 , in this application, based on the NACK information on U01, in the first PDCCH before the third SPS transmission opportunity, the base station indicates the four HARQ processes that should be used in the four time slots D20-D23 invoked by the third SPS transmission opportunity They are HARQ process 0, HARQ process 1, HARQ process 4 and HARQ process 3.
  • the HARQ process 2 occupied by the retransmission of data on the time slot D02 will not be used in the third SPS transmission opportunity, thereby avoiding the collision of the HARQ process 2 .
  • the ambiguity of data decoding at the receiving end on the time slot D22 is avoided, and the correctness of data decoding in the existing solution is improved.
  • the fifth indication information is used to indicate the offset information of the M HARQ processes corresponding to the M data transmission units, where the M data transmission units
  • the offset information of the HARQ process corresponding to the jth data transmission unit in indicates that the HARQ process number adopted by the jth data transmission unit in this semi-persistent scheduling opportunity is relative to the configuration information configuration of the HARQ process number
  • the indication information included in the first control channel may be as shown in Table 7.
  • the fifth indication information indicates M offset information, where each offset information is used to determine the current time of one data transmission unit among the M data transmission units.
  • the HARQ process that should be used in the secondary semi-persistent scheduling transmission is M offset information, where each offset information is used to determine the current time of one data transmission unit among the M data transmission units.
  • TB is an example of a data transfer unit.
  • FIG. 16 is another schematic diagram of a HARQ process indicating semi-static transmission in this application. It should be noted that FIG. 16 is an improvement on the solution in FIG. 15 , and the same parts will not be repeated.
  • the configuration information corresponding to the third SPS transmission opportunity indicates that the HARQ process numbers of the four time slots D20-D23 scheduled by the third SPS transmission opportunity are 0, 1, 4, and 3 in sequence
  • the configuration information corresponding to the third SPS transmission opportunity indicates the HARQ used in this SPS transmission opportunity for the four time slots D20-D23 scheduled by the third SPS transmission opportunity
  • the process number is the offset information of the HARQ process number used in this SPS transmission opportunity relative to the four time slots D20-D23 configured semi-statically.
  • one SPS transmission is configured with 8 HARQ processes.
  • time slot D20 uses HARQ process 0 in the third SPS transmission opportunity, and the fifth indication indicates that time slot D20 is in the third SPS transmission opportunity.
  • the HARQ process 0 is also used, and it can be seen that the offset value of the two HARQ processes is 0.
  • time slot D21 adopts HARQ process 1 in the third SPS transmission opportunity, and the fifth indication indicates that time slot D21 also adopts HARQ process 1 in the third SPS transmission opportunity, two HARQ Processes have an offset of 0.
  • time slot D22 uses HARQ process 2 in the third SPS transmission opportunity
  • the fifth indication indicates that time slot D22 also uses HARQ process 4 in the third SPS transmission opportunity. It can be seen that the two The offset value of the HARQ process is 2. It can be seen that the offset value of the HARQ process corresponding to the time slot D23 is also 0, which will not be repeated here.
  • the method 700 may also include step 740 .
  • the receiving end decodes the data received on the M data transmission units according to the information of the M HARQ processes indicated by the first control channel.
  • method 700 may further include steps 750-760.
  • the sending end sends deactivation signaling, where the deactivation signaling is used to deactivate the semi-static transmission.
  • the terminal device After receiving the deactivation signaling, the terminal device stops monitoring the control channel candidates of the first SS.
  • the deactivation signaling may also be a release signaling, wherein the deactivation signaling and the release signaling may be different types of signaling, and the terminal device receives the release signaling Then stop monitoring the control channel candidates of the first SS.
  • the release signaling is used to release the semi-static transmission.
  • the release signaling may be RRC signaling or other types of signaling, which is not limited.
  • the deactivation signaling and release signaling in step S750 may be the same type of signaling, the sending end sends the deactivation signaling/release signaling, and the terminal device receives the deactivation signaling/ After releasing the signaling, stop monitoring the control channel candidates of the first SS.
  • method for indicating the HARQ process in method 700 can also be applied to uplink transmission or sidelink transmission, and the procedures are similar. Those skilled in the art can How to design the process of knowing the uplink transmission or sidelink transmission is not described here.
  • the configuration information of the semi-persistent scheduled transmission is associated with an SS, and the receiving end obtains the first control channel by monitoring the control channel candidates of the SS, and the first control channel can display and indicate the semi-persistent transmission
  • the scheduled HARQ processes of the M data transmission units avoid the collision of the HARQ processes and the resulting waste of system resources and ambiguous decoding problems introduced above.
  • each implementation manner of the method 200 in FIG. 2 may be used in combination with each implementation manner of the method 700 in FIG. 14 .
  • the first control channel may include the first indication information and the fifth indication information, As shown in Table 8.
  • the first control channel may include the first The indication information, the second indication information and the fifth indication information are shown in Table 9.
  • the first control channel may include the first The indication information, the third indication information and the fifth indication information are shown in Table 10.
  • the first control The channel may include first indication information, third indication information, fourth indication information, and fifth indication information, as shown in Table 11.
  • FIG. 17 is a schematic block diagram of a communication device provided by the present application.
  • the communication device 1000 includes a processing unit 1100 , a receiving unit 1200 and a sending unit 1300 .
  • the communication device 1000 may correspond to the receiving end in this embodiment of the present application.
  • each unit of the communication device 1000 is used to realize the following functions:
  • the receiving unit 1200 is configured to receive configuration information, the configuration information is used to configure a first search space SS associated with semi-static transmission, and the first SS is valid during activation of the semi-static transmission;
  • the first control channel belongs to the first SS, and the first control channel indicates the information of the modulation mode and/or coding mode of the semi-static transmission.
  • the processing unit 1100 is configured to monitor control channel candidates of the first SS during activation of the semi-static transmission, and obtain the first control channel.
  • the receiving unit 1200 is further configured to receive a first activation signaling, where the first activation signaling is used to activate the semi-static transmission;
  • processing unit 1100 is further configured to monitor the control channel candidates of the first SS when or after the semi-static transmission is activated.
  • the configuration information is used to activate the semi-static transmission.
  • the configuration information is used to configure the first SS associated with semi-static transmission, including:
  • the configuration information indicates the index of the first SS.
  • the receiving unit 1200 is further configured to receive first data after receiving the first control channel, where the first data is scheduled through the semi-persistent transmission;
  • processing unit 1100 is further configured to decode the first data according to the modulation mode and/or coding mode information indicated by the first control channel.
  • the monitoring time of the first SS is located in the same time slot as the first time, wherein the first time is after the monitoring time of the first SS, and is the same as the first time The transmission time of the closest semi-static transmission to the monitoring time of the first SS.
  • the first control channel is further used to indicate whether to blindly detect a second control channel at a second moment, where the second control channel is used to schedule second data, and the first The second time is later than the monitoring time of the first control channel.
  • the first control channel is further used to indicate blind detection of the second control channel and a time range for blind detection of the second control channel
  • the second control channel is used for scheduling second data.
  • the semi-static transmission is further associated with a second SS, and the second control channel belongs to the second SS.
  • the configuration information is also used to configure information of HARQ processes corresponding to the M data transmission units scheduled by the semi-persistent transmission,
  • the first control channel is further used to indicate M HARQ process numbers corresponding to the M data transmission units, where M is greater than 1 and M is an integer.
  • the first control channel is further used to indicate information of M HARQ processes corresponding to the M data transmission units, including:
  • the first control channel is further used to indicate the respective offset information of the M HARQ processes corresponding to the M data transmission units
  • the offset information of the HARQ process corresponding to the jth data transmission unit among the M data transmission units indicates that the HARQ process number corresponding to the jth data transmission unit in this semi-persistently scheduled transmission opportunity is relative to
  • the offset of the HARQ process number corresponding to the jth data transmission unit configured in the configuration information in this semi-persistent scheduling transmission opportunity, 1 ⁇ j ⁇ M, and j is an integer.
  • each unit of the communication device 1000 has the following functions:
  • a receiving unit 1200 configured to receive configuration information, where the configuration information is used to configure a first search space SS associated with semi-static transmission;
  • the first control channel belongs to the first SS, and the first control channel indicates M hybrid automatic repeat transmission HARQ corresponding to the M data transmission units scheduled by the semi-static transmission Process information, M is an integer greater than 1.
  • the first control channel is used to indicate information of M HARQ processes corresponding to the M data transmission units, including:
  • the first control channel is used to indicate the offset information of the M HARQ processes corresponding to the M data transmission units
  • the offset information of the HARQ process corresponding to the jth data transmission unit among the M data transmission units indicates that the HARQ process number used by the jth data transmission unit in this semi-persistent scheduling transmission opportunity is relative to The offset of the HARQ process number used by the jth data transmission unit in this semi-persistent scheduling transmission opportunity configured in the configuration information, where 1 ⁇ j ⁇ M, and j is an integer.
  • the receiving unit 1200 and the sending unit 1300 may also be integrated into a transceiver unit, which has the functions of receiving and sending at the same time, which is not limited here.
  • the processing unit 1100 is configured to perform processing and/or operations implemented internally by the receiving end except for the actions of sending and receiving.
  • the receiving unit 1200 is configured to perform an action of receiving
  • the sending unit 1300 is configured to perform an action of sending.
  • the receiving unit 1200 is configured to perform the operation of receiving configuration information in step 210, the operation of receiving activation signaling in step 220, the operation of receiving the first control channel in step 230, and receiving the first data in step 240.
  • the processing unit 1100 is configured to execute the processing of step 250 and step 270 .
  • the receiving unit 1200 is configured to perform the operation of receiving configuration information in step 710, the operation of receiving activation signaling in step 720, the operation of receiving the first control channel in step 730, and receiving the deactivation signal in step 750. Signaling operations.
  • the processing unit 1100 is configured to execute the processing of step 740 and step 760 .
  • the communication device 1000 may correspond to the sending end in this embodiment of the present application.
  • each unit of the communication device 1000 is used to implement the following functions:
  • a sending unit 1300 configured to send configuration information, the configuration information is used to configure a first search space SS associated with semi-static transmission, and the first SS is valid during activation of the semi-static transmission;
  • the sending unit 1300 is further configured to send a first activation signaling, where the first activation signaling is used to activate the semi-static transmission.
  • the sending unit 1300 is further configured to send a first deactivation signaling, where the first deactivation signaling is used to deactivate the semi-static transmission.
  • the configuration information is used to activate the semi-static transmission.
  • the sending unit 1300 is also configured to:
  • the first data is scheduled through the semi-persistent transmission.
  • each unit of the communication device 1000 has the following functions:
  • a sending unit 1300 configured to send configuration information, where the configuration information is used to configure the first search space SS associated with semi-static transmission;
  • the first control channel belongs to the first SS, and the first control channel indicates M hybrid automatic repeat transmission HARQ corresponding to the M data transmission units scheduled by the semi-static transmission Process information, M is an integer greater than 1.
  • the first control channel is used to indicate information of M HARQ processes corresponding to the M data transmission units, including:
  • the first control channel is used to indicate the offset information of the M HARQ processes corresponding to the M data transmission units
  • the offset information of the HARQ process corresponding to the jth data transmission unit among the M data transmission units indicates that the HARQ process number used by the jth data transmission unit in this semi-persistent scheduling transmission opportunity is relative to The offset of the HARQ process number used by the jth data transmission unit in this semi-persistent scheduling transmission opportunity configured in the configuration information, where 1 ⁇ j ⁇ M, and j is an integer.
  • the receiving unit 1200 and the sending unit 1300 may also be integrated into a transceiver unit, which has the functions of receiving and sending at the same time, which is not limited here.
  • the processing unit 1100 is configured to perform processing and/or operations implemented internally by the sending end except for the actions of sending and receiving.
  • the receiving unit 1200 is configured to perform an action of receiving
  • the sending unit 1300 is configured to perform an action of sending.
  • the sending unit 1300 is configured to perform the operation of sending configuration information in step 210, the operation of sending activation signaling in step 220, the operation of sending the first control channel in step 230, and sending the first data in step 240.
  • the sending unit 1300 is configured to perform the operation of sending the configuration information in step 710, the operation of sending the activation signaling in step 720, the operation of sending the first control channel in step 730, and the sending of the deactivation signal in step 750. Signaling operations.
  • FIG. 18 is a schematic structural diagram of a communication device provided by the present application.
  • the communication device 10 includes: one or more processors 11 , one or more memories 12 and one or more communication interfaces 13 .
  • the processor 11 is used to control the communication interface 13 to send and receive signals
  • the memory 12 is used to store a computer program
  • the processor 11 is used to call and run the computer program from the memory 12, so that the communication device 10 executes the method described in each method embodiment of the present application. Processing performed by the sender or receiver.
  • the processor 11 may have the functions of the processing unit 1100 shown in FIG. 17
  • the communication interface 13 may have the functions of the receiving unit 1200 and/or the sending unit 1300 shown in FIG. 17 .
  • the processor 11 may be used to perform processing or operations internally performed by the communication device, and the communication interface 13 is used to perform sending and/or receiving operations by the communication device.
  • the communication device 10 may be the receiving end in the method embodiment.
  • the communication interface 13 may be a transceiver. Transceivers may include receivers and/or transmitters.
  • the processor 11 may be a baseband device, and the communication interface 13 may be a radio frequency device.
  • the communication device 10 may be a chip (or chip system) installed in the receiving end.
  • the communication interface 13 may be an interface circuit or an input/output interface.
  • the communication device 10 may be the sending end in the method embodiment.
  • the communication interface 13 may be a transceiver. Transceivers may include receivers and/or transmitters.
  • the processor 11 may be a baseband device, and the communication interface 13 may be a radio frequency device.
  • the communication device 10 may be a chip (or chip system) installed in the sending end.
  • the communication interface 13 may be an interface circuit or an input/output interface.
  • the dotted box behind the device indicates that there may be more than one device.
  • the memory and the processor in the foregoing apparatus embodiments may be physically independent units, or the memory and the processor may also be integrated together, which is not limited herein.
  • the present application also provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are run on the computer, the operations performed by the sending end in each method embodiment of the present application are and/or processing is performed.
  • the present application also provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are run on the computer, the operations and/or operations performed by the receiving end in each method embodiment of the present application are or processing is performed.
  • the present application also provides a computer program product.
  • the computer program product includes computer program codes or instructions. When the computer program codes or instructions are run on the computer, the operations performed by the sending end in each method embodiment of the present application and/or or processing is performed.
  • the present application also provides a computer program product.
  • the computer program product includes computer program codes or instructions. When the computer program codes or instructions are run on the computer, the operations and/or processing performed by the receiving end in each method embodiment of the present application are be executed.
  • the present application also provides a chip, the chip includes a processor, the memory for storing the computer program is set independently of the chip, the processor is used for executing the computer program stored in the memory, so that the sending end of the chip is installed Execute the operations and/or processing performed by the sending end in any method embodiment.
  • the chip may further include a communication interface.
  • the communication interface may be an input/output interface, or an interface circuit or the like.
  • the chip may further include the memory.
  • the present application also provides a chip, the chip includes a processor, a memory for storing computer programs is provided independently of the chip, and the processor is used for executing the computer programs stored in the memory, so that the receiving end installed with the chip executes any Operations and/or processing performed by a receiving end in a method embodiment.
  • the chip may further include a communication interface.
  • the communication interface may be an input/output interface, or an interface circuit or the like.
  • the chip may further include the memory.
  • processors there may be one or more processors, one or more memories, and one or more memories.
  • the present application also provides a communication device (for example, it may be a chip or a chip system), including a processor and a communication interface, the communication interface is used to receive (or be referred to as input) data and/or information, and will receive The received data and/or information are transmitted to the processor, and the processor processes the data and/or information, and the communication interface is also used to output (or be referred to as output) the data and/or processed by the processor or information, so that the operation and/or processing performed by the sending end in any method embodiment is performed.
  • a communication device for example, it may be a chip or a chip system
  • the communication interface is used to receive (or be referred to as input) data and/or information, and will receive The received data and/or information are transmitted to the processor, and the processor processes the data and/or information, and the communication interface is also used to output (or be referred to as output) the data and/or processed by the processor or information, so that the operation and/or processing performed by the sending end in any method embodiment is performed
  • the present application also provides a communication device (for example, it may be a chip or a chip system), including a processor and a communication interface, the communication interface is used to receive (or be referred to as input) data and/or information, and the received The data and/or information are transmitted to the processor, and the processor processes the data and/or information, and the communication interface is also used to output (or be referred to as output) the data and/or information processed by the processor , so that the operation and/or processing performed by the receiving end in any method embodiment is performed.
  • a communication device for example, it may be a chip or a chip system
  • the communication interface is used to receive (or be referred to as input) data and/or information, and the received
  • the data and/or information are transmitted to the processor, and the processor processes the data and/or information
  • the communication interface is also used to output (or be referred to as output) the data and/or information processed by the processor , so that the operation and/or processing performed by the receiving end in any method embodiment is performed
  • the present application also provides a communication device, including at least one processor, the at least one processor is coupled to at least one memory, and the at least one processor is configured to execute computer programs or instructions stored in the at least one memory, The communication device is made to perform the operation and/or processing performed by the sending end in any one method embodiment.
  • the present application also provides a communication device, including at least one processor, the at least one processor is coupled to at least one memory, and the at least one processor is used to execute the computer program or instruction stored in the at least one memory, so that the The above communication device performs the operations and/or processes performed by the receiving end in any one method embodiment.
  • the present application also provides a communication device, including a processor and a memory.
  • a transceiver may also be included.
  • the memory is used to store computer programs
  • the processor is used to call and run the computer programs stored in the memory, and control the transceiver to send and receive signals, so that the communication device performs the operation and/or processing performed by the sending end in any method embodiment .
  • the present application also provides a communication device, including a processor and a memory.
  • a transceiver may also be included.
  • the memory is used to store computer programs
  • the processor is used to call and run the computer programs stored in the memory, and control the transceiver to send and receive signals, so that the communication device performs the operation and/or processing performed by the receiving end in any method embodiment .
  • the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories.
  • the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically programmable Erases programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory can be random access memory (RAM), which acts as external cache memory.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM direct memory bus random access memory
  • direct rambus RAM direct rambus RAM
  • the methods provided in the foregoing embodiments may be implemented in whole or in part 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 may comprise one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server, or data center by wired (eg, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.) means.
  • 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 or a data center integrated with one or more available media.
  • numbers such as “first” and “second” are used to distinguish the same or similar items with basically the same function and effect.
  • the first indication information and the second indication information are only for distinguishing different indication information
  • the first activation signaling and the second activation signaling are only for distinguishing different activation signalings.
  • numbers such as “first” and “second” do not limit the quantity and execution sequence, and words such as “first” and “second” do not necessarily mean that they are different.
  • “at least one” means one or more, and “multiple” 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 item (unit) of a, b, or c may represent: a, b, c; a and b; a and c; b and c; or a and b and c.
  • a, b, c can be single or multiple.
  • 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.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande concerne un procédé de planification semi-persistante et un dispositif de communication. Un terminal émetteur associe, dans des informations de configuration permettant de configurer une transmission semi-persistante, la transmission semi-persistante avec un espace de recherche d'un terminal de réception, l'espace de recherche étant valide dans une période d'activation de la transmission semi-persistante. Le terminal de réception surveille des canaux de commande candidats de l'espace de recherche pour recevoir un premier canal de commande, le premier canal de commande indiquant les informations d'un mode de modulation et/ou d'un mode de codage de la transmission semi-persistante. Grâce à ce procédé, il est possible de répondre au besoin de faible consommation d'énergie du terminal de réception. De plus, les paramètres de configuration de la transmission semi-persistante peuvent également être modifiés de manière flexible afin de s'adapter à un changement dans un état de canal, ce qui permet d'améliorer la fiabilité de la transmission semi-persistante.
PCT/CN2022/092772 2021-06-01 2022-05-13 Procédé de planification semi-persistante et dispositif de communication WO2022252967A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202110610954 2021-06-01
CN202110610954.4 2021-06-01
CN202110888227.4 2021-08-03
CN202110888227.4A CN115441987A (zh) 2021-06-01 2021-08-03 半静态调度的方法和通信装置

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106105079A (zh) * 2014-03-21 2016-11-09 高通股份有限公司 针对LTE中的eIMTA的半持久调度
CN111095988A (zh) * 2017-08-11 2020-05-01 中兴通讯股份有限公司 搜索空间监视
WO2020131280A1 (fr) * 2018-12-20 2020-06-25 Qualcomm Incorporated Planification semi-persistante avec de multiples points d'émission-réception

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106105079A (zh) * 2014-03-21 2016-11-09 高通股份有限公司 针对LTE中的eIMTA的半持久调度
CN111095988A (zh) * 2017-08-11 2020-05-01 中兴通讯股份有限公司 搜索空间监视
WO2020131280A1 (fr) * 2018-12-20 2020-06-25 Qualcomm Incorporated Planification semi-persistante avec de multiples points d'émission-réception

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