Transmission configuration indication handover process in new radio mobile communications

Abstract

The device receives a transmission configuration indication (TCI) switching command from a wireless network to switch to a target TCI state. The device determines a time period based on whether a condition related to the target TCI state is met. Then, the device completes the switching to the target TCI state within the time period.

Description

[0001] This disclosure is part of a non-provisional patent claiming priority to U.S. Provisional Patent Application No. 62 / 842,635, filed on May 3, 2019, the entire contents of which are incorporated herein by reference. [Technical field]

[0002] The present disclosure relates generally to mobile communications, and more particularly to a Transmission Configuration Indication (TCI) handover procedure in New Radio (NR) mobile communications. [Background technology]

[0003] Unless otherwise indicated herein, the approaches described in this section are not prior art to the claims listed below and are not admitted to be prior art by inclusion in this section.

[0004] The transmission configuration indication (TCI) state is dynamically transmitted to the user equipment (UE) by the serving cell of the mobile network (e.g., the fifth generation (5G) / new radio (NR) mobile network), which includes multiple configurations, such as the quasi-co-location (QCL) relationship between the downlink (DL) reference signal (RS) (e.g., in one channel state information reference signal (CSI-RS) set) and the demodulation reference signal (DMRS) port of the physical downlink shared channel (PDSCH) of the UE's antenna. A list including up to a given number of TCI state configurations can be configured for the UE in the higher layer parameter PDSCH-Config to decode the PDSCH according to the detected physical downlink control channel (PDCCH) with downlink control information (DCI) for the UE and the serving cell. Each TCI state configuration may include multiple parameters for configuring a QCL relationship between one or two DL RSs and a DMRS port of a PDSCH, a DMRS port of a PDCCH, or a CSI-RS port of a CSI-RS resource.

[0005] For the 3rd Generation Partnership Project (3GPP) specifications for NR, it has been agreed that in order for a UE to perform a TCI switching procedure to switch from a current TCI state to a target TCI state, the target TCI state needs to be detected during the TCI state switch. However, how the network and UE can have the same understanding of when the updated TCI state should be applied has yet to be defined. [Summary of the invention]

[0006] The following summary is illustrative only and is not intended to be limiting in any way. That is, the following overview is provided to introduce the concepts, highlights, benefits, and advantages of the novel and non-obvious technologies described herein. Selected embodiments are further described in the detailed description below. Therefore, the following summary is neither intended to identify the essential features of the claimed subject matter nor to be used to determine the scope of the claimed subject matter.

[0007] The purpose of the present disclosure is to provide schemes, concepts, designs, techniques, methods and devices related to novel TCI switching procedures. Under various proposed schemes according to the present disclosure, the network and UE will have the same understanding of when to apply the updated TCI, thereby allowing the UE to receive data with appropriate beamforming.

[0008] In one aspect, a method may include a processor of an apparatus receiving a TCI switching command from a wireless network to switch to a target TCI state. The method may also include the processor determining a time period based on whether a condition related to the target TCI state is satisfied. The method may further include the processor switching to the target TCI state within the time period.

[0009] In one aspect, an apparatus may include a transceiver and a processor coupled to the transceiver. The transceiver may be configured to communicate with a wireless network. The processor may receive a TCI switching command to switch to a target TCI state from the wireless network via the transceiver. The processor may determine a time period based on whether a condition related to the target TCI state is met. Then, the processor may switch to the target TCI state within the time period.

[0010] It is worth noting that although the description provided herein may be in the context of certain radio access technologies, networks and network topologies (e.g., 5G / NR), the proposed concepts, schemes and any variants / derivatives thereof may be implemented in or for or by other types of radio access technologies, networks and network topologies, such as, but not limited to, LTE, LTE-Advanced, LTE-Advanced Pro, Internet of Things (IoT), Industrial IoT (IIoT) and Narrowband IoT (NB-IoT). Therefore, the scope of the present disclosure is not limited to the examples described herein.

Brief Description of the Drawings

[0011] The accompanying drawings are included to provide a further understanding of the present disclosure and are incorporated into and constitute a part of the present disclosure. The accompanying drawings illustrate embodiments of the present disclosure and together with the description are used to explain the mechanisms of the present disclosure. It is understood that the drawings are not necessarily drawn to scale, as some components may be shown out of proportion to the size in actual implementation in order to clearly illustrate the concepts of the present disclosure.

[0012] Figure 1 is a diagram of an example network environment in which various solutions and schemes according to the present disclosure may be implemented.

[0013] Figure 2 is a diagram of an example scenario according to an implementation of the present disclosure.

[0014] Figure 3 is a diagram of an example scenario according to an implementation of the present disclosure.

[0015] Figure 4 is a diagram of an example scenario according to an implementation of the present disclosure.

[0016] Figure 5 is a block diagram of an exemplary communication system according to an embodiment of the present disclosure.

[0017] Figure 6 is a flow chart of an example process according to an implementation of the present disclosure. [Specific implementation method]

[0018] Detailed embodiments and implementations of the claimed subject matter are disclosed herein. However, it should be understood that the disclosed embodiments and implementations are merely illustrations of the claimed subject matter that may be embodied in various forms. However, the present disclosure may be embodied in many different forms and should not be construed as being limited to the exemplary embodiments and implementations set forth herein. On the contrary, these exemplary embodiments and implementations are provided to make the description of the present disclosure thorough and complete and to fully convey the scope of the present disclosure to those skilled in the art. In the following description, details of well-known features and technologies may be omitted to avoid unnecessary confusion in the presented embodiments and implementations.

[0019] Overview

[0020] Embodiments according to the present disclosure relate to various technologies, methods, schemes and / or solutions related to the TCI switching process in mobile communications. According to the present disclosure, multiple possible solutions can be implemented individually or jointly. That is, although these possible solutions may be described separately below, two or more of these possible solutions may be implemented in one or another combination.

[0021] Figure 1 An example network environment 100 is shown in which various solutions and schemes according to the present disclosure may be implemented. Figure 2 , Figure 3 and Figure 4 Example scenarios 200, 300, and 400 according to embodiments of the present disclosure are shown respectively. Each of the scenarios 200, 300, and 400 can be implemented in the network environment 100. The following description of various proposed solutions refers to Figure 1 Figure 4 supply.

[0022] Reference Figure 1 , the network environment 100 may include a UE 110 in wireless communication with a wireless network 120 (e.g., a 5G NR mobile network). The UE 110 may be in wireless communication with the wireless network 120 via a base station or a network node 125 (e.g., an eNB, a gNB, or a Transmit-Receive Point (TRP)), and may perform a TCI switching procedure according to any of the schemes proposed in the present disclosure.

[0023] Under various proposed schemes according to the present disclosure, when one or more conditions are met, UE 110 may perform a TCI switching process to switch to a target TCI state. Such conditions may include, for example but not limited to, (1) the latest layer 1 (L1) or layer 3 (L3) RSRP (reference signal received power) report with a synchronization signal block (SSB) index has been transmitted to the wireless network 120 within a predetermined time before the UE 110 receives a TCI switching command from the wireless network 120. (2) The signal-to-noise ratio (SNR) level of a reference signal (RS) in a parameter set of the target TCI state is higher than a threshold level. (3) The parameter set of the target TCI state is indicated in a TCI activation table or list.

[0024] Under various proposed schemes according to the present disclosure, as described below, the TCI switching process may be performed, performed or otherwise implemented in multiple steps or stages. Under the proposed scheme, the UE 110 may send an L1 or L3 RSRP report to the network node 125 of the wireless network 120. Then, the UE 110 may receive a TCI switching command from the network node 125. In response, the UE 110 may determine a time period based on whether one or more of the above conditions are met. For example, the UE 110 may determine whether the latest L1 or L3 RSRP report with an SSB index is sent to the wireless network 120 within a predetermined time (e.g., 80ms, 160ms, or 320ms) before receiving the TCI switching command. Alternatively or additionally, the UE 110 may determine whether the SNR level of an RS in the parameter set of the target TCI state is higher than a threshold level (e.g., -3dB). Alternatively or additionally, the UE 110 may determine whether the parameter set of the target TCI state is indicated in a TCI activation table or list.

[0025] Under the proposed scheme, the time period may be a first time period (e.g., Y milliseconds) if all of the following conditions are met: (1) the latest L1 or L3 RSRP report with the SSB index is sent to the wireless network within a predetermined time before receiving the TCI switching command; (2) the SNR level of an RS in the parameter set of the target TCI state is higher than the threshold level; (3) the parameter set of the target TCI state is indicated in the TCI activation table or list. For DCI-based TCI switching, the first time period may be based on the duration of quasi-co-location (timeDurationForQCL). For MAC-based TCI switching, the first time period may be based on the hybrid automatic repeat request (HARQ) decoding time plus the medium access control (MAC) control element (CE) decoding time.

[0026] Under the proposed scheme, the time period may be a second time period (e.g., Y2 milliseconds) if one of the following conditions is met: (1) the latest L1 or L3 RSRP report with the SSB index is not sent to the wireless network within a predetermined time before receiving the TCI switching command, and (2) the SNR level of an RS in the parameter set of the target TCI state is lower than a threshold level. For DCI-based TCI switching, the second time period may be based on the duration of quasi-co-location (timeDurationForQCL) and the duration for performing receive (RX) beam optimization and fine synchronization based on SSB. For MAC-based TCI switching, the second time period may be based on the HARQ decoding time plus the MAC CE decoding time and the duration for performing RX beam optimization and fine synchronization based on SSB.

[0027] As an example, for DCI-based TCI switching (e.g., PDSCH), UE 110 may apply the target TCI state for a time period represented by the UE capability of Y=QCL-based duration (timeDurationForQCL). As another example, for MAC-based TCI switching (e.g., PDCCH), UE 110 may apply the target TCI state for a time period represented by Y=N1+a milliseconds, where N1 represents the HARQ decoding time and a represents the MAC CE decoding time. As yet another example, for RRC-based TCI switching, UE 110 may apply the target TCI state for a time period represented by Y, where Y includes the duration period of the above-mentioned process of performing RX beam optimization and fine synchronization based on SSB. In such a case, UE 110 may first perform RX beam optimization and fine synchronization based on SSB, and then apply the target TCI state.

[0028] Reference Figure 2 In scenario 200, UE 110 may receive a TCI switching command from network node 125, the TCI switching command instructing UE 110 to switch from a current TCI state to a target TCI state. Therefore, in the case where the target TCI state is in a TCI activation table or list, UE 110 may determine that the conditions associated with switching to the target TCI state are met. For example, when an RS in the target TCI state is SSB#1 and the TCI activation table / list includes SSB#1, SSB#2, SSB#3, and SSB#4, UE 110 may determine that the conditions are met. For DCI-based TCI switching (e.g., for PDSCH), for RX beam #1, in the case where the SNR level of SSB#1 is higher than k dB, UE 110 may perform TCI switching within Y milliseconds after receiving the TCI switching command and apply a new (target) TCI state for PDSCH. As an example, k dB may be -3dB, -2dB, or 0dB, and Y=UE capability based on timeDurationForQCL. For RX beam #1, if the SNR level of the target TCL state is lower than k dB within Y milliseconds after receiving the TCI switching command, UE 110 may terminate the TCI switching process.

[0029] Reference Figure 3In scenario 300, UE 110 may receive a TCI switching command from network node 125, the TCI switching command instructing UE 110 to switch from a current TCI state to a target TCI state. Therefore, when UE 110 sends an L1 or L3 RSRP report corresponding to a target TCI state (e.g., SSB#1) using RX beam #1 within X milliseconds, UE 110 may determine that a condition related to switching to the target TCI state is met. For example, X milliseconds may be 80 milliseconds, 160 milliseconds, 320 milliseconds, or 1280 milliseconds. For MAC-based TCI switching (e.g., for PDCCH), for RX beam #1, when the SNR level of SSB#1 is higher than k dB, UE 110 may perform TCI switching and apply a new (target) TCI state (e.g., SSB#1) for PDSCH within Y milliseconds after receiving the TCI switching command. As an example, Y milliseconds=N1+a milliseconds. Here, N1 may represent a HARQ decoding time (e.g., 14 orthogonal frequency division multiplexing (OFDM) symbols), and a may represent a MAC CE decoding time (e.g., 3 milliseconds). For RX beam #1, if the SNR level of SSB #1 becomes lower than k dB after the latest L1 or L3 RSRP report on SSB #1 and Y milliseconds after receiving the TCI switching command, UE 110 may terminate the TCI switching process.

[0030] Reference Figure 4 In scenario 400, UE 110 may receive a TCI switching command from network node 125, the TCI switching command instructing UE 110 to switch from a current TCI state to a target TCI state. Therefore, in the case where UE 110 does not send an L1 or L3 RSRP report corresponding to a target TCI state (e.g., SSB#5) within X milliseconds and SSB#5 is not in a TCI activation table or list, UE 110 may determine that a condition for switching to a target TCI state is not met. For example, X milliseconds may be 80 milliseconds, 160 milliseconds, 320 milliseconds, or 1280 milliseconds. UE 110 may perform RX beam training and timing synchronization for SSB#5 within Y2 milliseconds (e.g., Y2=2 to 4 SSB periods). For MAC-based TCI switching (e.g., for PDCCH), for RX beam #1, if the SNR level of SSB #5 is higher than k dB, UE 110 may perform TCI switching and apply a new (target) TCI state (e.g., SSB #5) for PDCCH within Y2 milliseconds after receiving the TCI switching command. For RX beam #1, if the SNR level of SSB #5 is lower than k dB within Y2 milliseconds after receiving the TCI switching command, UE 110 may terminate the TCI switching process.

[0031] Illustrative Embodiments

[0032] Figure 5 An example system 500 having at least an example device 510 and an example device 520 according to an embodiment of the present disclosure is shown. Each of the device 510 and the device 520 can perform various functions to implement the schemes, techniques, processes and methods described herein related to the TCI switching process in NR mobile communication, including the various schemes described above with respect to various proposed designs, concepts, schemes and the following processes. For example, the device 510 can be an example implementation of the UE 110, and the device 520 can be an example implementation of the network node 125.

[0033] Each of the devices 510 and 520 may be part of an electronic device, which may be a network device or a UE (e.g., UE 110), such as a portable or mobile device, a wearable device, a wireless communication device, or a computing device. For example, each of the devices 510 and 520 may be implemented in a smart phone, a smart watch, a personal digital assistant, a digital camera, or a computing device such as a tablet calculator, a laptop calculator, or a notebook calculator. Each of the devices 510 and 520 may also be part of a machine-type device, which may be an IoT device such as a stationary or fixed device, a home device, a wired communication device, or a computing device. For example, each of the devices 510 and 520 may be implemented in a smart thermostat, a smart refrigerator, a smart door lock, a wireless speaker, or a home control center. When implemented in or as a network device, device 510 and / or device 520 may be implemented in a network node (e.g., network node 125) such as an eNB in ​​an LTE, LTE-Advanced, or LTE-Advanced Pro network, or a gNB or TRP in a 5G network, NR network, or IoT network.

[0034] In some embodiments, each of the apparatus 510 and the apparatus 520 may be implemented in the form of 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. In the above various schemes, each of the apparatus 510 and the apparatus 520 may be implemented in a network device or a UE or may be implemented as a network device or a UE. Each of the apparatus 510 and the apparatus 520 may include Figure 5At least some of those components shown, such as processor 512 and processor 522. Each of apparatus 510 and apparatus 520 may further include one or more other components (e.g., an internal power supply, a display device, and / or a user interface device) that are not relevant to the proposed solution of the present disclosure, and therefore, for the sake of simplicity and brevity, such components of apparatus 510 and apparatus 520 are not shown in the figure. Figure 5 It is shown in the figure and will not be described below.

[0035] In one aspect, each of the processors 512 and 522 may be implemented in the form of one or more single-core processors, one or more multi-core processors, one or more RISC processors, or one or more CISC processors. That is, even if the singular term "a processor" is used herein to refer to the processors 512 and 522, each of the processors 512 and 522 may include multiple processors in some embodiments and may include a single processor in other embodiments according to the present invention. In another aspect, each of the processors 512 and 522 may be implemented in the form of hardware (and optionally, firmware) having electronic components, which include, for example, 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 varactor diodes, which are configured and arranged to achieve specific purposes according to the present disclosure. In other words, in at least some embodiments, according to various embodiments, each of the processors 512 and 522 is a dedicated machine specially designed, arranged and configured to perform specific tasks, including those tasks related to the TCI switching process in NR mobile communications.

[0036] In some embodiments, the device 510 may also include a transceiver 516 coupled to the processor 512. The transceiver 516 may be capable of wirelessly transmitting and receiving data. In some embodiments, the device 520 may also include a transceiver 526 coupled to the processor 522. The transceiver 526 may include a transceiver capable of wirelessly transmitting and receiving data.

[0037] In some embodiments, the device 510 may further include a memory 514, which is coupled to the processor 512 and can be accessed by the processor 512 and store data therein. In some embodiments, the device 520 may further include a memory 524, which is coupled to the processor 522 and can be accessed by the processor 522 and store data therein. Each of the memory 514 and the memory 524 may include a type of random access memory (RAM), such as dynamic RAM (DRAM), static RAM (SRAM), thyristor RAM (T-RAM) and / or zero capacitor RAM (Z-RAM). Alternatively or additionally, each of the memory 514 and the memory 524 may include a type of read-only memory (ROM), such as mask ROM, programmable ROM (PROM), erasable programmable ROM (EPROM) and / or electrically erasable programmable ROM (EEPROM). Alternatively or additionally, each of memory 514 and memory 524 may include a type of non-volatile random access memory (NVRAM) such as flash memory, solid-state memory, ferroelectric RAM (FeRAM), magnetoresistive RAM (MRAM), and / or phase change memory.

[0038] Each of the devices 510 and 520 may be a communication entity capable of communicating with each other using various proposed schemes according to the present disclosure. For illustrative purposes and not limitation, the following description of the capabilities of the devices 510 and 520 is provided with the device 510 as a UE and the device 520 as a base station of a serving cell of a wireless network (e.g., a 5G / NR mobile network). It is worth noting that although the example implementations described below are provided in the context of a UE, they may be implemented in and performed by a base station. Therefore, although the following description of the example implementation is related to the device 510 as a UE (e.g., UE 110), it is also applicable to the device 520 as a network node or base station (e.g., gNB, TRP or eNodeB (e.g., network node 125) of a wireless network (e.g., wireless network 120) (e.g., a 5G NR mobile network).

[0039] Under the solution proposed according to the present disclosure, the processor 512 of the device 510 can receive a TCI switching command to switch to a target TCI state from a wireless network (e.g., the wireless network 120) via the transceiver 516 and via the device 520 as the network node 125. In addition, the processor 512 can determine a time period based on whether a condition related to the target TCI state is met. In addition, the processor 512 can complete the TCI switching process by switching to the target TCI state within the time period.

[0040] In some embodiments, when determining the time period based on whether a condition related to the target TCI state is met, the processor 512 may determine whether the latest L1 or L3 RSRP report with the SSB index has been sent to the wireless network a predetermined time before receiving the TCI switching command.

[0041] Alternatively or additionally, when determining the time period based on whether a condition related to the target TCI state is satisfied, the processor 512 may determine whether an SNR level of an RS in the parameter set of the target TCI state exceeds a threshold level.

[0042] Alternatively or additionally, when determining the time period based on whether a condition related to the target TCI state is satisfied, the processor 512 may determine whether a parameter set for the target TCI state is indicated in a TCI activation table or list.

[0043] In some embodiments, the time period may be a first time period when all of the following conditions are met: (1) the latest L1 or L3 RSRP report with the SSB index has been sent to the wireless network within a predetermined time before the TCI switch command is received. (2) the SNR level of an RS in the parameter set of the target TCI state is higher than a threshold level, and (3) the parameter set of the target TCI state is indicated in a TCI activation table or list.

[0044] In some implementations, for DCI-based TCI switching, the first time period may be based on a quasi-co-location duration (timeDurationForQCL).

[0045] In some embodiments, for MAC-based TCI switching, the first time period may be based on the HARQ decoding time plus the MAC CE decoding time.

[0046] In some embodiments, the time period may be a second time period if one of the following conditions is met: (1) the latest L1 or L3 RSRP report with the SSB index is not sent to the wireless network within a predetermined time before receiving the TCI switching command, or (2) the SNR level of an RS in the parameter set of the target TCI state is lower than a threshold level.

[0047] In some embodiments, for DCI-based TCI switching, the second time period may be based on a duration of quasi co-location (timeDurationForQCL) and a duration for performing RX beam optimization and fine synchronization based on SSB.

[0048] In some embodiments, for MAC-based TCI switching, the second time period may be based on the HARQ decoding time plus the MAC CE decoding time and the duration for performing RX beam optimization and fine synchronization based on SSB.

[0049] Illustrative Process

[0050] Figure 6 An example process 600 according to an embodiment of the present disclosure is shown. Process 600 may represent one aspect of implementing the various proposed designs, concepts, schemes, systems, and methods described above. More specifically, process 600 may represent one aspect of the proposed concepts and schemes related to the TCI switching process in NR mobile communications according to the present disclosure. Process 600 may include one or more operations, actions, or functions shown in one or more of blocks 610, 620, and 630. Although shown as discrete blocks, the various blocks of process 600 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. In addition, the blocks / sub-blocks of process 600 may be Figure 6 , or in other orders. In addition, one or more blocks / sub-blocks of process 600 may be repeatedly or iteratively performed. Process 600 may be implemented by or in apparatus 510 and apparatus 520 or any variation thereof. For illustrative purposes only and without limiting the scope, process 600 is described below in the case where apparatus 510 is a UE (e.g., UE 110) and apparatus 520 is a network node (e.g., network node 125) of a wireless network (e.g., wireless network 120 (e.g., 5G / NR mobile network)). Process 600 may start at block 610.

[0051] At 610, process 600 may include processor 512 of device 510 receiving a TCI switch command to switch to a target TCI state from a wireless network (eg, wireless network 120) via transceiver 516 and via device 520 as network node 125. Process 600 may proceed from 610 to 620.

[0052] At 620 , process 600 can include processor 512 determining a time period based on whether a condition associated with the target TCI state is satisfied. Process 600 can proceed from 620 to 630 .

[0053] At 630, process 600 can include processor 512 completing the switch to the target TCI state within the time period.

[0054] In some embodiments, when determining the time period based on whether a condition related to the target TCI state is met, process 600 may include processor 512 determining whether the latest L1 or L3 RSRP report with the SSB index has been sent to the wireless network within a predetermined time before receiving the TCI switching command.

[0055] Alternatively or additionally, when determining the time period based on whether a condition related to the target TCI state is satisfied, the process 600 may include the processor 512 determining whether an SNR level of an RS in the parameter set of the target TCI is higher than a threshold level.

[0056] Alternatively or additionally, when determining the time period based on whether a condition related to the target TCI state is satisfied, process 600 may include processor 512 determining whether a parameter set for the target TCI state is indicated in a TCI activation table or list.

[0057] In some embodiments, the time period may be a first time period if all of the following conditions are met: the latest L1 or L3 RSRP report with the SSB index has been sent to the wireless network within a predetermined time before the TCI switch command is received; (2) the SNR level of an RS in the parameter set of the target TCI state is higher than a threshold level, and (3) the parameter set of the target TCI state is indicated in a TCI activation table or list.

[0058] In some implementations, for DCI-based TCI switching, the first time period may be based on a quasi-co-location duration (timeDurationForQCL).

[0059] In some embodiments, for MAC-based TCI switching, the first time period may be based on the HARQ decoding time plus the MAC CE decoding time.

[0060] In some embodiments, the time period may be a second time period if one of the following conditions is met: (1) the latest L1 or L3 RSRP report with the SSB index is not sent to the wireless network within a predetermined time before receiving the TCI switching command, or (2) the SNR level of an RS in the parameter set of the target TCI state is lower than a threshold level.

[0061] In some embodiments, for DCI-based TCI switching, the second time period may be based on a duration of quasi co-location (timeDurationForQCL) and a duration for performing RX beam optimization and fine synchronization based on SSB.

[0062] In some embodiments, for MAC-based TCI switching, the second time period may be based on the HARQ decoding time plus the MAC CE decoding time and the duration for performing RX beam optimization and fine synchronization based on SSB.

[0063] Additional Notes

[0064] The subject matter described herein sometimes shows different components contained in or connected to different other components.It is to be understood that the architecture depicted in this way is only an example, and many other architectures that can actually implement the same function can be implemented.Conceptually, multiple components of any arrangement that implement the same function are effectively "associated" to achieve the desired function.Therefore, any two components combined to achieve a specific function can be regarded as "associated" with each other to achieve the desired function, without considering the architecture or intermediate components.Similarly, any two components so associated can also be regarded as "operably connected" or "operably coupled" to each other to achieve the desired function, and any two components that can be so associated can also be regarded as "operably coupled to each other" to achieve the desired function.Specific examples of operable coupling include, but are not limited to, physically pairable and / or physically interacting components and / or wirelessly interactive and / or wirelessly acting components and / or logically interactive and / or logically interactive components.

[0065] In addition, with respect to any plural and / or singular numbers used herein, those skilled in the art can convert the plural to the singular and / or the singular to the plural from the perspective of appropriate context and / or application. The various singular / plural elaborations herein are for clarity only.

[0066] In addition, those skilled in the art will understand that, in general, the terms used herein, especially in the appended claims, such as the body of the appended claims, are generally intended to be "open" terms, for example, the term "including" should be interpreted as "including but not limited to", the term "having" should be interpreted as "having at least", and the plural term "including" should be interpreted as "including but not limited to". Those skilled in the art will further understand that if a specific number is intended to be introduced into a claim recitation, such an intention will be explicitly stated in the claim, and in the absence of such a recitation, such an intention is absent. For example, to aid understanding, the following appended claims may contain the introductory phrases "at least one" and "one or more" to introduce claim recitations. However, the use of these phrases should not be interpreted as implying that a claim recitation introduced by the indefinite article "a" or "an" is limited to any particular claim containing only one such recitation, even if the same claim includes the introductory phrases "one or more" or "at least one", and indefinite articles such as "a" or "an", such as "a" and / or "an" should be interpreted as "at least one" or "one or more"; this interpretation also applies to the use of definite articles to introduce claim recitations. In addition, even if a specific number of introductory claim recitations is explicitly recited, one skilled in the art will recognize that such recitation should be interpreted as referring to at least the recited number, for example, the simple recitation "two recitations", without other modifiers, means at least two recitations, or two or more recitations. In addition, in those cases where the phrase "at least one of A, B, and C, etc." is used, such a construction is generally intended in the sense that one skilled in the art would understand the convention, for example, "a system having at least one of A, B, and C" includes but is not limited to having only A alone, B alone, C alone, A and B together, A and C together, B and C together, and / or A, B, and C together, etc., and in those cases where the phrase "at least one of A, B, or C, etc." is used, such a construction is generally intended in the sense that one skilled in the art would understand the convention, for example, "a system having at least one of A, B, or C" would include but is not limited to having only A alone, B alone, C alone, A and B together, A and C together, B and C together, and / or A, B, and C together, etc. Those skilled in the art will further understand that virtually any word and / or phrase presenting the separation of two or more alternative terms, whether appearing in the specification, claims or drawings, should be understood to include one of the terms, either of the terms, or both of the terms. For example, the phrase "A or B" will be understood to include the possibilities of "A" or "B" or "A and B".

[0067] It can be understood from the foregoing that various implementations of the present disclosure have been described herein for illustrative purposes, and various modifications may be made without departing from the scope and spirit of the present disclosure. Therefore, the various implementations disclosed herein are not intended to be limited to the true scope and spirit indicated by the appended claims.

Claims

1. A transmission configuration indication switching method, characterized in that: include: The processor of the device receives a transmission configuration indication switching command from the wireless network to switch to a target transmission configuration indication state; The processor determines a time period based on whether a condition related to the target transmission configuration indication state is satisfied; and The processor completes switching to the target transmission configuration indication state within the time period; The determining of the time period based on whether a condition related to the target transmission configuration indication state is satisfied includes: The processor determines that a condition related to the target transmission configuration indication state is satisfied when a layer 1 reference signal reception power report corresponding to the target transmission configuration indication state has been sent to the wireless network within a predetermined time before receiving the transmission configuration indication switching command, a signal-to-noise ratio level of a reference signal in a parameter set of the target transmission configuration indication state is higher than a threshold level, and the target transmission configuration indication state is indicated in a transmission configuration indication activation table or list.

2. The transmission configuration indication switching method according to claim 1, characterized in that: The layer 1 reference signal received power report corresponding to the target transmission configuration indication state is the latest layer 1 reference signal received power report with a synchronization signal block index.

3. The transmission configuration indication switching method according to claim 1, characterized in that: The indicating the target transmission configuration indication state in the transmission configuration indication activation table or list includes: a parameter set indicating the target transmission configuration indication state in the transmission configuration indication activation table or list.

4. The transmission configuration indication switching method according to claim 1, characterized in that: The time period is the first time period when the latest layer 1 reference signal received power report with a synchronization signal block index has been sent to the wireless network within a predetermined time before receiving the transmission configuration indication switching command, the signal-to-noise ratio level of a reference signal in the parameter set of the target transmission configuration indication state is higher than the threshold level, and the parameter set of the target transmission configuration indication state is indicated in the transmission configuration indication activation table or list.

5. The transmission configuration indication switching method according to claim 4, characterized in that: For a transmission configuration indication switching based on downlink control information, the first time period is based on a duration of quasi co-location.

6. The transmission configuration indication switching method according to claim 4, characterized in that: For a medium access control based transmission configuration indication switch, the first time period is based on a hybrid automatic repeat request decoding time plus a medium access control control element decoding time.

7. The transmission configuration indication switching method according to claim 1, characterized in that: The time period is the second time period when the latest layer 1 reference signal received power report with a synchronization signal block index is not sent to the wireless network within a predetermined time before receiving a transmission configuration indication switching command, or when the signal-to-noise ratio level of a reference signal in the parameter set of the target transmission configuration indication state is lower than a threshold level.

8. The transmission configuration indication switching method according to claim 7, characterized in that: For a transmission configuration indication switching based on downlink control information, the second time period is based on a duration of quasi co-location and a duration for performing receive beam optimization and fine synchronization based on a synchronization signal block.

9. The transmission configuration indication switching method according to claim 7, characterized in that: For medium access control-based transmission configuration indication switching, the second time period is based on a hybrid automatic repeat request decoding time plus a medium access control control element decoding time and a duration for performing receive beam optimization and fine synchronization based on a synchronization signal block.

10. An electronic device, characterized in that: include: a transceiver configured to communicate with a wireless network; and A processor, coupled to the transceiver and configured to perform the following operations: receiving, via the transceiver, from the wireless network a transmission configuration indication switching command for switching to a target transmission configuration indication state; determining a time period based on whether a condition related to the target transmission configuration indication state is satisfied; and Complete switching to the target transmission configuration indication state within the time period; The determining of the time period based on whether a condition related to the target transmission configuration indication state is satisfied includes: The processor determines that a condition related to the target transmission configuration indication state is satisfied when a layer 1 reference signal reception power report corresponding to the target transmission configuration indication state has been sent to the wireless network within a predetermined time before receiving the transmission configuration indication switching command, a signal-to-noise ratio level of a reference signal in a parameter set of the target transmission configuration indication state is higher than a threshold level, and the target transmission configuration indication state is indicated in a transmission configuration indication activation table or list.

11. The electronic device according to claim 10, characterized in that: The layer 1 reference signal received power report corresponding to the target transmission configuration indication state is the latest layer 1 reference signal received power report with a synchronization signal block index.

12. The electronic device according to claim 10, characterized in that: The indicating the target transmission configuration indication state in the transmission configuration indication activation table or list includes: a parameter set indicating the target transmission configuration indication state in the transmission configuration indication activation table or list.

13. The electronic device according to claim 10, characterized in that: The time period is the first time period when the latest layer 1 reference signal received power report with a synchronization signal block index has been sent to the wireless network within a predetermined time before receiving the transmission configuration indication switching command, the signal-to-noise ratio level of a reference signal in the parameter set of the target transmission configuration indication state is higher than the threshold level, and the parameter set of the target transmission configuration indication state is indicated in the transmission configuration indication activation table or list.

14. The electronic device according to claim 13, characterized in that: For a transmission configuration indication switching based on downlink control information, the first time period is based on a duration of quasi co-location.

15. The electronic device according to claim 13, characterized in that: For a medium access control based transmission configuration indication switch, the first time period is based on a hybrid automatic repeat request decoding time plus a medium access control control element decoding time.

16. The electronic device according to claim 10, characterized in that: The time period is the second time period when the latest layer 1 reference signal received power report with a synchronization signal block index is not sent to the wireless network within a predetermined time before receiving a transmission configuration indication switching command, or when the signal-to-noise ratio level of a reference signal in the parameter set of the target transmission configuration indication state is lower than a threshold level.

17. The electronic device according to claim 16, characterized in that: For a transmission configuration indication switching based on downlink control information, the second time period is based on a duration of quasi co-location and a duration for performing receive beam optimization and fine synchronization based on a synchronization signal block.

18. The electronic device according to claim 16, characterized in that: For medium access control-based transmission configuration indication switching, the second time period is based on a hybrid automatic repeat request decoding time plus a medium access control control element decoding time and a duration for performing receive beam optimization and fine synchronization based on a synchronization signal block.

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