Quasi-co-located reference signal determination method, communication node and storage medium

Abstract

The embodiment of the invention discloses a method for determining a quasi-co-located reference signal, a communication node and a storage medium. The method comprises the following steps: determining a second type of frequency domain bandwidth corresponding to a first type of frequency domain bandwidth; sending information under the condition that a beam failure event is detected according to the first type reference signal of the first type frequency domain bandwidth; wherein the information comprises reference signal index information of a first type of reference signals and frequency domain bandwidth index information of the first type of frequency domain bandwidths; and acquiring the quasi co-location reference signal of the downlink signal in the second type of frequency domain bandwidth according to the information from a predetermined moment.

Description

[0001] This application is a divisional application of the invention patent application with application number 201910245684.4 filed on March 28, 2019, and invention name “A beam failure recovery method and device”. Technical Field

[0002] The embodiments of the present invention relate to but are not limited to communication technology, and in particular to a method for determining a quasi-colocated reference signal, a communication node, and a storage medium. Background Art

[0003] NR introduces a beam failure recovery process for special cells (Spcells), which solves the beam failure recovery problem of Spcells. In the case of high-frequency communication, when all control channel resources of the base station cannot reach the terminal, the terminal promptly informs the base station of this information and informs the base station of the new beam selected by the terminal. The terminal automatically communicates with the base station based on the selected new beam. The communication between the base station and the terminal can be quickly restored without the terminal re-accessing the base station.

[0004] If only the beam failure recovery process is performed for Spcell, when the beam correlation between the secondary cell (Scell) and the primary cell (Pcell) is poor, for example, the beam of the Pcell can communicate, but the beam of the Scell ​​cannot communicate, such as when the Pcell is low frequency and the Scell ​​is high frequency, the link of the Scell ​​cannot be restored in time, affecting the system performance. Therefore, a beam failure recovery process for the Scell ​​is required. When both the Pcell and the Scell ​​need to perform the beam failure recovery process, how to deal with the collision problem is a problem to be solved in this paper.

[0005] How to quickly restore the link performance of the carrier component (CC, ComponentCarrier) or bandwidth part (BWP, BandWidth Part) that is not configured with the beam failure detection reference signal is another problem to be solved in this paper. Summary of the invention

[0006] An embodiment of the present invention provides a method for determining a quasi-colocated reference signal, a communication node, and a storage medium, which can implement a beam failure recovery process of N frequency domain bandwidths when time domain resources corresponding to the beam failure recovery process of N frequency domain bandwidths collide.

[0007] An embodiment of the present invention provides a beam failure recovery method, including:

[0008] When the intersection of the time domain resources corresponding to the beam failure recovery process of N frequency domain bandwidths is not empty, perform any of the following:

[0009] Selecting a beam failure recovery process of a frequency domain bandwidth from among the beam failure recovery processes of N frequency domain bandwidths, performing the beam failure recovery process of the selected frequency domain bandwidth, and terminating or pausing the beam failure recovery process of the unselected frequency domain bandwidths;

[0010] Combining beam failure recovery processes of N frequency domain bandwidths into one beam failure recovery process, and performing the combined beam failure recovery process;

[0011] Perform beam failure recovery processes of N frequency domain bandwidths in parallel;

[0012] Wherein, N is a positive integer greater than 1.

[0013] An embodiment of the present invention provides a beam failure recovery device, including:

[0014] The first beam failure recovery module is used to perform any of the following when the intersection of time domain resources corresponding to the beam failure recovery process of N frequency domain bandwidths is not empty:

[0015] Selecting a beam failure recovery process of a frequency domain bandwidth from among the beam failure recovery processes of N frequency domain bandwidths, performing the beam failure recovery process of the selected frequency domain bandwidth, and terminating or pausing the beam failure recovery process of the unselected frequency domain bandwidths;

[0016] Combining beam failure recovery processes of N frequency domain bandwidths into one beam failure recovery process, and performing the combined beam failure recovery process;

[0017] Perform beam failure recovery processes of N frequency domain bandwidths in parallel;

[0018] Wherein, N is a positive integer greater than 1.

[0019] An embodiment of the present invention proposes a beam failure recovery device, including a processor and a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, and when the instructions are executed by the processor, any of the above-mentioned beam failure recovery methods is implemented.

[0020] An embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the computer program implements the steps of any of the above-mentioned beam failure recovery methods.

[0021] The embodiment of the present invention includes: when the intersection of time domain resources corresponding to beam failure recovery processes of N frequency domain bandwidths is not empty, any one of the following is performed: selecting a beam failure recovery process of one frequency domain bandwidth among the beam failure recovery processes of N frequency domain bandwidths, performing the beam failure recovery process of the selected frequency domain bandwidth, and terminating or pausing the beam failure recovery process of the unselected frequency domain bandwidth; merging the beam failure recovery processes of N frequency domain bandwidths into one beam failure recovery process, and performing the merged beam failure recovery process; performing the beam failure recovery processes of N frequency domain bandwidths in parallel; wherein N is a positive integer greater than 1. The embodiment of the present invention implements the beam failure recovery processes of N frequency domain bandwidths when the time domain resources corresponding to the beam failure recovery processes of N frequency domain bandwidths collide, quickly recovers the communication links of multiple frequency domain bandwidths, quickly recovers the communication system, and reduces the complexity of the terminal.

[0022] An embodiment of the present invention provides a method for determining beam failure recovery parameters, so that when there are multiple frequency domain bandwidths each having a corresponding beam failure recovery process, the beam failure recovery process corresponding to the multiple frequency domain bandwidths can be effectively implemented.

[0023] An embodiment of the present invention provides a method for determining beam failure recovery parameters, comprising:

[0024] At least one of the following information is determined according to the signaling information and / or the predetermined rules: At least one of the following information is determined according to the signaling information and / or the predetermined rules: the correspondence between a beam failure request resource and the first information of E frequency domain bandwidths; the conditions that need to be met for the beam failure request resources of G frequency domain bandwidths; the correspondence between a first information and H type resources; the sending opportunity of the first information corresponding to the first frequency domain bandwidth in the second frequency domain bandwidth; beam failure recovery parameter information when a frequency domain bandwidth includes beam failure recovery resources of F frequency domain bandwidths; wherein E, F, G, H are positive integers greater than 1.

[0025] An embodiment of the present invention provides a device for determining beam failure recovery parameters, including:

[0026] An information determination module is used to determine at least one of the following information according to signaling information and / or predetermined rules: a correspondence between a beam failure request resource and first information of E frequency domain bandwidths; conditions that need to be met for beam failure request resources of G frequency domain bandwidths; a correspondence between a first information and H-type resources; a sending opportunity of the first information corresponding to the first frequency domain bandwidth in the second frequency domain bandwidth; beam failure recovery parameter information when a frequency domain bandwidth includes beam failure recovery resources of F frequency domain bandwidths; wherein E, F, G, and H are positive integers greater than 1.

[0027] An embodiment of the present invention provides a device for determining beam failure recovery parameters, including a processor and a computer-readable storage medium, wherein the computer-readable storage medium stores instructions. When the instructions are executed by the processor, any of the above-mentioned methods for determining beam failure recovery parameters is implemented.

[0028] An embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the computer program implements the steps of any of the above-mentioned methods for determining beam failure recovery parameters.

[0029] The embodiment of the present invention includes: determining at least one of the following information according to signaling information and / or predetermined rules: the correspondence between a beam failure request resource and the first information of E frequency domain bandwidths; the conditions that need to be met by the beam failure request resources of G frequency domain bandwidths; the correspondence between a first information and H type resources; the opportunity for the first information corresponding to the first frequency domain bandwidth to be sent in the second frequency domain bandwidth; beam failure recovery parameter information when a frequency domain bandwidth includes beam failure recovery resources of F frequency domain bandwidths; wherein E, F, G, H are positive integers greater than 1; and performing a beam failure recovery process according to the determined information. The embodiment of the present invention implements a beam failure recovery process for multiple frequency domain bandwidths based on the above information, so that the operations of both communication nodes in which a beam failure event occurs are unified, thereby reducing the power consumption of the communication nodes.

[0030] The embodiment of the present invention proposes a method for determining a quasi-co-site reference signal, which can restore the link performance of the frequency domain bandwidth without configuring a beam failure detection reference signal.

[0031] An embodiment of the present invention proposes a method for determining a quasi-co-site reference signal, so that the beam failure recovery process of only one frequency domain bandwidth is maintained among multiple frequency domain bandwidths. When a beam failure event occurs, the beams of channels and / or signals in the multiple frequency domain bandwidths are automatically updated or activated.

[0032] An embodiment of the present invention provides a method for determining a quasi co-location reference signal, including:

[0033] Determine a second type of frequency domain bandwidth corresponding to the first type of frequency domain bandwidth;

[0034] When a beam failure event is detected according to a first-type reference signal of a first-type frequency domain bandwidth, third information is sent; wherein the third information includes at least one of the following information: reference signal index information of a second-type reference signal, and frequency domain bandwidth index information of the first-type frequency domain bandwidth;

[0035] Starting from the fourth predetermined moment, the quasi-co-site reference signal of the downlink signal in the second type of frequency domain bandwidth is acquired or updated according to the third information and / or the predetermined rule, and / or, starting from the fifth predetermined moment, the spatial transmit filter of the uplink signal in the second type of frequency domain bandwidth is acquired or updated according to the third information and / or the predetermined rule.

[0036] An embodiment of the present invention provides a device for determining a quasi co-location reference signal, including:

[0037] A first determining module, used to determine a second type of frequency domain bandwidth corresponding to the first type of frequency domain bandwidth;

[0038] A sending module, configured to send third information when a beam failure event is detected according to a first-type reference signal of a first-type frequency domain bandwidth; wherein the third information includes at least one of the following information: reference signal index information of the second-type reference signal, frequency domain bandwidth class index information of the first-type frequency domain bandwidth;

[0039] The second determination module is used to obtain or update the quasi-co-site reference signal of the downlink signal in the second-type frequency domain bandwidth according to the third information and / or predetermined rules starting from the fourth predetermined moment, and / or, starting from the fifth predetermined moment, the spatial transmit filter of the uplink signal in the second-type frequency domain bandwidth is obtained or updated according to the third information and / or predetermined rules.

[0040] An embodiment of the present invention proposes a device for determining a quasi-co-site reference signal, including a processor and a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, and when the instructions are executed by the processor, any of the above-mentioned methods for determining a quasi-co-site reference signal is implemented.

[0041] An embodiment of the present invention provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of any of the above-mentioned methods for determining a quasi-co-site reference signal are implemented.

[0042] The embodiment of the present invention includes: determining the second type of frequency domain bandwidth corresponding to the first type of frequency domain bandwidth; sending third information when a beam failure event is detected according to the first type of reference signal of the first type of frequency domain bandwidth; wherein the third information includes at least one of the following information: reference signal index information of the second type of reference signal, frequency domain bandwidth index information of the first type of frequency domain bandwidth; starting from the fourth predetermined time, the quasi-co-site reference signal of the downlink signal in the second type of frequency domain bandwidth is acquired or updated according to the third information and / or the predetermined rule, and / or, starting from the fifth predetermined time, the spatial transmission filter of the uplink signal in the second type of frequency domain bandwidth is acquired or updated according to the third information and / or the predetermined rule. The embodiment of the present invention realizes the recovery of the link performance of the second type of frequency domain bandwidth through the first type of frequency domain bandwidth corresponding to the second type of frequency domain bandwidth, and only maintains the beam failure recovery process of one of the frequency domain bandwidths in multiple frequency domain bandwidths. After the beam failure event occurs, the beams of the channels and / or signals in the multiple frequency domain bandwidths are automatically updated or activated, which reduces the power consumption, reduces the overhead of the beam update signaling, and increases the probability of link performance recovery.

[0043] Other features and advantages of the embodiments of the present invention will be described in the following description, and partly become apparent from the description, or be understood by implementing the embodiments of the present invention. The purposes and other advantages of the embodiments of the present invention can be achieved and obtained by the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The accompanying drawings are used to provide a further understanding of the technical solutions of the embodiments of the present invention and constitute a part of the specification. Together with the embodiments of the embodiments of the present invention, they are used to explain the technical solutions of the embodiments of the present invention and do not constitute a limitation on the technical solutions of the embodiments of the present invention.

[0045] Figure 1 A flowchart of a beam failure recovery method proposed by an embodiment of the present invention;

[0046] Figure 2 It is a schematic diagram of a beam failure recovery process of two CCs performed in parallel according to an embodiment of the present invention;

[0047] Figure 3 A schematic diagram of selecting a beam failure request resource from a plurality of beam failure request resources whose intersection of time domain resources is not empty to send first information when beam failure recovery processes of multiple CCs are performed in parallel in an embodiment of the present invention;

[0048] Figure 4A schematic diagram of dividing a union of beam failure recovery resources of multiple CCs whose intersections of occupied time domain resources are not empty into M beam failure request resources in time division to send first information of M frequency domain bandwidths when beam failure recovery processes of multiple CCs are performed in parallel in an embodiment of the present invention;

[0049] Figure 5 A schematic diagram of an embodiment of the present invention in which, when beam failure recovery processes of M frequency domain bandwidths are merged into one beam failure recovery process, a beam is selected from a set of beam failure request resources of M frequency domain bandwidths as a failure request resource to send merged beam failure request information;

[0050] Figure 6 A schematic diagram of first information corresponding to a CC set corresponding to a beam failure request resource when beam failure recovery processes of multiple CCs are combined into one beam failure recovery process in an embodiment of the present invention;

[0051] Figure 7 A schematic diagram of first information corresponding to one CC corresponding to each beam failure request resource when beam failure recovery processes of multiple CCs are performed in parallel according to an embodiment of the present invention;

[0052] Figure 8 Schematic diagram of a configuration method for beam failure request parameters corresponding to F CCs in a CC according to an embodiment of the present invention Figure 1 ;

[0053] Fig. 9 Schematic diagram of a configuration method for beam failure request parameters corresponding to F CCs in one CC according to an embodiment of the present invention Figure 2 ;

[0054] Fig.10 Schematic diagram of a configuration method for beam failure request parameters corresponding to F CCs in a CC according to an embodiment of the present invention Figure 3 ;

[0055] Fig.11 A flowchart of a method for determining a quasi co-location reference signal according to another embodiment of the present invention;

[0056] Fig.12 A schematic diagram of the structure of a quasi-co-site reference signal device provided by another embodiment of the present invention. DETAILED DESCRIPTION

[0057] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other at will.

[0058] The steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions. Also, although a logical sequence is shown in the flowchart, in some cases, the steps shown or described can be performed in a sequence different from that shown here.

[0059] In the related technology, NR introduces a beam failure recovery process for special cells (Spcell, Special cell), where in multiple connections, SpCell is the PCell of the Master Cell Group (MCG) or the Primary Secondary Cell (PSCell) of the Secondary Cell Group (SCG); in carrier aggregation and single connection, SpCell is PCell. The beam failure recovery process of Pcell includes the following aspects:

[0060] Step 1: beam failure detection. The terminal obtains a beam failure detection reference signal set through the signaling information and / or the quasi-co-location reference signal of the control channel resource sent by the base station; the terminal obtains whether a beam failure event has occurred by detecting the link performance of the beam failure detection reference signal in the beam failure detection reference signal set (also referred to as the q0 reference signal set). For example, when the link performance of all beam failure detection reference signals in the beam failure detection reference signal set is lower than a predetermined value for a number of times reaching a predetermined value (i.e., the current value of the beam failure detection counter reaches a predetermined value), it is determined that a beam failure event has occurred.

[0061] Step 2: Selection of a new beam. When a beam failure event is detected, the terminal selects a reference signal q from the candidate reference signal set. new ; Among them, the selected reference signal q new The link performance is higher than the preset value.

[0062] Step 3: Send beam failure request information. After detecting a beam failure event, the terminal starts a random access process, starts a beam failure recovery timer, and sends the preamble corresponding to the reference signal selected in step 2 according to the correspondence between the preamble included in the signaling information sent by the base station and the reference signal in the candidate reference signal set.

[0063] Step 4, monitor beam failure response information. After sending the preamble, start the beam failure response information monitoring timer to monitor the response information of the base station. The response information includes the downlink control information (DCI) scrambled by the cell-radio network temporary identifier (C-RNTI, Cell Radio Network Temporary Identifier) ​​or modulation and coding strategy-cell-radio network temporary identifier (MCS-C-RNTI, Modulation and Coding Scheme CellRadio Network Temporary Identifier) ​​sent by the base station in the beam failure recovery search space. When the response information is detected, it is considered that the beam failure request information is sent successfully, the beam failure recovery process is successfully completed, and the beam failure recovery timer and the beam failure response information monitoring timer are stopped. Otherwise, when the response information of the base station is not detected within the predetermined time (that is, when the beam failure response information monitoring timer times out), return to step 2. When the beam failure recovery timer expires, or the number of times the beam failure request information is sent exceeds the predetermined threshold, it is considered that the beam failure request information is not sent successfully, and an indication information that the beam failure request information is not sent successfully is sent to the upper layer.

[0064] Operation 1: After the beam failure request information is sent and before the reconfiguration or activation information of the quasi-co-location reference signal of the physical downlink control channel (PDCCH) is received, the demodulation reference signal of the control channel in the beam failure recovery search space and the demodulation reference signal of the data channel scheduled by the control channel in the beam failure recovery search space are compared with the reference signal q corresponding to the latest sent beam failure request information. new A quasi-co-location (QCL) relationship is satisfied between them.

[0065] Step 5: From the scheduled time after successfully receiving the response information from the base station to the time before receiving the activation or reconfiguration information of the spatial relationship indication information of the physical uplink control channel (PUCCH) from the base station, the spatial filter on the Spcell adopts the spatial filter of the beam failure detection reference signal corresponding to the preamble sent by the terminal. From the scheduled time after successfully receiving the response information from the base station, the demodulation reference signal of the control channel resource set (CORESET, Control Resource Set) 0 and the latest reported reference signal q new A quasi-co-location relationship is satisfied between them.

[0066] In the above beam failure recovery process, if only the beam failure recovery process is performed for Spcell, when the beam correlation between the secondary cell (Scell) and the primary cell (Pcell) is relatively poor, for example, the beam of Pcell can communicate, but the beam of Scell ​​cannot communicate, such as when Pcell is low frequency and Scell ​​is high frequency, the link of Scell ​​cannot be restored in time, affecting the system performance. Therefore, a beam recovery process for Scell ​​is required. When both Pcell and Scell ​​(belonging to different frequency domain bandwidths) need to perform beam failure recovery process, how to deal with the collision problem is a problem to be solved in this paper.

[0067] In the following embodiments, the beam failure recovery process of the Scell ​​includes at least beam failure detection (i.e., the above step one) and the sending of beam failure request information (i.e., the above step three); it may include one or more of the following steps or operations, or even none of the following steps or operations: selection of a new beam (i.e., the above step two), monitoring of beam failure response information (i.e., the above step four), updating of QCL parameters (i.e., the above operation one), and updating of sending spatial filtering parameters (i.e., the above step five). When the beam failure recovery process of the Scell ​​does not include the selection of a new beam, the terminal only sends the Scell ​​index information to the base station in step three.

[0068] In the following embodiments, the quasi co-location parameter includes at least one of the following: Doppler shift, Doppler spread, average delay, delay spread, and spatial Rx parameter.

[0069] The two reference signals satisfying the quasi co-location relationship includes the two reference signals satisfying the quasi co-location relationship with respect to a type of quasi co-location parameters. The two reference signals satisfying the quasi co-location relationship with respect to a type of quasi co-location parameters includes: the type of quasi co-location parameters of one reference signal can be obtained based on the quasi co-location parameters of another reference signal.

[0070] In the following embodiments, the frequency domain bandwidth includes at least one of the following: a carrier component (CC), a BWP, and a physical resource block set.

[0071] In the following embodiments, the beam failure detection reference signal corresponding to a CC includes at least one of the following: a beam failure detection reference signal in the CC configured through signaling (that is, the first type of reference signal, of course, this embodiment does not exclude that the beam failure detection reference signal of a CC in the signaling information may be located in other CCs), and a beam failure detection reference signal obtained according to the quasi-co-location reference signal of the control channel resources in the CC (in this case, the beam failure detection reference signal may be located in other CCs or in the CC).

[0072] Further, the beam failure detection reference signal corresponding to the CC is a beam failure detection reference signal corresponding to a BWP in an activated state in the CC; or a beam failure detection reference signal corresponding to a BWP in the CC.

[0073] In the following embodiments, a candidate reference signal set corresponding to a CC includes at least one of the following:

[0074] A reference signal that corresponds to a beam failure detection reference signal of the CC;

[0075] Indicates that when a beam failure event is detected according to the beam failure detection reference signal of the CC, one or more reference signals are selected from the candidate reference signal set of the CC; and the index information of the selected reference signal is sent to the base station. Preferably, the link performance of the selected reference signal is higher than a predetermined value. The candidate reference signal set corresponding to a CC may include reference signals located in different CCs.

[0076] The candidate reference signal set corresponding to a CC is a candidate reference signal set corresponding to an activated BWP in the CC; or a candidate reference signal set corresponding to a BWP in the CC.

[0077] When the terminal detects a beam failure event based on a beam failure detection reference signal corresponding to a CC, it sends first information corresponding to the CC (the first information may also be called beam failure request information, or other names, which does not affect the creativity of the present invention), wherein the first information includes at least one of the following: the CC index, the index of the BWP currently in the activated state in the CC, the index of the BWP in which the beam failure occurs in the CC, and indication information of a new reference signal selected from the candidate reference signal set corresponding to the CC.

[0078] In the following embodiments, the first information of the multiple frequency domain bandwidths includes the first information of each frequency domain bandwidth in the multiple frequency domain bandwidths, for example, the first information of {CC1, CC2} includes {the first information of CC1, the first information of CC2}.

[0079] In the following embodiments, the beam failure search space corresponding to a CC means that after the terminal sends the first information corresponding to the CC, the beam failure search space corresponding to the CC monitors the DCI that meets the predetermined characteristics, and when the DCI that meets the predetermined characteristics is monitored, it is confirmed that the first information corresponding to the CC is sent successfully, and the beam failure recovery process corresponding to the CC is completed. For example, the DCI that meets the predetermined characteristics includes at least one of the following: C-RNTI scrambled DCI, MCS-C-RNTI scrambled DCI. In the time period from the sending of the first information corresponding to the CC to the detection of the DCI that meets the predetermined characteristics, the demodulation reference signal of the PDCCH of the DCI that meets the predetermined characteristics and the demodulation reference signal of the PDSCH scheduled by the DCI that meets the predetermined characteristics meet a quasi-co-location relationship with the selected reference signal.

[0080] In the following embodiments, the reference signal includes at least one of the following: a preamble, a demodulation reference signal, and a measurement reference signal.

[0081] In the following embodiments, the signal includes at least one of the following: a reference signal, a synchronization signal, and a channel signal.

[0082] In the following embodiments, the association between two information includes at least one of the following: the other information can be obtained based on one of the information, the value range of the other information can be obtained based on the value of one information, some value combinations of the two information cannot appear at the same time, and there is a corresponding relationship between the two information.

[0083] In the following embodiments, a beam failure recovery process of a frequency domain bandwidth includes a series of beam failure recovery processes performed after a beam failure event is detected by a beam failure detection reference signal in a beam failure detection reference signal set corresponding to a frequency domain bandwidth, that is, a beam failure recovery process corresponding to a frequency domain bandwidth in the following description. A beam failure recovery process of a frequency domain bandwidth corresponds to a beam failure detection reference signal set.

[0084] The beam failure recovery process in one frequency domain bandwidth includes beam failure recovery processes in J frequency domain bandwidths, and the beam failure request resources and / or beam failure search spaces of these beam failure recovery processes are in the one frequency domain bandwidth. The J is greater than or equal to 1.

[0085] Specifically, for example, the beam failure recovery process of CC1 includes a series of beam failure recovery processes performed after a beam failure event is detected according to a beam failure detection reference signal of CC1. The beam failure request resource where the beam failure request information of CC1 is located can be in CC1 or in other CCs such as CC2. The beam failure search space of CC1 can be in CC1 or in other CCs such as CC2.

[0086] The beam failure recovery process in CC2 includes one or more beam failure recovery processes included in CC2. For example, when CC2 includes the beam failure request resources of CC1 and the beam failure request resources of CC2, and / or CC2 includes the beam failure search space of CC1 and the beam failure search space of CC2, the beam failure recovery process in CC2 includes the beam failure recovery process of CC1 and the beam failure recovery process of CC2.

[0087] In summary, in the following description, a beam failure recovery process of a frequency domain bandwidth is a beam failure recovery process, and a beam failure recovery parameter of a frequency domain bandwidth is a set of beam failure recovery parameters. The first information of a frequency domain bandwidth is the first information of a frequency domain bandwidth, and the first information of frequency domain bandwidth 1 can be sent in frequency domain bandwidth 1 or in other frequency domain bandwidths. In the description of this article, a beam failure recovery process / beam failure recovery parameter / first information of a frequency domain bandwidth is sometimes also described as a beam failure recovery process / beam failure recovery parameter / first information corresponding to a frequency domain bandwidth.

[0088] A beam failure recovery process in a frequency domain bandwidth includes one or more beam failure recovery processes, and beam failure recovery resources of the one or more beam failure recovery processes are in the frequency domain bandwidth. A beam failure recovery parameter in a frequency domain bandwidth includes one or more sets of beam failure recovery parameters. A first information in a frequency domain bandwidth includes one or more first information, and the one or more first information are sent in the frequency domain bandwidth. The beam failure recovery resource includes at least one of the following: a beam failure request resource where beam failure request information is located, and a beam failure search space.

[0089] In the following embodiments, the sending opportunity includes at least one of the following resources for sending the first information: time domain resources, frequency domain resources, and code domain resources, indicating sending resources that can send the first information.

[0090] One or more code domain resources are included in a transmission opportunity. When more than one code domain resource is included in a transmission opportunity, one code domain resource in the transmission opportunity is further selected for transmission based on the correspondence between the first information and the code domain resource in the transmission opportunity. For example, one transmission opportunity corresponds to one synchronous broadcast block (SSB). According to the SSB index, the transmission opportunity corresponding to the SSB index can be found. One code domain resource in a transmission opportunity is called a beam failure request resource.

[0091] When the terminal (or the detection end of the beam failure detection reference signal) detects a beam failure event, the first information is sent on one or more beam failure request resources. In short, one beam failure request resource corresponds to (one time domain resource, one frequency domain resource, and one code domain resource), one transmission opportunity includes one or more beam failure request resources, and the time domain resources and frequency domain resources of the multiple beam failure request resources included in one transmission opportunity are the same, but the code domain resources are different. For example, one transmission opportunity is one PRACH-occasion corresponding to one SSB, and one beam failure request resource corresponds to one preamble in one PRACH-occasion.

[0092] In the following implementation, the beam failure request resources include at least one of the following: PRACH resources, PUCCH resources, PUSCH resources, MAC-CE commands, and resource request signals SR.

[0093] In the following embodiments, the sending of information includes sending in an explicit manner or in an implicit manner, for example, sending in an explicit manner includes sending information bits representing the information, and sending in an implicit manner includes sending a reference signal, wherein a sending end and a receiving end predetermine that there is a corresponding relationship between the reference signal and the information.

[0094] See also Figure 1 An embodiment of the present invention provides a beam failure recovery method, comprising:

[0095] Step 100, when the intersection between the time domain resources corresponding to the beam failure recovery processes of N frequency domain bandwidths is not empty, any of the following methods is used to implement the beam failure recovery process of N frequency domain bandwidths. It should be noted that the intersection between the time domain resources corresponding to the beam failure recovery processes of N frequency domain bandwidths is not empty here means that the intersection between the time domain resources corresponding to the beam failure recovery processes of any N1 frequency domain bandwidths in the N frequency domain bandwidths is not empty, where N1 is an integer greater than or equal to 1 and less than or equal to N.

[0096] Beam failure recovery method 1: select a beam failure recovery process of a frequency domain bandwidth among the beam failure recovery processes of N frequency domain bandwidths, perform the beam failure recovery process of the selected frequency domain bandwidth, and terminate or suspend the beam failure recovery process of the unselected frequency domain bandwidth.

[0097] In the above-mentioned beam failure recovery method 1, any method may be used to implement a beam failure recovery process of selecting a frequency domain bandwidth in the beam failure recovery process of N frequency domain bandwidths, and the specific implementation method is not used to limit the protection scope of the embodiment of the present invention. For example, selecting a beam failure recovery process of a frequency domain bandwidth in the beam failure recovery process of N frequency domain bandwidths includes at least one of the following:

[0098] Selecting a beam failure recovery process of a frequency domain bandwidth from among the beam failure recovery processes of the N frequency domain bandwidths according to the second information;

[0099] When beam failure events occur in both the primary cell Pcell and the secondary cell Scell, the beam failure recovery process of the Pcell is selected, and the beam failure recovery process of the Scell ​​is suspended or terminated;

[0100] When a beam failure event occurs in one secondary cell and a beam failure process is in progress in another secondary cell, the communication node determines for which secondary cell the beam failure event is to be processed;

[0101] The one cell corresponds to one frequency domain bandwidth.

[0102] In the above-mentioned beam failure recovery method 1, terminating or pausing the beam failure recovery process of the unselected frequency domain bandwidth includes at least one of the following:

[0103] Pause or terminate the beam failure timer corresponding to the unselected frequency domain bandwidth;

[0104] Setting the first information sending times counter corresponding to the unselected frequency domain bandwidth to a predetermined value;

[0105] The beam failure timer includes at least one of the following: a beam failure recovery timer and a beam failure response information monitoring timer.

[0106] The second information includes at least one of the following:

[0107] Frequency domain bandwidth priority, frequency domain bandwidth parameters, the number of times the first information corresponding to the frequency domain bandwidth has been sent, parameters of the beam failure request resources corresponding to the frequency domain bandwidth, received signaling information, whether the frequency domain bandwidth includes special cells SPcell, time advance information, and whether the beam failure recovery process corresponding to the frequency domain bandwidth is currently in the listening response information stage.

[0108] The parameters of the frequency domain bandwidth include at least one of the following:

[0109] The frequency domain bandwidth index, the frequency domain bandwidth size, the frequency domain bandwidth of the bandwidth part BWP in the frequency domain bandwidth that is in an activated state, the subcarrier spacing of the BWP in the frequency domain bandwidth that is in an activated state, the frequency domain bandwidth of a BWP in the frequency domain bandwidth where a beam failure event occurs, and the subcarrier spacing of a BWP in the frequency domain bandwidth where a beam failure event occurs.

[0110] The parameters of the beam failure request resource include at least one of the following: frequency domain parameters, time domain parameters, power parameters, and cycle size.

[0111] Beam failure recovery method 2: merge beam failure recovery processes of N frequency domain bandwidths into one beam failure recovery process, and perform the merged beam failure recovery process.

[0112] In the above beam failure recovery method 2, N beam failure recovery processes are merged into one beam failure recovery process, and the merged beam failure recovery process is performed, including at least one of the following:

[0113] N frequency domain bandwidths correspond to one beam failure timer;

[0114] N frequency domain bandwidths correspond to a first information sending times counter;

[0115] Only one beam failure timer is running at a time;

[0116] When a beam failure event occurs in a frequency domain bandwidth, a beam failure recovery timer is started or restarted;

[0117] When a beam failure event occurs in a frequency domain bandwidth, the first information sending times counter is set to 0;

[0118] After sending the first information corresponding to a frequency domain bandwidth set, starting or restarting the beam failure response information monitoring timer;

[0119] When the first information corresponding to a frequency domain bandwidth needs to be sent, determine a frequency domain bandwidth set in which a beam failure event currently occurs and has not been successfully recovered, select one or more beam failure request resources according to the determined frequency domain bandwidth set, and send the first information corresponding to the frequency domain bandwidth set on the one or more beam failure request resources;

[0120] When the first information corresponding to a frequency domain bandwidth needs to be sent, determine a frequency domain bandwidth set in which a beam failure event currently occurs and has not been successfully recovered, and send the first information corresponding to the frequency domain bandwidth set;

[0121] When the first information corresponding to a frequency domain bandwidth needs to be sent, determine a frequency domain bandwidth set in which a beam failure event currently occurs and has not been successfully recovered, select M frequency domain bandwidths from the determined frequency domain bandwidth set, select one or more beam failure request resources according to the selected M frequency domain bandwidths, and send the first information corresponding to the M frequency domain bandwidths on the one or more beam failure request resources;

[0122] When the first information corresponding to a frequency domain bandwidth needs to be sent, determine a frequency domain bandwidth set in which a beam failure event currently occurs and has not been successfully recovered, select M frequency domain bandwidths from the determined frequency domain bandwidth set, and send the first information corresponding to the M frequency domain bandwidths;

[0123] Monitor C response information, where one response information is response information of the first information corresponding to one or more frequency domain bandwidth sets, and the value of C is a non-negative integer less than or equal to N;

[0124] When response information corresponding to a frequency domain bandwidth set is received, it is determined that a beam failure recovery process corresponding to the frequency domain bandwidth set is successfully completed;

[0125] The first information includes at least one of the following: a CC index, an index of a BWP currently activated in the CC, an index of a bandwidth portion BWP in which a beam failure occurs in the CC, and indication information of a new reference signal selected from a candidate reference signal set corresponding to a frequency domain bandwidth. Each of the N frequency domain bandwidths corresponds to one beam failure timer;

[0126] The beam failure timer includes at least one of the following: a beam failure recovery timer, a beam failure response information monitoring timer;

[0127] The frequency domain bandwidth set includes one or more frequency domain bandwidths.

[0128] In the embodiment of the present invention, sending the first information corresponding to the frequency domain bandwidth set on the one beam failure request resource includes: sending a reference signal in the one beam failure request resource, wherein there is a corresponding relationship between the one reference signal and the first information corresponding to the frequency domain bandwidth set; or, sending information bits representing the first information corresponding to the frequency domain bandwidth set on the one beam failure request resource; wherein the corresponding relationship between the reference signal of the one beam failure request resource and the first information corresponding to the frequency domain bandwidth set may be included in the received signaling information;

[0129] Sending the first information corresponding to the frequency domain bandwidth set on the multiple beam failure request resources includes one of the following: sending the first information corresponding to the frequency domain bandwidth set on each beam failure request resource in the multiple beam failure request resources; sending the first information corresponding to one frequency domain bandwidth in the frequency domain bandwidth set on each beam failure request resource in the multiple beam failure request resources; sending the first information corresponding to part of the frequency domain bandwidths in the frequency domain bandwidth set on each beam failure request resource in the multiple beam failure request resources;

[0130] The selecting one or more beam failure request resources according to the determined frequency domain bandwidth set comprises: selecting one or more beam failure request resources from P beam failure request resources according to the determined frequency domain bandwidth set;

[0131] The selecting M frequency domain bandwidths from the determined frequency domain bandwidth set comprises selecting M frequency domain bandwidths from the determined frequency domain bandwidth set according to second information;

[0132] The monitoring of C response information includes one of the following: monitoring the C response information in a beam failure search space; monitoring one response information among the C response information corresponding to the beam failure search space in each beam failure search space in the C beam failure search spaces; monitoring the C response information in one or more frequency domain bandwidths.

[0133] The P beam failure request resources include any one of the following:

[0134] P beam failure request resources among the beam failure request resources corresponding to the N frequency domain bandwidths;

[0135] The union of beam failure request resources corresponding to N frequency domain bandwidths;

[0136] The beam failure request resources corresponding to the first information corresponding to the M frequency domain bandwidths in the union of the beam failure request resources corresponding to the N frequency domain bandwidths;

[0137] The union of beam failure request resources corresponding to the M frequency domain bandwidths;

[0138] A beam in one frequency domain bandwidth fails to request resources.

[0139] Beam failure recovery method three: performing beam failure recovery processes of N frequency domain bandwidths in parallel.

[0140] In the above beam failure recovery method three, the maximum number of beam failure recovery processes performed in parallel is associated with the number of frequency domain bandwidths configured with beam failure recovery parameters; and / or the maximum number of beam failure recovery processes performed in parallel is less than or equal to a predetermined value. For example, the maximum number of beam failure recovery processes in which the intersection between the corresponding time domain resources in the beam failure recovery processes performed in parallel is not empty is less than or equal to the number of frequency domain bandwidths configured with beam failure recovery parameters.

[0141] In the above beam failure recovery method 3, no conditional constraints may be imposed on the beam failure recovery processes of N frequency domain bandwidths being performed in parallel. For example, the beam failure recovery processes of N frequency domain bandwidths being performed in parallel are independent of each other and do not affect each other.

[0142] Of course, certain conditions may also be imposed on the beam failure recovery process of N frequency domain bandwidths performed in parallel. For example, in the beam failure recovery process of N frequency domain bandwidths performed in parallel, the first information corresponding to one frequency domain bandwidth can only be sent on one uplink beam failure request resource at a time.

[0143] For example, performing the beam failure recovery process of N frequency domain bandwidths in parallel includes at least one of the following:

[0144] Each frequency domain bandwidth in the N frequency domain bandwidths corresponds to a beam failure timer;

[0145] There are Y1 frequency domain bandwidths in the N frequency domain bandwidths whose intersections between the time periods in which the corresponding beam failure timers are running are not empty; where Y1 is an integer greater than or equal to 1 and less than or equal to N;

[0146] At one point in time, one or more of the N beam failure timers corresponding to the N frequency domain bandwidths are running;

[0147] Each of the N frequency domain bandwidths corresponds to a first information sending times counter;

[0148] When a beam failure event occurs in a first frequency domain bandwidth and a beam failure recovery process of at least a second frequency domain bandwidth is in progress, start a beam failure recovery timer corresponding to the first frequency domain bandwidth; wherein the first frequency domain bandwidth and the second frequency domain bandwidth are two different frequency domain bandwidths among the N frequency domain bandwidths;

[0149] When the first information corresponding to the third frequency domain bandwidth needs to be sent and there is at least a beam failure recovery process of the fourth frequency domain bandwidth in progress, the first information corresponding to the third frequency domain bandwidth is sent on the beam failure request resource corresponding to the third frequency domain bandwidth; wherein the third frequency domain bandwidth and the fourth frequency domain bandwidth are two different frequency domain bandwidths among the N frequency domain bandwidths;

[0150] Monitoring N response information, where one response information among the N response information is beam failure response information corresponding to one or more frequency domain bandwidths among the N frequency domain bandwidths;

[0151] In the same time period, when the intersection of the time domain resources occupied by the beam failure request resources corresponding to the N first information of the N frequency domain bandwidths is not empty, M first information of the N first information are sent in one channel; or M first information of the N first information are sent in M ​​channels;

[0152] In the same time period, when the intersection of the time domain resources occupied by the N beam failure request resources corresponding to the N first information is empty, the corresponding first information is sent on each beam failure request resource;

[0153] Sending N first information, where an intersection of N beam failure request resources corresponding to the N first information in the same time period is empty;

[0154] Receive signaling information, where the signaling information includes a correspondence between a frequency domain bandwidth, the beam failure request resource, and the first information, and an intersection between time domain resources occupied by the beam failure request resources of the N frequency domain bandwidths in the signaling information is empty;

[0155] When the response information corresponding to the fifth frequency domain bandwidth is received before the beam failure response information listening timer corresponding to the fifth frequency domain bandwidth times out, it is determined that the beam failure recovery process corresponding to the fifth frequency domain bandwidth is successfully completed, and the beam failure timer corresponding to the fifth frequency domain bandwidth is stopped; wherein the fifth frequency domain bandwidth is any one of the N frequency domain bandwidths;

[0156] The first information includes at least one of the following: a carrier component (CC) index, an index of a BWP currently activated in a CC, an index of a BWP in which a beam failure occurs in a CC, and indication information of a new reference signal selected from a set of candidate reference signals corresponding to a frequency domain bandwidth;

[0157] The beam failure timer includes at least one of the following: a beam failure recovery timer, a beam failure response information monitoring timer;

[0158] Wherein, M is a positive integer greater than or equal to 1 and less than or equal to N.

[0159] In the embodiment of the present invention, a beam failure recovery process of a frequency domain bandwidth is being performed including a beam failure timer of a frequency domain bandwidth is running.

[0160] In this embodiment of the present invention, when M of the N first information are sent in one channel; or when M of the N first information are sent in M ​​channels, the one channel or the M channels satisfy one of the following characteristics:

[0161] The one channel corresponds to one of the N beam failure request resources in the same time period;

[0162] The one channel corresponds to a beam failure request resource other than the N beam failure request resources in the same time period;

[0163] There is a corresponding relationship between the reference signal of the one channel and the M first information; or the one channel includes information bits representing the M first information;

[0164] The time domain resources occupied by the M channels are a subset of the union of the time domain resources occupied by the N beam failure request resources in the same time period;

[0165] The time domain resources occupied by each of the M channels are a subset of the union of the time domain resources occupied by the N beam failure request resources in the same time period, and the intersection of time domain resources occupied by different channels is empty.

[0166] In the embodiment of the present invention, the M first information are selected according to the second information.

[0167] In an embodiment of the present invention, monitoring N response information includes one of the following: monitoring one response information among the N response information in each beam failure search space in N beam failure search spaces; monitoring the N response information in a beam failure search space; monitoring the N response information in one or more frequency domain bandwidths.

[0168] In this embodiment of the present invention, each of the frequency domain bandwidths to which the corresponding first information has been sent satisfies at least one of the following:

[0169] During a time period from a first predetermined time after the first information corresponding to the frequency domain bandwidth is sent to an occurrence of a predetermined event, a predetermined demodulation reference signal and a reference signal included in the first information corresponding to the frequency domain bandwidth satisfy a quasi-co-site QCL relationship;

[0170] From a second predetermined time after successfully receiving the response information of the frequency domain bandwidth to before receiving the activation or reconfiguration information of the spatial relationship indication information of the uplink control channel of the frequency domain bandwidth, the spatial transmission filter of the uplink channel and / or the signal in the frequency domain bandwidth is acquired according to the spatial transmission filter of the first information corresponding to the frequency domain bandwidth;

[0171] Starting from a third predetermined time after successfully receiving the response information of the frequency domain bandwidth, the demodulation reference signal in the control channel resource set CORESET0 and the reference signal included in the first information corresponding to the frequency domain bandwidth of CORESET0 that is sent satisfy a QCL relationship;

[0172] Wherein, the predetermined demodulation reference signal includes at least one of the following: a demodulation reference signal of a control channel in a beam failure recovery search space of the frequency domain bandwidth; a demodulation reference signal of a data channel scheduled by a control channel in the beam failure recovery search space of the frequency domain bandwidth; a demodulation reference signal of a data channel in the frequency domain bandwidth scheduled by a control channel in the beam failure recovery search space of the frequency domain bandwidth; a demodulation reference signal of a control channel in the beam failure recovery search space of the frequency domain bandwidth; a demodulation reference signal of a data channel in the frequency domain bandwidth scheduled by a control channel in the beam failure recovery search space of the frequency domain bandwidth;

[0173] The predetermined event includes one of the following:

[0174] After detecting at least one response information in the beam failure recovery search space of the frequency domain bandwidth, receiving reconfiguration or activation information of a quasi-co-site reference signal of a downlink control channel of the frequency domain bandwidth;

[0175] After at least one response information is detected in the beam failure recovery search space of the frequency domain bandwidth, reconfiguration or activation information of a quasi-co-site reference signal of a downlink control channel in the frequency domain bandwidth corresponding to the beam failure detection reference signal set is received;

[0176] Receiving reconfiguration or activation information of a quasi-co-site reference signal of a downlink control channel of the frequency domain bandwidth;

[0177] Receiving reconfiguration or activation information of a quasi-co-location reference signal of a downlink control channel;

[0178] Stop detecting the control channel in the beam failure search space of the frequency domain bandwidth.

[0179] At least one of the first scheduled time, the second scheduled time, and the third scheduled time is obtained according to at least one of the following:

[0180] The subcarrier spacing of the BWP where the beam failure request resource for sending the first information corresponding to the frequency domain bandwidth is located;

[0181] The subcarrier spacing of the BWP in the frequency domain bandwidth in an activated state;

[0182] The ratio between the subcarrier spacing of the BWP in the activated state in the frequency domain bandwidth and the subcarrier spacing of the BWP where the beam failure request resource for sending the first information corresponding to the frequency domain bandwidth is located.

[0183] In the embodiment of the present invention, the beam failure request resources corresponding to the N frequency domain bandwidths belong to the same frequency domain bandwidth; or belong to different frequency domain bandwidths respectively;

[0184] And / or, the beam failure search spaces corresponding to the N frequency domain bandwidths belong to the same frequency domain bandwidth; or belong to different frequency domain bandwidths respectively.

[0185] In the embodiment of the present invention, one of the frequency domain bandwidths includes at least one of the following: one carrier component CC, one BWP, and one physical resource block set;

[0186] And / or, the first information corresponding to a CC includes first information corresponding to a BWP in the CC, wherein the BWP includes one of the following: a BWP that is currently in an activated state in the CC; a BWP corresponding to a reference signal corresponding to the reference signal indication information included in the first information corresponding to the CC; a BWP corresponding to the BWP indication information included in the first information corresponding to the CC.

[0187] In the embodiment of the present invention, the intersection of the time domain resources corresponding to the beam failure recovery processes of the N frequency domain bandwidths is not empty and includes at least one of the following:

[0188] When the first information corresponding to one frequency domain bandwidth needs to be sent, a beam failure recovery process of at least another frequency domain bandwidth is in progress;

[0189] When the first information corresponding to one frequency domain bandwidth needs to be sent, at least beam failure response information of another frequency domain bandwidth is being monitored;

[0190] In the intersection part between the time domain resources corresponding to the beam failure recovery process of the N frequency domain bandwidths, all the frequency domain bandwidths in the N frequency domain bandwidth parts have a beam failure event and have not been successfully recovered;

[0191] Among them, the time domain resources corresponding to the beam failure recovery process include one of the following: the time period from detecting the beam failure event to monitoring the beam failure response information; the time period from detecting the beam failure event to stopping monitoring the control channel in the beam failure search space; the time period from sending the first information corresponding to the frequency domain bandwidth to monitoring the beam failure response information; the time period from sending the first information to stopping monitoring the control channel in the beam failure search space; the time period when the beam failure recovery timer runs; the time period when the beam failure response information monitoring timer runs.

[0192] In another embodiment of the present invention, the method further comprises:

[0193] By detecting the beam failure detection reference signal in the beam failure detection reference signal set corresponding to each frequency domain bandwidth, it is determined whether a beam failure event occurs in each frequency domain bandwidth; wherein the beam failure detection reference signal sets corresponding to different frequency domain bandwidths are different.

[0194] The embodiment of the present invention implements the beam failure recovery process of N CCs when the time domain resources corresponding to the beam failure recovery process of N CCs collide, and quickly recovers the communication links of multiple frequency domain bandwidths.

[0195] Another embodiment of the present invention provides a method for determining beam failure recovery parameters, including:

[0196] At least one of the following information is determined according to the signaling information and / or the predetermined rules: the correspondence between a beam failure request resource and the first information of E frequency domain bandwidths; the conditions that need to be met for the beam failure request resources of G frequency domain bandwidths; the correspondence between a first information and H type resources; the sending opportunity of the first information corresponding to the first frequency domain bandwidth in the second frequency domain bandwidth; beam failure recovery parameter information when a frequency domain bandwidth includes beam failure recovery resources of F frequency domain bandwidths; wherein E, F, G, and H are positive integers greater than 1.

[0197] In another embodiment of the present invention, the method further comprises:

[0198] A beam failure recovery process is performed according to the determined information. For details on how to perform a beam failure recovery process according to the determined information, reference may be made to the implementation process of other embodiments, such as performing at least one of the following processes of Pcell and / or Scell ​​according to the determined information: beam failure detection, new beam selection, beam failure request information transmission, beam failure response information monitoring, QCL parameter determination, spatial transmission filter determination, etc., which will not be repeated here.

[0199] In the embodiment of the present invention, for example, the signaling information includes a correspondence between a beam failure request resource and the first information of E frequency domain bandwidths. For example, when the beam failure recovery process of N frequency domain bandwidths is performed in parallel, M first information of the N first information is sent in one channel; or when M first information of the N first information is sent in M ​​channels, the first information of the E frequency domain bandwidths is the M first information.

[0200] For example, the N beam failure recovery processes are merged into one beam failure recovery process. When the merged beam failure recovery process is performed, the first information of the E frequency domain bandwidths is the first information corresponding to the M frequency domain bandwidths, or the first information corresponding to the frequency domain bandwidth set.

[0201] For example, when a beam failure recovery process of one frequency domain bandwidth is selected among the beam failure recovery processes of N frequency domain bandwidths, the beam failure recovery process of the selected frequency domain bandwidth is performed, and the beam failure recovery process of the unselected frequency domain bandwidth is terminated or paused, the first information of the E frequency domain bandwidths is the first information of one of the frequency domain bandwidths.

[0202] In the embodiment of the present invention, the conditions that need to be met for determining the beam failure request resources of G frequency domain bandwidths include at least one of the following:

[0203] The intersection of the time domain resources occupied by the beam failure request resources of the G frequency domain bandwidths in the same time period is empty;

[0204] One random access transmission opportunity does not include beam failure request resources of more than one frequency domain bandwidth.

[0205] A transmission opportunity may be a PRACH-occasion, or may be a resource of a periodic uplink channel resource in a period.

[0206] For example, the G frequency domain bandwidths are the N frequency domain bandwidths in the above embodiment.

[0207] In the embodiment of the present invention, determining the correspondence between the first information and the H-type resource includes at least one of the following:

[0208] The signaling information includes a correspondence between the first information and the H-class resource;

[0209] The first and second category resources included in the H category resources satisfy at least one of the following characteristics: the first category resources are associated with a spatial relationship indication information; the second category resources are not associated with spatial relationship indication information; the first category resources include one of the following: physical uplink control channel PUCCH resources, PRACH resources, scheduling request SR resources; the second category resources include PRACH resources;

[0210] The frequency domain bandwidths where the class H resources are located are different;

[0211] The H-type resources include resources located in different bandwidth parts BWP of a carrier component CC;

[0212] The H-type resources include resources in different CCs;

[0213] The first information is first information corresponding to a frequency domain bandwidth or first information corresponding to a frequency domain bandwidth set. For example, the first information corresponding to the frequency domain bandwidth set {CC1, CC2} includes {first information corresponding to CC1, first information corresponding to CC2}.

[0214] In an embodiment of the present invention, the method further includes at least one of the following:

[0215] Sending the first information in one or more types of resources in the H-type resources, wherein the BWP where the one or more types of resources are located is currently in an activated state;

[0216] Sending the first information in one or more types of resources in the H-type resources, wherein no beam failure event occurs in the frequency domain bandwidth where the one or more types of resources are located;

[0217] When a beam failure event occurs in all frequency domain bandwidths where the H-class resources are located, sending the first information in one or more types of resources in the H-class resources;

[0218] When no beam failure event occurs in the frequency domain bandwidth where the first type of resources associated with the first information are located, sending the first information in the first type of resources;

[0219] When a beam failure event occurs in the frequency domain bandwidth where the first type of resources associated with the first information are located, the first information is sent in the second type of resources.

[0220] In this embodiment of the present invention, determining an opportunity for sending first information corresponding to the first frequency domain bandwidth in the second frequency domain bandwidth includes one of the following:

[0221] The signaling information includes a correspondence between first information corresponding to the first frequency domain bandwidth and a transmission opportunity index in the second frequency domain bandwidth;

[0222] The signaling information includes a correspondence between the first information corresponding to the first frequency domain bandwidth and the synchronization broadcast block SSB index corresponding to the second frequency domain bandwidth;

[0223] Determine the transmission opportunity according to an SSB index corresponding to a reference signal with a link performance higher than a predetermined threshold in the beam failure detection reference signal set corresponding to the second frequency domain bandwidth;

[0224] Determine the transmission opportunity according to an SSB index corresponding to a reference signal whose link performance is higher than a predetermined threshold in the candidate reference signal set corresponding to the second frequency domain bandwidth;

[0225] Determine the transmission opportunity according to an SSB index corresponding to a reference signal whose link performance is higher than a predetermined threshold in the candidate reference signal set corresponding to the first frequency domain bandwidth;

[0226] Determine the transmission opportunity according to the SSB corresponding to the reference signal included in the first information of the first frequency domain bandwidth;

[0227] Among them, the SSB corresponding to the one reference signal includes an SSB that satisfies a quasi co-location relationship with the one reference signal.

[0228] In an embodiment of the present invention, the signaling information includes a correspondence between the first information corresponding to the first frequency domain bandwidth and the transmission opportunity index in the second frequency domain bandwidth, including: the signaling information includes the first information, one or more transmission opportunity index information, and reference signal sequence information in the beam failure request resource;

[0229] Alternatively, the correspondence between the first information corresponding to the first frequency domain bandwidth included in the signaling information and the SSB index includes: the signaling information includes the first information, one or more of the SSB indexes, and the reference signal sequence information in the beam failure request resource.

[0230] In the embodiment of the present invention, when determining a beam failure recovery resource including first information of F frequency domain bandwidths in a frequency domain bandwidth, the beam failure recovery parameter information includes at least one of the following:

[0231] The F frequency domain bandwidths correspond to F sets of first type beam failure recovery parameter information and F sets of second type beam failure recovery parameter information;

[0232] The F frequency domain bandwidths correspond to a set of first type beam failure recovery parameter information and F sets of second type beam failure recovery parameter information;

[0233] The F frequency domain bandwidths correspond to a set of first-type beam failure recovery parameter information and a set of second-type beam failure recovery parameter information;

[0234] Determine, according to signaling information and / or a predetermined rule, a correspondence between F frequency domain bandwidths and F sets of the first type of beam failure recovery parameters and / or F sets of the second type of beam failure recovery parameters;

[0235] Among them, the beam failure recovery resource includes at least one of the following: a beam failure request resource and a beam failure search space resource.

[0236] In an embodiment of the present invention, the first type of beam failure recovery parameter information includes at least one of the following configuration information:

[0237] The preamble format information included in PRACH (the parameter can be prach-ConfigurationIndex), frequency domain resource information of PRACH (the reference can be msg1-FDM and / or msg1-FrequencyStart), target receiving power information of PRACH, maximum transmit power information of preamble, power increase step information, maximum duration information of response information listening timer, cyclic shift information of preamble (the parameter can be zeroCorrelationZoneConfig), maximum duration corresponding to beam failure detection timer, and maximum number of times corresponding to beam failure detection counter.

[0238] In this embodiment of the present invention, the second type of beam failure recovery parameter information includes at least one of the following:

[0239] The starting logical root index information of the preamble, the performance threshold information of the beam failure detection reference signal, the correspondence information between the candidate reference signal and the preamble, the mapping relationship information between the SSB and the PRACH transmission opportunity (for example, the parameter is the ssb-perRACH-Occasion information), the PRACH transmission opportunity index information in the PRACH transmission opportunity set corresponding to an SSB (for example, the parameter is the ra-ssb-OccasionMask Index), the beam failure search space, the beam failure recovery timer, and the candidate reference signal set.

[0240] In this embodiment of the present invention, the first information includes at least one of the following:

[0241] CC index, index of the BWP currently activated in the CC, index of the BWP in the bandwidth part where beam failure occurs in the CC, indication information of a new reference signal selected from the candidate reference signal set corresponding to the frequency domain bandwidth, beam failure request information, and information sent when a beam failure event is detected by detecting a reference signal set.

[0242] In the embodiment of the present invention, the frequency domain bandwidth includes at least one of the following: BWP, CC, and a physical resource block set.

[0243] In the following embodiments, the occurrence of a beam failure event in a frequency domain bandwidth includes detecting the beam failure event according to a beam failure detection reference signal corresponding to the frequency domain bandwidth.

[0244] In the following embodiments, the one transmission opportunity may be a PRACH-occasion, or may be a resource of a periodic uplink channel resource in a period, or may be a resource of a semi-periodic uplink channel resource in a period.

[0245] Example 1

[0246] In this embodiment, when the terminal needs to process the beam failure recovery process of N CCs, one or more of the following solutions may be used, where N is a positive integer greater than 1. For example, the N CCs are all high frequency, and in particular, the beam correlation of the N CCs is relatively poor. When the intersection of the time domain resources corresponding to the beam failure recovery process of the N CCs is not empty, one or more of the following solutions may be used to solve the problem:

[0247] Solution 1: If Figure 2 As shown, by detecting the beam failure detection reference signal set corresponding to CC1, the terminal discovers that a beam failure event has occurred in CC1 at time t0, thereby sending the first information corresponding to CC1 to the base station, wherein the first information includes at least one of the following information: CC index, i.e. CC1, index of the BWP currently in the activated state in CC1, index of the BWP in CC1 where beam failure has occurred, and indication information of a new reference signal selected from the candidate reference signal set corresponding to CC1.

[0248] After sending the first information, starting at time t2, the response information (i.e., the beam failure response information) to the first information of CC1 sent is listened to in the beam failure recovery search space corresponding to CC1. For example, if the C-RNTI / MCS-C-RNTI encrypted DCI is listened to in the beam failure recovery search space corresponding to CC1 at time t4, it means that the beam failure recovery process corresponding to CC1 is completed.

[0249] In the time period from t2 to t4, the demodulation reference signal of the PDCCH in the beam failure recovery search space corresponding to CC1, the demodulation reference signal of the PDSCH scheduled by the PDCCH in the beam failure recovery search space corresponding to CC1, and the reference signal corresponding to the reference signal indication information included in the first information corresponding to CC1 satisfy a quasi-co-location relationship.

[0250] The above is the beam failure recovery process of CC1. Figure 2 As shown, during the beam failure recovery process of CC1, the terminal detects the beam failure detection reference signal set corresponding to CC2, and finds that a beam failure event has occurred in CC2 at time t1 between time t0 and time t2, and reports the first information corresponding to CC2 to the base station. From time t3 to time t5, the terminal detects the C-RNTI / MCS-C-RNTI encrypted DCI in the beam failure recovery search space corresponding to CC2. For example, if the DCI is detected at time t5, the beam failure recovery process corresponding to CC2 is completed.

[0251] In scheme 1, in one time period, the terminal performs N beam failure recovery processes in parallel.

[0252] Furthermore, although N beam failure recovery processes can be performed in parallel, the first information corresponding to the CC corresponding to the uplink beam failure request resource can only be sent on one uplink beam failure request resource at a time. For this reason, when the intersection of the time domain resources occupied by N beam failure request resources corresponding to N frequency domain bandwidths is not empty, it is necessary to adopt one or more of the following schemes 1.1 to 1.4, wherein each of the N beam failure request resources corresponds to the first information corresponding to a CC among the N CCs.

[0253] Solution 1.1: Select a beam failure request resource from N beam failure request resources, and send first information corresponding to the CC corresponding to the beam failure request resource on the selected beam failure request resource.

[0254] A beam failure request resource can be selected from the N beam failure request resources based on at least one of the following information: CC priority, CC parameters, the number of times the first information corresponding to the CC has been sent (that is, the current value of the first information sending number counter corresponding to the CC), parameters of the beam failure request resource, signaling information notified by the base station, whether the CC includes SPcell, time advance information, and whether the frequency domain bandwidth is currently in the listening response information stage.

[0255] The parameters of the CC include at least one of the following: CC index, frequency domain bandwidth size of the CC, frequency domain bandwidth of a BWP in an activated state in the CC, subcarrier spacing of a BWP in an activated state in the CC, frequency domain bandwidth of a BWP in which a beam failure event occurs in the CC, and subcarrier spacing of a BWP in which a beam failure event occurs in the CC. For example, the larger the frequency domain bandwidth, the higher the priority level can be.

[0256] The parameters of the beam failure request resource include at least one of the following: frequency domain parameters, time domain parameters, power parameters, and cycle size. For example, beam failure request resources with lower current transmission power are preferentially selected, and beam failure request resources with smaller cycles are preferentially selected, because the smaller the cycle, the base station hopes that the CC will be restored as soon as possible. Of course, resources with larger cycles can also be preferentially selected, because such resources can be sent next time.

[0257] For example, if the N CCs include a Pcell (or a PScell ​​in a serving cell group (SCG, Serving Cell Group)), SPcell (i.e., the above-mentioned PCell or PScell) is preferentially selected. If there is no SPcell in the N CCs, the CC with the lowest CC index is selected, or the CC index is directly selected, such as the highest index or the lowest index. Preferably, it is necessary to ensure that the SPcell can be preferentially selected at this time.

[0258] The above is to select a beam failure request resource from N beam failure request resources. This embodiment does not exclude selecting a CC from N CCs, and then sending the first information corresponding to the selected CC on the beam failure request resources outside the N beam failure request resources. At this time, although the first information corresponding to one CC is sent on the beam failure request resource, the base station knows that beam failure events have occurred in more than one CC at this time.

[0259] Furthermore, although a beam failure request resource is selected to be sent at the moment of collision, since N beam failure processes are carried out in parallel and the N beam failure request resources appear periodically, the first information corresponding to the unsent CC can be further sent in the next period. If the time domain intersection between the N beam failure request resources in the next beam failure request information sending opportunity is empty, these beam failure request resources can be sent directly. If the time domain intersection between the N beam failure request resources in the next beam failure request information sending opportunity is not empty, one of the beam failure request resources can be further selected to be sent based on at least one of the following information: CC priority, CC index, CC parameters, the number of times the first information corresponding to the CC has been sent, the parameters of the beam failure request resource, the signaling information notified by the base station, whether the CC includes SPcell, the time advance information, and whether the frequency domain bandwidth is currently in the listening response information stage; similar to the above selection process. Figure 3 As shown, starting from t5, beam failure events occurred in CC1, CC2, and CC3. At t5, CC1 with the smallest period and the smallest index is selected. At t6 and t8, although CC1 has the opportunity to send beam failure request resources, since the beam failure recovery process of CC1 is still in the response stage of monitoring the base station, there is no need to send beam failure request information. At t7 and t11, only CC2 has beam sending request resources, so the beam failure request information corresponding to CC2 can be sent on the beam failure request resources of CC2. At t9, CC1, CC2, and CC3 all need to send beam failure request information, and the beam failure request information of CC1 is selected according to the selection principle. At t13, CC1, CC2, and CC3 all need to send beam failure request information, and the beam failure request information of CC3 is selected according to the selection principle. Figure 3 The bold line in the figure indicates that the beam selected by the terminal fails to request resources.

[0260] Solution 1.2: The terminal does not want the intersection of the time domain resources occupied by the N beam failure request resources to be non-empty. For example, when the N beam failure request resources are physical random access channel (PRACH) beam failure request resources, the terminal does not want to send preambles associated with the first information corresponding to more than one CC on one PRACH occasion, or when the N beam failure request resources are PUCCH or scheduling request (SR) or PUSCH beam failure request resources, the terminal does not want the intersection of the time domain resources occupied by PUCCH or SR or PUSCH corresponding to different CCs to be non-empty, that is, the intersection between the beam failure request resources corresponding to different CCs is empty;

[0261] Solution 1.3: Select a beam failure request resource from the beam failure request resources outside the N beam failure request resources according to the signaling information and / or predetermined rules, and send more than one first information corresponding to the N CCs on the selected beam failure request resource. For example, a preamble or PUCCH or SR or PUSCH beam failure request resource corresponds to more than one first information corresponding to CC. For example, a preamble corresponds to the following information {indication information of a reference signal of CC1, indication information of a reference signal of CC2, indication information of a reference signal of CC3}. After receiving the preamble, the base station knows that a beam failure event has occurred in CC1, CC2, and CC3, and the terminal selects the reference signal corresponding to the indication information of the reference signal from the candidate reference signal sets corresponding to CC1, CC2, and CC3, respectively. Or a preamble corresponds to the following information: {indication information of a reference signal of CC1, CC2 index, CC3 index}. After receiving the preamble, the base station knows that beam failure events have occurred in CC1, CC2, and CC3, and the terminal selects the reference signal corresponding to the indication information of the reference signal from the candidate reference signal set corresponding to CC1.

[0262] Solution 1.4: The terminal decides by itself to send the first information of the CC corresponding to one of the N beam failure request resources on the beam failure request resource.

[0263] Solution 1.5: Divide the time domain resources corresponding to the N beam failure request resources into M time-divided beam failure request resources, and send the first information corresponding to M CCs in sequence on the M time-divided beam failure request resources, wherein M may be a positive integer less than or equal to N, and further determine at least one of the following information based on the signaling information and / or predetermined rules: a method for dividing the time domain resources corresponding to the N beam failure request resources into M time-divided beam failure request resources, a method for selecting M CCs from the N CCs, and a correspondence between the selected M CCs and the M time-divided beam failure request sub-resources. Figure 4 As shown, at t5, t9, and t13, the intersection of the time domain resources occupied by the beam failure request resources of CC1, CC2, and CC3 is not empty. For this reason, at each of t5, t9, and t13, three time-divided resources can be selected to report the beam failure request information of CC1, CC2, and CC3 in turn.

[0264] The N beam failure request resources of the above-mentioned N CCs may be located in different CCs respectively or in one CC. In this case, one CC includes beam failure request resources corresponding to more than one CC, for example, the Pcell includes beam failure request resources of the Pcell and beam failure request resources of the Scell, wherein the first information corresponding to a CC is sent on the beam failure request resources of the CC.

[0265] The beam failure search spaces corresponding to the N CCs may be located in different CCs or in the same CC.

[0266] In solution 1, in order to solve the problem of beam failure events occurring in N CCs, the terminal runs N beam failure recovery processes or N PRACH processes in parallel in a time period (for example, the first information is sent via PRACH, that is, a correspondence between the PRACH resource and the first information is established, and the base station can obtain the first information through the received PRACH resource). In the above solution, after the terminal sends the first beam failure request information and within the time period when it determines that the beam failure request information is sent successfully, the terminal can also send the second beam failure request information, and can listen to the response information of the first beam failure request information and the response information of the second beam failure request information in parallel. The complexity of the terminal is increased, and further, it may depend on the terminal capabilities. Some terminals can support this function, and some terminals do not support this function.

[0267] Furthermore, there is a correlation between the number of CCs configured with beam failure recovery parameters and the maximum number of PRACH processes running in parallel at one time. For example, if the number of CCs configured with beam failure recovery parameters is 3, there are at most 3 PRACH processes running in parallel at one time. For example, before hearing the response information from the base station, the terminal can send more than one preamble, and / or the terminal needs to listen to the confirmation information corresponding to each preamble sent.

[0268] Solution 2: The terminal can only perform one PRACH process / beam failure recovery process at any point in time.

[0269] The time domain resources corresponding to the beam failure recovery process include one of the following: the time period from detecting a beam failure event to monitoring beam failure response information; the time period from detecting a beam failure event to stopping monitoring the control channel in the beam failure search space; the time period from sending the first information corresponding to the frequency domain bandwidth to monitoring beam failure response information; the time period from sending the first information to stopping monitoring the control channel in the beam failure search space; the time period when the beam failure recovery timer runs; the time period when the beam failure response information monitoring timer runs. At this time, in order to solve the problem of beam failure events occurring in multiple CCs, one or more of the following solutions 2.1 to 2.3 can be adopted:

[0270] Solution 2.1: Select a beam failure recovery process of one CC from among the beam failure recovery processes of N CCs, perform only the beam failure recovery process of the selected CC, and terminate or suspend the beam failure recovery process of the unselected CCs.

[0271] A beam failure recovery process of one CC can be selected from the beam failure recovery processes of the N CCs based on at least one of the following information: CC priority, CC parameters, the number of times the first information corresponding to the CC has been sent, parameters of the beam failure recovery process, parameters of the beam failure request resources corresponding to the CC, signaling information notified by the base station, whether the CC includes SPcell, timing advance information, and whether the CC is currently in the stage of listening to response information.

[0272] The parameters of the CC include at least one of the following: CC index, frequency domain bandwidth of the CC, frequency domain bandwidth of a BWP in an activated state in the CC, subcarrier spacing of a BWP in an activated state in the CC, frequency domain bandwidth of a BWP in which a beam failure event occurs in the CC, and subcarrier spacing of a BWP in which a beam failure event occurs in the CC. For example, the larger the frequency domain bandwidth, the higher the priority level can be.

[0273] The parameters of the beam failure request resource include at least one of the following: frequency domain parameters, time domain parameters, power parameters, and cycle size. For example, the beam failure request process with a lower current transmit power is preferentially selected, and the beam failure request process of the CC with a smaller cycle of the beam failure request resource is preferentially selected.

[0274] For example, if the N CCs include a Pcell (or a PScell ​​in an SCG), the SPcell (i.e., the PCell or PScell ​​mentioned above) is preferentially selected. If there is no SPcell in the N CCs, the CC with the lowest CC index is selected, or the CC index is directly selected, such as the highest index or the lowest index. Preferably, it is necessary to ensure that the SPcell can be preferentially selected at this time.

[0275] The above is to select a beam failure recovery process from N beam failure recovery processes. When a beam failure recovery process of a lower priority CC is in progress, if a beam failure event occurs on a higher priority CC, the beam failure recovery process of the lower priority CC can be terminated or suspended, and the beam failure recovery process of the higher priority CC is performed first, and after the beam failure recovery process of the higher priority CC is restored, the beam failure recovery process of the lower priority CC is performed. For example, during the beam failure recovery process of the Scell, if a beam failure event occurs in the Pcell, the beam failure recovery process of the Scell ​​can be terminated or suspended, and the beam failure recovery process of the Pcell is performed first, and after the Pcell is restored, the beam failure recovery process of the Scell ​​is performed. Wherein suspending or terminating the beam failure recovery process of a CC includes suspending or terminating at least one of the following timers corresponding to the beam failure recovery process of the CC: a beam failure recovery timer, a beam failure response information monitoring timer, a beam failure detection timer, and a beam failure request information sending times counter (i.e., the first information sending times counter).

[0276] Solution 2.2: Select M beam failure recovery processes from the N beam failure recovery processes, merge the selected M beam failure recovery processes into one beam failure recovery process, and perform the merged beam failure recovery process.

[0277] In the process of combined beam failure recovery, the first information corresponding to M CCs is sent on the beam failure request resource. For example, a preamble corresponds to the first information corresponding to more than one CC, or a PUCCH / PUSCH / SR beam failure recovery resource corresponds to the first information corresponding to more than one CC. For example, a preamble corresponds to the following information {a reference signal indication information of CC1, a reference signal indication information of CC2, a reference signal indication information of CC3}, the frequency domain bandwidth of a BWP where a beam failure event occurs in the CC, the subcarrier spacing of a BWP where a beam failure event occurs in the CC, or a preamble corresponds to the following information: {a reference signal indication information of CC1, CC2 index, CC3 index}. After receiving this preamble, the base station knows that a beam failure event has occurred in CC1, CC2, and CC3, and the terminal selects the reference signal corresponding to the reference signal indication information in the candidate reference signal set corresponding to CC1.

[0278] Furthermore, the beam failure recovery request resource of the combined beam failure recovery process can be selected from the union of the beam failure request resources corresponding to the N or M beam failure recovery processes. Figure 5 As shown, the period of the beam failure request resource of CC1 is 1ms, the period of the beam failure request resource of CC2 is 1.5ms, and the period of the beam failure request resource of CC3 is 3ms. At time t5, beam failure events occur in {CC1, CC2, CC3}. The beam failure recovery processes of {CC1, CC2, CC3} are merged into one beam failure recovery process. The beam failure request resources corresponding to {CC1, CC2, CC3} can all be used to send the beam failure request information of the merged beam failure recovery process. However, in each opportunity to send beam failure request information, there should be a beam failure request resource corresponding to {the first information corresponding to CC1, the first information corresponding to CC2, and the first information corresponding to CC3}. For example, at each time of t5, t9, and t13, the beam failure request resources of the three CCs can be used to send the beam failure request information of the merged beam failure recovery process, that is, Figure 5At each time point t5, t9, and t13, the terminal selects the beam failure request resource corresponding to {the first information corresponding to CC1, the first information corresponding to CC2, and the first information corresponding to CC3} in the beam failure request resource of one CC to send. If only one beam failure request resource of the three CCs can correspond to {the first information corresponding to CC1, the first information corresponding to CC2, and the first information corresponding to CC3}, then the beam failure request resource is sent. After sending, the base station knows which CCs have beam failure events, and / or the new beam selected by the terminal for the CC where the beam failure event occurs.

[0279] The above is to send the first information of more than one CC on one beam failure recovery request resource. This embodiment does not exclude sending the first information of the N CCs in sequence in more than one beam failure recovery request resources, and the first information of the N CCs corresponds to one or more beam failure confirmation information.

[0280] In the next opportunity to send beam failure request information, the beam failure request resources corresponding to the first information corresponding to M CCs are selected. For example, in a PRACH occasion, through the previous high-level signaling, there is a mapping relationship described in Table 1 and Table 2. At this time, preambel2 should be selected for transmission in the beam failure request resource set corresponding to CC1 (each beam failure request resource corresponds to (a time domain resource, a frequency domain resource, and a preamble)). The corresponding preambel2 is also selected for transmission in the beam failure request resource set corresponding to CC2, that is, the preambles corresponding to multiple CC indexes are selected for transmission. After beam failure events occur in N CCs, M CCs are selected, where M is a positive integer less than or equal to N, in order to reduce resource loss. Otherwise, the base station needs to establish a corresponding relationship between any two or more CCs and beam failure request resources. Or the base station needs to establish a corresponding relationship between the candidate reference signals of any two or more CCs and the beam failure request resources, and the demand for beam failure request resources is relatively large. That is to say, the beam failure request information is sent implicitly, and through the correspondence between resources and beam failure request information, the terminal selects the resources to be sent, and the base station can know the beam failure request information when receiving the resources sent by the terminal. Since the CC combinations in which the beam failure events occur are different, the reference signals selected in each CC are different. For each CC combination, each selected reference signal combination needs to correspond to the beam failure request resources, so the required beam failure request resources are relatively large, because different CC combinations and different reference signal combinations correspond to different beam failure request resources.

[0281] Table 1

[0282] Preamble Representative's information Preamble1 CC1 Preamble2 CC1,CC2

[0283] Table 2

[0284] Preamble Representative's information Preamble1 CC2 Preamble2 CC1,CC2

[0285] Solution 2.3: The terminal selects one of the N beam failure request processes by itself.

[0286] Solutions 1.1 to 1.5 are to solve the collision problem of N beam failure request resources, allowing more than one beam failure recovery process or PRACH process to run in a time period, corresponding to different CCs or BWPs respectively. Solutions 2.1 to 2.3 are to solve the collision problem of N beam failure recovery processes. Only one beam failure recovery process or PRACH process can be in progress at a time.

[0287] Example 2

[0288] In this embodiment, a beam failure recovery process is described. The base station configures N sets of beam failure recovery parameters for the terminal, which correspond to different CC / BWPs respectively.

[0289] The set of beam failure recovery parameters includes at least one of the following:

[0290] A set of beam failure detection signals, the maximum duration corresponding to the beam failure detection timer, the predetermined threshold corresponding to the beam failure detection counter, a set of candidate reference signals, the correspondence between beam failure request information (i.e., the first information) and beam failure request resources, a beam failure search space, a predetermined threshold corresponding to the beam failure request information sending times counter (i.e., the first information sending times counter), and the maximum duration corresponding to the beam failure response information listening timer.

[0291] For example, the first set of beam failure recovery parameters corresponds to CC1, and the second set of beam failure recovery parameters corresponds to CC2. The beam failure recovery process includes:

[0292] Step 1: beam failure detection. The terminal detects the beam failure detection reference signal corresponding to each CC respectively, and determines whether a beam failure event has occurred in each CC respectively. The maximum duration corresponding to the beam failure detection timer of each CC and the predetermined threshold corresponding to the beam failure detection counter can be independently configured, or use the same value and share a set of configurations.

[0293] Step 2: Selection of new beams. The new beams of each CC are independently selected from the candidate reference signal sets corresponding to each CC. When a beam failure event is detected, the terminal selects a reference signal q for each CC from the candidate reference signal sets corresponding to each CC. newWherein, the link performance of the selected reference signal is higher than a predetermined value. Or only some CCs need to select reference signals from the candidate reference signal set, and some CCs do not have a candidate reference signal set, and the terminal may first report the CC index.

[0294] Step 3: Send beam failure request information. When a beam failure event is detected in a CC, determine the set of CCs that have experienced beam failure events and have not been successfully recovered at the current time, and send beam failure request information in one of the following ways:

[0295] Beam failure request information sending method 1: determine the beam failure request resource corresponding to the first information corresponding to the CC set, and send the beam failure request information on the determined resource, that is, the beam failure request resource corresponds to the first information of multiple CCs in the CC set, for example, select a preamble / PUCCH / SR / PUSCH resource corresponding to {first information corresponding to CC1, first information corresponding to CC2, first information corresponding to CC3} to send the beam failure request information, wherein the CC set includes {CC1, CC2, CC3};

[0296] Method 2 for sending beam failure request information: selecting a subset of the CC set, the first information in the subset having a corresponding beam failure request resource, for example, if there is a preamble / PUCCH / SR / PUSCH resource corresponding to {first information corresponding to CC1, first information corresponding to CC2} in the current timing for sending beam failure request information, the beam failure request information is sent on the beam failure request resource;

[0297] In the above-mentioned beam failure request information sending methods one and two, when a beam failure event is found in a CC, the beam failure recovery timer is started or restarted, the beam failure response information listening timer is started or restarted, and the first information sending times counter is set to 0. At this time, multiple CCs share a beam failure recovery timer, beam failure response information listening timer and first information sending times counter.

[0298] Beam failure request information sending method three: For each CC, the first information corresponding to each CC is sent in the beam failure request resource corresponding to each CC. That is, at this time, the first information corresponding to one CC in the multiple CCs is sent in each beam failure request resource in the multiple beam failure request resources. After the beam failure request information is sent for the first time on the beam failure request resource corresponding to each CC, the beam failure recovery timer, beam failure response information listening timer, and first information sending times counter corresponding to the CC are started, that is, each CC has its own corresponding beam failure recovery timer, beam failure response information listening timer, and first information sending times counter.

[0299] Step 4: monitoring beam failure response information. The method used in step 3 is different, and the action of monitoring beam failure response information is also different. Specifically,

[0300] Monitoring method 1: If the beam failure request information is sent using method 1 and method 2 in step 3, after the terminal sends the first information corresponding to the CC set or the first information corresponding to a subset of the CC set on a beam failure sending resource, it listens to the response information of the base station. If no response information from the base station is heard within the predetermined time period, it returns to step 2.

[0301] Monitoring method 2: If the beam failure request information is sent in method 3 in step 3, the corresponding beam failure request resource of each CC listens to the corresponding beam failure response information. After the beam failure request resource corresponding to each CC is sent, the response information monitoring timer corresponding to the CC is started. If no response information is heard during the operation of the response information monitoring timer, step 2 can be returned.

[0302] Monitoring method three: If the beam failure request information is sent using method three in step three, the corresponding beam failure request resource of each CC listens to the corresponding beam failure response information. Multiple CCs share a beam failure response information monitoring timer. The beam failure response information monitoring timer is started or restarted each time the beam failure request resource is sent.

[0303] After sending the first information on the beam failure request resource, listen to the response information of the base station, the response information includes the C-RNTI / MCS-C-RNTI encrypted DCI sent by the base station in the beam failure recovery search space. When the response information is detected before the beam failure recovery timer or the beam failure response information listening timer times out, it is considered that the beam failure request information is sent successfully, the beam failure recovery process is successfully completed, and the beam failure recovery timer and the beam failure response information listening timer are stopped. Otherwise, when no response information from the base station is detected after the beam failure response information listening timer expires, return to step two. If the beam failure recovery timer expires and the number of times the beam failure request information is sent exceeds a predetermined threshold, it is considered that the beam failure request information is not sent successfully, and an indication information that the beam failure request information is not sent successfully is sent to the upper layer.

[0304] When N CCs are all performing beam failure recovery, the QCL relationship is determined for each CC respectively. For example, from the first predetermined time after sending the beam failure request information corresponding to CCi,i=1,2 (the beam failure request information of multiple CCs can be sent in one beam failure request resource, or the beam failure request information of multiple CCs can be sent in multiple beam failure request resources, and each beam failure request resource includes a beam failure request resource of one CC) to before receiving the reconfiguration or activation information of the quasi-co-site reference signal of the PDCCH of CCi, the demodulation reference signal of the control channel in the beam failure recovery search space of CCi and the demodulation reference signal of the data channel scheduled by the control channel in the beam failure recovery search space of CCi are the same as the reference signal q corresponding to the beam failure request information corresponding to CCi. new The QCL relationship is satisfied between them. That is, the determination of the QCL relationship is performed separately for each CC.

[0305] Step 5: Starting from the second predetermined time after successfully receiving the response information of the beam request information corresponding to CCi from the base station to before receiving the activation or reconfiguration information of the spatial relationship indication information of the PUCCH of CCi from the base station, the spatial filter on CCi adopts the spatial filter of the beam failure request information corresponding to CCi sent by the terminal most recently. Starting from the third predetermined time after successfully receiving the response information of the base station, the demodulation reference signal of CORESET0 and the q corresponding to the CC (such as Pcell) where CORESET0 is located, which is the latest reported new A quasi-co-location relationship is satisfied between them.

[0306] Further, at least one of the first predetermined time to the third predetermined time is obtained according to at least one of the following: the subcarrier spacing of the BWP where the beam failure request resources for sending the beam failure request information corresponding to CCi are located, the subcarrier spacing of the BWP in an activated state in CCi, and the ratio between the subcarrier spacing of the BWP in an activated state in CCi and the subcarrier spacing of the BWP where the beam failure request resources for sending the beam failure request information corresponding to CCi are located.

[0307] Example 3

[0308] In this embodiment, N CCs are configured with a beam failure detection reference signal set, that is, each CC in the N CCs corresponds to a beam failure detection reference signal set. Wherein N is a positive integer greater than 1. Specifically, the beam failure detection reference signal set of CC1 is set 1, the beam failure detection reference signal set of CC2 is set 2, and the beam failure detection reference signal set of CC3 is set 3. The terminal determines whether a beam failure event has occurred in each CC by detecting the beam failure detection reference signal set of each CC. When a beam failure event is detected in a CC, it is necessary to send the beam failure request information (or first information) of the CC. There are two schemes for this purpose:

[0309] Solution 1: Different CCs correspond to different PRACH processes, and / or different CCs correspond to different beam failure timers. Figure 7 As shown, at time t1, a beam failure event occurs in C1. The terminal sends the first information of CC1 on the beam failure request resource of CC1 according to the configuration information of the beam failure request resource of CC1, starts the beam failure recovery timer and beam failure response information listening timer of CC1, and listens to the corresponding response information of CC1.

[0310] At time t2, a beam failure event occurs in C2 and the corresponding response information of CC1 has not been received. The terminal sends the first information of CC2 on the beam failure request resource of CC2 according to the configuration information of the beam failure request resource of CC2, starts the beam failure recovery timer and beam failure response information listening timer of CC2, and listens for the corresponding response information of CC2.

[0311] At time t3, a beam failure event occurs in C3 and the beam failure response information corresponding to CC1 and CC2 has not been received. The terminal sends the first information of CC3 on the beam failure request resource of CC3 according to the configuration information of the beam failure request resource of CC3, starts the beam failure recovery timer and beam failure response information listening timer of CC3, and listens for the response information corresponding to CC3.

[0312] At time t4, the response information of the first information of CC1 sent at time t1 is received, and the response information of the first information sent at time t2 and t3 has not been received, and the beam failure response information monitoring timer started at time t2 has expired. Then, the first information of CC2 can be sent at time t4.

[0313] At time t5, the response information to the first information sent at time t3 has not been received, and the beam failure response information monitoring timer started at time t3 has expired, so the first information of CC3 can be sent at time t5.

[0314] In short, each CC corresponds to a beam failure recovery-PRACH process and each corresponds to its own beam failure timer. While the beam failure recovery process of one CC is in progress, another beam failure recovery process can be started in parallel.

[0315] The above is about each listening to its own response information. Of course, this embodiment does not exclude that after time t3, the terminal can listen to the response information of the preamble sent at each time {t1, t2, t3} (for example, the base station only received one of the three preambles), or can listen to the total response information of the base station including the three preambles sent at the time {t1, t2, t3} in one response information, such as the response information carrying the preamble information, or the beam failure search space 1 corresponds to the beam failure request information of CC1, and the beam failure search space 2 corresponds to the beam failure request information of {CC1, CC2}.

[0316] Solution 2: The scenario is the same as Solution 1, but there can only be one beam failure recovery process at a time.

[0317] like Figure 6 As shown, at time t2, determine the CC set {CC1, CC2} where a beam failure event currently occurs and the beam failure recovery process has not been successfully completed, select a beam failure request resource corresponding to the first information of {CC1, CC2}, and send the beam failure request information on the beam failure request resource. That is, at this time, one beam failure request resource corresponds to the beam failure request information of {CC1, CC2}. Restart the beam failure response information monitoring timer and / or beam failure recovery timer and / or PRACH transmission times timer started at time t1 and set them to 0 (that is, the first information transmission times counter is set to 0).

[0318] At time t3, determine the CC set {CC1, CC2, CC3} where a beam failure event currently occurs and the beam failure recovery process has not been successfully completed, select the beam failure request resource corresponding to the first information of {CC1, CC2, CC3}, and send the beam failure request information on the beam failure request resource. That is, at this time, one beam failure request resource corresponds to the beam failure request information of {CC1, CC2, CC3}. Restart the beam failure response information monitoring timer and / or beam failure recovery timer and / or PRACH transmission times timer started at time t2 and set them to 0.

[0319] At t4, CC1 has completed the beam failure recovery process, and the beam failure response information listening timer started at t3 has expired. The beam failure request resource corresponding to the first information of {CC2, CC3} is selected, and the beam failure response information listening timer is restarted. However, the beam failure recovery timer is not restarted at this time, and the PRACH transmission timer is not set to 0, because no new CC has a beam failure event.

[0320] At time t5, when the response information of the first information {CC1, CC2} sent at time t2 is received, {CC1, CC2} is deleted from {CC2, CC3}, and the beam failure response information monitoring timer started at time t4 has expired, then the first information of CC3 can be sent.

[0321] In summary, in solution 2, when a beam failure event is detected in a new CC, a beam failure recovery process is started. If a beam failure recovery process is already in progress, the CC set that has a beam failure event and has not successfully completed the beam failure recovery process is determined, and one or more beam failure request resources corresponding to the beam failure request information of the CC set are selected. The beam failure request information of the CC set is sent on the selected one or more beam failure request resources, and the beam failure response information monitoring timer and / or beam failure recovery timer and / or PRACH transmission times timer are started or restarted to 0 (i.e., the first information transmission times counter is set to 0). If a response message of a CC / CC set is received, the CC is deleted from the CC set in the subsequent transmission of beam failure request information.

[0322] The beam failure request resources where the beam failure request information of the N CCs is located may be in different CCs or in the same CC. The resources where the response information of the N CCs is located may be in different CCs or in the same CC.

[0323] Furthermore, the beam failure request information (or referred to as first information) corresponding to the one CC includes at least one of the following: a CC index, a BWP index, and indication information of a reference signal in a candidate reference signal set corresponding to the beam failure detection reference signal set.

[0324] The above-mentioned feedback BWP index is because a CC may include multiple BWPs, and each BWP has its corresponding beam failure detection reference signal set; or the beam failure request information may not include the BWP index, and it is agreed that the beam failure request information is the beam failure request information corresponding to the BWP currently in the activated state in the CC; or it is agreed that there is a corresponding relationship between the BWP where the beam failure request resource is located and the BWP where the beam failure detection reference signal is located. Or it is predetermined that only one BWP in a CC has a beam failure detection reference signal. Or the beam failure detection reference signal of the one CC includes the beam failure detection reference signal set of all BWPs in the CC.

[0325] The beam failure request information may be sent through explicit signaling, such as including the beam failure request information in an uplink control channel, or the correspondence between the beam failure request resource and the beam failure request information may be determined through signaling information sent by the base station and / or a predetermined rule, so that the terminal can directly send a reference signal on the beam failure request resource, and the base station can know the corresponding beam failure request information.

[0326] Example 4

[0327] In the relevant standards, after the beam failure request information is sent and before the reconfiguration or activation information of the quasi-co-location reference signal of the PDCCH is received, the demodulation reference signal of the control channel in the beam failure recovery search space and the demodulation reference signal of the data channel scheduled by the control channel in the beam failure recovery search space are equal to the reference signal q corresponding to the latest sent beam failure request information. new The QCL relationship is satisfied between them. However, when the received PDCCH quasi-co-location reference signal is received before the response information sent by the base station is successfully monitored, and / or the received PDCCH quasi-co-location reference signal is an update of the quasi-co-location reference signal of the PDCCH of other CCs, rather than an update of the quasi-co-location reference signal of the PDCCH of the CC corresponding to the beam failure detection reference signal set, after receiving this update message, the demodulation reference signal of the control channel in the beam failure recovery search space and the demodulation reference signal of the data channel scheduled by the control channel in the beam failure recovery search space cannot be consistent with the reference signal q newThe QCL relationship is satisfied between them. The terminal and the base station do not have a consistent understanding of how to obtain the quasi-co-site reference signal of the demodulation reference signal of the control channel in the beam failure recovery search space and the demodulation reference signal of the data channel scheduled by the control channel in the beam failure recovery search space. As a result, the response information cannot be sent down, and the terminal continuously sends beam failure request information, resulting in unnecessary terminal power loss. To this end, the demodulation reference signal of the control channel in the beam failure recovery search space and the demodulation reference signal of the data channel scheduled by the control channel in the beam failure recovery search space should not be consistent with the reference signal q in the time period from when the terminal sends the beam failure request information to when one of the following events occurs. new The QCL relationship is satisfied:

[0328] Event 1: After the terminal detects at least one MCS-C-RNTI or C-RNTI-scrambled DCI in the beam failure recovery search space, it receives an activation or update command for the quasi-co-site reference signal of the PDCCH;

[0329] Event 2: After the terminal detects at least one MCS-C-RNTI or C-RNTI-scrambled DCI in the beam failure recovery search space, it receives an activation or update command for the quasi-co-site reference signal of the PDCCH in the BWP / CC corresponding to the beam failure detection reference signal set;

[0330] Event three: The terminal stops detecting the control channel in the beam failure search space.

[0331] Furthermore, the above is that the QCL relationship between the PDCCH in the beam failure search space and the PDSCH scheduled by the PDCCH in the beam failure search space is based on q new It can be further limited that only when the PDSCH is the PDSCH in the CC corresponding to the beam failure detection reference signal, its QCL relationship is based on q new If it is the PDSCH of other CCs, its QCL relationship is not based on q new Get.

[0332] Example 5

[0333] In this embodiment, the same beam failure request information can be sent on the first type of resources and also on the second type of resources. The terminal selects whether to send it on the first type of resources or the second type of resources according to a predetermined rule.

[0334] Among them, the base station will configure spatial relationship indication information for the first type of resources, that is, the spatial transmit filter of the first type of resources is obtained according to the reference signal indicated in the spatial relationship indication information, that is, the transmit beam of the first type of resources is determined and controlled by the base station. For example, the first type of resources includes PUCCH resources, SR resources, PUSCH, etc.; the base station will not configure spatial relationship indication information for the second type of resources, and the terminal determines the spatial transmit filter of the second type of resources by itself.

[0335] Furthermore, when a beam failure event does not occur in the downlink CC corresponding to the CC where the first type of resources is located, beam failure request information is sent in the first type of resources; when a beam failure event occurs in the downlink CC corresponding to the CC where the first type of resources is located, beam failure request information is sent in the second type of resources.

[0336] Example 6

[0337] In this embodiment, the problem of determining the transmission opportunity of the first information corresponding to the first frequency domain bandwidth in the second frequency domain bandwidth is described. Specifically, when the beam failure request resource of CC1 (i.e., the first frequency domain bandwidth) is the RACH resource in CC2 (i.e., the second frequency domain bandwidth), how to determine the PRACH-occasion is described. There is a corresponding relationship between the time-frequency resources occupied by the PRACH resources (i.e., the PRACH-occasion) and the synchronous broadcast block (SSB, Synchronous Signal Block). Different PRACH-occasions (i.e., the transmission opportunity of the beam failure request information, or the transmission opportunity of the first information) can be frequency-division multiplexed, time-division multiplexed, or code-division multiplexed. One PRACH-occasion may include one or more preamble sequences, and the multiple preamble sequences are code-division multiplexed. To this end, the following schemes may be adopted:

[0338] Alt1: Determined by the configured transmission opportunity index (occasionIndex), in order to ensure that the beam failure request information of CC1 can be reported, it is best to configure the PRACH-occasion corresponding to all SSBs in CC2, or it is best to configure the PRACH-occasion corresponding to the SSB corresponding to the reference signal in the predetermined reference signal set of CC2, where the predetermined reference signal set includes the beam failure detection reference signal set of CC2, and / or the candidate reference signal set.

[0339] Alt2: By configuring the correspondence between (beam failure request information of CC1, one or more SSB indexes of the downlink CC corresponding to CC2), determine the PRACH-occasion of the beam failure request information of CC1 in CC2 according to the SSB index.

[0340] The above scheme is to determine the PRACH-occasion resource where the beam failure request resource of CC1 in CC2 is located by explicit signaling. This embodiment does not exclude that when the PRACH-occasion resource where the beam failure request resource of CC1 in CC2 is located is not configured, the PRACH-occasion resource of the beam failure request resource of CC1 in CC2 in CC2 is determined according to the following Alt3 or Alt4 scheme:

[0341] Alt3: According to the SSB corresponding to a reference signal with link performance higher than a predetermined threshold in the beam failure detection reference signal set of CC2, the PRACH-occasion corresponding to the beam failure request resource of CC1 is obtained. If there is no reference signal with link performance higher than the predetermined threshold in the beam failure reference signal set of CC2, a reference signal with link performance higher than the predetermined threshold can be found in the candidate reference signal set of CC2, and the PRACH-occasion is obtained according to the SSB corresponding to the reference signal.

[0342] Alt4: According to the SSB corresponding to a reference signal whose link performance is higher than a predetermined threshold in the candidate reference signal set of CC1, the PRACH-occasion of the beam failure request resource of CC1 in CC2 is obtained.

[0343] Alt5: According to the corresponding SSB corresponding to the reference signal indication information included in the first information of CC1, the PRACH-occasion of the beam failure request resource of CC1 in CC2 is obtained.

[0344] The SSB corresponding to the above-mentioned reference signal includes: an SSB that has a QCL relationship with the reference signal.

[0345] Example 7

[0346] In this embodiment, in order to solve the problem that a beam failure event occurs in a Pcell but the Scell ​​does not detect the beam failure event, at least one of the following solutions may be adopted:

[0347] Solution 1: There is a beam failure request resource of the Pcell in the Scell. Preferably, both the Pcell and the Scell ​​include the beam failure request resource of the Pcell. For example, the following relationship is determined through signaling information and / or a predetermined rule: (a reference signal in the candidate reference signal set of the Pcell, a beam failure request resource in the Scell, and a beam failure request resource in the Pcell) (i.e., a first information corresponds to an H-type beam failure request resource, and the H-type beam failure request resource includes the beam failure request resource in the Scell ​​and the beam failure request resource in the Pcell), that is, there is a corresponding relationship between a candidate reference signal and the uplink beam failure request resources in more than one CC. When a beam failure event occurs in the Pcell, but not in the Scell, it is preferred to send the beam failure request information of the Pcell in the beam failure request resource in the Scell. If a beam failure event also occurs in the Scell ​​at this time, one of the beam failure request resources in the Pcell or the Scell ​​can be selected to send the beam failure request information of the Pcell. The above is a correspondence between a candidate reference signal of a Pcell and uplink beam failure request resources in more than one CC. This embodiment also excludes an implementation method in which a candidate reference signal of a Scell ​​and uplink beam failure request resources in more than one CC have a correspondence.

[0348] Solution 2: The base station updates the Pcell to the Scell ​​through MAC-CE / DCI.

[0349] Example 8

[0350] In this embodiment, a scheme of how to configure beam failure recovery resources by signaling when beam failure recovery resources of F CCs are included in a CC is described, wherein the beam failure recovery resources include at least one of the following: beam failure request resources and beam failure search space. In particular, the beam failure request resources are PRACH resources. Specifically, CC1 includes PRACH beam failure request resources of {CC1, CC2, CC3}.

[0351] Configuration method 1: F CCs correspond to F sets of configuration information of first-type beam failure recovery parameters and F sets of second-type beam failure recovery parameters. The beam failure recovery parameters of the F CCs are configured independently of each other, and there is no restriction between the parameters.

[0352] like Figure 8 As shown, the configuration information of the beam failure recovery parameters (BeamfailureRecoveryconfig) includes the first type of beam failure recovery parameters and the second type of beam failure recovery parameters, namely Figure 8The BeamfailureRecoveryconfig in is for each CC in F CCs, where the BeamfailureRecoveryconfig includes the following information: PRACH generic (PRACH-Generic), the starting preamble configuration of PRACH, the detection threshold of the beam failure detection reference signal, the correspondence between the candidate reference signal and the preamble resource, the correspondence between the SSB and the PRACH opportunity (PRACH-occasion), the PRACH-occasion index information in the PRACH-occasioni set corresponding to an SSB, the beam failure search space, and the beam failure recovery timer.

[0353] PRACH-Generic includes the following configurations: preamble format configuration included in PRACH, frequency domain resources of PRACH-occasion, target receiving power of PRACH, maximum transmit power of preamble, power increase step, duration of the monitoring timer for beam failure response information sent by the base station, cyclic shift information of preamble, maximum duration corresponding to the beam failure detection timer, and maximum number of times corresponding to the beam failure detection counter.

[0354] Configuration method 2: A set of PRACH-Generic configuration information (i.e., the first type of beam failure recovery parameters) corresponding to beam failure request resources for F CCs, and other configuration information in BeamfailureRecoveryconfig (i.e., the second type of beam failure recovery parameters) are configured as F sets, corresponding to F CCs respectively, such as Fig. 9 shown.

[0355] Further, as described in Example 1, when a preamble corresponds to the first information of multiple CCs, the transmission power of the preamble can be increased, that is, when there is no special configuration, the target receiving power of each preamble is the same, and the target receiving power can be further configured for some preambles. For example, when a preamle corresponds to the first information of multiple CCs, it means that beam failure events have occurred in multiple CCs, then the target receiving power of the preamble can be configured separately, or the target receiving power of the preamble can be determined according to the number of CCs corresponding to the beam failure request information corresponding to the preamble.

[0356] In the above configuration method 1 and configuration method 2, it is further necessary to establish a correspondence between F CCs and F sets of the first type beam failure recovery parameters and / or F sets of the second type beam failure recovery parameters through signaling information and / or predetermined rules.

[0357] Further, if CC1 includes multiple BWPs, and the beam failure recovery resources of CC1 are included in CC2, then CC2 needs to configure a set of first-type beam failure recovery parameters and F sets of the second-type beam failure recovery parameters for each BWP of CC1. In this way, a correspondence between F*Z BWPs and F*Z sets of the first-type beam failure recovery parameters and / or F sets of the second-type beam failure recovery parameters is required. The above is that each CC includes Z BWPs, and this embodiment does not exclude that each CC includes a different number of BWPs.

[0358] Configuration mode three: F CCs correspond to a set of PRACH-Generic configuration information (i.e., the first type of beam failure recovery parameters), and the information in BeamfailureRecoveryconfig other than the candidate reference signal information is also shared by N CCs (i.e., the second type of beam failure recovery parameters). Fig.10 As shown, N CCs share a set of BeamfailureRecoveryconfig configuration information, except that the correspondence between the candidate reference signal set and the preamble includes information on the CC index where the candidate reference signal is located.

[0359] Furthermore, the second type of beam failure recovery parameters may also include: a beam failure detection reference signal set. The first type of beam failure recovery parameters may also include: a maximum duration corresponding to a beam failure detection timer, and a maximum number of times corresponding to a beam failure detection counter.

[0360] Example 9

[0361] When the beam failure request resource of CC1 is in CC2 and CC2 includes more than one BWP, in order to ensure that the beam failure request information of CC1 is reported to the base station in time, one of the following solutions can be adopted:

[0362] Solution 1: Include CC1's beam failure request resources in each BWP of CC2. When CC1 has a beam failure event, the beam failure request information of CC1 is sent in the BWP of the currently activated BWP of CC2.

[0363] Solution 2: Include CC1's beam failure request resources in some BWPs of CC2. When CC1 has a beam failure event, switch to CC2's BWP with beam failure request resources. When there are multiple BWPs that meet the conditions, switch to a predetermined BWP, such as the BWP with the lowest BWP index.

[0364] Another embodiment of the present invention provides a beam failure recovery device, comprising:

[0365] The first beam failure recovery module is used to perform any of the following when the intersection of time domain resources corresponding to the beam failure recovery process of N frequency domain bandwidths is not empty:

[0366] Beam failure recovery method 1: select a beam failure recovery process of a frequency domain bandwidth from among beam failure recovery processes of N frequency domain bandwidths, perform the beam failure recovery process of the selected frequency domain bandwidth, and terminate or suspend the beam failure recovery process of the unselected frequency domain bandwidth;

[0367] Beam failure recovery method 2: merging beam failure recovery processes of N frequency domain bandwidths into one beam failure recovery process, and performing the merged beam failure recovery process;

[0368] Beam failure recovery method three: performing beam failure recovery processes of N frequency domain bandwidths in parallel.

[0369] It should be noted that the non-empty intersection between the time domain resources corresponding to the beam failure recovery processes of the N frequency domain bandwidths means that the non-empty intersection between the time domain resources corresponding to the beam failure recovery processes of any N1 frequency domain bandwidths among the N frequency domain bandwidths, where N1 is an integer greater than or equal to 1 and less than or equal to N.

[0370] In the above-mentioned beam failure recovery method 1, the first beam failure recovery module can use any method to implement the beam failure recovery process of selecting a frequency domain bandwidth in the beam failure recovery process of N frequency domain bandwidths, and the specific implementation method is not used to limit the protection scope of the embodiment of the present invention. For example, the first beam failure recovery module is specifically used to implement the beam failure recovery process of selecting a frequency domain bandwidth in the beam failure recovery process of N frequency domain bandwidths by using at least one of the following methods:

[0371] Selecting a beam failure recovery process of a frequency domain bandwidth from among the beam failure recovery processes of the N frequency domain bandwidths according to the second information;

[0372] When beam failure events occur in both the primary cell Pcell and the secondary cell Scell, the beam failure recovery process of the Pcell is selected, and the beam failure recovery process of the Scell ​​is suspended or terminated;

[0373] When a beam failure event occurs in one secondary cell and a beam failure process is in progress in another secondary cell, the communication node determines for which secondary cell the beam failure event is to be processed;

[0374] The one cell corresponds to one frequency domain bandwidth.

[0375] In the above-mentioned beam failure recovery method 1, terminating or pausing the beam failure recovery process of the unselected frequency domain bandwidth includes at least one of the following:

[0376] Pause or terminate the beam failure timer corresponding to the unselected frequency domain bandwidth;

[0377] Setting the first information sending times counter corresponding to the unselected frequency domain bandwidth to a predetermined value;

[0378] The beam failure timer includes at least one of the following: a beam failure recovery timer and a beam failure response information monitoring timer.

[0379] The second information includes at least one of the following:

[0380] Frequency domain bandwidth priority, frequency domain bandwidth parameters, the number of times the first information corresponding to the frequency domain bandwidth has been sent, parameters of the beam failure request resources corresponding to the frequency domain bandwidth, received signaling information, whether the frequency domain bandwidth includes special cells SPcell, time advance information, and whether the beam failure recovery process corresponding to the frequency domain bandwidth is currently in the listening response information stage.

[0381] The parameters of the frequency domain bandwidth include at least one of the following:

[0382] The frequency domain bandwidth index, the frequency domain bandwidth size, the frequency domain bandwidth of the bandwidth part BWP in the frequency domain bandwidth that is in an activated state, the subcarrier spacing of the BWP in the frequency domain bandwidth that is in an activated state, the frequency domain bandwidth of a BWP in the frequency domain bandwidth where a beam failure event occurs, and the subcarrier spacing of a BWP in the frequency domain bandwidth where a beam failure event occurs.

[0383] The parameters of the beam failure request resource include at least one of the following: frequency domain parameters, time domain parameters, power parameters, and cycle size.

[0384] In the above-mentioned beam failure recovery method 2, the first beam failure recovery module is specifically used to adopt at least one of the following methods to realize merging N beam failure recovery processes into one beam failure recovery process, and perform the merged beam failure recovery process:

[0385] N frequency domain bandwidths correspond to one beam failure timer;

[0386] N frequency domain bandwidths correspond to a first information sending times counter;

[0387] Only one beam failure timer is running at a time;

[0388] When a beam failure event occurs in a frequency domain bandwidth, a beam failure recovery timer is started or restarted;

[0389] When a beam failure event occurs in a frequency domain bandwidth, the first information sending times counter is set to 0;

[0390] After sending the first information corresponding to a frequency domain bandwidth set, starting or restarting the beam failure response information monitoring timer;

[0391] When the first information corresponding to a frequency domain bandwidth needs to be sent, determine a frequency domain bandwidth set in which a beam failure event currently occurs and has not been successfully recovered, select one or more beam failure request resources according to the determined frequency domain bandwidth set, and send the first information corresponding to the frequency domain bandwidth set on the one or more beam failure request resources;

[0392] When the first information corresponding to a frequency domain bandwidth needs to be sent, determine a frequency domain bandwidth set in which a beam failure event currently occurs and has not been successfully recovered, and send the first information corresponding to the frequency domain bandwidth set;

[0393] When the first information corresponding to a frequency domain bandwidth needs to be sent, determine a frequency domain bandwidth set in which a beam failure event currently occurs and has not been successfully recovered, select M frequency domain bandwidths from the determined frequency domain bandwidth set, select one or more beam failure request resources according to the selected M frequency domain bandwidths, and send the first information corresponding to the M frequency domain bandwidths on the one or more beam failure request resources;

[0394] When the first information corresponding to a frequency domain bandwidth needs to be sent, determine a frequency domain bandwidth set in which a beam failure event currently occurs and has not been successfully recovered, select M frequency domain bandwidths from the determined frequency domain bandwidth set, and send the first information corresponding to the M frequency domain bandwidths;

[0395] Monitor C response information, where one response information is response information of the first information corresponding to one or more frequency domain bandwidth sets, and the value of C is a non-negative integer less than or equal to N;

[0396] When response information corresponding to a frequency domain bandwidth set is received, it is determined that a beam failure recovery process corresponding to the frequency domain bandwidth set is successfully completed;

[0397] The first information includes at least one of the following: a CC index, an index of a BWP currently activated in the CC, an index of a bandwidth portion BWP in which a beam failure occurs in the CC, and indication information of a new reference signal selected from a candidate reference signal set corresponding to a frequency domain bandwidth. Each of the N frequency domain bandwidths corresponds to one beam failure timer;

[0398] The beam failure timer includes at least one of the following: a beam failure recovery timer, a beam failure response information monitoring timer;

[0399] The frequency domain bandwidth set includes one or more frequency domain bandwidths.

[0400] In an embodiment of the present invention, the first beam failure recovery module is specifically used to implement sending the first information corresponding to the frequency domain bandwidth set on the one beam failure request resource in the following manner: sending a reference signal in the one beam failure request resource, wherein there is a corresponding relationship between the one reference signal and the first information corresponding to the frequency domain bandwidth set; or, sending information bits representing the first information corresponding to the frequency domain bandwidth set on the one beam failure request resource; wherein the corresponding relationship between the reference signal of the one beam failure request resource and the first information corresponding to the frequency domain bandwidth set may be included in the received signaling information;

[0401] The first beam failure recovery module is specifically used to implement sending the first information corresponding to the frequency domain bandwidth set on the multiple beam failure request resources in any one of the following ways: sending the first information corresponding to the frequency domain bandwidth set on each beam failure request resource in the multiple beam failure request resources; sending the first information corresponding to a frequency domain bandwidth in the frequency domain bandwidth set on each beam failure request resource in the multiple beam failure request resources; sending the first information corresponding to part of the frequency domain bandwidths in the frequency domain bandwidth set on each beam failure request resource in the multiple beam failure request resources;

[0402] The first beam failure recovery module is specifically used to implement the selection of one or more beam failure request resources according to the determined frequency domain bandwidth set in the following manner: selecting one or more beam failure request resources from P beam failure request resources according to the determined frequency domain bandwidth set;

[0403] The selecting M frequency domain bandwidths from the determined frequency domain bandwidth set comprises selecting M frequency domain bandwidths from the determined frequency domain bandwidth set according to second information;

[0404] The monitoring of C response information includes one of the following: monitoring the C response information in a beam failure search space; monitoring one response information among the C response information corresponding to the beam failure search space in each beam failure search space in the C beam failure search spaces; monitoring the C response information in one or more frequency domain bandwidths.

[0405] The P beam failure request resources include any one of the following:

[0406] P beam failure request resources among the beam failure request resources corresponding to the N frequency domain bandwidths;

[0407] The union of beam failure request resources corresponding to N frequency domain bandwidths;

[0408] The beam failure request resources corresponding to the first information corresponding to the M frequency domain bandwidths in the union of the beam failure request resources corresponding to the N frequency domain bandwidths;

[0409] The union of beam failure request resources corresponding to the M frequency domain bandwidths;

[0410] A beam in one frequency domain bandwidth fails to request resources.

[0411] In the above beam failure recovery method three, the maximum number of beam failure recovery processes performed in parallel is associated with the number of frequency domain bandwidths configured with beam failure recovery parameters; and / or the maximum number of beam failure recovery processes performed in parallel is less than or equal to a predetermined value. For example, the maximum number of beam failure recovery processes in which the intersection between the corresponding time domain resources in the beam failure recovery processes performed in parallel is not empty is less than or equal to the number of frequency domain bandwidths configured with beam failure recovery parameters.

[0412] In the above beam failure recovery method 3, no conditional constraints may be imposed on the beam failure recovery processes of N frequency domain bandwidths being performed in parallel. For example, the beam failure recovery processes of N frequency domain bandwidths being performed in parallel are independent of each other and do not affect each other.

[0413] Of course, certain conditions may also be imposed on the beam failure recovery process of N frequency domain bandwidths performed in parallel. For example, in the beam failure recovery process of N frequency domain bandwidths performed in parallel, the first information corresponding to one frequency domain bandwidth can only be sent on one uplink beam failure request resource at a time.

[0414] For example, the first beam failure recovery module is specifically configured to implement the beam failure recovery process of N frequency domain bandwidths in parallel by adopting at least one of the following methods:

[0415] Each frequency domain bandwidth in the N frequency domain bandwidths corresponds to a beam failure timer;

[0416] There are Y1 frequency domain bandwidths in the N frequency domain bandwidths whose intersections between the time periods in which the corresponding beam failure timers are running are not empty; where Y1 is an integer greater than or equal to 1 and less than or equal to N;

[0417] At one point in time, one or more of the N beam failure timers corresponding to the N frequency domain bandwidths are running;

[0418] Each of the N frequency domain bandwidths corresponds to a first information sending times counter;

[0419] When a beam failure event occurs in a first frequency domain bandwidth and a beam failure recovery process of at least a second frequency domain bandwidth is in progress, start a beam failure recovery timer corresponding to the first frequency domain bandwidth; wherein the first frequency domain bandwidth and the second frequency domain bandwidth are two different frequency domain bandwidths among the N frequency domain bandwidths;

[0420] When the first information corresponding to the third frequency domain bandwidth needs to be sent and there is at least a beam failure recovery process of the fourth frequency domain bandwidth in progress, the first information corresponding to the third frequency domain bandwidth is sent on the beam failure request resource corresponding to the third frequency domain bandwidth; wherein the third frequency domain bandwidth and the fourth frequency domain bandwidth are two different frequency domain bandwidths among the N frequency domain bandwidths;

[0421] Monitoring N response information, where one response information among the N response information is beam failure response information corresponding to one or more frequency domain bandwidths among the N frequency domain bandwidths;

[0422] In the same time period, when the intersection of the time domain resources occupied by the beam failure request resources corresponding to the N first information of the N frequency domain bandwidths is not empty, M first information of the N first information are sent in one channel; or M first information of the N first information are sent in M ​​channels;

[0423] In the same time period, when the intersection of the time domain resources occupied by the N beam failure request resources corresponding to the N first information is empty, the corresponding first information is sent on each beam failure request resource;

[0424] Sending N first information, where an intersection of N beam failure request resources corresponding to the N first information in the same time period is empty;

[0425] Receive signaling information, where the signaling information includes a correspondence between a frequency domain bandwidth, the beam failure request resource, and the first information, and an intersection between time domain resources occupied by the beam failure request resources of the N frequency domain bandwidths in the signaling information is empty;

[0426] When the response information corresponding to the fifth frequency domain bandwidth is received before the beam failure response information listening timer corresponding to the fifth frequency domain bandwidth times out, it is determined that the beam failure recovery process corresponding to the fifth frequency domain bandwidth is successfully completed, and the beam failure timer corresponding to the fifth frequency domain bandwidth is stopped; wherein the fifth frequency domain bandwidth is any one of the N frequency domain bandwidths;

[0427] The first information includes at least one of the following: a CC index, an index of a BWP currently activated in a CC, an index of a bandwidth part BWP where beam failure occurs in a CC, and indication information of a new reference signal selected from a candidate reference signal set corresponding to a frequency domain bandwidth;

[0428] The beam failure timer includes at least one of the following: a beam failure recovery timer, a beam failure response information monitoring timer;

[0429] Wherein, M is a positive integer greater than or equal to 1 and less than or equal to N.

[0430] In an embodiment of the present invention, the first beam failure recovery module is specifically used to implement a beam failure recovery process of a frequency domain bandwidth in the following manner, including: a beam failure timer of a frequency domain bandwidth is running.

[0431] In an embodiment of the present invention, the first beam failure recovery module is used to send M first information among the N first information in one channel; or when M first information among the N first information is sent in M ​​channels, the one channel or the M channels satisfies one of the following characteristics:

[0432] The one channel corresponds to one of the N beam failure request resources in the same time period;

[0433] The one channel corresponds to a beam failure request resource other than the N beam failure request resources in the same time period;

[0434] There is a corresponding relationship between the reference signal of the one channel and the M first information; or the one channel includes information bits representing the M first information;

[0435] The time domain resources occupied by the M channels are a subset of the union of the time domain resources occupied by the N beam failure request resources in the same time period;

[0436] The time domain resources occupied by each of the M channels are a subset of the union of the time domain resources occupied by the N beam failure request resources in the same time period, and the intersection of time domain resources occupied by different channels is empty.

[0437] In the embodiment of the present invention, the M first information are selected according to the second information.

[0438] In an embodiment of the present invention, the first beam failure recovery module is specifically used to implement monitoring of N response information in one of the following ways: monitoring one response information among the N response information in each beam failure search space in N beam failure search spaces; monitoring the N response information in a beam failure search space; monitoring the N response information in one or more frequency domain bandwidths.

[0439] In this embodiment of the present invention, each of the frequency domain bandwidths to which the corresponding first information has been sent satisfies at least one of the following:

[0440] During a time period from a first predetermined time after the first information corresponding to the frequency domain bandwidth is sent to an occurrence of a predetermined event, a predetermined demodulation reference signal and a reference signal included in the first information corresponding to the frequency domain bandwidth satisfy a quasi-co-site QCL relationship;

[0441] From a second predetermined time after successfully receiving the response information of the frequency domain bandwidth to before receiving the activation or reconfiguration information of the spatial relationship indication information of the uplink control channel of the frequency domain bandwidth, the spatial transmission filter of the uplink channel and / or the signal in the frequency domain bandwidth is acquired according to the spatial transmission filter of the first information corresponding to the frequency domain bandwidth;

[0442] Starting from a third predetermined time after successfully receiving the response information of the frequency domain bandwidth, the demodulation reference signal in the control channel resource set CORESET0 and the reference signal included in the first information corresponding to the frequency domain bandwidth of CORESET0 that is sent satisfy a QCL relationship;

[0443] Wherein, the predetermined demodulation reference signal includes at least one of the following: a demodulation reference signal of a control channel in a beam failure recovery search space of the frequency domain bandwidth; a demodulation reference signal of a data channel scheduled by a control channel in the beam failure recovery search space of the frequency domain bandwidth; a demodulation reference signal of a data channel in the frequency domain bandwidth scheduled by a control channel in the beam failure recovery search space of the frequency domain bandwidth; a demodulation reference signal of a control channel in the beam failure recovery search space of the frequency domain bandwidth; a demodulation reference signal of a data channel in the frequency domain bandwidth scheduled by a control channel in the beam failure recovery search space of the frequency domain bandwidth;

[0444] The predetermined event includes one of the following:

[0445] After detecting at least one response information in the beam failure recovery search space of the frequency domain bandwidth, receiving reconfiguration or activation information of a quasi-co-site reference signal of a downlink control channel of the frequency domain bandwidth;

[0446] After at least one response information is detected in the beam failure recovery search space of the frequency domain bandwidth, reconfiguration or activation information of a quasi-co-site reference signal of a downlink control channel in the frequency domain bandwidth corresponding to the beam failure detection reference signal set is received;

[0447] Receiving reconfiguration or activation information of a quasi-co-site reference signal of a downlink control channel of the frequency domain bandwidth;

[0448] Receiving reconfiguration or activation information of a quasi-co-location reference signal of a downlink control channel;

[0449] Stop detecting the control channel in the beam failure search space of the frequency domain bandwidth.

[0450] At least one of the first scheduled time, the second scheduled time, and the third scheduled time is obtained according to at least one of the following:

[0451] The subcarrier spacing of the BWP where the beam failure request resource for sending the first information corresponding to the frequency domain bandwidth is located;

[0452] The subcarrier spacing of the BWP in the frequency domain bandwidth in an activated state;

[0453] The ratio between the subcarrier spacing of the BWP in the activated state in the frequency domain bandwidth and the subcarrier spacing of the BWP where the beam failure request resource for sending the first information corresponding to the frequency domain bandwidth is located.

[0454] In the embodiment of the present invention, the beam failure request resources corresponding to the N frequency domain bandwidths belong to the same frequency domain bandwidth; or belong to different frequency domain bandwidths respectively;

[0455] And / or, the beam failure search spaces corresponding to the N frequency domain bandwidths belong to the same frequency domain bandwidth; or belong to different frequency domain bandwidths respectively.

[0456] In the embodiment of the present invention, one of the frequency domain bandwidths includes at least one of the following: one carrier component CC, one BWP, and one physical resource block set;

[0457] And / or, the first information corresponding to a CC includes first information corresponding to a BWP in the CC, wherein the BWP includes one of the following: a BWP that is currently in an activated state in the CC; a BWP corresponding to a reference signal corresponding to the reference signal indication information included in the first information corresponding to the CC; a BWP corresponding to the BWP indication information included in the first information corresponding to the CC.

[0458] In this embodiment of the present invention, one frequency domain bandwidth includes at least one of the following: one carrier component CC and one BWP.

[0459] In the embodiment of the present invention, the intersection of the time domain resources corresponding to the beam failure recovery processes of the N frequency domain bandwidths is not empty and includes at least one of the following:

[0460] When the first information corresponding to one frequency domain bandwidth needs to be sent, a beam failure recovery process of at least another frequency domain bandwidth is in progress;

[0461] When the first information corresponding to one frequency domain bandwidth needs to be sent, at least beam failure response information of another frequency domain bandwidth is being monitored;

[0462] In the intersection part between the time domain resources corresponding to the beam failure recovery process of the N frequency domain bandwidths, all the frequency domain bandwidths in the N frequency domain bandwidth parts have a beam failure event and have not been successfully recovered;

[0463] Among them, the time domain resources corresponding to the beam failure recovery process include one of the following: the time period from detecting the beam failure event to monitoring the beam failure response information; the time period from detecting the beam failure event to stopping monitoring the control channel in the beam failure search space; the time period from sending the first information corresponding to the frequency domain bandwidth to monitoring the beam failure response information; the time period from sending the first information to stopping monitoring the control channel in the beam failure search space; the time period when the beam failure recovery timer runs; the time period when the beam failure response information monitoring timer runs.

[0464] In another embodiment of the present invention, it also includes:

[0465] A beam failure detection module is used to determine whether a beam failure event occurs in each frequency domain bandwidth by detecting the beam failure detection reference signal in the beam failure detection reference signal set corresponding to each frequency domain bandwidth; wherein the beam failure detection reference signal sets corresponding to different frequency domain bandwidths are different.

[0466] The embodiment of the present invention implements the beam failure recovery process of N CCs when the time domain resources corresponding to the beam failure recovery process of N CCs collide, and quickly recovers the communication links of multiple frequency domain bandwidths.

[0467] The specific implementation process of the above-mentioned beam failure recovery device is the same as the specific implementation process of the beam failure recovery method in the aforementioned embodiment, and will not be repeated here.

[0468] Another embodiment of the present invention provides a beam failure recovery device, including a processor and a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, and when the instructions are executed by the processor, any of the above-mentioned beam failure recovery methods is implemented.

[0469] Another embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of any one of the above-mentioned beam failure recovery methods are implemented.

[0470] Another embodiment of the present invention provides a device for determining beam failure recovery parameters, including:

[0471] An information determination module is used to determine at least one of the following information according to signaling information and / or predetermined rules: a correspondence between a beam failure request resource and first information of E frequency domain bandwidths; conditions that need to be met for beam failure request resources of G frequency domain bandwidths; a correspondence between a first information and H-type resources; a sending opportunity of the first information corresponding to the first frequency domain bandwidth in the second frequency domain bandwidth; beam failure recovery parameter information when a frequency domain bandwidth includes beam failure recovery resources of F frequency domain bandwidths; wherein E, F, G, and H are positive integers greater than 1.

[0472] In another embodiment of the present invention, it also includes:

[0473] The second beam failure recovery module is used to perform a beam failure recovery process according to the determined information. For specific information on how to perform a beam failure recovery process according to the determined information, reference may be made to the implementation process of other embodiments, such as performing at least one of the following processes of Pcell and / or Scell ​​according to the determined information: beam failure detection, new beam selection, beam failure request information transmission, beam failure response information monitoring, QCL parameter determination, spatial transmission filter determination, etc., which will not be repeated here.

[0474] In the embodiment of the present invention, for example, the signaling information includes a correspondence between a beam failure request resource and the first information of E frequency domain bandwidths. For example, when the beam failure recovery process of N frequency domain bandwidths is performed in parallel, M first information of the N first information is sent in one channel; or when M first information of the N first information is sent in M ​​channels, the first information of the E frequency domain bandwidths is the M first information.

[0475] In the embodiment of the present invention, the reference signal includes at least one of the following: a preamble, a demodulation reference signal, and a measurement reference signal.

[0476] In the embodiment of the present invention, a resource includes one of the following: a preamble, a PUCCH resource, a PUSCH resource, and an SR resource.

[0477] In an embodiment of the present invention, the information determination module is specifically used to implement the conditions that need to be satisfied by determining the beam failure request resources of G frequency domain bandwidths in at least one of the following ways:

[0478] The intersection of the time domain resources occupied by the beam failure request resources of the G frequency domain bandwidths in the same time period is empty;

[0479] One random access transmission opportunity does not include beam failure request resources of more than one frequency domain bandwidth.

[0480] A transmission opportunity may be a PRACH-occasion, or may be a resource of a periodic uplink channel resource in a period.

[0481] In the embodiment of the present invention, the information determination module is specifically used to determine the corresponding relationship between the first information and the H-type resource in at least one of the following ways:

[0482] The signaling information includes a correspondence between the first information and the H-class resource;

[0483] The first and second category resources included in the H category resources satisfy at least one of the following characteristics: the first category resources are associated with a spatial relationship indication information; the second category resources are not associated with spatial relationship indication information; the first category resources include one of the following: physical uplink control channel PUCCH resources, PRACH resources, scheduling request SR resources; the second category resources include PRACH resources;

[0484] The frequency domain bandwidths where the class H resources are located are different;

[0485] The H-type resources include resources located in different bandwidth parts BWP of a carrier component CC;

[0486] The H-type resources include resources in different CCs;

[0487] The first information is first information corresponding to a frequency domain bandwidth or first information corresponding to a frequency domain bandwidth set. For example, the first information corresponding to the frequency domain bandwidth set {CC1, CC2} includes {first information corresponding to CC1, first information corresponding to CC2}.

[0488] In this embodiment of the present invention, the second beam failure recovery module is further used to:

[0489] Sending the first information in one or more types of resources in the H-type resources, wherein the BWP where the one or more types of resources are located is currently in an activated state;

[0490] Sending the first information in one or more types of resources in the H-type resources, wherein no beam failure event occurs in the frequency domain bandwidth where the one or more types of resources are located;

[0491] When a beam failure event occurs in all frequency domain bandwidths where the H-class resources are located, sending the first information in one or more types of resources in the H-class resources;

[0492] When no beam failure event occurs in the frequency domain bandwidth where the first type of resources associated with the first information are located, sending the first information in the first type of resources;

[0493] When a beam failure event occurs in the frequency domain bandwidth where the first type of resources associated with the first information are located, the first information is sent in the second type of resources.

[0494] In an embodiment of the present invention, the information determination module is specifically used to determine a sending opportunity of the first information corresponding to the first frequency domain bandwidth in the second frequency domain bandwidth by adopting one of the following methods:

[0495] The signaling information includes a correspondence between first information corresponding to the first frequency domain bandwidth and a transmission opportunity index in the second frequency domain bandwidth;

[0496] The signaling information includes a correspondence between the first information corresponding to the first frequency domain bandwidth and the synchronization broadcast block SSB index corresponding to the second frequency domain bandwidth;

[0497] Determine the transmission opportunity according to an SSB index corresponding to a reference signal with a link performance higher than a predetermined threshold in the beam failure detection reference signal set corresponding to the second frequency domain bandwidth;

[0498] Determine the transmission opportunity according to an SSB index corresponding to a reference signal whose link performance is higher than a predetermined threshold in the candidate reference signal set corresponding to the second frequency domain bandwidth;

[0499] Determine the transmission opportunity according to an SSB index corresponding to a reference signal whose link performance is higher than a predetermined threshold in the candidate reference signal set corresponding to the first frequency domain bandwidth;

[0500] Determine the transmission opportunity according to the SSB corresponding to the reference signal included in the first information of the first frequency domain bandwidth;

[0501] Among them, the SSB corresponding to the one reference signal includes an SSB that satisfies a quasi co-location relationship with the one reference signal.

[0502] In an embodiment of the present invention, the information determination module is specifically used to implement the correspondence between the first information corresponding to the first frequency domain bandwidth and the transmission opportunity index in the second frequency domain bandwidth included in the signaling information in the following manner: the signaling information includes the first information, one or more transmission opportunity index information, and reference signal sequence information in the beam failure request resource;

[0503] Alternatively, the information determination module is specifically used to implement the correspondence between the first information corresponding to the first frequency domain bandwidth included in the signaling information and the SSB index in the following manner: the signaling information includes the first information, one or more SSB indexes, and reference signal sequence information in the beam failure request resource.

[0504] In an embodiment of the present invention, the information determination module is specifically used to implement the beam failure recovery parameter information in the case of determining a beam failure recovery resource including first information of F frequency domain bandwidths in a frequency domain bandwidth in at least one of the following ways:

[0505] The F frequency domain bandwidths correspond to F sets of first type beam failure recovery parameter information and F sets of second type beam failure recovery parameter information;

[0506] The F frequency domain bandwidths correspond to a set of first type beam failure recovery parameter information and F sets of second type beam failure recovery parameter information;

[0507] The F frequency domain bandwidths correspond to a set of first-type beam failure recovery parameter information and a set of second-type beam failure recovery parameter information;

[0508] Determine, according to signaling information and / or a predetermined rule, a correspondence between F frequency domain bandwidths and F sets of the first type of beam failure recovery parameters and / or F sets of the second type of beam failure recovery parameters;

[0509] Among them, the beam failure recovery resource includes at least one of the following: a beam failure request resource and a beam failure search space resource.

[0510] In an embodiment of the present invention, the first type of beam failure recovery parameter information includes at least one of the following configuration information:

[0511] The preamble format information included in PRACH (the parameter can be prach-ConfigurationIndex), frequency domain resource information of PRACH (the reference can be msg1-FDM and / or msg1-FrequencyStart), target receiving power information of PRACH, maximum transmit power information of preamble, power increase step information, maximum duration information of response information listening timer, cyclic shift information of preamble (the parameter can be zeroCorrelationZoneConfig), maximum duration corresponding to beam failure detection timer, and maximum number of times corresponding to beam failure detection counter.

[0512] In this embodiment of the present invention, the second type of beam failure recovery parameter information includes at least one of the following:

[0513] The starting logical root index information of the preamble, the performance threshold information of the beam failure detection reference signal, the correspondence information between the candidate reference signal and the preamble, the mapping relationship information between the SSB and the PRACH transmission opportunity (for example, the parameter is the ssb-perRACH-Occasion information), the PRACH transmission opportunity index information in the PRACH transmission opportunity set corresponding to an SSB (for example, the parameter is the ra-ssb-OccasionMask Index), the beam failure search space, the beam failure recovery timer, and the candidate reference signal set.

[0514] In this embodiment of the present invention, the first information includes at least one of the following:

[0515] CC index, index of the BWP currently activated in the CC, index of the BWP in the bandwidth part where beam failure occurs in the CC, indication information of a new reference signal selected from the candidate reference signal set corresponding to the frequency domain bandwidth, beam failure request information, and information sent when a beam failure event is detected by detecting a reference signal set.

[0516] In the embodiment of the present invention, the frequency domain bandwidth includes at least one of the following: BWP, CC, and a physical resource block set.

[0517] The specific implementation process of the above-mentioned beam failure recovery parameter determination device is the same as the specific implementation process of the beam failure recovery parameter determination method in the aforementioned embodiment, which will not be repeated here.

[0518] See also Fig.11 Another embodiment of the present invention provides a method for determining a quasi co-location reference signal, comprising:

[0519] Step 1101: Determine a second type of frequency domain bandwidth corresponding to a first type of frequency domain bandwidth.

[0520] In the embodiment of the present invention, the second type of frequency domain bandwidth corresponding to the first type of frequency domain bandwidth may be any frequency domain bandwidth, for example, a frequency domain bandwidth whose beam correlation with the first type of frequency domain bandwidth is greater than or equal to a preset threshold.

[0521] In the embodiment of the present invention, a beam failure detection reference signal is configured for the first type of frequency domain bandwidth, but a beam failure detection reference signal is not configured for the second type of frequency domain bandwidth.

[0522] In an embodiment of the present invention, the second type of frequency domain bandwidth corresponding to the first type of frequency domain bandwidth is determined according to at least one of the following information:

[0523] received signaling information, wherein the received signaling information includes the second type of frequency domain bandwidth corresponding to the first type of frequency domain bandwidth;

[0524] The signaling information sent includes the second type of frequency domain bandwidth corresponding to the first type of frequency domain bandwidth;

[0525] The frequency domain bandwidth index where the first type of reference signal is located, wherein there is at least one first type of reference signal in the second type of frequency domain bandwidth;

[0526] The frequency domain bandwidth index where the second type of reference signal is located, wherein there is at least one second type of reference signal in the second type of frequency domain bandwidth;

[0527] The bandwidth (Band) where the first type of frequency domain bandwidth is located, wherein the second type of frequency domain bandwidth is located in the bandwidth where the first type of frequency domain bandwidth is located;

[0528] One second-type frequency domain bandwidth corresponds to one or more first-type frequency domain bandwidths;

[0529] One first-type frequency domain bandwidth corresponds to one or more second-type frequency domain bandwidths;

[0530] The first type of frequency domain bandwidth and the second type of frequency domain bandwidth are different or the same frequency domain bandwidths.

[0531] The frequency domain bandwidth includes at least one of the following: CC, BWP, and a physical resource block set.

[0532] Step 1102: When a beam failure event is detected in accordance with a first type of reference signal of a first type of frequency domain bandwidth, third information is sent; wherein the third information includes at least one of the following information: reference signal index information of a second type of reference signal, frequency domain bandwidth index information of the first type of frequency domain bandwidth.

[0533] In this embodiment of the present invention, the second type of reference signal refers to a reference signal in a candidate reference signal set.

[0534] In the embodiment of the present invention, it satisfies at least one of the following characteristics:

[0535] The first type of reference signal and the demodulation reference signal of the control channel in the first type of frequency domain bandwidth satisfy a quasi-co-location relationship;

[0536] The first type of reference signals includes reference signals in a beam failure detection reference signal set of the first type of frequency domain bandwidth;

[0537] The first type of reference signal is in the first type of frequency domain bandwidth;

[0538] The second type of reference signal is in the first type of frequency domain bandwidth;

[0539] After sending the third information, monitoring response information corresponding to the third information in a downlink control channel in the first type of frequency domain bandwidth and a downlink control channel in the second type of frequency domain bandwidth;

[0540] After sending the third information, a response message is monitored in at least one of the downlink control channels in the first type of frequency domain bandwidth and the downlink control channels in the second type of frequency domain bandwidth, and the sending of the third information is stopped, and the beam failure timer corresponding to the third information is stopped;

[0541] The beam failure timer includes at least one of the following: a beam failure recovery timer and a beam failure response information monitoring timer.

[0542] Step 1103: starting from the fourth predetermined moment, the quasi-co-site reference signal of the downlink signal in the second type of frequency domain bandwidth is acquired or updated according to the third information and / or the predetermined rule, and / or, starting from the fifth predetermined moment, the spatial transmit filter of the uplink signal in the second type of frequency domain bandwidth is acquired or updated according to the third information and / or the predetermined rule.

[0543] In the embodiment of the present invention, the quasi co-site reference signal of the downlink signal in the second-type frequency domain bandwidth is acquired according to the third information and / or a predetermined rule, including at least one of the following:

[0544] The quasi-co-site reference signal of the downlink signal in the second type of frequency domain bandwidth with respect to the first type of quasi-co-site parameter is updated to the second type of reference signal corresponding to the reference signal index information; or, the quasi-co-site reference signal of the downlink signal in the second type of frequency domain bandwidth with respect to the first type of quasi-co-site parameter is updated to the third type of reference signal;

[0545] The quasi-co-site reference signal of the second type of quasi-co-site parameter of the downlink signal in the second type of frequency domain bandwidth is updated to the third type of reference signal; or, the quasi-co-site reference signal of the second type of quasi-co-site parameter of the downlink signal in the second type of frequency domain bandwidth is updated to the second type of reference signal corresponding to the index information of the reference signal of the first type of index information;

[0546] Wherein, the first type of quasi co-location parameters includes at least one of the following quasi co-location parameters: spatial reception parameters, Doppler frequency shift, average delay;

[0547] The second type of quasi-co-location parameters includes at least one of the following quasi-co-location parameters: Doppler spread, delay spread;

[0548] Among them, the third type of reference signal satisfies at least one of the following characteristics: the third type of reference signal is located in the second type of frequency domain bandwidth; there is a corresponding relationship between the third type of reference signal and the second type of reference signal; there is a corresponding relationship between the third type of reference signal and the first type of frequency domain bandwidth index; the third type of reference signal belongs to a predetermined reference signal set.

[0549] The downlink signal includes at least one of:

[0550] A demodulation reference signal of a downlink control channel in a predetermined control channel resource in the second type of frequency domain bandwidth;

[0551] A demodulation reference signal of a data channel scheduled by a downlink control channel in a predetermined control channel resource in the second type of frequency domain bandwidth;

[0552] A demodulation reference signal of a data channel in the second frequency domain bandwidth scheduled by a downlink control channel in a predetermined control channel resource in the second frequency domain bandwidth;

[0553] The predetermined control channel resources include one of the following: control channel resources where the beam failure recovery search space of the second type of frequency domain bandwidth is located; downlink control channel resources in which the demodulation reference signal of the downlink control channel in the second type of frequency domain bandwidth and the first type of reference signal satisfy a quasi-co-location relationship; one or more downlink control channel resources predetermined in the second type of frequency domain bandwidth.

[0554] In the embodiment of the present invention, the fourth predetermined time and / or the fifth predetermined time includes one of the following:

[0555] After sending A time domain symbols after the third information;

[0556] After confirming that the third information is successfully sent B time domain symbols;

[0557] Determine C time domain symbols after a beam failure recovery process for the first type of frequency domain bandwidth is successfully completed;

[0558] After D time domain symbols after the control information is detected in the predetermined control channel resource;

[0559] Wherein, the A, B, C, and D satisfy at least one of the following characteristics: are positive integers greater than or equal to 1, are fixed values, and are obtained according to the reported capability information;

[0560] The fourth scheduled time and the fifth scheduled time are the same time or different times.

[0561] In an embodiment of the present invention, one or more of A, B, C, and D are obtained according to at least one of the following information:

[0562] The subcarrier spacing parameter corresponding to the second type of frequency domain bandwidth

[0563] The subcarrier spacing parameter corresponding to the first type of frequency domain bandwidth

[0564] The ratio of the subcarrier spacing parameter corresponding to the second type of frequency domain bandwidth to the subcarrier spacing parameter corresponding to the first type of frequency domain bandwidth

[0565] Among them, the subcarrier spacing parameter corresponding to the i-th frequency domain bandwidth is The subcarrier spacing in the activated bandwidth part BWP in the i-th frequency domain bandwidth is Wherein f0 is a fixed value;

[0566] Where i is 1 or 2.

[0567] In the embodiment of the present invention, the spatial transmission filter of the uplink signal in the second type of frequency domain bandwidth is acquired or updated according to the third information and / or the predetermined rule, including:

[0568] The spatial transmission filter of the uplink signal in the second type of frequency domain bandwidth is obtained according to the spatial reception filter of receiving the second type of reference signal;

[0569] Alternatively, the spatial transmission filter of the uplink signal in the second-type frequency domain bandwidth is obtained according to a fourth-type reference signal in the second-type frequency domain bandwidth that corresponds to the second-type reference signal.

[0570] In the embodiment of the present invention, the uplink signal includes an uplink control channel signal.

[0571] See also Fig.12 Another embodiment of the present invention provides a device for determining a quasi co-location reference signal, comprising:

[0572] A first determination module 1201 is used to determine a second type of frequency domain bandwidth corresponding to the first type of frequency domain bandwidth;

[0573] The sending module 1202 is configured to send third information when a beam failure event is detected according to a first-type reference signal with a first-type frequency domain bandwidth; wherein the third information includes at least one of the following information: reference signal index information of the second-type reference signal, frequency domain bandwidth index information of the first-type frequency domain bandwidth;

[0574] The second determination module 1203 is used to obtain or update the quasi-co-site reference signal of the downlink signal in the second-type frequency domain bandwidth according to the third information and / or predetermined rules starting from the fourth predetermined moment, and / or, starting from the fifth predetermined moment, the spatial transmit filter of the uplink signal in the second-type frequency domain bandwidth is obtained or updated according to the third information and / or predetermined rules.

[0575] In the embodiment of the present invention, the second type of frequency domain bandwidth corresponding to the first type of frequency domain bandwidth may be any frequency domain bandwidth, for example, a frequency domain bandwidth whose beam correlation with the first type of frequency domain bandwidth is greater than or equal to a preset threshold.

[0576] In the embodiment of the present invention, a beam failure detection reference signal is configured for the first type of frequency domain bandwidth, but a beam failure detection reference signal is not configured for the second type of frequency domain bandwidth.

[0577] In the embodiment of the present invention, the first determining module 1201 is specifically used for:

[0578] Determine the second type of frequency domain bandwidth corresponding to the first type of frequency domain bandwidth according to at least one of the following information:

[0579] received signaling information, wherein the received signaling information includes the second type of frequency domain bandwidth corresponding to the first type of frequency domain bandwidth;

[0580] The signaling information sent includes the second type of frequency domain bandwidth corresponding to the first type of frequency domain bandwidth;

[0581] The frequency domain bandwidth index where the first type of reference signal is located, wherein there is at least one first type of reference signal in the second type of frequency domain bandwidth;

[0582] The frequency domain bandwidth index where the second type of reference signal is located, wherein there is at least one second type of reference signal in the second type of frequency domain bandwidth;

[0583] The bandwidth where the first type of frequency domain bandwidth is located, wherein the second type of frequency domain bandwidth is located in the bandwidth where the first type of frequency domain bandwidth is located;

[0584] One second-type frequency domain bandwidth corresponds to one or more first-type frequency domain bandwidths;

[0585] One first-type frequency domain bandwidth corresponds to one or more second-type frequency domain bandwidths;

[0586] The first type of frequency domain bandwidth and the second type of frequency domain bandwidth are different or the same frequency domain bandwidths.

[0587] The frequency domain bandwidth includes at least one of the following: CC, BWP, and a physical resource block set.

[0588] In the embodiment of the present invention, it satisfies at least one of the following characteristics:

[0589] The first type of reference signal and the demodulation reference signal of the control channel in the first type of frequency domain bandwidth satisfy a quasi-co-location relationship;

[0590] The first type of reference signals includes reference signals in a beam failure detection reference signal set of the first type of frequency domain bandwidth;

[0591] The first type of reference signal is in the first type of frequency domain bandwidth;

[0592] The second type of reference signal is in the first type of frequency domain bandwidth;

[0593] After sending the third information, monitoring response information corresponding to the third information in a downlink control channel in the first type of frequency domain bandwidth and a downlink control channel in the second type of frequency domain bandwidth;

[0594] After sending the third information, a response message is monitored in at least one of the downlink control channels in the first type of frequency domain bandwidth and the downlink control channels in the second type of frequency domain bandwidth, and the sending of the third information is stopped, and the beam failure timer corresponding to the third information is stopped;

[0595] The beam failure timer includes at least one of the following: a beam failure recovery timer and a beam failure response information monitoring timer.

[0596] In this embodiment of the present invention, the second determination module 1303 is specifically configured to implement acquisition of the quasi co-site reference signal of the downlink signal in the second-type frequency domain bandwidth according to the third information and / or a predetermined rule in at least one of the following ways:

[0597] The quasi-co-site reference signal of the downlink signal in the second type of frequency domain bandwidth with respect to the first type of quasi-co-site parameter is updated to the second type of reference signal corresponding to the reference signal index information; or, the quasi-co-site reference signal of the downlink signal in the second type of frequency domain bandwidth with respect to the first type of quasi-co-site parameter is updated to the third type of reference signal;

[0598] The quasi-co-site reference signal of the second type of quasi-co-site parameter of the downlink signal in the second type of frequency domain bandwidth is updated to the third type of reference signal; or, the quasi-co-site reference signal of the second type of quasi-co-site parameter of the downlink signal in the second type of frequency domain bandwidth is updated to the second type of reference signal corresponding to the index information of the reference signal of the first type of index information;

[0599] Wherein, the first type of quasi co-location parameters includes at least one of the following quasi co-location parameters: spatial reception parameters, Doppler frequency shift, average delay;

[0600] The second type of quasi-co-location parameters includes at least one of the following quasi-co-location parameters: Doppler spread, delay spread;

[0601] Among them, the third type of reference signal satisfies at least one of the following characteristics: the third type of reference signal is located in the second type of frequency domain bandwidth; there is a corresponding relationship between the third type of reference signal and the second type of reference signal; there is a corresponding relationship between the third type of reference signal and the first type of frequency domain bandwidth index; the third type of reference signal belongs to a predetermined reference signal set.

[0602] The downlink signal includes at least one of:

[0603] A demodulation reference signal of a downlink control channel in a predetermined control channel resource in the second type of frequency domain bandwidth;

[0604] A demodulation reference signal of a data channel scheduled by a downlink control channel in a predetermined control channel resource in the second type of frequency domain bandwidth;

[0605] A demodulation reference signal of a data channel in the second frequency domain bandwidth scheduled by a downlink control channel in a predetermined control channel resource in the second frequency domain bandwidth;

[0606] The predetermined control channel resources include one of the following: control channel resources where the beam failure recovery search space of the second type of frequency domain bandwidth is located; downlink control channel resources in which the demodulation reference signal of the downlink control channel in the second type of frequency domain bandwidth and the first type of reference signal satisfy a quasi-co-location relationship; one or more downlink control channel resources predetermined in the second type of frequency domain bandwidth.

[0607] In the embodiment of the present invention, the fourth predetermined time and / or the fifth predetermined time includes one of the following:

[0608] After sending A time domain symbols after the third information;

[0609] After confirming that the third information is successfully sent B time domain symbols;

[0610] Determine C time domain symbols after a beam failure recovery process for the first type of frequency domain bandwidth is successfully completed;

[0611] After D time domain symbols after the control information is detected in the predetermined control channel resource;

[0612] Wherein, the A, B, C, and D satisfy at least one of the following characteristics: are positive integers greater than or equal to 1, are fixed values, and are obtained according to the reported capability information;

[0613] The fourth scheduled time and the fifth scheduled time are the same time or different times.

[0614] In an embodiment of the present invention, one or more of A, B, C, and D are obtained according to at least one of the following information:

[0615] The subcarrier spacing parameter corresponding to the second type of frequency domain bandwidth

[0616] The subcarrier spacing parameter corresponding to the first type of frequency domain bandwidth

[0617] The ratio of the subcarrier spacing parameter corresponding to the second type of frequency domain bandwidth to the subcarrier spacing parameter corresponding to the first type of frequency domain bandwidth

[0618] Among them, the subcarrier spacing parameter corresponding to the i-th frequency domain bandwidth is The subcarrier spacing in the activated bandwidth part BWP in the i-th frequency domain bandwidth is Wherein f0 is a fixed value;

[0619] Where i is 1 or 2.

[0620] In the embodiment of the present invention, the second determination module 1303 is specifically configured to implement acquisition or update of the spatial transmission filter of the uplink signal in the second type of frequency domain bandwidth according to the third information and / or the predetermined rule in one of the following ways:

[0621] The spatial transmission filter of the uplink signal in the second type of frequency domain bandwidth is obtained according to the spatial reception filter of receiving the second type of reference signal;

[0622] The spatial transmission filter of the uplink signal in the second-type frequency domain bandwidth is obtained according to a fourth-type reference signal in the second-type frequency domain bandwidth that corresponds to the second-type reference signal.

[0623] In the embodiment of the present invention, the uplink signal includes an uplink control channel signal.

[0624] The specific implementation process of the above-mentioned quasi co-location reference signal determination device is the same as the specific implementation process of the quasi co-location reference signal determination method in the aforementioned embodiment, which will not be repeated here.

[0625] Another embodiment of the present invention provides a device for determining a quasi-co-site reference signal, including a processor and a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, and when the instructions are executed by the processor, any of the above-mentioned methods for determining a quasi-co-site reference signal is implemented.

[0626] Another embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of any of the above-mentioned methods for determining a quasi-co-site reference signal.

[0627] Example 10

[0628] In this embodiment, the following steps are performed:

[0629] Step 1: determining one or more second-type frequency domain bandwidths that have a corresponding relationship with the first-type frequency domain bandwidth;

[0630] Step 2: When a beam failure event is detected according to a beam failure detection reference signal (i.e., a first type of reference signal) of a first type of frequency domain bandwidth, third information corresponding to the first type of frequency domain bandwidth (also referred to as beam failure request information) is sent, where the third information includes at least one of the following information: a CC index where the first type of frequency domain bandwidth is located (i.e., the frequency domain bandwidth index information), a BWP index where the first type of frequency domain bandwidth is located (i.e., the frequency domain bandwidth index information), and a new reference signal indication information selected from a candidate reference signal set corresponding to the first type of frequency domain bandwidth (i.e., the reference signal index information);

[0631] Step three: starting from the fourth predetermined moment, the quasi-co-site reference signal of the downlink signal in the second type of frequency domain bandwidth is acquired according to the third information and / or the predetermined rule, and / or, starting from the fifth predetermined moment, the spatial transmit filter of the uplink signal in the second type of frequency domain bandwidth is acquired or updated according to the third information and / or the predetermined rule.

[0632] Specifically, a service cell group includes {CC1, CC2}, a beam failure detection reference signal set (i.e., the first type of reference signal) is configured in CC1, or beam failure recovery related parameters are configured in CC1, and the beam failure detection reference signal in CC1 is obtained based on the quasi-co-site reference signal of the control channel resource in CC1. No beam failure detection reference signal set is configured in CC2, and the terminal does not use the quasi-co-site reference signal of the control channel resource in CC2 as the beam failure detection reference signal of CC2. In short, the reference signal in the beam failure detection reference signal set satisfies the quasi-co-site relationship with the demodulation reference signal of the CORESET in CC1, but does not necessarily satisfy the quasi-co-site relationship with the demodulation reference signal of the CORESET in CC2.

[0633] The terminal detects the first type of reference signal to obtain whether a beam failure event occurs. When it is determined that a beam failure event occurs, the terminal sends the third information corresponding to the beam failure detection reference signal to the base station, telling the base station CC1 that a beam failure event has occurred. Alternatively, after a beam failure event occurs in CC1, the terminal selects a new reference signal from the candidate reference signal set corresponding to CC1 and sends the information of the new reference signal to the base station.

[0634] Because the beam correlation between CC1 and CC2 is relatively high, a beam failure event occurs in CC1, and it is likely that the control channel beam in CC2 also fails. In order to quickly restore the communication of CC2, one way is to implement it through the base station. For example, after the base station and the terminal restore the communication on CC1, the TCI information (i.e., quasi-co-location reference signal information) of the control channel of CC2 is notified through the MAC-CE command or RRC signaling in CC1. However, this method has a large MAC-CE signaling overhead, and the communication link recovery of CC2 is relatively slow. When CC1 cannot be restored, CC2 cannot be restored. Therefore, starting from the fourth predetermined time, at least one of the following schemes is adopted:

[0635] Solution 1: The QCL reference signal of the CORESET that satisfies the QCL relationship between the beam failure detection reference signal in CC2 and CC1 is updated or activated;

[0636] Solution 2: The QCL reference signal of the predetermined CORESET in CC2 is updated or activated, such as the QCL reference signal of the CORESET where the beam failure search space configured in CC2 is located is updated or activated; or the QCL reference signal of the beam failure recovery CORESET configured in CC2 is updated or activated.

[0637] Starting from the fourth predetermined moment, the QCL reference signal of the CORESET in CC2 is updated or activated, including:

[0638] Update method 1: The quasi-co-location reference signal of the first type of quasi-co-location parameters associated with the CORESET in CC2 is obtained according to the reference signal indication information included in the third information corresponding to CC1, and the quasi-co-location reference signal of the second type of quasi-co-location parameters associated with the CORESET in CC2 is obtained according to the third type of reference signal in CC2.

[0639] Update method 2: The quasi-co-location reference signal associated with the first type of quasi-co-location parameters of CORESET in CC2 is obtained according to the reference signal indication information included in the third information corresponding to CC1, and the quasi-co-location reference signal associated with the second type of quasi-co-location parameters of CORESET in CC2 remains unchanged.

[0640] Update method three: the quasi-co-location reference signals of the first type of quasi-co-location parameters and the second type of quasi-co-location parameters associated with CORESET in CC2 are acquired according to the reference signal indication information included in the third information corresponding to CC1;

[0641] Update method 4: The quasi-co-location reference signals of the associated first-type quasi-co-location parameters and the second-type quasi-co-location parameters of CORESET in CC2 are obtained based on the third-type reference signals in CC2.

[0642] There is a corresponding relationship between the third type of reference signal and the reference signal indication information included in the third information corresponding to CC1, or the third type of reference signal belongs to a candidate reference signal set in CC2, or the third type of reference signal is a reference signal of a predetermined configuration.

[0643] Wherein, the first type of quasi co-location parameters includes at least one of the following parameters: spatial reception parameters, Doppler frequency shift, average delay;

[0644] The second type of quasi-co-location parameters includes at least one of the following parameters: Doppler spread, delay spread.

[0645] The fourth predetermined moment includes one of the following moments: after A time domain symbols after sending the third information; after B time domain symbols after receiving the response information sent by the base station, wherein the response information corresponds to the response information of the third information sent by the terminal; after C time domain symbols after confirming that the beam failure recovery process of CC1 is successful; after D time domain symbols after the control information is detected in the reserved control channel resources; wherein A, B, C, D satisfy at least one of the following characteristics: are positive integers greater than or equal to 1, are fixed values, and are obtained according to the reported capability information.

[0646] The fifth scheduled time may also include one of the above-mentioned times, and the fourth scheduled time and the fifth scheduled time are the same time or different times.

[0647] Further, at least one value of A, B, C, and D is obtained according to one of the following information: a subcarrier spacing parameter corresponding to a BWP of CC2 The subcarrier spacing parameter corresponding to a BWP of CC1 The ratio of the subcarrier spacing parameter corresponding to one BWP of CC2 to the subcarrier spacing parameter corresponding to one BWP of CC1

[0648] Further, one or more second-type frequency domain bandwidths corresponding to a first-type frequency domain bandwidth are determined based on at least one of the following information: signaling information sent by the base station, information reported by the terminal, the CC index where the first-type reference signal is located, the CC index where the second-type reference signal is located, and the bandwidth (Band) where the first-type frequency domain bandwidth is located.

[0649] Specifically, for example, the CCs in a service cell group are a CC group, and a beam failure event occurs in a CC in a CC group, and the QCL reference signal of the demodulation reference signal of the CORESET in this CC is automatically updated or activated. The CCs in a CC group are located in a Band, that is, an Intra-Band CC. For example, there are two reference signals in the first type of reference signal set, one reference signal is located in CC1, and the other reference signal is located in CC2. When a beam failure event is detected based on the first type of reference signal set, the QCL reference signal of the demodulation reference signal of the CORESET in CC1 and CC2 is automatically updated or activated. For example, when a beam failure event is detected based on the first type of reference signal set, a reference signal is selected from the second type of reference signal set. There are two reference signals in the second type of reference signal set, one reference signal is located in CC3, and the other reference signal is located in CC4. When a beam failure event is detected based on the first type of reference signal set, the QCL reference signal of the demodulation reference signal of the CORESET in CC3 and CC4 is automatically updated or activated.

[0650] Furthermore, the above is to automatically update or activate the QCL reference signal of the demodulation reference signal of the CORESET of CC2, and the QCL reference signal of the demodulation reference signal of the PDSCH scheduled by the CORESET in CC2 is automatically acquired according to the third information and / or the third reference signal.

[0651] Furthermore, a second-type frequency domain bandwidth may have a corresponding relationship with more than one first-type frequency domain bandwidth. As long as a beam failure detection reference signal corresponding to a first-type frequency domain bandwidth detects a beam failure event, the QCL reference signal of the demodulation reference signal of the PDSCH scheduled in the CORESET of the second-type frequency domain bandwidth is automatically acquired based on the third information and / or the third reference signal; or it is stipulated that a second-type frequency domain bandwidth can only have a corresponding relationship with one first-type frequency domain bandwidth.

[0652] Furthermore, when there is a problem with the downlink beam of CC1, there may also be problems with the uplink beams of CC1 and CC2. Therefore, starting from the fifth predetermined moment, the transmit spatial filter of the uplink signal in CC2 is determined according to the transmit spatial filter used by the terminal to send the third information, wherein the uplink signal includes a predetermined uplink signal, such as a dedicated PUCCH, a scheduling-free PUSCH, an uplink measurement reference signal (SRS, Sounding Reference Signal), and a scheduling resource request (SR, Scheduling Request).

[0653] Furthermore, in step three, from the fourth predetermined moment to the occurrence of the first predetermined event, the quasi-co-site reference signal of the downlink signal in the second type of frequency domain bandwidth is acquired according to the third information and / or predetermined rules, and / or from the fifth predetermined moment to the occurrence of the second predetermined event, the spatial transmit filter of the uplink signal in the second type of frequency domain bandwidth is acquired or updated according to the third information and / or predetermined rules.

[0654] The first predetermined event includes one of the following: receiving an update or activation signaling of a quasi-co-site reference signal of a downlink control channel; receiving an update or activation signaling of a quasi-co-site reference signal of a downlink control channel of CC1; receiving an update or activation signaling of a quasi-co-site reference signal of a downlink control channel after receiving beam failure response information of CC1; receiving an update or activation signaling of a quasi-co-site reference signal of a downlink control channel of CC1 after receiving beam failure response information of CC1;

[0655] The second predetermined event includes one of the following: after receiving the beam failure response information of CC1, receiving the update or activation signaling of the spatial relationship indication information of the uplink control channel; after receiving the beam failure response of CC1, receiving the update or activation signaling of the spatial relationship indication information of the uplink control channel of CC1.

[0656] Furthermore, after sending the third information of CC1, response information corresponding to the third information is listened to in the beam failure recovery search space of CC1 and in the beam failure recovery search space of CC2; as long as the response information is listened to in the beam failure recovery search space of one of the two CCs, the third information is considered to be sent successfully, and the beam failure recovery timer corresponding to the third information is stopped, and / or the beam failure response information timer corresponding to the third information is stopped.

[0657] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all components may be implemented as software executed by a processor, such as a digital signal processor or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0658] Although the implementation methods disclosed in the embodiments of the present invention are as above, the contents described are only implementation methods adopted to facilitate understanding of the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. Any technician in the field to which the embodiments of the present invention belong may make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in the embodiments of the present invention, but the scope of patent protection of the embodiments of the present invention shall still be subject to the scope defined in the attached claims.

Claims

1. A method for determining a quasi co-site reference signal, characterized in that: include: Determine a second type of frequency domain bandwidth corresponding to the first type of frequency domain bandwidth; When a beam failure event is detected according to a first type of reference signal of a first type of frequency domain bandwidth, sending information; The information includes: reference signal index information of the first type of reference signal, frequency domain bandwidth index information of the first type of frequency domain bandwidth; Starting from a predetermined time, a quasi co-site reference signal of a downlink signal in the second-type frequency domain bandwidth is acquired according to the information.

2. The method according to claim 1, characterized in that The acquiring, according to the information, a quasi co-site reference signal of a downlink signal in the second-type frequency domain bandwidth includes: Updating the quasi-co-site reference signal of the downlink signal in the second-type frequency domain bandwidth with respect to the first-type quasi-co-site parameter to the first-type reference signal; and, Updating a quasi-co-site reference signal of a second type of quasi-co-site parameter of a downlink signal in a second type of frequency domain bandwidth to the first type of reference signal; Wherein, the first type of quasi co-location parameters includes at least one of the following quasi co-location parameters: spatial reception parameters, Doppler frequency shift, average delay; The second type of quasi co-location parameters includes at least one of the following quasi co-location parameters: Doppler spread, delay spread.

3. The method according to claim 1, characterized in that The acquiring, according to the information, a quasi co-site reference signal of a downlink signal in the second-type frequency domain bandwidth includes: Updating the quasi-co-site reference signal of the downlink signal in the second-type frequency domain bandwidth with respect to the first-type quasi-co-site parameter to the first-type reference signal; and, Updating a quasi-co-site reference signal about a second type of quasi-co-site parameter of a downlink signal in a second type of frequency domain bandwidth to a second type of reference signal; Wherein, the first type of quasi co-location parameters includes at least one of the following quasi co-location parameters: spatial reception parameters, Doppler frequency shift, average delay; The second type of quasi-co-location parameters includes at least one of the following quasi-co-location parameters: Doppler spread, delay spread; Among them, the second type of reference signal satisfies at least one of the following characteristics: the second type of reference signal is located in the second type of frequency domain bandwidth; there is a corresponding relationship between the second type of reference signal and the first type of reference signal; there is a corresponding relationship between the second type of reference signal and the first type of frequency domain bandwidth index.

4. The method according to claim 1, characterized in that: in, The downlink signal includes at least one of: A demodulation reference signal of a downlink control channel in a predetermined control channel resource in the second type of frequency domain bandwidth; A demodulation reference signal of a data channel scheduled by a downlink control channel in a predetermined control channel resource in the second type of frequency domain bandwidth; The predetermined control channel resources include one of the following: a downlink control channel resource located in the second frequency domain bandwidth and the demodulation reference signal and the first reference signal satisfy a quasi-co-location relationship; one or more downlink control channel resources predetermined in the second frequency domain bandwidth.

5. The method according to claim 1, characterized in that: The predetermined time includes one of the following: The first time domain symbol after B time domain symbols after confirming that the information is successfully sent; A first time domain symbol after D time domain symbols after the control information is detected in the predetermined control channel resource; Among them, B and D meet the following characteristics: they are positive integers greater than or equal to 1 and are fixed values.

6. The method according to claim 5, characterized in that One or more of B and D are obtained based on at least one of the following information: The subcarrier spacing parameter corresponding to the first type of frequency domain bandwidth The subcarrier spacing parameter corresponding to the second type of frequency domain bandwidth The ratio of the subcarrier spacing parameter corresponding to the second type of frequency domain bandwidth to the subcarrier spacing parameter corresponding to the first type of frequency domain bandwidth Among them, the subcarrier spacing parameter corresponding to the i-th frequency domain bandwidth is It indicates that the subcarrier spacing in the activated bandwidth part BWP in the i-th frequency domain bandwidth is Wherein f0 is a fixed value; The i-th frequency bandwidth includes the first-type frequency domain bandwidth and the second-type frequency domain bandwidth.

7. The method according to claim 1, characterized in that Also includes: Starting from the predetermined time, a spatial transmit filter for uplink signals in the second-type frequency domain bandwidth is determined according to a spatial receive filter for receiving the first-type reference signal.

8. The method according to claim 1, characterized in that It meets at least one of the following characteristics: The first type of reference signal and the demodulation reference signal of the control channel in the first type of frequency domain bandwidth satisfy a quasi-co-location relationship; The first type of reference signals includes reference signals in a beam failure detection reference signal set of the first type of frequency domain bandwidth; The first type of reference signal is in the first type of frequency domain bandwidth.

9. The method according to claim 1, characterized in that: Also includes: Receive signaling information, wherein the received signaling information includes the second type of frequency domain bandwidth corresponding to the first type of frequency domain bandwidth, wherein one first type of frequency domain bandwidth corresponds to one or more second type of frequency domain bandwidths, the first type of frequency domain bandwidth and the second type of frequency domain bandwidth are different or the same frequency domain bandwidths, and the frequency domain bandwidth includes: carrier component CC.

10. A method for determining a quasi co-site reference signal, characterized in that: include: receiving information, wherein the information includes: reference signal index information of a first type of reference signal and frequency domain bandwidth index information of a first type of frequency domain bandwidth; Starting from a predetermined time, a quasi-co-site reference signal of a downlink signal in a second type of frequency domain bandwidth corresponding to the first type of frequency domain bandwidth is acquired according to the information.

11. The method according to claim 10, characterized in that The acquiring, according to the information, a quasi-co-site reference signal of a downlink signal in a second type of frequency domain bandwidth corresponding to the first type of frequency domain bandwidth includes: Updating the quasi-co-site reference signal of the downlink signal in the second-type frequency domain bandwidth with respect to the first-type quasi-co-site parameter to the first-type reference signal; and, Updating a quasi-co-site reference signal of a second type of quasi-co-site parameter of a downlink signal in a second type of frequency domain bandwidth to the first type of reference signal; Wherein, the first type of quasi co-location parameters includes at least one of the following quasi co-location parameters: spatial reception parameters, Doppler frequency shift, average delay; The second type of quasi co-location parameters includes at least one of the following quasi co-location parameters: Doppler spread, delay spread.

12. The method according to claim 10, characterized in that The acquiring, according to the information, a quasi-co-site reference signal of a downlink signal in a second type of frequency domain bandwidth corresponding to the first type of frequency domain bandwidth includes: Updating the quasi-co-site reference signal of the downlink signal in the second-type frequency domain bandwidth with respect to the first-type quasi-co-site parameter to the first-type reference signal; and, Updating a quasi-co-site reference signal about a second type of quasi-co-site parameter of a downlink signal in a second type of frequency domain bandwidth to a second type of reference signal; Wherein, the first type of quasi co-location parameters includes at least one of the following quasi co-location parameters: spatial reception parameters, Doppler frequency shift, average delay; The second type of quasi-co-location parameters includes at least one of the following quasi-co-location parameters: Doppler spread, delay spread; Among them, the second type of reference signal satisfies at least one of the following characteristics: the second type of reference signal is located in the second type of frequency domain bandwidth; there is a corresponding relationship between the second type of reference signal and the first type of reference signal; there is a corresponding relationship between the second type of reference signal and the first type of frequency domain bandwidth index.

13. The method according to claim 10, characterized in that: in, The downlink signal includes at least one of: A demodulation reference signal of a downlink control channel in a predetermined control channel resource in the second type of frequency domain bandwidth; A demodulation reference signal of a data channel scheduled by a downlink control channel in a predetermined control channel resource in the second type of frequency domain bandwidth; The predetermined control channel resources include one of the following: a downlink control channel resource located in the second frequency domain bandwidth and the demodulation reference signal and the first reference signal satisfy a quasi-co-location relationship; one or more downlink control channel resources predetermined in the second frequency domain bandwidth.

14. The method according to claim 10, characterized in that The predetermined time includes one of the following: Sending the first time domain symbol after B time domain symbols after the response information based on the information; A first time domain symbol after D time domain symbols after the control information is detected in the predetermined control channel resource; Among them, B and D meet the following characteristics: they are positive integers greater than or equal to 1 and are fixed values.

15. The method according to claim 14, characterized in that One or more of B and D are obtained based on at least one of the following information: The subcarrier spacing parameter corresponding to the first type of frequency domain bandwidth The subcarrier spacing parameter corresponding to the second type of frequency domain bandwidth The ratio of the subcarrier spacing parameter corresponding to the second type of frequency domain bandwidth to the subcarrier spacing parameter corresponding to the first type of frequency domain bandwidth Among them, the subcarrier spacing parameter corresponding to the i-th frequency domain bandwidth is It indicates that the subcarrier spacing in the activated bandwidth part BWP in the i-th frequency domain bandwidth is Wherein f0 is a fixed value; The i-th frequency bandwidth includes the first-type frequency domain bandwidth and the second-type frequency domain bandwidth.

16. The method according to claim 10, characterized in that It meets at least one of the following characteristics: The first type of reference signal and the demodulation reference signal of the control channel in the first type of frequency domain bandwidth satisfy a quasi-co-location relationship; The first type of reference signals includes reference signals in a beam failure detection reference signal set of the first type of frequency domain bandwidth; The first type of reference signal is in the first type of frequency domain bandwidth.

17. The method according to claim 10, characterized in that Also includes: Sending signaling information, where the signaling information includes the second type of frequency domain bandwidth corresponding to the first type of frequency domain bandwidth; The frequency domain bandwidth includes: a carrier component CC, a first type of frequency domain bandwidth corresponds to one or more second type of frequency domain bandwidths, and the first type of frequency domain bandwidth and the second type of frequency domain bandwidth are different or the same frequency domain bandwidths.

18. A communication node, comprising a processor and a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, characterized in that: When the instruction is executed by the processor, the method for determining a quasi co-site reference signal as described in any one of claims 1 to 17 is implemented.

19. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method for determining a quasi co-site reference signal according to any one of claims 1 to 17 is implemented.

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