WO2024255537A1 - Procédé, appareil et système de communication - Google Patents

Procédé, appareil et système de communication Download PDF

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Publication number
WO2024255537A1
WO2024255537A1 PCT/CN2024/094278 CN2024094278W WO2024255537A1 WO 2024255537 A1 WO2024255537 A1 WO 2024255537A1 CN 2024094278 W CN2024094278 W CN 2024094278W WO 2024255537 A1 WO2024255537 A1 WO 2024255537A1
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WIPO (PCT)
Prior art keywords
type
frequency resource
resource set
time
value
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PCT/CN2024/094278
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English (en)
Chinese (zh)
Inventor
王碧钗
李雪茹
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/40—Resource management for direct mode communication, e.g. D2D or sidelink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present application relates to the field of communications, and in particular to a communication method, device and system.
  • UE user equipment
  • RedCap UE reduced capability UE
  • Regular UE may also be called normal UE, non-RedCap UE, etc.
  • SCI second-order sidelink control information
  • the second-order SCI may also be called SCI2.
  • the receiving UE needs to decode SCI2 before determining whether it needs to decode the data in the physical sidelink shared channel (PSSCH).
  • PSSCH physical sidelink shared channel
  • RedCap UE and Regular UE use the same physical sidelink control channel (PSCCH) format, even if the transmitting UE sends data to the Regular UE, the RedCap UE needs to decode SCI2, resulting in unnecessary PSSCH channel estimation and SCI2 decoding power consumption.
  • PSCCH physical sidelink control channel
  • the present application provides a communication method, apparatus and system, which can reduce the power consumption of equipment.
  • a communication method is provided, which can be executed by a terminal device, or can also be executed by a chip or circuit used for the terminal device, which is not limited in the present application.
  • a communication method is provided, which can be executed by a terminal device, or can also be executed by a chip or circuit used for the terminal device, which is not limited in the present application.
  • the following description is given by taking the execution of the first device as an example.
  • the method includes: a first device receives first sideline control information, the first sideline control information is used to schedule a first sideline signal, the first sideline control information includes first indication information, the first indication information includes a first field and a second field, when the first field takes a first value, the second field is used to indicate the type of a receiving device corresponding to the first sideline signal, wherein the type of the receiving device includes a first type and a second type, and there is an overlapping part between the time-frequency resource set of the first type of device and the time-frequency resource set of the second type of device, wherein the bandwidth supported by the first type of device is smaller than the bandwidth supported by the second type of device; the first device determines whether to detect the first sideline signal according to the first indication information.
  • the first side signal may be one or more of a second-order SCI, data, a reference signal or feedback information.
  • the first device is a receiving device.
  • the first indication information (or the second field in the first indication information) can indicate the type of the receiving device.
  • the first device determines whether to detect the first side signal based on the type of the receiving device indicated by the first indication information and the type of the first device. If the first device determines that the type of the first device is different from the type of the receiving device indicated by the first indication information, the first device may not detect the first side signal, thereby avoiding unnecessary detection that may exist when different types of devices coexist, and reducing the power consumption of the receiving device.
  • the time-frequency resource set of the first type of device there is an overlap between the time-frequency resource set of the first type of device and the time-frequency resource set of the second type of device, including: the first type of device is configured with a first time-frequency resource set, the second type of device is configured with a second time-frequency resource set, there is an overlap between the resources in the first time-frequency resource set and the second time-frequency resource set, and the bandwidth of the first time-frequency resource set is smaller than the bandwidth of the second time-frequency resource set, the time-frequency resource set of the first type of device is the first time-frequency resource set, and the time-frequency resource set of the second type of device is the second time-frequency resource set; or, the first type of device and the second type of device are configured with a first time-frequency resource set, the time-frequency resource set of the first type of device is part of the resources in the first time-frequency resource set, and the time-frequency resource set of the second type of device is the first time-frequency resource set.
  • the first type of device is configured with a first time-frequency resource set
  • the second type of device is configured with a second time-frequency resource set
  • the resources in the first time-frequency resource set and the second time-frequency resource set overlap, and the first time-frequency resource set has The bandwidth is smaller than the bandwidth of the second time-frequency resource set; or, the first type of device and the second type of device are configured with a first time-frequency resource set, and some resources in the first time-frequency resource set can be used by the first type of device.
  • the receiving device corresponding to the first sidelink signal includes one or more devices, and the second field is used to indicate the type of the one or more devices.
  • the second field when the value of the second field is a third value, the second field indicates that the one or more devices are devices of the first type, and when the value of the second field is a fourth value, the second field indicates that the one or more devices are devices of the second type.
  • the first device determines whether to detect the first sidewalk signal according to the first indication information, including:
  • the first device When the first device is a device of the first type, if the value of the second field is the third value, the first device determines to detect the first side signal, and if the value of the second field is the fourth value, the first device determines not to detect the first side signal.
  • the first device When the first device is a device of the second type, if the value of the second field is the third value, the first device determines not to detect the first side signal, and if the value of the second field is the fourth value, the first device determines to detect the first side signal;
  • the second field indicates that the one or more devices are all devices of the first type; when the value of the second field is the fourth value, the second field indicates that at least one of the one or more devices is a device of the second type.
  • the first device determines whether to detect the first sidewalk signal according to the first indication information, including:
  • the first device determines to detect the first sideline signal
  • the first device When the first device is a device of the second type, if the value of the second field is the third value, the first device determines not to detect the first side signal, and if the value of the second field is the fourth value, the first device determines to detect the first side signal;
  • the second field indicates that at least one of the one or more devices belongs to the first type of device; when the value of the second field is the fourth value, the second field indicates that the one or more devices all belong to the second type of device.
  • the first device determines whether to detect the first sidewalk signal according to the first indication information, including:
  • the first device When the first device is a device of the first type, if the value of the second field is the third value, the first device determines to detect the first side signal, and if the value of the second field is the fourth value, the first device determines not to detect the first side signal.
  • the first device determines to detect the first sideline signal
  • the second field indicates that the one or more devices are all devices of the first type; when the value of the second field is the fourth value, the second field indicates that the one or more devices are all devices of the second type; when the value of the second field is the fifth value, the second field indicates that the one or more devices include devices of the first type and devices of the second type.
  • the first device determines whether to detect the first sidewalk signal according to the first indication information, including:
  • the first device When the first device is a device of the first type, if the value of the second field is the third value or the fifth value, the first device determines to detect the first side signal; if the value of the second field is the fourth value, the first device determines not to detect the first side signal.
  • the first device When the first device is the second type of device, if the value of the second field is the third value, the first device determines not to detect the first side signal; if the value of the second field is the fourth value or the fifth value, the first device determines to detect the first side signal.
  • the first device determines to detect the first sideline signal.
  • the second field indicates the type of the receiving device, that is, the first device can receive the second value according to the first value.
  • the first device determines whether to detect the first sideline signal according to the type of receiving device indicated by the second field and the type of the first device. If the first device determines that the type of the first device is different from the type of the receiving device indicated by the second field, the first device may not detect the first sideline signal, thereby avoiding unnecessary detection that may exist when different types of devices coexist, and reducing the power consumption of the receiving device.
  • the second field does not indicate the type of the receiving device, that is, the first device cannot determine whether the first sideline signal is sent to the first device according to the second field. In order to avoid missed detection, the first device detects the first sideline signal.
  • the first device in this application is a terminal device, and may also be a component or device (such as a processor, chip, or chip system, etc.) applied to the terminal device, or a logic module or software that can realize all or part of the functions of the terminal device.
  • the second device is a terminal device, and may also be a component or device (such as a processor, chip, or chip system, etc.) applied to the terminal device, or a logic module or software that can realize all or part of the functions of the terminal device.
  • a communication method is provided, which can be executed by a terminal device, or can also be executed by a chip or circuit used for the terminal device, which is not limited in this application.
  • a communication method is provided, which can be executed by a terminal device, or can also be executed by a chip or circuit used for the terminal device, which is not limited in this application.
  • the following description is taken as an example of execution by a second device.
  • the method includes: the second device sends first sideline control information, the first sideline control information is used to schedule a first sideline signal, the first sideline control information includes first indication information, the first indication information includes a first field and a second field, when the first field takes a first value, the second field is used to indicate the type of receiving device corresponding to the first sideline signal, wherein the type of receiving device includes a first type and a second type, there is an overlapping part between the time-frequency resource set of the first type of device and the time-frequency resource set of the second type of device, and the bandwidth supported by the first type of device is smaller than the bandwidth supported by the second type of device; the second device sends the first sideline signal.
  • the time-frequency resource set of the first type of device there is an overlap between the time-frequency resource set of the first type of device and the time-frequency resource set of the second type of device, including: the first type of device is configured with a first time-frequency resource set, the second type of device is configured with a second time-frequency resource set, there is an overlap between the resources in the first time-frequency resource set and the second time-frequency resource set, and the bandwidth of the first time-frequency resource set is smaller than the bandwidth of the second time-frequency resource set, the time-frequency resource set of the first type of device is the first time-frequency resource set, and the time-frequency resource set of the second type of device is the second time-frequency resource set; or, the first type of device and the second type of device are configured with a first time-frequency resource set, the time-frequency resource set of the first type of device is part of the resources in the first time-frequency resource set, and the time-frequency resource set of the second type of device is the first time-frequency resource set.
  • the first type of device is configured with a first time-frequency resource set
  • the second type of device is configured with a second time-frequency resource set
  • the first type of device and the second type of device are configured with a first time-frequency resource set, and some resources in the first time-frequency resource set can be used by the first type of device.
  • the receiving device corresponding to the first sidelink signal includes one or more devices, and the second field is used to indicate the type of the one or more devices.
  • the second field when the value of the second field is a third value, the second field indicates that the one or more devices are all devices of the first type, and when the value of the second field is a fourth value, the second field indicates that the one or more devices are all devices of the second type; or,
  • the second field indicates that the one or more devices are all devices of the first type; when the value of the second field is the fourth value, the second field indicates that at least one of the one or more devices is a device of the second type; or
  • the second field indicates that at least one of the one or more devices belongs to the first type of device
  • the second field indicates that the one or more devices all belong to the second type of device
  • the second field indicates that the one or more devices are all devices of the first type.
  • the second field indicates that the one or more devices are all devices of the second type.
  • the second field indicates that the one or more devices include devices of the first type and devices of the second type.
  • a communication method is provided, which can be executed by a terminal device, or can also be executed by a chip or circuit used for a terminal device, which is not limited in this application.
  • a communication method is provided, which can be executed by a terminal device, or can also be executed by a chip or circuit used for a terminal device, which is not limited in this application.
  • the following description is taken as an example of execution by a first device.
  • the method includes: a first device receives first sideline control information from a second device, the first sideline control information is used to schedule a first sideline signal, the first sideline control information includes first indication information, and the first indication information is used to indicate that the first sideline control whether the information includes identification information corresponding to the first side signal; when the first indication information indicates that the first side control information includes identification information corresponding to the first side signal, the first device determines whether to detect the first side signal according to the identification information corresponding to the first side signal.
  • the first device determines whether the first side control information includes identification information based on the first indication information.
  • the first indication information indicates that the first side control information includes identification information corresponding to the first side signal
  • the first device determines whether to detect the first side signal based on the identification information corresponding to the first side signal. If the identification information corresponding to the first side signal is the same as all or part of the fields of the identification information corresponding to the first device, the first device detects the first side signal. Otherwise, there is no need to detect the first side signal. This avoids the problem that the first device needs to always detect the first side signal, and can reduce the power consumption of the first device.
  • the first device and the second device are both devices of the first type, or the first device is a device of the first type and the second device is a device of the second type, or the first device is a device of the second type and the second device is a device of the first type, there is an overlap between the time-frequency resource set of the first type of device and the time-frequency resource set of the second type of device, and the bandwidth supported by the first type of device is smaller than the bandwidth supported by the second type of device.
  • the time-frequency resource set of the first type of device there is an overlap between the time-frequency resource set of the first type of device and the time-frequency resource set of the second type of device, including: the first type of device is configured with a first time-frequency resource set, the second type of device is configured with a second time-frequency resource set, there is an overlap between the resources in the first time-frequency resource set and the second time-frequency resource set, and the bandwidth of the first time-frequency resource set is smaller than the bandwidth of the second time-frequency resource set, the time-frequency resource set of the first type of device is the first time-frequency resource set, and the time-frequency resource set of the second type of device is the second time-frequency resource set; or, the first type of device and the second type of device are configured with a first time-frequency resource set, the time-frequency resource set of the first type of device is part of the resources in the first time-frequency resource set, and the time-frequency resource set of the second type of device is the first time-frequency resource set.
  • the first type of device is configured with a first time-frequency resource set
  • the second type of device is configured with a second time-frequency resource set
  • the first type of device and the second type of device are configured with a first time-frequency resource set, and some resources in the first time-frequency resource set can be used by the first type of device.
  • the first indication information indicates that the first side control information includes identification information corresponding to the first side signal, and the number of bits of the identification information corresponding to the first side signal is determined based on the bandwidth size of the time-frequency resource set of the first type of device and the bandwidth size of the time-frequency resource set of the second type of device.
  • the number of bits B of the identification information corresponding to the first sideline signal satisfies the following relationship:
  • M is the number of frequency domain units included in the time-frequency resource set of the second type of device
  • N is the number of frequency domain units included in the time-frequency resource set of the first type of device
  • N is a positive integer
  • M is a positive integer greater than N.
  • the first device determines whether to detect the first side signal based on identification information corresponding to the first side signal, including: when the identification information corresponding to the first side signal is identical to all or part of the fields of identification information corresponding to the first device, the first device detects the first side signal.
  • the identification information corresponding to the first side signal includes at least one of the following: all or part of the bits of the source identification corresponding to the first side signal, all or part of the bits of the destination identification corresponding to the first side signal, all or part of the bits of the sending device identification corresponding to the first side signal, or all or part of the bits of the receiving device identification corresponding to the first side signal.
  • a communication method is provided, which can be executed by a terminal device, or can also be executed by a chip or circuit used for a terminal device, which is not limited in this application.
  • a communication method is provided, which can be executed by a terminal device, or can also be executed by a chip or circuit used for a terminal device, which is not limited in this application.
  • the following description is taken as an example of execution by a second device.
  • the method includes: the second device sends first sidewalk control information, the first sidewalk control information is used to schedule a first sidewalk signal, the first sidewalk control information includes first indication information, the first indication information indicates whether the first sidewalk control information includes identification information corresponding to the first sidewalk signal; the second device sends the first sidewalk signal to the first device.
  • the first device and the second device are both devices of the first type, or the first device is a device of the first type and the second device is a device of the second type, or the first device is a device of the second type and the second device is a device of the first type, there is an overlap between the time-frequency resource set of the first type of device and the time-frequency resource set of the second type of device, and the bandwidth supported by the first type of device is smaller than the bandwidth supported by the second type of device.
  • the time-frequency resource set of the first type of device and the time-frequency resource set of the second type of device are stored in In the overlapping part, it includes: the first type of device is configured with a first time-frequency resource set, the second type of device is configured with a second time-frequency resource set, there is overlap in resources between the first time-frequency resource set and the second time-frequency resource set, and the bandwidth of the first time-frequency resource set is smaller than the bandwidth of the second time-frequency resource set, the time-frequency resource set of the first type of device is the first time-frequency resource set, and the time-frequency resource set of the second type of device is the second time-frequency resource set; or, the first type of device and the second type of device are configured with the first time-frequency resource set, the time-frequency resource set of the first type of device is part of the resources in the first time-frequency resource set, and the time-frequency resource set of the second type of device is the first time-frequency resource set.
  • the first type of device is configured with a first time-frequency resource set
  • the second type of device is configured with a second time-frequency resource set
  • the first type of device and the second type of device are configured with a first time-frequency resource set, and some resources in the first time-frequency resource set can be used by the first type of device.
  • the first indication information indicates that the first side control information includes identification information corresponding to the first side signal, and the number of bits of the identification information corresponding to the first side signal is determined based on the bandwidth size of the time-frequency resource set of the first type of device and the bandwidth size of the time-frequency resource set of the second type of device.
  • the number of bits B of the identification information corresponding to the first sideline signal satisfies the following relationship:
  • M is the number of frequency domain units included in the time-frequency resource set of the second type of device
  • N is the number of frequency domain units included in the time-frequency resource set of the first type of device
  • N is a positive integer
  • M is a positive integer greater than N.
  • the identification information corresponding to the first side signal includes at least one of the following: all or part of the bits of the source identification corresponding to the first side signal, all or part of the bits of the destination identification corresponding to the first side signal, all or part of the bits of the sending device identification corresponding to the first side signal, or all or part of the bits of the receiving device identification corresponding to the first side signal.
  • the first sidelink control information is first order sidelink control information SCI.
  • the first sidelink control information is carried on a physical sidelink control channel PSCCH.
  • the first sidelink signal is carried on a physical sidelink shared channel PSSCH, and the PSSCH is associated with a PSCCH carrying the first sidelink control information.
  • the number of bits of control information carried by the PSCCH sent by the first type of device is the same as the number of bits of control information carried by the PSCCH sent by the second type of device.
  • the first sidelink signal is one or more of a second-order SCI, data, a reference signal, or feedback information.
  • an embodiment of the present application provides a communication device, comprising a transceiver unit and a processing unit, wherein the communication device is used to execute the method of the first aspect, or the third aspect, or any possible method in the first aspect, or any possible method in the third aspect, or all possible methods in the first aspect, or all possible methods in the third aspect.
  • an embodiment of the present application provides a communication device, comprising a transceiver unit and a processing unit, wherein the communication device is used to execute the method of the second aspect, or the fourth aspect, or any possible method in the second aspect, or any possible method in the fourth aspect, or all possible methods in the second aspect, or all possible methods in the fourth aspect.
  • an embodiment of the present application provides a communication device, including an interface circuit and a processor, wherein the interface circuit is used to implement the function of the transceiver module in the fifth aspect, and the processor is used to implement the function of the processing module in the fifth aspect.
  • an embodiment of the present application provides a communication device, comprising an interface circuit and a processor, wherein the interface circuit is used to implement the function of the transceiver module in the sixth aspect, and the processor is used to implement the function of the processing module in the sixth aspect.
  • an embodiment of the present application provides a computer-readable medium storing a program code for execution on a terminal device, the program code comprising instructions for executing the method of the first aspect, or the third aspect, or any possible manner in the first aspect, or any possible manner in the third aspect, or all possible manners in the first aspect, or all possible manners in the third aspect.
  • an embodiment of the present application provides a computer-readable medium storing a program code for execution by a network device, the program code comprising instructions for executing the method of the second aspect, or the fourth aspect, or any possible manner in the second aspect, or any possible manner in the fourth aspect, or all possible manners in the second aspect, or all possible manners in the fourth aspect.
  • a computer program product storing computer-readable instructions, which, when the computer-readable instructions are executed on a computer, causes the computer to execute the method of the first aspect, or the third aspect, or any possible manner in the first aspect, or any possible manner in the third aspect, or all possible manners in the first aspect, or all possible manners in the third aspect.
  • a computer program product storing computer-readable instructions, which, when the computer-readable instructions are executed on a computer, enables the computer to execute the method of the above-mentioned second aspect, or the fourth aspect, or any possible manner in the second aspect, or any possible manner in the fourth aspect, or all possible manners in the second aspect, or all possible manners in the fourth aspect.
  • a communication system which includes a method for implementing the above-mentioned first aspect, or the third aspect, or any possible manner in the first aspect, or any possible manner in the third aspect, or all possible manners in the first aspect, or all possible manners in the third aspect, the second aspect, or the fourth aspect, or any possible manner in the second aspect, or any possible manner in the fourth aspect, or all possible manners in the second aspect, or all possible manners in the fourth aspect, and a device with various possible designed functions.
  • a processor is provided, which is coupled to a memory and is used to execute the method of the above-mentioned first aspect, or the third aspect, or any possible manner in the first aspect, or any possible manner in the third aspect, or all possible manners in the first aspect, or all possible manners in the third aspect.
  • a processor is provided, which is coupled to a memory and is used to execute the method of the second aspect, or the fourth aspect, or any possible manner in the second aspect, or any possible manner in the fourth aspect, or all possible manners in the second aspect, or all possible manners in the fourth aspect.
  • a chip system in a sixteenth aspect, includes a processor and may also include a memory for executing a computer program or instruction stored in the memory, so that the chip system implements the method in any of the first aspect, the second aspect, the third aspect, or the fourth aspect, and any possible implementation of any aspect.
  • the chip system may be composed of a chip, or may include a chip and other discrete devices.
  • a communication method comprising: a second device sends first side control information to a first device, the first side control information is used to schedule a first side signal, the first side control information includes first indication information, the first indication information includes a first field and a second field, when the first field takes a first value, the second field is used to indicate the type of a receiving device corresponding to the first side signal, wherein the type of the receiving device includes a first type and a second type, and there is an overlapping part between the time-frequency resource set of the first type of device and the time-frequency resource set of the second type of device, wherein the bandwidth supported by the first type of device is smaller than the bandwidth supported by the second type of device; the second device sends the first side signal to the first device; the first device determines whether to detect the first side signal according to the first indication information.
  • a communication method comprising: a second device sends first sidewalk control information to a first device, the first sidewalk control information is used to schedule a first sidewalk signal, the first sidewalk control information includes first indication information, the first indication information indicates whether the first sidewalk control information includes identification information corresponding to the first sidewalk signal; the second device sends the first sidewalk signal to the first device; when the first indication information indicates that the first sidewalk control information includes identification information corresponding to the first sidewalk signal, the first device determines whether to detect the first sidewalk signal according to the identification information corresponding to the first sidewalk signal.
  • FIG1 shows a system architecture applicable to an embodiment of the present application.
  • FIG2( a ) shows a schematic diagram of frequency domain resources.
  • FIG2( b ) shows a schematic diagram of yet another frequency domain resource.
  • FIG3 shows a schematic diagram of a communication method.
  • FIG4 shows a schematic block diagram of a communication device.
  • FIG5 shows a schematic block diagram of yet another communication device.
  • FIG6 shows a schematic block diagram of yet another communication device.
  • FIG1 is a schematic diagram of the architecture of a communication system 1000 used in an embodiment of the present application.
  • the communication system includes a wireless access network 100 and a core network 200.
  • the communication system 1000 may also include the Internet 300.
  • the wireless access network 100 may include up to
  • the system may include at least one wireless access network device (such as 110a and 110b in FIG. 1 ), and may also include at least one terminal (such as 120a-120j in FIG. 1 ).
  • the terminal is connected to the wireless access network device by wireless means, and the wireless access network device is connected to the core network by wireless or wired means.
  • the core network device and the wireless access network device may be independent and different physical devices, or the functions of the core network device and the logical functions of the wireless access network device may be integrated on the same physical device, or the functions of some core network devices and some wireless access network devices may be integrated on one physical device. Terminals and wireless access network devices may be connected to each other by wire or wireless means.
  • FIG. 1 is only a schematic diagram, and the communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. 1 .
  • the wireless access network equipment can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), the next generation base station (next generation NodeB, gNB) in the fifth generation (5th generation, 5G) mobile communication system, the next generation base station in the sixth generation (6th generation, 6G) mobile communication system, a base station in a future mobile communication system or an access node in a WiFi system, etc.; it can also be a module or unit that completes part of the functions of a base station, for example, it can be a centralized unit (central unit, CU) or a distributed unit (distributed unit, DU).
  • the CU completes the functions of the radio resource control protocol and the packet data convergence layer protocol (PDCP) of the base station, and can also complete the function of the service data adaptation protocol (SDAP);
  • the DU completes the functions of the radio link control layer and the medium access control (MAC) layer of the base station, and can also complete the functions of part of the physical layer or all of the physical layer.
  • 3GPP 3rd Generation Partnership Project
  • the wireless access network device can be a macro base station (such as 110a in Figure 1), a micro base station or an indoor station (such as 110b in Figure 1), or a relay node or a donor node.
  • the embodiments of the present application do not limit the specific technology and specific device form adopted by the wireless access network device.
  • the following description takes the base station as an example of the wireless access network device.
  • the terminal device may be a device that provides voice/data to the user, for example, a handheld device with wireless connection function, a vehicle-mounted device, etc.
  • the terminal device may include user equipment, sometimes also referred to as a terminal, access station, UE station, remote station, wireless communication device, or user device, etc.
  • the terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a whole vehicle, a wireless communication module in a whole vehicle, a telematics box (T-Box), a road side unit (RSU), a wireless terminal in unmanned driving, a wireless terminal device in the Internet of Things (IoT), a wireless terminal device in telemedicine, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc., and the embodiments of the present application are not limited to this.
  • IoT Internet of Things
  • the terminal device may also be a wearable device.
  • Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also can achieve powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include devices that are fully functional, large in size, and can achieve full or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for measuring vital signs.
  • the terminal device can also be a V2X device, such as a smart car (or intelligent car), a digital car, an unmanned car (or driverless car or pilotless car or automobile), a self-driving car (or autonomous car), a pure electric vehicle (or battery EV), a hybrid electric vehicle (HEV), a range extended EV (REEV), a plug-in hybrid electric vehicle (PHEV), a new energy vehicle (new energy vehicle), or a roadside unit (RSU).
  • the terminal device can also be a device in device to device (D2D) communication, such as an electric meter or a water meter.
  • the terminal device can also be a terminal device in an IoT system.
  • IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network that interconnects people and machines and things.
  • the various terminal devices introduced above if located on a vehicle (e.g., placed in a vehicle or installed in a vehicle), can all be considered as vehicle-mounted terminal devices, which are also called on-board units (OBU).
  • the terminal device of the present application can also be an on-board module, on-board module, on-board component, on-board chip or on-board unit built into the vehicle as one or more components or units, and the vehicle can implement the method of the present application through the built-in on-board module, on-board module, on-board component, on-board chip or on-board unit.
  • Base stations and terminals can be fixed or movable. Base stations and terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on airplanes, balloons, and artificial satellites. The embodiments of this application do not limit the application scenarios of base stations and terminals.
  • the helicopter or drone 120i in FIG. 1 can be configured as a mobile base station.
  • the terminal 120j that accesses the wireless access network 100 through 120i
  • the terminal 120i is a base station; but for the base station 110a, 120i is a terminal, that is, 110a and 120i communicate through the wireless air interface protocol.
  • 110a and 120i can also communicate through the interface protocol between base stations.
  • relative to 110a, 120i is also a base station. Therefore, base stations and terminals can be collectively referred to as communication devices.
  • 110a and 110b in FIG. 1 can be referred to as communication devices with base station functions
  • 120a-120j in FIG. 1 can be referred to as communication devices with terminal functions.
  • Base stations and terminals, base stations and base stations, and terminals and terminals can communicate through authorized spectrum, unauthorized spectrum, or both; they can communicate through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz.
  • GHz gigahertz
  • the embodiments of the present application do not limit the spectrum resources used for wireless communication.
  • the functions of the base station may also be performed by a module (such as a chip) in the base station, or by a control subsystem including the base station function.
  • the control subsystem including the base station function here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, and smart city.
  • the functions of the terminal may also be performed by a module (such as a chip or a modem) in the terminal, or by a device including the terminal function.
  • Wireless communication between communication devices may include: wireless communication between network devices and terminals, wireless communication between network devices and network devices, and wireless communication between terminal devices and terminal devices.
  • wireless communication can also be referred to as “communication”
  • communication can also be described as "data transmission”, “information transmission” or “transmission”.
  • the physical sidelink shared channel Physical Sidelink Shared Channel
  • PSSCH Physical Sidelink Shared Channel
  • PSCCH physical sidelink control channel
  • the communication devices in the present application can be divided into a first type of device and a second type of device.
  • the first type of device is, for example, a low-complexity UE (reduced capability UE, RedCap UE), and the second type of device can be a Regular UE (or normal UE, non-RedCap UE, etc.), such as an enhanced mobile broadband (enhanced mobile broadbande, eMBB) UE.
  • eMBB enhanced mobile broadband
  • the first type of device and the second type of device have different characteristics, which include one or more of the following:
  • Bandwidth number of supported or configured resources, number of transmit antenna ports and/or number of receive antenna ports, number of RF channels, number of hybrid automatic repeat request (HARQ) processes, supported peak rate, application scenarios, latency requirements, processing capabilities, protocol version, duplex mode, services, etc.
  • HARQ hybrid automatic repeat request
  • the bandwidth of the first type of device is different from that of the second type of device, for example: the bandwidth of the first type of device may be 20MHz, 10MHz, or 5MHz, and the bandwidth of the second type of device may be 100MHz. It is understood that with the development of communication technology, the maximum bandwidth supported by the first type of device may no longer be 20MHz, 10MHz, or 5MHz, but may evolve into a wider or narrower bandwidth such as 3MHz, 25MHz, or 50MHz.
  • the number of resources supported or configured may be resource blocks (RB), resource elements (RE), subcarriers, RB groups, resource element group bundles (REG bundles), control channel elements, subframes, radio frames, time slots, mini time slots and/or symbol numbers.
  • the number of resources supported or configured by the first type of device and the second type of device is different. For example, the number of resources supported by the first type of device is 48 RBs, and the number of resources supported by the second type of device is 96 RBs.
  • the number of transmitting antenna ports and/or the number of receiving antenna ports is different from that of the second type of device.
  • the number of transmitting antenna ports of the first type of device may be 1, and the number of receiving antenna ports may be 2.
  • the number of transmit antenna ports of the second type of device may be 2, and the number of receive antenna ports may be 4.
  • the number of RF channels that is, the number of RF channels of the first type of device is different from that of the second type of device.
  • the number of RF channels of the first type of device may be 1, and the number of RF channels of the second type of device may be 2.
  • the number of HARQ processes that is, the number of HARQ processes supported by the first type of device is different from that of the second type of device, for example:
  • the number of HARQ processes of the device may be 8, and the number of HARQ processes of the second type of device may be 16.
  • the supported peak rates that is, the maximum peak rates of the first type of device and the second type of device are different.
  • the maximum peak rate supported by the first type of device may be 100 Mbps
  • the peak rate supported by the second type of device may be 200 Mbps.
  • the first type of devices and the second type of devices serve different application scenarios.
  • the first type of devices are used in industrial wireless sensors, video surveillance, wearable devices, etc.
  • the second type of devices are used in mobile communications, video surfing, etc.
  • Delay requirements that is, the first type of device and the second type of device have different requirements for transmission delay.
  • the delay requirement of the first type of device may be 500 milliseconds
  • the delay requirement of the second type of device may be 100 milliseconds.
  • Processing capability that is, the first type of device and the second type of device have different processing timing and processing speed for channels or data under different subcarrier space (SCS) conditions.
  • the first type of device does not support complex operations, which may include artificial intelligence (AI) and VR rendering, while the second type of device supports complex operations.
  • AI artificial intelligence
  • VR rendering while the second type of device supports complex operations.
  • the first type of device has lower processing capability than the second type of device.
  • Protocol version that is, the first type of device and the second type of device are terminal devices of different protocol versions.
  • the first type of device supports Release 17 and later protocol versions
  • the second type of device supports earlier protocol versions than Release 17, such as Release 15 or Release 16.
  • the duplex mode includes half-duplex and full-duplex, for example: the first type of equipment works in half-duplex mode, and the second type of equipment works in full-duplex mode.
  • Services include but are not limited to Internet of Things applications, such as video surveillance, mobile broadband (MBB), etc.
  • the service supported by the first type of device is video surveillance
  • the service supported by the second type of device is mobile broadband MBB. This embodiment of the application does not limit this.
  • the first device in this application may be an example of a first type of device or a second type of device
  • the second device may be an example of a first type of device or a second type of device.
  • the first device in this application is a terminal device, or a component applied to the terminal device (such as a processor, a chip, or a chip system, etc.), or a logic module or software that can realize all or part of the functions of the terminal device.
  • the second device in this application is a terminal device, or a component applied to the terminal device (such as a processor, a chip, or a chip system, etc.), or a logic module or software that can realize all or part of the functions of the terminal device.
  • the type of the above device may also be referred to as the type of receiving device.
  • the first type of device may also be referred to as a first type receiving device or a first type receiving device, etc.
  • the name of the second type receiving device is similar to this and will not be repeated.
  • sidelink (SL) communications can support direct communication between user equipment (UE), that is, user data is transmitted directly between UEs, avoiding the need for user data to be transferred through the network in cellular communications, thereby reducing transmission latency.
  • UE user equipment
  • UEs In SL communication, there may be different types of UEs as mentioned above.
  • mobile phones and other terminal devices have relatively strong capabilities, while wearable devices such as watches and headphones are sensitive to cost and power consumption.
  • These terminal devices have relatively weak capabilities, namely RedCap UE.
  • UEs with relatively strong capabilities can be called Regular UEs, normal UEs, or non-RedCap UEs.
  • Regular UE The maximum bandwidth supported by RedCap UE is generally smaller than the maximum bandwidth supported by Regular UE.
  • SL control information (sidelink control information, SCI) can be divided into first-order SCI (SCI1) and second-order SCI (SCI2).
  • SCI1 first-order SCI
  • SCI2 second-order SCI
  • the sending UE can carry "frequency resource allocation" indication information in SCI1.
  • the number of bits of this field is related to the resource pool bandwidth size.
  • the RedCap UE and the Regular UE determine the number of bits of this field according to the bandwidth of their respective resource pools, the physical sidelink control channel (PSCCH) formats of the RedCap UE and the Regular UE will be different, which may cause different types of UEs to be unable to correctly decode each other's PSCCH, or different types of UEs need to blindly detect different PSCCH formats.
  • the RedCap UE and the Regular UE can use the same number of SCI1 bits, for example, the RedCap UE determines the number of bits of the "frequency resource allocation" indication information according to the bandwidth of the Regular UE resource pool.
  • the structure of the resource pool can be divided into a structure based on continuous resource blocks (RBs) and a structure based on interlaced RBs.
  • the resource pool in the structure based on continuous RBs, includes one or more subchannels, each of which includes one or more continuous physical resource blocks (PRBs);
  • the resource pool in the structure based on interlaced RBs, includes one or more RB sets (RB sets), each of which includes one or more subchannels, each of which includes one or more continuous physical resource blocks (PRBs).
  • a subchannel is composed of one or more interlaces, and an interlace includes multiple non-contiguous PRBs.
  • the sending UE carries the "frequency resource allocation" indication information in SCI1, and the number of bits of this field is related to the size of the resource pool bandwidth.
  • the frequency resource indicator value can be used to indicate the starting subchannel index and the number of subchannels of one or more time slot reserved resources.
  • the number of bits and value of the FRIV field are determined according to the following rules:
  • L subCH is the number of consecutive subchannels corresponding to each reserved resource, is the starting subchannel index of the second reserved resource, is the starting subchannel index of the third reserved resource, is the number of sub-channels included in the resource pool.
  • the result is the smallest integer greater than or equal to Y.
  • FRIV can be used to indicate the starting RB set index and the number of RB sets of one or more time slot reserved resources.
  • the specific indication method can refer to the above sub-channel indication method. Replaced with the number of RB sets included in the resource pool.
  • the number of bits of SCI1 is related to the size of the resource pool bandwidth.
  • the transmitting UE sends data through the physical sidelink shared channel (PSSCH) and carries control information for decoding the data in the PSSCH in the SCI.
  • SCI can be sent through PSCCH, or SCI can be divided into first-order SCI (SCI1) and second-order SCI (SCI2), where SCI1 is sent through PSCCH and SCI2 is sent through PSSCH.
  • SCI1 carries information related to resource indication
  • SCI2 carries source identification (identity, ID) and destination ID.
  • the receiving UE first detects PSCCH, determines the resource location of PSSCH according to the indication information in SCI1, and then decodes (also called detects) SCI2 in PSSCH, and determines whether the data in PSSCH needs to be decoded according to the ID information indicated in SCI2.
  • RedCap UE and Regular UE use the same PSCCH format, RedCap UE needs to decode SCI2 even if the transmitting UE sends data to Regular UE; or Regular UE needs to decode SCI2 even if the transmitting UE sends data to RedCap UE. This results in unnecessary power consumption for PSSCH channel estimation and SCI2 decoding.
  • (pre) configuration can be understood as configuration or pre-configuration.
  • configuration refers to configuration by network equipment, such as network equipment configuring resource pool information.
  • Pre-configuration means that the communication system is pre-defined (such as the communication system pre-defines resource pool information), or the communication protocol is pre-defined (such as the communication protocol pre-defines resource pool information), or the terminal device is pre-configured when leaving the factory (such as the terminal device pre-configures resource pool information when leaving the factory), or configured by high-level signaling of the terminal device (such as radio resource control (RRC) signaling).
  • RRC radio resource control
  • the present application proposes a communication method, which indicates the type of the receiving end (or receiving device) so that the receiving end can determine whether to decode, thereby avoiding unnecessary PSSCH channel estimation and SCI2 decoding, thereby reducing the power consumption of the receiving end.
  • the method may include the following steps:
  • the second device sends first side control information to the first device, and correspondingly, the first device receives the first side control information.
  • the first sideline control information is used to schedule the first sideline signal.
  • the scheduling of the first sideline signal can be understood as scheduling the time-frequency resources of the first sideline signal, or indicating the time-frequency resources of the first sideline signal, or indicating information required for detecting or decoding the first sideline signal (such as coding modulation mode, reference signal type, etc.).
  • the first sidelink control information is first-order sidelink control information SCI1.
  • the first sidelink control information is carried on a physical sidelink control channel PSCCH.
  • the PSCCH is associated with PSSCH, and the PSSCH carries a first side signal, for example, the first side signal is SCI2 and/or data.
  • the so-called PSCCH is associated with PSSCH, which can be understood as PSCCH (or control information carried by PSCCH) carrying information for receiving, detecting or decoding PSSCH (or signal carried by PSSCH), such as time-frequency resource information, coding modulation method, etc.
  • PSCCH schedules the PSSCH.
  • the number of bits of control information carried by PSCCH sent by the first type of device is the same as the number of bits of control information carried by PSCCH sent by the second type of device.
  • indication information A is taken as an example of the first indication information
  • signal S is taken as an example of the first side signal.
  • the first sideline control information includes indication information A.
  • the indication information A can have the following two indication modes:
  • the indication information A indicates the type of receiving device corresponding to the signal S.
  • the type of the receiving device corresponding to the signal S is the first type or the second type.
  • the first type of device can refer to the description of the first type of device above
  • the second type of device can refer to the description of the second type of device above.
  • the bandwidth supported by the first type of device is smaller than the bandwidth supported by the second type of device. No further details are given here.
  • time-frequency resource set of the first type of device can be understood as the time-frequency resource set used by the device to send and/or receive information, for example, it can be an SL resource pool, RB set, partial bandwidth (bandwidth part, BWP), or carrier, etc.
  • a first type of device is configured with a first time-frequency resource set (it can also be understood that the (pre) configuration information of the first type of device includes information about the first time-frequency resource set), and a second type of device is configured with a second time-frequency resource set (it can also be understood that the (pre) configuration information of the second type of device includes information about the second time-frequency resource set).
  • being configured can also be understood as being (pre) configured.
  • a first type of device sends and/or receives information on time-frequency resource set A (for example, resource pool A)
  • a second type of device sends and/or receives information on time-frequency resource set B (for example, resource pool B).
  • time-frequency resource set A and time-frequency resource set B which can be: the time domain resources of time-frequency resource set A overlap with the time domain resources of time-frequency resource set B, or the frequency domain resources of time-frequency resource set A overlap with the frequency domain resources of time-frequency resource set B, or the time-frequency resource set A overlaps with the time-frequency resource set B in both the time domain and the frequency domain.
  • the first type of device and the second type of device are configured with a first time-frequency resource set (it can also be understood that the (pre) configuration information of the first type of device and the second type of device includes information of the first time-frequency resource set), and some resources in the first time-frequency resource set can be used by the first type of device. That is, the time-frequency resource set corresponding to the first type of device is a subset of the time-frequency resource set corresponding to the second type of device.
  • the first time-frequency resource set is resource pool C, and resource pool C includes RB set0, RB set1, RB set2, and RB set3, a total of 4 RB sets.
  • the first type of device can send and/or receive information on RB set0, and the first type of device can send and/or receive information on RB set0, RB set1, RB set2, and RB set3.
  • time-frequency resource set of the first type of device and the time-frequency resource set of the second type of device here is also applicable to the following, such as mode 2. It will not be repeated below.
  • the receiving device corresponding to the signal S can be understood as the destination end of the signal S, or the destination device of the signal S.
  • the first device may be the receiving device corresponding to the signal S, or may not be.
  • the signal S comes from the second device.
  • the signal S may be a second-order SCI, data, a reference signal, or feedback information, etc.
  • the reference signal may be a channel state information reference signal (CSI-RS), a positioning reference signal (PRS), a demodulation reference signal (DMRS), etc.
  • the feedback information may be HARQ feedback, channel state information (CSI) feedback, etc.
  • the signal S is carried on a PSSCH.
  • the second device sends a PSSCH including the signal S to the first device.
  • the indication information A is carried (or referred to as including, bearing, etc.) in the control information associated with the signal S (such as SCI1).
  • the control information associated with the signal S can be understood as the control information scheduling the signal S or the data channel carrying S, or the control information indicating the time-frequency resources of the signal S, or the control information includes information indicating the time-frequency resources corresponding to the signal S, or the control information includes information used to detect or decode the signal S.
  • the control information associated with the signal S may be SCI1, that is, the indication information A is carried in SCI1.
  • control information is carried in the control channel.
  • SCI1 is carried in the PSCCH.
  • SCI1 is carried in PSCCH#A
  • PSCCH#A is associated with PSSCH#A
  • signal S is carried in the PSSCH#A.
  • the receiving device corresponding to the signal S may include one or more devices, and the indication information A may be used to indicate the type of the one or more devices.
  • the indication information A may indicate the type of one or more devices through one field, or may indicate the type of one or more devices through multiple fields. The following is divided into Example 1 and Example 2 for explanation.
  • Example 1 indication information A includes a first field, where the first field is used to indicate the type of one or more devices.
  • the indication information A indicates that one or more devices are devices of the first type
  • the indication information A indicates that the one or more devices are devices of the second type
  • the indication information A indicates that the one or more devices are devices of the first type; when the first field value is value B, the indication information A indicates that at least one of the one or more devices is a device of the second type; or
  • the indication information A indicates that at least one of the one or more devices belongs to the first type of device; when the first field value is value B, the indication information A indicates that the one or more devices all belong to the second type of device; or,
  • the indication information A indicates that one or more devices are devices of the first type; when the value of the first field is B, the indication information A indicates that one or more devices are devices of the second type; when the value of the first field is C, the indication information A indicates that one or more devices include devices of the first type and devices of the second type.
  • the first device is called a receiving UE
  • the second device is a sending UE.
  • Case 1 The UEs participating in the communication include first type devices and/or second type devices, and the sending UE indicates the type of the receiving UE with 1 bit in SCI1, that is, the first field occupies 1 bit, for example, the first field occupies 1 reserved bit in SCI1.
  • the correspondence between the value of the bit and the meaning represented by the value can be predefined or preconfigured, such as stored in the first device and the second device in the form of a table.
  • the correspondence can also be configured, such as the first device sends to the second device, or the second device sends to the first device.
  • a sending UE and a receiving UE communicate one-to-one.
  • the transmitting UE may indicate "0" in SCI1
  • the receiving UE is a Regular UE (i.e., a device of the second type)
  • the transmitting UE may indicate "0" in SCI1
  • the receiving UE is a RedCap UE (i.e., a device of the first type)
  • the transmitting UE may indicate "1" in SCI1.
  • the transmitting UE may indicate "1" in SCI1
  • the receiving UE is a RedCap UE
  • the transmitting UE may indicate "0" in SCI1.
  • a sending UE and a receiving UE perform one-to-many communication.
  • "0" indicates that all receiving UEs are Regular UEs
  • "1" indicates that all receiving UEs are RedCap UEs.
  • "0" indicates that all receiving UEs are Regular UEs, and "1" indicates that at least one receiving UE is a RedCap UE.
  • "0" indicates that at least one receiving UE is a Regular UE, and "1" indicates that all receiving UEs are RedCap UEs.
  • "0" indicates that at least one receiving UE is a Regular UE, and "1" indicates that at least one UE is a RedCap UE.
  • the transmitting UE can send two PSSCHs, indicating "0" and "1" in the corresponding SCI1 respectively. "0” indicates that the receiving UE is a Regular UE, and “1” indicates that the receiving UE is a RedCap UE, or "0” indicates that the receiving UE is a RedCap UE, and "1” indicates that the receiving UE is a Regular UE.
  • Case 2 The UEs participating in the communication include first type devices and/or second type devices, and the sending UE indicates the type of the receiving UE with 2 bits in SCI1, that is, the first field occupies 2 bits, for example, the first field occupies 2 reserved bits in SCI1.
  • Example 2 Indication information A includes a first field and a second field.
  • the first field is used to indicate whether the device sending the first side control information supports the function of "indicating device type (or indicating receiving device type)", or the first field is used to indicate whether the device sending the first side control information indicates the type of receiving device.
  • the first field when the first field takes a first value, it indicates that the device supports the function of "indicating device type”. When the first field takes a second value, it indicates that the device does not support the function of "indicating device type”.
  • the first field indicates whether the second field is used to indicate the type of the receiving device. For example, when the first field takes the first value, the second field is used to indicate the type of the receiving device; when the first field takes the second value, the second field is not used to indicate the type of the receiving device, or the second field is invalid, or the second field has no special meaning.
  • the second field is used to indicate the type of one or more devices.
  • value A, value B, first value, second value, third value, fourth value, fifth value, etc. in the present application may be predefined or configured.
  • the corresponding field occupies 1 bit, and the value corresponding to the field may be 0 or 1, and the corresponding field occupies 2 bits, and the value corresponding to the field may be 00, 01, 10, 11.
  • Other numerical values that can distinguish the meaning of the field indication can also be applied to the present application and should be within the protection scope of the present application.
  • the transmitting UE indicates the type of the receiving UE using 2 reserved bits in SCI1.
  • the indication information A occupies 2 bits, wherein the 2 bits include a first bit and a second bit, the first bit is used to indicate whether the second bit is used to indicate the type of the receiving device, and the second bit can be used to indicate the type of the receiving device.
  • the first bit value is 0, indicating that the second bit is not used to indicate the type of the receiving device, and the first bit value is 1, indicating that the second bit is used to indicate the type of the receiving device.
  • the second bit value is 0, indicating that the type of the receiving device is the first type, and the second bit value is 1, indicating that the type of the receiving device is the second type.
  • the sending UE indicates "00"
  • the second bit has no meaning of indicating the type of the receiving UE.
  • the second bit contains the meaning of indicating the type of the receiving UE. For example, the second bit is 0, indicating that the type of the receiving UE is Regular UE, and the second bit is 1, indicating that the type of the receiving UE is RedCap UE.
  • a sending UE and a receiving UE perform one-to-one communication, and the sending UE may indicate the type of the receiving UE to the receiving UE.
  • the sending UE may also indicate to the target receiving UE whether the sending UE supports "indicating the type of receiving device", or indicate to the target receiving UE whether the sending UE carries the indication information for indicating the type of receiving device in the first side control information (e.g., SCI1), or indicate to the target receiving UE the protocol version supported by the sending UE (the receiving UE may determine whether the UE of the protocol version supports "indicating the type of receiving device” according to the protocol version).
  • the target receiving UE may be understood as the target receiving UE of the signal S, that is, the signal S is sent to the target receiving UE.
  • the sending UE may indicate to the target receiving UE whether the sending UE supports "indicating the type of the receiving device" (for example, carried in the capability information); or, when the sending UE supports "indicating the type of the receiving device", the sending UE may indicate to the target receiving UE that the sending UE supports "indicating the type of the receiving device" (for example, carried in the capability information).
  • the sending UE If the sending UE does not support "indicating the type of the receiving device", the sending UE sets the first field to the second value (for example, the second value is "0"); if the sending UE supports "indicating the type of the receiving device", the sending UE sets the first field to the first value (for example, the first value is "1").
  • “10” means that the receiving UE is a Regular UE
  • “11” means that the receiving UE is a RedCap UE.
  • a sending UE and a receiving UE perform one-to-many communication, and the sending UE may indicate the type of the one or more receiving UEs.
  • the sending UE may indicate to the target receiving UE whether the sending UE supports "indicating the type of the receiving device" (for example, carried in a discovery message); or, when the sending UE supports "indicating the type of the receiving device", the sending UE may indicate to the target receiving UE that the sending UE supports "indicating the type of the receiving device" (for example, carried in capability information).
  • the sending UE If the sending UE does not support "indicating the type of the receiving device", the sending UE sets the first field to the second value (for example, the second value is "0"); if the sending UE supports "indicating the type of the receiving device", the sending UE sets the first field to the first value (for example, the first value is "1").
  • the second field indicates that the one or more devices are devices of the first type; when the value of the second field is the fourth value, the second field indicates that the one or more devices are devices of the second type;
  • the second field indicates that the one or more devices are devices of the first type; when the value of the second field is the fourth value, the second field indicates that at least one of the one or more devices is a device of the second type;
  • the second field indicates that at least one of the one or more devices belongs to the first type of device; when the value of the second field is the fourth value, the second field indicates that the one or more devices all belong to the second type of device.
  • the second field indication method is described below with examples.
  • "10” indicates that all receiving UEs are Regular UEs and "11” indicates that all receiving UEs are RedCap UEs, or, "11” indicates that all receiving UEs are Regular UEs and “10” indicates that all receiving UEs are RedCap UEs.
  • the transmitting UE can send two PSSCHs, indicating "10" and "11” in the corresponding SCI1. For example, "10” indicates that the receiving UE is a Regular UE, and "11” indicates that the receiving UE is a RedCap UE.
  • "10” indicates that all receiving UEs are Regular UEs, and "11” indicates that at least one receiving UE is a RedCap UE, or "11” indicates that all receiving UEs are Regular UEs, and "10” indicates that at least one receiving UE is a RedCap UE.
  • "10” indicates that at least one receiving UE is a Regular UE, and "11” indicates that all receiving UEs are RedCap UEs, or, "11” indicates that at least one receiving UE is a Regular UE, and “10” indicates that all receiving UEs are RedCap UEs.
  • the sending UE may also use 3 reserved bits in SCI1 to indicate the type of the receiving UE.
  • the first field occupies 1 bit and the second field occupies 2 bits.
  • the second field indicates the type of the receiving device in the following manner:
  • the second field value When the second field value is the third value, the second field indicates that one or more devices are devices of the first type; when the second field value is the fourth value, the second field indicates that one or more devices are devices of the second type; when the second field value is the fifth value, the second field indicates that one or more devices include devices of the first type and devices of the second type.
  • “100” means that all receiving UEs are Regular UEs
  • “101” means that all receiving UEs are RedCap UEs
  • “110” means that there are both Regular UEs and RedCap UEs among the receiving UEs.
  • Mode 2 the indication information A indicates whether the first side control information includes the identification information corresponding to the signal S.
  • the indication information A is a field reserved in the first sideline control information (such as SCI1), and the value of the field indicates whether the first sideline control information includes the identification information corresponding to the signal S. For example, if the value of the field is 0, it indicates that the first sideline control information does not include the identification information corresponding to the signal S, and if the value of the field is 1, it indicates that the first sideline control information includes the identification information corresponding to the signal S. It should be understood that the correspondence between the value of the field and the meaning represented by the value can be predefined (configured) or configured.
  • the first device can detect or decode the first side control information according to the number of bits of the first side control information.
  • the number of bits of the first side control information is 30, and the value of each bit is 0 or 1.
  • the last bit of the 30 bits is the indication information A, and the first 10 bits of the 30 bits are the frequency resource indication information, or the first 5 bits are the frequency resource indication information and the 6th to 10th bits are the identification information; when the last bit is 0, the first device believes that the first side control information does not include the identification information, and the frequency domain resource position is determined according to the 1st to 10th bits; when the last bit is 1, the first device believes that the first side control information includes the identification information, and the frequency domain resource position is determined according to the 1st to 5th bits, and the identification information is determined according to the 5th to 10th bits.
  • the identification information corresponding to the signal S can be understood as the identification of the data sending device and/or the identification of the data receiving device.
  • the identification information corresponding to the signal S can be understood as the identification corresponding to the data, such as a service identification.
  • the identification information can be a physical layer source ID (or layer 1 source ID), a physical layer destination ID (or layer 1 destination ID), a medium access control (MAC) layer source ID (or layer 2 source ID), or a MAC layer destination ID (or layer 2 destination ID), etc.
  • the sending device corresponding to the signal S belongs to the first type of device (i.e., RedCap UE), and/or at least one of the receiving devices corresponding to the signal S belongs to the first type of device (i.e., RedCap UE).
  • the identification information corresponding to the signal S can be indicated by the FRIV field (or referred to as the frequency resource allocation indication field, which can also be understood as the frequency resource allocation indication field when the identification information is not included in SCI1).
  • a bit can be reserved in SCI1 to indicate the type of the FRIV field.
  • the second device uses 1 bit in SCI1 to indicate the type of the FRIV field (i.e., the indication information A includes this 1 bit). For example, “0" indicates that the FRIV field is entirely used to indicate frequency domain resource location information, and "1" indicates that part of the bits of the FRIV field can be used to indicate ID information (i.e., identification information corresponding to the signal S).
  • the indication information A indicates that the first side control information includes the identification information corresponding to the signal S.
  • the number of bits of the identification information corresponding to the signal S may be determined according to the bandwidth size of the time-frequency resource set of the first type of device and the bandwidth size of the time-frequency resource set of the second type of device.
  • the number of bits B of the identification information corresponding to the signal S satisfies the following relationship:
  • M is the number of frequency domain units included in the time-frequency resources of the second type of device
  • N is the number of frequency domain units included in the time-frequency resources of the first type of device
  • N is a positive integer
  • M is a positive integer greater than N.
  • the frequency domain unit can be an RB set, a subchannel, a subband, an RB, etc.
  • the number of bits of the identification information corresponding to the signal S is determined according to the following method:
  • the number of bits available for the FRIV field is: (up to 2 resources can be reserved); or, (A maximum of 3 resources can be reserved).
  • the number of bits actually required for frequency domain resource indication is: (up to 2 resources can be reserved); or, (up to 3 resources are reserved);
  • the number of bits available for ID information indication is: (up to 2 resources can be reserved); or, (A maximum of 3 resources can be reserved).
  • the number of bits of the frequency resource allocation indication field is B1; when the first side control information includes identification information, the number of bits of the frequency resource allocation indication field is B2, and the number of bits of the identification information is B1-B2, for example, the first B2 bits of B1 bits are used to indicate the frequency domain resource position, and the last B1-B2 bits of B1 bits are used to indicate the identification information.
  • the identification information corresponding to signal S includes at least one of the following: all or part of the bits of the source identification corresponding to signal S, all or part of the bits of the destination identification corresponding to signal S, all or part of the bits of the sending device identification corresponding to signal S, and all or part of the bits of the receiving device identification corresponding to signal S.
  • the remaining bits can be carried in the second control information (SCI2) associated with the signal S and/or the MAC header.
  • identifier can also be replaced by "address”, for example, it can be layer 1 identifier (layer1 ID, or physical layer identifier), layer 2 identifier (layer2 ID, or MAC layer identifier), RRC layer identifier, application layer identifier, device entity identifier, etc.
  • address for example, it can be layer 1 identifier (layer1 ID, or physical layer identifier), layer 2 identifier (layer2 ID, or MAC layer identifier), RRC layer identifier, application layer identifier, device entity identifier, etc.
  • Table 1 shows the relationship between the number of bits used to indicate identification information (ID), the subcarrier spacing, and the number of PRBs.
  • the number of bits in SCI1 that can be used to indicate ID information is 4 to 8.
  • the first side control information e.g., SCI1
  • the complete source ID i.e., the source ID of the signal, or the ID of the sending end of the signal
  • the destination ID i.e., the destination ID of the signal, or the ID of the receiving end of the signal
  • the remaining bits are carried in the media access control (MAC) header.
  • the first sideline control information (eg, SCI1) includes identification information:
  • the 8-bit source ID and/or 4 to 8 bits of the 16-bit destination ID in SCI2 may be carried in SCI1, and the number of bits carried in SCI2 may remain unchanged or only the remaining bits not carried in SCI1 may be carried.
  • 4 to 8 bits of the 16-bit source ID and/or the 8-bit destination ID in the MAC header may be carried in SCI1.
  • any 4 to 8 bits of the complete 24-bit source ID and/or the 24-bit destination ID may be carried in SCI1.
  • M@100MHz represents the number of sub-channels included in a resource pool with a bandwidth size of 100 MHz
  • N@20MHz represents the number of sub-channels included in a resource pool with a bandwidth size of 20 MHz.
  • the first device determines whether to detect the first sidewalk signal according to the first indication information.
  • the first device determines whether to detect (also called decode) the shared channel, such as whether to decode the PSSCH in 310, according to the first indication information.
  • the first indication information takes indication information A as an example
  • the first side signal takes signal S as an example.
  • the first device determines whether to detect the signal S according to the indication information A (or the value of the first field), specifically as follows:
  • the indication information A indicates that one or more devices are devices of the first type; when the value of the first field is value B, the indication information A indicates that one or more devices are devices of the second type.
  • the first device determines whether to detect the signal S according to the indication information A, including:
  • the first device When the first device is a device of the first type, if the value of the first field is value A, the first device determines to detect the signal S; if the value of the first field is value B, the first device determines not to detect the signal S.
  • the first device When the first device is a device of the second type, if the value of the first field is value A, the first device determines not to detect the signal S, and if the value of the first field is value B, the first device determines to detect the signal S;
  • the indication information A indicates that the one or more devices are devices of the first type; when the value of the first field is value B, the indication information A indicates that at least one of the one or more devices is a device of the second type.
  • the first device determines whether to detect the signal S according to the indication information A, including:
  • the first device determines the detection signal S
  • the first device When the first device is a device of the second type, if the value of the first field is value A, the first device determines not to detect the signal S, and if the value of the first field is value B, the first device determines to detect the signal S;
  • the indication information A indicates that at least one of the one or more devices belongs to the first type of device; when the value of the first field is value B, the indication information A indicates that the one or more devices all belong to the second type of device.
  • the first device determines whether to detect the signal S according to the indication information A, including:
  • the first device When the first device is a device of the first type, if the value of the first field is value A, the first device determines to detect the signal S; if the value of the first field is value B, the first device determines not to detect the signal S.
  • the first device determines the detection signal S
  • the indication information A indicates that one or more devices are devices of the first type; when the value of the first field is value B, the indication information A indicates that one or more devices are devices of the second type; when the value of the first field is value C, the indication information A indicates that one or more devices include devices of the first type and devices of the second type.
  • the first device determines whether to detect the signal S according to the indication information A, including:
  • the first device When the first device is a device of the first type, if the value of the first field is value A or value C, the first device determines to detect the signal S; if the value of the first field is value B, the first device determines not to detect the signal S.
  • the first device When the first device is a device of the second type, if the value of the first field is value A, the first device determines not to detect signal S; if the value of the first field is value B or value C, the first device determines to detect signal S.
  • the transmitting UE In unicast communication, when the receiving UE is a Regular UE, the transmitting UE indicates "0" in SCI1, and when the receiving UE is a RedCap UE, the transmitting UE indicates "1" in SCI1.
  • the RedCap UE detects the signal S when it detects that the field indicates "1”
  • the Regular UE detects the signal S when it detects that the field indicates "0".
  • the sending UE and the receiving UE conduct one-to-many communication.
  • "0" indicates that all receiving UEs are Regular UEs
  • "1" indicates that all receiving UEs are RedCap UEs
  • the sending UE can send two PSSCHs, indicating "0" and "1" in the corresponding SCI1 respectively; the RedCap UE detects the signal S when it detects that the field indicates "1”, and the Regular UE detects the signal S when it detects that the field indicates "0".
  • "0" indicates that all receiving UEs are Regular UEs
  • "1" indicates that at least one receiving UE is a RedCap UE.
  • the RedCap UE detects signal S when detecting that the field indicates "1”
  • the Regular UE detects signal S when detecting that the field indicates "0" or "1".
  • "0" indicates that at least one receiving UE is a Regular UE
  • "1" indicates that all receiving UEs are RedCap UEs.
  • the RedCap UE detects the signal S when it detects that the field indicates "0" or "1”
  • the Regular UE detects the signal S when it detects that the field indicates The detection signal S shows "0".
  • "0" indicates that at least one receiving UE is a Regular UE
  • "1" indicates that at least one UE is a RedCap UE.
  • the RedCap UE detects the signal S when detecting that the field indicates "0” or "1”
  • the Regular UE detects the signal S when detecting that the field indicates "0" or "1”.
  • RedCap UEs detect signal S when detecting that the field indicates "01” or "10”
  • Regular UEs detect signal S when detecting that the field indicates "00” or "10”.
  • the sending UE if the sending UE does not support "indicating the type of the receiving device", the sending UE sets the first field to the second value (for example, the second value is "0"); if the sending UE supports "indicating the type of the receiving device", the sending UE sets the first field to the first value (for example, the first value is "1").
  • the receiving UE detects the signal S when it detects that the value of the first field is the second value, and determines whether to detect the signal S based on the value of the second field when it detects that the value of the first field is the first value.
  • the first bit value is 0 to indicate that the second bit is not used to indicate the type of the receiving device, and the first bit value is 1 to indicate that the second bit is used to indicate the type of the receiving device.
  • the first device determines to detect the signal S regardless of whether it is of the first type or the second type.
  • the target sending UE before receiving the indication information A, if the target sending UE indicates to the receiving UE that the target sending UE does not support "indicating the type of the receiving device", or if the target sending UE does not indicate to the receiving UE that the target sending UE supports "indicating the type of the receiving device", the receiving UE detects that the value of the first field is the second value and detects the signal S, and the receiving UE may not detect the signal S when it detects that the value of the first field is the first value; if the target sending UE indicates to the receiving UE that the target sending UE supports "indicating the type of the receiving device", the receiving UE determines whether to detect the signal S based on the value of the second field when it detects that the value of the first field is the first value, and the receiving UE may not detect the signal S when it detects that the value of the first field is the second value.
  • the target sending UE can be understood as a sending UE that has a communication requirement with the receiving UE, for example, a UE that has established a unicast connection with the receiving UE, or a UE that belongs to the same communication group as the receiving UE.
  • the first device determines whether to detect the signal S according to the value of the second field, as follows:
  • the second field when the value of the second field is the third value, the second field indicates that the one or more devices are devices of the first type, and when the value of the second field is the fourth value, the second field indicates that the one or more devices are devices of the second type.
  • the first device determines whether to detect the signal S according to the indication information A, including:
  • the first device When the first device is a first type of device, if the value of the second field is the third value, the first device determines to detect the signal S; if the value of the second field is the fourth value, the first device determines not to detect the signal S.
  • the first device When the first device is a device of the second type, if the value of the second field is the third value, the first device determines not to detect the signal S, and if the value of the second field is the fourth value, the first device determines to detect the signal S;
  • the second field when the value of the second field is the third value, the second field indicates that the one or more devices are devices of the first type, and when the value of the second field is the fourth value, the second field indicates that at least one of the one or more devices is a device of the second type.
  • the first device determines whether to detect the signal S according to the indication information A, including:
  • the first device determines the detection signal S
  • the first device When the first device is a device of the second type, if the value of the second field is the third value, the first device determines not to detect the signal S, and if the value of the second field is the fourth value, the first device determines to detect the signal S;
  • the second field when the value of the second field is the third value, the second field indicates that at least one of the one or more devices belongs to the first type of device, and when the value of the second field is the fourth value, the second field indicates that the one or more devices all belong to the second type of device.
  • the first device determines whether to detect the signal S according to the indication information A, including:
  • the first device When the first device is a first type of device, if the value of the second field is the third value, the first device determines to detect the signal S; if the value of the second field is the fourth value, the first device determines not to detect the signal S.
  • the first device determines the detection signal S
  • the second field when the value of the second field is the third value, the second field indicates that one or more devices are devices of the first type, when the value of the second field is the fourth value, the second field indicates that one or more devices are devices of the second type, and when the value of the second field is the fifth value, the second field indicates that one or more devices include devices of the first type and devices of the second type.
  • the first device determines whether to detect the signal S according to the indication information A, including:
  • the first device When the first device is a first type of device, if the value of the second field is the third value or the fifth value, the first device determines to detect the signal S; if the value of the second field is the fourth value, the first device determines not to detect the signal S.
  • the first device When the first device is a device of the second type, if the value of the second field is the third value, the first device determines not to detect the signal S; if the value of the second field is the fourth value or the fifth value, the first device determines to detect the signal S.
  • the following is an example of the method for the receiving UE to determine whether to detect the signal S in combination with different communication scenarios.
  • the sending UE and the receiving UE communicate one-to-one.
  • "10” indicates that the receiving UE is a Regular UE
  • "11” indicates that the receiving UE is a RedCap UE.
  • the RedCap UE detects signal S when it detects that the field indicates "11”
  • the Regular UE detects signal S when it detects that the field indicates "10”.
  • the sending UE and the receiving UE perform one-to-many communication.
  • "10" indicates that all receiving UEs are Regular UEs
  • "11” indicates that all receiving UEs are RedCap UEs
  • the sending UE can send two PSSCHs, indicating "10” and "11” in the corresponding SCI1 respectively.
  • the RedCap UE detects that the field indicates "11”, it detects signal S
  • the Regular UE detects that the field indicates "10”
  • "10” indicates that all receiving UEs are Regular UEs
  • "11” indicates that at least one receiving UE is a RedCap UE.
  • the RedCap UE detects that the field indicates "11”
  • the Regular UE detects signal S when it detects that the field indicates "10" or "11”.
  • "10” indicates that at least one receiving UE is a Regular UE
  • "11” indicates that all receiving UEs are RedCap UEs.
  • a RedCap UE detects signal S when it detects that the field indicates "10” or "11”
  • a Regular UE detects signal S when it detects that the field indicates "10”.
  • the transmitting UE uses 3 reserved bits in SCI1 to indicate the type of the receiving UE. "100” indicates that all receiving UEs are Regular UEs, "101” indicates that all receiving UEs are RedCap UEs, and "110” indicates that there are both Regular UEs and RedCap UEs among the receiving UEs.
  • the RedCap UE detects that the field indicates "101” or "110”, it detects the signal S
  • the Regular UE detects that the field indicates "100” or "110”
  • the detection method in broadcast communication is the same as that in multicast communication and will not be described in detail.
  • the above description is based on the example of the receiving UE (i.e., the first device) detecting the signal S. If the receiving UE detects an indication other than the above indication for determining to detect the signal S, it will not detect the signal S.
  • the sending UE and the receiving UE communicate one-to-one.
  • "10" indicates that the receiving UE is a Regular UE
  • "11" indicates that the receiving UE is a RedCap UE.
  • the RedCap UE detects that the field indicates "10”, it determines not to detect the signal S; when the Regular UE detects that the field indicates "11", it determines not to detect the signal S.
  • Other instructions are similar to this and will not be repeated.
  • the first device determines whether to detect the signal S according to the identification information corresponding to the signal S.
  • the first device determines to detect the signal S.
  • the receiving UE interprets the FRIV field according to 1 bit in the indication information A. If some bits of the FRIV field can be used to indicate ID information, the receiving UE determines whether the ID information indicated by SCI1 matches the ID of the sending device and/or receiving device corresponding to the signal S. If it is determined that there is no match, there is no need to detect the signal S. If there is a match, the first device needs to detect the signal S.
  • the ID information indicated by SCI1 includes the upper 5 bits (or the first 5 bits) of the 16 bits of the layer 1 destination ID. If the receiving UE determines that the 5 bits indicated in the SCI1 are the same as the upper 5 bits of the layer 1 destination ID corresponding to the receiving UE, it is determined to detect the signal S, otherwise the signal S is not detected.
  • the first device should also receive the first sideline signal.
  • the second device sends the first sideline signal to the first device, and correspondingly, the first device receives the first sideline signal.
  • the second device carries indication information in SCI1, which is used by the first device to determine whether to decode the data channel, thereby avoiding unnecessary PSSCH channel estimation and SCI2 decoding, thereby reducing the power consumption of the first device.
  • the first device in the present application can be a network device or a terminal device.
  • the second device can be a network device or a terminal device. It can be a terminal device.
  • the solutions of the present application can all be applied.
  • the methods provided by the embodiments of the present application are introduced from the perspective of interaction between various devices.
  • the network device or the terminal device may include a hardware structure and/or a software module, and the functions are realized in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether a function in the above functions is executed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.
  • each functional module in each embodiment of the present application may be integrated into a processor, or may exist physically separately, or two or more modules may be integrated into one module.
  • the above-mentioned integrated modules may be implemented in the form of hardware or in the form of software functional modules.
  • the embodiment of the present application further provides a device 400 for implementing the functions of the first device or the second device in the above method.
  • the device may be a software module or a chip system.
  • the chip system may be composed of a chip, or may include a chip and other discrete devices.
  • the device 400 may include: a processing unit 410 and a communication unit 420.
  • the communication unit may also be referred to as a transceiver unit, and may include a sending unit and/or a receiving unit, which are respectively used to execute the sending and receiving steps of the first device or the second device in the above method embodiment.
  • the communication unit may also be referred to as a transceiver, a transceiver, a transceiver device, etc.
  • the processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, etc.
  • the device used to implement the receiving function in the communication unit 420 may be regarded as a receiving unit, and the device used to implement the sending function in the communication unit 420 may be regarded as a sending unit, that is, the communication unit 420 includes a receiving unit and a sending unit.
  • the communication unit may also be sometimes referred to as a transceiver, a transceiver, or an interface circuit, etc.
  • the receiving unit may also be sometimes referred to as a receiver, a receiver, or a receiving circuit, etc.
  • the sending unit may also be sometimes referred to as a transmitter, a transmitter, or a transmitting circuit, etc.
  • the communication unit is used for sending and receiving information, such as receiving indication information A, receiving signal S, etc.
  • the processing unit is used to determine whether to detect the signal S according to the indication information A.
  • the processing unit is also used to detect the signal S.
  • a processing unit is used to determine indication information A, etc.
  • the communication unit is used to send and receive information, for example, to send indication information A, etc.
  • processing unit 410 and the communication unit 420 may also perform other functions.
  • processing unit 410 and the communication unit 420 may also perform other functions.
  • the first device and the second device described in the embodiment of the present application can be implemented by a general bus architecture.
  • Figure 5 is a schematic diagram of the structure of a communication device 500 provided in an embodiment of the present application, and the communication device 500 includes a processor 501 and a transceiver 502.
  • the communication device 500 can be a first terminal device, or a chip or chip system therein; or, the communication device 500 can be a second terminal device, or a chip or module therein; or, the communication device 500 can be a third terminal device, or a chip or module therein; or, the communication device 500 can be a fourth terminal device, or a chip or module therein; or, the communication device 500 can be a fifth terminal device, or a chip or module therein; or, the communication device 500 can be a sixth terminal device, or a chip or module therein.
  • Figure 5 only shows the main components of the communication device 500.
  • the communication device 500 can further include a memory 503, and an input and output device (not shown in the figure).
  • the processor 501 is mainly used to process the communication protocol and communication data, and to control the entire communication device, execute the software program, and process the data of the software program.
  • the memory 503 is mainly used to store the software program and data.
  • the transceiver 502 may include a radio frequency circuit and an antenna.
  • the radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals.
  • the antenna is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves.
  • the input and output devices such as a touch screen, a display screen, a keyboard, etc., are mainly used to receive data input by the user and output data to the user.
  • the processor 501, the transceiver 502, and the memory 503 may be connected via a communication bus.
  • the processor 501 can read the software program in the memory 503, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor 501 performs baseband processing on the data to be sent and outputs
  • the baseband signal is sent to the RF circuit, and the RF circuit performs RF processing on the baseband signal and then sends the RF signal outward in the form of electromagnetic waves through the antenna.
  • the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor 501, which converts the baseband signal into data and processes the data.
  • the RF circuit and antenna may be arranged independently of the processor performing baseband processing.
  • the RF circuit and antenna may be arranged remotely from the communication device.
  • the communication device 40 may take the form of a communication device 500 as shown in FIG. 5 .
  • the function/implementation process of the processing module 420 in FIG4 can be implemented by the processor 501 in the communication device 500 shown in FIG5 calling the computer execution instructions stored in the memory 503.
  • the function/implementation process of the transceiver module 410 in FIG4 can be implemented by the transceiver 502 in the communication device 500 shown in FIG5.
  • the first terminal device, the second terminal device, the third terminal device, the fourth terminal device, the fifth terminal device, or the sixth terminal device in the present application may adopt the composition structure shown in Figure 6, or include the components shown in Figure 6.
  • Figure 6 is a composition diagram of a communication device 600 provided in the present application.
  • the communication device 600 includes at least one processor 601.
  • the communication device also includes a communication interface 602.
  • the device 600 can implement the method provided by any of the aforementioned embodiments and any possible designs thereof.
  • the processor 601 is used to implement the method provided by any of the aforementioned embodiments and any possible designs thereof through a logic circuit or execution code instructions.
  • the communication interface 602 may be used to receive program instructions and transmit them to the processor, or the communication interface 602 may be used for the communication device 600 to communicate and interact with other communication devices, such as interactive control signaling and/or business data, etc. Exemplarily, the communication interface 602 may be used to receive signals from other devices outside the communication device 600 and transmit them to the processor 601, or to send signals from the processor 601 to other communication devices outside the communication device 600.
  • the communication interface 602 may be a code and/or data read/write interface circuit, or the communication interface 602 may be a signal transmission interface circuit between a communication processor and a transceiver, or may be a pin of a chip.
  • the communication device 600 may further include at least one memory 603, which may be used to store required program instructions and/or data involved. It should be noted that the memory 603 may exist independently of the processor 601, or may be integrated with the processor 601. The memory 603 may be located inside the communication device 600, or may be located outside the communication device 600, without limitation.
  • the communication device 600 may further include a power supply circuit 604, which may be used to supply power to the processor 601.
  • the power supply circuit 604 may be located in the same chip as the processor 601, or in another chip other than the chip where the processor 601 is located.
  • the communication device 600 may further include a bus 605 , and various parts of the communication device 600 may be interconnected via the bus 605 .
  • the communication device 40 shown in FIG. 4 may take the form of a communication device 600 shown in FIG. 6 .
  • the function/implementation process of the processing module 420 in FIG4 can be implemented by the processor 601 in the communication device 600 shown in FIG6 calling the computer execution instructions stored in the memory 603.
  • the function/implementation process of the transceiver module 410 in FIG4 can be implemented by the communication interface 602 in the communication device 600 shown in FIG6.
  • the structure shown in FIG6 does not constitute a specific limitation on the first device and the second device.
  • the first device and the second terminal device may include more or fewer components than shown in the figure, or combine certain components, or split certain components, or arrange the components differently.
  • the components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.
  • the terminal device chip When the above communication device is a chip applied to a terminal device, the terminal device chip implements the functions of the terminal device in the above method embodiment.
  • the terminal device chip receives information from other modules in the terminal device (such as a radio frequency module or an antenna), and the information is sent by the network device to the terminal device; or the terminal device chip sends information to other modules in the terminal device (such as a radio frequency module or an antenna), and the information is sent by the terminal device to the network device.
  • the network device chip When the above communication device is a chip applied to a network device, the network device chip implements the function of the network device in the above method embodiment.
  • the network device chip receives information from other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the terminal device to the network device; or the network device chip sends information to other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the network device to the terminal device.
  • processors in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits, or a processor.
  • CPU central processing unit
  • DSP digital signal processors
  • ASIC Application Specific Integrated Circuit
  • ASIC Field Programmable Gate Array
  • FPGA Field Programmable Gate Array
  • a general-purpose processor can be a microprocessor or any conventional processor.
  • the processor may be a random access memory (RAM), a flash memory, a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a register, a hard disk, a mobile hard disk, a CD-ROM, or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium.
  • the storage medium may also be a component of the processor.
  • the processor and the storage medium may be located in an ASIC.
  • the ASIC may be located in a network device or a terminal device.
  • the processor and the storage medium may also exist as discrete components in a network device or a terminal device.
  • the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) that contain computer-usable program code.
  • a computer-usable storage media including but not limited to disk storage, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

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

Abstract

La présente demande concerne un procédé, un appareil et un système de communication. Le procédé de communication comprend les étapes suivantes : dans le procédé, des premières informations d'indication (ou un second champ dans les premières informations d'indication) peuvent indiquer le type d'un dispositif de réception, ou les premières informations d'indication indiquent un identifiant correspondant à un premier signal de liaison latérale ; selon le type du dispositif de réception, qui est indiqué par les premières informations d'indication, et le type d'un premier dispositif, ou selon l'identifiant correspondant au premier signal de liaison latérale, et un identifiant du premier dispositif, le premier dispositif détermine s'il faut détecter le premier signal de liaison latérale ; si le premier dispositif détermine que le type du premier dispositif est différent du type du dispositif de réception, qui est indiqué par les premières informations d'indication, ou que l'identifiant correspondant au premier signal de liaison latérale est différent de l'identifiant du premier dispositif, le premier dispositif ne peut pas détecter le premier signal de liaison latérale, ce qui permet d'éviter une détection inutile qui peut être présente dans le cas de la coexistence de dispositifs de différents types, de telle sorte que la consommation d'énergie du dispositif de réception peut être réduite. À titre d'exemple, le procédé peut être appliqué à un système de communication de liaison latérale.
PCT/CN2024/094278 2023-06-16 2024-05-20 Procédé, appareil et système de communication Ceased WO2024255537A1 (fr)

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CN202310986948.8A CN119155811A (zh) 2023-06-16 2023-08-07 通信方法、装置及系统

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