WO2024259709A1 - Communication method, first node, second node, and communication system - Google Patents

Abstract

The present disclosure relates to a communication method, a first node, a second node, and a communication system. The communication method comprises: determining first information, and determining a first signal as a path loss reference signal of a second signal, the second signal being used for sensing a sensing target body. According to the present disclosure, the transmitting power of a second signal can be determined on the basis of path loss, thereby improving the communication sensing precision.

Description

Communication method, first node, second node and communication system Technical Field

The present disclosure relates to the field of communication technology, and in particular to a communication method, a first node, a second node, and a communication system.

Background Art

In the communication sensing technology currently being studied, the sensing scene usually includes sensing nodes and sensing targets. The sensing node needs to sense the distance of the sensing target from the sensing node by sending and/or receiving sensing signals.

Summary of the invention

The perception node's perception of the target object has low perception accuracy.

The embodiments of the present disclosure provide a communication method, a first node, a second node, and a communication system.

According to a first aspect of an embodiment of the present disclosure, a communication method is proposed, the method comprising: determining a first signal, determining the first signal as a path loss reference signal of a second signal, wherein the second signal is used to sense a sensing target object.

According to the second aspect of an embodiment of the present disclosure, a communication method is proposed, which includes: receiving a second signal, the second signal is used to perceive a perception target, the transmission power of the second signal is determined based on a path loss reference signal of the second signal, and the path loss reference signal of the second signal is the first signal.

According to the third aspect of an embodiment of the present disclosure, a communication method is proposed, comprising: a first node determines a first signal, determines the first signal as a path loss reference signal of a second signal, and the second signal is used to perceive a perception target body; a second node receives the second signal.

According to a fourth aspect of an embodiment of the present disclosure, a first node is proposed, comprising: a processing module, determining a first signal, determining the first signal as a path loss reference signal of a second signal, wherein the second signal is used to perceive a perception target body.

According to the fifth aspect of an embodiment of the present disclosure, a second node is proposed, including: a transceiver module, receiving a second signal, the second signal is used to perceive a perception target, the transmission power of the second signal is determined based on the second signal based on a path loss reference signal of the second signal, and the path loss reference signal of the second signal is the first signal.

According to a sixth aspect of an embodiment of the present disclosure, a first node is proposed, comprising: one or more processors; the first node is used to execute the communication method described in the first aspect.

According to a seventh aspect of an embodiment of the present disclosure, a second node is proposed, comprising: one or more processors; wherein the second node is used to execute the communication method described in the second aspect.

According to an eighth aspect of an embodiment of the present disclosure, a communication system is proposed, comprising a first node and a second node, wherein the first node is configured to implement the communication method described in the first aspect, and the second node is configured to implement the communication method described in the second aspect.

According to a ninth aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the communication method described in the first aspect or the second aspect.

The communication method provided by the embodiment of the present disclosure can clarify the path loss reference signal of the second signal by determining the first signal and determining the first signal as the path loss reference signal of the second signal, thereby determining the path loss of the second signal for sensing the target object, and determining the transmission power of the second signal based on the path loss, thereby improving the accuracy of communication perception.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for describing the embodiments are introduced below. The following drawings are only some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

FIG. 2 is a schematic diagram of interaction of a communication method according to an embodiment of the present disclosure.

FIG. 3A is a flow chart of a communication method according to an embodiment of the present disclosure.

FIG3B is a flow chart of a communication method according to an embodiment of the present disclosure.

FIG. 3C is a flow chart of a communication method according to an embodiment of the present disclosure.

FIG. 4A is a flow chart of a communication method according to an embodiment of the present disclosure.

FIG4B is a flow chart of a communication method according to an embodiment of the present disclosure.

FIG5 is a flow chart of a communication method according to an embodiment of the present disclosure.

FIG6A is a schematic diagram of a first communication device according to an embodiment of the present disclosure.

FIG6B is a schematic diagram of a second communication device according to an embodiment of the present disclosure.

Fig. 7A is a schematic diagram of a communication device according to an exemplary embodiment.

FIG. 7B is a schematic diagram showing a chip structure according to an exemplary embodiment.

DETAILED DESCRIPTION

The embodiments of the present disclosure provide a communication method, a first node, a second node, and a communication system.

In a first aspect, an embodiment of the present disclosure proposes a communication method, which includes: determining a first signal, determining the first signal as a path loss reference signal of a second signal, and the second signal is used to perceive a perception target.

In the above embodiment, by determining the first signal and determining the first signal as the path loss reference signal of the second signal, the path loss reference signal of the second signal can be clarified, and then the path loss of the second signal for sensing the target object can be determined, and the transmission power of the second signal can be determined based on the path loss, thereby improving the accuracy of communication perception.

In combination with some embodiments of the first aspect, in some embodiments, determining the first signal includes: receiving first information, where the first information includes the first signal information.

In the above embodiment, the first signal information is determined by receiving the first information, and the first signal information can be determined, configured and/or indicated by other devices.

In combination with some embodiments of the first aspect, in some embodiments, the first signal includes at least one of the following: a synchronization signal block; a channel state information reference signal; a sounding reference signal; a positioning reference signal; a sidelink positioning reference signal; a sidelink synchronization signal block; a sidelink channel state information reference signal; a sidelink sounding reference signal; a demodulation reference signal of a physical sidelink shared channel; a demodulation reference signal of a physical sidelink control channel; or a new reference signal for sensing a sensing target.

In the above embodiment, the first signal includes one or more of the above signals, so that the first signal can be communicated and transmitted in at least one of the following scenarios: a scenario of communication between a terminal and a network device, a scenario of communication between terminals, and a scenario of communication between network devices. The network device includes one or more of the following: an access network device and a core network device.

In combination with some embodiments of the first aspect, in some embodiments, determining the first signal includes at least one of the following: obtaining wireless resource control signaling sent by an access network device, the wireless resource control signaling including the first signal information; obtaining media access control control unit signaling sent by the access network device, the media access control control unit signaling is used to determine the first signal information; obtaining downlink control information sent by the access network device, the downlink control information is used to determine the first signal information; obtaining the first signal information from a protocol; obtaining the first signal information from an interface with a perception function entity; obtaining wireless resource control signaling for sidelink communication, the wireless resource control signaling for sidelink communication including the first signal information; obtaining media access control control unit signaling for sidelink communication, the media access control control unit signaling for sidelink communication is used to determine the first signal information; obtaining direct link control information for sidelink communication, the direct link control information for sidelink communication is used to determine the first signal information; obtaining a physical sidelink shared channel for determining the first signal information; obtaining a physical sidelink control channel for determining the first signal information.

In combination with some embodiments of the first aspect, in some embodiments, the physical sidelink shared channel satisfies at least one of the following: the physical sidelink shared channel includes a resource identifier of the first signal, and the first signal is a demodulation reference signal (Demodulation Reference Signal, DMRS) corresponding to the physical sidelink shared channel.

In combination with some embodiments of the first aspect, in some embodiments, the physical sidelink control channel satisfies at least one of the following: the physical sidelink control channel includes a resource identifier of the first signal, and the first signal is a DMRS corresponding to the physical sidelink control channel.

In the above embodiment, the first information can be sent through the above instruction sent by the access network device, which can be applicable to a variety of scenarios, such as implementing the configuration and/or indication of the first signal based on the access network device, and multiplexing the existing signaling to send the first information, thereby saving information sending resources. For another example, the configuration and/or indication of the first signal information is implemented based on the perception function entity, and the first signal information is sent through the interface between the perception function entity and the node that sends the second signal. It can be sent based on an existing protocol to avoid creating a separate protocol for sending the first signal information, thereby saving information sending resources. For another example, it can also be sent based on a newly defined protocol to better implement the perception function. For another example, the configuration and/or indication of the first signal can be based on side chain communication.

In combination with some embodiments of the first aspect, in some embodiments, the method also includes: determining that the first signal fails, and determining a third signal, and determining the third signal as a path loss reference signal of the second signal; the third signal includes at least one of the following: a synchronization signal block for obtaining a main information block; a sidelink reference signal, and the sidelink reference signal is sent by a node receiving the second signal.

In the above embodiment, in response to the failure of the first signal, a third signal is determined based on the above signal, and the determined third signal is used as a path loss reference signal of the second signal for communication, thereby avoiding the use of the failed first signal for communication, thereby improving the communication quality.

In combination with some embodiments of the first aspect, in some embodiments, the number of the sidelink reference signals is multiple, a first reference signal is determined, and the first reference signal is used as the third signal, and the first reference signal is a reference signal whose signal strength or signal quality meets the conditions among the multiple sidelink reference signals.

In the above embodiment, the third signal can be determined based on the reference signal of the sidelink. Communicate and thus improve the quality of communication.

In combination with some embodiments of the first aspect, in some embodiments, determining that the first signal has failed includes at least one of the following: being unable to accurately measure the first signal, determining that the first signal has failed; the signal strength of the first signal is less than a second threshold, determining that the first signal has failed; the signal quality of the first signal is less than a third threshold, determining that the first signal has failed; a change in the signal strength of the first signal is greater than a fourth threshold, determining that the first signal has failed, the signal strength change being a change between the signal strength measured when the first signal is configured and the signal strength measured at the current time; a change in the signal quality of the first signal is greater than a fifth threshold, determining that the first signal has failed.

In the above embodiment, the method for determining the failure of the first signal is clarified, based on which the result of determining the failure of the first signal can be made more accurate, thereby improving the communication quality.

In conjunction with some embodiments of the first aspect, in some embodiments, the first signal includes at least one of the following:

Synchronization signal block used to obtain the master information block; sidelink reference signal.

In the above embodiment, the node sending the second signal may autonomously determine the first signal based on the above signal.

In combination with some embodiments of the first aspect, in some embodiments, the method also includes: the number of the sidelink reference signals is multiple, determining a first reference signal, and using the first reference signal as the first signal, the first reference signal being a reference signal whose signal strength or signal quality meets the conditions among the multiple sidelink reference signals.

In combination with some embodiments of the first aspect, in some embodiments, at least one of the following conditions is satisfied between the node sending the second signal and the node receiving the second signal: the node sending the second signal is the first terminal, and the node receiving the second signal is the first terminal or the second terminal; the node sending the second signal is the second terminal, and the node receiving the second signal is the first access network device; the node sending the second signal is the first access network device, and the node receiving the second signal is the second terminal; the node sending the second signal is the second access network device, and the node receiving the second signal is the first access network device or the second access network device.

In the above embodiment, the determination of the path loss reference signal in multiple sensing modes is implemented.

In combination with some embodiments of the first aspect, in some embodiments, the second signal includes at least one of the following: a positioning reference signal PRS (Positioning Reference Signal, PRS); a sounding reference signal SRS (Channel Sounding Reference Signal, SRS); a sidelink positioning reference signal SL-PRS (Sidelink Positioning Reference Signal, SL-PRS); a sidelink sounding reference signal (Sidelink Sounding Reference Signal, SL-SRS); a positioning reference signal PRS between access network devices; a sounding reference signal SRS between access network devices; a new reference signal for sensing the target object.

In the above embodiment, the second signal may be a multi-type reference signal, so as to realize the perception of the target body based on the multi-type reference signals.

In the above embodiment, the second signal includes one or more of the above signals, so that the second signal can be transmitted and communicated in scenarios where the terminal communicates with the network device, between terminals, and between network devices.

In combination with some embodiments of the first aspect, in some embodiments, at least one of the first terminal and the second terminal is in any one of the following states: Radio Resource Control (RRC) connected state; RRC inactive state; RRC idle state.

In the above embodiment, the method for determining the path loss reference signal is clarified for various communication states of the terminal, which can improve the communication performance.

In combination with some embodiments of the first aspect, in some embodiments, the method further includes: determining a transmission power for sending the second signal based on the path loss reference signal.

In the above embodiment, sending the second signal based on the path loss reference signal of the second signal can accurately determine the transmission power of the second signal, thereby improving the success rate of sending the second signal and improving the accuracy of communication perception.

In combination with some embodiments of the first aspect, in some embodiments, the sensing the perception target body includes: sensing the perception target using the second signal reflected by the perception target body.

In the above embodiment, the sensing receiving node receives the second signal reflected by the sensing target body, and measures the second signal to obtain a measurement result.

In a second aspect, an embodiment of the present disclosure proposes a communication method, including: receiving a second signal, wherein the transmission power of the second signal is determined based on a path loss reference signal of the second signal, and the path loss reference signal of the second signal is the first signal.

In the above embodiment, the method clarifies that the path loss reference signal of the second signal is the first signal, and can determine the path loss of the second signal for sensing the sensing target based on the first signal, thereby improving the accuracy of communication perception.

In combination with some embodiments of the second aspect, in some embodiments, the first signal is determined based on first information, and the first information includes the first signal information.

In conjunction with some embodiments of the second aspect, in some embodiments, the first signal includes at least one of the following: a synchronization signal block; Channel state information reference signal; sounding reference signal; positioning reference signal; sidelink positioning reference signal; sidelink synchronization signal block; sidelink channel state information reference signal; sidelink sounding reference signal; demodulation reference signal of physical sidelink shared channel; demodulation reference signal of physical sidelink control channel; new reference signal for sensing target objects.

In combination with some embodiments of the second aspect, in some embodiments, the first signal is acquired based on at least one of the following: acquired based on wireless resource control signaling sent by an access network device, the wireless resource control signaling includes the first signal information; acquired based on media access control control unit signaling sent by the access network device, the media access control control unit signaling is used to determine the first signal information; acquired based on downlink control information sent by the access network device, the downlink control information is used to determine the first signal information; acquired based on a protocol; acquired based on an interface between perception function entities; acquired based on wireless resource control signaling for sidelink communication, the wireless resource control signaling for sidelink communication includes the first signal information; acquired based on media access control control unit signaling for sidelink communication, the media access control control unit signaling for sidelink communication is used to determine the first signal information; acquired based on direct link control information for sidelink communication, the direct link control information for sidelink communication is used to determine the first signal information; acquired based on a physical sidelink shared channel used to determine the first signal information; acquired based on a physical sidelink control channel used to determine the first signal information.

In combination with some embodiments of the second aspect, in some embodiments, the first signal is determined based on a physical sidelink shared channel of the first signal information, including one or more of the following: the physical sidelink shared channel includes a resource identifier of the first signal, or the DMRS corresponding to the physical sidelink shared channel is determined to be the first signal.

In combination with some embodiments of the second aspect, in some embodiments, the first signal is determined based on a physical sidelink control channel of the first signal information, including one or more of the following: the physical sidelink control channel includes a resource identifier of the first signal, or the DMRS corresponding to the physical sidelink control channel is determined to be the first signal.

In combination with some embodiments of the second aspect, in some embodiments, the method also includes: the first signal fails, and a third signal is determined, and the third signal is determined as a path loss reference signal of the second signal, and the third signal includes at least one of the following: a synchronization signal block for obtaining a main information block; a sidelink reference signal, and the sidelink reference signal is sent by a node of the second signal.

In combination with some embodiments of the second aspect, in some embodiments, the number of the sidelink reference signals is multiple, the third signal is the first reference signal, and the first reference signal is a reference signal whose signal strength or signal quality meets the conditions among the multiple sidelink reference signals.

In combination with some embodiments of the second aspect, in some embodiments, the method also includes: the number of the sidelink reference signals is multiple, the first signal is the first reference signal, and the first reference signal is a reference signal whose signal strength or signal quality meets the conditions among the multiple sidelink reference signals.

In combination with some embodiments of the second aspect, in some embodiments, the failure of the first signal includes at least one of the following: the first signal cannot be accurately measured, and the first signal fails; the signal strength of the first signal is less than a second threshold, and the first signal fails; the signal quality of the first signal is less than a third threshold, and the first signal fails; the signal strength change of the first signal is greater than a fourth threshold, and the first signal fails, and the signal strength change is the change value between the signal strength measured when the first signal is configured and the signal strength measured at the current time; the signal quality change of the first signal is greater than a fifth threshold, and it is determined that the first signal has failed.

In combination with some embodiments of the second aspect, in some embodiments, the first signal includes at least one of the following: a synchronization signal block for obtaining a master information block; a sidelink reference signal.

In combination with some embodiments of the second aspect, in some embodiments, the number of the sidelink reference signals is multiple, the first signal is the first reference signal, and the first reference signal is a reference signal whose signal strength or signal quality meets the conditions among the multiple sidelink reference signals.

In combination with some embodiments of the second aspect, in some embodiments, at least one of the following conditions is satisfied between the node sending the second signal and the node receiving the second signal: the node sending the second signal is the first terminal, and the node receiving the second signal is the first terminal or the second terminal; the node sending the second signal is the second terminal, and the node receiving the second signal is the first access network device; the node sending the second signal is the first access network device, and the node receiving the second signal is the second terminal; the node sending the second signal is the second access network device, and the node receiving the second signal is the first access network device or the second access network device.

In combination with some embodiments of the second aspect, in some embodiments, the second signal includes at least one of the following: a positioning reference signal; a detection reference signal; a sidelink positioning reference signal; a sidelink detection reference signal; a positioning reference signal between access network devices; a detection reference signal between access network devices; a new reference signal for sensing the target object.

In conjunction with some embodiments of the second aspect, in some embodiments, at least one of the first terminal and the second terminal is in any of the following situations: It refers to a state: radio resource control RRC connected state; RRC inactive state; RRC idle state.

In combination with some embodiments of the second aspect, in some embodiments, the sensing the perception target body includes: sensing the perception target using the second signal reflected by the perception target body.

In the above embodiment, the sensing receiving node receives the second signal reflected by the sensing target body, and measures the second signal to obtain a measurement result.

In combination with some embodiments of the second aspect, in some embodiments, the method also includes: determining the measurement value of the second signal based on at least one of the following: Reference Signal Received Power (RSRP); Reference Signal Received Power (RSRP, per path); Reference Signal Received Quality (RSRQ); Signal-to-Interference-plus-Noise Ratio (SINR); arrival angle of the second signal; departure angle of the second signal; arrival time of the second signal; arrival time difference of the second signal, wherein the arrival time difference is the difference between the arrival time of the second signal at the receiving node of the second signal and a preset reference time, or the arrival time difference is the difference between the arrival times of different second signals at the receiving node of the second signal; reception and transmission time difference of the second signal; the distance between the perception target and the node sending the second signal; the distance between the perception target and the node receiving the second signal; the moving speed of the perception target; and the Doppler frequency deviation of the second signal.

In the above embodiment, the relevant parameters as the measurement value of the second signal are clarified, so that the measurement result of the second signal can be more accurate.

In a third aspect, an embodiment of the present disclosure provides a communication method, comprising: a first device determines a first signal, determines the first signal as a path loss reference signal of a second signal, and the second signal is used to perceive a perception target body; a second node receives the second signal.

In a fourth aspect, an embodiment of the present disclosure provides a first node, comprising: a processing module, determining a first signal, determining the first signal as a path loss reference signal of a second signal, wherein the second signal is used to sense a sensing target. The first node is used to execute the first aspect and the optional implementation of the first aspect.

In a fifth aspect, an embodiment of the present disclosure provides a second node, a transceiver module, which receives a second signal, wherein the second signal is used to sense a sensing target, the second signal is received based on a path loss reference signal of the second signal, and the transmission power of the second signal is determined based on the path loss reference signal of the second signal, and the path loss reference signal of the second signal is the first signal. The second node is used to execute the second aspect and the optional implementation of the second aspect.

In a sixth aspect, an embodiment of the present disclosure provides a first node, comprising: one or more processors; wherein the first node is used to execute the first aspect and an optional implementation method of the first aspect.

In a seventh aspect, an embodiment of the present disclosure provides a second node, comprising: one or more processors; wherein the second node is used to execute the second aspect and the optional implementation method in the second aspect.

In an eighth aspect, an embodiment of the present disclosure provides a communication system, comprising: a first node and a second node, wherein the first node is configured to implement the method described in the first aspect and the optional implementation of the first aspect, and the second node is configured to implement the method described in the second aspect and the optional implementation of the second aspect.

In a ninth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the first aspect and the optional implementation manner of the first aspect.

In a tenth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the first aspect and the optional implementation manner of the first aspect.

In an eleventh aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the first aspect and the optional implementation manner of the first aspect.

In a twelfth aspect, an embodiment of the present disclosure provides a chip or a chip system. The chip or chip system includes a processing circuit configured to execute the method described in the method described in the first aspect and the optional implementation of the first aspect.

It can be understood that the above-mentioned terminal, access network device, first network element, second network element, core network device, communication system, storage medium, program product, computer program, chip or chip system are all used to execute the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method, which will not be repeated here.

The embodiments of the present disclosure provide a communication method, a first node, a second node, and a communication system. In some embodiments, the terms such as communication method and information processing method can be replaced with each other, the terms such as device and first node or second node can be replaced with each other, and the terms such as information processing system and communication system can be replaced with each other.

The embodiments of the present disclosure are not exhaustive, but are only illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined, for example, some or all of the steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

In each embodiment of the present disclosure, unless otherwise specified or there is a logical conflict, the terms and/or descriptions between the embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form a new embodiment based on their internal logical relationships.

The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular form, such as "a", "an", "the", "above", "said", "aforementioned", "this", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun after the article may be understood as a singular expression or a plural expression.

In the embodiments of the present disclosure, “plurality” refers to two or more.

In some embodiments, the terms "at least one of", "one or more", "a plurality of", "multiple", etc. can be used interchangeably.

In some embodiments, "at least one of A and B", "A and/or B", "A in one case, B in another case", "in response to one case A, in response to another case B", etc., may include the following technical solutions according to the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). When there are more branches such as A, B, C, etc., the above is also similar.

In some embodiments, the recording method of "A or B" may include the following technical solutions according to the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). When there are more branches such as A, B, C, etc., the above is also similar.

The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects, and do not constitute restrictions on the position, order, priority, quantity or content of the description objects. The statement of the description object refers to the description in the context of the claims or embodiments, and should not constitute unnecessary restrictions due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields", and the "first" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number, and can be one or more. Taking the "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes may be the same or different. For example, if the description object is "device", then the "first device" and the "second device" may be the same device or different devices, and their types may be the same or different. For another example, if the description object is "information", then the "first information" and the "second information" may be the same information or different information, and their contents may be the same or different.

In some embodiments, “including A”, “comprising A”, “used to indicate A”, and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

In some embodiments, terms such as "in response to ...", "in response to determining ...", "in the case of ...", "at the time of ...", "when ...", "if ...", "if ...", etc. can be used interchangeably.

In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not lower than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "no more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

In some embodiments, devices and equipment may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station (radio base station)", "fixed station" and in some embodiments may also be understood as "node", "access point (access point)", "transmission point (TP)", "reception point (RP)", "transmission and/or reception point (transmission/reception point, TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (bandwidth part, BWP)", etc.

In some embodiments, a “terminal” or “terminal device” may be referred to as a “user equipment (UE)”, a “user terminal (user terminal)”, a “mobile station (MS)”, a “mobile terminal (MT)”, a subscriber station (subscriber station), a mobile unit (mobile unit), a subscriber unit (subscriber unit), Wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.

In some embodiments, acquisition of data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

In some embodiments, data, information, etc. may be obtained with the user's consent.

In addition, each element, each row, or each column in the table of the embodiments of the present disclosure may be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns may also be implemented as an independent embodiment.

FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

As shown in Figure 1, the communication system 100 includes a terminal 101, an access network device 102, and a core network device 103.

In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited to these.

In some embodiments, the access network device 102 is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved Node B (eNB), a next generation evolved Node B (ng-eNB), a next generation Node B (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

In some embodiments, the technical solution of the present disclosure may be applicable to the Open RAN architecture. In this case, the interfaces between access network devices or within access network devices involved in the embodiments of the present disclosure may become internal interfaces of Open RAN, and the processes and information interactions between these internal interfaces may be implemented through software or programs.

In some embodiments, the access network device may be composed of a centralized unit (central unit, CU) and a distributed unit (distributed unit, DU), wherein the CU may also be called a control unit (control unit). The CU-DU structure may be used to split the protocol layer of the access network device, with some functions of the protocol layer being centrally controlled by the CU, and the remaining part or all of the functions of the protocol layer being distributed in the DU, and the DU being centrally controlled by the CU, but not limited to this.

In some embodiments, the core network device 103 may be a device, including the first network element 1031, etc., or may be multiple devices or a group of devices. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

In some embodiments, the first network element 1031 may be a sensing function entity. The sensing function entity is used for at least one of the following: configuring sensing signal resources, receiving sensing signal measurement values, and calculating the position and speed of a sensing target.

In some embodiments, the first network element 1031 is configured to send a perception reference signal.

In some embodiments, the first network element 1031 is configured to receive a perception reference signal.

In some embodiments, the first network element 1031 is used to participate in initialization access of the terminal.

In some embodiments, the first network element 1031 is used to participate in the location update of the terminal.

In some embodiments, the first network element 1031 is used to implement external access to network element functions and data.

In some embodiments, the first network element 1031 may be independent of the core network device 103 .

In some embodiments, the first network element 1031 may be a part of the core network device 103 .

It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. A person of ordinary skill in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or part of the subject, but are not limited thereto. The subjects shown in FIG1 are examples, and the communication system may include all or part of the subjects in FIG1 , or may include other subjects other than FIG1 , The number and form of the subjects are arbitrary, each subject can be physical or virtual, the connection relationship between the subjects is illustrative, the subjects can be connected or disconnected, and the connection can be in any way, which can be direct or indirect, and can be wired or wireless.

The embodiments of the present disclosure may be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, the fourth generation mobile communication system (4G), the fifth generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access ... The present invention relates to wireless communication systems such as LTE, Wi-Fi (Registered Trademark), GSM (Registered Trademark), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (Registered Trademark)), IEEE 802.16 (WiMAX (Registered Trademark)), IEEE 802.20, Ultra-Wide Band (UWB), Bluetooth (Registered Trademark), Public Land Mobile Network (PLMN) network, Device-to-Device (D2D) system, Machine-to-Machine (M2M) system, Internet of Things (IoT) system, Vehicle-to-Everything (V2X), systems using other communication methods, and next-generation systems expanded therefrom. In addition, a combination of multiple systems (for example, a combination of LTE or LTE-A with 5G, etc.) may also be used.

Communication-awareness technology is an intelligent communication technology that aims to improve the performance of communication equipment, networks and systems. This technology achieves more efficient, reliable and secure communication transmission by sensing, understanding and adapting to various conditions in the communication environment. Communication-awareness technology can be applied to many fields, including wireless communication, mobile communication, Internet of Things, satellite communication, etc.

Communication perception technology can perceive and analyze various factors in the communication environment in real time, so as to make corresponding optimization and adjustments. Taking node perception in perception communication technology as an example, node perception can obtain and analyze the information of communication nodes in real time, such as node location, speed, available resources, etc., to improve communication performance and resource utilization. The nodes can be understood as perception nodes or other nodes besides perception nodes.

In the embodiments of the present disclosure, for the research on communication perception technology, the main scenarios include perception nodes and perception targets. The perception target can be understood as an object that needs to be perceived, such as a vehicle, a drone, etc. The perception node is a node that needs to perceive the perception target. The perception node can be a network device or a terminal. In the scenario, the perception node needs to perceive one or more position information of the perception target from the perception node, including distance, angle, moving speed, etc.

In the embodiment of the present disclosure, the sensing node sends a sensing signal to the sensing target, and then the receiving node of the sensing signal receives the sensing signal reflected by the sensing target to obtain corresponding sensing information, such as location information. In the embodiment of the present disclosure, the sensing signal is referred to as the second signal, and the sensing node can also be understood as a node that sends the second signal, or a sensing sending node. The receiving node of the sensing signal can also be referred to as a node that receives the second signal, or a sensing receiving node.

It should be understood that the node receiving the perception signal may be the perception node sending the perception signal (ie, the self-transmitting and self-receiving mode), or may be any other node except the perception node sending the perception signal.

It should be understood that in the process that the node sending the perception signal sends the perception signal and the node receiving the perception signal receives the perception signal reflected by the perception target body, the perception signal has path loss. Among them, the path loss can also be called path loss. Therefore, how to determine the path loss of the perception signal is a problem that needs to be solved at present.

Based on this, the embodiment of the present disclosure provides a communication method, which determines a first signal, determines the first signal as a path loss reference signal of a second signal, and then determines the path loss of the second signal based on the first signal, thereby determining the path loss of the perception signal. Through the embodiment of the present disclosure, the path loss reference signal of the second signal can be clarified, and then the path loss of the second signal that perceives the perception target can be determined, and the transmission power of the second signal is determined based on the path loss, thereby improving the accuracy of communication perception.

FIG2 is a schematic diagram of a communication method interaction according to an embodiment of the present disclosure. As shown in FIG2 , the present disclosure embodiment relates to a communication method, which is used in a communication system 100, and the method includes:

Step S2101: The first node determines a first signal.

In some embodiments, the first node has one or more of the following functions: sending data, sending letters, sending information, etc.

Optionally, the "first node" is a node in the perceptual communication (or communication perception) technology (or scenario). It should be understood that the "first node" may also be a node with a sending function in the perceptual communication (or communication perception) technology (or scenario). For example, the perceptual node is a node that perceives the perceptual target in the communication perception technology.

Optionally, terms such as “first node”, “first device”, “perception node”, “perception sending node”, “node that sends a sensing signal”, “node that sends a second signal”, etc. may be interchangeable, and the embodiments of the present disclosure are not limited to this.

In some embodiments, the second signal is a signal that can be used to sense the sensing target.

Optionally, terms such as "second node", "second device", "perception node", "perception receiving node", "node receiving a perception signal", "node receiving a second signal" and the like may be interchangeable, and the embodiments of the present disclosure are not limited thereto.

In some embodiments, the first signal is used to determine a path loss (pathloss) reference signal (RS) of the second signal.

Optionally, terms such as "path loss reference signal" and "path loss reference signal" may be interchangeable, and the embodiments of the present disclosure are not limited to this.

In some embodiments, the first signal includes at least one of the following:

Synchronization Signal and PBCH block (SSB); Channel Status Information-Reference Signal (CSI-RS); Sounding Reference Signal (SRS); Positioning Reference Signal (PRS); Sidelink Positioning Reference Signal (SL-PRS); Sidelink Sounding Reference Signal (Sidelink Sounding Reference Signal, SL-SRS) SSB of sidelink (Sidelink, SL); CSI-RS of SL; Dedicated demodulation reference signals (DMRS) of physical sidelink shared channel (Physical Sidelink Shared Channel, PSSCH); Demodulation reference signal of physical sidelink control channel (Physical Sidelink Control Channel, PSCCH); New reference signal for sensing the sensing target. The first signal can be a reference signal for positioning or channel state information measurement or beam measurement or target perception.

In some embodiments, determining the first signal includes: determining a resource identifier corresponding to the first signal. For example, the resource identifier corresponding to the first signal includes a PRS resource identifier. The PRS resource identified by the PRS resource identifier may be of a serving cell or a neighboring cell.

In some embodiments, determining the first signal includes: determining a signal sequence corresponding to the first signal.

In some embodiments, the first signal includes a reference signal for air interface communication. Optionally, the first signal includes at least one of the following: SSB, CSI-RS, SRS, PRS.

In some embodiments, the first signal includes a reference signal for SL communication. Optionally, the first signal includes at least one of the following: a PRS of the SL, an SSB of the SL, a CSI-RS of the SL, an SRS of the SL, a PSSCH DMRS, and a PSCCH DMRS.

In some embodiments, the first signal includes a new reference signal for sensing the sensing target.

In some embodiments, at least one of a terminal, an access network device, and a core network device sends first information, and the first information includes first signal information.

In some embodiments, the first node receives first information, wherein the first information includes first signal information. Optionally, the first node receives the first information sent from at least one of a terminal, an access network device, and a core network device.

In some embodiments, determining the first signal includes at least one of the following: obtaining a radio resource control (RRC) sent by an access network device, the RRC including first signal information, such as the first signal information including a first signal resource identifier; obtaining a media access control-control element (MAC-CE) sent by the access network device, the MAC-CE is used to determine the first signal information, such as the first signal information including a first signal resource identifier. Obtaining downlink control information (DCI) sent by the access network device, the DCI is used to determine the first signal information, such as the first signal information including a first signal resource identifier, and the DCI indicates a code point corresponding to the first signal resource identifier. Obtaining the first signal information from a protocol. Obtaining the first signal information from an interface with a perception function entity, such as the first signal information including a first signal resource identifier. Obtaining an RRC for SL communication, the RRC for SL communication including the first signal information, such as the first signal information including a first signal resource identifier. Obtain a MAC-CE for SL communication, the MAC-CE for SL communication is used to determine the first signal information, for example, the first signal information includes a first signal resource identifier. Obtain a DCI for SL, the DCI for SL is used to determine the first signal information, for example, the first signal information includes a first signal resource identifier, and the SL DCI indicates the code point corresponding to the first signal resource identifier. Obtain a PSSCH for determining the first signal information, for example, the content transmitted by the PSSCH includes the first signal resource identifier or the first signal is a DMRS corresponding to the PSSCH. Obtain a PSCCH for determining the first signal information, for example, the content transmitted by the PSCCH includes the first signal resource identifier or the first signal is a DMRS corresponding to the PSCCH.

In some embodiments, determining the first signal includes at least one of the following: obtaining an RRC sent by an access network device, the RRC including first signal information, such as the first signal information including a first signal sequence; obtaining a MAC-CE sent by the access network device, the MAC-CE being used to determine the first signal information, such as the first signal information including a first signal sequence; obtaining a DCI sent by the access network device, the DCI being used to determine the first signal information, such as the first signal information including a first signal sequence; obtaining the first signal information from a protocol; obtaining the first signal information from an interface with a perception function entity, such as the first signal information including a first signal sequence; obtaining an RRC for SL communication, the RRC for SL communication including the first signal information, such as the first signal information including a first signal sequence; obtaining a MAC-CE for SL communication, the MAC-CE for SL communication being used to determine the first signal information, such as the first signal information including a first signal sequence; obtaining a DCI for SL, the DCI for SL being used to determine the first signal information, such as the first signal information including a first signal sequence.

In some embodiments, the first node may be at least one of the following: a terminal, an access network device, and a core network device.

In some embodiments, the access network device sends the first information. The first node receives the first information sent by the access network device. The first information includes the first signal information.

In some embodiments, the access network device 102 sends the first information through at least one of the following: RRC, MAC-CE, DCI. The first node receives the first information sent from the access network device through at least one of RRC, MAC CE and DCI, and the first information includes the first signal information.

In some embodiments, the first signal information is obtained from a protocol.

Optionally, the first signal information is obtained from a protocol with the perception function entity. For example, the first signal information is configured by the protocol.

In some embodiments, the first signal information is acquired based on an interface with a sensing function entity.

In some embodiments, the sensing function entity sends the first information. The first node receives the first information sent by the sensing function entity.

In some embodiments, the perception function entity is part of the network elements in the core network device, or all of the network elements.

In some embodiments, the terminal sends the first information. The first node receives the first information sent by the terminal.

Optionally, the terminal is a terminal that performs SL communication with the first node.

In some embodiments, the terminal sends the first information through at least one of the following: SL RRC, SL MAC CE, SL DCI, PSSCH, PSCCH. The first node receives the first information through at least one of SL RRC, SL MAC CE, SL DCI, PSSCH, PSCCH.

In some embodiments, the first signal information is configured, and the second signal information is configured.

Optionally, configuring the second signal information includes: an identifier indicating the second signal.

Optionally, during the process of the first node configuring the first signal information based on the access network device, the access network device indicates an identifier of the second signal.

Optionally, during the process of the first node configuring the first signal information based on the perception function entity, the perception function entity indicates an identifier of the second signal.

Optionally, during the process of the first node configuring the first signal information based on the terminal, the terminal indicates an identifier of the second signal.

In some embodiments, the first node determines the first signal by itself. Optionally, if the first signal is not configured, the first node determines the first signal by itself. Optionally, the first node is not configured with any of the first signal information involved above, and the first node determines the first signal by itself.

In some embodiments, the first node determines the first signal based on at least one of the following: obtaining an SSB of a master information block (MIB) and a sidelink reference signal. Optionally, the sidelink reference signal is sent by a second node. The second node is a node that performs SL communication with the first node. For example, the second node is a node that receives a second signal sent by the first node.

In some embodiments, the sidelink reference signal sent by the second node includes at least one of the following: PRS of SL, SSB of SL, CSI-RS of SL, SRS of SL, PSSCH DMRS, and PSCCH DMRS.

In some embodiments, the number of sidelink reference signals sent by the second node is multiple. The first node determines a first reference signal based on the multiple sidelink reference signals, and uses the determined first reference signal as the first signal.

Optionally, the first reference signal is a reference signal whose signal strength or signal quality meets a condition among multiple sidelink reference signals. For example, the first reference signal is a sidelink reference signal among multiple sidelink reference signals. The one sidelink reference signal includes at least one of the following: a sidelink reference signal whose signal strength is higher than a threshold value and whose signal strength is the smallest among multiple sidelink reference signals. Or the one sidelink reference signal is a sidelink reference signal whose signal quality is higher than a threshold value and whose signal quality is the smallest among multiple sidelink reference signals.

In some embodiments, the number of the second nodes is multiple, the multiple second nodes send multiple sidelink reference signals, and the first node receives the multiple sidelink reference signals sent by the multiple second nodes.

Step S2102: The first node determines the first signal as a path loss reference signal of the second signal.

In some embodiments, the second signal is a signal for sensing a sensing target. Optionally, the second signal may be referred to as a "sensing signal" or a "communication sensing signal" or a "synaesthesia signal" or the like. Optionally, the sensing target may be referred to as a "target" or other object that needs to be sensed in a communication sensing scenario. Exemplarily, the sensing target may be a vehicle, a drone, or the like. This disclosure does not limit this.

In some embodiments, sensing the sensing target body includes: sensing the sensing target body using the second signal reflected by the sensing target body.

In some embodiments, a path loss reference signal of the second signal is used to determine the path loss of the second signal.

In some embodiments, the first node determines the validity of the first signal. Optionally, the first node determines the first signal is valid. The first node determines the first signal is invalid.

In some embodiments, the first node determines that the first signal is valid and determines the first signal as a path loss reference signal for the second signal.

In some embodiments, the first node determines that the first signal fails, and the first node determines the first signal on its own.

In some embodiments, the first node determines that the first signal fails, and the first node determines the first signal based on at least one of the following: obtaining an SSB of the MIB, a sidelink reference signal. Optionally, the sidelink reference signal is sent by a node that performs sidelink communication with the first node.

In some embodiments, the first node determines that the first signal fails by using at least one of the following methods A-E:

A: The first signal cannot be accurately measured and is invalid.

Optionally, the first signal cannot be accurately measured, and it is determined that the first signal is invalid.

Optionally, if the measurement value accuracy of the first signal is less than an accuracy threshold, the first signal is invalid.

Optionally, the measurement value accuracy of the first signal is determined based on one or more of the following first signal-related parameters, including: signal-to-noise ratio, bit error rate, signal strength, carrier-to-interference-noise ratio, modulation error ratio, frequency deviation, clock error, and phase noise.

B: The first signal strength is less than the second threshold, and the first signal is invalid.

Optionally, the first signal strength is less than a signal strength threshold, and the first signal is invalid.

Optionally, the first signal strength includes: RSRP of the first signal.

In some embodiments, the first signal quality is less than a third threshold and the first signal is invalid.

C: The first signal quality is less than the signal quality threshold, and the first signal is invalid.

Optionally, the first signal quality includes at least one of the following: RSRQ of the first signal or SINR of the first signal.

Optionally, the quality of the first signal is determined based on one or more of the following parameters related to the first signal, including: signal-to-noise ratio, bit error rate, carrier-to-interference-noise ratio, modulation and demodulation performance, frequency deviation, clock error, phase noise, path loss, and multipath propagation. D: The first signal strength change is greater than a fourth threshold, and the first signal fails.

In some embodiments, the first signal strength variation is greater than a signal strength difference threshold, and the first signal fails.

Optionally, the first signal strength change is determined based on the first signal strength difference, wherein the first signal strength difference can be determined based on the strength of the first signal when the first signal is configured and the signal strength of the first signal at the current moment.

Optionally, the first signal strength includes: RSRP of the first signal.

Optionally, the first signal strength difference can be calculated based on the difference between the strength of the first signal when the first signal is configured and the signal strength of the first signal at the current moment, wherein the first signal strength difference is the difference between the first signal strength when the first signal is configured and the signal strength of the first signal at the current moment.

E: The quality change of the first signal is greater than the fifth threshold, and the first signal is invalid.

Optionally, the first signal quality change is determined based on a first signal quality difference. If the first signal quality difference is greater than a signal quality difference threshold, the first signal fails.

Optionally, the first signal quality includes at least one of the following: RSRQ of the first signal or SINR of the first signal.

Optionally, the first signal quality difference may be determined based on the quality of the first signal when the first signal is configured and the signal quality of the first signal at a current moment.

In some embodiments, the first node determines the first signal by itself. Optionally, in response to the first signal being determined to be failed, the first node determines the third signal by itself, and determines the third signal as the path loss reference signal of the second signal.

In some embodiments, the third signal includes at least one of the following:

A synchronization signal block for obtaining a master information block;

Sidelink reference signal.

Optionally, the sidelink reference signal is sent by a node receiving the second signal.

In some embodiments, the sidelink reference signal is sent by a node receiving the second signal, the number of the sidelink reference signals is multiple, a first reference signal is determined, and the first reference signal is used as the third signal.

Optionally, the first reference signal is a reference signal whose signal strength or signal quality meets the conditions among multiple sidelink reference signals.

In some embodiments, the signal strength or the signal meets the condition includes at least one of the following: the signal strength is higher than a threshold value and the signal strength is minimum; the signal quality is higher than a threshold value and the signal quality is minimum.

Step S2103: the first node sends a second signal.

In some embodiments, the first node determines a path loss of the second signal based on the path loss signal of the second signal. Based on the determined path loss of the second signal, the second signal is transmitted.

Optionally, the first node determines the power of sending the second signal based on the path loss of the second signal. Optionally, the first node determines the sending power based on the path loss, and sends the second signal according to the determined sending power.

In some embodiments, the second signal sent by the first node may be an uplink signal or a SL signal.

In some embodiments, the second signal includes at least one of the following: PRS; SRS; SL-PRS, SL-SRS; PRS between access network devices; SRS between access network devices; or a new reference signal for sensing the sensing target.

In some embodiments, the sensing target reflects the second signal to the second node.

In some embodiments, the second node receives a second signal reflected by the sensing target.

In some embodiments, the first node and the second node may be at least one of a terminal and an access network device.

Optionally, in some embodiments, the first node and the second node are terminals. This method can be called a sensing mode between terminals. The second signal is sent and received between terminals. The first node and the second node can be the same terminal, or different terminals 101. The different terminals are called the first terminal and the second terminal.

In some embodiments, the first node is a first terminal, and the second node is a first terminal or a second terminal. Optionally, the first terminal sends a second signal, the second signal is reflected by the sensing target, and is received by the first terminal. Among them, this method can be called a terminal-to-terminal sensing mode in which the terminal sends and receives the signal spontaneously between the terminals. Alternatively, the first terminal sends a second signal, the second signal is reflected by the sensing target, and is received by the second terminal.

Optionally, the first signal includes a reference signal for air interface communication. For example, the first signal includes at least one of the following: SSB, CSI-RS, SRS, PRS.

Optionally, the first signal includes a reference signal for SL communication. For example, the first signal includes at least one of the following: a PRS of the SL, an SSB of the SL, a CSI-RS of the SL, an SRS of the SL, a PSSCH DMRS, and a PSCCH DMRS.

Optionally, in some embodiments, the first node and the second node are access network devices. This method is called a perception mode between access network devices. The second signal is sent and received between access network devices. The first node and the second node may be the same access network device, or different access network devices, etc. The different access network devices are called the first access network device and the second access network device.

In some embodiments, the first node is a second access network device, and the second node is the first access network device or the second access network device. Optionally, the second access network device sends a second signal, the signal is reflected by the sensing target, and is received by the second access network device. Among them, this method can be called a sensing mode between access network devices, which is a self-transmitting and self-receiving sensing mode of the access network device. Or optionally, the first access network device sends a second signal, the second signal is reflected by the sensing target, and is received by the second access network device.

Optionally, the first signal includes a reference signal for air interface communication. For example, the first signal includes at least one of the following: SSB, CSI-RS, SRS, PRS.

Optionally, in some embodiments, the first node and the second node may be a terminal and an access network device. This method is called a sensing mode between the access network device and the terminal. The second signal is sent and received between the first node and the second node.

In some embodiments, the first node is a second terminal, and the second node is a first access network device. Optionally, the second terminal sends a second signal, and the second signal is reflected by the sensing target and received by the first access network device.

Optionally, the first signal includes a reference signal for air interface communication. For example, the first signal includes at least one of the following: SSB, CSI-RS, SRS, PRS.

In some embodiments, the first node is a first access network device, and the second node is a second terminal. Optionally, the first access network device sends a second signal, the second signal is reflected by the sensing target, and is received by the second terminal.

Optionally, the first signal includes a reference signal for air interface communication. For example, the first signal includes at least one of the following: SSB, CSI-RS, SRS, PRS.

In some embodiments, at least one of the first terminal and the second terminal is in RRC_connected, RRC_inactive or RRC_idle state.

In some embodiments, the first node sends the second signal via a transmission configuration indication (Transmission Configuration Indicator, TCI state) or spatial relationship information (spatial relation information).

In some embodiments, the second node receives the second signal, measures the second signal, and senses the sensing target based on the second signal.

Optionally, the second receiving device receives a second signal via TCI state or spatial relation information.

Step S2104: the second node senses the perception target object.

In some embodiments, the second node senses the sensing target based on the second signal and obtains a measurement value of the second signal.

In some embodiments, the measured value of the second signal includes one or more of the following: reference signal received power (RSRP), reference signal received power per path (RSRP per path, RSRPP), reference signal received quality (RSRQ), signal-to-noise and interference ratio (SINR), arrival angle of the second signal, departure angle of the second signal, arrival time of the second signal, arrival time difference of the second signal, reception and transmission time difference of the second signal, distance between the perceived target and the node sending the second signal, distance between the perceived target and the node receiving the second signal, moving speed of the perceived target, and Doppler frequency deviation of the second signal.

Optionally, the arrival time difference is a difference between an arrival time when the second information arrives at the second node of the second signal and a preset reference time.

Optionally, the receiving node performs position perception of the perception target based on the path loss between the second signal and the third signal.

Optionally, Doppler frequency deviation, Doppler shift and Doppler offset can be interchangeable, and the present disclosure does not limit this.

In some embodiments, terms such as "send", "transmit", "report", "send", "transmit", "bidirectional transmission", "send and/or receive" can be used interchangeably.

In some embodiments, "determine", "obtain", "obtain", "get", "receive", "transmit", "bidirectional transmission", "send and/or receive" can be interchangeable, which can be interpreted as receiving from other entities, obtaining from protocols, obtaining from high levels, obtaining by self-processing, autonomous implementation, etc.

In some embodiments, "node" and "perceiving node" can be interchangeable, and can be interpreted as a node in communication-aware technology or communication-aware scenarios.

In some embodiments, "receiving node" and "perceiving receiving node" can be interchangeable, and can be interpreted as a node with the function of receiving data (or, information, signal, etc.) in communication perception technology or communication perception scenarios.

In some embodiments, "sending node" and "perceiving sending node" can be interchangeable, and can be interpreted as a node that has the function of sending data (or information, signals, etc.) in communication perception technology or communication perception scenarios.

In some embodiments, the names of information, etc. are not limited to the names recorded in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "code element", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

In some embodiments, the terms "uplink", "uplink", "physical uplink" and the like can be used interchangeably, and the terms "downlink", "downlink", "physical downlink" and the like can be used interchangeably, and the terms "side", "sidelink", "side communication", "sidelink communication", "direct connection", "direct link", "direct communication", "direct link communication" and the like can be used interchangeably. In some embodiments, the terms "downlink control information (DCI)", "downlink (DL) assignment", "DL DCI", "uplink (UL) grant", "UL DCI" and the like can be used interchangeably.

In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DI data" can be interchangeable with each other, and terms such as "physical uplink shared channel (PUSCH)" and "UL data" can be interchangeable with each other.

In some embodiments, terms such as "synchronization signal (SS), "synchronization signal block (SSB)", "reference signal (RS)", "pilot", and "pilot signal" can be used interchangeably.

In some embodiments, terms such as "certain", "preset", "preset", "set", "indicated", "some", "any", and "first" can be interchangeable, and "specific A", "preset A", "preset A", "set A", "indicated A", "some A", "any A", and "first A" can be interpreted as A pre-defined in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., and can also be interpreted as specific A, some A, any A, or first A, etc., but is not limited to this.

In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values (for example, comparison with a predetermined value), but is not limited to this.

The communication method involved in the embodiment of the present disclosure includes at least one of step S2101 to step S2104. For example, step S2101 can be implemented as an independent embodiment, step S2102 can be implemented as an independent embodiment, and step S2104 can be implemented as an independent embodiment. Step S2101+step S2102 can be implemented as independent embodiments, but are not limited thereto.

In some embodiments, steps S2103 and S2104 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, reference may be made to other optional implementations recorded before or after the specification corresponding to FIG. 2 .

FIG3A is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3A , the present disclosure embodiment relates to a communication method, and the method includes:

Step S3101, determine the first signal.

The optional implementation of step S3101 can refer to the optional implementation of step S2101 in FIG. 2 and other related parts in the embodiment involved in FIG. 2 , which will not be described in detail here.

Step S3102: determine a path loss reference signal of the second signal.

The optional implementation of step S3102 can refer to the optional implementation of step S2102 in FIG. 2 and other related parts in the embodiment involved in FIG. 2 , which will not be described in detail here.

Step S3103, sending a second signal.

The optional implementation of step S3103 can refer to the optional implementation of step S2103 in FIG. 2 and other related parts in the embodiment involved in FIG. 2 , which will not be described in detail here.

The communication method involved in the embodiment of the present disclosure may include at least one of step S3101 to step S3103. For example, step S3101 may be implemented as an independent embodiment, step S3102 may be implemented as an independent embodiment, step S3101+step S3102 may be implemented as an independent embodiment, and step S3101+step S3102+step S3103 may be implemented as an independent embodiment, but is not limited thereto.

In some embodiments, step S3101 and step S3103 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

In some embodiments, step S3102 and step S3103 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

FIG3B is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3B , the present disclosure embodiment relates to a communication method, and the method includes:

Step S3201, determine the first signal.

In an optional embodiment of step S3201, step S3201 includes a lower-level scheme step S3102. The optional implementation method of step S3102 can refer to step S2102 of Figure 2, the optional implementation method of step S3102 of Figure 3A, and other related parts in the embodiments involved in Figures 2 and 3A, which will not be repeated here.

In an optional embodiment of step S3201, in response to the first signal being determined to be invalid, the first node determines the third signal by itself, and the path loss reference signal of the second signal cannot be determined based on the first signal in step S2102. Based on this, the first node determines the path loss reference signal of the second signal based on the third signal.

Step S3202, sending a second signal.

In some embodiments, the transmit power of the second signal is determined based on a path loss reference signal of the second signal.

In an optional embodiment of step S3202, step S3202 includes a lower-level scheme step S3103. The optional implementation method of step S3103 can refer to step S2103 of Figure 2, the optional implementation method of step S3103 of Figure 3A, and other related parts in the embodiments involved in Figures 2 and 3A, which will not be repeated here.

In the embodiment of the present disclosure, step S3201 may be combined with step S3101 of FIG. 3A .

FIG3C is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3C , the present disclosure embodiment relates to a communication method, and the method includes:

Step S3301, determine the first signal.

In an optional embodiment, step S3201 includes optional implementations of step S3201 and step S3101. The optional implementations of step S3101 and step S3201 can refer to the optional implementation of step S2101 in FIG2 and other related parts in the embodiments involved in FIG2, FIG3A and FIG3B, which will not be repeated here.

In some embodiments, the first signal is determined as a path loss reference signal of a second signal, and the second signal is used to sense the sensing target.

In some embodiments, the first signal includes at least one of the following: a synchronization signal block; a channel state information reference signal; a sounding reference signal; a positioning reference signal; a sidelink positioning reference signal; a sidelink synchronization signal block; a sidelink channel state information reference signal; a sidelink sounding reference signal; a demodulation reference signal of a physical sidelink shared channel; a demodulation reference signal of a physical sidelink control channel; or a new reference signal for sensing a sensing target.

In some embodiments, determining the first signal includes at least one of the following: obtaining wireless resource control signaling sent by an access network device, the wireless resource control signaling including first signal information; obtaining media access control control unit signaling sent by the access network device, the media access control control unit signaling is used to determine the first signal information; obtaining downlink control information sent by the access network device, the downlink control information is used to determine the first signal information; obtaining the first signal information from a protocol; obtaining the first signal information from an interface with a perception function entity; obtaining wireless resource control signaling for sidelink communication, the wireless resource control signaling for sidelink communication including first signal information; obtaining media access control control unit signaling for sidelink communication, the media access control control unit signaling for sidelink communication is used to determine the first signal information; obtaining direct link control information for sidelink communication, the direct link control information for sidelink communication is used to determine the first signal information; obtaining a physical sidelink shared channel for determining the first signal information; obtaining a physical sidelink control channel for determining the first signal information.

In some embodiments, the method further comprises: determining that the first signal fails, and determining a third signal, and determining the third signal as a path loss reference signal of the second signal; the third signal comprises at least one of the following: a synchronization signal block for obtaining a master information block; a side link reference signal.

In some embodiments, the method also includes: when there are multiple sidelink reference signals, determining a first reference signal, and using the first reference signal as a third signal, the first reference signal being a reference signal whose signal strength or signal quality meets the conditions among the multiple sidelink reference signals.

In some embodiments, determining that the first signal has failed includes at least one of the following: being unable to accurately measure the first signal, determining that the first signal has failed; the signal strength of the first signal is less than a second threshold, determining that the first signal has failed; the signal quality of the first signal is less than a third threshold, determining that the first signal has failed; the signal strength change of the first signal is greater than a fourth threshold, determining that the first signal has failed; the signal quality change of the first signal is greater than a fifth threshold, determining that the first signal has failed.

In some embodiments, the first signal includes at least one of: a synchronization signal block for obtaining a master information block; a sidelink reference signal.

In some embodiments, the method also includes: when there are multiple sidelink reference signals, determining a first reference signal, using the first reference signal as the first signal, the first reference signal being a reference signal whose signal strength or signal quality meets the conditions among the multiple sidelink reference signals.

In some embodiments, at least one of the following conditions is satisfied between the node sending the second signal and the node receiving the second signal: the node sending the second signal is the first terminal, and the node receiving the second signal is the first terminal or the second terminal; the node sending the second signal is the second terminal, and the node receiving the second signal is the first access network device; the node sending the second signal is the first access network device, and the node receiving the second signal is the second terminal; the node sending the second signal is the second access network device, and the node receiving the second signal is the first access network device or the second access network device.

In some embodiments, the second signal includes at least one of the following: a positioning reference signal; a detection reference signal; a sidelink positioning reference signal; a sidelink detection reference signal; a positioning reference signal between access network devices; a detection reference signal between access network devices; a new reference signal for sensing the target object.

In some embodiments, at least one of the first terminal and the second terminal is in any one of the following states: a radio resource control RRC connected state; an RRC inactive state; an RRC idle state.

In some embodiments, the method further comprises: determining a transmit power for transmitting the second signal based on the path loss reference signal.

In some embodiments, sensing the sensing target body includes: sensing the sensing target body using a second signal reflected by the sensing target body.

FIG4A is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4A , the present disclosure embodiment relates to a communication method, and the method includes:

Step S4101, receiving a second signal.

The optional implementation of step S4101 can refer to the optional implementation of step S2103 in FIG. 2 and other related parts in the embodiment involved in FIG. 2 , which will not be described in detail here.

Step S4102, sensing the perception target object.

In some embodiments, the receiving node senses the sensing target based on the second signal.

The optional implementation of step S4102 can refer to the optional implementation of step S2104 in FIG. 2 and other related parts in the embodiment involved in FIG. 2 , which will not be described in detail here.

FIG4B is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4B , the embodiment of the present disclosure relates to a communication method, and the method includes:

Step S4201, receiving a second signal.

In the optional embodiment of step S4201, step S4201 includes lower-level scheme steps S4101 and S4102. The optional implementation of step S4101 can refer to step S2104 of FIG. 2, the optional implementation of step S4101 of FIG. 4A, and other related parts in the embodiments involved in FIG. 2 and FIG. 4A, which will not be described in detail here. The optional implementation of step S4102 can refer to step S2104 of FIG. 2, the optional implementation of step S4101 of FIG. 4A, and other related parts in the embodiments involved in FIG. 2 and FIG. 4A, which will not be described in detail here.

In some embodiments, the second signal is used to sense the sensing target, and the transmission power of the second signal is determined based on a path loss reference signal of the second signal, and the path loss reference signal of the second signal is the first signal.

In some embodiments, a synchronization signal block; a channel state information reference signal; a sounding reference signal; a positioning reference signal; a sidelink positioning reference signal; a sidelink synchronization signal block; a sidelink channel state information reference signal; a sidelink sounding reference signal; a demodulation reference signal of a physical sidelink shared channel; a demodulation reference signal of a physical sidelink control channel; a new reference signal for sensing a sensing target.

In some embodiments, the first signal is acquired based on at least one of the following: acquired based on radio resource control signaling sent by the access network device, the radio resource control signaling includes the first signal information; acquired based on media access control control unit signaling sent by the access network device, the media access control control unit signaling is used to determine the first signal information; acquired based on downlink control information sent by the access network device, The downlink control information is used to determine the first signal information; the first signal information is obtained based on the protocol; the first signal information is obtained based on the interface with the perception function entity; the first signal information is obtained based on the wireless resource control signaling used for sidelink communication, and the wireless resource control signaling used for sidelink communication includes the first signal information; the first signal information is obtained based on the media access control control unit signaling used for sidelink communication, and the media access control control unit signaling used for sidelink communication is used to determine the first signal information; the first signal information is obtained based on the direct link control information used for sidelink communication, and the direct link control information used for sidelink communication is used to determine the first signal information; the first signal information is obtained based on the physical sidelink shared channel used to determine the first signal information; the first signal information is obtained based on the physical sidelink control channel used to determine the first signal information.

In some embodiments, the method also includes: the first signal fails, and a third signal is determined, and the third signal is determined as a path loss reference signal of the second signal, and the third signal includes at least one of the following: a synchronization signal block for obtaining a main information block; a side link reference signal.

In some embodiments, there are multiple sidelink reference signals, the third signal is the first reference signal, and the first reference signal is a reference signal whose signal strength or signal quality meets the conditions among the multiple sidelink reference signals.

In some embodiments, the first signal fails, including at least one of the following: the first signal cannot be accurately measured, and the first signal fails; the signal strength of the first signal is less than the second threshold, and the first signal fails; the signal quality of the first signal is less than the third threshold, and the first signal fails; the signal strength change of the first signal is greater than the fourth threshold, and the first signal fails, and the signal strength difference is the difference between the configured signal strength and the current signal strength; the signal quality change of the first signal is greater than the fifth threshold, and it is determined that the first signal has failed.

In some embodiments, the first signal includes at least one of: a synchronization signal block for obtaining a master information block; a sidelink reference signal.

In some embodiments, the method further includes: the number of sidelink reference signals is multiple, the first signal is a first reference signal, and the first reference signal is a reference signal whose signal strength or signal quality meets the condition among the multiple sidelink reference signals.

In some embodiments, at least one of the following conditions is satisfied between the node sending the second signal and the node receiving the second signal: the node sending the second signal is the first terminal, and the node receiving the second signal is the first terminal or the second terminal; the node sending the second signal is the second terminal, and the node receiving the second signal is the first access network device; the node sending the second signal is the first access network device, and the node receiving the second signal is the second terminal; the node sending the second signal is the second access network device, and the node receiving the second signal is the first access network device or the second access network device.

In some embodiments, the second signal includes at least one of the following: a positioning reference signal; a detection reference signal; a sidelink positioning reference signal; a sidelink detection reference signal; a positioning reference signal between access network devices; a detection reference signal between access network devices; a new reference signal for sensing the target object.

In some embodiments, at least one of the first terminal and the second terminal is in any one of the following states: a radio resource control RRC connected state; an RRC inactive state; an RRC idle state.

In some embodiments, sensing the sensing target body includes: sensing the sensing target body using a second signal reflected by the sensing target body.

In some embodiments, the method also includes: determining the measurement value of the second signal based on at least one of the following: reference signal received power RSRP; reference signal received power RSRPP of the i-th path; reference signal received quality RSRQ; signal-to-interference and noise ratio SINR; arrival angle of the second signal; departure angle of the second signal; arrival time of the second signal; arrival time difference of the second signal; reception and transmission time difference of the second signal; distance between the perceived target and the node sending the second signal; distance between the perceived target and the node receiving the second signal; moving speed of the perceived target; Doppler frequency deviation of the second signal.

FIG5 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG5 , the present disclosure embodiment relates to a communication method, and the method includes:

Step S5101: the first node 201 determines a first signal.

In some embodiments, the first node 201 is replaceable with the first node in the embodiment of FIG. 2 , and both can represent a perceptual sending node in a perceptual communication technology or scenario.

The optional implementation of step S5101 can refer to the optional implementation of step S2102 in Figure 2, step S3102 in Figure 3A, step S3201 in Figure 3B, and step S3301 in Figure 3C, as well as other related parts in the embodiments involved in Figures 2, 3A, 3B, and 3C, which will not be repeated here.

Step S5102: The first node 201 determines a path loss reference signal of the second signal.

The optional implementation of step S5101 can refer to the optional implementation of step S2102 in Figure 2, step S3102 in Figure 3A, step S3201 in Figure 3B, and step S3301 in Figure 3C, as well as other related parts in the embodiments involved in Figures 2, 3A, 3B, and 3C, which will not be repeated here.

Step S5103 : the first node 201 sends a second signal to the second node 202 .

In some embodiments, the second node 202 is replaceable with the second node in the embodiment of FIG. 2 , and both can represent a perceptual receiving node in a perceptual communication technology or scenario.

Optionally, the first node may be referred to as a first device, configured to send the second signal.

Optionally, the second node may be referred to as a second device, configured to receive a second signal.

The optional implementation method of step S5102 can refer to step S2103 of Figure 2, step S3103 of Figure 3A, step S3202 of Figure 3B, step S4101 of Figure 4A and the optional implementation method of step S4201 of Figure 4B, and other related parts in the embodiments involved in Figures 2, 3A, 3B, 4A and 4B, which will not be repeated here.

The present disclosure also provides a communication method, as described below:

When the sensing mode is sensing communication between user equipment (UE), the following methods are included:

Method 1: The gNB or the perception function entity or the UE performs configuration, and the reference signal configured as the pathloss RS may be at least one of the following reference signals. And the transmission configuration indicator state (TCI state) or spatial relationship information (spatial relation information) may be used for sending and/or receiving the perception signal.

In one embodiment, a path loss reference signal (Pathloss RS) is configured by a wireless base station (gNodeB, gNB).

In one embodiment, the path loss reference signal is configured by a sensing function entity.

In one embodiment, the path loss reference signal is configured by the user equipment.

In one embodiment, the Uu port includes synchronization signal block (Synchronization Signal Block, SSB), channel state information reference signal (CSI-RS), sounding reference signal (Sounding Reference Signal, SRS), and positioning reference signal (PRS) resources.

Optionally, the PRS resource may be from a serving cell or a neighboring cell.

In one embodiment, PRS, SSB, CSI-RS of the sidelink (SL), demodulation reference signal (DMRS) resources of the physical sidelink shared channel (PSSCH), and demodulation reference signal (DMRS) resources of the physical sidelink control channel (PSCCH).

Optionally, when the sensing mode is sensing communication between UEs, the gNB sends a sensing signal, the sensing signal is reflected by a sensing target, and then the gNB receives the reflected sensing signal.

Optionally, when the perception mode is perception communication between UEs, it includes gNB A sending a perception signal, the perception signal is reflected by the perception target body, and then gNB B receives the reflected perception signal.

In one embodiment, if the gNB configures a reference signal for the pathloss RS, it is configured through one or more of a Radio Resource Control (RRC) instruction, a Medium Access Control Control Element (MAC CE) instruction, and a Downlink Control Information (DCI) instruction.

In one embodiment, if the reference signal of the pathloss RS is configured through the perception function entity, it is configured through a protocol between the perception function entity and the UE.

In one embodiment, if configured by UE, it is configured by one or more of SL's RRC, MAC CE, SL DCI, SL PSSCH, and SL PSCCH.

In one embodiment, the validity of the reference signal of the configured pathloss RS is judged.

In one embodiment, the UE determines that the pathloss RS information is invalid if one or more of the following situations exist, including: the UE cannot accurately measure the reference signal corresponding to the configured pathloss RS, or the signal strength or signal quality corresponding to the reference signal is lower than a threshold value, or the signal strength difference/change corresponding to the reference signal, or the signal quality difference/change is greater than a threshold value.

In one embodiment, the fallback after failure is the same as if it were not configured.

In one embodiment, the threshold value is determined by network configuration or default rules.

Method 2: When the sensing mode is sensing communication between gNB and UE, the following methods are included:

In one embodiment, the gNB configures the reference signal of the pathloss RS through the Uu port.

Optionally, the gNB configures the reference signal corresponding to the pathloss RS through one or more of the following information of the Uu port, including: SB, CSI-RS, SRS, and PRS resources.

In one embodiment, the configuration is performed by the gNB or the perception function entity.

Optionally, the perception mode is perception communication between the gNB and the UE, including the gNB sending a perception signal, the perception signal being reflected by a perception target body, and then the UE receiving the reflected perception signal.

Optionally, the perception mode is perception communication between the gNB and the UE, including the UE sending a perception signal, the perception signal being reflected by the perception target body, and then the gNB receiving the reflected perception signal.

In one embodiment, the configuration on the gNB side may be the same as that on the UE side or may not be restricted.

Method 3: When the sensing mode is inter-gNB sensing communication, the following methods are included:

In one embodiment, the gNB configures the reference signal of the pathloss RS through the Uu port.

Optionally, the gNB configures the reference signal corresponding to the pathloss RS through one or more of the following information of the Uu interface, including: SB, CSI-RS, SRS, PRS resources.

In one embodiment, the interface between gNBs or the interface between the perception function entity and the gNB is configured.

Optionally, the sensing mode is sensing communication between gNBs, including the gNB sending a sensing signal, the sensing signal is reflected by a sensing target, and then the gNB receives the reflected sensing signal.

Optionally, the sensing mode is sensing communication between gNBs, including gNB A sending a sensing signal, the sensing signal is reflected by a sensing target body, and then gNB B receives the reflected sensing signal.

In one embodiment, the above perception signal (or reference signal of pathloss RS) can be PRS, SRS, SL-PRS, SL-SRS, PRS/SRS between base stations, or a new reference signal for perception.

In one embodiment, the awareness functional entity is part of the core network.

In one embodiment, the configuration on the gNB side may be the same as that on the UE side or may not be restricted.

In one embodiment, the measurement values of the perceived signal include signal strength measurement values RSRP/RSRQ/SINR, angle measurement values arrival angle/departure angle, time measurement values arrival time difference/arrival time/receiving and sending time difference, distance, moving speed, Doppler shift, etc.

In one embodiment, the above embodiment is applicable to the UE being in a radio resource control RRC connected state (RRC_connected), an RRC inactive state (RRC_inactive) or an RRC idle state (RRC_idle).

It should be understood that the above embodiments can be combined with each other or implemented separately. For example, the validity judgment of the reference signal corresponding to the pathloss RS in method one and the related embodiments are also applicable to method two and method three, and will not be repeated here.

It should be understood that the above description of the sensing signal or UE status can be applied to various embodiments and will not be described one by one here.

In the embodiments of the present disclosure, part or all of the steps and their optional implementations may be arbitrarily combined with part or all of the steps in other embodiments, or may be arbitrarily combined with optional implementations of other embodiments.

The embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device is proposed, the above device includes a unit or module for implementing each step performed by the terminal in any of the above methods. For another example, another device is also proposed, including a unit or module for implementing each step performed by a network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.

It should be understood that the division of the units or modules in the above device is only a division of logical functions, which can be fully or partially integrated into one physical entity or physically separated in actual implementation. In addition, the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and instructions are stored in the memory. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory inside the device or a memory outside the device. Alternatively, the units or modules in the device may be implemented in the form of hardware circuits, and the functions of some or all of the units or modules may be implemented by designing the hardware circuits. The hardware circuits may be understood as one or more processors; for example, in one implementation, the hardware circuits are application-specific integrated circuits (ASICs), and the functions of some or all of the above units or modules may be implemented by designing the logical relationship of the components in the circuits; for another example, in another implementation, the hardware circuits may be implemented by programmable logic devices (PLDs), and Field Programmable Gate Arrays (FPGAs) may be used as an example, which may include a large number of logic gate circuits, and the connection relationship between the logic gate circuits may be configured by configuring the configuration files, thereby implementing the functions of some or all of the above units or modules. All units or modules of the above devices may be implemented in the form of software called by the processor, or in the form of hardware circuits, or in the form of software called by the processor, and the remaining part may be implemented in the form of hardware circuits.

In the disclosed embodiments, the processor is a circuit with signal processing capability. In one implementation, the processor may be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which may be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor may implement certain functions through the logical relationship of a hardware circuit, and the logical relationship of the above hardware circuit may be fixed or reconfigurable, such as a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document to implement the hardware circuit configuration may be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as ASIC, such as Neural Network Processing Unit (NPU), Tensor Processing Unit (TPU), Deep Learning Processing Unit (DPU), etc.

FIG6A is a schematic diagram of the structure of the first node proposed in an embodiment of the present disclosure. As shown in FIG6A, the first node 6100 may include: a processing module 6101. In some embodiments, the processing module 6101 is used to determine a first signal, and determine the first signal as a path loss reference signal of a second signal, and the second signal is used to sense a sensing target. Optionally, the processing module 6101 is used to execute the processing steps (e.g., steps S2101, S2102, S2103, and S2104) performed by the first node in any of the above methods. At least one of the processing steps S2104) and at least one of the processing steps S5101 executed by the first node 201, but is not limited to this and will not be repeated here.

FIG6B is a schematic diagram of the structure of the access network device proposed in an embodiment of the present disclosure. As shown in FIG6B , the access network device 6200 may include: a transceiver module 6201. In some embodiments, the transceiver module 6201 is used to receive a second signal, the second signal is used to sense a sensing target, and the transmission power of the second signal is determined based on a path loss reference signal of the second signal, and the path loss reference signal of the second signal is the first signal. Optionally, the transceiver module 6201 is used to execute at least one of the transceiver steps (e.g., step S2103) performed by the second node in the above method and at least one of the processing steps S5102 performed by the second node 202.

In some embodiments, the transceiver module may include a sending module and/or a receiving module, and the sending module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

In some embodiments, the processing module can be a module or include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be replaced with the processor.

FIG7A is a schematic diagram of the structure of a communication device 7100 proposed in an embodiment of the present disclosure. The communication device 7100 may be a network device (e.g., an access network device, a core network device, etc.), or a terminal (e.g., a user device, etc.), or a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. The communication device 7100 may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above method embodiment.

As shown in FIG. 7A , the communication device 7100 includes one or more processors 7101. The processor 7101 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor may be used to process the communication protocol and the communication data, and the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a program, and process the data of the program. The communication device 7100 is used to execute any of the above methods.

In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memory 7102 may also be outside the communication device 7100.

In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the transceiver 7103 performs at least one of the communication steps such as sending and/or receiving in the above method (for example, step S2103, but not limited thereto), and the processor 7101 performs at least one of the other steps (for example, step S2101, step S2102, step S2103, step S2104, but not limited thereto).

In some embodiments, the transceiver may include a receiver and/or a transmitter, and the receiver and the transmitter may be separate or integrated. Optionally, the terms such as transceiver, transceiver unit, transceiver, transceiver circuit, etc. may be replaced with each other, the terms such as transmitter, transmission unit, transmitter, transmission circuit, etc. may be replaced with each other, and the terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.

In some embodiments, the communication device 7100 may include one or more interface circuits 7104. Optionally, the interface circuit 7104 is connected to the memory 7102, and the interface circuit 7104 may be used to receive signals from the memory 7102 or other devices, and may be used to send signals to the memory 7102 or other devices. For example, the interface circuit 7104 may read instructions stored in the memory 7102 and send the instructions to the processor 7101.

The communication device 7100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

7B is a schematic diagram of the structure of a chip 7200 provided in an embodiment of the present disclosure. In the case where the communication device 7100 may be a chip or a chip system, reference may be made to the schematic diagram of the structure of the chip 7200 shown in FIG. 7B , but the present disclosure is not limited thereto.

The chip 7200 includes one or more processors 7201, and the chip 7200 is used to execute any of the above methods.

In some embodiments, the chip 7200 further includes one or more interface circuits 7202. Optionally, the interface circuit 7202 is connected to the memory 7203. The interface circuit 7202 can be used to receive signals from the memory 7203 or other devices, and the interface circuit 7202 can be used to send signals to the memory 7203 or other devices. For example, the interface circuit 7202 can read instructions stored in the memory 7203 and send the instructions to the processor 7201.

In some embodiments, the interface circuit 7202 performs at least one of the communication steps such as sending and/or receiving in the above method (for example, step S2103 but not limited thereto), and the processor 7201 performs other steps (for example, step S2101, step S2102, step S2103, Step S2104, but not limited to at least one of these).

In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

In some embodiments, the chip 7200 further includes one or more memories 7203 for storing instructions. Optionally, all or part of the memory 7203 may be outside the chip 7200.

The present disclosure also proposes a storage medium, on which instructions are stored, and when the instructions are executed on the communication device 7100, the communication device 7100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices. Optionally, the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a temporary storage medium.

The present disclosure also proposes a program product, which, when executed by the communication device 7100, enables the communication device 7100 to execute any of the above methods. Optionally, the program product is a computer program product.

The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to execute any one of the above methods.

Claims (33)

A communication method, characterized in that the method comprises: A first signal is determined, and the first signal is determined as a path loss reference signal of a second signal, where the second signal is used to sense a sensing target object. The method according to claim 1, wherein the first signal comprises at least one of the following: Synchronous signal block; Channel state information reference signal; detecting a reference signal; Positioning reference signal; Sidelink positioning reference signal; Sidelink synchronization signal block; Sidelink channel state information reference signal; Sidelink sounding reference signal; Demodulation reference signal of the physical sidelink shared channel; Demodulation reference signal of the physical sidelink control channel; A new reference signal for sensing the target object. The method according to any one of claims 1 to 2, characterized in that the determining the first signal comprises at least one of the following: Acquire a radio resource control signaling sent by an access network device, where the radio resource control signaling includes the first signal information; Acquire a media access control control unit signaling sent by an access network device, where the media access control control unit signaling is used to determine the first signal information; Acquire downlink control information sent by the access network device, where the downlink control information is used to determine the first signal information; Acquire the first signal information from the protocol; Acquire the first signal information from the interface with the perception function entity; Acquire radio resource control signaling for sidelink communication, wherein the radio resource control signaling for sidelink communication includes the first signal information; Acquire media access control control unit signaling for sidelink communication, wherein the media access control control unit signaling for sidelink communication is used to determine the first signal information; Acquire direct link control information for sidelink communication, wherein the direct link control information for sidelink communication is used to determine the first signal information; Acquire a physical sidelink shared channel for determining the first signal information; Acquire a physical sidelink control channel for determining the first signal information. The method according to any one of claims 1 to 3, characterized in that the method further comprises: Determine that the first signal fails, determine a third signal, and determine the third signal as a path loss reference signal of the second signal; The third signal includes at least one of the following: A synchronization signal block for obtaining a master information block; Sidelink reference signal. The method according to claim 4, characterized in that the method further comprises: There are multiple sidelink reference signals, and a first reference signal is determined. The first reference signal is used as the third signal. The first reference signal is a reference signal whose signal strength or signal quality meets the conditions among the multiple sidelink reference signals. The method according to claim 4 or 5, characterized in that determining that the first signal is invalid comprises at least one of the following: The first signal cannot be accurately measured, and it is determined that the first signal is invalid; The signal strength of the first signal is less than a second threshold, and the first signal is determined to be invalid; The signal quality of the first signal is less than a third threshold, and the first signal is determined to be invalid; The signal strength change of the first signal is greater than a fourth threshold, and it is determined that the first signal is invalid; If the signal quality change of the first signal is greater than a fifth threshold, it is determined that the first signal is invalid. The method according to claim 1, wherein the first signal comprises at least one of the following: A synchronization signal block for obtaining a master information block; Sidelink reference signal. The method according to claim 7, characterized in that the method further comprises: The number of the sidelink reference signals is multiple, determining a first reference signal, and using the first reference signal as the first signal, wherein the first reference signal is a reference signal whose signal strength or signal quality meets the conditions among the multiple sidelink reference signals. The method according to any one of claims 1 to 7, characterized in that at least one of the following conditions is satisfied between the node sending the second signal and the node receiving the second signal: The node sending the second signal is the first terminal, and the node receiving the second signal is the first terminal or the second terminal; The second signal is sent by the second terminal, and the second signal is received by the first access network device; The node sending the second signal is a first access network device, and the node receiving the second signal is a second terminal; The node that sends the second signal is the second access network device, and the node that receives the second signal is the first access network device or the second access network device. The method according to any one of claims 1 to 9, wherein the second signal comprises at least one of the following: Positioning reference signal; detecting a reference signal; Sidelink positioning reference signal; Sidelink sounding reference signal; Positioning reference signals between access network devices; Probe reference signal between access network devices; A new reference signal for sensing the target object. The method according to claim 8, characterized in that at least one of the first terminal and the second terminal is in any of the following states: Radio Resource Control RRC connected state; RRC inactive state; RRC idle state. The method according to any one of claims 1 to 11, characterized in that the method further comprises: A transmit power for transmitting the second signal is determined based on the path loss reference signal. The method according to any one of claims 1 to 12 is characterized in that the sensing of the sensing target body includes: sensing the sensing target using the second signal reflected by the sensing target body. A communication method, characterized in that the method comprises: A second signal is received, where the second signal is used to sense a sensing target object, and a transmission power of the second signal is determined based on a path loss reference signal of the second signal, where the path loss reference signal of the second signal is the first signal. The method according to claim 14, wherein the first signal comprises at least one of the following: Synchronous signal block; Channel state information reference signal; detecting a reference signal; Positioning reference signal; Sidelink positioning reference signal; Sidelink synchronization signal block; Sidelink channel state information reference signal; Sidelink sounding reference signal; Demodulation reference signal of the physical sidelink shared channel; Demodulation reference signal of the physical sidelink control channel; A new reference signal for sensing the target object. The method according to any one of claims 14-15, characterized in that the first signal is obtained based on at least one of the following: Acquiring based on radio resource control signaling sent by an access network device, where the radio resource control signaling includes the first signal information; Acquiring based on media access control control unit signaling sent by the access network device, wherein the media access control control unit signaling is used to determine the first signal information; Acquiring based on downlink control information sent by the access network device, the downlink control information being used to determine the first signal information; Acquire the first signal information based on the protocol; Acquire the first signal information based on an interface with a perception function entity; Acquiring based on radio resource control signaling for sidelink communication, the radio resource control signaling for sidelink communication including the first signal information; Based on the medium access control control unit signaling acquisition for the sidelink communication, the medium access control unit signaling acquisition for the sidelink communication Control control unit signaling is used to determine the first signal information; Acquiring based on direct link control information for sidelink communication, the direct link control information for sidelink communication being used to determine the first signal information; Acquiring based on a physical sidelink shared channel used to determine the first signal information; Based on a physical sidelink control channel acquisition used to determine the first signal information. The method according to any one of claims 14 to 16, characterized in that the method further comprises: The first signal fails, and a third signal is determined, and the third signal is determined as a path loss reference signal of the second signal, wherein the third signal includes at least one of the following: A synchronization signal block for obtaining a master information block; Sidelink reference signal. The method according to claim 17 is characterized in that the number of the sidelink reference signals is multiple, the third signal is the first reference signal, and the first reference signal is a reference signal whose signal strength or signal quality meets the conditions among the multiple sidelink reference signals. The method according to claim 17 or 18, characterized in that the first signal failure comprises at least one of the following: The first signal cannot be accurately measured, and the first signal fails; The signal strength of the first signal is less than a second threshold, and the first signal is invalid; The signal quality of the first signal is less than a third threshold, and the first signal is invalid; The signal strength change of the first signal is greater than a fourth threshold, the first signal fails, and the signal strength difference is the difference between the configured signal strength and the current signal strength; If the signal quality change of the first signal is greater than a fifth threshold, it is determined that the first signal is invalid. The method according to claim 14, wherein the first signal comprises at least one of the following: A synchronization signal block for obtaining a master information block; Sidelink reference signal. The method according to claim 20, characterized in that the method further comprises: There are multiple sidelink reference signals, and the first signal is the first reference signal, which is a reference signal whose signal strength or signal quality meets the conditions among the multiple sidelink reference signals. The method according to any one of claims 14 to 21, characterized in that at least one of the following conditions is satisfied between the node sending the second signal and the node receiving the second signal: The node sending the second signal is the first terminal, and the node receiving the second signal is the first terminal or the second terminal; The second signal is sent by the second terminal, and the second signal is received by the first access network device; The node sending the second signal is a first access network device, and the node receiving the second signal is a second terminal; The node that sends the second signal is the second access network device, and the node that receives the second signal is the first access network device or the second access network device. The method according to any one of claims 14 to 22, wherein the second signal comprises at least one of the following: Positioning reference signal; detecting a reference signal; Sidelink positioning reference signal; Sidelink sounding reference signal; Positioning reference signals between access network devices; Probe reference signal between access network devices; A new reference signal for sensing the target object. The method according to claim 22, characterized in that at least one of the first terminal and the second terminal is in any of the following states: Radio Resource Control RRC connected state; RRC inactive state; RRC idle state. The method according to any one of claims 14 to 24 is characterized in that the sensing of the sensing target body comprises: sensing the sensing target using the second signal reflected by the sensing target body. The method according to any one of claims 14 to 25, characterized in that the method further comprises: Determining a measured value of the second signal based on at least one of the following: Reference signal received power RSRP; The received power RSRPP of the reference signal on the i-th path; Reference signal received quality RSRQ; Signal to Interference and Noise Ratio SINR; An angle of arrival of the second signal; a departure angle of the second signal; an arrival time of the second signal; a time difference of arrival of the second signal; a time difference between receiving and sending the second signal; The distance between the sensing target and the node sending the second signal; The distance between the sensing target and the node receiving the second signal; The moving speed of the sensing target object; The Doppler frequency deviation of the second signal. A communication method, characterized in that the method comprises: The first node determines a first signal, and determines the first signal as a path loss reference signal of a second signal, where the second signal is used to sense a sensing target object; The second node receives the second signal. A first node, characterized by comprising: The processing module determines a first signal and determines the first signal as a path loss reference signal of a second signal, where the second signal is used to sense a sensing target. A second node, characterized by comprising: The transceiver module receives a second signal, where the second signal is used to sense a sensing target object. The second signal is received based on a path loss reference signal of the second signal. The transmission power of the second signal is determined based on the path loss reference signal of the second signal. The path loss reference signal of the second signal is the first signal. A first node, characterized by comprising: one or more processors; The first node is used to execute the communication method according to any one of claims 1 to 13. A second node, characterized by comprising: one or more processors; The second node is used to execute the communication method according to any one of claims 14 to 26. A communication system, characterized in that it comprises a first node and a second node, wherein the first node is configured to implement the communication method described in any one of claims 1-13, and the second node is configured to implement the communication method described in any one of claims 14-26. A storage medium storing instructions, characterized in that when the instructions are executed on a communication device, the communication device executes the communication method as described in any one of claims 1-13 or 14-26.