WO2021196162A1 - 测量模式转换方法、终端设备和网络设备 - Google Patents
测量模式转换方法、终端设备和网络设备 Download PDFInfo
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- WO2021196162A1 WO2021196162A1 PCT/CN2020/083219 CN2020083219W WO2021196162A1 WO 2021196162 A1 WO2021196162 A1 WO 2021196162A1 CN 2020083219 W CN2020083219 W CN 2020083219W WO 2021196162 A1 WO2021196162 A1 WO 2021196162A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
Definitions
- This application relates to the field of communications, and more specifically, to a measurement mode conversion method, terminal equipment, and network equipment.
- the terminal device can perform beam failure detection (BFD, Beam Failure Detection) and beam failure recovery (BFR, Beam Failure Recovery) processes based on the network configuration.
- Beam failure detection means that the terminal device detects the beam failure on the synchronization signal block (SSB, SS/PBCH Block)/channel state information (CSI, Channel State Information)-reference signal (RS, Reference Signal) configured in the network.
- Beam failure recovery is used by the terminal equipment to indicate a new SSB/CSI-RS to the serving cell.
- the Medium Access Control (MAC, Medium Access Control) layer of the terminal device detects the beam failure by continuously counting the beam failure instance indications from the physical layer.
- the physical layer measurement used for BFD can be loosely measured due to energy-saving considerations; however, how the terminal device performs the conversion of the BFD measurement mode is an unresolved problem.
- the embodiments of the present application provide measurement mode conversion, terminal equipment and network equipment, which can realize the conversion of terminal equipment between different BFD measurement modes.
- the embodiment of the present application proposes a measurement mode conversion method, which is applied to a terminal device, and includes:
- the terminal device switches between the first BFD measurement mode and the second BFD according to the configuration message
- the conversion condition between different BFD measurement modes is related to at least one of the number of beam failure instance indications, the length of time since the most recent reception of the beam failure instance indication, and the number of beam success instance indications.
- the embodiment of the application provides a measurement mode conversion method, which is applied to a network device, and includes:
- An embodiment of the present application provides a terminal device, including:
- the MAC layer module is used to switch the terminal device between the first BFD measurement mode and the second BFD measurement mode according to the configuration message;
- the conversion condition between different BFD measurement modes is related to at least one of the number of beam failure instance indications, the length of time since the most recent reception of the beam failure instance indication, and the number of beam success instance indications.
- An embodiment of the present application provides a network device, including:
- the sending module is configured to send a configuration message, where the configuration message is used by the terminal device to switch between the first BFD measurement mode and the second BFD measurement mode.
- An embodiment of the present application provides a terminal device, including: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute the above-mentioned application to the terminal device Any of the methods.
- An embodiment of the present application provides a network device, including: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute the above-mentioned application to the network device Any of the methods.
- An embodiment of the present application provides a chip, including a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the method described in any one of the foregoing application to terminal devices.
- An embodiment of the present application provides a chip, including a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the method described in any one of the above applied to network devices.
- the embodiments of the present application provide a computer-readable storage medium for storing a computer program, and the computer program enables a computer to execute any of the methods described above applied to a terminal device.
- An embodiment of the present application provides a computer-readable storage medium for storing a computer program, and the computer program enables a computer to execute the method described in any one of the above-mentioned application to a network device.
- the embodiment of the present application provides a computer program product, including computer program instructions, which cause a computer to execute any of the methods described above applied to terminal devices.
- the embodiments of the present application provide a computer program product, including computer program instructions, which cause a computer to execute any of the methods described above applied to network devices.
- An embodiment of the present application provides a computer program that enables a computer to execute any of the methods described above applied to a terminal device.
- the embodiments of the present application provide a computer program that enables a computer to execute any of the methods described above applied to network devices.
- An embodiment of the application provides a communication system, including:
- the terminal device is used to execute any of the methods described above applied to the terminal device;
- the network device is used to execute any of the methods described above applied to the network device.
- the terminal device After receiving the configuration message, the terminal device realizes the conversion between the different measurement modes according to the conversion conditions between the different BFD measurement modes.
- Fig. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
- Fig. 2 is a flow chart of a method 200 for measuring mode conversion according to an embodiment of the present application.
- Fig. 3 is a schematic diagram of the measurement mode conversion in the first embodiment of the present application.
- Fig. 4 is a schematic diagram of the measurement mode conversion in the second embodiment of the present application.
- Fig. 5 is a schematic diagram of measurement mode conversion in the third embodiment of the present application.
- Fig. 6 is a flow chart of a method 600 for measuring mode conversion according to an embodiment of the present application.
- FIG. 7 is a schematic structural diagram of a terminal device 700 according to an embodiment of the present application.
- FIG. 8 is a schematic structural diagram of a terminal device 800 according to an embodiment of the present application.
- Fig. 9 is a schematic structural diagram of a network device 900 according to an embodiment of the present application.
- FIG. 10 is a schematic structural diagram of a communication device 1000 according to an embodiment of the present application.
- FIG. 11 is a schematic structural diagram of a chip 1100 according to an embodiment of the present application.
- GSM Global System of Mobile Communication
- CDMA Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- GPRS General Packet Radio Service
- LTE Long Term Evolution
- LTE-A Advanced Long Term Evolution
- NR New Radio
- evolution system of NR system LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) unlicensed spectrum, NR-U) system, universal mobile telecommunication system (UMTS), wireless local area network (Wireless Local Area Networks, WLAN), wireless fidelity (Wireless Fidelity, WiFi), next-generation communications (5th-Generation) , 5G) system or other communication systems, etc.
- GSM Global System of Mobile Communication
- CDMA Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- GPRS General Packet Radio Service
- LTE Long Term Evolution
- LTE-A Advanced Long Term Evolution
- NR New Radio
- D2D Device to Device
- M2M Machine to Machine
- MTC machine type communication
- V2V vehicle to vehicle
- the communication system in the embodiments of the present application can be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, can also be applied to a dual connectivity (DC) scenario, and can also be applied to a standalone (SA) deployment.
- CA Carrier Aggregation
- DC dual connectivity
- SA standalone
- the embodiment of the application does not limit the applied frequency spectrum.
- the embodiments of this application can be applied to licensed spectrum or unlicensed spectrum.
- the embodiments of this application describe various embodiments in combination with network equipment and terminal equipment.
- the terminal equipment may also be referred to as User Equipment (UE), access terminal, subscriber unit, user station, mobile station, mobile station, and remote station. Station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
- UE User Equipment
- the terminal device can be a station (STAION, ST) in the WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, and personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, and next-generation communication systems, such as terminal devices in the NR network or Terminal equipment in the public land mobile network (PLMN) network that will evolve in the future.
- STAION, ST station
- SIP Session Initiation Protocol
- WLL Wireless Local Loop
- PDA Personal Digital Assistant
- the terminal device may also be a wearable device.
- Wearable devices can also be called wearable smart devices. It is a general term for using wearable technology to intelligently design everyday wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
- a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
- wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
- a network device can be a device used to communicate with mobile devices.
- the network device can be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, or a device in WCDMA.
- a base station (NodeB, NB) can also be an Evolutional Node B (eNB or eNodeB) in LTE, or a relay station or an access point, or a vehicle-mounted device, a wearable device, and a network device (gNB) in the NR network Or network equipment in the PLMN network that will evolve in the future.
- AP access point
- BTS base station
- gNB network device
- the network equipment provides services for the cell
- the terminal equipment communicates with the network equipment through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell
- the cell may be a network equipment (for example, The cell corresponding to the base station.
- the cell can belong to a macro base station or a base station corresponding to a small cell.
- the small cell here can include: Metro cell, Micro cell, Pico Cells, Femto cells, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
- Figure 1 exemplarily shows one network device 110 and two terminal devices 120.
- the wireless communication system 100 may include multiple network devices 110, and the coverage of each network device 110 may include other numbers.
- the terminal device 120 is not limited in this embodiment of the application.
- the embodiments of the present application can be applied to one terminal device 120 and one network device 110, and can also be applied to one terminal device 120 and another terminal device 120.
- the wireless communication system 100 may also include other network entities such as mobility management entities (Mobility Management Entity, MME), access and mobility management functions (Access and Mobility Management Function, AMF), etc. This is not limited.
- MME Mobility Management Entity
- AMF Access and Mobility Management Function
- FIG. 2 is a flowchart of a measurement mode conversion method 200 according to an embodiment of the present application, including the following steps:
- S210 The terminal device switches between the first BFD measurement mode and the second BFD measurement mode according to the configuration message
- the conversion condition between different BFD measurement modes is related to at least one of the number of beam failure instance indications, the length of time since the most recent reception of the beam failure instance indication, and the number of beam success instance indications.
- the above-mentioned first BFD measurement mode is a normal BFD measurement mode
- the second BFD measurement mode is a relaxing BFD measurement mode (relaxing BFD).
- the first BFD measurement mode and the normal BFD measurement mode refer to the same mode
- the second BFD measurement mode and the relaxed BFD measurement mode refer to the same mode.
- the measurement period of the second BFD measurement mode is greater than the measurement period of the first BFD measurement mode.
- the beam failure indication period (or called the beam failure indication reporting period) of the second BFD measurement mode is greater than or equal to the beam failure indication period of the first BFD measurement mode.
- the physical layer can measure the wireless link quality of each SSB/CSI-RS reference signal.
- the physical layer can evaluate the radio link quality of each SSB/CSI-RS reference signal in the past evaluation period, and compare it with a predetermined threshold. If all these reference signals correspond to the radio link quality If the link quality is lower than the predetermined threshold, the physical layer sends a beam failure instance indication to the MAC layer. In each beam failure indication period, the physical layer may or may not report the beam failure instance indication to the MAC layer.
- both the measurement period and the beam failure indication period can be greater than the corresponding period in the normal BFD measurement mode; therefore, the relaxed BFD measurement mode has lower energy consumption for the terminal equipment compared with the normal BFD measurement mode.
- the terminal device when the terminal device is in the first BFD measurement mode, if the time since the MAC layer received the beam failure instance indication from the physical layer last time reaches the preset threshold and/or the MAC layer receives the physical layer If the consecutive M1 beam success instance indications of the layer are indicated, the terminal device switches to the second BFD measurement mode; wherein, the M1 is a positive integer.
- the embodiment of the present application proposes the following three implementation manners:
- the MAC layer maintains the first timer.
- the MAC layer starts/restarts the first timer every time it receives a beam failure instance indication from the physical layer. If the first timer expires, the physical layer is notified to switch to relaxed BFD Measurement mode.
- the terminal device receives the configuration message, and the configuration message includes at least one of the following:
- the first resource used for beam failure detection is the first resource used for beam failure detection
- the maximum duration of the first timer where the maximum duration of the first timer is equal to the preset threshold.
- the above configuration message is a radio resource control (RRC, Radio Resource Control) reconfiguration message.
- RRC Radio Resource Control
- the foregoing first resource includes SSB/CSI-RS resources.
- the MAC layer In the beam failure indication period of the first BFD measurement mode, when the MAC layer receives the beam failure instance indication from the physical layer, it starts/restarts the first timer; when the first timer expires, it determines the closest to the MAC layer The duration of receiving the beam failure instance indication from the physical layer reaches the preset threshold.
- the unit of the maximum duration of the first timer is a beam failure indication period of the first BFD measurement mode, that is, the maximum duration of the first timer is equal to multiple beam failure indication periods of the first BFD measurement mode.
- the unit of the maximum duration of the first timer is milliseconds (ms).
- the second type the MAC layer maintains a second timer, and starts the second timer when the beam failure detection timer (beamFailureDetectionTimer) times out, and if the second timer times out, informs the physical layer to switch to the relaxed BFD measurement mode.
- beamFailureDetectionTimer beam FailureDetectionTimer
- the terminal device receives the configuration message, and the configuration message includes at least one of the following:
- the first resource used for beam failure detection is the first resource used for beam failure detection
- the maximum duration of the second timer, and the sum of the maximum duration of the second timer and the maximum duration of the beam failure detection timer is equal to the preset threshold.
- the above configuration message is an RRC reconfiguration message.
- the foregoing first resource includes SSB/CSI-RS resources.
- the MAC layer when the MAC layer receives the beam failure instance indication from the physical layer, start/restart the beam failure detection timer;
- the second timer expires, it is determined that the length of time since the last time the MAC layer receives the beam failure instance indication from the physical layer reaches the preset threshold.
- the method further includes: when the second timer is running, when the MAC layer receives a beam failure instance indication from the physical layer, stopping the second timer.
- the unit of the maximum duration of the beam failure detection timer is the beam failure indication period of the first BFD measurement mode/second BFD measurement mode, that is, the maximum duration of the beam failure detection timer is equal to multiple first BFDs.
- the unit of the maximum duration of the aforementioned beam failure detection timer is milliseconds (ms).
- the unit of the maximum duration of the second timer is the beam failure indication period of the first BFD measurement mode, that is, the maximum duration of the second timer is equal to multiple beam failure indication periods of the first BFD measurement mode.
- the unit of the maximum duration of the second timer is milliseconds (ms).
- the third type when the MAC layer receives the continuous M1 beam success instance indication from the physical layer, it notifies the physical layer to switch to the relaxed BFD measurement mode.
- the terminal device receives the configuration message, and the configuration message includes at least one of the following:
- the first resource used for beam failure detection is the first resource used for beam failure detection
- the M1 corresponds to the maximum number of successful beam detections of the entry criterion of the second BFD measurement mode.
- the above configuration message is an RRC reconfiguration message.
- the foregoing first resource includes SSB/CSI-RS resources.
- the terminal device initializes/resets the number of successful beam detections to 0;
- the MAC layer receives a beam success instance indication from the physical layer, the number of beam detection successes is increased by 1; until the number of beam detection successes reaches M1, the MAC layer is determined Received consecutive M1 beam success instance indications from the physical layer.
- the number of successful beam detections is initialized/reset to 0:
- the terminal device enters the first BFD measurement mode
- the terminal device switches from the second BFD measurement mode to the BFD measurement mode
- the MAC layer receives the beam failure instance indication from the physical layer;
- the MAC layer did not receive any indication
- it further includes:
- the physical layer calculates the radio link quality of the beam corresponding to the first resource
- the foregoing channel quality threshold may be a signal-to-noise ratio (SNR, Signal Noise Ratio) threshold.
- the channel quality threshold is obtained in the following manner:
- the channel quality threshold is determined according to the first BLER.
- the first BLER threshold can be configured on a per cell basis through the foregoing RRC signaling.
- the above-mentioned preset first BLER threshold may be a default default value, for example, the default default value is 2% of the first BLER threshold of a Physical Downlink Control Channel (PDCCH, Physical Downlink Control Channel).
- PDCCH Physical Downlink Control Channel
- the terminal device when the terminal device is in the second BFD measurement mode, if the MAC layer receives N1 consecutive beam failure instance indications from the physical layer, the terminal device switches to the first BFD measurement mode; Said N1 is a positive integer.
- the embodiment of the present application proposes the following implementation: when the MAC layer receives a continuous N1 beam failure instance indication from the physical layer, it notifies the physical layer to switch to normal BFD Measurement mode.
- the terminal device receives a configuration message, where the configuration message includes at least one of the following:
- the first resource used for beam failure detection is the first resource used for beam failure detection
- the N1 corresponds to the maximum number of beam detection failures of the departure criterion of the second BFD measurement mode.
- the number of beam detection failures is initialized/reset to 0;
- the MAC layer In the beam failure indication period of the second BFD measurement mode, when the MAC layer receives the beam failure instance indication from the physical layer, it starts/restarts the beam failure detection timer and increases the number of beam detection failures by 1; until the beam detection fails When the number of times reaches N1, it is determined that the MAC layer has received consecutive N1 beam failure instance indications from the physical layer.
- the number of beam detection failures is initialized/reset to 0:
- the beam failure detection timer expires
- the entry criterion for loosening the BFD measurement mode includes: the MAC layer maintains the first timer, and the MAC layer starts/restarts the first timer every time it receives a beam failure instance indication from the physical layer. When the timer times out, the physical layer is notified to switch to the relaxed BFD measurement mode.
- the leaving criterion for relaxing the BFD measurement mode includes: the MAC layer receives consecutive N1 beam failure instance indications from the physical layer.
- the UE in the connected state receives the RRC reconfiguration message of the base station (gNB), and obtains the radio connection monitoring configuration (RadioLinkMonitoringConfig) and/or the beam failure recovery configuration (BeamFailureRecoveryConfig), which includes:
- Failure Detection Resources including SSB/CSI-RS resource configuration for beam failure detection
- beamFailureInstanceMaxCount The maximum number of beam failure instances used for beam failure detection
- beamFailureDetectionTimer used for beam failure detection
- the first timer is the length of the timer used to relax the BFD measurement mode entry criterion, the unit of the first timer is ms or the beam failure indication (report) period, the first The timer duration is greater than the beamFailureDetectionTimer duration.
- N1 is the maximum number of beam failure instances used to relax the BFD measurement mode departure criterion, and N1 is less than beamFailureInstanceMaxCount.
- N1 can also be a predefined value (for example, it is 1 by default).
- the UE is in the normal BFD measurement mode by default.
- the MAC entity when the UE performs beam detection in the normal BFD measurement mode, when the MAC entity receives the beam failure instance indication from the physical layer, the MAC entity starts/restarts the first timer.
- the MAC entity when the MAC entity receives the reconfiguration of the first timer from the RRC layer, it resets the counter (BFI_COUNTER) indicated by the beam failure instance to 0.
- the UE when the UE performs beam detection in the normal BFD measurement mode, if the first timer expires, that is, the MAC entity has not received the beam failure instance indication from the physical layer within the continuous first timer duration in the past, the UE enters relaxation BFD measurement mode, and instruct the physical layer to enable the requirement of relaxing the BFD measurement mode (requirement);
- the UE when the UE performs beam detection in the relaxed BFD measurement mode, if the BFI_COUNTER reaches N1, that is, the MAC entity receives N1 consecutive beam failure instance indications, the UE enters the normal BFD measurement mode and instructs the physical layer to enable the normal BFD measurement mode The requirement.
- Fig. 3 is a schematic diagram of the measurement mode conversion in the first embodiment of the present application.
- the network configuration beamFailureDetectionTimer is 1 beam failure indication (reporting) period, such as 1 beam failure detection period (PBFD, period of BFD), the first timer is 8 PBFD, and N1 is 2.
- the upward arrow indicates that the MAC layer receives the beam failure instance indication sent by the physical layer; the right arrow in the first row indicates the related operation of beamFailureDetectionTimer, and the right arrow in the second row indicates the first timer.
- the network configuration beamFailureDetectionTimer is 1 beam failure indication (reporting) period, such as 1 beam failure detection period (PBFD, period of BFD)
- PBFD beam failure detection period
- N1 is 2.
- the upward arrow indicates that the MAC layer receives the beam failure instance indication sent by the physical layer; the right arrow in the first row indicates the related operation of beamFailureDetectionTimer, and the
- the beamFailureDetectionTimer and the first timer are started/restarted; when the first timer expires, the UE enters the relaxed BFD measurement mode.
- the MAC layer In the relaxed BFD measurement mode, the MAC layer maintains a counter BFI_COUNTER for beam failure detection, and the initial value of BFI_COUNTER is 0. If the MAC layer receives the beam failure instance indication from the physical layer, it starts/restarts beamFailureDetectionTimer, and accumulates BFI_COUNTER by 1, and resets BFI_COUNTER to 0 when the beamFailureDetectionTimer times out. When the BFI_COUNTER reaches N1, the UE enters the normal BFD measurement mode.
- no beam failure instance indication is received for a continuous period of time, which means that the current beam channel condition is good, and it can be predicted that the possibility of beam deterioration in the near future is unlikely. Therefore, the UE can save energy and enter the relaxed BFD measurement mode; N1 beam failure instance indications indicate that the channel starts to deteriorate, and the UE switches back to the normal RFD measurement mode to detect the beam failure early and trigger the beam recovery process when the current beam continues to deteriorate, avoiding beam failure detection and beam failure recovery bands Come more delay.
- the entry criteria for the relaxed BFD measurement mode include: the MAC layer maintains a second timer, starts the second timer when the beamFailureDetectionTimer times out, and if the second timer times out, informs the physical layer to switch to the relaxed BFD measurement mode .
- the leaving criterion for relaxing the BFD measurement mode includes: the MAC layer receives consecutive N1 beam failure instance indications from the physical layer.
- the UE in the connected state receives the RRC reconfiguration message of the gNB, and obtains the RadioLinkMonitoringConfig and/or BeamFailureRecoveryConfig configuration, which includes:
- a.failureDetectionResources configuration including SSB/CSI-RS resource configuration for beam failure detection;
- beamFailureInstanceMaxCount The maximum number of beam failure instances used for beam failure detection
- beamFailureDetectionTimer used for beam failure detection
- a second timer is a timer duration used to relax the BFD measurement entry criterion, and the unit of the second timer is ms or a beam failure indication (report) period.
- N1 is the maximum number of beam failure instances used to relax the BFD measurement mode departure criterion, and N1 is less than beamFailureInstanceMaxCount.
- N1 can also be a predefined value (for example, it is 1 by default).
- the UE is in the normal BFD measurement mode by default.
- the MAC entity starts/restarts the second timer.
- the MAC entity when the MAC entity receives the beam failure instance indication sent by the physical layer, if the second timer is running, the MAC entity stops the second timer.
- the MAC entity when the MAC entity receives the reconfiguration of the second timer from the RRC layer, it resets the BFI_COUNTER to 0.
- the UE when the UE performs beam detection in the normal BFD measurement mode, if the second timer expires, that is, the MAC entity has not received the beam failure instance indication from the physical layer within the past continuous beamFailureDetectionTimer duration plus the second timer duration, Then the UE enters the relaxed BFD measurement mode, and instructs the physical layer to enable the relaxed BFD requirement (requirement).
- the UE when the UE performs beam detection in the relaxed BFD measurement mode, if the BFI_COUNTER reaches N1, that is, the MAC entity receives N1 consecutive beam failure instance indications, the UE enters the normal BFD measurement mode and instructs the physical layer to enable the normal BFD measurement mode The requirement.
- Fig. 4 is a schematic diagram of the measurement mode conversion in the second embodiment of the present application.
- the network configuration beamFailureDetectionTimer is 1 beam failure indication (reporting) cycle, such as 1 PBFD, the second timer is 7 PBFD, and N1 is 2.
- the upward arrow indicates that the MAC layer received the beam failure instance indication sent by the physical layer; the right arrow in the first row indicates the related operation of beamFailureDetectionTimer, and the right arrow in the second row indicates the second timer.
- the network configuration beamFailureDetectionTimer is 1 beam failure indication (reporting) cycle, such as 1 PBFD
- the second timer is 7 PBFD
- N1 is 2.
- the upward arrow indicates that the MAC layer received the beam failure instance indication sent by the physical layer
- the right arrow in the first row indicates the related operation of beamFailureDetectionTimer
- the right arrow in the second row indicates the second timer.
- the beamFailureDetectionTimer is started/restarted; when the beamFailureDetectionTimer times out, the second timer is restarted/started.
- the second timer if the beam failure instance indication is received, the second timer is stopped.
- the second timer expires, the UE enters the relaxed BFD measurement mode.
- the MAC layer In the relaxed BFD measurement mode, the MAC layer maintains a counter BFI_COUNTER for beam failure detection, and the initial value of BFI_COUNTER is 0. If the MAC layer receives the beam failure instance indication from the physical layer, it starts/restarts beamFailureDetectionTimer, and accumulates BFI_COUNTER by 1, and resets BFI_COUNTER to 0 when the beamFailureDetectionTimer times out. When the BFI_COUNTER reaches N1, the UE enters the normal BFD measurement mode.
- the failure to receive the beam failure instance indication for a period of time means that the current beam channel condition is good, so the UE can enter the relaxed BFD measurement mode with energy saving; N1 consecutive beam failures are received
- the instance indication means that the channel starts to deteriorate, and the UE switches back to the normal RFD measurement mode to avoid more delays in beam failure detection and beam failure recovery.
- the difference from the first embodiment is that the timer used to relax the BFD measurement mode entry criteria in the second embodiment is not started every time a beam failure indication from the physical layer is received, but is started after the beamFailureDetectionTimer times out. This way can be Avoid frequently starting/restarting the timer used to relax the BFD measurement mode entry criterion, so that the operation of the timer is simpler and the UE implementation complexity is lower.
- the entry criterion for relaxing the BFD measurement mode includes: the MAC layer receives continuous M1 beam success instance indications from the physical layer.
- the leaving criterion for relaxing the BFD measurement mode includes: the MAC layer receives consecutive N1 beam failure instance indications from the physical layer.
- the UE in the connected state receives the RRC reconfiguration message of the gNB, and obtains the RadioLinkMonitoringConfig and/or BeamFailureRecoveryConfig configuration, which includes:
- a.failureDetectionResources configuration including SSB/CSI-RS resource configuration for beam failure detection;
- beamFailureInstanceMaxCount The maximum number of beam failure instances used for beam failure detection
- beamFailureDetectionTimer used for beam failure detection
- M1 parameter where M1 is the maximum number of beam success instances used to relax the BFD measurement mode entry criterion
- N1 is the maximum number of beam failure instances used to relax the BFD measurement mode departure criterion, and N1 is less than beamFailureInstanceMaxCount.
- N1 can also be a predefined value (for example, it is 1 by default).
- the SNR threshold is determined according to the corresponding BLER threshold.
- the BLER threshold corresponding to the SNR threshold is configured per cell through RRC signaling. Or predefine a default default value of the BLER threshold, for example, the default default value is 2% of the BLER threshold of the PDCCH.
- the physical layer of the UE evaluates the radio link quality of the beam corresponding to each configured SSB/CSI-RS resource used for beam failure detection in each beam failure indication (reporting) cycle. If there is any beam's radio channel If the quality is higher than the SNR threshold for judging the success of the beam, the physical layer sends a beam success instance indication to the MAC layer.
- the UE initializes/resets M1_counter:
- the UE switches from the relaxed BFD measurement mode to the normal measurement BFD mode, or the UE enters the normal BFD measurement mode;
- the MAC layer does not receive the beam success instance indication from the physical layer in the current beam failure indication (reporting) cycle, and there are at least the following two situations:
- Case 2 The MAC layer receives a beam failure instance indication from the physical layer.
- the UE receives reconfiguration for M1 parameters or SSB/CSI-RS resources used for beam failure detection.
- the MAC layer When the UE is in the normal BFD measurement mode, and the MAC layer receives 1 beam success instance indication from the physical layer in the current beam failure indication (reporting) period, it updates M1_counter.
- the way to update M1_counter is to increment M1_counter by 1.
- the UE is in the normal BFD measurement mode by default.
- the UE when the UE performs beam detection in the normal BFD measurement mode, if M1_counter reaches M1, that is, the MAC entity receives continuous M1 beam success instance indications, the UE enters the relaxed BFD measurement mode and instructs the physical layer to enable the relaxed BFD measurement mode The requirement;
- the UE when the UE performs beam detection in the relaxed BFD measurement mode, if the BFI_COUNTER reaches N1, that is, the MAC entity receives N1 consecutive beam failure instance indications, the UE enters the normal BFD measurement mode and instructs the physical layer to enable the normal BFD measurement mode The requirement.
- Fig. 5 is a schematic diagram of measurement mode conversion in the third embodiment of the present application.
- the network configuration M1 is 8, and N1 is 2.
- the upward solid arrow indicates that the MAC layer has received the beam failure instance indication sent by the physical layer
- the dashed arrow in the upward direction indicates that the MAC layer has received the beam success instance indication sent by the physical layer.
- the MAC layer maintains a counter M1_counter for beam successful detection, and the initial value of M1_counter is 0. If the MAC layer receives the beam failure instance indication from the physical layer, it starts/restarts beamFailureDetectionTimer, and accumulates M1_counter by 1, and resets M1_counter to 0 when the beamFailureDetectionTimer times out. When M1_counter reaches M1, the UE enters the relaxed BFD measurement mode.
- the MAC layer In the relaxed BFD measurement mode, the MAC layer maintains a counter BFI_COUNTER for beam failure detection, and the initial value of BFI_COUNTER is 0. If the MAC layer receives the beam failure instance indication from the physical layer, it starts/restarts beamFailureDetectionTimer, and accumulates BFI_COUNTER by 1, and resets BFI_COUNTER to 0 when the beamFailureDetectionTimer times out. When the BFI_COUNTER reaches N1, the UE enters the normal BFD measurement mode.
- consecutive M1 beam failure instances indicate that the representative channel is good enough, and the possibility of link deterioration in the near future can be predicted. Therefore, the UE can save energy and enter the relaxed BFD measurement mode; consecutive N1 beam failure instances indicate the representative channel It starts to deteriorate, and the UE switches back to the normal BFD measurement mode to avoid more delays in beam failure detection and beam failure recovery.
- the physical layer is required to perform the beam success judgment.
- an interlayer interface from the physical layer to the MAC layer may be added, or the beam success indication information may be added on the basis of the existing interface.
- FIG. 6 is a flow chart of an implementation of a measurement mode conversion method 600 according to an embodiment of the present application, including the following steps:
- S610 Send a configuration message, where the configuration message is used by the terminal device to switch between the first BFD measurement mode and the second BFD measurement mode.
- the foregoing first BFD measurement mode is a normal BFD measurement mode
- the second BFD measurement mode is a relaxed BFD measurement mode
- the configuration message includes at least one of the following:
- the first resource used for beam failure detection; the maximum duration of the first timer, and the maximum duration of the first timer is equal to the preset threshold of the entry criterion of the second BFD measurement mode.
- the configuration message includes at least one of the following:
- the first resource used for beam failure detection is the first resource used for beam failure detection
- the maximum duration of the second timer, and the sum of the maximum duration of the second timer and the maximum duration of the beam failure detection timer is equal to the preset threshold of the entry criterion of the second BFD measurement mode.
- the configuration message includes at least one of the following:
- the first resource used for beam failure detection is the first resource used for beam failure detection
- the M1 corresponds to the maximum number of successful beam detections of the entry criterion of the second BFD measurement mode.
- the above configuration message further includes: a first BLER threshold, where the first BLER threshold is used to determine a channel quality threshold for successful beam detection.
- the foregoing configuration message includes at least one of the following:
- the first resource used for beam failure detection is the first resource used for beam failure detection
- the N1 corresponds to the maximum number of beam detection failures of the departure criterion of the second BFD measurement mode.
- FIG. 7 is a schematic structural diagram of a terminal device 700 according to an embodiment of the present application, including:
- the MAC layer module 710 is configured to switch the terminal device between the first BFD measurement mode and the second BFD measurement mode according to the configuration message;
- the conversion condition between different BFD measurement modes is related to at least one of the number of beam failure instance indications, the length of time since the most recent reception of the beam failure instance indication, and the number of beam success instance indications.
- the first BFD measurement mode is a normal BFD measurement mode
- the second BFD measurement mode is a relaxed BFD measurement mode.
- the measurement period of the second BFD measurement mode is greater than the measurement period of the first BFD measurement mode.
- the beam failure indication period of the second BFD measurement mode is greater than or equal to the beam failure indication period of the first BFD measurement mode.
- the terminal device when the terminal device is in the first BFD measurement mode, if the time period since the MAC layer module last received the beam failure instance indication from the physical layer module reaches the preset threshold and/or the MAC layer module receives When the consecutive M1 beam success instance indications from the physical layer module are reached, the terminal device is converted to the second BFD measurement mode; wherein, the M1 is a positive integer.
- the MAC layer module 710 is further configured to receive a configuration message, where the configuration message includes at least one of the following:
- the first resource used for beam failure detection is the first resource used for beam failure detection
- the maximum duration of the first timer where the maximum duration of the first timer is equal to the preset threshold.
- the above-mentioned MAC layer module 710 is used to:
- the MAC layer module In the beam failure indication period of the first BFD measurement mode, when the MAC layer module receives the beam failure instance indication from the physical layer module, it starts/restarts the first timer; when the first timer exceeds From time to time, it is determined that the length of time since the last time the MAC layer module receives the beam failure instance indication from the physical layer module reaches the preset threshold.
- the unit of the maximum duration of the first timer is the beam failure indication period of the first BFD measurement mode.
- the MAC layer module 710 is further configured to receive a configuration message, where the configuration message includes at least one of the following:
- the first resource used for beam failure detection is the first resource used for beam failure detection
- the maximum duration of the second timer, and the sum of the maximum duration of the second timer and the maximum duration of the beam failure detection timer is equal to the preset threshold.
- the above-mentioned MAC layer module 710 is used to:
- the MAC layer module In the beam failure indication period of the first BFD measurement mode, when the MAC layer module receives the beam failure instance indication from the physical layer module, start/restart the beam failure detection timer;
- the second timer expires, it is determined that the length of time since the last time the MAC layer module receives the beam failure instance indication from the physical layer module reaches the preset threshold.
- the aforementioned MAC layer module 710 is further configured to stop the second timer when the MAC layer module receives a beam failure instance indication from the physical layer module when the second timer is running. Timer.
- the unit of the maximum duration of the beam failure detection timer is the beam failure indication period of the first BFD measurement mode/the second BFD measurement mode.
- the unit of the maximum duration of the second timer is the beam failure indication period of the first BFD measurement mode.
- the MAC layer module 710 is further configured to receive a configuration message, where the configuration message includes at least one of the following:
- the first resource used for beam failure detection is the first resource used for beam failure detection
- the M1 and the M1 correspond to the maximum number of successful beam detections of the entry criterion of the second BFD measurement mode.
- the aforementioned MAC layer module 710 is configured to initialize/reset the number of successful beam detections to 0;
- the number of beam detection successes is increased by 1; until the beam detection is successful
- M1 it is determined that the MAC layer module has received consecutive M1 beam success instance indications from the physical layer module.
- the MAC layer module 710 initializes/resets the number of successful beam detections to 0 in at least one of the following situations:
- the terminal device enters the first BFD measurement mode
- the MAC layer module receives the beam failure instance indication from the physical layer module;
- the MAC layer module does not receive any indication
- the configuration message is received.
- the aforementioned terminal device further includes:
- the physical layer module 820 is configured to calculate the wireless link quality of the beam corresponding to the first resource; if the wireless link quality of at least one beam is greater than or equal to the channel quality threshold, the beam is successfully sent to the MAC layer module 710 Instance instructions.
- the channel quality threshold is obtained in the following manner:
- the terminal device when the terminal device is in the second BFD measurement mode, if the MAC layer module receives N1 consecutive beam failure instance indications from the physical layer module, the terminal device is converted to the first BFD measurement mode. Mode; wherein, the N1 is a positive integer.
- the above-mentioned MAC layer module 710 is further configured to receive a configuration message, where the configuration message includes at least one of the following:
- the first resource used for beam failure detection is the first resource used for beam failure detection
- the N1 and N1 correspond to the maximum number of beam detection failures of the departure criterion of the second BFD measurement mode.
- the MAC layer module 710 is used to:
- the MAC layer module In the beam failure indication period of the second BFD measurement mode, when the MAC layer module receives the beam failure instance indication from the physical layer module, it starts/restarts the beam failure detection timer and sets the beam detection failure The number of times is increased by 1; until the number of beam detection failures reaches N1, it is determined that the MAC layer module receives N1 consecutive beam failure instance indications from the physical layer module.
- the MAC layer module 710 is configured to initialize/reset the number of beam detection failures to 0 in at least one of the following cases:
- the beam failure detection timer expires
- the configuration message is received.
- the above configuration message includes: an RRC reconfiguration message.
- FIG. 9 is a schematic structural diagram of a network device 900 according to an embodiment of the present application, including:
- the sending module 910 is configured to send a configuration message, where the configuration message is used by the terminal device to switch between the first BFD measurement mode and the second BFD measurement mode.
- the first BFD measurement mode is a normal BFD measurement mode
- the second BFD measurement mode is a relaxed BFD measurement mode
- the configuration message includes at least one of the following:
- the first resource used for beam failure detection is the first resource used for beam failure detection
- the maximum duration of the first timer where the maximum duration of the first timer is equal to the preset threshold of the entry criterion of the second BFD measurement mode.
- the configuration message includes at least one of the following:
- the first resource used for beam failure detection is the first resource used for beam failure detection
- the maximum duration of the second timer, and the sum of the maximum duration of the second timer and the maximum duration of the beam failure detection timer is equal to the preset threshold of the entry criterion of the second BFD measurement mode.
- the configuration message includes at least one of the following:
- the first resource used for beam failure detection is the first resource used for beam failure detection
- the M1 corresponds to the maximum number of successful beam detections of the entry criterion of the second BFD measurement mode.
- the above configuration message further includes: a first BLER threshold, where the first BLER threshold is used to determine a channel quality threshold for successful beam detection.
- the configuration message includes at least one of the following: a first resource used for beam failure detection; a maximum duration of a beam failure detection timer; N1, where N1 corresponds to the departure of the second BFD measurement mode The maximum number of beam detection failures of the criterion.
- the embodiment of the present application also proposes a communication system, including the above-mentioned terminal device and network device.
- FIG. 10 is a schematic structural diagram of a communication device 1000 according to an embodiment of the present application.
- the communication device 1000 shown in FIG. 10 includes a processor 1010, and the processor 1010 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
- the communication device 1000 may further include a memory 1020.
- the processor 1010 can call and run a computer program from the memory 1020 to implement the method in the embodiment of the present application.
- the memory 1020 may be a separate device independent of the processor 1010, or may be integrated in the processor 1010.
- the communication device 1000 may further include a transceiver 1030, and the processor 1010 may control the transceiver 1030 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.
- the transceiver 1030 may include a transmitter and a receiver.
- the transceiver 1030 may further include an antenna, and the number of antennas may be one or more.
- the communication device 1000 may be a terminal device of an embodiment of the present application, and the communication device 1000 may implement corresponding processes implemented by the terminal device in each method of the embodiments of the present application. For brevity, details are not described herein again.
- the communication device 1000 may be a network device of an embodiment of the present application, and the communication device 1000 may implement corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, details are not described herein again.
- FIG. 11 is a schematic structural diagram of a chip 1100 according to an embodiment of the present application.
- the chip 1100 shown in FIG. 11 includes a processor 1110, and the processor 1110 can call and run a computer program from the memory to implement the method in the embodiment of the present application.
- the chip 1100 may further include a memory 1120.
- the processor 1110 can call and run a computer program from the memory 1120 to implement the method in the embodiment of the present application.
- the memory 1120 may be a separate device independent of the processor 1110, or may be integrated in the processor 1110.
- the chip 1100 may further include an input interface 1130.
- the processor 1110 can control the input interface 1130 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.
- the chip 1100 may further include an output interface 1140.
- the processor 1110 can control the output interface 1140 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
- the chip can be applied to the terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the terminal device in each method of the embodiment of the present application.
- the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the network device in each method of the embodiment of the present application.
- the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, details are not described herein again.
- the chip mentioned in the embodiment of the present application may also be referred to as a system-level chip, a system-on-chip, a system-on-chip, or a system-on-chip, etc.
- the aforementioned processors can be general-purpose processors, digital signal processors (digital signal processors, DSP), ready-made programmable gate arrays (field programmable gate arrays, FPGAs), application specific integrated circuits (ASICs), or Other programmable logic devices, transistor logic devices, discrete hardware components, etc.
- DSP digital signal processors
- FPGA field programmable gate arrays
- ASIC application specific integrated circuits
- the aforementioned general-purpose processor may be a microprocessor or any conventional processor.
- the above-mentioned memory may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
- the volatile memory may be random access memory (RAM).
- the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is to say, the memory in the embodiments of the present application is intended to include, but is not limited to, these and any other suitable types of memory.
- the computer program product includes one or more computer instructions.
- the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
- the computer instruction may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
- the computer instruction may be transmitted from a website, computer, server, or data center through a cable (Such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) to another website site, computer, server or data center.
- the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media.
- the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).
- the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not correspond to the embodiments of the present application.
- the implementation process constitutes any limitation.
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Abstract
测量模式转换方法、终端设备和网络设备,其中方法包括:终端设备根据配置消息,在第一BFD测量模式和第二BFD测量模式之间转换;其中,不同BFD测量模式之间的转换条件与波束失败实例指示的数量、距离最近一次接收到波束失败实例指示的时长及波束成功实例指示的数量中的至少一项相关(S210)。可以实现终端设备在不同测量模式之间的转换。
Description
本申请涉及通信领域,并且更具体地,涉及测量模式转换方法、终端设备和网络设备。
终端设备可以基于网络配置执行波束失败检测(BFD,Beam Failure Detection)和波束失败恢复(BFR,Beam Failure Recovery)过程。波束失败检测即终端设备在网络配置的同步信号块(SSB,SS/PBCH Block)/信道状态信息(CSI,Channel State Information)-参考信号(RS,Reference Signal)上检测到波束失败。波束失败恢复用于终端设备向服务小区指示一个新的SSB/CSI-RS。
在进行BFD时,终端设备的媒质接入控制(MAC,Medium Access Control)层通过对来自物理层的波束失败实例指示进行连续计数来检测波束失败。对于有节能需求的终端设备,用于BFD的物理层测量由于节能的考虑可以进行放松测量;但是,终端设备如何进行BFD测量模式的转换,是目前尚未解决的问题。
发明内容
本申请实施例提供测量模式转换、终端设备和网络设备,能够实现终端设备在不同BFD测量模式之间的转换。
本申请实施例提出一种测量模式转换方法,应用于终端设备,包括:
终端设备根据配置消息,在第一BFD测量模式和第二BFD之间转换;
其中,不同BFD测量模式之间的转换条件与波束失败实例指示的数量、距离最近一次接收到波束失败实例指示的时长及波束成功实例指示的数量中的至少一项相关。
本申请实施例提供一种测量模式转换方法,应用于网络设备,包括:
发送配置消息,所述配置消息用于终端设备进行第一BFD测量模式和第二BFD测量模式之间的转换。
本申请实施例提供一种终端设备,包括:
MAC层模块,用于根据配置消息,将终端设备在第一BFD测量模式和第二BFD测量模式之间转换;
其中,不同BFD测量模式之间的转换条件与波束失败实例指示的数量、距离最近一次接收到波束失败实例指示的时长及波束成功实例指示的数量中的至少一项相关。
本申请实施例提供一种网络设备,包括:
发送模块,用于发送配置消息,所述配置消息用于终端设备进行第一BFD测量模式和第二BFD测量模式之间的转换。
本申请实施例提供一种终端设备,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如上述应用于终端设备的任一项所述的方法。
本申请实施例提供一种网络设备,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如上述应用于网络设备的任一项所述的方 法。
本申请实施例提供一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如上述应用于终端设备的任一项所述的方法。
本申请实施例提供一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如上述应用于网络设备的任一项所述的方法。
本申请实施例提供一种计算机可读存储介质,用于存储计算机程序,所述计算机程序使得计算机执行如上述应用于终端设备的任一项所述的方法。
本申请实施例提供一种计算机可读存储介质,用于存储计算机程序,所述计算机程序使得计算机执行如上述应用于网络设备的任一项所述的方法。
本申请实施例提供一种计算机程序产品,包括计算机程序指令,该计算机程序指令使得计算机执行如上述应用于终端设备的任一项所述的方法。
本申请实施例提供一种计算机程序产品,包括计算机程序指令,该计算机程序指令使得计算机执行如上述应用于网络设备的任一项所述的方法。
本申请实施例提供一种计算机程序,所述计算机程序使得计算机执行如上述应用于终端设备的任一项所述的方法。
本申请实施例提供一种计算机程序,所述计算机程序使得计算机执行如上述应用于网络设备的任一项所述的方法。
本申请实施例提供一种通信系统,包括:
终端设备,用于执行如上述应用于终端设备的任一项所述的方法;
网络设备,用于执行如上述应用于网络设备的任一项所述的方法。
利用本申请实施例,在接收到配置消息之后,终端设备根据不同BFD测量模式之间的转换条件,实现在不同测量模式之间的转换。
图1是本申请实施例的应用场景的示意图。
图2是根据本申请实施例的一种测量模式转换方法200实现流程图。
图3本申请实施例一的测量模式转换示意图。
图4本申请实施例二的测量模式转换示意图。
图5本申请实施例三的测量模式转换示意图。
图6是根据本申请实施例的一种测量模式转换方法600实现流程图。
图7是根据本申请实施例的终端设备700结构示意图。
图8是根据本申请实施例的终端设备800结构示意图。
图9是根据本申请实施例的网络设备900结构示意图。
图10是根据本申请实施例的通信设备1000示意性结构图;
图11是根据本申请实施例的芯片1100的示意性结构图。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述。
需要说明的是,本申请实施例的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用 于区别类似的对象,而不必用于描述特定的顺序或先后次序。同时描述的“第一”、“第二”描述的对象可以相同,也可以不同。
本申请实施例的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、先进的长期演进(Advanced long term evolution,LTE-A)系统、新无线(New Radio,NR)系统、NR系统的演进系统、免授权频谱上的LTE(LTE-based access to unlicensed spectrum,LTE-U)系统、免授权频谱上的NR(NR-based access to unlicensed spectrum,NR-U)系统、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、无线局域网(Wireless Local Area Networks,WLAN)、无线保真(Wireless Fidelity,WiFi)、下一代通信(5th-Generation,5G)系统或其他通信系统等。
通常来说,传统的通信系统支持的连接数有限,也易于实现,然而,随着通信技术的发展,移动通信系统将不仅支持传统的通信,还将支持例如,设备到设备(Device to Device,D2D)通信,机器到机器(Machine to Machine,M2M)通信,机器类型通信(Machine Type Communication,MTC),以及车辆间(Vehicle to Vehicle,V2V)通信等,本申请实施例也可以应用于这些通信系统。
可选地,本申请实施例中的通信系统可以应用于载波聚合(Carrier Aggregation,CA)场景,也可以应用于双连接(Dual Connectivity,DC)场景,还可以应用于独立(Standalone,SA)布网场景。
本申请实施例对应用的频谱并不限定。例如,本申请实施例可以应用于授权频谱,也可以应用于免授权频谱。
本申请实施例结合网络设备和终端设备描述了各个实施例,其中:终端设备也可以称为用户设备(User Equipment,UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。终端设备可以是WLAN中的站点(STAION,ST),可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字处理(Personal Digital Assistant,PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备以及下一代通信系统,例如,NR网络中的终端设备或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)网络中的终端设备等。
作为示例而非限定,在本申请实施例中,该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备,是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称,如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上,或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备,更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能,例如:智能手表或智能眼镜等,以及只专注于某一类应用功能,需要和其它设备如智能手机配合使用,如各类进行体征监测的智能手环、智能首饰等。
网络设备可以是用于与移动设备通信的设备,网络设备可以是WLAN中的接入点(Access Point,AP),GSM或CDMA中的基站(Base Transceiver Station,BTS),也可以是WCDMA中的基站(NodeB,NB),还可以是LTE中的演进型基站(Evolutional Node B,eNB或eNodeB),或者中继站或接入点,或 者车载设备、可穿戴设备以及NR网络中的网络设备(gNB)或者未来演进的PLMN网络中的网络设备等。
在本申请实施例中,网络设备为小区提供服务,终端设备通过该小区使用的传输资源(例如,频域资源,或者说,频谱资源)与网络设备进行通信,该小区可以是网络设备(例如基站)对应的小区,小区可以属于宏基站,也可以属于小小区(Small cell)对应的基站,这里的小小区可以包括:城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等,这些小小区具有覆盖范围小、发射功率低的特点,适用于提供高速率的数据传输服务。
图1示例性地示出了一个网络设备110和两个终端设备120,可选地,该无线通信系统100可以包括多个网络设备110,并且每个网络设备110的覆盖范围内可以包括其它数量的终端设备120,本申请实施例对此不做限定。本申请实施例可以应用于一个终端设备120与一个网络设备110,也可以应用于一个终端设备120与另一个终端设备120。
可选地,该无线通信系统100还可以包括移动性管理实体(Mobility Management Entity,MME)、接入与移动性管理功能(Access and Mobility Management Function,AMF)等其他网络实体,本申请实施例对此不作限定。
应理解,本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
本申请实施例提出一种测量模式转换方法方法,图2是根据本申请实施例的一种测量模式转换方法200实现流程图,包括以下步骤:
S210:终端设备根据配置消息,在第一BFD测量模式和第二BFD测量模式之间转换;
其中,不同BFD测量模式之间的转换条件与波束失败实例指示的数量、距离最近一次接收到波束失败实例指示的时长及波束成功实例指示的数量中的至少一项相关。
在一些实施方式中,上述第一BFD测量模式为正常BFD测量模式,第二BFD测量模式为放松BFD测量模式(relaxing BFD)。在以下说明中,第一BFD测量模式与正常BFD测量模式指代同一模式,第二BFD测量模式与放松BFD测量模式指代同一模式。
可选地,第二BFD测量模式的测量周期大于第一BFD测量模式的测量周期。
可选地,第二BFD测量模式的波束失败指示周期(或称波束失败指示上报周期)大于或等于第一BFD测量模式的波束失败指示周期。
在每个测量周期内,物理层可以测量各个SSB/CSI-RS参考信号的无线链路质量。在每个波束失败指示周期,物理层可以对各个SSB/CSI-RS参考信号在过去一段评估周期内的无线链路质量进行评估,并与预定的门限进行比较,如果所有这些参考信号对应的无线链路质量都低于预定门限,则物理层向MAC层发送波束失败实例指示。在每个波束失败指示周期,物理层可能向MAC层上报波束失败实例指示,也可能不上报。
可以看出,在放松BFD测量模式下,测量周期和波束失败指示周期均可以大于正常BFD测量模式下的相应周期;因此放松BFD测量模式与正常BFD测量模式相比,终端设备的能耗更低。
在一些实施方式中,在终端设备处于第一BFD测量模式的情况下,如果距离MAC层最近一次收到来自物理层的波束失败实例指示的时长达到预设阈值和/或MAC层收到来自物理层的连续M1个波束成功实例指示,则终端设备转换为第二BFD测量模式;其中,所述M1为正整数。
对于终端设备从正常BFD测量模式转换为放松BFD测量模式的情况,本申请实施例提出以下三种实现方式:
第一种:MAC层维护第一定时器,MAC层每次接收到来自物理层的波束失败实例指示时启动/重启第一定时器,如果第一定时器超时,则通知物理层切换至放松BFD测量模式。
在一些实施方式中,终端设备接收配置消息,配置消息包括以下至少一项:
用于波束失败检测的第一资源;
第一定时器的最大时长,所述第一定时器的最大时长等于所述预设阈值。
可选地,上述配置消息为无线资源控制(RRC,Radio Resource Control)重配置消息。
可选地,上述第一资源包括SSB/CSI-RS资源。
在第一BFD测量模式的波束失败指示周期内,当MAC层收到来自物理层的波束失败实例指示时,启动/重启第一定时器;当第一定时器超时时,确定距离MAC层最近一次收到来自物理层的波束失败实例指示的时长达到预设阈值。
可选地,上述第一定时器的最大时长的单位为第一BFD测量模式的波束失败指示周期,即,第一定时器的最大时长等于多个第一BFD测量模式的波束失败指示周期。或者,上述第一定时器的最大时长的单位为毫秒(ms)。
第二种:MAC层维护第二定时器,当波束失败检测定时器(beamFailureDetectionTimer)超时时启动第二定时器,如果第二定时器超时,则通知物理层切换至放松BFD测量模式。
在一些实施方式中,终端设备接收配置消息,配置消息包括以下至少一项:
用于波束失败检测的第一资源;
波束失败检测定时器的最大时长;
第二定时器的最大时长,所述第二定时器的最大时长与所述波束失败检测定时器的最大时长之和等于所述预设阈值。
可选地,上述配置消息为RRC重配置消息。
可选地,上述第一资源包括SSB/CSI-RS资源。
在一些实施方式中,在第一BFD测量模式的波束失败指示周期内,当MAC层收到来自物理层的波束失败实例指示时,启动/重启波束失败检测定时器;
当波束失败检测定时器超时时,启动/重启第二定时器;
当第二定时器超时时,确定距离MAC层最近一次收到来自物理层的波束失败实例指示的时长达到预设阈值。
可选地,还包括:在第二定时器正在运行的情况下,当MAC层收到来自物理层的波束失败实例指示时,停止第二定时器。
在一些实施方式中,波束失败检测定时器的最大时长的单位为第一BFD测量模式/第二BFD测量模式的波束失败指示周期,即,波束失败检测定时器的最大时长等于多个第一BFD测量模式/第二BFD测量模式的波束失败指示周期。或者,上述波束失败检测定时器的最大时长的单位为毫秒(ms)。
在一些实施方式中,第二定时器的最大时长的单位为第一BFD测量模式的波束失败指示周期,即,第二定时器的最大时长等于多个第一BFD测量模式的波束失败指示周期。或者,上述第二定时器的最大时长的单位为毫秒(ms)。
第三种:MAC层收到来自物理层的连续M1个波束成功实例指示时,通知物理层切换至放松BFD测量模式。
在一些实施方式中,终端设备接收配置消息,配置消息包括以下至少一项:
用于波束失败检测的第一资源;
M1,所述M1对应所述第二BFD测量模式的进入准则的波束检测成功最大次数。
可选地,上述配置消息为RRC重配置消息。
可选地,上述第一资源包括SSB/CSI-RS资源。
在一些实施方式中,终端设备将波束检测成功次数初始化/重置为0;
在第一BFD测量模式的波束失败指示周期内,当MAC层收到来自物理层的波束成功实例指示时,将所述波束检测成功次数增加1;直至波束检测成功次数达到M1时,确定MAC层收到来自物理层的连续M1个波束成功实例指示。
可选地,在以下至少一种情况下,将波束检测成功次数初始化/重置为0:
终端设备进入所述第一BFD测量模式;
终端设备由所述第二BFD测量模式转换为所述BFD测量模式;
在第一BFD测量模式的波束失败指示周期内,MAC层收到来自物理层的波束失败实例指示;
在第一BFD测量模式的波束失败指示周期内,MAC层未收到任何指示;
收到配置消息。
在一些实施方式中,还包括:
物理层计算第一资源对应波束的无线链路质量;
在至少一个波束的无线链路质量大于或等于信道质量门限的情况下,向所述MAC层发送波束成功实例指示。上述信道质量门限可以为信噪比(SNR,Signal Noise Ratio)门限。
在一些实施方式中,信道质量门限通过以下方式得到:
获取无线资源控制RRC信令指示的和/或预定义的第一误块率(BLER,Block Error Ratio)门限;
根据该第一BLER确定信道质量门限。
在一些实施方式中,通过上述RRC信令可以以小区为粒度(per cell)配置第一BLER门限。
在一些实施方式中,上述预先设置的第一BLER门限可以为默认缺省值,例如默认缺省值为下行物理控制信道(PDCCH,Physical Downlink Control Channel)的第一BLER门限为2%。
在一些实施方式中,在终端设备处于第二BFD测量模式的情况下,如果MAC层收到来自物理层的连续N1个波束失败实例指示,则终端设备转换为第一BFD测量模式;其中,所述N1为正整数。
对于终端设备从放松BFD测量模式转换为正常BFD测量模式的情况,本申请实施例提出以下实现方式:MAC层收到来自物理层的连续N1个波束失败实例指示时,通知物理层切换至正常BFD测量模式。
在一些实施方式中,终端设备接收配置消息,所述配置消息包括以下至少一项:
用于波束失败检测的第一资源;
波束失败检测定时器的最大时长;
N1,所述N1对应所述第二BFD测量模式的离开准则的波束检测失败最大次数。
在一些实施方式中,将波束检测失败次数初始化/重置为0;
在第二BFD测量模式的波束失败指示周期内,当MAC层收到来自物理层的波束失败实例指示时,启动/重启波束失败检测定时器,并将波束检测失败次数增加1;直至波束检测失败次数达到N1时,确定MAC层收到来自物理层的连续N1个波束失败实例指示。
可选地,在以下至少一种情况下,将波束检测失败次数初始化/重置为0:
波束失败检测定时器超时;
收到配置消息。
以下结合附图,举具体的实施例详细介绍本申请。
实施例一:
在本实施例中,放松BFD测量模式的进入准则包括:MAC层维护第一定时器,MAC层每次接收到来自物理层的波束失败实例指示时启动/重启第一定时器,如果第一定时器超时,则通知物理层切换至放松BFD测量模式。
放松BFD测量模式的离开准则包括:MAC层收到来自物理层的连续N1个波束失败实例指示。
本实施例的具体实施过程包括以下内容:
第一,处于连接态的UE接收基站(gNB)的RRC重配置消息,获取无线连接监控配置(RadioLinkMonitoringConfig)和/或波束失败恢复配置(BeamFailureRecoveryConfig),其中包括:
a.失败检测资源(failureDetectionResources)配置,包含了用于波束失败检测的SSB/CSI-RS资源配置;
b.用于波束失败检测的波束失败实例最大次数(beamFailureInstanceMaxCount);
c.用于波束失败检测的波束失败检测定时器(beamFailureDetectionTimer);
d.第一定时器,所述第一定时器为用于放松BFD测量模式进入准则的定时器时长,所述第一定时器的单位为ms或者波束失败指示(上报)周期,所述第一定时器时长大于beamFailureDetectionTimer时长。
e.N1参数,所述N1为用于放松BFD测量模式离开准则的波束失败实例最大次数,并且N1小于beamFailureInstanceMaxCount。除了采用RRC配置的方式,N1也可以为预定义的值(比如缺省为1)。
第二,基于网络配置,UE缺省处于正常BFD测量模式。
第三,UE在正常BFD测量模式进行波束检测时,当MAC实体收到来自物理层的波束失败实例指示,则MAC实体启动/重启第一定时器。
第四,当MAC实体收到来自RRC层对第一定时器的重配置,则将波束失败实例指示的的计数器(BFI_COUNTER)重置为0。
第五,UE在正常BFD测量模式进行波束检测时,如果第一定时器超时,即MAC实体在过去连续的第一定时器时长内没有接收到来自物理层的波束失败实例指示,则UE进入放松BFD测量模式,并指示给物理层启用放松BFD测量模式的需求(requirement);
第六,UE在放松BFD测量模式进行波束检测时,如果BFI_COUNTER达到N1,即MAC实体收到连续N1个波束失败实例指示,则UE进入正常BFD测量模式,并指示给物理层启用正常BFD测量模式的requirement。
图3本申请实施例一的测量模式转换示意图。在图3所示的实施例中,网络配置 beamFailureDetectionTimer为1个波束失败指示(上报)周期,如1个波束失败检测周期(PBFD,period of BFD),第一定时器为8个PBFD,N1为2。在图3中,方向向上的箭头表示MAC层收到物理层发送的波束失败实例指示;第一行方向向右的箭头表示beamFailureDetectionTimer的相关操作,第二行方向向右的箭头表示第一定时器的相关操作。
如图3所示,在正常BFD测量模式下,当接收到波束失败实例指示时,启动/重启beamFailureDetectionTimer和第一定时器;当第一定时器超时时,UE进入放松BFD测量模式。
在放松BFD测量模式下,MAC层维护用于波束失败检测的计数器BFI_COUNTER,BFI_COUNTER初始值为0。如果MAC层接收到来自物理层的波束失败实例指示,则启动/重启beamFailureDetectionTimer,并将BFI_COUNTER累加1;在beamFailureDetectionTimer超时时,将BFI_COUNTER重置为0。当BFI_COUNTER达到N1时,UE进入正常BFD测量模式。
在本实施例中,连续一段时间没有接收到波束失败实例指示代表当前波束信道条件较好,可以预测近期波束变差的可能性不大,因此UE可以节能进入放松的BFD测量模式;收到连续N1个波束失败实例指示代表信道开始变差,UE切换回正常RFD测量模式可以在当前波束持续变差的情况下及早检测出波束失败进而触发波束恢复过程,避免对波束失败检测和波束失败恢复带来更多的延时。
实施例二:
在本实施例中,放松BFD测量模式的进入准则包括:MAC层维护第二定时器,当beamFailureDetectionTimer超时时启动第二定时器,如果第二定时器超时,则通知物理层切换至放松BFD测量模式。
放松BFD测量模式的离开准则包括:MAC层收到来自物理层的连续N1个波束失败实例指示。
本实施例的具体实施过程包括以下内容:
第一,处于连接态的UE接收gNB的RRC重配置消息,获取RadioLinkMonitoringConfig和/或BeamFailureRecoveryConfig配置,其中包括:
a.failureDetectionResources配置,包含了用于波束失败检测的SSB/CSI-RS资源配置;
b.用于波束失败检测的波束失败实例最大次数(beamFailureInstanceMaxCount);
c.用于波束失败检测的波束失败检测定时器(beamFailureDetectionTimer);
d.第二定时器,所述第二定时器为用于放松BFD测量进入准则的定时器时长,所述第二定时器的单位为ms或者波束失败指示(上报)周期。
e.N1参数,所述N1为用于放松BFD测量模式离开准则的波束失败实例最大次数,并且N1小于beamFailureInstanceMaxCount。除了采用RRC配置的方式,N1也可以为预定义的值(比如缺省为1)。
第二,基于网络配置,UE缺省处于正常BFD测量模式。
第三,UE在正常BFD测量模式进行波束检测时,当beamFailureDetectionTimer超时,则MAC实体启动/重启第二定时器。
第四,当MAC实体收到物理层发送的波束失败实例指示,如果第二定时器正在运行,则MAC实体停止第二定时器。
第五,当MAC实体收到来自RRC层对第二定时器的重配置,则将BFI_COUNTER重置为0。
第六,UE在正常BFD测量模式进行波束检测时,如果第二定时器超时,即MAC实体在过去连续的beamFailureDetectionTimer时长加上第二定时器时长内没有接收到来自物理层的波束失败实例指 示,则UE进入放松BFD测量模式,并指示给物理层启用放松BFD的需求(requirement)。
第七,UE在放松BFD测量模式进行波束检测时,如果BFI_COUNTER达到N1,即MAC实体收到连续N1个波束失败实例指示,则UE进入正常BFD测量模式,并指示给物理层启用正常BFD测量模式的requirement。
图4本申请实施例二的测量模式转换示意图。在图4所示的实施例中,网络配置beamFailureDetectionTimer为1个波束失败指示(上报)周期,如1个PBFD,第二定时器为7个PBFD,N1为2。在图4中,方向向上的箭头表示MAC层收到物理层发送的波束失败实例指示;第一行方向向右的箭头表示beamFailureDetectionTimer的相关操作,第二行方向向右的箭头表示第二定时器的相关操作。
如图4所示,在正常BFD测量模式下,当接收到波束失败实例指示时,启动/重启beamFailureDetectionTimer;在beamFailureDetectionTimer超时时,重启/启动第二定时器。在第二定时器运行过程中,如果接收到波束失败实例指示,则停止第二定时器。当第二定时器超时时,UE进入放松BFD测量模式。
在放松BFD测量模式下,MAC层维护用于波束失败检测的计数器BFI_COUNTER,BFI_COUNTER初始值为0。如果MAC层接收到来自物理层的波束失败实例指示,则启动/重启beamFailureDetectionTimer,并将BFI_COUNTER累加1;在beamFailureDetectionTimer超时时,将BFI_COUNTER重置为0。当BFI_COUNTER达到N1时,UE进入正常BFD测量模式。
在本实施例中,与实施例一相同的是,连续一段时间没有接收到波束失败实例指示代表当前波束信道条件较好,因此UE可以节能进入放松的BFD测量模式;收到连续N1个波束失败实例指示代表信道开始变差,UE切换回正常RFD测量模式可以避免对波束失败检测和波束失败恢复带来更多的延时。与实施例一不同的是,实施例二中用于放松BFD测量模式进入准则的定时器不是每次收到来自物理层的波束失败指示时启动,而是在beamFailureDetectionTimer超时后启动,这种方式可以避免频繁地启动/重启用于放松BFD测量模式进入准则的定时器,从而使定时器的操作更简单,并且UE实现复杂度更低。
实施例三:
在本实施例中,放松BFD测量模式的进入准则包括:MAC层收到来自物理层的连续M1个波束成功实例指示。
放松BFD测量模式的离开准则包括:MAC层收到来自物理层的连续N1个波束失败实例指示。
本实施例的具体实施过程包括以下内容:
第一,处于连接态的UE接收gNB的RRC重配置消息,获取RadioLinkMonitoringConfig和/或BeamFailureRecoveryConfig配置,其中包括:
a.failureDetectionResources配置,包含了用于波束失败检测的SSB/CSI-RS资源配置;
b.用于波束失败检测的波束失败实例最大次数(beamFailureInstanceMaxCount);
c.用于波束失败检测的波束失败检测定时器(beamFailureDetectionTimer);
d.M1参数,所述M1为用于放松BFD测量模式进入准则的波束成功实例最大次数;
e.N1参数,所述N1为用于放松BFD测量模式离开准则的波束失败实例最大次数,并且N1小于beamFailureInstanceMaxCount。除了采用RRC配置的方式,N1也可以为预定义的值(比如缺省为1)。
第二,定义一个用于判断波束成功的SNR门限,具体可以采用以下方式:
a.SNR门限是根据对应的BLER门限来确定的。
b.SNR门限对应的BLER门限是通过RRC信令以小区为粒度(per cell)配置的。或者预定义一个BLER门限的缺省默认值,比如缺省默认值为PDCCH的BLER门限为2%。
第三,UE的物理层在每个波束失败指示(上报)周期评估各个配置的用于波束失败检测的SSB/CSI-RS资源对应波束的无线链路质量,如果其中有任意一个波束的无线信道质量高于用于判断波束成功的SNR门限,则物理层向MAC层发送波束成功实例指示。
第四,UE维护M1_counter,方法如下:
a.在满足以下任意一个条件时,UE初始化/重置M1_counter:
-UE由放松BFD测量模式切换至正常测量BFD模式,或UE进入正常BFD测量模式;
-MAC层在当前的波束失败指示(上报)周期没有收到来自物理层的波束成功实例指示,至少有以下两种情况:
情况1:MAC层没有接收到来自物理层的任何指示。
情况2:MAC层接收到来自物理层的波束失败实例指示。
-UE接收到针对M1参数,或者用于波束失败检测的SSB/CSI-RS资源的重配置。
b.UE处于正常BFD测量模式,且MAC层在当前的波束失败指示(上报)周期收到1个来自物理层的波束成功实例指示时,更新M1_counter。更新M1_counter的方式为将M1_counter自加1。
第五,基于网络配置,UE缺省处于正常BFD测量模式。
第六,UE在正常BFD测量模式进行波束检测时,如果M1_counter达到M1,即MAC实体收到连续M1个波束成功实例指示,则UE进入放松BFD测量模式,并指示给物理层启用放松BFD测量模式的requirement;
第七,UE在放松BFD测量模式进行波束检测时,如果BFI_COUNTER达到N1,即MAC实体收到连续N1个波束失败实例指示,则UE进入正常BFD测量模式,并指示给物理层启用正常BFD测量模式的requirement。
图5本申请实施例三的测量模式转换示意图。在图5所示的实施例中,网络配置M1为8,N1为2。在图5中,方向向上的实线箭头表示MAC层收到物理层发送的波束失败实例指示,方向向上的虚线箭头表示MAC层收到物理层发送的波束成功实例指示。
如图5所示,在正常BFD测量模式下,MAC层维护用于波束成功检测的计数器M1_counter,M1_counter初始值为0。如果MAC层接收到来自物理层的波束成功实例指示,则启动/重启beamFailureDetectionTimer,并将M1_counter累加1;在beamFailureDetectionTimer超时时,将M1_counter重置为0。当M1_counter达到M1时,UE进入放松BFD测量模式。
在放松BFD测量模式下,MAC层维护用于波束失败检测的计数器BFI_COUNTER,BFI_COUNTER初始值为0。如果MAC层接收到来自物理层的波束失败实例指示,则启动/重启beamFailureDetectionTimer,并将BFI_COUNTER累加1;在beamFailureDetectionTimer超时时,将BFI_COUNTER重置为0。当BFI_COUNTER达到N1时,UE进入正常BFD测量模式。
在本实施例中,连续M1个波束成功实例指示代表信道足够好,可以预测近期链路变差的可能性不大,因此UE可以节能进入放松BFD测量模式;连续N1个波束失败实例指示代表信道开始变差,UE 切换回正常BFD测量模式可以避免对波束失败检测和波束失败恢复带来更多的延时。本实施例需要物理层执行波束成功的判决,另外可以增加一个物理层到MAC层的层间接口,或者在现有的接口的基础上增加波束成功的指示信息。
本申请实施例还提出一种测量模式转换方法,该方法可以应用于网络设备。图6是根据本申请实施例的一种测量模式转换方法600实现流程图,包括以下步骤:
S610:发送配置消息,所述配置消息用于终端设备进行第一BFD测量模式和第二BFD测量模式之间的转换。
可选地,上述第一BFD测量模式为正常BFD测量模式,第二BFD测量模式为放松BFD测量模式。
在一些实施方式中,配置消息包括以下至少一项:
用于波束失败检测的第一资源;第一定时器的最大时长,所述第一定时器的最大时长等于所述第二BFD测量模式的进入准则的预设阈值。
在一些实施方式中,配置消息包括以下至少一项:
用于波束失败检测的第一资源;
波束失败检测定时器的最大时长;
第二定时器的最大时长,所述第二定时器的最大时长与所述波束失败检测定时器的最大时长之和等于所述第二BFD测量模式的进入准则的预设阈值。
在一些实施方式中,配置消息包括以下至少一项:
用于波束失败检测的第一资源;
M1,所述M1对应所述第二BFD测量模式的进入准则的波束检测成功最大次数。
可选地,上述配置消息还包括:第一BLER门限,所述第一BLER门限用于确定检测波束成功的信道质量门限。
在一些实施方式中,上述配置消息包括以下至少一项:
用于波束失败检测的第一资源;
波束失败检测定时器的最大时长;
N1,所述N1对应所述第二BFD测量模式的离开准则的波束检测失败最大次数。
本申请实施例还提出一种终端设备,图7是根据本申请实施例的终端设备700结构示意图,包括:
MAC层模块710,用于根据配置消息,将终端设备在第一BFD测量模式和第二BFD测量模式之间转换;
其中,不同BFD测量模式之间的转换条件与波束失败实例指示的数量、距离最近一次接收到波束失败实例指示的时长及波束成功实例指示的数量中的至少一项相关。
在一些实施方式中,第一BFD测量模式为正常BFD测量模式,第二BFD测量模式为放松BFD测量模式。可选地,上述第二BFD测量模式的测量周期大于第一BFD测量模式的测量周期。可选地,上述第二BFD测量模式的波束失败指示周期大于或等于第一BFD测量模式的波束失败指示周期。
在一些实施方式中,在终端设备处于第一BFD测量模式的情况下,如果距离MAC层模块最近一次收到来自物理层模块的波束失败实例指示的时长达到预设阈值和/或MAC层模块收到来自物理层模块的连续M1个波束成功实例指示,则将所述终端设备转换为第二BFD测量模式;其中,所述M1为 正整数。
在一些实施方式中,MAC层模块710还用于,接收配置消息,所述配置消息包括以下至少一项:
用于波束失败检测的第一资源;
第一定时器的最大时长,所述第一定时器的最大时长等于所述预设阈值。
可选地,上述MAC层模块710用于,
在所述第一BFD测量模式的波束失败指示周期内,当所述MAC层模块收到来自物理层模块的波束失败实例指示时,启动/重启第一定时器;当所述第一定时器超时时,确定距离MAC层模块最近一次收到来自物理层模块的波束失败实例指示的时长达到预设阈值。
在一些实施方式中,第一定时器的最大时长的单位为所述第一BFD测量模式的波束失败指示周期。
在一些实施方式中,MAC层模块710还用于,接收配置消息,所述配置消息包括以下至少一项:
用于波束失败检测的第一资源;
波束失败检测定时器的最大时长;
第二定时器的最大时长,所述第二定时器的最大时长与所述波束失败检测定时器的最大时长之和等于所述预设阈值。
可选地,上述MAC层模块710用于,
在所述第一BFD测量模式的波束失败指示周期内,当所述MAC层模块收到来自物理层模块的波束失败实例指示时,启动/重启波束失败检测定时器;
当所述波束失败检测定时器超时时,启动/重启所述第二定时器;
当所述第二定时器超时时,确定距离MAC层模块最近一次收到来自物理层模块的波束失败实例指示的时长达到预设阈值。
可选地,上述MAC层模块710还用于,在所述第二定时器正在运行的情况下,当所述MAC层模块收到来自物理层模块的波束失败实例指示时,停止所述第二定时器。
在一些实施方式中,波束失败检测定时器的最大时长的单位为第一BFD测量模式/第二BFD测量模式的波束失败指示周期。
在一些实施方式中,第二定时器的最大时长的单位为所述第一BFD测量模式的波束失败指示周期。
在一些实施方式中,MAC层模块710还用于,接收配置消息,所述配置消息包括以下至少一项:
用于波束失败检测的第一资源;
所述M1,所述M1对应所述第二BFD测量模式的进入准则的波束检测成功最大次数。
可选地,上述MAC层模块710用于,将波束检测成功次数初始化/重置为0;
在所述第一BFD测量模式的波束失败指示周期内,当所述MAC层模块收到来自物理层模块的波束成功实例指示时,将所述波束检测成功次数增加1;直至所述波束检测成功次数达到M1时,确定MAC层模块收到来自物理层模块的连续M1个波束成功实例指示。
可选地,MAC层模块710在以下至少一种情况下,将所述波束检测成功次数初始化/重置为0:
所述终端设备进入所述第一BFD测量模式;
所述终端设备由所述第二BFD测量模式转换为所述第一BFD测量模式;
在所述第一BFD测量模式的波束失败指示周期内,所述MAC层模块收到来自物理层模块的波束失败实例指示;
在所述第一BFD测量模式的波束失败指示周期内,所述MAC层模块未收到任何指示;
收到所述配置消息。
如图8所示,上述终端设备还包括:
物理层模块820,用于计算所述第一资源对应波束的无线链路质量;在至少一个波束的无线链路质量大于或等于信道质量门限的情况下,向所述MAC层模块710发送波束成功实例指示。
在一些实施方式中,信道质量门限通过以下方式得到:
获取RRC信令指示的和/或预定义的BLER门限;
根据第一BLER确定信道质量门限。
在一些实施方式中,在终端设备处于第二BFD测量模式的情况下,如果MAC层模块收到来自物理层模块的连续N1个波束失败实例指示,则将所述终端设备转换为第一BFD测量模式;其中,所述N1为正整数。
可选地,上述MAC层模块710还用于,接收配置消息,所述配置消息包括以下至少一项:
用于波束失败检测的第一资源;
波束失败检测定时器的最大时长;
所述N1,所述N1对应所述第二BFD测量模式的离开准则的波束检测失败最大次数。
可选地,MAC层模块710用于,
将波束检测失败次数初始化/重置为0;
在所述第二BFD测量模式的波束失败指示周期内,当所述MAC层模块收到来自物理层模块的波束失败实例指示时,启动/重启波束失败检测定时器,并将所述波束检测失败次数增加1;直至所述波束检测失败次数达到N1时,确定MAC层模块收到来自物理层模块的连续N1个波束失败实例指示。
在一些实施方式中,MAC层模块710用于,在以下至少一种情况下,将所述波束检测失败次数初始化/重置为0:
所述波束失败检测定时器超时;
收到所述配置消息。
在一些实施方式中,上述配置消息包括:RRC重配置消息。
应理解,根据本申请实施例的终端设备中的模块的上述及其他操作和/或功能分别为了实现图2的方法200中的终端设备的相应流程,为了简洁,在此不再赘述。
本申请实施例还提出一种网络设备,图9是根据本申请实施例的网络设备900结构示意图,包括:
发送模块910,用于发送配置消息,所述配置消息用于终端设备进行第一BFD测量模式和第二BFD测量模式之间的转换。
在一些实施方式中,第一BFD测量模式为正常BFD测量模式,第二BFD测量模式为放松BFD测量模式。
在一些实施方式中,配置消息包括以下至少一项:
用于波束失败检测的第一资源;
第一定时器的最大时长,所述第一定时器的最大时长等于所述第二BFD测量模式的进入准则的预设阈值。
在一些实施方式中,配置消息包括以下至少一项:
用于波束失败检测的第一资源;
波束失败检测定时器的最大时长;
第二定时器的最大时长,所述第二定时器的最大时长与所述波束失败检测定时器的最大时长之和等于所述第二BFD测量模式的进入准则的预设阈值。
在一些实施方式中,配置消息包括以下至少一项:
用于波束失败检测的第一资源;
M1,所述M1对应所述第二BFD测量模式的进入准则的波束检测成功最大次数。
可选地,上述配置消息还包括:第一BLER门限,所述第一BLER门限用于确定检测波束成功的信道质量门限。
在一些实施方式中,所述配置消息包括以下至少一项:用于波束失败检测的第一资源;波束失败检测定时器的最大时长;N1,所述N1对应所述第二BFD测量模式的离开准则的波束检测失败最大次数。
应理解,根据本申请实施例的网络设备中的模块的上述及其他操作和/或功能分别为了实现6的方法600的网络设备的相应流程,为了简洁,在此不再赘述。
本申请实施例还提出一种通信系统,包括上述终端设备和网络设备。
图10是根据本申请实施例的通信设备1000示意性结构图。图10所示的通信设备1000包括处理器1010,处理器1010可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图10所示,通信设备1000还可以包括存储器1020。其中,处理器1010可以从存储器1020中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器1020可以是独立于处理器1010的一个单独的器件,也可以集成在处理器1010中。
可选地,如图10所示,通信设备1000还可以包括收发器1030,处理器1010可以控制该收发器1030与其他设备进行通信,具体地,可以向其他设备发送信息或数据,或接收其他设备发送的信息或数据。
其中,收发器1030可以包括发射机和接收机。收发器1030还可以进一步包括天线,天线的数量可以为一个或多个。
可选地,该通信设备1000可为本申请实施例的终端设备,并且该通信设备1000可以实现本申请实施例的各个方法中由终端设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该通信设备1000可为本申请实施例的网络设备,并且该通信设备1000可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
图11是根据本申请实施例的芯片1100的示意性结构图。图11所示的芯片1100包括处理器1110,处理器1110可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图11所示,芯片1100还可以包括存储器1120。其中,处理器1110可以从存储器1120中调用并运行计算机程序,以实现本申请实施例中的方法。其中,存储器1120可以是独立于处理器1110的一个单独的器件,也可以集成在处理器1110中。
可选地,该芯片1100还可以包括输入接口1130。其中,处理器1110可以控制该输入接口1130与其他设备或芯片进行通信,具体地,可以获取其他设备或芯片发送的信息或数据。
可选地,该芯片1100还可以包括输出接口1140。其中,处理器1110可以控制该输出接口1140与其他设备或芯片进行通信,具体地,可以向其他设备或芯片输出信息或数据。
可选地,该芯片可应用于本申请实施例中的终端设备,并且该芯片可以实现本申请实施例的各个方 法中由终端设备实现的相应流程,为了简洁,在此不再赘述。可选地,该芯片可应用于本申请实施例中的网络设备,并且该芯片可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
上述提及的处理器可以是通用处理器、数字信号处理器(digital signal processor,DSP)、现成可编程门阵列(field programmable gate array,FPGA)、专用集成电路(application specific integrated circuit,ASIC)或者其他可编程逻辑器件、晶体管逻辑器件、分立硬件组件等。其中,上述提到的通用处理器可以是微处理器或者也可以是任何常规的处理器等。
上述提及的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(read-only memory,ROM)、可编程只读存储器(programmable ROM,PROM)、可擦除可编程只读存储器(erasable PROM,EPROM)、电可擦除可编程只读存储器(electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory,RAM)。
应理解,上述存储器为示例性但不是限制性说明,例如,本申请实施例中的存储器还可以是静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synch link DRAM,SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)等等。也就是说,本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行该计算机程序指令时,全部或部分地产生按照本申请实施例所述的流程或功能。该计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。该计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,该计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(Digital Subscriber Line,DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。该计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。该可用介质可以是磁性介质,(例如,软盘、硬盘、磁带)、光介质(例如,DVD)、或者半导体介质(例如固态硬盘(Solid State Disk,SSD))等。
应理解,在本申请的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本申请实施例的实施过程构成任何限定。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
以上所述仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以该权利要求的保护范围为准。
Claims (71)
- 一种测量模式转换方法,应用于终端设备,包括:终端设备根据配置消息,在第一波束失败检测BFD测量模式和第二BFD测量模式之间转换;其中,不同BFD测量模式之间的转换条件与波束失败实例指示的数量、距离最近一次接收到波束失败实例指示的时长及波束成功实例指示的数量中的至少一项相关。
- 根据权利要求1所述的方法,其中,所述第一BFD测量模式为正常BFD测量模式,所述第二BFD测量模式为放松BFD测量模式。
- 根据权利要求1或2所述的方法,其中,所述第二BFD测量模式的测量周期大于所述第一BFD测量模式的测量周期。
- 根据权利要求1至3任一所述的方法,其中,所述第二BFD测量模式的波束失败指示周期大于或等于所述第一BFD测量模式的波束失败指示周期。
- 根据权利要求1至4任一所述的方法,其中,在终端设备处于第一BFD测量模式的情况下,如果距离媒质接入控制MAC层最近一次收到来自物理层的波束失败实例指示的时长达到预设阈值和/或MAC层收到来自物理层的连续M1个波束成功实例指示,则所述终端设备转换为第二BFD测量模式;其中,所述M1为正整数。
- 根据权利要求5所述的方法,还包括:接收配置消息,所述配置消息包括以下至少一项:用于波束失败检测的第一资源;第一定时器的最大时长,所述第一定时器的最大时长等于所述预设阈值。
- 根据权利要求6所述的方法,其中,在所述第一BFD测量模式的波束失败指示周期内,当MAC层收到来自物理层的波束失败实例指示时,启动/重启第一定时器;当所述第一定时器超时时,确定距离MAC层最近一次收到来自物理层的波束失败实例指示的时长达到预设阈值。
- 根据权利要求6或7所述的方法,其中,所述第一定时器的最大时长的单位为所述第一BFD测量模式的波束失败指示周期。
- 根据权利要求5所述的方法,还包括:接收配置消息,所述配置消息包括以下至少一项:用于波束失败检测的第一资源;波束失败检测定时器的最大时长;第二定时器的最大时长,所述第二定时器的最大时长与所述波束失败检测定时器的最大时长之和等于所述预设阈值。
- 根据权利要求9所述的方法,其中,在所述第一BFD测量模式的波束失败指示周期内,当MAC层收到来自物理层的波束失败实例指示时,启动/重启波束失败检测定时器;当所述波束失败检测定时器超时时,启动/重启所述第二定时器;当所述第二定时器超时时,确定距离MAC层最近一次收到来自物理层的波束失败实例指示的时长达到预设阈值。
- 根据权利要求10所述的方法,还包括:在所述第二定时器正在运行的情况下,当MAC层收到 来自物理层的波束失败实例指示时,停止所述第二定时器。
- 根据权利要求9至11任一所述的方法,其中,所述波束失败检测定时器的最大时长的单位为所述第一BFD测量模式/第二BFD测量模式的波束失败指示周期。
- 根据权利要求9至11任一所述的方法,其中,所述第二定时器的最大时长的单位为所述第一BFD测量模式的波束失败指示周期。
- 根据权利要求5所述的方法,还包括:接收配置消息,所述配置消息包括以下至少一项:用于波束失败检测的第一资源;所述M1,所述M1对应所述第二BFD测量模式的进入准则的波束检测成功最大次数。
- 根据权利要求14所述的方法,其中,将波束检测成功次数初始化/重置为0;在所述第一BFD测量模式的波束失败指示周期内,当MAC层收到来自物理层的波束成功实例指示时,将所述波束检测成功次数增加1;直至所述波束检测成功次数达到M1时,确定MAC层收到来自物理层的连续M1个波束成功实例指示。
- 根据权利要求15所述的方法,在以下至少一种情况下,将所述波束检测成功次数初始化/重置为0:所述终端设备进入所述第一BFD测量模式;所述终端设备由所述第二BFD测量模式转换为所述第一BFD测量模式;在所述第一BFD测量模式的波束失败指示周期内,MAC层收到来自物理层的波束失败实例指示;在所述第一BFD测量模式的波束失败指示周期内,MAC层未收到任何指示;收到所述配置消息。
- 根据权利要求15或16所述的方法,还包括:物理层计算所述第一资源对应波束的无线链路质量;在至少一个波束的无线链路质量大于或等于信道质量门限的情况下,向所述MAC层发送波束成功实例指示。
- 根据权利要求17所述的方法,所述信道质量门限通过以下方式得到:获取无线资源控制RRC信令指示的和/或预定义的第一误块率BLER门限;根据所述第一BLER门限确定所述信道质量门限。
- 根据权利要求1至4任一所述的方法,其中,在终端设备处于第二BFD测量模式的情况下,如果MAC层收到来自物理层的连续N1个波束失败实例指示,则所述终端设备转换为第一BFD测量模式;其中,所述N1为正整数。
- 根据权利要求19所述的方法,其中,还包括:接收配置消息,所述配置消息包括以下至少一项:用于波束失败检测的第一资源;波束失败检测定时器的最大时长;所述N1,所述N1对应所述第二BFD测量模式的离开准则的波束检测失败最大次数。
- 根据权利要求20所述的方法,其中,将波束检测失败次数初始化/重置为0;在所述第二BFD测量模式的波束失败指示周期内,当MAC层收到来自物理层的波束失败实例指 示时,启动/重启波束失败检测定时器,并将所述波束检测失败次数增加1;直至所述波束检测失败次数达到N1时,确定MAC层收到来自物理层的连续N1个波束失败实例指示。
- 根据权利要求21所述的方法,在以下至少一种情况下,将所述波束检测失败次数初始化/重置为0:所述波束失败检测定时器超时;收到所述配置消息。
- 根据权利要求6至18及20至22任一所述的方法,其中,所述配置消息包括:RRC重配置消息。
- 一种测量模式转换方法,应用于网络设备,包括:发送配置消息,所述配置消息用于终端设备进行第一BFD测量模式和第二BFD测量模式之间的转换。
- 根据权利要求24所述的方法,其中,所述第一BFD测量模式为正常BFD测量模式,所述第二BFD测量模式为放松BFD测量模式。
- 根据权利要求24或25所述的方法,其中,所述配置消息包括以下至少一项:用于波束失败检测的第一资源;第一定时器的最大时长,所述第一定时器的最大时长等于所述第二BFD测量模式的进入准则的预设阈值。
- 根据权利要求24或25所述的方法,其中,所述配置消息包括以下至少一项:用于波束失败检测的第一资源;波束失败检测定时器的最大时长;第二定时器的最大时长,所述第二定时器的最大时长与所述波束失败检测定时器的最大时长之和等于所述第二BFD测量模式的进入准则的预设阈值。
- 根据权利要求24或25所述的方法,其中,所述配置消息包括以下至少一项:用于波束失败检测的第一资源;M1,所述M1对应所述第二BFD测量模式的进入准则的波束检测成功最大次数。
- 根据权利要求28所述的方法,其中,所述配置消息还包括:第一BLER门限,所述第一BLER门限用于确定检测波束成功的信道质量门限。
- 根据权利要求24或25所述的方法,其中,所述配置消息包括以下至少一项:用于波束失败检测的第一资源;波束失败检测定时器的最大时长;N1,所述N1对应所述第二BFD测量模式的离开准则的波束检测失败最大次数。
- 一种终端设备,包括:MAC层模块,用于根据配置消息,将终端设备在第一BFD测量模式和第二BFD测量模式之间转换;其中,不同BFD测量模式之间的转换条件与波束失败实例指示的数量、距离最近一次接收到波束失败实例指示的时长及波束成功实例指示的数量中的至少一项相关。
- 根据权利要求31所述的终端设备,其中,所述第一BFD测量模式为正常BFD测量模式,所述第二BFD测量模式为放松BFD测量模式。
- 根据权利要求31或32所述的终端设备,其中,所述第二BFD测量模式的测量周期大于所述第一BFD测量模式的测量周期。
- 根据权利要求31至33任一所述的终端设备,其中,所述第二BFD测量模式的波束失败指示周期大于或等于所述第一BFD测量模式的波束失败指示周期。
- 根据权利要求31至34任一所述的终端设备,其中,在终端设备处于第一BFD测量模式的情况下,如果距离MAC层模块最近一次收到来自物理层模块的波束失败实例指示的时长达到预设阈值和/或MAC层模块收到来自物理层模块的连续M1个波束成功实例指示,则将所述终端设备转换为第二BFD测量模式;其中,所述M1为正整数。
- 根据权利要求35所述的终端设备,所述MAC层模块还用于,接收配置消息,所述配置消息包括以下至少一项:用于波束失败检测的第一资源;第一定时器的最大时长,所述第一定时器的最大时长等于所述预设阈值。
- 根据权利要求36所述的终端设备,其中,所述MAC层模块用于,在所述第一BFD测量模式的波束失败指示周期内,当所述MAC层模块收到来自物理层模块的波束失败实例指示时,启动/重启第一定时器;当所述第一定时器超时时,确定距离MAC层模块最近一次收到来自物理层模块的波束失败实例指示的时长达到预设阈值。
- 根据权利要求36或37所述的终端设备,其中,所述第一定时器的最大时长的单位为所述第一BFD测量模式的波束失败指示周期。
- 根据权利要求38所述的终端设备,所述MAC层模块还用于,接收配置消息,所述配置消息包括以下至少一项:用于波束失败检测的第一资源;波束失败检测定时器的最大时长;第二定时器的最大时长,所述第二定时器的最大时长与所述波束失败检测定时器的最大时长之和等于所述预设阈值。
- 根据权利要求39所述的终端设备,其中,所述MAC层模块用于,在所述第一BFD测量模式的波束失败指示周期内,当所述MAC层模块收到来自物理层模块的波束失败实例指示时,启动/重启波束失败检测定时器;当所述波束失败检测定时器超时时,启动/重启所述第二定时器;当所述第二定时器超时时,确定距离MAC层模块最近一次收到来自物理层模块的波束失败实例指示的时长达到预设阈值。
- 根据权利要求40所述的终端设备,所述MAC层模块还用于,在所述第二定时器正在运行的情况下,当所述MAC层模块收到来自物理层模块的波束失败实例指示时,停止所述第二定时器。
- 根据权利要求39至41任一所述的终端设备,其中,所述波束失败检测定时器的最大时长的单位为所述第一BFD测量模式/第二BFD测量模式的波束失败指示周期。
- 根据权利要求39至41任一所述的终端设备,其中,所述第二定时器的最大时长的单位为所述第一BFD测量模式的波束失败指示周期。
- 根据权利要求35所述的终端设备,所述MAC层模块还用于,接收配置消息,所述配置消息包 括以下至少一项:用于波束失败检测的第一资源;所述M1,所述M1对应所述第二BFD测量模式的进入准则的波束检测成功最大次数。
- 根据权利要求44所述的终端设备,其中,所述MAC层模块用于,将波束检测成功次数初始化/重置为0;在所述第一BFD测量模式的波束失败指示周期内,当所述MAC层模块收到来自物理层模块的波束成功实例指示时,将所述波束检测成功次数增加1;直至所述波束检测成功次数达到M1时,确定MAC层模块收到来自物理层模块的连续M1个波束成功实例指示。
- 根据权利要求45所述的终端设备,所述MAC层模块在以下至少一种情况下,将所述波束检测成功次数初始化/重置为0:所述终端设备进入所述第一BFD测量模式;所述终端设备由所述第二BFD测量模式转换为所述第一BFD测量模式;在所述第一BFD测量模式的波束失败指示周期内,所述MAC层模块收到来自物理层模块的波束失败实例指示;在所述第一BFD测量模式的波束失败指示周期内,所述MAC层模块未收到任何指示;收到所述配置消息。
- 根据权利要求45或46所述的终端设备,还包括:物理层模块,用于计算所述第一资源对应波束的无线链路质量;在至少一个波束的无线链路质量大于或等于信道质量门限的情况下,向所述MAC层模块发送波束成功实例指示。
- 根据权利要求47所述的终端设备,所述信道质量门限通过以下方式得到:获取RRC信令指示的和/或预定义的第一BLER门限;根据所述第一BLER门限确定所述信道质量门限。
- 根据权利要求31至34任一所述的终端设备,其中,在终端设备处于第二BFD测量模式的情况下,如果MAC层模块收到来自物理层模块的连续N1个波束失败实例指示,则将所述终端设备转换为第一BFD测量模式;其中,所述N1为正整数。
- 根据权利要求49所述的终端设备,所述MAC层模块还用于,接收配置消息,所述配置消息包括以下至少一项:用于波束失败检测的第一资源;波束失败检测定时器的最大时长;所述N1,所述N1对应所述第二BFD测量模式的离开准则的波束检测失败最大次数。
- 根据权利要求50所述的终端设备,其中,所述MAC层模块用于,将波束检测失败次数初始化/重置为0;在所述第二BFD测量模式的波束失败指示周期内,当所述MAC层模块收到来自物理层模块的波束失败实例指示时,启动/重启波束失败检测定时器,并将所述波束检测失败次数增加1;直至所述波束检测失败次数达到N1时,确定MAC层模块收到来自物理层模块的连续N1个波束失败实例指示。
- 根据权利要求51所述的终端设备,所述MAC层模块用于,在以下至少一种情况下,将所述波束检测失败次数初始化/重置为0:所述波束失败检测定时器超时;收到所述配置消息。
- 根据权利要求36至48及50至52任一所述的终端设备,其中,所述配置消息包括:RRC重配置消息。
- 一种网络设备,包括:发送模块,用于发送配置消息,所述配置消息用于终端设备进行第一BFD测量模式和第二BFD测量模式之间的转换。
- 根据权利要求54所述的网络设备,其中,所述第一BFD测量模式为正常BFD测量模式,所述第二BFD测量模式为放松BFD测量模式。
- 根据权利要求54或55所述的网络设备,其中,所述配置消息包括以下至少一项:用于波束失败检测的第一资源;第一定时器的最大时长,所述第一定时器的最大时长等于所述第二BFD测量模式的进入准则的预设阈值。
- 根据权利要求54或55所述的网络设备,其中,所述配置消息包括以下至少一项:用于波束失败检测的第一资源;波束失败检测定时器的最大时长;第二定时器的最大时长,所述第二定时器的最大时长与所述波束失败检测定时器的最大时长之和等于所述第二BFD测量模式的进入准则的预设阈值。
- 根据权利要求54或55所述的网络设备,其中,所述配置消息包括以下至少一项:用于波束失败检测的第一资源;M1,所述M1对应所述第二BFD测量模式的进入准则的波束检测成功最大次数。
- 根据权利要求58所述的网络设备,其中,所述配置消息还包括:第一BLER门限,所述第一BLER门限用于确定检测波束成功的信道质量门限。
- 根据权利要求54或55所述的网络设备,其中,所述配置消息包括以下至少一项:用于波束失败检测的第一资源;波束失败检测定时器的最大时长;N1,所述N1对应所述第二BFD测量模式的离开准则的波束检测失败最大次数。
- 一种终端设备,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求1至23中任一项所述的方法。
- 一种网络设备,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求24至30中任一项所述的方法。
- 一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求1至23中任一项所述的方法。
- 一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求24至30中任一项所述的方法。
- 一种计算机可读存储介质,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求1至23中任一项所述的方法。
- 一种计算机可读存储介质,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求24至30中任一项所述的方法。
- 一种计算机程序产品,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求1至23中任一项所述的方法。
- 一种计算机程序产品,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求24至30中任一项所述的方法。
- 一种计算机程序,所述计算机程序使得计算机执行如权利要求1至23中任一项所述的方法。
- 一种计算机程序,所述计算机程序使得计算机执行如权利要求24至30中任一项所述的方法。
- 一种通信系统,包括:终端设备,用于执行如权利要求1至23中任一项所述的方法;网络设备,用于执行如权利要求24至30中任一项所述的方法。
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