Patent Application
20250220473
This application relates to the field of integrated sensing and communication technologies, and specifically, to a link monitoring method and apparatus, and a terminal.
A radio link monitoring (RLM) procedure mainly includes:
The RLM-RS may be a synchronization signal and PBCH block (SSB) signal, a channel state information reference signal (CSI-RS), or a combination thereof.
The IS is reported provided that one reference signal (RS) meets a condition.
The OOS is reported only when all RSs meet the condition.
However, the current radio link monitoring procedure is not applicable to an integrated sensing and communication scenario.
According to a first aspect, a link monitoring method is provided, and includes:
A terminal detects a target signal.
The terminal performs a measurement based on the target signal, and obtains link performance corresponding to the target signal, where
According to a second aspect, a link monitoring apparatus is provided, and includes:
According to a third aspect, a terminal is provided. The terminal includes a processor and a memory, the memory stores a program or an instruction that is executable on the processor, and the program or the instruction is executed by the processor to implement the steps of the method according to the first aspect.
According to a fourth aspect, a terminal is provided, and includes a processor and a communication interface. The communication interface is configured to detect a target signal; and perform a measurement based on the target signal, and obtain link performance corresponding to the target signal, where
According to a fifth aspect, a link monitoring system is provided, and includes a terminal and a network side device. The terminal may be configured to perform the steps of the link monitoring method according to the first aspect.
According to a sixth aspect, a readable storage medium is provided. The readable storage medium stores a program or an instruction, and the program or the instruction is executed by a processor to implement the steps of the method according to the first aspect.
According to a seventh aspect, a chip is provided. The chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or an instruction to implement the method according to the first aspect.
According to an eighth aspect, a computer program/program product is provided. The computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the steps of the link monitoring method according to the first aspect.
The following clearly describes the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are some but not all of the embodiments of this application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of this application shall fall within the protection scope of this application.
The terms “first”, “second”, and the like in this specification and claims of this application are used to distinguish between similar objects instead of describing a specific order or sequence. It should be understood that, the terms used in such a way are interchangeable in proper circumstances, so that the embodiments of this application can be implemented in an order other than the order illustrated or described herein. Objects classified by “first” and “second” are usually of a same type, and a quantity of objects is not limited. For example, there may be one or more first objects. In addition, in the description and the claims, “and/or” represents at least one of connected objects, and a character “/” generally represents an “or” relationship between associated objects.
It should be noted that technologies described in the embodiments of this application are not limited to a Long Term Evolution (LTE)/LTE-Advanced (LTE-A) system, and may further be applied to other wireless communication systems such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), single-carrier frequency division multiple access (SC-FDMA), and other systems. The terms “system” and “network” in the embodiments of this application may be used interchangeably. The technologies described can be applied to both the systems and the radio technologies mentioned above as well as to other systems and radio technologies. The following describes a new radio (NR) system for example purposes, and NR terms are used in most of the following descriptions. These technologies can also be applied to applications other than an NR system application, such as a 6th generation (6G) communication system.
Related technologies involved in this application are first described as follows:
A future mobile communication system such as beyond 5th Generation (B5G) systems or a 6G system has a sensing capability in addition to a communication capability. The sensing capability is that one or more devices with the sensing capability can sense information such as a direction, a distance, and a speed of a target object by sending and receiving a radio signal, or detect, track, identify, or image a target object, an event, an environment, or the like. In the future, with the deployment of a small base station with a capability of a high frequency band and high bandwidth such as millimeter wave and terahertz in a 6G network, resolution of sensing is significantly improved when compared with that of a centimeter wave, so that the 6G network can provide a more precise sensing service. A typical sensing function and an application scenario are shown in Table 1.
There are six basic sensing manners according to different sending nodes and receiving nodes of a sensing signal, which specifically include:
It should be noted that in an actual system, one or more different sensing manners may be selected according to different sensing use cases and sensing requirements, and there may be one or more sending nodes and receiving nodes in each sensing manner.
A link monitoring method and apparatus and a terminal provided in the embodiments of this application are described below in detail with reference to the accompanying drawings by using some embodiments and application scenarios thereof.
As shown in
The target signal includes a first signal, or the target signal includes a first signal and a second signal, and the first signal is a reference signal or a sensing signal.
The link performance includes sensing link performance, or the link performance includes sensing link performance and communication link performance.
Optionally, when sensing measurement is performed on the first signal, sensing link performance corresponding to the first signal may be obtained. When sensing measurement and communication measurement are performed on the first signal, sensing link performance and communication link performance corresponding to the first signal may be obtained. When sensing measurement is performed on the first signal and communication measurement is performed on the second signal, sensing link performance corresponding to the first signal and communication link performance corresponding to the second signal may be obtained.
It should be noted that a sensing service may be supported by receiving the sensing signal, for example, a sensing measurement quantity or a sensing result may be obtained by receiving the signal.
It should be noted that at least one first signal is measured to obtain at least the sensing link performance, so as to implement radio link monitoring in an integrated sensing and communication scenario.
Optionally, the first signal in this embodiment of this application may be a signal that does not include transmission information, such as an LTE/NR synchronization and reference signal in a related technology, including a synchronization signal and PBCH block (SSB) signal, a channel state information-reference signal (CSI-RS), a demodulation reference signal (DMRS), a sounding reference signal (SRS), a positioning reference signal (PRS), a phase tracking reference signal (PTRS), or the like; or may be a single-frequency continuous wave (CW), a frequency modulated continuous wave (Frequency Modulated CW, FMCW), and ultra-wideband Gaussian pulses commonly used by radar; or may be a newly designed dedicated signal with a good correlation characteristic and a low peak-to-average power ratio, or a newly designed integrated sensing and communication signal that carries specific information and has better sensing performance. For example, the new signal is obtained by splicing/combining/superposing at least one dedicated sensing signal/reference signal and at least one communication signal in time domain and/or frequency domain. The second signal is similar in form to the first signal. Details are not described herein again.
Optionally, in another embodiment of this application, the sensing link performance includes at least one of the following:
For example, the power value may be a power value of a sensing path.
It should be noted that the power value of the sensing target association signal component is a signal component power that is greatly affected by a sensing target in the received first signal, and may be at least one of the following:
It should be noted that the largest amplitude may alternatively mean that an amplitude exceeds a specific threshold, where the specific threshold may be indicated by a network side device, or may be calculated by the terminal according to a noise power and/or an interference power.
The specific delay/Doppler range is related to a sensing requirement, and may be indicated by the network side device, or may be obtained by the terminal according to the sensing requirement.
Radar detection is used as an example. The power value of the sensing target association signal component is an echo power, and a method for obtaining an echo signal power may be at least one of the following options:
B14. Perform a CFAR based on a three-dimensional delay-Doppler-angle graph obtained by performing 3D-FFT processing on an echo signal, where a sample point with a largest amplitude among sample points whose CFAR exceeds a threshold is used as a target sample point and the amplitude of the sample point with the largest amplitude is used as a target signal amplitude.
It should be noted that, in addition to a method for determining the target signal amplitude by using the sample point with the largest amplitude among the sample points whose CFAR exceeds the threshold as the target sample point, an average value of the sample point with the largest amplitude among the sample points whose CFAR exceeds the threshold and several sample points exceeding the threshold that are nearest to the sample point with the largest amplitude may be used as the target signal amplitude.
For example, the sensing SNR may be a ratio of the power value of the sensing target association signal component to a noise power.
For example, the sensing SINR may be a ratio of the power value of the sensing target association signal component to a sum of a noise power and an interference power.
Specifically, a method for obtaining the SNR/SINR may be as follows:
It should be noted that, in addition to a manner for determining the target signal amplitude by using the sample point with the largest amplitude among the sample points whose CFAR exceeds the threshold as the target sample point, an average value of the sample point with the largest amplitude among the sample points whose CFAR exceeds the threshold and several sample points exceeding the threshold that are nearest to the sample point with the largest amplitude may be used as the target signal amplitude.
It should be noted that a manner for determining an interference/noise sample point may alternatively be to perform further screening according to the foregoing determined interference/noise sample points, where a screening manner is as follows: For the one-dimensional delay graph, several sample points near a delay of 0 are removed, and a remaining interference/noise sample point is used as the noise sample point. For the one-dimensional Doppler graph, several sample points near Doppler being 0 are removed, and a remaining interference/noise sample point is used as the interference/noise sample point. For the two-dimensional delay-Doppler graph, several points near a delay of 0 and interference/noise sample points within a strip range formed by all Doppler ranges are removed, and a remaining noise sample point is used as the interference/noise sample point. For the three-dimensional delay-Doppler-angle graph, several points near a delay of 0 and interference/noise sample points within a slice range formed by all Doppler ranges and all angle ranges are removed, and a remaining interference/noise sample point is used as the interference/noise sample point.
This may include at least one of the following:
This may include at least one of the following:
It should be noted that the A104 and A105 mentioned above may be notified to the terminal by another device (for example, another terminal, an access network device, or a core network device) according to a sensing requirement.
It should be noted that a manner for determining whether the sensing target exists may be: for example, whether a sample point whose amplitude exceeds a specific threshold exists in the one-dimensional or two-dimensional delay/Doppler graph. In a case that the sample point exists, it is considered that the sensing target is detected, and a quantity of sample points whose amplitude exceeds the specific threshold in the one-dimensional or two-dimensional delay/Doppler graph is considered as a quantity of sensing targets.
It should be noted that the RCS information may be RCS information of a single sensing target, or may be RCS information of multiple sensing targets.
It should be noted that the spectrum information may include at least one of the following: a delay power spectrum, a Doppler power spectrum, a delay/distance-Doppler/speed spectrum, an angle power spectrum, a delay/distance-angle spectrum, a Doppler/speed-angle spectrum, or a delay/distance-Doppler/speed-angle spectrum.
Optionally, the communication link performance includes at least one of the following:
Optionally, in another embodiment of this application, a specific implementation in which the terminal performs the measurement based on the target signal, and obtains the link performance corresponding to the target signal is:
The terminal performs one measurement on at least one target signal with a first periodicity through a physical layer, and obtains the link performance corresponding to the target signal.
It should be noted that, optionally, the target signal is configured by the network side device (such as a base station) to the terminal, that is, a specific implementation in which the terminal measures the target signal configured by the network side device is: The terminal performs, at the interval of the first period through the physical layer, one measurement on the at least one target signal configured by the network side device.
It should be noted that the terminal measures the signal based on the first signal and parameter configuration information for the first signal and the second signal. The parameter configuration information is configured by the network side device for the terminal.
It should be noted that parameter configuration information for different signals includes at least one of the following:
The antenna configuration information for the sensing node (the base station or the UE) includes at least one of the following:
Optionally, in another embodiment of this application, after the terminal performs the measurement based on the target signal, and obtains the link performance corresponding to the target signal, the method further includes at least one of the following:
The first case includes one of the following: sensing link performance corresponding to the first signal meets a first condition; sensing link performance corresponding to the first signal meets a first condition and communication link performance corresponding to the first signal meets a second condition; or sensing link performance corresponding to the first signal meets a first condition and communication link performance corresponding to the second signal meets a second condition.
The first information indicates that the sensing link performance corresponding to the first signal meets the first condition, the sensing link performance corresponding to the first signal meets the first condition and the communication link performance corresponding to the first signal meets the second condition, or the sensing link performance corresponding to the first signal meets the first condition and the communication link performance corresponding to the second signal meets the second condition.
The second case includes one of the following: the sensing link performance corresponding to the first signal does not meet the first condition; or the sensing link performance corresponding to the first signal does not meet the first condition and/or the communication link performance corresponding to the first signal does not meet the second condition.
The second information indicates that the sensing link performance corresponding to the first signal does not meet the first condition, or the sensing link performance corresponding to the first signal does not meet the first condition and/or the communication link performance corresponding to the first signal does not meet the second condition.
The third case includes: the sensing link performance corresponding to the first signal does not meet the first condition and/or the communication link performance corresponding to the second signal does not meet the second condition.
The target information indicates that the sensing link performance corresponding to the first signal does not meet the first condition and/or the communication link performance corresponding to the second signal does not meet the second condition.
Optionally, that the terminal reports target information to a higher layer through a physical layer when a third case is met includes at least one of the following:
It can be learned from the foregoing description that reporting cases of the terminal include the following cases:
It should be noted that in this case, the first information indicates that the sensing link performance corresponding to the first signal meets the first condition.
It should be noted that in this case, the second information indicates that the sensing link performance corresponding to the first signal does not meet the first condition.
It should be noted that in this case, the first information indicates that the sensing link performance corresponding to the first signal meets the first condition and the communication link performance corresponding to the first signal meets the second condition.
It should be noted that in this case, the second information indicates that the sensing link performance corresponding to the first signal does not meet the first condition and/or the communication link performance corresponding to the first signal does not meet the second condition.
It should be noted that in this case, the first information indicates that the sensing link performance corresponding to the first signal meets the first condition and the communication link performance corresponding to the second signal meets the second condition.
It should be noted that in this case, the target information indicates that the sensing link performance corresponding to the first signal does not meet the first condition and/or the communication link performance corresponding to the second signal does not meet the second condition.
Optionally, in another embodiment of this application, an implementation in which the terminal reports the target information to the higher layer through the physical layer in the case that the sensing link performance corresponding to the first signal does not meet the first condition and/or the communication link performance corresponding to the second signal does not meet the second condition includes at least one of the following:
It should be noted herein that D21 and D22 are in one group, D23 and D24 are in one group, and D25 and D26 are in one group. During actual application, the terminal measures a signal in an information reporting manner corresponding to the measurement. For example, D21 and D22 are used when the terminal measures the first signal and obtains the sensing link performance. D23 and D24 are used when the terminal measures the first signal and obtains the sensing link performance and the communication link performance. D25 and D26 are used when the terminal measures the first signal and obtains the sensing link performance; and measures the second signal and obtains the communication link performance.
It should be noted herein that the first condition includes at least one of the following:
It should be noted that this case corresponds to a case of detecting multiple targets at the same time.
For example, a position of each bit in the bitmap represents a target, a bit 1 indicates that the target is detected, and a bit 0 indicates that the target is not detected.
It should be noted that this case corresponds to a case of detecting multiple targets at the same time.
It should be noted that the RCS may be RCS information of a single sensing target, or may be RCS information of multiple sensing targets.
For example, the first preset condition is that the RCS reaches K1 square meters, where K1 is a positive real number.
For example, a distance-speed spectrum of the sensing target meets the second preset condition, where the second preset condition herein is that the sensing target can be distinguished on the distance-speed spectrum (an amplitude of a point or a region on the distance-speed spectrum reaches a preset value); or a delay-Doppler spectrum of the sensing target meets the second preset condition, where the second preset condition herein is that the sensing target can be distinguished on the delay-Doppler spectrum (an amplitude of a point or a region on the delay-Doppler spectrum reaches a preset value).
It should be noted that the first parameter may be a first parameter of a single sensing target, or may be first parameters of multiple sensing targets.
For example, the delay of the sensing target meets the third preset condition (for example, the delay meets an interval value). For another example, the distance of the sensing target meets the third preset condition (for example, the distance meets an interval value). For another example, the Doppler of the sensing target meets the third preset condition (for example, the Doppler meets an interval value). For another example, the speed of the sensing target meets the third preset condition (for example, the speed meets an interval value). For another example, the angle information of the sensing target meets the third preset condition (for example, the angle information meets an interval value).
Optionally, because the communication link performance includes at least one of parameters of an RSRP, an RSSI, a PMI, an RI, a CQI, a SNR, a SINR, a BER, a BLER, and the like, the second condition is a threshold corresponding to a specific parameter. For example, that the communication link performance does not meet the second condition may be that the RSRP is lower than a preset value such as −90 dBm, or that the SNR or the SINR is lower than a preset value such as 5 dB.
The following describes in detail specific implementation cases of the foregoing information reporting manners in different cases.
It should be noted that in this case, only the first signal is measured to obtain the sensing link performance corresponding to the first signal.
The terminal separately reports the first information or the second information to the higher layer (for example, an RRC layer) through the physical layer according to the sensing link performance obtained by measuring the first signal; starts a first timer in a case that a first specific condition is met; and determines a sensing link failure in a case that the first timer expires.
The first specific condition includes one of the following:
Specifically, N1 is configured by the network side device, and timing duration of the first timer is also configured by the network side device.
Optionally, during running of the first timer, the first timer is stopped in a case that a second specific condition is met.
The second specific condition includes one of the following:
Specifically, N2 is configured by the network side device.
After determining the sensing link failure, the terminal performs radio resource control RRC reestablishment; or the terminal reports measurement-related information to a network side device, where the measurement-related information includes at least one of the following: the sensing link failure, a cause of the sensing link failure, a measurement value of sensing link performance, a communication link failure, a cause of a communication link failure, or a measurement value of communication link performance.
It should be noted that in this case, the first signal is measured to obtain the sensing link performance corresponding to the first signal and the communication link performance corresponding to the first signal.
The terminal separately reports the first information or the second information to the higher layer (for example, an RRC layer) through the physical layer according to the sensing link performance and the communication link performance obtained by measuring the first signal; starts a first timer in a case that a first specific condition is met; and determines a sensing link failure in a case that the first timer expires.
The first specific condition includes one of the following:
Specifically, N1 is configured by the network side device, and timing duration of the first timer is also configured by the network side device.
Optionally, during running of the first timer, the first timer is stopped in a case that a second specific condition is met.
The second specific condition includes one of the following:
Specifically, N2 is configured by the network side device.
After determining the sensing link failure, the terminal performs radio resource control RRC reestablishment; or the terminal reports measurement-related information to a network side device, where the measurement-related information includes at least one of the following: the sensing link failure, a cause of the sensing link failure, a measurement value of sensing link performance, a communication link failure, a cause of a communication link failure, or a measurement value of communication link performance.
It should be noted that in this case, the first signal and the second signal are measured to obtain the sensing link performance corresponding to the first signal and the communication link performance corresponding to the second signal.
The terminal separately reports the first information or the target information to the higher layer (for example, an RRC layer) through the physical layer according to the sensing link performance obtained by measuring the first signal and the communication link performance obtained by measuring the second signal; starts a first timer in a case that a first specific condition is met; and determines a sensing link failure in a case that the first timer expires.
The first specific condition includes:
In general, the first specific condition means that a quantity of third information, fourth information, or fifth information continuously reported by the terminal to the higher layer through the physical layer is greater than or equal to the third threshold.
Optionally, during running of the first timer, the first timer is stopped in a case that a second specific condition is met.
The second specific condition includes:
It should be noted that in this case, it may be understood as that a quantity of first information continuously reported by the terminal to the higher layer through the physical layer is greater than or equal to the sixth threshold; a combined quantity of first information and third information continuously reported by the terminal to the higher layer through the physical layer is greater than or equal to the sixth threshold; a combined quantity of first information and fourth information continuously reported by the terminal to the higher layer through the physical layer is greater than or equal to the sixth threshold; a combined quantity of first information and fifth information continuously reported by the terminal to the higher layer through the physical layer is greater than or equal to the sixth threshold; a combined quantity of first information, third information, and fourth information continuously reported by the terminal to the higher layer through the physical layer is greater than or equal to the sixth threshold; a combined quantity of first information, third information, and fifth information continuously reported by the terminal to the higher layer through the physical layer is greater than or equal to the sixth threshold; a combined quantity of first information, fourth information, and fifth information continuously reported by the terminal to the higher layer through the physical layer is greater than or equal to the sixth threshold; or a combined quantity of first information, third information, fourth information, and fifth information continuously reported by the terminal to the higher layer through the physical layer is greater than or equal to the sixth threshold.
After determining the sensing link failure, the terminal performs radio resource control RRC reestablishment, for example, the terminal sends a random access preamble to a network side; or the terminal reports measurement-related information to a network side device, where the measurement-related information includes at least one of the following: the sensing link failure, a cause of the sensing link failure, a measurement value of sensing link performance, a communication link failure, a cause of a communication link failure, or a measurement value of communication link performance.
Optionally, in another embodiment of this application, after step 201, the method further includes:
Optionally, the first message further includes a measurement result of the sensing link performance.
Optionally, the RRC connection release cause includes: the sensing link performance corresponding to the first signal does not meet the first condition.
It should be noted that in this case, an RRC connection release process is triggered when the sensing link performance does not meet a requirement. That is, when an RRC connection is released, the network side device is notified that the sensing link performance does not meet the requirement.
The embodiments of this application are described in detail below during actual application.
Sensing link monitoring procedure: Evaluate whether a signal meets sensing link performance. In a case that a quantity of times that the condition is not met reaches a preset quantity of times, RRC reestablishment is performed.
It should be noted that in this case, a communication link monitoring procedure and a sensing link monitoring procedure are performed independently. Parameters of the two procedures are configured independently. In a case that a timer in any procedure (for example, T1 (corresponding to the first timer) in the sensing link monitoring procedure or T310 in the communication link monitoring procedure) expires, the RRC layer declares a link failure, and UE performs RRC reestablishment.
The following processes are mainly included:
Joint monitoring procedure of the sensing link and the communication link: Evaluate whether the first signal meets sensing link performance and communication link performance. In a case that the first signal does not meet the sensing link performance and the communication link performance and a preset quantity of times is reached, perform RRC reestablishment.
The following processes are mainly included:
The UE measures one or more first signals.
It should be noted that provided that one first signal meets the communication condition, it means that the communication link performance meets the communication condition.
Joint monitoring procedure of the sensing link and the communication link (a total of four states): Evaluate whether a signal meets sensing link performance and communication link performance. In a case that the signal does not meet the sensing link performance and the communication link performance or does not meet any one of the sensing link performance and the communication link performance, and a preset quantity of times is reached, perform RRC reestablishment.
The following processes are mainly included:
Optionally, the UE further measures a second signal configured by the base station to evaluate communication link performance. Parameter configuration information for the first signal and the second signal is configured by the base station.
It should be noted that the first signal and the second signal may be a same signal or different signals, or the first signal and the second signal are a same signal in different time domains or different frequency domains or different code domains (that is, respectively corresponding to two cases: communication link performance evaluation and sensing link performance evaluation share one reference signal, and communication link performance evaluation and sensing link performance evaluation use different reference signals respectively).
The following processes are mainly included:
In addition, the cause of the RRC release further includes changes in a position, a speed, a panel, a battery level, an orientation, and the like of the UE.
The first message may further include a measurement result of the sensing link performance.
It should be noted that before S41, the UE needs to measure the first signal to obtain the corresponding sensing link performance.
Optionally, the sensing measurement quantity in the embodiments of this application includes at least one of the following:
Optionally, the foregoing operation may include an addition, subtraction, multiplication, division, a matrix addition/subtraction/multiplication, a matrix transposition, a triangular relationship operation, a square root operation, a power operation, and a threshold detection result and a maximum/minimum value extraction result of the operation result. The operation further includes fast Fourier transform (FFT)/inverse fast Fourier transform (IFFT), discrete Fourier transform (DFT)/inverse discrete Fourier transform (IDFT), 2D-FFT, 3D-FFT, matched filtering, autocorrelation calculation, wavelet transform, digital filtering, a threshold detection result of the foregoing operation result, a maximum/minimum value extraction result, and the like.
For example, the result of the operation on the I channels of data and the Q channels of data may be determined and obtained according to I×cos(theta)+Q×sin(theta), where theta is an angle value, I represents the I channels of data, and Q represents the Q channels of data.
The second-level measurement quantity may be considered as a basic measurement quantity.
The third-level measurement quantity may be considered as a basic attribute/state of the sensing target.
Optionally, the sensing measurement quantity may further include corresponding tag information, where the tag information includes at least one of the following:
Optionally, the sensing result mentioned in the embodiments of this application includes at least one of the following:
To sum up, the embodiments of this application provide the sensing link monitoring procedure and the joint sensing and communication link monitoring procedure, so that it can be found in time that sensing performance of a link does not meet a requirement, to find a new link to meet the sensing requirement.
The link monitoring method provided in the embodiments of this application may be performed by a link monitoring apparatus. In the embodiments of this application, the link monitoring apparatus provided in the embodiments of this application is described by using an example in which the link monitoring apparatus performs the link monitoring method.
As shown in
Optionally, the detection module 401 is configured to:
Optionally, after the obtaining module performs the measurement based on the target signal, and obtains the link performance corresponding to the target signal, the apparatus further includes at least one of the following:
The first case includes one of the following: sensing link performance corresponding to the first signal meets a first condition; sensing link performance corresponding to the first signal meets a first condition and communication link performance corresponding to the first signal meets a second condition; or sensing link performance corresponding to the first signal meets a first condition and communication link performance corresponding to the second signal meets a second condition.
The first information indicates that the sensing link performance corresponding to the first signal meets the first condition, the sensing link performance corresponding to the first signal meets the first condition and the communication link performance corresponding to the first signal meets the second condition, or the sensing link performance corresponding to the first signal meets the first condition and the communication link performance corresponding to the second signal meets the second condition.
The second case includes one of the following: the sensing link performance corresponding to the first signal does not meet the first condition; or the sensing link performance corresponding to the first signal does not meet the first condition and/or the communication link performance corresponding to the first signal does not meet the second condition.
The second information indicates that the sensing link performance corresponding to the first signal does not meet the first condition, or the sensing link performance corresponding to the first signal does not meet the first condition and/or the communication link performance corresponding to the first signal does not meet the second condition.
The third case includes: the sensing link performance corresponding to the first signal does not meet the first condition and/or the communication link performance corresponding to the second signal does not meet the second condition.
The target information indicates that the sensing link performance corresponding to the first signal does not meet the first condition and/or the communication link performance corresponding to the second signal does not meet the second condition.
Optionally, the third reporting module is configured to implement at least one of the following:
Optionally, the apparatus further includes:
The first specific condition includes at least one of the following:
Optionally, the apparatus further includes:
The second specific condition includes at least one of the following:
Optionally, after the determining module determines the sensing link failure, the apparatus further includes:
Optionally, the apparatus further includes:
Optionally, the first message further includes a measurement result of the sensing link performance.
Optionally, the RRC connection release cause includes: the sensing link performance corresponding to the first signal does not meet the first condition.
Optionally, the first condition includes at least one of the following:
Optionally, the sensing link performance includes at least one of the following: a power value of a sensing target association signal component;
Optionally, the communication link performance includes at least one of the following:
It should be noted that the apparatus embodiment is an apparatus corresponding to the foregoing method. All implementations in the foregoing method embodiment are applicable to the apparatus embodiment, and a same technical effect can be achieved. Details are not described herein again.
The link monitoring apparatus provided in this embodiment of this application can implement the processes of the method embodiment of
The link monitoring apparatus in this embodiment of this application may be an electronic device, for example, an electronic device with an operating system, or may be a component in the electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or another device other than the terminal. For example, the terminal may include but is not limited to the foregoing listed types of the terminal 11, and the another device may be a server, a network attached storage (NAS), or the like. This is not specifically limited in this embodiment of this application.
The link monitoring apparatus provided in this embodiment of this application can implement the processes of the method embodiment of
An embodiment of this application further provides a terminal, including a processor and a communication interface. The processor is configured to detect a target signal; and perform a measurement based on the target signal, and obtain link performance corresponding to the target signal, where
Optionally, the processor is configured to:
Optionally, the communication interface is further configured to implement at least one of the following:
The first case includes one of the following: sensing link performance corresponding to the first signal meets a first condition; sensing link performance corresponding to the first signal meets a first condition and communication link performance corresponding to the first signal meets a second condition; or sensing link performance corresponding to the first signal meets a first condition and communication link performance corresponding to the second signal meets a second condition.
The first information indicates that the sensing link performance corresponding to the first signal meets the first condition, the sensing link performance corresponding to the first signal meets the first condition and the communication link performance corresponding to the first signal meets the second condition, or the sensing link performance corresponding to the first signal meets the first condition and the communication link performance corresponding to the second signal meets the second condition.
The second case includes one of the following: the sensing link performance corresponding to the first signal does not meet the first condition; or the sensing link performance corresponding to the first signal does not meet the first condition and/or the communication link performance corresponding to the first signal does not meet the second condition.
The second information indicates that the sensing link performance corresponding to the first signal does not meet the first condition, or the sensing link performance corresponding to the first signal does not meet the first condition and/or the communication link performance corresponding to the first signal does not meet the second condition.
The third case includes: the sensing link performance corresponding to the first signal does not meet the first condition and/or the communication link performance corresponding to the second signal does not meet the second condition.
The target information indicates that the sensing link performance corresponding to the first signal does not meet the first condition and/or the communication link performance corresponding to the second signal does not meet the second condition.
Optionally, the communication interface is configured to implement at least one of the following:
Optionally, the processor is further configured to:
The first specific condition includes at least one of the following:
Optionally, the processor is further configured to:
The second specific condition includes at least one of the following:
Optionally, the processor is further configured to:
The communication interface is configured to report measurement-related information to a network side device, where the measurement-related information includes at least one of the following: the sensing link failure, a cause of the sensing link failure, a measurement value of sensing link performance, a communication link failure, a cause of a communication link failure, or a measurement value of communication link performance.
Optionally, the communication interface is further configured to:
Optionally, the first message further includes a measurement result of the sensing link performance.
Optionally, the RRC connection release cause includes: the sensing link performance corresponding to the first signal does not meet the first condition.
Optionally, the first condition includes at least one of the following:
Optionally, the sensing link performance includes at least one of the following: a power value of a sensing target association signal component;
Optionally, the communication link performance includes at least one of the following:
The terminal embodiment corresponds to the terminal side method embodiment, each implementation process and implementation of the method embodiment can be applied to the terminal embodiment, and a same technical effect can be achieved. Specifically,
The terminal 500 includes but is not limited to at least a part of components of a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, and a processor 510, and the like.
A person skilled in the art can understand that the terminal 500 may further include a power supply (such as a battery) that supplies power to each component. The power supply may be logically connected to the processor 510 by using a power supply management system, to implement functions such as charging and discharging management, and power consumption management by using the power supply management system. The terminal structure shown in
It should be understood that in this embodiment of this application, the input unit 504 may include a graphics processing unit (GPU) 5041 and a microphone 5042. The graphics processing unit 5041 processes image data of a static picture or a video obtained by an image capture apparatus (for example, a camera) in a video capture mode or an image capture mode. The display unit 506 may include a display panel 5061, and the display panel 5061 may be configured in a form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 507 includes a touch panel 5071 and another input device 5072. The touch panel 5071 is also referred to as a touchscreen. The touch panel 5071 may include two parts: a touch detection apparatus and a touch controller. The another input device 5072 may include but is not limited to a physical keyboard, a functional button (such as a volume control button or a power on/off button), a trackball, a mouse, and a joystick. Details are not described herein.
In this embodiment of this application, the radio frequency unit 501 receives downlink data from a network side device and then sends the downlink data to the processor 510 for processing; and sends uplink data to the network side device. Usually, the radio frequency unit 501 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
The memory 509 may be configured to store a software program or an instruction and various data. The memory 509 may mainly include a program or instruction storage area and a data storage area. The program or instruction storage area may store an operating system, an application or an instruction required by at least one function (for example, a sound playing function or an image playing function), and the like. In addition, the memory 509 may include a high-speed random access memory, and may further include a non-volatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM), or a flash memory, for example, at least one disk storage device, a flash memory device, or another non-volatile solid-state storage device.
The processor 510 may include one or more processing units. Optionally, an application processor and a modem processor may be integrated into the processor 510. The application processor mainly processes an operating system, a user interface, an application, an instruction, or the like. The modem processor mainly processes wireless communication, for example, a baseband processor. It may be understood that, alternatively, the modem processor may not be integrated into the processor 510.
The processor 510 is configured to:
Optionally, the processor 510 is configured to:
Optionally, the radio frequency unit 501 is further configured to implement at least one of the following:
The first case includes one of the following: sensing link performance corresponding to the first signal meets a first condition; sensing link performance corresponding to the first signal meets a first condition and communication link performance corresponding to the first signal meets a second condition; or sensing link performance corresponding to the first signal meets a first condition and communication link performance corresponding to the second signal meets a second condition.
The first information indicates that the sensing link performance corresponding to the first signal meets the first condition, the sensing link performance corresponding to the first signal meets the first condition and the communication link performance corresponding to the first signal meets the second condition, or the sensing link performance corresponding to the first signal meets the first condition and the communication link performance corresponding to the second signal meets the second condition.
The second case includes one of the following: the sensing link performance corresponding to the first signal does not meet the first condition; or the sensing link performance corresponding to the first signal does not meet the first condition and/or the communication link performance corresponding to the first signal does not meet the second condition.
The second information indicates that the sensing link performance corresponding to the first signal does not meet the first condition, or the sensing link performance corresponding to the first signal does not meet the first condition and/or the communication link performance corresponding to the first signal does not meet the second condition.
The third case includes: the sensing link performance corresponding to the first signal does not meet the first condition and/or the communication link performance corresponding to the second signal does not meet the second condition.
The target information indicates that the sensing link performance corresponding to the first signal does not meet the first condition and/or the communication link performance corresponding to the second signal does not meet the second condition.
Optionally, the radio frequency unit 501 is configured to implement at least one of the following:
Optionally, the processor 510 is further configured to:
The first specific condition includes at least one of the following:
Optionally, the processor 510 is further configured to:
The second specific condition includes at least one of the following:
Optionally, the processor 510 is further configured to:
The communication interface is configured to report measurement-related information to a network side device, where the measurement-related information includes at least one of the following: the sensing link failure, a cause of the sensing link failure, a measurement value of sensing link performance, a communication link failure, a cause of a communication link failure, or a measurement value of communication link performance.
Optionally, the radio frequency unit 501 is further configured to:
Optionally, the first message further includes a measurement result of the sensing link performance.
Optionally, the RRC connection release cause includes: the sensing link performance corresponding to the first signal does not meet the first condition.
Optionally, the first condition includes at least one of the following:
Optionally, the sensing link performance includes at least one of the following:
Optionally, the communication link performance includes at least one of the following: a reference signal received power RSRP, a received signal strength indication RSSI, a precoding matrix indicator PMI, a rank indicator RI, a channel quality indicator CQI, a SNR, a SINR, a bit error rate BER, or a block error rate BLER.
In this embodiment of this application, the at least one first signal is measured to obtain at least the sensing link performance, so as to implement radio link monitoring in an integrated sensing and communication scenario.
An embodiment of this application further provides a readable storage medium. The readable storage medium stores a program or an instruction, and the program or the instruction is executed by a processor to implement the processes of the foregoing embodiment of the link monitoring method, and a same technical effect can be achieved. To avoid repetition, details are not described herein again.
The processor is a processor in the terminal in the foregoing embodiments. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk, or an optical disc.
Optionally, as shown in
An embodiment of this application further provides a chip. The chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the processes of the foregoing embodiment of the link monitoring method, and a same technical effect can be achieved. To avoid repetition, details are not described herein again.
It should be understood that the chip mentioned in this embodiment of this application may also be referred to as a system-level chip, a system chip, a chip system, or a system on chip.
An embodiment of this application further provides a computer program/program product. The computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the processes of the foregoing embodiment of the link monitoring method, and a same technical effect can be achieved. To avoid repetition, details are not described herein again.
An embodiment of this application further provides a link monitoring system, including a terminal and a network side device. The terminal may be configured to perform the steps of the foregoing link monitoring method.
It should be noted that, in this specification, the term “include”, “comprise”, or any other variant thereof is intended to cover a non-exclusive inclusion, so that a process, a method, an article, or an apparatus that includes a list of elements not only includes those elements but also includes other elements which are not expressly listed, or further includes elements inherent to this process, method, article, or apparatus. In absence of more constraints, an element preceded by “includes a . . . ” does not preclude the existence of other identical elements in the process, method, article, or apparatus that includes the element. In addition, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing the functions in a basically simultaneous manner or in opposite order based on the functions involved. For example, the described methods may be performed in a different order from the described order, and various steps may be added, omitted, or combined. In addition, features described with reference to some examples may be combined in other examples.
Based on the descriptions of the foregoing implementations, a person skilled in the art may clearly understand that the method in the foregoing embodiment may be implemented by software in addition to a necessary universal hardware platform or by hardware only. In most circumstances, the former is a preferred implementation. Based on such an understanding, the technical solutions of this application essentially or the part contributing to the related art may be implemented in a form of a computer software product. The computer software product is stored in a storage medium (for example, a ROM/RAM, a floppy disk, or an optical disc), and includes several instructions for instructing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, a network device, or the like) to perform the methods described in the embodiments of this application.
The embodiments of this application are described above with reference to the accompanying drawings, but this application is not limited to the foregoing specific implementations, and the foregoing specific implementations are only illustrative and not restrictive. Under the enlightenment of this application, a person of ordinary skill in the art can make many forms without departing from the purpose of this application and the protection scope of the claims, all of which fall within the protection of this application.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202211146463.X | Sep 2022 | CN | national |
This application is a continuation of PCT Application No. PCT/CN2023/118444 filed on Sep. 13, 2023, which claims priority to Chinese Patent Application No. 202211146463.X filed on Sep. 20, 2022, which are incorporated herein by reference in their entireties.
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/CN2023/118444 | Sep 2023 | WO |
| Child | 19084195 | US |
