WO2024125403A1 - Procédés de transmission, appareil, terminal et dispositif côté réseau - Google Patents

Procédés de transmission, appareil, terminal et dispositif côté réseau Download PDF

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Publication number
WO2024125403A1
WO2024125403A1 PCT/CN2023/137423 CN2023137423W WO2024125403A1 WO 2024125403 A1 WO2024125403 A1 WO 2024125403A1 CN 2023137423 W CN2023137423 W CN 2023137423W WO 2024125403 A1 WO2024125403 A1 WO 2024125403A1
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message
signal
delay
target
configuration
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PCT/CN2023/137423
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English (en)
Chinese (zh)
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谭俊杰
简荣灵
黄伟
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维沃移动通信有限公司
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Publication of WO2024125403A1 publication Critical patent/WO2024125403A1/fr

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  • the present application belongs to the field of communication technology, and specifically relates to a transmission method, apparatus, terminal and network side equipment.
  • multiple backscatter communication (BSC) devices use completely orthogonal resources to access channels and transmit data.
  • BSC time division multiple access
  • the next BSC device needs to wait until the previous BSC device finishes transmitting before it can start to end.
  • the BSC device also needs to send a contention data packet to the reader (or access point) before formal data transmission. Only when the contention data packet is correctly and uniquely identified can it obtain resources for subsequent data transmission.
  • this access method is extremely inefficient. Therefore, there is a problem of low efficiency of BSC device transmission in the related art.
  • the embodiments of the present application provide a transmission method, apparatus, terminal and network-side equipment, which can solve the problem of low transmission efficiency of BSC equipment.
  • a transmission method comprising:
  • the first device receives a first message from the second device, where the first message is used to indicate device identification information of the second device, and the first message is a message that the second device does not send based on a delay offset value;
  • the first device determines, based on the first message, device identification information of the second device and a first delay of the second device;
  • the first delay is used to determine a first delay configuration
  • the first delay configuration is the delay configuration of the second device
  • the first delay configuration is used to determine the sending time of a first target signal
  • the first target signal is a signal sent by the second device based on a second target signal received from the first target device
  • the first target device includes the first device or the third device.
  • a transmission method including:
  • the second device sends a first message to the first device, where the first message is used to indicate the device identification information of the second device, and the first message is used to determine the identification information of the second device and the first delay of the second device, and the The first message is a message that the second device does not send based on the delay offset value;
  • the first delay is used to determine a first delay configuration
  • the first delay configuration is the delay configuration of the second device
  • the first delay configuration is used to determine the sending time of a first target signal
  • the first target signal is a signal sent by the second device based on a second target signal received from the first target device
  • the first target device includes the first device or the third device.
  • a third aspect provides a transmission method, including:
  • the third device sends a third message to the second device, where the third message is used to indicate a first target configuration, where the first target configuration is used to send a first message, and the target configuration includes a silence parameter used to determine whether to send the first message, where the first message is a message that the second device does not send based on the delay offset value;
  • the third device sends a second target signal to the second device, where the second target signal is used to send a first target signal to the first device based on the target delay configuration;
  • the first message is used to indicate the device identification information of the second device, and the first message is used by the first device to determine the identification information of the second device and the first delay of the second device;
  • the first delay is used to determine a first delay configuration, the first delay configuration is the delay configuration of the second device, the first delay configuration is used to determine the sending time of a first target signal, the first target signal is a signal sent by the second device based on the second target signal received from the first target device, and the first target device includes the first device or the third device.
  • a transmission device comprising:
  • a first receiving module configured to receive a first message from a second device, where the first message is used to indicate device identification information of the second device, and the first message is a message sent by the second device not based on a delay offset value;
  • a first determining module configured to determine device identification information of the second device and a first delay of the second device based on the first message
  • the first delay is used to determine a first delay configuration
  • the first delay configuration is the delay configuration of the second device
  • the first delay configuration is used to determine the sending time of a first target signal
  • the first target signal is a signal sent by the second device based on a second target signal received from the first target device
  • the first target device includes a first device or a third device.
  • a transmission device including:
  • a second sending module configured to send a first message to a first device, wherein the first message is used to indicate device identification information of the second device, the first message is used to determine the identification information of the second device and a first delay of the second device, and the first message is a message sent by the second device without being based on a delay offset value;
  • the first delay is used to determine a first delay configuration
  • the first delay configuration is the delay configuration of the second device
  • the first delay configuration is used to determine the sending time of a first target signal
  • the first target signal is a signal sent by the second device based on a second target signal received from the first target device
  • the first target device includes the first device or the third device.
  • a transmission device including:
  • the third sending module is used to send a third message to the second device and send a second target signal to the second device.
  • the second target signal is used to send the first target signal to the first device based on the target delay configuration;
  • the third message is used to indicate a first target configuration
  • the first target configuration is used to send a first message
  • the target configuration includes a silence parameter for determining whether to send the first message
  • the first message is a message that the second device does not send based on a delay offset value
  • the first message is used to indicate device identification information of the second device, and the first message is used by the first device to determine the identification information of the second device and the first delay of the second device
  • the first delay is used to determine a first delay configuration
  • the first delay configuration is the delay configuration of the second device
  • the first delay configuration is used to determine the sending time of a first target signal
  • the first target signal is a signal sent by the second device based on a second target signal received from the first target device
  • the first target device includes the first device or the third device.
  • a terminal which includes a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented, or the steps of the method described in the third aspect are implemented.
  • a terminal including a processor and a communication interface, wherein:
  • the communication interface is used to receive a first message from a second device, the first message is used to indicate device identification information of the second device, and the first message is a message that the second device is not sent based on a delay offset value;
  • the processor is used to determine the device identification information of the second device and a first delay of the second device based on the first message; wherein the first delay is used to determine a first delay configuration, the first delay configuration is the delay configuration of the second device, the first delay configuration is used to determine a sending time of a first target signal, the first target signal is a signal sent by the second device based on a second target signal received from the first target device, and the first target device includes a first device or a third device.
  • the communication interface is used to send a first message to the first device, the first message is used to indicate the device identification information of the second device, the first message is used to determine the identification information of the second device and the first delay of the second device, and the first message is a message sent by the second device not based on a delay offset value; wherein the first delay is used to determine a first delay configuration, the first delay configuration is the delay configuration of the second device, the first delay configuration is used to determine the sending time of a first target signal, the first target signal is a signal sent by the second device based on a second target signal received from the first target device, and the first target device includes the first device or the third device.
  • the communication interface is used to send a third message to the second device, send a second target signal to the second device, and the second target signal is used to send a first target signal to the first device based on the target delay configuration; wherein the third message is used to indicate the first target configuration, the first target configuration is used to send the first message, and the target configuration includes a silence parameter for determining whether to send the first message, and the first message is a message that the second device does not send based on the delay offset value; the first message is used to indicate the device identification information of the second device, and the first message is used by the first device to determine the identification information of the second device and the first delay of the second device; the first delay is used to determine the first delay configuration, and the first delay configuration is the delay configuration of the second device
  • the first delay configuration is used to determine a sending time of a first target signal, the first target signal is a signal sent by the second device based on a second target signal received from the first target device, and the first target device includes
  • a network side device which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented, or the steps of the method described in the third aspect are implemented.
  • a network side device including a processor and a communication interface, wherein:
  • the communication interface is used to receive a first message from a second device, the first message is used to indicate device identification information of the second device, and the first message is a message that the second device is not sent based on a delay offset value;
  • the processor is used to determine the device identification information of the second device and a first delay of the second device based on the first message; wherein the first delay is used to determine a first delay configuration, the first delay configuration is the delay configuration of the second device, the first delay configuration is used to determine a sending time of a first target signal, the first target signal is a signal sent by the second device based on a second target signal received from the first target device, and the first target device includes a first device or a third device.
  • the communication interface is used to send a first message to the first device, the first message is used to indicate the device identification information of the second device, the first message is used to determine the identification information of the second device and the first delay of the second device, and the first message is a message sent by the second device not based on the delay offset value; wherein the first delay is used to determine a first delay configuration, the first delay configuration is the delay configuration of the second device, the first delay configuration is used to determine the sending time of a first target signal, the first target signal is a signal sent by the second device based on a second target signal received from the first target device, and the first target device includes the first device or the third device.
  • the communication interface is used to send a third message to the second device, send a second target signal to the second device, and the second target signal is used to send a first target signal to the first device based on the target delay configuration;
  • the third message is used to indicate the first target configuration, the first target configuration is used to send the first message, and the target configuration includes a silence parameter for determining whether to send the first message, and the first message is a message that the second device does not send based on the delay offset value;
  • the first message is used to indicate the device identification information of the second device, and the first message is used by the first device to determine the identification information of the second device and the first delay of the second device;
  • the first delay is used to determine the first delay configuration, the first delay configuration is the delay configuration of the second device, the first delay configuration is used to determine the sending time of the first target signal, the first target signal is a signal sent by the second device based on the second target signal received from the first target device, and the first target device includes the
  • a communication system comprising: a first device, a second device and a third device, wherein the first device can be used to execute the steps of the transmission method described in the first aspect, the second device can be used to execute the steps of the transmission method described in the second aspect, and the third device can be used to execute the steps of the transmission method described in the third aspect.
  • a readable storage medium on which a program or instruction is stored.
  • the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented, or the steps of the method described in the third aspect are implemented.
  • a chip comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instructions to implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect.
  • a computer program/program product is provided, wherein the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect.
  • a first message is received from a second device through a first device, the first message is used to indicate the device identification information of the second device, and the first message is a message that the second device does not send based on the delay offset value; the first device determines the device identification information of the second device and the first delay of the second device based on the first message; wherein the first delay is used to determine the first delay configuration, the first delay configuration is the delay configuration of the second device, the first delay configuration is used to determine the sending time of the first target signal, the first target signal is a signal sent by the second device based on the second target signal received from the first target device, and the first target device includes the first device or the third device.
  • different second devices can have different delays, and different channel responses can be determined by using the delay differences of different second devices, and the corresponding information to be transmitted can be obtained based on the channel response demodulation, so that multiple devices can be allowed to share the same physical resources for parallel and concurrent transmission, thereby improving the transmission efficiency.
  • FIG1 is a schematic diagram of a network structure applicable to an embodiment of the present application.
  • FIG2 is an example diagram of a single-base transmission scenario applicable to an embodiment of the present application.
  • FIG3 is an example diagram of a dual-base transmission scenario applicable to an embodiment of the present application.
  • FIG4 is an example diagram of a conventional communication scenario
  • FIG5 is a diagram showing an example of a BSC communication scenario
  • FIG6 is a schematic diagram of a flow chart of a transmission method provided in an embodiment of the present application.
  • FIG7 is a schematic diagram of a flow chart of another transmission method provided in an embodiment of the present application.
  • FIG8 is a schematic diagram of a flow chart of another transmission method provided in an embodiment of the present application.
  • FIG9 is a structural diagram of a transmission device provided in an embodiment of the present application.
  • FIG10 is a structural diagram of another transmission device provided in an embodiment of the present application.
  • FIG11 is a structural diagram of another transmission device provided in an embodiment of the present application.
  • FIG12 is a structural diagram of a communication device provided in an embodiment of the present application.
  • FIG13 is a structural diagram of a terminal provided in an embodiment of the present application.
  • FIG. 14 is a structural diagram of a network-side device provided in an embodiment of the present application.
  • first, second, etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by “first” and “second” are generally of the same type, and the number of objects is not limited.
  • the first object can be one or more.
  • “and/or” in the specification and claims represents at least one of the connected objects, and the character “/" generally represents that the objects associated with each other are in an "or” relationship.
  • instruction in the specification and claims of this application can be either an explicit instruction or an implicit instruction.
  • An explicit instruction can be understood as the sender explicitly informing the receiver of the operation to be performed or the request result in the instruction sent; an implicit instruction can be understood as the receiver making a judgment based on the instruction sent by the sender and determining the operation to be performed or the request result based on the judgment result.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • NR new radio
  • FIG1 shows a block diagram of a wireless communication system applicable to an embodiment of the present application.
  • the wireless communication system includes a terminal 11 and a network side device 12.
  • the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (AR)/virtual reality (VR) device, a robot, a wearable device (Wearable Device), a vehicle-mounted device (VUE), a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (a home appliance with wireless communication function, such as a refrigerator, a television, a washing machine or furniture, etc.), a game console, a personal computer (PC), a teller machine or a self-service machine and other terminal side devices, and the wearable device includes
  • the network side device 12 may include access network equipment or core network equipment, wherein the access network equipment may also be referred to as wireless access network equipment, wireless access network (Radio Access Network, RAN), wireless access network function or wireless access network unit.
  • the access network equipment may include a base station, a wireless local area network (WLAN) access point or a WiFi node, etc.
  • WLAN wireless local area network
  • the base station may be called a node B, an evolved node B (eNB), an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home node B, a home evolved node B, a transmitting and receiving point (TRP) or some other suitable term in the field.
  • eNB evolved node B
  • BTS base transceiver station
  • BSS basic service set
  • ESS extended service set
  • home node B a home evolved node B
  • TRP transmitting and receiving point
  • Backscatter communication refers to the use of radio frequency signals from other devices or the environment to modulate signals in order to transmit its own information. It is a typical passive IoT device.
  • the basic components and main functions of the backscatter communication transmitter include:
  • Antenna unit used to receive RF signals and control commands, and also used to send modulated backscattered signals;
  • Energy harvesting module or power supply module This module is used for backscatter communication equipment to harvest radio frequency energy or other energy, including but not limited to solar energy, kinetic energy, mechanical energy, thermal energy, etc. In addition to the energy harvesting module, it may also include a battery power supply module. In this case, the backscatter communication equipment is a semi-passive device. The energy harvesting module or power supply module supplies power to all other modules in the device.
  • Microcontroller including control of baseband signal processing, energy storage or data scheduling status, switch switching, system synchronization, etc.;
  • Signal receiving module used to demodulate control commands or data sent by the backscatter communication receiving end or other network nodes;
  • Channel coding and modulation module performs channel coding and signal modulation under the control of the controller, and realizes modulation by selecting different load impedances under the control of the controller through a selection switch;
  • Memory or sensor module used to store device identification (ID) information, location information or sensor data, etc.
  • future backscatter communication transmitters can even integrate tunnel diode amplifier modules, low-noise amplifier modules, etc. to improve the receiving sensitivity and transmission power of the transmitter.
  • the backscatter communication receiving end such as the backscatter communication receiving end in the traditional Radio Frequency Identification (RFID) system
  • RFID Radio Frequency Identification
  • Antenna unit used to receive modulated backscattered signals
  • Backscatter signal detection module used to detect the backscatter signal sent by the transmitter, including amplitude key Amplitude Shift Keying (ASK) detection, Phase Shift Keying (PSK) detection, Frequency-shift Keying (FSK) or Quadrature Amplitude Modulation (QAM) detection, etc.
  • ASK amplitude key Amplitude Shift Keying
  • PSK Phase Shift Keying
  • FSK Frequency-shift Keying
  • QAM Quadrature Amplitude Modulation
  • Demodulation and decoding module demodulates and decodes the detected signal to restore the original information stream.
  • MCSs Monostatic Backscatter Communication System
  • the traditional RFID system is a typical MBCS.
  • the system includes a BSC transmitter (such as a tag) and a reader.
  • the reader includes an RF source and a BSC receiver, where the RF source is used to generate an RF signal to power the BSC transmitter/Tag.
  • the BSC transmitter backscatters the modulated RF signal, and the BSC receiver in the reader receives the backscattered signal and then demodulates the signal. Since the RF source and the BSC receiver are in the same device, such as the reader here, it becomes a single-station backscatter communication system.
  • the MBCSs system In the MBCSs system, the RF signal sent from the BSC transmitter will undergo a double near-far effect caused by the signal attenuation of the round-trip signal, so the signal energy attenuation is large. Therefore, the MBCS system is generally used for short-distance backscatter communication, such as traditional RFID applications.
  • BBCSs Bistatic Backscatter Communication Systems
  • the RF source, BSC transmitting equipment and BSC receiving equipment in the BBCS system are separated, as shown in Figure 3. Therefore, BBCS avoids the problem of large round-trip signal attenuation.
  • the performance of the BBCS communication system can be further improved by properly placing the RF source.
  • the ambient backscatter communication system (ABCSs) is also a type of dual-base backscatter communication, but the RF source in the BBCS system is a dedicated signal RF source.
  • the RF source in the ABCS system can be an available early RF source in the environment, such as: TV towers, cellular base stations, WiFi signals, Bluetooth signals, etc.
  • Multiple access is also called multi-user access. Its purpose is to allow multiple users to access a base station (or access point) for communication at the same time, while ensuring that the signals between users do not interfere with each other and that the signals sent by the users are successfully detected.
  • Common multiple access methods include frequency division multiple access (FDMA), time division multiple access (TDMA) and code division multiple access (CDMA).
  • RFID is a traditional backscatter communication system whose main design goal is to identify and read the data of BSC devices (i.e. tags) within the coverage of the reader. Since RFID was first used in the automated inventory of large quantities of goods, the process of identifying tags and reading data is also called inventory.
  • the Tag After the reader sends a query (Query) command, the Tag responds (Reply). Taking the Reply as RN16 as an example, the Tag generates a 16-bit random number and sends it to the reader. Then the reader sends the sequence to the Tag through an affirmative confirmation (Acknowledgement, ACK) command. After the Tag successfully verifies the RN16 in the ACK, it sends the subsequent data (such as the Protocol Control bit (Protocol Control, PC)/Extended Protocol Control bit (eXtended Protocol Control, XPC), Electronic Product Code (Electronic Product Code, EPC), etc.) to the reader.
  • Protocol Control bit Protocol Control
  • PC Extended Protocol Control bit
  • EPC Electronic Product Code
  • the reader sends a Select command to select the tag to be inventoried
  • the reader sends a Query command to start a round of inventory, and Query indicates a Q value
  • All tags generate a random integer in the range of [0, 2Q-1] as the initial value of the counter;
  • the reader sends an ACK command, including the RN16 and a 2-bit command field;
  • Tag receives ACK and checks whether the RN16 contained in the ACK is the RN16 sent previously;
  • the tag that receives the QueryRep command will reduce its own counter by 1;
  • the reader can send a QueryAdjust command to reconfigure a Q value
  • the tag that has received the QueryAdjust command and has not completed the inventory will randomly select an integer in the range of [0, 2 Q -1] as the counter;
  • the tag needs to repeatedly send RN16 until the RN16 is correctly and uniquely identified by the reader, and the reader then uses the RN16 to instruct the tag to exclusively use the channel to send data.
  • the transmission of RN16 itself is prone to failure due to resource conflicts, resulting in failure to seize subsequent data transmission opportunities.
  • data transmission opportunities are exclusive, resulting in a large time overhead for waiting for transmission opportunities in the case of multiple devices.
  • hi (t) represents the gain of the i-th path to the signal at time t.
  • the reflector only has an attenuation effect on the signal, so 0 ⁇ hi (t) ⁇ 1; ⁇ ( ⁇ ) is the impulse function. If the gain of each path to the signal is time-invariant or slowly varying, then c( ⁇ ; t) can be simplified to:
  • the reflector is replaced with a device with the ability to modulate signals, such as a BSC device
  • the BSC device can modulate its own transmission symbol x i onto the original h i by adjusting the reflection coefficient, that is,
  • hi corresponds to the gain value of the i-th path when the i-th BSC device does not modulate symbols (generally, the maximum reflection coefficient can be used, such as total reflection, that is, a reflection coefficient with an absolute value of 1 is selected).
  • each BSC device can be obtained by comparing the gain values corresponding to each path. Since each path can be distinguished by delay and has a corresponding relationship with the BSC device (in an ideal case, the path corresponds to the BSC device one by one), this multi-user access method can be called delay domain multiple access.
  • the process of obtaining the channel response c( ⁇ ) is the process of channel estimation.
  • Tx sends a training sequence known to Rx, and Rx compares the difference between the received sequence after passing through the channel and the original sequence to infer the specific value of the channel response.
  • * represents the linear convolution operation
  • the length of r d is n is a noise sequence with the same length as r c . Since Rx knows d, h can be obtained by performing deconvolution and denoising operations on r d (due to the existence of noise, only an estimated value of h can be obtained, but for the sake of ease of description, perfect estimation is assumed here).
  • the training sequence may have only one symbol, which can reduce overhead but also reduce estimation accuracy.
  • an additional non- The zero value represents the signal gain value of the line-of-sight (LoS) path (or self-interference path) of the signal from Tx to Rx. This will not affect the effectiveness of this solution. It is assumed here to be 0 just for the convenience of expression.
  • LoS line-of-sight
  • the signal sent by Tx carries the training sequence.
  • Tx the training sequence
  • Case 1 Tx only sends a continuous wave (CW), and then the BSC device modulates and backscatters the training sequence based on the CW.
  • the training sequence can be generated by the BSC device backscattering the CW instead of the Tx.
  • the signal that the BSC device needs to modulate and backscatter is actually the product of the training sequence and the symbol to be transmitted.
  • Tx does not even need to send any information, but only needs to instruct the device to generate a training sequence according to certain rules.
  • the signal that the device needs to generate is the product of the training sequence and the symbol to be transmitted.
  • h′ [x 1 h 1 ,...,x 2 h 2 ,...,...,x I h I ];
  • the modulation symbols x 1 , ..., x I of the BSC device can be obtained by dividing h′ and the non-zero elements of h.
  • the BSC device can modulate a symbol, and after sending a training sequence, it needs to wait for the sequence to reach Rx through all paths before sending the next sequence (strictly speaking, after Tx sends, it needs to wait for ⁇ I - ⁇ 1 before starting the next transmission). This is to prevent the symbols modulated by the BSC device in the next sequence from aliasing the symbols modulated by other BSC devices in the previous sequence. To this end, there are the following two problems:
  • ⁇ I - ⁇ 1 may be much longer than the total duration of the sent training sequence
  • the BSC equipment can only modulate 1 symbol in each training sequence.
  • the training sequence segmentation is to divide the original training sequence of length L into multiple subsequences, which is equivalent to k training sequence symbols (subsequence length is k) corresponding to one BSC device modulation symbol.
  • the symbol modulated by the i-th BSC device i.e., the i-th BSC device
  • the m-th modulation corresponding to the m-th (i.e., the m-th) training subsequence of length 2
  • the relationship between rd and d1 , d2 , h and the modulation symbol can be expressed as:
  • R D (z) is the z-transform expression of r d ;
  • D (m) (z) is the z-transform of the training sequence used for the m-th modulation symbol.
  • H (m) (z) is the z-transform of the m-th modulation symbol of the BSC device together with its own channel.
  • a set of equations can be listed to obtain the symbols modulated by the BSC device.
  • the estimated h′ and h may need to be further processed, such as filtering, etc., which will not be elaborated here.
  • the multiple access method based on the delay domain is an efficient multi-user communication method suitable for BSC. It utilizes the multipath naturally generated by BSC equipment (or communication equipment with equivalent effects of "reflection/scattering". Rx detects the modulation symbols of BSC equipment based on the correspondence between multipath delay and BSC equipment.
  • BSC equipment can use the same physical resources (time domain, frequency domain, code domain) for communication, which can improve the access capacity and spectrum efficiency of the system.
  • BSC devices For example, all symbols modulated by BSC devices are jointly detected at the same time, and the symbol sequence with the largest likelihood function is selected.
  • Related algorithms include maximum likelihood sequence detection (MLSD) and Viterbi algorithm.
  • a decoder can also be used to assist symbol detection, such as iteratively using SISO (soft-in/soft-out) decoding algorithm and SISO detection algorithm. This type of method relies entirely on the unilateral implementation of Rx and will not be described in detail here.
  • Solution 1 Adjust the training sequence.
  • Solution 2 Add delay offset to adjust the channel response sequence.
  • h [h 1 ,h 2 ,h 3 ].
  • the channel response sequence will become The number of observations is also increased, which improves the rank of matrix A.
  • Solution 3 If it is not possible to use Solution 1 or Solution 2 alone to make the rank of A equal to the length of x (that is, there is a unique solution), you can use Solution 1 and Solution 2 at the same time.
  • Tx needs to adjust the training sequence and/or configure the delay offset according to the measured h after channel estimation.
  • Tx does not need to know the relationship between each BSC device and the delay when adjusting the sequence, because the information that needs to be configured is broadcast and applicable to all BSC devices.
  • the Tx configuration delay offset value needs to specify the BSC device and per device for configuration (that is, configure it separately for each device). This means that Tx needs to identify the BSC device and match each device identifier with the delay (here is the original delay), and then to configure.
  • Solution 4 can distinguish aliased signals by increasing the degrees of freedom of the signal, including the frequency domain, power domain, and polarization domain.
  • Frequency domain frequency division multiplexing (FDM), which allows synchronized devices to use different frequencies, thereby distinguishing the signals of different devices in the frequency domain. In essence, it splits one channel response sequence into multiple channel response sequences and processes them separately;
  • Power domain Makes the signals at the receiving end of the device have power differences, so that the receiving end can use methods such as Serial Interference Cancellation (SIC) to distinguish superimposed signals.
  • SIC Serial Interference Cancellation
  • Polarization domain Signals from different antenna polarization directions are orthogonal. Therefore, when a device has antennas with multiple polarization directions, it can use different polarization directions to send signals, so that the receiving end can distinguish signals from different devices. In essence, it is also to split one channel response sequence into multiple channel response sequences and process them separately.
  • the transmission method includes:
  • Step 601 A first device receives a first message from a second device, where the first message is used to indicate device identification information of the second device, and the first message is a message that the second device does not send based on a delay offset value;
  • Step 602 The first device determines device identification information of the second device and a first delay of the second device based on the first message;
  • the first delay is used to determine a first delay configuration
  • the first delay configuration is the delay configuration of the second device
  • the first delay configuration is used to determine the sending time of a first target signal
  • the first target signal is a signal sent by the second device based on a second target signal received from the first target device
  • the first target device includes the first device or the third device.
  • the specific types of the above-mentioned first device, second device and third device can be set according to actual needs, for example, the first device is a base station, a reader/writer, a terminal device or a relay; the second device is a backscatter device, a terminal device or a relay; the third device is a base station, a reader/writer, a terminal device or a relay.
  • the target device is a first device; for a dual-base communication scenario, the target device is a third device.
  • the above-mentioned first target signal includes a channel estimation signal for channel estimation or a data transmission signal for data transmission.
  • the above-mentioned second target signal may include a fourth signal or a second signal, wherein the channel estimation signal may be referred to as a third signal, and the data transmission signal may be referred to as a first signal.
  • the above-mentioned first message may be carried by the first signal or by the third signal, and in addition, may also be carried by other additional signals, which is not further limited here.
  • the fourth signal and the second signal may be two independent signals, and the fourth signal may be an enhanced signal combined with the second signal, that is, the fourth signal includes part of the content of the second signal.
  • the first device can determine the second channel response based on the third signal, determine the first channel response based on the first signal, and then determine the first symbol transmitted by the second device based on the first channel response and the second channel response.
  • the first device or the third device may determine the second channel response based on the third signal, determine the first channel response based on the first signal, and finally determine the first symbol transmitted by the second device based on the first channel response and the second channel response.
  • the device that determines the channel response may be the same as or different from the device that determines the first symbol, and no further limitation is made here.
  • the first channel response and the second channel response may include a gain value and a delay.
  • the above-mentioned first delay configuration can be used to instruct some second devices not to send the first target signal based on the delay offset value; it can also be used to instruct some second devices to send the first target signal based on the delay offset value.
  • the first target signal is sent based on the delay offset value, so that different second devices can have different delays, ensuring that the first device can identify different second devices based on the delay.
  • the above device identification information may be referred to as a device identification or a second device identification.
  • a first message is received from a second device by a first device, the first message is used to indicate the device identification information of the second device, and the first message is a message that the second device does not send based on the delay offset value; the first device determines the device identification information of the second device and the first delay of the second device based on the first message; wherein the first delay is used to determine the first delay configuration, the first delay configuration is the delay configuration of the second device, the first delay configuration is used to determine the sending time of the first target signal, the first target signal is a signal sent by the second device based on the second target signal received from the first target device, and the first target device includes the first device or the third device.
  • different second devices can have different delays, and different channel responses can be determined by using the delay differences of different second devices, and the corresponding information to be transmitted can be obtained based on the channel response demodulation, so that multiple devices can share the same physical resources for parallel and concurrent transmission, thereby improving the transmission efficiency.
  • the embodiment of the present application can improve the probability of successful access and reduce overhead such as delay and energy consumption.
  • the first delay configuration may be determined by the first device, or by the third device.
  • the first device needs to report the corresponding information. For example, after the first device determines the device identification information and the first delay of the second device based on the first message, the method further includes:
  • the first device sends a second message to the third device, where the second message is used to indicate device identification information of the second device and a first delay of the second device.
  • the first message and/or the second message is also used to indicate a delay offset value set supported by the second device or a delay offset value range supported by the second device.
  • the first device or the third device can configure the corresponding first delay offset based on the delay offset value set or delay offset value range supported by the second device, thereby ensuring the reliability of the delay offset value configuration.
  • the first delay configuration is used to update the delay configuration in the first configuration and/or the delay configuration in the second configuration, wherein the first configuration is used to send a channel estimation signal, and the delay configuration in the first configuration is used to determine the sending time of the channel estimation signal; the second configuration is used to send a data transmission signal, and the delay configuration in the second configuration is used to determine the sending time of the data transmission signal, and the channel estimation signal and/or the data transmission signal can be used to carry the first message.
  • the first configuration includes at least one of the following:
  • the second target information is used to autonomously generate a fifth symbol according to a second radio frequency signal in the fourth signal
  • silence parameter is used to determine whether to send the first message
  • the second target signal is the second signal or the fourth signal, the second signal is used to send the data transmission signal; the first part of the fourth signal is used to indicate the start of sending the second part of the fourth signal, the second part of the fourth signal is used to generate the channel estimation signal, and the second part of the fourth signal includes the fifth symbol or the second RF signal.
  • the above-mentioned second target information may include at least one of the following: the content of the third symbol, the interval of the third symbol, the modulation method of the third symbol (such as On-Off Keying (OOK), ASK, FSK, etc.) and the mapping relationship between the third symbol and the reflection coefficient.
  • the modulation method of the third symbol such as On-Off Keying (OOK), ASK, FSK, etc.
  • the above-mentioned silence parameters may include whether to randomly silence when reporting device identification information and the probability of silence.
  • the above-mentioned parameters associated with frequency domain access may include at least one of the following: whether to adopt frequency domain access, and a frequency offset value of the third signal relative to the second signal.
  • the above parameters associated with power domain access may include at least one of the following: whether to adopt power domain access, the power of sending the third signal, and the absolute value of the reflection coefficient used to send the third signal.
  • the above-mentioned parameters associated with polarization domain access may include at least one of the following: whether to adopt polarization domain access, the polarization direction of the antenna for sending the third signal, and the antenna number/index value for sending the third signal.
  • the second configuration includes at least one of the following:
  • the center frequency of the data transmission signal or the frequency offset between the data transmission signal and a specific reference signal
  • the quiet parameter being used to autonomously generate a third symbol according to the first radio frequency signal in the second signal
  • Target characteristic information the target characteristic information is used to indicate that the data transmission signal has ended or that the second device has ended sending the information to be transmitted;
  • the second target signal is the second signal or the fourth signal, the second signal is used to send the data transmission signal; the first part of the fourth signal is used to indicate the start of sending the second part of the fourth signal, and the second part of the fourth signal is used to generate the channel estimation signal.
  • the adjustment interval of the reflection coefficient can be understood as how long it takes to modulate a symbol, such as according to the phase.
  • the value is defined by modulating 1 first symbol for every k second symbols; or defined according to the absolute value of time.
  • the first configuration and the second configuration do not include a modulation symbol set, a signal amplification factor, and a relay mode.
  • the first configuration and the second configuration have the following differences: deleting reflection coefficient related parameters; adding modulation symbol sets, signal amplification factors, and relay modes.
  • the first configuration includes at least one of the following:
  • the second target information is used to autonomously generate a fifth symbol according to a second radio frequency signal in the fourth signal
  • silence parameter is used to determine whether to send the first message
  • the second target signal is the second signal or the fourth signal, the second signal is used to send the data transmission signal; the first part of the fourth signal is used to indicate the start of sending the second part of the fourth signal, the second part of the fourth signal is used to generate the channel estimation signal, and the second part of the fourth signal includes the fifth symbol or the second RF signal.
  • the second configuration includes at least one of the following:
  • the center frequency of the data transmission signal or the frequency offset between the data transmission signal and a specific reference signal
  • the quiet parameter being used to autonomously generate a third symbol according to the first radio frequency signal in the second signal
  • Target characteristic information the target characteristic information is used to indicate that the data transmission signal has ended or that the second device has ended sending the information to be transmitted;
  • the second target signal is the second signal or the fourth signal, the second signal is used to send the data transmission signal; the first part of the fourth signal is used to indicate the start of sending the second part of the fourth signal, and the second part of the fourth signal is used to generate the channel estimation signal.
  • the first configuration and the second configuration have the following differences: delete the reflection coefficient related parameters; add the modulation symbol set, the signal amplification factor and the relay mode. Delete the reflection coefficient related parameters; add the modulation symbol set; include part or all of the second parameters and the first parameters.
  • the first configuration includes at least one of the following:
  • the second target information is used to autonomously generate a fifth symbol according to a second radio frequency signal in the fourth signal
  • silence parameter is used to determine whether to send the first message
  • the second target signal is the second signal or the fourth signal, the second signal is used to send the data transmission signal; the first part of the fourth signal is used to indicate the start of sending the second part of the fourth signal, the second part of the fourth signal is used to generate the channel estimation signal, and the second part of the fourth signal includes the fifth symbol or the second RF signal.
  • the second configuration includes at least one of the following:
  • the center frequency of the data transmission signal or the frequency offset between the data transmission signal and a specific reference signal
  • the quiet parameter being used to autonomously generate a third symbol according to the first radio frequency signal in the second signal
  • Target characteristic information the target characteristic information is used to indicate that the data transmission signal has ended or that the second device has ended sending the information to be transmitted;
  • the second target signal is the second signal or the fourth signal, the second signal is used to send the data transmission signal; the first part of the fourth signal is used to indicate the start of sending the second part of the fourth signal, The second part of the fourth signal is used to generate the channel estimation signal.
  • the first parameter may be understood as a parameter for receiving a first signal, and the first parameter includes at least one of the following:
  • the third signal sends the length or number of symbols of the third symbol
  • the third signal sends a symbol interval of a third symbol
  • the third signal sends a waveform of a third symbol
  • the third signal sends the center frequency of the third symbol
  • the third signal sends a bandwidth of a third symbol
  • the third symbol is used to generate the first signal.
  • the second parameter may be understood as a parameter for receiving the third signal, and may specifically include at least one of the following:
  • a modulation mode of sending the fifth symbol of the fourth signal such as PSK, OOK, FSK, etc.
  • the fourth signal sends the length or number of symbols of the fifth symbol
  • the fourth signal sends a symbol interval of a fifth symbol
  • the fourth signal sends a waveform of the fifth symbol, such as a single-carrier square wave, a rolled-off cosine wave, a sinc wave, a sine wave, etc.; multi-carrier orthogonal frequency division multiplexing (Orthogonal frequency division multiplexing, OFDM), (Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing, DFT-S-OFDM), orthogonal time-frequency space (Orthogonal Time Frequency Space, OTFS), etc.;
  • OFDM Orthogonal frequency division multiplexing
  • DFT-S-OFDM Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing
  • OTFS Orthogonal time-frequency space
  • the fourth signal sends the center frequency of the fifth symbol
  • the fourth signal transmits a bandwidth of the fifth symbol
  • the method before the first device receives the first message from the second device, the method further includes:
  • the first device sends a third message to the second device, where the third message is used to indicate a first target configuration, where the first target configuration is used to send the first message, and the first target configuration includes a silence parameter used to determine whether to send the first message.
  • the first device may send the first target configuration to enable the second device to report the device identification information.
  • the third device may send the second target configuration to the second device to enable the second device to report the device identification information.
  • the method further includes:
  • the first device sends a fourth message to the second device, where the fourth message is used to instruct the second device to stop sending the first message.
  • the fourth information can be sent to the second device so that the second device stops sending the first message in the future. Stopping the sending of the first message can be understood as not sending the first message in the future, or as stopping reporting the device identification information in the future. In this way, the influence of the identified second device on other unidentified second devices can be avoided, while reducing unnecessary waste of resources of the second device.
  • the method further includes:
  • the first device receives a fifth message from the second target device, where the fifth message is used to indicate device identification information of the second target device, and the fifth message is a message sent based on the first delay offset value;
  • the first device determines, based on the fifth message, device identification information of the second target device and a first delay of the second target device;
  • the second target device is a device in the first set
  • the first set is a set of second devices in the second set whose device identification is not identified
  • the second set is a set of second devices corresponding to all device identification information to be identified
  • the first delay of the second target device is the difference between the receiving delay of the fifth message and the first delay offset value.
  • the first device has learned the device identification information of all second devices.
  • the first device needs to perform signal interaction with M specified second devices, and the M specified second devices are referred to as the second set.
  • the M second devices can be indicated by a third device or a network side device, and no further limitation is made here.
  • the second device corresponding to the device identification information identified based on the above-mentioned first message can be understood as the second device corresponding to the device identification information that can be identified without the delay offset value. If the second device corresponding to the device identification information cannot be identified based on the first message, the difference in the first delay between different second devices can be increased by configuring the first delay offset value, thereby facilitating the identification of the first device. That is to say, firstly, the first message is used to obtain the second device that can be identified without the delay offset value, and the fifth message is used to obtain the second device that can be identified by the delay offset value, thereby obtaining the corresponding relationship between each second device and the first delay. Finally, based on the corresponding relationship between each second device and the first delay, the corresponding first delay configuration can be configured so that the first target signal sent by each second device has a different receiving delay, ensuring that the first device can identify the first target signal sent by each second device.
  • the method further includes:
  • the first device sends a sixth message to the third device, where the sixth message is used to indicate device identification information of the second target device and a first delay of the second target device.
  • the third device may also determine the first delay configuration of the second device and send a response to the first delay configuration of the second device. information and a first delay of the second target device.
  • the fifth message and/or the sixth message is further used to indicate a delay offset value set supported by the second target device or a delay offset value range supported by the second target device.
  • the first device or the third device can configure the corresponding first delay bias based on the delay bias value set or delay bias value range supported by the second target device, thereby ensuring the reliability of the delay bias value configuration.
  • the method before the first device receives the fifth message from the second target device, the method further includes:
  • the first device sends a second target configuration to the second target device, the second target configuration is used to send the fifth message, and the second target configuration is used to determine a second delay configuration and a silence parameter of whether to send the fifth message, and the second delay configuration is a delay configuration used to determine the first delay offset value.
  • the second target configuration can be understood as configuration information for updating the first configuration and/or the second configuration.
  • the second device can update the first configuration and/or the second configuration, and then send a fifth message to report the device identification information based on the updated first configuration or the second configuration.
  • the second target configuration can also be sent by the third device.
  • the method further includes:
  • the first device receives a seventh message from a third target device, where the seventh message is used to indicate device identification information of the third target device, and the seventh message is a message sent by the third target device based on a second delay offset value;
  • the first device determines, based on the seventh message, device identification information of the third target device and a first delay of the third target device;
  • the third target device is a second device whose device identification information is not recognized by the first device based on the first message, and the first delay of the third target device is the difference between the reception delay of the seventh message and the second delay offset value.
  • the first device does not know in advance the device identification of the second device to be transmitted.
  • this may also include a situation where the first device knows in advance the device identification of the second device to be transmitted.
  • the second device corresponding to the device identification information identified based on the above-mentioned first message can be understood as the second device corresponding to the device identification information that can be identified without the delay offset value. If the second device corresponding to the device identification information cannot be identified based on the first message, the difference in the first delay between different second devices can be increased by configuring the second delay offset value, thereby facilitating the identification of the first device. That is to say, first use the first message to obtain the second device that can be identified without the delay offset value, and then use the seventh message to obtain the second device that can be identified by the delay offset value, thereby obtaining the corresponding relationship between each second device and the first delay. Finally, based on the corresponding relationship between each second device and the first delay, the corresponding first delay configuration can be configured so that the first target signal sent by each second device has a different receiving delay, ensuring that the first device can identify the first target signal sent by each second device.
  • the method further includes:
  • the first device sends an eighth message to the third device, where the eighth message is used to indicate device identification information of the third target device and a first delay of the third target device.
  • the third device may also determine the first delay configuration of the second device and send a response first delay configuration to the second device.
  • the first device needs to send the device identification information of the third target device and the first delay of the third target device to the third device.
  • the seventh message and/or the eighth message is further used to indicate a delay offset value set supported by the third target device or a delay offset value range supported by the third target device.
  • the first device or the third device can configure the corresponding first delay bias based on the delay bias value set or delay bias value range supported by the third target device, thereby ensuring the reliability of the delay bias value configuration.
  • the method before the first device receives the seventh message from the second target device, the method further includes:
  • the first device sends a ninth message, where the ninth message is used to instruct all second devices to report device identification information through the seventh message based on the third target configuration;
  • the first device sends a tenth message to the fourth target device, where the tenth message is used to instruct the fourth target device not to report device identification information subsequently;
  • the third target configuration is used by the third target device to determine the third delay configuration and the silence parameter of whether to send the seventh message, and the third delay configuration is the delay configuration used to determine the second delay offset value; the fourth target device is the second device corresponding to the currently identified device identification information.
  • the ninth message can be understood as an activation command, which is used to activate all second devices to report device identification information based on the third target configuration, and then instruct the fourth target device not to report device identification information through the tenth message.
  • the activation command can be used only to activate the reporting of device identification using the third target configuration, and use additional reporting signaling to instruct all second devices to report device identification information, wherein the priority of the tenth message is higher than the priority of the reporting signaling, so the fourth target device that receives the tenth message can ignore the reporting signaling after receiving the reporting signaling.
  • the method further includes:
  • the first device determines, based on the first delay of the fifth target device, a first delay configuration of the fifth target device, wherein the fifth target device is a device in a third set, the third set including a set of all devices whose device identification information has been identified or the third set including a set of second devices corresponding to other device identification information in the set of devices whose device identification information has been identified except the device identification information identified based on the first message;
  • the first device sends an eleventh message to the fifth target device, where the eleventh message is used to indicate the first delay configuration of the fifth target device and the device identification information of the fifth target device.
  • the fifth target device can be understood as a second device that cannot be distinguished based on the original delay. In this case, an additional first delay configuration is required to enable the first device to recognize signals sent by different fifth target devices.
  • the fifth target device can also be understood as all the identified devices, and then a delay offset value is configured for some or all of the second devices.
  • the delay configuration includes at least one of the following delay configurations:
  • Embodiment 1 Single-base BSC multiple access
  • the RF source and the receiving end are considered to be the same device, which may be a base station, a reader/writer, a terminal device, a relay, etc., hereinafter referred to as the first device, and the BSC device is the second device.
  • the second device sends a third signal, and the first device detects the third signal to perform channel estimation. Specifically, the following process may be included:
  • the first device sends a fourth signal to the second device, the fourth signal comprising a first part and a second part, wherein the first part includes a fourth symbol and the second part includes a fifth symbol or a CW.
  • the second device After the second device detects that the first part (or fourth symbol) of the fourth signal ends, it sends a third signal in a first configuration, wherein the third signal is generated by backscattering the second part of the fourth signal.
  • the first configuration may be indicated by the fourth symbol, or an agreed default value.
  • the first device receives the third signal, and obtains a second channel response (including a gain value and a delay) which is initiated from the first device, backscattered by the (each) second device, and reaches the first device.
  • a second channel response including a gain value and a delay
  • the second device sends the first signal, and the first device obtains the information sent by the second device based on the received third signal and the first signal.
  • the specific process includes the following:
  • the first device sends a second signal to the second device, the second signal including a first part and a second part, wherein the first part includes a second symbol and the second part includes a third symbol or a CW.
  • the second device After the second device detects that the first part (or second symbol) of the second signal has ended, it sends the first signal in a second configuration, wherein the first signal carries the information to be transmitted by the second device (i.e., the first symbol), and is generated by backscattering the second part of the second signal.
  • the second configuration may be indicated by a second symbol, or an agreed default value.
  • the second symbol is optional, and its function is to inform the second device when to start backscattering the signal, or to serve as a start symbol.
  • the second signal and the fourth signal are merged, that is, an enhanced fourth signal is used, and when the fourth symbol, the fifth symbol, and the third symbol are placed consecutively, there is no second symbol.
  • the first device receives the first signal, and obtains a first channel response (including a gain value and a delay) which is initiated from the first device, backscattered by the (each) second device, and reaches the first device.
  • a first channel response including a gain value and a delay
  • the first device obtains the first symbol according to the second channel response and the first channel response, and completes the detection of the information sent by the second device.
  • the fourth signal and the second signal can be combined, that is, an enhanced fourth signal is sent, including a first part, a second part and a third part, which respectively contain a fourth symbol, a fifth symbol or CW, a third symbol or CW, and no second symbol, wherein the second configuration and/or the first configuration can be indicated by the fourth symbol, or an agreed default value.
  • the possible placements include the following two situations:
  • the first part, the second part and the third part are placed continuously.
  • the second device detects that the first part is finished, it sends the third signal and the first signal successively.
  • the first part and the second part are placed continuously, and there is a first interval between the second part and the third part.
  • the second device detects that the first part ends, it sends the third signal and then sends the first signal after the first interval.
  • the first interval is an optional parameter of the second configuration.
  • Embodiment 2 dual-base BSC multiple access.
  • the RF source and the receiving end are considered to be different devices, which can be a base station, a reader, a terminal device, and a relay, etc.
  • the receiving end is hereinafter referred to as the first device, the RF source is called the third device, and the BSC device is called the second device.
  • the second device sends a third signal, and the first device detects the third signal to perform channel estimation. Specifically, the following process may be included:
  • the third device sends a fourth signal to the second device, the fourth signal comprising a first part and a second part, wherein the first part includes the fourth symbol and the second part includes the fifth symbol or the CW.
  • the second device After the second device detects that the first part (or fourth symbol) of the fourth signal ends, it sends a third signal in a first configuration, wherein the third signal is generated by backscattering the second part of the fourth signal.
  • the first configuration may be indicated by the fourth symbol, or an agreed default value.
  • the first device receives the third signal, which may specifically include the following situations:
  • Case 1 (the second channel response is determined by the first device): The first device obtains the second channel response (including gain value and delay) starting from the third device, backscattered by (each) second device, and reaching the first device based on the second parameter.
  • the third device before sending the fourth signal, the third device sends message 1 to the first device, indicating the second parameter required to obtain the second channel response; or, the first device detects the fourth symbol and obtains the second parameter; or, the second parameter is an agreed value.
  • the first device sends message 2 to the third device, and the message 2 carries the second channel response.
  • Case 2 (the second channel response is determined by the third device): the first device sends a message 3 to the third device, wherein the message 3 carries part or all of the content of the third signal; the third device obtains the second channel response (including gain value and delay) that starts from the third device, passes through (each) second device backscattering, and reaches the first device.
  • the third device sends a message 4 to the first device, wherein the message 4 carries the second channel response.
  • the second device sends the first signal, and the first or first device obtains the information sent by the first device according to the received third signal and the first signal.
  • the process includes the following:
  • the third device sends a second signal to the second device, wherein the second signal includes a first part and a second part.
  • One portion contains the second symbol and the second portion contains the third symbol or CW.
  • the first signal is sent in a second configuration, wherein the first signal carries information to be transmitted by the second device (first symbol) and is generated by backscattering the second part of the second signal.
  • the second configuration may be indicated by the second symbol or an agreed default value.
  • the first device receives the first signal, which may specifically include the following situations:
  • Case 1 the first device determines the first channel response and the first symbol: the first device obtains, according to the first parameter, the first channel response (including the gain value and the delay) which starts from the third device, passes through the (each) second device and is backscattered to the first device; the first device obtains the first symbol according to the second channel response and the first channel response, and completes the detection of the information sent by the first device.
  • the first device sends a message 5 to the third device, where the message 5 carries the first symbol;
  • the third device before sending the second signal, the third device sends a message 6 to the first device, indicating a first parameter required to obtain a first channel response; or, the first device detects the second symbol to obtain the first parameter; or, the first parameter is an agreed value.
  • Case 2 (the first device determines the first channel response, and the third device determines the first symbol): the first device obtains, based on the first parameter, the first channel response (including a gain value and a delay) that starts from the third device, passes through backscattering of the (each) second device, and reaches the first device; after obtaining the first channel response, the first device sends a message 7 to the third device, and the message 7 carries the first channel response; the third device obtains the first symbol based on the second channel response and the first channel response, and completes the detection of the information sent by the first device.
  • the first device obtains, based on the first parameter, the first channel response (including a gain value and a delay) that starts from the third device, passes through backscattering of the (each) second device, and reaches the first device; after obtaining the first channel response, the first device sends a message 7 to the third device, and the message 7 carries the first channel response; the third device obtains the first symbol based on
  • the third device sends a message 8 to the first device, where the message 8 carries the first symbol.
  • the third device before sending the second signal, the third device sends a message 6 to the first device, indicating a first parameter required to obtain a first channel response; or, the first device detects the second symbol to obtain the first parameter; or, the first parameter is an agreed value.
  • Case 3 (the first channel response and the first symbol are determined by the third device): the first device sends a message 9 to the third device, wherein the message 9 carries part or all of the content of the first signal; the third device obtains the first channel response (including a gain value and a delay) which starts from the third device, is backscattered by the (each) second device, and reaches the first device; the third device obtains the first symbol based on the second channel response and the first channel response, and completes the detection of the information sent by the first device.
  • the first device sends a message 9 to the third device, wherein the message 9 carries part or all of the content of the first signal
  • the third device obtains the first channel response (including a gain value and a delay) which starts from the third device, is backscattered by the (each) second device, and reaches the first device
  • the third device obtains the first symbol based on the second channel response and the first channel response, and completes the detection of the information sent by the first device.
  • the third device sends a message 10 to the first device, where the message 10 carries the first symbol.
  • Case 4 (the first channel response is determined by the third device, and the first device determines the first symbol): the first device sends a message 9 to the third device, wherein the message 9 carries part or all of the content of the first signal; the third device obtains a first channel response (including a gain value and a delay) which starts from the third device, is backscattered by (each) the second device, and reaches the first device; after obtaining the first channel response, the third device sends a message 11 to the first device, wherein the message 11 carries the first channel response; the first device obtains the first symbol based on the second channel response and the first channel response, and completes the detection of the information sent by the first device.
  • the first device sends a message 9 to the third device, wherein the message 9 carries part or all of the content of the first signal
  • the third device obtains a first channel response (including a gain value and a delay) which starts from the third device, is backscattered by (each) the second device, and
  • the first device sends a message 12 to the third device, wherein the message 12 carries the first A symbol.
  • Embodiment 1 and Embodiment 2 of the basic access procedure are considered.
  • the adjustment of the training sequence (i.e., the third symbol of the second signal) by the first device is transparent to the BSC device (or "backscattering" device such as Relay), and the parameters related to the BSC device (adjustment interval of the reflection coefficient, i.e., length of the subsequence) are actually already included in the second configuration; whether to add blank symbols belongs to the specific content of the symbols of the training sequence (i.e., the content of the second symbol), which only needs to be known by the first device (Example 1) or the third device (Example 2), and the relevant parameters are also included in the first parameters.
  • the first device can determine how to adjust the training sequence, and then determine and indicate the second configuration and the first parameter accordingly.
  • Embodiment 1 and Embodiment 2 of the basic access process are also considered.
  • the first device can determine whether it needs to solve the signal aliasing problem by adding a delay offset, but since the delay offset needs to be modified based on the original delay, the first device needs to indicate the delay offset value to be used to each device (per device), which requires the first device to obtain the device identification information of the second device through some processes, and then the first device can indicate the delay offset value to be used in the second configuration indicated to the second device.
  • the first device may also re-enter the channel estimation phase and indicate the updated first configuration, so that the receiving delay values in the channel estimation and data transmission phases are consistent, which facilitates processing.
  • the original first configuration and the second configuration (as well as the first parameter and the second parameter to be used by the receiving end) need to be modified to include parameters related to the delay offset. This is described in detail below.
  • the scenario of embodiment 1 of the basic access process is considered, that is, a single-base BSC, wherein the RF source (ie, Tx) and the receiving end (ie, Rx) are the same device, which may be a base station, a reader/writer, a terminal device (such as UE), a relay, etc., hereinafter referred to as the first device, and the BSC device is the second device.
  • the RF source ie, Tx
  • Rx the receiving end
  • the BSC device is the second device.
  • the first device sends a message A1 to instruct the second device to report the second device ID or ID-related information (hereinafter referred to as the second device identifier) using a basic delay domain multiple access method, and at the same time indicates a first configuration regarding random silence (ie, silence parameters in the first configuration).
  • the second device identifier the second device ID or ID-related information
  • the second device sends message A2, where message A2 carries the second device's own identification.
  • message A2 may also carry a set or range of delay offset values available to the second device.
  • message A1 may be carried by a separate signaling, or carried by a signal (such as the third signal, the first signal) sent by the first device to assist the second device in accessing (such as the fourth symbol of the second signal, the second symbol of the second signal, etc.).
  • a signal such as the third signal, the first signal
  • message A1 may be carried by a signal (such as the third signal, the first signal) sent by the first device to assist the second device in accessing (such as the fourth symbol of the second signal, the second symbol of the second signal, etc.).
  • the first device attempts to detect all signals sent by the second device that carry message A2, and decodes the successfully decoded message A2 That is, the second device identification set (hereinafter referred to as set 1) that is successfully identified, and the relationship between the second device and the delay is determined and recorded.
  • set 1 the second device identification set
  • the first device sends a message A3 to instruct the second device belonging to set 1 to remain silent subsequently and not to continue reporting its own identification (ie, remain silent after identification).
  • the first configuration may be updated.
  • the first device sends message A4 to indicate whether the second device enables delay bias and the delay bias value (or set, or related parameters for randomly generating delay bias values) adopted by it, wherein message A4 carries the second device identifier, and the second configuration associated with the delay bias (i.e., the delay configuration in the second configuration) and/or the first configuration associated with the delay bias (i.e., the delay configuration in the first configuration).
  • the second configuration associated with the delay offset is directly indicated, data transmission can be started subsequently without re-estimating the channel; conversely, if the first configuration associated with the delay offset is indicated, the channel estimation is re-performed subsequently. For the randomly selected delay offset value, the channel estimation must be re-performed to determine the true delay value of the second device. Therefore, the first configuration associated with the delay offset is indicated at this time.
  • the scenario of embodiment 2 of the basic access process is considered, that is, a dual-base BSC, wherein the RF source and the receiving end are different devices, which may be a base station, a reader/writer, a terminal device (such as UE), a relay, etc., hereinafter referred to as the receiving end is the first device, the RF source is the third device, and the BSC device is the second device.
  • the following processes may be included:
  • the third device sends a message A1 to instruct the second device to report the second device ID or ID-related information (hereinafter referred to as the second device identifier) using a basic delay domain multiple access method, and indicates the first configuration of random silence (i.e., the silence parameter in the first configuration);
  • the second device sends message A2, where message A2 carries the second device's own identification.
  • message A2 may also carry a set or range of delay offset values available to the second device.
  • message A1 may be carried by a separate signaling, or carried by a signal (such as a third signal, a first signal) sent by a third device to assist the second device in accessing (such as the fourth symbol of the second signal, the second symbol of the second signal, etc.).
  • a signal such as a third signal, a first signal
  • message A1 may be carried by a separate signaling, or carried by a signal (such as a third signal, a first signal) sent by a third device to assist the second device in accessing (such as the fourth symbol of the second signal, the second symbol of the second signal, etc.).
  • the first device attempts to detect all signals carrying message A2 sent by the second device.
  • the successfully decoded message A2 is the successfully identified second device identification set (hereinafter referred to as set 1), and the relationship between the second device and the delay is determined and recorded.
  • the first device sends a message A3, indicating the device identification, delay, and (optionally) available delay offset value set or range belonging to set 1.
  • the first device sends a message A4 to instruct the second device belonging to set 1 to remain silent subsequently and not to continue reporting its own identification (ie, remain silent after identification).
  • the first configuration may be updated.
  • the third device sends message A4 to indicate whether the second device enables delay bias and the delay bias value (or set, or randomly generated related parameters) adopted by it, wherein message A4 carries the second device identifier, and the second configuration associated with the delay bias (i.e., the delay configuration in the second configuration) and/or the first configuration associated with the delay bias (i.e., the delay configuration in the first configuration).
  • the second configuration associated with the delay offset is directly indicated, data transmission can be started subsequently without re-estimating the channel; conversely, if the first configuration associated with the delay offset is indicated, the channel estimation is re-performed subsequently. For the randomly selected delay offset value, the channel estimation must be re-performed to determine the true delay value of the second device. Therefore, the first configuration associated with the delay offset is indicated at this time.
  • the third device sends a message A5, instructing the third device to update the first parameter associated with the delay offset and/or the second parameter associated with the delay offset.
  • a configuration process for the delay bias method is given, which is applicable to the case where the third device knows the device identifications of all second devices. Also for the sake of simplicity, this embodiment does not expand the signaling interaction between the first device and the third device, and assumes that the first device and the third device know each other's information in a manner similar to that described in Example 2.
  • the delay bias configuration process is as follows:
  • the third device sends a message A1 to instruct the second device to use the basic delay domain multiple access method to report the second device ID or ID-related information (hereinafter referred to as the second device identification)
  • the second device sends message A2, where message A2 carries the second device's own identification.
  • message A2 may also carry a set or range of delay offset values available to the second device.
  • message A1 may be carried by a separate signaling, or carried by a signal (such as a third signal, a first signal) sent by a third device to assist the second device in accessing (such as the fourth symbol of the second signal, the second symbol of the second signal, etc.).
  • a signal such as a third signal, a first signal
  • message A1 may be carried by a separate signaling, or carried by a signal (such as a third signal, a first signal) sent by a third device to assist the second device in accessing (such as the fourth symbol of the second signal, the second symbol of the second signal, etc.).
  • the first device attempts to detect all signals carrying message A2 sent by the second device.
  • the message A2 that is successfully decoded (Explanation 3) is the successfully identified second device identification set (hereinafter referred to as set 1)
  • the third device determines a set of second device identifiers that have not been successfully identified (hereinafter referred to as set 3) based on an existing set of all second device identifiers (hereinafter referred to as set 2) (owned by the third device or indicated by a network-side device).
  • the third device sends message A3, instructing the devices belonging to the third set to adopt delay bias when subsequently accessing, wherein message A3 carries the first configuration associated with the delay bias and the second configuration associated with the delay bias, and the first configuration regarding random silence (it should be understood that the device determines whether to be silent in this reporting identification during the channel estimation stage, so only the first configuration exists and parameters related to random silence).
  • the third device sends a message A4, instructing the second device belonging to set 3 to report its own identification.
  • the second device sends a message A5, where the message A5 carries the second device's own identification.
  • message A5 also needs to carry the delay offset value used by the second device.
  • the first device detects and attempts to detect the signal carrying message A5 sent by the second device, decodes the successfully decoded message A5 corresponding to the second device identifier (hereinafter referred to as set 4), and removes it from its set 3, and then determines and records the relationship between the second device and the original delay (i.e., the difference between the receiving delay and the delay offset value) based on the relationship between message A5 and the receiving delay, and the second device identifier (and delay offset value) carried by message A5.
  • set 4 the second device identifier
  • the third device sends message A6, instructing the second device belonging to set 3 to subsequently access using delay bias, where message A6 carries the second device identifier (in order to implement per-device configuration), as well as the first configuration associated with the delay bias and the second configuration associated with the delay bias.
  • the codeword configuration process of the unknown delay bias of the third device is considered.
  • this process can also be used for known situations, but it will generate unnecessary overhead.
  • this embodiment does not expand the signaling interaction between the third device and the first device, and assumes that the third device and the first device know each other's information in a manner similar to that described in Example 2.
  • the third device sends a message A1 to instruct the second device to report the second device ID or ID-related information (hereinafter referred to as the second device identification) using a basic delay domain multiple access method.
  • the second device sends message A2, where message A2 carries the second device's own identification.
  • message A2 may also carry a set or range of delay offset values available to the second device.
  • message A1 may be carried by a separate signaling, or carried by a signal (such as a third signal, a first signal) sent by a third device to assist the second device in accessing (such as the fourth symbol of the second signal, the second symbol of the second signal, etc.).
  • a signal such as a third signal, a first signal
  • message A1 may be carried by a separate signaling, or carried by a signal (such as a third signal, a first signal) sent by a third device to assist the second device in accessing (such as the fourth symbol of the second signal, the second symbol of the second signal, etc.).
  • the first device attempts to detect all signals sent by the second device that carry the message A2.
  • the message A2 that is successfully decoded is the successfully identified second device identifier (hereinafter referred to as set 1).
  • the third device sends message A3 to instruct all devices to use delay offset for subsequent access, wherein message A3 carries the first configuration associated with the delay offset and the second configuration associated with the delay offset, as well as the first configuration regarding random silence.
  • the third device sends a message A4 to instruct the second device belonging to set 1 to ignore the message A3 and not to continue to report its own identification (ie, remain silent after identification).
  • the third device sends a message A5 to instruct the second device to report its own identification.
  • the second device sends a message A6, where the message A6 carries the second device's own identification and the delay offset value used by the second device.
  • the third device can only instruct the second device to randomly select a device from a delay offset set. Select a delay offset value, so reporting the delay offset value is mandatory.
  • the first device detects and attempts to detect the signal carrying message A6 sent by the second device.
  • the successfully decoded message A6 is the successfully identified second device identification set (hereinafter referred to as set 2, and set 2 is continuously added during the iteration process); then, based on the relationship between message A6 and the delay, and the second device identification carried by message A6, the relationship between the second device and the delay is determined and recorded.
  • the third device sends message A7, indicating that the second device in set 1 that is not identified based on message A will subsequently access using delay bias, wherein message A7 carries the second device identifier, and the first configuration related to the delay bias and the second configuration related to the delay bias.
  • an embodiment of the present application further provides a transmission method.
  • the transmission method includes:
  • Step 701 The second device sends a first message to the first device, where the first message is used to indicate device identification information of the second device, the first message is used to determine the identification information of the second device and a first delay of the second device, and the first message is a message sent by the second device not based on a delay offset value;
  • the first delay is used to determine a first delay configuration
  • the first delay configuration is the delay configuration of the second device
  • the first delay configuration is used to determine the sending time of a first target signal
  • the first target signal is a signal sent by the second device based on a second target signal received from the first target device
  • the first target device includes the first device or the third device.
  • the first message is also used to indicate a delay offset value set supported by the second device or a delay offset value range supported by the second device.
  • the first target signal includes a channel estimation signal used for channel estimation or a data transmission signal used for data transmission.
  • the first delay configuration is used to update the delay configuration in the first configuration and/or the delay configuration in the second configuration, wherein the first configuration is used to send a channel estimation signal, and the delay configuration in the first configuration is used to determine the sending time of the channel estimation signal; the second configuration is used to send a data transmission signal, and the delay configuration in the second configuration is used to determine the sending time of the data transmission signal, and the channel estimation signal and/or the data transmission signal can be used to carry the first message.
  • the first configuration includes at least one of the following:
  • the second target information is used to autonomously generate a fifth symbol according to a second radio frequency signal in the fourth signal
  • silence parameter is used to determine whether to send the first message
  • the second target signal is the second signal or the fourth signal, the second signal is used to send the data transmission signal; the first part of the fourth signal is used to indicate the start of sending the second part of the fourth signal, the second part of the fourth signal is used to generate the channel estimation signal, and the second part of the fourth signal includes the fifth symbol or the second RF signal.
  • the second configuration includes at least one of the following:
  • the center frequency of the data transmission signal or the frequency offset between the data transmission signal and a specific reference signal
  • the quiet parameter being used to autonomously generate a third symbol according to the first radio frequency signal in the second signal
  • Target characteristic information the target characteristic information is used to indicate that the data transmission signal has ended or that the second device has ended sending the information to be transmitted;
  • the second target signal is the second signal or the fourth signal, the second signal is used to send the data transmission signal; the first part of the fourth signal is used to indicate the start of sending the second part of the fourth signal, and the second part of the fourth signal is used to generate the channel estimation signal.
  • the method before the second device sends the first message to the first device, the method further includes:
  • the second device receives a third message from the first target device, where the third message is used to indicate a first target configuration, where the first target configuration is used to send the first message, and the first target configuration includes a silence parameter used to determine whether to send the first message.
  • the method further includes:
  • the second device receives a fourth message from the first device or the third device, where the fourth message is used to instruct the second device to stop sending the first message.
  • the method further includes:
  • the second device sends a fifth message to the first device, where the fifth message is used to indicate device identification information of the second device, and the fifth message is a message sent based on the first delay offset value;
  • the second device is a device in the first set, the first set is a set of second devices whose device identifications are not identified in the second set, and the second set is a set of second devices corresponding to all device identification information to be identified.
  • the fifth message is also used to indicate a delay offset value set supported by the second device or a delay offset value range supported by the second device.
  • the method before the second device sends the fifth message to the first device, the method further includes:
  • the second device receives a second target configuration from the first target device, the second target configuration is used to send the fifth message, and the second target configuration is used to determine a second delay configuration and a silence parameter of whether to send the fifth message, and the second delay configuration is a delay configuration used to determine the first delay offset value.
  • the method further includes:
  • the second device sends a seventh message to the first target device, where the seventh message is used to indicate device identification information of the second device, and the seventh message is a message sent by the second device based on a second delay offset value;
  • the second device is a second device whose device identification information is not recognized by the first device based on the first message.
  • the seventh message is also used to indicate a delay offset value set supported by the second device or a delay offset value range supported by the second device.
  • the method before the second device sends the seventh message to the first target device, the method further includes:
  • the second device receives a ninth message from the first target device, where the ninth message is used to instruct all second devices to report device identification information through the seventh message based on the third target configuration;
  • the third target configuration is used by the third target device to determine a third delay configuration and a silence parameter of whether to send the seventh message, and the third delay configuration is a delay configuration used to determine the second delay offset value.
  • the delay configuration includes at least one of the following delay configurations:
  • an embodiment of the present application further provides a transmission method.
  • the transmission method includes:
  • Step 801 A third device sends a third message to a second device, where the third message is used to indicate a first target configuration, where the first target configuration is used to send a first message, and the target configuration includes a silence parameter for determining whether to send the first message, where the first message is a message that the second device does not send based on a delay offset value.
  • Step 802 The third device sends a second target signal to the second device, where the second target signal is used to send a first target signal to the first device based on a target delay configuration;
  • the first message is used to indicate the device identification information of the second device, and the first message is used by the first device to determine the identification information of the second device and the first delay of the second device;
  • the first delay is used to determine a first delay configuration, the first delay configuration is the delay configuration of the second device, the first delay configuration is used to determine the sending time of a first target signal, the first target signal is a signal sent by the second device based on the second target signal received from the first target device, and the first target device includes the first device or the third device.
  • the method further includes:
  • the third device receives a second message from the first device, where the second message is used to indicate device identification information of the second device and a first delay of the second device.
  • the first message and/or the second message is also used to indicate a delay offset value set supported by the second device or a delay offset value range supported by the second device.
  • the first target signal includes a channel estimation signal used for channel estimation or a data transmission signal used for data transmission.
  • the first delay configuration is used to update the delay configuration in the first configuration and/or the delay configuration in the second configuration, wherein the first configuration is used to send a channel estimation signal, and the delay configuration in the first configuration is used to determine the sending time of the channel estimation signal; the second configuration is used to send a data transmission signal, and the delay configuration in the second configuration is used to determine the sending time of the data transmission signal, and the channel estimation signal and/or the data transmission signal can be used to carry the first message.
  • the method further includes:
  • the third device sends a fourth message to the second device, wherein the fourth message is used to instruct the second device to stop Stop sending the first message.
  • the method further includes:
  • the third device receives a sixth message from the first device, where the sixth message is used to indicate device identification information of a second target device and a first delay of the second target device;
  • the first delay of the second target device is determined based on the fifth message sent by the second target device, the fifth message is a message sent based on the first delay bias value, the second target device is a device in the first set, the first set is a set of second devices whose device identifications are not identified in the second set, and the second set is a set of second devices corresponding to all device identification information to be identified; the first delay of the second target device is the difference between the reception delay of the fifth message and the first delay bias value.
  • the fifth message and/or the sixth message is further used to indicate a delay offset value set supported by the second target device or a delay offset value range supported by the second target device.
  • the method before the third device receives the sixth message from the first device, the method further includes:
  • the third device sends a second target configuration to the second target device, the second target configuration is used to send the fifth message, and the second target configuration is used to determine a second delay configuration and a silence parameter of whether to send the fifth message, and the second delay configuration is a delay configuration used to determine the first delay offset value.
  • the method further includes:
  • the third device receives an eighth message from the first device, where the eighth message is used to indicate device identification information of a third target device and a first delay of the third target device;
  • the first delay of the third target device is determined based on the seventh message sent by the third target device, the seventh message is a message sent by the third target device based on the second delay bias value, the third target device is a second device whose device identification information is not identified by the first device based on the first message, and the first delay of the third target device is the difference between the receiving delay of the seventh message and the second delay bias value.
  • the method further includes:
  • the third device sends a ninth message, where the ninth message is used to instruct all second devices to report device identification information through the seventh message based on the third target configuration;
  • the third device sends a tenth message to the fourth target device, where the tenth message is used to instruct the fourth target device not to report device identification information subsequently;
  • the third target configuration is used by the third target device to determine the third delay configuration and the silence parameter of whether to send the seventh message, and the third delay configuration is the delay configuration used to determine the second delay offset value; the fourth target device is the second device corresponding to the currently identified device identification information.
  • the method further includes:
  • the third device determines a first delay configuration of the fifth target device based on a first delay of the fifth target device, wherein the fifth target device is a device in a first set, the first set including all device sets whose device identification information has been identified or the first set including all device sets whose device identification information has been identified except the device set based on a set of second devices corresponding to other device identification information other than the device identification information identified by the first message;
  • the third device sends an eleventh message to the fifth target device, where the eleventh message is used to indicate the first delay configuration of the fifth target device and the device identification information of the fifth target device.
  • the delay configuration includes at least one of the following delay configurations:
  • the transmission method provided in the embodiment of the present application can be executed by a transmission device.
  • the transmission device provided in the embodiment of the present application is described by taking the transmission method executed by the transmission device as an example.
  • an embodiment of the present application further provides a transmission device.
  • the transmission device 900 includes:
  • a first receiving module 901 is configured to receive a first message from a second device, where the first message is used to indicate device identification information of the second device, and the first message is a message that the second device does not send based on a delay offset value;
  • a first determining module 902 configured to determine device identification information of the second device and a first delay of the second device based on the first message
  • the first delay is used to determine a first delay configuration
  • the first delay configuration is the delay configuration of the second device
  • the first delay configuration is used to determine the sending time of a first target signal
  • the first target signal is a signal sent by the second device based on a second target signal received from the first target device
  • the first target device includes a first device or a third device.
  • the transmission device 900 further includes:
  • the first sending module is used to send a second message to the third device, where the second message is used to indicate the device identification information of the second device and the first delay of the second device.
  • the first message and/or the second message is also used to indicate a delay offset value set supported by the second device or a delay offset value range supported by the second device.
  • the first target signal includes a channel estimation signal used for channel estimation or a data transmission signal used for data transmission.
  • the first delay configuration is used to update the delay configuration in the first configuration and/or the delay configuration in the second configuration, wherein the first configuration is used to send a channel estimation signal, and the delay configuration in the first configuration is used to determine the sending time of the channel estimation signal; the second configuration is used to send a data transmission signal, and the delay configuration in the second configuration is used to determine the sending time of the data transmission signal, and the channel estimation signal and/or the data transmission signal can be used to carry the first message.
  • the first configuration includes at least one of the following:
  • the second target information is used to autonomously generate a fifth symbol according to a second radio frequency signal in the fourth signal
  • silence parameter is used to determine whether to send the first message
  • the second target signal is the second signal or the fourth signal, the second signal is used to send the data transmission signal; the first part of the fourth signal is used to indicate the start of sending the second part of the fourth signal, the second part of the fourth signal is used to generate the channel estimation signal, and the second part of the fourth signal includes the fifth symbol or the second RF signal.
  • the second configuration includes at least one of the following:
  • the center frequency of the data transmission signal or the frequency offset between the data transmission signal and a specific reference signal
  • the quiet parameter being used to autonomously generate a third symbol according to the first radio frequency signal in the second signal
  • Target characteristic information the target characteristic information is used to indicate that the data transmission signal has ended or that the second device has ended sending the information to be transmitted;
  • the second target signal is the second signal or the fourth signal, the second signal is used to send the data transmission signal; the first part of the fourth signal is used to indicate the start of sending the second part of the fourth signal, and the second part of the fourth signal is used to generate the channel estimation signal.
  • the transmission device 900 further includes:
  • the first sending module is used to send a third message to the second device, where the third message is used to indicate a first target configuration, where the first target configuration is used to send the first message, and the first target configuration includes a silence parameter for determining whether to send the first message.
  • the transmission device 900 further includes:
  • the first sending module is used to send a fourth message to the second device, where the fourth message is used to instruct the second device to stop sending the first message.
  • the first receiving module 901 is further used to receive a fifth message from a second target device, where the fifth message is used to indicate device identification information of the second target device, and the fifth message is a message sent based on the first delay offset value;
  • the first determining module 902 is further configured to determine device identification information of the second target device and a first delay of the second target device based on the fifth message;
  • the second target device is a device in the first set
  • the first set is a set of second devices in the second set whose device identification is not identified
  • the second set is a set of second devices corresponding to all device identification information to be identified
  • the first delay of the second target device is the difference between the receiving delay of the fifth message and the first delay offset value.
  • the transmission device 900 further includes:
  • the first sending module is used to send a sixth message to the third device, where the sixth message is used to indicate the device identification information of the second target device and the first delay of the second target device.
  • the fifth message and/or the sixth message is further used to indicate a delay offset value set supported by the second target device or a delay offset value range supported by the second target device.
  • the transmission device 900 further includes:
  • a first sending module is used to send a second target configuration to the second target device, the second target configuration is used to send the fifth message, and the second target configuration is used to determine a second delay configuration and a silence parameter of whether to send the fifth message, and the second delay configuration is a delay configuration used to determine the first delay offset value.
  • the first receiving module 901 is further used to receive a seventh message from a third target device, where the seventh message is used to indicate device identification information of the third target device, and the seventh message is a message sent by the third target device based on the second delay offset value;
  • the first determining module 902 is further configured to determine device identification information of the third target device and a first delay of the third target device based on the seventh message;
  • the third target device is a second device whose device identification information is not recognized by the first device based on the first message, and the first delay of the third target device is the difference between the reception delay of the seventh message and the second delay offset value.
  • the transmission device 900 further includes:
  • the first sending module is used to send an eighth message to the third device, where the eighth message is used to indicate the device identification information of the third target device and the first delay of the third target device.
  • the seventh message and/or the eighth message is further used to indicate a delay offset value set supported by the third target device or a delay offset value range supported by the third target device.
  • the transmission device 900 further includes:
  • a first sending module is configured to send a ninth message, wherein the ninth message is used to instruct all second devices to report device identification information through the seventh message based on the third target configuration; and to send a tenth message to the fourth target device, wherein the tenth message is used to instruct the fourth target device not to report device identification information subsequently;
  • the third target configuration is used by the third target device to determine the third delay configuration and the silence parameter of whether to send the seventh message, and the third delay configuration is the delay configuration used to determine the second delay offset value; the fourth target device is the second device corresponding to the currently identified device identification information.
  • the transmission device 900 further includes: a first sending module, wherein, optionally, the first determining module is further used to determine the first delay configuration of the fifth target device based on the first delay of the fifth target device, wherein the fifth target device is a device in a third set, and the third set includes a set of all devices whose device identification information has been identified or the third set includes a set of second devices corresponding to other device identification information in the set of devices whose device identification information has been identified except the device identification information identified based on the first message;
  • the first sending module is used to send an eleventh message to the fifth target device, where the eleventh message is used to indicate the first delay configuration of the fifth target device and the device identification information of the fifth target device.
  • the delay configuration includes at least one of the following delay configurations:
  • the transmission device 1000 includes:
  • a second sending module 1001 is used to send a first message to a first device, where the first message is used to indicate device identification information of the second device, the first message is used to determine the identification information of the second device and a first delay of the second device, and the first message is a message sent by the second device not based on a delay offset value;
  • the first delay is used to determine a first delay configuration
  • the first delay configuration is the delay configuration of the second device
  • the first delay configuration is used to determine the sending time of a first target signal
  • the first target signal is a signal sent by the second device based on a second target signal received from the first target device
  • the first target device includes the first device or the third device.
  • the first message is also used to indicate a delay offset value set supported by the second device or a delay offset value range supported by the second device.
  • the first target signal includes a channel estimation signal used for channel estimation or a data transmission signal used for data transmission.
  • the first delay configuration is used to update the delay configuration in the first configuration and/or the delay configuration in the second configuration, wherein the first configuration is used to send a channel estimation signal, and the delay configuration in the first configuration is used to determine the sending time of the channel estimation signal; the second configuration is used to send a data transmission signal, and the delay configuration in the second configuration is used to determine the sending time of the data transmission signal, and the channel estimation signal and/or the data transmission signal can be used to carry the first message.
  • the first configuration includes at least one of the following:
  • the second target information is used to autonomously generate a fifth symbol according to a second radio frequency signal in the fourth signal
  • silence parameter is used to determine whether to send the first message
  • the second target signal is the second signal or the fourth signal, the second signal is used to send the data transmission signal; the first part of the fourth signal is used to indicate the start of sending the second part of the fourth signal, the second part of the fourth signal is used to generate the channel estimation signal, and the second part of the fourth signal includes the fifth symbol or the second RF signal.
  • the second configuration includes at least one of the following:
  • the center frequency of the data transmission signal or the frequency offset between the data transmission signal and a specific reference signal
  • the quiet parameter being used to autonomously generate a third symbol according to the first radio frequency signal in the second signal
  • Target characteristic information the target characteristic information is used to indicate that the data transmission signal has ended or that the second device has ended sending the information to be transmitted;
  • the second target signal is the second signal or the fourth signal, and the second signal is used to send the data transmission signal; the first part of the fourth signal is used to indicate the start of sending the second part of the fourth signal, and the second part of the fourth signal is used to generate the channel estimation signal.
  • the transmission device 1000 further includes:
  • the second receiving module is used to receive a third message from the first target device, where the third message is used to indicate a first target configuration, where the first target configuration is used to send the first message, and the first target configuration includes a silence parameter for determining whether to send the first message.
  • the transmission device 1000 further includes:
  • the second receiving module is used to receive a fourth message from the first device or the third device, where the fourth message is used to instruct the second device to stop sending the first message.
  • the second sending module 1001 is further used to send a fifth message to the first device, where the fifth message is used to indicate device identification information of the second device, and the fifth message is a message sent based on the first delay offset value;
  • the second device is a device in the first set, the first set is a set of second devices whose device identifications are not identified in the second set, and the second set is a set of second devices corresponding to all device identification information to be identified.
  • the fifth message is also used to indicate a delay offset value set supported by the second device or a delay offset value range supported by the second device.
  • the transmission device 1000 further includes:
  • a second receiving module is used to receive a second target configuration from the first target device, the second target configuration is used to send the fifth message, and the second target configuration is used to determine a second delay configuration and a silence parameter of whether to send the fifth message, and the second delay configuration is a delay configuration used to determine the first delay offset value.
  • the second sending module 1001 is further used to send a seventh message to the first target device, where the seventh message is used to indicate device identification information of the second device, and the seventh message is a message sent by the second device based on the second delay offset value;
  • the second device is a second device whose device identification information is not recognized by the first device based on the first message.
  • the seventh message is also used to indicate a delay offset value set supported by the second device or a delay offset value range supported by the second device.
  • the transmission device 1000 further includes:
  • a second receiving module configured to receive a ninth message from the first target device, wherein the ninth message is used to instruct all second devices to report device identification information through the seventh message based on the third target configuration;
  • the third target configuration is used by the third target device to determine a third delay configuration and a silence parameter of whether to send the seventh message, and the third delay configuration is a delay configuration used to determine the second delay offset value.
  • the delay configuration includes at least one of the following delay configurations:
  • the transmission device 1100 includes:
  • a third sending module 1101 is used to send a third message to the second device, and send a second target signal to the second device, where the second target signal is used to send a first target signal to the first device based on the target delay configuration;
  • the third message is used to indicate a first target configuration
  • the first target configuration is used to send a first message
  • the target configuration includes a silence parameter for determining whether to send the first message
  • the first message is a message that the second device does not send based on a delay offset value
  • the first message is used to indicate device identification information of the second device, and the first message is used by the first device to determine the identification information of the second device and the first delay of the second device
  • the first delay is used to determine a first delay configuration
  • the first delay configuration is the delay configuration of the second device
  • the first delay configuration is used to determine the sending time of a first target signal
  • the first target signal is a signal sent by the second device based on a second target signal received from the first target device
  • the first target device includes the first device or the third device.
  • the transmission device 1100 further includes:
  • the third receiving module is used to receive a second message from the first device, where the second message is used to indicate device identification information of the second device and a first delay of the second device.
  • the first message and/or the second message is also used to indicate a delay offset value set supported by the second device or a delay offset value range supported by the second device.
  • the first target signal includes a channel estimation signal used for channel estimation or a data transmission signal used for data transmission.
  • the first delay configuration is used to update the delay configuration in the first configuration and/or the delay configuration in the second configuration, wherein the first configuration is used to send a channel estimation signal, and the delay configuration in the first configuration is used to determine the sending time of the channel estimation signal; the second configuration is used to send a data transmission signal, and the delay configuration in the second configuration is used to determine the sending time of the data transmission signal, and the channel estimation signal and/or the data transmission signal can be used to carry the first message.
  • the third sending module 1101 is further used to send a fourth message to the second device, where the fourth message is used to instruct the second device to stop sending the first message.
  • the transmission device 1100 further includes:
  • a third receiving module configured to receive a sixth message from the first device, wherein the sixth message is used to indicate device identification information of a second target device and a first time delay of the second target device;
  • the first delay of the second target device is determined based on a fifth message sent by the second target device, the fifth message is a message sent based on the first delay offset value, the second target device is a device in the first set, the first set is a set of second devices whose device identifiers are not identified in the second set, and the second set is a set of all devices to be identified.
  • a set of second devices corresponding to the identification information of the identification device; the first delay of the second target device is the difference between the reception delay of the fifth message and the first delay offset value.
  • the fifth message and/or the sixth message is further used to indicate a delay offset value set supported by the second target device or a delay offset value range supported by the second target device.
  • the third sending module 1101 is also used to send a second target configuration to the second target device, the second target configuration is used to send the fifth message, and the second target configuration is used to determine a second delay configuration and a silence parameter of whether to send the fifth message, and the second delay configuration is a delay configuration for determining the first delay bias value.
  • the transmission device 1100 further includes:
  • a third receiving module used for receiving an eighth message from the first device, wherein the eighth message is used for indicating device identification information of a third target device and a first delay of the third target device;
  • the first delay of the third target device is determined based on the seventh message sent by the third target device, the seventh message is a message sent by the third target device based on the second delay bias value, the third target device is a second device whose device identification information is not identified by the first device based on the first message, and the first delay of the third target device is the difference between the receiving delay of the seventh message and the second delay bias value.
  • the third sending module 1101 is further used for:
  • the third target configuration is used by the third target device to determine the third delay configuration and the silence parameter of whether to send the seventh message, and the third delay configuration is the delay configuration used to determine the second delay offset value; the fourth target device is the second device corresponding to the currently identified device identification information.
  • the transmission device 1100 further includes a second determination module, configured to determine a first delay configuration of the fifth target device based on the first delay of the fifth target device, wherein the fifth target device is a device in a first set, the first set including a set of all devices whose device identification information has been identified or the first set including a set of second devices corresponding to other device identification information in a set of devices whose device identification information has been identified except for the device identification information identified based on the first message;
  • the third sending module 1101 is further used to send an eleventh message to the fifth target device, where the eleventh message is used to indicate the first delay configuration of the fifth target device and the device identification information of the fifth target device.
  • the delay configuration includes at least one of the following delay configurations:
  • the transmission method provided in the embodiment of the present application can be executed by a transmission device.
  • the transmission device provided in the embodiment of the present application is described by taking the transmission method executed by the transmission device as an example.
  • the transmission device in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip.
  • the electronic device can be a terminal, or it can be other devices other than a terminal.
  • the terminal can include but is not limited to the types of terminal 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.
  • the transmission device provided in the embodiment of the present application can implement the various processes implemented in the method embodiments of Figures 6 to 8 and achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • an embodiment of the present application also provides a communication device 1200, including a processor 1201 and a memory 1202, and the memory 1202 stores a program or instruction that can be executed on the processor 1201.
  • the program or instruction is executed by the processor 1201
  • the various steps of the above-mentioned transmission method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
  • the embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein:
  • the communication interface is used to receive a first message from a second device, the first message is used to indicate device identification information of the second device, and the first message is a message that the second device is not sent based on a delay offset value;
  • the processor is used to determine the device identification information of the second device and a first delay of the second device based on the first message; wherein the first delay is used to determine a first delay configuration, the first delay configuration is the delay configuration of the second device, the first delay configuration is used to determine a sending time of a first target signal, the first target signal is a signal sent by the second device based on a second target signal received from the first target device, and the first target device includes a first device or a third device.
  • the communication interface is used to send a first message to the first device, the first message is used to indicate the device identification information of the second device, the first message is used to determine the identification information of the second device and the first delay of the second device, and the first message is a message sent by the second device not based on a delay offset value; wherein the first delay is used to determine a first delay configuration, the first delay configuration is the delay configuration of the second device, the first delay configuration is used to determine the sending time of a first target signal, the first target signal is a signal sent by the second device based on a second target signal received from the first target device, and the first target device includes the first device or the third device.
  • the communication interface is used to send a third message to the second device, send a second target signal to the second device, and the second target signal is used to send a first target signal to the first device based on the target delay configuration; wherein the third message is used to indicate the first target configuration, the first target configuration is used to send the first message, and the target configuration includes a silence parameter for determining whether to send the first message, and the first message is a message that the second device does not send based on the delay offset value; the first message is used to indicate the device identification information of the second device, and the first message is used by the first device to determine the identification information of the second device and the first delay; the first delay is used to determine a first delay configuration, the first delay configuration is the delay configuration of the second device, the first delay configuration is used to determine the sending time of a first target signal, the first target signal is a signal sent by the second device based on a second target signal received from the first target device, and the first target device includes the first device or
  • the terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to the terminal embodiment and can achieve the same technical effect.
  • Figure 13 is a schematic diagram of the hardware structure of a terminal implementing the embodiment of the present application.
  • the terminal 1300 includes but is not limited to: a radio frequency unit 1301, a network module 1302, an audio output unit 1303, an input unit 1304, a sensor 1305, a display unit 1306, a user input unit 1307, an interface unit 1308, a memory 1309 and at least some of the components of a processor 1310.
  • the terminal 1300 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 1310 through a power management system, so as to implement functions such as managing charging, discharging, and power consumption management through the power management system.
  • a power source such as a battery
  • the terminal structure shown in FIG13 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange components differently, which will not be described in detail here.
  • the input unit 1304 may include a graphics processing unit (GPU) 13041 and a microphone 13042, and the graphics processor 13041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode.
  • the display unit 1306 may include a display panel 13061, and the display panel 13061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc.
  • the user input unit 1307 includes a touch panel 13071 and at least one of other input devices 13072.
  • the touch panel 13071 is also called a touch screen.
  • the touch panel 13071 may include two parts: a touch detection device and a touch controller.
  • Other input devices 13072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.
  • the RF unit 1301 can transmit the data to the processor 1310 for processing; in addition, the RF unit 1301 can send uplink data to the network side device.
  • the RF unit 1301 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.
  • the memory 1309 can be used to store software programs or instructions and various data.
  • the memory 1309 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc.
  • the memory 1309 may include a volatile memory or a non-volatile memory, or the memory 1309 may include both volatile and non-volatile memories.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory.
  • the volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (DRAM), or a non-volatile memory.
  • the memory 1309 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.
  • the processor 1310 may include one or more processing units; optionally, the processor 1310 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 1310.
  • the radio frequency unit 1301 is used to receive a first message from a second device, the first message is used to indicate device identification information of the second device, and the first message is a message that the second device is not sent based on a delay offset value; the processor 1310 is used to determine the device identification information of the second device and the first delay of the second device based on the first message; wherein the first delay is used to determine a first delay configuration, the first delay configuration is the delay configuration of the second device, the first delay configuration is used to determine a sending time of a first target signal, the first target signal is a signal sent by the second device based on a second target signal received from the first target device, and the first target device includes a first device or a third device.
  • the radio frequency unit 1301 is used to send a first message to the first device, wherein the first message is used to indicate device identification information of the second device, the first message is used to determine identification information of the second device and a first delay of the second device, and the first message is a message that the second device is not sent based on a delay offset value; wherein the first delay is used to determine a first delay configuration, the first delay configuration is the delay configuration of the second device, the first delay configuration is used to determine a sending time of a first target signal, the first target signal is a signal sent by the second device based on a second target signal received from the first target device, and the first target device includes the first device or a third device.
  • the radio frequency unit 1301 is used to send a third message to the second device, send a second target signal to the second device, and the second target signal is used to send a first target signal to the first device based on the target delay configuration; wherein the third message is used to indicate the first target configuration, the first target configuration is used to send the first message, and the target configuration includes a silence parameter for determining whether to send the first message, and the first message is a message that the second device does not send based on the delay offset value; the first message is used to indicate the device identification information of the second device, and the first message is used by the first device to determine the identification information of the second device and the first delay of the second device; the first delay is used to determine the first delay configuration, the first delay configuration is the delay configuration of the second device, the first delay configuration is used to determine the sending time of the first target signal, the first target signal is a signal sent by the second device based on the second target signal received from the first target device, and the first target device includes
  • the embodiment of the present application also provides a network side device, including a processor and a communication interface, wherein:
  • the communication interface is used to receive a first message from a second device, The first message is used to indicate the device identification information of the second device, and the first message is a message that the second device does not send based on the delay offset value;
  • the processor is used to determine the device identification information of the second device and the first delay of the second device based on the first message; wherein the first delay is used to determine a first delay configuration, the first delay configuration is the delay configuration of the second device, the first delay configuration is used to determine the sending time of a first target signal, the first target signal is a signal sent by the second device based on a second target signal received from a first target device, and the first target device includes a first device or a third device.
  • the communication interface is used to send a first message to the first device, the first message is used to indicate the device identification information of the second device, the first message is used to determine the identification information of the second device and the first delay of the second device, and the first message is a message sent by the second device not based on the delay offset value; wherein the first delay is used to determine a first delay configuration, the first delay configuration is the delay configuration of the second device, the first delay configuration is used to determine the sending time of a first target signal, the first target signal is a signal sent by the second device based on the second target signal received from the first target device, and the first target device includes the first device or the third device.
  • the communication interface is used to send a third message to the second device, send a second target signal to the second device, and the second target signal is used to send a first target signal to the first device based on the target delay configuration;
  • the third message is used to indicate the first target configuration, the first target configuration is used to send the first message, and the target configuration includes a silence parameter for determining whether to send the first message, and the first message is a message that the second device does not send based on the delay offset value;
  • the first message is used to indicate the device identification information of the second device, and the first message is used by the first device to determine the identification information of the second device and the first delay of the second device;
  • the first delay is used to determine the first delay configuration, the first delay configuration is the delay configuration of the second device, the first delay configuration is used to determine the sending time of the first target signal, the first target signal is a signal sent by the second device based on the second target signal received from the first target device, and the first target device includes the
  • This network side device embodiment corresponds to the above-mentioned network side device method embodiment.
  • Each implementation process and implementation method of the above-mentioned method embodiment can be applied to this network side device embodiment and can achieve the same technical effect.
  • the embodiment of the present application also provides a network side device.
  • the network side device 1400 includes: an antenna 1401, a radio frequency device 1402, a baseband device 1403, a processor 1404 and a memory 1405.
  • the antenna 1401 is connected to the radio frequency device 1402.
  • the radio frequency device 1402 receives information through the antenna 1401 and sends the received information to the baseband device 1403 for processing.
  • the baseband device 1403 processes the information to be sent and sends it to the radio frequency device 1402.
  • the radio frequency device 1402 processes the received information and sends it out through the antenna 1401.
  • the method executed by the network-side device in the above embodiment may be implemented in the baseband device 1403, which includes a baseband processor.
  • the baseband device 1403 may include, for example, at least one baseband board, on which a plurality of chips are arranged, as shown in FIG14 , one of the chips is, for example, a baseband processor, which is connected to the memory 1405 through a bus interface to call the storage
  • the program in the device 1405 executes the network device operations shown in the above method embodiment.
  • the network side device may also include a network interface 1406, which is, for example, a common public radio interface (CPRI).
  • a network interface 1406 which is, for example, a common public radio interface (CPRI).
  • CPRI common public radio interface
  • the network side device 1400 of the embodiment of the present application also includes: instructions or programs stored in the memory 1405 and executable on the processor 1404.
  • the processor 1404 calls the instructions or programs in the memory 1405 to execute the method executed by each module shown in Figure XX and achieves the same technical effect. To avoid repetition, it will not be repeated here.
  • An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored.
  • a program or instruction is stored.
  • the various processes of the above-mentioned transmission method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
  • the processor is the processor in the terminal described in the above embodiment.
  • the readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.
  • An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.
  • the embodiments of the present application further provide a computer program/program product, which is stored in a storage medium and is executed by at least one processor to implement the various processes of the above-mentioned transmission method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
  • An embodiment of the present application also provides a communication system, including: a first device, a second device and a third device, wherein the first device is used to execute the various processes of the various method embodiments as shown in Figure 6 and the above-mentioned first device side, the second device is used to execute the various processes of the various method embodiments as shown in Figure 7 and the above-mentioned second device side, and the third device is used to execute the various processes of the various method embodiments as shown in Figure 8 and the above-mentioned third device side, and can achieve the same technical effect, which will not be repeated here to avoid repetition.
  • the above embodiment method can be It can be implemented by means of software plus a necessary general hardware platform, or by hardware, but in many cases the former is a better implementation method.
  • the technical solution of the present application, or the part that contributes to the relevant technology can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, disk, CD), and includes several instructions for enabling a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present application.

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Abstract

La présente demande appartient au domaine technique des communications. Sont divulgués des procédés de transmission, un appareil, un terminal et un dispositif côté réseau. Un procédé de transmission, dans les modes de réalisation de la présente demande, consiste en : la réception, par un premier dispositif, d'un premier message en provenance d'un deuxième dispositif, le premier message étant utilisé pour indiquer des informations d'identification de dispositif du deuxième dispositif, et le premier message étant le message envoyé par le deuxième dispositif non sur la base d'une valeur de décalage de retard temporel ; et, sur la base du premier message, la détermination, par le premier dispositif, des informations d'identification de dispositif du deuxième dispositif et d'un premier retard du deuxième dispositif, le premier retard étant utilisé pour déterminer une première configuration de retard, la première configuration de retard étant la configuration de retard du deuxième dispositif, la première configuration de retard étant utilisée pour déterminer un temps d'envoi pour un premier signal cible, le premier signal cible étant le signal envoyé par le deuxième dispositif sur la base d'un second signal cible reçu en provenance d'un premier dispositif cible, et le premier dispositif cible comprenant le premier dispositif ou un troisième dispositif.
PCT/CN2023/137423 2022-12-12 2023-12-08 Procédés de transmission, appareil, terminal et dispositif côté réseau WO2024125403A1 (fr)

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CN202211600318.4A CN118201107A (zh) 2022-12-12 2022-12-12 传输方法、装置、终端及网络侧设备
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CN113132173A (zh) * 2019-12-31 2021-07-16 华为技术有限公司 时延确定方法及装置、网络传输系统
CN114339793A (zh) * 2020-09-29 2022-04-12 维沃移动通信有限公司 信息传输方法、终端及网络侧设备
CN114745044A (zh) * 2022-04-01 2022-07-12 中国信息通信研究院 一种无线信号传输方法和设备
CN115390014A (zh) * 2022-08-08 2022-11-25 北京小米移动软件有限公司 距离确定方法及装置、终端、计算机可读存储介质

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