Communication method and device

Abstract

The invention provides a communication method and device. A method of communication includes receiving, by a processor of an apparatus, at least one Layer 1 Transmission or Reception (L1Tx / Rx) configuration associated with at least one source reference signal and at least one parameter; receiving, by the processor, a second configuration indicating whether the at least one L1Tx / Rx configuration is applicable to a target reference signal or a target channel; and transmitting or receiving, by the processor, the target reference signal or the target channel based on the at least one parameter when the second configuration indicates that the at least one L1 transmission or reception configuration is applicable to the target reference signal or the target channel. By using the present invention, transmission or reception can be better performed.

Description

Technical Field

[0001] The present invention relates generally to mobile communications, and more specifically to Layer 1 (L1) transmission or reception (Tx / Rx) configurations for Quasi-Co-location (QCL) associated with user equipment (UE) and network devices in mobile communications. Background Technology

[0002] Unless otherwise stated, the methods described in this section are not considered prior art in the claims, nor are they considered prior art by virtue of their inclusion in this section.

[0003] In 5G New Radio (NR), quasi-co-location refers to a scenario where user equipment (UE) can assume that different antenna ports share certain common channel properties. These properties include Doppler spread, Doppler shift, average delay, delay spread, etc. The QCL framework allows the UE to reuse channel estimation results obtained from the source reference signal for receiving another signal or channel that is QCLed with the first signal. This reduces the complexity and power consumption of the UE's receiver.

[0004] However, the currently developed QCL framework employs a complex QCL relationship between the source and target reference signals, leading to complicated QCL updates and indications. This is especially true when using the Transport Configuration Indicator (TCI) framework to configure QCL relationships. Therefore, a new QCL configuration scheme is needed to address these issues. Summary of the Invention

[0005] The following overview is illustrative only and is not intended to be limiting in any way. That is, it is provided to introduce the concept, key points, benefits, and advantages of the novel and non-obvious techniques described in this invention. Selected implementations are further described in the detailed description below. Therefore, the following overview is not intended to identify essential features of the claimed subject matter, nor is it intended to define the scope of the claimed subject matter.

[0006] This invention provides a communication method comprising: receiving, by a processor of a device, at least one Layer 1 transmission or reception (L1 Tx / Rx) configuration associated with at least one source reference signal and at least one parameter; receiving, by the processor, a second configuration indicating whether the at least one L1 Tx / Rx configuration is applicable to a target reference signal or a target channel; and, when the second configuration indicates that the at least one L1 transmission or reception configuration is applicable to the target reference signal or target channel, transmitting or receiving the target reference signal or target channel based on the at least one parameter.

[0007] This invention provides a communication device comprising: a transceiver for wireless communication during operation; and a processor communicatively coupled to the transceiver, such that during operation, the processor performs the following operations: receiving via the transceiver at least one Layer 1 transmission or reception L1 Tx / Rx configuration associated with at least one source reference signal and at least one parameter; receiving via the transceiver a second configuration indicating whether the at least one L1 Tx / Rx configuration is applicable to a target reference signal or a target channel; and, when the second configuration indicates that the at least one L1 transmission or reception configuration is applicable to the target reference signal or target channel, transmitting or receiving the target reference signal or target channel via the transceiver based on the at least one parameter.

[0008] This invention provides a communication method comprising: transmitting, by a processor of a network node, at least one Layer 1 transmission or reception configuration associated with at least one source reference signal and at least one parameter; and transmitting, by the processor, a second configuration indicating whether the at least one Layer 1 transmission or reception configuration is applicable to a target reference signal or a target channel.

[0009] It is worth noting that while the descriptions provided herein can be used in the context of certain radio access technologies, networks, and network topologies, such as LTE, LTE Advanced, LTE Advanced Pro, 5G, NR, IoT, NB-IoT, IIoT, B5G, and 6G, the proposed concepts, schemes, and any variations / derivatives thereof can be implemented in, used in, and by other types of radio access technologies, networks, and network topologies. Therefore, the scope of the invention is not limited to the examples described herein. Attached Figure Description

[0010] Figure 1 This is an example scenario according to an embodiment of the present invention.

[0011] Figure 2 It is a layered QCL structure according to an embodiment of the present invention.

[0012] Figure 3 This is a scenario that supports the combined DL / UL mode.

[0013] Figure 4 This is a scenario that supports separate DL / UL modes.

[0014] Figure 5 These are example scenarios describing different mobility situations.

[0015] Figure 6 This is an example communication system according to an embodiment of the present invention.

[0016] Figure 7 This is an example process according to an embodiment of the present invention.

[0017] Figure 8 This is an example process according to an embodiment of the present invention. Detailed Implementation

[0018] This invention discloses detailed embodiments and implementations of the claimed subject matter. However, it should be understood that the inventive embodiments and implementations are merely illustrative of the claimed subject matter, which can be implemented in various forms. Moreover, the invention can be implemented in many different forms and should not be construed as limited to the exemplary embodiments and implementations set forth herein. Rather, these exemplary embodiments and implementations are provided to make the specification of this invention comprehensive and complete, and to fully convey the scope of the invention to those skilled in the art. In the following description, details of known features and techniques may be omitted to avoid unnecessarily obscuring the presented embodiments and implementations.

[0019] Overview

[0020] Embodiments of the present invention relate to various techniques, methods, schemes, and / or solutions related to Layer 1 (L1) transmission or reception (Tx / Rx) configurations for Quasi-Co-location (QCL) in user equipment and network devices in mobile communications. According to the present invention, multiple possible schemes can be implemented individually or in combination. That is, although these possible solutions may be described individually below, two or more of these possible solutions may be implemented in a combination or other combination manner.

[0021] Figure 1 This is an example scenario according to an embodiment of the present invention. Scenario 100 involves at least one network node and a UE, which may be part of a wireless communication network (e.g., an LTE network, a 5G / NR network, an IoT network, or a 6G network). Scenario 100 illustrates a network framework. The UE may connect to the network side. The network side may include one or more network nodes.

[0022] In some embodiments, scenario 100 supports a layered quasi-co-location structure, where the source reference signal and target reference signal / target channel with QCL relationship reside in two adjacent layers of the QCL structure. However, the QCL structure supported by scenario 100 is not limited to this. In some embodiments, a network node may transmit one, two, four, or more L1 Tx / Rx configurations to the UE, each L1 Tx / Rx configuration being associated with at least one source reference signal and at least one parameter. These L1 Tx / Rx configurations are specifically provided to facilitate UE-dedicated downlink (DL) and uplink (UL) reception and transmission. When the UE is served by a single Transmitter Receiver Point (TRP), the network node may transmit only one L1 Tx / Rx configuration to the UE. Multiple L1 Tx / Rx configurations can be used for multi-TRP operation / mobility. L1 Tx / Rx configurations can be transmitted via RRC signaling, MAC-CE, DCI, or a combination thereof. For example, a network node may use RRC signaling to configure the initial parameters of each L1 Tx / Rx configuration. Subsequently, network nodes can use MAC-CE and / or DCI to dynamically update the parameters in each L1 Tx / Rx configuration.

[0023] Furthermore, network nodes can utilize RRC signaling and / or DCI to transmit another configuration indicating whether an L1 Tx / Rx configuration applies to the target reference signal / target channel. Essentially, this is used to configure whether to follow an L1 Tx / Rx configuration, and if multiple L1 Tx / Rx configurations exist, which one(s) should be followed. In one example, a network node can use RRC signaling to configure the baseline association between the L1 Tx / Rx configuration and the target reference signal / target channel. For DL / UL reception / transmission scheduled by DCI, particularly in multi-TRP scenarios, the scheduling DCI can indicate the specific L1 Tx / Rx configuration used for the scheduled DL / UL reception / transmission. Accordingly, the UE can transmit or receive the target reference signal / target channel based on the parameters provided by the applicable L1 Tx / Rx configuration.

[0024] In some embodiments, the parameters provided by the L1 Tx / Rx configuration may include DL-related parameters, UL-related parameters, or both. DL-related parameters may include QCL assumptions for DL ​​reception. UL-related parameters may include one or a combination of spatial relationships of UL transmissions, Tx power control (PC) parameters, and timing advance (TA) parameters. In some embodiments, the spatial relationships of UL transmissions may be the same as the source reference signal of the QCL assumptions. Tx PC parameters may include one or a combination of a path loss reference signal, a P0 index related to the target received power, an alpha value (e.g., a path loss compensation factor), and a closed-loop index. In some embodiments, a separate path loss reference signal may be provided if the path loss reference signal is not the same as the source reference signal of the QCL assumptions or spatial relationships. It should be understood that the range of parameters provided by the L1 Tx / Rx configuration is not limited to the parameters described above.

[0025] Figure 2 This is a layered QCL structure 200 according to an embodiment of the present invention. For example... Figure 2 As shown, the hierarchical QCL structure 200 comprises three layers, and each arrow in the hierarchical QCL structure 200 points from the target reference signal / target channel to the source reference signal. Specifically, the synchronization signal block (SSB), as the cell-level source reference signal, is the source reference signal of the transmit-receive-point reference signal (TRP-RS). In one embodiment, the TRP-RS can be used for time / frequency tracking and beam management (BM). That is, time / frequency tracking and BM share the same reference signal resources. The TRP-RS, as the TRP-level source reference signal, is the source reference signal of the target reference signal / target channel, where the target reference signal / target channel includes, for example, the Physical Downlink Shared Channel (PDSCH) demodulation reference signal (DM-RS), the Physical Downlink Control Channel (PDCCH) DM-RS, the Channel State Information Reference Signal (CSI-RS), the Physical Uplink Shared Channel (PUSCH), the Physical Uplink Control Channel (PUCCH), and the Sounding Reference Signal (SRS). In this invention, the target reference signal / target channel may include... Figure 2 The signals or channels shown may also include other signals or channels.

[0026] PDSCH / PDCCH DM-RS (i.e., PDxCH DM-RS) and CSI-RS are associated with DL reception, while PUSCH / PUCCH (i.e., PUxCH) and SRS are associated with UL transmission. In some embodiments, when the combined DL / UL mode is supported, the target reference signal / target channel associated with DL reception and the target reference signal / target channel associated with UL transmission share the same L1 transmission / reception configuration. Figure 3This is scenario 300, which supports the combined DL / UL mode. In scenario 300, each of the L1 transmit / receive configurations_1 to L1 transmit / receive configurations_N (where N is an integer) received by the user equipment (UE) is shared by the PDxCH DM-RS and CSI-RS associated with DL reception, and the PUxCH and SRS associated with UL transmission. For example, each of the L1 transmit / receive configurations_1 to L1 transmit / receive configurations_N can provide QCL assumptions for DL ​​reception, spatial relationships for UL transmission, transmission power control parameters, and timing advance parameters. Specifically, the QCL assumptions for DL ​​reception and the spatial relationships for UL transmission share the same source reference signal (i.e., TRP-RS). However, the transmission power control parameters and timing advance parameters do not share the same source reference signal for the QCL assumptions or spatial relationships. The UE can receive the PDxCH DM-RS and CSI-RS and transmit the PUxCH and SRS using the parameters in the applicable L1 transmit / receive configuration.

[0027] Figure 4 This is scenario 400, which supports separate DL / UL modes. In scenario 400, each of the L1 receive configurations_1 to L1 receive configurations_N (where N is an integer) received by the UE provides QCL assumptions for receiving PDxCH DM-RS and CSI-RS. Each of the L1 transmit configurations_1 to L1 transmit configurations_N (where N is an integer) received by the UE provides spatial relationships, transmit power control parameters, and timing advance parameters for transmitting PUxCH and SRS. That is, separate L1 receive configurations and L1 transmit configurations can be used for DL ​​reception and UL transmission respectively.

[0028] In one embodiment, the network node transmits a single L1 transmit / receive configuration to the UE. The UE is configured to receive PDxCH DM-RS and CSI-RS, and transmit PUxCH and SRS, following the parameters provided by the L1 transmit / receive configuration. In another embodiment, the network node transmits two L1 transmit / receive configurations to the UE: a primary transmit / receive configuration and a secondary transmit / receive configuration. The UE may, by default, use the parameters provided by the primary transmit / receive configuration to receive PDxCH DM-RS and CSI-RS, and transmit PUxCH and SRS. The UE only uses the parameters provided by the secondary transmit / receive configuration to receive PDxCH DM-RS and CSI-RS, and transmit PUxCH and SRS, when it receives a configuration indicating that the secondary transmit / receive configuration is applicable. Specifically, the primary L1 transmit / receive configuration may be used for common DL / UL channels, such as PDCCH and its corresponding PDSCH / PUSCH on the common search space, and non-dedicated PUCCH resources. Furthermore, under certain conditions, the primary L1 transmit / receive configuration can be used for UE-specific DL / UL channels / signals, including PDCCHs with UE-specific search spaces and their corresponding PDSCH / PUSCHs, as well as dedicated PUCCH resources. These conditions may include the initial higher-layer configuration or a higher-layer reconfiguration involving synchronization processes, the absence of a secondary L1 transmit / receive configuration, or the absence of explicit RRC or DCI signaling indicating that UE-specific DL / UL channels should follow the secondary L1 transmit / receive configuration. Conversely, if a secondary L1 transmit / receive configuration is provided, it can be used for any DL / UL channel, but its application depends on the network explicitly informing the UE via RRC or DCI signaling that a particular DL / UL channel should follow this secondary L1 transmit / receive configuration. In other words, the secondary L1 transmit / receive configuration can be used for any DL / UL channel, but its application for a particular DL / UL channel depends on the network explicitly informing the UE via RRC or DCI signaling.

[0029] Figure 5This is an example scenario 500 describing different mobility situations. In scenario 500, base station (BS) 510 is associated with TRP_1, while base station 520 is associated with TRP_2 and TRP_3. For example, a primary L1 transmit / receive configuration or a primary and secondary L1 transmit / receive configuration can be provided to handle various mobility situations. In the first case, the primary L1 transmit / receive configuration associated with TRP_1 does not need to be updated because UE movement 530 occurs within the same base station (i.e., BS 510) and under the same beam. The second case involves updating the primary L1 transmit / receive configuration associated with TRP_1, which typically occurs when UE movement 540 is within the same base station but switches beams, requiring changes to the quasi-co-location assumption or path loss reference signal. The third case uses a primary and secondary L1 transmit / receive configuration. As shown in UE movement 550, this scenario includes multiple connectivity for connected-mode mobility, where the UE can connect to two TRPs within the same base station (i.e., BS 520); and a multi-TRP scheme where the UE remains within the coverage area of ​​two TRPs. In one example, the primary L1 transmit / receive configuration is associated with TRP_2, while the secondary L1 transmit / receive configuration is associated with TRP_3. Receiving L1 transmit / receive configurations from both TRP_2 and TRP_3 simultaneously provides enhanced throughput and reliability. In the fourth case, UE Mobile560 involves Layer 3 (L3) mobility based on Radio Resource Control (RRC), switching to different base stations via RRC signaling configuration, thus eliminating the need to update L1 parameters.

[0030] Illustrative Implementation

[0031] Figure 6 This is an example communication system 600 according to an embodiment of the present invention, including an example communication device 610 and an example network device 620. The communication device 610 and the network device 620 can perform various functions to implement the schemes, techniques, processes and methods described herein related to L1 Tx / Rx configuration for QCL in user equipment and network devices in mobile communications, including the above-described scenarios / schemes and the processes 700 and 800 described below.

[0032] The communication device 610 can be part of an electronic device, which can be a UE (User Equipment), such as a portable or mobile device, a wearable device, a wireless communication device, or a computing device. For example, the communication device 610 can be implemented in a smartphone, smartwatch, personal digital assistant, electronic control unit (ECU) in a vehicle, digital camera, or computing device such as a tablet, laptop, or notebook computer. The communication device 610 can also be part of a machine-type device, which can be an Internet of Things (IoT), narrowband Internet of Things (NB-IoT), enhanced machine-type communication (eMTC), or industrial Internet of Things (IIoT) user equipment, such as a fixed or stationary device, a home appliance, a roadside unit (RSU), a wired communication device, or a computing device. For example, the communication device 610 can be implemented in a smart thermostat, a smart refrigerator, a smart door lock, a wireless speaker, or a home control center. Alternatively, the communication device 610 may be implemented as one or more integrated circuit (IC) chips, such as, but not limited to, one or more single-core processors, one or more multi-core processors, one or more reduced-instruction-set computing (RISC) processors, or one or more complex-instruction-set computing (CISC) processors. The communication device 610 may include... Figure 6 At least a portion of the components shown, such as processor 612. Communication device 610 may also include one or more other components unrelated to the embodiments presented herein (e.g., internal power supply, display device, and / or user interface device), but for the sake of brevity, these components of communication device 610 are not listed here. Figure 6 This is shown in the text and not described in the following text.

[0033] Network device 620 may be part of a network device, which may be a network node, such as a satellite, BS, small cell, router, or gateway for an IoT network. For example, network device 620 may be implemented in an eNB / gNB / TRP, satellite, or base station in a satellite or 4G / 5G / B5G / 6G, NR, IoT, NB-IoT, or IIoT network. Alternatively, network device 620 may be implemented as one or more IC chips, such as, but not limited to, one or more single-core processors, one or more multi-core processors, or one or more RISC or CISC processors. Network device 620 may include... Figure 6At least a portion of the components shown, such as processor 622. Network device 620 may also include one or more other components unrelated to the embodiments presented herein (e.g., internal power supply, display device, and / or user interface device), but for the sake of brevity, these components of network device 620 are not listed here. Figure 6 It is shown in the text and is not described in the following text.

[0034] On the one hand, each of processors 612 and 622 can be implemented as one or more single-core processors, one or more multi-core processors, or one or more CISC processors. That is, even though the singular term "one processor" is used herein to refer to processors 612 and 622, according to the present invention, each of processors 612 and 622 may include multiple processors in some embodiments and a single processor in other implementations. On the other hand, each of processors 612 and 622 can be implemented as hardware (and optionally firmware) containing electronic components, such as, but not limited to, one or more transistors, one or more diodes, one or more capacitors, one or more resistors, one or more inductors, one or more memristors, and / or one or more variable capacitors, which are configured and arranged to achieve a specific purpose according to the present invention. In other words, at least in some implementations, processors 612 and 622 are dedicated machines specifically designed, configured, and arranged to perform specific tasks in devices (e.g., represented by communication device 610) and networks (e.g., represented by network device 620) including L1 Tx / Rx configurations for QCL in various embodiments of the present invention.

[0035] In some implementations, the communication device 610 may further include a transceiver 616 coupled to the processor 612, capable of wirelessly transmitting and receiving data. In some implementations, the communication device 610 may further include a memory 614 coupled to the processor 612, accessible by the processor 612 and storing data therein. In some implementations, the network device 620 may further include a transceiver 626 connected to the processor 622, capable of wirelessly transmitting and receiving data. In some implementations, the network device 620 may further include a memory 624 connected to the processor 622, accessible by the processor 622 and storing data therein. Therefore, the communication device 610 and the network device 620 can wirelessly communicate via their respective transceivers 616 and 626.

[0036] For better understanding, the following describes the operation, functions, and capabilities of communication device 610 and network device 620 in a mobile communication environment, wherein communication device 610 is implemented as a communication device or user equipment, and network device 620 is implemented as a network node of a communication network.

[0037] Explanatory process

[0038] Figure 7 This is an example process 700 according to an embodiment of the present invention. Process 700 may represent part or all of an aspect of implementing the design, concept, scheme, system, and method described above related to the L1 Tx / Rx configuration for QCL. More specifically, process 700 may represent one aspect of the implementation of a feature of communication device 610. Process 700 may include one or more operations, actions, or functions as shown by one or more blocks 710, 720, and 730 in the figures. Although shown as discrete blocks, depending on the desired implementation, the individual blocks of process 700 may be divided into more blocks, merged into fewer blocks, or deleted. Furthermore, the blocks / sub-blocks of process 700 may be arranged in... Figure 7 The process can be executed in the order shown, or in a different order. Furthermore, one or more blocks / sub-blocks of process 700 can be executed iteratively. Process 700 can be implemented by communication device 610 or any suitable user equipment or machine type device. For illustrative and non-limiting purposes, process 700 will be described below in the context of communication device 610. Process 700 may begin with block 710.

[0039] At 710, process 700 may involve the processor 612 of communication device 610 receiving, via transceiver 616, at least one L1 transmit / receive configuration associated with at least one source reference signal and at least one parameter. Process 700 may continue from 710 to 720.

[0040] At 720, process 700 may involve the processor 612 of communication device 610 receiving a second configuration via transceiver 616, wherein the second configuration indicates whether at least one L1 transmit / receive configuration is suitable for a target reference signal or a target channel. Process 700 may continue from block 720 to block 730.

[0041] At 730, process 700 may involve, when a second configuration indicates that at least one L1 transmission / reception configuration is applicable to a target reference signal or target channel, the processor 612 of the communication device 610 transmits or receives the target reference signal or target channel through the transceiver 616 based on at least one parameter.

[0042] In some embodiments, at least one source reference signal may include a Transmitter Receiver Reference Signal (TRP-RS). The target reference signal or target channel may include at least one of the following: Physical Downlink Shared Channel (PDSCH) Demodulation Reference Signal (DM-RS), Physical Downlink Control Channel (PDCCH) DM-RS, Channel State Information Reference Signal (CSI-RS), Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), and Sound Reference Signal (SRS).

[0043] In some embodiments, at least one L1 transmit / receive configuration is received via at least one of the following: Radio Resource Control (RRC) signaling, Media Access Control-Control Unit (MAC-CE), and Downlink Control Information (DCI).

[0044] In some embodiments, the parameters may include at least one of the following: downlink (DL) related parameters and uplink (UL) related parameters.

[0045] In some embodiments, the DL-related parameters may include a quasi-co-location (QCL) assumption for DL ​​reception.

[0046] In some embodiments, UL-related parameters may include at least one of the following: spatial relationships for UL transmission, transmission power control (PC) parameters, and timing advance (TA) parameters.

[0047] In some embodiments, a second configuration indicating whether at least one L1 transmit / receive configuration is applicable to a target reference signal or a target channel is received via at least one of the following: RRC signaling and DCI.

[0048] In some embodiments, a first target reference signal or target channel associated with DL reception and a second target reference signal or target channel associated with UL transmission are indicated to share at least one L1 transmission / reception configuration.

[0049] In some embodiments, a first target reference signal or target channel associated with DL reception and a second target reference signal or target channel associated with UL transmission are instructed to follow their respective L1 transmission / reception configurations.

[0050] In some embodiments, at least one L1 transmit / receive configuration may include a primary L1 transmit / receive configuration and a secondary L1 transmit / receive configuration. Process 700 may also involve the processor 612 of the communication device 610 transmitting or receiving a target reference signal or target channel via transceiver 616 by default based on the primary L1 transmit / receive configuration. Process 700 may further involve the processor 612 of the communication device 610 transmitting or receiving a target reference signal or target channel via transceiver 616 based on the secondary L1 transmit / receive configuration upon receiving a third configuration indicating the applicability of the secondary L1 transmit / receive configuration.

[0051] In some embodiments, the third configuration applicable to the secondary L1 transmit / receive configuration is received via at least one of the following: RRC signaling and DCI.

[0052] In some embodiments, the target reference signal or target channel may be a DL / UL channel or signal dedicated to the user equipment.

[0053] In some embodiments, the UE-specific DL / UL channel or signal may include at least one of the following: a PDCCH and corresponding PUSCH / PUSCH on the UE-specific search space, and a dedicated PUCCH resource.

[0054] In some embodiments, the primary L1 transmit / receive configuration and the secondary L1 transmit / receive configuration are associated with the same TRP index or different TRP indexes, respectively.

[0055] In some embodiments, at least one L1 transmit / receive configuration may include multiple L1 transmit / receive configurations. When at least one L1 transmit / receive configuration includes multiple L1 transmit / receive configurations, a second configuration indicates which(s) of the multiple L1 transmit / receive configurations are applicable.

[0056] Figure 8 This is an example process 800 according to an embodiment of the present invention. Process 800 may represent part or all of an aspect of implementing the design, concept, scheme, system, and method described above related to the L1 Tx / Rx configuration for QCL. More specifically, process 800 may represent an aspect of the implementation of the characteristics of network device 620 or any suitable network node. Process 800 may include one or more operations, actions, or functions as shown in one or more blocks 810-820 in the figures. Although shown as discrete blocks, depending on the desired implementation, the individual blocks of process 800 may be divided into more blocks, merged into fewer blocks, or deleted. Furthermore, the blocks / sub-blocks of process 800 may be arranged in... Figure 8 The execution can proceed in the order shown, or in a different order. Process 800 can begin at block 810.

[0057] At 810, process 800 may involve the processor 622 of network device 620 transmitting, via transceiver 626, at least one L1 transmit / receive configuration associated with at least one source reference signal and at least one parameter. Process 800 may continue from block 810 to block 820.

[0058] At 820, process 800 may involve the processor 622 of network device 620 transmitting a second configuration via transceiver 626 to indicate whether the at least one L1 transmit / receive configuration is applicable to a target reference signal or a target channel.

[0059] Additional notes

[0060] The subject matter described in this invention sometimes illustrates different components included within or connected to other components. However, it should be understood that these depicted architectures are merely examples, and many other architectures implementing the same functionality can actually be implemented. Conceptually, any arrangement of components implementing the same function is effectively “associated” to enable the desired functionality. Therefore, regardless of architecture or intermediate components, any two components combined in this invention to achieve a specific function can be considered “associated” with each other to enable the desired functionality. Similarly, any two such associated components can also be considered “operationally connected” or “operationally coupled” to each other to achieve the desired functionality, and any two components that can be suchly associated can also be considered “operationally coupled” to each other to achieve the desired functionality. Specific examples of operationally coupled components include, but are not limited to, physically mating and / or physically interacting components and / or wirelessly interacting components and / or logically interacting and / or logically interactable components.

[0061] Furthermore, regarding any plural and / or singular terms used substantially in this invention, those skilled in the art can convert them from plural to singular and / or from singular to plural as appropriate for the content and / or application. For clarity, various singular / plural substitutions may be explicitly stated in this invention.

[0062] Furthermore, those skilled in the art will understand that, generally, the terms used in this invention, and especially in the appended claims (e.g., the body of the appended claims), are generally meant as “open-ended” terms. For example, the term “comprising” should be interpreted as “including but not limited to,” the term “having” should be interpreted as “at least having,” the term “comprising” should be interpreted as “including but not limited to,” and so on. Those skilled in the art will also understand that if a specific number of claims is intentionally listed, this intention will be explicitly listed in the claims, and the absence of such a listing will not indicate this intention. For example, to aid understanding, the appended claims may include the use of the introductory phrases “at least one” and “one or more.” However, the use of such phrases should not be construed as implying that the introduction of the indefinite article “a” or “an” limits any particular claim that includes such an introductory claim to only one embodiment of such a listing, even when the same claim includes the introductory phrases “one or more” or “at least one” and indefinite articles such as “a” or “an,” for example, “a and / or one” should be interpreted as meaning “at least one” or “one or more,” the same applies to the use of definite articles used to introduce claims. Furthermore, even when a specific number of the introduced claims are explicitly listed, those skilled in the art will recognize that such a listing should be interpreted as meaning at least the number listed. For example, in the absence of other modifiers, the basic listing of "two listings" means at least two listings or two or more listings. Additionally, when using conventions such as "at least one of A, B, and C," it generally means, in the sense that those skilled in the art will understand, that a system having at least one of A, B, and C will include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B together, having A and C together, having B and C together, and / or having A, B, and C together. When using conventions such as "at least one of A, B, or C," it generally means, in the sense that those skilled in the art will understand, that a system having at least one of A, B, or C will include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B together, having A and C together, having B and C together, and / or having A, B, and C together. Those skilled in the art will also understand that any transitional words and / or phrases in the specification, claims, or drawings that actually indicate two or more options should be understood to include the possibility of including one, any, or both of these items. For example, the phrase "A or B" will be understood to include the possibility of including "A" or "B" or "A and B".

[0063] As can be seen from the foregoing, it is understood that various embodiments of the present invention have been described for illustrative purposes, and various modifications can be made without departing from the scope and spirit of the invention. Therefore, the various embodiments disclosed in this invention are not intended to be limiting, and the true scope and spirit are determined by the appended claims.

Claims

1. A communication method, comprising: The device's processor receives at least one Layer 1 transmission or L1 Tx / Rx configuration associated with at least one source reference signal and at least one parameter; The processor receives a second configuration indicating whether the at least one L1 Tx / Rx configuration is applicable to the target reference signal or the target channel; as well as When the second configuration indicates that the at least one L1 transmission or reception configuration is applicable to the target reference signal or target channel, the processor transmits or receives the target reference signal or target channel based on the at least one parameter.

2. The communication method as described in claim 1, characterized in that, The at least one source reference signal includes a Transmit Receive Point Reference Signal (TRP-RS), wherein the target reference signal or target channel includes at least one of the following: Physical Downlink Shared Channel (PDSCH) Demodulation Reference Signal (DM-RS), Physical Downlink Control Channel (PDCCH) DM-RS, Channel State Information Reference Signal (CSI-RS), Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), and Sound Reference Signal (SRS).

3. The communication method as described in claim 1, characterized in that, The at least one L1 Tx / Rx configuration is received via at least one of the following: Radio Resource Control (RRC) signaling, Media Access Control-Control Unit (MAC-CE) and Downlink Control Information (DCI).

4. The communication method as described in claim 1, characterized in that, The at least one parameter includes at least one of the following: downlink DL-related parameters and uplink UL-related parameters, wherein: The DL-related parameters include the quasi-co-located QCL assumption for DL ​​reception; or The UL-related parameters include at least one of the following: spatial relationships for UL transmission, transmission power control (PC) parameters, and timing advance (TA) parameters.

5. The communication method as described in claim 1, characterized in that, The second configuration is received via at least one of the following: RRC signaling and DCI.

6. The communication method as described in claim 1, characterized in that: The first target reference signal or target channel associated with DL reception and the second target reference signal or target channel associated with UL transmission are indicated to share at least one L1 Tx / Rx configuration; or The first target reference signal or target channel and the second target reference signal or target channel are instructed to follow their respective L1 Tx / Rx configurations.

7. The communication method as described in claim 1, characterized in that, The at least one L1 Tx / Rx configuration includes a primary L1 Tx / Rx configuration and a secondary L1 Tx / Rx configuration, and the method further includes: The processor, by default based on the main L1 Tx / Rx configuration, transmits or receives the target reference signal or target channel; and Upon receiving a third configuration indicating the applicability of the secondary L1 Tx / Rx configuration, the processor transmits or receives the target reference signal or target channel based on the secondary L1 Tx / Rx configuration.

8. The communication method as described in claim 7, characterized in that: This third configuration is received via at least one of the following: RRC signaling and DCI; or The target reference signal or target channel is a DL or UL channel or signal dedicated to the user equipment (UE).

9. The communication method as described in claim 8, characterized in that, The UE-specific DL or UL channel or signal includes at least one of the following: PDCCH and corresponding PUSCH / PUSCH on the UE-specific search space, and dedicated PUCCH resources.

10. The communication method as described in claim 7, characterized in that, The primary L1 Tx / Rx configuration and the secondary L1 Tx / Rx configuration are associated with the same TRP index or different TRP indexes, respectively.

11. The communication method as described in claim 1, characterized in that, When the at least one L1 Tx / Rx configuration includes multiple L1 transmit or receive configurations, the second configuration indicates at least one applicable L1 transmit or receive configuration among the multiple L1 Tx / Rx configurations.

12. A communication device, comprising: A transceiver is used for wireless communication during operation; as well as A processor, communicatively coupled to the transceiver, enables the processor to perform the following operations during operation: The transceiver receives at least one Layer 1 transmission or L1 Tx / Rx configuration associated with at least one source reference signal and at least one parameter; The transceiver receives a second configuration indicating whether the at least one L1 Tx / Rx configuration is applicable to a target reference signal or a target channel. as well as When the second configuration indicates that the at least one L1 transmission or reception configuration is applicable to the target reference signal or target channel, the target reference signal or target channel is transmitted or received through the transceiver based on the at least one parameter.

13. The communication device as claimed in claim 12, characterized in that, The at least one source reference signal includes a Transmit Receive Point Reference Signal (TRP-RS), wherein the target reference signal or target channel includes at least one of the following: Physical Downlink Shared Channel (PDSCH) Demodulation Reference Signal (DM-RS), Physical Downlink Control Channel (PDCCH) DM-RS, Channel State Information Reference Signal (CSI-RS), Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), and Sound Reference Signal (SRS).

14. The communication device as claimed in claim 12, characterized in that: The at least one L1 Tx / Rx configuration is received via at least one of the following: Radio Resource Control (RRC) signaling, Media Access Control-Control Unit (MAC-CE), and Downlink Control Information (DCI); or The second configuration is received via at least one of the following: RRC signaling and DCI.

15. The communication device as claimed in claim 12, characterized in that, The at least one parameter includes at least one of the following: downlink DL-related parameters and uplink UL-related parameters, wherein: The DL-related parameters include the quasi-co-located QCL assumption for DL ​​reception; or The UL-related parameters include at least one of the following: spatial relationships for UL transmission, transmission power control (PC) parameters, and timing advance (TA) parameters.

16. The communication device as claimed in claim 12, characterized in that: The first target reference signal or target channel associated with DL reception and the second target reference signal or target channel associated with UL transmission are indicated to share at least one L1 Tx / Rx configuration; or The first target reference signal or target channel and the second target reference signal or target channel are instructed to follow their respective L1 Tx / Rx configurations.

17. The communication device as claimed in claim 12, characterized in that, The at least one L1 Tx / Rx configuration includes a primary L1 Tx / Rx configuration and a secondary L1 Tx / Rx configuration, and during operation, the processor performs the following operations: By default, based on this main L1 Tx / Rx configuration, the target reference signal or target channel is transmitted or received through this transceiver; and Upon receiving a third configuration indicating the applicability of the secondary L1 Tx / Rx configuration, the transceiver transmits or receives the target reference signal or target channel based on the secondary L1 Tx / Rx configuration.

18. The communication device as claimed in claim 17, characterized in that: This third configuration is received via at least one of the following: RRC signaling and DCI; or The target reference signal or target channel is a DL or UL channel or signal dedicated to the user equipment (UE).

19. The communication device as claimed in claim 18, characterized in that, The UE-specific DL or UL channel or signal includes at least one of the following: PDCCH and corresponding PUSCH / PUSCH on the UE-specific search space, and dedicated PUCCH resources.

20. The communication device as claimed in claim 17, characterized in that, The primary L1 Tx / Rx configuration and the secondary L1 Tx / Rx configuration are associated with the same TRP index or different TRP indexes, respectively.

21. The communication device as claimed in claim 12, characterized in that, When the at least one L1 Tx / Rx configuration includes multiple L1 transmit or receive configurations, the second configuration indicates at least one applicable L1 transmit or receive configuration among the multiple L1 Tx / Rx configurations.

22. A communication method, comprising: The processor of the network node transmits at least one Layer 1 transmission or reception configuration associated with at least one source reference signal and at least one parameter; as well as The processor transmits a second configuration to indicate whether the at least one Layer 1 transmission or reception configuration is applicable to the target reference signal or the target channel.

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