Terminal, system and method for performing channel state information (CSI) report activation or deactivation procedure

Abstract

A terminal may include a receiver configured to receive a plurality of information parameters indicating a cell group (CG) configuration, a cell configuration corresponding to a candidate cell in the CG, and a channel state information (CSI) reporting configuration for the candidate cell in the CG. The terminal may include a processor configured to determine, based on the information parameter, a plurality of indicators identifying the CG, the candidate cell in the CG, and a plurality of CSI reports for the candidate cell in the CG. The processor may be configured to perform a CSI report activation / deactivation procedure that indicates a CSI report to be activated or deactivated for the candidate cell in the CG based on the indicator.

Description

Technical Field

[0001] This application relates to wireless devices and wireless networks, including devices, circuits, and methods for performing channel state information (CSI) reporting procedures, where CSI reporting is activated or deactivated for one or more candidate cells in a cell group (CG). Background Art

[0002] The use of wireless communication systems is growing rapidly. In recent years, wireless devices such as smart phones and tablet computers have become increasingly sophisticated. In addition to supporting phone calls, many mobile devices now also provide access to the Internet, email, text messaging, and navigation using the Global Positioning System (GPS), and are capable of operating complex applications that utilize these functions. Additionally, there are many different wireless communication technologies and wireless communication standards. Some examples of wireless communication standards include GSM, UMTS (e.g., associated with the WCDMA or TD-SCDMA air interface), LTE, LTE-Advanced (LTE-A), HSPA, 3GPP2 CDMA2000 (e.g., 1xRTT, 1xEV-DO, HRPD, eHRPD), IEEE 802.11 (WLAN or Wi-Fi), and Bluetooth TM and so on.

[0003] The introduction of an increasing number of features and functions in wireless communication devices has also created a continuing need for improved wireless communication and improved wireless communication devices. To increase coverage and better serve the increasing demands and scope of the intended uses of wireless communication, in addition to the above communication standards, there are also wireless communication technologies being developed, including fifth-generation (5G) standards and New Radio (NR) communication technologies. Therefore, there is a need to improve the areas that support such development and design. Summary of the Invention

[0004] According to one or more embodiments, a terminal includes a receiver configured to receive a plurality of information parameters indicating a cell group (CG) configuration, a cell configuration corresponding to a candidate cell in the CG, and a channel state information (CSI) reporting configuration for the candidate cell in the CG. Additionally, the terminal includes a processor configured to determine, based on the information parameters, a plurality of indicators that identify the CG, the candidate cell in the CG, and a plurality of CSI reports for the candidate cell in the CG. The processor is configured to perform a CSI reporting activation / deactivation procedure that, based on the indicators, indicates which CSI reports for the candidate cell in the CG are to be activated or deactivated.

[0005] The techniques described herein can be implemented in and / or used with multiple different types of devices, including but not limited to any one of cellular phones, wireless devices, tablet computers, wearable computing devices, portable media players, and various other computing devices.

[0006] This Summary is intended to provide a brief overview of some of the subject matter described in this document. Accordingly, it should be understood that the above features are merely examples and should not be construed in any way as narrowing the scope or essence of the subject matter described herein. Other features, aspects, and advantages of the subject matter described herein will become apparent from the following Detailed Description, Drawings, and Claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] A better understanding of the subject matter can be obtained when the following detailed description of the various aspects is considered in conjunction with the following drawings:

[0008] Figure 1 An example wireless communication system is illustrated in accordance with some aspects.

[0009] Figure 2 An example block diagram of a UE is illustrated in accordance with some aspects.

[0010] Figure 3 An example block diagram of a BS is illustrated in accordance with some aspects.

[0011] Figure 4 An example block diagram of wireless communication circuitry is illustrated in accordance with some aspects.

[0012] Figure 5 is a code example for configuring a channel state information (CSI) report activation / deactivation procedure in accordance with some aspects.

[0013] Figure 6 is a table illustrating examples of signaling techniques in a CSI report activation / deactivation procedure in accordance with some aspects.

[0014] Figure 7 is a table illustrating examples of signaling techniques in a CSI report activation / deactivation procedure in accordance with some aspects.

[0015] Figure 8 is a code example for performing a CSI report activation / deactivation procedure in accordance with some aspects.

[0016] Figure 9 is a diagram illustrating examples of signaling techniques in a CSI report activation / deactivation procedure in accordance with some aspects.

[0017] Figure 10FIG. is an example diagram illustrating signaling format techniques in a CSI report activation / deactivation procedure according to some aspects.

[0018] Figure 11 FIG. is a flow chart detailing a method of performing a CSI report activation / deactivation procedure according to some aspects.

[0019] Although the features described herein may be susceptible to various modifications and alternative forms, specific aspects thereof are shown by way of example in the drawings and described in detail herein. However, it should be understood that the drawings and detailed description thereof are not intended to be limiting to the particular forms disclosed, but on the contrary, are intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the subject matter as defined by the appended claims. DETAILED DESCRIPTION

[0020] Mobile services that require low latency and high reliability performance (i.e., ultra-reliable low-latency communication (URLLC)) need to be studied. The evolution of 5G and New Radio (NR) standards requires continuous enhancement of the mobility robustness performance for these challenging scenarios. In one or more embodiments, inter-cell beam management (ICBM) in 5G NR is enhanced to allow full flexibility in handover operations across multiple layers. In one or more embodiments, the present disclosure relates to the configuration design of layer 1 (L1) measurements and channel state information (CSI) reports for candidate cells for deactivation, which are configured to address L1 / layer 2 (L2)-based handover operations. In this regard, the embodiments discussed herein improve the ICBM framework to support L1 / L2 inter-cell mobility for intra-DU, intra-frequency, and inter-frequency operations. In other embodiments, the present disclosure relates to improving the configuration of CSI reports in ICBM.

[0021] According to one or more embodiments, a user equipment (UE) device or terminal communicating with other terminals (other wireless communication devices, network devices, UE devices, and / or base station (BS) devices) may perform radio transmissions including the low-latency and high-reliability performance operations described in the present disclosure. L1 enhancements for ICBM may include improvements in L1 measurements, L1 reports, and L1 / L2 beam indications. In some embodiments, ICBM utilizes CSI measurements to initiate L1-based measurements. Additionally, synchronization signal blocks (SSBs) support intra-frequency and / or inter-frequency L1 measurements.

[0022] L1 measurements can be classified into different reported measurement types, such as intra-frequency, inter-frequency, inter-system, traffic, quality, and internal measurements of the UE device. In L1 measurements, the UE device can be configured with CSI reference signals (RSs), SSBs, or CSI-RSs and SSB resources. The measurements can be performed on the resources configured for L1-RSRP measurement within the active bandwidth part (BWP) for the serving cell (i.e., the PCell, PSCell, or SCell).

[0023] In one or more embodiments, the UE device can be configured for L1 measurements of multiple cells in a cell group (CG). The UE device can configure L1 measurements upon receiving a plurality of information parameters, the plurality of information parameters including an indicator of CG configuration, a plurality of cell configurations corresponding to one or more candidate cells in the CG, and CSI report configurations for the candidate cells in the CG. In some embodiments, a plurality of indicators are used to identify the CG, candidate cells in the CG, and a plurality of CSI reports for the candidate cells in the CG based on the information parameters. The UE device can perform a CSI report activation / deactivation procedure that indicates, based on the indicator, which CSI reports of the candidate cells in the CG are to be activated or deactivated.

[0024] In one or more embodiments, the UE device can be configured to receive a cell handover command that triggers a cell handover operation in which communication with the UE device is switched from the current serving cell to one of the candidate cells. In this regard, the UE device can perform the cell handover operation according to the CG configuration, cell configuration, or CSI report configuration. In some embodiments, the CSI report activation / deactivation procedure includes activating a CSI resource set associated with the CSI report configuration.

[0025] The following is a glossary of terms that can be used in this disclosure:

[0026] Memory medium – Any of various types of non-transitory memory devices or storage devices. The term “memory medium” is intended to include installation media (e.g., CD-ROM, floppy disk, or magnetic tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Rambus RAM), non-volatile memory such as Flash, magnetic media (e.g., hard disk drive or optical storage device; registers or other similar types of memory elements). Memory medium may also include other types of non-transitory memory or combinations thereof. Further, the memory medium may be located in a first computer system that executes a program, or may be located in a different second computer system that is connected to the first computer system via a network such as the Internet. In the latter instance, the second computer system may provide program instructions to the first computer for execution. The term “memory medium” may include two or more memory media that may reside at different locations (e.g., in different computer systems connected via a network). The memory medium may store program instructions (e.g., embodied as a computer program) that may be executed by one or more processors.

[0027] Carrier medium – The memory medium as described above and physical transmission media such as buses, networks, and / or other physical transmission media that convey signals such as electrical signals, electromagnetic signals, or digital signals.

[0028] Programmable hardware element - Includes various hardware devices that include a plurality of programmable function blocks connected via programmable interconnects. Examples include FPGA (Field Programmable Gate Array), PLD (Programmable Logic Device), FPOA (Field Programmable Object Array), and CPLD (Complex PLD). The programmable function blocks can range from fine-grained (combinational logic or look-up tables) to coarse-grained (arithmetic logic units or processor cores). Programmable hardware elements may also be referred to as “configurable logic components”.

[0029] User Equipment (UE) (also referred to as “user device”, “UE device”, or “terminal”) – Any of various types of computer systems or devices that are mobile or portable and perform wireless communication. Examples of UE devices include mobile phones or smartphones (e.g., iPhone TM , Android TM -based phones), portable gaming devices (e.g., Nintendo Switch TM , Nintendo DS TM , PlayStation Vita TM , PlayStation Portable TM , Gameboy AdvanceTM , iPhone TM ), laptop computers, wearable devices (e.g., smartwatches, smart glasses), PDAs, portable Internet devices, music players, data storage devices, other handheld devices, in-vehicle infotainment (IVI), in-vehicle entertainment (ICE) devices, instrument clusters, head-up display (HUD) devices, on-board diagnostic (OBD) devices, dashboard mobile equipment (DME), mobile data terminals (MDT), electronic engine management systems (EEMS), electronic / engine control units (ECU), electronic / engine control modules (ECM), embedded systems, microcontrollers, control modules, engine management systems (EMS), networked or “smart” home appliances, machine type communication (MTC) devices, machine-to-machine (M2M) and Internet of Things (IoT) devices, etc. Generally speaking, the terms “UE” or “UE device” or “terminal” or “user equipment” can be broadly defined to cover any electronic, computing, and / or telecommunications device (or combination of devices) that is easily transportable by a user (or vehicle) and capable of wireless communication.

[0030] Wireless device—any one of various types of computer systems or devices that perform wireless communication. A wireless device can be portable (or mobile), or it can be stationary or fixed in a location. A UE is an example of a wireless device.

[0031] Communication device—any one of various types of computer systems or devices that perform communication, where the communication can be wired or wireless. A communication device can be portable (or mobile), or it can be stationary or fixed in a location. A wireless device is an example of a communication device. A UE is another example of a communication device.

[0032] Base Station – The term “base station”, “radio base station” or “radio station” has the full scope of its ordinary meaning and includes at least a radio communication station that is installed at a fixed location and is used for communication as part of a wireless telephone system or radio system. For example, if a base station is implemented in the context of LTE, it may alternatively be referred to as an “eNodeB” or “eNB”. If a base station is implemented in the context of 5G NR, it may alternatively be referred to as a “gNodeB” or “gNB”. Although certain aspects are described in the context of LTE or 5G NR, references to “eNB”, “gNB”, “nodeB”, “base station” and “NB” etc. may also refer to one or more radio nodes that serve a cell to provide a wireless connection between a user equipment and a generally wider network, and the concepts discussed are not limited to any particular radio technology. Although certain aspects are described in the context of LTE or 5G NR, references to “eNB”, “gNB”, “nodeB”, “base station” and “NB” etc. are not intended to limit the concepts discussed herein to any particular radio technology, and the concepts discussed may apply to any wireless system.

[0033] Node – The term “node” or “radio node” as used herein may refer to one or more devices associated with a cell that provides a wireless connection between a user equipment and a generally wired network.

[0034] Processing Element (or Processor) – refers to various elements or combinations of elements that are capable of performing functions in a device such as a user equipment or a cellular network device. Processing elements may include, for example: a processor and associated memory, portions or circuits of individual processor cores, entire processor cores, separate processors, processor arrays, circuits such as application specific integrated circuits (ASICs), programmable hardware elements such as field programmable gate arrays (FPGAs), and any of various combinations of the foregoing.

[0035] Channel - A medium used to convey information from a transmitter to a receiver. It should be noted that since the characteristics of the term “channel” can vary according to different wireless protocols, the term “channel” as used herein can be considered to be used in a manner that conforms to the standards of the type of device to which the term usage refers. In some standards, the channel width can be variable (e.g., depending on device capabilities and frequency band conditions, etc.). For example, LTE can support an expandable channel bandwidth from 1.4 MHz to 20 MHz. WLAN channels can be 22 MHz wide, while Bluetooth channels can be 1 MHz wide. Other protocols and standards may include different definitions of channels. In addition, some standards may define and use multiple types of channels (e.g., different channels for uplink or downlink and / or different channels for different purposes such as data and control information, etc.).

[0036] Band - The term "band" has the full range of its ordinary meaning and includes at least a segment of a spectrum (e.g., radio frequency spectrum) in which channels are used or set aside for the same purpose.

[0037] Configured to - Various components may be described as "configured to" perform one or more tasks. In such contexts, "configured to" is a broad statement generally meaning "having" the "structure" to perform one or more tasks during operation. Thus, even when the component is not currently performing a task, the component can be configured to perform the task (e.g., a set of electrical conductors can be configured to electrically connect a module to another module even when the two modules are not connected). In some contexts, "configured to" can be a broad statement generally meaning "having" the "circuitry" to perform one or more tasks during operation. Thus, even when the component is not currently powered on, the component can be configured to perform the task. Generally, the circuitry forming the structure corresponding to "configured to" may include hardware circuitry.

[0038] For ease of description, various components may be described as performing one or more tasks. Such descriptions should be interpreted as including the phrase "configured to". Components described as configured to perform one or more tasks are expressly intended not to invoke the §112(f) interpretation of 35 U.S.C. for that component.

[0039] Example Wireless Communication System

[0040] Now turning to Figure 1 , a simplified example of a wireless communication system in accordance with some aspects is illustrated. Note that Figure 1 the system of is only a non - limiting example of possible systems, and the features of the present disclosure may be implemented in any of a variety of systems as needed.

[0041] As shown, the example wireless communication system includes a base station 102A that communicates with one or more user equipments 106A, 106B through 106Z via a transmission medium. Each of the user equipments may be referred to herein as a "user equipment" (UE). Thus, the user equipment 106 is referred to as a UE or a UE device.

[0042] The base station (BS) 102A may be a transceiver base station (BTS) or a cell site (e.g., a "cellular base station") and may include hardware enabling wireless communication with UEs 106A through 106Z.

[0043] The communication area (or coverage area) of a base station may be referred to as a "cell". Base station 102A and UE 106 may be configured to communicate via a transmission medium using any one of various radio access technologies (RATs), which are also referred to as wireless communication technologies or telecommunication standards, such as GSM, UMTS (associated with, for example, the WCDMA or TD-SCDMA air interfaces), LTE, LTE-A, 5G NR, HSPA, 3GPP2 CDMA2000. Note that if base station 102A is implemented in the context of LTE, the base station may alternatively be referred to as an 'eNodeB' or 'eNB'. Note that if base station 102A is implemented in the context of 5G NR, the base station may alternatively be referred to as a "gNodeB" or "gNB".

[0044] In some aspects, UE 106 may be an IoT UE, which may include a network access layer designed for low-power IoT applications that utilize short-term UE connections. The IoT UE may utilize technologies such as M2M or MTC to exchange data with an MTC server or device via a public land mobile network (PLMN), proximity services (ProSe), or device-to-device (D2D) communication, a sensor network, or an IoT network. The M2M or MTC data exchange may be machine-initiated data exchange. The IoT network describes interconnected IoT UEs, which may include uniquely identifiable embedded computing devices (within the Internet infrastructure) with short-lived connections. As an example, vehicle-to-everything (V2X) may utilize the ProSe feature using the SL interface to communicate directly between devices. The IoT UE may also execute background applications (e.g., keep-alive messages, status updates, etc.) to facilitate the connection to the IoT network.

[0045] As shown, UEs 106 (such as UE 106A and UE 106B) may directly exchange communication data via the SL interface 108. The SL interface 108 may be a PC5 interface, which includes one or more physical channels, including but not limited to the physical side-link shared channel (PSSCH), the physical side-link control channel (PSCCH), the physical side-link broadcast channel (PSBCH), and the physical side-link feedback channel (PSFCH).

[0046] In a V2X scenario, one or more of the base stations 102 can be or act as a roadside unit (RSU). The term RSU can refer to any transportation infrastructure entity for V2X communication. The RSU can be implemented in or by a suitable radio node or a stationary (or relatively stationary) UE, where the RSU implemented in or by the UE can be referred to as a "UE-type RSU", the RSU implemented in or by the eNB can be referred to as an "eNB-type RSU", the RSU implemented in or by the gNB can be referred to as a "gNB-type RSU", and so on. In one example, the RSU is a computing device coupled to a radio frequency circuit located on the roadside, and the computing device provides connectivity support to passing vehicle UEs (vUEs). The RSU can also include an internal data storage circuit for storing intersection map geometries, traffic statistics, media, and applications / software for sensing and controlling ongoing vehicle and pedestrian traffic. The RSU can operate on the 5.9 GHz intelligent transportation system (ITS) band to provide extremely low latency communication required for high-speed events, such as collision avoidance and traffic warnings. Additionally or alternatively, the RSU can operate on the cellular V2X band to provide the aforementioned low latency communication and other cellular communication services. Additionally or alternatively, the RSU can operate as a Wi-Fi hotspot (2.4 GHz band) and / or provide connectivity to one or more cellular networks to provide uplink and downlink communication. Some or all of the radio frequency circuits in the computing device and the RSU can be encapsulated in a weatherpr23 package suitable for outdoor installation and can include a network interface controller to provide a wired connection (e.g., Ethernet) to a traffic signal controller and / or a backhaul network.

[0047] As shown, the base station 102A can also be equipped to communicate with the network 100 (e.g., the core network of a cellular service provider, a telecommunications network (such as a public switched telephone network (PSTN) and / or the Internet), and various possibilities). Thus, the base station 102A can facilitate communication between user devices and / or between a user device and the network 100. Specifically, the cellular base station 102A can provide the UE 106 with various telecommunications capabilities, such as voice, SMS, and / or data services.

[0048] The base station 102A and other similar base stations operating according to the same or different cellular communication standards (such as the base stations 102B to 102N) can thus be provided as a network of cells that can provide continuous or nearly continuous overlapping services to the UEs 106A to 106Z and similar devices over a geographical area via one or more cellular communication standards.

[0049] Thus, although the base station 102A can act asFigure 1 the "serving cell" of the illustrated UEs 106A through 106Z, but each UE 106 may also be capable of receiving signals (and potentially being within its communication range) from one or more other cells, which may be provided by base stations 102B through 102Z and / or any other base stations, and such one or more other cells may be referred to as "neighboring cells". Such cells may also be capable of facilitating communication between user devices and / or between user devices and network 100. Such cells may include "macro" cells, "micro" cells, "pico" cells, and / or any of a variety of other granularities of cells that provide a service area size. For example, in Figure 1 the illustrated base stations 102A and 102B may be macro cells, while base station 102Z may be a micro cell. Other configurations are possible.

[0050] In some aspects, base station 102A may be a next-generation base station (e.g., a 5G New Radio (5GNR) base station or "gNB"). In some aspects, the gNB may be connected to a legacy Evolved Packet Core (EPC) network and / or connected to an NR Core (NRC) / 5G Core (5GC) network. Additionally, a gNB cell may include one or more Transmission and Reception Points (TRPs). Further, a UE capable of operating according to 5GNR may be connected to one or more TRPs within one or more gNBs. For example, base station 102A and one or more other base stations 102 may support joint transmission such that UE 106 may be capable of receiving transmissions from multiple base stations (and / or multiple TRPs provided by the same base station). For example, as Figure 1 illustrated, both base station 102A and base station 102C are shown serving UE 106A.

[0051] Note that UE 106 may be capable of communicating using multiple wireless communication standards. For example, in addition to at least one of the cellular communication protocols discussed in the above definitions, UE 106 may also be configured to communicate using wireless networking (e.g., Wi-Fi) and / or peer-to-peer wireless communication protocols (e.g., Bluetooth and Wi-Fi Direct, etc.). If desired, UE 106 may additionally or alternatively be configured to communicate using one or more Global Navigation Satellite Systems (GNSS) (e.g., GPS or GLONASS), one or more mobile television broadcast standards (e.g., ATSC-M / H), and / or any other wireless communication protocol. Other combinations of wireless communication standards (including more than two wireless communication standards) are possible.

[0052] In one or more embodiments, UE 106 may be a device with cellular communication capabilities, such as a mobile phone, a handheld device, a computer, a laptop, a tablet, a smartwatch, or other wearable device, or virtually any type of wireless device.

[0053] The UE 106 may include a processor (processing element) configured to execute program instructions stored in a memory. The UE 106 may perform any of the method aspects described herein by executing such stored instructions. Alternatively or in addition, the UE 106 may include programmable hardware elements such as an FPGA (Field Programmable Gate Array), an integrated circuit, and / or any of various other possible hardware components configured to perform (e.g., individually or in combination) any of the method aspects described herein or any part of any of the method aspects described herein.

[0054] The UE 106 may include one or more antennas for communicating using one or more wireless communication protocols or technologies. In some aspects, the UE 106 may be configured to communicate using, for example, NR or LTE using at least some shared radio components. As an additional possibility, the UE 106 may be configured to communicate using CDMA2000 (1xRTT / 1xEV-DO / HRPD / eHRPD) or LTE using a single shared radio component and / or using GSM or LTE using a single shared radio component. The shared radio component may be coupled to a single antenna or may be coupled to multiple antennas (e.g., for a multiple-input multiple-output (MIMO) configuration) for performing wireless communication. Generally, the radio component may include any combination of a baseband processor, analog RF signal processing circuitry (e.g., including filters, mixers, oscillators, and amplifiers, etc.), or digital processing circuitry (e.g., for digital modulation and other digital processing). Similarly, the radio component may use the foregoing hardware to implement one or more receive chains and transmit chains. For example, the UE 106 may share one or more portions of a receive chain and / or a transmit chain among multiple wireless communication technologies such as those discussed above.

[0055] In some aspects, the UE 106 may include separate transmit chains and / or receive chains (e.g., including separate antennas and other radio components) for each wireless communication protocol it is configured to communicate with. As another possibility, the UE 106 may include one or more radio components shared among multiple wireless communication protocols and one or more radio components uniquely used by a single wireless communication protocol. For example, the UE 106 may include shared radio components for communicating using either LTE or 5G NR (or either LTE or 1xRTT, or either LTE or GSM, and various possibilities), and separate radio components for communicating using each of Wi-Fi and Bluetooth. Other configurations are possible.

[0056] In some aspects, the downlink resource grid can be used for downlink transmission from any of the base stations in base station 102 to UE 106, and uplink transmission can utilize similar techniques. The grid can be a time-frequency grid, referred to as a resource grid or a time-frequency resource grid, which is the physical resources in the downlink in each time slot. For an orthogonal frequency division multiplexing (OFDM) system, such a time-frequency plane representation is a common practice, which makes radio resource selection intuitive. Each column and each row of the resource grid corresponds to an OFDM symbol and an OFDM subcarrier respectively. The duration of the resource grid in the time domain corresponds to a time slot in a radio frame. The smallest time-frequency unit in the resource grid is denoted as a resource element. Each resource grid can include a plurality of resource blocks, which describe the mapping of specific physical channels to resource elements. Each resource block includes a set of resource elements. Such resource blocks are used to convey several different physical downlink channels.

[0057] The physical downlink shared channel (PDSCH) can carry user data and higher layer signaling to UE 106. The physical downlink control channel (PDCCH) can carry information such as the transmission format and resource allocation related to the PDSCH channel. It can also notify UE 106 of the transmission format, resource allocation, and HARQ (hybrid automatic repeat request) information related to the uplink shared channel. Generally, downlink scheduling (assigning control and shared channel resource blocks to UEs within a cell) can be performed at any of the base stations in base station 102 based on the channel quality information fed back from any of the UEs in UE 106. Downlink resource allocation information can be transmitted on the PDCCH used for (e.g., assigned to) each UE in the UEs.

[0058] The PDCCH can use control channel elements (CCEs) to convey control information. Before being mapped to resource elements, the PDCCH complex-valued symbols can first be organized into quadruples, and then can be arranged using a sub-block interleaver for rate matching. One or more of these CCEs can be used to transmit each PDCCH, where each CCE can correspond to a set of nine four physical resource elements, referred to as a resource element group (REG). Four quadrature phase shift keying (QPSK) symbols can be mapped to each REG. Depending on the size of the downlink control information (DCI) and the channel conditions, one or more CCEs can be used to transmit the PDCCH. There can be four or more different PDCCH formats defined in LTE with different numbers of CCEs (e.g., aggregation levels, L = 1, 2, 4, or 8).

[0059] Beam reporting for L1 / L2-based cell handover in wireless communication

[0060] As described above, in some embodiments described herein, L1 enhancements for an ICBM may include improvements to L1 measurements, L1 reporting, and L1 / L2 beam indication. L1 measurements may be classified into different reported measurement types, such as intra-frequency, inter-frequency, inter-system, traffic, quality, and internal measurements of a UE device. In L1 measurements, one of the UEs 106 may be configured with CSI-RS, SSB, or both CSI-RS and SSB resources. The measurements may be performed on resources configured for L1-RSRP measurement within an active BWP for one of the other UEs 106 acting as a serving cell (i.e., a PCell, a PSCell, or an SCell).

[0061] For example, UE 106A may configure L1 measurements for some of the UEs 106B to 106Z acting as multiple cells in a CG. UE 106A may configure L1 measurements when receiving a plurality of information parameters (i.e., configuration parameters received via higher layer signaling), the plurality of information parameters (i.e., configuration parameters received via higher layer signaling) including an indicator of CG configuration, a plurality of cell configurations corresponding to one or more candidate cells in the CG, and CSI reporting configurations for candidate cells in the CG. The CG configuration may affect all of the UEs 106B to 106Z, while the cell configurations may be individual cell configurations for candidate UEs among the UEs 106B to 106Z. In addition, the CSI reporting configuration may establish reporting for CSI reports from candidate UEs.

[0062] In one or more embodiments, the plurality of indicators are used to identify a CG, candidate cells in the CG, and a plurality of CSI reports for candidate cells in the CG based on the information parameters. UE 106A may perform a CSI report activation / deactivation procedure that indicates, based on the indicator, which CSI reports for candidate cells in the CG are to be activated or deactivated.

[0063] In one or more embodiments, UE 106A may be configured to receive from network 100 a cell handover command that triggers a cell handover operation in which communication with the UE device is switched from a current serving cell (i.e., UE 106B) to one of the candidate cells (i.e., one of the UEs 106B to 106Z). In this regard, UE 106A may perform the cell handover operation according to the CG configuration, the individual cell configuration, or the CSI reporting configuration. In some embodiments, the CSI report activation / deactivation procedure includes activating a CSI resource set associated with the CSI reporting configuration.

[0064] As described above, the present disclosure enhances the CSI report activation / deactivation procedure to improve the beam-level mobility of UE 106A. Beam-level mobility does not require triggering explicit radio resource control (RRC) signaling. Beam-level mobility can occur within a cell or between cells (i.e., ICBM). For ICBM, UE 106A can receive or transmit UE-specific channels / signals via a total radiated power (TRP) associated with a physical cell ID (PCI) different from that of the serving cell, rather than UE-specific channels / signals being received via the TRP associated with the PCI of the serving cell. In this regard, network 100 can provide a measurement configuration to UE 106A via RRC signaling, which includes configurations, reports, and trigger states for SSB / CSI resources and resource sets for triggering channel and interference measurements and reports. In the case of ICBM, the measurement configuration includes SSB resources associated with a PCI different from that of the serving cell. In this regard, beam-level mobility is handled at a lower layer by physical layer and medium access control (MAC) layer control signaling, and RRC does not need to know which beam is being used at a given point in time.

[0065] SSB-based beam-level mobility is based on the SSB associated with the initial downlink (DL) BWP and can be configured for the initial DL BWP and DL BWPs that include the SSB associated with the initial DL BWP. For other DL BWPs, beam-level mobility can be performed based on CSI-RS. Beam-level mobility can be additionally configured in a manner described in 3GPP TS 38.300.

[0066] In one or more embodiments, for a CSI-RS resource set associated with a resource setting of a higher layer parameter (i.e., such as the information element resourceType) configured as "aperiodic", "periodic", or "semi-persistent", the higher layer parameter CSI-AperiodicTriggerStateList is used to configure the trigger state for reporting the setting (i.e., the reportConfigType configured as "aperiodic") and / or the resource setting for channel and / or interference measurements on one or more component carriers. For an aperiodic CSI reporting trigger, a single CSI trigger state set may be configured via higher layer signaling, where the CSI trigger state may be associated with any candidate DL BWP. In this case, it may not be desirable for UE 106A to receive more than one DCI with a non-zero CSI request per time slot. For the same aperiodic CSI-RS resource ID configured in multiple aperiodic CSI-RS resource sets with the same trigger offset in the same aperiodic trigger state, UE 106A may not be configured with different state IDs. The foregoing information elements and CSI-RS configurations may be additionally implemented in a manner described in 3GPP TS38.212, TS 38.214, and TS 38.331.

[0067] Example communication device

[0068] Figure 2 Illustrates an example simplified block diagram of a communication device 106 according to some aspects. Note that Figure 2 The block diagram of the communication device is only one example of a possible communication device. According to various aspects, in addition to other devices, the communication device 106 may be a UE device or terminal, a mobile device or mobile station, a wireless device or wireless station, a desktop computer or computing device, a mobile computing device (e.g., a laptop, notebook, or portable computing device), a tablet computer, and / or a combination of devices. As shown, the communication device 106 may include a set of components 200 configured to perform core functions. For example, the set of components may be implemented as a system-on-chip (SOC) that may include portions for various purposes. Alternatively, the set of components 200 may be implemented as separate components or groups of components for various purposes. The set of components 200 may be (e.g., communicatively; directly or indirectly) coupled to various other circuits of the communication device 106.

[0069] For example, the communication device 106 may include various types of memories (e.g., including NAND flash memory 210), input / output interfaces such as connector I / F 220 (e.g., for connecting to a computer system; docking station; charging station; input devices such as microphones, cameras, keyboards; output devices such as speakers; etc.), a display 260 that may be integrated with or external to the communication device 106, and wireless communication circuitry 230 (e.g., for LTE, LTE-A, NR, UMTS, GSM, CDMA2000, Bluetooth, Wi-Fi, NFC, GPS, etc.). In some aspects, the communication device 106 may include wired communication circuitry (not shown), such as a network interface card (e.g., for Ethernet connection).

[0070] The wireless communication circuitry 230 may be (e.g., communicatively; directly or indirectly) coupled to one or more antennas, such as antenna 235 as shown in the figure. The wireless communication circuitry 230 may include cellular communication circuitry and / or mid-short range wireless communication circuitry, and may include multiple receive chains and / or multiple transmit chains for receiving and / or transmitting multiple spatial streams, such as in a MIMO configuration.

[0071] In some aspects, as further described below, the cellular communication circuitry 230 may include one or more receive chains for multiple radio access technologies (RATs) (including and / or coupled to (e.g., communicatively; directly or indirectly) dedicated processors and / or radio components) (e.g., a first receive chain for LTE and a second receive chain for 5G NR). Additionally, in some aspects, the cellular communication circuitry 230 may include a single transmit chain that may switch between radio components dedicated to specific RATs. For example, a first radio component may be dedicated to a first RAT (e.g., LTE) and may communicate with a dedicated receive chain and a transmit chain shared with a second radio component. A second radio component may be dedicated to a second RAT (e.g., 5G NR) and may communicate with a dedicated receive chain and the shared transmit chain. In some aspects, the second RAT is capable of operating at millimeter wave frequencies. Since the operating frequency of millimeter wave systems is higher than the typical frequency in LTE systems, signals in the millimeter wave frequency range are severely attenuated due to environmental factors. To help address this attenuation issue, millimeter wave systems typically utilize beamforming and include more antennas compared to LTE systems. These antennas may be organized into antenna arrays or panels composed of individual antenna elements. These antenna arrays may be coupled to radio links.

[0072] The communication device 106 may also include one or more user interface elements and / or be configured to be used with one or more user interface elements.

[0073] The communication device 106 may also include one or more smart cards 245 (such as one or more universal integrated circuit cards (UICCs) 245), and the one or more smart cards include subscriber identity module (SIM) functionality.

[0074] As shown in the figure, the SOC 200 may include a processor 202 and a display circuit 204. The processor may execute program instructions of the communication device 106, and the display circuit may perform graphic processing and provide a display signal to the display 260. The processor 202 may also be coupled to a memory management unit (MMU) 240, and the memory management unit may be configured to receive addresses from the processor 202 and convert these addresses into locations in a memory (such as the memory 206, read-only memory (ROM) 250, NAND flash memory 210); and / or be coupled to other circuits or devices, such as the display circuit 204, wireless communication circuit 230, connector I / F 220, and / or the display 260. The MMU 240 may be configured to perform memory protection and page table translation or setup. In some aspects, the MMU 240 may be included as part of the processor 202.

[0075] As noted above, the communication device 106 may be configured to communicate using wireless and / or wired communication circuits. As described herein, the communication device 106 may include hardware and software components for implementing any of the various features and technologies described herein. The processor 202 of the communication device 106 may be configured to implement part or all of the features described herein (e.g., by executing program instructions stored on a memory medium). Alternatively (or in addition), the processor 202 may be configured as a programmable hardware element, such as a field programmable gate array (FPGA) or an application specific integrated circuit (ASIC). Alternatively (or in addition), in combination with one or more of the other components 200, 204, 206, 210, 220, 230, 240, 245, 250, 260, the processor 202 of the communication device 106 may be configured to implement part or all of the features described herein.

[0076] In addition, as described herein, the processor 202 may include one or more processing elements. Therefore, the processor 202 may include one or more integrated circuits (ICs) configured to perform the functions of the processor 202. In addition, each integrated circuit may include circuits (such as a first circuit, a second circuit, etc.) configured to perform the functions of the processor 202.

[0077] In addition, as described herein, the wireless communication circuit 230 may include one or more processing elements. In other words, one or more processing elements may be included in the wireless communication circuit 230. Accordingly, the wireless communication circuit 230 may include one or more integrated circuits (ICs) configured to perform the functions of the wireless communication circuit 230. In addition, each integrated circuit may include circuitry (e.g., a first circuit and a second circuit, etc.) configured to perform the functions of the wireless communication circuit 230.

[0078] Example Base Station

[0079] Figure 3 Illustrates an example block diagram of base station 102 according to some aspects. Note that, Figure 3 The base station being a non-limiting example of a possible base station. As shown, base station 102 may include a processor 304 that may execute program instructions for base station 102. The processor 304 may also be coupled to a memory management unit (MMU) 340 that may be configured to receive addresses from the processor 304 and translate those addresses into locations in a memory (e.g., memory 360 and read-only memory (ROM) 350); or coupled to other circuits or devices.

[0080] Base station 102 may include at least one network port 370. The network port 370 may be configured to couple to a telephone network and provide access to a plurality of devices (such as UE device 106) to the telephone network as described above in Figure 1 .

[0081] The network port 370 (or an additional network port) may also be configured to or alternatively be configured to couple to a cellular network, such as a core network of a cellular service provider. The core network may provide mobility-related services and / or other services to a plurality of devices (such as UE device 106). In some cases, the network port 370 may be coupled to the telephone network via the core network, and / or the core network may provide the telephone network (e.g., in addition to other UE devices served by the cellular service provider).

[0082] In some aspects, base station 102 may be a next-generation base station (e.g., a 5G New Radio (5G NR) base station or “gNB”). In such aspects, base station 102 may be connected to a legacy evolved packet core (EPC) network and / or connected to an NR core (NRC) / 5GC network. In addition, base station 102 may be considered a 5G NR cell and may include one or more transmission and reception points (TRPs). In addition, a UE capable of operating according to 5G NR may be connected to one or more TRPs within one or more gNBs.

[0083] Base station 102 may include at least one antenna 334 and may include multiple antennas. At least one antenna 334 may be configured to operate as a wireless transceiver and may also be configured to communicate with UE device 106 via radio component 330. Antenna 334 communicates with radio component 330 via communication link 332. Communication link 332 may be a receive link, a transmit link, or both. Radio component 330 may be configured to communicate via various wireless communication standards, which include 5G NR, LTE, LTE-A, GSM, UMTS, CDMA2000, and Wi-Fi, among others.

[0084] Base station 102 may be configured to perform wireless communication using multiple wireless communication standards. In some instances, base station 102 may include multiple radio components, which may enable base station 102 to communicate according to multiple wireless communication technologies. For example, as one possibility, base station 102 may include an LTE radio component for performing communication according to LTE and a 5G NR radio component for performing communication according to 5G NR. In this case, base station 102 may be able to operate as both an LTE base station and a 5G NR base station. When base station 102 supports millimeter wave, the 5G NR radio component may be coupled to one or more millimeter wave antenna arrays or panels. As another possibility, base station 102 may include a multi-mode radio component capable of performing communication according to any one of multiple wireless communication technologies (such as 5G NR and LTE, 5G NR and Wi-Fi, LTE and Wi-Fi, LTE and UMTS, LTE and CDMA2000, UMTS and GSM, etc.).

[0085] In addition, BS102 may include hardware and software components for implementing or supporting the implementation of the features described herein. Processor 304 of base station 102 may be configured to implement or support the implementation of part or all of the methods described herein (e.g., by executing program instructions stored on a memory medium). Alternatively, processor 304 may be configured as a programmable hardware element (such as a field programmable gate array (FPGA)), or an application specific integrated circuit (ASIC), or a combination thereof. Alternatively (or in addition), in combination with one or more of the other components 330, 332, 334, 340, 350, 360, 370, processor 304 of BS102 may be configured to implement or support the implementation of some or all of the features described herein.

[0086] In addition, as described herein, the processor 304 may include one or more processing elements. Accordingly, the processor 304 may include one or more integrated circuits (ICs) configured to perform the functions of the processor 304. In addition, each integrated circuit may include circuits (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of the processor 304.

[0087] In addition, as described herein, the radio component 330 may include one or more processing elements. Accordingly, the radio component 330 may include one or more integrated circuits (ICs) configured to perform the functions of the radio component 330. In addition, each integrated circuit may include circuits (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of the radio component 330.

[0088] Example cellular communication circuitry

[0089] Figure 4 Illustrates an example simplified block diagram of a cellular communication circuitry in accordance with some aspects. Note that Figure 4 the block diagram of the cellular communication circuitry is only one example of a possible cellular communication circuitry; other circuits, such as circuits including or coupled to sufficient antennas for different RATs to perform uplink activities using separate antennas, or circuits including or coupled to fewer antennas (e.g., antennas that may be shared among multiple RATs) are also possible. In accordance with some aspects, the cellular communication circuitry 230 may be included in a communication device (such as the communication device 106 described above). As noted above, among other devices, the communication device 106 may be a UE device, a mobile device or mobile station, a wireless device or wireless station, a desktop computer or computing device, a mobile computing device (e.g., a laptop, notebook or portable computing device), a tablet, and / or a combination of devices.

[0090] The cellular communication circuitry 230 may be (e.g., communicatively; directly or indirectly) coupled to one or more antennas, such as antennas 235a, 235b, and 236 as shown. In some aspects, the cellular communication circuitry 230 may include dedicated receive chains for multiple RATs (including and / or coupled to (e.g., communicatively; directly or indirectly) dedicated processors and / or radio components) (e.g., a first receive chain for LTE and a second receive chain for 5G Nr). For example, as Figure 4 shown, the cellular communication circuitry 230 may include a first modem 410 and a second modem 420. The first modem 410 may be configured to communicate according to a first RAT (e.g., such as LTE or LTE-A), and the second modem 420 may be configured to communicate according to a second RAT (e.g., such as 5G NR).

[0091] As shown in the figure, the first modem 410 may include one or more processors 412 and a memory 416 that communicates with the processors 412. The modem 410 may communicate with a radio frequency (RF) front end 430. The RF front end 430 may include circuitry for transmitting and receiving radio signals. For example, the RF front end 430 may include a receive circuit (RX) 432 and a transmit circuit (TX) 434. In some aspects, the receive circuit 432 may communicate with a downlink (DL) front end 450, which may include circuitry for receiving radio signals via antenna 235a.

[0092] Similarly, the second modem 420 may include one or more processors 422 and a memory 426 that communicates with the processors 422. The modem 420 may communicate with an RF front end 440. The RF front end 440 may include circuitry for transmitting and receiving radio signals. For example, the RF front end 440 may include a receive circuit 442 and a transmit circuit 444. In some aspects, the receive circuit 442 may communicate with a DL front end 460, which may include circuitry for receiving radio signals via antenna 235b.

[0093] In some aspects, a switch 470 may couple the transmit circuit 434 to an uplink (UL) front end 472. Additionally, the switch 470 may couple the transmit circuit 444 to the UL front end 472. The UL front end 472 may include circuitry for transmitting radio signals via antenna 236. Thus, when the cellular communication circuit 230 receives an instruction to transmit according to a first RAT (e.g., as supported by the first modem 410), the switch 470 may be switched to a first state that allows the first modem 410 to transmit signals according to the first RAT (e.g., via a transmit chain including the transmit circuit 434 and the UL front end 472). Similarly, when the cellular communication circuit 230 receives an instruction to transmit according to a second RAT (e.g., as supported by the second modem 420), the switch 470 may be switched to a second state that allows the second modem 420 to transmit signals according to the second RAT (e.g., via a transmit chain including the transmit circuit 444 and the UL front end 472).

[0094] As described herein, the first modem 410 and / or the second modem 420 may include hardware and software components for implementing any of the various features and techniques described herein. For example, by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium), the processors 412, 422 may be configured to implement some or all of the features described herein. Alternatively (or in addition), the processors 412, 422 may be configured as programmable hardware elements, such as field programmable gate arrays (FPGAs) or as application specific integrated circuits (ASICs). Alternatively (or in addition), in combination with one or more of the other components 430, 432, 434, 440, 442, 444, 450, 470, 472, 235, and 236, the processors 412, 422 may be configured to implement some or all of the features described herein.

[0095] In addition, as described herein, the processors 412, 422 may include one or more processing elements. Accordingly, the processors 412, 422 may include one or more integrated circuits (ICs) configured to perform the functions of the processors 412, 422. Further, each integrated circuit may include circuitry (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of the processors 412, 422.

[0096] In some aspects, the cellular communication circuitry 230 may include only one transmit / receive chain. For example, the cellular communication circuitry 230 may not include the modem 420, the RF front end 440, the DL front end 460, and / or the antenna 235b. As another example, the cellular communication circuitry 230 may not include the modem 410, the RF front end 430, the DL front end 450, and / or the antenna 235a. In some aspects, the cellular communication circuitry 230 may also not include the switch 470, and the RF front end 430 or the RF front end 440 may communicate with the UL front end 472, e.g., directly.

[0097] Turning to Figure 5 , code example 500 illustrates the configuration of CSI-RS resource sets, SSBs for L1 measurements, and associated CSI reports during the handover / handover preparation phase. In Figure 5In it, a plurality of boxes 510 to 550 are shown, where the ICBM framework is modified for L1 measurement configuration and reporting of candidate cells to trigger an L1 / L2-based cell handover / transfer procedure. During the handover / transfer preparation phase, a terminal (i.e., a UE such as one of the UEs 106) can be configured with a set of candidate CGs, where each CG consists of one or more candidate cells. Within each cell group, CSI reporting can be configured as part of the configuration for each candidate cell via RRC signaling. Each candidate cell can be provided with a cell group index (i.e., CellGroupID) and a separate cell identifier (i.e., sCell ID or sCellIndex) for cell handover operations.

[0098] In some embodiments, within each CG, one candidate cell can be configured as a candidate PCell via a corresponding information element (such as the scellConfig shown in box 510). Additionally, as shown in box 520, each CSI report can be identified by a CSI report ID. Additionally, as shown in boxes 530 to 550, at least one TRS resource set can be configured according to an aperiodic trigger status such that the aperiodic TRS on the candidate cell is triggered by a cell handover command to achieve finer T / F tracking for receiving the PDSCH.

[0099] The cell handover command can trigger a cell handover operation, where communication with the terminal is switched from the current serving cell to a candidate cell among the available candidate cells. Additionally, the terminal can perform the cell handover operation according to the CG configuration, the individual cell configuration, or the CSI report configuration. The CSI report activation / deactivation procedure can include activating one or more CSI resource sets associated with the CSI report configuration.

[0100] In Figure 5 Code example 500 shows a plurality of information parameters that indicate the CG configuration (i.e., CellGroupConfig in box 510), one or more cell configurations corresponding to one or more candidate cells in the CG (i.e., SCellConfig in box 520), and the CSI report configuration for one or more candidate cells in the CG (i.e., CSI-MeasConfig in boxes 530 to 550). When receiving the information parameters shown in code example 500, the terminal can determine a first plurality of indicators from the code. At this time, based on the plurality of information parameters, the terminal can identify the CG, each candidate cell in the CG, and the CSI reports of the candidate cells in the CG. Based on the indicators, the terminal can perform the CSI report activation / deactivation procedure, which indicates the CSI reports in the CSI reports to be activated or deactivated for the candidate cells in the CG.

[0101] In block 510, information elements CellGroupConfig information parameters (i.e., configuration parameters) from the network. This information element includes at least one special cell configuration (i.e., SpCellConfig). In some embodiments, the information element CellGroupId is used to identify a cell group. The value 0 identifies the primary cell group. Other values may identify secondary cell groups. In addition, the information element SCellConfig indicates the parameters of the SpCell for this CG (i.e., the PCell of the MCG or the PSCell of the SCG). In addition to the above information elements, block 510 also includes an sCellToAddModList to list the possible number of SCell or serving cells that can be added or modified.

[0102] In block 520, the information SCellConfig is used to configure candidate cells from multiple cells in the CG. In addition, the information element SCellIndex is used to identify the SCell or PSCell across multiple CGs. In this block, the information element CSI-MeasConfig is set.

[0103] In blocks 530 to 550, the information element CSI-MeasConfig is used to configure the CSI-RS (i.e., reference signal) belonging to the serving cell including CSI-MeasConfig, the channel state information report to be sent on the PUCCH on the serving cell including CSI-MeasConfig, and the channel state information report on the PUSCH triggered by DCI received on the serving cell including CSI-MeasConfig. In block 530, the CSI-RS resources for L1 measurement include at least one TRS resource set on the candidate cell. Block 540 shows the SSB configured for L1 measurement, while block 550 shows the CSI report configuration

[0104] The information elements shown in blocks 510 to 550 can be additionally used and / or configured in the manner described in 3GPP TS 38.214 and TS 38.331.

[0105] Figure 6 Table 600 is shown, which illustrates the MAC-CE configured to activate / deactivate the PCell / SpCell CSI report of candidate cells in the CG. In Figure 6 it, for a given CG, up to two CSI reports and up to eight candidate cells are shown to be supported.

[0106] In Figure 6Among them, the activation / deactivation of a single CG CSI report of the MAC-CE. In Table 600, the MAC sub-header 610 is shown to have a fixed-size logical channel ID (LCID), and may include fields containing "cell group ID", "candidate cell index", and "CSI report configuration ID". In the MAC sub-header 610, five fields are marked as reserved (R), and three fields are marked as "cell group ID". The characteristics of the MAC sub-header 610 may be similar to those discussed in 3GPP TS 38.321.

[0107] The "cell group ID" may indicate the identity of the CG to which the MAC-CE is applied. In addition, the "candidate cell index" may indicate the SCell "C" in the CG with the SCell index "i". In this regard, C i = 0 indicates the SCell with the SCell index "i" to which the MAC-CE is not applied, and C i = 1 indicates the SCell with the SCell index "i" to which the MAC-CE is applied. The "candidate cell index" is shown in row 620, where all eight candidate cells are indexed from C 0 to C 7 are indexed.

[0108] The "CSI report configuration ID" may indicate the activation / deactivation status of a specific CSI report in a series of CSI reports configured for the CG according to the CSI report configuration. In row 630, the "CSI report configuration ID" is shown to be indexed by the values of "i" and "j" of the candidate cell "A" of the cell. In this regard, "i" is the SCell index shown in row 610, and "j" is the "j-th" PCell / SpCell report configured on the indicated candidate cell with the "candidate cell index" of "i". The value of "j" can be j = 0,...M - 1, where the maximum number of reports "M" can be configured by RRC signaling, or (pre)-configured via additional parameters dynamically modified and / or hard-coded in the specification. In any case, if the value of "M" is M = 1, the "CSI report configuration ID" field and the "candidate cell index" in the MAC-CE are not required. The "CSI report configuration ID" is shown in row 630, where all eight candidate cells are indexed by A 0,0 to A 7,1 of A i,j are indexed.

[0109] Go to Figure 7 , which shows Table 700, which illustrates the MAC-CE configured to activate / deactivate the PCell / SpCell CSI reports of candidate cells in multiple CGs. In Figure 7 , multiple CSI reports are shown to support multiple CGs.

[0110] In Table 600, the MAC sub-header 610 is shown to have a fixed-size logical channel ID (LCID), and may include fields containing a "CG bitmap", a "candidate cell index", and a "CSI report configuration ID". In the MAC sub-header 710, eight fields are labeled as "CG" with an index "i". The characteristics of the MAC sub-header 710 may be similar to those discussed in 3GPP TS 38.321.

[0111] The "CG bitmap" may indicate the identity of the CG with a CG ID having an index "i" to which the MAC-CE is applied. Additionally, the "candidate cell index" may indicate the SCell "C" in the CG having an SCell index "j" represented by "CG i ". In this regard, C i,j = 0 indicates the SCell with an SCell index "j" to which the MAC-CE is not applied, and C i,j = 1 indicates the SCell with an SCell index "j" to which the MAC-CE is applied. The "candidate cell index" is shown in row 730, where the candidate cells are indexed from C 0,0 to C 0,7 .

[0112] In one or more embodiments, the "CSI report configuration ID" may indicate the activation / deactivation status of the "k-th" CSI report in a series of CSI reports configured for a CG according to the CSI report configuration. In row 740, the "CSI report configuration ID" is shown to be indexed with the values of "i", "j", and "k" of the cell candidate cell "A". In this regard, "i" is the identity of the CG, and "j" is the SCell index shown in row 730. In row 740, "k" is the "k-th" PCell / SpCell report configured on the indicated candidate cell with a "candidate cell index" of "j". Given a CG i , the value of "j" can be j = 0,...M - 1, where the maximum number of reports "M" may be configured by RRC signaling, or (pre)-configured via additional parameters dynamically modified and / or hard-coded in the specification. In any case, if the value of "M" is M = 1, the "CSI report configuration ID" field and the "candidate cell index" in the MAC-CE are not required. The "CSI report configuration ID" is shown in row 740, where all candidate cells are indexed from A 0,0,0 to A 0,7,1 of A i,j,k . The enhancement provided by the bitmap is that the selection for a given CG i can provide an association with other instances of the same CG indexed with the same value "i", as shown in selection 720.

[0113] InFigure 8 In the example code 800, a structure for configuring a CSI trigger is illustrated. Figure 8 In the figure, multiple boxes 810 to box 830 are shown, in which the ICBM framework is modified so that the non-periodic CSI reporting of cells in the candidate CG is triggered by the CSI request field in the DCI sent on the active serving cell.

[0114] In one or more embodiments, the CSI trigger states may be used with the information element CSI-AperiodicTriggerStateList in the serving cell. These trigger states may be associated with one or more CSI reports configured for the deactivated cells in the candidate CG.

[0115] In one or more embodiments, box 810 indicates an ongoing configuration structure. In addition, box 820 includes additional information elements introduced in the present disclosure. These additional information elements include cellGroupId and sCellIndex. As described above, a given CG is identified in cellGroupId. In cellGroupId, the value 0 identifies the primary cell group. Other values ​​can identify the secondary cell group. sCellIndex is used to identify an SCell or PSCell. Box 830 shows that reportConfigId operates to identify the measurement report configuration for non-periodic CSI reporting.

[0116] Go to Figure 9 , shows a diagram 900 in which candidate cells in a CG are associated using trigger states. These trigger states are shown as being between 3 bits in length starting at "000" and ending at "111". In some embodiments, states "001", "010", "011", "100", "101", "110", and "111" are used as CSI trigger states. Figure 9 In the embodiment of the present invention, trigger states 930 to 950 may be any three trigger states from the aforementioned CSI trigger states. By way of non-limiting example, trigger state 930 may be equal to "001", trigger state 940 may be equal to "010", and trigger state 950 may be equal to "011".

[0117] As reference Figure 8As described, these trigger states can be configured for activation / deactivation of candidate cells across the same CG or different CGs. In FIG. 900, cell group 960 and cell group 970 can be target CGs respectively including deactivated candidate cells 961 to 964 and deactivated candidate cells 971 to 974. The deactivated candidate cells include individual CSI reports, and as their reference numbers increase, frequency 910 increases. For example, the frequency of cell 961 is lower than that of cell 964. Each deactivated candidate cell is shown to include a specific report for which a given cell is (pre)-configured. In cell group 960, cells 961 to 964 include CSI reports #1, #5, #1, and #3 respectively. In cell group 970, cells 971 to 974 include CSI reports #1, #3, #24, and #9 respectively.

[0118] In the case where trigger states 930 to 950 are requested in multiple CSI requests 920, the CSI trigger state “001” in the DCI sent on the serving cell can be used to trigger CSI reports #1, #5, #1, and #3 on deactivated candidate cells 961 to 964 in cell group 960. In addition, the trigger state “010” in the DCI sent on the serving cell can be used to trigger CSI reports #1, #3, #24, and #9 on deactivated candidate cells 971 to 764 in cell group 970. Among the CSI trigger states, “011” in the DCI sent on the serving cell can be used to trigger CSI reports #5 and #3 on deactivated candidate cell 962 in cell group 960 and candidate cell 972 in cell group 970.

[0119] Turning to Figure 10 , FIG. 1000 shows an example of a DCI format for triggering an aperiodic CSI report on cells of one or more candidate CGs. FIG. 1000 includes at least two formats 110A and 1010B. The first format 1010A includes a CSI request 1020, a cell group ID 1030, at least one candidate cell 1040, a CSI report configuration ID 1050, other or additional fields 1060, and a cyclic redundancy check (CRC) 1070. The second format 1010B includes a CSI request 1020, a plurality of information blocks (i.e., numbered blocks 1080A to 1080D), other or additional fields 1060, and a cyclic redundancy check (CRC) 1070. In the second format 1010B, each block can be configured to include each of the cell group ID 1030, at least one candidate cell 1040, and the CSI report configuration ID 1050 to trigger CSI reports across multiple CGs.

[0120] In one or more embodiments, DCI formats can be used to schedule PDSCH or PUSCH or for no data scheduling. The physical resources for transmitting triggered CSI reports can be defined according to the channels being used. Using PUCCH resources, the PUCCH resources for CSI reporting on the serving cell can be provided by DCI, which can be selected from multiple PUCCH resources configured by RRC signaling. In this regard, CSI reports can be triggered by DCI scheduling PDSCH or in the case of no data scheduling. In some embodiments, CSI reports are triggered in PUSCH resources multiplexed with scheduled uplink data. The PUSCH resources and MCS can be provided by the scheduling DCI.

[0121] In the first format 1010A and the second format 1010B, specific information is sent by a given format. In some embodiments, the "CSI report configuration ID" field indicates the triggering status of the "k-th" aperiodic CSI report configured on the indicated candidate cell. The bitmap of CG is included in each of blocks 1080A to 1080D of the second format 1010B.

[0122] In one or more embodiments, formats 1010A and 1010B can be introduced to trigger aperiodic CSI reports for deactivated candidate cells in one or more CGs (i.e., multi-CG). In these formats, the measurement time can be used for L1-RSRP measurements on the candidate cells. Considering the fact that the candidate cells are still in the deactivated state, a specific time for CSI reporting can be introduced as the CSI report processing time T for the deactivated candidate cells. CSI,1 In some embodiments, when the CSI request field on DCI triggers one or more CSI reports on PUSCH, the terminal can provide a valid CSI report for the trigger report starting no earlier than T relative to the last symbol of the PDCCH that triggers the CSI report. CSI,1 In other embodiments, if the first symbol of the PUCCH or PUSCH resource for carrying the CSI report is earlier than T CSI,1 starts, the terminal can ignore the trigger.

[0123] Figure 11 Illustrates a flowchart of performing method 1100 in a block sequence. According to one or more embodiments, method 1100 can be performed by a terminal that transmits or receives communications with one or more cells grouped in a CG. At 1110, the flowchart begins with the terminal being configured to receive a plurality of information parameters (i.e., configuration parameters), the plurality of information parameters (i.e., configuration parameters) indicating CG configuration, one or more cell configurations corresponding to one or more candidate cells in the CG, and CSI report configuration for candidate cells in the CG.

[0124] At 1120, the flow chart continues, where the terminal is configured to determine a plurality of indicators based on information parameters, the plurality of indicators identifying a CG, one or more candidate cells in the CG, and a plurality of CSI reports for one or more candidate cells in the CG. As defined above, the identifier of the CG may be the information element CellGroupID, the identification of each cell may be performed via the SCellIndex or other index, and the CSI report may be indicated using the information element CSI-MeasConfig.

[0125] At 1130, the flow chart continues, where the terminal is configured to perform a CSI report activation / deactivation procedure, the CSI report activation / deactivation procedure indicating one or more CSI reports to be activated or deactivated for one or more candidate cells in the CG based on the indicators. As defined above, the CSI report activation / deactivation procedure may be configured and reported with reference to Figures 5 to 10 the manner described. In addition, the CSI report activation / deactivation procedure may be configured and reported with reference to the manner described in 3GPP TS 38.212, TS 38.214, TS 38.215, and TS 38.331.

[0126] At 1140, the flow chart continues, where the terminal is configured to receive a cell handover command, the cell handover command triggering a cell handover operation, in which the communication with the terminal is switched from the current serving cell to a first candidate cell among one or more candidate cells. As defined above, the cell handover command may trigger a cell handover operation, where the terminal may perform the cell handover operation according to the CG configuration, individual cell configuration, or CSI report configuration. The CSI report activation / deactivation procedure may include activating one or more CSI resource sets associated with the CSI report configuration.

[0127] The flow chart ends at 1150, where the terminal performs a cell handover operation according to the CG configuration, one or more cell configurations, or CSI report configuration. The cell handover operation is performed according to the example described with reference to Figures 6 to 10 the description.

[0128] The use of the connectivity term "and / or" is intended to represent all possible alternative forms of the conjunctions "and" and "or". For example, the statement "configuration of A and / or B" includes the meanings of the statements "configuration of A and B" and "configuration of A or B".

[0129] It is well known that the use of personally identifiable information should follow privacy policies and practices that are recognized as meeting or exceeding industry or government requirements for maintaining user privacy. Specifically, personally identifiable information data should be managed and processed to minimize the risk of inadvertent or unauthorized access or use, and the nature of the authorized use should be clearly explained to the user.

[0130] Aspects of the present disclosure can be implemented in any of a variety of forms. For example, some aspects can be implemented as a computer-implemented method, a computer-readable memory medium, or a computer system. Other aspects can be implemented using one or more custom-designed hardware devices such as an ASIC. Still other aspects can be implemented using one or more programmable hardware elements such as an FPGA.

[0131] In some aspects, a non-transitory computer-readable memory medium can be configured such that it stores program instructions and / or data, where the program instructions, when executed by a computer system, cause the computer system to perform a method (e.g., any of the method aspects described herein, or any combination of the method aspects described herein, or any subset of any of the method aspects described herein, or any combination of such subsets).

[0132] In some aspects, a device (e.g., UE 106, BS 102) can be configured to include a processor (or a set of processors) and a memory medium, where the memory medium stores program instructions, where the processor is configured to read and execute the program instructions from the memory medium, where the program instructions are executable to implement any of the various method aspects described herein (or any combination of the method aspects described herein, or any subset of any of the method aspects described herein, or any combination of such subsets). The device can be implemented in any of a variety of forms.

[0133] Although the above aspects have been described in considerable detail, many variations and modifications will become apparent to those skilled in the art once the above disclosure is fully understood. It is intended that the following claims be interpreted to cover all such variations and modifications.

Claims

1. A terminal, the terminal comprising: a receiver configured to receive a plurality of information parameters indicating a cell group (CG) configuration, one or more cell configurations corresponding to one or more candidate cells in the CG, and a channel state information (CSI) reporting configuration for the one or more candidate cells in the CG; a processor configured to: determine, based on the plurality of information parameters, a first plurality of indicators identifying the CG, the one or more candidate cells in the CG, and a plurality of CSI reports for the one or more candidate cells in the CG, and perform a CSI reporting activation / deactivation procedure that indicates, based on the first plurality of indicators, one or more of the plurality of CSI reports to be activated or deactivated for the one or more candidate cells in the CG.

2. The terminal according to claim 1, wherein: the receiver is further configured to receive a cell handover command that triggers a cell handover operation in which communication with the terminal is switched from a current serving cell to a first candidate cell among the one or more candidate cells, and the processor is further configured to perform the cell handover operation according to the CG configuration, the one or more cell configurations, or the CSI reporting configuration.

3. The terminal according to claim 2, wherein: the CSI reporting activation / deactivation procedure includes activating one or more CSI resource sets associated with the CSI reporting configuration.

4. The terminal according to claim 3, wherein: the one or more candidate cells are part of the same CG, the CSI reporting configuration includes one or more CSI reports among the plurality of CSI reports associated with corresponding CSI resource sets on the one or more candidate cells, and a medium access control (MAC)-control element (CE) includes a second plurality of indicators for activating or deactivating the one or more CSI reports associated with the one or more candidate cells in the same CG.

5. The terminal according to claim 4, wherein the second plurality of indicators include: a cell group ID indicating the identity of the CG, a candidate cell index indicating a specific cell in the CG, and a CSI reporting configuration ID indicating an activation or deactivation status of a specific CSI report in a series of CSI reports configured for the CG according to the CSI reporting configuration.

6. The terminal according to claim 3, wherein: the one or more candidate cells are part of a plurality of CGs, the CSI reporting configuration includes one or more CSI reports associated with corresponding CSI resource sets on the one or more candidate cells, and The media access control (MAC)-control element (CE) includes a second plurality of indicators for activating or deactivating one or more CSI reports associated with one or more of the candidate cells in the plurality of CGs.

7. The terminal according to claim 4, wherein the second plurality of indicators comprises: a cell group bitmap that is a one-to-one mapping with cell group IDs from a plurality of cell group IDs, each cell group ID indicating the identity of a CG in the plurality of CGs, a candidate cell index indicating a specific candidate cell within a CG in the plurality of CGs, and a CSI report configuration ID that indicates the activation or deactivation status of a specific CSI report in a series of CSI reports configured for one or more of the candidate cells in the plurality of CGs according to the CSI report configuration.

8. The terminal according to claim 3, wherein the plurality of indicators comprises: one or more CSI trigger states that indicate the activation or deactivation of one or more of the CSI reports in the plurality of CSI reports corresponding to the one or more cells, wherein the association between the CSI trigger state and the one or more CSI reports is configured by radio resource control (RRC) signaling.

9. The terminal according to claim 3, wherein the plurality of indicators comprises: information for triggering an aperiodic CSI report sent by the terminal using physical uplink control channel (PUCCH) resources or physical uplink shared channel (PUSCH) resources.

10. The terminal according to claim 9, wherein the information for triggering an aperiodic CSI report comprises: an indication identifying the one or more candidate cells in one or more CGs and a CSI calculation time indicating the processing time of at least one CSI report.

11. The terminal according to claim 1, wherein: at least one of the one or more candidate cells is a deactivated candidate cell.

12. The terminal according to claim 1, wherein: the CSI report configuration is a layer 1 (L1) measurement configuration.

13. The terminal according to claim 2, wherein: the cell handover operation is based on a layer 1 (L1) / layer 2 (L2) cell handover procedure.

14. A method, the method being substantially described as herein with reference to each figure or any combination of the figures included herein or with reference to each paragraph or any combination of paragraphs in the detailed description or according to any of the terminals according to claims 1 to 13.

15. A wireless device configured to perform any action or combination of actions substantially described as herein in the detailed description or in any of the terminals according to claims 1 to 13 included in the wireless device.

16. A wireless station configured to perform any action or combination of actions substantially described herein in the detailed description or in any of the terminals as claimed in claims 1 to 13 included in the wireless station.

17. A non - volatile computer - readable medium storing instructions that, when executed, cause the performance of any action or combination of actions substantially described herein in the detailed description or in any of the terminals as claimed in claims 1 to 13.

18. An integrated circuit configured to perform any action or combination of actions substantially described herein in the detailed description or in any of the terminals as claimed in claims 1 to 13.

19. A method comprising any action or combination of actions substantially described herein in the detailed description or in any of the terminals as claimed in claims 1 to 13.

20. A method substantially described herein with reference to each or any combination of the figures included herein or with reference to each or any combination of the paragraphs in the detailed description or in any of the terminals as claimed in claims 1 to 13.

21. A wireless device configured to perform any action or combination of actions substantially described herein in the detailed description or in any of the terminals as claimed in claims 1 to 13 included in the wireless device.

22. A wireless station configured to perform any action or combination of actions substantially described herein in the detailed description or in any of the terminals as claimed in claims 1 to 13 included in the wireless station.

23. A non - volatile computer - readable medium storing instructions that, when executed, cause the performance of any action or combination of actions substantially described herein in the detailed description or in any of the terminals as claimed in claims 1 to 13.

24. An integrated circuit configured to perform any action or combination of actions substantially described herein in the detailed description or in any of the terminals as claimed in claims 1 to 13.

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