CN119728021B

CN119728021B - Symbol structure configuration method, apparatus, communication device, storage medium and computer program product for a sense-of-general frame

Info

Publication number: CN119728021B
Application number: CN202411841504.6A
Authority: CN
Inventors: 丁雪; 许晓航; 司伟; 李皛; 于金杨
Original assignee: China Telecom Technology Innovation Center; China Telecom Corp Ltd
Current assignee: China Telecom Technology Innovation Center; China Telecom Corp Ltd
Priority date: 2024-12-13
Filing date: 2024-12-13
Publication date: 2025-11-07
Anticipated expiration: 2044-12-13
Also published as: CN119728021A

Abstract

The application relates to a symbol structure configuration method, a symbol structure configuration device, a symbol structure configuration communication device, a symbol structure configuration storage medium and a symbol structure configuration computer program product of a sense frame. The method comprises the steps of determining initial symbol configuration data based on expected perception overhead of a target scene, expected perception distance, total number of symbols of a sense frame and single symbol duration of the sense frame, and determining target symbol configuration data of the sense frame based on performance index requirements of the target scene and the initial symbol configuration data, wherein the performance index at least comprises expected perception speed of the target scene, and the sense frame is at least used for transmitting one or more of pulse waves and continuous waves. By adopting the method, the symbol structure of the passsense frame can be flexibly configured, so that various requirements on the sensing distance and the sensing precision under different scenes can be met, the effective improvement of the passsense performance of the passsense frame under different scenes can be realized, and the popularization and implementation of a communication sensing integrated scheme based on a cellular network can be facilitated.

Description

Symbol structure configuration method, apparatus, communication device, storage medium and computer program product for a sense-of-general frame

Technical Field

The present application relates to the field of wireless communication and sensing technologies, and in particular, to a symbol structure configuration method, apparatus, communication device, storage medium and computer program product for a sense frame.

Background

Along with the continuous development of the communication perception integration technology, the application scene of the communication perception integration technology is wider and wider, for example, the communication perception integration technology can be applied to the fields of airspace traffic, ground traffic, water area traffic and the like, and the requirements of unmanned aerial vehicles, eVTOL and the like, ground vehicles, water area ships and the like for communication and perception exist at the same time. And the communication guarantees effective data and communication signal transmission, perceives the safe movement of the guarantee target and accords with the supervision requirement. The communication and perception integrated technology is utilized to enable a widely deployed cellular network, communication and perception capabilities can be provided simultaneously, and the method has the advantages of reducing deployment cost and resisting limitation of factors such as severe weather environment, poor light, vision distance shielding and the like.

In the related art, in order to realize the communication perception integrated design based on the cellular network, to meet the perception capability requirements of different scenes, the symbol configuration of flexibly configuring the general sense frame structure is a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a symbol structure configuration method, a symbol structure configuration device, communication equipment, a storage medium and a computer program product of a sense frame, which can meet different perception capability requirements of different scenes and realize the flexibility of symbol configuration of the sense frame structure.

A symbol structure configuration method of a sense-of-all frame, the method comprising:

Determining initial symbol configuration data based on a desired perceived overhead of a target scene, a desired perceived distance, a total number of symbols of a passsense frame, and a single symbol duration of the passsense frame;

and determining target symbol configuration data of the passsense frame based on performance index requirements of the target scene and the initial symbol configuration data, wherein the performance index at least comprises a desired perception speed of the target scene, and the passsense frame is at least used for transmitting one or more of pulse waves and continuous waves.

In one embodiment, the initial symbol configuration data at least includes a number of perceptual symbols, and the initial symbol configuration data further includes a number of symbols occupied by a continuous wave and/or a number of symbols occupied by a single pulse wave.

In one embodiment, the initial symbol configuration data comprises the number of symbols occupied by a single pulse wave, and the determining the initial symbol configuration data based on the expected perception overhead of the target scene, the expected perception distance, the total number of symbols of the sense frame and the single symbol duration of the sense frame comprises:

determining a perceived symbol duty cycle based on the desired perceived overhead of the target scene;

determining the number of the sensing symbols based on the sensing symbol duty ratio and the total number of symbols of the sense frame;

And determining the number of target symbols occupied by the single pulse wave matched with the expected farthest coverage distance of the target scene based on the receiving duration of the pulse wave and the switching time, wherein the switching time is determined based on hardware attributes, and the receiving duration is preconfigured based on the target scene.

In one embodiment, the performance index further includes a miss rate, a false alarm rate, a coverage distance accuracy, a coverage distance resolution, a perception speed accuracy, and a perception speed resolution, and the determining the target symbol configuration data of the sense frame based on the performance index requirement of the target scene and the initial symbol configuration data includes:

Determining a transmitting position of the pulse wave and a receiving window length of the pulse wave based on the expected perception distance of the target scene;

determining the length of a transmitting window of the pulse wave based on a coverage blind area corresponding to the target scene;

Determining the duration time of a single pulse and the pulse accumulation times based on the omission ratio and the false alarm ratio, wherein the pulse accumulation times are accumulation times meeting the refresh rate requirement;

calculating a pulse repetition interval based on the desired perceived speed;

determining a pulse repetition number based on the perceived speed accuracy and the perceived speed resolution, the pulse repetition number being a repetition number of the pulse wave within a single passband frame;

Determining the number of symbols occupied by the single pulse wave, the transmitting position of the pulse wave, the transmitting window length of the pulse wave, the receiving window length of the pulse wave, the duration of the single pulse, the pulse accumulation times, the pulse repetition interval and the pulse repetition times, and configuring data for target symbols.

In one embodiment, the determining the transmitting position of the pulse wave and the receiving window length of the pulse wave based on the expected perceived distance of the target scene includes:

based on the expected perceived distance of the target scene, a transmission position of the pulse wave and a reception window length of the pulse wave are determined.

In one embodiment, the determining the duration of the single pulse and the pulse accumulation number based on the omission ratio and the false alarm ratio includes:

determining the lowest signal-to-noise ratio based on the omission ratio and the false alarm ratio;

the duration of the single pulse and the number of pulse accumulations are determined based on the correlation between the lowest signal-to-noise ratio, the desired perceived/covered distance and the transmission parameters.

In one embodiment, the method further comprises:

The transmit power and transmit antenna gain are determined based on the correlation between the lowest signal-to-noise ratio, the desired perceived/covered distance, and the transmit parameters.

In one embodiment, the passsense frame is further used to transmit a continuous wave, and the method further comprises:

Calculating a coverage blind area of the pulse wave;

determining a coverage distance of a continuous wave based on a length of a cyclic prefix, the coverage distance of the continuous wave being used to supplement a coverage dead zone of the pulse wave;

And under the condition that the coverage distance of the continuous wave is ensured to be larger than or equal to the coverage blind area of the pulse wave, the duration of the single pulse is adjusted, and the adjusted duration of the single pulse is obtained.

In one embodiment, the method further comprises:

And transmitting a signal based on a signal transmission mode and the target symbol configuration data corresponding to the sense frame, wherein the signal at least comprises the sense frame, and the signal transmission mode is determined based on a target scene.

In one embodiment, the signaling mode includes one or more of the following:

A first portion of the passsense frame transmits a pulse wave and a second portion of the passsense frame transmits a continuous wave;

the passsense frame transmits pulse waves;

the passsense frame transmits a continuous wave;

The sense frame transmits a pulse wave, and the next sense frame of the sense frame transmits a continuous wave.

A symbol structure configuration apparatus of a passable frame, the apparatus comprising:

a first determining module, configured to determine initial symbol configuration data based on a desired perceived overhead of a target scene, a desired perceived distance, a total number of symbols of a generic frame, and a single symbol duration of the generic frame;

And the second determining module is used for determining target symbol configuration data of the passsense frame based on the performance index requirement of the target scene and the initial symbol configuration data, wherein the passsense frame is at least used for transmitting pulse waves.

A communication device includes a processor;

the processor is configured to determine initial symbol configuration data based on a desired perceived overhead of a target scene, a desired perceived distance, a total number of symbols of a passable frame, and a single symbol duration of the passable frame;

The processor is further configured to determine target symbol configuration data of the sense frame based on performance index requirements of a target scene and the initial symbol configuration data, where the sense frame is at least used for transmitting pulse waves.

A computer readable storage medium having stored thereon a computer program which when executed by a processor performs steps in an embodiment of the application.

A computer program product comprising a computer program which, when executed by a processor, implements a symbol structure configuration method for a sense frame provided by an embodiment of the present application.

The symbol structure configuration method, the device, the communication equipment, the storage medium and the computer program product of the passable frame, wherein the method comprises the steps of determining initial symbol configuration data based on expected perception overhead, expected perception distance, total number of symbols of the passable frame and single symbol duration of the passable frame of a target scene, determining target symbol configuration data of the passable frame based on performance index requirements of the target scene and the initial symbol configuration data, wherein the performance index at least comprises expected perception speed of the target scene, and the passable frame is at least used for transmitting one or more of pulse waves and continuous waves. By adopting the method, the symbol structure of the passsense frame can be flexibly configured, so that various requirements on the sensing distance and the sensing precision under different scenes can be met, the effective improvement of the passsense performance of the passsense frame under different scenes can be realized, and the popularization and implementation of a communication sensing integrated scheme based on a cellular network can be facilitated.

Drawings

FIG. 1 is a flow chart of a symbol structure configuration method of a sense frame in one embodiment;

FIG. 2 is a flowchart illustrating a step of determining a target symbol number in one embodiment;

FIG. 3 is a flowchart illustrating steps for determining target symbol configuration data in one embodiment;

FIG. 4 is a flow chart illustrating steps for determining duration and accumulated times in one embodiment;

FIG. 5 is a flow diagram of a determine duration step in one embodiment;

FIG. 6 is a schematic diagram of pulse wave and continuous wave structures according to one embodiment;

FIG. 7 is a schematic diagram of an overlay in one embodiment;

FIG. 8 is a schematic diagram of a perceived blind region R _b and a perceived maximum coverage distance R _max in one embodiment;

FIG. 9 is a schematic diagram of perceived maximum coverage distance R _max in one embodiment;

FIG. 10 is a schematic diagram of the number of pulse waves that a sense frame may send in one embodiment;

FIG. 11 is a front-to-back schematic diagram of adjusting the pulse wave transmission position in one embodiment;

FIG. 12 is a flow chart of parameter adjustment in one embodiment;

FIG. 13 is a schematic diagram of adjusting a single pulse transmission time period T _t in one embodiment;

FIG. 14 is a schematic diagram of parameter configuration based on performance index requirements in one embodiment;

FIG. 15 is a schematic diagram of coverage distances of a base station in one embodiment;

FIG. 16 is a block diagram of a symbol structure configuration apparatus of a sense frame in one embodiment;

fig. 17 is an internal structural diagram of a communication device in one embodiment.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The network device in the embodiment of the present application may be a base station (Base Transceiver Station, BTS) in global mobile communication (Global System of Mobile communication, GSM for short) or code division multiple access (Code Division Multiple Access, CDMA for short), a base station (NodeB, NB for short) in wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA for short), an evolved base station (Evolutional Node B, eNB or eNodeB for short) in LTE, a relay station or access point, or a base station in a 5G network, etc., which are not limited herein.

The terminal in the embodiments of the present application may be a wireless terminal, which may be a device that provides voice and/or other service data connectivity to a user, or a handheld device with wireless connection capability, or other processing device connected to a wireless modem. The wireless terminals may communicate with one or more core networks via a radio access network (Radio Access Network, RAN for short), which may be mobile terminals such as mobile phones (or "cellular" phones) and computers with mobile terminals, for example, portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access network. A wireless Terminal may also be referred to as a system, subscriber Unit (Subscriber Unit), subscriber Station (Subscriber Station), mobile Station (Mobile Station), remote Terminal (Remote Terminal), access Terminal (ACCESS TERMINAL), user Terminal (User Terminal), user Agent (User Agent), user equipment (User Device or User Equipment), without limitation.

Due to the continuous expansion of the application field of the perception integration technology, the widely deployed cellular network is energized through the perception integration technology, so that the communication capability and the perception capability can be provided at the same time, and the method has the advantages in the aspects of reducing the deployment cost, resisting the severe environment and the like. In order to realize the traffic perception integration based on the cellular network and meet the requirements of different scenes on the perception capability, flexible configuration is required from the aspects of symbol configuration of a traffic perception frame structure and the like. Because the application scenes of communication perception integration are more, different scenes have different requirements for perception capability, for example, the requirements of different scenes for coverage distances are different, the moving speeds of target objects in different scenes are different, and the requirements for speed measurement capability are also different. Based on this, the symbol structure configuration method of the sense frame provided by the embodiment of the application can determine the waveform type (the waveform can be continuous wave and/or pulse wave) based on the actual application scene in the aspect of the configuration of the sense frame structure, in particular, based on the characteristics of different waveforms and the retrograde symbol configuration, so as to meet the requirements of the sensing capability of different scenes.

The symbol structure configuration method of the sense-of-general frame provided by the embodiment of the application is a flexible configuration method of frame structure symbols aiming at the perception capability requirements of different scenes, for example, the configuration of the sense-of-general frame can be realized based on the perception characteristics of pulse waves and continuous waves. Firstly, according to the requirement of the maximum perception distance, the length range of a perception pulse wave receiving window is determined, and the number of symbols occupied by one pulse wave is determined by combining the pulse wave sending time length and the receiving and transmitting window switching time, so that the theoretical upper limit of the perception distance is given. And then, according to the requirements of the perceived false alarm rate and the false alarm rate, determining the signal-to-noise ratio requirements required by perception, thereby obtaining the perceived distance range under the condition of different signal-to-noise ratios. By adjusting the methods of signal transmitting power, antenna gain, signal duration, etc., the signal to noise ratio can be further improved, thereby obtaining a further coverage distance. Further, according to requirements of performance indexes such as resolution, precision and the like of sensing ranging and speed measurement, single pulse duration, pulse repetition period, pulse repetition times and the like are flexibly designed. Meanwhile, the single pulse duration can cause a near point of the base station to have a perception blind area, and the near point blind compensation capability of the continuous wave is required to be matched. By adopting the method, the communication sensing capability under different scenes can be effectively improved, and the implementation and popularization of the communication sensing integrated technical scheme based on the cellular network are facilitated.

It should be noted that the beneficial effects or the technical problems to be solved by the embodiments of the present application are not limited to this one, but may be other implicit or related problems, and particularly, reference may be made to the following description of embodiments.

The following describes the technical scheme of the present application and how the technical scheme of the present application solves the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.

In one embodiment, as shown in fig. 1, a symbol structure configuration method of a sense frame is provided, which may be applied to a terminal or a network device, and may be specifically determined through an actual application scenario, where the embodiment may be described by taking the application of the method to the terminal as an example, and includes the following steps:

step 102, determining initial symbol configuration data based on a desired perceived overhead of the target scene, a desired perceived distance, a total number of symbols of the passable frame, and a single symbol duration of the passable frame.

The target scene can be a scene which is required to be subjected to the sensing capability configuration at present, for example, a low-altitude scene and the like, and the expected sensing cost of the target scene can be the sensing resource cost required by the target scene or the sensing resource cost required or limited by the target scene. The desired perceived distance may be the desired coverage distance or the current required or desired coverage distance of the target scene, or may be the furthest coverage distance of the target scene. The total number of symbols of a communication frame may be the number of symbols of one communication frame, for example, the total number of symbols of one communication frame may be determined based on a time slot of the communication frame and a period of the time slot. The communication frame single symbol duration T _symbol may be a duration that characterizes the occupation of one symbol. The initial symbol configuration data may be parameters for configuring the symbol structure of the communication frame to thereby implement configuration of the perceptibility of the communication frame, for example, the initial symbol configuration data may include the number of perceptual symbols and the number of symbols occupied by the single pulse wave, and the number of perceptual symbols N _sense may be the number of symbols configured to carry the perceptibility in one communication frame, which characterizes the duty ratio of the perceptual symbols in one communication frame. The number of symbols occupied by a single pulse wave may be the length of the symbols occupied by a single pulse wave in one communication frame. The number of perceptual symbols is less than or equal to the total number of symbols of the communication frame.

Specifically, after determining a target scene needing to be subjected to sensing capability configuration, the terminal may acquire an expected sensing overhead, an expected sensing distance, a total number of symbols of a sense frame and a single symbol duration of the sense frame corresponding to the target scene, and calculate initial symbol configuration data corresponding to the target scene based on the data.

Step 104, determining target symbol configuration data of the passthrough frame based on the performance index requirement of the target scene and the initial symbol configuration data.

Wherein the performance index includes at least a desired perceived speed of the target scene, and the passsense frame is used to transmit at least one or more of a pulse wave and a continuous wave. The expected perception speed of the target scene is the maximum value of the perception speed required or limited by the target scene or the perception speed actually required by the target scene. The sense frame is a data frame integrating a communication function and a perception function, can be used for transmitting pulse waves or continuous waves based on the requirement of a target scene, and can be used for transmitting a part of pulse waves and the rest of continuous waves. Alternatively, the pulse wave may be a continuous frequency modulated wave LFM, and the continuous wave may be orthogonal frequency division multiplexing OFDM.

Specifically, the terminal may acquire the requirement of at least one performance index of the target scene and the initial symbol configuration data determined in the steps of the foregoing embodiment, process the requirement to obtain target symbol configuration data in the target scene, and configure the target symbol configuration data to obtain a generic frame for transmitting signals in the target scene. In this way, the terminal can send pulse waves, or continuous waves, or both pulse waves and continuous waves through the configured passsense frame based on the actual requirements of the actual application scene.

In one embodiment, the initial symbol configuration data comprises at least a number of perceptual symbols, the initial symbol configuration data further comprising a number of symbols occupied by the continuous wave and/or a number of symbols occupied by the single pulse wave.

Specifically, the number of sensing symbols may be the number of symbols for implementing a sensing function, which is determined from a plurality of symbols included in one communication period of the sense frame, the number of sensing symbols may be determined based on a desired sensing overhead of the target scene, the number of communication symbols may be determined based on the total number of symbols of the sense frame and the number of sensing symbols, and for example, a difference between the total number of symbols and the number of sensing symbols may be determined as the number of communication symbols. The number of symbols occupied by the continuous wave is the number of sensing symbols transmitting the continuous wave, and the number of symbols occupied by the single pulse wave is the number of sensing symbols used for transmitting the single pulse wave.

Alternatively, the terminal may determine a ratio of the sensing symbols for transmitting the continuous wave based on the target scene, and determine the number of sensing symbols used for transmitting the continuous wave in a period of one sense frame based on the ratio and the number of sensing symbols, and obtain the number of sensing symbols used for transmitting the pulse wave based on the number of sensing symbols and the number of sensing symbols used for transmitting the continuous wave.

Or the terminal may determine a ratio of the sensing symbols of the transmitted pulse wave based on the target scene, determine the number of sensing symbols used for transmitting the pulse wave in a period of one sense frame based on the ratio and the number of sensing symbols, and obtain the number of sensing symbols used for transmitting the continuous wave based on the number of sensing symbols and the number of sensing symbols used for transmitting the pulse wave.

Alternatively, one communication frame period DDDSU, the corresponding subcarrier spacing may be 129kHz, the passcode frame contains 5 slots of 0.625ms period, each symbol T _symbol =8.9 μs, and the total number of symbols of the corresponding passcode frame may be 79. For example, the expected resource overhead of the target scene may be not more than 30%, and then the corresponding number of sensing symbols N _sense =20 determined by the terminal, that is, of 79 symbols included in the communication frame, 20 symbols may be selected as sensing symbols, and the remaining 59 symbols are selected as communication symbols.

Optionally, in an application scenario of continuous coverage, the terminal may perform remote coverage by using a pulse wave, where the continuous wave is used to cover a near-point blind area of the pulse, based on actual requirements of the scenario, the terminal may determine a proportion of sensing symbols used for transmitting the pulse wave, for example, the proportion may be three fifths, and the corresponding number of sensing symbols that may be determined to be used for transmitting the pulse wave is 12, and the corresponding calculated number of sensing symbols that may be used for transmitting the continuous wave is 8. Alternatively, the terminal may also transmit pulse waves all in one period of the passsense frame, continuous waves all in the next period of the passsense frame, and so on, based on the requirements of the actual application scenario.

In this embodiment, the number of symbols of the transmitted pulse wave and the number of sensing symbols of the transmitted continuous wave adapted to the scene are determined according to the actual requirement of the scene, so as to ensure the flexibility of symbol structure configuration and meet the sensing requirement of the scene.

In one embodiment, the initial symbol configuration data includes the number of symbols occupied by a single pulse wave. As shown in fig. 2, the step of determining initial symbol configuration data based on the desired perceived overhead of the target scene, the desired perceived distance, the total number of symbols of the sense frame, and the single symbol duration of the sense frame, includes:

step 202, determining a perceived symbol duty cycle based on a desired perceived overhead of a target scene.

The expected perceived cost of the target scene may be the perceived resource cost required by the target scene, or the perceived resource cost required or limited by the target scene, that is, the proportion of communication resources expected by the target scene to be used for realizing the perceived function.

Specifically, the terminal may determine the duty ratio of the sensing symbol corresponding to the sensing frame based on the ratio of the communication resource expected by the target scene to implement the sensing function, for example, may convert the ratio of the communication resource expected by the target scene to implement the sensing function, to obtain the maximum duty ratio of the sensing symbol of the sensing frame.

In one example, one communication frame period DDDSU, the corresponding subcarrier spacing may be 129kHz, the passsense frame contains 5 slots 0.625ms periods, each symbol Tsymbol = 8.9 mus, and the total number of symbols of the corresponding passsense frame may be 79. For example, the expected resource overhead for the target scenario may be no more than 30%, and correspondingly, the perceived symbol ratio determined by the terminal needs to be less than thirty percent.

Step 204, determining the number of sensing symbols based on the sensing symbol duty cycle and the total number of symbols of the sense frame.

Specifically, the terminal may calculate, based on the sensing symbol duty ratio and the total number of symbols in one period of the sense frame, a maximum number of the sensing symbols, and determine the number of matched sensing symbols based on the maximum number of the sensing symbols.

In one example, the sensing symbol may be thirty percent, the total number of symbols in one period of the corresponding sense frame may be 79, the maximum number of sensing symbols that can be calculated may be 23.7, i.e., the number of sensing symbols in the target scene needs to be less than 23.7, then the terminal may select the sensing symbol number N _sense =20. The terminal may determine the difference between the total number of symbols and the number of perceived symbols as the number of communication symbols, e.g., the terminal may determine that the number of perceived symbols is 20, the corresponding number of communication symbols may be 59, the terminal may select 20 symbols as perceived symbols and the remaining 59 symbols as communication symbols among 79 symbols included in the communication frame.

Step 206, determining the number of target symbols occupied by the single pulse wave matched with the expected farthest coverage distance of the target scene based on the receiving duration and switching time of the pulse wave.

The switching time is determined based on a hardware attribute, the receiving duration is preconfigured based on a target scene, and the hardware attribute can be determined by the hardware attribute of the network device for transmitting the signal. The length of time of receipt may be configured based on the actual requirements of the target scene.

Specifically, the terminal may determine, based on a preconfigured receiving duration and a switching time of the pulse wave, different numbers of sensing symbols occupied by transmitting a single pulse wave, where the actual coverage distances of the target scenes respectively correspond to the different numbers of sensing symbols, match the expected farthest coverage distances of the target scenes based on the different numbers of sensing symbols respectively corresponding to the actual coverage distances, and determine, based on the number of sensing symbols occupied by transmitting a single pulse, the number of sensing symbols occupied by transmitting a single pulse corresponding to the actual coverage distances of the target scenes, that is, the actual coverage distances of the target scenes formed by transmitting a single pulse wave through the sensing symbols of the number in the actual communication process, where the actual coverage distances of the terminal transmission signals in the target scenes are greater than or equal to the expected farthest coverage distances of the target scenes.

Optionally, the terminal may determine, based on the actual application requirement of the target scene, the desired farthest coverage distance of the target scene, and determine the number of perceived symbols occupied by transmitting a single pulse wave. For example, the number of symbols N _p occupied by a single pulse wave may be 1,2,3, 4 and each non-integer, the pulse transmission duration may be 1-4 microseconds, for example, the pulse duration configured in the actual application scene may be 2 microseconds, the switching time may be 1.5 microseconds, then the terminal may calculate that the number of symbols N _p occupied by a matched single pulse wave is selected based on the expected farthest coverage distance of the target scene, where N _p is 1, the actual coverage distance of the corresponding target scene may be 1035m, where N _p is 2, the actual coverage distance of the corresponding target scene may be 2370m, where N _p is 3, the actual coverage distance of the corresponding target scene may be 3705m, where N _p is 4, and the number of symbols occupied by a single pulse wave is determined by the terminal.

In this embodiment, the actual coverage distances corresponding to the different symbol numbers occupied by a single pulse wave can be rapidly calculated through the initial symbol configuration data, and the matched target symbol number is selected based on the actual expected farthest coverage distance, so that the scene requirement is met, and the communication resource overhead is saved.

In one embodiment, the performance metrics further include miss rate, false alarm rate, overlay distance accuracy, overlay distance resolution, perceived speed accuracy, and perceived speed resolution. Specifically, the performance index may be configured based on actual application requirements of the target scenario.

Accordingly, as shown in fig. 3, the step of determining the target symbol configuration data of the sense frame based on the performance index requirement of the target scene and the initial symbol configuration data includes:

Step 301, determining a transmission position of the pulse wave and a receiving window length of the pulse wave based on a desired perceived distance of the target scene.

Wherein the desired perceived distance of the target scene may be the desired furthest coverage distance of the target scene.

Specifically, the terminal may adjust the transmission position of the pulse wave when determining the number of symbols occupied by the single pulse wave, for example, may be the transmission position of the forward pulse wave, determine the position after the forward movement as the transmission position of the pulse wave, and correspondingly increase the length of the receiving window of the pulse wave based on the transmission position of the pulse wave, so as to obtain the length of the receiving window of the pulse wave. Correspondingly, the terminal determines the window length of the sending window of the pulse wave based on the allowed coverage blind area in the target scene.

Step 302, determining the length of a transmitting window of the pulse wave based on the coverage blind area corresponding to the target scene.

Specifically, the coverage blind area corresponding to the target scene may be an allowed coverage blind area determined based on the requirement of the target scene, that is, an uncovered distance allowed by the target scene, and the terminal may determine the transmission window length of the pulse wave, that is, determine the transmission window length of the pulse wave, based on the allowed coverage blind area of the target scene.

Step 303, determining the duration of the single pulse and the pulse accumulation number, which is the accumulation number satisfying the refresh rate requirement, based on the miss rate and the false alarm rate.

The false alarm rate can be the duty ratio of false alarm, and the omission factor and the false alarm rate can be the requirements of performance indexes of target scene requirements.

Specifically, the terminal may calculate, based on the performance requirement of the omission ratio and the performance requirement of the false alarm ratio, the lowest signal-to-noise ratio SNR _min that meets the performance requirement, determine the association between the lowest signal-to-noise ratio, the expected sensing distance of the target scene, the transmission parameter corresponding to the target scene, the duration of the single pulse, and the pulse accumulation number, and calculate, based on the association, after determining the values corresponding to the lowest signal-to-noise ratio, the expected sensing distance, and each transmission parameter, to obtain the duration T _t of the single pulse and the pulse accumulation number n.

Step 304, a pulse repetition interval is calculated based on the desired perceived speed.

In particular, the desired perceived speed may be a desired perceived maximum speed in the target scene. The pulse repetition interval may be a repetition interval of the perceived pulse (which may be denoted as T _p) and the terminal may determine the pulse repetition interval based on the maximum perceived speed, which corresponds to the number of symbols N _p occupied by a single pulse wave during one frame period of the passthrough frame.

Step 305, based on the perceived speed accuracy and perceived speed resolution, determines the number of pulse repetitions, which is the number of repetitions of the pulse wave within a single passband frame.

Specifically, the pulse repetition number is the number of times of repeatedly transmitting a pulse wave in one frame period T _f of one sense frame, and the terminal may acquire a performance requirement for sensing speed accuracy and a performance requirement for sensing speed resolution in the target scene, determine the sensing signal duration τ, and determine the pulse repetition number M based on the sensing signal duration.

Step 306, determining the number of symbols occupied by the single pulse wave, the transmitting position of the pulse wave, the transmitting window length of the pulse wave, the receiving window length of the pulse wave, the duration of the single pulse, the pulse accumulation number, the pulse repetition interval and the pulse repetition number, and configuring data for the target symbol.

Specifically, the terminal may determine the number of symbols occupied by the single pulse wave, the transmission position of the pulse wave, the transmission window length of the pulse wave, the reception window length of the pulse wave, the duration of the single pulse, the pulse accumulation number, the pulse repetition interval, and the pulse repetition number as target symbol configuration data, and configure the passband frame based on the target symbol configuration data, to obtain a configured passband frame. Thus, the terminal can transmit signals in the passthrough frame after the bronze drum is configured.

It should be noted that the present disclosure does not limit the execution sequence of the steps 301 to 306, and those skilled in the art may determine the execution sequence of the steps based on the specific situation of the actual application scenario.

In this embodiment, under the condition of considering the road loss caused by long distance, the requirements of the false alarm rate and the omission factor are considered, and by selecting a proper single pulse duration and pulse accumulation times, the reasonable increase of the perceived coverage distance is realized, and the signal gain is improved.

In one embodiment, as shown in fig. 4, the step of determining the duration of the single pulse and the number of pulse accumulations based on the omission ratio and the false alarm ratio includes:

step 402, determining the lowest signal-to-noise ratio based on the omission ratio and the false alarm ratio.

Specifically, the terminal may calculate the minimum signal-to-noise ratio SNR _min that meets the performance requirement of the omission ratio and the performance requirement of the false alarm ratio.

Step 404, determining duration of single pulse and pulse accumulation number based on association relationship among minimum signal-to-noise ratio, desired perceived/covered distance and transmission parameters.

The desired perceived/covered distance may be the desired farthest perceived distance of the target scene or the desired farthest covered distance R _max of the target scene, the duration of the single pulse wave may be the transmission duration T _t of the single pulse wave, and the cumulative number of pulses may be the cumulative total number of transmissions of the pulse wave in one communication frame period of the sense frame. The transmission parameters may include parameters where σ represents the scattering cross-sectional area of the perceived target, P _t represents the base station transmit power, G _t represents the transmit antenna gain, G _r represents the receive antenna gain, λ represents the signal wavelength, L represents RV processing loss, and NF represents noise and interference. The association relationship comprises the association relationship between the lowest signal-to-noise ratio, the expected perception/coverage distance, the transmission parameter and the duration of single pulse and the pulse accumulation number.

Specifically, after determining the lowest signal-to-noise ratio, the expected perceived distance of the target scene, and the transmission parameters corresponding to the target scene, the terminal may calculate based on the association relationship to obtain the duration T _t of the single pulse and the pulse accumulation number n.

Alternatively, the correlation between the minimum signal-to-noise ratio, desired perceived/covered distance, and transmission parameter and the duration of single pulse T _t and the number of pulse accumulations n can be expressed by the following formula:

In this embodiment, under the condition of considering the road loss caused by long distance, the requirements of the false alarm rate and the omission factor are considered, and by selecting a proper single pulse duration and pulse accumulation times, the reasonable increase of the sensing coverage distance is realized, and the signal gain is improved.

In one embodiment, the method further comprises:

and adjusting the transmitting power and the transmitting antenna gain based on the association relation among the lowest signal-to-noise ratio, the expected sensing/covering distance and the transmitting parameters to obtain the adjusted transmitting power and the adjusted transmitting antenna gain.

Specifically, the transmitting power may be the transmitting power P _t of the base station, the transmitting antenna gain may be G _t, the terminal may obtain the association relationship between the lowest signal-to-noise ratio, the expected sensing/coverage distance and the transmitting parameter, the duration time T _t of the single pulse and the pulse accumulation number n, and the transmitting parameter at least includes the transmitting power and the transmitting antenna gain.

Optionally, the terminal may determine the perceived coverage distance to be increased, and calculate the adjusted transmit power and the adjusted transmit antenna gain by using the association, the lowest signal-to-noise ratio, the duration of single pulse T _t, the number n of pulse accumulations, and the transmit parameters that do not include the transmit function and the transmit antenna gain.

In this embodiment, through adjustment of the transmission power and the gain of the transmission antenna, the increase of the perceived coverage distance can be realized under the requirement of ensuring the performance index, and the requirement of the target scene on the coverage distance can be better met.

In one embodiment, the sense frame is further used to transmit a continuous wave, as shown in fig. 5, and the method further includes:

Step 502, calculating a coverage blind area of the pulse wave.

Wherein, the blind area of the pulse wave comprises a minimum blind area and a maximum blind area.

The method comprises the steps that a terminal can acquire a range of a sending duration of a pulse wave, the range comprises a minimum value of the sending duration and a maximum value of the sending duration, and correspondingly, the terminal can acquire pulse wave switching time, so that the terminal can calculate based on the minimum value of the sending duration of the pulse wave, the pulse wave switching time and the minimum coverage height to obtain a minimum blind area of the pulse wave, calculate based on the maximum value of the sending duration of the pulse wave, the pulse wave switching time and the minimum coverage height to obtain a maximum blind area of the pulse wave, and the terminal can obtain a coverage blind area of the pulse wave based on the minimum blind area and the maximum blind area.

Step 504, determining a coverage distance of the continuous wave based on the length of the cyclic prefix, the coverage distance of the continuous wave being used to supplement a coverage hole of the pulse wave.

Specifically, the terminal may calculate a product value between the length T _cyc of the cyclic prefix and the sound velocity c, and calculate a quotient between the product value and a first target value, and determine the quotient as the coverage distance of the continuous wave, that is, may calculate the coverage distance R _c：R_c=T_cyc ×c/2 of the continuous wave by the following formula, where the first target value may be 2.

Step 506, adjusting the duration of the single pulse to obtain the adjusted duration of the single pulse under the condition that the coverage distance of the continuous wave is greater than or equal to the coverage blind area of the pulse wave.

Specifically, the terminal can ensure the blind compensation capability of the continuous wave under the condition that the coverage distance of the continuous wave is greater than or equal to the coverage blind area of the pulse wave, based on the blind compensation capability of the continuous wave, the terminal can adjust the duration of the single pulse under the condition that the coverage distance of the continuous wave is greater than or equal to the coverage blind area of the pulse wave, obtain the adjusted duration of the single pulse, and obtain the adjusted universal frame based on the adjusted duration of the single pulse.

In this embodiment, the duration of the single pulse can be adjusted under the condition of blind-supplement capability, so as to ensure the accuracy of adjustment parameters and further improve the transmission performance of the passsense frame.

In one embodiment, the method further comprises:

and transmitting a signal based on the signal transmission mode and the target symbol configuration data corresponding to the sense frame, wherein the signal at least comprises the sense frame. The signaling mode is determined based on the target scene.

Wherein the signaling mode includes one or more of:

in case 1, the first portion of the sense frame transmits a pulse wave and the second portion of the sense frame transmits a continuous wave.

In case 2, the sense frame transmits a pulse wave.

Case 3, the sense frame transmits a continuous wave.

In case 4, the sense frame transmits a pulse wave, and the next sense frame of the sense frame transmits a continuous wave.

Specifically, the terminal may determine the current signal transmission mode based on the requirement of the target scene, and configure the sense frame based on the target symbol configuration data of the sense frame determined in the above embodiment, and transmit the pulse wave, or transmit the continuous wave, or transmit the pulse wave and the continuous wave through the configured sense frame and based on the signal transmission mode. The specific process of transmitting the pulse wave and the continuous wave may be that the terminal transmits the continuous wave through the current sense frame and transmits the pulse wave through the next sense frame of the current sense frame, or that the terminal transmits the continuous wave through a portion of the sense frame and transmits the pulse wave through the remaining portion of the sense frame, etc.

In this embodiment, through the actual requirement of the scene, the signal transmission mode adapted to the scene is determined, so as to realize the integration of the sense of all things, satisfy the multiple sensing requirements of different scenes, and promote the comprehensive sensing capability of the sense of all things frame.

In some embodiments, for example, in the scenes of low altitude, ground, water area and the like, a frame structure integrating communication and perception is needed to realize the integrated capability based on the cellular network, for example, certain resources can be allocated in the communication frame structure to realize the perception function based on acceptable perception resource cost. The perceived waveform may be selected based on the actual scene, and the type of waveform, including pulsed and continuous waves, may be selected based on the actual coverage requirements and performance requirements.

As shown in fig. 6, the pulse wave may be a schematic structure of pulse wave and continuous wave, and the pulse wave may be a time division pulse wave, a half duplex pulse wave, a full-area pulse wave, or a full-area pulse wave. The continuous wave may be transmitted and received simultaneously, full duplex and half duplex, for example, downstream communication, simultaneous transmission and reception, GP, upstream communication. The pulse wave close range sensing has a dead zone, and is suitable for remote sensing. Continuous waves have no near-point perception dead zone, but have serious self-interference and overlarge transmitting power, so that a large amount of signals are leaked from a transmitting end to a receiving end, and the perception performance is influenced. Thus, continuous waves are more suitable for close range sensing where the transmit power is limited.

When the perception coverage distance is primarily considered, the waveform types of continuous waves, pulse waves, continuous waves and pulse waves are needed to be selected according to application scenes. As shown in fig. 7, a continuous wave may be used to achieve close range coverage and a pulsed wave may be used to achieve far range coverage.

The symbol structure configuration method of the sense-of-general frame provided by the embodiment can flexibly configure symbols of the communication sense-of-general frame structure, and meets the flexible requirements of different scenes on the performances such as coverage range, sense resolution, precision and the like. The terminal may determine the desired perceived-coverage range based on the actual needs of the target scene. The coverage distance is affected by the signal transmission power and the antenna gain, but the theoretical upper limit and the lower limit of the coverage distance are determined by the time domain configuration of the signal frame structure.

As shown in fig. 8, the blind spot R _b of the pulse wave depends on the pulse transmission period T _t and the pulse wave/continuous wave switching period T _c. The perceived coverage maximum distance R _max of the pulse wave (the furthest coverage distance of the target scene) depends on the switching time T _c and the length T _r of the pulse wave receiving window.

As shown in fig. 9, the continuous wave has no near-point coverage dead zone, and the maximum coverage distance R _max is dependent on the length T _cyc.R_max =T_cyc xc/2 of the cyclic prefix, so that for the dead zone of perceived coverage and the farthest distance, the symbol length occupied by a single pulse wave and the pulse wave transceiving window can be determined based on theoretical limits of different waveforms.

First, a duty cycle of the perceived symbols is determined and the number of perceived symbols N _sense is determined according to the overhead of the desired perceived resource of the target scene. According to the requirement of the actual application scene on the farthest coverage distance, the capacity of the pulse wave is considered, and the number N _p of symbols occupied by the single pulse wave is determined. The terminal may acquire a symbol in a frame structure with a duration of T _symbol and a number of symbols occupied by a pulse wave of N _p.

For a single pulse, the following association exists:

Pulse transmission time T _t +pulse reception time T _r +2 transmission/reception switching time T _c≤T_symbol×N_p.

R_max=（T_r + T_c)×c/2, c=3×10^8 m/s。

Based on this, it can be determined that the maximum coverage distance R _max of the pulse wave and the dead zone R _b of the pulse wave are calculated by the following formulas:

R_max=(T_symbol×N_p-T_t-T_c)×c/2;

R_b=（T_t+T_c)×c/2。

In this embodiment, the expected/required R _max of the target scene may be obtained, and the number N _p of symbols occupied by one pulse wave may be flexibly set, so as to satisfy the requirements of perceived coverage distances of different scenes. The perceptual performance is affected by the fact that the larger the number of symbols occupied by one pulse, the smaller the number of pulse waves that can be transmitted in one frame period. Therefore, the method provided by the present embodiment is to select the minimum number of symbols that can satisfy the perceived distance. As shown in fig. 10, the number of symbols occupied by one pulse wave may be 1,2,3, and 4, respectively, and the number of pulse waves that can be transmitted by one corresponding sense frame may be represented schematically.

In the case that the number of symbols occupied by one pulse wave is fixed, the pulse wave transmitting position can be adjusted, and as shown in fig. 11, the pulse transmitting window is moved forward, so that the length of the receiving window is increased, and the flexible adjustment of the furthest perceived distance can be realized. The specific adjustment flow may be as shown in fig. 12:

The terminal obtains the spending of the sensing resource and the limiting requirement, determines the duty ratio of the sensing symbols, the number N _sense of the sensing symbols and the total number of the occupied symbols of the pulse wave. The method comprises the steps of determining the length of a pulse wave receiving window based on the requirement of the furthest coverage distance of an actual application scene, determining the length of a pulse wave transmitting window based on the allowable coverage blind area of the actual application scene, determining the transceiving switching time based on hardware capability, further determining the number N _p of symbols occupied by a single pulse wave and realizing the position adjustment of the transceiving window.

Optionally, the perceived coverage distance can be improved while meeting a certain false alarm rate and omission factor by adjusting the transmitting power, the transmitting antenna gain and the like of the base station. In the case where the transmission power and the antenna gain are fixed, as shown in fig. 13, the perceived coverage distance can be increased by increasing the gain by adjusting the single pulse transmission duration T _t and the cumulative number n. At this time, the signal duration may be increased by increasing the number of beam scans in one direction, and the signal transmission length may also be increased. Under the condition of fixed sensing distance, the sensing accuracy can be improved by improving the signal-to-noise ratio. For example, the single pulse transmit duration T _t is doubled and the SNR will be increased by 3dB. Specifically, the minimum signal-to-noise ratio SNR _min requirement can be determined based on the false alarm rate and the omission factor requirement, and the parameter configuration can be performed based on the minimum signal-to-noise ratio SNR _min requirement and the coverage furthest distance requirement, wherein the parameter configuration can be to adjust the transmitting power and the transmitting antenna gain of the base station, and the parameter configuration can also be to adjust the single pulse transmitting time length T _t and the accumulated times n.

Further, as shown in fig. 14, the parameter configuration may be implemented based on specific requirements of sensing accuracy and resolution, specifically, obtaining sensing performance index requirements may include distance accuracy, resolution requirements, speed accuracy, resolution requirements, and maximum speed requirements, determining signal-to-noise ratio requirements based on the distance accuracy, resolution requirements, determining pulse repetition period T _p based on the speed accuracy, resolution requirements, and maximum speed requirements, determining pulse number M based on the speed accuracy, resolution requirements, and determining base station transmit power Pt and transmit antenna gain Gt based on the signal-to-noise ratio requirements.

Specifically, the perceived distance accuracy may be calculated by the following formula:

,

Specifically, the perceived distance resolution may be calculated by the following formula:

,

Specifically, the perceived speed accuracy can be calculated by the following formula:

,

Specifically, the perceived speed resolution may be calculated by the following formula:

,

Specifically, the perceived maximum blur free speed requirement can be calculated by the following formula:

,

wherein B is the signal bandwidth, and the perceived distance accuracy is related to the signal-to-noise ratio. The perceived speed resolution is related to the perceived signal duration τ (M is the number of pulses, T _p is the pulse repetition period), on which the perceived speed accuracy is related to the signal-to-noise ratio. The signal-to-noise ratio requirement is determined according to the requirement of the perceived distance accuracy, and the pulse repetition period (interval) T _p is designed according to the perceived maximum speed requirement. A schematic diagram of the structure of the pulse wave in one frame period is shown in fig. 11. For example, the single pulse duration T _t may be 1-8 microseconds, with the single pulse duration affecting the dead zone and the longer the time the greater the dead zone. However, the larger Tt, the higher the perceived gain of the pulse wave. For every doubling of the pulse duration Tt, the signal to noise ratio will be improved by 3dB.

Based on the above, the symbol length N _p occupied by the final pulse, the single pulse duration T _t, the pulse transceiver window length and position, the pulse repetition number M in one frame period T _f, the pulse repetition interval Tp and the pulse accumulation number N meeting the refresh rate requirement can be determined according to the requirements of performance indexes such as the target scenes with different requirements, the comprehensive perception theory, the false alarm rate, the omission rate, the precision, the resolution and the like.

In a specific low-altitude scene embodiment, the horizontal coverage distance may be 1-1.5km and the coverage height may be 300-600 m. The radial coverage is the furthest distances 1035m, 1150m, 1525m, 1605m, respectively, as shown in fig. 15. For road traffic scenarios, a coverage distance of 2km is typically considered. For offshore and other scenes, where long-distance coverage of 5km or more is generally considered, the receiving window length needs to be increased to raise the upper limit of the perceived distance. The target moving speed is also greatly different in different scenes, and the unmanned aerial vehicle, the automobile and the ship generally have different requirements on the speed measuring capability.

The minimum signal-to-noise ratio SNR _min =13 dB is usually required to be achieved when considering the requirements of the perceived performance indexes such as false alarm rate, omission rate, precision, resolution and the like. The pulse transmission duration is typically 1-4 microseconds, and when the switching time is 1.5 microseconds, the minimum dead zone can be calculated by the following formula (1+1.5) ×300/2=375 m, and the maximum dead zone (4+1.5) ×300/2=825 m. To reduce dead zones, half of the pulses may also be received for perception. The specific pulse wave duration is determined according to the requirements of the perceived speed resolution and accuracy. The furthest coverage distance of the continuous wave can be obtained according to the requirements of the transmission power and the performance of the continuous wave. At this time, the dead zone of the pulse wave is smaller than the farthest distance that the continuous wave can cover.

The symbol structure configuration of the general sense frame provided by the embodiment can realize the symbol configuration of the general sense integrated frame structure under the conditions of different scenes and index requirements, determine the pulse wave symbol length and the pulse wave receiving and transmitting window based on the requirement of a sensing distance range, realize the configuration scheme of balanced signal-to-noise ratio, sensing distance and signal duration under the conditions of different scenes and coarse granularity sensing index requirements, improve comprehensive sensing capability, realize the configuration method of pulse wave pulse duration and pulse repetition period in the general sense integrated frame structure based on the condition of fine granularity index requirements of different scenes, and meet the performance requirement of sensing speed under the condition of meeting the requirement of signal-to-noise ratio, thereby realizing flexible configuration of the general sense integrated frame structure.

It should be understood that, although the steps in the flowcharts of fig. 1-15 are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in FIGS. 1-15 may include multiple steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor do the order in which the steps or stages are performed necessarily performed in sequence, but may be performed alternately or alternately with at least a portion of the steps or stages in other steps or other steps.

In one embodiment, as shown in fig. 16, there is provided a symbol structure configuration apparatus 1600 of a sense frame, including:

A first determining module 1602, configured to determine initial symbol configuration data based on a desired perceived overhead of a target scene, a desired perceived distance, a total number of symbols of a sense frame, and a single symbol duration of the sense frame;

The second determining module 1604 is configured to determine target symbol configuration data of a sense frame based on the performance index requirement of the target scene and the initial symbol configuration data, where the sense frame is at least used for transmitting pulse waves.

In one embodiment, the initial symbol configuration data includes a number of symbols occupied by a single pulse wave, and the first determining module is specifically configured to:

In one embodiment, the performance index further includes a miss rate, a false alarm rate, a coverage distance accuracy, a coverage distance resolution, a perceived speed accuracy, and a perceived speed resolution, and the second determining module is specifically configured to:

calculating a pulse repetition interval based on the desired perceived speed;

In one embodiment, the second determining module is further specifically configured to:

In one embodiment, the apparatus further comprises:

And a third determining module, configured to determine the transmit power and the transmit antenna gain based on the association relationship among the minimum signal-to-noise ratio, the desired perceived/covered distance, and the transmission parameter.

In one embodiment, the passsense frame is further used to transmit a continuous wave, and the apparatus further comprises:

the calculating module is used for calculating the coverage blind area of the pulse wave;

A fourth determining module, configured to determine a coverage distance of a continuous wave based on a length of a cyclic prefix, where the coverage distance of the continuous wave is used to supplement a coverage blind area of the pulse wave;

And the adjusting module is used for adjusting the duration of the single pulse under the condition that the coverage distance of the continuous wave is ensured to be greater than or equal to the coverage blind area of the pulse wave, so as to obtain the adjusted duration of the single pulse.

In one embodiment, the apparatus further comprises:

And the transmitting module is used for transmitting a signal based on a signal transmitting mode and the target symbol configuration data corresponding to the sense frame, wherein the signal at least comprises the sense frame, and the signal transmitting mode is determined based on a target scene.

In one embodiment, the signaling mode includes one or more of the following:

the passsense frame transmits pulse waves;

the passsense frame transmits a continuous wave;

For specific limitations of the symbol structure configuration device of the sense frame, reference may be made to the above limitation of the symbol structure configuration method of the sense frame, and no further description is given here. The above-mentioned symbol structure configuration means of the passthrough frame may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.

Fig. 17 is a schematic structural diagram of a communication device according to an embodiment of the present invention. The communication device 1700 shown in fig. 17 includes at least one processor 1701, memory 1702, and at least one network interface 1704. The various components in communication device 1700 are coupled together by a bus system 1705. It is appreciated that the bus system 1705 is used to facilitate connected communications between these components. The bus system 1705 includes a power bus, a control bus, and a status signal bus in addition to the data bus. But for clarity of illustration, the various buses are labeled as bus system 1705 in fig. 17. In addition, in embodiments of the present invention, a transceiver 1706 is also included, which may be a plurality of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium.

It is to be appreciated that the memory 1702 in embodiments of the present invention can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The nonvolatile memory may be a Read-only memory (ROM), a programmable Read-only memory (ProgrammableROM, PROM), an erasable programmable Read-only memory (ErasablePROM, EPROM), an electrically erasable programmable Read-only memory (ElectricallyEPROM, EEPROM), or a flash memory, among others. The volatile memory may be a random access memory (RandomAccessMemory, RAM) that acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (STATICRAM, SRAM), dynamic random access memory (DYNAMICRAM, DRAM), synchronous dynamic random access memory (SynchronousDRAM, SDRAM), double data rate synchronous dynamic random access memory (DoubleDataRate SDRAM, ddr SDRAM), enhanced synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCHLINKDRAM, SLDRAM), and direct memory bus random access memory (DirectRambusRAM, DRRAM). The memory 1702 of the systems and methods described in embodiments of the present invention is intended to comprise, without being limited to, these and any other suitable types of memory.

In some implementations, the memory 1702 stores elements, executable modules or data structures, or a subset thereof, or an extended set thereof, the operating system 17021. The operating system 17021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks.

In an embodiment of the present invention, the processor 1701 is configured to determine initial symbol configuration data based on a desired perceived cost of a target scene, a desired perceived distance, a total number of symbols of a sense frame, and a single symbol duration of the sense frame by invoking a program or instruction stored in the memory 1702, and the processor 1701 is further configured to determine target symbol configuration data of the sense frame based on performance index requirements of the target scene and the initial symbol configuration data, the sense frame being at least used for transmitting pulse waves.

Some or all of the methods disclosed in the embodiments of the present invention described above may also be applied to the processor 1701, or implemented by the processor 1701 in conjunction with other elements (e.g., a transceiver). The processor 1701 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the methods described above may be performed by integrated logic circuitry in hardware or instructions in software in the processor 1701. The processor 1701 may be a general purpose processor, a digital signal processor (DigitalSignalProcessor, DSP), an application specific integrated circuit (application specific IntegratedCircuit, ASIC), an off-the-shelf programmable gate array (FieldProgrammableGateArray, FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. The disclosed methods, steps, and logic blocks in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in the memory 1702 and the processor 1701 reads information in the memory 1702 and performs the steps of the method described above in conjunction with its hardware.

It is to be understood that the embodiments of the application described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For a hardware implementation, the processing units may be implemented within one or more application specific integrated circuits (ApplicationSpecificIntegratedCircuits, ASIC), digital signal processors (DigitalSignalProcessing, DSP), digital signal processing devices (DSPDEVICE, DSPD), programmable logic devices (ProgrammableLogicDevice, PLD), field programmable gate arrays (Field-ProgrammableGateArray, FPGA), general purpose processors, controllers, microcontrollers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described in embodiments of the present invention may be implemented by modules (e.g., procedures, functions, and so on) that perform the functions described in embodiments of the present invention. The software codes may be stored in memory and executed by the processor 1701. The memory may be implemented within the processor 1701 or external to the processor 1701.

In one embodiment, a computer readable storage medium is provided having a computer program stored thereon which when executed by a processor performs steps in an embodiment of the application.

Embodiments of the present application also provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the steps of embodiments of the present application.

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, or the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory. By way of illustration, and not limitation, RAM can be in various forms such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), etc.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims

1. A method for configuring the symbol structure of a synesthetic frame, characterized in that the method comprises:

Based on the expected sensing overhead, expected sensing distance, total number of symbols in the synesthetic frame, and duration of a single symbol in the synesthetic frame, initial symbol configuration data is determined; the initial symbol configuration data includes the number of symbols occupied by the monopulse wave.

Based on the performance requirements of the target scene and the initial symbol configuration data, the target symbol configuration data of the sensing frame is determined. The performance requirements include at least the expected sensing speed of the target scene. The target symbol configuration data includes the number of symbols occupied by the single pulse wave, the transmission position of the pulse wave, the transmission window length of the pulse wave, the reception window length of the pulse wave, the duration of the single pulse, the cumulative number of pulses, the pulse repetition interval, and the number of pulse repetitions. The sensing frame is used to transmit at least one or more of pulse waves and continuous waves.

The initial symbol configuration data is determined based on the expected perception overhead, expected perception distance, total number of symbols in the synesthetic frames, and duration of a single symbol in the synesthetic frames for the target scene. This includes:

Based on the expected sensing overhead of the target scene, the proportion of sensing symbols is determined; based on the proportion of sensing symbols and the total number of symbols in the synaptic frame, the number of sensing symbols is determined; based on the reception duration and switching time of the pulse wave, the number of target symbols occupied by the single pulse wave that matches the expected farthest coverage distance of the target scene is determined.

2. The method according to claim 1, wherein the initial symbol configuration data includes at least the number of sensing symbols, and the initial symbol configuration data further includes the number of symbols occupied by continuous waves and/or the number of symbols occupied by single-pulse waves.

3. The method according to claim 2, wherein the switching time is determined based on hardware attributes, and the receiving duration is pre-configured based on the target scene.

4. The method according to claim 3, wherein the performance indicators further include false alarm rate, false alarm rate, coverage distance accuracy, coverage distance resolution, sensing speed accuracy, and sensing speed resolution; the determination of the target symbol configuration data of the synesthetic frame based on the performance indicator requirements of the target scene and the initial symbol configuration data includes:

Based on the expected sensing distance of the target scene, the transmission position of the pulse wave and the length of the receiving window of the pulse wave are determined.

The transmission window length of the pulse wave is determined based on the coverage blind zone corresponding to the target scene.

Based on the missed detection rate and false alarm rate, the duration of a single pulse and the cumulative number of pulses are determined, wherein the cumulative number of pulses is the cumulative number that meets the refresh rate requirement;

Calculate the pulse repetition interval based on the desired sensing speed;

Based on the sensing speed accuracy and sensing speed resolution, the number of pulse repetitions is determined, which is the number of times the pulse wave is repeated within a single synesthesia frame;

The data for configuring the target symbol is determined by specifying the number of symbols occupied by the single pulse wave, the transmission position of the pulse wave, the transmission window length of the pulse wave, the reception window length of the pulse wave, the duration of the single pulse, the cumulative number of pulses, the pulse repetition interval, and the number of pulse repetitions.

5. The method according to claim 4, characterized in that, determining the duration of a single pulse and the cumulative number of pulses based on the missed detection rate and false alarm rate includes:

Based on the aforementioned false alarm rate and false alarm rate, determine the minimum signal-to-noise ratio;

The duration of a single pulse and the number of pulses are determined based on the correlation between the minimum signal-to-noise ratio, the desired sensing/coverage distance, and the transmission parameters.

6. The method according to claim 5, characterized in that the method further comprises:

Based on the correlation between the minimum signal-to-noise ratio, the desired sensing/coverage distance, and the transmission parameters, the transmit power and transmit antenna gain are adjusted to obtain the adjusted transmit power and transmit antenna gain.

7. The method according to claim 5, wherein the inductive frame is further used to transmit a continuous wave, and the method further comprises:

Calculate the coverage blind zone of the pulse wave;

The coverage distance of the continuous wave is determined based on the length of the cyclic prefix, and the coverage distance of the continuous wave is used to supplement the coverage blind spot of the pulse wave;

While ensuring that the coverage distance of the continuous wave is greater than or equal to the coverage blind zone of the pulse wave, the duration of the single pulse is adjusted to obtain the adjusted duration of the single pulse.

8. The method according to claim 1, characterized in that the method further comprises:

Based on the signal transmission mode and the target symbol configuration data corresponding to the synesthetic frame, a signal is transmitted, the signal containing at least a synesthetic frame; the signal transmission mode is determined based on the target scene.

9. The method according to claim 8, wherein the signal transmission mode includes one or more of the following:

The first part of the synesthetic frame transmits a pulse wave, and the second part of the synesthetic frame transmits a continuous wave;

The synergistic frame transmits pulse waves;

The synesthetic frame transmits a continuous wave;

The synesthetic frame sends a pulse wave, and the next synesthetic frame sends a continuous wave.

10. A symbol structure configuration device for a synesthetic frame, characterized in that the device comprises:

The first determining module is used to determine initial symbol configuration data based on the expected sensing overhead of the target scene, the expected sensing distance, the total number of symbols in the synesthetic frame, and the duration of a single symbol in the synesthetic frame; the initial symbol configuration data includes the number of symbols occupied by the monopulse wave.

The second determining module is used to determine the target symbol configuration data of the synergistic frame based on the performance index requirements of the target scene and the initial symbol configuration data. The target symbol configuration data includes the number of symbols occupied by the single pulse wave, the transmission position of the pulse wave, the transmission window length of the pulse wave, the reception window length of the pulse wave, the duration of the single pulse, the cumulative number of pulses, the pulse repetition interval, and the number of pulse repetitions. The synergistic frame is used to transmit pulse waves at least.

The first determining module is specifically used to determine the proportion of sensing symbols based on the expected sensing overhead of the target scene; to determine the number of sensing symbols based on the proportion of sensing symbols and the total number of symbols in the synaptic frame; and to determine the number of target symbols occupied by the single pulse wave that matches the expected farthest coverage distance of the target scene based on the reception duration and switching time of the pulse wave.

11. A communication device, characterized in that it comprises: a processor;

The processor is configured to determine initial symbol configuration data based on the expected sensing overhead of the target scene, the expected sensing distance, the total number of symbols in the synesthetic frame, and the duration of a single symbol in the synesthetic frame; the initial symbol configuration data includes the number of symbols occupied by a single pulse wave.

The processor is further configured to determine the target symbol configuration data of the synesthetic frame based on the performance requirements of the target scene and the initial symbol configuration data. The target symbol configuration data includes the number of symbols occupied by the single pulse wave, the transmission position of the pulse wave, the transmission window length of the pulse wave, the reception window length of the pulse wave, the duration of the single pulse, the cumulative number of pulses, the pulse repetition interval, and the number of pulse repetitions. The synesthetic frame is used to transmit pulse waves at least.

The processor is further specifically configured to determine the proportion of sensing symbols based on the expected sensing overhead of the target scene; determine the number of sensing symbols based on the proportion of sensing symbols and the total number of symbols in the synaptic frames; and determine the number of target symbols occupied by the single pulse wave that matches the expected farthest coverage distance of the target scene based on the reception duration and switching time of the pulse wave.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that, when the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 9.

13. A computer program product comprising a computer program, characterized in that, when executed by a processor, the computer program implements the steps of the method according to any one of claims 1 to 9.