Communication method, apparatus, storage medium, and device

Abstract

The application discloses a communication method, device, storage medium and equipment, relates to the technical field of communication, and comprises the following steps: when a wideband communication system of a device comprising a wideband communication system and a narrowband communication system meets a predetermined dormancy condition, the wideband communication system is controlled to enter a dormant state; when a narrowband communication system meets a predetermined detection condition, the narrowband communication system is switched to a candidate wideband operating frequency point of the wideband communication system to collect signals and obtain wideband frequency point data; whether there is a wideband network signal on the wideband frequency point data is detected; and if the wideband network signal exists on the wideband frequency point data, the wideband communication system is woken up. The application can make the wideband communication system of a wide-narrow integrated communication device reliably work on demand, and reliably reduce the energy consumption of the wide-narrow integrated communication device.

Description

Technical Field

[0001] This application relates to the field of communication technology, specifically to a communication method, apparatus, storage medium, and device. Background Technology

[0002] Broadband and narrowband converged communication equipment (i.e., equipment that includes both broadband and narrowband communication systems) can fully utilize the advantages of narrowband systems, such as long coverage distance and long battery life, as well as the advantages of broadband systems, such as high throughput and large data volume. It is gaining increasing attention and being widely used in network communication such as heterogeneous networks and ad hoc networks (especially UAV ad hoc networks).

[0003] However, in converged broadband and narrowband communication devices, each typically detects its own operating bandwidth signal independently. That is, narrowband communication systems only receive narrowband network signals, and broadband communication systems only receive broadband network signals. This requires the broadband communication system to be constantly operational, resulting in significant energy waste. In particular, many broadband communication systems are often multi-antenna MIMO (Multiple-Input Multiple-Output) systems, whose radio frequency units often contain multiple antenna elements; if they are constantly operational, energy consumption is even higher. Summary of the Invention

[0004] This application provides a communication scheme that enables the broadband communication system in a broadband-narrowband converged communication device to work reliably on demand and reliably reduce the energy consumption of the broadband-narrowband converged communication device.

[0005] The embodiments of this application provide the following technical solutions:

[0006] According to one embodiment of this application, a communication method is applied to a device including a broadband communication system and a narrowband communication system. The method includes: controlling the broadband communication system to enter a sleep state when the broadband communication system meets predetermined sleep conditions; when the narrowband communication system meets predetermined detection conditions, switching the narrowband communication system to a candidate broadband operating frequency point of the broadband communication system to collect signals and obtain broadband frequency point data; detecting whether a broadband network signal exists on the broadband frequency point data; and waking up the broadband communication system if the broadband network signal exists on the broadband frequency point data.

[0007] In some embodiments of this application, the predetermined detection conditions include: the narrowband communication system being in a narrowband idle time slot and / or the device having broadband service requirements.

[0008] In some embodiments of this application, the predetermined hibernation conditions include: the device has no broadband service demand or the device loses its broadband network connectivity information.

[0009] In some embodiments of this application, detecting whether a broadband network signal exists on the broadband frequency data includes: performing a sliding correlation operation on the broadband frequency data and a pre-stored synchronization sequence to obtain a sliding correlation peak value; when the sliding correlation peak value is greater than a preset threshold value, it is determined that a broadband network signal exists on the broadband frequency data.

[0010] In some embodiments of this application, the step of switching from the narrowband communication system to a candidate broadband operating frequency of the broadband communication system for signal acquisition includes: switching from the narrowband communication system to the candidate broadband operating frequency and acquiring signals for a predetermined acquisition duration on the candidate broadband operating frequency, wherein the predetermined acquisition duration is greater than or equal to the repetition period of the synchronization sequence of the broadband communication system on the broadband communication physical frame structure.

[0011] In some embodiments of this application, the signal sampling rate of the narrowband communication system is greater than a predetermined multiple of the narrowband signal bandwidth, the predetermined multiple being greater than or equal to 2, and the narrowband signal bandwidth is the signal-occupied bandwidth of the narrowband network signal of the narrowband communication system.

[0012] In some embodiments of this application, the device is a node device in a wireless ad hoc network.

[0013] According to one embodiment of this application, a communication device is applied to an equipment including a broadband communication system and a narrowband communication system. The device includes: a sleep control module, configured to: control the broadband communication system to enter a sleep state when the broadband communication system meets predetermined sleep conditions; a switching detection module, configured to: switch the narrowband communication system to a candidate broadband operating frequency point of the broadband communication system to collect signals and obtain broadband frequency point data when the narrowband communication system meets predetermined detection conditions; a signal detection module, configured to: detect whether a broadband network signal exists on the broadband frequency point data; and a wake-up processing module, configured to: wake up the broadband communication system if the broadband network signal exists on the broadband frequency point data.

[0014] According to another embodiment of this application, a storage medium stores a computer program thereon, which, when executed by a device's processor, causes the device to perform the methods described in the embodiments of this application.

[0015] According to another embodiment of this application, an apparatus may include: a memory storing a computer program; and a processor reading the computer program stored in the memory to execute the methods described in the embodiments of this application.

[0016] According to another embodiment of this application, a computer program product or computer program includes computer instructions stored in a computer-readable storage medium. A processor of the device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the device to perform the methods provided in the various optional implementations described in the embodiments of this application.

[0017] In this embodiment of the application, in a device including a broadband communication system and a narrowband communication system, when the broadband communication system meets predetermined sleep conditions, the broadband communication system is controlled to enter a sleep state; when the narrowband communication system meets predetermined detection conditions, the narrowband communication system switches to a candidate broadband operating frequency point of the broadband communication system to collect signals and obtain broadband frequency point data; whether a broadband network signal exists on the broadband frequency point data; if the broadband network signal exists on the broadband frequency point data, the broadband communication system is woken up.

[0018] In this embodiment of the application, when the broadband communication system meets predetermined sleep conditions, it enters a sleep state, thereby reducing energy consumption. Furthermore, when the narrowband communication system meets predetermined detection conditions, it can switch to a candidate broadband operating frequency to collect broadband frequency data. If a broadband network signal is present on the broadband frequency data, the broadband communication system is then woken up, ensuring reliable and timely activation for operation. Thus, overall, the broadband communication system in the broadband-narrowband converged communication device can reliably operate on demand, reliably reducing the energy consumption of the broadband-narrowband converged communication device. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A device communication system architecture diagram according to an embodiment of this application is shown.

[0021] Figure 2 A flowchart of a communication method according to an embodiment of this application is shown.

[0022] Figure 3 A schematic diagram of network coverage according to an embodiment of this application is shown.

[0023] Figure 4 A schematic diagram of frequency switching detection according to an embodiment of this application is shown.

[0024] Figure 5 A schematic diagram of the physical frame structure for broadband communication according to an embodiment of this application is shown.

[0025] Figure 6 A schematic diagram of broadband occupancy according to an embodiment of this application is shown.

[0026] Figure 7 A schematic diagram of the sliding correlation peak value according to an embodiment of this application is shown.

[0027] Figure 8 A block diagram of a communication device according to an embodiment of this application is shown.

[0028] Figure 9 A block diagram of a device according to one embodiment of this application is shown. Detailed Implementation

[0029] The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the embodiments provided herein are merely illustrative of the present disclosure and are not intended to limit the present disclosure. Furthermore, the embodiments provided below are some embodiments for implementing the present disclosure, and not all embodiments for implementing the present disclosure. Unless otherwise specified, the technical solutions described in the embodiments of the present disclosure can be implemented in any combination.

[0030] It should be noted that, in the embodiments of this disclosure, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a method or apparatus that includes a list of elements includes not only the elements expressly described, but also other elements not expressly listed, or elements inherent to implementing the method or apparatus. Without further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other related elements (e.g., steps in the method or units in the apparatus; for example, a unit may be a portion of circuitry, a portion of a processor, a portion of a program or software, etc.) in the method or apparatus that includes that element.

[0031] For example, the communication method provided in this disclosure includes a series of steps, but the communication method provided in this disclosure is not limited to the steps described. Similarly, the communication device provided in this disclosure includes a series of units, but the device provided in this disclosure is not limited to the units explicitly described, but may also include units that need to be set up for obtaining relevant information or processing based on information.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure.

[0033] It is understood that in the specific implementation of this application, relevant data is involved. When the embodiments in this application are applied to specific products or technologies, user permission or consent is required, and the collection, use and processing of relevant data must comply with relevant laws, regulations and standards.

[0034] Broadband and narrowband converged communication equipment (i.e., equipment that includes both broadband and narrowband communication systems) can fully utilize the advantages of narrowband systems, such as long coverage distance and long battery life, as well as the advantages of broadband systems, such as high throughput and large data volume. It is gaining increasing attention and being widely used in network communication such as heterogeneous networks and ad hoc networks (especially UAV ad hoc networks).

[0035] However, in converged broadband and narrowband communication devices, each typically detects its own operating bandwidth signal independently. That is, narrowband communication systems only receive narrowband network signals, and broadband communication systems only receive broadband network signals. This requires the broadband communication system to be constantly operational, resulting in significant energy waste. In particular, many broadband communication systems are often multi-antenna MIMO (Multiple-Input Multiple-Output) systems, whose radio frequency units often contain multiple antenna elements; if they are constantly operational, energy consumption is even higher.

[0036] To address these issues, this application provides a communication solution that enables the broadband communication system in a converged broadband-narrowband communication device to operate reliably on demand and reliably reduce the energy consumption of the converged broadband-narrowband communication device.

[0037] The following is a detailed description of the relevant embodiments of the air conditioning control scheme provided in this application.

[0038] The broadband-narrowband converged communication device (i.e., a device including a broadband communication system and a narrowband communication system) described in this application embodiment can be a drone, vehicle-mounted device, user equipment (such as a mobile phone, smartwatch, etc.), or a robot, etc. Furthermore, the broadband-narrowband converged communication device may also include a converged processing unit. The broadband communication system may include a broadband hardware transceiver system and a broadband software transceiver system; the narrowband communication system may include a narrowband hardware transceiver system and a narrowband software transceiver system.

[0039] For example, such as Figure 1As shown, an example of a broadband-narrowband converged communication device 100 may include a broadband communication system 110, a narrowband communication system 120, and a converged processing unit 130. The broadband hardware transceiver system in the broadband communication system 110 may include a broadband antenna 111, a broadband analog-to-digital converter (ADC) 112, etc.; the broadband software transceiver system in the broadband communication system 110 may include a broadband processing unit 113. The narrowband hardware transceiver system in the narrowband communication system 120 may include a narrowband antenna 121, a narrowband analog-to-digital converter (ADC) 122, etc.; the narrowband software transceiver system in the narrowband communication system 120 may include a narrowband processing unit 123.

[0040] The convergence processing unit 130 is connected to the broadband processing unit 113 and also to the narrowband processing unit 123, thereby achieving service convergence processing. For example, in some cases, when the broadband communication system 110 and the narrowband communication system 120 need to perform service convergence processing, after the broadband processing unit 113 and the narrowband processing unit 123 each complete their initial service processing, they converge the pre-processed services to the convergence processing unit 130 for further comprehensive service processing, thus achieving comprehensive service processing. The convergence processing unit 130 can transmit narrowband services to the narrowband processing unit 123, and the convergence processing unit 130 can transmit broadband services to the broadband processing unit 113. The narrowband processing unit 123 is connected to the broadband processing unit 113, thereby enabling interaction between the broadband communication system 110 and the narrowband communication system 120. For example, the narrowband processing unit 123 can send wake-up commands to the broadband processing unit 113.

[0041] The broadband-narrowband converged communication device in this application embodiment can be a node device in a heterogeneous network, ad hoc network, or other communication network. Specifically, in one embodiment of this application, the broadband-narrowband converged communication device is a node device in a wireless ad hoc network. By applying the scheme of this application embodiment, the node device in the wireless ad hoc network can fully leverage the technical characteristics of narrowband and broadband communication systems, meet the application scenarios of various wireless channel environments, flexibly adjust the ad hoc network service requirements according to service type and communication distance, greatly reduce the operating energy consumption of the broadband communication system, improve the endurance of node devices in the broadband-narrowband converged wireless ad hoc network system, facilitate the construction and guarantee of low-altitude economical communication networks, and meet more wireless ad hoc network application areas, thus greatly improving the operational reliability of the wireless ad hoc network.

[0042] like Figure 2 As shown, the communication method may include steps S210 to S240.

[0043] Step S210: When the broadband communication system meets the predetermined sleep conditions, control the broadband communication system to enter a sleep state;

[0044] Step S220: When the narrowband communication system meets the predetermined detection conditions, the signal is acquired by switching to the candidate broadband operating frequency of the narrowband communication system through the narrowband communication system to obtain broadband frequency data.

[0045] Step S230: Detect whether there is a broadband network signal on the broadband frequency data;

[0046] Step S240: If a broadband network signal exists on the broadband frequency data, then the broadband communication system is woken up.

[0047] When the broadband communication system of a converged broadband and narrowband communication device (i.e., a device that includes both broadband and narrowband communication systems) meets the predetermined sleep conditions, the broadband communication system enters a sleep state. In the sleep state, the broadband communication system does not work, thus reducing power consumption.

[0048] However, after the broadband communication system enters a dormant state, the narrowband communication system can activate its broadband network signal detection function when the predetermined detection conditions are met. This allows the narrowband communication system to switch to the candidate broadband operating frequencies of the broadband communication system for signal acquisition, obtaining broadband frequency data collected at one or more candidate broadband operating frequencies. Furthermore, when the narrowband communication system does not meet the predetermined detection conditions, it can operate normally at narrowband operating frequencies within the narrowband frequency band.

[0049] The candidate broadband operating frequency point of a broadband communication system is the operating frequency point of the candidate broadband communication system. That is, in this embodiment of the application, the narrowband frequency band covered by the narrowband communication system includes the broadband frequency band of the broadband communication system, and the candidate broadband operating frequency point is the frequency point within the broadband frequency band. For example, the narrowband frequency band covered by the narrowband analog-to-digital converter 122 includes the broadband frequency band. Therefore, when the broadband communication system is in a sleep state (at which time the broadband analog-to-digital converter 112 does not perform signal acquisition), the narrowband analog-to-digital converter 122 in the narrowband communication system can switch to the candidate broadband operating frequency point to perform signal acquisition.

[0050] Furthermore, after acquiring broadband frequency data, a narrowband communication system can detect whether broadband network signals exist on the broadband frequency data (for example, by means of...). Figure 1 The narrowband processing unit 123 shown detects whether a broadband network signal exists on the broadband frequency data. If a broadband network signal exists on the broadband frequency data, it indicates that the broadband communication system can access the broadband network and operate. Furthermore, if a broadband network signal exists on the broadband frequency data, the broadband communication system is woken up (for example, by means of...). Figure 1The narrowband processing unit 123 sends a wake-up command to the broadband processing unit 113, thereby waking up the broadband communication system. This avoids the broadband communication system being unable to perform actual work after being woken up, thus ensuring the reliability of waking up the broadband communication system.

[0051] In addition, after waking up the broadband communication system, the function of the narrowband communication system to detect broadband network signals can be turned off, so that the narrowband communication system stops collecting signals at the candidate broadband operating frequency of the narrowband communication system, and the narrowband communication system can return to the narrowband operating frequency to work normally.

[0052] In summary, using the method described in this embodiment, the broadband communication system enters a sleep state when the predetermined sleep conditions are met, thereby reducing energy consumption. Furthermore, when the narrowband communication system meets the predetermined detection conditions, it can switch to a candidate broadband operating frequency to collect broadband frequency data. If a broadband network signal is present on the broadband frequency data, the broadband communication system is then woken up, ensuring reliable and timely activation for operation. Consequently, the broadband communication system in the broadband-narrowband converged communication device can reliably operate on demand, reliably reducing the energy consumption of the broadband-narrowband converged communication device.

[0053] The following description Figure 2 Further optional specific embodiments are provided for the steps performed during communication in the example implementation.

[0054] Step S210: When the broadband communication system meets the predetermined sleep conditions, control the broadband communication system to enter a sleep state.

[0055] In one embodiment, the predetermined sleep condition may include no broadband service demand in the device (e.g., if the device does not need to use a broadband network to transmit video or images, it is considered that there is no broadband service demand), and then, when there is no broadband service demand in the device, the broadband communication system is controlled to enter a sleep state.

[0056] Optionally, in another implementation, the predetermined sleep condition may include the device losing its broadband network connectivity information, and thus, when the device loses its broadband network connectivity information, the broadband communication system is controlled to enter a sleep state. For example, such as... Figure 3 As shown, the broadband coverage area of ​​the broadband communication system of device 310 is 311, and the broadband coverage area of ​​the broadband communication system of device 320 is 321. When the broadband coverage areas 311 and 321 do not overlap, device 310 loses its broadband network connectivity information. That is, when the broadband communication system of a device cannot detect the broadband network signal of other devices within its broadband coverage area, the device loses its broadband network connectivity information due to the long broadband communication distance.

[0057] In this context, the narrowband coverage of a device's broadband communication system is typically larger than its broadband coverage. For example, ... Figure 3 As shown, the narrowband coverage range of the narrowband communication system of device 310 is 312, and the narrowband coverage range of the narrowband communication system of device 320 is 322.

[0058] Step S220: When the narrowband communication system meets the predetermined detection conditions, the signal is acquired by switching the narrowband communication system to the candidate broadband operating frequency of the narrowband communication system to obtain broadband frequency data.

[0059] The predetermined detection conditions may include: the narrowband communication system being in a narrowband idle time slot and / or the equipment having broadband service requirements.

[0060] In one embodiment, the predetermined detection conditions include the narrowband communication system being in a narrowband idle time slot. Furthermore, the narrowband communication system operates normally in its narrowband working time slot, and after the broadband communication system enters a dormant state, whenever the narrowband communication system enters a narrowband idle time slot, it switches to the candidate broadband working frequency of the broadband communication system for signal acquisition.

[0061] See Figure 4 The narrowband communication system operates normally at the narrowband operating frequency during the narrowband operating time slot 410. After the broadband communication system enters the sleep state, when the narrowband communication system enters the narrowband idle time slot 420, the narrowband analog-to-digital converter (ADC) in the narrowband communication system switches to the candidate broadband operating frequency for signal acquisition.

[0062] Optionally, in another implementation, the predetermined detection conditions include the device having broadband service requirements. Furthermore, the narrowband communication system operates normally in its narrowband operating time slot. When the device has broadband service requirements, the narrowband communication system switches to a candidate broadband operating frequency of the broadband communication system for signal acquisition. For example, while the narrowband communication system is performing narrowband services normally in its narrowband operating time slot, even if it has not entered a narrowband idle time slot, it can interrupt the ongoing narrowband service and switch to a candidate broadband operating frequency of the broadband communication system for signal acquisition. Further, in some optional implementations, when the service level of the broadband service in the broadband service requirement is higher than a predetermined first level and the service level of the ongoing narrowband service is lower than a predetermined second level, the narrowband communication system interrupts the ongoing narrowband service and switches to a candidate broadband operating frequency of the broadband communication system for signal acquisition.

[0063] Alternatively, in another implementation, the predetermined detection conditions include the narrowband communication system being in a narrowband idle time slot and the device having broadband service requirements. Furthermore, the narrowband communication system operates normally in its narrowband working time slot. After the broadband communication system enters a sleep state, when the device has broadband service requirements and the narrowband communication system enters a narrowband idle time slot, the narrowband communication system switches to the candidate broadband working frequency of the broadband communication system for signal acquisition.

[0064] Furthermore, in one embodiment, signal acquisition via switching from a narrowband communication system to a candidate broadband operating frequency point of a broadband communication system may include: switching from the narrowband communication system to the candidate broadband operating frequency point and acquiring signals at the candidate broadband operating frequency point for a predetermined acquisition duration, wherein the predetermined acquisition duration is greater than or equal to the repetition period of the synchronization sequence of the broadband communication system in the broadband communication physical frame structure. The synchronization sequence may be a sequence used to maintain frame synchronization in a broadband network; for example, the synchronization sequence may be the synchronization signal (SS) in LTE and NR.

[0065] See Figure 5 In designing broadband networks, the following methods are used: Figure 5 The broadband communication physical frame structure 500 is used for communication. The synchronization sequence 510 of the broadband communication system has a time periodicity in the broadband communication physical frame structure. A synchronization sequence 510 is set every repetition period T (the repetition period of the synchronization sequence of the broadband communication system in the broadband communication physical frame structure). After the narrowband communication system switches to the candidate broadband operating frequency, signal acquisition is performed on the candidate broadband operating frequency for a predetermined acquisition duration. The predetermined acquisition duration is greater than or equal to the repetition period T, thereby ensuring that the acquired broadband frequency data contains a complete repetition period of the synchronization sequence. This ensures that the acquired broadband frequency data contains the synchronization sequence, and in subsequent steps, the presence of broadband network signals on the broadband frequency data can be accurately determined by detecting the synchronization sequence.

[0066] In heterogeneous networks, ad hoc networks, and other communication networks, some node devices (such as master node devices) can periodically or in real-time broadcast frequency point data carrying synchronization sequences in the broadband network. The frequency point data is configured according to... Figure 5 The data generated by the broadband communication physical frame structure 500 shown. Furthermore, the narrowband communication system switches to each candidate broadband operating frequency for signal acquisition, and can acquire broadband frequency data containing synchronization sequences at one or more candidate broadband operating frequencies.

[0067] For further details, please refer to [link / reference]. Figure 6The bandwidth occupied by the synchronization sequence (610 MHz) can be designed to be much smaller than the maximum operating bandwidth of the broadband network signal (620 MHz) in the broadband network. This allows for the detection of broadband network signals in a narrowband communication system while ensuring system efficiency. For example, the bandwidth ratio = "bandwidth occupied by the synchronization sequence" / "maximum operating bandwidth of the broadband network signal in the broadband network". "Much smaller than" can mean "bandwidth ratio is less than a predetermined ratio", where the predetermined ratio is a ratio set in advance based on actual conditions. This application does not impose any special limitations on this. For example, the bandwidth occupied by the synchronization sequence in LTE is 1.08 MHz, and the maximum operating bandwidth of LTE is 20 MHz. 1.08 MHz is much smaller than 20 MHz.

[0068] Step S230: Detect whether there is a broadband network signal on the broadband frequency data.

[0069] In one embodiment, detecting whether a broadband network signal exists on the broadband frequency data may include: performing a sliding correlation operation on the broadband frequency data and a pre-stored synchronization sequence to obtain a sliding correlation peak value; when the sliding correlation peak value is greater than a preset threshold value, it is determined that a broadband network signal exists on the broadband frequency data.

[0070] See Figure 7 The sliding correlation peak 710 is obtained by performing a sliding correlation operation on the broadband frequency data and the pre-stored synchronization sequence locally on the device. If the sliding correlation peak 710 is greater than a preset threshold, it indicates that a synchronization sequence from a broadband network exists in the broadband frequency data. Therefore, it can be accurately determined that a broadband network signal exists in the broadband frequency data. For example, it can be done through... Figure 1 The narrowband processing unit 123 shown "performs sliding correlation calculation on broadband frequency data and pre-stored synchronization sequence to obtain sliding correlation peak value, and determines whether the sliding correlation peak value is greater than a preset threshold value, and determines that there is a broadband network signal on the broadband frequency data when it is greater than the preset threshold value".

[0071] Synchronization sequences in broadband networks exhibit strong autocorrelation properties and regularity in their mapping to frequency domain resources. For example, in LTE or NR, synchronization sequences are mapped to specific frequency resources. Even when narrowband communication networks filter received signal data to obtain broadband frequency data, the synchronization sequences in the broadband frequency data only represent about half the original spectrum bandwidth. However, the synchronization sequences in the broadband frequency data still exhibit strong correlation, and the presence of broadband network synchronization sequences can be accurately detected through sliding correlation operations.

[0072] For example, in the synchronization sequence of a 5G mobile broadband network, the spectrum bandwidth occupied by a 30kHz subcarrier spacing is 3.81MHz. If the passband frequency of the digital filter in the narrowband communication system is 0.9MHz, after the initial signal data collected by the narrowband communication system is filtered by the digital filter to obtain broadband frequency data, only a 1.8MHz bandwidth signal remains in the broadband frequency data of the synchronization sequence. At this time, even if the signal-to-noise ratio of the receiver in the narrowband communication system is 0dB, the sharp sliding correlation peak obtained by the sliding correlation operation can still accurately detect whether there is a broadband network signal of the 5G mobile broadband network.

[0073] Furthermore, in one embodiment, the signal sampling rate of the narrowband communication system is greater than a predetermined multiple of the narrowband signal bandwidth, the predetermined multiple being greater than or equal to 2, and the narrowband signal bandwidth is the signal-occupied bandwidth of the narrowband network signal of the narrowband communication system.

[0074] The signal sampling rate of a narrowband communication system refers to the signal sampling rate of the narrowband analog-to-digital converter (ADC) within that system. The narrowband ADC can be a conventional ADC or an ADC with in-phase and quadrature modulation (IQ) complex sampling structure. According to the sampling theorem, by designing the signal sampling rate of the narrowband communication system to be greater than a predetermined multiple (greater than or equal to 2) of the narrowband signal bandwidth, it is possible to ensure the distortion-free recovery of the original signal from the acquired broadband frequency data, further improving the accuracy of detecting and identifying broadband network signals through the narrowband communication system.

[0075] Furthermore, in one approach, the predetermined multiple is greater than or equal to 2 and less than or equal to 8, which can further reduce design costs and ensure that the original signal is recovered without distortion based on the collected broadband frequency data.

[0076] It should be noted that, in the embodiments of this application, the narrowband network signal is a signal whose bandwidth is less than or equal to a predetermined first bandwidth, and the broadband network signal is a signal whose bandwidth is greater than or equal to a predetermined second bandwidth, wherein the predetermined second bandwidth is greater than the predetermined first bandwidth.

[0077] For example, in one specific example, the predetermined first bandwidth is 2MHz and the predetermined second bandwidth is 20MHz. It is understood that the predetermined second bandwidth and predetermined first bandwidth can also be other values ​​set according to actual circumstances, and this application does not impose any special limitations on this. A predetermined first bandwidth of 2MHz means that the narrowband analog-to-digital converter (ADC) can receive and process narrowband network signals below 2MHz (i.e., the signal sampling rate of the narrowband ADC is less than or equal to 2MHz). A predetermined second bandwidth of 20MHz means that Wi-Fi 4 to Wi-Fi 7 in the IEEE standard protocols, 4G LTE (Long-Term Evolution) 20MHz signals in the 3GPP mobile communication standard, and 5G NR 100MHz signals will all become broadband network signals.

[0078] Furthermore, in LTE systems, the synchronization sequence typically occupies 72 subcarriers at the center of the carrier, with a bandwidth of 0.93MHz, far less than the maximum operating bandwidth of LTE (20MHz). In NR systems, the synchronization sequence typically occupies 127 subcarriers, with varying bandwidths depending on the subcarrier spacing. At a subcarrier spacing of 15kHz, the bandwidth is 1.905MHz, and at 30kHz, it is 3.81MHz. Within the sub-6GHz spectrum, the bandwidth occupied by the synchronization sequence under different subcarrier spacings is significantly less than the maximum configurable operating bandwidth of 50MHz or 100MHz for NR systems. Observations show that when the initial bandwidth is set to 2MHz, the maximum signal sampling rate of the narrowband analog-to-digital converter is 2MHz. 2MHz is greater than the 0.93MHz bandwidth occupied by the synchronization sequence in LTE systems, and also close to the 1.905MHz bandwidth or nearly half the 3.81MHz bandwidth in NR systems. This allows for the effective use of the narrowband channel of a narrowband communication system to detect synchronization sequences in broadband networks.

[0079] To facilitate better implementation of the communication method provided in the embodiments of this application, the embodiments of this application also provide a communication device based on the above-described communication method. The meanings of the terms used are the same as in the above-described communication method, and specific implementation details can be found in the descriptions within the method embodiments. Figure 8 A block diagram of a communication device according to an embodiment of this application is shown.

[0080] like Figure 8As shown, the communication device 800 is applied to a device including a broadband communication system and a narrowband communication system. The communication device 800 may include: a sleep control module 810, which can be used to control the broadband communication system to enter a sleep state when the broadband communication system meets a predetermined sleep condition; a switching detection module 820, which can be used to switch from the narrowband communication system to the candidate broadband operating frequency point of the broadband communication system to collect signals and obtain broadband frequency point data when the narrowband communication system meets a predetermined detection condition; a signal detection module 830, which can be used to detect whether there is a broadband network signal on the broadband frequency point data; and a wake-up processing module 840, which can be used to wake up the broadband communication system if the broadband network signal is present on the broadband frequency point data.

[0081] In some embodiments of this application, the predetermined detection conditions include: the narrowband communication system being in a narrowband idle time slot and / or the device having broadband service requirements.

[0082] In some embodiments of this application, the predetermined hibernation conditions include: the device has no broadband service demand or the device loses its broadband network connectivity information.

[0083] In some embodiments of this application, when detecting whether a broadband network signal exists on the broadband frequency data, the signal detection module 830 can be used to: perform a sliding correlation operation on the broadband frequency data and a pre-stored synchronization sequence to obtain a sliding correlation peak value; when the sliding correlation peak value is greater than a preset threshold value, it is determined that a broadband network signal exists on the broadband frequency data.

[0084] In some embodiments of this application, when switching from the narrowband communication system to the candidate broadband operating frequency of the broadband communication system for signal acquisition, the switching detection module 820 can be used to: switch from the narrowband communication system to the candidate broadband operating frequency and perform signal acquisition for a predetermined acquisition duration on the candidate broadband operating frequency, wherein the predetermined acquisition duration is greater than or equal to the repetition period of the synchronization sequence of the broadband communication system on the broadband communication physical frame structure.

[0085] In some embodiments of this application, the signal sampling rate of the narrowband communication system is greater than a predetermined multiple of the narrowband signal bandwidth, the predetermined multiple being greater than or equal to 2, and the narrowband signal bandwidth is the signal-occupied bandwidth of the narrowband network signal of the narrowband communication system.

[0086] In some embodiments of this application, the device is a node device in a wireless ad hoc network.

[0087] It should be noted that although several modules or units for the device used to perform actions have been mentioned in the detailed description above, this division is not mandatory. In fact, according to the embodiments of this application, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0088] Furthermore, embodiments of this application also provide a device, such as... Figure 9 As shown, Figure 9 A block diagram of a device according to an embodiment of this application is shown, specifically:

[0089] The device may include components such as a processor 901 with one or more processing cores, a memory 902 with one or more computer-readable storage media, a power supply 903, and an input unit 904. Those skilled in the art will understand that... Figure 9 The device structure shown does not constitute a limitation on the device and may include more or fewer components than illustrated, or combine certain components, or have different component arrangements. Wherein:

[0090] The processor 901 is the control center of the device, connecting various parts of the computer device via various interfaces and lines. It performs various functions and processes data by running or executing software programs and / or modules stored in the memory 902, and by calling data stored in the memory 902. Optionally, the processor 901 may include one or more processing cores; preferably, the processor 901 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user page, and application programs, and the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 901.

[0091] The memory 902 can be used to store software programs and modules. The processor 901 executes various functional applications and data processing by running the software programs and modules stored in the memory 902. The memory 902 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, application programs required for at least one function (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created according to the use of the device, etc. In addition, the memory 902 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory 902 may also include a memory controller to provide the processor 901 with access to the memory 902.

[0092] The device also includes a power supply 903 that supplies power to the various components. Preferably, the power supply 903 can be logically connected to the processor 901 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The power supply 903 may also include one or more DC or AC power supplies, recharging systems, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0093] The device may also include an input unit 904, which can be used to receive input digital or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0094] Although not shown, the device may also include a display unit, etc., which will not be described in detail here. Specifically, in this embodiment, the processor 901 in the device can load the executable files corresponding to the processes of one or more computer programs into the memory 902 according to the following instructions, and the processor 901 runs the computer programs stored in the memory 902, thereby realizing the various functions in the foregoing embodiments of this application.

[0095] For example, processor 901 can perform the following actions: when the broadband communication system meets predetermined sleep conditions, control the broadband communication system to enter a sleep state; when the narrowband communication system meets predetermined detection conditions, switch the narrowband communication system to the candidate broadband operating frequency of the broadband communication system to collect signals and obtain broadband frequency data; detect whether there is a broadband network signal on the broadband frequency data; if the broadband network signal is present on the broadband frequency data, wake up the broadband communication system.

[0096] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by a computer program, or by a computer program controlling related hardware. The computer program can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0097] Therefore, embodiments of this application also provide a storage medium storing a computer program that can be loaded by a processor to execute the steps in any of the methods provided in embodiments of this application.

[0098] The storage medium can be a computer-readable storage medium, which may include: read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.

[0099] Since the computer program stored in the storage medium can execute the steps of any of the methods provided in the embodiments of this application, the beneficial effects that the methods provided in the embodiments of this application can achieve can be realized. For details, please refer to the previous embodiments, which will not be repeated here.

[0100] According to another embodiment of this application, a computer program product or computer program includes computer instructions stored in a computer-readable storage medium. A processor of the device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the device to perform the methods provided in the various optional implementations described in the embodiments of this application.

[0101] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein.

[0102] It should be understood that this application is not limited to the embodiments described above and shown in the accompanying drawings, but various modifications and changes can be made without departing from its scope.

Claims

1. A communication method, characterized in that, The method is applied to devices including broadband communication systems and narrowband communication systems, and the method includes: When the broadband communication system meets the predetermined sleep conditions, the broadband communication system is controlled to enter a sleep state; When the narrowband communication system meets the predetermined detection conditions, the signal is acquired by switching from the narrowband communication system to the candidate broadband operating frequency of the broadband communication system to obtain broadband frequency data; the predetermined detection conditions include the narrowband communication system being in a narrowband idle time slot and / or the device having broadband service requirements; Detect whether a broadband network signal exists on the broadband frequency data; If the broadband network signal is present on the broadband frequency data, then the broadband communication system is woken up; The detection of whether a broadband network signal exists on the broadband frequency data includes: The broadband frequency data is subjected to sliding correlation operation with the pre-stored synchronization sequence to obtain the sliding correlation peak value; when the sliding correlation peak value is greater than the preset threshold value, it is determined that there is a broadband network signal on the broadband frequency data.

2. The method according to claim 1, characterized in that, The predetermined hibernation conditions include: the device has no broadband service demand or the device loses its broadband network connectivity information.

3. The method according to claim 1, characterized in that, The step of switching from the narrowband communication system to the candidate broadband operating frequency of the broadband communication system for signal acquisition includes: The narrowband communication system switches to the candidate wideband operating frequency and performs signal acquisition for a predetermined duration on the candidate wideband operating frequency, wherein the predetermined acquisition duration is greater than or equal to the repetition period of the synchronization sequence of the wideband communication system on the physical frame structure of the wideband communication.

4. The method according to claim 1, characterized in that, The signal sampling rate of the narrowband communication system is greater than a predetermined multiple of the narrowband signal bandwidth, wherein the predetermined multiple is greater than or equal to 2, and the narrowband signal bandwidth is the signal-occupied bandwidth of the narrowband network signal of the narrowband communication system.

5. The method according to any one of claims 1 to 4, characterized in that, The device is a node device in a wireless ad hoc network.

6. A communication device, characterized in that, The apparatus is applied to devices including broadband communication systems and narrowband communication systems, and the apparatus includes: A hibernation control module is used to control the broadband communication system to enter a hibernation state when the broadband communication system meets predetermined hibernation conditions. The switching detection module is used to: when the narrowband communication system meets predetermined detection conditions, switch from the narrowband communication system to the candidate broadband operating frequency of the broadband communication system to collect signals and obtain broadband frequency data; the predetermined detection conditions include the narrowband communication system being in a narrowband idle time slot and / or the device having broadband service requirements; A signal detection module is used to: detect whether a broadband network signal exists on the broadband frequency data; the detection of whether a broadband network signal exists on the broadband frequency data includes: performing a sliding correlation operation on the broadband frequency data and a pre-stored synchronization sequence to obtain a sliding correlation peak value; when the sliding correlation peak value is greater than a preset threshold value, it is determined that a broadband network signal exists on the broadband frequency data; The wake-up processing module is used to wake up the broadband communication system if the broadband network signal exists on the broadband frequency data.

7. A storage medium, characterized in that, It stores a computer program that, when executed by the device's processor, causes the device to perform the method described in any one of claims 1 to 5.

8. A device, characterized in that, include: Memory, which stores computer programs; A processor reads a computer program stored in memory to perform the method described in any one of claims 1 to 5.

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