Method, apparatus and terminal for beam failure detection

Abstract

The application discloses a beam failure detection method, device and terminal, and belongs to the technical field of communication. The beam failure detection method of the application embodiment comprises the following steps: a terminal determines whether a beam failure (BF) event occurs or does not occur according to a first counter and / or a second counter; wherein the first counter corresponds to a first threshold value, and the first threshold value is a threshold value corresponding to LBT failure; the second counter corresponds to a second threshold value, and the second threshold value is a threshold value corresponding to beam reception failure.

Description

Technical Field

[0001] This application belongs to the field of communication technology, and specifically relates to a method, apparatus and terminal for beam failure detection. Background Technology

[0002] In 5G communication systems, the terminal (User Equipment, also known as terminal equipment or user equipment) can monitor the communication quality of the Physical downlink control channel (PDCCH) by periodically measuring reference signals, and declare beam failure when it finds that the channel cannot provide reliable communication.

[0003] However, considering the unlicensed spectrum of the B52.6 band, the network side may fail to access the channel due to a Listen-Before-Talk (LBT) failure, which may result in the Beaming Failure Detection Reference Signal (BFD RS) not being transmitted. If the terminal still performs beam failure detection based on the aforementioned beam detection mechanism, it will assume that a beam failure event has occurred, thereby reducing the accuracy of beam failure detection. Summary of the Invention

[0004] This application provides a method, apparatus, and terminal for beam failure detection, which can improve the accuracy of beam failure detection.

[0005] In a first aspect, a method for beam failure detection is provided, comprising: a terminal determining whether a beam failure (BF) event has occurred or not based on a first counter and / or a second counter; wherein the first counter corresponds to a first threshold, the first threshold being a threshold corresponding to LBT failure; and the second counter corresponds to a second threshold, the second threshold being a threshold corresponding to beam reception failure.

[0006] Secondly, a beam failure detection device is provided, applied to a terminal. The device includes: a determining module, configured to determine whether a beam failure (BF) event has occurred or not, based on a first counter and / or a second counter; wherein the first counter corresponds to a first threshold, which is a threshold corresponding to LBT failure; and the second counter corresponds to a second threshold, which is a threshold corresponding to beam reception failure.

[0007] Thirdly, a terminal is provided, the terminal including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method described in the first aspect.

[0008] Fourthly, a terminal is provided, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method described in the first aspect.

[0009] Fifthly, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect.

[0010] In a sixth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being used to run programs or instructions to implement the steps of the method described in the first aspect.

[0011] In a seventh aspect, a computer program product is provided, the computer program product being stored in a non-transient storage medium, the program product being executed by at least one processor to perform the steps of the method as described in the first aspect.

[0012] In this embodiment, the terminal determines whether a BF event has occurred or not based on a first counter and / or a second counter. This effectively avoids the problem of increased BFI due to LBT failure, thereby improving the accuracy of beam failure detection. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a wireless communication system provided in an exemplary embodiment of this application.

[0014] Figure 2 This is a flowchart illustrating a beam failure detection method provided in an exemplary embodiment of this application.

[0015] Figure 3 This is a flowchart illustrating a beam failure detection method provided in another exemplary embodiment of this application.

[0016] Figure 4 This is a schematic diagram of the structure of a beam failure detection device provided in an exemplary embodiment of this application.

[0017] Figure 5 This is a schematic diagram of the structure of a terminal provided in an exemplary embodiment of this application. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0019] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0020] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in 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 this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to applications other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0021] Figure 1This diagram illustrates the structure of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), etc. Wearable devices include smartwatches, wristbands, headphones, glasses, etc. It should be noted that this application does not limit the specific type of terminal 11. Network-side device 12 can be a base station or a core network. The base station can be referred to as a node B, evolved node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolved B node (eNB), home B node, home evolved B node, WLAN access point, WiFi node, transmitting and receiving point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this application embodiment, only the base station in the NR system is used as an example, but the specific type of base station is not limited.

[0022] The technical solutions provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0023] like Figure 2 The diagram shown is a flowchart illustrating a beam failure detection method 200 provided in an exemplary embodiment of this application. This method 200 can be executed by, but is not limited to, a terminal, specifically by hardware and / or software installed in the terminal. In this embodiment, the method 200 may include at least the following steps.

[0024] S210, the terminal determines whether a BF event has occurred or not based on the first counter and / or the second counter.

[0025] In this embodiment, the terminal can measure the target reference signal used for beam failure detection at the physical layer and determine whether a beam failure event has occurred based on the measurement results. However, considering that unlicensed frequency bands must comply with regulatory requirements to ensure that all devices can fairly share the resource, such as Listen Before Talk (LBT) and Maximum Channel Occupancy Time (MCOT), taking LBT as an example, when the network side (such as a base station) needs to send information such as the target reference signal, it must first perform LBT on a designated wireless channel to perform energy detection (ED) on the surrounding wireless transmission environment. When the energy is higher than a certain threshold, the transmission channel is determined to be busy, and the network side cannot transmit. In this case, the channel quality measured by the terminal based on the target reference signal will inevitably not meet the transmission requirements, that is, the terminal will determine that the aforementioned designated wireless channel cannot provide reliable communication, and thus declare a beam failure. However, at this time, no actual beam failure has occurred. In response, this application introduces a first counter and uses the first counter and / or a second counter to determine beam failure, thereby improving the accuracy of beam failure detection.

[0026] Based on this, in this embodiment, the first counter corresponds to the first threshold, which is the threshold corresponding to LBT failure. Optionally, the first counter is a counter newly introduced in this application, used to count the number of LBT failures. In this case, the first counter can be set at the physical layer or the Medium Access Control (MAC) layer; that is, the first counter can be a physical layer counter or a MAC layer counter.

[0027] The second counter corresponds to the second threshold, which is the threshold corresponding to beam reception failure. In other words, the second counter is used to count beam failure instances (BFI, which can also be understood as beam failure information or beam failure indication, etc.) so that the terminal can judge the beam failure event based on the second counter.

[0028] In one implementation, the first threshold can be greater than the second threshold, thereby improving the accuracy of the counting results when the terminal counts the first counter and / or the second counter based on the first threshold and the second threshold, and thus more accurately distinguishing between beam failure and LBT failure.

[0029] It is understood that the first counter, the first threshold, the second counter, and the second threshold can be implemented by protocol agreement, higher-level configuration, or network-side configuration, and no restrictions are imposed here.

[0030] In this embodiment, the terminal determines whether a BF event has occurred or not based on the first counter and / or the second counter. This effectively avoids the problem of false increases in BFI due to LBT failure, thereby improving the accuracy of beam failure detection.

[0031] like Figure 3 The diagram shown is a flowchart illustrating a beam failure detection method 300 provided in an exemplary embodiment of this application. This method 300 can be executed by, but is not limited to, a terminal, specifically by hardware and / or software installed in the terminal. In this embodiment, the method 300 may include at least the following steps.

[0032] S310, the terminal determines whether a BF event has occurred or not based on the first counter and / or the second counter.

[0033] The first counter corresponds to the first threshold, which is the threshold corresponding to LBT failure; the second counter corresponds to the second threshold, which is the threshold corresponding to beam reception failure.

[0034] It is understood that, in addition to the relevant description in the method embodiment 200, as a possible implementation of S310, the way in which the terminal determines whether a BF event has occurred or not based on the first counter and / or the second counter may include at least one of the following (11)-(13).

[0035] (11) If the count value of the first counter is not less than a first predetermined value, the BF event is determined to have occurred. That is, when the count value of the first counter reaches the first predetermined value, the terminal may default to beam failure and start the beam failure recovery process.

[0036] For example, assuming the count value of the first counter is A and the first predetermined value is a, then if A >= a, it can be determined that the BF event has occurred.

[0037] Optionally, the counting process of the first counter includes: when the block error rate (BLER) of the detected target reference signal is greater than the first threshold, the count value of the first counter is increased, for example, the first counter is incremented by 1.

[0038] The first counter is either a MAC layer counter or a physical layer counter. That is, when the first counter is a MAC layer counter or a physical layer counter, and the BLER of the detected target reference signal is greater than the first threshold, the count value of the first counter increases.

[0039] In addition, the target reference signal may include, but is not limited to, Channel State Information Reference Signal (CSI-RS), Synchronization Signal and PBCH block (SSB), or other BFD-RS, etc., without limitation.

[0040] Optionally, if the BLER of the detected target reference signal is greater than the first threshold, the terminal reports an LBT failure indication to the terminal's MAC layer.

[0041] In one implementation, if the terminal detects that the BLER of the target reference signal is greater than the first threshold, the terminal determines that LBT has failed, reports the LBT failure indication to the terminal's MAC layer, and increments the count value of the first counter.

[0042] (12) If the sum of the count values ​​of the first counter and the second counter is not less than a second predetermined value, the BF event is determined to have occurred, and the beam failure recovery process can be started.

[0043] For example, assuming the count value of the first counter is A, the count value of the second counter is B, and the second predetermined value is C, then if A + B >= C, it can be determined that the BF event has occurred.

[0044] In this case, the counter of the first counter can be referred to the relevant description in (11).

[0045] The counting process of the second counter may include at least one of the following (121)-(123).

[0046] (121) If the BLER of the detected target reference signal is not greater than the first threshold but greater than the second threshold, the count value of the second counter is increased, for example, the count value of the second counter is incremented by 1.

[0047] (122) When the first counter is a MAC layer counter and the count value of the first counter reaches a fifth predetermined value, the count value of the second counter increases.

[0048] (123) When the first counter is a physical layer counter and the count value of the first counter is not less than the fifth predetermined value, the count value of the second counter increases.

[0049] (13) If the count value of the first counter is not less than a third predetermined value and / or the count value of the second counter is not less than a fourth predetermined value, the BF event is determined to have occurred, and the beam failure recovery process can be started.

[0050] For example, assuming the count value of the first counter is A, the count value of the second counter is B, the third predetermined value is a, and the fourth predetermined value is b, then if A>=a, it can be determined that the BF event has occurred; or if B>=b, it can be determined that the BF event has occurred; or if A>=a and B>=b, it can be determined that the BF event has occurred.

[0051] It should be noted that the first predetermined value, second predetermined value, third predetermined value, fourth predetermined value, and fifth predetermined value mentioned in this application can all be implemented by agreement, high-level configuration, or network-side configuration. Furthermore, the first predetermined value, second predetermined value, third predetermined value, fourth predetermined value, and fifth predetermined value can be the same or different, and no restriction is placed here.

[0052] Of course, as one possible implementation, the terminal, upon determining that a BF event has occurred, reports a beam failure instance (BFI) to the MAC layer and / or resets the first counter.

[0053] For example, when the first counter is a physical layer counter and a BF event is determined to have occurred, the BFI is reported to the MAC layer, and the first counter is reset.

[0054] For example, if the first counter is a MAC layer counter and a BF event is determined to have occurred, the reporting of BFI to the MAC layer can be cancelled, but the first counter needs to be reset.

[0055] S320, execute the scheduled operation.

[0056] The predetermined operation includes at least one of the following (21)-(24).

[0057] (21) When the MAC layer of the terminal receives an LBT failure indication, it resets the first counter.

[0058] (22) The terminal resets the first counter when the first counter times out.

[0059] (23) The MAC layer of the terminal resets the second counter when it receives BFI.

[0060] (24) The terminal resets the second counter if the second counter times out.

[0061] As can be understood from the above (21)-(24), the first counter and the second counter can be independent counters or the same counter. This embodiment does not limit this.

[0062] In addition, the term "reset" mentioned in this embodiment can also be understood as restart, reset, recounting, etc., and is not limited here.

[0063] Based on the foregoing description of beam failure detection method 200 / 300, the beam failure detection process given in this embodiment will be further explained below with reference to the following examples.

[0064] The terminal measures the target reference signal used for beam failure detection at the physical layer, and determines whether a beam failure event has occurred based on the measurement result of the target reference signal, as well as a first counter and / or a second counter. The first counter corresponds to a first threshold, which is a threshold corresponding to LBT failure; the second counter corresponds to a second threshold, which is a threshold corresponding to beam reception failure.

[0065] Based on this, if the BLER of the target reference signal measured by the terminal at the physical layer is greater than the first threshold, it can be determined that the LBT failure is due to the target reference signal being sent at the location where it should have been sent, but the network side did not send the target reference signal because the channel was busy, resulting in the BLER of the target reference signal measured by the terminal being greater than the first threshold.

[0066] At this time, the terminal can start or reset the count value of the first counter. For example, when the first counter is counting at the MAC layer, the terminal can report an LBT indication to the MAC layer, and the count value of the first counter is incremented by 1; or, when the first counter is counting at the physical layer, the count value of the first counter is incremented by 1; when the LBTF_timer (a timer based on the LBT indication, corresponding to the beam failure recovery timer) times out or is reconfigured, the first counter is reset to 0.

[0067] For example, if the first counter reaches a fifth predetermined value (the first counter can be in the physical layer or the MAC layer), it is assumed that a BFI event has occurred, and the second counter (BFI_COUNTER) is incremented by 1. When the second counter reaches a certain value, the MAC layer triggers the beam failure procedure.

[0068] Alternatively, if the first counter reaches a predetermined value, a beam failure is declared directly, triggering the beam failure recovery process (generally declared at the MAC layer), and then the first counter is reset to 0.

[0069] Alternatively, the terminal can combine the first counter and the second counter (BFI_COUNTER counter) to determine whether beam failure has occurred and trigger a beam failure recovery process. The aforementioned combined determination may include at least one of the following (41)-(43).

[0070] (41) The sum of two counters is greater than or equal to a certain value (e.g., A+B>=C).

[0071] (42) Both satisfy the condition of being greater than or equal to the corresponding constant value (A>=a and (and)B>=b).

[0072] (43) One of them satisfies that it is greater than or equal to the corresponding fixed value (A>=a or (or)B>=b).

[0073] Finally, if a beam failure is determined to have occurred, the first counter is reset to 0.

[0074] In this embodiment, the relevant process of determining beam failure by combining the terminal with the first counter and the second counter is further given, which can further improve the reliability of beam failure detection results.

[0075] It should be noted that the beam failure detection method provided in this application embodiment can be executed by a beam failure detection device, or by a control module within that device for executing the beam failure detection method. This application embodiment uses the execution of the beam failure detection method by a beam failure detection device as an example to illustrate the beam failure detection device provided in this application embodiment.

[0076] like Figure 4 The diagram shown is a schematic diagram of a beam failure detection device provided in an exemplary embodiment of this application. The device 400 includes a determination module 410, which is used to determine whether a beam failure (BF) event has occurred or not, based on a first counter and / or a second counter. The first counter corresponds to a first threshold, which is a threshold corresponding to LBT failure. The second counter corresponds to a second threshold, which is a threshold corresponding to beam reception failure.

[0077] In one implementation, the device 400 may further include a configuration module, which is used to configure at least one of the first counter, the second counter, the first threshold, and the second threshold.

[0078] In one implementation, the determining module 410 determines whether a BF event has occurred or not based on a first counter and / or a second counter, including at least one of the following: determining that the BF event has occurred if the count value of the first counter is not less than a first predetermined value; determining that the BF event has occurred if the sum of the count values ​​of the first counter and the second counter is not less than a second predetermined value; and determining that the BF event has occurred if the count value of the first counter is not less than a third predetermined value and / or the count value of the second counter is not less than a fourth predetermined value.

[0079] In one implementation, the counting process of the first counter includes: when the block error rate (BLER) of the detected target reference signal is greater than the first threshold, the count value of the first counter is increased; wherein, the first counter is a Media Access Control (MAC) layer counter or a physical layer counter.

[0080] In one implementation, if the block error rate (BLER) of the detected target reference signal is greater than the first threshold, the determining module 410 is further configured to report an LBT failure indication to the MAC layer of the terminal.

[0081] In one implementation, the counting process of the second counter includes at least one of the following: when the BLER of the detected target reference signal is not greater than the first threshold but greater than the second threshold, the count value of the second counter increases; when the first counter is a MAC layer counter and the count value of the first counter reaches a fifth predetermined value, the count value of the second counter increases; when the first counter is a physical layer counter and the count value of the first counter is not less than the fifth predetermined value, the count value of the second counter increases.

[0082] In one implementation, the device 400 further includes an execution module 420, which is configured to report a beam failure instance (BFI) to the MAC layer and / or reset the first counter when a BF event is determined to have occurred.

[0083] In one implementation, the execution module 420 is further configured to: reset the first counter when the MAC layer of the terminal receives an LBT failure indication; reset the first counter when the first counter times out; reset the second counter when the MAC layer of the terminal receives a BFI; and reset the second counter when the second counter times out.

[0084] The beam failure detection device in this application embodiment can be a device, a device with an operating system, or an electronic device, or it can be a component, integrated circuit, or chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminals 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not specifically limit the type of terminal.

[0085] The beam failure detection device provided in this application embodiment can achieve Figures 2-3 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0086] This application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method described in method embodiments 200 and / or 300. This terminal embodiment corresponds to the above-described terminal-side method embodiments, and all implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and achieve the same technical effect. Specifically, Figure 5 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0087] The terminal 500 includes, but is not limited to, at least some of the following components: radio frequency unit 501, network module 502, audio output unit 503, input unit 504, sensor 505, display unit 506, user input unit 507, interface unit 508, memory 509, and processor 510.

[0088] Those skilled in the art will understand that the terminal 500 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 510 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 5 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0089] It should be understood that, in this embodiment, the input unit 504 may include a graphics processing unit (GPU) 1041 and a microphone 5042. The GPU 5041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 506 may include a display panel 5061, which may be configured in the 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 other input devices 5072. The touch panel 5071 is also called a touch screen. The touch panel 5071 may include a touch detection device and a touch controller. Other input devices 5072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0090] In this embodiment, the radio frequency unit 501 receives downlink data from the network-side device and processes it for the processor 510; additionally, it sends uplink data to the network-side device. Typically, 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, etc.

[0091] The memory 509 can be used to store software programs or instructions and various data. The memory 509 may primarily include a program or instruction storage area and a data storage area. The program or instruction storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 509 may include high-speed random access memory and non-volatile memory, which may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

[0092] Processor 510 may include one or more processing units; optionally, processor 510 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications or instructions, and the modem processor mainly handles wireless communication, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 510.

[0093] The processor 510 is configured to determine whether a beam failure (BF) event has occurred or not, based on a first counter and / or a second counter; wherein the first counter corresponds to a first threshold, which is a threshold corresponding to LBT failure; and the second counter corresponds to a second threshold, which is a threshold corresponding to beam reception failure.

[0094] In one implementation, the step of the processor 510 determining whether a BF event has occurred or not based on a first counter and / or a second counter includes at least one of the following: determining that the BF event has occurred if the count value of the first counter is not less than a first predetermined value; determining that the BF event has occurred if the sum of the count values ​​of the first counter and the second counter is not less than a second predetermined value; and determining that the BF event has occurred if the count value of the first counter is not less than a third predetermined value and / or the count value of the second counter is not less than a fourth predetermined value.

[0095] In one implementation, the counting process of the first counter includes: when the block error rate (BLER) of the detected target reference signal is greater than the first threshold, the count value of the first counter is increased; wherein, the first counter is a Media Access Control (MAC) layer counter or a physical layer counter.

[0096] In one implementation, if the block error rate (BLER) of the detected target reference signal is greater than the first threshold, the processor 510 is further configured to report an LBT failure indication to the MAC layer of the terminal.

[0097] In one implementation, the counting process of the second counter includes at least one of the following: when the BLER of the detected target reference signal is not greater than the first threshold but greater than the second threshold, the count value of the second counter increases; when the first counter is a MAC layer counter and the count value of the first counter reaches a fifth predetermined value, the count value of the second counter increases; when the first counter is a physical layer counter and the count value of the first counter is not less than the fifth predetermined value, the count value of the second counter increases.

[0098] In one implementation, the processor 510 is further configured to, upon determining that a BF event has occurred, report a beam failure instance (BFI) to the MAC layer and / or reset the first counter.

[0099] In one implementation, the processor 510 is further configured to: reset the first counter when the MAC layer of the terminal receives an LBT failure indication; reset the first counter when the first counter times out; reset the second counter when the MAC layer of the terminal receives a BFI; and reset the second counter when the second counter times out.

[0100] In this embodiment of the application, the terminal determines whether a BF event has occurred or not based on a first counter and / or a second counter. This effectively avoids the problem of false increases in BFI due to LBT failure, thereby improving the accuracy of beam failure detection.

[0101] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described beam failure detection method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0102] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM).

[0103] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is used to run network-side device programs or instructions to implement the various processes of the above-described beam failure detection method embodiment and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0104] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0105] This application also provides a computer program product, which includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor. When the program or instructions are executed by the processor, they implement the various processes of the above-described beam failure detection method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0106] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, 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 functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0107] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0108] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method for beam failure detection, characterized in that, include: The terminal determines whether a beam failure (BF) event has occurred or not based on the first counter and the second counter. The counting process of the first counter includes: when the block error rate (BLER) of the detected target reference signal is greater than a first threshold, the count value of the first counter increases, and the first threshold is the threshold corresponding to LBT failure. The counting process of the second counter includes: when the BLER of the detected target reference signal is not greater than the first threshold but greater than the second threshold, the count value of the second counter increases, and the second threshold is the threshold corresponding to the beam reception failure; The step of determining whether a BF event has occurred or not based on a first counter and a second counter includes at least one of the following: The BF event is determined to have occurred if the sum of the count values ​​of the first counter and the second counter is not less than a second predetermined value. The BF event is determined to have occurred if the count value of the first counter is not less than a third predetermined value and the count value of the second counter is not less than a fourth predetermined value.

2. The method as described in claim 1, characterized in that, The first counter is a Media Access Control (MAC) layer counter or a physical layer counter.

3. The method as described in claim 1, characterized in that, If the block error rate (BLER) of the detected target reference signal is greater than the first threshold, the terminal reports an LBT failure indication to the terminal's MAC layer.

4. The method as described in claim 1, characterized in that, The counting process of the second counter also includes at least one of the following: When the first counter is a MAC layer counter and the count value of the first counter reaches a fifth predetermined value, the count value of the second counter increases; When the first counter is a physical layer counter and the count value of the first counter is not less than the fifth predetermined value, the count value of the second counter increases.

5. The method as described in claim 1, characterized in that, After the terminal determines whether a BF event has occurred or not based on a first counter and / or a second counter, the method further includes at least one of the following: If the terminal determines that a BF event has occurred, it reports a beam failure instance (BFI) to the MAC layer and / or resets the first counter.

6. The method according to any one of claims 1-5, characterized in that, The method further includes at least one of the following: Upon receiving an LBT failure indication, the MAC layer of the terminal resets the first counter; If the first counter times out, the terminal resets the first counter. Upon receiving a BFI, the MAC layer of the terminal resets the second counter; If the second counter times out, the terminal resets the second counter.

7. A device for beam failure detection, characterized in that, Applied to a terminal, the device includes: The determination module is used to determine whether a beam failure (BF) event has occurred or not, based on a first counter and a second counter. The counting process of the first counter includes: when the block error rate (BLER) of the detected target reference signal is greater than a first threshold, the count value of the first counter increases, where the first threshold is the threshold corresponding to LBT failure. The counting process of the second counter includes: when the BLER of the detected target reference signal is not greater than the first threshold but greater than a second threshold, the count value of the second counter increases, where the second threshold is the threshold corresponding to beam reception failure. The step of determining whether a BF event has occurred or not, based on a first counter and a second counter, includes at least one of the following: The BF event is determined to have occurred if the sum of the count values ​​of the first counter and the second counter is not less than a second predetermined value. The BF event is determined to have occurred if the count value of the first counter is not less than a third predetermined value and the count value of the second counter is not less than a fourth predetermined value.

8. The apparatus as claimed in claim 7, characterized in that, The first counter is a Media Access Control (MAC) layer counter or a physical layer counter.

9. The apparatus as claimed in claim 7, characterized in that, If the block error rate (BLER) of the detected target reference signal is greater than the first threshold, the determining module is also used to report an LBT failure indication to the MAC layer of the terminal.

10. The apparatus as claimed in claim 7, characterized in that, The counting process of the second counter also includes at least one of the following: When the first counter is a MAC layer counter and the count value of the first counter reaches a fifth predetermined value, the count value of the second counter increases; When the first counter is a physical layer counter and the count value of the first counter is not less than the fifth predetermined value, the count value of the second counter increases.

11. The apparatus as claimed in claim 7, characterized in that, The device further includes an execution module, which is configured to, upon determining that a BF event has occurred, report a beam failure instance (BFI) to the MAC layer and / or reset the first counter.

12. The apparatus as claimed in claim 11, characterized in that, The execution module is also used for at least one of the following: Upon receiving an LBT failure indication, the MAC layer of the terminal resets the first counter; If the first counter times out, the terminal resets the first counter. Upon receiving a BFI, the MAC layer of the terminal resets the second counter; If the second counter times out, the terminal resets the second counter.

13. A terminal, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the beam failure detection method as described in any one of claims 1 to 6.

14. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the beam failure detection method as described in any one of claims 1-6.

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