Communication method and apparatus

Abstract

Disclosed in the present application are a communication method and an apparatus, which can increase the communication distance of UWB signals. The present application supports IEEE protocols (for example, IEEE802.11be / Wi-Fi7 / EHT protocol, IEEE802.11bn / UHR / Wi-Fi8 protocol, IEEE IntegratedmmWave / Integrated MilliMeter Wave / IMMW protocol, IEEE802.15 / UWB protocol, and IEEE802.11bf / sensing protocol), and sparklink / nearlink protocol. The method comprises: generating first information; and continuously sending the first information in at least one sub-time period within a target time period, the PSD of a Wi-Fi signal in the first sub-time period being greater than a first value, and the first value being the PSD of the Wi-Fi signal in the first sub-time period when the first information is continuously sent in the target time period.

Description

A communication method and apparatus

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202410816225.8, filed on June 24, 2024, entitled "A Communication Method and Apparatus", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of communication technology, and in particular to a communication method and apparatus. Background Technology

[0004] Ultra-wideband (UWB) technology can achieve high-precision positioning or data transmission by transmitting short pulses on the order of nanoseconds. Its operating frequency range is 7163-8812MHz, and it can be widely used in short-range high-speed wireless data communication, positioning, ranging, and sensing. According to relevant regulations for UWB technology, UWB band signals must occupy at least 500MHz of channel bandwidth, and the power spectral density (PSD) of UWB band signals must not exceed -41dBm / MHz.

[0005] The power spectral density of UWB band signals is limited, which restricts the coverage of UWB band signals. Summary of the Invention

[0006] This application provides a communication method and apparatus that can increase the coverage of UWB band signals while meeting the relevant regulatory requirements of UWB technology.

[0007] In a first aspect, a communication method is provided, which can be applied to a transmitting device or to a chip or module in the transmitting device. Taking the method applied to a transmitting device as an example: generating first information; continuously transmitting the first information within at least one sub-time period in a target time period; wherein the wireless fidelity (Wi-Fi) signal carrying the first information is in the ultra-wideband (UWB) frequency band; the sum of the time lengths of at least one sub-time period is less than the time length of the target time period; the power spectral density (PSD) of the Wi-Fi signal carrying the first information in the first sub-time period of at least one sub-time period is greater than a first value, the first value being the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period when continuously transmitting the first information in the target time period.

[0008] In this embodiment, the transmitting device compresses the continuous transmission time of the Wi-Fi signal in the UWB band, that is, it only utilizes at least one sub-time period within the target time period (e.g., 1ms) to transmit the Wi-Fi signal, and increases the power spectral density of the Wi-Fi signal in the first sub-time period. On the one hand, since the power spectral density of the Wi-Fi signal in the first sub-time period is increased, the transmission distance of the Wi-Fi signal in the first sub-time period can be increased; on the other hand, since the Wi-Fi signal is transmitted only for a portion of the target time period, short-term, sudden interference can be effectively avoided, while the Wi-Fi signal carrying the first information still meets regulatory requirements (e.g., the power spectral density of the Wi-Fi signal carrying the first information in the target time period meets regulatory requirements). Therefore, this embodiment can increase the coverage range of the UWB band signal while meeting the relevant regulatory requirements of UWB technology.

[0009] In one possible design, the UWB band ranges from 7163MHz to 8812MHz.

[0010] In one possible design, the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is greater than a second value, where the second value is the power spectral density of the Wi-Fi signal carrying the first information in the target time period.

[0011] In other words, by compressing the continuous transmission time of the Wi-Fi signal in the UWB band, the power spectral density of the Wi-Fi signal in the target time period is lower than that in the first sub-time period, thus ensuring that the Wi-Fi signal meets regulatory requirements.

[0012] In one possible design, the measurement time of the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is called the first sub-time period, and the measurement time of the power spectral density of the Wi-Fi signal carrying the first information in the target time period is called the target time period.

[0013] For example, the power spectral density of a Wi-Fi signal in the first sub-time period is the average power spectral density of the Wi-Fi signal in that first sub-time period, and the power spectral density of a Wi-Fi signal in the target time period is the average power spectral density of the Wi-Fi signal in that target time period.

[0014] In one possible design, at least one sub-time period is divided into multiple sub-time periods, and at least two of the multiple sub-time periods have different durations.

[0015] In this way, the timing of sending the first message within the target time period is more flexible, which can better avoid short-term and sudden interference.

[0016] In one possible design, the power spectral density of the Wi-Fi signal carrying the first information is determined based on the first sub-time period.

[0017] For example, the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is related to one or more of the following: the duration of the first sub-time period; the priority of the first sub-time period; and the transmission distance requirement corresponding to the first sub-time period.

[0018] Of course, the above are just examples, and there are actually more than these.

[0019] In one possible design, the target time period consists of N sub-time periods of equal length, and at least one sub-time period is M sub-time periods out of the N sub-time periods of equal length, where M is a positive integer and N is a positive integer greater than M.

[0020] With the above design, the method by which the sending device sends the first information within the target time period is simple and easy to implement.

[0021] In one possible design, the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period of M sub-time periods is N / M times the first value.

[0022] In this way, the power spectral density of the Wi-Fi signal in the target time period can be made consistent with the power spectral density of the Wi-Fi signal in the target time period when the transmitting device continuously transmits the first information via Wi-Fi signal in at least one sub-time period within the target time period, thus ensuring that the power spectral density of the Wi-Fi signal remains unchanged in the target time period.

[0023] In one possible design, the length of at least one sub-time period and the length of the target time period satisfy the following relationship:

[0024] Where N represents the total number of sub-time periods in at least one sub-time period; i represents the index of the sub-time period in at least one sub-time period, where i is a positive integer; T i K represents the duration of the i-th sub-time period within at least one sub-time period. i T0 represents the multiple of the power spectral density of the Wi-Fi signal carrying the first information in the i-th sub-time period relative to the first value; T0 represents the length of the target time period.

[0025] Through the above design, it can be ensured that when the transmitting device continuously transmits the first information via Wi-Fi signal in at least one sub-time period within the target time period, the power spectral density of the Wi-Fi signal in the target time period will not exceed the power spectral density of the Wi-Fi signal in the target time period when the transmitting device continuously transmits the first information via Wi-Fi signal. In other words, it ensures that the power spectral density of the Wi-Fi signal carrying the first information will not increase in the target time period, thus better ensuring that the Wi-Fi signal carrying the first information can meet regulatory requirements.

[0026] In one possible design, a first instruction message can also be sent, which is used to indicate the transmission method of the Wi-Fi signal carrying the first information.

[0027] This allows the receiving device to determine the transmission method of the Wi-Fi signal and receive the Wi-Fi signal accordingly, ensuring communication reliability while saving power consumption of the receiving device.

[0028] In one possible design, a second instruction message can also be sent, which is used to determine the position of at least one sub-time period within the target time period.

[0029] For example, the second indication information is used to indicate the start position of each sub-time period within at least one sub-time period. Optionally, the second indication information may also indicate the duration of each sub-time period within at least one sub-time period.

[0030] Thus, the receiving device can determine the location of at least one sub-time period within the target time period based on the second indication information, thereby receiving the Wi-Fi signal at the corresponding location.

[0031] Secondly, a communication method is provided, which can be applied to a receiving device or to a chip or module in the receiving device. Taking the method applied to a receiving device as an example: continuously receiving first information within at least one sub-time period in a target time period; processing the first information; wherein, the true Wi-Fi signal carrying the first information is in the UWB band; the sum of the time lengths of at least one sub-time period is less than the time length of the target time period; the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period of the at least one sub-time period is greater than a first value, the first value being the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period when continuously transmitting the first information in the target time period.

[0032] In one possible design, the UWB band ranges from 7163MHz to 8812MHz.

[0033] In one possible design, the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is greater than a second value, where the second value is the power spectral density of the Wi-Fi signal carrying the first information in the target time period.

[0034] In one possible design, the measurement time of the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is called the first sub-time period, and the measurement time of the power spectral density of the Wi-Fi signal carrying the first information in the target time period is called the target time period.

[0035] In one possible design, at least one sub-time period is divided into multiple sub-time periods, and at least two of the multiple sub-time periods have different durations.

[0036] In one possible design, the power spectral density of the Wi-Fi signal carrying the first information is determined based on the first sub-time period.

[0037] In one possible design, the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is related to one or more of the following: the duration of the first sub-time period; the priority of the first sub-time period; and the transmission distance requirement corresponding to the first sub-time period.

[0038] In one possible design, the target time period consists of N sub-time periods of equal length, and at least one sub-time period is M sub-time periods out of the N sub-time periods of equal length, where M is a positive integer and N is a positive integer greater than M.

[0039] In one possible design, the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is N / M times the first value.

[0040] In one possible design, the length of at least one sub-time period and the length of the target time period satisfy the following relationship:

[0041] Where N represents the total number of sub-time periods in at least one sub-time period; i represents the index of the sub-time period in at least one sub-time period, where i is a positive integer; T i K represents the duration of the i-th sub-time period within at least one sub-time period. i T0 represents the multiple of the power spectral density of the Wi-Fi signal carrying the first information in the i-th sub-time period relative to the first value; T0 represents the length of the target time period.

[0042] In one possible design, first indication information may also be received, which indicates the transmission method of the Wi-Fi signal carrying the first information. Correspondingly, continuously receiving the first information within at least one sub-time period of the target time period includes: continuously receiving the first information within at least one sub-time period of the target time period according to the transmission method.

[0043] In one possible design, a second instruction information can also be received; the position of at least one sub-time period within the target time period can be determined based on the second instruction information.

[0044] In one possible design, the second indication information is used to indicate the starting position of each sub-time period within at least one sub-time period.

[0045] In one possible design, the second indication information is also used to indicate the duration of each sub-time period within at least one sub-time period.

[0046] Thirdly, a communication device is provided, comprising a module, unit, or technical means for performing the methods described in the first aspect or any possible design of the first aspect.

[0047] For example, the device includes:

[0048] The processing module is used to generate the first piece of information;

[0049] A transceiver module is configured to continuously transmit first information within at least one sub-time period of a target time period; wherein the Wi-Fi signal carrying the first information is in the ultra-wideband (UWB) frequency band; the sum of the durations of at least one sub-time period is less than the duration of the target time period; the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period of the at least one sub-time period is greater than a first value, the first value being the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period when continuously transmitting the first information within the target time period.

[0050] In one possible design, the UWB band ranges from 7163MHz to 8812MHz.

[0051] In one possible design, the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is greater than a second value, where the second value is the power spectral density of the Wi-Fi signal carrying the first information in the target time period.

[0052] In one possible design, the measurement time of the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is called the first sub-time period, and the measurement time of the power spectral density of the Wi-Fi signal carrying the first information in the target time period is called the target time period.

[0053] In one possible design, at least one sub-time period is divided into multiple sub-time periods, and at least two of the multiple sub-time periods have different durations.

[0054] In one possible design, the power spectral density of the Wi-Fi signal carrying the first information is determined based on the first sub-time period.

[0055] In one possible design, the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is related to one or more of the following: the duration of the first sub-time period; the priority of the first sub-time period; and the transmission distance requirement corresponding to the first sub-time period.

[0056] In one possible design, the target time period consists of N sub-time periods of equal length, and at least one sub-time period is M sub-time periods out of the N sub-time periods of equal length, where M is a positive integer and N is a positive integer greater than M.

[0057] In one possible design, the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is N / M times the first value.

[0058] In one possible design, the length of at least one sub-time period and the length of the target time period satisfy the following relationship:

[0059] Where N represents the total number of sub-time periods in at least one sub-time period; i represents the index of the sub-time period in at least one sub-time period, where i is a positive integer; T i K represents the duration of the i-th sub-time period within at least one sub-time period. i T0 represents the multiple of the power spectral density of the Wi-Fi signal carrying the first information in the i-th sub-time period relative to the first value; T0 represents the length of the target time period.

[0060] In one possible design, the transceiver module is also used to: send first indication information, which is used to indicate the transmission method of the Wi-Fi signal carrying the first information.

[0061] In one possible design, the transceiver module is also used to: send second indication information, which is used to determine the position of at least one sub-time period within the target time period.

[0062] In one possible design, the second indication information is used to indicate the starting position of each sub-time period within at least one sub-time period.

[0063] In one possible design, the second indication information is also used to indicate the duration of each sub-time period within at least one sub-time period.

[0064] Fourthly, a communication device is provided, comprising a module, unit, or technical means for performing the methods described in the second aspect or any possible design of the second aspect.

[0065] For example, the device includes:

[0066] The transceiver module is used to continuously receive the first information within at least one sub-time period of the target time period;

[0067] A processing module is used to process first information; wherein the true Wi-Fi signal carrying the first information is in the UWB band; the sum of the time lengths of at least one sub-time period is less than the time length of the target time period; the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period of at least one sub-time period is greater than a first value, the first value being the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period when the first information is continuously transmitted within the target time period.

[0068] In one possible design, the UWB band ranges from 7163MHz to 8812MHz.

[0069] In one possible design, the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is greater than a second value, where the second value is the power spectral density of the Wi-Fi signal carrying the first information in the target time period.

[0070] In one possible design, the measurement time of the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is called the first sub-time period, and the measurement time of the power spectral density of the Wi-Fi signal carrying the first information in the target time period is called the target time period.

[0071] In one possible design, at least one sub-time period is divided into multiple sub-time periods, and at least two of the multiple sub-time periods have different durations.

[0072] In one possible design, the power spectral density of the Wi-Fi signal carrying the first information is determined based on the first sub-time period.

[0073] In one possible design, the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is related to one or more of the following: the duration of the first sub-time period; the priority of the first sub-time period; and the transmission distance requirement corresponding to the first sub-time period.

[0074] In one possible design, the target time period consists of N sub-time periods of equal length, and at least one sub-time period is M sub-time periods out of the N sub-time periods of equal length, where M is a positive integer and N is a positive integer greater than M.

[0075] In one possible design, the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is N / M times the first value.

[0076] In one possible design, the length of at least one sub-time period and the length of the target time period satisfy the following relationship:

[0077] Where N represents the total number of sub-time periods in at least one sub-time period; i represents the index of the sub-time period in at least one sub-time period, where i is a positive integer; T i K represents the duration of the i-th sub-time period within at least one sub-time period. i T0 represents the multiple of the power spectral density of the Wi-Fi signal carrying the first information in the i-th sub-time period relative to the first value; T0 represents the length of the target time period.

[0078] In one possible design, the transceiver module is further configured to: receive first indication information, the first indication information being used to indicate the transmission method of the Wi-Fi signal carrying the first information. Correspondingly, the processing module is configured to: continuously receive the first information within at least one sub-time period of the target time period, according to the transmission method.

[0079] In one possible design, the transceiver module is further configured to: receive second indication information; correspondingly, the processing module is further configured to: determine the position of at least one sub-time period within the target time period based on the second indication information.

[0080] In one possible design, the second indication information is used to indicate the starting position of each sub-time period within at least one sub-time period.

[0081] In one possible design, the second indication information is also used to indicate the duration of each sub-time period within at least one sub-time period.

[0082] Fifthly, a communication device is provided, comprising: at least one processor and an interface circuit;

[0083] The interface circuit is used to receive signals from other devices outside the device and send or receive signals to the processor or send signals from the processor to other devices outside the device. The processor is used through logic circuits or executing code instructions to implement the method as described in the first aspect or any possible design of the first aspect, or to implement the method as described in the second aspect or any possible design of the second aspect.

[0084] In a sixth aspect, a computer-readable storage medium is provided, wherein a computer program or instructions are stored therein, which, when executed by a communication device, implement the method as described in the first aspect or any possible design of the first aspect, or implement the method as described in the second aspect or any possible design of the second aspect.

[0085] In a seventh aspect, a computer program product is provided, the computer program product storing instructions that, when run on a computer, cause the computer to perform the method as described in the first aspect or any possible design of the first aspect, or cause the computer to perform the method as described in the second aspect or any possible design of the second aspect.

[0086] Eighthly, a communication system is provided, comprising:

[0087] A transmitting device for performing the method as described in the first aspect or any possible design of the first aspect;

[0088] A receiving device for performing the method described in the second aspect or any possible design of the second aspect.

[0089] The technical effects of the second to eighth aspects mentioned above are described in the first aspect and will not be repeated here. Attached Figure Description

[0090] Figure 1 is a schematic diagram of a possible application scenario of an embodiment of this application;

[0091] Figure 2 is a schematic diagram of the transmit power limits for the 5.925GHz-10.6GHz frequency band;

[0092] Figure 3 is a flowchart of a communication method provided in an embodiment of this application;

[0093] Figures 4A to 4F are examples of several possible specific communication scenarios provided in the embodiments of this application;

[0094] Figure 5 is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0095] Figure 6 is a schematic diagram of another communication device provided in an embodiment of this application. Detailed Implementation

[0096] The technical solutions provided in this application can be applied to the Institute of Electrical and Electronics Engineers (IEEE) 802.15 series protocols, such as IEEE 802.11be / Wireless Fidelity (Wi-Fi) 7 / Extremely High Throughput (EHT) protocol, IEEE 802.11bn / Ultra High Reliability (UHR) / Wi-Fi 8 protocol, IEEE Integrated mmWave / IMMW protocol, IEEE 802.15 / UWB protocol, or IEEE 802.11bf / sensing protocol; this application can also support Spark Link / NearLink standard protocols, etc., which are not listed here.

[0097] The communication method provided in this application can be applied to various communication systems, such as Internet of Things (IoT) systems, Vehicle-to-X (V2X) systems, and Narrow Band Internet of Things (NB-IoT) systems. For example, the communication method provided in this application can be applied to devices in V2X systems, or to IoT nodes and sensors in IoT systems, or to smart cameras, smart remote controls, smart water and electricity meters in smart homes, and sensors in smart cities. The communication method provided in this application can also be applied to LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, Worldwide Interoperability for Microwave Access (WiMAX) systems, Long Term Evolution (LTE) systems, 5th Generation (5G) systems, and future communication systems. Furthermore, the communication method provided in this application embodiment can also be applied to wireless local area network systems that support IEEE 802.11ax (mobile hotspot (Wi-Fi) 6) / 802.11be (Wi-Fi 7) / 802.11bn ((Wi-Fi 68) / Wi-Fi (artificial intelligence, AI) / millimeter wave / UWB or sensing.

[0098] For example, Figure 1 illustrates a possible application scenario of an embodiment of this application. Figure 1 includes a transmitting device and a receiving device, both of which have wireless communication capabilities (e.g., the device incorporates a UWB chip or a Wi-Fi chip). Of course, the device may have other functions besides wireless communication, and this embodiment does not impose any limitations. The transmitting device can send wireless signals, such as Wi-Fi signals, to the receiving device. These Wi-Fi signals can be used for ranging, or for other communication functions, and this embodiment does not impose any limitations in this regard.

[0099] It is understandable that the roles of the transmitting and receiving devices mentioned above are distinguished based on the current signal transmission direction. In practical applications, the receiving device can also send wireless signals to the transmitting device; that is, the receiving device in Figure 1 can also act as a transmitting device, and the transmitting device can also act as a receiving device.

[0100] In specific implementations, the sending device can be a network device and the receiving device can be a terminal device; or, the sending device can be a terminal device and the receiving device can be a network device; or, both the sending device and the receiving device can be network devices; or, both the sending device and the receiving device can be terminal devices.

[0101] The network equipment may include radio access network (RAN) equipment and core network (CN) equipment. Optionally, terminal devices can connect to RAN equipment wirelessly, and RAN equipment can connect to CN equipment wirelessly or via wired connection. CN equipment and RAN equipment can be independent physical devices, or the functions of CN equipment and RAN equipment can be integrated into the same physical device, or a single physical device can integrate some core network equipment functions and some RAN equipment functions. Terminal devices and RAN devices can be interconnected via wired or wireless connections.

[0102] Optionally, RAN devices, sometimes also referred to as access network devices, RAN entities, RAN nodes, or access nodes, constitute part of the communication system and are used to help terminal devices achieve wireless access. Multiple RAN devices in the communication system can be nodes of the same type or different types. The RAN devices involved in the embodiments of this application can be base stations, evolved NodeBs (eNodeBs), transmission reception points (TRPs), transmission points (TPs), next-generation NodeBs (gNBs) in 5th-generation (5G) mobile communication systems, next-generation base stations in future mobile communication systems, base stations in future mobile communication systems, or access nodes in WiFi systems or vehicle-to-everything (V2X) systems, etc.

[0103] Optionally, a terminal device is a user-side device with signal transmission and reception capabilities, providing users with services such as video, voice, and data connectivity. Additionally, terminal devices can also be referred to as terminals, user equipment (UE), access terminal equipment, vehicle-mounted terminals, industrial control terminals, UE units, UE stations, mobile stations, mobile stations (MS), mobile terminals (MT), remote stations, remote terminal equipment, mobile devices, UE terminal equipment, terminal equipment, wireless communication equipment, UE agents, or UE devices, etc.

[0104] For example, terminal devices can be mobile phones, tablets, subscriber units, cellular phones, smartphones, wireless data cards, personal digital assistant (PDA) computers, wireless modems, handsets, laptop computers, computers with wireless transceiver capabilities, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminals in industrial control, vehicle-mounted terminal devices, wireless terminals in self-driving vehicles, wireless terminals in remote medical care, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, wearable terminal devices, vehicles, drones, helicopters, airplanes, factory machines / equipment, machine-type communication (MTC) terminals, ships, or robots, etc. The embodiments of this application do not limit the specific technology or form of the terminal device.

[0105] Optionally, the terminal equipment and base station can be deployed on land, including indoors or outdoors, handheld, wearable, or vehicle-mounted, or on water (such as ships), or in the air (such as airplanes, balloons, or satellites). In the embodiments of this application, the terminal equipment and base station can be fixed in location or mobile, and this application does not limit the location.

[0106] The following describes the technical features involved in this application.

[0107] Ultra-wide wireless (UWB) technology is a wireless communication technology based on the 7163MHz-8812MHz frequency band. It can be applied to short-range high-speed wireless data communication, positioning, ranging, and sensing. The 7163MHz-8812MHz frequency band can also be referred to as the 8GHz band or the UWB band. Devices operating in the UWB band are called UWB devices.

[0108] According to national regulations, when the equipment operates in the 7163-8812MHz frequency band, the bandwidth (-10dB bandwidth) of the transmitted signal should be no less than 500MHz, and the equivalent isotropic radiated power spectral density (PSD) should not exceed -41dBm / MHz. The out-of-band leakage of the signal in the UWB frequency band should meet the restrictions given in Table 1.

[0109] Table 1

[0110] Figure 2 shows a schematic diagram of the transmit power limits for the 5.925GHz-10.6GHz frequency band.

[0111] Therefore, when a signal operates in the UWB band, in order to meet the power spectral density limits required by regulations, the signal is usually transmitted at low power, which greatly reduces the transmission distance of the signal.

[0112] To address the aforementioned technical problems, this application provides a technical solution based on its embodiments. This application's embodiments compress the continuous transmission time of the wireless signal (hereinafter referred to as the target time period) by utilizing only a portion of the target time period (e.g., 1ms) to transmit the wireless signal, and by increasing the transmission power (or PSD) of the wireless signal during that portion of time. On one hand, the increased transmission power of the wireless signal allows for a longer transmission distance; on the other hand, the PSD of the wireless signal still meets regulatory requirements.

[0113] The technical solutions provided by the embodiments of this application are further described in detail below with reference to the accompanying drawings. In the various embodiments of this application, all optional steps are indicated by dashed lines in the corresponding drawings. In the following description, the methods provided by the various embodiments of this application are applied to the network architecture shown in FIG1 as an example. For example, the transmitting device described in the various embodiments of this application is, for example, the transmitting device in the network architecture shown in FIG1, and the receiving device described in the various embodiments of this application is, for example, the receiving device in the network architecture shown in FIG1.

[0114] In this application embodiment, the number of nouns, unless otherwise specified, refers to "singular nouns or plural nouns," that is, "one or more." "At least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. For example, A / B means: A or B. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c means: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, and c can be single or multiple.

[0115] In this application, the ordinal numbers such as "first" and "second" mentioned are used to distinguish multiple objects, and are not used to limit the size, content, order, timing, priority, or importance of the multiple objects. For example, the first cycle and the second cycle can be the same cycle or different cycles, and such names do not indicate that the two cycles are different in duration, application scenario, priority, or importance.

[0116] Please refer to Figure 3, which is a flowchart of a communication method provided in an embodiment of this application, including steps S301 to S302.

[0117] S301, The transmitting device generates the first information;

[0118] Understandably, the first piece of information is the information that the sending device needs to send to the receiving device.

[0119] S302. The transmitting device continuously transmits the first information during at least one sub-time period within the target time period;

[0120] In this case, the sum of the lengths of at least one sub-time period is less than the length of the target time period. In other words, at least one sub-time period is a portion of the target time period, and the transmitting device only performs the operation of continuously transmitting the first information during a portion of the target time period.

[0121] The transmitting device continuously transmits first information during at least one sub-time period within a target time period. Specifically, this may include: the transmitting device continuously transmitting the first information via a wireless signal during at least one sub-time period within the target time period, i.e., the transmitting device transmits the first information carrying the wireless signal. Wherein, the PSD of the wireless signal carrying the first information is greater than a first value during the first sub-time period within the at least one sub-time period. The first value is the PSD of the wireless signal carrying the first information during the first sub-time period when continuously transmitting the first information within the target time period.

[0122] Specifically, when the method provided in the embodiments of this application is used to send the first information (i.e., continuously send the first information in at least one sub-time period within the target time period), the PSD of the wireless signal carrying the first information in the first sub-time period within the target time period is greater than a first value, and the first value is the PSD of the wireless signal carrying the first information in the first sub-time period when the first information is continuously sent within the target time period.

[0123] It is understood that PSD is a measure describing the distribution of signal power in the frequency domain, representing the power of the signal per unit frequency. This application's embodiments control the duration of the wireless signal in the time domain. The position of the wireless signal in the time domain does not affect the correspondence between PSD and power. For example, when the bandwidth of a signal is equal to the unit bandwidth of PSD, the power value of that signal is equal to the PSD value. Therefore, the descriptions related to PSD in this document can also be replaced with power.

[0124] For example, referring to Figure 4A, let the target time period be T0. The upper part of Figure 4A illustrates a scenario where the first information is continuously transmitted within the target time period T0. In this scenario, the PSD (or power) of the wireless signal carrying the first information is P0 within time T0. The lower part of Figure 4A illustrates a scenario where the first information is continuously transmitted only within a portion of the target time period T0, such as within a sub-time period T1. In this scenario, the PSD (or power) of the wireless signal carrying the first information is P1 within time T1, and the PSD (or power) of the wireless signal carrying the first information is 0 in other time periods besides T1. As can be seen from Figure 4A, within the same sub-time period T1, the PSD (or power) when the wireless signal is continuously transmitted only within T1 is greater than the PSD (or power) when the wireless signal is continuously transmitted within T0. Therefore, the embodiments of this application compress the duration of wireless signal transmission while also increasing the PSD (or power) of the wireless signal during the compressed duration. It should be understood that the sub-time period in Figure 4A is an example, and is not limited to one.

[0125] Furthermore, when the transmitting device continuously transmits the first information via wireless signal within at least one sub-time period within the target time period, the PSD of the wireless signal carrying the first information in the first sub-time period is greater than a second value; the second value is the PSD of the wireless signal carrying the first information in the target time period (or the average PSD of the wireless signal carrying the first information in the target time period) when the transmitting device continuously transmits the first information via wireless signal within at least one sub-time period within the target time period. The measurement time of the PSD of the wireless signal carrying the first information in the first sub-time period is the first sub-time period, and the measurement time of the PSD of the wireless signal carrying the first information in the target time period is the target time period.

[0126] Taking Figure 4A as an example, when the transmitting device continuously transmits the first information via wireless signal only during T1 within the target time period T0, the PSD of the wireless signal carrying the first information in T1 is P1 / T1, and the PSD (i.e., the second value) of the wireless signal carrying the first information in the target time period T0 is P1 / T0. Obviously, P1 / T1 > P1 / T0.

[0127] It is understandable that, compared to continuously transmitting the first information within a target time period, when transmitting the first information using the method provided in this application embodiment, the PSD of the wireless signal carrying the first information within the target time period may not be increased, thus easily meeting the regulatory requirements for PSD. For example, the first value equals the second value, meaning that the PSD of the wireless signal carrying the first information during the entire target time period when continuously transmitting the first information within the target time period can be the same as the PSD of the wireless signal carrying the first information during the entire target time period when continuously transmitting the first information within at least one sub-time period within the target time period. Of course, this is only an example; in practical applications, the first value can also be less than the second value.

[0128] It is understandable that when the sending device continuously sends the first information in multiple sub-time periods within the target time period, the lengths of these multiple sub-time periods can all be the same, or the lengths of these multiple sub-time periods can all be different, or some of these sub-time periods can have the same length and some of them can have different lengths, without any restrictions.

[0129] The first sub-time period can be one or more of the plurality of sub-time periods. In other words, among the plurality of sub-time periods, only some sub-time periods may correspond to a PSD greater than the first value (the PSD of other sub-time periods may be less than or equal to the first value), that is, the PSD (or power) of the wireless signal is increased only in some sub-time periods, while the PSD (or power) of other sub-time periods may remain unchanged or decrease; or all sub-time periods may correspond to a PSD greater than the first value, that is, the PSD (or power) of the wireless signal is increased in each sub-time period in which the wireless signal is transmitted. The embodiments of this application do not impose any restrictions.

[0130] In one possible implementation, the target time period can be 1ms, and correspondingly, the total duration of at least one time period must be less than 1ms. Of course, 1ms is just an example here, and it is not limited to this in practice.

[0131] Optionally, in step S303, the receiving device continuously receives the first information during at least one sub-time period within the target time period.

[0132] Optionally, S304, the receiving device processes the first information.

[0133] For example, when the first information is used for communication, the receiving device can obtain the data content from the first information.

[0134] For example, when the first information is used for ranging, the receiving device can obtain ranging-related information (such as ranging-related configuration information, ranging-related capability information, etc.) from the first information. In some embodiments, the first information may also be empty, and ranging may be performed only using wireless signals. For example, the receiving device measures the reception time of the wireless signal, which is used for distance measurement between the transmitting and receiving devices.

[0135] This application embodiment compresses the continuous transmission time of the wireless signal carrying the first information within the target time period, that is, it only utilizes at least one sub-time period within the target time period (e.g., 1 ms) to transmit the wireless signal, and increases the PSD (or power) of the wireless signal in the first sub-time period. On the one hand, since the PSD (or power) of the wireless signal in the first sub-time period is increased, the transmission distance of the wireless signal in the first sub-time period can be increased; on the other hand, since the wireless signal is transmitted only for a portion of the target time period, short-term, sudden interference can be effectively avoided, while ensuring that the PSD of the wireless signal carrying the first information in the target time period still meets regulatory requirements (e.g., the average PSD of the wireless signal carrying the first information in the entire target time period does not exceed -41 dBm / MHz per 1 ms). Therefore, this application embodiment can improve the coverage distance of the wireless signal while meeting regulatory requirements.

[0136] It is understood that, since the embodiments of this application increase the PSD (or power) of the wireless signal in the first sub-time period, the order of the coding and modulation strategy (MCS) of the wireless signal transmitted in the first sub-time period can be increased accordingly. Therefore, each modulation symbol (such as an orthogonal frequency division multiplexing (OFDM) symbol) in the wireless signal transmitted in the first sub-time period can carry more bits of information, so it is still possible to complete the transmission of all the data of the first information within a target time period. Of course, if it is actually impossible to complete the transmission of all the data of the first information within a target time period, then in this case, the remaining data can be transmitted through more target time periods. The transmission method in other target time periods is similar to the transmission method described above and will not be repeated.

[0137] In one possible design, the frequency band of the wireless signal carrying the first information can be a frequency band with limited transmission power or transmission PSD, such as, but not limited to, the UWB band, i.e., 7163MHz to 8812MHz.

[0138] Furthermore, the transmitting device has the capability to operate in the UWB frequency band; for example, the transmitting device is a Wi-Fi device capable of operating in the UWB frequency band. The transmitting device continuously transmits first information via a Wi-Fi signal during at least one sub-time period within the target time period, and the Wi-Fi signal carrying the first information operates in the UWB frequency band. Correspondingly, the PSD of the Wi-Fi signal carrying the first information is greater than a first value during the first sub-time period within the at least one sub-time period. The first value is the PSD of the Wi-Fi signal carrying the first information during the first sub-time period when continuously transmitting the first information within the target time period.

[0139] Using the above method, when the transmitting device operates in the UWB band, the wireless signal it transmits can fully or partially comply with Wi-Fi protocol requirements (such as 11b / g / n / ac / ax / be). That is, the transmitted wireless signal must include at least one Wi-Fi compliant signal, thus enabling the Wi-Fi device to transmit Wi-Fi signals in the UWB band. A Wi-Fi receiver operating in the UWB band can then normally receive and demodulate the Wi-Fi signal transmitted by the transmitting device.

[0140] In one possible design, when at least one sub-time period is multiple sub-time periods (i.e., the transmitting device continuously transmits the first information within multiple sub-time periods of the target time period), the duration of at least two of the multiple sub-time periods can be different.

[0141] In a specific implementation, the PSD (or power) of the wireless signal carrying the first information in the first sub-time period can be determined based on the first sub-time period. For example, the PSD (or power) of the wireless signal carrying the first information in the first sub-time period is related to one or more of the following:

[0142] 1) The duration of the first sub-time period;

[0143] For example, the PSD (or power) of a wireless signal in the first sub-time period is inversely proportional to the length of that first sub-time period.

[0144] For example, as shown in Figure 4B, the transmitting device continuously transmits first information in sub-time periods T1 and T2 within the target time period T0, wherein the length of T1 is less than the length of sub-time period T2, the PSD of the wireless signal carrying the first information in sub-time period T1 is P1, and the PSD of the wireless signal carrying the first information in sub-time period T2 is P2, where P1>P2.

[0145] 2) Priority of the first sub-time period;

[0146] The priority of sub-time periods can be set according to requirements. For example, the priority of the first sub-time period can be related to the type of data transmitted in the first sub-time period. This application does not impose any restrictions.

[0147] In practice, the PSD (or power) of the first sub-time period can be inversely proportional to or directly proportional to the priority of the first sub-time period, without any restriction.

[0148] For example, as shown in Figure 4C, the transmitting device continuously transmits first information in sub-time periods T1, T2, and T3 within the target time period T0. The priority K1 of T1 is lower than the priority K2 of sub-time period T2, and the priority K2 of T2 is lower than the priority K3 of sub-time period T3. The PSD of the wireless signal carrying the first information is P1 in sub-time period T1, P2 in sub-time period T2, and P3 in sub-time period T3. <P2<P3。

[0149] 3) Transmission distance requirements for the first sub-time period.

[0150] For example, the higher the transmission distance requirement (i.e., the farther the transmission distance) for the first sub-time period, the higher the PSD for the first sub-time period.

[0151] For example, as shown in Figure 4D, the transmitting device continuously transmits first information in sub-time periods T1, T2, and T3 within the target time period T0. The required transmission distance for T1 is 0–10 m, for T2 it is 10–50 m, and for T3 it is 50–100 m. The PSD of the wireless signal carrying the first information is P1 in sub-time period T1, P2 in sub-time period T2, and P3 in sub-time period T3. <P2<P3。

[0152] It is understood that the above three methods can be implemented individually or in combination, without restriction. Furthermore, the above three methods are merely examples, and the actual implementation is not limited to these.

[0153] With the above design, the sending device can send the first information at a more flexible time within the target time period, which can better avoid short-term and sudden interference.

[0154] In one possible design, the target time period consists of multiple sub-time periods of equal length. Taking N sub-time periods of equal length as an example, the sending device sends at least one sub-time period of the first information, which is M sub-time periods among the N sub-time periods of equal length, where M is a positive integer and N is a positive integer greater than M.

[0155] For example, taking N=10, the transmitting device continuously transmits the first information during some of the sub-time periods within these 10 sub-time periods. For instance, in Figure 4E, the transmitting device continuously transmits the first information during the first sub-time period of the target time period T0.

[0156] Optionally, the PSD of the wireless signal carrying the first information in the first sub-time period is N / M times the first value. For example, in Figure 4E, P1 = 10P0. In this way, the PSD of the wireless signal in the target time period can be made consistent with the PSD of the wireless signal in the target time period when the transmitting device continuously transmits the first information via wireless signal in at least one sub-time period within the target time period, that is, the PSD of the wireless signal in the target time period is guaranteed to remain unchanged.

[0157] Optionally, if the transmitting device cannot transmit all the data of the first information within a target time period, the transmitting device may continuously transmit the first information within at least one sub-time period of each of multiple target time periods. For example, as shown in Figure 4F, the transmitting device continuously transmits the first information within the first sub-time period of two T0s, and transmits all the data of the first information through two transmissions.

[0158] With the above design, the method by which the sending device sends the first information within the target time period is simple and easy to implement.

[0159] In one possible design, the length of at least one sub-time period and the length of the target time period satisfy the following relationship:

[0160] Where N represents the total number of sub-time periods in at least one sub-time period; i represents the index of the sub-time period in at least one sub-time period, where i is a positive integer; T i K represents the duration of the i-th sub-time period within at least one sub-time period. i T0 represents the multiple of the PSD of the wireless signal carrying the first information in the i-th sub-time period relative to the first value; T0 represents the length of the target time period.

[0161] In a specific example, taking the example given in Figure 4B, substituting... Then there is

[0162] In a specific example, taking the example given in Figure 4E, the PSD of the wireless signal carrying the first information in the first sub-time period is N / M times the first value, where M=1, then N / M=N. Substituting... Then there is

[0163] By restricting the relationships described above, it can be ensured that when the transmitting device continuously transmits the first information via wireless signal in at least one sub-time period within the target time period, the PSD of the wireless signal in the target time period will not exceed the PSD of the wireless signal in the target time period when the transmitting device continuously transmits the first information via wireless signal within the target time period. In other words, it is guaranteed that the PSD of the wireless signal carrying the first information will not increase in the target time period, thus better ensuring that the wireless signal carrying the first information can meet regulatory requirements.

[0164] In one possible design, the receiving device can keep its receiver on continuously (i.e., continuously perform receiving operations), thereby ensuring successful reception of the first information when the sending device transmits it. This avoids missed information by the receiving device and improves communication reliability.

[0165] In one possible design, the transmitting device can transmit first indication information, which indicates the transmission method of the wireless signal carrying first information. Correspondingly, the receiving device receives the first indication information and, according to the transmission method indicated by the first indication information, continuously receives the first information for at least one sub-time period within a target time period.

[0166] For example, the first indication information can be a one-bit flag. When the flag is 1, it indicates that the sending device continuously sends the first information for at least one sub-time period within the target time period, and the receiving device continuously receives the first information for at least one sub-time period within the target time period. When the flag is 0, it indicates that the sending device continuously sends the first information within the target time period, and the receiving device continuously receives the first information within the target time period. Of course, the above is just an example, and the actual implementation of the first indication information is not limited to this.

[0167] With the above-mentioned device, when the transmitting device continuously transmits the first information within at least one sub-time period within the target time period, the receiving device can continuously receive the first information only within that at least one sub-time period, thereby saving device power consumption.

[0168] In one possible design, the transmitting device can send second indication information to determine the position of at least one sub-time period within a target time period. Correspondingly, the receiving device receives the second information, determines the position of at least one sub-time period within the target time period based on the second information, and then continuously receives the first information within that at least one sub-time period.

[0169] For example, the second indication information may indicate the start position of each sub-time period within at least one sub-time period. The receiving device begins the receiving operation at the start position of each sub-time period.

[0170] Optionally, the second indication information may also indicate the duration of each sub-time period within at least one sub-time period, with the receiving device starting the receiving operation at the beginning of each sub-time period and stopping the receiving operation at the end of each sub-time period. Alternatively, the receiving device may start the receiving operation at the beginning of each sub-time period and stop the receiving operation if no information is received after a certain duration.

[0171] It is understood that the sending device may send only one of the first instruction information and the second instruction information, or it may send both. Furthermore, when the sending device sends both the first instruction information and the second instruction information, they may be carried in the same message (i.e., sent simultaneously) or they may be carried in different messages (i.e., not sent simultaneously), without restriction.

[0172] With the above design, when the transmitting device continuously transmits the first information within at least one sub-time period of the target time period, the receiving device can determine the location of the at least one sub-time period, thereby achieving continuous reception of the first information within the at least one sub-time period and saving device power consumption.

[0173] It is understood that the above designs can be implemented individually or in combination, and this application does not impose any restrictions.

[0174] The methods provided by the embodiments of this application have been described above with reference to the accompanying drawings. The apparatus provided by the embodiments of this application will be described below with reference to the accompanying drawings.

[0175] Based on the same technical concept, embodiments of this application provide a communication device, which includes a module / unit / means for performing the methods executed by the transmitting device and / or receiving device in the above-described method embodiments. This module / unit / means can be implemented in software, or in hardware, or implemented in hardware executing corresponding software.

[0176] For example, referring to FIG5, the device may include a transceiver module 501 and a processing module 502.

[0177] When the device is the aforementioned transmitting device or is located within the aforementioned transmitting device:

[0178] Processing module 502 is used to generate the first information;

[0179] The transceiver module 501 is configured to continuously transmit first information within at least one sub-time period of a target time period; wherein the Wi-Fi signal carrying the first information is in the ultra-wideband (UWB) frequency band; the sum of the time lengths of the at least one sub-time period is less than the time length of the target time period; the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period of the at least one sub-time period is greater than a first value, the first value being the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period when continuously transmitting the first information within the target time period.

[0180] When the device is the aforementioned receiving device or is located within the aforementioned receiving device:

[0181] Transceiver module 501 is used to continuously receive first information during at least one sub-time period within the target time period;

[0182] Processing module 502 is used to process first information; wherein, the true Wi-Fi signal carrying the first information is in the UWB frequency band; the sum of the time lengths of at least one sub-time period is less than the time length of the target time period; the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period of at least one sub-time period is greater than a first value, the first value being the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period when the first information is continuously transmitted within the target time period.

[0183] It should be understood that all relevant content of each step involved in the above method embodiments can be referenced from the functional description of the corresponding functional module, and will not be repeated here.

[0184] In practical implementation, the above-mentioned device can take many product forms. Several possible product forms are introduced below.

[0185] Referring to Figure 6, this application embodiment also provides a communication device, which includes at least one processor 601 and an interface circuit 602; the interface circuit 602 is used to receive signals from other devices outside the device and send or receive signals to the processor 601 or send signals from the processor 601 to other communication devices outside the device, and the processor 601 is used to implement the methods executed by the sending or receiving device through logic circuits or execution code instructions.

[0186] It should be understood that the processor mentioned in the embodiments of this application can be implemented in hardware or software. When implemented in hardware, the processor can be a logic circuit, integrated circuit, etc. When implemented in software, the processor can be a general-purpose processor, implemented by reading software code stored in memory.

[0187] For example, the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0188] It should be understood that the memory mentioned in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate Synchronous DRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM).

[0189] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA, or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, the memory (storage module) can be integrated into the processor.

[0190] It should be noted that the memories described herein are intended to include, but are not limited to, these and any other suitable types of memories.

[0191] Based on the same technical concept, embodiments of this application also provide a computer-readable storage medium, including a program or instructions that, when run on a computer, cause the method performed by the transmitting or receiving device described above to be executed.

[0192] Based on the same technical concept, this application also provides a computer program product containing instructions, which stores instructions that, when run on a computer, cause the method executed by the aforementioned transmitting or receiving device to be executed.

[0193] Based on the same technical concept, embodiments of this application also provide a communication system, including the above-described transmitting device and receiving device.

[0194] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0195] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in one or more blocks of the flowchart illustrations and / or one or more blocks of the block diagrams.

[0196] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more block diagrams.

Claims

1. A communication method, characterized in that, The method includes: Generate the first information; The first information is continuously sent during at least one sub-time period within the target time period; Wherein, the Wi-Fi signal carrying the first information is in the Ultra Wideband (UWB) band; the sum of the time lengths of the at least one sub-time period is less than the time length of the target time period; the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period of the at least one sub-time period is greater than a first value, the first value being the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period when the first information is continuously transmitted within the target time period.

2. The method as described in claim 1, characterized in that, The UWB frequency band ranges from 7163MHz to 8812MHz.

3. The method as described in claim 1 or 2, characterized in that, The power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is greater than a second value, and the second value is the power spectral density of the Wi-Fi signal carrying the first information in the target time period.

4. The method as described in claim 3, characterized in that, The measurement time of the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is the first sub-time period, and the measurement time of the power spectral density of the Wi-Fi signal carrying the first information in the target time period is the target time period.

5. The method according to any one of claims 1-4, characterized in that, The at least one sub-time period is a plurality of sub-time periods, and at least two of the plurality of sub-time periods have different durations.

6. The method as described in claim 5, characterized in that, The power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is determined based on the first sub-time period.

7. The method as described in claim 5 or 6, characterized in that, The power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is related to one or more of the following: The duration of the first sub-time period; The priority of the first sub-time period; The required transmission distance for the first sub-time period.

8. The method according to any one of claims 1-4, characterized in that, The target time period consists of N sub-time periods of equal length, and the at least one sub-time period is M of the N sub-time periods of equal length, where M is a positive integer and N is a positive integer greater than M.

9. The method as described in claim 8, characterized in that, The power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is N / M times the first value.

10. The method according to any one of claims 1-9, characterized in that, The duration of the sub-time period in the at least one sub-time period and the duration of the target time period satisfy the following relationship: Wherein, N represents the total number of sub-time periods of the at least one sub-time period; i represents the sequence number of the sub-time period in the at least one sub-time period, and i is a positive integer; T i K represents the time length of the i-th sub-time period in the at least one sub-time period. i The power spectral density of the Wi-Fi signal carrying the first information in the i-th sub-time period is a multiple of the first value; T0 represents the length of the target time period.

11. The method according to any one of claims 1-10, characterized in that, Also includes: Send first indication information, which is used to indicate the transmission method of the Wi-Fi signal carrying the first information.

12. The method according to any one of claims 1-11, characterized in that, Also includes: Send a second indication message, which is used to determine the position of the at least one sub-time period within the target time period.

13. The method as described in claim 12, characterized in that, The second indication information is used to indicate the starting position of each sub-time period in the at least one sub-time period.

14. The method as described in claim 13, characterized in that, The second indication information is also used to indicate the duration of each sub-time period in the at least one sub-time period.

15. A communication method, characterized in that, The method includes: Continuously receive the first information within at least one sub-time period of the target time period; Process the first information; Wherein, the Wi-Fi signal carrying the first information is in the Ultra Wideband (UWB) band; the sum of the time lengths of the at least one sub-time period is less than the time length of the target time period; the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period of the at least one sub-time period is greater than a first value, the first value being the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period when the first information is continuously transmitted within the target time period.

16. The method as described in claim 15, characterized in that, The UWB frequency band ranges from 7163MHz to 8812MHz.

17. The method as described in claim 15 or 16, characterized in that, The power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is greater than a second value, and the second value is the power spectral density of the Wi-Fi signal carrying the first information in the target time period.

18. The method as described in claim 17, characterized in that, The measurement time of the power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is the first sub-time period, and the measurement time of the power spectral density of the Wi-Fi signal carrying the first information in the target time period is the target time period.

19. The method according to any one of claims 15-18, characterized in that, The at least one sub-time period is a plurality of sub-time periods, and at least two of the plurality of sub-time periods have different durations.

20. The method as described in claim 19, characterized in that, The power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is determined based on the first sub-time period.

21. The method as described in claim 19 or 20, characterized in that, The power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is related to one or more of the following: The duration of the first sub-time period; The priority of the first sub-time period; The required transmission distance for the first sub-time period.

22. The method according to any one of claims 15-18, characterized in that, The target time period consists of N sub-time periods of equal length, and the at least one sub-time period is M of the N sub-time periods of equal length, where M is a positive integer and N is a positive integer greater than M.

23. The method as described in claim 22, characterized in that, The power spectral density of the Wi-Fi signal carrying the first information in the first sub-time period is N / M times the first value.

24. The method according to any one of claims 15-23, characterized in that, The duration of the sub-time period in the at least one sub-time period and the duration of the target time period satisfy the following relationship: Wherein, N represents the total number of sub-time periods of the at least one sub-time period; i represents the sequence number of the sub-time period in the at least one sub-time period, and i is a positive integer; T i K represents the time length of the i-th sub-time period in the at least one sub-time period. i The power spectral density of the Wi-Fi signal carrying the first information in the i-th sub-time period is a multiple of the first value; T0 represents the length of the target time period.

25. The method according to any one of claims 15-24, characterized in that, Also includes: Receive first indication information, the first indication information being used to indicate the transmission method of the Wi-Fi signal carrying the first information; The step of continuously receiving the first information within at least one sub-time period of the target time period includes: According to the transmission method, the first information is continuously received during at least one sub-time period within the target time period.

26. The method according to any one of claims 15-25, characterized in that, Also includes: Receive the second instruction information; The position of the at least one sub-time period within the target time period is determined based on the second indication information.

27. The method as described in claim 26, characterized in that, The second indication information is used to indicate the starting position of each sub-time period in the at least one sub-time period.

28. The method as described in claim 27, characterized in that, The second indication information is also used to indicate the duration of each sub-time period in the at least one sub-time period.

29. A communication device, characterized in that, It includes modules for performing the method as described in any one of claims 1-14, or modules for performing the method as described in any one of claims 15-28.

30. A communication device, characterized in that, include: At least one processor and interface circuitry; The interface circuit is used to receive signals from other devices outside the device and send or receive signals to the processor or send signals from the processor to other devices outside the device. The processor is used to implement the method as described in any one of claims 1-14, or to implement the method as described in any one of claims 15-28, through logic circuits or execution code instructions.

31. A computer-readable storage medium, characterized in that, The storage medium stores a computer program or instructions, which, when executed by a communication device, implement the method as described in any one of claims 1-14, or the method as described in any one of claims 15-28.

32. A computer program product, characterized in that, The computer program product stores instructions that, when run on a computer, cause the computer to perform the method as described in any one of claims 1-14, or cause the computer to perform the method as described in any one of claims 15-28.

33. A communication system, characterized in that, include: A transmitting device, configured to perform the method as described in any one of claims 1-14; A receiving device for performing the method as described in any one of claims 15-28.

Images