A communication method and related device

Abstract

The application provides a communication method and related equipment, and relates to the technical field of communication. When a terminal device detects that a beam management condition is met, the terminal device automatically sends notification information about the beam management condition to a network device to trigger a beam management process, thereby avoiding the method in the prior art in which the terminal device can only perform beam management after feeding back a beam measurement result according to the requirements of the network device, and thereby improving the efficiency of identifying an optimal beam.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a communication method and related equipment. Background Technology

[0002] With the development of mobile communication technology, especially the continuous development of next-generation mobile communication technologies such as the fifth-generation mobile networks (5G), the functions of communication systems are constantly being enhanced. Specifically, 5G communication systems can provide enhanced mobile broadband (eMBB), with faster connections, higher throughput, and greater capacity, as well as ultra-reliable low-latency communications (uRLLC). This allows the network to be applied in mission-critical scenarios that require uninterrupted and stable data links, such as extended reality (XR) scenarios or cloud gaming scenarios, meeting the ultra-high reliability and low latency requirements of wireless communication networks in these scenarios.

[0003] A communication system may include network equipment such as base stations. Each base station can support communication with multiple terminal devices, where the terminal devices may be user equipment (UE). In many mission scenarios, to enhance the communication quality between the terminal devices and network equipment, the network equipment sends pilot signals for beam management to the terminal devices. After receiving the pilot signal, the terminal device measures the quality and characteristics of the multiple transmitted or received beams to identify the optimal beam and feeds the measurement results back to the network equipment. The network equipment can then instruct the optimal beam to be used by the terminal devices, enabling communication between the terminal devices and network equipment through that optimal beam.

[0004] However, the process of the terminal device receiving the measurement results from the pilot signal based on the configuration of the network device is delayed, resulting in low efficiency in identifying the optimal beam. Summary of the Invention

[0005] The purpose of this application is to provide a communication method and related equipment that can improve the efficiency of identifying the optimal beam.

[0006] Firstly, this application provides a communication method applied to mobile phones and computer terminal devices. The method includes: if the terminal device is detected to meet beam management conditions, sending a notification message to a network device, wherein the beam management conditions are related to the link quality of the terminal device's reference signal and / or the link quality associated with the terminal device's channel; and receiving feedback information from the network device regarding the notification message. Thus, when the terminal device detects that the beam management conditions are met, it automatically sends a notification message confirming that the beam management conditions are met to the network device, triggering the beam management process. This avoids the method in related technologies where the terminal device needs to provide beam measurement results according to the network device's requirements before beam management can be performed, thereby improving the efficiency of identifying the optimal beam.

[0007] In some specific implementations, if the terminal device is detected to meet the beam management conditions, a notification message is sent to the network device. This notification message includes information on one or more of the following: the link quality value of the terminal device's reference signal is greater than or equal to a first threshold; the link quality value associated with the terminal device's channel is less than a second threshold; the link quality value of the terminal device's reference signal is greater than or equal to the first threshold and the link quality value associated with the terminal device's channel is less than the second threshold; the link quality value of the terminal device's reference signal is better than the link quality value associated with the terminal device's channel; and the quality change value of the link quality value associated with the terminal device's channel within a first time period is greater than a change threshold. Therefore, when the terminal device detects that the beam management conditions are met, it automatically sends a notification message to the network device to trigger the beam management process. This avoids the method in related technologies where the terminal device needs to provide beam measurement results according to the network device's requirements before beam management can be performed, thereby improving the efficiency of identifying the optimal beam.

[0008] In some specific implementations, the method for obtaining the link quality value of the reference signal includes: determining a first reference signal based on a reference signal used for candidate beam detection, and / or based on a target reference signal configured in the network device; and obtaining the link quality value of the first reference signal.

[0009] In some specific implementations, if the link quality value of the reference signal detected by the terminal device is greater than or equal to a first threshold, a notification message is sent to the network device. This includes: if the reference signal received power (RSRP) value of the first reference signal is greater than or equal to the first threshold, and / or the signal-to-interference-plus-noise ratio (SINR) value of the first reference signal is greater than or equal to the first threshold, a notification message is sent to the network device. Thus, when the terminal device detects that the beam management conditions are met, it automatically sends a notification message to the network device to trigger the beam management process. This avoids the method in related technologies where the terminal device needs to provide beam measurement results according to the network device's requirements before beam management can be performed, thereby improving the efficiency of identifying the optimal beam.

[0010] In some specific implementations, the first threshold is a value configured by the network device, or a value predefined by the protocol.

[0011] In some specific implementations, the first threshold is the same value as the threshold used for candidate beam detection.

[0012] In some specific implementations, the block error rate corresponding to the first threshold is the product of the block error rate corresponding to the candidate beam detection threshold and the first scaling factor, which is a coefficient configured by the network device.

[0013] In some specific implementations, the method for obtaining the channel-associated link quality value includes: obtaining the channel-associated link quality value based on a second reference signal.

[0014] In some specific implementations, the method for determining the second reference signal includes: determining the second reference signal based on a reference signal used for beam failure detection; and / or determining the second reference signal based on a target reference signal configured in the network device; and / or determining the second reference signal via a demodulation reference signal (DMRS) associated with the Physical Downlink Control Channel (PDCCH); and / or determining the second reference signal via a quasi-co-located reference signal of the DMRS associated with the PDCCH; and / or determining the second reference signal via a reference signal associated with the active Transmission Configuration Indicator (TCI) state; and / or determining the second reference signal via a reference signal associated with the TCI state corresponding to the Control Resource Set (CORESET).

[0015] In some specific implementations, if the link quality value associated with the channel of the terminal device is detected to be less than a second threshold, a notification message is sent to the network device. This includes sending a notification message to the network device if the RSRP value of the second reference signal is detected to be less than the second threshold, and / or if the SINR value of the second reference signal is less than the second threshold. Therefore, when the terminal device detects that the beam management conditions are met, it automatically sends a notification message to the network device to trigger the beam management process. This avoids the method in related technologies where the terminal device needs to provide beam measurement results according to the network device's requirements before beam management can be performed, thereby improving the efficiency of identifying the optimal beam.

[0016] In some specific implementations, the second threshold is a value configured by the network device, or a value predefined by the protocol.

[0017] In some specific implementations, the block error rate corresponding to the second threshold is the product of the block error rate corresponding to the beam failure detection threshold and the second scaling factor, which is a coefficient configured by the network device.

[0018] In some specific implementations, if the link quality value of the reference signal of the terminal device is detected to be greater than the link quality value associated with the channel of the terminal device, a notification message is sent to the network device. This includes: if the RSRP value of the reference signal of the terminal device is detected to be greater than the RSRP value of the link associated with the channel of the terminal device, a notification message is sent to the network device; or, if the SINR value of the reference signal of the terminal device is detected to be greater than the SINR value of the link associated with the channel of the terminal device, a notification message is sent to the network device. Therefore, when the terminal device detects that the beam management conditions are met, it automatically sends a notification message indicating that the beam management conditions have been met to the network device to trigger the beam management process. This avoids the method in related technologies where the terminal device needs to provide beam measurement results according to the requirements of the network device before beam management can be performed, thereby improving the efficiency of identifying the optimal beam.

[0019] In some specific implementations, if the RSRP value of the reference signal of the terminal device is detected to be greater than the RSRP value of the link associated with the channel of the terminal device, a notification message is sent to the network device. This includes: if the RSRP value of the reference signal of the terminal device is detected to be greater than the sum of the RSRP value of the link associated with the channel of the terminal device and a first offset, a notification message is sent to the network device. Therefore, when the terminal device detects that the beam management conditions are met, it automatically sends a notification message indicating that the beam management conditions have been met to the network device to trigger the beam management process. This avoids the method in related technologies where the terminal device needs to provide beam measurement results according to the requirements of the network device before beam management can be performed, thereby improving the efficiency of identifying the optimal beam.

[0020] In some specific implementations, if the SINR value of the reference signal of the terminal device is detected to be greater than the SINR value of the link associated with the terminal device's channel, a notification message is sent to the network device. This includes sending a notification message to the network device if the SINR value of the reference signal of the terminal device is detected to be greater than the sum of the SINR value of the link associated with the terminal device's channel and a first offset. Therefore, when the terminal device detects that the beam management conditions are met, it automatically sends a notification message to the network device to trigger the beam management process. This avoids the method in related technologies where the terminal device needs to provide beam measurement results according to the network device's requirements before beam management can be performed, thereby improving the efficiency of identifying the optimal beam.

[0021] In some specific implementations, notification information is sent to network devices, including via the Physical Uplink Control Channel (PUCCH) and / or the Physical Random Access Channel (PRACH).

[0022] In some specific implementations, sending notification information to network devices includes: sending notification information to network devices immediately after detecting that the terminal device meets the beam management conditions.

[0023] In some specific implementations, notification information is sent to network devices via the Physical Uplink Control Channel (PUCCH) and / or the Physical Random Access Channel (PRACH), including sending notification information to network devices via PUCCH or PRACH depending on the type of beam management conditions.

[0024] In some specific implementations, PUCCH or PRACH is associated with a Channel State (CSI) report configuration.

[0025] In some specific implementations, sending notification information to the network device includes: sending notification information to the network device through a Media Access Control (MAC) CE, wherein the MAC CE includes beam management conditions and / or, first reference signal information, wherein the first reference signal information includes one or more of the following: a reference signal index of the first reference signal, an RSRP value corresponding to the first reference signal, and a SINR value corresponding to the first reference signal.

[0026] In some specific implementations, notification information is sent to network devices via the Media Access Control (MAC) control element CE. This includes sending notification information to network devices by carrying the MAC CE in the Physical Uplink Shared Channel (PUSCH) scheduled in the first downlink control information (DCI) after beam management conditions are met.

[0027] In some specific implementations, notification information is sent to network devices via the Media Access Control (MAC) control element CE, including: sending notification information to network devices by carrying the MAC CE in the first configuration authorization PUSCH sent after the second time when the beam management conditions are met.

[0028] In some specific implementations, receiving feedback information about notifications sent by network devices includes: receiving feedback information about notifications sent by network devices by detecting the PDCCH scheduled in the search space SS or CORESET.

[0029] In some specific implementations, receiving feedback information about notification information sent by the network device includes: if a trigger command is received, which is used to trigger a CSI report corresponding to the configuration of a Channel State CSI report, then receiving feedback information about notification information sent by the network device.

[0030] In some specific implementations, the feedback information regarding notification information sent by the network device is received, including: if a CSI report is received from the network device, then the feedback information regarding notification information sent by the network device is received.

[0031] In some specific implementations, the method also includes: if no feedback is received regarding the notification information after a third time interval following the sending of the notification information to the network device, then the notification information is sent to the network device again.

[0032] Secondly, this application provides a communication method applied to a network device. The method includes: receiving notification information sent by a terminal device, wherein the notification information is received when the terminal device detects that beam management conditions are met, and the beam management conditions are related to the link quality of the terminal device's reference signal and / or the link quality associated with the terminal device's channel; and sending feedback information regarding the notification information to the terminal device. Thus, when the terminal device detects that beam management conditions are met, it automatically sends notification information confirming that the beam management conditions are met to the network device to trigger the beam management process. This avoids the method in related technologies where the terminal device needs to provide beam measurement results according to the network device's requirements before beam management can be performed, thereby improving the efficiency of identifying the optimal beam.

[0033] In some specific implementations, beam management conditions include one or more of the following: the link quality value of the terminal device's reference signal is greater than or equal to a first threshold; the link quality value associated with the terminal device's channel is less than a second threshold; the link quality value of the terminal device's reference signal is greater than or equal to the first threshold and the link quality value associated with the terminal device's channel is less than the second threshold; the link quality value of the terminal device's reference signal is better than the link quality value associated with the terminal device's channel; and the quality change value of the terminal device's channel associated with the link quality value within a first time period is greater than a change threshold. Therefore, when the terminal device detects that the beam management conditions are met, it automatically sends a notification message to the network device to trigger the beam management process. This avoids the method in related technologies where the terminal device needs to provide beam measurement results according to the network device's requirements before beam management can be performed, thereby improving the efficiency of identifying the optimal beam.

[0034] In some specific implementations, receiving notification information sent by the terminal device includes: receiving notification information sent by the terminal device via PUCCH and / or PRACH.

[0035] In some specific implementations, receiving notification information sent by the terminal device includes: receiving notification information sent by the terminal device at the fourth time, where the fourth time is the first time after the terminal device detects that the beam management conditions are met.

[0036] In some specific implementations, notification information sent by the terminal device is received via PUCCH and / or PRACH, including: receiving notification information sent by the terminal device via PUCCH and / or PRACH according to the type of beam management conditions.

[0037] In some specific implementations, PUCCH or PRACH is associated with a Channel State (CSI) report configuration.

[0038] In some specific implementations, receiving notification information sent by the terminal device includes: receiving notification information sent by the terminal device through a Media Access Control (MAC) CE, wherein the MAC CR includes beam management conditions, and / or, first reference signal information, wherein the first reference signal information includes one or more of the following: a reference signal index of the first reference signal, an RSRP value corresponding to the first reference signal, and a SINR value corresponding to the first reference signal.

[0039] In some specific implementations, feedback information regarding the notification is sent to the terminal device, including by detecting the PDCCH scheduled in the search space SS or CORESET.

[0040] Thirdly, this application provides a terminal device, which includes: a memory for storing computer programs or computer instructions; and a processor for executing the computer programs or computer instructions stored in the memory, causing the terminal device to perform the method as described in the first aspect.

[0041] Fourthly, this application provides a network device, which includes: a memory for storing computer programs or computer instructions; and a processor for executing the computer programs or computer instructions stored in the memory, causing the network device to perform the method as described in the second aspect.

[0042] Fifthly, this application provides a communication system, which includes a terminal device and a network device, wherein the terminal device is used to perform the method as described in the first aspect, and the network device is used to perform the method as described in the second aspect.

[0043] Sixthly, this application provides a computer storage medium for storing a computer program, which, when executed, implements the methods of the first and second aspects.

[0044] Seventhly, this application provides a communication device applied to a terminal device, comprising: a notification information sending module and a feedback information receiving module; the notification information sending module is used to send notification information to a network device if it detects that the terminal device meets beam management conditions, wherein the beam management conditions indicate that the channel-associated link of the terminal device needs to be replaced, and the notification information indicates that the channel-associated link of the terminal device will be replaced with a link of the reference signal; the feedback information receiving module is used to receive feedback information from the network device regarding the notification information, wherein the feedback information indicates that the channel-associated link of the terminal device has been replaced with a link of the reference signal. Thus, when the terminal device detects that the beam management conditions are met, it automatically sends notification information indicating that the beam management conditions have been met to the network device to trigger the beam management process, thereby avoiding the method in related technologies where the terminal device needs to provide beam measurement results according to the requirements of the network device before beam management can be performed, thereby improving the efficiency of identifying the optimal beam.

[0045] Eighthly, this application provides a communication device applied to a network device, comprising: a notification information receiving module and a feedback information sending module; the notification information receiving module is used to receive notification information sent by a terminal device, the notification information being received when the terminal device detects that beam management conditions are met, the beam management conditions indicating that the link associated with the terminal device's channel needs to be replaced, and the notification information indicating that the link associated with the terminal device's channel will be replaced with a link of the reference signal; the feedback information sending module is used to send feedback information about the notification information to the terminal device, the feedback information indicating that the link associated with the terminal device's channel has been replaced with a link of the reference signal. Thus, when the terminal device detects that beam management conditions are met, it automatically sends notification information indicating that the beam management conditions have been met to the network device to trigger the beam management process, thereby avoiding the method in related technologies where the terminal device needs to provide feedback on beam measurement results according to the requirements of the network device before beam management can be performed, thereby improving the efficiency of identifying the optimal beam.

[0046] Based on the above technical solution, this application has the following beneficial effects:

[0047] This application provides a communication method and related equipment. When a terminal device detects that the beam management conditions are met, it automatically sends a notification message that the beam management conditions have been met to the network device to trigger the beam management process. This avoids the method in related technologies where the terminal device needs to provide beam measurement results according to the requirements of the network device before beam management can be performed, thereby improving the efficiency of identifying the optimal beam. Attached Figure Description

[0048] Figure 1 An example diagram illustrating a scenario of communication between a base station and a terminal, provided as an embodiment of this application;

[0049] Figure 2 A flowchart illustrating a communication method provided in an embodiment of this application;

[0050] Figure 3 A flowchart illustrating another communication method provided in an embodiment of this application;

[0051] Figure 4 A schematic diagram illustrating the hardware composition of an electronic device provided in an embodiment of this application;

[0052] Figure 5 A schematic diagram illustrating the hardware composition of another electronic device provided in an embodiment of this application;

[0053] Figure 6 A schematic diagram of a communication device provided in an embodiment of this application;

[0054] Figure 7 This is a schematic diagram of another communication device provided in an embodiment of this application. Detailed Implementation

[0055] The terms "first," "second," and "third," etc., used in this application specification, claims, and drawings are used to distinguish different objects, not to limit a specific order.

[0056] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0057] The embodiments of this application are applied to communication systems. These communication systems can be second-generation (2G) communication systems, third-generation (3G) communication systems, LTE systems, fifth-generation (5G) communication systems, Long Term Evolution (LTE) and 5G hybrid architectures, 5G New Radio (5GNR) systems, and other new communication systems that will emerge in future communication developments.

[0058] A communication system includes a first device and a second device. The first device can be a network-side device used to provide network communication functions; in some cases, it is also called a network device or network element. Network devices are typically base stations (including functional units of base stations, or combinations of functional units of base stations) or core network units. Core network units can be functional units within the core network, including but not limited to Access and Mobility Management Function (AMF) units or Session Management Function (SMF) units. The second device can be a device accessing the network, typically a terminal. See also... Figure 1 This figure is an example of a scenario of communication between a base station and a terminal provided in an embodiment of this application. Figure 1 It includes base station 1 and terminal 2.

[0059] In the embodiments provided in this application, the base station can be any device with wireless transceiver capabilities, including but not limited to: evolved base stations (NodeB, eNB, or e-NodeB) in Long Term Evolution (LTE), base stations (gNodeB or gNB) or transmission receiving points / transmission reception points (TRPs) in New Radio (NR), base stations in subsequent 3GPP evolutions, access nodes in Wi-Fi systems, wireless relay nodes, wireless backhaul nodes, etc. The base station can be: macro base station, micro base station, pico base station, small cell, relay station, or balloon station, etc. The base station can include one or more co-located or non-co-located Transmission Reception Points (TRPs). The base station can also be a radio controller, centralized unit (CU), and / or distributed unit (DU) in a cloud radioaccess network (CRAN) scenario. The base station can communicate with the terminal, or it can communicate with the terminal through a relay station. The terminal can communicate with multiple base stations using different technologies. For example, the terminal can communicate with base stations that support LTE networks, base stations that support 5G networks, and can also establish dual connections with both LTE and 5G base stations.

[0060] In the embodiments provided in this application, the terminal can take various forms, such as a mobile phone, tablet computer, computer with wireless transceiver capabilities, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal in industrial control, vehicle-mounted terminal device, wireless terminal in self-driving, wireless terminal in remote medical care, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, wearable terminal device, etc. The terminal may also be referred to as terminal equipment, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal equipment, mobile device, UE terminal equipment, terminal equipment, wireless communication equipment, UE agent, or UE device, etc. The terminal can also be a fixed terminal or a mobile terminal.

[0061] As mentioned earlier, in many mission scenarios, to enhance the communication quality between terminal devices and network devices, network devices send pilot signals for beam management to terminal devices. After receiving the pilot signal, the terminal device measures the quality and characteristics of multiple transmitted or received beams to identify the optimal beam and feeds the measurement results back to the network device. The network device can then instruct the terminal device to use the optimal beam, enabling communication between the terminal device and the network device through that optimal beam.

[0062] However, the process of the terminal device receiving the measurement results from the pilot signal based on the configuration of the network device is delayed, resulting in low efficiency in identifying the optimal beam.

[0063] In view of this, this application provides a communication method and related equipment. In this communication method, when the terminal device detects that the beam management conditions are met, it automatically sends a notification message that the beam management conditions have been met to the network device to trigger the beam management process. This avoids the method in related technologies where the terminal device needs to provide beam measurement results according to the requirements of the network device before beam management can be performed, thereby improving the efficiency of identifying the optimal beam.

[0064] To make the technical solution of this application clearer and easier to understand, the communication method of this application will be described below with reference to the accompanying drawings.

[0065] See Figure 2 This figure is a schematic diagram of a communication method provided in an embodiment of this application. The method is applied to terminal devices, such as mobile phones and computers. The method includes:

[0066] S201: The terminal device checks whether the beam management conditions are met. If so, proceed to step S202.

[0067] When the terminal device detects that at least one of the following five beam management conditions is met, step S202 is executed.

[0068] First, the first beam management condition is introduced. The first beam management condition is that the link quality value of the reference signal is greater than or equal to a first threshold.

[0069] In the field of communications, reference signals are often used to compare and calibrate received signals. They can be a signal of a known pattern or a specific frequency to ensure that information is received and decoded correctly.

[0070] The link quality of a reference signal refers to the performance of the communication link that transmits the reference signal. The link quality of a reference signal can be determined from multiple aspects such as signal strength, signal-to-noise ratio, bit error rate, delay, and coverage. The quality of the link directly affects the reliability and accuracy of the reference signal in the communication system.

[0071] In the communication method disclosed in the embodiments of this application, the link quality of the reference signal is obtained based on a first reference signal. Furthermore, the determination of the first reference signal specifically includes at least one of the following two methods:

[0072] In the first method, the first reference signal is the same as the reference signal used for candidate beam detection. Candidate beam detection refers to the process in a communication system where the receiver detects and evaluates possible transmission beams to select the most suitable beam for the current communication environment, thereby improving the signal quality, coverage, and data transmission rate of the communication system.

[0073] The second type is the first reference signal, which is configured by the base station and is specifically used by the terminal equipment to initiate subsequent beam management procedures.

[0074] In the communication method disclosed in the embodiments of this application, the link quality value of the reference signal can be measured by the Reference Signal Receiving Power (RSRP) value obtained by the terminal device from measuring the first reference signal, or the Signal to Interference plus Noise Ratio (SINR) value. The RSRP value refers to the average signal power received on all REs (resource particles) carrying the reference signal within a certain symbol, and the SINR value refers to the ratio of the strength of the received useful signal to the strength of the received interference signal (noise and interference).

[0075] It should be noted that the higher the RSRP and SINR values, the better the link quality of the reference signal. In other words, the magnitude of RSRP and SINR values ​​is positively correlated with the link quality of the reference signal.

[0076] It should be noted that the link quality of the reference signal may be determined by the link quality of multiple reference signals (e.g., the average of the RSRP values ​​of multiple reference signals), or by one of the link quality values ​​of multiple reference signals. This application does not limit this.

[0077] The first threshold (Threshold 1) is calculated using assumed transmission parameters (e.g., assumed PDCCH transmission parameters) and corresponds to a specific block error rate (BLER), denoted as BLER1. This first threshold can be 10. -1 10 -2 Equivalent, but this application does not limit this.

[0078] In some examples, the first threshold can be configured through network devices such as base stations, or it can be a value predefined by the protocol.

[0079] In other examples, the first threshold may also be the same value as the threshold used for candidate beam detection. The threshold for candidate beam detection is typically a parameter defined according to system design and performance requirements, and is primarily used to discover new candidate beams in the beam failure recovery process.

[0080] In other examples, the first threshold may be a different value from the threshold used for candidate beam detection. Specifically, the block error rate BLER1 corresponding to the first threshold may be the block error rate BLER corresponding to the candidate beam detection threshold multiplied by a scaling factor, which may be configured by network devices such as base stations.

[0081] Next, we will introduce the second beam management condition. The second beam management condition is that the link quality value associated with the channel is less than a second threshold.

[0082] In the field of communications, a channel refers to the medium through which signals are transmitted between network devices and terminal devices, and it directly affects communication quality. The associated link between a channel refers to the communication path or connection between network devices and terminal devices, involving the transmission of signals in space or frequency.

[0083] Channel-associated link quality refers to the performance of signal transmission on a specific link, such as stability and reliability. Channel-associated link quality is affected by a variety of factors, including but not limited to: signal attenuation and fading, multipath effects, interference and noise, weather and environmental conditions, etc.

[0084] In the communication method disclosed in the embodiments of this application, the link quality associated with the channel is obtained based on a second reference signal. Furthermore, the determination method of the second reference signal specifically includes at least one of the following six:

[0085] In the first case, the second reference signal is the same as the reference signal used for beam failure detection. The purpose of beam failure detection is to take timely measures to address or switch to a more suitable beam when a beam is detected to have degraded quality or become unsuitable, thereby improving the signal quality, coverage, and data transmission rate of the communication system.

[0086] The second type, the second reference signal, is a reference signal configured by the base station specifically for the terminal equipment to initiate subsequent beam management procedures.

[0087] The third method involves determining the second reference signal through the demodulation reference signal (DMRS) associated with the Physical Downlink Control Channel (PDCCH). The PDCCH is a channel used by base stations and other network equipment to transmit control information to terminal devices in wireless communication. Its main functions include scheduling assignments, resource indications, and uplink grants. The DMRS is a reference signal used for signal demodulation at the receiver in a wireless communication system. It helps the receiver perform signal detection, channel estimation, and data decoding, thereby achieving a more reliable and efficient wireless communication system.

[0088] Fourthly, the second reference signal is determined by the reference signal of the DMRS quasi-co-location (QCL) associated with the PDCCH. Specifically, if the channel characteristics of a symbol on one antenna port can be derived from those of another antenna port, then the two antenna ports are considered quasi-co-located. That is, in two quasi-co-located ports, the channel estimation result obtained from one port can be used for the other port.

[0089] Fifth, the second reference signal is determined by a reference signal associated with an active Transmission Configuration Indicator (TCI) state. The TCI state, in a communication system, indicates a quasi-co-location relationship between two signals; typically, it indicates at least one reference signal. If a signal or channel is associated with a TCI, then that signal or channel and the reference signal indicated by that TCI state are in a quasi-co-location relationship.

[0090] The sixth method involves determining the second reference signal through reference signals associated with the TCI states of a control resource set (CORESET). A CORESET is a set of resources used for transmitting control signaling, facilitating the control and scheduling of the wireless communication system. It should be noted that only the reference signals associated with the TCI states of a subset of CORESETs can determine the link quality associated with the channel. For example, the second reference signal can only be determined by the reference signals associated with the TCI states of the CORESET with the lowest index, and thus the link quality associated with the channel can be determined using this second reference signal.

[0091] In the communication method disclosed in the embodiments of this application, the link quality of the reference signal can be measured by the RSRP value or SINR value obtained by the terminal measuring the second reference signal. The specific measurement method is similar to the measurement method of the first reference signal described above, and will not be repeated here.

[0092] The second threshold (Threshold 2) is calculated using assumed transmission parameters and corresponds to a specific block error rate (BLER), denoted as BLER2. This second threshold can be 10. -1 10 -2 Equivalent, but this application does not limit this.

[0093] In some examples, the second threshold can be configured through network devices such as base stations, or a value obtained through protocol predefined values.

[0094] In other examples, the second threshold can also be a different value from the threshold used for beam failure detection. The beam failure detection threshold is typically a parameter defined based on system design and performance requirements, primarily used to detect failed beams in the beam failure recovery process. Specifically, the block error rate (BLER2) corresponding to the second threshold can be lower than the BLER corresponding to the beam failure detection threshold; for example, the BLER corresponding to the beam failure detection threshold might be 10. -1 The block error rate (BLER2) corresponding to the second threshold is 5x10. -2 Specifically, the block error rate BLER2 corresponding to the second threshold can be the BLER corresponding to the beam failure detection threshold multiplied by a scaling factor. This scaling factor can be configured by network equipment such as base stations, and the scaling factor is a value greater than 0 and less than 1.

[0095] It should be noted that this second threshold is usually a smaller value than the first threshold. For example, if the block error rate corresponding to the first threshold is 10... -1 Therefore, the block error rate corresponding to the second threshold can be 10. -2 .

[0096] Next, the third beam management condition is introduced. The third beam management condition is that the link quality value of the reference signal is greater than or equal to the first threshold, and the link quality value associated with the channel is less than the second threshold.

[0097] Next, the fourth beam management condition will be introduced. The fourth beam management condition is that the link quality value of the reference signal is better than the link quality value associated with the channel.

[0098] Specifically, the situation where the link quality value of the reference signal is better than the link quality value associated with the channel can be categorized into the following six types:

[0099] The first type is where the RSRP value corresponding to the link quality of the reference signal is greater than or equal to the RSRP value corresponding to the link quality associated with the channel.

[0100] The second method involves setting the RSRP value corresponding to the link quality of the reference signal to be greater than or equal to the RSRP value corresponding to the link quality associated with the channel, plus an offset.

[0101] The third type is where the SINR value corresponding to the link quality of the reference signal is greater than or equal to the SINR value corresponding to the link quality associated with the channel.

[0102] The fourth type is where the SINR value corresponding to the link quality of the reference signal is greater than or equal to the SINR value corresponding to the link quality associated with the channel plus an offset.

[0103] The fifth type is where the block bit error rate corresponding to the link quality value of the reference signal is less than the block bit error rate corresponding to the link quality value associated with the channel.

[0104] The sixth method involves the block bit error rate corresponding to the link quality value of the reference signal being less than the block bit error rate corresponding to the link quality value associated with the channel multiplied by a scaling factor. This scaling factor can be configured by network equipment such as base stations, and the scaling factor is a value greater than 0 and less than 1.

[0105] It is understandable that when one or more of the above six conditions are met, it can be determined that the link quality value of the reference signal is better than the link quality value associated with the channel.

[0106] Finally, the fifth beam management condition is introduced. The fifth beam management condition is that the change in the link quality associated with the channel at time 1 compared to time 2 exceeds a second threshold. In some examples, the link quality associated with the channel at time 1 corresponds to RSRP1, and the link quality associated with the channel at time 2 corresponds to RSRP2. In this case, the fifth beam management condition can be (RSRP1 - RSRP2) greater than the second threshold.

[0107] In other examples, if the channel-associated link quality block error rate is BLER1 at the first time step and the channel-associated link quality block error rate is BLER2 at the second time step, then the fifth beam management condition can be (BLER1-BLER2) greater than the second threshold.

[0108] It should be noted that if the terminal device meets the fifth beam management condition mentioned above, it indicates that the stability of the channel association link of the terminal device is low. Low-stability channel association links may lead to a decrease in communication quality and connection instability in the communication system. For example, this may result in increased packet loss rate, increased communication transmission delay, frequent connection interruptions, difficulty in adaptation, and limited network capacity.

[0109] S202: The terminal device sends a notification message to the network device that the beam management conditions have been met.

[0110] In some specific implementations, this notification information can be sent to network devices such as base stations via the Physical Uplink Control Channel (PUCCH) and / or the Physical Random Access Channel (PRACH). The PUCCH is the physical uplink control channel in a wireless communication system, used to transmit uplink control information. It carries uplink-related control signaling, such as scheduling requests, uplink power control, and ACK / NACK (acknowledgment / negation) feedback. The PRACH is the physical random access channel in a wireless communication system, used by terminal devices for initial network access or to request resources when needed.

[0111] In the communication methods disclosed in the embodiments of this application, different PUCCHs or PRACHs may be associated with different beam management conditions. For example, when a terminal device detects that a first beam management condition is met, it can send a notification message indicating that the beam management condition has been met to the network device via a PRACH. When a terminal device detects that a second beam management condition is met, it can send a notification message indicating that the beam management condition has been met to the network device via another PRACH. This application does not limit the scope of the application.

[0112] In the communication methods disclosed in the embodiments of this application, different PUCCHs or PRACHs may be associated with different Channel State Information (CSI) report configurations. Different CSI report configurations may be associated with different beam management conditions and different reporting content. For example, when a terminal device detects that a first beam management condition is met, it can send a notification message that the beam management condition has been met to a network device via a PUCCH or PRACH. Further, the PUCCH can send beam information, etc., as reporting content to the network device to form a CSI report. When a terminal device detects that a second beam management condition is met, it can send a notification message that the beam management condition has been met to a network device via a PRACH, and use spatial filtering information obtained based on a first reference signal to send the PRACH, such as receiving beam information obtained based on the first reference signal to determine the transmitting beam information of the PRACH.

[0113] In the communication method disclosed in the embodiments of this application, the aforementioned notification information can be sent after a first time T1 following the detection that the terminal device meets the beam management conditions. This first time T1 is related to the terminal capability. It should be noted that this first time can be 1ms (milliseconds), etc., and this application does not limit the specific first time.

[0114] In other specific implementations, this notification information can also be sent to network devices such as base stations via a Media Access Control (MAC) CE. The MAC CE refers to a control element at the MAC layer, situated between the Physical (PHY) and Logical Link Control (RLC) layers. It is used to transmit control information at the MAC layer to achieve effective management and scheduling of radio resources.

[0115] In the communication method disclosed in the embodiments of this application, the MAC CE includes at least the satisfied beam management conditions and / or, first reference signal information.

[0116] In some examples, the first reference signal information may include the reference signal index of the first reference signal, and / or the RSRP and / or SINR value corresponding to the first reference signal. In other examples, it may include the link quality value of the reference signal corresponding to the MAC CE first reference signal, which is greater than or equal to a first threshold.

[0117] In the communication method disclosed in the embodiments of this application, the MAC CE can be transmitted in one of the following physical channels: First, the MAC CE is transmitted in the Physical Uplink Shared Channel (PUSCH) scheduled by the first Downlink Control Information (DCI) after the beam management conditions are met. The PUSCH is used to transmit user data from the terminal device to network devices such as the base station, and the PUSCH allows multiple terminal devices to transmit uplink data on the same time and frequency resources. It should be noted that the PUSCH scheduled by the DCI is not a PUSCH used for data retransmission.

[0118] The second type involves the MAC CE transmitting the first configured grant (CG) PUSCH after a second time T2 following the fulfillment of beam management conditions. In a communication system, the configuration or grant of specific resources allows a terminal device to perform specific types of communication activities within a certain spectrum and time range. It should be noted that this second time T2 is related to the terminal's capabilities.

[0119] S203: The terminal device receives feedback information from the network device regarding the notification information.

[0120] In the communication method disclosed in the embodiments of this application, the feedback information corresponding to the notification information can be obtained through one of the following methods:

[0121] The first scenario involves the terminal device detecting a PDCCH scheduled within the search space specifically used for initiating beam management procedures, or within the control resource set (CORESET). Specifically, the terminal device can listen to either the search space or the PDCCH scheduled within the control resource set. If a PDCCH is detected, it indicates that the terminal device has received feedback regarding the notification information, and can then perform the corresponding operation based on the instructions within the feedback information.

[0122] Second, the terminal device detects another PUSCH with the same HARQ ID as the PUSCH carrying the MAC CE. HARQ is an Automatic Repeat Request mechanism used to improve uplink and downlink reliability. The HARQ ID is a unique identifier assigned to each HARQ process. Specifically, if the terminal device detects another PUSCH with the same HARQ ID as the PUSCH carrying the MAC CE, it means the terminal device has received feedback information regarding the notification, and can then perform the corresponding operation based on the instructions in the feedback information.

[0123] Third, the terminal device receives an activation command for a CSI report. It should be noted that this CSI report is associated with the aforementioned beam management conditions, or with the aforementioned first reference signal. Furthermore, the CSI report mentioned above is the same CSI report associated with the aforementioned notification information.

[0124] It should be noted that if the terminal device does not receive feedback regarding the notification within the target time period after sending the notification, the terminal needs to continue sending the notification until it receives feedback. This target time period is the third time T3, and it should be noted that this third time T3 is related to the terminal's capabilities.

[0125] In summary, this application discloses a communication method in which, when a terminal device detects that the beam management conditions are met, it automatically sends a notification message indicating that the beam management conditions have been met to the network device to trigger the beam management process. This avoids the method in related technologies where the terminal device needs to provide beam measurement results according to the requirements of the network device before beam management can be performed, thereby improving the efficiency of identifying the optimal beam.

[0126] See Figure 3 This figure is a schematic diagram of another communication method provided in an embodiment of this application. This method is applied to network devices, such as base stations. The method includes:

[0127] S301: The network device receives a notification message from the terminal device indicating that the beam management conditions have been met.

[0128] In some specific implementations, the beam management conditions include at least one of the following: the link quality value of the reference signal of the terminal device is greater than or equal to a first threshold; the link quality value associated with the channel of the terminal device is less than a second threshold; the link quality value of the reference signal of the terminal device is greater than or equal to the first threshold and the link quality value associated with the channel of the terminal device is less than the second threshold; the link quality value of the reference signal of the terminal device is better than the link quality value associated with the channel of the terminal device; and the quality change value of the link quality value associated with the channel of the terminal device within a first time period is greater than a change threshold.

[0129] In some specific implementations, receiving notification information sent by the terminal device includes: receiving notification information sent by the terminal device via PUCCH and / or PRACH.

[0130] In some specific implementations, receiving notification information sent by the terminal device includes: receiving notification information sent by the terminal device at the fourth time, where the fourth time is the first time after the terminal device detects that the beam management conditions are met.

[0131] In some specific implementations, notification information sent by the terminal device is received via PUCCH and / or PRACH, including: receiving notification information sent by the terminal device via PUCCH and / or PRACH according to the type of beam management conditions.

[0132] In some specific implementations, PUCCH or PRACH is associated with a Channel State (CSI) report configuration.

[0133] In some specific implementations, receiving notification information sent by the terminal device includes: receiving notification information sent by the terminal device through a Media Access Control (MAC) CE, wherein the MAC CE includes beam management conditions and / or, first reference signal information, wherein the first reference signal information includes one or more of the following: a reference signal index of the first reference signal, an RSRP value corresponding to the first reference signal, and a SINR value corresponding to the first reference signal.

[0134] In some specific implementations, feedback information regarding the notification is sent to the terminal device, including by detecting the PDCCH scheduled in the search space SS or CORESET.

[0135] S302: The network device sends feedback information about the notification to the terminal device.

[0136] In summary, this application discloses a communication method in which, after a network device receives a notification from a terminal device indicating that the beam management conditions have been met, the network device sends feedback information about the notification to the terminal device, thereby improving the efficiency of identifying the optimal beam.

[0137] Based on the aforementioned communication method, this application also provides an electronic device for performing the aforementioned communication method. The following description is in conjunction with embodiments.

[0138] See Figure 4 This figure is a schematic diagram of the hardware composition of an electronic device provided in an embodiment of this application. The electronic device may be a first device, including but not limited to a base station and a core network unit. Figure 4 A simplified schematic diagram of a base station structure is shown. The base station includes sections 410, 420, and 430. Section 410 is mainly used for baseband processing and base station control; section 410 is typically the control center of the base station, often referred to as a processor, used to control the base station to perform the processing operations on the first device side in the above method embodiments. Section 420 is mainly used to store computer program code and data. Section 430 is mainly used for the transmission and reception of radio frequency signals and the conversion between radio frequency signals and baseband signals; section 430 is often referred to as a transceiver module, transceiver, transceiver circuit, or transceiver unit. The transceiver module of section 430, also referred to as a transceiver or transceiver unit, includes an antenna 433 and a radio frequency circuit (not shown in the figure), wherein the radio frequency circuit is mainly used for radio frequency processing. Optionally, the device in section 430 used to implement the receiving function can be regarded as a receiver, and the device used to implement the transmitting function can be regarded as a transmitter; that is, section 430 includes a receiver 432 and a transmitter 431. A receiver can also be called a receiving module, receiver, or receiving circuit, while a transmitter can be called a transmitting module, transmitter, or transmitting circuit.

[0139] Sections 410 and 420 may include one or more circuit boards, each of which may include one or more processors and one or more memories. The processors are used to read and execute programs from the memories to implement baseband processing functions and control the base station. If multiple circuit boards exist, they can be interconnected to enhance processing capabilities. As an alternative implementation, multiple circuit boards may share one or more processors, multiple circuit boards may share one or more memories, or multiple circuit boards may simultaneously share one or more processors.

[0140] For example, in one implementation, the transceiver module of section 430 is used to execute the transceiver-related processes performed by the base station (first device) in the aforementioned method embodiments. The processor of section 410 is used to execute the processing-related processes performed by the base station in the aforementioned method embodiments.

[0141] It should be understood that Figure 4 This is for illustrative purposes only and not as a limitation. The network devices mentioned above, including processors, memory, and transceivers, may be independent of... Figure 4 The structure shown.

[0142] See Figure 5 This figure is a schematic diagram of the hardware composition of another electronic device provided in an embodiment of this application. The electronic device can be a second device, which can be a terminal, including but not limited to mobile phones, smart wearable devices (such as smartwatches), and other electronic devices. Taking a mobile phone as an example, the electronic device may include a processor 510, an external memory interface 520, an internal memory 521, antenna 1, antenna 2, a mobile communication module 530, and a wireless communication module 540, etc.

[0143] It is understood that the structure illustrated in this embodiment does not constitute a specific limitation on the electronic device. In other embodiments, the electronic device may include more or fewer components than illustrated, or combine some components, or split some components, or have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0144] Processor 510 may include one or more processing units, such as application processor (AP), modem processor, graphics processing unit (GPU), image signal processor (ISP), controller, video codec, digital signal processor (DSP), baseband processor, and / or neural network processing unit (NPU). These different processing units may be independent devices or integrated into one or more processors.

[0145] It is understood that the interface connection relationships between the modules illustrated in this embodiment are merely illustrative and do not constitute a limitation on the structure of the electronic device. In other embodiments of this application, the electronic device may also employ different interface connection methods or combinations of multiple interface connection methods as described in the above embodiments.

[0146] The external storage interface 520 can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the electronic device. The external memory card communicates with the processor 510 through the external storage interface 520 to perform data storage functions. For example, music, video, and other files can be saved on the external memory card.

[0147] Internal memory 521 can be used to store executable program code, including instructions. Processor 510 executes various functional applications and data processing of the electronic device by running the instructions stored in internal memory 521. Internal memory 521 may include a program storage area and a data storage area. The program storage area may store the operating system, at least one application program required for a function (such as sound playback, image playback, etc.), etc. The data storage area may store data created during the use of the electronic device (such as audio data, phonebook, etc.). Furthermore, internal memory 521 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, universal flash storage (UFS), etc. Processor 510 executes various functional applications and data processing of the electronic device by running instructions stored in internal memory 521 and / or instructions stored in memory located within the processor.

[0148] The wireless communication function of the electronic device can be realized through antenna 1, antenna 2, mobile communication module 530, wireless communication module 540, modem processor and baseband processor, etc.

[0149] Antenna 1 and antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in the electronic device can be used to cover one or more communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example, antenna 1 can be reused as a diversity antenna for a wireless local area network. In some other embodiments, the antennas can be used in conjunction with a tuning switch.

[0150] The mobile communication module 530 can provide solutions for wireless communication applications including 2G / 3G / 4G / 5G in electronic devices. The mobile communication module 530 may include at least one filter, switch, power amplifier, low noise amplifier (LNA), etc. The mobile communication module 530 can receive electromagnetic waves via antenna 1, and perform filtering, amplification, and other processing on the received electromagnetic waves before transmitting them to a modem processor for demodulation. The mobile communication module 530 can also amplify the signal modulated by the modem processor and convert it into electromagnetic waves for radiation via antenna 1. In some embodiments, at least some functional modules of the mobile communication module 530 may be housed in the processor 510. In some embodiments, at least some functional modules of the mobile communication module 530 and at least some modules of the processor 510 may be housed in the same device.

[0151] In some embodiments, the electronic device initiates or receives a call request via the mobile communication module 530 and the antenna 1.

[0152] Furthermore, an operating system runs on top of the aforementioned components. Examples include iOS, Android, and Windows operating systems. Applications can be installed and run on this operating system. Those skilled in the art will understand that, for the sake of convenience and brevity, explanations and beneficial effects of the relevant content in any of the above-described electronic devices can be found in the corresponding method embodiments provided above, and will not be repeated here.

[0153] This application also provides a communication system, which may include, for example, Figure 4 The first device shown (e.g., a network device such as a base station) and such as Figure 5 The second device shown is (e.g., a mobile phone or other terminal).

[0154] In this application, the terminal or network device may include a hardware layer, an operating system layer running on top of the hardware layer, and an application layer running on top of the operating system layer. The hardware layer may include hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also known as main memory). The operating system layer may be any one or more computer operating systems that implement business processing through processes, such as Linux, Unix, Android, iOS, or Windows. The application layer may include applications such as browsers, address books, word processing software, and instant messaging software.

[0155] See Figure 6 The figure is a schematic diagram of a communication device provided in an embodiment of this application. The communication device 600 is applied to a terminal device and includes: a notification information sending module 601 and a feedback information receiving module 602.

[0156] Specifically, the notification information sending module 601 is used to send notification information to the network device when it detects that the terminal device meets the beam management conditions. The beam management conditions are related to the link quality of the reference signal of the terminal device and / or the link quality associated with the channel of the terminal device.

[0157] The feedback information receiving module 602 is used to receive feedback information about notification information sent by network devices.

[0158] In summary, this application discloses a communication device that automatically sends a notification message indicating that beam management conditions have been met to a network device when the terminal device detects that the beam management conditions have been met, thereby triggering the beam management process. This avoids the method in related technologies where the terminal device needs to provide beam measurement results according to the requirements of the network device before beam management can be performed, thereby improving the efficiency of identifying the optimal beam.

[0159] See Figure 7 The figure is a schematic diagram of another communication device provided in an embodiment of this application. The communication device 700 is applied to a network device and includes: a notification information receiving module 701 and a feedback information sending module 702.

[0160] Specifically, the notification information receiving module 701 is used to receive notification information sent by the terminal device. The notification information is received when the terminal device detects that the beam management conditions are met. The beam management conditions are related to the link quality of the reference signal of the terminal device and / or the link quality associated with the channel of the terminal device.

[0161] The feedback information sending module 702 is used to send feedback information about the notification information to the terminal device.

[0162] In summary, this application discloses a communication device that automatically sends a notification message indicating that beam management conditions have been met to a network device when the terminal device detects that the beam management conditions have been met, thereby triggering the beam management process. This avoids the method in related technologies where the terminal device needs to provide beam measurement results according to the requirements of the network device before beam management can be performed, thereby improving the efficiency of identifying the optimal beam.

[0163] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and apparatuses described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0164] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A communication method, characterized in that, Applied to a terminal device, the method includes: If the terminal device is detected to meet the beam management conditions, a notification message is sent to the network device. The beam management conditions are related to the link quality of the reference signal of the terminal device and / or the link quality associated with the channel of the terminal device. The system receives feedback information from the network device regarding the notification information, and the feedback information is used to trigger a Channel State Indicator (CSI) report.

2. The method according to claim 1, characterized in that, The beam management conditions include at least one of the following: The link quality value of the reference signal of the terminal device is greater than or equal to a first threshold, the link quality value associated with the channel of the terminal device is less than a second threshold, the link quality value of the reference signal of the terminal device is greater than or equal to the first threshold and the link quality value associated with the channel of the terminal device is less than the second threshold, the link quality value of the reference signal of the terminal device is better than the link quality value associated with the channel of the terminal device, and the quality change value of the link quality value associated with the channel of the terminal device within a first time period is greater than a change threshold.

3. The method according to claim 2, characterized in that, The method for obtaining the link quality value of the reference signal includes: A first reference signal is determined based on a reference signal used for candidate beam detection, and / or based on a target reference signal configured in the network device. Obtain the link quality value of the first reference signal.

4. The method according to claim 3, characterized in that, If the link quality value of the reference signal of the terminal device is detected to be greater than or equal to a first threshold, a notification message is sent to the network device, including: If the reference signal received power (RSRP) of the first reference signal is detected to be greater than or equal to the first threshold, and / or the signal-to-interference-plus-noise ratio (SINR) of the first reference signal is greater than or equal to the first threshold, a notification message is sent to the network device.

5. The method according to claim 2, characterized in that, The first threshold is a value configured by the network device, or a value predefined by the protocol.

6. The method according to claim 2, characterized in that, The first threshold is the same value as the threshold used for candidate beam detection.

7. The method according to claim 2, characterized in that, The block error rate corresponding to the first threshold is the product of the block error rate corresponding to the candidate beam detection threshold and the first scaling factor, which is a factor configured by the network device.

8. The method according to claim 2, characterized in that, The method for obtaining the link quality value associated with the channel includes: Based on the second reference signal, the link quality value associated with the channel is obtained.

9. The method according to claim 8, characterized in that, The method for determining the second reference signal includes: A second reference signal is determined based on the reference signal used for beam failure detection; And / or, determine a second reference signal based on the target reference signal configured in the network device; And / or, determine the second reference signal by means of the demodulation reference signal DMRS associated with the physical downlink control channel PDCCH; And / or, determine the second reference signal by means of the DMRS quasi-co-address reference signal associated with the PDCCH; And / or, determine the second reference signal by means of a reference signal associated with the activated transmission configuration indicating the TCI state; And / or, determine the second reference signal by controlling the reference signal associated with the TCI state corresponding to the resource set CORESET.

10. The method according to claim 8, characterized in that, If the link quality value associated with the channel of the terminal device is detected to be less than the second threshold, a notification message is sent to the network device, including: If the RSRP value of the second reference signal is detected to be less than the second threshold, and / or the SINR value of the second reference signal is less than the second threshold, a notification message is sent to the network device.

11. The method according to claim 2, characterized in that, The second threshold is a value configured by the network device, or a value obtained through protocol predefinition.

12. The method according to claim 2, characterized in that, The block error rate corresponding to the second threshold is the product of the block error rate corresponding to the beam failure detection threshold and the second scaling factor, which is a factor configured by the network device.

13. The method according to claim 2, characterized in that, If the link quality value of the reference signal of the terminal device is detected to be greater than the link quality value associated with the channel of the terminal device, a notification message is sent to the network device, including: If the RSRP value of the reference signal of the terminal device is detected to be greater than the RSRP value of the link associated with the channel of the terminal device, a notification message is sent to the network device. Alternatively, if the SINR value of the reference signal of the terminal device is detected to be greater than the SINR value of the link associated with the channel of the terminal device, a notification message is sent to the network device.

14. The method according to claim 13, characterized in that, If the RSRP value of the reference signal of the terminal device is detected to be greater than the RSRP value of the link associated with the channel of the terminal device, a notification message is sent to the network device, including: If the RSRP value of the reference signal of the terminal device is detected to be greater than the sum of the RSRP value of the link associated with the channel of the terminal device and the first offset, a notification message is sent to the network device.

15. The method according to claim 13, characterized in that, If the SINR value of the reference signal of the terminal device is detected to be greater than the SINR value of the link associated with the channel of the terminal device, a notification message is sent to the network device, including: If the SINR value of the reference signal of the terminal device is detected to be greater than the sum of the SINR value of the link associated with the channel of the terminal device and the first offset, a notification message is sent to the network device.

16. The method according to claim 1, characterized in that, Sending notification information to network devices includes: Notification information is sent to network devices via the Physical Uplink Control Channel (PUCCH) and / or the Physical Random Access Channel (PRACH).

17. The method according to claim 16, characterized in that, Sending notification information to network devices includes: Upon detecting that the terminal device meets the beam management conditions, a notification message is sent to the network device.

18. The method according to claim 16, characterized in that, The step of sending notification information to network devices via the Physical Uplink Control Channel (PUCCH) and / or the Physical Random Access Channel (PRACH) includes: Depending on the type of beam management conditions, notification information is sent to network devices via PUCCH or PRACH.

19. The method according to claim 18, characterized in that, The configuration of the PUCCH or PRACH associated with a CSI report.

20. The method according to claim 19, characterized in that, The CSI report is associated with the beam management conditions.

21. The method according to claim 1, characterized in that, Sending notification information to network devices includes: The MAC CE (Media Access Control Element) sends notification information to the network device. The MAC CE includes the beam management conditions and / or first reference signal information, which includes one or more of the following: a reference signal index of a first reference signal, an RSRP value corresponding to the first reference signal, and a SINR value corresponding to the first reference signal.

22. The method according to claim 21, characterized in that, The method of sending notification information to network devices via the Media Access Control (MACCE) element includes: In the Physical Uplink Shared Channel (PUSCH) scheduled by the first Downlink Control Information (DCI) after the beam management conditions are met, the MAC CE is carried to send notification information to the network device.

23. The method according to claim 21, characterized in that, The method of sending notification information to network devices via the Media Access Control (MACCE) element includes: The first configuration authorization PUSCH sent after the second time when the beam management conditions are met carries the MACCE and sends a notification message to the network device.

24. The method according to claim 1, characterized in that, The method further includes: If no feedback is received regarding the notification information after a third period of time following the sending of the notification information to the network device, the notification information is sent to the network device again.

25. A communication method, characterized in that, Applied to network devices, the method includes: The terminal device receives notification information when it detects that beam management conditions are met. The beam management conditions are related to the link quality of the terminal device's reference signal and / or the link quality associated with the terminal device's channel. Feedback information regarding the notification is sent to the terminal device, and the feedback information is used to trigger a Channel State (CSI) report.

26. The method according to claim 25, characterized in that, The beam management conditions include at least one of the following: The link quality value of the reference signal of the terminal device is greater than or equal to a first threshold, the link quality value associated with the channel of the terminal device is less than a second threshold, the link quality value of the reference signal of the terminal device is greater than or equal to the first threshold and the link quality value associated with the channel of the terminal device is less than the second threshold, the link quality value of the reference signal of the terminal device is better than the link quality value associated with the channel of the terminal device, and the quality change value of the link quality value associated with the channel of the terminal device within a first time period is greater than a change threshold.

27. The method according to claim 26, characterized in that, The notification information sent by the receiving terminal device includes: Receive notification information sent by terminal devices via PUCCH and / or PRACH.

28. The method according to claim 27, characterized in that, The notification information sent by the receiving terminal device includes: The terminal device receives a notification message at the fourth time point, which is the first time point after the terminal device detects that the beam management conditions are met.

29. The method according to claim 27, characterized in that, The receiving of notification information sent by the terminal device via PUCCH and / or PRACH includes: Depending on the type of beam management conditions, notification information sent by the terminal device is received via PUCCH and / or PRACH.

30. The method according to claim 29, characterized in that, The PUCCH or PRACH is configured to be associated with a Channel State CSI report.

31. The method according to claim 25, characterized in that, The notification information sent by the receiving terminal device includes: The MAC CE receives notification information sent by the terminal device. The MAC CE includes the beam management conditions and / or first reference signal information. The first reference signal information includes one or more of the following: a reference signal index of a first reference signal, an RSRP value corresponding to the first reference signal, and a SINR value corresponding to the first reference signal.

32. The method according to claim 25, characterized in that, Sending feedback information regarding the notification to the terminal device includes: By detecting the PDCCH scheduled in the search space SS or CORESET, feedback information regarding the notification information is sent to the terminal device.

33. A terminal device, characterized in that, The terminal device includes: Memory is used to store computer programs or computer instructions; A processor for executing a computer program or computer instructions stored in the memory, causing the terminal device to perform the method as described in any one of claims 1 to 24.

34. A network device, characterized in that, The network device includes: Memory is used to store computer programs or computer instructions; A processor for executing a computer program or computer instructions stored in the memory, causing the network device to perform the method as described in any one of claims 25 to 32.

35. A communication system, characterized in that, The system includes a terminal device and the network device, the terminal device being configured to perform the method as described in any one of claims 1 to 24, and the network device being configured to perform the method as described in any one of claims 25 to 32.

36. A computer storage medium for storing a computer program, which, when executed, performs the method according to any one of claims 1 to 32.

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