WO2023104106A1

WO2023104106A1 - Method and apparatus for detecting reference signal, method and apparatus for configuring reference signal, terminal, and network side device

Info

Publication number: WO2023104106A1
Application number: PCT/CN2022/137292
Authority: WO
Inventors: 洪琪; 王臣玺; 李�根
Original assignee: 维沃移动通信有限公司
Priority date: 2021-12-08
Filing date: 2022-12-07
Publication date: 2023-06-15
Also published as: CN116248238A

Abstract

The present application relates to the technical field of communications, and discloses a method and apparatus for detecting a reference signal, a method and apparatus for configuring a reference signal, a terminal, and a network side device. The method for detecting a reference signal in embodiments of the present application comprises: a terminal receives indication signaling, the indication signaling carrying first identification information and/or second identification information, wherein the first identification information is used for identifying a transmission configuration indicator (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

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

Cross References to Related Applications

This application claims priority to Chinese Patent Application No. 202111493468.5 filed in China on December 08, 2021, the entire contents of which are hereby incorporated by reference.

technical field

The present application belongs to the field of communication technology, and specifically relates to a method, device, terminal and network side equipment for detecting and configuring reference signals.

Background technique

Beamforming technology can be used to strengthen high-frequency signals to improve the coverage of high-frequency bands. With the development of wireless communication technology, narrower beams (beam) will be used to compensate the loss caused by path loss (path loss), therefore, the number of total beams will increase sharply.

In the related technology, except for the reference signal transmitted on the synchronization signal (Synchronization Signal, SS)/physical broadcast channel (Physical broadcast channel, PBCH), the remaining reference signals need effective transmission configuration indicator (Transmission Configuration Indicator, TCI) Therefore, when the number of beams increases sharply, the probability that the network side device will reconfigure the TCI state will also increase, and in related technologies, the network side device uses radio resource control (Radio Resource Control, RRC ) signaling to reconfigure the TCI state, the delay of the RRC reconfiguration process is relatively long.

At the same time, with the introduction of a larger sub-carrier space (Sub-Carrier Space, SCS), the time of each slot (slot) becomes very short. At this time, the delay caused by the RRC reconfiguration will have a great impact on the communication system.

It can be known from the above that in the process of performing RRC reconfiguration on the TCI state in related technologies, there is a problem that the communication performance of the communication system is reduced due to a long delay.

Contents of the invention

Embodiments of the present application provide a method, device, terminal, and network-side equipment for detecting and configuring reference signals, which can solve the problem of relatively long delays in the process of reconfiguring the TCI state in related technologies, thereby reducing the Problems with the communication performance of the communication system.

In a first aspect, a method for detecting a reference signal is provided, the method comprising:

The terminal receives indication signaling, where the indication signaling carries first identification information and/or second identification information, where the first identification information is used to identify a transmission configuration indication TCI state pool/group, and the second identification information Used to identify the target TCI state in the TCI state pool/group;

The terminal detects a target reference signal according to the first identification information and/or the second identification information.

In a second aspect, an apparatus for detecting a reference signal is provided, which is applied to a terminal, and the apparatus includes:

The first receiving module is configured to receive indication signaling, where the indication signaling carries 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, The second identification information is used to identify the target TCI state in the TCI state pool/group;

The first detection module is configured to detect the target reference signal according to the first identification information and/or the second identification information.

In a third aspect, a method for configuring a reference signal is provided, the method comprising:

The 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, where the indication signaling carries first identification information and/or second identification information, where the first identification information is used to identify a TCI state pool/group, and the second The second identification information is used to identify the target TCI state in the TCI state pool/group.

In a fourth aspect, an apparatus for configuring a reference signal is provided, which is applied to a network side device, and the apparatus includes:

A determining module, configured to determine N TCI state pools/groups according to 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;

A third sending module, configured to send indication signaling, where the indication signaling carries first identification information and/or second identification information, where the first identification information is used to identify a TCI state pool/group, the The second identification information is used to identify the target TCI state in the TCI state pool/group.

In a fifth aspect, a terminal is provided, the terminal includes a processor and a memory, the memory stores programs or instructions that can run on the processor, and when the programs or instructions are executed by the processor, the following The steps of the method in one aspect.

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, and the indication signaling 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; the communication interface is also used to The identification information and/or the second identification information are used to detect the target reference signal.

In a seventh aspect, a network-side device is provided, the network-side device includes a processor and a memory, the memory stores programs or instructions that can run on the processor, and the programs or instructions are executed by the processor When realizing the steps of the method as described in the third aspect.

In an eighth aspect, 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 according to M transmission configuration indication TCI states, where N is an integer greater than or equal to 1 , 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 A TCI state pool/group, where the second identification information is used to identify a target TCI state in the TCI state pool/group.

A ninth aspect provides a communication system, including: a terminal and a network-side device, the terminal can be used to perform the steps of the method for detecting a reference signal as described in the first aspect, and the network-side device can be used to perform the steps in the method for detecting a reference signal as described in the first aspect. The steps of the method for configuring reference signals described in the three aspects.

In a tenth aspect, a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method as described in the first aspect are implemented, or the The steps of the method described in the third aspect.

In an eleventh aspect, a chip is provided, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or an instruction to implement the method described in the first aspect. method, or implement the method as described in the third aspect.

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

In a tenth aspect, a communication device is provided, configured to execute the steps of the method for detecting a reference signal as described in the first aspect, or implement the steps of the method for configuring a reference signal as described in the third aspect.

In this embodiment of the present application, the terminal receives the indication signaling, and the indication signaling 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 , the second identification information is used to identify a target TCI state in the TCI state pool/group; the terminal detects a target reference signal according to the first identification information and/or the second identification information. In this way, the terminal can detect the reference signal corresponding to the specified TCI state and/or the reference signal corresponding to the TCI state in the specified TCI state pool/group according to the received indication signaling, so that the TCI state can be realized by using the indication signaling Compared with the RRC reconfiguration in the related art, the reconfiguration of the pool/group or the TCI state has a shorter delay, so that the communication performance of the communication system can be improved.

Description of drawings

FIG. 1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied;

Fig. 2 is a schematic diagram of the transmission process of the SSB signal;

Fig. 3 is a schematic diagram of downlink beam selection and determination process;

4 is a schematic diagram of a beam failure detection process;

FIG. 5 is a flowchart of a method for detecting a reference signal provided in an embodiment of the present application;

FIG. 6 is a schematic diagram of a TCI state pool/group in a method for detecting a reference signal provided in an embodiment of the present application;

FIG. 7 is an application scenario diagram of Embodiment 1 of the present application;

FIG. 8 is an application scene diagram of the second embodiment of the present application;

FIG. 9 is a flowchart of a method for configuring a reference signal provided by an embodiment of the present application.

FIG. 10 is a schematic structural diagram of an apparatus for detecting a reference signal provided in an embodiment of the present application;

FIG. 11 is a schematic structural diagram of an apparatus for configuring a reference signal provided in an embodiment of the present application;

Fig. 12 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 13 is a schematic structural diagram of a terminal provided in an embodiment of the present application;

Fig. 14 is a schematic structural diagram of a network side device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and "second" distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the description and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

It is worth noting that the technology described in the embodiment of this application is not limited to the Long Term Evolution (Long Term Evolution, LTE)/LTE-Advanced (LTE-Advanced, LTE-A) system, and can also be used in other wireless communication systems, such as code 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 (Single-carrier Frequency Division Multiple Access, SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies. The following description describes the New Radio (New Radio, NR) system for example purposes, and uses NR terminology in most of the following descriptions, but these techniques can also be applied to applications other than NR system applications, such as the 6th generation (6th Generation , 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network side device 12 . Wherein, the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer, TPC), a laptop computer (Laptop Computer, LC) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook, Ultra-Mobile Personal Computer (UMPC), Mobile Internet Device (MID), Augmented Reality (AR)/Virtual Reality (VR) Equipment, Robots, Wearable Devices (Wearable Device, WD), vehicle equipment (Vehicle User Equipment, VUE), pedestrian terminal (Pedestrian User Equipment, PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), games Terminal-side devices such as computer, personal computer (PC), teller machine or self-service machine. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings) , smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 . The network side device 12 may include an access network device or a core network device, where the access network device 12 may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function, or Wireless access network unit. The access network device 12 may include a base station, a wireless local area network (Wireless Local Area Networks, WLAN) access point or a wireless fidelity (Wireless Fidelity, WiFi) node, etc., and the base station may be called a node B or an evolved node B (eNB) , access point, base transceiver station (Base Transceiver Station, BTS), radio base station, radio transceiver, basic service set (Basic Service Set, BSS), extended service set (Extended Service Set, ESS), home B node, Home evolved Node B, Transmitting Receiving Point (TRP) or some 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 In the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

Due to the lack of low-frequency resources, the 5th Generation (5G) NR uses high-frequency bands such as millimeter waves. Since the propagation loss of high-frequency bands is greater than that of low-frequency bands, its coverage distance is worse than that of LTE. In order to solve this problem, one solution is that 5G uses multi-antenna beam forming (Beam Forming) to strengthen the signal, and then achieve coverage enhancement.

Beamforming is a signal processing technique that uses an array of sensors to send and receive signals directionally. The beamforming technology adjusts the parameters of the basic unit of the phase array so that signals at certain angles obtain constructive interference, while signals at other angles obtain destructive interference, thereby making the antenna beam point to a specific direction. The establishment of the downlink beam is generally determined by the synchronization signal/physical broadcast channel signal block (or synchronization signal block) (Synchronization Signal and PBCH block, SSB) and channel state information (Channel State Information, CSI) reference signal (Reference Signal, RS) .

Take SSB as an example: due to the narrow beam, the same SSB is sent to different directions in the form of beams in the form of Time Division Duplex (TDD) in NR, so that user equipment (User Equipment) in each direction , UE) can receive the SSB. For example: as shown in FIG. 2 , within the time domain range of 5 ms, the base station transmits multiple SSBs (each SSB has its own SSB identifier (Index)), so as to cover different directions respectively. Correspondingly, the UE receives multiple SSBs with different signal strengths, and selects a beam with the strongest signal strength as its own SSB beam. The NR random access process uses beams, in which the SSB has multiple transmission opportunities in the time domain period, and has a corresponding number, which can correspond to different beams, and for the UE, only when the beam scanning signal of the SSB When the UE is covered, the UE has the opportunity to send a preamble (preamble). When the network side receives the UE's preamble, it knows the best downlink beam, so the SSB needs to be associated with the preamble, and the preamble is configured when the Physical Random Access Channel (PRACH) ( That is, the PRACH occasion) can be sent, that is to say, the SSB is associated with the PRACH occasion.

In addition, when the base station performs downlink communication with the UE, downlink beam selection and determination are involved. As shown in Figure 3, the downlink beam selection and determination specifically includes the following three steps:

Step 1. The transmitter (Tx) of the base station performs beam scanning by sending SSB signals (wherein, one SSB signal corresponds to one Tx wide beam (wide beam)), the base station side and the UE side respectively traverse each beam, and the UE side needs Find a suitable receiving (Rx) beam for each SSB signal (because SSB is the top layer of Quasi co-location (QCL), you need to ensure that each SSB corresponds to a suitable Rx beam);

Step 2. Tx is within the Tx wide beam (wide beam) range determined by step 1 to send CSI-RS (can be periodic, semi-persistent or aperiodic) or SSB (only periodic) The way of the signal is to perform beam refinement scanning, and the Rx beam of the UE remains unchanged to determine the Tx narrow beam (narrow beam);

Step 3. The base station fixes the Tx beam to the Tx narrow beam determined in step 2, and sends the CSI-RS (repeat transmission (repetition="on") is enabled, that is, the QCL relationship is not configured, and the UE independently receives and scans) signal, the Rx on the UE side performs beam scanning to determine the Rx beam.

In implementation, after the UE determines the Rx beam, the UE monitors the communication quality of the physical downlink control channel (PDCCH) through periodic reference signals, and if it finds that the channel cannot provide reliable communication, the UE will announce If the beam fails, the base station will be notified of the failure indication and a new suitable beam for beam failure recovery (Beam Failure Recovery, BFR).

Specifically, BFR is a process that combines L1 (physical layer) and L2 (Medium Access Control (Medium Access Control, MAC) layer) operations, and in the process of beam failure detection (Beam Failure Detection, BFD) and recovery, L2 The relevant protocol of the MAC layer, which can also be called link recovery, is composed of the following four parts: BFD, new candidate beam identification ((New candidate Beam Identification, NBI), beam failure recovery request (Beam Failure Recovery) Request, BFRQ) and beam recovery.

1. Beam failure detection

The terminal measures the Beam Failure Detection Reference Signal (BFD RS) at the physical layer, and judges whether a beam failure event occurs according to the measurement result. The judgment condition is: if it is detected that the metric (metric) of all control beams (control beam) (that is, the block error rate (Block Error Rate, BLER) of the hypothetical (hypothetical) PDCCH) satisfies the preset condition (that is, exceeds the preset BLER threshold), it is determined to be a beam failure instance (Beam Failure Instance, BFI), and the UE physical layer reports an indication to the UE high layer (ie, the MAC layer). The reporting process is periodic, and the BFI reporting period is the shortest of the BFD RS period, the lower limit is 2ms. As shown in Figure 4, the upper layers of the UE use counters and timers (such as: beam failure recovery timer (beam Failure Recovery Timer), hereinafter referred to as "timer") to count the indications of BFI reported by the physical layer. When a BFI instruction is received, the timer is restarted. If the timer times out, the counter is counted again. When the counter reaches the maximum number of times configured by the network, the UE declares that a beam failure event has occurred. Among them, the counter and timer of the MAC layer of the UE are configured for each active (active) bandwidth part (Bandwidth Part, BWP), and the startup and maintenance of the counter and timer on each BWP are independent.

Among them, BFD RS can be configured through explicit or implicit methods:

1) Explicit configuration: the network side configures periodic CSI-RS resources as BFD-RS to the UE through RRC.

It should be noted that: BFD-RS must have a QCL relationship with PDCCH demodulation reference signal (Demodulation Reference Signal, DMRS) (Control resource set (CORESET)). In an implementation, the RS used for BFD and Radio Link Monitor (RLM) may be jointly configured through an RRC message, so as to reduce configuration signaling overhead.

2) Implicit configuration: BFD-RS is determined by the RS in the activated TCI state corresponding to the PDCCH, and the index of the RS is included in set q0, where set q0 represents the set of BFD-RS. In implementation, the UE expects set q0 There are single-port RS in. In addition, the TCI state may contain two RSs. In this case, the RS corresponding to QCL type D is used as the BFD-RS. And the BFD-RS set will be updated with the update of the PDCCH TCI state.

2. Determination of new candidate beams (ie determination of NBI-RS)

The physical layer measures each candidate beam reference signal to find a new candidate beam, where the maximum number of candidate beams is usually 16 (ie maxNrofCandidateBeams=16), and all candidate beam reference signals are expressed as: set q1.

In the primary cell (PCell) or primary secondary cell (PSCell), the reference signal in Set q1 is associated with the PRACH resource, that is, the beam can be regarded as associated with the PRACH resource. When a new candidate beam reference signal (q-new) is selected (that is, a new candidate beam is determined), the UE will perform BFRQ on the PRACH resource corresponding to q_new. For the secondary cell (SCell), the NBI-RS must be configured by the network side device.

Among them, the reference signal may be any of the following:

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

When the UE physical layer is looking for a new candidate beam, it will meet the preset conditions (that is, the underlying reference signal received power (L1-Reference Signal Received Power, L1-RSRP) is greater than the RSRP domain value of the configured SSB (rsrp-ThresholdSSB) ) is reported to the UE high-level, and the reporting form (such as reporting: CSI-RS Resource Indicator (CSI-RS Resource Indicator, CRI)/SSB Resource Indicator (SSB Resource Indicator, SSBRI), or L1-RSRP) is the same as beam reporting .

In some embodiments, for PCell or PSCell, the physical layer reports the CSI-RS/SSB index and the L1-RSRP value whose L1-RSRP value is greater than the threshold to the upper layer;

In some other embodiments, for the Scell, the physical layer will first indicate to the upper layer whether there is an RS satisfying the L1-RSRP threshold, and if it exists, the RS index meeting the threshold condition and the L1-RSRP value measured thereof will be reported to the upper layer.

In this way, the high layer of the UE selects a new candidate beam NBI based on the report of the physical layer.

It should be noted that the configuration of the L1-RSRP threshold is divided into the following two situations:

Case 1: For SSB, configure the high-level parameter rsrp-ThresholdSSB through RRC;

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

3. BFRQ

The MAC layer determines the PRACH channel to perform BFRQ according to the selected new beam, and the PRACH channel is a channel already configured by the network side device.

4. Beam Restoration

For PCell or PSCell, the configured candidate beam RS is associated with the PRACH resource. When one of the RSs is selected as a new candidate beam (hereinafter referred to as q_new), the UE will send corresponding The preamble, and at the n+4th time slot, the UE will use the beam receiving q_new to start detecting the cell wireless network temporary identifier (Cell RNTI, C-RNTI) in the search space (SearchSpace) BFR and its associated CORESET )/Modulcation Coding Scheme Cell RNTI (MCS-C-RNTI) scrambled PDCCH, the detection window length is configured by the RRC parameter: beamFailureRecoveryTimer (beamFailureRecoveryTimer), and the SearchSpace BFR is configured by High-level parameters: recovery search space ID (recoverySearchSpaceId) configuration.

For the received PDCCH and the corresponding physical downlink shared channel (PDSCH), the UE will use the QCL Type A in the TCI state with the same QCL Type D and q_new according to the historical record or the configured tci-StatesPDCCH-ToAddList For the estimation and decoding of PDCCH/PDSCH, until the MAC CE activates a new TCI state or RRC configures an added TCI states list (tci-StatesPDCCH-ToAddList) to add a new TCI state, the UE will use the new TCI state for PDCCH /PDSCH reception and decoding, wherein, according to q_new, the UE searches for the TCI state of QCL Type D and q_new quasi-co-location from tci-StatesPDCCH-ToAddLis as the new TCI state for PDCCH/PDSCH reception and decoding.

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

During downlink transmission, the source reference signals that can be used as Tx beam indication include:

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

CSI-RS for beam management;

CSI-RS for CSI acquisition;

CSI-RS for tracking (i.e. Tracking Reference Signal (TRS)).

During uplink transmission, the source reference signals that can be used as Tx beam indication include:

SS/PBCH block, wherein the Rx beam for receiving the SS/PBCH block can be used as the Tx beam for sending uplink data;

CSI-RS for beam management;

The Rx beam used to receive certain CSI-RS resources can be used as the Tx beam for sending uplink data;

CSI-RS for CSI acquisition;

Sounding Reference Signal (Sounding Reference Signal, SRS), where the Tx beam used to transmit certain SRS resources can also be used as the Tx beam for uplink data transmission.

Wherein, by definition, QCL means that the channel characteristic of symbol transmission on one port can be inferred from the channel characteristic of symbol transmission on another port. Strictly speaking, QCL refers to the correlation between reference signals for UE reception, but in practical applications, the base station can only ensure that the reference signals sent by the same TRP have similar characteristics.

In LTE, the channel characteristic classification defined by the QCL rule can include: Type A and Type B.

Among them, Type A means: assume that the antenna ports that transmit the common reference signal (CRS), CSI-RS, and DM-RS have the same delay spread, Doppler spread, Doppler frequency shift, and average delay characteristics.

Type B means: assume that the antenna ports transmitting CSI-RS and DM-RS have the same delay spread, Doppler spread, Doppler frequency shift and average delay characteristics.

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.

Among them, Type A means: delay spread, Doppler spread, Doppler frequency shift and average delay.

Type B means: Doppler extension, Doppler frequency shift.

It should be noted that for frequency bands below 6GHz, Type B has the following conditions:

Case 1: The target reference signal is a narrow beam, and the source reference signal is a wide beam.

In this case, it is generally believed that the Doppler parameters (Type B) experienced by signals sent from the same site are still consistent, but the scatterers covered by beams of different widths are different, which will affect the signal propagation experience. The delay spread and average delay parameters have a greater impact. Therefore, the two reference signals cannot form a QCL relationship in terms of delay spread and average delay. For example, TRS uses sector-wide beams, while CSI-RS may generate narrow beams through beamforming.

Case 2: The time-domain density of the target reference signal is insufficient, but the frequency-domain density is sufficient.

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

Type C means: Doppler frequency shift, average delay. For the frequency band above 6GHz, and the synchronization signal block SSB is the source RS, because the resources and density occupied by the SSB are limited, it can only obtain the relevant parameter estimation of Type C, and the rest can be obtained by the target RS itself.

Type D means: space Rx parameters.

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, that is, omnidirectional antennas cannot be used, and they can only be used for beamforming to generate beams for transmission. For example FR2 etc. In addition, the NR QCL rules of Type A, Type B, and Type C are similar to the LTE QCL rules, that is, if the two reference signals belong to Type B, the Doppler spread and Doppler shift characteristics of the two are the same. Type D is suitable for high-frequency bands, and requires both the base station and the UE to transmit through beamforming beams. Therefore, when the base station changes the Tx beam due to mobility and other reasons, it is necessary to inform the UE of the characteristic parameters of the Rx beam suitable for the new Tx beam, so as to ensure that the UE can select a suitable Rx beam according to the characteristic parameters. For Type D, assuming that reference signal A and reference signal B are spatially co-located, it means that the UE can use the same Rx beam when receiving these two reference signals.

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

The TCI frame can assist 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 DM-RS reception. But for a given reference signal, not all other reference signals can be used as source signals, only some specific reference signals can be used as source signals, which are included in the TCI state to transmit QCL information.

For example: in the following communication protocol configuration, referenceSignal indicates the reference signal (such as: CSI-RS and/or SSB) that can be used to measure the beam. The performance parameters of the reference signal can be configured through the following protocol, such as: TCI state identification, QCL type, Service cell ID, etc.

In summary, with the application of narrower beams, the total number of beams will increase sharply, resulting in a sharp increase in the number of TCI states required to indicate the reference signals corresponding to each beam. Correspondingly, network-side device reconfiguration The probability of the TCI state will also increase accordingly, and in related technologies, the way of reconfiguring the TCI state through the RRC will cause a long delay, which reduces the communication performance of the communication system.

In the embodiment of the present application, the terminal determines the target reference signal according to the TCI state pool/group indicated in the indication signaling sent by the network side device, and/or the TCI state, and detects the target reference signal. The TCI state Compared with the RRC reconfiguration method of the TCI state in the related art, the reconfiguration method has a shorter delay, which can reduce the impact of the delay in the TCI state reconfiguration process on the communication system, that is, to achieve improved communication system communication performance.

The method, device, terminal, and network side equipment provided by the embodiments of the present application for detecting and configuring reference signals are described in detail below with reference to the accompanying drawings through some embodiments and application scenarios.

Please refer to FIG. 5 , a method for detecting a reference signal provided in an embodiment of the present application. The execution body of the method may be a terminal. As shown in FIG. 5 , the method for detecting a reference signal may include the following steps:

Step 501, the terminal receives indication signaling, where the indication signaling carries 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 The second identification information is used to identify the target TCI state in the TCI state pool/group.

In an 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 part of the same TCI status. For example: as shown in Figure 6, assume that the network side device divides the TCI state into n TCI state pools (pools), among which, pool 0 includes 5 TCI states, which are: TCI 0~4, and pool 1 can also Including TCI 5, and the pool 1 can also include other TCI states different from those in pool 0: TCI 5-9.

It should be noted that the TCI state pool/group identified by the first identification information may be understood as: the TCI state pool/group activated by the network side device. For example: the network side device can only activate at least some of the TCI pools in the n TCI pools, and other TCI pools are not activated. At this time, the network side device informs the terminal which TCI pools are activated through the first identification information in the indication signaling , so that the terminal measures the RS corresponding to the TCI state in the activated TCI pool according to the instruction of the network side device.

In addition, the number of TCI states contained in different TCI state pools/groups can be different, and the number of TCI states contained in each TCI state pool/group can be configured by the network side device, for example: each of the TCI state pools The first identification information corresponding to the /group can be configured by the RRC on the network side, and the number and content of the TCI states contained in each TCI state pool/group can be reconfigured by the RRC, or dynamically by the MAC control unit (Control Element, CE) Adjustments are not elaborated here.

In some embodiments, the TCI state in a TCI state pool/group may correspond to the same type D RS. For example, as shown in FIG. State group 1 corresponds to RS 0, RS 1, RS 2, RS 3 and RS 4, and the type D RS corresponding to these 5 RSs is Source#0. TCI state group 2 corresponds to RS 4, RS 5, RS 8 and RS 9, and the type D RS corresponding to these 4 RS is Source#1.

A wide beam (assuming that the corresponding type D RS is CSI-RS 1) has a coverage angle of 60°, while a narrow beam has a coverage angle of 20°, and the wide beam covers 3 narrow beams (assuming that the corresponding RS is SSB 1. SSB 2 and SSB 3), a TCI state pool/group can include three TCI states corresponding to SSB 1, SSB 2 and SSB 3 respectively.

In some other embodiments, the TCI state in a TCI state pool/group may also correspond to different type D RS (reference RS).

Normally, if the TCI states in a TCI state pool/group correspond to different type D RSs, then the different type D RSs corresponding to the TCI states in the same TCI state pool/group are related to each other or adjacent to each other. Among them, different type D RSs may be related to each other: the coverage of one type D RS includes the coverage of another type D RS, or different type D RSs are related to the same RS. For example: the coverage angle of a certain wide beam is 60°, and the coverage angle of a narrow beam is 20°, and the wide beam can cover 3 narrow beams, at this time, a TCI status pool/group can include references carried by the wide beam The TCI state of the signal, and the TCI state of the reference signal carried by the narrow beam covered by the wide beam.

In addition, the indication signaling carries the first identification information and/or the second identification information, which can be understood as:

Case 1: When the network side device sends the indication signaling to the terminal for the first time, the indication signaling may carry the first identification information and the second identification information, so that the terminal determines the activated target identified by the first identification information A TCI state pool/group, and may further determine the target TCI state in the target TCI state pool/group according to the second identification information.

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

Example 1: In the case that the activated TCI state pool/group configured by the network side device is switched, the indication signaling may carry first identification information and second identification information, and the first identification information is used to identify the switched TCI state pool/group. TCI state pool/group, the second identification information is used to identify the target TCI state in the switched TCI state pool/group.

Example 2: When the activated TCI state pool/group configured by the network side device is not switched, and the TCI state in the TCI state pool/group changes, the indication signaling may carry the second identification information. At this time, The terminal may determine the target TCI state pool/group according to the last received indication signaling carrying the first identification information, and determine the target TCI state pool/group according to the second identification information carried in the currently received indication signaling. The target TCI state.

Of course, when the network side device sends the indication signaling to the terminal for the nth time, there may also be a situation where the indication signaling only carries the first identification information. At this time, the terminal can check the target TCI status identified by the first identification information. The reference signals corresponding to all TCI states in the pool/group are detected. For example, the network side device configures the target TCI state pool/group to only include one or at least two TCI states corresponding to the reference signals that the terminal needs to detect.

In addition, in the case that the indication signaling only carries the second identification information, in addition to acquiring the first identification information in the indication signaling received historically, the terminal may also acquire the first identification information in other ways, for example : The first identification information is determined in a pre-agreed manner in the protocol, or in a terminal default manner.

It is worth noting that the second identification information in the embodiment of the present application only needs to be able to distinguish each TCI state in the TCI state pool/group corresponding to the first identification information, and the required number of bits is less than that in the related art The number of bits occupied by the TCI identifier used to indicate the status of each TCI.

In this embodiment, when the terminal receives the indication signaling for the nth time, it can only receive the indication signaling carrying the first identification information or the second identification information. Compared with the related technology, it needs to be configured with each TCI In terms of one-to-one correspondence between stas and indication information, the resource consumption of the terminal and the network-side device can be reduced. For example: assuming that the total number of TCI stas is 128, 7-bit (bit) indication information is required to indicate a certain TCI stas in the related art, and in the embodiment of the present application, the first identification information of 3 bits can be used to distinguish each TCI stas TCI stas pool/group, and use the 4bit second identification information to distinguish each TCI stas in the TCI stas pool/group, so that when the indication signaling only contains the second identification information, it only needs to consume 4 bits of transmission resources Can indicate specified TCI stas.

Step 502, the terminal detects a target reference signal according to the first identification information and/or the second identification information.

In some embodiments, the terminal detecting the target reference signal may be understood as: the terminal detecting the BFD-RS and/or the NBI-RS. That is, the target reference signal may include beam recovery failure reference signal BFD-RS, or include new beam identification reference signal NBI-RS, or include BFD-RS and NBI-RS, where the number of NBI-RS may be greater than is equal to 1.

In an implementation, the BFD-RS and the NBI-RS may be configured in the same activated TCI state pool/group by the network side device, 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 is notified to the terminal through indication signaling, so that the terminal can use the first identification information carried in the received indication signaling and the The/or second identification information determines the BFD-RS and/or the NBI-RS, and performs corresponding detection on the BFD-RS and/or the NBI-RS.

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 (that is, activated) TCI state pool/group, for example: the target TCI state pool/group includes a BFD - The TCI status corresponding to the RS, and the TCI status corresponding to the 3 NBI-RSs. At this time, the indication signaling may 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, and the terminal may determine the TCI state according to the first identification information. The target TCI state pool/group, and determine the BFD-RS according to the second identification information, and the terminal can also use the reference signals corresponding to other TCI states in the target TCI state pool/group as the Described NBI-RS.

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 configures (that is, activates) two TCI state pools/groups, the BFD-RS may be located in one of the TCI state pools/groups, and the NBI-RS may be located in the other TCI state pool/group.

In an implementation, the terminal may determine whether the target reference signal belongs to the BFD-RS or the NBI-RS according to the configuration parameters of the target reference signal, so as to perform corresponding detection, which will not be described in detail here.

In other words, the terminal detecting the target reference signal according to the first identification information and/or the second identification information may include:

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.

Similar to step 501, when the terminal receives the indication signaling for the first time, the terminal determines the BFD-RS and/or NBI-RS according to the first identification information and the second identification information; When receiving the indication signaling, the terminal determines the BFD-RS and/or NBI-RS according to the first identification information and the second identification information, or the terminal determines the BFD-RS and/or NBI-RS according to the first The identification information determines the BFD-RS and/or NBI-RS, or the terminal determines the BFD-RS and/or the BFD-RS and/or NBI-RS according to the second identification information in the currently received indication signaling and the first identification information in the historical indication signaling Or NBI-RS, wherein the history indication signaling indicates the indication signaling carrying the first identification information received by the terminal last time.

Specifically, the terminal performs fault failure detection on the BFD-RS, so as to determine whether a beam failure event (beam failure event) occurs in the terminal according to the detection result; and/or,

The terminal performs new candidate beam detection on the NBI-RS to determine whether there is an NBI-RS meeting the performance requirement. Further, when a beam failure event occurs in the terminal, the terminal may report the identification information of the NBI-RS meeting the performance requirement, or report the indication information that no NBI-RS meeting the performance requirement has been detected.

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

The reference signal received power RSRP is greater than or equal to the RSRP threshold;

The Signal-to-Noise and Interference Ratio (SINR) is greater than or equal to the SINR threshold;

The block error rate BLER is less than or equal to the BLER threshold;

Signal-to-Noise Ratio (SNR) is greater than or equal to the SNR threshold.

In an implementation, the aforementioned RSRP threshold and/or SINR threshold and/or BLER threshold and/or SNR threshold may be predefined in a communication protocol. Certainly, the aforementioned RSRP threshold and/or SINR threshold and/or BLER threshold and/or SNR threshold may also be determined by the terminal according to its own performance parameters, for example: the stronger the terminal performance, the greater the BLER threshold may be, here Not specifically limited.

It is worth noting that, in related technologies, after RRC reconfigures the TCI state, the UE needs to decode the new TCI state. However, in the embodiment of the present application, by configuring the BFD-RS and the NBI-RS in the same activated TCI state pool/group, the network side device can reduce the probability of the terminal decoding a new TCI state, thereby reducing the s expenses.

As an optional implementation manner, the indication signaling may be DCI signaling or MAC CE signaling.

Taking the indication signaling as DCI signaling as an example, the DCI signaling may use the newly added indication field to carry the first identification information and/or the second identification information, or use the existing indication information in the DCI signaling Available bits in the field carry the first identification information and/or the second identification information.

In this embodiment, the activated TCI state pool/group can be switched through DCI signaling, that is, the activated TCI state pool/group changes. At this time, the DCI signaling can carry the first identification information and the second identification information; Or, at least part of the TCI state in the activated TCI state pool/group is updated through DCI signaling, that is, the activated TCI state pool/group remains unchanged, and what is changed is the TCI state content in the activated TCI state pool/group. When , the DCI signaling may carry the second identification information.

For the MAC CE signaling, the manner of carrying the first identification information and/or the second identification information through the MAC CE signaling is similar to the above-mentioned manner of carrying the first identification information and/or the second identification information through the DCI signaling. This will not be repeated here.

For example: as shown in Figure 8, the network side updates part of the TCI state information in the TCI state pool (Pool 0) from TCI 0-3 to TCI 5-9 through the MAC CE.

In this embodiment, since the DCI signaling belongs to the physical layer, its configuration and transmission delay are shorter than the RRC high-level signaling, so configuring the TCI state through the DCI signaling can shorten the process of reconfiguring the TCI state similarly, using the MAC CE signaling of the MAC layer to configure the TCI state, compared with the way of reconfiguring the TCI state through the RRC high-level signaling, can also reduce the reconfiguration of the TCI state process. delay.

As an optional implementation manner, the indication signaling includes any of the following:

first signaling carrying single-layer information, where the single-layer information includes the first identification information and/or second identification information;

second signaling carrying layer-1 information and/or layer-2 information, wherein the layer-1 information includes the first identification information, and the layer-2 information includes the second identification information;

Combined signaling comprising 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 .

Implementation Mode 1

For the embodiment in which the indication signaling includes first signaling carrying single-layer information, the first identification information and/or second identification information is single-layer information carried in the first signaling, so that the terminal The target TCI state pool/group may be determined according to the single-layer information, or the target TCI state in the target TCI state pool/group may also be determined, so as to determine the BFD-RS and/or NBI-RS accordingly.

Optionally, when 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 second identification information ,include:

The terminal determines a target TCI state pool/group according to the first identification information carried in the first signaling, and determines a target in the target TCI state pool/group according to the second identification information carried in the first signaling The reference signal corresponding to the TCI state is the BFD-RS and/or the NBI-RS.

Of course, in implementation, the network side device may configure the single-layer information in the first signaling, so that the first signaling carries the first identification information or the second identification information, which is not specifically limited here.

Implementation mode two

For the embodiment in which the indication signaling includes second signaling carrying first layer information and/or second layer information, the first identification information and second identification information are respectively located in different layers of the second signaling, and The second signaling may carry only layer 1 information, or only layer 2 information, or both layer 1 information and layer 2 information.

Optionally, when 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 layer-1 information and layer-2 information, the terminal determines the target TCI state pool/group according to the layer-1 information, and determines the target TCI according to the layer-2 information The reference signal corresponding to the target TCI state in the state pool/group is the BFD-RS and/or the NBI-RS;

If the second signaling only carries the layer-2 information, the terminal determines the target TCI state pool/group according to the layer-1 information in the historical second signaling, and determines the target TCI state pool/group according to the layer-2 information. The reference signal corresponding to the target TCI state in the target TCI state pool/group is the BFD-RS and/or the NBI-RS.

Wherein, the above-mentioned historical second signaling may be understood as the second signaling carrying the layer-1 information received by the terminal last time. In other words, when the activated TCI state pool/group configured by the network side device has not changed, the network side device only carries the first identification information and the second identification information in the indication signaling sent for the first time , in the indication signaling sent subsequently, only the second identification information may be carried, which can reduce transmission resources for transmitting the indication signaling.

Of course, the second signaling may only carry the first layer information, for example: the network side device updates the TCI status in the target TCI status pool/group indicated by the first layer information in advance, so that the target TCI status The updated TCI status in the pool/group is used to indicate the BFD-RS and/or the NBI-RS, which is not specifically limited here.

Implementation Mode Three

For the embodiment in which the indication signaling includes combined signaling of the first sub-signaling and/or the second sub-signaling, the first sub-signaling and the second identification information are respectively carried by different sub-signalings . In an implementation, the terminal may only receive the first sub-signalling but not the second sub-signalling, or the terminal may only receive the second sub-signalling but not the first sub-signalling, or the terminal may receive the first sub-signaling signaling and the second sub-signaling.

Optionally, when 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 second identification information, Include at least one of the following:

If the combined signaling includes the first sub-signaling and the second sub-signaling, the terminal determines the target TCI state pool/group according to the first sub-signaling, and determines the target TCI status pool/group according to the second sub-signaling. The reference signal corresponding to the target TCI state in the target TCI state pool/group is the BFD-RS and/or the NBI-RS;

If the combined signaling only includes the second sub-signalling, the terminal determines the target TCI state pool/group according to the historical first sub-signalling, and determines the target TCI state according to the second sub-signalling The reference signal corresponding to the target TCI state in the pool/group is the BFD-RS and/or the NBI-RS.

Wherein, the above-mentioned historical first sub-signalling may be understood as the first sub-signaling carrying the layer-1 information received by the terminal last time. In other words, when the activated TCI state pool/group configured by the network side device does not change, the network side device only indicates the BFD-RS and/or the NBI-RS for the first time, and at the same time The first sub-signalling and the second sub-signalling are sent, and only the second sub-signalling may be sent in the indication signaling sent subsequently, which can reduce the transmission resources for transmitting the indication signaling.

Of course, the combined signaling may only include the first sub-signaling, for example: the network side device updates the TCI status in the target TCI status pool/group indicated by the first sub-signaling in advance, so that the target TCI The updated TCI state in the state pool/group is used to indicate the BFD-RS and/or the NBI-RS, which is not specifically limited here.

Optionally, the method for detecting a reference signal further includes:

In the case that at least one or all NBI-RSs in the target reference signal do not meet the performance requirements corresponding to beam failure recovery related detection, the terminal detects the BFD-RS in another TCI state pool/group where the BFD-RS is located NBI-RS, and when a target NBI-RS meeting the performance requirement is detected, send first indication information to the network side device, the first indication information indicating that the target NBI-RS meets the performance requirement ;or,

When at least one or all of the NBI-RS in the target reference signal does not meet the performance requirement, the terminal sends second indication information to the network side device through the BFD-RS, the second indication information It is used to indicate that at least one or all NBI-RSs in the target reference signal do not meet the performance requirement.

It should be noted that, the above-mentioned first indication information or second indication information may be reported to the network side device when the terminal detects that a beam failure event occurs. In addition, the first indication information or the second indication information may be sent to the network side device through any uplink signal such as PRACH, PUCCH, PUSCH.

In an optional implementation manner, 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 activated TCI state pools/groups .

In this way, when the terminal device detects that at least one or all of the NBI-RS in the TCI state pool/group containing the BFD-RS indicated by the network side device does not meet the performance requirements, the terminal can detect by itself the The NBI-RS in another TCI state pool/group of the BFD-RS can improve the efficiency and probability that the terminal detects the NBI-RS meeting the performance requirements.

Further, when the terminal detects an NBI-RS meeting the performance requirement in the other TCI state pool/group, the terminal reports the first indication information to the network side device. At this time, the network testing device may switch or update the activated TCI state pool/group after switching or updating the TCI in the activated TCI state pool/group according to the first indication information. The target NBI-RS is included in the TCI state pool/group. After that, the network side device configures the BFD-RS and/or NBI-RS in the switched or updated activated TCI state pool/group.

In another optional implementation manner, the terminal device detects that at least one or all of the NBI-RSs in the TCI state pool/group containing the BFD-RS indicated by the network side device do not meet the performance requirements Next, the terminal directly reports the second indication information to the network side device.

Correspondingly, the network side device may switch the activated TCI state pool/group or update the TCI in the activated TCI state pool/group based on the received first indication information or second indication information sent by the terminal. etc., reconfigure the TCI state, and send the updated indication signaling corresponding to the switched or updated activated TCI state pool/group and the TCI state contained therein to the terminal, so that the terminal can The indication signaling for detecting other reference signals.

Optionally, 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 the updated indication signaling at the target time-frequency position;

The terminal detects the updated target reference signal according to the updated indication signaling.

In an implementation, the target time-frequency position may be a time period and/or a frequency domain position predefined by the protocol, or the target time-frequency position may be a time period and/or a frequency domain position reported by the terminal, for example : The uplink signal carrying the first indication information or the second indication information also carries a time period and/or a frequency domain position specified by the terminal.

In addition, the meaning of the above-mentioned updated indication signaling is similar to the indication signaling in step 501, the only difference is: if the activated TCI state pool/group has not been switched, the updated indication signaling can only The second identification information is carried instead of the first identification information. For example: the updated indication signaling is the first signaling carrying single-layer information, or the second signaling carrying only second-layer information, or combined signaling including only the second sub-signalling.

Correspondingly, the process of the terminal detecting the updated target reference signal according to the updated indication signaling is the same as in step 502, the terminal detects the target reference signal according to the first identification information and/or the second identification information The process of the target reference signal is similar, the only difference is: if the activated TCI state pool/group has not been switched, the terminal will The second identification information is the detection target reference signal, which will not be repeated here.

Please refer to FIG. 9 , a method for configuring a reference signal provided by an embodiment of the present application, the execution subject of which may be a network side device, as shown in FIG. 9 , the method for configuring a reference signal may include the following steps:

Step 901 , the network side device determines N TCI state pools/groups according to 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.

In an implementation, M may be less than or equal to the total number of TCI state pools/groups respectively included in the N TCI state pools/groups, that is, different TCI state pools/groups may include the same TCI state.

In addition, the network side device may activate one or at least two of the N TCI state pools/groups for the specified terminal.

In implementation, the network side device can switch to the TCI state pool/group configured (activated) for the terminal through DCI signaling, or update the TCI state information in the TCI state pool/group configured (activated) for the terminal through MAC CE.

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

The meanings of the TCI state pool/group, TCI state, indication signaling, first identification information, and second identification information in the embodiment of the present application are the same as the TCI state pool/group and TCI state in the method embodiment shown in Figure 5 The meanings of the indication signaling, the first identification information, and the second identification information are the same respectively, and will not be repeated here. In addition, the method for configuring a reference signal provided in the embodiment of the present application corresponds to the method for detecting a reference signal as shown in FIG. 5 , and the only difference is that the method for configuring a reference signal as shown in FIG. , and the embodiment of the method shown in Figure 5 is that the terminal performs detection according to the reference signal indicated by the network side device, and the method of configuring the reference signal as shown in Figure 9 can obtain benefits similar to the method of detecting the reference signal shown in Figure 5 effect, and will not be elaborated here.

Optionally, the indication signaling includes downlink control information DCI signaling or media access control element MAC CE signaling.

Optionally, the indication signaling includes any of the following:

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

Beam restoration failure reference signal BFD-RS;

New beam identification reference signal NBI-RS.

Optionally, the method also includes:

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

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

Optionally, the network side device updates 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 where the target NBI-RS is located according to the first indication information, and generates an updated indication signaling, and the updated The indication signaling carries the first identification information corresponding to the TCI state pool/group where the target NBI-RS is located and the second identification information of the TCI state corresponding to 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 an updated The updated indication signaling carries the second identification information corresponding to the target NBI-RS.

It should be noted that, in implementation, 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 same The first identification information corresponding to the TCI state pool/group where the target NBI-RS is located is not specifically limited here.

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

The signal-to-interference-plus-noise ratio SINR is greater than or equal to the SINR threshold;

The block error rate BLER is less than or equal to the BLER threshold;

The signal-to-noise ratio SNR is greater than or equal to the SNR threshold.

In order to facilitate the understanding of the method for detecting reference signals and the method for configuring reference signals provided in the embodiments of the present application, the following three embodiments are taken as examples to illustrate the methods for detecting reference signals and the methods for configuring reference signals provided in the embodiments of the present application :

Embodiment one

As shown in Figure 6 and Figure 7, it is assumed that the base station currently configures (activates) two TCI state groups for the UE, wherein TCI state group 1 includes five TCI states corresponding to RS 0-4 respectively, and the The type D RS corresponding to the 5 RSs is Source#0. TCI state group 2 includes 4 TCI states corresponding to RS 4-9 respectively, and the type D RS corresponding to the 4 RS is Source#1. At this time, the UE receives the indication signaling sent by the base station to indicate that the BFD-RS at this time is RS 4 in TCI state group 1, and performs NBI-RS detection on RS 0-3. At this time, if the UE moves from the range covered by RS 4 to the range covered by RS 5, the detection results of the UE for beams corresponding to all NBI-RSs in TCI state group 1 cannot meet the performance requirements, and the UE detects NBI-RS in TCI status group 2. When the UE detects that RS 5 is the best, the UE reports to the network side device: TCI state group 2 is the most suitable now, and the network side device instructs to switch to TCI state group 2 through the updated indication signaling. That is, the layer-1 information in the second signaling or the first sub-signaling in the combined signaling is updated. Subsequent selection of BFD-RS and NBI-RS is performed in TCI state group 2. Subsequently, the UE re-detects the RS according to the updated indication signaling within a certain period of time.

Embodiment two

As shown in Figure 6, it is assumed that the base station currently configures (activates) a TCI state group for the UE, wherein TCI state group 1 includes 5 TCI states corresponding to RS 0-4 respectively, and the 5 RSs correspond to The type D RS is Source#0. At this time, the UE receives the indication signaling sent by the base station to indicate that the BFD-RS at this time is RS 4, and performs NBI-RS detection on RS 0-3. At this time, if it is found that all or at least one of RS 0-3 does not meet the performance requirements, the UE reports the second indication information to the network side device through BFD-RS (that is, RS 4) (it can be through PRACH, PUCCH, PUSCH, etc. Uplink signal reporting). Based on receiving the second indication information reported by the UE, the network side device switches the TCI state group configured for the UE to a corresponding TCI state group through DCI signaling. Subsequently, the UE re-detects the RS within a certain period of time according to the updated indication signaling (that is, the above-mentioned DCI signaling used to switch the TCI state group).

In this embodiment, the UE preferably reports the second indication information to the network side device when RS 0-3 do not meet the performance requirements.

Embodiment Three

As shown in Figure 6 and Figure 8, it is assumed that the base station currently configures (activates) a TCI state group for the UE, wherein TCI state group 1 includes 5 TCI states corresponding to RS 0~4 respectively, and the 5 The type D RS corresponding to each RS is Source#0. At this time, the UE receives the indication signaling sent by the base station to indicate that the BFD-RS at this time is RS 4, and performs NBI-RS detection on RS 0-3. At this time, if it is found that all or at least one of RS 0-3 does not meet the performance requirements, the UE reports the second indication information to the network side device through BFD-RS (that is, RS 4) (it can be through PRACH, PUCCH, PUSCH, etc. Uplink signal reporting). The network side is based on receiving the second indication information reported by the UE, and the network side device updates the TCI state information in the activated TCI state group through the MAC CE based on receiving the second indication information reported by the UE, for example: As shown in Figure 8, the network side updates part of the TCI state information in the TCI state pool (Pool 0) from TCI 0-3 to TCI 5-9 through the MAC CE. Subsequently, the UE re-detects the RS within a certain period of time according to the updated indication signaling (that is, the MAC CE signaling used to update the TCI state information in the activated TCI state group).

In this embodiment, the UE preferably reports the second indication information to the network side device when at least one of RS 0-3 does not meet the performance requirement.

The method for detecting a reference signal provided in the embodiment of the present application may be executed by an apparatus for detecting a reference signal. In the embodiment of the present application, the method for detecting the reference signal performed by the device for detecting the reference signal is taken as an example to illustrate the device for detecting the reference signal provided in the embodiment of the present application.

Please refer to FIG. 10. The device for detecting a reference signal provided in the embodiment of the present application can be applied to a terminal. As shown in FIG. 10, the device 1000 for detecting a reference signal may include the following modules:

The first receiving module 1001 is configured to receive indication signaling, where the indication signaling carries first identification information and/or second identification information, wherein the first identification information is used to identify a transmission configuration indication TCI status pool/group , the second identification information is used to identify the target TCI state in the TCI state pool/group;

The first detection module 1002 is configured to detect a target reference signal according to the first identification information and/or the second identification information.

Optionally, the indication signaling includes downlink control information DCI signaling or medium access control element MAC CE signaling.

Optionally, the indication signaling includes any of the following:

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

Beam restoration failure reference signal BFD-RS;

New beam identification reference signal NBI-RS.

Optionally, the first detection module 1002 includes:

A first detecting unit, configured to determine the BFD-RS according to the first identification information and/or the second identification information, and detect the BFD-RS; and/or,

The second detection unit is configured to determine the NBI-RS according to the first identification information and/or the second identification information, and detect the NBI-RS.

Optionally, when the indication signaling includes the first signaling, the first detection module 1002 includes:

A first determining subunit, configured to determine a target TCI state pool/group according to the first identification information carried in the first signaling, and determine the target TCI state pool according to the second identification information carried in the first signaling The reference signal corresponding to the target TCI state in the /group is the BFD-RS and/or the NBI-RS.

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

The second determination subunit is configured to determine the target TCI state pool/group according to the first layer information if the second signaling carries the first layer information and the second layer information, and according to the second layer information determining that the reference signal corresponding to the target TCI state in the target TCI state pool/group is the BFD-RS and/or the NBI-RS;

The third determining subunit is configured to determine the target TCI state pool/group according to the first layer information in the historical second signaling if the second signaling only carries the second layer information, and according to the first layer information The Layer 2 information determines that the reference signal corresponding to the target TCI state in the target TCI state pool/group is the BFD-RS and/or the NBI-RS.

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

The fourth determination subunit is configured 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 determine the target TCI state pool/group according to the second sub-signaling The sub-signaling determines that the reference signal corresponding to the target TCI state in the target TCI state pool/group is the BFD-RS and/or the NBI-RS;

The fifth determination subunit is configured to determine the target TCI state pool/group according to the historical first sub-signaling if the combined signaling only includes the second sub-signaling, and determine the target TCI status pool/group according to the second sub-signaling The reference signal corresponding to the target TCI state in the target TCI state pool/group is the BFD-RS and/or the NBI-RS.

Optionally, the device 1000 for detecting a reference signal further includes:

The second detection module is configured to detect another TCI state pool in which the BFD-RS is located when at least one or all NBI-RSs in the target reference signal do not meet the performance requirements corresponding to beam failure recovery related detection /NBI-RS in group;

The first sending module is configured to send first indication information to the network side device when a target NBI-RS meeting the performance requirement is detected, the first indication information indicating that the target NBI-RS meets the performance requirements;

or,

The device 1000 for detecting a reference signal also includes:

The second sending module is configured to send second indication information to the network side device through the BFD-RS when at least one or all of the NBI-RS in the target reference signal does not meet the performance requirement, the 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.

Optionally, the device 1000 for detecting a reference signal further includes:

The second receiving module is configured to receive the updated indication signaling at the target time-frequency position;

A third detection module, configured to detect the updated target reference signal according to the updated indication signaling.

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

The block error rate BLER is less than or equal to the BLER threshold;

The signal-to-noise ratio SNR is greater than or equal to the SNR threshold.

The apparatus 1000 for detecting a reference signal in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component of the electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or other devices other than the terminal. Exemplarily, the terminal may include, but not limited to, the types of terminal 11 listed above, and other devices may be servers, Network Attached Storage (NAS), etc., which are not specifically limited in this embodiment of the present application.

The apparatus 1000 for detecting a reference signal provided in the embodiment of the present application can implement various processes implemented by the terminal in the method embodiment shown in FIG. 5 and achieve the same technical effect. To avoid repetition, details are not repeated here.

The method for configuring a reference signal provided in the embodiment of the present application may be executed by an apparatus for configuring a reference signal. In the embodiment of the present application, the method for configuring the reference signal performed by the device for configuring the reference signal is taken as an example to describe the device for configuring the reference signal provided in the embodiment of the present application.

Please refer to FIG. 11 , the apparatus for configuring a reference signal provided by the embodiment of the present application can be applied to network-side equipment, and the network-side equipment may include but not limited to the types of network-side equipment 12 listed above. As shown in FIG. 11, the apparatus 1100 for configuring a reference signal may include the following modules:

The determining module 1101 is configured to determine N TCI state pools/groups according to 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;

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

Optionally, the indication signaling includes any of the following:

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

Beam restoration failure reference signal BFD-RS;

New beam identification reference signal NBI-RS.

Optionally, the apparatus 1100 for configuring a reference signal further includes:

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-RS in the target reference signal does not meet beam failure recovery related detection Corresponding performance requirements, and the target NBI-RS in another TCI state pool/group where the BFD-RS is located meets the performance requirements, and the second indication information is used to indicate at least one of the target reference signals or all NBI-RS do not meet the stated performance requirements;

An updating module, configured 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 position.

Optionally, the update module includes:

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

An updating unit, configured to update the TCI status in the activated TCI status pool/group according to the first indication information, so that the updated activated TCI status pool/group includes the target NBI-RS, and generate an update The updated indication signaling carries the second identification information corresponding to the target NBI-RS.

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

The block error rate BLER is less than or equal to the BLER threshold;

The signal-to-noise ratio SNR is greater than or equal to the SNR threshold.

The apparatus 1100 for configuring a reference signal provided in the embodiment of the present application can implement various processes implemented by the network side device in the method embodiment shown in FIG. 9 and achieve the same technical effect. To avoid repetition, details are not repeated here.

Optionally, as shown in FIG. 12 , this embodiment of the present application also provides a communication device 1200, including a processor 1201 and a memory 1202, and the memory 1202 stores programs or instructions that can run on the processor 1201, for example When the communication device 1200 is a terminal, when the program or instruction is executed by the processor 1201, each step of the above-mentioned method embodiment for detecting a reference signal can be implemented, and the same technical effect can be achieved. When the communication device 1200 is a network-side device, when the program or instruction is executed by the processor 1201, each step of the above-mentioned method embodiment for configuring a reference signal can be implemented, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.

An embodiment of the present application also provides a terminal, including a processor and a communication interface, where the communication interface is used to receive indication signaling, and the indication signaling 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; the communication interface is also used to The identification information and/or the second identification information are used to detect the target reference signal. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect. Specifically, FIG. 13 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.

The terminal 1300 includes, but is not limited to: a radio frequency unit 1301, a network module 1302, an audio output unit 1303, an input unit 1304, a sensor 1305, a display unit 1306, a user input unit 1307, an interface unit 1308, a memory 1309, and a processor 1310. At least some parts.

Those skilled in the art can understand that the terminal 1300 can also include a power supply (such as a battery) for supplying power to various components, and the power supply can be logically connected to the processor 1310 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions. The terminal structure shown in FIG. 13 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine some components, or arrange different components, which will not be repeated here.

It should be understood that, in the embodiment of the present application, the input unit 1304 may include a graphics processing unit (Graphics Processing Unit, GPU) 13041 and a microphone 13042, and the graphics processor 13041 can be used by the image capture device ( Such as the image data of the still picture or video obtained by the camera) for processing. The display unit 1306 may include a display panel 13061, and the display panel 13061 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 at least one of a touch panel 13071 and other input devices 13072 . Touch panel 13071, also called touch screen. The touch panel 13071 may include two parts, 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, switch buttons, etc.), trackballs, mice, and joysticks, which will not be repeated here.

In the embodiment of the present application, the radio frequency unit 1301 may transmit the downlink data from the network side device to the processor 1310 for processing after receiving it; in addition, the radio frequency unit 1301 may send uplink data to the network side device. Generally, the radio frequency unit 1301 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 1309 can be used to store software programs or instructions as well as various data. The memory 1309 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playing function, image playback function, etc.), etc. Furthermore, memory 1309 can include volatile memory or nonvolatile memory, or, memory 1309 can include both volatile and nonvolatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash. Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synch link DRAM , SLDRAM) and Direct Memory Bus Random Access Memory (Direct Rambus RAM, DRRAM). The memory 1309 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

The processor 1310 may include one or more processing units; optionally, the processor 1310 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 1310 .

Wherein, the radio frequency unit 1301 is configured to receive indication signaling, where the indication signaling 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 , the second identification information is used to identify the target TCI state in the TCI state pool/group;

The radio frequency unit 1301 is further configured to detect a target reference signal according to the first identification information and/or the second identification information.

Optionally, the indication signaling includes any of the following:

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

Beam restoration failure reference signal BFD-RS;

New beam identification reference signal NBI-RS.

Optionally, the detecting the target reference signal according to the first identification information and/or the second identification information performed by the radio frequency unit 1301 includes:

The processor 1310 is configured to determine the BFD-RS according to the first identification information and/or the second identification information, and control the radio frequency unit 1301 to detect the BFD-RS; and/or,

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

Optionally, in a case where the indication signaling includes the first signaling, the determining the BFD-RS and/or the BFD-RS and/or the The NBI-RS, including:

The processor 1310 determines the target TCI state pool/group according to the first identification information carried in the first signaling, and determines the target TCI state pool/group according to the second identification information carried in the first signaling. The reference signal corresponding to the TCI state is the BFD-RS and/or the NBI-RS.

Optionally, in a case where the indication signaling includes the second signaling, the determining the BFD-RS and/or the BFD-RS and/or the The above NBI-RS, including at least one of the following:

If the second signaling carries layer-1 information and layer-2 information, the processor 1310 determines the target TCI state pool/group according to the layer-1 information, and determines the target TCI state pool/group according to the layer-2 information. The reference signal corresponding to the target TCI state in the state pool/group is the BFD-RS and/or the NBI-RS;

If the second signaling only carries the layer-2 information, the processor 1310 determines the target TCI state pool/group according to the layer-1 information in the historical second signaling, and determines the target TCI state pool/group according to the layer-2 information. The reference signal corresponding to the target TCI state in the target TCI state pool/group is the BFD-RS and/or the NBI-RS.

Optionally, when the indication signaling includes combined signaling, the determining the BFD-RS and/or the BFD-RS and/or the NBI-RS, including at least one of the following:

If the combined signaling includes the first sub-signaling and the second sub-signaling, the processor 1310 determines the target TCI state pool/group according to the first sub-signaling, and determines the target TCI state pool/group according to the second sub-signaling. The reference signal corresponding to the target TCI state in the target TCI state pool/group is the BFD-RS and/or the NBI-RS;

If the combined signaling only includes the second sub-signaling, the processor 1310 determines the target TCI state pool/group according to the historical first sub-signaling, and determines the target TCI state according to the second sub-signaling The reference signal corresponding to the target TCI state in the pool/group is the BFD-RS and/or the NBI-RS.

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

In the case that at least one or all NBI-RSs in the target reference signal do not meet the performance requirements corresponding to beam failure recovery related detection, detect the NBI-RS in another TCI state pool/group where the BFD-RS is located , and when a target NBI-RS meeting the performance requirement is detected, sending first indication information to the network side device, where the first indication information indicates that the target NBI-RS meets the performance requirement; or,

When at least one or all of the NBI-RS in the target reference signal does not meet the performance requirement, send second indication information to the network side device through the BFD-RS, where the second indication information is used to indicate At least one or all of the NBI-RSs in the target reference signal do not meet the performance requirement.

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:

receiving the updated indication signaling at the target time-frequency position;

Detect the updated target reference signal according to the updated indication signaling.

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

The block error rate BLER is less than or equal to the BLER threshold;

The signal-to-noise ratio SNR is greater than or equal to the SNR threshold.

The terminal 1300 provided in this embodiment of the present application can implement the method executed by each module as shown in FIG. 10 , and can achieve the same beneficial effect. To avoid repetition, details are not repeated here.

The embodiment of the present application also provides a network side device, including a processor and a communication interface, the processor is used to determine 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 communication interface is used to send indication signaling, where the indication signaling carries first identification information and/or second identification information, where the first identification information is used to identify the TCI state A pool/group, where the second identification information is used to identify a target TCI state in the TCI state pool/group.

The network-side device embodiment corresponds to the above-mentioned network-side device method embodiment, and each implementation process and implementation mode of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.

Specifically, the embodiment of the present application also provides a network side device. As shown in FIG. 14 , the network side device 1400 includes: an antenna 1401 , a radio frequency device 1402 , a baseband device 1403 , a processor 1404 and a memory 1405 . The antenna 1401 is connected to the radio frequency device 1402 . In the uplink direction, the radio frequency device 1402 receives information through the antenna 1401, and sends the received information to the baseband device 1403 for processing. In the downlink direction, the baseband device 1403 processes the information to be sent and sends it to the radio frequency device 1402 , and the radio frequency device 1402 processes the received information and sends it out through the antenna 1401 .

The method performed by the network side device in the above embodiments may be implemented in the baseband device 1403, where the baseband device 1403 includes a baseband processor.

The baseband device 1403 may include at least one baseband board, for example, a plurality of chips are arranged on the baseband board, as shown in FIG. The program executes the network device operations shown in the above method embodiments.

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

Specifically, the network side device 1400 in this embodiment of the present invention further includes: instructions or programs stored in the memory 1405 and operable on the processor 1404, and the processor 1404 calls the instructions or programs in the memory 1405 to execute the various programs shown in FIG. The method of module execution achieves the same technical effect, so in order to avoid repetition, it is not repeated here.

The embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by the processor, each process of the method embodiment as shown in FIG. 5 or FIG. 9 is implemented. , and can achieve the same technical effect, in order to avoid repetition, it will not be repeated here.

Wherein, the processor is the processor in the terminal described in the foregoing embodiments. The readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.

The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the process shown in Figure 5 or Figure 9. Each process of the method embodiment is shown, and the same technical effect can be achieved, so in order to avoid repetition, details are not repeated here.

It should be understood that the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.

The embodiment of the present application further provides a computer program/program product, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the process shown in Figure 5 or Figure 9. Each process of the method embodiment shown can achieve the same technical effect, so in order to avoid repetition, details are not repeated here.

The embodiment of the present application also provides a communication system, including: a terminal and a network-side device, 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 above-mentioned steps Steps in a method of configuring a reference signal.

The embodiment of the present application also provides a communication device configured to execute each process of the method embodiment shown in FIG. 5 or FIG. 9 and achieve the same technical effect. To avoid repetition, details are not repeated here.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. In addition, it should be pointed out that the scope of the method and apparatus in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is more best implementation. Based on such an understanding, the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims

A method of detecting a reference signal, comprising:

The terminal receives indication signaling, where the indication signaling carries first identification information and/or second identification information, where the first identification information is used to identify a transmission configuration indication TCI state pool/group, and the second identification information Used to identify the target TCI state in the TCI state pool/group;

The terminal detects a target reference signal according to the first identification information and/or the second identification information.
The method according to claim 1, wherein the indication signaling includes downlink control information DCI signaling or media access control element MAC CE signaling.
The method according to claim 1, wherein the indication signaling includes any of the following:

first signaling carrying single-layer information, where the single-layer information includes the first identification information and/or second identification information;

second signaling carrying layer-1 information and/or layer-2 information, wherein the layer-1 information includes the first identification information, and the layer-2 information includes the second identification information;

Combined signaling comprising 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 .
The method according to any one of claims 1 to 3, wherein the target reference signal comprises at least one of the following:

Beam restoration failure reference signal BFD-RS;

New beam identification reference signal NBI-RS.
The method according to claim 4, wherein the terminal detects a target reference signal according to the first identification information and/or the second identification information, comprising:

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.
The method according to claim 5, wherein, when the indication signaling includes the first signaling, the terminal determines the BFD-RS and /or the NBI-RS, including:

The terminal determines a target TCI state pool/group according to the first identification information carried in the first signaling, and determines a target in the target TCI state pool/group according to the second identification information carried in the first signaling The reference signal corresponding to the TCI state is the BFD-RS and/or the NBI-RS.
The method according to claim 5, wherein, when the indication signaling includes the second signaling, the terminal determines the BFD-RS and /or the NBI-RS, including at least one of the following:

If the second signaling carries layer-1 information and layer-2 information, the terminal determines the target TCI state pool/group according to the layer-1 information, and determines the target TCI according to the layer-2 information The reference signal corresponding to the target TCI state in the state pool/group is the BFD-RS and/or the NBI-RS;

If the second signaling only carries the layer-2 information, the terminal determines the target TCI state pool/group according to the layer-1 information in the historical second signaling, and determines the target TCI state pool/group according to the layer-2 information. The reference signal corresponding to the target TCI state in the target TCI state pool/group is the BFD-RS and/or the NBI-RS.
The method according to claim 5, wherein, when the indication signaling includes combined signaling, the terminal determines the BFD-RS and/or according to the first identification information and/or second identification information or the NBI-RS, including at least one of the following:

If the combined signaling includes the first sub-signaling and the second sub-signaling, the terminal determines the target TCI state pool/group according to the first sub-signaling, and determines the target TCI status pool/group according to the second sub-signaling. The reference signal corresponding to the target TCI state in the target TCI state pool/group is the BFD-RS and/or the NBI-RS;

If the combined signaling only includes the second sub-signalling, the terminal determines the target TCI state pool/group according to the historical first sub-signalling, and determines the target TCI state according to the second sub-signalling The reference signal corresponding to the target TCI state in the pool/group is the BFD-RS and/or the NBI-RS.
The method according to claim 5, wherein the method further comprises:

In the case that at least one or all NBI-RSs in the target reference signal do not meet the performance requirements corresponding to beam failure recovery related detection, the terminal detects the BFD-RS in another TCI state pool/group where the BFD-RS is located NBI-RS, and when a target NBI-RS meeting the performance requirement is detected, send first indication information to the network side device, the first indication information indicating that the target NBI-RS meets the performance requirement ;or,

When at least one or all of the NBI-RS in the target reference signal does not meet the performance requirement, the terminal sends second indication information to the network side device through the BFD-RS, the second indication information It is used to indicate that at least one or all NBI-RSs in the target reference signal do not meet the performance requirement.
The method according to claim 9, wherein, after the terminal sends the first indication information or the second indication information to the network side device, the method further comprises:

The terminal receives the updated indication signaling at the target time-frequency position;

The terminal detects the updated target reference signal according to the updated indication signaling.
The method of claim 9, wherein the performance requirements include at least one of the following:

The reference signal received power RSRP is greater than or equal to the RSRP threshold;

The signal-to-interference-plus-noise ratio SINR is greater than or equal to the SINR threshold;

The block error rate BLER is less than or equal to the BLER threshold;

The signal-to-noise ratio SNR is greater than or equal to the SNR threshold.
A device for detecting a reference signal is applied to a terminal, and the device includes:

The first receiving module is configured to receive indication signaling, where the indication signaling carries 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, The second identification information is used to identify the target TCI state in the TCI state pool/group;

The first detection module is configured to detect the target reference signal according to the first identification information and/or the second identification information.
The apparatus according to claim 12, wherein the indication signaling includes downlink control information (DCI) signaling or media access control element (MAC) signaling.
The device according to claim 12, wherein the indication signaling includes any of the following:

first signaling carrying single-layer information, where the single-layer information includes the first identification information and/or second identification information;

second signaling carrying layer-1 information and/or layer-2 information, wherein the layer-1 information includes the first identification information, and the layer-2 information includes the second identification information;

Combined signaling comprising 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 .
The apparatus according to any one of claims 12 to 14, wherein the target reference signal comprises at least one of the following:

Beam restoration failure reference signal BFD-RS;

New beam identification reference signal NBI-RS.
The device according to claim 15, wherein the first detection module comprises:

A first detecting unit, configured to determine the BFD-RS according to the first identification information and/or the second identification information, and detect the BFD-RS; and/or,

The second detection unit is configured to determine the NBI-RS according to the first identification information and/or the second identification information, and detect the NBI-RS.
The device according to claim 16, wherein, when the indication signaling includes the first signaling, the first detection unit includes:

A first determining subunit, configured to determine a target TCI state pool/group according to the first identification information carried by the first signaling, and determine the target TCI state pool according to the second identification information carried by the first signaling The reference signal corresponding to the target TCI state in the /group is the BFD-RS and/or the NBI-RS.
The device according to claim 16, wherein, when the indication signaling includes the second signaling, the first detection unit includes at least one of the following:

The second determination subunit is configured to determine the target TCI state pool/group according to the first layer information if the second signaling carries the first layer information and the second layer information, and according to the second layer information determining that the reference signal corresponding to the target TCI state in the target TCI state pool/group is the BFD-RS and/or the NBI-RS;

The third determining subunit is configured to determine the target TCI state pool/group according to the first layer information in the historical second signaling if the second signaling only carries the second layer information, and according to the first layer information The Layer 2 information determines that the reference signal corresponding to the target TCI state in the target TCI state pool/group is the BFD-RS and/or the NBI-RS.
The device according to claim 16, wherein, when the indication signaling includes combined signaling, the first detection unit includes at least one of the following:

The fourth determining subunit is configured 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 determine the target TCI state pool/group according to the second sub-signaling The sub-signaling determines that the reference signal corresponding to the target TCI state in the target TCI state pool/group is the BFD-RS and/or the NBI-RS;

The fifth determination subunit is configured to determine the target TCI state pool/group according to the historical first sub-signaling if the combined signaling only includes the second sub-signaling, and determine the target TCI status pool/group according to the second sub-signaling The reference signal corresponding to the target TCI state in the target TCI state pool/group is the BFD-RS and/or the NBI-RS.
The apparatus of claim 16, further comprising:

The second detection module is configured to detect another TCI state pool in which the BFD-RS is located when at least one or all NBI-RSs in the target reference signal do not meet the performance requirements corresponding to beam failure recovery related detection /NBI-RS in group;

The first sending module is configured to send first indication information to the network side device when a target NBI-RS meeting the performance requirement is detected, the first indication information indicating that the target NBI-RS meets the performance requirements;

or,

The device also includes:

The second sending module is configured to send second indication information to the network side device through the BFD-RS when at least one or all of the NBI-RS in the target reference signal does not meet the performance requirement, the 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 apparatus according to claim 20, further comprising:

The second receiving module is configured to receive the updated indication signaling at the target time-frequency position;

A third detection module, configured to detect the updated target reference signal according to the updated indication signaling.
The apparatus of claim 20, wherein the performance requirements include at least one of the following:

The reference signal received power RSRP is greater than or equal to the RSRP threshold;

The signal-to-interference-plus-noise ratio SINR is greater than or equal to the SINR threshold;

The block error rate BLER is less than or equal to the BLER threshold;

The signal-to-noise ratio SNR is greater than or equal to the SNR threshold.
A method of configuring a reference signal, the method comprising:

The 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, where the indication signaling carries first identification information and/or second identification information, where the first identification information is used to identify a TCI state pool/group, and the second The second identification information is used to identify the target TCI state in the TCI state pool/group.
The method according to claim 23, wherein the indication signaling includes downlink control information DCI signaling or media access control element MAC CE signaling.
The method according to claim 23, wherein the indication signaling includes any of the following:

first signaling carrying single-layer information, where the single-layer information includes the first identification information and/or second identification information;

second signaling carrying layer-1 information and/or layer-2 information, wherein the layer-1 information includes the first identification information, and the layer-2 information includes the second identification information;

Combined signaling comprising 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 .
The method according to any one of claims 23 to 25, wherein the target reference signal comprises at least one of the following:

Beam restoration failure reference signal BFD-RS;

New beam identification reference signal NBI-RS.
The method according to claim 26, wherein said method further comprises:

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

The network side device updates the indication signaling according to the first indication information or the second indication message, and sends the updated indication signaling at the target time-frequency position.
The method according to claim 27, wherein the network side device updates indication signaling according to the first indication information, comprising:

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 an updated indication signaling, and the updated The indication signaling carries the first identification information corresponding to the TCI state pool/group where the target NBI-RS is located and the second identification information of the TCI state corresponding to 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 an updated The updated indication signaling carries the second identification information corresponding to the target NBI-RS.
The method of claim 27, wherein the performance requirements include at least one of the following:

The reference signal received power RSRP is greater than or equal to the RSRP threshold;

The signal-to-interference-plus-noise ratio SINR is greater than or equal to the SINR threshold;

The block error rate BLER is less than or equal to the BLER threshold;

The signal-to-noise ratio SNR is greater than or equal to the SNR threshold.
A device for configuring a reference signal is applied to a network side device, the device comprising:

A determining module, configured to determine N TCI state pools/groups according to 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;

A third sending module, configured to send indication signaling, where the indication signaling carries first identification information and/or second identification information, where the first identification information is used to identify a TCI state pool/group, the The second identification information is used to identify the target TCI state in the TCI state pool/group.
The apparatus according to claim 30, wherein the indication signaling includes downlink control information (DCI) signaling or media access control element (MAC) signaling.
The device according to claim 30, wherein the indication signaling includes any of the following:

first signaling carrying single-layer information, where the single-layer information includes the first identification information and/or second identification information;

second signaling carrying layer-1 information and/or layer-2 information, wherein the layer-1 information includes the first identification information, and the layer-2 information includes the second identification information;

Combined signaling comprising 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 .
The apparatus according to any one of claims 30 to 32, wherein the target reference signal comprises at least one of the following:

Beam restoration failure reference signal BFD-RS;

New beam identification reference signal NBI-RS.
The apparatus of claim 33, 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-RS in the target reference signal does not meet beam failure recovery related detection Corresponding performance requirements, and the target NBI-RS in another TCI state pool/group where the BFD-RS is located meets the performance requirements, and the second indication information is used to indicate at least one of the target reference signals or all NBI-RS do not meet the stated performance requirements;

An updating module, configured 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 position.
The device according to claim 34, wherein the updating module comprises:

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

An updating unit, configured to update the TCI status in the activated TCI status pool/group according to the first indication information, so that the updated activated TCI status pool/group includes the target NBI-RS, and generate an update The updated indication signaling carries the second identification information corresponding to the target NBI-RS.
The apparatus of claim 34, wherein the performance requirements include at least one of the following:

The reference signal received power RSRP is greater than or equal to the RSRP threshold;

The signal-to-interference-plus-noise ratio SINR is greater than or equal to the SINR threshold;

The block error rate BLER is less than or equal to the BLER threshold;

The signal-to-noise ratio SNR is greater than or equal to the SNR threshold.
A terminal, comprising a processor and a memory, wherein the memory stores programs or instructions that can run on the processor, and when the programs or instructions are executed by the processor, any of claims 1 to 11 can be implemented. A step in the method for detecting a reference signal.
A network side device, comprising a processor and a memory, wherein the memory stores programs or instructions that can run on the processor, and when the programs or instructions are executed by the processor, claims 23 to 29 are implemented The steps of any one of the methods for configuring reference signals.
A readable storage medium, on which a program or an instruction is stored, wherein, when the program or instruction is executed by a processor, the method for detecting a reference signal according to any one of claims 1 to 11 is implemented steps, or implement the steps of the method for configuring reference signals as claimed in any one of claims 23 to 29.