Method, apparatus, terminal and network side device for detecting and configuring reference signals

Abstract

The application discloses a method and device for detecting and configuring a reference signal, a terminal and a network side device, and belongs to the technical field of communication. The method for detecting a reference signal comprises the following steps: a terminal receives indication signaling, the indication signaling carries first identification information and / or second identification information, wherein the first identification information is used for identifying a transmission configuration indication (TCI) state pool / group, and the second identification information is used for identifying a target TCI state in the TCI state pool / group; and the terminal detects a target reference signal according to the first identification information and / or the second identification information.

Description

Technical Field

[0001] This application belongs to the field of communication technology, and specifically relates to a method, apparatus, terminal and network-side equipment for detecting and configuring reference signals. Background Technology

[0002] Beamforming technology can be used to amplify high-frequency signals to improve high-frequency coverage. With the development of wireless communication technology, narrower beams will be used to compensate for path loss, thus the total number of beams will increase dramatically.

[0003] In related technologies, apart from the reference signals transmitted on the Synchronization Signal (SS) / Physical Broadcast Channel (PBCH), all other reference signals require a valid Transmission Configuration Indicator (TCI) state for indication. Therefore, when the number of beams increases dramatically, the probability of network-side devices reconfiguring TCI states also increases. Furthermore, in related technologies, network-side devices reconfigure TCI states through Radio Resource Control (RRC) signaling, which has a relatively long delay.

[0004] Meanwhile, with the introduction of larger sub-carrier spaces (SCS), the time in each slot becomes very short. At this point, the delay caused by RRC reconfiguration will have a significant impact on the communication system.

[0005] As can be seen from the above, the related technologies have a problem of reduced communication performance of the communication system due to long delays during the RRC reconfiguration process of TCI state. Summary of the Invention

[0006] This application provides a method, apparatus, terminal, and network-side device for detecting and configuring reference signals, which can solve the problem in related technologies where the long delay in the process of reconfiguring the TCI state reduces the communication performance of the communication system.

[0007] Firstly, a method for detecting a reference signal is provided, the method comprising:

[0008] The terminal receives an indication signaling message, which carries first identification information and / or second identification information, wherein the first identification information is used to identify the Transmission Configuration Indication TCI state pool / group, and the second identification information is used to identify the target TCI state in the TCI state pool / group;

[0009] The terminal detects the target reference signal based on the first identification information and / or the second identification information.

[0010] Secondly, a device for detecting a reference signal is provided, applied to a terminal, the device comprising:

[0011] The first receiving module is configured to receive indication signaling, the indication signaling carrying first identification information and / or second identification information, wherein the first identification information is used to identify the Transmission Configuration Indication TCI state pool / group, and the second identification information is used to identify the target TCI state in the TCI state pool / group;

[0012] The first detection module is used to detect the target reference signal based on the first identification information and / or the second identification information.

[0013] Thirdly, a method for configuring a reference signal is provided, the method comprising:

[0014] The network-side device determines N TCI state pools / groups based on M Transmission Configuration Indicator (TCI) states, where N is an integer greater than or equal to 1 and M is an integer greater than N.

[0015] The network-side device sends an indication signaling message, wherein the indication signaling message carries first identification information and / or second identification information, wherein the first identification information is used to identify the TCI state pool / group, and the second identification information is used to identify the target TCI state in the TCI state pool / group.

[0016] Fourthly, an apparatus for configuring reference signals is provided, applied to network-side equipment, the apparatus comprising:

[0017] The determination module is used to determine N TCI state pools / groups based on M Transmission Configuration Indicator (TCI) states, where N is an integer greater than or equal to 1 and M is an integer greater than N.

[0018] The third sending module is used to send indication signaling, wherein the indication signaling carries first identification information and / or second identification information, wherein the first identification information is used to identify the TCI state pool / group, and the second identification information is used to identify the target TCI state in the TCI state pool / group.

[0019] Fifthly, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the first aspect.

[0020] In a sixth aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is used to receive indication signaling, the indication signaling carrying first identification information and / or second identification information, wherein the first identification information is used to identify a Transmission Configuration Indication (TCI) state pool / group, and the second identification information is used to identify a target TCI state in the TCI state pool / group; the communication interface is also used to detect a target reference signal based on the first identification information and / or the second identification information.

[0021] In a seventh aspect, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method as described in the third aspect.

[0022] Eighthly, a network-side device is provided, including a processor and a communication interface, wherein the processor is configured to determine N TCI state pools / groups based on M Transmission Configuration Indicator (TCI) states, where N is an integer greater than or equal to 1 and M is an integer greater than N; the communication interface is configured to send indication signaling, wherein the indication signaling carries first identification information and / or second identification information, wherein the first identification information is used to identify the TCI state pool / group, and the second identification information is used to identify the target TCI state in the TCI state pool / group.

[0023] A ninth aspect provides a communication system comprising: a terminal and a network-side device, wherein the terminal is configured to perform the steps of the method for detecting a reference signal as described in the first aspect, and the network-side device is configured to perform the steps of the method for configuring a reference signal as described in the third aspect.

[0024] In a tenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the third aspect.

[0025] Eleventhly, a chip is provided, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the third aspect.

[0026] In a twelfth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method for detecting a reference signal as described in the first aspect, or the steps of the method for configuring a reference signal as described in the third aspect.

[0027] In this embodiment, the terminal receives an indication signaling message carrying first identification information and / or second identification information. The first identification information identifies a Transmission Configuration Indication (TCI) state pool / group, and the second identification information identifies a target TCI state within the TCI state pool / group. The terminal detects a target reference signal based on the first and / or second identification information. Thus, the terminal can detect the reference signal corresponding to a specified TCI state and / or the reference signal corresponding to a specified TCI state in a specified TCI state pool / group based on the received indication signaling message. This allows for the reconfiguration of the TCI state pool / group or TCI state using the indication signaling message. Compared to RRC reconfiguration in related technologies, this method has shorter latency, thereby improving the communication performance of the communication system. Attached Figure Description

[0028] Figure 1 This is a block diagram of a wireless communication system that can be applied to the embodiments of this application;

[0029] Figure 2 This is a schematic diagram of the SSB signal transmission process;

[0030] Figure 3 This is a schematic diagram of the downlink beam selection and determination process;

[0031] Figure 4 This is a schematic diagram of the beam failure detection process;

[0032] Figure 5 This is a flowchart of a method for detecting a reference signal provided in an embodiment of this application;

[0033] Figure 6 This is a schematic diagram of the TCI state pool / group in a method for detecting a reference signal provided in an embodiment of this application;

[0034] Figure 7 This is an application scenario diagram of a specific embodiment of this application;

[0035] Figure 8 This is an application scenario diagram of a specific embodiment two of this application;

[0036] Figure 9 This is a flowchart of a method for configuring a reference signal provided in an embodiment of this application.

[0037] Figure 10 This is a schematic diagram of the structure of a device for detecting a reference signal provided in an embodiment of this application;

[0038] Figure 11 This is a schematic diagram of a device for configuring a reference signal provided in an embodiment of this application;

[0039] Figure 12 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0040] Figure 13 This is a schematic diagram of the structure of a terminal provided in an embodiment of this application;

[0041] Figure 14 This is a schematic diagram of the structure of a network-side device provided in an embodiment of this application. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0043] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0044] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and NR terminology is used in most of the following description; however, these technologies can also be applied to applications beyond NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0045] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. Terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that the specific type of terminal 11 is not limited in this embodiment. Network-side equipment 12 may include access network equipment or core network equipment. Access network equipment 12 may also be referred to as radio access network equipment, radio access network (RAN), radio access network function, or radio access network unit. Access network equipment 12 may include base stations, WLAN access points, or WiFi nodes, etc. Base stations may be referred to as Node B, evolved Node B (eNB), access point, base transceiver station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home B node, home evolved B node, Transmitting Receiving Point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this application embodiment, only a base station in an NR system is used as an example for description, and the specific type of base station is not limited.

[0046] Due to the scarcity of low-frequency resources, 5G NR uses high-frequency bands such as millimeter waves. Since high-frequency bands experience greater propagation loss than low-frequency bands, their coverage distance is inferior to LTE. To address this issue, one solution is for 5G to enhance the signal through multi-antenna beamforming, thereby improving coverage.

[0047] Beamforming is a signal processing technique that uses sensor arrays to transmit and receive signals in a directional manner. Beamforming adjusts the parameters of the basic units of a phase array so that signals at certain angles undergo constructive interference, while signals at other angles undergo destructive interference, thus directing the antenna beam in a specific direction. Downlink beamforming is typically determined using the Synchronization Signal and PBCH block (SSB) and the Channel State Information (CSI) Reference Signal (RS).

[0048] Taking SSB as an example: Due to the narrow beam, in NR, the same SSB is transmitted in different directions via a beam using Time Division Duplex (TDD) so that user equipment (UE) in each direction can receive the SSB. For example: Figure 2 As shown, within a 5ms time domain, the base station transmits multiple SSBs (each SSB has its own SSB identifier (Index)) to cover different directions. Correspondingly, the UE receives multiple SSBs with different signal strengths and selects the one with the strongest signal strength as its own SSB beam. The NR random access procedure uses beams, where SSBs have multiple transmission opportunities within the time domain period and are assigned corresponding numbers, each corresponding to a different beam. For the UE, it only has the opportunity to transmit a preamble when the SSB's beam scanning signal covers the UE. When the network receives the UE's preamble, it knows the optimal downlink beam. Therefore, the SSB needs to be associated with the preamble. Preambles can only be transmitted when the Physical Random Access Channel (PRACH) is configured (i.e., a PRACH occasion). In other words, the SSB is associated with the PRACH occasion.

[0049] Furthermore, downlink beam selection and determination are involved when the base station and UE conduct downlink communication, such as... Figure 3As shown, the downlink beam selection and determination specifically includes the following three steps:

[0050] Step 1. The base station transmitter (Tx) performs beam scanning by transmitting SSB signals (where one SSB signal corresponds to one Tx wide beam). The base station side and the UE side traverse each beam respectively, and the UE side needs to find a suitable receiving (Rx) beam for each SSB signal (because SSB is the top layer of Quasi co-location (QCL), it is necessary to ensure that each SSB corresponds to a suitable Rx beam).

[0051] Step 2. Within the Tx wide beam range determined in Step 1, Tx performs beam refinement scanning by transmitting CSI-RS (which can be periodic, semi-continuous, or aperiodic) or SSB (which can only be periodic) signals, while the UE's Rx beam remains unchanged, in order to determine the Tx narrow beam.

[0052] Step 3. The base station fixes the Tx beam as the Tx narrow beam determined in Step 2 and sends a CSI-RS (repetition enabled, i.e., QCL relationship is not configured, the UE can receive and scan autonomously) signal. The UE side performs beam scanning on Rx to determine the Rx beam.

[0053] In practice, after the UE determines the Rx beam, the UE monitors the communication quality of the Physical downlink control channel (PDCCH) through periodic reference signals. If it finds that the channel cannot provide reliable communication, the UE will announce beam failure and then inform the base station of the failure indication and a new suitable beam to perform beam failure recovery (BFR).

[0054] Specifically, BFR is a process that combines L1 (physical layer) and L2 (medium access control, MAC) operations. The beam failure detection (BFD) and recovery process involves relevant protocols of the MAC layer in L2, which can also be called link recovery. BFR consists of the following four parts: BFD, New candidate beam identification (NBI), Beam Failure Recovery Request (BFRQ), and beam recovery.

[0055] 1. Beam failure detection

[0056] The terminal measures the beam failure detection reference signal (BFD RS) at the physical layer and determines whether a beam failure event has occurred based on the measurement results. The determination condition is: if the metric (i.e., the hypothetical block error rate (BLER) of the PDCCH) for all control beams meets a preset condition (i.e., exceeds a preset BLER threshold), it is identified as a beam failure instance (BFI). The UE physical layer reports this to the higher layer (i.e., the MAC layer). This reporting process is periodic; the BFI reporting period is the shortest period of the BFD RS, with a lower limit of 2ms. Figure 4 As shown, the UE's higher layers use counters and timers (such as the beam failure recovery timer, hereinafter referred to as "timer") to count the BFI indications reported by the physical layer. Each time a BFI indication is received, the timer is restarted. If the timer times out, the counter restarts counting. When the counter reaches the maximum number of counts configured by the network, the UE declares a beam failure event. The UE's MAC layer counter and timer are configured for each active Bandwidth Part (BWP), and the startup and maintenance of the counter and timer on each BWP are independent.

[0057] BFD RS can be configured either explicitly or implicitly.

[0058] 1) Display configuration: The network side configures periodic CSI-RS resources as BFD-RS to the UE via RRC.

[0059] It is important to note that the BFD-RS must have a QCL relationship with the PDCCH Demodulation Reference Signal (DMRS) (Control Resource Set (CORESET)). In implementation, a single RRC message may be used to jointly configure the RS used for BFD and RadioLink Monitor (RLM) to reduce configuration signaling overhead.

[0060] 2) Implicit Configuration: The BFD-RS is determined by the RS in the active TCI state corresponding to the PDCCH. The index of the RS is included in set q0, where set q0 represents the set of BFD-RS. In implementation, the UE expects a single-port RS in set q0. Additionally, the TCI state may contain two RSs; in this case, the RS corresponding to QCL type D is taken as the BFD-RS. Furthermore, the BFD-RS set is updated as the PDCCH TCI state is updated.

[0061] 2. Determination of new candidate beams (i.e., determination of NBI-RS)

[0062] The physical layer measures the reference signal of each candidate beam to find new candidate beams. The maximum number of candidate beams is usually 16 (i.e., maxNrofCandidateBeams = 16). The reference signal of all candidate beams is represented as set q1 below.

[0063] In the primary cell (PCell) or secondary cell (PSCell), the reference signal in Set q1 is associated with the PRACH resource, which can be considered as the beam being associated with the PRACH resource. When a new candidate beam reference signal (q-new) is selected (i.e., a new candidate beam is determined), the UE will perform BFRQ on the PRACH resource corresponding to q-new. For the secondary cell (SCell), NBI-RS must be configured by the network-side equipment.

[0064] The reference signal may be any of the following:

[0065] Periodic CSI-RS (P-CSI-RS), SSB, and SBB+CSI-RS.

[0066] When the UE physical layer is searching for a new candidate beam, it will report the measurement results that meet the preset conditions (i.e., the reference signal received power (L1-RSRP) of the lower layer is greater than the RSRP threshold value (rsrp-ThresholdSSB) of the configured SSB) to the higher layer of the UE. The reporting format (such as reporting: CSI-RS Resource Indicator (CRI) / SSB Resource Indicator (SSBRI), or L1-RSRP) is the same as that of beam reporting.

[0067] In some embodiments, for PCell or PSCell, the physical layer reports the CSI-RS / SSB indice and L1-RSRP value that are greater than the threshold to the higher layer;

[0068] In other embodiments, for Scell, the physical layer first indicates to the higher layer whether there is an RS that satisfies the L1-RSRP threshold. If it does, the physical layer reports the RS index that satisfies the threshold condition and its measured L1-RSRP value to the higher layer.

[0069] In this way, the UE higher layers select a new candidate beam NBI based on the report from the physical layer.

[0070] It should be noted that the configuration of the L1-RSRP threshold is divided into the following two cases:

[0071] Scenario 1: For SSB, configure the higher-level parameter rsrp-ThresholdSSB via RRC;

[0072] Scenario 2: For CSI-RS, RRC does not directly configure the threshold, but implicitly derives the L1-RSRP threshold of CSI-RS by configuring the power difference (powerControlOffsetSS) between CSI-RS and SSB.

[0073] 3.BFRQ

[0074] The MAC layer determines the PRACH channel for BFRQ based on the selected new beam, and this PRACH channel is a channel that has been configured by the network-side equipment.

[0075] 4. Beam recovery

[0076] For PCell or PSCell, the configured candidate beam RS is associated with PRACH resources. When one of the RSs is selected as a new candidate beam (hereinafter referred to as q_new), the UE will send the corresponding preamble on the RACH time-frequency resource (i.e., RO, hereinafter assumed to be the nth time slot) associated with q_new. In the (n+4)th time slot, the UE will use the beam receiving q_new to start detecting PDCCH scrambled with Cell Radio Network Temporary Identifier (C-RNTI) / Modulcation Coding Scheme Cell Radio Network Temporary Identifier (MCS-C-RNTI) in the Search Space BFR and its associated CORESET. The detection window length is configured by the RRC parameter: beamFailureRecoveryTimer, and the Search Space BFR is configured by the higher layer parameter: recoverySearchSpaceId.

[0077] For the received PDCCH and the corresponding Physical downlink shared channel (PDSCH), the UE will use QCL Type A in the TCI state with QCL Type D and q_new for PDCCH / PDSCH estimation and decoding, based on historical records or the configured tci-StatesPDCCH-ToAddList. This process continues until the MAC CE activates a new TCI state or the RRC configures an add TCI states list (tci-StatesPDCCH-ToAddList) to add a new TCI state. In this case, the UE will use the new TCI state for PDCCH / PDSCH reception and decoding. Specifically, the UE will search for the TCI state with QCL Type D and q_new quasi-co-located in tci-StatesPDCCH-ToAddList based on q_new as the new TCI state for PDCCH / PDSCH reception and decoding.

[0078] It should be noted that TCI defines multiple pairs of reference signals for QCL indication, describes the reference signals that can be used as QCL sources and the characteristics shared by the source and target signals, that is, QCL information is transmitted by configuring the TCI state.

[0079] During downlink transmission, the source reference signals that can be used for Tx beam indication include:

[0080] SS / PBCH block, wherein the Rx beam used to receive the SS / PBCH block can be used to receive downlink transmission data;

[0081] CSI-RS for beam management;

[0082] CSI-RS used for CSI acquisition;

[0083] CSI-RS (Tracking Reference Signal, TRS) used for tracking.

[0084] During uplink transmission, the source reference signals that can be used for Tx beam indication include:

[0085] SS / PBCH block, wherein the Rx beam used to receive the SS / PBCH block can be used as the Tx beam for transmitting uplink data;

[0086] CSI-RS for beam management;

[0087] The Rx beam used to receive certain CSI-RS resources can be used as the Tx beam to transmit uplink data.

[0088] CSI-RS used for CSI acquisition;

[0089] The Sounding Reference Signal (SRS) is used to transmit certain SRS resources, and the Tx beam used for transmitting certain SRS resources can also be used as the Tx beam for uplink data transmission.

[0090] By definition, QCL refers to the ability of the channel characteristics transmitted by one port symbol to be inferred from the channel characteristics transmitted by another port symbol. Strictly speaking, QCL refers to the correlation between reference signals for UE reception, but in practical applications, the base station can only guarantee that reference signals transmitted by the same TRP have similar characteristics.

[0091] In LTE, the channel feature classification defined by the QCL rules can include: Type A and Type B.

[0092] Type A indicates that the antenna ports for transmitting Common Reference Signal (CRS), CSI-RS, and DM-RS have the same delay spread, Doppler spread, Doppler shift, and average delay characteristics.

[0093] Type B indicates that the antenna ports for transmitting CSI-RS and DM-RS have the same delay spread, Doppler spread, Doppler shift, and average delay characteristics.

[0094] In NR, the QCL rule (transmission of any reference signal from any TRP) defines the same channel characteristic classification, including: Type A, Type B, Type C, and Type D.

[0095] Type A represents: delay spread, Doppler spread, Doppler frequency shift, and average delay.

[0096] Type B indicates: Doppler spread, Doppler shift.

[0097] It should be noted that for frequency bands below 6GHz, Type B has the following characteristics:

[0098] Scenario 1: The target reference signal is a narrow beam, and the source reference signal is a wide beam.

[0099] In this scenario, signals originating from the same station are generally considered to have consistent Doppler parameters (Type B). However, the scatterers covered by beams of different widths differ, significantly impacting the time delay spread and average time delay parameters experienced during signal propagation. Therefore, these two reference signals cannot form a QCL relationship in terms of both time delay spread and average time delay. For example, TRS uses a wide sector beam, while CSI-RS may generate a narrow beam through beamforming.

[0100] Scenario 2: The time-domain density of the target reference signal is insufficient, but the frequency-domain density is sufficient.

[0101] In this case, relying on the target reference signal itself may not be sufficient to accurately estimate the time-varying parameters of the channel, so the Doppler parameters can be provided by the source reference signal; however, since the frequency domain density is sufficient, the source reference signal itself can estimate frequency domain parameters such as average delay and delay spread, such as CSI-RS and TRS.

[0102] Type C stands for Doppler frequency shift and average time delay. For frequency bands above 6 GHz, and when the synchronization signal block (SSB) is the source RS, due to the limited resources and density occupied by the SSB, it can only obtain the relevant parameter estimates of Type C, and the rest can be obtained by the target RS through measurement.

[0103] Type D indicates: Spatial Rx parameter.

[0104] It should be noted that Type A, Type B, and Type C are applicable to any carrier frequency domain, while Type D is only applicable to high-frequency bands. This means that omnidirectional antennas cannot be used; it can only be used for beamforming-generated beams for transmission, such as FR2. Furthermore, the NR QCL rules for Type A, Type B, and Type C are similar to the LTE QCL rules. That is, if both reference signals belong to Type B, their Doppler spread and Doppler shift characteristics are the same. Type D, however, is applicable to high-frequency bands and requires both the base station and the UE to transmit using beamforming-generated beams. Therefore, when the base station changes the Tx beam due to mobility or other reasons, it needs to inform the UE of the characteristic parameters of the Rx beam applicable to the new Tx beam, thus ensuring that the UE can select a suitable Rx beam based on these parameters. For Type D, assuming that reference signal A and reference signal B are spatially co-located, this means that the UE can use the same Rx beam when receiving these two reference signals.

[0105] In implementation, all reference signals except SS / PBCH require valid TCI indication. In FR1, a TCI state contains only one reference signal and can only provide large-scale channel characteristics for Type A, B, and C; in FR2, a TCI state contains two reference signals, the first of which provides a reference signal for Type A, B, and C, and the second provides a reference signal for Type D.

[0106] The TCI framework can assist in the reception of CSI-RS for CSI acquisition, CSI-RS for beam management, dedicated demodulation reference signals (DM-RS) for PDCCH demodulation, and DM-RS for PDSCH demodulation. However, for a given reference signal, not all other reference signals can be used as its source signal; only certain specific reference signals can be used as source signals, which are included in the TCI state to transmit QCL information.

[0107] For example, in the following communication protocol configuration, referenceSignal represents a reference signal (such as CSI-RS and / or SSB) that can be used to measure the beam. The performance parameters of this reference signal, such as TCI state identifier, QCL type, serving cell identifier, etc., can be configured through the following protocols.

[0108]

[0109]

[0110] In summary, with the application of narrower beams, the total number of beams will increase dramatically, resulting in a sharp increase in the number of TCI states required to indicate the reference signals corresponding to each beam. Consequently, the probability of network-side equipment reconfiguring TCI states will also increase. In related technologies, reconfiguring TCI states via RRC will cause a longer delay, which will reduce the communication performance of the communication system.

[0111] In this embodiment, the terminal determines the target reference signal based on the TCI state pool / group and / or TCI state indicated in the indication signaling sent by the network-side device, and detects the target reference signal. Compared with the RRC reconfiguration of TCI state in related technologies, the reconfiguration method of TCI state has a shorter latency, thereby reducing the impact of latency in the TCI state reconfiguration process on the communication system, thus improving the communication performance of the communication system.

[0112] The following description, in conjunction with the accompanying drawings, details the method, apparatus, terminal, and network-side device for detecting and configuring reference signals provided in this application, through some embodiments and application scenarios.

[0113] Please see Figure 5 This application provides a method for detecting a reference signal, the execution subject of which can be a terminal, such as... Figure 5 As shown, the method for detecting the reference signal may include the following steps:

[0114] Step 501: The terminal receives an indication signaling message, which carries first identification information and / or second identification information, wherein the first identification information is used to identify the Transmission Configuration Indication (TCI) state pool / group, and the second identification information is used to identify the target TCI state in the TCI state pool / group.

[0115] In implementation, the TCI state pool / group may include at least one TCI state, and the TCI states in different TCI state pools / groups may be different from each other, or different TCI state pools / groups may include at least partially identical TCI states. For example: Figure 6 As shown, assume that the network-side device divides the TCI state into n TCI state pools. Pool 0 includes 5 TCI states: TCI 0 to 4. Pool 1 may also include TCI 5, and pool 1 may also include other TCI states different from those in pool 0: TCI 5 to 9.

[0116] It should be noted that the TCI state pool / group identified by the first identification information can be understood as: the TCI state pool / group activated by the network-side device. For example, the network-side device may activate only some of the n TCI pools, while the other TCI pools are not activated. In this case, the network-side device informs the terminal through the first identification information in the indication signaling which TCI pools are active, thereby enabling the terminal to measure the RS corresponding to the TCIstate in the active TCI pool according to the instruction of the network-side device.

[0117] Furthermore, different TCI state pools / groups may contain different numbers of TCI states, and the number of TCI states contained in each TCI state pool / group may be configured by the network-side device. For example, the first identification information corresponding to each TCI state pool / group may be configured by the network-side RRC, and the number and content of TCI states contained in each TCI state pool / group may be reconfigured by the RRC or dynamically adjusted by the MAC control unit (Control Element, CE). This will not be elaborated further here.

[0118] In some embodiments, a TCI state in a TCI state pool / group can correspond to the same type D RS, for example: Figure 7 As shown, assume that the network-side device is configured (activated) with two TCI state groups. In TCI state group 1, RS 0, RS 1, RS 2, RS 3, and RS 4 are corresponding to these five RSs, and the type D RS corresponding to these five RSs is Source#0. In TCI state group 2, RS 4, RS 5, RS 8, and RS 9 are corresponding to these four RSs, and the type D RS corresponding to these four RSs is Source#1.

[0119] If a wide beam (assuming the corresponding type D RS is CSI-RS 1) has a coverage angle of 60° and a narrow beam has a coverage angle of 20°, and the wide beam covers 3 narrow beams (assuming the corresponding RSs are SSB 1, SSB 2 and SSB 3), then a TCI state pool / group can include 3 TCI states that correspond one-to-one with SSB 1, SSB 2 and SSB 3 respectively.

[0120] In other embodiments, a TCI state in a TCI state pool / group may also correspond to different type DRS (reference RS).

[0121] Typically, if a TCI state in a TCI state pool / group corresponds to different type D RSs, then the different type D RSs corresponding to the TCI states in that TCI state pool / group are interconnected or adjacent. Interconnection of different type D RSs can occur if the coverage area of ​​one type D RS includes the coverage area of ​​another type D RS, or if different type D RSs are associated with the same RS. For example, if a wide beam has a coverage angle of 60° and a narrow beam has a coverage angle of 20°, and the wide beam can cover three narrow beams, then a TCI state pool / group can include the TCI state of the reference signal carried by the wide beam, and the TCI states of the reference signals carried by the narrow beams covered by the wide beam.

[0122] Furthermore, the instruction signaling carries first identification information and / or second identification information, which can be understood as:

[0123] Scenario 1: When the network-side device sends an indication signaling message to the terminal for the first time, the indication signaling message may carry first identification information and second identification information, so that the terminal can determine the active target TCI state pool / group identified by the first identification information, and can also determine the target TCI state in the target TCI state pool / group according to the second identification information.

[0124] Scenario 2: When the network-side device sends an indication signaling message to the terminal for the nth time (n is an integer greater than or equal to 1), the indication signaling message may carry the first identification information, or the second identification information, or the first identification information and the second identification information.

[0125] Example 1: When the active TCI state pool / group configured by the network-side device is switched, the indication signaling may carry first identification information and second identification information. The first identification information is used to identify the switched TCI state pool / group, and the second identification information is used to identify the target TCI state in the switched TCI state pool / group.

[0126] Example 2: When the active TCI state pool / group configured on the network side device has not been switched, but the TCI state in the TCI state pool / group changes, the indication signaling can carry the second identification information. At this time, the terminal can determine the target TCI state pool / group based on the previously received indication signaling carrying the first identification information, and determine the target TCI state in the target TCI state pool / group based on the second identification information carried in the currently received indication signaling.

[0127] Of course, when the network-side device sends an indication signaling message to the terminal for the nth time, there may be a situation where the indication signaling message only carries the first identification information. In this case, the terminal can detect the reference signals corresponding to all TCI states in the target TCI state pool / group identified by the first identification information. For example, the network-side device may configure the target TCI state pool / group to contain only one or at least two TCI states corresponding to the reference signals that the terminal needs to detect.

[0128] In addition, when the instruction signaling only carries the second identification information, the terminal may obtain the first identification information in other ways besides obtaining the first identification information in the previously received instruction signaling, such as by determining the first identification information through a method agreed upon in advance by the protocol, or by using the terminal's default method.

[0129] It is worth noting that the second identification information in this application embodiment only needs to be able to distinguish each TCI state in the TCI state pool / group corresponding to the first identification information, and the number of bits required is less than the proportion of bits required by the TCI identifier used to indicate each TCI state in related technologies.

[0130] In this embodiment, when the terminal receives the indication signaling for the nth time, it can receive only the indication signaling carrying the first identification information or the second identification information. Compared with the related technologies, which require RRC configuration to correspond one-to-one with the indication information of each TCI stas, this can reduce the resource consumption of the terminal and network-side equipment. For example, assuming the total number of TCI stas is 128, the related technologies require 7 bits of indication information to indicate a certain TCI stas. However, in this embodiment, 3 bits of the first identification information can be used to distinguish each TCI stas pool / group, and 4 bits of the second identification information can be used to distinguish each TCI stas in the TCI stas pool / group. In this way, when the indication signaling only contains the second identification information, it only needs to consume 4 bits of transmission resources to indicate the specified TCI stas.

[0131] Step 502: The terminal detects the target reference signal based on the first identification information and / or the second identification information.

[0132] In some embodiments, the terminal detecting the target reference signal can be understood as the terminal detecting BFD-RS and / or NBI-RS. That is, the target reference signal may include a beam recovery failure reference signal (BFD-RS), or a new beam identification reference signal (NBI-RS), or both BFD-RS and NBI-RS, wherein the number of NBI-RS may be greater than or equal to 1.

[0133] In implementation, the BFD-RS and the NBI-RS can be configured by the network-side device in the same active TCI state pool / group, and the first identification information of the TCI state pool / group, and / or the second identification information of the TCI state corresponding to at least one of the BFD-RS and the NBI-RS can be informed to the terminal through indication signaling. In this way, the terminal can determine the BFD-RS and / or the NBI-RS according to the first identification information and / or the second identification information carried in the received indication signaling, and perform corresponding detection on the BFD-RS and / or the NBI-RS.

[0134] Optionally, the network-side device can include the TCI states corresponding to the BFD-RS and NBI-RS that the terminal needs to detect in the configured (i.e., activated) TCI state pool / group. For example, the target TCI state pool / group includes a TCI state corresponding to one BFD-RS and three TCI states corresponding to three NBI-RSs. In this case, the indication signaling can carry the first identification information of the target TCI state pool / group and the second identification information of the TCI state corresponding to the BFD-RS. The terminal can determine the target TCI state pool / group based on the first identification information and determine the BFD-RS based on the second identification information. Furthermore, the terminal can also use the reference signals corresponding to other TCI states in the target TCI state pool / group as the NBI-RS.

[0135] Of course, the indication signaling may also include the second identification information of the TCI state corresponding to each NBI-RS, and the NBI-RS and the BFD-RS may be located in different TCI state pools / groups. For example, assuming that the network-side device is configured (i.e. activated) two TCI state pools / groups, the BFD-RS may be located in one of the TCI state pools / groups, while the NBI-RS may be located in the other TCI state pool / group.

[0136] In practice, the terminal can determine whether the target reference signal belongs to BFD-RS or NBI-RS based on the configuration parameters of the target reference signal, and then perform corresponding detection. This will not be elaborated on here.

[0137] In other words, the terminal detecting the target reference signal based on the first identification information and / or the second identification information may include:

[0138] The terminal determines the BFD-RS based on the first identification information and / or the second identification information, and detects the BFD-RS; and / or,

[0139] The terminal determines the NBI-RS based on the first identification information and / or the second identification information, and detects the NBI-RS.

[0140] Similar to step 501, when the terminal receives the instruction signaling for the first time, the terminal determines the BFD-RS and / or NBI-RS based on the first identification information and the second identification information; when the terminal receives the instruction signaling for the nth time, the terminal determines the BFD-RS and / or NBI-RS based on the first identification information and the second identification information, or the terminal determines the BFD-RS and / or NBI-RS based on the first identification information in the currently received instruction signaling, or the terminal determines the BFD-RS and / or NBI-RS based on the second identification information in the currently received instruction signaling and the first identification information in the historical instruction signaling, wherein the historical instruction signaling represents the instruction signaling carrying the first identification information most recently received by the terminal.

[0141] Specifically, the terminal performs fault detection on the BFD-RS to determine whether a beam failure event has occurred based on the detection results; and / or,

[0142] The terminal performs new candidate beam detection on the NBI-RS to determine whether there is an NBI-RS that meets the performance requirements. Furthermore, in the event of a beam failure, the terminal can report the identification information of an NBI-RS that meets the performance requirements, or report an indication that no NBI-RS meeting the performance requirements has been detected.

[0143] Optionally, the performance requirements include at least one of the following:

[0144] The reference signal received power (RSRP) is greater than or equal to the RSRP threshold.

[0145] The signal-to-noise and interference ratio (SINR) is greater than or equal to the SINR threshold.

[0146] The block error rate (BLER) is less than or equal to the BLER threshold.

[0147] The signal-to-noise ratio (SNR) is greater than or equal to the SNR threshold.

[0148] In implementation, the aforementioned RSRP threshold and / or SINR threshold and / or BLER threshold and / or SNR threshold can be predefined in the communication protocol. Of course, the aforementioned RSRP threshold and / or SINR threshold and / or BLER threshold and / or SNR threshold can also be determined by the terminal based on its own performance parameters. For example, the more powerful the terminal, the larger the BLER threshold can be, and no specific limitation is made here.

[0149] It is worth noting that in related technologies, after the RRC reconfigures the TCI state, the UE needs to decode the new TCI state. However, in this embodiment, the network-side device can reduce the probability of the terminal decoding the new TCI state by configuring the BFD-RS and the NBI-RS in the same active TCI state pool / group, thereby reducing the terminal's overhead.

[0150] As an optional implementation, the indication signaling may be DCI signaling or MAC CE signaling.

[0151] Taking DCI signaling as an example, the DCI signaling can carry first identification information and / or second identification information using newly added indication fields, or it can carry first identification information and / or second identification information using available bits in existing indication fields in the DCI signaling.

[0152] In this embodiment, the active TCI state pool / group can be switched via DCI signaling, meaning the active TCI state pool / group changes. In this case, the DCI signaling can carry first identification information and second identification information. Alternatively, at least some TCI states in the active TCI state pool / group can be updated via DCI signaling, meaning the active TCI state pool / group remains unchanged, but the content of the TCI state within the active TCI state pool / group changes. In this case, the DCI signaling can carry second identification information.

[0153] For MAC CE signaling, the method of carrying the first identification information and / or the second identification information through MAC CE signaling is similar to the method of carrying the first identification information and / or the second identification information through DCI signaling as described above, and will not be repeated here.

[0154] For example: Figure 8 As shown, the network side updates some TCI state information in the TCI state pool (Pool 0) from TCI 0 to 3 to TCI 5 to 9 through MAC CE.

[0155] In this embodiment, since the DCI signaling belongs to the physical layer, its configuration and transmission latency is shorter than that of the RRC higher-layer signaling. Therefore, configuring the TCI state through DCI signaling can shorten the latency during the TCI state reconfiguration process. Similarly, using the MAC CE signaling of the MAC layer to configure the TCI state can also reduce the latency during the TCI state reconfiguration process compared to reconfiguring the TCI state through the RRC higher-layer signaling.

[0156] As an optional implementation, the indication signaling includes any of the following:

[0157] A first signaling message carrying single-layer information, wherein the single-layer information includes the first identification information and / or the second identification information;

[0158] A second signaling carrying first-layer information and / or second-layer information, wherein the first-layer information includes the first identification information and the second-layer information includes the second identification information;

[0159] The combined signaling includes a first sub-signaling and / or a second sub-signaling, wherein the first sub-signaling carries the first identification information and the second sub-signaling carries the second identification information.

[0160] Implementation Method 1

[0161] In an implementation where the indication signaling includes a first signaling carrying single-layer information, the first identification information and / or the second identification information are single-layer information carried in the first signaling. In this way, the terminal can determine the target TCI state pool / group based on the single-layer information, or it can also determine the target TCI state in the target TCI state pool / group, thereby determining BFD-RS and / or NBI-RS accordingly.

[0162] Optionally, when the indication signaling includes a first signaling, the terminal determines the BFD-RS and / or the NBI-RS based on the first identification information and / or the second identification information, including:

[0163] The terminal determines the target TCI state pool / group based on the first identification information carried by the first signaling, and determines the reference signal corresponding to the target TCI state in the target TCI state pool / group as the BFD-RS and / or the NBI-RS based on the second identification information carried by the first signaling.

[0164] Of course, in practice, network-side devices can configure single-layer information in the first signaling to carry first identification information or second identification information, without making specific limitations here.

[0165] Implementation Method 2

[0166] In an implementation of the instruction signaling that includes a second signaling carrying first-layer information and / or second-layer information, the first identification information and the second identification information are located at different layers of the second signaling, and the second signaling may carry only first-layer information, or only second-layer information, or both first-layer information and second-layer information.

[0167] Optionally, when the indication signaling includes a second signaling, the terminal determines the BFD-RS and / or the NBI-RS based on the first identification information and / or the second identification information, including at least one of the following:

[0168] If the second signaling carries first-layer information and second-layer information, the terminal determines the target TCI state pool / group based on the first-layer information, and determines the reference signal corresponding to the target TCI state in the target TCI state pool / group as the BFD-RS and / or the NBI-RS based on the second-layer information;

[0169] If the second signaling only carries the second layer information, the terminal determines the target TCI state pool / group based on the first layer information in the historical second signaling, and determines the reference signal corresponding to the target TCI state in the target TCI state pool / group as the BFD-RS and / or the NBI-RS based on the second layer information.

[0170] The aforementioned historical second signaling can be understood as the second signaling that the terminal most recently received, carrying the first layer information. In other words, if the active TCI state pool / group configured by the network-side device remains unchanged, the network-side device only carries both the first and second identification information in the first instruction signaling it sends. In subsequent instruction signaling, it can carry only the second identification information, thereby reducing the transmission resources required to transmit the instruction signaling.

[0171] Of course, the second signaling may also carry only the first layer information. For example, the network-side device may pre-update the TCI state in the target TCI state pool / group indicated by the first layer information so that the updated TCI state in the target TCI state pool / group can be used to indicate the BFD-RS and / or the NBI-RS. No specific limitation is made here.

[0172] Implementation Method 3

[0173] In an implementation where the indication signaling includes a combination of a first sub-signaling and / or a second sub-signaling, the first sub-signaling and the second identification information are carried by different sub-signalings. In practice, the terminal may receive only the first sub-signaling and not the second sub-signaling, or the terminal may receive only the second sub-signaling and not the first sub-signaling, or the terminal may receive both the first and second sub-signalings.

[0174] Optionally, when the indication signaling includes combined signaling, the terminal determines the BFD-RS and / or the NBI-RS based on the first identification information and / or the second identification information, including at least one of the following:

[0175] If the combined signaling includes a first sub-signaling and a second sub-signaling, the terminal determines the target TCI state pool / group according to the first sub-signaling, and determines the reference signal corresponding to the target TCI state in the target TCI state pool / group as the BFD-RS and / or the NBI-RS according to the second sub-signaling.

[0176] If the combined signaling only includes the second sub-signaling, the terminal determines the target TCI state pool / group based on the historical first sub-signaling, and determines the reference signal corresponding to the target TCI state in the target TCI state pool / group as the BFD-RS and / or the NBI-RS based on the second sub-signaling.

[0177] The aforementioned historical first sub-signaling can be understood as the first sub-signaling carrying the first layer information most recently received by the terminal. In other words, if the active TCI state pool / group configured by the network-side device remains unchanged, the network-side device only sends the first and second sub-signalings simultaneously when first instructing the BFD-RS and / or the NBI-RS. In subsequent instruction signalings, only the second sub-signaling can be sent, thereby reducing the transmission resources required to transmit the instruction signaling.

[0178] Of course, the combined signaling may also include only the first sub-signaling. For example, the network-side device may pre-update the TCI state in the target TCI state pool / group indicated by the first sub-signaling so that the updated TCI state in the target TCI state pool / group can be used to indicate the BFD-RS and / or the NBI-RS. No specific limitation is made here.

[0179] Optionally, the method for detecting the reference signal further includes:

[0180] If at least one or all of the NBI-RSs in the target reference signal do not meet the performance requirements corresponding to beam failure recovery related detection, the terminal detects NBI-RSs in another TCI state pool / group where the BFD-RS is located, and if a target NBI-RS that meets the performance requirements is detected, it sends a first indication message to the network-side device, the first indication message indicating that the target NBI-RS meets the performance requirements; or...

[0181] If at least one or all of the NBI-RS in the target reference signal does not meet the performance requirements, the terminal sends a second indication message to the network-side device through the BFD-RS. The second indication message is used to indicate that at least one or all of the NBI-RS in the target reference signal does not meet the performance requirements.

[0182] It should be noted that the aforementioned first or second indication information can be reported to the network-side device when the terminal detects a beam failure event. Furthermore, the first or second indication information can be sent to the network-side device via any uplink signal such as PRACH, PUCCH, or PUSCH.

[0183] In one alternative implementation, different TCI state pools / groups may include the same TCI state, and the BFD-RS configured by the network-side device may be included in at least two active TCI state pools / groups.

[0184] In this way, if the terminal device detects that at least one or all of the NBI-RS in the TCI state pool / group containing the BFD-RS as indicated by the network-side device does not meet the performance requirements, the terminal can independently detect the NBI-RS in another TCI state pool / group containing the BFD-RS, thereby improving the efficiency and probability of the terminal detecting the NBI-RS that meets the performance requirements.

[0185] Furthermore, if the terminal detects an NBI-RS that meets the performance requirements in the other TCI state pool / group, the terminal reports first indication information to the network-side device. At this time, the network-side device can, based on the first indication information, ensure that the target NBI-RS is included in the switched or updated active TCI state pool / group by switching the active TCI state pool / group or updating the TCIs in the active TCI state pool / group. After this, the network-side device configures the BFD-RS and / or NBI-RS within this switched or updated active TCI state pool / group.

[0186] In another optional implementation, if the terminal device detects that at least one or all of the NBI-RS in the TCI state pool / group containing the BFD-RS, as indicated by the network-side device, do not meet the performance requirements, the terminal directly reports a second indication message to the network-side device.

[0187] Correspondingly, the network-side device can reconfigure the TCI state based on the first or second indication information received from the terminal by switching the active TCI state pool / group or updating the TCI in the active TCI state pool / group. It can also send updated indication signaling to the terminal corresponding to the TCI state in the switched or updated active TCI state pool / group and the TCI state contained therein, so that the terminal can detect other reference signals according to the updated indication signaling.

[0188] Optionally, after the terminal sends the first indication information or the second indication information to the network-side device, the method further includes:

[0189] The terminal receives the updated indication signaling at the target time-frequency location;

[0190] The terminal detects the updated target reference signal based on the updated instruction signaling.

[0191] In implementation, the target time-frequency location can be a time period and / or frequency domain location predefined by the protocol, or the target time-frequency location can be a time period and / or frequency domain location reported by the terminal. For example, the uplink signal carrying the first indication information or the second indication information also carries the time period and / or frequency domain location specified by the terminal.

[0192] Furthermore, the meaning of the updated indication signaling is similar to that in step 501, except that if the activated TCI state pool / group has not switched, the updated indication signaling may carry only the second identification information without carrying the first identification information. For example, the updated indication signaling may be a first signaling carrying single-layer information, or a second signaling carrying only second-layer information, or a combined signaling including only the second sub-signaling.

[0193] Correspondingly, the process by which the terminal detects the updated target reference signal according to the updated indication signaling is similar to the process in step 502 where the terminal detects the target reference signal according to the first identification information and / or the second identification information. The only difference is that if the activated TCI state pool / group has not been switched, the terminal detects the target reference signal according to the first identification information obtained in step 501 and the second identification information in the updated indication signaling. This will not be elaborated further here.

[0194] In this embodiment, the terminal receives an indication signaling message carrying first identification information and / or second identification information. The first identification information identifies a Transmission Configuration Indication (TCI) state pool / group, and the second identification information identifies a target TCI state within the TCI state pool / group. The terminal detects a target reference signal based on the first and / or second identification information. Thus, the terminal can detect the reference signal corresponding to a specified TCI state and / or the reference signal corresponding to a specified TCI state in a specified TCI state pool / group based on the received indication signaling message. This allows for the reconfiguration of the TCI state pool / group or TCI state using the indication signaling message. Compared to RRC reconfiguration in related technologies, this method has shorter latency, thereby improving the communication performance of the communication system.

[0195] Please see Figure 9 This application provides a method for configuring reference signals, the execution entity of which can be a network-side device, such as... Figure 9As shown, the method for configuring the reference signal may include the following steps:

[0196] Step 901: The network-side device determines N TCI state pools / groups based on M Transmission Configuration Indicator (TCI) states, where N is an integer greater than or equal to 1 and M is an integer greater than N.

[0197] In practice, M can be less than or equal to the total number of TCI state pools / groups included in each of the N TCI state pools / groups. In other words, different TCI state pools / groups can include the same TCI state.

[0198] In addition, network-side devices can activate one or at least two of N TCI state pools / groups for a specified terminal.

[0199] In practice, network-side devices can switch to the terminal-configured (activated) TCI state pool / group via DCI signaling, or update the TCI state information in the terminal-configured (activated) TCI state pool / group via MAC CE.

[0200] Step 902: The network-side device sends an indication signaling message, wherein the indication signaling message carries first identification information and / or second identification information, wherein the first identification information is used to identify the TCI state pool / group, and the second identification information is used to identify the target TCI state in the TCI state pool / group.

[0201] The meanings of TCI state pool / group, TCI state, indication signaling, first identification information, and second identification information in the embodiments of this application are the same as those in the following examples. Figure 5 The TCI state pool / group, TCI state, indication signaling, first identification information, and second identification information in the method embodiments shown have the same meanings, and will not be repeated here. Furthermore, the method for configuring reference signals provided in this application embodiment is the same as... Figure 5 The method for detecting the reference signal shown corresponds to this one, the only difference being that, as Figure 9 The method for configuring the reference signal shown is a process executed by the network-side device, while... Figure 5 The method embodiment shown involves the terminal performing detection based on a reference signal indicated by the network-side device, and as... Figure 9 The method of configuring the reference signal shown can achieve the same result as... Figure 5 The method for detecting the reference signal shown has similar beneficial effects, which will not be elaborated upon here.

[0202] Optionally, the indication signaling includes downlink control information (DCI) signaling or media access control unit (MAC) signaling.

[0203] Optionally, the indication signaling includes any of the following:

[0204] A first signaling message carrying single-layer information, wherein the single-layer information includes the first identification information and / or the second identification information;

[0205] A second signaling carrying first-layer information and / or second-layer information, wherein the first-layer information includes the first identification information and the second-layer information includes the second identification information;

[0206] The combined signaling includes a first sub-signaling and / or a second sub-signaling, wherein the first sub-signaling carries the first identification information and the second sub-signaling carries the second identification information.

[0207] Optionally, the target reference signal includes at least one of the following:

[0208] Beam recovery failure reference signal BFD-RS;

[0209] New Beam Identifier Reference Signal (NBI-RS)

[0210] Optionally, the method further includes:

[0211] The network-side device receives a first indication information or a second indication information, wherein the first indication information is used to indicate that at least one or all of the NBI-RS in the target reference signal does not meet the performance requirements corresponding to beam failure recovery related detection, and the target NBI-RS in another TCI state pool / group where the BFD-RS is located meets the performance requirements; the second indication information is used to indicate that at least one or all of the NBI-RS in the target reference signal does not meet the performance requirements.

[0212] The network-side device updates the indication signaling according to the first indication information or the second indication information, and sends the updated indication signaling at the target time-frequency location.

[0213] Optionally, the network-side device updates the indication signaling according to the first indication information, including:

[0214] The network-side device switches the activated TCI state pool / group to the TCI state pool / group where the target NBI-RS is located according to the first indication information, and generates updated indication signaling. The updated indication signaling carries first identification information corresponding to the TCI state pool / group where the target NBI-RS is located and second identification information of the TCI state corresponding to the target NBI-RS; or...

[0215] The network-side device updates the TCI state in the activated TCI state pool / group according to the first indication information, so that the updated activated TCI state pool / group includes the target NBI-RS, and generates an updated indication signaling, the updated indication signaling carrying second identification information corresponding to the target NBI-RS.

[0216] It should be noted that, in practice, when the network-side device updates the TCI state in the activated TCI state pool / group according to the first indication information, the updated indication signaling may also carry the first identification information corresponding to the TCI state pool / group where the target NBI-RS is located, which is not specifically limited here.

[0217] Optionally, the performance requirements include at least one of the following:

[0218] The reference signal received power (RSRP) is greater than or equal to the RSRP threshold.

[0219] The signal-to-interference-plus-noise ratio (SINR) is greater than or equal to the SINR threshold.

[0220] Block error rate (BLER) is less than or equal to the BLER threshold;

[0221] The signal-to-noise ratio (SNR) is greater than or equal to the SNR threshold.

[0222] To facilitate understanding of the methods for detecting and configuring reference signals provided in the embodiments of this application, the following three embodiments are used as examples to illustrate the methods for detecting and configuring reference signals provided in the embodiments of this application:

[0223] Example 1

[0224] like Figure 6 and Figure 7As shown, assume the base station currently configures (activates) two TCI state groups for the UE. TCI state group 1 includes 5 TCI states corresponding to RS 0 through 4, with the type D RS corresponding to these 5 RSs being Source#0. TCI state group 2 includes 4 TCI states corresponding to RS 4 through 9, with the type D RS corresponding to these 4 RSs being Source#1. At this time, the UE receives an indication signaling from the base station, indicating that the current BFD-RS is RS4 in TCI state group 1, and performs NBI-RS detection on RS 0 through 3. If the UE moves from the coverage area of ​​RS 4 to the coverage area of ​​RS 5, the detection results of all beams corresponding to NBI-RS in TCI state group 1 will not meet performance requirements, so the UE will detect NBI-RS in TCI state group 2. When the UE detects RS 5 as the best, the UE reports to the network-side device that TCI state group 2 is now the most suitable, and the network-side device then instructs the UE to switch to TCI state group 2 via an updated indication signaling. That is, the first layer information in the second signaling or the first sub-signaling in the combined signaling is updated. The subsequent selection of BFD-RS and NBI-RS is performed in TCI state group 2. Then, the UE re-detects the RS according to the updated indication signaling within a certain period of time.

[0225] Example 2

[0226] like Figure 6 As shown, assume the base station has currently configured (activated) a TCI state group for the UE. TCI state group 1 includes five TCI states corresponding to RS 0 through 4, and the type D RS corresponding to these five RSs is Source#0. At this time, the UE receives an indication signaling from the base station indicating that the current BFD-RS is RS 4, and performs NBI-RS detection on RS 0 through 3. If all or at least one of RS 0 through 3 is found to be non-compliant with performance requirements, the UE reports a second indication information to the network-side device via BFD-RS (i.e., RS4) (this can be reported via uplink signals such as PRACH, PUCCH, or PUSCH). Based on the second indication information reported by the UE, the network-side device switches the TCI state group configured for the UE to the corresponding TCI state group via DCI signaling. Subsequently, the UE re-detects RS within a certain time period according to the updated indication signaling (i.e., the aforementioned DCI signaling used to switch TCI state groups).

[0227] In this embodiment, the UE preferably reports the second indication information to the network-side device when none of RS 0 to 3 meet the performance requirements.

[0228] Example 3

[0229] like Figure 6 and Figure 8 As shown, assume the base station has configured (activated) a TCI state group for the UE. TCI state group 1 includes five TCI states corresponding to RS 0 through 4, and the type D RS corresponding to these five RSs is Source#0. At this time, the UE receives an indication signaling from the base station indicating that the current BFD-RS is RS 4, and performs NBI-RS detection on RS 0 through 3. If all or at least one of RS 0 through 3 is found to be non-compliant with performance requirements, the UE reports a second indication information to the network-side device via BFD-RS (i.e., RS 4) (this can be reported via uplink signals such as PRACH, PUCCH, or PUSCH). Based on the received second indication information from the UE, the network-side device updates the TCI state information in the activated TCI state group via MAC CE, for example: Figure 8 As shown, the network side updates some TCI state information in the TCI state pool (Pool 0) from TCI 0 to 3 to TCI 5 to 9 via MAC CE. Subsequently, the UE re-detects the RS within a certain period of time according to the updated indication signaling (i.e., MAC CE signaling used to update the TCI state information in the active TCI state group).

[0230] In this embodiment, the UE preferably reports the second indication information to the network-side device when at least one of RS 0 to 3 fails to meet the performance requirements.

[0231] The method for detecting a reference signal provided in this application can be executed by a device for detecting a reference signal. This application uses an example of a device for detecting a reference signal executing the method for detecting a reference signal to illustrate the device for detecting a reference signal provided in this application.

[0232] Please see Figure 10 The device for detecting reference signals provided in this application embodiment can be applied to terminals, such as... Figure 10 As shown, the device 1000 for detecting the reference signal may include the following modules:

[0233] The first receiving module 1001 is used to receive indication signaling, the indication signaling carrying first identification information and / or second identification information, wherein the first identification information is used to identify the Transmission Configuration Indication TCI state pool / group, and the second identification information is used to identify the target TCI state in the TCI state pool / group;

[0234] The first detection module 1002 is used to detect the target reference signal based on the first identification information and / or the second identification information.

[0235] Optionally, the indication signaling includes downlink control information (DCI) signaling or media access control unit (MAC) signaling.

[0236] Optionally, the indication signaling includes any of the following:

[0237] A first signaling message carrying single-layer information, wherein the single-layer information includes the first identification information and / or the second identification information;

[0238] A second signaling carrying first-layer information and / or second-layer information, wherein the first-layer information includes the first identification information and the second-layer information includes the second identification information;

[0239] The combined signaling includes a first sub-signaling and / or a second sub-signaling, wherein the first sub-signaling carries the first identification information and the second sub-signaling carries the second identification information.

[0240] Optionally, the target reference signal includes at least one of the following:

[0241] Beam recovery failure reference signal BFD-RS;

[0242] New Beam Identifier Reference Signal (NBI-RS)

[0243] Optionally, the first detection module 1002 includes:

[0244] A first detection unit is configured to determine the BFD-RS based on the first identification information and / or the second identification information, and to detect the BFD-RS; and / or,

[0245] The second detection unit is used to determine the NBI-RS based on the first identification information and / or the second identification information, and to detect the NBI-RS.

[0246] Optionally, if the indication signaling includes a first signaling, the first detection module 1002 includes:

[0247] The first determining subunit is configured to determine the target TCI state pool / group based on the first identification information carried by the first signaling, and to determine the reference signal corresponding to the target TCI state in the target TCI state pool / group as the BFD-RS and / or the NBI-RS based on the second identification information carried by the first signaling.

[0248] Optionally, when the indication signaling includes a second signaling, the first detection module 1002 includes at least one of the following:

[0249] The second determining subunit is configured to, if the second signaling carries first-layer information and second-layer information, determine the target TCI state pool / group based on the first-layer information, and determine the reference signal corresponding to the target TCI state in the target TCI state pool / group as the BFD-RS and / or the NBI-RS based on the second-layer information;

[0250] The third determining subunit is used to determine the target TCI state pool / group based on the first layer information in the historical second signaling if the second signaling only carries the second layer information, and to determine the reference signal corresponding to the target TCI state in the target TCI state pool / group as the BFD-RS and / or the NBI-RS based on the second layer information.

[0251] Optionally, when the indication signaling includes combined signaling, the first detection module 1002 includes at least one of the following:

[0252] The fourth determining subunit is used to determine the target TCI state pool / group according to the first sub-signaling if the combined signaling includes the first sub-signaling and the second sub-signaling, and to determine the reference signal corresponding to the target TCI state in the target TCI state pool / group as the BFD-RS and / or the NBI-RS according to the second sub-signaling;

[0253] The fifth determining subunit is used to determine the target TCI state pool / group based on the historical first sub-signaling if the combined signaling only includes the second sub-signaling, and to determine the reference signal corresponding to the target TCI state in the target TCI state pool / group as the BFD-RS and / or the NBI-RS based on the second sub-signaling.

[0254] Optionally, the device 1000 for detecting the reference signal further includes:

[0255] The second detection module is used to detect NBI-RS in another TCI state pool / group where the BFD-RS is located when at least one or all of the NBI-RS in the target reference signal does not meet the performance requirements corresponding to beam failure recovery related detection.

[0256] A first sending module is configured to send a first indication information to a network-side device when a target NBI-RS that meets the performance requirements is detected, wherein the first indication information indicates that the target NBI-RS meets the performance requirements;

[0257] or,

[0258] The device 1000 for detecting the reference signal also includes:

[0259] The second transmitting module is configured to transmit second indication information to the network-side device via the BFD-RS when at least one or all of the NBI-RS in the target reference signal does not meet the performance requirements. The second indication information is used to indicate that at least one or all of the NBI-RS in the target reference signal does not meet the performance requirements.

[0260] Optionally, the device 1000 for detecting the reference signal further includes:

[0261] The second receiving module is used to receive the updated indication signaling at the target time-frequency location;

[0262] The third detection module is used to detect the updated target reference signal according to the updated instruction signaling.

[0263] Optionally, the performance requirements include at least one of the following:

[0264] The reference signal received power (RSRP) is greater than or equal to the RSRP threshold.

[0265] The signal-to-interference-plus-noise ratio (SINR) is greater than or equal to the SINR threshold.

[0266] Block error rate (BLER) is less than or equal to the BLER threshold;

[0267] The signal-to-noise ratio (SNR) is greater than or equal to the SNR threshold.

[0268] The device 1000 for detecting the reference signal in this embodiment can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or other devices besides a terminal. For example, the terminal can include, but is not limited to, the type of terminal 11 listed above; other devices can be servers, network attached storage (NAS), etc., and this embodiment does not specifically limit the type.

[0269] The device 1000 for detecting reference signals provided in this application embodiment can achieve... Figure 5 The various processes implemented on the terminal in the method embodiment shown achieve the same technical effect, and will not be described again here to avoid repetition.

[0270] The method for configuring a reference signal provided in this application can be executed by an apparatus for configuring a reference signal. This application uses an apparatus for configuring a reference signal to execute the method as an example to illustrate the apparatus for configuring a reference signal provided in this application.

[0271] Please see Figure 11The apparatus for configuring reference signals provided in this application embodiment can be applied to network-side devices, which may include, but are not limited to, the types of network-side devices 12 listed above. Figure 11 As shown, the device 1100 for configuring the reference signal may include the following modules:

[0272] The determination module 1101 is used to determine N TCI state pools / groups based on M Transmission Configuration Indication (TCI) states, where N is an integer greater than or equal to 1 and M is an integer greater than N;

[0273] The third sending module 1102 is used to send indication signaling, wherein the indication signaling carries first identification information and / or second identification information, wherein the first identification information is used to identify the TCI state pool / group, and the second identification information is used to identify the target TCI state in the TCI state pool / group.

[0274] Optionally, the indication signaling includes downlink control information (DCI) signaling or media access control unit (MAC) signaling.

[0275] Optionally, the indication signaling includes any of the following:

[0276] A first signaling message carrying single-layer information, wherein the single-layer information includes the first identification information and / or the second identification information;

[0277] A second signaling carrying first-layer information and / or second-layer information, wherein the first-layer information includes the first identification information and the second-layer information includes the second identification information;

[0278] The combined signaling includes a first sub-signaling and / or a second sub-signaling, wherein the first sub-signaling carries the first identification information and the second sub-signaling carries the second identification information.

[0279] Optionally, the target reference signal includes at least one of the following:

[0280] Beam recovery failure reference signal BFD-RS;

[0281] New Beam Identifier Reference Signal (NBI-RS)

[0282] Optionally, the device 1100 for configuring the reference signal further includes:

[0283] The third receiving module is used to receive a first indication information or a second indication information, wherein the first indication information is used to indicate that at least one or all of the NBI-RS in the target reference signal does not meet the performance requirements corresponding to beam failure recovery related detection, and the target NBI-RS in another TCI state pool / group where the BFD-RS is located meets the performance requirements; the second indication information is used to indicate that at least one or all of the NBI-RS in the target reference signal does not meet the performance requirements.

[0284] The update module is used to update the indication signaling according to the first indication information or the second indication information, and send the updated indication signaling at the target time-frequency location.

[0285] Optionally, the update module includes:

[0286] A switching unit is configured to switch the active TCI state pool / group to the TCI state pool / group where the target NBI-RS is located according to the first indication information, and generate updated indication signaling, wherein the updated indication signaling carries first identification information corresponding to the TCI state pool / group where the target NBI-RS is located and second identification information of the TCI state corresponding to the target NBI-RS; or,

[0287] The update unit is configured to update the TCI state in the activated TCI state pool / group according to the first indication information, so that the updated activated TCI state pool / group includes the target NBI-RS, and generate an updated indication signaling, wherein the updated indication signaling carries second identification information corresponding to the target NBI-RS.

[0288] Optionally, the performance requirements include at least one of the following:

[0289] The reference signal received power (RSRP) is greater than or equal to the RSRP threshold.

[0290] The signal-to-interference-plus-noise ratio (SINR) is greater than or equal to the SINR threshold.

[0291] Block error rate (BLER) is less than or equal to the BLER threshold;

[0292] The signal-to-noise ratio (SNR) is greater than or equal to the SNR threshold.

[0293] The device 1100 for configuring reference signals provided in this application embodiment can achieve... Figure 9 The various processes implemented by the network-side device in the method embodiment shown achieve the same technical effect, and will not be described again here to avoid repetition.

[0294] Optional, such as Figure 12As shown in the illustration, this application also provides a communication device 1200, including a processor 1201 and a memory 1202. The memory 1202 stores a program or instructions that can run on the processor 1201. For example, when the communication device 1200 is a terminal, the program or instructions executed by the processor 1201 implement the various steps of the above-described method embodiment for detecting reference signals, and achieve the same technical effect. When the communication device 1200 is a network-side device, the program or instructions executed by the processor 1201 implement the various steps of the above-described method embodiment for configuring reference signals, and achieve the same technical effect. To avoid repetition, these steps will not be repeated here.

[0295] This application embodiment also provides a terminal, including a processor and a communication interface, wherein the communication interface is used to receive indication signaling, the indication signaling carrying first identification information and / or second identification information, wherein the first identification information is used to identify a Transmission Configuration Indication (TCI) state pool / group, and the second identification information is used to identify a target TCI state in the TCI state pool / group; the communication interface is further used to detect a target reference signal based on the first identification information and / or the second identification information. This terminal embodiment corresponds to the above-described terminal-side method embodiment, and all implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Figure 13 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0296] The terminal 1300 includes, but is not limited to, at least some of the following components: radio frequency unit 1301, network module 1302, audio output unit 1303, input unit 1304, sensor 1305, display unit 1306, user input unit 1307, interface unit 1308, memory 1309, and processor 1310.

[0297] Those skilled in the art will understand that the terminal 1300 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 1310 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 13 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0298] It should be understood that, in this embodiment, the input unit 1304 may include a graphics processing unit (GPU) 13041 and a microphone 13042. The GPU 13041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1306 may include a display panel 13061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1307 includes a touch panel 13071 and at least one of other input devices 13072. The touch panel 13071 is also called a touch screen. The touch panel 13071 may include a touch detection device and a touch controller. Other input devices 13072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0299] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 1301 can transmit it to the processor 1310 for processing; in addition, the radio frequency unit 1301 can send uplink data to the network-side device. Typically, the radio frequency unit 1301 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0300] The memory 1309 can be used to store software programs or instructions and various data. The memory 1309 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback function, image playback function, etc.). Furthermore, the memory 1309 may include volatile memory or non-volatile memory, or both. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 1309 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0301] Processor 1310 may include one or more processing units; optionally, processor 1310 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 1310.

[0302] The radio frequency unit 1301 is used to receive indication signaling, the indication signaling carrying first identification information and / or second identification information, wherein the first identification information is used to identify the Transmission Configuration Indication TCI state pool / group, and the second identification information is used to identify the target TCI state in the TCI state pool / group.

[0303] The radio frequency unit 1301 is also used to detect the target reference signal based on the first identification information and / or the second identification information.

[0304] Optionally, the indication signaling includes downlink control information (DCI) signaling or media access control unit (MAC) signaling.

[0305] Optionally, the indication signaling includes any of the following:

[0306] A first signaling message carrying single-layer information, wherein the single-layer information includes the first identification information and / or the second identification information;

[0307] A second signaling carrying first-layer information and / or second-layer information, wherein the first-layer information includes the first identification information and the second-layer information includes the second identification information;

[0308] The combined signaling includes a first sub-signaling and / or a second sub-signaling, wherein the first sub-signaling carries the first identification information and the second sub-signaling carries the second identification information.

[0309] Optionally, the target reference signal includes at least one of the following:

[0310] Beam recovery failure reference signal BFD-RS;

[0311] New Beam Identifier Reference Signal (NBI-RS)

[0312] Optionally, the step of detecting the target reference signal based on the first identification information and / or the second identification information performed by the radio frequency unit 1301 includes:

[0313] Processor 1310 is configured to determine the BFD-RS based on the first identification information and / or the second identification information, and control radio frequency unit 1301 to detect the BFD-RS; and / or,

[0314] The processor 1310 is configured to determine the NBI-RS based on the first identification information and / or the second identification information, and to control the radio frequency unit 1301 to detect the NBI-RS.

[0315] Optionally, when the indication signaling includes the first signaling, the processor 1310's execution of determining the BFD-RS and / or the NBI-RS based on the first identification information and / or the second identification information includes:

[0316] The processor 1310 determines the target TCI state pool / group based on the first identification information carried by the first signaling, and determines the reference signal corresponding to the target TCI state in the target TCI state pool / group as the BFD-RS and / or the NBI-RS based on the second identification information carried by the first signaling.

[0317] Optionally, when the indication signaling includes a second signaling, the process 1310 executing the determination of the BFD-RS and / or the NBI-RS based on the first identification information and / or the second identification information includes at least one of the following:

[0318] If the second signaling carries first-layer information and second-layer information, the processor 1310 determines the target TCI state pool / group based on the first-layer information, and determines the reference signal corresponding to the target TCI state in the target TCI state pool / group as the BFD-RS and / or the NBI-RS based on the second-layer information.

[0319] If the second signaling only carries the second layer information, the processor 1310 determines the target TCI state pool / group based on the first layer information in the historical second signaling, and determines the reference signal corresponding to the target TCI state in the target TCI state pool / group as the BFD-RS and / or the NBI-RS based on the second layer information.

[0320] Optionally, when the indication signaling includes combined signaling, the process 1310 performing the determination of the BFD-RS and / or the NBI-RS based on the first identification information and / or the second identification information includes at least one of the following:

[0321] If the combined signaling includes a first sub-signaling and a second sub-signaling, the processor 1310 determines the target TCI state pool / group according to the first sub-signaling, and determines the reference signal corresponding to the target TCI state in the target TCI state pool / group as the BFD-RS and / or the NBI-RS according to the second sub-signaling.

[0322] If the combined signaling only includes the second sub-signaling, the processor 1310 determines the target TCI state pool / group based on the historical first sub-signaling, and determines the reference signal corresponding to the target TCI state in the target TCI state pool / group as the BFD-RS and / or the NBI-RS based on the second sub-signaling.

[0323] Optionally, the radio frequency unit 1301 is also used for:

[0324] If at least one or all of the NBI-RSs in the target reference signal do not meet the performance requirements corresponding to beam failure recovery related detection, the NBI-RS in another TCI state pool / group where the BFD-RS is located is detected, and if a target NBI-RS that meets the performance requirements is detected, a first indication message is sent to the network-side device, the first indication message indicating that the target NBI-RS meets the performance requirements; or...

[0325] If at least one or all of the NBI-RS in the target reference signal does not meet the performance requirements, a second indication information is sent to the network-side device through the BFD-RS. The second indication information is used to indicate that at least one or all of the NBI-RS in the target reference signal does not meet the performance requirements.

[0326] Optionally, after the radio frequency unit 1301 sends the first indication information or the second indication information to the network-side device, the radio frequency unit 1301 is further configured to:

[0327] Receive the updated indication signaling at the target time-frequency location;

[0328] The updated target reference signal is detected based on the updated instruction signaling.

[0329] Optionally, the performance requirements include at least one of the following:

[0330] The reference signal received power (RSRP) is greater than or equal to the RSRP threshold.

[0331] The signal-to-interference-plus-noise ratio (SINR) is greater than or equal to the SINR threshold.

[0332] Block error rate (BLER) is less than or equal to the BLER threshold;

[0333] The signal-to-noise ratio (SNR) is greater than or equal to the SNR threshold.

[0334] The terminal 1300 provided in this application embodiment can achieve the following: Figure 10 The methods executed by each module shown are all effective and can achieve the same beneficial results. To avoid repetition, they will not be described again here.

[0335] This application embodiment also provides a network-side device, including a processor and a communication interface. The processor is used to determine N TCI state pools / groups based on M Transmission Configuration Indicator (TCI) states, where N is an integer greater than or equal to 1 and M is an integer greater than N. The communication interface is used to send indication signaling, wherein the indication signaling carries first identification information and / or second identification information, wherein the first identification information is used to identify the TCI state pool / group, and the second identification information is used to identify the target TCI state in the TCI state pool / group.

[0336] This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiment can be applied to this network-side device embodiment and can achieve the same technical effect.

[0337] Specifically, embodiments of this application also provide a network-side device. For example... Figure 14 As shown, the network-side device 1400 includes: an antenna 1401, a radio frequency (RF) device 1402, a baseband device 1403, a processor 1404, and a memory 1405. The antenna 1401 is connected to the RF device 1402. In the uplink direction, the RF device 1402 receives information through the antenna 1401 and transmits the received information to the baseband device 1403 for processing. In the downlink direction, the baseband device 1403 processes the information to be transmitted and sends it to the RF device 1402. The RF device 1402 processes the received information and transmits it through the antenna 1401.

[0338] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 1403, which includes a baseband processor.

[0339] The baseband device 1403 may include, for example, at least one baseband board on which multiple chips are disposed, such as... Figure 14 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 1405 via a bus interface to call the program in the memory 1405 and execute the network device operation shown in the above method embodiment.

[0340] The network-side device may also include a network interface 1406, such as a common public radio interface (CPRI).

[0341] Specifically, the network-side device 1400 of this embodiment further includes: instructions or programs stored in memory 1405 and executable on processor 1404, wherein processor 1404 calls the instructions or programs in memory 1405 to execute. Figure 11 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0342] This application embodiment also provides a readable storage medium storing a program or instructions that, when executed by a processor, implement... Figure 5 or Figure 9 The various processes of the method embodiments shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0343] The processor is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0344] This application embodiment also provides a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run programs or instructions to implement, as described above. Figure 5 or Figure 9 The various processes of the method embodiments shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0345] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0346] This application embodiment also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the following: Figure 5 or Figure 9 The various processes of the method embodiments shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0347] This application also provides a communication system, including: a terminal and a network-side device, wherein the terminal can be used to perform the steps of the method for detecting a reference signal as described above, and the network-side device can be used to perform the steps of the method for configuring a reference signal as described above.

[0348] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0349] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0350] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method of detecting a reference signal, characterized by, Comprising: The terminal receives indication signaling, the indication signaling carries first identification information, the first identification information is used to identify a first transmission configuration indication TCI state pool / group, and the indication signaling is used to activate the first TCI state pool / group; or, the indication signaling carries second identification information, the second identification information is used to identify a target TCI state in a second TCI state pool / group, and the second TCI state pool / group is determined according to the first identification information in the historically received indication signaling; or, the indication signaling carries the first identification information and the second identification information, wherein the first identification information is used to identify a third TCI state pool / group, the indication signaling is used to activate the third TCI state pool / group, and the second identification information is used to identify a target TCI state in the third TCI state pool / group; The terminal detects a target reference signal according to the first identification information and / or the second identification information.

2. The method of claim 1, wherein, The indication signaling includes downlink control information DCI signaling or medium access control unit MAC CE signaling.

3. The method of claim 1, wherein, The indication signaling includes any of the following: First signaling carrying single-layer information, the single-layer information including the first identification information and / or the second identification information; Second signaling carrying first-layer information and / or second-layer information, wherein the first-layer information includes the first identification information, and the second-layer information includes the second identification information; Combined signaling including first sub-signaling and / or second sub-signaling, wherein the first sub-signaling carries the first identification information, and the second sub-signaling carries the second identification information.

4. The method according to any one of claims 1 to 3, characterized in that, The target reference signal includes at least one of the following: Beam failure detection reference signal BFD-RS; New beam identification reference signal NBI-RS.

5. The method of claim 4, wherein, The terminal detects a target reference signal according to the first identification information and / or the second identification information, including: The terminal determines the BFD-RS according to the first identification information and / or the second identification information, and detects the BFD-RS; and / or, The terminal determines the NBI-RS according to the first identification information and / or the second identification information, and detects the NBI-RS.

6. The method of claim 5, wherein, In the case where the indication signaling includes the first signaling, the terminal determines the BFD-RS and / or the NBI-RS according to the first identification information and / or the second identification information, including: The terminal determines a target TCI state pool / group according to the first identification information carried by the first signaling, and determines that a reference signal corresponding to a target TCI state in the target TCI state pool / group is the BFD-RS and / or the NBI-RS according to the second identification information carried by the first signaling.

7. The method of claim 5, wherein, In the case where the indication signaling includes the second signaling, the terminal determines the BFD-RS and / or the NBI-RS according to the first identification information and / or the second identification information, including at least one of the following: If the second signaling carries first layer information and second layer information, the terminal determines a target TCI state pool / group according to the first layer information, and determines that a reference signal corresponding to a target TCI state in the target TCI state pool / group is the BFD-RS and / or the NBI-RS according to the second layer information; If the second signaling only carries the second layer information, the terminal determines a target TCI state pool / group according to first layer information in historical second signaling, and determines that a reference signal corresponding to a target TCI state in the target TCI state pool / group is the BFD-RS and / or the NBI-RS according to the second layer information.

8. The method of claim 5, wherein, In the case where the indication signaling includes combined signaling, the terminal determines the BFD-RS and / or the NBI-RS according to the first identification information and / or the second identification information, including at least one of the following: If the combined signaling includes a first sub-signaling and a second sub-signaling, the terminal determines a target TCI state pool / group according to the first sub-signaling, and determines that a reference signal corresponding to a target TCI state in the target TCI state pool / group is the BFD-RS and / or the NBI-RS according to the second sub-signaling; If the combined signaling only includes the second sub-signaling, the terminal determines a target TCI state pool / group according to historical first sub-signaling, and determines that a reference signal corresponding to a target TCI state in the target TCI state pool / group is the BFD-RS and / or the NBI-RS according to the second sub-signaling.

9. The method of claim 5, wherein, The method further includes: In the case where at least one or all of the target reference signals do not meet a performance requirement corresponding to beam failure recovery related detection, the terminal detects an NBI-RS in another TCI state pool / group in which the BFD-RS is located, and in the case where a target NBI-RS meeting the performance requirement is detected, sends first indication information to a network side device, the first indication information indicating that the target NBI-RS meets the performance requirement; or, In the case where at least one or all of the target reference signals do not meet the performance requirement, the terminal sends second indication information to a network side device through the BFD-RS, the second indication information being used to indicate that at least one or all of the target reference signals do not meet the performance requirement.

10. The method of claim 9, wherein, After the terminal sends the first indication information or the second indication information to the network side device, the method further includes: The terminal receives updated indication signaling at a target time-frequency location; The terminal detects updated target reference signals according to the updated indication signaling.

11. The method of claim 9, wherein, The performance requirement includes at least one of the following: Reference signal received power (RSRP) is greater than or equal to an RSRP threshold value; Signal to interference plus noise ratio (SINR) is greater than or equal to an SINR threshold value; Block error rate (BLER) is less than or equal to a BLER threshold value; Signal to noise ratio (SNR) is greater than or equal to an SNR threshold value.

12. An apparatus for detecting a reference signal, the apparatus comprising: Applied to a terminal, the apparatus includes: The first receiving module is configured to receive indication signaling, wherein the indication signaling carries first identification information used for identifying a first TCI state pool / group, and the indication signaling is used for activating the first TCI state pool / group; or the indication signaling carries second identification information used for identifying a target TCI state in a second TCI state pool / group, and the second TCI state pool / group is determined according to the first identification information in the historically received indication signaling; or the indication signaling carries the first identification information and the second identification information, wherein the first identification information is used for identifying a third TCI state pool / group, the indication signaling is used for activating the third TCI state pool / group, and the second identification information is used for identifying a target TCI state in the third TCI state pool / group. The first detecting module is configured to detect a target reference signal according to the first identification information and / or the second identification information.

13. The apparatus of claim 12, wherein, The indication signaling includes downlink control information (DCI) signaling or medium access control element (MAC CE) signaling.

14. The apparatus of claim 12, wherein, The indication signaling includes any one of the following: first signaling carrying single-layer information, wherein the single-layer information includes the first identification information and / or the second identification information; second signaling carrying first-layer information and / or second-layer information, wherein the first-layer information includes the first identification information, and the second-layer information includes the second identification information; combined signaling including first sub-signaling and / or second sub-signaling, wherein the first sub-signaling carries the first identification information, and the second sub-signaling carries the second identification information.

15. The apparatus of any one of claims 12-14, wherein, The target reference signal includes at least one of the following: a beam failure detection-reference signal (BFD-RS); a new beam identification-reference signal (NBI-RS).

16. The apparatus of claim 15, wherein, The first detecting module includes: a first detecting unit configured to determine the BFD-RS and detect the BFD-RS according to the first identification information and / or the second identification information; and / or a second detecting unit configured to determine the NBI-RS and detect the NBI-RS according to the first identification information and / or the second identification information.

17. The apparatus of claim 16, wherein, In a case where the indication signaling includes the first signaling, the first detecting unit includes: a first determining sub-unit configured to determine a target TCI state pool / group according to the first identification information carried by the first signaling, and determine that a reference signal corresponding to a target TCI state in the target TCI state pool / group is the BFD-RS and / or the NBI-RS according to the second identification information carried by the first signaling.

18. The apparatus of claim 16, wherein, In a case where the indication signaling includes the second signaling, the first detecting unit includes at least one of the following: a second determining sub-unit configured to, if the second signaling carries first-layer information and second-layer information, determine a target TCI state pool / group according to the first-layer information, and determine that a reference signal corresponding to a target TCI state in the target TCI state pool / group is the BFD-RS and / or the NBI-RS according to the second-layer information. The third determining subunit is configured to, if the second signaling only carries the second layer information, determine a target TCI state pool / group according to first layer information in historical second signaling, and determine that a reference signal corresponding to a target TCI state in the target TCI state pool / group is the BFD-RS and / or the NBI-RS according to the second layer information.

19. The apparatus of claim 16, wherein, In the case where the indication signaling comprises combined signaling, the first detecting unit comprises at least one of the following: The fourth determining subunit is configured to, if the combined signaling comprises a first sub-signaling and a second sub-signaling, determine a target TCI state pool / group according to the first sub-signaling, and determine that a reference signal corresponding to a target TCI state in the target TCI state pool / group is the BFD-RS and / or the NBI-RS according to the second sub-signaling; The fifth determining subunit is configured to, if the combined signaling only comprises the second sub-signaling, determine a target TCI state pool / group according to historical first sub-signaling, and determine that a reference signal corresponding to a target TCI state in the target TCI state pool / group is the BFD-RS and / or the NBI-RS according to the second sub-signaling.

20. The apparatus of claim 16, wherein, Further comprising: The second detecting module is configured to, in the case where at least one or all NBI-RSs in the target reference signals do not satisfy a performance requirement corresponding to beam failure recovery related detection, detect NBI-RSs in another TCI state pool / group in which the BFD-RS is located; The first sending module is configured to, in the case where a target NBI-RS satisfying the performance requirement is detected, send first indication information to a network side device, the first indication information indicating that the target NBI-RS satisfies the performance requirement; Or, The apparatus further comprises: The second sending module is configured to, in the case where at least one or all NBI-RSs in the target reference signals do not satisfy the performance requirement, send second indication information to a network side device through the BFD-RS, the second indication information being used to indicate that at least one or all NBI-RSs in the target reference signals do not satisfy the performance requirement.

21. The apparatus of claim 20, wherein, Further comprising: The second receiving module is configured to receive updated indication signaling at a target time-frequency location; The third detecting module is configured to detect updated target reference signals according to the updated indication signaling.

22. The apparatus of claim 20, wherein, The performance requirement comprises at least one of the following: Reference signal received power (RSRP) is greater than or equal to an RSRP threshold value; Signal to interference plus noise ratio (SINR) is greater than or equal to an SINR threshold value; Block error rate (BLER) is less than or equal to a BLER threshold value; Signal to noise ratio (SNR) is greater than or equal to an SNR threshold value.

23. A method of configuring a reference signal, the method comprising: The method comprises: A network side device determines N TCI state pools / groups according to M transmission configuration indication (TCI) states, N is an integer greater than or equal to 1, and M is an integer greater than N; The network side device sends indication signaling, wherein the indication signaling carries first identification information, the first identification information is used to identify a first TCI state pool / group, and the indication signaling is used to activate the first TCI state pool / group; or the indication signaling carries second identification information, the second identification information is used to identify a target TCI state in a second TCI state pool / group, and the second TCI state pool / group is determined according to the first identification information in the historically received indication signaling; or the indication signaling carries the first identification information and the second identification information, wherein the first identification information is used to identify a third TCI state pool / group, the indication signaling is used to activate the third TCI state pool / group, and the second identification information is used to identify a target TCI state in the third TCI state pool / group; and the first identification information and / or the second identification information are the basis for the terminal to detect a target reference signal.

24. The method of claim 23, wherein, The indication signaling includes downlink control information (DCI) signaling or medium access control element (MAC CE) signaling.

25. The method of claim 23, wherein, The indication signaling includes any of the following: First signaling carrying single-layer information, wherein the single-layer information includes the first identification information and / or the second identification information; Second signaling carrying first-layer information and / or second-layer information, wherein the first-layer information includes the first identification information, and the second-layer information includes the second identification information; Combined signaling including first sub-signaling and / or second sub-signaling, wherein the first sub-signaling carries the first identification information, and the second sub-signaling carries the second identification information.

26. The method of any one of claims 23-25, wherein, The target reference signal includes at least one of the following: Beam failure detection-reference signal (BFD-RS); New beam identification-reference signal (NBI-RS).

27. The method of claim 26, wherein, The method further includes: The network side device receives first indication information or second indication information, wherein the first indication information is used to indicate that at least one or all NBI-RSs in the target reference signal do not meet a performance requirement corresponding to beam failure recovery related detection, and a target NBI-RS in another TCI state pool / group in which the BFD-RS is located meets the performance requirement, and the second indication information is used to indicate that at least one or all NBI-RSs in the target reference signal do not meet the performance requirement. The network side device updates the indication signaling according to the first indication information or the second indication information, and sends the updated indication signaling at a target time-frequency location.

28. The method of claim 27, wherein, The network side device updates the indication signaling according to the first indication information, including: The network side device switches the activated TCI state pool / group to the TCI state pool / group in which the target NBI-RS is located according to the first indication information, generates updated indication signaling, and the updated indication signaling carries first identification information corresponding to the TCI state pool / group in which the target NBI-RS is located and second identification information corresponding to the TCI state of the target NBI-RS; or The network side device updates the indication signaling according to the first indication information, including: The network side device switches the activated TCI state pool / group to the TCI state pool / group in which the target NBI-RS is located according to the first indication information, generates updated indication signaling, and the updated indication signaling carries first identification information corresponding to the TCI state pool / group in which the target NBI-RS is located and second identification information corresponding to the TCI state of the target NBI-RS; or The network side device updates the TCI state in the activated TCI state pool / group according to the first indication information, so that the updated activated TCI state pool / group includes the target NBI-RS, and generates updated indication signaling carrying second identification information corresponding to the target NBI-RS.

29. The method of claim 27, wherein, The performance requirement includes at least one of: Reference signal received power (RSRP) is greater than or equal to an RSRP threshold value; Signal to interference plus noise ratio (SINR) is greater than or equal to an SINR threshold value; Block error rate (BLER) is less than or equal to a BLER threshold value; Signal to noise ratio (SNR) is greater than or equal to an SNR threshold value.

30. An apparatus for configuring a reference signal, the apparatus comprising: The network side device is applied to, and the apparatus includes: A determination module configured to determine N TCI state pools / groups according to M transmission configuration indication (TCI) states, wherein N is an integer greater than or equal to 1, and M is an integer greater than N; A third sending module configured to send indication signaling, wherein the indication signaling carries first identification information, the first identification information is used to identify a first TCI state pool / group, and the indication signaling is used to activate the first TCI state pool / group; or the indication signaling carries second identification information, the second identification information is used to identify a target TCI state in a second TCI state pool / group, and the second TCI state pool / group is determined according to first identification information in a historically received indication signaling; or the indication signaling carries first identification information and second identification information, wherein the first identification information is used to identify a third TCI state pool / group, the indication signaling is used to activate the third TCI state pool / group, and the second identification information is used to identify a target TCI state in the third TCI state pool / group; and the first identification information and / or the second identification information are used as a basis for terminal detection of a target reference signal.

31. The apparatus of claim 30, wherein, The indication signaling includes downlink control information (DCI) signaling or medium access control element (MAC CE) signaling.

32. The apparatus of claim 30, wherein, The indication signaling includes any of the following: First signaling carrying single-layer information, wherein the single-layer information includes the first identification information and / or the second identification information; Second signaling carrying first-layer information and / or second-layer information, wherein the first-layer information includes the first identification information, and the second-layer information includes the second identification information; Combined signaling including first sub-signaling and / or second sub-signaling, wherein the first sub-signaling carries the first identification information, and the second sub-signaling carries the second identification information.

33. The apparatus of any one of claims 30-32, wherein, The target reference signal includes at least one of: Beam failure detection reference signal (BFD-RS); New beam identification reference signal (NBI-RS).

34. The apparatus of claim 33, wherein, Further comprising: a third receiving module, configured to receive first indication information or second indication information, wherein the first indication information is used to indicate that at least one or all of the NBI-RSs in the target reference signals does not meet a performance requirement corresponding to beam failure detection (BFD) related detection, and a target NBI-RS in another TCI state pool / group in which the BFD-RS is located meets the performance requirement, and the second indication information is used to indicate that at least one or all of the NBI-RSs in the target reference signals does not meet the performance requirement; an updating module, configured to update indication signaling according to the first indication information or the second indication information, and transmit the updated indication signaling at a target time-frequency location.

35. The apparatus of claim 34, wherein, The updating module comprises: a switching unit, configured to switch an activated TCI state pool / group to a TCI state pool / group in which the target NBI-RS is located according to the first indication information, and generate updated indication signaling, wherein the updated indication signaling carries first identification information corresponding to the TCI state pool / group in which the target NBI-RS is located and second identification information of a TCI state corresponding to the target NBI-RS; or an updating unit, configured to update a TCI state in the activated TCI state pool / group according to the first indication information, so that the updated activated TCI state pool / group includes the target NBI-RS, and generate updated indication signaling, wherein the updated indication signaling carries second identification information corresponding to the target NBI-RS.

36. The apparatus of claim 34, wherein, The performance requirement comprises at least one of the following: a reference signal received power (RSRP) is greater than or equal to an RSRP threshold value; a signal to interference plus noise ratio (SINR) is greater than or equal to an SINR threshold value; a block error rate (BLER) is less than or equal to a BLER threshold value; and a signal to noise ratio (SNR) is greater than or equal to an SNR threshold value.

37. A terminal, characterized by A processor and a memory are included, the memory stores programs or instructions executable on the processor, and the programs or instructions are executed by the processor to implement the steps of the method for detecting a reference signal according to any one of claims 1 to 11.

38. A network-side device, comprising: A processor and a memory are included, the memory stores programs or instructions executable on the processor, and the programs or instructions are executed by the processor to implement the steps of the method for configuring a reference signal according to any one of claims 23 to 29.

39. A readable storage medium characterized by, The readable storage medium stores programs or instructions, and the programs or instructions are executed by the processor to implement the steps of the method for detecting a reference signal according to any one of claims 1 to 11, or implement the steps of the method for configuring a reference signal according to any one of claims 23 to 29.

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