CN116828495A - Information sending method, information receiving method, sending end and receiving end - Google Patents

Abstract

The application discloses an information sending method, an information receiving method, a sending end and a receiving end, which belong to the technical field of communication, and the information sending method of the embodiment of the application comprises the following steps: the sending end sends a wake-up signal to the receiving end; wherein the wake-up signal comprises a first signal for determining a threshold value for signal demodulation.

Description

Information sending method, information receiving method, sending end and receiving end

Technical field

This application belongs to the field of communication technology, and specifically relates to an information sending method, an information receiving method, a sending end and a receiving end.

Background technique

3GPP will begin research work on introducing low-power wake-up receiver/wake-up signal (Low PowerWake Up Receiver/Wake-Up Signal, LP WUR/WUS) in mobile cellular systems. The basic working principle of LP WUR is that the receiving end contains the first module and the second module, the first module is the main communication module, used to receive communication data transmitted by the sending end and send communication data, the second module is a low power consumption module, and the second module can be used to receive the wake-up signal sent by the sending end. (It can also be called a low-power wake-up signal). The wake-up signal is used to wake up the main communication module at the receiving end. The low-power module receives the wake-up signal. When demodulating the wake-up signal, it compares it with the preset threshold to determine the signal amplitude level of the wake-up signal. Unreasonable preset threshold values will result in determining the signal amplitude. The accuracy is low.

Contents of the invention

Embodiments of the present application provide an information sending method, an information receiving method, a sending end, and a receiving end, which can solve the problem of low accuracy in determining the signal amplitude of a wake-up signal.

The first aspect provides a method of sending information, including:

The sender sends a wake-up signal to the receiver;

Wherein, the wake-up signal includes a first signal used to determine a threshold value for signal demodulation.

The second aspect provides a method for receiving information, including:

The receiving end receives the wake-up signal sent by the sending end;

Wherein, the wake-up signal includes a first signal used to determine a threshold value for signal demodulation.

In a third aspect, an information sending device is provided. The sending end includes the information sending device, including:

The sending module is used to send a wake-up signal to the receiving end;

Wherein, the wake-up signal includes a first signal used to determine a threshold value for signal demodulation.

In a fourth aspect, an information receiving device is provided. The receiving end includes the information receiving device, including:

The receiving module is used to receive the wake-up signal sent by the sending end;

Wherein, the wake-up signal includes a first signal used to determine a threshold value for signal demodulation.

In a fifth aspect, a sending end is provided. The sending end includes a processor and a memory. The memory stores a program or instructions that can be run on the processor. The program or instructions are implemented when executed by the processor. The steps of the method as described in the first aspect.

In a sixth aspect, a sending end is provided, including a processor and a communication interface, wherein the communication interface is used to send a wake-up signal to the receiving end; wherein the wake-up signal includes a threshold for determining signal demodulation. The first signal of value.

In a seventh aspect, a receiving end is provided. The receiving end includes a processor and a memory. The memory stores programs or instructions that can be run on the processor. The program or instructions are implemented when executed by the processor. The steps of the method as described in the second aspect.

In an eighth aspect, a receiving end is provided, including a processor and a communication interface, wherein the communication interface is used to receive a wake-up signal sent by the sending end; wherein the wake-up signal includes a gate for determining signal demodulation The first signal of the limit.

A ninth aspect provides an information transceiver system, including: a sending end and a receiving end. The sending end can be used to perform the steps of the information sending method as described in the first aspect, and the receiving end can be used to perform as described in the second aspect. The steps of the information receiving method described in this aspect.

In a tenth aspect, a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method are implemented as described in the first aspect. The steps of the method described in the second aspect.

In an eleventh aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the method described in the first aspect. method, or implement a method as described in the second aspect.

In a twelfth aspect, a computer program/program product is provided, 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 as described in the first aspect The steps of the information sending method, or the computer program/program product is executed by at least one processor to implement the steps of the information receiving method as described in the second aspect.

In this embodiment of the present application, the sending end sends a wake-up signal to the receiving end; wherein the wake-up signal includes a first signal used to determine a threshold value for signal demodulation. In this way, the threshold value of signal demodulation is determined by the first signal in the wake-up signal sent by the transmitting end, so that the threshold value for determining the signal amplitude level of the wake-up signal can be determined in combination with the actual communication environment, and the determination signal amplitude can be improved. value accuracy.

Description of the drawings

Figure 1 is a block diagram of a wireless communication system applicable to the embodiment of the present application;

Figure 2 is a flow chart of an information sending method provided by an embodiment of the present application;

Figure 3 is one of the structural schematic diagrams of a terminal provided by an embodiment of the present application;

Figure 4 is a schematic structural diagram of a receiver provided by an embodiment of the present application;

Figure 5 is one of the structural schematic diagrams of a wake-up signal provided by an embodiment of the present application;

Figure 6 is one of the partial structural schematic diagrams of a wake-up signal provided by an embodiment of the present application;

Figure 7 is a second structural schematic diagram of a wake-up signal provided by an embodiment of the present application;

Figure 8 is a second partial structural schematic diagram of a wake-up signal provided by an embodiment of the present application;

Figure 9 is a third structural schematic diagram of a wake-up signal provided by an embodiment of the present application;

Figure 10 is the fourth structural schematic diagram of a wake-up signal provided by an embodiment of the present application;

Figure 11 is a fifth structural schematic diagram of a wake-up signal provided by an embodiment of the present application;

Figure 12 is a flow chart of an information receiving method provided by an embodiment of the present application;

Figure 13 is a structural diagram of an information sending device provided by an embodiment of the present application;

Figure 14 is a structural diagram of an information receiving device provided by an embodiment of the present application;

Figure 15 is a structural diagram of a communication device provided by an embodiment of the present application;

Figure 16 is a schematic structural diagram of a terminal provided by an embodiment of the present application;

Figure 17 is a schematic structural diagram of a network side device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the scope of protection of this application.

The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and "second" are distinguished objects It is usually one type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the related objects are in an "or" relationship.

It is worth pointing out that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced, LTE-A) systems, and can also be used in other wireless communication systems, such as code division Multiple Access (Code Division Multiple Access, CDMA), Time Division Multiple Access (Time Division Multiple Access, TDMA), Frequency Division Multiple Access (Frequency Division Multiple Access, FDMA), Orthogonal Frequency Division Multiple Access (OFDMA) , Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in much of the following description, but these techniques can also be applied to applications other than NR system applications, such as 6th ^generation Generation, 6G) communication system.

Figure 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. 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 (Personal Digital Assistant, PDA), a palmtop computer, a netbook, or a super mobile personal computer ( ultra-mobile personalcomputer (UMPC), mobile Internet Device (MID), augmented reality (AR)/virtual reality (VR) equipment, robots, wearable devices (WearableDevice), vehicle-mounted equipment ( VUE), pedestrian terminal (PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), game consoles, personal computers (PC), teller machines or self-service machines and other terminal sides Equipment, wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, Smart clothing, etc. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network side device 12 may include an access network device or a core network device, where the access network device 12 may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or Wireless access network unit. The access network device 12 may include a base station, a WLAN access point or a WiFi node, etc. 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, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home B-Node, Home Evolved B-Node, Transmitting Receiving Point (TRP) or the above Some other appropriate terminology in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiment of this application, only the base station in the NR system is used as an example for introduction. Define the specific type of base station. Core network equipment may include but is not limited to at least one of the following: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions ( Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Service Discovery Function (Edge ApplicationServer Discovery Function, EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (Centralized network configuration, CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (Local NEF, or L-NEF), Binding Support Function (BSF), Application Function (Application Function, AF), etc. It should be noted that in the embodiment of this application, only the core network equipment in the NR system is used as an example for introduction, and the specific type of the core network equipment is not limited.

The information sending method, information receiving method, sending end and receiving end provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings through some embodiments and application scenarios.

Referring to Figure 2, Figure 2 is a flow chart of an information sending method provided by an embodiment of the present application. As shown in Figure 2, the information sending method includes the following steps:

Step 101. The sending end sends a wake-up signal to the receiving end;

Wherein, the wake-up signal includes a first signal used to determine a threshold value for signal demodulation.

In addition, the transmission power of the first signal in the wake-up signal may be set to be the same as the transmission power of the remaining parts of the wake-up signal.

In one implementation, the wake-up signal is a low-power wake-up signal.

In one implementation, the first signal is used to train a low-power module at the receiving end to determine a threshold for signal demodulation by the low-power module.

In addition, signal demodulation may include a process of comparing the voltage value of the signal with a signal demodulation threshold value to determine the signal amplitude of the signal. Taking the signal amplitude including 0 and 1 as an example, the signal amplitude can be determined to be 1 when the voltage value of the signal is greater than or equal to the threshold value, and the signal amplitude can be determined to be 0 when the voltage value of the signal is less than the threshold value.

In one implementation, the determination of the threshold value for signal demodulation may be to determine the comparator threshold value of the receiving end. Further, it may be to determine the comparator threshold value of the low power consumption module of the receiving end.

In one implementation, a first signal used to determine a threshold value for signal demodulation is used to set a comparator threshold value of the low power consumption module. By setting the comparator threshold of the low-power module through the first signal in the wake-up signal, the comparator threshold can be set to an appropriate level according to the actual communication environment, thereby improving the accuracy of judging the signal amplitude.

It should be noted that the first signal is a partial signal in the wake-up signal. Taking the wake-up signal passing through a sequence representation as an example, the first signal can be a partial sequence in the sequence corresponding to the wake-up signal; taking the wake-up signal passing through the target duration Taking the level signal representation as an example, the first signal can be a partial level signal in the level signal of the target duration.

It should be noted that the receiving end can be a terminal. The terminal includes a first module and a second module. The first module is a main communication module and is used to receive communication data transmitted by the sending end and send communication data. The second module is a low-power consumption module. module, the second module can be used to receive a wake-up signal (also called a low-power wake-up signal) sent by the sending end, and the wake-up signal is used to wake up the main communication module of the receiving end. As shown in Figure 3, the first module is always in a closed state and does not send or receive data when it is not awakened by the second module. When downlink data arrives, the second module detects the wake-up signal sent by the transmitter, and the wake-up signal contains this terminal information, the second module triggers the first module to switch from the closed state to the working state to receive and send data. The second module can be turned on continuously or discontinuously. When turned on, the second module can receive a low-power wake-up signal and a beacon signal (which can also be called a low-power beacon signal).

In one implementation, the receiving end includes an LP-WUR receiver, as shown in Figure 4. The LP-WUR receiver includes a band pass filter (Band pass filter, BPF), a low noise amplifier (LNA), Matching Network unit, Diodes unit, RC filtering unit, comparator and microprocessing unit (Main controller). The low-power wake-up signal first passes through the bandpass filter to achieve out-of-band suppression, and then is filtered by the LNA and matching network to amplify the in-band signal. Then, high, medium and low levels of diodes can be selected according to performance requirements to achieve the envelope detection function. The square of the input signal is obtained, which is then shaped by the RC filter unit and then input into the comparator. It is compared with the threshold value set by the comparator to determine the signal amplitude level. Generally, a comparator can output multiple amplitude levels depending on the number of bits. For example, a 1-bit comparator can output two amplitude levels. When the comparator input signal amplitude is higher than the comparator threshold, The output amplitude level is 1; when the comparator input signal amplitude is lower than the comparator threshold, the output amplitude level is 0. The signal output by the comparator finally enters the microprocessing unit for wake-up signal detection and processing.

It should be noted that since the competition access mechanism of WIFI can greatly reduce co-channel interference and achieve good interference suppression effect, thereby reducing the impact of interference on the comparator threshold setting, the wake-up signal can also be based on WIFI Competition access mechanism design, but the wake-up signal designed based on the competition access mechanism cannot be used in the licensed frequency band of the cellular mobile system. In the licensed frequency band of the cellular mobile system, co-channel interference and out-of-band interference leakage will directly affect the performance of the receiver comparator. The wake-up signal designed in the embodiment of the present invention is particularly suitable for cellular mobile systems.

In addition, in order to reduce the power consumption of the receiver, the low-power wake-up signal can be modulated using Amplitude shift keying (ASK), so that a simplified receiver structure can be used to detect the wake-up signal, such as envelope detection, thereby reducing the power consumption. down to the microwatt level. For the ASK signal, in order to determine the signal amplitude, the signal output by the envelope detection receiver passes through the comparator and is compared with the threshold value of the comparator to output the signal amplitude level. The threshold setting value of the comparator directly affects the signal amplitude. Value judgment performance. The wake-up signal designed in the embodiment of the present invention helps to set the comparator threshold and improve the detection performance of the wake-up signal.

In one implementation, the structure of the wake-up signal may be any of the following:

The first structure, the second structure, the third structure, the fourth structure, the fifth structure, the sixth structure;

Wherein, the wake-up signal of the first structure includes a delimiter, a first-level preamble, and data information (i.e., data part) in sequence;

The wake-up signal of the second structure includes a delimiter, a first-level preamble, a second-level preamble, and data information (i.e., the data part) in sequence;

The wake-up signal of the third structure includes a first-level preamble and data information (i.e., data part) in sequence;

The wake-up signal of the fourth structure includes a first-level preamble, a second-level preamble, and data information (i.e., the data part) in sequence;

The wake-up signal of the fifth structure includes a first-level preamble, a cyclic suffix, and data information (i.e., the data part) in sequence;

The wake-up signal of the sixth structure includes a first-level preamble, a cyclic suffix, a second-level preamble, and data information (ie, the data part) in sequence.

In the wake-up signals of the first structure and the second structure, the high-level duration corresponding to the delimiter is greater than or equal to the first preset duration; and/or the low-level duration corresponding to the delimiter is greater than or equal to Second preset duration. For example, the high-level duration included in the delimiter satisfies no less than the first preset duration, and the high-level duration is the continuous accumulated time or the total intermittent accumulated time; and/or the low-level duration included in the delimiter If it is not less than the second preset duration, the low-level duration is the continuous accumulated time or the total intermittent accumulated time. Therefore, the receiving end can iteratively adjust the comparator threshold during the high-level duration of the delimiter until stable or the end of the high-level duration; or, the receiving end can iteratively adjust the comparator during the low-level duration of the delimiter. Threshold value until stable or end of low level duration.

For example, as shown in Figure 5, the wake-up signal of the first structure includes a delimiter, a preamble, and a data part. In the case where only one level of preamble is included, the one level preamble can be directly called the preamble. The wake-up signal of the second structure includes a delimiter, preamble 1 (i.e., the first-level preamble), preamble 2 (i.e., the second-level preamble), and a data part. As shown in Figure 6, delimiter 1 can be a delimiter in which the continuous accumulated time of high level is greater than or equal to the preset duration, and delimiter 2 can be a delimiter in which the total intermittent accumulated time of high level is greater than or equal to the preset duration. .

In the wake-up signals of the third structure and the fourth structure, the first-level preamble includes a preset sequence, and the preset sequence is set starting from the starting position of the first-level preamble. For example, the first-level preamble includes a subsequence of a certain length starting from the starting position, and the subsequence is a preset sequence. Therefore, the receiving end can iteratively adjust the comparator threshold according to the subsequence in the first-level preamble until it is stable or the subsequence ends.

For example, as shown in Figure 7, the wake-up signal of the third structure includes the preamble and the data part; the wake-up signal of the fourth structure includes preamble 1 (i.e., the first-level preamble) and preamble 2 (i.e., the second-level preamble). , that is, the data part. As shown in Figure 8, the first-level preamble can be the main sequence, and the preset sequence is a subsequence of a certain length starting from the starting position of the first-level preamble.

In the wake-up signals of the fifth structure and the sixth structure, the wake-up signal includes a first-level preamble and a cyclic suffix, the sequence of the cyclic suffix overlaps with a partial sequence in the first-level preamble, and the cyclic suffix The sequence includes a sequence of preset length starting from the starting position in the first-level preamble. For example, the cyclic suffix is obtained by intercepting a portion of a certain length from the starting position of the first-level preamble and copying it. Therefore, the receiving end performs sequence detection while adjusting the comparator threshold starting from the first-level preamble, and continues to adjust the comparator threshold until it is stable.

For example, as shown in Figure 9, the wake-up signal of the fifth structure includes a preamble, a cyclic suffix, and a data part. In the case where only one level of preamble is included, the one level preamble can be directly called the preamble. The wake-up signal of the sixth structure includes preamble 1 (ie, the first-level preamble), cyclic suffix, preamble 2 (ie, the second-level preamble), and the data part.

In this embodiment of the present application, the sending end sends a wake-up signal to the receiving end; wherein the wake-up signal includes a first signal used to determine a threshold value for signal demodulation. In this way, the threshold value of signal demodulation is determined by the first signal in the wake-up signal sent by the transmitting end, so that the threshold value for determining the signal amplitude level of the wake-up signal can be determined in combination with the actual communication environment, and the determination signal amplitude can be improved. value accuracy.

Optionally, the wake-up signal includes at least one of the following:

as a cyclic suffix of said first signal;

As the first-level preamble of the first signal;

as the delimiter of the first signal.

The first signal may be characterized by a signal sequence, and the cyclic suffix includes the signal sequence, and/or the first-level preamble includes the signal sequence, and the first-level preamble may be called a preamble. The first signal may be characterized by a level signal, and the delimiter may include the level signal.

In one implementation, when the wake-up signal includes a preamble and the preamble serves as the first signal, the receiving end can determine the signal amplitude (the input value of the comparator) corresponding to the first signal in the received preamble. ) The average value is used as the threshold value of the comparator. For example, when the nth bit of the sequence of the first signal is received, the comparator threshold can be set to: [scalar 1*average(f(1):f(n-m))+scalar2*average(f(n -m+1):f(n-1))]/(n-1), scalar 1 and scalar 2 are weight coefficients, scalar 1 and scalar 2 can be greater than 0 and less than or equal to 1, m is greater than 1 And is an integer less than n, average is the averaging function, and f(x) represents the signal amplitude at the xth bit of the sequence. In order to improve the accuracy of determining the signal amplitude, the weight coefficient close to the nth position of the sequence can be set larger, that is, scalar2 is set to be greater than scalar1.

In one implementation, when the wake-up signal includes a delimiter and the delimiter is used as the first signal, the receiving end can determine the duration from the high-level start moment to L according to the high-level duration of the delimiter. The value obtained by averaging the received signal amplitude (input value of the comparator) during the period is used as the comparator threshold value. For example, at time n, the comparator threshold can be set to: [scalar 1*average(f(n-L):f(n-m))+scalar2*average(f(n-m+1):f(n-1 ))]/2L, where n-L is the starting moment of high level, scalar 1 and scalar 2 are weight coefficients, scalar 1 and scalar 2 can be values greater than 0 and less than or equal to 1, m is a value greater than n-L and less than n , average is the averaging function, and f(x) represents the signal amplitude at time x. In order to improve the accuracy of determining the signal amplitude, the weight coefficient close to time n can be set larger, that is, scalar2 is set to be greater than scalar 1.

In one implementation, when the wake-up signal includes a cyclic suffix and the cyclic suffix is used as the first signal, the receiving end can use the signal amplitude corresponding to the subsequence corresponding to the cyclic suffix in the received first-level preamble (compare The value obtained by averaging the input value of the comparator is used as the threshold value of the comparator. For example, when receiving the nth bit of this part of the first-level preamble, the comparator threshold can be set to: [scalar 1*average(f(1):f(n-m))+scalar2*average(f(n -m+1):f(n-1))]/(n-1), scalar 1 and scalar 2 are weight coefficients, scalar 1 and scalar 2 can be greater than 0 and less than or equal to 1, m is greater than 1 And less than the value of n, average is the averaging function, and f(x) represents the signal amplitude at the xth bit of the sequence. In order to improve the accuracy of determining the signal amplitude, the weight coefficient close to time n can be set larger, that is, scalar2 is set to be greater than scalar 1.

In this embodiment, at least one of the cyclic suffix, the preamble and the delimiter is used to determine the signal demodulation threshold, thereby improving the accuracy of the low-power module in determining the signal amplitude.

Optionally, the wake-up signal is any one of the following:

The first wake-up signal including the delimiter and the first-level preamble;

The second wake-up signal includes the delimiter, the first-level preamble and the second-level preamble;

a third wake-up signal including a first-level preamble;

The fourth wake-up signal includes the first-level preamble and the second-level preamble;

The fifth wake-up signal includes the first-level preamble and cyclic suffix;

The sixth wake-up signal includes the first-level preamble, cyclic suffix and second-level preamble.

In one implementation, the structure of the wake-up signal is any one of the following:

The first structure, the second structure, the third structure, the fourth structure, the fifth structure, the sixth structure;

Wherein, the wake-up signal of the first structure includes a delimiter and a first-level preamble in sequence;

The wake-up signal of the second structure includes a delimiter, a first-level preamble, and a second-level preamble in sequence;

The wake-up signal of the third structure includes a first-level preamble;

The wake-up signal of the fourth structure includes a first-level preamble and a second-level preamble in sequence;

The wake-up signal of the fifth structure includes a first-level preamble and a cyclic suffix in sequence;

The wake-up signal of the sixth structure includes a first-level preamble, a cyclic suffix, and a second-level preamble in order.

It should be noted that when the wake-up signal only includes a first-level preamble, the first-level preamble can be directly called a preamble.

By designing the wake-up signal of the first structure, the second structure, the third structure, the fourth structure, the fifth structure, or the sixth structure, the structural design of the wake-up signal can be achieved.

In this embodiment, the wake-up signal is the first wake-up signal, so that the comparator threshold value has been adjusted to an appropriate value based on the signal received during the delimiter period before sequence detection of the preamble, which can improve the preamble sequence. The detection success probability; the wake-up signal is the second wake-up signal, so that the comparator threshold value has been adjusted to an appropriate value based on the signal received during the delimiter period before sequence detection of the preamble, which can improve the preamble sequence. The success probability of detection, and more information can be carried through multi-stage preambles; the wake-up signal is the third wake-up signal, so that the comparator threshold can be adjusted to the determined signal received during the initial detection of the preamble. Appropriate value, which can improve the success probability of subsequent sequence detection of the preamble; the wake-up signal is the fourth wake-up signal, so that the comparator threshold value can be adjusted to the appropriate value based on the received determination signal during the initial detection of the preamble. value, which can improve the success probability of subsequent sequence detection of the preamble, and can carry more information through multi-level preambles; the wake-up signal is the fifth wake-up signal or the sixth wake-up signal, so when the communication environment conditions are good, compare The threshold value of the detector can be set to an appropriate threshold in a short period of time, so that the success probability of preamble detection is high and the cyclic suffix detection can be skipped; when the communication environment conditions are poor, the cyclic suffix can be passed through one to multiple bits in sequence Detection to increase the number of detections of the preamble, greatly improving the probability of successful detection.

Optionally, the wake-up signal includes a primary preamble and a cyclic suffix, and the sequence of the cyclic suffix overlaps with a partial sequence in the primary preamble.

Wherein, the first signal may be a signal sequence, the preamble may include a first-level preamble, and the sequence of the first signal is a sequence of a preset length in the first-level preamble. For example, the sequence of the first signal includes a preset length sequence starting from the starting position in the first-level preamble; or, the sequence of the first signal is a preset length at the end of the first-level preamble. sequence of length; etc., this embodiment does not limit this.

It should be noted that when the receiving end performs preamble detection, when the communication environment conditions are good, the comparator threshold can be set to an appropriate threshold in a short period of time, so that the preamble detection success probability is greater and the comparator threshold can be jumped. Cyclic suffix detection; when the communication environment conditions are poor, the number of preamble detection times can be increased by cyclic suffix detection from one to multiple bits in sequence.

In this embodiment, the accuracy of detecting the preamble can be improved by using the cyclic suffix that overlaps with the partial sequence in the preamble.

Optionally, the sequence of the cyclic suffix includes a sequence of a preset length starting from the starting position in the first-level preamble.

As shown in Figure 10, the cyclic suffix can be obtained by intercepting a portion of a certain length from the starting position of the first-level preamble and copying it. The length of the cyclic suffix can be pre-configured through network configuration or protocol.

It should be noted that when the wake-up signal only includes a first-level preamble, the first-level preamble can be directly called a preamble.

Optionally, the first-level preamble includes a preset sequence, and the preset sequence is set starting from a starting position of the first-level preamble.

Wherein, the length of the preset sequence is not greater than the length of the sequence corresponding to the first-level preamble. The preset sequence may be a sequence of a determined pattern, and the pattern may be preconfigured through network configuration or protocol. For example, the sequence pattern of the first signal may be: 11111111111, or 010101010101, or 101010101010, and so on. Taking the preset sequence as a 10-bit sequence as an example, the preset sequence can be used as bits 1 to 10 of the first-level preamble.

Optionally, the high level duration corresponding to the delimiter is greater than or equal to the first preset duration;

and / or

The low level duration corresponding to the delimiter is greater than or equal to the second preset duration.

The high-level duration corresponding to the delimiter can be considered as the high-level duration included in the delimiter. The low-level duration corresponding to the delimiter can be considered as the low-level duration included in the delimiter. The high-level duration contained in the delimiter can be understood as the high-level duration in the level signal used to characterize the delimiter; the low-level duration contained in the delimiter can be understood as, used to represent the demarcation. The duration of the low level in the symbol level signal. The first preset duration is a preset value, which may be 10ms, 50ms, or 100ms, for example. The second preset duration is a preset value, which may be 10ms, 50ms, or 100ms, for example.

Optionally, the wake-up signal also includes data information.

It should be noted that the data information in the wake-up signal may be the data part.

Wherein, the wake-up signal of the first structure includes a delimiter, a first-level preamble, and data information (i.e., data part) in sequence;

The wake-up signal of the second structure includes a delimiter, a first-level preamble, a second-level preamble, and data information (i.e., the data part) in sequence;

The wake-up signal of the third structure includes a first-level preamble and data information (i.e., data part) in sequence;

The wake-up signal of the fourth structure includes a first-level preamble, a second-level preamble, and data information (i.e., the data part) in sequence;

The wake-up signal of the fifth structure includes a first-level preamble, a cyclic suffix, and data information (i.e., the data part) in sequence;

The wake-up signal of the sixth structure includes a first-level preamble, a cyclic suffix, a second-level preamble, and data information (ie, the data part) in sequence.

Optionally, in the case where the wake-up signal includes a delimiter and a first-level preamble, the delimiter and/or the first-level preamble carry signal type information;

In the case where the wake-up signal does not include a delimiter, the first-level preamble carries signal type information.

The signal type information may be used to indicate whether it is a wake-up signal.

Optionally, the wake-up signal includes target information, and the target information includes at least one of the following:

Sender ID;

Receiver ID;

Transmission parameters.

The sending end identifier can be used to identify the sending end. For example, the sending end identifier can be used to uniquely identify the sending end. The receiving end identifier can be used to identify the receiving end or the group to which the receiving end belongs. For example, the receiving end identifier can be used to uniquely identify the receiving end. Transfer parameters may be used to indicate attribute parameters of the data portion of the wake-up signal.

In one implementation, the target information includes:

Sending end identification; receiving end identification; transmission parameters.

For the wake-up signal of the first structure and the wake-up signal of the second structure:

The delimiter and/or the first-level preamble carry signal type information: low-power wake-up signal;

The first-level preamble can also carry at least one of the target information;

When the secondary preamble exists, it carries at least one of the above target information that is not carried by the primary preamble;

The data part carries at least one of the above target information that is not carried by the primary preamble and the secondary preamble.

For the wake-up signal of the third structure, the wake-up signal of the fourth structure, the wake-up signal of the fifth structure and the wake-up signal of the sixth structure:

The first-level preamble carries signal type information: low-power wake-up signal;

The first-level preamble can also carry at least one of the target information;

When the secondary preamble exists, it carries at least one of the above target information that is not carried by the primary preamble;

The data part carries at least one of the above target information that is not carried by the primary preamble and the secondary preamble.

Optionally, the transmission parameter includes a data unit length of data information of the wake-up signal. Therefore, the data unit length of the data part in the wake-up signal can be obtained through the transmission parameter.

The unit of the data unit length of the data information of the wake-up signal may be: slot, symbol, ms, etc., which is not limited in this embodiment.

Optionally, the first-level preamble carries at least one item of the target information.

Optionally, the first target wake-up signal carries the first part of the target information through the first-level preamble, and carries the second part of the target information through the data information, wherein the first target wake-up signal is In any one of the first wake-up signal, the third wake-up signal and the fifth wake-up signal, the first part and the second part do not overlap;

or

The second target wake-up signal carries the first part of the target information through the first-level preamble, the second part of the target information through the second-level preamble, and the third part of the target information through the data information. Three parts, wherein the second target wake-up signal is any one of the second wake-up signal, the fourth wake-up signal and the sixth wake-up signal, and the first part, the second part and the third part do not overlap .

The first part may include at least one item of target information, or the first part may be empty. The second part may include at least one item of target information. The third part may include at least one item of target information.

In one implementation, in the wake-up signal of the first target structure, the data information carries first information, and the first information includes at least one part of the target information that is not carried in the first-level preamble. Item, wherein the first target structure is at least one of the first structure, the third structure and the fifth structure;

and / or

In the wake-up signal of the second target structure, the second-level preamble carries second information, the data information carries third information, and the second information includes the target information that is not carried in the first-level preamble. At least one item in the code, the third information includes at least one item in the target information that is not carried in the first-level preamble and is not carried in the second-level preamble, wherein the third The second target structure is at least one of the second structure, the fourth structure and the sixth structure.

In this embodiment, by designing the wake-up signals of the first structure, the second structure, the third structure, the fourth structure, the fifth structure and the sixth structure, the target information can be transmitted through the wake-up information.

The following illustrates the signal sending method according to the embodiment of the present application through two specific embodiments:

Example 1:

Example 1-1:

The sending end sends a wake-up signal. The wake-up signal may be a low-power wake-up signal. The structure of the wake-up signal is a first structure or a second structure, where, as shown in Figure 5,

The wake-up signal of the first structure: contains delimiters, first-level preamble code (in the case of only including first-level preamble code, the first-level preamble code can be directly called the preamble code), and data information (ie, the data part);

The wake-up signal of the second structure: sequentially includes delimiters, preamble 1 (i.e., the first-level preamble), preamble 2 (i.e., the second-level preamble), and data information (i.e., the data part).

The length of each part of the wake-up signal is for illustrative purposes only and does not represent the actual length. The delimiter may include at least one transition from high level to low level, and/or from low level to high level. As shown in FIG. 6 , the delimiter may include at least one transition from high level to low level and from low level to high level. The high-level duration of the delimiter is not less than the first preset duration, and the high-level duration can be a continuous accumulated time or a discontinuous accumulated total time.

In addition, the low-power receiver, that is, the receiving end iteratively adjusts the comparator threshold value during the high-level duration of the delimiter until stable or the end of the high-level duration. For example, the comparator threshold can be adjusted according to the following two methods. One method of adjusting the comparator threshold is: according to the period of time L starting from the high-level start time during the high-level duration. The value obtained by averaging the received signal amplitude (the input value of the comparator) is used as the comparator threshold value. For example, at time n, the comparator threshold can be set to: [scalar 1*average(f(n-L):f(n-m))+scalar2*average(f(n-m+1):f(n-1 ))]/2L, where n-L is the starting time of high level, scalar 1 and scalar 2 are both greater than 0 and less than or equal to 1, m is a value greater than n-L and less than n, f(x) represents time x signal amplitude. Another method of adjusting the comparator threshold can be to calculate the comparator threshold based on the maximum posterior probability criterion of the received wake-up signal.

The wake-up signal of the first structure or the second structure is used so that the low-power receiver has adjusted the comparator threshold to an appropriate value based on the signal received during the delimiter period before performing sequence detection on the preamble, thereby The success probability of preamble sequence detection can be improved.

It should be noted that the low-power receiver can continuously adjust the comparator threshold during the process of receiving the wake-up signal, thereby further improving the detection performance of the wake-up signal.

Example 1-2:

The transmitting end sends a wake-up signal. The wake-up signal may be a low-power wake-up signal. The structure of the wake-up signal is the third structure or the fourth structure, wherein, as shown in Figure 7,

The third structure: contains the first-level preamble (in the case of only including the first-level preamble, the first-level preamble can be directly called the preamble), and data information (i.e., the data part);

The fourth structure: includes preamble 1 (i.e., the first-level preamble), preamble 2 (i.e., the second-level preamble), and data information (i.e., the data part) in sequence.

The length of each part of the wake-up signal is for illustrative purposes only and does not represent the actual length. As shown in Figure 8, the sequence corresponding to the first-level preamble can be marked as the main sequence. The first-level preamble can contain a subsequence of a certain length starting from the starting position. The length of the subsequence is not greater than the length corresponding to the first-level preamble. Sequence length. The subsequence in the primary preamble may be a sequence of a determined pattern, and the pattern may be preconfigured through network configuration or protocol.

In addition, the low-power receiver, that is, the receiving end can iteratively adjust the comparator threshold according to the sub-sequence in the first-level preamble until stable or the end of the sub-sequence. For example, the comparator threshold can be adjusted according to the following two methods. One method of adjusting the comparator threshold is: according to the signal amplitude corresponding to the subsequence in the received first-level preamble (the input value of the comparator) The average value is used as the threshold value of the comparator. For example, when receiving the nth bit of the subsequence, the comparator threshold can be set to: [scalar 1*average(f(1):f(n-m))+scalar2*average(f(n-m+1) :f(n-1))]/(n-1), scalar 1 and scalar 2 are values greater than 0 and less than or equal to 1, m is an integer greater than 1 and less than n, f(x) represents the xth of the sequence signal amplitude. Another method of adjusting the comparator threshold is to calculate the comparator threshold based on the maximum posterior probability criterion of the received wake-up signal.

The wake-up signal of the third structure or the fourth structure is used, so that the low-power receiver adjusts the comparator threshold according to the received determination signal during a period of time when the main sequence detection of the preamble begins, that is, the sub-sequence duration An appropriate value can improve the success probability of subsequent main sequence detection.

It should be noted that the low-power receiver can continuously adjust the comparator threshold during the process of receiving the wake-up signal, thereby further improving the detection performance of the wake-up signal.

Example 1-3:

The transmitting end sends a wake-up signal. The wake-up signal may be a low-power wake-up signal. The structure of the wake-up signal is the fifth structure or the sixth structure, wherein, as shown in Figure 9,

The wake-up signal of the fifth structure: contains the first-level preamble (in the case of only including the first-level preamble, the first-level preamble can be directly called the preamble), the cyclic suffix, and the data information (that is, the data part)

The wake-up signal of the sixth structure: sequentially includes preamble 1 (i.e., the first-level preamble), cyclic suffix, preamble 2 (i.e., the second-level preamble), and data information (i.e., the data part).

The length of each part of the wake-up signal is for illustrative purposes only and does not represent the actual length. As shown in Figure 10, the cyclic suffix can be obtained by intercepting and copying a part of a certain length starting from the starting position of the first-level preamble. The length of the cyclic suffix can be preconfigured through network configuration or protocol.

As shown in Figure 11, the low-power receiver, that is, the receiving end performs sequence detection while adjusting the comparator threshold starting from the first-level preamble, and continues to adjust the comparator threshold until stable. When the first-level preamble is successfully detected, the cyclic suffix detection can be continued or stopped until the end of the cyclic suffix and the remaining part of the low-power wake-up signal is continued to be detected; if the first-level preamble fails to be detected, the cyclic suffix detection continues through the sequence. The method detects the first-level preamble until the detection is successful. The advantage of cyclic suffix detection is that when the communication environment conditions are good, the comparator threshold can be set to an appropriate threshold in a short time, so the preamble detection has a high probability of success and cyclic suffix detection can be skipped; when the communication environment conditions When the error is poor, you can increase the number of preamble detections through one- to multiple-bit cyclic suffix detection, which greatly improves the probability of successful detection.

In addition, the low-power receiver, that is, the receiving end iteratively adjusts the comparator threshold according to the first part of the first-level preamble corresponding to the cyclic suffix until stable or the end of this part. For example, the comparator threshold can be adjusted according to the following two methods. One method of adjusting the comparator threshold is: according to the signal amplitude corresponding to the subsequence corresponding to the cyclic suffix in the received first-level preamble (compare The value obtained by averaging the input value of the comparator is used as the threshold value of the comparator. For example, when receiving the nth bit of this part of the first-level preamble, the comparator threshold can be set to: [scalar 1*average(f(1):f(n-m))+scalar2*average(f(n -m+1):f(n-1))]/(n-1), scalar 1 and scalar 2 are both greater than 0 and less than or equal to 1, f(x) represents the signal at the xth bit of the sequence amplitude. Another method of adjusting the comparator threshold is to calculate the comparator threshold based on the maximum posterior probability criterion of the received wake-up signal.

It should be noted that the low-power receiver can continuously adjust the comparator threshold during the process of receiving the wake-up signal, thereby further improving the detection performance of the wake-up signal.

In the above embodiment, the low-power wake-up signal can adopt on-off keying (OOK) modulation. OOK modulation is a special form of ASK modulation and only contains two amplitudes of 0 and 1.

Example 2:

The structure of the wake-up signal sent by the sending end and/or the wake-up signal received by the receiving end is any one of the first structure, the second structure, the third structure, the fourth structure, the fifth structure, and the sixth structure in Embodiment 1 item.

Wake-up signals for the first structure and the second structure:

The delimiter and/or the first-level preamble carry signal type information, and the signal type information is used to indicate a low-power wake-up signal;

The first-level preamble can also carry at least one type of target information, and the target information can include: sender identification, transmission parameters, and receiver identification;

When the secondary preamble exists, it carries at least one of the target information that is not carried by the primary preamble;

The data part carries at least one of the target information that is not carried by the primary preamble and the secondary preamble.

Wake-up signals for the third structure, the fourth structure, the fifth structure and the sixth structure:

The first-level preamble carries signal type information, which is used to indicate a low-power wake-up signal;

The first-level preamble can also carry at least one type of target information, and the target information can include: sender identification, transmission parameters, and receiver identification;

When the secondary preamble exists, it carries at least one of the target information that is not carried by the primary preamble;

The data part carries at least one of the target information that is not carried by the primary preamble and the secondary preamble.

Among them, the sender identifier is used to uniquely identify the sender.

The transmission parameters include the data unit length of the data part of the low-power wake-up signal. The unit of the data unit length can be any of the following: slot, symbol, ms.

The signal type information can be used to indicate whether it is a low-power wake-up signal.

The receiver ID can be used to identify the group to which the receiver belongs, or to uniquely identify the receiver.

Specifically, the method for delimiters to carry information is to divide different values of the information into different sets, which are indicated by multiple delimiter patterns. For example, the delimiter carries information 1, including value 1 and value 2, then send the delimiter The symbol 1-2 pattern is used to indicate message 1-2.

In one implementation, the method for the preamble to carry information is to divide different values of the information into different sets, which are indicated by multiple preambles. For example, the preamble carries information 1 and information 2, and information 1 contains the values 1 and 2. Value 2, information 2 contains value a and value b, so information set 1 = {information 1 takes value 1, information 2 takes value a}, information set 2 = {information 1 takes value 2, information 2 takes value a }, information set 3 = {information 1 takes the value 1, information 2 takes the value b}, information set 4 = {information 1 takes the value 2, information 2 takes the value b}. Therefore, the preamble 1-4 can be used to indicate the information set 1-4. The preamble can be a specifically designed sequence of a certain length. When the beacon signal is modulated by On-Off Keying (OOK), the value of each element of the sequence is 0 or 1. The above preamble may include a first-level preamble and a second-level preamble.

In one implementation, the method for the data part in the wake-up signal to carry information is: each information field indicates a kind of information, and the data part may include multiple information fields to indicate multiple types of information. For example, the data part may include an information field. 1 and information field 2 to indicate information 1 and information 2 respectively. Information 1 contains value 1 and value 2, and information 2 contains value a and value b. Then information field 1 and information field 2 can respectively use 1 bit. to instruct.

In another implementation, the method for carrying information in the data part is: dividing different values of the information into different sets, which are indicated by multiple bits. For example, the data part carries information 1 and information 2, and information 1 contains the values 1 and 2. Value 2, information 2 contains value a and value b, so information set 1 = {information 1 takes value 1, information 2 takes value a}, information set 2 = {information 1 takes value 2, information 2 takes value a }, information set 3 = {information 1 takes the value 1, information 2 takes the value b}, information set 4 = {information 1 takes the value 2, information 2 takes the value b}. Thus, 4 information sets can be indicated by 2 bits.

Referring to Figure 12, Figure 12 is a flow chart of an information sending method provided by an embodiment of the present application. As shown in Figure 12, the information sending method includes the following steps:

Step 201: The receiving end receives the wake-up signal sent by the sending end;

Wherein, the wake-up signal includes a first signal used to determine a threshold value for signal demodulation.

Optionally, the wake-up signal includes at least one of the following:

as a cyclic suffix of said first signal;

As the first-level preamble of the first signal;

as the delimiter of the first signal.

Optionally, the wake-up signal is any one of the following:

The first wake-up signal including the delimiter and the first-level preamble;

The second wake-up signal includes the delimiter, the first-level preamble and the second-level preamble;

a third wake-up signal including a first-level preamble;

The fourth wake-up signal includes the first-level preamble and the second-level preamble;

The fifth wake-up signal includes the first-level preamble and cyclic suffix;

The sixth wake-up signal includes the first-level preamble, cyclic suffix and second-level preamble.

Optionally, the wake-up signal includes a primary preamble and a cyclic suffix, and the sequence of the cyclic suffix overlaps with a partial sequence in the primary preamble.

Optionally, the sequence of the cyclic suffix includes a sequence of a preset length starting from the starting position in the first-level preamble.

Optionally, the first-level preamble includes a preset sequence, and the preset sequence is set starting from a starting position of the first-level preamble.

It should be noted that this embodiment is an implementation of the receiving end corresponding to the embodiment shown in Figure 2. For its specific implementation, please refer to the relevant description of the embodiment shown in Figure 2. In order to avoid repeated explanation, this implementation The examples will not be repeated again. The threshold value of signal demodulation is determined by the first signal in the wake-up signal sent by the transmitting end, so that the threshold value for determining the signal amplitude level of the wake-up signal can be determined in combination with the actual communication environment, and the accuracy of determining the signal amplitude can be improved. accuracy.

For the information sending method provided by the embodiments of the present application, the execution subject may be an information sending device. In the embodiment of the present application, an information sending device performing an information sending method is used as an example to illustrate the information sending device provided by the embodiment of the present application.

Please refer to Figure 13. Figure 13 is a structural diagram of an information sending device provided by an embodiment of the present application. The sending end includes the information sending device. As shown in Figure 13, the information sending device 300 includes:

The sending module 301 is used to send a wake-up signal to the receiving end;

Wherein, the wake-up signal includes a first signal used to determine a threshold value for signal demodulation.

Optionally, the wake-up signal includes at least one of the following:

as a cyclic suffix of said first signal;

As the first-level preamble of the first signal;

as the delimiter of the first signal.

Optionally, the wake-up signal is any one of the following:

The first wake-up signal including the delimiter and the first-level preamble;

The second wake-up signal includes the delimiter, the first-level preamble and the second-level preamble;

a third wake-up signal including a first-level preamble;

The fourth wake-up signal includes the first-level preamble and the second-level preamble;

The fifth wake-up signal includes the first-level preamble and cyclic suffix;

The sixth wake-up signal includes the first-level preamble, cyclic suffix and second-level preamble.

Optionally, the wake-up signal includes a primary preamble and a cyclic suffix, and the sequence of the cyclic suffix overlaps with a partial sequence in the primary preamble.

Optionally, the sequence of the cyclic suffix includes a sequence of a preset length starting from the starting position in the first-level preamble.

Optionally, the first-level preamble includes a preset sequence, and the preset sequence is set starting from a starting position of the first-level preamble.

Optionally, the high level duration corresponding to the delimiter is greater than or equal to the first preset duration;

and / or

The low level duration corresponding to the delimiter is greater than or equal to the second preset duration.

Optionally, the wake-up signal also includes data information.

Optionally, in the case where the wake-up signal includes a delimiter and a first-level preamble, the delimiter and/or the first-level preamble carry signal type information;

In the case where the wake-up signal does not include a delimiter, the first-level preamble carries signal type information.

Optionally, the wake-up signal includes target information, and the target information includes at least one of the following:

Sender ID;

Receiver ID;

Transmission parameters.

Optionally, the transmission parameter includes a data unit length of data information of the wake-up signal.

Optionally, the first-level preamble carries at least one item of the target information.

Optionally, the first target wake-up signal carries the first part of the target information through the first-level preamble, and carries the second part of the target information through the data information, wherein the first target wake-up signal is In any one of the first wake-up signal, the third wake-up signal and the fifth wake-up signal, the first part and the second part do not overlap;

or

The second target wake-up signal carries the first part of the target information through the first-level preamble, the second part of the target information through the second-level preamble, and the third part of the target information through the data information. Three parts, wherein the second target wake-up signal is any one of the second wake-up signal, the fourth wake-up signal and the sixth wake-up signal, and the first part, the second part and the third part do not overlap .

The information sending device in the embodiment of the present application can determine the threshold value of signal demodulation through the first signal in the wake-up signal sent by the sending end, so that it can determine the signal amplitude level of the wake-up signal in combination with the actual communication environment. The threshold value can improve the accuracy of determining the signal amplitude.

The information sending device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip. The electronic device may be a terminal or other devices other than the terminal. For example, terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.

The information sending device provided by the embodiment of the present application can implement each process implemented by the method embodiment in Figure 2 and achieve the same technical effect. To avoid duplication, the details will not be described here.

Please refer to Figure 14. Figure 14 is a structural diagram of an information receiving device provided by an embodiment of the present application. The receiving end includes the information receiving device. As shown in Figure 14, the information receiving device 400 includes:

The receiving module 401 is used to receive the wake-up signal sent by the sending end;

Wherein, the wake-up signal includes a first signal used to determine a threshold value for signal demodulation.

Optionally, the wake-up signal includes at least one of the following:

as a cyclic suffix of said first signal;

As the first-level preamble of the first signal;

as the delimiter of the first signal.

Optionally, the wake-up signal is any one of the following:

The first wake-up signal including the delimiter and the first-level preamble;

The second wake-up signal includes the delimiter, the first-level preamble and the second-level preamble;

a third wake-up signal including a first-level preamble;

The fourth wake-up signal includes the first-level preamble and the second-level preamble;

The fifth wake-up signal includes the first-level preamble and cyclic suffix;

The sixth wake-up signal includes the first-level preamble, cyclic suffix and second-level preamble.

Optionally, the wake-up signal includes a primary preamble and a cyclic suffix, and the sequence of the cyclic suffix overlaps with a partial sequence in the primary preamble.

Optionally, the sequence of the cyclic suffix includes a sequence of a preset length starting from the starting position in the first-level preamble.

Optionally, the first-level preamble includes a preset sequence, and the preset sequence is set starting from a starting position of the first-level preamble.

The information receiving device in the embodiment of the present application can determine the threshold value of signal demodulation through the first signal in the wake-up signal sent by the transmitter, so that it can determine the signal amplitude level of the wake-up signal in combination with the actual communication environment. The threshold value can improve the accuracy of determining the signal amplitude.

The information receiving device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip. The electronic device may be a terminal or other devices other than the terminal. For example, terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.

The information receiving device provided by the embodiment of the present application can implement each process implemented by the method embodiment in Figure 12 and achieve the same technical effect. To avoid duplication, the details will not be described here.

Optionally, as shown in Figure 15, this embodiment of the present application also provides a communication device 500, which includes a processor 501 and a memory 502. The memory 502 stores programs or instructions that can be run on the processor 501, such as , when the communication device 500 is the sending end, when the program or instruction is executed by the processor 501, each step of the above information sending method embodiment is implemented, and the same technical effect can be achieved. When the communication device 500 is the receiving end, when the program or instruction is executed by the processor 501, each step of the above information receiving method embodiment is implemented, and the same technical effect can be achieved. To avoid duplication, the details will not be described here.

An embodiment of the present application also provides a terminal, including a processor and a communication interface. The communication interface is used to send a wake-up signal to a receiving end; wherein the wake-up signal includes a first signal used to determine a threshold value for signal demodulation. ; Or, the communication interface is used to receive a wake-up signal sent by the sending end; wherein the wake-up signal includes a first signal used to determine a threshold value for signal demodulation. This terminal embodiment corresponds to the above-mentioned receiving end-side method embodiment or the sending-end side method embodiment. Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect. Specifically, FIG. 16 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.

The terminal 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, a processor 610, etc. At least some parts.

Those skilled in the art can understand that the terminal 600 may also include a power supply (such as a battery) that supplies power to various components. The power supply may be logically connected to the processor 610 through a power management system, thereby managing charging, discharging, and power consumption through the power management system. Management and other functions. The terminal structure shown in FIG. 16 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or some components may be combined or arranged differently, which will not be described again here.

It should be understood that in this embodiment of the present application, the input unit 604 may include a graphics processing unit (GPU) 6041 and a microphone 6042, and the graphics processor 6041 is responsible for the image capture device (such as Process the image data of still pictures or videos obtained by the camera). The display unit 606 may include a display panel 6061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 607 includes a touch panel 6071 and at least one of other input devices 6072 . Touch panel 6071, also called touch screen. The touch panel 6071 may include two parts: a touch detection device and a touch controller. Other input devices 6072 may include but are not limited to physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.

In this embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 601 can transmit it to the processor 610 for processing; in addition, the radio frequency unit 601 can send uplink data to the network side device. Generally, the radio frequency unit 601 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

Memory 609 may be used to store software programs or instructions as well as various data. The memory 609 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 instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc. Additionally, memory 609 may include volatile memory or non-volatile memory, or memory 609 may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory. Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM) , SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch link DRAM, SLDRAM) and direct memory bus random access memory (DirectRambus RAM, DRRAM). Memory 609 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

The processor 610 may include one or more processing units; optionally, the processor 610 integrates an application processor and a modem processor, where the application processor mainly handles operations related to the operating system, user interface, application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the above modem processor may not be integrated into the processor 610.

Wherein, when the terminal 600 serves as the sending end:

Radio frequency unit 601, used to send a wake-up signal to the receiving end;

Wherein, the wake-up signal includes a first signal used to determine a threshold value for signal demodulation.

Optionally, the wake-up signal includes at least one of the following:

as a cyclic suffix of said first signal;

As the first-level preamble of the first signal;

as the delimiter of the first signal.

Optionally, the wake-up signal is any one of the following:

The first wake-up signal including the delimiter and the first-level preamble;

The second wake-up signal includes the delimiter, the first-level preamble and the second-level preamble;

a third wake-up signal including a first-level preamble;

The fourth wake-up signal includes the first-level preamble and the second-level preamble;

The fifth wake-up signal includes the first-level preamble and cyclic suffix;

The sixth wake-up signal includes the first-level preamble, cyclic suffix and second-level preamble.

Optionally, the wake-up signal includes a primary preamble and a cyclic suffix, and the sequence of the cyclic suffix overlaps with a partial sequence in the primary preamble.

Optionally, the sequence of the cyclic suffix includes a sequence of a preset length starting from the starting position in the first-level preamble.

Optionally, the first-level preamble includes a preset sequence, and the preset sequence is set starting from a starting position of the first-level preamble.

Optionally, the high level duration corresponding to the delimiter is greater than or equal to the first preset duration;

and / or

The low level duration corresponding to the delimiter is greater than or equal to the second preset duration.

Optionally, the wake-up signal also includes data information.

Optionally, in the case where the wake-up signal includes a delimiter and a first-level preamble, the delimiter and/or the first-level preamble carry signal type information;

In the case where the wake-up signal does not include a delimiter, the first-level preamble carries signal type information.

Optionally, the wake-up signal includes target information, and the target information includes at least one of the following:

Sender ID;

Receiver ID;

Transmission parameters.

Optionally, the transmission parameter includes a data unit length of data information of the wake-up signal.

Optionally, the first-level preamble carries at least one item of the target information.

Optionally, the first target wake-up signal carries the first part of the target information through the first-level preamble, and carries the second part of the target information through the data information, wherein the first target wake-up signal is In any one of the first wake-up signal, the third wake-up signal and the fifth wake-up signal, the first part and the second part do not overlap;

or

The second target wake-up signal carries the first part of the target information through the first-level preamble, the second part of the target information through the second-level preamble, and the third part of the target information through the data information. Three parts, wherein the second target wake-up signal is any one of the second wake-up signal, the fourth wake-up signal and the sixth wake-up signal, and the first part, the second part and the third part do not overlap .

In this embodiment, a wake-up signal is sent to the receiving end; wherein the wake-up signal includes a first signal used to determine a threshold value for signal demodulation. The threshold value of signal demodulation is determined by the first signal in the wake-up signal sent by the transmitting end, so that the threshold value for determining the signal amplitude level of the wake-up signal can be determined in combination with the actual communication environment, and the accuracy of determining the signal amplitude can be improved. accuracy.

When the terminal 600 serves as the receiving end:

Radio frequency unit 601, used to receive the wake-up signal sent by the transmitting end;

Wherein, the wake-up signal includes a first signal used to determine a threshold value for signal demodulation.

Optionally, the wake-up signal includes at least one of the following:

as a cyclic suffix of said first signal;

As the first-level preamble of the first signal;

as the delimiter of the first signal.

Optionally, the wake-up signal is any one of the following:

The first wake-up signal including the delimiter and the first-level preamble;

The second wake-up signal includes the delimiter, the first-level preamble and the second-level preamble;

a third wake-up signal including a first-level preamble;

The fourth wake-up signal includes the first-level preamble and the second-level preamble;

The fifth wake-up signal includes the first-level preamble and cyclic suffix;

The sixth wake-up signal includes the first-level preamble, cyclic suffix and second-level preamble.

Optionally, the wake-up signal includes a primary preamble and a cyclic suffix, and the sequence of the cyclic suffix overlaps with a partial sequence in the primary preamble.

Optionally, the sequence of the cyclic suffix includes a sequence of a preset length starting from the starting position in the first-level preamble.

Optionally, the first-level preamble includes a preset sequence, and the preset sequence is set starting from a starting position of the first-level preamble.

In this embodiment, a wake-up signal sent by the transmitting end is received; wherein the wake-up signal includes a first signal used to determine a threshold value for signal demodulation. The threshold value of signal demodulation is determined by the first signal in the wake-up signal sent by the transmitting end, so that the threshold value for determining the signal amplitude level of the wake-up signal can be determined in combination with the actual communication environment, and the accuracy of determining the signal amplitude can be improved. accuracy.

An embodiment of the present application also provides a network side device, including a processor and a communication interface. The communication interface is configured to send a wake-up signal to the receiving end, where the wake-up signal includes a threshold for determining signal demodulation. A first signal of value; or, the communication interface is used to: receive a wake-up signal sent by the sending end; wherein the wake-up signal includes: the first signal is used to train a low-power consumption module of the receiving end. This network-side device embodiment corresponds to the above-mentioned sending-end method embodiment or receiving-end method embodiment. Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technology. Effect.

Specifically, the embodiment of the present application also provides a network side device. As shown in Figure 17, the network side device 700 includes: an antenna 701, a radio frequency device 702, a baseband device 703, a processor 704 and a memory 705. The antenna 701 is connected to the radio frequency device 702 . In the uplink direction, the radio frequency device 702 receives information through the antenna 701 and sends the received information to the baseband device 703 for processing. In the downlink direction, the baseband device 703 processes the information to be sent and sends it to the radio frequency device 702. The radio frequency device 702 processes the received information and then sends it out through the antenna 701.

The method performed by the network side device in the above embodiment can be implemented in the baseband device 703, which includes a baseband processor.

The baseband device 703 may include, for example, at least one baseband board on which multiple chips are disposed, as shown in FIG. Program to perform the network device operations shown in the above method embodiments.

The network side device may also include a network interface 706, which is, for example, a common public radio interface (CPRI).

Specifically, the network side device 700 in this embodiment of the present invention also includes: instructions or programs stored in the memory 705 and executable on the processor 704. The processor 704 calls the instructions or programs in the memory 705 to execute Figure 13 or Figure 14 The execution methods of each module are shown and achieve the same technical effect. To avoid repetition, they will not be described in detail here.

Embodiments of the present application also provide a readable storage medium, with a program or instructions stored on the readable storage medium. When the program or instructions are executed by a processor, each process of the above-mentioned information sending method or information receiving method embodiment is implemented. And can achieve the same technical effect. To avoid repetition, they will not be described again here.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, etc.

An embodiment of the present application further provides a chip. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the above information sending method or information receiving. Each process of the method embodiment can achieve the same technical effect, so to avoid repetition, it will not be described again here.

It should be understood that the chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.

Embodiments of the present application further provide a computer program/program product. The computer program/program product is stored in a storage medium. The computer program/program product is executed by at least one processor to implement the above information sending method or information. Each process of the receiving method can achieve the same technical effect. To avoid repetition, it will not be described again here.

Embodiments of the present application also provide an information transceiver system, including: a sending end and a receiving end. The sending end can be used to perform the steps of the information sending method as described above. The receiving end can be used to perform the information sending method as described above. The steps of the receiving method.

It should be noted that, in this document, the terms "comprising", "comprises" or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device that includes a series of elements not only includes those elements, It also includes other elements not expressly listed or inherent in the process, method, article or apparatus. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article or apparatus that includes that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions may be performed, for example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology. The computer software product is stored in a storage medium (such as ROM/RAM, disk , CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Inspired by this application, many forms can be made without departing from the purpose of this application and the scope protected by the claims, all of which fall within the protection of this application.

Claims (23)

1. An information transmission method, comprising:

the sending end sends a wake-up signal to the receiving end;

wherein the wake-up signal comprises a first signal for determining a threshold value for signal demodulation.

2. The method of claim 1, wherein the wake-up signal comprises at least one of:

as a cyclic suffix to the first signal;

as a primary preamble of the first signal;

as a delimiter of the first signal.

3. The method of claim 1, wherein the wake-up signal is any one of:

a first wake-up signal comprising a delimiter and a primary preamble;

a second wake-up signal comprising a delimiter, a primary preamble and a secondary preamble;

a third wake-up signal comprising a primary preamble;

a fourth wake-up signal comprising a primary preamble and a secondary preamble;

a fifth wake-up signal comprising a primary preamble and a cyclic suffix;

a sixth wake-up signal comprising a primary preamble, a cyclic suffix and a secondary preamble.

4. A method according to any of claims 1 to 3, wherein the wake-up signal comprises a primary preamble and a cyclic suffix, the sequence of the cyclic suffix overlapping a partial sequence in the primary preamble.

5. The method of claim 4, wherein the sequence of the cyclic postfix is a sequence of a preset length from a start position in the primary preamble.

6. A method according to any one of claims 2 to 3, wherein the primary preamble comprises a pre-set sequence, the pre-set sequence being set starting from a starting position of the primary preamble.

7. A method according to any one of claims 2 to 3, wherein the high level duration corresponding to the delimiter is greater than or equal to a first preset duration;

and/or

And the low-level duration time corresponding to the delimiter is greater than or equal to a second preset duration time.

8. A method according to claim 3, characterized in that the wake-up signal further comprises data information.

9. The method according to claim 8, wherein in case the wake-up signal comprises a delimiter and a primary preamble, the delimiter and/or the primary preamble carries signal type information;

in the case that the wake-up signal does not include a delimiter, the primary preamble carries signal type information.

10. The method of claim 9, wherein the wake-up signal comprises target information comprising at least one of:

A transmitting end identifier;

a receiving end mark;

and transmitting the parameters.

11. The method of claim 10, wherein the transmission parameter comprises a data unit length of data information of a wake-up signal.

12. The method of claim 10, wherein a first target wake-up signal carries a first portion of the target information via the primary preamble and a second portion of the target information via the data information, wherein the first target wake-up signal is any one of the first wake-up signal, a third wake-up signal, and a fifth wake-up signal, the first portion and the second portion not overlapping;

or alternatively

The second target wake-up signal carries a first part of the target information through the primary preamble, carries a second part of the target information through the secondary preamble, and carries a third part of the target information through the data information, wherein the second target wake-up signal is any one of the second wake-up signal, the fourth wake-up signal and the sixth wake-up signal, and the first part, the second part and the third part are all non-overlapped.

13. An information receiving method, comprising:

The receiving end receives a wake-up signal sent by the sending end;

wherein the wake-up signal comprises a first signal for determining a threshold value for signal demodulation.

14. The method of claim 13, wherein the wake-up signal comprises at least one of:

as a cyclic suffix to the first signal;

as a primary preamble of the first signal;

as a delimiter of the first signal.

15. The method of claim 13, wherein the wake-up signal is any one of:

a first wake-up signal comprising a delimiter and a primary preamble;

a second wake-up signal comprising a delimiter, a primary preamble and a secondary preamble;

a third wake-up signal comprising a primary preamble;

a fourth wake-up signal comprising a primary preamble and a secondary preamble;

a fifth wake-up signal comprising a primary preamble and a cyclic suffix;

a sixth wake-up signal comprising a primary preamble, a cyclic suffix and a secondary preamble.

16. The method according to any of claims 13 to 15, wherein the wake-up signal comprises a primary preamble and a cyclic suffix, the sequence of the cyclic suffix overlapping a partial sequence in the primary preamble.

17. The method of claim 16, wherein the sequence of cyclic suffixes comprises a sequence of a preset length from a start position in the primary preamble.

18. The method according to any one of claims 14 to 15, wherein the primary preamble comprises a preset sequence, the preset sequence being set starting from a start position of the primary preamble.

19. An information transmission apparatus, a transmission terminal including the information transmission apparatus, comprising:

the sending module is used for sending a wake-up signal to the receiving end;

wherein the wake-up signal comprises a first signal for determining a threshold value for signal demodulation.

20. An information receiving apparatus, a receiving end including the information receiving apparatus, characterized by comprising:

the receiving module is used for receiving the wake-up signal sent by the sending end;

wherein the wake-up signal comprises a first signal for determining a threshold value for signal demodulation.

21. A transmitting terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the information transmission method according to any one of claims 1 to 12.

22. A receiving end comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the information receiving method according to any one of claims 13 to 18.

23. A readable storage medium, characterized in that the readable storage medium stores thereon a program or instructions, which when executed by a processor, implement the steps of the information transmission method according to any one of claims 1 to 12, or the steps of the information reception method according to any one of claims 13 to 18.