Wireless communication method and communication device

Abstract

The invention provides a wireless communication method and communication equipment. The method comprises the following steps: a first device receives first information sent by a second device; the first device executes a first operation according to the first information; wherein the first operation comprises the following steps: determining / monitoring information carried by a first physical channel, wherein the information comprises R2D physical layer control information; and / or, receiving the R2D physical layer control information. Through the first information, the first device can clearly determine how to determine / monitor the physical channel bearing the R2D physical layer control information; and / or the first device can correctly receive the R2D physical layer control information. Therefore, on the basis of the method and the device, correct receiving of the R2D physical layer control information can be realized, so that the processing time delay and complexity of the A-IoT equipment are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and more particularly, to a wireless communication method and a communication device. BACKGROUND

[0002] In recent years, the Internet of Things (IoT) has attracted much attention in the field of wireless communication. In order to improve production efficiency and improve the comfort of life, more and more "things" are expected to be connected to each other. Further reducing the size, complexity and power consumption of IoT devices can enable the deployment of hundreds of billions or even trillions of IoT devices for various applications and provide additional value throughout the value chain. Most of the current IoT devices need to be powered by manually replacing batteries or charging batteries for all IoT devices, which will result in high maintenance costs, serious environmental problems, and even safety hazards in some scenarios (such as wireless sensors in the power and oil industries). Therefore, some communication technologies propose ambient IoT (A-IoT) technology. In the A-IoT scenario, there can be A-IoT devices and reader devices. SUMMARY

[0003] Embodiments of the present application provide a wireless communication method and a communication device. The following introduces each aspect of the present application.

[0004] In a first aspect, a wireless communication method is provided. The method includes: a first device receiving first information sent by a second device; and the first device performing a first operation according to the first information; wherein the first operation includes: determining / listening to information carried by a first physical channel including reader-to-device (R2D) physical layer control information; and / or receiving the R2D physical layer control information.

[0005] In a second aspect, a wireless communication method is provided. The method includes: a second device sending first information to a first device; wherein the first information is used for the first device to perform a first operation; and the first operation includes: determining / listening to information carried by a first physical channel including R2D physical layer control information; and / or receiving the R2D physical layer control information.

[0006] In a third aspect, a communication device is provided. The communication device is a first device, and the communication device includes: a first receiving unit configured to receive first information sent by a second device; and an execution unit configured to perform a first operation according to the first information; wherein the first operation includes: determining / listening to information carried by a first physical channel including R2D physical layer control information; and / or receiving the R2D physical layer control information.

[0007] In a fourth aspect, a communication device is provided, the communication device being a second device, the communication device comprising: a first sending unit configured to send first information to a first device, wherein the first information is used by the first device to perform a first operation, and the first operation comprises: determining / listening to information carried on a first physical channel, wherein the information comprises R2D physical layer control information; and / or receiving the R2D physical layer control information.

[0008] In a fifth aspect, a communication device is provided, the communication device comprising a transceiver, a memory, and a processor, wherein the memory is configured to store a program, the processor is configured to invoke the program in the memory, and control the transceiver to receive or send signals, so that the communication device performs part or all of the steps in the method of the first aspect.

[0009] In a sixth aspect, a communication device is provided, the communication device comprising a transceiver, a memory, and a processor, wherein the memory is configured to store a program, the processor is configured to invoke the program in the memory, and control the transceiver to receive or send signals, so that the communication device performs part or all of the steps in the method of the second aspect.

[0010] In a seventh aspect, a communication system is provided, the system comprising the communication device described above. In another possible design, the system can further comprise other devices interacting with the communication device in the solutions provided by the embodiments of the present application.

[0011] In an eighth aspect, a computer-readable storage medium is provided, the computer-readable storage medium storing a computer program, the computer program causing a communication device to perform part or all of the steps in the methods of the aspects described above.

[0012] In a ninth aspect, a computer program product is provided, the computer program product comprising a non-transitory computer-readable storage medium storing a computer program, the computer program being operable to cause a communication device to perform part or all of the steps in the methods of the aspects described above. In some implementations, the computer program product can be a software installation package.

[0013] In a tenth aspect, a chip is provided, the chip comprising a memory and a processor, the processor being capable of invoking and running a computer program from the memory to implement part or all of the steps described in the methods of the aspects described above.

[0014] Through the first information, the first device can determine / listen to the R2D physical layer control information carried in the channel, and / or the first device can correctly receive the R2D physical layer control information. Therefore, based on the present application, the correct reception of the R2D physical layer control information can be achieved, thereby reducing the processing delay and complexity of the A-IoT device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Figure 1 is a system architecture diagram of a wireless communication system to which embodiments of the present application can be applied.

[0016] Figure 2 Figure 2 is a network architecture diagram to which embodiments of the present application can be applied.

[0017] Figure 3A Figure 3B Figure 3C Figure 3 is a wireless protocol stack structure diagram to which embodiments of the present application can be applied.

[0018] Figure 4A Figure 4B Figure 4C Figure 4D Figure 4E Figures 4A and 4B are A-IoT connection topology diagrams.

[0019] Figure 5 Figure 5 is an adaptive flow diagram of a wireless communication method according to an embodiment of the present application.

[0020] Figure 6A Figure 6B Figure 7A Figure 7B Figures 6A and 6B are diagrams of a first physical channel and a second physical channel.

[0021] Figure 8 Figure 7 is a diagram of a PRDCH.

[0022] Figure 9A Figure 9B Figures 8A and 8B are diagrams of a preamble.

[0023] Figure 10A Figure 10B Figure 10C Figures 9A and 9B are diagrams of message type information indication.

[0024] Figure 11 Figure 10 is a diagram of a PRDCH.

[0025] Figure 12A Figure 11 is a diagram of frequency domain resource allocation.

[0026] Figure 12B Figure 12 is a diagram of a post-amble.

[0027] Figure 13 Figure 13 is a schematic structural diagram of a communication device 1300 according to an embodiment of the present application.

[0028] Figure 14 Figure 14 is a schematic structural diagram of a communication device 1400 according to an embodiment of the present application.

[0029] ​​​​​​​​​​​​Figure 15 is a schematic structural diagram of a device for communication provided by an embodiment of the present application. DETAILED DESCRIPTION

[0030] Communication system architecture Figure 1 is an example of a system architecture of a wireless communication system 100 to which embodiments of the present application can be applied. The wireless communication system 100 can include a network device 110 and a terminal device 120. The network device 110 can be a device that communicates with the terminal device 120. The network device 110 can provide communication coverage for a specific geographic area and can communicate with the terminal device 120 located within the coverage area.

[0031] Figure 1 One network device and multiple terminal devices are exemplarily shown, for example, the terminal device 120a to the terminal device 120j in the figure. Alternatively, the wireless communication system 100 can include multiple network devices and each network device can include other numbers of terminal devices within its coverage, which is not limited by embodiments of the present application.

[0032] Alternatively, the wireless communication system 100 can further include a network controller, a mobile management entity and other network entities, which are not limited by embodiments of the present application.

[0033] It should be understood that the technical solutions of embodiments of the present application can be applied to various communication systems, for example: a 5th-generation (5G) system or a new radio (NR) system, a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a 5G advanced system, etc. The technical solutions provided by the present application can also be applied to future communication systems, such as a 6th-generation (6G) mobile communication system, a satellite communication system, etc.

[0034] The terminal device in the embodiments of the present application can also be referred to as a user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile station (MS), a mobile terminal (MT), a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user apparatus. The terminal device in the embodiments of the present application can refer to a device providing voice and / or data connectivity for a user, and can be used to connect people, things and machines, such as handheld devices with wireless connection function, vehicle-mounted devices, etc. The terminal device in the embodiments of the present application can be a mobile phone, a tablet computer (Pad), a notebook computer, a palm computer, a camera device, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. Optionally, the terminal device can be used to act as a base station. For example, the terminal device can act as a scheduling entity, which provides sidelink signals between UEs in vehicle-to-everything (V2X) or device-to-device (D2D), etc. For example, a cellular phone and a car communicate with each other using sidelink signals. The cellular phone and the smart home device communicate with each other without relaying the communication signals through the base station.

[0035] The network device in the embodiments of the present application can be a device for communicating with a terminal device, which can also be referred to as an access network device or a radio access network device, such as a base station (BS). The network device in the embodiments of the present application can refer to a radio access network (RAN) node or a next generation RAN (NG-RAN) node (or device) that accesses a user equipment to a wireless network. The base station can broadly cover various names in the following or be replaced by the following names, such as: Node B, evolved Node B (eNB), next generation Node B (gNB), relay station, transmitting and receiving point (TRP), transmitting point (TP), master station (MeNB), auxiliary station (SeNB), multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. The base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. The base station can also refer to a communication module, modem or chip for being arranged in the foregoing device or apparatus. The base station can also be a mobile switching center and a device assuming a base station function in D2D, V2X, machine-to-machine (M2M) communication, a network side device in 6G network, a device assuming a base station function in future communication system, etc. The base station can support networks of the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device.

[0036] The base station can be fixed or mobile. For example, a helicopter or a drone can be configured to act as a mobile base station, and one or more cells can move according to the location of the mobile base station. In other examples, the helicopter or the drone can be configured to act as a device communicating with another base station.

[0037] In some deployments, the network device in the embodiments of the present application can refer to a CU or a DU, or the network device includes a CU and a DU. The gNB can also include an AAU.

[0038] The network device and the terminal device can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on water surface; can also be deployed on aircraft, balloons and satellites in the air. The scenarios in which the network device and the terminal device in the embodiments of the present application are located are not limited.

[0039] It should be understood that all or part of the functions of the communication device in the present application can also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform (such as a cloud platform).

[0040] Figure 2 An exemplary schematic diagram of a network architecture 200 of an embodiment of the present application is shown. The network architecture 200 illustrates the network architecture of the 5G NR / LTE / LTE-A system, and the 5G NR / LTE / LTE-A network architecture can also be referred to as the 5G system (5GS) / evolved packet system (EPS) network architecture. The network architecture 200 includes at least one of a network device 110, a terminal device 120, a 5G core network (5GC) / evolved packet core (EPC) 210, a home subscriber server (HSS) / unified data management (UDM) 220 and an Internet service 230. Figure 2 The network device and the terminal device in the network architecture 200 are taken as examples of RAN and UE respectively.

[0041] As Figure 2As shown, network equipment 110 provides user plane protocol and control plane protocol termination toward terminal equipment 120. Network equipment 110 is connected to 5GC / EPC 210 over an S1 / NG interface. 5GC / EPC 210 includes mobility management entity (MME) / authentication management field (AMF) / session management function (SMF) 211, other MME / AMF / SMF 214, service gateway (S-GW) / user plane function (UPF) 212, and packet data network gateway (P-GW) / UPF 213. MME / AMF / SMF 211 is a control node that handles signaling between terminal equipment 120 and 5GC / EPC 210. Generally, MME / AMF / SMF 211 provides bearer and connection management. All user internet protocol (IP) packets are transferred through S-GW / UPF 212, which is itself connected to P-GW / UPF 213. The P-GW provides UE IP address allocation as well as other functions. P-GW / UPF 213 is connected to internet services 230. Internet services 230 include operator corresponding internet protocol services, which can include the Internet, intranet, IP multimedia subsystem (IMS), and packet switched streaming services, among others. As can be seen, network architecture 200 provides packet switched services, however those of skill in the art will readily understand that the various concepts presented throughout this application can be extended to networks or other cellular networks that provide circuit switched services.

[0042] Figure 3A , Figure 3B and Figure 3C respectively show a wireless protocol stack structure diagram of one embodiment of the present application. Figure 3A and Figure 3B Take the 5G wireless protocol stack as an example for introduction. The 5G wireless protocol stack is divided into two planes: a user plane (UP) protocol stack and a control plane (CP) protocol stack. The user plane protocol stack is the protocol cluster adopted by user data transmission, and the control plane protocol stack is the protocol cluster adopted by 5G system control signaling transmission. The names of the layers of each protocol stack are as follows: As Figure 3AAs shown, the user plane protocol stack, from top to bottom, includes: the Service Data Adaptation Protocol (SDAP) layer, the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control (RLC) layer, the Medium Access Control (MAC) layer, and the Physical (PHY) layer.

[0043] like Figure 3B As shown, the control plane protocol stack, from top to bottom, includes: non-access stratum (NAS); radio resource control (RRC) layer, PDCP layer, RLC layer, MAC layer, and PHY layer.

[0044] Figure 3C This illustrates the wireless protocol stack structure that A-IoT might use. For example... Figure 3C As shown, the protocol stack for the wireless interface between the A-IoT device and the reader / writer satisfies one or more of the following: does not support the RRC layer, does not support the SDAP layer, does not support the PDCP layer, does not support the RLC layer, supports the A-IoT MAC layer, supports the A-IoT physical layer, and there is no distinction between the control plane and the user plane.

[0045] It should be understood that the different layers in the above protocol stack have different functions, and they work together through inter-layer interaction to achieve communication between terminal devices and network devices. With the development of artificial intelligence technology, AI-assisted computing has permeated the processing implementation methods of the above protocol stack. For example, the scheduling algorithm of the MAC layer and the encoding / decoding algorithm of the PHY layer can apply artificial intelligence algorithms to improve the performance of communication algorithms.

[0046] As an example, Figure 3A and Figure 3B The wireless protocol architecture described herein is applicable to the communication devices described in this application.

[0047] As an example, Figure 3A and Figure 3B The wireless protocol architecture described herein is applicable to the communication devices described in this application.

[0048] It should be understood that the explanation of terminology in the embodiments of the present application can refer to the specification protocols TS36 series, TS37 series and TS38 series of the 3rd Generation Partnership Project (3GPP), but also to the specification protocols of the Institute of Electrical and Electronics Engineers (IEEE).

[0049] A-IoT In recent years, IoT has attracted much attention in the field of wireless communication. In order to improve production efficiency and improve life comfort, more “things” are expected to be connected to each other. Further reducing the size, complexity and power consumption of Internet of Things devices can deploy hundreds of billions or even trillions of Internet of Things devices for various applications and provide additional value throughout the value chain. Most of the current Internet of Things devices need to be powered by manually replacing batteries or charging batteries for all Internet of Things devices, which will lead to high maintenance costs, serious environmental problems, and even safety hazards in some scenarios (such as wireless sensors in the power and oil industries).

[0050] Automation and digitization in various industries open up many new markets, requiring new Internet of Things technologies to support batteryless devices without energy storage capabilities or energy storage devices that do not require manual replacement or charging. For example, some communication systems propose A-IoT devices. A-IoT devices are very small in size and have no battery devices or have very small energy storage capabilities (compared to related art Internet of Things devices such as NB-IoT, LPWA, RedCap, etc.). A-IoT devices can collect energy from the environment, such as radio signals, kinetic energy, thermal energy, light energy, etc.

[0051] A-IoT devices have extremely limited capabilities and complexity due to their small size and lack of batteries or the need for charging, and have very small transmission power.

[0052] In the A-IoT scenario, the device communicating with the A-IoT device can be a reader. The reader may, for example, include one or more of the following: an A-IoT capable network device (such as an access network device); an A-IoT capable terminal device.

[0053] In the scenario of inventorying goods, the main technology applied is radio frequency identification (RFID), however, RFID cannot access the network in unlicensed bands, while A-IoT devices can access the network in unlicensed bands or other bands. To achieve the goal of A-IoT accessing the network, some communication technologies (e.g., R19) have begun to study A-IoT devices, which can more effectively manage devices, improve the efficiency of the network, and provide higher security.

[0054] Some A-IoT connectivity topology scenarios are described below in conjunction with the accompanying drawings. It should be noted that the present application can be applied to these A-IoT scenarios, and can also be applied to other A-IoT scenarios.

[0055] Figure 4A is an example diagram of an A-IoT connectivity topology. In Figure 4A , an A-IoT device is directly connected to an access network device (i.e., a reader). The signal transmission mode of the reader to the A-IoT device and the signal transmission mode of the A-IoT device to the reader can be different.

[0056] Figure 4B is another example diagram of an A-IoT connectivity topology. In Figure 4B , an A-IoT device is connected to an access network device through an intermediate node, which is an A-IoT-capable terminal device, IAB, repeater, etc. In NR research, it is mainly discussed that the intermediate node is an A-IoT-capable terminal device. In this topology, the reader is an intermediate node. The interface between the intermediate node and the A-IoT device is the same as that in the topology shown in Figure 4A , where the signal transmission mode of the reader to the A-IoT device and the signal transmission mode of the A-IoT device to the reader are different. The communication between the intermediate node and the access network device side is transmitted through the Uu interface.

[0057] Figure 4C and Figure 4D are both example diagrams of an A-IoT connectivity topology based on an assisting node. As shown in Figure 4C , in the downlink process, the A-IoT device receives a signal from the assisting node and sends a signal to the access network device. As shown in Figure 4D , in the uplink process, the A-IoT device receives a signal from the access network device and sends a signal to the assisting node. The assisting node can be an A-IoT-capable terminal device, IAB, repeater, etc.

[0058] Figure 4E is another A-IoT connection topology example diagram. In Figure 4E , the A-IoT device is directly connected with the terminal device, where the terminal device has A-IoT capability, and the reader is the terminal device.

[0059] In the A-IoT based communication process, the signal from the A-IoT device to the reader can be referred to as device to reader (D2R) signal. The signal from the reader to the A-IoT device can be referred to as reader to device (R2D) signal.

[0060] The types of A-IoT devices can include device 1, device 2b, device 2c, etc. The following are described respectively.

[0061] Device 1: peak power consumption of about 1 microwatt, with energy storage, initial sampling frequency offset (SFO) up to 10 X ppm, no R2D or D2R signal amplification in the device. D2R transmission of the device is through backscattering communication of an external carrier.

[0062] Device 2b: peak power consumption ≤ hundreds of microwatts, with energy storage, using IF envelope detection receiver or zero intermediate frequency receiver, initial SFO up to 10 Y ppm, R2D and / or D2R signal amplification is supported in the device. D2R transmission of the device is generated autonomously by the device.

[0063] Device C: peak power consumption range ≤ 1 milliwatt to ≤ 10 milliwatt, with energy storage, using IF envelope detection receiver or zero intermediate frequency receiver, initial SFO up to 10 Y ppm, R2D and / or D2R signal amplification is supported in the device. D2R transmission of the device is generated autonomously by the device.

[0064] It should be noted that the SFO value 10 Y is considered to be better than any SFO value considered for device 1 in Rel-19.

[0065] It should be noted that the A-IoT device in the present application can include device 1, device 2b, device 2c, and can also include other types of A-IoT devices.

[0066] Figure 5 is a schematic flow diagram of a wireless communication method provided by an embodiment of the present application. Figure 5The method shown can be performed by a first device and a second device. Both the first device and the second device can be communication devices in an A-IoT scenario. For example, the first device can comprise an A-IoT device, for example. The second device can comprise a reader-writer, for example.

[0067] Figure 5 The method shown can comprise step S510.

[0068] At step S510, the first device receives first information. The first information is transmitted by the second device.

[0069] In some embodiments, the first information can be used by the first device to perform a first operation. Exemplarily, Figure 5 The method shown can further comprise step S520. At step S520, the first device performs a first operation according to the first information. The first operation can be related to R2D physical layer control information.

[0070] In some embodiments, the first operation comprises one or more of the following: determining / listening to information carried by the first physical channel comprises R2D physical layer control information; and / or, receiving the R2D physical layer control information. The R2D physical layer control information is control information of a physical layer. The R2D physical layer control information can be used to carry information related to R2D transmission scheduling and / or information related to D2R transmission scheduling.

[0071] In some embodiments, the R2D control information can comprise one or more of the following: R2D scheduling related information; D2R scheduling related information; D2R power control related information.

[0072] The R2D scheduling related information can comprise one or more of the following: FEC code rate information; R2D chip duration information; R2D repetition related information; TBS information; R2D data time domain resource related information; R2D data frequency domain resource related information; R2D data coding modulation related information, etc. The R2D repetition related information can comprise one or more of the following: repetition number, repetition time-frequency resource related information, for example.

[0073] The D2R scheduling related information can comprise one or more of the following: FEC code rate information; D2R chip duration information; D2R repetition related information; time domain resource related information; frequency domain related information, etc.

[0074] By introducing the R2D physical layer control information, the processing latency and complexity of the A-IoT devices can be reduced. For example, for the communication between the device 2b and the device c, the A-IoT system can be enhanced by the R2D physical layer control information, so as to reduce the processing latency, and thus the A-IoT devices can support the communication in the outdoor scenario and the like.

[0075] As described above, in the step S510, the first information is transmitted by the second device to the first device. In some implementations, the first information can be determined by the first device itself. For example, the first information can be predefined by the standard.

[0076] By the first information proposed in the present application, the first device can determine / monitor the channel carrying the R2D physical layer control information; and / or, the first device can correctly receive the R2D physical layer control information. For example, based on the first information, the first device can distinguish the control information (e.g. the R2D physical layer control information) and the data (e.g. the R2D data and / or the D2R data). For example, in the case that the control information and the data are carried in different physical channels respectively, the first device can distinguish the physical channel carrying the control information and the physical channel carrying the data according to the first information. For example, even if the control information and the data are multiplexed in the same physical channel, the first device can correctly parse the control information and the data in the physical channel based on the first information.

[0077] Therefore, based on the present application, the correct reception of the R2D physical layer control information can be achieved, so as to reduce the processing latency and complexity of the A-IoT devices.

[0078] In some embodiments, the first device can perform a second operation according to the second information. In other words, the second information can be used by the first device to perform the second operation. The second operation can be related to the D2R data and / or the R2D data.

[0079] In some embodiments, the second operation includes one or more of the following: determining that the first physical channel carries the R2D data and / or the D2R data; determining that the information carried by the second physical channel includes the R2D data and / or the D2R data; receiving the R2D data and / or the D2R data carried by the second physical channel; and receiving the R2D data and / or the D2R data carried by the first physical channel. It should be noted that the second information can be transmitted by the second device to the first device. In some implementations, the second information can be determined by the first device itself. For example, the second information can be predefined by the standard.

[0080] ​By the second information proposed in the present application, the first device can determine that the channel carries R2D data and / or D2R data; and / or, the first device can correctly receive R2D data and / or D2R data. For example, based on the second information, the first device can distinguish control information (such as R2D physical layer control information) and data (such as R2D data and / or D2R data). Therefore, based on the second information, data can be correctly received in the scenario of transmitting control information.

[0081] For the convenience of understanding, the step S520 is illustrated in detail as follows.

[0082] As an implementation manner, the step S520 can include steps S521-S525.

[0083] In step S521, the first device listens to control information according to the first information, and judges whether the first physical channel carries control information according to the first information. That is, the first operation includes determining / listening to information carried by the first physical channel including control information.

[0084] In step S522, if the first device judges that the first physical channel does not carry control information according to the first information, the first device can continue to listen.

[0085] In step S523, if the first device judges that the first physical channel carries control information according to the first information, the first device further judges whether the control information is control information scheduling the first device itself.

[0086] In step S524, if the first device judges that the control information is scheduling the first device itself, the first device can receive R2D data according to the control information.

[0087] In step S525, if the first device judges that the control information is not scheduling the first device itself, the first device can continue to listen.

[0088] As an implementation manner, the step S520 can include steps S526-S528. In step S526, the first device receives control information according to the first information. That is, the first operation includes receiving control information.

[0089] In step S527, the first device judges whether the received control information is control information scheduling the first device itself.

[0090] In step S528, if the first device judges that the control information is scheduling the first device itself, the first device can receive R2D data according to the control information.

[0091] In step S529, if the first device determines that the control information is not for scheduling the first device itself, the first device can continue to receive control information based on the first information.

[0092] For ease of description, in this application, R2D physical layer control information is referred to simply as control information. R2D data and / or D2R data is referred to simply as data.

[0093] As mentioned above, the first physical channel can be used to carry control information. The first physical channel will be explained below.

[0094] In some embodiments, the first physical channel may include a PRDCH. In related technologies (e.g., Rel-19), the PRDCH is used only to carry R2D data, i.e., higher-layer data. This embodiment can improve the PRDCH defined in related technologies so that the PRDCH can also be used to carry physical layer control information.

[0095] In some embodiments, the first physical channel may include a newly defined physical channel. The newly defined physical channel may, for example, be specifically used to carry a control channel. The newly defined physical channel may be a physical channel of a different type than PRDCH. This application does not limit the name of the newly defined physical channel. For example, the newly defined physical channel type may be called a physical layer control channel, a layer 1 (L1) control channel, or a physical layer R2D control channel.

[0096] In some embodiments, control information and data may be carried on different physical channels. For example, control information may be carried on a first physical channel, and data on a second physical channel. In this case, the first device can determine the second physical channel based on the control information carried on the first physical channel.

[0097] In some embodiments, the first physical channel and the second physical channel are different types of physical channels. For example, the second physical channel includes PRDCH, while the first physical channel does not include PRDCH. Exemplarily, the first physical channel can be a newly defined physical channel type as described above.

[0098] To facilitate understanding, the following will be explained... Figure 6A and Figure 6B The first physical channel and the second physical channel are described. Figure 6A and Figure 6B In this context, the first physical channel and the second physical channel are of different types: the first physical channel is the physical control channel, and the second physical channel is the PRDCH.

[0099] In some embodiments, the first physical channel and the second physical channel can be physical channels of the same type. For example, the first physical channel and the second physical channel can be two PRDCHs, respectively. The physical channels of the same type can be distinguished by different formats to carry data or control information. For example, a first format and a second format can be defined for PRDCH. The PRDCH of the first format can be used to carry control information. The PRDCH of the second format can be used to carry data.

[0100] For the ease of understanding, the first physical channel and the second physical channel are described below by taking Figure 7A and Figure 7B as examples. In Figure 7A and Figure 7B , the first physical channel and the second physical channel are of the same type, both of which are PRDCHs. The first physical channel is PRDCH#1, and the second physical channel is PRDCH#2.

[0101] In some embodiments, the first physical channel and the second physical channel are continuous in the time domain. In other words, the first physical channel and the second physical channel have no interval in the time domain. Continuing to take Figure 6A as an example, the physical control channel and the PRDCH are continuous in the time domain. Continuing to take Figure 7A as an example, the PRDCH#1 and the PRDCH#2 are continuous in the time domain.

[0102] The first physical channel and the second physical channel being continuous in the time domain can reduce the transmission delay. For example, while the first device decodes the control information of the first physical channel, the second physical channel can be received, i.e., the receiving is implemented while the decoding, thereby reducing the delay.

[0103] It should be noted that for the continuous first physical channel and the second physical channel, the control information of the first physical channel can be used to schedule the continuous second physical channel. Alternatively, the control information of the first physical channel can not be used to schedule the continuous second physical channel. In other words, the second physical channel scheduled by the control information of the first physical channel can be continuous or discontinuous with the first physical channel in the time domain.

[0104] In some embodiments, the first physical channel and the second physical channel are discontinuous in the time domain. In other words, the first physical channel and the second physical channel have an interval in the time domain. Continuing to take Figure 6B as an example, the physical control channel and the PRDCH are discontinuous in the time domain. Continuing to take Figure 7B as an example, the PRDCH#1 and the PRDCH#2 are discontinuous in the time domain.

[0105] The time-domain discontinuity of the first and second physical channels provides processing time for the first device to process (e.g., parse) control information. On one hand, this processing time allows the first device to avoid receiving data while decoding control information, thereby reducing its buffer. On the other hand, if the second physical channel scheduled by the first physical channel is not carrying data that the first device needs to receive, then the first device can avoid receiving the second physical channel, thus saving its energy.

[0106] In some embodiments, the first physical channel is also used to carry data. For example, the first physical channel is also used to carry R2D data or D2R data. In other words, the first physical channel is used to carry both control information and data. Alternatively, it can be said that control information and data can be carried on the same channel. For example, the first physical channel may include a PRDCH, meaning that data and control information are transmitted in the same PRDCH. As another example, the first physical channel may include the physical control channel described above, meaning that data and control information can be transmitted in the same physical control channel. For ease of understanding, the following description, in conjunction with... Figure 8 Please provide an explanation.

[0107] exist Figure 8 In this context, the first physical channel is PRDCH#1. PRDCH#1 includes control information (i.e., Figure 8 L1 control information and data (i.e.) Figure 8 The R2D upper layer data transfer message in the context of R2D.

[0108] It is understandable that carrying control information and data on the same physical channel allows the first device to receive data while decoding the control information, thereby reducing latency.

[0109] In some embodiments, when the first physical channel is used to carry control information and data, the control information and data can be encoded independently, that is, the control information is physical layer information and the data is a higher layer message, and the two are encoded separately.

[0110] In some embodiments, when the first physical channel is used to carry control information and data, the first device can receive the R2D data according to the R2D physical layer control information; and / or, the first device can send the D2R data according to the R2D physical layer control information. In other words, the R2D physical layer control information can be used by the first device to receive R2D data; and / or, the R2D physical layer control information can be used by the first device to send D2R data.

[0111] The first piece of information will be illustrated with detailed examples below.

[0112] In some embodiments, the first information can comprise one or more of the following: preamble information, scrambling information, message type information, CRC information, frequency domain resource information. The following are explained respectively.

[0113] Preamble information In some embodiments, the first information can comprise preamble information. Similarly, the second information can comprise preamble information. Illustratively, the first device can receive the first physical channel and parse the preamble information of the first physical channel, if the preamble information indicates that the preamble is a preamble corresponding to control information, the first device can perform the first operation described above; and / or, if the preamble information indicates that the preamble is a preamble corresponding to data, the first device can perform the second operation described above. Illustratively, the first device can receive the second physical channel and parse the preamble information of the second physical channel, if the preamble information indicates that the preamble is a preamble corresponding to data, the first device can perform the second operation described above. The following is an example of the operation performed by the first device when the first information comprises preamble information. The first operation can comprise steps S101-S105.

[0114] Step S101, the first device listens to control information according to the preamble information, and determines whether the first physical channel carries control information according to the preamble information.

[0115] Step S102, if the first device determines that the first physical channel does not carry control information according to the preamble information, the first device can continue to listen.

[0116] Step S103, if the first device determines that the first physical channel carries control information according to the preamble information, the first device further determines whether the control information is control information scheduling the first device itself.

[0117] Step S104, if the first device determines that the control information is scheduling the first device itself, the first device can receive R2D data according to the control information.

[0118] Step S105, if the first device determines that the control information is not scheduling the first device itself, the first device can continue to listen.

[0119] It should be noted that the position of the preamble can be at the front of the first physical channel and immediately follow the first physical channel.

[0120] The following takes the first preamble and the second preamble as an example for illustration. The preamble before the control information is the first preamble. The preamble before the data is the second preamble. Exemplarily, the first preamble is the preamble at the front of the physical channel carrying the control information. The second preamble is the preamble at the front of the physical channel carrying the data. Exemplarily, the control information and the data are carried in the same physical channel, which includes both the first preamble and the second preamble. The preamble before the control information is the first preamble, and the preamble before the data is the second preamble. In this case, the second preamble is located in the middle of the physical channel, and thus can also be referred to as a midamble. The first preamble can also be referred to as a preamble for control information, a preamble for R2D control information. The second preamble can also be referred to as a preamble for data, a preamble for R2D data.

[0121] As an implementation manner, the first preamble and the second preamble are different. The first device can distinguish the data and the control information based on the different preambles. If it is judged that the first preamble, the first operation can be performed. If it is judged that the second preamble, the second operation can be performed. The following takes the first preamble and the second preamble as an example for illustration. Figure 9A and Figure 9B are taken as an example for illustration.

[0122] As shown in Figure 9A , the control information and the data are carried in two PRDCHs respectively. The formats of the two PRDCHs are different, which are format 0 and format 1 respectively. The preambles of the format 0 PRDCH and the format 1 PRDCH are different. The preamble of the format 0 PRDCH is a preamble for control information. The preamble of the format 1 PRDCH is a preamble for R2D data. The format 0 PRDCH is used to carry the control information (i.e. the L1 control information in Figure 9A ). The format 1 PRDCH is used to carry the data (i.e. the R2D upper layer data conversion message in Figure 9A ).

[0123] As shown in Figure 9B , the control information and the data are carried in a physical control channel and a PRDCH respectively. The preamble of the physical control channel is a preamble for control information. The preamble of the PRDCH is a preamble for R2D data. The physical control channel is used to carry the control information (i.e. the L1 control information in Figure 9BL1 control information in the PRACH preamble). The PRDCH is used to carry data (i.e. Figure 9B R2D upper layer data conversion message in the PRACH preamble).

[0124] In some embodiments, the preamble information can comprise information of the preamble sequence. For example, the preamble information can comprise one or more of the following: a type of the preamble sequence; an orthogonality of the preamble sequence; a length of the preamble sequence. In other words, based on the type, the orthogonality, the length, etc. of the preamble sequence, it can be distinguished whether the preamble is the first preamble or the second preamble.

[0125] As an implementation, the types of the preamble sequences corresponding to the first preamble and the second preamble can be different. The type of the first preamble and / or the type of the second preamble can satisfy one or more of the following: predefined by a protocol; indicated by the second device. Illustratively, the second device can indicate the type of the first preamble and / or the type of the second preamble by one or more of the following: broadcast information, A-IoT paging message, etc. According to the type of the preamble sequence, it can be determined whether the received preamble is the first preamble or the second preamble, so as to distinguish the control information and the data according to the first preamble and the second preamble.

[0126] In some embodiments, the type of the preamble sequence can comprise one or more of the following: m-sequence, Golay sequence, Walsh sequence, Gold sequence, etc. The types of the preambles used by the control information and the data can be different. In other words, the control information and the data can be distinguished according to the type of the preamble. For example, the type of the first preamble sequence can be a first type (e.g. m-sequence, Golay sequence, Walsh sequence or Gold sequence). For another example, the type of the second preamble sequence can be a second type. The first type and the second type can be different.

[0127] In some embodiments, the control information and the data can use different generating formula to generate the preamble. For example, the generating formula used by the control information is a first generating formula. For another example, the generating formula used by the data is a second generating formula.

[0128] In some embodiments, the control information and the data can use different initial sequences to generate the preamble. For example, the first preamble is generated by the control information using a first specific initial sequence. For another example, the second preamble is generated by the data using a second specific initial sequence. The first specific initial sequence can satisfy one or more of the following: configured by the second device; predefined; preconfigured. The second specific initial sequence can satisfy one or more of the following: configured by the second device; predefined; preconfigured.

[0129] For the convenience of understanding, the following is illustrated by Example 1.1 and Example 1.2.

[0130] Example 1.1, the preamble (i.e., the first preamble) in front of the channel carrying the control information is an m-sequence, where the m-sequence is generated by the formula with the initial input of "111" to obtain the m-sequence 1110100. The preamble (i.e., the second preamble) in front of the channel carrying the data is a Walsh sequence "00110011". Part or all of the information about the first preamble can satisfy one or more of the following: configured by the second device; predefined; preconfigured. Part or all of the information about the second preamble can satisfy one or more of the following: configured by the second device; predefined; preconfigured.

[0131] Example 1.2, the preamble (i.e., the first preamble) in front of the channel carrying the control information is a Gold sequence with a length of 31, where the Gold sequence is obtained by XORing the m-sequences generated by the formula and to obtain the Gold sequence "1001011001111100011011101010000". The preamble (i.e., the second preamble) in front of the channel carrying the data is an m-sequence "1111100011011101010000100101100". Part or all of the information about the first preamble can satisfy one or more of the following: configured by the second device; predefined; preconfigured. Part or all of the information about the second preamble can satisfy one or more of the following: configured by the second device; predefined; preconfigured.

[0132] As an implementation manner, the first preamble and the second preamble can adopt sequences with orthogonality. For example, the first preamble and the second preamble can adopt sequences of the same type and with orthogonality. For another example, the first preamble and the second preamble can use sequences of the same length and with orthogonality. For another example, the first preamble and the second preamble can have orthogonality, and the initialization sequences of the first preamble and the second preamble are different. Sequences with good orthogonality, such as Gold sequences, ZC sequences, etc., have good anti-interference ability, and can also maintain stable low correlation in an asynchronous system.

[0133] For ease of understanding, the following is illustrated by way of example 1.3.

[0134] Example 1.3, the preamble (i.e., the first preamble) in front of the channel carrying the control information and the preamble (i.e., the second preamble) in front of the channel carrying the data have the same sequence length and the same type, for example, the type can be a ZC sequence, a Gold sequence, an m-sequence, etc.

[0135] In Example 1.3, the preamble in front of the channel carrying the control information and the preamble in front of the channel carrying the data are both Gold sequences. If the Gold sequence length is 63, the Gold sequence is preferably generated from a m-sequence and The initialization sequence from which the preamble in front of the channel carrying the control information is generated is different from the initialization sequence from which the preamble in front of the channel carrying the data is generated. For example, the initialization sequence from which the preamble in front of the channel carrying the control information is generated is "111111", and the initialization sequence from which the preamble in front of the channel carrying the data is generated is a sequence other than "111111", such as "000001". Some or all of the information related to the first preamble can satisfy one or more of the following: configured by the second device; predefined; preconfigured. Some or all of the information related to the second preamble can satisfy one or more of the following: configured by the second device; predefined; preconfigured.

[0136] As an implementation, the first preamble and the second preamble can have different lengths. In other words, the first preamble and the second preamble can employ preamble sequences of different lengths. Based on the lengths of the preamble sequences, the control information and the data can be distinguished. The first information can be used to indicate the length of the first preamble. The second information can be used to indicate the length of the second preamble.

[0137] For example, the length of the first preamble is p. Where p is a positive integer. p can satisfy one or more of the following: configured by the second device; predefined; preconfigured. For another example, the length of the second preamble is q. Where q is a positive integer. q can satisfy one or more of the following: configured by the second device; predefined; preconfigured. The values of p and q can be different.

[0138] Examples 1.4 to 1.6 are used for illustration below. In Examples 1.4 to 1.6, the first preamble and the second preamble employ the same type, and the lengths of the first preamble and the second preamble can be different.

[0139] Example 1.4, for example, the preambles in front of the channel carrying the control information and the channel carrying the data both employ Walsh sequences, the preamble in front of the channel carrying the control information (i.e. the first preamble) employs a Walsh sequence of length 8, and the preamble in front of the channel carrying the data (i.e. the second preamble) employs a Walsh sequence of length 16.

[0140] Example 1.5, the preambles in front of the channel carrying the control information and the channel carrying the data both employ m-sequences, the preamble in front of the channel carrying the control information (i.e. the first preamble) employs a m-sequence of length 31, and the preamble in front of the channel carrying the data (i.e. the second preamble) employs a m-sequence of length 63.

[0141] Example 1.6, both the preamble in front of the channel carrying control information and the preamble in front of the channel carrying data employ Golay sequences, the preamble in front of the channel carrying control information (i.e., the first preamble) employs a Golay sequence of length 64, and the preamble in front of the channel carrying data (i.e., the second preamble) employs a Golay sequence of length 32.

[0142] In some embodiments, the preamble sequence is not coded modulated. For example, the first preamble sequence is not coded modulated. For another example, the second preamble sequence is coded modulated.

[0143] In some embodiments, the resource mapping of the preamble sequence (including the first preamble and / or the second preamble) is determined according to the SCS as OFDM symbols at 15 kHz. For example, one code word of the preamble sequence maps 1 / E of the length of an OFDM symbol. Where E is a positive integer, or a fraction. For example, E = 4, one code word of the sequence maps 1 / 4 of the length of an OFDM symbol. For another example, E = 1 / 2, one code word of the sequence maps 2 of the length of an OFDM symbol.

[0144] Scrambling information In some embodiments, the first information can include scrambling information. In other words, the first device can perform the first operation based on the scrambling information. Similarly, the second information can include scrambling information. In other words, the first device can perform the second operation according to the scrambling information.

[0145] The following illustrates the operation performed by the first device when the first information includes scrambling information. The first operation can include steps S201-S205.

[0146] Step S201, the first device monitors the control information according to the scrambling information, and determines whether the first physical channel carries control information according to the scrambling information.

[0147] Step S202, if the first device determines that the first physical channel does not carry control information according to the scrambling information, the first device can continue to monitor.

[0148] Step S203, if the first device determines that the first physical channel carries control information according to the scrambling information, the first device further determines whether the control information is control information scheduling the first device itself.

[0149] Step S204, if the first device determines that the control information is control information scheduling the first device itself, the first device can receive R2D data according to the control information.

[0150] Step S205, if the first device judges that the control information is not for scheduling the first device itself, the first device can continue to listen.

[0151] Taking the receiving end as an example, the first device can receive the first physical channel and use the first information to descramble the first physical channel. The descrambled first physical channel carries control information. The control information can be used to schedule the second physical channel. The first device can use the second information to descramble the second physical channel, or the first device can not descramble the second physical channel. The second physical channel is used to carry data.

[0152] Taking the sending end as an example, the second device can scramble the first physical channel using the first information. The first physical channel can be used to schedule the second physical channel. The second device can scramble the second physical channel using the second information or not scramble the second physical channel. The second physical channel is used to carry data.

[0153] In some embodiments, the scrambling information can include one or more of the following: information used for scrambling, whether scrambled.

[0154] As an implementation manner, the control information can be scrambled, and the data is not scrambled. Or, the data can be scrambled, and the control information is not scrambled. The first device can distinguish the control information and the data according to whether scrambled. Whether the control information is scrambled can be determined by one or more of the following: predefinition, pre-configuration, second device configuration, etc. Whether the data is scrambled can be determined by one or more of the following: predefinition, pre-configuration, second device configuration, etc.

[0155] As an implementation manner, the control information and the data can be distinguished based on information used for scrambling. For example, if the control information is scrambled, the first scrambling information can be used. For another example, if the data is scrambled, the second scrambling information can be used. Exemplarily, the first scrambling information and the second scrambling information are different. The first device can distinguish the data and the control information based on information used for scrambling. The first scrambling information can satisfy one or more of the following: configured by the second device; predefined; pre-configured. The second scrambling information can satisfy one or more of the following: configured by the second device; predefined; pre-configured.

[0156] In some embodiments, the information used for scrambling can include one or more of the following: length of the scrambling sequence, type of the scrambling sequence, initialization information of the scrambling sequence, orthogonality of the scrambling sequence, whether the scrambling sequence is generated based on the first sequence. The following takes the scrambling sequence of the control information as the first scrambling sequence and the scrambling sequence of the data as the second scrambling sequence as an example.

[0157] For example, the first scrambling sequence has a length of m. Where m is a positive integer. When the received scrambling sequence has a length of m, it can be determined that the channel carries control information, or that the scrambling sequence scrambles control information. m can satisfy one or more of the following: configured by the second device; predefined; preconfigured.

[0158] For another example, the second scrambling sequence has a length of n. Where n is a positive integer. m and n can have different values. In other words, the first scrambling sequence and the second scrambling sequence can use scrambling sequences of different lengths. Based on the length of the scrambling sequence, control information and data can be distinguished. n can satisfy one or more of the following: configured by the second device; predefined; preconfigured.

[0159] In some embodiments, the type of the scrambling sequence can include one or more of the following: m-sequence, Golay sequence, Walsh sequence, Gold sequence, etc. The type of the first scrambling sequence can be a first specific type. The first specific type can include one or more of the following: m-sequence, Golay sequence, Walsh sequence, Gold sequence, etc. The first specific type can satisfy one or more of the following: configured by the second device; predefined; preconfigured. The type of the second scrambling sequence can be a second specific type. The second specific type can be a type of scrambling sequence different from the first specific type. The second specific type can satisfy one or more of the following: configured by the second device; predefined; preconfigured.

[0160] In some embodiments, the first scrambling sequence and the second scrambling sequence can use sequences with orthogonality. For example, the first scrambling sequence and the second scrambling sequence can use sequences of the same type and with orthogonality.

[0161] In some embodiments, whether the scrambling sequence is the first scrambling sequence can be determined by whether the scrambling sequence is generated based on the first sequence. For example, the first scrambling sequence is generated based on the first sequence. The second scrambling sequence is not generated based on the first sequence. In other words, if the received scrambling sequence is generated based on the first sequence, it can be determined that the information scrambled by the scrambling sequence includes control information. For another example, the first scrambling sequence is not generated based on the first sequence, for example, generated based on a second sequence. Where the second sequence is a sequence different from the first sequence. The second scrambling sequence is generated based on the first sequence. In other words, if the received scrambling sequence is generated based on the second sequence, it can be determined that the information scrambled by the scrambling sequence includes control information.

[0162] The scrambling sequence generated based on the first sequence can include one or more of the following: the scrambling sequence is the first sequence; the scrambling sequence is initialized by the first sequence.

[0163] In some embodiments, the first sequence may include one or more of the following: information related to the identifier of the first device, an m-sequence, a Golay sequence, a Gold sequence, a pseudo-random sequence, sequence information, a predefined or preconfigured specific sequence, a first specific identifier, etc.

[0164] Information associated with the identifier of the first device may include one or more of the following: some or all of the bits generated when sending message 1 (Msg 1); some or all of the bits in the electronic product code (EPC) corresponding to the first device. For example, the control information may be scrambled using information associated with the identifier of the first device, or may be scrambled multiple times using information associated with the identifier of the first device. The data may be scrambled using other information (e.g., pseudo-random sequences and / or sequence information).

[0165] The first specific identifier may include one or more of the following: a paging ID defined at a higher level, or a transaction ID.

[0166] To facilitate understanding, examples 2.1 to 2.5 are provided below.

[0167] Example 2.1: Control information is scrambled by a Gold sequence of length 31. This sequence is initialized with specific sequence information, such as "111111", or a paging ID or interaction process ID defined by a higher layer.

[0168] Example 2.2: The scrambling sequence of the control information is a Gold sequence of length 31, and the information related to the identifier of the first device is 16 random bits in Msg1. The scrambling sequence of the control information is initialized by the first 6 bits or the last 6 bits of the 16-bit ID information.

[0169] Example 2.3: The scrambling information for the control information is either the 16-bit ID information in Msg1 or the information obtained by repeating the 16-bit ID information in Msg1 N times.

[0170] Example 2.4: The scrambling sequence of the control information is a Gold sequence of length 31. The information related to the identification of the first device is the ID information EPC that comes with the first device from the factory. The scrambling information of the control information is initialized by the first 6 bits or the last 6 bits of the EPC information.

[0171] Example 2.5: The scrambling information for the control information is a portion of the ID information EPC that comes with the first device from the factory, such as the last M bits of the EPC. Here, M is a positive integer.

[0172] Message type information The message type information can be used to indicate a type of information carried by the physical channel, and / or whether the physical channel is a control channel. The control channel can be a physical channel used to carry control information.

[0173] The following describes operations performed by the first device, with the first information including the message type information. The first operation can include steps S301-S305.

[0174] At step S301, the first device listens to control information according to the message type information, and determines whether the first physical channel carries control information according to the message type information.

[0175] At step S302, if the first device determines that the first physical channel does not carry control information according to the message type information, the first device can continue to listen.

[0176] At step S303, if the first device determines that the first physical channel carries control information according to the message type information, the first device further determines whether the control information is control information scheduling the first device itself.

[0177] At step S304, if the first device determines that the control information is control information scheduling the first device itself, the first device can receive R2D data according to the control information.

[0178] At step S305, if the first device determines that the control information is not control information scheduling the first device itself, the first device can continue to listen.

[0179] The information type can include control information and data. In other words, the message type information can indicate one or more of the following: whether the physical channel to which the message type information belongs carries control information; whether the physical channel to which the message type information belongs carries data; and whether the physical channel to which the message type information belongs is a control channel.

[0180] In some embodiments, the message type information can be physical layer information. The message type information can be pre-information of control information and / or data, i.e., the message type information precedes the control information and / or data. For example, the message type information is located at the front of the first physical channel. For example, the first physical channel starts with the message type information. Alternatively, the first physical information precedes the preamble. For example, the message type information is located after the preamble.

[0181] In some embodiments, the message type information is indicated by one or more of the following: a specific encoding value; N-bit indication information. Wherein N is a positive integer.

[0182] For example, the message type information can be represented by a specific encoding value to indicate that the physical channel carries control information, or to indicate that the physical channel is a control channel.

[0183] For example, if control information and data can be transmitted on the same channel, the value of the N-bit indication information being a first value can indicate that the following physical channel carries data, the value of the N-bit indication information being a second value can indicate that the following physical channel carries control information, and the value of the N-bit indication information being a third value can indicate that the following physical channel carries control information and data.

[0184] For example, if control information and data cannot be transmitted on the same channel, the value of the N-bit indication information being a first value can indicate that the following physical channel carries data, and the value of the N-bit indication information being a second value can indicate that the following physical channel carries control information.

[0185] For example, in the case of N = 1, the first value can be 0 and the second value can be 1.

[0186] For example, in the case of N > 1, the first value can be 0001, the second value can be 0010, and the third value can be 0011; or the first value can be 00, the second value can be 01, and the third value can be 10.

[0187] For example, in the case that control information and data can be carried on the same newly defined channel or the same PRDCH, N can be greater than 1, the value of the N-bit indication information being a first value can indicate that the following physical channel carries data, the value of the N-bit indication information being a second value can indicate that the following physical channel carries control information, and the value of the N-bit indication information being a third value can indicate that the following physical channel carries control information and data.

[0188] For example, in the case that control information and data can be carried on the same newly defined channel or the same PRDCH, N can be equal to 1, the value of the N-bit indication information being a first value can indicate that the following physical channel carries data, and the value of the N-bit indication information being a second value can indicate that the following physical channel carries control information, and the PRDCH can further carry data after the control information.

[0189] For example, in the case that control information and data cannot be carried on the same channel, N can be equal to 1, the value of the N-bit indication information being a first value can indicate that the following physical channel carries data, and the value of the N-bit indication information being a second value can indicate that the following physical channel carries control information. For ease of understanding, examples 3.1 to 3.3 are described below.

[0190] Example 3.1, the message type information is 1 bit information, when the control information and data are carried on one channel (e.g. carried on one PRDCH), the message type information indicates "1" to indicate that the channel contains control information, and the control information is transmitted before the data. The control information contains information related to the scheduling of the subsequent data on the channel. The message type information indicates "0" to indicate that the channel contains no control information and only data.

[0191] Figure 10A is an example diagram of a PRDCH containing message type information provided by example 3.1. As shown, the message type information indicates 1, the PRDCH contains control information (indicated as L1 control information) and data (indicated as R2D upper layer data conversion message), and the control information is before the data. The message type information indicates 0, the PRDCH contains no control information and only data. Figure 10A Figure 10A Figure 10A

[0192] Example 3.2, the message type information is 1 bit information, when the control information and data are not transmitted on the same channel, the message type information indicates "1" to indicate that the channel carries control information, and the message type information indicates "0" to indicate that the channel carries data.

[0193] Figure 10B is an example diagram of a physical channel containing message type information provided by example 3.2. As shown, the message type information indicates 1, the channel carries control information (indicated as L1 control information). The message type information indicates 0, the channel carries data (indicated as R2D upper layer data conversion message), i.e. the channel is a PRDCH. Figure 10B Figure 10B Figure 10B

[0194] Example 3.3, the message type information is 2 bit information, when the control information and data are transmitted on the same channel, the message type information indicates "01" to indicate that the channel carries data, the message type information indicates "10" to indicate that the channel carries control information, the message type information indicates "01" to indicate that the channel carries data, and the message type information indicates "11" to indicate that the channel carries control information and data.

[0195] Figure 10C is an example diagram of a physical channel containing message type information provided by example 3.3. As shown, the message type information indicates 10, the channel carries control information (indicated as L1 control information). The message type information indicates 01, the channel carries data (indicated as R2D upper layer data conversion message). Figure 10C Figure 10C Figure 10C ​​​​​​​​The message type information indicates that the channel carries control information and data.

[0196] It should be noted that, Figure 10C The channels shown can all be PRDCHs. Alternatively, the channel carrying control information and / or the channel carrying control information + data can also be a newly defined physical channel.

[0197] In some embodiments, the encoding and modulation manner of the message type information is the same as or different from the encoding and modulation manner of the control information and / or the data. The modulation and encoding manner may, for example, include one or more of the following: encoding manner, code rate size, modulation manner, modulation order (e.g., M value of OOK-4 modulation).

[0198] For example, the encoding and modulation manner of the message type can satisfy one or more of the following: predefined by a protocol, configured by the second device.

[0199] For another example, if the control information and the data can be transmitted on the same channel, the encoding and modulation manner of the message type can be the same as the encoding and modulation manner of the control information.

[0200] For another example, if the control information and the data can be transmitted on the same channel, the encoding and modulation manner of the message type can be the same as the encoding and modulation manner of the data.

[0201] For another example, if the control information and the data cannot be transmitted on the same channel, the encoding and modulation manner of the message type can be the same as the encoding and modulation manner of the control information or the data carried by the channel.

[0202] CRC information In some embodiments, the first information can include CRC information. In other words, the first operation can be performed based on the CRC information. Similarly, the second information can include CRC information. In other words, the second operation can be performed according to the second information.

[0203] The following illustrates the operation performed by the first device when the first information includes CRC information. The first operation can include steps S401-S405.

[0204] In step S401, the first device listens to the control information according to the CRC information, and determines whether the first physical channel carries control information according to the CRC information.

[0205] In step S402, if the first device determines that the first physical channel does not carry control information according to the CRC information, the first device can continue to listen.

[0206] Step S403: If the first device determines that the first physical channel carries control information based on the CRC information, the first device further determines whether the control information is the control information for scheduling the first device itself.

[0207] In step S404, if the first device determines that the control information is for scheduling the first device itself, the first device can receive R2D data based on the control information.

[0208] In step S405, if the first device determines that the control information is not for scheduling the first device itself, the first device can continue to listen.

[0209] For example, control information and data can be distinguished based on CRC information. For instance, the CRC checksum for control information is a first CRC checksum, and the CRC checksum for data is a second CRC checksum. As another example, the CRC checksum of the physical channel carrying control information is a first CRC checksum, and the CRC checksum of the physical channel carrying data is a second CRC checksum. The information in the first CRC checksum can satisfy one or more of the following: configured by the second device; predefined; pre-configured. The information in the second CRC checksum can satisfy one or more of the following: configured by the second device; predefined; pre-configured.

[0210] For example, when control information and data are transmitted on the same physical channel, CRC checksums can be added to the control information and data separately on that channel. Figure 11 This is an example diagram of a PRDCH. In Figure 11 In the middle, control information ( Figure 11 Represented as L1 control information) and data ( Figure 11 The R2D upper-layer data conversion messages have CRC checksums added to them. The CRC checksum for control information is the first CRC checksum. The CRC checksum for data is the second CRC checksum.

[0211] As one implementation method, the first CRC checksum and the second CRC checksum are different. The first device can distinguish between data and control information based on the different CRC checksums.

[0212] In some embodiments, the CRC information may include CRC checksum information. For example, the CRC information may include one or more of the following: the length of the CRC checksum; the generator formula of the CRC checksum; and the initialization information of the CRC checksum.

[0213] As one implementation, the length of the first CRC checksum is w, where w is a positive integer. w can satisfy one or more of the following: configured by the second device; predefined; pre-configured. With a CRC checksum length of w, it can be determined that the information preceding the CRC checksum is control information.

[0214] For example, the length of the second CRC check code is y. Wherein, y is a positive integer. y can satisfy one or more of the following: configured by the second device; predefined; preconfigured. The values of w and y can be different. In other words, the first CRC check code and the second CRC check code can use CRC check code sequences of different lengths. Based on the length of the CRC check code sequence, the control information and the data can be distinguished.

[0215] As an implementation manner, the generation formula of the first CRC check code is a first generation formula. The first generation formula can satisfy one or more of the following: configured by the second device; predefined; preconfigured. The first device can determine whether the CRC check code is the first CRC check code according to whether the generation formula of the CRC check code is the first generation formula, that is, whether the CRC check code before the CRC check code is control information. The generation formula of the second CRC check code is a second generation formula. Wherein, the first generation formula and the second generation formula are different. The second generation formula can satisfy one or more of the following: configured by the second device; predefined; preconfigured. The first device can determine whether the CRC check code is the second CRC check code according to whether the generation formula of the CRC check code is the second generation formula, that is, whether the CRC check code before the CRC check code is data.

[0216] As an implementation manner, the initialization information of the first CRC check code is a first initialization information. The first initialization information can satisfy one or more of the following: configured by the second device; predefined; preconfigured. The first device can determine whether the CRC check code is the first CRC check code according to whether the initialization information of the CRC check code is the first initialization information, that is, whether the CRC check code before the CRC check code is control information. The second initialization information can satisfy one or more of the following: configured by the second device; predefined; preconfigured. Wherein, the first initialization information and the second initialization information are different. The second initialization information can satisfy one or more of the following: configured by the second device; predefined; preconfigured. The first device can determine whether the CRC check code is the second CRC check code according to whether the initialization information of the CRC check code is the second initialization information, that is, whether the CRC check code before the CRC check code is data.

[0217] Examples 4.1 to 4.4 are examples of distinguishing control information and data by CRC information.

[0218] Example 4.1, the lengths of the CRC check codes of the control information and the data are different.

[0219] Example 4.2, the lengths of the CRC check codes of the control information and the data are the same, and the generation formulas are different.

[0220] Example 4.3, the CRC check code of the control information and the CRC check code of the data are generated in the same way, and the initialization sequences are different.

[0221] Example 4.4, the CRC check code of the control information and the CRC check code of the data are generated in the same way, and the initialization sequences are the same.

[0222] Frequency domain resource information In some embodiments, the first information can include frequency domain resource information. In other words, the first device can determine whether the physical channel carries control information or receive control information based on the frequency domain resource occupied by the physical channel or information. Alternatively, the first device can distinguish data and control information according to the frequency domain resource information.

[0223] The following illustrates the operation of the first device based on the first information including frequency domain resource information. The first operation can include steps S501-S505.

[0224] Step S501, the first device listens to the control information according to the frequency domain resource information, and determines whether the first physical channel carries control information according to the frequency domain resource information. For example, the first device listens to the control information on the frequency domain resource occupied by the control information, and determines whether the first physical channel carries control information according to the frequency domain resource occupied by the first physical channel.

[0225] Step S502, if the first device determines that the first physical channel does not carry control information according to the frequency domain resource information, the first device can continue to listen.

[0226] Step S503, if the first device determines that the first physical channel carries control information according to the frequency domain resource information, the first device further determines whether the control information is control information scheduling the first device itself.

[0227] Step S504, if the first device determines that the control information is scheduling the first device itself, the first device can receive R2D data according to the control information.

[0228] Step S505, if the first device determines that the control information is not scheduling the first device itself, the first device can continue to listen.

[0229] In some embodiments, the frequency domain resource of the control information and the frequency domain resource of the data are separated. For example, the frequency domain resource of the control information satisfies one or more of the following: second device configuration, protocol predefinition, pre-negotiation. The frequency domain resource of the first device listening to and / or receiving the control information can be fixed. The first device can receive data outside the frequency domain resource of the control information.

[0230] In some embodiments, the frequency domain resource information can comprise one or more of: a bandwidth size occupied by the control information; a starting position of the frequency domain resource occupied by the control information; an ending position of the frequency domain resource occupied by the control information; a guard band corresponding to the control information; a frequency domain offset of the control information; a frequency domain resource unit index corresponding to the control information; and a number of frequency domain resource units corresponding to the control information.

[0231] Exemplarily, the frequency domain resource information can comprise one or more of: a bandwidth size occupied by the first physical channel; a starting position of the frequency domain resource occupied by the first physical channel; an ending position of the frequency domain resource occupied by the first physical channel; a guard band corresponding to the first physical channel; a frequency domain offset of the first physical channel; a frequency domain resource unit index corresponding to the first physical channel; and a number of frequency domain resource units corresponding to the first physical channel.

[0232] The frequency domain resource unit described above is explained as follows. Exemplarily, the frequency domain resource can be divided into a plurality of frequency domain resource units in a predefined or preconfigured manner. The frequency domain resource unit can be a channel or a band, for example. The one or more frequency domain resource units occupied by a physical channel can be determined by the frequency domain resource unit index corresponding to the physical channel.

[0233] Figure 12A is an example diagram of frequency domain resource occupied by control information and data. As shown in Figure 12A , the frequency domain resource occupied by the control information comprises band 0. The frequency domain resource occupied by the PRDCH carrying data comprises band 1 to band 3. The receiving end can determine that the physical channel carries control information according to the received frequency domain resource occupied by the physical channel being band 0. Alternatively, the receiving end can determine that the physical channel carries data according to the received frequency domain resource occupied by the physical channel being one or more of band 1 to band 3.

[0234] In some embodiments, the control information can further schedule the resource information of the data. In other words, the control information can indicate the resource information of the data. Alternatively, the actual resource information occupied by the data can be determined based on the control information. Exemplarily, the resource information of the data can comprise: time domain resource information of the data and / or frequency domain resource information of the data.

[0235] Exemplarily, the frequency domain resource information of the data can comprise one or more of: a bandwidth size occupied by the data; a starting position of the frequency domain resource occupied by the data; an ending position of the frequency domain resource occupied by the data; a guard band corresponding to the data; a frequency domain offset of the data; a frequency domain resource unit index corresponding to the data; and a number of frequency domain resource units corresponding to the channel where the data is located.

[0236] For example, the frequency domain resource information of the data may include one or more of the following: the bandwidth occupied by the physical channel where the data is located; the starting position of the frequency domain resources occupied by the physical channel where the data is located; the ending position of the frequency domain resources occupied by the physical channel where the data is located; the guard band corresponding to the physical channel where the data is located; the frequency domain offset of the physical channel where the data is located; the index of the frequency domain resource cell corresponding to the physical channel where the data is located; and the number of frequency domain resource cells corresponding to the channel where the data is located.

[0237] For example, the time-domain resource information of the data may include one or more of the following: the starting position of the time-domain resource occupied by the data, the ending position of the time-domain resource occupied by the data, the duration of the time-domain resource occupied by the data, the time-domain resource offset of the time-domain resource occupied by the data, the period of the time-domain resource occupied by the data, the number of time-domain resource units of the time-domain resource occupied by the data, and the time-domain resource unit index of the time-domain resource occupied by the data.

[0238] For example, the time-domain resource information of the data may include one or more of the following: the starting position of the time-domain resource occupied by the physical channel where the data is located, the ending position of the time-domain resource occupied by the physical channel where the data is located, the duration of the time-domain resource occupied by the physical channel where the data is located, the time-domain resource offset of the time-domain resource occupied by the physical channel where the data is located, the period of the time-domain resource occupied by the physical channel where the data is located, the number of time-domain resource units of the time-domain resource occupied by the physical channel where the data is located, and the index of the time-domain resource unit of the time-domain resource occupied by the physical channel where the data is located, etc.

[0239] The following example illustrates how to determine the end position of control information. The end position can include the end position in the time domain, i.e., the end time of the control channel.

[0240] In some embodiments, the end position of the control information satisfies one or more of the following: the end position is marked by the postamble of the control information; the end position is determined by the size of the control information (i.e., the data size of the control information); the end position is marked by the preamble of the data. For example, the end position of the R2D physical layer control information may satisfy one or more of the following: the end position is marked by the postamble of the R2D physical layer control information; the end position is determined based on the size of the R2D physical layer control information; the end position is marked by the preamble of the R2D data.

[0241] One approach is to add a postcode after the control message ends to indicate the end of the control message. Figure 12B An example of a postcode is shown. Figure 12B As shown, in the control information ( Figure 12B After representing L1 control information, a postcode was added (Figure 12B a R2D trailer.

[0242] The trailer can reuse a R2D trailer defined in the related art, for example. For example, the trailer can include "1111". The trailer can be a trailer defined for control information, for example. For example, the trailer can include "11110011", and the like.

[0243] In some embodiments, the trailer can have multiple sequences (i.e., multiple candidate sequences). The trailer actually used for ending the control information can be one of the multiple sequences. For example, the trailer actually used can be indicated by the second device. Exemplarily, the second device can indicate the sequence corresponding to the trailer for ending the control information by means of a bitmap. Exemplarily, the second device can indicate one of the N sequences by means of N bits, for example, to indicate the index of the trailer. Wherein, N is a positive integer.

[0244] As an implementation manner, in the case that the control information and the data are carried in the same physical channel, the preamble before the data can be used to indicate the ending position of the control information.

[0245] As an implementation manner, the ending position of the control information can be determined according to the size of the control information.

[0246] In some embodiments, the size of the control information is fixed. Exemplarily, the size of the control information can be a pre-defined fixed value. In this case, the ending position of the control information can be determined according to the fixed size of the control information.

[0247] In some embodiments, the size of the control information can be indicated by physical layer signaling. For example, the size of the control information can be indicated by the physical layer signaling in the first physical channel. The physical layer signaling can be before the control information. For example, the physical layer signaling can be located at the very beginning of the first physical channel. Exemplarily, the physical layer signaling can be before or after the preamble. The physical layer signaling can occupy M bits. Wherein, M is a positive integer.

[0248] For example, the size of the control information can belong to multiple candidate sizes. The physical layer signaling can indicate one of the multiple candidate sizes. In this case, if the candidate sizes of the control information have N values, the physical layer signaling contains M bits to indicate which value the size of the control information is, for example, to indicate the index of the size.

[0249] ​​For example, the physical layer signaling can indicate a value corresponding to the size of the control information. Illustratively, the size of the control information is variable. In other words, the size of the control information can be any value as required. In this case, the control layer signaling can directly indicate a value corresponding to the size of the control information. For example, the control information includes 32 bits of information, and the physical layer signaling can use 5 bits to indicate the size of the control information, and the value of the 5 bits can be 32.

[0250] By determining the end position of the control information through the above embodiment, the first device can be prevented from ending the reception of the control information too early, so that the first device can be prevented from receiving incomplete control information. Alternatively, the first device can be prevented from continuing to receive the control information after the end of the control information, so that the first device can be prevented from wasting energy due to the erroneous reception of the control information. In addition, in the case where the control information and the data are multiplexed in the same physical channel, by explicitly determining the end position of the control information, the problem of abnormal data reception caused by the ambiguity of the end position of the control information can be avoided. In addition, the problem of abnormal data reception caused by the ambiguity of the end position of the control information can be avoided.

[0251] It should be noted that, in some embodiments, the R2D control information and the R2D data are transmitted in the same channel, and the R2D control information and the R2D data are independently encoded, or the R2D control information and the R2D data are jointly encoded.

[0252] The method embodiments of the present application are described in detail above, and the device embodiments of the present application are described in detail below. It should be understood that the description of the method embodiments corresponds to the description of the device embodiments, and therefore, the parts not described in detail can be referred to the description of the method embodiments.

[0253] Figure 13 FIG. 13 is a schematic structural diagram of a communication device 1300 according to an embodiment of the present application. The communication device 1300 is a first device. The communication device 1300 includes a first receiving unit 1310 and an execution unit 1320.

[0254] The first receiving unit 1310 is configured to receive first information sent by a second device, and the execution unit 1320 is configured to perform a first operation according to the first information. The first operation includes determining / listening to information carried by a first physical channel to determine whether the information includes R2D physical layer control information, and / or receiving the R2D physical layer control information.

[0255] In some embodiments, the first information includes one or more of the following: preamble information; scrambling information; message type information; cyclic redundancy check (CRC) information; and frequency domain resource information.

[0256] In some embodiments, the preamble information comprises one or more of: a type of the preamble sequence; an orthogonality of the preamble sequence; a length of the preamble sequence.

[0257] In some embodiments, the scrambling information comprises one or more of: information used for scrambling; whether scrambled.

[0258] In some embodiments, the information used for scrambling comprises one or more of: a length of the scrambling sequence; a type of the scrambling sequence; an orthogonality of the scrambling sequence; whether the scrambling sequence is generated based on the first sequence.

[0259] In some embodiments, the first sequence comprises one or more of: information related to an identity of the first device; an m-sequence; a Golay sequence; a Gold sequence.

[0260] In some embodiments, the information related to the identity of the first device comprises one or more of: part or all bits generated when sending the message 1; part or all bits in an Electronic Product Code (EPC) corresponding to the first device.

[0261] In some embodiments, the message type information is indicated by one or more of: a specific encoding value; N bits of indication information, N being a positive integer.

[0262] In some embodiments, the message type information is physical layer information.

[0263] In some embodiments, the message type information is located at a front part of the first physical channel; or, the message type information is located after a preamble.

[0264] In some embodiments, the CRC information comprises one or more of: a length of the CRC check code; a generating formula of the CRC check code; initialization information of the CRC check code.

[0265] In some embodiments, the frequency domain resource information comprises one or more of: a bandwidth size occupied by the first physical channel; a starting position of the frequency domain resource occupied by the first physical channel; an ending position of the frequency domain resource occupied by the first physical channel; a guard band corresponding to the first physical channel; a frequency domain offset of the first physical channel; a frequency domain resource unit index corresponding to the first physical channel.

[0266] In some embodiments, the communication device 1300 is further configured to determine a second physical channel according to the R2D physical layer control information, the second physical channel being used to carry R2D data or D2R data.

[0267] In some embodiments, the second physical channel is a different type of physical channel from the first physical channel; or, the second physical channel is a same type of physical channel from the first physical channel.

[0268] In some embodiments, the first physical channel and the second physical channel are continuous in time domain.

[0269] In some embodiments, the first physical channel and the second physical channel are discontinuous in time domain.

[0270] In some embodiments, the first physical channel comprises PRDCH.

[0271] In some embodiments, the first physical channel is further used to carry R2D data or D2R data.

[0272] In some embodiments, the communication device is further configured to: receive the R2D data according to the R2D physical layer control information; and / or, transmit the D2R data according to the R2D physical layer control information.

[0273] In some embodiments, an ending position of the R2D physical layer control information satisfies one or more of the following: the ending position is marked by a post-amble of the R2D physical layer control information; the ending position is determined based on a size of the R2D physical layer control information; the ending position is marked by a pre-amble of R2D data.

[0274] In some embodiments, a size of the R2D physical layer control information is fixed; or, the size of the R2D physical layer control information is indicated by physical layer signaling.

[0275] In some embodiments, the R2D physical layer control information comprises one or more of the following: FEC coding rate information; R2D chip duration information; R2D repetition transmission related information; TBS information; R2D data time domain resource related information; R2D data frequency domain resource related information; R2D data coding modulation related information; D2R chip duration information; D2R repetition transmission related information; D2R data time resource related information; D2R data frequency domain related information; D2R power control related information.

[0276] In optional embodiments, the first receiving unit 1310 can be a transceiver 1530. The execution unit can be a processor 1510. The communication device 1300 can further include a processor 1510 and a memory 1520, as shown in Figure 15

[0277] Figure 14 ​Fig. 7 is a schematic structural diagram of another communication device 1400 provided by an embodiment of the present application. The communication device 1400 is a second device. The communication device 1400 comprises a first sending unit 1410.

[0278] The first sending unit 1410 is configured to send first information to a first device; wherein the first information is used by the first device to perform a first operation; and the first operation comprises: determining / listening to information carried by a first physical channel, wherein the information comprises R2D physical layer control information; and / or receiving the R2D physical layer control information.

[0279] In some embodiments, the first information comprises one or more of the following: preamble information; scrambling information; message type information; CRC information; frequency domain resource information.

[0280] In some embodiments, the preamble information comprises one or more of the following: type of preamble sequence; orthogonality of preamble sequence; length of preamble sequence.

[0281] In some embodiments, the scrambling information comprises one or more of the following: information used for scrambling; whether scrambling is used.

[0282] In some embodiments, the information used for scrambling comprises one or more of the following: length of scrambling sequence; type of scrambling sequence; orthogonality of scrambling sequence; whether the scrambling sequence is generated based on a first sequence.

[0283] In some embodiments, the first sequence comprises one or more of the following: information related to an identifier of the first device; m-sequence; Golay sequence; Gold sequence.

[0284] In some embodiments, the information related to the identifier of the first device comprises one or more of the following: part or all of bits generated when sending a message 1; part or all of bits in an Electronic Product Code (EPC) corresponding to the first device.

[0285] In some embodiments, the message type information is indicated by one or more of the following: a specific encoding value; N-bit indication information, where N is a positive integer.

[0286] In some embodiments, the message type information is physical layer information.

[0287] In some embodiments, the message type information is located at a front part of the first physical channel; or the message type information is located after a preamble.

[0288] In some embodiments, the CRC information comprises one or more of: a length of the CRC check code; a generation formula of the CRC check code; initialization information of the CRC check code.

[0289] In some embodiments, the frequency domain resource information comprises one or more of: a bandwidth size occupied by the first physical channel; a starting position of the frequency domain resource occupied by the first physical channel; an ending position of the frequency domain resource occupied by the first physical channel; a guard band corresponding to the first physical channel; a frequency domain offset of the first physical channel; a frequency domain resource unit index corresponding to the first physical channel.

[0290] In some embodiments, the R2D physical layer control information is used to determine a second physical channel, and the second physical channel is used to carry R2D data or D2R data.

[0291] In some embodiments, the second physical channel is a physical channel of a different type from the first physical channel; or, the second physical channel is a physical channel of the same type as the first physical channel.

[0292] In some embodiments, the first physical channel and the second physical channel are continuous in the time domain.

[0293] In some embodiments, the first physical channel and the second physical channel are discontinuous in the time domain.

[0294] In some embodiments, the first physical channel comprises a PRDCH.

[0295] In some embodiments, the first physical channel is also used to carry R2D data or D2R data.

[0296] In some embodiments, the R2D physical layer control information is used for the first device to receive the R2D data; and / or, the R2D physical layer control information is used for the first device to send the D2R data.

[0297] In some embodiments, an ending position of the R2D physical layer control information satisfies one or more of: the ending position is marked by a post-amble of the R2D physical layer control information; the ending position is determined based on a size of the R2D physical layer control information; the ending position is marked by a pre-amble of R2D data.

[0298] In some embodiments, the size of the R2D physical layer control information is fixed; or, the size of the R2D physical layer control information is indicated by physical layer signaling.

[0299] In some embodiments, the R2D physical layer control information comprises one or more of: forward error correction (FEC) coding rate information; R2D chip duration information; R2D repetition transmission related information; transport block size (TBS) information; R2D data time domain resource related information; R2D data frequency domain resource related information; R2D data coding modulation related information; D2R chip duration information; D2R repetition transmission related information; D2R data time resource related information; D2R data frequency domain related information; D2R power control related information.

[0300] In optional embodiments, the first sending unit 1410 can be a transceiver 1530. The communication device 1400 can further include a processor 1510 and a memory 1520, as shown in Figure 15

[0301] Figure 15 is a schematic structural diagram of an apparatus for communication according to an embodiment of the present application. Figure 15 Figure 15 The dashed line in the figure indicates that the unit or module is optional. The apparatus 1500 can be used to implement the methods described in the foregoing method embodiments. The apparatus 1500 can be a chip, a terminal device, or a network device.

[0302] The apparatus 1500 can include one or more processors 1510. The processor 1510 can support the apparatus 1500 to implement the methods described in the foregoing method embodiments. The processor 1510 can be a general purpose processor or a dedicated processor. For example, the processor can be a central processing unit (CPU). Alternatively, the processor can also be other general purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic, discrete hardware components, etc. The general purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0303] The apparatus 1500 can further include one or more memories 1520. The memory 1520 stores programs, which can be executed by the processor 1510, so that the processor 1510 performs the methods described in the foregoing method embodiments. The memory 1520 can be independent of the processor 1510 or integrated in the processor 1510.

[0304] ​The apparatus 1500 can further include a transceiver 1530. The processor 1510 can communicate with other devices or chips through the transceiver 1530. For example, the processor 1510 can perform data transceiving with other devices or chips through the transceiver 1530.

[0305] The embodiment of the present application further provides a computer readable storage medium for storing a program. The computer readable storage medium can be applied to the terminal or the network device provided by the embodiment of the present application, and the program causes the computer to execute the method performed by the terminal or the network device in the various embodiments of the present application.

[0306] The embodiment of the present application further provides a computer program product. The computer program product includes a program. The computer program product can be applied to the terminal or the network device provided by the embodiment of the present application, and the program causes the computer to execute the method performed by the terminal or the network device in the various embodiments of the present application.

[0307] The embodiment of the present application further provides a computer program. The computer program can be applied to the terminal or the network device provided by the embodiment of the present application, and the computer program causes the computer to execute the method performed by the terminal or the network device in the various embodiments of the present application.

[0308] It should be understood that the terms "system" and "network" can be used interchangeably in the present application. In addition, the terms used in the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. The terms "first", "second", "third", and "fourth" and the like in the specification and claims of the present application and the drawings are used to distinguish different objects, and are not used to describe a particular order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0309] In the embodiments of the present application, the "indication" mentioned can be direct indication, or indirect indication, or can be an indication with an associated relationship. For example, A indicates B, which can mean that B can be obtained by A; or A indirectly indicates B, for example, A indicates C, and B can be obtained by C; or A and B have an associated relationship.

[0310] In the embodiments of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean that B is determined only according to A, but B can also be determined according to A and / or other information.

[0311] In the embodiments of the present application, the term "corresponding" can mean that there is a direct or indirect corresponding relationship between the two, or can mean that there is an associated relationship between the two, or can mean an indication and being indicated, configuration and being configured, and the like.

[0312] In embodiments of the present application, "predefined" or "preconfigured" can be implemented by pre-storing corresponding codes, tables or other means for indicating relevant information in devices (e.g., including terminal devices and network devices), and the present application does not limit the specific implementation manner thereof. For example, predefinition can refer to definition in a protocol.

[0313] In embodiments of the present application, the "protocol" can refer to a standard protocol in the communication field, which can include, for example, an LTE protocol, an NR protocol and a related protocol applied in a future communication system, and the present application does not limit this.

[0314] In embodiments of the present application, the term "and / or" merely describes an association relationship of associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this document generally represents an "or" relationship between the front and rear associated objects.

[0315] In embodiments of the present application, "including" can mean direct inclusion or indirect inclusion. Alternatively, "including" mentioned in embodiments of the present application can be replaced by "indicating" or "used for determining". For example, A includes B can be replaced by A indicating B or A used for determining B.

[0316] In various embodiments of the present application, the size of the serial number of the above processes does not mean the order of execution, and the execution order of the processes should be determined according to their functions and inherent logic, and should not constitute any limitation on the implementation process of embodiments of the present application.

[0317] In several embodiments provided by the present application, it should be understood that the disclosed system, device and method can be implemented by other manners. For example, the above-described device embodiments are only schematic, for example, the division of the units is only a logical function division, and actual implementation can be in another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed mutual objects can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0318] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e., they can be located in one place or distributed on a plurality of network units. According to actual needs, part or all of the units can be selected to achieve the purpose of the embodiments of the present application.

[0319] In addition, each function unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit.

[0320] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) manner. The computer readable storage medium can be any available medium that can be read by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available media can be magnetic media (such as floppy disk, hard disk, magnetic tape), optical media (such as digital video disc (DVD)) or semiconductor media (such as solid state disk (SSD)) and the like.

[0321] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A wireless communication method, characterized in that, include: The first device receives the first information sent by the second device; The first device performs the first operation based on the first information; The first operation includes: determining / monitoring the information carried by the first physical channel, including reader-to-device R2D physical layer control information; and / or receiving the R2D physical layer control information.

2. The method according to claim 1, characterized in that, The first information includes one or more of the following: Preamble information; Scrambling information; Message type information; Cyclic Redundancy Check (CRC) information; Frequency domain resource information.

3. The method according to claim 2, characterized in that, The preamble information includes one or more of the following: Types of preamble sequences; Orthogonality of preamble sequences; The length of the preamble sequence.

4. The method according to claim 2 or 3, characterized in that, The scrambling information includes one or more of the following: The information used for scrambling; Whether it is being scrambled.

5. The method according to claim 4, characterized in that, The information used in the scrambling includes one or more of the following: The length of the scrambling sequence; Types of scrambling sequences; Orthogonality of scrambled sequences; Whether the scrambling sequence is generated based on the first sequence.

6. The method according to claim 4 or 5, characterized in that, The first sequence includes one or more of the following: Information related to the identifier of the first device; m-sequence; Golay sequence; Gold sequence.

7. The method according to claim 6, characterized in that, The information related to the identifier of the first device includes one or more of the following: Some or all of the bits generated when sending message 1; Some or all of the bits in the Electronic Product Code (EPC) corresponding to the first device.

8. The method according to any one of claims 2-7, characterized in that, The message type information is indicated by one or more of the following: Specific encoded values; The information consists of N bits, where N is a positive integer.

9. The method according to any one of claims 2-8, characterized in that, The message type information is physical layer information.

10. The method according to any one of claims 2-9, characterized in that, The message type information is located at the beginning of the first physical channel; or... The message type information is located after the preamble.

11. The method according to any one of claims 2-10, characterized in that, The CRC information includes one or more of the following: The length of the CRC checksum; The formula for generating CRC checksums; Initialization information for the CRC checksum.

12. The method according to any one of claims 2-11, characterized in that, The frequency domain resource information includes one or more of the following: The bandwidth occupied by the first physical channel; The starting position of the frequency domain resources occupied by the first physical channel; The end position of the frequency domain resources occupied by the first physical channel; The guard band corresponding to the first physical channel; The frequency domain offset of the first physical channel; The frequency domain resource unit index corresponding to the first physical channel.

13. The method according to any one of claims 1-12, characterized in that, The method further includes: The first device determines a second physical channel based on the R2D physical layer control information, and the second physical channel is used to carry R2D data or D2R data.

14. The method according to claim 13, characterized in that, The second physical channel is a physical channel of a different type from the first physical channel; or, the second physical channel is a physical channel of the same type as the first physical channel.

15. The method according to claim 14, characterized in that, The first physical channel and the second physical channel are continuous in the time domain.

16. The method according to claim 14, characterized in that, The first physical channel and the second physical channel are discontinuous in the time domain.

17. The method according to any one of claims 1-16, characterized in that, The first physical channel includes PRDCH.

18. The method according to any one of claims 1-16, characterized in that, The first physical channel is also used to carry R2D data or D2R data.

19. The method according to claim 18, characterized in that, The method further includes: The first device receives the R2D data according to the R2D physical layer control information; and / or, The first device sends the D2R data according to the R2D physical layer control information.

20. The method according to any one of claims 1-19, characterized in that, The end position of the R2D physical layer control information satisfies one or more of the following: The end position is marked by the postcode of the R2D physical layer control information; The ending position is determined based on the magnitude of the R2D physical layer control information; The end position is marked by the preamble of the R2D data.

21. The method according to claim 20, characterized in that, The size of the R2D physical layer control information is fixed; or, The size of the R2D physical layer control information is indicated by physical layer signaling.

22. The method according to any one of claims 1-21, characterized in that, The R2D physical layer control information includes one or more of the following: FEC coding rate information; R2D chip duration information; R2D repeatedly transmits related information; TBS information; Information related to the time-domain resources of R2D data; Information related to R2D data frequency domain resources; Information related to R2D data encoding and modulation; D2R chip duration information; D2R repeatedly transmits related information; D2R data contains resource-related information; Information related to the frequency domain of D2R data; Information related to D2R power control.

23. A wireless communication method, characterized in that, include: The second device sends the first information to the first device; Wherein, the first information is used by the first device to perform a first operation; the first operation includes: determining / listening to the information carried by the first physical channel, including R2D physical layer control information; and / or, receiving the R2D physical layer control information.

24. The method according to claim 23, characterized in that, The first information includes one or more of the following: Preamble information; Scrambling information; Message type information; CRC information; Frequency domain resource information.

25. The method according to claim 24, characterized in that, The preamble information includes one or more of the following: Types of preamble sequences; Orthogonality of preamble sequences; The length of the preamble sequence.

26. The method according to claim 24 or 25, characterized in that, The scrambling information includes one or more of the following: The information used for scrambling; Whether it is being scrambled.

27. The method according to claim 26, characterized in that, The information used in the scrambling includes one or more of the following: The length of the scrambling sequence; Types of scrambling sequences; Orthogonality of scrambled sequences; Whether the scrambling sequence is generated based on the first sequence.

28. The method according to claim 26 or 27, characterized in that, The first sequence includes one or more of the following: Information related to the identifier of the first device; m-sequence; Golay sequence; Gold sequence.

29. The method according to claim 28, characterized in that, The information related to the identifier of the first device includes one or more of the following: Some or all of the bits generated when sending message 1; Some or all of the bits in the Electronic Product Code (EPC) corresponding to the first device.

30. The method according to any one of claims 24-29, characterized in that, The message type information is indicated by one or more of the following: Specific encoded values; The information consists of N bits, where N is a positive integer.

31. The method according to any one of claims 24-30, characterized in that, The message type information is physical layer information.

32. The method according to any one of claims 24-31, characterized in that, The message type information is located at the beginning of the first physical channel; or... The message type information is located after the preamble.

33. The method according to any one of claims 24-32, characterized in that, The CRC information includes one or more of the following: The length of the CRC checksum; The formula for generating CRC checksums; Initialization information for the CRC checksum.

34. The method according to any one of claims 24-33, characterized in that, The frequency domain resource information includes one or more of the following: The bandwidth occupied by the first physical channel; The starting position of the frequency domain resources occupied by the first physical channel; The end position of the frequency domain resources occupied by the first physical channel; The guard band corresponding to the first physical channel; The frequency domain offset of the first physical channel; The frequency domain resource unit index corresponding to the first physical channel.

35. The method according to any one of claims 23-34, characterized in that, The R2D physical layer control information is used to determine the second physical channel, which is used to carry R2D data or D2R data.

36. The method according to claim 35, characterized in that, The second physical channel is a physical channel of a different type from the first physical channel; or, the second physical channel is a physical channel of the same type as the first physical channel.

37. The method according to claim 36, characterized in that, The first physical channel and the second physical channel are continuous in the time domain.

38. The method according to claim 36, characterized in that, The first physical channel and the second physical channel are discontinuous in the time domain.

39. The method according to any one of claims 23-38, characterized in that, The first physical channel includes PRDCH.

40. The method according to any one of claims 23-38, characterized in that, The first physical channel is also used to carry R2D data or D2R data.

41. The method according to claim 40, characterized in that, The R2D physical layer control information is used by the first device to receive the R2D data; and / or, the R2D physical layer control information is used by the first device to send the D2R data.

42. The method according to any one of claims 23-41, characterized in that, The end position of the R2D physical layer control information satisfies one or more of the following: The end position is marked by the postcode of the R2D physical layer control information; The ending position is determined based on the magnitude of the R2D physical layer control information; The end position is marked by the preamble of the R2D data.

43. The method according to claim 42, characterized in that, The size of the R2D physical layer control information is fixed; or, The size of the R2D physical layer control information is indicated by physical layer signaling.

44. The method according to any one of claims 23-43, characterized in that, The R2D physical layer control information includes one or more of the following: Forward Error Correction (FEC) coding rate information; R2D chip duration information; R2D repeatedly transmits related information; Transport Block Size (TBS) information; Information related to the time-domain resources of R2D data; Information related to R2D data frequency domain resources; Information related to R2D data encoding and modulation; D2R chip duration information; D2R repeatedly transmits related information; D2R data contains resource-related information; Information related to the frequency domain of D2R data; Information related to D2R power control.

45. A communication device, characterized in that, The communication device is a first device, and the communication device includes: The first receiving unit is used to receive the first information sent by the second device; An execution unit is configured to perform a first operation based on the first information; The first operation includes: determining / monitoring the information carried by the first physical channel, including reader-to-device R2D physical layer control information; and / or receiving the R2D physical layer control information.

46. ​​The communication device according to claim 45, characterized in that, The first information includes one or more of the following: Preamble information; Scrambling information; Message type information; Cyclic Redundancy Check (CRC) information; Frequency domain resource information.

47. The communication device according to claim 46, characterized in that, The preamble information includes one or more of the following: Types of preamble sequences; Orthogonality of preamble sequences; The length of the preamble sequence.

48. The communication device according to claim 46 or 47, characterized in that, The scrambling information includes one or more of the following: The information used for scrambling; Whether it is being scrambled.

49. The communication device according to claim 48, characterized in that, The information used in the scrambling includes one or more of the following: The length of the scrambling sequence; Types of scrambling sequences; Orthogonality of scrambled sequences; Whether the scrambling sequence is generated based on the first sequence.

50. The communication device according to claim 48 or 49, characterized in that, The first sequence includes one or more of the following: Information related to the identifier of the first device; m-sequence; Golay sequence; Gold sequence.

51. The communication device according to claim 50, characterized in that, The information related to the identifier of the first device includes one or more of the following: Some or all of the bits generated when sending message 1; Some or all of the bits in the Electronic Product Code (EPC) corresponding to the first device.

52. The communication device according to any one of claims 46-51, characterized in that, The message type information is indicated by one or more of the following: Specific encoded values; The information consists of N bits, where N is a positive integer.

53. The communication device according to any one of claims 46-52, characterized in that, The message type information is physical layer information.

54. The communication device according to any one of claims 46-53, characterized in that, The message type information is located at the beginning of the first physical channel; or... The message type information is located after the preamble.

55. The communication device according to any one of claims 46-54, characterized in that, The CRC information includes one or more of the following: The length of the CRC checksum; The formula for generating CRC checksums; Initialization information for the CRC checksum.

56. The communication device according to any one of claims 46-55, characterized in that, The frequency domain resource information includes one or more of the following: The bandwidth occupied by the first physical channel; The starting position of the frequency domain resources occupied by the first physical channel; The end position of the frequency domain resources occupied by the first physical channel; The guard band corresponding to the first physical channel; The frequency domain offset of the first physical channel; The frequency domain resource unit index corresponding to the first physical channel.

57. The communication device according to any one of claims 45-56, characterized in that, The communication device is also used for: The second physical channel is determined based on the R2D physical layer control information, and the second physical channel is used to carry R2D data or D2R data.

58. The communication device according to claim 57, characterized in that, The second physical channel is a physical channel of a different type from the first physical channel; or, the second physical channel is a physical channel of the same type as the first physical channel.

59. The communication device according to claim 58, characterized in that, The first physical channel and the second physical channel are continuous in the time domain.

60. The communication device according to claim 58, characterized in that, The first physical channel and the second physical channel are discontinuous in the time domain.

61. The communication device according to any one of claims 45-60, characterized in that, The first physical channel includes PRDCH.

62. The communication device according to any one of claims 45-60, characterized in that, The first physical channel is also used to carry R2D data or D2R data.

63. The communication device according to claim 62, characterized in that, The communication device is also used for: Receive the R2D data according to the R2D physical layer control information; and / or, The D2R data is sent according to the R2D physical layer control information.

64. The communication device according to any one of claims 45-63, characterized in that, The end position of the R2D physical layer control information satisfies one or more of the following: The end position is marked by the postcode of the R2D physical layer control information; The ending position is determined based on the magnitude of the R2D physical layer control information; The end position is marked by the preamble of the R2D data.

65. The communication device according to claim 64, characterized in that, The size of the R2D physical layer control information is fixed; or, The size of the R2D physical layer control information is indicated by physical layer signaling.

66. The communication device according to any one of claims 45-65, characterized in that, The R2D physical layer control information includes one or more of the following: FEC coding rate information; R2D chip duration information; R2D repeatedly transmits related information; TBS information; Information related to the time-domain resources of R2D data; Information related to R2D data frequency domain resources; Information related to R2D data encoding and modulation; D2R chip duration information; D2R repeatedly transmits related information; D2R data contains resource-related information; Information related to the frequency domain of D2R data; Information related to D2R power control.

67. A communication device, characterized in that, The communication device is a second device, and the communication device includes: The first sending unit is used to send first information to the first device; Wherein, the first information is used by the first device to perform a first operation; the first operation includes: determining / listening to the information carried by the first physical channel, including R2D physical layer control information; and / or, receiving the R2D physical layer control information.

68. The communication device according to claim 67, characterized in that, The first information includes one or more of the following: Preamble information; Scrambling information; Message type information; CRC information; Frequency domain resource information.

69. The communication device according to claim 68, characterized in that, The preamble information includes one or more of the following: Types of preamble sequences; Orthogonality of preamble sequences; The length of the preamble sequence.

70. The communication device according to claim 68 or 69, characterized in that, The scrambling information includes one or more of the following: The information used for scrambling; Whether it is being scrambled.

71. The communication device according to claim 70, characterized in that, The information used in the scrambling includes one or more of the following: The length of the scrambling sequence; Types of scrambling sequences; Orthogonality of scrambled sequences; Whether the scrambling sequence is generated based on the first sequence.

72. The communication device according to claim 70 or 71, characterized in that, The first sequence includes one or more of the following: Information related to the identifier of the first device; m-sequence; Golay sequence; Gold sequence.

73. The communication device according to claim 72, characterized in that, The information related to the identifier of the first device includes one or more of the following: Some or all of the bits generated when sending message 1; Some or all of the bits in the Electronic Product Code (EPC) corresponding to the first device.

74. The communication device according to any one of claims 68-73, characterized in that, The message type information is indicated by one or more of the following: Specific encoded values; The information consists of N bits, where N is a positive integer.

75. The communication device according to any one of claims 68-74, characterized in that, The message type information is physical layer information.

76. The communication device according to any one of claims 68-75, characterized in that, The message type information is located at the beginning of the first physical channel; or... The message type information is located after the preamble.

77. The communication device according to any one of claims 68-76, characterized in that, The CRC information includes one or more of the following: The length of the CRC checksum; The formula for generating CRC checksums; Initialization information for the CRC checksum.

78. The communication device according to any one of claims 68-77, characterized in that, The frequency domain resource information includes one or more of the following: The bandwidth occupied by the first physical channel; The starting position of the frequency domain resources occupied by the first physical channel; The end position of the frequency domain resources occupied by the first physical channel; The guard band corresponding to the first physical channel; The frequency domain offset of the first physical channel; The frequency domain resource unit index corresponding to the first physical channel.

79. The communication device according to any one of claims 67-78, characterized in that, The R2D physical layer control information is used to determine the second physical channel, which is used to carry R2D data or D2R data.

80. The communication device according to claim 79, characterized in that, The second physical channel is a physical channel of a different type from the first physical channel; or, the second physical channel is a physical channel of the same type as the first physical channel.

81. The communication device according to claim 80, characterized in that, The first physical channel and the second physical channel are continuous in the time domain.

82. The communication device according to claim 80, characterized in that, The first physical channel and the second physical channel are discontinuous in the time domain.

83. The communication device according to any one of claims 67-82, characterized in that, The first physical channel includes PRDCH.

84. The communication device according to any one of claims 67-82, characterized in that, The first physical channel is also used to carry R2D data or D2R data.

85. The communication device according to claim 84, characterized in that, The R2D physical layer control information is used by the first device to receive the R2D data; and / or, the R2D physical layer control information is used by the first device to send the D2R data.

86. The communication device according to any one of claims 67-85, characterized in that, The end position of the R2D physical layer control information satisfies one or more of the following: The end position is marked by the postcode of the R2D physical layer control information; The ending position is determined based on the magnitude of the R2D physical layer control information; The end position is marked by the preamble of the R2D data.

87. The communication device according to claim 86, characterized in that, The size of the R2D physical layer control information is fixed; or, The size of the R2D physical layer control information is indicated by physical layer signaling.

88. The communication device according to any one of claims 67-87, characterized in that, The R2D physical layer control information includes one or more of the following: Forward Error Correction (FEC) coding rate information; R2D chip duration information; R2D repeatedly transmits related information; Transport Block Size (TBS) information; Information related to the time-domain resources of R2D data; Information related to R2D data frequency domain resources; Information related to R2D data encoding and modulation; D2R chip duration information; D2R repeatedly transmits related information; D2R data contains resource-related information; Information related to the frequency domain of D2R data; Information related to D2R power control.

89. A communication device, characterized in that, The device includes a transceiver, a memory, and a processor. The memory stores a program, and the processor invokes the program in the memory and controls the transceiver to receive or transmit signals so that the communication device performs the method as described in any one of claims 1-44.

90. An apparatus, characterized in that, Includes a processor for calling a program from memory to cause the device to perform the method as described in any one of claims 1-44.

91. A chip, characterized in that, Includes a processor for calling a program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 1-44.

92. A computer-readable storage medium, characterized in that, It contains a program that causes a computer to perform the method as described in any one of claims 1-44.

93. A computer program product, characterized in that, Includes a program that causes a computer to perform the method as described in any one of claims 1-44.

94. A computer program, characterized in that, The computer program causes the computer to perform the method as described in any one of claims 1-44.

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