Method for reference signal design and configuration
By using a wireless communication method based on the quasi-co-address assumption in wireless terminals, the problem of different beam conflicts on the UE panel in 5G NR is solved, and communication reliability and throughput are improved.
Patent Information
- Application Number
- CN202080093981.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-07-31
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2040-07-31
AI Technical Summary
In 5G NR, when different beams of different DL channels and RS are associated with the same UE panel at the same time, the UE cannot receive these channels and RS at the same time, resulting in a degradation of communication performance.
By using a wireless communication method in a wireless terminal, based on the quasi-co-address of the first signal assumes that a second signal is received from a wireless network node, when at least one event occurs, for example, the offset between the PDCCH and the second signal scheduling the second signal is less than a threshold, or the first signal is indicated with a transmission configuration indication TCI state.
It effectively solves the problem of different beam conflicts on the UE panel, and improves the communication reliability and throughput of UE in high-frequency communication environment.
Smart Images

Figure CN114982184B_ABST
Abstract
Description
Technical Field
[0001] This document generally relates to wireless communication. Background Art
[0002] In 5G NR, beamforming mechanisms are used to improve the robustness of high-frequency communication. Generally, at a given moment, a user equipment (UE) can only use one beam (e.g., a receiving beam, also referred to as an Rx beam) indicated by a gNodeB (gNB) or a network (NW) to receive a downlink (DL) channel or a reference signal (RS) transmitted from the gNB or the NW. To improve communication reliability and throughput, supporting multiple panels has gradually become an inherent feature of the UE, where a panel refers to a physical antenna panel or antenna group deployed on the UE side for receiving / transmitting DL / UL channels or RS, and a panel can only form one beam at a moment.
[0003] Thus, by using multiple panels, the UE can use multiple beams indicated by the gNB or the NW to simultaneously receive multiple DL channels or RS.
[0004] Figure 1a And Figure 1b shows two examples of carrier aggregation, where the UE uses multiple panels to simultaneously receive multiple DL channels or RS.
[0005] For example, as Figure 1a shown in, in carrier aggregation (CA), the UE can simultaneously receive PDSCH-1 transmitted from a carrier component (CC-0) and PDSCH-2 transmitted from CC-1. Specifically, the indicated beam of PDSCH-1 ( Figure 1a the left beam in) is applied to panel-0, and the indicated beam of PDSCH-2 ( Figure 1a the right beam in) is applied to panel-1.
[0006] Furthermore, as Figure 1b shown in, PDSCH-1 and PDSCH-2 can also be transmitted from a transmit receive point (TRP) TRP-0 and TRP-1 in a serving cell (e.g., CC-0), where the TRP refers to a physical antenna group (or panel) to be deployed on the gNB or the NW for transmitting / receiving DL / UL channels or RS.
[0007] However, if different beams of different DL channels and RS are associated with the same UE panel at a given moment, e.g., as Figure 2 shown in, then the indicated beam of PDSCH-1 is applied to panel-1, and the indicated beam of PDSCH-2 is also applied to the panel-1.
[0008] Figure 2 An example is shown in which different beams of different DL channels and different RSs are associated with the same UE panel at a given moment.
[0009] Further, (for example, when the UE does not receive the indicated TCI-state, the UE may use the beam applied to the CORESET with the lowest CORESET-ID to receive PDSCH-2) the default beam of PDSCH-2 is applied to panel-1. Since the panel-1 of the UE cannot form two beams to receive PDSCH-1 and PDSCH-2 simultaneously, the UE cannot clarify its behavior. This is shown in Figure 3 which shows an example of a conflict between two beams.
[0010] This conflict may cause the UE to be unable to receive data normally, thereby affecting communication performance.
[0011] Currently, there is no effective solution to solve such conflicts.
[0012] In view of the above, the antenna group or panel of the UE can only form one beam to receive the DL channel or RS. A UE supporting multiple panels can receive multiple different DL channels and RSs simultaneously.
[0013] However, when different beams of different DL channels and RSs are associated with the same UE panel at one moment, the UE cannot clarify its behavior and cannot receive these DL channels and RSs simultaneously. This conflict causes the UE to be unable to receive data normally, thereby affecting communication performance. Currently, there is no effective solution to solve such conflicts. SUMMARY OF THE INVENTION
[0014] This document relates to methods, systems, and devices for reference signal design and configuration.
[0015] This disclosure relates to a wireless communication method for use in a wireless terminal. The wireless communication method includes: when at least one event occurs, receiving a second signal from the wireless network node based on the quasi-co-location assumption of a first signal, wherein the first signal and the second signal overlap within at least one time unit.
[0016] Various embodiments may preferably implement the following features:
[0017] Preferably, the at least one event includes at least one of the following:
[0018] - The offset between the physical downlink control channel PDCCH scheduling the second signal and the second signal is less than a threshold;
[0019] - The first signal is indicated to have a Transmission Configuration Indicator (TCI) state;
[0020] - The first information associated with the first signal is the same as the first information associated with the second signal; or
[0021] - The second information associated with the first signal is the same as the second information associated with the second signal.
[0022] Preferably, the first information includes at least one of a panel index or a set, and wherein the second information includes at least one of a Control Resource Set (CORESET) group, a Component Carrier (CC), or a CC group.
[0023] Preferably, the panel index is configured in at least one of the following: TCI state, Channel State Information (CSI) report, CORESET, CORESET group, CC, or CC group.
[0024] Preferably, the set includes at least one of a TCI state or a Reference Signal (RS).
[0025] Preferably, the first information associated with the first signal includes the first information associated with the TCI state applicable to the first signal, and the first information associated with the second signal includes the first information associated with the TCI state applicable to the second signal.
[0026] Preferably, the TCI state applicable to the first signal includes the TCI state indicated by the Downlink Control Information (DCI) for the first signal, and the TCI state applicable to the second signal includes at least one of the following: the TCI state indicated by the DCI for the second signal; the TCI state activated by a Medium Access Control - Control Element (MAC-CE) of the default CORESET for the second signal; or the TCI state corresponding to the lowest code point among multiple TCI code points, the multiple code points including the multiple TCI states applicable to the second signal.
[0027] Preferably, wherein the first information associated with the first signal includes the first information associated with an RS applicable to the first signal, and
[0028] Preferably, the first information associated with the second signal includes the first information associated with an RS applicable to the second signal.
[0029] Preferably, the RS applicable to the first signal includes a QCL RS in a TCI state indicated by DCI for the first signal, and the RS applicable to the second signal includes at least one of the following: a QCL RS in a TCI state indicated by DCI for the second signal; a QCL RS in a TCI state activated by a MAC-CE of a default CORESET for the second signal; a QCL RS in a TCI state corresponding to the lowest code point among a plurality of TCI code points, the plurality of TCI code points including a plurality of TCI states applicable to the second signal; or a QCL RS of a default CORESET applicable to the second signal.
[0030] Preferably, the second information associated with the first signal includes second information associated with the CORESET scheduling the first signal, and the second information associated with the second signal includes at least one of second information associated with the CORESET scheduling the second signal or second information associated with the default CORESET of the second signal.
[0031] Preferably, the first information associated with the first signal includes the first information associated with the second information, the second information being associated with the first signal, and wherein the first information associated with the second signal includes the first information associated with the second information, the second information being associated with the second signal.
[0032] Preferably, the first information associated with the second information associated with the first signal includes the first information associated with the second information, the second information being associated with the CORESET scheduling the first signal, and the first information associated with the second information associated with the second signal includes at least one of the first information associated with the second information associated with the CORESET scheduling the second signal or the first information associated with the second information associated with the default CORESET of the second signal.
[0033] Preferably, one of the first signal or the second signal includes at least one of PDCCH, physical downlink shared channel PDSCH, CSI-RS, or aperiodic CSI-RS.
[0034] The present disclosure also relates to a wireless communication method for use in a wireless terminal, the wireless communication method including: receiving a second signal from a radio network node based on a transmission configuration indication (TCI) state associated with a first signal when at least one event occurs, wherein the first signal and the second signal overlap within at least one time unit.
[0035] Various embodiments may preferably implement the following features:
[0036] Preferably, the at least one event includes at least one of the following:
[0037] - The offset between the physical downlink control channel PDCCH scheduling the second signal and the second signal is less than a threshold;
[0038] - The first signal is indicated to have a transmission configuration indication TCI state;
[0039] - The first information associated with the first signal and the first information associated with the second signal are the same; or
[0040] - The second information associated with the first signal and the second information associated with the second signal are the same.
[0041] Preferably, the first information includes at least one of a panel index or a set, and wherein the second information includes at least one of a control resource set CORESET group, a component carrier CC, or a CC group.
[0042] Preferably, the panel index is configured in at least one of the following: TCI state, channel state information CSI report, CORESET, CORESET group, CC, or CC group.
[0043] Preferably, the set includes at least one of a TCI state or a reference signal RS.
[0044] Preferably, the first information associated with the first signal includes the first information associated with the TCI state applicable to the first signal, and the first information associated with the second signal includes the first information associated with the TCI state applicable to the second signal.
[0045] Preferably, the TCI state applicable to the first signal includes the TCI state indicated by the downlink control information DCI for the first signal, and the TCI state applicable to the second signal includes at least one of the following: the TCI state indicated by the DCI for the second signal; the TCI state activated by the media access control - control element MAC-CE of the default CORESET for the second signal; or the TCI state corresponding to the lowest code point among multiple TCI code points, the multiple code points including multiple TCI states applicable to the second signal.
[0046] Preferably, wherein the first information associated with the first signal includes the first information associated with the RS applicable to the first signal, and
[0047] Preferably, the first information associated with the second signal includes first information associated with the RS applicable to the second signal.
[0048] Preferably, the RS applicable to the first signal includes a QCL RS in a TCI state indicated by DCI for the first signal, and the RS applicable to the second signal includes at least one of the following: a QCL RS in a TCI state indicated by DCI for the second signal; a QCL RS in a TCI state activated by a MAC-CE of a default CORESET for the second signal; a QCL RS in a TCI state corresponding to the lowest code point among a plurality of TCI code points, the plurality of TCI code points including a plurality of TCI states applicable to the second signal; or a QCL RS of a default CORESET applicable to the second signal.
[0049] Preferably, the second information associated with the first signal includes second information associated with the CORESET scheduling the first signal, and the second information associated with the second signal includes at least one of second information associated with the CORESET scheduling the second signal or second information associated with the default CORESET of the second signal.
[0050] Preferably, the first information associated with the first signal includes the first information associated with the second information, the second information being associated with the first signal, and wherein the first information associated with the second signal includes the first information associated with the second information, the second information being associated with the second signal.
[0051] Preferably, the first information associated with the second information associated with the first signal includes the first information associated with the second information, the second information being associated with the CORESET scheduling the first signal, and the first information associated with the second information associated with the second signal includes at least one of the first information associated with the second information associated with the CORESET scheduling the second signal or the first information associated with the second information associated with the default CORESET of the second signal.
[0052] Preferably, the TCI state associated with the first signal includes that the first information associated with the TCI state is different from the first information associated with the first signal.
[0053] Preferably, the first information associated with the TCI state is different from the first information associated with the first signal, including that the first information associated with the TCI state is different from the first information associated with the indicated TCI state, and the indicated TCI state is applicable to the first signal.
[0054] Preferably, the set of TCI states and configurations associated with the first signal is related, wherein the set of configurations is related to the first information or the second information.
[0055] Preferably, the set of configurations is provided by a control command, wherein the control command includes at least one of radio resource control RRC, signaling, media access control - control element MAC-CE, or DCI.
[0056] Preferably, one of the first signal or the second signal includes at least one of PDCCH, physical downlink shared channel PDSCH, CSI-RS, or aperiodic CSI-RS.
[0057] The present disclosure also relates to a wireless communication method for use in a wireless terminal. The wireless communication method includes: preferentially receiving a first signal when at least one event occurs, wherein the first signal and the second signal overlap within at least one time unit.
[0058] Various embodiments may preferably implement the following features:
[0059] Preferably, the preferentially receiving the first signal includes at least one of the following: only receiving the first signal; or not receiving the second signal.
[0060] Preferably, the at least one event includes at least one of the following:
[0061] - The offset between the physical downlink control channel PDCCH scheduling the second signal and the second signal is less than a threshold;
[0062] - The first signal is indicated to have a transmission configuration indication TCI state;
[0063] - The first information associated with the first signal and the first information associated with the second signal are the same; or
[0064] - The second information associated with the first signal and the second information associated with the second signal are the same.
[0065] Preferably, the first information includes at least one of a panel index or a set, and wherein the second information includes at least one of a control resource set CORESET group, a component carrier CC, or a CC group.
[0066] Preferably, the panel index is configured in at least one of the following: TCI state, channel state information CSI report, CORESET, CORESET group, CC, or CC group.
[0067] Preferably, the set includes at least one of a TCI state or a reference signal RS.
[0068] Preferably, the first information associated with the first signal includes first information associated with a TCI state applicable to the first signal, and the first information associated with the second signal includes first information associated with a TCI state applicable to the second signal.
[0069] Preferably, the TCI state applicable to the first signal includes a TCI state indicated by downlink control information DCI for the first signal, and the TCI state applicable to the second signal includes at least one of the following: a TCI state indicated by DCI for the second signal; a TCI state activated by a media access control - control element MAC - CE of a default CORESET for the second signal; or a TCI state corresponding to the lowest code point among a plurality of TCI code points, the plurality of code points including a plurality of TCI states applicable to the second signal.
[0070] Preferably, wherein the first information associated with the first signal includes first information associated with an RS applicable to the first signal, and
[0071] Preferably, the first information associated with the second signal includes first information associated with an RS applicable to the second signal.
[0072] Preferably, the RS applicable to the first signal includes a QCL RS in a TCI state indicated by DCI for the first signal, and the RS applicable to the second signal includes at least one of the following: a QCL RS in a TCI state indicated by DCI for the second signal; a QCL RS in a TCI state activated by a MAC - CE of a default CORESET for the second signal; a QCL RS in a TCI state corresponding to the lowest code point among a plurality of TCI code points, the plurality of TCI code points including a plurality of TCI states applicable to the second signal; or a QCL RS of a default CORESET applicable to the second signal.
[0073] Preferably, the second information associated with the first signal includes second information associated with the CORESET that schedules the first signal, and the second information associated with the second signal includes at least one of second information associated with the CORESET that schedules the second signal or second information associated with the default CORESET of the second signal.
[0074] Preferably, the first information associated with the first signal includes the first information associated with the second information, the second information being associated with the first signal, and wherein the first information associated with the second signal includes the first information associated with the second information, the second information being associated with the second signal.
[0075] Preferably, the first information associated with the second information associated with the first signal includes the first information associated with the second information, the second information being associated with the CORESET that schedules the first signal, and the first information associated with the second information associated with the second signal includes at least one of the first information associated with the second information associated with the CORESET that schedules the second signal or the first information associated with the second information associated with the default CORESET of the second signal.
[0076] Preferably, one of the first signal or the second signal includes at least one of PDCCH, physical downlink shared channel PDSCH, CSI-RS, or aperiodic CSI-RS.
[0077] The present disclosure relates to a computer program product including computer-readable program media code stored thereon, the code, when executed by a processor, causing the processor to implement the wireless communication method in any of the foregoing methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0078] The embodiments disclosed herein are intended to provide features that will become readily apparent when considered in conjunction with the following description with reference to the accompanying drawings. Exemplary systems, methods, devices, and computer program products are disclosed in accordance with various embodiments. However, it should be understood that these embodiments are presented by way of example and not limitation, and it will be apparent to those of ordinary skill in the art reading this disclosure that various modifications can be made to the disclosed embodiments while remaining within the scope of the present disclosure.
[0079] Accordingly, the present disclosure is not limited to the embodiments and applications described and illustrated herein. Additionally, 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 the steps of the disclosed method or process may be rearranged while still within the scope of the present disclosure. Thus, those of ordinary skill in the art will understand that the methods and techniques disclosed herein present various steps or acts in an example order, and the present disclosure is not limited to the specific order or hierarchy presented unless otherwise expressly stated.
[0080] The above and other aspects and their embodiments are described in more detail in the accompanying drawings, the description, and the claims.
[0081] Figure 1a An example of carrier aggregation is shown, where a UE uses multiple panels to simultaneously receive multiple DL channels or RSs.
[0082] Figure 1b An example of carrier aggregation is shown, where a UE uses multiple panels to simultaneously receive multiple DL channels or RSs that are transmitted from two transmission reception points in a serving cell.
[0083] Figure 2 An example is shown in which different beams of (multiple) different DL channels and (multiple) different RSs are associated with the same UE panel at a given moment.
[0084] Figure 3 An example of a conflict between two beams is shown.
[0085] Figure 4 An example of a schematic diagram of a wireless terminal according to an embodiment of the present disclosure is shown.
[0086] Figure 5 An example of a schematic diagram of a wireless network node according to an embodiment of the present disclosure is shown.
[0087] Figure 6 An example of a UE is shown that receives a TCI-state for PDSCH-1 and a TCI-state for PDSCH-2 at a given moment.
[0088] Figure 7 An example of a UE is shown that receives a TCI-state for PDSCH-1 and a TCI-state for PDSCH-2 at a given moment.
[0089] Figure 8Shows an example of a UE that, at a given moment, receives a TCI-state for PDSCH-1 and a TCI-state for PDSCH-2 using carrier aggregation (CA).
[0090] Figure 9 Shows an example of a UE that, at a given moment, receives a TCI-state for PDSCH-1 and a TCI-state for PDSCH-2 using carrier aggregation (CA).
[0091] Figure 10 Shows an example of a UE that, at a given moment, receives a TCI-state for PDSCH-1 and a TCI-state for PDSCH-2.
[0092] Figure 11 Shows an example of a UE that, at a given moment, receives a TCI-state for PDSCH-1 and a TCI-state for PDSCH-2.
[0093] Figure 12 Shows an example of a UE that, at a given moment, receives a TCI-state for PDSCH-1 and a TCI-state for PDSCH-2.
[0094] Figure 13 Shows a flowchart of a process according to an embodiment.
[0095] Figure 14 Shows a flowchart of a process according to an embodiment.
[0096] Figure 15 Shows a flowchart of a process according to an embodiment. Detailed Description
[0097] 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, where the QCL type parameters include at least one of the following aspects or a combination thereof: Doppler spread, Doppler shift, delay spread, average delay, average gain, and spatial parameters. For example, the QCL type includes "QCL-TypeD", which is used to indicate the same or quasi-common "spatial parameters" between the target "RS or channel" and one or more reference QCL-TypeD RSs. In other words, the "spatial parameter" can also be referred to as a beam.
[0098] In the present disclosure, the term "QCL" or "QCL assumption" includes at least one of the following aspects or a combination thereof: Doppler spread, Doppler shift, delay spread, average delay, average gain, and spatial parameters.
[0099] In the present disclosure, "panel" is equivalent to antenna group, antenna port group, beam group, subarray, UE panel, transmitting entity / unit, or receiving entity / unit.
[0100] In the present disclosure, "time unit" can be sub-symbol, symbol, time slot, sub-frame, frame, monitoring occasion, or transmission occasion.
[0101] In the present disclosure, the definition of "component carrier (CC)" is equivalent to that of a serving cell or a bandwidth part (BWP) of a CC.
[0102] In the present disclosure, the definition of "CC group" is equivalent to a group including one or more CCs, and it can be configured by a higher layer (e.g., simultaneousTCI-UpdateList-r16, simultaneousTCI-UpdateListSecond-r16).
[0103] In the present disclosure, the definition of "CORESET group index" is equivalent to the index of a group including one or more CORESETs, and it can be configured by a higher layer (e.g., CORESETPoolIndex).
[0104] In the present disclosure, the definition of "panel" or "panel of the UE" is equivalent to the physical (or logical) antenna group (or panel) of the UE.
[0105] In the present disclosure, the definition of "threshold" is equivalent to a threshold based on the reported UE capabilities (e.g., beam switching time (timeDurationForQCL or beamSwitchTiming), subcarrier spacing (SCS) of the signal, and / or beam switching timing delay).
[0106] In the present disclosure, a "code point" appears as A (A is a positive integer) bits in the DCI, and each code point corresponds to an active TCI state. For example, a "code point" can be a TCI code point that appears as 3 bits in the DCI, and each TCI code point (e.g., 000, 001,..., 111) corresponds to an active TCI state applicable to DL signals.
[0107] 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 scheduling the second signal in the latest time slot" may be referred to as the "default CORESET of the second signal". In the latest time slot, the UE monitors the CORESET within the active BWP of the CC.
[0108] In the present disclosure, the definition of "CORESET" is equivalent to that of PDCCH or DCI.
[0109] In the present disclosure, a "symbol" refers to an orthogonal frequency division multiplexing (OFDM) symbol.
[0110] In the present disclosure, "A is associated with B" means that A and B have a direct or indirect relationship. This means that A (or B) can be determined based on B (or A).
[0111] In the present disclosure, the definition of "CSI-RS" is equivalent to that of CSI-RS resources.
[0112] Figure 4 Schematic diagram of a wireless terminal 20 according to an embodiment of the present disclosure. The wireless terminal 20 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 20 may include a processor 200 (such as a microprocessor or an application specific integrated circuit (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. Embodiments of the storage unit 212 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 220 may be a transceiver and is used to transmit and receive signals (such as messages or data packets) according to the processing result of the processor 200. In one embodiment, the communication unit 220 transmits and receives signals via Figure 4 at least one antenna 222 shown in.
[0113] In one embodiment, the storage unit 210 and the program code 212 may be omitted, and the processor 200 may include a storage unit with stored program code.
[0114] The processor 200 may implement any one of the steps in the exemplary embodiments on the wireless terminal 20, for example, by executing the program code 212.
[0115] The communication unit 220 may be a transceiver. As an alternative or in addition, the communication unit 220 may combine a transmitting unit and a receiving unit, which are configured to transmit signals to a wireless network node (e.g., a base station) and receive signals from the wireless network node, respectively.
[0116] Figure 5 FIG. is a schematic diagram of a wireless network node 30 according to an embodiment of the present disclosure. The wireless network node 30 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 wireless network node 30 may include (perform) 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 wireless network node 30 may include a processor 300, such as a microprocessor or an ASIC, a storage unit 310, and a communication unit 320. The storage unit 310 may be any data storage device that stores program code 312 accessed and executed by the processor 300. Examples of the storage unit 312 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 320 may be a transceiver and is used to transmit and receive signals (e.g., messages or data packets) according to the processing result of the processor 300. In one example, the communication unit 320 transmits and receives signals via Figure 5 at least one antenna 322 shown.
[0117] In one embodiment, the storage unit 310 and the program code 312 may be omitted. The processor 300 may include a storage unit having stored program code.
[0118] The processor 300 may implement any of the steps described in the exemplary embodiments on the wireless network node 30, for example, by executing the program code 312.
[0119] The communication unit 320 may be a transceiver. As an alternative or in addition, the communication unit 320 may combine a transmitting unit and a receiving unit, which are configured to transmit signals to a wireless terminal (e.g., a user equipment) and receive signals from the wireless terminal, respectively.
[0120] In the following, various embodiments relate to clarifying the behavior of a UE in the following: a conflict where any two DL channels or RSs with different beams overlap in the same symbol(s), in particular, a conflict between a PDSCH or CSI-RS and another PDSCH or CSI-RS, where the different beams are applied to (or associated with) the panel of the same UE. Those skilled in the art should recognize that these embodiments can be implemented individually or in any possible combination.
[0121] In one embodiment, if at least one of the following conditions is met, the UE may apply the QCL assumption of the first signal to the second signal. The conditions include the following:
[0122] - The first signal and the second signal overlap in the same symbol(s);
[0123] - The offset between the PDCCH scheduling the second signal and the second signal is less than a threshold. Specifically, the scheduling offset between the received DL DCI and the corresponding second signal is less than a threshold, where the offset refers to one or more time units (e.g., symbols) between the PDCCH scheduling the second signal and the second signal;
[0124] - There is an indication TCI state applicable to the first signal. Specifically, the UE receives the TCI state or QCL RS applicable to the first signal indicated by the DCI, which means that the offset between the PDCCH scheduling the first signal and the first signal is less than a threshold;
[0125] - The first information associated with the first signal and the first information associated with the second signal are the same, where the first information includes at least one of a panel index, a set, or a set index. Specifically, the first information can be used to implicitly or explicitly indicate the panel of the UE. For example, the value of the panel index can be used to indicate the panel of the UE. The set can be a set of TCI states or RSs configured by higher-layer signaling (e.g., RRC). The set includes one or more TCI states or RSs, and these TCI states or RSs are applied to or associated with the panel of a specific same UE. Different sets are associated with different UE panels. Similar to the set, the set index refers to the index of the set, and the set index is associated with the TCI state or RS. The TCI states or RSs associated with the same set index are applied to or associated with the same UE panel. In one embodiment, "the set associated with A" is equivalent to "the set index associated with A";
[0126] - The second information associated with the first signal is the same as the second information associated with the second signal, where the second information includes at least one of a CORESET group index, a CC, or a CC group. Specifically, similar to the first information, the second information can be used to implicitly indicate the panel of the UE. Herein, "the CC associated with signal A" means the CC where signal A is located. In one embodiment, "the CORESET group index / CC index / CC group index associated with A" is equivalent to "the CORESET group / CC / CC group associated with A".
[0127] In one embodiment, the set can be provided to the UE via a control command, where the control command includes at least one of high-layer configuration (i.e., RRC signaling), MAC-CE, or DCI.
[0128] In one embodiment, "the first information associated with the first signal is the same as the first information associated with the second signal" includes at least one of the following:
[0129] - The first information associated with the TCI state applicable to the first signal (i.e., the TCI state indicated by the DCI for the first signal) is the same as the first information associated with the TCI state applicable to the second signal. Specifically, the panel index can be configured in the TCI state by using high-layer signaling (e.g., RRC). Alternatively, the panel index can be associated with the TCI state or QCL RS by using MAC-CE or DCI. Further, the index can also be a group ID included in a group based on a CSI report, which implies that the group ID is implicitly associated with the panel of the UE.
[0130] Further, the TCI state associated with the second signal includes at least one of the following:
[0131] - The TCI state activated by the MAC-CE of the default CORESET for the second signal;
[0132] - The TCI state corresponding to the lowest code point among the TCI code points that include two different TCI states applicable to the second signal. Specifically, the TCI state is activated by the MAC-CE for the second signal;
[0133] - The first information associated with the QCL RS applicable to the first signal is the same as the first information associated with the QCL RS of the default CORESET applicable to the second signal. Further, the QCL RS applicable to the second signal includes the QCL RS in the above TCI state or the QCL RS applicable to the default CORESET (e.g., the SSB of the UE identified during the random / initial access procedure). Specifically, assume that the QCL-TypeD-RS applicable to the first signal is CSI-RS, and the QCL-TypeD-RS applicable to the default CORESET is SSB. Further, the CSI-RS belongs to the configured CSI-RS set - 1, and the SSB belongs to the configured SSB set - 1, which implies that the two RSs (i.e., the beams of the first signal and the second signal) are associated with the panel of the same UE.
[0134] In one embodiment, "the second information associated with the first signal and the second information associated with the second signal are the same" includes at least one of the following:
[0135] - The second information associated with the CORESET scheduling the first signal is the same as the second information associated with the CORESET scheduling the second signal;
[0136] - The second information associated with the CORESET scheduling the first signal is the same as the second information associated with the default CORESET of the second signal.
[0137] In one embodiment, the first information associated with the second information associated with the CORESET scheduling the first signal is the same as the first information associated with the second information associated with the CORESET scheduling the second signal. In particular, the first information may be a panel index.
[0138] In one embodiment, the first information associated with the second information associated with the CORESET scheduling the first signal is the same as the first information associated with the second information associated with the default CORESET of the second signal. In particular, the first information may be a panel index.
[0139] In one embodiment, the first signal or the second signal includes at least one of PDSCH or CSI-RS.
[0140] In one embodiment, the CSI-RS includes at least aperiodic CSI-RS.
[0141] Embodiment 1
[0142] Figure 6A schematic diagram of a UE according to an embodiment of the present disclosure is shown, where the UE receives a TCI-state for PDSCH-1 and another TCI-state for PDSCH-2 at a given moment.
[0143] In one embodiment, as Figure 6 shown, in CC-0, at a given moment, the gNB indicates the TCI-state for PDSCH-1 (i.e., the first signal) transmitted from TRP-0, and the beam corresponding to the TCI-state (i.e., the upper left / lower left beam) is associated with panel ID = 1. The gNB indicates the TCI-state for PDSCH-2 (i.e., the second signal) transmitted from TRP-1, and the beam corresponding to the TCI-state (i.e., the upper right beam) is associated with panel ID = 1. However, the offset between the reception of the DL DCI (or PDCCH) and the corresponding PDSCH-2 is less than the configured threshold, and thus, the UE may not receive the indicated TCI state (i.e., the lower middle beam) of the PDSCH-2, and therefore, the default beam (i.e., the lower right beam) needs to be applied to the PDSCH-2.
[0144] Furthermore, the default beam is determined according to the TCI state applicable to the CORESET with the lowest CORESET ID, and the TCI state is associated with panel ID = 1. The panel ID associated with the indicated TCI state applicable to PDSCH-1 is the same as the panel ID associated with the default TCI state associated with PDSCH-2. At the same time, PDSCH-1 and PDSCH-2 overlap in the same symbol, which may cause a conflict (i.e., Figure 6 the lower left beam and the lower right beam in conflict), because at a given time instance, only one beam is formed on the panel of the UE to receive the DL signal.
[0145] The conflict can be effectively resolved by using the method provided by the present invention, that is, in this case, the UE can apply the QCL assumption (e.g., the lower left beam) of PDSCH-1 to PDSCH-2.
[0146] For convenience, the lower right beam in the figure is omitted in the following embodiments.
[0147] Embodiment 2
[0148] Figure 7 A schematic diagram of a UE according to an embodiment of the present disclosure is shown, where the UE receives a TCI-state for PDSCH-1 and another TCI-state for PDSCH-2 at a given moment.
[0149] In one embodiment, asFigure 7 As shown in Figure 7 , in CC-0, at a given moment, by using scheduling DL DCI (e.g., PDCCH-1), the gNB indicates the TCI-state for PDSCH-1 (i.e., the first signal) transmitted from TRP-0, and the CORESET group ID (e.g., CORESETPoolIndex) associated with the PDCCH-1 is associated with panel ID = 1. By using scheduling DL DCI (e.g., PDCCH-2), the gNB indicates the TCI state for PDSCH-2 (i.e., the second signal) transmitted from TRP-1, and the CORESET group ID associated with the PDCCH-2 is associated with panel ID = 1. The panel ID associated with the CORESET group ID associated with the scheduling PDCCH corresponding to PDSCH-1 and PDSCH-2 is the same. Meanwhile, the offset between the reception of DL DCI (i.e., PDCCH-2) and the corresponding PDSCH-2 is less than the configured threshold. PDSCH-1 and PDSCH-2 overlap in the same symbol. In this case, the UE can apply the QCL assumption of PDSCH-1 (e.g., upper left / lower left beam) to PDSCH-2.
[0150] Embodiment 3
[0151] Figure 8 A schematic diagram showing a UE according to an embodiment of the present disclosure, the UE receiving the TCI-state for PDSCH-1 and another TCI-state for PDSCH-2 using carrier aggregation (CA) at a given moment.
[0152] In one embodiment, as Figure 8 As shown in Figure 8 , in CA, at a given moment, the gNB indicates the TCI state of PDSCH-1 (i.e., the first signal) transmitted from CC-0, and the CC-0 is associated with panel ID = 1. The gNB indicates the TCI state of PDSCH-2 (i.e., the second signal) transmitted from CC-1, and the CC-1 is associated with panel ID = 1. The panel ID associated with the CC where PDSCH-1 and PDSCH-2 are located is the same. Meanwhile, the offset between the reception of DL DCI and the corresponding PDSCH-2 is less than the configured threshold. PDSCH-1 and PDSCH-2 overlap in the same symbol. In this case, the UE can apply the QCL assumption of PDSCH-1 (e.g., upper left / lower left beam) to PDSCH-2.
[0153] Embodiment 4
[0154] Figure 9A schematic diagram of a UE according to an embodiment of the present disclosure is shown, where the UE receives a TCI-state for PDSCH-1 and another TCI-state for PDSCH-2 at a given moment using carrier aggregation (CA).
[0155] In one embodiment, as Figure 9 shown, in CA, at a given moment, the gNB indicates the TCI state for PDSCH-1 (i.e., the first signal) transmitted from CC-0, where the CC-0 is associated with the first CC group, and the first CC group is associated with panel ID = 1, where CC-1 is associated with the second CC group, and the second CC group is associated with panel ID = 1. The panel ID associated with the CC group associated with the CC where PDSCH-1 and PDSCH-2 are located is the same. At the same time, the offset between the reception of the DL DCI and the corresponding PDSCH-2 is less than the configured threshold. PDSCH-1 and PDSCH-2 overlap in the same symbol. In this case, the UE can apply the QCL assumption of PDSCH-1 (e.g., the upper left / lower left beam) to PDSCH-2.
[0156] Embodiment 5
[0157] Figure 10 A schematic diagram of a UE according to an embodiment of the present disclosure is shown, where the UE receives a TCI-state for PDSCH-1 and another TCI-state for PDSCH-2 at a certain given moment.
[0158] As Figure 10 shown, Figure 10 Reuse the embodiment corresponding to Figure 6 Embodiment 1.
[0159] In one embodiment, as Figure 10 shown, it is assumed that in CC-0, there are two sets provided by RRC signaling, MAC-CE, and / or DCI: the first set and the second set, and each set consists of multiple TCI states.
[0160] Furthermore, the first set and the second set are respectively associated with panel-0 and panel-1. The indicated TCI state applicable to PDSCH-1 comes from the second set. The default TCI state of PDSCH-2 comes from the second set. The set associated with the indicated TCI state applicable to PDSCH-1 is the same as the set associated with the default TCI state associated with PDSCH-2.
[0161] Similar to Embodiment 1, PDSCH-1 and PDSCH-2 overlap in the same symbol, which may cause a conflict (i.e., the upper left / lower beam and the lower right beam conflict) because at a given time instance, only one beam is formed on the UE's panel to receive the DL signal. The conflict can be effectively resolved by using the method provided by the present invention, that is, in this case, the UE can apply the QCL assumption of PDSCH-1 (e.g., the left beam) to PDSCH-2.
[0162] Embodiment 6
[0163] Figure 11 A schematic diagram showing a UE according to an embodiment of the present disclosure, the UE receiving a TCI-state for PDSCH-1 and another TCI-state for PDSCH-2 at a given moment.
[0164] As Figure 11 shown in Figure 11 Reusing Embodiment 1 corresponding to Figure 6
[0165] In one embodiment, as Figure 11 shown in, it is assumed that in CC-0, each configured TCI-state is associated with a set index (this association is shown in Table 1 below). Further, set index = 0 and set index = 1 are associated with panel-0 and panel-1 respectively. The indicated TCI state applicable to PDSCH-1 (i.e., TCI state 2) is associated with set index = 1, and the default TCI state of PDSCH-2 (i.e., TCI-state 5) is associated with set index = 1. Therefore, the set index associated with the indicated TCI state applicable to PDSCH-1 is the same as the set index associated with the default TCI state associated with PDSCH-2.
[0166] TCI Status ID Associated Set Index 0 0 1 0 2 1 3 1 4 0 5 1 6 0 … …
[0167] Table 1
[0168] Similar to Embodiment 1, PDSCH-1 and PDSCH-2 overlap in the same symbol, which may cause a conflict (i.e., the left beam and the right beam conflict) because at a given time instance, only one beam is formed on the UE's panel to receive the DL signal. The conflict can be effectively resolved by using the method provided by this patent, that is, in this case, the UE can apply the QCL assumption of PDSCH-1 (e.g., the left beam) to PDSCH-2.
[0169] In the above embodiments, when a conflict occurs on one panel, the other panel is likely to be in an idle state. Therefore, in order to further effectively improve the utilization rate of the panel, the following configuration can be considered.
[0170] In one embodiment, if the above conditions apply, the UE may determine the QCL assumption of the second signal according to the TCI state associated with the first signal.
[0171] In one embodiment, the TCI state is associated with a set of configurations (e.g., the TCI state is from the set of configurations), where the set of configurations is associated with first information. Further, the set of configurations may include one or more TCI states.
[0172] In one embodiment, the set of configurations may be provided to the UE via a control command, where the control command includes at least one of high-layer configuration (i.e., RRC signaling), MAC-CE, or DCI.
[0173] In one embodiment, the TCI state associated with the first signal includes that the first information associated with the TCI state is different from the first information associated with the first signal.
[0174] In one embodiment, "the first information associated with the TCI state is different from the first information associated with the first signal" includes at least one of the following: the first information associated with the TCI state is different from the first information associated with the TCI state applicable to the indication of the first signal.
[0175] Embodiment 7
[0176] Figure 12 A schematic diagram of a UE according to an embodiment of the present disclosure, where the UE receives a TCI-state for PDSCH-1 and another TCI-state for PDSCH-2 at a given moment.
[0177] As Figure 12 shown in Figure 12 Reuse the embodiment corresponding to Figure 6 Embodiment 1.
[0178] In one embodiment, as Figure 12 shown in, it is assumed that a preconfigured set including two TCI states is provided to the UE: TCI state-1 and TCI state-2, where the TCI state-1 and the TCI state-2 are respectively associated with panel-ID = 0 and panel-ID = 1. Further, the preconfigured set may be configured via RRC signaling, MAC-CE, or DCI. The TCI state corresponding to the lower left beam is TCI state-1, and the lower left beam has a different panel-ID associated with the lower right beam (i.e., PDSCH-1). Therefore, in this case, the UE may determine the beam of PDSCH-2 according to TCI state-1 (i.e., the lower left beam).
[0179] In one embodiment, if the above conditions apply, it is desirable for the UE to preferentially receive the first signal. Specifically, the UE may only receive the first signal and not receive the second signal.
[0180] Figure 13 A flowchart of a process according to an embodiment of the present disclosure is shown. Figure 13 The process shown in can be used in a wireless terminal (e.g., UE) and includes the following steps:
[0181] Step 1300: When at least one event occurs, receive a second signal from a radio network node based on the quasi - co - location assumption of the first signal, where the first signal and the second signal overlap within at least one time unit.
[0182] In Figure 13 In the process shown in, when at least one event occurs, the wireless terminal receives a second signal from a radio network node (e.g., BS) based on the quasi - co - location assumption of the first signal. In this embodiment, the first signal and the second signal overlap within at least one time unit.
[0183] In one embodiment, at least one event includes at least one of the following:
[0184] - The offset between the PDCCH scheduling the second signal and the second signal is less than a threshold,
[0185] - The first signal is indicated to have a TCI state,
[0186] - The first information associated with the first signal is the same as the first information associated with the second signal, or
[0187] - The second information associated with the first signal is the same as the second information associated with the second signal.
[0188] The first information includes at least one of a panel index or a set.
[0189] The second information includes at least one of a CORESET group, a CC, or a CC group.
[0190] In one embodiment, the panel index is configured in at least one of the following: TCI state, CSI report, CORESET, CORESET group, CC, or CC group.
[0191] In one embodiment, the set includes at least one of a TCI state or an RS.
[0192] In one embodiment, the first information associated with the first signal includes the first information associated with the TCI state applicable to the first signal.
[0193] In one embodiment, the first information associated with the second signal includes first information associated with the TCI state applicable to the second signal.
[0194] In one embodiment, the TCI state applicable to the first signal includes the TCI state indicated by the downlink control information DCI for the first signal.
[0195] In one embodiment, the TCI state applicable to the second signal includes at least one of the following: the TCI state indicated by the DCI for the second signal, the TCI state activated by the MAC-CE of the default CORESET for the second signal, or the TCI state corresponding to the lowest code point among a plurality of TCI code points, the plurality of code points including a plurality of TCI states applicable to the second signal.
[0196] In one embodiment, the first information associated with the first signal includes first information associated with the RS applicable to the first signal.
[0197] In one embodiment, the first information associated with the second signal includes first information associated with the RS applicable to the second signal.
[0198] In one embodiment, the RS applicable to the first signal includes the QCL RS in the TCI state indicated by the DCI for the first signal.
[0199] In one embodiment, the RS applicable to the second signal includes at least one of the following: the QCL RS in the TCI state indicated by the DCI for the second signal; the QCL RS in the TCI state activated by the MAC-CE of the default CORESET for the second signal; the QCL RS in the TCI state corresponding to the lowest code point among a plurality of TCI code points, the plurality of TCI code points including a plurality of TCI states applicable to the second signal; or the QCL RS of the default CORESET applicable to the second signal.
[0200] In one embodiment, the second information associated with the first signal includes second information associated with the CORESET scheduling the first signal.
[0201] In one embodiment, the second information associated with the second signal includes at least one of second information associated with the CORESET scheduling the second signal or second information associated with the default CORESET of the second signal.
[0202] In one embodiment, the first information associated with the first signal includes the first information associated with the second information, where the second information is associated with the first signal, and where the first information associated with the second signal includes the first information associated with the second information, where the second information is associated with the second signal.
[0203] In one embodiment, the first information associated with the second information associated with the first signal includes the first information associated with the second information associated with the CORESET that schedules the first signal.
[0204] In one embodiment, the first information associated with the second information associated with the second signal includes at least one of the first information associated with the second information associated with the CORESET that schedules the second signal or the first information associated with the second information associated with the default CORESET of the second signal.
[0205] In one embodiment, one of the first signal or the second signal includes at least one of PDCCH, PDSCH, CSI-RS, or aperiodic CSI-RS.
[0206] Figure 14 A flowchart of a process according to an embodiment of the present disclosure is shown. Figure 14 The process shown in can be used in a wireless terminal (e.g., a UE) and includes the following steps:
[0207] Step 1400: When at least one event occurs, receive a second signal from a radio network node based on the TCI state associated with the first signal, where the first signal and the second signal overlap within at least one time unit.
[0208] In Figure 14 In the process shown, when at least one event occurs, the wireless terminal receives a second signal from a radio network node (e.g., a BS) based on the TCI associated with the first signal. Note that the first signal and the second signal overlap within at least one time unit.
[0209] In one embodiment, the at least one event includes at least one of the following:
[0210] - The offset between the PDCCH that schedules the second signal and the second signal is less than a threshold.
[0211] - The first signal is indicated to have a TCI state.
[0212] - The first information associated with the first signal is the same as the first information associated with the second signal, or
[0213] - The second information associated with the first signal is the same as the second information associated with the second signal.
[0214] The first information includes at least one of a panel index or a set.
[0215] The second information includes at least one of a CORESET group, a CC, or a CC group.
[0216] In one embodiment, the panel index is configured in at least one of the following: TCI state, CSI report, CORESET, CORESET group, CC, or CC group.
[0217] In one embodiment, the set includes at least one of a TCI state or an RS.
[0218] In one embodiment, the first information associated with the first signal includes the first information associated with the TCI state applicable to the first signal.
[0219] In one embodiment, the first information associated with the second signal includes the first information associated with the TCI state applicable to the second signal.
[0220] In one embodiment, the TCI state applicable to the first signal includes the TCI state indicated by the downlink control information DCI for the first signal.
[0221] In one embodiment, the TCI state applicable to the second signal includes at least one of the following: the TCI state indicated by the DCI for the second signal, the TCI state activated by the MAC-CE of the default CORESET for the second signal, or the TCI state corresponding to the lowest code point among multiple TCI code points, the multiple code points including multiple TCI states applicable to the second signal.
[0222] In one embodiment, the first information associated with the first signal includes the first information associated with the RS applicable to the first signal.
[0223] In one embodiment, the first information associated with the second signal includes the first information associated with the RS applicable to the second signal.
[0224] In one embodiment, the RS applicable to the first signal includes the QCL RS in the TCI state indicated by the DCI for the first signal.
[0225] In one embodiment, the RS applicable to the second signal includes at least one of the following: the QCL RS in the TCI state indicated by the DCI for the second signal; the QCL RS in the TCI state activated by the MAC-CE of the default CORESET for the second signal; the QCL RS in the TCI state corresponding to the lowest code point among a plurality of TCI code points, the plurality of TCI code points including a plurality of TCI states applicable to the second signal; or the QCL RS of the default CORESET applicable to the second signal.
[0226] In one embodiment, the second information associated with the first signal includes the second information associated with the CORESET scheduling the first signal.
[0227] In one embodiment, the second information associated with the second signal includes at least one of the second information associated with the CORESET scheduling the second signal or the second information associated with the default CORESET of the second signal.
[0228] In one embodiment, the first information associated with the first signal includes the first information associated with the second information, the second information being associated with the first signal, and wherein the first information associated with the second signal includes the first information associated with the second information, the second information being associated with the second signal.
[0229] In one embodiment, the first information associated with the second information associated with the first signal includes the first information associated with the second information associated with the CORESET scheduling the first signal.
[0230] In one embodiment, the first information associated with the second information associated with the second signal includes at least one of the first information associated with the second information associated with the CORESET scheduling the second signal or the first information associated with the second information associated with the default CORESET of the second signal.
[0231] In one embodiment, the TCI state associated with the first signal includes that the first information associated with the TCI state is different from the first information associated with the first signal.
[0232] In one embodiment, that the first information associated with the TCI state is different from the first information associated with the first signal includes that the first information associated with the TCI state is different from the first information associated with the indicated TCI state, the indicated TCI state being applicable to the first signal.
[0233] In one embodiment, it is associated with a set of TCI states and configurations associated with the first signal, wherein the set of configurations is associated with the first information or the second information.
[0234] In one embodiment, the set of configurations is provided by a control command, wherein the control command includes at least one of RRC, signaling, MAC-CE, or DCI.
[0235] In one embodiment, one of the first signal or the second signal includes at least one of PDCCH, PDSCH, CSI-RS, or aperiodic CSI-RS.
[0236] Figure 15 A flowchart of a process according to an embodiment of the present disclosure is shown. Figure 15 The process shown in can be used in a wireless terminal (e.g., a UE) and includes the following steps:
[0237] Step 1500: When at least one event occurs, preferentially receive the first signal, wherein the first signal and the second signal overlap within at least one time unit.
[0238] In Figure 15 In the process shown, when at least one event occurs, for example, when the first signal and the second signal overlap within at least one time unit, the wireless terminal can preferentially receive the first signal.
[0239] In one embodiment, preferentially receiving the first signal includes at least one of only receiving the first signal or not receiving the second signal.
[0240] In one embodiment, the at least one event includes at least one of the following:
[0241] - The offset between the PDCCH scheduling the second signal and the second signal is less than a threshold,
[0242] - The first signal is indicated to have a TCI state,
[0243] - The first information associated with the first signal is the same as the first information associated with the second signal, or
[0244] - The second information associated with the first signal is the same as the second information associated with the second signal.
[0245] The first information includes at least one of a panel index or a set.
[0246] The second information includes at least one of a CORESET group, a CC, or a CC group.
[0247] In one embodiment, the panel index is configured in at least one of the following: TCI state, CSI report, CORESET, CORESET group, CC, or CC group.
[0248] In one embodiment, the set includes at least one of TCI state or RS.
[0249] In one embodiment, the first information associated with the first signal includes the first information associated with the TCI state applicable to the first signal.
[0250] In one embodiment, the first information associated with the second signal includes the first information associated with the TCI state applicable to the second signal.
[0251] In one embodiment, the TCI state applicable to the first signal includes the TCI state indicated by the downlink control information DCI for the first signal.
[0252] In one embodiment, the TCI state applicable to the second signal includes at least one of the following: the TCI state indicated by the DCI for the second signal; the TCI state activated by the MAC-CE of the default CORESET for the second signal; or the TCI state corresponding to the lowest code point among multiple TCI code points, the multiple code points including multiple TCI states applicable to the second signal.
[0253] In one embodiment, the first information associated with the first signal includes the first information associated with the RS applicable to the first signal.
[0254] In one embodiment, the first information associated with the second signal includes the first information associated with the RS applicable to the second signal.
[0255] In one embodiment, the RS applicable to the first signal includes the QCL RS in the TCI state indicated by the DCI for the first signal.
[0256] In one embodiment, the RS applicable to the second signal includes at least one of the following: the QCL RS in the TCI state indicated by the DCI for the second signal; the QCL RS in the TCI state activated by the MAC-CE of the default CORESET for the second signal; the QCL RS in the TCI state corresponding to the lowest code point among multiple TCI code points, the multiple TCI code points including multiple TCI states applicable to the second signal; or the QCL RS of the default CORESET applicable to the second signal.
[0257] In one embodiment, the second information associated with the first signal includes the second information associated with the CORESET scheduling the first signal.
[0258] In one embodiment, the second information associated with the second signal includes at least one of the second information associated with the CORESET scheduling the second signal or the second information associated with the default CORESET of the second signal.
[0259] In one embodiment, the first information associated with the first signal includes the first information associated with the second information, the second information being associated with the first signal, and wherein the first information associated with the second signal includes the first information associated with the second information, the second information being associated with the second signal.
[0260] In one embodiment, the first information associated with the second information associated with the first signal includes the first information associated with the second information associated with the CORESET scheduling the first signal.
[0261] In one embodiment, the first information associated with the second information associated with the second signal includes at least one of the first information associated with the second information associated with the CORESET scheduling the second signal or the first information associated with the second information associated with the default CORESET of the second signal.
[0262] In one embodiment, one of the first signal or the second signal includes at least one of PDCCH, PDSCH, CSI-RS, or aperiodic CSI-RS.
[0263] Although various embodiments of the present disclosure have been described above, it should be understood that they are presented by way of example only and not as limitations. Similarly, the various figures may depict exemplary architectures or configurations that are provided to enable those of ordinary skill in the art to understand the exemplary features and functions of the present disclosure. However, those skilled in the art will understand that the present disclosure is not limited to the exemplary architectures or configurations shown, but may be implemented using various alternative architectures and configurations. Additionally, as understood by those of ordinary skill in the art, one or more features of one 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 embodiments.
[0264] It should also be understood that any reference in this document to an element using a designating name such as "first", "second", etc. generally does not limit the quantity or order of these elements. Rather, these designating names are herein used as a convenient means to distinguish between two or more elements or multiple instances of an element. Thus, the reference to a first and a second element does not mean that only two elements can be used or that the first element must, in some way, precede the second element.
[0265] In addition, those of ordinary skill in the art will understand that any of a variety of different technical means can be used to represent information and signals. For example, the data, instructions, commands, information, signals, bits, and symbols that may be referred to in the above description can be represented, for example, by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
[0266] 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 connection with the aspects disclosed herein can be implemented by electronic hardware (e.g., digital implementation, analog implementation, or a combination of both), firmware, various forms of programs or design code incorporating instructions (for convenience, referred to herein as "software" or "software units"), or any combination of these technologies.
[0267] To clearly illustrate this interchangeability of hardware, firmware, and software, the various illustrative components, blocks, units, circuits, and steps have been generally described above in terms of their functionality. Whether this functionality is implemented as hardware, firmware, or software, or as a combination of these technologies, depends on the particular application and the design constraints imposed on the overall system. Those skilled in the art can implement the described functionality in various ways for each particular application, but such implementation decisions do not result in a departure from the scope of this disclosure. According to various embodiments, a processor, device, component, circuit, structure, machine, unit, etc. can be configured to perform one or more of the functions described herein. The terms "configured to" or "configured for" as 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 the specified operation or function.
[0268] In addition, those skilled in the art will understand that the various illustrative logical blocks, units, devices, components, and circuits described herein can be implemented within 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. The logical 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, e.g., a combination of a DSP and a microprocessor, a combination of multiple microprocessors, a combination of one or more microprocessors in conjunction with a DSP core, or any other suitable configuration that performs the functions described herein. If implemented in software, these functions may be stored as one or more instructions or code on a computer-readable medium. Thus, the steps of the methods or algorithms disclosed herein may be implemented as software stored on a computer-readable medium.
[0269] The computer-readable medium includes computer storage media and communication media, where the communication media includes any medium that can transfer a computer program or code from one place to another. The storage media may be any available medium accessible by a computer. By way of example and not limitation, such computer-readable media may include RAM, ROM, EEPROM, CD-ROM, or other optical disk storage, magnetic disk storage, or other magnetic storage devices, or any other medium that can be used to store the desired program code in the form of instructions or data structures and that can be accessed by a computer.
[0270] 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. Additionally, for purposes of discussion, the various units are described as discrete units; however, as will be apparent to one of ordinary skill in the art, in accordance with embodiments of the present disclosure, two or more units may be combined to form a single unit that performs the associated functions.
[0271] In addition, a memory or other storage device and communication components may be used in embodiments of the present disclosure. It should be understood that, for clarity, the above description has described embodiments of the present disclosure with reference to different functional units and processors. However, it is apparent that any suitable distribution of functions may be applied between different functional units, processing logic elements, or domains without departing from the present disclosure. For example, functions shown to be performed by separate processing logic elements or controllers may be performed by the same processing logic element or controller. Thus, the reference to a particular functional unit is merely a reference to the appropriate means for providing the described function, and does not denote a strict logical or physical structure or organization.
[0272] Various modifications to the implementations described in this disclosure will be apparent to those skilled in the art, and the general principles defined herein can be applied to other implementations without departing from the scope of this disclosure. Thus, this disclosure is not limited to the implementations shown herein, but rather conforms to 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 for use in a wireless terminal, the wireless communication method comprises: when at least one event occurs, preferentially receiving a first signal, wherein the first signal and a second signal overlap within at least one time unit; wherein the at least one event includes that first information associated with the first signal is the same as first information associated with the second signal, wherein the first information associated with the first signal includes first information associated with a Transmission Configuration Indicator (TCI) state applicable to the first signal, and wherein the first information associated with the second signal includes first information associated with a TCI state applicable to the second signal.
2. The wireless communication method according to claim 1, wherein the preferentially receiving the first signal includes at least one of the following: receiving only the first signal.
3. The wireless communication method according to claim 1 or 2, wherein the at least one event includes at least one of the following: an offset between a Physical Downlink Control Channel (PDCCH) scheduling the second signal and the second signal is less than a threshold; the first signal is indicated to have a Transmission Configuration Indicator (TCI) state; second information associated with the first signal is the same as second information associated with the second signal, wherein the first information includes at least one of an antenna panel index or a set, the set including at least one of a TCI state or a Reference Signal (RS), and wherein the second information includes at least one of a Control Resource Set (CORESET) group, a Component Carrier (CC), or a CC group.
4. The wireless communication method according to claim 3, wherein the antenna panel index is configured in at least one of the following: a TCI state, a Channel State Information (CSI) report, a CORESET, a CORESET group, a CC, or a CC group.
5. The wireless communication method according to claim 1, wherein the TCI state applicable to the first signal includes a TCI state indicated by Downlink Control Information (DCI) for the first signal, and wherein the TCI state applicable to the second signal includes at least one of the following: a TCI state indicated by DCI for the second signal, a TCI state activated by a Medium Access Control - Control Element (MAC - CE) of a default CORESET for the second signal, or a TCI state corresponding to the lowest code point among multiple TCI code points, the multiple TCI code points including multiple TCI states applicable to the second signal.
6. The wireless communication method according to claim 3, wherein the first information associated with the first signal includes first information associated with an RS applicable to the first signal, and wherein the first information associated with the second signal includes first information associated with an RS applicable to the second signal.
7. The wireless communication method according to claim 6, wherein The RS applicable to the first signal includes a QCL RS in a TCI state indicated by DCI for the first signal, and wherein the RS applicable to the second signal includes at least one of the following: a QCL RS in a TCI state indicated by DCI for the second signal; a QCL RS in a TCI state activated by a MAC-CE of a default CORESET for the second signal; a QCL RS in a TCI state corresponding to the lowest code point among a plurality of TCI code points, the plurality of TCI code points including a plurality of TCI states applicable to the second signal; or a QCL RS of a default CORESET applicable to the second signal.
8. The wireless communication method according to claim 3, wherein, the second information associated with the first signal includes second information associated with the CORESET scheduling the first signal, and wherein the second information associated with the second signal includes at least one of second information associated with the CORESET scheduling the second signal or second information associated with the default CORESET of the second signal.
9. The wireless communication method according to claim 3, wherein, the first information associated with the first signal includes first information associated with the second information, the second information being associated with the first signal, wherein the first information associated with the second signal includes first information associated with the second information, the second information being associated with the second signal.
10. The wireless communication method according to claim 9, wherein, the first information associated with the second information associated with the first signal includes first information associated with the second information associated with the CORESET scheduling the first signal, and wherein the first information associated with the second information associated with the second signal includes at least one of first information associated with the second information associated with the CORESET scheduling the second signal or first information associated with the second information associated with the default CORESET of the second signal.
11. The wireless communication method according to any one of claims 1 to 2 and 4 to 10, wherein, one of the first signal or the second signal includes at least one of PDCCH, physical downlink shared channel PDSCH, CSI-RS, or aperiodic CSI-RS.
12. The wireless communication method according to claim 3, wherein, one of the first signal or the second signal includes at least one of PDCCH, physical downlink shared channel PDSCH, CSI-RS, or aperiodic CSI-RS.
13. A wireless terminal, comprising: a processor configured to preferentially receive a first signal when at least one event occurs, wherein the first signal and the second signal overlap within at least one time unit; wherein, the at least one event includes that first information associated with the first signal is the same as first information associated with the second signal, wherein, the first information associated with the first signal includes first information associated with a TCI state applicable to the first signal, and wherein, the first information associated with the second signal includes first information associated with a TCI state applicable to the second signal.
14. The wireless terminal according to claim 13, wherein the processor is further configured to execute the wireless communication method of any one of claims 2 to 12.
15. A computer program product, comprising computer-readable program media code stored thereon, the code, when executed by a processor, causes the processor to implement the wireless communication method according to any one of claims 1 to 12.
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