Methods for designing and configuring resource signaling

Abstract

A wireless communication method for use in a wireless terminal is disclosed, the wireless communication method comprising prioritizing reception of a first resource upon the occurrence of at least one event, the first resource and a second resource overlapping by at least one unit of time.

Description

Technical Field

[0001] This document generally relates to wireless communication.

Background Art

[0002] In the new radio (NR) technology of the fifth generation (5G), a user equipment (UE) supporting multiple panels can simultaneously receive multiple downlink (DL) channels or reference signals (RS) using different beams, which requires associating different beams of multiple DL channels or RSs with different panels. However, when different beams are associated with the same panel at a given instant, the behavior of the UE is unknown and the UE may not be able to resolve this collision.

[0003] This document relates to methods, systems, and devices for the design and configuration of resource signaling.

Summary of the Invention

Means for Solving the Problems

[0004] This disclosure relates to a wireless communication method for use in a wireless terminal. The wireless communication method comprises prioritizing reception of a first resource when at least one event occurs, where the first resource and the second resource overlap in at least one time unit.

[0005] Various embodiments can preferably implement the following features. Preferably, the step of prioritizing reception of the first resource comprises receiving only the first resource, or not receiving the second resource,

[0006] Preferably, at least one event is the second resource is not configured in a transmission configuration indicator (TCI) state The second resource consists of multiple TCI states, and the activation command does not indicate one of the multiple TCI states. The offset between the physical downlink control channel (PDCCH) that schedules the second resource and the second resource is smaller than the threshold. The second resource does not overlap with at least one of the data resource or reference signal (RS) resource, and the data resource or RS resource is indicated to have a TCI state. The first piece of information associated with the first resource is the same as the first piece of information associated with the second resource, or The system comprises at least one of the following: the second information associated with the first resource is the same as the second information associated with the second resource.

[0007] Preferably, the first information comprises at least one of a panel index or set.

[0008] Preferably, the second information comprises at least one of a control resource set (CORESET) group, a component carrier (CC), or a CC group.

[0009] Preferably, the first information associated with the first resource includes first information associated with a TCI state applicable to the first resource.

[0010] Preferably, the first information associated with the second resource comprises first information associated with a TCI state applicable to the second resource.

[0011] Preferably, the TCI state applicable to the first resource comprises a TCI state activated by the media access control element (MAC-CE) of the first resource.

[0012] Preferably, the TCI state applicable to the second resource includes at least one of the following: a TCI state activated by the MAC-CE of the second resource, a TCI state indicated by the downlink control information (DCI) of the second resource, the default TCI of the second resource, or a TCI state configured by the radio resource control (RRC) signaling of the second resource.

[0013] Preferably, the first information associated with the first resource includes the first information associated with a quasi-collocation (QCL) RS applicable to the first resource.

[0014] Preferably, the first information associated with the second resource includes the first information associated with the QCL RS applicable to the second resource.

[0015] Preferably, the QCL RS applicable to the first resource is: The Synchronization Signal Block (SSB) or Channel State Information Reference Signal (CSI-RS) in the TCI state applicable to the first resource, The SSB identified in the initial access procedure for the first resource, In a random access procedure initiated by a reconfiguration using a synchronization procedure, the SSB or CSI-RS identified for the first resource, or The most recent random access procedure, not initiated by a PDCCH sequence that triggers a non-conflicting random access procedure, comprises at least one of the SSBs identified for a first resource.

[0016] Preferably, the QCL RS applicable to the second resource is: The Synchronization Signal Block (SSB) or CSI-RS in the TCI state applicable to the second resource, The SSB identified in the initial access procedure for the second resource, In a random access procedure initiated by a reconfiguration using a synchronous procedure, the SSB or CSI-RS identified for the second resource, or In the most recent random access procedure not started by the PDCCH order triggering the non-competing random access procedure, it includes at least one of the SSBs identified for the second resource.

[0017] Preferably, the first information associated with the first resource includes the first information associated with the second information associated with the first resource.

[0018] Preferably, the first information associated with the second resource includes the first information associated with the second information associated with the second resource.

[0019] Preferably, the first information associated with the first resource includes the first information associated with the third information associated with the QCL RS associated with the first resource.

[0020] Preferably, the first information associated with the second resource includes the first information associated with the third information associated with the QCL RS associated with the second resource.

[0021] Preferably, the third information includes at least one of a random access channel (RACH) opportunity or a preamble.

[0022] Preferably, the second information associated with the second resource includes at least one of the second information associated with the CORESET associated with the second resource, the CORESET scheduling the second resource, or the second information associated with the default CORESET of the second resource.

[0023] Preferably, the first information associated with the first resource includes the first information associated with the second information associated with the first resource.

[0024] Preferably, the first information associated with the second resource includes the first information associated with the second information associated with the CORESET associated with the second resource.

[0025] Preferably, the CORESET associated with the second resource comprises at least one of the default CORESET for the second resource or the CORESET that schedules the second resource.

[0026] Preferably, the first information is determined according to at least one of an initial procedure or a random access procedure for identifying the QCL RS.

[0027] Preferably, the first resource comprises at least one of a control resource, a CORESET, or a PDCCH.

[0028] Preferably, the second resource comprises at least one of the following: a control resource, a CORESET, a PDCCH, a data resource, a physical shared channel (PDSCH), an RS resource, an RS, a CSI-RS resource, or a CSI-RS.

[0029] This disclosure relates to wireless terminals, and wireless terminals are, A processor configured to prioritize receiving a first resource when at least one event occurs, The first and second resources overlap by at least one time unit.

[0030] Various embodiments can preferably implement the following features: Preferably, the processor is configured to perform one of the wireless communication methods described above.

[0031] This disclosure relates to a computer program product comprising stored computer-readable program medium code, wherein, when the code is executed by a processor, the processor causes the processor to perform a wireless communication method as described in any of the above methods.

[0032] The exemplary embodiments disclosed herein are intended to provide features that will be readily apparent by referring to the following description in conjunction with the accompanying drawings. Various embodiments disclose exemplary systems, methods, devices, and computer program products. However, it should be understood that these embodiments are presented as examples and not as limitations, and it will be apparent to those skilled in the art who have read this disclosure that various modifications to the disclosed embodiments can be made while remaining within the scope of this disclosure.

[0033] Therefore, this disclosure is not limited to the exemplary embodiments and uses described and illustrated herein. Furthermore, the specific order and / or hierarchy of steps in the methods disclosed herein are merely exemplary. Based on design preferences, the specific order or hierarchy of steps in the disclosed methods or processes can be rearranged while remaining within the scope of this disclosure. Accordingly, those skilled in the art will understand that the methods and techniques disclosed herein present various steps or operations in a sample order, and that this disclosure is not limited to the specific order or hierarchy presented unless otherwise specified.

[0034] The above and other aspects and their embodiments will be described in more detail in the drawings, description and claims. [Brief explanation of the drawing]

[0035] [Figure 1] An example of a schematic diagram of a wireless terminal according to an embodiment of this disclosure is shown. [Figure 2] An example of a schematic diagram of a wireless network node according to one embodiment of this disclosure is shown. [Figure 3] A schematic diagram of a user device having two panels that communicate with two component carriers, according to one embodiment of the present disclosure, is shown. [Figure 4] A schematic diagram of a user device having two panels that communicate with two component carriers, according to one embodiment of the present disclosure, is shown. [Figure 5] A schematic diagram of a user device having two panels that communicate with two transmitting and receiving points, according to one embodiment of the present disclosure, is shown. [Figure 6] A schematic diagram of a user device having two panels that communicate with two transmitting and receiving points, according to one embodiment of the present disclosure, is shown. [Figure 7] A schematic diagram of a user device having two panels that communicate with two transmitting and receiving points, according to one embodiment of the present disclosure, is shown. [Figure 8] A schematic diagram of a user device having two panels that communicate with two transmitting and receiving points, according to one embodiment of the present disclosure, is shown. [Figure 9] A flowchart of a process according to one embodiment of this disclosure is shown. [Modes for carrying out the invention]

[0036] Figure 1 relates to a schematic diagram of a wireless terminal 10 according to one embodiment of the present disclosure. The wireless terminal 10 may be, but is not limited to, a user device (UE), a mobile phone, a laptop, a tablet computer, an e-reader, or a portable computer system. The wireless terminal 10 may include a processor 100, such as a microprocessor or application-specific integrated circuit (ASIC), a storage unit 110, and a communication unit 120. The storage unit 110 may be any data storage device that stores program code 112 accessed and executed by the processor 100. Embodiments of the storage unit 112 include, but are not limited to, a subscriber identification module (SIM), read-only memory (ROM), flash memory, random access memory (RAM), a hard disk, and an optical data storage device. The communication unit 120 may be a transceiver and is used to send and receive signals (e.g., messages or packets) according to the processing results of the processor 100. In one embodiment, the communication unit 120 sends and receives signals via at least one antenna 122 shown in Figure 1.

[0037] In one embodiment, the storage unit 110 and the program code 212 may be omitted, and the processor 100 may include a storage unit having the stored program code.

[0038] The processor 100 may, for example, perform any of the steps in the illustrated embodiment at the wireless terminal 10 by executing program code 112.

[0039] The communication unit 120 may be a transceiver. Alternatively or additionally, the communication unit 120 may be a combination of a transmitting unit and a receiving unit configured to transmit and receive signals to and from a wireless network node (e.g., a base station), respectively.

[0040] Figure 2 relates to a schematic diagram of a wireless network node 20 according to one embodiment of the present disclosure. The wireless network node 20 may be, but is not limited herein, a satellite, a base station (BS), a network entity, a mobility management entity (MME), a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), a radio access network (RAN), a next-generation RAN (NG-RAN), a data network, a core network, or a wireless network controller (RNC). Furthermore, the wireless network node 20 may include (perform) at least one network function, such as an access and mobility management function (AMF), a session management function (SMF), a user place function (UPF), a policy control function (PCF), or an application function (AF). The wireless network node 20 may include a processor 200 such as a microprocessor or ASIC, a storage unit 210, and a communication unit 220. The storage unit 210 may be any data storage device that stores program code 212 accessed and executed by the processor 200. Examples of the memory unit 212 include, but are not limited to, SIM, ROM, flash memory, RAM, hard disk, and optical data storage device. The communication unit 220 may be a transceiver and is used to send and receive signals (e.g., messages or packets) according to the processing results of the processor 200. In one example, the communication unit 220 sends and receives signals via at least one antenna 222 shown in Figure 2.

[0041] In one embodiment, the storage unit 210 and the program code 212 may be omitted. The processor 200 may include a storage unit having the stored program code.

[0042] The processor 200 may perform any of the steps described in the illustrated embodiment at the wireless network node 20, for example, by executing program code 212.

[0043] The communication unit 220 may be a transceiver. Alternatively or additionally, the communication unit 220 may be a combination of a transmitting unit and a receiving unit configured to transmit and receive signals to and from a wireless terminal (e.g., user equipment), respectively.

[0044] In this disclosure, “panel” corresponds to an antenna group, an antenna port group, a beam group, a subarray, a UE panel (i.e., a panel of a UE), a transmitting entity / unit, or a receiving entity / unit.

[0045] In this disclosure, the definition of “Transmit Configuration Indicator (TCI) state” corresponds to a quasi-collocation (QCL) state or QCL assumption. Specifically, a “TCI state” consists of one or more reference RSs (also called QCL RSs) and their corresponding QCL type parameters, the QCL type parameters comprising at least one of the following: Doppler spread, Doppler shift, delay spread, mean delay, mean gain, and spatial parameters in any or combination thereof. For example, the QCL type includes “QCL-TypeD,” which is used to represent the same or quasi-identical “spatial parameters” between the target “RS or channel” and one or more reference QCL-TypeD RSs. In other words, “spatial parameters” may also be called beams.

[0046] Specifically, "QCL" or "QCL assumption" comprises at least one of the following: Doppler spread, Doppler shift, delay spread, mean delay, mean gain, and a form or combination of spatial parameters.

[0047] In this disclosure, the definition of a "Control Resource Set (CORESET) Group Index" corresponds to an index of a group comprising one or more CORESETs, and can be constructed using a higher-level configuration (e.g., CORESETPoolIndex).

[0048] In this disclosure, the definition of "component carrier (CC)" corresponds to the serving cell or bandwidth portion (BWP) of the CC.

[0049] In this disclosure, the definition of a "CC group" corresponds to a group comprising one or more CCs, and can be configured by a higher-level configuration (e.g., simultaneous TCIUpdateList-r16, simultaneous TCI-UpdateListSecond-r16).

[0050] In this disclosure, the definition of “panel” or “UE panel” corresponds to a physical or logical antenna group or antenna panel of the UE.

[0051] In this disclosure, a “codepoint” occurs in the A bit (where A is a positive integer) within the Downlink Control Information (DCI), and each codepoint corresponds to an activated TCI state. For example, a “codepoint” may also be a TCI codepoint occurring in 3 bits within the DCI, and each TCI codepoint (e.g., 000, 001, ..., 111) corresponds to an activated TCI state applicable to the DL signal.

[0052] For the sake of clarity, in this disclosure, "the CORESET with the lowest CORESET-ID among the CORESETs configured using the same CORESET group index as the PDCCH that schedules the data resource or RS resource in the latest slot monitored by the UE within the CC's active BWP" may be referred to as "the default CORESET for the data resource or RS resource." Also, "the TCI state applicable to the default CORESET for the data resource or RS resource" may be referred to as "the default TCI state for the data resource or RS resource."

[0053] In this disclosure, the definition of "CORESET" corresponds to PDCCH and DCI. In this disclosure, the definition of "PDSCH resource" corresponds to PDSCH.

[0054] In this disclosure, the definition of "CSI-RS resource" corresponds to CSI-RS. In this disclosure, “time unit” may be a subsymbol, symbol, slot, subframe, frame, monitoring opportunity, or transmission opportunity.

[0055] In this disclosure, “symbol” refers to an orthogonal frequency division multiplexing (OFDM) symbol. In this disclosure, “X is associated with Y” means that X and Y have a direct or indirect relationship. For example, X may be determined according to Y, and / or Y may be determined based on X.

[0056] In 5G NR, supporting multiple panels is gradually becoming a fundamental capability of UEs to enable the reception of multiple different DL channels (e.g., PDCCH / PDSCH) or RS (e.g., CSI-RS) and / or the simultaneous transmission of multiple different uplink (UL) channels (e.g., PUCCH / PUSCH) or RS (e.g., SRS) using different (analog) beams. In one embodiment, “panel” refers to a physical antenna panel or group of antennas deployed on the UE, and different panels may be oriented in different directions in actual deployment. It should be noted that at a given moment, only one receive beam (Rx beam) or transmit beam (Tx beam) is formed within a panel. Therefore, in the case of a UE supporting two panels, the UE can simultaneously receive one of PDCCH, PDSCH, or CSI-RS and another of PDCCH, PDSCH, or CSI-RS using two different Rx beams.

[0057] Figure 3 shows a schematic diagram of a UE having two panels communicating with two CCs according to one embodiment of the present disclosure. Specifically, in carrier aggregation (CA), the UE can simultaneously receive PDCCH-1 transmitted from CC-0 and PDSCH-2 transmitted from CC-1, using a longitudinal striped beam and a grid pattern beam, respectively. In one embodiment, the beam with longitudinal stripes is obtained according to a QCL RS (e.g., QCL-TypeD-RS) of a TCI state indicated by a DCI transmitted from CC-0. Similarly, the grid pattern beam is obtained according to a QCL-TypeD-RS of a TCI state indicated by a DCI transmitted from CC-1. As shown in Figure 3, the longitudinal striped beam and the grid pattern beam are associated with panel-0 and panel-1 of the UE, respectively. In one embodiment, PDSCH-1 and PDSCH-2 may also be transmitted from transmit-receive points (TRPs) TRP-0 and TRP-1, respectively, within the same serving cell.

[0058] Figure 4 shows a schematic diagram of a UE having two panels communicating with two CCs according to one embodiment of the present disclosure. In this embodiment, at a given moment, the vertical stripe beam and the grid pattern beam are associated with the same panel (i.e., panel-1), and the UE cannot form two different beams on one panel. Even if this situation can be avoided by strict control of the gNB, a situation that is difficult to avoid is when two PDCCHs collide (e.g., completely or partially overlapping in at least one symbol) and the CORESET corresponding to one PDCCH is not configured in a TCI state. In such a situation, the beam of the PDCCH without a configured TCI state must follow a synchronization signal block (SSB) identified by the UE during the random / initial access procedure. Also, the other PDCCH is indicated in a TCI state. This makes it likely that the two CORESET beams will be associated with the same panel. In such a case, the UE will not be able to receive two DL channels or RSs properly, wasting resources and power and degrading the performance of the communication system.

[0059] In one embodiment, in the case of multiple different channels or RS transmitted from different CCs within a CA, or from different TRPs within a single CC, a control channel (e.g., PDCCH) may collide with another control channel (e.g., PDCCH), data channel (e.g., PDSCH), or RS (e.g., CSI-RS). That is, one control channel and another control channel, data channel, or RS channel may overlap within at least one OFDM symbol, and the beams of the competing channels or RSs are associated with the same panel. To clarify the behavior of the UE in this collision, this disclosure provides a method for resolving this collision. In one embodiment, this method is: The UE is expected to prioritize receiving the first control resource if at least one of the following conditions is met (for example, when it is met): - The first control resource and the second control resource, data resource, or RS resource overlap in at least one symbol. In one embodiment, the second control resource and / or the data resource and / or the RS resource may be collectively referred to as the second resource for convenience. Also, the first control resource may be collectively referred to as the first resource for convenience. -UE does not provide configuration of the TCI state for the second control resource. -UE is provided with the initial configuration of two or more TCI states for the second control resource and does not receive a MAC-CE activation command for one of the TCI states. - The offset between the PDCCHs scheduling the data resource or RS resource is below a threshold. Specifically, the offset refers to one or more time units (e.g., symbols) between the PDCCHs scheduling the data resource or RS resource. The threshold refers to a threshold determined based on the reported UE capability, e.g., beam switching time (timeDurationForQCL or beamSwitchTiming), and includes the subcarrier space (SCS) of the RS resource and / or beam switching timing delay. - No other data resources or RS resources exist that have the same TCI status as the RS resource, indicated within the same symbol.

[0060] or - The first information associated with a first control resource is the same as the first information associated with a second control resource, data resource, or RS resource, and the first information includes at least one of a panel index, a set, and / or a set index. Specifically, the first information can implicitly or explicitly refer to a panel of a UE. For example, the value of a panel index can explicitly indicate a panel of a single UE. Alternatively, the panel index may be a group ID included in a group-based channel status information (CSI) report, and the group ID implicitly indicates a panel of a UE. In one embodiment, a set may be a set of TCI states or RSs configured by a higher-layer configuration, and each set is associated with a panel of a particular UE. In other words, a set implicitly indicates a panel of a single UE. In one embodiment, a set index refers to the index of the set to which the TCI states or RSs belong. Furthermore, the set index implicitly indicates a panel of a single UE. In one embodiment, "a set associated with A" corresponds to "a set index associated with A". - The second information associated with the first control resource is the same as the second information associated with the second control resource, data resource, or RS resource, and the second information includes at least one of the CORESET group index, CC index, and / or CC group. In one embodiment, "CORESET group index / CC index / CC group index associated with A" corresponds to "CORESET group / CC / CC group associated with A".

[0061] In one embodiment, the first information associated with the first control resource is the same as the first information associated with the second control resource, data resource, or RS resource. This includes at least one of the following: - The first information associated with a TCI state applicable to a first control resource is the same as the first information associated with a TCI state applicable to a second control resource, data resource, or RS resource. - The first information associated with a QCL RS applicable to a first control resource is the same as the first information associated with a QCL RS applicable to a second control resource, data resource, or RS resource. - The first information associated with the second information associated with the first control resource is the same as the first information associated with the second information associated with the second control resource, or - The first information associated with the second information associated with the first control resource is the same as the first information associated with the second information associated with the control resource associated with the data resource or RS resource, and the control resource comprises at least one of the following: a CORESET that schedules the data resource or RS resource, or a default CORESET for the data resource or RS resource.

[0062] In one embodiment, the TCI state applicable to the first control resource or the second control resource is: -Includes a TCI state activated by the MAC-CE of the first or second control resource.

[0063] In one embodiment, the TCI states applicable to the data resource include at least one of the following: - The TCI status indicated by the DCI of the data resource, or - The default TCI state of the data resource.

[0064] In one embodiment, the TCI states applicable to the RS resource include at least one of the following: -TCI state configured by RRC signaling of RS resources, - The default TCI state for RS resources.

[0065] In one embodiment, the QCL RS includes at least one of the following: - An SSB or CSI-RS with a TCI state applicable to the first control resource, second control resource, data resource, or RS resource. -SSB identified during the initial access procedure, - During a random access procedure initiated by a reconfiguration using a synchronous procedure, the UE identified an SSB or CSI-RS, or - SSB identified by the UE during the most recent random access procedure not initiated by a PDCCH sequence that triggers a non-conflicting random access procedure.

[0066] In one embodiment, the statement "the first information associated with the first control resource is the same as the first information associated with the second control resource" includes at least one of the following: -The first information associated with the second information associated with the first control resource is the same as the first information associated with the second information associated with the second control resource. In other words, the first information is associated with the second information, or - The first information associated with the third information associated with the QCL RS associated with the first control resource is the same as the first information associated with the third information associated with the QCL RS associated with the second control resource, and the third information comprises at least one of a random access channel (RACH) opportunity and / or a preamble.

[0067] In one embodiment, the UE determines first information during an initial access procedure or a random access procedure to identify the QCL-RS.

[0068] In one embodiment, "the second information associated with the first control resource is the same as the second information associated with the data resource or RS resource." - The second information associated with the first control resource is the same as the second information associated with the CORESET associated with the data resource or RS resource, and the CORESET includes at least one of the default CORESET for the data resource or RS resource and the CORESET that schedules the data resource or RS resource.

[0069] In one embodiment, "the first information associated with the first control resource is the same as the first information associated with the data resource or RS resource" means - The first information associated with the second information associated with the first control resource is the same as the first information associated with the second information associated with the CORESET associated with the data resource or RS resource, and the CORESET includes at least one of the default CORESET for the data resource or RS resource and the CORESET that schedules the data resource or RS resource.

[0070] In one embodiment, the first control resource includes CORESET. In one embodiment, the data resource includes a PDSCH resource.

[0071] In one embodiment, the RS resource includes a CSI-RS resource. In one embodiment, the time domain type of the CSI-RS resource includes aperiodicity. That is, the RS resource includes aperiodic CSI-RS resources.

[0072] For illustrative purposes, a method for resolving collisions is illustrated by the following embodiments. Figure 5 shows a schematic diagram of a UE having two panels communicating with two TRPs according to one embodiment of the present disclosure. As shown in Figure 5, in CC-0, at a given time, PDCCH-1 (or CORESET-1) transmitted from TRP-0 and PDSCH-2 transmitted from TRP-1 overlap. In this embodiment, the gNB activates a TCI state (corresponding to the vertical striped beams in the figure) for CORESET-1, and this TCI state is associated with a panel index having a value of 1. Specifically, the panel index may consist of a TCI state. Furthermore, the gNB indicates a TCI state for PDSCH-2, and this TCI state is associated with a panel index having a value of 1. In this embodiment, the offset between the reception of the DL DCI (or PDCCH) corresponding to PDSCH-2 and PDSCH-2 is smaller than a configured threshold. Therefore, the UE may not be able to receive the indicated TCI state of PDSCH-2 (i.e., the beam with the grid pattern in the figure) and may apply the default beam (i.e., the beam without a pattern) to PDSCH-2. Note that the default beam is determined according to the default TCI state (i.e., the TCI state applicable to the default CORESET (e.g., CORESET-0)). In this embodiment, the default TCI state is associated with a panel index having a value of 1. In other words, the panel index associated with the TCI state associated with CORESET-1 is the same as the panel index associated with the default TCI state associated with PDSCH-2. Therefore, the striped beam and the beam without a pattern also collide. In such a case, the UE is expected to prioritize receiving PDSCH-1 using the striped beam by panel-1. In one embodiment, the panel index may be replaced with a set index.

[0073] Figure 6 shows a schematic diagram of a UE having two panels communicating with two TRPs according to one embodiment of the present disclosure. As shown in Figure 6, CC-0 has two sets provided by RRC signaling, MAC-CE and / or DCI (i.e., a first set and a second set), each of the first and second sets consisting of a plurality of TCI states (circles shown in Figure 6). Furthermore, the first and second sets are associated with panel-0 and panel-1 of the UE, respectively. At a given time, PDCCH-1 (or CORESET-1) transmitted from TRP-0 and PDSCH-2 transmitted from TRP-1 overlap. In this embodiment, gNB activates a TCI state (corresponding to a vertical striped beam) for CORESET-1, and this activated TCI state belongs to the second set. Furthermore, gNB indicates another TCI state for PDSCH-2, and the indicated TCI state also belongs to the second set. Furthermore, the offset between the reception of DL DCI (or PDCCH) corresponding to PDSCH-2 and PDSCH-2 is smaller than the configured threshold. Under such conditions, the UE cannot receive the indicated TCI state of PDSCH-2 (i.e., the beam with the grid pattern in the figure) and must apply the default beam (i.e., the beam without a pattern in the figure) to PDSCH-2, and the default beam is determined according to the default TCI state (i.e., the TCI state applicable to the default CORESET (e.g., CORESET-0)). In Figure 6, the default TCI state also belongs to the second set. In other words, the set associated with the TCI state associated with CORESET-1 is the same as the set associated with the default TCI state associated with PDSCH-2. Thus, the striped beam and the beam without a pattern collide. In such a case, the UE is expected to prioritize receiving PDCCH-1 using the striped beam.

[0074] Figure 7 shows a schematic diagram of a UE having two panels communicating with two TRPs according to one embodiment of the present disclosure. As shown in Figure 7, CC-0 has two CORESET groups, CORESETPoolIndex=0 and CORESETPoolIndex=1, and both CORESET groups are associated with a panel index having a value of 1. At a given time, PDCCH-1 (or CORESET-1) transmitted from TRP-0 and PDSCH-2 transmitted from TRP-1 overlap. In this embodiment, CORESET-1 is associated with CORESETPoolIndex=0, and the PDCCH that schedules PDSCH-2 is associated with CORESETPoolIndex=1. Furthermore, the offset between the reception of the DL DCI (or PDCCH) corresponding to PDSCH-2 and PDSCH-2 is smaller than a configured threshold. Therefore, the UE cannot receive the indicated TCI state of PDSCH-2 (i.e., the beam with the grid pattern in the figure) and must apply the default beam (i.e., the beam without the pattern in the figure) to PDSCH-2. In this embodiment, the default beam is determined according to the default TCI state (i.e., the TCI state applicable to the default CORESET (e.g., CORESET-0)), and CORESET-0 is associated with CORESETPoolIndex=1. Under such conditions, the panel index associated with CORESETPoolIndex associated with CORESET-1 is the same as the panel index associated with CORESETPoolIndex associated with the default CORESET or the panel index associated with the scheduling CORESET associated with PDSCH-2. Thus, the striped beam and the unpatterned beam will collide. In such a case, the UE is expected to prioritize receiving PDCCH-1 using the striped beam. Furthermore, in the case of a collision in CA, CORESETPoolIndex may be replaced by a CC index or CC group in this embodiment.

[0075] Figure 8 shows a schematic diagram of a UE having two panels communicating with two TRPs according to one embodiment of the present disclosure. As shown in Figure 8, in CC-0, at a given time, PDCCH-1 (or CORESET-1) transmitted from TRP-0 and PDCCH-2 (or CORESET-2) transmitted from TRP-1 overlap. In this embodiment, the gNB activates only TCI states (corresponding to vertical stripe beams) for CORESET-1, and the activated TCI states are associated with panel indices having a value of 1. Specifically, the activated panel indices may consist of the corresponding TCI states. In this embodiment, the UE is not provided with activated TCI states for CORESET-2 by the gNB, and the UE determines the beam of CORESET-2 according to the SSB identified by the UE during the most recent random access procedure (i.e., the random access procedure closest to CORESET-2). In one embodiment, the SSB may be the QCL-TypeD-RS of CORESET-2. In this embodiment, the SSB beam (e.g., the grid pattern beam) is associated with a panel index having a value of 1. That is, the panel index associated with the TCI state associated with CORESET-1 is the same as the panel index associated with the SSB associated with CORESET-2. Therefore, the vertical stripe beam and the grid pattern beam collide. In such a case, the UE is expected to prioritize receiving PDCCH-1 using the vertical stripe beam. In one embodiment, since the SSB is associated with the RACH opportunity and / or preamble, the RACH and / or preamble may also be associated with the same panel index.

[0076] Figure 9 shows a flowchart of a process according to one embodiment of the present disclosure. The process shown in Figure 9 can be used in a wireless terminal (e.g., UE) and comprises the following steps.

[0077] Step 900: A step in which the reception of a first resource is prioritized when at least one event occurs, wherein the first resource and the second resource overlap by at least one time unit.

[0078] In the process shown in Figure 9, if the first resource and the second resource overlap in at least one time unit, the wireless terminal prioritizes receiving the first resource when at least one event occurs.

[0079] In one embodiment, prioritizing the reception of a first resource means receiving only the first resource and / or not receiving the second resource (e.g., including).

[0080] In one embodiment, at least one event is: The second resource is not composed of TCI states. The second resource consists of multiple TCI states, and the activation command does not indicate one of the multiple TCI states. The offset between the PDCCH that schedules the second resource and the second resource is less than the threshold. The second resource does not overlap with at least one of the data resource or RS resource, and the data resource or RS resource is shown to have a TCI state. The first piece of information associated with the first resource is the same as the first piece of information associated with the second resource, or The system comprises at least one of the following: the second information associated with the first resource is the same as the second information associated with the second resource.

[0081] In one embodiment, the first information comprises at least one of a panel index or a set.

[0082] In one embodiment, the second information comprises at least one of a control resource set (CORESET) group, a CC, or a CC group.

[0083] In one embodiment, the first information associated with the first resource comprises first information associated with a TCI state applicable to the first resource.

[0084] In one embodiment, the first information associated with the second resource comprises the first information associated with the TCI state applicable to the second resource.

[0085] In one embodiment, the TCI state applicable to the first resource includes the TCI state activated by the MAC-CE of the first resource.

[0086] In one embodiment, the TCI state applicable to the second resource includes at least one of the following: a TCI state activated by the MAC-CE of the second resource, a TCI state indicated by the DCI of the second resource, the default TCI of the second resource, or a TCI state configured by the RRC signaling of the second resource.

[0087] In one embodiment, the first information associated with the first resource comprises the first information associated with the QCL RS applicable to the first resource.

[0088] In one embodiment, the first information associated with the second resource comprises the first information associated with the QCL RS applicable to the second resource.

[0089] In one embodiment, the QCL RS applicable to the first resource is: SSB or CSI-RS in TCI state applicable to the first resource, The SSB identified in the initial access procedure for the first resource, In a random access procedure initiated by a reconfiguration using a synchronization procedure, the SSB or CSI-RS identified for the first resource, or The most recent random access procedure, not initiated by a PDCCH sequence that triggers a non-conflicting random access procedure, comprises at least one of the SSBs identified for a first resource.

[0090] In one embodiment, the QCL RS applicable to the second resource is: SSB or CSI-RS in the TCI state applicable to the second resource, The SSB identified in the initial access procedure for the second resource, In a random access procedure initiated by a reconfiguration using a synchronous procedure, the SSB or CSI-RS identified for the second resource, or The most recent random access procedure, not initiated by a PDCCH sequence that triggers a non-conflicting random access procedure, comprises at least one of the SSBs identified for a second resource.

[0091] In one embodiment, the first information associated with the first resource comprises the first information associated with the second information associated with the first resource.

[0092] In one embodiment, the first information associated with the second resource comprises the first information associated with the second information associated with the second resource.

[0093] In one embodiment, the first information associated with the first resource comprises the first information associated with the third information associated with the QCL RS associated with the first resource.

[0094] In one embodiment, the first information associated with the second resource comprises the first information associated with the third information associated with the QCL RS associated with the second resource.

[0095] In one embodiment, the third information comprises at least one of a random access channel (RACH) opportunity or a preamble.

[0096] In one embodiment, the second information associated with the second resource includes at least one of the following: the second information associated with the CORESET associated with the second resource, the CORESET that schedules the second resource, or the second information associated with the default CORESET of the second resource.

[0097] In one embodiment, the first information associated with the first resource comprises the first information associated with the second information associated with the first resource.

[0098] In one embodiment, the first information associated with the second resource comprises the first information associated with the second information associated with the CORESET associated with the second resource.

[0099] In one embodiment, the CORESET associated with the second resource comprises at least one of the default CORESET for the second resource or a CORESET that schedules the second resource.

[0100] In one embodiment, the first information is determined according to at least one of an initial procedure or a random access procedure for identifying the QCL RS.

[0101] In one embodiment, the first resource comprises at least one of a control resource, a CORESET, or a PDCCH.

[0102] In one embodiment, the second resource comprises at least one of the following: a control resource, a CORESET, a PDCCH, a data resource, a PDSCH, an RS resource, an RS, a CSI-RS resource, or a CSI-RS.

[0103] While various embodiments of this disclosure have been described above, it should be understood that they are presented only as examples and not as limitations. Similarly, various figures may illustrate exemplary architectures or configurations provided to enable those skilled in the art to understand the exemplary features and functions of this disclosure. However, such those skilled in the art will understand that this disclosure is not limited to the illustrated exemplary architectures or configurations and can be implemented using various alternative architectures and configurations. Furthermore, as will be understood by those skilled in the art, one or more features of one embodiment can be combined with one or more features of another embodiment described herein. Therefore, the breadth and scope of this disclosure should not be limited by any of the exemplary embodiments described above.

[0104] Furthermore, it should be understood that any reference to elements in this specification using designations such as "first," "second," etc., does not generally limit the quantity or order of those elements. Rather, these names can be used in this specification as a convenient means of distinguishing two or more elements or examples of elements. Thus, references to first and second elements do not mean that only two elements can be used, or that the first element must in some way precede the second element.

[0105] Furthermore, those skilled in the art will understand that information and signals can be represented using any of the various different technologies and techniques. For example, data, instructions, commands, information, signals, bits, and symbols that can be referred to throughout the above description can be represented by voltage, electric current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0106] Those skilled in the art will further understand that any of the various exemplary logic blocks, units, processors, means, circuits, methods, and functions described in relation to the embodiments disclosed herein can be implemented by electronic hardware (e.g., digital implementations, analog implementations, or a combination of both), firmware, various forms of programs or design code incorporating instructions (which may be referred to herein as “software” or “software units” for convenience), or any combination thereof.

[0107] To clearly demonstrate this compatibility with hardware, firmware, and software, various exemplary components, blocks, units, circuits, and steps are generally described above in relation to their functions. Whether such functions are implemented as hardware, firmware, software, or a combination thereof depends on the specific application and the design constraints imposed on the overall system. A person skilled in the art can implement the described functions in various ways for each specific application, but such implementation decisions should not be construed as departing from the scope of this disclosure. According to various embodiments, processors, devices, components, circuits, structures, machines, units, etc., can be configured to perform one or more of the functions described herein. The terms “configured for” or “configured to” as used herein in relation to a specified operation or function refer to processors, devices, components, circuits, structures, machines, units, etc., that are physically constructed, programmed and / or positioned to perform the specified operation or function.

[0108] Furthermore, those skilled in the art will understand that various exemplary logic blocks, units, devices, components, and circuits described herein can be implemented in, or performed by, an integrated circuit (IC) which may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic device, or any combination thereof. Logic blocks, units, and circuits may further include antennas and / or transceivers for communicating with various components within a network or device. While a general-purpose processor may be a microprocessor, in alternative examples, the processor may be any conventional processor, controller, or state machine. The processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors working with a DSP core, or any other suitable configuration for performing the functions described herein. When implemented in software, the functions may be stored as one or more instructions or codes on a computer-readable medium. Thus, steps of the methods or algorithms disclosed herein may be performed as software stored on a computer-readable medium.

[0109] Computer-readable media include both computer storage media and communication media, which include any media that can enable the transfer of computer programs or code from one location to another. Storage media can be any available media that can be accessed by a computer. Such computer-readable media, but not limited to, include RAM, ROM, EEPROM, CD-ROM, or other optical disk storage devices, magnetic disk storage devices or other magnetic storage devices, or any other media that can be used to store desired program code in the form of instructions or data structures and can be accessed by a computer.

[0110] As used herein, the term “unit” refers to software, firmware, hardware, and any combination thereof for performing the relevant functions described herein. Furthermore, for illustrative purposes, various units are described as individual units, but as will be apparent to those skilled in the art, two or more units can be combined to form a single unit that performs the relevant functions according to embodiments of this disclosure.

[0111] Furthermore, embodiments of this disclosure may include memory or other storage devices, as well as communication components. For clarity, it will be understood that the above description has illustrated embodiments of this disclosure with reference to different functional units and processors. However, it will be clear that any appropriate distribution of functionality between different functional units, processing logic elements, or domains can be used without prejudice to this disclosure. For example, a function shown to be performed by a separate processing logic element or controller may be performed by the same processing logic element or controller. Thus, references to specific functional units are not intended to indicate a strict logical or physical structure or organization, but merely to refer to appropriate means for providing the described functionality.

[0112] Various modifications to the embodiments described herein will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the scope of this disclosure. Therefore, this disclosure is not intended to be limited to the embodiments shown herein, but should be given the broadest scope consistent with the novel features and principles disclosed herein, as set forth in the following claims.

Claims

1. A wireless communication method used in a wireless terminal, The system includes a step that prioritizes receiving the first resource when at least one event occurs, The first resource and the second resource overlap for at least one time unit, The aforementioned at least one event is, The second resource described above is not configured in a Transmit Configuration Indicator (TCI) state. The second resource is composed of multiple TCI states, and is not indicated by the activation command in one of the multiple TCI states. The first information associated with the first resource is the same as the first information associated with the second resource, or The second information associated with the first resource is the same as the second information associated with the second resource, comprising at least one of the following: The first information comprises at least one of a panel index or set, The second information comprises at least one of a control resource set (CORESET) group, a component carrier (CC), or a CC group. The first information associated with the first resource comprises the first information associated with a TCI state applicable to the first resource, and the first information associated with the second resource comprises the first information associated with a TCI state applicable to the second resource. A wireless communication method wherein the TCI state applicable to the first resource comprises a TCI state activated by the media access control control element (MAC-CE) of the first resource, and the TCI state applicable to the second resource comprises at least one of a TCI state activated by the MAC-CE of the second resource, a TCI state indicated by the downlink control information (DCI) of the second resource, the default TCI of the second resource, or a TCI state configured by the radio resource control (RRC) signaling of the second resource.

2. The step of prioritizing the reception of the first resource is, The step of receiving only the first resource, or The wireless communication method according to claim 1, comprising at least one of the steps of not receiving the second resource.

3. The aforementioned at least one event further, The offset between the physical downlink control channel (PDCCH) that schedules the second resource and the second resource is less than a threshold, or The second resource does not overlap with at least one of the data resource or reference signal (RS) resource, and the data resource or the RS resource is shown to have a TCI state. The wireless communication method according to claim 1 or 2.

4. The first information associated with the first resource further comprises the first information associated with a quasi-collocation (QCL) RS applicable to the first resource, The first information associated with the second resource further comprises the first information associated with a QCL RS applicable to the second resource, Preferably, the QCL RS applicable to the first resource is: A synchronization signal block (SSB) or channel state information reference signal (CSI-RS) in the TCI state applicable to the first resource, The SSB identified in the initial access procedure for the first resource, In a random access procedure initiated by a reconfiguration using a synchronization procedure, the SSB or CSI-RS identified for the first resource, or The wireless communication method according to claim 3, comprising at least one of the SSBs identified for the first resource in the most recent random access procedure not initiated by a PDCCH sequence that triggers a non-conflicting random access procedure.

5. The QCL RS applicable to the second resource is: Synchronization signal block (SSB) or CSI-RS in the TCI state applicable to the second resource, The SSB identified in the initial access procedure for the second resource, In a random access procedure initiated by a reconfiguration using a synchronization procedure, the SSB or CSI-RS identified for the second resource, or The wireless communication method according to claim 4, comprising at least one of the SSBs identified for the second resource in the most recent random access procedure not initiated by a PDCCH sequence that triggers a non-conflicting random access procedure.

6. The first information associated with the first resource further comprises the first information associated with the second information associated with the first resource, The wireless communication method according to claim 3, wherein the first information associated with the second resource further comprises the first information associated with the second information associated with the second resource.

7. The first information associated with the first resource further comprises the first information associated with a third information associated with the QCL RS associated with the first resource, The first information associated with the second resource further comprises the first information associated with the third information associated with the QCL RS associated with the second resource, The wireless communication method according to claim 3, wherein the third information comprises at least one of a random access channel (RACH) opportunity or a preamble.

8. The wireless communication method according to claim 3, wherein the second information associated with the second resource comprises at least one of the following: the second information associated with a CORESET associated with the second resource, a CORESET for scheduling the second resource, or the second information associated with a default CORESET for the second resource.

9. The first information associated with the first resource further comprises the first information associated with the second information associated with the first resource, The first information associated with the second resource further comprises the first information associated with the second information associated with the CORESET associated with the second resource, The wireless communication method according to claim 3, wherein the CORESET associated with the second resource comprises at least one of the default CORESET for the second resource or a CORESET for scheduling the second resource.

10. The wireless communication method according to any one of claims 3 to 9, wherein the first information is determined according to at least one of an initial procedure or a random access procedure for identifying the QCL RS.

11. The wireless communication method according to any one of claims 1 to 10, wherein the first resource comprises at least one of a control resource, a CORESET, or a PDCCH.

12. The wireless communication method according to any one of claims 1 to 11, wherein the second resource comprises at least one of a control resource, CORESET, PDCCH, data resource, physical shared channel (PDSCH), RS resource, RS, CSI-RS resource, or CSI-RS.

13. A wireless terminal, A processor configured to prioritize receiving a first resource when at least one event occurs, The first resource and the second resource overlap for at least one time unit, The aforementioned at least one event is, The second resource described above is not configured in a Transmit Configuration Indicator (TCI) state. The second resource is composed of multiple TCI states, and is not indicated by the activation command in one of the multiple TCI states. The first information associated with the first resource is the same as the first information associated with the second resource, or The second information associated with the first resource is the same as the second information associated with the second resource, comprising at least one of the following: The first information comprises at least one of a panel index or set, The second information comprises at least one of a control resource set (CORESET) group, a component carrier (CC), or a CC group. The first information associated with the first resource comprises the first information associated with a TCI state applicable to the first resource, and the first information associated with the second resource comprises the first information associated with a TCI state applicable to the second resource. A wireless terminal wherein the TCI state applicable to the first resource comprises a TCI state activated by the media access control control element (MAC-CE) of the first resource, and the TCI state applicable to the second resource comprises at least one of a TCI state activated by the MAC-CE of the second resource, a TCI state indicated by the downlink control information (DCI) of the second resource, the default TCI of the second resource, or a TCI state configured by the radio resource control (RRC) signaling of the second resource.

14. A computer program comprising a stored computer-readable program medium code, wherein, when executed by a processor, the code causes the processor to perform the wireless communication method described in any one of claims 1 to 12.

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