Method for resource signaling design and configuration

Abstract

A wireless communication method for use in a wireless terminal is disclosed. The wireless communication method includes: when at least one event occurs, preferentially receiving a first resource, wherein the first resource and a second resource overlap within at least one time unit.

Description

Technical Field

[0001] This document relates generally to wireless communications. Background Art

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

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

[0004] The present disclosure relates to a wireless communication method for a wireless terminal. The wireless communication method comprises:

[0005] When at least one event occurs, the first resource is received first.

[0006] The first resource and the second resource overlap in at least one time unit.

[0007] Various embodiments may preferably achieve the following features:

[0008] Preferably, the prioritizing receiving the first resource includes at least one of the following:

[0009] receiving only the first resource, or

[0010] The second resource is not received.

[0011] Preferably, the at least one event includes at least one of the following:

[0012] The second resource is not configured with a transmission configuration indication TCI state;

[0013] The second resource is configured with a plurality of TCI states and does not indicate one of the plurality of TCI states through an activation command;

[0014] An offset between a physical downlink control channel PDCCH for scheduling the second resource and the second resource is less than a threshold;

[0015] The second resource does not overlap with at least one of a data resource or a reference signal (RS) resource, wherein the data resource or the RS resource is indicated to have a TCI state;

[0016] The first information associated with the first resource is the same as the first information associated with the second resource; or

[0017] The second information associated with the first resource is the same as the second information associated with the second resource.

[0018] Preferably, the first information includes at least one of a panel index or a set.

[0019] Preferably, the second information includes at least one of a control resource set CORESET group, a component carrier CC or a CC group.

[0020] Preferably, the first information associated with the first resource comprises first information associated with a TCI state applicable to the first resource.

[0021] Preferably, the first information associated with the second resource comprises first information associated with a TCI state applicable to the second resource.

[0022] Preferably, the TCI state applicable to the first resource comprises a TCI state for the first resource activated by a media access control element MAC-CE.

[0023] Preferably, the TCI state applicable to the second resource includes at least one of the following: the TCI state for the second resource activated by MAC-CE, the TCI state for the second resource indicated by downlink control information DCI, the default TCI for the second resource, or the TCI state for the second resource configured by radio resource control RRC signaling.

[0024] Preferably, the first information associated with the first resource includes first information associated with a quasi co-located QCL RS applicable to the first resource.

[0025] Preferably, the first information associated with the second resource includes first information associated with a QCL RS applicable to the second resource.

[0026] Preferably, the QCL RS applicable to the first resource includes at least one of the following:

[0027] A synchronization signal block SSB or a channel state information reference signal CSI-RS in the TCI state applicable to the first resource;

[0028] an SSB for the first resource identified during an initial access procedure;

[0029] an SSB or a CSI-RS for the first resource identified in a random access procedure initiated by reconfiguration using a synchronization procedure; or

[0030] An SSB for the first resource identified in a most recent random access procedure, wherein the most recent random access procedure is not initiated by a PDCCH command triggering a contention-free random access procedure.

[0031] Preferably, the QCL RS applicable to the second resource includes at least one of the following:

[0032] a synchronization signal block (SSB) or a CSI-RS in a TCI state applicable to the second resource;

[0033] an SSB for the second resource identified during an initial access procedure;

[0034] an SSB or a CSI-RS for the second resource identified in a random access procedure initiated by reconfiguration using a synchronization procedure; or

[0035] The SSB for the second resource is identified in a most recent random access procedure, and the most recent random access procedure is not initiated by a PDCCH order triggering a contention-free random access procedure.

[0036] Preferably, the first information associated with the first resource includes the first information associated with the second information associated with the first resource.

[0037] Preferably, the first information associated with the second resource includes the first information associated with the second information, and the second information is associated with the second resource.

[0038] Preferably, the first information associated with the first resource includes the first information associated with third information, and the third information is associated with the QCL RS associated with the first resource.

[0039] Preferably, the first information associated with the second resource includes the first information associated with the third information, and the third information is associated with the QCL RS associated with the second resource.

[0040] Preferably, the third information includes at least one of a random access channel RACH opportunity or a preamble code.

[0041] Preferably, the second information associated with the second resource comprises at least one of: the second information associated with a CORESET associated with the second resource; a CORESET that schedules the second resource; or the second information associated with a default CORESET of the second resource.

[0042] Preferably, the first information associated with the first resource includes the first information associated with the second information associated with the first resource.

[0043] Preferably, the first information associated with the second resource includes the first information associated with the second information, and the second information is associated with the CORESET associated with the second resource.

[0044] Preferably, the CORESET associated with the second resource includes at least one of a default CORESET of the second resource or a CORESET that schedules the second resource.

[0045] 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.

[0046] Preferably, the first resource includes at least one of a control resource, a CORESET or a PDCCH.

[0047] Preferably, the second resource includes at least one of the following: control resources, CORESET, PDCCH, data resources, physical shared channel, PDSCH, RS resources, RS, CSI-RS resources or CSI-RS.

[0048] The present disclosure relates to a wireless terminal, comprising:

[0049] a processor configured to preferentially receive the first resource when at least one event occurs,

[0050] The first resource and the second resource overlap in at least one time unit.

[0051] Various embodiments may preferably achieve the following features:

[0052] Preferably, the processor is configured to execute any wireless communication method in the foregoing methods.

[0053] The present disclosure relates to a computer program product, which includes a computer-readable program medium code stored thereon, which, when executed by a processor, causes the processor to implement a wireless communication method recited in any of the aforementioned methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The exemplary embodiments disclosed herein are intended to provide features that will become apparent by reference to the following description in conjunction with the accompanying drawings. According to various embodiments, exemplary systems, methods, devices, and computer program products are disclosed herein. However, it should be understood that these embodiments are presented by way of example rather than by way of limitation, and it will be apparent to those of ordinary skill in the art who read this disclosure that various modifications may be made to the disclosed embodiments while remaining within the scope of this disclosure.

[0055] Therefore, the present disclosure is not limited to the exemplary embodiments and applications described and shown herein. In addition, the specific order and / or hierarchy of the steps in the method disclosed herein is merely an exemplary manner. Based on design preferences, the specific order or hierarchy of the steps of the disclosed method or process can be rearranged while still within the scope of the present disclosure. Therefore, it will be understood by those of ordinary skill in the art that the methods and techniques disclosed herein present various steps or actions in an exemplary order, and unless otherwise expressly stated, the present disclosure is not limited to the specific order or hierarchy presented.

[0056] The above and other aspects and implementations thereof are described in more detail in the drawings, the description and the claims.

[0057] Figure 1 An example of a schematic diagram of a wireless terminal according to an embodiment of the present disclosure is shown.

[0058] Figure 2 An example of a schematic diagram of a wireless network node according to an embodiment of the present disclosure is shown.

[0059] Figure 3 A schematic diagram of a user equipment with two panels communicating with two component carriers according to an embodiment of the present disclosure is shown.

[0060] Figure 4 A schematic diagram of a user equipment with two panels communicating with two component carriers according to an embodiment of the present disclosure is shown.

[0061] Figure 5 A schematic diagram of a user equipment with two panels in communication with two transmit-receive points according to an embodiment of the present disclosure is shown.

[0062] Figure 6 A schematic diagram of a user equipment with two panels in communication with two transmit-receive points according to an embodiment of the present disclosure is shown.

[0063] Figure 7A schematic diagram of a user equipment with two panels in communication with two transmit-receive points according to an embodiment of the present disclosure is shown.

[0064] Figure 8 A schematic diagram of a user equipment with two panels in communication with two transmit-receive points according to an embodiment of the present disclosure is shown.

[0065] Fig. 9 A flow chart illustrating a process according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0066] Figure 1 A schematic diagram of a wireless terminal 10 according to an embodiment of the present disclosure is provided. The wireless terminal 10 may be a user equipment (UE), a mobile phone, a laptop computer, a tablet computer, an e-book, or a portable computer system, and is not limited thereto. The wireless terminal 10 may include a processor 100 (such as a microprocessor or an 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 identity module (SIM), a read-only memory (ROM), a flash memory, a 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 transmit and receive signals (e.g., messages or data packets) according to the processing results of the processor 100. In an embodiment, the communication unit 120 transmits and receives signals (e.g., messages or data packets) via Figure 1 At least one antenna 122 is shown in the figure for transmitting and receiving signals.

[0067] In an embodiment, the storage unit 110 and the program code 212 may be omitted, and the processor 100 may include a storage unit having stored program code.

[0068] The processor 100 may implement any one of the steps of the exemplary embodiments on the wireless terminal 10 , for example, by executing the program code 112 .

[0069] The communication unit 120 may be a transceiver. Alternatively or additionally, the communication unit 120 may combine a transmitting unit and a receiving unit configured to transmit and receive signals to and from a wireless network node (eg, a base station), respectively.

[0070] Figure 2A schematic diagram of a radio network node 20 according to an embodiment of the present disclosure is provided. The radio network node 20 may be 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 controller, or a radio network controller (RNC), and is not limited herein. In addition, the radio network node 20 may include (execute) at least one network function, such as an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), a policy control function (PCF), an application function (AF), etc. The radio network node 20 may include a processor 200, such as a microprocessor or an ASIC, a storage unit 210, and a communication unit 220. The storage unit 210 may be any data storage device storing a program code 212 accessed and executed by the processor 200. Examples of the storage unit 212 include, but are not limited to, a SIM, a ROM, a flash memory, a RAM, a hard disk, and an optical data storage device. The communication unit 220 may be a transceiver and is used to transmit and receive signals (eg, messages or data packets) according to the processing results of the processor 200. In an example, the communication unit 220 transmits and receives signals (eg, messages or data packets) via Figure 2 At least one antenna 222 is shown in the figure for transmitting and receiving signals.

[0071] In an embodiment, the storage unit 210 and the program code 212 may be omitted. The processor 200 may include a storage unit having stored program code.

[0072] The processor 200 may implement any of the steps described in the exemplary embodiments on the radio network node 20 , for example, by executing the program code 212 .

[0073] The communication unit 220 may be a transceiver. Alternatively or additionally, the communication unit 220 may be a combined transmitting unit and a receiving unit configured to transmit and receive signals to and from a wireless terminal (eg, a user equipment), respectively.

[0074] In the present disclosure, a "panel" is equivalent to an antenna group, an antenna port group, a beam group, a subarray, a UE panel (ie, a panel of a UE), a transmitting entity / unit, or a receiving entity / unit.

[0075] In the present disclosure, the definition of "transmission configuration indication (TCI) state" is equivalent to the quasi-co-location (QCL) state or QCL assumption. Specifically, the "TCI state" includes one or more reference RSs (also referred to as QCL RSs) and their corresponding QCL type parameters, wherein the QCL type parameters include at least one of the following aspects or combinations: Doppler spread, Doppler frequency shift, delay spread, average delay, average gain, and spatial parameters. For example, the QCL type includes "QCL-TypeD", which is used to represent the same or quasi-co-located "spatial parameters" between the target "RS or channel" and one or more reference QCL-TypeD RSs. In other words, the "spatial parameters" can also be called beams.

[0076] Specifically, "QCL" or "QCL assumption" includes at least one of the following aspects or combinations: Doppler spread, Doppler shift, delay spread, average delay, average gain and spatial parameters.

[0077] In the present disclosure, the definition of "control resource set (CORESET) group index" is equivalent to the index of a group including one or more CORESETs, and it can be configured by a high-level configuration (eg, CORESETPoolIndex).

[0078] In this disclosure, the definition of "component carrier (CC)" is equivalent to a bandwidth part (BWP) of a serving cell or CC.

[0079] In the present disclosure, the definition of a "CC group" is equivalent to a group including one or more CCs, and it may be configured by a higher layer configuration (eg, simultaneousTCI-UpdateList-r16, simultaneousTCI-UpdateListSecond-r16).

[0080] In the present disclosure, the definition of "panel" or "panel of a UE" is equivalent to a physical or logical antenna group or antenna panel of a UE.

[0081] In the present disclosure, a "code point" appears in (e.g., has) A bits (where A is a positive integer) in downlink control information (DCI), and each code point corresponds to an activated TCI state. For example, a "code point" may be a TCI code point that appears in DCI with 3 bits, and each TCI code point (e.g., 000, 001, ..., 111) corresponds to an activated TCI state applicable to a DL signal.

[0082] In the present disclosure, for ease of description, "the CORESET with the lowest CORESET-ID among the CORESETs configured with the same CORESET group index as the PDCCH that schedules data resources or RS resources in the latest time slot" may be referred to as "the default CORESET for data resources or RS resources" in which the UE monitors the CORESET within the active BWP of the CC. Further, "the TCI state applicable to the default CORESET for data resources or RS resources" may be referred to as "the default TCI state for data resources or RS resources".

[0083] In the present disclosure, the definition of "CORESET" is equivalent to PDCCH and DCI.

[0084] In the present disclosure, the definition of "PDSCH resource" is equivalent to PDSCH.

[0085] In the present disclosure, the definition of "CSI-RS resource" is equivalent to CSI-RS.

[0086] In the present disclosure, a "time unit" may be a sub-symbol, a symbol, a time slot, a sub-frame, a frame, a monitoring opportunity, or a transmission opportunity.

[0087] In this disclosure, a "symbol" refers to an Orthogonal Frequency Division Multiplexing (OFDM) symbol.

[0088] In the present disclosure, “X is associated with Y” means that X and Y have a direct or indirect relationship. For example, X can be determined according to Y and / or Y can be determined based on X.

[0089] In 5G NR, in order to be able to receive multiple different DL channels (e.g., PDCCH / PDSCH) or RS (e.g., CSI-RS) and / or to be able to simultaneously transmit multiple different uplink (UL) channels (e.g., PUCCHs / PUSCHS) or RS (e.g., SRS) by using different (simulated) beams, supporting multiple panels has gradually become a basic capability of UE. In an embodiment, "panel" refers to a physical antenna panel or antenna group deployed on the UE, and in actual deployment, different panels may face different directions. It should be mentioned that at a given moment, only one receive beam (Rx beam) or transmit beam (Tx beam) is formed in the panel. Therefore, for a UE supporting two panels, the UE can use two different Rx beams to simultaneously receive one of the PDCCH, PDSCH or CSI-RS and the other of the PDCCH, PDSCH or CSI-RS.

[0090] Figure 3A schematic diagram of a UE with 2 panels according to an embodiment of the present disclosure is shown, and the 2 panels communicate with 2 CCs. Specifically, in carrier aggregation (CA), the UE can simultaneously receive PDCCH-1 transmitted from CC-0 and PDSCH-2 transmitted from CC-1 by using a beam with vertical stripes and a beam with a grid pattern, respectively. In an embodiment, a beam with vertical stripes is obtained according to a QCL RS (e.g., QCL-Type D-RS) of a TCI state indicated by a DCI transmitted from CC-0. Similarly, a beam with a grid pattern is obtained according to a QCL-Type D-RS of a TCI state indicated by a DCI transmitted from CC-1. As Figure 3 As shown in , the beam with vertical stripes and the beam with grid pattern are associated with panel-0 and panel-1 of the UE, respectively. In an embodiment, PDSCH-1 and PDSCH-2 may also be transmitted from transmit-receive points (TRPs) TRP-0 and TRP-1, respectively, in the same serving cell.

[0091] Figure 4 A schematic diagram of a UE with 2 panels communicating with 2 CCs according to an embodiment of the present disclosure is shown. In this embodiment, at a given moment, a beam with vertical stripes and a beam with a grid pattern are associated with the same panel (i.e., panel-1), and the UE cannot form two different beams in one panel. Even though this situation can be avoided by strictly controlling the gNB, it is difficult to avoid the situation when two PDCCHs conflict (e.g., completely or partially overlap in at least one symbol) and the CORESET corresponding to one PDCCH is not configured with a TCI state. Under such conditions, the beam of the PDCCH that is not configured with a TCI state needs to follow the synchronization signal block (SSB) identified by the UE during the random / initial access process. In addition, another PDCCH is indicated with a TCI-state. Thus, the two CORESET beams are likely to be associated with the same panel. In this case, the UE cannot normally receive two DL channels or RSs, resulting in a waste of resources and power and a degradation of the communication system performance.

[0092] In an embodiment, for multiple different channels or RS transmitted from different CCs in CA or from different TRPs in a single CC, a control channel (e.g., PDCCH) may conflict with another control channel (e.g., PDCCH), a data channel (e.g., PDSCH), or RS (e.g., CSI-RS). That is, a control channel and another control channel, data channel, or RS channel may overlap in at least one OFDM symbol, and the beams of the conflicting channels or RS are associated with the same panel. In order to clarify the behavior of the UE in the conflict, the present disclosure provides a method for resolving the conflict. In an embodiment, the method includes:

[0093] The UE is expected to preferentially receive the first control resource if (e.g., when) at least one of the following conditions is met:

[0094] - The first control resource and the second control resource, the data resource or the RS resource overlap in at least one symbol. In an embodiment, for convenience, the second control resource or (and) the data resource or (and) the RS resource may be collectively referred to as the second resource. In addition, for convenience, the first control resource may be referred to as the first resource.

[0095] - The UE is not provided with configuration of the TCI state(s) for the second control resource.

[0096] - providing the UE with an initial configuration of more than one TCI states for a second control resource and not receiving a MAC-CE activation command for one of the TCI states.

[0097] -The offset between the PDCCHs of the scheduled data resources or RS resources is less than a threshold. Specifically, the offset refers to one or more time units (e.g., symbols) between the PDCCHs of the scheduled data resources or RS resources. The threshold refers to a threshold determined based on reported UE capabilities (e.g., beam switching time (timeDurationForQCL or beamSwitchTiming), subcarrier space (SCS) of RS resources, and / or beam switching time delay).

[0098] - There are no other data resources or RS resources with the indicated TCI state in the same symbol as the RS resource.

[0099] or

[0100] -The first information associated with the first control resource is the same as the first information associated with the second control resource, the data resource or the RS resource, wherein the first information includes at least one of a panel index, a set and / or a set index. Specifically, the first information may implicitly or explicitly refer to the panel of the UE. For example, the value of the panel index may explicitly indicate the panel of a UE. As an alternative, the panel index may be a group ID, and the group ID implicitly indicates the panel of the UE, and the group ID is included in a group-based channel state information (CSI) report. In an embodiment, the set may be a set of TCI states or RSs configured by a high-level configuration, and each set is associated with the panel of a specific UE. In other words, the set implicitly indicates the panel of a UE. In an embodiment, the set index refers to the index of the set to which the TCI state or RS belongs. In addition, the set index implicitly indicates the panel of a UE. In an embodiment, "a set associated with A" is equivalent to "a set index associated with A".

[0101] - The second information associated with the first control resource is the same as the second information associated with the second control resource, the data resource or the RS resource, wherein the second information comprises at least one of a CORESET group index, a CC index and / or a CC group. In an embodiment, "CORESET group index / CC index / CC group index associated with A" is equivalent to "CORESET group / CC / CC group associated with A".

[0102] In an embodiment, “the first information associated with the first control resource is the same as the first information associated with the second control resource, the data resource, or the RS resource” includes at least one of the following:

[0103] - the first information associated with the TCI state applicable to the first control resource is the same as the first information associated with the TCI state applicable to the second control resource, the data resource or the RS resource;

[0104] - the first information associated with the QCL RS applicable to the first control resource is the same as the first information associated with the QCL RS applicable to the second control resource, data resource or RS resource;

[0105] - 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

[0106] -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, wherein the control resource is associated with a data resource or an RS resource, wherein the control resource includes at least one of: a CORESET for scheduling data resources or RS resources; a default CORESET for data resources or RS resources.

[0107] In an embodiment, the TCI state applicable to the first control resource or the second control resource includes:

[0108] - A TCI state activated by a MAC-CE for the first control resource or the second control resource.

[0109] In an embodiment, the TCI status applicable to the data resource includes at least one of the following:

[0110] - the TCI state for the data resource indicated by the DCI; or

[0111] - The default TCI status of the data resource.

[0112] In an embodiment, the TCI state applicable to the RS resource includes at least one of the following:

[0113] - TCI state for RS resources configured by RRC signaling;

[0114] - The default TCI state of the RS resource.

[0115] In an embodiment, the QCL RS includes at least one of the following:

[0116] -SSB or CSI-RS in TCI state applicable to the first control resource, the second control resource, the data resource or the RS resource.

[0117] - The SSB identified by the UE during the initial access procedure;

[0118] - an SSB or CSI-RS identified by the UE during a random access procedure initiated by reconfiguration using a synchronization procedure; or

[0119] - The SSB identified by the UE in the most recent random access procedure, the most recent random access procedure not being initiated by a PDCCH order triggering a contention-free random access procedure.

[0120] In an embodiment, “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:

[0121] - 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

[0122] -The first information associated with the third information associated with the QCL RS (which is associated with the first control resource) is the same as the first information associated with the third information associated with the QCL RS (which is associated with the second control resource), wherein the third information includes at least one of a random access channel (RACH) opportunity and / or a preamble code.

[0123] In an embodiment, the UE determines the first information in an initial access procedure or a random access procedure for identifying the QCL-RS.

[0124] In an embodiment, “the second information associated with the first control resource is the same as the second information associated with the data resource and the RS resource” includes:

[0125] - The second information associated with the first control resource is the same as the second information associated with a CORESET associated with the data resource or the RS resource, wherein the CORESET includes at least one of a default CORESET for the data resource or the RS resource and a CORESET for scheduling the data resource or the RS resource.

[0126] In an embodiment, “the first information associated with the first control resource is the same as the first information associated with the data resource or the RS resource” includes:

[0127] -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 a CORESET, wherein the CORESET is associated with the data resource or the RS resource, wherein the CORESET includes at least one of a default CORESET for the data resource or the RS resource and a CORESET for scheduling the data resource or the RS resource.

[0128] In an embodiment, the first control resource comprises a CORESET.

[0129] In an embodiment, the data resources include PDSCH resources.

[0130] In an embodiment, the RS resources include CSI-RS resources.

[0131] In an embodiment, the time domain type of the CSI-RS resource includes aperiodic, that is, the RS resource includes an aperiodic CSI-RS resource.

[0132] For illustration, a method for resolving conflicts is illustrated by the following example.

[0133] Figure 5 FIG. 1 shows a schematic diagram of a UE with two panels in communication with two TRPs according to an embodiment of the present disclosure. Figure 5 As shown in , in CC-0, at a given moment, the PDCCH-1 (or CORESET-1) transmitted from TRP-0 and the PDSCH-2 transmitted from TRP-1 overlap. In this embodiment, the gNB activates the TCI state for CORESET-1 (corresponding to the beam with vertical stripes in the figure), and the TCI state is associated with a panel index having a value of 1. Specifically, the panel index can be configured in the TCI state. In addition, the gNB indicates the TCI-state for PDSCH-2, and the 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 the PDSCH-2 is less than the configured threshold. Therefore, the UE cannot receive the indicated TCI state of PDSCH-2 (i.e., the beam with a grid pattern in the figure), and the default beam (i.e., a beam without a pattern) can be applied to the PDSCH-2. Note that the default beam is determined based on 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 is the same as the panel index associated with the default TCI state, which is associated with CORESET-1, and the default TCI state is associated with PDSCH-2. Therefore, beams with vertical stripes and beams without a pattern will also conflict. In this case, the UE is expected to receive PDCCH-1 preferentially by panel-1 by utilizing the beam with vertical stripes. In an embodiment, the panel index can be replaced by a set index.

[0134] Figure 6 FIG. 1 shows a schematic diagram of a UE with two panels in communication with two TRPs according to an embodiment of the present disclosure. Figure 6 As shown in , in CC-0, there are two sets provided by RRC signaling: MAC-CE and / or DCI (ie, a first set and a second set), and each of the first set and the second set consists of multiple TCI states ( Figure 6The first set and the second set are respectively associated with Panel-0 and Panel-1 of the UE. At a given moment, the PDCCH-1 (or CORESET-1) transmitted from TRP-0 and the PDSCH-2 transmitted from TRP-1 overlap. In this embodiment, the gNB activates the TCI state for CORESET-1 (corresponding to the beam with vertical stripes), and the activated TCI state belongs to the second set. In addition, the gNB indicates another TCI-state for PDSCH-2, and the indicated TCI state also belongs to the second set. In addition, the offset between the reception of the DL DCI (or PDCCH) corresponding to PDSCH-2 and the PDSCH-2 is less 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 needs to apply the default beam (i.e., the beam without the pattern in the figure) to the PDSCH-2 and determine the default beam according to the default TCI state (i.e., the TCI state applicable to the default CORESET (e.g., CORESET-0)). Figure 6 In the example, 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. Therefore, the beam with vertical stripes conflicts with the beam without a pattern. In this case, the UE is expected to receive PDCCH-1 preferentially by utilizing the beam with vertical stripes.

[0135] Figure 7 FIG. 1 shows a schematic diagram of a UE with two panels in communication with two TRPs according to an embodiment of the present disclosure. Figure 7As shown in , in CC-0, there are 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 moment, 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 scheduling PDSCH-2 is associated with CORESETPOOLINDEX=1. In addition, the offset between the reception of the DL DCI (or PDCCH) corresponding to PDSCH-2 and the PDSCH-2 is less than the configured threshold. Therefore, the UE cannot receive the indicated TCI state of PDSCH-2 (i.e., the beam with a grid pattern in the figure), and needs to apply the default beam (i.e., the beam without a pattern in the figure) to the PDSCH-2. In this embodiment, the default beam is determined according to the default TCI state, that is, the TCI state applicable to the default CORESET (e.g., CORESET-0), and the CORESET-0 is associated with CORESETPOOLINDEX=1. Under such conditions, the panel index associated with the CORESETPoolIndex associated with CORESET-1 is the same as the panel index associated with the CORESETPoolIndex associated with the default CORESET or the scheduling CORESET associated with PDSCH-2. Therefore, the beam with vertical stripes conflicts with the beam without a pattern. In this case, the UE is expected to preferentially receive PDCCH-1 by utilizing the beam with vertical stripes. In addition, for conflicts in CA, in this embodiment, CORESETPoolIndex can be replaced by a CC index or a CC group.

[0136] Figure 8 FIG. 1 shows a schematic diagram of a UE with two panels in communication with two TRPs according to an embodiment of the present disclosure. Figure 8As shown in , in CC-0, at a given moment, 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 the TCI state for CORESET-1 (corresponding to the beam with vertical stripes), and the activated TCI state is associated with a panel index having a value of 1. Specifically, the activated panel index can be configured in the corresponding TCI state. In this embodiment, the UE is not set with a TCI state activated by the gNB for CORESET-2, and in the most recent random access procedure (i.e., the random access procedure closest to the CORESET-2), the UE determines the beam of the CORESET-2 according to the SSB, and the SSB is identified by the UE. In an embodiment, the SSB can be the QCL-Type D-RS of CORESET-2. Note that in this embodiment, the beam of the SSB (e.g., the beam with a grid pattern) 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 and the panel index associated with the SSB associated with CORESET-2 are the same. Therefore, the beam with vertical stripes and the beam with a grid pattern conflict. In this case, the UE is expected to preferentially receive PDCCH-1 by utilizing the beam with vertical stripes. In an embodiment, since the SSB is associated with a RACH opportunity and / or a preamble, the RACH and / or the preamble may also be associated with the same panel index.

[0137] Fig. 9 A flow chart illustrating a process according to an embodiment of the present disclosure is shown. Fig. 9 The process shown in FIG. 1 may be used in a wireless terminal (eg, UE) and includes the following steps:

[0138] Step 900: When at least one event occurs, preferentially receive a first resource, wherein the first resource and a second resource overlap in at least one time unit.

[0139] exist Fig. 9 In the process shown in FIG. 1 , when a first resource and a second resource overlap within at least one time unit, when at least one event occurs, the wireless terminal preferentially receives the first resource.

[0140] In an embodiment, preferentially receiving the first resource means (eg, includes) receiving only the first resource and / or not receiving the second resource.

[0141] In an embodiment, the at least one event includes at least one of the following:

[0142] The second resource is not configured with a TCI state;

[0143] The second resource is configured with a plurality of TCI states and does not indicate one of the plurality of TCI states through an activation command;

[0144] An offset between a PDCCH for scheduling a second resource and the second resource is less than a threshold;

[0145] The second resource does not overlap with at least one of a data resource or an RS resource, wherein the data resource or the RS resource is indicated to have a TCI state;

[0146] The first information associated with the first resource is the same as the first information associated with the second resource; or

[0147] The second information associated with the first resource is the same as the second information associated with the second resource.

[0148] In an embodiment, the first information includes at least one of a panel index or a set.

[0149] In an embodiment, the second information includes at least one of a control resource set (CORESET) group, a CC, or a CC group.

[0150] In an embodiment, the first information associated with the first resource includes first information associated with a TCI state applicable to the first resource.

[0151] In an embodiment, the first information associated with the second resource includes first information associated with a TCI state applicable to the second resource.

[0152] In an embodiment, the TCI state applicable to the first resource comprises a TCI state for the first resource activated by the MAC-CE.

[0153] In an embodiment, the TCI state applicable to the second resource includes at least one of the following: the TCI state for the second resource activated by MAC-CE, the TCI state for the second resource indicated by DCI, the default TCI for the second resource, or the TCI state for the second resource configured by RRC signaling.

[0154] In an embodiment, the first information associated with the first resource includes first information associated with a QCL RS applicable to the first resource.

[0155] In an embodiment, the first information associated with the second resource includes first information associated with a QCL RS applicable to the second resource.

[0156] In an embodiment, the QCL RS applicable to the first resource includes at least one of the following:

[0157] an SSB or CSI-RS in a TCI state applicable to the first resource;

[0158] an SSB for the first resource identified during an initial access procedure;

[0159] an SSB or a CSI-RS for the first resource identified in a random access procedure initiated by reconfiguration using a synchronization procedure; or

[0160] An SSB for the first resource identified in a most recent random access procedure, wherein the most recent random access procedure is not initiated by a PDCCH command triggering a contention-free random access procedure.

[0161] In an embodiment, the QCL RS applicable to the second resource includes at least one of the following:

[0162] an SSB or CSI-RS in a TCI state applicable to the second resource;

[0163] an SSB for the second resource identified during an initial access procedure;

[0164] an SSB or a CSI-RS for the second resource identified in a random access procedure initiated by reconfiguration using a synchronization procedure; or

[0165] The SSB for the second resource is identified in a most recent random access procedure, and the most recent random access procedure is not initiated by a PDCCH order triggering a contention-free random access procedure.

[0166] In an embodiment, the first information associated with the first resource includes the first information associated with the second information associated with the first resource.

[0167] In an embodiment, the first information associated with the second resource includes first information associated with second information, the second information being associated with the second resource.

[0168] In an embodiment, the first information associated with the first resource includes the first information associated with third information, and the third information is associated with the QCL RS associated with the first resource.

[0169] In an embodiment, the first information associated with the second resource includes the first information associated with the third information, and the third information is associated with the QCL RS associated with the second resource.

[0170] In an embodiment, the third information includes at least one of a random access channel (RACH) opportunity or a preamble.

[0171] In an embodiment, the second information associated with the second resource comprises at least one of: the second information associated with a CORESET associated with the second resource; a CORESET that schedules the second resource; or second information associated with a default CORESET of the second resource.

[0172] In an embodiment, the first information associated with the first resource includes the first information associated with the second information associated with the first resource.

[0173] In an embodiment, the first information associated with the second resource includes the first information associated with the second information, the second information being associated with a CORESET associated with the second resource.

[0174] In an embodiment, the CORESET associated with the second resource comprises at least one of a default CORESET for the second resource or a CORESET that schedules the second resource.

[0175] In an 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.

[0176] In an embodiment, the first resource comprises at least one of a control resource, a CORESET or a PDCCH.

[0177] In an embodiment, the second resource includes at least one of 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.

[0178] Although various embodiments of the present disclosure have been described above, it should be understood that they are presented only as examples and not as limitations. Similarly, various figures may depict exemplary architectures or configurations, which are provided to enable those of ordinary skill in the art to understand the exemplary features and functions of the present disclosure. However, these technicians will understand that the present disclosure is not limited to the example architectures or configurations shown, but can be implemented using various alternative architectures and configurations. In addition, as will be understood by those of ordinary skill in the art, one or more features of an embodiment may be combined with one or more features of another embodiment described herein. Therefore, the breadth and scope of the present disclosure should not be limited by any of the above-described exemplary embodiments.

[0179] It should also be understood that any reference to an element using designations such as "first," "second," etc. herein does not generally limit the number or order of these elements. Rather, these designations may be used herein as a convenient means of distinguishing between two or more elements or multiple instances of an element. Thus, reference to a first and a second element does not mean that only two elements may be used or that the first element must precede the second element in some manner.

[0180] In addition, those skilled in the art will appreciate that any of a variety of different technical means may be used to represent information and signals. For example, data, instructions, commands, information, signals, bits, and symbols that may be referenced in the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, light fields or particles, or any combination thereof.

[0181] Those skilled in the art will further understand that any of the various illustrative logical blocks, units, processors, devices, circuits, methods, and functions described in conjunction with the aspects disclosed herein may be implemented by electronic hardware (e.g., digital implementation, analog implementation, or a combination of both), firmware, various forms of programs or design codes incorporating instructions (for convenience, referred to herein as "software" or "software units"), or any combination of these technologies.

[0182] In order to clearly illustrate this interchangeability of hardware, firmware and software, various illustrative components, blocks, units, circuits and steps have been described above roughly with respect to their functions. Whether such functions are implemented as hardware, firmware or software, or as a combination of these technologies, depends on the specific application and the design constraints imposed on the entire system. Those skilled in the art can implement the described functions in various ways for each specific application, but such implementation decisions will not lead to deviations from the scope of the present disclosure. According to various embodiments, processors, devices, components, circuits, structures, machines, units, etc. may be configured to perform one or more functions described herein. The terms "configured to" or "configured for" used herein with respect to a specified operation or function refer to a processor, device, component, circuit, structure, machine, unit, etc. that is physically constructed, programmed and / or arranged to perform a specified operation or function.

[0183] In addition, it will be understood by those skilled in the art that the various illustrative logic blocks, units, devices, components and circuits described herein may be implemented or performed within 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. The logic blocks, units and circuits may also include antennas and / or transceivers to communicate with various components within a network or within a device. The general-purpose processor may be a microprocessor, but may also be any conventional processor, controller or state machine. The processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a combination of multiple microprocessors, a combination of one or more microprocessors combined with a DSP core, or any other suitable configuration for performing the functions described herein. If implemented in software, these functions may be stored as one or more instructions or codes on a computer-readable medium. Therefore, the steps of the method or algorithm disclosed herein may be implemented as software stored on a computer-readable medium.

[0184] Computer-readable media include computer storage media and communication media, including any media that can transfer a computer program or code from one place to another. Storage media can be any available media that a computer can access. As an example and not limitation, such computer-readable media can 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 the desired program code in the form of instructions or data structures and can be accessed by a computer.

[0185] In this document, the term "unit" as used herein refers to software, firmware, hardware, and any combination of these elements for performing the associated functions described herein. In addition, for the purpose of discussion, various units are described as discrete units; however, as is apparent to one of ordinary skill in the art, according to embodiments of the present disclosure, two or more units may be combined to form a single unit that performs the associated functions.

[0186] In addition, memory or other storage devices and communication components can be used in embodiments of the present disclosure. It should be understood that, for the sake of clarity, the above description describes embodiments of the present disclosure with reference to different functional units and processors. However, it is apparent that any appropriate functional distribution can be applied between different functional units, processing logic elements or domains without departing from the present disclosure. For example, the functions performed by respective processing logic elements or controllers are shown to be performed by the same processing logic element or controller. Therefore, reference to a specific functional unit is merely a reference to an appropriate means for providing the function, rather than representing a strict logical or physical structure or organization.

[0187] Various modifications to the implementations described in this disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other implementations without departing from the scope of this disclosure. Therefore, the present disclosure is not limited to the implementations shown herein, but is to be accorded the broadest scope consistent with the novel features and principles disclosed herein as described in the claims below.

Claims

1. A wireless communication method for use in a wireless terminal, the wireless communication method comprising: When at least one event occurs, the first resource is received first. wherein the first resource and the second resource overlap in at least one time unit; and Wherein, at least one event includes at least one of the following: The second resource is not configured with a transmission configuration indication TCI state; The second resource is configured with a plurality of TCI states and does not indicate one of the plurality of TCI states through an activation command; An offset between a physical downlink control channel PDCCH for scheduling the second resource and the second resource is less than a threshold; The second resource does not overlap with at least one of a data resource or a reference signal (RS) resource, wherein the data resource or the RS resource is indicated to have a TCI state; 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, Wherein, the first information includes at least one of a panel index or a set, and The second information includes at least one of a control resource set CORESET group, a component carrier CC or a CC group.

2. The wireless communication method according to claim 1, wherein: The prioritizing receiving the first resource includes at least one of the following: receiving only the first resource, or The second resource is not received.

3. The wireless communication method according to claim 1, wherein: The first information associated with the first resource includes first information associated with a TCI state applicable to the first resource, and The first information associated with the second resource includes first information associated with a TCI state applicable to the second resource.

4. The wireless communication method according to claim 3, wherein: The TCI state applicable to the first resource comprises a TCI state for the first resource activated by a media access control element MAC-CE, and Among them, the TCI state applicable to the second resource includes at least one of the following: the TCI state for the second resource activated by MAC-CE, the TCI state for the second resource indicated by downlink control information DCI, the default TCI for the second resource, or the TCI state for the second resource configured by radio resource control RRC signaling.

5. The wireless communication method according to claim 1, wherein: The first information associated with the first resource includes first information associated with a quasi-co-located QCL RS applicable to the first resource, and The first information associated with the second resource includes first information associated with a QCL RS applicable to the second resource.

6. The wireless communication method according to claim 5, wherein: The QCL RS applicable to the first resource includes at least one of the following: A synchronization signal block SSB or a channel state information reference signal CSI-RS in the TCI state applicable to the first resource; an SSB for the first resource identified during an initial access procedure; an SSB or a CSI-RS for the first resource identified in a random access procedure initiated by reconfiguration using a synchronization procedure; or An SSB for the first resource identified in a most recent random access procedure, wherein the most recent random access procedure is not initiated by a PDCCH command triggering a contention-free random access procedure.

7. The wireless communication method according to claim 5 or 6, wherein: The QCL RS applicable to the second resource includes at least one of the following: a synchronization signal block (SSB) or a CSI-RS in a TCI state applicable to the second resource; an SSB for the second resource identified during an initial access procedure; an SSB or a CSI-RS for the second resource identified in a random access procedure initiated by reconfiguration using a synchronization procedure; or The SSB for the second resource is identified in a most recent random access procedure, and the most recent random access procedure is not initiated by a PDCCH order triggering a contention-free random access procedure.

8. The wireless communication method according to claim 1, wherein: The first information associated with the first resource includes the first information associated with the second information, the second information being associated with the first resource, and The first information associated with the second resource includes the first information associated with the second information, and the second information is associated with the second resource.

9. The wireless communication method according to claim 1, wherein: The first information associated with the first resource includes the first information associated with third information, the third information being associated with the QCLRS associated with the first resource, The first information associated with the second resource includes the first information associated with the third information, the third information is associated with the QCL RS associated with the second resource, and The third information includes at least one of a random access channel RACH opportunity or a preamble code.

10. The wireless communication method according to claim 1, wherein: The second information associated with the second resource includes at least one of: the second information associated with a CORESET associated with the second resource; a CORESET that schedules the second resource; or the second information associated with a default CORESET of the second resource.

11. The wireless communication method according to claim 1, wherein: the first information associated with the first resource includes the first information associated with the second information associated with the first resource, wherein the first information associated with the second resource includes the first information associated with the second information, the second information is associated with a CORESET associated with the second resource, and The CORESET associated with the second resource includes at least one of a default CORESET of the second resource or a CORESET that schedules the second resource.

12. The wireless communication method according to any one of claims 5, 6 or 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.

13. The wireless communication method according to any one of claims 1 to 6 and 8 to 11, wherein: The first resource includes at least one of a control resource, a CORESET or a PDCCH.

14. The wireless communication method according to any one of claims 1 to 6 and 8 to 11, wherein: The second resource includes at least one of the following: control resources, CORESET, PDCCH, data resources, physical shared channel, PDSCH, RS resources, RS, CSI-RS resources or CSI-RS.

15. A wireless terminal, comprising: Memory; processor; as well as A computer program stored on a memory and executable on a processor; The processor is configured to implement the wireless communication method according to any one of claims 1 to 14 when executing the computer program.

16. A computer program product comprising a computer readable program medium code stored thereon, which, when executed by a processor, causes the processor to implement the wireless communication method according to any one of claims 1 to 14.

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