[go: up one dir, main page]

WO2025208335A1 - Procédé et appareil de transmission d'informations, et dispositif et support de stockage - Google Patents

Procédé et appareil de transmission d'informations, et dispositif et support de stockage

Info

Publication number
WO2025208335A1
WO2025208335A1 PCT/CN2024/085527 CN2024085527W WO2025208335A1 WO 2025208335 A1 WO2025208335 A1 WO 2025208335A1 CN 2024085527 W CN2024085527 W CN 2024085527W WO 2025208335 A1 WO2025208335 A1 WO 2025208335A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
additional transmission
tag
transmission resources
value
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/085527
Other languages
English (en)
Chinese (zh)
Inventor
丁伊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to PCT/CN2024/085527 priority Critical patent/WO2025208335A1/fr
Publication of WO2025208335A1 publication Critical patent/WO2025208335A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the embodiments of the present application relate to the field of communication technology, and in particular to an information transmission method, apparatus, device, and storage medium.
  • the zero-power Internet of Things also known as ambient power-enabled IoT, or Ambient IoT for short, is an IoT device that uses various ambient energies (such as radio frequency energy, light energy, solar energy, thermal energy, mechanical energy, and other ambient energies) to power itself.
  • ambient energies such as radio frequency energy, light energy, solar energy, thermal energy, mechanical energy, and other ambient energies
  • the embodiments of the present application provide an information transmission method, apparatus, device, and storage medium.
  • the technical solutions provided by the embodiments of the present application are as follows:
  • a method for transmitting information is provided.
  • the method is performed by a first device, and the method includes:
  • the first information is sent using additional transmission resources, where the additional transmission resources are indicated by the second device.
  • a method for information transmission is provided, the method being performed by a second device, the method including:
  • First information sent by a first device using additional transmission resources is received, where the additional transmission resources are indicated by the second device.
  • an information transmission device comprising:
  • the sending module is configured to send the first information using additional transmission resources, where the additional transmission resources are indicated by the second device.
  • an information transmission device comprising:
  • the receiving module is configured to receive first information sent by a first device using additional transmission resources, where the additional transmission resources are indicated by a second device.
  • a computer-readable storage medium in which a computer program is stored.
  • the computer program is used to be executed by a processor to implement the above-mentioned information transmission method on the first device side or the second device side.
  • NTNs generally use satellite communications to provide communication services to terrestrial users.
  • NTN systems include NR-NTN and IoT-NTN systems, and may include other NTN systems in the future.
  • FIG1 shows a schematic diagram of a network architecture 100 provided by an embodiment of the present application.
  • the network architecture 100 may include: a terminal device 10 , an access network device 20 , and a core network element 30 .
  • the terminal device 10 may refer to a UE (User Equipment), an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device, a user agent, or a user apparatus.
  • UE User Equipment
  • the terminal device 10 may also be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol) phone, a WLL (Wireless Local Loop) station, a PDA (Personal Digital Assistant), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5GS (5th Generation System) or a terminal device in a future evolved PLMN (Public Land Mobile Network), etc., and the embodiments of the present application are not limited thereto.
  • the above-mentioned devices are collectively referred to as terminal devices.
  • the terminal device may also be referred to as a terminal or UE for short, and those skilled in the art will understand its meaning.
  • the access network device 20 is a device deployed in the access network to provide wireless communication functions for the terminal device 10.
  • the access network device 20 may include various forms of macro base stations, micro base stations, relay stations, access points, etc.
  • the names of devices with access network device functions may be different.
  • gNodeB or gNB With the evolution of communication technology, the name "access network device" may change.
  • access network devices For the convenience of description, in the embodiments of the present application, the above-mentioned devices that provide wireless communication functions for the terminal device 10 are collectively referred to as access network devices.
  • a communication relationship can be established between the terminal device 10 and the core network network element 30 through the access network device 20.
  • the access network device 20 may be an Evolved Universal Terrestrial Radio Access Network (EUTRAN) or one or more eNodeBs in the EUTRAN.
  • EUTRAN Evolved Universal Terrestrial Radio Access Network
  • the access network device 20 may be a Radio Access Network (RAN) or one or more gNBs in the RAN.
  • RAN Radio Access Network
  • the "network device" refers to the access network device 20, such as a base station.
  • Core network elements 30 are deployed in the core network. Their primary functions are to provide user connectivity, user management, and service bearer services. They act as the bearer network interface to external networks.
  • core network elements in a 5G NR system may include elements such as the Access and Mobility Management Function (AMF), the User Plane Function (UPF), and the Session Management Function (SMF).
  • AMF Access and Mobility Management Function
  • UPF User Plane Function
  • SMF Session Management Function
  • the access network device 20 and the core network element 30 communicate with each other via an air interface technology, such as the NG interface in a 5G NR system.
  • the access network device 20 and the terminal device 10 communicate with each other via an air interface technology, such as the Uu interface.
  • the "5G NR system” in the embodiments of the present application may also be referred to as a 5G system or an NR system, but those skilled in the art will understand its meaning.
  • the technical solutions described in the embodiments of the present application may be applicable to LTE systems, 5G NR systems, and subsequent evolution systems of 5G NR systems (e.g., B5G (Beyond 5G) systems, 6G systems (6th Generation Systems, sixth generation mobile communication systems)), as well as other communication systems such as NB-IoT (Narrow Band Internet of Things) systems, and this application does not limit this.
  • B5G Beyond 5G
  • 6G systems 6th Generation Systems, sixth generation mobile communication systems
  • NB-IoT Narrow Band Internet of Things
  • a network device can provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) on a carrier used by the cell.
  • the cell can be a cell corresponding to a network device (for example, a base station), and the cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • Zero-power Internet of Things can also be called Ambient power enabled IoT, or Ambient IoT (environmental Internet of Things) for short. In some technical literature, it is also called passive IoT (passive Internet of Things).
  • Ambient IoT device refers to an IoT device that uses various environmental energies (such as wireless radio frequency energy, light energy, solar energy, thermal energy, mechanical energy, and other environmental energies) to drive itself. This type of device may have no energy storage capacity or a very limited energy storage capacity (such as using a capacitor with a capacity of tens of uF). Compared with existing IoT devices, Ambient IoT devices have many advantages such as no conventional battery, no maintenance, small size, low complexity and low cost, and a long life cycle.
  • Zero-power communication utilizes energy harvesting and backscatter communication technologies.
  • a zero-power communication network consists of network devices and zero-power devices, as shown in Figure 2. The network devices are used to send wireless power supply signals and downlink communication signals to the zero-power devices and to receive backscatter signals from them.
  • a basic zero-power device includes an energy harvesting module, a backscatter communication module, and a low-power computing module. Furthermore, the zero-power device may also include a memory or sensor to store basic information (such as item identification) or obtain sensor data such as ambient temperature and humidity.
  • the key technologies of zero-power communication mainly include radio frequency energy harvesting and backscatter communication.
  • the RF energy harvesting module uses the principle of electromagnetic induction to harvest electromagnetic wave energy from space, thereby obtaining the energy needed to operate zero-power devices. This energy is used to drive low-power demodulation and modulation modules, sensors, and memory readout. Therefore, zero-power devices do not require traditional batteries.
  • a zero-power communication terminal receives wireless signals sent by the network, modulates the wireless signals, loads the information to be sent, and radiates the modulated signals from the antenna.
  • This information transmission process is called backscatter communication.
  • Backscatter and load modulation functions are inseparable.
  • Load modulation adjusts and controls the circuit parameters of the zero-power device's oscillation circuit according to the rhythm of the data stream, causing parameters such as the impedance of the electronic tag to change accordingly, thereby completing the modulation process.
  • Load modulation technology mainly includes two methods: resistive load modulation and capacitive load modulation.
  • a resistor In resistive load modulation, a resistor is connected in parallel to the load, and the resistor is turned on or off based on the control of the binary data stream, as shown in Figure 5.
  • the on and off of the resistor causes the circuit voltage to change, thus realizing amplitude shift keying (ASK) modulation, that is, the amplitude of the backscattered signal of the zero-power device is adjusted to achieve signal modulation and transmission.
  • ASK amplitude shift keying
  • capacitive load modulation the circuit resonant frequency can be changed by switching the capacitor on and off, realizing frequency shift keying (FSK) modulation, that is, signal modulation and transmission are achieved by adjusting the operating frequency of the backscattered signal of the zero-power device.
  • FSK frequency shift keying
  • the zero-power device uses load modulation to modulate the incoming signal, thereby realizing the backscatter communication process. Therefore, the zero-power device has significant advantages:
  • the terminal does not actively transmit signals, so it does not require complex RF links, such as PA (Power Amplifier), RF filters, etc.
  • PA Power Amplifier
  • RF filters etc.
  • the terminal does not need to actively generate high-frequency signals, so it does not need a high-frequency crystal oscillator;
  • zero-power communication can be widely used in various industries, such as logistics for vertical industries, smart warehousing, smart agriculture, energy and electricity, industrial Internet, etc.; it can also be applied to personal applications such as smart wearables and smart homes.
  • zero-power devices Based on the energy source and usage of zero-power devices, zero-power devices can be divided into the following types:
  • Zero-power devices do not require internal batteries and are close to network devices (such as RFID (Radio Frequency
  • RFID radio frequency identification
  • a zero-power device When a zero-power device is used as a reader/writer in a radio frequency identification (RFID) system, it is within the near-field radiation generated by the antenna of the network device. Consequently, the antenna of the zero-power device generates an induced current through electromagnetic induction, which drives the low-power chip circuit of the zero-power device. This performs tasks such as demodulating the forward link signal (downlink, from the network device to the zero-power device) and modulating the backward link signal (uplink, from the zero-power device to the network device). For backscatter links, the zero-power device uses backscatter implementation to transmit signals.
  • RFID Radio Frequency
  • the passive zero-power device does not require a built-in battery to drive either the forward link or the reverse link, and is a truly zero-power device.
  • Passive zero-power devices do not require batteries, and the RF circuit and baseband circuit are very simple. For example, they do not require devices such as LNA (Low Noise Amplifier), PA, crystal oscillator, ADC (Analog-to-Digital Converter), etc. Therefore, they have many advantages such as small size, light weight, very low price, and long service life.
  • LNA Low Noise Amplifier
  • PA Low Noise Amplifier
  • PA crystal oscillator
  • ADC Analog-to-Digital Converter
  • Semi-passive zero-power devices do not have conventional batteries installed themselves, but can use RF (Radio Frequency) energy harvesting modules to harvest radio wave energy, or use solar energy, light energy, thermal energy, or kinetic energy harvesting modules to harvest energy, and store the harvested energy in an energy storage unit (such as a capacitor). After the energy storage unit obtains energy, it can drive the low-power chip circuit of the zero-power device. This can achieve tasks such as demodulation of forward link signals and modulation of backward link signals. For backscatter links, zero-power devices use backscattering to transmit signals.
  • RF Radio Frequency
  • the semi-passive zero-power device does not require a built-in battery to drive either the forward link or the reverse link. Although it uses energy stored in capacitors during operation, the energy comes from the radio energy collected by the energy harvesting module. Therefore, it is also a truly zero-power device.
  • Semi-passive zero-power devices inherit many advantages of passive zero-power devices, so they have many advantages such as small size, light weight, very low price, and long service life.
  • the zero-power devices used in some scenarios can also be active zero-power devices.
  • Such terminals can have built-in batteries (conventional batteries, such as dry batteries, rechargeable lithium batteries, etc.).
  • the battery is used to drive the low-power chip circuit of the zero-power device. It realizes the demodulation of the forward link signal and the modulation of the reverse link signal.
  • the zero-power device uses the backscatter implementation method to transmit the signal. Therefore, the zero power consumption of this type of terminal is mainly reflected in the fact that the signal transmission of the reverse link does not require the terminal's own power, but uses the backscatter method.
  • the active zero-power device uses a battery, due to the sampling of ultra-low power communication technology, the power consumption is very low, so compared with the existing technology, the battery life can be greatly improved.
  • Active zero-power devices with built-in batteries to power the RFID chip, increase the tag's read and write distance and improve communication reliability. Therefore, they are suitable for scenarios with relatively high requirements for communication distance and read latency.
  • zero-power IoT like other IoT business types, will also focus on uplink business. Therefore, based on the way zero-power terminals send data, they can be divided into the following types:
  • These zero-power devices use the aforementioned backscattering method to transmit uplink data. They lack active transmitters, only backscattering transmitters. Therefore, when these terminals transmit data, they require network equipment to provide a carrier, which they then use to perform backscattering to achieve data transmission.
  • These zero-power devices use active transmitters with active transmission capabilities for uplink data transmission. Therefore, when sending data, these zero-power devices can use their own active transmitters to send data without the need for network equipment to provide a carrier.
  • active transmitters suitable for zero-power devices include ultra-low-power ASK and ultra-low-power FSK transmitters. Based on current implementations, these transmitters can reduce overall power consumption to 400-600uW when transmitting a 100uW signal.
  • This type of terminal supports both backscatter and active transmitters.
  • the terminal can determine which uplink signal transmission method to use based on different conditions (such as battery status, available environmental energy) or based on the scheduling of network equipment: Whether to use backscatter or active transmission using an active transmitter.
  • IoT Internet of Things
  • 3GPP 3rd Generation Partnership Project
  • NB-IoT Narrow Band Internet of Things
  • MTC Machine Type Communication
  • RedCap RedCap
  • Certain IoT scenarios may encounter extreme environments such as high temperature, extremely low temperature, high humidity, high voltage, high radiation, or high-speed movement. Examples include ultra-high voltage substations, high-speed train track monitoring, environmental monitoring in high-altitude cold regions, and industrial production lines. In these scenarios, existing IoT terminals will not function due to the operating environment limitations of conventional power supplies. Furthermore, extreme operating environments are not conducive to IoT maintenance, such as battery replacement.
  • IoT communication scenarios such as food traceability, commodity distribution, and smart wearables
  • terminals For example, IoT terminals used for commodity management in the distribution process often take the form of electronic tags, embedded in product packaging in a very compact form factor.
  • Another example is lightweight wearable devices that can meet user needs while improving the user experience.
  • IoT terminals are sufficiently affordable to enhance their competitiveness compared to alternative technologies. For example, in logistics or warehousing, to facilitate the management of large quantities of circulating items, IoT terminals can be attached to each item. Communication between the terminal and the logistics network enables precise management of the entire logistics process and lifecycle. These scenarios require IoT terminals to be competitively priced.
  • Ambient IoT can be used in at least the following four scenarios:
  • Object recognition such as logistics, production line product management, and supply chain management
  • Positioning such as indoor positioning, intelligent object search, and production line item positioning
  • Intelligent control such as intelligent control of various electrical appliances in smart homes (turning on and off air conditioners, adjusting temperature), and intelligent control of various facilities in agricultural greenhouses (automatic irrigation and fertilization).
  • Category 1 A-IoT devices ⁇ 1uW peak power consumption, with energy storage, an initial sampling frequency offset of 10X ppm, no uplink or downlink power amplifiers, and uplink transmissions via backscattering of an external carrier.
  • X ranges from 4 to 5, i.e., [4, 5].
  • tag a When a tag accesses a slot, for example, tag a accesses slot 0 in Figure 7, tag a first sends a 16-bit random sequence RN16 to the reader as a temporary identifier. After receiving RN16, the reader returns a Response to tag a, which includes the same RN16. If the RN16 received by tag a matches the RN16 it previously sent, tag a sends the EPC (Electronic Product Code) to the reader. After receiving the EPC, the reader sends a Queryrep. This signaling indicates to tag a that the EPC has been received and that tag a's inventory has been successful. It also indicates to all tags that their counter values should be decremented by 1, starting a new slot where other tags can access.
  • EPC Electronic Product Code
  • the reader receives tag b's RN16 with high power and tag c's RN16 with low power, the reader demodulates tag b's RN16 and sends an RN16 containing tag b to tag b, causing tag b to report the EPC, leading to successful inventory.
  • a collision will cause the inventory of existing A-IOT devices to fail and wait until the next round.
  • A-IOT downlink transmission is the transmission from the base station to the A-IOT device in Deployment Scenario 1 ( Figure 6), and also the transmission from the intermediate node to the A-IOT device in Deployment Scenario 2 ( Figure 6).
  • A-IOT uplink transmission is the transmission from the A-IOT device to the base station in Deployment Scenario 1 ( Figure 6), and also the transmission from the A-IOT device to the intermediate node in Deployment Scenario 2 ( Figure 6).
  • Figure 8 shows a schematic diagram of two frame structures provided by an embodiment of the present application, wherein sub-figure 1 is one frame structure and sub-figure 2 is another frame structure.
  • sub-figure 1 is one frame structure
  • sub-figure 2 is another frame structure.
  • the two frame structures shown in Sub- Figures 1 and 2 have in common that a preamble (leading sequence) is designed before the control and/or data channel for timing calibration.
  • the preamble can also be used to indicate simple control information.
  • the difference lies in whether a separate control channel is designed.
  • a separate control channel is designed for transmitting control information, while the data channel is used to carry data.
  • the two channels have different functions, and the control channel and data channel can use different bit rates and different encoding methods.
  • no separate control channel is designed, so the data channel can carry both control information and data.
  • the control information is carried in the MAC CE (Media Access Control Element) of the data channel.
  • MAC CE Media Access Control Element
  • slot-based aloha can serve as a reference for random access in A-IoT.
  • slot-based aloha only allows one access opportunity per inventory round. If a collision or transmission failure occurs, access must wait until the next inventory round. This can introduce significant access latency when the Q value is high or there are many idle slots.
  • Figure 9 shows a flow chart of an information transmission method provided by an embodiment of the present application.
  • the method can be applied to the network architecture shown in Figures 1 and 6.
  • the method can include the following step 910.
  • the first device uses the additional transmission resources to send the first information to the second device, and the second device receives the first information sent by the first device using the additional transmission resources.
  • the transmission resource is a time-frequency resource used to transmit information.
  • the first information is sent using an additional transmission time domain unit, where the additional transmission time domain unit is indicated by the second device.
  • the time domain unit is a resource unit obtained by dividing the resource in the time domain.
  • the granularity of the division of the time domain unit can be any one of a frame, a subframe, a time slot, a sub-time slot, a symbol, a symbol group, and the like.
  • Transmission collision occurs between multiple first devices: multiple first devices send second information in the same transmission time domain unit, resulting in the second device being unable to successfully receive the second information sent by each of the multiple first devices, or only successfully receiving the second information sent by some of the multiple first devices, but unable to successfully receive the second information sent by other first devices;
  • Second information is lost: the second information sent by the first device is lost during transmission;
  • the confirmation information corresponding to the second information is lost or the decoding fails: After the second device receives the second information sent by the first device, it sends the confirmation information corresponding to the second information to the first device. The confirmation information corresponding to the second information is lost during the transmission process or is not correctly decoded by the first device.
  • the second information is identical to the first information. If the first device does not receive an acknowledgment of the second information after sending the second information, the first device uses additional transmission resources to send the first information, which is equivalent to the first device using additional transmission resources to resend the second information. This allows for the use of additional transmission resources to promptly retransmit the second information if the second information is not successfully received.
  • both the second information and the first information include identification information of the first device.
  • the device identification information is used to distinguish different devices, and different devices have different identification information.
  • the identification information of the first device can be RN16 or EPC, or other identifiers used to distinguish different devices.
  • RN16 is a 16-bit random number.
  • EPC is used to uniquely identify a device.
  • the second information is RN16 and the first information is RN16; or, the second information is EPC and the first information is RN16; or, the second information is EPC and the first information is EPC; or, the second information is RN16 and the first information is EPC.
  • the first device is an A-IOT device
  • the second device is a network device or an intermediate node.
  • the network device may be a base station
  • the intermediate node may be a terminal device under network control.
  • the first device sends the first information or the second information in at least one of the following ways: backscattering, active transmission.
  • the A-IOT device when an A-IOT device does not receive a corresponding confirmation message after performing an uplink transmission within the current inventory round, uses an additional transmission time slot for transmission. Specifically, when the A-IOT device does not receive a corresponding confirmation message including the first identifier after transmitting a first identifier, or does not receive a confirmation message including a portion of the first identifier, the A-IOT device uses an additional transmission time slot for transmission, where the first identifier is RN16, EPC, or other A-IOT device identifier.
  • the second device schedules additional transmission resources via the A-IOT downlink control channel (such as sub-figure 1 of Figure 8) or the A-IOT downlink data channel (such as sub-figure 1 of Figure 8), that is, the third information is carried in the downlink control channel of sub-figure 1 of Figure 8 or the downlink data channel of sub-figure 1 or 2 of Figure 8.
  • the A-IOT downlink control channel is PRDCCH (Physical reader to device control channel).
  • the A-IOT downlink data channel is either PRDSCH (Physical reader to device shared channel) or PRDCH (Physical reader to device channel).
  • the additional transmission resources are indicated when a first condition is satisfied, the first condition including a number of transmission collisions being greater than or equal to a first threshold.
  • the second device sends third information to the first device, the third information being used to indicate the additional transmission resources.
  • the first device after receiving the third information, the first device initializes the value of the counter, wherein when the value of the counter is 0, the first device uses additional transmission resources to send the first information.
  • the first device uses the counter to determine whether it is its turn to send the first information based on the value of the counter.
  • the first device randomly initializes the value of the counter, for example, randomly determines a numerical value as the value of the initialized counter.
  • the first device uses additional transmission resources to send the first information; when the value of the counter is not 0, the first device does not use additional transmission resources to send the first information. If the value of the initialized counter is not 0, the first device can subsequently update the value of the counter, such as subtracting 1 from the value of the counter after receiving the fourth information.
  • N A-IOT devices report information.
  • the above-mentioned N A-IOT devices are N A-IOT tags (hereinafter referred to as "tags").
  • tags N A-IOT tags
  • the inventory service in A-IOT is implemented through a mechanism similar to slot-based Aloha.
  • the reader in Figures 10 and 11 can be a network device or an intermediate node.
  • the reader uses the frame structure shown in sub-figure 1 or sub-figure 2 of Figure 8 to send a Query instruction, a Response instruction, a QueryRep instruction, a third message, and a fourth message to the tag.
  • the above instructions or information can be carried in the data channel or control channel of sub-figure 1 of Figure 8.
  • the above instructions or information can also be carried in the data channel of sub-figure 2 of Figure 8.
  • the above-mentioned N tags use the frame structure shown in sub-figure 1 or sub-figure 2 of Figure 8 to send RN16 and EPC to the reader.
  • the above information is carried in the data channel or control channel of sub-figure 1 of Figure 8.
  • the above information is carried in the data channel of sub-figure 2 of Figure 8.
  • the reader determines the tag to be counted by sending a Select command.
  • the reader sends a Query command to the tag, indicating its Q value.
  • the tag to be counted After obtaining the Q value, the tag to be counted generates a random integer between 0 and (2 ⁇ Q-1), such as a counter.
  • Tag a generates a counter value of 0, so it accesses slot 0.
  • Tag a sends an RN16 to the reader.
  • the reader After receiving the RN16, the reader sends all or part of the received RN16 (i.e., a truncated RN16) as a Response command to tag a.
  • tag a finds that it matches the RN16 it sent and sends an EPC to the reader.
  • the reader After receiving the EPC, the reader sends a QueryRep command. This confirms receipt of tag a's EPC and indicates the end of slot 0 and the beginning of slot 1. After receiving the QueryRep command, each tag decrements its counter by 1. Since no tags are accessing, the reader sends QueryRep commands in slots 1 and 2. Upon receiving these commands, the tags also decrement their counters by 1. Since the initial counter of tag b and tag c is 3, a transmission collision occurs when both send RN16 to the reader in slot 3.
  • tag b sends RN16 to access in the first additional transmission slot, slot_a 0, after receiving the third message.
  • the reader does not send a QueryRep command. Instead, it sends a fourth message, which indicates the end position of slot_a 0 and the beginning position of slot_a 1, and also confirms the EPC sent by tag b.
  • the slot_a 1 reader After receiving the EPC of tag c, the slot_a 1 reader sends a QueryRep command, indicating the end of the additional transmission slot slot_a 1 and indicating a new time slot. At this time, the counters of the tags being counted are all decremented by 1.
  • the fourth message indicates the end of the timeslot in which the fourth message is sent and the start of the next additional transmission timeslot. It also serves as a positive acknowledgement of receipt of the EPC in the current timeslot. From the tag's perspective, receipt of the fourth message decrements its counter by 1. This tag is the one for which RN16 was sent but for which no corresponding acknowledgement was received.
  • the technical solution provided by the present application is that the first device sends the first information through additional transmission resources, and the additional transmission resources are indicated by the second device, which increases additional transmission opportunities for the first device, thereby reducing the transmission conflicts caused by the transmission conflicts. delay.
  • this solution allows A-IOT devices to have multiple access opportunities in one inventory round.
  • network devices or intermediate nodes can respond in a timely manner, schedule additional transmission resources, resolve the access conflict, and reduce access latency.
  • the above embodiments only describe the technical solutions provided by this application from the perspective of the interaction between the first device and the second device.
  • the above steps performed by the first device can be independently implemented as an information transmission method on the first device side.
  • the above steps performed by the second device can also be independently implemented as an information transmission method on the second device side.
  • FIG 12 shows a block diagram of an information transmission device provided by an embodiment of the present application.
  • the device has the function of implementing the information transmission method on the first device side described above.
  • the function can be implemented by hardware or by hardware executing corresponding software.
  • the device can be the first device described above, or it can be set in the first device.
  • the device 1200 can include: a sending module 1210.
  • the sending module 1210 is configured to send the first information using additional transmission resources, where the additional transmission resources are indicated by the second device.
  • the sending module 1210 is configured to use the additional transmission resources to send the first information if the first device does not receive confirmation information corresponding to the second information after sending the second information.
  • the second information is the same as the first information.
  • the second information and the first information both include identification information of the first device.
  • the apparatus 1200 further includes a processing module 1220 for initializing a counter value after receiving the third information, wherein when the value of the counter is 0, the first device uses the additional transmission resources to send the first information.
  • the third information includes a first value; the processing module 1220 is configured to initialize the value of the counter according to the first value.
  • the third information is carried in a control channel or a data channel.
  • the apparatus 1200 further includes a processing module 1220 for reducing the value of a counter by 1 after receiving the fourth information, wherein when the value of the counter is 0, the first device uses the additional transmission resources to send the first information.
  • the fourth information is used to indicate a time domain end position of the current additional transmission resource and/or to indicate a time domain start position of the next additional transmission resource.
  • the fourth information is carried in a control channel or a data channel.
  • the additional transmission resources are indicated when a first condition is satisfied, the first condition comprising a number of transmission collisions being greater than or equal to a first threshold.
  • the first threshold is configured by the second device, or preconfigured, or predefined by a protocol, or depends on the implementation of the second device.
  • the receiving module 1310 is configured to receive first information sent by a first device using additional transmission resources, where the additional transmission resources are indicated by the second device.
  • the first information is that the first device does not receive the second information after sending the second information. Sent with corresponding confirmation information.
  • the second information is the same as the first information.
  • the apparatus 1300 further includes a sending module 1320 configured to send third information, where the third information is used to indicate the additional transmission resources.
  • the third information includes a first value, and the number of the additional transmission resources is related to the first value.
  • the sending module 1320 is configured to send the third information when a first condition is met, wherein the first condition includes that the number of transmission collisions is greater than or equal to a first threshold.
  • the first device is an A-IOT device
  • the second device is a network device or an intermediate node.
  • the communication device can be the first device or the second device described above.
  • the communication device 1400 may include: at least one of a processor 1401, a transceiver 1402, and a memory 1403.
  • the processor 1401 is used to implement various processing functions of the communication device 1400, such as generating information to be sent, processing received information, controlling sending and/or receiving, and implementing the functions of the processing modules described above.
  • the transceiver 1402 is used to implement sending and/or receiving functions, such as implementing the functions of the sending module and/or receiving module described above.
  • the processor 1401 includes one or more processing cores.
  • the processor 1401 executes various functional applications and information processing by running software programs and modules.
  • the transceiver 1402 may include a receiver and a transmitter.
  • the receiver and the transmitter may be implemented as the same wireless communication component, which may include a wireless communication chip and a radio frequency antenna.
  • the memory 1403 may be connected to the processor 1401 and the transceiver 1402 .
  • the memory 1403 may be used to store a computer program executed by the processor, and the processor 1401 is used to execute the computer program to implement each step in the above method embodiment.
  • the communication device 1400 is the first device described in the above embodiments, and the transceiver 1402 is configured to send the first information using additional transmission resources, where the additional transmission resources are indicated by the second device.
  • the communication device 1400 is the second device in the above embodiments, and the transceiver 1402 is configured to receive first information sent by the first device using additional transmission resources, where the additional transmission resources are indicated by the second device.
  • the memory may be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to magnetic or optical disks, electrically erasable programmable read-only memories, and erasable Programmable read-only memory, static random access memory, read-only memory, magnetic memory, flash memory, programmable read-only memory.
  • the embodiment of the present application also provides a computer-readable storage medium, in which a computer program is stored, and the computer program is used to be executed by a processor to implement the above-mentioned information transmission method on the first device side, or to implement the above-mentioned information transmission method on the second device side.
  • the computer-readable storage medium may include: ROM (Read-Only Memory), RAM (Random-Access Memory), SSD (Solid State Drives) or optical disks, etc.
  • random access memory may include ReRAM (Resistance Random Access Memory) and DRAM (Dynamic Random Access Memory).
  • An embodiment of the present application also provides a chip, which includes a programmable logic circuit and/or program instructions. When the chip is running, it is used to implement the above-mentioned information transmission method on the first device side, or to implement the above-mentioned information transmission method on the second device side.
  • An embodiment of the present application also provides a computer program product, which includes computer instructions, which are stored in a computer-readable storage medium.
  • a processor reads and executes the computer instructions from the computer-readable storage medium to implement the above-mentioned information transmission method on the first device side, or to implement the above-mentioned information transmission method on the second device side.
  • indication can be a direct indication, an indirect indication, or an indication of an association.
  • “A indicates B” can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.
  • corresponding may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.
  • predefined may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., including a terminal device and a network device), and the present application does not limit the specific implementation method.
  • predefined may refer to information defined in a protocol.
  • step numbers described in this document only illustrate a possible execution order between the steps.
  • the above steps may not be executed in the order of the numbers, such as two steps with different numbers are executed at the same time, or two steps with different numbers are executed in the opposite order of the diagram.
  • the embodiments of the present application are not limited to this.

Landscapes

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

Abstract

Procédé et appareil de transmission d'informations, et dispositif et support de stockage, qui se rapportent au domaine technique des communications. Le procédé comprend les étapes suivantes : un premier dispositif utilise des ressources de transmission supplémentaires pour envoyer des premières informations, les ressources de transmission supplémentaires étant indiquées par un second dispositif (910). Dans le procédé, le fait de permettre à un premier dispositif d'envoyer des premières informations au moyen de ressources de transmission supplémentaires, augmente les opportunités de transmission supplémentaires pour le premier dispositif, ce qui permet de réduire la latence provoquée par des conflits de transmission.
PCT/CN2024/085527 2024-04-02 2024-04-02 Procédé et appareil de transmission d'informations, et dispositif et support de stockage Pending WO2025208335A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2024/085527 WO2025208335A1 (fr) 2024-04-02 2024-04-02 Procédé et appareil de transmission d'informations, et dispositif et support de stockage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2024/085527 WO2025208335A1 (fr) 2024-04-02 2024-04-02 Procédé et appareil de transmission d'informations, et dispositif et support de stockage

Publications (1)

Publication Number Publication Date
WO2025208335A1 true WO2025208335A1 (fr) 2025-10-09

Family

ID=97265818

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2024/085527 Pending WO2025208335A1 (fr) 2024-04-02 2024-04-02 Procédé et appareil de transmission d'informations, et dispositif et support de stockage

Country Status (1)

Country Link
WO (1) WO2025208335A1 (fr)

Similar Documents

Publication Publication Date Title
CN118786710A (zh) 用于无源物联网的初始接入和设备标识协议设计
WO2023000209A1 (fr) Procédé de communication sans fil, dispositif terminal et dispositif de réseau
WO2023151045A1 (fr) Procédés et dispositifs de communication par rétrodiffusion
WO2023279325A1 (fr) Procédé et appareil de communication, dispositif terminal et dispositif réseau
EP4597947A1 (fr) Procédé et dispositif de communication sans fil
WO2023060596A1 (fr) Procédé d'indication d'informations, dispositif de réseau, terminal, puce et support de stockage
WO2025208335A1 (fr) Procédé et appareil de transmission d'informations, et dispositif et support de stockage
WO2025102253A9 (fr) Procédé, appareil, dispositif de transmission de canal, et support de stockage
WO2024138682A1 (fr) Procédé et appareil de communication à consommation d'énergie nulle, et dispositif et support
WO2025208269A1 (fr) Procédé et appareil d'indication d'informations, dispositif et support de stockage
WO2025184786A1 (fr) Procédé et appareil de transmission d'informations, dispositif et support de stockage
WO2023283758A1 (fr) Procédé de communication sans fil, dispositif terminal et dispositif de communication
WO2025251286A1 (fr) Procédé et appareil de transmission d'onde porteuse, dispositif et support de stockage
WO2025231882A1 (fr) Procédé et appareil de transmission de porteuse, dispositif et support de stockage
WO2025231819A1 (fr) Procédé et appareil de détermination de ressources, et premier dispositif et second dispositif
WO2025156187A1 (fr) Procédé et appareil de transmission de liaison montante, dispositif, support de stockage et puce
WO2024250212A9 (fr) Procédé de communication sans fil, premier dispositif et second dispositif
WO2025152035A1 (fr) Procédé et appareil de transmission d'informations de données, dispositif et support de stockage
WO2025245785A1 (fr) Procédé et appareil d'accès à un dispositif pour système à énergie ambiante, dispositif et support
WO2025208409A1 (fr) Procédé et appareil de réglage de puissance, et dispositif et support de stockage
WO2025231622A1 (fr) Procédé et appareil de commande de puissance, dispositif et support de stockage
WO2025166649A1 (fr) Procédé et appareil de transmission, dispositif, support, et produit-programme
WO2025166504A1 (fr) Procédé de communication sans fil, dispositif de communication, appareil et support de stockage
WO2025091304A1 (fr) Procédés et appareils de transmission de signal, et dispositifs et support
WO2025208339A1 (fr) Procédé et appareil de transmission d'informations, dispositif, puce, et support de stockage

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 24933294

Country of ref document: EP

Kind code of ref document: A1