A technique for determining a beam fault detection reference signal set and resetting the beam after beam fault recovery.

Abstract

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) can determine a beam failure detection reference signal (BFD-RS) set based at least in part on an active transmission configuration indication (TCI) status for downlink channel reception in control resource sets (CORESETs), the CORESET being configured with a CORESET pool index value that exceeds a threshold. The UE can receive a BFD-RS from a base station based at least in part on the BFD-RS set. Numerous other aspects are described.

Description

Technical Field

[0001] Aspects of the present disclosure generally relate to wireless communication, and relate to techniques and apparatuses for determining a set of beam failure detection reference signals (BFD-RS) to reset a beam after beam failure recovery (BFR).

Background Art

[0002] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcast. A typical wireless communication system can employ a multiple access technology that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the universal mobile telecommunications system (UMTS) mobile standards published by the 3rd Generation Partnership Project (3GPP (registered trademark)).

[0003] A wireless network may include one or more base stations that support communication regarding a user equipment (UE) or multiple UEs. The UE can communicate with the base station via downlink communication and uplink communication. "Downlink" (or "DL") refers to the communication link from the base station to the UE, and "uplink" (or "UL") refers to the communication link from the UE to the base station.

[0004] The multiple access technologies described above have been adopted in various telecommunications standards to provide a common protocol that enables various UEs to communicate at the city, national, regional, and / or global levels. New Radio (NR), sometimes referred to as 5G, is a set of extensions to the LTE mobile standard published by 3GPP®. NR is designed to better support mobile broadband internet access by improving spectral efficiency, lowering costs, improving service, utilizing new spectra, and using orthogonal frequency division multiplexing (OFDM) with cyclic prefixes (CP) (CP-OFDM) on the downlink and CP-OFDM and / or single-carrier frequency division multiplexing (SC-FDM) (also known as, for example, discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink, as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. As demand for mobile broadband access continues to grow, further improvements in LTE, NR, and other wireless access technologies remain valuable. [Overview of the project]

[0005] In some implementations, a method of wireless communication performed by a user device (UE) includes determining a set of beam fault detection reference signals (BFD-RS) based at least in part on active transmit configuration instruction (TCI) states relating to downlink channel reception in control resource sets (CORESETs), wherein the CORESETs consist of CORESET pool index values ​​exceeding a threshold, and receiving BFD-RS from a base station based at least in part on the BFD-RS set.

[0006] In some implementations, the method of wireless communication performed by the UE includes: transmitting beam fault recovery (BFR) reports to base stations associated with multiple transmit / receive points (TRPs), at least in part based on the detection of beam fault events relating to the TRPs; receiving responses from the base stations, at least in part based on the BFR reports; and resetting the set of channels relating to the TRPs associated with the beam fault events, at least in part based on the reception of those responses.

[0007] In some implementations, the device for wireless communications in the UE includes memory and one or more processors coupled to the memory, which determine a BFD-RS set at least partially based on an active TCI state relating to downlink channel reception in CORESET, and which is configured to receive BFD-RS from a base station at least partially based on the BFD-RS set, with CORESET consisting of CORESET pool index values ​​exceeding a threshold.

[0008] In some implementations, the device for wireless communications in the UE includes memory and one or more processors coupled to the memory, configured to transmit BFR reports to base stations associated with a plurality of TRPs, at least in part on the detection of beam obstruction events relating to the TRPs, receive responses from the base stations, at least in part on the BFR reports, and reset the set of channels relating to the TRPs associated with the beam obstruction events, at least in part on the reception of the responses.

[0009] In some implementations, a non-temporary computer-readable medium storing a set of instructions relating to wireless communication, when executed by one or more processors of the UE, causes the UE to determine a BFD-RS set, at least partially based on the active TCI state relating to downlink channel reception in the CORESET, and includes one or more instructions that cause the CORESET to consist of CORESET pool index values ​​exceeding a threshold, and to receive a BFD-RS from a base station, at least partially based on the BFD-RS set.

[0010] In some implementations, a non-temporary computer-readable medium storing a set of instructions relating to wireless communication includes, when executed by one or more processors of the UE, one or more instructions causing the UE to cause base stations associated with multiple TRPs to send BFR reports, at least in part, based on the detection of beam obstruction events relating to the TRPs; to receive responses from the base stations, at least in part, based on the BFR reports; and to reset the set of channels relating to the TRPs associated with the beam obstruction events, at least in part, based on the reception of those responses.

[0011] In some implementations, the device for wireless communication includes means for determining a BFD-RS set, at least in part, based on an active TCI state relating to downlink channel reception in CORESET, wherein CORESET consists of CORESET pool index values ​​exceeding a threshold, and means for receiving BFD-RS from a base station, at least in part, based on the BFD-RS set.

[0012] In some implementations, the device for wireless communication includes means for transmitting BFR reports to base stations associated with multiple TRPs, at least in part on the detection of beam obstruction events relating to the TRPs; means for receiving responses from base stations, at least in part on the BFR reports; and means for resetting a set of channels relating to the TRPs associated with the beam obstruction events, at least in part on the reception of the responses.

[0013] The embodiments generally include methods, apparatus, systems, computer program products, non-temporary computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems, as substantially described herein with reference to the drawings and this specification.

[0014] The above provides a fairly broad overview of the features and technical advantages of the embodiments of this disclosure, so as to allow for a better understanding of the following "Modes for Carrying Out the Invention." Additional features and advantages are described thereafter. The concepts and specific embodiments disclosed can be readily used as a basis for modifying or designing other structures to accomplish the same objectives of this disclosure. Such equivalent structures will not deviate from the scope of the appended claims. The characteristics of the concepts disclosed herein, both their configuration and method of operation, will be better understood, along with the relevant advantages, by considering the following description in relation to the accompanying figures. Each figure is provided for illustrative and explanatory purposes and is not provided to define any limitation of the claims.

[0015] A more detailed explanation of the features of this disclosure listed above can be obtained by referring to the embodiments partially shown in the accompanying drawings, which allow for a more detailed understanding of the features of this disclosure listed above. However, it should be noted that the accompanying drawings only illustrate specific typical embodiments of this disclosure and should therefore not be considered to limit the scope of this disclosure, as other similarly effective embodiments may be recognized in this description. The same reference numerals in different drawings may identify the same or similar elements. [Brief explanation of the drawing]

[0016] [Figure 1] This figure shows one embodiment of a wireless network according to the present disclosure. [Figure 2] This figure shows one embodiment of a base station communicating with user equipment (UE) within a wireless network, as disclosed herein. [Figure 3] This figure shows one embodiment associated with the determination of a beam fault detection reference signal (BFD-RS) set according to the present disclosure. [Figure 4] This figure shows one embodiment relating to beam reset after beam fault recovery, as disclosed herein. [Figure 5] This figure shows an exemplary process associated with determining the BFD-RS set as disclosed herein. [Figure 6] This figure shows an exemplary process associated with beam resetting after beam fault recovery, as disclosed herein. [Figure 7] This is a diagram of an exemplary device for wireless communication according to the present disclosure. [Modes for carrying out the invention]

[0017] Hereafter, various aspects of the Disclosure will be described more fully with reference to the accompanying drawings. However, the Disclosure can be embodied in many different forms and should not be construed as being limited to any particular structure or function presented throughout the Disclosure. Rather, these aspects are provided to make the Disclosure sufficient and complete and to fully convey the scope of the Disclosure to those skilled in the art. Those skilled in the art should understand that the scope of the Disclosure is intended to encompass all aspects of the Disclosure disclosed herein, whether implemented independently of or in combination with any other aspects of the Disclosure. For example, an apparatus can be implemented or a method can be practiced using any number of aspects described herein. Furthermore, the scope of the Disclosure is intended to encompass such apparatus or method practiced using other structures, functions, or structures and functions in addition to, or other than, the various aspects of the Disclosure described herein. It should be understood that any aspect of the Disclosure disclosed herein can be embodied by one or more elements of the claims.

[0018] Next, several embodiments of telecommunications systems are presented with reference to various devices and technologies. These devices and technologies are described in the following “Modes for Carrying Out the Invention” and are shown in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as “Elements”). These Elements can be implemented using hardware, software, or a combination thereof. Whether such Elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0019] While various aspects may be described herein using terms generally associated with 5G or New Radio (NR) Radio Access Technology (RAT), the aspects of this disclosure may also apply to other RATs, such as 3G RAT, 4G RAT, and / or RATs following 5G (e.g., 6G).

[0020] Figure 1 shows one embodiment of a wireless network 100 according to the present disclosure. The wireless network 100 may be, or may include, elements of a 5G (e.g., NR) network and / or a 4G (e.g., Long-Term Evolution (LTE)) network, among many other examples. The wireless network 100 may include one or more base stations 110 (indicated as BS110a, BS110b, BS110c, and BS110d), user equipment (UE) 120 or multiple UE120 (indicated as UE120a, UE120b, UE120c, UE120d, and UE120e), and / or other network entities. The base station 110 is an entity that communicates with the UE120. A base station 110 (sometimes referred to as a BS) may include, for example, an NR base station, an LTE base station, a node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, and / or a transmit / receive point (TRP). Each base station 110 can provide communication coverage for a specific geographic area. In the Third Generation Partnership Project (3GPP®), the term “cell” may, depending on the context in which the term is used, refer to the coverage area of ​​a base station 110 and / or the base station subsystems providing service to that coverage area.

[0021] The base station 110 can provide communication coverage for macro cells, pico cells, femto cells, and / or another type of cell. A macro cell can cover a relatively large geographical area (e.g., several kilometers in radius) and can enable unrestricted access by the serving UE 120. A pico cell can cover a relatively small geographical area and can enable unrestricted access by the serving UE 120. A femto cell can cover a relatively small geographical area (e.g., a home) and can enable restricted access by the UE 120 having relevance to that femto cell (e.g., a UE 120 within a Closed Subscriber Group (CSG)). The base station 110 related to a macro cell may be referred to as a macro base station. The base station 110 related to a pico cell may be referred to as a pico base station. The base station 110 related to a femto cell may be referred to as a femto base station or a home base station. In the embodiment shown in FIG. 1, BS110a can be a macro base station related to the macro cell 102a, BS110b can be a pico base station related to the pico cell 102b, and BS110c can be a femto base station related to the femto cell 102c. A base station can support one or more (e.g., three) cells.

[0022] In some embodiments, the cell may not necessarily be fixed, and the geographical area of the cell can move according to the location of the mobile base station 110 (e.g., a mobile base station). In some embodiments, the base station 110 can interconnect with each other within the wireless network 100, and / or with one or more other base stations 110 or network nodes (not shown), through various types of backhaul interfaces such as a direct physical connection or a virtual network, using any suitable transport network.

[0023] Wireless network 100 may include one or more relay stations. A relay station is an entity that can receive the transmission of data from an upstream station (e.g., base station 110 or UE 120) and transmit the transmission of that data to a downstream station (e.g., UE 120 or base station 110). The relay station can also be a UE 120 that can relay transmissions to other UEs 120. In the embodiment shown in FIG. 1, BS110d (e.g., relay base station) can communicate with BS110a and UE120d to facilitate communication between BS110a (e.g., macro base station) and UE120d. A base station 110 that relays communication may sometimes be referred to as a relay station, relay base station, repeater, etc.

[0024] Wireless network 100 can be a heterogeneous network that includes different types of base stations 110, such as macro base stations, pico base stations, femto base stations, relay base stations, etc. These different types of base stations 110 may have different transmission power levels, different coverage areas, and / or different impacts on interference within wireless network 100. For example, a macro base station may have a high transmission power level (e.g., 5 - 40 watts), while pico base stations, femto base stations, and relay base stations may have a lower transmission power level (e.g., 0.1 - 2 watts).

[0025] Network controller 130 may be coupled to or communicate with a set of base stations 110 and can provide adjustments and control regarding these base stations 110. Network controller 130 can communicate with base stations 110 via a backhaul communication link. Base stations 110 can communicate with each other directly or indirectly via wireless or wired backhaul communication links.

[0026] UE120 can be distributed across the entire wireless network 100, and each UE120 can be fixed or mobile. UE120 may include, for example, access terminals, terminals, mobile stations, and / or subscriber units. UE120 can be mobile phones (e.g., smartphones), personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, laptop computers, cordless phones, wireless local loop (WLL) stations, tablets, cameras, game devices, netbooks, smartbooks, ultrabooks, medical devices, biometric devices, wearable devices (e.g., smartwatches, smart clothing, smart glasses, smart wristbands, smart jewelry (e.g., smart rings or smart bracelets)), entertainment devices (e.g., music devices, video devices, and / or satellite radios), vehicle components or sensors, smart meters / sensors, industrial manufacturing equipment, global positioning system devices, and / or any other suitable devices configured to communicate via wireless or wired media.

[0027] Some UE120s can be considered machine-type communication (MTC) UEs, or advanced or enhanced machine-type communication (eMTC) UEs. Examples of MTC UEs and / or eMTC UEs include robots, drones, remote devices, sensors, meters, monitors, and / or location tags capable of communicating with base stations, other devices (e.g., remote devices), or any other entities. Some UE120s can be considered Internet of Things (IoT) devices and / or implemented as NB-IoT (Narrowband IoT) devices. Some UE120s can be considered customer premises equipment. A UE120 can be contained within a housing that accommodates its components, such as processor components and / or memory components. In some embodiments, processor components and memory components can be coupled together. For example, processor components (e.g., one or more processors) and memory components (e.g., memory) can be operably coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0028] In general, any number of wireless networks 100 can be deployed within a given geographical area. Each wireless network 100 can support a specific RAT and operate on one or more frequencies. RAT may be referred to as wireless technology, air interface, etc. Frequency may be referred to as carrier, frequency channel, etc. To avoid interference between wireless networks of different RATs, each frequency may support a single RAT within a given geographical area. In some cases, NR networks or 5G RAT networks can be deployed.

[0029] In some embodiments, two or more UE120s (for example, indicated as UE120a and UE120e) can communicate directly using one or more sidelink channels (for example, without using base station 110 as an intermediary for communication with each other). For example, UE120s can communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, or vehicle-to-pedestrian (V2P) protocols), and / or mesh networks. In such embodiments, UE120s can perform scheduling operations, resource selection operations, and / or other operations described elsewhere in this specification as being performed by base station 110.

[0030] Devices in wireless network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various classes, bands, channels, etc., depending on the frequency or wavelength. For example, devices in wireless network 100 can communicate using one or more operating bands. In 5G NR, two initial operating bands are identified as frequency range designations FR1 (410 MHz to 7.125 GHz) and FR2 (24.25 GHz to 52.6 GHz). It should be understood that although a portion of FR1 is higher than 6 GHz, FR1 is often referred to as the "sub-6 GHz" band (for compatibility) in various documents and papers. A similar nomenclature issue may arise with FR2, which is often referred to as the "millimeter wave" band (for compatibility) in documents and papers, even though FR2 is different from the extremely high frequency (EHF) band (30 GHz to 300 GHz) which is identified as the "millimeter wave" band by the International Telecommunication Union (ITU).

[0031] The frequencies between FR1 and FR2 are often referred to as intermediate band frequencies. In recent 5G NR research, the operating bands related to these intermediate band frequencies are identified as frequency range designation FR3 (7.125 GHz to 24.25 GHz). The frequency bands within the FR3 range can inherit the characteristics of FR1 and / or FR2, and therefore, the features of FR1 and / or FR2 can be effectively extended to the intermediate band frequencies. Furthermore, higher frequency bands are currently being considered to extend 5G NR operation beyond 52.6 GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6 GHz to 71 GHz), FR4 (52.6 GHz to 114.25 GHz), and FR5 (114.25 GHz to 300 GHz). Each of these higher frequency bands is within the EHF band range.

[0032] With the above embodiments in mind, please understand that, unless otherwise specified, terms such as “sub-6GHz” may broadly refer to frequencies that may be less than 6GHz, frequencies that may be within the FR1 range, or frequencies that may include intermediate band frequencies. Furthermore, please understand that, unless otherwise specified, terms such as “millimeter wave” may broadly refer to frequencies that may include intermediate band frequencies, frequencies that may be within the FR2, FR4, FR4-a or FR4-1, and / or FR5 ranges, or frequencies that may be within the EHF band. The frequencies included within these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) may be modified, and it is conceivable that the technologies described herein are applicable to those modified frequency ranges.

[0033] In some embodiments, the UE (e.g., UE120) may include a communications manager 140. As described in more detail elsewhere in this specification, the communications manager 140 can determine a set of beam fault detection reference signals (BFD-RS) based at least in part on active transmit configuration instruction (TCI) states relating to downlink channel reception in control resource sets (CORESETs), the CORESETs being composed of CORESET pool index values ​​exceeding a threshold, and can receive BFD-RS from base stations based at least in part on the BFD-RS set. Furthermore, or alternatively, the communications manager 140 may perform one or more other operations described herein.

[0034] In some embodiments, the UE (e.g., UE120) may include a communications manager 140. As described in more detail elsewhere in this specification, the communications manager 140 may transmit beam fault recovery (BFR) reports to base stations associated with a plurality of TRPs, at least in part based on the detection of beam fault events relating to the TRPs, receive responses from the base stations, at least in part based on the BFR reports, and reset the set of channels relating to the TRPs associated with the beam fault events, at least in part based on the receipt of those responses. Furthermore, or alternatively, the communications manager 140 may perform one or more other operations described herein.

[0035] As described above, Figure 1 is provided as one embodiment. Other embodiments may differ from those described with respect to Figure 1.

[0036] Figure 2 shows an embodiment 200 of a base station 110 communicating with a UE 120 within a wireless network 100 according to the present disclosure. The base station 110 may be equipped with a set of antennas 234a to 234t, such as T antennas (T≧1). The UE 120 may be equipped with a set of antennas 252a to 252r, such as R antennas (R≧1).

[0037] At base station 110, the transmitting processor 220 can receive data from data source 212 destined for UE120 (or a set of UE120s). The transmitting processor 220 can select one or more modulation and coding schemes (MCSs) for the UE120, at least in part on one or more channel quality indicators (CQIs) received from the UE120. Based at least in part on the MCS selected for the UE120, base station 110 can process the data for the UE120 (e.g., encode and modulate it) and provide data symbols for the UE120. The transmitting processor 220 can process system information (e.g., semi-static resource parcel information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper-layer signaling) to provide overhead symbols and control symbols. The transmit processor 220 can generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulated reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can, where applicable, perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, and can provide a set of output symbol streams (e.g., T output symbol streams) to a set of corresponding modems 232 (e.g., T modems), indicated as modems 232a to 232t. For example, each output symbol stream can be provided to a modulator component of a modem 232 (indicated as MOD). Each modem 232 can obtain an output sample stream by processing the corresponding output symbol stream (e.g., for OFDM) using the corresponding modulator component. Each modem 232 can further acquire a downlink signal by processing the output sample stream (e.g., converting it to analog, amplifying it, filtering it, and / or upconverting it) using the corresponding modulator components.Modems 232a to 232t can transmit a set of downlink signals (e.g., T downlink signals) via a corresponding set of antennas 234 (e.g., T antennas), indicated as antennas 234a to 234t.

[0038] In UE120, a set of antennas 252 (indicated as antennas 252a to 252r) can receive downlink signals from base station 110 and / or other base stations 110, and can provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems), indicated as modems 254a to 254r. For example, each received signal can be provided to a demodulator component of a modem 254 (indicated as DEMOD). Each modem 254 can acquire an input sample by adjusting the received signal (e.g., filtering, amplifying, downconverting, and / or digitizing) using its corresponding demodulator component. Each modem 254 can acquire a received symbol by further processing the input sample (e.g., for OFDM) using its demodulator component. A MIMO detector 256 can acquire a received symbol from a modem 254, and, if applicable, can perform MIMO detection on that received symbol and provide the detected symbol. The receiving processor 258 can process the detected symbols (e.g., demodulate and decode them), provide the decoded data for UE120 to the data sink 260, and provide the decoded control and system information to the controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor can determine, among many other things, the Reference Signal Received Power (RSRP) parameter, the Received Signal Indicator (RSSI) parameter, the Reference Signal Received Quality (RSRQ) parameter, and / or the CQI parameter. In some embodiments, one or more components of UE120 may be contained within the housing 284.

[0039] The network controller 130 may include a communication unit 294, a controller / processor 290, and memory 292. The network controller 130 may include, for example, one or more devices in the core network. The network controller 130 can communicate with the base station 110 via the communication unit 294.

[0040] One or more antennas (e.g., antennas 234a-234t and / or antennas 252a-252r) may include, among many other examples, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, and / or one or more antenna arrays, or may contain them within them. Antenna panels, antenna groups, sets of antenna elements, and / or antenna arrays may include one or more antenna elements (in a single housing or multiple housings), sets of coplanar antenna elements, sets of non-coplanar antenna elements, and / or one or more antenna elements coupled to one or more transmitting and / or receiving components, such as one or more components in Figure 2.

[0041] On the uplink, in UE120, the transmit processor 264 can receive and process data from data source 262 and control information (for reporting, including RSRP, RSSI, RSRQ, and / or CQI) from controller / processor 280. The transmit processor 264 can generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 can be precoded by the TX MIMO processor 266, where applicable, and further processed by the modem 254 (for DFT-s-OFDM or CP-OFDM) and transmitted to base station 110. In some embodiments, the modem 254 of UE120 may include a modulator and demodulator. In some embodiments, UE120 includes a transceiver. The transceiver may include any combination of antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, and / or TX MIMO processor 266. The transceiver can be used by a processor (e.g., controller / processor 280) and memory 282 to perform any of the methods described herein (see, for example, Figures 3 to 7).

[0042] At base station 110, uplink signals from UE 120 and / or other UEs can be received by antenna 234, processed by modem 232 (e.g., the demodulator component of modem 232, indicated as DEMOD), detected by MIMO detector 236 where applicable, and further processed by receiving processor 238 to obtain decoded data and control information transmitted by UE 120. The receiving processor 238 can provide the decoded data to data sink 239 and the decoded control information to controller / processor 240. Base station 110 may include a communication unit 244, which can communicate with network controller 130. Base station 110 may include a scheduler 246 for scheduling one or more UE 120 for downlink and / or uplink communications. In some embodiments, the modem 232 of base station 110 may include a modulator and a demodulator. In some embodiments, base station 110 includes a transceiver. The transceiver may include any combination of the antenna 234, modem 232, MIMO detector 236, receiving processor 238, transmitting processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform any aspect of the methods described herein (see, for example, Figures 3 to 7).

[0043] The controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or any other components in Figure 2 may perform one or more techniques associated with determining the BFD-RS set and resetting the beam after beam fault recovery, as will be described in more detail elsewhere in this specification. For example, the controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or any other components in Figure 2 may perform or direct the operation of, for example, process 500 in Figure 5, process 600 in Figure 6, and / or other processes as described herein. Memories 242 and 282 may store data and program code relating to base station 110 and UE 120, respectively. In some embodiments, memories 242 and / or 282 may include non-temporary computer-readable media storing one or more instructions (e.g., code and / or program code) relating to wireless communications. For example, when one or more of these instructions are executed by one or more processors in the base station 110 and / or UE 120 (for example, directly or after compilation, translation, and / or interpretation), one or more processors, UE 120, and / or base station 110 can be instructed to perform or direct the operation of, for example, process 500 in Figure 5, process 600 in Figure 6, and / or other processes described herein. In some embodiments, executing an instruction may include, among many other things, running the instruction, translating the instruction, compiling the instruction, and / or interpreting the instruction.

[0044] In some embodiments, the UE (e.g., UE120) includes means for determining a BFD-RS set based at least in part on an active TCI state relating to downlink channel reception in CORESET, wherein CORESET consists of CORESET pool index values ​​exceeding a threshold, and / or means for receiving BFD-RS from a base station based at least in part on the BFD-RS set. Such means for the UE to perform the operations described herein may include, for example, one or more of the following: communications manager 140, antenna 252, modem 254, MIMO detector 256, receiving processor 258, transmitting processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.

[0045] In some embodiments, the UE (e.g., UE120) includes means for transmitting BFR reports to base stations associated with a plurality of TRPs, at least in part based on the detection of beam obstruction events relating to the TRPs; means for receiving responses from base stations, at least in part based on the BFR reports; and / or means for resetting a set of channels relating to the TRPs associated with the beam obstruction events, at least in part based on the reception of such responses. The means for the UE to perform the operations described herein may include, for example, one or more of the following: a communications manager 140, an antenna 252, a modem 254, a MIMO detector 256, a receiving processor 258, a transmitting processor 264, a TX MIMO processor 266, a controller / processor 280, or a memory 282.

[0046] Although the blocks in Figure 2 are shown as individual components, the functions described above with respect to these blocks can be implemented in a single hardware, software, or combination of components, or in various combinations of components. For example, the functions described with respect to the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 can be performed by or under the control of the controller / processor 280.

[0047] As described above, Figure 2 is provided as one embodiment. Other embodiments may differ from those described with respect to Figure 2.

[0048] In a multi-TRP BFR, two BFD-RS sets can be supported per bandwidth portion (BWP), with a maximum of N resources per BFD-RS set. The value of N can be predefined and / or at least partially based on UE capabilities. In other words, the value of N can correspond to the maximum number of BFD-RS resources per BFD-RS set. In some cases, N can be equal to 1. The number of BFD-RS across multiple BFD-RS per downlink BWP can be associated with a fixed maximum value, or at least partially based on UE capabilities. Furthermore, BFRs per TRP can be supported in NR.

[0049] In a multi-downlink control information (multi-DCI) scenario, a BFD-RS set on a special cell (SpCell) can be associated with a physical uplink control channel (PUCCH) scheduling request (SR) (PUCCH-SR) resource, or with an SR configuration for each TRP (Track Relay Program). UE capability signaling may indicate whether the UE supports the association of a BFD-RS set on a SpCell with a PUCCH-SR resource or SR configuration for each TRP (Track Relay Program).

[0050] In multi-DCI scenarios, and for UEs having one activated TCI state per CORESET, a BFD-RS configuration can be supported in which a BFD-RS set k (k=0, 1) can be derived based at least partially on X TCIs of CORESETs having a CORESET Pool Index (CORESETPoolIndex) equal to k. The value of X can be predefined or at least partially based on the UE's capabilities. The X TCIs can be at least partially based on a TCI selection rule if the number of CORESETs having a CORESET Pool Index of k exceeds X. In some cases, those CORESETs can be associated with two or more activated TCI states. The CORESET Pool Index can be used to identify TRP identification information, and different CORESET Pool Indexes can be associated with different TRPs.

[0051] For each BWP of a serving cell, the UE can be provided with a set of periodic channel status information reference signal (CSI-RS) resource configuration indices q0 via the failure detection resources parameter. For radio link quality measurement on the serving cell's BWP, the UE can be provided with a set of periodic CSI-RS resource configuration indices and / or synchronization signal (SS) or physical broadcast channel (PBCH) block indices q1 via the candidate beam reference signal list (candidateBeamRSList or candidateBeamRSListExt-r16) parameter or the candidate beam reference signal secondary cell list (candidateBeamRSSCellList-r16) parameter. If the UE does not provide set q0 for a serving cell's BWP via the failureDetectionResources parameter or beamFailureDetectionResourceList, the UE may determine set q0 to include a periodic CSI-RS resource configuration index having the same value as the reference signal (RS) index in the reference signal set, as indicated by the TCI state for the corresponding CORESET used by the UE to monitor the physical downlink control channel (PDCCH). If two RS indices exist in the TCI state, set q0 may include an RS index with a pseudo-collocation (QCL) type D (QCL-TypeD) configuration for the corresponding TCI state. The UE may anticipate that set q0 may include up to two RS indices.

[0052] The previous method can support both explicit and implicit BFD-RS determination. However, the previous method does not specify a mechanism for selecting multiple BFD-RSs when the number of CORESETs with a CORESET pool index equal to k exceeds the value of X, and when a CORESET consists of two or more TCI states, in relation to implicit BFD-RS determination at the BFR per TRP. Furthermore, the previous method can only be applied to reset PDCCH / PUCCH beams when a beam associated with a new beam identification reference signal (NBI-RS). Furthermore, the previous method can use integrated TCI for other channels, such as physical downlink shared channels (PDSCH) or physical uplink shared channels (PUSCH). However, the previous method does not consider channels for resetting new beams after the BFR in multi-TRP operation.

[0053] In various embodiments of the technology and apparatus described herein, a UE can determine a BFD-RS set based at least in part on an active TCI state relating to downlink channel reception in a CORESET. A CORESET can consist of CORESET pool index values ​​exceeding a threshold. A UE can receive BFD-RS from a base station based at least in part on a BFD-RS set, and the base station can associate it with multiple TRPs. As a result, a UE can determine a BFD-RS set having a CORESET consisting of CORESET pool index values ​​exceeding a threshold. In some embodiments, a UE can transmit a BFR report to a base station based at least in part on the detection of a beam fault event relating to a TRP. A UE can receive a response from the base station based at least in part on the BFR report. A UE can reset the set of channels relating to the TRP associated with the beam fault event based at least in part on the receipt of that response. As a result, beam reset behavior after a BFR can be defined for the UE.

[0054] Figure 3 shows one embodiment 300 associated with the determination of the BFD-RS set according to the present disclosure. As shown in Figure 3, embodiment 300 includes communication between a UE (e.g., UE120) and a base station (e.g., base station 110). In some embodiments, the UE and base station may be located within a wireless network, such as wireless network 100.

[0055] As shown by reference number 302, a UE can determine the BFD-RS set based at least partially on the active TCI state for downlink channel reception in a CORESET. A CORESET can consist of CORESET pool index values ​​exceeding a threshold. The threshold may be based at least partially on the UE capability. A CORESET can be associated with a search space set in an order based at least partially on monitoring periodicity. If a CORESET is associated with multiple search space sets, the monitoring periodicity for ordering that CORESET may be the shortest monitoring periodicity of the search space set among the multiple search space sets associated with the CORESET. In some cases, two or more CORESETs in a CORESET may be associated with a search space set having the same monitoring periodicity, and the ordering of those two or more CORESETs may be based at least partially on the CORESET pool index.

[0056] In some embodiments, a UE can determine a BFD-RS, in which case the UE can associate it with a CORESET consisting of a number of CORESET pool indices equal to k, exceeding X (e.g., by UE capability or a predetermined value). A CORESET may correspond to a set of time and frequency resources used to carry the downlink channel. A CORESET can be localized to a specific region in the frequency domain rather than being spread across the entire channel bandwidth. In some embodiments, if a BFD-RS set k (k=0, 1) is not configured for the UE, the UE can determine the BFD-RS set k at least partially based on the active TCI state for PDCCH reception in a CORESET consisting of a CORESET pool indices equal to k and associated with the search space set in order from the shortest monitoring periodicity. If two or more CORESETs are associated with the same search space set having the same monitoring periodicity, the UE can determine the order of the CORESETs at least partially based on the CORESET identification information (ID). For example, if two or more CORESETs are associated with the same search space set having the same monitoring periodicity, the UE can determine the order of the CORESETs starting from the highest CORESET ID or the lowest CORESET ID.

[0057] In some embodiments, at least one of the CORESETs can be associated with two TCI states. A BFD-RS set may be at least partially based on the QCL RS of a CORESET composed of CORESET pool index values. In some embodiments, a BFD-RS set may be at least partially based on the QCL RS of a CORESET composed of CORESET pool index values ​​having a single TCI state. In some embodiments, a BFD-RS set may be at least partially based on the QCL RS of a CORESET composed of CORESET pool index values ​​having both a single TCI state and two TCI states. In some embodiments, a BFD-RS set may be at least partially based on the QCL RS of a CORESET composed of CORESET pool index values ​​having two TCI states. In some embodiments, a BFD-RS set may be at least partially based on the QCL RS of a CORESET consisting of CORESET pool index values ​​having a single TCI state, or on one of the QCL RS of a CORESET consisting of CORESET pool index values ​​having two TCI states. In some embodiments, the UE may, at least partially based on a rule, select one QCL RS for at least one CORESET associated with two TCI states. For example, this rule could be the QCL RS of the first TCI state in two TCI states, the QCL RS of the second TCI state in two TCI states, the QCL RS of the TCI with the lowest identifier in two TCI states, the QCL RS of the TCI with the highest identifier in two TCI states, or the QCL RS of the TCI with the smallest RS periodicity in two TCI states.

[0058] In some embodiments, if at least one CORESET is associated with two TCI states, the UE can select a BFD-RS set k based at least partially on the QCL RS of a CORESET consisting of a CORESET pool index equal to k that has only a single TCI state. In some embodiments, the UE can select a BFD-RS set k based at least partially on the QCL RS of a CORESET consisting of a CORESET pool index equal to k that has both a single TCI state and two TCI states. In some embodiments, the UE can select a BFD-RS set k based at least partially on the QCL RS of a CORESET consisting of a CORESET pool index equal to k that has two TCI states. In some embodiments, the UE can select a BFD-RS set k based at least partially on the QCL RS of a CORESET consisting of a CORESET pool index equal to k having only a single TCI state, or on one of the QCL RS of a CORESET consisting of a CORESET pool index equal to k having two TCI states, thereby preventing the UE from selecting two QCL RS from the same CORESET. In some embodiments, when selecting one QCL RS with respect to a CORESET having two TCI states, the UE can select the QCL RS of the first or second TCI, the QCL RS of the TCI with the lowest identifier or the QCL RS of the TCI with the highest identifier, or the QCL RS with the smallest RS periodicity.

[0059] As shown by reference number 304, the UE can receive BFD-RS from the base station, at least in part, based on the BFD-RS set. The UE can detect beam fault events, at least in part, based on the BFD-RS.

[0060] As described above, Figure 3 is provided as one embodiment. Other embodiments may differ from those described with respect to Figure 3.

[0061] Figure 4 shows one embodiment 400 associated with beam reset after beam fault recovery according to the present disclosure. As shown in Figure 4, embodiment 400 includes communication between a UE (e.g., UE120) and a base station (e.g., base station110). In some embodiments, the UE and base station may be located within a wireless network, such as wireless network 100.

[0062] As shown by reference number 402, a UE can transmit a BFR report to base stations associated with multiple TRPs, at least in part, based on the detection of beam obstruction events related to the TRPs. In other words, a UE can detect beam obstruction events related to TRPs, at least in part, based on BFD-RS. After detecting beam obstruction events related to TRPs, the UE can transmit a BFR report to base stations.

[0063] As indicated by reference number 404, the UE can receive a response from the base station, at least in part, based on the BFR report. This response allows the UE to confirm that the base station has received the BFR report.

[0064] As indicated by reference no. 406, if an NBI-RS is reported in the BFR report, the UE may, at least in part, reset a set of channels relating to the TRP associated with the beam fault event based on the receipt of the response. In some embodiments, the set of channels may be reset with respect to the TRP associated with the beam fault event using the beam associated with the reported NBI-RS. The set of channels may include downlink control channels and / or uplink control channels. In some embodiments, the set of channels may be reset with respect to the TRP associated with the beam fault event based at least in part on the TCI applied to the reported NBI-RS.

[0065] In some embodiments, beam reset behavior can be defined for the UE after the BFR. The UE can detect a beam fault event relating to the TRP. The UE can report a new candidate RS (e.g., NBI-RS) to the base station. The UE can report the new candidate RS in the BFR report. In some embodiments, after the UE receives a response from the base station, at least in part, based on the BFR report, the UE can use the beam associated with the reported NBI-RS to reset the PDCCH and / or PUCCH channels relating to the faulted TRP.

[0066] In some embodiments, the TCI applied to receive NBI-RS at the UE can be a joint TCI, and the TCI associated with NBI-RS can be applied to a set of channels including downlink channels such as the PDCCH channel and the PDSCH channel, and uplink channels such as the PUCCH channel and the PUSCH channel. The joint TCI can be applied to CSI-RS or Sounding Reference Signal (SRS). In some embodiments, the TCI applied to NBI-RS can be a downlink TCI, and the TCI associated with NBI-RS can be applied to a set of channels including downlink channels such as the PDCCH channel and the PDSCH channel. The downlink TCI can be applied to CSI-RS. In some embodiments, the TCI applied to NBI-RS can be an uplink TCI, and the TCI associated with NBI-RS can be applied to a set of channels including uplink channels such as the PUCCH channel and the PUSCH channel. The uplink TCI can be applied to SRS.

[0067] In some embodiments, after a UE receives a response from a base station, at least partially based on a BFR report, the UE may reset the set of channels relating to the failed TRP, depending on the TCI applied to the NBI-RS. If the TCI applied to the NBI-RS is a joint TCI, the UE may apply the TCI associated with its NBI-RS to the failed TRP with respect to multiple channels, including PDCCH, PDSCH, PUSCH, and PUCCH. In some cases, this TCI may be applied to the CSI-RS and / or SRS. If the TCI applied to the NBI-RS is a downlink TCI, the UE may apply the TCI associated with its NBI-RS to multiple channels, including PDCCH and PDSCH. In some cases, this TCI may be applied to the CSI-RS. If the TCI applied to the NBI-RS is an uplink TCI, the UE may apply the TCI associated with its NBI-RS to multiple channels, including PUCCH and PUSCH. In some cases, this TCI may be applied to the SRS.

[0068] As described above, Figure 4 is provided as one embodiment. Other embodiments may differ from those described with respect to Figure 4.

[0069] Figure 5 shows an exemplary process 500 performed by, for example, a UE according to the present disclosure. The exemplary process 500 is an embodiment in which a UE (e.g., UE120) performs operations associated with determining the BFD-RS set and resetting the beam after the BFR.

[0070] As shown in Figure 5, in some embodiments, process 500 may include determining a BFD-RS set based at least partially on the active TCI state for downlink channel reception in CORESET, where CORESET consists of CORESET pool index values ​​exceeding a threshold (block 510). For example, a UE (e.g., using the communication manager 140 and / or determination component 708 shown in Figure 7) can determine a BFD-RS set based at least partially on the active TCI state for downlink channel reception in CORESET, where CORESET consists of CORESET pool index values ​​exceeding a threshold, as described above.

[0071] As further shown in Figure 5, in some embodiments, process 500 may include receiving BFD-RS from a base station, at least in part, based on a BFD-RS set (block 520). For example, a UE (using, for example, the communications manager 140 and / or receiving component 702 shown in Figure 7) can receive BFD-RS from a base station, at least in part, based on a BFD-RS set, as described above.

[0072] Process 500 may include additional embodiments, such as any single embodiment or any combination of embodiments, as described below and / or in relation to one or more other processes described elsewhere in this specification.

[0073] In the first embodiment, the threshold is based at least in part on UE capability.

[0074] In the second embodiment, either alone or in combination with the first embodiment, CORESET is associated with a set of search spaces in an order at least partially based on monitoring periodicity.

[0075] In the third embodiment, either alone or in combination with one or more of the first and second embodiments, two or more CORESETs in a CORESET are associated with the same set of search spaces having the same monitoring periodicity, and the ordering of those two or more CORESETs is at least partially based on a CORESET pool index.

[0076] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, at least one CORESET is associated with two TCI states, and the BFD-RS set is at least partially based on the QCL RS of the CORESET, which is composed of CORESET pool index values.

[0077] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the BFD-RS set is at least partially based on the QCL RS of a CORESET, which consists of CORESET pool index values ​​having a single TCI state.

[0078] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the BFD-RS set is at least partially based on the QCL RS of a CORESET, which consists of CORESET pool index values ​​having both single TCI states and two TCI states.

[0079] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, the BFD-RS set is at least partially based on the QCL RS of a CORESET, which consists of CORESET pool index values ​​having two TCI states.

[0080] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the BFD-RS set is at least partially based on the QCL RS of a CORESET consisting of a CORESET pool index value having a single TCI state, or on one of the QCL RS of a CORESET consisting of a CORESET pool index value having two TCI states.

[0081] In the ninth aspect, either alone or in combination with one or more of the first to eighth aspects, the process 500 includes selecting one QCL RS with respect to at least one CORESET associated with two TCI states, at least partially based on the QCL RS of a first TCI state, the QCL RS of a second TCI state, the QCL RS of the TCI having the lowest identifier, the QCL RS of the TCI having the highest identifier, or the QCL RS having the smallest RS periodicity.

[0082] Figure 5 shows an exemplary block of process 500, but in some embodiments, process 500 may include additional blocks, fewer blocks, different blocks, or blocks with a configuration different from that shown in Figure 5. Furthermore, or alternatively, two or more blocks of process 500 may be executed in parallel.

[0083] Figure 6 shows an exemplary process 600 performed by, for example, a UE according to the present disclosure. The exemplary process 600 is an embodiment in which a UE (e.g., UE120) performs operations associated with determining the BFD-RS set and resetting the beam after the BFR.

[0084] As shown in Figure 6, in some embodiments, process 600 may include transmitting BFR reports to base stations associated with multiple TRPs, at least in part on the detection of beam obstruction events relating to the TRPs (block 610). For example, a UE (using, for example, the communications manager 140 and / or transmitting component 704 shown in Figure 7) can transmit BFR reports to base stations associated with multiple TRPs, at least in part on the detection of beam obstruction events relating to the TRPs, as described above.

[0085] As further shown in Figure 6, in some embodiments, process 600 may include receiving a response from the base station, at least in part, based on the BFR report (block 620). For example, the UE (using, for example, the communications manager 140 and / or receiving component 702 shown in Figure 7) can receive a response from the base station, at least in part, based on the BFR report, as described above.

[0086] As further shown in Figure 6, in some embodiments, process 600 may include resetting a set of channels relating to the TRP associated with the beam fault event, at least in part, based on the reception of its response (block 630). For example, the UE (using, for example, the communications manager 140 and / or reset component 710 shown in Figure 7) can reset a set of channels relating to the TRP associated with the beam fault event, at least in part, based on the reception of its response, as described above.

[0087] Process 600 may include additional embodiments, such as any single embodiment or any combination of embodiments, as described below and / or in relation to one or more other processes described elsewhere in this Specified Specification.

[0088] In the first embodiment, the set of channels is reset with respect to the TRP associated with the beam fault event, using the beam associated with the reported NBI-RS.

[0089] In the second embodiment, the set of channels, either alone or in combination with the first embodiment, includes one or more downlink control channels or uplink control channels.

[0090] In the third embodiment, either alone or in combination with one or more of the first and second embodiments, a set of channels is reset with respect to the TRP associated with a beam obstruction event, at least in part, based on the TCI applied to the reported NBI-RS.

[0091] In the fourth aspect, the TCI applied to the NBI-RS, either alone or in combination with one or more of the first to third aspects, is a joint TCI, and the TCI associated with the NBI-RS is applied to a set of channels, including downlink and uplink channels.

[0092] In the fifth aspect, the joint TCI is applied to one or more CSI-RS or SRS, either alone or in combination with one or more of the first to fourth aspects.

[0093] In the sixth aspect, the TCI applied to the NBI-RS, either alone or in combination with one or more of the first to fifth aspects, is a downlink TCI, and the TCI associated with the NBI-RS is applied to a set of channels that include downlink channels.

[0094] In the seventh aspect, the downlink TCI is applied to the CSI-RS either alone or in combination with one or more of the first to sixth aspects.

[0095] In the eighth aspect, the TCI applied to the NBI-RS, either alone or in combination with one or more of the first to seventh aspects, is an uplink TCI, and the TCI associated with the NBI-RS is applied to a set of channels including uplink channels.

[0096] In the ninth aspect, the uplink TCI is applied to the SRS either alone or in combination with one or more of the first to eighth aspects.

[0097] Figure 6 shows an exemplary block of process 600, but in some embodiments, process 600 may include additional blocks, fewer blocks, different blocks, or blocks with a configuration different from that shown in Figure 6. Furthermore, or alternatively, two or more blocks of process 600 may be executed in parallel.

[0098] Figure 7 shows an exemplary apparatus 700 for wireless communication. The apparatus 700 may be a UE, or the UE may include the apparatus 700. In some embodiments, the apparatus 700 includes a receiving component 702 and a transmitting component 704 that can communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, the apparatus 700 can use the receiving component 702 and the transmitting component 704 to communicate with another apparatus 706 (such as a UE, a base station, or another wireless communication device). As further shown, the apparatus 700 may include a communication manager 140. The communication manager 140 may include, among many other examples, one or more of the determination component 708 or the reset component 710.

[0099] In some embodiments, the device 700 may be configured to perform one or more operations described herein in relation to Figures 3 and 4. Furthermore, or alternatively, the device 700 may be configured to perform one or more processes described herein, such as process 500 in Figure 5, process 600 in Figure 6, or a combination thereof. In some embodiments, the device 700, and / or one or more components shown in Figure 7, may include one or more components of the UE described in relation to Figure 2. Furthermore, or alternatively, one or more components shown in Figure 7 may be implemented within one or more components described in relation to Figure 2. Furthermore, or alternatively, one or more components of a set of components may be implemented, at least in part, as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-temporary computer-readable medium and executable by a controller or processor to perform the function or operation of that component.

[0100] The receiving component 702 can receive communications from the device 706, such as reference signals, control information, data communications, or combinations thereof. The receiving component 702 can provide the received communications to one or more other components of the device 700. In some embodiments, the receiving component 702 can perform signal processing on the received communications (among many examples, filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference rejection, or decoding), and provide the processed signals to one or more other components of the device 700. In some embodiments, the receiving component 702 may include one or more antennas, modems, demodulators, MIMO detectors, receiving processors, controllers / processors, memory, or combinations thereof of the UE described in relation to Figure 2.

[0101] The transmitting component 704 can transmit communications such as reference signals, control information, data communications, or combinations thereof to the device 706. In some embodiments, one or more other components of the device 700 can generate communications and provide these generated communications to the transmitting component 704 for transmission to the device 706. In some embodiments, the transmitting component 704 can perform signal processing on the generated communications (among many examples, filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or coding) and transmit these processed signals to the device 706. In some embodiments, the transmitting component 704 may include one or more antennas, modems, modulators, transmitting MIMO processors, transmitting processors, controllers / processors, memory, or combinations thereof of the UE described in relation to Figure 2. In some embodiments, the transmitting component 704 may be installed alongside the receiving component 702 in the transceiver.

[0102] The determination component 708 can determine a BFD-RS set based at least partially on the active TCI state for downlink channel reception in CORESET, where CORESET consists of CORESET pool index values ​​exceeding a threshold. The reception component 702 can receive BFD-RS from the base station based at least partially on the BFD-RS set.

[0103] The transmitting component 704 can transmit BFR reports to base stations associated with multiple TRPs, at least in part, based on the detection of beam fault events related to the TRPs. The receiving component 702 can receive responses from base stations, at least in part, based on the BFR reports. The reset component 710 can reset the set of channels related to the TRPs associated with the beam fault events, at least in part, based on the reception of those responses.

[0104] The number and configuration of components shown in Figure 7 are provided as an example. In practice, there may be additional components, fewer components, different components, or components with configurations different from those shown in Figure 7. Furthermore, two or more components shown in Figure 7 may be implemented within a single component, or a single component shown in Figure 7 may be implemented as multiple distributed components. Furthermore, or alternatively, a set of (one or more) components shown in Figure 7 may perform one or more functions that are described as being performed by another set of components shown in Figure 7.

[0105] The following provides an overview of some aspects of this disclosure.

[0106] Embodiment 1: A method for wireless communication performed by a user device (UE), comprising determining a set of beam fault detection reference signals (BFD-RS) based at least in part on an active transmit configuration instruction (TCI) state relating to downlink channel reception in a control resource set (CORESETs), wherein the CORESET consists of CORESET pool index values ​​exceeding a threshold, and receiving BFD-RS from a base station based at least in part on the BFD-RS set.

[0107] Embodiment 2: The method of Embodiment 1, wherein the threshold is at least partially based on UE capability.

[0108] Embodiment 3: Any method of Embodiments 1 and 2, wherein the CORESET is associated with the search space set in an order at least partially based on monitoring periodicity.

[0109] Embodiment 4: A method among Embodiments 1 to 3, wherein two or more CORESETs in a CORESET are associated with a set of search spaces having the same monitoring periodicity, and the ordering of those two or more CORESETs is at least partially based on a CORESET pool index.

[0110] Embodiment 5: Any method of Embodiments 1 to 4, wherein at least one of the CORESETs is associated with two TCI states, and the BFD-RS set is at least partially based on the pseudo-collocation (QCL) reference signal (RS) of the CORESET, which consists of CORESET pool index values.

[0111] Embodiment 6: The method of Embodiment 5, wherein the BFD-RS set is at least partially based on the QCL RS of a CORESET, which consists of CORESET pool index values ​​having a single TCI state.

[0112] Embodiment 7: The method of Embodiment 5, at least in part, based on the QCL RS of a CORESET, the BFD-RS set comprising CORESET pool index values ​​having both single TCI states and two TCI states.

[0113] Embodiment 8: The method of Embodiment 5, wherein the BFD-RS set is at least partially based on the QCL RS of a CORESET, which consists of CORESET pool index values ​​having two TCI states.

[0114] Embodiment 9: The method of Embodiment 5, wherein the BFD-RS set is at least partially based on a QCL RS of a CORESET consisting of a CORESET pool index value having a single TCI state, or on one of the QCL RS of a CORESET consisting of a CORESET pool index value having two TCI states.

[0115] Embodiment 10: The method of Embodiment 5, further comprising selecting one QCL RS with respect to at least one CORESET associated with two TCI states, at least partially based on the QCL RS of a first TCI state, the QCL RS of a second TCI state, the QCL RS of the TCI having the lowest identifier, the QCL RS of the TCI having the highest identifier, or the QCL RS having the smallest RS periodicity.

[0116] Embodiment 11: A method of wireless communication performed by a user device (UE), comprising: transmitting a beam fault recovery (BFR) report to a base station associated with a plurality of transmit / receive points (TRPs), at least in part on the detection of a beam fault event relating to the TRPs; receiving a response from the base station, at least in part on the BFR report; and resetting a set of channels relating to the TRPs associated with the beam fault event, at least in part on the reception of the response.

[0117] Embodiment 12: The method of Embodiment 11, wherein the set of channels is reset with respect to the TRP associated with a beam fault event using the beam associated with the newly reported beam identification reference signal.

[0118] Embodiment 13: Any method of Embodiments 11 or 12, wherein the set of channels includes one or more downlink control channels or uplink control channels.

[0119] Embodiment 14: Any method of Embodiments 11 to 13, wherein the set of channels is reset with respect to the TRP associated with a beam fault event, at least in part, based on a transmit configuration indicator (TCI) applied to a newly reported beam identification reference signal (NBI-RS).

[0120] Embodiment 15: The method of Embodiment 14, wherein the TCI applied to the NBI-RS is a joint TCI, and the TCI associated with the NBI-RS is applied to a set of channels, including downlink channels and uplink channels.

[0121] Embodiment 16: The method of Embodiment 15, wherein the joint TCI is applied to one or more of the channel state information reference signals or sounding reference signals.

[0122] Embodiment 17: The method of Embodiment 14, wherein the TCI applied to the NBI-RS is a downlink TCI, and the TCI associated with the NBI-RS is applied to a set of channels including downlink channels.

[0123] Embodiment 18: The method of Embodiment 17, wherein the downlink TCI is applied to the channel state information reference signal.

[0124] Embodiment 19: The method of Embodiment 14, wherein the TCI applied to the NBI-RS is an uplink TCI, and the TCI associated with the NBI-RS is applied to a set of channels including uplink channels.

[0125] Embodiment 20: The method of Embodiment 19, wherein the uplink TCI is applied to the sounding reference signal.

[0126] Embodiment 21: A device for wireless communication in a device, comprising a processor, a memory coupled to the processor, and instructions stored in the memory, which are executable by the processor to cause the device to perform one or more of the methods of Embodiments 1 to 10.

[0127] Embodiment 22: A device for wireless communication comprising a memory and one or more processors coupled to the memory, wherein one or more processors are configured to perform one or more of the methods of Embodiments 1 to 10.

[0128] Embodiment 23: An apparatus for wireless communication comprising at least one means for carrying out one or more of the methods of Embodiments 1 to 10.

[0129] Embodiment 24: A non-temporary computer-readable medium storing code relating to wireless communication, wherein the code includes instructions that are executable by a processor to perform one or more of the methods of Embodiments 1 to 10.

[0130] Embodiment 25: A non-temporary computer-readable medium storing a set of instructions for wireless communication, wherein the set of instructions comprises one or more instructions, and when one or more instructions are executed by one or more processors of the device, the device causes the device to perform one or more of the methods of Embodiments 1 to 10.

[0131] Embodiment 26: A device for wireless communication in a device, comprising a processor, a memory coupled to the processor, and instructions stored in the memory, which are executable by the processor to cause the device to perform one or more of the methods of Embodiments 11 to 20.

[0132] Embodiment 27: A device for wireless communication comprising a memory and one or more processors coupled to the memory, wherein one or more processors are configured to perform one or more of the methods of Embodiments 11 to 20.

[0133] Embodiment 28: An apparatus for wireless communication comprising at least one means for carrying out one or more of the methods of Embodiments 11 to 20.

[0134] Embodiment 29: A non-temporary computer-readable medium storing code relating to wireless communication, wherein the code includes instructions that are executable by a processor to perform one or more of the methods of Embodiments 11 to 20.

[0135] Embodiment 30: A non-temporary computer-readable medium storing a set of instructions for wireless communication, wherein the set of instructions comprises one or more instructions, and when one or more instructions are executed by one or more processors of the device, the device causes the device to perform one or more of the methods of Embodiments 11 to 20.

[0136] The foregoing disclosures are illustrative and explanatory, but are not intended to be exhaustive or to limit the forms to those disclosed. Modifications and variations may be made in light of the foregoing disclosures or obtained from the practice of the forms.

[0137] Where used herein, the term “Components” is intended to be interpreted broadly as hardware and / or combinations of hardware and software. “Software” is intended to be interpreted broadly as instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, and / or functions, whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, among many other examples. Where used herein, “Processor” is implemented in hardware and / or combinations of hardware and software. It will become clear that the systems and / or methods described herein can be implemented in various forms of hardware and / or combinations of hardware and software. The actual specialized control hardware or software code used to implement these systems and / or methods is not limited to these embodiments. Therefore, it will be understood that those skilled in the art can design software and hardware to implement the system and / or method based at least in part on the description herein; thus, the operation and behavior of the system and / or method are described herein without reference to specific software code.

[0138] As used herein, “meeting the threshold” may mean, depending on the context, that a value is greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, or not equal to the threshold.

[0139] Even if certain combinations of features are enumerated in the claims and / or disclosed herein, those combinations are not intended to limit the disclosure of various embodiments. Many of these features can be combined in ways not specifically enumerated in the claims and / or disclosed herein. The disclosure of various embodiments includes each dependent claim in combination with any other claim in the set of claims. As used herein, the phrase "at least one of" the list of items refers to any combination of those items, including a single member. As an example, “at least one of a, b, or c” is intended to encompass a, b, c, a+b, a+c, b+c, and a+b+c, as well as any combination having multiple identical elements (e.g., a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c, and c+c+c, or any other sequence of a, b, and c).

[0140] None of the elements, actions, or commands used herein should be construed as essential or mandatory unless expressly stated otherwise. Furthermore, as used herein, the articles “a” and “an” are intended to include one or more items and may be used interchangeably with “one or more.” Additionally, as used herein, the article “the” is intended to include one or more items referred to in relation to the article “the” and may be used interchangeably with “one or more.” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items and may be used interchangeably with “one or more.” When only one item is intended, the phrase “only one” or similar words are used. Also, as used herein, terms such as “has,” “have,” and “having” are intended to be open-ended terms that do not limit the elements they modify (for example, an element that “has” A may also have B). Furthermore, unless otherwise specified, the phrase "based on" is intended to mean "at least partially based on." Also, as used herein, the term "or" is intended to be inclusive when used in a series and may be used interchangeably with "and / or" unless otherwise specified (for example, when used in combination with "either" or "only one of").

Claims

1. A method of wireless communication performed by user equipment (UE), Determining a set of beam fault detection reference signals (BFD-RS) based at least in part on active transmit configuration instruction (TCI) states relating to downlink channel reception in control resource sets (CORESETs), wherein the CORESETs consist of CORESET pool index values ​​exceeding a threshold, two or more CORESETs in the CORESETs are associated with a search space set having the same monitoring periodicity, the ordering of the two or more CORESETs is at least in part on the CORESET pool index, and the BFD-RS set is at least in part on the pseudo-collocation (QCL) reference signals (RS) of the CORESETs consisting of CORESET pool index values ​​having two TCI states, the QCL RS of the TCI with the lowest identifier, the QCL RS of the TCI with the highest identifier, or the QCL with the smallest RS periodicity. Based at least partially on the RS, one QCL RS is selected or determined for at least one CORESET associated with the two TCI states. A method comprising receiving a BFD-RS from a base station, at least in part, based on the BFD-RS set.

2. The method according to claim 1, wherein the threshold is at least partially based on UE capability.

3. The method according to claim 1, wherein the CORESET is associated with the search space set in an order at least partially based on monitoring periodicity.

4. A device for wireless communication in user equipment (UE), Memory and One or more processors coupled to the memory, Based at least partially on the active transmit configuration instruction (TCI) states for downlink channel reception in control resource sets (CORESETs), a set of beam fault detection reference signals (BFD-RS) is determined, wherein the CORESET consists of CORESET pool index values ​​exceeding a threshold, two or more CORESETs in the CORESET are associated with a search space set having the same monitoring periodicity, the ordering of the two or more CORESETs is at least partially based on the CORESET pool index, and the BFD-RS set is at least partially based on the pseudo-collocation (QCL) reference signals (RS) of the CORESET consisting of the CORESET pool index values ​​having two TCI states, the QCL RS of the TCI with the lowest identifier, the QCL RS of the TCI with the highest identifier, or the QCL with the smallest RS periodicity. Based at least partially on the RS, one QCL RS is selected with respect to at least one CORESET associated with the two TCI states, An apparatus comprising: one or more processors configured to receive BFD-RS from a base station, at least in part, based on the BFD-RS set.

5. The apparatus according to claim 4, wherein the CORESET is associated with the search space set in an order at least partially based on monitoring periodicity.

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